2 * Copyright (c) 2009, 2010, 2011, 2012, 2013 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"
29 #include "dynamic-string.h"
39 VLOG_DEFINE_THIS_MODULE(odp_util);
41 /* The interface between userspace and kernel uses an "OVS_*" prefix.
42 * Since this is fairly non-specific for the OVS userspace components,
43 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
44 * interactions with the datapath.
47 /* The set of characters that may separate one action or one key attribute
49 static const char *delimiters = ", \t\r\n";
51 static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
52 struct ofpbuf *, struct ofpbuf *);
53 static void format_odp_key_attr(const struct nlattr *a,
54 const struct nlattr *ma, struct ds *ds);
56 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
59 * - For an action whose argument has a fixed length, returned that
60 * nonnegative length in bytes.
62 * - For an action with a variable-length argument, returns -2.
64 * - For an invalid 'type', returns -1. */
66 odp_action_len(uint16_t type)
68 if (type > OVS_ACTION_ATTR_MAX) {
72 switch ((enum ovs_action_attr) type) {
73 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
74 case OVS_ACTION_ATTR_USERSPACE: return -2;
75 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
76 case OVS_ACTION_ATTR_POP_VLAN: return 0;
77 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
78 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
79 case OVS_ACTION_ATTR_SET: return -2;
80 case OVS_ACTION_ATTR_SAMPLE: return -2;
82 case OVS_ACTION_ATTR_UNSPEC:
83 case __OVS_ACTION_ATTR_MAX:
91 ovs_key_attr_to_string(enum ovs_key_attr attr)
93 static char unknown_attr[3 + INT_STRLEN(unsigned int) + 1];
96 case OVS_KEY_ATTR_UNSPEC: return "unspec";
97 case OVS_KEY_ATTR_ENCAP: return "encap";
98 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
99 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
100 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
101 case OVS_KEY_ATTR_IN_PORT: return "in_port";
102 case OVS_KEY_ATTR_ETHERNET: return "eth";
103 case OVS_KEY_ATTR_VLAN: return "vlan";
104 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
105 case OVS_KEY_ATTR_IPV4: return "ipv4";
106 case OVS_KEY_ATTR_IPV6: return "ipv6";
107 case OVS_KEY_ATTR_TCP: return "tcp";
108 case OVS_KEY_ATTR_UDP: return "udp";
109 case OVS_KEY_ATTR_ICMP: return "icmp";
110 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
111 case OVS_KEY_ATTR_ARP: return "arp";
112 case OVS_KEY_ATTR_ND: return "nd";
113 case OVS_KEY_ATTR_MPLS: return "mpls";
115 case __OVS_KEY_ATTR_MAX:
117 snprintf(unknown_attr, sizeof unknown_attr, "key%u",
118 (unsigned int) attr);
124 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
126 size_t len = nl_attr_get_size(a);
128 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
130 const uint8_t *unspec;
133 unspec = nl_attr_get(a);
134 for (i = 0; i < len; i++) {
135 ds_put_char(ds, i ? ' ': '(');
136 ds_put_format(ds, "%02x", unspec[i]);
138 ds_put_char(ds, ')');
143 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
145 static const struct nl_policy ovs_sample_policy[] = {
146 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
147 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
149 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
151 const struct nlattr *nla_acts;
154 ds_put_cstr(ds, "sample");
156 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
157 ds_put_cstr(ds, "(error)");
161 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
164 ds_put_format(ds, "(sample=%.1f%%,", percentage);
166 ds_put_cstr(ds, "actions(");
167 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
168 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
169 format_odp_actions(ds, nla_acts, len);
170 ds_put_format(ds, "))");
174 slow_path_reason_to_string(enum slow_path_reason reason)
183 case SLOW_CONTROLLER:
191 static enum slow_path_reason
192 string_to_slow_path_reason(const char *string)
194 enum slow_path_reason i;
196 for (i = 1; i < __SLOW_MAX; i++) {
197 if (!strcmp(string, slow_path_reason_to_string(i))) {
206 parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
217 while (s[n] != ')') {
218 unsigned long long int flags;
222 if (sscanf(&s[n], "%lli%n", &flags, &n0) > 0 && n0 > 0) {
223 n += n0 + (s[n + n0] == ',');
228 for (bit = 1; bit; bit <<= 1) {
229 const char *name = bit_to_string(bit);
237 if (!strncmp(s + n, name, len) &&
238 (s[n + len] == ',' || s[n + len] == ')')) {
240 n += len + (s[n + len] == ',');
256 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
258 static const struct nl_policy ovs_userspace_policy[] = {
259 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
260 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
263 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
264 const struct nlattr *userdata_attr;
266 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
267 ds_put_cstr(ds, "userspace(error)");
271 ds_put_format(ds, "userspace(pid=%"PRIu32,
272 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
274 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
277 const uint8_t *userdata = nl_attr_get(userdata_attr);
278 size_t userdata_len = nl_attr_get_size(userdata_attr);
279 bool userdata_unspec = true;
280 union user_action_cookie cookie;
282 if (userdata_len >= sizeof cookie.type
283 && userdata_len <= sizeof cookie) {
285 memset(&cookie, 0, sizeof cookie);
286 memcpy(&cookie, userdata, userdata_len);
288 userdata_unspec = false;
290 if (userdata_len == sizeof cookie.sflow
291 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
292 ds_put_format(ds, ",sFlow("
293 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
294 vlan_tci_to_vid(cookie.sflow.vlan_tci),
295 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
296 cookie.sflow.output);
297 } else if (userdata_len == sizeof cookie.slow_path
298 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
300 reason = slow_path_reason_to_string(cookie.slow_path.reason);
301 reason = reason ? reason : "";
302 ds_put_format(ds, ",slow_path(%s)", reason);
303 } else if (userdata_len == sizeof cookie.flow_sample
304 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
305 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
306 ",collector_set_id=%"PRIu32
307 ",obs_domain_id=%"PRIu32
308 ",obs_point_id=%"PRIu32")",
309 cookie.flow_sample.probability,
310 cookie.flow_sample.collector_set_id,
311 cookie.flow_sample.obs_domain_id,
312 cookie.flow_sample.obs_point_id);
313 } else if (userdata_len == sizeof cookie.ipfix
314 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
315 ds_put_format(ds, ",ipfix");
317 userdata_unspec = true;
321 if (userdata_unspec) {
323 ds_put_format(ds, ",userdata(");
324 for (i = 0; i < userdata_len; i++) {
325 ds_put_format(ds, "%02x", userdata[i]);
327 ds_put_char(ds, ')');
331 ds_put_char(ds, ')');
335 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
337 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
338 vlan_tci_to_vid(vlan_tci),
339 vlan_tci_to_pcp(vlan_tci));
340 if (!(vlan_tci & htons(VLAN_CFI))) {
341 ds_put_cstr(ds, ",cfi=0");
346 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
348 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
349 mpls_lse_to_label(mpls_lse),
350 mpls_lse_to_tc(mpls_lse),
351 mpls_lse_to_ttl(mpls_lse),
352 mpls_lse_to_bos(mpls_lse));
356 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
357 const struct ovs_key_mpls *mpls_mask)
359 ovs_be32 key = mpls_key->mpls_top_lse;
361 if (mpls_mask == NULL) {
362 format_mpls_lse(ds, key);
364 ovs_be32 mask = mpls_mask->mpls_top_lse;
366 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
367 mpls_lse_to_label(key), mpls_lse_to_label(mask),
368 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
369 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
370 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
375 format_odp_action(struct ds *ds, const struct nlattr *a)
378 enum ovs_action_attr type = nl_attr_type(a);
379 const struct ovs_action_push_vlan *vlan;
381 expected_len = odp_action_len(nl_attr_type(a));
382 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
383 ds_put_format(ds, "bad length %zu, expected %d for: ",
384 nl_attr_get_size(a), expected_len);
385 format_generic_odp_action(ds, a);
390 case OVS_ACTION_ATTR_OUTPUT:
391 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
393 case OVS_ACTION_ATTR_USERSPACE:
394 format_odp_userspace_action(ds, a);
396 case OVS_ACTION_ATTR_SET:
397 ds_put_cstr(ds, "set(");
398 format_odp_key_attr(nl_attr_get(a), NULL, ds);
399 ds_put_cstr(ds, ")");
401 case OVS_ACTION_ATTR_PUSH_VLAN:
402 vlan = nl_attr_get(a);
403 ds_put_cstr(ds, "push_vlan(");
404 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
405 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
407 format_vlan_tci(ds, vlan->vlan_tci);
408 ds_put_char(ds, ')');
410 case OVS_ACTION_ATTR_POP_VLAN:
411 ds_put_cstr(ds, "pop_vlan");
413 case OVS_ACTION_ATTR_PUSH_MPLS: {
414 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
415 ds_put_cstr(ds, "push_mpls(");
416 format_mpls_lse(ds, mpls->mpls_lse);
417 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
420 case OVS_ACTION_ATTR_POP_MPLS: {
421 ovs_be16 ethertype = nl_attr_get_be16(a);
422 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
425 case OVS_ACTION_ATTR_SAMPLE:
426 format_odp_sample_action(ds, a);
428 case OVS_ACTION_ATTR_UNSPEC:
429 case __OVS_ACTION_ATTR_MAX:
431 format_generic_odp_action(ds, a);
437 format_odp_actions(struct ds *ds, const struct nlattr *actions,
441 const struct nlattr *a;
444 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
446 ds_put_char(ds, ',');
448 format_odp_action(ds, a);
453 if (left == actions_len) {
454 ds_put_cstr(ds, "<empty>");
456 ds_put_format(ds, ",***%u leftover bytes*** (", left);
457 for (i = 0; i < left; i++) {
458 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
460 ds_put_char(ds, ')');
463 ds_put_cstr(ds, "drop");
468 parse_odp_action(const char *s, const struct simap *port_names,
