2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
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.
18 #include <arpa/inet.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
27 #include "byte-order.h"
30 #include "dynamic-string.h"
40 VLOG_DEFINE_THIS_MODULE(odp_util);
42 /* The interface between userspace and kernel uses an "OVS_*" prefix.
43 * Since this is fairly non-specific for the OVS userspace components,
44 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
45 * interactions with the datapath.
48 /* The set of characters that may separate one action or one key attribute
50 static const char *delimiters = ", \t\r\n";
52 static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
53 struct ofpbuf *, struct ofpbuf *);
54 static void format_odp_key_attr(const struct nlattr *a,
55 const struct nlattr *ma,
56 const struct hmap *portno_names, struct ds *ds,
59 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
62 * - For an action whose argument has a fixed length, returned that
63 * nonnegative length in bytes.
65 * - For an action with a variable-length argument, returns -2.
67 * - For an invalid 'type', returns -1. */
69 odp_action_len(uint16_t type)
71 if (type > OVS_ACTION_ATTR_MAX) {
75 switch ((enum ovs_action_attr) type) {
76 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
77 case OVS_ACTION_ATTR_USERSPACE: return -2;
78 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
79 case OVS_ACTION_ATTR_POP_VLAN: return 0;
80 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
81 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
82 case OVS_ACTION_ATTR_SET: return -2;
83 case OVS_ACTION_ATTR_SAMPLE: return -2;
85 case OVS_ACTION_ATTR_UNSPEC:
86 case __OVS_ACTION_ATTR_MAX:
93 /* Returns a string form of 'attr'. The return value is either a statically
94 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
95 * should be at least OVS_KEY_ATTR_BUFSIZE. */
96 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
98 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
101 case OVS_KEY_ATTR_UNSPEC: return "unspec";
102 case OVS_KEY_ATTR_ENCAP: return "encap";
103 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
104 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
105 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
106 case OVS_KEY_ATTR_IN_PORT: return "in_port";
107 case OVS_KEY_ATTR_ETHERNET: return "eth";
108 case OVS_KEY_ATTR_VLAN: return "vlan";
109 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
110 case OVS_KEY_ATTR_IPV4: return "ipv4";
111 case OVS_KEY_ATTR_IPV6: return "ipv6";
112 case OVS_KEY_ATTR_TCP: return "tcp";
113 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
114 case OVS_KEY_ATTR_UDP: return "udp";
115 case OVS_KEY_ATTR_SCTP: return "sctp";
116 case OVS_KEY_ATTR_ICMP: return "icmp";
117 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
118 case OVS_KEY_ATTR_ARP: return "arp";
119 case OVS_KEY_ATTR_ND: return "nd";
120 case OVS_KEY_ATTR_MPLS: return "mpls";
122 case __OVS_KEY_ATTR_MAX:
124 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
130 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
132 size_t len = nl_attr_get_size(a);
134 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
136 const uint8_t *unspec;
139 unspec = nl_attr_get(a);
140 for (i = 0; i < len; i++) {
141 ds_put_char(ds, i ? ' ': '(');
142 ds_put_format(ds, "%02x", unspec[i]);
144 ds_put_char(ds, ')');
149 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
151 static const struct nl_policy ovs_sample_policy[] = {
152 { NL_A_NO_ATTR, 0, 0, false }, /* OVS_SAMPLE_ATTR_UNSPEC */
153 { NL_A_U32, 0, 0, false }, /* OVS_SAMPLE_ATTR_PROBABILITY */
154 { NL_A_NESTED, 0, 0, false }, /* OVS_SAMPLE_ATTR_ACTIONS */
156 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
158 const struct nlattr *nla_acts;
161 ds_put_cstr(ds, "sample");
163 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
164 ds_put_cstr(ds, "(error)");
168 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
171 ds_put_format(ds, "(sample=%.1f%%,", percentage);
173 ds_put_cstr(ds, "actions(");
174 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
175 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
176 format_odp_actions(ds, nla_acts, len);
177 ds_put_format(ds, "))");
181 slow_path_reason_to_string(uint32_t reason)
183 switch ((enum slow_path_reason) reason) {
184 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
193 slow_path_reason_to_explanation(enum slow_path_reason reason)
196 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
205 parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
216 while (s[n] != ')') {
217 unsigned long long int flags;
221 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
222 n += n0 + (s[n + n0] == ',');
227 for (bit = 1; bit; bit <<= 1) {
228 const char *name = bit_to_string(bit);
236 if (!strncmp(s + n, name, len) &&
237 (s[n + len] == ',' || s[n + len] == ')')) {
239 n += len + (s[n + len] == ',');
255 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
257 static const struct nl_policy ovs_userspace_policy[] = {
258 { NL_A_NO_ATTR, 0, 0, false }, /* OVS_USERSPACE_ATTR_UNSPEC */
259 { NL_A_U32, 0, 0, false }, /* OVS_USERSPACE_ATTR_PID */
260 { NL_A_UNSPEC, 0, 0, true }, /* OVS_USERSPACE_ATTR_USERDATA */
262 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
263 const struct nlattr *userdata_attr;
265 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
266 ds_put_cstr(ds, "userspace(error)");
270 ds_put_format(ds, "userspace(pid=%"PRIu32,
271 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
273 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
276 const uint8_t *userdata = nl_attr_get(userdata_attr);
277 size_t userdata_len = nl_attr_get_size(userdata_attr);
278 bool userdata_unspec = true;
279 union user_action_cookie cookie;
281 if (userdata_len >= sizeof cookie.type
282 && userdata_len <= sizeof cookie) {
284 memset(&cookie, 0, sizeof cookie);
285 memcpy(&cookie, userdata, userdata_len);
287 userdata_unspec = false;
289 if (userdata_len == sizeof cookie.sflow
290 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
291 ds_put_format(ds, ",sFlow("
292 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
293 vlan_tci_to_vid(cookie.sflow.vlan_tci),
294 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
295 cookie.sflow.output);
296 } else if (userdata_len == sizeof cookie.slow_path
297 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
298 ds_put_cstr(ds, ",slow_path(");
299 format_flags(ds, slow_path_reason_to_string,
300 cookie.slow_path.reason, ',');
301 ds_put_format(ds, ")");
302 } else if (userdata_len == sizeof cookie.flow_sample
303 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
304 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
305 ",collector_set_id=%"PRIu32
306 ",obs_domain_id=%"PRIu32
307 ",obs_point_id=%"PRIu32")",
308 cookie.flow_sample.probability,
309 cookie.flow_sample.collector_set_id,
310 cookie.flow_sample.obs_domain_id,
311 cookie.flow_sample.obs_point_id);
312 } else if (userdata_len >= sizeof cookie.ipfix
313 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
314 ds_put_format(ds, ",ipfix");
316 userdata_unspec = true;
320 if (userdata_unspec) {
322 ds_put_format(ds, ",userdata(");
323 for (i = 0; i < userdata_len; i++) {
324 ds_put_format(ds, "%02x", userdata[i]);
326 ds_put_char(ds, ')');
330 ds_put_char(ds, ')');
334 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
336 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
337 vlan_tci_to_vid(vlan_tci),
338 vlan_tci_to_pcp(vlan_tci));
339 if (!(vlan_tci & htons(VLAN_CFI))) {
340 ds_put_cstr(ds, ",cfi=0");
345 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
347 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
348 mpls_lse_to_label(mpls_lse),
349 mpls_lse_to_tc(mpls_lse),
350 mpls_lse_to_ttl(mpls_lse),
351 mpls_lse_to_bos(mpls_lse));
355 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
356 const struct ovs_key_mpls *mpls_mask, int n)
359 ovs_be32 key = mpls_key->mpls_lse;
361 if (mpls_mask == NULL) {
362 format_mpls_lse(ds, key);
364 ovs_be32 mask = mpls_mask->mpls_lse;
366 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
367 mpls_lse_to_label(key), mpls_lse_to_label(mask),
368 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
369 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
370 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
375 for (i = 0; i < n; i++) {
376 ds_put_format(ds, "lse%d=%#"PRIx32,
377 i, ntohl(mpls_key[i].mpls_lse));
379 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
381 ds_put_char(ds, ',');
388 format_odp_action(struct ds *ds, const struct nlattr *a)
391 enum ovs_action_attr type = nl_attr_type(a);
392 const struct ovs_action_push_vlan *vlan;
394 expected_len = odp_action_len(nl_attr_type(a));
395 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
396 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
397 nl_attr_get_size(a), expected_len);
398 format_generic_odp_action(ds, a);
403 case OVS_ACTION_ATTR_OUTPUT:
404 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
406 case OVS_ACTION_ATTR_USERSPACE:
407 format_odp_userspace_action(ds, a);
409 case OVS_ACTION_ATTR_SET:
410 ds_put_cstr(ds, "set(");
411 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
412 ds_put_cstr(ds, ")");
414 case OVS_ACTION_ATTR_PUSH_VLAN:
415 vlan = nl_attr_get(a);
416 ds_put_cstr(ds, "push_vlan(");
417 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
418 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
420 format_vlan_tci(ds, vlan->vlan_tci);
421 ds_put_char(ds, ')');
423 case OVS_ACTION_ATTR_POP_VLAN:
424 ds_put_cstr(ds, "pop_vlan");
426 case OVS_ACTION_ATTR_PUSH_MPLS: {
427 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
428 ds_put_cstr(ds, "push_mpls(");
429 format_mpls_lse(ds, mpls->mpls_lse);
430 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
433 case OVS_ACTION_ATTR_POP_MPLS: {
434 ovs_be16 ethertype = nl_attr_get_be16(a);
435 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
438 case OVS_ACTION_ATTR_SAMPLE:
439 format_odp_sample_action(ds, a);
