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_bias);
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_MAX:
842 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
845 const struct nlattr *a;
847 bool unknown = false;
849 NL_NESTED_FOR_EACH(a, left, attr) {
850 uint16_t type = nl_attr_type(a);
851 size_t len = nl_attr_get_size(a);
852 int expected_len = tunnel_key_attr_len(type);
854 if (len != expected_len && expected_len >= 0) {
855 return ODP_FIT_ERROR;
859 case OVS_TUNNEL_KEY_ATTR_ID:
860 tun->tun_id = nl_attr_get_be64(a);
861 tun->flags |= FLOW_TNL_F_KEY;
863 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
864 tun->ip_src = nl_attr_get_be32(a);
866 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
867 tun->ip_dst = nl_attr_get_be32(a);
869 case OVS_TUNNEL_KEY_ATTR_TOS:
870 tun->ip_tos = nl_attr_get_u8(a);
872 case OVS_TUNNEL_KEY_ATTR_TTL:
873 tun->ip_ttl = nl_attr_get_u8(a);
876 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
877 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
879 case OVS_TUNNEL_KEY_ATTR_CSUM:
880 tun->flags |= FLOW_TNL_F_CSUM;
883 /* Allow this to show up as unexpected, if there are unknown
884 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
891 return ODP_FIT_ERROR;
894 return ODP_FIT_TOO_MUCH;
896 return ODP_FIT_PERFECT;
900 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
904 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
906 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
907 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
908 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
910 if (tun_key->ip_src) {
911 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
913 if (tun_key->ip_dst) {
914 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
916 if (tun_key->ip_tos) {
917 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
919 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
920 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
921 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
923 if (tun_key->flags & FLOW_TNL_F_CSUM) {
924 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
927 nl_msg_end_nested(a, tun_key_ofs);
931 odp_mask_attr_is_wildcard(const struct nlattr *ma)
933 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
937 odp_mask_attr_is_exact(const struct nlattr *ma)
939 bool is_exact = false;
940 enum ovs_key_attr attr = nl_attr_type(ma);
942 if (attr == OVS_KEY_ATTR_TUNNEL) {
943 /* XXX this is a hack for now. Should change
944 * the exact match dection to per field
945 * instead of per attribute.
947 struct flow_tnl tun_mask;
948 memset(&tun_mask, 0, sizeof tun_mask);
949 odp_tun_key_from_attr(ma, &tun_mask);
950 if (tun_mask.flags == (FLOW_TNL_F_KEY
951 | FLOW_TNL_F_DONT_FRAGMENT
952 | FLOW_TNL_F_CSUM)) {
953 /* The flags are exact match, check the remaining fields. */
954 tun_mask.flags = 0xffff;
955 is_exact = is_all_ones((uint8_t *)&tun_mask,
956 offsetof(struct flow_tnl, ip_ttl));
959 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
966 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
969 struct odp_portno_names *odp_portno_names;
971 odp_portno_names = xmalloc(sizeof *odp_portno_names);
972 odp_portno_names->port_no = port_no;
973 odp_portno_names->name = xstrdup(port_name);
974 hmap_insert(portno_names, &odp_portno_names->hmap_node,
975 hash_odp_port(port_no));
979 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
981 struct odp_portno_names *odp_portno_names;
983 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
984 hash_odp_port(port_no), portno_names) {
985 if (odp_portno_names->port_no == port_no) {
986 return odp_portno_names->name;
993 odp_portno_names_destroy(struct hmap *portno_names)
995 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
996 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
997 hmap_node, portno_names) {
998 hmap_remove(portno_names, &odp_portno_names->hmap_node);
999 free(odp_portno_names->name);
1000 free(odp_portno_names);
1005 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1006 const struct hmap *portno_names, struct ds *ds,
1009 struct flow_tnl tun_key;
1010 enum ovs_key_attr attr = nl_attr_type(a);
1011 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1015 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1017 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1020 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1021 if (expected_len != -2) {
1022 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1023 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1025 if (bad_key_len || bad_mask_len) {
1027 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1028 nl_attr_get_size(a), expected_len);
1030 format_generic_odp_key(a, ds);
1032 ds_put_char(ds, '/');
1034 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1035 nl_attr_get_size(ma), expected_len);
1037 format_generic_odp_key(ma, ds);
1039 ds_put_char(ds, ')');
1045 ds_put_char(ds, '(');
1047 case OVS_KEY_ATTR_ENCAP:
1048 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1049 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1050 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1052 } else if (nl_attr_get_size(a)) {
1053 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1058 case OVS_KEY_ATTR_PRIORITY:
1059 case OVS_KEY_ATTR_SKB_MARK:
1060 case OVS_KEY_ATTR_DP_HASH:
1061 case OVS_KEY_ATTR_RECIRC_ID:
1062 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1064 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1068 case OVS_KEY_ATTR_TUNNEL:
1069 memset(&tun_key, 0, sizeof tun_key);
1070 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1071 ds_put_format(ds, "error");
1072 } else if (!is_exact) {
1073 struct flow_tnl tun_mask;
1075 memset(&tun_mask, 0, sizeof tun_mask);
1076 odp_tun_key_from_attr(ma, &tun_mask);
1077 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1078 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1079 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1081 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1082 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1083 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1084 tun_key.ip_tos, tun_mask.ip_tos,
1085 tun_key.ip_ttl, tun_mask.ip_ttl);
1087 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1089 /* XXX This code is correct, but enabling it would break the unit
1090 test. Disable it for now until the input parser is fixed.
