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6a885fd0 | 1 | /* |
77ab5fd2 | 2 | * Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 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" |
f4248336 | 29 | #include "openvswitch/ofp-util.h" |
4663f9e0 | 30 | #include "ovs-thread.h" |
6a885fd0 BP |
31 | #include "packets.h" |
32 | #include "random.h" | |
ee89ea7b | 33 | #include "openvswitch/shash.h" |
6a885fd0 | 34 | #include "socket-util.h" |
9558d2a5 | 35 | #include "tun-metadata.h" |
6a885fd0 | 36 | #include "unaligned.h" |
86f35fb5 | 37 | #include "util.h" |
e03c096d | 38 | #include "openvswitch/ofp-errors.h" |
e6211adc | 39 | #include "openvswitch/vlog.h" |
816fd533 BP |
40 | |
41 | VLOG_DEFINE_THIS_MODULE(meta_flow); | |
6a885fd0 | 42 | |
13751fd8 JR |
43 | #define FLOW_U32OFS(FIELD) \ |
44 | offsetof(struct flow, FIELD) % 4 ? -1 : offsetof(struct flow, FIELD) / 4 | |
45 | ||
6a885fd0 BP |
46 | #define MF_FIELD_SIZES(MEMBER) \ |
47 | sizeof ((union mf_value *)0)->MEMBER, \ | |
48 | 8 * sizeof ((union mf_value *)0)->MEMBER | |
49 | ||
7f98c44d JR |
50 | extern const struct mf_field mf_fields[MFF_N_IDS]; /* Silence a warning. */ |
51 | ||
52 | const struct mf_field mf_fields[MFF_N_IDS] = { | |
a4ce8b25 | 53 | #include "meta-flow.inc" |
6a885fd0 BP |
54 | }; |
55 | ||
4663f9e0 BP |
56 | /* Maps from an mf_field's 'name' or 'extra_name' to the mf_field. */ |
57 | static struct shash mf_by_name; | |
28da1f8f | 58 | |
816fd533 BP |
59 | /* Rate limit for parse errors. These always indicate a bug in an OpenFlow |
60 | * controller and so there's not much point in showing a lot of them. */ | |
61 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
62 | ||
e3e96509 JR |
63 | #define MF_VALUE_EXACT_8 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
64 | #define MF_VALUE_EXACT_16 MF_VALUE_EXACT_8, MF_VALUE_EXACT_8 | |
65 | #define MF_VALUE_EXACT_32 MF_VALUE_EXACT_16, MF_VALUE_EXACT_16 | |
66 | #define MF_VALUE_EXACT_64 MF_VALUE_EXACT_32, MF_VALUE_EXACT_32 | |
67 | #define MF_VALUE_EXACT_128 MF_VALUE_EXACT_64, MF_VALUE_EXACT_64 | |
68 | #define MF_VALUE_EXACT_INITIALIZER { .tun_metadata = { MF_VALUE_EXACT_128 } } | |
69 | ||
70 | const union mf_value exact_match_mask = MF_VALUE_EXACT_INITIALIZER; | |
71 | ||
4663f9e0 | 72 | static void nxm_init(void); |
b5e5143b | 73 | |
6a885fd0 BP |
74 | /* Returns the field with the given 'name', or a null pointer if no field has |
75 | * that name. */ | |
76 | const struct mf_field * | |
77 | mf_from_name(const char *name) | |
78 | { | |
4663f9e0 | 79 | nxm_init(); |
6a885fd0 BP |
80 | return shash_find_data(&mf_by_name, name); |
81 | } | |
82 | ||
28da1f8f | 83 | static void |
4663f9e0 | 84 | nxm_do_init(void) |
28da1f8f | 85 | { |
216a32dd | 86 | int i; |
28da1f8f | 87 | |
4663f9e0 | 88 | shash_init(&mf_by_name); |
216a32dd JR |
89 | for (i = 0; i < MFF_N_IDS; i++) { |
90 | const struct mf_field *mf = &mf_fields[i]; | |
91 | ||
92 | ovs_assert(mf->id == i); /* Fields must be in the enum order. */ | |
93 | ||
4663f9e0 BP |
94 | shash_add_once(&mf_by_name, mf->name, mf); |
95 | if (mf->extra_name) { | |
96 | shash_add_once(&mf_by_name, mf->extra_name, mf); | |
97 | } | |
28da1f8f | 98 | } |
28da1f8f BP |
99 | } |
100 | ||
4663f9e0 BP |
101 | static void |
102 | nxm_init(void) | |
103 | { | |
104 | static pthread_once_t once = PTHREAD_ONCE_INIT; | |
105 | pthread_once(&once, nxm_do_init); | |
106 | } | |
107 | ||
35c1f798 BP |
108 | /* Consider the two value/mask pairs 'a_value/a_mask' and 'b_value/b_mask' as |
109 | * restrictions on a field's value. Then, this function initializes | |
110 | * 'dst_value/dst_mask' such that it combines the restrictions of both pairs. | |
111 | * This is not always possible, i.e. if one pair insists on a value of 0 in | |
112 | * some bit and the other pair insists on a value of 1 in that bit. This | |
113 | * function returns false in a case where the combined restriction is | |
114 | * impossible (in which case 'dst_value/dst_mask' is not fully initialized), | |
115 | * true otherwise. | |
116 | * | |
117 | * (As usually true for value/mask pairs in OVS, any 1-bit in a value must have | |
118 | * a corresponding 1-bit in its mask.) */ | |
119 | bool | |
120 | mf_subvalue_intersect(const union mf_subvalue *a_value, | |
121 | const union mf_subvalue *a_mask, | |
122 | const union mf_subvalue *b_value, | |
123 | const union mf_subvalue *b_mask, | |
124 | union mf_subvalue *dst_value, | |
125 | union mf_subvalue *dst_mask) | |
126 | { | |
127 | for (int i = 0; i < ARRAY_SIZE(a_value->be64); i++) { | |
128 | ovs_be64 av = a_value->be64[i]; | |
129 | ovs_be64 am = a_mask->be64[i]; | |
130 | ovs_be64 bv = b_value->be64[i]; | |
131 | ovs_be64 bm = b_mask->be64[i]; | |
132 | ovs_be64 *dv = &dst_value->be64[i]; | |
133 | ovs_be64 *dm = &dst_mask->be64[i]; | |
134 | ||
135 | if ((av ^ bv) & (am & bm)) { | |
136 | return false; | |
137 | } | |
138 | *dv = av | bv; | |
139 | *dm = am | bm; | |
140 | } | |
141 | return true; | |
142 | } | |
143 | ||
144 | /* Returns the "number of bits" in 'v', e.g. 1 if only the lowest-order bit is | |
145 | * set, 2 if the second-lowest-order bit is set, and so on. */ | |
146 | int | |
147 | mf_subvalue_width(const union mf_subvalue *v) | |
148 | { | |
149 | return 1 + bitwise_rscan(v, sizeof *v, true, sizeof *v * 8 - 1, -1); | |
150 | } | |
151 | ||
152 | /* For positive 'n', shifts the bits in 'value' 'n' bits to the left, and for | |
153 | * negative 'n', shifts the bits '-n' bits to the right. */ | |
154 | void | |
155 | mf_subvalue_shift(union mf_subvalue *value, int n) | |
156 | { | |
157 | if (n) { | |
158 | union mf_subvalue tmp; | |
159 | memset(&tmp, 0, sizeof tmp); | |
160 | ||
161 | if (n > 0 && n < 8 * sizeof tmp) { | |
162 | bitwise_copy(value, sizeof *value, 0, | |
163 | &tmp, sizeof tmp, n, | |
164 | 8 * sizeof tmp - n); | |
165 | } else if (n < 0 && n > -8 * sizeof tmp) { | |
166 | bitwise_copy(value, sizeof *value, -n, | |
167 | &tmp, sizeof tmp, 0, | |
168 | 8 * sizeof tmp + n); | |
169 | } | |
170 | *value = tmp; | |
171 | } | |
172 | } | |
173 | ||
77ab5fd2 BP |
174 | /* Appends a formatted representation of 'sv' to 's'. */ |
175 | void | |
176 | mf_subvalue_format(const union mf_subvalue *sv, struct ds *s) | |
177 | { | |
178 | ds_put_hex(s, sv, sizeof *sv); | |
179 | } | |
180 | ||
6a885fd0 BP |
181 | /* Returns true if 'wc' wildcards all the bits in field 'mf', false if 'wc' |
182 | * specifies at least one bit in the field. | |
183 | * | |
184 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
185 | * meets 'mf''s prerequisites. */ | |
186 | bool | |
187 | mf_is_all_wild(const struct mf_field *mf, const struct flow_wildcards *wc) | |
188 | { | |
189 | switch (mf->id) { | |
a79f29f2 AZ |
190 | case MFF_DP_HASH: |
191 | return !wc->masks.dp_hash; | |
192 | case MFF_RECIRC_ID: | |
193 | return !wc->masks.recirc_id; | |
18080541 BP |
194 | case MFF_CONJ_ID: |
195 | return !wc->masks.conj_id; | |
4fe3445a | 196 | case MFF_TUN_SRC: |
0ad90c84 | 197 | return !wc->masks.tunnel.ip_src; |
4fe3445a | 198 | case MFF_TUN_DST: |
0ad90c84 | 199 | return !wc->masks.tunnel.ip_dst; |
7dad8e9a TLSC |
200 | case MFF_TUN_IPV6_SRC: |
201 | return ipv6_mask_is_any(&wc->masks.tunnel.ipv6_src); | |
202 | case MFF_TUN_IPV6_DST: | |
203 | return ipv6_mask_is_any(&wc->masks.tunnel.ipv6_dst); | |
0ad90c84 | 204 | case MFF_TUN_ID: |
b666962b | 205 | return !wc->masks.tunnel.tun_id; |
4fe3445a | 206 | case MFF_TUN_TOS: |
b666962b | 207 | return !wc->masks.tunnel.ip_tos; |
4fe3445a | 208 | case MFF_TUN_TTL: |
b666962b | 209 | return !wc->masks.tunnel.ip_ttl; |
4fe3445a | 210 | case MFF_TUN_FLAGS: |
b666962b | 211 | return !(wc->masks.tunnel.flags & FLOW_TNL_PUB_F_MASK); |
ac6073e3 MC |
212 | case MFF_TUN_GBP_ID: |
213 | return !wc->masks.tunnel.gbp_id; | |
214 | case MFF_TUN_GBP_FLAGS: | |
215 | return !wc->masks.tunnel.gbp_flags; | |
1cb20095 JG |
216 | CASE_MFF_TUN_METADATA: |
217 | return !ULLONG_GET(wc->masks.tunnel.metadata.present.map, | |
218 | mf->id - MFF_TUN_METADATA0); | |
969fc56c | 219 | case MFF_METADATA: |
26720e24 | 220 | return !wc->masks.metadata; |
0bdc4bec | 221 | case MFF_IN_PORT: |
72333065 | 222 | case MFF_IN_PORT_OXM: |
4e022ec0 | 223 | return !wc->masks.in_port.ofp_port; |
1b567fb9 AA |
224 | case MFF_SKB_PRIORITY: |
225 | return !wc->masks.skb_priority; | |
1362e248 JG |
226 | case MFF_PKT_MARK: |
227 | return !wc->masks.pkt_mark; | |
07659514 JS |
228 | case MFF_CT_STATE: |
229 | return !wc->masks.ct_state; | |
230 | case MFF_CT_ZONE: | |
231 | return !wc->masks.ct_zone; | |
8e53fe8c JS |
232 | case MFF_CT_MARK: |
233 | return !wc->masks.ct_mark; | |
9daf2348 | 234 | case MFF_CT_LABEL: |
2ff8484b | 235 | return ovs_u128_is_zero(wc->masks.ct_label); |
0d7e2fe4 | 236 | CASE_MFF_REGS: |
26720e24 | 237 | return !wc->masks.regs[mf->id - MFF_REG0]; |
79fe0f46 BP |
238 | CASE_MFF_XREGS: |
239 | return !flow_get_xreg(&wc->masks, mf->id - MFF_XREG0); | |
b23ada8e JP |
240 | CASE_MFF_XXREGS: { |
241 | ovs_u128 value = flow_get_xxreg(&wc->masks, mf->id - MFF_XXREG0); | |
242 | return ovs_u128_is_zero(value); | |
243 | } | |
c61f3870 BP |
244 | case MFF_ACTSET_OUTPUT: |
245 | return !wc->masks.actset_output; | |
6a885fd0 | 246 | |
73c0ce34 | 247 | case MFF_ETH_SRC: |
26720e24 | 248 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 249 | case MFF_ETH_DST: |
26720e24 | 250 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 251 | case MFF_ETH_TYPE: |
26720e24 | 252 | return !wc->masks.dl_type; |
6a885fd0 | 253 | |
e878338b SH |
254 | case MFF_ARP_SHA: |
255 | case MFF_ND_SLL: | |
26720e24 | 256 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
257 | |
258 | case MFF_ARP_THA: | |
259 | case MFF_ND_TLL: | |
26720e24 | 260 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 261 | |
6a885fd0 | 262 | case MFF_VLAN_TCI: |
26720e24 | 263 | return !wc->masks.vlan_tci; |
441c57a9 | 264 | case MFF_DL_VLAN: |
26720e24 | 265 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 266 | case MFF_VLAN_VID: |
26720e24 | 267 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 268 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 269 | case MFF_VLAN_PCP: |
26720e24 | 270 | return !(wc->masks.vlan_tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 271 | |
b02475c5 | 272 | case MFF_MPLS_LABEL: |
8bfd0fda | 273 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK)); |
b02475c5 | 274 | case MFF_MPLS_TC: |
60df616f | 275 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TC_MASK)); |
b02475c5 | 276 | case MFF_MPLS_BOS: |
60df616f | 277 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_BOS_MASK)); |
bef3f465 BP |
278 | case MFF_MPLS_TTL: |
279 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TTL_MASK)); | |
b02475c5 | 280 | |
6a885fd0 | 281 | case MFF_IPV4_SRC: |
26720e24 | 282 | return !wc->masks.nw_src; |
6a885fd0 | 283 | case MFF_IPV4_DST: |
26720e24 | 284 | return !wc->masks.nw_dst; |
6a885fd0 BP |
285 | |
286 | case MFF_IPV6_SRC: | |
26720e24 | 287 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 288 | case MFF_IPV6_DST: |
26720e24 | 289 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 290 | |
32455024 | 291 | case MFF_IPV6_LABEL: |
26720e24 | 292 | return !wc->masks.ipv6_label; |
32455024 | 293 | |
851d3105 | 294 | case MFF_IP_PROTO: |
26720e24 | 295 | return !wc->masks.nw_proto; |
5d9499c4 | 296 | case MFF_IP_DSCP: |
1638b906 | 297 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 298 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 299 | case MFF_IP_ECN: |
