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),
220 while (s[n] != ')') {
221 unsigned long long int flags;
225 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
226 n += n0 + (s[n + n0] == ',');
231 for (bit = 1; bit; bit <<= 1) {
232 const char *name = bit_to_string(bit);
240 if (!strncmp(s + n, name, len) &&
241 (s[n + len] == ',' || s[n + len] == ')')) {
243 n += len + (s[n + len] == ',');
259 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
261 static const struct nl_policy ovs_userspace_policy[] = {
262 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
263 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
265 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
268 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
269 const struct nlattr *userdata_attr;
270 const struct nlattr *tunnel_out_port_attr;
272 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
273 ds_put_cstr(ds, "userspace(error)");
277 ds_put_format(ds, "userspace(pid=%"PRIu32,
278 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
280 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
283 const uint8_t *userdata = nl_attr_get(userdata_attr);
284 size_t userdata_len = nl_attr_get_size(userdata_attr);
285 bool userdata_unspec = true;
286 union user_action_cookie cookie;
288 if (userdata_len >= sizeof cookie.type
289 && userdata_len <= sizeof cookie) {
291 memset(&cookie, 0, sizeof cookie);
292 memcpy(&cookie, userdata, userdata_len);
294 userdata_unspec = false;
296 if (userdata_len == sizeof cookie.sflow
297 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
298 ds_put_format(ds, ",sFlow("
299 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
300 vlan_tci_to_vid(cookie.sflow.vlan_tci),
301 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
302 cookie.sflow.output);
303 } else if (userdata_len == sizeof cookie.slow_path
304 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
305 ds_put_cstr(ds, ",slow_path(");
306 format_flags(ds, slow_path_reason_to_string,
307 cookie.slow_path.reason, ',');
308 ds_put_format(ds, ")");
309 } else if (userdata_len == sizeof cookie.flow_sample
310 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
311 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
312 ",collector_set_id=%"PRIu32
313 ",obs_domain_id=%"PRIu32
314 ",obs_point_id=%"PRIu32")",
315 cookie.flow_sample.probability,
316 cookie.flow_sample.collector_set_id,
317 cookie.flow_sample.obs_domain_id,
318 cookie.flow_sample.obs_point_id);
319 } else if (userdata_len >= sizeof cookie.ipfix
320 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
321 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
322 cookie.ipfix.output_odp_port);
324 userdata_unspec = true;
328 if (userdata_unspec) {
330 ds_put_format(ds, ",userdata(");
331 for (i = 0; i < userdata_len; i++) {
332 ds_put_format(ds, "%02x", userdata[i]);
334 ds_put_char(ds, ')');
338 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
339 if (tunnel_out_port_attr) {
340 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
341 nl_attr_get_u32(tunnel_out_port_attr));
344 ds_put_char(ds, ')');
348 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
350 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
351 vlan_tci_to_vid(vlan_tci),
352 vlan_tci_to_pcp(vlan_tci));
353 if (!(vlan_tci & htons(VLAN_CFI))) {
354 ds_put_cstr(ds, ",cfi=0");
359 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
361 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
362 mpls_lse_to_label(mpls_lse),
363 mpls_lse_to_tc(mpls_lse),
364 mpls_lse_to_ttl(mpls_lse),
365 mpls_lse_to_bos(mpls_lse));
369 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
370 const struct ovs_key_mpls *mpls_mask, int n)
373 ovs_be32 key = mpls_key->mpls_lse;
375 if (mpls_mask == NULL) {
376 format_mpls_lse(ds, key);
378 ovs_be32 mask = mpls_mask->mpls_lse;
380 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
381 mpls_lse_to_label(key), mpls_lse_to_label(mask),
382 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
383 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
384 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
389 for (i = 0; i < n; i++) {
390 ds_put_format(ds, "lse%d=%#"PRIx32,
391 i, ntohl(mpls_key[i].mpls_lse));
393 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
395 ds_put_char(ds, ',');
402 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
404 ds_put_format(ds, "recirc(%"PRIu32")", recirc_id);
408 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
410 ds_put_format(ds, "hash(");
412 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
413 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
415 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
418 ds_put_format(ds, ")");
422 format_odp_action(struct ds *ds, const struct nlattr *a)
425 enum ovs_action_attr type = nl_attr_type(a);
426 const struct ovs_action_push_vlan *vlan;
429 expected_len = odp_action_len(nl_attr_type(a));
430 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
431 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
432 nl_attr_get_size(a), expected_len);
433 format_generic_odp_action(ds, a);
438 case OVS_ACTION_ATTR_OUTPUT:
439 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
441 case OVS_ACTION_ATTR_USERSPACE:
442 format_odp_userspace_action(ds, a);
444 case OVS_ACTION_ATTR_RECIRC:
445 format_odp_recirc_action(ds, nl_attr_get_u32(a));
447 case OVS_ACTION_ATTR_HASH:
448 format_odp_hash_action(ds, nl_attr_get(a));
450 case OVS_ACTION_ATTR_SET_MASKED:
452 size = nl_attr_get_size(a) / 2;
453 ds_put_cstr(ds, "set(");
455 /* Masked set action not supported for tunnel key, which is bigger. */
456 if (size <= sizeof(struct ovs_key_ipv6)) {
457 struct nlattr attr[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
458 sizeof(struct nlattr))];
459 struct nlattr mask[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
460 sizeof(struct nlattr))];
462 mask->nla_type = attr->nla_type = nl_attr_type(a);
463 mask->nla_len = attr->nla_len = NLA_HDRLEN + size;
464 memcpy(attr + 1, (char *)(a + 1), size);
465 memcpy(mask + 1, (char *)(a + 1) + size, size);
466 format_odp_key_attr(attr, mask, NULL, ds, true);
468 format_odp_key_attr(a, NULL, NULL, ds, true);
470 ds_put_cstr(ds, ")");
472 case OVS_ACTION_ATTR_SET:
473 ds_put_cstr(ds, "set(");
474 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
475 ds_put_cstr(ds, ")");
477 case OVS_ACTION_ATTR_PUSH_VLAN:
478 vlan = nl_attr_get(a);
479 ds_put_cstr(ds, "push_vlan(");
480 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
481 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
483 format_vlan_tci(ds, vlan->vlan_tci);
484 ds_put_char(ds, ')');
486 case OVS_ACTION_ATTR_POP_VLAN:
487 ds_put_cstr(ds, "pop_vlan");
489 case OVS_ACTION_ATTR_PUSH_MPLS: {
490 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
491 ds_put_cstr(ds, "push_mpls(");
492 format_mpls_lse(ds, mpls->mpls_lse);
493 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
496 case OVS_ACTION_ATTR_POP_MPLS: {
497 ovs_be16 ethertype = nl_attr_get_be16(a);
498 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
501 case OVS_ACTION_ATTR_SAMPLE:
502 format_odp_sample_action(ds, a);
504 case OVS_ACTION_ATTR_UNSPEC:
505 case __OVS_ACTION_ATTR_MAX:
507 format_generic_odp_action(ds, a);
513 format_odp_actions(struct ds *ds, const struct nlattr *actions,
517 const struct nlattr *a;
520 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
522 ds_put_char(ds, ',');
524 format_odp_action(ds, a);
529 if (left == actions_len) {
530 ds_put_cstr(ds, "<empty>");
532 ds_put_format(ds, ",***%u leftover bytes*** (", left);
533 for (i = 0; i < left; i++) {
534 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
536 ds_put_char(ds, ')');
539 ds_put_cstr(ds, "drop");
543 /* Separate out parse_odp_userspace_action() function. */
545 parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
548 union user_action_cookie cookie;
550 odp_port_t tunnel_out_port;
552 void *user_data = NULL;
553 size_t user_data_size = 0;
555 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
561 uint32_t probability;
562 uint32_t collector_set_id;
563 uint32_t obs_domain_id;
564 uint32_t obs_point_id;
567 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
568 "pcp=%i,output=%"SCNi32")%n",
569 &vid, &pcp, &output, &n1)) {
573 tci = vid | (pcp << VLAN_PCP_SHIFT);
578 cookie.type = USER_ACTION_COOKIE_SFLOW;
579 cookie.sflow.vlan_tci = htons(tci);
580 cookie.sflow.output = output;
582 user_data_size = sizeof cookie.sflow;
583 } else if (ovs_scan(&s[n], ",slow_path%n",
588 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
589 cookie.slow_path.unused = 0;
590 cookie.slow_path.reason = 0;
592 res = parse_flags(&s[n], slow_path_reason_to_string,
593 &cookie.slow_path.reason);
600 user_data_size = sizeof cookie.slow_path;
601 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
602 "collector_set_id=%"SCNi32","
603 "obs_domain_id=%"SCNi32","
604 "obs_point_id=%"SCNi32")%n",
605 &probability, &collector_set_id,
606 &obs_domain_id, &obs_point_id, &n1)) {
609 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
610 cookie.flow_sample.probability = probability;
611 cookie.flow_sample.collector_set_id = collector_set_id;
612 cookie.flow_sample.obs_domain_id = obs_domain_id;
613 cookie.flow_sample.obs_point_id = obs_point_id;
615 user_data_size = sizeof cookie.flow_sample;
616 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
619 cookie.type = USER_ACTION_COOKIE_IPFIX;
620 cookie.ipfix.output_odp_port = u32_to_odp(output);
622 user_data_size = sizeof cookie.ipfix;
623 } else if (ovs_scan(&s[n], ",userdata(%n",
628 ofpbuf_init(&buf, 16);
629 end = ofpbuf_put_hex(&buf, &s[n], NULL);
633 user_data = ofpbuf_data(&buf);
634 user_data_size = ofpbuf_size(&buf);
641 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
642 &tunnel_out_port, &n1)) {
643 odp_put_userspace_action(pid, user_data, user_data_size, tunnel_out_port, actions);
645 } else if (s[n] == ')') {
646 odp_put_userspace_action(pid, user_data, user_data_size, ODPP_NONE, actions);
655 parse_odp_action(const char *s, const struct simap *port_names,
656 struct ofpbuf *actions)
662 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
663 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
669 int len = strcspn(s, delimiters);
670 struct simap_node *node;
672 node = simap_find_len(port_names, s, len);
674 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
679 if (!strncmp(s, "userspace(", 10)) {
680 return parse_odp_userspace_action(s, actions);
683 if (!strncmp(s, "set(", 4)) {
686 struct nlattr mask[128 / sizeof(struct nlattr)];
687 struct ofpbuf maskbuf;
688 struct nlattr *nested, *key;
691 /* 'mask' is big enough to hold any key. */
692 ofpbuf_use_stack(&maskbuf, mask, sizeof mask);
694 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
695 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, &maskbuf);
699 if (s[retval + 4] != ')') {
703 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
706 size = nl_attr_get_size(mask);
707 if (size == nl_attr_get_size(key)) {
708 /* Change to masked set action if not fully masked. */
709 if (!is_all_ones(mask + 1, size)) {
710 key->nla_len += size;
711 ofpbuf_put(actions, mask + 1, size);
712 /* 'actions' may have been reallocated by ofpbuf_put(). */
713 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
714 nested->nla_type = OVS_ACTION_ATTR_SET_MASKED;
718 nl_msg_end_nested(actions, start_ofs);
723 struct ovs_action_push_vlan push;
724 int tpid = ETH_TYPE_VLAN;
729 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
730 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
731 &vid, &pcp, &cfi, &n)
732 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
733 &tpid, &vid, &pcp, &n)
734 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
735 &tpid, &vid, &pcp, &cfi, &n)) {
736 push.vlan_tpid = htons(tpid);
737 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
738 | (pcp << VLAN_PCP_SHIFT)
739 | (cfi ? VLAN_CFI : 0));
740 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
747 if (!strncmp(s, "pop_vlan", 8)) {