441 case OVS_ACTION_ATTR_UNSPEC:
442 case __OVS_ACTION_ATTR_MAX:
444 format_generic_odp_action(ds, a);
450 format_odp_actions(struct ds *ds, const struct nlattr *actions,
454 const struct nlattr *a;
457 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
459 ds_put_char(ds, ',');
461 format_odp_action(ds, a);
466 if (left == actions_len) {
467 ds_put_cstr(ds, "<empty>");
469 ds_put_format(ds, ",***%u leftover bytes*** (", left);
470 for (i = 0; i < left; i++) {
471 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
473 ds_put_char(ds, ')');
476 ds_put_cstr(ds, "drop");
481 parse_odp_action(const char *s, const struct simap *port_names,
482 struct ofpbuf *actions)
488 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
489 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
495 int len = strcspn(s, delimiters);
496 struct simap_node *node;
498 node = simap_find_len(port_names, s, len);
500 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
508 uint32_t probability;
509 uint32_t collector_set_id;
510 uint32_t obs_domain_id;
511 uint32_t obs_point_id;
515 if (ovs_scan(s, "userspace(pid=%"SCNi32")%n", &pid, &n)) {
516 odp_put_userspace_action(pid, NULL, 0, actions);
518 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",sFlow(vid=%i,"
519 "pcp=%i,output=%"SCNi32"))%n",
520 &pid, &vid, &pcp, &output, &n)) {
521 union user_action_cookie cookie;
524 tci = vid | (pcp << VLAN_PCP_SHIFT);
529 cookie.type = USER_ACTION_COOKIE_SFLOW;
530 cookie.sflow.vlan_tci = htons(tci);
531 cookie.sflow.output = output;
532 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
535 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",slow_path%n",
537 union user_action_cookie cookie;
540 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
541 cookie.slow_path.unused = 0;
542 cookie.slow_path.reason = 0;
544 res = parse_flags(&s[n], slow_path_reason_to_string,
545 &cookie.slow_path.reason);
555 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
558 } else if (ovs_scan(s, "userspace(pid=%"SCNi32","
559 "flow_sample(probability=%"SCNi32","
560 "collector_set_id=%"SCNi32","
561 "obs_domain_id=%"SCNi32","
562 "obs_point_id=%"SCNi32"))%n",
563 &pid, &probability, &collector_set_id,
564 &obs_domain_id, &obs_point_id, &n)) {
565 union user_action_cookie cookie;
567 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
568 cookie.flow_sample.probability = probability;
569 cookie.flow_sample.collector_set_id = collector_set_id;
570 cookie.flow_sample.obs_domain_id = obs_domain_id;
571 cookie.flow_sample.obs_point_id = obs_point_id;
572 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
575 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",ipfix)%n", &pid, &n)) {
576 union user_action_cookie cookie;
578 cookie.type = USER_ACTION_COOKIE_IPFIX;
579 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
582 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",userdata(%n",
587 ofpbuf_init(&buf, 16);
588 end = ofpbuf_put_hex(&buf, &s[n], NULL);
589 if (end[0] == ')' && end[1] == ')') {
590 odp_put_userspace_action(pid, buf.data, buf.size, actions);
592 return (end + 2) - s;
597 if (!strncmp(s, "set(", 4)) {
601 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
602 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
606 if (s[retval + 4] != ')') {
609 nl_msg_end_nested(actions, start_ofs);
614 struct ovs_action_push_vlan push;
615 int tpid = ETH_TYPE_VLAN;
620 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
621 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
622 &vid, &pcp, &cfi, &n)
623 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
624 &tpid, &vid, &pcp, &n)
625 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
626 &tpid, &vid, &pcp, &cfi, &n)) {
627 push.vlan_tpid = htons(tpid);
628 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
629 | (pcp << VLAN_PCP_SHIFT)
630 | (cfi ? VLAN_CFI : 0));
631 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
638 if (!strncmp(s, "pop_vlan", 8)) {
639 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
647 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
648 && percentage >= 0. && percentage <= 100.0) {
649 size_t sample_ofs, actions_ofs;
652 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
653 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
654 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
655 (probability <= 0 ? 0
656 : probability >= UINT32_MAX ? UINT32_MAX
659 actions_ofs = nl_msg_start_nested(actions,
660 OVS_SAMPLE_ATTR_ACTIONS);
664 n += strspn(s + n, delimiters);
669 retval = parse_odp_action(s + n, port_names, actions);
675 nl_msg_end_nested(actions, actions_ofs);
676 nl_msg_end_nested(actions, sample_ofs);
678 return s[n + 1] == ')' ? n + 2 : -EINVAL;
685 /* Parses the string representation of datapath actions, in the format output
686 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
687 * value. On success, the ODP actions are appended to 'actions' as a series of
688 * Netlink attributes. On failure, no data is appended to 'actions'. Either
689 * way, 'actions''s data might be reallocated. */
691 odp_actions_from_string(const char *s, const struct simap *port_names,
692 struct ofpbuf *actions)
696 if (!strcasecmp(s, "drop")) {
700 old_size = actions->size;
704 s += strspn(s, delimiters);
709 retval = parse_odp_action(s, port_names, actions);
710 if (retval < 0 || !strchr(delimiters, s[retval])) {
711 actions->size = old_size;
720 /* Returns the correct length of the payload for a flow key attribute of the
721 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
722 * is variable length. */
724 odp_flow_key_attr_len(uint16_t type)
726 if (type > OVS_KEY_ATTR_MAX) {
730 switch ((enum ovs_key_attr) type) {
731 case OVS_KEY_ATTR_ENCAP: return -2;
732 case OVS_KEY_ATTR_PRIORITY: return 4;
733 case OVS_KEY_ATTR_SKB_MARK: return 4;
734 case OVS_KEY_ATTR_TUNNEL: return -2;
735 case OVS_KEY_ATTR_IN_PORT: return 4;
736 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
737 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
738 case OVS_KEY_ATTR_ETHERTYPE: return 2;
739 case OVS_KEY_ATTR_MPLS: return -2;
740 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
741 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
742 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
743 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
744 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
745 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
746 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
747 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
748 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
749 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
751 case OVS_KEY_ATTR_UNSPEC:
752 case __OVS_KEY_ATTR_MAX:
760 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
762 size_t len = nl_attr_get_size(a);
764 const uint8_t *unspec;
767 unspec = nl_attr_get(a);
768 for (i = 0; i < len; i++) {
770 ds_put_char(ds, ' ');
772 ds_put_format(ds, "%02x", unspec[i]);
778 ovs_frag_type_to_string(enum ovs_frag_type type)
781 case OVS_FRAG_TYPE_NONE:
783 case OVS_FRAG_TYPE_FIRST:
785 case OVS_FRAG_TYPE_LATER:
787 case __OVS_FRAG_TYPE_MAX:
794 tunnel_key_attr_len(int type)
797 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
798 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
799 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
800 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
801 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
802 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
803 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
804 case __OVS_TUNNEL_KEY_ATTR_MAX:
811 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
814 const struct nlattr *a;
816 bool unknown = false;
818 NL_NESTED_FOR_EACH(a, left, attr) {
819 uint16_t type = nl_attr_type(a);
820 size_t len = nl_attr_get_size(a);
821 int expected_len = tunnel_key_attr_len(type);
823 if (len != expected_len && expected_len >= 0) {
824 return ODP_FIT_ERROR;
828 case OVS_TUNNEL_KEY_ATTR_ID:
829 tun->tun_id = nl_attr_get_be64(a);
830 tun->flags |= FLOW_TNL_F_KEY;
832 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
833 tun->ip_src = nl_attr_get_be32(a);
835 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
836 tun->ip_dst = nl_attr_get_be32(a);
838 case OVS_TUNNEL_KEY_ATTR_TOS:
839 tun->ip_tos = nl_attr_get_u8(a);
841 case OVS_TUNNEL_KEY_ATTR_TTL:
842 tun->ip_ttl = nl_attr_get_u8(a);
845 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
846 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
848 case OVS_TUNNEL_KEY_ATTR_CSUM:
849 tun->flags |= FLOW_TNL_F_CSUM;
852 /* Allow this to show up as unexpected, if there are unknown
853 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
860 return ODP_FIT_ERROR;
863 return ODP_FIT_TOO_MUCH;
865 return ODP_FIT_PERFECT;
869 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
873 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
875 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
876 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
877 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
879 if (tun_key->ip_src) {
880 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
882 if (tun_key->ip_dst) {
883 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
885 if (tun_key->ip_tos) {
886 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
888 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
889 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
890 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
892 if (tun_key->flags & FLOW_TNL_F_CSUM) {
893 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
896 nl_msg_end_nested(a, tun_key_ofs);
900 odp_mask_attr_is_wildcard(const struct nlattr *ma)
902 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
906 odp_mask_attr_is_exact(const struct nlattr *ma)
908 bool is_exact = false;
909 enum ovs_key_attr attr = nl_attr_type(ma);
911 if (attr == OVS_KEY_ATTR_TUNNEL) {
912 /* XXX this is a hack for now. Should change
913 * the exact match dection to per field
914 * instead of per attribute.