469 struct ofpbuf *actions)
471 /* Many of the sscanf calls in this function use oversized destination
472 * fields because some sscanf() implementations truncate the range of %i
473 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
474 * value of 0x7fff. The other alternatives are to allow only a single
475 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
478 * The tun_id parser has to use an alternative approach because there is no
479 * type larger than 64 bits. */
482 unsigned long long int port;
485 if (sscanf(s, "%lli%n", &port, &n) > 0 && n > 0) {
486 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
492 int len = strcspn(s, delimiters);
493 struct simap_node *node;
495 node = simap_find_len(port_names, s, len);
497 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
503 unsigned long long int pid;
504 unsigned long long int output;
505 unsigned long long int probability;
506 unsigned long long int collector_set_id;
507 unsigned long long int obs_domain_id;
508 unsigned long long int obs_point_id;
512 if (sscanf(s, "userspace(pid=%lli)%n", &pid, &n) > 0 && n > 0) {
513 odp_put_userspace_action(pid, NULL, 0, actions);
515 } else if (sscanf(s, "userspace(pid=%lli,sFlow(vid=%i,"
516 "pcp=%i,output=%lli))%n",
517 &pid, &vid, &pcp, &output, &n) > 0 && n > 0) {
518 union user_action_cookie cookie;
521 tci = vid | (pcp << VLAN_PCP_SHIFT);
526 cookie.type = USER_ACTION_COOKIE_SFLOW;
527 cookie.sflow.vlan_tci = htons(tci);
528 cookie.sflow.output = output;
529 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
532 } else if (sscanf(s, "userspace(pid=%lli,slow_path(%n", &pid, &n) > 0
534 union user_action_cookie cookie;
537 if (s[n] == ')' && s[n + 1] == ')') {
540 } else if (sscanf(s + n, "%31[^)]))", reason) > 0) {
541 n += strlen(reason) + 2;
546 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
547 cookie.slow_path.unused = 0;
548 cookie.slow_path.reason = string_to_slow_path_reason(reason);
550 if (reason[0] && !cookie.slow_path.reason) {
554 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
557 } else if (sscanf(s, "userspace(pid=%lli,flow_sample(probability=%lli,"
558 "collector_set_id=%lli,obs_domain_id=%lli,"
559 "obs_point_id=%lli))%n",
560 &pid, &probability, &collector_set_id,
561 &obs_domain_id, &obs_point_id, &n) > 0 && n > 0) {
562 union user_action_cookie cookie;
564 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
565 cookie.flow_sample.probability = probability;
566 cookie.flow_sample.collector_set_id = collector_set_id;
567 cookie.flow_sample.obs_domain_id = obs_domain_id;
568 cookie.flow_sample.obs_point_id = obs_point_id;
569 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
572 } else if (sscanf(s, "userspace(pid=%lli,ipfix)%n", &pid, &n) > 0
574 union user_action_cookie cookie;
576 cookie.type = USER_ACTION_COOKIE_IPFIX;
577 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
580 } else if (sscanf(s, "userspace(pid=%lli,userdata(%n", &pid, &n) > 0
585 ofpbuf_init(&buf, 16);
586 end = ofpbuf_put_hex(&buf, &s[n], NULL);
587 if (end[0] == ')' && end[1] == ')') {
588 odp_put_userspace_action(pid, buf.data, buf.size, actions);
590 return (end + 2) - s;
595 if (!strncmp(s, "set(", 4)) {
599 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
600 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
604 if (s[retval + 4] != ')') {
607 nl_msg_end_nested(actions, start_ofs);
612 struct ovs_action_push_vlan push;
613 int tpid = ETH_TYPE_VLAN;
618 if ((sscanf(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n) > 0
620 || (sscanf(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
621 &vid, &pcp, &cfi, &n) > 0 && n > 0)
622 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
623 &tpid, &vid, &pcp, &n) > 0 && n > 0)
624 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
625 &tpid, &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
626 push.vlan_tpid = htons(tpid);
627 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
628 | (pcp << VLAN_PCP_SHIFT)
629 | (cfi ? VLAN_CFI : 0));
630 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
637 if (!strncmp(s, "pop_vlan", 8)) {
638 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
646 if (sscanf(s, "sample(sample=%lf%%,actions(%n", &percentage, &n) > 0
647 && percentage >= 0. && percentage <= 100.0
649 size_t sample_ofs, actions_ofs;
652 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
653 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
654 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
655 (probability <= 0 ? 0
656 : probability >= UINT32_MAX ? UINT32_MAX
659 actions_ofs = nl_msg_start_nested(actions,
660 OVS_SAMPLE_ATTR_ACTIONS);
664 n += strspn(s + n, delimiters);
669 retval = parse_odp_action(s + n, port_names, actions);
675 nl_msg_end_nested(actions, actions_ofs);
676 nl_msg_end_nested(actions, sample_ofs);
678 return s[n + 1] == ')' ? n + 2 : -EINVAL;
685 /* Parses the string representation of datapath actions, in the format output
686 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
687 * value. On success, the ODP actions are appended to 'actions' as a series of
688 * Netlink attributes. On failure, no data is appended to 'actions'. Either
689 * way, 'actions''s data might be reallocated. */
691 odp_actions_from_string(const char *s, const struct simap *port_names,
692 struct ofpbuf *actions)
696 if (!strcasecmp(s, "drop")) {
700 old_size = actions->size;
704 s += strspn(s, delimiters);
709 retval = parse_odp_action(s, port_names, actions);
710 if (retval < 0 || !strchr(delimiters, s[retval])) {
711 actions->size = old_size;
720 /* Returns the correct length of the payload for a flow key attribute of the
721 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
722 * is variable length. */
724 odp_flow_key_attr_len(uint16_t type)
726 if (type > OVS_KEY_ATTR_MAX) {
730 switch ((enum ovs_key_attr) type) {
731 case OVS_KEY_ATTR_ENCAP: return -2;
732 case OVS_KEY_ATTR_PRIORITY: return 4;
733 case OVS_KEY_ATTR_SKB_MARK: return 4;
734 case OVS_KEY_ATTR_TUNNEL: return -2;
735 case OVS_KEY_ATTR_IN_PORT: return 4;
736 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
737 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
738 case OVS_KEY_ATTR_ETHERTYPE: return 2;
739 case OVS_KEY_ATTR_MPLS: return sizeof(struct ovs_key_mpls);
740 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
741 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
742 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
743 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
744 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
745 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
746 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
747 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
749 case OVS_KEY_ATTR_UNSPEC:
750 case __OVS_KEY_ATTR_MAX:
758 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
760 size_t len = nl_attr_get_size(a);
762 const uint8_t *unspec;
765 unspec = nl_attr_get(a);
766 for (i = 0; i < len; i++) {
768 ds_put_char(ds, ' ');
770 ds_put_format(ds, "%02x", unspec[i]);
776 ovs_frag_type_to_string(enum ovs_frag_type type)
779 case OVS_FRAG_TYPE_NONE:
781 case OVS_FRAG_TYPE_FIRST:
783 case OVS_FRAG_TYPE_LATER:
785 case __OVS_FRAG_TYPE_MAX:
792 tunnel_key_attr_len(int type)
795 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
796 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
797 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
798 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
799 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
800 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
801 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
802 case __OVS_TUNNEL_KEY_ATTR_MAX:
808 static enum odp_key_fitness
809 tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
812 const struct nlattr *a;
814 bool unknown = false;
816 NL_NESTED_FOR_EACH(a, left, attr) {
817 uint16_t type = nl_attr_type(a);
818 size_t len = nl_attr_get_size(a);
819 int expected_len = tunnel_key_attr_len(type);
821 if (len != expected_len && expected_len >= 0) {
822 return ODP_FIT_ERROR;
826 case OVS_TUNNEL_KEY_ATTR_ID:
827 tun->tun_id = nl_attr_get_be64(a);
828 tun->flags |= FLOW_TNL_F_KEY;
830 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
831 tun->ip_src = nl_attr_get_be32(a);
833 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
834 tun->ip_dst = nl_attr_get_be32(a);
836 case OVS_TUNNEL_KEY_ATTR_TOS:
837 tun->ip_tos = nl_attr_get_u8(a);
839 case OVS_TUNNEL_KEY_ATTR_TTL:
840 tun->ip_ttl = nl_attr_get_u8(a);
843 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
844 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
846 case OVS_TUNNEL_KEY_ATTR_CSUM:
847 tun->flags |= FLOW_TNL_F_CSUM;
850 /* Allow this to show up as unexpected, if there are unknown
851 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
858 return ODP_FIT_ERROR;
861 return ODP_FIT_TOO_MUCH;
863 return ODP_FIT_PERFECT;
867 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
871 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
873 if (tun_key->flags & FLOW_TNL_F_KEY) {
874 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
876 if (tun_key->ip_src) {
877 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
879 if (tun_key->ip_dst) {
880 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
882 if (tun_key->ip_tos) {
883 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
885 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
886 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
887 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
889 if (tun_key->flags & FLOW_TNL_F_CSUM) {
890 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
893 nl_msg_end_nested(a, tun_key_ofs);
897 odp_mask_attr_is_exact(const struct nlattr *ma)
899 bool is_exact = false;
900 enum ovs_key_attr attr = nl_attr_type(ma);
902 if (attr == OVS_KEY_ATTR_TUNNEL) {
903 /* XXX this is a hack for now. Should change
904 * the exact match dection to per field
905 * instead of per attribute.
