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_SET_MASKED: return -2;
86 case OVS_ACTION_ATTR_SAMPLE: return -2;
88 case OVS_ACTION_ATTR_UNSPEC:
89 case __OVS_ACTION_ATTR_MAX:
96 /* Returns a string form of 'attr'. The return value is either a statically
97 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
98 * should be at least OVS_KEY_ATTR_BUFSIZE. */
99 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
101 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
104 case OVS_KEY_ATTR_UNSPEC: return "unspec";
105 case OVS_KEY_ATTR_ENCAP: return "encap";
106 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
107 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
108 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
109 case OVS_KEY_ATTR_IN_PORT: return "in_port";
110 case OVS_KEY_ATTR_ETHERNET: return "eth";
111 case OVS_KEY_ATTR_VLAN: return "vlan";
112 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
113 case OVS_KEY_ATTR_IPV4: return "ipv4";
114 case OVS_KEY_ATTR_IPV6: return "ipv6";
115 case OVS_KEY_ATTR_TCP: return "tcp";
116 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
117 case OVS_KEY_ATTR_UDP: return "udp";
118 case OVS_KEY_ATTR_SCTP: return "sctp";
119 case OVS_KEY_ATTR_ICMP: return "icmp";
120 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
121 case OVS_KEY_ATTR_ARP: return "arp";
122 case OVS_KEY_ATTR_ND: return "nd";
123 case OVS_KEY_ATTR_MPLS: return "mpls";
124 case OVS_KEY_ATTR_DP_HASH: return "dp_hash";
125 case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id";
127 case __OVS_KEY_ATTR_MAX:
129 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
135 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
137 size_t len = nl_attr_get_size(a);
139 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
141 const uint8_t *unspec;
144 unspec = nl_attr_get(a);
145 for (i = 0; i < len; i++) {
146 ds_put_char(ds, i ? ' ': '(');
147 ds_put_format(ds, "%02x", unspec[i]);
149 ds_put_char(ds, ')');
154 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
156 static const struct nl_policy ovs_sample_policy[] = {
157 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
158 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
160 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
162 const struct nlattr *nla_acts;
165 ds_put_cstr(ds, "sample");
167 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
168 ds_put_cstr(ds, "(error)");
172 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
175 ds_put_format(ds, "(sample=%.1f%%,", percentage);
177 ds_put_cstr(ds, "actions(");
178 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
179 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
180 format_odp_actions(ds, nla_acts, len);
181 ds_put_format(ds, "))");
185 slow_path_reason_to_string(uint32_t reason)
187 switch ((enum slow_path_reason) reason) {
188 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
197 slow_path_reason_to_explanation(enum slow_path_reason reason)
200 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
209 parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
210 uint32_t *res_flags, uint32_t allowed, uint32_t *res_mask)
215 /* Parse masked flags in numeric format? */
216 if (res_mask && ovs_scan(s, "%"SCNi32"/%"SCNi32")%n",
217 res_flags, res_mask, &n) && n > 0) {
218 if (*res_flags & ~allowed || *res_mask & ~allowed) {
229 if (res_mask && (s[n] == '+' || s[n] == '-')) {
230 uint32_t flags = 0, mask = 0;
232 /* Parse masked flags. */
233 while (s[n] != ')') {
240 } else if (s[n] == '-') {
247 name_len = strcspn(s + n, "+-)");
249 for (bit = 1; bit; bit <<= 1) {
250 const char *fname = bit_to_string(bit);
258 if (len != name_len) {
261 if (!strncmp(s + n, fname, len)) {
263 /* bit already set. */
266 if (!(bit & allowed)) {
278 return -EINVAL; /* Unknown flag name */
289 /* Parse unmasked flags. If a flag is present, it is set, otherwise
291 while (s[n] != ')') {
292 unsigned long long int flags;
296 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
297 if (flags & ~allowed) {
300 n += n0 + (s[n + n0] == ',');
305 for (bit = 1; bit; bit <<= 1) {
306 const char *name = bit_to_string(bit);
314 if (!strncmp(s + n, name, len) &&
315 (s[n + len] == ',' || s[n + len] == ')')) {
316 if (!(bit & allowed)) {
320 n += len + (s[n + len] == ',');
333 *res_mask = UINT32_MAX;
339 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
341 static const struct nl_policy ovs_userspace_policy[] = {
342 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
343 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
345 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
348 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
349 const struct nlattr *userdata_attr;
350 const struct nlattr *tunnel_out_port_attr;
352 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
353 ds_put_cstr(ds, "userspace(error)");
357 ds_put_format(ds, "userspace(pid=%"PRIu32,
358 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
360 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
363 const uint8_t *userdata = nl_attr_get(userdata_attr);
364 size_t userdata_len = nl_attr_get_size(userdata_attr);
365 bool userdata_unspec = true;
366 union user_action_cookie cookie;
368 if (userdata_len >= sizeof cookie.type
369 && userdata_len <= sizeof cookie) {
371 memset(&cookie, 0, sizeof cookie);
372 memcpy(&cookie, userdata, userdata_len);
374 userdata_unspec = false;
376 if (userdata_len == sizeof cookie.sflow
377 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
378 ds_put_format(ds, ",sFlow("
379 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
380 vlan_tci_to_vid(cookie.sflow.vlan_tci),
381 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
382 cookie.sflow.output);
383 } else if (userdata_len == sizeof cookie.slow_path
384 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
385 ds_put_cstr(ds, ",slow_path(");
386 format_flags(ds, slow_path_reason_to_string,
387 cookie.slow_path.reason, ',');
388 ds_put_format(ds, ")");
389 } else if (userdata_len == sizeof cookie.flow_sample
390 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
391 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
392 ",collector_set_id=%"PRIu32
393 ",obs_domain_id=%"PRIu32
394 ",obs_point_id=%"PRIu32")",
395 cookie.flow_sample.probability,
396 cookie.flow_sample.collector_set_id,
397 cookie.flow_sample.obs_domain_id,
398 cookie.flow_sample.obs_point_id);
399 } else if (userdata_len >= sizeof cookie.ipfix
400 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
401 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
402 cookie.ipfix.output_odp_port);
404 userdata_unspec = true;
408 if (userdata_unspec) {
410 ds_put_format(ds, ",userdata(");
411 for (i = 0; i < userdata_len; i++) {
412 ds_put_format(ds, "%02x", userdata[i]);
414 ds_put_char(ds, ')');
418 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
419 if (tunnel_out_port_attr) {
420 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
421 nl_attr_get_u32(tunnel_out_port_attr));
424 ds_put_char(ds, ')');
428 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
430 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
431 vlan_tci_to_vid(vlan_tci),
432 vlan_tci_to_pcp(vlan_tci));
433 if (!(vlan_tci & htons(VLAN_CFI))) {
434 ds_put_cstr(ds, ",cfi=0");
439 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
441 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
442 mpls_lse_to_label(mpls_lse),
443 mpls_lse_to_tc(mpls_lse),
444 mpls_lse_to_ttl(mpls_lse),
445 mpls_lse_to_bos(mpls_lse));
449 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
450 const struct ovs_key_mpls *mpls_mask, int n)
453 ovs_be32 key = mpls_key->mpls_lse;
455 if (mpls_mask == NULL) {
456 format_mpls_lse(ds, key);
458 ovs_be32 mask = mpls_mask->mpls_lse;
460 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
461 mpls_lse_to_label(key), mpls_lse_to_label(mask),
462 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
463 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
464 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
469 for (i = 0; i < n; i++) {
470 ds_put_format(ds, "lse%d=%#"PRIx32,
471 i, ntohl(mpls_key[i].mpls_lse));
473 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
475 ds_put_char(ds, ',');
482 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
484 ds_put_format(ds, "recirc(%"PRIu32")", recirc_id);
488 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
490 ds_put_format(ds, "hash(");
492 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
493 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
495 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
498 ds_put_format(ds, ")");
502 format_odp_action(struct ds *ds, const struct nlattr *a)
505 enum ovs_action_attr type = nl_attr_type(a);
506 const struct ovs_action_push_vlan *vlan;
509 expected_len = odp_action_len(nl_attr_type(a));
510 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
511 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
512 nl_attr_get_size(a), expected_len);
513 format_generic_odp_action(ds, a);
518 case OVS_ACTION_ATTR_OUTPUT:
519 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
521 case OVS_ACTION_ATTR_USERSPACE:
522 format_odp_userspace_action(ds, a);
524 case OVS_ACTION_ATTR_RECIRC:
525 format_odp_recirc_action(ds, nl_attr_get_u32(a));
527 case OVS_ACTION_ATTR_HASH:
528 format_odp_hash_action(ds, nl_attr_get(a));
530 case OVS_ACTION_ATTR_SET_MASKED:
532 size = nl_attr_get_size(a) / 2;
533 ds_put_cstr(ds, "set(");
535 /* Masked set action not supported for tunnel key, which is bigger. */
536 if (size <= sizeof(struct ovs_key_ipv6)) {
537 struct nlattr attr[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
538 sizeof(struct nlattr))];
539 struct nlattr mask[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
540 sizeof(struct nlattr))];
542 mask->nla_type = attr->nla_type = nl_attr_type(a);
543 mask->nla_len = attr->nla_len = NLA_HDRLEN + size;
544 memcpy(attr + 1, (char *)(a + 1), size);
545 memcpy(mask + 1, (char *)(a + 1) + size, size);
546 format_odp_key_attr(attr, mask, NULL, ds, true);
548 format_odp_key_attr(a, NULL, NULL, ds, true);
550 ds_put_cstr(ds, ")");
552 case OVS_ACTION_ATTR_SET:
553 ds_put_cstr(ds, "set(");
554 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
555 ds_put_cstr(ds, ")");
557 case OVS_ACTION_ATTR_PUSH_VLAN:
558 vlan = nl_attr_get(a);
559 ds_put_cstr(ds, "push_vlan(");
560 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
561 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
563 format_vlan_tci(ds, vlan->vlan_tci);
564 ds_put_char(ds, ')');
566 case OVS_ACTION_ATTR_POP_VLAN:
567 ds_put_cstr(ds, "pop_vlan");
569 case OVS_ACTION_ATTR_PUSH_MPLS: {
570 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
571 ds_put_cstr(ds, "push_mpls(");
572 format_mpls_lse(ds, mpls->mpls_lse);
573 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
576 case OVS_ACTION_ATTR_POP_MPLS: {
577 ovs_be16 ethertype = nl_attr_get_be16(a);
578 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
581 case OVS_ACTION_ATTR_SAMPLE:
582 format_odp_sample_action(ds, a);
584 case OVS_ACTION_ATTR_UNSPEC:
585 case __OVS_ACTION_ATTR_MAX:
587 format_generic_odp_action(ds, a);
593 format_odp_actions(struct ds *ds, const struct nlattr *actions,
597 const struct nlattr *a;
600 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
602 ds_put_char(ds, ',');
604 format_odp_action(ds, a);
609 if (left == actions_len) {
610 ds_put_cstr(ds, "<empty>");
612 ds_put_format(ds, ",***%u leftover bytes*** (", left);
613 for (i = 0; i < left; i++) {
614 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
616 ds_put_char(ds, ')');
619 ds_put_cstr(ds, "drop");
623 /* Separate out parse_odp_userspace_action() function. */
625 parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
628 union user_action_cookie cookie;
630 odp_port_t tunnel_out_port;
632 void *user_data = NULL;
633 size_t user_data_size = 0;
635 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
641 uint32_t probability;
642 uint32_t collector_set_id;
643 uint32_t obs_domain_id;
644 uint32_t obs_point_id;
647 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
648 "pcp=%i,output=%"SCNi32")%n",
649 &vid, &pcp, &output, &n1)) {
653 tci = vid | (pcp << VLAN_PCP_SHIFT);
658 cookie.type = USER_ACTION_COOKIE_SFLOW;
659 cookie.sflow.vlan_tci = htons(tci);
660 cookie.sflow.output = output;
662 user_data_size = sizeof cookie.sflow;
663 } else if (ovs_scan(&s[n], ",slow_path%n",
668 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
669 cookie.slow_path.unused = 0;
670 cookie.slow_path.reason = 0;
672 res = parse_flags(&s[n], slow_path_reason_to_string,
673 &cookie.slow_path.reason,
674 SLOW_PATH_REASON_MASK, NULL);
681 user_data_size = sizeof cookie.slow_path;
682 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
683 "collector_set_id=%"SCNi32","
684 "obs_domain_id=%"SCNi32","
685 "obs_point_id=%"SCNi32")%n",
686 &probability, &collector_set_id,
687 &obs_domain_id, &obs_point_id, &n1)) {
690 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
691 cookie.flow_sample.probability = probability;
692 cookie.flow_sample.collector_set_id = collector_set_id;
693 cookie.flow_sample.obs_domain_id = obs_domain_id;
694 cookie.flow_sample.obs_point_id = obs_point_id;
696 user_data_size = sizeof cookie.flow_sample;
697 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
700 cookie.type = USER_ACTION_COOKIE_IPFIX;
701 cookie.ipfix.output_odp_port = u32_to_odp(output);
703 user_data_size = sizeof cookie.ipfix;
