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:
90 /* Returns a string form of 'attr'. The return value is either a statically
91 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
92 * should be at least OVS_KEY_ATTR_BUFSIZE. */
93 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
95 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
98 case OVS_KEY_ATTR_UNSPEC: return "unspec";
99 case OVS_KEY_ATTR_ENCAP: return "encap";
100 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
101 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
102 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
103 case OVS_KEY_ATTR_IN_PORT: return "in_port";
104 case OVS_KEY_ATTR_ETHERNET: return "eth";
105 case OVS_KEY_ATTR_VLAN: return "vlan";
106 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
107 case OVS_KEY_ATTR_IPV4: return "ipv4";
108 case OVS_KEY_ATTR_IPV6: return "ipv6";
109 case OVS_KEY_ATTR_TCP: return "tcp";
110 case OVS_KEY_ATTR_UDP: return "udp";
111 case OVS_KEY_ATTR_ICMP: return "icmp";
112 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
113 case OVS_KEY_ATTR_ARP: return "arp";
114 case OVS_KEY_ATTR_ND: return "nd";
115 case OVS_KEY_ATTR_MPLS: return "mpls";
117 case __OVS_KEY_ATTR_MAX:
119 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
125 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
127 size_t len = nl_attr_get_size(a);
129 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
131 const uint8_t *unspec;
134 unspec = nl_attr_get(a);
135 for (i = 0; i < len; i++) {
136 ds_put_char(ds, i ? ' ': '(');
137 ds_put_format(ds, "%02x", unspec[i]);
139 ds_put_char(ds, ')');
144 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
146 static const struct nl_policy ovs_sample_policy[] = {
147 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
148 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
150 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
152 const struct nlattr *nla_acts;
155 ds_put_cstr(ds, "sample");
157 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
158 ds_put_cstr(ds, "(error)");
162 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
165 ds_put_format(ds, "(sample=%.1f%%,", percentage);
167 ds_put_cstr(ds, "actions(");
168 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
169 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
170 format_odp_actions(ds, nla_acts, len);
171 ds_put_format(ds, "))");
175 slow_path_reason_to_string(enum slow_path_reason reason)
186 case SLOW_CONTROLLER:
194 static enum slow_path_reason
195 string_to_slow_path_reason(const char *string)
197 enum slow_path_reason i;
199 for (i = 1; i < __SLOW_MAX; i++) {
200 if (!strcmp(string, slow_path_reason_to_string(i))) {
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 (sscanf(&s[n], "%lli%n", &flags, &n0) > 0 && n0 > 0) {
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,
266 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
267 const struct nlattr *userdata_attr;
269 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
270 ds_put_cstr(ds, "userspace(error)");
274 ds_put_format(ds, "userspace(pid=%"PRIu32,
275 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
277 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
280 const uint8_t *userdata = nl_attr_get(userdata_attr);
281 size_t userdata_len = nl_attr_get_size(userdata_attr);
282 bool userdata_unspec = true;
283 union user_action_cookie cookie;
285 if (userdata_len >= sizeof cookie.type
286 && userdata_len <= sizeof cookie) {
288 memset(&cookie, 0, sizeof cookie);
289 memcpy(&cookie, userdata, userdata_len);
291 userdata_unspec = false;
293 if (userdata_len == sizeof cookie.sflow
294 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
295 ds_put_format(ds, ",sFlow("
296 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
297 vlan_tci_to_vid(cookie.sflow.vlan_tci),
298 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
299 cookie.sflow.output);
300 } else if (userdata_len == sizeof cookie.slow_path
301 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
303 reason = slow_path_reason_to_string(cookie.slow_path.reason);
304 reason = reason ? reason : "";
305 ds_put_format(ds, ",slow_path(%s)", reason);
306 } else if (userdata_len == sizeof cookie.flow_sample
307 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
308 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
309 ",collector_set_id=%"PRIu32
310 ",obs_domain_id=%"PRIu32
311 ",obs_point_id=%"PRIu32")",
312 cookie.flow_sample.probability,
313 cookie.flow_sample.collector_set_id,
314 cookie.flow_sample.obs_domain_id,
315 cookie.flow_sample.obs_point_id);
316 } else if (userdata_len == sizeof cookie.ipfix
317 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
318 ds_put_format(ds, ",ipfix");
320 userdata_unspec = true;
324 if (userdata_unspec) {
326 ds_put_format(ds, ",userdata(");
327 for (i = 0; i < userdata_len; i++) {
328 ds_put_format(ds, "%02x", userdata[i]);
330 ds_put_char(ds, ')');
334 ds_put_char(ds, ')');
338 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
340 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
341 vlan_tci_to_vid(vlan_tci),
342 vlan_tci_to_pcp(vlan_tci));
343 if (!(vlan_tci & htons(VLAN_CFI))) {
344 ds_put_cstr(ds, ",cfi=0");
349 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
351 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
352 mpls_lse_to_label(mpls_lse),
353 mpls_lse_to_tc(mpls_lse),
354 mpls_lse_to_ttl(mpls_lse),
355 mpls_lse_to_bos(mpls_lse));
359 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
360 const struct ovs_key_mpls *mpls_mask)
362 ovs_be32 key = mpls_key->mpls_lse;
364 if (mpls_mask == NULL) {
365 format_mpls_lse(ds, key);
367 ovs_be32 mask = mpls_mask->mpls_lse;
369 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
370 mpls_lse_to_label(key), mpls_lse_to_label(mask),
371 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
372 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
373 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
378 format_odp_action(struct ds *ds, const struct nlattr *a)
381 enum ovs_action_attr type = nl_attr_type(a);
382 const struct ovs_action_push_vlan *vlan;
384 expected_len = odp_action_len(nl_attr_type(a));
385 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
386 ds_put_format(ds, "bad length %zu, expected %d for: ",
387 nl_attr_get_size(a), expected_len);
388 format_generic_odp_action(ds, a);
393 case OVS_ACTION_ATTR_OUTPUT:
394 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
396 case OVS_ACTION_ATTR_USERSPACE:
397 format_odp_userspace_action(ds, a);
399 case OVS_ACTION_ATTR_SET:
400 ds_put_cstr(ds, "set(");
401 format_odp_key_attr(nl_attr_get(a), NULL, ds);
402 ds_put_cstr(ds, ")");
404 case OVS_ACTION_ATTR_PUSH_VLAN:
405 vlan = nl_attr_get(a);
406 ds_put_cstr(ds, "push_vlan(");
407 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
408 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
410 format_vlan_tci(ds, vlan->vlan_tci);
411 ds_put_char(ds, ')');
413 case OVS_ACTION_ATTR_POP_VLAN:
414 ds_put_cstr(ds, "pop_vlan");
416 case OVS_ACTION_ATTR_PUSH_MPLS: {
417 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
418 ds_put_cstr(ds, "push_mpls(");
419 format_mpls_lse(ds, mpls->mpls_lse);
420 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
423 case OVS_ACTION_ATTR_POP_MPLS: {
424 ovs_be16 ethertype = nl_attr_get_be16(a);
425 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
428 case OVS_ACTION_ATTR_SAMPLE:
429 format_odp_sample_action(ds, a);
431 case OVS_ACTION_ATTR_UNSPEC:
432 case __OVS_ACTION_ATTR_MAX:
434 format_generic_odp_action(ds, a);
440 format_odp_actions(struct ds *ds, const struct nlattr *actions,
444 const struct nlattr *a;
447 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
449 ds_put_char(ds, ',');
451 format_odp_action(ds, a);
456 if (left == actions_len) {
457 ds_put_cstr(ds, "<empty>");
459 ds_put_format(ds, ",***%u leftover bytes*** (", left);
460 for (i = 0; i < left; i++) {
461 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
463 ds_put_char(ds, ')');
466 ds_put_cstr(ds, "drop");
471 parse_odp_action(const char *s, const struct simap *port_names,
472 struct ofpbuf *actions)
474 /* Many of the sscanf calls in this function use oversized destination
475 * fields because some sscanf() implementations truncate the range of %i
476 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
477 * value of 0x7fff. The other alternatives are to allow only a single
478 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
481 * The tun_id parser has to use an alternative approach because there is no
482 * type larger than 64 bits. */
485 unsigned long long int port;
488 if (sscanf(s, "%lli%n", &port, &n) > 0 && n > 0) {
489 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
495 int len = strcspn(s, delimiters);
496 struct simap_node *node;
498 node = simap_find_len(port_names, s, len);
500 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
506 unsigned long long int pid;
507 unsigned long long int output;
508 unsigned long long int probability;
509 unsigned long long int collector_set_id;
510 unsigned long long int obs_domain_id;
511 unsigned long long int obs_point_id;
515 if (sscanf(s, "userspace(pid=%lli)%n", &pid, &n) > 0 && n > 0) {
516 odp_put_userspace_action(pid, NULL, 0, actions);
518 } else if (sscanf(s, "userspace(pid=%lli,sFlow(vid=%i,"
519 "pcp=%i,output=%lli))%n",
520 &pid, &vid, &pcp, &output, &n) > 0 && n > 0) {
521 union user_action_cookie cookie;
524 tci = vid | (pcp << VLAN_PCP_SHIFT);
529 cookie.type = USER_ACTION_COOKIE_SFLOW;
530 cookie.sflow.vlan_tci = htons(tci);
531 cookie.sflow.output = output;
532 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
535 } else if (sscanf(s, "userspace(pid=%lli,slow_path(%n", &pid, &n) > 0
537 union user_action_cookie cookie;
540 if (s[n] == ')' && s[n + 1] == ')') {
543 } else if (sscanf(s + n, "%31[^)]))", reason) > 0) {
544 n += strlen(reason) + 2;
549 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
550 cookie.slow_path.unused = 0;
551 cookie.slow_path.reason = string_to_slow_path_reason(reason);
553 if (reason[0] && !cookie.slow_path.reason) {
557 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
560 } else if (sscanf(s, "userspace(pid=%lli,flow_sample(probability=%lli,"
561 "collector_set_id=%lli,obs_domain_id=%lli,"
562 "obs_point_id=%lli))%n",
563 &pid, &probability, &collector_set_id,