748 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
756 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
757 && percentage >= 0. && percentage <= 100.0) {
758 size_t sample_ofs, actions_ofs;
761 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
762 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
763 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
764 (probability <= 0 ? 0
765 : probability >= UINT32_MAX ? UINT32_MAX
768 actions_ofs = nl_msg_start_nested(actions,
769 OVS_SAMPLE_ATTR_ACTIONS);
773 n += strspn(s + n, delimiters);
778 retval = parse_odp_action(s + n, port_names, actions);
784 nl_msg_end_nested(actions, actions_ofs);
785 nl_msg_end_nested(actions, sample_ofs);
787 return s[n + 1] == ')' ? n + 2 : -EINVAL;
794 /* Parses the string representation of datapath actions, in the format output
795 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
796 * value. On success, the ODP actions are appended to 'actions' as a series of
797 * Netlink attributes. On failure, no data is appended to 'actions'. Either
798 * way, 'actions''s data might be reallocated. */
800 odp_actions_from_string(const char *s, const struct simap *port_names,
801 struct ofpbuf *actions)
805 if (!strcasecmp(s, "drop")) {
809 old_size = ofpbuf_size(actions);
813 s += strspn(s, delimiters);
818 retval = parse_odp_action(s, port_names, actions);
819 if (retval < 0 || !strchr(delimiters, s[retval])) {
820 ofpbuf_set_size(actions, old_size);
829 /* Returns the correct length of the payload for a flow key attribute of the
830 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
831 * is variable length. */
833 odp_flow_key_attr_len(uint16_t type)
835 if (type > OVS_KEY_ATTR_MAX) {
839 switch ((enum ovs_key_attr) type) {
840 case OVS_KEY_ATTR_ENCAP: return -2;
841 case OVS_KEY_ATTR_PRIORITY: return 4;
842 case OVS_KEY_ATTR_SKB_MARK: return 4;
843 case OVS_KEY_ATTR_DP_HASH: return 4;
844 case OVS_KEY_ATTR_RECIRC_ID: return 4;
845 case OVS_KEY_ATTR_TUNNEL: return -2;
846 case OVS_KEY_ATTR_IN_PORT: return 4;
847 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
848 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
849 case OVS_KEY_ATTR_ETHERTYPE: return 2;
850 case OVS_KEY_ATTR_MPLS: return -2;
851 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
852 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
853 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
854 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
855 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
856 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
857 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
858 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
859 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
860 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
862 case OVS_KEY_ATTR_UNSPEC:
863 case __OVS_KEY_ATTR_MAX:
871 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
873 size_t len = nl_attr_get_size(a);
875 const uint8_t *unspec;
878 unspec = nl_attr_get(a);
879 for (i = 0; i < len; i++) {
881 ds_put_char(ds, ' ');
883 ds_put_format(ds, "%02x", unspec[i]);
889 ovs_frag_type_to_string(enum ovs_frag_type type)
892 case OVS_FRAG_TYPE_NONE:
894 case OVS_FRAG_TYPE_FIRST:
896 case OVS_FRAG_TYPE_LATER:
898 case __OVS_FRAG_TYPE_MAX:
905 tunnel_key_attr_len(int type)
908 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
909 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
910 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
911 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
912 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
913 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
914 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
915 case OVS_TUNNEL_KEY_ATTR_TP_SRC: return 2;
916 case OVS_TUNNEL_KEY_ATTR_TP_DST: return 2;
917 case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
918 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
919 case __OVS_TUNNEL_KEY_ATTR_MAX:
925 #define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
927 parse_geneve_opts(const struct nlattr *attr)
929 int opts_len = nl_attr_get_size(attr);
930 const struct geneve_opt *opt = nl_attr_get(attr);
932 while (opts_len > 0) {
935 if (opts_len < sizeof(*opt)) {
939 len = sizeof(*opt) + opt->length * 4;
940 if (len > opts_len) {
944 switch (GENEVE_OPT(opt->opt_class, opt->type)) {
946 if (opt->type & GENEVE_CRIT_OPT_TYPE) {
951 opt = opt + len / sizeof(*opt);
959 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
962 const struct nlattr *a;
964 bool unknown = false;
966 NL_NESTED_FOR_EACH(a, left, attr) {
967 uint16_t type = nl_attr_type(a);
968 size_t len = nl_attr_get_size(a);
969 int expected_len = tunnel_key_attr_len(type);
971 if (len != expected_len && expected_len >= 0) {
972 return ODP_FIT_ERROR;
976 case OVS_TUNNEL_KEY_ATTR_ID:
977 tun->tun_id = nl_attr_get_be64(a);
978 tun->flags |= FLOW_TNL_F_KEY;
980 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
981 tun->ip_src = nl_attr_get_be32(a);
983 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
984 tun->ip_dst = nl_attr_get_be32(a);
986 case OVS_TUNNEL_KEY_ATTR_TOS:
987 tun->ip_tos = nl_attr_get_u8(a);
989 case OVS_TUNNEL_KEY_ATTR_TTL:
990 tun->ip_ttl = nl_attr_get_u8(a);
993 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
994 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
996 case OVS_TUNNEL_KEY_ATTR_CSUM:
997 tun->flags |= FLOW_TNL_F_CSUM;
999 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
1000 tun->tp_src = nl_attr_get_be16(a);
1002 case OVS_TUNNEL_KEY_ATTR_TP_DST:
1003 tun->tp_dst = nl_attr_get_be16(a);
1005 case OVS_TUNNEL_KEY_ATTR_OAM:
1006 tun->flags |= FLOW_TNL_F_OAM;
1008 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
1009 if (parse_geneve_opts(a)) {
1010 return ODP_FIT_ERROR;
1012 /* It is necessary to reproduce options exactly (including order)
1013 * so it's easiest to just echo them back. */
1018 /* Allow this to show up as unexpected, if there are unknown
1019 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1026 return ODP_FIT_ERROR;
1029 return ODP_FIT_TOO_MUCH;
1031 return ODP_FIT_PERFECT;
1035 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
1039 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
1041 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1042 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
1043 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
1045 if (tun_key->ip_src) {
1046 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1048 if (tun_key->ip_dst) {
1049 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1051 if (tun_key->ip_tos) {
1052 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1054 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1055 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1056 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1058 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1059 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1061 if (tun_key->tp_src) {
1062 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1064 if (tun_key->tp_dst) {
1065 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1067 if (tun_key->flags & FLOW_TNL_F_OAM) {
1068 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1071 nl_msg_end_nested(a, tun_key_ofs);
1075 odp_mask_attr_is_wildcard(const struct nlattr *ma)
1077 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1081 odp_mask_attr_is_exact(const struct nlattr *ma)
1084 enum ovs_key_attr attr = nl_attr_type(ma);
1086 if (attr == OVS_KEY_ATTR_TCP_FLAGS) {
1087 is_exact = TCP_FLAGS_BE16(nl_attr_get_be16(ma)) == htons(0x0fff);
1088 } else if (attr == OVS_KEY_ATTR_IPV6) {
1089 const struct ovs_key_ipv6 *mask = nl_attr_get(ma);
1092 (mask->ipv6_label & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK)
1093 && mask->ipv6_proto == UINT8_MAX
1094 && mask->ipv6_tclass == UINT8_MAX
1095 && mask->ipv6_hlimit == UINT8_MAX
1096 && mask->ipv6_frag == UINT8_MAX
1097 && ipv6_mask_is_exact((const struct in6_addr *)mask->ipv6_src)
1098 && ipv6_mask_is_exact((const struct in6_addr *)mask->ipv6_dst);
1099 } else if (attr == OVS_KEY_ATTR_TUNNEL) {
1100 struct flow_tnl tun_mask;
1102 memset(&tun_mask, 0, sizeof tun_mask);
1103 odp_tun_key_from_attr(ma, &tun_mask);
1104 is_exact = tun_mask.flags == (FLOW_TNL_F_KEY
1105 | FLOW_TNL_F_DONT_FRAGMENT
1108 && tun_mask.tun_id == OVS_BE64_MAX
1109 && tun_mask.ip_src == OVS_BE32_MAX
1110 && tun_mask.ip_dst == OVS_BE32_MAX
1111 && tun_mask.ip_tos == UINT8_MAX
1112 && tun_mask.ip_ttl == UINT8_MAX
1113 && tun_mask.tp_src == OVS_BE16_MAX
1114 && tun_mask.tp_dst == OVS_BE16_MAX;
1116 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
1123 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1126 struct odp_portno_names *odp_portno_names;
1128 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1129 odp_portno_names->port_no = port_no;
1130 odp_portno_names->name = xstrdup(port_name);
1131 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1132 hash_odp_port(port_no));
1136 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1138 struct odp_portno_names *odp_portno_names;
1140 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1141 hash_odp_port(port_no), portno_names) {
1142 if (odp_portno_names->port_no == port_no) {
1143 return odp_portno_names->name;
1150 odp_portno_names_destroy(struct hmap *portno_names)
1152 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1153 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1154 hmap_node, portno_names) {
1155 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1156 free(odp_portno_names->name);
1157 free(odp_portno_names);
1162 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
1163 const struct hmap *portno_names, struct ds *ds,
1166 struct flow_tnl tun_key;
1167 enum ovs_key_attr attr = nl_attr_type(a);
1168 char namebuf[OVS_KEY_ATTR_BUFSIZE];
1172 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
1174 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
1177 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1178 if (expected_len != -2) {
1179 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1180 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1182 if (bad_key_len || bad_mask_len) {
1184 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1185 nl_attr_get_size(a), expected_len);
1187 format_generic_odp_key(a, ds);
1189 ds_put_char(ds, '/');
1191 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1192 nl_attr_get_size(ma), expected_len);
1194 format_generic_odp_key(ma, ds);
1196 ds_put_char(ds, ')');
1202 ds_put_char(ds, '(');
1204 case OVS_KEY_ATTR_ENCAP:
1205 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1206 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1207 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1209 } else if (nl_attr_get_size(a)) {
1210 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1215 case OVS_KEY_ATTR_PRIORITY:
1216 case OVS_KEY_ATTR_SKB_MARK:
1217 case OVS_KEY_ATTR_DP_HASH:
1218 case OVS_KEY_ATTR_RECIRC_ID:
1219 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1221 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1225 case OVS_KEY_ATTR_TUNNEL:
1226 memset(&tun_key, 0, sizeof tun_key);
1227 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1228 ds_put_format(ds, "error");
1229 } else if (!is_exact) {
1230 struct flow_tnl tun_mask;
1232 memset(&tun_mask, 0, sizeof tun_mask);
1233 odp_tun_key_from_attr(ma, &tun_mask);
1234 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1235 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1236 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1238 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1239 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1240 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1241 tun_key.ip_tos, tun_mask.ip_tos,
1242 tun_key.ip_ttl, tun_mask.ip_ttl);
1244 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1246 /* XXX This code is correct, but enabling it would break the unit
1247 test. Disable it for now until the input parser is fixed.
