2 * Copyright (c) 2009, 2010, 2011 Nicira Networks.
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:
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #include <arpa/inet.h>
22 #include <netinet/in.h>
23 #include <netinet/icmp6.h>
26 #include "byte-order.h"
28 #include "dynamic-string.h"
32 #include "openvswitch/tunnel.h"
38 VLOG_DEFINE_THIS_MODULE(odp_util);
40 /* The interface between userspace and kernel uses an "OVS_*" prefix.
41 * Since this is fairly non-specific for the OVS userspace components,
42 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
43 * interactions with the datapath.
46 static void format_odp_key_attr(const struct nlattr *a, struct ds *ds);
48 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
51 * - For an action whose argument has a fixed length, returned that
52 * nonnegative length in bytes.
54 * - For an action with a variable-length argument, returns -2.
56 * - For an invalid 'type', returns -1. */
58 odp_action_len(uint16_t type)
60 if (type > OVS_ACTION_ATTR_MAX) {
64 switch ((enum ovs_action_attr) type) {
65 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
66 case OVS_ACTION_ATTR_USERSPACE: return -2;
67 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
68 case OVS_ACTION_ATTR_POP_VLAN: return 0;
69 case OVS_ACTION_ATTR_SET: return -2;
70 case OVS_ACTION_ATTR_SAMPLE: return -2;
72 case OVS_ACTION_ATTR_UNSPEC:
73 case __OVS_ACTION_ATTR_MAX:
81 ovs_key_attr_to_string(enum ovs_key_attr attr)
83 static char unknown_attr[3 + INT_STRLEN(unsigned int) + 1];
86 case OVS_KEY_ATTR_UNSPEC: return "unspec";
87 case OVS_KEY_ATTR_ENCAP: return "encap";
88 case OVS_KEY_ATTR_PRIORITY: return "priority";
89 case OVS_KEY_ATTR_TUN_ID: return "tun_id";
90 case OVS_KEY_ATTR_IN_PORT: return "in_port";
91 case OVS_KEY_ATTR_ETHERNET: return "eth";
92 case OVS_KEY_ATTR_VLAN: return "vlan";
93 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
94 case OVS_KEY_ATTR_IPV4: return "ipv4";
95 case OVS_KEY_ATTR_IPV6: return "ipv6";
96 case OVS_KEY_ATTR_TCP: return "tcp";
97 case OVS_KEY_ATTR_UDP: return "udp";
98 case OVS_KEY_ATTR_ICMP: return "icmp";
99 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
100 case OVS_KEY_ATTR_ARP: return "arp";
101 case OVS_KEY_ATTR_ND: return "nd";
103 case __OVS_KEY_ATTR_MAX:
105 snprintf(unknown_attr, sizeof unknown_attr, "key%u",
106 (unsigned int) attr);
112 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
114 size_t len = nl_attr_get_size(a);
116 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
118 const uint8_t *unspec;
121 unspec = nl_attr_get(a);
122 for (i = 0; i < len; i++) {
123 ds_put_char(ds, i ? ' ': '(');
124 ds_put_format(ds, "%02x", unspec[i]);
126 ds_put_char(ds, ')');
131 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
133 static const struct nl_policy ovs_sample_policy[] = {
134 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
135 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
137 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
139 const struct nlattr *nla_acts;
142 ds_put_cstr(ds, "sample");
144 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
145 ds_put_cstr(ds, "(error)");
149 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
152 ds_put_format(ds, "(sample=%.1f%%,", percentage);
154 ds_put_cstr(ds, "actions(");
155 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
156 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
157 format_odp_actions(ds, nla_acts, len);
158 ds_put_format(ds, "))");
162 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
164 static const struct nl_policy ovs_userspace_policy[] = {
165 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
166 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_U64, .optional = true },
168 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
170 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
171 ds_put_cstr(ds, "userspace(error)");
175 ds_put_format(ds, "userspace(pid=%"PRIu32,
176 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
178 if (a[OVS_USERSPACE_ATTR_USERDATA]) {
179 uint64_t userdata = nl_attr_get_u64(a[OVS_USERSPACE_ATTR_USERDATA]);
180 struct user_action_cookie cookie;
182 memcpy(&cookie, &userdata, sizeof cookie);