916 struct flow_tnl tun_mask;
917 memset(&tun_mask, 0, sizeof tun_mask);
918 odp_tun_key_from_attr(ma, &tun_mask);
919 if (tun_mask.flags == (FLOW_TNL_F_KEY
920 | FLOW_TNL_F_DONT_FRAGMENT
921 | FLOW_TNL_F_CSUM)) {
922 /* The flags are exact match, check the remaining fields. */
923 tun_mask.flags = 0xffff;
924 is_exact = is_all_ones((uint8_t *)&tun_mask,
925 offsetof(struct flow_tnl, ip_ttl));
928 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
935 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
938 struct odp_portno_names *odp_portno_names;
940 odp_portno_names = xmalloc(sizeof *odp_portno_names);
941 odp_portno_names->port_no = port_no;
942 odp_portno_names->name = xstrdup(port_name);
943 hmap_insert(portno_names, &odp_portno_names->hmap_node,
944 hash_odp_port(port_no));
948 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
950 struct odp_portno_names *odp_portno_names;
952 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
953 hash_odp_port(port_no), portno_names) {
954 if (odp_portno_names->port_no == port_no) {
955 return odp_portno_names->name;
962 odp_portno_names_destroy(struct hmap *portno_names)
964 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
965 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
966 hmap_node, portno_names) {
967 hmap_remove(portno_names, &odp_portno_names->hmap_node);
968 free(odp_portno_names->name);
969 free(odp_portno_names);
974 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
975 const struct hmap *portno_names, struct ds *ds,
978 struct flow_tnl tun_key;
979 enum ovs_key_attr attr = nl_attr_type(a);
980 char namebuf[OVS_KEY_ATTR_BUFSIZE];
984 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
986 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
989 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
990 if (expected_len != -2) {
991 bool bad_key_len = nl_attr_get_size(a) != expected_len;
992 bool bad_mask_len = ma && nl_attr_get_size(a) != expected_len;
994 if (bad_key_len || bad_mask_len) {
996 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
998 odp_flow_key_attr_len(nl_attr_type(a)));
1000 format_generic_odp_key(a, ds);
1002 ds_put_char(ds, '/');
1003 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1004 nl_attr_get_size(ma),
1005 odp_flow_key_attr_len(nl_attr_type(ma)));
1007 format_generic_odp_key(ma, ds);
1008 ds_put_char(ds, ')');
1014 ds_put_char(ds, '(');
1016 case OVS_KEY_ATTR_ENCAP:
1017 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1018 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1019 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1021 } else if (nl_attr_get_size(a)) {
1022 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1027 case OVS_KEY_ATTR_PRIORITY:
1028 case OVS_KEY_ATTR_SKB_MARK:
1029 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1031 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1035 case OVS_KEY_ATTR_TUNNEL:
1036 memset(&tun_key, 0, sizeof tun_key);
1037 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1038 ds_put_format(ds, "error");
1039 } else if (!is_exact) {
1040 struct flow_tnl tun_mask;
1042 memset(&tun_mask, 0, sizeof tun_mask);
1043 odp_tun_key_from_attr(ma, &tun_mask);
1044 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1045 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1046 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1048 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1049 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1050 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1051 tun_key.ip_tos, tun_mask.ip_tos,
1052 tun_key.ip_ttl, tun_mask.ip_ttl);
1054 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1056 /* XXX This code is correct, but enabling it would break the unit
1057 test. Disable it for now until the input parser is fixed.
1059 ds_put_char(ds, '/');
1060 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1062 ds_put_char(ds, ')');
1064 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1065 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1066 ntohll(tun_key.tun_id),
1067 IP_ARGS(tun_key.ip_src),
1068 IP_ARGS(tun_key.ip_dst),
1069 tun_key.ip_tos, tun_key.ip_ttl);
1071 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1072 ds_put_char(ds, ')');
1076 case OVS_KEY_ATTR_IN_PORT:
1077 if (portno_names && verbose && is_exact) {
1078 char *name = odp_portno_names_get(portno_names,
1079 u32_to_odp(nl_attr_get_u32(a)));
1081 ds_put_format(ds, "%s", name);
1083 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1086 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1088 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1093 case OVS_KEY_ATTR_ETHERNET:
1095 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1096 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1098 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1099 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1100 ETH_ADDR_ARGS(eth_key->eth_src),
1101 ETH_ADDR_ARGS(eth_mask->eth_src),
1102 ETH_ADDR_ARGS(eth_key->eth_dst),
1103 ETH_ADDR_ARGS(eth_mask->eth_dst));
1105 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1107 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1108 ETH_ADDR_ARGS(eth_key->eth_src),
1109 ETH_ADDR_ARGS(eth_key->eth_dst));
1113 case OVS_KEY_ATTR_VLAN:
1115 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1117 ovs_be16 mask = nl_attr_get_be16(ma);
1118 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1119 vlan_tci_to_vid(vlan_tci),
1120 vlan_tci_to_vid(mask),
1121 vlan_tci_to_pcp(vlan_tci),
1122 vlan_tci_to_pcp(mask),
1123 vlan_tci_to_cfi(vlan_tci),
1124 vlan_tci_to_cfi(mask));
1126 format_vlan_tci(ds, vlan_tci);
1131 case OVS_KEY_ATTR_MPLS: {
1132 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1133 const struct ovs_key_mpls *mpls_mask = NULL;
1134 size_t size = nl_attr_get_size(a);
1136 if (!size || size % sizeof *mpls_key) {
1137 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1138 nl_attr_get_size(a));
1142 mpls_mask = nl_attr_get(ma);
1143 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1144 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1145 "mask length %"PRIuSIZE")",
1146 nl_attr_get_size(a), nl_attr_get_size(ma));
1150 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1154 case OVS_KEY_ATTR_ETHERTYPE:
1155 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1157 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1161 case OVS_KEY_ATTR_IPV4:
1163 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1164 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1166 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1167 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1168 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1169 IP_ARGS(ipv4_key->ipv4_src),
1170 IP_ARGS(ipv4_mask->ipv4_src),
1171 IP_ARGS(ipv4_key->ipv4_dst),
1172 IP_ARGS(ipv4_mask->ipv4_dst),
1173 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1174 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1175 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1176 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1177 ipv4_mask->ipv4_frag);
1179 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1181 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1182 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1183 IP_ARGS(ipv4_key->ipv4_src),
1184 IP_ARGS(ipv4_key->ipv4_dst),
1185 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1187 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1191 case OVS_KEY_ATTR_IPV6:
1193 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1194 char src_str[INET6_ADDRSTRLEN];
1195 char dst_str[INET6_ADDRSTRLEN];
1196 char src_mask[INET6_ADDRSTRLEN];
1197 char dst_mask[INET6_ADDRSTRLEN];
1199 ipv6_key = nl_attr_get(a);
1200 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1201 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1203 ipv6_mask = nl_attr_get(ma);
1204 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1205 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1207 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1208 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1209 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1210 src_str, src_mask, dst_str, dst_mask,
1211 ntohl(ipv6_key->ipv6_label),
1212 ntohl(ipv6_mask->ipv6_label),
1213 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1214 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1215 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1216 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1217 ipv6_mask->ipv6_frag);
1219 const struct ovs_key_ipv6 *ipv6_key;
1220 char src_str[INET6_ADDRSTRLEN];
1221 char dst_str[INET6_ADDRSTRLEN];
1223 ipv6_key = nl_attr_get(a);
1224 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1225 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1227 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1228 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1229 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1230 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1231 ipv6_key->ipv6_hlimit,
1232 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1236 case OVS_KEY_ATTR_TCP:
1238 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1239 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1241 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1242 ",dst=%"PRIu16"/%#"PRIx16,
1243 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1244 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1246 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1248 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1249 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1253 case OVS_KEY_ATTR_TCP_FLAGS:
1254 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1256 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1260 case OVS_KEY_ATTR_UDP:
1262 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1263 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1265 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1266 ",dst=%"PRIu16"/%#"PRIx16,
1267 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1268 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1270 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1272 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1273 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1277 case OVS_KEY_ATTR_SCTP:
1279 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1280 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1282 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1283 ",dst=%"PRIu16"/%#"PRIx16,
1284 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1285 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1287 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1289 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
1290 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1294 case OVS_KEY_ATTR_ICMP:
1296 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1297 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1299 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1300 icmp_key->icmp_type, icmp_mask->icmp_type,
1301 icmp_key->icmp_code, icmp_mask->icmp_code);
1303 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1305 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1306 icmp_key->icmp_type, icmp_key->icmp_code);
1310 case OVS_KEY_ATTR_ICMPV6:
1312 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1313 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1315 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1316 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1317 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1319 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1321 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1322 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1326 case OVS_KEY_ATTR_ARP:
1328 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1329 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1331 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1332 ",op=%"PRIu16"/%#"PRIx16
1333 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1334 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1335 IP_ARGS(arp_key->arp_sip),
1336 IP_ARGS(arp_mask->arp_sip),
1337 IP_ARGS(arp_key->arp_tip),
1338 IP_ARGS(arp_mask->arp_tip),
1339 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1340 ETH_ADDR_ARGS(arp_key->arp_sha),
1341 ETH_ADDR_ARGS(arp_mask->arp_sha),
1342 ETH_ADDR_ARGS(arp_key->arp_tha),
1343 ETH_ADDR_ARGS(arp_mask->arp_tha));
1345 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1347 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1348 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1349 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1350 ntohs(arp_key->arp_op),
1351 ETH_ADDR_ARGS(arp_key->arp_sha),
1352 ETH_ADDR_ARGS(arp_key->arp_tha));
1356 case OVS_KEY_ATTR_ND: {
1357 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1358 char target[INET6_ADDRSTRLEN];
1360 nd_key = nl_attr_get(a);
1362 nd_mask = nl_attr_get(ma);
1365 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1366 ds_put_format(ds, "target=%s", target);
1368 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1369 ds_put_format(ds, "/%s", target);
1372 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1373 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1374 ETH_ADDR_ARGS(nd_key->nd_sll));
1376 ds_put_format(ds, "/"ETH_ADDR_FMT,
1377 ETH_ADDR_ARGS(nd_mask->nd_sll));
1380 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1381 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1382 ETH_ADDR_ARGS(nd_key->nd_tll));
1384 ds_put_format(ds, "/"ETH_ADDR_FMT,
1385 ETH_ADDR_ARGS(nd_mask->nd_tll));
1391 case OVS_KEY_ATTR_UNSPEC:
1392 case __OVS_KEY_ATTR_MAX:
1394 format_generic_odp_key(a, ds);
1396 ds_put_char(ds, '/');
1397 format_generic_odp_key(ma, ds);
1401 ds_put_char(ds, ')');
1404 static struct nlattr *
1405 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1407 const struct nlattr *a;
