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_RECIRC: return sizeof(uint32_t);
83 case OVS_ACTION_ATTR_HASH: return sizeof(struct ovs_action_hash);
84 case OVS_ACTION_ATTR_SET: return -2;
85 case OVS_ACTION_ATTR_SAMPLE: return -2;
87 case OVS_ACTION_ATTR_UNSPEC:
88 case __OVS_ACTION_ATTR_MAX:
95 /* Returns a string form of 'attr'. The return value is either a statically
96 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
97 * should be at least OVS_KEY_ATTR_BUFSIZE. */
98 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
100 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
103 case OVS_KEY_ATTR_UNSPEC: return "unspec";
104 case OVS_KEY_ATTR_ENCAP: return "encap";
105 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
106 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
107 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
108 case OVS_KEY_ATTR_IN_PORT: return "in_port";
109 case OVS_KEY_ATTR_ETHERNET: return "eth";
110 case OVS_KEY_ATTR_VLAN: return "vlan";
111 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
112 case OVS_KEY_ATTR_IPV4: return "ipv4";
113 case OVS_KEY_ATTR_IPV6: return "ipv6";
114 case OVS_KEY_ATTR_TCP: return "tcp";
115 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
116 case OVS_KEY_ATTR_UDP: return "udp";
117 case OVS_KEY_ATTR_SCTP: return "sctp";
118 case OVS_KEY_ATTR_ICMP: return "icmp";
119 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
120 case OVS_KEY_ATTR_ARP: return "arp";
121 case OVS_KEY_ATTR_ND: return "nd";
122 case OVS_KEY_ATTR_MPLS: return "mpls";
123 case OVS_KEY_ATTR_DP_HASH: return "dp_hash";
124 case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id";
126 case __OVS_KEY_ATTR_MAX:
128 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
134 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
136 size_t len = nl_attr_get_size(a);
138 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
140 const uint8_t *unspec;
143 unspec = nl_attr_get(a);
144 for (i = 0; i < len; i++) {
145 ds_put_char(ds, i ? ' ': '(');
146 ds_put_format(ds, "%02x", unspec[i]);
148 ds_put_char(ds, ')');
153 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
155 static const struct nl_policy ovs_sample_policy[] = {
156 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
157 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
159 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
161 const struct nlattr *nla_acts;
164 ds_put_cstr(ds, "sample");
166 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
167 ds_put_cstr(ds, "(error)");
171 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
174 ds_put_format(ds, "(sample=%.1f%%,", percentage);
176 ds_put_cstr(ds, "actions(");
177 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
178 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
179 format_odp_actions(ds, nla_acts, len);
180 ds_put_format(ds, "))");
184 slow_path_reason_to_string(uint32_t reason)
186 switch ((enum slow_path_reason) reason) {
187 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
196 slow_path_reason_to_explanation(enum slow_path_reason reason)
199 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
208 parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
219 while (s[n] != ')') {
220 unsigned long long int flags;
224 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
225 n += n0 + (s[n + n0] == ',');
230 for (bit = 1; bit; bit <<= 1) {
231 const char *name = bit_to_string(bit);
239 if (!strncmp(s + n, name, len) &&
240 (s[n + len] == ',' || s[n + len] == ')')) {
242 n += len + (s[n + len] == ',');
258 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
260 static const struct nl_policy ovs_userspace_policy[] = {
261 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
262 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
264 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
267 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
268 const struct nlattr *userdata_attr;
269 const struct nlattr *tunnel_out_port_attr;
271 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
272 ds_put_cstr(ds, "userspace(error)");
276 ds_put_format(ds, "userspace(pid=%"PRIu32,
277 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
279 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
282 const uint8_t *userdata = nl_attr_get(userdata_attr);
283 size_t userdata_len = nl_attr_get_size(userdata_attr);
284 bool userdata_unspec = true;
285 union user_action_cookie cookie;
287 if (userdata_len >= sizeof cookie.type
288 && userdata_len <= sizeof cookie) {
290 memset(&cookie, 0, sizeof cookie);
291 memcpy(&cookie, userdata, userdata_len);
293 userdata_unspec = false;
295 if (userdata_len == sizeof cookie.sflow
296 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
297 ds_put_format(ds, ",sFlow("
298 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
299 vlan_tci_to_vid(cookie.sflow.vlan_tci),
300 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
301 cookie.sflow.output);
302 } else if (userdata_len == sizeof cookie.slow_path
303 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
304 ds_put_cstr(ds, ",slow_path(");
305 format_flags(ds, slow_path_reason_to_string,
306 cookie.slow_path.reason, ',');
307 ds_put_format(ds, ")");
308 } else if (userdata_len == sizeof cookie.flow_sample
309 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
310 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
311 ",collector_set_id=%"PRIu32
312 ",obs_domain_id=%"PRIu32
313 ",obs_point_id=%"PRIu32")",
314 cookie.flow_sample.probability,
315 cookie.flow_sample.collector_set_id,
316 cookie.flow_sample.obs_domain_id,
317 cookie.flow_sample.obs_point_id);
318 } else if (userdata_len >= sizeof cookie.ipfix
319 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
320 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
321 cookie.ipfix.output_odp_port);
323 userdata_unspec = true;
327 if (userdata_unspec) {
329 ds_put_format(ds, ",userdata(");
330 for (i = 0; i < userdata_len; i++) {
331 ds_put_format(ds, "%02x", userdata[i]);
333 ds_put_char(ds, ')');
337 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
338 if (tunnel_out_port_attr) {
339 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
340 nl_attr_get_u32(tunnel_out_port_attr));
343 ds_put_char(ds, ')');
347 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
349 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
350 vlan_tci_to_vid(vlan_tci),
351 vlan_tci_to_pcp(vlan_tci));
352 if (!(vlan_tci & htons(VLAN_CFI))) {
353 ds_put_cstr(ds, ",cfi=0");
358 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
360 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
361 mpls_lse_to_label(mpls_lse),
362 mpls_lse_to_tc(mpls_lse),
363 mpls_lse_to_ttl(mpls_lse),
364 mpls_lse_to_bos(mpls_lse));
368 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
369 const struct ovs_key_mpls *mpls_mask, int n)
372 ovs_be32 key = mpls_key->mpls_lse;
374 if (mpls_mask == NULL) {
375 format_mpls_lse(ds, key);
377 ovs_be32 mask = mpls_mask->mpls_lse;
379 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
380 mpls_lse_to_label(key), mpls_lse_to_label(mask),
381 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
382 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
383 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
388 for (i = 0; i < n; i++) {
389 ds_put_format(ds, "lse%d=%#"PRIx32,
390 i, ntohl(mpls_key[i].mpls_lse));
392 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
394 ds_put_char(ds, ',');
401 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
403 ds_put_format(ds, "recirc(%"PRIu32")", recirc_id);
407 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
409 ds_put_format(ds, "hash(");
411 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
412 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
414 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
417 ds_put_format(ds, ")");
421 format_odp_action(struct ds *ds, const struct nlattr *a)
424 enum ovs_action_attr type = nl_attr_type(a);
425 const struct ovs_action_push_vlan *vlan;
427 expected_len = odp_action_len(nl_attr_type(a));
428 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
429 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
430 nl_attr_get_size(a), expected_len);
431 format_generic_odp_action(ds, a);
436 case OVS_ACTION_ATTR_OUTPUT:
437 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
439 case OVS_ACTION_ATTR_USERSPACE:
440 format_odp_userspace_action(ds, a);
442 case OVS_ACTION_ATTR_RECIRC:
443 format_odp_recirc_action(ds, nl_attr_get_u32(a));
445 case OVS_ACTION_ATTR_HASH:
446 format_odp_hash_action(ds, nl_attr_get(a));
448 case OVS_ACTION_ATTR_SET:
449 ds_put_cstr(ds, "set(");
450 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
451 ds_put_cstr(ds, ")");
453 case OVS_ACTION_ATTR_PUSH_VLAN:
454 vlan = nl_attr_get(a);
455 ds_put_cstr(ds, "push_vlan(");
456 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
457 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
459 format_vlan_tci(ds, vlan->vlan_tci);
460 ds_put_char(ds, ')');
462 case OVS_ACTION_ATTR_POP_VLAN:
463 ds_put_cstr(ds, "pop_vlan");
465 case OVS_ACTION_ATTR_PUSH_MPLS: {
466 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
467 ds_put_cstr(ds, "push_mpls(");
468 format_mpls_lse(ds, mpls->mpls_lse);
469 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
472 case OVS_ACTION_ATTR_POP_MPLS: {
473 ovs_be16 ethertype = nl_attr_get_be16(a);
474 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
477 case OVS_ACTION_ATTR_SAMPLE:
478 format_odp_sample_action(ds, a);
480 case OVS_ACTION_ATTR_UNSPEC:
481 case __OVS_ACTION_ATTR_MAX:
483 format_generic_odp_action(ds, a);
489 format_odp_actions(struct ds *ds, const struct nlattr *actions,
493 const struct nlattr *a;
496 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
498 ds_put_char(ds, ',');
500 format_odp_action(ds, a);
505 if (left == actions_len) {
506 ds_put_cstr(ds, "<empty>");
508 ds_put_format(ds, ",***%u leftover bytes*** (", left);
509 for (i = 0; i < left; i++) {
510 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
512 ds_put_char(ds, ')');
515 ds_put_cstr(ds, "drop");
519 /* Separate out parse_odp_userspace_action() function. */
521 parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
524 union user_action_cookie cookie;
526 odp_port_t tunnel_out_port;
528 void *user_data = NULL;
529 size_t user_data_size = 0;
531 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
537 uint32_t probability;
538 uint32_t collector_set_id;
539 uint32_t obs_domain_id;
540 uint32_t obs_point_id;
543 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
544 "pcp=%i,output=%"SCNi32")%n",
545 &vid, &pcp, &output, &n1)) {
549 tci = vid | (pcp << VLAN_PCP_SHIFT);