1092 ds_put_char(ds, '/');
1093 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1095 ds_put_char(ds, ')');
1097 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1098 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1099 ntohll(tun_key.tun_id),
1100 IP_ARGS(tun_key.ip_src),
1101 IP_ARGS(tun_key.ip_dst),
1102 tun_key.ip_tos, tun_key.ip_ttl);
1104 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1105 ds_put_char(ds, ')');
1109 case OVS_KEY_ATTR_IN_PORT:
1110 if (portno_names && verbose && is_exact) {
1111 char *name = odp_portno_names_get(portno_names,
1112 u32_to_odp(nl_attr_get_u32(a)));
1114 ds_put_format(ds, "%s", name);
1116 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1119 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1121 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1126 case OVS_KEY_ATTR_ETHERNET:
1128 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1129 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1131 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1132 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1133 ETH_ADDR_ARGS(eth_key->eth_src),
1134 ETH_ADDR_ARGS(eth_mask->eth_src),
1135 ETH_ADDR_ARGS(eth_key->eth_dst),
1136 ETH_ADDR_ARGS(eth_mask->eth_dst));
1138 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1140 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1141 ETH_ADDR_ARGS(eth_key->eth_src),
1142 ETH_ADDR_ARGS(eth_key->eth_dst));
1146 case OVS_KEY_ATTR_VLAN:
1148 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1150 ovs_be16 mask = nl_attr_get_be16(ma);
1151 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1152 vlan_tci_to_vid(vlan_tci),
1153 vlan_tci_to_vid(mask),
1154 vlan_tci_to_pcp(vlan_tci),
1155 vlan_tci_to_pcp(mask),
1156 vlan_tci_to_cfi(vlan_tci),
1157 vlan_tci_to_cfi(mask));
1159 format_vlan_tci(ds, vlan_tci);
1164 case OVS_KEY_ATTR_MPLS: {
1165 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1166 const struct ovs_key_mpls *mpls_mask = NULL;
1167 size_t size = nl_attr_get_size(a);
1169 if (!size || size % sizeof *mpls_key) {
1170 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1171 nl_attr_get_size(a));
1175 mpls_mask = nl_attr_get(ma);
1176 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1177 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1178 "mask length %"PRIuSIZE")",
1179 nl_attr_get_size(a), nl_attr_get_size(ma));
1183 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1187 case OVS_KEY_ATTR_ETHERTYPE:
1188 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1190 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1194 case OVS_KEY_ATTR_IPV4:
1196 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1197 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1199 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1200 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1201 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1202 IP_ARGS(ipv4_key->ipv4_src),
1203 IP_ARGS(ipv4_mask->ipv4_src),
1204 IP_ARGS(ipv4_key->ipv4_dst),
1205 IP_ARGS(ipv4_mask->ipv4_dst),
1206 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1207 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1208 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1209 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1210 ipv4_mask->ipv4_frag);
1212 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1214 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1215 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1216 IP_ARGS(ipv4_key->ipv4_src),
1217 IP_ARGS(ipv4_key->ipv4_dst),
1218 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1220 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1224 case OVS_KEY_ATTR_IPV6:
1226 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1227 char src_str[INET6_ADDRSTRLEN];
1228 char dst_str[INET6_ADDRSTRLEN];
1229 char src_mask[INET6_ADDRSTRLEN];
1230 char dst_mask[INET6_ADDRSTRLEN];
1232 ipv6_key = nl_attr_get(a);
1233 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1234 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1236 ipv6_mask = nl_attr_get(ma);
1237 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1238 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1240 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1241 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1242 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1243 src_str, src_mask, dst_str, dst_mask,
1244 ntohl(ipv6_key->ipv6_label),
1245 ntohl(ipv6_mask->ipv6_label),
1246 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1247 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1248 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1249 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1250 ipv6_mask->ipv6_frag);
1252 const struct ovs_key_ipv6 *ipv6_key;
1253 char src_str[INET6_ADDRSTRLEN];
1254 char dst_str[INET6_ADDRSTRLEN];
1256 ipv6_key = nl_attr_get(a);
1257 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1258 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1260 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1261 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1262 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1263 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1264 ipv6_key->ipv6_hlimit,
1265 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1269 case OVS_KEY_ATTR_TCP:
1271 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1272 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1274 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1275 ",dst=%"PRIu16"/%#"PRIx16,
1276 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1277 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1279 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1281 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1282 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1286 case OVS_KEY_ATTR_TCP_FLAGS:
1287 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1289 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1293 case OVS_KEY_ATTR_UDP:
1295 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1296 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1298 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1299 ",dst=%"PRIu16"/%#"PRIx16,
1300 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1301 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1303 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1305 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1306 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1310 case OVS_KEY_ATTR_SCTP:
1312 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1313 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1315 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1316 ",dst=%"PRIu16"/%#"PRIx16,
1317 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1318 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1320 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1322 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
1323 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1327 case OVS_KEY_ATTR_ICMP:
1329 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1330 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1332 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1333 icmp_key->icmp_type, icmp_mask->icmp_type,
1334 icmp_key->icmp_code, icmp_mask->icmp_code);
1336 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1338 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1339 icmp_key->icmp_type, icmp_key->icmp_code);
1343 case OVS_KEY_ATTR_ICMPV6:
1345 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1346 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1348 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1349 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1350 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1352 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1354 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1355 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1359 case OVS_KEY_ATTR_ARP:
1361 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1362 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1364 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1365 ",op=%"PRIu16"/%#"PRIx16
1366 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1367 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1368 IP_ARGS(arp_key->arp_sip),
1369 IP_ARGS(arp_mask->arp_sip),
1370 IP_ARGS(arp_key->arp_tip),
1371 IP_ARGS(arp_mask->arp_tip),
1372 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1373 ETH_ADDR_ARGS(arp_key->arp_sha),
1374 ETH_ADDR_ARGS(arp_mask->arp_sha),
1375 ETH_ADDR_ARGS(arp_key->arp_tha),
1376 ETH_ADDR_ARGS(arp_mask->arp_tha));
1378 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1380 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1381 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1382 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1383 ntohs(arp_key->arp_op),
1384 ETH_ADDR_ARGS(arp_key->arp_sha),
1385 ETH_ADDR_ARGS(arp_key->arp_tha));
1389 case OVS_KEY_ATTR_ND: {
1390 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1391 char target[INET6_ADDRSTRLEN];
1393 nd_key = nl_attr_get(a);
1395 nd_mask = nl_attr_get(ma);
1398 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1399 ds_put_format(ds, "target=%s", target);
1401 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1402 ds_put_format(ds, "/%s", target);
1405 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1406 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1407 ETH_ADDR_ARGS(nd_key->nd_sll));
1409 ds_put_format(ds, "/"ETH_ADDR_FMT,
1410 ETH_ADDR_ARGS(nd_mask->nd_sll));
1413 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1414 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1415 ETH_ADDR_ARGS(nd_key->nd_tll));
1417 ds_put_format(ds, "/"ETH_ADDR_FMT,
1418 ETH_ADDR_ARGS(nd_mask->nd_tll));
1423 case OVS_KEY_ATTR_UNSPEC:
1424 case __OVS_KEY_ATTR_MAX:
1426 format_generic_odp_key(a, ds);
1428 ds_put_char(ds, '/');
1429 format_generic_odp_key(ma, ds);
1433 ds_put_char(ds, ')');
1436 static struct nlattr *
1437 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1439 const struct nlattr *a;
1441 int type = nl_attr_type(key);
1442 int size = nl_attr_get_size(key);
1444 if (odp_flow_key_attr_len(type) >=0) {
1445 nl_msg_put_unspec_zero(ofp, type, size);
1449 nested_mask = nl_msg_start_nested(ofp, type);
1450 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1451 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1453 nl_msg_end_nested(ofp, nested_mask);
1456 return ofpbuf_base(ofp);
1459 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1460 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1461 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1462 * non-null and 'verbose' is true, translates odp port number to its name. */
1464 odp_flow_format(const struct nlattr *key, size_t key_len,
1465 const struct nlattr *mask, size_t mask_len,
1466 const struct hmap *portno_names, struct ds *ds, bool verbose)
1469 const struct nlattr *a;
1471 bool has_ethtype_key = false;
1472 const struct nlattr *ma = NULL;
1474 bool first_field = true;
1476 ofpbuf_init(&ofp, 100);
1477 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1478 bool is_nested_attr;
1479 bool is_wildcard = false;
1480 int attr_type = nl_attr_type(a);
1482 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1483 has_ethtype_key = true;
1486 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1488 if (mask && mask_len) {
1489 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1490 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1493 if (verbose || !is_wildcard || is_nested_attr) {
1494 if (is_wildcard && !ma) {
1495 ma = generate_all_wildcard_mask(&ofp, a);
1498 ds_put_char(ds, ',');
1500 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1501 first_field = false;
1505 ofpbuf_uninit(&ofp);
1510 if (left == key_len) {
1511 ds_put_cstr(ds, "<empty>");
1513 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1514 for (i = 0; i < left; i++) {
1515 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1517 ds_put_char(ds, ')');
1519 if (!has_ethtype_key) {
1520 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1522 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1523 ntohs(nl_attr_get_be16(ma)));
1527 ds_put_cstr(ds, "<empty>");
1531 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1532 * OVS_KEY_ATTR_* attributes in 'key'. */
1534 odp_flow_key_format(const struct nlattr *key,
1535 size_t key_len, struct ds *ds)
1537 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1541 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1542 const uint8_t *nd_tll, struct ofpbuf *key)
1545 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1549 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1552 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1556 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1557 const uint8_t *nd_tll, struct ofpbuf *key)
