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_MAX:
843 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
846 const struct nlattr *a;
848 bool unknown = false;
850 NL_NESTED_FOR_EACH(a, left, attr) {
851 uint16_t type = nl_attr_type(a);
852 size_t len = nl_attr_get_size(a);
853 int expected_len = tunnel_key_attr_len(type);
855 if (len != expected_len && expected_len >= 0) {
856 return ODP_FIT_ERROR;
860 case OVS_TUNNEL_KEY_ATTR_ID:
861 tun->tun_id = nl_attr_get_be64(a);
862 tun->flags |= FLOW_TNL_F_KEY;
864 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
865 tun->ip_src = nl_attr_get_be32(a);
867 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
868 tun->ip_dst = nl_attr_get_be32(a);
870 case OVS_TUNNEL_KEY_ATTR_TOS:
871 tun->ip_tos = nl_attr_get_u8(a);
873 case OVS_TUNNEL_KEY_ATTR_TTL:
874 tun->ip_ttl = nl_attr_get_u8(a);
877 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
878 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
880 case OVS_TUNNEL_KEY_ATTR_CSUM:
881 tun->flags |= FLOW_TNL_F_CSUM;
883 case OVS_TUNNEL_KEY_ATTR_OAM:
884 tun->flags |= FLOW_TNL_F_OAM;
887 /* Allow this to show up as unexpected, if there are unknown
888 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
895 return ODP_FIT_ERROR;
898 return ODP_FIT_TOO_MUCH;
900 return ODP_FIT_PERFECT;
904 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
908 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
910 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
911 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
912 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
914 if (tun_key->ip_src) {
915 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
917 if (tun_key->ip_dst) {
918 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
920 if (tun_key->ip_tos) {
921 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
923 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
924 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
925 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
927 if (tun_key->flags & FLOW_TNL_F_CSUM) {
928 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
930 if (tun_key->flags & FLOW_TNL_F_OAM) {
931 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
934 nl_msg_end_nested(a, tun_key_ofs);
938 odp_mask_attr_is_wildcard(const struct nlattr *ma)
940 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
944 odp_mask_attr_is_exact(const struct nlattr *ma)
946 bool is_exact = false;
947 enum ovs_key_attr attr = nl_attr_type(ma);
949 if (attr == OVS_KEY_ATTR_TUNNEL) {
950 /* XXX this is a hack for now. Should change
951 * the exact match dection to per field
952 * instead of per attribute.
954 struct flow_tnl tun_mask;
955 memset(&tun_mask, 0, sizeof tun_mask);
956 odp_tun_key_from_attr(ma, &tun_mask);
957 if (tun_mask.flags == (FLOW_TNL_F_KEY
958 | FLOW_TNL_F_DONT_FRAGMENT
961 /* The flags are exact match, check the remaining fields. */
962 tun_mask.flags = 0xffff;
963 is_exact = is_all_ones((uint8_t *)&tun_mask,
964 offsetof(struct flow_tnl, ip_ttl));
967 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
974 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
977 struct odp_portno_names *odp_portno_names;
979 odp_portno_names = xmalloc(sizeof *odp_portno_names);
980 odp_portno_names->port_no = port_no;
981 odp_portno_names->name = xstrdup(port_name);
982 hmap_insert(portno_names, &odp_portno_names->hmap_node,
983 hash_odp_port(port_no));
987 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
989 struct odp_portno_names *odp_portno_names;
991 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
992 hash_odp_port(port_no), portno_names) {
993 if (odp_portno_names->port_no == port_no) {
994 return odp_portno_names->name;
1001 odp_portno_names_destroy(struct hmap *portno_names)
1003 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1004 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1005 hmap_node, portno_names) {
1006 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1007 free(odp_portno_names->name);
1008 free(odp_portno_names);
1013 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1014 const struct hmap *portno_names, struct ds *ds,
1017 struct flow_tnl tun_key;
1018 enum ovs_key_attr attr = nl_attr_type(a);
1019 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1023 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1025 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1028 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1029 if (expected_len != -2) {
1030 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1031 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1033 if (bad_key_len || bad_mask_len) {
1035 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1036 nl_attr_get_size(a), expected_len);
1038 format_generic_odp_key(a, ds);
1040 ds_put_char(ds, '/');
1042 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1043 nl_attr_get_size(ma), expected_len);
1045 format_generic_odp_key(ma, ds);
1047 ds_put_char(ds, ')');
1053 ds_put_char(ds, '(');
1055 case OVS_KEY_ATTR_ENCAP:
1056 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1057 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1058 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1060 } else if (nl_attr_get_size(a)) {
1061 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1066 case OVS_KEY_ATTR_PRIORITY:
1067 case OVS_KEY_ATTR_SKB_MARK:
1068 case OVS_KEY_ATTR_DP_HASH:
1069 case OVS_KEY_ATTR_RECIRC_ID:
1070 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1072 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1076 case OVS_KEY_ATTR_TUNNEL:
1077 memset(&tun_key, 0, sizeof tun_key);
1078 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1079 ds_put_format(ds, "error");
1080 } else if (!is_exact) {
1081 struct flow_tnl tun_mask;
1083 memset(&tun_mask, 0, sizeof tun_mask);
1084 odp_tun_key_from_attr(ma, &tun_mask);
1085 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1086 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1087 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1089 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1090 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1091 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1092 tun_key.ip_tos, tun_mask.ip_tos,
1093 tun_key.ip_ttl, tun_mask.ip_ttl);
1095 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1097 /* XXX This code is correct, but enabling it would break the unit
1098 test. Disable it for now until the input parser is fixed.
