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ofproto-dpif: Fix build failure.
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064af421 1/*
8bfd0fda 2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
064af421 3 *
a14bc59f
BP		 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:
064af421 7 *
a14bc59f
BP		 8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
064af421
BP		 15 */
16
17#include <config.h>
bed69b3e 18#include <arpa/inet.h>
064af421 19#include "odp-util.h"
36956a7d 20#include <errno.h>
064af421 21#include <inttypes.h>
7202cbe5 22#include <math.h>
6ca00f6f 23#include <netinet/in.h>
685a51a5 24#include <netinet/icmp6.h>
064af421
BP		 25#include <stdlib.h>
26#include <string.h>
a36de779 27
cdee00fd 28#include "byte-order.h"
064af421 29#include "coverage.h"
758c456d 30#include "dpif.h"
064af421
BP		 31#include "dynamic-string.h"
32#include "flow.h"
cdee00fd 33#include "netlink.h"
3bffc610 34#include "ofpbuf.h"
064af421 35#include "packets.h"
44bac24b 36#include "simap.h"
064af421 37#include "timeval.h"
a36de779 38#include "unaligned.h"
064af421 39#include "util.h"
e6211adc 40#include "openvswitch/vlog.h"
34118cae
BP		 41
42VLOG_DEFINE_THIS_MODULE(odp_util);
064af421 43
df2c07f4
JP		 44/* The interface between userspace and kernel uses an "OVS_*" prefix.
45 * Since this is fairly non-specific for the OVS userspace components,
46 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
47 * interactions with the datapath.
48 */
49
7202cbe5
BP		 50/* The set of characters that may separate one action or one key attribute
51 * from another. */
52static const char *delimiters = ", \t\r\n";
53
e6cc0bab
AZ		 54static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
55 struct ofpbuf *, struct ofpbuf *);
56static void format_odp_key_attr(const struct nlattr *a,
0a37839c
GS		 57 const struct nlattr *ma,
58 const struct hmap *portno_names, struct ds *ds,
041e7168 59 bool verbose);
a052b51b 60
98403001
BP		 61/* Returns one the following for the action with the given OVS_ACTION_ATTR_*
62 * 'type':
63 *
64 * - For an action whose argument has a fixed length, returned that
65 * nonnegative length in bytes.
66 *
67 * - For an action with a variable-length argument, returns -2.
68 *
69 * - For an invalid 'type', returns -1. */
4edb9ae9 70static int
cdee00fd
BP		 71odp_action_len(uint16_t type)
72{
df2c07f4 73 if (type > OVS_ACTION_ATTR_MAX) {
cdee00fd
BP		 74 return -1;
75 }
76
09ded0ad 77 switch ((enum ovs_action_attr) type) {
fea393b1 78 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
a36de779
PS		 79 case OVS_ACTION_ATTR_TUNNEL_PUSH: return -2;
80 case OVS_ACTION_ATTR_TUNNEL_POP: return sizeof(uint32_t);
98403001 81 case OVS_ACTION_ATTR_USERSPACE: return -2;
fea393b1
BP		 82 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
83 case OVS_ACTION_ATTR_POP_VLAN: return 0;
b02475c5
SH		 84 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
85 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
347bf289
AZ		 86 case OVS_ACTION_ATTR_RECIRC: return sizeof(uint32_t);
87 case OVS_ACTION_ATTR_HASH: return sizeof(struct ovs_action_hash);
4edb9ae9 88 case OVS_ACTION_ATTR_SET: return -2;
6d670e7f 89 case OVS_ACTION_ATTR_SET_MASKED: return -2;
98403001 90 case OVS_ACTION_ATTR_SAMPLE: return -2;
df2c07f4
JP		 91
92 case OVS_ACTION_ATTR_UNSPEC:
93 case __OVS_ACTION_ATTR_MAX:
cdee00fd
BP		 94 return -1;
95 }
96
97 return -1;
98}
99
e6603631
BP		 100/* Returns a string form of 'attr'. The return value is either a statically
101 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
102 * should be at least OVS_KEY_ATTR_BUFSIZE. */
103enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
744791b5 104static const char *
e6603631 105ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
744791b5 106{
744791b5
BP		 107 switch (attr) {
108 case OVS_KEY_ATTR_UNSPEC: return "unspec";
fea393b1 109 case OVS_KEY_ATTR_ENCAP: return "encap";
1b567fb9 110 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
72e8bf28 111 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
9b405f1a 112 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
744791b5
BP		 113 case OVS_KEY_ATTR_IN_PORT: return "in_port";
114 case OVS_KEY_ATTR_ETHERNET: return "eth";
fea393b1 115 case OVS_KEY_ATTR_VLAN: return "vlan";
744791b5
BP		 116 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
117 case OVS_KEY_ATTR_IPV4: return "ipv4";
118 case OVS_KEY_ATTR_IPV6: return "ipv6";
119 case OVS_KEY_ATTR_TCP: return "tcp";
dc235f7f 120 case OVS_KEY_ATTR_TCP_FLAGS: return "tcp_flags";
744791b5 121 case OVS_KEY_ATTR_UDP: return "udp";
c6bcb685 122 case OVS_KEY_ATTR_SCTP: return "sctp";
744791b5
BP		 123 case OVS_KEY_ATTR_ICMP: return "icmp";
124 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
125 case OVS_KEY_ATTR_ARP: return "arp";
126 case OVS_KEY_ATTR_ND: return "nd";
b02475c5 127 case OVS_KEY_ATTR_MPLS: return "mpls";
572f732a
AZ		 128 case OVS_KEY_ATTR_DP_HASH: return "dp_hash";
129 case OVS_KEY_ATTR_RECIRC_ID: return "recirc_id";
744791b5
BP		 130
131 case __OVS_KEY_ATTR_MAX:
132 default:
e6603631
BP		 133 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
134 return namebuf;
744791b5
BP		 135 }
136}
137
cdee00fd
BP		 138static void
139format_generic_odp_action(struct ds *ds, const struct nlattr *a)
140{
8ba43fbd
BP		 141 size_t len = nl_attr_get_size(a);
142
cdee00fd 143 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
8ba43fbd 144 if (len) {
cdee00fd
BP		 145 const uint8_t *unspec;
146 unsigned int i;
147
148 unspec = nl_attr_get(a);
8ba43fbd 149 for (i = 0; i < len; i++) {
cdee00fd
BP		 150 ds_put_char(ds, i ? ' ': '(');
151 ds_put_format(ds, "%02x", unspec[i]);
152 }
153 ds_put_char(ds, ')');
154 }
155}
156
6ff686f2
PS		 157static void
158format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
159{
160 static const struct nl_policy ovs_sample_policy[] = {
3548d242
BP		 161 [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
162 [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
6ff686f2
PS		 163 };
164 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
6ff686f2
PS		 165 double percentage;
166 const struct nlattr *nla_acts;
167 int len;
168
169 ds_put_cstr(ds, "sample");
170
5621afff 171 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
6ff686f2
PS		 172 ds_put_cstr(ds, "(error)");
173 return;
174 }
175
176 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
177 UINT32_MAX;
178
179 ds_put_format(ds, "(sample=%.1f%%,", percentage);
180
181 ds_put_cstr(ds, "actions(");
182 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
183 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
184 format_odp_actions(ds, nla_acts, len);
185 ds_put_format(ds, "))");
186}
187
6a7e895f 188static const char *
04594cd5 189slow_path_reason_to_string(uint32_t reason)
6a7e895f 190{
04594cd5
BP		 191 switch ((enum slow_path_reason) reason) {
192#define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
193 SLOW_PATH_REASONS
194#undef SPR
6a7e895f 195 }
04594cd5
BP		 196
197 return NULL;
6a7e895f
BP		 198}
199
04594cd5
BP		 200const char *
201slow_path_reason_to_explanation(enum slow_path_reason reason)
98f0520f 202{
04594cd5
BP		 203 switch (reason) {
204#define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
205 SLOW_PATH_REASONS
206#undef SPR
98f0520f
EJ		 207 }
208
04594cd5 209 return "<unknown>";
98f0520f
EJ		 210}
211
ec956fc7
PS		 212static int
213parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
ea2735d3 214 uint32_t *res_flags, uint32_t allowed, uint32_t *res_mask)
ec956fc7
PS		 215{
216 uint32_t result = 0;
ea2735d3 217 int n;
ec956fc7 218
ea2735d3 219 /* Parse masked flags in numeric format? */
2d18eae8 220 if (res_mask && ovs_scan(s, "%"SCNi32"/%"SCNi32"%n",
ea2735d3
JR		 221 res_flags, res_mask, &n) && n > 0) {
222 if (*res_flags & ~allowed || *res_mask & ~allowed) {
223 return -EINVAL;
224 }
225 return n;
226 }
227
2d18eae8 228 n = 0;
ec956fc7 229
2d18eae8 230 if (res_mask && (*s == '+' || *s == '-')) {
ea2735d3