1559 struct ovs_key_nd nd_key;
1561 memset(&nd_key, 0, sizeof nd_key);
1563 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1567 put_nd(&nd_key, nd_sll, nd_tll, key);
1572 put_nd_mask(int n, const char *nd_target_s,
1573 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1575 struct ovs_key_nd nd_mask;
1577 memset(&nd_mask, 0xff, sizeof nd_mask);
1579 if (strlen(nd_target_s) != 0 &&
1580 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1584 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1589 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1591 if (!strcasecmp(s, "no")) {
1592 *type = OVS_FRAG_TYPE_NONE;
1593 } else if (!strcasecmp(s, "first")) {
1594 *type = OVS_FRAG_TYPE_FIRST;
1595 } else if (!strcasecmp(s, "later")) {
1596 *type = OVS_FRAG_TYPE_LATER;
1604 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1606 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1607 (mpls_tc << MPLS_TC_SHIFT) |
1608 (mpls_ttl << MPLS_TTL_SHIFT) |
1609 (mpls_bos << MPLS_BOS_SHIFT)));
1613 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1614 struct ofpbuf *key, struct ofpbuf *mask)
1618 uint32_t priority_mask;
1621 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1622 &priority, &priority_mask, &n)) {
1623 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1624 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1626 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1627 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1629 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1640 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1642 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1643 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1645 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1646 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1648 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1658 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1659 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1660 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1667 uint32_t dp_hash_mask;
1670 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1671 &dp_hash_mask, &n)) {
1672 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1673 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1675 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1676 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1678 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1685 uint64_t tun_id, tun_id_mask;
1686 struct flow_tnl tun_key, tun_key_mask;
1689 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1690 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1691 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1692 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1693 &tun_id, &tun_id_mask,
1694 IP_SCAN_ARGS(&tun_key.ip_src),
1695 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1696 IP_SCAN_ARGS(&tun_key.ip_dst),
1697 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1698 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1699 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1703 tun_key.tun_id = htonll(tun_id);
1704 tun_key_mask.tun_id = htonll(tun_id_mask);
1705 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1706 tun_key.flags = flags;
1707 tun_key_mask.flags = UINT16_MAX;
1717 tun_key_to_attr(key, &tun_key);
1719 tun_key_to_attr(mask, &tun_key_mask);
1722 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1723 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1724 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1725 IP_SCAN_ARGS(&tun_key.ip_src),
1726 IP_SCAN_ARGS(&tun_key.ip_dst),
1727 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1731 tun_key.tun_id = htonll(tun_id);
1732 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1733 tun_key.flags = flags;
1743 tun_key_to_attr(key, &tun_key);
1746 memset(&tun_key, 0xff, sizeof tun_key);
1747 tun_key_to_attr(mask, &tun_key);
1755 uint32_t in_port_mask;
1758 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1759 &in_port, &in_port_mask, &n)) {
1760 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1761 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1763 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1764 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1766 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1773 if (port_names && !strncmp(s, "in_port(", 8)) {
1775 const struct simap_node *node;
1779 name_len = strcspn(name, ")");
1780 node = simap_find_len(port_names, name, name_len);
1782 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1785 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1787 return 8 + name_len + 1;
1792 struct ovs_key_ethernet eth_key;
1793 struct ovs_key_ethernet eth_key_mask;
1796 if (mask && ovs_scan(s,
1797 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1798 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1799 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1800 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1801 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1802 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1803 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1804 ð_key, sizeof eth_key);
1805 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1806 ð_key_mask, sizeof eth_key_mask);
1808 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1809 "dst="ETH_ADDR_SCAN_FMT")%n",
1810 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1811 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1812 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1813 ð_key, sizeof eth_key);
1816 memset(ð_key, 0xff, sizeof eth_key);
1817 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1818 ð_key, sizeof eth_key);
1830 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1831 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1832 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1833 htons((vid << VLAN_VID_SHIFT) |
1834 (pcp << VLAN_PCP_SHIFT) |
1836 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1837 htons((vid_mask << VLAN_VID_SHIFT) |
1838 (pcp_mask << VLAN_PCP_SHIFT) |
1839 (1 << VLAN_CFI_SHIFT)));
1841 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1842 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1843 htons((vid << VLAN_VID_SHIFT) |
1844 (pcp << VLAN_PCP_SHIFT) |
1847 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1851 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1852 &vid, &vid_mask, &pcp, &pcp_mask,
1853 &cfi, &cfi_mask, &n)) {
1854 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1855 htons((vid << VLAN_VID_SHIFT) |
1856 (pcp << VLAN_PCP_SHIFT) |
1857 (cfi ? VLAN_CFI : 0)));
1858 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1859 htons((vid_mask << VLAN_VID_SHIFT) |
1860 (pcp_mask << VLAN_PCP_SHIFT) |
1861 (cfi_mask << VLAN_CFI_SHIFT)));
1863 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1864 &vid, &pcp, &cfi, &n)) {
1865 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1866 htons((vid << VLAN_VID_SHIFT) |
1867 (pcp << VLAN_PCP_SHIFT) |
1868 (cfi ? VLAN_CFI : 0)));
1870 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1881 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1882 ð_type, ð_type_mask, &n)) {
1883 if (eth_type != 0) {
1884 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1886 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1888 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1889 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1891 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
1898 int label, tc, ttl, bos;
1899 int label_mask, tc_mask, ttl_mask, bos_mask;
1902 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
1903 "ttl=%i/%i,bos=%i/%i)%n",
1904 &label, &label_mask, &tc, &tc_mask,
1905 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
1906 struct ovs_key_mpls *mpls, *mpls_mask;
1908 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1910 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1912 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1914 mpls_mask->mpls_lse = mpls_lse_from_components(
1915 label_mask, tc_mask, ttl_mask, bos_mask);
1917 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
1918 &label, &tc, &ttl, &bos, &n)) {
1919 struct ovs_key_mpls *mpls;
1921 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1923 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1925 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1927 mpls->mpls_lse = OVS_BE32_MAX;
1935 struct ovs_key_ipv4 ipv4_key;
1936 struct ovs_key_ipv4 ipv4_mask;
1939 enum ovs_frag_type ipv4_frag;
1943 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1944 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1945 "proto=%"SCNi8"/%"SCNi8","
1946 "tos=%"SCNi8"/%"SCNi8","
1947 "ttl=%"SCNi8"/%"SCNi8","
1948 "frag=%7[a-z]/%"SCNi8")%n",
1949 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1950 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
1951 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1952 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
1953 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
1954 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
1955 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
1956 frag, &ipv4_mask.ipv4_frag, &n)
1957 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1958 ipv4_key.ipv4_frag = ipv4_frag;
1959 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1960 &ipv4_key, sizeof ipv4_key);
1962 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1963 &ipv4_mask, sizeof ipv4_mask);
1965 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1966 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
1968 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1969 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1970 &ipv4_key.ipv4_proto,
1974 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1975 ipv4_key.ipv4_frag = ipv4_frag;
1976 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1977 &ipv4_key, sizeof ipv4_key);
1980 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1981 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1982 &ipv4_key, sizeof ipv4_key);
1989 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1990 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1991 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1992 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1993 int ipv6_label, ipv6_label_mask;
1994 int ipv6_proto, ipv6_proto_mask;
1995 int ipv6_tclass, ipv6_tclass_mask;
1996 int ipv6_hlimit, ipv6_hlimit_mask;
1998 enum ovs_frag_type ipv6_frag;
2002 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2003 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2004 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2005 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2006 ipv6_src_s, ipv6_src_mask_s,
2007 ipv6_dst_s, ipv6_dst_mask_s,
2008 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2009 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2010 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2011 &ipv6_frag_mask, &n)
2012 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2013 struct ovs_key_ipv6 ipv6_key;
2014 struct ovs_key_ipv6 ipv6_mask;
2016 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2017 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2018 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2019 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2023 ipv6_key.ipv6_label = htonl(ipv6_label);
2024 ipv6_key.ipv6_proto = ipv6_proto;
2025 ipv6_key.ipv6_tclass = ipv6_tclass;
2026 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2027 ipv6_key.ipv6_frag = ipv6_frag;
2028 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2029 &ipv6_key, sizeof ipv6_key);
2031 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2032 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2033 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2034 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2035 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2036 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2037 &ipv6_mask, sizeof ipv6_mask);
2039 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2040 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2042 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2043 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2044 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2045 struct ovs_key_ipv6 ipv6_key;
2047 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2048 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2051 ipv6_key.ipv6_label = htonl(ipv6_label);
2052 ipv6_key.ipv6_proto = ipv6_proto;
2053 ipv6_key.ipv6_tclass = ipv6_tclass;
2054 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2055 ipv6_key.ipv6_frag = ipv6_frag;
2056 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2057 &ipv6_key, sizeof ipv6_key);
2060 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2061 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2062 &ipv6_key, sizeof ipv6_key);
