2 * Copyright (c) 2009, 2010, 2011, 2012 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_attr(const char *, const struct simap *port_names,
53 static void format_odp_key_attr(const struct nlattr *a, struct ds *ds);
55 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
58 * - For an action whose argument has a fixed length, returned that
59 * nonnegative length in bytes.
61 * - For an action with a variable-length argument, returns -2.
63 * - For an invalid 'type', returns -1. */
65 odp_action_len(uint16_t type)
67 if (type > OVS_ACTION_ATTR_MAX) {
71 switch ((enum ovs_action_attr) type) {
72 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
73 case OVS_ACTION_ATTR_USERSPACE: return -2;
74 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
75 case OVS_ACTION_ATTR_POP_VLAN: return 0;
76 case OVS_ACTION_ATTR_SET: return -2;
77 case OVS_ACTION_ATTR_SAMPLE: return -2;
79 case OVS_ACTION_ATTR_UNSPEC:
80 case __OVS_ACTION_ATTR_MAX:
88 ovs_key_attr_to_string(enum ovs_key_attr attr)
90 static char unknown_attr[3 + INT_STRLEN(unsigned int) + 1];
93 case OVS_KEY_ATTR_UNSPEC: return "unspec";
94 case OVS_KEY_ATTR_ENCAP: return "encap";
95 case OVS_KEY_ATTR_PRIORITY: return "priority";
96 case OVS_KEY_ATTR_TUN_ID: return "tun_id";
97 case OVS_KEY_ATTR_IPV4_TUNNEL: return "ipv4_tunnel";
98 case OVS_KEY_ATTR_IN_PORT: return "in_port";
99 case OVS_KEY_ATTR_ETHERNET: return "eth";
100 case OVS_KEY_ATTR_VLAN: return "vlan";
101 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
102 case OVS_KEY_ATTR_IPV4: return "ipv4";
103 case OVS_KEY_ATTR_IPV6: return "ipv6";
104 case OVS_KEY_ATTR_TCP: return "tcp";
105 case OVS_KEY_ATTR_UDP: return "udp";
106 case OVS_KEY_ATTR_ICMP: return "icmp";
107 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
108 case OVS_KEY_ATTR_ARP: return "arp";
109 case OVS_KEY_ATTR_ND: return "nd";
111 case __OVS_KEY_ATTR_MAX:
113 snprintf(unknown_attr, sizeof unknown_attr, "key%u",
114 (unsigned int) attr);
120 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
122 size_t len = nl_attr_get_size(a);
124 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
126 const uint8_t *unspec;
129 unspec = nl_attr_get(a);
130 for (i = 0; i < len; i++) {
131 ds_put_char(ds, i ? ' ': '(');
132 ds_put_format(ds, "%02x", unspec[i]);
134 ds_put_char(ds, ')');
139 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
141 static const struct nl_policy ovs_sample_policy[] = {
142 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
143 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
145 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
147 const struct nlattr *nla_acts;
150 ds_put_cstr(ds, "sample");
152 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
153 ds_put_cstr(ds, "(error)");
157 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
160 ds_put_format(ds, "(sample=%.1f%%,", percentage);
162 ds_put_cstr(ds, "actions(");
163 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
164 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
165 format_odp_actions(ds, nla_acts, len);
166 ds_put_format(ds, "))");
170 slow_path_reason_to_string(enum slow_path_reason bit)
181 case SLOW_CONTROLLER:
191 format_slow_path_reason(struct ds *ds, uint32_t slow)
196 uint32_t bit = rightmost_1bit(slow);
199 s = slow_path_reason_to_string(bit);
201 ds_put_format(ds, "%s,", s);
210 ds_put_format(ds, "0x%"PRIx32",", bad);
216 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
218 static const struct nl_policy ovs_userspace_policy[] = {
219 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
220 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_U64, .optional = true },
222 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
224 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
225 ds_put_cstr(ds, "userspace(error)");
229 ds_put_format(ds, "userspace(pid=%"PRIu32,
230 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
232 if (a[OVS_USERSPACE_ATTR_USERDATA]) {
233 uint64_t userdata = nl_attr_get_u64(a[OVS_USERSPACE_ATTR_USERDATA]);
234 union user_action_cookie cookie;
236 memcpy(&cookie, &userdata, sizeof cookie);
238 switch (cookie.type) {
239 case USER_ACTION_COOKIE_SFLOW:
240 ds_put_format(ds, ",sFlow("
241 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
242 vlan_tci_to_vid(cookie.sflow.vlan_tci),
243 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
244 cookie.sflow.output);
247 case USER_ACTION_COOKIE_SLOW_PATH:
248 ds_put_cstr(ds, ",slow_path(");
249 if (cookie.slow_path.reason) {
250 format_slow_path_reason(ds, cookie.slow_path.reason);
252 ds_put_char(ds, ')');
255 case USER_ACTION_COOKIE_UNSPEC:
257 ds_put_format(ds, ",userdata=0x%"PRIx64, userdata);
262 ds_put_char(ds, ')');
266 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
268 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
269 vlan_tci_to_vid(vlan_tci),
270 vlan_tci_to_pcp(vlan_tci));
271 if (!(vlan_tci & htons(VLAN_CFI))) {
272 ds_put_cstr(ds, ",cfi=0");
277 format_odp_action(struct ds *ds, const struct nlattr *a)
280 enum ovs_action_attr type = nl_attr_type(a);
281 const struct ovs_action_push_vlan *vlan;
283 expected_len = odp_action_len(nl_attr_type(a));
284 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
285 ds_put_format(ds, "bad length %zu, expected %d for: ",
286 nl_attr_get_size(a), expected_len);
287 format_generic_odp_action(ds, a);
292 case OVS_ACTION_ATTR_OUTPUT:
293 ds_put_format(ds, "%"PRIu16, nl_attr_get_u32(a));
295 case OVS_ACTION_ATTR_USERSPACE:
296 format_odp_userspace_action(ds, a);
298 case OVS_ACTION_ATTR_SET:
299 ds_put_cstr(ds, "set(");
300 format_odp_key_attr(nl_attr_get(a), ds);
301 ds_put_cstr(ds, ")");
303 case OVS_ACTION_ATTR_PUSH_VLAN:
304 vlan = nl_attr_get(a);
305 ds_put_cstr(ds, "push_vlan(");
306 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
307 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
309 format_vlan_tci(ds, vlan->vlan_tci);
310 ds_put_char(ds, ')');
312 case OVS_ACTION_ATTR_POP_VLAN:
313 ds_put_cstr(ds, "pop_vlan");
315 case OVS_ACTION_ATTR_SAMPLE:
316 format_odp_sample_action(ds, a);
318 case OVS_ACTION_ATTR_UNSPEC:
319 case __OVS_ACTION_ATTR_MAX:
321 format_generic_odp_action(ds, a);
327 format_odp_actions(struct ds *ds, const struct nlattr *actions,
331 const struct nlattr *a;
334 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
336 ds_put_char(ds, ',');
338 format_odp_action(ds, a);
343 if (left == actions_len) {
344 ds_put_cstr(ds, "<empty>");
346 ds_put_format(ds, ",***%u leftover bytes*** (", left);
347 for (i = 0; i < left; i++) {
348 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
350 ds_put_char(ds, ')');
353 ds_put_cstr(ds, "drop");
358 parse_odp_action(const char *s, const struct simap *port_names,
359 struct ofpbuf *actions)
361 /* Many of the sscanf calls in this function use oversized destination
362 * fields because some sscanf() implementations truncate the range of %i
363 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
364 * value of 0x7fff. The other alternatives are to allow only a single
365 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
368 * The tun_id parser has to use an alternative approach because there is no
369 * type larger than 64 bits. */
372 unsigned long long int port;
375 if (sscanf(s, "%lli%n", &port, &n) > 0 && n > 0) {
376 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
382 int len = strcspn(s, delimiters);
383 struct simap_node *node;
385 node = simap_find_len(port_names, s, len);
387 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
393 unsigned long long int pid;
394 unsigned long long int output;
399 if (sscanf(s, "userspace(pid=%lli)%n", &pid, &n) > 0 && n > 0) {
400 odp_put_userspace_action(pid, NULL, actions);
402 } else if (sscanf(s, "userspace(pid=%lli,sFlow(vid=%i,"
403 "pcp=%i,output=%lli))%n",
404 &pid, &vid, &pcp, &output, &n) > 0 && n > 0) {
405 union user_action_cookie cookie;
408 tci = vid | (pcp << VLAN_PCP_SHIFT);
413 cookie.type = USER_ACTION_COOKIE_SFLOW;
414 cookie.sflow.vlan_tci = htons(tci);
415 cookie.sflow.output = output;
416 odp_put_userspace_action(pid, &cookie, actions);
418 } else if (sscanf(s, "userspace(pid=%lli,slow_path(%n", &pid, &n) > 0
420 union user_action_cookie cookie;
422 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
423 cookie.slow_path.unused = 0;
424 cookie.slow_path.reason = 0;
426 while (s[n] != ')') {
429 for (bit = 1; bit; bit <<= 1) {
430 const char *reason = slow_path_reason_to_string(bit);
431 size_t len = strlen(reason);
434 && !strncmp(s + n, reason, len)
435 && (s[n + len] == ',' || s[n + len] == ')'))
437 cookie.slow_path.reason |= bit;
438 n += len + (s[n + len] == ',');
447 if (s[n + 1] != ')') {
452 odp_put_userspace_action(pid, &cookie, actions);
454 } else if (sscanf(s, "userspace(pid=%lli,userdata="
455 "%31[x0123456789abcdefABCDEF])%n", &pid, userdata_s,
457 union user_action_cookie cookie;
460 userdata = strtoull(userdata_s, NULL, 0);
461 memcpy(&cookie, &userdata, sizeof cookie);
462 odp_put_userspace_action(pid, &cookie, actions);
467 if (!strncmp(s, "set(", 4)) {
471 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
472 retval = parse_odp_key_attr(s + 4, port_names, actions);
476 if (s[retval + 4] != ')') {
479 nl_msg_end_nested(actions, start_ofs);
484 struct ovs_action_push_vlan push;
485 int tpid = ETH_TYPE_VLAN;
490 if ((sscanf(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n) > 0
492 || (sscanf(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
493 &vid, &pcp, &cfi, &n) > 0 && n > 0)
494 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
495 &tpid, &vid, &pcp, &n) > 0 && n > 0)
496 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
497 &tpid, &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
498 push.vlan_tpid = htons(tpid);
499 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
500 | (pcp << VLAN_PCP_SHIFT)
501 | (cfi ? VLAN_CFI : 0));
502 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
509 if (!strncmp(s, "pop_vlan", 8)) {
510 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
518 if (sscanf(s, "sample(sample=%lf%%,actions(%n", &percentage, &n) > 0
519 && percentage >= 0. && percentage <= 100.0
521 size_t sample_ofs, actions_ofs;
524 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
525 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
526 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
527 (probability <= 0 ? 0
528 : probability >= UINT32_MAX ? UINT32_MAX
531 actions_ofs = nl_msg_start_nested(actions,
532 OVS_SAMPLE_ATTR_ACTIONS);
536 n += strspn(s + n, delimiters);
541 retval = parse_odp_action(s + n, port_names, actions);
547 nl_msg_end_nested(actions, actions_ofs);
548 nl_msg_end_nested(actions, sample_ofs);
550 return s[n + 1] == ')' ? n + 2 : -EINVAL;
557 /* Parses the string representation of datapath actions, in the format output
558 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
559 * value. On success, the ODP actions are appended to 'actions' as a series of
560 * Netlink attributes. On failure, no data is appended to 'actions'. Either
561 * way, 'actions''s data might be reallocated. */
563 odp_actions_from_string(const char *s, const struct simap *port_names,
564 struct ofpbuf *actions)
568 if (!strcasecmp(s, "drop")) {
572 old_size = actions->size;
576 s += strspn(s, delimiters);
581 retval = parse_odp_action(s, port_names, actions);
582 if (retval < 0 || !strchr(delimiters, s[retval])) {
583 actions->size = old_size;
592 /* Returns the correct length of the payload for a flow key attribute of the
593 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
594 * is variable length. */
596 odp_flow_key_attr_len(uint16_t type)
598 if (type > OVS_KEY_ATTR_MAX) {
602 switch ((enum ovs_key_attr) type) {
603 case OVS_KEY_ATTR_ENCAP: return -2;
604 case OVS_KEY_ATTR_PRIORITY: return 4;
605 case OVS_KEY_ATTR_TUN_ID: return 8;
606 case OVS_KEY_ATTR_IPV4_TUNNEL: return sizeof(struct ovs_key_ipv4_tunnel);
607 case OVS_KEY_ATTR_IN_PORT: return 4;
608 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
609 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
610 case OVS_KEY_ATTR_ETHERTYPE: return 2;
611 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