704 } else if (ovs_scan(&s[n], ",userdata(%n",
709 ofpbuf_init(&buf, 16);
710 end = ofpbuf_put_hex(&buf, &s[n], NULL);
714 user_data = ofpbuf_data(&buf);
715 user_data_size = ofpbuf_size(&buf);
722 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
723 &tunnel_out_port, &n1)) {
724 odp_put_userspace_action(pid, user_data, user_data_size, tunnel_out_port, actions);
726 } else if (s[n] == ')') {
727 odp_put_userspace_action(pid, user_data, user_data_size, ODPP_NONE, actions);
736 parse_odp_action(const char *s, const struct simap *port_names,
737 struct ofpbuf *actions)
743 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
744 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
750 int len = strcspn(s, delimiters);
751 struct simap_node *node;
753 node = simap_find_len(port_names, s, len);
755 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
760 if (!strncmp(s, "userspace(", 10)) {
761 return parse_odp_userspace_action(s, actions);
764 if (!strncmp(s, "set(", 4)) {
767 struct nlattr mask[128 / sizeof(struct nlattr)];
768 struct ofpbuf maskbuf;
769 struct nlattr *nested, *key;
772 /* 'mask' is big enough to hold any key. */
773 ofpbuf_use_stack(&maskbuf, mask, sizeof mask);
775 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
776 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, &maskbuf);
780 if (s[retval + 4] != ')') {
784 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
787 size = nl_attr_get_size(mask);
788 if (size == nl_attr_get_size(key)) {
789 /* Change to masked set action if not fully masked. */
790 if (!is_all_ones(mask + 1, size)) {
791 key->nla_len += size;
792 ofpbuf_put(actions, mask + 1, size);
793 /* 'actions' may have been reallocated by ofpbuf_put(). */
794 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
795 nested->nla_type = OVS_ACTION_ATTR_SET_MASKED;
799 nl_msg_end_nested(actions, start_ofs);
804 struct ovs_action_push_vlan push;
805 int tpid = ETH_TYPE_VLAN;
810 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
811 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
812 &vid, &pcp, &cfi, &n)
813 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
814 &tpid, &vid, &pcp, &n)
815 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
816 &tpid, &vid, &pcp, &cfi, &n)) {
817 push.vlan_tpid = htons(tpid);
818 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
819 | (pcp << VLAN_PCP_SHIFT)
820 | (cfi ? VLAN_CFI : 0));
821 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
828 if (!strncmp(s, "pop_vlan", 8)) {
829 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
837 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
838 && percentage >= 0. && percentage <= 100.0) {
839 size_t sample_ofs, actions_ofs;
842 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
843 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
844 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
845 (probability <= 0 ? 0
846 : probability >= UINT32_MAX ? UINT32_MAX
849 actions_ofs = nl_msg_start_nested(actions,
850 OVS_SAMPLE_ATTR_ACTIONS);
854 n += strspn(s + n, delimiters);
859 retval = parse_odp_action(s + n, port_names, actions);
865 nl_msg_end_nested(actions, actions_ofs);
866 nl_msg_end_nested(actions, sample_ofs);
868 return s[n + 1] == ')' ? n + 2 : -EINVAL;
875 /* Parses the string representation of datapath actions, in the format output
876 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
877 * value. On success, the ODP actions are appended to 'actions' as a series of
878 * Netlink attributes. On failure, no data is appended to 'actions'. Either
879 * way, 'actions''s data might be reallocated. */
881 odp_actions_from_string(const char *s, const struct simap *port_names,
882 struct ofpbuf *actions)
886 if (!strcasecmp(s, "drop")) {
890 old_size = ofpbuf_size(actions);
894 s += strspn(s, delimiters);
899 retval = parse_odp_action(s, port_names, actions);
900 if (retval < 0 || !strchr(delimiters, s[retval])) {
901 ofpbuf_set_size(actions, old_size);
910 /* Returns the correct length of the payload for a flow key attribute of the
911 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
912 * is variable length. */
914 odp_flow_key_attr_len(uint16_t type)
916 if (type > OVS_KEY_ATTR_MAX) {
920 switch ((enum ovs_key_attr) type) {
921 case OVS_KEY_ATTR_ENCAP: return -2;
922 case OVS_KEY_ATTR_PRIORITY: return 4;
923 case OVS_KEY_ATTR_SKB_MARK: return 4;
924 case OVS_KEY_ATTR_DP_HASH: return 4;
925 case OVS_KEY_ATTR_RECIRC_ID: return 4;
926 case OVS_KEY_ATTR_TUNNEL: return -2;
927 case OVS_KEY_ATTR_IN_PORT: return 4;
928 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
929 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
930 case OVS_KEY_ATTR_ETHERTYPE: return 2;
931 case OVS_KEY_ATTR_MPLS: return -2;
932 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
933 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
934 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
935 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
936 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
937 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
938 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
939 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
940 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
941 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
943 case OVS_KEY_ATTR_UNSPEC:
944 case __OVS_KEY_ATTR_MAX:
952 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
954 size_t len = nl_attr_get_size(a);
956 const uint8_t *unspec;
959 unspec = nl_attr_get(a);
960 for (i = 0; i < len; i++) {
962 ds_put_char(ds, ' ');
964 ds_put_format(ds, "%02x", unspec[i]);
970 ovs_frag_type_to_string(enum ovs_frag_type type)
973 case OVS_FRAG_TYPE_NONE:
975 case OVS_FRAG_TYPE_FIRST:
977 case OVS_FRAG_TYPE_LATER:
979 case __OVS_FRAG_TYPE_MAX:
986 tunnel_key_attr_len(int type)
989 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
990 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
991 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
992 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
993 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
994 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
995 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
996 case OVS_TUNNEL_KEY_ATTR_TP_SRC: return 2;
997 case OVS_TUNNEL_KEY_ATTR_TP_DST: return 2;
998 case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
999 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
1000 case __OVS_TUNNEL_KEY_ATTR_MAX:
1006 #define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
1008 parse_geneve_opts(const struct nlattr *attr)
1010 int opts_len = nl_attr_get_size(attr);
1011 const struct geneve_opt *opt = nl_attr_get(attr);
1013 while (opts_len > 0) {
1016 if (opts_len < sizeof(*opt)) {
1020 len = sizeof(*opt) + opt->length * 4;
1021 if (len > opts_len) {
1025 switch (GENEVE_OPT(opt->opt_class, opt->type)) {
1027 if (opt->type & GENEVE_CRIT_OPT_TYPE) {
1032 opt = opt + len / sizeof(*opt);
1039 enum odp_key_fitness
1040 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
1043 const struct nlattr *a;
1045 bool unknown = false;
1047 NL_NESTED_FOR_EACH(a, left, attr) {
1048 uint16_t type = nl_attr_type(a);
1049 size_t len = nl_attr_get_size(a);
1050 int expected_len = tunnel_key_attr_len(type);
1052 if (len != expected_len && expected_len >= 0) {
1053 return ODP_FIT_ERROR;
1057 case OVS_TUNNEL_KEY_ATTR_ID:
1058 tun->tun_id = nl_attr_get_be64(a);
1059 tun->flags |= FLOW_TNL_F_KEY;
1061 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
1062 tun->ip_src = nl_attr_get_be32(a);
1064 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
1065 tun->ip_dst = nl_attr_get_be32(a);
1067 case OVS_TUNNEL_KEY_ATTR_TOS:
1068 tun->ip_tos = nl_attr_get_u8(a);
1070 case OVS_TUNNEL_KEY_ATTR_TTL:
1071 tun->ip_ttl = nl_attr_get_u8(a);
1074 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
1075 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
1077 case OVS_TUNNEL_KEY_ATTR_CSUM:
1078 tun->flags |= FLOW_TNL_F_CSUM;
1080 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
1081 tun->tp_src = nl_attr_get_be16(a);
1083 case OVS_TUNNEL_KEY_ATTR_TP_DST:
1084 tun->tp_dst = nl_attr_get_be16(a);
1086 case OVS_TUNNEL_KEY_ATTR_OAM:
1087 tun->flags |= FLOW_TNL_F_OAM;
1089 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
1090 if (parse_geneve_opts(a)) {
1091 return ODP_FIT_ERROR;
1093 /* It is necessary to reproduce options exactly (including order)
1094 * so it's easiest to just echo them back. */
1099 /* Allow this to show up as unexpected, if there are unknown
1100 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1107 return ODP_FIT_ERROR;
1110 return ODP_FIT_TOO_MUCH;
1112 return ODP_FIT_PERFECT;
1116 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
1120 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
1122 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1123 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
1124 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
1126 if (tun_key->ip_src) {
1127 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1129 if (tun_key->ip_dst) {
1130 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1132 if (tun_key->ip_tos) {
1133 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1135 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1136 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1137 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1139 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1140 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1142 if (tun_key->tp_src) {
1143 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1145 if (tun_key->tp_dst) {
1146 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1148 if (tun_key->flags & FLOW_TNL_F_OAM) {
1149 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1152 nl_msg_end_nested(a, tun_key_ofs);
1156 odp_mask_attr_is_wildcard(const struct nlattr *ma)
1158 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1162 odp_mask_attr_is_exact(const struct nlattr *ma)
1165 enum ovs_key_attr attr = nl_attr_type(ma);
1167 if (attr == OVS_KEY_ATTR_TCP_FLAGS) {
1168 is_exact = TCP_FLAGS(nl_attr_get_be16(ma)) == TCP_FLAGS(OVS_BE16_MAX);
1169 } else if (attr == OVS_KEY_ATTR_IPV6) {
1170 const struct ovs_key_ipv6 *mask = nl_attr_get(ma);
1173 ((mask->ipv6_label & htonl(IPV6_LABEL_MASK))
1174 == htonl(IPV6_LABEL_MASK))
1175 && mask->ipv6_proto == UINT8_MAX
1176 && mask->ipv6_tclass == UINT8_MAX
1177 && mask->ipv6_hlimit == UINT8_MAX
1178 && mask->ipv6_frag == UINT8_MAX
1179 && ipv6_mask_is_exact((const struct in6_addr *)mask->ipv6_src)
1180 && ipv6_mask_is_exact((const struct in6_addr *)mask->ipv6_dst);
1181 } else if (attr == OVS_KEY_ATTR_TUNNEL) {
1182 struct flow_tnl tun_mask;
1184 memset(&tun_mask, 0, sizeof tun_mask);
1185 odp_tun_key_from_attr(ma, &tun_mask);
1186 is_exact = tun_mask.flags == FLOW_TNL_F_MASK
1187 && tun_mask.tun_id == OVS_BE64_MAX
1188 && tun_mask.ip_src == OVS_BE32_MAX
1189 && tun_mask.ip_dst == OVS_BE32_MAX
1190 && tun_mask.ip_tos == UINT8_MAX
1191 && tun_mask.ip_ttl == UINT8_MAX
1192 && tun_mask.tp_src == OVS_BE16_MAX
1193 && tun_mask.tp_dst == OVS_BE16_MAX;
1195 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
1202 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1205 struct odp_portno_names *odp_portno_names;
1207 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1208 odp_portno_names->port_no = port_no;
1209 odp_portno_names->name = xstrdup(port_name);
1210 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1211 hash_odp_port(port_no));
1215 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1217 struct odp_portno_names *odp_portno_names;
1219 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1220 hash_odp_port(port_no), portno_names) {
1221 if (odp_portno_names->port_no == port_no) {
1222 return odp_portno_names->name;
1229 odp_portno_names_destroy(struct hmap *portno_names)
1231 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1232 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1233 hmap_node, portno_names) {
1234 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1235 free(odp_portno_names->name);
1236 free(odp_portno_names);
1241 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1242 const struct hmap *portno_names, struct ds *ds,
1245 struct flow_tnl tun_key;
1246 enum ovs_key_attr attr = nl_attr_type(a);
1247 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1251 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1253 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1256 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1257 if (expected_len != -2) {
1258 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1259 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1261 if (bad_key_len || bad_mask_len) {
1263 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1264 nl_attr_get_size(a), expected_len);
1266 format_generic_odp_key(a, ds);
1268 ds_put_char(ds, '/');
1270 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1271 nl_attr_get_size(ma), expected_len);
1273 format_generic_odp_key(ma, ds);
1275 ds_put_char(ds, ')');
1281 ds_put_char(ds, '(');
1283 case OVS_KEY_ATTR_ENCAP:
1284 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1285 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1286 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1288 } else if (nl_attr_get_size(a)) {
1289 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1294 case OVS_KEY_ATTR_PRIORITY:
1295 case OVS_KEY_ATTR_SKB_MARK:
1296 case OVS_KEY_ATTR_DP_HASH:
1297 case OVS_KEY_ATTR_RECIRC_ID:
1298 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1300 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1304 case OVS_KEY_ATTR_TUNNEL: {
1305 struct flow_tnl tun_mask;
1308 memset(&tun_mask, 0, sizeof tun_mask);
1309 odp_tun_key_from_attr(ma, &tun_mask);
1312 memset(&tun_key, 0, sizeof tun_key);
1313 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1314 ds_put_format(ds, "error");
1318 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1319 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1320 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1321 ",tp_src=%"PRIu16"/%#"PRIx16
1322 ",tp_dst=%"PRIu16"/%#"PRIx16
1324 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1325 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1326 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1327 tun_key.ip_tos, tun_mask.ip_tos,
1328 tun_key.ip_ttl, tun_mask.ip_ttl,
1329 tun_key.tp_src, tun_mask.tp_src,
1330 tun_key.tp_dst, tun_mask.tp_dst);
1332 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1333 "tos=0x%"PRIx8",ttl=%"PRIu8","
1334 "tp_src=%"PRIu16",tp_dst=%"PRIu16","
1336 ntohll(tun_key.tun_id),
1337 IP_ARGS(tun_key.ip_src),
1338 IP_ARGS(tun_key.ip_dst),
1339 tun_key.ip_tos, tun_key.ip_ttl,
1340 tun_key.tp_src, tun_key.tp_dst);
1342 if (ma && ~tun_mask.flags & FLOW_TNL_F_MASK) { /* Partially masked. */
1343 format_flags_masked(ds, NULL, flow_tun_flag_to_string,
1344 tun_key.flags, tun_mask.flags);
1345 } else { /* Fully masked. */
1346 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1348 ds_put_char(ds, ')');
1351 case OVS_KEY_ATTR_IN_PORT:
1352 if (portno_names && verbose && is_exact) {
1353 char *name = odp_portno_names_get(portno_names,
1354 u32_to_odp(nl_attr_get_u32(a)));
1356 ds_put_format(ds, "%s", name);
1358 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1361 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1363 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1368 case OVS_KEY_ATTR_ETHERNET:
1370 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1371 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1373 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1374 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1375 ETH_ADDR_ARGS(eth_key->eth_src),
1376 ETH_ADDR_ARGS(eth_mask->eth_src),
1377 ETH_ADDR_ARGS(eth_key->eth_dst),
1378 ETH_ADDR_ARGS(eth_mask->eth_dst));
1380 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1382 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1383 ETH_ADDR_ARGS(eth_key->eth_src),
1384 ETH_ADDR_ARGS(eth_key->eth_dst));
1388 case OVS_KEY_ATTR_VLAN:
1390 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1392 ovs_be16 mask = nl_attr_get_be16(ma);
1393 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1394 vlan_tci_to_vid(vlan_tci),
1395 vlan_tci_to_vid(mask),
1396 vlan_tci_to_pcp(vlan_tci),
1397 vlan_tci_to_pcp(mask),
1398 vlan_tci_to_cfi(vlan_tci),
1399 vlan_tci_to_cfi(mask));
1401 format_vlan_tci(ds, vlan_tci);
1406 case OVS_KEY_ATTR_MPLS: {
1407 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1408 const struct ovs_key_mpls *mpls_mask = NULL;
1409 size_t size = nl_attr_get_size(a);
1411 if (!size || size % sizeof *mpls_key) {
1412 ds_put_format(ds, "(bad key length %"PRIuSIZE")", size);
1416 mpls_mask = nl_attr_get(ma);
1417 if (size != nl_attr_get_size(ma)) {
1418 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1419 "mask length %"PRIuSIZE")",
1420 size, nl_attr_get_size(ma));
1424 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1428 case OVS_KEY_ATTR_ETHERTYPE:
1429 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1431 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1435 case OVS_KEY_ATTR_IPV4:
1437 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1438 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1440 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1441 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1442 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1443 IP_ARGS(ipv4_key->ipv4_src),
1444 IP_ARGS(ipv4_mask->ipv4_src),
1445 IP_ARGS(ipv4_key->ipv4_dst),
1446 IP_ARGS(ipv4_mask->ipv4_dst),
1447 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1448 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1449 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1450 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1451 ipv4_mask->ipv4_frag);
1453 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1455 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1456 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1457 IP_ARGS(ipv4_key->ipv4_src),
1458 IP_ARGS(ipv4_key->ipv4_dst),
1459 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1461 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1465 case OVS_KEY_ATTR_IPV6:
1467 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1468 char src_str[INET6_ADDRSTRLEN];
1469 char dst_str[INET6_ADDRSTRLEN];
1470 char src_mask[INET6_ADDRSTRLEN];
1471 char dst_mask[INET6_ADDRSTRLEN];
1473 ipv6_key = nl_attr_get(a);
1474 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1475 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1477 ipv6_mask = nl_attr_get(ma);
1478 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1479 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1481 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1482 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1483 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1484 src_str, src_mask, dst_str, dst_mask,
1485 ntohl(ipv6_key->ipv6_label),
1486 ntohl(ipv6_mask->ipv6_label),
1487 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1488 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1489 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1490 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1491 ipv6_mask->ipv6_frag);
1493 const struct ovs_key_ipv6 *ipv6_key;
1494 char src_str[INET6_ADDRSTRLEN];
1495 char dst_str[INET6_ADDRSTRLEN];
1497 ipv6_key = nl_attr_get(a);
1498 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1499 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1501 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1502 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1503 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1504 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1505 ipv6_key->ipv6_hlimit,
1506 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1510 case OVS_KEY_ATTR_TCP:
1512 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1513 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1515 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1516 ",dst=%"PRIu16"/%#"PRIx16,
1517 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1518 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1520 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1522 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1523 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1527 case OVS_KEY_ATTR_TCP_FLAGS:
1529 format_flags_masked(ds, NULL, packet_tcp_flag_to_string,
1530 ntohs(nl_attr_get_be16(a)),
1531 ntohs(nl_attr_get_be16(ma)));
1533 format_flags(ds, packet_tcp_flag_to_string,
1534 ntohs(nl_attr_get_be16(a)), ',');
1538 case OVS_KEY_ATTR_UDP:
1540 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1541 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1543 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1544 ",dst=%"PRIu16"/%#"PRIx16,
1545 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1546 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1548 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1550 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1551 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1555 case OVS_KEY_ATTR_SCTP:
1557 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1558 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1560 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1561 ",dst=%"PRIu16"/%#"PRIx16,
1562 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1563 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1565 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1567 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1568 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1572 case OVS_KEY_ATTR_ICMP:
1574 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1575 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1577 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1578 icmp_key->icmp_type, icmp_mask->icmp_type,
1579 icmp_key->icmp_code, icmp_mask->icmp_code);
1581 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1583 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1584 icmp_key->icmp_type, icmp_key->icmp_code);
1588 case OVS_KEY_ATTR_ICMPV6:
1590 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1591 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1593 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1594 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1595 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1597 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1599 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1600 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1604 case OVS_KEY_ATTR_ARP:
1606 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1607 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1609 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1610 ",op=%"PRIu16"/%#"PRIx16
1611 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1612 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1613 IP_ARGS(arp_key->arp_sip),
1614 IP_ARGS(arp_mask->arp_sip),
1615 IP_ARGS(arp_key->arp_tip),
1616 IP_ARGS(arp_mask->arp_tip),
1617 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1618 ETH_ADDR_ARGS(arp_key->arp_sha),
1619 ETH_ADDR_ARGS(arp_mask->arp_sha),
1620 ETH_ADDR_ARGS(arp_key->arp_tha),
1621 ETH_ADDR_ARGS(arp_mask->arp_tha));
1623 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1625 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1626 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1627 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1628 ntohs(arp_key->arp_op),
1629 ETH_ADDR_ARGS(arp_key->arp_sha),
1630 ETH_ADDR_ARGS(arp_key->arp_tha));
1634 case OVS_KEY_ATTR_ND: {
1635 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1636 char target[INET6_ADDRSTRLEN];
1638 nd_key = nl_attr_get(a);
1640 nd_mask = nl_attr_get(ma);
1643 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1644 ds_put_format(ds, "target=%s", target);
1646 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1647 ds_put_format(ds, "/%s", target);
1650 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1651 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1652 ETH_ADDR_ARGS(nd_key->nd_sll));
1654 ds_put_format(ds, "/"ETH_ADDR_FMT,
1655 ETH_ADDR_ARGS(nd_mask->nd_sll));
1658 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1659 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1660 ETH_ADDR_ARGS(nd_key->nd_tll));
1662 ds_put_format(ds, "/"ETH_ADDR_FMT,
1663 ETH_ADDR_ARGS(nd_mask->nd_tll));
1668 case OVS_KEY_ATTR_UNSPEC:
1669 case __OVS_KEY_ATTR_MAX:
1671 format_generic_odp_key(a, ds);
1673 ds_put_char(ds, '/');
1674 format_generic_odp_key(ma, ds);
1678 ds_put_char(ds, ')');
1681 static struct nlattr *
1682 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1684 const struct nlattr *a;
1686 int type = nl_attr_type(key);
1687 int size = nl_attr_get_size(key);
1689 if (odp_flow_key_attr_len(type) >=0) {
1690 nl_msg_put_unspec_zero(ofp, type, size);
1694 nested_mask = nl_msg_start_nested(ofp, type);
1695 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1696 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1698 nl_msg_end_nested(ofp, nested_mask);
1701 return ofpbuf_base(ofp);
1704 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1705 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1706 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1707 * non-null and 'verbose' is true, translates odp port number to its name. */
1709 odp_flow_format(const struct nlattr *key, size_t key_len,
1710 const struct nlattr *mask, size_t mask_len,
1711 const struct hmap *portno_names, struct ds *ds, bool verbose)
1714 const struct nlattr *a;
1716 bool has_ethtype_key = false;
1717 const struct nlattr *ma = NULL;
1719 bool first_field = true;
1721 ofpbuf_init(&ofp, 100);
1722 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1723 bool is_nested_attr;
1724 bool is_wildcard = false;
1725 int attr_type = nl_attr_type(a);
1727 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1728 has_ethtype_key = true;
1731 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1733 if (mask && mask_len) {
1734 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1735 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1738 if (verbose || !is_wildcard || is_nested_attr) {
1739 if (is_wildcard && !ma) {
1740 ma = generate_all_wildcard_mask(&ofp, a);
1743 ds_put_char(ds, ',');
1745 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1746 first_field = false;
1750 ofpbuf_uninit(&ofp);
1755 if (left == key_len) {
1756 ds_put_cstr(ds, "<empty>");
1758 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1759 for (i = 0; i < left; i++) {
1760 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1762 ds_put_char(ds, ')');
1764 if (!has_ethtype_key) {
1765 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1767 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1768 ntohs(nl_attr_get_be16(ma)));