1100 ds_put_char(ds, '/');
1101 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1103 ds_put_char(ds, ')');
1105 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1106 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1107 ntohll(tun_key.tun_id),
1108 IP_ARGS(tun_key.ip_src),
1109 IP_ARGS(tun_key.ip_dst),
1110 tun_key.ip_tos, tun_key.ip_ttl);
1112 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1113 ds_put_char(ds, ')');
1117 case OVS_KEY_ATTR_IN_PORT:
1118 if (portno_names && verbose && is_exact) {
1119 char *name = odp_portno_names_get(portno_names,
1120 u32_to_odp(nl_attr_get_u32(a)));
1122 ds_put_format(ds, "%s", name);
1124 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1127 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1129 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1134 case OVS_KEY_ATTR_ETHERNET:
1136 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1137 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1139 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1140 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1141 ETH_ADDR_ARGS(eth_key->eth_src),
1142 ETH_ADDR_ARGS(eth_mask->eth_src),
1143 ETH_ADDR_ARGS(eth_key->eth_dst),
1144 ETH_ADDR_ARGS(eth_mask->eth_dst));
1146 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1148 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1149 ETH_ADDR_ARGS(eth_key->eth_src),
1150 ETH_ADDR_ARGS(eth_key->eth_dst));
1154 case OVS_KEY_ATTR_VLAN:
1156 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1158 ovs_be16 mask = nl_attr_get_be16(ma);
1159 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1160 vlan_tci_to_vid(vlan_tci),
1161 vlan_tci_to_vid(mask),
1162 vlan_tci_to_pcp(vlan_tci),
1163 vlan_tci_to_pcp(mask),
1164 vlan_tci_to_cfi(vlan_tci),
1165 vlan_tci_to_cfi(mask));
1167 format_vlan_tci(ds, vlan_tci);
1172 case OVS_KEY_ATTR_MPLS: {
1173 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1174 const struct ovs_key_mpls *mpls_mask = NULL;
1175 size_t size = nl_attr_get_size(a);
1177 if (!size || size % sizeof *mpls_key) {
1178 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1179 nl_attr_get_size(a));
1183 mpls_mask = nl_attr_get(ma);
1184 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1185 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1186 "mask length %"PRIuSIZE")",
1187 nl_attr_get_size(a), nl_attr_get_size(ma));
1191 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1195 case OVS_KEY_ATTR_ETHERTYPE:
1196 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1198 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1202 case OVS_KEY_ATTR_IPV4:
1204 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1205 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1207 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1208 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1209 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1210 IP_ARGS(ipv4_key->ipv4_src),
1211 IP_ARGS(ipv4_mask->ipv4_src),
1212 IP_ARGS(ipv4_key->ipv4_dst),
1213 IP_ARGS(ipv4_mask->ipv4_dst),
1214 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1215 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1216 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1217 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1218 ipv4_mask->ipv4_frag);
1220 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1222 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1223 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1224 IP_ARGS(ipv4_key->ipv4_src),
1225 IP_ARGS(ipv4_key->ipv4_dst),
1226 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1228 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1232 case OVS_KEY_ATTR_IPV6:
1234 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1235 char src_str[INET6_ADDRSTRLEN];
1236 char dst_str[INET6_ADDRSTRLEN];
1237 char src_mask[INET6_ADDRSTRLEN];
1238 char dst_mask[INET6_ADDRSTRLEN];
1240 ipv6_key = nl_attr_get(a);
1241 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1242 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1244 ipv6_mask = nl_attr_get(ma);
1245 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1246 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1248 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1249 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1250 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1251 src_str, src_mask, dst_str, dst_mask,
1252 ntohl(ipv6_key->ipv6_label),
1253 ntohl(ipv6_mask->ipv6_label),
1254 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1255 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1256 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1257 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1258 ipv6_mask->ipv6_frag);
1260 const struct ovs_key_ipv6 *ipv6_key;
1261 char src_str[INET6_ADDRSTRLEN];
1262 char dst_str[INET6_ADDRSTRLEN];
1264 ipv6_key = nl_attr_get(a);
1265 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1266 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1268 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1269 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1270 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1271 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1272 ipv6_key->ipv6_hlimit,
1273 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1277 case OVS_KEY_ATTR_TCP:
1279 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1280 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1282 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1283 ",dst=%"PRIu16"/%#"PRIx16,
1284 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1285 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1287 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1289 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1290 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1294 case OVS_KEY_ATTR_TCP_FLAGS:
1295 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1297 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1301 case OVS_KEY_ATTR_UDP:
1303 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1304 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1306 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1307 ",dst=%"PRIu16"/%#"PRIx16,
1308 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1309 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1311 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1313 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1314 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1318 case OVS_KEY_ATTR_SCTP:
1320 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1321 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1323 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1324 ",dst=%"PRIu16"/%#"PRIx16,
1325 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1326 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1328 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1330 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1331 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1335 case OVS_KEY_ATTR_ICMP:
1337 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1338 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1340 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1341 icmp_key->icmp_type, icmp_mask->icmp_type,
1342 icmp_key->icmp_code, icmp_mask->icmp_code);
1344 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1346 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1347 icmp_key->icmp_type, icmp_key->icmp_code);
1351 case OVS_KEY_ATTR_ICMPV6:
1353 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1354 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1356 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1357 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1358 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1360 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1362 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1363 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1367 case OVS_KEY_ATTR_ARP:
1369 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1370 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1372 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1373 ",op=%"PRIu16"/%#"PRIx16
1374 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1375 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1376 IP_ARGS(arp_key->arp_sip),
1377 IP_ARGS(arp_mask->arp_sip),
1378 IP_ARGS(arp_key->arp_tip),
1379 IP_ARGS(arp_mask->arp_tip),
1380 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1381 ETH_ADDR_ARGS(arp_key->arp_sha),
1382 ETH_ADDR_ARGS(arp_mask->arp_sha),
1383 ETH_ADDR_ARGS(arp_key->arp_tha),
1384 ETH_ADDR_ARGS(arp_mask->arp_tha));
1386 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1388 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1389 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1390 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1391 ntohs(arp_key->arp_op),
1392 ETH_ADDR_ARGS(arp_key->arp_sha),
1393 ETH_ADDR_ARGS(arp_key->arp_tha));
1397 case OVS_KEY_ATTR_ND: {
1398 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1399 char target[INET6_ADDRSTRLEN];
1401 nd_key = nl_attr_get(a);
1403 nd_mask = nl_attr_get(ma);
1406 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1407 ds_put_format(ds, "target=%s", target);
1409 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1410 ds_put_format(ds, "/%s", target);
1413 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1414 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1415 ETH_ADDR_ARGS(nd_key->nd_sll));
1417 ds_put_format(ds, "/"ETH_ADDR_FMT,
1418 ETH_ADDR_ARGS(nd_mask->nd_sll));
1421 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1422 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1423 ETH_ADDR_ARGS(nd_key->nd_tll));
1425 ds_put_format(ds, "/"ETH_ADDR_FMT,
1426 ETH_ADDR_ARGS(nd_mask->nd_tll));
1431 case OVS_KEY_ATTR_UNSPEC:
1432 case __OVS_KEY_ATTR_MAX:
1434 format_generic_odp_key(a, ds);
1436 ds_put_char(ds, '/');
1437 format_generic_odp_key(ma, ds);
1441 ds_put_char(ds, ')');
1444 static struct nlattr *
1445 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1447 const struct nlattr *a;
1449 int type = nl_attr_type(key);
1450 int size = nl_attr_get_size(key);
1452 if (odp_flow_key_attr_len(type) >=0) {
1453 nl_msg_put_unspec_zero(ofp, type, size);
1457 nested_mask = nl_msg_start_nested(ofp, type);
1458 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1459 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1461 nl_msg_end_nested(ofp, nested_mask);
1464 return ofpbuf_base(ofp);
1467 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1468 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1469 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1470 * non-null and 'verbose' is true, translates odp port number to its name. */
1472 odp_flow_format(const struct nlattr *key, size_t key_len,
1473 const struct nlattr *mask, size_t mask_len,
1474 const struct hmap *portno_names, struct ds *ds, bool verbose)
1477 const struct nlattr *a;
1479 bool has_ethtype_key = false;
1480 const struct nlattr *ma = NULL;
1482 bool first_field = true;
1484 ofpbuf_init(&ofp, 100);
1485 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1486 bool is_nested_attr;
1487 bool is_wildcard = false;
1488 int attr_type = nl_attr_type(a);
1490 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1491 has_ethtype_key = true;
1494 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1496 if (mask && mask_len) {
1497 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1498 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1501 if (verbose || !is_wildcard || is_nested_attr) {
1502 if (is_wildcard && !ma) {
1503 ma = generate_all_wildcard_mask(&ofp, a);
1506 ds_put_char(ds, ',');
1508 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1509 first_field = false;
1513 ofpbuf_uninit(&ofp);
1518 if (left == key_len) {
1519 ds_put_cstr(ds, "<empty>");
1521 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1522 for (i = 0; i < left; i++) {
1523 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1525 ds_put_char(ds, ')');
1527 if (!has_ethtype_key) {
1528 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1530 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1531 ntohs(nl_attr_get_be16(ma)));
1535 ds_put_cstr(ds, "<empty>");
1539 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1540 * OVS_KEY_ATTR_* attributes in 'key'. */
1542 odp_flow_key_format(const struct nlattr *key,
1543 size_t key_len, struct ds *ds)
1545 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1549 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1550 const uint8_t *nd_tll, struct ofpbuf *key)
1553 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1557 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1560 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1564 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1565 const uint8_t *nd_tll, struct ofpbuf *key)