612 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
613 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
614 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
615 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
616 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
617 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
618 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
620 case OVS_KEY_ATTR_UNSPEC:
621 case __OVS_KEY_ATTR_MAX:
629 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
631 size_t len = nl_attr_get_size(a);
633 const uint8_t *unspec;
636 unspec = nl_attr_get(a);
637 for (i = 0; i < len; i++) {
638 ds_put_char(ds, i ? ' ': '(');
639 ds_put_format(ds, "%02x", unspec[i]);
641 ds_put_char(ds, ')');
646 ovs_frag_type_to_string(enum ovs_frag_type type)
649 case OVS_FRAG_TYPE_NONE:
651 case OVS_FRAG_TYPE_FIRST:
653 case OVS_FRAG_TYPE_LATER:
655 case __OVS_FRAG_TYPE_MAX:
662 format_odp_key_attr(const struct nlattr *a, struct ds *ds)
664 const struct ovs_key_ethernet *eth_key;
665 const struct ovs_key_ipv4 *ipv4_key;
666 const struct ovs_key_ipv6 *ipv6_key;
667 const struct ovs_key_tcp *tcp_key;
668 const struct ovs_key_udp *udp_key;
669 const struct ovs_key_icmp *icmp_key;
670 const struct ovs_key_icmpv6 *icmpv6_key;
671 const struct ovs_key_arp *arp_key;
672 const struct ovs_key_nd *nd_key;
673 const struct ovs_key_ipv4_tunnel *ipv4_tun_key;
674 enum ovs_key_attr attr = nl_attr_type(a);
677 ds_put_cstr(ds, ovs_key_attr_to_string(attr));
678 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
679 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
680 ds_put_format(ds, "(bad length %zu, expected %d)",
682 odp_flow_key_attr_len(nl_attr_type(a)));
683 format_generic_odp_key(a, ds);
688 case OVS_KEY_ATTR_ENCAP:
689 ds_put_cstr(ds, "(");
690 if (nl_attr_get_size(a)) {
691 odp_flow_key_format(nl_attr_get(a), nl_attr_get_size(a), ds);
693 ds_put_char(ds, ')');
696 case OVS_KEY_ATTR_PRIORITY:
697 ds_put_format(ds, "(%"PRIu32")", nl_attr_get_u32(a));
700 case OVS_KEY_ATTR_TUN_ID:
701 ds_put_format(ds, "(%#"PRIx64")", ntohll(nl_attr_get_be64(a)));
704 case OVS_KEY_ATTR_IPV4_TUNNEL:
705 ipv4_tun_key = nl_attr_get(a);
706 ds_put_format(ds, "(tun_id=0x%"PRIx64",flags=0x%"PRIx32
707 ",src="IP_FMT",dst="IP_FMT",tos=0x%"PRIx8",ttl=%"PRIu8")",
708 ntohll(ipv4_tun_key->tun_id), ipv4_tun_key->tun_flags,
709 IP_ARGS(&ipv4_tun_key->ipv4_src),
710 IP_ARGS(&ipv4_tun_key->ipv4_dst),
711 ipv4_tun_key->ipv4_tos, ipv4_tun_key->ipv4_ttl);
714 case OVS_KEY_ATTR_IN_PORT:
715 ds_put_format(ds, "(%"PRIu32")", nl_attr_get_u32(a));
718 case OVS_KEY_ATTR_ETHERNET:
719 eth_key = nl_attr_get(a);
720 ds_put_format(ds, "(src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT")",
721 ETH_ADDR_ARGS(eth_key->eth_src),
722 ETH_ADDR_ARGS(eth_key->eth_dst));
725 case OVS_KEY_ATTR_VLAN:
726 ds_put_char(ds, '(');
727 format_vlan_tci(ds, nl_attr_get_be16(a));
728 ds_put_char(ds, ')');
731 case OVS_KEY_ATTR_ETHERTYPE:
732 ds_put_format(ds, "(0x%04"PRIx16")",
733 ntohs(nl_attr_get_be16(a)));
736 case OVS_KEY_ATTR_IPV4:
737 ipv4_key = nl_attr_get(a);
738 ds_put_format(ds, "(src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
739 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s)",
740 IP_ARGS(&ipv4_key->ipv4_src),
741 IP_ARGS(&ipv4_key->ipv4_dst),
742 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
744 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
747 case OVS_KEY_ATTR_IPV6: {
748 char src_str[INET6_ADDRSTRLEN];
749 char dst_str[INET6_ADDRSTRLEN];
751 ipv6_key = nl_attr_get(a);
752 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
753 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
755 ds_put_format(ds, "(src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
756 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s)",
757 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
758 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
759 ipv6_key->ipv6_hlimit,
760 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
764 case OVS_KEY_ATTR_TCP:
765 tcp_key = nl_attr_get(a);
766 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
767 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
770 case OVS_KEY_ATTR_UDP:
771 udp_key = nl_attr_get(a);
772 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
773 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
776 case OVS_KEY_ATTR_ICMP:
777 icmp_key = nl_attr_get(a);
778 ds_put_format(ds, "(type=%"PRIu8",code=%"PRIu8")",
779 icmp_key->icmp_type, icmp_key->icmp_code);
782 case OVS_KEY_ATTR_ICMPV6:
783 icmpv6_key = nl_attr_get(a);
784 ds_put_format(ds, "(type=%"PRIu8",code=%"PRIu8")",
785 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
788 case OVS_KEY_ATTR_ARP:
789 arp_key = nl_attr_get(a);
790 ds_put_format(ds, "(sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
791 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT")",
792 IP_ARGS(&arp_key->arp_sip), IP_ARGS(&arp_key->arp_tip),
793 ntohs(arp_key->arp_op), ETH_ADDR_ARGS(arp_key->arp_sha),
794 ETH_ADDR_ARGS(arp_key->arp_tha));
797 case OVS_KEY_ATTR_ND: {
798 char target[INET6_ADDRSTRLEN];
800 nd_key = nl_attr_get(a);
801 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
803 ds_put_format(ds, "(target=%s", target);
804 if (!eth_addr_is_zero(nd_key->nd_sll)) {
805 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
806 ETH_ADDR_ARGS(nd_key->nd_sll));
808 if (!eth_addr_is_zero(nd_key->nd_tll)) {
809 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
810 ETH_ADDR_ARGS(nd_key->nd_tll));
812 ds_put_char(ds, ')');
816 case OVS_KEY_ATTR_UNSPEC:
817 case __OVS_KEY_ATTR_MAX:
819 format_generic_odp_key(a, ds);
824 /* Appends to 'ds' a string representation of the 'key_len' bytes of
825 * OVS_KEY_ATTR_* attributes in 'key'. */
827 odp_flow_key_format(const struct nlattr *key, size_t key_len, struct ds *ds)
830 const struct nlattr *a;
833 NL_ATTR_FOR_EACH (a, left, key, key_len) {
835 ds_put_char(ds, ',');
837 format_odp_key_attr(a, ds);
842 if (left == key_len) {
843 ds_put_cstr(ds, "<empty>");
845 ds_put_format(ds, ",***%u leftover bytes*** (", left);