2075 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2076 &tcp_src, &tcp_src_mask, &tcp_dst,
2077 &tcp_dst_mask, &n)) {
2078 struct ovs_key_tcp tcp_key;
2079 struct ovs_key_tcp tcp_mask;
2081 tcp_key.tcp_src = htons(tcp_src);
2082 tcp_key.tcp_dst = htons(tcp_dst);
2083 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2085 tcp_mask.tcp_src = htons(tcp_src_mask);
2086 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2087 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2088 &tcp_mask, sizeof tcp_mask);
2090 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2091 &tcp_src, &tcp_dst, &n)) {
2092 struct ovs_key_tcp tcp_key;
2094 tcp_key.tcp_src = htons(tcp_src);
2095 tcp_key.tcp_dst = htons(tcp_dst);
2096 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2099 memset(&tcp_key, 0xff, sizeof tcp_key);
2100 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2101 &tcp_key, sizeof tcp_key);
2108 uint16_t tcp_flags, tcp_flags_mask;
2111 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2112 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2113 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2114 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2116 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2117 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2119 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2133 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2134 &udp_src, &udp_src_mask,
2135 &udp_dst, &udp_dst_mask, &n)) {
2136 struct ovs_key_udp udp_key;
2137 struct ovs_key_udp udp_mask;
2139 udp_key.udp_src = htons(udp_src);
2140 udp_key.udp_dst = htons(udp_dst);
2141 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2143 udp_mask.udp_src = htons(udp_src_mask);
2144 udp_mask.udp_dst = htons(udp_dst_mask);
2145 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2146 &udp_mask, sizeof udp_mask);
2149 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2150 struct ovs_key_udp udp_key;
2152 udp_key.udp_src = htons(udp_src);
2153 udp_key.udp_dst = htons(udp_dst);
2154 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2157 memset(&udp_key, 0xff, sizeof udp_key);
2158 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2171 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2172 &sctp_src, &sctp_src_mask,
2173 &sctp_dst, &sctp_dst_mask, &n)) {
2174 struct ovs_key_sctp sctp_key;
2175 struct ovs_key_sctp sctp_mask;
2177 sctp_key.sctp_src = htons(sctp_src);
2178 sctp_key.sctp_dst = htons(sctp_dst);
2179 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2181 sctp_mask.sctp_src = htons(sctp_src_mask);
2182 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2183 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2184 &sctp_mask, sizeof sctp_mask);
2187 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2188 struct ovs_key_sctp sctp_key;
2190 sctp_key.sctp_src = htons(sctp_src);
2191 sctp_key.sctp_dst = htons(sctp_dst);
2192 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2195 memset(&sctp_key, 0xff, sizeof sctp_key);
2196 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2203 struct ovs_key_icmp icmp_key;
2204 struct ovs_key_icmp icmp_mask;
2207 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2208 "code=%"SCNi8"/%"SCNi8")%n",
2209 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2210 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2211 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2212 &icmp_key, sizeof icmp_key);
2213 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2214 &icmp_mask, sizeof icmp_mask);
2216 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2217 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2218 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2219 &icmp_key, sizeof icmp_key);
2221 memset(&icmp_key, 0xff, sizeof icmp_key);
2222 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2230 struct ovs_key_icmpv6 icmpv6_key;
2231 struct ovs_key_icmpv6 icmpv6_mask;
2234 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2235 "code=%"SCNi8"/%"SCNi8")%n",
2236 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2237 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2239 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2240 &icmpv6_key, sizeof icmpv6_key);
2241 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2242 sizeof icmpv6_mask);
2244 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2245 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2247 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2248 &icmpv6_key, sizeof icmpv6_key);
2251 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2252 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2260 struct ovs_key_arp arp_key;
2261 struct ovs_key_arp arp_mask;
2262 uint16_t arp_op, arp_op_mask;
2265 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2266 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2267 "op=%"SCNi16"/%"SCNi16","
2268 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2269 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2270 IP_SCAN_ARGS(&arp_key.arp_sip),
2271 IP_SCAN_ARGS(&arp_mask.arp_sip),
2272 IP_SCAN_ARGS(&arp_key.arp_tip),
2273 IP_SCAN_ARGS(&arp_mask.arp_tip),
2274 &arp_op, &arp_op_mask,
2275 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2276 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2277 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2278 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2279 arp_key.arp_op = htons(arp_op);
2280 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2281 arp_mask.arp_op = htons(arp_op_mask);
2282 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2283 &arp_mask, sizeof arp_mask);
2285 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2286 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2287 "tha="ETH_ADDR_SCAN_FMT")%n",
2288 IP_SCAN_ARGS(&arp_key.arp_sip),
2289 IP_SCAN_ARGS(&arp_key.arp_tip),
2291 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2292 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2293 arp_key.arp_op = htons(arp_op);
2294 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2297 memset(&arp_key, 0xff, sizeof arp_key);
2298 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2299 &arp_key, sizeof arp_key);
2306 char nd_target_s[IPV6_SCAN_LEN + 1];
2307 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2308 uint8_t nd_sll[ETH_ADDR_LEN];
2309 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2310 uint8_t nd_tll[ETH_ADDR_LEN];
2311 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2314 nd_target_mask_s[0] = 0;
2315 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2316 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2318 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2319 nd_target_s, nd_target_mask_s, &n)) {
2320 put_nd_key(n, nd_target_s, NULL, NULL, key);
2321 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2322 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2324 put_nd_key(n, nd_target_s, NULL, NULL, key);
2326 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2329 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2330 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2331 nd_target_s, nd_target_mask_s,
2332 ETH_ADDR_SCAN_ARGS(nd_sll),
2333 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2334 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2335 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2336 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2337 "sll="ETH_ADDR_SCAN_FMT")%n",
2338 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2339 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2341 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2344 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2345 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2346 nd_target_s, nd_target_mask_s,
2347 ETH_ADDR_SCAN_ARGS(nd_tll),
2348 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2349 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2350 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2351 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2352 "tll="ETH_ADDR_SCAN_FMT")%n",
2353 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2354 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2356 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2359 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2360 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2361 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2362 nd_target_s, nd_target_mask_s,
2363 ETH_ADDR_SCAN_ARGS(nd_sll),
2364 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2365 ETH_ADDR_SCAN_ARGS(nd_tll),
2366 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2368 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2369 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2370 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2371 "sll="ETH_ADDR_SCAN_FMT","
2372 "tll="ETH_ADDR_SCAN_FMT")%n",
2373 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2374 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2375 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2377 put_nd_mask(n, nd_target_mask_s,
2378 nd_sll_mask, nd_tll_mask, mask);
2387 if (!strncmp(s, "encap(", 6)) {
2388 const char *start = s;
2389 size_t encap, encap_mask = 0;
2391 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2393 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2400 s += strspn(s, ", \t\r\n");
2403 } else if (*s == ')') {
2407 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2415 nl_msg_end_nested(key, encap);
2417 nl_msg_end_nested(mask, encap_mask);
2426 /* Parses the string representation of a datapath flow key, in the
2427 * format output by odp_flow_key_format(). Returns 0 if successful,
2428 * otherwise a positive errno value. On success, the flow key is
2429 * appended to 'key' as a series of Netlink attributes. On failure, no
2430 * data is appended to 'key'. Either way, 'key''s data might be
2433 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2434 * to a port number. (Port names may be used instead of port numbers in
2437 * On success, the attributes appended to 'key' are individually syntactically
2438 * valid, but they may not be valid as a sequence. 'key' might, for example,
2439 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2441 odp_flow_from_string(const char *s, const struct simap *port_names,
2442 struct ofpbuf *key, struct ofpbuf *mask)
2444 const size_t old_size = ofpbuf_size(key);
2448 s += strspn(s, delimiters);
2453 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2455 ofpbuf_set_size(key, old_size);
2465 ovs_to_odp_frag(uint8_t nw_frag)
2467 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2468 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2469 : OVS_FRAG_TYPE_LATER);
2473 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2475 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2477 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2478 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2484 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2485 const struct flow *flow, odp_port_t odp_in_port,
2486 size_t max_mpls_depth)
2489 struct ovs_key_ethernet *eth_key;
2492 /* We assume that if 'data' and 'flow' are not the same, we should
2493 * treat 'data' as a mask. */
2494 is_mask = (data != flow);
2496 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2498 if (flow->tunnel.ip_dst || is_mask) {
2499 tun_key_to_attr(buf, &data->tunnel);
2502 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2504 if (flow->recirc_id) {
2505 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2508 if (flow->dp_hash) {
2509 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2512 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2513 * is not the magical value "ODPP_NONE". */
2514 if (is_mask || odp_in_port != ODPP_NONE) {
2515 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2518 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2520 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2521 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2523 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2525 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2527 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2529 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2530 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2531 if (flow->vlan_tci == htons(0)) {
2538 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2539 /* For backwards compatibility with kernels that don't support
2540 * wildcarding, the following convention is used to encode the
2541 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2544 * -------- -------- -------
2545 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2546 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2547 * <none> 0xffff Any non-Ethernet II frame (except valid
2548 * 802.3 SNAP packet with valid eth_type).
