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odp-util: Limit scope of vlan in format_odp_action().
[ovs.git] / lib / odp-util.c
1 /*
2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
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 #include <arpa/inet.h>
19 #include "odp-util.h"
20 #include <errno.h>
21 #include <inttypes.h>
22 #include <math.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
25 #include <stdlib.h>
26 #include <string.h>
27
28 #include "byte-order.h"
29 #include "coverage.h"
30 #include "dpif.h"
31 #include "dynamic-string.h"
32 #include "flow.h"
33 #include "netlink.h"
34 #include "ofpbuf.h"
35 #include "packets.h"
36 #include "simap.h"
37 #include "timeval.h"
38 #include "tun-metadata.h"
39 #include "unaligned.h"
40 #include "util.h"
41 #include "uuid.h"
42 #include "openvswitch/vlog.h"
43
44 VLOG_DEFINE_THIS_MODULE(odp_util);
45
46 /* The interface between userspace and kernel uses an "OVS_*" prefix.
47 * Since this is fairly non-specific for the OVS userspace components,
48 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
49 * interactions with the datapath.
50 */
51
52 /* The set of characters that may separate one action or one key attribute
53 * from another. */
54 static const char *delimiters = ", \t\r\n";
55 static const char *delimiters_end = ", \t\r\n)";
56
57 struct attr_len_tbl {
58 int len;
59 const struct attr_len_tbl *next;
60 int next_max;
61 };
62 #define ATTR_LEN_INVALID -1
63 #define ATTR_LEN_VARIABLE -2
64 #define ATTR_LEN_NESTED -3
65
66 static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
67 struct ofpbuf *, struct ofpbuf *);
68 static void format_odp_key_attr(const struct nlattr *a,
69 const struct nlattr *ma,
70 const struct hmap *portno_names, struct ds *ds,
71 bool verbose);
72
73 struct geneve_scan {
74 struct geneve_opt d[63];
75 int len;
76 };
77
78 static int scan_geneve(const char *s, struct geneve_scan *key,
79 struct geneve_scan *mask);
80 static void format_geneve_opts(const struct geneve_opt *opt,
81 const struct geneve_opt *mask, int opts_len,
82 struct ds *, bool verbose);
83
84 static struct nlattr *generate_all_wildcard_mask(const struct attr_len_tbl tbl[],
85 int max, struct ofpbuf *,
86 const struct nlattr *key);
87 static void format_u128(struct ds *ds, const ovs_u128 *value,
88 const ovs_u128 *mask, bool verbose);
89 static int scan_u128(const char *s, ovs_u128 *value, ovs_u128 *mask);
90
91 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
92 * 'type':
93 *
94 * - For an action whose argument has a fixed length, returned that
95 * nonnegative length in bytes.
96 *
97 * - For an action with a variable-length argument, returns ATTR_LEN_VARIABLE.
98 *
99 * - For an invalid 'type', returns ATTR_LEN_INVALID. */
100 static int
101 odp_action_len(uint16_t type)
102 {
103 if (type > OVS_ACTION_ATTR_MAX) {
104 return -1;
105 }
106
107 switch ((enum ovs_action_attr) type) {
108 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
109 case OVS_ACTION_ATTR_TUNNEL_PUSH: return ATTR_LEN_VARIABLE;
110 case OVS_ACTION_ATTR_TUNNEL_POP: return sizeof(uint32_t);
111 case OVS_ACTION_ATTR_USERSPACE: return ATTR_LEN_VARIABLE;
112 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
113 case OVS_ACTION_ATTR_POP_VLAN: return 0;
114 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
115 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
116 case OVS_ACTION_ATTR_RECIRC: return sizeof(uint32_t);
117 case OVS_ACTION_ATTR_HASH: return sizeof(struct ovs_action_hash);
118 case OVS_ACTION_ATTR_SET: return ATTR_LEN_VARIABLE;
119 case OVS_ACTION_ATTR_SET_MASKED: return ATTR_LEN_VARIABLE;
120 case OVS_ACTION_ATTR_SAMPLE: return ATTR_LEN_VARIABLE;
121 case OVS_ACTION_ATTR_CT: return ATTR_LEN_VARIABLE;
122
123 case OVS_ACTION_ATTR_UNSPEC:
124 case __OVS_ACTION_ATTR_MAX:
125 return ATTR_LEN_INVALID;
126 }
127
128 return ATTR_LEN_INVALID;
129 }
130
131 /* Returns a string form of 'attr'. The return value is either a statically
132 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
133 * should be at least OVS_KEY_ATTR_BUFSIZE. */
134 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
135 static const char *
136 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
137 {
138 switch (attr) {
139 case OVS_KEY_ATTR_UNSPEC: return "unspec";
140 case OVS_KEY_ATTR_ENCAP: return "encap";
141 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
142 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
143 case OVS_KEY_ATTR_CT_STATE: return "ct_state";
144 case OVS_KEY_ATTR_CT_ZONE: return "ct_zone";
145 case OVS_KEY_ATTR_CT_MARK: return "ct_mark";
146 case OVS_KEY_ATTR_CT_LABELS: return "ct_label";
147 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
148 case OVS_KEY_ATTR_IN_PORT: return "in_port";
149 case OVS_KEY_ATTR_ETHERNET: return "eth";
150 case OVS_KEY_ATTR_VLAN: return "vlan";
151 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
152 case OVS_KEY_ATTR_IPV4: return "ipv4";
153 case OVS_KEY_ATTR_IPV6: return "ipv6";
154 case OVS_KEY_ATTR_TCP: return "tcp";
155 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
156 case OVS_KEY_ATTR_UDP: return "udp";
157 case OVS_KEY_ATTR_SCTP: return "sctp";
158 case OVS_KEY_ATTR_ICMP: return "icmp";
159 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
160 case OVS_KEY_ATTR_ARP: return "arp";
161 case OVS_KEY_ATTR_ND: return "nd";
162 case OVS_KEY_ATTR_MPLS: return "mpls";
163 case OVS_KEY_ATTR_DP_HASH: return "dp_hash";
164 case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id";
165
166 case __OVS_KEY_ATTR_MAX:
167 default:
168 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
169 return namebuf;
170 }
171 }
172
173 static void
174 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
175 {
176 size_t len = nl_attr_get_size(a);
177
178 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
179 if (len) {
180 const uint8_t *unspec;
181 unsigned int i;
182
183 unspec = nl_attr_get(a);
184 for (i = 0; i < len; i++) {
185 ds_put_char(ds, i ? ' ': '(');
186 ds_put_format(ds, "%02x", unspec[i]);
187 }
188 ds_put_char(ds, ')');
189 }
190 }
191
192 static void
193 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
194 {
195 static const struct nl_policy ovs_sample_policy[] = {
196 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
197 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
198 };
199 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
200 double percentage;
201 const struct nlattr *nla_acts;
202 int len;
203
204 ds_put_cstr(ds, "sample");
205
206 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
207 ds_put_cstr(ds, "(error)");
208 return;
209 }
210
211 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
212 UINT32_MAX;
213
214 ds_put_format(ds, "(sample=%.1f%%,", percentage);
215
216 ds_put_cstr(ds, "actions(");
217 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
218 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
219 format_odp_actions(ds, nla_acts, len);
220 ds_put_format(ds, "))");
221 }
222
223 static const char *
224 slow_path_reason_to_string(uint32_t reason)
225 {
226 switch ((enum slow_path_reason) reason) {
227 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
228 SLOW_PATH_REASONS
229 #undef SPR
230 }
231
232 return NULL;
233 }
234
235 const char *
236 slow_path_reason_to_explanation(enum slow_path_reason reason)
237 {
238 switch (reason) {
239 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
240 SLOW_PATH_REASONS
241 #undef SPR
242 }
243
244 return "<unknown>";
245 }
246
247 static int
248 parse_odp_flags(const char *s, const char *(*bit_to_string)(uint32_t),
249 uint32_t *res_flags, uint32_t allowed, uint32_t *res_mask)
250 {
251 return parse_flags(s, bit_to_string, ')', NULL, NULL,
252 res_flags, allowed, res_mask);
253 }
254
255 static void
256 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
257 {
258 static const struct nl_policy ovs_userspace_policy[] = {
259 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
260 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
261 .optional = true },
262 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
263 .optional = true },
264 [OVS_USERSPACE_ATTR_ACTIONS] = { .type = NL_A_UNSPEC,
265 .optional = true },
266 };
267 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
268 const struct nlattr *userdata_attr;
269 const struct nlattr *tunnel_out_port_attr;
270
271 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
272 ds_put_cstr(ds, "userspace(error)");
273 return;
274 }
275
276 ds_put_format(ds, "userspace(pid=%"PRIu32,
277 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
278
279 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
280
281 if (userdata_attr) {
282 const uint8_t *userdata = nl_attr_get(userdata_attr);
283 size_t userdata_len = nl_attr_get_size(userdata_attr);
284 bool userdata_unspec = true;
285 union user_action_cookie cookie;
286
287 if (userdata_len >= sizeof cookie.type
288 && userdata_len <= sizeof cookie) {
289
290 memset(&cookie, 0, sizeof cookie);
291 memcpy(&cookie, userdata, userdata_len);
292
293 userdata_unspec = false;
294
295 if (userdata_len == sizeof cookie.sflow
296 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
297 ds_put_format(ds, ",sFlow("
298 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
299 vlan_tci_to_vid(cookie.sflow.vlan_tci),
300 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
301 cookie.sflow.output);
302 } else if (userdata_len == sizeof cookie.slow_path
303 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
304 ds_put_cstr(ds, ",slow_path(");
305 format_flags(ds, slow_path_reason_to_string,
306 cookie.slow_path.reason, ',');
307 ds_put_format(ds, ")");
308 } else if (userdata_len == sizeof cookie.flow_sample
309 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
310 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
311 ",collector_set_id=%"PRIu32
312 ",obs_domain_id=%"PRIu32
313 ",obs_point_id=%"PRIu32")",
314 cookie.flow_sample.probability,
315 cookie.flow_sample.collector_set_id,
316 cookie.flow_sample.obs_domain_id,
317 cookie.flow_sample.obs_point_id);
318 } else if (userdata_len >= sizeof cookie.ipfix
319 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
320 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
321 cookie.ipfix.output_odp_port);
322 } else {
323 userdata_unspec = true;
324 }
325 }
326
327 if (userdata_unspec) {
328 size_t i;
329 ds_put_format(ds, ",userdata(");
330 for (i = 0; i < userdata_len; i++) {
331 ds_put_format(ds, "%02x", userdata[i]);
332 }
333 ds_put_char(ds, ')');
334 }
335 }
336
337 if (a[OVS_USERSPACE_ATTR_ACTIONS]) {
338 ds_put_cstr(ds, ",actions");
339 }
340
341 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
342 if (tunnel_out_port_attr) {
343 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
344 nl_attr_get_u32(tunnel_out_port_attr));
345 }
346
347 ds_put_char(ds, ')');
348 }
349
350 static void
351 format_vlan_tci(struct ds *ds, ovs_be16 tci, ovs_be16 mask, bool verbose)
352 {
353 if (verbose || vlan_tci_to_vid(tci) || vlan_tci_to_vid(mask)) {
354 ds_put_format(ds, "vid=%"PRIu16, vlan_tci_to_vid(tci));
355 if (vlan_tci_to_vid(mask) != VLAN_VID_MASK) { /* Partially masked. */
356 ds_put_format(ds, "/0x%"PRIx16, vlan_tci_to_vid(mask));
357 };
358 ds_put_char(ds, ',');
359 }
360 if (verbose || vlan_tci_to_pcp(tci) || vlan_tci_to_pcp(mask)) {
361 ds_put_format(ds, "pcp=%d", vlan_tci_to_pcp(tci));
362 if (vlan_tci_to_pcp(mask) != (VLAN_PCP_MASK >> VLAN_PCP_SHIFT)) {
363 ds_put_format(ds, "/0x%x", vlan_tci_to_pcp(mask));
364 }
365 ds_put_char(ds, ',');
366 }
367 if (!(tci & htons(VLAN_CFI))) {
368 ds_put_cstr(ds, "cfi=0");
369 ds_put_char(ds, ',');
370 }
371 ds_chomp(ds, ',');
372 }
373
374 static void
375 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
376 {
377 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
378 mpls_lse_to_label(mpls_lse),
379 mpls_lse_to_tc(mpls_lse),
380 mpls_lse_to_ttl(mpls_lse),
381 mpls_lse_to_bos(mpls_lse));
382 }
383
384 static void
385 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
386 const struct ovs_key_mpls *mpls_mask, int n)
387 {
388 if (n == 1) {
389 ovs_be32 key = mpls_key->mpls_lse;
390
391 if (mpls_mask == NULL) {
392 format_mpls_lse(ds, key);
393 } else {
394 ovs_be32 mask = mpls_mask->mpls_lse;
395
396 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
397 mpls_lse_to_label(key), mpls_lse_to_label(mask),
398 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
399 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
400 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
401 }
402 } else {
403 int i;
404
405 for (i = 0; i < n; i++) {
406 ds_put_format(ds, "lse%d=%#"PRIx32,
407 i, ntohl(mpls_key[i].mpls_lse));
408 if (mpls_mask) {
409 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
410 }
411 ds_put_char(ds, ',');
412 }
413 ds_chomp(ds, ',');
414 }
415 }
416
417 static void
418 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
419 {
420 ds_put_format(ds, "recirc(%#"PRIx32")", recirc_id);
421 }
422
423 static void
424 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
425 {
426 ds_put_format(ds, "hash(");
427
428 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
429 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
430 } else {
431 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
432 hash_act->hash_alg);
433 }
434 ds_put_format(ds, ")");
435 }
436
437 static const void *
438 format_udp_tnl_push_header(struct ds *ds, const struct ip_header *ip)
439 {
440 const struct udp_header *udp;
441
442 udp = (const struct udp_header *) (ip + 1);
443 ds_put_format(ds, "udp(src=%"PRIu16",dst=%"PRIu16",csum=0x%"PRIx16"),",
444 ntohs(udp->udp_src), ntohs(udp->udp_dst),
445 ntohs(udp->udp_csum));
446
447 return udp + 1;
448 }
449
450 static void
451 format_odp_tnl_push_header(struct ds *ds, struct ovs_action_push_tnl *data)
452 {
453 const struct eth_header *eth;
454 const struct ip_header *ip;
455 const void *l3;
456
457 eth = (const struct eth_header *)data->header;
458
459 l3 = eth + 1;
460 ip = (const struct ip_header *)l3;
461
462 /* Ethernet */
463 ds_put_format(ds, "header(size=%"PRIu8",type=%"PRIu8",eth(dst=",
464 data->header_len, data->tnl_type);
465 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_dst));
466 ds_put_format(ds, ",src=");
467 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_src));
468 ds_put_format(ds, ",dl_type=0x%04"PRIx16"),", ntohs(eth->eth_type));
469
470 /* IPv4 */
471 ds_put_format(ds, "ipv4(src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
472 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=0x%"PRIx16"),",
473 IP_ARGS(get_16aligned_be32(&ip->ip_src)),
474 IP_ARGS(get_16aligned_be32(&ip->ip_dst)),
475 ip->ip_proto, ip->ip_tos,
476 ip->ip_ttl,
477 ip->ip_frag_off);
478
479 if (data->tnl_type == OVS_VPORT_TYPE_VXLAN) {
480 const struct vxlanhdr *vxh;
481
482 vxh = format_udp_tnl_push_header(ds, ip);
483
484 ds_put_format(ds, "vxlan(flags=0x%"PRIx32",vni=0x%"PRIx32")",
485 ntohl(get_16aligned_be32(&vxh->vx_flags)),
486 ntohl(get_16aligned_be32(&vxh->vx_vni)) >> 8);
487 } else if (data->tnl_type == OVS_VPORT_TYPE_GENEVE) {
488 const struct genevehdr *gnh;
489
490 gnh = format_udp_tnl_push_header(ds, ip);
491
492 ds_put_format(ds, "geneve(%s%svni=0x%"PRIx32,
493 gnh->oam ? "oam," : "",
494 gnh->critical ? "crit," : "",
495 ntohl(get_16aligned_be32(&gnh->vni)) >> 8);
496
497 if (gnh->opt_len) {
498 ds_put_cstr(ds, ",options(");
499 format_geneve_opts(gnh->options, NULL, gnh->opt_len * 4,
500 ds, false);
501 ds_put_char(ds, ')');
502 }
503
504 ds_put_char(ds, ')');
505 } else if (data->tnl_type == OVS_VPORT_TYPE_GRE) {
506 const struct gre_base_hdr *greh;
507 ovs_16aligned_be32 *options;
508 void *l4;
509
510 l4 = ((uint8_t *)l3 + sizeof(struct ip_header));
511 greh = (const struct gre_base_hdr *) l4;
512
513 ds_put_format(ds, "gre((flags=0x%"PRIx16",proto=0x%"PRIx16")",
514 ntohs(greh->flags), ntohs(greh->protocol));
515 options = (ovs_16aligned_be32 *)(greh + 1);
516 if (greh->flags & htons(GRE_CSUM)) {
517 ds_put_format(ds, ",csum=0x%"PRIx16, ntohs(*((ovs_be16 *)options)));
518 options++;
519 }
520 if (greh->flags & htons(GRE_KEY)) {
521 ds_put_format(ds, ",key=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
522 options++;
523 }
524 if (greh->flags & htons(GRE_SEQ)) {
525 ds_put_format(ds, ",seq=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
526 options++;
527 }
528 ds_put_format(ds, ")");
529 }
530 ds_put_format(ds, ")");
531 }
532
533 static void
534 format_odp_tnl_push_action(struct ds *ds, const struct nlattr *attr)
535 {
536 struct ovs_action_push_tnl *data;
537
538 data = (struct ovs_action_push_tnl *) nl_attr_get(attr);
539
540 ds_put_format(ds, "tnl_push(tnl_port(%"PRIu32"),", data->tnl_port);
541 format_odp_tnl_push_header(ds, data);
542 ds_put_format(ds, ",out_port(%"PRIu32"))", data->out_port);
543 }
544
545 static const struct nl_policy ovs_nat_policy[] = {
546 [OVS_NAT_ATTR_SRC] = { .type = NL_A_FLAG, .optional = true, },
547 [OVS_NAT_ATTR_DST] = { .type = NL_A_FLAG, .optional = true, },
548 [OVS_NAT_ATTR_IP_MIN] = { .type = NL_A_UNSPEC, .optional = true,
549 .min_len = sizeof(struct in_addr),
550 .max_len = sizeof(struct in6_addr)},
551 [OVS_NAT_ATTR_IP_MAX] = { .type = NL_A_UNSPEC, .optional = true,
552 .min_len = sizeof(struct in_addr),
553 .max_len = sizeof(struct in6_addr)},
554 [OVS_NAT_ATTR_PROTO_MIN] = { .type = NL_A_U16, .optional = true, },
555 [OVS_NAT_ATTR_PROTO_MAX] = { .type = NL_A_U16, .optional = true, },
556 [OVS_NAT_ATTR_PERSISTENT] = { .type = NL_A_FLAG, .optional = true, },
557 [OVS_NAT_ATTR_PROTO_HASH] = { .type = NL_A_FLAG, .optional = true, },
558 [OVS_NAT_ATTR_PROTO_RANDOM] = { .type = NL_A_FLAG, .optional = true, },
559 };
560
561 static void
562 format_odp_ct_nat(struct ds *ds, const struct nlattr *attr)
563 {
564 struct nlattr *a[ARRAY_SIZE(ovs_nat_policy)];
565 size_t addr_len;
566 ovs_be32 ip_min, ip_max;
567 struct in6_addr ip6_min, ip6_max;
568 uint16_t proto_min, proto_max;
569
570 if (!nl_parse_nested(attr, ovs_nat_policy, a, ARRAY_SIZE(a))) {
571 ds_put_cstr(ds, "nat(error: nl_parse_nested() failed.)");
572 return;
573 }
574 /* If no type, then nothing else either. */
575 if (!(a[OVS_NAT_ATTR_SRC] || a[OVS_NAT_ATTR_DST])
576 && (a[OVS_NAT_ATTR_IP_MIN] || a[OVS_NAT_ATTR_IP_MAX]
577 || a[OVS_NAT_ATTR_PROTO_MIN] || a[OVS_NAT_ATTR_PROTO_MAX]
578 || a[OVS_NAT_ATTR_PERSISTENT] || a[OVS_NAT_ATTR_PROTO_HASH]
579 || a[OVS_NAT_ATTR_PROTO_RANDOM])) {
580 ds_put_cstr(ds, "nat(error: options allowed only with \"src\" or \"dst\")");
581 return;
582 }
583 /* Both SNAT & DNAT may not be specified. */
584 if (a[OVS_NAT_ATTR_SRC] && a[OVS_NAT_ATTR_DST]) {
585 ds_put_cstr(ds, "nat(error: Only one of \"src\" or \"dst\" may be present.)");
586 return;
587 }
588 /* proto may not appear without ip. */
589 if (!a[OVS_NAT_ATTR_IP_MIN] && a[OVS_NAT_ATTR_PROTO_MIN]) {
590 ds_put_cstr(ds, "nat(error: proto but no IP.)");
591 return;
592 }
593 /* MAX may not appear without MIN. */
594 if ((!a[OVS_NAT_ATTR_IP_MIN] && a[OVS_NAT_ATTR_IP_MAX])
595 || (!a[OVS_NAT_ATTR_PROTO_MIN] && a[OVS_NAT_ATTR_PROTO_MAX])) {
596 ds_put_cstr(ds, "nat(error: range max without min.)");
597 return;
598 }
599 /* Address sizes must match. */
600 if ((a[OVS_NAT_ATTR_IP_MIN]
601 && (nl_attr_get_size(a[OVS_NAT_ATTR_IP_MIN]) != sizeof(ovs_be32) &&
602 nl_attr_get_size(a[OVS_NAT_ATTR_IP_MIN]) != sizeof(struct in6_addr)))
603 || (a[OVS_NAT_ATTR_IP_MIN] && a[OVS_NAT_ATTR_IP_MAX]
604 && (nl_attr_get_size(a[OVS_NAT_ATTR_IP_MIN])
605 != nl_attr_get_size(a[OVS_NAT_ATTR_IP_MAX])))) {
606 ds_put_cstr(ds, "nat(error: IP address sizes do not match)");
607 return;
608 }
609
610 addr_len = a[OVS_NAT_ATTR_IP_MIN]
611 ? nl_attr_get_size(a[OVS_NAT_ATTR_IP_MIN]) : 0;
612 ip_min = addr_len == sizeof(ovs_be32) && a[OVS_NAT_ATTR_IP_MIN]
613 ? nl_attr_get_be32(a[OVS_NAT_ATTR_IP_MIN]) : 0;
614 ip_max = addr_len == sizeof(ovs_be32) && a[OVS_NAT_ATTR_IP_MAX]
615 ? nl_attr_get_be32(a[OVS_NAT_ATTR_IP_MAX]) : 0;
616 if (addr_len == sizeof ip6_min) {
617 ip6_min = a[OVS_NAT_ATTR_IP_MIN]
618 ? *(struct in6_addr *)nl_attr_get(a[OVS_NAT_ATTR_IP_MIN])
619 : in6addr_any;
620 ip6_max = a[OVS_NAT_ATTR_IP_MAX]
621 ? *(struct in6_addr *)nl_attr_get(a[OVS_NAT_ATTR_IP_MAX])
622 : in6addr_any;
623 }
624 proto_min = a[OVS_NAT_ATTR_PROTO_MIN]
625 ? nl_attr_get_u16(a[OVS_NAT_ATTR_PROTO_MIN]) : 0;
626 proto_max = a[OVS_NAT_ATTR_PROTO_MAX]
627 ? nl_attr_get_u16(a[OVS_NAT_ATTR_PROTO_MAX]) : 0;
628
629 if ((addr_len == sizeof(ovs_be32)
630 && ip_max && ntohl(ip_min) > ntohl(ip_max))
631 || (addr_len == sizeof(struct in6_addr)
632 && !ipv6_mask_is_any(&ip6_max)
633 && memcmp(&ip6_min, &ip6_max, sizeof ip6_min) > 0)
634 || (proto_max && proto_min > proto_max)) {
635 ds_put_cstr(ds, "nat(range error)");
636 return;
637 }
638
639 ds_put_cstr(ds, "nat");
640 if (a[OVS_NAT_ATTR_SRC] || a[OVS_NAT_ATTR_DST]) {
641 ds_put_char(ds, '(');
642 if (a[OVS_NAT_ATTR_SRC]) {
643 ds_put_cstr(ds, "src");
644 } else if (a[OVS_NAT_ATTR_DST]) {
645 ds_put_cstr(ds, "dst");
646 }
647
648 if (addr_len > 0) {
649 ds_put_cstr(ds, "=");
650
651 if (addr_len == sizeof ip_min) {
652 ds_put_format(ds, IP_FMT, IP_ARGS(ip_min));
653
654 if (ip_max && ip_max != ip_min) {