554 cookie.type = USER_ACTION_COOKIE_SFLOW;
555 cookie.sflow.vlan_tci = htons(tci);
556 cookie.sflow.output = output;
558 user_data_size = sizeof cookie.sflow;
559 } else if (ovs_scan(&s[n], ",slow_path%n",
564 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
565 cookie.slow_path.unused = 0;
566 cookie.slow_path.reason = 0;
568 res = parse_flags(&s[n], slow_path_reason_to_string,
569 &cookie.slow_path.reason);
576 user_data_size = sizeof cookie.slow_path;
577 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
578 "collector_set_id=%"SCNi32","
579 "obs_domain_id=%"SCNi32","
580 "obs_point_id=%"SCNi32")%n",
581 &probability, &collector_set_id,
582 &obs_domain_id, &obs_point_id, &n1)) {
585 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
586 cookie.flow_sample.probability = probability;
587 cookie.flow_sample.collector_set_id = collector_set_id;
588 cookie.flow_sample.obs_domain_id = obs_domain_id;
589 cookie.flow_sample.obs_point_id = obs_point_id;
591 user_data_size = sizeof cookie.flow_sample;
592 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
595 cookie.type = USER_ACTION_COOKIE_IPFIX;
596 cookie.ipfix.output_odp_port = u32_to_odp(output);
598 user_data_size = sizeof cookie.ipfix;
599 } else if (ovs_scan(&s[n], ",userdata(%n",
604 ofpbuf_init(&buf, 16);
605 end = ofpbuf_put_hex(&buf, &s[n], NULL);
609 user_data = ofpbuf_data(&buf);
610 user_data_size = ofpbuf_size(&buf);
617 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
618 &tunnel_out_port, &n1)) {
619 odp_put_userspace_action(pid, user_data, user_data_size, tunnel_out_port, actions);
621 } else if (s[n] == ')') {
622 odp_put_userspace_action(pid, user_data, user_data_size, ODPP_NONE, actions);
631 parse_odp_action(const char *s, const struct simap *port_names,
632 struct ofpbuf *actions)
638 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
639 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
645 int len = strcspn(s, delimiters);
646 struct simap_node *node;
648 node = simap_find_len(port_names, s, len);
650 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
655 if (!strncmp(s, "userspace(", 10)) {
656 return parse_odp_userspace_action(s, actions);
659 if (!strncmp(s, "set(", 4)) {
663 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
664 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
668 if (s[retval + 4] != ')') {
671 nl_msg_end_nested(actions, start_ofs);
676 struct ovs_action_push_vlan push;
677 int tpid = ETH_TYPE_VLAN;
682 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
683 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
684 &vid, &pcp, &cfi, &n)
685 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
686 &tpid, &vid, &pcp, &n)
687 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
688 &tpid, &vid, &pcp, &cfi, &n)) {
689 push.vlan_tpid = htons(tpid);
690 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
691 | (pcp << VLAN_PCP_SHIFT)
692 | (cfi ? VLAN_CFI : 0));
693 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
700 if (!strncmp(s, "pop_vlan", 8)) {
701 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
709 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
710 && percentage >= 0. && percentage <= 100.0) {
711 size_t sample_ofs, actions_ofs;
714 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
715 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
716 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
717 (probability <= 0 ? 0
718 : probability >= UINT32_MAX ? UINT32_MAX
721 actions_ofs = nl_msg_start_nested(actions,
722 OVS_SAMPLE_ATTR_ACTIONS);
726 n += strspn(s + n, delimiters);
731 retval = parse_odp_action(s + n, port_names, actions);
737 nl_msg_end_nested(actions, actions_ofs);
738 nl_msg_end_nested(actions, sample_ofs);
740 return s[n + 1] == ')' ? n + 2 : -EINVAL;
747 /* Parses the string representation of datapath actions, in the format output
748 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
749 * value. On success, the ODP actions are appended to 'actions' as a series of
750 * Netlink attributes. On failure, no data is appended to 'actions'. Either
751 * way, 'actions''s data might be reallocated. */
753 odp_actions_from_string(const char *s, const struct simap *port_names,
754 struct ofpbuf *actions)
758 if (!strcasecmp(s, "drop")) {
762 old_size = ofpbuf_size(actions);
766 s += strspn(s, delimiters);
771 retval = parse_odp_action(s, port_names, actions);
772 if (retval < 0 || !strchr(delimiters, s[retval])) {
773 ofpbuf_set_size(actions, old_size);
782 /* Returns the correct length of the payload for a flow key attribute of the
783 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
784 * is variable length. */
786 odp_flow_key_attr_len(uint16_t type)
788 if (type > OVS_KEY_ATTR_MAX) {
792 switch ((enum ovs_key_attr) type) {
793 case OVS_KEY_ATTR_ENCAP: return -2;
794 case OVS_KEY_ATTR_PRIORITY: return 4;
795 case OVS_KEY_ATTR_SKB_MARK: return 4;
796 case OVS_KEY_ATTR_DP_HASH: return 4;
797 case OVS_KEY_ATTR_RECIRC_ID: return 4;
798 case OVS_KEY_ATTR_TUNNEL: return -2;
799 case OVS_KEY_ATTR_IN_PORT: return 4;
800 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
801 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
802 case OVS_KEY_ATTR_ETHERTYPE: return 2;
803 case OVS_KEY_ATTR_MPLS: return -2;
804 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
805 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
806 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
807 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
808 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
809 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
810 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
811 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
812 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
813 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
815 case OVS_KEY_ATTR_UNSPEC:
816 case __OVS_KEY_ATTR_MAX:
824 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
826 size_t len = nl_attr_get_size(a);
828 const uint8_t *unspec;
831 unspec = nl_attr_get(a);
832 for (i = 0; i < len; i++) {
834 ds_put_char(ds, ' ');
836 ds_put_format(ds, "%02x", unspec[i]);
842 ovs_frag_type_to_string(enum ovs_frag_type type)
845 case OVS_FRAG_TYPE_NONE:
847 case OVS_FRAG_TYPE_FIRST:
849 case OVS_FRAG_TYPE_LATER:
851 case __OVS_FRAG_TYPE_MAX:
858 tunnel_key_attr_len(int type)
861 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
862 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
863 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
864 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
865 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
866 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
867 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
868 case OVS_TUNNEL_KEY_ATTR_TP_SRC: return 2;
869 case OVS_TUNNEL_KEY_ATTR_TP_DST: return 2;
870 case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
871 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
872 case __OVS_TUNNEL_KEY_ATTR_MAX:
878 #define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
880 parse_geneve_opts(const struct nlattr *attr)
882 int opts_len = nl_attr_get_size(attr);
883 const struct geneve_opt *opt = nl_attr_get(attr);
885 while (opts_len > 0) {
888 if (opts_len < sizeof(*opt)) {
892 len = sizeof(*opt) + opt->length * 4;
893 if (len > opts_len) {
897 switch (GENEVE_OPT(opt->opt_class, opt->type)) {
899 if (opt->type & GENEVE_CRIT_OPT_TYPE) {
904 opt = opt + len / sizeof(*opt);
912 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
915 const struct nlattr *a;
917 bool unknown = false;
919 NL_NESTED_FOR_EACH(a, left, attr) {
920 uint16_t type = nl_attr_type(a);
921 size_t len = nl_attr_get_size(a);
922 int expected_len = tunnel_key_attr_len(type);
924 if (len != expected_len && expected_len >= 0) {
925 return ODP_FIT_ERROR;
929 case OVS_TUNNEL_KEY_ATTR_ID:
930 tun->tun_id = nl_attr_get_be64(a);
931 tun->flags |= FLOW_TNL_F_KEY;
933 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
934 tun->ip_src = nl_attr_get_be32(a);
936 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
937 tun->ip_dst = nl_attr_get_be32(a);
939 case OVS_TUNNEL_KEY_ATTR_TOS:
940 tun->ip_tos = nl_attr_get_u8(a);
942 case OVS_TUNNEL_KEY_ATTR_TTL:
943 tun->ip_ttl = nl_attr_get_u8(a);
946 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
947 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
949 case OVS_TUNNEL_KEY_ATTR_CSUM:
950 tun->flags |= FLOW_TNL_F_CSUM;
952 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
953 tun->tp_src = nl_attr_get_be16(a);
955 case OVS_TUNNEL_KEY_ATTR_TP_DST:
956 tun->tp_dst = nl_attr_get_be16(a);
958 case OVS_TUNNEL_KEY_ATTR_OAM:
959 tun->flags |= FLOW_TNL_F_OAM;
961 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
962 if (parse_geneve_opts(a)) {
963 return ODP_FIT_ERROR;
965 /* It is necessary to reproduce options exactly (including order)
966 * so it's easiest to just echo them back. */
971 /* Allow this to show up as unexpected, if there are unknown
972 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
979 return ODP_FIT_ERROR;
982 return ODP_FIT_TOO_MUCH;
984 return ODP_FIT_PERFECT;
988 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
992 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
994 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
995 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
996 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
998 if (tun_key->ip_src) {
999 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1001 if (tun_key->ip_dst) {
1002 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1004 if (tun_key->ip_tos) {
1005 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1007 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1008 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1009 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1011 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1012 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1014 if (tun_key->tp_src) {
1015 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1017 if (tun_key->tp_dst) {
1018 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1020 if (tun_key->flags & FLOW_TNL_F_OAM) {
1021 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1024 nl_msg_end_nested(a, tun_key_ofs);
1028 odp_mask_attr_is_wildcard(const struct nlattr *ma)
1030 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1034 odp_mask_attr_is_exact(const struct nlattr *ma)
1036 bool is_exact = false;
1037 enum ovs_key_attr attr = nl_attr_type(ma);
1039 if (attr == OVS_KEY_ATTR_TUNNEL) {
1040 /* XXX this is a hack for now. Should change
1041 * the exact match dection to per field
1042 * instead of per attribute.