1249 ds_put_char(ds, '/');
1250 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1252 ds_put_char(ds, ')');
1254 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1255 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1256 ntohll(tun_key.tun_id),
1257 IP_ARGS(tun_key.ip_src),
1258 IP_ARGS(tun_key.ip_dst),
1259 tun_key.ip_tos, tun_key.ip_ttl);
1261 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1262 ds_put_char(ds, ')');
1266 case OVS_KEY_ATTR_IN_PORT:
1267 if (portno_names && verbose && is_exact) {
1268 char *name = odp_portno_names_get(portno_names,
1269 u32_to_odp(nl_attr_get_u32(a)));
1271 ds_put_format(ds, "%s", name);
1273 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1276 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1278 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1283 case OVS_KEY_ATTR_ETHERNET:
1285 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1286 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1288 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1289 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1290 ETH_ADDR_ARGS(eth_key->eth_src),
1291 ETH_ADDR_ARGS(eth_mask->eth_src),
1292 ETH_ADDR_ARGS(eth_key->eth_dst),
1293 ETH_ADDR_ARGS(eth_mask->eth_dst));
1295 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1297 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1298 ETH_ADDR_ARGS(eth_key->eth_src),
1299 ETH_ADDR_ARGS(eth_key->eth_dst));
1303 case OVS_KEY_ATTR_VLAN:
1305 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1307 ovs_be16 mask = nl_attr_get_be16(ma);
1308 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1309 vlan_tci_to_vid(vlan_tci),
1310 vlan_tci_to_vid(mask),
1311 vlan_tci_to_pcp(vlan_tci),
1312 vlan_tci_to_pcp(mask),
1313 vlan_tci_to_cfi(vlan_tci),
1314 vlan_tci_to_cfi(mask));
1316 format_vlan_tci(ds, vlan_tci);
1321 case OVS_KEY_ATTR_MPLS: {
1322 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1323 const struct ovs_key_mpls *mpls_mask = NULL;
1324 size_t size = nl_attr_get_size(a);
1326 if (!size || size % sizeof *mpls_key) {
1327 ds_put_format(ds, "(bad key length %"PRIuSIZE")", size);
1331 mpls_mask = nl_attr_get(ma);
1332 if (size != nl_attr_get_size(ma)) {
1333 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1334 "mask length %"PRIuSIZE")",
1335 size, nl_attr_get_size(ma));
1339 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1343 case OVS_KEY_ATTR_ETHERTYPE:
1344 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1346 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1350 case OVS_KEY_ATTR_IPV4:
1352 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1353 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1355 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1356 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1357 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1358 IP_ARGS(ipv4_key->ipv4_src),
1359 IP_ARGS(ipv4_mask->ipv4_src),
1360 IP_ARGS(ipv4_key->ipv4_dst),
1361 IP_ARGS(ipv4_mask->ipv4_dst),
1362 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1363 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1364 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1365 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1366 ipv4_mask->ipv4_frag);
1368 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1370 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1371 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1372 IP_ARGS(ipv4_key->ipv4_src),
1373 IP_ARGS(ipv4_key->ipv4_dst),
1374 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1376 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1380 case OVS_KEY_ATTR_IPV6:
1382 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1383 char src_str[INET6_ADDRSTRLEN];
1384 char dst_str[INET6_ADDRSTRLEN];
1385 char src_mask[INET6_ADDRSTRLEN];
1386 char dst_mask[INET6_ADDRSTRLEN];
1388 ipv6_key = nl_attr_get(a);
1389 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1390 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1392 ipv6_mask = nl_attr_get(ma);
1393 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1394 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1396 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1397 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1398 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1399 src_str, src_mask, dst_str, dst_mask,
1400 ntohl(ipv6_key->ipv6_label),
1401 ntohl(ipv6_mask->ipv6_label),
1402 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1403 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1404 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1405 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1406 ipv6_mask->ipv6_frag);
1408 const struct ovs_key_ipv6 *ipv6_key;
1409 char src_str[INET6_ADDRSTRLEN];
1410 char dst_str[INET6_ADDRSTRLEN];
1412 ipv6_key = nl_attr_get(a);
1413 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1414 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1416 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1417 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1418 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1419 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1420 ipv6_key->ipv6_hlimit,
1421 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1425 case OVS_KEY_ATTR_TCP:
1427 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1428 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1430 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1431 ",dst=%"PRIu16"/%#"PRIx16,
1432 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1433 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1435 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1437 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1438 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1442 case OVS_KEY_ATTR_TCP_FLAGS:
1443 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1445 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1449 case OVS_KEY_ATTR_UDP:
1451 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1452 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1454 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1455 ",dst=%"PRIu16"/%#"PRIx16,
1456 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1457 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1459 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1461 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1462 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1466 case OVS_KEY_ATTR_SCTP:
1468 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1469 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1471 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1472 ",dst=%"PRIu16"/%#"PRIx16,
1473 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1474 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1476 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1478 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1479 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1483 case OVS_KEY_ATTR_ICMP:
1485 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1486 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1488 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1489 icmp_key->icmp_type, icmp_mask->icmp_type,
1490 icmp_key->icmp_code, icmp_mask->icmp_code);
1492 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1494 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1495 icmp_key->icmp_type, icmp_key->icmp_code);
1499 case OVS_KEY_ATTR_ICMPV6:
1501 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1502 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1504 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1505 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1506 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1508 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1510 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1511 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1515 case OVS_KEY_ATTR_ARP:
1517 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1518 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1520 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1521 ",op=%"PRIu16"/%#"PRIx16
1522 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1523 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1524 IP_ARGS(arp_key->arp_sip),
1525 IP_ARGS(arp_mask->arp_sip),
1526 IP_ARGS(arp_key->arp_tip),
1527 IP_ARGS(arp_mask->arp_tip),
1528 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1529 ETH_ADDR_ARGS(arp_key->arp_sha),
1530 ETH_ADDR_ARGS(arp_mask->arp_sha),
1531 ETH_ADDR_ARGS(arp_key->arp_tha),
1532 ETH_ADDR_ARGS(arp_mask->arp_tha));
1534 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1536 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1537 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1538 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1539 ntohs(arp_key->arp_op),
1540 ETH_ADDR_ARGS(arp_key->arp_sha),
1541 ETH_ADDR_ARGS(arp_key->arp_tha));
1545 case OVS_KEY_ATTR_ND: {
1546 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1547 char target[INET6_ADDRSTRLEN];
1549 nd_key = nl_attr_get(a);
1551 nd_mask = nl_attr_get(ma);
1554 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1555 ds_put_format(ds, "target=%s", target);
1557 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1558 ds_put_format(ds, "/%s", target);
1561 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1562 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1563 ETH_ADDR_ARGS(nd_key->nd_sll));
1565 ds_put_format(ds, "/"ETH_ADDR_FMT,
1566 ETH_ADDR_ARGS(nd_mask->nd_sll));
1569 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1570 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1571 ETH_ADDR_ARGS(nd_key->nd_tll));
1573 ds_put_format(ds, "/"ETH_ADDR_FMT,
1574 ETH_ADDR_ARGS(nd_mask->nd_tll));
1579 case OVS_KEY_ATTR_UNSPEC:
1580 case __OVS_KEY_ATTR_MAX:
1582 format_generic_odp_key(a, ds);
1584 ds_put_char(ds, '/');
1585 format_generic_odp_key(ma, ds);
1589 ds_put_char(ds, ')');
1592 static struct nlattr *
1593 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1595 const struct nlattr *a;
1597 int type = nl_attr_type(key);
1598 int size = nl_attr_get_size(key);
1600 if (odp_flow_key_attr_len(type) >=0) {
1601 nl_msg_put_unspec_zero(ofp, type, size);
1605 nested_mask = nl_msg_start_nested(ofp, type);
1606 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1607 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1609 nl_msg_end_nested(ofp, nested_mask);
1612 return ofpbuf_base(ofp);
1615 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1616 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1617 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1618 * non-null and 'verbose' is true, translates odp port number to its name. */
1620 odp_flow_format(const struct nlattr *key, size_t key_len,
1621 const struct nlattr *mask, size_t mask_len,
1622 const struct hmap *portno_names, struct ds *ds, bool verbose)
1625 const struct nlattr *a;
1627 bool has_ethtype_key = false;
1628 const struct nlattr *ma = NULL;
1630 bool first_field = true;
1632 ofpbuf_init(&ofp, 100);
1633 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1634 bool is_nested_attr;
1635 bool is_wildcard = false;
1636 int attr_type = nl_attr_type(a);
1638 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1639 has_ethtype_key = true;
1642 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1644 if (mask && mask_len) {
1645 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1646 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1649 if (verbose || !is_wildcard || is_nested_attr) {
1650 if (is_wildcard && !ma) {
1651 ma = generate_all_wildcard_mask(&ofp, a);
1654 ds_put_char(ds, ',');
1656 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1657 first_field = false;
1661 ofpbuf_uninit(&ofp);
1666 if (left == key_len) {
1667 ds_put_cstr(ds, "<empty>");
1669 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1670 for (i = 0; i < left; i++) {
1671 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1673 ds_put_char(ds, ')');
1675 if (!has_ethtype_key) {
1676 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1678 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1679 ntohs(nl_attr_get_be16(ma)));
1683 ds_put_cstr(ds, "<empty>");
1687 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1688 * OVS_KEY_ATTR_* attributes in 'key'. */
1690 odp_flow_key_format(const struct nlattr *key,
1691 size_t key_len, struct ds *ds)
1693 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1697 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1698 const uint8_t *nd_tll, struct ofpbuf *key)
1701 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1705 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1708 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1712 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1713 const uint8_t *nd_tll, struct ofpbuf *key)
1715 struct ovs_key_nd nd_key;
