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,
265 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
266 const struct nlattr *userdata_attr;
268 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
269 ds_put_cstr(ds, "userspace(error)");
273 ds_put_format(ds, "userspace(pid=%"PRIu32,
274 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
276 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
279 const uint8_t *userdata = nl_attr_get(userdata_attr);
280 size_t userdata_len = nl_attr_get_size(userdata_attr);
281 bool userdata_unspec = true;
282 union user_action_cookie cookie;
284 if (userdata_len >= sizeof cookie.type
285 && userdata_len <= sizeof cookie) {
287 memset(&cookie, 0, sizeof cookie);
288 memcpy(&cookie, userdata, userdata_len);
290 userdata_unspec = false;
292 if (userdata_len == sizeof cookie.sflow
293 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
294 ds_put_format(ds, ",sFlow("
295 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
296 vlan_tci_to_vid(cookie.sflow.vlan_tci),
297 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
298 cookie.sflow.output);
299 } else if (userdata_len == sizeof cookie.slow_path
300 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
301 ds_put_cstr(ds, ",slow_path(");
302 format_flags(ds, slow_path_reason_to_string,
303 cookie.slow_path.reason, ',');
304 ds_put_format(ds, ")");
305 } else if (userdata_len == sizeof cookie.flow_sample
306 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
307 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
308 ",collector_set_id=%"PRIu32
309 ",obs_domain_id=%"PRIu32
310 ",obs_point_id=%"PRIu32")",
311 cookie.flow_sample.probability,
312 cookie.flow_sample.collector_set_id,
313 cookie.flow_sample.obs_domain_id,
314 cookie.flow_sample.obs_point_id);
315 } else if (userdata_len >= sizeof cookie.ipfix
316 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
317 ds_put_format(ds, ",ipfix");
319 userdata_unspec = true;
323 if (userdata_unspec) {
325 ds_put_format(ds, ",userdata(");
326 for (i = 0; i < userdata_len; i++) {
327 ds_put_format(ds, "%02x", userdata[i]);
329 ds_put_char(ds, ')');
333 ds_put_char(ds, ')');
337 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
339 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
340 vlan_tci_to_vid(vlan_tci),
341 vlan_tci_to_pcp(vlan_tci));
342 if (!(vlan_tci & htons(VLAN_CFI))) {
343 ds_put_cstr(ds, ",cfi=0");
348 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
350 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
351 mpls_lse_to_label(mpls_lse),
352 mpls_lse_to_tc(mpls_lse),
353 mpls_lse_to_ttl(mpls_lse),
354 mpls_lse_to_bos(mpls_lse));
358 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
359 const struct ovs_key_mpls *mpls_mask, int n)
362 ovs_be32 key = mpls_key->mpls_lse;
364 if (mpls_mask == NULL) {
365 format_mpls_lse(ds, key);
367 ovs_be32 mask = mpls_mask->mpls_lse;
369 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
370 mpls_lse_to_label(key), mpls_lse_to_label(mask),
371 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
372 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
373 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
378 for (i = 0; i < n; i++) {
379 ds_put_format(ds, "lse%d=%#"PRIx32,
380 i, ntohl(mpls_key[i].mpls_lse));
382 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
384 ds_put_char(ds, ',');
391 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
393 ds_put_format(ds, "recirc(%"PRIu32")", recirc_id);
397 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
399 ds_put_format(ds, "hash(");
401 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
402 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
404 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
407 ds_put_format(ds, ")");
411 format_odp_action(struct ds *ds, const struct nlattr *a)
414 enum ovs_action_attr type = nl_attr_type(a);
415 const struct ovs_action_push_vlan *vlan;
417 expected_len = odp_action_len(nl_attr_type(a));
418 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
419 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
420 nl_attr_get_size(a), expected_len);
421 format_generic_odp_action(ds, a);
426 case OVS_ACTION_ATTR_OUTPUT:
427 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
429 case OVS_ACTION_ATTR_USERSPACE:
430 format_odp_userspace_action(ds, a);
432 case OVS_ACTION_ATTR_RECIRC:
433 format_odp_recirc_action(ds, nl_attr_get_u32(a));
435 case OVS_ACTION_ATTR_HASH:
436 format_odp_hash_action(ds, nl_attr_get(a));
438 case OVS_ACTION_ATTR_SET:
439 ds_put_cstr(ds, "set(");
440 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
441 ds_put_cstr(ds, ")");
443 case OVS_ACTION_ATTR_PUSH_VLAN:
444 vlan = nl_attr_get(a);
445 ds_put_cstr(ds, "push_vlan(");
446 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
447 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
449 format_vlan_tci(ds, vlan->vlan_tci);
450 ds_put_char(ds, ')');
452 case OVS_ACTION_ATTR_POP_VLAN:
453 ds_put_cstr(ds, "pop_vlan");
455 case OVS_ACTION_ATTR_PUSH_MPLS: {
456 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
457 ds_put_cstr(ds, "push_mpls(");
458 format_mpls_lse(ds, mpls->mpls_lse);
459 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
462 case OVS_ACTION_ATTR_POP_MPLS: {
463 ovs_be16 ethertype = nl_attr_get_be16(a);
464 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
467 case OVS_ACTION_ATTR_SAMPLE:
468 format_odp_sample_action(ds, a);
470 case OVS_ACTION_ATTR_UNSPEC:
471 case __OVS_ACTION_ATTR_MAX:
473 format_generic_odp_action(ds, a);
479 format_odp_actions(struct ds *ds, const struct nlattr *actions,
483 const struct nlattr *a;
486 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
488 ds_put_char(ds, ',');
490 format_odp_action(ds, a);
495 if (left == actions_len) {
496 ds_put_cstr(ds, "<empty>");
498 ds_put_format(ds, ",***%u leftover bytes*** (", left);
499 for (i = 0; i < left; i++) {
500 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
502 ds_put_char(ds, ')');
505 ds_put_cstr(ds, "drop");
510 parse_odp_action(const char *s, const struct simap *port_names,
511 struct ofpbuf *actions)
517 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
518 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
524 int len = strcspn(s, delimiters);
525 struct simap_node *node;
527 node = simap_find_len(port_names, s, len);
529 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
537 uint32_t probability;
538 uint32_t collector_set_id;
539 uint32_t obs_domain_id;
540 uint32_t obs_point_id;
544 if (ovs_scan(s, "userspace(pid=%"SCNi32")%n", &pid, &n)) {
545 odp_put_userspace_action(pid, NULL, 0, actions);
547 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",sFlow(vid=%i,"
548 "pcp=%i,output=%"SCNi32"))%n",
549 &pid, &vid, &pcp, &output, &n)) {
550 union user_action_cookie cookie;
553 tci = vid | (pcp << VLAN_PCP_SHIFT);
558 cookie.type = USER_ACTION_COOKIE_SFLOW;
559 cookie.sflow.vlan_tci = htons(tci);
560 cookie.sflow.output = output;
561 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
564 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",slow_path%n",
566 union user_action_cookie cookie;
569 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
570 cookie.slow_path.unused = 0;
571 cookie.slow_path.reason = 0;
573 res = parse_flags(&s[n], slow_path_reason_to_string,
574 &cookie.slow_path.reason);
584 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
587 } else if (ovs_scan(s, "userspace(pid=%"SCNi32","
588 "flow_sample(probability=%"SCNi32","
589 "collector_set_id=%"SCNi32","
590 "obs_domain_id=%"SCNi32","
591 "obs_point_id=%"SCNi32"))%n",
592 &pid, &probability, &collector_set_id,
593 &obs_domain_id, &obs_point_id, &n)) {
594 union user_action_cookie cookie;
596 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
597 cookie.flow_sample.probability = probability;
598 cookie.flow_sample.collector_set_id = collector_set_id;
599 cookie.flow_sample.obs_domain_id = obs_domain_id;
600 cookie.flow_sample.obs_point_id = obs_point_id;
601 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
604 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",ipfix)%n", &pid, &n)) {
605 union user_action_cookie cookie;
607 cookie.type = USER_ACTION_COOKIE_IPFIX;
608 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
611 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",userdata(%n",
616 ofpbuf_init(&buf, 16);
617 end = ofpbuf_put_hex(&buf, &s[n], NULL);
618 if (end[0] == ')' && end[1] == ')') {
619 odp_put_userspace_action(pid, ofpbuf_data(&buf), ofpbuf_size(&buf), actions);
621 return (end + 2) - s;
626 if (!strncmp(s, "set(", 4)) {
630 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
631 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
635 if (s[retval + 4] != ')') {
638 nl_msg_end_nested(actions, start_ofs);
643 struct ovs_action_push_vlan push;
644 int tpid = ETH_TYPE_VLAN;
649 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
650 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
651 &vid, &pcp, &cfi, &n)
652 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
653 &tpid, &vid, &pcp, &n)
654 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
655 &tpid, &vid, &pcp, &cfi, &n)) {
656 push.vlan_tpid = htons(tpid);
657 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
658 | (pcp << VLAN_PCP_SHIFT)
659 | (cfi ? VLAN_CFI : 0));
660 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
667 if (!strncmp(s, "pop_vlan", 8)) {
668 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
676 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
677 && percentage >= 0. && percentage <= 100.0) {
678 size_t sample_ofs, actions_ofs;
681 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
682 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
683 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
684 (probability <= 0 ? 0
685 : probability >= UINT32_MAX ? UINT32_MAX
688 actions_ofs = nl_msg_start_nested(actions,
689 OVS_SAMPLE_ATTR_ACTIONS);
693 n += strspn(s + n, delimiters);
698 retval = parse_odp_action(s + n, port_names, actions);
704 nl_msg_end_nested(actions, actions_ofs);
705 nl_msg_end_nested(actions, sample_ofs);
707 return s[n + 1] == ')' ? n + 2 : -EINVAL;
714 /* Parses the string representation of datapath actions, in the format output