1409 int type = nl_attr_type(key);
1410 int size = nl_attr_get_size(key);
1412 if (odp_flow_key_attr_len(type) >=0) {
1413 nl_msg_put_unspec_zero(ofp, type, size);
1417 nested_mask = nl_msg_start_nested(ofp, type);
1418 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1419 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1421 nl_msg_end_nested(ofp, nested_mask);
1427 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1428 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1429 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1430 * non-null and 'verbose' is true, translates odp port number to its name. */
1432 odp_flow_format(const struct nlattr *key, size_t key_len,
1433 const struct nlattr *mask, size_t mask_len,
1434 const struct hmap *portno_names, struct ds *ds, bool verbose)
1437 const struct nlattr *a;
1439 bool has_ethtype_key = false;
1440 const struct nlattr *ma = NULL;
1442 bool first_field = true;
1444 ofpbuf_init(&ofp, 100);
1445 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1446 bool is_nested_attr;
1447 bool is_wildcard = false;
1448 int attr_type = nl_attr_type(a);
1450 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1451 has_ethtype_key = true;
1454 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1456 if (mask && mask_len) {
1457 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1458 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1461 if (verbose || !is_wildcard || is_nested_attr) {
1462 if (is_wildcard && !ma) {
1463 ma = generate_all_wildcard_mask(&ofp, a);
1466 ds_put_char(ds, ',');
1468 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1469 first_field = false;
1473 ofpbuf_uninit(&ofp);
1478 if (left == key_len) {
1479 ds_put_cstr(ds, "<empty>");
1481 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1482 for (i = 0; i < left; i++) {
1483 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1485 ds_put_char(ds, ')');
1487 if (!has_ethtype_key) {
1488 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1490 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1491 ntohs(nl_attr_get_be16(ma)));
1495 ds_put_cstr(ds, "<empty>");
1499 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1500 * OVS_KEY_ATTR_* attributes in 'key'. */
1502 odp_flow_key_format(const struct nlattr *key,
1503 size_t key_len, struct ds *ds)
1505 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1509 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1510 const uint8_t *nd_tll, struct ofpbuf *key)
1513 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1517 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1520 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1524 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1525 const uint8_t *nd_tll, struct ofpbuf *key)
1527 struct ovs_key_nd nd_key;
1529 memset(&nd_key, 0, sizeof nd_key);
1531 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1535 put_nd(&nd_key, nd_sll, nd_tll, key);
1540 put_nd_mask(int n, const char *nd_target_s,
1541 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1543 struct ovs_key_nd nd_mask;
1545 memset(&nd_mask, 0xff, sizeof nd_mask);
1547 if (strlen(nd_target_s) != 0 &&
1548 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1552 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1557 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1559 if (!strcasecmp(s, "no")) {
1560 *type = OVS_FRAG_TYPE_NONE;
1561 } else if (!strcasecmp(s, "first")) {
1562 *type = OVS_FRAG_TYPE_FIRST;
1563 } else if (!strcasecmp(s, "later")) {
1564 *type = OVS_FRAG_TYPE_LATER;
1572 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1574 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1575 (mpls_tc << MPLS_TC_SHIFT) |
1576 (mpls_ttl << MPLS_TTL_SHIFT) |
1577 (mpls_bos << MPLS_BOS_SHIFT)));
1581 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1582 struct ofpbuf *key, struct ofpbuf *mask)
1586 uint32_t priority_mask;
1589 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1590 &priority, &priority_mask, &n)) {
1591 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1592 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1594 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1595 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1597 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1608 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1610 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1611 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1613 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1614 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1616 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1623 uint64_t tun_id, tun_id_mask;
1624 struct flow_tnl tun_key, tun_key_mask;
1627 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1628 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1629 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1630 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1631 &tun_id, &tun_id_mask,
1632 IP_SCAN_ARGS(&tun_key.ip_src),
1633 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1634 IP_SCAN_ARGS(&tun_key.ip_dst),
1635 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1636 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1637 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1641 tun_key.tun_id = htonll(tun_id);
1642 tun_key_mask.tun_id = htonll(tun_id_mask);
1643 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1644 tun_key.flags = flags;
1645 tun_key_mask.flags = UINT16_MAX;
1655 tun_key_to_attr(key, &tun_key);
1657 tun_key_to_attr(mask, &tun_key_mask);
1660 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1661 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1662 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1663 IP_SCAN_ARGS(&tun_key.ip_src),
1664 IP_SCAN_ARGS(&tun_key.ip_dst),
1665 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1669 tun_key.tun_id = htonll(tun_id);
1670 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1671 tun_key.flags = flags;
1681 tun_key_to_attr(key, &tun_key);
1684 memset(&tun_key, 0xff, sizeof tun_key);
1685 tun_key_to_attr(mask, &tun_key);
1693 uint32_t in_port_mask;
1696 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1697 &in_port, &in_port_mask, &n)) {
1698 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1699 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1701 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1702 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1704 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1711 if (port_names && !strncmp(s, "in_port(", 8)) {
1713 const struct simap_node *node;
1717 name_len = strcspn(name, ")");
1718 node = simap_find_len(port_names, name, name_len);
1720 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1723 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1725 return 8 + name_len + 1;
1730 struct ovs_key_ethernet eth_key;
1731 struct ovs_key_ethernet eth_key_mask;
1734 if (mask && ovs_scan(s,
1735 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1736 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1737 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1738 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1739 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1740 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1741 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1742 ð_key, sizeof eth_key);
1743 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1744 ð_key_mask, sizeof eth_key_mask);
1746 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1747 "dst="ETH_ADDR_SCAN_FMT")%n",
1748 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1749 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1750 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1751 ð_key, sizeof eth_key);
1754 memset(ð_key, 0xff, sizeof eth_key);
1755 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1756 ð_key, sizeof eth_key);
1768 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1769 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1770 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1771 htons((vid << VLAN_VID_SHIFT) |
1772 (pcp << VLAN_PCP_SHIFT) |
1774 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1775 htons((vid_mask << VLAN_VID_SHIFT) |
1776 (pcp_mask << VLAN_PCP_SHIFT) |
1777 (1 << VLAN_CFI_SHIFT)));
1779 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1780 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1781 htons((vid << VLAN_VID_SHIFT) |
1782 (pcp << VLAN_PCP_SHIFT) |
1785 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1789 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1790 &vid, &vid_mask, &pcp, &pcp_mask,
1791 &cfi, &cfi_mask, &n)) {
1792 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1793 htons((vid << VLAN_VID_SHIFT) |
1794 (pcp << VLAN_PCP_SHIFT) |
1795 (cfi ? VLAN_CFI : 0)));
1796 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1797 htons((vid_mask << VLAN_VID_SHIFT) |
1798 (pcp_mask << VLAN_PCP_SHIFT) |
1799 (cfi_mask << VLAN_CFI_SHIFT)));
1801 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1802 &vid, &pcp, &cfi, &n)) {
1803 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1804 htons((vid << VLAN_VID_SHIFT) |
1805 (pcp << VLAN_PCP_SHIFT) |
1806 (cfi ? VLAN_CFI : 0)));
1808 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1819 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1820 ð_type, ð_type_mask, &n)) {
1821 if (eth_type != 0) {
1822 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1824 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1826 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1827 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1829 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
1836 int label, tc, ttl, bos;
1837 int label_mask, tc_mask, ttl_mask, bos_mask;
1840 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
1841 "ttl=%i/%i,bos=%i/%i)%n",
1842 &label, &label_mask, &tc, &tc_mask,
1843 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
1844 struct ovs_key_mpls *mpls, *mpls_mask;
1846 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1848 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1850 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1852 mpls_mask->mpls_lse = mpls_lse_from_components(
1853 label_mask, tc_mask, ttl_mask, bos_mask);
1855 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
1856 &label, &tc, &ttl, &bos, &n)) {
1857 struct ovs_key_mpls *mpls;
1859 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1861 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1863 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1865 mpls->mpls_lse = OVS_BE32_MAX;
1873 struct ovs_key_ipv4 ipv4_key;
1874 struct ovs_key_ipv4 ipv4_mask;
1877 enum ovs_frag_type ipv4_frag;
1881 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1882 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1883 "proto=%"SCNi8"/%"SCNi8","
1884 "tos=%"SCNi8"/%"SCNi8","
1885 "ttl=%"SCNi8"/%"SCNi8","
1886 "frag=%7[a-z]/%"SCNi8")%n",
1887 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1888 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
1889 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1890 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
1891 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
1892 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
1893 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
1894 frag, &ipv4_mask.ipv4_frag, &n)
1895 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1896 ipv4_key.ipv4_frag = ipv4_frag;
1897 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1898 &ipv4_key, sizeof ipv4_key);
1900 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1901 &ipv4_mask, sizeof ipv4_mask);
1903 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1904 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
1906 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1907 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1908 &ipv4_key.ipv4_proto,
1912 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1913 ipv4_key.ipv4_frag = ipv4_frag;
1914 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1915 &ipv4_key, sizeof ipv4_key);
1918 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1919 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1920 &ipv4_key, sizeof ipv4_key);
1927 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1928 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1929 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1930 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1931 int ipv6_label, ipv6_label_mask;
1932 int ipv6_proto, ipv6_proto_mask;
1933 int ipv6_tclass, ipv6_tclass_mask;
1934 int ipv6_hlimit, ipv6_hlimit_mask;
1936 enum ovs_frag_type ipv6_frag;
1940 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
1941 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
1942 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
1943 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
1944 ipv6_src_s, ipv6_src_mask_s,
1945 ipv6_dst_s, ipv6_dst_mask_s,
1946 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
1947 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
1948 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
1949 &ipv6_frag_mask, &n)
1950 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1951 struct ovs_key_ipv6 ipv6_key;
1952 struct ovs_key_ipv6 ipv6_mask;
1954 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1955 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
1956 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
1957 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
1961 ipv6_key.ipv6_label = htonl(ipv6_label);
1962 ipv6_key.ipv6_proto = ipv6_proto;
1963 ipv6_key.ipv6_tclass = ipv6_tclass;
1964 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1965 ipv6_key.ipv6_frag = ipv6_frag;
1966 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1967 &ipv6_key, sizeof ipv6_key);
