2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include <arpa/inet.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
27 #include "byte-order.h"
30 #include "dynamic-string.h"
40 VLOG_DEFINE_THIS_MODULE(odp_util);
42 /* The interface between userspace and kernel uses an "OVS_*" prefix.
43 * Since this is fairly non-specific for the OVS userspace components,
44 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
45 * interactions with the datapath.
48 /* The set of characters that may separate one action or one key attribute
50 static const char *delimiters = ", \t\r\n";
52 static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
53 struct ofpbuf *, struct ofpbuf *);
54 static void format_odp_key_attr(const struct nlattr *a,
55 const struct nlattr *ma,
56 const struct hmap *portno_names, struct ds *ds,
59 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
62 * - For an action whose argument has a fixed length, returned that
63 * nonnegative length in bytes.
65 * - For an action with a variable-length argument, returns -2.
67 * - For an invalid 'type', returns -1. */
69 odp_action_len(uint16_t type)
71 if (type > OVS_ACTION_ATTR_MAX) {
75 switch ((enum ovs_action_attr) type) {
76 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
77 case OVS_ACTION_ATTR_USERSPACE: return -2;
78 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
79 case OVS_ACTION_ATTR_POP_VLAN: return 0;
80 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
81 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
82 case OVS_ACTION_ATTR_SET: return -2;
83 case OVS_ACTION_ATTR_SAMPLE: return -2;
85 case OVS_ACTION_ATTR_UNSPEC:
86 case __OVS_ACTION_ATTR_MAX:
93 /* Returns a string form of 'attr'. The return value is either a statically
94 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
95 * should be at least OVS_KEY_ATTR_BUFSIZE. */
96 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
98 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
101 case OVS_KEY_ATTR_UNSPEC: return "unspec";
102 case OVS_KEY_ATTR_ENCAP: return "encap";
103 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
104 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
105 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
106 case OVS_KEY_ATTR_IN_PORT: return "in_port";
107 case OVS_KEY_ATTR_ETHERNET: return "eth";
108 case OVS_KEY_ATTR_VLAN: return "vlan";
109 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
110 case OVS_KEY_ATTR_IPV4: return "ipv4";
111 case OVS_KEY_ATTR_IPV6: return "ipv6";
112 case OVS_KEY_ATTR_TCP: return "tcp";
113 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
114 case OVS_KEY_ATTR_UDP: return "udp";
115 case OVS_KEY_ATTR_SCTP: return "sctp";
116 case OVS_KEY_ATTR_ICMP: return "icmp";
117 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
118 case OVS_KEY_ATTR_ARP: return "arp";
119 case OVS_KEY_ATTR_ND: return "nd";
120 case OVS_KEY_ATTR_MPLS: return "mpls";
122 case __OVS_KEY_ATTR_MAX:
124 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
130 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
132 size_t len = nl_attr_get_size(a);
134 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
136 const uint8_t *unspec;
139 unspec = nl_attr_get(a);
140 for (i = 0; i < len; i++) {
141 ds_put_char(ds, i ? ' ': '(');
142 ds_put_format(ds, "%02x", unspec[i]);
144 ds_put_char(ds, ')');
149 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
151 static const struct nl_policy ovs_sample_policy[] = {
152 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
153 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
155 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
157 const struct nlattr *nla_acts;
160 ds_put_cstr(ds, "sample");
162 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
163 ds_put_cstr(ds, "(error)");
167 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
170 ds_put_format(ds, "(sample=%.1f%%,", percentage);
172 ds_put_cstr(ds, "actions(");
173 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
174 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
175 format_odp_actions(ds, nla_acts, len);
176 ds_put_format(ds, "))");
180 slow_path_reason_to_string(uint32_t reason)
182 switch ((enum slow_path_reason) reason) {
183 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
192 slow_path_reason_to_explanation(enum slow_path_reason reason)
195 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
204 parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
215 while (s[n] != ')') {
216 unsigned long long int flags;
220 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
221 n += n0 + (s[n + n0] == ',');
226 for (bit = 1; bit; bit <<= 1) {
227 const char *name = bit_to_string(bit);
235 if (!strncmp(s + n, name, len) &&
236 (s[n + len] == ',' || s[n + len] == ')')) {
238 n += len + (s[n + len] == ',');
254 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
256 static const struct nl_policy ovs_userspace_policy[] = {
257 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
258 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
261 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
262 const struct nlattr *userdata_attr;
264 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
265 ds_put_cstr(ds, "userspace(error)");
269 ds_put_format(ds, "userspace(pid=%"PRIu32,
270 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
272 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
275 const uint8_t *userdata = nl_attr_get(userdata_attr);
276 size_t userdata_len = nl_attr_get_size(userdata_attr);
277 bool userdata_unspec = true;
278 union user_action_cookie cookie;
280 if (userdata_len >= sizeof cookie.type
281 && userdata_len <= sizeof cookie) {
283 memset(&cookie, 0, sizeof cookie);
284 memcpy(&cookie, userdata, userdata_len);
286 userdata_unspec = false;
288 if (userdata_len == sizeof cookie.sflow
289 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
290 ds_put_format(ds, ",sFlow("
291 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
292 vlan_tci_to_vid(cookie.sflow.vlan_tci),
293 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
294 cookie.sflow.output);
295 } else if (userdata_len == sizeof cookie.slow_path
296 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
297 ds_put_cstr(ds, ",slow_path(");
298 format_flags(ds, slow_path_reason_to_string,
299 cookie.slow_path.reason, ',');
300 ds_put_format(ds, ")");
301 } else if (userdata_len == sizeof cookie.flow_sample
302 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
303 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
304 ",collector_set_id=%"PRIu32
305 ",obs_domain_id=%"PRIu32
306 ",obs_point_id=%"PRIu32")",
307 cookie.flow_sample.probability,
308 cookie.flow_sample.collector_set_id,
309 cookie.flow_sample.obs_domain_id,
310 cookie.flow_sample.obs_point_id);
311 } else if (userdata_len >= sizeof cookie.ipfix
312 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
313 ds_put_format(ds, ",ipfix");
315 userdata_unspec = true;
319 if (userdata_unspec) {
321 ds_put_format(ds, ",userdata(");
322 for (i = 0; i < userdata_len; i++) {
323 ds_put_format(ds, "%02x", userdata[i]);
325 ds_put_char(ds, ')');
329 ds_put_char(ds, ')');
333 format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
335 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
336 vlan_tci_to_vid(vlan_tci),
337 vlan_tci_to_pcp(vlan_tci));
338 if (!(vlan_tci & htons(VLAN_CFI))) {
339 ds_put_cstr(ds, ",cfi=0");
344 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
346 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
347 mpls_lse_to_label(mpls_lse),
348 mpls_lse_to_tc(mpls_lse),
349 mpls_lse_to_ttl(mpls_lse),
350 mpls_lse_to_bos(mpls_lse));
354 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
355 const struct ovs_key_mpls *mpls_mask, int n)
358 ovs_be32 key = mpls_key->mpls_lse;
360 if (mpls_mask == NULL) {
361 format_mpls_lse(ds, key);
363 ovs_be32 mask = mpls_mask->mpls_lse;
365 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
366 mpls_lse_to_label(key), mpls_lse_to_label(mask),
367 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
368 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
369 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
374 for (i = 0; i < n; i++) {
375 ds_put_format(ds, "lse%d=%#"PRIx32,
376 i, ntohl(mpls_key[i].mpls_lse));
378 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
380 ds_put_char(ds, ',');
387 format_odp_action(struct ds *ds, const struct nlattr *a)
390 enum ovs_action_attr type = nl_attr_type(a);
391 const struct ovs_action_push_vlan *vlan;
393 expected_len = odp_action_len(nl_attr_type(a));
394 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
395 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
396 nl_attr_get_size(a), expected_len);
397 format_generic_odp_action(ds, a);
402 case OVS_ACTION_ATTR_OUTPUT:
403 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
405 case OVS_ACTION_ATTR_USERSPACE:
406 format_odp_userspace_action(ds, a);
408 case OVS_ACTION_ATTR_SET:
409 ds_put_cstr(ds, "set(");
410 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
411 ds_put_cstr(ds, ")");
413 case OVS_ACTION_ATTR_PUSH_VLAN:
414 vlan = nl_attr_get(a);
415 ds_put_cstr(ds, "push_vlan(");
416 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
417 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
419 format_vlan_tci(ds, vlan->vlan_tci);
420 ds_put_char(ds, ')');
422 case OVS_ACTION_ATTR_POP_VLAN:
423 ds_put_cstr(ds, "pop_vlan");
425 case OVS_ACTION_ATTR_PUSH_MPLS: {
426 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
427 ds_put_cstr(ds, "push_mpls(");
428 format_mpls_lse(ds, mpls->mpls_lse);
429 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
432 case OVS_ACTION_ATTR_POP_MPLS: {
433 ovs_be16 ethertype = nl_attr_get_be16(a);
434 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
437 case OVS_ACTION_ATTR_SAMPLE:
438 format_odp_sample_action(ds, a);
440 case OVS_ACTION_ATTR_UNSPEC:
441 case __OVS_ACTION_ATTR_MAX:
443 format_generic_odp_action(ds, a);
449 format_odp_actions(struct ds *ds, const struct nlattr *actions,
453 const struct nlattr *a;
456 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
458 ds_put_char(ds, ',');
460 format_odp_action(ds, a);
465 if (left == actions_len) {
466 ds_put_cstr(ds, "<empty>");
468 ds_put_format(ds, ",***%u leftover bytes*** (", left);
469 for (i = 0; i < left; i++) {
470 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
472 ds_put_char(ds, ')');
475 ds_put_cstr(ds, "drop");
480 parse_odp_action(const char *s, const struct simap *port_names,
481 struct ofpbuf *actions)
487 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
488 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
494 int len = strcspn(s, delimiters);
495 struct simap_node *node;
497 node = simap_find_len(port_names, s, len);
499 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
507 uint32_t probability;
508 uint32_t collector_set_id;
509 uint32_t obs_domain_id;
510 uint32_t obs_point_id;
514 if (ovs_scan(s, "userspace(pid=%"SCNi32")%n", &pid, &n)) {
515 odp_put_userspace_action(pid, NULL, 0, actions);
517 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",sFlow(vid=%i,"
518 "pcp=%i,output=%"SCNi32"))%n",
519 &pid, &vid, &pcp, &output, &n)) {
520 union user_action_cookie cookie;
523 tci = vid | (pcp << VLAN_PCP_SHIFT);
528 cookie.type = USER_ACTION_COOKIE_SFLOW;
529 cookie.sflow.vlan_tci = htons(tci);
530 cookie.sflow.output = output;
531 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
534 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",slow_path%n",
536 union user_action_cookie cookie;
539 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
540 cookie.slow_path.unused = 0;
541 cookie.slow_path.reason = 0;
543 res = parse_flags(&s[n], slow_path_reason_to_string,
544 &cookie.slow_path.reason);
554 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
557 } else if (ovs_scan(s, "userspace(pid=%"SCNi32","