1772 ds_put_cstr(ds, "<empty>");
1776 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1777 * OVS_KEY_ATTR_* attributes in 'key'. */
1779 odp_flow_key_format(const struct nlattr *key,
1780 size_t key_len, struct ds *ds)
1782 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1786 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1787 const uint8_t *nd_tll, struct ofpbuf *key)
1790 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1794 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1797 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1801 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1802 const uint8_t *nd_tll, struct ofpbuf *key)
1804 struct ovs_key_nd nd_key;
1806 memset(&nd_key, 0, sizeof nd_key);
1808 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1812 put_nd(&nd_key, nd_sll, nd_tll, key);
1817 put_nd_mask(int n, const char *nd_target_s,
1818 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1820 struct ovs_key_nd nd_mask;
1822 memset(&nd_mask, 0xff, sizeof nd_mask);
1824 if (strlen(nd_target_s) != 0 &&
1825 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1829 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1834 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1836 if (!strcasecmp(s, "no")) {
1837 *type = OVS_FRAG_TYPE_NONE;
1838 } else if (!strcasecmp(s, "first")) {
1839 *type = OVS_FRAG_TYPE_FIRST;
1840 } else if (!strcasecmp(s, "later")) {
1841 *type = OVS_FRAG_TYPE_LATER;
1849 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1851 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1852 (mpls_tc << MPLS_TC_SHIFT) |
1853 (mpls_ttl << MPLS_TTL_SHIFT) |
1854 (mpls_bos << MPLS_BOS_SHIFT)));
1858 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1859 struct ofpbuf *key, struct ofpbuf *mask)
1863 uint32_t priority_mask;
1866 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1867 &priority, &priority_mask, &n)) {
1868 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1869 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1871 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1872 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1874 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1885 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1887 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1888 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1890 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1891 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1893 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1903 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1904 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1906 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1914 uint32_t dp_hash_mask;
1917 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1918 &dp_hash_mask, &n)) {
1919 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1920 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1922 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1923 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1925 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1932 uint64_t tun_id, tun_id_mask;
1933 int tp_src, tp_src_mask, tp_dst, tp_dst_mask;
1934 struct flow_tnl tun_key, tun_key_mask;
1937 memset(&tun_key, 0, sizeof tun_key);
1938 memset(&tun_key_mask, 0, sizeof tun_key_mask);
1940 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1941 "src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1942 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1943 "tos=%"SCNi8"/%"SCNi8","
1944 "ttl=%"SCNi8"/%"SCNi8","
1945 "tp_src=%i/%i,tp_dst=%i/%i,flags%n",
1946 &tun_id, &tun_id_mask,
1947 IP_SCAN_ARGS(&tun_key.ip_src),
1948 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1949 IP_SCAN_ARGS(&tun_key.ip_dst),
1950 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1951 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1952 &tun_key.ip_ttl, &tun_key_mask.ip_ttl,
1953 &tp_src, &tp_src_mask, &tp_dst, &tp_dst_mask,
1956 uint32_t flags, fmask;
1958 tun_key.tun_id = htonll(tun_id);
1959 tun_key_mask.tun_id = htonll(tun_id_mask);
1960 tun_key.tp_src = htons(tp_src);
1961 tun_key_mask.tp_src = htons(tp_src_mask);
1962 tun_key.tp_dst = htons(tp_dst);
1963 tun_key_mask.tp_dst = htons(tp_dst_mask);
1964 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags,
1965 FLOW_TNL_F_MASK, &fmask);
1966 tun_key.flags = flags;
1967 tun_key_mask.flags = fmask;
1977 tun_key_to_attr(key, &tun_key);
1979 tun_key_to_attr(mask, &tun_key_mask);
1982 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1983 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1984 ",tos=%"SCNi8",ttl=%"SCNi8",tp_src=%i,tp_dst=%i,"
1986 IP_SCAN_ARGS(&tun_key.ip_src),
1987 IP_SCAN_ARGS(&tun_key.ip_dst),
1988 &tun_key.ip_tos, &tun_key.ip_ttl,
1989 &tp_src, &tp_dst, &n)) {
1993 tun_key.tun_id = htonll(tun_id);
1994 tun_key.tp_src = htons(tp_src);
1995 tun_key.tp_dst = htons(tp_dst);
1996 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags,
1997 FLOW_TNL_F_MASK, NULL);
1998 tun_key.flags = flags;
2008 tun_key_to_attr(key, &tun_key);
2011 memset(&tun_key, 0xff, sizeof tun_key);
2012 tun_key_to_attr(mask, &tun_key);
2020 uint32_t in_port_mask;
2023 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
2024 &in_port, &in_port_mask, &n)) {
2025 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
2026 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
2028 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
2029 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
2031 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
2038 if (port_names && !strncmp(s, "in_port(", 8)) {
2040 const struct simap_node *node;
2044 name_len = strcspn(name, ")");
2045 node = simap_find_len(port_names, name, name_len);
2047 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
2050 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
2052 return 8 + name_len + 1;
2057 struct ovs_key_ethernet eth_key;
2058 struct ovs_key_ethernet eth_key_mask;
2061 if (mask && ovs_scan(s,
2062 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2063 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2064 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
2065 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
2066 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
2067 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
2068 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
2069 ð_key, sizeof eth_key);
2070 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
2071 ð_key_mask, sizeof eth_key_mask);
2073 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
2074 "dst="ETH_ADDR_SCAN_FMT")%n",
2075 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
2076 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
2077 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
2078 ð_key, sizeof eth_key);
2081 memset(ð_key, 0xff, sizeof eth_key);
2082 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
2083 ð_key, sizeof eth_key);
2095 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
2096 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
2097 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2098 htons((vid << VLAN_VID_SHIFT) |
2099 (pcp << VLAN_PCP_SHIFT) |
2101 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
2102 htons((vid_mask << VLAN_VID_SHIFT) |
2103 (pcp_mask << VLAN_PCP_SHIFT) |
2104 (1 << VLAN_CFI_SHIFT)));
2106 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
2107 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2108 htons((vid << VLAN_VID_SHIFT) |
2109 (pcp << VLAN_PCP_SHIFT) |
2112 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
2116 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
2117 &vid, &vid_mask, &pcp, &pcp_mask,
2118 &cfi, &cfi_mask, &n)) {
2119 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2120 htons((vid << VLAN_VID_SHIFT) |
2121 (pcp << VLAN_PCP_SHIFT) |
2122 (cfi ? VLAN_CFI : 0)));
2123 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
2124 htons((vid_mask << VLAN_VID_SHIFT) |
2125 (pcp_mask << VLAN_PCP_SHIFT) |
2126 (cfi_mask << VLAN_CFI_SHIFT)));
2128 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
2129 &vid, &pcp, &cfi, &n)) {
2130 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2131 htons((vid << VLAN_VID_SHIFT) |
2132 (pcp << VLAN_PCP_SHIFT) |
2133 (cfi ? VLAN_CFI : 0)));
2135 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
2146 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
2147 ð_type, ð_type_mask, &n)) {
2148 if (eth_type != 0) {
2149 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
2151 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
2153 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
2154 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
2156 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2163 int label, tc, ttl, bos;
2164 int label_mask, tc_mask, ttl_mask, bos_mask;
2167 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
2168 "ttl=%i/%i,bos=%i/%i)%n",
2169 &label, &label_mask, &tc, &tc_mask,
2170 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
2171 struct ovs_key_mpls *mpls, *mpls_mask;
2173 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2175 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2177 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2179 mpls_mask->mpls_lse = mpls_lse_from_components(
2180 label_mask, tc_mask, ttl_mask, bos_mask);
2182 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
2183 &label, &tc, &ttl, &bos, &n)) {
2184 struct ovs_key_mpls *mpls;
2186 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2188 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2190 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2192 mpls->mpls_lse = OVS_BE32_MAX;
2200 struct ovs_key_ipv4 ipv4_key;
2201 struct ovs_key_ipv4 ipv4_mask;
2204 enum ovs_frag_type ipv4_frag;
2208 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
2209 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
2210 "proto=%"SCNi8"/%"SCNi8","
2211 "tos=%"SCNi8"/%"SCNi8","
2212 "ttl=%"SCNi8"/%"SCNi8","
2213 "frag=%7[a-z]/%"SCNi8")%n",
2214 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2215 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
2216 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2217 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
2218 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
2219 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
2220 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
2221 frag, &ipv4_mask.ipv4_frag, &n)
2222 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2223 ipv4_key.ipv4_frag = ipv4_frag;
2224 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2225 &ipv4_key, sizeof ipv4_key);
2227 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2228 &ipv4_mask, sizeof ipv4_mask);
2230 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
2231 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
2233 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2234 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2235 &ipv4_key.ipv4_proto,
2239 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2240 ipv4_key.ipv4_frag = ipv4_frag;
2241 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2242 &ipv4_key, sizeof ipv4_key);
2245 memset(&ipv4_key, 0xff, sizeof ipv4_key);
2246 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2247 &ipv4_key, sizeof ipv4_key);
2254 char ipv6_src_s[IPV6_SCAN_LEN + 1];
2255 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
2256 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
2257 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
2258 int ipv6_label, ipv6_label_mask;
2259 int ipv6_proto, ipv6_proto_mask;
2260 int ipv6_tclass, ipv6_tclass_mask;
2261 int ipv6_hlimit, ipv6_hlimit_mask;
2263 enum ovs_frag_type ipv6_frag;
2267 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2268 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2269 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2270 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2271 ipv6_src_s, ipv6_src_mask_s,
2272 ipv6_dst_s, ipv6_dst_mask_s,
2273 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2274 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2275 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2276 &ipv6_frag_mask, &n)
2277 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2278 struct ovs_key_ipv6 ipv6_key;
2279 struct ovs_key_ipv6 ipv6_mask;
2281 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2282 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2283 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2284 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2288 ipv6_key.ipv6_label = htonl(ipv6_label);
2289 ipv6_key.ipv6_proto = ipv6_proto;
2290 ipv6_key.ipv6_tclass = ipv6_tclass;
2291 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2292 ipv6_key.ipv6_frag = ipv6_frag;
2293 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2294 &ipv6_key, sizeof ipv6_key);
2296 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2297 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2298 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2299 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2300 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2301 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2302 &ipv6_mask, sizeof ipv6_mask);