26720e24 | 300 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 301 | case MFF_IP_TTL: |
26720e24 | 302 | return !wc->masks.nw_ttl; |
5d9499c4 | 303 | |
47284b1f | 304 | case MFF_ND_TARGET: |
26720e24 | 305 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 306 | |
7257b535 | 307 | case MFF_IP_FRAG: |
26720e24 | 308 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 309 | |
851d3105 | 310 | case MFF_ARP_OP: |
26720e24 | 311 | return !wc->masks.nw_proto; |
6a885fd0 | 312 | case MFF_ARP_SPA: |
26720e24 | 313 | return !wc->masks.nw_src; |
6a885fd0 | 314 | case MFF_ARP_TPA: |
26720e24 | 315 | return !wc->masks.nw_dst; |
6a885fd0 | 316 | |
73f33563 BP |
317 | case MFF_TCP_SRC: |
318 | case MFF_UDP_SRC: | |
0d56eaf2 | 319 | case MFF_SCTP_SRC: |
73f33563 BP |
320 | case MFF_ICMPV4_TYPE: |
321 | case MFF_ICMPV6_TYPE: | |
26720e24 | 322 | return !wc->masks.tp_src; |
73f33563 BP |
323 | case MFF_TCP_DST: |
324 | case MFF_UDP_DST: | |
0d56eaf2 | 325 | case MFF_SCTP_DST: |
73f33563 BP |
326 | case MFF_ICMPV4_CODE: |
327 | case MFF_ICMPV6_CODE: | |
26720e24 | 328 | return !wc->masks.tp_dst; |
dc235f7f JR |
329 | case MFF_TCP_FLAGS: |
330 | return !wc->masks.tcp_flags; | |
73f33563 | 331 | |
6a885fd0 BP |
332 | case MFF_N_IDS: |
333 | default: | |
428b2edd | 334 | OVS_NOT_REACHED(); |
6a885fd0 BP |
335 | } |
336 | } | |
337 | ||
338 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
339 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
340 | * purposes, or to 0 if it is wildcarded. | |
341 | * | |
342 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
343 | * meets 'mf''s prerequisites. */ | |
344 | void | |
345 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
346 | union mf_value *mask) | |
347 | { | |
fb15feb0 | 348 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
349 | } |
350 | ||
351 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
352 | * if the mask is valid, false otherwise. */ | |
353 | bool | |
354 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
355 | { | |
356 | switch (mf->maskable) { | |
357 | case MFM_NONE: | |
53cb9c3e JR |
358 | return (is_all_zeros(mask, mf->n_bytes) || |
359 | is_all_ones(mask, mf->n_bytes)); | |
6a885fd0 BP |
360 | |
361 | case MFM_FULLY: | |
362 | return true; | |
6a885fd0 BP |
363 | } |
364 | ||
428b2edd | 365 | OVS_NOT_REACHED(); |
6a885fd0 BP |
366 | } |
367 | ||
aff49b8c JR |
368 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. |
369 | * Sets inspected bits in 'wc', if non-NULL. */ | |
6a885fd0 | 370 | bool |
aff49b8c JR |
371 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow, |
372 | struct flow_wildcards *wc) | |
6a885fd0 BP |
373 | { |
374 | switch (mf->prereqs) { | |
375 | case MFP_NONE: | |
376 | return true; | |
6a885fd0 | 377 | case MFP_ARP: |
aff49b8c JR |
378 | return (flow->dl_type == htons(ETH_TYPE_ARP) || |
379 | flow->dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 BP |
380 | case MFP_IPV4: |
381 | return flow->dl_type == htons(ETH_TYPE_IP); | |
382 | case MFP_IPV6: | |
383 | return flow->dl_type == htons(ETH_TYPE_IPV6); | |
8069b0da | 384 | case MFP_VLAN_VID: |
aff49b8c | 385 | return is_vlan(flow, wc); |
b02475c5 SH |
386 | case MFP_MPLS: |
387 | return eth_type_mpls(flow->dl_type); | |
6a885fd0 BP |
388 | case MFP_IP_ANY: |
389 | return is_ip_any(flow); | |
6a885fd0 | 390 | case MFP_TCP: |
aff49b8c | 391 | return is_tcp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
6a885fd0 | 392 | case MFP_UDP: |
aff49b8c | 393 | return is_udp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
0d56eaf2 | 394 | case MFP_SCTP: |
aff49b8c | 395 | return is_sctp(flow, wc) && !(flow->nw_frag & FLOW_NW_FRAG_LATER); |
268a95e0 | 396 | case MFP_ICMPV4: |
aff49b8c | 397 | return is_icmpv4(flow, wc); |
6a885fd0 | 398 | case MFP_ICMPV6: |
aff49b8c | 399 | return is_icmpv6(flow, wc); |
6a885fd0 | 400 | case MFP_ND: |
aff49b8c | 401 | return is_nd(flow, wc); |
6a885fd0 | 402 | case MFP_ND_SOLICIT: |
aff49b8c | 403 | return is_nd(flow, wc) && flow->tp_src == htons(ND_NEIGHBOR_SOLICIT); |
6a885fd0 | 404 | case MFP_ND_ADVERT: |
aff49b8c | 405 | return is_nd(flow, wc) && flow->tp_src == htons(ND_NEIGHBOR_ADVERT); |
6a885fd0 BP |
406 | } |
407 | ||
428b2edd | 408 | OVS_NOT_REACHED(); |
6a885fd0 BP |
409 | } |
410 | ||
411 | /* Returns true if 'value' may be a valid value *as part of a masked match*, | |
412 | * false otherwise. | |
413 | * | |
414 | * A value is not rejected just because it is not valid for the field in | |
415 | * question, but only if it doesn't make sense to test the bits in question at | |
416 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
417 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
418 | * it is still legitimate to test just for those bits (see the documentation | |
419 | * for NXM_OF_VLAN_TCI in nicira-ext.h). On the other hand, there is never a | |
530180fd | 420 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
421 | bool |
422 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
423 | { | |
424 | switch (mf->id) { | |
a79f29f2 AZ |
425 | case MFF_DP_HASH: |
426 | case MFF_RECIRC_ID: | |
18080541 | 427 | case MFF_CONJ_ID: |
6a885fd0 | 428 | case MFF_TUN_ID: |
4fe3445a PS |
429 | case MFF_TUN_SRC: |
430 | case MFF_TUN_DST: | |
7dad8e9a TLSC |
431 | case MFF_TUN_IPV6_SRC: |
432 | case MFF_TUN_IPV6_DST: | |
4fe3445a PS |
433 | case MFF_TUN_TOS: |
434 | case MFF_TUN_TTL: | |
ac6073e3 MC |
435 | case MFF_TUN_GBP_ID: |
436 | case MFF_TUN_GBP_FLAGS: | |
9558d2a5 | 437 | CASE_MFF_TUN_METADATA: |
969fc56c | 438 | case MFF_METADATA: |
6a885fd0 | 439 | case MFF_IN_PORT: |
1b567fb9 | 440 | case MFF_SKB_PRIORITY: |
1362e248 | 441 | case MFF_PKT_MARK: |
07659514 | 442 | case MFF_CT_ZONE: |
8e53fe8c | 443 | case MFF_CT_MARK: |
9daf2348 | 444 | case MFF_CT_LABEL: |
0d7e2fe4 | 445 | CASE_MFF_REGS: |
79fe0f46 | 446 | CASE_MFF_XREGS: |
b23ada8e | 447 | CASE_MFF_XXREGS: |
6a885fd0 BP |
448 | case MFF_ETH_SRC: |
449 | case MFF_ETH_DST: | |
450 | case MFF_ETH_TYPE: | |
451 | case MFF_VLAN_TCI: | |
bef3f465 | 452 | case MFF_MPLS_TTL: |
6a885fd0 BP |
453 | case MFF_IPV4_SRC: |
454 | case MFF_IPV4_DST: | |
455 | case MFF_IPV6_SRC: | |
456 | case MFF_IPV6_DST: | |
457 | case MFF_IP_PROTO: | |
a61680c6 | 458 | case MFF_IP_TTL: |
6a885fd0 BP |
459 | case MFF_ARP_SPA: |
460 | case MFF_ARP_TPA: | |
461 | case MFF_ARP_SHA: | |
462 | case MFF_ARP_THA: | |
463 | case MFF_TCP_SRC: | |
464 | case MFF_TCP_DST: | |
465 | case MFF_UDP_SRC: | |
466 | case MFF_UDP_DST: | |
0d56eaf2 JS |
467 | case MFF_SCTP_SRC: |
468 | case MFF_SCTP_DST: | |
268a95e0 BP |
469 | case MFF_ICMPV4_TYPE: |
470 | case MFF_ICMPV4_CODE: | |
471 | case MFF_ICMPV6_TYPE: | |
472 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
473 | case MFF_ND_TARGET: |
474 | case MFF_ND_SLL: | |
475 | case MFF_ND_TLL: | |
476 | return true; | |
477 | ||
c61f3870 BP |
478 | case MFF_IN_PORT_OXM: |
479 | case MFF_ACTSET_OUTPUT: { | |
4e022ec0 | 480 | ofp_port_t port; |
72333065 JR |
481 | return !ofputil_port_from_ofp11(value->be32, &port); |
482 | } | |
483 | ||
530180fd | 484 | case MFF_IP_DSCP: |
7257b535 | 485 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
486 | case MFF_IP_DSCP_SHIFTED: |
487 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
488 | case MFF_IP_ECN: |
489 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 490 | case MFF_IP_FRAG: |
eadef313 | 491 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
dc235f7f JR |
492 | case MFF_TCP_FLAGS: |
493 | return !(value->be16 & ~htons(0x0fff)); | |
6a885fd0 BP |
494 | |
495 | case MFF_ARP_OP: | |
496 | return !(value->be16 & htons(0xff00)); | |
497 | ||
441c57a9 | 498 | case MFF_DL_VLAN: |
6a885fd0 | 499 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
500 | case MFF_VLAN_VID: |
501 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 502 | |
441c57a9 | 503 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 504 | case MFF_VLAN_PCP: |
24016f5a | 505 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 506 | |
fa8223b7 JP |
507 | case MFF_IPV6_LABEL: |
508 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
509 | ||
b02475c5 SH |
510 | case MFF_MPLS_LABEL: |
511 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
512 | ||
513 | case MFF_MPLS_TC: | |
514 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
515 | ||
516 | case MFF_MPLS_BOS: | |
517 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
518 | ||
b666962b JG |
519 | case MFF_TUN_FLAGS: |
520 | return !(value->be16 & ~htons(FLOW_TNL_PUB_F_MASK)); | |
521 | ||
07659514 JS |
522 | case MFF_CT_STATE: |
523 | return !(value->be32 & ~htonl(CS_SUPPORTED_MASK)); | |
524 | ||
6a885fd0 BP |
525 | case MFF_N_IDS: |
526 | default: | |
428b2edd | 527 | OVS_NOT_REACHED(); |
6a885fd0 BP |
528 | } |
529 | } | |
530 | ||
531 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
532 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
533 | void | |
534 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
535 | union mf_value *value) | |
536 | { | |
537 | switch (mf->id) { | |
a79f29f2 AZ |
538 | case MFF_DP_HASH: |
539 | value->be32 = htonl(flow->dp_hash); | |
540 | break; | |
541 | case MFF_RECIRC_ID: | |
542 | value->be32 = htonl(flow->recirc_id); | |
543 | break; | |
18080541 BP |
544 | case MFF_CONJ_ID: |
545 | value->be32 = htonl(flow->conj_id); | |
546 | break; | |
6a885fd0 | 547 | case MFF_TUN_ID: |
296e07ac | 548 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 549 | break; |
4fe3445a PS |
550 | case MFF_TUN_SRC: |
551 | value->be32 = flow->tunnel.ip_src; | |
552 | break; | |
553 | case MFF_TUN_DST: | |
554 | value->be32 = flow->tunnel.ip_dst; | |
555 | break; | |
7dad8e9a TLSC |
556 | case MFF_TUN_IPV6_SRC: |
557 | value->ipv6 = flow->tunnel.ipv6_src; | |
558 | break; | |
559 | case MFF_TUN_IPV6_DST: | |
560 | value->ipv6 = flow->tunnel.ipv6_dst; | |
561 | break; | |
4fe3445a | 562 | case MFF_TUN_FLAGS: |
b666962b | 563 | value->be16 = htons(flow->tunnel.flags & FLOW_TNL_PUB_F_MASK); |
4fe3445a | 564 | break; |
ac6073e3 MC |
565 | case MFF_TUN_GBP_ID: |
566 | value->be16 = flow->tunnel.gbp_id; | |
567 | break; | |
568 | case MFF_TUN_GBP_FLAGS: | |
569 | value->u8 = flow->tunnel.gbp_flags; | |
570 | break; | |
4fe3445a PS |
571 | case MFF_TUN_TTL: |
572 | value->u8 = flow->tunnel.ip_ttl; | |
573 | break; | |
574 | case MFF_TUN_TOS: | |
575 | value->u8 = flow->tunnel.ip_tos; | |
576 | break; | |
9558d2a5 | 577 | CASE_MFF_TUN_METADATA: |
6728d578 | 578 | tun_metadata_read(&flow->tunnel, mf, value); |
9558d2a5 | 579 | break; |
4fe3445a | 580 | |
969fc56c JS |
581 | case MFF_METADATA: |
582 | value->be64 = flow->metadata; | |
583 | break; | |
6a885fd0 BP |
584 | |
585 | case MFF_IN_PORT: | |
4e022ec0 | 586 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 587 | break; |
72333065 | 588 | case MFF_IN_PORT_OXM: |
4e022ec0 | 589 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 | 590 | break; |
c61f3870 BP |
591 | case MFF_ACTSET_OUTPUT: |
592 | value->be32 = ofputil_port_to_ofp11(flow->actset_output); | |
593 | break; | |
72333065 | 594 | |
1b567fb9 | 595 | case MFF_SKB_PRIORITY: |
a81f0a44 | 596 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
597 | break; |
598 | ||
1362e248 JG |
599 | case MFF_PKT_MARK: |
600 | value->be32 = htonl(flow->pkt_mark); | |
1b567fb9 AA |
601 | break; |
602 | ||
07659514 JS |
603 | case MFF_CT_STATE: |
604 | value->be32 = htonl(flow->ct_state); | |
605 | break; | |
606 | ||
607 | case MFF_CT_ZONE: | |