907 struct flow_tnl tun_mask;
908 memset(&tun_mask, 0, sizeof tun_mask);
909 tun_key_from_attr(ma, &tun_mask);
910 if (tun_mask.flags == (FLOW_TNL_F_KEY
911 | FLOW_TNL_F_DONT_FRAGMENT
912 | FLOW_TNL_F_CSUM)) {
913 /* The flags are exact match, check the remaining fields. */
914 tun_mask.flags = 0xffff;
915 is_exact = is_all_ones((uint8_t *)&tun_mask,
916 offsetof(struct flow_tnl, ip_ttl));
919 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
927 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
930 struct flow_tnl tun_key;
931 enum ovs_key_attr attr = nl_attr_type(a);
934 if (ma && odp_mask_attr_is_exact(ma)) {
938 ds_put_cstr(ds, ovs_key_attr_to_string(attr));
941 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
942 if (expected_len != -2) {
943 bool bad_key_len = nl_attr_get_size(a) != expected_len;
944 bool bad_mask_len = ma && nl_attr_get_size(a) != expected_len;
946 if (bad_key_len || bad_mask_len) {
948 ds_put_format(ds, "(bad key length %zu, expected %d)(",
950 odp_flow_key_attr_len(nl_attr_type(a)));
952 format_generic_odp_key(a, ds);
954 ds_put_char(ds, '/');
955 ds_put_format(ds, "(bad mask length %zu, expected %d)(",
956 nl_attr_get_size(ma),
957 odp_flow_key_attr_len(nl_attr_type(ma)));
959 format_generic_odp_key(ma, ds);
960 ds_put_char(ds, ')');
966 ds_put_char(ds, '(');
968 case OVS_KEY_ATTR_ENCAP:
969 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
970 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
971 nl_attr_get(ma), nl_attr_get_size(ma), ds);
972 } else if (nl_attr_get_size(a)) {
973 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, ds);
977 case OVS_KEY_ATTR_PRIORITY:
978 case OVS_KEY_ATTR_SKB_MARK:
979 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
981 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
985 case OVS_KEY_ATTR_TUNNEL:
986 memset(&tun_key, 0, sizeof tun_key);
987 if (tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
988 ds_put_format(ds, "error");
990 struct flow_tnl tun_mask;
992 memset(&tun_mask, 0, sizeof tun_mask);
993 tun_key_from_attr(ma, &tun_mask);
994 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
995 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
996 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
998 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
999 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1000 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1001 tun_key.ip_tos, tun_mask.ip_tos,
1002 tun_key.ip_ttl, tun_mask.ip_ttl);
1004 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1006 /* XXX This code is correct, but enabling it would break the unit
1007 test. Disable it for now until the input parser is fixed.
1009 ds_put_char(ds, '/');
1010 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1012 ds_put_char(ds, ')');
1014 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1015 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1016 ntohll(tun_key.tun_id),
1017 IP_ARGS(tun_key.ip_src),
1018 IP_ARGS(tun_key.ip_dst),
1019 tun_key.ip_tos, tun_key.ip_ttl);
1021 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1022 ds_put_char(ds, ')');
1026 case OVS_KEY_ATTR_IN_PORT:
1027 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1029 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1033 case OVS_KEY_ATTR_ETHERNET:
1035 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1036 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1038 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1039 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1040 ETH_ADDR_ARGS(eth_key->eth_src),
1041 ETH_ADDR_ARGS(eth_mask->eth_src),
1042 ETH_ADDR_ARGS(eth_key->eth_dst),
1043 ETH_ADDR_ARGS(eth_mask->eth_dst));
1045 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1047 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1048 ETH_ADDR_ARGS(eth_key->eth_src),
1049 ETH_ADDR_ARGS(eth_key->eth_dst));
1053 case OVS_KEY_ATTR_VLAN:
1055 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1057 ovs_be16 mask = nl_attr_get_be16(ma);
1058 ds_put_format(ds, "vid=%"PRIu16"/%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1059 vlan_tci_to_vid(vlan_tci),
1060 vlan_tci_to_vid(mask),
1061 vlan_tci_to_pcp(vlan_tci),
1062 vlan_tci_to_pcp(mask),
1063 vlan_tci_to_cfi(vlan_tci),
1064 vlan_tci_to_cfi(mask));
1066 format_vlan_tci(ds, vlan_tci);
1071 case OVS_KEY_ATTR_MPLS: {
1072 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1073 const struct ovs_key_mpls *mpls_mask = NULL;
1075 mpls_mask = nl_attr_get(ma);
1077 format_mpls(ds, mpls_key, mpls_mask);
1081 case OVS_KEY_ATTR_ETHERTYPE:
1082 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1084 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1088 case OVS_KEY_ATTR_IPV4:
1090 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1091 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1093 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1094 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1095 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1096 IP_ARGS(ipv4_key->ipv4_src),
1097 IP_ARGS(ipv4_mask->ipv4_src),
1098 IP_ARGS(ipv4_key->ipv4_dst),
1099 IP_ARGS(ipv4_mask->ipv4_dst),
1100 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1101 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1102 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1103 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1104 ipv4_mask->ipv4_frag);
1106 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1108 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1109 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1110 IP_ARGS(ipv4_key->ipv4_src),
1111 IP_ARGS(ipv4_key->ipv4_dst),
1112 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1114 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1118 case OVS_KEY_ATTR_IPV6:
1120 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1121 char src_str[INET6_ADDRSTRLEN];
1122 char dst_str[INET6_ADDRSTRLEN];
1123 char src_mask[INET6_ADDRSTRLEN];
1124 char dst_mask[INET6_ADDRSTRLEN];
1126 ipv6_key = nl_attr_get(a);
1127 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1128 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1130 ipv6_mask = nl_attr_get(ma);
1131 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1132 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1134 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1135 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1136 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1137 src_str, src_mask, dst_str, dst_mask,
1138 ntohl(ipv6_key->ipv6_label),
1139 ntohl(ipv6_mask->ipv6_label),
1140 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1141 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1142 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1143 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1144 ipv6_mask->ipv6_frag);
1146 const struct ovs_key_ipv6 *ipv6_key;
1147 char src_str[INET6_ADDRSTRLEN];
1148 char dst_str[INET6_ADDRSTRLEN];
1150 ipv6_key = nl_attr_get(a);
1151 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1152 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1154 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1155 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1156 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1157 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1158 ipv6_key->ipv6_hlimit,
1159 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1163 case OVS_KEY_ATTR_TCP:
1165 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1166 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1168 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1169 ",dst=%"PRIu16"/%#"PRIx16,
1170 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1171 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1173 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1175 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1176 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1180 case OVS_KEY_ATTR_UDP:
1182 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1183 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1185 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1186 ",dst=%"PRIu16"/%#"PRIx16,
1187 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1188 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1190 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1192 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1193 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1197 case OVS_KEY_ATTR_ICMP:
1199 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1200 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1202 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1203 icmp_key->icmp_type, icmp_mask->icmp_type,
1204 icmp_key->icmp_code, icmp_mask->icmp_code);
1206 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1208 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1209 icmp_key->icmp_type, icmp_key->icmp_code);
1213 case OVS_KEY_ATTR_ICMPV6:
1215 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1216 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1218 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1219 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1220 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1222 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1224 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1225 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1229 case OVS_KEY_ATTR_ARP:
1231 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1232 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1234 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1235 ",op=%"PRIu16"/%#"PRIx16
1236 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1237 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1238 IP_ARGS(arp_key->arp_sip),
1239 IP_ARGS(arp_mask->arp_sip),
1240 IP_ARGS(arp_key->arp_tip),
1241 IP_ARGS(arp_mask->arp_tip),
1242 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1243 ETH_ADDR_ARGS(arp_key->arp_sha),
1244 ETH_ADDR_ARGS(arp_mask->arp_sha),
1245 ETH_ADDR_ARGS(arp_key->arp_tha),
1246 ETH_ADDR_ARGS(arp_mask->arp_tha));
1248 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1250 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1251 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1252 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1253 ntohs(arp_key->arp_op),
1254 ETH_ADDR_ARGS(arp_key->arp_sha),
1255 ETH_ADDR_ARGS(arp_key->arp_tha));
1259 case OVS_KEY_ATTR_ND: {
1260 const struct ovs_key_nd *nd_key, *nd_mask;
1261 char target[INET6_ADDRSTRLEN];
1263 nd_key = nl_attr_get(a);
1264 nd_mask = ma ? nl_attr_get(ma) : NULL;
1266 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1267 ds_put_format(ds, "target=%s", target);
1269 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1270 ds_put_format(ds, "/%s", target);