558 "flow_sample(probability=%"SCNi32","
559 "collector_set_id=%"SCNi32","
560 "obs_domain_id=%"SCNi32","
561 "obs_point_id=%"SCNi32"))%n",
562 &pid, &probability, &collector_set_id,
563 &obs_domain_id, &obs_point_id, &n)) {
564 union user_action_cookie cookie;
566 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
567 cookie.flow_sample.probability = probability;
568 cookie.flow_sample.collector_set_id = collector_set_id;
569 cookie.flow_sample.obs_domain_id = obs_domain_id;
570 cookie.flow_sample.obs_point_id = obs_point_id;
571 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
574 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",ipfix)%n", &pid, &n)) {
575 union user_action_cookie cookie;
577 cookie.type = USER_ACTION_COOKIE_IPFIX;
578 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
581 } else if (ovs_scan(s, "userspace(pid=%"SCNi32",userdata(%n",
586 ofpbuf_init(&buf, 16);
587 end = ofpbuf_put_hex(&buf, &s[n], NULL);
588 if (end[0] == ')' && end[1] == ')') {
589 odp_put_userspace_action(pid, buf.data, buf.size, actions);
591 return (end + 2) - s;
596 if (!strncmp(s, "set(", 4)) {
600 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
601 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
605 if (s[retval + 4] != ')') {
608 nl_msg_end_nested(actions, start_ofs);
613 struct ovs_action_push_vlan push;
614 int tpid = ETH_TYPE_VLAN;
619 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
620 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
621 &vid, &pcp, &cfi, &n)
622 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
623 &tpid, &vid, &pcp, &n)
624 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
625 &tpid, &vid, &pcp, &cfi, &n)) {
626 push.vlan_tpid = htons(tpid);
627 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
628 | (pcp << VLAN_PCP_SHIFT)
629 | (cfi ? VLAN_CFI : 0));
630 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
637 if (!strncmp(s, "pop_vlan", 8)) {
638 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
646 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
647 && percentage >= 0. && percentage <= 100.0) {
648 size_t sample_ofs, actions_ofs;
651 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
652 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
653 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
654 (probability <= 0 ? 0
655 : probability >= UINT32_MAX ? UINT32_MAX
658 actions_ofs = nl_msg_start_nested(actions,
659 OVS_SAMPLE_ATTR_ACTIONS);
663 n += strspn(s + n, delimiters);
668 retval = parse_odp_action(s + n, port_names, actions);
674 nl_msg_end_nested(actions, actions_ofs);
675 nl_msg_end_nested(actions, sample_ofs);
677 return s[n + 1] == ')' ? n + 2 : -EINVAL;
684 /* Parses the string representation of datapath actions, in the format output
685 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
686 * value. On success, the ODP actions are appended to 'actions' as a series of
687 * Netlink attributes. On failure, no data is appended to 'actions'. Either
688 * way, 'actions''s data might be reallocated. */
690 odp_actions_from_string(const char *s, const struct simap *port_names,
691 struct ofpbuf *actions)
695 if (!strcasecmp(s, "drop")) {
699 old_size = actions->size;
703 s += strspn(s, delimiters);
708 retval = parse_odp_action(s, port_names, actions);
709 if (retval < 0 || !strchr(delimiters, s[retval])) {
710 actions->size = old_size;
719 /* Returns the correct length of the payload for a flow key attribute of the
720 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
721 * is variable length. */
723 odp_flow_key_attr_len(uint16_t type)
725 if (type > OVS_KEY_ATTR_MAX) {
729 switch ((enum ovs_key_attr) type) {
730 case OVS_KEY_ATTR_ENCAP: return -2;
731 case OVS_KEY_ATTR_PRIORITY: return 4;
732 case OVS_KEY_ATTR_SKB_MARK: return 4;
733 case OVS_KEY_ATTR_TUNNEL: return -2;
734 case OVS_KEY_ATTR_IN_PORT: return 4;
735 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
736 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
737 case OVS_KEY_ATTR_ETHERTYPE: return 2;
738 case OVS_KEY_ATTR_MPLS: return -2;
739 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
740 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
741 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
742 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
743 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
744 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
745 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
746 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
747 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
748 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
750 case OVS_KEY_ATTR_UNSPEC:
751 case __OVS_KEY_ATTR_MAX:
759 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
761 size_t len = nl_attr_get_size(a);
763 const uint8_t *unspec;
766 unspec = nl_attr_get(a);
767 for (i = 0; i < len; i++) {
769 ds_put_char(ds, ' ');
771 ds_put_format(ds, "%02x", unspec[i]);
777 ovs_frag_type_to_string(enum ovs_frag_type type)
780 case OVS_FRAG_TYPE_NONE:
782 case OVS_FRAG_TYPE_FIRST:
784 case OVS_FRAG_TYPE_LATER:
786 case __OVS_FRAG_TYPE_MAX:
793 tunnel_key_attr_len(int type)
796 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
797 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
798 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
799 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
800 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
801 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
802 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
803 case __OVS_TUNNEL_KEY_ATTR_MAX:
810 odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
813 const struct nlattr *a;
815 bool unknown = false;
817 NL_NESTED_FOR_EACH(a, left, attr) {
818 uint16_t type = nl_attr_type(a);
819 size_t len = nl_attr_get_size(a);
820 int expected_len = tunnel_key_attr_len(type);
822 if (len != expected_len && expected_len >= 0) {
823 return ODP_FIT_ERROR;
827 case OVS_TUNNEL_KEY_ATTR_ID:
828 tun->tun_id = nl_attr_get_be64(a);
829 tun->flags |= FLOW_TNL_F_KEY;
831 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
832 tun->ip_src = nl_attr_get_be32(a);
834 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
835 tun->ip_dst = nl_attr_get_be32(a);
837 case OVS_TUNNEL_KEY_ATTR_TOS:
838 tun->ip_tos = nl_attr_get_u8(a);
840 case OVS_TUNNEL_KEY_ATTR_TTL:
841 tun->ip_ttl = nl_attr_get_u8(a);
844 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
845 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
847 case OVS_TUNNEL_KEY_ATTR_CSUM:
848 tun->flags |= FLOW_TNL_F_CSUM;
851 /* Allow this to show up as unexpected, if there are unknown
852 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
859 return ODP_FIT_ERROR;
862 return ODP_FIT_TOO_MUCH;
864 return ODP_FIT_PERFECT;
868 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
872 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
874 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
875 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
876 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
878 if (tun_key->ip_src) {
879 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
881 if (tun_key->ip_dst) {
882 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
884 if (tun_key->ip_tos) {
885 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
887 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
888 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
889 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
891 if (tun_key->flags & FLOW_TNL_F_CSUM) {
892 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
895 nl_msg_end_nested(a, tun_key_ofs);
899 odp_mask_attr_is_wildcard(const struct nlattr *ma)
901 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
905 odp_mask_attr_is_exact(const struct nlattr *ma)
907 bool is_exact = false;
908 enum ovs_key_attr attr = nl_attr_type(ma);
910 if (attr == OVS_KEY_ATTR_TUNNEL) {
911 /* XXX this is a hack for now. Should change
912 * the exact match dection to per field
913 * instead of per attribute.
915 struct flow_tnl tun_mask;
916 memset(&tun_mask, 0, sizeof tun_mask);
917 odp_tun_key_from_attr(ma, &tun_mask);
918 if (tun_mask.flags == (FLOW_TNL_F_KEY
919 | FLOW_TNL_F_DONT_FRAGMENT
920 | FLOW_TNL_F_CSUM)) {
921 /* The flags are exact match, check the remaining fields. */
922 tun_mask.flags = 0xffff;
923 is_exact = is_all_ones((uint8_t *)&tun_mask,
924 offsetof(struct flow_tnl, ip_ttl));
927 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
934 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
937 struct odp_portno_names *odp_portno_names;
939 odp_portno_names = xmalloc(sizeof *odp_portno_names);
940 odp_portno_names->port_no = port_no;
941 odp_portno_names->name = xstrdup(port_name);
942 hmap_insert(portno_names, &odp_portno_names->hmap_node,
943 hash_odp_port(port_no));
947 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
949 struct odp_portno_names *odp_portno_names;
951 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
952 hash_odp_port(port_no), portno_names) {
953 if (odp_portno_names->port_no == port_no) {
954 return odp_portno_names->name;
961 odp_portno_names_destroy(struct hmap *portno_names)
963 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
964 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
965 hmap_node, portno_names) {
966 hmap_remove(portno_names, &odp_portno_names->hmap_node);
967 free(odp_portno_names->name);
968 free(odp_portno_names);
973 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
974 const struct hmap *portno_names, struct ds *ds,
977 struct flow_tnl tun_key;
978 enum ovs_key_attr attr = nl_attr_type(a);
979 char namebuf[OVS_KEY_ATTR_BUFSIZE];
983 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
985 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
988 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
989 if (expected_len != -2) {
990 bool bad_key_len = nl_attr_get_size(a) != expected_len;
991 bool bad_mask_len = ma && nl_attr_get_size(a) != expected_len;
993 if (bad_key_len || bad_mask_len) {
995 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
997 odp_flow_key_attr_len(nl_attr_type(a)));
999 format_generic_odp_key(a, ds);
1001 ds_put_char(ds, '/');
1002 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1003 nl_attr_get_size(ma),
1004 odp_flow_key_attr_len(nl_attr_type(ma)));
1006 format_generic_odp_key(ma, ds);
1007 ds_put_char(ds, ')');
1013 ds_put_char(ds, '(');
1015 case OVS_KEY_ATTR_ENCAP:
1016 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1017 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
1018 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
1020 } else if (nl_attr_get_size(a)) {
1021 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1026 case OVS_KEY_ATTR_PRIORITY:
1027 case OVS_KEY_ATTR_SKB_MARK:
1028 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
1030 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1034 case OVS_KEY_ATTR_TUNNEL:
1035 memset(&tun_key, 0, sizeof tun_key);
1036 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
1037 ds_put_format(ds, "error");
1038 } else if (!is_exact) {
1039 struct flow_tnl tun_mask;
1041 memset(&tun_mask, 0, sizeof tun_mask);
1042 odp_tun_key_from_attr(ma, &tun_mask);
1043 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1044 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1045 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1047 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1048 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1049 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1050 tun_key.ip_tos, tun_mask.ip_tos,
1051 tun_key.ip_ttl, tun_mask.ip_ttl);
1053 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1055 /* XXX This code is correct, but enabling it would break the unit
1056 test. Disable it for now until the input parser is fixed.