2304 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2305 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2307 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2308 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2309 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2310 struct ovs_key_ipv6 ipv6_key;
2312 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2313 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2316 ipv6_key.ipv6_label = htonl(ipv6_label);
2317 ipv6_key.ipv6_proto = ipv6_proto;
2318 ipv6_key.ipv6_tclass = ipv6_tclass;
2319 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2320 ipv6_key.ipv6_frag = ipv6_frag;
2321 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2322 &ipv6_key, sizeof ipv6_key);
2325 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2326 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2327 &ipv6_key, sizeof ipv6_key);
2340 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2341 &tcp_src, &tcp_src_mask, &tcp_dst,
2342 &tcp_dst_mask, &n)) {
2343 struct ovs_key_tcp tcp_key;
2344 struct ovs_key_tcp tcp_mask;
2346 tcp_key.tcp_src = htons(tcp_src);
2347 tcp_key.tcp_dst = htons(tcp_dst);
2348 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2350 tcp_mask.tcp_src = htons(tcp_src_mask);
2351 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2352 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2353 &tcp_mask, sizeof tcp_mask);
2355 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2356 &tcp_src, &tcp_dst, &n)) {
2357 struct ovs_key_tcp tcp_key;
2359 tcp_key.tcp_src = htons(tcp_src);
2360 tcp_key.tcp_dst = htons(tcp_dst);
2361 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2364 memset(&tcp_key, 0xff, sizeof tcp_key);
2365 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2366 &tcp_key, sizeof tcp_key);
2375 if (ovs_scan(s, "tcp_flags%n", &n) && n > 0) {
2376 uint32_t flags, fmask;
2377 int res = parse_flags(&s[n], packet_tcp_flag_to_string,
2378 &flags, TCP_FLAGS(OVS_BE16_MAX), &fmask);
2383 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(flags));
2385 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(fmask));
2398 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2399 &udp_src, &udp_src_mask,
2400 &udp_dst, &udp_dst_mask, &n)) {
2401 struct ovs_key_udp udp_key;
2402 struct ovs_key_udp udp_mask;
2404 udp_key.udp_src = htons(udp_src);
2405 udp_key.udp_dst = htons(udp_dst);
2406 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2408 udp_mask.udp_src = htons(udp_src_mask);
2409 udp_mask.udp_dst = htons(udp_dst_mask);
2410 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2411 &udp_mask, sizeof udp_mask);
2414 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2415 struct ovs_key_udp udp_key;
2417 udp_key.udp_src = htons(udp_src);
2418 udp_key.udp_dst = htons(udp_dst);
2419 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2422 memset(&udp_key, 0xff, sizeof udp_key);
2423 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2436 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2437 &sctp_src, &sctp_src_mask,
2438 &sctp_dst, &sctp_dst_mask, &n)) {
2439 struct ovs_key_sctp sctp_key;
2440 struct ovs_key_sctp sctp_mask;
2442 sctp_key.sctp_src = htons(sctp_src);
2443 sctp_key.sctp_dst = htons(sctp_dst);
2444 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2446 sctp_mask.sctp_src = htons(sctp_src_mask);
2447 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2448 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2449 &sctp_mask, sizeof sctp_mask);
2452 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2453 struct ovs_key_sctp sctp_key;
2455 sctp_key.sctp_src = htons(sctp_src);
2456 sctp_key.sctp_dst = htons(sctp_dst);
2457 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2460 memset(&sctp_key, 0xff, sizeof sctp_key);
2461 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2468 struct ovs_key_icmp icmp_key;
2469 struct ovs_key_icmp icmp_mask;
2472 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2473 "code=%"SCNi8"/%"SCNi8")%n",
2474 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2475 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2476 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2477 &icmp_key, sizeof icmp_key);
2478 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2479 &icmp_mask, sizeof icmp_mask);
2481 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2482 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2483 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2484 &icmp_key, sizeof icmp_key);
2486 memset(&icmp_key, 0xff, sizeof icmp_key);
2487 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2495 struct ovs_key_icmpv6 icmpv6_key;
2496 struct ovs_key_icmpv6 icmpv6_mask;
2499 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2500 "code=%"SCNi8"/%"SCNi8")%n",
2501 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2502 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2504 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2505 &icmpv6_key, sizeof icmpv6_key);
2506 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2507 sizeof icmpv6_mask);
2509 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2510 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2512 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2513 &icmpv6_key, sizeof icmpv6_key);
2516 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2517 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2525 struct ovs_key_arp arp_key;
2526 struct ovs_key_arp arp_mask;
2527 uint16_t arp_op, arp_op_mask;
2530 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2531 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2532 "op=%"SCNi16"/%"SCNi16","
2533 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2534 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2535 IP_SCAN_ARGS(&arp_key.arp_sip),
2536 IP_SCAN_ARGS(&arp_mask.arp_sip),
2537 IP_SCAN_ARGS(&arp_key.arp_tip),
2538 IP_SCAN_ARGS(&arp_mask.arp_tip),
2539 &arp_op, &arp_op_mask,
2540 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2541 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2542 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2543 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2544 arp_key.arp_op = htons(arp_op);
2545 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2546 arp_mask.arp_op = htons(arp_op_mask);
2547 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2548 &arp_mask, sizeof arp_mask);
2550 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2551 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2552 "tha="ETH_ADDR_SCAN_FMT")%n",
2553 IP_SCAN_ARGS(&arp_key.arp_sip),
2554 IP_SCAN_ARGS(&arp_key.arp_tip),
2556 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2557 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2558 arp_key.arp_op = htons(arp_op);
2559 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2562 memset(&arp_key, 0xff, sizeof arp_key);
2563 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2564 &arp_key, sizeof arp_key);
2571 char nd_target_s[IPV6_SCAN_LEN + 1];
2572 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2573 uint8_t nd_sll[ETH_ADDR_LEN];
2574 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2575 uint8_t nd_tll[ETH_ADDR_LEN];
2576 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2579 nd_target_mask_s[0] = 0;
2580 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2581 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2583 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2584 nd_target_s, nd_target_mask_s, &n)) {
2585 put_nd_key(n, nd_target_s, NULL, NULL, key);
2586 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2587 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2589 put_nd_key(n, nd_target_s, NULL, NULL, key);
2591 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2594 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2595 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2596 nd_target_s, nd_target_mask_s,
2597 ETH_ADDR_SCAN_ARGS(nd_sll),
2598 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2599 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2600 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2601 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2602 "sll="ETH_ADDR_SCAN_FMT")%n",
2603 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2604 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2606 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2609 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2610 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2611 nd_target_s, nd_target_mask_s,
2612 ETH_ADDR_SCAN_ARGS(nd_tll),
2613 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2614 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2615 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2616 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2617 "tll="ETH_ADDR_SCAN_FMT")%n",
2618 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2619 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2621 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2624 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2625 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2626 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2627 nd_target_s, nd_target_mask_s,
2628 ETH_ADDR_SCAN_ARGS(nd_sll),
2629 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2630 ETH_ADDR_SCAN_ARGS(nd_tll),
2631 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2633 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2634 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2635 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2636 "sll="ETH_ADDR_SCAN_FMT","
2637 "tll="ETH_ADDR_SCAN_FMT")%n",
2638 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2639 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2640 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2642 put_nd_mask(n, nd_target_mask_s,
2643 nd_sll_mask, nd_tll_mask, mask);
2652 if (!strncmp(s, "encap(", 6)) {
2653 const char *start = s;
2654 size_t encap, encap_mask = 0;
2656 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2658 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2665 s += strspn(s, ", \t\r\n");
2668 } else if (*s == ')') {
2672 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2680 nl_msg_end_nested(key, encap);
2682 nl_msg_end_nested(mask, encap_mask);
2691 /* Parses the string representation of a datapath flow key, in the
2692 * format output by odp_flow_key_format(). Returns 0 if successful,
2693 * otherwise a positive errno value. On success, the flow key is
2694 * appended to 'key' as a series of Netlink attributes. On failure, no
2695 * data is appended to 'key'. Either way, 'key''s data might be
2698 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2699 * to a port number. (Port names may be used instead of port numbers in
2702 * On success, the attributes appended to 'key' are individually syntactically
2703 * valid, but they may not be valid as a sequence. 'key' might, for example,
2704 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2706 odp_flow_from_string(const char *s, const struct simap *port_names,
2707 struct ofpbuf *key, struct ofpbuf *mask)
2709 const size_t old_size = ofpbuf_size(key);
2713 s += strspn(s, delimiters);
2718 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2720 ofpbuf_set_size(key, old_size);
2730 ovs_to_odp_frag(uint8_t nw_frag)
2732 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2733 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2734 : OVS_FRAG_TYPE_LATER);
2738 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2740 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2742 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2743 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2749 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2750 const struct flow *mask, odp_port_t odp_in_port,
2751 size_t max_mpls_depth, bool recirc, bool export_mask)
2753 struct ovs_key_ethernet *eth_key;
2755 const struct flow *data = export_mask ? mask : flow;
2757 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2759 if (flow->tunnel.ip_dst || export_mask) {
2760 tun_key_to_attr(buf, &data->tunnel);
2763 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2766 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2767 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2770 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2771 * is not the magical value "ODPP_NONE". */
2772 if (export_mask || odp_in_port != ODPP_NONE) {
2773 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2776 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2778 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2779 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2781 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2783 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2785 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2787 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2788 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2789 if (flow->vlan_tci == htons(0)) {
2796 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2797 /* For backwards compatibility with kernels that don't support
2798 * wildcarding, the following convention is used to encode the
2799 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2802 * -------- -------- -------
2803 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2804 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2805 * <none> 0xffff Any non-Ethernet II frame (except valid
2806 * 802.3 SNAP packet with valid eth_type).