655 ds_put_format(ds, "-"IP_FMT, IP_ARGS(ip_max));
656 }
657 } else if (addr_len == sizeof ip6_min) {
658 ipv6_format_addr_bracket(&ip6_min, ds, proto_min);
659
660 if (!ipv6_mask_is_any(&ip6_max) &&
661 memcmp(&ip6_max, &ip6_min, sizeof ip6_max) != 0) {
662 ds_put_char(ds, '-');
663 ipv6_format_addr_bracket(&ip6_max, ds, proto_min);
664 }
665 }
666 if (proto_min) {
667 ds_put_format(ds, ":%"PRIu16, proto_min);
668
669 if (proto_max && proto_max != proto_min) {
670 ds_put_format(ds, "-%"PRIu16, proto_max);
671 }
672 }
673 }
674 ds_put_char(ds, ',');
675 if (a[OVS_NAT_ATTR_PERSISTENT]) {
676 ds_put_cstr(ds, "persistent,");
677 }
678 if (a[OVS_NAT_ATTR_PROTO_HASH]) {
679 ds_put_cstr(ds, "hash,");
680 }
681 if (a[OVS_NAT_ATTR_PROTO_RANDOM]) {
682 ds_put_cstr(ds, "random,");
683 }
684 ds_chomp(ds, ',');
685 ds_put_char(ds, ')');
686 }
687 }
688
689 static const struct nl_policy ovs_conntrack_policy[] = {
690 [OVS_CT_ATTR_COMMIT] = { .type = NL_A_FLAG, .optional = true, },
691 [OVS_CT_ATTR_ZONE] = { .type = NL_A_U16, .optional = true, },
692 [OVS_CT_ATTR_MARK] = { .type = NL_A_UNSPEC, .optional = true,
693 .min_len = sizeof(uint32_t) * 2 },
694 [OVS_CT_ATTR_LABELS] = { .type = NL_A_UNSPEC, .optional = true,
695 .min_len = sizeof(struct ovs_key_ct_labels) * 2 },
696 [OVS_CT_ATTR_HELPER] = { .type = NL_A_STRING, .optional = true,
697 .min_len = 1, .max_len = 16 },
698 [OVS_CT_ATTR_NAT] = { .type = NL_A_UNSPEC, .optional = true },
699 };
700
701 static void
702 format_odp_conntrack_action(struct ds *ds, const struct nlattr *attr)
703 {
704 struct nlattr *a[ARRAY_SIZE(ovs_conntrack_policy)];
705 const ovs_u128 *label;
706 const uint32_t *mark;
707 const char *helper;
708 uint16_t zone;
709 bool commit;
710 const struct nlattr *nat;
711
712 if (!nl_parse_nested(attr, ovs_conntrack_policy, a, ARRAY_SIZE(a))) {
713 ds_put_cstr(ds, "ct(error)");
714 return;
715 }
716
717 commit = a[OVS_CT_ATTR_COMMIT] ? true : false;
718 zone = a[OVS_CT_ATTR_ZONE] ? nl_attr_get_u16(a[OVS_CT_ATTR_ZONE]) : 0;
719 mark = a[OVS_CT_ATTR_MARK] ? nl_attr_get(a[OVS_CT_ATTR_MARK]) : NULL;
720 label = a[OVS_CT_ATTR_LABELS] ? nl_attr_get(a[OVS_CT_ATTR_LABELS]): NULL;
721 helper = a[OVS_CT_ATTR_HELPER] ? nl_attr_get(a[OVS_CT_ATTR_HELPER]) : NULL;
722 nat = a[OVS_CT_ATTR_NAT];
723
724 ds_put_format(ds, "ct");
725 if (commit || zone || mark || label || helper || nat) {
726 ds_put_cstr(ds, "(");
727 if (commit) {
728 ds_put_format(ds, "commit,");
729 }
730 if (zone) {
731 ds_put_format(ds, "zone=%"PRIu16",", zone);
732 }
733 if (mark) {
734 ds_put_format(ds, "mark=%#"PRIx32"/%#"PRIx32",", *mark,
735 *(mark + 1));
736 }
737 if (label) {
738 ds_put_format(ds, "label=");
739 format_u128(ds, label, label + 1, true);
740 ds_put_char(ds, ',');
741 }
742 if (helper) {
743 ds_put_format(ds, "helper=%s,", helper);
744 }
745 if (nat) {
746 format_odp_ct_nat(ds, nat);
747 }
748 ds_chomp(ds, ',');
749 ds_put_cstr(ds, ")");
750 }
751 }
752
753 static void
754 format_odp_action(struct ds *ds, const struct nlattr *a)
755 {
756 int expected_len;
757 enum ovs_action_attr type = nl_attr_type(a);
758 size_t size;
759
760 expected_len = odp_action_len(nl_attr_type(a));
761 if (expected_len != ATTR_LEN_VARIABLE &&
762 nl_attr_get_size(a) != expected_len) {
763 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
764 nl_attr_get_size(a), expected_len);
765 format_generic_odp_action(ds, a);
766 return;
767 }
768
769 switch (type) {
770 case OVS_ACTION_ATTR_OUTPUT:
771 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
772 break;
773 case OVS_ACTION_ATTR_TUNNEL_POP:
774 ds_put_format(ds, "tnl_pop(%"PRIu32")", nl_attr_get_u32(a));
775 break;
776 case OVS_ACTION_ATTR_TUNNEL_PUSH:
777 format_odp_tnl_push_action(ds, a);
778 break;
779 case OVS_ACTION_ATTR_USERSPACE:
780 format_odp_userspace_action(ds, a);
781 break;
782 case OVS_ACTION_ATTR_RECIRC:
783 format_odp_recirc_action(ds, nl_attr_get_u32(a));
784 break;
785 case OVS_ACTION_ATTR_HASH:
786 format_odp_hash_action(ds, nl_attr_get(a));
787 break;
788 case OVS_ACTION_ATTR_SET_MASKED:
789 a = nl_attr_get(a);
790 size = nl_attr_get_size(a) / 2;
791 ds_put_cstr(ds, "set(");
792
793 /* Masked set action not supported for tunnel key, which is bigger. */
794 if (size <= sizeof(struct ovs_key_ipv6)) {
795 struct nlattr attr[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
796 sizeof(struct nlattr))];
797 struct nlattr mask[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
798 sizeof(struct nlattr))];
799
800 mask->nla_type = attr->nla_type = nl_attr_type(a);
801 mask->nla_len = attr->nla_len = NLA_HDRLEN + size;
802 memcpy(attr + 1, (char *)(a + 1), size);
803 memcpy(mask + 1, (char *)(a + 1) + size, size);
804 format_odp_key_attr(attr, mask, NULL, ds, false);
805 } else {
806 format_odp_key_attr(a, NULL, NULL, ds, false);
807 }
808 ds_put_cstr(ds, ")");
809 break;
810 case OVS_ACTION_ATTR_SET:
811 ds_put_cstr(ds, "set(");
812 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
813 ds_put_cstr(ds, ")");
814 break;
815 case OVS_ACTION_ATTR_PUSH_VLAN: {
816 const struct ovs_action_push_vlan *vlan = nl_attr_get(a);
817 ds_put_cstr(ds, "push_vlan(");
818 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
819 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
820 }
821 format_vlan_tci(ds, vlan->vlan_tci, OVS_BE16_MAX, false);
822 ds_put_char(ds, ')');
823 break;
824 }
825 case OVS_ACTION_ATTR_POP_VLAN:
826 ds_put_cstr(ds, "pop_vlan");
827 break;
828 case OVS_ACTION_ATTR_PUSH_MPLS: {
829 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
830 ds_put_cstr(ds, "push_mpls(");
831 format_mpls_lse(ds, mpls->mpls_lse);
832 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
833 break;
834 }
835 case OVS_ACTION_ATTR_POP_MPLS: {
836 ovs_be16 ethertype = nl_attr_get_be16(a);
837 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
838 break;
839 }
840 case OVS_ACTION_ATTR_SAMPLE:
841 format_odp_sample_action(ds, a);
842 break;
843 case OVS_ACTION_ATTR_CT:
844 format_odp_conntrack_action(ds, a);
845 break;
846 case OVS_ACTION_ATTR_UNSPEC:
847 case __OVS_ACTION_ATTR_MAX:
848 default:
849 format_generic_odp_action(ds, a);
850 break;
851 }
852 }
853
854 void
855 format_odp_actions(struct ds *ds, const struct nlattr *actions,
856 size_t actions_len)
857 {
858 if (actions_len) {
859 const struct nlattr *a;
860 unsigned int left;
861
862 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
863 if (a != actions) {
864 ds_put_char(ds, ',');
865 }
866 format_odp_action(ds, a);
867 }
868 if (left) {
869 int i;
870
871 if (left == actions_len) {
872 ds_put_cstr(ds, "<empty>");
873 }
874 ds_put_format(ds, ",***%u leftover bytes*** (", left);
875 for (i = 0; i < left; i++) {
876 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
877 }
878 ds_put_char(ds, ')');
879 }
880 } else {
881 ds_put_cstr(ds, "drop");
882 }
883 }
884
885 /* Separate out parse_odp_userspace_action() function. */
886 static int
887 parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
888 {
889 uint32_t pid;
890 union user_action_cookie cookie;
891 struct ofpbuf buf;
892 odp_port_t tunnel_out_port;
893 int n = -1;
894 void *user_data = NULL;
895 size_t user_data_size = 0;
896 bool include_actions = false;
897
898 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
899 return -EINVAL;
900 }
901
902 {
903 uint32_t output;
904 uint32_t probability;
905 uint32_t collector_set_id;
906 uint32_t obs_domain_id;
907 uint32_t obs_point_id;
908 int vid, pcp;
909 int n1 = -1;
910 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
911 "pcp=%i,output=%"SCNi32")%n",
912 &vid, &pcp, &output, &n1)) {
913 uint16_t tci;
914
915 n += n1;
916 tci = vid | (pcp << VLAN_PCP_SHIFT);
917 if (tci) {
918 tci |= VLAN_CFI;
919 }
920
921 cookie.type = USER_ACTION_COOKIE_SFLOW;
922 cookie.sflow.vlan_tci = htons(tci);
923 cookie.sflow.output = output;
924 user_data = &cookie;
925 user_data_size = sizeof cookie.sflow;
926 } else if (ovs_scan(&s[n], ",slow_path(%n",
927 &n1)) {
928 int res;
929
930 n += n1;
931 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
932 cookie.slow_path.unused = 0;
933 cookie.slow_path.reason = 0;
934
935 res = parse_odp_flags(&s[n], slow_path_reason_to_string,
936 &cookie.slow_path.reason,
937 SLOW_PATH_REASON_MASK, NULL);
938 if (res < 0 || s[n + res] != ')') {
939 return res;
940 }
941 n += res + 1;
942
943 user_data = &cookie;
944 user_data_size = sizeof cookie.slow_path;
945 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
946 "collector_set_id=%"SCNi32","
947 "obs_domain_id=%"SCNi32","
948 "obs_point_id=%"SCNi32")%n",
949 &probability, &collector_set_id,
950 &obs_domain_id, &obs_point_id, &n1)) {
951 n += n1;
952
953 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
954 cookie.flow_sample.probability = probability;
955 cookie.flow_sample.collector_set_id = collector_set_id;
956 cookie.flow_sample.obs_domain_id = obs_domain_id;
957 cookie.flow_sample.obs_point_id = obs_point_id;
958 user_data = &cookie;
959 user_data_size = sizeof cookie.flow_sample;
960 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
961 &output, &n1) ) {
962 n += n1;
963 cookie.type = USER_ACTION_COOKIE_IPFIX;
964 cookie.ipfix.output_odp_port = u32_to_odp(output);
965 user_data = &cookie;
966 user_data_size = sizeof cookie.ipfix;
967 } else if (ovs_scan(&s[n], ",userdata(%n",
968 &n1)) {
969 char *end;
970
971 n += n1;
972 ofpbuf_init(&buf, 16);
973 end = ofpbuf_put_hex(&buf, &s[n], NULL);
974 if (end[0] != ')') {
975 return -EINVAL;
976 }
977 user_data = buf.data;
978 user_data_size = buf.size;
979 n = (end + 1) - s;
980 }
981 }
982
983 {
984 int n1 = -1;
985 if (ovs_scan(&s[n], ",actions%n", &n1)) {
986 n += n1;
987 include_actions = true;
988 }
989 }
990
991 {
992 int n1 = -1;
993 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
994 &tunnel_out_port, &n1)) {
995 odp_put_userspace_action(pid, user_data, user_data_size,
996 tunnel_out_port, include_actions, actions);
997 return n + n1;
998 } else if (s[n] == ')') {
999 odp_put_userspace_action(pid, user_data, user_data_size,
1000 ODPP_NONE, include_actions, actions);
1001 return n + 1;
1002 }
1003 }
1004
1005 return -EINVAL;
1006 }
1007
1008 static int
1009 ovs_parse_tnl_push(const char *s, struct ovs_action_push_tnl *data)
1010 {
1011 struct eth_header *eth;
1012 struct ip_header *ip;
1013 struct udp_header *udp;
1014 struct gre_base_hdr *greh;
1015 uint16_t gre_proto, gre_flags, dl_type, udp_src, udp_dst, csum;
1016 ovs_be32 sip, dip;
1017 uint32_t tnl_type = 0, header_len = 0;
1018 void *l3, *l4;
1019 int n = 0;
1020
1021 if (!ovs_scan_len(s, &n, "tnl_push(tnl_port(%"SCNi32"),", &data->tnl_port)) {
1022 return -EINVAL;
1023 }
1024 eth = (struct eth_header *) data->header;
1025 l3 = (data->header + sizeof *eth);
1026 l4 = ((uint8_t *) l3 + sizeof (struct ip_header));
1027 ip = (struct ip_header *) l3;
1028 if (!ovs_scan_len(s, &n, "header(size=%"SCNi32",type=%"SCNi32","
1029 "eth(dst="ETH_ADDR_SCAN_FMT",",
1030 &data->header_len,
1031 &data->tnl_type,
1032 ETH_ADDR_SCAN_ARGS(eth->eth_dst))) {
1033 return -EINVAL;
1034 }
1035
1036 if (!ovs_scan_len(s, &n, "src="ETH_ADDR_SCAN_FMT",",
1037 ETH_ADDR_SCAN_ARGS(eth->eth_src))) {
1038 return -EINVAL;
1039 }
1040 if (!ovs_scan_len(s, &n, "dl_type=0x%"SCNx16"),", &dl_type)) {
1041 return -EINVAL;
1042 }
1043 eth->eth_type = htons(dl_type);
1044
1045 /* IPv4 */
1046 if (!ovs_scan_len(s, &n, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT",proto=%"SCNi8
1047 ",tos=%"SCNi8",ttl=%"SCNi8",frag=0x%"SCNx16"),",
1048 IP_SCAN_ARGS(&sip),
1049 IP_SCAN_ARGS(&dip),
1050 &ip->ip_proto, &ip->ip_tos,
1051 &ip->ip_ttl, &ip->ip_frag_off)) {
1052 return -EINVAL;
1053 }
1054 put_16aligned_be32(&ip->ip_src, sip);
1055 put_16aligned_be32(&ip->ip_dst, dip);
1056
1057 /* Tunnel header */
1058 udp = (struct udp_header *) l4;
1059 greh = (struct gre_base_hdr *) l4;
1060 if (ovs_scan_len(s, &n, "udp(src=%"SCNi16",dst=%"SCNi16",csum=0x%"SCNx16"),",
1061 &udp_src, &udp_dst, &csum)) {
1062 uint32_t vx_flags, vni;
1063
1064 udp->udp_src = htons(udp_src);
1065 udp->udp_dst = htons(udp_dst);
1066 udp->udp_len = 0;
1067 udp->udp_csum = htons(csum);
1068
1069 if (ovs_scan_len(s, &n, "vxlan(flags=0x%"SCNx32",vni=0x%"SCNx32"))",
1070 &vx_flags, &vni)) {
1071 struct vxlanhdr *vxh = (struct vxlanhdr *) (udp + 1);
1072
1073 put_16aligned_be32(&vxh->vx_flags, htonl(vx_flags));
1074 put_16aligned_be32(&vxh->vx_vni, htonl(vni << 8));
1075 tnl_type = OVS_VPORT_TYPE_VXLAN;
1076 header_len = sizeof *eth + sizeof *ip +
1077 sizeof *udp + sizeof *vxh;
1078 } else if (ovs_scan_len(s, &n, "geneve(")) {
1079 struct genevehdr *gnh = (struct genevehdr *) (udp + 1);
1080
1081 memset(gnh, 0, sizeof *gnh);
1082 header_len = sizeof *eth + sizeof *ip +
1083 sizeof *udp + sizeof *gnh;
1084
1085 if (ovs_scan_len(s, &n, "oam,")) {
1086 gnh->oam = 1;
1087 }
1088 if (ovs_scan_len(s, &n, "crit,")) {
1089 gnh->critical = 1;
1090 }
1091 if (!ovs_scan_len(s, &n, "vni=%"SCNi32, &vni)) {
1092 return -EINVAL;
1093 }
1094 if (ovs_scan_len(s, &n, ",options(")) {
1095 struct geneve_scan options;
1096 int len;
1097
1098 memset(&options, 0, sizeof options);
1099 len = scan_geneve(s + n, &options, NULL);
1100 if (!len) {
1101 return -EINVAL;
1102 }
1103
1104 memcpy(gnh->options, options.d, options.len);
1105 gnh->opt_len = options.len / 4;
1106 header_len += options.len;
1107
1108 n += len;
1109 }
1110 if (!ovs_scan_len(s, &n, "))")) {
1111 return -EINVAL;
1112 }
1113
1114 gnh->proto_type = htons(ETH_TYPE_TEB);
1115 put_16aligned_be32(&gnh->vni, htonl(vni << 8));
1116 tnl_type = OVS_VPORT_TYPE_GENEVE;
1117 } else {
1118 return -EINVAL;
1119 }
1120 } else if (ovs_scan_len(s, &n, "gre((flags=0x%"SCNx16",proto=0x%"SCNx16")",
1121 &gre_flags, &gre_proto)){
1122
1123 tnl_type = OVS_VPORT_TYPE_GRE;
1124 greh->flags = htons(gre_flags);
1125 greh->protocol = htons(gre_proto);
1126 ovs_16aligned_be32 *options = (ovs_16aligned_be32 *) (greh + 1);
1127
1128 if (greh->flags & htons(GRE_CSUM)) {
1129 if (!ovs_scan_len(s, &n, ",csum=0x%"SCNx16, &csum)) {
1130 return -EINVAL;
1131 }
1132
1133 memset(options, 0, sizeof *options);
1134 *((ovs_be16 *)options) = htons(csum);
1135 options++;
1136 }
1137 if (greh->flags & htons(GRE_KEY)) {
1138 uint32_t key;
1139
1140 if (!ovs_scan_len(s, &n, ",key=0x%"SCNx32, &key)) {
1141 return -EINVAL;
1142 }
1143
1144 put_16aligned_be32(options, htonl(key));
1145 options++;
1146 }
1147 if (greh->flags & htons(GRE_SEQ)) {
1148 uint32_t seq;
1149
1150 if (!ovs_scan_len(s, &n, ",seq=0x%"SCNx32, &seq)) {
1151 return -EINVAL;
1152 }
1153 put_16aligned_be32(options, htonl(seq));
1154 options++;
1155 }
1156
1157 if (!ovs_scan_len(s, &n, "))")) {
1158 return -EINVAL;
1159 }
1160
1161 header_len = sizeof *eth + sizeof *ip +
1162 ((uint8_t *) options - (uint8_t *) greh);
1163 } else {
1164 return -EINVAL;
1165 }
1166
1167 /* check tunnel meta data. */
1168 if (data->tnl_type != tnl_type) {
1169 return -EINVAL;
1170 }
1171 if (data->header_len != header_len) {
1172 return -EINVAL;
1173 }
1174
1175 /* Out port */
1176 if (!ovs_scan_len(s, &n, ",out_port(%"SCNi32"))", &data->out_port)) {
1177 return -EINVAL;
1178 }
1179
1180 return n;
1181 }
1182
1183 struct ct_nat_params {
1184 bool snat;
1185 bool dnat;
1186 size_t addr_len;
1187 union {
1188 ovs_be32 ip;
1189 struct in6_addr ip6;
1190 } addr_min;
1191 union {
1192 ovs_be32 ip;
1193 struct in6_addr ip6;
1194 } addr_max;
1195 uint16_t proto_min;
1196 uint16_t proto_max;
1197 bool persistent;
1198 bool proto_hash;
1199 bool proto_random;
1200 };
1201
1202 static int
1203 scan_ct_nat_range(const char *s, int *n, struct ct_nat_params *p)
1204 {
1205 if (ovs_scan_len(s, n, "=")) {
1206 char ipv6_s[IPV6_SCAN_LEN + 1];
1207 struct in6_addr ipv6;
1208
1209 if (ovs_scan_len(s, n, IP_SCAN_FMT, IP_SCAN_ARGS(&p->addr_min.ip))) {
1210 p->addr_len = sizeof p->addr_min.ip;
1211 if (ovs_scan_len(s, n, "-")) {
1212 if (!ovs_scan_len(s, n, IP_SCAN_FMT,
1213 IP_SCAN_ARGS(&p->addr_max.ip))) {
1214 return -EINVAL;
1215 }
1216 }
1217 } else if ((ovs_scan_len(s, n, IPV6_SCAN_FMT, ipv6_s)
1218 || ovs_scan_len(s, n, "["IPV6_SCAN_FMT"]", ipv6_s))
1219 && inet_pton(AF_INET6, ipv6_s, &ipv6) == 1) {
1220 p->addr_len = sizeof p->addr_min.ip6;
1221 p->addr_min.ip6 = ipv6;
1222 if (ovs_scan_len(s, n, "-")) {
1223 if ((ovs_scan_len(s, n, IPV6_SCAN_FMT, ipv6_s)
1224 || ovs_scan_len(s, n, "["IPV6_SCAN_FMT"]", ipv6_s))
1225 && inet_pton(AF_INET6, ipv6_s, &ipv6) == 1) {
1226 p->addr_max.ip6 = ipv6;
1227 } else {
1228 return -EINVAL;
1229 }
1230 }
1231 } else {
1232 return -EINVAL;
1233 }
1234 if (ovs_scan_len(s, n, ":%"SCNu16, &p->proto_min)) {
1235 if (ovs_scan_len(s, n, "-")) {
1236 if (!ovs_scan_len(s, n, "%"SCNu16, &p->proto_max)) {
1237 return -EINVAL;
1238 }
1239 }
1240 }
1241 }
1242 return 0;
1243 }
1244
1245 static int
1246 scan_ct_nat(const char *s, struct ct_nat_params *p)
1247 {
1248 int n = 0;
1249
1250 if (ovs_scan_len(s, &n, "nat")) {
1251 memset(p, 0, sizeof *p);
1252
1253 if (ovs_scan_len(s, &n, "(")) {
1254 char *end;
1255 int end_n;
1256
1257 end = strchr(s + n, ')');
1258 if (!end) {
1259 return -EINVAL;
1260 }
1261 end_n = end - s;
1262
1263 while (n < end_n) {
1264 n += strspn(s + n, delimiters);
1265 if (ovs_scan_len(s, &n, "src")) {
1266 int err = scan_ct_nat_range(s, &n, p);
1267 if (err) {
1268 return err;
1269 }
1270 p->snat = true;
1271 continue;
1272 }
1273 if (ovs_scan_len(s, &n, "dst")) {
1274 int err = scan_ct_nat_range(s, &n, p);
1275 if (err) {
1276 return err;
1277 }
1278 p->dnat = true;
1279 continue;
1280 }
1281 if (ovs_scan_len(s, &n, "persistent")) {
1282 p->persistent = true;
1283 continue;
1284 }
1285 if (ovs_scan_len(s, &n, "hash")) {
1286 p->proto_hash = true;
1287 continue;
1288 }
1289 if (ovs_scan_len(s, &n, "random")) {
1290 p->proto_random = true;
1291 continue;
1292 }
1293 return -EINVAL;
1294 }
1295
1296 if (p->snat && p->dnat) {
1297 return -EINVAL;
1298 }
1299 if ((p->addr_len != 0 &&
1300 memcmp(&p->addr_max, &in6addr_any, p->addr_len) &&
1301 memcmp(&p->addr_max, &p->addr_min, p->addr_len) < 0) ||
1302 (p->proto_max && p->proto_max < p->proto_min)) {
1303 return -EINVAL;
1304 }
1305 if (p->proto_hash && p->proto_random) {
1306 return -EINVAL;
1307 }
1308 n++;
1309 }
1310 }
1311 return n;
1312 }
1313
1314 static void
1315 nl_msg_put_ct_nat(struct ct_nat_params *p, struct ofpbuf *actions)
1316 {
1317 size_t start = nl_msg_start_nested(actions, OVS_CT_ATTR_NAT);
1318
1319 if (p->snat) {
1320 nl_msg_put_flag(actions, OVS_NAT_ATTR_SRC);
1321 } else if (p->dnat) {
1322 nl_msg_put_flag(actions, OVS_NAT_ATTR_DST);
1323 } else {
1324 goto out;
1325 }
1326 if (p->addr_len != 0) {
1327 nl_msg_put_unspec(actions, OVS_NAT_ATTR_IP_MIN, &p->addr_min,
1328 p->addr_len);
1329 if (memcmp(&p->addr_max, &p->addr_min, p->addr_len) > 0) {
1330 nl_msg_put_unspec(actions, OVS_NAT_ATTR_IP_MAX, &p->addr_max,
1331 p->addr_len);
1332 }
1333 if (p->proto_min) {
1334 nl_msg_put_u16(actions, OVS_NAT_ATTR_PROTO_MIN, p->proto_min);
1335 if (p->proto_max && p->proto_max > p->proto_min) {
1336 nl_msg_put_u16(actions, OVS_NAT_ATTR_PROTO_MAX, p->proto_max);
1337 }
1338 }
1339 if (p->persistent) {
1340 nl_msg_put_flag(actions, OVS_NAT_ATTR_PERSISTENT);
1341 }
1342 if (p->proto_hash) {
1343 nl_msg_put_flag(actions, OVS_NAT_ATTR_PROTO_HASH);
1344 }
1345 if (p->proto_random) {
1346 nl_msg_put_flag(actions, OVS_NAT_ATTR_PROTO_RANDOM);
1347 }
1348 }
1349 out:
1350 nl_msg_end_nested(actions, start);
1351 }
1352
1353 static int
1354 parse_conntrack_action(const char *s_, struct ofpbuf *actions)
1355 {
1356 const char *s = s_;
1357
1358 if (ovs_scan(s, "ct")) {
1359 const char *helper = NULL;
1360 size_t helper_len = 0;
1361 bool commit = false;
1362 uint16_t zone = 0;
1363 struct {
1364 uint32_t value;
1365 uint32_t mask;
1366 } ct_mark = { 0, 0 };
1367 struct {
1368 ovs_u128 value;
1369 ovs_u128 mask;
1370 } ct_label;
1371 struct ct_nat_params nat_params;
1372 bool have_nat = false;
1373 size_t start;
1374 char *end;
1375
1376 memset(&ct_label, 0, sizeof(ct_label));
1377
1378 s += 2;
1379 if (ovs_scan(s, "(")) {
1380 s++;
1381 find_end:
1382 end = strchr(s, ')');
1383 if (!end) {
1384 return -EINVAL;
1385 }
1386
1387 while (s != end) {
1388 int n;
1389
1390 s += strspn(s, delimiters);
1391 if (ovs_scan(s, "commit%n", &n)) {
1392 commit = true;
1393 s += n;
1394 continue;
1395 }
1396 if (ovs_scan(s, "zone=%"SCNu16"%n", &zone, &n)) {
1397 s += n;
1398 continue;
1399 }
1400 if (ovs_scan(s, "mark=%"SCNx32"%n", &ct_mark.value, &n)) {
1401 s += n;
1402 n = -1;
1403 if (ovs_scan(s, "/%"SCNx32"%n", &ct_mark.mask, &n)) {
1404 s += n;
1405 } else {
1406 ct_mark.mask = UINT32_MAX;
1407 }
1408 continue;
1409 }
1410 if (ovs_scan(s, "label=%n", &n)) {
1411 int retval;
1412
1413 s += n;
1414 retval = scan_u128(s, &ct_label.value, &ct_label.mask);
1415 if (retval < 0) {
1416 return retval;
1417 }
1418 s += retval;
1419 continue;
1420 }
1421 if (ovs_scan(s, "helper=%n", &n)) {
1422 s += n;
1423 helper_len = strcspn(s, delimiters_end);
1424 if (!helper_len || helper_len > 15) {
1425 return -EINVAL;
1426 }
1427 helper = s;
1428 s += helper_len;
1429 continue;
1430 }
1431
1432 n = scan_ct_nat(s, &nat_params);
1433 if (n > 0) {
1434 s += n;
1435 have_nat = true;
1436
1437 /* end points to the end of the nested, nat action.