1969 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
1970 ipv6_mask.ipv6_proto = ipv6_proto_mask;
1971 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
1972 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
1973 ipv6_mask.ipv6_frag = ipv6_frag_mask;
1974 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1975 &ipv6_mask, sizeof ipv6_mask);
1977 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
1978 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
1980 ipv6_src_s, ipv6_dst_s, &ipv6_label,
1981 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
1982 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1983 struct ovs_key_ipv6 ipv6_key;
1985 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1986 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1989 ipv6_key.ipv6_label = htonl(ipv6_label);
1990 ipv6_key.ipv6_proto = ipv6_proto;
1991 ipv6_key.ipv6_tclass = ipv6_tclass;
1992 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1993 ipv6_key.ipv6_frag = ipv6_frag;
1994 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1995 &ipv6_key, sizeof ipv6_key);
1998 memset(&ipv6_key, 0xff, sizeof ipv6_key);
1999 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2000 &ipv6_key, sizeof ipv6_key);
2013 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2014 &tcp_src, &tcp_src_mask, &tcp_dst,
2015 &tcp_dst_mask, &n)) {
2016 struct ovs_key_tcp tcp_key;
2017 struct ovs_key_tcp tcp_mask;
2019 tcp_key.tcp_src = htons(tcp_src);
2020 tcp_key.tcp_dst = htons(tcp_dst);
2021 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2023 tcp_mask.tcp_src = htons(tcp_src_mask);
2024 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2025 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2026 &tcp_mask, sizeof tcp_mask);
2028 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2029 &tcp_src, &tcp_dst, &n)) {
2030 struct ovs_key_tcp tcp_key;
2032 tcp_key.tcp_src = htons(tcp_src);
2033 tcp_key.tcp_dst = htons(tcp_dst);
2034 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2037 memset(&tcp_key, 0xff, sizeof tcp_key);
2038 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2039 &tcp_key, sizeof tcp_key);
2046 uint16_t tcp_flags, tcp_flags_mask;
2049 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2050 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2051 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2052 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2054 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2055 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2057 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2071 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2072 &udp_src, &udp_src_mask,
2073 &udp_dst, &udp_dst_mask, &n)) {
2074 struct ovs_key_udp udp_key;
2075 struct ovs_key_udp udp_mask;
2077 udp_key.udp_src = htons(udp_src);
2078 udp_key.udp_dst = htons(udp_dst);
2079 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2081 udp_mask.udp_src = htons(udp_src_mask);
2082 udp_mask.udp_dst = htons(udp_dst_mask);
2083 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2084 &udp_mask, sizeof udp_mask);
2087 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2088 struct ovs_key_udp udp_key;
2090 udp_key.udp_src = htons(udp_src);
2091 udp_key.udp_dst = htons(udp_dst);
2092 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2095 memset(&udp_key, 0xff, sizeof udp_key);
2096 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2109 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2110 &sctp_src, &sctp_src_mask,
2111 &sctp_dst, &sctp_dst_mask, &n)) {
2112 struct ovs_key_sctp sctp_key;
2113 struct ovs_key_sctp sctp_mask;
2115 sctp_key.sctp_src = htons(sctp_src);
2116 sctp_key.sctp_dst = htons(sctp_dst);
2117 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2119 sctp_mask.sctp_src = htons(sctp_src_mask);
2120 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2121 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2122 &sctp_mask, sizeof sctp_mask);
2125 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2126 struct ovs_key_sctp sctp_key;
2128 sctp_key.sctp_src = htons(sctp_src);
2129 sctp_key.sctp_dst = htons(sctp_dst);
2130 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2133 memset(&sctp_key, 0xff, sizeof sctp_key);
2134 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2141 struct ovs_key_icmp icmp_key;
2142 struct ovs_key_icmp icmp_mask;
2145 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2146 "code=%"SCNi8"/%"SCNi8")%n",
2147 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2148 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2149 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2150 &icmp_key, sizeof icmp_key);
2151 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2152 &icmp_mask, sizeof icmp_mask);
2154 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2155 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2156 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2157 &icmp_key, sizeof icmp_key);
2159 memset(&icmp_key, 0xff, sizeof icmp_key);
2160 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2168 struct ovs_key_icmpv6 icmpv6_key;
2169 struct ovs_key_icmpv6 icmpv6_mask;
2172 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2173 "code=%"SCNi8"/%"SCNi8")%n",
2174 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2175 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2177 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2178 &icmpv6_key, sizeof icmpv6_key);
2179 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2180 sizeof icmpv6_mask);
2182 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2183 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2185 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2186 &icmpv6_key, sizeof icmpv6_key);
2189 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2190 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2198 struct ovs_key_arp arp_key;
2199 struct ovs_key_arp arp_mask;
2200 uint16_t arp_op, arp_op_mask;
2203 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2204 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2205 "op=%"SCNi16"/%"SCNi16","
2206 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2207 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2208 IP_SCAN_ARGS(&arp_key.arp_sip),
2209 IP_SCAN_ARGS(&arp_mask.arp_sip),
2210 IP_SCAN_ARGS(&arp_key.arp_tip),
2211 IP_SCAN_ARGS(&arp_mask.arp_tip),
2212 &arp_op, &arp_op_mask,
2213 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2214 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2215 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2216 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2217 arp_key.arp_op = htons(arp_op);
2218 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2219 arp_mask.arp_op = htons(arp_op_mask);
2220 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2221 &arp_mask, sizeof arp_mask);
2223 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2224 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2225 "tha="ETH_ADDR_SCAN_FMT")%n",
2226 IP_SCAN_ARGS(&arp_key.arp_sip),
2227 IP_SCAN_ARGS(&arp_key.arp_tip),
2229 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2230 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2231 arp_key.arp_op = htons(arp_op);
2232 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2235 memset(&arp_key, 0xff, sizeof arp_key);
2236 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2237 &arp_key, sizeof arp_key);
2244 char nd_target_s[IPV6_SCAN_LEN + 1];
2245 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2246 uint8_t nd_sll[ETH_ADDR_LEN];
2247 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2248 uint8_t nd_tll[ETH_ADDR_LEN];
2249 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2252 nd_target_mask_s[0] = 0;
2253 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2254 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2256 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2257 nd_target_s, nd_target_mask_s, &n)) {
2258 put_nd_key(n, nd_target_s, NULL, NULL, key);
2259 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2260 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2262 put_nd_key(n, nd_target_s, NULL, NULL, key);
2264 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2267 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2268 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2269 nd_target_s, nd_target_mask_s,
2270 ETH_ADDR_SCAN_ARGS(nd_sll),
2271 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2272 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2273 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2274 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2275 "sll="ETH_ADDR_SCAN_FMT")%n",
2276 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2277 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2279 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2282 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2283 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2284 nd_target_s, nd_target_mask_s,
2285 ETH_ADDR_SCAN_ARGS(nd_tll),
2286 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2287 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2288 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2289 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2290 "tll="ETH_ADDR_SCAN_FMT")%n",
2291 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2292 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2294 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2297 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2298 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2299 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2300 nd_target_s, nd_target_mask_s,
2301 ETH_ADDR_SCAN_ARGS(nd_sll),
2302 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2303 ETH_ADDR_SCAN_ARGS(nd_tll),
2304 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2306 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2307 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2308 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2309 "sll="ETH_ADDR_SCAN_FMT","
2310 "tll="ETH_ADDR_SCAN_FMT")%n",
2311 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2312 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2313 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2315 put_nd_mask(n, nd_target_mask_s,
2316 nd_sll_mask, nd_tll_mask, mask);
2325 if (!strncmp(s, "encap(", 6)) {
2326 const char *start = s;
2327 size_t encap, encap_mask = 0;
2329 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2331 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2338 s += strspn(s, ", \t\r\n");
2341 } else if (*s == ')') {
2345 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2353 nl_msg_end_nested(key, encap);
2355 nl_msg_end_nested(mask, encap_mask);
2364 /* Parses the string representation of a datapath flow key, in the
2365 * format output by odp_flow_key_format(). Returns 0 if successful,
2366 * otherwise a positive errno value. On success, the flow key is
2367 * appended to 'key' as a series of Netlink attributes. On failure, no
2368 * data is appended to 'key'. Either way, 'key''s data might be
2371 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2372 * to a port number. (Port names may be used instead of port numbers in
2375 * On success, the attributes appended to 'key' are individually syntactically
2376 * valid, but they may not be valid as a sequence. 'key' might, for example,
2377 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2379 odp_flow_from_string(const char *s, const struct simap *port_names,
2380 struct ofpbuf *key, struct ofpbuf *mask)
2382 const size_t old_size = key->size;
2386 s += strspn(s, delimiters);
2391 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2393 key->size = old_size;
2403 ovs_to_odp_frag(uint8_t nw_frag)
2405 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2406 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2407 : OVS_FRAG_TYPE_LATER);
2411 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2413 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2415 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2416 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2422 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2423 const struct flow *flow, odp_port_t odp_in_port,
2424 size_t max_mpls_depth)
2427 struct ovs_key_ethernet *eth_key;
2430 /* We assume that if 'data' and 'flow' are not the same, we should
2431 * treat 'data' as a mask. */
2432 is_mask = (data != flow);
2434 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2436 if (flow->tunnel.ip_dst || is_mask) {
2437 tun_key_to_attr(buf, &data->tunnel);
2440 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2442 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2443 * is not the magical value "ODPP_NONE". */
2444 if (is_mask || odp_in_port != ODPP_NONE) {
2445 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2448 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2450 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2451 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2453 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2455 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2457 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2459 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2460 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2461 if (flow->vlan_tci == htons(0)) {
2468 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2469 /* For backwards compatibility with kernels that don't support
2470 * wildcarding, the following convention is used to encode the
2471 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2474 * -------- -------- -------
2475 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2476 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2477 * <none> 0xffff Any non-Ethernet II frame (except valid
2478 * 802.3 SNAP packet with valid eth_type).