JR		 231 uint32_t flags = 0, mask = 0;
232
233 /* Parse masked flags. */
234 while (s[n] != ')') {
235 bool set;
236 uint32_t bit;
237 int name_len;
238
239 if (s[n] == '+') {
240 set = true;
241 } else if (s[n] == '-') {
242 set = false;
243 } else {
244 return -EINVAL;
245 }
246 n++;
247
248 name_len = strcspn(s + n, "+-)");
249
250 for (bit = 1; bit; bit <<= 1) {
251 const char *fname = bit_to_string(bit);
252 size_t len;
253
254 if (!fname) {
255 continue;
256 }
257
258 len = strlen(fname);
259 if (len != name_len) {
260 continue;
261 }
262 if (!strncmp(s + n, fname, len)) {
263 if (mask & bit) {
264 /* bit already set. */
265 return -EINVAL;
266 }
267 if (!(bit & allowed)) {
268 return -EINVAL;
269 }
270 if (set) {
271 flags |= bit;
272 }
273 mask |= bit;
274 break;
275 }
276 }
277
278 if (!bit) {
279 return -EINVAL; /* Unknown flag name */
280 }
281 s += name_len;
282 }
ea2735d3
JR		 283
284 *res_flags = flags;
285 *res_mask = mask;
286 return n;
287 }
288
289 /* Parse unmasked flags. If a flag is present, it is set, otherwise
290 * it is not set. */
ec956fc7
PS		 291 while (s[n] != ')') {
292 unsigned long long int flags;
293 uint32_t bit;
294 int n0;
295
c2c28dfd 296 if (ovs_scan(&s[n], "%lli%n", &flags, &n0)) {
ea2735d3
JR		 297 if (flags & ~allowed) {
298 return -EINVAL;
299 }
ec956fc7
PS		 300 n += n0 + (s[n + n0] == ',');
301 result |= flags;
302 continue;
303 }
304
305 for (bit = 1; bit; bit <<= 1) {
306 const char *name = bit_to_string(bit);
307 size_t len;
308
309 if (!name) {
310 continue;
311 }
312
313 len = strlen(name);
314 if (!strncmp(s + n, name, len) &&
315 (s[n + len] == ',' || s[n + len] == ')')) {
ea2735d3
JR		 316 if (!(bit & allowed)) {
317 return -EINVAL;
318 }
ec956fc7
PS		 319 result |= bit;
320 n += len + (s[n + len] == ',');
321 break;
322 }
323 }
324
325 if (!bit) {
326 return -EINVAL;
327 }
328 }
ec956fc7 329
ea2735d3
JR		 330 *res_flags = result;
331 if (res_mask) {
332 *res_mask = UINT32_MAX;
333 }
ec956fc7 334 return n;
6a7e895f
BP		 335}
336
98403001
BP		 337static void
338format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
339{
340 static const struct nl_policy ovs_userspace_policy[] = {
3548d242
BP		 341 [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
342 [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_UNSPEC,
343 .optional = true },
8b7ea2d4
WZ		 344 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT] = { .type = NL_A_U32,
345 .optional = true },
98403001
BP		 346 };
347 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
e995e3df 348 const struct nlattr *userdata_attr;
8b7ea2d4 349 const struct nlattr *tunnel_out_port_attr;
98403001
BP		 350
351 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
352 ds_put_cstr(ds, "userspace(error)");
353 return;
354 }
355
356 ds_put_format(ds, "userspace(pid=%"PRIu32,
357 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
358
e995e3df 359 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
29089a54
RL		 360
361 if (userdata_attr) {
362 const uint8_t *userdata = nl_attr_get(userdata_attr);
363 size_t userdata_len = nl_attr_get_size(userdata_attr);
364 bool userdata_unspec = true;
1673e0e4 365 union user_action_cookie cookie;
98403001 366
29089a54
RL		 367 if (userdata_len >= sizeof cookie.type
368 && userdata_len <= sizeof cookie) {
369
370 memset(&cookie, 0, sizeof cookie);
371 memcpy(&cookie, userdata, userdata_len);
372
373 userdata_unspec = false;
374
375 if (userdata_len == sizeof cookie.sflow
376 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
377 ds_put_format(ds, ",sFlow("
378 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
379 vlan_tci_to_vid(cookie.sflow.vlan_tci),
380 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
381 cookie.sflow.output);
382 } else if (userdata_len == sizeof cookie.slow_path
383 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
04594cd5
BP		 384 ds_put_cstr(ds, ",slow_path(");
385 format_flags(ds, slow_path_reason_to_string,
386 cookie.slow_path.reason, ',');
387 ds_put_format(ds, ")");
29089a54
RL		 388 } else if (userdata_len == sizeof cookie.flow_sample
389 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
390 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
391 ",collector_set_id=%"PRIu32
392 ",obs_domain_id=%"PRIu32
393 ",obs_point_id=%"PRIu32")",
394 cookie.flow_sample.probability,
395 cookie.flow_sample.collector_set_id,
396 cookie.flow_sample.obs_domain_id,
397 cookie.flow_sample.obs_point_id);
b075a9b8 398 } else if (userdata_len >= sizeof cookie.ipfix
29089a54 399 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
8b7ea2d4
WZ		 400 ds_put_format(ds, ",ipfix(output_port=%"PRIu32")",
401 cookie.ipfix.output_odp_port);
29089a54
RL		 402 } else {
403 userdata_unspec = true;
404 }
98403001 405 }
e995e3df 406
29089a54
RL		 407 if (userdata_unspec) {
408 size_t i;
409 ds_put_format(ds, ",userdata(");
410 for (i = 0; i < userdata_len; i++) {
411 ds_put_format(ds, "%02x", userdata[i]);
412 }
413 ds_put_char(ds, ')');
e995e3df 414 }
98403001
BP		 415 }
416
8b7ea2d4
WZ		 417 tunnel_out_port_attr = a[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT];
418 if (tunnel_out_port_attr) {
419 ds_put_format(ds, ",tunnel_out_port=%"PRIu32,
420 nl_attr_get_u32(tunnel_out_port_attr));
421 }
422
98403001
BP		 423 ds_put_char(ds, ')');
424}
425
8ddc056d 426static void
2d18eae8 427format_vlan_tci(struct ds *ds, ovs_be16 tci, ovs_be16 mask, bool verbose)
8ddc056d 428{
2d18eae8
JR		 429 if (verbose || vlan_tci_to_vid(tci) || vlan_tci_to_vid(mask)) {
430 ds_put_format(ds, "vid=%"PRIu16, vlan_tci_to_vid(tci));
431 if (vlan_tci_to_vid(mask) != VLAN_VID_MASK) { /* Partially masked. */
432 ds_put_format(ds, "/0x%"PRIx16, vlan_tci_to_vid(mask));
433 };
434 ds_put_char(ds, ',');
435 }
436 if (verbose || vlan_tci_to_pcp(tci) || vlan_tci_to_pcp(mask)) {
437 ds_put_format(ds, "pcp=%d", vlan_tci_to_pcp(tci));
438 if (vlan_tci_to_pcp(mask) != (VLAN_PCP_MASK >> VLAN_PCP_SHIFT)) {
439 ds_put_format(ds, "/0x%x", vlan_tci_to_pcp(mask));
440 }
441 ds_put_char(ds, ',');
442 }
443 if (!(tci & htons(VLAN_CFI))) {
444 ds_put_cstr(ds, "cfi=0");
445 ds_put_char(ds, ',');
8ddc056d 446 }
2d18eae8 447 ds_chomp(ds, ',');
8ddc056d
BP		 448}
449
b02475c5
SH		 450static void
451format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
452{
453 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
454 mpls_lse_to_label(mpls_lse),
455 mpls_lse_to_tc(mpls_lse),
456 mpls_lse_to_ttl(mpls_lse),
457 mpls_lse_to_bos(mpls_lse));
458}
459
e6cc0bab
AZ		 460static void
461format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
8bfd0fda 462 const struct ovs_key_mpls *mpls_mask, int n)
e6cc0bab 463{
8bfd0fda
BP		 464 if (n == 1) {
465 ovs_be32 key = mpls_key->mpls_lse;
e6cc0bab 466
8bfd0fda
BP		 467 if (mpls_mask == NULL) {
468 format_mpls_lse(ds, key);
469 } else {
470 ovs_be32 mask = mpls_mask->mpls_lse;
471
472 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
473 mpls_lse_to_label(key), mpls_lse_to_label(mask),
474 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
475 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
476 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
477 }
e6cc0bab 478 } else {
8bfd0fda 479 int i;
e6cc0bab 480
8bfd0fda
BP		 481 for (i = 0; i < n; i++) {
482 ds_put_format(ds, "lse%d=%#"PRIx32,
483 i, ntohl(mpls_key[i].mpls_lse));
484 if (mpls_mask) {
485 ds_put_format(ds, "/%#"PRIx32, ntohl(mpls_mask[i].mpls_lse));
486 }
487 ds_put_char(ds, ',');
488 }
489 ds_chomp(ds, ',');
e6cc0bab
AZ		 490 }
491}
492
572f732a 493static void
347bf289 494format_odp_recirc_action(struct ds *ds, uint32_t recirc_id)
572f732a 495{
347bf289
AZ		 496 ds_put_format(ds, "recirc(%"PRIu32")", recirc_id);
497}
572f732a 498
347bf289
AZ		 499static void
500format_odp_hash_action(struct ds *ds, const struct ovs_action_hash *hash_act)
501{
502 ds_put_format(ds, "hash(");
572f732a 503
347bf289 504 if (hash_act->hash_alg == OVS_HASH_ALG_L4) {
62ac1f20 505 ds_put_format(ds, "hash_l4(%"PRIu32")", hash_act->hash_basis);