1058 ds_put_char(ds, '/');
1059 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1061 ds_put_char(ds, ')');
1063 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
1064 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1065 ntohll(tun_key.tun_id),
1066 IP_ARGS(tun_key.ip_src),
1067 IP_ARGS(tun_key.ip_dst),
1068 tun_key.ip_tos, tun_key.ip_ttl);
1070 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1071 ds_put_char(ds, ')');
1075 case OVS_KEY_ATTR_IN_PORT:
1076 if (portno_names && verbose && is_exact) {
1077 char *name = odp_portno_names_get(portno_names,
1078 u32_to_odp(nl_attr_get_u32(a)));
1080 ds_put_format(ds, "%s", name);
1082 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1085 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1087 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1092 case OVS_KEY_ATTR_ETHERNET:
1094 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1095 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1097 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1098 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1099 ETH_ADDR_ARGS(eth_key->eth_src),
1100 ETH_ADDR_ARGS(eth_mask->eth_src),
1101 ETH_ADDR_ARGS(eth_key->eth_dst),
1102 ETH_ADDR_ARGS(eth_mask->eth_dst));
1104 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1106 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1107 ETH_ADDR_ARGS(eth_key->eth_src),
1108 ETH_ADDR_ARGS(eth_key->eth_dst));
1112 case OVS_KEY_ATTR_VLAN:
1114 ovs_be16 vlan_tci = nl_attr_get_be16(a);
1116 ovs_be16 mask = nl_attr_get_be16(ma);
1117 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
1118 vlan_tci_to_vid(vlan_tci),
1119 vlan_tci_to_vid(mask),
1120 vlan_tci_to_pcp(vlan_tci),
1121 vlan_tci_to_pcp(mask),
1122 vlan_tci_to_cfi(vlan_tci),
1123 vlan_tci_to_cfi(mask));
1125 format_vlan_tci(ds, vlan_tci);
1130 case OVS_KEY_ATTR_MPLS: {
1131 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
1132 const struct ovs_key_mpls *mpls_mask = NULL;
1133 size_t size = nl_attr_get_size(a);
1135 if (!size || size % sizeof *mpls_key) {
1136 ds_put_format(ds, "(bad key length %"PRIuSIZE")",
1137 nl_attr_get_size(a));
1141 mpls_mask = nl_attr_get(ma);
1142 if (nl_attr_get_size(a) != nl_attr_get_size(ma)) {
1143 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1144 "mask length %"PRIuSIZE")",
1145 nl_attr_get_size(a), nl_attr_get_size(ma));
1149 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
1153 case OVS_KEY_ATTR_ETHERTYPE:
1154 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
1156 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1160 case OVS_KEY_ATTR_IPV4:
1162 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1163 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1165 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1166 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1167 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1168 IP_ARGS(ipv4_key->ipv4_src),
1169 IP_ARGS(ipv4_mask->ipv4_src),
1170 IP_ARGS(ipv4_key->ipv4_dst),
1171 IP_ARGS(ipv4_mask->ipv4_dst),
1172 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1173 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1174 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1175 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1176 ipv4_mask->ipv4_frag);
1178 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1180 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1181 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1182 IP_ARGS(ipv4_key->ipv4_src),
1183 IP_ARGS(ipv4_key->ipv4_dst),
1184 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1186 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1190 case OVS_KEY_ATTR_IPV6:
1192 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1193 char src_str[INET6_ADDRSTRLEN];
1194 char dst_str[INET6_ADDRSTRLEN];
1195 char src_mask[INET6_ADDRSTRLEN];
1196 char dst_mask[INET6_ADDRSTRLEN];
1198 ipv6_key = nl_attr_get(a);
1199 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1200 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1202 ipv6_mask = nl_attr_get(ma);
1203 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1204 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1206 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1207 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1208 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1209 src_str, src_mask, dst_str, dst_mask,
1210 ntohl(ipv6_key->ipv6_label),
1211 ntohl(ipv6_mask->ipv6_label),
1212 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1213 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1214 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1215 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1216 ipv6_mask->ipv6_frag);
1218 const struct ovs_key_ipv6 *ipv6_key;
1219 char src_str[INET6_ADDRSTRLEN];
1220 char dst_str[INET6_ADDRSTRLEN];
1222 ipv6_key = nl_attr_get(a);
1223 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1224 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1226 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1227 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1228 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1229 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1230 ipv6_key->ipv6_hlimit,
1231 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1235 case OVS_KEY_ATTR_TCP:
1237 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1238 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1240 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1241 ",dst=%"PRIu16"/%#"PRIx16,
1242 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1243 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1245 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1247 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1248 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1252 case OVS_KEY_ATTR_TCP_FLAGS:
1253 ds_put_format(ds, "0x%03"PRIx16, ntohs(nl_attr_get_be16(a)));
1255 ds_put_format(ds, "/0x%03"PRIx16, ntohs(nl_attr_get_be16(ma)));
1259 case OVS_KEY_ATTR_UDP:
1261 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1262 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1264 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1265 ",dst=%"PRIu16"/%#"PRIx16,
1266 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1267 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1269 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1271 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1272 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1276 case OVS_KEY_ATTR_SCTP:
1278 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1279 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1281 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1282 ",dst=%"PRIu16"/%#"PRIx16,
1283 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1284 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1286 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1288 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
1289 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1293 case OVS_KEY_ATTR_ICMP:
1295 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1296 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1298 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1299 icmp_key->icmp_type, icmp_mask->icmp_type,
1300 icmp_key->icmp_code, icmp_mask->icmp_code);
1302 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1304 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1305 icmp_key->icmp_type, icmp_key->icmp_code);
1309 case OVS_KEY_ATTR_ICMPV6:
1311 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1312 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1314 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1315 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1316 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1318 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1320 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1321 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1325 case OVS_KEY_ATTR_ARP:
1327 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1328 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1330 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1331 ",op=%"PRIu16"/%#"PRIx16
1332 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1333 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1334 IP_ARGS(arp_key->arp_sip),
1335 IP_ARGS(arp_mask->arp_sip),
1336 IP_ARGS(arp_key->arp_tip),
1337 IP_ARGS(arp_mask->arp_tip),
1338 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1339 ETH_ADDR_ARGS(arp_key->arp_sha),
1340 ETH_ADDR_ARGS(arp_mask->arp_sha),
1341 ETH_ADDR_ARGS(arp_key->arp_tha),
1342 ETH_ADDR_ARGS(arp_mask->arp_tha));
1344 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1346 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1347 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1348 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1349 ntohs(arp_key->arp_op),
1350 ETH_ADDR_ARGS(arp_key->arp_sha),
1351 ETH_ADDR_ARGS(arp_key->arp_tha));
1355 case OVS_KEY_ATTR_ND: {
1356 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
1357 char target[INET6_ADDRSTRLEN];
1359 nd_key = nl_attr_get(a);
1361 nd_mask = nl_attr_get(ma);
1364 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
1365 ds_put_format(ds, "target=%s", target);
1367 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1368 ds_put_format(ds, "/%s", target);
1371 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1372 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1373 ETH_ADDR_ARGS(nd_key->nd_sll));
1375 ds_put_format(ds, "/"ETH_ADDR_FMT,
1376 ETH_ADDR_ARGS(nd_mask->nd_sll));
1379 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1380 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1381 ETH_ADDR_ARGS(nd_key->nd_tll));
1383 ds_put_format(ds, "/"ETH_ADDR_FMT,
1384 ETH_ADDR_ARGS(nd_mask->nd_tll));
1390 case OVS_KEY_ATTR_UNSPEC:
1391 case __OVS_KEY_ATTR_MAX:
1393 format_generic_odp_key(a, ds);
1395 ds_put_char(ds, '/');
1396 format_generic_odp_key(ma, ds);
1400 ds_put_char(ds, ')');
1403 static struct nlattr *
1404 generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1406 const struct nlattr *a;
1408 int type = nl_attr_type(key);
1409 int size = nl_attr_get_size(key);
1411 if (odp_flow_key_attr_len(type) >=0) {
1412 nl_msg_put_unspec_zero(ofp, type, size);
1416 nested_mask = nl_msg_start_nested(ofp, type);
1417 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1418 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1420 nl_msg_end_nested(ofp, nested_mask);
1426 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1427 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1428 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
1429 * non-null and 'verbose' is true, translates odp port number to its name. */
1431 odp_flow_format(const struct nlattr *key, size_t key_len,
1432 const struct nlattr *mask, size_t mask_len,
1433 const struct hmap *portno_names, struct ds *ds, bool verbose)
1436 const struct nlattr *a;
1438 bool has_ethtype_key = false;
1439 const struct nlattr *ma = NULL;
1441 bool first_field = true;
1443 ofpbuf_init(&ofp, 100);
1444 NL_ATTR_FOR_EACH (a, left, key, key_len) {
1445 bool is_nested_attr;
1446 bool is_wildcard = false;
1447 int attr_type = nl_attr_type(a);
1449 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
1450 has_ethtype_key = true;
1453 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1455 if (mask && mask_len) {
1456 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
1457 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1460 if (verbose || !is_wildcard || is_nested_attr) {
1461 if (is_wildcard && !ma) {
1462 ma = generate_all_wildcard_mask(&ofp, a);
1465 ds_put_char(ds, ',');
1467 format_odp_key_attr(a, ma, portno_names, ds, verbose);
1468 first_field = false;
1472 ofpbuf_uninit(&ofp);
1477 if (left == key_len) {
1478 ds_put_cstr(ds, "<empty>");
1480 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1481 for (i = 0; i < left; i++) {
1482 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1484 ds_put_char(ds, ')');
1486 if (!has_ethtype_key) {
1487 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1489 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1490 ntohs(nl_attr_get_be16(ma)));
1494 ds_put_cstr(ds, "<empty>");
1498 /* Appends to 'ds' a string representation of the 'key_len' bytes of
1499 * OVS_KEY_ATTR_* attributes in 'key'. */
1501 odp_flow_key_format(const struct nlattr *key,
1502 size_t key_len, struct ds *ds)
1504 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
1508 put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1509 const uint8_t *nd_tll, struct ofpbuf *key)
