2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 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>
28 #include "byte-order.h"
31 #include "dynamic-string.h"
38 #include "tun-metadata.h"
39 #include "unaligned.h"
42 #include "openvswitch/vlog.h"
44 VLOG_DEFINE_THIS_MODULE(odp_util);
46 /* The interface between userspace and kernel uses an "OVS_*" prefix.
47 * Since this is fairly non-specific for the OVS userspace components,
48 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
49 * interactions with the datapath.
52 /* The set of characters that may separate one action or one key attribute
54 static const char *delimiters = ", \t\r\n";
55 static const char *delimiters_end = ", \t\r\n)";
59 const struct attr_len_tbl *next;
62 #define ATTR_LEN_INVALID -1
63 #define ATTR_LEN_VARIABLE -2
64 #define ATTR_LEN_NESTED -3
66 static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
67 struct ofpbuf *, struct ofpbuf *);
68 static void format_odp_key_attr(const struct nlattr *a,
69 const struct nlattr *ma,
70 const struct hmap *portno_names, struct ds *ds,
74 struct geneve_opt d[63];
78 static int scan_geneve(const char *s, struct geneve_scan *key,
79 struct geneve_scan *mask);
80 static void format_geneve_opts(const struct geneve_opt *opt,
81 const struct geneve_opt *mask, int opts_len,
82 struct ds *, bool verbose);
84 static struct nlattr *generate_all_wildcard_mask(const struct attr_len_tbl tbl[],
85 int max, struct ofpbuf *,
86 const struct nlattr *key);
87 static void format_u128(struct ds *ds, const ovs_u128 *value,
88 const ovs_u128 *mask, bool verbose);
89 static int scan_u128(const char *s, ovs_u128 *value, ovs_u128 *mask);
91 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
94 * - For an action whose argument has a fixed length, returned that
95 * nonnegative length in bytes.
97 * - For an action with a variable-length argument, returns ATTR_LEN_VARIABLE.
99 * - For an invalid 'type', returns ATTR_LEN_INVALID. */
101 odp_action_len(uint16_t type)
103 if (type > OVS_ACTION_ATTR_MAX) {
107 switch ((enum ovs_action_attr) type) {
108 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
109 case OVS_ACTION_ATTR_TUNNEL_PUSH: return ATTR_LEN_VARIABLE;
110 case OVS_ACTION_ATTR_TUNNEL_POP: return sizeof(uint32_t);
111 case OVS_ACTION_ATTR_USERSPACE: return ATTR_LEN_VARIABLE;
112 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
113 case OVS_ACTION_ATTR_POP_VLAN: return 0;
114 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
115 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
116 case OVS_ACTION_ATTR_RECIRC: return sizeof(uint32_t);
117 case OVS_ACTION_ATTR_HASH: return sizeof(struct ovs_action_hash);
118 case OVS_ACTION_ATTR_SET: return ATTR_LEN_VARIABLE;
119 case OVS_ACTION_ATTR_SET_MASKED: return ATTR_LEN_VARIABLE;
120 case OVS_ACTION_ATTR_SAMPLE: return ATTR_LEN_VARIABLE;
121 case OVS_ACTION_ATTR_CT: return ATTR_LEN_VARIABLE;
123 case OVS_ACTION_ATTR_UNSPEC:
124 case __OVS_ACTION_ATTR_MAX:
125 return ATTR_LEN_INVALID;
128 return ATTR_LEN_INVALID;
131 /* Returns a string form of 'attr'. The return value is either a statically
132 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
133 * should be at least OVS_KEY_ATTR_BUFSIZE. */
134 enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
136 ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
139 case OVS_KEY_ATTR_UNSPEC: return "unspec";
140 case OVS_KEY_ATTR_ENCAP: return "encap";
141 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
142 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
143 case OVS_KEY_ATTR_CT_STATE: return "ct_state";
144 case OVS_KEY_ATTR_CT_ZONE: return "ct_zone";
145 case OVS_KEY_ATTR_CT_MARK: return "ct_mark";
146 case OVS_KEY_ATTR_CT_LABELS: return "ct_label";
147 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
148 case OVS_KEY_ATTR_IN_PORT: return "in_port";
149 case OVS_KEY_ATTR_ETHERNET: return "eth";
150 case OVS_KEY_ATTR_VLAN: return "vlan";
151 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
152 case OVS_KEY_ATTR_IPV4: return "ipv4";
153 case OVS_KEY_ATTR_IPV6: return "ipv6";
154 case OVS_KEY_ATTR_TCP: return "tcp";
155 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
156 case OVS_KEY_ATTR_UDP: return "udp";
157 case OVS_KEY_ATTR_SCTP: return "sctp";
158 case OVS_KEY_ATTR_ICMP: return "icmp";
159 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
160 case OVS_KEY_ATTR_ARP: return "arp";
161 case OVS_KEY_ATTR_ND: return "nd";
162 case OVS_KEY_ATTR_MPLS: return "mpls";
163 case OVS_KEY_ATTR_DP_HASH: return "dp_hash";
164 case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id";
166 case __OVS_KEY_ATTR_MAX:
168 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
174 format_generic_odp_action(struct ds *ds, const struct nlattr *a)
176 size_t len = nl_attr_get_size(a);
178 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
180 const uint8_t *unspec;
183 unspec = nl_attr_get(a);
184 for (i = 0; i < len; i++) {
185 ds_put_char(ds, i ? ' ': '(');
186 ds_put_format(ds, "%02x", unspec[i]);
188 ds_put_char(ds, ')');
193 format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
195 static const struct nl_policy ovs_sample_policy[] = {
196 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
197 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
199 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
201 const struct nlattr *nla_acts;
204 ds_put_cstr(ds, "sample");
206 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
207 ds_put_cstr(ds, "(error)");
211 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
214 ds_put_format(ds, "(sample=%.1f%%,", percentage);
216 ds_put_cstr(ds, "actions(");
217 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
218 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
219 format_odp_actions(ds, nla_acts, len);
220 ds_put_format(ds, "))");
224 slow_path_reason_to_string(uint32_t reason)
226 switch ((enum slow_path_reason) reason) {
227 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
236 slow_path_reason_to_explanation(enum slow_path_reason reason)
239 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
248 parse_odp_flags(const char *s, const char *(*bit_to_string)(uint32_t),
249 uint32_t *res_flags, uint32_t allowed, uint32_t *res_mask)
251 return parse_flags(s, bit_to_string, ')', NULL, NULL,
252 res_flags, allowed, res_mask);
256 format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
258 static const struct nl_policy ovs_userspace_policy[] = {
259 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
260 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
262 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
264 [OVS_USERSPACE_ATTR_ACTIONS] = { .type = NL_A_UNSPEC,
267 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
268 const struct nlattr *userdata_attr;
269 const struct nlattr *tunnel_out_port_attr;
271 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
272 ds_put_cstr(ds, "userspace(error)");
276 ds_put_format(ds, "userspace(pid=%"PRIu32,
277 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
279 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
282 const uint8_t *userdata = nl_attr_get(userdata_attr);
283 size_t userdata_len = nl_attr_get_size(userdata_attr);
284 bool userdata_unspec = true;
285 union user_action_cookie cookie;
287 if (userdata_len >= sizeof cookie.type
288 && userdata_len <= sizeof cookie) {
290 memset(&cookie, 0, sizeof cookie);
291 memcpy(&cookie, userdata, userdata_len);
293 userdata_unspec = false;
295 if (userdata_len == sizeof cookie.sflow
296 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
297 ds_put_format(ds, ",sFlow("
298 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
299 vlan_tci_to_vid(cookie.sflow.vlan_tci),
300 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
301 cookie.sflow.output);
302 } else if (userdata_len == sizeof cookie.slow_path
303 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
304 ds_put_cstr(ds, ",slow_path(");
305 format_flags(ds, slow_path_reason_to_string,
306 cookie.slow_path.reason, ',');
307 ds_put_format(ds, ")");
308 } else if (userdata_len == sizeof cookie.flow_sample
309 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
310 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
311 ",collector_set_id=%"PRIu32
312 ",obs_domain_id=%"PRIu32
313 ",obs_point_id=%"PRIu32")",
314 cookie.flow_sample.probability,
315 cookie.flow_sample.collector_set_id,
316 cookie.flow_sample.obs_domain_id,
317 cookie.flow_sample.obs_point_id);
318 } else if (userdata_len >= sizeof cookie.ipfix
319 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
320 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
321 cookie.ipfix.output_odp_port);
323 userdata_unspec = true;
327 if (userdata_unspec) {
329 ds_put_format(ds, ",userdata(");
330 for (i = 0; i < userdata_len; i++) {
331 ds_put_format(ds, "%02x", userdata[i]);
333 ds_put_char(ds, ')');
337 if (a[OVS_USERSPACE_ATTR_ACTIONS]) {
338 ds_put_cstr(ds, ",actions");
341 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
342 if (tunnel_out_port_attr) {
343 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
344 nl_attr_get_u32(tunnel_out_port_attr));
347 ds_put_char(ds, ')');
351 format_vlan_tci(struct ds *ds, ovs_be16 tci, ovs_be16 mask, bool verbose)
353 if (verbose || vlan_tci_to_vid(tci) || vlan_tci_to_vid(mask)) {
354 ds_put_format(ds, "vid=%"PRIu16, vlan_tci_to_vid(tci));
355 if (vlan_tci_to_vid(mask) != VLAN_VID_MASK) { /* Partially masked. */
356 ds_put_format(ds, "/0x%"PRIx16, vlan_tci_to_vid(mask));
358 ds_put_char(ds, ',');
360 if (verbose || vlan_tci_to_pcp(tci) || vlan_tci_to_pcp(mask)) {
361 ds_put_format(ds, "pcp=%d", vlan_tci_to_pcp(tci));
362 if (vlan_tci_to_pcp(mask) != (VLAN_PCP_MASK >> VLAN_PCP_SHIFT)) {
363 ds_put_format(ds, "/0x%x", vlan_tci_to_pcp(mask));
365 ds_put_char(ds, ',');
367 if (!(tci & htons(VLAN_CFI))) {
368 ds_put_cstr(ds, "cfi=0");
369 ds_put_char(ds, ',');
375 format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
377 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
378 mpls_lse_to_label(mpls_lse),
379 mpls_lse_to_tc(mpls_lse),
380 mpls_lse_to_ttl(mpls_lse),
381 mpls_lse_to_bos(mpls_lse));
385 format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
386 const struct ovs_key_mpls *mpls_mask, int n)
389 ovs_be32 key = mpls_key->mpls_lse;
391 if (mpls_mask == NULL) {
392 format_mpls_lse(ds, key);
394 ovs_be32 mask = mpls_mask->mpls_lse;
396 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
397 mpls_lse_to_label(key), mpls_lse_to_label(mask),
398 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
399 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
400 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
405 for (i = 0; i < n; i++) {
406 ds_put_format(ds, "lse%d=%#"PRIx32,
407 i, ntohl(mpls_key[i].mpls_lse));
409 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
411 ds_put_char(ds, ',');
418 format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
420 ds_put_format(ds, "recirc(%#"PRIx32")", recirc_id);
424 format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
426 ds_put_format(ds, "hash(");
428 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
429 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
431 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
434 ds_put_format(ds, ")");
438 format_udp_tnl_push_header(struct ds *ds, const struct ip_header *ip)
440 const struct udp_header *udp;
442 udp = (const struct udp_header *) (ip + 1);
443 ds_put_format(ds, "udp(src=%"PRIu16",dst=%"PRIu16",csum=0x%"PRIx16"),",
444 ntohs(udp->udp_src), ntohs(udp->udp_dst),
445 ntohs(udp->udp_csum));
451 format_odp_tnl_push_header(struct ds *ds, struct ovs_action_push_tnl *data)
453 const struct eth_header *eth;
454 const struct ip_header *ip;
457 eth = (const struct eth_header *)data->header;
460 ip = (const struct ip_header *)l3;
463 ds_put_format(ds, "header(size=%"PRIu8",type=%"PRIu8",eth(dst=",
464 data->header_len, data->tnl_type);
465 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_dst));
466 ds_put_format(ds, ",src=");
467 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_src));
468 ds_put_format(ds, ",dl_type=0x%04"PRIx16"),", ntohs(eth->eth_type));
471 ds_put_format(ds, "ipv4(src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
472 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=0x%"PRIx16"),",
473 IP_ARGS(get_16aligned_be32(&ip->ip_src)),
474 IP_ARGS(get_16aligned_be32(&ip->ip_dst)),
475 ip->ip_proto, ip->ip_tos,
479 if (data->tnl_type == OVS_VPORT_TYPE_VXLAN) {
480 const struct vxlanhdr *vxh;
482 vxh = format_udp_tnl_push_header(ds, ip);
484 ds_put_format(ds, "vxlan(flags=0x%"PRIx32",vni=0x%"PRIx32")",
485 ntohl(get_16aligned_be32(&vxh->vx_flags)),
486 ntohl(get_16aligned_be32(&vxh->vx_vni)) >> 8);
487 } else if (data->tnl_type == OVS_VPORT_TYPE_GENEVE) {
488 const struct genevehdr *gnh;
490 gnh = format_udp_tnl_push_header(ds, ip);
492 ds_put_format(ds, "geneve(%s%svni=0x%"PRIx32,
493 gnh->oam ? "oam," : "",
494 gnh->critical ? "crit," : "",
495 ntohl(get_16aligned_be32(&gnh->vni)) >> 8);
498 ds_put_cstr(ds, ",options(");
499 format_geneve_opts(gnh->options, NULL, gnh->opt_len * 4,
501 ds_put_char(ds, ')');
504 ds_put_char(ds, ')');
505 } else if (data->tnl_type == OVS_VPORT_TYPE_GRE) {
506 const struct gre_base_hdr *greh;
507 ovs_16aligned_be32 *options;
510 l4 = ((uint8_t *)l3 + sizeof(struct ip_header));
511 greh = (const struct gre_base_hdr *) l4;
513 ds_put_format(ds, "gre((flags=0x%"PRIx16",proto=0x%"PRIx16")",
514 ntohs(greh->flags), ntohs(greh->protocol));
515 options = (ovs_16aligned_be32 *)(greh + 1);
516 if (greh->flags & htons(GRE_CSUM)) {
517 ds_put_format(ds, ",csum=0x%"PRIx16, ntohs(*((ovs_be16 *)options)));
520 if (greh->flags & htons(GRE_KEY)) {
521 ds_put_format(ds, ",key=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
524 if (greh->flags & htons(GRE_SEQ)) {
525 ds_put_format(ds, ",seq=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
528 ds_put_format(ds, ")");
530 ds_put_format(ds, ")");
534 format_odp_tnl_push_action(struct ds *ds, const struct nlattr *attr)
536 struct ovs_action_push_tnl *data;
538 data = (struct ovs_action_push_tnl *) nl_attr_get(attr);
540 ds_put_format(ds, "tnl_push(tnl_port(%"PRIu32"),", data->tnl_port);
541 format_odp_tnl_push_header(ds, data);
542 ds_put_format(ds, ",out_port(%"PRIu32"))", data->out_port);
545 static const struct nl_policy ovs_conntrack_policy[] = {
546 [OVS_CT_ATTR_COMMIT] = { .type = NL_A_FLAG, .optional = true, },
547 [OVS_CT_ATTR_ZONE] = { .type = NL_A_U16, .optional = true, },
548 [OVS_CT_ATTR_MARK] = { .type = NL_A_UNSPEC, .optional = true,
549 .min_len = sizeof(uint32_t) * 2 },
550 [OVS_CT_ATTR_LABELS] = { .type = NL_A_UNSPEC, .optional = true,
551 .min_len = sizeof(struct ovs_key_ct_labels) * 2 },
552 [OVS_CT_ATTR_HELPER] = { .type = NL_A_STRING, .optional = true,
553 .min_len = 1, .max_len = 16 },
557 format_odp_conntrack_action(struct ds *ds, const struct nlattr *attr)
559 struct nlattr *a[ARRAY_SIZE(ovs_conntrack_policy)];
560 const ovs_u128 *label;
561 const uint32_t *mark;
566 if (!nl_parse_nested(attr, ovs_conntrack_policy, a, ARRAY_SIZE(a))) {
567 ds_put_cstr(ds, "ct(error)");
571 commit = a[OVS_CT_ATTR_COMMIT] ? true : false;
572 zone = a[OVS_CT_ATTR_ZONE] ? nl_attr_get_u16(a[OVS_CT_ATTR_ZONE]) : 0;
573 mark = a[OVS_CT_ATTR_MARK] ? nl_attr_get(a[OVS_CT_ATTR_MARK]) : NULL;
574 label = a[OVS_CT_ATTR_LABELS] ? nl_attr_get(a[OVS_CT_ATTR_LABELS]): NULL;
575 helper = a[OVS_CT_ATTR_HELPER] ? nl_attr_get(a[OVS_CT_ATTR_HELPER]) : NULL;
577 ds_put_format(ds, "ct");
578 if (commit || zone || mark || label || helper) {
579 ds_put_cstr(ds, "(");
581 ds_put_format(ds, "commit,");
584 ds_put_format(ds, "zone=%"PRIu16",", zone);
587 ds_put_format(ds, "mark=%#"PRIx32"/%#"PRIx32",", *mark,
591 ds_put_format(ds, "label=");
592 format_u128(ds, label, label + 1, true);
595 ds_put_format(ds, "helper=%s,", helper);
598 ds_put_cstr(ds, ")");
603 format_odp_action(struct ds *ds, const struct nlattr *a)
606 enum ovs_action_attr type = nl_attr_type(a);
607 const struct ovs_action_push_vlan *vlan;
610 expected_len = odp_action_len(nl_attr_type(a));
611 if (expected_len != ATTR_LEN_VARIABLE &&
612 nl_attr_get_size(a) != expected_len) {
613 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
614 nl_attr_get_size(a), expected_len);
615 format_generic_odp_action(ds, a);