846 for (i = 0; i < left; i++) {
847 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
849 ds_put_char(ds, ')');
852 ds_put_cstr(ds, "<empty>");
857 put_nd_key(int n, const char *nd_target_s,
858 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
860 struct ovs_key_nd nd_key;
862 memset(&nd_key, 0, sizeof nd_key);
863 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
867 memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
870 memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
872 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
877 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
879 if (!strcasecmp(s, "no")) {
880 *type = OVS_FRAG_TYPE_NONE;
881 } else if (!strcasecmp(s, "first")) {
882 *type = OVS_FRAG_TYPE_FIRST;
883 } else if (!strcasecmp(s, "later")) {
884 *type = OVS_FRAG_TYPE_LATER;
892 parse_odp_key_attr(const char *s, const struct simap *port_names,
895 /* Many of the sscanf calls in this function use oversized destination
896 * fields because some sscanf() implementations truncate the range of %i
897 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
898 * value of 0x7fff. The other alternatives are to allow only a single
899 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
902 * The tun_id parser has to use an alternative approach because there is no
903 * type larger than 64 bits. */
906 unsigned long long int priority;
909 if (sscanf(s, "priority(%lli)%n", &priority, &n) > 0 && n > 0) {
910 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
919 if (sscanf(s, "tun_id(%31[x0123456789abcdefABCDEF])%n",
920 tun_id_s, &n) > 0 && n > 0) {
921 uint64_t tun_id = strtoull(tun_id_s, NULL, 0);
922 nl_msg_put_be64(key, OVS_KEY_ATTR_TUN_ID, htonll(tun_id));
929 unsigned long long int flags;
931 struct ovs_key_ipv4_tunnel tun_key;
934 if (sscanf(s, "ipv4_tunnel(tun_id=%31[x0123456789abcdefABCDEF],"
935 "flags=%lli,src="IP_SCAN_FMT",dst="IP_SCAN_FMT
936 ",tos=%i,ttl=%i)%n", tun_id_s, &flags,
937 IP_SCAN_ARGS(&tun_key.ipv4_src),
938 IP_SCAN_ARGS(&tun_key.ipv4_dst), &tos, &ttl,
940 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
941 tun_key.tun_flags = flags;
942 tun_key.ipv4_tos = tos;
943 tun_key.ipv4_ttl = ttl;
944 memset(&tun_key.pad, 0, sizeof tun_key.pad);
945 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4_TUNNEL, &tun_key,
952 unsigned long long int in_port;
955 if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
956 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
961 if (port_names && !strncmp(s, "in_port(", 8)) {
963 const struct simap_node *node;
967 name_len = strcspn(s, ")");
968 node = simap_find_len(port_names, name, name_len);
970 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
971 return 8 + name_len + 1;
976 struct ovs_key_ethernet eth_key;
980 "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
981 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
982 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
983 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
984 ð_key, sizeof eth_key);
995 if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n", &vid, &pcp, &n) > 0
997 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
998 htons((vid << VLAN_VID_SHIFT) |
999 (pcp << VLAN_PCP_SHIFT) |
1002 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i,cfi=%i)%n",
1003 &vid, &pcp, &cfi, &n) > 0
1005 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1006 htons((vid << VLAN_VID_SHIFT) |
1007 (pcp << VLAN_PCP_SHIFT) |
1008 (cfi ? VLAN_CFI : 0)));
1017 if (sscanf(s, "eth_type(%i)%n", ð_type, &n) > 0 && n > 0) {
1018 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1030 enum ovs_frag_type ipv4_frag;
1033 if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1034 "proto=%i,tos=%i,ttl=%i,frag=%7[a-z])%n",
1035 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_dst),
1036 &ipv4_proto, &ipv4_tos, &ipv4_ttl, frag, &n) > 0
1038 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1039 struct ovs_key_ipv4 ipv4_key;
1041 ipv4_key.ipv4_src = ipv4_src;
1042 ipv4_key.ipv4_dst = ipv4_dst;
1043 ipv4_key.ipv4_proto = ipv4_proto;
1044 ipv4_key.ipv4_tos = ipv4_tos;
1045 ipv4_key.ipv4_ttl = ipv4_ttl;
1046 ipv4_key.ipv4_frag = ipv4_frag;
1047 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1048 &ipv4_key, sizeof ipv4_key);
1054 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1055 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1061 enum ovs_frag_type ipv6_frag;
1064 if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
1065 "label=%i,proto=%i,tclass=%i,hlimit=%i,frag=%7[a-z])%n",
1066 ipv6_src_s, ipv6_dst_s, &ipv6_label,
1067 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) > 0
1069 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1070 struct ovs_key_ipv6 ipv6_key;
1072 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1073 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1076 ipv6_key.ipv6_label = htonl(ipv6_label);
1077 ipv6_key.ipv6_proto = ipv6_proto;
1078 ipv6_key.ipv6_tclass = ipv6_tclass;
1079 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1080 ipv6_key.ipv6_frag = ipv6_frag;
1081 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1082 &ipv6_key, sizeof ipv6_key);
1092 if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
1094 struct ovs_key_tcp tcp_key;
1096 tcp_key.tcp_src = htons(tcp_src);
1097 tcp_key.tcp_dst = htons(tcp_dst);
1098 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
1108 if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
1110 struct ovs_key_udp udp_key;
1112 udp_key.udp_src = htons(udp_src);
1113 udp_key.udp_dst = htons(udp_dst);
1114 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
1124 if (sscanf(s, "icmp(type=%i,code=%i)%n",
1125 &icmp_type, &icmp_code, &n) > 0
1127 struct ovs_key_icmp icmp_key;
1129 icmp_key.icmp_type = icmp_type;
1130 icmp_key.icmp_code = icmp_code;
1131 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
1132 &icmp_key, sizeof icmp_key);
1138 struct ovs_key_icmpv6 icmpv6_key;
1141 if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
1142 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
