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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 | ||
19 | #include "meta-flow.h" | |
20 | ||
6a885fd0 BP |
21 | #include <errno.h> |
22 | #include <limits.h> | |
23 | #include <netinet/icmp6.h> | |
24 | #include <netinet/ip6.h> | |
25 | ||
26 | #include "classifier.h" | |
27 | #include "dynamic-string.h" | |
178742f9 | 28 | #include "nx-match.h" |
6a885fd0 | 29 | #include "ofp-util.h" |
4663f9e0 | 30 | #include "ovs-thread.h" |
6a885fd0 BP |
31 | #include "packets.h" |
32 | #include "random.h" | |
33 | #include "shash.h" | |
34 | #include "socket-util.h" | |
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 JS |
234 | case MFF_CT_LABEL: |
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); | |
c61f3870 BP |
240 | case MFF_ACTSET_OUTPUT: |
241 | return !wc->masks.actset_output; | |
6a885fd0 | 242 | |
73c0ce34 | 243 | case MFF_ETH_SRC: |
26720e24 | 244 | return eth_addr_is_zero(wc->masks.dl_src); |
6a885fd0 | 245 | case MFF_ETH_DST: |
26720e24 | 246 | return eth_addr_is_zero(wc->masks.dl_dst); |
e2170cff | 247 | case MFF_ETH_TYPE: |
26720e24 | 248 | return !wc->masks.dl_type; |
6a885fd0 | 249 | |
e878338b SH |
250 | case MFF_ARP_SHA: |
251 | case MFF_ND_SLL: | |
26720e24 | 252 | return eth_addr_is_zero(wc->masks.arp_sha); |
e878338b SH |
253 | |
254 | case MFF_ARP_THA: | |
255 | case MFF_ND_TLL: | |
26720e24 | 256 | return eth_addr_is_zero(wc->masks.arp_tha); |
e878338b | 257 | |
6a885fd0 | 258 | case MFF_VLAN_TCI: |
26720e24 | 259 | return !wc->masks.vlan_tci; |
441c57a9 | 260 | case MFF_DL_VLAN: |
26720e24 | 261 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK)); |
cc34bc8c | 262 | case MFF_VLAN_VID: |
26720e24 | 263 | return !(wc->masks.vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI)); |
441c57a9 | 264 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 265 | case MFF_VLAN_PCP: |
26720e24 | 266 | return !(wc->masks.vlan_tci & htons(VLAN_PCP_MASK)); |
6a885fd0 | 267 | |
b02475c5 | 268 | case MFF_MPLS_LABEL: |
8bfd0fda | 269 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK)); |
b02475c5 | 270 | case MFF_MPLS_TC: |
60df616f | 271 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TC_MASK)); |
b02475c5 | 272 | case MFF_MPLS_BOS: |
60df616f | 273 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_BOS_MASK)); |
bef3f465 BP |
274 | case MFF_MPLS_TTL: |
275 | return !(wc->masks.mpls_lse[0] & htonl(MPLS_TTL_MASK)); | |
b02475c5 | 276 | |
6a885fd0 | 277 | case MFF_IPV4_SRC: |
26720e24 | 278 | return !wc->masks.nw_src; |
6a885fd0 | 279 | case MFF_IPV4_DST: |
26720e24 | 280 | return !wc->masks.nw_dst; |
6a885fd0 BP |
281 | |
282 | case MFF_IPV6_SRC: | |
26720e24 | 283 | return ipv6_mask_is_any(&wc->masks.ipv6_src); |
6a885fd0 | 284 | case MFF_IPV6_DST: |
26720e24 | 285 | return ipv6_mask_is_any(&wc->masks.ipv6_dst); |
6a885fd0 | 286 | |
32455024 | 287 | case MFF_IPV6_LABEL: |
26720e24 | 288 | return !wc->masks.ipv6_label; |
32455024 | 289 | |
851d3105 | 290 | case MFF_IP_PROTO: |
26720e24 | 291 | return !wc->masks.nw_proto; |
5d9499c4 | 292 | case MFF_IP_DSCP: |
1638b906 | 293 | case MFF_IP_DSCP_SHIFTED: |
26720e24 | 294 | return !(wc->masks.nw_tos & IP_DSCP_MASK); |
5d9499c4 | 295 | case MFF_IP_ECN: |
26720e24 | 296 | return !(wc->masks.nw_tos & IP_ECN_MASK); |
3840c406 | 297 | case MFF_IP_TTL: |
26720e24 | 298 | return !wc->masks.nw_ttl; |
5d9499c4 | 299 | |
47284b1f | 300 | case MFF_ND_TARGET: |
26720e24 | 301 | return ipv6_mask_is_any(&wc->masks.nd_target); |
47284b1f | 302 | |
7257b535 | 303 | case MFF_IP_FRAG: |
26720e24 | 304 | return !(wc->masks.nw_frag & FLOW_NW_FRAG_MASK); |
7257b535 | 305 | |
851d3105 | 306 | case MFF_ARP_OP: |
26720e24 | 307 | return !wc->masks.nw_proto; |
6a885fd0 | 308 | case MFF_ARP_SPA: |
26720e24 | 309 | return !wc->masks.nw_src; |
6a885fd0 | 310 | case MFF_ARP_TPA: |
26720e24 | 311 | return !wc->masks.nw_dst; |
6a885fd0 | 312 | |
73f33563 BP |
313 | case MFF_TCP_SRC: |
314 | case MFF_UDP_SRC: | |
0d56eaf2 | 315 | case MFF_SCTP_SRC: |
73f33563 BP |
316 | case MFF_ICMPV4_TYPE: |
317 | case MFF_ICMPV6_TYPE: | |
26720e24 | 318 | return !wc->masks.tp_src; |
73f33563 BP |
319 | case MFF_TCP_DST: |
320 | case MFF_UDP_DST: | |
0d56eaf2 | 321 | case MFF_SCTP_DST: |
73f33563 BP |
322 | case MFF_ICMPV4_CODE: |
323 | case MFF_ICMPV6_CODE: | |
26720e24 | 324 | return !wc->masks.tp_dst; |
dc235f7f JR |
325 | case MFF_TCP_FLAGS: |
326 | return !wc->masks.tcp_flags; | |
73f33563 | 327 | |
6a885fd0 BP |
328 | case MFF_N_IDS: |
329 | default: | |
428b2edd | 330 | OVS_NOT_REACHED(); |
6a885fd0 BP |
331 | } |
332 | } | |
333 | ||
334 | /* Initializes 'mask' with the wildcard bit pattern for field 'mf' within 'wc'. | |
335 | * Each bit in 'mask' will be set to 1 if the bit is significant for matching | |
336 | * purposes, or to 0 if it is wildcarded. | |
337 | * | |
338 | * The caller is responsible for ensuring that 'wc' corresponds to a flow that | |
339 | * meets 'mf''s prerequisites. */ | |
340 | void | |
341 | mf_get_mask(const struct mf_field *mf, const struct flow_wildcards *wc, | |
342 | union mf_value *mask) | |
343 | { | |
fb15feb0 | 344 | mf_get_value(mf, &wc->masks, mask); |
6a885fd0 BP |
345 | } |
346 | ||
347 | /* Tests whether 'mask' is a valid wildcard bit pattern for 'mf'. Returns true | |
348 | * if the mask is valid, false otherwise. */ | |
349 | bool | |
350 | mf_is_mask_valid(const struct mf_field *mf, const union mf_value *mask) | |
351 | { | |
352 | switch (mf->maskable) { | |
353 | case MFM_NONE: | |
53cb9c3e JR |
354 | return (is_all_zeros(mask, mf->n_bytes) || |
355 | is_all_ones(mask, mf->n_bytes)); | |
6a885fd0 BP |
356 | |
357 | case MFM_FULLY: | |
358 | return true; | |
6a885fd0 BP |
359 | } |
360 | ||
428b2edd | 361 | OVS_NOT_REACHED(); |
6a885fd0 BP |
362 | } |
363 | ||
6a885fd0 BP |
364 | /* Returns true if 'flow' meets the prerequisites for 'mf', false otherwise. */ |
365 | bool | |
366 | mf_are_prereqs_ok(const struct mf_field *mf, const struct flow *flow) | |
367 | { | |
368 | switch (mf->prereqs) { | |
369 | case MFP_NONE: | |
370 | return true; | |
371 | ||
372 | case MFP_ARP: | |
8087f5ff MM |
373 | return (flow->dl_type == htons(ETH_TYPE_ARP) || |
374 | flow->dl_type == htons(ETH_TYPE_RARP)); | |
6a885fd0 BP |
375 | case MFP_IPV4: |
376 | return flow->dl_type == htons(ETH_TYPE_IP); | |
377 | case MFP_IPV6: | |
378 | return flow->dl_type == htons(ETH_TYPE_IPV6); | |
8069b0da | 379 | case MFP_VLAN_VID: |
5921e99a | 380 | return (flow->vlan_tci & htons(VLAN_CFI)) != 0; |
b02475c5 SH |
381 | case MFP_MPLS: |
382 | return eth_type_mpls(flow->dl_type); | |
6a885fd0 BP |
383 | case MFP_IP_ANY: |
384 | return is_ip_any(flow); | |
385 | ||
386 | case MFP_TCP: | |
b8778a0d JR |
387 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_TCP |
388 | && !(flow->nw_frag & FLOW_NW_FRAG_LATER); | |
6a885fd0 | 389 | case MFP_UDP: |
b8778a0d JR |
390 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_UDP |
391 | && !(flow->nw_frag & FLOW_NW_FRAG_LATER); | |
0d56eaf2 | 392 | case MFP_SCTP: |
b8778a0d JR |
393 | return is_ip_any(flow) && flow->nw_proto == IPPROTO_SCTP |
394 | && !(flow->nw_frag & FLOW_NW_FRAG_LATER); | |
268a95e0 BP |
395 | case MFP_ICMPV4: |
396 | return is_icmpv4(flow); | |
6a885fd0 BP |
397 | case MFP_ICMPV6: |
398 | return is_icmpv6(flow); | |
6a885fd0 BP |
399 | |
400 | case MFP_ND: | |
401 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
402 | && flow->tp_dst == htons(0) |
403 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) || | |
404 | flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
405 | case MFP_ND_SOLICIT: |
406 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
407 | && flow->tp_dst == htons(0) |
408 | && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT))); | |
6a885fd0 BP |
409 | case MFP_ND_ADVERT: |
410 | return (is_icmpv6(flow) | |
3ee8a9f0 BP |
411 | && flow->tp_dst == htons(0) |
412 | && (flow->tp_src == htons(ND_NEIGHBOR_ADVERT))); | |
6a885fd0 BP |
413 | } |
414 | ||
428b2edd | 415 | OVS_NOT_REACHED(); |
6a885fd0 BP |
416 | } |
417 | ||
b283836c JR |
418 | /* Set field and it's prerequisities in the mask. |
419 | * This is only ever called for writeable 'mf's, but we do not make the | |
e3e96509 | 420 | * distinction here. */ |
b283836c | 421 | void |
5e2e998a | 422 | mf_mask_field_and_prereqs(const struct mf_field *mf, struct flow_wildcards *wc) |
b283836c | 423 | { |
5e2e998a | 424 | mf_set_flow_value(mf, &exact_match_mask, &wc->masks); |
b283836c JR |
425 | |
426 | switch (mf->prereqs) { | |
427 | case MFP_ND: | |
428 | case MFP_ND_SOLICIT: | |
429 | case MFP_ND_ADVERT: | |
5e2e998a JR |
430 | WC_MASK_FIELD(wc, tp_src); |
431 | WC_MASK_FIELD(wc, tp_dst); | |
b283836c JR |
432 | /* Fall through. */ |
433 | case MFP_TCP: | |
434 | case MFP_UDP: | |
435 | case MFP_SCTP: | |
436 | case MFP_ICMPV4: | |
437 | case MFP_ICMPV6: | |
b8778a0d | 438 | /* nw_frag always unwildcarded. */ |
5e2e998a | 439 | WC_MASK_FIELD(wc, nw_proto); |
b283836c JR |
440 | /* Fall through. */ |
441 | case MFP_ARP: | |
442 | case MFP_IPV4: | |
443 | case MFP_IPV6: | |
444 | case MFP_MPLS: | |
445 | case MFP_IP_ANY: | |
5e2e998a | 446 | /* dl_type always unwildcarded. */ |
b283836c JR |
447 | break; |
448 | case MFP_VLAN_VID: | |
5e2e998a | 449 | WC_MASK_FIELD_MASK(wc, vlan_tci, htons(VLAN_CFI)); |
b283836c JR |
450 | break; |
451 | case MFP_NONE: | |
452 | break; | |
453 | } | |
454 | } | |
455 | ||
0c4b9393 SH |
456 | /* Set bits of 'bm' corresponding to the field 'mf' and it's prerequisities. */ |
457 | void | |
458 | mf_bitmap_set_field_and_prereqs(const struct mf_field *mf, struct mf_bitmap *bm) | |
459 | { | |
460 | bitmap_set1(bm->bm, mf->id); | |
461 | ||
462 | switch (mf->prereqs) { | |
463 | case MFP_ND: | |
464 | case MFP_ND_SOLICIT: | |
465 | case MFP_ND_ADVERT: | |
466 | bitmap_set1(bm->bm, MFF_TCP_SRC); | |
467 | bitmap_set1(bm->bm, MFF_TCP_DST); | |
468 | /* Fall through. */ | |
469 | case MFP_TCP: | |
470 | case MFP_UDP: | |
471 | case MFP_SCTP: | |
472 | case MFP_ICMPV4: | |
473 | case MFP_ICMPV6: | |
474 | /* nw_frag always unwildcarded. */ | |
475 | bitmap_set1(bm->bm, MFF_IP_PROTO); | |
476 | /* Fall through. */ | |
477 | case MFP_ARP: | |
478 | case MFP_IPV4: | |
479 | case MFP_IPV6: | |
480 | case MFP_MPLS: | |
481 | case MFP_IP_ANY: | |
482 | bitmap_set1(bm->bm, MFF_ETH_TYPE); | |
483 | break; | |
484 | case MFP_VLAN_VID: | |
485 | bitmap_set1(bm->bm, MFF_VLAN_TCI); | |
486 | break; | |
487 | case MFP_NONE: | |
488 | break; | |
489 | } | |
490 | } | |
b283836c | 491 | |
6a885fd0 BP |
492 | /* Returns true if 'value' may be a valid value *as part of a masked match*, |
493 | * false otherwise. | |
494 | * | |
495 | * A value is not rejected just because it is not valid for the field in | |
496 | * question, but only if it doesn't make sense to test the bits in question at | |