2551 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2556 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2558 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2559 struct ovs_key_ipv4 *ipv4_key;
2561 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2563 ipv4_key->ipv4_src = data->nw_src;
2564 ipv4_key->ipv4_dst = data->nw_dst;
2565 ipv4_key->ipv4_proto = data->nw_proto;
2566 ipv4_key->ipv4_tos = data->nw_tos;
2567 ipv4_key->ipv4_ttl = data->nw_ttl;
2568 ipv4_key->ipv4_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2569 : ovs_to_odp_frag(data->nw_frag);
2570 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2571 struct ovs_key_ipv6 *ipv6_key;
2573 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2575 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2576 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2577 ipv6_key->ipv6_label = data->ipv6_label;
2578 ipv6_key->ipv6_proto = data->nw_proto;
2579 ipv6_key->ipv6_tclass = data->nw_tos;
2580 ipv6_key->ipv6_hlimit = data->nw_ttl;
2581 ipv6_key->ipv6_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2582 : ovs_to_odp_frag(data->nw_frag);
2583 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2584 flow->dl_type == htons(ETH_TYPE_RARP)) {
2585 struct ovs_key_arp *arp_key;
2587 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2589 arp_key->arp_sip = data->nw_src;
2590 arp_key->arp_tip = data->nw_dst;
2591 arp_key->arp_op = htons(data->nw_proto);
2592 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2593 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2594 } else if (eth_type_mpls(flow->dl_type)) {
2595 struct ovs_key_mpls *mpls_key;
2598 n = flow_count_mpls_labels(flow, NULL);
2599 n = MIN(n, max_mpls_depth);
2600 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2601 n * sizeof *mpls_key);
2602 for (i = 0; i < n; i++) {
2603 mpls_key[i].mpls_lse = data->mpls_lse[i];
2607 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2608 if (flow->nw_proto == IPPROTO_TCP) {
2609 struct ovs_key_tcp *tcp_key;
2611 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2613 tcp_key->tcp_src = data->tp_src;
2614 tcp_key->tcp_dst = data->tp_dst;
2616 if (data->tcp_flags) {
2617 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2619 } else if (flow->nw_proto == IPPROTO_UDP) {
2620 struct ovs_key_udp *udp_key;
2622 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2624 udp_key->udp_src = data->tp_src;
2625 udp_key->udp_dst = data->tp_dst;
2626 } else if (flow->nw_proto == IPPROTO_SCTP) {
2627 struct ovs_key_sctp *sctp_key;
2629 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2631 sctp_key->sctp_src = data->tp_src;
2632 sctp_key->sctp_dst = data->tp_dst;
2633 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2634 && flow->nw_proto == IPPROTO_ICMP) {
2635 struct ovs_key_icmp *icmp_key;
2637 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2639 icmp_key->icmp_type = ntohs(data->tp_src);
2640 icmp_key->icmp_code = ntohs(data->tp_dst);
2641 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2642 && flow->nw_proto == IPPROTO_ICMPV6) {
2643 struct ovs_key_icmpv6 *icmpv6_key;
2645 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2646 sizeof *icmpv6_key);
2647 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2648 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2650 if (flow->tp_dst == htons(0) &&
2651 (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2652 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) &&
2653 (!is_mask || (data->tp_src == htons(0xffff) &&
2654 data->tp_dst == htons(0xffff)))) {
2656 struct ovs_key_nd *nd_key;
2658 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2660 memcpy(nd_key->nd_target, &data->nd_target,
2661 sizeof nd_key->nd_target);
2662 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2663 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2670 nl_msg_end_nested(buf, encap);
2674 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2675 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2676 * number rather than a datapath port number). Instead, if 'odp_in_port'
2677 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2680 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2681 * capable of being expanded to allow for that much space. */
2683 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2684 odp_port_t odp_in_port)
2686 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port, SIZE_MAX);
2689 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2690 * 'buf'. 'flow' is used as a template to determine how to interpret
2691 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2692 * it doesn't indicate whether the other fields should be interpreted as
2693 * ARP, IPv4, IPv6, etc.