347bf289
AZ		 506 } else {
507 ds_put_format(ds, "Unknown hash algorithm(%"PRIu32")",
508 hash_act->hash_alg);
509 }
510 ds_put_format(ds, ")");
572f732a
AZ		 511}
512
a36de779
PS		 513static void
514format_odp_tnl_push_header(struct ds *ds, struct ovs_action_push_tnl *data)
515{
516 const struct eth_header *eth;
517 const struct ip_header *ip;
518 const void *l3;
519
520 eth = (const struct eth_header *)data->header;
521
522 l3 = eth + 1;
523 ip = (const struct ip_header *)l3;
524
525 /* Ethernet */
526 ds_put_format(ds, "header(size=%"PRIu8",type=%"PRIu8",eth(dst=",
527 data->header_len, data->tnl_type);
528 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_dst));
529 ds_put_format(ds, ",src=");
530 ds_put_format(ds, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth->eth_src));
531 ds_put_format(ds, ",dl_type=0x%04"PRIx16"),", ntohs(eth->eth_type));
532
533 /* IPv4 */
534 ds_put_format(ds, "ipv4(src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
535 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=0x%"PRIx16"),",
536 IP_ARGS(get_16aligned_be32(&ip->ip_src)),
537 IP_ARGS(get_16aligned_be32(&ip->ip_dst)),
538 ip->ip_proto, ip->ip_tos,
539 ip->ip_ttl,
540 ip->ip_frag_off);
541
542 if (data->tnl_type == OVS_VPORT_TYPE_VXLAN) {
543 const struct vxlanhdr *vxh;
544 const struct udp_header *udp;
545
546 /* UDP */
547 udp = (const struct udp_header *) (ip + 1);
548 ds_put_format(ds, "udp(src=%"PRIu16",dst=%"PRIu16"),",
549 ntohs(udp->udp_src), ntohs(udp->udp_dst));
550
551 /* VxLan */
552 vxh = (const struct vxlanhdr *) (udp + 1);
553 ds_put_format(ds, "vxlan(flags=0x%"PRIx32",vni=0x%"PRIx32")",
554 ntohl(get_16aligned_be32(&vxh->vx_flags)),
555 ntohl(get_16aligned_be32(&vxh->vx_vni)));
556 } else if (data->tnl_type == OVS_VPORT_TYPE_GRE) {
557 const struct gre_base_hdr *greh;
558 ovs_16aligned_be32 *options;
559 void *l4;
560
561 l4 = ((uint8_t *)l3 + sizeof(struct ip_header));
562 greh = (const struct gre_base_hdr *) l4;
563
564 ds_put_format(ds, "gre((flags=0x%"PRIx16",proto=0x%"PRIx16")",
565 greh->flags, ntohs(greh->protocol));
566 options = (ovs_16aligned_be32 *)(greh + 1);
567 if (greh->flags & htons(GRE_CSUM)) {
568 ds_put_format(ds, ",csum=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
569 options++;
570 }
571 if (greh->flags & htons(GRE_KEY)) {
572 ds_put_format(ds, ",key=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
573 options++;
574 }
575 if (greh->flags & htons(GRE_SEQ)) {
576 ds_put_format(ds, ",seq=0x%"PRIx32, ntohl(get_16aligned_be32(options)));
577 options++;
578 }
579 ds_put_format(ds, ")");
580 }
581 ds_put_format(ds, ")");
582}
583
584static void
585format_odp_tnl_push_action(struct ds *ds, const struct nlattr *attr)
586{
587 struct ovs_action_push_tnl *data;
588
589 data = (struct ovs_action_push_tnl *) nl_attr_get(attr);
590
591 ds_put_format(ds, "tnl_push(tnl_port(%"PRIu32"),", data->tnl_port);
592 format_odp_tnl_push_header(ds, data);
593 ds_put_format(ds, ",out_port(%"PRIu32"))", data->out_port);
594}
595
4edb9ae9 596static void
cdee00fd 597format_odp_action(struct ds *ds, const struct nlattr *a)
064af421 598{
98403001 599 int expected_len;
4edb9ae9 600 enum ovs_action_attr type = nl_attr_type(a);
fea393b1 601 const struct ovs_action_push_vlan *vlan;
6d670e7f 602 size_t size;
cdee00fd 603
98403001
BP		 604 expected_len = odp_action_len(nl_attr_type(a));
605 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
34582733 606 ds_put_format(ds, "bad length %"PRIuSIZE", expected %d for: ",
98403001 607 nl_attr_get_size(a), expected_len);
cdee00fd
BP		 608 format_generic_odp_action(ds, a);
609 return;
610 }
611
4edb9ae9 612 switch (type) {
df2c07f4 613 case OVS_ACTION_ATTR_OUTPUT:
26ce7705 614 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
064af421 615 break;
a36de779
PS		 616 case OVS_ACTION_ATTR_TUNNEL_POP:
617 ds_put_format(ds, "tnl_pop(%"PRIu32")", nl_attr_get_u32(a));
618 break;
619 case OVS_ACTION_ATTR_TUNNEL_PUSH:
620 format_odp_tnl_push_action(ds, a);
621 break;
df2c07f4 622 case OVS_ACTION_ATTR_USERSPACE:
98403001 623 format_odp_userspace_action(ds, a);
064af421 624 break;
572f732a 625 case OVS_ACTION_ATTR_RECIRC:
347bf289
AZ		 626 format_odp_recirc_action(ds, nl_attr_get_u32(a));
627 break;
628 case OVS_ACTION_ATTR_HASH:
629 format_odp_hash_action(ds, nl_attr_get(a));
572f732a 630 break;
6d670e7f
JR		 631 case OVS_ACTION_ATTR_SET_MASKED:
632 a = nl_attr_get(a);
633 size = nl_attr_get_size(a) / 2;
634 ds_put_cstr(ds, "set(");
635
636 /* Masked set action not supported for tunnel key, which is bigger. */
637 if (size <= sizeof(struct ovs_key_ipv6)) {
638 struct nlattr attr[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
639 sizeof(struct nlattr))];
640 struct nlattr mask[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6),
641 sizeof(struct nlattr))];
642
643 mask->nla_type = attr->nla_type = nl_attr_type(a);
644 mask->nla_len = attr->nla_len = NLA_HDRLEN + size;
645 memcpy(attr + 1, (char *)(a + 1), size);
646 memcpy(mask + 1, (char *)(a + 1) + size, size);
2d18eae8 647 format_odp_key_attr(attr, mask, NULL, ds, false);
6d670e7f 648 } else {
2d18eae8 649 format_odp_key_attr(a, NULL, NULL, ds, false);
6d670e7f
JR		 650 }
651 ds_put_cstr(ds, ")");
652 break;
4edb9ae9
PS		 653 case OVS_ACTION_ATTR_SET:
654 ds_put_cstr(ds, "set(");
0a37839c 655 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
4edb9ae9 656 ds_put_cstr(ds, ")");
064af421 657 break;
fea393b1
BP		 658 case OVS_ACTION_ATTR_PUSH_VLAN:
659 vlan = nl_attr_get(a);
660 ds_put_cstr(ds, "push_vlan(");
661 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
662 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
663 }
2d18eae8 664 format_vlan_tci(ds, vlan->vlan_tci, OVS_BE16_MAX, false);
8ddc056d 665 ds_put_char(ds, ')');
064af421 666 break;
fea393b1
BP		 667 case OVS_ACTION_ATTR_POP_VLAN:
668 ds_put_cstr(ds, "pop_vlan");
064af421 669 break;
b02475c5
SH		 670 case OVS_ACTION_ATTR_PUSH_MPLS: {
671 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
672 ds_put_cstr(ds, "push_mpls(");
673 format_mpls_lse(ds, mpls->mpls_lse);
674 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
675 break;
676 }
677 case OVS_ACTION_ATTR_POP_MPLS: {
678 ovs_be16 ethertype = nl_attr_get_be16(a);
679 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
680 break;
681 }
6ff686f2
PS		 682 case OVS_ACTION_ATTR_SAMPLE:
683 format_odp_sample_action(ds, a);
684 break;
4edb9ae9
PS		 685 case OVS_ACTION_ATTR_UNSPEC:
686 case __OVS_ACTION_ATTR_MAX:
064af421 687 default:
cdee00fd 688 format_generic_odp_action(ds, a);
064af421
BP		 689 break;
690 }
691}
692
693void
cdee00fd 694format_odp_actions(struct ds *ds, const struct nlattr *actions,
cf22f8cb 695 size_t actions_len)
064af421 696{
cdee00fd
BP		 697 if (actions_len) {
698 const struct nlattr *a;
699 unsigned int left;
700
701 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
702 if (a != actions) {
703 ds_put_char(ds, ',');
704 }
705 format_odp_action(ds, a);
064af421 706 }
cdee00fd 707 if (left) {
3a8cfc50
BP		 708 int i;
709
3476fce3
BP		 710 if (left == actions_len) {
711 ds_put_cstr(ds, "<empty>");
712 }
3a8cfc50
BP		 713 ds_put_format(ds, ",***%u leftover bytes*** (", left);
714 for (i = 0; i < left; i++) {
715 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
716 }
717 ds_put_char(ds, ')');
cdee00fd
BP		 718 }
719 } else {
064af421
BP		 720 ds_put_cstr(ds, "drop");
721 }
722}
7202cbe5 723
8b7ea2d4 724/* Separate out parse_odp_userspace_action() function. */
7202cbe5 725static int
8b7ea2d4 726parse_odp_userspace_action(const char *s, struct ofpbuf *actions)
7202cbe5 727{
8b7ea2d4
WZ		 728 uint32_t pid;
729 union user_action_cookie cookie;
730 struct ofpbuf buf;
731 odp_port_t tunnel_out_port;
732 int n = -1;
733 void *user_data = NULL;
734 size_t user_data_size = 0;
735
736 if (!ovs_scan(s, "userspace(pid=%"SCNi32"%n", &pid, &n)) {
737 return -EINVAL;
7202cbe5
BP		 738 }
739
740 {
c2c28dfd
BP		 741 uint32_t output;
742 uint32_t probability;