1512 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1516 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1519 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1523 put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1524 const uint8_t *nd_tll, struct ofpbuf *key)
1526 struct ovs_key_nd nd_key;
1528 memset(&nd_key, 0, sizeof nd_key);
1530 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1534 put_nd(&nd_key, nd_sll, nd_tll, key);
1539 put_nd_mask(int n, const char *nd_target_s,
1540 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1542 struct ovs_key_nd nd_mask;
1544 memset(&nd_mask, 0xff, sizeof nd_mask);
1546 if (strlen(nd_target_s) != 0 &&
1547 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1551 put_nd(&nd_mask, nd_sll, nd_tll, mask);
1556 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1558 if (!strcasecmp(s, "no")) {
1559 *type = OVS_FRAG_TYPE_NONE;
1560 } else if (!strcasecmp(s, "first")) {
1561 *type = OVS_FRAG_TYPE_FIRST;
1562 } else if (!strcasecmp(s, "later")) {
1563 *type = OVS_FRAG_TYPE_LATER;
1571 mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1573 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1574 (mpls_tc << MPLS_TC_SHIFT) |
1575 (mpls_ttl << MPLS_TTL_SHIFT) |
1576 (mpls_bos << MPLS_BOS_SHIFT)));
1580 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1581 struct ofpbuf *key, struct ofpbuf *mask)
1585 uint32_t priority_mask;
1588 if (mask && ovs_scan(s, "skb_priority(%"SCNi32"/%"SCNi32")%n",
1589 &priority, &priority_mask, &n)) {
1590 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1591 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1593 } else if (ovs_scan(s, "skb_priority(%"SCNi32")%n", &priority, &n)) {
1594 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1596 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1607 if (mask && ovs_scan(s, "skb_mark(%"SCNi32"/%"SCNi32")%n", &mark,
1609 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1610 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1612 } else if (ovs_scan(s, "skb_mark(%"SCNi32")%n", &mark, &n)) {
1613 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1615 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1622 uint64_t tun_id, tun_id_mask;
1623 struct flow_tnl tun_key, tun_key_mask;
1626 if (mask && ovs_scan(s, "tunnel(tun_id=%"SCNi64"/%"SCNi64","
1627 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1628 "/"IP_SCAN_FMT",tos=%"SCNi8"/%"SCNi8","
1629 "ttl=%"SCNi8"/%"SCNi8",flags%n",
1630 &tun_id, &tun_id_mask,
1631 IP_SCAN_ARGS(&tun_key.ip_src),
1632 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1633 IP_SCAN_ARGS(&tun_key.ip_dst),
1634 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1635 &tun_key.ip_tos, &tun_key_mask.ip_tos,
1636 &tun_key.ip_ttl, &tun_key_mask.ip_ttl, &n)) {
1640 tun_key.tun_id = htonll(tun_id);
1641 tun_key_mask.tun_id = htonll(tun_id_mask);
1642 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1643 tun_key.flags = flags;
1644 tun_key_mask.flags = UINT16_MAX;
1654 tun_key_to_attr(key, &tun_key);
1656 tun_key_to_attr(mask, &tun_key_mask);
1659 } else if (ovs_scan(s, "tunnel(tun_id=%"SCNi64","
1660 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1661 ",tos=%"SCNi8",ttl=%"SCNi8",flags%n", &tun_id,
1662 IP_SCAN_ARGS(&tun_key.ip_src),
1663 IP_SCAN_ARGS(&tun_key.ip_dst),
1664 &tun_key.ip_tos, &tun_key.ip_ttl, &n)) {
1668 tun_key.tun_id = htonll(tun_id);
1669 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1670 tun_key.flags = flags;
1680 tun_key_to_attr(key, &tun_key);
1683 memset(&tun_key, 0xff, sizeof tun_key);
1684 tun_key_to_attr(mask, &tun_key);
1692 uint32_t in_port_mask;
1695 if (mask && ovs_scan(s, "in_port(%"SCNi32"/%"SCNi32")%n",
1696 &in_port, &in_port_mask, &n)) {
1697 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1698 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1700 } else if (ovs_scan(s, "in_port(%"SCNi32")%n", &in_port, &n)) {
1701 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1703 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1710 if (port_names && !strncmp(s, "in_port(", 8)) {
1712 const struct simap_node *node;
1716 name_len = strcspn(name, ")");
1717 node = simap_find_len(port_names, name, name_len);
1719 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
1722 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1724 return 8 + name_len + 1;
1729 struct ovs_key_ethernet eth_key;
1730 struct ovs_key_ethernet eth_key_mask;
1733 if (mask && ovs_scan(s,
1734 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1735 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1736 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1737 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1738 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1739 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n)) {
1740 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1741 ð_key, sizeof eth_key);
1742 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1743 ð_key_mask, sizeof eth_key_mask);
1745 } else if (ovs_scan(s, "eth(src="ETH_ADDR_SCAN_FMT","
1746 "dst="ETH_ADDR_SCAN_FMT")%n",
1747 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1748 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n)) {
1749 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1750 ð_key, sizeof eth_key);
1753 memset(ð_key, 0xff, sizeof eth_key);
1754 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1755 ð_key, sizeof eth_key);
1767 if (mask && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i)%n",
1768 &vid, &vid_mask, &pcp, &pcp_mask, &n)) {
1769 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1770 htons((vid << VLAN_VID_SHIFT) |
1771 (pcp << VLAN_PCP_SHIFT) |
1773 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1774 htons((vid_mask << VLAN_VID_SHIFT) |
1775 (pcp_mask << VLAN_PCP_SHIFT) |
1776 (1 << VLAN_CFI_SHIFT)));
1778 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)) {
1779 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1780 htons((vid << VLAN_VID_SHIFT) |
1781 (pcp << VLAN_PCP_SHIFT) |
1784 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1788 && ovs_scan(s, "vlan(vid=%i/%i,pcp=%i/%i,cfi=%i/%i)%n",
1789 &vid, &vid_mask, &pcp, &pcp_mask,
1790 &cfi, &cfi_mask, &n)) {
1791 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1792 htons((vid << VLAN_VID_SHIFT) |
1793 (pcp << VLAN_PCP_SHIFT) |
1794 (cfi ? VLAN_CFI : 0)));
1795 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1796 htons((vid_mask << VLAN_VID_SHIFT) |
1797 (pcp_mask << VLAN_PCP_SHIFT) |
1798 (cfi_mask << VLAN_CFI_SHIFT)));
1800 } else if (ovs_scan(s, "vlan(vid=%i,pcp=%i,cfi=%i)%n",
1801 &vid, &pcp, &cfi, &n)) {
1802 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1803 htons((vid << VLAN_VID_SHIFT) |
1804 (pcp << VLAN_PCP_SHIFT) |
1805 (cfi ? VLAN_CFI : 0)));
1807 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
1818 if (mask && ovs_scan(s, "eth_type(%i/%i)%n",
1819 ð_type, ð_type_mask, &n)) {
1820 if (eth_type != 0) {
1821 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1823 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1825 } else if (ovs_scan(s, "eth_type(%i)%n", ð_type, &n)) {
1826 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1828 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
1835 int label, tc, ttl, bos;
1836 int label_mask, tc_mask, ttl_mask, bos_mask;
1839 if (mask && ovs_scan(s, "mpls(label=%i/%i,tc=%i/%i,"
1840 "ttl=%i/%i,bos=%i/%i)%n",
1841 &label, &label_mask, &tc, &tc_mask,
1842 &ttl, &ttl_mask, &bos, &bos_mask, &n)) {
1843 struct ovs_key_mpls *mpls, *mpls_mask;
1845 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1847 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1849 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1851 mpls_mask->mpls_lse = mpls_lse_from_components(
1852 label_mask, tc_mask, ttl_mask, bos_mask);
1854 } else if (ovs_scan(s, "mpls(label=%i,tc=%i,ttl=%i,bos=%i)%n",
1855 &label, &tc, &ttl, &bos, &n)) {
1856 struct ovs_key_mpls *mpls;
1858 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1860 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1862 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1864 mpls->mpls_lse = OVS_BE32_MAX;
1872 struct ovs_key_ipv4 ipv4_key;
1873 struct ovs_key_ipv4 ipv4_mask;
1876 enum ovs_frag_type ipv4_frag;
1880 && ovs_scan(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1881 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1882 "proto=%"SCNi8"/%"SCNi8","
1883 "tos=%"SCNi8"/%"SCNi8","
1884 "ttl=%"SCNi8"/%"SCNi8","
1885 "frag=%7[a-z]/%"SCNi8")%n",
1886 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1887 IP_SCAN_ARGS(&ipv4_mask.ipv4_src),
1888 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1889 IP_SCAN_ARGS(&ipv4_mask.ipv4_dst),
1890 &ipv4_key.ipv4_proto, &ipv4_mask.ipv4_proto,
1891 &ipv4_key.ipv4_tos, &ipv4_mask.ipv4_tos,
1892 &ipv4_key.ipv4_ttl, &ipv4_mask.ipv4_ttl,
1893 frag, &ipv4_mask.ipv4_frag, &n)
1894 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1895 ipv4_key.ipv4_frag = ipv4_frag;
1896 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1897 &ipv4_key, sizeof ipv4_key);
1899 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1900 &ipv4_mask, sizeof ipv4_mask);
1902 } else if (ovs_scan(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
1903 "proto=%"SCNi8",tos=%"SCNi8",ttl=%"SCNi8","
1905 IP_SCAN_ARGS(&ipv4_key.ipv4_src),
1906 IP_SCAN_ARGS(&ipv4_key.ipv4_dst),
1907 &ipv4_key.ipv4_proto,
1911 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1912 ipv4_key.ipv4_frag = ipv4_frag;
1913 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1914 &ipv4_key, sizeof ipv4_key);
1917 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1918 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1919 &ipv4_key, sizeof ipv4_key);
1926 char ipv6_src_s[IPV6_SCAN_LEN + 1];
1927 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
1928 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
1929 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1930 int ipv6_label, ipv6_label_mask;
1931 int ipv6_proto, ipv6_proto_mask;
1932 int ipv6_tclass, ipv6_tclass_mask;
1933 int ipv6_hlimit, ipv6_hlimit_mask;
1935 enum ovs_frag_type ipv6_frag;
1939 if (mask && ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
1940 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
1941 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
1942 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
1943 ipv6_src_s, ipv6_src_mask_s,
1944 ipv6_dst_s, ipv6_dst_mask_s,
1945 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
1946 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
1947 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
1948 &ipv6_frag_mask, &n)
1949 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1950 struct ovs_key_ipv6 ipv6_key;
1951 struct ovs_key_ipv6 ipv6_mask;
1953 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1954 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
1955 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
1956 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
1960 ipv6_key.ipv6_label = htonl(ipv6_label);
1961 ipv6_key.ipv6_proto = ipv6_proto;
1962 ipv6_key.ipv6_tclass = ipv6_tclass;
1963 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1964 ipv6_key.ipv6_frag = ipv6_frag;
1965 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1966 &ipv6_key, sizeof ipv6_key);
1968 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
1969 ipv6_mask.ipv6_proto = ipv6_proto_mask;
1970 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
1971 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
1972 ipv6_mask.ipv6_frag = ipv6_frag_mask;
1973 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1974 &ipv6_mask, sizeof ipv6_mask);
1976 } else if (ovs_scan(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
1977 "label=%i,proto=%i,tclass=%i,hlimit=%i,"
1979 ipv6_src_s, ipv6_dst_s, &ipv6_label,
1980 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n)
1981 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1982 struct ovs_key_ipv6 ipv6_key;
1984 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1985 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1988 ipv6_key.ipv6_label = htonl(ipv6_label);
1989 ipv6_key.ipv6_proto = ipv6_proto;
1990 ipv6_key.ipv6_tclass = ipv6_tclass;
1991 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1992 ipv6_key.ipv6_frag = ipv6_frag;
1993 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1994 &ipv6_key, sizeof ipv6_key);
1997 memset(&ipv6_key, 0xff, sizeof ipv6_key);
1998 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1999 &ipv6_key, sizeof ipv6_key);
2012 if (mask && ovs_scan(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2013 &tcp_src, &tcp_src_mask, &tcp_dst,