497 | * all. For example, the MFF_VLAN_TCI field will never have a nonzero value | |
498 | * without the VLAN_CFI bit being set, but we can't reject those values because | |
499 | * it is still legitimate to test just for those bits (see the documentation | |
500 | * for NXM_OF_VLAN_TCI in nicira-ext.h). On the other hand, there is never a | |
530180fd | 501 | * reason to set the low bit of MFF_IP_DSCP to 1, so we reject that. */ |
6a885fd0 BP |
502 | bool |
503 | mf_is_value_valid(const struct mf_field *mf, const union mf_value *value) | |
504 | { | |
505 | switch (mf->id) { | |
a79f29f2 AZ |
506 | case MFF_DP_HASH: |
507 | case MFF_RECIRC_ID: | |
18080541 | 508 | case MFF_CONJ_ID: |
6a885fd0 | 509 | case MFF_TUN_ID: |
4fe3445a PS |
510 | case MFF_TUN_SRC: |
511 | case MFF_TUN_DST: | |
7dad8e9a TLSC |
512 | case MFF_TUN_IPV6_SRC: |
513 | case MFF_TUN_IPV6_DST: | |
4fe3445a PS |
514 | case MFF_TUN_TOS: |
515 | case MFF_TUN_TTL: | |
ac6073e3 MC |
516 | case MFF_TUN_GBP_ID: |
517 | case MFF_TUN_GBP_FLAGS: | |
9558d2a5 | 518 | CASE_MFF_TUN_METADATA: |
969fc56c | 519 | case MFF_METADATA: |
6a885fd0 | 520 | case MFF_IN_PORT: |
1b567fb9 | 521 | case MFF_SKB_PRIORITY: |
1362e248 | 522 | case MFF_PKT_MARK: |
07659514 | 523 | case MFF_CT_ZONE: |
8e53fe8c | 524 | case MFF_CT_MARK: |
9daf2348 | 525 | case MFF_CT_LABEL: |
0d7e2fe4 | 526 | CASE_MFF_REGS: |
79fe0f46 | 527 | CASE_MFF_XREGS: |
6a885fd0 BP |
528 | case MFF_ETH_SRC: |
529 | case MFF_ETH_DST: | |
530 | case MFF_ETH_TYPE: | |
531 | case MFF_VLAN_TCI: | |
bef3f465 | 532 | case MFF_MPLS_TTL: |
6a885fd0 BP |
533 | case MFF_IPV4_SRC: |
534 | case MFF_IPV4_DST: | |
535 | case MFF_IPV6_SRC: | |
536 | case MFF_IPV6_DST: | |
537 | case MFF_IP_PROTO: | |
a61680c6 | 538 | case MFF_IP_TTL: |
6a885fd0 BP |
539 | case MFF_ARP_SPA: |
540 | case MFF_ARP_TPA: | |
541 | case MFF_ARP_SHA: | |
542 | case MFF_ARP_THA: | |
543 | case MFF_TCP_SRC: | |
544 | case MFF_TCP_DST: | |
545 | case MFF_UDP_SRC: | |
546 | case MFF_UDP_DST: | |
0d56eaf2 JS |
547 | case MFF_SCTP_SRC: |
548 | case MFF_SCTP_DST: | |
268a95e0 BP |
549 | case MFF_ICMPV4_TYPE: |
550 | case MFF_ICMPV4_CODE: | |
551 | case MFF_ICMPV6_TYPE: | |
552 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
553 | case MFF_ND_TARGET: |
554 | case MFF_ND_SLL: | |
555 | case MFF_ND_TLL: | |
556 | return true; | |
557 | ||
c61f3870 BP |
558 | case MFF_IN_PORT_OXM: |
559 | case MFF_ACTSET_OUTPUT: { | |
4e022ec0 | 560 | ofp_port_t port; |
72333065 JR |
561 | return !ofputil_port_from_ofp11(value->be32, &port); |
562 | } | |
563 | ||
530180fd | 564 | case MFF_IP_DSCP: |
7257b535 | 565 | return !(value->u8 & ~IP_DSCP_MASK); |
1638b906 BP |
566 | case MFF_IP_DSCP_SHIFTED: |
567 | return !(value->u8 & (~IP_DSCP_MASK >> 2)); | |
530180fd JP |
568 | case MFF_IP_ECN: |
569 | return !(value->u8 & ~IP_ECN_MASK); | |
7257b535 | 570 | case MFF_IP_FRAG: |
eadef313 | 571 | return !(value->u8 & ~FLOW_NW_FRAG_MASK); |
dc235f7f JR |
572 | case MFF_TCP_FLAGS: |
573 | return !(value->be16 & ~htons(0x0fff)); | |
6a885fd0 BP |
574 | |
575 | case MFF_ARP_OP: | |
576 | return !(value->be16 & htons(0xff00)); | |
577 | ||
441c57a9 | 578 | case MFF_DL_VLAN: |
6a885fd0 | 579 | return !(value->be16 & htons(VLAN_CFI | VLAN_PCP_MASK)); |
cc34bc8c BP |
580 | case MFF_VLAN_VID: |
581 | return !(value->be16 & htons(VLAN_PCP_MASK)); | |
6a885fd0 | 582 | |
441c57a9 | 583 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 584 | case MFF_VLAN_PCP: |
24016f5a | 585 | return !(value->u8 & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)); |
6a885fd0 | 586 | |
fa8223b7 JP |
587 | case MFF_IPV6_LABEL: |
588 | return !(value->be32 & ~htonl(IPV6_LABEL_MASK)); | |
589 | ||
b02475c5 SH |
590 | case MFF_MPLS_LABEL: |
591 | return !(value->be32 & ~htonl(MPLS_LABEL_MASK >> MPLS_LABEL_SHIFT)); | |
592 | ||
593 | case MFF_MPLS_TC: | |
594 | return !(value->u8 & ~(MPLS_TC_MASK >> MPLS_TC_SHIFT)); | |
595 | ||
596 | case MFF_MPLS_BOS: | |
597 | return !(value->u8 & ~(MPLS_BOS_MASK >> MPLS_BOS_SHIFT)); | |
598 | ||
b666962b JG |
599 | case MFF_TUN_FLAGS: |
600 | return !(value->be16 & ~htons(FLOW_TNL_PUB_F_MASK)); | |
601 | ||
07659514 JS |
602 | case MFF_CT_STATE: |
603 | return !(value->be32 & ~htonl(CS_SUPPORTED_MASK)); | |
604 | ||
6a885fd0 BP |
605 | case MFF_N_IDS: |
606 | default: | |
428b2edd | 607 | OVS_NOT_REACHED(); |
6a885fd0 BP |
608 | } |
609 | } | |
610 | ||
611 | /* Copies the value of field 'mf' from 'flow' into 'value'. The caller is | |
612 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites. */ | |
613 | void | |
614 | mf_get_value(const struct mf_field *mf, const struct flow *flow, | |
615 | union mf_value *value) | |
616 | { | |
617 | switch (mf->id) { | |
a79f29f2 AZ |
618 | case MFF_DP_HASH: |
619 | value->be32 = htonl(flow->dp_hash); | |
620 | break; | |
621 | case MFF_RECIRC_ID: | |
622 | value->be32 = htonl(flow->recirc_id); | |
623 | break; | |
18080541 BP |
624 | case MFF_CONJ_ID: |
625 | value->be32 = htonl(flow->conj_id); | |
626 | break; | |
6a885fd0 | 627 | case MFF_TUN_ID: |
296e07ac | 628 | value->be64 = flow->tunnel.tun_id; |
6a885fd0 | 629 | break; |
4fe3445a PS |
630 | case MFF_TUN_SRC: |
631 | value->be32 = flow->tunnel.ip_src; | |
632 | break; | |
633 | case MFF_TUN_DST: | |
634 | value->be32 = flow->tunnel.ip_dst; | |
635 | break; | |
7dad8e9a TLSC |
636 | case MFF_TUN_IPV6_SRC: |
637 | value->ipv6 = flow->tunnel.ipv6_src; | |
638 | break; | |
639 | case MFF_TUN_IPV6_DST: | |
640 | value->ipv6 = flow->tunnel.ipv6_dst; | |
641 | break; | |
4fe3445a | 642 | case MFF_TUN_FLAGS: |
b666962b | 643 | value->be16 = htons(flow->tunnel.flags & FLOW_TNL_PUB_F_MASK); |
4fe3445a | 644 | break; |
ac6073e3 MC |
645 | case MFF_TUN_GBP_ID: |
646 | value->be16 = flow->tunnel.gbp_id; | |
647 | break; | |
648 | case MFF_TUN_GBP_FLAGS: | |
649 | value->u8 = flow->tunnel.gbp_flags; | |
650 | break; | |
4fe3445a PS |
651 | case MFF_TUN_TTL: |
652 | value->u8 = flow->tunnel.ip_ttl; | |
653 | break; | |
654 | case MFF_TUN_TOS: | |
655 | value->u8 = flow->tunnel.ip_tos; | |
656 | break; | |
9558d2a5 | 657 | CASE_MFF_TUN_METADATA: |
6728d578 | 658 | tun_metadata_read(&flow->tunnel, mf, value); |
9558d2a5 | 659 | break; |
4fe3445a | 660 | |
969fc56c JS |
661 | case MFF_METADATA: |
662 | value->be64 = flow->metadata; | |
663 | break; | |
6a885fd0 BP |
664 | |
665 | case MFF_IN_PORT: | |
4e022ec0 | 666 | value->be16 = htons(ofp_to_u16(flow->in_port.ofp_port)); |
6a885fd0 | 667 | break; |
72333065 | 668 | case MFF_IN_PORT_OXM: |
4e022ec0 | 669 | value->be32 = ofputil_port_to_ofp11(flow->in_port.ofp_port); |
72333065 | 670 | break; |
c61f3870 BP |
671 | case MFF_ACTSET_OUTPUT: |
672 | value->be32 = ofputil_port_to_ofp11(flow->actset_output); | |
673 | break; | |
72333065 | 674 | |
1b567fb9 | 675 | case MFF_SKB_PRIORITY: |
a81f0a44 | 676 | value->be32 = htonl(flow->skb_priority); |
1b567fb9 AA |
677 | break; |
678 | ||
1362e248 JG |
679 | case MFF_PKT_MARK: |
680 | value->be32 = htonl(flow->pkt_mark); | |
1b567fb9 AA |
681 | break; |
682 | ||
07659514 JS |
683 | case MFF_CT_STATE: |
684 | value->be32 = htonl(flow->ct_state); | |
685 | break; | |
686 | ||
687 | case MFF_CT_ZONE: | |
688 | value->be16 = htons(flow->ct_zone); | |
689 | break; | |
690 | ||
8e53fe8c JS |
691 | case MFF_CT_MARK: |
692 | value->be32 = htonl(flow->ct_mark); | |
693 | break; | |
694 | ||
9daf2348 | 695 | case MFF_CT_LABEL: |
32ea15f6 | 696 | value->be128 = hton128(flow->ct_label); |
9daf2348 JS |
697 | break; |
698 | ||
0d7e2fe4 | 699 | CASE_MFF_REGS: |
2f98b0b7 | 700 | value->be32 = htonl(flow->regs[mf->id - MFF_REG0]); |
6a885fd0 BP |
701 | break; |
702 | ||
79fe0f46 BP |
703 | CASE_MFF_XREGS: |
704 | value->be64 = htonll(flow_get_xreg(flow, mf->id - MFF_XREG0)); | |
705 | break; | |
706 | ||
6a885fd0 | 707 | case MFF_ETH_SRC: |
74ff3298 | 708 | value->mac = flow->dl_src; |
6a885fd0 BP |
709 | break; |
710 | ||
711 | case MFF_ETH_DST: | |
74ff3298 | 712 | value->mac = flow->dl_dst; |
6a885fd0 BP |
713 | break; |
714 | ||
715 | case MFF_ETH_TYPE: | |
716 | value->be16 = flow->dl_type; | |
717 | break; | |
718 | ||
719 | case MFF_VLAN_TCI: | |
720 | value->be16 = flow->vlan_tci; | |
721 | break; | |
722 | ||
441c57a9 | 723 | case MFF_DL_VLAN: |
6a885fd0 BP |
724 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK); |
725 | break; | |
cc34bc8c BP |
726 | case MFF_VLAN_VID: |
727 | value->be16 = flow->vlan_tci & htons(VLAN_VID_MASK | VLAN_CFI); | |
728 | break; | |
6a885fd0 | 729 | |
441c57a9 | 730 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 731 | case MFF_VLAN_PCP: |
6a885fd0 BP |
732 | value->u8 = vlan_tci_to_pcp(flow->vlan_tci); |
733 | break; | |
734 | ||
b02475c5 | 735 | case MFF_MPLS_LABEL: |
8bfd0fda | 736 | value->be32 = htonl(mpls_lse_to_label(flow->mpls_lse[0])); |
b02475c5 SH |
737 | break; |
738 | ||
739 | case MFF_MPLS_TC: | |
8bfd0fda | 740 | value->u8 = mpls_lse_to_tc(flow->mpls_lse[0]); |
b02475c5 SH |
741 | break; |
742 | ||
743 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
744 | value->u8 = mpls_lse_to_bos(flow->mpls_lse[0]); |
745 | break; | |
b02475c5 | 746 | |
bef3f465 BP |
747 | case MFF_MPLS_TTL: |
748 | value->u8 = mpls_lse_to_ttl(flow->mpls_lse[0]); | |
749 | break; | |
750 | ||
6a885fd0 BP |
751 | case MFF_IPV4_SRC: |
752 | value->be32 = flow->nw_src; | |
753 | break; | |
754 | ||
755 | case MFF_IPV4_DST: | |
756 | value->be32 = flow->nw_dst; | |
757 | break; | |
758 | ||
759 | case MFF_IPV6_SRC: | |
760 | value->ipv6 = flow->ipv6_src; | |
761 | break; | |
762 | ||
763 | case MFF_IPV6_DST: | |
764 | value->ipv6 = flow->ipv6_dst; | |
765 | break; | |
766 | ||
fa8223b7 JP |
767 | case MFF_IPV6_LABEL: |
768 | value->be32 = flow->ipv6_label; | |
769 | break; | |
770 | ||
6a885fd0 BP |
771 | case MFF_IP_PROTO: |
772 | value->u8 = flow->nw_proto; | |
773 | break; | |
774 | ||
530180fd | 775 | case MFF_IP_DSCP: |
eadef313 | 776 | value->u8 = flow->nw_tos & IP_DSCP_MASK; |
7257b535 BP |
777 | break; |
778 | ||
1638b906 BP |
779 | case MFF_IP_DSCP_SHIFTED: |
780 | value->u8 = flow->nw_tos >> 2; | |
781 | break; | |
782 | ||
530180fd | 783 | case MFF_IP_ECN: |
eadef313 | 784 | value->u8 = flow->nw_tos & IP_ECN_MASK; |
530180fd JP |
785 | break; |
786 | ||
a61680c6 JP |
787 | case MFF_IP_TTL: |
788 | value->u8 = flow->nw_ttl; | |
789 | break; | |
790 | ||
7257b535 | 791 | case MFF_IP_FRAG: |
eadef313 | 792 | value->u8 = flow->nw_frag; |
6a885fd0 BP |
793 | break; |
794 | ||
795 | case MFF_ARP_OP: | |
796 | value->be16 = htons(flow->nw_proto); | |
797 | break; | |
798 | ||
799 | case MFF_ARP_SPA: | |
800 | value->be32 = flow->nw_src; | |
801 | break; | |
802 | ||
803 | case MFF_ARP_TPA: | |
804 | value->be32 = flow->nw_dst; | |
805 | break; | |
806 | ||
807 | case MFF_ARP_SHA: | |
808 | case MFF_ND_SLL: | |
74ff3298 | 809 | value->mac = flow->arp_sha; |