715 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
716 * value. On success, the ODP actions are appended to 'actions' as a series of
717 * Netlink attributes. On failure, no data is appended to 'actions'. Either
718 * way, 'actions''s data might be reallocated. */
720 odp_actions_from_string(const char *s, const struct simap *port_names,
721 struct ofpbuf *actions)
725 if (!strcasecmp(s, "drop")) {
729 old_size = ofpbuf_size(actions);
733 s += strspn(s, delimiters);
738 retval = parse_odp_action(s, port_names, actions);
739 if (retval < 0 || !strchr(delimiters, s[retval])) {
740 ofpbuf_set_size(actions, old_size);
749 /* Returns the correct length of the payload for a flow key attribute of the
750 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
751 * is variable length. */
753 odp_flow_key_attr_len(uint16_t type)
755 if (type > OVS_KEY_ATTR_MAX) {
759 switch ((enum ovs_key_attr) type) {
760 case OVS_KEY_ATTR_ENCAP: return -2;
761 case OVS_KEY_ATTR_PRIORITY: return 4;
762 case OVS_KEY_ATTR_SKB_MARK: return 4;
763 case OVS_KEY_ATTR_DP_HASH: return 4;
764 case OVS_KEY_ATTR_RECIRC_ID: return 4;
765 case OVS_KEY_ATTR_TUNNEL: return -2;
766 case OVS_KEY_ATTR_IN_PORT: return 4;
767 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
768 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
769 case OVS_KEY_ATTR_ETHERTYPE: return 2;
770 case OVS_KEY_ATTR_MPLS: return -2;
771 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
772 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
773 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
774 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
775 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
776 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
777 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
778 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
779 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
780 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
782 case OVS_KEY_ATTR_UNSPEC:
783 case __OVS_KEY_ATTR_MAX:
791 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
793 size_t len = nl_attr_get_size(a);
795 const uint8_t *unspec;
798 unspec = nl_attr_get(a);
799 for (i = 0; i < len; i++) {
801 ds_put_char(ds, ' ');
803 ds_put_format(ds, "%02x", unspec[i]);
809 ovs_frag_type_to_string(enum ovs_frag_type type)
812 case OVS_FRAG_TYPE_NONE:
814 case OVS_FRAG_TYPE_FIRST:
816 case OVS_FRAG_TYPE_LATER:
818 case __OVS_FRAG_TYPE_MAX:
825 tunnel_key_attr_len(int type)
828 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
829 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
830 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
831 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
832 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
833 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
834 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
835 case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
836 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
837 case __OVS_TUNNEL_KEY_ATTR_MAX:
843 #define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
845 parse_geneve_opts(const struct nlattr *attr)
847 int opts_len = nl_attr_get_size(attr);
848 const struct geneve_opt *opt = nl_attr_get(attr);
850 while (opts_len > 0) {
853 if (opts_len < sizeof(*opt)) {
857 len = sizeof(*opt) + opt->length * 4;
858 if (len > opts_len) {
862 switch (GENEVE_OPT(opt->opt_class, opt->type)) {
864 if (opt->type & GENEVE_CRIT_OPT_TYPE) {
869 opt = opt + len / sizeof(*opt);
877 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
880 const struct nlattr *a;
882 bool unknown = false;
884 NL_NESTED_FOR_EACH(a, left, attr) {
885 uint16_t type = nl_attr_type(a);
886 size_t len = nl_attr_get_size(a);
887 int expected_len = tunnel_key_attr_len(type);
889 if (len != expected_len && expected_len >= 0) {
890 return ODP_FIT_ERROR;
894 case OVS_TUNNEL_KEY_ATTR_ID:
895 tun->tun_id = nl_attr_get_be64(a);
896 tun->flags |= FLOW_TNL_F_KEY;
898 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
899 tun->ip_src = nl_attr_get_be32(a);
901 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
902 tun->ip_dst = nl_attr_get_be32(a);
904 case OVS_TUNNEL_KEY_ATTR_TOS:
905 tun->ip_tos = nl_attr_get_u8(a);
907 case OVS_TUNNEL_KEY_ATTR_TTL:
908 tun->ip_ttl = nl_attr_get_u8(a);
911 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
912 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
914 case OVS_TUNNEL_KEY_ATTR_CSUM:
915 tun->flags |= FLOW_TNL_F_CSUM;
917 case OVS_TUNNEL_KEY_ATTR_OAM:
918 tun->flags |= FLOW_TNL_F_OAM;
920 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
921 if (parse_geneve_opts(a)) {
922 return ODP_FIT_ERROR;
924 /* It is necessary to reproduce options exactly (including order)
925 * so it's easiest to just echo them back. */
930 /* Allow this to show up as unexpected, if there are unknown
931 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
938 return ODP_FIT_ERROR;
941 return ODP_FIT_TOO_MUCH;
943 return ODP_FIT_PERFECT;
947 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
951 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
953 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
954 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
955 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
957 if (tun_key->ip_src) {
958 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
960 if (tun_key->ip_dst) {
961 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
963 if (tun_key->ip_tos) {
964 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
966 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
967 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
968 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
970 if (tun_key->flags & FLOW_TNL_F_CSUM) {
971 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
973 if (tun_key->flags & FLOW_TNL_F_OAM) {
974 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
977 nl_msg_end_nested(a, tun_key_ofs);
981 odp_mask_attr_is_wildcard(const struct nlattr *ma)
983 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
987 odp_mask_attr_is_exact(const struct nlattr *ma)
989 bool is_exact = false;
990 enum ovs_key_attr attr = nl_attr_type(ma);
992 if (attr == OVS_KEY_ATTR_TUNNEL) {
993 /* XXX this is a hack for now. Should change
994 * the exact match dection to per field
995 * instead of per attribute.
997 struct flow_tnl tun_mask;
998 memset(&tun_mask, 0, sizeof tun_mask);
999 odp_tun_key_from_attr(ma, &tun_mask);
1000 if (tun_mask.flags == (FLOW_TNL_F_KEY
1001 | FLOW_TNL_F_DONT_FRAGMENT
1003 | FLOW_TNL_F_OAM)) {
1004 /* The flags are exact match, check the remaining fields. */
1005 tun_mask.flags = 0xffff;
1006 is_exact = is_all_ones((uint8_t *)&tun_mask,
1007 offsetof(struct flow_tnl, ip_ttl));
1010 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
1017 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1020 struct odp_portno_names *odp_portno_names;
1022 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1023 odp_portno_names->port_no = port_no;
1024 odp_portno_names->name = xstrdup(port_name);
1025 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1026 hash_odp_port(port_no));
1030 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1032 struct odp_portno_names *odp_portno_names;
1034 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1035 hash_odp_port(port_no), portno_names) {
1036 if (odp_portno_names->port_no == port_no) {
1037 return odp_portno_names->name;
1044 odp_portno_names_destroy(struct hmap *portno_names)
1046 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1047 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1048 hmap_node, portno_names) {
1049 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1050 free(odp_portno_names->name);
1051 free(odp_portno_names);
1056 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1057 const struct hmap *portno_names, struct ds *ds,
1060 struct flow_tnl tun_key;
1061 enum ovs_key_attr attr = nl_attr_type(a);
1062 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1066 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1068 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1071 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1072 if (expected_len != -2) {
1073 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1074 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1076 if (bad_key_len || bad_mask_len) {
1078 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1079 nl_attr_get_size(a), expected_len);
1081 format_generic_odp_key(a, ds);
1083 ds_put_char(ds, '/');
1085 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1086 nl_attr_get_size(ma), expected_len);
1088 format_generic_odp_key(ma, ds);
1090 ds_put_char(ds, ')');
1096 ds_put_char(ds, '(');
1098 case OVS_KEY_ATTR_ENCAP:
1099 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1100 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1101 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1103 } else if (nl_attr_get_size(a)) {
1104 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1109 case OVS_KEY_ATTR_PRIORITY:
1110 case OVS_KEY_ATTR_SKB_MARK:
1111 case OVS_KEY_ATTR_DP_HASH:
1112 case OVS_KEY_ATTR_RECIRC_ID:
1113 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1115 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1119 case OVS_KEY_ATTR_TUNNEL:
1120 memset(&tun_key, 0, sizeof tun_key);
1121 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1122 ds_put_format(ds, "error");
1123 } else if (!is_exact) {
1124 struct flow_tnl tun_mask;
1126 memset(&tun_mask, 0, sizeof tun_mask);
1127 odp_tun_key_from_attr(ma, &tun_mask);
1128 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1129 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1130 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1132 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1133 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1134 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1135 tun_key.ip_tos, tun_mask.ip_tos,
1136 tun_key.ip_ttl, tun_mask.ip_ttl);
1138 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1140 /* XXX This code is correct, but enabling it would break the unit
1141 test. Disable it for now until the input parser is fixed.