620 case OVS_ACTION_ATTR_OUTPUT:
621 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
623 case OVS_ACTION_ATTR_TUNNEL_POP:
624 ds_put_format(ds, "tnl_pop(%"PRIu32")", nl_attr_get_u32(a));
626 case OVS_ACTION_ATTR_TUNNEL_PUSH:
627 format_odp_tnl_push_action(ds, a);
629 case OVS_ACTION_ATTR_USERSPACE:
630 format_odp_userspace_action(ds, a);
632 case OVS_ACTION_ATTR_RECIRC:
633 format_odp_recirc_action(ds, nl_attr_get_u32(a));
635 case OVS_ACTION_ATTR_HASH:
636 format_odp_hash_action(ds, nl_attr_get(a));
638 case OVS_ACTION_ATTR_SET_MASKED:
640 size = nl_attr_get_size(a) / 2;
641 ds_put_cstr(ds, "set(");
643 /* Masked set action not supported for tunnel key, which is bigger. */
644 if (size <= sizeof(struct ovs_key_ipv6)) {
645 struct nlattr attr[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
646 sizeof(struct nlattr))];
647 struct nlattr mask[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
648 sizeof(struct nlattr))];
650 mask->nla_type = attr->nla_type = nl_attr_type(a);
651 mask->nla_len = attr->nla_len = NLA_HDRLEN + size;
652 memcpy(attr + 1, (char *)(a + 1), size);
653 memcpy(mask + 1, (char *)(a + 1) + size, size);
654 format_odp_key_attr(attr, mask, NULL, ds, false);
656 format_odp_key_attr(a, NULL, NULL, ds, false);
658 ds_put_cstr(ds, ")");
660 case OVS_ACTION_ATTR_SET:
661 ds_put_cstr(ds, "set(");
662 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
663 ds_put_cstr(ds, ")");
665 case OVS_ACTION_ATTR_PUSH_VLAN:
666 vlan = nl_attr_get(a);
667 ds_put_cstr(ds, "push_vlan(");
668 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
669 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
671 format_vlan_tci(ds, vlan->vlan_tci, OVS_BE16_MAX, false);
672 ds_put_char(ds, ')');
674 case OVS_ACTION_ATTR_POP_VLAN:
675 ds_put_cstr(ds, "pop_vlan");
677 case OVS_ACTION_ATTR_PUSH_MPLS: {
678 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
679 ds_put_cstr(ds, "push_mpls(");
680 format_mpls_lse(ds, mpls->mpls_lse);
681 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
684 case OVS_ACTION_ATTR_POP_MPLS: {
685 ovs_be16 ethertype = nl_attr_get_be16(a);
686 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
689 case OVS_ACTION_ATTR_SAMPLE:
690 format_odp_sample_action(ds, a);
692 case OVS_ACTION_ATTR_CT:
693 format_odp_conntrack_action(ds, a);
695 case OVS_ACTION_ATTR_UNSPEC:
696 case __OVS_ACTION_ATTR_MAX:
698 format_generic_odp_action(ds, a);
704 format_odp_actions(struct ds *ds, const struct nlattr *actions,
708 const struct nlattr *a;
711 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
713 ds_put_char(ds, ',');
715 format_odp_action(ds, a);
720 if (left == actions_len) {
721 ds_put_cstr(ds, "<empty>");
723 ds_put_format(ds, ",***%u leftover bytes*** (", left);
724 for (i = 0; i < left; i++) {
725 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
727 ds_put_char(ds, ')');
730 ds_put_cstr(ds, "drop");
734 /* Separate out parse_odp_userspace_action() function. */
736 parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
739 union user_action_cookie cookie;
741 odp_port_t tunnel_out_port;
743 void *user_data = NULL;
744 size_t user_data_size = 0;
745 bool include_actions = false;
747 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
753 uint32_t probability;
754 uint32_t collector_set_id;
755 uint32_t obs_domain_id;
756 uint32_t obs_point_id;
759 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
760 "pcp=%i,output=%"SCNi32")%n",
761 &vid, &pcp, &output, &n1)) {
765 tci = vid | (pcp << VLAN_PCP_SHIFT);
770 cookie.type = USER_ACTION_COOKIE_SFLOW;
771 cookie.sflow.vlan_tci = htons(tci);
772 cookie.sflow.output = output;
774 user_data_size = sizeof cookie.sflow;
775 } else if (ovs_scan(&s[n], ",slow_path(%n",
780 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
781 cookie.slow_path.unused = 0;
782 cookie.slow_path.reason = 0;
784 res = parse_odp_flags(&s[n], slow_path_reason_to_string,
785 &cookie.slow_path.reason,
786 SLOW_PATH_REASON_MASK, NULL);
787 if (res < 0 || s[n + res] != ')') {
793 user_data_size = sizeof cookie.slow_path;
794 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
795 "collector_set_id=%"SCNi32","
796 "obs_domain_id=%"SCNi32","
797 "obs_point_id=%"SCNi32")%n",
798 &probability, &collector_set_id,
799 &obs_domain_id, &obs_point_id, &n1)) {
802 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
803 cookie.flow_sample.probability = probability;
804 cookie.flow_sample.collector_set_id = collector_set_id;
805 cookie.flow_sample.obs_domain_id = obs_domain_id;
806 cookie.flow_sample.obs_point_id = obs_point_id;
808 user_data_size = sizeof cookie.flow_sample;
809 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
812 cookie.type = USER_ACTION_COOKIE_IPFIX;
813 cookie.ipfix.output_odp_port = u32_to_odp(output);
815 user_data_size = sizeof cookie.ipfix;
816 } else if (ovs_scan(&s[n], ",userdata(%n",
821 ofpbuf_init(&buf, 16);
822 end = ofpbuf_put_hex(&buf, &s[n], NULL);
826 user_data = buf.data;
827 user_data_size = buf.size;
834 if (ovs_scan(&s[n], ",actions%n", &n1)) {
836 include_actions = true;
842 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
843 &tunnel_out_port, &n1)) {
844 odp_put_userspace_action(pid, user_data, user_data_size,
845 tunnel_out_port, include_actions, actions);
847 } else if (s[n] == ')') {
848 odp_put_userspace_action(pid, user_data, user_data_size,
849 ODPP_NONE, include_actions, actions);
858 ovs_parse_tnl_push(const char *s, struct ovs_action_push_tnl *data)
860 struct eth_header *eth;
861 struct ip_header *ip;
862 struct udp_header *udp;
863 struct gre_base_hdr *greh;
864 uint16_t gre_proto, gre_flags, dl_type, udp_src, udp_dst, csum;
866 uint32_t tnl_type = 0, header_len = 0;
870 if (!ovs_scan_len(s, &n, "tnl_push(tnl_port(%"SCNi32"),", &data->tnl_port)) {
873 eth = (struct eth_header *) data->header;
874 l3 = (data->header + sizeof *eth);
875 l4 = ((uint8_t *) l3 + sizeof (struct ip_header));
876 ip = (struct ip_header *) l3;
877 if (!ovs_scan_len(s, &n, "header(size=%"SCNi32",type=%"SCNi32","
878 "eth(dst="ETH_ADDR_SCAN_FMT",",
881 ETH_ADDR_SCAN_ARGS(eth->eth_dst))) {
885 if (!ovs_scan_len(s, &n, "src="ETH_ADDR_SCAN_FMT",",
886 ETH_ADDR_SCAN_ARGS(eth->eth_src))) {
889 if (!ovs_scan_len(s, &n, "dl_type=0x%"SCNx16"),", &dl_type)) {
892 eth->eth_type = htons(dl_type);
895 if (!ovs_scan_len(s, &n, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT",proto=%"SCNi8
896 ",tos=%"SCNi8",ttl=%"SCNi8",frag=0x%"SCNx16"),",
899 &ip->ip_proto, &ip->ip_tos,
900 &ip->ip_ttl, &ip->ip_frag_off)) {
903 put_16aligned_be32(&ip->ip_src, sip);
904 put_16aligned_be32(&ip->ip_dst, dip);
907 udp = (struct udp_header *) l4;
908 greh = (struct gre_base_hdr *) l4;
909 if (ovs_scan_len(s, &n, "udp(src=%"SCNi16",dst=%"SCNi16",csum=0x%"SCNx16"),",
910 &udp_src, &udp_dst, &csum)) {
911 uint32_t vx_flags, vni;
913 udp->udp_src = htons(udp_src);
914 udp->udp_dst = htons(udp_dst);
916 udp->udp_csum = htons(csum);
918 if (ovs_scan_len(s, &n, "vxlan(flags=0x%"SCNx32",vni=0x%"SCNx32"))",
920 struct vxlanhdr *vxh = (struct vxlanhdr *) (udp + 1);
922 put_16aligned_be32(&vxh->vx_flags, htonl(vx_flags));
923 put_16aligned_be32(&vxh->vx_vni, htonl(vni << 8));
924 tnl_type = OVS_VPORT_TYPE_VXLAN;
925 header_len = sizeof *eth + sizeof *ip +
926 sizeof *udp + sizeof *vxh;
927 } else if (ovs_scan_len(s, &n, "geneve(")) {
928 struct genevehdr *gnh = (struct genevehdr *) (udp + 1);
930 memset(gnh, 0, sizeof *gnh);
931 header_len = sizeof *eth + sizeof *ip +
932 sizeof *udp + sizeof *gnh;
934 if (ovs_scan_len(s, &n, "oam,")) {
937 if (ovs_scan_len(s, &n, "crit,")) {
940 if (!ovs_scan_len(s, &n, "vni=%"SCNi32, &vni)) {
943 if (ovs_scan_len(s, &n, ",options(")) {
944 struct geneve_scan options;
947 memset(&options, 0, sizeof options);
948 len = scan_geneve(s + n, &options, NULL);
953 memcpy(gnh->options, options.d, options.len);
954 gnh->opt_len = options.len / 4;
955 header_len += options.len;
959 if (!ovs_scan_len(s, &n, "))")) {
963 gnh->proto_type = htons(ETH_TYPE_TEB);
964 put_16aligned_be32(&gnh->vni, htonl(vni << 8));
965 tnl_type = OVS_VPORT_TYPE_GENEVE;
969 } else if (ovs_scan_len(s, &n, "gre((flags=0x%"SCNx16",proto=0x%"SCNx16")",
970 &gre_flags, &gre_proto)){
972 tnl_type = OVS_VPORT_TYPE_GRE;
973 greh->flags = htons(gre_flags);
974 greh->protocol = htons(gre_proto);
975 ovs_16aligned_be32 *options = (ovs_16aligned_be32 *) (greh + 1);
977 if (greh->flags & htons(GRE_CSUM)) {
978 if (!ovs_scan_len(s, &n, ",csum=0x%"SCNx16, &csum)) {
982 memset(options, 0, sizeof *options);
983 *((ovs_be16 *)options) = htons(csum);
986 if (greh->flags & htons(GRE_KEY)) {
989 if (!ovs_scan_len(s, &n, ",key=0x%"SCNx32, &key)) {
993 put_16aligned_be32(options, htonl(key));
996 if (greh->flags & htons(GRE_SEQ)) {
999 if (!ovs_scan_len(s, &n, ",seq=0x%"SCNx32, &seq)) {
1002 put_16aligned_be32(options, htonl(seq));
1006 if (!ovs_scan_len(s, &n, "))")) {
1010 header_len = sizeof *eth + sizeof *ip +
1011 ((uint8_t *) options - (uint8_t *) greh);
1016 /* check tunnel meta data. */
1017 if (data->tnl_type != tnl_type) {
1020 if (data->header_len != header_len) {
1025 if (!ovs_scan_len(s, &n, ",out_port(%"SCNi32"))", &data->out_port)) {
1033 parse_conntrack_action(const char *s_, struct ofpbuf *actions)
1037 if (ovs_scan(s, "ct")) {
1038 const char *helper = NULL;
1039 size_t helper_len = 0;
1040 bool commit = false;
1045 } ct_mark = { 0, 0 };
1053 memset(&ct_label, 0, sizeof(ct_label));
1056 if (ovs_scan(s, "(")) {
1058 end = strchr(s, ')');
1066 s += strspn(s, delimiters);
1067 if (ovs_scan(s, "commit%n", &n)) {
1072 if (ovs_scan(s, "zone=%"SCNu16"%n", &zone, &n)) {
1076 if (ovs_scan(s, "mark=%"SCNx32"%n", &ct_mark.value, &n)) {
1079 if (ovs_scan(s, "/%"SCNx32"%n", &ct_mark.mask, &n)) {
1082 ct_mark.mask = UINT32_MAX;
1086 if (ovs_scan(s, "label=%n", &n)) {
1090 retval = scan_u128(s, &ct_label.value, &ct_label.mask);
1097 if (ovs_scan(s, "helper=%n", &n)) {
1099 helper_len = strcspn(s, delimiters_end);
1100 if (!helper_len || helper_len > 15) {
1113 start = nl_msg_start_nested(actions, OVS_ACTION_ATTR_CT);
1115 nl_msg_put_flag(actions, OVS_CT_ATTR_COMMIT);
1118 nl_msg_put_u16(actions, OVS_CT_ATTR_ZONE, zone);
1121 nl_msg_put_unspec(actions, OVS_CT_ATTR_MARK, &ct_mark,
1124 if (!ovs_u128_is_zero(&ct_label.mask)) {
1125 nl_msg_put_unspec(actions, OVS_CT_ATTR_LABELS, &ct_label,
1129 nl_msg_put_string__(actions, OVS_CT_ATTR_HELPER, helper,
1132 nl_msg_end_nested(actions, start);
1139 parse_odp_action(const char *s, const struct simap *port_names,
1140 struct ofpbuf *actions)
1146 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
1147 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
1153 int len = strcspn(s, delimiters);
1154 struct simap_node *node;
1156 node = simap_find_len(port_names, s, len);
1158 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
1167 if (ovs_scan(s, "recirc(%"PRIu32")%n", &recirc_id, &n)) {
1168 nl_msg_put_u32(actions, OVS_ACTION_ATTR_RECIRC, recirc_id);
1173 if (!strncmp(s, "userspace(", 10)) {
1174 return parse_odp_userspace_action(s, actions);
1177 if (!strncmp(s, "set(", 4)) {
1180 struct nlattr mask[128 / sizeof(struct nlattr)];
1181 struct ofpbuf maskbuf;
1182 struct nlattr *nested, *key;
1185 /* 'mask' is big enough to hold any key. */
1186 ofpbuf_use_stack(&maskbuf, mask, sizeof mask);
1188 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
1189 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, &maskbuf);
1193 if (s[retval + 4] != ')') {
1197 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1200 size = nl_attr_get_size(mask);
1201 if (size == nl_attr_get_size(key)) {
1202 /* Change to masked set action if not fully masked. */
1203 if (!is_all_ones(mask + 1, size)) {
1204 key->nla_len += size;
1205 ofpbuf_put(actions, mask + 1, size);
1206 /* 'actions' may have been reallocated by ofpbuf_put(). */
1207 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1208 nested->nla_type = OVS_ACTION_ATTR_SET_MASKED;
1212 nl_msg_end_nested(actions, start_ofs);
1217 struct ovs_action_push_vlan push;
1218 int tpid = ETH_TYPE_VLAN;
1223 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
1224 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
1225 &vid, &pcp, &cfi, &n)
1226 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
1227 &tpid, &vid, &pcp, &n)
1228 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
1229 &tpid, &vid, &pcp, &cfi, &n)) {
1230 push.vlan_tpid = htons(tpid);
1231 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
1232 | (pcp << VLAN_PCP_SHIFT)
1233 | (cfi ? VLAN_CFI : 0));
1234 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
1235 &push, sizeof push);
1241 if (!strncmp(s, "pop_vlan", 8)) {
1242 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
1250 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
1251 && percentage >= 0. && percentage <= 100.0) {
1252 size_t sample_ofs, actions_ofs;
1255 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
1256 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
1257 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
1258 (probability <= 0 ? 0
1259 : probability >= UINT32_MAX ? UINT32_MAX
1262 actions_ofs = nl_msg_start_nested(actions,
1263 OVS_SAMPLE_ATTR_ACTIONS);
1267 n += strspn(s + n, delimiters);
1272 retval = parse_odp_action(s + n, port_names, actions);
1278 nl_msg_end_nested(actions, actions_ofs);
1279 nl_msg_end_nested(actions, sample_ofs);
1281 return s[n + 1] == ')' ? n + 2 : -EINVAL;
1289 if (ovs_scan(s, "tnl_pop(%"SCNi32")%n", &port, &n)) {
1290 nl_msg_put_u32(actions, OVS_ACTION_ATTR_TUNNEL_POP, port);
1298 retval = parse_conntrack_action(s, actions);
1305 struct ovs_action_push_tnl data;
1308 n = ovs_parse_tnl_push(s, &data);
1310 odp_put_tnl_push_action(actions, &data);
1319 /* Parses the string representation of datapath actions, in the format output
1320 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
1321 * value. On success, the ODP actions are appended to 'actions' as a series of
1322 * Netlink attributes. On failure, no data is appended to 'actions'. Either
1323 * way, 'actions''s data might be reallocated. */
1325 odp_actions_from_string(const char *s, const struct simap *port_names,
1326 struct ofpbuf *actions)
1330 if (!strcasecmp(s, "drop")) {
1334 old_size = actions->size;
1338 s += strspn(s, delimiters);
1343 retval = parse_odp_action(s, port_names, actions);
1344 if (retval < 0 || !strchr(delimiters, s[retval])) {
1345 actions->size = old_size;
1354 static const struct attr_len_tbl ovs_vxlan_ext_attr_lens[OVS_VXLAN_EXT_MAX + 1] = {
1355 [OVS_VXLAN_EXT_GBP] = { .len = 4 },
1358 static const struct attr_len_tbl ovs_tun_key_attr_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
1359 [OVS_TUNNEL_KEY_ATTR_ID] = { .len = 8 },
1360 [OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = { .len = 4 },
1361 [OVS_TUNNEL_KEY_ATTR_IPV4_DST] = { .len = 4 },
1362 [OVS_TUNNEL_KEY_ATTR_TOS] = { .len = 1 },
1363 [OVS_TUNNEL_KEY_ATTR_TTL] = { .len = 1 },
1364 [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = { .len = 0 },
1365 [OVS_TUNNEL_KEY_ATTR_CSUM] = { .len = 0 },
1366 [OVS_TUNNEL_KEY_ATTR_TP_SRC] = { .len = 2 },
1367 [OVS_TUNNEL_KEY_ATTR_TP_DST] = { .len = 2 },
1368 [OVS_TUNNEL_KEY_ATTR_OAM] = { .len = 0 },
1369 [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = { .len = ATTR_LEN_VARIABLE },
1370 [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS] = { .len = ATTR_LEN_NESTED,
1371 .next = ovs_vxlan_ext_attr_lens ,
1372 .next_max = OVS_VXLAN_EXT_MAX},
1375 static const struct attr_len_tbl ovs_flow_key_attr_lens[OVS_KEY_ATTR_MAX + 1] = {
1376 [OVS_KEY_ATTR_ENCAP] = { .len = ATTR_LEN_NESTED },
1377 [OVS_KEY_ATTR_PRIORITY] = { .len = 4 },
1378 [OVS_KEY_ATTR_SKB_MARK] = { .len = 4 },
1379 [OVS_KEY_ATTR_DP_HASH] = { .len = 4 },
1380 [OVS_KEY_ATTR_RECIRC_ID] = { .len = 4 },
1381 [OVS_KEY_ATTR_TUNNEL] = { .len = ATTR_LEN_NESTED,
1382 .next = ovs_tun_key_attr_lens,
1383 .next_max = OVS_TUNNEL_KEY_ATTR_MAX },
1384 [OVS_KEY_ATTR_IN_PORT] = { .len = 4 },
1385 [OVS_KEY_ATTR_ETHERNET] = { .len = sizeof(struct ovs_key_ethernet) },
1386 [OVS_KEY_ATTR_VLAN] = { .len = 2 },
1387 [OVS_KEY_ATTR_ETHERTYPE] = { .len = 2 },
1388 [OVS_KEY_ATTR_MPLS] = { .len = ATTR_LEN_VARIABLE },
1389 [OVS_KEY_ATTR_IPV4] = { .len = sizeof(struct ovs_key_ipv4) },
1390 [OVS_KEY_ATTR_IPV6] = { .len = sizeof(struct ovs_key_ipv6) },
1391 [OVS_KEY_ATTR_TCP] = { .len = sizeof(struct ovs_key_tcp) },
1392 [OVS_KEY_ATTR_TCP_FLAGS] = { .len = 2 },