2481 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2486 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2488 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2489 struct ovs_key_ipv4 *ipv4_key;
2491 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2493 ipv4_key->ipv4_src = data->nw_src;
2494 ipv4_key->ipv4_dst = data->nw_dst;
2495 ipv4_key->ipv4_proto = data->nw_proto;
2496 ipv4_key->ipv4_tos = data->nw_tos;
2497 ipv4_key->ipv4_ttl = data->nw_ttl;
2498 ipv4_key->ipv4_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2499 : ovs_to_odp_frag(data->nw_frag);
2500 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2501 struct ovs_key_ipv6 *ipv6_key;
2503 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2505 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2506 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2507 ipv6_key->ipv6_label = data->ipv6_label;
2508 ipv6_key->ipv6_proto = data->nw_proto;
2509 ipv6_key->ipv6_tclass = data->nw_tos;
2510 ipv6_key->ipv6_hlimit = data->nw_ttl;
2511 ipv6_key->ipv6_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2512 : ovs_to_odp_frag(data->nw_frag);
2513 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2514 flow->dl_type == htons(ETH_TYPE_RARP)) {
2515 struct ovs_key_arp *arp_key;
2517 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2519 arp_key->arp_sip = data->nw_src;
2520 arp_key->arp_tip = data->nw_dst;
2521 arp_key->arp_op = htons(data->nw_proto);
2522 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2523 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2524 } else if (eth_type_mpls(flow->dl_type)) {
2525 struct ovs_key_mpls *mpls_key;
2528 n = flow_count_mpls_labels(flow, NULL);
2529 n = MIN(n, max_mpls_depth);
2530 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2531 n * sizeof *mpls_key);
2532 for (i = 0; i < n; i++) {
2533 mpls_key[i].mpls_lse = data->mpls_lse[i];
2537 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2538 if (flow->nw_proto == IPPROTO_TCP) {
2539 struct ovs_key_tcp *tcp_key;
2541 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2543 tcp_key->tcp_src = data->tp_src;
2544 tcp_key->tcp_dst = data->tp_dst;
2546 if (data->tcp_flags) {
2547 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2549 } else if (flow->nw_proto == IPPROTO_UDP) {
2550 struct ovs_key_udp *udp_key;
2552 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2554 udp_key->udp_src = data->tp_src;
2555 udp_key->udp_dst = data->tp_dst;
2556 } else if (flow->nw_proto == IPPROTO_SCTP) {
2557 struct ovs_key_sctp *sctp_key;
2559 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2561 sctp_key->sctp_src = data->tp_src;
2562 sctp_key->sctp_dst = data->tp_dst;
2563 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2564 && flow->nw_proto == IPPROTO_ICMP) {
2565 struct ovs_key_icmp *icmp_key;
2567 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2569 icmp_key->icmp_type = ntohs(data->tp_src);
2570 icmp_key->icmp_code = ntohs(data->tp_dst);
2571 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2572 && flow->nw_proto == IPPROTO_ICMPV6) {
2573 struct ovs_key_icmpv6 *icmpv6_key;
2575 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2576 sizeof *icmpv6_key);
2577 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2578 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2580 if (flow->tp_dst == htons(0) &&
2581 (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2582 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) &&
2583 (!is_mask || (data->tp_src == htons(0xffff) &&
2584 data->tp_dst == htons(0xffff)))) {
2586 struct ovs_key_nd *nd_key;
2588 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2590 memcpy(nd_key->nd_target, &data->nd_target,
2591 sizeof nd_key->nd_target);
2592 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2593 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2600 nl_msg_end_nested(buf, encap);
2604 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2605 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2606 * number rather than a datapath port number). Instead, if 'odp_in_port'
2607 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2610 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2611 * capable of being expanded to allow for that much space. */
2613 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2614 odp_port_t odp_in_port)
2616 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port, SIZE_MAX);
2619 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2620 * 'buf'. 'flow' is used as a template to determine how to interpret
2621 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2622 * it doesn't indicate whether the other fields should be interpreted as
2623 * ARP, IPv4, IPv6, etc.
2625 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2626 * capable of being expanded to allow for that much space. */
2628 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2629 const struct flow *flow, uint32_t odp_in_port_mask,
2630 size_t max_mpls_depth)
2632 odp_flow_key_from_flow__(buf, mask, flow, u32_to_odp(odp_in_port_mask),
2636 /* Generate ODP flow key from the given packet metadata */
2638 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2640 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2642 if (md->tunnel.ip_dst) {
2643 tun_key_to_attr(buf, &md->tunnel);
2646 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2648 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2649 * value "ODPP_NONE". */
2650 if (md->in_port.odp_port != ODPP_NONE) {
2651 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2655 /* Generate packet metadata from the given ODP flow key. */
2657 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2658 struct pkt_metadata *md)
2660 const struct nlattr *nla;
2662 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2663 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2664 1u << OVS_KEY_ATTR_IN_PORT;
2666 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2668 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2669 uint16_t type = nl_attr_type(nla);
2670 size_t len = nl_attr_get_size(nla);
2671 int expected_len = odp_flow_key_attr_len(type);
2673 if (len != expected_len && expected_len >= 0) {
2677 if (type == OVS_KEY_ATTR_PRIORITY) {
2678 md->skb_priority = nl_attr_get_u32(nla);
2679 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2680 } else if (type == OVS_KEY_ATTR_SKB_MARK) {
2681 md->pkt_mark = nl_attr_get_u32(nla);
2682 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2683 } else if (type == OVS_KEY_ATTR_TUNNEL) {
2684 enum odp_key_fitness res;
2686 res = odp_tun_key_from_attr(nla, &md->tunnel);
2687 if (res == ODP_FIT_ERROR) {
2688 memset(&md->tunnel, 0, sizeof md->tunnel);
2689 } else if (res == ODP_FIT_PERFECT) {
2690 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2692 } else if (type == OVS_KEY_ATTR_IN_PORT) {
2693 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2694 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2697 if (!wanted_attrs) {
2698 return; /* Have everything. */
2704 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2706 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2707 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2708 key_len / sizeof(uint32_t), 0);
2712 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2713 uint64_t attrs, int out_of_range_attr,
2714 const struct nlattr *key, size_t key_len)
2719 if (VLOG_DROP_DBG(rl)) {
2724 for (i = 0; i < 64; i++) {
2725 if (attrs & (UINT64_C(1) << i)) {
2726 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2728 ds_put_format(&s, " %s",
2729 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2732 if (out_of_range_attr) {
2733 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2736 ds_put_cstr(&s, ": ");
2737 odp_flow_key_format(key, key_len, &s);
2739 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2744 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2746 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2748 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2749 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2753 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2754 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2755 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2756 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2763 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2764 const struct nlattr *attrs[], uint64_t *present_attrsp,
2765 int *out_of_range_attrp)
2767 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2768 const struct nlattr *nla;
2769 uint64_t present_attrs;
2772 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2774 *out_of_range_attrp = 0;
2775 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2776 uint16_t type = nl_attr_type(nla);
2777 size_t len = nl_attr_get_size(nla);
2778 int expected_len = odp_flow_key_attr_len(type);
2780 if (len != expected_len && expected_len >= 0) {
2781 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2783 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2784 "length %d", ovs_key_attr_to_string(type, namebuf,
2790 if (type > OVS_KEY_ATTR_MAX) {
2791 *out_of_range_attrp = type;
2793 if (present_attrs & (UINT64_C(1) << type)) {
2794 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2796 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2797 ovs_key_attr_to_string(type,
2798 namebuf, sizeof namebuf));
2802 present_attrs |= UINT64_C(1) << type;
2807 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2811 *present_attrsp = present_attrs;
2815 static enum odp_key_fitness
2816 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2817 uint64_t expected_attrs,
2818 const struct nlattr *key, size_t key_len)
2820 uint64_t missing_attrs;
2821 uint64_t extra_attrs;
2823 missing_attrs = expected_attrs & ~present_attrs;
2824 if (missing_attrs) {
2825 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2826 log_odp_key_attributes(&rl, "expected but not present",
2827 missing_attrs, 0, key, key_len);
2828 return ODP_FIT_TOO_LITTLE;
2831 extra_attrs = present_attrs & ~expected_attrs;
2832 if (extra_attrs || out_of_range_attr) {
2833 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2834 log_odp_key_attributes(&rl, "present but not expected",
2835 extra_attrs, out_of_range_attr, key, key_len);
2836 return ODP_FIT_TOO_MUCH;
2839 return ODP_FIT_PERFECT;
2843 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2844 uint64_t present_attrs, uint64_t *expected_attrs,
2845 struct flow *flow, const struct flow *src_flow)
2847 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2848 bool is_mask = flow != src_flow;
2850 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2851 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2852 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2853 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2854 ntohs(flow->dl_type));
2857 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2858 flow->dl_type != htons(0xffff)) {
2861 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2864 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2865 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
2866 /* See comments in odp_flow_key_from_flow__(). */
2867 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
2874 static enum odp_key_fitness
2875 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2876 uint64_t present_attrs, int out_of_range_attr,
2877 uint64_t expected_attrs, struct flow *flow,
2878 const struct nlattr *key, size_t key_len,
2879 const struct flow *src_flow)
2881 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2882 bool is_mask = src_flow != flow;
2883 const void *check_start = NULL;
2884 size_t check_len = 0;
2885 enum ovs_key_attr expected_bit = 0xff;
2887 if (eth_type_mpls(src_flow->dl_type)) {
2888 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
2889 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
2890 int n = size / sizeof(ovs_be32);
2893 if (!size || size % sizeof(ovs_be32)) {
2894 return ODP_FIT_ERROR;
2898 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2900 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2901 return ODP_FIT_TOO_LITTLE;
2903 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
2904 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
2905 return ODP_FIT_ERROR;
2907 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2910 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