1717 memset(&nd_key, 0, sizeof nd_key);
1719 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1723 put_nd(&nd_key, nd_sll, nd_tll, key);
1728 put_nd_mask(int n, const char *nd_target_s,
1729 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1731 struct ovs_key_nd nd_mask;
1733 memset(&nd_mask, 0xff, sizeof nd_mask);
1735 if (strlen(nd_target_s) != 0 &&
1736 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1740 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1745 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1747 if (!strcasecmp(s, "no")) {
1748 *type = OVS_FRAG_TYPE_NONE;
1749 } else if (!strcasecmp(s, "first")) {
1750 *type = OVS_FRAG_TYPE_FIRST;
1751 } else if (!strcasecmp(s, "later")) {
1752 *type = OVS_FRAG_TYPE_LATER;
1760 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1762 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1763 (mpls_tc << MPLS_TC_SHIFT) |
1764 (mpls_ttl << MPLS_TTL_SHIFT) |
1765 (mpls_bos << MPLS_BOS_SHIFT)));
1769 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1770 struct ofpbuf *key, struct ofpbuf *mask)
1774 uint32_t priority_mask;
1777 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1778 &priority, &priority_mask, &n)) {
1779 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1780 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1782 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1783 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1785 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1796 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1798 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1799 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1801 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1802 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1804 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1814 if (ovs_scan(s, "recirc_id(%"SCNi32")%n", &recirc_id, &n)) {
1815 nl_msg_put_u32(key, OVS_KEY_ATTR_RECIRC_ID, recirc_id);
1817 nl_msg_put_u32(mask, OVS_KEY_ATTR_RECIRC_ID, UINT32_MAX);
1825 uint32_t dp_hash_mask;
1828 if (mask && ovs_scan(s, "dp_hash(%"SCNi32"/%"SCNi32")%n", &dp_hash,
1829 &dp_hash_mask, &n)) {
1830 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1831 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, dp_hash_mask);
1833 } else if (ovs_scan(s, "dp_hash(%"SCNi32")%n", &dp_hash, &n)) {
1834 nl_msg_put_u32(key, OVS_KEY_ATTR_DP_HASH, dp_hash);
1836 nl_msg_put_u32(mask, OVS_KEY_ATTR_DP_HASH, UINT32_MAX);
1843 uint64_t tun_id, tun_id_mask;
1844 struct flow_tnl tun_key, tun_key_mask;
1847 memset(&tun_key, 0, sizeof tun_key);
1848 memset(&tun_key_mask, 0, sizeof tun_key_mask);
1850 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1851 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1852 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1853 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1854 &tun_id, &tun_id_mask,
1855 IP_SCAN_ARGS(&tun_key.ip_src),
1856 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1857 IP_SCAN_ARGS(&tun_key.ip_dst),
1858 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1859 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1860 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1864 tun_key.tun_id = htonll(tun_id);
1865 tun_key_mask.tun_id = htonll(tun_id_mask);
1866 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1867 tun_key.flags = flags;
1868 tun_key_mask.flags = UINT16_MAX;
1878 tun_key_to_attr(key, &tun_key);
1880 tun_key_to_attr(mask, &tun_key_mask);
1883 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1884 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1885 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1886 IP_SCAN_ARGS(&tun_key.ip_src),
1887 IP_SCAN_ARGS(&tun_key.ip_dst),
1888 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1892 tun_key.tun_id = htonll(tun_id);
1893 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1894 tun_key.flags = flags;
1904 tun_key_to_attr(key, &tun_key);
1907 memset(&tun_key, 0xff, sizeof tun_key);
1908 tun_key_to_attr(mask, &tun_key);
1916 uint32_t in_port_mask;
1919 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1920 &in_port, &in_port_mask, &n)) {
1921 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1922 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1924 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1925 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1927 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1934 if (port_names && !strncmp(s, "in_port(", 8)) {
1936 const struct simap_node *node;
1940 name_len = strcspn(name, ")");
1941 node = simap_find_len(port_names, name, name_len);
1943 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1946 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1948 return 8 + name_len + 1;
1953 struct ovs_key_ethernet eth_key;
1954 struct ovs_key_ethernet eth_key_mask;
1957 if (mask && ovs_scan(s,
1958 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1959 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1960 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1961 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1962 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1963 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1964 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1965 ð_key, sizeof eth_key);
1966 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1967 ð_key_mask, sizeof eth_key_mask);
1969 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1970 "dst="ETH_ADDR_SCAN_FMT")%n",
1971 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1972 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1973 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1974 ð_key, sizeof eth_key);
1977 memset(ð_key, 0xff, sizeof eth_key);
1978 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1979 ð_key, sizeof eth_key);
1991 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1992 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1993 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1994 htons((vid << VLAN_VID_SHIFT) |
1995 (pcp << VLAN_PCP_SHIFT) |
1997 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1998 htons((vid_mask << VLAN_VID_SHIFT) |
1999 (pcp_mask << VLAN_PCP_SHIFT) |
2000 (1 << VLAN_CFI_SHIFT)));
2002 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
2003 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2004 htons((vid << VLAN_VID_SHIFT) |
2005 (pcp << VLAN_PCP_SHIFT) |
2008 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
2012 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
2013 &vid, &vid_mask, &pcp, &pcp_mask,
2014 &cfi, &cfi_mask, &n)) {
2015 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2016 htons((vid << VLAN_VID_SHIFT) |
2017 (pcp << VLAN_PCP_SHIFT) |
2018 (cfi ? VLAN_CFI : 0)));
2019 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
2020 htons((vid_mask << VLAN_VID_SHIFT) |
2021 (pcp_mask << VLAN_PCP_SHIFT) |
2022 (cfi_mask << VLAN_CFI_SHIFT)));
2024 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
2025 &vid, &pcp, &cfi, &n)) {
2026 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
2027 htons((vid << VLAN_VID_SHIFT) |
2028 (pcp << VLAN_PCP_SHIFT) |
2029 (cfi ? VLAN_CFI : 0)));
2031 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
2042 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
2043 ð_type, ð_type_mask, &n)) {
2044 if (eth_type != 0) {
2045 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
2047 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
2049 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
2050 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
2052 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2059 int label, tc, ttl, bos;
2060 int label_mask, tc_mask, ttl_mask, bos_mask;
2063 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
2064 "ttl=%i/%i,bos=%i/%i)%n",
2065 &label, &label_mask, &tc, &tc_mask,
2066 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
2067 struct ovs_key_mpls *mpls, *mpls_mask;
2069 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2071 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2073 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2075 mpls_mask->mpls_lse = mpls_lse_from_components(
2076 label_mask, tc_mask, ttl_mask, bos_mask);
2078 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
2079 &label, &tc, &ttl, &bos, &n)) {
2080 struct ovs_key_mpls *mpls;
2082 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
2084 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
2086 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
2088 mpls->mpls_lse = OVS_BE32_MAX;
2096 struct ovs_key_ipv4 ipv4_key;
2097 struct ovs_key_ipv4 ipv4_mask;
2100 enum ovs_frag_type ipv4_frag;
2104 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
2105 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
2106 "proto=%"SCNi8"/%"SCNi8","
2107 "tos=%"SCNi8"/%"SCNi8","
2108 "ttl=%"SCNi8"/%"SCNi8","
2109 "frag=%7[a-z]/%"SCNi8")%n",
2110 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2111 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
2112 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2113 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
2114 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
2115 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
2116 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
2117 frag, &ipv4_mask.ipv4_frag, &n)
2118 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2119 ipv4_key.ipv4_frag = ipv4_frag;
2120 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2121 &ipv4_key, sizeof ipv4_key);
2123 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2124 &ipv4_mask, sizeof ipv4_mask);
2126 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
2127 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
2129 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
2130 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
2131 &ipv4_key.ipv4_proto,
2135 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
2136 ipv4_key.ipv4_frag = ipv4_frag;
2137 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
2138 &ipv4_key, sizeof ipv4_key);
2141 memset(&ipv4_key, 0xff, sizeof ipv4_key);
2142 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
2143 &ipv4_key, sizeof ipv4_key);
2150 char ipv6_src_s[IPV6_SCAN_LEN + 1];
2151 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
2152 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
2153 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
2154 int ipv6_label, ipv6_label_mask;
2155 int ipv6_proto, ipv6_proto_mask;
2156 int ipv6_tclass, ipv6_tclass_mask;
2157 int ipv6_hlimit, ipv6_hlimit_mask;
2159 enum ovs_frag_type ipv6_frag;
2163 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
2164 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
2165 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
2166 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
2167 ipv6_src_s, ipv6_src_mask_s,
2168 ipv6_dst_s, ipv6_dst_mask_s,
2169 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
2170 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
2171 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
2172 &ipv6_frag_mask, &n)
2173 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2174 struct ovs_key_ipv6 ipv6_key;
2175 struct ovs_key_ipv6 ipv6_mask;
2177 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2178 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
2179 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
2180 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
2184 ipv6_key.ipv6_label = htonl(ipv6_label);
2185 ipv6_key.ipv6_proto = ipv6_proto;
2186 ipv6_key.ipv6_tclass = ipv6_tclass;
2187 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2188 ipv6_key.ipv6_frag = ipv6_frag;
2189 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2190 &ipv6_key, sizeof ipv6_key);
2192 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
2193 ipv6_mask.ipv6_proto = ipv6_proto_mask;
2194 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
2195 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
2196 ipv6_mask.ipv6_frag = ipv6_frag_mask;
2197 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2198 &ipv6_mask, sizeof ipv6_mask);
2200 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
2201 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
2203 ipv6_src_s, ipv6_dst_s, &ipv6_label,
2204 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
2205 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
2206 struct ovs_key_ipv6 ipv6_key;
2208 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
2209 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
2212 ipv6_key.ipv6_label = htonl(ipv6_label);
2213 ipv6_key.ipv6_proto = ipv6_proto;
2214 ipv6_key.ipv6_tclass = ipv6_tclass;
2215 ipv6_key.ipv6_hlimit = ipv6_hlimit;
2216 ipv6_key.ipv6_frag = ipv6_frag;
2217 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
2218 &ipv6_key, sizeof ipv6_key);