1144 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
1145 &icmpv6_key, sizeof icmpv6_key);
1154 uint8_t arp_sha[ETH_ADDR_LEN];
1155 uint8_t arp_tha[ETH_ADDR_LEN];
1158 if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
1159 "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
1160 IP_SCAN_ARGS(&arp_sip),
1161 IP_SCAN_ARGS(&arp_tip),
1163 ETH_ADDR_SCAN_ARGS(arp_sha),
1164 ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
1165 struct ovs_key_arp arp_key;
1167 memset(&arp_key, 0, sizeof arp_key);
1168 arp_key.arp_sip = arp_sip;
1169 arp_key.arp_tip = arp_tip;
1170 arp_key.arp_op = htons(arp_op);
1171 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
1172 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
1173 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
1179 char nd_target_s[IPV6_SCAN_LEN + 1];
1180 uint8_t nd_sll[ETH_ADDR_LEN];
1181 uint8_t nd_tll[ETH_ADDR_LEN];
1184 if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
1185 nd_target_s, &n) > 0 && n > 0) {
1186 return put_nd_key(n, nd_target_s, NULL, NULL, key);
1188 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
1189 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
1191 return put_nd_key(n, nd_target_s, nd_sll, NULL, key);
1193 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
1194 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
1196 return put_nd_key(n, nd_target_s, NULL, nd_tll, key);
1198 if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
1199 "tll="ETH_ADDR_SCAN_FMT")%n",
1200 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
1201 ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
1203 return put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
1207 if (!strncmp(s, "encap(", 6)) {
1208 const char *start = s;
1211 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
1217 s += strspn(s, ", \t\r\n");
1220 } else if (*s == ')') {
1224 retval = parse_odp_key_attr(s, port_names, key);
1232 nl_msg_end_nested(key, encap);
1240 /* Parses the string representation of a datapath flow key, in the
1241 * format output by odp_flow_key_format(). Returns 0 if successful,
1242 * otherwise a positive errno value. On success, the flow key is
1243 * appended to 'key' as a series of Netlink attributes. On failure, no
1244 * data is appended to 'key'. Either way, 'key''s data might be
1247 * If 'port_names' is nonnull, it points to an simap that maps from a port name
1248 * to a port number. (Port names may be used instead of port numbers in
1251 * On success, the attributes appended to 'key' are individually syntactically
1252 * valid, but they may not be valid as a sequence. 'key' might, for example,
1253 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
1255 odp_flow_key_from_string(const char *s, const struct simap *port_names,
1258 const size_t old_size = key->size;
1262 s += strspn(s, delimiters);
1267 retval = parse_odp_key_attr(s, port_names, key);
1269 key->size = old_size;
1279 ovs_to_odp_frag(uint8_t nw_frag)
1281 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
1282 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
1283 : OVS_FRAG_TYPE_LATER);
1286 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
1287 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
1288 * number rather than a datapath port number). Instead, if 'odp_in_port'
1289 * is anything other than OVSP_NONE, it is included in 'buf' as the input
1292 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
1293 * capable of being expanded to allow for that much space. */
1295 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
1296 uint32_t odp_in_port)
1298 struct ovs_key_ethernet *eth_key;
1301 if (flow->skb_priority) {
1302 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, flow->skb_priority);
1305 if (flow->tunnel.tun_id != htonll(0)) {
1306 nl_msg_put_be64(buf, OVS_KEY_ATTR_TUN_ID, flow->tunnel.tun_id);
1309 if (odp_in_port != OVSP_NONE) {
1310 nl_msg_put_u32(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
1313 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
1315 memcpy(eth_key->eth_src, flow->dl_src, ETH_ADDR_LEN);
1316 memcpy(eth_key->eth_dst, flow->dl_dst, ETH_ADDR_LEN);
1318 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
1319 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
1320 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, flow->vlan_tci);
1321 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
1322 if (flow->vlan_tci == htons(0)) {
1329 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
1333 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, flow->dl_type);
1335 if (flow->dl_type == htons(ETH_TYPE_IP)) {
1336 struct ovs_key_ipv4 *ipv4_key;
1338 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
1340 ipv4_key->ipv4_src = flow->nw_src;
1341 ipv4_key->ipv4_dst = flow->nw_dst;
1342 ipv4_key->ipv4_proto = flow->nw_proto;
1343 ipv4_key->ipv4_tos = flow->nw_tos;
1344 ipv4_key->ipv4_ttl = flow->nw_ttl;
1345 ipv4_key->ipv4_frag = ovs_to_odp_frag(flow->nw_frag);
1346 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
1347 struct ovs_key_ipv6 *ipv6_key;
1349 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
1351 memcpy(ipv6_key->ipv6_src, &flow->ipv6_src, sizeof ipv6_key->ipv6_src);
1352 memcpy(ipv6_key->ipv6_dst, &flow->ipv6_dst, sizeof ipv6_key->ipv6_dst);
1353 ipv6_key->ipv6_label = flow->ipv6_label;
1354 ipv6_key->ipv6_proto = flow->nw_proto;
1355 ipv6_key->ipv6_tclass = flow->nw_tos;
1356 ipv6_key->ipv6_hlimit = flow->nw_ttl;
1357 ipv6_key->ipv6_frag = ovs_to_odp_frag(flow->nw_frag);
1358 } else if (flow->dl_type == htons(ETH_TYPE_ARP)) {
1359 struct ovs_key_arp *arp_key;
1361 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
1363 memset(arp_key, 0, sizeof *arp_key);
1364 arp_key->arp_sip = flow->nw_src;
1365 arp_key->arp_tip = flow->nw_dst;
1366 arp_key->arp_op = htons(flow->nw_proto);
1367 memcpy(arp_key->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
1368 memcpy(arp_key->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
1371 if ((flow->dl_type == htons(ETH_TYPE_IP)
1372 || flow->dl_type == htons(ETH_TYPE_IPV6))