1438 * find the real end. */
1439 goto find_end;
1440 }
1441 /* Nothing matched. */
1442 return -EINVAL;
1443 }
1444 s++;
1445 }
1446
1447 start = nl_msg_start_nested(actions, OVS_ACTION_ATTR_CT);
1448 if (commit) {
1449 nl_msg_put_flag(actions, OVS_CT_ATTR_COMMIT);
1450 }
1451 if (zone) {
1452 nl_msg_put_u16(actions, OVS_CT_ATTR_ZONE, zone);
1453 }
1454 if (ct_mark.mask) {
1455 nl_msg_put_unspec(actions, OVS_CT_ATTR_MARK, &ct_mark,
1456 sizeof(ct_mark));
1457 }
1458 if (!ovs_u128_is_zero(&ct_label.mask)) {
1459 nl_msg_put_unspec(actions, OVS_CT_ATTR_LABELS, &ct_label,
1460 sizeof ct_label);
1461 }
1462 if (helper) {
1463 nl_msg_put_string__(actions, OVS_CT_ATTR_HELPER, helper,
1464 helper_len);
1465 }
1466 if (have_nat) {
1467 nl_msg_put_ct_nat(&nat_params, actions);
1468 }
1469 nl_msg_end_nested(actions, start);
1470 }
1471
1472 return s - s_;
1473 }
1474
1475 static int
1476 parse_odp_action(const char *s, const struct simap *port_names,
1477 struct ofpbuf *actions)
1478 {
1479 {
1480 uint32_t port;
1481 int n;
1482
1483 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
1484 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
1485 return n;
1486 }
1487 }
1488
1489 if (port_names) {
1490 int len = strcspn(s, delimiters);
1491 struct simap_node *node;
1492
1493 node = simap_find_len(port_names, s, len);
1494 if (node) {
1495 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
1496 return len;
1497 }
1498 }
1499
1500 {
1501 uint32_t recirc_id;
1502 int n = -1;
1503
1504 if (ovs_scan(s, "recirc(%"PRIu32")%n", &recirc_id, &n)) {
1505 nl_msg_put_u32(actions, OVS_ACTION_ATTR_RECIRC, recirc_id);
1506 return n;
1507 }
1508 }
1509
1510 if (!strncmp(s, "userspace(", 10)) {
1511 return parse_odp_userspace_action(s, actions);
1512 }
1513
1514 if (!strncmp(s, "set(", 4)) {
1515 size_t start_ofs;
1516 int retval;
1517 struct nlattr mask[128 / sizeof(struct nlattr)];
1518 struct ofpbuf maskbuf;
1519 struct nlattr *nested, *key;
1520 size_t size;
1521
1522 /* 'mask' is big enough to hold any key. */
1523 ofpbuf_use_stack(&maskbuf, mask, sizeof mask);
1524
1525 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
1526 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, &maskbuf);
1527 if (retval < 0) {
1528 return retval;
1529 }
1530 if (s[retval + 4] != ')') {
1531 return -EINVAL;
1532 }
1533
1534 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1535 key = nested + 1;
1536
1537 size = nl_attr_get_size(mask);
1538 if (size == nl_attr_get_size(key)) {
1539 /* Change to masked set action if not fully masked. */
1540 if (!is_all_ones(mask + 1, size)) {
1541 key->nla_len += size;
1542 ofpbuf_put(actions, mask + 1, size);
1543 /* 'actions' may have been reallocated by ofpbuf_put(). */
1544 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1545 nested->nla_type = OVS_ACTION_ATTR_SET_MASKED;
1546 }
1547 }
1548
1549 nl_msg_end_nested(actions, start_ofs);
1550 return retval + 5;
1551 }
1552
1553 {
1554 struct ovs_action_push_vlan push;
1555 int tpid = ETH_TYPE_VLAN;
1556 int vid, pcp;
1557 int cfi = 1;
1558 int n = -1;
1559
1560 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
1561 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
1562 &vid, &pcp, &cfi, &n)
1563 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
1564 &tpid, &vid, &pcp, &n)
1565 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
1566 &tpid, &vid, &pcp, &cfi, &n)) {
1567 push.vlan_tpid = htons(tpid);
1568 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
1569 | (pcp << VLAN_PCP_SHIFT)
1570 | (cfi ? VLAN_CFI : 0));
1571 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
1572 &push, sizeof push);
1573
1574 return n;
1575 }
1576 }
1577
1578 if (!strncmp(s, "pop_vlan", 8)) {
1579 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
1580 return 8;
1581 }
1582
1583 {
1584 double percentage;
1585 int n = -1;
1586
1587 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
1588 && percentage >= 0. && percentage <= 100.0) {
1589 size_t sample_ofs, actions_ofs;
1590 double probability;
1591
1592 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
1593 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
1594 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
1595 (probability <= 0 ? 0
1596 : probability >= UINT32_MAX ? UINT32_MAX
1597 : probability));
1598
1599 actions_ofs = nl_msg_start_nested(actions,
1600 OVS_SAMPLE_ATTR_ACTIONS);
1601 for (;;) {
1602 int retval;
1603
1604 n += strspn(s + n, delimiters);
1605 if (s[n] == ')') {
1606 break;
1607 }
1608
1609 retval = parse_odp_action(s + n, port_names, actions);
1610 if (retval < 0) {
1611 return retval;
1612 }
1613 n += retval;
1614 }
1615 nl_msg_end_nested(actions, actions_ofs);
1616 nl_msg_end_nested(actions, sample_ofs);
1617
1618 return s[n + 1] == ')' ? n + 2 : -EINVAL;
1619 }
1620 }
1621
1622 {
1623 uint32_t port;
1624 int n;
1625
1626 if (ovs_scan(s, "tnl_pop(%"SCNi32")%n", &port, &n)) {
1627 nl_msg_put_u32(actions, OVS_ACTION_ATTR_TUNNEL_POP, port);
1628 return n;
1629 }
1630 }
1631
1632 {
1633 int retval;
1634
1635 retval = parse_conntrack_action(s, actions);
1636 if (retval) {
1637 return retval;
1638 }
1639 }
1640
1641 {
1642 struct ovs_action_push_tnl data;
1643 int n;
1644
1645 n = ovs_parse_tnl_push(s, &data);
1646 if (n > 0) {
1647 odp_put_tnl_push_action(actions, &data);
1648 return n;
1649 } else if (n < 0) {
1650 return n;
1651 }
1652 }
1653 return -EINVAL;
1654 }
1655
1656 /* Parses the string representation of datapath actions, in the format output
1657 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
1658 * value. On success, the ODP actions are appended to 'actions' as a series of
1659 * Netlink attributes. On failure, no data is appended to 'actions'. Either
1660 * way, 'actions''s data might be reallocated. */
1661 int
1662 odp_actions_from_string(const char *s, const struct simap *port_names,
1663 struct ofpbuf *actions)
1664 {
1665 size_t old_size;
1666
1667 if (!strcasecmp(s, "drop")) {
1668 return 0;
1669 }
1670
1671 old_size = actions->size;
1672 for (;;) {
1673 int retval;
1674
1675 s += strspn(s, delimiters);
1676 if (!*s) {
1677 return 0;
1678 }
1679
1680 retval = parse_odp_action(s, port_names, actions);
1681 if (retval < 0 || !strchr(delimiters, s[retval])) {
1682 actions->size = old_size;
1683 return -retval;
1684 }
1685 s += retval;
1686 }
1687
1688 return 0;
1689 }
1690 \f
1691 static const struct attr_len_tbl ovs_vxlan_ext_attr_lens[OVS_VXLAN_EXT_MAX + 1] = {
1692 [OVS_VXLAN_EXT_GBP] = { .len = 4 },
1693 };
1694
1695 static const struct attr_len_tbl ovs_tun_key_attr_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
1696 [OVS_TUNNEL_KEY_ATTR_ID] = { .len = 8 },
1697 [OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = { .len = 4 },
1698 [OVS_TUNNEL_KEY_ATTR_IPV4_DST] = { .len = 4 },
1699 [OVS_TUNNEL_KEY_ATTR_TOS] = { .len = 1 },
1700 [OVS_TUNNEL_KEY_ATTR_TTL] = { .len = 1 },
1701 [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = { .len = 0 },
1702 [OVS_TUNNEL_KEY_ATTR_CSUM] = { .len = 0 },
1703 [OVS_TUNNEL_KEY_ATTR_TP_SRC] = { .len = 2 },
1704 [OVS_TUNNEL_KEY_ATTR_TP_DST] = { .len = 2 },
1705 [OVS_TUNNEL_KEY_ATTR_OAM] = { .len = 0 },
1706 [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = { .len = ATTR_LEN_VARIABLE },
1707 [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS] = { .len = ATTR_LEN_NESTED,
1708 .next = ovs_vxlan_ext_attr_lens ,
1709 .next_max = OVS_VXLAN_EXT_MAX},
1710 [OVS_TUNNEL_KEY_ATTR_IPV6_SRC] = { .len = 16 },
1711 [OVS_TUNNEL_KEY_ATTR_IPV6_DST] = { .len = 16 },
1712 };
1713
1714 static const struct attr_len_tbl ovs_flow_key_attr_lens[OVS_KEY_ATTR_MAX + 1] = {
1715 [OVS_KEY_ATTR_ENCAP] = { .len = ATTR_LEN_NESTED },
1716 [OVS_KEY_ATTR_PRIORITY] = { .len = 4 },
1717 [OVS_KEY_ATTR_SKB_MARK] = { .len = 4 },
1718 [OVS_KEY_ATTR_DP_HASH] = { .len = 4 },
1719 [OVS_KEY_ATTR_RECIRC_ID] = { .len = 4 },
1720 [OVS_KEY_ATTR_TUNNEL] = { .len = ATTR_LEN_NESTED,
1721 .next = ovs_tun_key_attr_lens,
1722 .next_max = OVS_TUNNEL_KEY_ATTR_MAX },
1723 [OVS_KEY_ATTR_IN_PORT] = { .len = 4 },
1724 [OVS_KEY_ATTR_ETHERNET] = { .len = sizeof(struct ovs_key_ethernet) },
1725 [OVS_KEY_ATTR_VLAN] = { .len = 2 },
1726 [OVS_KEY_ATTR_ETHERTYPE] = { .len = 2 },
1727 [OVS_KEY_ATTR_MPLS] = { .len = ATTR_LEN_VARIABLE },
1728 [OVS_KEY_ATTR_IPV4] = { .len = sizeof(struct ovs_key_ipv4) },
1729 [OVS_KEY_ATTR_IPV6] = { .len = sizeof(struct ovs_key_ipv6) },
1730 [OVS_KEY_ATTR_TCP] = { .len = sizeof(struct ovs_key_tcp) },
1731 [OVS_KEY_ATTR_TCP_FLAGS] = { .len = 2 },
1732 [OVS_KEY_ATTR_UDP] = { .len = sizeof(struct ovs_key_udp) },
1733 [OVS_KEY_ATTR_SCTP] = { .len = sizeof(struct ovs_key_sctp) },
1734 [OVS_KEY_ATTR_ICMP] = { .len = sizeof(struct ovs_key_icmp) },
1735 [OVS_KEY_ATTR_ICMPV6] = { .len = sizeof(struct ovs_key_icmpv6) },
1736 [OVS_KEY_ATTR_ARP] = { .len = sizeof(struct ovs_key_arp) },
1737 [OVS_KEY_ATTR_ND] = { .len = sizeof(struct ovs_key_nd) },
1738 [OVS_KEY_ATTR_CT_STATE] = { .len = 4 },
1739 [OVS_KEY_ATTR_CT_ZONE] = { .len = 2 },
1740 [OVS_KEY_ATTR_CT_MARK] = { .len = 4 },
1741 [OVS_KEY_ATTR_CT_LABELS] = { .len = sizeof(struct ovs_key_ct_labels) },
1742 };
1743
1744 /* Returns the correct length of the payload for a flow key attribute of the
1745 * specified 'type', ATTR_LEN_INVALID if 'type' is unknown, ATTR_LEN_VARIABLE
1746 * if the attribute's payload is variable length, or ATTR_LEN_NESTED if the
1747 * payload is a nested type. */
1748 static int
1749 odp_key_attr_len(const struct attr_len_tbl tbl[], int max_len, uint16_t type)
1750 {
1751 if (type > max_len) {
1752 return ATTR_LEN_INVALID;
1753 }
1754
1755 return tbl[type].len;
1756 }
1757
1758 static void
1759 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
1760 {
1761 size_t len = nl_attr_get_size(a);
1762 if (len) {
1763 const uint8_t *unspec;
1764 unsigned int i;
1765
1766 unspec = nl_attr_get(a);
1767 for (i = 0; i < len; i++) {
1768 if (i) {
1769 ds_put_char(ds, ' ');
1770 }
1771 ds_put_format(ds, "%02x", unspec[i]);
1772 }
1773 }
1774 }
1775
1776 static const char *
1777 ovs_frag_type_to_string(enum ovs_frag_type type)
1778 {
1779 switch (type) {
1780 case OVS_FRAG_TYPE_NONE:
1781 return "no";
1782 case OVS_FRAG_TYPE_FIRST:
1783 return "first";
1784 case OVS_FRAG_TYPE_LATER:
1785 return "later";
1786 case __OVS_FRAG_TYPE_MAX:
1787 default:
1788 return "<error>";
1789 }
1790 }
1791
1792 static enum odp_key_fitness
1793 odp_tun_key_from_attr__(const struct nlattr *attr,
1794 const struct nlattr *flow_attrs, size_t flow_attr_len,
1795 const struct flow_tnl *src_tun, struct flow_tnl *tun,
1796 bool udpif)
1797 {
1798 unsigned int left;
1799 const struct nlattr *a;
1800 bool ttl = false;
1801 bool unknown = false;
1802
1803 NL_NESTED_FOR_EACH(a, left, attr) {
1804 uint16_t type = nl_attr_type(a);
1805 size_t len = nl_attr_get_size(a);
1806 int expected_len = odp_key_attr_len(ovs_tun_key_attr_lens,
1807 OVS_TUNNEL_ATTR_MAX, type);
1808
1809 if (len != expected_len && expected_len >= 0) {
1810 return ODP_FIT_ERROR;
1811 }
1812
1813 switch (type) {
1814 case OVS_TUNNEL_KEY_ATTR_ID:
1815 tun->tun_id = nl_attr_get_be64(a);
1816 tun->flags |= FLOW_TNL_F_KEY;
1817 break;
1818 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
1819 tun->ip_src = nl_attr_get_be32(a);
1820 break;
1821 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
1822 tun->ip_dst = nl_attr_get_be32(a);
1823 break;
1824 case OVS_TUNNEL_KEY_ATTR_IPV6_SRC:
1825 tun->ipv6_src = nl_attr_get_in6_addr(a);
1826 break;
1827 case OVS_TUNNEL_KEY_ATTR_IPV6_DST:
1828 tun->ipv6_dst = nl_attr_get_in6_addr(a);
1829 break;
1830 case OVS_TUNNEL_KEY_ATTR_TOS:
1831 tun->ip_tos = nl_attr_get_u8(a);
1832 break;
1833 case OVS_TUNNEL_KEY_ATTR_TTL:
1834 tun->ip_ttl = nl_attr_get_u8(a);
1835 ttl = true;
1836 break;
1837 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
1838 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
1839 break;
1840 case OVS_TUNNEL_KEY_ATTR_CSUM:
1841 tun->flags |= FLOW_TNL_F_CSUM;
1842 break;
1843 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
1844 tun->tp_src = nl_attr_get_be16(a);
1845 break;
1846 case OVS_TUNNEL_KEY_ATTR_TP_DST:
1847 tun->tp_dst = nl_attr_get_be16(a);
1848 break;
1849 case OVS_TUNNEL_KEY_ATTR_OAM:
1850 tun->flags |= FLOW_TNL_F_OAM;
1851 break;
1852 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS: {
1853 static const struct nl_policy vxlan_opts_policy[] = {
1854 [OVS_VXLAN_EXT_GBP] = { .type = NL_A_U32 },
1855 };
1856 struct nlattr *ext[ARRAY_SIZE(vxlan_opts_policy)];
1857
1858 if (!nl_parse_nested(a, vxlan_opts_policy, ext, ARRAY_SIZE(ext))) {
1859 return ODP_FIT_ERROR;
1860 }
1861
1862 if (ext[OVS_VXLAN_EXT_GBP]) {
1863 uint32_t gbp = nl_attr_get_u32(ext[OVS_VXLAN_EXT_GBP]);
1864
1865 tun->gbp_id = htons(gbp & 0xFFFF);
1866 tun->gbp_flags = (gbp >> 16) & 0xFF;
1867 }
1868
1869 break;
1870 }
1871 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
1872 if (tun_metadata_from_geneve_nlattr(a, flow_attrs, flow_attr_len,
1873 src_tun, udpif, tun)) {
1874 return ODP_FIT_ERROR;
1875 }
1876 break;
1877
1878 default:
1879 /* Allow this to show up as unexpected, if there are unknown
1880 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1881 unknown = true;
1882 break;
1883 }
1884 }
1885
1886 if (!ttl) {
1887 return ODP_FIT_ERROR;
1888 }
1889 if (unknown) {
1890 return ODP_FIT_TOO_MUCH;
1891 }
1892 return ODP_FIT_PERFECT;
1893 }
1894
1895 enum odp_key_fitness
1896 odp_tun_key_from_attr(const struct nlattr *attr, bool udpif,
1897 struct flow_tnl *tun)
1898 {
1899 memset(tun, 0, sizeof *tun);
1900 return odp_tun_key_from_attr__(attr, NULL, 0, NULL, tun, udpif);
1901 }
1902
1903 static void
1904 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key,
1905 const struct flow_tnl *tun_flow_key,
1906 const struct ofpbuf *key_buf)
1907 {
1908 size_t tun_key_ofs;
1909
1910 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
1911
1912 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1913 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
1914 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
1915 }
1916 if (tun_key->ip_src) {
1917 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1918 }
1919 if (tun_key->ip_dst) {
1920 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1921 }
1922 if (ipv6_addr_is_set(&tun_key->ipv6_src)) {
1923 nl_msg_put_in6_addr(a, OVS_TUNNEL_KEY_ATTR_IPV6_SRC, &tun_key->ipv6_src);
1924 }
1925 if (ipv6_addr_is_set(&tun_key->ipv6_dst)) {
1926 nl_msg_put_in6_addr(a, OVS_TUNNEL_KEY_ATTR_IPV6_DST, &tun_key->ipv6_dst);
1927 }
1928 if (tun_key->ip_tos) {
1929 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1930 }
1931 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1932 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1933 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1934 }
1935 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1936 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1937 }
1938 if (tun_key->tp_src) {
1939 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1940 }
1941 if (tun_key->tp_dst) {
1942 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1943 }
1944 if (tun_key->flags & FLOW_TNL_F_OAM) {
1945 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1946 }
1947 if (tun_key->gbp_flags || tun_key->gbp_id) {
1948 size_t vxlan_opts_ofs;
1949
1950 vxlan_opts_ofs = nl_msg_start_nested(a, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
1951 nl_msg_put_u32(a, OVS_VXLAN_EXT_GBP,
1952 (tun_key->gbp_flags << 16) | ntohs(tun_key->gbp_id));
1953 nl_msg_end_nested(a, vxlan_opts_ofs);
1954 }
1955 tun_metadata_to_geneve_nlattr(tun_key, tun_flow_key, key_buf, a);
1956
1957 nl_msg_end_nested(a, tun_key_ofs);
1958 }
1959
1960 static bool
1961 odp_mask_attr_is_wildcard(const struct nlattr *ma)
1962 {
1963 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1964 }
1965
1966 static bool
1967 odp_mask_is_exact(enum ovs_key_attr attr, const void *mask, size_t size)
1968 {
1969 if (attr == OVS_KEY_ATTR_TCP_FLAGS) {
1970 return TCP_FLAGS(*(ovs_be16 *)mask) == TCP_FLAGS(OVS_BE16_MAX);
1971 }
1972 if (attr == OVS_KEY_ATTR_IPV6) {
1973 const struct ovs_key_ipv6 *ipv6_mask = mask;
1974
1975 return
1976 ((ipv6_mask->ipv6_label & htonl(IPV6_LABEL_MASK))
1977 == htonl(IPV6_LABEL_MASK))
1978 && ipv6_mask->ipv6_proto == UINT8_MAX
1979 && ipv6_mask->ipv6_tclass == UINT8_MAX
1980 && ipv6_mask->ipv6_hlimit == UINT8_MAX
1981 && ipv6_mask->ipv6_frag == UINT8_MAX
1982 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_src)
1983 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_dst);
1984 }
1985 if (attr == OVS_KEY_ATTR_TUNNEL) {
1986 return false;
1987 }
1988
1989 if (attr == OVS_KEY_ATTR_ARP) {
1990 /* ARP key has padding, ignore it. */
1991 BUILD_ASSERT_DECL(sizeof(struct ovs_key_arp) == 24);
1992 BUILD_ASSERT_DECL(offsetof(struct ovs_key_arp, arp_tha) == 10 + 6);
1993 size = offsetof(struct ovs_key_arp, arp_tha) + ETH_ADDR_LEN;
1994 ovs_assert(((uint16_t *)mask)[size/2] == 0);
1995 }
1996
1997 return is_all_ones(mask, size);
1998 }
1999
2000 static bool
2001 odp_mask_attr_is_exact(const struct nlattr *ma)
2002 {
2003 enum ovs_key_attr attr = nl_attr_type(ma);
2004 const void *mask;
2005 size_t size;
2006
2007 if (attr == OVS_KEY_ATTR_TUNNEL) {
2008 return false;
2009 } else {
2010 mask = nl_attr_get(ma);
2011 size = nl_attr_get_size(ma);
2012 }
2013
2014 return odp_mask_is_exact(attr, mask, size);
2015 }
2016
2017 void
2018 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
2019 char *port_name)
2020 {
2021 struct odp_portno_names *odp_portno_names;
2022
2023 odp_portno_names = xmalloc(sizeof *odp_portno_names);
2024 odp_portno_names->port_no = port_no;
2025 odp_portno_names->name = xstrdup(port_name);
2026 hmap_insert(portno_names, &odp_portno_names->hmap_node,
2027 hash_odp_port(port_no));
2028 }
2029
2030 static char *
2031 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
2032 {
2033 struct odp_portno_names *odp_portno_names;
2034
2035 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
2036 hash_odp_port(port_no), portno_names) {
2037 if (odp_portno_names->port_no == port_no) {
2038 return odp_portno_names->name;
2039 }
2040 }
2041 return NULL;
2042 }
2043
2044 void
2045 odp_portno_names_destroy(struct hmap *portno_names)
2046 {
2047 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
2048 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
2049 hmap_node, portno_names) {
2050 hmap_remove(portno_names, &odp_portno_names->hmap_node);
2051 free(odp_portno_names->name);
2052 free(odp_portno_names);
2053 }
2054 }
2055
2056 /* Format helpers. */
2057
2058 static void
2059 format_eth(struct ds *ds, const char *name, const struct eth_addr key,
2060 const struct eth_addr *mask, bool verbose)
2061 {
2062 bool mask_empty = mask && eth_addr_is_zero(*mask);
2063
2064 if (verbose || !mask_empty) {
2065 bool mask_full = !mask || eth_mask_is_exact(*mask);
2066
2067 if (mask_full) {
2068 ds_put_format(ds, "%s="ETH_ADDR_FMT",", name, ETH_ADDR_ARGS(key));
2069 } else {
2070 ds_put_format(ds, "%s=", name);
2071 eth_format_masked(key, mask, ds);
2072 ds_put_char(ds, ',');
2073 }
2074 }
2075 }
2076
2077 static void
2078 format_be64(struct ds *ds, const char *name, ovs_be64 key,
2079 const ovs_be64 *mask, bool verbose)
2080 {
2081 bool mask_empty = mask && !*mask;
2082
2083 if (verbose || !mask_empty) {
2084 bool mask_full = !mask || *mask == OVS_BE64_MAX;
2085
2086 ds_put_format(ds, "%s=0x%"PRIx64, name, ntohll(key));
2087 if (!mask_full) { /* Partially masked. */
2088 ds_put_format(ds, "/%#"PRIx64, ntohll(*mask));
2089 }
2090 ds_put_char(ds, ',');
2091 }
2092 }
2093
2094 static void
2095 format_ipv4(struct ds *ds, const char *name, ovs_be32 key,