2809 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2814 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2816 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2817 struct ovs_key_ipv4 *ipv4_key;
2819 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2821 ipv4_key->ipv4_src = data->nw_src;
2822 ipv4_key->ipv4_dst = data->nw_dst;
2823 ipv4_key->ipv4_proto = data->nw_proto;
2824 ipv4_key->ipv4_tos = data->nw_tos;
2825 ipv4_key->ipv4_ttl = data->nw_ttl;
2826 ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2827 : ovs_to_odp_frag(data->nw_frag);
2828 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2829 struct ovs_key_ipv6 *ipv6_key;
2831 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2833 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2834 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2835 ipv6_key->ipv6_label = data->ipv6_label;
2836 ipv6_key->ipv6_proto = data->nw_proto;
2837 ipv6_key->ipv6_tclass = data->nw_tos;
2838 ipv6_key->ipv6_hlimit = data->nw_ttl;
2839 ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2840 : ovs_to_odp_frag(data->nw_frag);
2841 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2842 flow->dl_type == htons(ETH_TYPE_RARP)) {
2843 struct ovs_key_arp *arp_key;
2845 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2847 arp_key->arp_sip = data->nw_src;
2848 arp_key->arp_tip = data->nw_dst;
2849 arp_key->arp_op = htons(data->nw_proto);
2850 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2851 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2852 } else if (eth_type_mpls(flow->dl_type)) {
2853 struct ovs_key_mpls *mpls_key;
2856 n = flow_count_mpls_labels(flow, NULL);
2857 n = MIN(n, max_mpls_depth);
2858 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2859 n * sizeof *mpls_key);
2860 for (i = 0; i < n; i++) {
2861 mpls_key[i].mpls_lse = data->mpls_lse[i];
2865 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2866 if (flow->nw_proto == IPPROTO_TCP) {
2867 struct ovs_key_tcp *tcp_key;
2869 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2871 tcp_key->tcp_src = data->tp_src;
2872 tcp_key->tcp_dst = data->tp_dst;
2874 if (data->tcp_flags) {
2875 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2877 } else if (flow->nw_proto == IPPROTO_UDP) {
2878 struct ovs_key_udp *udp_key;
2880 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2882 udp_key->udp_src = data->tp_src;
2883 udp_key->udp_dst = data->tp_dst;
2884 } else if (flow->nw_proto == IPPROTO_SCTP) {
2885 struct ovs_key_sctp *sctp_key;
2887 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2889 sctp_key->sctp_src = data->tp_src;
2890 sctp_key->sctp_dst = data->tp_dst;
2891 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2892 && flow->nw_proto == IPPROTO_ICMP) {
2893 struct ovs_key_icmp *icmp_key;
2895 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2897 icmp_key->icmp_type = ntohs(data->tp_src);
2898 icmp_key->icmp_code = ntohs(data->tp_dst);
2899 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2900 && flow->nw_proto == IPPROTO_ICMPV6) {
2901 struct ovs_key_icmpv6 *icmpv6_key;
2903 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2904 sizeof *icmpv6_key);
2905 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2906 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2908 if (flow->tp_dst == htons(0)
2909 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
2910 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
2911 && (!export_mask || (data->tp_src == htons(0xffff)
2912 && data->tp_dst == htons(0xffff)))) {
2914 struct ovs_key_nd *nd_key;
2916 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2918 memcpy(nd_key->nd_target, &data->nd_target,
2919 sizeof nd_key->nd_target);
2920 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2921 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2928 nl_msg_end_nested(buf, encap);
2932 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2933 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2934 * number rather than a datapath port number). Instead, if 'odp_in_port'
2935 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2938 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2939 * capable of being expanded to allow for that much space.
2941 * 'recirc' indicates support for recirculation fields. If this is true, then
2942 * these fields will always be serialised. */
2944 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2945 const struct flow *mask, odp_port_t odp_in_port,
2948 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
2952 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2953 * 'buf'. 'flow' is used as a template to determine how to interpret
2954 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2955 * it doesn't indicate whether the other fields should be interpreted as
2956 * ARP, IPv4, IPv6, etc.
2958 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2959 * capable of being expanded to allow for that much space.
2961 * 'recirc' indicates support for recirculation fields. If this is true, then
2962 * these fields will always be serialised. */
2964 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2965 const struct flow *flow, uint32_t odp_in_port_mask,
2966 size_t max_mpls_depth, bool recirc)
2968 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
2969 max_mpls_depth, recirc, true);
2972 /* Generate ODP flow key from the given packet metadata */
2974 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2976 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2978 if (md->tunnel.ip_dst) {
2979 tun_key_to_attr(buf, &md->tunnel);
2982 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2984 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2985 * value "ODPP_NONE". */
2986 if (md->in_port.odp_port != ODPP_NONE) {
2987 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2991 /* Generate packet metadata from the given ODP flow key. */
2993 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2994 struct pkt_metadata *md)
2996 const struct nlattr *nla;
2998 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2999 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
3000 1u << OVS_KEY_ATTR_IN_PORT;
3002 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
3004 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
3005 uint16_t type = nl_attr_type(nla);
3006 size_t len = nl_attr_get_size(nla);
3007 int expected_len = odp_flow_key_attr_len(type);
3009 if (len != expected_len && expected_len >= 0) {
3014 case OVS_KEY_ATTR_RECIRC_ID:
3015 md->recirc_id = nl_attr_get_u32(nla);
3016 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
3018 case OVS_KEY_ATTR_DP_HASH:
3019 md->dp_hash = nl_attr_get_u32(nla);
3020 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
3022 case OVS_KEY_ATTR_PRIORITY:
3023 md->skb_priority = nl_attr_get_u32(nla);
3024 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
3026 case OVS_KEY_ATTR_SKB_MARK:
3027 md->pkt_mark = nl_attr_get_u32(nla);
3028 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
3030 case OVS_KEY_ATTR_TUNNEL: {
3031 enum odp_key_fitness res;
3033 res = odp_tun_key_from_attr(nla, &md->tunnel);
3034 if (res == ODP_FIT_ERROR) {
3035 memset(&md->tunnel, 0, sizeof md->tunnel);
3036 } else if (res == ODP_FIT_PERFECT) {
3037 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
3041 case OVS_KEY_ATTR_IN_PORT:
3042 md->in_port.odp_port = nl_attr_get_odp_port(nla);
3043 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
3049 if (!wanted_attrs) {
3050 return; /* Have everything. */
3056 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
3058 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
3059 return hash_words(ALIGNED_CAST(const uint32_t *, key),
3060 key_len / sizeof(uint32_t), 0);
3064 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
3065 uint64_t attrs, int out_of_range_attr,
3066 const struct nlattr *key, size_t key_len)
3071 if (VLOG_DROP_DBG(rl)) {
3076 for (i = 0; i < 64; i++) {
3077 if (attrs & (UINT64_C(1) << i)) {
3078 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3080 ds_put_format(&s, " %s",
3081 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
3084 if (out_of_range_attr) {
3085 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
3088 ds_put_cstr(&s, ": ");
3089 odp_flow_key_format(key, key_len, &s);
3091 VLOG_DBG("%s:%s", title, ds_cstr(&s));
3096 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
3098 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3100 if (odp_frag > OVS_FRAG_TYPE_LATER) {
3101 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
3105 if (odp_frag != OVS_FRAG_TYPE_NONE) {
3106 flow->nw_frag |= FLOW_NW_FRAG_ANY;
3107 if (odp_frag == OVS_FRAG_TYPE_LATER) {
3108 flow->nw_frag |= FLOW_NW_FRAG_LATER;
3115 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
3116 const struct nlattr *attrs[], uint64_t *present_attrsp,
3117 int *out_of_range_attrp)
3119 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3120 const struct nlattr *nla;
3121 uint64_t present_attrs;
3124 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
3126 *out_of_range_attrp = 0;
3127 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
3128 uint16_t type = nl_attr_type(nla);
3129 size_t len = nl_attr_get_size(nla);
3130 int expected_len = odp_flow_key_attr_len(type);
3132 if (len != expected_len && expected_len >= 0) {
3133 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3135 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
3136 "length %d", ovs_key_attr_to_string(type, namebuf,
3142 if (type > OVS_KEY_ATTR_MAX) {
3143 *out_of_range_attrp = type;
3145 if (present_attrs & (UINT64_C(1) << type)) {
3146 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3148 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
3149 ovs_key_attr_to_string(type,
3150 namebuf, sizeof namebuf));
3154 present_attrs |= UINT64_C(1) << type;
3159 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
3163 *present_attrsp = present_attrs;
3167 static enum odp_key_fitness
3168 check_expectations(uint64_t present_attrs, int out_of_range_attr,
3169 uint64_t expected_attrs,
3170 const struct nlattr *key, size_t key_len)
3172 uint64_t missing_attrs;
3173 uint64_t extra_attrs;
3175 missing_attrs = expected_attrs & ~present_attrs;
3176 if (missing_attrs) {
3177 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3178 log_odp_key_attributes(&rl, "expected but not present",
3179 missing_attrs, 0, key, key_len);
3180 return ODP_FIT_TOO_LITTLE;
3183 extra_attrs = present_attrs & ~expected_attrs;
3184 if (extra_attrs || out_of_range_attr) {
3185 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3186 log_odp_key_attributes(&rl, "present but not expected",
3187 extra_attrs, out_of_range_attr, key, key_len);
3188 return ODP_FIT_TOO_MUCH;
3191 return ODP_FIT_PERFECT;
3195 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3196 uint64_t present_attrs, uint64_t *expected_attrs,
3197 struct flow *flow, const struct flow *src_flow)
3199 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3200 bool is_mask = flow != src_flow;
3202 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
3203 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
3204 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
3205 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
3206 ntohs(flow->dl_type));
3209 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
3210 flow->dl_type != htons(0xffff)) {
3213 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
3216 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
3217 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
3218 /* See comments in odp_flow_key_from_flow__(). */
3219 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
3226 static enum odp_key_fitness
3227 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3228 uint64_t present_attrs, int out_of_range_attr,
3229 uint64_t expected_attrs, struct flow *flow,
3230 const struct nlattr *key, size_t key_len,
3231 const struct flow *src_flow)
3233 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3234 bool is_mask = src_flow != flow;
3235 const void *check_start = NULL;
3236 size_t check_len = 0;
3237 enum ovs_key_attr expected_bit = 0xff;
3239 if (eth_type_mpls(src_flow->dl_type)) {
3240 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
3241 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
3242 int n = size / sizeof(ovs_be32);
3245 if (!size || size % sizeof(ovs_be32)) {
3246 return ODP_FIT_ERROR;
3250 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3252 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
3253 return ODP_FIT_TOO_LITTLE;
3255 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
3256 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
3257 return ODP_FIT_ERROR;
3259 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3262 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3263 flow->mpls_lse[i] = mpls_lse[i];