608 | value->be16 = htons(flow->ct_zone); | |
609 | break; | |
610 | ||
8e53fe8c JS |
611 | case MFF_CT_MARK: |
612 | value->be32 = htonl(flow->ct_mark); | |
613 | break; | |
614 | ||
9daf2348 | 615 | case MFF_CT_LABEL: |
32ea15f6 | 616 | value->be128 = hton128(flow->ct_label); |
9daf2348 JS |
617 | break; |
618 | ||
0d7e2fe4 | 619 | CASE_MFF_REGS: |
2f98b0b7 | 620 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
621 | break; |
622 | ||
79fe0f46 BP |
623 | CASE_MFF_XREGS: |
624 | value->be64 = htonll(flow_get_xreg(flow, mf->id - MFF_XREG0)); | |
625 | break; | |
626 | ||
b23ada8e JP |
627 | CASE_MFF_XXREGS: |
628 | value->be128 = hton128(flow_get_xxreg(flow, mf->id - MFF_XXREG0)); | |
629 | break; | |
630 | ||
6a885fd0 | 631 | case MFF_ETH_SRC: |
74ff3298 | 632 | value->mac = flow->dl_src; |
6a885fd0 BP |
633 | break; |
634 | ||
635 | case MFF_ETH_DST: | |
74ff3298 | 636 | value->mac = flow->dl_dst; |
6a885fd0 BP |
637 | break; |
638 | ||
639 | case MFF_ETH_TYPE: | |
640 | value->be16 = flow->dl_type; | |
641 | break; | |
642 | ||
643 | case MFF_VLAN_TCI: | |
644 | value->be16 = flow->vlan_tci; | |
645 | break; | |
646 | ||
441c57a9 | 647 | case MFF_DL_VLAN: |
6a885fd0 BP |
648 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK); |
649 | break; | |
cc34bc8c BP |
650 | case MFF_VLAN_VID: |
651 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI); | |
652 | break; | |
6a885fd0 | 653 | |
441c57a9 | 654 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 655 | case MFF_VLAN_PCP: |
6a885fd0 BP |
656 | value->u8 = vlan_tci_to_pcp(flow->vlan_tci); |
657 | break; | |
658 | ||
b02475c5 | 659 | case MFF_MPLS_LABEL: |
8bfd0fda | 660 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse[0])); |
b02475c5 SH |
661 | break; |
662 | ||
663 | case MFF_MPLS_TC: | |
8bfd0fda | 664 | value->u8 = mpls_lse_to_tc(flow->mpls_lse[0]); |
b02475c5 SH |
665 | break; |
666 | ||
667 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
668 | value->u8 = mpls_lse_to_bos(flow->mpls_lse[0]); |
669 | break; | |
b02475c5 | 670 | |
bef3f465 BP |
671 | case MFF_MPLS_TTL: |
672 | value->u8 = mpls_lse_to_ttl(flow->mpls_lse[0]); | |
673 | break; | |
674 | ||
6a885fd0 BP |
675 | case MFF_IPV4_SRC: |
676 | value->be32 = flow->nw_src; | |
677 | break; | |
678 | ||
679 | case MFF_IPV4_DST: | |
680 | value->be32 = flow->nw_dst; | |
681 | break; | |
682 | ||
683 | case MFF_IPV6_SRC: | |
684 | value->ipv6 = flow->ipv6_src; | |
685 | break; | |
686 | ||
687 | case MFF_IPV6_DST: | |
688 | value->ipv6 = flow->ipv6_dst; | |
689 | break; | |
690 | ||
fa8223b7 JP |
691 | case MFF_IPV6_LABEL: |
692 | value->be32 = flow->ipv6_label; | |
693 | break; | |
694 | ||
6a885fd0 BP |
695 | case MFF_IP_PROTO: |
696 | value->u8 = flow->nw_proto; | |
697 | break; | |
698 | ||
530180fd | 699 | case MFF_IP_DSCP: |
eadef313 | 700 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
701 | break; |
702 | ||
1638b906 BP |
703 | case MFF_IP_DSCP_SHIFTED: |
704 | value->u8 = flow->nw_tos >> 2; | |
705 | break; | |
706 | ||
530180fd | 707 | case MFF_IP_ECN: |
eadef313 | 708 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
709 | break; |
710 | ||
a61680c6 JP |
711 | case MFF_IP_TTL: |
712 | value->u8 = flow->nw_ttl; | |
713 | break; | |
714 | ||
7257b535 | 715 | case MFF_IP_FRAG: |
eadef313 | 716 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
717 | break; |
718 | ||
719 | case MFF_ARP_OP: | |
720 | value->be16 = htons(flow->nw_proto); | |
721 | break; | |
722 | ||
723 | case MFF_ARP_SPA: | |
724 | value->be32 = flow->nw_src; | |
725 | break; | |
726 | ||
727 | case MFF_ARP_TPA: | |
728 | value->be32 = flow->nw_dst; | |
729 | break; | |
730 | ||
731 | case MFF_ARP_SHA: | |
732 | case MFF_ND_SLL: | |
74ff3298 | 733 | value->mac = flow->arp_sha; |
6a885fd0 BP |
734 | break; |
735 | ||
736 | case MFF_ARP_THA: | |
737 | case MFF_ND_TLL: | |
74ff3298 | 738 | value->mac = flow->arp_tha; |
6a885fd0 BP |
739 | break; |
740 | ||
741 | case MFF_TCP_SRC: | |
6a885fd0 | 742 | case MFF_UDP_SRC: |
0d56eaf2 | 743 | case MFF_SCTP_SRC: |
6a885fd0 BP |
744 | value->be16 = flow->tp_src; |
745 | break; | |
746 | ||
71baec06 | 747 | case MFF_TCP_DST: |
6a885fd0 | 748 | case MFF_UDP_DST: |
0d56eaf2 | 749 | case MFF_SCTP_DST: |
6a885fd0 BP |
750 | value->be16 = flow->tp_dst; |
751 | break; | |
752 | ||
dc235f7f JR |
753 | case MFF_TCP_FLAGS: |
754 | value->be16 = flow->tcp_flags; | |
755 | break; | |
756 | ||
268a95e0 BP |
757 | case MFF_ICMPV4_TYPE: |
758 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
759 | value->u8 = ntohs(flow->tp_src); |
760 | break; | |
761 | ||
268a95e0 BP |
762 | case MFF_ICMPV4_CODE: |
763 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
764 | value->u8 = ntohs(flow->tp_dst); |
765 | break; | |
766 | ||
767 | case MFF_ND_TARGET: | |
768 | value->ipv6 = flow->nd_target; | |
769 | break; | |
770 | ||
771 | case MFF_N_IDS: | |
772 | default: | |
428b2edd | 773 | OVS_NOT_REACHED(); |
6a885fd0 BP |
774 | } |
775 | } | |
776 | ||
81a76618 BP |
777 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
778 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
4f7b100c JG |
779 | * prerequisites. |
780 | * | |
781 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
782 | * with the request or NULL if there is no error. The caller is reponsible | |
783 | * for freeing the string. */ | |
6a885fd0 BP |
784 | void |
785 | mf_set_value(const struct mf_field *mf, | |
4f7b100c | 786 | const union mf_value *value, struct match *match, char **err_str) |
6a885fd0 | 787 | { |
4f7b100c JG |
788 | if (err_str) { |
789 | *err_str = NULL; | |
790 | } | |
791 | ||
6a885fd0 | 792 | switch (mf->id) { |
a79f29f2 AZ |
793 | case MFF_DP_HASH: |
794 | match_set_dp_hash(match, ntohl(value->be32)); | |
795 | break; | |
796 | case MFF_RECIRC_ID: | |
797 | match_set_recirc_id(match, ntohl(value->be32)); | |
798 | break; | |
18080541 BP |
799 | case MFF_CONJ_ID: |
800 | match_set_conj_id(match, ntohl(value->be32)); | |
801 | break; | |
6a885fd0 | 802 | case MFF_TUN_ID: |
81a76618 | 803 | match_set_tun_id(match, value->be64); |
6a885fd0 | 804 | break; |
4fe3445a PS |
805 | case MFF_TUN_SRC: |
806 | match_set_tun_src(match, value->be32); | |
807 | break; | |
808 | case MFF_TUN_DST: | |
809 | match_set_tun_dst(match, value->be32); | |
810 | break; | |
7dad8e9a TLSC |
811 | case MFF_TUN_IPV6_SRC: |
812 | match_set_tun_ipv6_src(match, &value->ipv6); | |
813 | break; | |
814 | case MFF_TUN_IPV6_DST: | |
815 | match_set_tun_ipv6_dst(match, &value->ipv6); | |
816 | break; | |
4fe3445a PS |
817 | case MFF_TUN_FLAGS: |
818 | match_set_tun_flags(match, ntohs(value->be16)); | |
819 | break; | |
ac6073e3 MC |
820 | case MFF_TUN_GBP_ID: |
821 | match_set_tun_gbp_id(match, value->be16); | |
822 | break; | |
823 | case MFF_TUN_GBP_FLAGS: | |
824 | match_set_tun_gbp_flags(match, value->u8); | |
825 | break; | |
4fe3445a PS |
826 | case MFF_TUN_TOS: |
827 | match_set_tun_tos(match, value->u8); | |
828 | break; | |
829 | case MFF_TUN_TTL: | |
830 | match_set_tun_ttl(match, value->u8); | |
831 | break; | |
9558d2a5 | 832 | CASE_MFF_TUN_METADATA: |
4f7b100c | 833 | tun_metadata_set_match(mf, value, NULL, match, err_str); |
9558d2a5 | 834 | break; |
4fe3445a | 835 | |
969fc56c | 836 | case MFF_METADATA: |
81a76618 | 837 | match_set_metadata(match, value->be64); |
969fc56c | 838 | break; |
6a885fd0 BP |
839 | |
840 | case MFF_IN_PORT: | |
4e022ec0 | 841 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
842 | break; |
843 | ||
72333065 | 844 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 845 | ofp_port_t port; |
bc146369 | 846 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
847 | match_set_in_port(match, port); |
848 | break; | |
849 | } | |
c61f3870 BP |
850 | case MFF_ACTSET_OUTPUT: { |
851 | ofp_port_t port; | |
852 | ofputil_port_from_ofp11(value->be32, &port); | |
853 | match_set_actset_output(match, port); | |
854 | break; | |
855 | } | |
72333065 | 856 | |
1b567fb9 AA |
857 | case MFF_SKB_PRIORITY: |
858 | match_set_skb_priority(match, ntohl(value->be32)); | |
859 | break; | |
860 | ||
1362e248 JG |
861 | case MFF_PKT_MARK: |
862 | match_set_pkt_mark(match, ntohl(value->be32)); | |
1b567fb9 AA |
863 | break; |
864 | ||
07659514 JS |
865 | case MFF_CT_STATE: |
866 | match_set_ct_state(match, ntohl(value->be32)); | |
867 | break; | |
868 | ||
869 | case MFF_CT_ZONE: | |
870 | match_set_ct_zone(match, ntohs(value->be16)); | |
871 | break; | |
872 | ||
8e53fe8c JS |
873 | case MFF_CT_MARK: |
874 | match_set_ct_mark(match, ntohl(value->be32)); | |
875 | break; | |
876 | ||
32ea15f6 JP |
877 | case MFF_CT_LABEL: |
878 | match_set_ct_label(match, ntoh128(value->be128)); | |
9daf2348 | 879 | break; |
9daf2348 | 880 | |
0d7e2fe4 | 881 | CASE_MFF_REGS: |
81a76618 | 882 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 883 | break; |
6a885fd0 | 884 | |
79fe0f46 BP |
885 | CASE_MFF_XREGS: |
886 | match_set_xreg(match, mf->id - MFF_XREG0, ntohll(value->be64)); | |
887 | break; | |
888 | ||
b23ada8e JP |
889 | CASE_MFF_XXREGS: |
890 | match_set_xxreg(match, mf->id - MFF_XXREG0, ntoh128(value->be128)); | |
891 | break; | |
892 | ||
6a885fd0 | 893 | case MFF_ETH_SRC: |
81a76618 | 894 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
895 | break; |
896 | ||
897 | case MFF_ETH_DST: | |
81a76618 | 898 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
899 | break; |
900 | ||
901 | case MFF_ETH_TYPE: | |
81a76618 | 902 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
903 | break; |
904 | ||
905 | case MFF_VLAN_TCI: | |
81a76618 | 906 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
907 | break; |
908 | ||
441c57a9 | 909 | case MFF_DL_VLAN: |
81a76618 | 910 | match_set_dl_vlan(match, value->be16); |
6a885fd0 | 911 | break; |
cc34bc8c | 912 | case MFF_VLAN_VID: |
81a76618 | 913 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 914 | break; |
6a885fd0 | 915 | |
441c57a9 | 916 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 917 | case MFF_VLAN_PCP: |
81a76618 | 918 | match_set_dl_vlan_pcp(match, value->u8); |
6a885fd0 BP |
919 | break; |
920 | ||
b02475c5 | 921 | case MFF_MPLS_LABEL: |
8bfd0fda | 922 | match_set_mpls_label(match, 0, value->be32); |
b02475c5 SH |
923 | break; |
924 | ||
925 | case MFF_MPLS_TC: | |
8bfd0fda | 926 | match_set_mpls_tc(match, 0, value->u8); |
b02475c5 SH |
927 | break; |
928 | ||
929 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
930 | match_set_mpls_bos(match, 0, value->u8); |
931 | break; | |
b02475c5 | 932 | |
bef3f465 BP |
933 | case MFF_MPLS_TTL: |
934 | match_set_mpls_ttl(match, 0, value->u8); | |
935 | break; | |
936 | ||
6a885fd0 | 937 | case MFF_IPV4_SRC: |
81a76618 | 938 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
939 | break; |
940 | ||
941 | case MFF_IPV4_DST: | |
81a76618 | 942 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
943 | break; |
944 | ||
945 | case MFF_IPV6_SRC: | |
81a76618 | 946 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
947 | break; |
948 | ||
949 | case MFF_IPV6_DST: | |
81a76618 | 950 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
951 | break; |
952 | ||
fa8223b7 | 953 | case MFF_IPV6_LABEL: |
81a76618 | 954 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
955 | break; |
956 | ||
6a885fd0 | 957 | case MFF_IP_PROTO: |
81a76618 | 958 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
959 | break; |
960 | ||
530180fd | 961 | case MFF_IP_DSCP: |
81a76618 | 962 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