184 if (cookie.type == USER_ACTION_COOKIE_CONTROLLER) {
185 ds_put_format(ds, ",controller,length=%"PRIu32,
187 } else if (cookie.type == USER_ACTION_COOKIE_SFLOW) {
188 ds_put_format(ds, ",sFlow,n_output=%"PRIu8","
189 "vid=%"PRIu16",pcp=%"PRIu8",ifindex=%"PRIu32,
190 cookie.n_output, vlan_tci_to_vid(cookie.vlan_tci),
191 vlan_tci_to_pcp(cookie.vlan_tci), cookie.data);
193 ds_put_format(ds, ",userdata=0x%"PRIx64, userdata);
197 ds_put_char(ds, ')');
201 format_odp_action(struct ds *ds, const struct nlattr *a)
204 enum ovs_action_attr type = nl_attr_type(a);
205 const struct ovs_action_push_vlan *vlan;
207 expected_len = odp_action_len(nl_attr_type(a));
208 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
209 ds_put_format(ds, "bad length %zu, expected %d for: ",
210 nl_attr_get_size(a), expected_len);
211 format_generic_odp_action(ds, a);
216 case OVS_ACTION_ATTR_OUTPUT:
217 ds_put_format(ds, "%"PRIu16, nl_attr_get_u32(a));
219 case OVS_ACTION_ATTR_USERSPACE:
220 format_odp_userspace_action(ds, a);
222 case OVS_ACTION_ATTR_SET:
223 ds_put_cstr(ds, "set(");
224 format_odp_key_attr(nl_attr_get(a), ds);
225 ds_put_cstr(ds, ")");
227 case OVS_ACTION_ATTR_PUSH_VLAN:
228 vlan = nl_attr_get(a);
229 ds_put_cstr(ds, "push_vlan(");
230 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
231 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
233 ds_put_format(ds, "vid=%"PRIu16",pcp=%d)",
234 vlan_tci_to_vid(vlan->vlan_tci),
235 vlan_tci_to_pcp(vlan->vlan_tci));
237 case OVS_ACTION_ATTR_POP_VLAN:
238 ds_put_cstr(ds, "pop_vlan");
240 case OVS_ACTION_ATTR_SAMPLE:
241 format_odp_sample_action(ds, a);
243 case OVS_ACTION_ATTR_UNSPEC:
244 case __OVS_ACTION_ATTR_MAX:
246 format_generic_odp_action(ds, a);
252 format_odp_actions(struct ds *ds, const struct nlattr *actions,
256 const struct nlattr *a;
259 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
261 ds_put_char(ds, ',');
263 format_odp_action(ds, a);
266 if (left == actions_len) {
267 ds_put_cstr(ds, "<empty>");
269 ds_put_format(ds, ",***%u leftover bytes***", left);
272 ds_put_cstr(ds, "drop");
276 /* Returns the correct length of the payload for a flow key attribute of the
277 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
278 * is variable length. */
280 odp_flow_key_attr_len(uint16_t type)
282 if (type > OVS_KEY_ATTR_MAX) {
286 switch ((enum ovs_key_attr) type) {
287 case OVS_KEY_ATTR_ENCAP: return -2;
288 case OVS_KEY_ATTR_PRIORITY: return 4;
289 case OVS_KEY_ATTR_TUN_ID: return 8;
290 case OVS_KEY_ATTR_IN_PORT: return 4;
291 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
292 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
293 case OVS_KEY_ATTR_ETHERTYPE: return 2;
294 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
295 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
296 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
297 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
298 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
299 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
300 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
301 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
303 case OVS_KEY_ATTR_UNSPEC:
304 case __OVS_KEY_ATTR_MAX:
312 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
314 size_t len = nl_attr_get_size(a);
316 const uint8_t *unspec;
319 unspec = nl_attr_get(a);
320 for (i = 0; i < len; i++) {
321 ds_put_char(ds, i ? ' ': '(');
322 ds_put_format(ds, "%02x", unspec[i]);
324 ds_put_char(ds, ')');
329 ovs_frag_type_to_string(enum ovs_frag_type type)
332 case OVS_FRAG_TYPE_NONE:
334 case OVS_FRAG_TYPE_FIRST:
336 case OVS_FRAG_TYPE_LATER:
338 case __OVS_FRAG_TYPE_MAX:
345 format_odp_key_attr(const struct nlattr *a, struct ds *ds)
347 const struct ovs_key_ethernet *eth_key;
348 const struct ovs_key_ipv4 *ipv4_key;
349 const struct ovs_key_ipv6 *ipv6_key;
350 const struct ovs_key_tcp *tcp_key;
351 const struct ovs_key_udp *udp_key;
352 const struct ovs_key_icmp *icmp_key;
353 const struct ovs_key_icmpv6 *icmpv6_key;
354 const struct ovs_key_arp *arp_key;
355 const struct ovs_key_nd *nd_key;
356 enum ovs_key_attr attr = nl_attr_type(a);
359 ds_put_cstr(ds, ovs_key_attr_to_string(attr));
360 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