2014 &tcp_dst_mask, &n)) {
2015 struct ovs_key_tcp tcp_key;
2016 struct ovs_key_tcp tcp_mask;
2018 tcp_key.tcp_src = htons(tcp_src);
2019 tcp_key.tcp_dst = htons(tcp_dst);
2020 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2022 tcp_mask.tcp_src = htons(tcp_src_mask);
2023 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2024 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2025 &tcp_mask, sizeof tcp_mask);
2027 } else if (ovs_scan(s, "tcp(src=%i,dst=%i)%n",
2028 &tcp_src, &tcp_dst, &n)) {
2029 struct ovs_key_tcp tcp_key;
2031 tcp_key.tcp_src = htons(tcp_src);
2032 tcp_key.tcp_dst = htons(tcp_dst);
2033 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2036 memset(&tcp_key, 0xff, sizeof tcp_key);
2037 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2038 &tcp_key, sizeof tcp_key);
2045 uint16_t tcp_flags, tcp_flags_mask;
2048 if (mask && ovs_scan(s, "tcp_flags(%"SCNi16"/%"SCNi16")%n",
2049 &tcp_flags, &tcp_flags_mask, &n) > 0 && n > 0) {
2050 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2051 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags_mask));
2053 } else if (ovs_scan(s, "tcp_flags(%"SCNi16")%n", &tcp_flags, &n)) {
2054 nl_msg_put_be16(key, OVS_KEY_ATTR_TCP_FLAGS, htons(tcp_flags));
2056 nl_msg_put_be16(mask, OVS_KEY_ATTR_TCP_FLAGS,
2070 if (mask && ovs_scan(s, "udp(src=%i/%i,dst=%i/%i)%n",
2071 &udp_src, &udp_src_mask,
2072 &udp_dst, &udp_dst_mask, &n)) {
2073 struct ovs_key_udp udp_key;
2074 struct ovs_key_udp udp_mask;
2076 udp_key.udp_src = htons(udp_src);
2077 udp_key.udp_dst = htons(udp_dst);
2078 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2080 udp_mask.udp_src = htons(udp_src_mask);
2081 udp_mask.udp_dst = htons(udp_dst_mask);
2082 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2083 &udp_mask, sizeof udp_mask);
2086 if (ovs_scan(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n)) {
2087 struct ovs_key_udp udp_key;
2089 udp_key.udp_src = htons(udp_src);
2090 udp_key.udp_dst = htons(udp_dst);
2091 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2094 memset(&udp_key, 0xff, sizeof udp_key);
2095 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2108 if (mask && ovs_scan(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2109 &sctp_src, &sctp_src_mask,
2110 &sctp_dst, &sctp_dst_mask, &n)) {
2111 struct ovs_key_sctp sctp_key;
2112 struct ovs_key_sctp sctp_mask;
2114 sctp_key.sctp_src = htons(sctp_src);
2115 sctp_key.sctp_dst = htons(sctp_dst);
2116 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2118 sctp_mask.sctp_src = htons(sctp_src_mask);
2119 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2120 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2121 &sctp_mask, sizeof sctp_mask);
2124 if (ovs_scan(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n)) {
2125 struct ovs_key_sctp sctp_key;
2127 sctp_key.sctp_src = htons(sctp_src);
2128 sctp_key.sctp_dst = htons(sctp_dst);
2129 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2132 memset(&sctp_key, 0xff, sizeof sctp_key);
2133 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2140 struct ovs_key_icmp icmp_key;
2141 struct ovs_key_icmp icmp_mask;
2144 if (mask && ovs_scan(s, "icmp(type=%"SCNi8"/%"SCNi8","
2145 "code=%"SCNi8"/%"SCNi8")%n",
2146 &icmp_key.icmp_type, &icmp_mask.icmp_type,
2147 &icmp_key.icmp_code, &icmp_mask.icmp_code, &n)) {
2148 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2149 &icmp_key, sizeof icmp_key);
2150 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2151 &icmp_mask, sizeof icmp_mask);
2153 } else if (ovs_scan(s, "icmp(type=%"SCNi8",code=%"SCNi8")%n",
2154 &icmp_key.icmp_type, &icmp_key.icmp_code, &n)) {
2155 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2156 &icmp_key, sizeof icmp_key);
2158 memset(&icmp_key, 0xff, sizeof icmp_key);
2159 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2167 struct ovs_key_icmpv6 icmpv6_key;
2168 struct ovs_key_icmpv6 icmpv6_mask;
2171 if (mask && ovs_scan(s, "icmpv6(type=%"SCNi8"/%"SCNi8","
2172 "code=%"SCNi8"/%"SCNi8")%n",
2173 &icmpv6_key.icmpv6_type, &icmpv6_mask.icmpv6_type,
2174 &icmpv6_key.icmpv6_code, &icmpv6_mask.icmpv6_code,
2176 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2177 &icmpv6_key, sizeof icmpv6_key);
2178 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2179 sizeof icmpv6_mask);
2181 } else if (ovs_scan(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
2182 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,
2184 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2185 &icmpv6_key, sizeof icmpv6_key);
2188 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2189 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2197 struct ovs_key_arp arp_key;
2198 struct ovs_key_arp arp_mask;
2199 uint16_t arp_op, arp_op_mask;
2202 if (mask && ovs_scan(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2203 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2204 "op=%"SCNi16"/%"SCNi16","
2205 "sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2206 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2207 IP_SCAN_ARGS(&arp_key.arp_sip),
2208 IP_SCAN_ARGS(&arp_mask.arp_sip),
2209 IP_SCAN_ARGS(&arp_key.arp_tip),
2210 IP_SCAN_ARGS(&arp_mask.arp_tip),
2211 &arp_op, &arp_op_mask,
2212 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2213 ETH_ADDR_SCAN_ARGS(arp_mask.arp_sha),
2214 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha),
2215 ETH_ADDR_SCAN_ARGS(arp_mask.arp_tha), &n)) {
2216 arp_key.arp_op = htons(arp_op);
2217 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2218 arp_mask.arp_op = htons(arp_op_mask);
2219 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2220 &arp_mask, sizeof arp_mask);
2222 } else if (ovs_scan(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
2223 "op=%"SCNi16",sha="ETH_ADDR_SCAN_FMT","
2224 "tha="ETH_ADDR_SCAN_FMT")%n",
2225 IP_SCAN_ARGS(&arp_key.arp_sip),
2226 IP_SCAN_ARGS(&arp_key.arp_tip),
2228 ETH_ADDR_SCAN_ARGS(arp_key.arp_sha),
2229 ETH_ADDR_SCAN_ARGS(arp_key.arp_tha), &n)) {
2230 arp_key.arp_op = htons(arp_op);
2231 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2234 memset(&arp_key, 0xff, sizeof arp_key);
2235 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2236 &arp_key, sizeof arp_key);
2243 char nd_target_s[IPV6_SCAN_LEN + 1];
2244 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
2245 uint8_t nd_sll[ETH_ADDR_LEN];
2246 uint8_t nd_sll_mask[ETH_ADDR_LEN];
2247 uint8_t nd_tll[ETH_ADDR_LEN];
2248 uint8_t nd_tll_mask[ETH_ADDR_LEN];
2251 nd_target_mask_s[0] = 0;
2252 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2253 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
2255 if (mask && ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2256 nd_target_s, nd_target_mask_s, &n)) {
2257 put_nd_key(n, nd_target_s, NULL, NULL, key);
2258 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2259 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT")%n",
2261 put_nd_key(n, nd_target_s, NULL, NULL, key);
2263 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
2266 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2267 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2268 nd_target_s, nd_target_mask_s,
2269 ETH_ADDR_SCAN_ARGS(nd_sll),
2270 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n)) {
2271 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2272 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2273 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2274 "sll="ETH_ADDR_SCAN_FMT")%n",
2275 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n)) {
2276 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2278 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
2281 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2282 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2283 nd_target_s, nd_target_mask_s,
2284 ETH_ADDR_SCAN_ARGS(nd_tll),
2285 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n)) {
2286 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2287 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2288 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2289 "tll="ETH_ADDR_SCAN_FMT")%n",
2290 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2291 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2293 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
2296 ovs_scan(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2297 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2298 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2299 nd_target_s, nd_target_mask_s,
2300 ETH_ADDR_SCAN_ARGS(nd_sll),
2301 ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2302 ETH_ADDR_SCAN_ARGS(nd_tll),
2303 ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2305 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2306 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
2307 } else if (ovs_scan(s, "nd(target="IPV6_SCAN_FMT","
2308 "sll="ETH_ADDR_SCAN_FMT","
2309 "tll="ETH_ADDR_SCAN_FMT")%n",
2310 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2311 ETH_ADDR_SCAN_ARGS(nd_tll), &n)) {
2312 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2314 put_nd_mask(n, nd_target_mask_s,
2315 nd_sll_mask, nd_tll_mask, mask);
2324 if (!strncmp(s, "encap(", 6)) {
2325 const char *start = s;
2326 size_t encap, encap_mask = 0;
2328 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
2330 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2337 s += strspn(s, ", \t\r\n");
2340 } else if (*s == ')') {
2344 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2352 nl_msg_end_nested(key, encap);
2354 nl_msg_end_nested(mask, encap_mask);
2363 /* Parses the string representation of a datapath flow key, in the
2364 * format output by odp_flow_key_format(). Returns 0 if successful,
2365 * otherwise a positive errno value. On success, the flow key is
2366 * appended to 'key' as a series of Netlink attributes. On failure, no
2367 * data is appended to 'key'. Either way, 'key''s data might be
2370 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2371 * to a port number. (Port names may be used instead of port numbers in
2374 * On success, the attributes appended to 'key' are individually syntactically
2375 * valid, but they may not be valid as a sequence. 'key' might, for example,
2376 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
2378 odp_flow_from_string(const char *s, const struct simap *port_names,
2379 struct ofpbuf *key, struct ofpbuf *mask)
2381 const size_t old_size = key->size;
2385 s += strspn(s, delimiters);
2390 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
2392 key->size = old_size;
2402 ovs_to_odp_frag(uint8_t nw_frag)
2404 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2405 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2406 : OVS_FRAG_TYPE_LATER);
2410 ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2412 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2414 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2415 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2421 odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2422 const struct flow *flow, odp_port_t odp_in_port,
2423 size_t max_mpls_depth)
2426 struct ovs_key_ethernet *eth_key;
2429 /* We assume that if 'data' and 'flow' are not the same, we should
2430 * treat 'data' as a mask. */
2431 is_mask = (data != flow);
2433 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
2435 if (flow->tunnel.ip_dst || is_mask) {
2436 tun_key_to_attr(buf, &data->tunnel);
2439 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
2441 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2442 * is not the magical value "ODPP_NONE". */
2443 if (is_mask || odp_in_port != ODPP_NONE) {
2444 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
2447 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
2449 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2450 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
2452 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
2454 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2456 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2458 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
2459 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
2460 if (flow->vlan_tci == htons(0)) {
2467 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2468 /* For backwards compatibility with kernels that don't support
2469 * wildcarding, the following convention is used to encode the
2470 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2473 * -------- -------- -------
2474 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2475 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2476 * <none> 0xffff Any non-Ethernet II frame (except valid
2477 * 802.3 SNAP packet with valid eth_type).