1143 ds_put_char(ds, '/');
1144 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1146 ds_put_char(ds, ')');
1148 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1149 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1150 ntohll(tun_key.tun_id),
1151 IP_ARGS(tun_key.ip_src),
1152 IP_ARGS(tun_key.ip_dst),
1153 tun_key.ip_tos, tun_key.ip_ttl);
1155 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1156 ds_put_char(ds, ')');
1160 case OVS_KEY_ATTR_IN_PORT:
1161 if (portno_names && verbose && is_exact) {
1162 char *name = odp_portno_names_get(portno_names,
1163 u32_to_odp(nl_attr_get_u32(a)));
1165 ds_put_format(ds, "%s", name);
1167 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1170 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1172 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1177 case OVS_KEY_ATTR_ETHERNET:
1179 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1180 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1182 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1183 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1184 ETH_ADDR_ARGS(eth_key->eth_src),
1185 ETH_ADDR_ARGS(eth_mask->eth_src),
1186 ETH_ADDR_ARGS(eth_key->eth_dst),
1187 ETH_ADDR_ARGS(eth_mask->eth_dst));
1189 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1191 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1192 ETH_ADDR_ARGS(eth_key->eth_src),
1193 ETH_ADDR_ARGS(eth_key->eth_dst));
1197 case OVS_KEY_ATTR_VLAN:
1199 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1201 ovs_be16 mask = nl_attr_get_be16(ma);
1202 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1203 vlan_tci_to_vid(vlan_tci),
1204 vlan_tci_to_vid(mask),
1205 vlan_tci_to_pcp(vlan_tci),
1206 vlan_tci_to_pcp(mask),
1207 vlan_tci_to_cfi(vlan_tci),
1208 vlan_tci_to_cfi(mask));
1210 format_vlan_tci(ds, vlan_tci);
1215 case OVS_KEY_ATTR_MPLS: {
1216 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1217 const struct ovs_key_mpls *mpls_mask = NULL;
1218 size_t size = nl_attr_get_size(a);
1220 if (!size || size % sizeof *mpls_key) {
1221 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1222 nl_attr_get_size(a));
1226 mpls_mask = nl_attr_get(ma);
1227 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1228 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1229 "mask length %"PRIuSIZE")",
1230 nl_attr_get_size(a), nl_attr_get_size(ma));
1234 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1238 case OVS_KEY_ATTR_ETHERTYPE:
1239 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1241 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1245 case OVS_KEY_ATTR_IPV4:
1247 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1248 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1250 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1251 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1252 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1253 IP_ARGS(ipv4_key->ipv4_src),
1254 IP_ARGS(ipv4_mask->ipv4_src),
1255 IP_ARGS(ipv4_key->ipv4_dst),
1256 IP_ARGS(ipv4_mask->ipv4_dst),
1257 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1258 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1259 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1260 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1261 ipv4_mask->ipv4_frag);
1263 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1265 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1266 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1267 IP_ARGS(ipv4_key->ipv4_src),
1268 IP_ARGS(ipv4_key->ipv4_dst),
1269 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1271 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1275 case OVS_KEY_ATTR_IPV6:
1277 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1278 char src_str[INET6_ADDRSTRLEN];
1279 char dst_str[INET6_ADDRSTRLEN];
1280 char src_mask[INET6_ADDRSTRLEN];
1281 char dst_mask[INET6_ADDRSTRLEN];
1283 ipv6_key = nl_attr_get(a);
1284 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1285 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1287 ipv6_mask = nl_attr_get(ma);
1288 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1289 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1291 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1292 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1293 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1294 src_str, src_mask, dst_str, dst_mask,
1295 ntohl(ipv6_key->ipv6_label),
1296 ntohl(ipv6_mask->ipv6_label),
1297 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1298 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1299 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1300 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1301 ipv6_mask->ipv6_frag);
1303 const struct ovs_key_ipv6 *ipv6_key;
1304 char src_str[INET6_ADDRSTRLEN];
1305 char dst_str[INET6_ADDRSTRLEN];
1307 ipv6_key = nl_attr_get(a);
1308 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1309 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1311 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1312 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1313 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1314 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1315 ipv6_key->ipv6_hlimit,
1316 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1320 case OVS_KEY_ATTR_TCP:
1322 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1323 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1325 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1326 ",dst=%"PRIu16"/%#"PRIx16,
1327 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1328 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1330 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1332 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1333 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1337 case OVS_KEY_ATTR_TCP_FLAGS:
1338 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1340 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1344 case OVS_KEY_ATTR_UDP:
1346 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1347 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1349 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1350 ",dst=%"PRIu16"/%#"PRIx16,
1351 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1352 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1354 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1356 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1357 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1361 case OVS_KEY_ATTR_SCTP:
1363 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1364 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1366 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1367 ",dst=%"PRIu16"/%#"PRIx16,
1368 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1369 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1371 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1373 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1374 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1378 case OVS_KEY_ATTR_ICMP:
1380 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1381 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1383 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1384 icmp_key->icmp_type, icmp_mask->icmp_type,
1385 icmp_key->icmp_code, icmp_mask->icmp_code);
1387 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1389 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1390 icmp_key->icmp_type, icmp_key->icmp_code);
1394 case OVS_KEY_ATTR_ICMPV6:
1396 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1397 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1399 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1400 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1401 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1403 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1405 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1406 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1410 case OVS_KEY_ATTR_ARP:
1412 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1413 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1415 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1416 ",op=%"PRIu16"/%#"PRIx16
1417 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1418 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1419 IP_ARGS(arp_key->arp_sip),
1420 IP_ARGS(arp_mask->arp_sip),
1421 IP_ARGS(arp_key->arp_tip),
1422 IP_ARGS(arp_mask->arp_tip),
1423 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1424 ETH_ADDR_ARGS(arp_key->arp_sha),
1425 ETH_ADDR_ARGS(arp_mask->arp_sha),
1426 ETH_ADDR_ARGS(arp_key->arp_tha),
1427 ETH_ADDR_ARGS(arp_mask->arp_tha));
1429 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1431 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1432 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1433 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1434 ntohs(arp_key->arp_op),
1435 ETH_ADDR_ARGS(arp_key->arp_sha),
1436 ETH_ADDR_ARGS(arp_key->arp_tha));
1440 case OVS_KEY_ATTR_ND: {
1441 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1442 char target[INET6_ADDRSTRLEN];
1444 nd_key = nl_attr_get(a);
1446 nd_mask = nl_attr_get(ma);
1449 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1450 ds_put_format(ds, "target=%s", target);
1452 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1453 ds_put_format(ds, "/%s", target);
1456 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1457 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1458 ETH_ADDR_ARGS(nd_key->nd_sll));
1460 ds_put_format(ds, "/"ETH_ADDR_FMT,
1461 ETH_ADDR_ARGS(nd_mask->nd_sll));
1464 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1465 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1466 ETH_ADDR_ARGS(nd_key->nd_tll));
1468 ds_put_format(ds, "/"ETH_ADDR_FMT,
1469 ETH_ADDR_ARGS(nd_mask->nd_tll));
1474 case OVS_KEY_ATTR_UNSPEC:
1475 case __OVS_KEY_ATTR_MAX:
1477 format_generic_odp_key(a, ds);
1479 ds_put_char(ds, '/');
1480 format_generic_odp_key(ma, ds);
1484 ds_put_char(ds, ')');
1487 static struct nlattr *
1488 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1490 const struct nlattr *a;
1492 int type = nl_attr_type(key);
1493 int size = nl_attr_get_size(key);
1495 if (odp_flow_key_attr_len(type) >=0) {
1496 nl_msg_put_unspec_zero(ofp, type, size);
1500 nested_mask = nl_msg_start_nested(ofp, type);
1501 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1502 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1504 nl_msg_end_nested(ofp, nested_mask);
1507 return ofpbuf_base(ofp);
1510 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1511 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1512 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1513 * non-null and 'verbose' is true, translates odp port number to its name. */
1515 odp_flow_format(const struct nlattr *key, size_t key_len,
1516 const struct nlattr *mask, size_t mask_len,
1517 const struct hmap *portno_names, struct ds *ds, bool verbose)
1520 const struct nlattr *a;
1522 bool has_ethtype_key = false;
1523 const struct nlattr *ma = NULL;
1525 bool first_field = true;
1527 ofpbuf_init(&ofp, 100);
1528 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1529 bool is_nested_attr;
1530 bool is_wildcard = false;
1531 int attr_type = nl_attr_type(a);
1533 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1534 has_ethtype_key = true;
1537 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1539 if (mask && mask_len) {
1540 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1541 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1544 if (verbose || !is_wildcard || is_nested_attr) {
1545 if (is_wildcard && !ma) {
1546 ma = generate_all_wildcard_mask(&ofp, a);
1549 ds_put_char(ds, ',');
1551 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1552 first_field = false;
1556 ofpbuf_uninit(&ofp);
1561 if (left == key_len) {
1562 ds_put_cstr(ds, "<empty>");
1564 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1565 for (i = 0; i < left; i++) {
1566 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1568 ds_put_char(ds, ')');
1570 if (!has_ethtype_key) {
1571 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1573 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1574 ntohs(nl_attr_get_be16(ma)));
1578 ds_put_cstr(ds, "<empty>");
1582 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1583 * OVS_KEY_ATTR_* attributes in 'key'. */
1585 odp_flow_key_format(const struct nlattr *key,
1586 size_t key_len, struct ds *ds)
1588 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1592 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1593 const uint8_t *nd_tll, struct ofpbuf *key)
1596 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1600 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1603 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1607 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1608 const uint8_t *nd_tll, struct ofpbuf *key)