1044 struct flow_tnl tun_mask;
1045 memset(&tun_mask, 0, sizeof tun_mask);
1046 odp_tun_key_from_attr(ma, &tun_mask);
1047 if (tun_mask.flags == (FLOW_TNL_F_KEY
1048 | FLOW_TNL_F_DONT_FRAGMENT
1050 | FLOW_TNL_F_OAM)) {
1051 /* The flags are exact match, check the remaining fields. */
1052 tun_mask.flags = 0xffff;
1053 is_exact = is_all_ones((uint8_t *)&tun_mask,
1054 offsetof(struct flow_tnl, ip_ttl));
1057 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
1064 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1067 struct odp_portno_names *odp_portno_names;
1069 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1070 odp_portno_names->port_no = port_no;
1071 odp_portno_names->name = xstrdup(port_name);
1072 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1073 hash_odp_port(port_no));
1077 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1079 struct odp_portno_names *odp_portno_names;
1081 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1082 hash_odp_port(port_no), portno_names) {
1083 if (odp_portno_names->port_no == port_no) {
1084 return odp_portno_names->name;
1091 odp_portno_names_destroy(struct hmap *portno_names)
1093 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1094 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1095 hmap_node, portno_names) {
1096 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1097 free(odp_portno_names->name);
1098 free(odp_portno_names);
1103 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1104 const struct hmap *portno_names, struct ds *ds,
1107 struct flow_tnl tun_key;
1108 enum ovs_key_attr attr = nl_attr_type(a);
1109 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1113 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1115 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1118 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1119 if (expected_len != -2) {
1120 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1121 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1123 if (bad_key_len || bad_mask_len) {
1125 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1126 nl_attr_get_size(a), expected_len);
1128 format_generic_odp_key(a, ds);
1130 ds_put_char(ds, '/');
1132 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1133 nl_attr_get_size(ma), expected_len);
1135 format_generic_odp_key(ma, ds);
1137 ds_put_char(ds, ')');
1143 ds_put_char(ds, '(');
1145 case OVS_KEY_ATTR_ENCAP:
1146 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1147 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1148 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1150 } else if (nl_attr_get_size(a)) {
1151 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1156 case OVS_KEY_ATTR_PRIORITY:
1157 case OVS_KEY_ATTR_SKB_MARK:
1158 case OVS_KEY_ATTR_DP_HASH:
1159 case OVS_KEY_ATTR_RECIRC_ID:
1160 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1162 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1166 case OVS_KEY_ATTR_TUNNEL:
1167 memset(&tun_key, 0, sizeof tun_key);
1168 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1169 ds_put_format(ds, "error");
1170 } else if (!is_exact) {
1171 struct flow_tnl tun_mask;
1173 memset(&tun_mask, 0, sizeof tun_mask);
1174 odp_tun_key_from_attr(ma, &tun_mask);
1175 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1176 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1177 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1179 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1180 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1181 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1182 tun_key.ip_tos, tun_mask.ip_tos,
1183 tun_key.ip_ttl, tun_mask.ip_ttl);
1185 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1187 /* XXX This code is correct, but enabling it would break the unit
1188 test. Disable it for now until the input parser is fixed.
1190 ds_put_char(ds, '/');
1191 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1193 ds_put_char(ds, ')');
1195 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1196 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1197 ntohll(tun_key.tun_id),
1198 IP_ARGS(tun_key.ip_src),
1199 IP_ARGS(tun_key.ip_dst),
1200 tun_key.ip_tos, tun_key.ip_ttl);
1202 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1203 ds_put_char(ds, ')');
1207 case OVS_KEY_ATTR_IN_PORT:
1208 if (portno_names && verbose && is_exact) {
1209 char *name = odp_portno_names_get(portno_names,
1210 u32_to_odp(nl_attr_get_u32(a)));
1212 ds_put_format(ds, "%s", name);
1214 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1217 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1219 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1224 case OVS_KEY_ATTR_ETHERNET:
1226 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1227 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1229 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1230 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1231 ETH_ADDR_ARGS(eth_key->eth_src),
1232 ETH_ADDR_ARGS(eth_mask->eth_src),
1233 ETH_ADDR_ARGS(eth_key->eth_dst),
1234 ETH_ADDR_ARGS(eth_mask->eth_dst));
1236 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1238 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1239 ETH_ADDR_ARGS(eth_key->eth_src),
1240 ETH_ADDR_ARGS(eth_key->eth_dst));
1244 case OVS_KEY_ATTR_VLAN:
1246 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1248 ovs_be16 mask = nl_attr_get_be16(ma);
1249 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1250 vlan_tci_to_vid(vlan_tci),
1251 vlan_tci_to_vid(mask),
1252 vlan_tci_to_pcp(vlan_tci),
1253 vlan_tci_to_pcp(mask),
1254 vlan_tci_to_cfi(vlan_tci),
1255 vlan_tci_to_cfi(mask));
1257 format_vlan_tci(ds, vlan_tci);
1262 case OVS_KEY_ATTR_MPLS: {
1263 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1264 const struct ovs_key_mpls *mpls_mask = NULL;
1265 size_t size = nl_attr_get_size(a);
1267 if (!size || size % sizeof *mpls_key) {
1268 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1269 nl_attr_get_size(a));
1273 mpls_mask = nl_attr_get(ma);
1274 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1275 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1276 "mask length %"PRIuSIZE")",
1277 nl_attr_get_size(a), nl_attr_get_size(ma));
1281 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1285 case OVS_KEY_ATTR_ETHERTYPE:
1286 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1288 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1292 case OVS_KEY_ATTR_IPV4:
1294 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1295 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1297 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1298 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1299 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1300 IP_ARGS(ipv4_key->ipv4_src),
1301 IP_ARGS(ipv4_mask->ipv4_src),
1302 IP_ARGS(ipv4_key->ipv4_dst),
1303 IP_ARGS(ipv4_mask->ipv4_dst),
1304 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1305 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1306 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1307 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1308 ipv4_mask->ipv4_frag);
1310 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1312 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1313 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1314 IP_ARGS(ipv4_key->ipv4_src),
1315 IP_ARGS(ipv4_key->ipv4_dst),
1316 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1318 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1322 case OVS_KEY_ATTR_IPV6:
1324 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1325 char src_str[INET6_ADDRSTRLEN];
1326 char dst_str[INET6_ADDRSTRLEN];
1327 char src_mask[INET6_ADDRSTRLEN];
1328 char dst_mask[INET6_ADDRSTRLEN];
1330 ipv6_key = nl_attr_get(a);
1331 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1332 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1334 ipv6_mask = nl_attr_get(ma);
1335 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1336 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1338 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1339 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1340 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1341 src_str, src_mask, dst_str, dst_mask,
1342 ntohl(ipv6_key->ipv6_label),
1343 ntohl(ipv6_mask->ipv6_label),
1344 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1345 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1346 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1347 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1348 ipv6_mask->ipv6_frag);
1350 const struct ovs_key_ipv6 *ipv6_key;
1351 char src_str[INET6_ADDRSTRLEN];
1352 char dst_str[INET6_ADDRSTRLEN];
1354 ipv6_key = nl_attr_get(a);
1355 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1356 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1358 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1359 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1360 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1361 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1362 ipv6_key->ipv6_hlimit,
1363 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1367 case OVS_KEY_ATTR_TCP:
1369 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1370 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1372 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1373 ",dst=%"PRIu16"/%#"PRIx16,
1374 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1375 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1377 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1379 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1380 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1384 case OVS_KEY_ATTR_TCP_FLAGS:
1385 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1387 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1391 case OVS_KEY_ATTR_UDP:
1393 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1394 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1396 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1397 ",dst=%"PRIu16"/%#"PRIx16,
1398 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1399 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1401 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1403 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1404 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1408 case OVS_KEY_ATTR_SCTP:
1410 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1411 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1413 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1414 ",dst=%"PRIu16"/%#"PRIx16,
1415 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1416 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1418 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1420 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1421 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1425 case OVS_KEY_ATTR_ICMP:
1427 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1428 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1430 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1431 icmp_key->icmp_type, icmp_mask->icmp_type,
1432 icmp_key->icmp_code, icmp_mask->icmp_code);
1434 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1436 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1437 icmp_key->icmp_type, icmp_key->icmp_code);
1441 case OVS_KEY_ATTR_ICMPV6:
1443 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1444 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1446 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1447 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1448 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1450 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1452 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1453 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1457 case OVS_KEY_ATTR_ARP:
1459 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1460 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1462 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1463 ",op=%"PRIu16"/%#"PRIx16
1464 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1465 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1466 IP_ARGS(arp_key->arp_sip),
1467 IP_ARGS(arp_mask->arp_sip),
1468 IP_ARGS(arp_key->arp_tip),
1469 IP_ARGS(arp_mask->arp_tip),
1470 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1471 ETH_ADDR_ARGS(arp_key->arp_sha),
1472 ETH_ADDR_ARGS(arp_mask->arp_sha),
1473 ETH_ADDR_ARGS(arp_key->arp_tha),
1474 ETH_ADDR_ARGS(arp_mask->arp_tha));
1476 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1478 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1479 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1480 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1481 ntohs(arp_key->arp_op),
1482 ETH_ADDR_ARGS(arp_key->arp_sha),
1483 ETH_ADDR_ARGS(arp_key->arp_tha));
1487 case OVS_KEY_ATTR_ND: {
1488 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1489 char target[INET6_ADDRSTRLEN];
1491 nd_key = nl_attr_get(a);
1493 nd_mask = nl_attr_get(ma);
1496 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1497 ds_put_format(ds, "target=%s", target);
1499 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1500 ds_put_format(ds, "/%s", target);
1503 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1504 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1505 ETH_ADDR_ARGS(nd_key->nd_sll));
1507 ds_put_format(ds, "/"ETH_ADDR_FMT,
1508 ETH_ADDR_ARGS(nd_mask->nd_sll));
1511 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1512 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1513 ETH_ADDR_ARGS(nd_key->nd_tll));
1515 ds_put_format(ds, "/"ETH_ADDR_FMT,
1516 ETH_ADDR_ARGS(nd_mask->nd_tll));
1521 case OVS_KEY_ATTR_UNSPEC:
1522 case __OVS_KEY_ATTR_MAX:
1524 format_generic_odp_key(a, ds);
1526 ds_put_char(ds, '/');
1527 format_generic_odp_key(ma, ds);
1531 ds_put_char(ds, ')');
1534 static struct nlattr *
1535 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1537 const struct nlattr *a;
1539 int type = nl_attr_type(key);
1540 int size = nl_attr_get_size(key);
1542 if (odp_flow_key_attr_len(type) >=0) {
1543 nl_msg_put_unspec_zero(ofp, type, size);
1547 nested_mask = nl_msg_start_nested(ofp, type);