1567 struct ovs_key_nd nd_key;
1569 memset(&nd_key, 0, sizeof nd_key);
1571 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1575 put_nd(&nd_key, nd_sll, nd_tll, key);
1580 put_nd_mask(int n, const char *nd_target_s,
1581 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1583 struct ovs_key_nd nd_mask;
1585 memset(&nd_mask, 0xff, sizeof nd_mask);
1587 if (strlen(nd_target_s) != 0 &&
1588 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1592 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1597 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1599 if (!strcasecmp(s, "no")) {
1600 *type = OVS_FRAG_TYPE_NONE;
1601 } else if (!strcasecmp(s, "first")) {
1602 *type = OVS_FRAG_TYPE_FIRST;
1603 } else if (!strcasecmp(s, "later")) {
1604 *type = OVS_FRAG_TYPE_LATER;
1612 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1614 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1615 (mpls_tc << MPLS_TC_SHIFT) |
1616 (mpls_ttl << MPLS_TTL_SHIFT) |
1617 (mpls_bos << MPLS_BOS_SHIFT)));
1621 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1622 struct ofpbuf *key, struct ofpbuf *mask)
1626 uint32_t priority_mask;
1629 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1630 &priority, &priority_mask, &n)) {
1631 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1632 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1634 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1635 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1637 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1648 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1650 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1651 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1653 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1654 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1656 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1666 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1667 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1668 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1675 uint32_t dp_hash_mask;
1678 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1679 &dp_hash_mask, &n)) {
1680 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1681 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1683 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1684 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1686 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1693 uint64_t tun_id, tun_id_mask;
1694 struct flow_tnl tun_key, tun_key_mask;
1697 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1698 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1699 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1700 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1701 &tun_id, &tun_id_mask,
1702 IP_SCAN_ARGS(&tun_key.ip_src),
1703 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1704 IP_SCAN_ARGS(&tun_key.ip_dst),
1705 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1706 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1707 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1711 tun_key.tun_id = htonll(tun_id);
1712 tun_key_mask.tun_id = htonll(tun_id_mask);
1713 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1714 tun_key.flags = flags;
1715 tun_key_mask.flags = UINT16_MAX;
1725 tun_key_to_attr(key, &tun_key);
1727 tun_key_to_attr(mask, &tun_key_mask);
1730 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1731 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1732 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1733 IP_SCAN_ARGS(&tun_key.ip_src),
1734 IP_SCAN_ARGS(&tun_key.ip_dst),
1735 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1739 tun_key.tun_id = htonll(tun_id);
1740 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1741 tun_key.flags = flags;
1751 tun_key_to_attr(key, &tun_key);
1754 memset(&tun_key, 0xff, sizeof tun_key);
1755 tun_key_to_attr(mask, &tun_key);
1763 uint32_t in_port_mask;
1766 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1767 &in_port, &in_port_mask, &n)) {
1768 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1769 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1771 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1772 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1774 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1781 if (port_names && !strncmp(s, "in_port(", 8)) {
1783 const struct simap_node *node;
1787 name_len = strcspn(name, ")");
1788 node = simap_find_len(port_names, name, name_len);
1790 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1793 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1795 return 8 + name_len + 1;
1800 struct ovs_key_ethernet eth_key;
1801 struct ovs_key_ethernet eth_key_mask;
1804 if (mask && ovs_scan(s,
1805 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1806 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1807 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1808 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1809 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1810 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1811 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1812 ð_key, sizeof eth_key);
1813 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1814 ð_key_mask, sizeof eth_key_mask);
1816 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1817 "dst="ETH_ADDR_SCAN_FMT")%n",
1818 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1819 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1820 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1821 ð_key, sizeof eth_key);
1824 memset(ð_key, 0xff, sizeof eth_key);
1825 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1826 ð_key, sizeof eth_key);
1838 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1839 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1840 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1841 htons((vid << VLAN_VID_SHIFT) |
1842 (pcp << VLAN_PCP_SHIFT) |
1844 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1845 htons((vid_mask << VLAN_VID_SHIFT) |
1846 (pcp_mask << VLAN_PCP_SHIFT) |
1847 (1 << VLAN_CFI_SHIFT)));
1849 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1850 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1851 htons((vid << VLAN_VID_SHIFT) |
1852 (pcp << VLAN_PCP_SHIFT) |
1855 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1859 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1860 &vid, &vid_mask, &pcp, &pcp_mask,
1861 &cfi, &cfi_mask, &n)) {
1862 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1863 htons((vid << VLAN_VID_SHIFT) |
1864 (pcp << VLAN_PCP_SHIFT) |
1865 (cfi ? VLAN_CFI : 0)));
1866 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1867 htons((vid_mask << VLAN_VID_SHIFT) |
1868 (pcp_mask << VLAN_PCP_SHIFT) |
1869 (cfi_mask << VLAN_CFI_SHIFT)));
1871 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1872 &vid, &pcp, &cfi, &n)) {
1873 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1874 htons((vid << VLAN_VID_SHIFT) |
1875 (pcp << VLAN_PCP_SHIFT) |
1876 (cfi ? VLAN_CFI : 0)));
1878 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1889 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1890 ð_type, ð_type_mask, &n)) {
1891 if (eth_type != 0) {
1892 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1894 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1896 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1897 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1899 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
1906 int label, tc, ttl, bos;
1907 int label_mask, tc_mask, ttl_mask, bos_mask;
1910 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
1911 "ttl=%i/%i,bos=%i/%i)%n",
1912 &label, &label_mask, &tc, &tc_mask,
1913 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
1914 struct ovs_key_mpls *mpls, *mpls_mask;
1916 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1918 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1920 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1922 mpls_mask->mpls_lse = mpls_lse_from_components(
1923 label_mask, tc_mask, ttl_mask, bos_mask);
1925 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
1926 &label, &tc, &ttl, &bos, &n)) {
1927 struct ovs_key_mpls *mpls;
1929 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1931 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1933 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1935 mpls->mpls_lse = OVS_BE32_MAX;
1943 struct ovs_key_ipv4 ipv4_key;
1944 struct ovs_key_ipv4 ipv4_mask;
1947 enum ovs_frag_type ipv4_frag;
1951 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1952 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1953 "proto=%"SCNi8"/%"SCNi8","
1954 "tos=%"SCNi8"/%"SCNi8","
1955 "ttl=%"SCNi8"/%"SCNi8","
1956 "frag=%7[a-z]/%"SCNi8")%n",
1957 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1958 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
1959 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1960 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
1961 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
1962 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
1963 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
1964 frag, &ipv4_mask.ipv4_frag, &n)
1965 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1966 ipv4_key.ipv4_frag = ipv4_frag;
1967 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1968 &ipv4_key, sizeof ipv4_key);
1970 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1971 &ipv4_mask, sizeof ipv4_mask);
1973 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1974 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
1976 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1977 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1978 &ipv4_key.ipv4_proto,
1982 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1983 ipv4_key.ipv4_frag = ipv4_frag;
1984 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1985 &ipv4_key, sizeof ipv4_key);
1988 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1989 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1990 &ipv4_key, sizeof ipv4_key);
1997 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1998 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1999 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
2000 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
2001 int ipv6_label, ipv6_label_mask;
2002 int ipv6_proto, ipv6_proto_mask;
2003 int ipv6_tclass, ipv6_tclass_mask;
2004 int ipv6_hlimit, ipv6_hlimit_mask;
2006 enum ovs_frag_type ipv6_frag;
2010 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2011 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2012 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2013 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2014 ipv6_src_s, ipv6_src_mask_s,
2015 ipv6_dst_s, ipv6_dst_mask_s,
2016 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2017 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2018 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2019 &ipv6_frag_mask, &n)
2020 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2021 struct ovs_key_ipv6 ipv6_key;
2022 struct ovs_key_ipv6 ipv6_mask;
2024 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2025 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2026 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2027 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2031 ipv6_key.ipv6_label = htonl(ipv6_label);
2032 ipv6_key.ipv6_proto = ipv6_proto;
2033 ipv6_key.ipv6_tclass = ipv6_tclass;
2034 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2035 ipv6_key.ipv6_frag = ipv6_frag;
2036 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2037 &ipv6_key, sizeof ipv6_key);
2039 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2040 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2041 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2042 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2043 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2044 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2045 &ipv6_mask, sizeof ipv6_mask);
2047 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2048 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2050 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2051 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2052 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2053 struct ovs_key_ipv6 ipv6_key;
2055 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2056 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2059 ipv6_key.ipv6_label = htonl(ipv6_label);
2060 ipv6_key.ipv6_proto = ipv6_proto;
2061 ipv6_key.ipv6_tclass = ipv6_tclass;
2062 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2063 ipv6_key.ipv6_frag = ipv6_frag;
2064 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2065 &ipv6_key, sizeof ipv6_key);