743 uint32_t collector_set_id;
744 uint32_t obs_domain_id;
745 uint32_t obs_point_id;
7202cbe5 746 int vid, pcp;
8b7ea2d4
WZ		 747 int n1 = -1;
748 if (ovs_scan(&s[n], ",sFlow(vid=%i,"
749 "pcp=%i,output=%"SCNi32")%n",
750 &vid, &pcp, &output, &n1)) {
7202cbe5
BP		 751 uint16_t tci;
752
8b7ea2d4 753 n += n1;
7202cbe5
BP		 754 tci = vid | (pcp << VLAN_PCP_SHIFT);
755 if (tci) {
756 tci |= VLAN_CFI;
757 }
758
759 cookie.type = USER_ACTION_COOKIE_SFLOW;
1673e0e4
BP		 760 cookie.sflow.vlan_tci = htons(tci);
761 cookie.sflow.output = output;
8b7ea2d4
WZ		 762 user_data = &cookie;
763 user_data_size = sizeof cookie.sflow;
2d18eae8 764 } else if (ovs_scan(&s[n], ",slow_path(%n",
8b7ea2d4 765 &n1)) {
04594cd5 766 int res;
6a7e895f 767
8b7ea2d4 768 n += n1;
6a7e895f
BP		 769 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
770 cookie.slow_path.unused = 0;
04594cd5 771 cookie.slow_path.reason = 0;
6a7e895f 772
04594cd5 773 res = parse_flags(&s[n], slow_path_reason_to_string,
ea2735d3
JR		 774 &cookie.slow_path.reason,
775 SLOW_PATH_REASON_MASK, NULL);
2d18eae8 776 if (res < 0 || s[n + res] != ')') {
04594cd5
BP		 777 return res;
778 }
2d18eae8 779 n += res + 1;
6a7e895f 780
8b7ea2d4
WZ		 781 user_data = &cookie;
782 user_data_size = sizeof cookie.slow_path;
783 } else if (ovs_scan(&s[n], ",flow_sample(probability=%"SCNi32","
c2c28dfd
BP		 784 "collector_set_id=%"SCNi32","
785 "obs_domain_id=%"SCNi32","
8b7ea2d4
WZ		 786 "obs_point_id=%"SCNi32")%n",
787 &probability, &collector_set_id,
788 &obs_domain_id, &obs_point_id, &n1)) {
789 n += n1;
29089a54
RL		 790
791 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
792 cookie.flow_sample.probability = probability;
793 cookie.flow_sample.collector_set_id = collector_set_id;
794 cookie.flow_sample.obs_domain_id = obs_domain_id;
795 cookie.flow_sample.obs_point_id = obs_point_id;
8b7ea2d4
WZ		 796 user_data = &cookie;
797 user_data_size = sizeof cookie.flow_sample;
798 } else if (ovs_scan(&s[n], ",ipfix(output_port=%"SCNi32")%n",
799 &output, &n1) ) {
800 n += n1;
29089a54 801 cookie.type = USER_ACTION_COOKIE_IPFIX;
8b7ea2d4
WZ		 802 cookie.ipfix.output_odp_port = u32_to_odp(output);
803 user_data = &cookie;
804 user_data_size = sizeof cookie.ipfix;
805 } else if (ovs_scan(&s[n], ",userdata(%n",
806 &n1)) {
e995e3df
BP		 807 char *end;
808
8b7ea2d4 809 n += n1;
e995e3df
BP		 810 ofpbuf_init(&buf, 16);
811 end = ofpbuf_put_hex(&buf, &s[n], NULL);
8b7ea2d4
WZ		 812 if (end[0] != ')') {
813 return -EINVAL;
e995e3df 814 }
8b7ea2d4
WZ		 815 user_data = ofpbuf_data(&buf);
816 user_data_size = ofpbuf_size(&buf);
817 n = (end + 1) - s;
818 }
819 }
820
821 {
822 int n1 = -1;
823 if (ovs_scan(&s[n], ",tunnel_out_port=%"SCNi32")%n",
824 &tunnel_out_port, &n1)) {
825 odp_put_userspace_action(pid, user_data, user_data_size, tunnel_out_port, actions);
826 return n + n1;
827 } else if (s[n] == ')') {
828 odp_put_userspace_action(pid, user_data, user_data_size, ODPP_NONE, actions);
829 return n + 1;
830 }
831 }
832
833 return -EINVAL;
834}
835
a36de779
PS		 836static int
837ovs_parse_tnl_push(const char *s, struct ovs_action_push_tnl *data)
838{
839 struct eth_header *eth;
840 struct ip_header *ip;
841 struct udp_header *udp;
842 struct gre_base_hdr *greh;
843 uint16_t gre_proto, dl_type, udp_src, udp_dst;
844 ovs_be32 sip, dip;
845 uint32_t tnl_type = 0, header_len = 0;
846 void *l3, *l4;
847 int n = 0;
848
849 if (!ovs_scan_len(s, &n, "tnl_push(tnl_port(%"SCNi32"),", &data->tnl_port)) {
850 return -EINVAL;
851 }
852 eth = (struct eth_header *) data->header;
853 l3 = (data->header + sizeof *eth);
854 l4 = ((uint8_t *) l3 + sizeof (struct ip_header));
855 ip = (struct ip_header *) l3;
856 if (!ovs_scan_len(s, &n, "header(size=%"SCNi32",type=%"SCNi32","
857 "eth(dst="ETH_ADDR_SCAN_FMT",",
858 &data->header_len,
859 &data->tnl_type,
860 ETH_ADDR_SCAN_ARGS(eth->eth_dst))) {
861 return -EINVAL;
862 }
863
864 if (!ovs_scan_len(s, &n, "src="ETH_ADDR_SCAN_FMT",",
865 ETH_ADDR_SCAN_ARGS(eth->eth_src))) {
866 return -EINVAL;
867 }
868 if (!ovs_scan_len(s, &n, "dl_type=0x%"SCNx16"),", &dl_type)) {
869 return -EINVAL;
870 }
871 eth->eth_type = htons(dl_type);
872
873 /* IPv4 */
874 if (!ovs_scan_len(s, &n, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT",proto=%"SCNi8
875 ",tos=%"SCNi8",ttl=%"SCNi8",frag=0x%"SCNx16"),",
876 IP_SCAN_ARGS(&sip),
877 IP_SCAN_ARGS(&dip),
878 &ip->ip_proto, &ip->ip_tos,
879 &ip->ip_ttl, &ip->ip_frag_off)) {
880 return -EINVAL;
881 }
882 put_16aligned_be32(&ip->ip_src, sip);
883 put_16aligned_be32(&ip->ip_dst, dip);
884
885 /* Tunnel header */
886 udp = (struct udp_header *) l4;
887 greh = (struct gre_base_hdr *) l4;
888 if (ovs_scan_len(s, &n, "udp(src=%"SCNi16",dst=%"SCNi16"),",
889 &udp_src, &udp_dst)) {
890 struct vxlanhdr *vxh;
891 uint32_t vx_flags, vx_vni;
892
893 udp->udp_src = htons(udp_src);
894 udp->udp_dst = htons(udp_dst);
895 udp->udp_len = 0;
896 udp->udp_csum = 0;
897
898 vxh = (struct vxlanhdr *) (udp + 1);
899 if (!ovs_scan_len(s, &n, "vxlan(flags=0x%"SCNx32",vni=0x%"SCNx32"))",
900 &vx_flags, &vx_vni)) {
901 return -EINVAL;
902 }
903 put_16aligned_be32(&vxh->vx_flags, htonl(vx_flags));
904 put_16aligned_be32(&vxh->vx_vni, htonl(vx_vni));
905 tnl_type = OVS_VPORT_TYPE_VXLAN;
906 header_len = sizeof *eth + sizeof *ip +
907 sizeof *udp + sizeof *vxh;
908 } else if (ovs_scan_len(s, &n, "gre((flags=0x%"SCNx16",proto=0x%"SCNx16")",
909 &greh->flags, &gre_proto)){
910
911 tnl_type = OVS_VPORT_TYPE_GRE;
912 greh->protocol = htons(gre_proto);
913 ovs_16aligned_be32 *options = (ovs_16aligned_be32 *) (greh + 1);
914
915 if (greh->flags & htons(GRE_CSUM)) {
916 uint32_t csum;
917
918 if (!ovs_scan_len(s, &n, ",csum=0x%"SCNx32, &csum)) {
919 return -EINVAL;
920 }
921 put_16aligned_be32(options, htonl(csum));
922 options++;
923 }
924 if (greh->flags & htons(GRE_KEY)) {
925 uint32_t key;
926
927 if (!ovs_scan_len(s, &n, ",key=0x%"SCNx32, &key)) {
928 return -EINVAL;
929 }
930
931 put_16aligned_be32(options, htonl(key));
932 options++;
933 }
934 if (greh->flags & htons(GRE_SEQ)) {
935 uint32_t seq;
936
937 if (!ovs_scan_len(s, &n, ",seq=0x%"SCNx32, &seq)) {
938 return -EINVAL;
939 }
940 put_16aligned_be32(options, htonl(seq));
941 options++;
942 }
943
944 if (!ovs_scan_len(s, &n, "))")) {
945 return -EINVAL;
946 }
947
948 header_len = sizeof *eth + sizeof *ip +
949 ((uint8_t *) options - (uint8_t *) greh);
950 } else {
951 return -EINVAL;
952 }
953
954 /* check tunnel meta data. */
955 if (data->tnl_type != tnl_type) {
956 return -EINVAL;
957 }
958 if (data->header_len != header_len) {
959 return -EINVAL;
960 }
961
962 /* Out port */
963 if (!ovs_scan_len(s, &n, ",out_port(%"SCNi32"))", &data->out_port)) {
964 return -EINVAL;
965 }
966
967 return n;
968}
969
8b7ea2d4
WZ		 970static int
971parse_odp_action(const char *s, const struct simap *port_names,
972 struct ofpbuf *actions)
973{
974 {
975 uint32_t port;
976 int n;
977
978 if (ovs_scan(s, "%"SCNi32"%n", &port, &n)) {
979 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
980 return n;
7202cbe5
BP		 981 }
982 }
983
8b7ea2d4
WZ		 984 if (port_names) {
985 int len = strcspn(s, delimiters);
986 struct simap_node *node;
987
988 node = simap_find_len(port_names, s, len);
989 if (node) {
990 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
991 return len;
992 }
993 }
994
d73803ca
DDP		 995 {
996 uint32_t recirc_id;
997 int n = -1;
998
999 if (ovs_scan(s, "recirc(%"PRIu32")%n", &recirc_id, &n)) {
1000 nl_msg_put_u32(actions, OVS_ACTION_ATTR_RECIRC, recirc_id);
1001 return n;
1002 }
1003 }
1004
8b7ea2d4
WZ		 1005 if (!strncmp(s, "userspace(", 10)) {
1006 return parse_odp_userspace_action(s, actions);
1007 }
1008
7202cbe5
BP		 1009 if (!strncmp(s, "set(", 4)) {
1010 size_t start_ofs;
1011 int retval;
6d670e7f
JR		 1012 struct nlattr mask[128 / sizeof(struct nlattr)];
1013 struct ofpbuf maskbuf;
1014 struct nlattr *nested, *key;
1015 size_t size;
1016
1017 /* 'mask' is big enough to hold any key. */