2695 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2696 * capable of being expanded to allow for that much space. */
2698 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2699 const struct flow *flow, uint32_t odp_in_port_mask,
2700 size_t max_mpls_depth)
2702 odp_flow_key_from_flow__(buf, mask, flow, u32_to_odp(odp_in_port_mask),
2706 /* Generate ODP flow key from the given packet metadata */
2708 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2710 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2712 if (md->tunnel.ip_dst) {
2713 tun_key_to_attr(buf, &md->tunnel);
2716 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2718 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2719 * value "ODPP_NONE". */
2720 if (md->in_port.odp_port != ODPP_NONE) {
2721 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2725 /* Generate packet metadata from the given ODP flow key. */
2727 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2728 struct pkt_metadata *md)
2730 const struct nlattr *nla;
2732 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2733 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2734 1u << OVS_KEY_ATTR_IN_PORT;
2736 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2738 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2739 uint16_t type = nl_attr_type(nla);
2740 size_t len = nl_attr_get_size(nla);
2741 int expected_len = odp_flow_key_attr_len(type);
2743 if (len != expected_len && expected_len >= 0) {
2748 case OVS_KEY_ATTR_RECIRC_ID:
2749 md->recirc_id = nl_attr_get_u32(nla);
2750 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
2752 case OVS_KEY_ATTR_DP_HASH:
2753 md->dp_hash = nl_attr_get_u32(nla);
2754 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
2756 case OVS_KEY_ATTR_PRIORITY:
2757 md->skb_priority = nl_attr_get_u32(nla);
2758 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2760 case OVS_KEY_ATTR_SKB_MARK:
2761 md->pkt_mark = nl_attr_get_u32(nla);
2762 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2764 case OVS_KEY_ATTR_TUNNEL: {
2765 enum odp_key_fitness res;
2767 res = odp_tun_key_from_attr(nla, &md->tunnel);
2768 if (res == ODP_FIT_ERROR) {
2769 memset(&md->tunnel, 0, sizeof md->tunnel);
2770 } else if (res == ODP_FIT_PERFECT) {
2771 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2775 case OVS_KEY_ATTR_IN_PORT:
2776 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2777 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2783 if (!wanted_attrs) {
2784 return; /* Have everything. */
2790 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2792 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2793 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2794 key_len / sizeof(uint32_t), 0);
2798 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2799 uint64_t attrs, int out_of_range_attr,
2800 const struct nlattr *key, size_t key_len)
2805 if (VLOG_DROP_DBG(rl)) {
2810 for (i = 0; i < 64; i++) {
2811 if (attrs & (UINT64_C(1) << i)) {
2812 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2814 ds_put_format(&s, " %s",
2815 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2818 if (out_of_range_attr) {
2819 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2822 ds_put_cstr(&s, ": ");
2823 odp_flow_key_format(key, key_len, &s);
2825 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2830 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2832 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2834 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2835 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2839 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2840 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2841 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2842 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2849 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2850 const struct nlattr *attrs[], uint64_t *present_attrsp,
2851 int *out_of_range_attrp)
2853 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2854 const struct nlattr *nla;
2855 uint64_t present_attrs;
2858 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2860 *out_of_range_attrp = 0;
2861 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2862 uint16_t type = nl_attr_type(nla);
2863 size_t len = nl_attr_get_size(nla);
2864 int expected_len = odp_flow_key_attr_len(type);
2866 if (len != expected_len && expected_len >= 0) {
2867 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2869 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2870 "length %d", ovs_key_attr_to_string(type, namebuf,
2876 if (type > OVS_KEY_ATTR_MAX) {
2877 *out_of_range_attrp = type;
2879 if (present_attrs & (UINT64_C(1) << type)) {
2880 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2882 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2883 ovs_key_attr_to_string(type,
2884 namebuf, sizeof namebuf));
2888 present_attrs |= UINT64_C(1) << type;
2893 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2897 *present_attrsp = present_attrs;
2901 static enum odp_key_fitness
2902 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2903 uint64_t expected_attrs,
2904 const struct nlattr *key, size_t key_len)
2906 uint64_t missing_attrs;
2907 uint64_t extra_attrs;
2909 missing_attrs = expected_attrs & ~present_attrs;
2910 if (missing_attrs) {
2911 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2912 log_odp_key_attributes(&rl, "expected but not present",
2913 missing_attrs, 0, key, key_len);
2914 return ODP_FIT_TOO_LITTLE;
2917 extra_attrs = present_attrs & ~expected_attrs;
2918 if (extra_attrs || out_of_range_attr) {
2919 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2920 log_odp_key_attributes(&rl, "present but not expected",
2921 extra_attrs, out_of_range_attr, key, key_len);
2922 return ODP_FIT_TOO_MUCH;
2925 return ODP_FIT_PERFECT;
2929 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2930 uint64_t present_attrs, uint64_t *expected_attrs,
2931 struct flow *flow, const struct flow *src_flow)
2933 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2934 bool is_mask = flow != src_flow;
2936 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2937 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2938 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2939 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2940 ntohs(flow->dl_type));
2943 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2944 flow->dl_type != htons(0xffff)) {
2947 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2950 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2951 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
2952 /* See comments in odp_flow_key_from_flow__(). */
2953 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
2960 static enum odp_key_fitness
2961 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2962 uint64_t present_attrs, int out_of_range_attr,
2963 uint64_t expected_attrs, struct flow *flow,
2964 const struct nlattr *key, size_t key_len,
2965 const struct flow *src_flow)
2967 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2968 bool is_mask = src_flow != flow;
2969 const void *check_start = NULL;
2970 size_t check_len = 0;
2971 enum ovs_key_attr expected_bit = 0xff;
2973 if (eth_type_mpls(src_flow->dl_type)) {
2974 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
2975 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
2976 int n = size / sizeof(ovs_be32);
2979 if (!size || size % sizeof(ovs_be32)) {
2980 return ODP_FIT_ERROR;
2984 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2986 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2987 return ODP_FIT_TOO_LITTLE;
2989 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
2990 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
2991 return ODP_FIT_ERROR;
2993 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2996 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
2997 flow->mpls_lse[i] = mpls_lse[i];
2999 if (n > FLOW_MAX_MPLS_LABELS) {
3000 return ODP_FIT_TOO_MUCH;
3004 /* BOS may be set only in the innermost label. */
3005 for (i = 0; i < n - 1; i++) {
3006 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3007 return ODP_FIT_ERROR;
3011 /* BOS must be set in the innermost label. */
3012 if (n < FLOW_MAX_MPLS_LABELS
3013 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3014 return ODP_FIT_TOO_LITTLE;
3019 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3021 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3023 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3024 const struct ovs_key_ipv4 *ipv4_key;
3026 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3027 flow->nw_src = ipv4_key->ipv4_src;
3028 flow->nw_dst = ipv4_key->ipv4_dst;
3029 flow->nw_proto = ipv4_key->ipv4_proto;
3030 flow->nw_tos = ipv4_key->ipv4_tos;
3031 flow->nw_ttl = ipv4_key->ipv4_ttl;
3033 flow->nw_frag = ipv4_key->ipv4_frag;
3034 check_start = ipv4_key;
3035 check_len = sizeof *ipv4_key;
3036 expected_bit = OVS_KEY_ATTR_IPV4;
3037 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3038 return ODP_FIT_ERROR;
3041 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3043 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3045 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3046 const struct ovs_key_ipv6 *ipv6_key;
3048 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3049 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3050 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3051 flow->ipv6_label = ipv6_key->ipv6_label;
3052 flow->nw_proto = ipv6_key->ipv6_proto;
3053 flow->nw_tos = ipv6_key->ipv6_tclass;
3054 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3056 flow->nw_frag = ipv6_key->ipv6_frag;
3057 check_start = ipv6_key;
3058 check_len = sizeof *ipv6_key;
3059 expected_bit = OVS_KEY_ATTR_IPV6;
3060 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3061 return ODP_FIT_ERROR;
3064 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3065 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3067 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3069 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3070 const struct ovs_key_arp *arp_key;
3072 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3073 flow->nw_src = arp_key->arp_sip;
3074 flow->nw_dst = arp_key->arp_tip;
3075 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3076 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3077 "key", ntohs(arp_key->arp_op));
3078 return ODP_FIT_ERROR;
3080 flow->nw_proto = ntohs(arp_key->arp_op);
3081 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3082 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3085 check_start = arp_key;
3086 check_len = sizeof *arp_key;
3087 expected_bit = OVS_KEY_ATTR_ARP;
3093 if (check_len > 0) { /* Happens only when 'is_mask'. */
3094 if (!is_all_zeros(check_start, check_len) &&
3095 flow->dl_type != htons(0xffff)) {
3096 return ODP_FIT_ERROR;
3098 expected_attrs |= UINT64_C(1) << expected_bit;
3102 expected_bit = OVS_KEY_ATTR_UNSPEC;
3103 if (src_flow->nw_proto == IPPROTO_TCP
3104 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3105 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3106 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3108 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3110 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3111 const struct ovs_key_tcp *tcp_key;
3113 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3114 flow->tp_src = tcp_key->tcp_src;