963 | break; |
964 | ||
1638b906 BP |
965 | case MFF_IP_DSCP_SHIFTED: |
966 | match_set_nw_dscp(match, value->u8 << 2); | |
967 | break; | |
968 | ||
530180fd | 969 | case MFF_IP_ECN: |
81a76618 | 970 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
971 | break; |
972 | ||
a61680c6 | 973 | case MFF_IP_TTL: |
81a76618 | 974 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
975 | break; |
976 | ||
7257b535 | 977 | case MFF_IP_FRAG: |
81a76618 | 978 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
979 | break; |
980 | ||
6a885fd0 | 981 | case MFF_ARP_OP: |
81a76618 | 982 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
983 | break; |
984 | ||
985 | case MFF_ARP_SPA: | |
81a76618 | 986 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
987 | break; |
988 | ||
989 | case MFF_ARP_TPA: | |
81a76618 | 990 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
991 | break; |
992 | ||
993 | case MFF_ARP_SHA: | |
994 | case MFF_ND_SLL: | |
81a76618 | 995 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
996 | break; |
997 | ||
998 | case MFF_ARP_THA: | |
999 | case MFF_ND_TLL: | |
81a76618 | 1000 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1001 | break; |
1002 | ||
1003 | case MFF_TCP_SRC: | |
6a885fd0 | 1004 | case MFF_UDP_SRC: |
0d56eaf2 | 1005 | case MFF_SCTP_SRC: |
81a76618 | 1006 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1007 | break; |
1008 | ||
71baec06 | 1009 | case MFF_TCP_DST: |
6a885fd0 | 1010 | case MFF_UDP_DST: |
0d56eaf2 | 1011 | case MFF_SCTP_DST: |
81a76618 | 1012 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1013 | break; |
1014 | ||
dc235f7f JR |
1015 | case MFF_TCP_FLAGS: |
1016 | match_set_tcp_flags(match, value->be16); | |
1017 | break; | |
1018 | ||
268a95e0 BP |
1019 | case MFF_ICMPV4_TYPE: |
1020 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1021 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1022 | break; |
1023 | ||
268a95e0 BP |
1024 | case MFF_ICMPV4_CODE: |
1025 | case MFF_ICMPV6_CODE: | |
81a76618 | 1026 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1027 | break; |
1028 | ||
1029 | case MFF_ND_TARGET: | |
81a76618 | 1030 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1031 | break; |
1032 | ||
1033 | case MFF_N_IDS: | |
1034 | default: | |
428b2edd | 1035 | OVS_NOT_REACHED(); |
6a885fd0 BP |
1036 | } |
1037 | } | |
1038 | ||
5cd4ead5 JR |
1039 | /* Unwildcard the bits in 'mask' of the 'wc' member field described by 'mf'. |
1040 | * The caller is responsible for ensuring that 'wc' meets 'mf''s | |
1041 | * prerequisites. */ | |
5a0a5702 | 1042 | void |
5cd4ead5 JR |
1043 | mf_mask_field_masked(const struct mf_field *mf, const union mf_value *mask, |
1044 | struct flow_wildcards *wc) | |
5a0a5702 | 1045 | { |
5cd4ead5 JR |
1046 | union mf_value temp_mask; |
1047 | /* For MFF_DL_VLAN, we cannot send a all 1's to flow_set_dl_vlan() as that | |
1048 | * will be considered as OFP10_VLAN_NONE. So make sure the mask only has | |
1049 | * valid bits in this case. */ | |
5a0a5702 | 1050 | if (mf->id == MFF_DL_VLAN) { |
5cd4ead5 JR |
1051 | temp_mask.be16 = htons(VLAN_VID_MASK) & mask->be16; |
1052 | mask = &temp_mask; | |
5a0a5702 | 1053 | } |
5cd4ead5 JR |
1054 | |
1055 | union mf_value mask_value; | |
1056 | ||
1057 | mf_get_value(mf, &wc->masks, &mask_value); | |
1058 | for (size_t i = 0; i < mf->n_bytes; i++) { | |
1059 | mask_value.b[i] |= mask->b[i]; | |
1060 | } | |
1061 | mf_set_flow_value(mf, &mask_value, &wc->masks); | |
1062 | } | |
1063 | ||
1064 | /* Unwildcard 'wc' member field described by 'mf'. The caller is | |
1065 | * responsible for ensuring that 'mask' meets 'mf''s prerequisites. */ | |
1066 | void | |
1067 | mf_mask_field(const struct mf_field *mf, struct flow_wildcards *wc) | |
1068 | { | |
1069 | mf_mask_field_masked(mf, &exact_match_mask, wc); | |
5a0a5702 GS |
1070 | } |
1071 | ||
4ede8c79 JG |
1072 | static int |
1073 | field_len(const struct mf_field *mf, const union mf_value *value_) | |
1074 | { | |
1075 | const uint8_t *value = &value_->u8; | |
1076 | int i; | |
1077 | ||
1078 | if (!mf->variable_len) { | |
1079 | return mf->n_bytes; | |
1080 | } | |
1081 | ||
1082 | if (!value) { | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | for (i = 0; i < mf->n_bytes; i++) { | |
1087 | if (value[i] != 0) { | |
1088 | break; | |
1089 | } | |
1090 | } | |
1091 | ||
1092 | return mf->n_bytes - i; | |
1093 | } | |
1094 | ||
1095 | /* Returns the effective length of the field. For fixed length fields, | |
1096 | * this is just the defined length. For variable length fields, it is | |
1097 | * the minimum size encoding that retains the same meaning (i.e. | |
1cb20095 JG |
1098 | * discarding leading zeros). |
1099 | * | |
1100 | * 'is_masked' returns (if non-NULL) whether the original contained | |
1101 | * a mask. Otherwise, a mask that is the same length as the value | |
1102 | * might be misinterpreted as an exact match. */ | |
4ede8c79 JG |
1103 | int |
1104 | mf_field_len(const struct mf_field *mf, const union mf_value *value, | |
1cb20095 | 1105 | const union mf_value *mask, bool *is_masked_) |
4ede8c79 JG |
1106 | { |
1107 | int len, mask_len; | |
1cb20095 | 1108 | bool is_masked = mask && !is_all_ones(mask, mf->n_bytes); |
4ede8c79 JG |
1109 | |
1110 | len = field_len(mf, value); | |
1cb20095 | 1111 | if (is_masked) { |
4ede8c79 JG |
1112 | mask_len = field_len(mf, mask); |
1113 | len = MAX(len, mask_len); | |
1114 | } | |
1115 | ||
1cb20095 JG |
1116 | if (is_masked_) { |
1117 | *is_masked_ = is_masked; | |
1118 | } | |
1119 | ||
4ede8c79 JG |
1120 | return len; |
1121 | } | |
1122 | ||
910fb1d8 JP |
1123 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1124 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1125 | void |
1126 | mf_set_flow_value(const struct mf_field *mf, | |
1127 | const union mf_value *value, struct flow *flow) | |
1128 | { | |
1129 | switch (mf->id) { | |
a79f29f2 AZ |
1130 | case MFF_DP_HASH: |
1131 | flow->dp_hash = ntohl(value->be32); | |
1132 | break; | |
1133 | case MFF_RECIRC_ID: | |
1134 | flow->recirc_id = ntohl(value->be32); | |
1135 | break; | |
18080541 BP |
1136 | case MFF_CONJ_ID: |
1137 | flow->conj_id = ntohl(value->be32); | |
1138 | break; | |
28da1f8f | 1139 | case MFF_TUN_ID: |
296e07ac | 1140 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1141 | break; |
4fe3445a PS |
1142 | case MFF_TUN_SRC: |
1143 | flow->tunnel.ip_src = value->be32; | |
1144 | break; | |
1145 | case MFF_TUN_DST: | |
1146 | flow->tunnel.ip_dst = value->be32; | |
1147 | break; | |
7dad8e9a TLSC |
1148 | case MFF_TUN_IPV6_SRC: |
1149 | flow->tunnel.ipv6_src = value->ipv6; | |
1150 | break; | |
1151 | case MFF_TUN_IPV6_DST: | |
1152 | flow->tunnel.ipv6_dst = value->ipv6; | |
1153 | break; | |
4fe3445a | 1154 | case MFF_TUN_FLAGS: |
b666962b JG |
1155 | flow->tunnel.flags = (flow->tunnel.flags & ~FLOW_TNL_PUB_F_MASK) | |
1156 | ntohs(value->be16); | |
4fe3445a | 1157 | break; |
ac6073e3 MC |
1158 | case MFF_TUN_GBP_ID: |
1159 | flow->tunnel.gbp_id = value->be16; | |
1160 | break; | |
1161 | case MFF_TUN_GBP_FLAGS: | |
1162 | flow->tunnel.gbp_flags = value->u8; | |
1163 | break; | |
4fe3445a PS |
1164 | case MFF_TUN_TOS: |
1165 | flow->tunnel.ip_tos = value->u8; | |
1166 | break; | |
1167 | case MFF_TUN_TTL: | |
1168 | flow->tunnel.ip_ttl = value->u8; | |
1169 | break; | |
9558d2a5 | 1170 | CASE_MFF_TUN_METADATA: |
6728d578 | 1171 | tun_metadata_write(&flow->tunnel, mf, value); |
1aaf0ada | 1172 | break; |
969fc56c JS |
1173 | case MFF_METADATA: |
1174 | flow->metadata = value->be64; | |
1175 | break; | |
28da1f8f BP |
1176 | |
1177 | case MFF_IN_PORT: | |
4e022ec0 | 1178 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f BP |
1179 | break; |
1180 | ||
c61f3870 BP |
1181 | case MFF_IN_PORT_OXM: |
1182 | ofputil_port_from_ofp11(value->be32, &flow->in_port.ofp_port); | |
1183 | break; | |
1184 | case MFF_ACTSET_OUTPUT: | |
1185 | ofputil_port_from_ofp11(value->be32, &flow->actset_output); | |
72333065 | 1186 | break; |
72333065 | 1187 | |
1b567fb9 AA |
1188 | case MFF_SKB_PRIORITY: |
1189 | flow->skb_priority = ntohl(value->be32); | |
1190 | break; | |
1191 | ||
1362e248 JG |
1192 | case MFF_PKT_MARK: |
1193 | flow->pkt_mark = ntohl(value->be32); | |
1b567fb9 AA |
1194 | break; |
1195 | ||
07659514 JS |
1196 | case MFF_CT_STATE: |
1197 | flow->ct_state = ntohl(value->be32); | |
1198 | break; | |
1199 | ||
1200 | case MFF_CT_ZONE: | |
1201 | flow->ct_zone = ntohs(value->be16); | |
1202 | break; | |
1203 | ||
8e53fe8c JS |
1204 | case MFF_CT_MARK: |
1205 | flow->ct_mark = ntohl(value->be32); | |
1206 | break; | |
1207 | ||
9daf2348 | 1208 | case MFF_CT_LABEL: |
32ea15f6 | 1209 | flow->ct_label = ntoh128(value->be128); |
9daf2348 JS |
1210 | break; |
1211 | ||
0d7e2fe4 | 1212 | CASE_MFF_REGS: |
28da1f8f BP |
1213 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1214 | break; | |
28da1f8f | 1215 | |
79fe0f46 BP |
1216 | CASE_MFF_XREGS: |
1217 | flow_set_xreg(flow, mf->id - MFF_XREG0, ntohll(value->be64)); | |
1218 | break; | |
1219 | ||
b23ada8e JP |
1220 | CASE_MFF_XXREGS: |
1221 | flow_set_xxreg(flow, mf->id - MFF_XXREG0, ntoh128(value->be128)); | |
1222 | break; | |
1223 | ||
28da1f8f | 1224 | case MFF_ETH_SRC: |
74ff3298 | 1225 | flow->dl_src = value->mac; |
28da1f8f BP |
1226 | break; |
1227 | ||
1228 | case MFF_ETH_DST: | |
74ff3298 | 1229 | flow->dl_dst = value->mac; |
28da1f8f BP |
1230 | break; |
1231 | ||
1232 | case MFF_ETH_TYPE: | |
1233 | flow->dl_type = value->be16; | |
1234 | break; | |
1235 | ||
1236 | case MFF_VLAN_TCI: | |
1237 | flow->vlan_tci = value->be16; | |
1238 | break; | |
1239 | ||
441c57a9 | 1240 | case MFF_DL_VLAN: |
fb0451d9 | 1241 | flow_set_dl_vlan(flow, value->be16); |
28da1f8f | 1242 | break; |
cc34bc8c BP |
1243 | case MFF_VLAN_VID: |
1244 | flow_set_vlan_vid(flow, value->be16); | |
1245 | break; | |
28da1f8f | 1246 | |
441c57a9 | 1247 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1248 | case MFF_VLAN_PCP: |
28da1f8f BP |
1249 | flow_set_vlan_pcp(flow, value->u8); |
1250 | break; | |
1251 | ||
b02475c5 | 1252 | case MFF_MPLS_LABEL: |
8bfd0fda | 1253 | flow_set_mpls_label(flow, 0, value->be32); |
b02475c5 SH |
1254 | break; |
1255 | ||
1256 | case MFF_MPLS_TC: | |
8bfd0fda | 1257 | flow_set_mpls_tc(flow, 0, value->u8); |
b02475c5 SH |
1258 | break; |
1259 | ||
1260 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1261 | flow_set_mpls_bos(flow, 0, value->u8); |
1262 | break; | |
b02475c5 | 1263 | |
bef3f465 BP |
1264 | case MFF_MPLS_TTL: |
1265 | flow_set_mpls_ttl(flow, 0, value->u8); | |
1266 | break; | |
1267 | ||
28da1f8f BP |
1268 | case MFF_IPV4_SRC: |
1269 | flow->nw_src = value->be32; | |
1270 | break; | |
1271 | ||
1272 | case MFF_IPV4_DST: | |
1273 | flow->nw_dst = value->be32; | |
1274 | break; | |
1275 | ||
1276 | case MFF_IPV6_SRC: | |
1277 | flow->ipv6_src = value->ipv6; | |
1278 | break; | |
1279 | ||
1280 | case MFF_IPV6_DST: | |
1281 | flow->ipv6_dst = value->ipv6; | |
1282 | break; | |
1283 | ||
1284 | case MFF_IPV6_LABEL: | |
88cc95c1 | 1285 | flow->ipv6_label = value->be32 & htonl(IPV6_LABEL_MASK); |
28da1f8f BP |
1286 | break; |
1287 | ||
1288 | case MFF_IP_PROTO: | |
1289 | flow->nw_proto = value->u8; | |
1290 | break; | |
1291 | ||
1292 | case MFF_IP_DSCP: | |
1293 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1294 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1295 | break; | |
1296 | ||
1638b906 BP |
1297 | case MFF_IP_DSCP_SHIFTED: |