1273 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1274 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1275 ETH_ADDR_ARGS(nd_key->nd_sll));
1277 ds_put_format(ds, "/"ETH_ADDR_FMT,
1278 ETH_ADDR_ARGS(nd_mask->nd_sll));
1281 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1282 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1283 ETH_ADDR_ARGS(nd_key->nd_tll));
1285 ds_put_format(ds, "/"ETH_ADDR_FMT,
1286 ETH_ADDR_ARGS(nd_mask->nd_tll));
1292 case OVS_KEY_ATTR_UNSPEC:
1293 case __OVS_KEY_ATTR_MAX:
1295 format_generic_odp_key(a, ds);
1297 ds_put_char(ds, '/');
1298 format_generic_odp_key(ma, ds);
1302 ds_put_char(ds, ')');
1305 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1306 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1307 * 'mask_len' bytes of 'mask' which apply to 'key'. */
1309 odp_flow_format(const struct nlattr *key, size_t key_len,
1310 const struct nlattr *mask, size_t mask_len,
1314 const struct nlattr *a;
1316 bool has_ethtype_key = false;
1317 const struct nlattr *ma = NULL;
1319 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1321 ds_put_char(ds, ',');
1323 if (nl_attr_type(a) == OVS_KEY_ATTR_ETHERTYPE) {
1324 has_ethtype_key = true;
1326 if (mask && mask_len) {
1327 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1329 format_odp_key_attr(a, ma, ds);
1334 if (left == key_len) {
1335 ds_put_cstr(ds, "<empty>");
1337 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1338 for (i = 0; i < left; i++) {
1339 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1341 ds_put_char(ds, ')');
1343 if (!has_ethtype_key) {
1344 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1346 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1347 ntohs(nl_attr_get_be16(ma)));
1351 ds_put_cstr(ds, "<empty>");
1355 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1356 * OVS_KEY_ATTR_* attributes in 'key'. */
1358 odp_flow_key_format(const struct nlattr *key,
1359 size_t key_len, struct ds *ds)
1361 odp_flow_format(key, key_len, NULL, 0, ds);
1365 put_nd_key(int n, const char *nd_target_s,
1366 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
1368 struct ovs_key_nd nd_key;
1370 memset(&nd_key, 0, sizeof nd_key);
1371 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1375 memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
1378 memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
1380 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
1385 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1387 if (!strcasecmp(s, "no")) {
1388 *type = OVS_FRAG_TYPE_NONE;
1389 } else if (!strcasecmp(s, "first")) {
1390 *type = OVS_FRAG_TYPE_FIRST;
1391 } else if (!strcasecmp(s, "later")) {
1392 *type = OVS_FRAG_TYPE_LATER;
1400 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1402 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1403 (mpls_tc << MPLS_TC_SHIFT) |
1404 (mpls_ttl << MPLS_TTL_SHIFT) |
1405 (mpls_bos << MPLS_BOS_SHIFT)));
1409 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1410 struct ofpbuf *key, struct ofpbuf *mask)
1412 /* Many of the sscanf calls in this function use oversized destination
1413 * fields because some sscanf() implementations truncate the range of %i
1414 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
1415 * value of 0x7fff. The other alternatives are to allow only a single
1416 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
1419 * The tun_id parser has to use an alternative approach because there is no
1420 * type larger than 64 bits. */
1423 unsigned long long int priority;
1424 unsigned long long int priority_mask;
1427 if (mask && sscanf(s, "skb_priority(%lli/%lli)%n", &priority,
1428 &priority_mask, &n) > 0 && n > 0) {
1429 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1430 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1432 } else if (sscanf(s, "skb_priority(%lli)%n",
1433 &priority, &n) > 0 && n > 0) {
1434 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1436 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1443 unsigned long long int mark;
1444 unsigned long long int mark_mask;
1447 if (mask && sscanf(s, "skb_mark(%lli/%lli)%n", &mark,
1448 &mark_mask, &n) > 0 && n > 0) {
1449 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1450 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1452 } else if (sscanf(s, "skb_mark(%lli)%n", &mark, &n) > 0 && n > 0) {
1453 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1455 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1463 int tos, tos_mask, ttl, ttl_mask;
1464 struct flow_tnl tun_key, tun_key_mask;
1465 unsigned long long tun_id_mask;
1468 if (mask && sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF]/%llx,"
1469 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1470 "/"IP_SCAN_FMT",tos=%i/%i,ttl=%i/%i,flags%n",
1471 tun_id_s, &tun_id_mask,
1472 IP_SCAN_ARGS(&tun_key.ip_src),
1473 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1474 IP_SCAN_ARGS(&tun_key.ip_dst),
1475 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1476 &tos, &tos_mask, &ttl, &ttl_mask,
1481 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
1482 tun_key_mask.tun_id = htonll(tun_id_mask);
1483 tun_key.ip_tos = tos;
1484 tun_key_mask.ip_tos = tos_mask;
1485 tun_key.ip_ttl = ttl;
1486 tun_key_mask.ip_ttl = ttl_mask;
1487 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1488 tun_key.flags = flags;
1489 tun_key_mask.flags = UINT16_MAX;
1499 tun_key_to_attr(key, &tun_key);
1501 tun_key_to_attr(mask, &tun_key_mask);
1504 } else if (sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF],"
1505 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1506 ",tos=%i,ttl=%i,flags%n", tun_id_s,
1507 IP_SCAN_ARGS(&tun_key.ip_src),
1508 IP_SCAN_ARGS(&tun_key.ip_dst), &tos, &ttl,
1513 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
1514 tun_key.ip_tos = tos;
1515 tun_key.ip_ttl = ttl;
1516 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1517 tun_key.flags = flags;
1527 tun_key_to_attr(key, &tun_key);
1530 memset(&tun_key, 0xff, sizeof tun_key);
1531 tun_key_to_attr(mask, &tun_key);
1538 unsigned long long int in_port;
1539 unsigned long long int in_port_mask;
1542 if (mask && sscanf(s, "in_port(%lli/%lli)%n", &in_port,
1543 &in_port_mask, &n) > 0 && n > 0) {
1544 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1545 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1547 } else if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
1548 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1550 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1557 if (port_names && !strncmp(s, "in_port(", 8)) {
1559 const struct simap_node *node;
1563 name_len = strcspn(s, ")");
1564 node = simap_find_len(port_names, name, name_len);
1566 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1569 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1571 return 8 + name_len + 1;
1576 struct ovs_key_ethernet eth_key;
1577 struct ovs_key_ethernet eth_key_mask;
1580 if (mask && sscanf(s,
1581 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1582 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1583 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1584 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1585 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1586 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n) > 0 && n > 0) {
1588 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1589 ð_key, sizeof eth_key);
1590 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1591 ð_key_mask, sizeof eth_key_mask);
1593 } else if (sscanf(s,
1594 "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
1595 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1596 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
1597 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1598 ð_key, sizeof eth_key);
1601 memset(ð_key, 0xff, sizeof eth_key);
1602 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1603 ð_key, sizeof eth_key);
1610 uint16_t vid, vid_mask;
1615 if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i)%n",
1616 &vid, &vid_mask, &pcp, &pcp_mask, &n) > 0 && n > 0)) {
1617 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1618 htons((vid << VLAN_VID_SHIFT) |
1619 (pcp << VLAN_PCP_SHIFT) |
1621 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1622 htons((vid_mask << VLAN_VID_SHIFT) |
1623 (pcp_mask << VLAN_PCP_SHIFT) |
1624 (1 << VLAN_CFI_SHIFT)));
1626 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n",
1627 &vid, &pcp, &n) > 0 && n > 0)) {
1628 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1629 htons((vid << VLAN_VID_SHIFT) |
1630 (pcp << VLAN_PCP_SHIFT) |
1633 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons(UINT16_MAX));
1636 } else if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i,cfi=%i/%i)%n",
1637 &vid, &vid_mask, &pcp, &pcp_mask, &cfi, &cfi_mask, &n) > 0 && n > 0)) {
1638 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1639 htons((vid << VLAN_VID_SHIFT) |
1640 (pcp << VLAN_PCP_SHIFT) |
1641 (cfi ? VLAN_CFI : 0)));
1642 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1643 htons((vid_mask << VLAN_VID_SHIFT) |
1644 (pcp_mask << VLAN_PCP_SHIFT) |
1645 (cfi_mask << VLAN_CFI_SHIFT)));
1647 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i,cfi=%i)%n",
1648 &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
1649 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1650 htons((vid << VLAN_VID_SHIFT) |
1651 (pcp << VLAN_PCP_SHIFT) |
1652 (cfi ? VLAN_CFI : 0)));
1654 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons(UINT16_MAX));
1665 if (mask && sscanf(s, "eth_type(%i/%i)%n",
1666 ð_type, ð_type_mask, &n) > 0 && n > 0) {
1667 if (eth_type != 0) {
1668 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1670 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1672 } else if (sscanf(s, "eth_type(%i)%n", ð_type, &n) > 0 && n > 0) {
1673 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1675 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE,
1683 int label, tc, ttl, bos;
1684 int label_mask, tc_mask, ttl_mask, bos_mask;
1687 if (mask && sscanf(s, "mpls(label=%"SCNi32"/%"SCNi32",tc=%i/%i,ttl=%i/%i,bos=%i/%i)%n",
1688 &label, &label_mask, &tc, &tc_mask, &ttl, &ttl_mask, &bos, &bos_mask, &n) > 0 && n > 0) {
1689 struct ovs_key_mpls *mpls, *mpls_mask;
1691 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1693 mpls->mpls_top_lse = mpls_lse_from_components(label, tc, ttl, bos);
1695 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1697 mpls_mask->mpls_top_lse = mpls_lse_from_components(
1698 label_mask, tc_mask, ttl_mask, bos_mask);
1700 } else if (sscanf(s, "mpls(label=%"SCNi32",tc=%i,ttl=%i,bos=%i)%n",
1701 &label, &tc, &ttl, &bos, &n) > 0 &&
1703 struct ovs_key_mpls *mpls;