564 &obs_domain_id, &obs_point_id, &n) > 0 && n > 0) {
565 union user_action_cookie cookie;
567 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
568 cookie.flow_sample.probability = probability;
569 cookie.flow_sample.collector_set_id = collector_set_id;
570 cookie.flow_sample.obs_domain_id = obs_domain_id;
571 cookie.flow_sample.obs_point_id = obs_point_id;
572 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
575 } else if (sscanf(s, "userspace(pid=%lli,ipfix)%n", &pid, &n) > 0
577 union user_action_cookie cookie;
579 cookie.type = USER_ACTION_COOKIE_IPFIX;
580 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
583 } else if (sscanf(s, "userspace(pid=%lli,userdata(%n", &pid, &n) > 0
588 ofpbuf_init(&buf, 16);
589 end = ofpbuf_put_hex(&buf, &s[n], NULL);
590 if (end[0] == ')' && end[1] == ')') {
591 odp_put_userspace_action(pid, buf.data, buf.size, actions);
593 return (end + 2) - s;
598 if (!strncmp(s, "set(", 4)) {
602 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
603 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
607 if (s[retval + 4] != ')') {
610 nl_msg_end_nested(actions, start_ofs);
615 struct ovs_action_push_vlan push;
616 int tpid = ETH_TYPE_VLAN;
621 if ((sscanf(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n) > 0
623 || (sscanf(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
624 &vid, &pcp, &cfi, &n) > 0 && n > 0)
625 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
626 &tpid, &vid, &pcp, &n) > 0 && n > 0)
627 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
628 &tpid, &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
629 push.vlan_tpid = htons(tpid);
630 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
631 | (pcp << VLAN_PCP_SHIFT)
632 | (cfi ? VLAN_CFI : 0));
633 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
640 if (!strncmp(s, "pop_vlan", 8)) {
641 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
649 if (sscanf(s, "sample(sample=%lf%%,actions(%n", &percentage, &n) > 0
650 && percentage >= 0. && percentage <= 100.0
652 size_t sample_ofs, actions_ofs;
655 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
656 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
657 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
658 (probability <= 0 ? 0
659 : probability >= UINT32_MAX ? UINT32_MAX
662 actions_ofs = nl_msg_start_nested(actions,
663 OVS_SAMPLE_ATTR_ACTIONS);
667 n += strspn(s + n, delimiters);
672 retval = parse_odp_action(s + n, port_names, actions);
678 nl_msg_end_nested(actions, actions_ofs);
679 nl_msg_end_nested(actions, sample_ofs);
681 return s[n + 1] == ')' ? n + 2 : -EINVAL;
688 /* Parses the string representation of datapath actions, in the format output
689 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
690 * value. On success, the ODP actions are appended to 'actions' as a series of
691 * Netlink attributes. On failure, no data is appended to 'actions'. Either
692 * way, 'actions''s data might be reallocated. */
694 odp_actions_from_string(const char *s, const struct simap *port_names,
695 struct ofpbuf *actions)
699 if (!strcasecmp(s, "drop")) {
703 old_size = actions->size;
707 s += strspn(s, delimiters);
712 retval = parse_odp_action(s, port_names, actions);
713 if (retval < 0 || !strchr(delimiters, s[retval])) {
714 actions->size = old_size;
723 /* Returns the correct length of the payload for a flow key attribute of the
724 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
725 * is variable length. */
727 odp_flow_key_attr_len(uint16_t type)
729 if (type > OVS_KEY_ATTR_MAX) {
733 switch ((enum ovs_key_attr) type) {
734 case OVS_KEY_ATTR_ENCAP: return -2;
735 case OVS_KEY_ATTR_PRIORITY: return 4;
736 case OVS_KEY_ATTR_SKB_MARK: return 4;
737 case OVS_KEY_ATTR_TUNNEL: return -2;
738 case OVS_KEY_ATTR_IN_PORT: return 4;
739 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
740 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
741 case OVS_KEY_ATTR_ETHERTYPE: return 2;
742 case OVS_KEY_ATTR_MPLS: return sizeof(struct ovs_key_mpls);
743 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
744 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
745 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
746 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
747 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
748 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
749 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
750 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
752 case OVS_KEY_ATTR_UNSPEC:
753 case __OVS_KEY_ATTR_MAX:
761 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
763 size_t len = nl_attr_get_size(a);
765 const uint8_t *unspec;
768 unspec = nl_attr_get(a);
769 for (i = 0; i < len; i++) {
771 ds_put_char(ds, ' ');
773 ds_put_format(ds, "%02x", unspec[i]);
779 ovs_frag_type_to_string(enum ovs_frag_type type)
782 case OVS_FRAG_TYPE_NONE:
784 case OVS_FRAG_TYPE_FIRST:
786 case OVS_FRAG_TYPE_LATER:
788 case __OVS_FRAG_TYPE_MAX:
795 tunnel_key_attr_len(int type)
798 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
799 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
800 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
801 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
802 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
803 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
804 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
805 case __OVS_TUNNEL_KEY_ATTR_MAX:
812 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
815 const struct nlattr *a;
817 bool unknown = false;
819 NL_NESTED_FOR_EACH(a, left, attr) {
820 uint16_t type = nl_attr_type(a);
821 size_t len = nl_attr_get_size(a);
822 int expected_len = tunnel_key_attr_len(type);
824 if (len != expected_len && expected_len >= 0) {
825 return ODP_FIT_ERROR;
829 case OVS_TUNNEL_KEY_ATTR_ID:
830 tun->tun_id = nl_attr_get_be64(a);
831 tun->flags |= FLOW_TNL_F_KEY;
833 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
834 tun->ip_src = nl_attr_get_be32(a);
836 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
837 tun->ip_dst = nl_attr_get_be32(a);
839 case OVS_TUNNEL_KEY_ATTR_TOS:
840 tun->ip_tos = nl_attr_get_u8(a);
842 case OVS_TUNNEL_KEY_ATTR_TTL:
843 tun->ip_ttl = nl_attr_get_u8(a);
846 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
847 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
849 case OVS_TUNNEL_KEY_ATTR_CSUM:
850 tun->flags |= FLOW_TNL_F_CSUM;
853 /* Allow this to show up as unexpected, if there are unknown
854 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
861 return ODP_FIT_ERROR;
864 return ODP_FIT_TOO_MUCH;
866 return ODP_FIT_PERFECT;
870 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
874 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
876 if (tun_key->flags & FLOW_TNL_F_KEY) {
877 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
879 if (tun_key->ip_src) {
880 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
882 if (tun_key->ip_dst) {
883 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
885 if (tun_key->ip_tos) {
886 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
888 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
889 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
890 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
892 if (tun_key->flags & FLOW_TNL_F_CSUM) {
893 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
896 nl_msg_end_nested(a, tun_key_ofs);
900 odp_mask_attr_is_exact(const struct nlattr *ma)
902 bool is_exact = false;
903 enum ovs_key_attr attr = nl_attr_type(ma);
905 if (attr == OVS_KEY_ATTR_TUNNEL) {
906 /* XXX this is a hack for now. Should change
907 * the exact match dection to per field
908 * instead of per attribute.
910 struct flow_tnl tun_mask;
911 memset(&tun_mask, 0, sizeof tun_mask);
912 odp_tun_key_from_attr(ma, &tun_mask);
913 if (tun_mask.flags == (FLOW_TNL_F_KEY
914 | FLOW_TNL_F_DONT_FRAGMENT
915 | FLOW_TNL_F_CSUM)) {
916 /* The flags are exact match, check the remaining fields. */
917 tun_mask.flags = 0xffff;
918 is_exact = is_all_ones((uint8_t *)&tun_mask,
919 offsetof(struct flow_tnl, ip_ttl));
922 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
930 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
933 struct flow_tnl tun_key;
934 enum ovs_key_attr attr = nl_attr_type(a);
935 char namebuf[OVS_KEY_ATTR_BUFSIZE];
938 if (ma && odp_mask_attr_is_exact(ma)) {
942 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
945 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
946 if (expected_len != -2) {
947 bool bad_key_len = nl_attr_get_size(a) != expected_len;
948 bool bad_mask_len = ma && nl_attr_get_size(a) != expected_len;
950 if (bad_key_len || bad_mask_len) {
952 ds_put_format(ds, "(bad key length %zu, expected %d)(",
954 odp_flow_key_attr_len(nl_attr_type(a)));
956 format_generic_odp_key(a, ds);
958 ds_put_char(ds, '/');
959 ds_put_format(ds, "(bad mask length %zu, expected %d)(",
960 nl_attr_get_size(ma),
961 odp_flow_key_attr_len(nl_attr_type(ma)));
963 format_generic_odp_key(ma, ds);
964 ds_put_char(ds, ')');
970 ds_put_char(ds, '(');
972 case OVS_KEY_ATTR_ENCAP:
973 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
974 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
975 nl_attr_get(ma), nl_attr_get_size(ma), ds);
976 } else if (nl_attr_get_size(a)) {
977 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, ds);
981 case OVS_KEY_ATTR_PRIORITY:
982 case OVS_KEY_ATTR_SKB_MARK:
983 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
985 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
989 case OVS_KEY_ATTR_TUNNEL:
990 memset(&tun_key, 0, sizeof tun_key);
991 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
992 ds_put_format(ds, "error");
994 struct flow_tnl tun_mask;
996 memset(&tun_mask, 0, sizeof tun_mask);
997 odp_tun_key_from_attr(ma, &tun_mask);
998 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
999 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1000 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1002 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1003 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1004 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1005 tun_key.ip_tos, tun_mask.ip_tos,
1006 tun_key.ip_ttl, tun_mask.ip_ttl);
1008 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1010 /* XXX This code is correct, but enabling it would break the unit
1011 test. Disable it for now until the input parser is fixed.