1548 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1549 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1551 nl_msg_end_nested(ofp, nested_mask);
1554 return ofpbuf_base(ofp);
1557 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1558 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1559 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1560 * non-null and 'verbose' is true, translates odp port number to its name. */
1562 odp_flow_format(const struct nlattr *key, size_t key_len,
1563 const struct nlattr *mask, size_t mask_len,
1564 const struct hmap *portno_names, struct ds *ds, bool verbose)
1567 const struct nlattr *a;
1569 bool has_ethtype_key = false;
1570 const struct nlattr *ma = NULL;
1572 bool first_field = true;
1574 ofpbuf_init(&ofp, 100);
1575 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1576 bool is_nested_attr;
1577 bool is_wildcard = false;
1578 int attr_type = nl_attr_type(a);
1580 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1581 has_ethtype_key = true;
1584 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1586 if (mask && mask_len) {
1587 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1588 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1591 if (verbose || !is_wildcard || is_nested_attr) {
1592 if (is_wildcard && !ma) {
1593 ma = generate_all_wildcard_mask(&ofp, a);
1596 ds_put_char(ds, ',');
1598 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1599 first_field = false;
1603 ofpbuf_uninit(&ofp);
1608 if (left == key_len) {
1609 ds_put_cstr(ds, "<empty>");
1611 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1612 for (i = 0; i < left; i++) {
1613 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1615 ds_put_char(ds, ')');
1617 if (!has_ethtype_key) {
1618 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1620 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1621 ntohs(nl_attr_get_be16(ma)));
1625 ds_put_cstr(ds, "<empty>");
1629 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1630 * OVS_KEY_ATTR_* attributes in 'key'. */
1632 odp_flow_key_format(const struct nlattr *key,
1633 size_t key_len, struct ds *ds)
1635 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1639 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1640 const uint8_t *nd_tll, struct ofpbuf *key)
1643 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1647 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1650 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1654 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1655 const uint8_t *nd_tll, struct ofpbuf *key)
1657 struct ovs_key_nd nd_key;
1659 memset(&nd_key, 0, sizeof nd_key);
1661 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1665 put_nd(&nd_key, nd_sll, nd_tll, key);
1670 put_nd_mask(int n, const char *nd_target_s,
1671 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1673 struct ovs_key_nd nd_mask;
1675 memset(&nd_mask, 0xff, sizeof nd_mask);
1677 if (strlen(nd_target_s) != 0 &&
1678 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1682 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1687 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1689 if (!strcasecmp(s, "no")) {
1690 *type = OVS_FRAG_TYPE_NONE;
1691 } else if (!strcasecmp(s, "first")) {
1692 *type = OVS_FRAG_TYPE_FIRST;
1693 } else if (!strcasecmp(s, "later")) {
1694 *type = OVS_FRAG_TYPE_LATER;
1702 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1704 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1705 (mpls_tc << MPLS_TC_SHIFT) |
1706 (mpls_ttl << MPLS_TTL_SHIFT) |
1707 (mpls_bos << MPLS_BOS_SHIFT)));
1711 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1712 struct ofpbuf *key, struct ofpbuf *mask)
1716 uint32_t priority_mask;
1719 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1720 &priority, &priority_mask, &n)) {
1721 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1722 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1724 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1725 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1727 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1738 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1740 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1741 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1743 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1744 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1746 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1756 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1757 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1759 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1767 uint32_t dp_hash_mask;
1770 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1771 &dp_hash_mask, &n)) {
1772 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1773 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1775 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1776 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1778 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1785 uint64_t tun_id, tun_id_mask;
1786 struct flow_tnl tun_key, tun_key_mask;
1789 memset(&tun_key, 0, sizeof tun_key);
1790 memset(&tun_key_mask, 0, sizeof tun_key_mask);
1792 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1793 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1794 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1795 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1796 &tun_id, &tun_id_mask,
1797 IP_SCAN_ARGS(&tun_key.ip_src),
1798 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1799 IP_SCAN_ARGS(&tun_key.ip_dst),
1800 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1801 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1802 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1806 tun_key.tun_id = htonll(tun_id);
1807 tun_key_mask.tun_id = htonll(tun_id_mask);
1808 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1809 tun_key.flags = flags;
1810 tun_key_mask.flags = UINT16_MAX;
1820 tun_key_to_attr(key, &tun_key);
1822 tun_key_to_attr(mask, &tun_key_mask);
1825 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1826 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1827 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1828 IP_SCAN_ARGS(&tun_key.ip_src),
1829 IP_SCAN_ARGS(&tun_key.ip_dst),
1830 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1834 tun_key.tun_id = htonll(tun_id);
1835 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1836 tun_key.flags = flags;
1846 tun_key_to_attr(key, &tun_key);
1849 memset(&tun_key, 0xff, sizeof tun_key);
1850 tun_key_to_attr(mask, &tun_key);
1858 uint32_t in_port_mask;
1861 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1862 &in_port, &in_port_mask, &n)) {
1863 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1864 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1866 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1867 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1869 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1876 if (port_names && !strncmp(s, "in_port(", 8)) {
1878 const struct simap_node *node;
1882 name_len = strcspn(name, ")");
1883 node = simap_find_len(port_names, name, name_len);
1885 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1888 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1890 return 8 + name_len + 1;
1895 struct ovs_key_ethernet eth_key;
1896 struct ovs_key_ethernet eth_key_mask;
1899 if (mask && ovs_scan(s,
1900 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1901 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1902 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1903 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1904 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1905 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1906 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1907 ð_key, sizeof eth_key);
1908 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1909 ð_key_mask, sizeof eth_key_mask);
1911 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1912 "dst="ETH_ADDR_SCAN_FMT")%n",
1913 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1914 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1915 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1916 ð_key, sizeof eth_key);
1919 memset(ð_key, 0xff, sizeof eth_key);
1920 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1921 ð_key, sizeof eth_key);
1933 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1934 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1935 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1936 htons((vid << VLAN_VID_SHIFT) |
1937 (pcp << VLAN_PCP_SHIFT) |
1939 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1940 htons((vid_mask << VLAN_VID_SHIFT) |
1941 (pcp_mask << VLAN_PCP_SHIFT) |
1942 (1 << VLAN_CFI_SHIFT)));
1944 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1945 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1946 htons((vid << VLAN_VID_SHIFT) |
1947 (pcp << VLAN_PCP_SHIFT) |
1950 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1954 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1955 &vid, &vid_mask, &pcp, &pcp_mask,
1956 &cfi, &cfi_mask, &n)) {
1957 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1958 htons((vid << VLAN_VID_SHIFT) |
1959 (pcp << VLAN_PCP_SHIFT) |
1960 (cfi ? VLAN_CFI : 0)));
1961 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1962 htons((vid_mask << VLAN_VID_SHIFT) |
1963 (pcp_mask << VLAN_PCP_SHIFT) |
1964 (cfi_mask << VLAN_CFI_SHIFT)));
1966 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1967 &vid, &pcp, &cfi, &n)) {
1968 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1969 htons((vid << VLAN_VID_SHIFT) |
1970 (pcp << VLAN_PCP_SHIFT) |
1971 (cfi ? VLAN_CFI : 0)));
1973 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1984 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1985 ð_type, ð_type_mask, &n)) {
1986 if (eth_type != 0) {
1987 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1989 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1991 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1992 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1994 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2001 int label, tc, ttl, bos;
2002 int label_mask, tc_mask, ttl_mask, bos_mask;
2005 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
2006 "ttl=%i/%i,bos=%i/%i)%n",
2007 &label, &label_mask, &tc, &tc_mask,
2008 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
2009 struct ovs_key_mpls *mpls, *mpls_mask;
2011 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2013 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2015 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2017 mpls_mask->mpls_lse = mpls_lse_from_components(
2018 label_mask, tc_mask, ttl_mask, bos_mask);
2020 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
2021 &label, &tc, &ttl, &bos, &n)) {
2022 struct ovs_key_mpls *mpls;
2024 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2026 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2028 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2030 mpls->mpls_lse = OVS_BE32_MAX;
2038 struct ovs_key_ipv4 ipv4_key;
2039 struct ovs_key_ipv4 ipv4_mask;
2042 enum ovs_frag_type ipv4_frag;
2046 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
2047 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
2048 "proto=%"SCNi8"/%"SCNi8","
2049 "tos=%"SCNi8"/%"SCNi8","
2050 "ttl=%"SCNi8"/%"SCNi8","
2051 "frag=%7[a-z]/%"SCNi8")%n",
2052 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2053 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
2054 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2055 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
2056 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
2057 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
2058 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
2059 frag, &ipv4_mask.ipv4_frag, &n)
2060 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2061 ipv4_key.ipv4_frag = ipv4_frag;
2062 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2063 &ipv4_key, sizeof ipv4_key);
2065 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2066 &ipv4_mask, sizeof ipv4_mask);
2068 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
2069 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
2071 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2072 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2073 &ipv4_key.ipv4_proto,
2077 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2078 ipv4_key.ipv4_frag = ipv4_frag;
2079 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2080 &ipv4_key, sizeof ipv4_key);
2083 memset(&ipv4_key, 0xff, sizeof ipv4_key);
2084 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2085 &ipv4_key, sizeof ipv4_key);
2092 char ipv6_src_s[IPV6_SCAN_LEN + 1];
2093 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
2094 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
2095 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
2096 int ipv6_label, ipv6_label_mask;
2097 int ipv6_proto, ipv6_proto_mask;
2098 int ipv6_tclass, ipv6_tclass_mask;
2099 int ipv6_hlimit, ipv6_hlimit_mask;
2101 enum ovs_frag_type ipv6_frag;
2105 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2106 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2107 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2108 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2109 ipv6_src_s, ipv6_src_mask_s,
2110 ipv6_dst_s, ipv6_dst_mask_s,
2111 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2112 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2113 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2114 &ipv6_frag_mask, &n)
2115 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2116 struct ovs_key_ipv6 ipv6_key;
2117 struct ovs_key_ipv6 ipv6_mask;
2119 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2120 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2121 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2122 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2126 ipv6_key.ipv6_label = htonl(ipv6_label);
2127 ipv6_key.ipv6_proto = ipv6_proto;
2128 ipv6_key.ipv6_tclass = ipv6_tclass;