1393 [OVS_KEY_ATTR_UDP] = { .len = sizeof(struct ovs_key_udp) },
1394 [OVS_KEY_ATTR_SCTP] = { .len = sizeof(struct ovs_key_sctp) },
1395 [OVS_KEY_ATTR_ICMP] = { .len = sizeof(struct ovs_key_icmp) },
1396 [OVS_KEY_ATTR_ICMPV6] = { .len = sizeof(struct ovs_key_icmpv6) },
1397 [OVS_KEY_ATTR_ARP] = { .len = sizeof(struct ovs_key_arp) },
1398 [OVS_KEY_ATTR_ND] = { .len = sizeof(struct ovs_key_nd) },
1399 [OVS_KEY_ATTR_CT_STATE] = { .len = 4 },
1400 [OVS_KEY_ATTR_CT_ZONE] = { .len = 2 },
1401 [OVS_KEY_ATTR_CT_MARK] = { .len = 4 },
1402 [OVS_KEY_ATTR_CT_LABELS] = { .len = sizeof(struct ovs_key_ct_labels) },
1405 /* Returns the correct length of the payload for a flow key attribute of the
1406 * specified 'type', ATTR_LEN_INVALID if 'type' is unknown, ATTR_LEN_VARIABLE
1407 * if the attribute's payload is variable length, or ATTR_LEN_NESTED if the
1408 * payload is a nested type. */
1410 odp_key_attr_len(const struct attr_len_tbl tbl[], int max_len, uint16_t type)
1412 if (type > max_len) {
1413 return ATTR_LEN_INVALID;
1416 return tbl[type].len;
1420 format_generic_odp_key(const struct nlattr *a, struct ds *ds)
1422 size_t len = nl_attr_get_size(a);
1424 const uint8_t *unspec;
1427 unspec = nl_attr_get(a);
1428 for (i = 0; i < len; i++) {
1430 ds_put_char(ds, ' ');
1432 ds_put_format(ds, "%02x", unspec[i]);
1438 ovs_frag_type_to_string(enum ovs_frag_type type)
1441 case OVS_FRAG_TYPE_NONE:
1443 case OVS_FRAG_TYPE_FIRST:
1445 case OVS_FRAG_TYPE_LATER:
1447 case __OVS_FRAG_TYPE_MAX:
1453 static enum odp_key_fitness
1454 odp_tun_key_from_attr__(const struct nlattr *attr,
1455 const struct nlattr *flow_attrs, size_t flow_attr_len,
1456 const struct flow_tnl *src_tun, struct flow_tnl *tun,
1460 const struct nlattr *a;
1462 bool unknown = false;
1464 NL_NESTED_FOR_EACH(a, left, attr) {
1465 uint16_t type = nl_attr_type(a);
1466 size_t len = nl_attr_get_size(a);
1467 int expected_len = odp_key_attr_len(ovs_tun_key_attr_lens,
1468 OVS_TUNNEL_ATTR_MAX, type);
1470 if (len != expected_len && expected_len >= 0) {
1471 return ODP_FIT_ERROR;
1475 case OVS_TUNNEL_KEY_ATTR_ID:
1476 tun->tun_id = nl_attr_get_be64(a);
1477 tun->flags |= FLOW_TNL_F_KEY;
1479 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
1480 tun->ip_src = nl_attr_get_be32(a);
1482 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
1483 tun->ip_dst = nl_attr_get_be32(a);
1485 case OVS_TUNNEL_KEY_ATTR_TOS:
1486 tun->ip_tos = nl_attr_get_u8(a);
1488 case OVS_TUNNEL_KEY_ATTR_TTL:
1489 tun->ip_ttl = nl_attr_get_u8(a);
1492 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
1493 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
1495 case OVS_TUNNEL_KEY_ATTR_CSUM:
1496 tun->flags |= FLOW_TNL_F_CSUM;
1498 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
1499 tun->tp_src = nl_attr_get_be16(a);
1501 case OVS_TUNNEL_KEY_ATTR_TP_DST:
1502 tun->tp_dst = nl_attr_get_be16(a);
1504 case OVS_TUNNEL_KEY_ATTR_OAM:
1505 tun->flags |= FLOW_TNL_F_OAM;
1507 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS: {
1508 static const struct nl_policy vxlan_opts_policy[] = {
1509 [OVS_VXLAN_EXT_GBP] = { .type = NL_A_U32 },
1511 struct nlattr *ext[ARRAY_SIZE(vxlan_opts_policy)];
1513 if (!nl_parse_nested(a, vxlan_opts_policy, ext, ARRAY_SIZE(ext))) {
1514 return ODP_FIT_ERROR;
1517 if (ext[OVS_VXLAN_EXT_GBP]) {
1518 uint32_t gbp = nl_attr_get_u32(ext[OVS_VXLAN_EXT_GBP]);
1520 tun->gbp_id = htons(gbp & 0xFFFF);
1521 tun->gbp_flags = (gbp >> 16) & 0xFF;
1526 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
1527 if (tun_metadata_from_geneve_nlattr(a, flow_attrs, flow_attr_len,
1528 src_tun, udpif, tun)) {
1529 return ODP_FIT_ERROR;
1534 /* Allow this to show up as unexpected, if there are unknown
1535 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1542 return ODP_FIT_ERROR;
1545 return ODP_FIT_TOO_MUCH;
1547 return ODP_FIT_PERFECT;
1550 enum odp_key_fitness
1551 odp_tun_key_from_attr(const struct nlattr *attr, bool udpif,
1552 struct flow_tnl *tun)
1554 memset(tun, 0, sizeof *tun);
1555 return odp_tun_key_from_attr__(attr, NULL, 0, NULL, tun, udpif);
1559 tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key,
1560 const struct flow_tnl *tun_flow_key,
1561 const struct ofpbuf *key_buf)
1565 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
1567 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1568 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
1569 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
1571 if (tun_key->ip_src) {
1572 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1574 if (tun_key->ip_dst) {
1575 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1577 if (tun_key->ip_tos) {
1578 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1580 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1581 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1582 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1584 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1585 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1587 if (tun_key->tp_src) {
1588 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1590 if (tun_key->tp_dst) {
1591 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1593 if (tun_key->flags & FLOW_TNL_F_OAM) {
1594 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1596 if (tun_key->gbp_flags || tun_key->gbp_id) {
1597 size_t vxlan_opts_ofs;
1599 vxlan_opts_ofs = nl_msg_start_nested(a, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
1600 nl_msg_put_u32(a, OVS_VXLAN_EXT_GBP,
1601 (tun_key->gbp_flags << 16) | ntohs(tun_key->gbp_id));
1602 nl_msg_end_nested(a, vxlan_opts_ofs);
1604 tun_metadata_to_geneve_nlattr(tun_key, tun_flow_key, key_buf, a);
1606 nl_msg_end_nested(a, tun_key_ofs);
1610 odp_mask_attr_is_wildcard(const struct nlattr *ma)
1612 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1616 odp_mask_is_exact(enum ovs_key_attr attr, const void *mask, size_t size)
1618 if (attr == OVS_KEY_ATTR_TCP_FLAGS) {
1619 return TCP_FLAGS(*(ovs_be16 *)mask) == TCP_FLAGS(OVS_BE16_MAX);
1621 if (attr == OVS_KEY_ATTR_IPV6) {
1622 const struct ovs_key_ipv6 *ipv6_mask = mask;
1625 ((ipv6_mask->ipv6_label & htonl(IPV6_LABEL_MASK))
1626 == htonl(IPV6_LABEL_MASK))
1627 && ipv6_mask->ipv6_proto == UINT8_MAX
1628 && ipv6_mask->ipv6_tclass == UINT8_MAX
1629 && ipv6_mask->ipv6_hlimit == UINT8_MAX
1630 && ipv6_mask->ipv6_frag == UINT8_MAX
1631 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_src)
1632 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_dst);
1634 if (attr == OVS_KEY_ATTR_TUNNEL) {
1638 if (attr == OVS_KEY_ATTR_ARP) {
1639 /* ARP key has padding, ignore it. */
1640 BUILD_ASSERT_DECL(sizeof(struct ovs_key_arp) == 24);
1641 BUILD_ASSERT_DECL(offsetof(struct ovs_key_arp, arp_tha) == 10 + 6);
1642 size = offsetof(struct ovs_key_arp, arp_tha) + ETH_ADDR_LEN;
1643 ovs_assert(((uint16_t *)mask)[size/2] == 0);
1646 return is_all_ones(mask, size);
1650 odp_mask_attr_is_exact(const struct nlattr *ma)
1652 enum ovs_key_attr attr = nl_attr_type(ma);
1656 if (attr == OVS_KEY_ATTR_TUNNEL) {
1659 mask = nl_attr_get(ma);
1660 size = nl_attr_get_size(ma);
1663 return odp_mask_is_exact(attr, mask, size);
1667 odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1670 struct odp_portno_names *odp_portno_names;
1672 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1673 odp_portno_names->port_no = port_no;
1674 odp_portno_names->name = xstrdup(port_name);
1675 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1676 hash_odp_port(port_no));
1680 odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1682 struct odp_portno_names *odp_portno_names;
1684 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1685 hash_odp_port(port_no), portno_names) {
1686 if (odp_portno_names->port_no == port_no) {
1687 return odp_portno_names->name;
1694 odp_portno_names_destroy(struct hmap *portno_names)
1696 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1697 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1698 hmap_node, portno_names) {
1699 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1700 free(odp_portno_names->name);
1701 free(odp_portno_names);
1705 /* Format helpers. */
1708 format_eth(struct ds *ds, const char *name, const struct eth_addr key,
1709 const struct eth_addr *mask, bool verbose)
1711 bool mask_empty = mask && eth_addr_is_zero(*mask);
1713 if (verbose || !mask_empty) {
1714 bool mask_full = !mask || eth_mask_is_exact(*mask);
1717 ds_put_format(ds, "%s="ETH_ADDR_FMT",", name, ETH_ADDR_ARGS(key));
1719 ds_put_format(ds, "%s=", name);
1720 eth_format_masked(key, mask, ds);
1721 ds_put_char(ds, ',');
1727 format_be64(struct ds *ds, const char *name, ovs_be64 key,
1728 const ovs_be64 *mask, bool verbose)
1730 bool mask_empty = mask && !*mask;
1732 if (verbose || !mask_empty) {
1733 bool mask_full = !mask || *mask == OVS_BE64_MAX;
1735 ds_put_format(ds, "%s=0x%"PRIx64, name, ntohll(key));
1736 if (!mask_full) { /* Partially masked. */
1737 ds_put_format(ds, "/%#"PRIx64, ntohll(*mask));
1739 ds_put_char(ds, ',');
1744 format_ipv4(struct ds *ds, const char *name, ovs_be32 key,
1745 const ovs_be32 *mask, bool verbose)
1747 bool mask_empty = mask && !*mask;
1749 if (verbose || !mask_empty) {
1750 bool mask_full = !mask || *mask == OVS_BE32_MAX;
1752 ds_put_format(ds, "%s="IP_FMT, name, IP_ARGS(key));
1753 if (!mask_full) { /* Partially masked. */
1754 ds_put_format(ds, "/"IP_FMT, IP_ARGS(*mask));
1756 ds_put_char(ds, ',');
1761 format_ipv6(struct ds *ds, const char *name, const ovs_be32 key_[4],
1762 const ovs_be32 (*mask_)[4], bool verbose)
1764 char buf[INET6_ADDRSTRLEN];
1765 const struct in6_addr *key = (const struct in6_addr *)key_;
1766 const struct in6_addr *mask = mask_ ? (const struct in6_addr *)*mask_
1768 bool mask_empty = mask && ipv6_mask_is_any(mask);
1770 if (verbose || !mask_empty) {
1771 bool mask_full = !mask || ipv6_mask_is_exact(mask);
1773 inet_ntop(AF_INET6, key, buf, sizeof buf);
1774 ds_put_format(ds, "%s=%s", name, buf);
1775 if (!mask_full) { /* Partially masked. */
1776 inet_ntop(AF_INET6, mask, buf, sizeof buf);
1777 ds_put_format(ds, "/%s", buf);
1779 ds_put_char(ds, ',');
1784 format_ipv6_label(struct ds *ds, const char *name, ovs_be32 key,
1785 const ovs_be32 *mask, bool verbose)
1787 bool mask_empty = mask && !*mask;
1789 if (verbose || !mask_empty) {
1790 bool mask_full = !mask
1791 || (*mask & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK);
1793 ds_put_format(ds, "%s=%#"PRIx32, name, ntohl(key));
1794 if (!mask_full) { /* Partially masked. */
1795 ds_put_format(ds, "/%#"PRIx32, ntohl(*mask));
1797 ds_put_char(ds, ',');
1802 format_u8x(struct ds *ds, const char *name, uint8_t key,
1803 const uint8_t *mask, bool verbose)
1805 bool mask_empty = mask && !*mask;
1807 if (verbose || !mask_empty) {
1808 bool mask_full = !mask || *mask == UINT8_MAX;
1810 ds_put_format(ds, "%s=%#"PRIx8, name, key);
1811 if (!mask_full) { /* Partially masked. */
1812 ds_put_format(ds, "/%#"PRIx8, *mask);
1814 ds_put_char(ds, ',');
1819 format_u8u(struct ds *ds, const char *name, uint8_t key,
1820 const uint8_t *mask, bool verbose)
1822 bool mask_empty = mask && !*mask;
1824 if (verbose || !mask_empty) {
1825 bool mask_full = !mask || *mask == UINT8_MAX;
1827 ds_put_format(ds, "%s=%"PRIu8, name, key);
1828 if (!mask_full) { /* Partially masked. */
1829 ds_put_format(ds, "/%#"PRIx8, *mask);
1831 ds_put_char(ds, ',');
1836 format_be16(struct ds *ds, const char *name, ovs_be16 key,
1837 const ovs_be16 *mask, bool verbose)
1839 bool mask_empty = mask && !*mask;
1841 if (verbose || !mask_empty) {
1842 bool mask_full = !mask || *mask == OVS_BE16_MAX;
1844 ds_put_format(ds, "%s=%"PRIu16, name, ntohs(key));
1845 if (!mask_full) { /* Partially masked. */
1846 ds_put_format(ds, "/%#"PRIx16, ntohs(*mask));
1848 ds_put_char(ds, ',');
1853 format_be16x(struct ds *ds, const char *name, ovs_be16 key,
1854 const ovs_be16 *mask, bool verbose)
1856 bool mask_empty = mask && !*mask;
1858 if (verbose || !mask_empty) {
1859 bool mask_full = !mask || *mask == OVS_BE16_MAX;
1861 ds_put_format(ds, "%s=%#"PRIx16, name, ntohs(key));
1862 if (!mask_full) { /* Partially masked. */
1863 ds_put_format(ds, "/%#"PRIx16, ntohs(*mask));
1865 ds_put_char(ds, ',');
1870 format_tun_flags(struct ds *ds, const char *name, uint16_t key,
1871 const uint16_t *mask, bool verbose)
1873 bool mask_empty = mask && !*mask;
1875 if (verbose || !mask_empty) {
1876 ds_put_cstr(ds, name);
1877 ds_put_char(ds, '(');
1879 format_flags_masked(ds, NULL, flow_tun_flag_to_string, key,
1880 *mask & FLOW_TNL_F_MASK, FLOW_TNL_F_MASK);
1881 } else { /* Fully masked. */
1882 format_flags(ds, flow_tun_flag_to_string, key, '|');
1884 ds_put_cstr(ds, "),");
1889 check_attr_len(struct ds *ds, const struct nlattr *a, const struct nlattr *ma,
1890 const struct attr_len_tbl tbl[], int max_len, bool need_key)
1894 expected_len = odp_key_attr_len(tbl, max_len, nl_attr_type(a));
1895 if (expected_len != ATTR_LEN_VARIABLE &&
1896 expected_len != ATTR_LEN_NESTED) {
1898 bool bad_key_len = nl_attr_get_size(a) != expected_len;
1899 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
1901 if (bad_key_len || bad_mask_len) {
1903 ds_put_format(ds, "key%u", nl_attr_type(a));
1906 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
1907 nl_attr_get_size(a), expected_len);
1909 format_generic_odp_key(a, ds);
1911 ds_put_char(ds, '/');
1913 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1914 nl_attr_get_size(ma), expected_len);
1916 format_generic_odp_key(ma, ds);
1918 ds_put_char(ds, ')');
1927 format_unknown_key(struct ds *ds, const struct nlattr *a,
1928 const struct nlattr *ma)
1930 ds_put_format(ds, "key%u(", nl_attr_type(a));
1931 format_generic_odp_key(a, ds);
1932 if (ma && !odp_mask_attr_is_exact(ma)) {
1933 ds_put_char(ds, '/');
1934 format_generic_odp_key(ma, ds);
1936 ds_put_cstr(ds, "),");
1940 format_odp_tun_vxlan_opt(const struct nlattr *attr,
1941 const struct nlattr *mask_attr, struct ds *ds,
1945 const struct nlattr *a;
1948 ofpbuf_init(&ofp, 100);
1949 NL_NESTED_FOR_EACH(a, left, attr) {
1950 uint16_t type = nl_attr_type(a);
1951 const struct nlattr *ma = NULL;
1954 ma = nl_attr_find__(nl_attr_get(mask_attr),
1955 nl_attr_get_size(mask_attr), type);
1957 ma = generate_all_wildcard_mask(ovs_vxlan_ext_attr_lens,
1963 if (!check_attr_len(ds, a, ma, ovs_vxlan_ext_attr_lens,
1964 OVS_VXLAN_EXT_MAX, true)) {
1969 case OVS_VXLAN_EXT_GBP: {
1970 uint32_t key = nl_attr_get_u32(a);
1971 ovs_be16 id, id_mask;
1972 uint8_t flags, flags_mask;
1974 id = htons(key & 0xFFFF);
1975 flags = (key >> 16) & 0xFF;
1977 uint32_t mask = nl_attr_get_u32(ma);
1978 id_mask = htons(mask & 0xFFFF);
1979 flags_mask = (mask >> 16) & 0xFF;
1982 ds_put_cstr(ds, "gbp(");
1983 format_be16(ds, "id", id, ma ? &id_mask : NULL, verbose);
1984 format_u8x(ds, "flags", flags, ma ? &flags_mask : NULL, verbose);
1986 ds_put_cstr(ds, "),");
1991 format_unknown_key(ds, a, ma);
1997 ofpbuf_uninit(&ofp);
2000 #define MASK(PTR, FIELD) PTR ? &PTR->FIELD : NULL
2003 format_geneve_opts(const struct geneve_opt *opt,
2004 const struct geneve_opt *mask, int opts_len,
2005 struct ds *ds, bool verbose)
2007 while (opts_len > 0) {
2009 uint8_t data_len, data_len_mask;
2011 if (opts_len < sizeof *opt) {
2012 ds_put_format(ds, "opt len %u less than minimum %"PRIuSIZE,
2013 opts_len, sizeof *opt);
2017 data_len = opt->length * 4;
2019 if (mask->length == 0x1f) {
2020 data_len_mask = UINT8_MAX;
2022 data_len_mask = mask->length;
2025 len = sizeof *opt + data_len;
2026 if (len > opts_len) {
2027 ds_put_format(ds, "opt len %u greater than remaining %u",
2032 ds_put_char(ds, '{');
2033 format_be16x(ds, "class", opt->opt_class, MASK(mask, opt_class),
2035 format_u8x(ds, "type", opt->type, MASK(mask, type), verbose);
2036 format_u8u(ds, "len", data_len, mask ? &data_len_mask : NULL, verbose);
2038 (verbose || !mask || !is_all_zeros(mask + 1, data_len))) {
2039 ds_put_hex(ds, opt + 1, data_len);
2040 if (mask && !is_all_ones(mask + 1, data_len)) {
2041 ds_put_char(ds, '/');
2042 ds_put_hex(ds, mask + 1, data_len);
2047 ds_put_char(ds, '}');
2049 opt += len / sizeof(*opt);
2051 mask += len / sizeof(*opt);
2058 format_odp_tun_geneve(const struct nlattr *attr,
2059 const struct nlattr *mask_attr, struct ds *ds,
2062 int opts_len = nl_attr_get_size(attr);
2063 const struct geneve_opt *opt = nl_attr_get(attr);
2064 const struct geneve_opt *mask = mask_attr ?