3115 flow->tp_dst = tcp_key->tcp_dst;
3116 expected_bit = OVS_KEY_ATTR_TCP;
3118 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3119 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3120 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3122 } else if (src_flow->nw_proto == IPPROTO_UDP
3123 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3124 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3125 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3127 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3129 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3130 const struct ovs_key_udp *udp_key;
3132 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3133 flow->tp_src = udp_key->udp_src;
3134 flow->tp_dst = udp_key->udp_dst;
3135 expected_bit = OVS_KEY_ATTR_UDP;
3137 } else if (src_flow->nw_proto == IPPROTO_SCTP
3138 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3139 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3140 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3142 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3144 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3145 const struct ovs_key_sctp *sctp_key;
3147 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3148 flow->tp_src = sctp_key->sctp_src;
3149 flow->tp_dst = sctp_key->sctp_dst;
3150 expected_bit = OVS_KEY_ATTR_SCTP;
3152 } else if (src_flow->nw_proto == IPPROTO_ICMP
3153 && src_flow->dl_type == htons(ETH_TYPE_IP)
3154 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3156 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3158 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3159 const struct ovs_key_icmp *icmp_key;
3161 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3162 flow->tp_src = htons(icmp_key->icmp_type);
3163 flow->tp_dst = htons(icmp_key->icmp_code);
3164 expected_bit = OVS_KEY_ATTR_ICMP;
3166 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3167 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3168 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3170 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3172 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3173 const struct ovs_key_icmpv6 *icmpv6_key;
3175 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3176 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3177 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3178 expected_bit = OVS_KEY_ATTR_ICMPV6;
3179 if (src_flow->tp_dst == htons(0) &&
3180 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3181 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3183 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3185 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3186 const struct ovs_key_nd *nd_key;
3188 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3189 memcpy(&flow->nd_target, nd_key->nd_target,
3190 sizeof flow->nd_target);
3191 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3192 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3194 if (!is_all_zeros((const uint8_t *) nd_key,
3196 (flow->tp_src != htons(0xffff) ||
3197 flow->tp_dst != htons(0xffff))) {
3198 return ODP_FIT_ERROR;
3200 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3207 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3208 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3209 return ODP_FIT_ERROR;
3211 expected_attrs |= UINT64_C(1) << expected_bit;
3216 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3220 /* Parse 802.1Q header then encapsulated L3 attributes. */
3221 static enum odp_key_fitness
3222 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3223 uint64_t present_attrs, int out_of_range_attr,
3224 uint64_t expected_attrs, struct flow *flow,
3225 const struct nlattr *key, size_t key_len,
3226 const struct flow *src_flow)
3228 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3229 bool is_mask = src_flow != flow;
3231 const struct nlattr *encap
3232 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3233 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3234 enum odp_key_fitness encap_fitness;
3235 enum odp_key_fitness fitness;
3237 /* Calculate fitness of outer attributes. */
3239 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3240 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3242 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3243 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3245 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3246 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3249 fitness = check_expectations(present_attrs, out_of_range_attr,
3250 expected_attrs, key, key_len);
3253 * Remove the TPID from dl_type since it's not the real Ethertype. */
3254 flow->dl_type = htons(0);
3255 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3256 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3259 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3260 return ODP_FIT_TOO_LITTLE;
3261 } else if (flow->vlan_tci == htons(0)) {
3262 /* Corner case for a truncated 802.1Q header. */
3263 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3264 return ODP_FIT_TOO_MUCH;
3267 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3268 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3269 "but CFI bit is not set", ntohs(flow->vlan_tci));
3270 return ODP_FIT_ERROR;
3273 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3278 /* Now parse the encapsulated attributes. */
3279 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3280 attrs, &present_attrs, &out_of_range_attr)) {
3281 return ODP_FIT_ERROR;
3285 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3286 return ODP_FIT_ERROR;
3288 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3289 expected_attrs, flow, key, key_len,
3292 /* The overall fitness is the worse of the outer and inner attributes. */
3293 return MAX(fitness, encap_fitness);
3296 static enum odp_key_fitness
3297 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3298 struct flow *flow, const struct flow *src_flow)
3300 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3301 uint64_t expected_attrs;
3302 uint64_t present_attrs;
3303 int out_of_range_attr;
3304 bool is_mask = src_flow != flow;
3306 memset(flow, 0, sizeof *flow);
3308 /* Parse attributes. */
3309 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3310 &out_of_range_attr)) {
3311 return ODP_FIT_ERROR;
3316 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3317 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3318 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3319 } else if (is_mask) {
3320 /* Always exact match recirc_id when datapath does not sepcify it. */
3321 flow->recirc_id = UINT32_MAX;
3324 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3325 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3326 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3328 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3329 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3330 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3333 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3334 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3335 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3338 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3339 enum odp_key_fitness res;
3341 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3342 if (res == ODP_FIT_ERROR) {
3343 return ODP_FIT_ERROR;
3344 } else if (res == ODP_FIT_PERFECT) {
3345 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3349 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3350 flow->in_port.odp_port
3351 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3352 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3353 } else if (!is_mask) {
3354 flow->in_port.odp_port = ODPP_NONE;
3357 /* Ethernet header. */
3358 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3359 const struct ovs_key_ethernet *eth_key;
3361 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3362 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3363 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3365 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3369 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3372 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3373 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3375 return ODP_FIT_ERROR;
3379 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3380 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3381 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3382 expected_attrs, flow, key, key_len, src_flow);
3385 flow->vlan_tci = htons(0xffff);
3386 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3387 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3388 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3391 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3392 expected_attrs, flow, key, key_len, src_flow);
3395 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3396 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3397 * 'key' fits our expectations for what a flow key should contain.
3399 * The 'in_port' will be the datapath's understanding of the port. The
3400 * caller will need to translate with odp_port_to_ofp_port() if the
3401 * OpenFlow port is needed.
3403 * This function doesn't take the packet itself as an argument because none of
3404 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3405 * it is always possible to infer which additional attribute(s) should appear
3406 * by looking at the attributes for lower-level protocols, e.g. if the network
3407 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3408 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3409 * must be absent. */
3410 enum odp_key_fitness
3411 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3414 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3417 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3418 * structure in 'mask'. 'flow' must be a previously translated flow
3419 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3420 * 'key' fits our expectations for what a flow key should contain. */
3421 enum odp_key_fitness
3422 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3423 struct flow *mask, const struct flow *flow)
3425 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3428 /* Returns 'fitness' as a string, for use in debug messages. */
3430 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3433 case ODP_FIT_PERFECT:
3435 case ODP_FIT_TOO_MUCH:
3437 case ODP_FIT_TOO_LITTLE:
3438 return "too_little";
3446 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3447 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3448 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3449 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3450 * null, then the return value is not meaningful.) */
3452 odp_put_userspace_action(uint32_t pid,
3453 const void *userdata, size_t userdata_size,
3454 struct ofpbuf *odp_actions)
3456 size_t userdata_ofs;
3459 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3460 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3462 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3464 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3465 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3468 * - The kernel rejected shorter userdata with -ERANGE.
3470 * - The kernel silently dropped userdata beyond the first 8 bytes.