2068 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2069 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2070 &ipv6_key, sizeof ipv6_key);
2083 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2084 &tcp_src, &tcp_src_mask, &tcp_dst,
2085 &tcp_dst_mask, &n)) {
2086 struct ovs_key_tcp tcp_key;
2087 struct ovs_key_tcp tcp_mask;
2089 tcp_key.tcp_src = htons(tcp_src);
2090 tcp_key.tcp_dst = htons(tcp_dst);
2091 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2093 tcp_mask.tcp_src = htons(tcp_src_mask);
2094 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2095 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2096 &tcp_mask, sizeof tcp_mask);
2098 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2099 &tcp_src, &tcp_dst, &n)) {
2100 struct ovs_key_tcp tcp_key;
2102 tcp_key.tcp_src = htons(tcp_src);
2103 tcp_key.tcp_dst = htons(tcp_dst);
2104 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2107 memset(&tcp_key, 0xff, sizeof tcp_key);
2108 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2109 &tcp_key, sizeof tcp_key);
2116 uint16_t tcp_flags, tcp_flags_mask;
2119 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2120 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2121 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2122 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2124 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2125 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2127 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2141 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2142 &udp_src, &udp_src_mask,
2143 &udp_dst, &udp_dst_mask, &n)) {
2144 struct ovs_key_udp udp_key;
2145 struct ovs_key_udp udp_mask;
2147 udp_key.udp_src = htons(udp_src);
2148 udp_key.udp_dst = htons(udp_dst);
2149 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2151 udp_mask.udp_src = htons(udp_src_mask);
2152 udp_mask.udp_dst = htons(udp_dst_mask);
2153 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2154 &udp_mask, sizeof udp_mask);
2157 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2158 struct ovs_key_udp udp_key;
2160 udp_key.udp_src = htons(udp_src);
2161 udp_key.udp_dst = htons(udp_dst);
2162 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2165 memset(&udp_key, 0xff, sizeof udp_key);
2166 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2179 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2180 &sctp_src, &sctp_src_mask,
2181 &sctp_dst, &sctp_dst_mask, &n)) {
2182 struct ovs_key_sctp sctp_key;
2183 struct ovs_key_sctp sctp_mask;
2185 sctp_key.sctp_src = htons(sctp_src);
2186 sctp_key.sctp_dst = htons(sctp_dst);
2187 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2189 sctp_mask.sctp_src = htons(sctp_src_mask);
2190 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2191 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2192 &sctp_mask, sizeof sctp_mask);
2195 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2196 struct ovs_key_sctp sctp_key;
2198 sctp_key.sctp_src = htons(sctp_src);
2199 sctp_key.sctp_dst = htons(sctp_dst);
2200 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2203 memset(&sctp_key, 0xff, sizeof sctp_key);
2204 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2211 struct ovs_key_icmp icmp_key;
2212 struct ovs_key_icmp icmp_mask;
2215 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2216 "code=%"SCNi8"/%"SCNi8")%n",
2217 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2218 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2219 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2220 &icmp_key, sizeof icmp_key);
2221 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2222 &icmp_mask, sizeof icmp_mask);
2224 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2225 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2226 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2227 &icmp_key, sizeof icmp_key);
2229 memset(&icmp_key, 0xff, sizeof icmp_key);
2230 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2238 struct ovs_key_icmpv6 icmpv6_key;
2239 struct ovs_key_icmpv6 icmpv6_mask;
2242 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2243 "code=%"SCNi8"/%"SCNi8")%n",
2244 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2245 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2247 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2248 &icmpv6_key, sizeof icmpv6_key);
2249 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2250 sizeof icmpv6_mask);
2252 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2253 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2255 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2256 &icmpv6_key, sizeof icmpv6_key);
2259 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2260 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2268 struct ovs_key_arp arp_key;
2269 struct ovs_key_arp arp_mask;
2270 uint16_t arp_op, arp_op_mask;
2273 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2274 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2275 "op=%"SCNi16"/%"SCNi16","
2276 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2277 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2278 IP_SCAN_ARGS(&arp_key.arp_sip),
2279 IP_SCAN_ARGS(&arp_mask.arp_sip),
2280 IP_SCAN_ARGS(&arp_key.arp_tip),
2281 IP_SCAN_ARGS(&arp_mask.arp_tip),
2282 &arp_op, &arp_op_mask,
2283 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2284 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2285 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2286 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2287 arp_key.arp_op = htons(arp_op);
2288 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2289 arp_mask.arp_op = htons(arp_op_mask);
2290 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2291 &arp_mask, sizeof arp_mask);
2293 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2294 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2295 "tha="ETH_ADDR_SCAN_FMT")%n",
2296 IP_SCAN_ARGS(&arp_key.arp_sip),
2297 IP_SCAN_ARGS(&arp_key.arp_tip),
2299 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2300 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2301 arp_key.arp_op = htons(arp_op);
2302 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2305 memset(&arp_key, 0xff, sizeof arp_key);
2306 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2307 &arp_key, sizeof arp_key);
2314 char nd_target_s[IPV6_SCAN_LEN + 1];
2315 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2316 uint8_t nd_sll[ETH_ADDR_LEN];
2317 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2318 uint8_t nd_tll[ETH_ADDR_LEN];
2319 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2322 nd_target_mask_s[0] = 0;
2323 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2324 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2326 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2327 nd_target_s, nd_target_mask_s, &n)) {
2328 put_nd_key(n, nd_target_s, NULL, NULL, key);
2329 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2330 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2332 put_nd_key(n, nd_target_s, NULL, NULL, key);
2334 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2337 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2338 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2339 nd_target_s, nd_target_mask_s,
2340 ETH_ADDR_SCAN_ARGS(nd_sll),
2341 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2342 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2343 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2344 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2345 "sll="ETH_ADDR_SCAN_FMT")%n",
2346 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2347 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2349 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2352 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2353 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2354 nd_target_s, nd_target_mask_s,
2355 ETH_ADDR_SCAN_ARGS(nd_tll),
2356 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2357 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2358 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2359 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2360 "tll="ETH_ADDR_SCAN_FMT")%n",
2361 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2362 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2364 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2367 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2368 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2369 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2370 nd_target_s, nd_target_mask_s,
2371 ETH_ADDR_SCAN_ARGS(nd_sll),
2372 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2373 ETH_ADDR_SCAN_ARGS(nd_tll),
2374 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2376 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2377 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2378 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2379 "sll="ETH_ADDR_SCAN_FMT","
2380 "tll="ETH_ADDR_SCAN_FMT")%n",
2381 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2382 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2383 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2385 put_nd_mask(n, nd_target_mask_s,
2386 nd_sll_mask, nd_tll_mask, mask);
2395 if (!strncmp(s, "encap(", 6)) {
2396 const char *start = s;
2397 size_t encap, encap_mask = 0;
2399 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2401 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2408 s += strspn(s, ", \t\r\n");
2411 } else if (*s == ')') {
2415 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2423 nl_msg_end_nested(key, encap);
2425 nl_msg_end_nested(mask, encap_mask);
2434 /* Parses the string representation of a datapath flow key, in the
2435 * format output by odp_flow_key_format(). Returns 0 if successful,
2436 * otherwise a positive errno value. On success, the flow key is
2437 * appended to 'key' as a series of Netlink attributes. On failure, no
2438 * data is appended to 'key'. Either way, 'key''s data might be
2441 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2442 * to a port number. (Port names may be used instead of port numbers in
2445 * On success, the attributes appended to 'key' are individually syntactically
2446 * valid, but they may not be valid as a sequence. 'key' might, for example,
2447 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2449 odp_flow_from_string(const char *s, const struct simap *port_names,
2450 struct ofpbuf *key, struct ofpbuf *mask)
2452 const size_t old_size = ofpbuf_size(key);
2456 s += strspn(s, delimiters);
2461 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2463 ofpbuf_set_size(key, old_size);
2473 ovs_to_odp_frag(uint8_t nw_frag)
2475 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2476 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2477 : OVS_FRAG_TYPE_LATER);
2481 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2483 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2485 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2486 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2492 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2493 const struct flow *mask, odp_port_t odp_in_port,
2494 size_t max_mpls_depth, bool recirc, bool export_mask)
2496 struct ovs_key_ethernet *eth_key;
2498 const struct flow *data = export_mask ? mask : flow;
2500 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2502 if (flow->tunnel.ip_dst || export_mask) {
2503 tun_key_to_attr(buf, &data->tunnel);
2506 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2509 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2510 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2513 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2514 * is not the magical value "ODPP_NONE". */
2515 if (export_mask || odp_in_port != ODPP_NONE) {
2516 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2519 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2521 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2522 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2524 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2526 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2528 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2530 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2531 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2532 if (flow->vlan_tci == htons(0)) {
2539 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2540 /* For backwards compatibility with kernels that don't support
2541 * wildcarding, the following convention is used to encode the
2542 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2545 * -------- -------- -------
2546 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2547 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2548 * <none> 0xffff Any non-Ethernet II frame (except valid
2549 * 802.3 SNAP packet with valid eth_type).