2096 const ovs_be32 *mask, bool verbose)
2097 {
2098 bool mask_empty = mask && !*mask;
2099
2100 if (verbose || !mask_empty) {
2101 bool mask_full = !mask || *mask == OVS_BE32_MAX;
2102
2103 ds_put_format(ds, "%s="IP_FMT, name, IP_ARGS(key));
2104 if (!mask_full) { /* Partially masked. */
2105 ds_put_format(ds, "/"IP_FMT, IP_ARGS(*mask));
2106 }
2107 ds_put_char(ds, ',');
2108 }
2109 }
2110
2111 static void
2112 format_in6_addr(struct ds *ds, const char *name,
2113 const struct in6_addr *key,
2114 const struct in6_addr *mask,
2115 bool verbose)
2116 {
2117 char buf[INET6_ADDRSTRLEN];
2118 bool mask_empty = mask && ipv6_mask_is_any(mask);
2119
2120 if (verbose || !mask_empty) {
2121 bool mask_full = !mask || ipv6_mask_is_exact(mask);
2122
2123 inet_ntop(AF_INET6, key, buf, sizeof buf);
2124 ds_put_format(ds, "%s=%s", name, buf);
2125 if (!mask_full) { /* Partially masked. */
2126 inet_ntop(AF_INET6, mask, buf, sizeof buf);
2127 ds_put_format(ds, "/%s", buf);
2128 }
2129 ds_put_char(ds, ',');
2130 }
2131 }
2132
2133 static void
2134 format_ipv6(struct ds *ds, const char *name, const ovs_be32 key_[4],
2135 const ovs_be32 (*mask_)[4], bool verbose)
2136 {
2137 format_in6_addr(ds, name,
2138 (const struct in6_addr *)key_,
2139 mask_ ? (const struct in6_addr *)*mask_ : NULL,
2140 verbose);
2141 }
2142
2143 static void
2144 format_ipv6_label(struct ds *ds, const char *name, ovs_be32 key,
2145 const ovs_be32 *mask, bool verbose)
2146 {
2147 bool mask_empty = mask && !*mask;
2148
2149 if (verbose || !mask_empty) {
2150 bool mask_full = !mask
2151 || (*mask & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK);
2152
2153 ds_put_format(ds, "%s=%#"PRIx32, name, ntohl(key));
2154 if (!mask_full) { /* Partially masked. */
2155 ds_put_format(ds, "/%#"PRIx32, ntohl(*mask));
2156 }
2157 ds_put_char(ds, ',');
2158 }
2159 }
2160
2161 static void
2162 format_u8x(struct ds *ds, const char *name, uint8_t key,
2163 const uint8_t *mask, bool verbose)
2164 {
2165 bool mask_empty = mask && !*mask;
2166
2167 if (verbose || !mask_empty) {
2168 bool mask_full = !mask || *mask == UINT8_MAX;
2169
2170 ds_put_format(ds, "%s=%#"PRIx8, name, key);
2171 if (!mask_full) { /* Partially masked. */
2172 ds_put_format(ds, "/%#"PRIx8, *mask);
2173 }
2174 ds_put_char(ds, ',');
2175 }
2176 }
2177
2178 static void
2179 format_u8u(struct ds *ds, const char *name, uint8_t key,
2180 const uint8_t *mask, bool verbose)
2181 {
2182 bool mask_empty = mask && !*mask;
2183
2184 if (verbose || !mask_empty) {
2185 bool mask_full = !mask || *mask == UINT8_MAX;
2186
2187 ds_put_format(ds, "%s=%"PRIu8, name, key);
2188 if (!mask_full) { /* Partially masked. */
2189 ds_put_format(ds, "/%#"PRIx8, *mask);
2190 }
2191 ds_put_char(ds, ',');
2192 }
2193 }
2194
2195 static void
2196 format_be16(struct ds *ds, const char *name, ovs_be16 key,
2197 const ovs_be16 *mask, bool verbose)
2198 {
2199 bool mask_empty = mask && !*mask;
2200
2201 if (verbose || !mask_empty) {
2202 bool mask_full = !mask || *mask == OVS_BE16_MAX;
2203
2204 ds_put_format(ds, "%s=%"PRIu16, name, ntohs(key));
2205 if (!mask_full) { /* Partially masked. */
2206 ds_put_format(ds, "/%#"PRIx16, ntohs(*mask));
2207 }
2208 ds_put_char(ds, ',');
2209 }
2210 }
2211
2212 static void
2213 format_be16x(struct ds *ds, const char *name, ovs_be16 key,
2214 const ovs_be16 *mask, bool verbose)
2215 {
2216 bool mask_empty = mask && !*mask;
2217
2218 if (verbose || !mask_empty) {
2219 bool mask_full = !mask || *mask == OVS_BE16_MAX;
2220
2221 ds_put_format(ds, "%s=%#"PRIx16, name, ntohs(key));
2222 if (!mask_full) { /* Partially masked. */
2223 ds_put_format(ds, "/%#"PRIx16, ntohs(*mask));
2224 }
2225 ds_put_char(ds, ',');
2226 }
2227 }
2228
2229 static void
2230 format_tun_flags(struct ds *ds, const char *name, uint16_t key,
2231 const uint16_t *mask, bool verbose)
2232 {
2233 bool mask_empty = mask && !*mask;
2234
2235 if (verbose || !mask_empty) {
2236 ds_put_cstr(ds, name);
2237 ds_put_char(ds, '(');
2238 if (mask) {
2239 format_flags_masked(ds, NULL, flow_tun_flag_to_string, key,
2240 *mask & FLOW_TNL_F_MASK, FLOW_TNL_F_MASK);
2241 } else { /* Fully masked. */
2242 format_flags(ds, flow_tun_flag_to_string, key, '|');
2243 }
2244 ds_put_cstr(ds, "),");
2245 }
2246 }
2247
2248 static bool
2249 check_attr_len(struct ds *ds, const struct nlattr *a, const struct nlattr *ma,
2250 const struct attr_len_tbl tbl[], int max_len, bool need_key)
2251 {
2252 int expected_len;
2253
2254 expected_len = odp_key_attr_len(tbl, max_len, nl_attr_type(a));
2255 if (expected_len != ATTR_LEN_VARIABLE &&
2256 expected_len != ATTR_LEN_NESTED) {
2257
2258 bool bad_key_len = nl_attr_get_size(a) != expected_len;
2259 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
2260
2261 if (bad_key_len || bad_mask_len) {
2262 if (need_key) {
2263 ds_put_format(ds, "key%u", nl_attr_type(a));
2264 }
2265 if (bad_key_len) {
2266 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
2267 nl_attr_get_size(a), expected_len);
2268 }
2269 format_generic_odp_key(a, ds);
2270 if (ma) {
2271 ds_put_char(ds, '/');
2272 if (bad_mask_len) {
2273 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
2274 nl_attr_get_size(ma), expected_len);
2275 }
2276 format_generic_odp_key(ma, ds);
2277 }
2278 ds_put_char(ds, ')');
2279 return false;
2280 }
2281 }
2282
2283 return true;
2284 }
2285
2286 static void
2287 format_unknown_key(struct ds *ds, const struct nlattr *a,
2288 const struct nlattr *ma)
2289 {
2290 ds_put_format(ds, "key%u(", nl_attr_type(a));
2291 format_generic_odp_key(a, ds);
2292 if (ma && !odp_mask_attr_is_exact(ma)) {
2293 ds_put_char(ds, '/');
2294 format_generic_odp_key(ma, ds);
2295 }
2296 ds_put_cstr(ds, "),");
2297 }
2298
2299 static void
2300 format_odp_tun_vxlan_opt(const struct nlattr *attr,
2301 const struct nlattr *mask_attr, struct ds *ds,
2302 bool verbose)
2303 {
2304 unsigned int left;
2305 const struct nlattr *a;
2306 struct ofpbuf ofp;
2307
2308 ofpbuf_init(&ofp, 100);
2309 NL_NESTED_FOR_EACH(a, left, attr) {
2310 uint16_t type = nl_attr_type(a);
2311 const struct nlattr *ma = NULL;
2312
2313 if (mask_attr) {
2314 ma = nl_attr_find__(nl_attr_get(mask_attr),
2315 nl_attr_get_size(mask_attr), type);
2316 if (!ma) {
2317 ma = generate_all_wildcard_mask(ovs_vxlan_ext_attr_lens,
2318 OVS_VXLAN_EXT_MAX,
2319 &ofp, a);
2320 }
2321 }
2322
2323 if (!check_attr_len(ds, a, ma, ovs_vxlan_ext_attr_lens,
2324 OVS_VXLAN_EXT_MAX, true)) {
2325 continue;
2326 }
2327
2328 switch (type) {
2329 case OVS_VXLAN_EXT_GBP: {
2330 uint32_t key = nl_attr_get_u32(a);
2331 ovs_be16 id, id_mask;
2332 uint8_t flags, flags_mask;
2333
2334 id = htons(key & 0xFFFF);
2335 flags = (key >> 16) & 0xFF;
2336 if (ma) {
2337 uint32_t mask = nl_attr_get_u32(ma);
2338 id_mask = htons(mask & 0xFFFF);
2339 flags_mask = (mask >> 16) & 0xFF;
2340 }
2341
2342 ds_put_cstr(ds, "gbp(");
2343 format_be16(ds, "id", id, ma ? &id_mask : NULL, verbose);
2344 format_u8x(ds, "flags", flags, ma ? &flags_mask : NULL, verbose);
2345 ds_chomp(ds, ',');
2346 ds_put_cstr(ds, "),");
2347 break;
2348 }
2349
2350 default:
2351 format_unknown_key(ds, a, ma);
2352 }
2353 ofpbuf_clear(&ofp);
2354 }
2355
2356 ds_chomp(ds, ',');
2357 ofpbuf_uninit(&ofp);
2358 }
2359
2360 #define MASK(PTR, FIELD) PTR ? &PTR->FIELD : NULL
2361
2362 static void
2363 format_geneve_opts(const struct geneve_opt *opt,
2364 const struct geneve_opt *mask, int opts_len,
2365 struct ds *ds, bool verbose)
2366 {
2367 while (opts_len > 0) {
2368 unsigned int len;
2369 uint8_t data_len, data_len_mask;
2370
2371 if (opts_len < sizeof *opt) {
2372 ds_put_format(ds, "opt len %u less than minimum %"PRIuSIZE,
2373 opts_len, sizeof *opt);
2374 return;
2375 }
2376
2377 data_len = opt->length * 4;
2378 if (mask) {
2379 if (mask->length == 0x1f) {
2380 data_len_mask = UINT8_MAX;
2381 } else {
2382 data_len_mask = mask->length;
2383 }
2384 }
2385 len = sizeof *opt + data_len;
2386 if (len > opts_len) {
2387 ds_put_format(ds, "opt len %u greater than remaining %u",
2388 len, opts_len);
2389 return;
2390 }
2391
2392 ds_put_char(ds, '{');
2393 format_be16x(ds, "class", opt->opt_class, MASK(mask, opt_class),
2394 verbose);
2395 format_u8x(ds, "type", opt->type, MASK(mask, type), verbose);
2396 format_u8u(ds, "len", data_len, mask ? &data_len_mask : NULL, verbose);
2397 if (data_len &&
2398 (verbose || !mask || !is_all_zeros(mask + 1, data_len))) {
2399 ds_put_hex(ds, opt + 1, data_len);
2400 if (mask && !is_all_ones(mask + 1, data_len)) {
2401 ds_put_char(ds, '/');
2402 ds_put_hex(ds, mask + 1, data_len);
2403 }
2404 } else {
2405 ds_chomp(ds, ',');
2406 }
2407 ds_put_char(ds, '}');
2408
2409 opt += len / sizeof(*opt);
2410 if (mask) {
2411 mask += len / sizeof(*opt);
2412 }
2413 opts_len -= len;
2414 };
2415 }
2416
2417 static void
2418 format_odp_tun_geneve(const struct nlattr *attr,
2419 const struct nlattr *mask_attr, struct ds *ds,
2420 bool verbose)
2421 {
2422 int opts_len = nl_attr_get_size(attr);
2423 const struct geneve_opt *opt = nl_attr_get(attr);
2424 const struct geneve_opt *mask = mask_attr ?
2425 nl_attr_get(mask_attr) : NULL;
2426
2427 if (mask && nl_attr_get_size(attr) != nl_attr_get_size(mask_attr)) {
2428 ds_put_format(ds, "value len %"PRIuSIZE" different from mask len %"PRIuSIZE,
2429 nl_attr_get_size(attr), nl_attr_get_size(mask_attr));
2430 return;
2431 }
2432
2433 format_geneve_opts(opt, mask, opts_len, ds, verbose);
2434 }
2435
2436 static void
2437 format_odp_tun_attr(const struct nlattr *attr, const struct nlattr *mask_attr,
2438 struct ds *ds, bool verbose)
2439 {
2440 unsigned int left;
2441 const struct nlattr *a;
2442 uint16_t flags = 0;
2443 uint16_t mask_flags = 0;
2444 struct ofpbuf ofp;
2445
2446 ofpbuf_init(&ofp, 100);
2447 NL_NESTED_FOR_EACH(a, left, attr) {
2448 enum ovs_tunnel_key_attr type = nl_attr_type(a);
2449 const struct nlattr *ma = NULL;
2450
2451 if (mask_attr) {
2452 ma = nl_attr_find__(nl_attr_get(mask_attr),
2453 nl_attr_get_size(mask_attr), type);
2454 if (!ma) {
2455 ma = generate_all_wildcard_mask(ovs_tun_key_attr_lens,
2456 OVS_TUNNEL_KEY_ATTR_MAX,
2457 &ofp, a);
2458 }
2459 }
2460
2461 if (!check_attr_len(ds, a, ma, ovs_tun_key_attr_lens,
2462 OVS_TUNNEL_KEY_ATTR_MAX, true)) {
2463 continue;
2464 }
2465
2466 switch (type) {
2467 case OVS_TUNNEL_KEY_ATTR_ID:
2468 format_be64(ds, "tun_id", nl_attr_get_be64(a),
2469 ma ? nl_attr_get(ma) : NULL, verbose);
2470 flags |= FLOW_TNL_F_KEY;
2471 if (ma) {
2472 mask_flags |= FLOW_TNL_F_KEY;
2473 }
2474 break;
2475 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
2476 format_ipv4(ds, "src", nl_attr_get_be32(a),
2477 ma ? nl_attr_get(ma) : NULL, verbose);
2478 break;
2479 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
2480 format_ipv4(ds, "dst", nl_attr_get_be32(a),
2481 ma ? nl_attr_get(ma) : NULL, verbose);
2482 break;
2483 case OVS_TUNNEL_KEY_ATTR_IPV6_SRC: {
2484 struct in6_addr ipv6_src;
2485 ipv6_src = nl_attr_get_in6_addr(a);
2486 format_in6_addr(ds, "ipv6_src", &ipv6_src,
2487 ma ? nl_attr_get(ma) : NULL, verbose);
2488 break;
2489 }
2490 case OVS_TUNNEL_KEY_ATTR_IPV6_DST: {
2491 struct in6_addr ipv6_dst;
2492 ipv6_dst = nl_attr_get_in6_addr(a);
2493 format_in6_addr(ds, "ipv6_dst", &ipv6_dst,
2494 ma ? nl_attr_get(ma) : NULL, verbose);
2495 break;
2496 }
2497 case OVS_TUNNEL_KEY_ATTR_TOS:
2498 format_u8x(ds, "tos", nl_attr_get_u8(a),
2499 ma ? nl_attr_get(ma) : NULL, verbose);
2500 break;
2501 case OVS_TUNNEL_KEY_ATTR_TTL:
2502 format_u8u(ds, "ttl", nl_attr_get_u8(a),
2503 ma ? nl_attr_get(ma) : NULL, verbose);
2504 break;
2505 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
2506 flags |= FLOW_TNL_F_DONT_FRAGMENT;
2507 break;
2508 case OVS_TUNNEL_KEY_ATTR_CSUM:
2509 flags |= FLOW_TNL_F_CSUM;
2510 break;
2511 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
2512 format_be16(ds, "tp_src", nl_attr_get_be16(a),
2513 ma ? nl_attr_get(ma) : NULL, verbose);
2514 break;
2515 case OVS_TUNNEL_KEY_ATTR_TP_DST:
2516 format_be16(ds, "tp_dst", nl_attr_get_be16(a),
2517 ma ? nl_attr_get(ma) : NULL, verbose);
2518 break;
2519 case OVS_TUNNEL_KEY_ATTR_OAM:
2520 flags |= FLOW_TNL_F_OAM;
2521 break;
2522 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS:
2523 ds_put_cstr(ds, "vxlan(");
2524 format_odp_tun_vxlan_opt(a, ma, ds, verbose);
2525 ds_put_cstr(ds, "),");
2526 break;
2527 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
2528 ds_put_cstr(ds, "geneve(");
2529 format_odp_tun_geneve(a, ma, ds, verbose);
2530 ds_put_cstr(ds, "),");
2531 break;
2532 case __OVS_TUNNEL_KEY_ATTR_MAX:
2533 default:
2534 format_unknown_key(ds, a, ma);
2535 }
2536 ofpbuf_clear(&ofp);
2537 }
2538
2539 /* Flags can have a valid mask even if the attribute is not set, so
2540 * we need to collect these separately. */
2541 if (mask_attr) {
2542 NL_NESTED_FOR_EACH(a, left, mask_attr) {
2543 switch (nl_attr_type(a)) {
2544 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
2545 mask_flags |= FLOW_TNL_F_DONT_FRAGMENT;
2546 break;
2547 case OVS_TUNNEL_KEY_ATTR_CSUM:
2548 mask_flags |= FLOW_TNL_F_CSUM;
2549 break;
2550 case OVS_TUNNEL_KEY_ATTR_OAM:
2551 mask_flags |= FLOW_TNL_F_OAM;
2552 break;
2553 }
2554 }
2555 }
2556
2557 format_tun_flags(ds, "flags", flags, mask_attr ? &mask_flags : NULL,
2558 verbose);
2559 ds_chomp(ds, ',');
2560 ofpbuf_uninit(&ofp);
2561 }
2562
2563 static const char *
2564 odp_ct_state_to_string(uint32_t flag)
2565 {
2566 switch (flag) {
2567 case OVS_CS_F_REPLY_DIR:
2568 return "rpl";
2569 case OVS_CS_F_TRACKED:
2570 return "trk";
2571 case OVS_CS_F_NEW:
2572 return "new";
2573 case OVS_CS_F_ESTABLISHED:
2574 return "est";
2575 case OVS_CS_F_RELATED:
2576 return "rel";
2577 case OVS_CS_F_INVALID:
2578 return "inv";
2579 default:
2580 return NULL;
2581 }
2582 }
2583
2584 static void
2585 format_frag(struct ds *ds, const char *name, uint8_t key,
2586 const uint8_t *mask, bool verbose)
2587 {
2588 bool mask_empty = mask && !*mask;
2589
2590 /* ODP frag is an enumeration field; partial masks are not meaningful. */
2591 if (verbose || !mask_empty) {
2592 bool mask_full = !mask || *mask == UINT8_MAX;
2593
2594 if (!mask_full) { /* Partially masked. */
2595 ds_put_format(ds, "error: partial mask not supported for frag (%#"
2596 PRIx8"),", *mask);
2597 } else {
2598 ds_put_format(ds, "%s=%s,", name, ovs_frag_type_to_string(key));
2599 }
2600 }
2601 }
2602
2603 static bool
2604 mask_empty(const struct nlattr *ma)
2605 {
2606 const void *mask;
2607 size_t n;
2608
2609 if (!ma) {
2610 return true;
2611 }
2612 mask = nl_attr_get(ma);
2613 n = nl_attr_get_size(ma);
2614
2615 return is_all_zeros(mask, n);
2616 }
2617
2618 static void
2619 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
2620 const struct hmap *portno_names, struct ds *ds,
2621 bool verbose)
2622 {
2623 enum ovs_key_attr attr = nl_attr_type(a);
2624 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2625 bool is_exact;
2626
2627 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
2628
2629 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
2630
2631 if (!check_attr_len(ds, a, ma, ovs_flow_key_attr_lens,
2632 OVS_KEY_ATTR_MAX, false)) {
2633 return;
2634 }
2635
2636 ds_put_char(ds, '(');
2637 switch (attr) {
2638 case OVS_KEY_ATTR_ENCAP:
2639 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
2640 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
2641 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
2642 verbose);
2643 } else if (nl_attr_get_size(a)) {
2644 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
2645 ds, verbose);
2646 }
2647 break;
2648
2649 case OVS_KEY_ATTR_PRIORITY:
2650 case OVS_KEY_ATTR_SKB_MARK:
2651 case OVS_KEY_ATTR_DP_HASH:
2652 case OVS_KEY_ATTR_RECIRC_ID:
2653 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2654 if (!is_exact) {
2655 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2656 }
2657 break;
2658
2659 case OVS_KEY_ATTR_CT_MARK:
2660 if (verbose || !mask_empty(ma)) {
2661 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2662 if (!is_exact) {
2663 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2664 }
2665 }
2666 break;
2667
2668 case OVS_KEY_ATTR_CT_STATE:
2669 if (verbose) {
2670 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2671 if (!is_exact) {
2672 ds_put_format(ds, "/%#"PRIx32,
2673 mask_empty(ma) ? 0 : nl_attr_get_u32(ma));
2674 }
2675 } else if (!is_exact) {
2676 format_flags_masked(ds, NULL, odp_ct_state_to_string,
2677 nl_attr_get_u32(a),
2678 mask_empty(ma) ? 0 : nl_attr_get_u32(ma),
2679 UINT32_MAX);
2680 } else {
2681 format_flags(ds, odp_ct_state_to_string, nl_attr_get_u32(a), '|');
2682 }
2683 break;
2684
2685 case OVS_KEY_ATTR_CT_ZONE:
2686 if (verbose || !mask_empty(ma)) {
2687 ds_put_format(ds, "%#"PRIx16, nl_attr_get_u16(a));
2688 if (!is_exact) {
2689 ds_put_format(ds, "/%#"PRIx16, nl_attr_get_u16(ma));
2690 }
2691 }
2692 break;
2693
2694 case OVS_KEY_ATTR_CT_LABELS: {
2695 const ovs_u128 *value = nl_attr_get(a);
2696 const ovs_u128 *mask = ma ? nl_attr_get(ma) : NULL;
2697
2698 format_u128(ds, value, mask, verbose);
2699 break;
2700 }
2701
2702 case OVS_KEY_ATTR_TUNNEL:
2703 format_odp_tun_attr(a, ma, ds, verbose);
2704 break;
2705
2706 case OVS_KEY_ATTR_IN_PORT:
2707 if (portno_names && verbose && is_exact) {
2708 char *name = odp_portno_names_get(portno_names,
2709 u32_to_odp(nl_attr_get_u32(a)));
2710 if (name) {
2711 ds_put_format(ds, "%s", name);
2712 } else {
2713 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
2714 }
2715 } else {
2716 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
2717 if (!is_exact) {
2718 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2719 }
2720 }
2721 break;
2722
2723 case OVS_KEY_ATTR_ETHERNET: {
2724 const struct ovs_key_ethernet *mask = ma ? nl_attr_get(ma) : NULL;
2725 const struct ovs_key_ethernet *key = nl_attr_get(a);
2726
2727 format_eth(ds, "src", key->eth_src, MASK(mask, eth_src), verbose);
2728 format_eth(ds, "dst", key->eth_dst, MASK(mask, eth_dst), verbose);
2729 ds_chomp(ds, ',');
2730 break;
2731 }
2732 case OVS_KEY_ATTR_VLAN:
2733 format_vlan_tci(ds, nl_attr_get_be16(a),
2734 ma ? nl_attr_get_be16(ma) : OVS_BE16_MAX, verbose);
2735 break;
2736
2737 case OVS_KEY_ATTR_MPLS: {
2738 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
2739 const struct ovs_key_mpls *mpls_mask = NULL;
2740 size_t size = nl_attr_get_size(a);
2741
2742 if (!size || size % sizeof *mpls_key) {
2743 ds_put_format(ds, "(bad key length %"PRIuSIZE")", size);
2744 return;
2745 }
2746 if (!is_exact) {
2747 mpls_mask = nl_attr_get(ma);
2748 if (size != nl_attr_get_size(ma)) {
2749 ds_put_format(ds, "(key length %"PRIuSIZE" != "
2750 "mask length %"PRIuSIZE")",
2751 size, nl_attr_get_size(ma));
2752 return;
2753 }
2754 }
2755 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
2756 break;
2757 }
2758 case OVS_KEY_ATTR_ETHERTYPE:
2759 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
2760 if (!is_exact) {
2761 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
2762 }
2763 break;
2764
2765 case OVS_KEY_ATTR_IPV4: {
2766 const struct ovs_key_ipv4 *key = nl_attr_get(a);
2767 const struct ovs_key_ipv4 *mask = ma ? nl_attr_get(ma) : NULL;
2768
2769 format_ipv4(ds, "src", key->ipv4_src, MASK(mask, ipv4_src), verbose);
2770 format_ipv4(ds, "dst", key->ipv4_dst, MASK(mask, ipv4_dst), verbose);
2771 format_u8u(ds, "proto", key->ipv4_proto, MASK(mask, ipv4_proto),
2772 verbose);
2773 format_u8x(ds, "tos", key->ipv4_tos, MASK(mask, ipv4_tos), verbose);
2774 format_u8u(ds, "ttl", key->ipv4_ttl, MASK(mask, ipv4_ttl), verbose);
2775 format_frag(ds, "frag", key->ipv4_frag, MASK(mask, ipv4_frag),
2776 verbose);
2777 ds_chomp(ds, ',');
2778 break;
2779 }