1373 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1375 if (flow->nw_proto == IPPROTO_TCP) {
1376 struct ovs_key_tcp *tcp_key;
1378 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
1380 tcp_key->tcp_src = flow->tp_src;
1381 tcp_key->tcp_dst = flow->tp_dst;
1382 } else if (flow->nw_proto == IPPROTO_UDP) {
1383 struct ovs_key_udp *udp_key;
1385 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
1387 udp_key->udp_src = flow->tp_src;
1388 udp_key->udp_dst = flow->tp_dst;
1389 } else if (flow->dl_type == htons(ETH_TYPE_IP)
1390 && flow->nw_proto == IPPROTO_ICMP) {
1391 struct ovs_key_icmp *icmp_key;
1393 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
1395 icmp_key->icmp_type = ntohs(flow->tp_src);
1396 icmp_key->icmp_code = ntohs(flow->tp_dst);
1397 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
1398 && flow->nw_proto == IPPROTO_ICMPV6) {
1399 struct ovs_key_icmpv6 *icmpv6_key;
1401 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
1402 sizeof *icmpv6_key);
1403 icmpv6_key->icmpv6_type = ntohs(flow->tp_src);
1404 icmpv6_key->icmpv6_code = ntohs(flow->tp_dst);
1406 if (icmpv6_key->icmpv6_type == ND_NEIGHBOR_SOLICIT
1407 || icmpv6_key->icmpv6_type == ND_NEIGHBOR_ADVERT) {
1408 struct ovs_key_nd *nd_key;
1410 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
1412 memcpy(nd_key->nd_target, &flow->nd_target,
1413 sizeof nd_key->nd_target);
1414 memcpy(nd_key->nd_sll, flow->arp_sha, ETH_ADDR_LEN);
1415 memcpy(nd_key->nd_tll, flow->arp_tha, ETH_ADDR_LEN);
1422 nl_msg_end_nested(buf, encap);
1427 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
1429 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
1430 return hash_words((const uint32_t *) key, key_len / sizeof(uint32_t), 0);
1434 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
1435 uint64_t attrs, int out_of_range_attr,
1436 const struct nlattr *key, size_t key_len)
1441 if (VLOG_DROP_DBG(rl)) {
1446 for (i = 0; i < 64; i++) {
1447 if (attrs & (UINT64_C(1) << i)) {
1448 ds_put_format(&s, " %s", ovs_key_attr_to_string(i));
1451 if (out_of_range_attr) {
1452 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
1455 ds_put_cstr(&s, ": ");
1456 odp_flow_key_format(key, key_len, &s);
1458 VLOG_DBG("%s:%s", title, ds_cstr(&s));
1463 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
1465 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1467 if (odp_frag > OVS_FRAG_TYPE_LATER) {
1468 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
1472 if (odp_frag != OVS_FRAG_TYPE_NONE) {
1473 flow->nw_frag |= FLOW_NW_FRAG_ANY;
1474 if (odp_frag == OVS_FRAG_TYPE_LATER) {
1475 flow->nw_frag |= FLOW_NW_FRAG_LATER;
1482 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
1483 const struct nlattr *attrs[], uint64_t *present_attrsp,
1484 int *out_of_range_attrp)
1486 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
1487 const struct nlattr *nla;
1488 uint64_t present_attrs;
1492 *out_of_range_attrp = 0;
1493 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
1494 uint16_t type = nl_attr_type(nla);
1495 size_t len = nl_attr_get_size(nla);
1496 int expected_len = odp_flow_key_attr_len(type);
1498 if (len != expected_len && expected_len >= 0) {
1499 VLOG_ERR_RL(&rl, "attribute %s has length %zu but should have "
1500 "length %d", ovs_key_attr_to_string(type),
1505 if (type >= CHAR_BIT * sizeof present_attrs) {
1506 *out_of_range_attrp = type;
1508 if (present_attrs & (UINT64_C(1) << type)) {
1509 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
1510 ovs_key_attr_to_string(type));
1514 present_attrs |= UINT64_C(1) << type;
1519 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
1523 *present_attrsp = present_attrs;
1527 static enum odp_key_fitness
1528 check_expectations(uint64_t present_attrs, int out_of_range_attr,
1529 uint64_t expected_attrs,
1530 const struct nlattr *key, size_t key_len)
1532 uint64_t missing_attrs;
1533 uint64_t extra_attrs;
1535 missing_attrs = expected_attrs & ~present_attrs;
1536 if (missing_attrs) {
1537 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
1538 log_odp_key_attributes(&rl, "expected but not present",
1539 missing_attrs, 0, key, key_len);
1540 return ODP_FIT_TOO_LITTLE;
1543 extra_attrs = present_attrs & ~expected_attrs;
1544 if (extra_attrs || out_of_range_attr) {
1545 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
1546 log_odp_key_attributes(&rl, "present but not expected",
1547 extra_attrs, out_of_range_attr, key, key_len);
1548 return ODP_FIT_TOO_MUCH;
1551 return ODP_FIT_PERFECT;
1555 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
1556 uint64_t present_attrs, uint64_t *expected_attrs,
1559 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1561 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
1562 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
1563 if (ntohs(flow->dl_type) < 1536) {
1564 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
1565 ntohs(flow->dl_type));
1568 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
1570 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
1575 static enum odp_key_fitness
1576 parse_l3_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
1577 uint64_t present_attrs, int out_of_range_attr,
1578 uint64_t expected_attrs, struct flow *flow,
1579 const struct nlattr *key, size_t key_len)
1581 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1583 if (flow->dl_type == htons(ETH_TYPE_IP)) {
1584 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
1585 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
1586 const struct ovs_key_ipv4 *ipv4_key;
1588 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
1589 flow->nw_src = ipv4_key->ipv4_src;
1590 flow->nw_dst = ipv4_key->ipv4_dst;
1591 flow->nw_proto = ipv4_key->ipv4_proto;
1592 flow->nw_tos = ipv4_key->ipv4_tos;
1593 flow->nw_ttl = ipv4_key->ipv4_ttl;
1594 if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
1595 return ODP_FIT_ERROR;
1598 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
1599 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
1600 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