2221 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2222 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2223 &ipv6_key, sizeof ipv6_key);
2236 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2237 &tcp_src, &tcp_src_mask, &tcp_dst,
2238 &tcp_dst_mask, &n)) {
2239 struct ovs_key_tcp tcp_key;
2240 struct ovs_key_tcp tcp_mask;
2242 tcp_key.tcp_src = htons(tcp_src);
2243 tcp_key.tcp_dst = htons(tcp_dst);
2244 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2246 tcp_mask.tcp_src = htons(tcp_src_mask);
2247 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2248 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2249 &tcp_mask, sizeof tcp_mask);
2251 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2252 &tcp_src, &tcp_dst, &n)) {
2253 struct ovs_key_tcp tcp_key;
2255 tcp_key.tcp_src = htons(tcp_src);
2256 tcp_key.tcp_dst = htons(tcp_dst);
2257 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2260 memset(&tcp_key, 0xff, sizeof tcp_key);
2261 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2262 &tcp_key, sizeof tcp_key);
2269 uint16_t tcp_flags, tcp_flags_mask;
2272 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2273 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2274 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2275 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2277 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2278 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2280 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2294 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2295 &udp_src, &udp_src_mask,
2296 &udp_dst, &udp_dst_mask, &n)) {
2297 struct ovs_key_udp udp_key;
2298 struct ovs_key_udp udp_mask;
2300 udp_key.udp_src = htons(udp_src);
2301 udp_key.udp_dst = htons(udp_dst);
2302 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2304 udp_mask.udp_src = htons(udp_src_mask);
2305 udp_mask.udp_dst = htons(udp_dst_mask);
2306 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2307 &udp_mask, sizeof udp_mask);
2310 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2311 struct ovs_key_udp udp_key;
2313 udp_key.udp_src = htons(udp_src);
2314 udp_key.udp_dst = htons(udp_dst);
2315 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2318 memset(&udp_key, 0xff, sizeof udp_key);
2319 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2332 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2333 &sctp_src, &sctp_src_mask,
2334 &sctp_dst, &sctp_dst_mask, &n)) {
2335 struct ovs_key_sctp sctp_key;
2336 struct ovs_key_sctp sctp_mask;
2338 sctp_key.sctp_src = htons(sctp_src);
2339 sctp_key.sctp_dst = htons(sctp_dst);
2340 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2342 sctp_mask.sctp_src = htons(sctp_src_mask);
2343 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2344 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2345 &sctp_mask, sizeof sctp_mask);
2348 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2349 struct ovs_key_sctp sctp_key;
2351 sctp_key.sctp_src = htons(sctp_src);
2352 sctp_key.sctp_dst = htons(sctp_dst);
2353 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2356 memset(&sctp_key, 0xff, sizeof sctp_key);
2357 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2364 struct ovs_key_icmp icmp_key;
2365 struct ovs_key_icmp icmp_mask;
2368 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2369 "code=%"SCNi8"/%"SCNi8")%n",
2370 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2371 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2372 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2373 &icmp_key, sizeof icmp_key);
2374 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2375 &icmp_mask, sizeof icmp_mask);
2377 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2378 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2379 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2380 &icmp_key, sizeof icmp_key);
2382 memset(&icmp_key, 0xff, sizeof icmp_key);
2383 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2391 struct ovs_key_icmpv6 icmpv6_key;
2392 struct ovs_key_icmpv6 icmpv6_mask;
2395 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2396 "code=%"SCNi8"/%"SCNi8")%n",
2397 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2398 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2400 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2401 &icmpv6_key, sizeof icmpv6_key);
2402 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2403 sizeof icmpv6_mask);
2405 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2406 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2408 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2409 &icmpv6_key, sizeof icmpv6_key);
2412 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2413 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2421 struct ovs_key_arp arp_key;
2422 struct ovs_key_arp arp_mask;
2423 uint16_t arp_op, arp_op_mask;
2426 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2427 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2428 "op=%"SCNi16"/%"SCNi16","
2429 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2430 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2431 IP_SCAN_ARGS(&arp_key.arp_sip),
2432 IP_SCAN_ARGS(&arp_mask.arp_sip),
2433 IP_SCAN_ARGS(&arp_key.arp_tip),
2434 IP_SCAN_ARGS(&arp_mask.arp_tip),
2435 &arp_op, &arp_op_mask,
2436 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2437 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2438 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2439 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2440 arp_key.arp_op = htons(arp_op);
2441 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2442 arp_mask.arp_op = htons(arp_op_mask);
2443 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2444 &arp_mask, sizeof arp_mask);
2446 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2447 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2448 "tha="ETH_ADDR_SCAN_FMT")%n",
2449 IP_SCAN_ARGS(&arp_key.arp_sip),
2450 IP_SCAN_ARGS(&arp_key.arp_tip),
2452 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2453 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2454 arp_key.arp_op = htons(arp_op);
2455 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2458 memset(&arp_key, 0xff, sizeof arp_key);
2459 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2460 &arp_key, sizeof arp_key);
2467 char nd_target_s[IPV6_SCAN_LEN + 1];
2468 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2469 uint8_t nd_sll[ETH_ADDR_LEN];
2470 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2471 uint8_t nd_tll[ETH_ADDR_LEN];
2472 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2475 nd_target_mask_s[0] = 0;
2476 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2477 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2479 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2480 nd_target_s, nd_target_mask_s, &n)) {
2481 put_nd_key(n, nd_target_s, NULL, NULL, key);
2482 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2483 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2485 put_nd_key(n, nd_target_s, NULL, NULL, key);
2487 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2490 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2491 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2492 nd_target_s, nd_target_mask_s,
2493 ETH_ADDR_SCAN_ARGS(nd_sll),
2494 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2495 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2496 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2497 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2498 "sll="ETH_ADDR_SCAN_FMT")%n",
2499 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2500 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2502 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2505 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2506 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2507 nd_target_s, nd_target_mask_s,
2508 ETH_ADDR_SCAN_ARGS(nd_tll),
2509 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2510 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2511 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2512 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2513 "tll="ETH_ADDR_SCAN_FMT")%n",
2514 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2515 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2517 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2520 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2521 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2522 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2523 nd_target_s, nd_target_mask_s,
2524 ETH_ADDR_SCAN_ARGS(nd_sll),
2525 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2526 ETH_ADDR_SCAN_ARGS(nd_tll),
2527 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2529 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2530 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2531 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2532 "sll="ETH_ADDR_SCAN_FMT","
2533 "tll="ETH_ADDR_SCAN_FMT")%n",
2534 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2535 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2536 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2538 put_nd_mask(n, nd_target_mask_s,
2539 nd_sll_mask, nd_tll_mask, mask);
2548 if (!strncmp(s, "encap(", 6)) {
2549 const char *start = s;
2550 size_t encap, encap_mask = 0;
2552 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2554 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2561 s += strspn(s, ", \t\r\n");
2564 } else if (*s == ')') {
2568 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2576 nl_msg_end_nested(key, encap);
2578 nl_msg_end_nested(mask, encap_mask);
2587 /* Parses the string representation of a datapath flow key, in the
2588 * format output by odp_flow_key_format(). Returns 0 if successful,
2589 * otherwise a positive errno value. On success, the flow key is
2590 * appended to 'key' as a series of Netlink attributes. On failure, no
2591 * data is appended to 'key'. Either way, 'key''s data might be
2594 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2595 * to a port number. (Port names may be used instead of port numbers in
2598 * On success, the attributes appended to 'key' are individually syntactically
2599 * valid, but they may not be valid as a sequence. 'key' might, for example,
2600 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2602 odp_flow_from_string(const char *s, const struct simap *port_names,
2603 struct ofpbuf *key, struct ofpbuf *mask)
2605 const size_t old_size = ofpbuf_size(key);
2609 s += strspn(s, delimiters);
2614 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2616 ofpbuf_set_size(key, old_size);
2626 ovs_to_odp_frag(uint8_t nw_frag)
2628 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2629 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2630 : OVS_FRAG_TYPE_LATER);
2634 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2636 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2638 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2639 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2645 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2646 const struct flow *mask, odp_port_t odp_in_port,
2647 size_t max_mpls_depth, bool recirc, bool export_mask)
2649 struct ovs_key_ethernet *eth_key;
2651 const struct flow *data = export_mask ? mask : flow;
2653 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2655 if (flow->tunnel.ip_dst || export_mask) {
2656 tun_key_to_attr(buf, &data->tunnel);
2659 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2662 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
2663 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2666 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2667 * is not the magical value "ODPP_NONE". */
2668 if (export_mask || odp_in_port != ODPP_NONE) {
2669 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2672 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2674 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2675 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2677 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2679 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2681 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2683 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2684 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2685 if (flow->vlan_tci == htons(0)) {
2692 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2693 /* For backwards compatibility with kernels that don't support
2694 * wildcarding, the following convention is used to encode the
2695 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2698 * -------- -------- -------
2699 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2700 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2701 * <none> 0xffff Any non-Ethernet II frame (except valid
2702 * 802.3 SNAP packet with valid eth_type).