2780 case OVS_KEY_ATTR_IPV6: {
2781 const struct ovs_key_ipv6 *key = nl_attr_get(a);
2782 const struct ovs_key_ipv6 *mask = ma ? nl_attr_get(ma) : NULL;
2783
2784 format_ipv6(ds, "src", key->ipv6_src, MASK(mask, ipv6_src), verbose);
2785 format_ipv6(ds, "dst", key->ipv6_dst, MASK(mask, ipv6_dst), verbose);
2786 format_ipv6_label(ds, "label", key->ipv6_label, MASK(mask, ipv6_label),
2787 verbose);
2788 format_u8u(ds, "proto", key->ipv6_proto, MASK(mask, ipv6_proto),
2789 verbose);
2790 format_u8x(ds, "tclass", key->ipv6_tclass, MASK(mask, ipv6_tclass),
2791 verbose);
2792 format_u8u(ds, "hlimit", key->ipv6_hlimit, MASK(mask, ipv6_hlimit),
2793 verbose);
2794 format_frag(ds, "frag", key->ipv6_frag, MASK(mask, ipv6_frag),
2795 verbose);
2796 ds_chomp(ds, ',');
2797 break;
2798 }
2799 /* These have the same structure and format. */
2800 case OVS_KEY_ATTR_TCP:
2801 case OVS_KEY_ATTR_UDP:
2802 case OVS_KEY_ATTR_SCTP: {
2803 const struct ovs_key_tcp *key = nl_attr_get(a);
2804 const struct ovs_key_tcp *mask = ma ? nl_attr_get(ma) : NULL;
2805
2806 format_be16(ds, "src", key->tcp_src, MASK(mask, tcp_src), verbose);
2807 format_be16(ds, "dst", key->tcp_dst, MASK(mask, tcp_dst), verbose);
2808 ds_chomp(ds, ',');
2809 break;
2810 }
2811 case OVS_KEY_ATTR_TCP_FLAGS:
2812 if (!is_exact) {
2813 format_flags_masked(ds, NULL, packet_tcp_flag_to_string,
2814 ntohs(nl_attr_get_be16(a)),
2815 TCP_FLAGS(nl_attr_get_be16(ma)),
2816 TCP_FLAGS(OVS_BE16_MAX));
2817 } else {
2818 format_flags(ds, packet_tcp_flag_to_string,
2819 ntohs(nl_attr_get_be16(a)), '|');
2820 }
2821 break;
2822
2823 case OVS_KEY_ATTR_ICMP: {
2824 const struct ovs_key_icmp *key = nl_attr_get(a);
2825 const struct ovs_key_icmp *mask = ma ? nl_attr_get(ma) : NULL;
2826
2827 format_u8u(ds, "type", key->icmp_type, MASK(mask, icmp_type), verbose);
2828 format_u8u(ds, "code", key->icmp_code, MASK(mask, icmp_code), verbose);
2829 ds_chomp(ds, ',');
2830 break;
2831 }
2832 case OVS_KEY_ATTR_ICMPV6: {
2833 const struct ovs_key_icmpv6 *key = nl_attr_get(a);
2834 const struct ovs_key_icmpv6 *mask = ma ? nl_attr_get(ma) : NULL;
2835
2836 format_u8u(ds, "type", key->icmpv6_type, MASK(mask, icmpv6_type),
2837 verbose);
2838 format_u8u(ds, "code", key->icmpv6_code, MASK(mask, icmpv6_code),
2839 verbose);
2840 ds_chomp(ds, ',');
2841 break;
2842 }
2843 case OVS_KEY_ATTR_ARP: {
2844 const struct ovs_key_arp *mask = ma ? nl_attr_get(ma) : NULL;
2845 const struct ovs_key_arp *key = nl_attr_get(a);
2846
2847 format_ipv4(ds, "sip", key->arp_sip, MASK(mask, arp_sip), verbose);
2848 format_ipv4(ds, "tip", key->arp_tip, MASK(mask, arp_tip), verbose);
2849 format_be16(ds, "op", key->arp_op, MASK(mask, arp_op), verbose);
2850 format_eth(ds, "sha", key->arp_sha, MASK(mask, arp_sha), verbose);
2851 format_eth(ds, "tha", key->arp_tha, MASK(mask, arp_tha), verbose);
2852 ds_chomp(ds, ',');
2853 break;
2854 }
2855 case OVS_KEY_ATTR_ND: {
2856 const struct ovs_key_nd *mask = ma ? nl_attr_get(ma) : NULL;
2857 const struct ovs_key_nd *key = nl_attr_get(a);
2858
2859 format_ipv6(ds, "target", key->nd_target, MASK(mask, nd_target),
2860 verbose);
2861 format_eth(ds, "sll", key->nd_sll, MASK(mask, nd_sll), verbose);
2862 format_eth(ds, "tll", key->nd_tll, MASK(mask, nd_tll), verbose);
2863
2864 ds_chomp(ds, ',');
2865 break;
2866 }
2867 case OVS_KEY_ATTR_UNSPEC:
2868 case __OVS_KEY_ATTR_MAX:
2869 default:
2870 format_generic_odp_key(a, ds);
2871 if (!is_exact) {
2872 ds_put_char(ds, '/');
2873 format_generic_odp_key(ma, ds);
2874 }
2875 break;
2876 }
2877 ds_put_char(ds, ')');
2878 }
2879
2880 static struct nlattr *
2881 generate_all_wildcard_mask(const struct attr_len_tbl tbl[], int max,
2882 struct ofpbuf *ofp, const struct nlattr *key)
2883 {
2884 const struct nlattr *a;
2885 unsigned int left;
2886 int type = nl_attr_type(key);
2887 int size = nl_attr_get_size(key);
2888
2889 if (odp_key_attr_len(tbl, max, type) != ATTR_LEN_NESTED) {
2890 nl_msg_put_unspec_zero(ofp, type, size);
2891 } else {
2892 size_t nested_mask;
2893
2894 if (tbl[type].next) {
2895 tbl = tbl[type].next;
2896 max = tbl[type].next_max;
2897 }
2898
2899 nested_mask = nl_msg_start_nested(ofp, type);
2900 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
2901 generate_all_wildcard_mask(tbl, max, ofp, nl_attr_get(a));
2902 }
2903 nl_msg_end_nested(ofp, nested_mask);
2904 }
2905
2906 return ofp->base;
2907 }
2908
2909 static void
2910 format_u128(struct ds *ds, const ovs_u128 *key, const ovs_u128 *mask,
2911 bool verbose)
2912 {
2913 if (verbose || (mask && !ovs_u128_is_zero(mask))) {
2914 ovs_be128 value;
2915
2916 value = hton128(*key);
2917 ds_put_hex(ds, &value, sizeof value);
2918 if (mask && !(ovs_u128_is_ones(mask))) {
2919 value = hton128(*mask);
2920 ds_put_char(ds, '/');
2921 ds_put_hex(ds, &value, sizeof value);
2922 }
2923 }
2924 }
2925
2926 static int
2927 scan_u128(const char *s_, ovs_u128 *value, ovs_u128 *mask)
2928 {
2929 char *s = CONST_CAST(char *, s_);
2930 ovs_be128 be_value;
2931 ovs_be128 be_mask;
2932
2933 if (!parse_int_string(s, (uint8_t *)&be_value, sizeof be_value, &s)) {
2934 *value = ntoh128(be_value);
2935
2936 if (mask) {
2937 int n;
2938
2939 if (ovs_scan(s, "/%n", &n)) {
2940 int error;
2941
2942 s += n;
2943 error = parse_int_string(s, (uint8_t *)&be_mask,
2944 sizeof be_mask, &s);
2945 if (error) {
2946 return error;
2947 }
2948 *mask = ntoh128(be_mask);
2949 } else {
2950 *mask = OVS_U128_MAX;
2951 }
2952 }
2953 return s - s_;
2954 }
2955
2956 return 0;
2957 }
2958
2959 int
2960 odp_ufid_from_string(const char *s_, ovs_u128 *ufid)
2961 {
2962 const char *s = s_;
2963
2964 if (ovs_scan(s, "ufid:")) {
2965 s += 5;
2966
2967 if (!uuid_from_string_prefix((struct uuid *)ufid, s)) {
2968 return -EINVAL;
2969 }
2970 s += UUID_LEN;
2971
2972 return s - s_;
2973 }
2974
2975 return 0;
2976 }
2977
2978 void
2979 odp_format_ufid(const ovs_u128 *ufid, struct ds *ds)
2980 {
2981 ds_put_format(ds, "ufid:"UUID_FMT, UUID_ARGS((struct uuid *)ufid));
2982 }
2983
2984 /* Appends to 'ds' a string representation of the 'key_len' bytes of
2985 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
2986 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
2987 * non-null and 'verbose' is true, translates odp port number to its name. */
2988 void
2989 odp_flow_format(const struct nlattr *key, size_t key_len,
2990 const struct nlattr *mask, size_t mask_len,
2991 const struct hmap *portno_names, struct ds *ds, bool verbose)
2992 {
2993 if (key_len) {
2994 const struct nlattr *a;
2995 unsigned int left;
2996 bool has_ethtype_key = false;
2997 const struct nlattr *ma = NULL;
2998 struct ofpbuf ofp;
2999 bool first_field = true;
3000
3001 ofpbuf_init(&ofp, 100);
3002 NL_ATTR_FOR_EACH (a, left, key, key_len) {
3003 bool is_nested_attr;
3004 bool is_wildcard = false;
3005 int attr_type = nl_attr_type(a);
3006
3007 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
3008 has_ethtype_key = true;
3009 }
3010
3011 is_nested_attr = odp_key_attr_len(ovs_flow_key_attr_lens,
3012 OVS_KEY_ATTR_MAX, attr_type) ==
3013 ATTR_LEN_NESTED;
3014
3015 if (mask && mask_len) {
3016 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
3017 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
3018 }
3019
3020 if (verbose || !is_wildcard || is_nested_attr) {
3021 if (is_wildcard && !ma) {
3022 ma = generate_all_wildcard_mask(ovs_flow_key_attr_lens,
3023 OVS_KEY_ATTR_MAX,
3024 &ofp, a);
3025 }
3026 if (!first_field) {
3027 ds_put_char(ds, ',');
3028 }
3029 format_odp_key_attr(a, ma, portno_names, ds, verbose);
3030 first_field = false;
3031 }
3032 ofpbuf_clear(&ofp);
3033 }
3034 ofpbuf_uninit(&ofp);
3035
3036 if (left) {
3037 int i;
3038
3039 if (left == key_len) {
3040 ds_put_cstr(ds, "<empty>");
3041 }
3042 ds_put_format(ds, ",***%u leftover bytes*** (", left);
3043 for (i = 0; i < left; i++) {
3044 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
3045 }
3046 ds_put_char(ds, ')');
3047 }
3048 if (!has_ethtype_key) {
3049 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
3050 if (ma) {
3051 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
3052 ntohs(nl_attr_get_be16(ma)));
3053 }
3054 }
3055 } else {
3056 ds_put_cstr(ds, "<empty>");
3057 }
3058 }
3059
3060 /* Appends to 'ds' a string representation of the 'key_len' bytes of
3061 * OVS_KEY_ATTR_* attributes in 'key'. */
3062 void
3063 odp_flow_key_format(const struct nlattr *key,
3064 size_t key_len, struct ds *ds)
3065 {
3066 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
3067 }
3068
3069 static bool
3070 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
3071 {
3072 if (!strcasecmp(s, "no")) {
3073 *type = OVS_FRAG_TYPE_NONE;
3074 } else if (!strcasecmp(s, "first")) {
3075 *type = OVS_FRAG_TYPE_FIRST;
3076 } else if (!strcasecmp(s, "later")) {
3077 *type = OVS_FRAG_TYPE_LATER;
3078 } else {
3079 return false;
3080 }
3081 return true;
3082 }
3083
3084 /* Parsing. */
3085
3086 static int
3087 scan_eth(const char *s, struct eth_addr *key, struct eth_addr *mask)
3088 {
3089 int n;
3090
3091 if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n",
3092 ETH_ADDR_SCAN_ARGS(*key), &n)) {
3093 int len = n;
3094
3095 if (mask) {
3096 if (ovs_scan(s + len, "/"ETH_ADDR_SCAN_FMT"%n",
3097 ETH_ADDR_SCAN_ARGS(*mask), &n)) {
3098 len += n;
3099 } else {
3100 memset(mask, 0xff, sizeof *mask);
3101 }
3102 }
3103 return len;
3104 }
3105 return 0;
3106 }
3107
3108 static int
3109 scan_ipv4(const char *s, ovs_be32 *key, ovs_be32 *mask)
3110 {
3111 int n;
3112
3113 if (ovs_scan(s, IP_SCAN_FMT"%n", IP_SCAN_ARGS(key), &n)) {
3114 int len = n;
3115
3116 if (mask) {
3117 if (ovs_scan(s + len, "/"IP_SCAN_FMT"%n",
3118 IP_SCAN_ARGS(mask), &n)) {
3119 len += n;
3120 } else {
3121 *mask = OVS_BE32_MAX;
3122 }
3123 }
3124 return len;
3125 }
3126 return 0;
3127 }
3128
3129 static int
3130 scan_in6_addr(const char *s, struct in6_addr *key, struct in6_addr *mask)
3131 {
3132 int n;
3133 char ipv6_s[IPV6_SCAN_LEN + 1];
3134
3135 if (ovs_scan(s, IPV6_SCAN_FMT"%n", ipv6_s, &n)
3136 && inet_pton(AF_INET6, ipv6_s, key) == 1) {
3137 int len = n;
3138
3139 if (mask) {
3140 if (ovs_scan(s + len, "/"IPV6_SCAN_FMT"%n", ipv6_s, &n)
3141 && inet_pton(AF_INET6, ipv6_s, mask) == 1) {
3142 len += n;
3143 } else {
3144 memset(mask, 0xff, sizeof *mask);
3145 }
3146 }
3147 return len;
3148 }
3149 return 0;
3150 }
3151
3152 static int
3153 scan_ipv6(const char *s, ovs_be32 (*key)[4], ovs_be32 (*mask)[4])
3154 {
3155 return scan_in6_addr(s, key ? (struct in6_addr *) *key : NULL,
3156 mask ? (struct in6_addr *) *mask : NULL);
3157 }
3158
3159 static int
3160 scan_ipv6_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
3161 {
3162 int key_, mask_;
3163 int n;
3164
3165 if (ovs_scan(s, "%i%n", &key_, &n)
3166 && (key_ & ~IPV6_LABEL_MASK) == 0) {
3167 int len = n;
3168
3169 *key = htonl(key_);
3170 if (mask) {
3171 if (ovs_scan(s + len, "/%i%n", &mask_, &n)
3172 && (mask_ & ~IPV6_LABEL_MASK) == 0) {
3173 len += n;
3174 *mask = htonl(mask_);
3175 } else {
3176 *mask = htonl(IPV6_LABEL_MASK);
3177 }
3178 }
3179 return len;
3180 }
3181 return 0;
3182 }
3183
3184 static int
3185 scan_u8(const char *s, uint8_t *key, uint8_t *mask)
3186 {
3187 int n;
3188
3189 if (ovs_scan(s, "%"SCNi8"%n", key, &n)) {
3190 int len = n;
3191
3192 if (mask) {
3193 if (ovs_scan(s + len, "/%"SCNi8"%n", mask, &n)) {
3194 len += n;
3195 } else {
3196 *mask = UINT8_MAX;
3197 }
3198 }
3199 return len;
3200 }
3201 return 0;
3202 }
3203
3204 static int
3205 scan_u16(const char *s, uint16_t *key, uint16_t *mask)
3206 {
3207 int n;
3208
3209 if (ovs_scan(s, "%"SCNi16"%n", key, &n)) {
3210 int len = n;
3211
3212 if (mask) {
3213 if (ovs_scan(s + len, "/%"SCNi16"%n", mask, &n)) {
3214 len += n;
3215 } else {
3216 *mask = UINT16_MAX;
3217 }
3218 }
3219 return len;
3220 }
3221 return 0;
3222 }
3223
3224 static int
3225 scan_u32(const char *s, uint32_t *key, uint32_t *mask)
3226 {
3227 int n;
3228
3229 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
3230 int len = n;
3231
3232 if (mask) {
3233 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
3234 len += n;
3235 } else {
3236 *mask = UINT32_MAX;
3237 }
3238 }
3239 return len;
3240 }
3241 return 0;
3242 }
3243
3244 static int
3245 scan_be16(const char *s, ovs_be16 *key, ovs_be16 *mask)
3246 {
3247 uint16_t key_, mask_;
3248 int n;
3249
3250 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
3251 int len = n;
3252
3253 *key = htons(key_);
3254 if (mask) {
3255 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
3256 len += n;
3257 *mask = htons(mask_);
3258 } else {
3259 *mask = OVS_BE16_MAX;
3260 }
3261 }
3262 return len;
3263 }
3264 return 0;
3265 }
3266
3267 static int
3268 scan_be64(const char *s, ovs_be64 *key, ovs_be64 *mask)
3269 {
3270 uint64_t key_, mask_;
3271 int n;
3272
3273 if (ovs_scan(s, "%"SCNi64"%n", &key_, &n)) {
3274 int len = n;
3275
3276 *key = htonll(key_);
3277 if (mask) {
3278 if (ovs_scan(s + len, "/%"SCNi64"%n", &mask_, &n)) {
3279 len += n;
3280 *mask = htonll(mask_);
3281 } else {
3282 *mask = OVS_BE64_MAX;
3283 }
3284 }
3285 return len;
3286 }
3287 return 0;
3288 }
3289
3290 static int
3291 scan_tun_flags(const char *s, uint16_t *key, uint16_t *mask)
3292 {
3293 uint32_t flags, fmask;
3294 int n;
3295
3296 n = parse_odp_flags(s, flow_tun_flag_to_string, &flags,
3297 FLOW_TNL_F_MASK, mask ? &fmask : NULL);
3298 if (n >= 0 && s[n] == ')') {
3299 *key = flags;
3300 if (mask) {
3301 *mask = fmask;
3302 }
3303 return n + 1;
3304 }
3305 return 0;
3306 }
3307
3308 static int
3309 scan_tcp_flags(const char *s, ovs_be16 *key, ovs_be16 *mask)
3310 {
3311 uint32_t flags, fmask;
3312 int n;
3313
3314 n = parse_odp_flags(s, packet_tcp_flag_to_string, &flags,
3315 TCP_FLAGS(OVS_BE16_MAX), mask ? &fmask : NULL);
3316 if (n >= 0) {
3317 *key = htons(flags);
3318 if (mask) {
3319 *mask = htons(fmask);
3320 }
3321 return n;
3322 }
3323 return 0;
3324 }
3325
3326 static uint32_t
3327 ovs_to_odp_ct_state(uint8_t state)
3328 {
3329 uint32_t odp = 0;
3330
3331 if (state & CS_NEW) {
3332 odp |= OVS_CS_F_NEW;
3333 }
3334 if (state & CS_ESTABLISHED) {
3335 odp |= OVS_CS_F_ESTABLISHED;
3336 }
3337 if (state & CS_RELATED) {
3338 odp |= OVS_CS_F_RELATED;
3339 }
3340 if (state & CS_INVALID) {
3341 odp |= OVS_CS_F_INVALID;
3342 }
3343 if (state & CS_REPLY_DIR) {
3344 odp |= OVS_CS_F_REPLY_DIR;
3345 }
3346 if (state & CS_TRACKED) {
3347 odp |= OVS_CS_F_TRACKED;
3348 }
3349
3350 return odp;
3351 }
3352
3353 static uint8_t
3354 odp_to_ovs_ct_state(uint32_t flags)
3355 {
3356 uint32_t state = 0;
3357
3358 if (flags & OVS_CS_F_NEW) {
3359 state |= CS_NEW;
3360 }
3361 if (flags & OVS_CS_F_ESTABLISHED) {
3362 state |= CS_ESTABLISHED;
3363 }
3364 if (flags & OVS_CS_F_RELATED) {
3365 state |= CS_RELATED;
3366 }
3367 if (flags & OVS_CS_F_INVALID) {
3368 state |= CS_INVALID;
3369 }
3370 if (flags & OVS_CS_F_REPLY_DIR) {
3371 state |= CS_REPLY_DIR;
3372 }
3373 if (flags & OVS_CS_F_TRACKED) {
3374 state |= CS_TRACKED;
3375 }
3376
3377 return state;
3378 }
3379
3380 static int
3381 scan_ct_state(const char *s, uint32_t *key, uint32_t *mask)
3382 {
3383 uint32_t flags, fmask;
3384 int n;
3385
3386 n = parse_flags(s, odp_ct_state_to_string, ')', NULL, NULL, &flags,
3387 ovs_to_odp_ct_state(CS_SUPPORTED_MASK),
3388 mask ? &fmask : NULL);
3389
3390 if (n >= 0) {
3391 *key = flags;
3392 if (mask) {
3393 *mask = fmask;
3394 }
3395 return n;
3396 }
3397 return 0;
3398 }
3399
3400 static int
3401 scan_frag(const char *s, uint8_t *key, uint8_t *mask)
3402 {
3403 int n;
3404 char frag[8];
3405 enum ovs_frag_type frag_type;
3406
3407 if (ovs_scan(s, "%7[a-z]%n", frag, &n)
3408 && ovs_frag_type_from_string(frag, &frag_type)) {
3409 int len = n;
3410
3411 *key = frag_type;
3412 if (mask) {
3413 *mask = UINT8_MAX;
3414 }
3415 return len;
3416 }
3417 return 0;
3418 }
3419
3420 static int
3421 scan_port(const char *s, uint32_t *key, uint32_t *mask,
3422 const struct simap *port_names)
3423 {
3424 int n;
3425
3426 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
3427 int len = n;
3428
3429 if (mask) {
3430 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
3431 len += n;
3432 } else {
3433 *mask = UINT32_MAX;
3434 }
3435 }
3436 return len;
3437 } else if (port_names) {
3438 const struct simap_node *node;
3439 int len;
3440
3441 len = strcspn(s, ")");
3442 node = simap_find_len(port_names, s, len);
3443 if (node) {
3444 *key = node->data;
3445
3446 if (mask) {
3447 *mask = UINT32_MAX;
3448 }
3449 return len;
3450 }
3451 }
3452 return 0;
3453 }
3454
3455 /* Helper for vlan parsing. */
3456 struct ovs_key_vlan__ {
3457 ovs_be16 tci;
3458 };
3459
3460 static bool
3461 set_be16_bf(ovs_be16 *bf, uint8_t bits, uint8_t offset, uint16_t value)
3462 {
3463 const uint16_t mask = ((1U << bits) - 1) << offset;
3464
3465 if (value >> bits) {
3466 return false;
3467 }
3468
3469 *bf = htons((ntohs(*bf) & ~mask) | (value << offset));
3470 return true;
3471 }
3472
3473 static int
3474 scan_be16_bf(const char *s, ovs_be16 *key, ovs_be16 *mask, uint8_t bits,
3475 uint8_t offset)
3476 {
3477 uint16_t key_, mask_;
3478 int n;
3479
3480 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
3481 int len = n;
3482
3483 if (set_be16_bf(key, bits, offset, key_)) {
3484 if (mask) {
3485 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
3486 len += n;
3487
3488 if (!set_be16_bf(mask, bits, offset, mask_)) {
3489 return 0;
3490 }
3491 } else {
3492 *mask |= htons(((1U << bits) - 1) << offset);
3493 }
3494 }
3495 return len;
3496 }
3497 }
3498 return 0;
3499 }
3500
3501 static int
3502 scan_vid(const char *s, ovs_be16 *key, ovs_be16 *mask)
3503 {
3504 return scan_be16_bf(s, key, mask, 12, VLAN_VID_SHIFT);
3505 }
3506
3507 static int
3508 scan_pcp(const char *s, ovs_be16 *key, ovs_be16 *mask)
3509 {
3510 return scan_be16_bf(s, key, mask, 3, VLAN_PCP_SHIFT);
3511 }
3512
3513 static int
3514 scan_cfi(const char *s, ovs_be16 *key, ovs_be16 *mask)
3515 {
3516 return scan_be16_bf(s, key, mask, 1, VLAN_CFI_SHIFT);
3517 }
3518
3519 /* For MPLS. */
3520 static bool
3521 set_be32_bf(ovs_be32 *bf, uint8_t bits, uint8_t offset, uint32_t value)
3522 {
3523 const uint32_t mask = ((1U << bits) - 1) << offset;
3524
3525 if (value >> bits) {
3526 return false;
3527 }
3528
3529 *bf = htonl((ntohl(*bf) & ~mask) | (value << offset));
3530 return true;
3531 }
3532
3533 static int
3534 scan_be32_bf(const char *s, ovs_be32 *key, ovs_be32 *mask, uint8_t bits,
3535 uint8_t offset)
3536 {
3537 uint32_t key_, mask_;
3538 int n;
3539
3540 if (ovs_scan(s, "%"SCNi32"%n", &key_, &n)) {
3541 int len = n;
3542
3543 if (set_be32_bf(key, bits, offset, key_)) {
3544 if (mask) {
3545 if (ovs_scan(s + len, "/%"SCNi32"%n", &mask_, &n)) {
3546 len += n;
3547
3548 if (!set_be32_bf(mask, bits, offset, mask_)) {
3549 return 0;
3550 }
3551 } else {
3552 *mask |= htonl(((1U << bits) - 1) << offset);
3553 }
3554 }
3555 return len;
3556 }
3557 }
3558 return 0;
3559 }
3560
3561 static int
3562 scan_mpls_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
3563 {
3564 return scan_be32_bf(s, key, mask, 20, MPLS_LABEL_SHIFT);
3565 }
3566
3567 static int
3568 scan_mpls_tc(const char *s, ovs_be32 *key, ovs_be32 *mask)
3569 {
3570 return scan_be32_bf(s, key, mask, 3, MPLS_TC_SHIFT);
3571 }
3572
3573 static int
3574 scan_mpls_ttl(const char *s, ovs_be32 *key, ovs_be32 *mask)
3575 {
3576 return scan_be32_bf(s, key, mask, 8, MPLS_TTL_SHIFT);
3577 }
3578
3579 static int
3580 scan_mpls_bos(const char *s, ovs_be32 *key, ovs_be32 *mask)
3581 {
3582 return scan_be32_bf(s, key, mask, 1, MPLS_BOS_SHIFT);
3583 }
3584
3585 static int
3586 scan_vxlan_gbp(const char *s, uint32_t *key, uint32_t *mask)
3587 {
3588 const char *s_base = s;