1013 ds_put_char(ds, '/');
1014 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1016 ds_put_char(ds, ')');
1018 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1019 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1020 ntohll(tun_key.tun_id),
1021 IP_ARGS(tun_key.ip_src),
1022 IP_ARGS(tun_key.ip_dst),
1023 tun_key.ip_tos, tun_key.ip_ttl);
1025 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1026 ds_put_char(ds, ')');
1030 case OVS_KEY_ATTR_IN_PORT:
1031 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1033 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1037 case OVS_KEY_ATTR_ETHERNET:
1039 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1040 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1042 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1043 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1044 ETH_ADDR_ARGS(eth_key->eth_src),
1045 ETH_ADDR_ARGS(eth_mask->eth_src),
1046 ETH_ADDR_ARGS(eth_key->eth_dst),
1047 ETH_ADDR_ARGS(eth_mask->eth_dst));
1049 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1051 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1052 ETH_ADDR_ARGS(eth_key->eth_src),
1053 ETH_ADDR_ARGS(eth_key->eth_dst));
1057 case OVS_KEY_ATTR_VLAN:
1059 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1061 ovs_be16 mask = nl_attr_get_be16(ma);
1062 ds_put_format(ds, "vid=%"PRIu16"/%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1063 vlan_tci_to_vid(vlan_tci),
1064 vlan_tci_to_vid(mask),
1065 vlan_tci_to_pcp(vlan_tci),
1066 vlan_tci_to_pcp(mask),
1067 vlan_tci_to_cfi(vlan_tci),
1068 vlan_tci_to_cfi(mask));
1070 format_vlan_tci(ds, vlan_tci);
1075 case OVS_KEY_ATTR_MPLS: {
1076 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1077 const struct ovs_key_mpls *mpls_mask = NULL;
1079 mpls_mask = nl_attr_get(ma);
1081 format_mpls(ds, mpls_key, mpls_mask);
1085 case OVS_KEY_ATTR_ETHERTYPE:
1086 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1088 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1092 case OVS_KEY_ATTR_IPV4:
1094 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1095 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1097 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1098 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1099 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1100 IP_ARGS(ipv4_key->ipv4_src),
1101 IP_ARGS(ipv4_mask->ipv4_src),
1102 IP_ARGS(ipv4_key->ipv4_dst),
1103 IP_ARGS(ipv4_mask->ipv4_dst),
1104 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1105 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1106 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1107 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1108 ipv4_mask->ipv4_frag);
1110 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1112 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1113 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1114 IP_ARGS(ipv4_key->ipv4_src),
1115 IP_ARGS(ipv4_key->ipv4_dst),
1116 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1118 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1122 case OVS_KEY_ATTR_IPV6:
1124 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1125 char src_str[INET6_ADDRSTRLEN];
1126 char dst_str[INET6_ADDRSTRLEN];
1127 char src_mask[INET6_ADDRSTRLEN];
1128 char dst_mask[INET6_ADDRSTRLEN];
1130 ipv6_key = nl_attr_get(a);
1131 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1132 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1134 ipv6_mask = nl_attr_get(ma);
1135 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1136 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1138 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1139 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1140 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1141 src_str, src_mask, dst_str, dst_mask,
1142 ntohl(ipv6_key->ipv6_label),
1143 ntohl(ipv6_mask->ipv6_label),
1144 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1145 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1146 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1147 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1148 ipv6_mask->ipv6_frag);
1150 const struct ovs_key_ipv6 *ipv6_key;
1151 char src_str[INET6_ADDRSTRLEN];
1152 char dst_str[INET6_ADDRSTRLEN];
1154 ipv6_key = nl_attr_get(a);
1155 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1156 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1158 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1159 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1160 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1161 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1162 ipv6_key->ipv6_hlimit,
1163 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1167 case OVS_KEY_ATTR_TCP:
1169 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1170 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1172 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1173 ",dst=%"PRIu16"/%#"PRIx16,
1174 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1175 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1177 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1179 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1180 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1184 case OVS_KEY_ATTR_UDP:
1186 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1187 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1189 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1190 ",dst=%"PRIu16"/%#"PRIx16,
1191 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1192 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1194 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1196 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1197 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1201 case OVS_KEY_ATTR_ICMP:
1203 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1204 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1206 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1207 icmp_key->icmp_type, icmp_mask->icmp_type,
1208 icmp_key->icmp_code, icmp_mask->icmp_code);
1210 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1212 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1213 icmp_key->icmp_type, icmp_key->icmp_code);
1217 case OVS_KEY_ATTR_ICMPV6:
1219 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1220 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1222 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1223 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1224 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1226 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1228 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1229 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1233 case OVS_KEY_ATTR_ARP:
1235 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1236 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1238 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1239 ",op=%"PRIu16"/%#"PRIx16
1240 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1241 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1242 IP_ARGS(arp_key->arp_sip),
1243 IP_ARGS(arp_mask->arp_sip),
1244 IP_ARGS(arp_key->arp_tip),
1245 IP_ARGS(arp_mask->arp_tip),
1246 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1247 ETH_ADDR_ARGS(arp_key->arp_sha),
1248 ETH_ADDR_ARGS(arp_mask->arp_sha),
1249 ETH_ADDR_ARGS(arp_key->arp_tha),
1250 ETH_ADDR_ARGS(arp_mask->arp_tha));
1252 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1254 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1255 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1256 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1257 ntohs(arp_key->arp_op),
1258 ETH_ADDR_ARGS(arp_key->arp_sha),
1259 ETH_ADDR_ARGS(arp_key->arp_tha));
1263 case OVS_KEY_ATTR_ND: {
1264 const struct ovs_key_nd *nd_key, *nd_mask;
1265 char target[INET6_ADDRSTRLEN];
1267 nd_key = nl_attr_get(a);
1268 nd_mask = ma ? nl_attr_get(ma) : NULL;
1270 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1271 ds_put_format(ds, "target=%s", target);
1273 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1274 ds_put_format(ds, "/%s", target);
1277 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1278 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1279 ETH_ADDR_ARGS(nd_key->nd_sll));
1281 ds_put_format(ds, "/"ETH_ADDR_FMT,
1282 ETH_ADDR_ARGS(nd_mask->nd_sll));
1285 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1286 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1287 ETH_ADDR_ARGS(nd_key->nd_tll));
1289 ds_put_format(ds, "/"ETH_ADDR_FMT,
1290 ETH_ADDR_ARGS(nd_mask->nd_tll));
1296 case OVS_KEY_ATTR_UNSPEC:
1297 case __OVS_KEY_ATTR_MAX:
1299 format_generic_odp_key(a, ds);
1301 ds_put_char(ds, '/');
1302 format_generic_odp_key(ma, ds);
1306 ds_put_char(ds, ')');
1309 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1310 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1311 * 'mask_len' bytes of 'mask' which apply to 'key'. */
1313 odp_flow_format(const struct nlattr *key, size_t key_len,
1314 const struct nlattr *mask, size_t mask_len,
1318 const struct nlattr *a;
1320 bool has_ethtype_key = false;
1321 const struct nlattr *ma = NULL;
1323 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1325 ds_put_char(ds, ',');
1327 if (nl_attr_type(a) == OVS_KEY_ATTR_ETHERTYPE) {
1328 has_ethtype_key = true;
1330 if (mask && mask_len) {
1331 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1333 format_odp_key_attr(a, ma, ds);
1338 if (left == key_len) {
1339 ds_put_cstr(ds, "<empty>");
1341 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1342 for (i = 0; i < left; i++) {
1343 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1345 ds_put_char(ds, ')');
1347 if (!has_ethtype_key) {
1348 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1350 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1351 ntohs(nl_attr_get_be16(ma)));
1355 ds_put_cstr(ds, "<empty>");
1359 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1360 * OVS_KEY_ATTR_* attributes in 'key'. */
1362 odp_flow_key_format(const struct nlattr *key,
1363 size_t key_len, struct ds *ds)