361 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
362 ds_put_format(ds, "(bad length %zu, expected %d)",
364 odp_flow_key_attr_len(nl_attr_type(a)));
365 format_generic_odp_key(a, ds);
370 case OVS_KEY_ATTR_ENCAP:
371 ds_put_cstr(ds, "(");
372 if (nl_attr_get_size(a)) {
373 odp_flow_key_format(nl_attr_get(a), nl_attr_get_size(a), ds);
375 ds_put_char(ds, ')');
378 case OVS_KEY_ATTR_PRIORITY:
379 ds_put_format(ds, "(%"PRIu32")", nl_attr_get_u32(a));
382 case OVS_KEY_ATTR_TUN_ID:
383 ds_put_format(ds, "(%#"PRIx64")", ntohll(nl_attr_get_be64(a)));
386 case OVS_KEY_ATTR_IN_PORT:
387 ds_put_format(ds, "(%"PRIu32")", nl_attr_get_u32(a));
390 case OVS_KEY_ATTR_ETHERNET:
391 eth_key = nl_attr_get(a);
392 ds_put_format(ds, "(src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT")",
393 ETH_ADDR_ARGS(eth_key->eth_src),
394 ETH_ADDR_ARGS(eth_key->eth_dst));
397 case OVS_KEY_ATTR_VLAN:
398 ds_put_format(ds, "(vid=%"PRIu16",pcp=%d)",
399 vlan_tci_to_vid(nl_attr_get_be16(a)),
400 vlan_tci_to_pcp(nl_attr_get_be16(a)));
403 case OVS_KEY_ATTR_ETHERTYPE:
404 ds_put_format(ds, "(0x%04"PRIx16")",
405 ntohs(nl_attr_get_be16(a)));
408 case OVS_KEY_ATTR_IPV4:
409 ipv4_key = nl_attr_get(a);
410 ds_put_format(ds, "(src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
411 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s)",
412 IP_ARGS(&ipv4_key->ipv4_src),
413 IP_ARGS(&ipv4_key->ipv4_dst),
414 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
416 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
419 case OVS_KEY_ATTR_IPV6: {
420 char src_str[INET6_ADDRSTRLEN];
421 char dst_str[INET6_ADDRSTRLEN];
423 ipv6_key = nl_attr_get(a);
424 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
425 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
427 ds_put_format(ds, "(src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
428 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s)",
429 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
430 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
431 ipv6_key->ipv6_hlimit,
432 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
436 case OVS_KEY_ATTR_TCP:
437 tcp_key = nl_attr_get(a);
438 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
439 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
442 case OVS_KEY_ATTR_UDP:
443 udp_key = nl_attr_get(a);
444 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
445 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
448 case OVS_KEY_ATTR_ICMP:
449 icmp_key = nl_attr_get(a);
450 ds_put_format(ds, "(type=%"PRIu8",code=%"PRIu8")",
451 icmp_key->icmp_type, icmp_key->icmp_code);
454 case OVS_KEY_ATTR_ICMPV6:
455 icmpv6_key = nl_attr_get(a);
456 ds_put_format(ds, "(type=%"PRIu8",code=%"PRIu8")",
457 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
460 case OVS_KEY_ATTR_ARP:
461 arp_key = nl_attr_get(a);
462 ds_put_format(ds, "(sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
463 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT")",
464 IP_ARGS(&arp_key->arp_sip), IP_ARGS(&arp_key->arp_tip),
465 ntohs(arp_key->arp_op), ETH_ADDR_ARGS(arp_key->arp_sha),
466 ETH_ADDR_ARGS(arp_key->arp_tha));
469 case OVS_KEY_ATTR_ND: {
470 char target[INET6_ADDRSTRLEN];
472 nd_key = nl_attr_get(a);
473 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
475 ds_put_format(ds, "(target=%s", target);
476 if (!eth_addr_is_zero(nd_key->nd_sll)) {
477 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
478 ETH_ADDR_ARGS(nd_key->nd_sll));
480 if (!eth_addr_is_zero(nd_key->nd_tll)) {
481 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
482 ETH_ADDR_ARGS(nd_key->nd_tll));
484 ds_put_char(ds, ')');
488 case OVS_KEY_ATTR_UNSPEC:
489 case __OVS_KEY_ATTR_MAX:
491 format_generic_odp_key(a, ds);
496 /* Appends to 'ds' a string representation of the 'key_len' bytes of
497 * OVS_KEY_ATTR_* attributes in 'key'. */
499 odp_flow_key_format(const struct nlattr *key, size_t key_len, struct ds *ds)
502 const struct nlattr *a;
505 NL_ATTR_FOR_EACH (a, left, key, key_len) {
507 ds_put_char(ds, ',');
509 format_odp_key_attr(a, ds);
512 if (left == key_len) {
513 ds_put_cstr(ds, "<empty>");
515 ds_put_format(ds, ",***%u leftover bytes***", left);
518 ds_put_cstr(ds, "<empty>");