1610 struct ovs_key_nd nd_key;
1612 memset(&nd_key, 0, sizeof nd_key);
1614 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1618 put_nd(&nd_key, nd_sll, nd_tll, key);
1623 put_nd_mask(int n, const char *nd_target_s,
1624 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1626 struct ovs_key_nd nd_mask;
1628 memset(&nd_mask, 0xff, sizeof nd_mask);
1630 if (strlen(nd_target_s) != 0 &&
1631 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1635 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1640 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1642 if (!strcasecmp(s, "no")) {
1643 *type = OVS_FRAG_TYPE_NONE;
1644 } else if (!strcasecmp(s, "first")) {
1645 *type = OVS_FRAG_TYPE_FIRST;
1646 } else if (!strcasecmp(s, "later")) {
1647 *type = OVS_FRAG_TYPE_LATER;
1655 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1657 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1658 (mpls_tc << MPLS_TC_SHIFT) |
1659 (mpls_ttl << MPLS_TTL_SHIFT) |
1660 (mpls_bos << MPLS_BOS_SHIFT)));
1664 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1665 struct ofpbuf *key, struct ofpbuf *mask)
1669 uint32_t priority_mask;
1672 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1673 &priority, &priority_mask, &n)) {
1674 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1675 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1677 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1678 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1680 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1691 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1693 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1694 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1696 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1697 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1699 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1709 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1710 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1711 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1718 uint32_t dp_hash_mask;
1721 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1722 &dp_hash_mask, &n)) {
1723 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1724 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1726 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1727 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1729 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1736 uint64_t tun_id, tun_id_mask;
1737 struct flow_tnl tun_key, tun_key_mask;
1740 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1741 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1742 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1743 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1744 &tun_id, &tun_id_mask,
1745 IP_SCAN_ARGS(&tun_key.ip_src),
1746 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1747 IP_SCAN_ARGS(&tun_key.ip_dst),
1748 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1749 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1750 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1754 tun_key.tun_id = htonll(tun_id);
1755 tun_key_mask.tun_id = htonll(tun_id_mask);
1756 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1757 tun_key.flags = flags;
1758 tun_key_mask.flags = UINT16_MAX;
1768 tun_key_to_attr(key, &tun_key);
1770 tun_key_to_attr(mask, &tun_key_mask);
1773 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1774 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1775 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1776 IP_SCAN_ARGS(&tun_key.ip_src),
1777 IP_SCAN_ARGS(&tun_key.ip_dst),
1778 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1782 tun_key.tun_id = htonll(tun_id);
1783 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1784 tun_key.flags = flags;
1794 tun_key_to_attr(key, &tun_key);
1797 memset(&tun_key, 0xff, sizeof tun_key);
1798 tun_key_to_attr(mask, &tun_key);
1806 uint32_t in_port_mask;
1809 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1810 &in_port, &in_port_mask, &n)) {
1811 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1812 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1814 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1815 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1817 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1824 if (port_names && !strncmp(s, "in_port(", 8)) {
1826 const struct simap_node *node;
1830 name_len = strcspn(name, ")");
1831 node = simap_find_len(port_names, name, name_len);
1833 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1836 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1838 return 8 + name_len + 1;
1843 struct ovs_key_ethernet eth_key;
1844 struct ovs_key_ethernet eth_key_mask;
1847 if (mask && ovs_scan(s,
1848 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1849 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1850 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1851 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1852 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1853 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1854 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1855 ð_key, sizeof eth_key);
1856 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1857 ð_key_mask, sizeof eth_key_mask);
1859 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1860 "dst="ETH_ADDR_SCAN_FMT")%n",
1861 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1862 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1863 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1864 ð_key, sizeof eth_key);
1867 memset(ð_key, 0xff, sizeof eth_key);
1868 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1869 ð_key, sizeof eth_key);
1881 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1882 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1883 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1884 htons((vid << VLAN_VID_SHIFT) |
1885 (pcp << VLAN_PCP_SHIFT) |
1887 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1888 htons((vid_mask << VLAN_VID_SHIFT) |
1889 (pcp_mask << VLAN_PCP_SHIFT) |
1890 (1 << VLAN_CFI_SHIFT)));
1892 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1893 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1894 htons((vid << VLAN_VID_SHIFT) |
1895 (pcp << VLAN_PCP_SHIFT) |
1898 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1902 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1903 &vid, &vid_mask, &pcp, &pcp_mask,
1904 &cfi, &cfi_mask, &n)) {
1905 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1906 htons((vid << VLAN_VID_SHIFT) |
1907 (pcp << VLAN_PCP_SHIFT) |
1908 (cfi ? VLAN_CFI : 0)));
1909 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1910 htons((vid_mask << VLAN_VID_SHIFT) |
1911 (pcp_mask << VLAN_PCP_SHIFT) |
1912 (cfi_mask << VLAN_CFI_SHIFT)));
1914 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1915 &vid, &pcp, &cfi, &n)) {
1916 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1917 htons((vid << VLAN_VID_SHIFT) |
1918 (pcp << VLAN_PCP_SHIFT) |
1919 (cfi ? VLAN_CFI : 0)));
1921 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1932 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1933 ð_type, ð_type_mask, &n)) {
1934 if (eth_type != 0) {
1935 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1937 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1939 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1940 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1942 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
1949 int label, tc, ttl, bos;
1950 int label_mask, tc_mask, ttl_mask, bos_mask;
1953 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
1954 "ttl=%i/%i,bos=%i/%i)%n",
1955 &label, &label_mask, &tc, &tc_mask,
1956 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
1957 struct ovs_key_mpls *mpls, *mpls_mask;
1959 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1961 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1963 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1965 mpls_mask->mpls_lse = mpls_lse_from_components(
1966 label_mask, tc_mask, ttl_mask, bos_mask);
1968 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
1969 &label, &tc, &ttl, &bos, &n)) {
1970 struct ovs_key_mpls *mpls;
1972 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1974 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1976 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1978 mpls->mpls_lse = OVS_BE32_MAX;
1986 struct ovs_key_ipv4 ipv4_key;
1987 struct ovs_key_ipv4 ipv4_mask;
1990 enum ovs_frag_type ipv4_frag;
1994 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1995 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1996 "proto=%"SCNi8"/%"SCNi8","
1997 "tos=%"SCNi8"/%"SCNi8","
1998 "ttl=%"SCNi8"/%"SCNi8","
1999 "frag=%7[a-z]/%"SCNi8")%n",
2000 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2001 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
2002 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2003 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
2004 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
2005 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
2006 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
2007 frag, &ipv4_mask.ipv4_frag, &n)
2008 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2009 ipv4_key.ipv4_frag = ipv4_frag;
2010 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2011 &ipv4_key, sizeof ipv4_key);
2013 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2014 &ipv4_mask, sizeof ipv4_mask);
2016 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
2017 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
2019 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2020 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2021 &ipv4_key.ipv4_proto,
2025 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2026 ipv4_key.ipv4_frag = ipv4_frag;
2027 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2028 &ipv4_key, sizeof ipv4_key);
2031 memset(&ipv4_key, 0xff, sizeof ipv4_key);
2032 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2033 &ipv4_key, sizeof ipv4_key);
2040 char ipv6_src_s[IPV6_SCAN_LEN + 1];
2041 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
2042 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
2043 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
2044 int ipv6_label, ipv6_label_mask;
2045 int ipv6_proto, ipv6_proto_mask;
2046 int ipv6_tclass, ipv6_tclass_mask;
2047 int ipv6_hlimit, ipv6_hlimit_mask;
2049 enum ovs_frag_type ipv6_frag;
2053 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2054 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2055 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2056 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2057 ipv6_src_s, ipv6_src_mask_s,
2058 ipv6_dst_s, ipv6_dst_mask_s,
2059 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2060 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2061 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2062 &ipv6_frag_mask, &n)
2063 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2064 struct ovs_key_ipv6 ipv6_key;
2065 struct ovs_key_ipv6 ipv6_mask;
2067 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2068 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2069 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2070 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2074 ipv6_key.ipv6_label = htonl(ipv6_label);
2075 ipv6_key.ipv6_proto = ipv6_proto;
2076 ipv6_key.ipv6_tclass = ipv6_tclass;
2077 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2078 ipv6_key.ipv6_frag = ipv6_frag;
2079 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2080 &ipv6_key, sizeof ipv6_key);
2082 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2083 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2084 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2085 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2086 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2087 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2088 &ipv6_mask, sizeof ipv6_mask);
2090 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2091 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2093 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2094 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2095 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2096 struct ovs_key_ipv6 ipv6_key;
2098 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2099 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2102 ipv6_key.ipv6_label = htonl(ipv6_label);
2103 ipv6_key.ipv6_proto = ipv6_proto;
2104 ipv6_key.ipv6_tclass = ipv6_tclass;
2105 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2106 ipv6_key.ipv6_frag = ipv6_frag;
2107 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2108 &ipv6_key, sizeof ipv6_key);