6a885fd0 BP |
810 | break; |
811 | ||
812 | case MFF_ARP_THA: | |
813 | case MFF_ND_TLL: | |
74ff3298 | 814 | value->mac = flow->arp_tha; |
6a885fd0 BP |
815 | break; |
816 | ||
817 | case MFF_TCP_SRC: | |
6a885fd0 | 818 | case MFF_UDP_SRC: |
0d56eaf2 | 819 | case MFF_SCTP_SRC: |
6a885fd0 BP |
820 | value->be16 = flow->tp_src; |
821 | break; | |
822 | ||
71baec06 | 823 | case MFF_TCP_DST: |
6a885fd0 | 824 | case MFF_UDP_DST: |
0d56eaf2 | 825 | case MFF_SCTP_DST: |
6a885fd0 BP |
826 | value->be16 = flow->tp_dst; |
827 | break; | |
828 | ||
dc235f7f JR |
829 | case MFF_TCP_FLAGS: |
830 | value->be16 = flow->tcp_flags; | |
831 | break; | |
832 | ||
268a95e0 BP |
833 | case MFF_ICMPV4_TYPE: |
834 | case MFF_ICMPV6_TYPE: | |
6a885fd0 BP |
835 | value->u8 = ntohs(flow->tp_src); |
836 | break; | |
837 | ||
268a95e0 BP |
838 | case MFF_ICMPV4_CODE: |
839 | case MFF_ICMPV6_CODE: | |
6a885fd0 BP |
840 | value->u8 = ntohs(flow->tp_dst); |
841 | break; | |
842 | ||
843 | case MFF_ND_TARGET: | |
844 | value->ipv6 = flow->nd_target; | |
845 | break; | |
846 | ||
847 | case MFF_N_IDS: | |
848 | default: | |
428b2edd | 849 | OVS_NOT_REACHED(); |
6a885fd0 BP |
850 | } |
851 | } | |
852 | ||
81a76618 BP |
853 | /* Makes 'match' match field 'mf' exactly, with the value matched taken from |
854 | * 'value'. The caller is responsible for ensuring that 'match' meets 'mf''s | |
4f7b100c JG |
855 | * prerequisites. |
856 | * | |
857 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
858 | * with the request or NULL if there is no error. The caller is reponsible | |
859 | * for freeing the string. */ | |
6a885fd0 BP |
860 | void |
861 | mf_set_value(const struct mf_field *mf, | |
4f7b100c | 862 | const union mf_value *value, struct match *match, char **err_str) |
6a885fd0 | 863 | { |
4f7b100c JG |
864 | if (err_str) { |
865 | *err_str = NULL; | |
866 | } | |
867 | ||
6a885fd0 | 868 | switch (mf->id) { |
a79f29f2 AZ |
869 | case MFF_DP_HASH: |
870 | match_set_dp_hash(match, ntohl(value->be32)); | |
871 | break; | |
872 | case MFF_RECIRC_ID: | |
873 | match_set_recirc_id(match, ntohl(value->be32)); | |
874 | break; | |
18080541 BP |
875 | case MFF_CONJ_ID: |
876 | match_set_conj_id(match, ntohl(value->be32)); | |
877 | break; | |
6a885fd0 | 878 | case MFF_TUN_ID: |
81a76618 | 879 | match_set_tun_id(match, value->be64); |
6a885fd0 | 880 | break; |
4fe3445a PS |
881 | case MFF_TUN_SRC: |
882 | match_set_tun_src(match, value->be32); | |
883 | break; | |
884 | case MFF_TUN_DST: | |
885 | match_set_tun_dst(match, value->be32); | |
886 | break; | |
7dad8e9a TLSC |
887 | case MFF_TUN_IPV6_SRC: |
888 | match_set_tun_ipv6_src(match, &value->ipv6); | |
889 | break; | |
890 | case MFF_TUN_IPV6_DST: | |
891 | match_set_tun_ipv6_dst(match, &value->ipv6); | |
892 | break; | |
4fe3445a PS |
893 | case MFF_TUN_FLAGS: |
894 | match_set_tun_flags(match, ntohs(value->be16)); | |
895 | break; | |
ac6073e3 MC |
896 | case MFF_TUN_GBP_ID: |
897 | match_set_tun_gbp_id(match, value->be16); | |
898 | break; | |
899 | case MFF_TUN_GBP_FLAGS: | |
900 | match_set_tun_gbp_flags(match, value->u8); | |
901 | break; | |
4fe3445a PS |
902 | case MFF_TUN_TOS: |
903 | match_set_tun_tos(match, value->u8); | |
904 | break; | |
905 | case MFF_TUN_TTL: | |
906 | match_set_tun_ttl(match, value->u8); | |
907 | break; | |
9558d2a5 | 908 | CASE_MFF_TUN_METADATA: |
4f7b100c | 909 | tun_metadata_set_match(mf, value, NULL, match, err_str); |
9558d2a5 | 910 | break; |
4fe3445a | 911 | |
969fc56c | 912 | case MFF_METADATA: |
81a76618 | 913 | match_set_metadata(match, value->be64); |
969fc56c | 914 | break; |
6a885fd0 BP |
915 | |
916 | case MFF_IN_PORT: | |
4e022ec0 | 917 | match_set_in_port(match, u16_to_ofp(ntohs(value->be16))); |
6a885fd0 BP |
918 | break; |
919 | ||
72333065 | 920 | case MFF_IN_PORT_OXM: { |
4e022ec0 | 921 | ofp_port_t port; |
bc146369 | 922 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
923 | match_set_in_port(match, port); |
924 | break; | |
925 | } | |
c61f3870 BP |
926 | case MFF_ACTSET_OUTPUT: { |
927 | ofp_port_t port; | |
928 | ofputil_port_from_ofp11(value->be32, &port); | |
929 | match_set_actset_output(match, port); | |
930 | break; | |
931 | } | |
72333065 | 932 | |
1b567fb9 AA |
933 | case MFF_SKB_PRIORITY: |
934 | match_set_skb_priority(match, ntohl(value->be32)); | |
935 | break; | |
936 | ||
1362e248 JG |
937 | case MFF_PKT_MARK: |
938 | match_set_pkt_mark(match, ntohl(value->be32)); | |
1b567fb9 AA |
939 | break; |
940 | ||
07659514 JS |
941 | case MFF_CT_STATE: |
942 | match_set_ct_state(match, ntohl(value->be32)); | |
943 | break; | |
944 | ||
945 | case MFF_CT_ZONE: | |
946 | match_set_ct_zone(match, ntohs(value->be16)); | |
947 | break; | |
948 | ||
8e53fe8c JS |
949 | case MFF_CT_MARK: |
950 | match_set_ct_mark(match, ntohl(value->be32)); | |
951 | break; | |
952 | ||
32ea15f6 JP |
953 | case MFF_CT_LABEL: |
954 | match_set_ct_label(match, ntoh128(value->be128)); | |
9daf2348 | 955 | break; |
9daf2348 | 956 | |
0d7e2fe4 | 957 | CASE_MFF_REGS: |
81a76618 | 958 | match_set_reg(match, mf->id - MFF_REG0, ntohl(value->be32)); |
6a885fd0 | 959 | break; |
6a885fd0 | 960 | |
79fe0f46 BP |
961 | CASE_MFF_XREGS: |
962 | match_set_xreg(match, mf->id - MFF_XREG0, ntohll(value->be64)); | |
963 | break; | |
964 | ||
6a885fd0 | 965 | case MFF_ETH_SRC: |
81a76618 | 966 | match_set_dl_src(match, value->mac); |
6a885fd0 BP |
967 | break; |
968 | ||
969 | case MFF_ETH_DST: | |
81a76618 | 970 | match_set_dl_dst(match, value->mac); |
6a885fd0 BP |
971 | break; |
972 | ||
973 | case MFF_ETH_TYPE: | |
81a76618 | 974 | match_set_dl_type(match, value->be16); |
6a885fd0 BP |
975 | break; |
976 | ||
977 | case MFF_VLAN_TCI: | |
81a76618 | 978 | match_set_dl_tci(match, value->be16); |
6a885fd0 BP |
979 | break; |
980 | ||
441c57a9 | 981 | case MFF_DL_VLAN: |
81a76618 | 982 | match_set_dl_vlan(match, value->be16); |
6a885fd0 | 983 | break; |
cc34bc8c | 984 | case MFF_VLAN_VID: |
81a76618 | 985 | match_set_vlan_vid(match, value->be16); |
cc34bc8c | 986 | break; |
6a885fd0 | 987 | |
441c57a9 | 988 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 989 | case MFF_VLAN_PCP: |
81a76618 | 990 | match_set_dl_vlan_pcp(match, value->u8); |
6a885fd0 BP |
991 | break; |
992 | ||
b02475c5 | 993 | case MFF_MPLS_LABEL: |
8bfd0fda | 994 | match_set_mpls_label(match, 0, value->be32); |
b02475c5 SH |
995 | break; |
996 | ||
997 | case MFF_MPLS_TC: | |
8bfd0fda | 998 | match_set_mpls_tc(match, 0, value->u8); |
b02475c5 SH |
999 | break; |
1000 | ||
1001 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1002 | match_set_mpls_bos(match, 0, value->u8); |
1003 | break; | |
b02475c5 | 1004 | |
bef3f465 BP |
1005 | case MFF_MPLS_TTL: |
1006 | match_set_mpls_ttl(match, 0, value->u8); | |
1007 | break; | |
1008 | ||
6a885fd0 | 1009 | case MFF_IPV4_SRC: |
81a76618 | 1010 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1011 | break; |
1012 | ||
1013 | case MFF_IPV4_DST: | |
81a76618 | 1014 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1015 | break; |
1016 | ||
1017 | case MFF_IPV6_SRC: | |
81a76618 | 1018 | match_set_ipv6_src(match, &value->ipv6); |
6a885fd0 BP |
1019 | break; |
1020 | ||
1021 | case MFF_IPV6_DST: | |
81a76618 | 1022 | match_set_ipv6_dst(match, &value->ipv6); |
6a885fd0 BP |
1023 | break; |
1024 | ||
fa8223b7 | 1025 | case MFF_IPV6_LABEL: |
81a76618 | 1026 | match_set_ipv6_label(match, value->be32); |
fa8223b7 JP |
1027 | break; |
1028 | ||
6a885fd0 | 1029 | case MFF_IP_PROTO: |
81a76618 | 1030 | match_set_nw_proto(match, value->u8); |
6a885fd0 BP |
1031 | break; |
1032 | ||
530180fd | 1033 | case MFF_IP_DSCP: |
81a76618 | 1034 | match_set_nw_dscp(match, value->u8); |
530180fd JP |
1035 | break; |
1036 | ||
1638b906 BP |
1037 | case MFF_IP_DSCP_SHIFTED: |
1038 | match_set_nw_dscp(match, value->u8 << 2); | |
1039 | break; | |
1040 | ||
530180fd | 1041 | case MFF_IP_ECN: |
81a76618 | 1042 | match_set_nw_ecn(match, value->u8); |
6a885fd0 BP |
1043 | break; |
1044 | ||
a61680c6 | 1045 | case MFF_IP_TTL: |
81a76618 | 1046 | match_set_nw_ttl(match, value->u8); |
a61680c6 JP |
1047 | break; |
1048 | ||
7257b535 | 1049 | case MFF_IP_FRAG: |
81a76618 | 1050 | match_set_nw_frag(match, value->u8); |
7257b535 BP |
1051 | break; |
1052 | ||
6a885fd0 | 1053 | case MFF_ARP_OP: |
81a76618 | 1054 | match_set_nw_proto(match, ntohs(value->be16)); |
6a885fd0 BP |
1055 | break; |
1056 | ||
1057 | case MFF_ARP_SPA: | |
81a76618 | 1058 | match_set_nw_src(match, value->be32); |
6a885fd0 BP |
1059 | break; |
1060 | ||
1061 | case MFF_ARP_TPA: | |
81a76618 | 1062 | match_set_nw_dst(match, value->be32); |
6a885fd0 BP |
1063 | break; |
1064 | ||
1065 | case MFF_ARP_SHA: | |
1066 | case MFF_ND_SLL: | |
81a76618 | 1067 | match_set_arp_sha(match, value->mac); |
6a885fd0 BP |
1068 | break; |
1069 | ||
1070 | case MFF_ARP_THA: | |
1071 | case MFF_ND_TLL: | |
81a76618 | 1072 | match_set_arp_tha(match, value->mac); |
6a885fd0 BP |
1073 | break; |
1074 | ||
1075 | case MFF_TCP_SRC: | |
6a885fd0 | 1076 | case MFF_UDP_SRC: |
0d56eaf2 | 1077 | case MFF_SCTP_SRC: |
81a76618 | 1078 | match_set_tp_src(match, value->be16); |
6a885fd0 BP |
1079 | break; |
1080 | ||
71baec06 | 1081 | case MFF_TCP_DST: |
6a885fd0 | 1082 | case MFF_UDP_DST: |
0d56eaf2 | 1083 | case MFF_SCTP_DST: |
81a76618 | 1084 | match_set_tp_dst(match, value->be16); |
6a885fd0 BP |
1085 | break; |
1086 | ||
dc235f7f JR |
1087 | case MFF_TCP_FLAGS: |
1088 | match_set_tcp_flags(match, value->be16); | |
1089 | break; | |
1090 | ||
268a95e0 BP |
1091 | case MFF_ICMPV4_TYPE: |
1092 | case MFF_ICMPV6_TYPE: | |
81a76618 | 1093 | match_set_icmp_type(match, value->u8); |
6a885fd0 BP |
1094 | break; |
1095 | ||
268a95e0 BP |
1096 | case MFF_ICMPV4_CODE: |
1097 | case MFF_ICMPV6_CODE: | |
81a76618 | 1098 | match_set_icmp_code(match, value->u8); |
6a885fd0 BP |
1099 | break; |
1100 | ||
1101 | case MFF_ND_TARGET: | |
81a76618 | 1102 | match_set_nd_target(match, &value->ipv6); |
6a885fd0 BP |
1103 | break; |
1104 | ||
1105 | case MFF_N_IDS: | |
1106 | default: | |
428b2edd | 1107 | OVS_NOT_REACHED(); |
6a885fd0 BP |
1108 | } |
1109 | } | |
1110 | ||
5a0a5702 GS |
1111 | /* Unwildcard 'mask' member field described by 'mf'. The caller is |
1112 | * responsible for ensuring that 'mask' meets 'mf''s prerequisites. */ | |
1113 | void | |
1114 | mf_mask_field(const struct mf_field *mf, struct flow *mask) | |
1115 | { | |
5a0a5702 GS |
1116 | /* For MFF_DL_VLAN, we cannot send a all 1's to flow_set_dl_vlan() |
1117 | * as that will be considered as OFP10_VLAN_NONE. So consider it as a | |
1118 | * special case. For the rest, calling mf_set_flow_value() is good | |
1119 | * enough. */ | |
1120 | if (mf->id == MFF_DL_VLAN) { | |
1121 | flow_set_dl_vlan(mask, htons(VLAN_VID_MASK)); | |
1122 | } else { | |
1123 | mf_set_flow_value(mf, &exact_match_mask, mask); | |