2065 nl_attr_get(mask_attr) : NULL;
2067 if (mask && nl_attr_get_size(attr) != nl_attr_get_size(mask_attr)) {
2068 ds_put_format(ds, "value len %"PRIuSIZE" different from mask len %"PRIuSIZE,
2069 nl_attr_get_size(attr), nl_attr_get_size(mask_attr));
2073 format_geneve_opts(opt, mask, opts_len, ds, verbose);
2077 format_odp_tun_attr(const struct nlattr *attr, const struct nlattr *mask_attr,
2078 struct ds *ds, bool verbose)
2081 const struct nlattr *a;
2083 uint16_t mask_flags = 0;
2086 ofpbuf_init(&ofp, 100);
2087 NL_NESTED_FOR_EACH(a, left, attr) {
2088 enum ovs_tunnel_key_attr type = nl_attr_type(a);
2089 const struct nlattr *ma = NULL;
2092 ma = nl_attr_find__(nl_attr_get(mask_attr),
2093 nl_attr_get_size(mask_attr), type);
2095 ma = generate_all_wildcard_mask(ovs_tun_key_attr_lens,
2096 OVS_TUNNEL_KEY_ATTR_MAX,
2101 if (!check_attr_len(ds, a, ma, ovs_tun_key_attr_lens,
2102 OVS_TUNNEL_KEY_ATTR_MAX, true)) {
2107 case OVS_TUNNEL_KEY_ATTR_ID:
2108 format_be64(ds, "tun_id", nl_attr_get_be64(a),
2109 ma ? nl_attr_get(ma) : NULL, verbose);
2110 flags |= FLOW_TNL_F_KEY;
2112 mask_flags |= FLOW_TNL_F_KEY;
2115 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
2116 format_ipv4(ds, "src", nl_attr_get_be32(a),
2117 ma ? nl_attr_get(ma) : NULL, verbose);
2119 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
2120 format_ipv4(ds, "dst", nl_attr_get_be32(a),
2121 ma ? nl_attr_get(ma) : NULL, verbose);
2123 case OVS_TUNNEL_KEY_ATTR_TOS:
2124 format_u8x(ds, "tos", nl_attr_get_u8(a),
2125 ma ? nl_attr_get(ma) : NULL, verbose);
2127 case OVS_TUNNEL_KEY_ATTR_TTL:
2128 format_u8u(ds, "ttl", nl_attr_get_u8(a),
2129 ma ? nl_attr_get(ma) : NULL, verbose);
2131 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
2132 flags |= FLOW_TNL_F_DONT_FRAGMENT;
2134 case OVS_TUNNEL_KEY_ATTR_CSUM:
2135 flags |= FLOW_TNL_F_CSUM;
2137 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
2138 format_be16(ds, "tp_src", nl_attr_get_be16(a),
2139 ma ? nl_attr_get(ma) : NULL, verbose);
2141 case OVS_TUNNEL_KEY_ATTR_TP_DST:
2142 format_be16(ds, "tp_dst", nl_attr_get_be16(a),
2143 ma ? nl_attr_get(ma) : NULL, verbose);
2145 case OVS_TUNNEL_KEY_ATTR_OAM:
2146 flags |= FLOW_TNL_F_OAM;
2148 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS:
2149 ds_put_cstr(ds, "vxlan(");
2150 format_odp_tun_vxlan_opt(a, ma, ds, verbose);
2151 ds_put_cstr(ds, "),");
2153 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
2154 ds_put_cstr(ds, "geneve(");
2155 format_odp_tun_geneve(a, ma, ds, verbose);
2156 ds_put_cstr(ds, "),");
2158 case __OVS_TUNNEL_KEY_ATTR_MAX:
2160 format_unknown_key(ds, a, ma);
2165 /* Flags can have a valid mask even if the attribute is not set, so
2166 * we need to collect these separately. */
2168 NL_NESTED_FOR_EACH(a, left, mask_attr) {
2169 switch (nl_attr_type(a)) {
2170 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
2171 mask_flags |= FLOW_TNL_F_DONT_FRAGMENT;
2173 case OVS_TUNNEL_KEY_ATTR_CSUM:
2174 mask_flags |= FLOW_TNL_F_CSUM;
2176 case OVS_TUNNEL_KEY_ATTR_OAM:
2177 mask_flags |= FLOW_TNL_F_OAM;
2183 format_tun_flags(ds, "flags", flags, mask_attr ? &mask_flags : NULL,
2186 ofpbuf_uninit(&ofp);
2190 odp_ct_state_to_string(uint32_t flag)
2193 case OVS_CS_F_REPLY_DIR:
2195 case OVS_CS_F_TRACKED:
2199 case OVS_CS_F_ESTABLISHED:
2201 case OVS_CS_F_RELATED:
2203 case OVS_CS_F_INVALID:
2211 format_frag(struct ds *ds, const char *name, uint8_t key,
2212 const uint8_t *mask, bool verbose)
2214 bool mask_empty = mask && !*mask;
2216 /* ODP frag is an enumeration field; partial masks are not meaningful. */
2217 if (verbose || !mask_empty) {
2218 bool mask_full = !mask || *mask == UINT8_MAX;
2220 if (!mask_full) { /* Partially masked. */
2221 ds_put_format(ds, "error: partial mask not supported for frag (%#"
2224 ds_put_format(ds, "%s=%s,", name, ovs_frag_type_to_string(key));
2230 mask_empty(const struct nlattr *ma)
2238 mask = nl_attr_get(ma);
2239 n = nl_attr_get_size(ma);
2241 return is_all_zeros(mask, n);
2245 format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
2246 const struct hmap *portno_names, struct ds *ds,
2249 enum ovs_key_attr attr = nl_attr_type(a);
2250 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2253 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
2255 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
2257 if (!check_attr_len(ds, a, ma, ovs_flow_key_attr_lens,
2258 OVS_KEY_ATTR_MAX, false)) {
2262 ds_put_char(ds, '(');
2264 case OVS_KEY_ATTR_ENCAP:
2265 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
2266 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
2267 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
2269 } else if (nl_attr_get_size(a)) {
2270 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
2275 case OVS_KEY_ATTR_PRIORITY:
2276 case OVS_KEY_ATTR_SKB_MARK:
2277 case OVS_KEY_ATTR_DP_HASH:
2278 case OVS_KEY_ATTR_RECIRC_ID:
2279 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2281 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2285 case OVS_KEY_ATTR_CT_MARK:
2286 if (verbose || !mask_empty(ma)) {
2287 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2289 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2294 case OVS_KEY_ATTR_CT_STATE:
2296 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
2298 ds_put_format(ds, "/%#"PRIx32,
2299 mask_empty(ma) ? 0 : nl_attr_get_u32(ma));
2301 } else if (!is_exact) {
2302 format_flags_masked(ds, NULL, odp_ct_state_to_string,
2304 mask_empty(ma) ? 0 : nl_attr_get_u32(ma),
2307 format_flags(ds, odp_ct_state_to_string, nl_attr_get_u32(a), '|');
2311 case OVS_KEY_ATTR_CT_ZONE:
2312 if (verbose || !mask_empty(ma)) {
2313 ds_put_format(ds, "%#"PRIx16, nl_attr_get_u16(a));
2315 ds_put_format(ds, "/%#"PRIx16, nl_attr_get_u16(ma));
2320 case OVS_KEY_ATTR_CT_LABELS: {
2321 const ovs_u128 *value = nl_attr_get(a);
2322 const ovs_u128 *mask = ma ? nl_attr_get(ma) : NULL;
2324 format_u128(ds, value, mask, verbose);
2328 case OVS_KEY_ATTR_TUNNEL:
2329 format_odp_tun_attr(a, ma, ds, verbose);
2332 case OVS_KEY_ATTR_IN_PORT:
2333 if (portno_names && verbose && is_exact) {
2334 char *name = odp_portno_names_get(portno_names,
2335 u32_to_odp(nl_attr_get_u32(a)));
2337 ds_put_format(ds, "%s", name);
2339 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
2342 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
2344 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
2349 case OVS_KEY_ATTR_ETHERNET: {
2350 const struct ovs_key_ethernet *mask = ma ? nl_attr_get(ma) : NULL;
2351 const struct ovs_key_ethernet *key = nl_attr_get(a);
2353 format_eth(ds, "src", key->eth_src, MASK(mask, eth_src), verbose);
2354 format_eth(ds, "dst", key->eth_dst, MASK(mask, eth_dst), verbose);
2358 case OVS_KEY_ATTR_VLAN:
2359 format_vlan_tci(ds, nl_attr_get_be16(a),
2360 ma ? nl_attr_get_be16(ma) : OVS_BE16_MAX, verbose);
2363 case OVS_KEY_ATTR_MPLS: {
2364 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
2365 const struct ovs_key_mpls *mpls_mask = NULL;
2366 size_t size = nl_attr_get_size(a);
2368 if (!size || size % sizeof *mpls_key) {
2369 ds_put_format(ds, "(bad key length %"PRIuSIZE")", size);
2373 mpls_mask = nl_attr_get(ma);
2374 if (size != nl_attr_get_size(ma)) {
2375 ds_put_format(ds, "(key length %"PRIuSIZE" != "
2376 "mask length %"PRIuSIZE")",
2377 size, nl_attr_get_size(ma));
2381 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
2384 case OVS_KEY_ATTR_ETHERTYPE:
2385 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
2387 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
2391 case OVS_KEY_ATTR_IPV4: {
2392 const struct ovs_key_ipv4 *key = nl_attr_get(a);
2393 const struct ovs_key_ipv4 *mask = ma ? nl_attr_get(ma) : NULL;
2395 format_ipv4(ds, "src", key->ipv4_src, MASK(mask, ipv4_src), verbose);
2396 format_ipv4(ds, "dst", key->ipv4_dst, MASK(mask, ipv4_dst), verbose);
2397 format_u8u(ds, "proto", key->ipv4_proto, MASK(mask, ipv4_proto),
2399 format_u8x(ds, "tos", key->ipv4_tos, MASK(mask, ipv4_tos), verbose);
2400 format_u8u(ds, "ttl", key->ipv4_ttl, MASK(mask, ipv4_ttl), verbose);
2401 format_frag(ds, "frag", key->ipv4_frag, MASK(mask, ipv4_frag),
2406 case OVS_KEY_ATTR_IPV6: {
2407 const struct ovs_key_ipv6 *key = nl_attr_get(a);
2408 const struct ovs_key_ipv6 *mask = ma ? nl_attr_get(ma) : NULL;
2410 format_ipv6(ds, "src", key->ipv6_src, MASK(mask, ipv6_src), verbose);
2411 format_ipv6(ds, "dst", key->ipv6_dst, MASK(mask, ipv6_dst), verbose);
2412 format_ipv6_label(ds, "label", key->ipv6_label, MASK(mask, ipv6_label),
2414 format_u8u(ds, "proto", key->ipv6_proto, MASK(mask, ipv6_proto),
2416 format_u8x(ds, "tclass", key->ipv6_tclass, MASK(mask, ipv6_tclass),
2418 format_u8u(ds, "hlimit", key->ipv6_hlimit, MASK(mask, ipv6_hlimit),
2420 format_frag(ds, "frag", key->ipv6_frag, MASK(mask, ipv6_frag),
2425 /* These have the same structure and format. */
2426 case OVS_KEY_ATTR_TCP:
2427 case OVS_KEY_ATTR_UDP:
2428 case OVS_KEY_ATTR_SCTP: {
2429 const struct ovs_key_tcp *key = nl_attr_get(a);
2430 const struct ovs_key_tcp *mask = ma ? nl_attr_get(ma) : NULL;
2432 format_be16(ds, "src", key->tcp_src, MASK(mask, tcp_src), verbose);
2433 format_be16(ds, "dst", key->tcp_dst, MASK(mask, tcp_dst), verbose);
2437 case OVS_KEY_ATTR_TCP_FLAGS:
2439 format_flags_masked(ds, NULL, packet_tcp_flag_to_string,
2440 ntohs(nl_attr_get_be16(a)),
2441 TCP_FLAGS(nl_attr_get_be16(ma)),
2442 TCP_FLAGS(OVS_BE16_MAX));
2444 format_flags(ds, packet_tcp_flag_to_string,
2445 ntohs(nl_attr_get_be16(a)), '|');
2449 case OVS_KEY_ATTR_ICMP: {
2450 const struct ovs_key_icmp *key = nl_attr_get(a);
2451 const struct ovs_key_icmp *mask = ma ? nl_attr_get(ma) : NULL;
2453 format_u8u(ds, "type", key->icmp_type, MASK(mask, icmp_type), verbose);
2454 format_u8u(ds, "code", key->icmp_code, MASK(mask, icmp_code), verbose);
2458 case OVS_KEY_ATTR_ICMPV6: {
2459 const struct ovs_key_icmpv6 *key = nl_attr_get(a);
2460 const struct ovs_key_icmpv6 *mask = ma ? nl_attr_get(ma) : NULL;
2462 format_u8u(ds, "type", key->icmpv6_type, MASK(mask, icmpv6_type),
2464 format_u8u(ds, "code", key->icmpv6_code, MASK(mask, icmpv6_code),
2469 case OVS_KEY_ATTR_ARP: {
2470 const struct ovs_key_arp *mask = ma ? nl_attr_get(ma) : NULL;
2471 const struct ovs_key_arp *key = nl_attr_get(a);
2473 format_ipv4(ds, "sip", key->arp_sip, MASK(mask, arp_sip), verbose);
2474 format_ipv4(ds, "tip", key->arp_tip, MASK(mask, arp_tip), verbose);
2475 format_be16(ds, "op", key->arp_op, MASK(mask, arp_op), verbose);
2476 format_eth(ds, "sha", key->arp_sha, MASK(mask, arp_sha), verbose);
2477 format_eth(ds, "tha", key->arp_tha, MASK(mask, arp_tha), verbose);
2481 case OVS_KEY_ATTR_ND: {
2482 const struct ovs_key_nd *mask = ma ? nl_attr_get(ma) : NULL;
2483 const struct ovs_key_nd *key = nl_attr_get(a);
2485 format_ipv6(ds, "target", key->nd_target, MASK(mask, nd_target),
2487 format_eth(ds, "sll", key->nd_sll, MASK(mask, nd_sll), verbose);
2488 format_eth(ds, "tll", key->nd_tll, MASK(mask, nd_tll), verbose);
2493 case OVS_KEY_ATTR_UNSPEC:
2494 case __OVS_KEY_ATTR_MAX:
2496 format_generic_odp_key(a, ds);
2498 ds_put_char(ds, '/');
2499 format_generic_odp_key(ma, ds);
2503 ds_put_char(ds, ')');
2506 static struct nlattr *
2507 generate_all_wildcard_mask(const struct attr_len_tbl tbl[], int max,
2508 struct ofpbuf *ofp, const struct nlattr *key)
2510 const struct nlattr *a;
2512 int type = nl_attr_type(key);
2513 int size = nl_attr_get_size(key);
2515 if (odp_key_attr_len(tbl, max, type) != ATTR_LEN_NESTED) {
2516 nl_msg_put_unspec_zero(ofp, type, size);
2520 if (tbl[type].next) {
2521 tbl = tbl[type].next;
2522 max = tbl[type].next_max;
2525 nested_mask = nl_msg_start_nested(ofp, type);
2526 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
2527 generate_all_wildcard_mask(tbl, max, ofp, nl_attr_get(a));
2529 nl_msg_end_nested(ofp, nested_mask);
2536 format_u128(struct ds *ds, const ovs_u128 *key, const ovs_u128 *mask,
2539 if (verbose || (mask && !ovs_u128_is_zero(mask))) {
2542 hton128(key, &value);
2543 ds_put_hex(ds, &value, sizeof value);
2544 if (mask && !(ovs_u128_is_ones(mask))) {
2545 hton128(mask, &value);
2546 ds_put_char(ds, '/');
2547 ds_put_hex(ds, &value, sizeof value);
2553 scan_u128(const char *s_, ovs_u128 *value, ovs_u128 *mask)
2555 char *s = CONST_CAST(char *, s_);
2559 if (!parse_int_string(s, (uint8_t *)&be_value, sizeof be_value, &s)) {
2560 ntoh128(&be_value, value);
2565 if (ovs_scan(s, "/%n", &n)) {
2569 error = parse_int_string(s, (uint8_t *)&be_mask,
2570 sizeof be_mask, &s);
2574 ntoh128(&be_mask, mask);