1705 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1707 mpls->mpls_top_lse = mpls_lse_from_components(label, tc, ttl, bos);
1709 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1711 mpls->mpls_top_lse = htonl(UINT32_MAX);
1719 ovs_be32 ipv4_src, ipv4_src_mask;
1720 ovs_be32 ipv4_dst, ipv4_dst_mask;
1721 int ipv4_proto, ipv4_proto_mask;
1722 int ipv4_tos, ipv4_tos_mask;
1723 int ipv4_ttl, ipv4_ttl_mask;
1726 enum ovs_frag_type ipv4_frag;
1729 if (mask && sscanf(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1730 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1731 "proto=%i/%i,tos=%i/%i,ttl=%i/%i,"
1732 "frag=%7[a-z]/%i)%n",
1733 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_src_mask),
1734 IP_SCAN_ARGS(&ipv4_dst), IP_SCAN_ARGS(&ipv4_dst_mask),
1735 &ipv4_proto, &ipv4_proto_mask,
1736 &ipv4_tos, &ipv4_tos_mask, &ipv4_ttl, &ipv4_ttl_mask,
1737 frag, &ipv4_frag_mask, &n) > 0
1739 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1740 struct ovs_key_ipv4 ipv4_key;
1741 struct ovs_key_ipv4 ipv4_mask;
1743 ipv4_key.ipv4_src = ipv4_src;
1744 ipv4_key.ipv4_dst = ipv4_dst;
1745 ipv4_key.ipv4_proto = ipv4_proto;
1746 ipv4_key.ipv4_tos = ipv4_tos;
1747 ipv4_key.ipv4_ttl = ipv4_ttl;
1748 ipv4_key.ipv4_frag = ipv4_frag;
1749 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1750 &ipv4_key, sizeof ipv4_key);
1752 ipv4_mask.ipv4_src = ipv4_src_mask;
1753 ipv4_mask.ipv4_dst = ipv4_dst_mask;
1754 ipv4_mask.ipv4_proto = ipv4_proto_mask;
1755 ipv4_mask.ipv4_tos = ipv4_tos_mask;
1756 ipv4_mask.ipv4_ttl = ipv4_ttl_mask;
1757 ipv4_mask.ipv4_frag = ipv4_frag_mask;
1758 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1759 &ipv4_mask, sizeof ipv4_mask);
1761 } else if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1762 "proto=%i,tos=%i,ttl=%i,frag=%7[a-z])%n",
1763 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_dst),
1764 &ipv4_proto, &ipv4_tos, &ipv4_ttl, frag, &n) > 0
1766 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1767 struct ovs_key_ipv4 ipv4_key;
1769 ipv4_key.ipv4_src = ipv4_src;
1770 ipv4_key.ipv4_dst = ipv4_dst;
1771 ipv4_key.ipv4_proto = ipv4_proto;
1772 ipv4_key.ipv4_tos = ipv4_tos;
1773 ipv4_key.ipv4_ttl = ipv4_ttl;
1774 ipv4_key.ipv4_frag = ipv4_frag;
1775 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1776 &ipv4_key, sizeof ipv4_key);
1779 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1780 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1781 &ipv4_key, sizeof ipv4_key);
1788 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1789 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1790 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1791 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1792 int ipv6_label, ipv6_label_mask;
1793 int ipv6_proto, ipv6_proto_mask;
1794 int ipv6_tclass, ipv6_tclass_mask;
1795 int ipv6_hlimit, ipv6_hlimit_mask;
1797 enum ovs_frag_type ipv6_frag;
1801 if (mask && sscanf(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
1802 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
1803 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
1804 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
1805 ipv6_src_s, ipv6_src_mask_s, ipv6_dst_s, ipv6_dst_mask_s,
1806 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
1807 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
1808 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
1809 &ipv6_frag_mask, &n) > 0
1811 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1812 struct ovs_key_ipv6 ipv6_key;
1813 struct ovs_key_ipv6 ipv6_mask;
1815 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1816 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
1817 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
1818 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
1822 ipv6_key.ipv6_label = htonl(ipv6_label);
1823 ipv6_key.ipv6_proto = ipv6_proto;
1824 ipv6_key.ipv6_tclass = ipv6_tclass;
1825 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1826 ipv6_key.ipv6_frag = ipv6_frag;
1827 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1828 &ipv6_key, sizeof ipv6_key);
1830 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
1831 ipv6_mask.ipv6_proto = ipv6_proto_mask;
1832 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
1833 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
1834 ipv6_mask.ipv6_frag = ipv6_frag_mask;
1835 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1836 &ipv6_mask, sizeof ipv6_mask);
1838 } else if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
1839 "label=%i,proto=%i,tclass=%i,hlimit=%i,frag=%7[a-z])%n",
1840 ipv6_src_s, ipv6_dst_s, &ipv6_label,
1841 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) > 0
1843 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1844 struct ovs_key_ipv6 ipv6_key;
1846 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1847 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1850 ipv6_key.ipv6_label = htonl(ipv6_label);
1851 ipv6_key.ipv6_proto = ipv6_proto;
1852 ipv6_key.ipv6_tclass = ipv6_tclass;
1853 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1854 ipv6_key.ipv6_frag = ipv6_frag;
1855 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1856 &ipv6_key, sizeof ipv6_key);
1859 memset(&ipv6_key, 0xff, sizeof ipv6_key);
1860 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1861 &ipv6_key, sizeof ipv6_key);
1874 if (mask && sscanf(s, "tcp(src=%i/%i,dst=%i/%i)%n",
1875 &tcp_src, &tcp_src_mask, &tcp_dst, &tcp_dst_mask, &n) > 0
1877 struct ovs_key_tcp tcp_key;
1878 struct ovs_key_tcp tcp_mask;
1880 tcp_key.tcp_src = htons(tcp_src);
1881 tcp_key.tcp_dst = htons(tcp_dst);
1882 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
1884 tcp_mask.tcp_src = htons(tcp_src_mask);
1885 tcp_mask.tcp_dst = htons(tcp_dst_mask);
1886 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
1887 &tcp_mask, sizeof tcp_mask);
1889 } else if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
1891 struct ovs_key_tcp tcp_key;
1893 tcp_key.tcp_src = htons(tcp_src);
1894 tcp_key.tcp_dst = htons(tcp_dst);
1895 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
1898 memset(&tcp_key, 0xff, sizeof tcp_key);
1899 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
1900 &tcp_key, sizeof tcp_key);
1913 if (mask && sscanf(s, "udp(src=%i/%i,dst=%i/%i)%n",
1914 &udp_src, &udp_src_mask,
1915 &udp_dst, &udp_dst_mask, &n) > 0 && n > 0) {
1916 struct ovs_key_udp udp_key;
1917 struct ovs_key_udp udp_mask;
1919 udp_key.udp_src = htons(udp_src);
1920 udp_key.udp_dst = htons(udp_dst);
1921 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1923 udp_mask.udp_src = htons(udp_src_mask);
1924 udp_mask.udp_dst = htons(udp_dst_mask);
1925 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
1926 &udp_mask, sizeof udp_mask);
1929 if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
1931 struct ovs_key_udp udp_key;
1933 udp_key.udp_src = htons(udp_src);
1934 udp_key.udp_dst = htons(udp_dst);
1935 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1938 memset(&udp_key, 0xff, sizeof udp_key);
1939 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1952 if (mask && sscanf(s, "icmp(type=%i/%i,code=%i/%i)%n",
1953 &icmp_type, &icmp_type_mask,
1954 &icmp_code, &icmp_code_mask, &n) > 0 && n > 0) {
1955 struct ovs_key_icmp icmp_key;
1956 struct ovs_key_icmp icmp_mask;
1958 icmp_key.icmp_type = icmp_type;
1959 icmp_key.icmp_code = icmp_code;
1960 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
1961 &icmp_key, sizeof icmp_key);
1963 icmp_mask.icmp_type = icmp_type_mask;
1964 icmp_mask.icmp_code = icmp_code_mask;
1965 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
1966 &icmp_mask, sizeof icmp_mask);
1968 } else if (sscanf(s, "icmp(type=%i,code=%i)%n",
1969 &icmp_type, &icmp_code, &n) > 0
1971 struct ovs_key_icmp icmp_key;
1973 icmp_key.icmp_type = icmp_type;
1974 icmp_key.icmp_code = icmp_code;
1975 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
1976 &icmp_key, sizeof icmp_key);
1978 memset(&icmp_key, 0xff, sizeof icmp_key);
1979 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
1987 struct ovs_key_icmpv6 icmpv6_key;
1988 struct ovs_key_icmpv6 icmpv6_mask;
1989 int icmpv6_type_mask;
1990 int icmpv6_code_mask;
1993 if (mask && sscanf(s, "icmpv6(type=%"SCNi8"/%i,code=%"SCNi8"/%i)%n",
1994 &icmpv6_key.icmpv6_type, &icmpv6_type_mask,
1995 &icmpv6_key.icmpv6_code, &icmpv6_code_mask, &n) > 0
1997 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
1998 &icmpv6_key, sizeof icmpv6_key);
2000 icmpv6_mask.icmpv6_type = icmpv6_type_mask;
2001 icmpv6_mask.icmpv6_code = icmpv6_code_mask;
2002 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2003 sizeof icmpv6_mask);
2005 } else if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2006 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
2008 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2009 &icmpv6_key, sizeof icmpv6_key);
2012 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2013 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2021 ovs_be32 arp_sip, arp_sip_mask;
2022 ovs_be32 arp_tip, arp_tip_mask;
2023 int arp_op, arp_op_mask;
2024 uint8_t arp_sha[ETH_ADDR_LEN];
2025 uint8_t arp_sha_mask[ETH_ADDR_LEN];
2026 uint8_t arp_tha[ETH_ADDR_LEN];
2027 uint8_t arp_tha_mask[ETH_ADDR_LEN];
2030 if (mask && sscanf(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2031 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2032 "op=%i/%i,sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2033 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2034 IP_SCAN_ARGS(&arp_sip), IP_SCAN_ARGS(&arp_sip_mask),
2035 IP_SCAN_ARGS(&arp_tip), IP_SCAN_ARGS(&arp_tip_mask),
2036 &arp_op, &arp_op_mask,
2037 ETH_ADDR_SCAN_ARGS(arp_sha),
2038 ETH_ADDR_SCAN_ARGS(arp_sha_mask),
2039 ETH_ADDR_SCAN_ARGS(arp_tha),
2040 ETH_ADDR_SCAN_ARGS(arp_tha_mask), &n) > 0 && n > 0) {
2041 struct ovs_key_arp arp_key;
2042 struct ovs_key_arp arp_mask;
2044 memset(&arp_key, 0, sizeof arp_key);
2045 arp_key.arp_sip = arp_sip;
2046 arp_key.arp_tip = arp_tip;
2047 arp_key.arp_op = htons(arp_op);
2048 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2049 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
2050 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2052 arp_mask.arp_sip = arp_sip_mask;
2053 arp_mask.arp_tip = arp_tip_mask;
2054 arp_mask.arp_op = htons(arp_op_mask);
2055 memcpy(arp_mask.arp_sha, arp_sha_mask, ETH_ADDR_LEN);
2056 memcpy(arp_mask.arp_tha, arp_tha_mask, ETH_ADDR_LEN);
2057 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2058 &arp_mask, sizeof arp_mask);
2060 } else if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2061 "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
2062 IP_SCAN_ARGS(&arp_sip),
2063 IP_SCAN_ARGS(&arp_tip),
2065 ETH_ADDR_SCAN_ARGS(arp_sha),
2066 ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
2067 struct ovs_key_arp arp_key;