1124 | } | |
1125 | } | |
1126 | ||
4ede8c79 JG |
1127 | static int |
1128 | field_len(const struct mf_field *mf, const union mf_value *value_) | |
1129 | { | |
1130 | const uint8_t *value = &value_->u8; | |
1131 | int i; | |
1132 | ||
1133 | if (!mf->variable_len) { | |
1134 | return mf->n_bytes; | |
1135 | } | |
1136 | ||
1137 | if (!value) { | |
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | for (i = 0; i < mf->n_bytes; i++) { | |
1142 | if (value[i] != 0) { | |
1143 | break; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | return mf->n_bytes - i; | |
1148 | } | |
1149 | ||
1150 | /* Returns the effective length of the field. For fixed length fields, | |
1151 | * this is just the defined length. For variable length fields, it is | |
1152 | * the minimum size encoding that retains the same meaning (i.e. | |
1cb20095 JG |
1153 | * discarding leading zeros). |
1154 | * | |
1155 | * 'is_masked' returns (if non-NULL) whether the original contained | |
1156 | * a mask. Otherwise, a mask that is the same length as the value | |
1157 | * might be misinterpreted as an exact match. */ | |
4ede8c79 JG |
1158 | int |
1159 | mf_field_len(const struct mf_field *mf, const union mf_value *value, | |
1cb20095 | 1160 | const union mf_value *mask, bool *is_masked_) |
4ede8c79 JG |
1161 | { |
1162 | int len, mask_len; | |
1cb20095 | 1163 | bool is_masked = mask && !is_all_ones(mask, mf->n_bytes); |
4ede8c79 JG |
1164 | |
1165 | len = field_len(mf, value); | |
1cb20095 | 1166 | if (is_masked) { |
4ede8c79 JG |
1167 | mask_len = field_len(mf, mask); |
1168 | len = MAX(len, mask_len); | |
1169 | } | |
1170 | ||
1cb20095 JG |
1171 | if (is_masked_) { |
1172 | *is_masked_ = is_masked; | |
1173 | } | |
1174 | ||
4ede8c79 JG |
1175 | return len; |
1176 | } | |
1177 | ||
910fb1d8 JP |
1178 | /* Sets 'flow' member field described by 'mf' to 'value'. The caller is |
1179 | * responsible for ensuring that 'flow' meets 'mf''s prerequisites.*/ | |
28da1f8f BP |
1180 | void |
1181 | mf_set_flow_value(const struct mf_field *mf, | |
1182 | const union mf_value *value, struct flow *flow) | |
1183 | { | |
1184 | switch (mf->id) { | |
a79f29f2 AZ |
1185 | case MFF_DP_HASH: |
1186 | flow->dp_hash = ntohl(value->be32); | |
1187 | break; | |
1188 | case MFF_RECIRC_ID: | |
1189 | flow->recirc_id = ntohl(value->be32); | |
1190 | break; | |
18080541 BP |
1191 | case MFF_CONJ_ID: |
1192 | flow->conj_id = ntohl(value->be32); | |
1193 | break; | |
28da1f8f | 1194 | case MFF_TUN_ID: |
296e07ac | 1195 | flow->tunnel.tun_id = value->be64; |
28da1f8f | 1196 | break; |
4fe3445a PS |
1197 | case MFF_TUN_SRC: |
1198 | flow->tunnel.ip_src = value->be32; | |
1199 | break; | |
1200 | case MFF_TUN_DST: | |
1201 | flow->tunnel.ip_dst = value->be32; | |
1202 | break; | |
7dad8e9a TLSC |
1203 | case MFF_TUN_IPV6_SRC: |
1204 | flow->tunnel.ipv6_src = value->ipv6; | |
1205 | break; | |
1206 | case MFF_TUN_IPV6_DST: | |
1207 | flow->tunnel.ipv6_dst = value->ipv6; | |
1208 | break; | |
4fe3445a | 1209 | case MFF_TUN_FLAGS: |
b666962b JG |
1210 | flow->tunnel.flags = (flow->tunnel.flags & ~FLOW_TNL_PUB_F_MASK) | |
1211 | ntohs(value->be16); | |
4fe3445a | 1212 | break; |
ac6073e3 MC |
1213 | case MFF_TUN_GBP_ID: |
1214 | flow->tunnel.gbp_id = value->be16; | |
1215 | break; | |
1216 | case MFF_TUN_GBP_FLAGS: | |
1217 | flow->tunnel.gbp_flags = value->u8; | |
1218 | break; | |
4fe3445a PS |
1219 | case MFF_TUN_TOS: |
1220 | flow->tunnel.ip_tos = value->u8; | |
1221 | break; | |
1222 | case MFF_TUN_TTL: | |
1223 | flow->tunnel.ip_ttl = value->u8; | |
1224 | break; | |
9558d2a5 | 1225 | CASE_MFF_TUN_METADATA: |
6728d578 | 1226 | tun_metadata_write(&flow->tunnel, mf, value); |
1aaf0ada | 1227 | break; |
969fc56c JS |
1228 | case MFF_METADATA: |
1229 | flow->metadata = value->be64; | |
1230 | break; | |
28da1f8f BP |
1231 | |
1232 | case MFF_IN_PORT: | |
4e022ec0 | 1233 | flow->in_port.ofp_port = u16_to_ofp(ntohs(value->be16)); |
28da1f8f BP |
1234 | break; |
1235 | ||
c61f3870 BP |
1236 | case MFF_IN_PORT_OXM: |
1237 | ofputil_port_from_ofp11(value->be32, &flow->in_port.ofp_port); | |
1238 | break; | |
1239 | case MFF_ACTSET_OUTPUT: | |
1240 | ofputil_port_from_ofp11(value->be32, &flow->actset_output); | |
72333065 | 1241 | break; |
72333065 | 1242 | |
1b567fb9 AA |
1243 | case MFF_SKB_PRIORITY: |
1244 | flow->skb_priority = ntohl(value->be32); | |
1245 | break; | |
1246 | ||
1362e248 JG |
1247 | case MFF_PKT_MARK: |
1248 | flow->pkt_mark = ntohl(value->be32); | |
1b567fb9 AA |
1249 | break; |
1250 | ||
07659514 JS |
1251 | case MFF_CT_STATE: |
1252 | flow->ct_state = ntohl(value->be32); | |
1253 | break; | |
1254 | ||
1255 | case MFF_CT_ZONE: | |
1256 | flow->ct_zone = ntohs(value->be16); | |
1257 | break; | |
1258 | ||
8e53fe8c JS |
1259 | case MFF_CT_MARK: |
1260 | flow->ct_mark = ntohl(value->be32); | |
1261 | break; | |
1262 | ||
9daf2348 | 1263 | case MFF_CT_LABEL: |
32ea15f6 | 1264 | flow->ct_label = ntoh128(value->be128); |
9daf2348 JS |
1265 | break; |
1266 | ||
0d7e2fe4 | 1267 | CASE_MFF_REGS: |
28da1f8f BP |
1268 | flow->regs[mf->id - MFF_REG0] = ntohl(value->be32); |
1269 | break; | |
28da1f8f | 1270 | |
79fe0f46 BP |
1271 | CASE_MFF_XREGS: |
1272 | flow_set_xreg(flow, mf->id - MFF_XREG0, ntohll(value->be64)); | |
1273 | break; | |
1274 | ||
28da1f8f | 1275 | case MFF_ETH_SRC: |
74ff3298 | 1276 | flow->dl_src = value->mac; |
28da1f8f BP |
1277 | break; |
1278 | ||
1279 | case MFF_ETH_DST: | |
74ff3298 | 1280 | flow->dl_dst = value->mac; |
28da1f8f BP |
1281 | break; |
1282 | ||
1283 | case MFF_ETH_TYPE: | |
1284 | flow->dl_type = value->be16; | |
1285 | break; | |
1286 | ||
1287 | case MFF_VLAN_TCI: | |
1288 | flow->vlan_tci = value->be16; | |
1289 | break; | |
1290 | ||
441c57a9 | 1291 | case MFF_DL_VLAN: |
fb0451d9 | 1292 | flow_set_dl_vlan(flow, value->be16); |
28da1f8f | 1293 | break; |
cc34bc8c BP |
1294 | case MFF_VLAN_VID: |
1295 | flow_set_vlan_vid(flow, value->be16); | |
1296 | break; | |
28da1f8f | 1297 | |
441c57a9 | 1298 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1299 | case MFF_VLAN_PCP: |
28da1f8f BP |
1300 | flow_set_vlan_pcp(flow, value->u8); |
1301 | break; | |
1302 | ||
b02475c5 | 1303 | case MFF_MPLS_LABEL: |
8bfd0fda | 1304 | flow_set_mpls_label(flow, 0, value->be32); |
b02475c5 SH |
1305 | break; |
1306 | ||
1307 | case MFF_MPLS_TC: | |
8bfd0fda | 1308 | flow_set_mpls_tc(flow, 0, value->u8); |
b02475c5 SH |
1309 | break; |
1310 | ||
1311 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1312 | flow_set_mpls_bos(flow, 0, value->u8); |
1313 | break; | |
b02475c5 | 1314 | |
bef3f465 BP |
1315 | case MFF_MPLS_TTL: |
1316 | flow_set_mpls_ttl(flow, 0, value->u8); | |
1317 | break; | |
1318 | ||
28da1f8f BP |
1319 | case MFF_IPV4_SRC: |
1320 | flow->nw_src = value->be32; | |
1321 | break; | |
1322 | ||
1323 | case MFF_IPV4_DST: | |
1324 | flow->nw_dst = value->be32; | |
1325 | break; | |
1326 | ||
1327 | case MFF_IPV6_SRC: | |
1328 | flow->ipv6_src = value->ipv6; | |
1329 | break; | |
1330 | ||
1331 | case MFF_IPV6_DST: | |
1332 | flow->ipv6_dst = value->ipv6; | |
1333 | break; | |
1334 | ||
1335 | case MFF_IPV6_LABEL: | |
88cc95c1 | 1336 | flow->ipv6_label = value->be32 & htonl(IPV6_LABEL_MASK); |
28da1f8f BP |
1337 | break; |
1338 | ||
1339 | case MFF_IP_PROTO: | |
1340 | flow->nw_proto = value->u8; | |
1341 | break; | |
1342 | ||
1343 | case MFF_IP_DSCP: | |
1344 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1345 | flow->nw_tos |= value->u8 & IP_DSCP_MASK; | |
1346 | break; | |
1347 | ||
1638b906 BP |
1348 | case MFF_IP_DSCP_SHIFTED: |
1349 | flow->nw_tos &= ~IP_DSCP_MASK; | |
1350 | flow->nw_tos |= value->u8 << 2; | |
1351 | break; | |
1352 | ||
28da1f8f BP |
1353 | case MFF_IP_ECN: |
1354 | flow->nw_tos &= ~IP_ECN_MASK; | |
1355 | flow->nw_tos |= value->u8 & IP_ECN_MASK; | |
1356 | break; | |
1357 | ||
1358 | case MFF_IP_TTL: | |
1359 | flow->nw_ttl = value->u8; | |
1360 | break; | |
1361 | ||
1362 | case MFF_IP_FRAG: | |
c8abb8af | 1363 | flow->nw_frag = value->u8 & FLOW_NW_FRAG_MASK; |
28da1f8f BP |
1364 | break; |
1365 | ||
1366 | case MFF_ARP_OP: | |
1367 | flow->nw_proto = ntohs(value->be16); | |
1368 | break; | |
1369 | ||
1370 | case MFF_ARP_SPA: | |
1371 | flow->nw_src = value->be32; | |
1372 | break; | |
1373 | ||
1374 | case MFF_ARP_TPA: | |
1375 | flow->nw_dst = value->be32; | |
1376 | break; | |
1377 | ||
1378 | case MFF_ARP_SHA: | |
1379 | case MFF_ND_SLL: | |
74ff3298 | 1380 | flow->arp_sha = value->mac; |
28da1f8f BP |
1381 | break; |
1382 | ||
1383 | case MFF_ARP_THA: | |
1384 | case MFF_ND_TLL: | |
74ff3298 | 1385 | flow->arp_tha = value->mac; |
28da1f8f BP |
1386 | break; |
1387 | ||
1388 | case MFF_TCP_SRC: | |
1389 | case MFF_UDP_SRC: | |
0d56eaf2 | 1390 | case MFF_SCTP_SRC: |
28da1f8f BP |
1391 | flow->tp_src = value->be16; |
1392 | break; | |
1393 | ||
1394 | case MFF_TCP_DST: | |
1395 | case MFF_UDP_DST: | |
0d56eaf2 | 1396 | case MFF_SCTP_DST: |
28da1f8f BP |
1397 | flow->tp_dst = value->be16; |
1398 | break; | |
1399 | ||
dc235f7f JR |
1400 | case MFF_TCP_FLAGS: |
1401 | flow->tcp_flags = value->be16; | |
1402 | break; | |
1403 | ||
28da1f8f BP |
1404 | case MFF_ICMPV4_TYPE: |
1405 | case MFF_ICMPV6_TYPE: | |
1406 | flow->tp_src = htons(value->u8); | |
1407 | break; | |
1408 | ||
1409 | case MFF_ICMPV4_CODE: | |
1410 | case MFF_ICMPV6_CODE: | |
1411 | flow->tp_dst = htons(value->u8); | |
1412 | break; | |
1413 | ||
1414 | case MFF_ND_TARGET: | |
1415 | flow->nd_target = value->ipv6; | |
1416 | break; | |
1417 | ||
1418 | case MFF_N_IDS: | |
1419 | default: | |
428b2edd | 1420 | OVS_NOT_REACHED(); |
28da1f8f BP |
1421 | } |
1422 | } | |
1423 | ||
7eb4b1f1 BP |
1424 | /* Consider each of 'src', 'mask', and 'dst' as if they were arrays of 8*n |
1425 | * bits. Then, for each 0 <= i < 8 * n such that mask[i] == 1, sets dst[i] = | |
1426 | * src[i]. */ | |
1427 | static void | |
1428 | apply_mask(const uint8_t *src, const uint8_t *mask, uint8_t *dst, size_t n) | |
1429 | { | |
1430 | size_t i; | |
1431 | ||
1432 | for (i = 0; i < n; i++) { | |
1433 | dst[i] = (src[i] & mask[i]) | (dst[i] & ~mask[i]); | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | /* Sets 'flow' member field described by 'field' to 'value', except that bits | |
1438 | * for which 'mask' has a 0-bit keep their existing values. The caller is | |
1439 | * responsible for ensuring that 'flow' meets 'field''s prerequisites.*/ | |
1440 | void | |
1441 | mf_set_flow_value_masked(const struct mf_field *field, | |
1442 | const union mf_value *value, | |
1443 | const union mf_value *mask, | |
1444 | struct flow *flow) | |
1445 | { | |
1446 | union mf_value tmp; | |
1447 | ||
1448 | mf_get_value(field, flow, &tmp); | |
1449 | apply_mask((const uint8_t *) value, (const uint8_t *) mask, | |
1450 | (uint8_t *) &tmp, field->n_bytes); | |