2111 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2112 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2113 &ipv6_key, sizeof ipv6_key);
2126 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2127 &tcp_src, &tcp_src_mask, &tcp_dst,
2128 &tcp_dst_mask, &n)) {
2129 struct ovs_key_tcp tcp_key;
2130 struct ovs_key_tcp tcp_mask;
2132 tcp_key.tcp_src = htons(tcp_src);
2133 tcp_key.tcp_dst = htons(tcp_dst);
2134 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2136 tcp_mask.tcp_src = htons(tcp_src_mask);
2137 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2138 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2139 &tcp_mask, sizeof tcp_mask);
2141 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2142 &tcp_src, &tcp_dst, &n)) {
2143 struct ovs_key_tcp tcp_key;
2145 tcp_key.tcp_src = htons(tcp_src);
2146 tcp_key.tcp_dst = htons(tcp_dst);
2147 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2150 memset(&tcp_key, 0xff, sizeof tcp_key);
2151 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2152 &tcp_key, sizeof tcp_key);
2159 uint16_t tcp_flags, tcp_flags_mask;
2162 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2163 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2164 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2165 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2167 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2168 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2170 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2184 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2185 &udp_src, &udp_src_mask,
2186 &udp_dst, &udp_dst_mask, &n)) {
2187 struct ovs_key_udp udp_key;
2188 struct ovs_key_udp udp_mask;
2190 udp_key.udp_src = htons(udp_src);
2191 udp_key.udp_dst = htons(udp_dst);
2192 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2194 udp_mask.udp_src = htons(udp_src_mask);
2195 udp_mask.udp_dst = htons(udp_dst_mask);
2196 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2197 &udp_mask, sizeof udp_mask);
2200 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2201 struct ovs_key_udp udp_key;
2203 udp_key.udp_src = htons(udp_src);
2204 udp_key.udp_dst = htons(udp_dst);
2205 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2208 memset(&udp_key, 0xff, sizeof udp_key);
2209 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2222 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2223 &sctp_src, &sctp_src_mask,
2224 &sctp_dst, &sctp_dst_mask, &n)) {
2225 struct ovs_key_sctp sctp_key;
2226 struct ovs_key_sctp sctp_mask;
2228 sctp_key.sctp_src = htons(sctp_src);
2229 sctp_key.sctp_dst = htons(sctp_dst);
2230 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2232 sctp_mask.sctp_src = htons(sctp_src_mask);
2233 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2234 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2235 &sctp_mask, sizeof sctp_mask);
2238 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2239 struct ovs_key_sctp sctp_key;
2241 sctp_key.sctp_src = htons(sctp_src);
2242 sctp_key.sctp_dst = htons(sctp_dst);
2243 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2246 memset(&sctp_key, 0xff, sizeof sctp_key);
2247 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2254 struct ovs_key_icmp icmp_key;
2255 struct ovs_key_icmp icmp_mask;
2258 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2259 "code=%"SCNi8"/%"SCNi8")%n",
2260 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2261 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2262 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2263 &icmp_key, sizeof icmp_key);
2264 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2265 &icmp_mask, sizeof icmp_mask);
2267 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2268 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2269 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2270 &icmp_key, sizeof icmp_key);
2272 memset(&icmp_key, 0xff, sizeof icmp_key);
2273 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2281 struct ovs_key_icmpv6 icmpv6_key;
2282 struct ovs_key_icmpv6 icmpv6_mask;
2285 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2286 "code=%"SCNi8"/%"SCNi8")%n",
2287 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2288 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2290 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2291 &icmpv6_key, sizeof icmpv6_key);
2292 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2293 sizeof icmpv6_mask);
2295 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2296 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2298 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2299 &icmpv6_key, sizeof icmpv6_key);
2302 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2303 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2311 struct ovs_key_arp arp_key;
2312 struct ovs_key_arp arp_mask;
2313 uint16_t arp_op, arp_op_mask;
2316 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2317 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2318 "op=%"SCNi16"/%"SCNi16","
2319 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2320 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2321 IP_SCAN_ARGS(&arp_key.arp_sip),
2322 IP_SCAN_ARGS(&arp_mask.arp_sip),
2323 IP_SCAN_ARGS(&arp_key.arp_tip),
2324 IP_SCAN_ARGS(&arp_mask.arp_tip),
2325 &arp_op, &arp_op_mask,
2326 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2327 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2328 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2329 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2330 arp_key.arp_op = htons(arp_op);
2331 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2332 arp_mask.arp_op = htons(arp_op_mask);
2333 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2334 &arp_mask, sizeof arp_mask);
2336 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2337 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2338 "tha="ETH_ADDR_SCAN_FMT")%n",
2339 IP_SCAN_ARGS(&arp_key.arp_sip),
2340 IP_SCAN_ARGS(&arp_key.arp_tip),
2342 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2343 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2344 arp_key.arp_op = htons(arp_op);
2345 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2348 memset(&arp_key, 0xff, sizeof arp_key);
2349 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2350 &arp_key, sizeof arp_key);
2357 char nd_target_s[IPV6_SCAN_LEN + 1];
2358 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2359 uint8_t nd_sll[ETH_ADDR_LEN];
2360 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2361 uint8_t nd_tll[ETH_ADDR_LEN];
2362 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2365 nd_target_mask_s[0] = 0;
2366 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2367 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2369 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2370 nd_target_s, nd_target_mask_s, &n)) {
2371 put_nd_key(n, nd_target_s, NULL, NULL, key);
2372 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2373 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2375 put_nd_key(n, nd_target_s, NULL, NULL, key);
2377 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2380 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2381 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2382 nd_target_s, nd_target_mask_s,
2383 ETH_ADDR_SCAN_ARGS(nd_sll),
2384 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2385 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2386 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2387 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2388 "sll="ETH_ADDR_SCAN_FMT")%n",
2389 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2390 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2392 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2395 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2396 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2397 nd_target_s, nd_target_mask_s,
2398 ETH_ADDR_SCAN_ARGS(nd_tll),
2399 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2400 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2401 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2402 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2403 "tll="ETH_ADDR_SCAN_FMT")%n",
2404 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2405 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2407 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2410 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2411 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2412 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2413 nd_target_s, nd_target_mask_s,
2414 ETH_ADDR_SCAN_ARGS(nd_sll),
2415 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2416 ETH_ADDR_SCAN_ARGS(nd_tll),
2417 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2419 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2420 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2421 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2422 "sll="ETH_ADDR_SCAN_FMT","
2423 "tll="ETH_ADDR_SCAN_FMT")%n",
2424 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2425 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2426 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2428 put_nd_mask(n, nd_target_mask_s,
2429 nd_sll_mask, nd_tll_mask, mask);
2438 if (!strncmp(s, "encap(", 6)) {
2439 const char *start = s;
2440 size_t encap, encap_mask = 0;
2442 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2444 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2451 s += strspn(s, ", \t\r\n");
2454 } else if (*s == ')') {
2458 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2466 nl_msg_end_nested(key, encap);
2468 nl_msg_end_nested(mask, encap_mask);
2477 /* Parses the string representation of a datapath flow key, in the
2478 * format output by odp_flow_key_format(). Returns 0 if successful,
2479 * otherwise a positive errno value. On success, the flow key is
2480 * appended to 'key' as a series of Netlink attributes. On failure, no
2481 * data is appended to 'key'. Either way, 'key''s data might be
2484 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2485 * to a port number. (Port names may be used instead of port numbers in
2488 * On success, the attributes appended to 'key' are individually syntactically
2489 * valid, but they may not be valid as a sequence. 'key' might, for example,
2490 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2492 odp_flow_from_string(const char *s, const struct simap *port_names,
2493 struct ofpbuf *key, struct ofpbuf *mask)
2495 const size_t old_size = ofpbuf_size(key);
2499 s += strspn(s, delimiters);
2504 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2506 ofpbuf_set_size(key, old_size);
2516 ovs_to_odp_frag(uint8_t nw_frag)
2518 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2519 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2520 : OVS_FRAG_TYPE_LATER);
2524 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2526 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2528 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2529 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2535 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2536 const struct flow *mask, odp_port_t odp_in_port,
2537 size_t max_mpls_depth, bool recirc, bool export_mask)
2539 struct ovs_key_ethernet *eth_key;
2541 const struct flow *data = export_mask ? mask : flow;
2543 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2545 if (flow->tunnel.ip_dst || export_mask) {
2546 tun_key_to_attr(buf, &data->tunnel);
2549 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2552 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2553 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2556 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2557 * is not the magical value "ODPP_NONE". */
2558 if (export_mask || odp_in_port != ODPP_NONE) {
2559 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2562 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2564 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2565 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2567 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2569 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2571 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2573 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2574 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2575 if (flow->vlan_tci == htons(0)) {
2582 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2583 /* For backwards compatibility with kernels that don't support
2584 * wildcarding, the following convention is used to encode the
2585 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2588 * -------- -------- -------
2589 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2590 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2591 * <none> 0xffff Any non-Ethernet II frame (except valid
2592 * 802.3 SNAP packet with valid eth_type).