2576 *mask = OVS_U128_MAX;
2586 odp_ufid_from_string(const char *s_, ovs_u128 *ufid)
2590 if (ovs_scan(s, "ufid:")) {
2593 if (!uuid_from_string_prefix((struct uuid *)ufid, s)) {
2605 odp_format_ufid(const ovs_u128 *ufid, struct ds *ds)
2607 ds_put_format(ds, "ufid:"UUID_FMT, UUID_ARGS((struct uuid *)ufid));
2610 /* Appends to 'ds' a string representation of the 'key_len' bytes of
2611 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
2612 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
2613 * non-null and 'verbose' is true, translates odp port number to its name. */
2615 odp_flow_format(const struct nlattr *key, size_t key_len,
2616 const struct nlattr *mask, size_t mask_len,
2617 const struct hmap *portno_names, struct ds *ds, bool verbose)
2620 const struct nlattr *a;
2622 bool has_ethtype_key = false;
2623 const struct nlattr *ma = NULL;
2625 bool first_field = true;
2627 ofpbuf_init(&ofp, 100);
2628 NL_ATTR_FOR_EACH (a, left, key, key_len) {
2629 bool is_nested_attr;
2630 bool is_wildcard = false;
2631 int attr_type = nl_attr_type(a);
2633 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
2634 has_ethtype_key = true;
2637 is_nested_attr = odp_key_attr_len(ovs_flow_key_attr_lens,
2638 OVS_KEY_ATTR_MAX, attr_type) ==
2641 if (mask && mask_len) {
2642 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
2643 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
2646 if (verbose || !is_wildcard || is_nested_attr) {
2647 if (is_wildcard && !ma) {
2648 ma = generate_all_wildcard_mask(ovs_flow_key_attr_lens,
2653 ds_put_char(ds, ',');
2655 format_odp_key_attr(a, ma, portno_names, ds, verbose);
2656 first_field = false;
2660 ofpbuf_uninit(&ofp);
2665 if (left == key_len) {
2666 ds_put_cstr(ds, "<empty>");
2668 ds_put_format(ds, ",***%u leftover bytes*** (", left);
2669 for (i = 0; i < left; i++) {
2670 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
2672 ds_put_char(ds, ')');
2674 if (!has_ethtype_key) {
2675 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
2677 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
2678 ntohs(nl_attr_get_be16(ma)));
2682 ds_put_cstr(ds, "<empty>");
2686 /* Appends to 'ds' a string representation of the 'key_len' bytes of
2687 * OVS_KEY_ATTR_* attributes in 'key'. */
2689 odp_flow_key_format(const struct nlattr *key,
2690 size_t key_len, struct ds *ds)
2692 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
2696 ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
2698 if (!strcasecmp(s, "no")) {
2699 *type = OVS_FRAG_TYPE_NONE;
2700 } else if (!strcasecmp(s, "first")) {
2701 *type = OVS_FRAG_TYPE_FIRST;
2702 } else if (!strcasecmp(s, "later")) {
2703 *type = OVS_FRAG_TYPE_LATER;
2713 scan_eth(const char *s, struct eth_addr *key, struct eth_addr *mask)
2717 if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n",
2718 ETH_ADDR_SCAN_ARGS(*key), &n)) {
2722 if (ovs_scan(s + len, "/"ETH_ADDR_SCAN_FMT"%n",
2723 ETH_ADDR_SCAN_ARGS(*mask), &n)) {
2726 memset(mask, 0xff, sizeof *mask);
2735 scan_ipv4(const char *s, ovs_be32 *key, ovs_be32 *mask)
2739 if (ovs_scan(s, IP_SCAN_FMT"%n", IP_SCAN_ARGS(key), &n)) {
2743 if (ovs_scan(s + len, "/"IP_SCAN_FMT"%n",
2744 IP_SCAN_ARGS(mask), &n)) {
2747 *mask = OVS_BE32_MAX;
2756 scan_ipv6(const char *s, ovs_be32 (*key)[4], ovs_be32 (*mask)[4])
2759 char ipv6_s[IPV6_SCAN_LEN + 1];
2761 if (ovs_scan(s, IPV6_SCAN_FMT"%n", ipv6_s, &n)
2762 && inet_pton(AF_INET6, ipv6_s, key) == 1) {
2766 if (ovs_scan(s + len, "/"IPV6_SCAN_FMT"%n", ipv6_s, &n)
2767 && inet_pton(AF_INET6, ipv6_s, mask) == 1) {
2770 memset(mask, 0xff, sizeof *mask);
2779 scan_ipv6_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
2784 if (ovs_scan(s, "%i%n", &key_, &n)
2785 && (key_ & ~IPV6_LABEL_MASK) == 0) {
2790 if (ovs_scan(s + len, "/%i%n", &mask_, &n)
2791 && (mask_ & ~IPV6_LABEL_MASK) == 0) {
2793 *mask = htonl(mask_);
2795 *mask = htonl(IPV6_LABEL_MASK);
2804 scan_u8(const char *s, uint8_t *key, uint8_t *mask)
2808 if (ovs_scan(s, "%"SCNi8"%n", key, &n)) {
2812 if (ovs_scan(s + len, "/%"SCNi8"%n", mask, &n)) {
2824 scan_u16(const char *s, uint16_t *key, uint16_t *mask)
2828 if (ovs_scan(s, "%"SCNi16"%n", key, &n)) {
2832 if (ovs_scan(s + len, "/%"SCNi16"%n", mask, &n)) {
2844 scan_u32(const char *s, uint32_t *key, uint32_t *mask)
2848 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
2852 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
2864 scan_be16(const char *s, ovs_be16 *key, ovs_be16 *mask)
2866 uint16_t key_, mask_;
2869 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
2874 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
2876 *mask = htons(mask_);
2878 *mask = OVS_BE16_MAX;
2887 scan_be64(const char *s, ovs_be64 *key, ovs_be64 *mask)
2889 uint64_t key_, mask_;
2892 if (ovs_scan(s, "%"SCNi64"%n", &key_, &n)) {
2895 *key = htonll(key_);
2897 if (ovs_scan(s + len, "/%"SCNi64"%n", &mask_, &n)) {
2899 *mask = htonll(mask_);
2901 *mask = OVS_BE64_MAX;
2910 scan_tun_flags(const char *s, uint16_t *key, uint16_t *mask)
2912 uint32_t flags, fmask;
2915 n = parse_odp_flags(s, flow_tun_flag_to_string, &flags,
2916 FLOW_TNL_F_MASK, mask ? &fmask : NULL);
2917 if (n >= 0 && s[n] == ')') {
2928 scan_tcp_flags(const char *s, ovs_be16 *key, ovs_be16 *mask)
2930 uint32_t flags, fmask;
2933 n = parse_odp_flags(s, packet_tcp_flag_to_string, &flags,
2934 TCP_FLAGS(OVS_BE16_MAX), mask ? &fmask : NULL);
2936 *key = htons(flags);
2938 *mask = htons(fmask);
2946 ovs_to_odp_ct_state(uint8_t state)
2950 if (state & CS_NEW) {
2951 odp |= OVS_CS_F_NEW;
2953 if (state & CS_ESTABLISHED) {
2954 odp |= OVS_CS_F_ESTABLISHED;
2956 if (state & CS_RELATED) {
2957 odp |= OVS_CS_F_RELATED;
2959 if (state & CS_INVALID) {
2960 odp |= OVS_CS_F_INVALID;
2962 if (state & CS_REPLY_DIR) {
2963 odp |= OVS_CS_F_REPLY_DIR;
2965 if (state & CS_TRACKED) {
2966 odp |= OVS_CS_F_TRACKED;
2973 odp_to_ovs_ct_state(uint32_t flags)
2977 if (flags & OVS_CS_F_NEW) {
2980 if (flags & OVS_CS_F_ESTABLISHED) {
2981 state |= CS_ESTABLISHED;
2983 if (flags & OVS_CS_F_RELATED) {
2984 state |= CS_RELATED;
2986 if (flags & OVS_CS_F_INVALID) {
2987 state |= CS_INVALID;
2989 if (flags & OVS_CS_F_REPLY_DIR) {
2990 state |= CS_REPLY_DIR;
2992 if (flags & OVS_CS_F_TRACKED) {
2993 state |= CS_TRACKED;
3000 scan_ct_state(const char *s, uint32_t *key, uint32_t *mask)
3002 uint32_t flags, fmask;
3005 n = parse_flags(s, odp_ct_state_to_string, ')', NULL, NULL, &flags,
3006 ovs_to_odp_ct_state(CS_SUPPORTED_MASK),
3007 mask ? &fmask : NULL);
3020 scan_frag(const char *s, uint8_t *key, uint8_t *mask)
3024 enum ovs_frag_type frag_type;
3026 if (ovs_scan(s, "%7[a-z]%n", frag, &n)
3027 && ovs_frag_type_from_string(frag, &frag_type)) {
3040 scan_port(const char *s, uint32_t *key, uint32_t *mask,
3041 const struct simap *port_names)
3045 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
3049 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
3056 } else if (port_names) {
3057 const struct simap_node *node;
3060 len = strcspn(s, ")");
3061 node = simap_find_len(port_names, s, len);
3074 /* Helper for vlan parsing. */
3075 struct ovs_key_vlan__ {
3080 set_be16_bf(ovs_be16 *bf, uint8_t bits, uint8_t offset, uint16_t value)
3082 const uint16_t mask = ((1U << bits) - 1) << offset;
3084 if (value >> bits) {
3088 *bf = htons((ntohs(*bf) & ~mask) | (value << offset));
3093 scan_be16_bf(const char *s, ovs_be16 *key, ovs_be16 *mask, uint8_t bits,
3096 uint16_t key_, mask_;
3099 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
3102 if (set_be16_bf(key, bits, offset, key_)) {
3104 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
3107 if (!set_be16_bf(mask, bits, offset, mask_)) {
3111 *mask |= htons(((1U << bits) - 1) << offset);
3121 scan_vid(const char *s, ovs_be16 *key, ovs_be16 *mask)
3123 return scan_be16_bf(s, key, mask, 12, VLAN_VID_SHIFT);
3127 scan_pcp(const char *s, ovs_be16 *key, ovs_be16 *mask)
3129 return scan_be16_bf(s, key, mask, 3, VLAN_PCP_SHIFT);
3133 scan_cfi(const char *s, ovs_be16 *key, ovs_be16 *mask)
3135 return scan_be16_bf(s, key, mask, 1, VLAN_CFI_SHIFT);
3140 set_be32_bf(ovs_be32 *bf, uint8_t bits, uint8_t offset, uint32_t value)
3142 const uint32_t mask = ((1U << bits) - 1) << offset;
3144 if (value >> bits) {
3148 *bf = htonl((ntohl(*bf) & ~mask) | (value << offset));
3153 scan_be32_bf(const char *s, ovs_be32 *key, ovs_be32 *mask, uint8_t bits,
3156 uint32_t key_, mask_;
3159 if (ovs_scan(s, "%"SCNi32"%n", &key_, &n)) {
3162 if (set_be32_bf(key, bits, offset, key_)) {
3164 if (ovs_scan(s + len, "/%"SCNi32"%n", &mask_, &n)) {
3167 if (!set_be32_bf(mask, bits, offset, mask_)) {
3171 *mask |= htonl(((1U << bits) - 1) << offset);
3181 scan_mpls_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
3183 return scan_be32_bf(s, key, mask, 20, MPLS_LABEL_SHIFT);
3187 scan_mpls_tc(const char *s, ovs_be32 *key, ovs_be32 *mask)
3189 return scan_be32_bf(s, key, mask, 3, MPLS_TC_SHIFT);
3193 scan_mpls_ttl(const char *s, ovs_be32 *key, ovs_be32 *mask)
3195 return scan_be32_bf(s, key, mask, 8, MPLS_TTL_SHIFT);
3199 scan_mpls_bos(const char *s, ovs_be32 *key, ovs_be32 *mask)
3201 return scan_be32_bf(s, key, mask, 1, MPLS_BOS_SHIFT);
3205 scan_vxlan_gbp(const char *s, uint32_t *key, uint32_t *mask)
3207 const char *s_base = s;
3208 ovs_be16 id = 0, id_mask = 0;
3209 uint8_t flags = 0, flags_mask = 0;
3211 if (!strncmp(s, "id=", 3)) {
3213 s += scan_be16(s, &id, mask ? &id_mask : NULL);
3219 if (!strncmp(s, "flags=", 6)) {
3221 s += scan_u8(s, &flags, mask ? &flags_mask : NULL);
3224 if (!strncmp(s, "))", 2)) {
3227 *key = (flags << 16) | ntohs(id);
3229 *mask = (flags_mask << 16) | ntohs(id_mask);
3239 scan_geneve(const char *s, struct geneve_scan *key, struct geneve_scan *mask)
3241 const char *s_base = s;
3242 struct geneve_opt *opt = key->d;
3243 struct geneve_opt *opt_mask = mask ? mask->d : NULL;
3244 int len_remain = sizeof key->d;
3246 while (s[0] == '{' && len_remain >= sizeof *opt) {
3250 len_remain -= sizeof *opt;
3252 if (!strncmp(s, "class=", 6)) {
3254 s += scan_be16(s, &opt->opt_class,
3255 mask ? &opt_mask->opt_class : NULL);
3257 memset(&opt_mask->opt_class, 0, sizeof opt_mask->opt_class);
3263 if (!strncmp(s, "type=", 5)) {
3265 s += scan_u8(s, &opt->type, mask ? &opt_mask->type : NULL);
3267 memset(&opt_mask->type, 0, sizeof opt_mask->type);
3273 if (!strncmp(s, "len=", 4)) {
3274 uint8_t opt_len, opt_len_mask;
3276 s += scan_u8(s, &opt_len, mask ? &opt_len_mask : NULL);
3278 if (opt_len > 124 || opt_len % 4 || opt_len > len_remain) {
3281 opt->length = opt_len / 4;
3283 opt_mask->length = opt_len_mask;
3287 memset(&opt_mask->type, 0, sizeof opt_mask->type);
3293 if (parse_int_string(s, (uint8_t *)(opt + 1), data_len, (char **)&s)) {
3300 if (parse_int_string(s, (uint8_t *)(opt_mask + 1),
3301 data_len, (char **)&s)) {
3312 opt += 1 + data_len / 4;
3314 opt_mask += 1 + data_len / 4;
3316 len_remain -= data_len;
3321 int len = sizeof key->d - len_remain;
3335 tun_flags_to_attr(struct ofpbuf *a, const void *data_)
3337 const uint16_t *flags = data_;
3339 if (*flags & FLOW_TNL_F_DONT_FRAGMENT) {
3340 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
3342 if (*flags & FLOW_TNL_F_CSUM) {
3343 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
3345 if (*flags & FLOW_TNL_F_OAM) {
3346 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
3351 vxlan_gbp_to_attr(struct ofpbuf *a, const void *data_)
3353 const uint32_t *gbp = data_;
3356 size_t vxlan_opts_ofs;
3358 vxlan_opts_ofs = nl_msg_start_nested(a, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS);
3359 nl_msg_put_u32(a, OVS_VXLAN_EXT_GBP, *gbp);
3360 nl_msg_end_nested(a, vxlan_opts_ofs);
3365 geneve_to_attr(struct ofpbuf *a, const void *data_)
3367 const struct geneve_scan *geneve = data_;
3369 nl_msg_put_unspec(a, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, geneve->d,
3373 #define SCAN_PUT_ATTR(BUF, ATTR, DATA, FUNC) \
3375 unsigned long call_fn = (unsigned long)FUNC; \
3377 typedef void (*fn)(struct ofpbuf *, const void *); \
3379 func(BUF, &(DATA)); \
3381 nl_msg_put_unspec(BUF, ATTR, &(DATA), sizeof (DATA)); \
3385 #define SCAN_IF(NAME) \
3386 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3387 const char *start = s; \
3392 /* Usually no special initialization is needed. */
3393 #define SCAN_BEGIN(NAME, TYPE) \
3396 memset(&skey, 0, sizeof skey); \
3397 memset(&smask, 0, sizeof smask); \
3401 /* Init as fully-masked as mask will not be scanned. */
3402 #define SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) \
3405 memset(&skey, 0, sizeof skey); \