1018 ofpbuf_use_stack(&maskbuf, mask, sizeof mask);
7202cbe5
BP		 1019
1020 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
6d670e7f 1021 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, &maskbuf);
7202cbe5
BP		 1022 if (retval < 0) {
1023 return retval;
1024 }
1025 if (s[retval + 4] != ')') {
1026 return -EINVAL;
1027 }
6d670e7f
JR		 1028
1029 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1030 key = nested + 1;
1031
1032 size = nl_attr_get_size(mask);
1033 if (size == nl_attr_get_size(key)) {
1034 /* Change to masked set action if not fully masked. */
53cb9c3e 1035 if (!is_all_ones(mask + 1, size)) {
6d670e7f
JR		 1036 key->nla_len += size;
1037 ofpbuf_put(actions, mask + 1, size);
1038 /* 'actions' may have been reallocated by ofpbuf_put(). */
1039 nested = ofpbuf_at_assert(actions, start_ofs, sizeof *nested);
1040 nested->nla_type = OVS_ACTION_ATTR_SET_MASKED;
1041 }
1042 }
1043
7202cbe5
BP		 1044 nl_msg_end_nested(actions, start_ofs);
1045 return retval + 5;
1046 }
1047
becffb86
BP		 1048 {
1049 struct ovs_action_push_vlan push;
1050 int tpid = ETH_TYPE_VLAN;
1051 int vid, pcp;
1052 int cfi = 1;
1053 int n = -1;
7202cbe5 1054
c2c28dfd
BP		 1055 if (ovs_scan(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n)
1056 || ovs_scan(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
1057 &vid, &pcp, &cfi, &n)
1058 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
1059 &tpid, &vid, &pcp, &n)
1060 || ovs_scan(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
1061 &tpid, &vid, &pcp, &cfi, &n)) {
becffb86
BP		 1062 push.vlan_tpid = htons(tpid);
1063 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
1064 | (pcp << VLAN_PCP_SHIFT)
1065 | (cfi ? VLAN_CFI : 0));
1066 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
1067 &push, sizeof push);
1068
1069 return n;
7202cbe5 1070 }
7202cbe5
BP		 1071 }
1072
becffb86
BP		 1073 if (!strncmp(s, "pop_vlan", 8)) {
1074 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
1075 return 8;
7202cbe5
BP		 1076 }
1077
1078 {
1079 double percentage;
1080 int n = -1;
1081
c2c28dfd
BP		 1082 if (ovs_scan(s, "sample(sample=%lf%%,actions(%n", &percentage, &n)
1083 && percentage >= 0. && percentage <= 100.0) {
7202cbe5
BP		 1084 size_t sample_ofs, actions_ofs;
1085 double probability;
1086
1087 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
1088 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
1089 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
1090 (probability <= 0 ? 0
1091 : probability >= UINT32_MAX ? UINT32_MAX
1092 : probability));
1093
1094 actions_ofs = nl_msg_start_nested(actions,
1095 OVS_SAMPLE_ATTR_ACTIONS);
1096 for (;;) {
1097 int retval;
1098
79d4ffe2 1099 n += strspn(s + n, delimiters);
7202cbe5
BP		 1100 if (s[n] == ')') {
1101 break;
1102 }
1103
1104 retval = parse_odp_action(s + n, port_names, actions);
1105 if (retval < 0) {
1106 return retval;
1107 }
1108 n += retval;
7202cbe5
BP		 1109 }
1110 nl_msg_end_nested(actions, actions_ofs);
1111 nl_msg_end_nested(actions, sample_ofs);
1112
1113 return s[n + 1] == ')' ? n + 2 : -EINVAL;
1114 }
1115 }
1116
a36de779
PS		 1117 {
1118 uint32_t port;
1119 int n;
1120
1121 if (ovs_scan(s, "tnl_pop(%"SCNi32")%n", &port, &n)) {
1122 nl_msg_put_u32(actions, OVS_ACTION_ATTR_TUNNEL_POP, port);
1123 return n;
1124 }
1125 }
1126
1127 {
1128 struct ovs_action_push_tnl data;
1129 int n;
1130
1131 n = ovs_parse_tnl_push(s, &data);
1132 if (n > 0) {
1133 odp_put_tnl_push_action(actions, &data);
1134 return n;
1135 } else if (n < 0) {
1136 return n;
1137 }
1138 }
7202cbe5
BP		 1139 return -EINVAL;
1140}
1141
1142/* Parses the string representation of datapath actions, in the format output
1143 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
1144 * value. On success, the ODP actions are appended to 'actions' as a series of
1145 * Netlink attributes. On failure, no data is appended to 'actions'. Either
1146 * way, 'actions''s data might be reallocated. */
1147int
44bac24b 1148odp_actions_from_string(const char *s, const struct simap *port_names,
7202cbe5
BP		 1149 struct ofpbuf *actions)
1150{
1151 size_t old_size;
1152
1153 if (!strcasecmp(s, "drop")) {
1154 return 0;
1155 }
1156
1f317cb5 1157 old_size = ofpbuf_size(actions);
7202cbe5
BP		 1158 for (;;) {
1159 int retval;
1160
1161 s += strspn(s, delimiters);
1162 if (!*s) {
1163 return 0;
1164 }
1165
1166 retval = parse_odp_action(s, port_names, actions);
1167 if (retval < 0 || !strchr(delimiters, s[retval])) {
1f317cb5 1168 ofpbuf_set_size(actions, old_size);
7202cbe5
BP		 1169 return -retval;
1170 }
1171 s += retval;
1172 }
1173
1174 return 0;
1175}
14608a15 1176\f
36956a7d 1177/* Returns the correct length of the payload for a flow key attribute of the
fea393b1
BP		 1178 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
1179 * is variable length. */
36956a7d
BP		 1180static int
1181odp_flow_key_attr_len(uint16_t type)
1182{
df2c07f4 1183 if (type > OVS_KEY_ATTR_MAX) {
36956a7d
BP		 1184 return -1;
1185 }
1186
09ded0ad 1187 switch ((enum ovs_key_attr) type) {
fea393b1 1188 case OVS_KEY_ATTR_ENCAP: return -2;
abff858b 1189 case OVS_KEY_ATTR_PRIORITY: return 4;
72e8bf28 1190 case OVS_KEY_ATTR_SKB_MARK: return 4;
572f732a
AZ		 1191 case OVS_KEY_ATTR_DP_HASH: return 4;
1192 case OVS_KEY_ATTR_RECIRC_ID: return 4;
9b405f1a 1193 case OVS_KEY_ATTR_TUNNEL: return -2;
df2c07f4
JP		 1194 case OVS_KEY_ATTR_IN_PORT: return 4;
1195 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
fea393b1 1196 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
df2c07f4 1197 case OVS_KEY_ATTR_ETHERTYPE: return 2;
8bfd0fda 1198 case OVS_KEY_ATTR_MPLS: return -2;
df2c07f4
JP		 1199 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
1200 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
1201 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
dc235f7f 1202 case OVS_KEY_ATTR_TCP_FLAGS: return 2;
df2c07f4 1203 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
c6bcb685 1204 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
df2c07f4
JP		 1205 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
1206 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
1207 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
1208 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
1209
1210 case OVS_KEY_ATTR_UNSPEC:
1211 case __OVS_KEY_ATTR_MAX:
36956a7d
BP		 1212 return -1;
1213 }
1214
1215 return -1;
1216}
1217
36956a7d
BP		 1218static void
1219format_generic_odp_key(const struct nlattr *a, struct ds *ds)
1220{
1221 size_t len = nl_attr_get_size(a);
36956a7d
BP		 1222 if (len) {
1223 const uint8_t *unspec;
1224 unsigned int i;
1225
1226 unspec = nl_attr_get(a);
1227 for (i = 0; i < len; i++) {
e6cc0bab
AZ		 1228 if (i) {
1229 ds_put_char(ds, ' ');
1230 }
36956a7d
BP		 1231 ds_put_format(ds, "%02x", unspec[i]);
1232 }
36956a7d
BP		 1233 }
1234}
1235
7257b535
BP		 1236static const char *
1237ovs_frag_type_to_string(enum ovs_frag_type type)
1238{
1239 switch (type) {
1240 case OVS_FRAG_TYPE_NONE:
1241 return "no";
1242 case OVS_FRAG_TYPE_FIRST:
1243 return "first";
1244 case OVS_FRAG_TYPE_LATER:
1245 return "later";
1246 case __OVS_FRAG_TYPE_MAX:
1247 default:
1248 return "<error>";
1249 }
1250}
1251
9b405f1a
PS		 1252static int
1253tunnel_key_attr_len(int type)
29c7a2b2 1254{
9b405f1a
PS		 1255 switch (type) {
1256 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
1257 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
1258 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
1259 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
1260 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
1261 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
1262 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
8b7ea2d4
WZ		 1263 case OVS_TUNNEL_KEY_ATTR_TP_SRC: return 2;
1264 case OVS_TUNNEL_KEY_ATTR_TP_DST: return 2;
94872594 1265 case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
c1fc1411 1266 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
9b405f1a