3589 ovs_be16 id = 0, id_mask = 0;
3590 uint8_t flags = 0, flags_mask = 0;
3591
3592 if (!strncmp(s, "id=", 3)) {
3593 s += 3;
3594 s += scan_be16(s, &id, mask ? &id_mask : NULL);
3595 }
3596
3597 if (s[0] == ',') {
3598 s++;
3599 }
3600 if (!strncmp(s, "flags=", 6)) {
3601 s += 6;
3602 s += scan_u8(s, &flags, mask ? &flags_mask : NULL);
3603 }
3604
3605 if (!strncmp(s, "))", 2)) {
3606 s += 2;
3607
3608 *key = (flags << 16) | ntohs(id);
3609 if (mask) {
3610 *mask = (flags_mask << 16) | ntohs(id_mask);
3611 }
3612
3613 return s - s_base;
3614 }
3615
3616 return 0;
3617 }
3618
3619 static int
3620 scan_geneve(const char *s, struct geneve_scan *key, struct geneve_scan *mask)
3621 {
3622 const char *s_base = s;
3623 struct geneve_opt *opt = key->d;
3624 struct geneve_opt *opt_mask = mask ? mask->d : NULL;
3625 int len_remain = sizeof key->d;
3626
3627 while (s[0] == '{' && len_remain >= sizeof *opt) {
3628 int data_len = 0;
3629
3630 s++;
3631 len_remain -= sizeof *opt;
3632
3633 if (!strncmp(s, "class=", 6)) {
3634 s += 6;
3635 s += scan_be16(s, &opt->opt_class,
3636 mask ? &opt_mask->opt_class : NULL);
3637 } else if (mask) {
3638 memset(&opt_mask->opt_class, 0, sizeof opt_mask->opt_class);
3639 }
3640
3641 if (s[0] == ',') {
3642 s++;
3643 }
3644 if (!strncmp(s, "type=", 5)) {
3645 s += 5;
3646 s += scan_u8(s, &opt->type, mask ? &opt_mask->type : NULL);
3647 } else if (mask) {
3648 memset(&opt_mask->type, 0, sizeof opt_mask->type);
3649 }
3650
3651 if (s[0] == ',') {
3652 s++;
3653 }
3654 if (!strncmp(s, "len=", 4)) {
3655 uint8_t opt_len, opt_len_mask;
3656 s += 4;
3657 s += scan_u8(s, &opt_len, mask ? &opt_len_mask : NULL);
3658
3659 if (opt_len > 124 || opt_len % 4 || opt_len > len_remain) {
3660 return 0;
3661 }
3662 opt->length = opt_len / 4;
3663 if (mask) {
3664 opt_mask->length = opt_len_mask;
3665 }
3666 data_len = opt_len;
3667 } else if (mask) {
3668 memset(&opt_mask->type, 0, sizeof opt_mask->type);
3669 }
3670
3671 if (s[0] == ',') {
3672 s++;
3673 }
3674 if (parse_int_string(s, (uint8_t *)(opt + 1), data_len, (char **)&s)) {
3675 return 0;
3676 }
3677
3678 if (mask) {
3679 if (s[0] == '/') {
3680 s++;
3681 if (parse_int_string(s, (uint8_t *)(opt_mask + 1),
3682 data_len, (char **)&s)) {
3683 return 0;
3684 }
3685 }
3686 opt_mask->r1 = 0;
3687 opt_mask->r2 = 0;
3688 opt_mask->r3 = 0;
3689 }
3690
3691 if (s[0] == '}') {
3692 s++;
3693 opt += 1 + data_len / 4;
3694 if (mask) {
3695 opt_mask += 1 + data_len / 4;
3696 }
3697 len_remain -= data_len;
3698 }
3699 }
3700
3701 if (s[0] == ')') {
3702 int len = sizeof key->d - len_remain;
3703
3704 s++;
3705 key->len = len;
3706 if (mask) {
3707 mask->len = len;
3708 }
3709 return s - s_base;
3710 }
3711
3712 return 0;
3713 }
3714
3715 static void
3716 tun_flags_to_attr(struct ofpbuf *a, const void *data_)
3717 {
3718 const uint16_t *flags = data_;
3719
3720 if (*flags & FLOW_TNL_F_DONT_FRAGMENT) {
3721 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
3722 }
3723 if (*flags & FLOW_TNL_F_CSUM) {
3724 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
3725 }
3726 if (*flags & FLOW_TNL_F_OAM) {
3727 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
3728 }
3729 }
3730
3731 static void
3732 vxlan_gbp_to_attr(struct ofpbuf *a, const void *data_)
3733 {
3734 const uint32_t *gbp = data_;
3735
3736 if (*gbp) {
3737 size_t vxlan_opts_ofs;
3738
3739 vxlan_opts_ofs = nl_msg_start_nested(a, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
3740 nl_msg_put_u32(a, OVS_VXLAN_EXT_GBP, *gbp);
3741 nl_msg_end_nested(a, vxlan_opts_ofs);
3742 }
3743 }
3744
3745 static void
3746 geneve_to_attr(struct ofpbuf *a, const void *data_)
3747 {
3748 const struct geneve_scan *geneve = data_;
3749
3750 nl_msg_put_unspec(a, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, geneve->d,
3751 geneve->len);
3752 }
3753
3754 #define SCAN_PUT_ATTR(BUF, ATTR, DATA, FUNC) \
3755 { \
3756 unsigned long call_fn = (unsigned long)FUNC; \
3757 if (call_fn) { \
3758 typedef void (*fn)(struct ofpbuf *, const void *); \
3759 fn func = FUNC; \
3760 func(BUF, &(DATA)); \
3761 } else { \
3762 nl_msg_put_unspec(BUF, ATTR, &(DATA), sizeof (DATA)); \
3763 } \
3764 }
3765
3766 #define SCAN_IF(NAME) \
3767 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3768 const char *start = s; \
3769 int len; \
3770 \
3771 s += strlen(NAME)
3772
3773 /* Usually no special initialization is needed. */
3774 #define SCAN_BEGIN(NAME, TYPE) \
3775 SCAN_IF(NAME); \
3776 TYPE skey, smask; \
3777 memset(&skey, 0, sizeof skey); \
3778 memset(&smask, 0, sizeof smask); \
3779 do { \
3780 len = 0;
3781
3782 /* Init as fully-masked as mask will not be scanned. */
3783 #define SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) \
3784 SCAN_IF(NAME); \
3785 TYPE skey, smask; \
3786 memset(&skey, 0, sizeof skey); \
3787 memset(&smask, 0xff, sizeof smask); \
3788 do { \
3789 len = 0;
3790
3791 /* VLAN needs special initialization. */
3792 #define SCAN_BEGIN_INIT(NAME, TYPE, KEY_INIT, MASK_INIT) \
3793 SCAN_IF(NAME); \
3794 TYPE skey = KEY_INIT; \
3795 TYPE smask = MASK_INIT; \
3796 do { \
3797 len = 0;
3798
3799 /* Scan unnamed entry as 'TYPE' */
3800 #define SCAN_TYPE(TYPE, KEY, MASK) \
3801 len = scan_##TYPE(s, KEY, MASK); \
3802 if (len == 0) { \
3803 return -EINVAL; \
3804 } \
3805 s += len
3806
3807 /* Scan named ('NAME') entry 'FIELD' as 'TYPE'. */
3808 #define SCAN_FIELD(NAME, TYPE, FIELD) \
3809 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3810 s += strlen(NAME); \
3811 SCAN_TYPE(TYPE, &skey.FIELD, mask ? &smask.FIELD : NULL); \
3812 continue; \
3813 }
3814
3815 #define SCAN_FINISH() \
3816 } while (*s++ == ',' && len != 0); \
3817 if (s[-1] != ')') { \
3818 return -EINVAL; \
3819 }
3820
3821 #define SCAN_FINISH_SINGLE() \
3822 } while (false); \
3823 if (*s++ != ')') { \
3824 return -EINVAL; \
3825 }
3826
3827 /* Beginning of nested attribute. */
3828 #define SCAN_BEGIN_NESTED(NAME, ATTR) \
3829 SCAN_IF(NAME); \
3830 size_t key_offset, mask_offset; \
3831 key_offset = nl_msg_start_nested(key, ATTR); \
3832 if (mask) { \
3833 mask_offset = nl_msg_start_nested(mask, ATTR); \
3834 } \
3835 do { \
3836 len = 0;
3837
3838 #define SCAN_END_NESTED() \
3839 SCAN_FINISH(); \
3840 nl_msg_end_nested(key, key_offset); \
3841 if (mask) { \
3842 nl_msg_end_nested(mask, mask_offset); \
3843 } \
3844 return s - start; \
3845 }
3846
3847 #define SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, FUNC) \
3848 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3849 TYPE skey, smask; \
3850 memset(&skey, 0, sizeof skey); \
3851 memset(&smask, 0xff, sizeof smask); \
3852 s += strlen(NAME); \
3853 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3854 SCAN_PUT(ATTR, FUNC); \
3855 continue; \
3856 }
3857
3858 #define SCAN_FIELD_NESTED(NAME, TYPE, SCAN_AS, ATTR) \
3859 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, NULL)
3860
3861 #define SCAN_FIELD_NESTED_FUNC(NAME, TYPE, SCAN_AS, FUNC) \
3862 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, 0, FUNC)
3863
3864 #define SCAN_PUT(ATTR, FUNC) \
3865 if (!mask || !is_all_zeros(&smask, sizeof smask)) { \
3866 SCAN_PUT_ATTR(key, ATTR, skey, FUNC); \
3867 if (mask) { \
3868 SCAN_PUT_ATTR(mask, ATTR, smask, FUNC); \
3869 } \
3870 }
3871
3872 #define SCAN_END(ATTR) \
3873 SCAN_FINISH(); \
3874 SCAN_PUT(ATTR, NULL); \
3875 return s - start; \
3876 }
3877
3878 #define SCAN_END_SINGLE(ATTR) \
3879 SCAN_FINISH_SINGLE(); \
3880 SCAN_PUT(ATTR, NULL); \
3881 return s - start; \
3882 }
3883
3884 #define SCAN_SINGLE(NAME, TYPE, SCAN_AS, ATTR) \
3885 SCAN_BEGIN(NAME, TYPE) { \
3886 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3887 } SCAN_END_SINGLE(ATTR)
3888
3889 #define SCAN_SINGLE_FULLY_MASKED(NAME, TYPE, SCAN_AS, ATTR) \
3890 SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) { \
3891 SCAN_TYPE(SCAN_AS, &skey, NULL); \
3892 } SCAN_END_SINGLE(ATTR)
3893
3894 /* scan_port needs one extra argument. */
3895 #define SCAN_SINGLE_PORT(NAME, TYPE, ATTR) \
3896 SCAN_BEGIN(NAME, TYPE) { \
3897 len = scan_port(s, &skey, &smask, port_names); \
3898 if (len == 0) { \
3899 return -EINVAL; \
3900 } \
3901 s += len; \
3902 } SCAN_END_SINGLE(ATTR)
3903
3904 static int
3905 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
3906 struct ofpbuf *key, struct ofpbuf *mask)
3907 {
3908 ovs_u128 ufid;
3909 int len;
3910
3911 /* Skip UFID. */
3912 len = odp_ufid_from_string(s, &ufid);
3913 if (len) {
3914 return len;
3915 }
3916
3917 SCAN_SINGLE("skb_priority(", uint32_t, u32, OVS_KEY_ATTR_PRIORITY);
3918 SCAN_SINGLE("skb_mark(", uint32_t, u32, OVS_KEY_ATTR_SKB_MARK);
3919 SCAN_SINGLE_FULLY_MASKED("recirc_id(", uint32_t, u32,
3920 OVS_KEY_ATTR_RECIRC_ID);
3921 SCAN_SINGLE("dp_hash(", uint32_t, u32, OVS_KEY_ATTR_DP_HASH);
3922
3923 SCAN_SINGLE("ct_state(", uint32_t, ct_state, OVS_KEY_ATTR_CT_STATE);
3924 SCAN_SINGLE("ct_zone(", uint16_t, u16, OVS_KEY_ATTR_CT_ZONE);
3925 SCAN_SINGLE("ct_mark(", uint32_t, u32, OVS_KEY_ATTR_CT_MARK);
3926 SCAN_SINGLE("ct_label(", ovs_u128, u128, OVS_KEY_ATTR_CT_LABELS);
3927
3928 SCAN_BEGIN_NESTED("tunnel(", OVS_KEY_ATTR_TUNNEL) {
3929 SCAN_FIELD_NESTED("tun_id=", ovs_be64, be64, OVS_TUNNEL_KEY_ATTR_ID);
3930 SCAN_FIELD_NESTED("src=", ovs_be32, ipv4, OVS_TUNNEL_KEY_ATTR_IPV4_SRC);
3931 SCAN_FIELD_NESTED("dst=", ovs_be32, ipv4, OVS_TUNNEL_KEY_ATTR_IPV4_DST);
3932 SCAN_FIELD_NESTED("ipv6_src=", struct in6_addr, in6_addr, OVS_TUNNEL_KEY_ATTR_IPV6_SRC);
3933 SCAN_FIELD_NESTED("ipv6_dst=", struct in6_addr, in6_addr, OVS_TUNNEL_KEY_ATTR_IPV6_DST);
3934 SCAN_FIELD_NESTED("tos=", uint8_t, u8, OVS_TUNNEL_KEY_ATTR_TOS);
3935 SCAN_FIELD_NESTED("ttl=", uint8_t, u8, OVS_TUNNEL_KEY_ATTR_TTL);
3936 SCAN_FIELD_NESTED("tp_src=", ovs_be16, be16, OVS_TUNNEL_KEY_ATTR_TP_SRC);
3937 SCAN_FIELD_NESTED("tp_dst=", ovs_be16, be16, OVS_TUNNEL_KEY_ATTR_TP_DST);
3938 SCAN_FIELD_NESTED_FUNC("vxlan(gbp(", uint32_t, vxlan_gbp, vxlan_gbp_to_attr);
3939 SCAN_FIELD_NESTED_FUNC("geneve(", struct geneve_scan, geneve,
3940 geneve_to_attr);
3941 SCAN_FIELD_NESTED_FUNC("flags(", uint16_t, tun_flags, tun_flags_to_attr);
3942 } SCAN_END_NESTED();
3943
3944 SCAN_SINGLE_PORT("in_port(", uint32_t, OVS_KEY_ATTR_IN_PORT);
3945
3946 SCAN_BEGIN("eth(", struct ovs_key_ethernet) {
3947 SCAN_FIELD("src=", eth, eth_src);
3948 SCAN_FIELD("dst=", eth, eth_dst);
3949 } SCAN_END(OVS_KEY_ATTR_ETHERNET);
3950
3951 SCAN_BEGIN_INIT("vlan(", struct ovs_key_vlan__,
3952 { htons(VLAN_CFI) }, { htons(VLAN_CFI) }) {
3953 SCAN_FIELD("vid=", vid, tci);
3954 SCAN_FIELD("pcp=", pcp, tci);
3955 SCAN_FIELD("cfi=", cfi, tci);
3956 } SCAN_END(OVS_KEY_ATTR_VLAN);
3957
3958 SCAN_SINGLE("eth_type(", ovs_be16, be16, OVS_KEY_ATTR_ETHERTYPE);
3959
3960 SCAN_BEGIN("mpls(", struct ovs_key_mpls) {
3961 SCAN_FIELD("label=", mpls_label, mpls_lse);
3962 SCAN_FIELD("tc=", mpls_tc, mpls_lse);
3963 SCAN_FIELD("ttl=", mpls_ttl, mpls_lse);
3964 SCAN_FIELD("bos=", mpls_bos, mpls_lse);
3965 } SCAN_END(OVS_KEY_ATTR_MPLS);
3966
3967 SCAN_BEGIN("ipv4(", struct ovs_key_ipv4) {
3968 SCAN_FIELD("src=", ipv4, ipv4_src);
3969 SCAN_FIELD("dst=", ipv4, ipv4_dst);
3970 SCAN_FIELD("proto=", u8, ipv4_proto);
3971 SCAN_FIELD("tos=", u8, ipv4_tos);
3972 SCAN_FIELD("ttl=", u8, ipv4_ttl);
3973 SCAN_FIELD("frag=", frag, ipv4_frag);
3974 } SCAN_END(OVS_KEY_ATTR_IPV4);
3975
3976 SCAN_BEGIN("ipv6(", struct ovs_key_ipv6) {
3977 SCAN_FIELD("src=", ipv6, ipv6_src);
3978 SCAN_FIELD("dst=", ipv6, ipv6_dst);
3979 SCAN_FIELD("label=", ipv6_label, ipv6_label);
3980 SCAN_FIELD("proto=", u8, ipv6_proto);
3981 SCAN_FIELD("tclass=", u8, ipv6_tclass);
3982 SCAN_FIELD("hlimit=", u8, ipv6_hlimit);
3983 SCAN_FIELD("frag=", frag, ipv6_frag);
3984 } SCAN_END(OVS_KEY_ATTR_IPV6);
3985
3986 SCAN_BEGIN("tcp(", struct ovs_key_tcp) {
3987 SCAN_FIELD("src=", be16, tcp_src);
3988 SCAN_FIELD("dst=", be16, tcp_dst);
3989 } SCAN_END(OVS_KEY_ATTR_TCP);
3990
3991 SCAN_SINGLE("tcp_flags(", ovs_be16, tcp_flags, OVS_KEY_ATTR_TCP_FLAGS);
3992
3993 SCAN_BEGIN("udp(", struct ovs_key_udp) {
3994 SCAN_FIELD("src=", be16, udp_src);
3995 SCAN_FIELD("dst=", be16, udp_dst);
3996 } SCAN_END(OVS_KEY_ATTR_UDP);
3997
3998 SCAN_BEGIN("sctp(", struct ovs_key_sctp) {
3999 SCAN_FIELD("src=", be16, sctp_src);
4000 SCAN_FIELD("dst=", be16, sctp_dst);
4001 } SCAN_END(OVS_KEY_ATTR_SCTP);
4002
4003 SCAN_BEGIN("icmp(", struct ovs_key_icmp) {
4004 SCAN_FIELD("type=", u8, icmp_type);
4005 SCAN_FIELD("code=", u8, icmp_code);
4006 } SCAN_END(OVS_KEY_ATTR_ICMP);
4007
4008 SCAN_BEGIN("icmpv6(", struct ovs_key_icmpv6) {
4009 SCAN_FIELD("type=", u8, icmpv6_type);
4010 SCAN_FIELD("code=", u8, icmpv6_code);
4011 } SCAN_END(OVS_KEY_ATTR_ICMPV6);
4012
4013 SCAN_BEGIN("arp(", struct ovs_key_arp) {
4014 SCAN_FIELD("sip=", ipv4, arp_sip);
4015 SCAN_FIELD("tip=", ipv4, arp_tip);
4016 SCAN_FIELD("op=", be16, arp_op);
4017 SCAN_FIELD("sha=", eth, arp_sha);
4018 SCAN_FIELD("tha=", eth, arp_tha);
4019 } SCAN_END(OVS_KEY_ATTR_ARP);
4020
4021 SCAN_BEGIN("nd(", struct ovs_key_nd) {
4022 SCAN_FIELD("target=", ipv6, nd_target);
4023 SCAN_FIELD("sll=", eth, nd_sll);
4024 SCAN_FIELD("tll=", eth, nd_tll);
4025 } SCAN_END(OVS_KEY_ATTR_ND);
4026
4027 /* Encap open-coded. */
4028 if (!strncmp(s, "encap(", 6)) {
4029 const char *start = s;
4030 size_t encap, encap_mask = 0;
4031
4032 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
4033 if (mask) {
4034 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
4035 }
4036
4037 s += 6;
4038 for (;;) {
4039 int retval;
4040
4041 s += strspn(s, delimiters);
4042 if (!*s) {
4043 return -EINVAL;
4044 } else if (*s == ')') {
4045 break;
4046 }
4047
4048 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
4049 if (retval < 0) {
4050 return retval;
4051 }
4052 s += retval;
4053 }
4054 s++;
4055
4056 nl_msg_end_nested(key, encap);
4057 if (mask) {
4058 nl_msg_end_nested(mask, encap_mask);
4059 }
4060
4061 return s - start;
4062 }
4063
4064 return -EINVAL;
4065 }
4066
4067 /* Parses the string representation of a datapath flow key, in the
4068 * format output by odp_flow_key_format(). Returns 0 if successful,
4069 * otherwise a positive errno value. On success, the flow key is
4070 * appended to 'key' as a series of Netlink attributes. On failure, no
4071 * data is appended to 'key'. Either way, 'key''s data might be
4072 * reallocated.
4073 *
4074 * If 'port_names' is nonnull, it points to an simap that maps from a port name
4075 * to a port number. (Port names may be used instead of port numbers in
4076 * in_port.)
4077 *
4078 * On success, the attributes appended to 'key' are individually syntactically
4079 * valid, but they may not be valid as a sequence. 'key' might, for example,
4080 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
4081 int
4082 odp_flow_from_string(const char *s, const struct simap *port_names,
4083 struct ofpbuf *key, struct ofpbuf *mask)
4084 {
4085 const size_t old_size = key->size;
4086 for (;;) {
4087 int retval;
4088
4089 s += strspn(s, delimiters);
4090 if (!*s) {
4091 return 0;
4092 }
4093
4094 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
4095 if (retval < 0) {
4096 key->size = old_size;
4097 return -retval;
4098 }
4099 s += retval;
4100 }
4101
4102 return 0;
4103 }
4104
4105 static uint8_t
4106 ovs_to_odp_frag(uint8_t nw_frag, bool is_mask)
4107 {
4108 if (is_mask) {
4109 /* Netlink interface 'enum ovs_frag_type' is an 8-bit enumeration type,
4110 * not a set of flags or bitfields. Hence, if the struct flow nw_frag
4111 * mask, which is a set of bits, has the FLOW_NW_FRAG_ANY as zero, we
4112 * must use a zero mask for the netlink frag field, and all ones mask
4113 * otherwise. */
4114 return (nw_frag & FLOW_NW_FRAG_ANY) ? UINT8_MAX : 0;
4115 }
4116 return !(nw_frag & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_NONE
4117 : nw_frag & FLOW_NW_FRAG_LATER ? OVS_FRAG_TYPE_LATER
4118 : OVS_FRAG_TYPE_FIRST;
4119 }
4120
4121 static void get_ethernet_key(const struct flow *, struct ovs_key_ethernet *);
4122 static void put_ethernet_key(const struct ovs_key_ethernet *, struct flow *);
4123 static void get_ipv4_key(const struct flow *, struct ovs_key_ipv4 *,
4124 bool is_mask);
4125 static void put_ipv4_key(const struct ovs_key_ipv4 *, struct flow *,
4126 bool is_mask);
4127 static void get_ipv6_key(const struct flow *, struct ovs_key_ipv6 *,
4128 bool is_mask);
4129 static void put_ipv6_key(const struct ovs_key_ipv6 *, struct flow *,
4130 bool is_mask);
4131 static void get_arp_key(const struct flow *, struct ovs_key_arp *);
4132 static void put_arp_key(const struct ovs_key_arp *, struct flow *);
4133 static void get_nd_key(const struct flow *, struct ovs_key_nd *);
4134 static void put_nd_key(const struct ovs_key_nd *, struct flow *);
4135
4136 /* These share the same layout. */
4137 union ovs_key_tp {
4138 struct ovs_key_tcp tcp;
4139 struct ovs_key_udp udp;
4140 struct ovs_key_sctp sctp;
4141 };
4142
4143 static void get_tp_key(const struct flow *, union ovs_key_tp *);
4144 static void put_tp_key(const union ovs_key_tp *, struct flow *);
4145
4146 static void
4147 odp_flow_key_from_flow__(const struct odp_flow_key_parms *parms,
4148 bool export_mask, struct ofpbuf *buf)
4149 {
4150 struct ovs_key_ethernet *eth_key;
4151 size_t encap;
4152 const struct flow *flow = parms->flow;
4153 const struct flow *data = export_mask ? parms->mask : parms->flow;
4154
4155 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
4156
4157 if (flow_tnl_dst_is_set(&flow->tunnel) || export_mask) {
4158 tun_key_to_attr(buf, &data->tunnel, &parms->flow->tunnel,
4159 parms->key_buf);
4160 }
4161
4162 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
4163
4164 if (parms->support.ct_state) {
4165 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_STATE,
4166 ovs_to_odp_ct_state(data->ct_state));
4167 }
4168 if (parms->support.ct_zone) {
4169 nl_msg_put_u16(buf, OVS_KEY_ATTR_CT_ZONE, data->ct_zone);
4170 }
4171 if (parms->support.ct_mark) {
4172 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_MARK, data->ct_mark);
4173 }
4174 if (parms->support.ct_label) {
4175 nl_msg_put_unspec(buf, OVS_KEY_ATTR_CT_LABELS, &data->ct_label,
4176 sizeof(data->ct_label));
4177 }
4178 if (parms->support.recirc) {
4179 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
4180 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
4181 }
4182
4183 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
4184 * is not the magical value "ODPP_NONE". */
4185 if (export_mask || parms->odp_in_port != ODPP_NONE) {
4186 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, parms->odp_in_port);
4187 }
4188
4189 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
4190 sizeof *eth_key);
4191 get_ethernet_key(data, eth_key);
4192
4193 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
4194 if (export_mask) {
4195 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
4196 } else {
4197 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
4198 }
4199 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
4200 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
4201 if (flow->vlan_tci == htons(0)) {
4202 goto unencap;
4203 }
4204 } else {
4205 encap = 0;
4206 }
4207
4208 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
4209 /* For backwards compatibility with kernels that don't support
4210 * wildcarding, the following convention is used to encode the
4211 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
4212 *
4213 * key mask matches
4214 * -------- -------- -------
4215 * >0x5ff 0xffff Specified Ethernet II Ethertype.
4216 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
4217 * <none> 0xffff Any non-Ethernet II frame (except valid
4218 * 802.3 SNAP packet with valid eth_type).