1451 | mf_set_flow_value(field, &tmp, flow); | |
1452 | } | |
1453 | ||
1cb20095 JG |
1454 | bool |
1455 | mf_is_tun_metadata(const struct mf_field *mf) | |
1456 | { | |
1457 | return mf->id >= MFF_TUN_METADATA0 && | |
1458 | mf->id < MFF_TUN_METADATA0 + TUN_METADATA_NUM_OPTS; | |
1459 | } | |
1460 | ||
1461 | /* Returns true if 'mf' has previously been set in 'flow', false if | |
1462 | * it contains a non-default value. | |
ccbe50f8 BP |
1463 | * |
1464 | * The caller is responsible for ensuring that 'flow' meets 'mf''s | |
1465 | * prerequisites. */ | |
1466 | bool | |
1cb20095 | 1467 | mf_is_set(const struct mf_field *mf, const struct flow *flow) |
ccbe50f8 | 1468 | { |
1cb20095 JG |
1469 | if (!mf_is_tun_metadata(mf)) { |
1470 | union mf_value value; | |
ccbe50f8 | 1471 | |
1cb20095 JG |
1472 | mf_get_value(mf, flow, &value); |
1473 | return !is_all_zeros(&value, mf->n_bytes); | |
1474 | } else { | |
1475 | return ULLONG_GET(flow->tunnel.metadata.present.map, | |
1476 | mf->id - MFF_TUN_METADATA0); | |
1477 | } | |
ccbe50f8 BP |
1478 | } |
1479 | ||
81a76618 | 1480 | /* Makes 'match' wildcard field 'mf'. |
6a885fd0 | 1481 | * |
81a76618 | 1482 | * The caller is responsible for ensuring that 'match' meets 'mf''s |
4f7b100c JG |
1483 | * prerequisites. |
1484 | * | |
1485 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
1486 | * with the request or NULL if there is no error. The caller is reponsible | |
1487 | * for freeing the string. */ | |
6a885fd0 | 1488 | void |
4f7b100c | 1489 | mf_set_wild(const struct mf_field *mf, struct match *match, char **err_str) |
6a885fd0 | 1490 | { |
4f7b100c JG |
1491 | if (err_str) { |
1492 | *err_str = NULL; | |
1493 | } | |
1494 | ||
6a885fd0 | 1495 | switch (mf->id) { |
a79f29f2 AZ |
1496 | case MFF_DP_HASH: |
1497 | match->flow.dp_hash = 0; | |
1498 | match->wc.masks.dp_hash = 0; | |
1499 | break; | |
1500 | case MFF_RECIRC_ID: | |
1501 | match->flow.recirc_id = 0; | |
1502 | match->wc.masks.recirc_id = 0; | |
1503 | break; | |
18080541 BP |
1504 | case MFF_CONJ_ID: |
1505 | match->flow.conj_id = 0; | |
1506 | match->wc.masks.conj_id = 0; | |
1507 | break; | |
6a885fd0 | 1508 | case MFF_TUN_ID: |
81a76618 | 1509 | match_set_tun_id_masked(match, htonll(0), htonll(0)); |
6a885fd0 | 1510 | break; |
4fe3445a PS |
1511 | case MFF_TUN_SRC: |
1512 | match_set_tun_src_masked(match, htonl(0), htonl(0)); | |
1513 | break; | |
1514 | case MFF_TUN_DST: | |
1515 | match_set_tun_dst_masked(match, htonl(0), htonl(0)); | |
1516 | break; | |
7dad8e9a TLSC |
1517 | case MFF_TUN_IPV6_SRC: |
1518 | memset(&match->wc.masks.tunnel.ipv6_src, 0, | |
1519 | sizeof match->wc.masks.tunnel.ipv6_src); | |
1520 | memset(&match->flow.tunnel.ipv6_src, 0, | |
1521 | sizeof match->flow.tunnel.ipv6_src); | |
1522 | break; | |
1523 | case MFF_TUN_IPV6_DST: | |
1524 | memset(&match->wc.masks.tunnel.ipv6_dst, 0, | |
1525 | sizeof match->wc.masks.tunnel.ipv6_dst); | |
1526 | memset(&match->flow.tunnel.ipv6_dst, 0, | |
1527 | sizeof match->flow.tunnel.ipv6_dst); | |
1528 | break; | |
4fe3445a PS |
1529 | case MFF_TUN_FLAGS: |
1530 | match_set_tun_flags_masked(match, 0, 0); | |
1531 | break; | |
ac6073e3 MC |
1532 | case MFF_TUN_GBP_ID: |
1533 | match_set_tun_gbp_id_masked(match, 0, 0); | |
1534 | break; | |
1535 | case MFF_TUN_GBP_FLAGS: | |
1536 | match_set_tun_gbp_flags_masked(match, 0, 0); | |
1537 | break; | |
4fe3445a PS |
1538 | case MFF_TUN_TOS: |
1539 | match_set_tun_tos_masked(match, 0, 0); | |
1540 | break; | |
1541 | case MFF_TUN_TTL: | |
1542 | match_set_tun_ttl_masked(match, 0, 0); | |
1543 | break; | |
9558d2a5 | 1544 | CASE_MFF_TUN_METADATA: |
4f7b100c | 1545 | tun_metadata_set_match(mf, NULL, NULL, match, err_str); |
9558d2a5 | 1546 | break; |
4fe3445a | 1547 | |
969fc56c | 1548 | case MFF_METADATA: |
81a76618 | 1549 | match_set_metadata_masked(match, htonll(0), htonll(0)); |
801d2b2a | 1550 | break; |
6a885fd0 BP |
1551 | |
1552 | case MFF_IN_PORT: | |
72333065 | 1553 | case MFF_IN_PORT_OXM: |
4e022ec0 AW |
1554 | match->flow.in_port.ofp_port = 0; |
1555 | match->wc.masks.in_port.ofp_port = 0; | |
6a885fd0 | 1556 | break; |
c61f3870 BP |
1557 | case MFF_ACTSET_OUTPUT: |
1558 | match->flow.actset_output = 0; | |
1559 | match->wc.masks.actset_output = 0; | |
1560 | break; | |
6a885fd0 | 1561 | |
1b567fb9 AA |
1562 | case MFF_SKB_PRIORITY: |
1563 | match->flow.skb_priority = 0; | |
1564 | match->wc.masks.skb_priority = 0; | |
1565 | break; | |
1566 | ||
1362e248 JG |
1567 | case MFF_PKT_MARK: |
1568 | match->flow.pkt_mark = 0; | |
1569 | match->wc.masks.pkt_mark = 0; | |
1b567fb9 AA |
1570 | break; |
1571 | ||
07659514 JS |
1572 | case MFF_CT_STATE: |
1573 | match->flow.ct_state = 0; | |
1574 | match->wc.masks.ct_state = 0; | |
1575 | break; | |
1576 | ||
1577 | case MFF_CT_ZONE: | |
1578 | match->flow.ct_zone = 0; | |
1579 | match->wc.masks.ct_zone = 0; | |
1580 | break; | |
1581 | ||
8e53fe8c JS |
1582 | case MFF_CT_MARK: |
1583 | match->flow.ct_mark = 0; | |
1584 | match->wc.masks.ct_mark = 0; | |
1585 | break; | |
1586 | ||
9daf2348 JS |
1587 | case MFF_CT_LABEL: |
1588 | memset(&match->flow.ct_label, 0, sizeof(match->flow.ct_label)); | |
1589 | memset(&match->wc.masks.ct_label, 0, sizeof(match->wc.masks.ct_label)); | |
1590 | break; | |
1591 | ||
0d7e2fe4 | 1592 | CASE_MFF_REGS: |
81a76618 | 1593 | match_set_reg_masked(match, mf->id - MFF_REG0, 0, 0); |
e9358af6 | 1594 | break; |
6a885fd0 | 1595 | |
79fe0f46 BP |
1596 | CASE_MFF_XREGS: |
1597 | match_set_xreg_masked(match, mf->id - MFF_XREG0, 0, 0); | |
1598 | break; | |
1599 | ||
6a885fd0 | 1600 | case MFF_ETH_SRC: |
74ff3298 JR |
1601 | match->flow.dl_src = eth_addr_zero; |
1602 | match->wc.masks.dl_src = eth_addr_zero; | |
6a885fd0 BP |
1603 | break; |
1604 | ||
1605 | case MFF_ETH_DST: | |
74ff3298 JR |
1606 | match->flow.dl_dst = eth_addr_zero; |
1607 | match->wc.masks.dl_dst = eth_addr_zero; | |
6a885fd0 BP |
1608 | break; |
1609 | ||
1610 | case MFF_ETH_TYPE: | |
81a76618 BP |
1611 | match->flow.dl_type = htons(0); |
1612 | match->wc.masks.dl_type = htons(0); | |
6a885fd0 BP |
1613 | break; |
1614 | ||
1615 | case MFF_VLAN_TCI: | |
81a76618 | 1616 | match_set_dl_tci_masked(match, htons(0), htons(0)); |
6a885fd0 BP |
1617 | break; |
1618 | ||
441c57a9 | 1619 | case MFF_DL_VLAN: |
cc34bc8c | 1620 | case MFF_VLAN_VID: |
81a76618 | 1621 | match_set_any_vid(match); |
6a885fd0 BP |
1622 | break; |
1623 | ||
441c57a9 | 1624 | case MFF_DL_VLAN_PCP: |
cc34bc8c | 1625 | case MFF_VLAN_PCP: |
81a76618 | 1626 | match_set_any_pcp(match); |
6a885fd0 BP |
1627 | break; |
1628 | ||
b02475c5 | 1629 | case MFF_MPLS_LABEL: |
8bfd0fda | 1630 | match_set_any_mpls_label(match, 0); |
b02475c5 SH |
1631 | break; |
1632 | ||
1633 | case MFF_MPLS_TC: | |
8bfd0fda | 1634 | match_set_any_mpls_tc(match, 0); |
b02475c5 SH |
1635 | break; |
1636 | ||
1637 | case MFF_MPLS_BOS: | |
8bfd0fda BP |
1638 | match_set_any_mpls_bos(match, 0); |
1639 | break; | |
b02475c5 | 1640 | |
bef3f465 BP |
1641 | case MFF_MPLS_TTL: |
1642 | match_set_any_mpls_ttl(match, 0); | |
1643 | break; | |
1644 | ||
6a885fd0 BP |
1645 | case MFF_IPV4_SRC: |
1646 | case MFF_ARP_SPA: | |
81a76618 | 1647 | match_set_nw_src_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1648 | break; |
1649 | ||
1650 | case MFF_IPV4_DST: | |
1651 | case MFF_ARP_TPA: | |
81a76618 | 1652 | match_set_nw_dst_masked(match, htonl(0), htonl(0)); |
6a885fd0 BP |
1653 | break; |
1654 | ||
1655 | case MFF_IPV6_SRC: | |
81a76618 BP |
1656 | memset(&match->wc.masks.ipv6_src, 0, sizeof match->wc.masks.ipv6_src); |
1657 | memset(&match->flow.ipv6_src, 0, sizeof match->flow.ipv6_src); | |
6a885fd0 BP |
1658 | break; |
1659 | ||
1660 | case MFF_IPV6_DST: | |
81a76618 BP |
1661 | memset(&match->wc.masks.ipv6_dst, 0, sizeof match->wc.masks.ipv6_dst); |
1662 | memset(&match->flow.ipv6_dst, 0, sizeof match->flow.ipv6_dst); | |
6a885fd0 BP |
1663 | break; |
1664 | ||
fa8223b7 | 1665 | case MFF_IPV6_LABEL: |
81a76618 BP |
1666 | match->wc.masks.ipv6_label = htonl(0); |
1667 | match->flow.ipv6_label = htonl(0); | |
fa8223b7 JP |
1668 | break; |
1669 | ||
6a885fd0 | 1670 | case MFF_IP_PROTO: |
81a76618 BP |
1671 | match->wc.masks.nw_proto = 0; |
1672 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1673 | break; |
1674 | ||
530180fd | 1675 | case MFF_IP_DSCP: |
1638b906 | 1676 | case MFF_IP_DSCP_SHIFTED: |
81a76618 BP |
1677 | match->wc.masks.nw_tos &= ~IP_DSCP_MASK; |
1678 | match->flow.nw_tos &= ~IP_DSCP_MASK; | |
7257b535 BP |
1679 | break; |
1680 | ||
530180fd | 1681 | case MFF_IP_ECN: |
81a76618 BP |
1682 | match->wc.masks.nw_tos &= ~IP_ECN_MASK; |
1683 | match->flow.nw_tos &= ~IP_ECN_MASK; | |
530180fd JP |
1684 | break; |
1685 | ||
a61680c6 | 1686 | case MFF_IP_TTL: |
81a76618 BP |
1687 | match->wc.masks.nw_ttl = 0; |
1688 | match->flow.nw_ttl = 0; | |
a61680c6 JP |
1689 | break; |
1690 | ||
7257b535 | 1691 | case MFF_IP_FRAG: |
6ca49d5e | 1692 | match->wc.masks.nw_frag &= ~FLOW_NW_FRAG_MASK; |
81a76618 | 1693 | match->flow.nw_frag &= ~FLOW_NW_FRAG_MASK; |
6a885fd0 BP |
1694 | break; |
1695 | ||
1696 | case MFF_ARP_OP: | |
81a76618 BP |
1697 | match->wc.masks.nw_proto = 0; |
1698 | match->flow.nw_proto = 0; | |
6a885fd0 BP |
1699 | break; |
1700 | ||
1701 | case MFF_ARP_SHA: | |
1702 | case MFF_ND_SLL: | |
74ff3298 JR |
1703 | match->flow.arp_sha = eth_addr_zero; |
1704 | match->wc.masks.arp_sha = eth_addr_zero; | |
6a885fd0 BP |
1705 | break; |
1706 | ||
1707 | case MFF_ARP_THA: | |
1708 | case MFF_ND_TLL: | |
74ff3298 JR |
1709 | match->flow.arp_tha = eth_addr_zero; |
1710 | match->wc.masks.arp_tha = eth_addr_zero; | |
6a885fd0 BP |
1711 | break; |
1712 | ||
1713 | case MFF_TCP_SRC: | |
1714 | case MFF_UDP_SRC: | |
0d56eaf2 | 1715 | case MFF_SCTP_SRC: |
268a95e0 BP |
1716 | case MFF_ICMPV4_TYPE: |
1717 | case MFF_ICMPV6_TYPE: | |
81a76618 BP |
1718 | match->wc.masks.tp_src = htons(0); |
1719 | match->flow.tp_src = htons(0); | |
6a885fd0 BP |
1720 | break; |
1721 | ||
1722 | case MFF_TCP_DST: | |
1723 | case MFF_UDP_DST: | |
0d56eaf2 | 1724 | case MFF_SCTP_DST: |
268a95e0 BP |
1725 | case MFF_ICMPV4_CODE: |
1726 | case MFF_ICMPV6_CODE: | |
81a76618 BP |
1727 | match->wc.masks.tp_dst = htons(0); |
1728 | match->flow.tp_dst = htons(0); | |
6a885fd0 BP |
1729 | break; |
1730 | ||
dc235f7f JR |
1731 | case MFF_TCP_FLAGS: |
1732 | match->wc.masks.tcp_flags = htons(0); | |
1733 | match->flow.tcp_flags = htons(0); | |
1734 | break; | |
1735 | ||
6a885fd0 | 1736 | case MFF_ND_TARGET: |
81a76618 BP |
1737 | memset(&match->wc.masks.nd_target, 0, |
1738 | sizeof match->wc.masks.nd_target); | |
1739 | memset(&match->flow.nd_target, 0, sizeof match->flow.nd_target); | |
6a885fd0 BP |
1740 | break; |
1741 | ||
1742 | case MFF_N_IDS: | |
1743 | default: | |
428b2edd | 1744 | OVS_NOT_REACHED(); |
6a885fd0 BP |
1745 | } |
1746 | } | |