2705 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2710 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2712 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2713 struct ovs_key_ipv4 *ipv4_key;
2715 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2717 ipv4_key->ipv4_src = data->nw_src;
2718 ipv4_key->ipv4_dst = data->nw_dst;
2719 ipv4_key->ipv4_proto = data->nw_proto;
2720 ipv4_key->ipv4_tos = data->nw_tos;
2721 ipv4_key->ipv4_ttl = data->nw_ttl;
2722 ipv4_key->ipv4_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2723 : ovs_to_odp_frag(data->nw_frag);
2724 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2725 struct ovs_key_ipv6 *ipv6_key;
2727 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2729 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2730 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2731 ipv6_key->ipv6_label = data->ipv6_label;
2732 ipv6_key->ipv6_proto = data->nw_proto;
2733 ipv6_key->ipv6_tclass = data->nw_tos;
2734 ipv6_key->ipv6_hlimit = data->nw_ttl;
2735 ipv6_key->ipv6_frag = export_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2736 : ovs_to_odp_frag(data->nw_frag);
2737 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2738 flow->dl_type == htons(ETH_TYPE_RARP)) {
2739 struct ovs_key_arp *arp_key;
2741 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2743 arp_key->arp_sip = data->nw_src;
2744 arp_key->arp_tip = data->nw_dst;
2745 arp_key->arp_op = htons(data->nw_proto);
2746 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2747 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2748 } else if (eth_type_mpls(flow->dl_type)) {
2749 struct ovs_key_mpls *mpls_key;
2752 n = flow_count_mpls_labels(flow, NULL);
2753 n = MIN(n, max_mpls_depth);
2754 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2755 n * sizeof *mpls_key);
2756 for (i = 0; i < n; i++) {
2757 mpls_key[i].mpls_lse = data->mpls_lse[i];
2761 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2762 if (flow->nw_proto == IPPROTO_TCP) {
2763 struct ovs_key_tcp *tcp_key;
2765 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2767 tcp_key->tcp_src = data->tp_src;
2768 tcp_key->tcp_dst = data->tp_dst;
2770 if (data->tcp_flags) {
2771 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2773 } else if (flow->nw_proto == IPPROTO_UDP) {
2774 struct ovs_key_udp *udp_key;
2776 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2778 udp_key->udp_src = data->tp_src;
2779 udp_key->udp_dst = data->tp_dst;
2780 } else if (flow->nw_proto == IPPROTO_SCTP) {
2781 struct ovs_key_sctp *sctp_key;
2783 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2785 sctp_key->sctp_src = data->tp_src;
2786 sctp_key->sctp_dst = data->tp_dst;
2787 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2788 && flow->nw_proto == IPPROTO_ICMP) {
2789 struct ovs_key_icmp *icmp_key;
2791 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2793 icmp_key->icmp_type = ntohs(data->tp_src);
2794 icmp_key->icmp_code = ntohs(data->tp_dst);
2795 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2796 && flow->nw_proto == IPPROTO_ICMPV6) {
2797 struct ovs_key_icmpv6 *icmpv6_key;
2799 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2800 sizeof *icmpv6_key);
2801 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2802 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2804 if (flow->tp_dst == htons(0)
2805 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
2806 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
2807 && (!export_mask || (data->tp_src == htons(0xffff)
2808 && data->tp_dst == htons(0xffff)))) {
2810 struct ovs_key_nd *nd_key;
2812 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2814 memcpy(nd_key->nd_target, &data->nd_target,
2815 sizeof nd_key->nd_target);
2816 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2817 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2824 nl_msg_end_nested(buf, encap);
2828 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2829 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2830 * number rather than a datapath port number). Instead, if 'odp_in_port'
2831 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2834 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2835 * capable of being expanded to allow for that much space.
2837 * 'recirc' indicates support for recirculation fields. If this is true, then
2838 * these fields will always be serialised. */
2840 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2841 const struct flow *mask, odp_port_t odp_in_port,
2844 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
2848 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2849 * 'buf'. 'flow' is used as a template to determine how to interpret
2850 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2851 * it doesn't indicate whether the other fields should be interpreted as
2852 * ARP, IPv4, IPv6, etc.
2854 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2855 * capable of being expanded to allow for that much space.
2857 * 'recirc' indicates support for recirculation fields. If this is true, then
2858 * these fields will always be serialised. */
2860 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2861 const struct flow *flow, uint32_t odp_in_port_mask,
2862 size_t max_mpls_depth, bool recirc)
2864 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
2865 max_mpls_depth, recirc, true);
2868 /* Generate ODP flow key from the given packet metadata */
2870 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2872 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2874 if (md->tunnel.ip_dst) {
2875 tun_key_to_attr(buf, &md->tunnel);
2878 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2880 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2881 * value "ODPP_NONE". */
2882 if (md->in_port.odp_port != ODPP_NONE) {
2883 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2887 /* Generate packet metadata from the given ODP flow key. */
2889 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2890 struct pkt_metadata *md)
2892 const struct nlattr *nla;
2894 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2895 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2896 1u << OVS_KEY_ATTR_IN_PORT;
2898 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2900 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2901 uint16_t type = nl_attr_type(nla);
2902 size_t len = nl_attr_get_size(nla);
2903 int expected_len = odp_flow_key_attr_len(type);
2905 if (len != expected_len && expected_len >= 0) {
2910 case OVS_KEY_ATTR_RECIRC_ID:
2911 md->recirc_id = nl_attr_get_u32(nla);
2912 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
2914 case OVS_KEY_ATTR_DP_HASH:
2915 md->dp_hash = nl_attr_get_u32(nla);
2916 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
2918 case OVS_KEY_ATTR_PRIORITY:
2919 md->skb_priority = nl_attr_get_u32(nla);
2920 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2922 case OVS_KEY_ATTR_SKB_MARK:
2923 md->pkt_mark = nl_attr_get_u32(nla);
2924 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2926 case OVS_KEY_ATTR_TUNNEL: {
2927 enum odp_key_fitness res;
2929 res = odp_tun_key_from_attr(nla, &md->tunnel);
2930 if (res == ODP_FIT_ERROR) {
2931 memset(&md->tunnel, 0, sizeof md->tunnel);
2932 } else if (res == ODP_FIT_PERFECT) {
2933 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2937 case OVS_KEY_ATTR_IN_PORT:
2938 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2939 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2945 if (!wanted_attrs) {
2946 return; /* Have everything. */
2952 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2954 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2955 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2956 key_len / sizeof(uint32_t), 0);
2960 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2961 uint64_t attrs, int out_of_range_attr,
2962 const struct nlattr *key, size_t key_len)
2967 if (VLOG_DROP_DBG(rl)) {
2972 for (i = 0; i < 64; i++) {
2973 if (attrs & (UINT64_C(1) << i)) {
2974 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2976 ds_put_format(&s, " %s",
2977 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2980 if (out_of_range_attr) {
2981 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2984 ds_put_cstr(&s, ": ");
2985 odp_flow_key_format(key, key_len, &s);
2987 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2992 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2994 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2996 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2997 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
3001 if (odp_frag != OVS_FRAG_TYPE_NONE) {
3002 flow->nw_frag |= FLOW_NW_FRAG_ANY;
3003 if (odp_frag == OVS_FRAG_TYPE_LATER) {
3004 flow->nw_frag |= FLOW_NW_FRAG_LATER;
3011 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
3012 const struct nlattr *attrs[], uint64_t *present_attrsp,
3013 int *out_of_range_attrp)
3015 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3016 const struct nlattr *nla;
3017 uint64_t present_attrs;
3020 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
3022 *out_of_range_attrp = 0;
3023 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
3024 uint16_t type = nl_attr_type(nla);
3025 size_t len = nl_attr_get_size(nla);
3026 int expected_len = odp_flow_key_attr_len(type);
3028 if (len != expected_len && expected_len >= 0) {
3029 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3031 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
3032 "length %d", ovs_key_attr_to_string(type, namebuf,
3038 if (type > OVS_KEY_ATTR_MAX) {
3039 *out_of_range_attrp = type;
3041 if (present_attrs & (UINT64_C(1) << type)) {
3042 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3044 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
3045 ovs_key_attr_to_string(type,
3046 namebuf, sizeof namebuf));
3050 present_attrs |= UINT64_C(1) << type;
3055 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
3059 *present_attrsp = present_attrs;
3063 static enum odp_key_fitness
3064 check_expectations(uint64_t present_attrs, int out_of_range_attr,
3065 uint64_t expected_attrs,
3066 const struct nlattr *key, size_t key_len)
3068 uint64_t missing_attrs;
3069 uint64_t extra_attrs;
3071 missing_attrs = expected_attrs & ~present_attrs;
3072 if (missing_attrs) {
3073 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3074 log_odp_key_attributes(&rl, "expected but not present",
3075 missing_attrs, 0, key, key_len);
3076 return ODP_FIT_TOO_LITTLE;
3079 extra_attrs = present_attrs & ~expected_attrs;
3080 if (extra_attrs || out_of_range_attr) {
3081 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3082 log_odp_key_attributes(&rl, "present but not expected",
3083 extra_attrs, out_of_range_attr, key, key_len);
3084 return ODP_FIT_TOO_MUCH;
3087 return ODP_FIT_PERFECT;
3091 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3092 uint64_t present_attrs, uint64_t *expected_attrs,
3093 struct flow *flow, const struct flow *src_flow)
3095 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3096 bool is_mask = flow != src_flow;
3098 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
3099 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
3100 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
3101 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
3102 ntohs(flow->dl_type));
3105 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
3106 flow->dl_type != htons(0xffff)) {
3109 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
3112 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
3113 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
3114 /* See comments in odp_flow_key_from_flow__(). */
3115 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
3122 static enum odp_key_fitness
3123 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3124 uint64_t present_attrs, int out_of_range_attr,
3125 uint64_t expected_attrs, struct flow *flow,
3126 const struct nlattr *key, size_t key_len,
3127 const struct flow *src_flow)
3129 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3130 bool is_mask = src_flow != flow;
3131 const void *check_start = NULL;
3132 size_t check_len = 0;
3133 enum ovs_key_attr expected_bit = 0xff;
3135 if (eth_type_mpls(src_flow->dl_type)) {
3136 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
3137 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
3138 int n = size / sizeof(ovs_be32);
3141 if (!size || size % sizeof(ovs_be32)) {
3142 return ODP_FIT_ERROR;
3146 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3148 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
3149 return ODP_FIT_TOO_LITTLE;
3151 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
3152 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
3153 return ODP_FIT_ERROR;
3155 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
3158 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3159 flow->mpls_lse[i] = mpls_lse[i];
3161 if (n > FLOW_MAX_MPLS_LABELS) {
3162 return ODP_FIT_TOO_MUCH;
3166 /* BOS may be set only in the innermost label. */
3167 for (i = 0; i < n - 1; i++) {
3168 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3169 return ODP_FIT_ERROR;
3173 /* BOS must be set in the innermost label. */
3174 if (n < FLOW_MAX_MPLS_LABELS
3175 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3176 return ODP_FIT_TOO_LITTLE;
3181 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3183 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
3185 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
3186 const struct ovs_key_ipv4 *ipv4_key;
3188 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3189 flow->nw_src = ipv4_key->ipv4_src;
3190 flow->nw_dst = ipv4_key->ipv4_dst;
3191 flow->nw_proto = ipv4_key->ipv4_proto;
3192 flow->nw_tos = ipv4_key->ipv4_tos;
3193 flow->nw_ttl = ipv4_key->ipv4_ttl;
3195 flow->nw_frag = ipv4_key->ipv4_frag;