2552 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2557 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2559 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2560 struct ovs_key_ipv4 *ipv4_key;
2562 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2564 ipv4_key->ipv4_src = data->nw_src;
2565 ipv4_key->ipv4_dst = data->nw_dst;
2566 ipv4_key->ipv4_proto = data->nw_proto;
2567 ipv4_key->ipv4_tos = data->nw_tos;
2568 ipv4_key->ipv4_ttl = data->nw_ttl;
2569 ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2570 : ovs_to_odp_frag(data->nw_frag);
2571 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2572 struct ovs_key_ipv6 *ipv6_key;
2574 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2576 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2577 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2578 ipv6_key->ipv6_label = data->ipv6_label;
2579 ipv6_key->ipv6_proto = data->nw_proto;
2580 ipv6_key->ipv6_tclass = data->nw_tos;
2581 ipv6_key->ipv6_hlimit = data->nw_ttl;
2582 ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2583 : ovs_to_odp_frag(data->nw_frag);
2584 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2585 flow->dl_type == htons(ETH_TYPE_RARP)) {
2586 struct ovs_key_arp *arp_key;
2588 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2590 arp_key->arp_sip = data->nw_src;
2591 arp_key->arp_tip = data->nw_dst;
2592 arp_key->arp_op = htons(data->nw_proto);
2593 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2594 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2595 } else if (eth_type_mpls(flow->dl_type)) {
2596 struct ovs_key_mpls *mpls_key;
2599 n = flow_count_mpls_labels(flow, NULL);
2600 n = MIN(n, max_mpls_depth);
2601 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2602 n * sizeof *mpls_key);
2603 for (i = 0; i < n; i++) {
2604 mpls_key[i].mpls_lse = data->mpls_lse[i];
2608 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2609 if (flow->nw_proto == IPPROTO_TCP) {
2610 struct ovs_key_tcp *tcp_key;
2612 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2614 tcp_key->tcp_src = data->tp_src;
2615 tcp_key->tcp_dst = data->tp_dst;
2617 if (data->tcp_flags) {
2618 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2620 } else if (flow->nw_proto == IPPROTO_UDP) {
2621 struct ovs_key_udp *udp_key;
2623 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2625 udp_key->udp_src = data->tp_src;
2626 udp_key->udp_dst = data->tp_dst;
2627 } else if (flow->nw_proto == IPPROTO_SCTP) {
2628 struct ovs_key_sctp *sctp_key;
2630 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2632 sctp_key->sctp_src = data->tp_src;
2633 sctp_key->sctp_dst = data->tp_dst;
2634 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2635 && flow->nw_proto == IPPROTO_ICMP) {
2636 struct ovs_key_icmp *icmp_key;
2638 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2640 icmp_key->icmp_type = ntohs(data->tp_src);
2641 icmp_key->icmp_code = ntohs(data->tp_dst);
2642 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2643 && flow->nw_proto == IPPROTO_ICMPV6) {
2644 struct ovs_key_icmpv6 *icmpv6_key;
2646 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2647 sizeof *icmpv6_key);
2648 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2649 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2651 if (flow->tp_dst == htons(0)
2652 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
2653 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
2654 && (!export_mask || (data->tp_src == htons(0xffff)
2655 && data->tp_dst == htons(0xffff)))) {
2657 struct ovs_key_nd *nd_key;
2659 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2661 memcpy(nd_key->nd_target, &data->nd_target,
2662 sizeof nd_key->nd_target);
2663 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2664 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2671 nl_msg_end_nested(buf, encap);
2675 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2676 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2677 * number rather than a datapath port number). Instead, if 'odp_in_port'
2678 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2681 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2682 * capable of being expanded to allow for that much space.
2684 * 'recirc' indicates support for recirculation fields. If this is true, then
2685 * these fields will always be serialised. */
2687 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2688 const struct flow *mask, odp_port_t odp_in_port,
2691 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
2695 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2696 * 'buf'. 'flow' is used as a template to determine how to interpret
2697 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2698 * it doesn't indicate whether the other fields should be interpreted as
2699 * ARP, IPv4, IPv6, etc.
2701 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2702 * capable of being expanded to allow for that much space.