2480 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
2485 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
2487 if (flow->dl_type == htons(ETH_TYPE_IP)) {
2488 struct ovs_key_ipv4 *ipv4_key;
2490 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
2492 ipv4_key->ipv4_src = data->nw_src;
2493 ipv4_key->ipv4_dst = data->nw_dst;
2494 ipv4_key->ipv4_proto = data->nw_proto;
2495 ipv4_key->ipv4_tos = data->nw_tos;
2496 ipv4_key->ipv4_ttl = data->nw_ttl;
2497 ipv4_key->ipv4_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2498 : ovs_to_odp_frag(data->nw_frag);
2499 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
2500 struct ovs_key_ipv6 *ipv6_key;
2502 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
2504 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2505 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2506 ipv6_key->ipv6_label = data->ipv6_label;
2507 ipv6_key->ipv6_proto = data->nw_proto;
2508 ipv6_key->ipv6_tclass = data->nw_tos;
2509 ipv6_key->ipv6_hlimit = data->nw_ttl;
2510 ipv6_key->ipv6_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2511 : ovs_to_odp_frag(data->nw_frag);
2512 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2513 flow->dl_type == htons(ETH_TYPE_RARP)) {
2514 struct ovs_key_arp *arp_key;
2516 arp_key = nl_msg_put_unspec_zero(buf, OVS_KEY_ATTR_ARP,
2518 arp_key->arp_sip = data->nw_src;
2519 arp_key->arp_tip = data->nw_dst;
2520 arp_key->arp_op = htons(data->nw_proto);
2521 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2522 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
2523 } else if (eth_type_mpls(flow->dl_type)) {
2524 struct ovs_key_mpls *mpls_key;
2527 n = flow_count_mpls_labels(flow, NULL);
2528 n = MIN(n, max_mpls_depth);
2529 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2530 n * sizeof *mpls_key);
2531 for (i = 0; i < n; i++) {
2532 mpls_key[i].mpls_lse = data->mpls_lse[i];
2536 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2537 if (flow->nw_proto == IPPROTO_TCP) {
2538 struct ovs_key_tcp *tcp_key;
2540 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
2542 tcp_key->tcp_src = data->tp_src;
2543 tcp_key->tcp_dst = data->tp_dst;
2545 if (data->tcp_flags) {
2546 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2548 } else if (flow->nw_proto == IPPROTO_UDP) {
2549 struct ovs_key_udp *udp_key;
2551 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
2553 udp_key->udp_src = data->tp_src;
2554 udp_key->udp_dst = data->tp_dst;
2555 } else if (flow->nw_proto == IPPROTO_SCTP) {
2556 struct ovs_key_sctp *sctp_key;
2558 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2560 sctp_key->sctp_src = data->tp_src;
2561 sctp_key->sctp_dst = data->tp_dst;
2562 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2563 && flow->nw_proto == IPPROTO_ICMP) {
2564 struct ovs_key_icmp *icmp_key;
2566 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
2568 icmp_key->icmp_type = ntohs(data->tp_src);
2569 icmp_key->icmp_code = ntohs(data->tp_dst);
2570 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2571 && flow->nw_proto == IPPROTO_ICMPV6) {
2572 struct ovs_key_icmpv6 *icmpv6_key;
2574 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
2575 sizeof *icmpv6_key);
2576 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2577 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
2579 if (flow->tp_dst == htons(0) &&
2580 (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2581 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) &&
2582 (!is_mask || (data->tp_src == htons(0xffff) &&
2583 data->tp_dst == htons(0xffff)))) {
2585 struct ovs_key_nd *nd_key;
2587 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
2589 memcpy(nd_key->nd_target, &data->nd_target,
2590 sizeof nd_key->nd_target);
2591 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2592 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
2599 nl_msg_end_nested(buf, encap);
2603 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2604 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2605 * number rather than a datapath port number). Instead, if 'odp_in_port'
2606 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2609 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2610 * capable of being expanded to allow for that much space. */
2612 odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2613 odp_port_t odp_in_port)
2615 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port, SIZE_MAX);
2618 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2619 * 'buf'. 'flow' is used as a template to determine how to interpret
2620 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2621 * it doesn't indicate whether the other fields should be interpreted as
2622 * ARP, IPv4, IPv6, etc.
2624 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2625 * capable of being expanded to allow for that much space. */
2627 odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2628 const struct flow *flow, uint32_t odp_in_port_mask,
2629 size_t max_mpls_depth)
2631 odp_flow_key_from_flow__(buf, mask, flow, u32_to_odp(odp_in_port_mask),
2635 /* Generate ODP flow key from the given packet metadata */
2637 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
2639 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
2641 if (md->tunnel.ip_dst) {
2642 tun_key_to_attr(buf, &md->tunnel);
2645 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
2647 /* Add an ingress port attribute if 'odp_in_port' is not the magical
2648 * value "ODPP_NONE". */
2649 if (md->in_port.odp_port != ODPP_NONE) {
2650 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
2654 /* Generate packet metadata from the given ODP flow key. */
2656 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
2657 struct pkt_metadata *md)
2659 const struct nlattr *nla;
2661 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
2662 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
2663 1u << OVS_KEY_ATTR_IN_PORT;
2665 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
2667 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2668 uint16_t type = nl_attr_type(nla);
2669 size_t len = nl_attr_get_size(nla);
2670 int expected_len = odp_flow_key_attr_len(type);
2672 if (len != expected_len && expected_len >= 0) {
2676 if (type == OVS_KEY_ATTR_PRIORITY) {
2677 md->skb_priority = nl_attr_get_u32(nla);
2678 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
2679 } else if (type == OVS_KEY_ATTR_SKB_MARK) {
2680 md->pkt_mark = nl_attr_get_u32(nla);
2681 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
2682 } else if (type == OVS_KEY_ATTR_TUNNEL) {
2683 enum odp_key_fitness res;
2685 res = odp_tun_key_from_attr(nla, &md->tunnel);
2686 if (res == ODP_FIT_ERROR) {
2687 memset(&md->tunnel, 0, sizeof md->tunnel);
2688 } else if (res == ODP_FIT_PERFECT) {
2689 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
2691 } else if (type == OVS_KEY_ATTR_IN_PORT) {
2692 md->in_port.odp_port = nl_attr_get_odp_port(nla);
2693 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
2696 if (!wanted_attrs) {
2697 return; /* Have everything. */
2703 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2705 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
2706 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2707 key_len / sizeof(uint32_t), 0);
2711 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
2712 uint64_t attrs, int out_of_range_attr,
2713 const struct nlattr *key, size_t key_len)
2718 if (VLOG_DROP_DBG(rl)) {
2723 for (i = 0; i < 64; i++) {
2724 if (attrs & (UINT64_C(1) << i)) {
2725 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2727 ds_put_format(&s, " %s",
2728 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
2731 if (out_of_range_attr) {
2732 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2735 ds_put_cstr(&s, ": ");
2736 odp_flow_key_format(key, key_len, &s);
2738 VLOG_DBG("%s:%s", title, ds_cstr(&s));
2743 odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
2745 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2747 if (odp_frag > OVS_FRAG_TYPE_LATER) {
2748 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
2752 if (odp_frag != OVS_FRAG_TYPE_NONE) {
2753 flow->nw_frag |= FLOW_NW_FRAG_ANY;
2754 if (odp_frag == OVS_FRAG_TYPE_LATER) {
2755 flow->nw_frag |= FLOW_NW_FRAG_LATER;
2762 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
2763 const struct nlattr *attrs[], uint64_t *present_attrsp,
2764 int *out_of_range_attrp)
2766 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2767 const struct nlattr *nla;
2768 uint64_t present_attrs;
2771 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
2773 *out_of_range_attrp = 0;
2774 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
2775 uint16_t type = nl_attr_type(nla);
2776 size_t len = nl_attr_get_size(nla);
2777 int expected_len = odp_flow_key_attr_len(type);
2779 if (len != expected_len && expected_len >= 0) {
2780 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2782 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
2783 "length %d", ovs_key_attr_to_string(type, namebuf,
2789 if (type > OVS_KEY_ATTR_MAX) {
2790 *out_of_range_attrp = type;
2792 if (present_attrs & (UINT64_C(1) << type)) {
2793 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2795 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
2796 ovs_key_attr_to_string(type,
2797 namebuf, sizeof namebuf));
2801 present_attrs |= UINT64_C(1) << type;
2806 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
2810 *present_attrsp = present_attrs;
2814 static enum odp_key_fitness
2815 check_expectations(uint64_t present_attrs, int out_of_range_attr,
2816 uint64_t expected_attrs,
2817 const struct nlattr *key, size_t key_len)
2819 uint64_t missing_attrs;
2820 uint64_t extra_attrs;
2822 missing_attrs = expected_attrs & ~present_attrs;
2823 if (missing_attrs) {
2824 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2825 log_odp_key_attributes(&rl, "expected but not present",
2826 missing_attrs, 0, key, key_len);
2827 return ODP_FIT_TOO_LITTLE;
2830 extra_attrs = present_attrs & ~expected_attrs;
2831 if (extra_attrs || out_of_range_attr) {
2832 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2833 log_odp_key_attributes(&rl, "present but not expected",
2834 extra_attrs, out_of_range_attr, key, key_len);
2835 return ODP_FIT_TOO_MUCH;
2838 return ODP_FIT_PERFECT;
2842 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2843 uint64_t present_attrs, uint64_t *expected_attrs,
2844 struct flow *flow, const struct flow *src_flow)
2846 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2847 bool is_mask = flow != src_flow;
2849 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
2850 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
2851 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
2852 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2853 ntohs(flow->dl_type));
2856 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2857 flow->dl_type != htons(0xffff)) {
2860 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
2863 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2864 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
2865 /* See comments in odp_flow_key_from_flow__(). */
2866 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
2873 static enum odp_key_fitness
2874 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2875 uint64_t present_attrs, int out_of_range_attr,
2876 uint64_t expected_attrs, struct flow *flow,
2877 const struct nlattr *key, size_t key_len,
2878 const struct flow *src_flow)
2880 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2881 bool is_mask = src_flow != flow;
2882 const void *check_start = NULL;
2883 size_t check_len = 0;
2884 enum ovs_key_attr expected_bit = 0xff;
2886 if (eth_type_mpls(src_flow->dl_type)) {
2887 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
2888 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
2889 int n = size / sizeof(ovs_be32);
2892 if (!size || size % sizeof(ovs_be32)) {
2893 return ODP_FIT_ERROR;
2897 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2899 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2900 return ODP_FIT_TOO_LITTLE;
2902 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
2903 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
2904 return ODP_FIT_ERROR;
2906 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2909 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