1298 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1299 | flow->nw_tos |= value->u8 << 2; | |
1300 | break; | |
1301 | ||
28da1f8f BP |
1302 | case MFF_IP_ECN: |
1303 | flow->nw_tos &= ~IP_ECN_MASK; | |
1304 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1305 | break; | |
1306 | ||
1307 | case MFF_IP_TTL: | |
1308 | flow->nw_ttl = value->u8; | |
1309 | break; | |
1310 | ||
1311 | case MFF_IP_FRAG: | |
c8abb8af | 1312 | flow->nw_frag = value->u8 & FLOW_NW_FRAG_MASK; |
28da1f8f BP |
1313 | break; |
1314 | ||
1315 | case MFF_ARP_OP: | |
1316 | flow->nw_proto = ntohs(value->be16); | |
1317 | break; | |
1318 | ||
1319 | case MFF_ARP_SPA: | |
1320 | flow->nw_src = value->be32; | |
1321 | break; | |
1322 | ||
1323 | case MFF_ARP_TPA: | |
1324 | flow->nw_dst = value->be32; | |
1325 | break; | |
1326 | ||
1327 | case MFF_ARP_SHA: | |
1328 | case MFF_ND_SLL: | |
74ff3298 | 1329 | flow->arp_sha = value->mac; |
28da1f8f BP |
1330 | break; |
1331 | ||
1332 | case MFF_ARP_THA: | |
1333 | case MFF_ND_TLL: | |
74ff3298 | 1334 | flow->arp_tha = value->mac; |
28da1f8f BP |
1335 | break; |
1336 | ||
1337 | case MFF_TCP_SRC: | |
1338 | case MFF_UDP_SRC: | |
0d56eaf2 | 1339 | case MFF_SCTP_SRC: |
28da1f8f BP |
1340 | flow->tp_src = value->be16; |
1341 | break; | |
1342 | ||
1343 | case MFF_TCP_DST: | |
1344 | case MFF_UDP_DST: | |
0d56eaf2 | 1345 | case MFF_SCTP_DST: |
28da1f8f BP |
1346 | flow->tp_dst = value->be16; |
1347 | break; | |
1348 | ||
dc235f7f JR |
1349 | case MFF_TCP_FLAGS: |
1350 | flow->tcp_flags = value->be16; | |
1351 | break; | |
1352 | ||
28da1f8f BP |
1353 | case MFF_ICMPV4_TYPE: |
1354 | case MFF_ICMPV6_TYPE: | |
1355 | flow->tp_src = htons(value->u8); | |
1356 | break; | |
1357 | ||
1358 | case MFF_ICMPV4_CODE: | |
1359 | case MFF_ICMPV6_CODE: | |
1360 | flow->tp_dst = htons(value->u8); | |
1361 | break; | |
1362 | ||
1363 | case MFF_ND_TARGET: | |
1364 | flow->nd_target = value->ipv6; | |
1365 | break; | |
1366 | ||
1367 | case MFF_N_IDS: | |
1368 | default: | |
428b2edd | 1369 | OVS_NOT_REACHED(); |
28da1f8f BP |
1370 | } |
1371 | } | |
1372 | ||
7eb4b1f1 BP |
1373 | /* Consider each of 'src', 'mask', and 'dst' as if they were arrays of 8*n |
1374 | * bits. Then, for each 0 <= i < 8 * n such that mask[i] == 1, sets dst[i] = | |
1375 | * src[i]. */ | |
1376 | static void | |
1377 | apply_mask(const uint8_t *src, const uint8_t *mask, uint8_t *dst, size_t n) | |
1378 | { | |
1379 | size_t i; | |
1380 | ||
1381 | for (i = 0; i < n; i++) { | |
1382 | dst[i] = (src[i] & mask[i]) | (dst[i] & ~mask[i]); | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | /* Sets 'flow' member field described by 'field' to 'value', except that bits | |
1387 | * for which 'mask' has a 0-bit keep their existing values. The caller is | |
1388 | * responsible for ensuring that 'flow' meets 'field''s prerequisites.*/ | |
1389 | void | |
1390 | mf_set_flow_value_masked(const struct mf_field *field, | |
1391 | const union mf_value *value, | |
1392 | const union mf_value *mask, | |
1393 | struct flow *flow) | |
1394 | { | |
1395 | union mf_value tmp; | |
1396 | ||
1397 | mf_get_value(field, flow, &tmp); | |
1398 | apply_mask((const uint8_t *) value, (const uint8_t *) mask, | |
1399 | (uint8_t *) &tmp, field->n_bytes); | |
1400 | mf_set_flow_value(field, &tmp, flow); | |
1401 | } | |
1402 | ||
1cb20095 JG |
1403 | bool |
1404 | mf_is_tun_metadata(const struct mf_field *mf) | |
1405 | { | |
1406 | return mf->id >= MFF_TUN_METADATA0 && | |
1407 | mf->id < MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS; | |
1408 | } | |
1409 | ||
1410 | /* Returns true if 'mf' has previously been set in 'flow', false if | |
1411 | * it contains a non-default value. | |
ccbe50f8 BP |
1412 | * |
1413 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1414 | * prerequisites. */ | |
1415 | bool | |
1cb20095 | 1416 | mf_is_set(const struct mf_field *mf, const struct flow *flow) |
ccbe50f8 | 1417 | { |
1cb20095 JG |
1418 | if (!mf_is_tun_metadata(mf)) { |
1419 | union mf_value value; | |
ccbe50f8 | 1420 | |
1cb20095 JG |
1421 | mf_get_value(mf, flow, &value); |
1422 | return !is_all_zeros(&value, mf->n_bytes); | |
1423 | } else { | |
1424 | return ULLONG_GET(flow->tunnel.metadata.present.map, | |
1425 | mf->id - MFF_TUN_METADATA0); | |
1426 | } | |
ccbe50f8 BP |
1427 | } |
1428 | ||
81a76618 | 1429 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1430 | * |
81a76618 | 1431 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
4f7b100c JG |
1432 | * prerequisites. |
1433 | * | |
1434 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
1435 | * with the request or NULL if there is no error. The caller is reponsible | |
1436 | * for freeing the string. */ | |
6a885fd0 | 1437 | void |
4f7b100c | 1438 | mf_set_wild(const struct mf_field *mf, struct match *match, char **err_str) |
6a885fd0 | 1439 | { |
4f7b100c JG |
1440 | if (err_str) { |
1441 | *err_str = NULL; | |
1442 | } | |
1443 | ||
6a885fd0 | 1444 | switch (mf->id) { |
a79f29f2 AZ |
1445 | case MFF_DP_HASH: |
1446 | match->flow.dp_hash = 0; | |
1447 | match->wc.masks.dp_hash = 0; | |
1448 | break; | |
1449 | case MFF_RECIRC_ID: | |
1450 | match->flow.recirc_id = 0; | |
1451 | match->wc.masks.recirc_id = 0; | |
1452 | break; | |
18080541 BP |
1453 | case MFF_CONJ_ID: |
1454 | match->flow.conj_id = 0; | |
1455 | match->wc.masks.conj_id = 0; | |
1456 | break; | |
6a885fd0 | 1457 | case MFF_TUN_ID: |
81a76618 | 1458 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1459 | break; |
4fe3445a PS |
1460 | case MFF_TUN_SRC: |
1461 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1462 | break; | |
1463 | case MFF_TUN_DST: | |
1464 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1465 | break; | |
7dad8e9a TLSC |
1466 | case MFF_TUN_IPV6_SRC: |
1467 | memset(&match->wc.masks.tunnel.ipv6_src, 0, | |
1468 | sizeof match->wc.masks.tunnel.ipv6_src); | |
1469 | memset(&match->flow.tunnel.ipv6_src, 0, | |
1470 | sizeof match->flow.tunnel.ipv6_src); | |
1471 | break; | |
1472 | case MFF_TUN_IPV6_DST: | |
1473 | memset(&match->wc.masks.tunnel.ipv6_dst, 0, | |
1474 | sizeof match->wc.masks.tunnel.ipv6_dst); | |
1475 | memset(&match->flow.tunnel.ipv6_dst, 0, | |
1476 | sizeof match->flow.tunnel.ipv6_dst); | |
1477 | break; | |
4fe3445a PS |
1478 | case MFF_TUN_FLAGS: |
1479 | match_set_tun_flags_masked(match, 0, 0); | |
1480 | break; | |
ac6073e3 MC |
1481 | case MFF_TUN_GBP_ID: |
1482 | match_set_tun_gbp_id_masked(match, 0, 0); | |
1483 | break; | |
1484 | case MFF_TUN_GBP_FLAGS: | |
1485 | match_set_tun_gbp_flags_masked(match, 0, 0); | |
1486 | break; | |
4fe3445a PS |
1487 | case MFF_TUN_TOS: |
1488 | match_set_tun_tos_masked(match, 0, 0); | |
1489 | break; | |
1490 | case MFF_TUN_TTL: | |
1491 | match_set_tun_ttl_masked(match, 0, 0); | |
1492 | break; | |
9558d2a5 | 1493 | CASE_MFF_TUN_METADATA: |
4f7b100c | 1494 | tun_metadata_set_match(mf, NULL, NULL, match, err_str); |
9558d2a5 | 1495 | break; |
4fe3445a | 1496 | |
969fc56c | 1497 | case MFF_METADATA: |
81a76618 | 1498 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 1499 | break; |
6a885fd0 BP |
1500 | |
1501 | case MFF_IN_PORT: | |
72333065 | 1502 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
1503 | match->flow.in_port.ofp_port = 0; |
1504 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 | 1505 | break; |
c61f3870 BP |
1506 | case MFF_ACTSET_OUTPUT: |
1507 | match->flow.actset_output = 0; | |
1508 | match->wc.masks.actset_output = 0; | |
1509 | break; | |
6a885fd0 | 1510 | |
1b567fb9 AA |
1511 | case MFF_SKB_PRIORITY: |
1512 | match->flow.skb_priority = 0; | |
1513 | match->wc.masks.skb_priority = 0; | |
1514 | break; | |
1515 | ||
1362e248 JG |
1516 | case MFF_PKT_MARK: |
1517 | match->flow.pkt_mark = 0; | |
1518 | match->wc.masks.pkt_mark = 0; | |
1b567fb9 AA |
1519 | break; |
1520 | ||
07659514 JS |
1521 | case MFF_CT_STATE: |
1522 | match->flow.ct_state = 0; | |
1523 | match->wc.masks.ct_state = 0; | |
1524 | break; | |
1525 | ||
1526 | case MFF_CT_ZONE: | |
1527 | match->flow.ct_zone = 0; | |
1528 | match->wc.masks.ct_zone = 0; | |
1529 | break; | |
1530 | ||
8e53fe8c JS |
1531 | case MFF_CT_MARK: |
1532 | match->flow.ct_mark = 0; | |
1533 | match->wc.masks.ct_mark = 0; | |
1534 | break; | |
1535 | ||
9daf2348 JS |
1536 | case MFF_CT_LABEL: |
1537 | memset(&match->flow.ct_label, 0, sizeof(match->flow.ct_label)); | |
1538 | memset(&match->wc.masks.ct_label, 0, sizeof(match->wc.masks.ct_label)); | |
1539 | break; | |
1540 | ||
0d7e2fe4 | 1541 | CASE_MFF_REGS: |
81a76618 | 1542 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 1543 | break; |
6a885fd0 | 1544 | |
79fe0f46 BP |
1545 | CASE_MFF_XREGS: |
1546 | match_set_xreg_masked(match, mf->id - MFF_XREG0, 0, 0); | |
1547 | break; | |
1548 | ||
b23ada8e JP |
1549 | CASE_MFF_XXREGS: { |
1550 | match_set_xxreg_masked(match, mf->id - MFF_XXREG0, OVS_U128_ZERO, | |
1551 | OVS_U128_ZERO); | |
1552 | break; | |
1553 | } | |
1554 | ||
6a885fd0 | 1555 | case MFF_ETH_SRC: |
74ff3298 JR |
1556 | match->flow.dl_src = eth_addr_zero; |
1557 | match->wc.masks.dl_src = eth_addr_zero; | |
6a885fd0 BP |
1558 | break; |
1559 | ||
1560 | case MFF_ETH_DST: | |
74ff3298 JR |
1561 | match->flow.dl_dst = eth_addr_zero; |
1562 | match->wc.masks.dl_dst = eth_addr_zero; | |
6a885fd0 BP |
1563 | break; |
1564 | ||
1565 | case MFF_ETH_TYPE: | |
81a76618 BP |
1566 | match->flow.dl_type = htons(0); |
1567 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
1568 | break; |
1569 | ||
1570 | case MFF_VLAN_TCI: | |
81a76618 | 1571 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
1572 | break; |
1573 | ||
441c57a9 | 1574 | case MFF_DL_VLAN: |
cc34bc8c | 1575 | case MFF_VLAN_VID: |
81a76618 | 1576 | match_set_any_vid(match); |
6a885fd0 BP |
1577 | break; |
1578 | ||
441c57a9 | 1579 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1580 | case MFF_VLAN_PCP: |
81a76618 | 1581 | match_set_any_pcp(match); |
6a885fd0 BP |
1582 | break; |
1583 | ||
b02475c5 | 1584 | case MFF_MPLS_LABEL: |
8bfd0fda | 1585 | match_set_any_mpls_label(match, 0); |
b02475c5 SH |
1586 | break; |
1587 | ||
1588 | case MFF_MPLS_TC: | |
8bfd0fda | 1589 | match_set_any_mpls_tc(match, 0); |
b02475c5 SH |
1590 | break; |
1591 | ||
1592 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1593 | match_set_any_mpls_bos(match, 0); |
1594 | break; | |
b02475c5 | 1595 | |
bef3f465 BP |
1596 | case MFF_MPLS_TTL: |
1597 | match_set_any_mpls_ttl(match, 0); | |
1598 | break; | |
1599 | ||
6a885fd0 BP |
1600 | case MFF_IPV4_SRC: |
1601 | case MFF_ARP_SPA: | |
81a76618 | 1602 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1603 | break; |
1604 | ||
1605 | case MFF_IPV4_DST: | |
1606 | case MFF_ARP_TPA: | |
81a76618 | 1607 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1608 | break; |
1609 | ||
1610 | case MFF_IPV6_SRC: | |
81a76618 BP |
1611 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
1612 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
1613 | break; |
1614 | ||
1615 | case MFF_IPV6_DST: | |
81a76618 BP |
1616 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
1617 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
1618 | break; |
1619 | ||
fa8223b7 | 1620 | case MFF_IPV6_LABEL: |
81a76618 BP |
1621 | match->wc.masks.ipv6_label = htonl(0); |
1622 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
1623 | break; |
1624 | ||
6a885fd0 | 1625 | case MFF_IP_PROTO: |
81a76618 BP |
1626 | match->wc.masks.nw_proto = 0; |
1627 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1628 | break; |