523 put_nd_key(int n, const char *nd_target_s,
524 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
526 struct ovs_key_nd nd_key;
528 memset(&nd_key, 0, sizeof nd_key);
529 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
533 memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
536 memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
538 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
543 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
545 if (!strcasecmp(s, "no")) {
546 *type = OVS_FRAG_TYPE_NONE;
547 } else if (!strcasecmp(s, "first")) {
548 *type = OVS_FRAG_TYPE_FIRST;
549 } else if (!strcasecmp(s, "later")) {
550 *type = OVS_FRAG_TYPE_LATER;
558 parse_odp_key_attr(const char *s, struct ofpbuf *key)
560 /* Many of the sscanf calls in this function use oversized destination
561 * fields because some sscanf() implementations truncate the range of %i
562 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
563 * value of 0x7fff. The other alternatives are to allow only a single
564 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
567 * The tun_id parser has to use an alternative approach because there is no
568 * type larger than 64 bits. */
571 unsigned long long int priority;
574 if (sscanf(s, "priority(%lli)%n", &priority, &n) > 0 && n > 0) {
575 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
584 if (sscanf(s, "tun_id(%31[x0123456789abcdefABCDEF])%n",
585 tun_id_s, &n) > 0 && n > 0) {
586 uint64_t tun_id = strtoull(tun_id_s, NULL, 0);
587 nl_msg_put_be64(key, OVS_KEY_ATTR_TUN_ID, htonll(tun_id));
593 unsigned long long int in_port;
596 if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
597 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
603 struct ovs_key_ethernet eth_key;
607 "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
608 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
609 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
610 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
611 ð_key, sizeof eth_key);
621 if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n", &vid, &pcp, &n) > 0
623 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
624 htons((vid << VLAN_VID_SHIFT) |
625 (pcp << VLAN_PCP_SHIFT)));
634 if (sscanf(s, "eth_type(%i)%n", ð_type, &n) > 0 && n > 0) {
635 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
647 enum ovs_frag_type ipv4_frag;
650 if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
651 "proto=%i,tos=%i,ttl=%i,frag=%7[a-z])%n",
652 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_dst),
653 &ipv4_proto, &ipv4_tos, &ipv4_ttl, frag, &n) > 0
655 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
656 struct ovs_key_ipv4 ipv4_key;
658 ipv4_key.ipv4_src = ipv4_src;
659 ipv4_key.ipv4_dst = ipv4_dst;
660 ipv4_key.ipv4_proto = ipv4_proto;
661 ipv4_key.ipv4_tos = ipv4_tos;
662 ipv4_key.ipv4_ttl = ipv4_ttl;
663 ipv4_key.ipv4_frag = ipv4_frag;
664 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
665 &ipv4_key, sizeof ipv4_key);
671 char ipv6_src_s[IPV6_SCAN_LEN + 1];
672 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
678 enum ovs_frag_type ipv6_frag;
681 if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
682 "label=%i,proto=%i,tclass=%i,hlimit=%i,frag=%7[a-z])%n",
683 ipv6_src_s, ipv6_dst_s, &ipv6_label,
684 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) > 0
686 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
687 struct ovs_key_ipv6 ipv6_key;
689 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
690 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
693 ipv6_key.ipv6_label = htonl(ipv6_label);
694 ipv6_key.ipv6_proto = ipv6_proto;
695 ipv6_key.ipv6_tclass = ipv6_tclass;
696 ipv6_key.ipv6_hlimit = ipv6_hlimit;
697 ipv6_key.ipv6_frag = ipv6_frag;
698 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
699 &ipv6_key, sizeof ipv6_key);
709 if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
711 struct ovs_key_tcp tcp_key;
713 tcp_key.tcp_src = htons(tcp_src);
714 tcp_key.tcp_dst = htons(tcp_dst);
715 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
725 if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
727 struct ovs_key_udp udp_key;
729 udp_key.udp_src = htons(udp_src);
730 udp_key.udp_dst = htons(udp_dst);