2704 * 'recirc' indicates support for recirculation fields. If this is true, then
2705 * these fields will always be serialised. */
2707 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2708 const struct flow *flow, uint32_t odp_in_port_mask,
2709 size_t max_mpls_depth, bool recirc)
2711 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
2712 max_mpls_depth, recirc, true);
2715 /* Generate ODP flow key from the given packet metadata */
2717 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2719 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2721 if (md->tunnel.ip_dst) {
2722 tun_key_to_attr(buf, &md->tunnel);
2725 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2727 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2728 * value "ODPP_NONE". */
2729 if (md->in_port.odp_port != ODPP_NONE) {
2730 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2734 /* Generate packet metadata from the given ODP flow key. */
2736 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2737 struct pkt_metadata *md)
2739 const struct nlattr *nla;
2741 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2742 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2743 1u << OVS_KEY_ATTR_IN_PORT;
2745 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2747 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2748 uint16_t type = nl_attr_type(nla);
2749 size_t len = nl_attr_get_size(nla);
2750 int expected_len = odp_flow_key_attr_len(type);
2752 if (len != expected_len && expected_len >= 0) {
2757 case OVS_KEY_ATTR_RECIRC_ID:
2758 md->recirc_id = nl_attr_get_u32(nla);
2759 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
2761 case OVS_KEY_ATTR_DP_HASH:
2762 md->dp_hash = nl_attr_get_u32(nla);
2763 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
2765 case OVS_KEY_ATTR_PRIORITY:
2766 md->skb_priority = nl_attr_get_u32(nla);
2767 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2769 case OVS_KEY_ATTR_SKB_MARK:
2770 md->pkt_mark = nl_attr_get_u32(nla);
2771 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2773 case OVS_KEY_ATTR_TUNNEL: {
2774 enum odp_key_fitness res;
2776 res = odp_tun_key_from_attr(nla, &md->tunnel);
2777 if (res == ODP_FIT_ERROR) {
2778 memset(&md->tunnel, 0, sizeof md->tunnel);
2779 } else if (res == ODP_FIT_PERFECT) {
2780 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2784 case OVS_KEY_ATTR_IN_PORT:
2785 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2786 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2792 if (!wanted_attrs) {
2793 return; /* Have everything. */
2799 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2801 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2802 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2803 key_len / sizeof(uint32_t), 0);
2807 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2808 uint64_t attrs, int out_of_range_attr,
2809 const struct nlattr *key, size_t key_len)
2814 if (VLOG_DROP_DBG(rl)) {
2819 for (i = 0; i < 64; i++) {
2820 if (attrs & (UINT64_C(1) << i)) {
2821 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2823 ds_put_format(&s, " %s",
2824 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2827 if (out_of_range_attr) {
2828 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2831 ds_put_cstr(&s, ": ");
2832 odp_flow_key_format(key, key_len, &s);
2834 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2839 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2841 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2843 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2844 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2848 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2849 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2850 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2851 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2858 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2859 const struct nlattr *attrs[], uint64_t *present_attrsp,
2860 int *out_of_range_attrp)
2862 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2863 const struct nlattr *nla;
2864 uint64_t present_attrs;
2867 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2869 *out_of_range_attrp = 0;
2870 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2871 uint16_t type = nl_attr_type(nla);
2872 size_t len = nl_attr_get_size(nla);
2873 int expected_len = odp_flow_key_attr_len(type);
2875 if (len != expected_len && expected_len >= 0) {
2876 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2878 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2879 "length %d", ovs_key_attr_to_string(type, namebuf,
2885 if (type > OVS_KEY_ATTR_MAX) {
2886 *out_of_range_attrp = type;
2888 if (present_attrs & (UINT64_C(1) << type)) {
2889 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2891 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2892 ovs_key_attr_to_string(type,
2893 namebuf, sizeof namebuf));
2897 present_attrs |= UINT64_C(1) << type;
2902 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2906 *present_attrsp = present_attrs;
2910 static enum odp_key_fitness
2911 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2912 uint64_t expected_attrs,
2913 const struct nlattr *key, size_t key_len)
2915 uint64_t missing_attrs;
2916 uint64_t extra_attrs;
2918 missing_attrs = expected_attrs & ~present_attrs;
2919 if (missing_attrs) {
2920 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2921 log_odp_key_attributes(&rl, "expected but not present",
2922 missing_attrs, 0, key, key_len);
2923 return ODP_FIT_TOO_LITTLE;
2926 extra_attrs = present_attrs & ~expected_attrs;
2927 if (extra_attrs || out_of_range_attr) {
2928 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2929 log_odp_key_attributes(&rl, "present but not expected",
2930 extra_attrs, out_of_range_attr, key, key_len);
2931 return ODP_FIT_TOO_MUCH;
2934 return ODP_FIT_PERFECT;
2938 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2939 uint64_t present_attrs, uint64_t *expected_attrs,
2940 struct flow *flow, const struct flow *src_flow)
2942 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2943 bool is_mask = flow != src_flow;
2945 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2946 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2947 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2948 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2949 ntohs(flow->dl_type));
2952 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2953 flow->dl_type != htons(0xffff)) {
2956 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2959 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2960 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
2961 /* See comments in odp_flow_key_from_flow__(). */
2962 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
2969 static enum odp_key_fitness
2970 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2971 uint64_t present_attrs, int out_of_range_attr,
2972 uint64_t expected_attrs, struct flow *flow,
2973 const struct nlattr *key, size_t key_len,
2974 const struct flow *src_flow)
2976 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2977 bool is_mask = src_flow != flow;
2978 const void *check_start = NULL;
2979 size_t check_len = 0;
2980 enum ovs_key_attr expected_bit = 0xff;
2982 if (eth_type_mpls(src_flow->dl_type)) {
2983 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
2984 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
2985 int n = size / sizeof(ovs_be32);
2988 if (!size || size % sizeof(ovs_be32)) {
2989 return ODP_FIT_ERROR;
2993 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2995 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2996 return ODP_FIT_TOO_LITTLE;
2998 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
2999 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
3000 return ODP_FIT_ERROR;
3002 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3005 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3006 flow->mpls_lse[i] = mpls_lse[i];
3008 if (n > FLOW_MAX_MPLS_LABELS) {
3009 return ODP_FIT_TOO_MUCH;
3013 /* BOS may be set only in the innermost label. */
3014 for (i = 0; i < n - 1; i++) {
3015 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3016 return ODP_FIT_ERROR;
3020 /* BOS must be set in the innermost label. */
3021 if (n < FLOW_MAX_MPLS_LABELS
3022 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3023 return ODP_FIT_TOO_LITTLE;
3028 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3030 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3032 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3033 const struct ovs_key_ipv4 *ipv4_key;
3035 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3036 flow->nw_src = ipv4_key->ipv4_src;
3037 flow->nw_dst = ipv4_key->ipv4_dst;
3038 flow->nw_proto = ipv4_key->ipv4_proto;
3039 flow->nw_tos = ipv4_key->ipv4_tos;
3040 flow->nw_ttl = ipv4_key->ipv4_ttl;
3042 flow->nw_frag = ipv4_key->ipv4_frag;
3043 check_start = ipv4_key;
3044 check_len = sizeof *ipv4_key;
3045 expected_bit = OVS_KEY_ATTR_IPV4;
3046 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3047 return ODP_FIT_ERROR;
3050 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3052 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3054 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3055 const struct ovs_key_ipv6 *ipv6_key;
3057 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3058 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3059 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3060 flow->ipv6_label = ipv6_key->ipv6_label;
3061 flow->nw_proto = ipv6_key->ipv6_proto;
3062 flow->nw_tos = ipv6_key->ipv6_tclass;
3063 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3065 flow->nw_frag = ipv6_key->ipv6_frag;
3066 check_start = ipv6_key;
3067 check_len = sizeof *ipv6_key;
3068 expected_bit = OVS_KEY_ATTR_IPV6;
3069 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3070 return ODP_FIT_ERROR;
3073 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3074 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3076 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3078 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3079 const struct ovs_key_arp *arp_key;
3081 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3082 flow->nw_src = arp_key->arp_sip;
3083 flow->nw_dst = arp_key->arp_tip;
3084 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3085 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3086 "key", ntohs(arp_key->arp_op));
3087 return ODP_FIT_ERROR;
3089 flow->nw_proto = ntohs(arp_key->arp_op);
3090 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3091 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3094 check_start = arp_key;
3095 check_len = sizeof *arp_key;
3096 expected_bit = OVS_KEY_ATTR_ARP;
3102 if (check_len > 0) { /* Happens only when 'is_mask'. */
3103 if (!is_all_zeros(check_start, check_len) &&
3104 flow->dl_type != htons(0xffff)) {
3105 return ODP_FIT_ERROR;
3107 expected_attrs |= UINT64_C(1) << expected_bit;
3111 expected_bit = OVS_KEY_ATTR_UNSPEC;
3112 if (src_flow->nw_proto == IPPROTO_TCP
3113 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3114 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3115 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3117 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3119 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3120 const struct ovs_key_tcp *tcp_key;