PS		 1267 case __OVS_TUNNEL_KEY_ATTR_MAX:
1268 return -1;
29c7a2b2 1269 }
9b405f1a
PS		 1270 return -1;
1271}
1272
c1fc1411
JG		 1273#define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
1274static int
1275parse_geneve_opts(const struct nlattr *attr)
1276{
1277 int opts_len = nl_attr_get_size(attr);
1278 const struct geneve_opt *opt = nl_attr_get(attr);
1279
1280 while (opts_len > 0) {
1281 int len;
1282
1283 if (opts_len < sizeof(*opt)) {
1284 return -EINVAL;
1285 }
1286
1287 len = sizeof(*opt) + opt->length * 4;
1288 if (len > opts_len) {
1289 return -EINVAL;
1290 }
1291
1292 switch (GENEVE_OPT(opt->opt_class, opt->type)) {
1293 default:
1294 if (opt->type & GENEVE_CRIT_OPT_TYPE) {
1295 return -EINVAL;
1296 }
1297 };
1298
1299 opt = opt + len / sizeof(*opt);
1300 opts_len -= len;
1301 };
1302
1303 return 0;
1304}
1305
617e10e7
SH		 1306enum odp_key_fitness
1307odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
9b405f1a
PS		 1308{
1309 unsigned int left;
1310 const struct nlattr *a;
1311 bool ttl = false;
1312 bool unknown = false;
1313
1314 NL_NESTED_FOR_EACH(a, left, attr) {
1315 uint16_t type = nl_attr_type(a);
1316 size_t len = nl_attr_get_size(a);
1317 int expected_len = tunnel_key_attr_len(type);
1318
1319 if (len != expected_len && expected_len >= 0) {
1320 return ODP_FIT_ERROR;
1321 }
1322
1323 switch (type) {
1324 case OVS_TUNNEL_KEY_ATTR_ID:
1325 tun->tun_id = nl_attr_get_be64(a);
1326 tun->flags |= FLOW_TNL_F_KEY;
1327 break;
1328 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
1329 tun->ip_src = nl_attr_get_be32(a);
1330 break;
1331 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
1332 tun->ip_dst = nl_attr_get_be32(a);
1333 break;
1334 case OVS_TUNNEL_KEY_ATTR_TOS:
1335 tun->ip_tos = nl_attr_get_u8(a);
1336 break;
1337 case OVS_TUNNEL_KEY_ATTR_TTL:
1338 tun->ip_ttl = nl_attr_get_u8(a);
1339 ttl = true;
1340 break;
1341 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
1342 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
1343 break;
1344 case OVS_TUNNEL_KEY_ATTR_CSUM:
1345 tun->flags |= FLOW_TNL_F_CSUM;
1346 break;
8b7ea2d4
WZ		 1347 case OVS_TUNNEL_KEY_ATTR_TP_SRC:
1348 tun->tp_src = nl_attr_get_be16(a);
1349 break;
1350 case OVS_TUNNEL_KEY_ATTR_TP_DST:
1351 tun->tp_dst = nl_attr_get_be16(a);
1352 break;
94872594
JG		 1353 case OVS_TUNNEL_KEY_ATTR_OAM:
1354 tun->flags |= FLOW_TNL_F_OAM;
1355 break;
c1fc1411
JG		 1356 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
1357 if (parse_geneve_opts(a)) {
1358 return ODP_FIT_ERROR;
1359 }
1360 /* It is necessary to reproduce options exactly (including order)
1361 * so it's easiest to just echo them back. */
1362 unknown = true;
1363 break;
1364 }
9b405f1a
PS		 1365 default:
1366 /* Allow this to show up as unexpected, if there are unknown
1367 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1368 unknown = true;
1369 break;
1370 }
1371 }
1372
1373 if (!ttl) {
1374 return ODP_FIT_ERROR;
1375 }
1376 if (unknown) {
758c456d 1377 return ODP_FIT_TOO_MUCH;
9b405f1a
PS		 1378 }
1379 return ODP_FIT_PERFECT;
1380}
1381
1382static void
1383tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
1384{
1385 size_t tun_key_ofs;
1386
1387 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
1388
27a8cbbc
BP		 1389 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1390 if (tun_key->tun_id || tun_key->flags & FLOW_TNL_F_KEY) {
9b405f1a
PS		 1391 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
1392 }
1393 if (tun_key->ip_src) {
1394 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
1395 }
1396 if (tun_key->ip_dst) {
1397 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
1398 }
1399 if (tun_key->ip_tos) {
1400 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
1401 }
1402 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
1403 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
1404 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
1405 }
1406 if (tun_key->flags & FLOW_TNL_F_CSUM) {
1407 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
1408 }
8b7ea2d4
WZ		 1409 if (tun_key->tp_src) {
1410 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_SRC, tun_key->tp_src);
1411 }
1412 if (tun_key->tp_dst) {
1413 nl_msg_put_be16(a, OVS_TUNNEL_KEY_ATTR_TP_DST, tun_key->tp_dst);
1414 }
94872594
JG		 1415 if (tun_key->flags & FLOW_TNL_F_OAM) {
1416 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_OAM);
1417 }
9b405f1a
PS		 1418
1419 nl_msg_end_nested(a, tun_key_ofs);
29c7a2b2
PS		 1420}
1421
041e7168
AZ		 1422static bool
1423odp_mask_attr_is_wildcard(const struct nlattr *ma)
1424{
1425 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
1426}
1427
e6cc0bab 1428static bool
d23df9a8 1429odp_mask_is_exact(enum ovs_key_attr attr, const void *mask, size_t size)
e6cc0bab 1430{
260974dc 1431 if (attr == OVS_KEY_ATTR_TCP_FLAGS) {
d23df9a8
JR		 1432 return TCP_FLAGS(*(ovs_be16 *)mask) == TCP_FLAGS(OVS_BE16_MAX);
1433 }
1434 if (attr == OVS_KEY_ATTR_IPV6) {
1435 const struct ovs_key_ipv6 *ipv6_mask = mask;
260974dc 1436
d23df9a8
JR		 1437 return
1438 ((ipv6_mask->ipv6_label & htonl(IPV6_LABEL_MASK))
ea2735d3 1439 == htonl(IPV6_LABEL_MASK))
d23df9a8
JR		 1440 && ipv6_mask->ipv6_proto == UINT8_MAX
1441 && ipv6_mask->ipv6_tclass == UINT8_MAX
1442 && ipv6_mask->ipv6_hlimit == UINT8_MAX
1443 && ipv6_mask->ipv6_frag == UINT8_MAX
1444 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_src)
1445 && ipv6_mask_is_exact((const struct in6_addr *)ipv6_mask->ipv6_dst);
1446 }
1447 if (attr == OVS_KEY_ATTR_TUNNEL) {
1448 const struct flow_tnl *tun_mask = mask;
1449
1450 return tun_mask->flags == FLOW_TNL_F_MASK
1451 && tun_mask->tun_id == OVS_BE64_MAX
1452 && tun_mask->ip_src == OVS_BE32_MAX
1453 && tun_mask->ip_dst == OVS_BE32_MAX
1454 && tun_mask->ip_tos == UINT8_MAX
1455 && tun_mask->ip_ttl == UINT8_MAX
1456 && tun_mask->tp_src == OVS_BE16_MAX
1457 && tun_mask->tp_dst == OVS_BE16_MAX;
1458 }
1459
1460 if (attr == OVS_KEY_ATTR_ARP) {
1461 /* ARP key has padding, ignore it. */
1462 BUILD_ASSERT_DECL(sizeof(struct ovs_key_arp) == 24);
1463 BUILD_ASSERT_DECL(offsetof(struct ovs_key_arp, arp_tha) == 10 + 6);
1464 size = offsetof(struct ovs_key_arp, arp_tha) + ETH_ADDR_LEN;
1465 ovs_assert(((uint16_t *)mask)[size/2] == 0);
1466 }
260974dc 1467
d23df9a8
JR		 1468 return is_all_ones(mask, size);
1469}
1470
1471static bool
1472odp_mask_attr_is_exact(const struct nlattr *ma)
1473{
1474 struct flow_tnl tun_mask;
1475 enum ovs_key_attr attr = nl_attr_type(ma);
1476 const void *mask;
1477 size_t size;
1478
1479 if (attr == OVS_KEY_ATTR_TUNNEL) {
e6cc0bab
AZ		 1480 memset(&tun_mask, 0, sizeof tun_mask);
1481 odp_tun_key_from_attr(ma, &tun_mask);
d23df9a8
JR		 1482 mask = &tun_mask;
1483 size = sizeof tun_mask;
e6cc0bab 1484 } else {
d23df9a8
JR		 1485 mask = nl_attr_get(ma);
1486 size = nl_attr_get_size(ma);
e6cc0bab
AZ		 1487 }
1488
d23df9a8 1489 return odp_mask_is_exact(attr, mask, size);
e6cc0bab
AZ		 1490}
1491
0a37839c
GS		 1492void
1493odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
1494 char *port_name)
1495{
1496 struct odp_portno_names *odp_portno_names;
1497
1498 odp_portno_names = xmalloc(sizeof *odp_portno_names);
1499 odp_portno_names->port_no = port_no;
1500 odp_portno_names->name = xstrdup(port_name);
1501 hmap_insert(portno_names, &odp_portno_names->hmap_node,
1502 hash_odp_port(port_no));
1503}
1504
1505static char *
1506odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
1507{
1508 struct odp_portno_names *odp_portno_names;
1509
1510 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
1511 hash_odp_port(port_no), portno_names) {
1512 if (odp_portno_names->port_no == port_no) {
1513 return odp_portno_names->name;
1514 }
1515 }
1516 return NULL;
1517}
1518
1519void
1520odp_portno_names_destroy(struct hmap *portno_names)
1521{
1522 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
1523 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
1524 hmap_node, portno_names) {
1525 hmap_remove(portno_names, &odp_portno_names->hmap_node);