731 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
741 if (sscanf(s, "icmp(type=%i,code=%i)%n",
742 &icmp_type, &icmp_code, &n) > 0
744 struct ovs_key_icmp icmp_key;
746 icmp_key.icmp_type = icmp_type;
747 icmp_key.icmp_code = icmp_code;
748 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
749 &icmp_key, sizeof icmp_key);
755 struct ovs_key_icmpv6 icmpv6_key;
758 if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
759 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
761 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
762 &icmpv6_key, sizeof icmpv6_key);
771 uint8_t arp_sha[ETH_ADDR_LEN];
772 uint8_t arp_tha[ETH_ADDR_LEN];
775 if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
776 "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
777 IP_SCAN_ARGS(&arp_sip),
778 IP_SCAN_ARGS(&arp_tip),
780 ETH_ADDR_SCAN_ARGS(arp_sha),
781 ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
782 struct ovs_key_arp arp_key;
784 memset(&arp_key, 0, sizeof arp_key);
785 arp_key.arp_sip = arp_sip;
786 arp_key.arp_tip = arp_tip;
787 arp_key.arp_op = htons(arp_op);
788 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
789 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
790 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
796 char nd_target_s[IPV6_SCAN_LEN + 1];
797 uint8_t nd_sll[ETH_ADDR_LEN];
798 uint8_t nd_tll[ETH_ADDR_LEN];
801 if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
802 nd_target_s, &n) > 0 && n > 0) {
803 return put_nd_key(n, nd_target_s, NULL, NULL, key);
805 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
806 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
808 return put_nd_key(n, nd_target_s, nd_sll, NULL, key);
810 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
811 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
813 return put_nd_key(n, nd_target_s, NULL, nd_tll, key);
815 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
816 "tll="ETH_ADDR_SCAN_FMT")%n",
817 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
818 ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
820 return put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
824 if (!strncmp(s, "encap(", 6)) {
825 const char *start = s;
828 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
834 s += strspn(s, ", \t\r\n");
837 } else if (*s == ')') {
841 retval = parse_odp_key_attr(s, key);
849 nl_msg_end_nested(key, encap);
857 /* Parses the string representation of a datapath flow key, in the
858 * format output by odp_flow_key_format(). Returns 0 if successful,
859 * otherwise a positive errno value. On success, the flow key is
860 * appended to 'key' as a series of Netlink attributes. On failure, no
861 * data is appended to 'key'. Either way, 'key''s data might be
864 * On success, the attributes appended to 'key' are individually syntactically
865 * valid, but they may not be valid as a sequence. 'key' might, for example,
866 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
868 odp_flow_key_from_string(const char *s, struct ofpbuf *key)
870 const size_t old_size = key->size;
874 s += strspn(s, ", \t\r\n");
879 retval = parse_odp_key_attr(s, key);
881 key->size = old_size;
891 ovs_to_odp_frag(uint8_t ovs_frag)
893 return (ovs_frag & FLOW_NW_FRAG_LATER ? OVS_FRAG_TYPE_LATER
894 : ovs_frag & FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
895 : OVS_FRAG_TYPE_NONE);
898 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'. */
900 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow)
902 struct ovs_key_ethernet *eth_key;
905 if (flow->priority) {
906 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, flow->priority);
909 if (flow->tun_id != htonll(0)) {
910 nl_msg_put_be64(buf, OVS_KEY_ATTR_TUN_ID, flow->tun_id);
913 if (flow->in_port != OFPP_NONE) {
914 nl_msg_put_u32(buf, OVS_KEY_ATTR_IN_PORT,
915 ofp_port_to_odp_port(flow->in_port));
918 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
920 memcpy(eth_key->eth_src, flow->dl_src, ETH_ADDR_LEN);
921 memcpy(eth_key->eth_dst, flow->dl_dst, ETH_ADDR_LEN);
923 if (flow->vlan_tci != htons(0)) {
924 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
925 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN,
926 flow->vlan_tci & ~htons(VLAN_CFI));