1365 odp_flow_format(key, key_len, NULL, 0, ds);
1369 put_nd_key(int n, const char *nd_target_s,
1370 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
1372 struct ovs_key_nd nd_key;
1374 memset(&nd_key, 0, sizeof nd_key);
1375 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1379 memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
1382 memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
1384 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
1389 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1391 if (!strcasecmp(s, "no")) {
1392 *type = OVS_FRAG_TYPE_NONE;
1393 } else if (!strcasecmp(s, "first")) {
1394 *type = OVS_FRAG_TYPE_FIRST;
1395 } else if (!strcasecmp(s, "later")) {
1396 *type = OVS_FRAG_TYPE_LATER;
1404 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1406 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1407 (mpls_tc << MPLS_TC_SHIFT) |
1408 (mpls_ttl << MPLS_TTL_SHIFT) |
1409 (mpls_bos << MPLS_BOS_SHIFT)));
1413 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1414 struct ofpbuf *key, struct ofpbuf *mask)
1416 /* Many of the sscanf calls in this function use oversized destination
1417 * fields because some sscanf() implementations truncate the range of %i
1418 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
1419 * value of 0x7fff. The other alternatives are to allow only a single
1420 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
1423 * The tun_id parser has to use an alternative approach because there is no
1424 * type larger than 64 bits. */
1427 unsigned long long int priority;
1428 unsigned long long int priority_mask;
1431 if (mask && sscanf(s, "skb_priority(%lli/%lli)%n", &priority,
1432 &priority_mask, &n) > 0 && n > 0) {
1433 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1434 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1436 } else if (sscanf(s, "skb_priority(%lli)%n",
1437 &priority, &n) > 0 && n > 0) {
1438 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1440 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1447 unsigned long long int mark;
1448 unsigned long long int mark_mask;
1451 if (mask && sscanf(s, "skb_mark(%lli/%lli)%n", &mark,
1452 &mark_mask, &n) > 0 && n > 0) {
1453 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1454 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1456 } else if (sscanf(s, "skb_mark(%lli)%n", &mark, &n) > 0 && n > 0) {
1457 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1459 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1467 int tos, tos_mask, ttl, ttl_mask;
1468 struct flow_tnl tun_key, tun_key_mask;
1469 unsigned long long tun_id_mask;
1472 if (mask && sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF]/%llx,"
1473 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1474 "/"IP_SCAN_FMT",tos=%i/%i,ttl=%i/%i,flags%n",
1475 tun_id_s, &tun_id_mask,
1476 IP_SCAN_ARGS(&tun_key.ip_src),
1477 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1478 IP_SCAN_ARGS(&tun_key.ip_dst),
1479 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1480 &tos, &tos_mask, &ttl, &ttl_mask,
1485 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
1486 tun_key_mask.tun_id = htonll(tun_id_mask);
1487 tun_key.ip_tos = tos;
1488 tun_key_mask.ip_tos = tos_mask;
1489 tun_key.ip_ttl = ttl;
1490 tun_key_mask.ip_ttl = ttl_mask;
1491 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1492 tun_key.flags = flags;
1493 tun_key_mask.flags = UINT16_MAX;
1503 tun_key_to_attr(key, &tun_key);
1505 tun_key_to_attr(mask, &tun_key_mask);
1508 } else if (sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF],"
1509 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1510 ",tos=%i,ttl=%i,flags%n", tun_id_s,
1511 IP_SCAN_ARGS(&tun_key.ip_src),
1512 IP_SCAN_ARGS(&tun_key.ip_dst), &tos, &ttl,
1517 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
1518 tun_key.ip_tos = tos;
1519 tun_key.ip_ttl = ttl;
1520 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1521 tun_key.flags = flags;
1531 tun_key_to_attr(key, &tun_key);
1534 memset(&tun_key, 0xff, sizeof tun_key);
1535 tun_key_to_attr(mask, &tun_key);
1542 unsigned long long int in_port;
1543 unsigned long long int in_port_mask;
1546 if (mask && sscanf(s, "in_port(%lli/%lli)%n", &in_port,
1547 &in_port_mask, &n) > 0 && n > 0) {
1548 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1549 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1551 } else if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
1552 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1554 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1561 if (port_names && !strncmp(s, "in_port(", 8)) {
1563 const struct simap_node *node;
1567 name_len = strcspn(s, ")");
1568 node = simap_find_len(port_names, name, name_len);
1570 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1573 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1575 return 8 + name_len + 1;
1580 struct ovs_key_ethernet eth_key;
1581 struct ovs_key_ethernet eth_key_mask;
1584 if (mask && sscanf(s,
1585 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1586 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1587 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1588 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1589 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1590 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n) > 0 && n > 0) {
1592 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1593 ð_key, sizeof eth_key);
1594 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1595 ð_key_mask, sizeof eth_key_mask);
1597 } else if (sscanf(s,
1598 "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
1599 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1600 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
1601 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1602 ð_key, sizeof eth_key);
1605 memset(ð_key, 0xff, sizeof eth_key);
1606 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1607 ð_key, sizeof eth_key);
1614 uint16_t vid, vid_mask;
1619 if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i)%n",
1620 &vid, &vid_mask, &pcp, &pcp_mask, &n) > 0 && n > 0)) {
1621 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1622 htons((vid << VLAN_VID_SHIFT) |
1623 (pcp << VLAN_PCP_SHIFT) |
1625 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1626 htons((vid_mask << VLAN_VID_SHIFT) |
1627 (pcp_mask << VLAN_PCP_SHIFT) |
1628 (1 << VLAN_CFI_SHIFT)));
1630 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n",
1631 &vid, &pcp, &n) > 0 && n > 0)) {
1632 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1633 htons((vid << VLAN_VID_SHIFT) |
1634 (pcp << VLAN_PCP_SHIFT) |
1637 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons(UINT16_MAX));
1640 } else if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i,cfi=%i/%i)%n",
1641 &vid, &vid_mask, &pcp, &pcp_mask, &cfi, &cfi_mask, &n) > 0 && n > 0)) {
1642 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1643 htons((vid << VLAN_VID_SHIFT) |
1644 (pcp << VLAN_PCP_SHIFT) |
1645 (cfi ? VLAN_CFI : 0)));
1646 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1647 htons((vid_mask << VLAN_VID_SHIFT) |
1648 (pcp_mask << VLAN_PCP_SHIFT) |
1649 (cfi_mask << VLAN_CFI_SHIFT)));
1651 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i,cfi=%i)%n",
1652 &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
1653 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1654 htons((vid << VLAN_VID_SHIFT) |
1655 (pcp << VLAN_PCP_SHIFT) |
1656 (cfi ? VLAN_CFI : 0)));
1658 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, htons(UINT16_MAX));
1669 if (mask && sscanf(s, "eth_type(%i/%i)%n",
1670 ð_type, ð_type_mask, &n) > 0 && n > 0) {
1671 if (eth_type != 0) {
1672 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1674 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1676 } else if (sscanf(s, "eth_type(%i)%n", ð_type, &n) > 0 && n > 0) {
1677 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1679 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE,
1687 int label, tc, ttl, bos;
1688 int label_mask, tc_mask, ttl_mask, bos_mask;
1691 if (mask && sscanf(s, "mpls(label=%"SCNi32"/%"SCNi32",tc=%i/%i,ttl=%i/%i,bos=%i/%i)%n",
1692 &label, &label_mask, &tc, &tc_mask, &ttl, &ttl_mask, &bos, &bos_mask, &n) > 0 && n > 0) {
1693 struct ovs_key_mpls *mpls, *mpls_mask;
1695 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1697 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1699 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1701 mpls_mask->mpls_lse = mpls_lse_from_components(
1702 label_mask, tc_mask, ttl_mask, bos_mask);
1704 } else if (sscanf(s, "mpls(label=%"SCNi32",tc=%i,ttl=%i,bos=%i)%n",
1705 &label, &tc, &ttl, &bos, &n) > 0 &&
1707 struct ovs_key_mpls *mpls;
1709 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1711 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1713 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1715 mpls->mpls_lse = htonl(UINT32_MAX);
1723 ovs_be32 ipv4_src, ipv4_src_mask;
1724 ovs_be32 ipv4_dst, ipv4_dst_mask;
1725 int ipv4_proto, ipv4_proto_mask;
1726 int ipv4_tos, ipv4_tos_mask;
1727 int ipv4_ttl, ipv4_ttl_mask;
1730 enum ovs_frag_type ipv4_frag;
1733 if (mask && sscanf(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1734 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1735 "proto=%i/%i,tos=%i/%i,ttl=%i/%i,"
1736 "frag=%7[a-z]/%i)%n",
1737 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_src_mask),
1738 IP_SCAN_ARGS(&ipv4_dst), IP_SCAN_ARGS(&ipv4_dst_mask),
1739 &ipv4_proto, &ipv4_proto_mask,
1740 &ipv4_tos, &ipv4_tos_mask, &ipv4_ttl, &ipv4_ttl_mask,
1741 frag, &ipv4_frag_mask, &n) > 0
1743 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1744 struct ovs_key_ipv4 ipv4_key;
1745 struct ovs_key_ipv4 ipv4_mask;
1747 ipv4_key.ipv4_src = ipv4_src;
1748 ipv4_key.ipv4_dst = ipv4_dst;
1749 ipv4_key.ipv4_proto = ipv4_proto;
1750 ipv4_key.ipv4_tos = ipv4_tos;
1751 ipv4_key.ipv4_ttl = ipv4_ttl;
1752 ipv4_key.ipv4_frag = ipv4_frag;
1753 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1754 &ipv4_key, sizeof ipv4_key);
1756 ipv4_mask.ipv4_src = ipv4_src_mask;