1747 | ||
81a76618 | 1748 | /* Makes 'match' match field 'mf' with the specified 'value' and 'mask'. |
6a885fd0 BP |
1749 | * 'value' specifies a value to match and 'mask' specifies a wildcard pattern, |
1750 | * with a 1-bit indicating that the corresponding value bit must match and a | |
1751 | * 0-bit indicating a don't-care. | |
1752 | * | |
1753 | * If 'mask' is NULL or points to all-1-bits, then this call is equivalent to | |
81a76618 BP |
1754 | * mf_set_value(mf, value, match). If 'mask' points to all-0-bits, then this |
1755 | * call is equivalent to mf_set_wild(mf, match). | |
6a885fd0 BP |
1756 | * |
1757 | * 'mask' must be a valid mask for 'mf' (see mf_is_mask_valid()). The caller | |
4f7b100c JG |
1758 | * is responsible for ensuring that 'match' meets 'mf''s prerequisites. |
1759 | * | |
1760 | * If non-NULL, 'err_str' returns a malloc'ed string describing any errors | |
1761 | * with the request or NULL if there is no error. The caller is reponsible | |
1fd58977 JR |
1762 | * for freeing the string. |
1763 | * | |
1764 | * Return a set of enum ofputil_protocol bits (as an uint32_t to avoid circular | |
1765 | * dependency on enum ofputil_protocol definition) indicating which OpenFlow | |
1766 | * protocol versions can support this functionality. */ | |
1767 | uint32_t | |
6a885fd0 BP |
1768 | mf_set(const struct mf_field *mf, |
1769 | const union mf_value *value, const union mf_value *mask, | |
4f7b100c | 1770 | struct match *match, char **err_str) |
6a885fd0 | 1771 | { |
53cb9c3e | 1772 | if (!mask || is_all_ones(mask, mf->n_bytes)) { |
4f7b100c | 1773 | mf_set_value(mf, value, match, err_str); |
a4ce8b25 | 1774 | return mf->usable_protocols_exact; |
1cb20095 JG |
1775 | } else if (is_all_zeros(mask, mf->n_bytes) && !mf_is_tun_metadata(mf)) { |
1776 | /* Tunnel metadata matches on the existence of the field itself, so | |
1777 | * it still needs to be encoded even if the value is wildcarded. */ | |
4f7b100c | 1778 | mf_set_wild(mf, match, err_str); |
db0b6c29 | 1779 | return OFPUTIL_P_ANY; |
6a885fd0 BP |
1780 | } |
1781 | ||
4f7b100c JG |
1782 | if (err_str) { |
1783 | *err_str = NULL; | |
1784 | } | |
1785 | ||
6a885fd0 | 1786 | switch (mf->id) { |
07659514 | 1787 | case MFF_CT_ZONE: |
a79f29f2 | 1788 | case MFF_RECIRC_ID: |
18080541 | 1789 | case MFF_CONJ_ID: |
6a885fd0 | 1790 | case MFF_IN_PORT: |
72333065 | 1791 | case MFF_IN_PORT_OXM: |
c61f3870 | 1792 | case MFF_ACTSET_OUTPUT: |
1b567fb9 | 1793 | case MFF_SKB_PRIORITY: |
6a885fd0 | 1794 | case MFF_ETH_TYPE: |
441c57a9 BP |
1795 | case MFF_DL_VLAN: |
1796 | case MFF_DL_VLAN_PCP: | |
cc34bc8c | 1797 | case MFF_VLAN_PCP: |
b02475c5 SH |
1798 | case MFF_MPLS_LABEL: |
1799 | case MFF_MPLS_TC: | |
1800 | case MFF_MPLS_BOS: | |
bef3f465 | 1801 | case MFF_MPLS_TTL: |
6a885fd0 | 1802 | case MFF_IP_PROTO: |
a61680c6 | 1803 | case MFF_IP_TTL: |
530180fd | 1804 | case MFF_IP_DSCP: |
1638b906 | 1805 | case MFF_IP_DSCP_SHIFTED: |
530180fd | 1806 | case MFF_IP_ECN: |
6a885fd0 | 1807 | case MFF_ARP_OP: |
268a95e0 BP |
1808 | case MFF_ICMPV4_TYPE: |
1809 | case MFF_ICMPV4_CODE: | |
1810 | case MFF_ICMPV6_TYPE: | |
1811 | case MFF_ICMPV6_CODE: | |
af69bf19 | 1812 | return OFPUTIL_P_NONE; |
6a885fd0 | 1813 | |
a79f29f2 AZ |
1814 | case MFF_DP_HASH: |
1815 | match_set_dp_hash_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1816 | break; | |
6a885fd0 | 1817 | case MFF_TUN_ID: |
81a76618 | 1818 | match_set_tun_id_masked(match, value->be64, mask->be64); |
6a885fd0 | 1819 | break; |
4fe3445a PS |
1820 | case MFF_TUN_SRC: |
1821 | match_set_tun_src_masked(match, value->be32, mask->be32); | |
1822 | break; | |
1823 | case MFF_TUN_DST: | |
1824 | match_set_tun_dst_masked(match, value->be32, mask->be32); | |
1825 | break; | |
7dad8e9a TLSC |
1826 | case MFF_TUN_IPV6_SRC: |
1827 | match_set_tun_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); | |
1828 | break; | |
1829 | case MFF_TUN_IPV6_DST: | |
1830 | match_set_tun_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); | |
1831 | break; | |
4fe3445a PS |
1832 | case MFF_TUN_FLAGS: |
1833 | match_set_tun_flags_masked(match, ntohs(value->be16), ntohs(mask->be16)); | |
1834 | break; | |
ac6073e3 MC |
1835 | case MFF_TUN_GBP_ID: |
1836 | match_set_tun_gbp_id_masked(match, value->be16, mask->be16); | |
1837 | break; | |
1838 | case MFF_TUN_GBP_FLAGS: | |
1839 | match_set_tun_gbp_flags_masked(match, value->u8, mask->u8); | |
1840 | break; | |
4fe3445a PS |
1841 | case MFF_TUN_TTL: |
1842 | match_set_tun_ttl_masked(match, value->u8, mask->u8); | |
1843 | break; | |
1844 | case MFF_TUN_TOS: | |
1845 | match_set_tun_tos_masked(match, value->u8, mask->u8); | |
1846 | break; | |
9558d2a5 | 1847 | CASE_MFF_TUN_METADATA: |
4f7b100c | 1848 | tun_metadata_set_match(mf, value, mask, match, err_str); |
9558d2a5 | 1849 | break; |
4fe3445a | 1850 | |
969fc56c | 1851 | case MFF_METADATA: |
81a76618 | 1852 | match_set_metadata_masked(match, value->be64, mask->be64); |
969fc56c | 1853 | break; |
6a885fd0 | 1854 | |
0d7e2fe4 | 1855 | CASE_MFF_REGS: |
81a76618 BP |
1856 | match_set_reg_masked(match, mf->id - MFF_REG0, |
1857 | ntohl(value->be32), ntohl(mask->be32)); | |
6a885fd0 | 1858 | break; |
ac923e91 | 1859 | |
79fe0f46 BP |
1860 | CASE_MFF_XREGS: |
1861 | match_set_xreg_masked(match, mf->id - MFF_XREG0, | |
1862 | ntohll(value->be64), ntohll(mask->be64)); | |
1863 | break; | |
1864 | ||
ac923e91 JG |
1865 | case MFF_PKT_MARK: |
1866 | match_set_pkt_mark_masked(match, ntohl(value->be32), | |
1867 | ntohl(mask->be32)); | |
1868 | break; | |
6a885fd0 | 1869 | |
07659514 JS |
1870 | case MFF_CT_STATE: |
1871 | match_set_ct_state_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1872 | break; | |
1873 | ||
8e53fe8c JS |
1874 | case MFF_CT_MARK: |
1875 | match_set_ct_mark_masked(match, ntohl(value->be32), ntohl(mask->be32)); | |
1876 | break; | |
1877 | ||
32ea15f6 JP |
1878 | case MFF_CT_LABEL: |
1879 | match_set_ct_label_masked(match, ntoh128(value->be128), | |
1880 | mask ? ntoh128(mask->be128) : OVS_U128_MAX); | |
9daf2348 | 1881 | break; |
9daf2348 | 1882 | |
6a885fd0 | 1883 | case MFF_ETH_DST: |
81a76618 | 1884 | match_set_dl_dst_masked(match, value->mac, mask->mac); |
73c0ce34 JS |
1885 | break; |
1886 | ||
1887 | case MFF_ETH_SRC: | |
81a76618 | 1888 | match_set_dl_src_masked(match, value->mac, mask->mac); |
6a885fd0 BP |
1889 | break; |
1890 | ||
e878338b SH |
1891 | case MFF_ARP_SHA: |
1892 | case MFF_ND_SLL: | |
81a76618 | 1893 | match_set_arp_sha_masked(match, value->mac, mask->mac); |
e878338b SH |
1894 | break; |
1895 | ||
1896 | case MFF_ARP_THA: | |
1897 | case MFF_ND_TLL: | |
81a76618 | 1898 | match_set_arp_tha_masked(match, value->mac, mask->mac); |
e878338b SH |
1899 | break; |
1900 | ||
6a885fd0 | 1901 | case MFF_VLAN_TCI: |
81a76618 | 1902 | match_set_dl_tci_masked(match, value->be16, mask->be16); |
6a885fd0 BP |
1903 | break; |
1904 | ||
cc34bc8c | 1905 | case MFF_VLAN_VID: |
81a76618 | 1906 | match_set_vlan_vid_masked(match, value->be16, mask->be16); |
cc34bc8c BP |
1907 | break; |
1908 | ||
6a885fd0 | 1909 | case MFF_IPV4_SRC: |
81a76618 | 1910 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1911 | break; |
6a885fd0 BP |
1912 | |
1913 | case MFF_IPV4_DST: | |
81a76618 | 1914 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1915 | break; |
6a885fd0 BP |
1916 | |
1917 | case MFF_IPV6_SRC: | |
81a76618 | 1918 | match_set_ipv6_src_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1919 | break; |
1920 | ||
1921 | case MFF_IPV6_DST: | |
81a76618 | 1922 | match_set_ipv6_dst_masked(match, &value->ipv6, &mask->ipv6); |
6a885fd0 BP |
1923 | break; |
1924 | ||
32455024 SH |
1925 | case MFF_IPV6_LABEL: |
1926 | if ((mask->be32 & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)) { | |
4f7b100c | 1927 | mf_set_value(mf, value, match, err_str); |
32455024 | 1928 | } else { |
81a76618 | 1929 | match_set_ipv6_label_masked(match, value->be32, mask->be32); |
32455024 SH |
1930 | } |
1931 | break; | |
1932 | ||
47284b1f | 1933 | case MFF_ND_TARGET: |
81a76618 | 1934 | match_set_nd_target_masked(match, &value->ipv6, &mask->ipv6); |
47284b1f AA |
1935 | break; |
1936 | ||
7257b535 | 1937 | case MFF_IP_FRAG: |
81a76618 | 1938 | match_set_nw_frag_masked(match, value->u8, mask->u8); |
7257b535 BP |
1939 | break; |
1940 | ||
6a885fd0 | 1941 | case MFF_ARP_SPA: |
81a76618 | 1942 | match_set_nw_src_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1943 | break; |
6a885fd0 BP |
1944 | |
1945 | case MFF_ARP_TPA: | |
81a76618 | 1946 | match_set_nw_dst_masked(match, value->be32, mask->be32); |
a4ce8b25 | 1947 | break; |
6a885fd0 | 1948 | |
73f33563 BP |
1949 | case MFF_TCP_SRC: |
1950 | case MFF_UDP_SRC: | |
0d56eaf2 | 1951 | case MFF_SCTP_SRC: |
81a76618 | 1952 | match_set_tp_src_masked(match, value->be16, mask->be16); |
73f33563 BP |
1953 | break; |
1954 | ||
1955 | case MFF_TCP_DST: | |
1956 | case MFF_UDP_DST: | |
0d56eaf2 | 1957 | case MFF_SCTP_DST: |
81a76618 | 1958 | match_set_tp_dst_masked(match, value->be16, mask->be16); |
73f33563 BP |
1959 | break; |
1960 | ||
dc235f7f JR |
1961 | case MFF_TCP_FLAGS: |
1962 | match_set_tcp_flags_masked(match, value->be16, mask->be16); | |
1963 | break; | |
1964 | ||
6a885fd0 BP |
1965 | case MFF_N_IDS: |
1966 | default: | |
428b2edd | 1967 | OVS_NOT_REACHED(); |
6a885fd0 | 1968 | } |
db0b6c29 | 1969 | |
a4ce8b25 BP |
1970 | return ((mf->usable_protocols_bitwise == mf->usable_protocols_cidr |
1971 | || ip_is_cidr(mask->be32)) | |
1972 | ? mf->usable_protocols_cidr | |
1973 | : mf->usable_protocols_bitwise); | |
6a885fd0 BP |
1974 | } |
1975 | ||
816fd533 BP |
1976 | static enum ofperr |
1977 | mf_check__(const struct mf_subfield *sf, const struct flow *flow, | |
1978 | const char *type) | |
6a885fd0 | 1979 | { |
816fd533 BP |
1980 | if (!sf->field) { |
1981 | VLOG_WARN_RL(&rl, "unknown %s field", type); | |
9e404d1e | 1982 | return OFPERR_OFPBAC_BAD_SET_TYPE; |
816fd533 BP |
1983 | } else if (!sf->n_bits) { |
1984 | VLOG_WARN_RL(&rl, "zero bit %s field %s", type, sf->field->name); | |
9e404d1e | 1985 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
1986 | } else if (sf->ofs >= sf->field->n_bits) { |
1987 | VLOG_WARN_RL(&rl, "bit offset %d exceeds %d-bit width of %s field %s", | |
1988 | sf->ofs, sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 1989 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
1990 | } else if (sf->ofs + sf->n_bits > sf->field->n_bits) { |
1991 | VLOG_WARN_RL(&rl, "bit offset %d and width %d exceeds %d-bit width " | |
1992 | "of %s field %s", sf->ofs, sf->n_bits, | |
1993 | sf->field->n_bits, type, sf->field->name); | |
9e404d1e | 1994 | return OFPERR_OFPBAC_BAD_SET_LEN; |
816fd533 BP |
1995 | } else if (flow && !mf_are_prereqs_ok(sf->field, flow)) { |
1996 | VLOG_WARN_RL(&rl, "%s field %s lacks correct prerequisites", | |