4219 */
4220 if (export_mask) {
4221 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
4222 }
4223 goto unencap;
4224 }
4225
4226 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
4227
4228 if (flow->dl_type == htons(ETH_TYPE_IP)) {
4229 struct ovs_key_ipv4 *ipv4_key;
4230
4231 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
4232 sizeof *ipv4_key);
4233 get_ipv4_key(data, ipv4_key, export_mask);
4234 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
4235 struct ovs_key_ipv6 *ipv6_key;
4236
4237 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
4238 sizeof *ipv6_key);
4239 get_ipv6_key(data, ipv6_key, export_mask);
4240 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
4241 flow->dl_type == htons(ETH_TYPE_RARP)) {
4242 struct ovs_key_arp *arp_key;
4243
4244 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
4245 sizeof *arp_key);
4246 get_arp_key(data, arp_key);
4247 } else if (eth_type_mpls(flow->dl_type)) {
4248 struct ovs_key_mpls *mpls_key;
4249 int i, n;
4250
4251 n = flow_count_mpls_labels(flow, NULL);
4252 if (export_mask) {
4253 n = MIN(n, parms->support.max_mpls_depth);
4254 }
4255 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
4256 n * sizeof *mpls_key);
4257 for (i = 0; i < n; i++) {
4258 mpls_key[i].mpls_lse = data->mpls_lse[i];
4259 }
4260 }
4261
4262 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4263 if (flow->nw_proto == IPPROTO_TCP) {
4264 union ovs_key_tp *tcp_key;
4265
4266 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
4267 sizeof *tcp_key);
4268 get_tp_key(data, tcp_key);
4269 if (data->tcp_flags) {
4270 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
4271 }
4272 } else if (flow->nw_proto == IPPROTO_UDP) {
4273 union ovs_key_tp *udp_key;
4274
4275 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
4276 sizeof *udp_key);
4277 get_tp_key(data, udp_key);
4278 } else if (flow->nw_proto == IPPROTO_SCTP) {
4279 union ovs_key_tp *sctp_key;
4280
4281 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
4282 sizeof *sctp_key);
4283 get_tp_key(data, sctp_key);
4284 } else if (flow->dl_type == htons(ETH_TYPE_IP)
4285 && flow->nw_proto == IPPROTO_ICMP) {
4286 struct ovs_key_icmp *icmp_key;
4287
4288 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
4289 sizeof *icmp_key);
4290 icmp_key->icmp_type = ntohs(data->tp_src);
4291 icmp_key->icmp_code = ntohs(data->tp_dst);
4292 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
4293 && flow->nw_proto == IPPROTO_ICMPV6) {
4294 struct ovs_key_icmpv6 *icmpv6_key;
4295
4296 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
4297 sizeof *icmpv6_key);
4298 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
4299 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
4300
4301 if (flow->tp_dst == htons(0)
4302 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
4303 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
4304 && (!export_mask || (data->tp_src == htons(0xffff)
4305 && data->tp_dst == htons(0xffff)))) {
4306
4307 struct ovs_key_nd *nd_key;
4308
4309 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
4310 sizeof *nd_key);
4311 memcpy(nd_key->nd_target, &data->nd_target,
4312 sizeof nd_key->nd_target);
4313 nd_key->nd_sll = data->arp_sha;
4314 nd_key->nd_tll = data->arp_tha;
4315 }
4316 }
4317 }
4318
4319 unencap:
4320 if (encap) {
4321 nl_msg_end_nested(buf, encap);
4322 }
4323 }
4324
4325 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
4326 *
4327 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
4328 * capable of being expanded to allow for that much space. */
4329 void
4330 odp_flow_key_from_flow(const struct odp_flow_key_parms *parms,
4331 struct ofpbuf *buf)
4332 {
4333 odp_flow_key_from_flow__(parms, false, buf);
4334 }
4335
4336 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
4337 * 'buf'.
4338 *
4339 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
4340 * capable of being expanded to allow for that much space. */
4341 void
4342 odp_flow_key_from_mask(const struct odp_flow_key_parms *parms,
4343 struct ofpbuf *buf)
4344 {
4345 odp_flow_key_from_flow__(parms, true, buf);
4346 }
4347
4348 /* Generate ODP flow key from the given packet metadata */
4349 void
4350 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
4351 {
4352 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
4353
4354 if (flow_tnl_dst_is_set(&md->tunnel)) {
4355 tun_key_to_attr(buf, &md->tunnel, &md->tunnel, NULL);
4356 }
4357
4358 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
4359
4360 if (md->ct_state) {
4361 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_STATE,
4362 ovs_to_odp_ct_state(md->ct_state));
4363 if (md->ct_zone) {
4364 nl_msg_put_u16(buf, OVS_KEY_ATTR_CT_ZONE, md->ct_zone);
4365 }
4366 if (md->ct_mark) {
4367 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_MARK, md->ct_mark);
4368 }
4369 if (!ovs_u128_is_zero(&md->ct_label)) {
4370 nl_msg_put_unspec(buf, OVS_KEY_ATTR_CT_LABELS, &md->ct_label,
4371 sizeof(md->ct_label));
4372 }
4373 }
4374
4375 /* Add an ingress port attribute if 'odp_in_port' is not the magical
4376 * value "ODPP_NONE". */
4377 if (md->in_port.odp_port != ODPP_NONE) {
4378 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
4379 }
4380 }
4381
4382 /* Generate packet metadata from the given ODP flow key. */
4383 void
4384 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
4385 struct pkt_metadata *md)
4386 {
4387 const struct nlattr *nla;
4388 size_t left;
4389 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
4390 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
4391 1u << OVS_KEY_ATTR_IN_PORT;
4392
4393 pkt_metadata_init(md, ODPP_NONE);
4394
4395 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
4396 uint16_t type = nl_attr_type(nla);
4397 size_t len = nl_attr_get_size(nla);
4398 int expected_len = odp_key_attr_len(ovs_flow_key_attr_lens,
4399 OVS_KEY_ATTR_MAX, type);
4400
4401 if (len != expected_len && expected_len >= 0) {
4402 continue;
4403 }
4404
4405 switch (type) {
4406 case OVS_KEY_ATTR_RECIRC_ID:
4407 md->recirc_id = nl_attr_get_u32(nla);
4408 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
4409 break;
4410 case OVS_KEY_ATTR_DP_HASH:
4411 md->dp_hash = nl_attr_get_u32(nla);
4412 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
4413 break;
4414 case OVS_KEY_ATTR_PRIORITY:
4415 md->skb_priority = nl_attr_get_u32(nla);
4416 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
4417 break;
4418 case OVS_KEY_ATTR_SKB_MARK:
4419 md->pkt_mark = nl_attr_get_u32(nla);
4420 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
4421 break;
4422 case OVS_KEY_ATTR_CT_STATE:
4423 md->ct_state = odp_to_ovs_ct_state(nl_attr_get_u32(nla));
4424 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_STATE);
4425 break;
4426 case OVS_KEY_ATTR_CT_ZONE:
4427 md->ct_zone = nl_attr_get_u16(nla);
4428 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_ZONE);
4429 break;
4430 case OVS_KEY_ATTR_CT_MARK:
4431 md->ct_mark = nl_attr_get_u32(nla);
4432 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_MARK);
4433 break;
4434 case OVS_KEY_ATTR_CT_LABELS: {
4435 const ovs_u128 *cl = nl_attr_get(nla);
4436
4437 md->ct_label = *cl;
4438 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_LABELS);
4439 break;
4440 }
4441 case OVS_KEY_ATTR_TUNNEL: {
4442 enum odp_key_fitness res;
4443
4444 res = odp_tun_key_from_attr(nla, true, &md->tunnel);
4445 if (res == ODP_FIT_ERROR) {
4446 memset(&md->tunnel, 0, sizeof md->tunnel);
4447 } else if (res == ODP_FIT_PERFECT) {
4448 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
4449 }
4450 break;
4451 }
4452 case OVS_KEY_ATTR_IN_PORT:
4453 md->in_port.odp_port = nl_attr_get_odp_port(nla);
4454 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
4455 break;
4456 default:
4457 break;
4458 }
4459
4460 if (!wanted_attrs) {
4461 return; /* Have everything. */
4462 }
4463 }
4464 }
4465
4466 uint32_t
4467 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
4468 {
4469 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
4470 return hash_words(ALIGNED_CAST(const uint32_t *, key),
4471 key_len / sizeof(uint32_t), 0);
4472 }
4473
4474 static void
4475 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
4476 uint64_t attrs, int out_of_range_attr,
4477 const struct nlattr *key, size_t key_len)
4478 {
4479 struct ds s;
4480 int i;
4481
4482 if (VLOG_DROP_DBG(rl)) {
4483 return;
4484 }
4485
4486 ds_init(&s);
4487 for (i = 0; i < 64; i++) {
4488 if (attrs & (UINT64_C(1) << i)) {
4489 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4490
4491 ds_put_format(&s, " %s",
4492 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
4493 }
4494 }
4495 if (out_of_range_attr) {
4496 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
4497 }
4498
4499 ds_put_cstr(&s, ": ");
4500 odp_flow_key_format(key, key_len, &s);
4501
4502 VLOG_DBG("%s:%s", title, ds_cstr(&s));
4503 ds_destroy(&s);
4504 }
4505
4506 static uint8_t
4507 odp_to_ovs_frag(uint8_t odp_frag, bool is_mask)
4508 {
4509 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4510
4511 if (is_mask) {
4512 return odp_frag ? FLOW_NW_FRAG_MASK : 0;
4513 }
4514
4515 if (odp_frag > OVS_FRAG_TYPE_LATER) {
4516 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
4517 return 0xff; /* Error. */
4518 }
4519
4520 return (odp_frag == OVS_FRAG_TYPE_NONE) ? 0
4521 : (odp_frag == OVS_FRAG_TYPE_FIRST) ? FLOW_NW_FRAG_ANY
4522 : FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER;
4523 }
4524
4525 static bool
4526 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
4527 const struct nlattr *attrs[], uint64_t *present_attrsp,
4528 int *out_of_range_attrp)
4529 {
4530 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4531 const struct nlattr *nla;
4532 uint64_t present_attrs;
4533 size_t left;
4534
4535 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
4536 present_attrs = 0;
4537 *out_of_range_attrp = 0;
4538 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
4539 uint16_t type = nl_attr_type(nla);
4540 size_t len = nl_attr_get_size(nla);
4541 int expected_len = odp_key_attr_len(ovs_flow_key_attr_lens,
4542 OVS_KEY_ATTR_MAX, type);
4543
4544 if (len != expected_len && expected_len >= 0) {
4545 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4546
4547 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
4548 "length %d", ovs_key_attr_to_string(type, namebuf,
4549 sizeof namebuf),
4550 len, expected_len);
4551 return false;
4552 }
4553
4554 if (type > OVS_KEY_ATTR_MAX) {
4555 *out_of_range_attrp = type;
4556 } else {
4557 if (present_attrs & (UINT64_C(1) << type)) {
4558 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4559
4560 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
4561 ovs_key_attr_to_string(type,
4562 namebuf, sizeof namebuf));
4563 return false;
4564 }
4565
4566 present_attrs |= UINT64_C(1) << type;
4567 attrs[type] = nla;
4568 }
4569 }
4570 if (left) {
4571 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
4572 return false;
4573 }
4574
4575 *present_attrsp = present_attrs;
4576 return true;
4577 }
4578
4579 static enum odp_key_fitness
4580 check_expectations(uint64_t present_attrs, int out_of_range_attr,
4581 uint64_t expected_attrs,
4582 const struct nlattr *key, size_t key_len)
4583 {
4584 uint64_t missing_attrs;
4585 uint64_t extra_attrs;
4586
4587 missing_attrs = expected_attrs & ~present_attrs;
4588 if (missing_attrs) {
4589 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4590 log_odp_key_attributes(&rl, "expected but not present",
4591 missing_attrs, 0, key, key_len);
4592 return ODP_FIT_TOO_LITTLE;
4593 }
4594
4595 extra_attrs = present_attrs & ~expected_attrs;
4596 if (extra_attrs || out_of_range_attr) {
4597 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4598 log_odp_key_attributes(&rl, "present but not expected",
4599 extra_attrs, out_of_range_attr, key, key_len);
4600 return ODP_FIT_TOO_MUCH;
4601 }
4602
4603 return ODP_FIT_PERFECT;
4604 }
4605
4606 static bool
4607 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4608 uint64_t present_attrs, uint64_t *expected_attrs,
4609 struct flow *flow, const struct flow *src_flow)
4610 {
4611 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4612 bool is_mask = flow != src_flow;
4613
4614 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
4615 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
4616 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
4617 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
4618 ntohs(flow->dl_type));
4619 return false;
4620 }
4621 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
4622 flow->dl_type != htons(0xffff)) {
4623 return false;
4624 }
4625 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
4626 } else {
4627 if (!is_mask) {
4628 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
4629 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
4630 /* See comments in odp_flow_key_from_flow__(). */
4631 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
4632 return false;
4633 }
4634 }
4635 return true;
4636 }
4637
4638 static enum odp_key_fitness
4639 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4640 uint64_t present_attrs, int out_of_range_attr,
4641 uint64_t expected_attrs, struct flow *flow,
4642 const struct nlattr *key, size_t key_len,
4643 const struct flow *src_flow)
4644 {
4645 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4646 bool is_mask = src_flow != flow;
4647 const void *check_start = NULL;
4648 size_t check_len = 0;
4649 enum ovs_key_attr expected_bit = 0xff;
4650
4651 if (eth_type_mpls(src_flow->dl_type)) {
4652 if (!is_mask || present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
4653 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
4654 }
4655 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
4656 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
4657 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
4658 int n = size / sizeof(ovs_be32);
4659 int i;
4660
4661 if (!size || size % sizeof(ovs_be32)) {
4662 return ODP_FIT_ERROR;
4663 }
4664 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
4665 return ODP_FIT_ERROR;
4666 }
4667
4668 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
4669 flow->mpls_lse[i] = mpls_lse[i];
4670 }
4671 if (n > FLOW_MAX_MPLS_LABELS) {
4672 return ODP_FIT_TOO_MUCH;
4673 }
4674
4675 if (!is_mask) {
4676 /* BOS may be set only in the innermost label. */
4677 for (i = 0; i < n - 1; i++) {
4678 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
4679 return ODP_FIT_ERROR;
4680 }
4681 }
4682
4683 /* BOS must be set in the innermost label. */
4684 if (n < FLOW_MAX_MPLS_LABELS
4685 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
4686 return ODP_FIT_TOO_LITTLE;
4687 }
4688 }
4689 }
4690
4691 goto done;
4692 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
4693 if (!is_mask) {
4694 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
4695 }
4696 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
4697 const struct ovs_key_ipv4 *ipv4_key;
4698
4699 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
4700 put_ipv4_key(ipv4_key, flow, is_mask);
4701 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
4702 return ODP_FIT_ERROR;
4703 }
4704 if (is_mask) {
4705 check_start = ipv4_key;
4706 check_len = sizeof *ipv4_key;
4707 expected_bit = OVS_KEY_ATTR_IPV4;
4708 }
4709 }
4710 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
4711 if (!is_mask) {
4712 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
4713 }
4714 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
4715 const struct ovs_key_ipv6 *ipv6_key;
4716
4717 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
4718 put_ipv6_key(ipv6_key, flow, is_mask);
4719 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
4720 return ODP_FIT_ERROR;
4721 }
4722 if (is_mask) {
4723 check_start = ipv6_key;
4724 check_len = sizeof *ipv6_key;
4725 expected_bit = OVS_KEY_ATTR_IPV6;
4726 }
4727 }
4728 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
4729 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
4730 if (!is_mask) {
4731 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
4732 }
4733 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
4734 const struct ovs_key_arp *arp_key;
4735
4736 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
4737 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
4738 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
4739 "key", ntohs(arp_key->arp_op));
4740 return ODP_FIT_ERROR;
4741 }
4742 put_arp_key(arp_key, flow);
4743 if (is_mask) {
4744 check_start = arp_key;
4745 check_len = sizeof *arp_key;
4746 expected_bit = OVS_KEY_ATTR_ARP;
4747 }
4748 }
4749 } else {
4750 goto done;
4751 }
4752 if (check_len > 0) { /* Happens only when 'is_mask'. */
4753 if (!is_all_zeros(check_start, check_len) &&
4754 flow->dl_type != htons(0xffff)) {
4755 return ODP_FIT_ERROR;
4756 } else {
4757 expected_attrs |= UINT64_C(1) << expected_bit;
4758 }
4759 }
4760
4761 expected_bit = OVS_KEY_ATTR_UNSPEC;
4762 if (src_flow->nw_proto == IPPROTO_TCP
4763 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4764 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4765 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4766 if (!is_mask) {
4767 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
4768 }
4769 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
4770 const union ovs_key_tp *tcp_key;
4771
4772 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
4773 put_tp_key(tcp_key, flow);
4774 expected_bit = OVS_KEY_ATTR_TCP;
4775 }
4776 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
4777 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
4778 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
4779 }
4780 } else if (src_flow->nw_proto == IPPROTO_UDP
4781 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4782 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4783 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4784 if (!is_mask) {
4785 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
4786 }
4787 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
4788 const union ovs_key_tp *udp_key;
4789
4790 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
4791 put_tp_key(udp_key, flow);
4792 expected_bit = OVS_KEY_ATTR_UDP;
4793 }
4794 } else if (src_flow->nw_proto == IPPROTO_SCTP
4795 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4796 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4797 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4798 if (!is_mask) {
4799 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
4800 }
4801 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
4802 const union ovs_key_tp *sctp_key;
4803
4804 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
4805 put_tp_key(sctp_key, flow);
4806 expected_bit = OVS_KEY_ATTR_SCTP;
4807 }
4808 } else if (src_flow->nw_proto == IPPROTO_ICMP
4809 && src_flow->dl_type == htons(ETH_TYPE_IP)
4810 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4811 if (!is_mask) {
4812 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
4813 }
4814 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
4815 const struct ovs_key_icmp *icmp_key;
4816
4817 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
4818 flow->tp_src = htons(icmp_key->icmp_type);
4819 flow->tp_dst = htons(icmp_key->icmp_code);
4820 expected_bit = OVS_KEY_ATTR_ICMP;
4821 }
4822 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
4823 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
4824 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4825 if (!is_mask) {
4826 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
4827 }
4828 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
4829 const struct ovs_key_icmpv6 *icmpv6_key;
4830
4831 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
4832 flow->tp_src = htons(icmpv6_key->icmpv6_type);
4833 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
4834 expected_bit = OVS_KEY_ATTR_ICMPV6;
4835 if (src_flow->tp_dst == htons(0) &&
4836 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
4837 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
4838 if (!is_mask) {
4839 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
4840 }
4841 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
4842 const struct ovs_key_nd *nd_key;
4843
4844 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
4845 memcpy(&flow->nd_target, nd_key->nd_target,
4846 sizeof flow->nd_target);
4847 flow->arp_sha = nd_key->nd_sll;
4848 flow->arp_tha = nd_key->nd_tll;
4849 if (is_mask) {
4850 if (!is_all_zeros(nd_key, sizeof *nd_key) &&
4851 (flow->tp_src != htons(0xffff) ||
4852 flow->tp_dst != htons(0xffff))) {
4853 return ODP_FIT_ERROR;
4854 } else {
4855 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
4856 }
4857 }
4858 }
4859 }
4860 }
4861 }
4862 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
4863 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
4864 return ODP_FIT_ERROR;
4865 } else {
4866 expected_attrs |= UINT64_C(1) << expected_bit;
4867 }
4868 }
4869
4870 done:
4871 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
4872 key, key_len);
4873 }
4874
4875 /* Parse 802.1Q header then encapsulated L3 attributes. */
4876 static enum odp_key_fitness
4877 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4878 uint64_t present_attrs, int out_of_range_attr,
4879 uint64_t expected_attrs, struct flow *flow,
4880 const struct nlattr *key, size_t key_len,
4881 const struct flow *src_flow)
4882 {
4883 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4884 bool is_mask = src_flow != flow;
4885
4886 const struct nlattr *encap
4887 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
4888 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
4889 enum odp_key_fitness encap_fitness;
4890 enum odp_key_fitness fitness;
4891
4892 /* Calculate fitness of outer attributes. */
4893 if (!is_mask) {
4894 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
4895 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
4896 } else {
4897 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
4898 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
4899 }
4900 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
4901 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
4902 }
4903 }
4904 fitness = check_expectations(present_attrs, out_of_range_attr,
4905 expected_attrs, key, key_len);
4906
4907 /* Set vlan_tci.
4908 * Remove the TPID from dl_type since it's not the real Ethertype. */
4909 flow->dl_type = htons(0);
4910 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
4911 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
4912 : htons(0));
4913 if (!is_mask) {
4914 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
4915 return ODP_FIT_TOO_LITTLE;
4916 } else if (flow->vlan_tci == htons(0)) {
4917 /* Corner case for a truncated 802.1Q header. */
4918 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
4919 return ODP_FIT_TOO_MUCH;
4920 }
4921 return fitness;
4922 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
4923 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
4924 "but CFI bit is not set", ntohs(flow->vlan_tci));
4925 return ODP_FIT_ERROR;
4926 }
4927 } else {
4928 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
4929 return fitness;
4930 }
4931 }
4932
4933 /* Now parse the encapsulated attributes. */
4934 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
4935 attrs, &present_attrs, &out_of_range_attr)) {
4936 return ODP_FIT_ERROR;
4937 }
4938 expected_attrs = 0;
4939
4940 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
4941 return ODP_FIT_ERROR;
4942 }
4943 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4944 expected_attrs, flow, key, key_len,
4945 src_flow);
4946
4947 /* The overall fitness is the worse of the outer and inner attributes. */
4948 return MAX(fitness, encap_fitness);
4949 }
4950
4951 static enum odp_key_fitness
4952 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
4953 const struct nlattr *src_key, size_t src_key_len,
4954 struct flow *flow, const struct flow *src_flow,
4955 bool udpif)
4956 {
4957 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
4958 uint64_t expected_attrs;
4959 uint64_t present_attrs;
4960 int out_of_range_attr;
4961 bool is_mask = src_flow != flow;
4962
4963 memset(flow, 0, sizeof *flow);
4964
4965 /* Parse attributes. */
4966 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
4967 &out_of_range_attr)) {
4968 return ODP_FIT_ERROR;
4969 }
4970 expected_attrs = 0;
4971
4972 /* Metadata. */
4973 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
4974 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
4975 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
4976 } else if (is_mask) {
4977 /* Always exact match recirc_id if it is not specified. */
4978 flow->recirc_id = UINT32_MAX;
4979 }
4980
4981 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
4982 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
4983 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
4984 }
4985 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
4986 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
4987 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
4988 }
4989
4990 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
4991 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
4992 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
4993 }
4994
4995 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_STATE)) {
4996 uint32_t odp_state = nl_attr_get_u32(attrs[OVS_KEY_ATTR_CT_STATE]);
4997
4998 flow->ct_state = odp_to_ovs_ct_state(odp_state);
4999 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_STATE;
5000 }
5001 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_ZONE)) {
5002 flow->ct_zone = nl_attr_get_u16(attrs[OVS_KEY_ATTR_CT_ZONE]);
5003 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_ZONE;
5004 }
5005 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_MARK)) {
5006 flow->ct_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_CT_MARK]);
5007 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_MARK;
5008 }
5009 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_LABELS)) {
5010 const ovs_u128 *cl = nl_attr_get(attrs[OVS_KEY_ATTR_CT_LABELS]);
5011
5012 flow->ct_label = *cl;
5013 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_LABELS;
5014 }
5015
5016 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
5017 enum odp_key_fitness res;
5018
5019 res = odp_tun_key_from_attr__(attrs[OVS_KEY_ATTR_TUNNEL],
5020 is_mask ? src_key : NULL,
5021 src_key_len, &src_flow->tunnel,
5022 &flow->tunnel, udpif);
5023 if (res == ODP_FIT_ERROR) {
5024 return ODP_FIT_ERROR;
5025 } else if (res == ODP_FIT_PERFECT) {
5026 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
5027 }
5028 }
5029
5030 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
5031 flow->in_port.odp_port
5032 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
5033 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
5034 } else if (!is_mask) {
5035 flow->in_port.odp_port = ODPP_NONE;
5036 }
5037
5038 /* Ethernet header. */
5039 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
5040 const struct ovs_key_ethernet *eth_key;
5041
5042 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
5043 put_ethernet_key(eth_key, flow);
5044 if (is_mask) {
5045 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
5046 }
5047 }
5048 if (!is_mask) {
5049 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
5050 }
5051
5052 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
5053 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
5054 src_flow)) {
5055 return ODP_FIT_ERROR;
5056 }
5057
5058 if (is_mask
5059 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
5060 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
5061 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
5062 expected_attrs, flow, key, key_len, src_flow);
5063 }
5064 if (is_mask) {
5065 /* A missing VLAN mask means exact match on vlan_tci 0 (== no VLAN). */
5066 flow->vlan_tci = htons(0xffff);
5067 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
5068 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
5069 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
5070 }
5071 }
5072 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
5073 expected_attrs, flow, key, key_len, src_flow);
5074 }
5075
5076 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
5077 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
5078 * 'key' fits our expectations for what a flow key should contain.
5079 *
5080 * The 'in_port' will be the datapath's understanding of the port. The
5081 * caller will need to translate with odp_port_to_ofp_port() if the
5082 * OpenFlow port is needed.
5083 *
5084 * This function doesn't take the packet itself as an argument because none of
5085 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
5086 * it is always possible to infer which additional attribute(s) should appear
5087 * by looking at the attributes for lower-level protocols, e.g. if the network
5088 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
5089 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
5090 * must be absent. */
5091 enum odp_key_fitness
5092 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
5093 struct flow *flow)
5094 {
5095 return odp_flow_key_to_flow__(key, key_len, NULL, 0, flow, flow, false);
5096 }
5097
5098 /* Converts the 'mask_key_len' bytes of OVS_KEY_ATTR_* attributes in 'mask_key'
5099 * to a mask structure in 'mask'. 'flow' must be a previously translated flow
5100 * corresponding to 'mask' and similarly flow_key/flow_key_len must be the
5101 * attributes from that flow. Returns an ODP_FIT_* value that indicates how
5102 * well 'key' fits our expectations for what a flow key should contain. */
5103 enum odp_key_fitness
5104 odp_flow_key_to_mask(const struct nlattr *mask_key, size_t mask_key_len,
5105 const struct nlattr *flow_key, size_t flow_key_len,
5106 struct flow *mask, const struct flow *flow)
5107 {
5108 return odp_flow_key_to_flow__(mask_key, mask_key_len, flow_key, flow_key_len,
5109 mask, flow, false);
5110 }
5111
5112 /* These functions are similar to their non-"_udpif" variants but output a
5113 * 'flow' that is suitable for fast-path packet processing.