927 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
932 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
936 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, flow->dl_type);
938 if (flow->dl_type == htons(ETH_TYPE_IP)) {
939 struct ovs_key_ipv4 *ipv4_key;
941 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
943 ipv4_key->ipv4_src = flow->nw_src;
944 ipv4_key->ipv4_dst = flow->nw_dst;
945 ipv4_key->ipv4_proto = flow->nw_proto;
946 ipv4_key->ipv4_tos = flow->nw_tos;
947 ipv4_key->ipv4_ttl = flow->nw_ttl;
948 ipv4_key->ipv4_frag = ovs_to_odp_frag(flow->nw_frag);
949 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
950 struct ovs_key_ipv6 *ipv6_key;
952 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
954 memcpy(ipv6_key->ipv6_src, &flow->ipv6_src, sizeof ipv6_key->ipv6_src);
955 memcpy(ipv6_key->ipv6_dst, &flow->ipv6_dst, sizeof ipv6_key->ipv6_dst);
956 ipv6_key->ipv6_label = flow->ipv6_label;
957 ipv6_key->ipv6_proto = flow->nw_proto;
958 ipv6_key->ipv6_tclass = flow->nw_tos;
959 ipv6_key->ipv6_hlimit = flow->nw_ttl;
960 ipv6_key->ipv6_frag = ovs_to_odp_frag(flow->nw_frag);
961 } else if (flow->dl_type == htons(ETH_TYPE_ARP)) {
962 struct ovs_key_arp *arp_key;
964 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
966 memset(arp_key, 0, sizeof *arp_key);
967 arp_key->arp_sip = flow->nw_src;
968 arp_key->arp_tip = flow->nw_dst;
969 arp_key->arp_op = htons(flow->nw_proto);
970 memcpy(arp_key->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
971 memcpy(arp_key->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
974 if ((flow->dl_type == htons(ETH_TYPE_IP)
975 || flow->dl_type == htons(ETH_TYPE_IPV6))
976 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
978 if (flow->nw_proto == IPPROTO_TCP) {
979 struct ovs_key_tcp *tcp_key;
981 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
983 tcp_key->tcp_src = flow->tp_src;
984 tcp_key->tcp_dst = flow->tp_dst;
985 } else if (flow->nw_proto == IPPROTO_UDP) {
986 struct ovs_key_udp *udp_key;
988 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
990 udp_key->udp_src = flow->tp_src;
991 udp_key->udp_dst = flow->tp_dst;
992 } else if (flow->dl_type == htons(ETH_TYPE_IP)
993 && flow->nw_proto == IPPROTO_ICMP) {
994 struct ovs_key_icmp *icmp_key;
996 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
998 icmp_key->icmp_type = ntohs(flow->tp_src);
999 icmp_key->icmp_code = ntohs(flow->tp_dst);
1000 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
1001 && flow->nw_proto == IPPROTO_ICMPV6) {
1002 struct ovs_key_icmpv6 *icmpv6_key;
1004 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
1005 sizeof *icmpv6_key);
1006 icmpv6_key->icmpv6_type = ntohs(flow->tp_src);
1007 icmpv6_key->icmpv6_code = ntohs(flow->tp_dst);
1009 if (icmpv6_key->icmpv6_type == ND_NEIGHBOR_SOLICIT
1010 || icmpv6_key->icmpv6_type == ND_NEIGHBOR_ADVERT) {
1011 struct ovs_key_nd *nd_key;
1013 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
1015 memcpy(nd_key->nd_target, &flow->nd_target,
1016 sizeof nd_key->nd_target);
1017 memcpy(nd_key->nd_sll, flow->arp_sha, ETH_ADDR_LEN);
1018 memcpy(nd_key->nd_tll, flow->arp_tha, ETH_ADDR_LEN);
1025 nl_msg_end_nested(buf, encap);
1030 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
1032 const struct nlattr *key, size_t key_len)
1037 if (VLOG_DROP_WARN(rl)) {
1042 ds_put_format(&s, "%s:", title);
1043 for (i = 0; i < 32; i++) {
1044 if (attrs & (1u << i)) {
1045 ds_put_format(&s, " %s", ovs_key_attr_to_string(i));
1049 ds_put_cstr(&s, ": ");
1050 odp_flow_key_format(key, key_len, &s);
1052 VLOG_WARN("%s", ds_cstr(&s));
1057 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
1059 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1061 if (odp_frag > OVS_FRAG_TYPE_LATER) {
1062 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key",
1067 if (odp_frag != OVS_FRAG_TYPE_NONE) {
1068 flow->nw_frag |= FLOW_NW_FRAG_ANY;
1069 if (odp_frag == OVS_FRAG_TYPE_LATER) {
1070 flow->nw_frag |= FLOW_NW_FRAG_LATER;
1077 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
1078 const struct nlattr *attrs[], uint64_t *present_attrsp)
1080 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1081 const struct nlattr *nla;
1082 uint64_t present_attrs;