1629 | ||
530180fd | 1630 | case MFF_IP_DSCP: |
1638b906 | 1631 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
1632 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
1633 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
1634 | break; |
1635 | ||
530180fd | 1636 | case MFF_IP_ECN: |
81a76618 BP |
1637 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
1638 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
1639 | break; |
1640 | ||
a61680c6 | 1641 | case MFF_IP_TTL: |
81a76618 BP |
1642 | match->wc.masks.nw_ttl = 0; |
1643 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
1644 | break; |
1645 | ||
7257b535 | 1646 | case MFF_IP_FRAG: |
6ca49d5e | 1647 | match->wc.masks.nw_frag &= ~FLOW_NW_FRAG_MASK; |
81a76618 | 1648 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; |
6a885fd0 BP |
1649 | break; |
1650 | ||
1651 | case MFF_ARP_OP: | |
81a76618 BP |
1652 | match->wc.masks.nw_proto = 0; |
1653 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1654 | break; |
1655 | ||
1656 | case MFF_ARP_SHA: | |
1657 | case MFF_ND_SLL: | |
74ff3298 JR |
1658 | match->flow.arp_sha = eth_addr_zero; |
1659 | match->wc.masks.arp_sha = eth_addr_zero; | |
6a885fd0 BP |
1660 | break; |
1661 | ||
1662 | case MFF_ARP_THA: | |
1663 | case MFF_ND_TLL: | |
74ff3298 JR |
1664 | match->flow.arp_tha = eth_addr_zero; |
1665 | match->wc.masks.arp_tha = eth_addr_zero; | |
6a885fd0 BP |
1666 | break; |
1667 | ||
1668 | case MFF_TCP_SRC: | |
1669 | case MFF_UDP_SRC: | |
0d56eaf2 | 1670 | case MFF_SCTP_SRC: |
268a95e0 BP |
1671 | case MFF_ICMPV4_TYPE: |
1672 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
1673 | match->wc.masks.tp_src = htons(0); |
1674 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
1675 | break; |
1676 | ||
1677 | case MFF_TCP_DST: | |
1678 | case MFF_UDP_DST: | |
0d56eaf2 | 1679 | case MFF_SCTP_DST: |
268a95e0 BP |
1680 | case MFF_ICMPV4_CODE: |
1681 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
1682 | match->wc.masks.tp_dst = htons(0); |
1683 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
1684 | break; |
1685 | ||
dc235f7f JR |
1686 | case MFF_TCP_FLAGS: |
1687 | match->wc.masks.tcp_flags = htons(0); | |
1688 | match->flow.tcp_flags = htons(0); | |
1689 | break; | |
1690 | ||
6a885fd0 | 1691 | case MFF_ND_TARGET: |
81a76618 BP |
1692 | memset(&match->wc.masks.nd_target, 0, |
1693 | sizeof match->wc.masks.nd_target); | |
1694 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
1695 | break; |
1696 | ||
1697 | case MFF_N_IDS: | |
1698 | default: | |
428b2edd | 1699 | OVS_NOT_REACHED(); |
6a885fd0 BP |
1700 | } |
1701 | } | |
1702 | ||
81a76618 | 1703 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
1704 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
1705 | * with a 1-bit indicating that the corresponding value bit must match and a | |
1706 | * 0-bit indicating a don't-care. | |
1707 | * | |
1708 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
1709 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
1710 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
1711 | * |
1712 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
4f7b100c JG |
1713 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. |
1714 | * | |
1715 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
1716 | * with the request or NULL if there is no error. The caller is reponsible | |
1fd58977 JR |
1717 | * for freeing the string. |
1718 | * | |
1719 | * Return a set of enum ofputil_protocol bits (as an uint32_t to avoid circular | |
1720 | * dependency on enum ofputil_protocol definition) indicating which OpenFlow | |
1721 | * protocol versions can support this functionality. */ | |
1722 | uint32_t | |
6a885fd0 BP |
1723 | mf_set(const struct mf_field *mf, |
1724 | const union mf_value *value, const union mf_value *mask, | |
4f7b100c | 1725 | struct match *match, char **err_str) |
6a885fd0 | 1726 | { |
53cb9c3e | 1727 | if (!mask || is_all_ones(mask, mf->n_bytes)) { |
4f7b100c | 1728 | mf_set_value(mf, value, match, err_str); |
a4ce8b25 | 1729 | return mf->usable_protocols_exact; |
1cb20095 JG |
1730 | } else if (is_all_zeros(mask, mf->n_bytes) && !mf_is_tun_metadata(mf)) { |
1731 | /* Tunnel metadata matches on the existence of the field itself, so | |
1732 | * it still needs to be encoded even if the value is wildcarded. */ | |
4f7b100c | 1733 | mf_set_wild(mf, match, err_str); |
db0b6c29 | 1734 | return OFPUTIL_P_ANY; |
6a885fd0 BP |
1735 | } |
1736 | ||
4f7b100c JG |
1737 | if (err_str) { |
1738 | *err_str = NULL; | |
1739 | } | |
1740 | ||
6a885fd0 | 1741 | switch (mf->id) { |
07659514 | 1742 | case MFF_CT_ZONE: |
a79f29f2 | 1743 | case MFF_RECIRC_ID: |
18080541 | 1744 | case MFF_CONJ_ID: |
6a885fd0 | 1745 | case MFF_IN_PORT: |
72333065 | 1746 | case MFF_IN_PORT_OXM: |
c61f3870 | 1747 | case MFF_ACTSET_OUTPUT: |
1b567fb9 | 1748 | case MFF_SKB_PRIORITY: |
6a885fd0 | 1749 | case MFF_ETH_TYPE: |
441c57a9 BP |
1750 | case MFF_DL_VLAN: |
1751 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 1752 | case MFF_VLAN_PCP: |
b02475c5 SH |
1753 | case MFF_MPLS_LABEL: |
1754 | case MFF_MPLS_TC: | |
1755 | case MFF_MPLS_BOS: | |
bef3f465 | 1756 | case MFF_MPLS_TTL: |
6a885fd0 | 1757 | case MFF_IP_PROTO: |
a61680c6 | 1758 | case MFF_IP_TTL: |
530180fd | 1759 | case MFF_IP_DSCP: |
1638b906 | 1760 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 1761 | case MFF_IP_ECN: |
6a885fd0 | 1762 | case MFF_ARP_OP: |
268a95e0 BP |
1763 | case MFF_ICMPV4_TYPE: |
1764 | case MFF_ICMPV4_CODE: | |
1765 | case MFF_ICMPV6_TYPE: | |
1766 | case MFF_ICMPV6_CODE: | |
af69bf19 | 1767 | return OFPUTIL_P_NONE; |
6a885fd0 | 1768 | |
a79f29f2 AZ |
1769 | case MFF_DP_HASH: |
1770 | match_set_dp_hash_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1771 | break; | |
6a885fd0 | 1772 | case MFF_TUN_ID: |
81a76618 | 1773 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 1774 | break; |
4fe3445a PS |
1775 | case MFF_TUN_SRC: |
1776 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
1777 | break; | |
1778 | case MFF_TUN_DST: | |
1779 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
1780 | break; | |
7dad8e9a TLSC |
1781 | case MFF_TUN_IPV6_SRC: |
1782 | match_set_tun_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); | |
1783 | break; | |
1784 | case MFF_TUN_IPV6_DST: | |
1785 | match_set_tun_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); | |
1786 | break; | |
4fe3445a PS |
1787 | case MFF_TUN_FLAGS: |
1788 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
1789 | break; | |
ac6073e3 MC |
1790 | case MFF_TUN_GBP_ID: |
1791 | match_set_tun_gbp_id_masked(match, value->be16, mask->be16); | |
1792 | break; | |
1793 | case MFF_TUN_GBP_FLAGS: | |
1794 | match_set_tun_gbp_flags_masked(match, value->u8, mask->u8); | |
1795 | break; | |
4fe3445a PS |
1796 | case MFF_TUN_TTL: |
1797 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
1798 | break; | |
1799 | case MFF_TUN_TOS: | |
1800 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
1801 | break; | |
9558d2a5 | 1802 | CASE_MFF_TUN_METADATA: |
4f7b100c | 1803 | tun_metadata_set_match(mf, value, mask, match, err_str); |
9558d2a5 | 1804 | break; |
4fe3445a | 1805 | |
969fc56c | 1806 | case MFF_METADATA: |
81a76618 | 1807 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 1808 | break; |
6a885fd0 | 1809 | |
0d7e2fe4 | 1810 | CASE_MFF_REGS: |
81a76618 BP |
1811 | match_set_reg_masked(match, mf->id - MFF_REG0, |
1812 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 | 1813 | break; |
ac923e91 | 1814 | |
79fe0f46 BP |
1815 | CASE_MFF_XREGS: |
1816 | match_set_xreg_masked(match, mf->id - MFF_XREG0, | |
1817 | ntohll(value->be64), ntohll(mask->be64)); | |
1818 | break; | |
1819 | ||
b23ada8e JP |
1820 | CASE_MFF_XXREGS: { |
1821 | match_set_xxreg_masked(match, mf->id - MFF_XXREG0, | |
1822 | ntoh128(value->be128), ntoh128(mask->be128)); | |
1823 | break; | |
1824 | } | |
1825 | ||
ac923e91 JG |
1826 | case MFF_PKT_MARK: |
1827 | match_set_pkt_mark_masked(match, ntohl(value->be32), | |
1828 | ntohl(mask->be32)); | |
1829 | break; | |
6a885fd0 | 1830 | |
07659514 JS |
1831 | case MFF_CT_STATE: |
1832 | match_set_ct_state_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1833 | break; | |
1834 | ||
8e53fe8c JS |
1835 | case MFF_CT_MARK: |
1836 | match_set_ct_mark_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1837 | break; | |
1838 | ||
32ea15f6 JP |
1839 | case MFF_CT_LABEL: |
1840 | match_set_ct_label_masked(match, ntoh128(value->be128), | |
1841 | mask ? ntoh128(mask->be128) : OVS_U128_MAX); | |
9daf2348 | 1842 | break; |
9daf2348 | 1843 | |
6a885fd0 | 1844 | case MFF_ETH_DST: |
81a76618 | 1845 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
1846 | break; |
1847 | ||
1848 | case MFF_ETH_SRC: | |
81a76618 | 1849 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
1850 | break; |
1851 | ||
e878338b SH |
1852 | case MFF_ARP_SHA: |
1853 | case MFF_ND_SLL: | |
81a76618 | 1854 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
1855 | break; |
1856 | ||
1857 | case MFF_ARP_THA: | |
1858 | case MFF_ND_TLL: | |
81a76618 | 1859 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
1860 | break; |
1861 | ||
6a885fd0 | 1862 | case MFF_VLAN_TCI: |
81a76618 | 1863 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
1864 | break; |
1865 | ||
cc34bc8c | 1866 | case MFF_VLAN_VID: |
81a76618 | 1867 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
1868 | break; |
1869 | ||
6a885fd0 | 1870 | case MFF_IPV4_SRC: |
81a76618 | 1871 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1872 | break; |
6a885fd0 BP |
1873 | |
1874 | case MFF_IPV4_DST: | |
81a76618 | 1875 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1876 | break; |
6a885fd0 BP |
1877 | |
1878 | case MFF_IPV6_SRC: | |
81a76618 | 1879 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1880 | break; |
1881 | ||
1882 | case MFF_IPV6_DST: | |
81a76618 | 1883 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1884 | break; |
1885 | ||
32455024 SH |
1886 | case MFF_IPV6_LABEL: |
1887 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
4f7b100c | 1888 | mf_set_value(mf, value, match, err_str); |
32455024 | 1889 | } else { |
81a76618 | 1890 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
1891 | } |
1892 | break; | |
1893 | ||
47284b1f | 1894 | case MFF_ND_TARGET: |
81a76618 | 1895 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
1896 | break; |
1897 | ||
7257b535 | 1898 | case MFF_IP_FRAG: |
81a76618 | 1899 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
1900 | break; |
1901 | ||
6a885fd0 | 1902 | case MFF_ARP_SPA: |
81a76618 | 1903 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1904 | break; |
6a885fd0 BP |
1905 | |
1906 | case MFF_ARP_TPA: | |
81a76618 | 1907 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1908 | break; |
6a885fd0 | 1909 | |
73f33563 BP |
1910 | case MFF_TCP_SRC: |
1911 | case MFF_UDP_SRC: | |
0d56eaf2 | 1912 | case MFF_SCTP_SRC: |
81a76618 | 1913 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
1914 | break; |
1915 | ||
1916 | case MFF_TCP_DST: | |
1917 | case MFF_UDP_DST: | |
0d56eaf2 | 1918 | case MFF_SCTP_DST: |
81a76618 | 1919 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
1920 | break; |
1921 | ||
dc235f7f JR |
1922 | case MFF_TCP_FLAGS: |
1923 | match_set_tcp_flags_masked(match, value->be16, mask->be16); | |
1924 | break; | |
1925 | ||
6a885fd0 BP |
1926 | case MFF_N_IDS: |
1927 | default: | |
428b2edd | 1928 | OVS_NOT_REACHED(); |