1601 const struct ovs_key_ipv6 *ipv6_key;
1603 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
1604 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
1605 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
1606 flow->ipv6_label = ipv6_key->ipv6_label;
1607 flow->nw_proto = ipv6_key->ipv6_proto;
1608 flow->nw_tos = ipv6_key->ipv6_tclass;
1609 flow->nw_ttl = ipv6_key->ipv6_hlimit;
1610 if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
1611 return ODP_FIT_ERROR;
1614 } else if (flow->dl_type == htons(ETH_TYPE_ARP)) {
1615 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
1616 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
1617 const struct ovs_key_arp *arp_key;
1619 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
1620 flow->nw_src = arp_key->arp_sip;
1621 flow->nw_dst = arp_key->arp_tip;
1622 if (arp_key->arp_op & htons(0xff00)) {
1623 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
1624 "key", ntohs(arp_key->arp_op));
1625 return ODP_FIT_ERROR;
1627 flow->nw_proto = ntohs(arp_key->arp_op);
1628 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
1629 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
1633 if (flow->nw_proto == IPPROTO_TCP
1634 && (flow->dl_type == htons(ETH_TYPE_IP) ||
1635 flow->dl_type == htons(ETH_TYPE_IPV6))
1636 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1637 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
1638 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
1639 const struct ovs_key_tcp *tcp_key;
1641 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
1642 flow->tp_src = tcp_key->tcp_src;
1643 flow->tp_dst = tcp_key->tcp_dst;
1645 } else if (flow->nw_proto == IPPROTO_UDP
1646 && (flow->dl_type == htons(ETH_TYPE_IP) ||
1647 flow->dl_type == htons(ETH_TYPE_IPV6))
1648 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1649 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
1650 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
1651 const struct ovs_key_udp *udp_key;
1653 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
1654 flow->tp_src = udp_key->udp_src;
1655 flow->tp_dst = udp_key->udp_dst;
1657 } else if (flow->nw_proto == IPPROTO_ICMP
1658 && flow->dl_type == htons(ETH_TYPE_IP)
1659 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1660 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
1661 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
1662 const struct ovs_key_icmp *icmp_key;
1664 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
1665 flow->tp_src = htons(icmp_key->icmp_type);
1666 flow->tp_dst = htons(icmp_key->icmp_code);
1668 } else if (flow->nw_proto == IPPROTO_ICMPV6
1669 && flow->dl_type == htons(ETH_TYPE_IPV6)
1670 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
1671 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
1672 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
1673 const struct ovs_key_icmpv6 *icmpv6_key;
1675 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
1676 flow->tp_src = htons(icmpv6_key->icmpv6_type);
1677 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
1679 if (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
1680 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) {
1681 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
1682 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
1683 const struct ovs_key_nd *nd_key;
1685 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
1686 memcpy(&flow->nd_target, nd_key->nd_target,
1687 sizeof flow->nd_target);
1688 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
1689 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
1695 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
1699 /* Parse 802.1Q header then encapsulated L3 attributes. */
1700 static enum odp_key_fitness
1701 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
1702 uint64_t present_attrs, int out_of_range_attr,
1703 uint64_t expected_attrs, struct flow *flow,
1704 const struct nlattr *key, size_t key_len)
1706 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1708 const struct nlattr *encap
1709 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
1710 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
1711 enum odp_key_fitness encap_fitness;
1712 enum odp_key_fitness fitness;
1715 /* Calulate fitness of outer attributes. */
1716 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
1717 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
1718 fitness = check_expectations(present_attrs, out_of_range_attr,
1719 expected_attrs, key, key_len);
1721 /* Get the VLAN TCI value. */
1722 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
1723 return ODP_FIT_TOO_LITTLE;
1725 tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
1726 if (tci == htons(0)) {
1727 /* Corner case for a truncated 802.1Q header. */
1728 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
1729 return ODP_FIT_TOO_MUCH;
1732 } else if (!(tci & htons(VLAN_CFI))) {
1733 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
1734 "but CFI bit is not set", ntohs(tci));
1735 return ODP_FIT_ERROR;
1739 * Remove the TPID from dl_type since it's not the real Ethertype. */
1740 flow->vlan_tci = tci;
1741 flow->dl_type = htons(0);
1743 /* Now parse the encapsulated attributes. */
1744 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
1745 attrs, &present_attrs, &out_of_range_attr)) {
1746 return ODP_FIT_ERROR;
1750 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
1751 return ODP_FIT_ERROR;
1753 encap_fitness = parse_l3_onward(attrs, present_attrs, out_of_range_attr,
1754 expected_attrs, flow, key, key_len);
1756 /* The overall fitness is the worse of the outer and inner attributes. */
1757 return MAX(fitness, encap_fitness);
1760 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
1761 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
1762 * 'key' fits our expectations for what a flow key should contain.
1764 * The 'in_port' will be the datapath's understanding of the port. The
1765 * caller will need to translate with odp_port_to_ofp_port() if the
1766 * OpenFlow port is needed.