1086 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
1087 uint16_t type = nl_attr_type(nla);
1088 size_t len = nl_attr_get_size(nla);
1089 int expected_len = odp_flow_key_attr_len(type);
1091 if (len != expected_len && expected_len != -2) {
1092 if (expected_len == -1) {
1093 VLOG_ERR_RL(&rl, "unknown attribute %"PRIu16" in flow key",
1096 VLOG_ERR_RL(&rl, "attribute %s has length %zu but should have "
1097 "length %d", ovs_key_attr_to_string(type),
1101 } else if (present_attrs & (UINT64_C(1) << type)) {
1102 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
1103 ovs_key_attr_to_string(type));
1107 present_attrs |= UINT64_C(1) << type;
1111 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
1115 *present_attrsp = present_attrs;
1120 check_expectations(uint64_t present_attrs, uint64_t expected_attrs,
1121 const struct nlattr *key, size_t key_len)
1123 uint64_t missing_attrs;
1124 uint64_t extra_attrs;
1126 missing_attrs = expected_attrs & ~present_attrs;
1127 if (missing_attrs) {
1128 static struct vlog_rate_limit miss_rl = VLOG_RATE_LIMIT_INIT(10, 10);
1129 log_odp_key_attributes(&miss_rl, "expected but not present",
1130 missing_attrs, key, key_len);
1134 extra_attrs = present_attrs & ~expected_attrs;
1136 static struct vlog_rate_limit extra_rl = VLOG_RATE_LIMIT_INIT(10, 10);
1137 log_odp_key_attributes(&extra_rl, "present but not expected",
1138 extra_attrs, key, key_len);
1145 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
1146 * structure in 'flow'. Returns 0 if successful, otherwise EINVAL. */
1148 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
1151 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1152 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
1153 uint64_t expected_attrs;
1154 uint64_t present_attrs;
1157 memset(flow, 0, sizeof *flow);
1159 error = parse_flow_nlattrs(key, key_len, attrs, &present_attrs);
1166 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
1167 flow->priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
1168 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
1171 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUN_ID)) {
1172 flow->tun_id = nl_attr_get_be64(attrs[OVS_KEY_ATTR_TUN_ID]);
1173 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUN_ID;
1176 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
1177 uint32_t in_port = nl_attr_get_u32(attrs[OVS_KEY_ATTR_IN_PORT]);
1178 if (in_port >= UINT16_MAX || in_port >= OFPP_MAX) {
1179 VLOG_ERR_RL(&rl, "in_port %"PRIu32" out of supported range",
1183 flow->in_port = odp_port_to_ofp_port(in_port);
1184 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
1186 flow->in_port = OFPP_NONE;
1189 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
1190 const struct ovs_key_ethernet *eth_key;
1192 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
1193 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
1194 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
1196 VLOG_ERR_RL(&rl, "missing Ethernet attribute in flow key");
1199 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
1201 if ((present_attrs & ~expected_attrs)
1202 == ((UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE) |
1203 (UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
1204 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))
1205 && (nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE])
1206 == htons(ETH_TYPE_VLAN))) {
1207 const struct nlattr *encap = attrs[OVS_KEY_ATTR_ENCAP];
1208 const struct nlattr *vlan = attrs[OVS_KEY_ATTR_VLAN];
1210 flow->vlan_tci = nl_attr_get_be16(vlan);
1211 if (flow->vlan_tci & htons(VLAN_CFI)) {
1214 flow->vlan_tci |= htons(VLAN_CFI);
1216 error = parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
1217 attrs, &present_attrs);
1224 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
1225 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
1226 if (ntohs(flow->dl_type) < 1536) {
1227 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
1228 ntohs(flow->dl_type));
1231 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
1233 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
1236 if (flow->dl_type == htons(ETH_TYPE_IP)) {
1237 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