6a885fd0 | 1929 | } |
db0b6c29 | 1930 | |
a4ce8b25 BP |
1931 | return ((mf->usable_protocols_bitwise == mf->usable_protocols_cidr |
1932 | || ip_is_cidr(mask->be32)) | |
1933 | ? mf->usable_protocols_cidr | |
1934 | : mf->usable_protocols_bitwise); | |
6a885fd0 BP |
1935 | } |
1936 | ||
816fd533 BP |
1937 | static enum ofperr |
1938 | mf_check__(const struct mf_subfield *sf, const struct flow *flow, | |
1939 | const char *type) | |
6a885fd0 | 1940 | { |
816fd533 BP |
1941 | if (!sf->field) { |
1942 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
9e404d1e | 1943 | return OFPERR_OFPBAC_BAD_SET_TYPE; |
816fd533 BP |
1944 | } else if (!sf->n_bits) { |
1945 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
9e404d1e | 1946 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
1947 | } else if (sf->ofs >= sf->field->n_bits) { |
1948 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
1949 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 1950 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
1951 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { |
1952 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
1953 | "of %s field %s", sf->ofs, sf->n_bits, | |
1954 | sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 1955 | return OFPERR_OFPBAC_BAD_SET_LEN; |
aff49b8c | 1956 | } else if (flow && !mf_are_prereqs_ok(sf->field, flow, NULL)) { |
816fd533 BP |
1957 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", |
1958 | type, sf->field->name); | |
9e404d1e | 1959 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; |
6a885fd0 | 1960 | } else { |
816fd533 BP |
1961 | return 0; |
1962 | } | |
816fd533 | 1963 | } |
6a885fd0 | 1964 | |
816fd533 BP |
1965 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
1966 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
1967 | * ofp_mkerr()). */ | |
1968 | enum ofperr | |
1969 | mf_check_src(const struct mf_subfield *sf, const struct flow *flow) | |
1970 | { | |
1971 | return mf_check__(sf, flow, "source"); | |
1972 | } | |
6a885fd0 | 1973 | |
816fd533 BP |
1974 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
1975 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
1976 | * ofp_mkerr()). */ | |
1977 | enum ofperr | |
1978 | mf_check_dst(const struct mf_subfield *sf, const struct flow *flow) | |
1979 | { | |
1980 | int error = mf_check__(sf, flow, "destination"); | |
1981 | if (!error && !sf->field->writable) { | |
1982 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
1983 | sf->field->name); | |
9e404d1e | 1984 | return OFPERR_OFPBAC_BAD_SET_ARGUMENT; |
6a885fd0 | 1985 | } |
816fd533 | 1986 | return error; |
6a885fd0 BP |
1987 | } |
1988 | ||
81a76618 | 1989 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
1990 | * 'value' and 'mask', respectively. */ |
1991 | void | |
81a76618 | 1992 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
1993 | union mf_value *value, union mf_value *mask) |
1994 | { | |
81a76618 BP |
1995 | mf_get_value(mf, &match->flow, value); |
1996 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
1997 | } |
1998 | ||
6a885fd0 BP |
1999 | static char * |
2000 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2001 | uint8_t *valuep, uint8_t *maskp) | |
2002 | { | |
6a885fd0 | 2003 | char *tail; |
1734bf29 JG |
2004 | const char *err_str = ""; |
2005 | int err; | |
6a885fd0 | 2006 | |
1734bf29 JG |
2007 | err = parse_int_string(s, valuep, mf->n_bytes, &tail); |
2008 | if (err || (*tail != '\0' && *tail != '/')) { | |
2009 | err_str = "value"; | |
6a885fd0 BP |
2010 | goto syntax_error; |
2011 | } | |
2012 | ||
2013 | if (*tail == '/') { | |
1734bf29 JG |
2014 | err = parse_int_string(tail + 1, maskp, mf->n_bytes, &tail); |
2015 | if (err || *tail != '\0') { | |
2016 | err_str = "mask"; | |
6a885fd0 BP |
2017 | goto syntax_error; |
2018 | } | |
2019 | } else { | |
1734bf29 | 2020 | memset(maskp, 0xff, mf->n_bytes); |
6a885fd0 BP |
2021 | } |
2022 | ||
6a885fd0 BP |
2023 | return NULL; |
2024 | ||
2025 | syntax_error: | |
1734bf29 JG |
2026 | if (err == ERANGE) { |
2027 | return xasprintf("%s: %s too large for %u-byte field %s", | |
2028 | s, err_str, mf->n_bytes, mf->name); | |
2029 | } else { | |
2030 | return xasprintf("%s: bad syntax for %s %s", s, mf->name, err_str); | |
2031 | } | |
6a885fd0 BP |
2032 | } |
2033 | ||
2034 | static char * | |
2035 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
74ff3298 | 2036 | struct eth_addr *mac, struct eth_addr *mask) |
6a885fd0 | 2037 | { |
279fb135 | 2038 | int n; |
6a885fd0 | 2039 | |
279fb135 | 2040 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 | 2041 | |
279fb135 | 2042 | n = -1; |
74ff3298 | 2043 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(*mac), &n) |
279fb135 | 2044 | && n == strlen(s)) { |
74ff3298 | 2045 | *mask = eth_addr_exact; |
6a885fd0 | 2046 | return NULL; |
279fb135 | 2047 | } |
6a885fd0 | 2048 | |
279fb135 | 2049 | n = -1; |
c2c28dfd | 2050 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"%n", |
74ff3298 | 2051 | ETH_ADDR_SCAN_ARGS(*mac), ETH_ADDR_SCAN_ARGS(*mask), &n) |
279fb135 BP |
2052 | && n == strlen(s)) { |
2053 | return NULL; | |
6a885fd0 | 2054 | } |
279fb135 BP |
2055 | |
2056 | return xasprintf("%s: invalid Ethernet address", s); | |
6a885fd0 BP |
2057 | } |
2058 | ||
2059 | static char * | |
2060 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2061 | ovs_be32 *ip, ovs_be32 *mask) | |
2062 | { | |
cb22974d | 2063 | ovs_assert(mf->n_bytes == sizeof *ip); |
61440451 | 2064 | return ip_parse_masked(s, ip, mask); |
6a885fd0 BP |
2065 | } |
2066 | ||
2067 | static char * | |
2068 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
10f61b6d | 2069 | struct in6_addr *ipv6, struct in6_addr *mask) |
6a885fd0 | 2070 | { |
10f61b6d JP |
2071 | ovs_assert(mf->n_bytes == sizeof *ipv6); |
2072 | return ipv6_parse_masked(s, ipv6, mask); | |
6a885fd0 BP |
2073 | } |
2074 | ||
2075 | static char * | |
2076 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
2077 | ovs_be16 *valuep, ovs_be16 *maskp) | |
2078 | { | |
4e022ec0 | 2079 | ofp_port_t port; |
6a885fd0 | 2080 | |
cb22974d | 2081 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 JR |
2082 | |
2083 | if (ofputil_port_from_string(s, &port)) { | |
4e022ec0 | 2084 | *valuep = htons(ofp_to_u16(port)); |
b8266395 | 2085 | *maskp = OVS_BE16_MAX; |
6a885fd0 | 2086 | return NULL; |
6a885fd0 | 2087 | } |
33ab38d9 | 2088 | return xasprintf("%s: port value out of range for %s", s, mf->name); |
6a885fd0 BP |
2089 | } |
2090 | ||
72333065 JR |
2091 | static char * |
2092 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
2093 | ovs_be32 *valuep, ovs_be32 *maskp) | |
2094 | { | |
4e022ec0 | 2095 | ofp_port_t port; |
72333065 JR |
2096 | |
2097 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2098 | if (ofputil_port_from_string(s, &port)) { | |
2099 | *valuep = ofputil_port_to_ofp11(port); | |
b8266395 | 2100 | *maskp = OVS_BE32_MAX; |
72333065 JR |
2101 | return NULL; |
2102 | } | |
2103 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2104 | } | |
2105 | ||
7257b535 BP |
2106 | struct frag_handling { |
2107 | const char *name; | |
2108 | uint8_t mask; | |
2109 | uint8_t value; | |
2110 | }; | |
2111 | ||
2112 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2113 | #define A FLOW_NW_FRAG_ANY |
2114 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2115 | /* name mask value */ |
2116 | ||
2117 | { "no", A|L, 0 }, | |
2118 | { "first", A|L, A }, | |
2119 | { "later", A|L, A|L }, | |
2120 | ||
2121 | { "no", A, 0 }, | |
2122 | { "yes", A, A }, | |
2123 | ||
2124 | { "not_later", L, 0 }, | |
2125 | { "later", L, L }, | |
2126 | #undef A | |
2127 | #undef L | |
2128 | }; | |
2129 | ||
2130 | static char * | |
2131 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2132 | { | |
2133 | const struct frag_handling *h; | |
2134 | ||
2135 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2136 | if (!strcasecmp(s, h->name)) { | |
2137 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2138 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2139 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2140 | *valuep = h->value; |
2141 | return NULL; | |
2142 | } | |
2143 | } | |
2144 | ||
2145 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
2146 | "\"yes\", \"first\", \"later\", \"not_first\"", s); | |
2147 | } | |
2148 | ||
8e4c1621 JG |
2149 | static char * |
2150 | parse_mf_flags(const char *s, const char *(*bit_to_string)(uint32_t), | |
2151 | const char *field_name, ovs_be16 *flagsp, ovs_be16 allowed, | |
2152 | ovs_be16 *maskp) | |
4fe3445a | 2153 | { |
8e4c1621 JG |
2154 | int err; |
2155 | char *err_str; | |
2156 | uint32_t flags, mask; | |
4fe3445a | 2157 | |
8e4c1621 JG |
2158 | err = parse_flags(s, bit_to_string, '\0', field_name, &err_str, |
2159 | &flags, ntohs(allowed), maskp ? &mask : NULL); | |
2160 | if (err < 0) { | |
2161 | return err_str; | |
2162 | } | |
4fe3445a | 2163 | |
8e4c1621 JG |
2164 | *flagsp = htons(flags); |
2165 | if (maskp) { | |
2166 | *maskp = htons(mask); | |
4fe3445a PS |
2167 | } |
2168 | ||
8e4c1621 | 2169 | return NULL; |
4fe3445a PS |
2170 | } |
2171 | ||
2172 | static char * | |
8e4c1621 | 2173 | mf_from_tcp_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
4fe3445a | 2174 | { |
8e4c1621 JG |
2175 | return parse_mf_flags(s, packet_tcp_flag_to_string, "TCP", flagsp, |
2176 | TCP_FLAGS_BE16(OVS_BE16_MAX), maskp); | |
4fe3445a PS |
2177 | } |
2178 | ||
61bf6666 | 2179 | static char * |
8e4c1621 | 2180 | mf_from_tun_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
61bf6666 | 2181 | { |
8e4c1621 | 2182 | return parse_mf_flags(s, flow_tun_flag_to_string, "tunnel", flagsp, |
b666962b | 2183 | htons(FLOW_TNL_PUB_F_MASK), maskp); |
61bf6666 JR |
2184 | } |
2185 | ||
07659514 JS |
2186 | static char * |
2187 | mf_from_ct_state_string(const char *s, ovs_be32 *flagsp, ovs_be32 *maskp) | |
2188 | { | |
2189 | int err; | |
2190 | char *err_str; | |
2191 | uint32_t flags, mask; | |
2192 | ||
2193 | err = parse_flags(s, ct_state_to_string, '\0', "ct_state", &err_str, | |
2194 | &flags, CS_SUPPORTED_MASK, maskp ? &mask : NULL); | |
2195 | if (err < 0) { | |
2196 | return err_str; | |
2197 | } | |
2198 | ||
2199 | *flagsp = htonl(flags); | |
2200 | if (maskp) { | |
2201 | *maskp = htonl(mask); | |
2202 | } | |
2203 | ||
2204 | return NULL; | |
2205 | } | |
2206 | ||
6a885fd0 BP |
2207 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2208 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2209 | char * | |
2210 | mf_parse(const struct mf_field *mf, const char *s, | |
2211 | union mf_value *value, union mf_value *mask) | |
2212 | { | |
3634dff8 BP |
2213 | char *error; |
2214 | ||
bedde04c | 2215 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2216 | memset(value, 0, mf->n_bytes); |
2217 | memset(mask, 0, mf->n_bytes); | |
2218 | return NULL; | |
2219 | } | |
2220 | ||
2221 | switch (mf->string) { | |
2222 | case MFS_DECIMAL: | |
2223 | case MFS_HEXADECIMAL: | |
3634dff8 BP |
2224 | error = mf_from_integer_string(mf, s, |
2225 | (uint8_t *) value, (uint8_t *) mask); | |
2226 | break; | |
6a885fd0 | 2227 | |
07659514 JS |
2228 | case MFS_CT_STATE: |
2229 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2230 | error = mf_from_ct_state_string(s, &value->be32, &mask->be32); | |
2231 | break; | |
2232 | ||
6a885fd0 | 2233 | case MFS_ETHERNET: |
74ff3298 | 2234 | error = mf_from_ethernet_string(mf, s, &value->mac, &mask->mac); |
3634dff8 | 2235 | break; |
6a885fd0 BP |