2069 memset(&arp_key, 0, sizeof arp_key);
2070 arp_key.arp_sip = arp_sip;
2071 arp_key.arp_tip = arp_tip;
2072 arp_key.arp_op = htons(arp_op);
2073 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2074 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
2075 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2078 memset(&arp_key, 0xff, sizeof arp_key);
2079 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2080 &arp_key, sizeof arp_key);
2087 char nd_target_s[IPV6_SCAN_LEN + 1];
2088 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2089 uint8_t nd_sll[ETH_ADDR_LEN];
2090 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2091 uint8_t nd_tll[ETH_ADDR_LEN];
2092 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2095 memset(&nd_target_mask_s[0], 0xff, sizeof nd_target_s);
2096 memset(&nd_sll_mask[0], 0xff, sizeof nd_sll);
2097 memset(&nd_tll_mask [0], 0xff, sizeof nd_tll);
2099 if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2100 nd_target_s, nd_target_mask_s, &n) > 0 && n > 0) {
2101 put_nd_key(n, nd_target_s, NULL, NULL, key);
2102 put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
2103 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
2104 nd_target_s, &n) > 0 && n > 0) {
2105 put_nd_key(n, nd_target_s, NULL, NULL, key);
2107 put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
2109 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2110 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2111 nd_target_s, nd_target_mask_s,
2112 ETH_ADDR_SCAN_ARGS(nd_sll),
2113 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n) > 0 && n > 0) {
2114 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2115 put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2116 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
2117 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
2119 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2121 put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2123 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2124 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2125 nd_target_s, nd_target_mask_s,
2126 ETH_ADDR_SCAN_ARGS(nd_tll),
2127 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n) > 0 && n > 0) {
2128 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2129 put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2130 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
2131 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2133 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2135 put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2137 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2138 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2139 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2140 nd_target_s, nd_target_mask_s,
2141 ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2142 ETH_ADDR_SCAN_ARGS(nd_tll), ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2145 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2146 put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2147 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
2148 "tll="ETH_ADDR_SCAN_FMT")%n",
2149 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2150 ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2152 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2154 put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2163 if (!strncmp(s, "encap(", 6)) {
2164 const char *start = s;
2165 size_t encap, encap_mask = 0;
2167 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2169 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2176 s += strspn(s, ", \t\r\n");
2179 } else if (*s == ')') {
2183 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2191 nl_msg_end_nested(key, encap);
2193 nl_msg_end_nested(mask, encap_mask);
2202 /* Parses the string representation of a datapath flow key, in the
2203 * format output by odp_flow_key_format(). Returns 0 if successful,
2204 * otherwise a positive errno value. On success, the flow key is
2205 * appended to 'key' as a series of Netlink attributes. On failure, no
2206 * data is appended to 'key'. Either way, 'key''s data might be
2209 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2210 * to a port number. (Port names may be used instead of port numbers in
2213 * On success, the attributes appended to 'key' are individually syntactically
2214 * valid, but they may not be valid as a sequence. 'key' might, for example,
2215 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2217 odp_flow_from_string(const char *s, const struct simap *port_names,
2218 struct ofpbuf *key, struct ofpbuf *mask)
2220 const size_t old_size = key->size;
2224 s += strspn(s, delimiters);
2229 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2231 key->size = old_size;
2241 ovs_to_odp_frag(uint8_t nw_frag)
2243 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2244 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2245 : OVS_FRAG_TYPE_LATER);
2249 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2250 const struct flow *flow, uint32_t odp_in_port)
2253 struct ovs_key_ethernet *eth_key;
2256 /* We assume that if 'data' and 'flow' are not the same, we should
2257 * treat 'data' as a mask. */
2258 is_mask = (data != flow);
2260 if (flow->skb_priority) {
2261 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2264 if (flow->tunnel.ip_dst) {
2265 tun_key_to_attr(buf, &data->tunnel);
2268 if (flow->skb_mark) {
2269 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->skb_mark);
2272 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2273 * is not the magical value "OVSP_NONE". */
2274 if (is_mask || odp_in_port != OVSP_NONE) {
2275 nl_msg_put_u32(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2278 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2280 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2281 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2283 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2285 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(UINT16_MAX));
2287 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2289 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2290 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2291 if (flow->vlan_tci == htons(0)) {
2298 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2299 /* For backwards compatibility with kernels that don't support
2300 * wildcarding, the following convention is used to encode the
2301 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2304 * -------- -------- -------
2305 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2306 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2307 * <none> 0xffff Any non-Ethernet II frame (except valid
2308 * 802.3 SNAP packet with valid eth_type).
2311 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2316 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2318 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2319 struct ovs_key_ipv4 *ipv4_key;
2321 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2323 ipv4_key->ipv4_src = data->nw_src;
2324 ipv4_key->ipv4_dst = data->nw_dst;
2325 ipv4_key->ipv4_proto = data->nw_proto;
2326 ipv4_key->ipv4_tos = data->nw_tos;
2327 ipv4_key->ipv4_ttl = data->nw_ttl;
2328 ipv4_key->ipv4_frag = ovs_to_odp_frag(data->nw_frag);
2329 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2330 struct ovs_key_ipv6 *ipv6_key;
2332 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2334 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2335 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2336 ipv6_key->ipv6_label = data->ipv6_label;
2337 ipv6_key->ipv6_proto = data->nw_proto;
2338 ipv6_key->ipv6_tclass = data->nw_tos;
2339 ipv6_key->ipv6_hlimit = data->nw_ttl;
2340 ipv6_key->ipv6_frag = ovs_to_odp_frag(flow->nw_frag);
2341 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2342 flow->dl_type == htons(ETH_TYPE_RARP)) {
2343 struct ovs_key_arp *arp_key;
2345 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
2347 memset(arp_key, 0, sizeof *arp_key);
2348 arp_key->arp_sip = data->nw_src;
2349 arp_key->arp_tip = data->nw_dst;
2350 arp_key->arp_op = htons(data->nw_proto);
2351 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2352 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2355 if (flow->mpls_depth) {
2356 struct ovs_key_mpls *mpls_key;
2358 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2360 mpls_key->mpls_top_lse = flow->mpls_lse;
2363 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2364 if (flow->nw_proto == IPPROTO_TCP) {
2365 struct ovs_key_tcp *tcp_key;
2367 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2369 tcp_key->tcp_src = data->tp_src;
2370 tcp_key->tcp_dst = data->tp_dst;
2371 } else if (flow->nw_proto == IPPROTO_UDP) {
2372 struct ovs_key_udp *udp_key;
2374 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2376 udp_key->udp_src = data->tp_src;
2377 udp_key->udp_dst = data->tp_dst;
2378 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2379 && flow->nw_proto == IPPROTO_ICMP) {
2380 struct ovs_key_icmp *icmp_key;
2382 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2384 icmp_key->icmp_type = ntohs(data->tp_src);
2385 icmp_key->icmp_code = ntohs(data->tp_dst);
2386 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2387 && flow->nw_proto == IPPROTO_ICMPV6) {
2388 struct ovs_key_icmpv6 *icmpv6_key;
2390 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2391 sizeof *icmpv6_key);
2392 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2393 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2395 if (icmpv6_key->icmpv6_type == ND_NEIGHBOR_SOLICIT
2396 || icmpv6_key->icmpv6_type == ND_NEIGHBOR_ADVERT) {
2397 struct ovs_key_nd *nd_key;
2399 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2401 memcpy(nd_key->nd_target, &data->nd_target,
2402 sizeof nd_key->nd_target);
2403 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2404 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2411 nl_msg_end_nested(buf, encap);
2415 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2416 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2417 * number rather than a datapath port number). Instead, if 'odp_in_port'
2418 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2421 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2422 * capable of being expanded to allow for that much space. */
2424 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2425 uint32_t odp_in_port)
2427 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port);
2430 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2431 * 'buf'. 'flow' is used as a template to determine how to interpret
2432 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2433 * it doesn't indicate whether the other fields should be interpreted as
2434 * ARP, IPv4, IPv6, etc.