3406 memset(&smask, 0xff, sizeof smask); \
3410 /* VLAN needs special initialization. */
3411 #define SCAN_BEGIN_INIT(NAME, TYPE, KEY_INIT, MASK_INIT) \
3413 TYPE skey = KEY_INIT; \
3414 TYPE smask = MASK_INIT; \
3418 /* Scan unnamed entry as 'TYPE' */
3419 #define SCAN_TYPE(TYPE, KEY, MASK) \
3420 len = scan_##TYPE(s, KEY, MASK); \
3426 /* Scan named ('NAME') entry 'FIELD' as 'TYPE'. */
3427 #define SCAN_FIELD(NAME, TYPE, FIELD) \
3428 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3429 s += strlen(NAME); \
3430 SCAN_TYPE(TYPE, &skey.FIELD, mask ? &smask.FIELD : NULL); \
3434 #define SCAN_FINISH() \
3435 } while (*s++ == ',' && len != 0); \
3436 if (s[-1] != ')') { \
3440 #define SCAN_FINISH_SINGLE() \
3442 if (*s++ != ')') { \
3446 /* Beginning of nested attribute. */
3447 #define SCAN_BEGIN_NESTED(NAME, ATTR) \
3449 size_t key_offset, mask_offset; \
3450 key_offset = nl_msg_start_nested(key, ATTR); \
3452 mask_offset = nl_msg_start_nested(mask, ATTR); \
3457 #define SCAN_END_NESTED() \
3459 nl_msg_end_nested(key, key_offset); \
3461 nl_msg_end_nested(mask, mask_offset); \
3466 #define SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, FUNC) \
3467 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3469 memset(&skey, 0, sizeof skey); \
3470 memset(&smask, 0xff, sizeof smask); \
3471 s += strlen(NAME); \
3472 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3473 SCAN_PUT(ATTR, FUNC); \
3477 #define SCAN_FIELD_NESTED(NAME, TYPE, SCAN_AS, ATTR) \
3478 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, NULL)
3480 #define SCAN_FIELD_NESTED_FUNC(NAME, TYPE, SCAN_AS, FUNC) \
3481 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, 0, FUNC)
3483 #define SCAN_PUT(ATTR, FUNC) \
3484 if (!mask || !is_all_zeros(&smask, sizeof smask)) { \
3485 SCAN_PUT_ATTR(key, ATTR, skey, FUNC); \
3487 SCAN_PUT_ATTR(mask, ATTR, smask, FUNC); \
3491 #define SCAN_END(ATTR) \
3493 SCAN_PUT(ATTR, NULL); \
3497 #define SCAN_END_SINGLE(ATTR) \
3498 SCAN_FINISH_SINGLE(); \
3499 SCAN_PUT(ATTR, NULL); \
3503 #define SCAN_SINGLE(NAME, TYPE, SCAN_AS, ATTR) \
3504 SCAN_BEGIN(NAME, TYPE) { \
3505 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3506 } SCAN_END_SINGLE(ATTR)
3508 #define SCAN_SINGLE_FULLY_MASKED(NAME, TYPE, SCAN_AS, ATTR) \
3509 SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) { \
3510 SCAN_TYPE(SCAN_AS, &skey, NULL); \
3511 } SCAN_END_SINGLE(ATTR)
3513 /* scan_port needs one extra argument. */
3514 #define SCAN_SINGLE_PORT(NAME, TYPE, ATTR) \
3515 SCAN_BEGIN(NAME, TYPE) { \
3516 len = scan_port(s, &skey, &smask, port_names); \
3521 } SCAN_END_SINGLE(ATTR)
3524 parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
3525 struct ofpbuf *key, struct ofpbuf *mask)
3531 len = odp_ufid_from_string(s, &ufid);
3536 SCAN_SINGLE("skb_priority(", uint32_t, u32, OVS_KEY_ATTR_PRIORITY);
3537 SCAN_SINGLE("skb_mark(", uint32_t, u32, OVS_KEY_ATTR_SKB_MARK);
3538 SCAN_SINGLE_FULLY_MASKED("recirc_id(", uint32_t, u32,
3539 OVS_KEY_ATTR_RECIRC_ID);
3540 SCAN_SINGLE("dp_hash(", uint32_t, u32, OVS_KEY_ATTR_DP_HASH);
3542 SCAN_SINGLE("ct_state(", uint32_t, ct_state, OVS_KEY_ATTR_CT_STATE);
3543 SCAN_SINGLE("ct_zone(", uint16_t, u16, OVS_KEY_ATTR_CT_ZONE);
3544 SCAN_SINGLE("ct_mark(", uint32_t, u32, OVS_KEY_ATTR_CT_MARK);
3545 SCAN_SINGLE("ct_label(", ovs_u128, u128, OVS_KEY_ATTR_CT_LABELS);
3547 SCAN_BEGIN_NESTED("tunnel(", OVS_KEY_ATTR_TUNNEL) {
3548 SCAN_FIELD_NESTED("tun_id=", ovs_be64, be64, OVS_TUNNEL_KEY_ATTR_ID);
3549 SCAN_FIELD_NESTED("src=", ovs_be32, ipv4, OVS_TUNNEL_KEY_ATTR_IPV4_SRC);
3550 SCAN_FIELD_NESTED("dst=", ovs_be32, ipv4, OVS_TUNNEL_KEY_ATTR_IPV4_DST);
3551 SCAN_FIELD_NESTED("tos=", uint8_t, u8, OVS_TUNNEL_KEY_ATTR_TOS);
3552 SCAN_FIELD_NESTED("ttl=", uint8_t, u8, OVS_TUNNEL_KEY_ATTR_TTL);
3553 SCAN_FIELD_NESTED("tp_src=", ovs_be16, be16, OVS_TUNNEL_KEY_ATTR_TP_SRC);
3554 SCAN_FIELD_NESTED("tp_dst=", ovs_be16, be16, OVS_TUNNEL_KEY_ATTR_TP_DST);
3555 SCAN_FIELD_NESTED_FUNC("vxlan(gbp(", uint32_t, vxlan_gbp, vxlan_gbp_to_attr);
3556 SCAN_FIELD_NESTED_FUNC("geneve(", struct geneve_scan, geneve,
3558 SCAN_FIELD_NESTED_FUNC("flags(", uint16_t, tun_flags, tun_flags_to_attr);
3559 } SCAN_END_NESTED();
3561 SCAN_SINGLE_PORT("in_port(", uint32_t, OVS_KEY_ATTR_IN_PORT);
3563 SCAN_BEGIN("eth(", struct ovs_key_ethernet) {
3564 SCAN_FIELD("src=", eth, eth_src);
3565 SCAN_FIELD("dst=", eth, eth_dst);
3566 } SCAN_END(OVS_KEY_ATTR_ETHERNET);
3568 SCAN_BEGIN_INIT("vlan(", struct ovs_key_vlan__,
3569 { htons(VLAN_CFI) }, { htons(VLAN_CFI) }) {
3570 SCAN_FIELD("vid=", vid, tci);
3571 SCAN_FIELD("pcp=", pcp, tci);
3572 SCAN_FIELD("cfi=", cfi, tci);
3573 } SCAN_END(OVS_KEY_ATTR_VLAN);
3575 SCAN_SINGLE("eth_type(", ovs_be16, be16, OVS_KEY_ATTR_ETHERTYPE);
3577 SCAN_BEGIN("mpls(", struct ovs_key_mpls) {
3578 SCAN_FIELD("label=", mpls_label, mpls_lse);
3579 SCAN_FIELD("tc=", mpls_tc, mpls_lse);
3580 SCAN_FIELD("ttl=", mpls_ttl, mpls_lse);
3581 SCAN_FIELD("bos=", mpls_bos, mpls_lse);
3582 } SCAN_END(OVS_KEY_ATTR_MPLS);
3584 SCAN_BEGIN("ipv4(", struct ovs_key_ipv4) {
3585 SCAN_FIELD("src=", ipv4, ipv4_src);
3586 SCAN_FIELD("dst=", ipv4, ipv4_dst);
3587 SCAN_FIELD("proto=", u8, ipv4_proto);
3588 SCAN_FIELD("tos=", u8, ipv4_tos);
3589 SCAN_FIELD("ttl=", u8, ipv4_ttl);
3590 SCAN_FIELD("frag=", frag, ipv4_frag);
3591 } SCAN_END(OVS_KEY_ATTR_IPV4);
3593 SCAN_BEGIN("ipv6(", struct ovs_key_ipv6) {
3594 SCAN_FIELD("src=", ipv6, ipv6_src);
3595 SCAN_FIELD("dst=", ipv6, ipv6_dst);
3596 SCAN_FIELD("label=", ipv6_label, ipv6_label);
3597 SCAN_FIELD("proto=", u8, ipv6_proto);
3598 SCAN_FIELD("tclass=", u8, ipv6_tclass);
3599 SCAN_FIELD("hlimit=", u8, ipv6_hlimit);
3600 SCAN_FIELD("frag=", frag, ipv6_frag);
3601 } SCAN_END(OVS_KEY_ATTR_IPV6);
3603 SCAN_BEGIN("tcp(", struct ovs_key_tcp) {
3604 SCAN_FIELD("src=", be16, tcp_src);
3605 SCAN_FIELD("dst=", be16, tcp_dst);
3606 } SCAN_END(OVS_KEY_ATTR_TCP);
3608 SCAN_SINGLE("tcp_flags(", ovs_be16, tcp_flags, OVS_KEY_ATTR_TCP_FLAGS);
3610 SCAN_BEGIN("udp(", struct ovs_key_udp) {
3611 SCAN_FIELD("src=", be16, udp_src);
3612 SCAN_FIELD("dst=", be16, udp_dst);
3613 } SCAN_END(OVS_KEY_ATTR_UDP);
3615 SCAN_BEGIN("sctp(", struct ovs_key_sctp) {
3616 SCAN_FIELD("src=", be16, sctp_src);
3617 SCAN_FIELD("dst=", be16, sctp_dst);
3618 } SCAN_END(OVS_KEY_ATTR_SCTP);
3620 SCAN_BEGIN("icmp(", struct ovs_key_icmp) {
3621 SCAN_FIELD("type=", u8, icmp_type);
3622 SCAN_FIELD("code=", u8, icmp_code);
3623 } SCAN_END(OVS_KEY_ATTR_ICMP);
3625 SCAN_BEGIN("icmpv6(", struct ovs_key_icmpv6) {
3626 SCAN_FIELD("type=", u8, icmpv6_type);
3627 SCAN_FIELD("code=", u8, icmpv6_code);
3628 } SCAN_END(OVS_KEY_ATTR_ICMPV6);
3630 SCAN_BEGIN("arp(", struct ovs_key_arp) {
3631 SCAN_FIELD("sip=", ipv4, arp_sip);
3632 SCAN_FIELD("tip=", ipv4, arp_tip);
3633 SCAN_FIELD("op=", be16, arp_op);
3634 SCAN_FIELD("sha=", eth, arp_sha);
3635 SCAN_FIELD("tha=", eth, arp_tha);
3636 } SCAN_END(OVS_KEY_ATTR_ARP);
3638 SCAN_BEGIN("nd(", struct ovs_key_nd) {
3639 SCAN_FIELD("target=", ipv6, nd_target);
3640 SCAN_FIELD("sll=", eth, nd_sll);
3641 SCAN_FIELD("tll=", eth, nd_tll);
3642 } SCAN_END(OVS_KEY_ATTR_ND);
3644 /* Encap open-coded. */
3645 if (!strncmp(s, "encap(", 6)) {
3646 const char *start = s;
3647 size_t encap, encap_mask = 0;
3649 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
3651 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
3658 s += strspn(s, delimiters);
3661 } else if (*s == ')') {
3665 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
3673 nl_msg_end_nested(key, encap);
3675 nl_msg_end_nested(mask, encap_mask);
3684 /* Parses the string representation of a datapath flow key, in the
3685 * format output by odp_flow_key_format(). Returns 0 if successful,
3686 * otherwise a positive errno value. On success, the flow key is
3687 * appended to 'key' as a series of Netlink attributes. On failure, no
3688 * data is appended to 'key'. Either way, 'key''s data might be
3691 * If 'port_names' is nonnull, it points to an simap that maps from a port name
3692 * to a port number. (Port names may be used instead of port numbers in
3695 * On success, the attributes appended to 'key' are individually syntactically
3696 * valid, but they may not be valid as a sequence. 'key' might, for example,
3697 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
3699 odp_flow_from_string(const char *s, const struct simap *port_names,
3700 struct ofpbuf *key, struct ofpbuf *mask)
3702 const size_t old_size = key->size;
3706 s += strspn(s, delimiters);
3711 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
3713 key->size = old_size;
3723 ovs_to_odp_frag(uint8_t nw_frag, bool is_mask)
3726 /* Netlink interface 'enum ovs_frag_type' is an 8-bit enumeration type,
3727 * not a set of flags or bitfields. Hence, if the struct flow nw_frag
3728 * mask, which is a set of bits, has the FLOW_NW_FRAG_ANY as zero, we
3729 * must use a zero mask for the netlink frag field, and all ones mask
3731 return (nw_frag & FLOW_NW_FRAG_ANY) ? UINT8_MAX : 0;
3733 return !(nw_frag & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_NONE
3734 : nw_frag & FLOW_NW_FRAG_LATER ? OVS_FRAG_TYPE_LATER
3735 : OVS_FRAG_TYPE_FIRST;
3738 static void get_ethernet_key(const struct flow *, struct ovs_key_ethernet *);
3739 static void put_ethernet_key(const struct ovs_key_ethernet *, struct flow *);
3740 static void get_ipv4_key(const struct flow *, struct ovs_key_ipv4 *,
3742 static void put_ipv4_key(const struct ovs_key_ipv4 *, struct flow *,
3744 static void get_ipv6_key(const struct flow *, struct ovs_key_ipv6 *,
3746 static void put_ipv6_key(const struct ovs_key_ipv6 *, struct flow *,
3748 static void get_arp_key(const struct flow *, struct ovs_key_arp *);
3749 static void put_arp_key(const struct ovs_key_arp *, struct flow *);
3750 static void get_nd_key(const struct flow *, struct ovs_key_nd *);
3751 static void put_nd_key(const struct ovs_key_nd *, struct flow *);
3753 /* These share the same layout. */
3755 struct ovs_key_tcp tcp;
3756 struct ovs_key_udp udp;
3757 struct ovs_key_sctp sctp;
3760 static void get_tp_key(const struct flow *, union ovs_key_tp *);
3761 static void put_tp_key(const union ovs_key_tp *, struct flow *);
3764 odp_flow_key_from_flow__(const struct odp_flow_key_parms *parms,
3765 bool export_mask, struct ofpbuf *buf)
3767 struct ovs_key_ethernet *eth_key;
3769 const struct flow *flow = parms->flow;
3770 const struct flow *data = export_mask ? parms->mask : parms->flow;
3772 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
3774 if (flow->tunnel.ip_dst || export_mask) {
3775 tun_key_to_attr(buf, &data->tunnel, &parms->flow->tunnel,
3779 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
3781 if (parms->support.ct_state) {
3782 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_STATE,
3783 ovs_to_odp_ct_state(data->ct_state));
3785 if (parms->support.ct_zone) {
3786 nl_msg_put_u16(buf, OVS_KEY_ATTR_CT_ZONE, data->ct_zone);
3788 if (parms->support.ct_mark) {
3789 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_MARK, data->ct_mark);
3791 if (parms->support.ct_label) {
3792 nl_msg_put_unspec(buf, OVS_KEY_ATTR_CT_LABELS, &data->ct_label,
3793 sizeof(data->ct_label));
3795 if (parms->support.recirc) {
3796 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
3797 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
3800 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
3801 * is not the magical value "ODPP_NONE". */
3802 if (export_mask || parms->odp_in_port != ODPP_NONE) {
3803 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, parms->odp_in_port);
3806 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
3808 get_ethernet_key(data, eth_key);
3810 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
3812 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
3814 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
3816 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
3817 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
3818 if (flow->vlan_tci == htons(0)) {
3825 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
3826 /* For backwards compatibility with kernels that don't support
3827 * wildcarding, the following convention is used to encode the
3828 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
3831 * -------- -------- -------
3832 * >0x5ff 0xffff Specified Ethernet II Ethertype.
3833 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
3834 * <none> 0xffff Any non-Ethernet II frame (except valid
3835 * 802.3 SNAP packet with valid eth_type).