2911 flow->mpls_lse[i] = mpls_lse[i];
2913 if (n > FLOW_MAX_MPLS_LABELS) {
2914 return ODP_FIT_TOO_MUCH;
2918 /* BOS may be set only in the innermost label. */
2919 for (i = 0; i < n - 1; i++) {
2920 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
2921 return ODP_FIT_ERROR;
2925 /* BOS must be set in the innermost label. */
2926 if (n < FLOW_MAX_MPLS_LABELS
2927 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
2928 return ODP_FIT_TOO_LITTLE;
2933 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
2935 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
2937 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
2938 const struct ovs_key_ipv4 *ipv4_key;
2940 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
2941 flow->nw_src = ipv4_key->ipv4_src;
2942 flow->nw_dst = ipv4_key->ipv4_dst;
2943 flow->nw_proto = ipv4_key->ipv4_proto;
2944 flow->nw_tos = ipv4_key->ipv4_tos;
2945 flow->nw_ttl = ipv4_key->ipv4_ttl;
2947 flow->nw_frag = ipv4_key->ipv4_frag;
2948 check_start = ipv4_key;
2949 check_len = sizeof *ipv4_key;
2950 expected_bit = OVS_KEY_ATTR_IPV4;
2951 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
2952 return ODP_FIT_ERROR;
2955 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
2957 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
2959 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
2960 const struct ovs_key_ipv6 *ipv6_key;
2962 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
2963 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
2964 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
2965 flow->ipv6_label = ipv6_key->ipv6_label;
2966 flow->nw_proto = ipv6_key->ipv6_proto;
2967 flow->nw_tos = ipv6_key->ipv6_tclass;
2968 flow->nw_ttl = ipv6_key->ipv6_hlimit;
2970 flow->nw_frag = ipv6_key->ipv6_frag;
2971 check_start = ipv6_key;
2972 check_len = sizeof *ipv6_key;
2973 expected_bit = OVS_KEY_ATTR_IPV6;
2974 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
2975 return ODP_FIT_ERROR;
2978 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
2979 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
2981 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
2983 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
2984 const struct ovs_key_arp *arp_key;
2986 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
2987 flow->nw_src = arp_key->arp_sip;
2988 flow->nw_dst = arp_key->arp_tip;
2989 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
2990 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
2991 "key", ntohs(arp_key->arp_op));
2992 return ODP_FIT_ERROR;
2994 flow->nw_proto = ntohs(arp_key->arp_op);
2995 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
2996 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
2999 check_start = arp_key;
3000 check_len = sizeof *arp_key;
3001 expected_bit = OVS_KEY_ATTR_ARP;
3007 if (check_len > 0) { /* Happens only when 'is_mask'. */
3008 if (!is_all_zeros(check_start, check_len) &&
3009 flow->dl_type != htons(0xffff)) {
3010 return ODP_FIT_ERROR;
3012 expected_attrs |= UINT64_C(1) << expected_bit;
3016 expected_bit = OVS_KEY_ATTR_UNSPEC;
3017 if (src_flow->nw_proto == IPPROTO_TCP
3018 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3019 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3020 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3022 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3024 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3025 const struct ovs_key_tcp *tcp_key;
3027 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3028 flow->tp_src = tcp_key->tcp_src;
3029 flow->tp_dst = tcp_key->tcp_dst;
3030 expected_bit = OVS_KEY_ATTR_TCP;
3032 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3033 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3034 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3036 } else if (src_flow->nw_proto == IPPROTO_UDP
3037 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3038 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3039 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3041 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3043 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3044 const struct ovs_key_udp *udp_key;
3046 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3047 flow->tp_src = udp_key->udp_src;
3048 flow->tp_dst = udp_key->udp_dst;
3049 expected_bit = OVS_KEY_ATTR_UDP;
3051 } else if (src_flow->nw_proto == IPPROTO_SCTP
3052 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3053 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3054 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3056 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3058 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3059 const struct ovs_key_sctp *sctp_key;
3061 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3062 flow->tp_src = sctp_key->sctp_src;
3063 flow->tp_dst = sctp_key->sctp_dst;
3064 expected_bit = OVS_KEY_ATTR_SCTP;
3066 } else if (src_flow->nw_proto == IPPROTO_ICMP
3067 && src_flow->dl_type == htons(ETH_TYPE_IP)
3068 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3070 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3072 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3073 const struct ovs_key_icmp *icmp_key;
3075 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3076 flow->tp_src = htons(icmp_key->icmp_type);
3077 flow->tp_dst = htons(icmp_key->icmp_code);
3078 expected_bit = OVS_KEY_ATTR_ICMP;
3080 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3081 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3082 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3084 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3086 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3087 const struct ovs_key_icmpv6 *icmpv6_key;
3089 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3090 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3091 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3092 expected_bit = OVS_KEY_ATTR_ICMPV6;
3093 if (src_flow->tp_dst == htons(0) &&
3094 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3095 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3097 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3099 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3100 const struct ovs_key_nd *nd_key;
3102 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3103 memcpy(&flow->nd_target, nd_key->nd_target,
3104 sizeof flow->nd_target);
3105 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3106 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3108 if (!is_all_zeros((const uint8_t *) nd_key,
3110 (flow->tp_src != htons(0xffff) ||
3111 flow->tp_dst != htons(0xffff))) {
3112 return ODP_FIT_ERROR;
3114 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3121 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3122 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3123 return ODP_FIT_ERROR;
3125 expected_attrs |= UINT64_C(1) << expected_bit;
3130 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3134 /* Parse 802.1Q header then encapsulated L3 attributes. */
3135 static enum odp_key_fitness
3136 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3137 uint64_t present_attrs, int out_of_range_attr,
3138 uint64_t expected_attrs, struct flow *flow,
3139 const struct nlattr *key, size_t key_len,
3140 const struct flow *src_flow)
3142 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3143 bool is_mask = src_flow != flow;
3145 const struct nlattr *encap
3146 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3147 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3148 enum odp_key_fitness encap_fitness;
3149 enum odp_key_fitness fitness;
3152 /* Calculate fitness of outer attributes. */
3154 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3155 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3157 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3158 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3160 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3161 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3164 fitness = check_expectations(present_attrs, out_of_range_attr,
3165 expected_attrs, key, key_len);
3167 /* Get the VLAN TCI value. */
3168 if (!is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3169 return ODP_FIT_TOO_LITTLE;
3171 tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3172 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3175 if (tci == htons(0)) {
3176 /* Corner case for a truncated 802.1Q header. */
3177 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3178 return ODP_FIT_TOO_MUCH;
3181 } else if (!(tci & htons(VLAN_CFI))) {
3182 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3183 "but CFI bit is not set", ntohs(tci));
3184 return ODP_FIT_ERROR;
3188 * Remove the TPID from dl_type since it's not the real Ethertype. */
3189 flow->dl_type = htons(0);
3190 flow->vlan_tci = tci;
3193 if (is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3196 /* Now parse the encapsulated attributes. */
3197 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3198 attrs, &present_attrs, &out_of_range_attr)) {
3199 return ODP_FIT_ERROR;
3203 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3204 return ODP_FIT_ERROR;
3206 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3207 expected_attrs, flow, key, key_len,
3210 /* The overall fitness is the worse of the outer and inner attributes. */
3211 return MAX(fitness, encap_fitness);
3214 static enum odp_key_fitness
3215 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3216 struct flow *flow, const struct flow *src_flow)
3218 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3219 uint64_t expected_attrs;
3220 uint64_t present_attrs;
3221 int out_of_range_attr;
3222 bool is_mask = src_flow != flow;
3224 memset(flow, 0, sizeof *flow);
3226 /* Parse attributes. */
3227 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3228 &out_of_range_attr)) {
3229 return ODP_FIT_ERROR;
3234 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3235 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3236 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3239 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3240 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3241 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3244 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3245 enum odp_key_fitness res;
3247 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3248 if (res == ODP_FIT_ERROR) {
3249 return ODP_FIT_ERROR;
3250 } else if (res == ODP_FIT_PERFECT) {
3251 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3255 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3256 flow->in_port.odp_port
3257 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3258 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3259 } else if (!is_mask) {
3260 flow->in_port.odp_port = ODPP_NONE;
3263 /* Ethernet header. */
3264 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3265 const struct ovs_key_ethernet *eth_key;
3267 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3268 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3269 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3271 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3275 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3278 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3279 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3281 return ODP_FIT_ERROR;
3285 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3286 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3287 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3288 expected_attrs, flow, key, key_len, src_flow);
3291 flow->vlan_tci = htons(0xffff);
3292 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3293 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3294 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3297 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3298 expected_attrs, flow, key, key_len, src_flow);
3301 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3302 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3303 * 'key' fits our expectations for what a flow key should contain.
3305 * The 'in_port' will be the datapath's understanding of the port. The
3306 * caller will need to translate with odp_port_to_ofp_port() if the
3307 * OpenFlow port is needed.