2595 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2600 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2602 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2603 struct ovs_key_ipv4 *ipv4_key;
2605 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2607 ipv4_key->ipv4_src = data->nw_src;
2608 ipv4_key->ipv4_dst = data->nw_dst;
2609 ipv4_key->ipv4_proto = data->nw_proto;
2610 ipv4_key->ipv4_tos = data->nw_tos;
2611 ipv4_key->ipv4_ttl = data->nw_ttl;
2612 ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2613 : ovs_to_odp_frag(data->nw_frag);
2614 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2615 struct ovs_key_ipv6 *ipv6_key;
2617 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2619 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2620 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2621 ipv6_key->ipv6_label = data->ipv6_label;
2622 ipv6_key->ipv6_proto = data->nw_proto;
2623 ipv6_key->ipv6_tclass = data->nw_tos;
2624 ipv6_key->ipv6_hlimit = data->nw_ttl;
2625 ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2626 : ovs_to_odp_frag(data->nw_frag);
2627 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2628 flow->dl_type == htons(ETH_TYPE_RARP)) {
2629 struct ovs_key_arp *arp_key;
2631 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2633 arp_key->arp_sip = data->nw_src;
2634 arp_key->arp_tip = data->nw_dst;
2635 arp_key->arp_op = htons(data->nw_proto);
2636 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2637 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2638 } else if (eth_type_mpls(flow->dl_type)) {
2639 struct ovs_key_mpls *mpls_key;
2642 n = flow_count_mpls_labels(flow, NULL);
2643 n = MIN(n, max_mpls_depth);
2644 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2645 n * sizeof *mpls_key);
2646 for (i = 0; i < n; i++) {
2647 mpls_key[i].mpls_lse = data->mpls_lse[i];
2651 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2652 if (flow->nw_proto == IPPROTO_TCP) {
2653 struct ovs_key_tcp *tcp_key;
2655 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2657 tcp_key->tcp_src = data->tp_src;
2658 tcp_key->tcp_dst = data->tp_dst;
2660 if (data->tcp_flags) {
2661 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2663 } else if (flow->nw_proto == IPPROTO_UDP) {
2664 struct ovs_key_udp *udp_key;
2666 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2668 udp_key->udp_src = data->tp_src;
2669 udp_key->udp_dst = data->tp_dst;
2670 } else if (flow->nw_proto == IPPROTO_SCTP) {
2671 struct ovs_key_sctp *sctp_key;
2673 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2675 sctp_key->sctp_src = data->tp_src;
2676 sctp_key->sctp_dst = data->tp_dst;
2677 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2678 && flow->nw_proto == IPPROTO_ICMP) {
2679 struct ovs_key_icmp *icmp_key;
2681 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2683 icmp_key->icmp_type = ntohs(data->tp_src);
2684 icmp_key->icmp_code = ntohs(data->tp_dst);
2685 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2686 && flow->nw_proto == IPPROTO_ICMPV6) {
2687 struct ovs_key_icmpv6 *icmpv6_key;
2689 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2690 sizeof *icmpv6_key);
2691 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2692 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2694 if (flow->tp_dst == htons(0)
2695 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
2696 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
2697 && (!export_mask || (data->tp_src == htons(0xffff)
2698 && data->tp_dst == htons(0xffff)))) {
2700 struct ovs_key_nd *nd_key;
2702 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2704 memcpy(nd_key->nd_target, &data->nd_target,
2705 sizeof nd_key->nd_target);
2706 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2707 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2714 nl_msg_end_nested(buf, encap);
2718 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2719 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2720 * number rather than a datapath port number). Instead, if 'odp_in_port'
2721 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2724 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2725 * capable of being expanded to allow for that much space.
2727 * 'recirc' indicates support for recirculation fields. If this is true, then
2728 * these fields will always be serialised. */
2730 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2731 const struct flow *mask, odp_port_t odp_in_port,
2734 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
2738 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2739 * 'buf'. 'flow' is used as a template to determine how to interpret
2740 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2741 * it doesn't indicate whether the other fields should be interpreted as
2742 * ARP, IPv4, IPv6, etc.
2744 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2745 * capable of being expanded to allow for that much space.
2747 * 'recirc' indicates support for recirculation fields. If this is true, then
2748 * these fields will always be serialised. */
2750 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2751 const struct flow *flow, uint32_t odp_in_port_mask,
2752 size_t max_mpls_depth, bool recirc)
2754 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
2755 max_mpls_depth, recirc, true);
2758 /* Generate ODP flow key from the given packet metadata */
2760 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2762 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2764 if (md->tunnel.ip_dst) {
2765 tun_key_to_attr(buf, &md->tunnel);
2768 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2770 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2771 * value "ODPP_NONE". */
2772 if (md->in_port.odp_port != ODPP_NONE) {
2773 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2777 /* Generate packet metadata from the given ODP flow key. */
2779 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2780 struct pkt_metadata *md)
2782 const struct nlattr *nla;
2784 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2785 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2786 1u << OVS_KEY_ATTR_IN_PORT;
2788 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2790 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2791 uint16_t type = nl_attr_type(nla);
2792 size_t len = nl_attr_get_size(nla);
2793 int expected_len = odp_flow_key_attr_len(type);
2795 if (len != expected_len && expected_len >= 0) {
2800 case OVS_KEY_ATTR_RECIRC_ID:
2801 md->recirc_id = nl_attr_get_u32(nla);
2802 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
2804 case OVS_KEY_ATTR_DP_HASH:
2805 md->dp_hash = nl_attr_get_u32(nla);
2806 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
2808 case OVS_KEY_ATTR_PRIORITY:
2809 md->skb_priority = nl_attr_get_u32(nla);
2810 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2812 case OVS_KEY_ATTR_SKB_MARK:
2813 md->pkt_mark = nl_attr_get_u32(nla);
2814 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2816 case OVS_KEY_ATTR_TUNNEL: {
2817 enum odp_key_fitness res;
2819 res = odp_tun_key_from_attr(nla, &md->tunnel);
2820 if (res == ODP_FIT_ERROR) {
2821 memset(&md->tunnel, 0, sizeof md->tunnel);
2822 } else if (res == ODP_FIT_PERFECT) {
2823 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2827 case OVS_KEY_ATTR_IN_PORT:
2828 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2829 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2835 if (!wanted_attrs) {
2836 return; /* Have everything. */
2842 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2844 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2845 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2846 key_len / sizeof(uint32_t), 0);
2850 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2851 uint64_t attrs, int out_of_range_attr,
2852 const struct nlattr *key, size_t key_len)
2857 if (VLOG_DROP_DBG(rl)) {
2862 for (i = 0; i < 64; i++) {
2863 if (attrs & (UINT64_C(1) << i)) {
2864 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2866 ds_put_format(&s, " %s",
2867 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2870 if (out_of_range_attr) {
2871 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2874 ds_put_cstr(&s, ": ");
2875 odp_flow_key_format(key, key_len, &s);
2877 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2882 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2884 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2886 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2887 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2891 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2892 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2893 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2894 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2901 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2902 const struct nlattr *attrs[], uint64_t *present_attrsp,
2903 int *out_of_range_attrp)
2905 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2906 const struct nlattr *nla;
2907 uint64_t present_attrs;
2910 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2912 *out_of_range_attrp = 0;
2913 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2914 uint16_t type = nl_attr_type(nla);
2915 size_t len = nl_attr_get_size(nla);
2916 int expected_len = odp_flow_key_attr_len(type);
2918 if (len != expected_len && expected_len >= 0) {
2919 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2921 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2922 "length %d", ovs_key_attr_to_string(type, namebuf,
2928 if (type > OVS_KEY_ATTR_MAX) {
2929 *out_of_range_attrp = type;
2931 if (present_attrs & (UINT64_C(1) << type)) {
2932 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2934 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2935 ovs_key_attr_to_string(type,
2936 namebuf, sizeof namebuf));
2940 present_attrs |= UINT64_C(1) << type;
2945 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2949 *present_attrsp = present_attrs;
2953 static enum odp_key_fitness
2954 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2955 uint64_t expected_attrs,
2956 const struct nlattr *key, size_t key_len)
2958 uint64_t missing_attrs;
2959 uint64_t extra_attrs;
2961 missing_attrs = expected_attrs & ~present_attrs;
2962 if (missing_attrs) {
2963 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2964 log_odp_key_attributes(&rl, "expected but not present",
2965 missing_attrs, 0, key, key_len);
2966 return ODP_FIT_TOO_LITTLE;
2969 extra_attrs = present_attrs & ~expected_attrs;
2970 if (extra_attrs || out_of_range_attr) {
2971 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2972 log_odp_key_attributes(&rl, "present but not expected",
2973 extra_attrs, out_of_range_attr, key, key_len);
2974 return ODP_FIT_TOO_MUCH;
2977 return ODP_FIT_PERFECT;
2981 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2982 uint64_t present_attrs, uint64_t *expected_attrs,
2983 struct flow *flow, const struct flow *src_flow)
2985 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2986 bool is_mask = flow != src_flow;
2988 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2989 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2990 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2991 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2992 ntohs(flow->dl_type));
2995 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2996 flow->dl_type != htons(0xffff)) {
2999 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
3002 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
3003 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
3004 /* See comments in odp_flow_key_from_flow__(). */
3005 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
3012 static enum odp_key_fitness
3013 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3014 uint64_t present_attrs, int out_of_range_attr,
3015 uint64_t expected_attrs, struct flow *flow,
3016 const struct nlattr *key, size_t key_len,
3017 const struct flow *src_flow)
3019 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3020 bool is_mask = src_flow != flow;
3021 const void *check_start = NULL;
3022 size_t check_len = 0;
3023 enum ovs_key_attr expected_bit = 0xff;
3025 if (eth_type_mpls(src_flow->dl_type)) {
3026 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
3027 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
3028 int n = size / sizeof(ovs_be32);
3031 if (!size || size % sizeof(ovs_be32)) {
3032 return ODP_FIT_ERROR;
3036 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3038 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
3039 return ODP_FIT_TOO_LITTLE;
3041 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
3042 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
3043 return ODP_FIT_ERROR;
3045 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3048 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3049 flow->mpls_lse[i] = mpls_lse[i];
3051 if (n > FLOW_MAX_MPLS_LABELS) {
3052 return ODP_FIT_TOO_MUCH;
3056 /* BOS may be set only in the innermost label. */
3057 for (i = 0; i < n - 1; i++) {
3058 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3059 return ODP_FIT_ERROR;
3063 /* BOS must be set in the innermost label. */
3064 if (n < FLOW_MAX_MPLS_LABELS
3065 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3066 return ODP_FIT_TOO_LITTLE;
3071 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3073 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3075 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3076 const struct ovs_key_ipv4 *ipv4_key;
3078 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3079 flow->nw_src = ipv4_key->ipv4_src;
3080 flow->nw_dst = ipv4_key->ipv4_dst;
3081 flow->nw_proto = ipv4_key->ipv4_proto;
3082 flow->nw_tos = ipv4_key->ipv4_tos;
3083 flow->nw_ttl = ipv4_key->ipv4_ttl;
3085 flow->nw_frag = ipv4_key->ipv4_frag;