1757 ipv4_mask.ipv4_dst = ipv4_dst_mask;
1758 ipv4_mask.ipv4_proto = ipv4_proto_mask;
1759 ipv4_mask.ipv4_tos = ipv4_tos_mask;
1760 ipv4_mask.ipv4_ttl = ipv4_ttl_mask;
1761 ipv4_mask.ipv4_frag = ipv4_frag_mask;
1762 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1763 &ipv4_mask, sizeof ipv4_mask);
1765 } else if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1766 "proto=%i,tos=%i,ttl=%i,frag=%7[a-z])%n",
1767 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_dst),
1768 &ipv4_proto, &ipv4_tos, &ipv4_ttl, frag, &n) > 0
1770 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1771 struct ovs_key_ipv4 ipv4_key;
1773 ipv4_key.ipv4_src = ipv4_src;
1774 ipv4_key.ipv4_dst = ipv4_dst;
1775 ipv4_key.ipv4_proto = ipv4_proto;
1776 ipv4_key.ipv4_tos = ipv4_tos;
1777 ipv4_key.ipv4_ttl = ipv4_ttl;
1778 ipv4_key.ipv4_frag = ipv4_frag;
1779 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1780 &ipv4_key, sizeof ipv4_key);
1783 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1784 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1785 &ipv4_key, sizeof ipv4_key);
1792 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1793 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1794 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1795 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1796 int ipv6_label, ipv6_label_mask;
1797 int ipv6_proto, ipv6_proto_mask;
1798 int ipv6_tclass, ipv6_tclass_mask;
1799 int ipv6_hlimit, ipv6_hlimit_mask;
1801 enum ovs_frag_type ipv6_frag;
1805 if (mask && sscanf(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
1806 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
1807 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
1808 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
1809 ipv6_src_s, ipv6_src_mask_s, ipv6_dst_s, ipv6_dst_mask_s,
1810 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
1811 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
1812 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
1813 &ipv6_frag_mask, &n) > 0
1815 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1816 struct ovs_key_ipv6 ipv6_key;
1817 struct ovs_key_ipv6 ipv6_mask;
1819 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1820 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
1821 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
1822 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
1826 ipv6_key.ipv6_label = htonl(ipv6_label);
1827 ipv6_key.ipv6_proto = ipv6_proto;
1828 ipv6_key.ipv6_tclass = ipv6_tclass;
1829 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1830 ipv6_key.ipv6_frag = ipv6_frag;
1831 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1832 &ipv6_key, sizeof ipv6_key);
1834 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
1835 ipv6_mask.ipv6_proto = ipv6_proto_mask;
1836 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
1837 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
1838 ipv6_mask.ipv6_frag = ipv6_frag_mask;
1839 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1840 &ipv6_mask, sizeof ipv6_mask);
1842 } else if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
1843 "label=%i,proto=%i,tclass=%i,hlimit=%i,frag=%7[a-z])%n",
1844 ipv6_src_s, ipv6_dst_s, &ipv6_label,
1845 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) > 0
1847 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1848 struct ovs_key_ipv6 ipv6_key;
1850 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1851 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1854 ipv6_key.ipv6_label = htonl(ipv6_label);
1855 ipv6_key.ipv6_proto = ipv6_proto;
1856 ipv6_key.ipv6_tclass = ipv6_tclass;
1857 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1858 ipv6_key.ipv6_frag = ipv6_frag;
1859 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1860 &ipv6_key, sizeof ipv6_key);
1863 memset(&ipv6_key, 0xff, sizeof ipv6_key);
1864 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1865 &ipv6_key, sizeof ipv6_key);
1878 if (mask && sscanf(s, "tcp(src=%i/%i,dst=%i/%i)%n",
1879 &tcp_src, &tcp_src_mask, &tcp_dst, &tcp_dst_mask, &n) > 0
1881 struct ovs_key_tcp tcp_key;
1882 struct ovs_key_tcp tcp_mask;
1884 tcp_key.tcp_src = htons(tcp_src);
1885 tcp_key.tcp_dst = htons(tcp_dst);
1886 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
1888 tcp_mask.tcp_src = htons(tcp_src_mask);
1889 tcp_mask.tcp_dst = htons(tcp_dst_mask);
1890 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
1891 &tcp_mask, sizeof tcp_mask);
1893 } else if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
1895 struct ovs_key_tcp tcp_key;
1897 tcp_key.tcp_src = htons(tcp_src);
1898 tcp_key.tcp_dst = htons(tcp_dst);
1899 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
1902 memset(&tcp_key, 0xff, sizeof tcp_key);
1903 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
1904 &tcp_key, sizeof tcp_key);
1917 if (mask && sscanf(s, "udp(src=%i/%i,dst=%i/%i)%n",
1918 &udp_src, &udp_src_mask,
1919 &udp_dst, &udp_dst_mask, &n) > 0 && n > 0) {
1920 struct ovs_key_udp udp_key;
1921 struct ovs_key_udp udp_mask;
1923 udp_key.udp_src = htons(udp_src);
1924 udp_key.udp_dst = htons(udp_dst);
1925 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1927 udp_mask.udp_src = htons(udp_src_mask);
1928 udp_mask.udp_dst = htons(udp_dst_mask);
1929 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
1930 &udp_mask, sizeof udp_mask);
1933 if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
1935 struct ovs_key_udp udp_key;
1937 udp_key.udp_src = htons(udp_src);
1938 udp_key.udp_dst = htons(udp_dst);
1939 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1942 memset(&udp_key, 0xff, sizeof udp_key);
1943 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1956 if (mask && sscanf(s, "icmp(type=%i/%i,code=%i/%i)%n",
1957 &icmp_type, &icmp_type_mask,
1958 &icmp_code, &icmp_code_mask, &n) > 0 && n > 0) {
1959 struct ovs_key_icmp icmp_key;
1960 struct ovs_key_icmp icmp_mask;
1962 icmp_key.icmp_type = icmp_type;
1963 icmp_key.icmp_code = icmp_code;
1964 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
1965 &icmp_key, sizeof icmp_key);
1967 icmp_mask.icmp_type = icmp_type_mask;
1968 icmp_mask.icmp_code = icmp_code_mask;
1969 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
1970 &icmp_mask, sizeof icmp_mask);
1972 } else if (sscanf(s, "icmp(type=%i,code=%i)%n",
1973 &icmp_type, &icmp_code, &n) > 0
1975 struct ovs_key_icmp icmp_key;
1977 icmp_key.icmp_type = icmp_type;
1978 icmp_key.icmp_code = icmp_code;
1979 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
1980 &icmp_key, sizeof icmp_key);
1982 memset(&icmp_key, 0xff, sizeof icmp_key);
1983 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
1991 struct ovs_key_icmpv6 icmpv6_key;
1992 struct ovs_key_icmpv6 icmpv6_mask;
1993 int icmpv6_type_mask;
1994 int icmpv6_code_mask;
1997 if (mask && sscanf(s, "icmpv6(type=%"SCNi8"/%i,code=%"SCNi8"/%i)%n",
1998 &icmpv6_key.icmpv6_type, &icmpv6_type_mask,
1999 &icmpv6_key.icmpv6_code, &icmpv6_code_mask, &n) > 0
2001 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2002 &icmpv6_key, sizeof icmpv6_key);
2004 icmpv6_mask.icmpv6_type = icmpv6_type_mask;
2005 icmpv6_mask.icmpv6_code = icmpv6_code_mask;
2006 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2007 sizeof icmpv6_mask);
2009 } else if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2010 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
2012 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2013 &icmpv6_key, sizeof icmpv6_key);
2016 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2017 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2025 ovs_be32 arp_sip, arp_sip_mask;
2026 ovs_be32 arp_tip, arp_tip_mask;
2027 int arp_op, arp_op_mask;
2028 uint8_t arp_sha[ETH_ADDR_LEN];
2029 uint8_t arp_sha_mask[ETH_ADDR_LEN];
2030 uint8_t arp_tha[ETH_ADDR_LEN];
2031 uint8_t arp_tha_mask[ETH_ADDR_LEN];
2034 if (mask && sscanf(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2035 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2036 "op=%i/%i,sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2037 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2038 IP_SCAN_ARGS(&arp_sip), IP_SCAN_ARGS(&arp_sip_mask),
2039 IP_SCAN_ARGS(&arp_tip), IP_SCAN_ARGS(&arp_tip_mask),
2040 &arp_op, &arp_op_mask,
2041 ETH_ADDR_SCAN_ARGS(arp_sha),
2042 ETH_ADDR_SCAN_ARGS(arp_sha_mask),
2043 ETH_ADDR_SCAN_ARGS(arp_tha),
2044 ETH_ADDR_SCAN_ARGS(arp_tha_mask), &n) > 0 && n > 0) {
2045 struct ovs_key_arp arp_key;
2046 struct ovs_key_arp arp_mask;
2048 memset(&arp_key, 0, sizeof arp_key);
2049 arp_key.arp_sip = arp_sip;
2050 arp_key.arp_tip = arp_tip;
2051 arp_key.arp_op = htons(arp_op);
2052 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2053 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
2054 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2056 arp_mask.arp_sip = arp_sip_mask;
2057 arp_mask.arp_tip = arp_tip_mask;
2058 arp_mask.arp_op = htons(arp_op_mask);
2059 memcpy(arp_mask.arp_sha, arp_sha_mask, ETH_ADDR_LEN);
2060 memcpy(arp_mask.arp_tha, arp_tha_mask, ETH_ADDR_LEN);
2061 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2062 &arp_mask, sizeof arp_mask);
2064 } else if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2065 "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
2066 IP_SCAN_ARGS(&arp_sip),
2067 IP_SCAN_ARGS(&arp_tip),
2069 ETH_ADDR_SCAN_ARGS(arp_sha),
2070 ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
2071 struct ovs_key_arp arp_key;
2073 memset(&arp_key, 0, sizeof arp_key);
2074 arp_key.arp_sip = arp_sip;
2075 arp_key.arp_tip = arp_tip;
2076 arp_key.arp_op = htons(arp_op);
2077 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2078 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
2079 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2082 memset(&arp_key, 0xff, sizeof arp_key);
2083 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2084 &arp_key, sizeof arp_key);
2091 char nd_target_s[IPV6_SCAN_LEN + 1];
2092 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2093 uint8_t nd_sll[ETH_ADDR_LEN];
2094 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2095 uint8_t nd_tll[ETH_ADDR_LEN];