3472 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3473 * separately disable features that required more than 8 bytes.) */
3474 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3475 MAX(8, userdata_size)),
3476 userdata, userdata_size);
3480 nl_msg_end_nested(odp_actions, offset);
3482 return userdata_ofs;
3486 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3487 struct ofpbuf *odp_actions)
3489 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3490 tun_key_to_attr(odp_actions, tunnel);
3491 nl_msg_end_nested(odp_actions, offset);
3494 /* The commit_odp_actions() function and its helpers. */
3497 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3498 const void *key, size_t key_size)
3500 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3501 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3502 nl_msg_end_nested(odp_actions, offset);
3506 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3507 struct ofpbuf *odp_actions)
3509 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3513 /* If any of the flow key data that ODP actions can modify are different in
3514 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3515 * 'odp_actions' that change the flow tunneling information in key from
3516 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3517 * same way. In other words, operates the same as commit_odp_actions(), but
3518 * only on tunneling information. */
3520 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3521 struct ofpbuf *odp_actions)
3523 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3524 if (flow->tunnel.ip_dst) {
3525 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3528 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3529 odp_put_tunnel_action(&base->tunnel, odp_actions);
3534 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3535 struct ofpbuf *odp_actions,
3536 struct flow_wildcards *wc)
3538 struct ovs_key_ethernet eth_key;
3540 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3541 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3545 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3546 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3548 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3549 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3551 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3552 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3554 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3555 ð_key, sizeof(eth_key));
3559 pop_vlan(struct flow *base,
3560 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3562 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3564 if (base->vlan_tci & htons(VLAN_CFI)) {
3565 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3571 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3572 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3574 if (base->vlan_tci == vlan_tci) {
3578 pop_vlan(base, odp_actions, wc);
3579 if (vlan_tci & htons(VLAN_CFI)) {
3580 struct ovs_action_push_vlan vlan;
3582 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3583 vlan.vlan_tci = vlan_tci;
3584 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3585 &vlan, sizeof vlan);
3587 base->vlan_tci = vlan_tci;
3591 commit_mpls_action(const struct flow *flow, struct flow *base,
3592 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3594 int base_n = flow_count_mpls_labels(base, wc);
3595 int flow_n = flow_count_mpls_labels(flow, wc);
3596 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3599 while (base_n > common_n) {
3600 if (base_n - 1 == common_n && flow_n > common_n) {
3601 /* If there is only one more LSE in base than there are common
3602 * between base and flow; and flow has at least one more LSE than
3603 * is common then the topmost LSE of base may be updated using
3605 struct ovs_key_mpls mpls_key;
3607 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3608 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3609 &mpls_key, sizeof mpls_key);
3610 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3613 /* Otherwise, if there more LSEs in base than are common between
3614 * base and flow then pop the topmost one. */
3618 /* If all the LSEs are to be popped and this is not the outermost
3619 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3620 * POP_MPLS action instead of flow->dl_type.
3622 * This is because the POP_MPLS action requires its ethertype
3623 * argument to be an MPLS ethernet type but in this case
3624 * flow->dl_type will be a non-MPLS ethernet type.
3626 * When the final POP_MPLS action occurs it use flow->dl_type and
3627 * the and the resulting packet will have the desired dl_type. */
3628 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3629 dl_type = htons(ETH_TYPE_MPLS);
3631 dl_type = flow->dl_type;
3633 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3634 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3640 /* If, after the above popping and setting, there are more LSEs in flow
3641 * than base then some LSEs need to be pushed. */
3642 while (base_n < flow_n) {
3643 struct ovs_action_push_mpls *mpls;
3645 mpls = nl_msg_put_unspec_zero(odp_actions,
3646 OVS_ACTION_ATTR_PUSH_MPLS,
3648 mpls->mpls_ethertype = flow->dl_type;
3649 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3650 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3651 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3657 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3658 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3660 struct ovs_key_ipv4 ipv4_key;
3662 if (base->nw_src == flow->nw_src &&
3663 base->nw_dst == flow->nw_dst &&
3664 base->nw_tos == flow->nw_tos &&
3665 base->nw_ttl == flow->nw_ttl &&
3666 base->nw_frag == flow->nw_frag) {
3670 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3671 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3672 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3673 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3674 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3675 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3677 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3678 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3679 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3680 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3681 ipv4_key.ipv4_proto = base->nw_proto;
3682 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3684 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3685 &ipv4_key, sizeof(ipv4_key));
3689 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3690 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3692 struct ovs_key_ipv6 ipv6_key;
3694 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3695 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3696 base->ipv6_label == flow->ipv6_label &&
3697 base->nw_tos == flow->nw_tos &&
3698 base->nw_ttl == flow->nw_ttl &&
3699 base->nw_frag == flow->nw_frag) {
3703 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3704 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3705 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3706 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3707 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3708 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3709 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3711 base->ipv6_src = flow->ipv6_src;
3712 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3713 base->ipv6_dst = flow->ipv6_dst;
3714 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3716 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3717 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3718 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3719 ipv6_key.ipv6_proto = base->nw_proto;
3720 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3722 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3723 &ipv6_key, sizeof(ipv6_key));
3726 static enum slow_path_reason
3727 commit_set_arp_action(const struct flow *flow, struct flow *base,
3728 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3730 struct ovs_key_arp arp_key;
3732 if (base->nw_src == flow->nw_src &&
3733 base->nw_dst == flow->nw_dst &&
3734 base->nw_proto == flow->nw_proto &&
3735 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3736 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3740 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3741 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3742 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3743 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3744 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3746 base->nw_src = flow->nw_src;
3747 base->nw_dst = flow->nw_dst;
3748 base->nw_proto = flow->nw_proto;
3749 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3750 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3752 arp_key.arp_sip = base->nw_src;
3753 arp_key.arp_tip = base->nw_dst;
3754 arp_key.arp_op = htons(base->nw_proto);
3755 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3756 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3758 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3763 static enum slow_path_reason
3764 commit_set_nw_action(const struct flow *flow, struct flow *base,
3765 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3767 /* Check if 'flow' really has an L3 header. */
3768 if (!flow->nw_proto) {
3772 switch (ntohs(base->dl_type)) {
3774 commit_set_ipv4_action(flow, base, odp_actions, wc);
3778 commit_set_ipv6_action(flow, base, odp_actions, wc);
3782 return commit_set_arp_action(flow, base, odp_actions, wc);
3789 commit_set_port_action(const struct flow *flow, struct flow *base,
3790 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3792 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3796 if (base->tp_src == flow->tp_src &&
3797 base->tp_dst == flow->tp_dst) {
3801 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3802 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3804 if (flow->nw_proto == IPPROTO_TCP) {
3805 struct ovs_key_tcp port_key;
3807 port_key.tcp_src = base->tp_src = flow->tp_src;
3808 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3810 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3811 &port_key, sizeof(port_key));
3813 } else if (flow->nw_proto == IPPROTO_UDP) {
3814 struct ovs_key_udp port_key;
3816 port_key.udp_src = base->tp_src = flow->tp_src;
3817 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3819 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3820 &port_key, sizeof(port_key));
3821 } else if (flow->nw_proto == IPPROTO_SCTP) {
3822 struct ovs_key_sctp port_key;
3824 port_key.sctp_src = base->tp_src = flow->tp_src;
3825 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3827 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3828 &port_key, sizeof(port_key));
3833 commit_set_priority_action(const struct flow *flow, struct flow *base,
3834 struct ofpbuf *odp_actions,
3835 struct flow_wildcards *wc)
3837 if (base->skb_priority == flow->skb_priority) {
3841 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3842 base->skb_priority = flow->skb_priority;
3844 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3845 &base->skb_priority, sizeof(base->skb_priority));
3849 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3850 struct ofpbuf *odp_actions,
3851 struct flow_wildcards *wc)
3853 if (base->pkt_mark == flow->pkt_mark) {
3857 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3858 base->pkt_mark = flow->pkt_mark;
3860 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3863 /* If any of the flow key data that ODP actions can modify are different in
3864 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3865 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3866 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3867 * in addition to this function if needed. Sets fields in 'wc' that are
3868 * used as part of the action.
3870 * Returns a reason to force processing the flow's packets into the userspace
3871 * slow path, if there is one, otherwise 0. */
3872 enum slow_path_reason
3873 commit_odp_actions(const struct flow *flow, struct flow *base,
3874 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3876 enum slow_path_reason slow;
3878 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3879 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3880 commit_set_port_action(flow, base, odp_actions, wc);
3881 commit_mpls_action(flow, base, odp_actions, wc);
3882 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3883 commit_set_priority_action(flow, base, odp_actions, wc);
3884 commit_set_pkt_mark_action(flow, base, odp_actions, wc);