3086 check_start = ipv4_key;
3087 check_len = sizeof *ipv4_key;
3088 expected_bit = OVS_KEY_ATTR_IPV4;
3089 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3090 return ODP_FIT_ERROR;
3093 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3095 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3097 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3098 const struct ovs_key_ipv6 *ipv6_key;
3100 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3101 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3102 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3103 flow->ipv6_label = ipv6_key->ipv6_label;
3104 flow->nw_proto = ipv6_key->ipv6_proto;
3105 flow->nw_tos = ipv6_key->ipv6_tclass;
3106 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3108 flow->nw_frag = ipv6_key->ipv6_frag;
3109 check_start = ipv6_key;
3110 check_len = sizeof *ipv6_key;
3111 expected_bit = OVS_KEY_ATTR_IPV6;
3112 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3113 return ODP_FIT_ERROR;
3116 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3117 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3119 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3121 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3122 const struct ovs_key_arp *arp_key;
3124 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3125 flow->nw_src = arp_key->arp_sip;
3126 flow->nw_dst = arp_key->arp_tip;
3127 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3128 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3129 "key", ntohs(arp_key->arp_op));
3130 return ODP_FIT_ERROR;
3132 flow->nw_proto = ntohs(arp_key->arp_op);
3133 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3134 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3137 check_start = arp_key;
3138 check_len = sizeof *arp_key;
3139 expected_bit = OVS_KEY_ATTR_ARP;
3145 if (check_len > 0) { /* Happens only when 'is_mask'. */
3146 if (!is_all_zeros(check_start, check_len) &&
3147 flow->dl_type != htons(0xffff)) {
3148 return ODP_FIT_ERROR;
3150 expected_attrs |= UINT64_C(1) << expected_bit;
3154 expected_bit = OVS_KEY_ATTR_UNSPEC;
3155 if (src_flow->nw_proto == IPPROTO_TCP
3156 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3157 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3158 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3160 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3162 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3163 const struct ovs_key_tcp *tcp_key;
3165 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3166 flow->tp_src = tcp_key->tcp_src;
3167 flow->tp_dst = tcp_key->tcp_dst;
3168 expected_bit = OVS_KEY_ATTR_TCP;
3170 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3171 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3172 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3174 } else if (src_flow->nw_proto == IPPROTO_UDP
3175 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3176 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3177 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3179 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3181 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3182 const struct ovs_key_udp *udp_key;
3184 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3185 flow->tp_src = udp_key->udp_src;
3186 flow->tp_dst = udp_key->udp_dst;
3187 expected_bit = OVS_KEY_ATTR_UDP;
3189 } else if (src_flow->nw_proto == IPPROTO_SCTP
3190 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3191 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3192 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3194 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3196 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3197 const struct ovs_key_sctp *sctp_key;
3199 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3200 flow->tp_src = sctp_key->sctp_src;
3201 flow->tp_dst = sctp_key->sctp_dst;
3202 expected_bit = OVS_KEY_ATTR_SCTP;
3204 } else if (src_flow->nw_proto == IPPROTO_ICMP
3205 && src_flow->dl_type == htons(ETH_TYPE_IP)
3206 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3208 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3210 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3211 const struct ovs_key_icmp *icmp_key;
3213 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3214 flow->tp_src = htons(icmp_key->icmp_type);
3215 flow->tp_dst = htons(icmp_key->icmp_code);
3216 expected_bit = OVS_KEY_ATTR_ICMP;
3218 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3219 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3220 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3222 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3224 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3225 const struct ovs_key_icmpv6 *icmpv6_key;
3227 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3228 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3229 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3230 expected_bit = OVS_KEY_ATTR_ICMPV6;
3231 if (src_flow->tp_dst == htons(0) &&
3232 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3233 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3235 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3237 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3238 const struct ovs_key_nd *nd_key;
3240 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3241 memcpy(&flow->nd_target, nd_key->nd_target,
3242 sizeof flow->nd_target);
3243 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3244 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3246 if (!is_all_zeros((const uint8_t *) nd_key,
3248 (flow->tp_src != htons(0xffff) ||
3249 flow->tp_dst != htons(0xffff))) {
3250 return ODP_FIT_ERROR;
3252 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3259 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3260 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3261 return ODP_FIT_ERROR;
3263 expected_attrs |= UINT64_C(1) << expected_bit;
3268 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3272 /* Parse 802.1Q header then encapsulated L3 attributes. */
3273 static enum odp_key_fitness
3274 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3275 uint64_t present_attrs, int out_of_range_attr,
3276 uint64_t expected_attrs, struct flow *flow,
3277 const struct nlattr *key, size_t key_len,
3278 const struct flow *src_flow)
3280 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3281 bool is_mask = src_flow != flow;
3283 const struct nlattr *encap
3284 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3285 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3286 enum odp_key_fitness encap_fitness;
3287 enum odp_key_fitness fitness;
3289 /* Calculate fitness of outer attributes. */
3291 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3292 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3294 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3295 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3297 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3298 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3301 fitness = check_expectations(present_attrs, out_of_range_attr,
3302 expected_attrs, key, key_len);
3305 * Remove the TPID from dl_type since it's not the real Ethertype. */
3306 flow->dl_type = htons(0);
3307 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3308 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3311 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3312 return ODP_FIT_TOO_LITTLE;
3313 } else if (flow->vlan_tci == htons(0)) {
3314 /* Corner case for a truncated 802.1Q header. */
3315 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3316 return ODP_FIT_TOO_MUCH;
3319 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3320 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3321 "but CFI bit is not set", ntohs(flow->vlan_tci));
3322 return ODP_FIT_ERROR;
3325 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3330 /* Now parse the encapsulated attributes. */
3331 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3332 attrs, &present_attrs, &out_of_range_attr)) {
3333 return ODP_FIT_ERROR;
3337 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3338 return ODP_FIT_ERROR;
3340 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3341 expected_attrs, flow, key, key_len,
3344 /* The overall fitness is the worse of the outer and inner attributes. */
3345 return MAX(fitness, encap_fitness);
3348 static enum odp_key_fitness
3349 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3350 struct flow *flow, const struct flow *src_flow)
3352 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3353 uint64_t expected_attrs;
3354 uint64_t present_attrs;
3355 int out_of_range_attr;
3356 bool is_mask = src_flow != flow;
3358 memset(flow, 0, sizeof *flow);
3360 /* Parse attributes. */
3361 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3362 &out_of_range_attr)) {
3363 return ODP_FIT_ERROR;
3368 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3369 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3370 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3371 } else if (is_mask) {
3372 /* Always exact match recirc_id if it is not specified. */
3373 flow->recirc_id = UINT32_MAX;
3376 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3377 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3378 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3380 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3381 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3382 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3385 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3386 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3387 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3390 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3391 enum odp_key_fitness res;
3393 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3394 if (res == ODP_FIT_ERROR) {
3395 return ODP_FIT_ERROR;
3396 } else if (res == ODP_FIT_PERFECT) {
3397 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3401 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3402 flow->in_port.odp_port
3403 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3404 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3405 } else if (!is_mask) {
3406 flow->in_port.odp_port = ODPP_NONE;
3409 /* Ethernet header. */
3410 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3411 const struct ovs_key_ethernet *eth_key;
3413 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3414 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3415 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3417 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3421 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3424 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3425 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3427 return ODP_FIT_ERROR;
3431 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3432 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3433 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3434 expected_attrs, flow, key, key_len, src_flow);
3437 flow->vlan_tci = htons(0xffff);
3438 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3439 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3440 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3443 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3444 expected_attrs, flow, key, key_len, src_flow);
3447 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3448 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3449 * 'key' fits our expectations for what a flow key should contain.
3451 * The 'in_port' will be the datapath's understanding of the port. The
3452 * caller will need to translate with odp_port_to_ofp_port() if the
3453 * OpenFlow port is needed.
3455 * This function doesn't take the packet itself as an argument because none of
3456 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3457 * it is always possible to infer which additional attribute(s) should appear
3458 * by looking at the attributes for lower-level protocols, e.g. if the network
3459 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3460 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3461 * must be absent. */
3462 enum odp_key_fitness
3463 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3466 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3469 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3470 * structure in 'mask'. 'flow' must be a previously translated flow
3471 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3472 * 'key' fits our expectations for what a flow key should contain. */
3473 enum odp_key_fitness
3474 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3475 struct flow *mask, const struct flow *flow)
3477 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3480 /* Returns 'fitness' as a string, for use in debug messages. */
3482 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3485 case ODP_FIT_PERFECT:
3487 case ODP_FIT_TOO_MUCH:
3489 case ODP_FIT_TOO_LITTLE:
3490 return "too_little";
3498 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3499 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3500 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3501 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3502 * null, then the return value is not meaningful.) */
3504 odp_put_userspace_action(uint32_t pid,
3505 const void *userdata, size_t userdata_size,
3506 struct ofpbuf *odp_actions)
3508 size_t userdata_ofs;
3511 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3512 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3514 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3516 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3517 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3520 * - The kernel rejected shorter userdata with -ERANGE.