2910 flow->mpls_lse[i] = mpls_lse[i];
2912 if (n > FLOW_MAX_MPLS_LABELS) {
2913 return ODP_FIT_TOO_MUCH;
2917 /* BOS may be set only in the innermost label. */
2918 for (i = 0; i < n - 1; i++) {
2919 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
2920 return ODP_FIT_ERROR;
2924 /* BOS must be set in the innermost label. */
2925 if (n < FLOW_MAX_MPLS_LABELS
2926 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
2927 return ODP_FIT_TOO_LITTLE;
2932 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
2934 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
2936 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
2937 const struct ovs_key_ipv4 *ipv4_key;
2939 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
2940 flow->nw_src = ipv4_key->ipv4_src;
2941 flow->nw_dst = ipv4_key->ipv4_dst;
2942 flow->nw_proto = ipv4_key->ipv4_proto;
2943 flow->nw_tos = ipv4_key->ipv4_tos;
2944 flow->nw_ttl = ipv4_key->ipv4_ttl;
2946 flow->nw_frag = ipv4_key->ipv4_frag;
2947 check_start = ipv4_key;
2948 check_len = sizeof *ipv4_key;
2949 expected_bit = OVS_KEY_ATTR_IPV4;
2950 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
2951 return ODP_FIT_ERROR;
2954 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
2956 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
2958 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
2959 const struct ovs_key_ipv6 *ipv6_key;
2961 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
2962 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
2963 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
2964 flow->ipv6_label = ipv6_key->ipv6_label;
2965 flow->nw_proto = ipv6_key->ipv6_proto;
2966 flow->nw_tos = ipv6_key->ipv6_tclass;
2967 flow->nw_ttl = ipv6_key->ipv6_hlimit;
2969 flow->nw_frag = ipv6_key->ipv6_frag;
2970 check_start = ipv6_key;
2971 check_len = sizeof *ipv6_key;
2972 expected_bit = OVS_KEY_ATTR_IPV6;
2973 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
2974 return ODP_FIT_ERROR;
2977 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
2978 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
2980 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
2982 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
2983 const struct ovs_key_arp *arp_key;
2985 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
2986 flow->nw_src = arp_key->arp_sip;
2987 flow->nw_dst = arp_key->arp_tip;
2988 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
2989 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
2990 "key", ntohs(arp_key->arp_op));
2991 return ODP_FIT_ERROR;
2993 flow->nw_proto = ntohs(arp_key->arp_op);
2994 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
2995 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
2998 check_start = arp_key;
2999 check_len = sizeof *arp_key;
3000 expected_bit = OVS_KEY_ATTR_ARP;
3006 if (check_len > 0) { /* Happens only when 'is_mask'. */
3007 if (!is_all_zeros(check_start, check_len) &&
3008 flow->dl_type != htons(0xffff)) {
3009 return ODP_FIT_ERROR;
3011 expected_attrs |= UINT64_C(1) << expected_bit;
3015 expected_bit = OVS_KEY_ATTR_UNSPEC;
3016 if (src_flow->nw_proto == IPPROTO_TCP
3017 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3018 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3019 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3021 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3023 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3024 const struct ovs_key_tcp *tcp_key;
3026 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3027 flow->tp_src = tcp_key->tcp_src;
3028 flow->tp_dst = tcp_key->tcp_dst;
3029 expected_bit = OVS_KEY_ATTR_TCP;
3031 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3032 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3033 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3035 } else if (src_flow->nw_proto == IPPROTO_UDP
3036 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3037 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3038 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3040 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
3042 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3043 const struct ovs_key_udp *udp_key;
3045 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3046 flow->tp_src = udp_key->udp_src;
3047 flow->tp_dst = udp_key->udp_dst;
3048 expected_bit = OVS_KEY_ATTR_UDP;
3050 } else if (src_flow->nw_proto == IPPROTO_SCTP
3051 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3052 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3053 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3055 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3057 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3058 const struct ovs_key_sctp *sctp_key;
3060 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3061 flow->tp_src = sctp_key->sctp_src;
3062 flow->tp_dst = sctp_key->sctp_dst;
3063 expected_bit = OVS_KEY_ATTR_SCTP;
3065 } else if (src_flow->nw_proto == IPPROTO_ICMP
3066 && src_flow->dl_type == htons(ETH_TYPE_IP)
3067 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3069 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
3071 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
3072 const struct ovs_key_icmp *icmp_key;
3074 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3075 flow->tp_src = htons(icmp_key->icmp_type);
3076 flow->tp_dst = htons(icmp_key->icmp_code);
3077 expected_bit = OVS_KEY_ATTR_ICMP;
3079 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3080 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3081 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3083 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
3085 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
3086 const struct ovs_key_icmpv6 *icmpv6_key;
3088 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3089 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3090 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
3091 expected_bit = OVS_KEY_ATTR_ICMPV6;
3092 if (src_flow->tp_dst == htons(0) &&
3093 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3094 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
3096 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3098 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
3099 const struct ovs_key_nd *nd_key;
3101 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3102 memcpy(&flow->nd_target, nd_key->nd_target,
3103 sizeof flow->nd_target);
3104 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3105 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
3107 if (!is_all_zeros((const uint8_t *) nd_key,
3109 (flow->tp_src != htons(0xffff) ||
3110 flow->tp_dst != htons(0xffff))) {
3111 return ODP_FIT_ERROR;
3113 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3120 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3121 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3122 return ODP_FIT_ERROR;
3124 expected_attrs |= UINT64_C(1) << expected_bit;
3129 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3133 /* Parse 802.1Q header then encapsulated L3 attributes. */
3134 static enum odp_key_fitness
3135 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3136 uint64_t present_attrs, int out_of_range_attr,
3137 uint64_t expected_attrs, struct flow *flow,
3138 const struct nlattr *key, size_t key_len,
3139 const struct flow *src_flow)
3141 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3142 bool is_mask = src_flow != flow;
3144 const struct nlattr *encap
3145 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3146 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3147 enum odp_key_fitness encap_fitness;
3148 enum odp_key_fitness fitness;
3151 /* Calculate fitness of outer attributes. */
3153 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3154 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3156 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3157 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3159 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3160 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3163 fitness = check_expectations(present_attrs, out_of_range_attr,
3164 expected_attrs, key, key_len);
3166 /* Get the VLAN TCI value. */
3167 if (!is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3168 return ODP_FIT_TOO_LITTLE;
3170 tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3171 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3174 if (tci == htons(0)) {
3175 /* Corner case for a truncated 802.1Q header. */
3176 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3177 return ODP_FIT_TOO_MUCH;
3180 } else if (!(tci & htons(VLAN_CFI))) {
3181 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3182 "but CFI bit is not set", ntohs(tci));
3183 return ODP_FIT_ERROR;
3187 * Remove the TPID from dl_type since it's not the real Ethertype. */
3188 flow->dl_type = htons(0);
3189 flow->vlan_tci = tci;
3192 if (is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3195 /* Now parse the encapsulated attributes. */
3196 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3197 attrs, &present_attrs, &out_of_range_attr)) {
3198 return ODP_FIT_ERROR;
3202 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
3203 return ODP_FIT_ERROR;
3205 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3206 expected_attrs, flow, key, key_len,
3209 /* The overall fitness is the worse of the outer and inner attributes. */
3210 return MAX(fitness, encap_fitness);
3213 static enum odp_key_fitness
3214 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3215 struct flow *flow, const struct flow *src_flow)
3217 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3218 uint64_t expected_attrs;
3219 uint64_t present_attrs;
3220 int out_of_range_attr;
3221 bool is_mask = src_flow != flow;
3223 memset(flow, 0, sizeof *flow);
3225 /* Parse attributes. */
3226 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3227 &out_of_range_attr)) {
3228 return ODP_FIT_ERROR;
3233 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
3234 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
3235 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3238 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
3239 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
3240 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3243 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3244 enum odp_key_fitness res;
3246 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
3247 if (res == ODP_FIT_ERROR) {
3248 return ODP_FIT_ERROR;
3249 } else if (res == ODP_FIT_PERFECT) {
3250 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
3254 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
3255 flow->in_port.odp_port
3256 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
3257 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
3258 } else if (!is_mask) {
3259 flow->in_port.odp_port = ODPP_NONE;
3262 /* Ethernet header. */
3263 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3264 const struct ovs_key_ethernet *eth_key;
3266 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3267 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3268 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
3270 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3274 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3277 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
3278 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3280 return ODP_FIT_ERROR;
3284 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3285 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
3286 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
3287 expected_attrs, flow, key, key_len, src_flow);
3290 flow->vlan_tci = htons(0xffff);
3291 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3292 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3293 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3296 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
3297 expected_attrs, flow, key, key_len, src_flow);
3300 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3301 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3302 * 'key' fits our expectations for what a flow key should contain.
3304 * The 'in_port' will be the datapath's understanding of the port. The
3305 * caller will need to translate with odp_port_to_ofp_port() if the
3306 * OpenFlow port is needed.