1526 free(odp_portno_names->name);
1527 free(odp_portno_names);
1528 }
1529}
e6cc0bab 1530
2d18eae8
JR		 1531/* Format helpers. */
1532
1533static void
1534format_eth(struct ds *ds, const char *name, const uint8_t key[ETH_ADDR_LEN],
1535 const uint8_t (*mask)[ETH_ADDR_LEN], bool verbose)
1536{
1537 bool mask_empty = mask && eth_addr_is_zero(*mask);
1538
1539 if (verbose || !mask_empty) {
1540 bool mask_full = !mask || eth_mask_is_exact(*mask);
1541
1542 if (mask_full) {
1543 ds_put_format(ds, "%s="ETH_ADDR_FMT",", name, ETH_ADDR_ARGS(key));
1544 } else {
1545 ds_put_format(ds, "%s=", name);
1546 eth_format_masked(key, *mask, ds);
1547 ds_put_char(ds, ',');
1548 }
1549 }
1550}
1551
1552static void
1553format_be64(struct ds *ds, const char *name, ovs_be64 key,
1554 const ovs_be64 *mask, bool verbose)
1555{
1556 bool mask_empty = mask && !*mask;
1557
1558 if (verbose || !mask_empty) {
1559 bool mask_full = !mask || *mask == OVS_BE64_MAX;
1560
1561 ds_put_format(ds, "%s=0x%"PRIx64, name, ntohll(key));
1562 if (!mask_full) { /* Partially masked. */
1563 ds_put_format(ds, "/%#"PRIx64, ntohll(*mask));
1564 }
1565 ds_put_char(ds, ',');
1566 }
1567}
1568
1569static void
1570format_ipv4(struct ds *ds, const char *name, ovs_be32 key,
1571 const ovs_be32 *mask, bool verbose)
1572{
1573 bool mask_empty = mask && !*mask;
1574
1575 if (verbose || !mask_empty) {
1576 bool mask_full = !mask || *mask == OVS_BE32_MAX;
1577
1578 ds_put_format(ds, "%s="IP_FMT, name, IP_ARGS(key));
1579 if (!mask_full) { /* Partially masked. */
1580 ds_put_format(ds, "/"IP_FMT, IP_ARGS(*mask));
1581 }
1582 ds_put_char(ds, ',');
1583 }
1584}
1585
1586static void
1587format_ipv6(struct ds *ds, const char *name, const ovs_be32 key_[4],
1588 const ovs_be32 (*mask_)[4], bool verbose)
1589{
1590 char buf[INET6_ADDRSTRLEN];
1591 const struct in6_addr *key = (const struct in6_addr *)key_;
1592 const struct in6_addr *mask = mask_ ? (const struct in6_addr *)*mask_
1593 : NULL;
1594 bool mask_empty = mask && ipv6_mask_is_any(mask);
1595
1596 if (verbose || !mask_empty) {
1597 bool mask_full = !mask || ipv6_mask_is_exact(mask);
1598
1599 inet_ntop(AF_INET6, key, buf, sizeof buf);
1600 ds_put_format(ds, "%s=%s", name, buf);
1601 if (!mask_full) { /* Partially masked. */
1602 inet_ntop(AF_INET6, mask, buf, sizeof buf);
1603 ds_put_format(ds, "/%s", buf);
1604 }
1605 ds_put_char(ds, ',');
1606 }
1607}
1608
1609static void
1610format_ipv6_label(struct ds *ds, const char *name, ovs_be32 key,
1611 const ovs_be32 *mask, bool verbose)
1612{
1613 bool mask_empty = mask && !*mask;
1614
1615 if (verbose || !mask_empty) {
1616 bool mask_full = !mask
1617 || (*mask & htonl(IPV6_LABEL_MASK)) == htonl(IPV6_LABEL_MASK);
1618
1619 ds_put_format(ds, "%s=%#"PRIx32, name, ntohl(key));
1620 if (!mask_full) { /* Partially masked. */
1621 ds_put_format(ds, "/%#"PRIx32, ntohl(*mask));
1622 }
1623 ds_put_char(ds, ',');
1624 }
1625}
1626
1627static void
1628format_u8x(struct ds *ds, const char *name, uint8_t key,
1629 const uint8_t *mask, bool verbose)
1630{
1631 bool mask_empty = mask && !*mask;
1632
1633 if (verbose || !mask_empty) {
1634 bool mask_full = !mask || *mask == UINT8_MAX;
1635
1636 ds_put_format(ds, "%s=%#"PRIx8, name, key);
1637 if (!mask_full) { /* Partially masked. */
1638 ds_put_format(ds, "/%#"PRIx8, *mask);
1639 }
1640 ds_put_char(ds, ',');
1641 }
1642}
1643
1644static void
1645format_u8u(struct ds *ds, const char *name, uint8_t key,
1646 const uint8_t *mask, bool verbose)
1647{
1648 bool mask_empty = mask && !*mask;
1649
1650 if (verbose || !mask_empty) {
1651 bool mask_full = !mask || *mask == UINT8_MAX;
1652
1653 ds_put_format(ds, "%s=%"PRIu8, name, key);
1654 if (!mask_full) { /* Partially masked. */
1655 ds_put_format(ds, "/%#"PRIx8, *mask);
1656 }
1657 ds_put_char(ds, ',');
1658 }
1659}
1660
1661static void
1662format_be16(struct ds *ds, const char *name, ovs_be16 key,
1663 const ovs_be16 *mask, bool verbose)
1664{
1665 bool mask_empty = mask && !*mask;
1666
1667 if (verbose || !mask_empty) {
1668 bool mask_full = !mask || *mask == OVS_BE16_MAX;
1669
1670 ds_put_format(ds, "%s=%"PRIu16, name, ntohs(key));
1671 if (!mask_full) { /* Partially masked. */
1672 ds_put_format(ds, "/%#"PRIx16, ntohs(*mask));
1673 }
1674 ds_put_char(ds, ',');
1675 }
1676}
1677
1678static void
1679format_tun_flags(struct ds *ds, const char *name, uint16_t key,
1680 const uint16_t *mask, bool verbose)
1681{
1682 bool mask_empty = mask && !*mask;
1683
1684 if (verbose || !mask_empty) {
1685 bool mask_full = !mask || (*mask & FLOW_TNL_F_MASK) == FLOW_TNL_F_MASK;
1686
1687 ds_put_cstr(ds, name);
1688 ds_put_char(ds, '(');
1689 if (!mask_full) { /* Partially masked. */
1690 format_flags_masked(ds, NULL, flow_tun_flag_to_string, key, *mask);
1691 } else { /* Fully masked. */
1692 format_flags(ds, flow_tun_flag_to_string, key, ',');
1693 }
1694 ds_put_cstr(ds, "),");
1695 }
1696}
1697
1698static void
1699format_frag(struct ds *ds, const char *name, uint8_t key,
1700 const uint8_t *mask, bool verbose)
1701{
1702 bool mask_empty = mask && !*mask;
1703
1704 /* ODP frag is an enumeration field; partial masks are not meaningful. */
1705 if (verbose || !mask_empty) {
1706 bool mask_full = !mask || *mask == UINT8_MAX;
1707
1708 if (!mask_full) { /* Partially masked. */
1709 ds_put_format(ds, "error: partial mask not supported for frag (%#"
1710 PRIx8"),", *mask);
1711 } else {
1712 ds_put_format(ds, "%s=%s,", name, ovs_frag_type_to_string(key));
1713 }
1714 }
1715}
1716
1717#define MASK(PTR, FIELD) PTR ? &PTR->FIELD : NULL
1718
36956a7d 1719static void
e6cc0bab 1720format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
0a37839c
GS		 1721 const struct hmap *portno_names, struct ds *ds,
1722 bool verbose)
36956a7d 1723{
7a8e9ed2 1724 enum ovs_key_attr attr = nl_attr_type(a);
e6603631 1725 char namebuf[OVS_KEY_ATTR_BUFSIZE];
fea393b1 1726 int expected_len;
dc8c5408 1727 bool is_exact;
36956a7d 1728
dc8c5408 1729 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
e6cc0bab 1730
e6603631 1731 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
e6cc0bab
AZ		 1732
1733 {
1734 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
1735 if (expected_len != -2) {
1736 bool bad_key_len = nl_attr_get_size(a) != expected_len;
54695350 1737 bool bad_mask_len = ma && nl_attr_get_size(ma) != expected_len;
e6cc0bab
AZ		 1738
1739 if (bad_key_len || bad_mask_len) {
1740 if (bad_key_len) {
34582733 1741 ds_put_format(ds, "(bad key length %"PRIuSIZE", expected %d)(",
54695350 1742 nl_attr_get_size(a), expected_len);
e6cc0bab
AZ		 1743 }
1744 format_generic_odp_key(a, ds);
54695350 1745 if (ma) {
e6cc0bab 1746 ds_put_char(ds, '/');
54695350
JR		 1747 if (bad_mask_len) {
1748 ds_put_format(ds, "(bad mask length %"PRIuSIZE", expected %d)(",
1749 nl_attr_get_size(ma), expected_len);
1750 }
1751 format_generic_odp_key(ma, ds);
e6cc0bab 1752 }
e6cc0bab
AZ		 1753 ds_put_char(ds, ')');
1754 return;
1755 }
1756 }
36956a7d
BP		 1757 }
1758
e6cc0bab 1759 ds_put_char(ds, '(');
7a8e9ed2 1760 switch (attr) {
fea393b1 1761 case OVS_KEY_ATTR_ENCAP:
e6cc0bab
AZ		 1762 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1763 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
0a37839c 1764 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
041e7168 1765 verbose);
0a37839c
GS		 1766 } else if (nl_attr_get_size(a)) {
1767 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1768 ds, verbose);
fea393b1 1769 }
fea393b1
BP		 1770 break;
1771
abff858b 1772 case OVS_KEY_ATTR_PRIORITY:
72e8bf28 1773 case OVS_KEY_ATTR_SKB_MARK:
572f732a
AZ		 1774 case OVS_KEY_ATTR_DP_HASH:
1775 case OVS_KEY_ATTR_RECIRC_ID:
e6cc0bab 1776 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
dc8c5408 1777 if (!is_exact) {
e6cc0bab
AZ		 1778 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1779 }
72e8bf28
AA		 1780 break;
1781
ea2735d3 1782 case OVS_KEY_ATTR_TUNNEL: {
2d18eae8
JR		 1783 struct flow_tnl key, mask_;
1784 struct flow_tnl *mask = ma ? &mask_ : NULL;