1238 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
1239 const struct ovs_key_ipv4 *ipv4_key;
1241 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
1242 flow->nw_src = ipv4_key->ipv4_src;
1243 flow->nw_dst = ipv4_key->ipv4_dst;
1244 flow->nw_proto = ipv4_key->ipv4_proto;
1245 flow->nw_tos = ipv4_key->ipv4_tos;
1246 flow->nw_ttl = ipv4_key->ipv4_ttl;
1247 if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
1251 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
1252 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
1253 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
1254 const struct ovs_key_ipv6 *ipv6_key;
1256 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
1257 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
1258 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
1259 flow->ipv6_label = ipv6_key->ipv6_label;
1260 flow->nw_proto = ipv6_key->ipv6_proto;
1261 flow->nw_tos = ipv6_key->ipv6_tclass;
1262 flow->nw_ttl = ipv6_key->ipv6_hlimit;
1263 if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
1267 } else if (flow->dl_type == htons(ETH_TYPE_ARP)) {
1268 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
1269 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
1270 const struct ovs_key_arp *arp_key;
1272 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
1273 flow->nw_src = arp_key->arp_sip;
1274 flow->nw_dst = arp_key->arp_tip;
1275 if (arp_key->arp_op & htons(0xff00)) {
1276 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
1277 "key", ntohs(arp_key->arp_op));
1280 flow->nw_proto = ntohs(arp_key->arp_op);
1281 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
1282 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
1286 if (flow->nw_proto == IPPROTO_TCP
1287 && (flow->dl_type == htons(ETH_TYPE_IP) ||
1288 flow->dl_type == htons(ETH_TYPE_IPV6))
1289 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1290 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
1291 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
1292 const struct ovs_key_tcp *tcp_key;
1294 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
1295 flow->tp_src = tcp_key->tcp_src;
1296 flow->tp_dst = tcp_key->tcp_dst;
1298 } else if (flow->nw_proto == IPPROTO_UDP
1299 && (flow->dl_type == htons(ETH_TYPE_IP) ||
1300 flow->dl_type == htons(ETH_TYPE_IPV6))
1301 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1302 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
1303 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
1304 const struct ovs_key_udp *udp_key;
1306 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
1307 flow->tp_src = udp_key->udp_src;
1308 flow->tp_dst = udp_key->udp_dst;
1310 } else if (flow->nw_proto == IPPROTO_ICMP
1311 && flow->dl_type == htons(ETH_TYPE_IP)
1312 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1313 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
1314 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
1315 const struct ovs_key_icmp *icmp_key;
1317 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
1318 flow->tp_src = htons(icmp_key->icmp_type);
1319 flow->tp_dst = htons(icmp_key->icmp_code);
1321 } else if (flow->nw_proto == IPPROTO_ICMPV6
1322 && flow->dl_type == htons(ETH_TYPE_IPV6)
1323 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1324 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
1325 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
1326 const struct ovs_key_icmpv6 *icmpv6_key;
1328 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
1329 flow->tp_src = htons(icmpv6_key->icmpv6_type);
1330 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
1332 if (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
1333 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) {
1334 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
1335 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
1336 const struct ovs_key_nd *nd_key;
1338 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
1339 memcpy(&flow->nd_target, nd_key->nd_target,
1340 sizeof flow->nd_target);
1341 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
1342 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
1348 return check_expectations(present_attrs, expected_attrs, key, key_len);