3122 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3123 flow->tp_src = tcp_key->tcp_src;
3124 flow->tp_dst = tcp_key->tcp_dst;
3125 expected_bit = OVS_KEY_ATTR_TCP;
3127 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3128 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3129 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3131 } else if (src_flow->nw_proto == IPPROTO_UDP
3132 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3133 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3134 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3136 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3138 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3139 const struct ovs_key_udp *udp_key;
3141 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3142 flow->tp_src = udp_key->udp_src;
3143 flow->tp_dst = udp_key->udp_dst;
3144 expected_bit = OVS_KEY_ATTR_UDP;
3146 } else if (src_flow->nw_proto == IPPROTO_SCTP
3147 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3148 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3149 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3151 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3153 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3154 const struct ovs_key_sctp *sctp_key;
3156 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3157 flow->tp_src = sctp_key->sctp_src;
3158 flow->tp_dst = sctp_key->sctp_dst;
3159 expected_bit = OVS_KEY_ATTR_SCTP;
3161 } else if (src_flow->nw_proto == IPPROTO_ICMP
3162 && src_flow->dl_type == htons(ETH_TYPE_IP)
3163 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3165 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3167 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3168 const struct ovs_key_icmp *icmp_key;
3170 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3171 flow->tp_src = htons(icmp_key->icmp_type);
3172 flow->tp_dst = htons(icmp_key->icmp_code);
3173 expected_bit = OVS_KEY_ATTR_ICMP;
3175 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
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_ICMPV6;
3181 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3182 const struct ovs_key_icmpv6 *icmpv6_key;
3184 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3185 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3186 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3187 expected_bit = OVS_KEY_ATTR_ICMPV6;
3188 if (src_flow->tp_dst == htons(0) &&
3189 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3190 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3192 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3194 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3195 const struct ovs_key_nd *nd_key;
3197 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3198 memcpy(&flow->nd_target, nd_key->nd_target,
3199 sizeof flow->nd_target);
3200 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3201 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3203 if (!is_all_zeros((const uint8_t *) nd_key,
3205 (flow->tp_src != htons(0xffff) ||
3206 flow->tp_dst != htons(0xffff))) {
3207 return ODP_FIT_ERROR;
3209 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3216 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3217 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3218 return ODP_FIT_ERROR;
3220 expected_attrs |= UINT64_C(1) << expected_bit;
3225 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3229 /* Parse 802.1Q header then encapsulated L3 attributes. */
3230 static enum odp_key_fitness
3231 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3232 uint64_t present_attrs, int out_of_range_attr,
3233 uint64_t expected_attrs, struct flow *flow,
3234 const struct nlattr *key, size_t key_len,
3235 const struct flow *src_flow)
3237 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3238 bool is_mask = src_flow != flow;
3240 const struct nlattr *encap
3241 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3242 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3243 enum odp_key_fitness encap_fitness;
3244 enum odp_key_fitness fitness;
3246 /* Calculate fitness of outer attributes. */
3248 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3249 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3251 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3252 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3254 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3255 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3258 fitness = check_expectations(present_attrs, out_of_range_attr,
3259 expected_attrs, key, key_len);
3262 * Remove the TPID from dl_type since it's not the real Ethertype. */
3263 flow->dl_type = htons(0);
3264 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3265 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3268 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3269 return ODP_FIT_TOO_LITTLE;
3270 } else if (flow->vlan_tci == htons(0)) {
3271 /* Corner case for a truncated 802.1Q header. */
3272 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3273 return ODP_FIT_TOO_MUCH;
3276 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3277 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3278 "but CFI bit is not set", ntohs(flow->vlan_tci));
3279 return ODP_FIT_ERROR;
3282 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3287 /* Now parse the encapsulated attributes. */
3288 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3289 attrs, &present_attrs, &out_of_range_attr)) {
3290 return ODP_FIT_ERROR;
3294 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3295 return ODP_FIT_ERROR;
3297 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3298 expected_attrs, flow, key, key_len,
3301 /* The overall fitness is the worse of the outer and inner attributes. */
3302 return MAX(fitness, encap_fitness);
3305 static enum odp_key_fitness
3306 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3307 struct flow *flow, const struct flow *src_flow)
3309 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3310 uint64_t expected_attrs;
3311 uint64_t present_attrs;
3312 int out_of_range_attr;
3313 bool is_mask = src_flow != flow;
3315 memset(flow, 0, sizeof *flow);
3317 /* Parse attributes. */
3318 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3319 &out_of_range_attr)) {
3320 return ODP_FIT_ERROR;
3325 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3326 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3327 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3328 } else if (is_mask) {
3329 /* Always exact match recirc_id if it is not specified. */
3330 flow->recirc_id = UINT32_MAX;
3333 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3334 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3335 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3337 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3338 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3339 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3342 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3343 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3344 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3347 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3348 enum odp_key_fitness res;
3350 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3351 if (res == ODP_FIT_ERROR) {
3352 return ODP_FIT_ERROR;
3353 } else if (res == ODP_FIT_PERFECT) {
3354 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3358 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3359 flow->in_port.odp_port
3360 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3361 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3362 } else if (!is_mask) {
3363 flow->in_port.odp_port = ODPP_NONE;
3366 /* Ethernet header. */
3367 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3368 const struct ovs_key_ethernet *eth_key;
3370 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3371 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3372 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3374 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3378 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3381 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3382 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3384 return ODP_FIT_ERROR;
3388 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3389 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3390 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3391 expected_attrs, flow, key, key_len, src_flow);
3394 flow->vlan_tci = htons(0xffff);
3395 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3396 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3397 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3400 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3401 expected_attrs, flow, key, key_len, src_flow);
3404 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3405 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3406 * 'key' fits our expectations for what a flow key should contain.
3408 * The 'in_port' will be the datapath's understanding of the port. The
3409 * caller will need to translate with odp_port_to_ofp_port() if the
3410 * OpenFlow port is needed.
3412 * This function doesn't take the packet itself as an argument because none of
3413 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3414 * it is always possible to infer which additional attribute(s) should appear
3415 * by looking at the attributes for lower-level protocols, e.g. if the network
3416 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3417 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3418 * must be absent. */
3419 enum odp_key_fitness
3420 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3423 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3426 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3427 * structure in 'mask'. 'flow' must be a previously translated flow
3428 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3429 * 'key' fits our expectations for what a flow key should contain. */
3430 enum odp_key_fitness
3431 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3432 struct flow *mask, const struct flow *flow)
3434 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3437 /* Returns 'fitness' as a string, for use in debug messages. */
3439 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3442 case ODP_FIT_PERFECT:
3444 case ODP_FIT_TOO_MUCH:
3446 case ODP_FIT_TOO_LITTLE:
3447 return "too_little";
3455 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3456 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3457 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3458 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3459 * null, then the return value is not meaningful.) */
3461 odp_put_userspace_action(uint32_t pid,
3462 const void *userdata, size_t userdata_size,
3463 struct ofpbuf *odp_actions)
3465 size_t userdata_ofs;
3468 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3469 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3471 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3473 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3474 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3477 * - The kernel rejected shorter userdata with -ERANGE.
3479 * - The kernel silently dropped userdata beyond the first 8 bytes.