3265 if (n > FLOW_MAX_MPLS_LABELS) {
3266 return ODP_FIT_TOO_MUCH;
3270 /* BOS may be set only in the innermost label. */
3271 for (i = 0; i < n - 1; i++) {
3272 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3273 return ODP_FIT_ERROR;
3277 /* BOS must be set in the innermost label. */
3278 if (n < FLOW_MAX_MPLS_LABELS
3279 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3280 return ODP_FIT_TOO_LITTLE;
3285 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3287 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3289 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3290 const struct ovs_key_ipv4 *ipv4_key;
3292 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3293 flow->nw_src = ipv4_key->ipv4_src;
3294 flow->nw_dst = ipv4_key->ipv4_dst;
3295 flow->nw_proto = ipv4_key->ipv4_proto;
3296 flow->nw_tos = ipv4_key->ipv4_tos;
3297 flow->nw_ttl = ipv4_key->ipv4_ttl;
3299 flow->nw_frag = ipv4_key->ipv4_frag;
3300 check_start = ipv4_key;
3301 check_len = sizeof *ipv4_key;
3302 expected_bit = OVS_KEY_ATTR_IPV4;
3303 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3304 return ODP_FIT_ERROR;
3307 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3309 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3311 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3312 const struct ovs_key_ipv6 *ipv6_key;
3314 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3315 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3316 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3317 flow->ipv6_label = ipv6_key->ipv6_label;
3318 flow->nw_proto = ipv6_key->ipv6_proto;
3319 flow->nw_tos = ipv6_key->ipv6_tclass;
3320 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3322 flow->nw_frag = ipv6_key->ipv6_frag;
3323 check_start = ipv6_key;
3324 check_len = sizeof *ipv6_key;
3325 expected_bit = OVS_KEY_ATTR_IPV6;
3326 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3327 return ODP_FIT_ERROR;
3330 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3331 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3333 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3335 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3336 const struct ovs_key_arp *arp_key;
3338 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3339 flow->nw_src = arp_key->arp_sip;
3340 flow->nw_dst = arp_key->arp_tip;
3341 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3342 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3343 "key", ntohs(arp_key->arp_op));
3344 return ODP_FIT_ERROR;
3346 flow->nw_proto = ntohs(arp_key->arp_op);
3347 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3348 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3351 check_start = arp_key;
3352 check_len = sizeof *arp_key;
3353 expected_bit = OVS_KEY_ATTR_ARP;
3359 if (check_len > 0) { /* Happens only when 'is_mask'. */
3360 if (!is_all_zeros(check_start, check_len) &&
3361 flow->dl_type != htons(0xffff)) {
3362 return ODP_FIT_ERROR;
3364 expected_attrs |= UINT64_C(1) << expected_bit;
3368 expected_bit = OVS_KEY_ATTR_UNSPEC;
3369 if (src_flow->nw_proto == IPPROTO_TCP
3370 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3371 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3372 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3374 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3376 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3377 const struct ovs_key_tcp *tcp_key;
3379 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3380 flow->tp_src = tcp_key->tcp_src;
3381 flow->tp_dst = tcp_key->tcp_dst;
3382 expected_bit = OVS_KEY_ATTR_TCP;
3384 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3385 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3386 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3388 } else if (src_flow->nw_proto == IPPROTO_UDP
3389 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3390 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3391 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3393 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3395 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3396 const struct ovs_key_udp *udp_key;
3398 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3399 flow->tp_src = udp_key->udp_src;
3400 flow->tp_dst = udp_key->udp_dst;
3401 expected_bit = OVS_KEY_ATTR_UDP;
3403 } else if (src_flow->nw_proto == IPPROTO_SCTP
3404 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3405 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3406 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3408 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3410 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3411 const struct ovs_key_sctp *sctp_key;
3413 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3414 flow->tp_src = sctp_key->sctp_src;
3415 flow->tp_dst = sctp_key->sctp_dst;
3416 expected_bit = OVS_KEY_ATTR_SCTP;
3418 } else if (src_flow->nw_proto == IPPROTO_ICMP
3419 && src_flow->dl_type == htons(ETH_TYPE_IP)
3420 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3422 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3424 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3425 const struct ovs_key_icmp *icmp_key;
3427 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3428 flow->tp_src = htons(icmp_key->icmp_type);
3429 flow->tp_dst = htons(icmp_key->icmp_code);
3430 expected_bit = OVS_KEY_ATTR_ICMP;
3432 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3433 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3434 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3436 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3438 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3439 const struct ovs_key_icmpv6 *icmpv6_key;
3441 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3442 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3443 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3444 expected_bit = OVS_KEY_ATTR_ICMPV6;
3445 if (src_flow->tp_dst == htons(0) &&
3446 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3447 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3449 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3451 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3452 const struct ovs_key_nd *nd_key;
3454 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3455 memcpy(&flow->nd_target, nd_key->nd_target,
3456 sizeof flow->nd_target);
3457 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3458 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3460 if (!is_all_zeros(nd_key, sizeof *nd_key) &&
3461 (flow->tp_src != htons(0xffff) ||
3462 flow->tp_dst != htons(0xffff))) {
3463 return ODP_FIT_ERROR;
3465 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3472 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3473 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3474 return ODP_FIT_ERROR;
3476 expected_attrs |= UINT64_C(1) << expected_bit;
3481 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3485 /* Parse 802.1Q header then encapsulated L3 attributes. */
3486 static enum odp_key_fitness
3487 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3488 uint64_t present_attrs, int out_of_range_attr,
3489 uint64_t expected_attrs, struct flow *flow,
3490 const struct nlattr *key, size_t key_len,
3491 const struct flow *src_flow)
3493 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3494 bool is_mask = src_flow != flow;
3496 const struct nlattr *encap
3497 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3498 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3499 enum odp_key_fitness encap_fitness;
3500 enum odp_key_fitness fitness;
3502 /* Calculate fitness of outer attributes. */
3504 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3505 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3507 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3508 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3510 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3511 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3514 fitness = check_expectations(present_attrs, out_of_range_attr,
3515 expected_attrs, key, key_len);
3518 * Remove the TPID from dl_type since it's not the real Ethertype. */
3519 flow->dl_type = htons(0);
3520 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3521 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3524 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3525 return ODP_FIT_TOO_LITTLE;
3526 } else if (flow->vlan_tci == htons(0)) {
3527 /* Corner case for a truncated 802.1Q header. */
3528 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3529 return ODP_FIT_TOO_MUCH;
3532 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3533 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3534 "but CFI bit is not set", ntohs(flow->vlan_tci));
3535 return ODP_FIT_ERROR;
3538 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3543 /* Now parse the encapsulated attributes. */
3544 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3545 attrs, &present_attrs, &out_of_range_attr)) {
3546 return ODP_FIT_ERROR;
3550 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3551 return ODP_FIT_ERROR;
3553 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3554 expected_attrs, flow, key, key_len,
3557 /* The overall fitness is the worse of the outer and inner attributes. */
3558 return MAX(fitness, encap_fitness);
3561 static enum odp_key_fitness
3562 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3563 struct flow *flow, const struct flow *src_flow)
3565 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3566 uint64_t expected_attrs;
3567 uint64_t present_attrs;
3568 int out_of_range_attr;
3569 bool is_mask = src_flow != flow;
3571 memset(flow, 0, sizeof *flow);
3573 /* Parse attributes. */
3574 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3575 &out_of_range_attr)) {
3576 return ODP_FIT_ERROR;
3581 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3582 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3583 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3584 } else if (is_mask) {
3585 /* Always exact match recirc_id if it is not specified. */
3586 flow->recirc_id = UINT32_MAX;
3589 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3590 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3591 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3593 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3594 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3595 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3598 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3599 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3600 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3603 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3604 enum odp_key_fitness res;
3606 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3607 if (res == ODP_FIT_ERROR) {
3608 return ODP_FIT_ERROR;
3609 } else if (res == ODP_FIT_PERFECT) {
3610 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3614 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3615 flow->in_port.odp_port
3616 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3617 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3618 } else if (!is_mask) {
3619 flow->in_port.odp_port = ODPP_NONE;
3622 /* Ethernet header. */
3623 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3624 const struct ovs_key_ethernet *eth_key;
3626 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3627 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3628 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3630 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3634 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3637 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3638 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3640 return ODP_FIT_ERROR;
3644 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3645 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3646 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3647 expected_attrs, flow, key, key_len, src_flow);
3650 flow->vlan_tci = htons(0xffff);
3651 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3652 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3653 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3656 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3657 expected_attrs, flow, key, key_len, src_flow);
3660 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3661 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3662 * 'key' fits our expectations for what a flow key should contain.
3664 * The 'in_port' will be the datapath's understanding of the port. The
3665 * caller will need to translate with odp_port_to_ofp_port() if the
3666 * OpenFlow port is needed.