2129 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2130 ipv6_key.ipv6_frag = ipv6_frag;
2131 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2132 &ipv6_key, sizeof ipv6_key);
2134 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2135 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2136 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2137 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2138 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2139 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2140 &ipv6_mask, sizeof ipv6_mask);
2142 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2143 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2145 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2146 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2147 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2148 struct ovs_key_ipv6 ipv6_key;
2150 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2151 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2154 ipv6_key.ipv6_label = htonl(ipv6_label);
2155 ipv6_key.ipv6_proto = ipv6_proto;
2156 ipv6_key.ipv6_tclass = ipv6_tclass;
2157 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2158 ipv6_key.ipv6_frag = ipv6_frag;
2159 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2160 &ipv6_key, sizeof ipv6_key);
2163 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2164 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2165 &ipv6_key, sizeof ipv6_key);
2178 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2179 &tcp_src, &tcp_src_mask, &tcp_dst,
2180 &tcp_dst_mask, &n)) {
2181 struct ovs_key_tcp tcp_key;
2182 struct ovs_key_tcp tcp_mask;
2184 tcp_key.tcp_src = htons(tcp_src);
2185 tcp_key.tcp_dst = htons(tcp_dst);
2186 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2188 tcp_mask.tcp_src = htons(tcp_src_mask);
2189 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2190 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2191 &tcp_mask, sizeof tcp_mask);
2193 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2194 &tcp_src, &tcp_dst, &n)) {
2195 struct ovs_key_tcp tcp_key;
2197 tcp_key.tcp_src = htons(tcp_src);
2198 tcp_key.tcp_dst = htons(tcp_dst);
2199 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2202 memset(&tcp_key, 0xff, sizeof tcp_key);
2203 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2204 &tcp_key, sizeof tcp_key);
2211 uint16_t tcp_flags, tcp_flags_mask;
2214 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2215 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2216 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2217 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2219 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2220 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2222 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2236 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2237 &udp_src, &udp_src_mask,
2238 &udp_dst, &udp_dst_mask, &n)) {
2239 struct ovs_key_udp udp_key;
2240 struct ovs_key_udp udp_mask;
2242 udp_key.udp_src = htons(udp_src);
2243 udp_key.udp_dst = htons(udp_dst);
2244 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2246 udp_mask.udp_src = htons(udp_src_mask);
2247 udp_mask.udp_dst = htons(udp_dst_mask);
2248 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2249 &udp_mask, sizeof udp_mask);
2252 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2253 struct ovs_key_udp udp_key;
2255 udp_key.udp_src = htons(udp_src);
2256 udp_key.udp_dst = htons(udp_dst);
2257 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2260 memset(&udp_key, 0xff, sizeof udp_key);
2261 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2274 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2275 &sctp_src, &sctp_src_mask,
2276 &sctp_dst, &sctp_dst_mask, &n)) {
2277 struct ovs_key_sctp sctp_key;
2278 struct ovs_key_sctp sctp_mask;
2280 sctp_key.sctp_src = htons(sctp_src);
2281 sctp_key.sctp_dst = htons(sctp_dst);
2282 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2284 sctp_mask.sctp_src = htons(sctp_src_mask);
2285 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2286 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2287 &sctp_mask, sizeof sctp_mask);
2290 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2291 struct ovs_key_sctp sctp_key;
2293 sctp_key.sctp_src = htons(sctp_src);
2294 sctp_key.sctp_dst = htons(sctp_dst);
2295 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2298 memset(&sctp_key, 0xff, sizeof sctp_key);
2299 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2306 struct ovs_key_icmp icmp_key;
2307 struct ovs_key_icmp icmp_mask;
2310 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2311 "code=%"SCNi8"/%"SCNi8")%n",
2312 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2313 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2314 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2315 &icmp_key, sizeof icmp_key);
2316 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2317 &icmp_mask, sizeof icmp_mask);
2319 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2320 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2321 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2322 &icmp_key, sizeof icmp_key);
2324 memset(&icmp_key, 0xff, sizeof icmp_key);
2325 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2333 struct ovs_key_icmpv6 icmpv6_key;
2334 struct ovs_key_icmpv6 icmpv6_mask;
2337 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2338 "code=%"SCNi8"/%"SCNi8")%n",
2339 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2340 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2342 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2343 &icmpv6_key, sizeof icmpv6_key);
2344 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2345 sizeof icmpv6_mask);
2347 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2348 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2350 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2351 &icmpv6_key, sizeof icmpv6_key);
2354 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2355 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2363 struct ovs_key_arp arp_key;
2364 struct ovs_key_arp arp_mask;
2365 uint16_t arp_op, arp_op_mask;
2368 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2369 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2370 "op=%"SCNi16"/%"SCNi16","
2371 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2372 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2373 IP_SCAN_ARGS(&arp_key.arp_sip),
2374 IP_SCAN_ARGS(&arp_mask.arp_sip),
2375 IP_SCAN_ARGS(&arp_key.arp_tip),
2376 IP_SCAN_ARGS(&arp_mask.arp_tip),
2377 &arp_op, &arp_op_mask,
2378 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2379 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2380 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2381 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2382 arp_key.arp_op = htons(arp_op);
2383 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2384 arp_mask.arp_op = htons(arp_op_mask);
2385 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2386 &arp_mask, sizeof arp_mask);
2388 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2389 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2390 "tha="ETH_ADDR_SCAN_FMT")%n",
2391 IP_SCAN_ARGS(&arp_key.arp_sip),
2392 IP_SCAN_ARGS(&arp_key.arp_tip),
2394 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2395 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2396 arp_key.arp_op = htons(arp_op);
2397 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2400 memset(&arp_key, 0xff, sizeof arp_key);
2401 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2402 &arp_key, sizeof arp_key);
2409 char nd_target_s[IPV6_SCAN_LEN + 1];
2410 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2411 uint8_t nd_sll[ETH_ADDR_LEN];
2412 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2413 uint8_t nd_tll[ETH_ADDR_LEN];
2414 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2417 nd_target_mask_s[0] = 0;
2418 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2419 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2421 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2422 nd_target_s, nd_target_mask_s, &n)) {
2423 put_nd_key(n, nd_target_s, NULL, NULL, key);
2424 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2425 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2427 put_nd_key(n, nd_target_s, NULL, NULL, key);
2429 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2432 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2433 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2434 nd_target_s, nd_target_mask_s,
2435 ETH_ADDR_SCAN_ARGS(nd_sll),
2436 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2437 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2438 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2439 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2440 "sll="ETH_ADDR_SCAN_FMT")%n",
2441 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2442 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2444 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2447 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2448 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2449 nd_target_s, nd_target_mask_s,
2450 ETH_ADDR_SCAN_ARGS(nd_tll),
2451 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2452 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2453 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2454 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2455 "tll="ETH_ADDR_SCAN_FMT")%n",
2456 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2457 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2459 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2462 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2463 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2464 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2465 nd_target_s, nd_target_mask_s,
2466 ETH_ADDR_SCAN_ARGS(nd_sll),
2467 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2468 ETH_ADDR_SCAN_ARGS(nd_tll),
2469 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2471 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2472 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2473 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2474 "sll="ETH_ADDR_SCAN_FMT","
2475 "tll="ETH_ADDR_SCAN_FMT")%n",
2476 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2477 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2478 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2480 put_nd_mask(n, nd_target_mask_s,
2481 nd_sll_mask, nd_tll_mask, mask);
2490 if (!strncmp(s, "encap(", 6)) {
2491 const char *start = s;
2492 size_t encap, encap_mask = 0;
2494 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2496 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2503 s += strspn(s, ", \t\r\n");
2506 } else if (*s == ')') {
2510 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2518 nl_msg_end_nested(key, encap);
2520 nl_msg_end_nested(mask, encap_mask);
2529 /* Parses the string representation of a datapath flow key, in the
2530 * format output by odp_flow_key_format(). Returns 0 if successful,
2531 * otherwise a positive errno value. On success, the flow key is
2532 * appended to 'key' as a series of Netlink attributes. On failure, no
2533 * data is appended to 'key'. Either way, 'key''s data might be
2536 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2537 * to a port number. (Port names may be used instead of port numbers in
2540 * On success, the attributes appended to 'key' are individually syntactically
2541 * valid, but they may not be valid as a sequence. 'key' might, for example,
2542 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2544 odp_flow_from_string(const char *s, const struct simap *port_names,
2545 struct ofpbuf *key, struct ofpbuf *mask)
2547 const size_t old_size = ofpbuf_size(key);
2551 s += strspn(s, delimiters);
2556 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2558 ofpbuf_set_size(key, old_size);
2568 ovs_to_odp_frag(uint8_t nw_frag)
2570 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2571 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2572 : OVS_FRAG_TYPE_LATER);
2576 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2578 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2580 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2581 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2587 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2588 const struct flow *mask, odp_port_t odp_in_port,
2589 size_t max_mpls_depth, bool recirc, bool export_mask)
2591 struct ovs_key_ethernet *eth_key;
2593 const struct flow *data = export_mask ? mask : flow;
2595 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2597 if (flow->tunnel.ip_dst || export_mask) {
2598 tun_key_to_attr(buf, &data->tunnel);
2601 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2604 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2605 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2608 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2609 * is not the magical value "ODPP_NONE". */
2610 if (export_mask || odp_in_port != ODPP_NONE) {
2611 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2614 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2616 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2617 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2619 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2621 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2623 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2625 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2626 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2627 if (flow->vlan_tci == htons(0)) {
2634 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2635 /* For backwards compatibility with kernels that don't support
2636 * wildcarding, the following convention is used to encode the
2637 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2640 * -------- -------- -------
2641 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2642 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2643 * <none> 0xffff Any non-Ethernet II frame (except valid
2644 * 802.3 SNAP packet with valid eth_type).