3196 check_start = ipv4_key;
3197 check_len = sizeof *ipv4_key;
3198 expected_bit = OVS_KEY_ATTR_IPV4;
3199 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
3200 return ODP_FIT_ERROR;
3203 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3205 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3207 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
3208 const struct ovs_key_ipv6 *ipv6_key;
3210 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3211 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
3212 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
3213 flow->ipv6_label = ipv6_key->ipv6_label;
3214 flow->nw_proto = ipv6_key->ipv6_proto;
3215 flow->nw_tos = ipv6_key->ipv6_tclass;
3216 flow->nw_ttl = ipv6_key->ipv6_hlimit;
3218 flow->nw_frag = ipv6_key->ipv6_frag;
3219 check_start = ipv6_key;
3220 check_len = sizeof *ipv6_key;
3221 expected_bit = OVS_KEY_ATTR_IPV6;
3222 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
3223 return ODP_FIT_ERROR;
3226 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3227 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3229 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3231 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
3232 const struct ovs_key_arp *arp_key;
3234 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
3235 flow->nw_src = arp_key->arp_sip;
3236 flow->nw_dst = arp_key->arp_tip;
3237 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
3238 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3239 "key", ntohs(arp_key->arp_op));
3240 return ODP_FIT_ERROR;
3242 flow->nw_proto = ntohs(arp_key->arp_op);
3243 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
3244 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
3247 check_start = arp_key;
3248 check_len = sizeof *arp_key;
3249 expected_bit = OVS_KEY_ATTR_ARP;
3255 if (check_len > 0) { /* Happens only when 'is_mask'. */
3256 if (!is_all_zeros(check_start, check_len) &&
3257 flow->dl_type != htons(0xffff)) {
3258 return ODP_FIT_ERROR;
3260 expected_attrs |= UINT64_C(1) << expected_bit;
3264 expected_bit = OVS_KEY_ATTR_UNSPEC;
3265 if (src_flow->nw_proto == IPPROTO_TCP
3266 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3267 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3268 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3270 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3272 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3273 const struct ovs_key_tcp *tcp_key;
3275 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3276 flow->tp_src = tcp_key->tcp_src;
3277 flow->tp_dst = tcp_key->tcp_dst;
3278 expected_bit = OVS_KEY_ATTR_TCP;
3280 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3281 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3282 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3284 } else if (src_flow->nw_proto == IPPROTO_UDP
3285 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3286 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3287 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3289 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3291 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3292 const struct ovs_key_udp *udp_key;
3294 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3295 flow->tp_src = udp_key->udp_src;
3296 flow->tp_dst = udp_key->udp_dst;
3297 expected_bit = OVS_KEY_ATTR_UDP;
3299 } else if (src_flow->nw_proto == IPPROTO_SCTP
3300 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3301 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3302 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3304 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3306 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3307 const struct ovs_key_sctp *sctp_key;
3309 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3310 flow->tp_src = sctp_key->sctp_src;
3311 flow->tp_dst = sctp_key->sctp_dst;
3312 expected_bit = OVS_KEY_ATTR_SCTP;
3314 } else if (src_flow->nw_proto == IPPROTO_ICMP
3315 && src_flow->dl_type == htons(ETH_TYPE_IP)
3316 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3318 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3320 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3321 const struct ovs_key_icmp *icmp_key;
3323 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3324 flow->tp_src = htons(icmp_key->icmp_type);
3325 flow->tp_dst = htons(icmp_key->icmp_code);
3326 expected_bit = OVS_KEY_ATTR_ICMP;
3328 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3329 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3330 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3332 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3334 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3335 const struct ovs_key_icmpv6 *icmpv6_key;
3337 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3338 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3339 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3340 expected_bit = OVS_KEY_ATTR_ICMPV6;
3341 if (src_flow->tp_dst == htons(0) &&
3342 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3343 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3345 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3347 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3348 const struct ovs_key_nd *nd_key;
3350 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3351 memcpy(&flow->nd_target, nd_key->nd_target,
3352 sizeof flow->nd_target);
3353 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3354 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3356 if (!is_all_zeros(nd_key, sizeof *nd_key) &&
3357 (flow->tp_src != htons(0xffff) ||
3358 flow->tp_dst != htons(0xffff))) {
3359 return ODP_FIT_ERROR;
3361 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3368 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3369 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3370 return ODP_FIT_ERROR;
3372 expected_attrs |= UINT64_C(1) << expected_bit;
3377 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3381 /* Parse 802.1Q header then encapsulated L3 attributes. */
3382 static enum odp_key_fitness
3383 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3384 uint64_t present_attrs, int out_of_range_attr,
3385 uint64_t expected_attrs, struct flow *flow,
3386 const struct nlattr *key, size_t key_len,
3387 const struct flow *src_flow)
3389 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3390 bool is_mask = src_flow != flow;
3392 const struct nlattr *encap
3393 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3394 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3395 enum odp_key_fitness encap_fitness;
3396 enum odp_key_fitness fitness;
3398 /* Calculate fitness of outer attributes. */
3400 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3401 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3403 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3404 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3406 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3407 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3410 fitness = check_expectations(present_attrs, out_of_range_attr,
3411 expected_attrs, key, key_len);
3414 * Remove the TPID from dl_type since it's not the real Ethertype. */
3415 flow->dl_type = htons(0);
3416 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3417 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3420 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3421 return ODP_FIT_TOO_LITTLE;
3422 } else if (flow->vlan_tci == htons(0)) {
3423 /* Corner case for a truncated 802.1Q header. */
3424 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3425 return ODP_FIT_TOO_MUCH;
3428 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3429 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3430 "but CFI bit is not set", ntohs(flow->vlan_tci));
3431 return ODP_FIT_ERROR;
3434 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3439 /* Now parse the encapsulated attributes. */
3440 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3441 attrs, &present_attrs, &out_of_range_attr)) {
3442 return ODP_FIT_ERROR;
3446 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3447 return ODP_FIT_ERROR;
3449 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3450 expected_attrs, flow, key, key_len,
3453 /* The overall fitness is the worse of the outer and inner attributes. */
3454 return MAX(fitness, encap_fitness);
3457 static enum odp_key_fitness
3458 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3459 struct flow *flow, const struct flow *src_flow)
3461 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3462 uint64_t expected_attrs;
3463 uint64_t present_attrs;
3464 int out_of_range_attr;
3465 bool is_mask = src_flow != flow;
3467 memset(flow, 0, sizeof *flow);
3469 /* Parse attributes. */
3470 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3471 &out_of_range_attr)) {
3472 return ODP_FIT_ERROR;
3477 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3478 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3479 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3480 } else if (is_mask) {
3481 /* Always exact match recirc_id if it is not specified. */
3482 flow->recirc_id = UINT32_MAX;
3485 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3486 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3487 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3489 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3490 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3491 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3494 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3495 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3496 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3499 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3500 enum odp_key_fitness res;
3502 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3503 if (res == ODP_FIT_ERROR) {
3504 return ODP_FIT_ERROR;
3505 } else if (res == ODP_FIT_PERFECT) {
3506 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3510 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3511 flow->in_port.odp_port
3512 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3513 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3514 } else if (!is_mask) {
3515 flow->in_port.odp_port = ODPP_NONE;
3518 /* Ethernet header. */
3519 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3520 const struct ovs_key_ethernet *eth_key;
3522 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3523 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3524 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3526 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3530 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3533 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3534 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3536 return ODP_FIT_ERROR;
3540 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3541 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3542 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3543 expected_attrs, flow, key, key_len, src_flow);
3546 flow->vlan_tci = htons(0xffff);
3547 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3548 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3549 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3552 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3553 expected_attrs, flow, key, key_len, src_flow);
3556 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3557 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3558 * 'key' fits our expectations for what a flow key should contain.
3560 * The 'in_port' will be the datapath's understanding of the port. The
3561 * caller will need to translate with odp_port_to_ofp_port() if the
3562 * OpenFlow port is needed.
3564 * This function doesn't take the packet itself as an argument because none of
3565 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3566 * it is always possible to infer which additional attribute(s) should appear
3567 * by looking at the attributes for lower-level protocols, e.g. if the network
3568 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3569 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3570 * must be absent. */
3571 enum odp_key_fitness
3572 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3575 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3578 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3579 * structure in 'mask'. 'flow' must be a previously translated flow
3580 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3581 * 'key' fits our expectations for what a flow key should contain. */
3582 enum odp_key_fitness
3583 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3584 struct flow *mask, const struct flow *flow)
3586 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3589 /* Returns 'fitness' as a string, for use in debug messages. */
3591 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3594 case ODP_FIT_PERFECT:
3596 case ODP_FIT_TOO_MUCH:
3598 case ODP_FIT_TOO_LITTLE:
3599 return "too_little";
3607 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3608 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3609 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3610 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3611 * null, then the return value is not meaningful.) */
3613 odp_put_userspace_action(uint32_t pid,
3614 const void *userdata, size_t userdata_size,
3615 odp_port_t tunnel_out_port,
3616 struct ofpbuf *odp_actions)
3618 size_t userdata_ofs;
3621 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3622 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3624 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
3626 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3627 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3630 * - The kernel rejected shorter userdata with -ERANGE.