2096 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2099 memset(&nd_target_mask_s[0], 0xff, sizeof nd_target_s);
2100 memset(&nd_sll_mask[0], 0xff, sizeof nd_sll);
2101 memset(&nd_tll_mask [0], 0xff, sizeof nd_tll);
2103 if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2104 nd_target_s, nd_target_mask_s, &n) > 0 && n > 0) {
2105 put_nd_key(n, nd_target_s, NULL, NULL, key);
2106 put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
2107 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
2108 nd_target_s, &n) > 0 && n > 0) {
2109 put_nd_key(n, nd_target_s, NULL, NULL, key);
2111 put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
2113 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2114 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2115 nd_target_s, nd_target_mask_s,
2116 ETH_ADDR_SCAN_ARGS(nd_sll),
2117 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n) > 0 && n > 0) {
2118 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2119 put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2120 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
2121 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
2123 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2125 put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2127 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2128 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2129 nd_target_s, nd_target_mask_s,
2130 ETH_ADDR_SCAN_ARGS(nd_tll),
2131 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n) > 0 && n > 0) {
2132 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2133 put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2134 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
2135 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2137 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2139 put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2141 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2142 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2143 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2144 nd_target_s, nd_target_mask_s,
2145 ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2146 ETH_ADDR_SCAN_ARGS(nd_tll), ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2149 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2150 put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2151 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
2152 "tll="ETH_ADDR_SCAN_FMT")%n",
2153 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2154 ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2156 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2158 put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2167 if (!strncmp(s, "encap(", 6)) {
2168 const char *start = s;
2169 size_t encap, encap_mask = 0;
2171 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2173 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2180 s += strspn(s, ", \t\r\n");
2183 } else if (*s == ')') {
2187 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2195 nl_msg_end_nested(key, encap);
2197 nl_msg_end_nested(mask, encap_mask);
2206 /* Parses the string representation of a datapath flow key, in the
2207 * format output by odp_flow_key_format(). Returns 0 if successful,
2208 * otherwise a positive errno value. On success, the flow key is
2209 * appended to 'key' as a series of Netlink attributes. On failure, no
2210 * data is appended to 'key'. Either way, 'key''s data might be
2213 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2214 * to a port number. (Port names may be used instead of port numbers in
2217 * On success, the attributes appended to 'key' are individually syntactically
2218 * valid, but they may not be valid as a sequence. 'key' might, for example,
2219 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2221 odp_flow_from_string(const char *s, const struct simap *port_names,
2222 struct ofpbuf *key, struct ofpbuf *mask)
2224 const size_t old_size = key->size;
2228 s += strspn(s, delimiters);
2233 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2235 key->size = old_size;
2245 ovs_to_odp_frag(uint8_t nw_frag)
2247 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2248 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2249 : OVS_FRAG_TYPE_LATER);
2253 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2254 const struct flow *flow, odp_port_t odp_in_port)
2257 struct ovs_key_ethernet *eth_key;
2260 /* We assume that if 'data' and 'flow' are not the same, we should
2261 * treat 'data' as a mask. */
2262 is_mask = (data != flow);
2264 if (flow->skb_priority) {
2265 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2268 if (flow->tunnel.ip_dst) {
2269 tun_key_to_attr(buf, &data->tunnel);
2272 if (flow->skb_mark) {
2273 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->skb_mark);
2276 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2277 * is not the magical value "ODPP_NONE". */
2278 if (is_mask || odp_in_port != ODPP_NONE) {
2279 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2282 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2284 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2285 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2287 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2289 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(UINT16_MAX));
2291 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2293 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2294 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2295 if (flow->vlan_tci == htons(0)) {
2302 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2303 /* For backwards compatibility with kernels that don't support
2304 * wildcarding, the following convention is used to encode the
2305 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2308 * -------- -------- -------
2309 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2310 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2311 * <none> 0xffff Any non-Ethernet II frame (except valid
2312 * 802.3 SNAP packet with valid eth_type).
2315 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2320 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2322 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2323 struct ovs_key_ipv4 *ipv4_key;
2325 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2327 ipv4_key->ipv4_src = data->nw_src;
2328 ipv4_key->ipv4_dst = data->nw_dst;
2329 ipv4_key->ipv4_proto = data->nw_proto;
2330 ipv4_key->ipv4_tos = data->nw_tos;
2331 ipv4_key->ipv4_ttl = data->nw_ttl;
2332 ipv4_key->ipv4_frag = ovs_to_odp_frag(data->nw_frag);
2333 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2334 struct ovs_key_ipv6 *ipv6_key;
2336 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2338 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2339 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2340 ipv6_key->ipv6_label = data->ipv6_label;
2341 ipv6_key->ipv6_proto = data->nw_proto;
2342 ipv6_key->ipv6_tclass = data->nw_tos;
2343 ipv6_key->ipv6_hlimit = data->nw_ttl;
2344 ipv6_key->ipv6_frag = ovs_to_odp_frag(flow->nw_frag);
2345 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2346 flow->dl_type == htons(ETH_TYPE_RARP)) {
2347 struct ovs_key_arp *arp_key;
2349 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
2351 memset(arp_key, 0, sizeof *arp_key);
2352 arp_key->arp_sip = data->nw_src;
2353 arp_key->arp_tip = data->nw_dst;
2354 arp_key->arp_op = htons(data->nw_proto);
2355 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2356 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2359 if (flow->mpls_depth) {
2360 struct ovs_key_mpls *mpls_key;
2362 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2364 mpls_key->mpls_lse = data->mpls_lse;
2367 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2368 if (flow->nw_proto == IPPROTO_TCP) {
2369 struct ovs_key_tcp *tcp_key;
2371 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2373 tcp_key->tcp_src = data->tp_src;
2374 tcp_key->tcp_dst = data->tp_dst;
2375 } else if (flow->nw_proto == IPPROTO_UDP) {
2376 struct ovs_key_udp *udp_key;
2378 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2380 udp_key->udp_src = data->tp_src;
2381 udp_key->udp_dst = data->tp_dst;
2382 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2383 && flow->nw_proto == IPPROTO_ICMP) {
2384 struct ovs_key_icmp *icmp_key;
2386 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2388 icmp_key->icmp_type = ntohs(data->tp_src);
2389 icmp_key->icmp_code = ntohs(data->tp_dst);
2390 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2391 && flow->nw_proto == IPPROTO_ICMPV6) {
2392 struct ovs_key_icmpv6 *icmpv6_key;
2394 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2395 sizeof *icmpv6_key);
2396 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2397 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2399 if (icmpv6_key->icmpv6_type == ND_NEIGHBOR_SOLICIT
2400 || icmpv6_key->icmpv6_type == ND_NEIGHBOR_ADVERT) {
2401 struct ovs_key_nd *nd_key;
2403 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2405 memcpy(nd_key->nd_target, &data->nd_target,
2406 sizeof nd_key->nd_target);
2407 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2408 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2415 nl_msg_end_nested(buf, encap);
2419 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2420 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2421 * number rather than a datapath port number). Instead, if 'odp_in_port'
2422 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2425 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2426 * capable of being expanded to allow for that much space. */
2428 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2429 odp_port_t odp_in_port)
2431 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port);
2434 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2435 * 'buf'. 'flow' is used as a template to determine how to interpret
2436 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2437 * it doesn't indicate whether the other fields should be interpreted as
2438 * ARP, IPv4, IPv6, etc.