3668 * This function doesn't take the packet itself as an argument because none of
3669 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3670 * it is always possible to infer which additional attribute(s) should appear
3671 * by looking at the attributes for lower-level protocols, e.g. if the network
3672 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3673 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3674 * must be absent. */
3675 enum odp_key_fitness
3676 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3679 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3682 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3683 * structure in 'mask'. 'flow' must be a previously translated flow
3684 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3685 * 'key' fits our expectations for what a flow key should contain. */
3686 enum odp_key_fitness
3687 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3688 struct flow *mask, const struct flow *flow)
3690 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3693 /* Returns 'fitness' as a string, for use in debug messages. */
3695 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3698 case ODP_FIT_PERFECT:
3700 case ODP_FIT_TOO_MUCH:
3702 case ODP_FIT_TOO_LITTLE:
3703 return "too_little";
3711 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3712 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3713 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3714 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3715 * null, then the return value is not meaningful.) */
3717 odp_put_userspace_action(uint32_t pid,
3718 const void *userdata, size_t userdata_size,
3719 odp_port_t tunnel_out_port,
3720 struct ofpbuf *odp_actions)
3722 size_t userdata_ofs;
3725 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3726 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3728 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3730 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3731 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3734 * - The kernel rejected shorter userdata with -ERANGE.
3736 * - The kernel silently dropped userdata beyond the first 8 bytes.
3738 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3739 * separately disable features that required more than 8 bytes.) */
3740 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3741 MAX(8, userdata_size)),
3742 userdata, userdata_size);
3746 if (tunnel_out_port != ODPP_NONE) {
3747 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
3750 nl_msg_end_nested(odp_actions, offset);
3752 return userdata_ofs;
3756 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3757 struct ofpbuf *odp_actions)
3759 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3760 tun_key_to_attr(odp_actions, tunnel);
3761 nl_msg_end_nested(odp_actions, offset);
3764 /* The commit_odp_actions() function and its helpers. */
3767 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3768 const void *key, size_t key_size)
3770 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3771 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3772 nl_msg_end_nested(odp_actions, offset);
3775 /* Masked set actions have a mask following the data within the netlink
3776 * attribute. The unmasked bits in the data will be cleared as the data
3777 * is copied to the action. */
3779 commit_masked_set_action(struct ofpbuf *odp_actions,
3780 enum ovs_key_attr key_type,
3781 const void *key_, const void *mask_, size_t key_size)
3783 size_t offset = nl_msg_start_nested(odp_actions,
3784 OVS_ACTION_ATTR_SET_MASKED);
3785 char *data = nl_msg_put_unspec_uninit(odp_actions, key_type, key_size * 2);
3786 const char *key = key_, *mask = mask_;
3788 memcpy(data + key_size, mask, key_size);
3789 /* Clear unmasked bits while copying. */
3790 while (key_size--) {
3791 *data++ = *key++ & *mask++;
3793 nl_msg_end_nested(odp_actions, offset);
3797 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3798 struct ofpbuf *odp_actions)
3800 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3804 /* If any of the flow key data that ODP actions can modify are different in
3805 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3806 * 'odp_actions' that change the flow tunneling information in key from
3807 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3808 * same way. In other words, operates the same as commit_odp_actions(), but
3809 * only on tunneling information. */
3811 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3812 struct ofpbuf *odp_actions)
3814 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3815 if (flow->tunnel.ip_dst) {
3816 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3819 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3820 odp_put_tunnel_action(&base->tunnel, odp_actions);
3825 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3826 struct ofpbuf *odp_actions,
3827 struct flow_wildcards *wc)
3829 struct ovs_key_ethernet eth_key;
3831 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3832 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3836 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3837 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3839 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3840 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3842 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3843 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3845 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3846 ð_key, sizeof(eth_key));
3850 pop_vlan(struct flow *base,
3851 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3853 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3855 if (base->vlan_tci & htons(VLAN_CFI)) {
3856 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3862 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3863 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3865 if (base->vlan_tci == vlan_tci) {
3869 pop_vlan(base, odp_actions, wc);
3870 if (vlan_tci & htons(VLAN_CFI)) {
3871 struct ovs_action_push_vlan vlan;
3873 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3874 vlan.vlan_tci = vlan_tci;
3875 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3876 &vlan, sizeof vlan);
3878 base->vlan_tci = vlan_tci;
3882 commit_mpls_action(const struct flow *flow, struct flow *base,
3883 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3885 int base_n = flow_count_mpls_labels(base, wc);
3886 int flow_n = flow_count_mpls_labels(flow, wc);
3887 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3890 while (base_n > common_n) {
3891 if (base_n - 1 == common_n && flow_n > common_n) {
3892 /* If there is only one more LSE in base than there are common
3893 * between base and flow; and flow has at least one more LSE than
3894 * is common then the topmost LSE of base may be updated using
3896 struct ovs_key_mpls mpls_key;
3898 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3899 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3900 &mpls_key, sizeof mpls_key);
3901 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3904 /* Otherwise, if there more LSEs in base than are common between
3905 * base and flow then pop the topmost one. */
3909 /* If all the LSEs are to be popped and this is not the outermost
3910 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3911 * POP_MPLS action instead of flow->dl_type.
3913 * This is because the POP_MPLS action requires its ethertype
3914 * argument to be an MPLS ethernet type but in this case
3915 * flow->dl_type will be a non-MPLS ethernet type.
3917 * When the final POP_MPLS action occurs it use flow->dl_type and
3918 * the and the resulting packet will have the desired dl_type. */
3919 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3920 dl_type = htons(ETH_TYPE_MPLS);
3922 dl_type = flow->dl_type;
3924 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3925 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3931 /* If, after the above popping and setting, there are more LSEs in flow
3932 * than base then some LSEs need to be pushed. */
3933 while (base_n < flow_n) {
3934 struct ovs_action_push_mpls *mpls;
3936 mpls = nl_msg_put_unspec_zero(odp_actions,
3937 OVS_ACTION_ATTR_PUSH_MPLS,
3939 mpls->mpls_ethertype = flow->dl_type;
3940 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3941 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3942 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3948 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3949 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3951 struct ovs_key_ipv4 ipv4_key;
3953 if (base->nw_src == flow->nw_src &&
3954 base->nw_dst == flow->nw_dst &&
3955 base->nw_tos == flow->nw_tos &&
3956 base->nw_ttl == flow->nw_ttl &&
3957 base->nw_frag == flow->nw_frag) {
3961 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3962 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3963 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3964 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3965 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3966 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3968 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3969 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3970 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3971 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3972 ipv4_key.ipv4_proto = base->nw_proto;
3973 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3975 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3976 &ipv4_key, sizeof(ipv4_key));
3980 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3981 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3983 struct ovs_key_ipv6 ipv6_key;
3985 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3986 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3987 base->ipv6_label == flow->ipv6_label &&
3988 base->nw_tos == flow->nw_tos &&
3989 base->nw_ttl == flow->nw_ttl &&
3990 base->nw_frag == flow->nw_frag) {
3994 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3995 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3996 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3997 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3998 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3999 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
4000 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
4002 base->ipv6_src = flow->ipv6_src;
4003 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
4004 base->ipv6_dst = flow->ipv6_dst;
4005 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
4007 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
4008 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
4009 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
4010 ipv6_key.ipv6_proto = base->nw_proto;
4011 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
4013 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
4014 &ipv6_key, sizeof(ipv6_key));
4017 static enum slow_path_reason
4018 commit_set_arp_action(const struct flow *flow, struct flow *base,
4019 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4021 struct ovs_key_arp arp_key;
4023 if (base->nw_src == flow->nw_src &&
4024 base->nw_dst == flow->nw_dst &&
4025 base->nw_proto == flow->nw_proto &&
4026 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
4027 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
4031 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
4032 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
4033 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
4034 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
4035 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
4037 base->nw_src = flow->nw_src;
4038 base->nw_dst = flow->nw_dst;
4039 base->nw_proto = flow->nw_proto;
4040 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
4041 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
4043 arp_key.arp_sip = base->nw_src;
4044 arp_key.arp_tip = base->nw_dst;
4045 arp_key.arp_op = htons(base->nw_proto);
4046 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
4047 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
4049 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
4054 static enum slow_path_reason
4055 commit_set_nw_action(const struct flow *flow, struct flow *base,
4056 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4058 /* Check if 'flow' really has an L3 header. */
4059 if (!flow->nw_proto) {
4063 switch (ntohs(base->dl_type)) {
4065 commit_set_ipv4_action(flow, base, odp_actions, wc);
4069 commit_set_ipv6_action(flow, base, odp_actions, wc);
4073 return commit_set_arp_action(flow, base, odp_actions, wc);
4080 commit_set_port_action(const struct flow *flow, struct flow *base,
4081 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4083 /* Check if 'flow' really has an L3 header. */
4084 if (!flow->nw_proto) {
4088 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
4092 if (base->tp_src == flow->tp_src &&
4093 base->tp_dst == flow->tp_dst) {
4097 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
4098 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
4100 if (flow->nw_proto == IPPROTO_TCP) {
4101 struct ovs_key_tcp port_key;
4103 port_key.tcp_src = base->tp_src = flow->tp_src;
4104 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
4106 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
4107 &port_key, sizeof(port_key));
4109 } else if (flow->nw_proto == IPPROTO_UDP) {
4110 struct ovs_key_udp port_key;
4112 port_key.udp_src = base->tp_src = flow->tp_src;
4113 port_key.udp_dst = base->tp_dst = flow->tp_dst;
4115 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
4116 &port_key, sizeof(port_key));
4117 } else if (flow->nw_proto == IPPROTO_SCTP) {
4118 struct ovs_key_sctp port_key;
4120 port_key.sctp_src = base->tp_src = flow->tp_src;
4121 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
4123 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
4124 &port_key, sizeof(port_key));
4129 commit_set_priority_action(const struct flow *flow, struct flow *base,
4130 struct ofpbuf *odp_actions,
4131 struct flow_wildcards *wc)
4133 if (base->skb_priority == flow->skb_priority) {
4137 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
4138 base->skb_priority = flow->skb_priority;
4140 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
4141 &base->skb_priority, sizeof(base->skb_priority));
4145 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
4146 struct ofpbuf *odp_actions,
4147 struct flow_wildcards *wc)
4149 if (base->pkt_mark == flow->pkt_mark) {
4153 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
4154 base->pkt_mark = flow->pkt_mark;
4156 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
4159 /* If any of the flow key data that ODP actions can modify are different in
4160 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
4161 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
4162 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
4163 * in addition to this function if needed. Sets fields in 'wc' that are
4164 * used as part of the action.
4166 * Returns a reason to force processing the flow's packets into the userspace
4167 * slow path, if there is one, otherwise 0. */
4168 enum slow_path_reason
4169 commit_odp_actions(const struct flow *flow, struct flow *base,
4170 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4172 enum slow_path_reason slow;
4174 commit_set_ether_addr_action(flow, base, odp_actions, wc);
4175 slow = commit_set_nw_action(flow, base, odp_actions, wc);
4176 commit_set_port_action(flow, base, odp_actions, wc);
4177 commit_mpls_action(flow, base, odp_actions, wc);
4178 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
4179 commit_set_priority_action(flow, base, odp_actions, wc);
4180 commit_set_pkt_mark_action(flow, base, odp_actions, wc);