1768 * This function doesn't take the packet itself as an argument because none of
1769 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
1770 * it is always possible to infer which additional attribute(s) should appear
1771 * by looking at the attributes for lower-level protocols, e.g. if the network
1772 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
1773 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
1774 * must be absent. */
1775 enum odp_key_fitness
1776 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
1779 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
1780 uint64_t expected_attrs;
1781 uint64_t present_attrs;
1782 int out_of_range_attr;
1784 memset(flow, 0, sizeof *flow);
1786 /* Parse attributes. */
1787 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
1788 &out_of_range_attr)) {
1789 return ODP_FIT_ERROR;
1794 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
1795 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
1796 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
1799 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUN_ID)) {
1800 flow->tunnel.tun_id = nl_attr_get_be64(attrs[OVS_KEY_ATTR_TUN_ID]);
1801 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUN_ID;
1804 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
1805 flow->in_port = nl_attr_get_u32(attrs[OVS_KEY_ATTR_IN_PORT]);
1806 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
1808 flow->in_port = OVSP_NONE;
1811 /* Ethernet header. */
1812 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
1813 const struct ovs_key_ethernet *eth_key;
1815 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
1816 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
1817 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
1819 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
1821 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
1822 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow)) {
1823 return ODP_FIT_ERROR;
1826 if (flow->dl_type == htons(ETH_TYPE_VLAN)) {
1827 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
1828 expected_attrs, flow, key, key_len);
1830 return parse_l3_onward(attrs, present_attrs, out_of_range_attr,
1831 expected_attrs, flow, key, key_len);
1834 /* Returns 'fitness' as a string, for use in debug messages. */
1836 odp_key_fitness_to_string(enum odp_key_fitness fitness)
1839 case ODP_FIT_PERFECT:
1841 case ODP_FIT_TOO_MUCH:
1843 case ODP_FIT_TOO_LITTLE:
1844 return "too_little";
1852 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
1853 * Netlink PID 'pid'. If 'cookie' is nonnull, adds a userdata attribute whose
1854 * contents contains 'cookie' and returns the offset within 'odp_actions' of
1855 * the start of the cookie. (If 'cookie' is null, then the return value is not
1858 odp_put_userspace_action(uint32_t pid, const union user_action_cookie *cookie,
1859 struct ofpbuf *odp_actions)
1863 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
1864 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
1866 nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
1867 cookie, sizeof *cookie);
1869 nl_msg_end_nested(odp_actions, offset);
1871 return cookie ? odp_actions->size - NLA_ALIGN(sizeof *cookie) : 0;
1874 /* The commit_odp_actions() function and its helpers. */
1877 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
1878 const void *key, size_t key_size)
1880 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
1881 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
1882 nl_msg_end_nested(odp_actions, offset);
1886 commit_set_tun_id_action(const struct flow *flow, struct flow *base,
1887 struct ofpbuf *odp_actions)
1889 if (base->tunnel.tun_id == flow->tunnel.tun_id) {
1892 base->tunnel.tun_id = flow->tunnel.tun_id;
1894 commit_set_action(odp_actions, OVS_KEY_ATTR_TUN_ID,
1895 &base->tunnel.tun_id, sizeof(base->tunnel.tun_id));
1899 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
1900 struct ofpbuf *odp_actions)
1902 struct ovs_key_ethernet eth_key;
1904 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
1905 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
1909 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
1910 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
1912 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
1913 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
1915 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
1916 ð_key, sizeof(eth_key));
1920 commit_vlan_action(const struct flow *flow, struct flow *base,
1921 struct ofpbuf *odp_actions)
1923 if (base->vlan_tci == flow->vlan_tci) {
1927 if (base->vlan_tci & htons(VLAN_CFI)) {
1928 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
1931 if (flow->vlan_tci & htons(VLAN_CFI)) {
1932 struct ovs_action_push_vlan vlan;
1934 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
1935 vlan.vlan_tci = flow->vlan_tci;
1936 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
1937 &vlan, sizeof vlan);
1939 base->vlan_tci = flow->vlan_tci;
1943 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
1944 struct ofpbuf *odp_actions)
1946 struct ovs_key_ipv4 ipv4_key;
1948 if (base->nw_src == flow->nw_src &&
1949 base->nw_dst == flow->nw_dst &&
1950 base->nw_tos == flow->nw_tos &&
1951 base->nw_ttl == flow->nw_ttl &&
1952 base->nw_frag == flow->nw_frag) {
1956 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
1957 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
1958 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
1959 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
1960 ipv4_key.ipv4_proto = base->nw_proto;
1961 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
1963 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
1964 &ipv4_key, sizeof(ipv4_key));
1968 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
1969 struct ofpbuf *odp_actions)
1971 struct ovs_key_ipv6 ipv6_key;
1973 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
1974 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
1975 base->ipv6_label == flow->ipv6_label &&
1976 base->nw_tos == flow->nw_tos &&
1977 base->nw_ttl == flow->nw_ttl &&
1978 base->nw_frag == flow->nw_frag) {
1982 base->ipv6_src = flow->ipv6_src;
1983 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
1984 base->ipv6_dst = flow->ipv6_dst;
1985 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
1987 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
1988 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
1989 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
1990 ipv6_key.ipv6_proto = base->nw_proto;
1991 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
1993 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
1994 &ipv6_key, sizeof(ipv6_key));
1998 commit_set_nw_action(const struct flow *flow, struct flow *base,
1999 struct ofpbuf *odp_actions)
2001 /* Check if flow really have an IP header. */
2002 if (!flow->nw_proto) {
2006 if (base->dl_type == htons(ETH_TYPE_IP)) {
2007 commit_set_ipv4_action(flow, base, odp_actions);
2008 } else if (base->dl_type == htons(ETH_TYPE_IPV6)) {
2009 commit_set_ipv6_action(flow, base, odp_actions);
2014 commit_set_port_action(const struct flow *flow, struct flow *base,
2015 struct ofpbuf *odp_actions)
2017 if (!base->tp_src && !base->tp_dst) {
2021 if (base->tp_src == flow->tp_src &&
2022 base->tp_dst == flow->tp_dst) {
2026 if (flow->nw_proto == IPPROTO_TCP) {
2027 struct ovs_key_tcp port_key;
2029 port_key.tcp_src = base->tp_src = flow->tp_src;
2030 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
2032 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
2033 &port_key, sizeof(port_key));
2035 } else if (flow->nw_proto == IPPROTO_UDP) {
2036 struct ovs_key_udp port_key;
2038 port_key.udp_src = base->tp_src = flow->tp_src;
2039 port_key.udp_dst = base->tp_dst = flow->tp_dst;
2041 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
2042 &port_key, sizeof(port_key));
2047 commit_set_priority_action(const struct flow *flow, struct flow *base,
2048 struct ofpbuf *odp_actions)
2050 if (base->skb_priority == flow->skb_priority) {
2053 base->skb_priority = flow->skb_priority;
2055 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
2056 &base->skb_priority, sizeof(base->skb_priority));
2059 /* If any of the flow key data that ODP actions can modify are different in
2060 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
2061 * key from 'base' into 'flow', and then changes 'base' the same way. */
2063 commit_odp_actions(const struct flow *flow, struct flow *base,
2064 struct ofpbuf *odp_actions)
2066 commit_set_tun_id_action(flow, base, odp_actions);
2067 commit_set_ether_addr_action(flow, base, odp_actions);
2068 commit_vlan_action(flow, base, odp_actions);
2069 commit_set_nw_action(flow, base, odp_actions);
2070 commit_set_port_action(flow, base, odp_actions);
2071 commit_set_priority_action(flow, base, odp_actions);