2436 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2437 * capable of being expanded to allow for that much space. */
2439 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2440 const struct flow *flow, uint32_t odp_in_port_mask)
2442 odp_flow_key_from_flow__(buf, mask, flow, odp_in_port_mask);
2446 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2448 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2449 return hash_words((const uint32_t *) key, key_len / sizeof(uint32_t), 0);
2453 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2454 uint64_t attrs, int out_of_range_attr,
2455 const struct nlattr *key, size_t key_len)
2460 if (VLOG_DROP_DBG(rl)) {
2465 for (i = 0; i < 64; i++) {
2466 if (attrs & (UINT64_C(1) << i)) {
2467 ds_put_format(&s, " %s", ovs_key_attr_to_string(i));
2470 if (out_of_range_attr) {
2471 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2474 ds_put_cstr(&s, ": ");
2475 odp_flow_key_format(key, key_len, &s);
2477 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2482 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2484 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2486 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2487 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2491 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2492 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2493 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2494 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2501 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2502 const struct nlattr *attrs[], uint64_t *present_attrsp,
2503 int *out_of_range_attrp)
2505 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2506 const struct nlattr *nla;
2507 uint64_t present_attrs;
2510 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2512 *out_of_range_attrp = 0;
2513 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2514 uint16_t type = nl_attr_type(nla);
2515 size_t len = nl_attr_get_size(nla);
2516 int expected_len = odp_flow_key_attr_len(type);
2518 if (len != expected_len && expected_len >= 0) {
2519 VLOG_ERR_RL(&rl, "attribute %s has length %zu but should have "
2520 "length %d", ovs_key_attr_to_string(type),
2525 if (type > OVS_KEY_ATTR_MAX) {
2526 *out_of_range_attrp = type;
2528 if (present_attrs & (UINT64_C(1) << type)) {
2529 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2530 ovs_key_attr_to_string(type));
2534 present_attrs |= UINT64_C(1) << type;
2539 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2543 *present_attrsp = present_attrs;
2547 static enum odp_key_fitness
2548 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2549 uint64_t expected_attrs,
2550 const struct nlattr *key, size_t key_len)
2552 uint64_t missing_attrs;
2553 uint64_t extra_attrs;
2555 missing_attrs = expected_attrs & ~present_attrs;
2556 if (missing_attrs) {
2557 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2558 log_odp_key_attributes(&rl, "expected but not present",
2559 missing_attrs, 0, key, key_len);
2560 return ODP_FIT_TOO_LITTLE;
2563 extra_attrs = present_attrs & ~expected_attrs;
2564 if (extra_attrs || out_of_range_attr) {
2565 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2566 log_odp_key_attributes(&rl, "present but not expected",
2567 extra_attrs, out_of_range_attr, key, key_len);
2568 return ODP_FIT_TOO_MUCH;
2571 return ODP_FIT_PERFECT;
2575 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2576 uint64_t present_attrs, uint64_t *expected_attrs,
2579 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2581 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2582 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2583 if (ntohs(flow->dl_type) < 1536) {
2584 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2585 ntohs(flow->dl_type));
2588 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2590 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2595 static enum odp_key_fitness
2596 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2597 uint64_t present_attrs, int out_of_range_attr,
2598 uint64_t expected_attrs, struct flow *flow,
2599 const struct nlattr *key, size_t key_len)
2601 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2603 if (eth_type_mpls(flow->dl_type)) {
2604 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2606 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2607 return ODP_FIT_TOO_LITTLE;
2609 flow->mpls_lse = nl_attr_get_be32(attrs[OVS_KEY_ATTR_MPLS]);
2611 } else if (flow->dl_type == htons(ETH_TYPE_IP)) {
2612 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
2613 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
2614 const struct ovs_key_ipv4 *ipv4_key;
2616 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
2617 flow->nw_src = ipv4_key->ipv4_src;
2618 flow->nw_dst = ipv4_key->ipv4_dst;
2619 flow->nw_proto = ipv4_key->ipv4_proto;
2620 flow->nw_tos = ipv4_key->ipv4_tos;
2621 flow->nw_ttl = ipv4_key->ipv4_ttl;
2622 if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
2623 return ODP_FIT_ERROR;
2626 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2627 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
2628 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
2629 const struct ovs_key_ipv6 *ipv6_key;
2631 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
2632 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
2633 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
2634 flow->ipv6_label = ipv6_key->ipv6_label;
2635 flow->nw_proto = ipv6_key->ipv6_proto;
2636 flow->nw_tos = ipv6_key->ipv6_tclass;
2637 flow->nw_ttl = ipv6_key->ipv6_hlimit;
2638 if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
2639 return ODP_FIT_ERROR;
2642 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2643 flow->dl_type == htons(ETH_TYPE_RARP)) {
2644 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
2645 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
2646 const struct ovs_key_arp *arp_key;
2648 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
2649 flow->nw_src = arp_key->arp_sip;
2650 flow->nw_dst = arp_key->arp_tip;
2651 if (arp_key->arp_op & htons(0xff00)) {
2652 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
2653 "key", ntohs(arp_key->arp_op));
2654 return ODP_FIT_ERROR;
2656 flow->nw_proto = ntohs(arp_key->arp_op);
2657 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
2658 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
2662 if (flow->nw_proto == IPPROTO_TCP
2663 && (flow->dl_type == htons(ETH_TYPE_IP) ||
2664 flow->dl_type == htons(ETH_TYPE_IPV6))
2665 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2666 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
2667 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
2668 const struct ovs_key_tcp *tcp_key;
2670 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
2671 flow->tp_src = tcp_key->tcp_src;
2672 flow->tp_dst = tcp_key->tcp_dst;
2674 } else if (flow->nw_proto == IPPROTO_UDP
2675 && (flow->dl_type == htons(ETH_TYPE_IP) ||
2676 flow->dl_type == htons(ETH_TYPE_IPV6))
2677 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2678 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
2679 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
2680 const struct ovs_key_udp *udp_key;
2682 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
2683 flow->tp_src = udp_key->udp_src;
2684 flow->tp_dst = udp_key->udp_dst;
2686 } else if (flow->nw_proto == IPPROTO_ICMP
2687 && flow->dl_type == htons(ETH_TYPE_IP)
2688 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2689 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
2690 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
2691 const struct ovs_key_icmp *icmp_key;
2693 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
2694 flow->tp_src = htons(icmp_key->icmp_type);
2695 flow->tp_dst = htons(icmp_key->icmp_code);
2697 } else if (flow->nw_proto == IPPROTO_ICMPV6
2698 && flow->dl_type == htons(ETH_TYPE_IPV6)
2699 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2700 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
2701 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
2702 const struct ovs_key_icmpv6 *icmpv6_key;
2704 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
2705 flow->tp_src = htons(icmpv6_key->icmpv6_type);
2706 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
2708 if (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2709 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) {
2710 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
2711 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
2712 const struct ovs_key_nd *nd_key;
2714 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
2715 memcpy(&flow->nd_target, nd_key->nd_target,
2716 sizeof flow->nd_target);
2717 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
2718 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
2724 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
2728 /* Parse 802.1Q header then encapsulated L3 attributes. */
2729 static enum odp_key_fitness
2730 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2731 uint64_t present_attrs, int out_of_range_attr,
2732 uint64_t expected_attrs, struct flow *flow,
2733 const struct nlattr *key, size_t key_len)
2735 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2737 const struct nlattr *encap
2738 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
2739 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
2740 enum odp_key_fitness encap_fitness;
2741 enum odp_key_fitness fitness;
2744 /* Calulate fitness of outer attributes. */
2745 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
2746 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
2747 fitness = check_expectations(present_attrs, out_of_range_attr,
2748 expected_attrs, key, key_len);
2750 /* Get the VLAN TCI value. */
2751 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
2752 return ODP_FIT_TOO_LITTLE;
2754 tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
2755 if (tci == htons(0)) {
2756 /* Corner case for a truncated 802.1Q header. */
2757 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
2758 return ODP_FIT_TOO_MUCH;
2761 } else if (!(tci & htons(VLAN_CFI))) {
2762 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
2763 "but CFI bit is not set", ntohs(tci));
2764 return ODP_FIT_ERROR;
2768 * Remove the TPID from dl_type since it's not the real Ethertype. */
2769 flow->vlan_tci = tci;
2770 flow->dl_type = htons(0);
2772 /* Now parse the encapsulated attributes. */
2773 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
2774 attrs, &present_attrs, &out_of_range_attr)) {
2775 return ODP_FIT_ERROR;
2779 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
2780 return ODP_FIT_ERROR;
2782 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
2783 expected_attrs, flow, key, key_len);
2785 /* The overall fitness is the worse of the outer and inner attributes. */
2786 return MAX(fitness, encap_fitness);
2789 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
2790 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
2791 * 'key' fits our expectations for what a flow key should contain.
2793 * The 'in_port' will be the datapath's understanding of the port. The
2794 * caller will need to translate with odp_port_to_ofp_port() if the
2795 * OpenFlow port is needed.