3309 * This function doesn't take the packet itself as an argument because none of
3310 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3311 * it is always possible to infer which additional attribute(s) should appear
3312 * by looking at the attributes for lower-level protocols, e.g. if the network
3313 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3314 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3315 * must be absent. */
3316 enum odp_key_fitness
3317 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3320 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3323 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3324 * structure in 'mask'. 'flow' must be a previously translated flow
3325 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3326 * 'key' fits our expectations for what a flow key should contain. */
3327 enum odp_key_fitness
3328 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3329 struct flow *mask, const struct flow *flow)
3331 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3334 /* Returns 'fitness' as a string, for use in debug messages. */
3336 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3339 case ODP_FIT_PERFECT:
3341 case ODP_FIT_TOO_MUCH:
3343 case ODP_FIT_TOO_LITTLE:
3344 return "too_little";
3352 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3353 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3354 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3355 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3356 * null, then the return value is not meaningful.) */
3358 odp_put_userspace_action(uint32_t pid,
3359 const void *userdata, size_t userdata_size,
3360 struct ofpbuf *odp_actions)
3362 size_t userdata_ofs;
3365 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3366 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3368 userdata_ofs = odp_actions->size + NLA_HDRLEN;
3370 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3371 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3374 * - The kernel rejected shorter userdata with -ERANGE.
3376 * - The kernel silently dropped userdata beyond the first 8 bytes.
3378 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3379 * separately disable features that required more than 8 bytes.) */
3380 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3381 MAX(8, userdata_size)),
3382 userdata, userdata_size);
3386 nl_msg_end_nested(odp_actions, offset);
3388 return userdata_ofs;
3392 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3393 struct ofpbuf *odp_actions)
3395 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3396 tun_key_to_attr(odp_actions, tunnel);
3397 nl_msg_end_nested(odp_actions, offset);
3400 /* The commit_odp_actions() function and its helpers. */
3403 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3404 const void *key, size_t key_size)
3406 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3407 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3408 nl_msg_end_nested(odp_actions, offset);
3412 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3413 struct ofpbuf *odp_actions)
3415 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3419 /* If any of the flow key data that ODP actions can modify are different in
3420 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3421 * 'odp_actions' that change the flow tunneling information in key from
3422 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3423 * same way. In other words, operates the same as commit_odp_actions(), but
3424 * only on tunneling information. */
3426 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3427 struct ofpbuf *odp_actions)
3429 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3430 if (flow->tunnel.ip_dst) {
3431 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3434 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3435 odp_put_tunnel_action(&base->tunnel, odp_actions);
3440 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3441 struct ofpbuf *odp_actions,
3442 struct flow_wildcards *wc)
3444 struct ovs_key_ethernet eth_key;
3446 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3447 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3451 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3452 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3454 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3455 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3457 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3458 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3460 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3461 ð_key, sizeof(eth_key));
3465 pop_vlan(struct flow *base,
3466 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3468 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3470 if (base->vlan_tci & htons(VLAN_CFI)) {
3471 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3477 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3478 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3480 if (base->vlan_tci == vlan_tci) {
3484 pop_vlan(base, odp_actions, wc);
3485 if (vlan_tci & htons(VLAN_CFI)) {
3486 struct ovs_action_push_vlan vlan;
3488 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3489 vlan.vlan_tci = vlan_tci;
3490 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3491 &vlan, sizeof vlan);
3493 base->vlan_tci = vlan_tci;
3497 commit_mpls_action(const struct flow *flow, struct flow *base,
3498 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3500 int base_n = flow_count_mpls_labels(base, wc);
3501 int flow_n = flow_count_mpls_labels(flow, wc);
3502 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3505 while (base_n > common_n) {
3506 if (base_n - 1 == common_n && flow_n > common_n) {
3507 /* If there is only one more LSE in base than there are common
3508 * between base and flow; and flow has at least one more LSE than
3509 * is common then the topmost LSE of base may be updated using
3511 struct ovs_key_mpls mpls_key;
3513 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3514 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3515 &mpls_key, sizeof mpls_key);
3516 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3519 /* Otherwise, if there more LSEs in base than are common between
3520 * base and flow then pop the topmost one. */
3524 /* If all the LSEs are to be popped and this is not the outermost
3525 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3526 * POP_MPLS action instead of flow->dl_type.
3528 * This is because the POP_MPLS action requires its ethertype
3529 * argument to be an MPLS ethernet type but in this case
3530 * flow->dl_type will be a non-MPLS ethernet type.
3532 * When the final POP_MPLS action occurs it use flow->dl_type and
3533 * the and the resulting packet will have the desired dl_type. */
3534 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3535 dl_type = htons(ETH_TYPE_MPLS);
3537 dl_type = flow->dl_type;
3539 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3540 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3546 /* If, after the above popping and setting, there are more LSEs in flow
3547 * than base then some LSEs need to be pushed. */
3548 while (base_n < flow_n) {
3549 struct ovs_action_push_mpls *mpls;
3551 mpls = nl_msg_put_unspec_zero(odp_actions,
3552 OVS_ACTION_ATTR_PUSH_MPLS,
3554 mpls->mpls_ethertype = flow->dl_type;
3555 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3556 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3557 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3563 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3564 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3566 struct ovs_key_ipv4 ipv4_key;
3568 if (base->nw_src == flow->nw_src &&
3569 base->nw_dst == flow->nw_dst &&
3570 base->nw_tos == flow->nw_tos &&
3571 base->nw_ttl == flow->nw_ttl &&
3572 base->nw_frag == flow->nw_frag) {
3576 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3577 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3578 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3579 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3580 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3581 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3583 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3584 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3585 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3586 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3587 ipv4_key.ipv4_proto = base->nw_proto;
3588 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3590 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3591 &ipv4_key, sizeof(ipv4_key));
3595 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3596 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3598 struct ovs_key_ipv6 ipv6_key;
3600 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3601 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3602 base->ipv6_label == flow->ipv6_label &&
3603 base->nw_tos == flow->nw_tos &&
3604 base->nw_ttl == flow->nw_ttl &&
3605 base->nw_frag == flow->nw_frag) {
3609 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3610 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3611 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3612 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3613 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3614 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3615 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3617 base->ipv6_src = flow->ipv6_src;
3618 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3619 base->ipv6_dst = flow->ipv6_dst;
3620 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3622 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3623 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3624 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3625 ipv6_key.ipv6_proto = base->nw_proto;
3626 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3628 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3629 &ipv6_key, sizeof(ipv6_key));
3632 static enum slow_path_reason
3633 commit_set_arp_action(const struct flow *flow, struct flow *base,
3634 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3636 struct ovs_key_arp arp_key;
3638 if (base->nw_src == flow->nw_src &&
3639 base->nw_dst == flow->nw_dst &&
3640 base->nw_proto == flow->nw_proto &&
3641 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3642 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3646 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3647 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3648 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3649 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3650 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3652 base->nw_src = flow->nw_src;
3653 base->nw_dst = flow->nw_dst;
3654 base->nw_proto = flow->nw_proto;
3655 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3656 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3658 arp_key.arp_sip = base->nw_src;
3659 arp_key.arp_tip = base->nw_dst;
3660 arp_key.arp_op = htons(base->nw_proto);
3661 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3662 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3664 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3669 static enum slow_path_reason
3670 commit_set_nw_action(const struct flow *flow, struct flow *base,
3671 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3673 /* Check if 'flow' really has an L3 header. */
3674 if (!flow->nw_proto) {
3678 switch (ntohs(base->dl_type)) {
3680 commit_set_ipv4_action(flow, base, odp_actions, wc);
3684 commit_set_ipv6_action(flow, base, odp_actions, wc);
3688 return commit_set_arp_action(flow, base, odp_actions, wc);
3695 commit_set_port_action(const struct flow *flow, struct flow *base,
3696 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3698 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3702 if (base->tp_src == flow->tp_src &&
3703 base->tp_dst == flow->tp_dst) {
3707 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3708 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3710 if (flow->nw_proto == IPPROTO_TCP) {
3711 struct ovs_key_tcp port_key;
3713 port_key.tcp_src = base->tp_src = flow->tp_src;
3714 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3716 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3717 &port_key, sizeof(port_key));
3719 } else if (flow->nw_proto == IPPROTO_UDP) {
3720 struct ovs_key_udp port_key;
3722 port_key.udp_src = base->tp_src = flow->tp_src;
3723 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3725 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3726 &port_key, sizeof(port_key));
3727 } else if (flow->nw_proto == IPPROTO_SCTP) {
3728 struct ovs_key_sctp port_key;
3730 port_key.sctp_src = base->tp_src = flow->tp_src;
3731 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3733 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3734 &port_key, sizeof(port_key));
3739 commit_set_priority_action(const struct flow *flow, struct flow *base,
3740 struct ofpbuf *odp_actions,
3741 struct flow_wildcards *wc)
3743 if (base->skb_priority == flow->skb_priority) {
3747 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3748 base->skb_priority = flow->skb_priority;
3750 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3751 &base->skb_priority, sizeof(base->skb_priority));
3755 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3756 struct ofpbuf *odp_actions,
3757 struct flow_wildcards *wc)
3759 if (base->pkt_mark == flow->pkt_mark) {
3763 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3764 base->pkt_mark = flow->pkt_mark;
3766 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3769 /* If any of the flow key data that ODP actions can modify are different in
3770 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3771 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3772 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3773 * in addition to this function if needed. Sets fields in 'wc' that are
3774 * used as part of the action.
3776 * Returns a reason to force processing the flow's packets into the userspace
3777 * slow path, if there is one, otherwise 0. */
3778 enum slow_path_reason
3779 commit_odp_actions(const struct flow *flow, struct flow *base,
3780 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3782 enum slow_path_reason slow;
3784 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3785 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3786 commit_set_port_action(flow, base, odp_actions, wc);
3787 commit_mpls_action(flow, base, odp_actions, wc);
3788 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3789 commit_set_priority_action(flow, base, odp_actions, wc);
3790 commit_set_pkt_mark_action(flow, base, odp_actions, wc);