3308 * This function doesn't take the packet itself as an argument because none of
3309 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3310 * it is always possible to infer which additional attribute(s) should appear
3311 * by looking at the attributes for lower-level protocols, e.g. if the network
3312 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3313 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3314 * must be absent. */
3315 enum odp_key_fitness
3316 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3319 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3322 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3323 * structure in 'mask'. 'flow' must be a previously translated flow
3324 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3325 * 'key' fits our expectations for what a flow key should contain. */
3326 enum odp_key_fitness
3327 odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3328 struct flow *mask, const struct flow *flow)
3330 return odp_flow_key_to_flow__(key, key_len, mask, flow);
3333 /* Returns 'fitness' as a string, for use in debug messages. */
3335 odp_key_fitness_to_string(enum odp_key_fitness fitness)
3338 case ODP_FIT_PERFECT:
3340 case ODP_FIT_TOO_MUCH:
3342 case ODP_FIT_TOO_LITTLE:
3343 return "too_little";
3351 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
3352 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3353 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3354 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3355 * null, then the return value is not meaningful.) */
3357 odp_put_userspace_action(uint32_t pid,
3358 const void *userdata, size_t userdata_size,
3359 struct ofpbuf *odp_actions)
3361 size_t userdata_ofs;
3364 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3365 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
3367 userdata_ofs = odp_actions->size + NLA_HDRLEN;
3369 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3370 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3373 * - The kernel rejected shorter userdata with -ERANGE.
3375 * - The kernel silently dropped userdata beyond the first 8 bytes.
3377 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3378 * separately disable features that required more than 8 bytes.) */
3379 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3380 MAX(8, userdata_size)),
3381 userdata, userdata_size);
3385 nl_msg_end_nested(odp_actions, offset);
3387 return userdata_ofs;
3391 odp_put_tunnel_action(const struct flow_tnl *tunnel,
3392 struct ofpbuf *odp_actions)
3394 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3395 tun_key_to_attr(odp_actions, tunnel);
3396 nl_msg_end_nested(odp_actions, offset);
3399 /* The commit_odp_actions() function and its helpers. */
3402 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3403 const void *key, size_t key_size)
3405 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3406 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3407 nl_msg_end_nested(odp_actions, offset);
3411 odp_put_pkt_mark_action(const uint32_t pkt_mark,
3412 struct ofpbuf *odp_actions)
3414 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3418 /* If any of the flow key data that ODP actions can modify are different in
3419 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3420 * 'odp_actions' that change the flow tunneling information in key from
3421 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3422 * same way. In other words, operates the same as commit_odp_actions(), but
3423 * only on tunneling information. */
3425 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
3426 struct ofpbuf *odp_actions)
3428 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3429 if (flow->tunnel.ip_dst) {
3430 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3433 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
3434 odp_put_tunnel_action(&base->tunnel, odp_actions);
3439 commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
3440 struct ofpbuf *odp_actions,
3441 struct flow_wildcards *wc)
3443 struct ovs_key_ethernet eth_key;
3445 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3446 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3450 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3451 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3453 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3454 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3456 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3457 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3459 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3460 ð_key, sizeof(eth_key));
3464 pop_vlan(struct flow *base,
3465 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3467 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3469 if (base->vlan_tci & htons(VLAN_CFI)) {
3470 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3476 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3477 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3479 if (base->vlan_tci == vlan_tci) {
3483 pop_vlan(base, odp_actions, wc);
3484 if (vlan_tci & htons(VLAN_CFI)) {
3485 struct ovs_action_push_vlan vlan;
3487 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
3488 vlan.vlan_tci = vlan_tci;
3489 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3490 &vlan, sizeof vlan);
3492 base->vlan_tci = vlan_tci;
3496 commit_mpls_action(const struct flow *flow, struct flow *base,
3497 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3499 int base_n = flow_count_mpls_labels(base, wc);
3500 int flow_n = flow_count_mpls_labels(flow, wc);
3501 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
3504 while (base_n > common_n) {
3505 if (base_n - 1 == common_n && flow_n > common_n) {
3506 /* If there is only one more LSE in base than there are common
3507 * between base and flow; and flow has at least one more LSE than
3508 * is common then the topmost LSE of base may be updated using
3510 struct ovs_key_mpls mpls_key;
3512 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
3513 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3514 &mpls_key, sizeof mpls_key);
3515 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
3518 /* Otherwise, if there more LSEs in base than are common between
3519 * base and flow then pop the topmost one. */
3523 /* If all the LSEs are to be popped and this is not the outermost
3524 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
3525 * POP_MPLS action instead of flow->dl_type.
3527 * This is because the POP_MPLS action requires its ethertype
3528 * argument to be an MPLS ethernet type but in this case
3529 * flow->dl_type will be a non-MPLS ethernet type.
3531 * When the final POP_MPLS action occurs it use flow->dl_type and
3532 * the and the resulting packet will have the desired dl_type. */
3533 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
3534 dl_type = htons(ETH_TYPE_MPLS);
3536 dl_type = flow->dl_type;
3538 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
3539 popped = flow_pop_mpls(base, base_n, flow->dl_type, wc);
3545 /* If, after the above popping and setting, there are more LSEs in flow
3546 * than base then some LSEs need to be pushed. */
3547 while (base_n < flow_n) {
3548 struct ovs_action_push_mpls *mpls;
3550 mpls = nl_msg_put_unspec_zero(odp_actions,
3551 OVS_ACTION_ATTR_PUSH_MPLS,
3553 mpls->mpls_ethertype = flow->dl_type;
3554 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
3555 flow_push_mpls(base, base_n, mpls->mpls_ethertype, wc);
3556 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
3562 commit_set_ipv4_action(const struct flow *flow, struct flow *base,
3563 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3565 struct ovs_key_ipv4 ipv4_key;
3567 if (base->nw_src == flow->nw_src &&
3568 base->nw_dst == flow->nw_dst &&
3569 base->nw_tos == flow->nw_tos &&
3570 base->nw_ttl == flow->nw_ttl &&
3571 base->nw_frag == flow->nw_frag) {
3575 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3576 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3577 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3578 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3579 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3580 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3582 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3583 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3584 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3585 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3586 ipv4_key.ipv4_proto = base->nw_proto;
3587 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
3589 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3590 &ipv4_key, sizeof(ipv4_key));
3594 commit_set_ipv6_action(const struct flow *flow, struct flow *base,
3595 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3597 struct ovs_key_ipv6 ipv6_key;
3599 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3600 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3601 base->ipv6_label == flow->ipv6_label &&
3602 base->nw_tos == flow->nw_tos &&
3603 base->nw_ttl == flow->nw_ttl &&
3604 base->nw_frag == flow->nw_frag) {
3608 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3609 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3610 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3611 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3612 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3613 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3614 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3616 base->ipv6_src = flow->ipv6_src;
3617 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3618 base->ipv6_dst = flow->ipv6_dst;
3619 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3621 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3622 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3623 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3624 ipv6_key.ipv6_proto = base->nw_proto;
3625 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3627 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3628 &ipv6_key, sizeof(ipv6_key));
3631 static enum slow_path_reason
3632 commit_set_arp_action(const struct flow *flow, struct flow *base,
3633 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3635 struct ovs_key_arp arp_key;
3637 if (base->nw_src == flow->nw_src &&
3638 base->nw_dst == flow->nw_dst &&
3639 base->nw_proto == flow->nw_proto &&
3640 eth_addr_equals(base->arp_sha, flow->arp_sha) &&
3641 eth_addr_equals(base->arp_tha, flow->arp_tha)) {
3645 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3646 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3647 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3648 memset(&wc->masks.arp_sha, 0xff, sizeof wc->masks.arp_sha);
3649 memset(&wc->masks.arp_tha, 0xff, sizeof wc->masks.arp_tha);
3651 base->nw_src = flow->nw_src;
3652 base->nw_dst = flow->nw_dst;
3653 base->nw_proto = flow->nw_proto;
3654 memcpy(base->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3655 memcpy(base->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3657 arp_key.arp_sip = base->nw_src;
3658 arp_key.arp_tip = base->nw_dst;
3659 arp_key.arp_op = htons(base->nw_proto);
3660 memcpy(arp_key.arp_sha, flow->arp_sha, ETH_ADDR_LEN);
3661 memcpy(arp_key.arp_tha, flow->arp_tha, ETH_ADDR_LEN);
3663 commit_set_action(odp_actions, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
3668 static enum slow_path_reason
3669 commit_set_nw_action(const struct flow *flow, struct flow *base,
3670 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3672 /* Check if 'flow' really has an L3 header. */
3673 if (!flow->nw_proto) {
3677 switch (ntohs(base->dl_type)) {
3679 commit_set_ipv4_action(flow, base, odp_actions, wc);
3683 commit_set_ipv6_action(flow, base, odp_actions, wc);
3687 return commit_set_arp_action(flow, base, odp_actions, wc);
3694 commit_set_port_action(const struct flow *flow, struct flow *base,
3695 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3697 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
3701 if (base->tp_src == flow->tp_src &&
3702 base->tp_dst == flow->tp_dst) {
3706 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3707 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3709 if (flow->nw_proto == IPPROTO_TCP) {
3710 struct ovs_key_tcp port_key;
3712 port_key.tcp_src = base->tp_src = flow->tp_src;
3713 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3715 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3716 &port_key, sizeof(port_key));
3718 } else if (flow->nw_proto == IPPROTO_UDP) {
3719 struct ovs_key_udp port_key;
3721 port_key.udp_src = base->tp_src = flow->tp_src;
3722 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3724 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3725 &port_key, sizeof(port_key));
3726 } else if (flow->nw_proto == IPPROTO_SCTP) {
3727 struct ovs_key_sctp port_key;
3729 port_key.sctp_src = base->tp_src = flow->tp_src;
3730 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3732 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3733 &port_key, sizeof(port_key));
3738 commit_set_priority_action(const struct flow *flow, struct flow *base,
3739 struct ofpbuf *odp_actions,
3740 struct flow_wildcards *wc)
3742 if (base->skb_priority == flow->skb_priority) {
3746 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
3747 base->skb_priority = flow->skb_priority;
3749 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
3750 &base->skb_priority, sizeof(base->skb_priority));
3754 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
3755 struct ofpbuf *odp_actions,
3756 struct flow_wildcards *wc)
3758 if (base->pkt_mark == flow->pkt_mark) {
3762 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3763 base->pkt_mark = flow->pkt_mark;
3765 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
3768 /* If any of the flow key data that ODP actions can modify are different in
3769 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
3770 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3771 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
3772 * in addition to this function if needed. Sets fields in 'wc' that are
3773 * used as part of the action.
3775 * Returns a reason to force processing the flow's packets into the userspace
3776 * slow path, if there is one, otherwise 0. */
3777 enum slow_path_reason
3778 commit_odp_actions(const struct flow *flow, struct flow *base,
3779 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3781 enum slow_path_reason slow;
3783 commit_set_ether_addr_action(flow, base, odp_actions, wc);
3784 slow = commit_set_nw_action(flow, base, odp_actions, wc);
3785 commit_set_port_action(flow, base, odp_actions, wc);
3786 commit_mpls_action(flow, base, odp_actions, wc);
3787 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
3788 commit_set_priority_action(flow, base, odp_actions, wc);
3789 commit_set_pkt_mark_action(flow, base, odp_actions, wc);