2440 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2441 * capable of being expanded to allow for that much space. */
2443 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2444 const struct flow *flow, uint32_t odp_in_port_mask)
2446 odp_flow_key_from_flow__(buf, mask, flow, u32_to_odp(odp_in_port_mask));
2450 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2452 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2453 return hash_words((const uint32_t *) key, key_len / sizeof(uint32_t), 0);
2457 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2458 uint64_t attrs, int out_of_range_attr,
2459 const struct nlattr *key, size_t key_len)
2464 if (VLOG_DROP_DBG(rl)) {
2469 for (i = 0; i < 64; i++) {
2470 if (attrs & (UINT64_C(1) << i)) {
2471 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2473 ds_put_format(&s, " %s",
2474 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2477 if (out_of_range_attr) {
2478 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2481 ds_put_cstr(&s, ": ");
2482 odp_flow_key_format(key, key_len, &s);
2484 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2489 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2491 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2493 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2494 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2498 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2499 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2500 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2501 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2508 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2509 const struct nlattr *attrs[], uint64_t *present_attrsp,
2510 int *out_of_range_attrp)
2512 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2513 const struct nlattr *nla;
2514 uint64_t present_attrs;
2517 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2519 *out_of_range_attrp = 0;
2520 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2521 uint16_t type = nl_attr_type(nla);
2522 size_t len = nl_attr_get_size(nla);
2523 int expected_len = odp_flow_key_attr_len(type);
2525 if (len != expected_len && expected_len >= 0) {
2526 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2528 VLOG_ERR_RL(&rl, "attribute %s has length %zu but should have "
2529 "length %d", ovs_key_attr_to_string(type, namebuf,
2535 if (type > OVS_KEY_ATTR_MAX) {
2536 *out_of_range_attrp = type;
2538 if (present_attrs & (UINT64_C(1) << type)) {
2539 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2541 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2542 ovs_key_attr_to_string(type,
2543 namebuf, sizeof namebuf));
2547 present_attrs |= UINT64_C(1) << type;
2552 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2556 *present_attrsp = present_attrs;
2560 static enum odp_key_fitness
2561 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2562 uint64_t expected_attrs,
2563 const struct nlattr *key, size_t key_len)
2565 uint64_t missing_attrs;
2566 uint64_t extra_attrs;
2568 missing_attrs = expected_attrs & ~present_attrs;
2569 if (missing_attrs) {
2570 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2571 log_odp_key_attributes(&rl, "expected but not present",
2572 missing_attrs, 0, key, key_len);
2573 return ODP_FIT_TOO_LITTLE;
2576 extra_attrs = present_attrs & ~expected_attrs;
2577 if (extra_attrs || out_of_range_attr) {
2578 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2579 log_odp_key_attributes(&rl, "present but not expected",
2580 extra_attrs, out_of_range_attr, key, key_len);
2581 return ODP_FIT_TOO_MUCH;
2584 return ODP_FIT_PERFECT;
2588 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2589 uint64_t present_attrs, uint64_t *expected_attrs,
2592 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2594 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2595 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2596 if (ntohs(flow->dl_type) < 1536) {
2597 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2598 ntohs(flow->dl_type));
2601 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2603 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2608 static enum odp_key_fitness
2609 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2610 uint64_t present_attrs, int out_of_range_attr,
2611 uint64_t expected_attrs, struct flow *flow,
2612 const struct nlattr *key, size_t key_len)
2614 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2616 if (eth_type_mpls(flow->dl_type)) {
2617 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2619 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2620 return ODP_FIT_TOO_LITTLE;
2622 flow->mpls_lse = nl_attr_get_be32(attrs[OVS_KEY_ATTR_MPLS]);
2624 } else if (flow->dl_type == htons(ETH_TYPE_IP)) {
2625 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
2626 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
2627 const struct ovs_key_ipv4 *ipv4_key;
2629 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
2630 flow->nw_src = ipv4_key->ipv4_src;
2631 flow->nw_dst = ipv4_key->ipv4_dst;
2632 flow->nw_proto = ipv4_key->ipv4_proto;
2633 flow->nw_tos = ipv4_key->ipv4_tos;
2634 flow->nw_ttl = ipv4_key->ipv4_ttl;
2635 if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
2636 return ODP_FIT_ERROR;
2639 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2640 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
2641 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
2642 const struct ovs_key_ipv6 *ipv6_key;
2644 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
2645 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
2646 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
2647 flow->ipv6_label = ipv6_key->ipv6_label;
2648 flow->nw_proto = ipv6_key->ipv6_proto;
2649 flow->nw_tos = ipv6_key->ipv6_tclass;
2650 flow->nw_ttl = ipv6_key->ipv6_hlimit;
2651 if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
2652 return ODP_FIT_ERROR;
2655 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2656 flow->dl_type == htons(ETH_TYPE_RARP)) {
2657 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
2658 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
2659 const struct ovs_key_arp *arp_key;
2661 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
2662 flow->nw_src = arp_key->arp_sip;
2663 flow->nw_dst = arp_key->arp_tip;
2664 if (arp_key->arp_op & htons(0xff00)) {
2665 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
2666 "key", ntohs(arp_key->arp_op));
2667 return ODP_FIT_ERROR;
2669 flow->nw_proto = ntohs(arp_key->arp_op);
2670 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
2671 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
2675 if (flow->nw_proto == IPPROTO_TCP
2676 && (flow->dl_type == htons(ETH_TYPE_IP) ||
2677 flow->dl_type == htons(ETH_TYPE_IPV6))
2678 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2679 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
2680 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
2681 const struct ovs_key_tcp *tcp_key;
2683 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
2684 flow->tp_src = tcp_key->tcp_src;
2685 flow->tp_dst = tcp_key->tcp_dst;
2687 } else if (flow->nw_proto == IPPROTO_UDP
2688 && (flow->dl_type == htons(ETH_TYPE_IP) ||
2689 flow->dl_type == htons(ETH_TYPE_IPV6))
2690 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2691 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
2692 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
2693 const struct ovs_key_udp *udp_key;
2695 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
2696 flow->tp_src = udp_key->udp_src;
2697 flow->tp_dst = udp_key->udp_dst;
2699 } else if (flow->nw_proto == IPPROTO_ICMP
2700 && flow->dl_type == htons(ETH_TYPE_IP)
2701 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2702 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
2703 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
2704 const struct ovs_key_icmp *icmp_key;
2706 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
2707 flow->tp_src = htons(icmp_key->icmp_type);
2708 flow->tp_dst = htons(icmp_key->icmp_code);
2710 } else if (flow->nw_proto == IPPROTO_ICMPV6
2711 && flow->dl_type == htons(ETH_TYPE_IPV6)
2712 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2713 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
2714 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
2715 const struct ovs_key_icmpv6 *icmpv6_key;
2717 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
2718 flow->tp_src = htons(icmpv6_key->icmpv6_type);
2719 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
2721 if (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2722 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) {
2723 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
2724 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
2725 const struct ovs_key_nd *nd_key;
2727 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
2728 memcpy(&flow->nd_target, nd_key->nd_target,
2729 sizeof flow->nd_target);
2730 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
2731 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
2737 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
2741 /* Parse 802.1Q header then encapsulated L3 attributes. */
2742 static enum odp_key_fitness
2743 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2744 uint64_t present_attrs, int out_of_range_attr,
2745 uint64_t expected_attrs, struct flow *flow,
2746 const struct nlattr *key, size_t key_len)
2748 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2750 const struct nlattr *encap
2751 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
2752 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
2753 enum odp_key_fitness encap_fitness;
2754 enum odp_key_fitness fitness;
2757 /* Calculate fitness of outer attributes. */
2758 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
2759 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
2760 fitness = check_expectations(present_attrs, out_of_range_attr,
2761 expected_attrs, key, key_len);
2763 /* Get the VLAN TCI value. */
2764 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
2765 return ODP_FIT_TOO_LITTLE;
2767 tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
2768 if (tci == htons(0)) {
2769 /* Corner case for a truncated 802.1Q header. */
2770 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
2771 return ODP_FIT_TOO_MUCH;
2774 } else if (!(tci & htons(VLAN_CFI))) {
2775 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
2776 "but CFI bit is not set", ntohs(tci));
2777 return ODP_FIT_ERROR;
2781 * Remove the TPID from dl_type since it's not the real Ethertype. */
2782 flow->vlan_tci = tci;
2783 flow->dl_type = htons(0);
2785 /* Now parse the encapsulated attributes. */
2786 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
2787 attrs, &present_attrs, &out_of_range_attr)) {
2788 return ODP_FIT_ERROR;
2792 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
2793 return ODP_FIT_ERROR;
2795 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
2796 expected_attrs, flow, key, key_len);
2798 /* The overall fitness is the worse of the outer and inner attributes. */
2799 return MAX(fitness, encap_fitness);
2802 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
2803 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
2804 * 'key' fits our expectations for what a flow key should contain.
2806 * The 'in_port' will be the datapath's understanding of the port. The
2807 * caller will need to translate with odp_port_to_ofp_port() if the
2808 * OpenFlow port is needed.