2647 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2652 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2654 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2655 struct ovs_key_ipv4 *ipv4_key;
2657 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2659 ipv4_key->ipv4_src = data->nw_src;
2660 ipv4_key->ipv4_dst = data->nw_dst;
2661 ipv4_key->ipv4_proto = data->nw_proto;
2662 ipv4_key->ipv4_tos = data->nw_tos;
2663 ipv4_key->ipv4_ttl = data->nw_ttl;
2664 ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2665 : ovs_to_odp_frag(data->nw_frag);
2666 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2667 struct ovs_key_ipv6 *ipv6_key;
2669 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2671 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2672 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2673 ipv6_key->ipv6_label = data->ipv6_label;
2674 ipv6_key->ipv6_proto = data->nw_proto;
2675 ipv6_key->ipv6_tclass = data->nw_tos;
2676 ipv6_key->ipv6_hlimit = data->nw_ttl;
2677 ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2678 : ovs_to_odp_frag(data->nw_frag);
2679 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2680 flow->dl_type == htons(ETH_TYPE_RARP)) {
2681 struct ovs_key_arp *arp_key;
2683 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2685 arp_key->arp_sip = data->nw_src;
2686 arp_key->arp_tip = data->nw_dst;
2687 arp_key->arp_op = htons(data->nw_proto);
2688 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2689 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2690 } else if (eth_type_mpls(flow->dl_type)) {
2691 struct ovs_key_mpls *mpls_key;
2694 n = flow_count_mpls_labels(flow, NULL);
2695 n = MIN(n, max_mpls_depth);
2696 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2697 n * sizeof *mpls_key);
2698 for (i = 0; i < n; i++) {
2699 mpls_key[i].mpls_lse = data->mpls_lse[i];
2703 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2704 if (flow->nw_proto == IPPROTO_TCP) {
2705 struct ovs_key_tcp *tcp_key;
2707 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2709 tcp_key->tcp_src = data->tp_src;
2710 tcp_key->tcp_dst = data->tp_dst;
2712 if (data->tcp_flags) {
2713 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2715 } else if (flow->nw_proto == IPPROTO_UDP) {
2716 struct ovs_key_udp *udp_key;
2718 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2720 udp_key->udp_src = data->tp_src;
2721 udp_key->udp_dst = data->tp_dst;
2722 } else if (flow->nw_proto == IPPROTO_SCTP) {
2723 struct ovs_key_sctp *sctp_key;
2725 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2727 sctp_key->sctp_src = data->tp_src;
2728 sctp_key->sctp_dst = data->tp_dst;
2729 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2730 && flow->nw_proto == IPPROTO_ICMP) {
2731 struct ovs_key_icmp *icmp_key;
2733 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2735 icmp_key->icmp_type = ntohs(data->tp_src);
2736 icmp_key->icmp_code = ntohs(data->tp_dst);
2737 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2738 && flow->nw_proto == IPPROTO_ICMPV6) {
2739 struct ovs_key_icmpv6 *icmpv6_key;
2741 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2742 sizeof *icmpv6_key);
2743 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2744 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2746 if (flow->tp_dst == htons(0)
2747 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
2748 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
2749 && (!export_mask || (data->tp_src == htons(0xffff)
2750 && data->tp_dst == htons(0xffff)))) {
2752 struct ovs_key_nd *nd_key;
2754 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2756 memcpy(nd_key->nd_target, &data->nd_target,
2757 sizeof nd_key->nd_target);
2758 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2759 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2766 nl_msg_end_nested(buf, encap);
2770 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2771 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2772 * number rather than a datapath port number). Instead, if 'odp_in_port'
2773 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2776 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2777 * capable of being expanded to allow for that much space.
2779 * 'recirc' indicates support for recirculation fields. If this is true, then
2780 * these fields will always be serialised. */
2782 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2783 const struct flow *mask, odp_port_t odp_in_port,
2786 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
2790 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2791 * 'buf'. 'flow' is used as a template to determine how to interpret
2792 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2793 * it doesn't indicate whether the other fields should be interpreted as
2794 * ARP, IPv4, IPv6, etc.
2796 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2797 * capable of being expanded to allow for that much space.
2799 * 'recirc' indicates support for recirculation fields. If this is true, then
2800 * these fields will always be serialised. */
2802 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2803 const struct flow *flow, uint32_t odp_in_port_mask,
2804 size_t max_mpls_depth, bool recirc)
2806 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
2807 max_mpls_depth, recirc, true);
2810 /* Generate ODP flow key from the given packet metadata */
2812 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2814 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2816 if (md->tunnel.ip_dst) {
2817 tun_key_to_attr(buf, &md->tunnel);
2820 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2822 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2823 * value "ODPP_NONE". */
2824 if (md->in_port.odp_port != ODPP_NONE) {
2825 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2829 /* Generate packet metadata from the given ODP flow key. */
2831 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2832 struct pkt_metadata *md)
2834 const struct nlattr *nla;
2836 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2837 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2838 1u << OVS_KEY_ATTR_IN_PORT;
2840 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2842 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2843 uint16_t type = nl_attr_type(nla);
2844 size_t len = nl_attr_get_size(nla);
2845 int expected_len = odp_flow_key_attr_len(type);
2847 if (len != expected_len && expected_len >= 0) {
2852 case OVS_KEY_ATTR_RECIRC_ID:
2853 md->recirc_id = nl_attr_get_u32(nla);
2854 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
2856 case OVS_KEY_ATTR_DP_HASH:
2857 md->dp_hash = nl_attr_get_u32(nla);
2858 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
2860 case OVS_KEY_ATTR_PRIORITY:
2861 md->skb_priority = nl_attr_get_u32(nla);
2862 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2864 case OVS_KEY_ATTR_SKB_MARK:
2865 md->pkt_mark = nl_attr_get_u32(nla);
2866 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2868 case OVS_KEY_ATTR_TUNNEL: {
2869 enum odp_key_fitness res;
2871 res = odp_tun_key_from_attr(nla, &md->tunnel);
2872 if (res == ODP_FIT_ERROR) {
2873 memset(&md->tunnel, 0, sizeof md->tunnel);
2874 } else if (res == ODP_FIT_PERFECT) {
2875 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2879 case OVS_KEY_ATTR_IN_PORT:
2880 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2881 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2887 if (!wanted_attrs) {
2888 return; /* Have everything. */
2894 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2896 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2897 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2898 key_len / sizeof(uint32_t), 0);
2902 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2903 uint64_t attrs, int out_of_range_attr,
2904 const struct nlattr *key, size_t key_len)
2909 if (VLOG_DROP_DBG(rl)) {
2914 for (i = 0; i < 64; i++) {
2915 if (attrs & (UINT64_C(1) << i)) {
2916 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2918 ds_put_format(&s, " %s",
2919 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2922 if (out_of_range_attr) {
2923 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2926 ds_put_cstr(&s, ": ");
2927 odp_flow_key_format(key, key_len, &s);
2929 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2934 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2936 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2938 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2939 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2943 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2944 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2945 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2946 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2953 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2954 const struct nlattr *attrs[], uint64_t *present_attrsp,
2955 int *out_of_range_attrp)
2957 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2958 const struct nlattr *nla;
2959 uint64_t present_attrs;
2962 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2964 *out_of_range_attrp = 0;
2965 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2966 uint16_t type = nl_attr_type(nla);
2967 size_t len = nl_attr_get_size(nla);
2968 int expected_len = odp_flow_key_attr_len(type);
2970 if (len != expected_len && expected_len >= 0) {
2971 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2973 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2974 "length %d", ovs_key_attr_to_string(type, namebuf,
2980 if (type > OVS_KEY_ATTR_MAX) {
2981 *out_of_range_attrp = type;
2983 if (present_attrs & (UINT64_C(1) << type)) {
2984 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2986 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2987 ovs_key_attr_to_string(type,
2988 namebuf, sizeof namebuf));
2992 present_attrs |= UINT64_C(1) << type;
2997 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
3001 *present_attrsp = present_attrs;
3005 static enum odp_key_fitness
3006 check_expectations(uint64_t present_attrs, int out_of_range_attr,
3007 uint64_t expected_attrs,
3008 const struct nlattr *key, size_t key_len)
3010 uint64_t missing_attrs;
3011 uint64_t extra_attrs;
3013 missing_attrs = expected_attrs & ~present_attrs;
3014 if (missing_attrs) {
3015 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3016 log_odp_key_attributes(&rl, "expected but not present",
3017 missing_attrs, 0, key, key_len);
3018 return ODP_FIT_TOO_LITTLE;
3021 extra_attrs = present_attrs & ~expected_attrs;
3022 if (extra_attrs || out_of_range_attr) {
3023 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3024 log_odp_key_attributes(&rl, "present but not expected",
3025 extra_attrs, out_of_range_attr, key, key_len);
3026 return ODP_FIT_TOO_MUCH;
3029 return ODP_FIT_PERFECT;
3033 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3034 uint64_t present_attrs, uint64_t *expected_attrs,
3035 struct flow *flow, const struct flow *src_flow)
3037 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3038 bool is_mask = flow != src_flow;
3040 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
3041 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
3042 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
3043 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
3044 ntohs(flow->dl_type));
3047 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
3048 flow->dl_type != htons(0xffff)) {
3051 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
3054 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
3055 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
3056 /* See comments in odp_flow_key_from_flow__(). */
3057 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
3064 static enum odp_key_fitness
3065 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3066 uint64_t present_attrs, int out_of_range_attr,
3067 uint64_t expected_attrs, struct flow *flow,
3068 const struct nlattr *key, size_t key_len,
3069 const struct flow *src_flow)
3071 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3072 bool is_mask = src_flow != flow;
3073 const void *check_start = NULL;
3074 size_t check_len = 0;
3075 enum ovs_key_attr expected_bit = 0xff;
3077 if (eth_type_mpls(src_flow->dl_type)) {
3078 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
3079 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
3080 int n = size / sizeof(ovs_be32);
3083 if (!size || size % sizeof(ovs_be32)) {
3084 return ODP_FIT_ERROR;
3088 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3090 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
3091 return ODP_FIT_TOO_LITTLE;
3093 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
3094 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
3095 return ODP_FIT_ERROR;