3522 * - The kernel silently dropped userdata beyond the first 8 bytes.
3524 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3525 * separately disable features that required more than 8 bytes.) */
3526 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3527 MAX(8, userdata_size)),
3528 userdata, userdata_size);
3532 nl_msg_end_nested(odp_actions, offset);
3534 return userdata_ofs;
3538 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3539 struct ofpbuf *odp_actions)
3541 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3542 tun_key_to_attr(odp_actions, tunnel);
3543 nl_msg_end_nested(odp_actions, offset);
3546 /* The commit_odp_actions() function and its helpers. */
3549 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3550 const void *key, size_t key_size)
3552 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3553 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3554 nl_msg_end_nested(odp_actions, offset);
3558 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3559 struct ofpbuf *odp_actions)
3561 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3565 /* If any of the flow key data that ODP actions can modify are different in
3566 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3567 * 'odp_actions' that change the flow tunneling information in key from
3568 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3569 * same way. In other words, operates the same as commit_odp_actions(), but
3570 * only on tunneling information. */
3572 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3573 struct ofpbuf *odp_actions)
3575 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3576 if (flow->tunnel.ip_dst) {
3577 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3580 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3581 odp_put_tunnel_action(&base->tunnel, odp_actions);
3586 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3587 struct ofpbuf *odp_actions,
3588 struct flow_wildcards *wc)
3590 struct ovs_key_ethernet eth_key;
3592 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3593 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3597 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3598 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3600 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3601 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3603 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3604 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3606 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3607 ð_key, sizeof(eth_key));
3611 pop_vlan(struct flow *base,
3612 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3614 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3616 if (base->vlan_tci & htons(VLAN_CFI)) {
3617 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3623 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3624 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3626 if (base->vlan_tci == vlan_tci) {
3630 pop_vlan(base, odp_actions, wc);
3631 if (vlan_tci & htons(VLAN_CFI)) {
3632 struct ovs_action_push_vlan vlan;
3634 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3635 vlan.vlan_tci = vlan_tci;
3636 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3637 &vlan, sizeof vlan);
3639 base->vlan_tci = vlan_tci;
3643 commit_mpls_action(const struct flow *flow, struct flow *base,
3644 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3646 int base_n = flow_count_mpls_labels(base, wc);
3647 int flow_n = flow_count_mpls_labels(flow, wc);
3648 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3651 while (base_n > common_n) {
3652 if (base_n - 1 == common_n && flow_n > common_n) {
3653 /* If there is only one more LSE in base than there are common
3654 * between base and flow; and flow has at least one more LSE than
3655 * is common then the topmost LSE of base may be updated using
3657 struct ovs_key_mpls mpls_key;
3659 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3660 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3661 &mpls_key, sizeof mpls_key);
3662 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3665 /* Otherwise, if there more LSEs in base than are common between
3666 * base and flow then pop the topmost one. */
3670 /* If all the LSEs are to be popped and this is not the outermost
3671 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3672 * POP_MPLS action instead of flow->dl_type.
3674 * This is because the POP_MPLS action requires its ethertype
3675 * argument to be an MPLS ethernet type but in this case
3676 * flow->dl_type will be a non-MPLS ethernet type.
3678 * When the final POP_MPLS action occurs it use flow->dl_type and
3679 * the and the resulting packet will have the desired dl_type. */
3680 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3681 dl_type = htons(ETH_TYPE_MPLS);
3683 dl_type = flow->dl_type;
3685 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3686 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3692 /* If, after the above popping and setting, there are more LSEs in flow
3693 * than base then some LSEs need to be pushed. */
3694 while (base_n < flow_n) {
3695 struct ovs_action_push_mpls *mpls;
3697 mpls = nl_msg_put_unspec_zero(odp_actions,
3698 OVS_ACTION_ATTR_PUSH_MPLS,
3700 mpls->mpls_ethertype = flow->dl_type;
3701 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3702 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3703 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3709 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3710 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3712 struct ovs_key_ipv4 ipv4_key;
3714 if (base->nw_src == flow->nw_src &&
3715 base->nw_dst == flow->nw_dst &&
3716 base->nw_tos == flow->nw_tos &&
3717 base->nw_ttl == flow->nw_ttl &&
3718 base->nw_frag == flow->nw_frag) {
3722 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3723 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3724 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3725 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3726 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3727 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3729 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3730 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3731 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3732 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3733 ipv4_key.ipv4_proto = base->nw_proto;
3734 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3736 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3737 &ipv4_key, sizeof(ipv4_key));
3741 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3742 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3744 struct ovs_key_ipv6 ipv6_key;
3746 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3747 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3748 base->ipv6_label == flow->ipv6_label &&
3749 base->nw_tos == flow->nw_tos &&
3750 base->nw_ttl == flow->nw_ttl &&
3751 base->nw_frag == flow->nw_frag) {
3755 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3756 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3757 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3758 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3759 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3760 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3761 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3763 base->ipv6_src = flow->ipv6_src;
3764 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3765 base->ipv6_dst = flow->ipv6_dst;
3766 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3768 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3769 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3770 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3771 ipv6_key.ipv6_proto = base->nw_proto;
3772 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3774 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3775 &ipv6_key, sizeof(ipv6_key));
3778 static enum slow_path_reason
3779 commit_set_arp_action(const struct flow *flow, struct flow *base,
3780 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3782 struct ovs_key_arp arp_key;
3784 if (base->nw_src == flow->nw_src &&
3785 base->nw_dst == flow->nw_dst &&
3786 base->nw_proto == flow->nw_proto &&
3787 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3788 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3792 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3793 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3794 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3795 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3796 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3798 base->nw_src = flow->nw_src;
3799 base->nw_dst = flow->nw_dst;
3800 base->nw_proto = flow->nw_proto;
3801 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3802 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3804 arp_key.arp_sip = base->nw_src;
3805 arp_key.arp_tip = base->nw_dst;
3806 arp_key.arp_op = htons(base->nw_proto);
3807 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3808 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3810 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3815 static enum slow_path_reason
3816 commit_set_nw_action(const struct flow *flow, struct flow *base,
3817 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3819 /* Check if 'flow' really has an L3 header. */
3820 if (!flow->nw_proto) {
3824 switch (ntohs(base->dl_type)) {
3826 commit_set_ipv4_action(flow, base, odp_actions, wc);
3830 commit_set_ipv6_action(flow, base, odp_actions, wc);
3834 return commit_set_arp_action(flow, base, odp_actions, wc);
3841 commit_set_port_action(const struct flow *flow, struct flow *base,
3842 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3844 /* Check if 'flow' really has an L3 header. */
3845 if (!flow->nw_proto) {
3849 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3853 if (base->tp_src == flow->tp_src &&
3854 base->tp_dst == flow->tp_dst) {
3858 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3859 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3861 if (flow->nw_proto == IPPROTO_TCP) {
3862 struct ovs_key_tcp port_key;
3864 port_key.tcp_src = base->tp_src = flow->tp_src;
3865 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3867 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3868 &port_key, sizeof(port_key));
3870 } else if (flow->nw_proto == IPPROTO_UDP) {
3871 struct ovs_key_udp port_key;
3873 port_key.udp_src = base->tp_src = flow->tp_src;
3874 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3876 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3877 &port_key, sizeof(port_key));
3878 } else if (flow->nw_proto == IPPROTO_SCTP) {
3879 struct ovs_key_sctp port_key;
3881 port_key.sctp_src = base->tp_src = flow->tp_src;
3882 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3884 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3885 &port_key, sizeof(port_key));
3890 commit_set_priority_action(const struct flow *flow, struct flow *base,
3891 struct ofpbuf *odp_actions,
3892 struct flow_wildcards *wc)
3894 if (base->skb_priority == flow->skb_priority) {
3898 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3899 base->skb_priority = flow->skb_priority;
3901 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3902 &base->skb_priority, sizeof(base->skb_priority));
3906 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3907 struct ofpbuf *odp_actions,
3908 struct flow_wildcards *wc)
3910 if (base->pkt_mark == flow->pkt_mark) {
3914 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3915 base->pkt_mark = flow->pkt_mark;
3917 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3920 /* If any of the flow key data that ODP actions can modify are different in
3921 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3922 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3923 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3924 * in addition to this function if needed. Sets fields in 'wc' that are
3925 * used as part of the action.
3927 * Returns a reason to force processing the flow's packets into the userspace
3928 * slow path, if there is one, otherwise 0. */
3929 enum slow_path_reason
3930 commit_odp_actions(const struct flow *flow, struct flow *base,
3931 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3933 enum slow_path_reason slow;
3935 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3936 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3937 commit_set_port_action(flow, base, odp_actions, wc);
3938 commit_mpls_action(flow, base, odp_actions, wc);
3939 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3940 commit_set_priority_action(flow, base, odp_actions, wc);
3941 commit_set_pkt_mark_action(flow, base, odp_actions, wc);