3838 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
3843 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
3845 if (flow->dl_type == htons(ETH_TYPE_IP)) {
3846 struct ovs_key_ipv4 *ipv4_key;
3848 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
3850 get_ipv4_key(data, ipv4_key, export_mask);
3851 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
3852 struct ovs_key_ipv6 *ipv6_key;
3854 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
3856 get_ipv6_key(data, ipv6_key, export_mask);
3857 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
3858 flow->dl_type == htons(ETH_TYPE_RARP)) {
3859 struct ovs_key_arp *arp_key;
3861 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
3863 get_arp_key(data, arp_key);
3864 } else if (eth_type_mpls(flow->dl_type)) {
3865 struct ovs_key_mpls *mpls_key;
3868 n = flow_count_mpls_labels(flow, NULL);
3870 n = MIN(n, parms->support.max_mpls_depth);
3872 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
3873 n * sizeof *mpls_key);
3874 for (i = 0; i < n; i++) {
3875 mpls_key[i].mpls_lse = data->mpls_lse[i];
3879 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3880 if (flow->nw_proto == IPPROTO_TCP) {
3881 union ovs_key_tp *tcp_key;
3883 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
3885 get_tp_key(data, tcp_key);
3886 if (data->tcp_flags) {
3887 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
3889 } else if (flow->nw_proto == IPPROTO_UDP) {
3890 union ovs_key_tp *udp_key;
3892 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
3894 get_tp_key(data, udp_key);
3895 } else if (flow->nw_proto == IPPROTO_SCTP) {
3896 union ovs_key_tp *sctp_key;
3898 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
3900 get_tp_key(data, sctp_key);
3901 } else if (flow->dl_type == htons(ETH_TYPE_IP)
3902 && flow->nw_proto == IPPROTO_ICMP) {
3903 struct ovs_key_icmp *icmp_key;
3905 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
3907 icmp_key->icmp_type = ntohs(data->tp_src);
3908 icmp_key->icmp_code = ntohs(data->tp_dst);
3909 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
3910 && flow->nw_proto == IPPROTO_ICMPV6) {
3911 struct ovs_key_icmpv6 *icmpv6_key;
3913 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
3914 sizeof *icmpv6_key);
3915 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
3916 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
3918 if (flow->tp_dst == htons(0)
3919 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
3920 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
3921 && (!export_mask || (data->tp_src == htons(0xffff)
3922 && data->tp_dst == htons(0xffff)))) {
3924 struct ovs_key_nd *nd_key;
3926 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
3928 memcpy(nd_key->nd_target, &data->nd_target,
3929 sizeof nd_key->nd_target);
3930 nd_key->nd_sll = data->arp_sha;
3931 nd_key->nd_tll = data->arp_tha;
3938 nl_msg_end_nested(buf, encap);
3942 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
3944 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
3945 * capable of being expanded to allow for that much space. */
3947 odp_flow_key_from_flow(const struct odp_flow_key_parms *parms,
3950 odp_flow_key_from_flow__(parms, false, buf);
3953 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
3956 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
3957 * capable of being expanded to allow for that much space. */
3959 odp_flow_key_from_mask(const struct odp_flow_key_parms *parms,
3962 odp_flow_key_from_flow__(parms, true, buf);
3965 /* Generate ODP flow key from the given packet metadata */
3967 odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
3969 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
3971 if (md->tunnel.ip_dst) {
3972 tun_key_to_attr(buf, &md->tunnel, &md->tunnel, NULL);
3975 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
3978 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_STATE,
3979 ovs_to_odp_ct_state(md->ct_state));
3981 nl_msg_put_u16(buf, OVS_KEY_ATTR_CT_ZONE, md->ct_zone);
3984 nl_msg_put_u32(buf, OVS_KEY_ATTR_CT_MARK, md->ct_mark);
3986 if (!ovs_u128_is_zero(&md->ct_label)) {
3987 nl_msg_put_unspec(buf, OVS_KEY_ATTR_CT_LABELS, &md->ct_label,
3988 sizeof(md->ct_label));
3992 /* Add an ingress port attribute if 'odp_in_port' is not the magical
3993 * value "ODPP_NONE". */
3994 if (md->in_port.odp_port != ODPP_NONE) {
3995 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
3999 /* Generate packet metadata from the given ODP flow key. */
4001 odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
4002 struct pkt_metadata *md)
4004 const struct nlattr *nla;
4006 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
4007 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
4008 1u << OVS_KEY_ATTR_IN_PORT;
4010 pkt_metadata_init(md, ODPP_NONE);
4012 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
4013 uint16_t type = nl_attr_type(nla);
4014 size_t len = nl_attr_get_size(nla);
4015 int expected_len = odp_key_attr_len(ovs_flow_key_attr_lens,
4016 OVS_KEY_ATTR_MAX, type);
4018 if (len != expected_len && expected_len >= 0) {
4023 case OVS_KEY_ATTR_RECIRC_ID:
4024 md->recirc_id = nl_attr_get_u32(nla);
4025 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
4027 case OVS_KEY_ATTR_DP_HASH:
4028 md->dp_hash = nl_attr_get_u32(nla);
4029 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
4031 case OVS_KEY_ATTR_PRIORITY:
4032 md->skb_priority = nl_attr_get_u32(nla);
4033 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
4035 case OVS_KEY_ATTR_SKB_MARK:
4036 md->pkt_mark = nl_attr_get_u32(nla);
4037 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
4039 case OVS_KEY_ATTR_CT_STATE:
4040 md->ct_state = odp_to_ovs_ct_state(nl_attr_get_u32(nla));
4041 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_STATE);
4043 case OVS_KEY_ATTR_CT_ZONE:
4044 md->ct_zone = nl_attr_get_u16(nla);
4045 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_ZONE);
4047 case OVS_KEY_ATTR_CT_MARK:
4048 md->ct_mark = nl_attr_get_u32(nla);
4049 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_MARK);
4051 case OVS_KEY_ATTR_CT_LABELS: {
4052 const ovs_u128 *cl = nl_attr_get(nla);
4055 wanted_attrs &= ~(1u << OVS_KEY_ATTR_CT_LABELS);
4058 case OVS_KEY_ATTR_TUNNEL: {
4059 enum odp_key_fitness res;
4061 res = odp_tun_key_from_attr(nla, true, &md->tunnel);
4062 if (res == ODP_FIT_ERROR) {
4063 memset(&md->tunnel, 0, sizeof md->tunnel);
4064 } else if (res == ODP_FIT_PERFECT) {
4065 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
4069 case OVS_KEY_ATTR_IN_PORT:
4070 md->in_port.odp_port = nl_attr_get_odp_port(nla);
4071 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
4077 if (!wanted_attrs) {
4078 return; /* Have everything. */
4084 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
4086 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
4087 return hash_words(ALIGNED_CAST(const uint32_t *, key),
4088 key_len / sizeof(uint32_t), 0);
4092 log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
4093 uint64_t attrs, int out_of_range_attr,
4094 const struct nlattr *key, size_t key_len)
4099 if (VLOG_DROP_DBG(rl)) {
4104 for (i = 0; i < 64; i++) {
4105 if (attrs & (UINT64_C(1) << i)) {
4106 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4108 ds_put_format(&s, " %s",
4109 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
4112 if (out_of_range_attr) {
4113 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
4116 ds_put_cstr(&s, ": ");
4117 odp_flow_key_format(key, key_len, &s);
4119 VLOG_DBG("%s:%s", title, ds_cstr(&s));
4124 odp_to_ovs_frag(uint8_t odp_frag, bool is_mask)
4126 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4129 return odp_frag ? FLOW_NW_FRAG_MASK : 0;
4132 if (odp_frag > OVS_FRAG_TYPE_LATER) {
4133 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
4134 return 0xff; /* Error. */
4137 return (odp_frag == OVS_FRAG_TYPE_NONE) ? 0
4138 : (odp_frag == OVS_FRAG_TYPE_FIRST) ? FLOW_NW_FRAG_ANY
4139 : FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER;
4143 parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
4144 const struct nlattr *attrs[], uint64_t *present_attrsp,
4145 int *out_of_range_attrp)
4147 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4148 const struct nlattr *nla;
4149 uint64_t present_attrs;
4152 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
4154 *out_of_range_attrp = 0;
4155 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
4156 uint16_t type = nl_attr_type(nla);
4157 size_t len = nl_attr_get_size(nla);
4158 int expected_len = odp_key_attr_len(ovs_flow_key_attr_lens,
4159 OVS_KEY_ATTR_MAX, type);
4161 if (len != expected_len && expected_len >= 0) {
4162 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4164 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
4165 "length %d", ovs_key_attr_to_string(type, namebuf,
4171 if (type > OVS_KEY_ATTR_MAX) {
4172 *out_of_range_attrp = type;
4174 if (present_attrs & (UINT64_C(1) << type)) {
4175 char namebuf[OVS_KEY_ATTR_BUFSIZE];
4177 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
4178 ovs_key_attr_to_string(type,
4179 namebuf, sizeof namebuf));
4183 present_attrs |= UINT64_C(1) << type;
4188 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
4192 *present_attrsp = present_attrs;
4196 static enum odp_key_fitness
4197 check_expectations(uint64_t present_attrs, int out_of_range_attr,
4198 uint64_t expected_attrs,
4199 const struct nlattr *key, size_t key_len)
4201 uint64_t missing_attrs;
4202 uint64_t extra_attrs;
4204 missing_attrs = expected_attrs & ~present_attrs;
4205 if (missing_attrs) {
4206 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4207 log_odp_key_attributes(&rl, "expected but not present",
4208 missing_attrs, 0, key, key_len);
4209 return ODP_FIT_TOO_LITTLE;
4212 extra_attrs = present_attrs & ~expected_attrs;
4213 if (extra_attrs || out_of_range_attr) {
4214 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
4215 log_odp_key_attributes(&rl, "present but not expected",
4216 extra_attrs, out_of_range_attr, key, key_len);
4217 return ODP_FIT_TOO_MUCH;
4220 return ODP_FIT_PERFECT;
4224 parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4225 uint64_t present_attrs, uint64_t *expected_attrs,
4226 struct flow *flow, const struct flow *src_flow)
4228 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4229 bool is_mask = flow != src_flow;
4231 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
4232 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
4233 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
4234 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
4235 ntohs(flow->dl_type));
4238 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
4239 flow->dl_type != htons(0xffff)) {
4242 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
4245 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
4246 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
4247 /* See comments in odp_flow_key_from_flow__(). */
4248 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
4255 static enum odp_key_fitness
4256 parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4257 uint64_t present_attrs, int out_of_range_attr,
4258 uint64_t expected_attrs, struct flow *flow,
4259 const struct nlattr *key, size_t key_len,
4260 const struct flow *src_flow)
4262 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4263 bool is_mask = src_flow != flow;
4264 const void *check_start = NULL;
4265 size_t check_len = 0;
4266 enum ovs_key_attr expected_bit = 0xff;
4268 if (eth_type_mpls(src_flow->dl_type)) {
4269 if (!is_mask || present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
4270 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
4272 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
4273 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
4274 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
4275 int n = size / sizeof(ovs_be32);
4278 if (!size || size % sizeof(ovs_be32)) {
4279 return ODP_FIT_ERROR;
4281 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
4282 return ODP_FIT_ERROR;
4285 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
4286 flow->mpls_lse[i] = mpls_lse[i];
4288 if (n > FLOW_MAX_MPLS_LABELS) {
4289 return ODP_FIT_TOO_MUCH;
4293 /* BOS may be set only in the innermost label. */
4294 for (i = 0; i < n - 1; i++) {
4295 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
4296 return ODP_FIT_ERROR;
4300 /* BOS must be set in the innermost label. */
4301 if (n < FLOW_MAX_MPLS_LABELS
4302 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
4303 return ODP_FIT_TOO_LITTLE;
4309 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
4311 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
4313 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
4314 const struct ovs_key_ipv4 *ipv4_key;
4316 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
4317 put_ipv4_key(ipv4_key, flow, is_mask);
4318 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
4319 return ODP_FIT_ERROR;
4322 check_start = ipv4_key;
4323 check_len = sizeof *ipv4_key;
4324 expected_bit = OVS_KEY_ATTR_IPV4;
4327 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
4329 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
4331 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
4332 const struct ovs_key_ipv6 *ipv6_key;
4334 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
4335 put_ipv6_key(ipv6_key, flow, is_mask);
4336 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
4337 return ODP_FIT_ERROR;
4340 check_start = ipv6_key;
4341 check_len = sizeof *ipv6_key;
4342 expected_bit = OVS_KEY_ATTR_IPV6;
4345 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
4346 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
4348 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
4350 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
4351 const struct ovs_key_arp *arp_key;
4353 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
4354 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
4355 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
4356 "key", ntohs(arp_key->arp_op));
4357 return ODP_FIT_ERROR;
4359 put_arp_key(arp_key, flow);
4361 check_start = arp_key;
4362 check_len = sizeof *arp_key;
4363 expected_bit = OVS_KEY_ATTR_ARP;
4369 if (check_len > 0) { /* Happens only when 'is_mask'. */
4370 if (!is_all_zeros(check_start, check_len) &&
4371 flow->dl_type != htons(0xffff)) {
4372 return ODP_FIT_ERROR;
4374 expected_attrs |= UINT64_C(1) << expected_bit;
4378 expected_bit = OVS_KEY_ATTR_UNSPEC;
4379 if (src_flow->nw_proto == IPPROTO_TCP
4380 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4381 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4382 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4384 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
4386 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
4387 const union ovs_key_tp *tcp_key;
4389 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
4390 put_tp_key(tcp_key, flow);
4391 expected_bit = OVS_KEY_ATTR_TCP;
4393 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
4394 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
4395 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
4397 } else if (src_flow->nw_proto == IPPROTO_UDP
4398 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4399 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4400 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4402 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
4404 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
4405 const union ovs_key_tp *udp_key;
4407 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
4408 put_tp_key(udp_key, flow);
4409 expected_bit = OVS_KEY_ATTR_UDP;
4411 } else if (src_flow->nw_proto == IPPROTO_SCTP
4412 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
4413 src_flow->dl_type == htons(ETH_TYPE_IPV6))
4414 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4416 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
4418 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
4419 const union ovs_key_tp *sctp_key;
4421 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
4422 put_tp_key(sctp_key, flow);
4423 expected_bit = OVS_KEY_ATTR_SCTP;
4425 } else if (src_flow->nw_proto == IPPROTO_ICMP
4426 && src_flow->dl_type == htons(ETH_TYPE_IP)
4427 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4429 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
4431 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
4432 const struct ovs_key_icmp *icmp_key;
4434 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
4435 flow->tp_src = htons(icmp_key->icmp_type);
4436 flow->tp_dst = htons(icmp_key->icmp_code);
4437 expected_bit = OVS_KEY_ATTR_ICMP;
4439 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
4440 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
4441 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
4443 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
4445 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
4446 const struct ovs_key_icmpv6 *icmpv6_key;
4448 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
4449 flow->tp_src = htons(icmpv6_key->icmpv6_type);
4450 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
4451 expected_bit = OVS_KEY_ATTR_ICMPV6;
4452 if (src_flow->tp_dst == htons(0) &&
4453 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
4454 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
4456 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
4458 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
4459 const struct ovs_key_nd *nd_key;
4461 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
4462 memcpy(&flow->nd_target, nd_key->nd_target,
4463 sizeof flow->nd_target);
4464 flow->arp_sha = nd_key->nd_sll;
4465 flow->arp_tha = nd_key->nd_tll;
4467 if (!is_all_zeros(nd_key, sizeof *nd_key) &&
4468 (flow->tp_src != htons(0xffff) ||
4469 flow->tp_dst != htons(0xffff))) {
4470 return ODP_FIT_ERROR;
4472 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
4479 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
4480 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
4481 return ODP_FIT_ERROR;
4483 expected_attrs |= UINT64_C(1) << expected_bit;
4488 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
4492 /* Parse 802.1Q header then encapsulated L3 attributes. */
4493 static enum odp_key_fitness
4494 parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
4495 uint64_t present_attrs, int out_of_range_attr,
4496 uint64_t expected_attrs, struct flow *flow,
4497 const struct nlattr *key, size_t key_len,
4498 const struct flow *src_flow)
4500 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4501 bool is_mask = src_flow != flow;
4503 const struct nlattr *encap
4504 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
4505 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
4506 enum odp_key_fitness encap_fitness;
4507 enum odp_key_fitness fitness;
4509 /* Calculate fitness of outer attributes. */
4511 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
4512 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
4514 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
4515 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
4517 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
4518 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
4521 fitness = check_expectations(present_attrs, out_of_range_attr,
4522 expected_attrs, key, key_len);
4525 * Remove the TPID from dl_type since it's not the real Ethertype. */
4526 flow->dl_type = htons(0);
4527 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
4528 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
4531 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
4532 return ODP_FIT_TOO_LITTLE;
4533 } else if (flow->vlan_tci == htons(0)) {
4534 /* Corner case for a truncated 802.1Q header. */
4535 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
4536 return ODP_FIT_TOO_MUCH;
4539 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
4540 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
4541 "but CFI bit is not set", ntohs(flow->vlan_tci));
4542 return ODP_FIT_ERROR;
4545 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
4550 /* Now parse the encapsulated attributes. */
4551 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
4552 attrs, &present_attrs, &out_of_range_attr)) {
4553 return ODP_FIT_ERROR;
4557 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
4558 return ODP_FIT_ERROR;
4560 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4561 expected_attrs, flow, key, key_len,
4564 /* The overall fitness is the worse of the outer and inner attributes. */
4565 return MAX(fitness, encap_fitness);
4568 static enum odp_key_fitness
4569 odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
4570 const struct nlattr *src_key, size_t src_key_len,
4571 struct flow *flow, const struct flow *src_flow,
4574 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
4575 uint64_t expected_attrs;
4576 uint64_t present_attrs;
4577 int out_of_range_attr;
4578 bool is_mask = src_flow != flow;
4580 memset(flow, 0, sizeof *flow);
4582 /* Parse attributes. */
4583 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
4584 &out_of_range_attr)) {
4585 return ODP_FIT_ERROR;
4590 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
4591 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
4592 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
4593 } else if (is_mask) {
4594 /* Always exact match recirc_id if it is not specified. */
4595 flow->recirc_id = UINT32_MAX;
4598 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
4599 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
4600 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
4602 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
4603 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
4604 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
4607 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
4608 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
4609 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
4612 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_STATE)) {
4613 uint32_t odp_state = nl_attr_get_u32(attrs[OVS_KEY_ATTR_CT_STATE]);
4615 flow->ct_state = odp_to_ovs_ct_state(odp_state);
4616 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_STATE;
4618 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_ZONE)) {
4619 flow->ct_zone = nl_attr_get_u16(attrs[OVS_KEY_ATTR_CT_ZONE]);
4620 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_ZONE;
4622 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_MARK)) {
4623 flow->ct_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_CT_MARK]);
4624 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_MARK;
4626 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_CT_LABELS)) {
4627 const ovs_u128 *cl = nl_attr_get(attrs[OVS_KEY_ATTR_CT_LABELS]);
4629 flow->ct_label = *cl;
4630 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_CT_LABELS;
4633 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
4634 enum odp_key_fitness res;
4636 res = odp_tun_key_from_attr__(attrs[OVS_KEY_ATTR_TUNNEL],
4637 is_mask ? src_key : NULL,
4638 src_key_len, &src_flow->tunnel,
4639 &flow->tunnel, udpif);
4640 if (res == ODP_FIT_ERROR) {
4641 return ODP_FIT_ERROR;
4642 } else if (res == ODP_FIT_PERFECT) {
4643 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
4647 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
4648 flow->in_port.odp_port
4649 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
4650 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
4651 } else if (!is_mask) {
4652 flow->in_port.odp_port = ODPP_NONE;
4655 /* Ethernet header. */
4656 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
4657 const struct ovs_key_ethernet *eth_key;
4659 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
4660 put_ethernet_key(eth_key, flow);
4662 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
4666 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
4669 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
4670 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
4672 return ODP_FIT_ERROR;
4676 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
4677 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
4678 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
4679 expected_attrs, flow, key, key_len, src_flow);
4682 /* A missing VLAN mask means exact match on vlan_tci 0 (== no VLAN). */
4683 flow->vlan_tci = htons(0xffff);
4684 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
4685 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
4686 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
4689 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4690 expected_attrs, flow, key, key_len, src_flow);
4693 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
4694 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
4695 * 'key' fits our expectations for what a flow key should contain.
4697 * The 'in_port' will be the datapath's understanding of the port. The
4698 * caller will need to translate with odp_port_to_ofp_port() if the
4699 * OpenFlow port is needed.
4701 * This function doesn't take the packet itself as an argument because none of
4702 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
4703 * it is always possible to infer which additional attribute(s) should appear
4704 * by looking at the attributes for lower-level protocols, e.g. if the network
4705 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
4706 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
4707 * must be absent. */
4708 enum odp_key_fitness
4709 odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
4712 return odp_flow_key_to_flow__(key, key_len, NULL, 0, flow, flow, false);
4715 /* Converts the 'mask_key_len' bytes of OVS_KEY_ATTR_* attributes in 'mask_key'
4716 * to a mask structure in 'mask'. 'flow' must be a previously translated flow
4717 * corresponding to 'mask' and similarly flow_key/flow_key_len must be the
4718 * attributes from that flow. Returns an ODP_FIT_* value that indicates how
4719 * well 'key' fits our expectations for what a flow key should contain. */
4720 enum odp_key_fitness
4721 odp_flow_key_to_mask(const struct nlattr *mask_key, size_t mask_key_len,
4722 const struct nlattr *flow_key, size_t flow_key_len,
4723 struct flow *mask, const struct flow *flow)
4725 return odp_flow_key_to_flow__(mask_key, mask_key_len, flow_key, flow_key_len,
4729 /* These functions are similar to their non-"_udpif" variants but output a
4730 * 'flow' that is suitable for fast-path packet processing.
4732 * Some fields have different representation for flow setup and per-
4733 * packet processing (i.e. different between ofproto-dpif and userspace
4734 * datapath). In particular, with the non-"_udpif" functions, struct
4735 * tun_metadata is in the per-flow format (using 'present.map' and 'opts.u8');
4736 * with these functions, struct tun_metadata is in the per-packet format
4737 * (using 'present.len' and 'opts.gnv'). */
4738 enum odp_key_fitness
4739 odp_flow_key_to_flow_udpif(const struct nlattr *key, size_t key_len,
4742 return odp_flow_key_to_flow__(key, key_len, NULL, 0, flow, flow, true);
4745 enum odp_key_fitness
4746 odp_flow_key_to_mask_udpif(const struct nlattr *mask_key, size_t mask_key_len,
4747 const struct nlattr *flow_key, size_t flow_key_len,
4748 struct flow *mask, const struct flow *flow)
4750 return odp_flow_key_to_flow__(mask_key, mask_key_len, flow_key, flow_key_len,
4754 /* Returns 'fitness' as a string, for use in debug messages. */
4756 odp_key_fitness_to_string(enum odp_key_fitness fitness)
4759 case ODP_FIT_PERFECT:
4761 case ODP_FIT_TOO_MUCH:
4763 case ODP_FIT_TOO_LITTLE:
4764 return "too_little";
4772 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
4773 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
4774 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
4775 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
4776 * null, then the return value is not meaningful.) */
4778 odp_put_userspace_action(uint32_t pid,
4779 const void *userdata, size_t userdata_size,
4780 odp_port_t tunnel_out_port,
4781 bool include_actions,
4782 struct ofpbuf *odp_actions)
4784 size_t userdata_ofs;
4787 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
4788 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
4790 userdata_ofs = odp_actions->size + NLA_HDRLEN;
4792 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
4793 * module before Linux 3.10 required the userdata to be exactly 8 bytes
4796 * - The kernel rejected shorter userdata with -ERANGE.