3097 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3100 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3101 flow->mpls_lse[i] = mpls_lse[i];
3103 if (n > FLOW_MAX_MPLS_LABELS) {
3104 return ODP_FIT_TOO_MUCH;
3108 /* BOS may be set only in the innermost label. */
3109 for (i = 0; i < n - 1; i++) {
3110 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3111 return ODP_FIT_ERROR;
3115 /* BOS must be set in the innermost label. */
3116 if (n < FLOW_MAX_MPLS_LABELS
3117 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3118 return ODP_FIT_TOO_LITTLE;
3123 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3125 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3127 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3128 const struct ovs_key_ipv4 *ipv4_key;
3130 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3131 flow->nw_src = ipv4_key->ipv4_src;
3132 flow->nw_dst = ipv4_key->ipv4_dst;
3133 flow->nw_proto = ipv4_key->ipv4_proto;
3134 flow->nw_tos = ipv4_key->ipv4_tos;
3135 flow->nw_ttl = ipv4_key->ipv4_ttl;
3137 flow->nw_frag = ipv4_key->ipv4_frag;
3138 check_start = ipv4_key;
3139 check_len = sizeof *ipv4_key;
3140 expected_bit = OVS_KEY_ATTR_IPV4;
3141 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3142 return ODP_FIT_ERROR;
3145 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3147 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3149 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3150 const struct ovs_key_ipv6 *ipv6_key;
3152 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3153 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3154 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3155 flow->ipv6_label = ipv6_key->ipv6_label;
3156 flow->nw_proto = ipv6_key->ipv6_proto;
3157 flow->nw_tos = ipv6_key->ipv6_tclass;
3158 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3160 flow->nw_frag = ipv6_key->ipv6_frag;
3161 check_start = ipv6_key;
3162 check_len = sizeof *ipv6_key;
3163 expected_bit = OVS_KEY_ATTR_IPV6;
3164 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3165 return ODP_FIT_ERROR;
3168 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3169 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3171 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3173 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3174 const struct ovs_key_arp *arp_key;
3176 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3177 flow->nw_src = arp_key->arp_sip;
3178 flow->nw_dst = arp_key->arp_tip;
3179 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3180 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3181 "key", ntohs(arp_key->arp_op));
3182 return ODP_FIT_ERROR;
3184 flow->nw_proto = ntohs(arp_key->arp_op);
3185 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3186 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3189 check_start = arp_key;
3190 check_len = sizeof *arp_key;
3191 expected_bit = OVS_KEY_ATTR_ARP;
3197 if (check_len > 0) { /* Happens only when 'is_mask'. */
3198 if (!is_all_zeros(check_start, check_len) &&
3199 flow->dl_type != htons(0xffff)) {
3200 return ODP_FIT_ERROR;
3202 expected_attrs |= UINT64_C(1) << expected_bit;
3206 expected_bit = OVS_KEY_ATTR_UNSPEC;
3207 if (src_flow->nw_proto == IPPROTO_TCP
3208 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3209 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3210 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3212 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3214 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3215 const struct ovs_key_tcp *tcp_key;
3217 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3218 flow->tp_src = tcp_key->tcp_src;
3219 flow->tp_dst = tcp_key->tcp_dst;
3220 expected_bit = OVS_KEY_ATTR_TCP;
3222 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3223 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3224 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3226 } else if (src_flow->nw_proto == IPPROTO_UDP
3227 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3228 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3229 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3231 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3233 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3234 const struct ovs_key_udp *udp_key;
3236 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3237 flow->tp_src = udp_key->udp_src;
3238 flow->tp_dst = udp_key->udp_dst;
3239 expected_bit = OVS_KEY_ATTR_UDP;
3241 } else if (src_flow->nw_proto == IPPROTO_SCTP
3242 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3243 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3244 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3246 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3248 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3249 const struct ovs_key_sctp *sctp_key;
3251 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3252 flow->tp_src = sctp_key->sctp_src;
3253 flow->tp_dst = sctp_key->sctp_dst;
3254 expected_bit = OVS_KEY_ATTR_SCTP;
3256 } else if (src_flow->nw_proto == IPPROTO_ICMP
3257 && src_flow->dl_type == htons(ETH_TYPE_IP)
3258 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3260 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3262 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3263 const struct ovs_key_icmp *icmp_key;
3265 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3266 flow->tp_src = htons(icmp_key->icmp_type);
3267 flow->tp_dst = htons(icmp_key->icmp_code);
3268 expected_bit = OVS_KEY_ATTR_ICMP;
3270 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3271 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3272 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3274 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3276 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3277 const struct ovs_key_icmpv6 *icmpv6_key;
3279 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3280 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3281 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3282 expected_bit = OVS_KEY_ATTR_ICMPV6;
3283 if (src_flow->tp_dst == htons(0) &&
3284 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3285 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3287 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3289 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3290 const struct ovs_key_nd *nd_key;
3292 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3293 memcpy(&flow->nd_target, nd_key->nd_target,
3294 sizeof flow->nd_target);
3295 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3296 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3298 if (!is_all_zeros((const uint8_t *) nd_key,
3300 (flow->tp_src != htons(0xffff) ||
3301 flow->tp_dst != htons(0xffff))) {
3302 return ODP_FIT_ERROR;
3304 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3311 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3312 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3313 return ODP_FIT_ERROR;
3315 expected_attrs |= UINT64_C(1) << expected_bit;
3320 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3324 /* Parse 802.1Q header then encapsulated L3 attributes. */
3325 static enum odp_key_fitness
3326 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3327 uint64_t present_attrs, int out_of_range_attr,
3328 uint64_t expected_attrs, struct flow *flow,
3329 const struct nlattr *key, size_t key_len,
3330 const struct flow *src_flow)
3332 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3333 bool is_mask = src_flow != flow;
3335 const struct nlattr *encap
3336 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3337 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3338 enum odp_key_fitness encap_fitness;
3339 enum odp_key_fitness fitness;
3341 /* Calculate fitness of outer attributes. */
3343 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3344 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3346 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3347 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3349 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3350 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3353 fitness = check_expectations(present_attrs, out_of_range_attr,
3354 expected_attrs, key, key_len);
3357 * Remove the TPID from dl_type since it's not the real Ethertype. */
3358 flow->dl_type = htons(0);
3359 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3360 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3363 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3364 return ODP_FIT_TOO_LITTLE;
3365 } else if (flow->vlan_tci == htons(0)) {
3366 /* Corner case for a truncated 802.1Q header. */
3367 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3368 return ODP_FIT_TOO_MUCH;
3371 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3372 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3373 "but CFI bit is not set", ntohs(flow->vlan_tci));
3374 return ODP_FIT_ERROR;
3377 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3382 /* Now parse the encapsulated attributes. */
3383 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3384 attrs, &present_attrs, &out_of_range_attr)) {
3385 return ODP_FIT_ERROR;
3389 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3390 return ODP_FIT_ERROR;
3392 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3393 expected_attrs, flow, key, key_len,
3396 /* The overall fitness is the worse of the outer and inner attributes. */
3397 return MAX(fitness, encap_fitness);
3400 static enum odp_key_fitness
3401 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3402 struct flow *flow, const struct flow *src_flow)
3404 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3405 uint64_t expected_attrs;
3406 uint64_t present_attrs;
3407 int out_of_range_attr;
3408 bool is_mask = src_flow != flow;
3410 memset(flow, 0, sizeof *flow);
3412 /* Parse attributes. */
3413 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3414 &out_of_range_attr)) {
3415 return ODP_FIT_ERROR;
3420 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3421 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3422 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3423 } else if (is_mask) {
3424 /* Always exact match recirc_id if it is not specified. */
3425 flow->recirc_id = UINT32_MAX;
3428 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3429 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3430 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3432 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3433 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3434 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3437 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3438 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3439 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3442 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3443 enum odp_key_fitness res;
3445 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3446 if (res == ODP_FIT_ERROR) {
3447 return ODP_FIT_ERROR;
3448 } else if (res == ODP_FIT_PERFECT) {
3449 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3453 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3454 flow->in_port.odp_port
3455 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3456 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3457 } else if (!is_mask) {
3458 flow->in_port.odp_port = ODPP_NONE;
3461 /* Ethernet header. */
3462 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3463 const struct ovs_key_ethernet *eth_key;
3465 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3466 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3467 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3469 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3473 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3476 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3477 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3479 return ODP_FIT_ERROR;
3483 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3484 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3485 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3486 expected_attrs, flow, key, key_len, src_flow);
3489 flow->vlan_tci = htons(0xffff);
3490 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3491 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3492 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3495 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3496 expected_attrs, flow, key, key_len, src_flow);
3499 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3500 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3501 * 'key' fits our expectations for what a flow key should contain.
3503 * The 'in_port' will be the datapath's understanding of the port. The
3504 * caller will need to translate with odp_port_to_ofp_port() if the
3505 * OpenFlow port is needed.