3481 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3482 * separately disable features that required more than 8 bytes.) */
3483 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3484 MAX(8, userdata_size)),
3485 userdata, userdata_size);
3489 nl_msg_end_nested(odp_actions, offset);
3491 return userdata_ofs;
3495 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3496 struct ofpbuf *odp_actions)
3498 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3499 tun_key_to_attr(odp_actions, tunnel);
3500 nl_msg_end_nested(odp_actions, offset);
3503 /* The commit_odp_actions() function and its helpers. */
3506 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3507 const void *key, size_t key_size)
3509 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3510 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3511 nl_msg_end_nested(odp_actions, offset);
3515 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3516 struct ofpbuf *odp_actions)
3518 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3522 /* If any of the flow key data that ODP actions can modify are different in
3523 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3524 * 'odp_actions' that change the flow tunneling information in key from
3525 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3526 * same way. In other words, operates the same as commit_odp_actions(), but
3527 * only on tunneling information. */
3529 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3530 struct ofpbuf *odp_actions)
3532 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3533 if (flow->tunnel.ip_dst) {
3534 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3537 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3538 odp_put_tunnel_action(&base->tunnel, odp_actions);
3543 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3544 struct ofpbuf *odp_actions,
3545 struct flow_wildcards *wc)
3547 struct ovs_key_ethernet eth_key;
3549 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3550 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3554 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3555 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3557 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3558 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3560 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3561 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3563 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3564 ð_key, sizeof(eth_key));
3568 pop_vlan(struct flow *base,
3569 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3571 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3573 if (base->vlan_tci & htons(VLAN_CFI)) {
3574 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3580 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3581 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3583 if (base->vlan_tci == vlan_tci) {
3587 pop_vlan(base, odp_actions, wc);
3588 if (vlan_tci & htons(VLAN_CFI)) {
3589 struct ovs_action_push_vlan vlan;
3591 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3592 vlan.vlan_tci = vlan_tci;
3593 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3594 &vlan, sizeof vlan);
3596 base->vlan_tci = vlan_tci;
3600 commit_mpls_action(const struct flow *flow, struct flow *base,
3601 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3603 int base_n = flow_count_mpls_labels(base, wc);
3604 int flow_n = flow_count_mpls_labels(flow, wc);
3605 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3608 while (base_n > common_n) {
3609 if (base_n - 1 == common_n && flow_n > common_n) {
3610 /* If there is only one more LSE in base than there are common
3611 * between base and flow; and flow has at least one more LSE than
3612 * is common then the topmost LSE of base may be updated using
3614 struct ovs_key_mpls mpls_key;
3616 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3617 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3618 &mpls_key, sizeof mpls_key);
3619 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3622 /* Otherwise, if there more LSEs in base than are common between
3623 * base and flow then pop the topmost one. */
3627 /* If all the LSEs are to be popped and this is not the outermost
3628 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3629 * POP_MPLS action instead of flow->dl_type.
3631 * This is because the POP_MPLS action requires its ethertype
3632 * argument to be an MPLS ethernet type but in this case
3633 * flow->dl_type will be a non-MPLS ethernet type.
3635 * When the final POP_MPLS action occurs it use flow->dl_type and
3636 * the and the resulting packet will have the desired dl_type. */
3637 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3638 dl_type = htons(ETH_TYPE_MPLS);
3640 dl_type = flow->dl_type;
3642 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3643 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3649 /* If, after the above popping and setting, there are more LSEs in flow
3650 * than base then some LSEs need to be pushed. */
3651 while (base_n < flow_n) {
3652 struct ovs_action_push_mpls *mpls;
3654 mpls = nl_msg_put_unspec_zero(odp_actions,
3655 OVS_ACTION_ATTR_PUSH_MPLS,
3657 mpls->mpls_ethertype = flow->dl_type;
3658 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3659 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3660 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3666 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3667 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3669 struct ovs_key_ipv4 ipv4_key;
3671 if (base->nw_src == flow->nw_src &&
3672 base->nw_dst == flow->nw_dst &&
3673 base->nw_tos == flow->nw_tos &&
3674 base->nw_ttl == flow->nw_ttl &&
3675 base->nw_frag == flow->nw_frag) {
3679 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3680 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3681 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3682 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3683 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3684 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3686 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3687 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3688 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3689 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3690 ipv4_key.ipv4_proto = base->nw_proto;
3691 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3693 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3694 &ipv4_key, sizeof(ipv4_key));
3698 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3699 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3701 struct ovs_key_ipv6 ipv6_key;
3703 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3704 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3705 base->ipv6_label == flow->ipv6_label &&
3706 base->nw_tos == flow->nw_tos &&
3707 base->nw_ttl == flow->nw_ttl &&
3708 base->nw_frag == flow->nw_frag) {
3712 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3713 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3714 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3715 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3716 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3717 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3718 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3720 base->ipv6_src = flow->ipv6_src;
3721 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3722 base->ipv6_dst = flow->ipv6_dst;
3723 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3725 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3726 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3727 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3728 ipv6_key.ipv6_proto = base->nw_proto;
3729 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3731 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3732 &ipv6_key, sizeof(ipv6_key));
3735 static enum slow_path_reason
3736 commit_set_arp_action(const struct flow *flow, struct flow *base,
3737 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3739 struct ovs_key_arp arp_key;
3741 if (base->nw_src == flow->nw_src &&
3742 base->nw_dst == flow->nw_dst &&
3743 base->nw_proto == flow->nw_proto &&
3744 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3745 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3749 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3750 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3751 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3752 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3753 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3755 base->nw_src = flow->nw_src;
3756 base->nw_dst = flow->nw_dst;
3757 base->nw_proto = flow->nw_proto;
3758 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3759 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3761 arp_key.arp_sip = base->nw_src;
3762 arp_key.arp_tip = base->nw_dst;
3763 arp_key.arp_op = htons(base->nw_proto);
3764 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3765 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3767 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3772 static enum slow_path_reason
3773 commit_set_nw_action(const struct flow *flow, struct flow *base,
3774 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3776 /* Check if 'flow' really has an L3 header. */
3777 if (!flow->nw_proto) {
3781 switch (ntohs(base->dl_type)) {
3783 commit_set_ipv4_action(flow, base, odp_actions, wc);
3787 commit_set_ipv6_action(flow, base, odp_actions, wc);
3791 return commit_set_arp_action(flow, base, odp_actions, wc);
3798 commit_set_port_action(const struct flow *flow, struct flow *base,
3799 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3801 /* Check if 'flow' really has an L3 header. */
3802 if (!flow->nw_proto) {
3806 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3810 if (base->tp_src == flow->tp_src &&
3811 base->tp_dst == flow->tp_dst) {
3815 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3816 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3818 if (flow->nw_proto == IPPROTO_TCP) {
3819 struct ovs_key_tcp port_key;
3821 port_key.tcp_src = base->tp_src = flow->tp_src;
3822 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3824 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3825 &port_key, sizeof(port_key));
3827 } else if (flow->nw_proto == IPPROTO_UDP) {
3828 struct ovs_key_udp port_key;
3830 port_key.udp_src = base->tp_src = flow->tp_src;
3831 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3833 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3834 &port_key, sizeof(port_key));
3835 } else if (flow->nw_proto == IPPROTO_SCTP) {
3836 struct ovs_key_sctp port_key;
3838 port_key.sctp_src = base->tp_src = flow->tp_src;
3839 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3841 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3842 &port_key, sizeof(port_key));
3847 commit_set_priority_action(const struct flow *flow, struct flow *base,
3848 struct ofpbuf *odp_actions,
3849 struct flow_wildcards *wc)
3851 if (base->skb_priority == flow->skb_priority) {
3855 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3856 base->skb_priority = flow->skb_priority;
3858 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3859 &base->skb_priority, sizeof(base->skb_priority));
3863 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3864 struct ofpbuf *odp_actions,
3865 struct flow_wildcards *wc)
3867 if (base->pkt_mark == flow->pkt_mark) {
3871 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3872 base->pkt_mark = flow->pkt_mark;
3874 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3877 /* If any of the flow key data that ODP actions can modify are different in
3878 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3879 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3880 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3881 * in addition to this function if needed. Sets fields in 'wc' that are
3882 * used as part of the action.
3884 * Returns a reason to force processing the flow's packets into the userspace
3885 * slow path, if there is one, otherwise 0. */
3886 enum slow_path_reason
3887 commit_odp_actions(const struct flow *flow, struct flow *base,
3888 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3890 enum slow_path_reason slow;
3892 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3893 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3894 commit_set_port_action(flow, base, odp_actions, wc);
3895 commit_mpls_action(flow, base, odp_actions, wc);
3896 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3897 commit_set_priority_action(flow, base, odp_actions, wc);
3898 commit_set_pkt_mark_action(flow, base, odp_actions, wc);