4798 * - The kernel silently dropped userdata beyond the first 8 bytes.
4800 * Thus, for maximum compatibility, always put at least 8 bytes. (We
4801 * separately disable features that required more than 8 bytes.) */
4802 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
4803 MAX(8, userdata_size)),
4804 userdata, userdata_size);
4808 if (tunnel_out_port != ODPP_NONE) {
4809 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
4812 if (include_actions) {
4813 nl_msg_put_flag(odp_actions, OVS_USERSPACE_ATTR_ACTIONS);
4815 nl_msg_end_nested(odp_actions, offset);
4817 return userdata_ofs;
4821 odp_put_tunnel_action(const struct flow_tnl *tunnel,
4822 struct ofpbuf *odp_actions)
4824 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
4825 tun_key_to_attr(odp_actions, tunnel, tunnel, NULL);
4826 nl_msg_end_nested(odp_actions, offset);
4830 odp_put_tnl_push_action(struct ofpbuf *odp_actions,
4831 struct ovs_action_push_tnl *data)
4833 int size = offsetof(struct ovs_action_push_tnl, header);
4835 size += data->header_len;
4836 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_TUNNEL_PUSH, data, size);
4840 /* The commit_odp_actions() function and its helpers. */
4843 commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
4844 const void *key, size_t key_size)
4846 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
4847 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
4848 nl_msg_end_nested(odp_actions, offset);
4851 /* Masked set actions have a mask following the data within the netlink
4852 * attribute. The unmasked bits in the data will be cleared as the data
4853 * is copied to the action. */
4855 commit_masked_set_action(struct ofpbuf *odp_actions,
4856 enum ovs_key_attr key_type,
4857 const void *key_, const void *mask_, size_t key_size)
4859 size_t offset = nl_msg_start_nested(odp_actions,
4860 OVS_ACTION_ATTR_SET_MASKED);
4861 char *data = nl_msg_put_unspec_uninit(odp_actions, key_type, key_size * 2);
4862 const char *key = key_, *mask = mask_;
4864 memcpy(data + key_size, mask, key_size);
4865 /* Clear unmasked bits while copying. */
4866 while (key_size--) {
4867 *data++ = *key++ & *mask++;
4869 nl_msg_end_nested(odp_actions, offset);
4872 /* If any of the flow key data that ODP actions can modify are different in
4873 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
4874 * 'odp_actions' that change the flow tunneling information in key from
4875 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
4876 * same way. In other words, operates the same as commit_odp_actions(), but
4877 * only on tunneling information. */
4879 commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
4880 struct ofpbuf *odp_actions)
4882 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
4883 if (flow->tunnel.ip_dst) {
4884 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
4887 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
4888 odp_put_tunnel_action(&base->tunnel, odp_actions);
4893 commit(enum ovs_key_attr attr, bool use_masked_set,
4894 const void *key, void *base, void *mask, size_t size,
4895 struct ofpbuf *odp_actions)
4897 if (memcmp(key, base, size)) {
4898 bool fully_masked = odp_mask_is_exact(attr, mask, size);
4900 if (use_masked_set && !fully_masked) {
4901 commit_masked_set_action(odp_actions, attr, key, mask, size);
4903 if (!fully_masked) {
4904 memset(mask, 0xff, size);
4906 commit_set_action(odp_actions, attr, key, size);
4908 memcpy(base, key, size);
4911 /* Mask bits are set when we have either read or set the corresponding
4912 * values. Masked bits will be exact-matched, no need to set them
4913 * if the value did not actually change. */
4919 get_ethernet_key(const struct flow *flow, struct ovs_key_ethernet *eth)
4921 eth->eth_src = flow->dl_src;
4922 eth->eth_dst = flow->dl_dst;
4926 put_ethernet_key(const struct ovs_key_ethernet *eth, struct flow *flow)
4928 flow->dl_src = eth->eth_src;
4929 flow->dl_dst = eth->eth_dst;
4933 commit_set_ether_addr_action(const struct flow *flow, struct flow *base_flow,
4934 struct ofpbuf *odp_actions,
4935 struct flow_wildcards *wc,
4938 struct ovs_key_ethernet key, base, mask;
4940 get_ethernet_key(flow, &key);
4941 get_ethernet_key(base_flow, &base);
4942 get_ethernet_key(&wc->masks, &mask);
4944 if (commit(OVS_KEY_ATTR_ETHERNET, use_masked,
4945 &key, &base, &mask, sizeof key, odp_actions)) {
4946 put_ethernet_key(&base, base_flow);
4947 put_ethernet_key(&mask, &wc->masks);
4952 pop_vlan(struct flow *base,
4953 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4955 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
4957 if (base->vlan_tci & htons(VLAN_CFI)) {
4958 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
4964 commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
4965 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4967 if (base->vlan_tci == vlan_tci) {
4971 pop_vlan(base, odp_actions, wc);
4972 if (vlan_tci & htons(VLAN_CFI)) {
4973 struct ovs_action_push_vlan vlan;
4975 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
4976 vlan.vlan_tci = vlan_tci;
4977 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
4978 &vlan, sizeof vlan);
4980 base->vlan_tci = vlan_tci;
4983 /* Wildcarding already done at action translation time. */
4985 commit_mpls_action(const struct flow *flow, struct flow *base,
4986 struct ofpbuf *odp_actions)
4988 int base_n = flow_count_mpls_labels(base, NULL);
4989 int flow_n = flow_count_mpls_labels(flow, NULL);
4990 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
4993 while (base_n > common_n) {
4994 if (base_n - 1 == common_n && flow_n > common_n) {
4995 /* If there is only one more LSE in base than there are common
4996 * between base and flow; and flow has at least one more LSE than
4997 * is common then the topmost LSE of base may be updated using
4999 struct ovs_key_mpls mpls_key;
5001 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
5002 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
5003 &mpls_key, sizeof mpls_key);
5004 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
5007 /* Otherwise, if there more LSEs in base than are common between
5008 * base and flow then pop the topmost one. */
5012 /* If all the LSEs are to be popped and this is not the outermost
5013 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
5014 * POP_MPLS action instead of flow->dl_type.
5016 * This is because the POP_MPLS action requires its ethertype
5017 * argument to be an MPLS ethernet type but in this case
5018 * flow->dl_type will be a non-MPLS ethernet type.
5020 * When the final POP_MPLS action occurs it use flow->dl_type and
5021 * the and the resulting packet will have the desired dl_type. */
5022 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
5023 dl_type = htons(ETH_TYPE_MPLS);
5025 dl_type = flow->dl_type;
5027 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
5028 popped = flow_pop_mpls(base, base_n, flow->dl_type, NULL);
5034 /* If, after the above popping and setting, there are more LSEs in flow
5035 * than base then some LSEs need to be pushed. */
5036 while (base_n < flow_n) {
5037 struct ovs_action_push_mpls *mpls;
5039 mpls = nl_msg_put_unspec_zero(odp_actions,
5040 OVS_ACTION_ATTR_PUSH_MPLS,
5042 mpls->mpls_ethertype = flow->dl_type;
5043 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
5044 flow_push_mpls(base, base_n, mpls->mpls_ethertype, NULL);
5045 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
5051 get_ipv4_key(const struct flow *flow, struct ovs_key_ipv4 *ipv4, bool is_mask)
5053 ipv4->ipv4_src = flow->nw_src;
5054 ipv4->ipv4_dst = flow->nw_dst;
5055 ipv4->ipv4_proto = flow->nw_proto;
5056 ipv4->ipv4_tos = flow->nw_tos;
5057 ipv4->ipv4_ttl = flow->nw_ttl;
5058 ipv4->ipv4_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
5062 put_ipv4_key(const struct ovs_key_ipv4 *ipv4, struct flow *flow, bool is_mask)
5064 flow->nw_src = ipv4->ipv4_src;
5065 flow->nw_dst = ipv4->ipv4_dst;
5066 flow->nw_proto = ipv4->ipv4_proto;
5067 flow->nw_tos = ipv4->ipv4_tos;
5068 flow->nw_ttl = ipv4->ipv4_ttl;
5069 flow->nw_frag = odp_to_ovs_frag(ipv4->ipv4_frag, is_mask);
5073 commit_set_ipv4_action(const struct flow *flow, struct flow *base_flow,
5074 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5077 struct ovs_key_ipv4 key, mask, base;
5079 /* Check that nw_proto and nw_frag remain unchanged. */
5080 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
5081 flow->nw_frag == base_flow->nw_frag);
5083 get_ipv4_key(flow, &key, false);
5084 get_ipv4_key(base_flow, &base, false);
5085 get_ipv4_key(&wc->masks, &mask, true);
5086 mask.ipv4_proto = 0; /* Not writeable. */
5087 mask.ipv4_frag = 0; /* Not writable. */
5089 if (commit(OVS_KEY_ATTR_IPV4, use_masked, &key, &base, &mask, sizeof key,
5091 put_ipv4_key(&base, base_flow, false);
5092 if (mask.ipv4_proto != 0) { /* Mask was changed by commit(). */
5093 put_ipv4_key(&mask, &wc->masks, true);
5099 get_ipv6_key(const struct flow *flow, struct ovs_key_ipv6 *ipv6, bool is_mask)
5101 memcpy(ipv6->ipv6_src, &flow->ipv6_src, sizeof ipv6->ipv6_src);
5102 memcpy(ipv6->ipv6_dst, &flow->ipv6_dst, sizeof ipv6->ipv6_dst);
5103 ipv6->ipv6_label = flow->ipv6_label;
5104 ipv6->ipv6_proto = flow->nw_proto;
5105 ipv6->ipv6_tclass = flow->nw_tos;
5106 ipv6->ipv6_hlimit = flow->nw_ttl;
5107 ipv6->ipv6_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
5111 put_ipv6_key(const struct ovs_key_ipv6 *ipv6, struct flow *flow, bool is_mask)
5113 memcpy(&flow->ipv6_src, ipv6->ipv6_src, sizeof flow->ipv6_src);
5114 memcpy(&flow->ipv6_dst, ipv6->ipv6_dst, sizeof flow->ipv6_dst);
5115 flow->ipv6_label = ipv6->ipv6_label;
5116 flow->nw_proto = ipv6->ipv6_proto;
5117 flow->nw_tos = ipv6->ipv6_tclass;
5118 flow->nw_ttl = ipv6->ipv6_hlimit;
5119 flow->nw_frag = odp_to_ovs_frag(ipv6->ipv6_frag, is_mask);
5123 commit_set_ipv6_action(const struct flow *flow, struct flow *base_flow,
5124 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5127 struct ovs_key_ipv6 key, mask, base;
5129 /* Check that nw_proto and nw_frag remain unchanged. */
5130 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
5131 flow->nw_frag == base_flow->nw_frag);
5133 get_ipv6_key(flow, &key, false);
5134 get_ipv6_key(base_flow, &base, false);
5135 get_ipv6_key(&wc->masks, &mask, true);
5136 mask.ipv6_proto = 0; /* Not writeable. */
5137 mask.ipv6_frag = 0; /* Not writable. */
5139 if (commit(OVS_KEY_ATTR_IPV6, use_masked, &key, &base, &mask, sizeof key,
5141 put_ipv6_key(&base, base_flow, false);
5142 if (mask.ipv6_proto != 0) { /* Mask was changed by commit(). */
5143 put_ipv6_key(&mask, &wc->masks, true);
5149 get_arp_key(const struct flow *flow, struct ovs_key_arp *arp)
5151 /* ARP key has padding, clear it. */
5152 memset(arp, 0, sizeof *arp);
5154 arp->arp_sip = flow->nw_src;
5155 arp->arp_tip = flow->nw_dst;
5156 arp->arp_op = htons(flow->nw_proto);
5157 arp->arp_sha = flow->arp_sha;
5158 arp->arp_tha = flow->arp_tha;
5162 put_arp_key(const struct ovs_key_arp *arp, struct flow *flow)
5164 flow->nw_src = arp->arp_sip;
5165 flow->nw_dst = arp->arp_tip;
5166 flow->nw_proto = ntohs(arp->arp_op);
5167 flow->arp_sha = arp->arp_sha;
5168 flow->arp_tha = arp->arp_tha;
5171 static enum slow_path_reason
5172 commit_set_arp_action(const struct flow *flow, struct flow *base_flow,
5173 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5175 struct ovs_key_arp key, mask, base;
5177 get_arp_key(flow, &key);
5178 get_arp_key(base_flow, &base);
5179 get_arp_key(&wc->masks, &mask);
5181 if (commit(OVS_KEY_ATTR_ARP, true, &key, &base, &mask, sizeof key,
5183 put_arp_key(&base, base_flow);
5184 put_arp_key(&mask, &wc->masks);
5191 get_nd_key(const struct flow *flow, struct ovs_key_nd *nd)
5193 memcpy(nd->nd_target, &flow->nd_target, sizeof flow->nd_target);
5194 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
5195 nd->nd_sll = flow->arp_sha;
5196 nd->nd_tll = flow->arp_tha;
5200 put_nd_key(const struct ovs_key_nd *nd, struct flow *flow)
5202 memcpy(&flow->nd_target, nd->nd_target, sizeof flow->nd_target);
5203 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
5204 flow->arp_sha = nd->nd_sll;
5205 flow->arp_tha = nd->nd_tll;
5208 static enum slow_path_reason
5209 commit_set_nd_action(const struct flow *flow, struct flow *base_flow,
5210 struct ofpbuf *odp_actions,
5211 struct flow_wildcards *wc, bool use_masked)
5213 struct ovs_key_nd key, mask, base;
5215 get_nd_key(flow, &key);
5216 get_nd_key(base_flow, &base);
5217 get_nd_key(&wc->masks, &mask);
5219 if (commit(OVS_KEY_ATTR_ND, use_masked, &key, &base, &mask, sizeof key,
5221 put_nd_key(&base, base_flow);
5222 put_nd_key(&mask, &wc->masks);
5229 static enum slow_path_reason
5230 commit_set_nw_action(const struct flow *flow, struct flow *base,
5231 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5234 /* Check if 'flow' really has an L3 header. */
5235 if (!flow->nw_proto) {
5239 switch (ntohs(base->dl_type)) {
5241 commit_set_ipv4_action(flow, base, odp_actions, wc, use_masked);
5245 commit_set_ipv6_action(flow, base, odp_actions, wc, use_masked);
5246 return commit_set_nd_action(flow, base, odp_actions, wc, use_masked);
5249 return commit_set_arp_action(flow, base, odp_actions, wc);
5255 /* TCP, UDP, and SCTP keys have the same layout. */
5256 BUILD_ASSERT_DECL(sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_udp) &&
5257 sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_sctp));
5260 get_tp_key(const struct flow *flow, union ovs_key_tp *tp)
5262 tp->tcp.tcp_src = flow->tp_src;
5263 tp->tcp.tcp_dst = flow->tp_dst;
5267 put_tp_key(const union ovs_key_tp *tp, struct flow *flow)
5269 flow->tp_src = tp->tcp.tcp_src;
5270 flow->tp_dst = tp->tcp.tcp_dst;
5274 commit_set_port_action(const struct flow *flow, struct flow *base_flow,
5275 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5278 enum ovs_key_attr key_type;
5279 union ovs_key_tp key, mask, base;
5281 /* Check if 'flow' really has an L3 header. */
5282 if (!flow->nw_proto) {
5286 if (!is_ip_any(base_flow)) {
5290 if (flow->nw_proto == IPPROTO_TCP) {
5291 key_type = OVS_KEY_ATTR_TCP;
5292 } else if (flow->nw_proto == IPPROTO_UDP) {
5293 key_type = OVS_KEY_ATTR_UDP;
5294 } else if (flow->nw_proto == IPPROTO_SCTP) {
5295 key_type = OVS_KEY_ATTR_SCTP;
5300 get_tp_key(flow, &key);
5301 get_tp_key(base_flow, &base);
5302 get_tp_key(&wc->masks, &mask);
5304 if (commit(key_type, use_masked, &key, &base, &mask, sizeof key,
5306 put_tp_key(&base, base_flow);
5307 put_tp_key(&mask, &wc->masks);
5312 commit_set_priority_action(const struct flow *flow, struct flow *base_flow,
5313 struct ofpbuf *odp_actions,
5314 struct flow_wildcards *wc,
5317 uint32_t key, mask, base;
5319 key = flow->skb_priority;
5320 base = base_flow->skb_priority;
5321 mask = wc->masks.skb_priority;
5323 if (commit(OVS_KEY_ATTR_PRIORITY, use_masked, &key, &base, &mask,
5324 sizeof key, odp_actions)) {
5325 base_flow->skb_priority = base;
5326 wc->masks.skb_priority = mask;
5331 commit_set_pkt_mark_action(const struct flow *flow, struct flow *base_flow,
5332 struct ofpbuf *odp_actions,
5333 struct flow_wildcards *wc,
5336 uint32_t key, mask, base;
5338 key = flow->pkt_mark;
5339 base = base_flow->pkt_mark;
5340 mask = wc->masks.pkt_mark;
5342 if (commit(OVS_KEY_ATTR_SKB_MARK, use_masked, &key, &base, &mask,
5343 sizeof key, odp_actions)) {
5344 base_flow->pkt_mark = base;
5345 wc->masks.pkt_mark = mask;
5349 /* If any of the flow key data that ODP actions can modify are different in
5350 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
5351 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
5352 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
5353 * in addition to this function if needed. Sets fields in 'wc' that are
5354 * used as part of the action.
5356 * Returns a reason to force processing the flow's packets into the userspace
5357 * slow path, if there is one, otherwise 0. */
5358 enum slow_path_reason
5359 commit_odp_actions(const struct flow *flow, struct flow *base,
5360 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
5363 enum slow_path_reason slow;
5365 commit_set_ether_addr_action(flow, base, odp_actions, wc, use_masked);
5366 slow = commit_set_nw_action(flow, base, odp_actions, wc, use_masked);
5367 commit_set_port_action(flow, base, odp_actions, wc, use_masked);
5368 commit_mpls_action(flow, base, odp_actions);
5369 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
5370 commit_set_priority_action(flow, base, odp_actions, wc, use_masked);
5371 commit_set_pkt_mark_action(flow, base, odp_actions, wc, use_masked);