1997 | type, sf->field->name); | |
9e404d1e | 1998 | return OFPERR_OFPBAC_MATCH_INCONSISTENT; |
6a885fd0 | 1999 | } else { |
816fd533 BP |
2000 | return 0; |
2001 | } | |
816fd533 | 2002 | } |
6a885fd0 | 2003 | |
816fd533 BP |
2004 | /* Checks whether 'sf' is valid for reading a subfield out of 'flow'. Returns |
2005 | * 0 if so, otherwise an OpenFlow error code (e.g. as returned by | |
2006 | * ofp_mkerr()). */ | |
2007 | enum ofperr | |
2008 | mf_check_src(const struct mf_subfield *sf, const struct flow *flow) | |
2009 | { | |
2010 | return mf_check__(sf, flow, "source"); | |
2011 | } | |
6a885fd0 | 2012 | |
816fd533 BP |
2013 | /* Checks whether 'sf' is valid for writing a subfield into 'flow'. Returns 0 |
2014 | * if so, otherwise an OpenFlow error code (e.g. as returned by | |
2015 | * ofp_mkerr()). */ | |
2016 | enum ofperr | |
2017 | mf_check_dst(const struct mf_subfield *sf, const struct flow *flow) | |
2018 | { | |
2019 | int error = mf_check__(sf, flow, "destination"); | |
2020 | if (!error && !sf->field->writable) { | |
2021 | VLOG_WARN_RL(&rl, "destination field %s is not writable", | |
2022 | sf->field->name); | |
9e404d1e | 2023 | return OFPERR_OFPBAC_BAD_SET_ARGUMENT; |
6a885fd0 | 2024 | } |
816fd533 | 2025 | return error; |
6a885fd0 BP |
2026 | } |
2027 | ||
81a76618 | 2028 | /* Copies the value and wildcard bit pattern for 'mf' from 'match' into the |
6a885fd0 BP |
2029 | * 'value' and 'mask', respectively. */ |
2030 | void | |
81a76618 | 2031 | mf_get(const struct mf_field *mf, const struct match *match, |
6a885fd0 BP |
2032 | union mf_value *value, union mf_value *mask) |
2033 | { | |
81a76618 BP |
2034 | mf_get_value(mf, &match->flow, value); |
2035 | mf_get_mask(mf, &match->wc, mask); | |
6a885fd0 BP |
2036 | } |
2037 | ||
6a885fd0 BP |
2038 | static char * |
2039 | mf_from_integer_string(const struct mf_field *mf, const char *s, | |
2040 | uint8_t *valuep, uint8_t *maskp) | |
2041 | { | |
6a885fd0 | 2042 | char *tail; |
1734bf29 JG |
2043 | const char *err_str = ""; |
2044 | int err; | |
6a885fd0 | 2045 | |
1734bf29 JG |
2046 | err = parse_int_string(s, valuep, mf->n_bytes, &tail); |
2047 | if (err || (*tail != '\0' && *tail != '/')) { | |
2048 | err_str = "value"; | |
6a885fd0 BP |
2049 | goto syntax_error; |
2050 | } | |
2051 | ||
2052 | if (*tail == '/') { | |
1734bf29 JG |
2053 | err = parse_int_string(tail + 1, maskp, mf->n_bytes, &tail); |
2054 | if (err || *tail != '\0') { | |
2055 | err_str = "mask"; | |
6a885fd0 BP |
2056 | goto syntax_error; |
2057 | } | |
2058 | } else { | |
1734bf29 | 2059 | memset(maskp, 0xff, mf->n_bytes); |
6a885fd0 BP |
2060 | } |
2061 | ||
6a885fd0 BP |
2062 | return NULL; |
2063 | ||
2064 | syntax_error: | |
1734bf29 JG |
2065 | if (err == ERANGE) { |
2066 | return xasprintf("%s: %s too large for %u-byte field %s", | |
2067 | s, err_str, mf->n_bytes, mf->name); | |
2068 | } else { | |
2069 | return xasprintf("%s: bad syntax for %s %s", s, mf->name, err_str); | |
2070 | } | |
6a885fd0 BP |
2071 | } |
2072 | ||
2073 | static char * | |
2074 | mf_from_ethernet_string(const struct mf_field *mf, const char *s, | |
74ff3298 | 2075 | struct eth_addr *mac, struct eth_addr *mask) |
6a885fd0 | 2076 | { |
279fb135 | 2077 | int n; |
6a885fd0 | 2078 | |
279fb135 | 2079 | ovs_assert(mf->n_bytes == ETH_ADDR_LEN); |
6a885fd0 | 2080 | |
279fb135 | 2081 | n = -1; |
74ff3298 | 2082 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(*mac), &n) |
279fb135 | 2083 | && n == strlen(s)) { |
74ff3298 | 2084 | *mask = eth_addr_exact; |
6a885fd0 | 2085 | return NULL; |
279fb135 | 2086 | } |
6a885fd0 | 2087 | |
279fb135 | 2088 | n = -1; |
c2c28dfd | 2089 | if (ovs_scan(s, ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT"%n", |
74ff3298 | 2090 | ETH_ADDR_SCAN_ARGS(*mac), ETH_ADDR_SCAN_ARGS(*mask), &n) |
279fb135 BP |
2091 | && n == strlen(s)) { |
2092 | return NULL; | |
6a885fd0 | 2093 | } |
279fb135 BP |
2094 | |
2095 | return xasprintf("%s: invalid Ethernet address", s); | |
6a885fd0 BP |
2096 | } |
2097 | ||
2098 | static char * | |
2099 | mf_from_ipv4_string(const struct mf_field *mf, const char *s, | |
2100 | ovs_be32 *ip, ovs_be32 *mask) | |
2101 | { | |
cb22974d | 2102 | ovs_assert(mf->n_bytes == sizeof *ip); |
61440451 | 2103 | return ip_parse_masked(s, ip, mask); |
6a885fd0 BP |
2104 | } |
2105 | ||
2106 | static char * | |
2107 | mf_from_ipv6_string(const struct mf_field *mf, const char *s, | |
10f61b6d | 2108 | struct in6_addr *ipv6, struct in6_addr *mask) |
6a885fd0 | 2109 | { |
10f61b6d JP |
2110 | ovs_assert(mf->n_bytes == sizeof *ipv6); |
2111 | return ipv6_parse_masked(s, ipv6, mask); | |
6a885fd0 BP |
2112 | } |
2113 | ||
2114 | static char * | |
2115 | mf_from_ofp_port_string(const struct mf_field *mf, const char *s, | |
2116 | ovs_be16 *valuep, ovs_be16 *maskp) | |
2117 | { | |
4e022ec0 | 2118 | ofp_port_t port; |
6a885fd0 | 2119 | |
cb22974d | 2120 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
33ab38d9 JR |
2121 | |
2122 | if (ofputil_port_from_string(s, &port)) { | |
4e022ec0 | 2123 | *valuep = htons(ofp_to_u16(port)); |
b8266395 | 2124 | *maskp = OVS_BE16_MAX; |
6a885fd0 | 2125 | return NULL; |
6a885fd0 | 2126 | } |
33ab38d9 | 2127 | return xasprintf("%s: port value out of range for %s", s, mf->name); |
6a885fd0 BP |
2128 | } |
2129 | ||
72333065 JR |
2130 | static char * |
2131 | mf_from_ofp_port_string32(const struct mf_field *mf, const char *s, | |
2132 | ovs_be32 *valuep, ovs_be32 *maskp) | |
2133 | { | |
4e022ec0 | 2134 | ofp_port_t port; |
72333065 JR |
2135 | |
2136 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2137 | if (ofputil_port_from_string(s, &port)) { | |
2138 | *valuep = ofputil_port_to_ofp11(port); | |
b8266395 | 2139 | *maskp = OVS_BE32_MAX; |
72333065 JR |
2140 | return NULL; |
2141 | } | |
2142 | return xasprintf("%s: port value out of range for %s", s, mf->name); | |
2143 | } | |
2144 | ||
7257b535 BP |
2145 | struct frag_handling { |
2146 | const char *name; | |
2147 | uint8_t mask; | |
2148 | uint8_t value; | |
2149 | }; | |
2150 | ||
2151 | static const struct frag_handling all_frags[] = { | |
eadef313 JP |
2152 | #define A FLOW_NW_FRAG_ANY |
2153 | #define L FLOW_NW_FRAG_LATER | |
7257b535 BP |
2154 | /* name mask value */ |
2155 | ||
2156 | { "no", A|L, 0 }, | |
2157 | { "first", A|L, A }, | |
2158 | { "later", A|L, A|L }, | |
2159 | ||
2160 | { "no", A, 0 }, | |
2161 | { "yes", A, A }, | |
2162 | ||
2163 | { "not_later", L, 0 }, | |
2164 | { "later", L, L }, | |
2165 | #undef A | |
2166 | #undef L | |
2167 | }; | |
2168 | ||
2169 | static char * | |
2170 | mf_from_frag_string(const char *s, uint8_t *valuep, uint8_t *maskp) | |
2171 | { | |
2172 | const struct frag_handling *h; | |
2173 | ||
2174 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2175 | if (!strcasecmp(s, h->name)) { | |
2176 | /* We force the upper bits of the mask on to make mf_parse_value() | |
2177 | * happy (otherwise it will never think it's an exact match.) */ | |
eadef313 | 2178 | *maskp = h->mask | ~FLOW_NW_FRAG_MASK; |
7257b535 BP |
2179 | *valuep = h->value; |
2180 | return NULL; | |
2181 | } | |
2182 | } | |
2183 | ||
2184 | return xasprintf("%s: unknown fragment type (valid types are \"no\", " | |
2185 | "\"yes\", \"first\", \"later\", \"not_first\"", s); | |
2186 | } | |
2187 | ||
8e4c1621 JG |
2188 | static char * |
2189 | parse_mf_flags(const char *s, const char *(*bit_to_string)(uint32_t), | |
2190 | const char *field_name, ovs_be16 *flagsp, ovs_be16 allowed, | |
2191 | ovs_be16 *maskp) | |
4fe3445a | 2192 | { |
8e4c1621 JG |
2193 | int err; |
2194 | char *err_str; | |
2195 | uint32_t flags, mask; | |
4fe3445a | 2196 | |
8e4c1621 JG |
2197 | err = parse_flags(s, bit_to_string, '\0', field_name, &err_str, |
2198 | &flags, ntohs(allowed), maskp ? &mask : NULL); | |
2199 | if (err < 0) { | |
2200 | return err_str; | |
2201 | } | |
4fe3445a | 2202 | |
8e4c1621 JG |
2203 | *flagsp = htons(flags); |
2204 | if (maskp) { | |
2205 | *maskp = htons(mask); | |
4fe3445a PS |
2206 | } |
2207 | ||
8e4c1621 | 2208 | return NULL; |
4fe3445a PS |
2209 | } |
2210 | ||
2211 | static char * | |
8e4c1621 | 2212 | mf_from_tcp_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
4fe3445a | 2213 | { |
8e4c1621 JG |
2214 | return parse_mf_flags(s, packet_tcp_flag_to_string, "TCP", flagsp, |
2215 | TCP_FLAGS_BE16(OVS_BE16_MAX), maskp); | |
4fe3445a PS |
2216 | } |
2217 | ||
61bf6666 | 2218 | static char * |
8e4c1621 | 2219 | mf_from_tun_flags_string(const char *s, ovs_be16 *flagsp, ovs_be16 *maskp) |
61bf6666 | 2220 | { |
8e4c1621 | 2221 | return parse_mf_flags(s, flow_tun_flag_to_string, "tunnel", flagsp, |
b666962b | 2222 | htons(FLOW_TNL_PUB_F_MASK), maskp); |
61bf6666 JR |
2223 | } |
2224 | ||
07659514 JS |
2225 | static char * |
2226 | mf_from_ct_state_string(const char *s, ovs_be32 *flagsp, ovs_be32 *maskp) | |
2227 | { | |
2228 | int err; | |
2229 | char *err_str; | |
2230 | uint32_t flags, mask; | |
2231 | ||
2232 | err = parse_flags(s, ct_state_to_string, '\0', "ct_state", &err_str, | |
2233 | &flags, CS_SUPPORTED_MASK, maskp ? &mask : NULL); | |
2234 | if (err < 0) { | |
2235 | return err_str; | |
2236 | } | |
2237 | ||
2238 | *flagsp = htonl(flags); | |
2239 | if (maskp) { | |
2240 | *maskp = htonl(mask); | |
2241 | } | |
2242 | ||
2243 | return NULL; | |
2244 | } | |
2245 | ||
6a885fd0 BP |
2246 | /* Parses 's', a string value for field 'mf', into 'value' and 'mask'. Returns |
2247 | * NULL if successful, otherwise a malloc()'d string describing the error. */ | |
2248 | char * | |
2249 | mf_parse(const struct mf_field *mf, const char *s, | |
2250 | union mf_value *value, union mf_value *mask) | |
2251 | { | |
3634dff8 BP |
2252 | char *error; |
2253 | ||
bedde04c | 2254 | if (!strcmp(s, "*")) { |
6a885fd0 BP |
2255 | memset(value, 0, mf->n_bytes); |
2256 | memset(mask, 0, mf->n_bytes); | |
2257 | return NULL; | |
2258 | } | |
2259 | ||
2260 | switch (mf->string) { | |
2261 | case MFS_DECIMAL: | |
2262 | case MFS_HEXADECIMAL: | |
3634dff8 BP |
2263 | error = mf_from_integer_string(mf, s, |
2264 | (uint8_t *) value, (uint8_t *) mask); | |
2265 | break; | |
6a885fd0 | 2266 | |
07659514 JS |
2267 | case MFS_CT_STATE: |
2268 | ovs_assert(mf->n_bytes == sizeof(ovs_be32)); | |
2269 | error = mf_from_ct_state_string(s, &value->be32, &mask->be32); | |
2270 | break; | |
2271 | ||
6a885fd0 | 2272 | case MFS_ETHERNET: |
74ff3298 | 2273 | error = mf_from_ethernet_string(mf, s, &value->mac, &mask->mac); |
3634dff8 | 2274 | break; |
6a885fd0 BP |
2275 | |
2276 | case MFS_IPV4: | |
3634dff8 BP |
2277 | error = mf_from_ipv4_string(mf, s, &value->be32, &mask->be32); |
2278 | break; | |
6a885fd0 BP |
2279 | |
2280 | case MFS_IPV6: | |
3634dff8 BP |
2281 | error = mf_from_ipv6_string(mf, s, &value->ipv6, &mask->ipv6); |
2282 | break; | |
6a885fd0 BP |
2283 | |
2284 | case MFS_OFP_PORT: | |