3632 * - The kernel silently dropped userdata beyond the first 8 bytes.
3634 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3635 * separately disable features that required more than 8 bytes.) */
3636 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3637 MAX(8, userdata_size)),
3638 userdata, userdata_size);
3642 if (tunnel_out_port != ODPP_NONE) {
3643 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
3646 nl_msg_end_nested(odp_actions, offset);
3648 return userdata_ofs;
3652 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3653 struct ofpbuf *odp_actions)
3655 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3656 tun_key_to_attr(odp_actions, tunnel);
3657 nl_msg_end_nested(odp_actions, offset);
3660 /* The commit_odp_actions() function and its helpers. */
3663 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3664 const void *key, size_t key_size)
3666 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3667 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3668 nl_msg_end_nested(odp_actions, offset);
3671 /* Masked set actions have a mask following the data within the netlink
3672 * attribute. The unmasked bits in the data will be cleared as the data
3673 * is copied to the action. */
3675 commit_masked_set_action(struct ofpbuf *odp_actions,
3676 enum ovs_key_attr key_type,
3677 const void *key_, const void *mask_, size_t key_size)
3679 size_t offset = nl_msg_start_nested(odp_actions,
3680 OVS_ACTION_ATTR_SET_MASKED);
3681 char *data = nl_msg_put_unspec_uninit(odp_actions, key_type, key_size * 2);
3682 const char *key = key_, *mask = mask_;
3684 memcpy(data + key_size, mask, key_size);
3685 /* Clear unmasked bits while copying. */
3686 while (key_size--) {
3687 *data++ = *key++ & *mask++;
3689 nl_msg_end_nested(odp_actions, offset);
3693 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3694 struct ofpbuf *odp_actions)
3696 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3700 /* If any of the flow key data that ODP actions can modify are different in
3701 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3702 * 'odp_actions' that change the flow tunneling information in key from
3703 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3704 * same way. In other words, operates the same as commit_odp_actions(), but
3705 * only on tunneling information. */
3707 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3708 struct ofpbuf *odp_actions)
3710 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3711 if (flow->tunnel.ip_dst) {
3712 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3715 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3716 odp_put_tunnel_action(&base->tunnel, odp_actions);
3721 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3722 struct ofpbuf *odp_actions,
3723 struct flow_wildcards *wc)
3725 struct ovs_key_ethernet eth_key;
3727 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3728 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3732 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3733 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3735 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3736 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3738 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3739 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3741 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3742 ð_key, sizeof(eth_key));
3746 pop_vlan(struct flow *base,
3747 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3749 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3751 if (base->vlan_tci & htons(VLAN_CFI)) {
3752 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3758 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3759 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3761 if (base->vlan_tci == vlan_tci) {
3765 pop_vlan(base, odp_actions, wc);
3766 if (vlan_tci & htons(VLAN_CFI)) {
3767 struct ovs_action_push_vlan vlan;
3769 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3770 vlan.vlan_tci = vlan_tci;
3771 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3772 &vlan, sizeof vlan);
3774 base->vlan_tci = vlan_tci;
3778 commit_mpls_action(const struct flow *flow, struct flow *base,
3779 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3781 int base_n = flow_count_mpls_labels(base, wc);
3782 int flow_n = flow_count_mpls_labels(flow, wc);
3783 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3786 while (base_n > common_n) {
3787 if (base_n - 1 == common_n && flow_n > common_n) {
3788 /* If there is only one more LSE in base than there are common
3789 * between base and flow; and flow has at least one more LSE than
3790 * is common then the topmost LSE of base may be updated using
3792 struct ovs_key_mpls mpls_key;
3794 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3795 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3796 &mpls_key, sizeof mpls_key);
3797 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3800 /* Otherwise, if there more LSEs in base than are common between
3801 * base and flow then pop the topmost one. */
3805 /* If all the LSEs are to be popped and this is not the outermost
3806 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3807 * POP_MPLS action instead of flow->dl_type.
3809 * This is because the POP_MPLS action requires its ethertype
3810 * argument to be an MPLS ethernet type but in this case
3811 * flow->dl_type will be a non-MPLS ethernet type.
3813 * When the final POP_MPLS action occurs it use flow->dl_type and
3814 * the and the resulting packet will have the desired dl_type. */
3815 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3816 dl_type = htons(ETH_TYPE_MPLS);
3818 dl_type = flow->dl_type;
3820 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3821 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3827 /* If, after the above popping and setting, there are more LSEs in flow
3828 * than base then some LSEs need to be pushed. */
3829 while (base_n < flow_n) {
3830 struct ovs_action_push_mpls *mpls;
3832 mpls = nl_msg_put_unspec_zero(odp_actions,
3833 OVS_ACTION_ATTR_PUSH_MPLS,
3835 mpls->mpls_ethertype = flow->dl_type;
3836 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3837 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3838 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3844 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3845 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3847 struct ovs_key_ipv4 ipv4_key;
3849 if (base->nw_src == flow->nw_src &&
3850 base->nw_dst == flow->nw_dst &&
3851 base->nw_tos == flow->nw_tos &&
3852 base->nw_ttl == flow->nw_ttl &&
3853 base->nw_frag == flow->nw_frag) {
3857 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3858 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3859 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3860 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3861 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3862 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3864 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3865 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3866 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3867 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3868 ipv4_key.ipv4_proto = base->nw_proto;
3869 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3871 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3872 &ipv4_key, sizeof(ipv4_key));
3876 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3877 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3879 struct ovs_key_ipv6 ipv6_key;
3881 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3882 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3883 base->ipv6_label == flow->ipv6_label &&
3884 base->nw_tos == flow->nw_tos &&
3885 base->nw_ttl == flow->nw_ttl &&
3886 base->nw_frag == flow->nw_frag) {
3890 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3891 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3892 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3893 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3894 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3895 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3896 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3898 base->ipv6_src = flow->ipv6_src;
3899 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3900 base->ipv6_dst = flow->ipv6_dst;
3901 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3903 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3904 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3905 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3906 ipv6_key.ipv6_proto = base->nw_proto;
3907 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3909 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3910 &ipv6_key, sizeof(ipv6_key));
3913 static enum slow_path_reason
3914 commit_set_arp_action(const struct flow *flow, struct flow *base,
3915 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3917 struct ovs_key_arp arp_key;
3919 if (base->nw_src == flow->nw_src &&
3920 base->nw_dst == flow->nw_dst &&
3921 base->nw_proto == flow->nw_proto &&
3922 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3923 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3927 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3928 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3929 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3930 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3931 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3933 base->nw_src = flow->nw_src;
3934 base->nw_dst = flow->nw_dst;
3935 base->nw_proto = flow->nw_proto;
3936 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3937 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3939 arp_key.arp_sip = base->nw_src;
3940 arp_key.arp_tip = base->nw_dst;
3941 arp_key.arp_op = htons(base->nw_proto);
3942 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3943 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3945 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3950 static enum slow_path_reason
3951 commit_set_nw_action(const struct flow *flow, struct flow *base,
3952 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3954 /* Check if 'flow' really has an L3 header. */
3955 if (!flow->nw_proto) {
3959 switch (ntohs(base->dl_type)) {
3961 commit_set_ipv4_action(flow, base, odp_actions, wc);
3965 commit_set_ipv6_action(flow, base, odp_actions, wc);
3969 return commit_set_arp_action(flow, base, odp_actions, wc);
3976 commit_set_port_action(const struct flow *flow, struct flow *base,
3977 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3979 /* Check if 'flow' really has an L3 header. */
3980 if (!flow->nw_proto) {
3984 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3988 if (base->tp_src == flow->tp_src &&
3989 base->tp_dst == flow->tp_dst) {
3993 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3994 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3996 if (flow->nw_proto == IPPROTO_TCP) {
3997 struct ovs_key_tcp port_key;
3999 port_key.tcp_src = base->tp_src = flow->tp_src;
4000 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
4002 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
4003 &port_key, sizeof(port_key));
4005 } else if (flow->nw_proto == IPPROTO_UDP) {
4006 struct ovs_key_udp port_key;
4008 port_key.udp_src = base->tp_src = flow->tp_src;
4009 port_key.udp_dst = base->tp_dst = flow->tp_dst;
4011 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
4012 &port_key, sizeof(port_key));
4013 } else if (flow->nw_proto == IPPROTO_SCTP) {
4014 struct ovs_key_sctp port_key;
4016 port_key.sctp_src = base->tp_src = flow->tp_src;
4017 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
4019 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
4020 &port_key, sizeof(port_key));
4025 commit_set_priority_action(const struct flow *flow, struct flow *base,
4026 struct ofpbuf *odp_actions,
4027 struct flow_wildcards *wc)
4029 if (base->skb_priority == flow->skb_priority) {
4033 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
4034 base->skb_priority = flow->skb_priority;
4036 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
4037 &base->skb_priority, sizeof(base->skb_priority));
4041 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
4042 struct ofpbuf *odp_actions,
4043 struct flow_wildcards *wc)
4045 if (base->pkt_mark == flow->pkt_mark) {
4049 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
4050 base->pkt_mark = flow->pkt_mark;
4052 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
4055 /* If any of the flow key data that ODP actions can modify are different in
4056 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
4057 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
4058 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
4059 * in addition to this function if needed. Sets fields in 'wc' that are
4060 * used as part of the action.
4062 * Returns a reason to force processing the flow's packets into the userspace
4063 * slow path, if there is one, otherwise 0. */
4064 enum slow_path_reason
4065 commit_odp_actions(const struct flow *flow, struct flow *base,
4066 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4068 enum slow_path_reason slow;
4070 commit_set_ether_addr_action(flow, base, odp_actions, wc);
4071 slow = commit_set_nw_action(flow, base, odp_actions, wc);
4072 commit_set_port_action(flow, base, odp_actions, wc);
4073 commit_mpls_action(flow, base, odp_actions, wc);
4074 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
4075 commit_set_priority_action(flow, base, odp_actions, wc);
4076 commit_set_pkt_mark_action(flow, base, odp_actions, wc);