2797 * This function doesn't take the packet itself as an argument because none of
2798 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
2799 * it is always possible to infer which additional attribute(s) should appear
2800 * by looking at the attributes for lower-level protocols, e.g. if the network
2801 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
2802 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
2803 * must be absent. */
2804 enum odp_key_fitness
2805 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
2808 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
2809 uint64_t expected_attrs;
2810 uint64_t present_attrs;
2811 int out_of_range_attr;
2813 memset(flow, 0, sizeof *flow);
2815 /* Parse attributes. */
2816 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
2817 &out_of_range_attr)) {
2818 return ODP_FIT_ERROR;
2823 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
2824 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
2825 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
2828 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
2829 flow->skb_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
2830 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
2833 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
2834 enum odp_key_fitness res;
2836 res = tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
2837 if (res == ODP_FIT_ERROR) {
2838 return ODP_FIT_ERROR;
2839 } else if (res == ODP_FIT_PERFECT) {
2840 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
2844 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
2845 flow->in_port = nl_attr_get_u32(attrs[OVS_KEY_ATTR_IN_PORT]);
2846 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
2848 flow->in_port = OVSP_NONE;
2851 /* Ethernet header. */
2852 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
2853 const struct ovs_key_ethernet *eth_key;
2855 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
2856 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
2857 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
2859 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
2861 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
2862 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
2863 return ODP_FIT_ERROR;
2866 if (flow->dl_type == htons(ETH_TYPE_VLAN)) {
2867 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
2868 expected_attrs, flow, key, key_len);
2870 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
2871 expected_attrs, flow, key, key_len);
2874 /* Returns 'fitness' as a string, for use in debug messages. */
2876 odp_key_fitness_to_string(enum odp_key_fitness fitness)
2879 case ODP_FIT_PERFECT:
2881 case ODP_FIT_TOO_MUCH:
2883 case ODP_FIT_TOO_LITTLE:
2884 return "too_little";
2892 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
2893 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
2894 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
2895 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
2896 * null, then the return value is not meaningful.) */
2898 odp_put_userspace_action(uint32_t pid,
2899 const void *userdata, size_t userdata_size,
2900 struct ofpbuf *odp_actions)
2902 size_t userdata_ofs;
2905 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
2906 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
2908 userdata_ofs = odp_actions->size + NLA_HDRLEN;
2909 nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
2910 userdata, userdata_size);
2914 nl_msg_end_nested(odp_actions, offset);
2916 return userdata_ofs;
2920 odp_put_tunnel_action(const struct flow_tnl *tunnel,
2921 struct ofpbuf *odp_actions)
2923 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
2924 tun_key_to_attr(odp_actions, tunnel);
2925 nl_msg_end_nested(odp_actions, offset);
2928 /* The commit_odp_actions() function and its helpers. */
2931 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
2932 const void *key, size_t key_size)
2934 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
2935 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
2936 nl_msg_end_nested(odp_actions, offset);
2940 odp_put_skb_mark_action(const uint32_t skb_mark,
2941 struct ofpbuf *odp_actions)
2943 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &skb_mark,
2947 /* If any of the flow key data that ODP actions can modify are different in
2948 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
2949 * 'odp_actions' that change the flow tunneling information in key from
2950 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
2951 * same way. In other words, operates the same as commit_odp_actions(), but
2952 * only on tunneling information. */
2954 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
2955 struct ofpbuf *odp_actions)
2957 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
2958 if (flow->tunnel.ip_dst) {
2959 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
2962 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
2963 odp_put_tunnel_action(&base->tunnel, odp_actions);
2968 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
2969 struct ofpbuf *odp_actions,
2970 struct flow_wildcards *wc)
2972 struct ovs_key_ethernet eth_key;
2974 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
2975 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
2979 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
2980 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
2982 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
2983 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
2985 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
2986 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
2988 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
2989 ð_key, sizeof(eth_key));
2993 commit_vlan_action(const struct flow *flow, struct flow *base,
2994 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
2996 if (base->vlan_tci == flow->vlan_tci) {
3000 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3002 if (base->vlan_tci & htons(VLAN_CFI)) {
3003 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3006 if (flow->vlan_tci & htons(VLAN_CFI)) {
3007 struct ovs_action_push_vlan vlan;
3009 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3010 vlan.vlan_tci = flow->vlan_tci;
3011 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3012 &vlan, sizeof vlan);
3014 base->vlan_tci = flow->vlan_tci;
3018 commit_mpls_action(const struct flow *flow, struct flow *base,
3019 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3021 if (flow->mpls_lse == base->mpls_lse &&
3022 flow->mpls_depth == base->mpls_depth) {
3026 memset(&wc->masks.mpls_lse, 0xff, sizeof wc->masks.mpls_lse);
3028 if (flow->mpls_depth < base->mpls_depth) {
3029 if (base->mpls_depth - flow->mpls_depth > 1) {
3030 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3031 VLOG_WARN_RL(&rl, "Multiple mpls_pop actions reduced to "
3032 " a single mpls_pop action");
3035 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, flow->dl_type);
3036 } else if (flow->mpls_depth > base->mpls_depth) {
3037 struct ovs_action_push_mpls *mpls;
3039 if (flow->mpls_depth - base->mpls_depth > 1) {
3040 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3041 VLOG_WARN_RL(&rl, "Multiple mpls_push actions reduced to "
3042 " a single mpls_push action");
3045 mpls = nl_msg_put_unspec_uninit(odp_actions, OVS_ACTION_ATTR_PUSH_MPLS,
3047 memset(mpls, 0, sizeof *mpls);
3048 mpls->mpls_ethertype = flow->dl_type;
3049 mpls->mpls_lse = flow->mpls_lse;
3051 struct ovs_key_mpls mpls_key;
3053 mpls_key.mpls_top_lse = flow->mpls_lse;
3054 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3055 &mpls_key, sizeof(mpls_key));
3058 base->dl_type = flow->dl_type;
3059 base->mpls_lse = flow->mpls_lse;
3060 base->mpls_depth = flow->mpls_depth;
3064 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3065 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3067 struct ovs_key_ipv4 ipv4_key;
3069 if (base->nw_src == flow->nw_src &&
3070 base->nw_dst == flow->nw_dst &&
3071 base->nw_tos == flow->nw_tos &&
3072 base->nw_ttl == flow->nw_ttl &&
3073 base->nw_frag == flow->nw_frag) {
3077 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3078 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3079 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3080 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3081 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3082 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3084 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3085 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3086 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3087 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3088 ipv4_key.ipv4_proto = base->nw_proto;
3089 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3091 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3092 &ipv4_key, sizeof(ipv4_key));
3096 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3097 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3099 struct ovs_key_ipv6 ipv6_key;
3101 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3102 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3103 base->ipv6_label == flow->ipv6_label &&
3104 base->nw_tos == flow->nw_tos &&
3105 base->nw_ttl == flow->nw_ttl &&
3106 base->nw_frag == flow->nw_frag) {
3110 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3111 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3112 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3113 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3114 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3115 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3116 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3118 base->ipv6_src = flow->ipv6_src;
3119 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3120 base->ipv6_dst = flow->ipv6_dst;
3121 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3123 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3124 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3125 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3126 ipv6_key.ipv6_proto = base->nw_proto;
3127 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3129 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3130 &ipv6_key, sizeof(ipv6_key));
3134 commit_set_nw_action(const struct flow *flow, struct flow *base,
3135 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3137 /* Check if flow really have an IP header. */
3138 if (!flow->nw_proto) {
3142 if (base->dl_type == htons(ETH_TYPE_IP)) {
3143 commit_set_ipv4_action(flow, base, odp_actions, wc);
3144 } else if (base->dl_type == htons(ETH_TYPE_IPV6)) {
3145 commit_set_ipv6_action(flow, base, odp_actions, wc);
3150 commit_set_port_action(const struct flow *flow, struct flow *base,
3151 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3153 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3157 if (base->tp_src == flow->tp_src &&
3158 base->tp_dst == flow->tp_dst) {
3162 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3163 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3165 if (flow->nw_proto == IPPROTO_TCP) {
3166 struct ovs_key_tcp port_key;
3168 port_key.tcp_src = base->tp_src = flow->tp_src;
3169 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3171 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3172 &port_key, sizeof(port_key));
3174 } else if (flow->nw_proto == IPPROTO_UDP) {
3175 struct ovs_key_udp port_key;
3177 port_key.udp_src = base->tp_src = flow->tp_src;
3178 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3180 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3181 &port_key, sizeof(port_key));
3186 commit_set_priority_action(const struct flow *flow, struct flow *base,
3187 struct ofpbuf *odp_actions,
3188 struct flow_wildcards *wc)
3190 if (base->skb_priority == flow->skb_priority) {
3194 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3195 base->skb_priority = flow->skb_priority;
3197 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3198 &base->skb_priority, sizeof(base->skb_priority));
3202 commit_set_skb_mark_action(const struct flow *flow, struct flow *base,
3203 struct ofpbuf *odp_actions,
3204 struct flow_wildcards *wc)
3206 if (base->skb_mark == flow->skb_mark) {
3210 memset(&wc->masks.skb_mark, 0xff, sizeof wc->masks.skb_mark);
3211 base->skb_mark = flow->skb_mark;
3213 odp_put_skb_mark_action(base->skb_mark, odp_actions);
3215 /* If any of the flow key data that ODP actions can modify are different in
3216 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3217 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3218 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3219 * in addition to this function if needed. Sets fields in 'wc' that are
3220 * used as part of the action. */
3222 commit_odp_actions(const struct flow *flow, struct flow *base,
3223 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3225 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3226 commit_vlan_action(flow, base, odp_actions, wc);
3227 commit_set_nw_action(flow, base, odp_actions, wc);
3228 commit_set_port_action(flow, base, odp_actions, wc);
3229 /* Committing MPLS actions should occur after committing nw and port
3230 * actions. This is because committing MPLS actions may alter a packet so
3231 * that it is no longer IP and thus nw and port actions are no longer valid.
3233 commit_mpls_action(flow, base, odp_actions, wc);
3234 commit_set_priority_action(flow, base, odp_actions, wc);
3235 commit_set_skb_mark_action(flow, base, odp_actions, wc);