2810 * This function doesn't take the packet itself as an argument because none of
2811 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
2812 * it is always possible to infer which additional attribute(s) should appear
2813 * by looking at the attributes for lower-level protocols, e.g. if the network
2814 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
2815 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
2816 * must be absent. */
2817 enum odp_key_fitness
2818 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
2821 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
2822 uint64_t expected_attrs;
2823 uint64_t present_attrs;
2824 int out_of_range_attr;
2826 memset(flow, 0, sizeof *flow);
2828 /* Parse attributes. */
2829 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
2830 &out_of_range_attr)) {
2831 return ODP_FIT_ERROR;
2836 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
2837 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
2838 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
2841 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
2842 flow->skb_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
2843 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
2846 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
2847 enum odp_key_fitness res;
2849 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
2850 if (res == ODP_FIT_ERROR) {
2851 return ODP_FIT_ERROR;
2852 } else if (res == ODP_FIT_PERFECT) {
2853 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
2857 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
2858 flow->in_port.odp_port
2859 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
2860 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
2862 flow->in_port.odp_port = ODPP_NONE;
2865 /* Ethernet header. */
2866 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
2867 const struct ovs_key_ethernet *eth_key;
2869 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
2870 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
2871 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
2873 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
2875 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
2876 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
2877 return ODP_FIT_ERROR;
2880 if (flow->dl_type == htons(ETH_TYPE_VLAN)) {
2881 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
2882 expected_attrs, flow, key, key_len);
2884 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
2885 expected_attrs, flow, key, key_len);
2888 /* Returns 'fitness' as a string, for use in debug messages. */
2890 odp_key_fitness_to_string(enum odp_key_fitness fitness)
2893 case ODP_FIT_PERFECT:
2895 case ODP_FIT_TOO_MUCH:
2897 case ODP_FIT_TOO_LITTLE:
2898 return "too_little";
2906 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
2907 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
2908 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
2909 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
2910 * null, then the return value is not meaningful.) */
2912 odp_put_userspace_action(uint32_t pid,
2913 const void *userdata, size_t userdata_size,
2914 struct ofpbuf *odp_actions)
2916 size_t userdata_ofs;
2919 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
2920 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
2922 userdata_ofs = odp_actions->size + NLA_HDRLEN;
2923 nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
2924 userdata, userdata_size);
2928 nl_msg_end_nested(odp_actions, offset);
2930 return userdata_ofs;
2934 odp_put_tunnel_action(const struct flow_tnl *tunnel,
2935 struct ofpbuf *odp_actions)
2937 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
2938 tun_key_to_attr(odp_actions, tunnel);
2939 nl_msg_end_nested(odp_actions, offset);
2942 /* The commit_odp_actions() function and its helpers. */
2945 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
2946 const void *key, size_t key_size)
2948 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
2949 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
2950 nl_msg_end_nested(odp_actions, offset);
2954 odp_put_skb_mark_action(const uint32_t skb_mark,
2955 struct ofpbuf *odp_actions)
2957 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &skb_mark,
2961 /* If any of the flow key data that ODP actions can modify are different in
2962 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
2963 * 'odp_actions' that change the flow tunneling information in key from
2964 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
2965 * same way. In other words, operates the same as commit_odp_actions(), but
2966 * only on tunneling information. */
2968 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
2969 struct ofpbuf *odp_actions)
2971 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
2972 if (flow->tunnel.ip_dst) {
2973 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
2976 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
2977 odp_put_tunnel_action(&base->tunnel, odp_actions);
2982 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
2983 struct ofpbuf *odp_actions,
2984 struct flow_wildcards *wc)
2986 struct ovs_key_ethernet eth_key;
2988 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
2989 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
2993 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
2994 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
2996 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
2997 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
2999 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3000 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3002 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3003 ð_key, sizeof(eth_key));
3007 commit_vlan_action(const struct flow *flow, struct flow *base,
3008 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3010 if (base->vlan_tci == flow->vlan_tci) {
3014 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3016 if (base->vlan_tci & htons(VLAN_CFI)) {
3017 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3020 if (flow->vlan_tci & htons(VLAN_CFI)) {
3021 struct ovs_action_push_vlan vlan;
3023 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3024 vlan.vlan_tci = flow->vlan_tci;
3025 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3026 &vlan, sizeof vlan);
3028 base->vlan_tci = flow->vlan_tci;
3032 commit_mpls_action(const struct flow *flow, struct flow *base,
3033 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3035 if (flow->mpls_lse == base->mpls_lse &&
3036 flow->mpls_depth == base->mpls_depth) {
3040 memset(&wc->masks.mpls_lse, 0xff, sizeof wc->masks.mpls_lse);
3042 if (flow->mpls_depth < base->mpls_depth) {
3043 if (base->mpls_depth - flow->mpls_depth > 1) {
3044 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3045 VLOG_WARN_RL(&rl, "Multiple mpls_pop actions reduced to "
3046 " a single mpls_pop action");
3049 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, flow->dl_type);
3050 } else if (flow->mpls_depth > base->mpls_depth) {
3051 struct ovs_action_push_mpls *mpls;
3053 if (flow->mpls_depth - base->mpls_depth > 1) {
3054 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3055 VLOG_WARN_RL(&rl, "Multiple mpls_push actions reduced to "
3056 " a single mpls_push action");
3059 mpls = nl_msg_put_unspec_uninit(odp_actions, OVS_ACTION_ATTR_PUSH_MPLS,
3061 memset(mpls, 0, sizeof *mpls);
3062 mpls->mpls_ethertype = flow->dl_type;
3063 mpls->mpls_lse = flow->mpls_lse;
3065 struct ovs_key_mpls mpls_key;
3067 mpls_key.mpls_lse = flow->mpls_lse;
3068 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3069 &mpls_key, sizeof(mpls_key));
3072 base->dl_type = flow->dl_type;
3073 base->mpls_lse = flow->mpls_lse;
3074 base->mpls_depth = flow->mpls_depth;
3078 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3079 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3081 struct ovs_key_ipv4 ipv4_key;
3083 if (base->nw_src == flow->nw_src &&
3084 base->nw_dst == flow->nw_dst &&
3085 base->nw_tos == flow->nw_tos &&
3086 base->nw_ttl == flow->nw_ttl &&
3087 base->nw_frag == flow->nw_frag) {
3091 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3092 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3093 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3094 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3095 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3096 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3098 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3099 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3100 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3101 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3102 ipv4_key.ipv4_proto = base->nw_proto;
3103 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3105 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3106 &ipv4_key, sizeof(ipv4_key));
3110 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3111 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3113 struct ovs_key_ipv6 ipv6_key;
3115 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3116 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3117 base->ipv6_label == flow->ipv6_label &&
3118 base->nw_tos == flow->nw_tos &&
3119 base->nw_ttl == flow->nw_ttl &&
3120 base->nw_frag == flow->nw_frag) {
3124 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3125 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3126 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3127 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3128 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3129 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3130 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3132 base->ipv6_src = flow->ipv6_src;
3133 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3134 base->ipv6_dst = flow->ipv6_dst;
3135 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3137 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3138 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3139 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3140 ipv6_key.ipv6_proto = base->nw_proto;
3141 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3143 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3144 &ipv6_key, sizeof(ipv6_key));
3148 commit_set_nw_action(const struct flow *flow, struct flow *base,
3149 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3151 /* Check if flow really have an IP header. */
3152 if (!flow->nw_proto) {
3156 if (base->dl_type == htons(ETH_TYPE_IP)) {
3157 commit_set_ipv4_action(flow, base, odp_actions, wc);
3158 } else if (base->dl_type == htons(ETH_TYPE_IPV6)) {
3159 commit_set_ipv6_action(flow, base, odp_actions, wc);
3164 commit_set_port_action(const struct flow *flow, struct flow *base,
3165 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3167 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3171 if (base->tp_src == flow->tp_src &&
3172 base->tp_dst == flow->tp_dst) {
3176 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3177 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3179 if (flow->nw_proto == IPPROTO_TCP) {
3180 struct ovs_key_tcp port_key;
3182 port_key.tcp_src = base->tp_src = flow->tp_src;
3183 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3185 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3186 &port_key, sizeof(port_key));
3188 } else if (flow->nw_proto == IPPROTO_UDP) {
3189 struct ovs_key_udp port_key;
3191 port_key.udp_src = base->tp_src = flow->tp_src;
3192 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3194 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3195 &port_key, sizeof(port_key));
3200 commit_set_priority_action(const struct flow *flow, struct flow *base,
3201 struct ofpbuf *odp_actions,
3202 struct flow_wildcards *wc)
3204 if (base->skb_priority == flow->skb_priority) {
3208 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3209 base->skb_priority = flow->skb_priority;
3211 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3212 &base->skb_priority, sizeof(base->skb_priority));
3216 commit_set_skb_mark_action(const struct flow *flow, struct flow *base,
3217 struct ofpbuf *odp_actions,
3218 struct flow_wildcards *wc)
3220 if (base->skb_mark == flow->skb_mark) {
3224 memset(&wc->masks.skb_mark, 0xff, sizeof wc->masks.skb_mark);
3225 base->skb_mark = flow->skb_mark;
3227 odp_put_skb_mark_action(base->skb_mark, odp_actions);
3229 /* If any of the flow key data that ODP actions can modify are different in
3230 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3231 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3232 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3233 * in addition to this function if needed. Sets fields in 'wc' that are
3234 * used as part of the action. */
3236 commit_odp_actions(const struct flow *flow, struct flow *base,
3237 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3239 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3240 commit_vlan_action(flow, base, odp_actions, wc);
3241 commit_set_nw_action(flow, base, odp_actions, wc);
3242 commit_set_port_action(flow, base, odp_actions, wc);
3243 /* Committing MPLS actions should occur after committing nw and port
3244 * actions. This is because committing MPLS actions may alter a packet so
3245 * that it is no longer IP and thus nw and port actions are no longer valid.
3247 commit_mpls_action(flow, base, odp_actions, wc);
3248 commit_set_priority_action(flow, base, odp_actions, wc);
3249 commit_set_skb_mark_action(flow, base, odp_actions, wc);