2236 | |
2237 | case MFS_IPV4: | |
3634dff8 BP |
2238 | error = mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); |
2239 | break; | |
6a885fd0 BP |
2240 | |
2241 | case MFS_IPV6: | |
3634dff8 BP |
2242 | error = mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); |
2243 | break; | |
6a885fd0 BP |
2244 | |
2245 | case MFS_OFP_PORT: | |
3634dff8 BP |
2246 | error = mf_from_ofp_port_string(mf, s, &value->be16, &mask->be16); |
2247 | break; | |
7257b535 | 2248 | |
72333065 | 2249 | case MFS_OFP_PORT_OXM: |
3634dff8 BP |
2250 | error = mf_from_ofp_port_string32(mf, s, &value->be32, &mask->be32); |
2251 | break; | |
72333065 | 2252 | |
7257b535 | 2253 | case MFS_FRAG: |
3634dff8 BP |
2254 | error = mf_from_frag_string(s, &value->u8, &mask->u8); |
2255 | break; | |
4fe3445a PS |
2256 | |
2257 | case MFS_TNL_FLAGS: | |
cb22974d | 2258 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
3634dff8 BP |
2259 | error = mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
2260 | break; | |
2261 | ||
61bf6666 JR |
2262 | case MFS_TCP_FLAGS: |
2263 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); | |
2264 | error = mf_from_tcp_flags_string(s, &value->be16, &mask->be16); | |
2265 | break; | |
2266 | ||
3634dff8 | 2267 | default: |
428b2edd | 2268 | OVS_NOT_REACHED(); |
6a885fd0 | 2269 | } |
3634dff8 BP |
2270 | |
2271 | if (!error && !mf_is_mask_valid(mf, mask)) { | |
2272 | error = xasprintf("%s: invalid mask for field %s", s, mf->name); | |
2273 | } | |
2274 | return error; | |
6a885fd0 BP |
2275 | } |
2276 | ||
2277 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
2278 | * successful, otherwise a malloc()'d string describing the error. */ | |
2279 | char * | |
2280 | mf_parse_value(const struct mf_field *mf, const char *s, union mf_value *value) | |
2281 | { | |
2282 | union mf_value mask; | |
2283 | char *error; | |
2284 | ||
2285 | error = mf_parse(mf, s, value, &mask); | |
2286 | if (error) { | |
2287 | return error; | |
2288 | } | |
2289 | ||
2290 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
2291 | return xasprintf("%s: wildcards not allowed here", s); | |
2292 | } | |
2293 | return NULL; | |
2294 | } | |
2295 | ||
2296 | static void | |
2297 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
2298 | const uint8_t *maskp, struct ds *s) | |
2299 | { | |
6a885fd0 | 2300 | if (mf->string == MFS_HEXADECIMAL) { |
1734bf29 | 2301 | ds_put_hex(s, valuep, mf->n_bytes); |
6a885fd0 | 2302 | } else { |
1734bf29 JG |
2303 | unsigned long long int integer = 0; |
2304 | int i; | |
6a885fd0 | 2305 | |
1734bf29 | 2306 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 | 2307 | for (i = 0; i < mf->n_bytes; i++) { |
1734bf29 | 2308 | integer = (integer << 8) | valuep[i]; |
6a885fd0 | 2309 | } |
1734bf29 JG |
2310 | ds_put_format(s, "%lld", integer); |
2311 | } | |
6a885fd0 | 2312 | |
1734bf29 | 2313 | if (maskp) { |
6a885fd0 BP |
2314 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm |
2315 | * not sure that that a bit-mask written in decimal is ever easier to | |
2316 | * understand than the same bit-mask written in hexadecimal. */ | |
1734bf29 JG |
2317 | ds_put_char(s, '/'); |
2318 | ds_put_hex(s, maskp, mf->n_bytes); | |
6a885fd0 BP |
2319 | } |
2320 | } | |
2321 | ||
7257b535 | 2322 | static void |
8f75dea3 | 2323 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
2324 | { |
2325 | const struct frag_handling *h; | |
7257b535 | 2326 | |
eadef313 | 2327 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 2328 | value &= mask; |
7257b535 BP |
2329 | |
2330 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2331 | if (value == h->value && mask == h->mask) { | |
2332 | ds_put_cstr(s, h->name); | |
2333 | return; | |
2334 | } | |
2335 | } | |
2336 | ds_put_cstr(s, "<error>"); | |
2337 | } | |
2338 | ||
4fe3445a | 2339 | static void |
b666962b | 2340 | mf_format_tnl_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) |
4fe3445a | 2341 | { |
b666962b JG |
2342 | format_flags_masked(s, NULL, flow_tun_flag_to_string, ntohs(value), |
2343 | ntohs(mask) & FLOW_TNL_PUB_F_MASK, FLOW_TNL_PUB_F_MASK); | |
4fe3445a PS |
2344 | } |
2345 | ||
61bf6666 JR |
2346 | static void |
2347 | mf_format_tcp_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) | |
2348 | { | |
2349 | format_flags_masked(s, NULL, packet_tcp_flag_to_string, ntohs(value), | |
8e4c1621 | 2350 | TCP_FLAGS(mask), TCP_FLAGS(OVS_BE16_MAX)); |
61bf6666 JR |
2351 | } |
2352 | ||
07659514 JS |
2353 | static void |
2354 | mf_format_ct_state_string(ovs_be32 value, ovs_be32 mask, struct ds *s) | |
2355 | { | |
2356 | format_flags_masked(s, NULL, ct_state_to_string, ntohl(value), | |
2357 | ntohl(mask), UINT16_MAX); | |
2358 | } | |
2359 | ||
6a885fd0 BP |
2360 | /* Appends to 's' a string representation of field 'mf' whose value is in |
2361 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
2362 | void | |
2363 | mf_format(const struct mf_field *mf, | |
2364 | const union mf_value *value, const union mf_value *mask, | |
2365 | struct ds *s) | |
2366 | { | |
2367 | if (mask) { | |
53cb9c3e | 2368 | if (is_all_zeros(mask, mf->n_bytes)) { |
6a885fd0 BP |
2369 | ds_put_cstr(s, "ANY"); |
2370 | return; | |
53cb9c3e | 2371 | } else if (is_all_ones(mask, mf->n_bytes)) { |
6a885fd0 BP |
2372 | mask = NULL; |
2373 | } | |
2374 | } | |
2375 | ||
2376 | switch (mf->string) { | |
72333065 JR |
2377 | case MFS_OFP_PORT_OXM: |
2378 | if (!mask) { | |
4e022ec0 | 2379 | ofp_port_t port; |
bc146369 | 2380 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
2381 | ofputil_format_port(port, s); |
2382 | break; | |
2383 | } | |
2384 | /* fall through */ | |
6a885fd0 BP |
2385 | case MFS_OFP_PORT: |
2386 | if (!mask) { | |
4e022ec0 | 2387 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), s); |
6a885fd0 BP |
2388 | break; |
2389 | } | |
2390 | /* fall through */ | |
2391 | case MFS_DECIMAL: | |
2392 | case MFS_HEXADECIMAL: | |
2393 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
2394 | break; | |
2395 | ||
07659514 JS |
2396 | case MFS_CT_STATE: |
2397 | mf_format_ct_state_string(value->be32, | |
2398 | mask ? mask->be32 : OVS_BE32_MAX, s); | |
2399 | break; | |
2400 | ||
6a885fd0 | 2401 | case MFS_ETHERNET: |
74ff3298 | 2402 | eth_format_masked(value->mac, mask ? &mask->mac : NULL, s); |
6a885fd0 BP |
2403 | break; |
2404 | ||
2405 | case MFS_IPV4: | |
b8266395 | 2406 | ip_format_masked(value->be32, mask ? mask->be32 : OVS_BE32_MAX, s); |
6a885fd0 BP |
2407 | break; |
2408 | ||
2409 | case MFS_IPV6: | |
ac6d120f | 2410 | ipv6_format_masked(&value->ipv6, mask ? &mask->ipv6 : NULL, s); |
6a885fd0 BP |
2411 | break; |
2412 | ||
7257b535 | 2413 | case MFS_FRAG: |
8f75dea3 | 2414 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
2415 | break; |
2416 | ||
4fe3445a | 2417 | case MFS_TNL_FLAGS: |
b666962b JG |
2418 | mf_format_tnl_flags_string(value->be16, |
2419 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
4fe3445a PS |
2420 | break; |
2421 | ||
61bf6666 JR |
2422 | case MFS_TCP_FLAGS: |
2423 | mf_format_tcp_flags_string(value->be16, | |
2424 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
2425 | break; | |
2426 | ||
6a885fd0 | 2427 | default: |
428b2edd | 2428 | OVS_NOT_REACHED(); |
6a885fd0 BP |
2429 | } |
2430 | } | |
816fd533 | 2431 | \f |
9bab681f IY |
2432 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
2433 | * least-significant bits in 'x'. | |
2434 | */ | |
2435 | void | |
2436 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
2437 | const union mf_subvalue *x, struct flow *flow) | |
2438 | { | |
2439 | const struct mf_field *field = sf->field; | |
2440 | union mf_value value; | |
2441 | ||
2442 | mf_get_value(field, flow, &value); | |
158edc8d | 2443 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
2444 | sf->ofs, sf->n_bits); |
2445 | mf_set_flow_value(field, &value, flow); | |
2446 | } | |
2447 | ||
81a76618 | 2448 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 2449 | * least-significant bits in 'x'. |
615660a9 | 2450 | */ |
1b35df45 BP |
2451 | void |
2452 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 2453 | struct match *match) |
1b35df45 BP |
2454 | { |
2455 | const struct mf_field *field = sf->field; | |
2456 | union mf_value value, mask; | |
2457 | ||
81a76618 | 2458 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
2459 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
2460 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
4f7b100c | 2461 | mf_set(field, &value, &mask, match, NULL); |
1b35df45 BP |
2462 | } |
2463 | ||
35c1f798 BP |
2464 | /* 'v' and 'm' correspond to values of 'field'. This function copies them into |
2465 | * 'match' in the correspond positions. */ | |
2466 | void | |
2467 | mf_mask_subfield(const struct mf_field *field, | |
2468 | const union mf_subvalue *v, | |
2469 | const union mf_subvalue *m, | |
2470 | struct match *match) | |
2471 | { | |
2472 | union mf_value value, mask; | |
2473 | ||
2474 | mf_get(field, match, &value, &mask); | |
2475 | bitwise_copy(v, sizeof *v, 0, &value, field->n_bytes, 0, field->n_bits); | |
2476 | bitwise_copy(m, sizeof *m, 0, &mask, field->n_bytes, 0, field->n_bits); | |
4f7b100c | 2477 | mf_set(field, &value, &mask, match, NULL); |
35c1f798 BP |
2478 | } |
2479 | ||
1b35df45 BP |
2480 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
2481 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
2482 | void | |
2483 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
2484 | union mf_subvalue *x) | |
2485 | { | |
2486 | union mf_value value; | |
2487 | ||
2488 | mf_get_value(sf->field, flow, &value); | |
2489 | ||
2490 | memset(x, 0, sizeof *x); | |
2491 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
2492 | x, sizeof *x, 0, | |
2493 | sf->n_bits); | |
2494 | } | |
2495 | ||
816fd533 BP |
2496 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
2497 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
2498 | * less. */ | |
2499 | uint64_t | |
2500 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
2501 | { | |
2502 | union mf_value value; | |
2503 | ||
2504 | mf_get_value(sf->field, flow, &value); | |
2505 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2506 | } | |
2507 | ||
9bab681f IY |
2508 | void |
2509 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
2510 | { | |
e7ae59f9 | 2511 | ds_put_hex(s, subvalue->u8, sizeof subvalue->u8); |
9bab681f | 2512 | } |
bc65c25a SH |
2513 | |
2514 | void | |
2515 | field_array_set(enum mf_field_id id, const union mf_value *value, | |
2516 | struct field_array *fa) | |
2517 | { | |
e8dba719 JR |
2518 | size_t i, offset = 0; |
2519 | ||
bc65c25a | 2520 | ovs_assert(id < MFF_N_IDS); |
e8dba719 JR |
2521 | |
2522 | /* Find the spot for 'id'. */ | |
2523 | BITMAP_FOR_EACH_1 (i, id, fa->used.bm) { | |
2524 | offset += mf_from_id(i)->n_bytes; | |
2525 | } | |
2526 | ||
2527 | size_t value_size = mf_from_id(id)->n_bytes; | |
2528 | ||
2529 | /* make room if necessary. */ | |
2530 | if (!bitmap_is_set(fa->used.bm, id)) { | |
2531 | fa->values = xrealloc(fa->values, fa->values_size + value_size); | |
2532 | /* Move remainder forward, if any. */ | |
2533 | if (offset < fa->values_size) { | |
2534 | memmove(fa->values + offset + value_size, fa->values + offset, | |
2535 | fa->values_size - offset); | |
2536 | } | |
2537 | fa->values_size += value_size; | |
2538 | } | |
bc65c25a | 2539 | bitmap_set1(fa->used.bm, id); |
e8dba719 JR |
2540 | |
2541 | memcpy(fa->values + offset, value, value_size); | |
bc65c25a | 2542 | } |