3507 * This function doesn't take the packet itself as an argument because none of
3508 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3509 * it is always possible to infer which additional attribute(s) should appear
3510 * by looking at the attributes for lower-level protocols, e.g. if the network
3511 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3512 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3513 * must be absent. */
3514 enum odp_key_fitness
3515 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3518 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3521 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3522 * structure in 'mask'. 'flow' must be a previously translated flow
3523 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3524 * 'key' fits our expectations for what a flow key should contain. */
3525 enum odp_key_fitness
3526 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3527 struct flow *mask, const struct flow *flow)
3529 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3532 /* Returns 'fitness' as a string, for use in debug messages. */
3534 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3537 case ODP_FIT_PERFECT:
3539 case ODP_FIT_TOO_MUCH:
3541 case ODP_FIT_TOO_LITTLE:
3542 return "too_little";
3550 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3551 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3552 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3553 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3554 * null, then the return value is not meaningful.) */
3556 odp_put_userspace_action(uint32_t pid,
3557 const void *userdata, size_t userdata_size,
3558 odp_port_t tunnel_out_port,
3559 struct ofpbuf *odp_actions)
3561 size_t userdata_ofs;
3564 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3565 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3567 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3569 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3570 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3573 * - The kernel rejected shorter userdata with -ERANGE.
3575 * - The kernel silently dropped userdata beyond the first 8 bytes.
3577 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3578 * separately disable features that required more than 8 bytes.) */
3579 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3580 MAX(8, userdata_size)),
3581 userdata, userdata_size);
3585 if (tunnel_out_port != ODPP_NONE) {
3586 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
3589 nl_msg_end_nested(odp_actions, offset);
3591 return userdata_ofs;
3595 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3596 struct ofpbuf *odp_actions)
3598 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3599 tun_key_to_attr(odp_actions, tunnel);
3600 nl_msg_end_nested(odp_actions, offset);
3603 /* The commit_odp_actions() function and its helpers. */
3606 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3607 const void *key, size_t key_size)
3609 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3610 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3611 nl_msg_end_nested(odp_actions, offset);
3615 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3616 struct ofpbuf *odp_actions)
3618 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3622 /* If any of the flow key data that ODP actions can modify are different in
3623 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3624 * 'odp_actions' that change the flow tunneling information in key from
3625 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3626 * same way. In other words, operates the same as commit_odp_actions(), but
3627 * only on tunneling information. */
3629 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3630 struct ofpbuf *odp_actions)
3632 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3633 if (flow->tunnel.ip_dst) {
3634 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3637 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3638 odp_put_tunnel_action(&base->tunnel, odp_actions);
3643 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3644 struct ofpbuf *odp_actions,
3645 struct flow_wildcards *wc)
3647 struct ovs_key_ethernet eth_key;
3649 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3650 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3654 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3655 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3657 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3658 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3660 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3661 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3663 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3664 ð_key, sizeof(eth_key));
3668 pop_vlan(struct flow *base,
3669 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3671 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3673 if (base->vlan_tci & htons(VLAN_CFI)) {
3674 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3680 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3681 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3683 if (base->vlan_tci == vlan_tci) {
3687 pop_vlan(base, odp_actions, wc);
3688 if (vlan_tci & htons(VLAN_CFI)) {
3689 struct ovs_action_push_vlan vlan;
3691 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3692 vlan.vlan_tci = vlan_tci;
3693 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3694 &vlan, sizeof vlan);
3696 base->vlan_tci = vlan_tci;
3700 commit_mpls_action(const struct flow *flow, struct flow *base,
3701 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3703 int base_n = flow_count_mpls_labels(base, wc);
3704 int flow_n = flow_count_mpls_labels(flow, wc);
3705 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3708 while (base_n > common_n) {
3709 if (base_n - 1 == common_n && flow_n > common_n) {
3710 /* If there is only one more LSE in base than there are common
3711 * between base and flow; and flow has at least one more LSE than
3712 * is common then the topmost LSE of base may be updated using
3714 struct ovs_key_mpls mpls_key;
3716 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3717 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3718 &mpls_key, sizeof mpls_key);
3719 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3722 /* Otherwise, if there more LSEs in base than are common between
3723 * base and flow then pop the topmost one. */
3727 /* If all the LSEs are to be popped and this is not the outermost
3728 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3729 * POP_MPLS action instead of flow->dl_type.
3731 * This is because the POP_MPLS action requires its ethertype
3732 * argument to be an MPLS ethernet type but in this case
3733 * flow->dl_type will be a non-MPLS ethernet type.
3735 * When the final POP_MPLS action occurs it use flow->dl_type and
3736 * the and the resulting packet will have the desired dl_type. */
3737 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3738 dl_type = htons(ETH_TYPE_MPLS);
3740 dl_type = flow->dl_type;
3742 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3743 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3749 /* If, after the above popping and setting, there are more LSEs in flow
3750 * than base then some LSEs need to be pushed. */
3751 while (base_n < flow_n) {
3752 struct ovs_action_push_mpls *mpls;
3754 mpls = nl_msg_put_unspec_zero(odp_actions,
3755 OVS_ACTION_ATTR_PUSH_MPLS,
3757 mpls->mpls_ethertype = flow->dl_type;
3758 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3759 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3760 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3766 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3767 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3769 struct ovs_key_ipv4 ipv4_key;
3771 if (base->nw_src == flow->nw_src &&
3772 base->nw_dst == flow->nw_dst &&
3773 base->nw_tos == flow->nw_tos &&
3774 base->nw_ttl == flow->nw_ttl &&
3775 base->nw_frag == flow->nw_frag) {
3779 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3780 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3781 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3782 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3783 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3784 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3786 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3787 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3788 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3789 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3790 ipv4_key.ipv4_proto = base->nw_proto;
3791 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3793 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3794 &ipv4_key, sizeof(ipv4_key));
3798 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3799 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3801 struct ovs_key_ipv6 ipv6_key;
3803 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3804 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3805 base->ipv6_label == flow->ipv6_label &&
3806 base->nw_tos == flow->nw_tos &&
3807 base->nw_ttl == flow->nw_ttl &&
3808 base->nw_frag == flow->nw_frag) {
3812 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3813 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3814 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3815 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3816 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3817 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3818 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3820 base->ipv6_src = flow->ipv6_src;
3821 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3822 base->ipv6_dst = flow->ipv6_dst;
3823 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3825 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3826 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3827 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3828 ipv6_key.ipv6_proto = base->nw_proto;
3829 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3831 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3832 &ipv6_key, sizeof(ipv6_key));
3835 static enum slow_path_reason
3836 commit_set_arp_action(const struct flow *flow, struct flow *base,
3837 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3839 struct ovs_key_arp arp_key;
3841 if (base->nw_src == flow->nw_src &&
3842 base->nw_dst == flow->nw_dst &&
3843 base->nw_proto == flow->nw_proto &&
3844 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3845 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3849 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3850 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3851 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3852 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3853 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3855 base->nw_src = flow->nw_src;
3856 base->nw_dst = flow->nw_dst;
3857 base->nw_proto = flow->nw_proto;
3858 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3859 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3861 arp_key.arp_sip = base->nw_src;
3862 arp_key.arp_tip = base->nw_dst;
3863 arp_key.arp_op = htons(base->nw_proto);
3864 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3865 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3867 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3872 static enum slow_path_reason
3873 commit_set_nw_action(const struct flow *flow, struct flow *base,
3874 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3876 /* Check if 'flow' really has an L3 header. */
3877 if (!flow->nw_proto) {
3881 switch (ntohs(base->dl_type)) {
3883 commit_set_ipv4_action(flow, base, odp_actions, wc);
3887 commit_set_ipv6_action(flow, base, odp_actions, wc);
3891 return commit_set_arp_action(flow, base, odp_actions, wc);
3898 commit_set_port_action(const struct flow *flow, struct flow *base,
3899 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3901 /* Check if 'flow' really has an L3 header. */
3902 if (!flow->nw_proto) {
3906 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3910 if (base->tp_src == flow->tp_src &&
3911 base->tp_dst == flow->tp_dst) {
3915 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3916 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3918 if (flow->nw_proto == IPPROTO_TCP) {
3919 struct ovs_key_tcp port_key;
3921 port_key.tcp_src = base->tp_src = flow->tp_src;
3922 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3924 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3925 &port_key, sizeof(port_key));
3927 } else if (flow->nw_proto == IPPROTO_UDP) {
3928 struct ovs_key_udp port_key;
3930 port_key.udp_src = base->tp_src = flow->tp_src;
3931 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3933 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3934 &port_key, sizeof(port_key));
3935 } else if (flow->nw_proto == IPPROTO_SCTP) {
3936 struct ovs_key_sctp port_key;
3938 port_key.sctp_src = base->tp_src = flow->tp_src;
3939 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3941 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3942 &port_key, sizeof(port_key));
3947 commit_set_priority_action(const struct flow *flow, struct flow *base,
3948 struct ofpbuf *odp_actions,
3949 struct flow_wildcards *wc)
3951 if (base->skb_priority == flow->skb_priority) {
3955 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3956 base->skb_priority = flow->skb_priority;
3958 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3959 &base->skb_priority, sizeof(base->skb_priority));
3963 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3964 struct ofpbuf *odp_actions,
3965 struct flow_wildcards *wc)
3967 if (base->pkt_mark == flow->pkt_mark) {
3971 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3972 base->pkt_mark = flow->pkt_mark;
3974 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3977 /* If any of the flow key data that ODP actions can modify are different in
3978 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3979 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3980 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3981 * in addition to this function if needed. Sets fields in 'wc' that are
3982 * used as part of the action.
3984 * Returns a reason to force processing the flow's packets into the userspace
3985 * slow path, if there is one, otherwise 0. */
3986 enum slow_path_reason
3987 commit_odp_actions(const struct flow *flow, struct flow *base,
3988 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3990 enum slow_path_reason slow;
3992 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3993 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3994 commit_set_port_action(flow, base, odp_actions, wc);
3995 commit_mpls_action(flow, base, odp_actions, wc);
3996 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3997 commit_set_priority_action(flow, base, odp_actions, wc);
3998 commit_set_pkt_mark_action(flow, base, odp_actions, wc);