5114 *
5115 * Some fields have different representation for flow setup and per-
5116 * packet processing (i.e. different between ofproto-dpif and userspace
5117 * datapath). In particular, with the non-"_udpif" functions, struct
5118 * tun_metadata is in the per-flow format (using 'present.map' and 'opts.u8');
5119 * with these functions, struct tun_metadata is in the per-packet format
5120 * (using 'present.len' and 'opts.gnv'). */
5121 enum odp_key_fitness
5122 odp_flow_key_to_flow_udpif(const struct nlattr *key, size_t key_len,
5123 struct flow *flow)
5124 {
5125 return odp_flow_key_to_flow__(key, key_len, NULL, 0, flow, flow, true);
5126 }
5127
5128 enum odp_key_fitness
5129 odp_flow_key_to_mask_udpif(const struct nlattr *mask_key, size_t mask_key_len,
5130 const struct nlattr *flow_key, size_t flow_key_len,
5131 struct flow *mask, const struct flow *flow)
5132 {
5133 return odp_flow_key_to_flow__(mask_key, mask_key_len, flow_key, flow_key_len,
5134 mask, flow, true);
5135 }
5136
5137 /* Returns 'fitness' as a string, for use in debug messages. */
5138 const char *
5139 odp_key_fitness_to_string(enum odp_key_fitness fitness)
5140 {
5141 switch (fitness) {
5142 case ODP_FIT_PERFECT:
5143 return "OK";
5144 case ODP_FIT_TOO_MUCH:
5145 return "too_much";
5146 case ODP_FIT_TOO_LITTLE:
5147 return "too_little";
5148 case ODP_FIT_ERROR:
5149 return "error";
5150 default:
5151 return "<unknown>";
5152 }
5153 }
5154
5155 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
5156 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
5157 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
5158 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
5159 * null, then the return value is not meaningful.) */
5160 size_t
5161 odp_put_userspace_action(uint32_t pid,
5162 const void *userdata, size_t userdata_size,
5163 odp_port_t tunnel_out_port,
5164 bool include_actions,
5165 struct ofpbuf *odp_actions)
5166 {
5167 size_t userdata_ofs;
5168 size_t offset;
5169
5170 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
5171 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
5172 if (userdata) {
5173 userdata_ofs = odp_actions->size + NLA_HDRLEN;
5174
5175 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
5176 * module before Linux 3.10 required the userdata to be exactly 8 bytes
5177 * long:
5178 *
5179 * - The kernel rejected shorter userdata with -ERANGE.
5180 *
5181 * - The kernel silently dropped userdata beyond the first 8 bytes.
5182 *
5183 * Thus, for maximum compatibility, always put at least 8 bytes. (We
5184 * separately disable features that required more than 8 bytes.) */
5185 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
5186 MAX(8, userdata_size)),
5187 userdata, userdata_size);
5188 } else {
5189 userdata_ofs = 0;
5190 }
5191 if (tunnel_out_port != ODPP_NONE) {
5192 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
5193 tunnel_out_port);
5194 }
5195 if (include_actions) {
5196 nl_msg_put_flag(odp_actions, OVS_USERSPACE_ATTR_ACTIONS);
5197 }
5198 nl_msg_end_nested(odp_actions, offset);
5199
5200 return userdata_ofs;
5201 }
5202
5203 void
5204 odp_put_tunnel_action(const struct flow_tnl *tunnel,
5205 struct ofpbuf *odp_actions)
5206 {
5207 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
5208 tun_key_to_attr(odp_actions, tunnel, tunnel, NULL);
5209 nl_msg_end_nested(odp_actions, offset);
5210 }
5211
5212 void
5213 odp_put_tnl_push_action(struct ofpbuf *odp_actions,
5214 struct ovs_action_push_tnl *data)
5215 {
5216 int size = offsetof(struct ovs_action_push_tnl, header);
5217
5218 size += data->header_len;
5219 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_TUNNEL_PUSH, data, size);
5220 }
5221
5222 \f
5223 /* The commit_odp_actions() function and its helpers. */
5224
5225 static void
5226 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
5227 const void *key, size_t key_size)
5228 {
5229 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
5230 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
5231 nl_msg_end_nested(odp_actions, offset);
5232 }
5233
5234 /* Masked set actions have a mask following the data within the netlink
5235 * attribute. The unmasked bits in the data will be cleared as the data
5236 * is copied to the action. */
5237 void
5238 commit_masked_set_action(struct ofpbuf *odp_actions,
5239 enum ovs_key_attr key_type,
5240 const void *key_, const void *mask_, size_t key_size)
5241 {
5242 size_t offset = nl_msg_start_nested(odp_actions,
5243 OVS_ACTION_ATTR_SET_MASKED);
5244 char *data = nl_msg_put_unspec_uninit(odp_actions, key_type, key_size * 2);
5245 const char *key = key_, *mask = mask_;
5246
5247 memcpy(data + key_size, mask, key_size);
5248 /* Clear unmasked bits while copying. */
5249 while (key_size--) {
5250 *data++ = *key++ & *mask++;
5251 }
5252 nl_msg_end_nested(odp_actions, offset);
5253 }
5254
5255 /* If any of the flow key data that ODP actions can modify are different in
5256 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
5257 * 'odp_actions' that change the flow tunneling information in key from
5258 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
5259 * same way. In other words, operates the same as commit_odp_actions(), but
5260 * only on tunneling information. */
5261 void
5262 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
5263 struct ofpbuf *odp_actions)
5264 {
5265 /* A valid IPV4_TUNNEL must have non-zero ip_dst; a valid IPv6 tunnel
5266 * must have non-zero ipv6_dst. */
5267 if (flow_tnl_dst_is_set(&flow->tunnel)) {
5268 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
5269 return;
5270 }
5271 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
5272 odp_put_tunnel_action(&base->tunnel, odp_actions);
5273 }
5274 }
5275
5276 static bool
5277 commit(enum ovs_key_attr attr, bool use_masked_set,
5278 const void *key, void *base, void *mask, size_t size,
5279 struct ofpbuf *odp_actions)
5280 {
5281 if (memcmp(key, base, size)) {
5282 bool fully_masked = odp_mask_is_exact(attr, mask, size);
5283
5284 if (use_masked_set && !fully_masked) {
5285 commit_masked_set_action(odp_actions, attr, key, mask, size);
5286 } else {
5287 if (!fully_masked) {
5288 memset(mask, 0xff, size);
5289 }
5290 commit_set_action(odp_actions, attr, key, size);
5291 }
5292 memcpy(base, key, size);
5293 return true;
5294 } else {
5295 /* Mask bits are set when we have either read or set the corresponding
5296 * values. Masked bits will be exact-matched, no need to set them
5297 * if the value did not actually change. */
5298 return false;
5299 }
5300 }
5301
5302 static void
5303 get_ethernet_key(const struct flow *flow, struct ovs_key_ethernet *eth)
5304 {
5305 eth->eth_src = flow->dl_src;
5306 eth->eth_dst = flow->dl_dst;
5307 }
5308
5309 static void
5310 put_ethernet_key(const struct ovs_key_ethernet *eth, struct flow *flow)
5311 {
5312 flow->dl_src = eth->eth_src;
5313 flow->dl_dst = eth->eth_dst;
5314 }
5315
5316 static void
5317 commit_set_ether_addr_action(const struct flow *flow, struct flow *base_flow,
5318 struct ofpbuf *odp_actions,
5319 struct flow_wildcards *wc,
5320 bool use_masked)
5321 {
5322 struct ovs_key_ethernet key, base, mask;
5323
5324 get_ethernet_key(flow, &key);
5325 get_ethernet_key(base_flow, &base);
5326 get_ethernet_key(&wc->masks, &mask);
5327
5328 if (commit(OVS_KEY_ATTR_ETHERNET, use_masked,
5329 &key, &base, &mask, sizeof key, odp_actions)) {
5330 put_ethernet_key(&base, base_flow);
5331 put_ethernet_key(&mask, &wc->masks);
5332 }
5333 }
5334
5335 static void
5336 pop_vlan(struct flow *base,
5337 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5338 {
5339 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
5340
5341 if (base->vlan_tci & htons(VLAN_CFI)) {
5342 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
5343 base->vlan_tci = 0;
5344 }
5345 }
5346
5347 static void
5348 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
5349 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5350 {
5351 if (base->vlan_tci == vlan_tci) {
5352 return;
5353 }
5354
5355 pop_vlan(base, odp_actions, wc);
5356 if (vlan_tci & htons(VLAN_CFI)) {
5357 struct ovs_action_push_vlan vlan;
5358
5359 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
5360 vlan.vlan_tci = vlan_tci;
5361 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
5362 &vlan, sizeof vlan);
5363 }
5364 base->vlan_tci = vlan_tci;
5365 }
5366
5367 /* Wildcarding already done at action translation time. */
5368 static void
5369 commit_mpls_action(const struct flow *flow, struct flow *base,
5370 struct ofpbuf *odp_actions)
5371 {
5372 int base_n = flow_count_mpls_labels(base, NULL);
5373 int flow_n = flow_count_mpls_labels(flow, NULL);
5374 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
5375 NULL);
5376
5377 while (base_n > common_n) {
5378 if (base_n - 1 == common_n && flow_n > common_n) {
5379 /* If there is only one more LSE in base than there are common
5380 * between base and flow; and flow has at least one more LSE than
5381 * is common then the topmost LSE of base may be updated using
5382 * set */
5383 struct ovs_key_mpls mpls_key;
5384
5385 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
5386 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
5387 &mpls_key, sizeof mpls_key);
5388 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
5389 common_n++;
5390 } else {
5391 /* Otherwise, if there more LSEs in base than are common between
5392 * base and flow then pop the topmost one. */
5393 ovs_be16 dl_type;
5394 bool popped;
5395
5396 /* If all the LSEs are to be popped and this is not the outermost
5397 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
5398 * POP_MPLS action instead of flow->dl_type.
5399 *
5400 * This is because the POP_MPLS action requires its ethertype
5401 * argument to be an MPLS ethernet type but in this case
5402 * flow->dl_type will be a non-MPLS ethernet type.
5403 *
5404 * When the final POP_MPLS action occurs it use flow->dl_type and
5405 * the and the resulting packet will have the desired dl_type. */
5406 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
5407 dl_type = htons(ETH_TYPE_MPLS);
5408 } else {
5409 dl_type = flow->dl_type;
5410 }
5411 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
5412 popped = flow_pop_mpls(base, base_n, flow->dl_type, NULL);
5413 ovs_assert(popped);
5414 base_n--;
5415 }
5416 }
5417
5418 /* If, after the above popping and setting, there are more LSEs in flow
5419 * than base then some LSEs need to be pushed. */
5420 while (base_n < flow_n) {
5421 struct ovs_action_push_mpls *mpls;
5422
5423 mpls = nl_msg_put_unspec_zero(odp_actions,
5424 OVS_ACTION_ATTR_PUSH_MPLS,
5425 sizeof *mpls);
5426 mpls->mpls_ethertype = flow->dl_type;
5427 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
5428 flow_push_mpls(base, base_n, mpls->mpls_ethertype, NULL);
5429 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
5430 base_n++;
5431 }
5432 }
5433
5434 static void
5435 get_ipv4_key(const struct flow *flow, struct ovs_key_ipv4 *ipv4, bool is_mask)
5436 {
5437 ipv4->ipv4_src = flow->nw_src;
5438 ipv4->ipv4_dst = flow->nw_dst;
5439 ipv4->ipv4_proto = flow->nw_proto;
5440 ipv4->ipv4_tos = flow->nw_tos;
5441 ipv4->ipv4_ttl = flow->nw_ttl;
5442 ipv4->ipv4_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
5443 }
5444
5445 static void
5446 put_ipv4_key(const struct ovs_key_ipv4 *ipv4, struct flow *flow, bool is_mask)
5447 {
5448 flow->nw_src = ipv4->ipv4_src;
5449 flow->nw_dst = ipv4->ipv4_dst;
5450 flow->nw_proto = ipv4->ipv4_proto;
5451 flow->nw_tos = ipv4->ipv4_tos;
5452 flow->nw_ttl = ipv4->ipv4_ttl;
5453 flow->nw_frag = odp_to_ovs_frag(ipv4->ipv4_frag, is_mask);
5454 }
5455
5456 static void
5457 commit_set_ipv4_action(const struct flow *flow, struct flow *base_flow,
5458 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5459 bool use_masked)
5460 {
5461 struct ovs_key_ipv4 key, mask, base;
5462
5463 /* Check that nw_proto and nw_frag remain unchanged. */
5464 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
5465 flow->nw_frag == base_flow->nw_frag);
5466
5467 get_ipv4_key(flow, &key, false);
5468 get_ipv4_key(base_flow, &base, false);
5469 get_ipv4_key(&wc->masks, &mask, true);
5470 mask.ipv4_proto = 0; /* Not writeable. */
5471 mask.ipv4_frag = 0; /* Not writable. */
5472
5473 if (commit(OVS_KEY_ATTR_IPV4, use_masked, &key, &base, &mask, sizeof key,
5474 odp_actions)) {
5475 put_ipv4_key(&base, base_flow, false);
5476 if (mask.ipv4_proto != 0) { /* Mask was changed by commit(). */
5477 put_ipv4_key(&mask, &wc->masks, true);
5478 }
5479 }
5480 }
5481
5482 static void
5483 get_ipv6_key(const struct flow *flow, struct ovs_key_ipv6 *ipv6, bool is_mask)
5484 {
5485 memcpy(ipv6->ipv6_src, &flow->ipv6_src, sizeof ipv6->ipv6_src);
5486 memcpy(ipv6->ipv6_dst, &flow->ipv6_dst, sizeof ipv6->ipv6_dst);
5487 ipv6->ipv6_label = flow->ipv6_label;
5488 ipv6->ipv6_proto = flow->nw_proto;
5489 ipv6->ipv6_tclass = flow->nw_tos;
5490 ipv6->ipv6_hlimit = flow->nw_ttl;
5491 ipv6->ipv6_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
5492 }
5493
5494 static void
5495 put_ipv6_key(const struct ovs_key_ipv6 *ipv6, struct flow *flow, bool is_mask)
5496 {
5497 memcpy(&flow->ipv6_src, ipv6->ipv6_src, sizeof flow->ipv6_src);
5498 memcpy(&flow->ipv6_dst, ipv6->ipv6_dst, sizeof flow->ipv6_dst);
5499 flow->ipv6_label = ipv6->ipv6_label;
5500 flow->nw_proto = ipv6->ipv6_proto;
5501 flow->nw_tos = ipv6->ipv6_tclass;
5502 flow->nw_ttl = ipv6->ipv6_hlimit;
5503 flow->nw_frag = odp_to_ovs_frag(ipv6->ipv6_frag, is_mask);
5504 }
5505
5506 static void
5507 commit_set_ipv6_action(const struct flow *flow, struct flow *base_flow,
5508 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5509 bool use_masked)
5510 {
5511 struct ovs_key_ipv6 key, mask, base;
5512
5513 /* Check that nw_proto and nw_frag remain unchanged. */
5514 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
5515 flow->nw_frag == base_flow->nw_frag);
5516
5517 get_ipv6_key(flow, &key, false);
5518 get_ipv6_key(base_flow, &base, false);
5519 get_ipv6_key(&wc->masks, &mask, true);
5520 mask.ipv6_proto = 0; /* Not writeable. */
5521 mask.ipv6_frag = 0; /* Not writable. */
5522
5523 if (commit(OVS_KEY_ATTR_IPV6, use_masked, &key, &base, &mask, sizeof key,
5524 odp_actions)) {
5525 put_ipv6_key(&base, base_flow, false);
5526 if (mask.ipv6_proto != 0) { /* Mask was changed by commit(). */
5527 put_ipv6_key(&mask, &wc->masks, true);
5528 }
5529 }
5530 }
5531
5532 static void
5533 get_arp_key(const struct flow *flow, struct ovs_key_arp *arp)
5534 {
5535 /* ARP key has padding, clear it. */
5536 memset(arp, 0, sizeof *arp);
5537
5538 arp->arp_sip = flow->nw_src;
5539 arp->arp_tip = flow->nw_dst;
5540 arp->arp_op = htons(flow->nw_proto);
5541 arp->arp_sha = flow->arp_sha;
5542 arp->arp_tha = flow->arp_tha;
5543 }
5544
5545 static void
5546 put_arp_key(const struct ovs_key_arp *arp, struct flow *flow)
5547 {
5548 flow->nw_src = arp->arp_sip;
5549 flow->nw_dst = arp->arp_tip;
5550 flow->nw_proto = ntohs(arp->arp_op);
5551 flow->arp_sha = arp->arp_sha;
5552 flow->arp_tha = arp->arp_tha;
5553 }
5554
5555 static enum slow_path_reason
5556 commit_set_arp_action(const struct flow *flow, struct flow *base_flow,
5557 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5558 {
5559 struct ovs_key_arp key, mask, base;
5560
5561 get_arp_key(flow, &key);
5562 get_arp_key(base_flow, &base);
5563 get_arp_key(&wc->masks, &mask);
5564
5565 if (commit(OVS_KEY_ATTR_ARP, true, &key, &base, &mask, sizeof key,
5566 odp_actions)) {
5567 put_arp_key(&base, base_flow);
5568 put_arp_key(&mask, &wc->masks);
5569 return SLOW_ACTION;
5570 }
5571 return 0;
5572 }
5573
5574 static void
5575 get_icmp_key(const struct flow *flow, struct ovs_key_icmp *icmp)
5576 {
5577 /* icmp_type and icmp_code are stored in tp_src and tp_dst, respectively */
5578 icmp->icmp_type = ntohs(flow->tp_src);
5579 icmp->icmp_code = ntohs(flow->tp_dst);
5580 }
5581
5582 static void
5583 put_icmp_key(const struct ovs_key_icmp *icmp, struct flow *flow)
5584 {
5585 /* icmp_type and icmp_code are stored in tp_src and tp_dst, respectively */
5586 flow->tp_src = htons(icmp->icmp_type);
5587 flow->tp_dst = htons(icmp->icmp_code);
5588 }
5589
5590 static enum slow_path_reason
5591 commit_set_icmp_action(const struct flow *flow, struct flow *base_flow,
5592 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5593 {
5594 struct ovs_key_icmp key, mask, base;
5595 enum ovs_key_attr attr;
5596
5597 get_icmp_key(flow, &key);
5598 get_icmp_key(base_flow, &base);
5599 get_icmp_key(&wc->masks, &mask);
5600
5601 attr = flow->dl_type == htons(ETH_TYPE_IP) ? OVS_KEY_ATTR_ICMP
5602 : OVS_KEY_ATTR_ICMPV6;
5603 if (commit(attr, false, &key, &base, &mask, sizeof key, odp_actions)) {
5604 put_icmp_key(&base, base_flow);
5605 put_icmp_key(&mask, &wc->masks);
5606 return SLOW_ACTION;
5607 }
5608 return 0;
5609 }
5610
5611 static void
5612 get_nd_key(const struct flow *flow, struct ovs_key_nd *nd)
5613 {
5614 memcpy(nd->nd_target, &flow->nd_target, sizeof flow->nd_target);
5615 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
5616 nd->nd_sll = flow->arp_sha;
5617 nd->nd_tll = flow->arp_tha;
5618 }
5619
5620 static void
5621 put_nd_key(const struct ovs_key_nd *nd, struct flow *flow)
5622 {
5623 memcpy(&flow->nd_target, nd->nd_target, sizeof flow->nd_target);
5624 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
5625 flow->arp_sha = nd->nd_sll;
5626 flow->arp_tha = nd->nd_tll;
5627 }
5628
5629 static enum slow_path_reason
5630 commit_set_nd_action(const struct flow *flow, struct flow *base_flow,
5631 struct ofpbuf *odp_actions,
5632 struct flow_wildcards *wc, bool use_masked)
5633 {
5634 struct ovs_key_nd key, mask, base;
5635
5636 get_nd_key(flow, &key);
5637 get_nd_key(base_flow, &base);
5638 get_nd_key(&wc->masks, &mask);
5639
5640 if (commit(OVS_KEY_ATTR_ND, use_masked, &key, &base, &mask, sizeof key,
5641 odp_actions)) {
5642 put_nd_key(&base, base_flow);
5643 put_nd_key(&mask, &wc->masks);
5644 return SLOW_ACTION;
5645 }
5646
5647 return 0;
5648 }
5649
5650 static enum slow_path_reason
5651 commit_set_nw_action(const struct flow *flow, struct flow *base,
5652 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5653 bool use_masked)
5654 {
5655 /* Check if 'flow' really has an L3 header. */
5656 if (!flow->nw_proto) {
5657 return 0;
5658 }
5659
5660 switch (ntohs(base->dl_type)) {
5661 case ETH_TYPE_IP:
5662 commit_set_ipv4_action(flow, base, odp_actions, wc, use_masked);
5663 break;
5664
5665 case ETH_TYPE_IPV6:
5666 commit_set_ipv6_action(flow, base, odp_actions, wc, use_masked);
5667 return commit_set_nd_action(flow, base, odp_actions, wc, use_masked);
5668
5669 case ETH_TYPE_ARP:
5670 return commit_set_arp_action(flow, base, odp_actions, wc);
5671 }
5672
5673 return 0;
5674 }
5675
5676 /* TCP, UDP, and SCTP keys have the same layout. */
5677 BUILD_ASSERT_DECL(sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_udp) &&
5678 sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_sctp));
5679
5680 static void
5681 get_tp_key(const struct flow *flow, union ovs_key_tp *tp)
5682 {
5683 tp->tcp.tcp_src = flow->tp_src;
5684 tp->tcp.tcp_dst = flow->tp_dst;
5685 }
5686
5687 static void
5688 put_tp_key(const union ovs_key_tp *tp, struct flow *flow)
5689 {
5690 flow->tp_src = tp->tcp.tcp_src;
5691 flow->tp_dst = tp->tcp.tcp_dst;
5692 }
5693
5694 static void
5695 commit_set_port_action(const struct flow *flow, struct flow *base_flow,
5696 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5697 bool use_masked)
5698 {
5699 enum ovs_key_attr key_type;
5700 union ovs_key_tp key, mask, base;
5701
5702 /* Check if 'flow' really has an L3 header. */
5703 if (!flow->nw_proto) {
5704 return;
5705 }
5706
5707 if (!is_ip_any(base_flow)) {
5708 return;
5709 }
5710
5711 if (flow->nw_proto == IPPROTO_TCP) {
5712 key_type = OVS_KEY_ATTR_TCP;
5713 } else if (flow->nw_proto == IPPROTO_UDP) {
5714 key_type = OVS_KEY_ATTR_UDP;
5715 } else if (flow->nw_proto == IPPROTO_SCTP) {
5716 key_type = OVS_KEY_ATTR_SCTP;
5717 } else {
5718 return;
5719 }
5720
5721 get_tp_key(flow, &key);
5722 get_tp_key(base_flow, &base);
5723 get_tp_key(&wc->masks, &mask);
5724
5725 if (commit(key_type, use_masked, &key, &base, &mask, sizeof key,
5726 odp_actions)) {
5727 put_tp_key(&base, base_flow);
5728 put_tp_key(&mask, &wc->masks);
5729 }
5730 }
5731
5732 static void
5733 commit_set_priority_action(const struct flow *flow, struct flow *base_flow,
5734 struct ofpbuf *odp_actions,
5735 struct flow_wildcards *wc,
5736 bool use_masked)
5737 {
5738 uint32_t key, mask, base;
5739
5740 key = flow->skb_priority;
5741 base = base_flow->skb_priority;
5742 mask = wc->masks.skb_priority;
5743
5744 if (commit(OVS_KEY_ATTR_PRIORITY, use_masked, &key, &base, &mask,
5745 sizeof key, odp_actions)) {
5746 base_flow->skb_priority = base;
5747 wc->masks.skb_priority = mask;
5748 }
5749 }
5750
5751 static void
5752 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base_flow,
5753 struct ofpbuf *odp_actions,
5754 struct flow_wildcards *wc,
5755 bool use_masked)
5756 {
5757 uint32_t key, mask, base;
5758
5759 key = flow->pkt_mark;
5760 base = base_flow->pkt_mark;
5761 mask = wc->masks.pkt_mark;
5762
5763 if (commit(OVS_KEY_ATTR_SKB_MARK, use_masked, &key, &base, &mask,
5764 sizeof key, odp_actions)) {
5765 base_flow->pkt_mark = base;
5766 wc->masks.pkt_mark = mask;
5767 }
5768 }
5769
5770 /* If any of the flow key data that ODP actions can modify are different in
5771 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
5772 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
5773 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
5774 * in addition to this function if needed. Sets fields in 'wc' that are
5775 * used as part of the action.
5776 *
5777 * Returns a reason to force processing the flow's packets into the userspace
5778 * slow path, if there is one, otherwise 0. */
5779 enum slow_path_reason
5780 commit_odp_actions(const struct flow *flow, struct flow *base,
5781 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5782 bool use_masked)
5783 {
5784 enum slow_path_reason slow1, slow2;
5785
5786 commit_set_ether_addr_action(flow, base, odp_actions, wc, use_masked);
5787 slow1 = commit_set_nw_action(flow, base, odp_actions, wc, use_masked);
5788 commit_set_port_action(flow, base, odp_actions, wc, use_masked);
5789 slow2 = commit_set_icmp_action(flow, base, odp_actions, wc);
5790 commit_mpls_action(flow, base, odp_actions);
5791 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
5792 commit_set_priority_action(flow, base, odp_actions, wc, use_masked);
5793 commit_set_pkt_mark_action(flow, base, odp_actions, wc, use_masked);
5794
5795 return slow1 ? slow1 : slow2;
5796 }
openvswitch packages for PVE