3634dff8 BP |
2285 | error = mf_from_ofp_port_string(mf, s, &value->be16, &mask->be16); |
2286 | break; | |
7257b535 | 2287 | |
72333065 | 2288 | case MFS_OFP_PORT_OXM: |
3634dff8 BP |
2289 | error = mf_from_ofp_port_string32(mf, s, &value->be32, &mask->be32); |
2290 | break; | |
72333065 | 2291 | |
7257b535 | 2292 | case MFS_FRAG: |
3634dff8 BP |
2293 | error = mf_from_frag_string(s, &value->u8, &mask->u8); |
2294 | break; | |
4fe3445a PS |
2295 | |
2296 | case MFS_TNL_FLAGS: | |
cb22974d | 2297 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); |
3634dff8 BP |
2298 | error = mf_from_tun_flags_string(s, &value->be16, &mask->be16); |
2299 | break; | |
2300 | ||
61bf6666 JR |
2301 | case MFS_TCP_FLAGS: |
2302 | ovs_assert(mf->n_bytes == sizeof(ovs_be16)); | |
2303 | error = mf_from_tcp_flags_string(s, &value->be16, &mask->be16); | |
2304 | break; | |
2305 | ||
3634dff8 | 2306 | default: |
428b2edd | 2307 | OVS_NOT_REACHED(); |
6a885fd0 | 2308 | } |
3634dff8 BP |
2309 | |
2310 | if (!error && !mf_is_mask_valid(mf, mask)) { | |
2311 | error = xasprintf("%s: invalid mask for field %s", s, mf->name); | |
2312 | } | |
2313 | return error; | |
6a885fd0 BP |
2314 | } |
2315 | ||
2316 | /* Parses 's', a string value for field 'mf', into 'value'. Returns NULL if | |
2317 | * successful, otherwise a malloc()'d string describing the error. */ | |
2318 | char * | |
2319 | mf_parse_value(const struct mf_field *mf, const char *s, union mf_value *value) | |
2320 | { | |
2321 | union mf_value mask; | |
2322 | char *error; | |
2323 | ||
2324 | error = mf_parse(mf, s, value, &mask); | |
2325 | if (error) { | |
2326 | return error; | |
2327 | } | |
2328 | ||
2329 | if (!is_all_ones((const uint8_t *) &mask, mf->n_bytes)) { | |
2330 | return xasprintf("%s: wildcards not allowed here", s); | |
2331 | } | |
2332 | return NULL; | |
2333 | } | |
2334 | ||
2335 | static void | |
2336 | mf_format_integer_string(const struct mf_field *mf, const uint8_t *valuep, | |
2337 | const uint8_t *maskp, struct ds *s) | |
2338 | { | |
6a885fd0 | 2339 | if (mf->string == MFS_HEXADECIMAL) { |
1734bf29 | 2340 | ds_put_hex(s, valuep, mf->n_bytes); |
6a885fd0 | 2341 | } else { |
1734bf29 JG |
2342 | unsigned long long int integer = 0; |
2343 | int i; | |
6a885fd0 | 2344 | |
1734bf29 | 2345 | ovs_assert(mf->n_bytes <= 8); |
6a885fd0 | 2346 | for (i = 0; i < mf->n_bytes; i++) { |
1734bf29 | 2347 | integer = (integer << 8) | valuep[i]; |
6a885fd0 | 2348 | } |
1734bf29 JG |
2349 | ds_put_format(s, "%lld", integer); |
2350 | } | |
6a885fd0 | 2351 | |
1734bf29 | 2352 | if (maskp) { |
6a885fd0 BP |
2353 | /* I guess we could write the mask in decimal for MFS_DECIMAL but I'm |
2354 | * not sure that that a bit-mask written in decimal is ever easier to | |
2355 | * understand than the same bit-mask written in hexadecimal. */ | |
1734bf29 JG |
2356 | ds_put_char(s, '/'); |
2357 | ds_put_hex(s, maskp, mf->n_bytes); | |
6a885fd0 BP |
2358 | } |
2359 | } | |
2360 | ||
7257b535 | 2361 | static void |
8f75dea3 | 2362 | mf_format_frag_string(uint8_t value, uint8_t mask, struct ds *s) |
7257b535 BP |
2363 | { |
2364 | const struct frag_handling *h; | |
7257b535 | 2365 | |
eadef313 | 2366 | mask &= FLOW_NW_FRAG_MASK; |
8f75dea3 | 2367 | value &= mask; |
7257b535 BP |
2368 | |
2369 | for (h = all_frags; h < &all_frags[ARRAY_SIZE(all_frags)]; h++) { | |
2370 | if (value == h->value && mask == h->mask) { | |
2371 | ds_put_cstr(s, h->name); | |
2372 | return; | |
2373 | } | |
2374 | } | |
2375 | ds_put_cstr(s, "<error>"); | |
2376 | } | |
2377 | ||
4fe3445a | 2378 | static void |
b666962b | 2379 | mf_format_tnl_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) |
4fe3445a | 2380 | { |
b666962b JG |
2381 | format_flags_masked(s, NULL, flow_tun_flag_to_string, ntohs(value), |
2382 | ntohs(mask) & FLOW_TNL_PUB_F_MASK, FLOW_TNL_PUB_F_MASK); | |
4fe3445a PS |
2383 | } |
2384 | ||
61bf6666 JR |
2385 | static void |
2386 | mf_format_tcp_flags_string(ovs_be16 value, ovs_be16 mask, struct ds *s) | |
2387 | { | |
2388 | format_flags_masked(s, NULL, packet_tcp_flag_to_string, ntohs(value), | |
8e4c1621 | 2389 | TCP_FLAGS(mask), TCP_FLAGS(OVS_BE16_MAX)); |
61bf6666 JR |
2390 | } |
2391 | ||
07659514 JS |
2392 | static void |
2393 | mf_format_ct_state_string(ovs_be32 value, ovs_be32 mask, struct ds *s) | |
2394 | { | |
2395 | format_flags_masked(s, NULL, ct_state_to_string, ntohl(value), | |
2396 | ntohl(mask), UINT16_MAX); | |
2397 | } | |
2398 | ||
6a885fd0 BP |
2399 | /* Appends to 's' a string representation of field 'mf' whose value is in |
2400 | * 'value' and 'mask'. 'mask' may be NULL to indicate an exact match. */ | |
2401 | void | |
2402 | mf_format(const struct mf_field *mf, | |
2403 | const union mf_value *value, const union mf_value *mask, | |
2404 | struct ds *s) | |
2405 | { | |
2406 | if (mask) { | |
53cb9c3e | 2407 | if (is_all_zeros(mask, mf->n_bytes)) { |
6a885fd0 BP |
2408 | ds_put_cstr(s, "ANY"); |
2409 | return; | |
53cb9c3e | 2410 | } else if (is_all_ones(mask, mf->n_bytes)) { |
6a885fd0 BP |
2411 | mask = NULL; |
2412 | } | |
2413 | } | |
2414 | ||
2415 | switch (mf->string) { | |
72333065 JR |
2416 | case MFS_OFP_PORT_OXM: |
2417 | if (!mask) { | |
4e022ec0 | 2418 | ofp_port_t port; |
bc146369 | 2419 | ofputil_port_from_ofp11(value->be32, &port); |
72333065 JR |
2420 | ofputil_format_port(port, s); |
2421 | break; | |
2422 | } | |
2423 | /* fall through */ | |
6a885fd0 BP |
2424 | case MFS_OFP_PORT: |
2425 | if (!mask) { | |
4e022ec0 | 2426 | ofputil_format_port(u16_to_ofp(ntohs(value->be16)), s); |
6a885fd0 BP |
2427 | break; |
2428 | } | |
2429 | /* fall through */ | |
2430 | case MFS_DECIMAL: | |
2431 | case MFS_HEXADECIMAL: | |
2432 | mf_format_integer_string(mf, (uint8_t *) value, (uint8_t *) mask, s); | |
2433 | break; | |
2434 | ||
07659514 JS |
2435 | case MFS_CT_STATE: |
2436 | mf_format_ct_state_string(value->be32, | |
2437 | mask ? mask->be32 : OVS_BE32_MAX, s); | |
2438 | break; | |
2439 | ||
6a885fd0 | 2440 | case MFS_ETHERNET: |
74ff3298 | 2441 | eth_format_masked(value->mac, mask ? &mask->mac : NULL, s); |
6a885fd0 BP |
2442 | break; |
2443 | ||
2444 | case MFS_IPV4: | |
b8266395 | 2445 | ip_format_masked(value->be32, mask ? mask->be32 : OVS_BE32_MAX, s); |
6a885fd0 BP |
2446 | break; |
2447 | ||
2448 | case MFS_IPV6: | |
ac6d120f | 2449 | ipv6_format_masked(&value->ipv6, mask ? &mask->ipv6 : NULL, s); |
6a885fd0 BP |
2450 | break; |
2451 | ||
7257b535 | 2452 | case MFS_FRAG: |
8f75dea3 | 2453 | mf_format_frag_string(value->u8, mask ? mask->u8 : UINT8_MAX, s); |
7257b535 BP |
2454 | break; |
2455 | ||
4fe3445a | 2456 | case MFS_TNL_FLAGS: |
b666962b JG |
2457 | mf_format_tnl_flags_string(value->be16, |
2458 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
4fe3445a PS |
2459 | break; |
2460 | ||
61bf6666 JR |
2461 | case MFS_TCP_FLAGS: |
2462 | mf_format_tcp_flags_string(value->be16, | |
2463 | mask ? mask->be16 : OVS_BE16_MAX, s); | |
2464 | break; | |
2465 | ||
6a885fd0 | 2466 | default: |
428b2edd | 2467 | OVS_NOT_REACHED(); |
6a885fd0 BP |
2468 | } |
2469 | } | |
816fd533 | 2470 | \f |
9bab681f IY |
2471 | /* Makes subfield 'sf' within 'flow' exactly match the 'sf->n_bits' |
2472 | * least-significant bits in 'x'. | |
2473 | */ | |
2474 | void | |
2475 | mf_write_subfield_flow(const struct mf_subfield *sf, | |
2476 | const union mf_subvalue *x, struct flow *flow) | |
2477 | { | |
2478 | const struct mf_field *field = sf->field; | |
2479 | union mf_value value; | |
2480 | ||
2481 | mf_get_value(field, flow, &value); | |
158edc8d | 2482 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, |
9bab681f IY |
2483 | sf->ofs, sf->n_bits); |
2484 | mf_set_flow_value(field, &value, flow); | |
2485 | } | |
2486 | ||
81a76618 | 2487 | /* Makes subfield 'sf' within 'match' exactly match the 'sf->n_bits' |
1b35df45 | 2488 | * least-significant bits in 'x'. |
615660a9 | 2489 | */ |
1b35df45 BP |
2490 | void |
2491 | mf_write_subfield(const struct mf_subfield *sf, const union mf_subvalue *x, | |
81a76618 | 2492 | struct match *match) |
1b35df45 BP |
2493 | { |
2494 | const struct mf_field *field = sf->field; | |
2495 | union mf_value value, mask; | |
2496 | ||
81a76618 | 2497 | mf_get(field, match, &value, &mask); |
1b35df45 BP |
2498 | bitwise_copy(x, sizeof *x, 0, &value, field->n_bytes, sf->ofs, sf->n_bits); |
2499 | bitwise_one ( &mask, field->n_bytes, sf->ofs, sf->n_bits); | |
4f7b100c | 2500 | mf_set(field, &value, &mask, match, NULL); |
1b35df45 BP |
2501 | } |
2502 | ||
35c1f798 BP |
2503 | /* 'v' and 'm' correspond to values of 'field'. This function copies them into |
2504 | * 'match' in the correspond positions. */ | |
2505 | void | |
2506 | mf_mask_subfield(const struct mf_field *field, | |
2507 | const union mf_subvalue *v, | |
2508 | const union mf_subvalue *m, | |
2509 | struct match *match) | |
2510 | { | |
2511 | union mf_value value, mask; | |
2512 | ||
2513 | mf_get(field, match, &value, &mask); | |
2514 | bitwise_copy(v, sizeof *v, 0, &value, field->n_bytes, 0, field->n_bits); | |
2515 | bitwise_copy(m, sizeof *m, 0, &mask, field->n_bytes, 0, field->n_bits); | |
4f7b100c | 2516 | mf_set(field, &value, &mask, match, NULL); |
35c1f798 BP |
2517 | } |
2518 | ||
1b35df45 BP |
2519 | /* Initializes 'x' to the value of 'sf' within 'flow'. 'sf' must be valid for |
2520 | * reading 'flow', e.g. as checked by mf_check_src(). */ | |
2521 | void | |
2522 | mf_read_subfield(const struct mf_subfield *sf, const struct flow *flow, | |
2523 | union mf_subvalue *x) | |
2524 | { | |
2525 | union mf_value value; | |
2526 | ||
2527 | mf_get_value(sf->field, flow, &value); | |
2528 | ||
2529 | memset(x, 0, sizeof *x); | |
2530 | bitwise_copy(&value, sf->field->n_bytes, sf->ofs, | |
2531 | x, sizeof *x, 0, | |
2532 | sf->n_bits); | |
2533 | } | |
2534 | ||
816fd533 BP |
2535 | /* Returns the value of 'sf' within 'flow'. 'sf' must be valid for reading |
2536 | * 'flow', e.g. as checked by mf_check_src() and sf->n_bits must be 64 or | |
2537 | * less. */ | |
2538 | uint64_t | |
2539 | mf_get_subfield(const struct mf_subfield *sf, const struct flow *flow) | |
2540 | { | |
2541 | union mf_value value; | |
2542 | ||
2543 | mf_get_value(sf->field, flow, &value); | |
2544 | return bitwise_get(&value, sf->field->n_bytes, sf->ofs, sf->n_bits); | |
2545 | } | |
2546 | ||
9bab681f IY |
2547 | void |
2548 | mf_format_subvalue(const union mf_subvalue *subvalue, struct ds *s) | |
2549 | { | |
e7ae59f9 | 2550 | ds_put_hex(s, subvalue->u8, sizeof subvalue->u8); |
9bab681f | 2551 | } |
bc65c25a SH |
2552 | |
2553 | void | |
2554 | field_array_set(enum mf_field_id id, const union mf_value *value, | |
2555 | struct field_array *fa) | |
2556 | { | |
2557 | ovs_assert(id < MFF_N_IDS); | |
2558 | bitmap_set1(fa->used.bm, id); | |
2559 | fa->value[id] = *value; | |
2560 | } |