e6cc0bab 1785
2d18eae8
JR		 1786 if (mask) {
1787 memset(mask, 0, sizeof *mask);
1788 odp_tun_key_from_attr(ma, mask);
ea2735d3 1789 }
2d18eae8
JR		 1790 memset(&key, 0, sizeof key);
1791 if (odp_tun_key_from_attr(a, &key) == ODP_FIT_ERROR) {
ea2735d3
JR		 1792 ds_put_format(ds, "error");
1793 return;
1794 }
2d18eae8
JR		 1795 format_be64(ds, "tun_id", key.tun_id, MASK(mask, tun_id), verbose);
1796 format_ipv4(ds, "src", key.ip_src, MASK(mask, ip_src), verbose);
1797 format_ipv4(ds, "dst", key.ip_dst, MASK(mask, ip_dst), verbose);
1798 format_u8x(ds, "tos", key.ip_tos, MASK(mask, ip_tos), verbose);
1799 format_u8u(ds, "ttl", key.ip_ttl, MASK(mask, ip_ttl), verbose);
1800 format_be16(ds, "tp_src", key.tp_src, MASK(mask, tp_src), verbose);
1801 format_be16(ds, "tp_dst", key.tp_dst, MASK(mask, tp_dst), verbose);
1802 format_tun_flags(ds, "flags", key.flags, MASK(mask, flags), verbose);
1803 ds_chomp(ds, ',');
356af50b 1804 break;
ea2735d3 1805 }
df2c07f4 1806 case OVS_KEY_ATTR_IN_PORT:
0a37839c
GS		 1807 if (portno_names && verbose && is_exact) {
1808 char *name = odp_portno_names_get(portno_names,
1809 u32_to_odp(nl_attr_get_u32(a)));
1810 if (name) {
1811 ds_put_format(ds, "%s", name);
1812 } else {
1813 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1814 }
1815 } else {
1816 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1817 if (!is_exact) {
1818 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1819 }
e6cc0bab 1820 }
36956a7d
BP		 1821 break;
1822
2d18eae8
JR		 1823 case OVS_KEY_ATTR_ETHERNET: {
1824 const struct ovs_key_ethernet *mask = ma ? nl_attr_get(ma) : NULL;
1825 const struct ovs_key_ethernet *key = nl_attr_get(a);
e6cc0bab 1826
2d18eae8
JR		 1827 format_eth(ds, "src", key->eth_src, MASK(mask, eth_src), verbose);
1828 format_eth(ds, "dst", key->eth_dst, MASK(mask, eth_dst), verbose);
1829 ds_chomp(ds, ',');
36956a7d 1830 break;
2d18eae8 1831 }
fea393b1 1832 case OVS_KEY_ATTR_VLAN:
2d18eae8
JR		 1833 format_vlan_tci(ds, nl_attr_get_be16(a),
1834 ma ? nl_attr_get_be16(ma) : OVS_BE16_MAX, verbose);
36956a7d
BP		 1835 break;
1836
b02475c5
SH		 1837 case OVS_KEY_ATTR_MPLS: {
1838 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
e6cc0bab 1839 const struct ovs_key_mpls *mpls_mask = NULL;
8bfd0fda
BP		 1840 size_t size = nl_attr_get_size(a);
1841
1842 if (!size || size % sizeof *mpls_key) {
6d670e7f 1843 ds_put_format(ds, "(bad key length %"PRIuSIZE")", size);
8bfd0fda
BP		 1844 return;
1845 }
dc8c5408 1846 if (!is_exact) {
e6cc0bab 1847 mpls_mask = nl_attr_get(ma);
6d670e7f 1848 if (size != nl_attr_get_size(ma)) {
8bfd0fda
BP		 1849 ds_put_format(ds, "(key length %"PRIuSIZE" != "
1850 "mask length %"PRIuSIZE")",
6d670e7f 1851 size, nl_attr_get_size(ma));
8bfd0fda
BP		 1852 return;
1853 }
e6cc0bab 1854 }
8bfd0fda 1855 format_mpls(ds, mpls_key, mpls_mask, size / sizeof *mpls_key);
b02475c5
SH		 1856 break;
1857 }
df2c07f4 1858 case OVS_KEY_ATTR_ETHERTYPE:
e6cc0bab 1859 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
dc8c5408 1860 if (!is_exact) {
e6cc0bab
AZ		 1861 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1862 }
36956a7d
BP		 1863 break;
1864
2d18eae8
JR		 1865 case OVS_KEY_ATTR_IPV4: {
1866 const struct ovs_key_ipv4 *key = nl_attr_get(a);
1867 const struct ovs_key_ipv4 *mask = ma ? nl_attr_get(ma) : NULL;
1868
1869 format_ipv4(ds, "src", key->ipv4_src, MASK(mask, ipv4_src), verbose);
1870 format_ipv4(ds, "dst", key->ipv4_dst, MASK(mask, ipv4_dst), verbose);
1871 format_u8u(ds, "proto", key->ipv4_proto, MASK(mask, ipv4_proto),
1872 verbose);
1873 format_u8x(ds, "tos", key->ipv4_tos, MASK(mask, ipv4_tos), verbose);
1874 format_u8u(ds, "ttl", key->ipv4_ttl, MASK(mask, ipv4_ttl), verbose);
1875 format_frag(ds, "frag", key->ipv4_frag, MASK(mask, ipv4_frag),
1876 verbose);
1877 ds_chomp(ds, ',');
36956a7d 1878 break;
2d18eae8
JR		 1879 }
1880 case OVS_KEY_ATTR_IPV6: {
1881 const struct ovs_key_ipv6 *key = nl_attr_get(a);
1882 const struct ovs_key_ipv6 *mask = ma ? nl_attr_get(ma) : NULL;
1883
1884 format_ipv6(ds, "src", key->ipv6_src, MASK(mask, ipv6_src), verbose);
1885 format_ipv6(ds, "dst", key->ipv6_dst, MASK(mask, ipv6_dst), verbose);
1886 format_ipv6_label(ds, "label", key->ipv6_label, MASK(mask, ipv6_label),
1887 verbose);
1888 format_u8u(ds, "proto", key->ipv6_proto, MASK(mask, ipv6_proto),
1889 verbose);
1890 format_u8x(ds, "tclass", key->ipv6_tclass, MASK(mask, ipv6_tclass),
1891 verbose);
1892 format_u8u(ds, "hlimit", key->ipv6_hlimit, MASK(mask, ipv6_hlimit),
1893 verbose);
1894 format_frag(ds, "frag", key->ipv6_frag, MASK(mask, ipv6_frag),
1895 verbose);
1896 ds_chomp(ds, ',');
d31f1109 1897 break;
2d18eae8
JR		 1898 }
1899 /* These have the same structure and format. */
df2c07f4 1900 case OVS_KEY_ATTR_TCP:
2d18eae8
JR		 1901 case OVS_KEY_ATTR_UDP:
1902 case OVS_KEY_ATTR_SCTP: {
1903 const struct ovs_key_tcp *key = nl_attr_get(a);
1904 const struct ovs_key_tcp *mask = ma ? nl_attr_get(ma) : NULL;
e6cc0bab 1905
2d18eae8
JR		 1906 format_be16(ds, "src", key->tcp_src, MASK(mask, tcp_src), verbose);
1907 format_be16(ds, "dst", key->tcp_dst, MASK(mask, tcp_dst), verbose);
1908 ds_chomp(ds, ',');
36956a7d 1909 break;
2d18eae8 1910 }
dc235f7f 1911 case OVS_KEY_ATTR_TCP_FLAGS:
dc235f7f 1912 if (!is_exact) {
ea2735d3
JR		 1913 format_flags_masked(ds, NULL, packet_tcp_flag_to_string,
1914 ntohs(nl_attr_get_be16(a)),
1915 ntohs(nl_attr_get_be16(ma)));
1916 } else {
1917 format_flags(ds, packet_tcp_flag_to_string,
1918 ntohs(nl_attr_get_be16(a)), ',');
dc235f7f
JR		 1919 }
1920 break;
1921
2d18eae8
JR		 1922 case OVS_KEY_ATTR_ICMP: {
1923 const struct ovs_key_icmp *key = nl_attr_get(a);
1924 const struct ovs_key_icmp *mask = ma ? nl_attr_get(ma) : NULL;
e6cc0bab 1925
2d18eae8
JR		 1926 format_u8u(ds, "type", key->icmp_type, MASK(mask, icmp_type), verbose);
1927 format_u8u(ds, "code", key->icmp_code, MASK(mask, icmp_code), verbose);
1928 ds_chomp(ds, ',');
36956a7d 1929 break;
2d18eae8
JR		 1930 }
1931 case OVS_KEY_ATTR_ICMPV6: {
1932 const struct ovs_key_icmpv6 *key = nl_attr_get(a);
1933 const struct ovs_key_icmpv6 *mask = ma ? nl_attr_get(ma) : NULL;
36956a7d 1934
2d18eae8
JR		 1935 format_u8u(ds, "type", key->icmpv6_type, MASK(mask, icmpv6_type),
1936 verbose);
1937 format_u8u(ds, "code", key->icmpv6_code, MASK(mask, icmpv6_code),
1938 verbose);
1939 ds_chomp(ds, ',');
d31f1109 1940 break;
2d18eae8
JR		 1941 }
1942 case OVS_KEY_ATTR_ARP: {
1943 const struct ovs_key_arp *mask = ma ? nl_attr_get(ma) : NULL;
1944 const struct ovs_key_arp *key = nl_attr_get(a);
d31f1109 1945
2d18eae8
JR		 1946 format_ipv4(ds, "sip", key->arp_sip, MASK(mask, arp_sip), verbose);
1947 format_ipv4(ds, "tip", key->arp_tip, MASK(mask, arp_tip), verbose);
1948 format_be16(ds, "op", key->arp_op, MASK(mask, arp_op), verbose);
1949 format_eth(ds, "sha", key->arp_sha, MASK(mask, arp_sha), verbose);
1950 format_eth(ds, "tha", key->arp_tha, MASK(mask, arp_tha), verbose);
1951 ds_chomp(ds, ',');
36956a7d 1952 break;
2d18eae8 1953 }
df2c07f4 1954 case OVS_KEY_ATTR_ND: {
2d18eae8
JR		 1955 const struct ovs_key_nd *mask = ma ? nl_attr_get(ma) : NULL;
1956 const struct ovs_key_nd *key = nl_attr_get(a);
e6cc0bab 1957
2d18eae8
JR		 1958 format_ipv6(ds, "target", key->nd_target, MASK(mask, nd_target),
1959 verbose);
1960 format_eth(ds, "sll", key->nd_sll, MASK(mask, nd_sll), verbose);
1961 format_eth(ds, "tll", key->nd_tll, MASK(mask, nd_tll), verbose);
685a51a5 1962
2d18eae8 1963 ds_chomp(ds, ',');
685a51a5
JP		 1964 break;
1965 }
7a8e9ed2
BP		 1966 case OVS_KEY_ATTR_UNSPEC:
1967 case __OVS_KEY_ATTR_MAX:
36956a7d
BP		 1968 default:
1969 format_generic_odp_key(a, ds);
dc8c5408 1970 if (!is_exact) {
e6cc0bab
AZ		 1971 ds_put_char(ds, '/');
1972 format_generic_odp_key(ma, ds);
1973 }
36956a7d
BP		 1974 break;
1975 }
e6cc0bab 1976 ds_put_char(ds, ')');
36956a7d
BP		 1977}
1978
dc8c5408
AZ		 1979static struct nlattr *
1980generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1981{
1982 const struct nlattr *a;
1983 unsigned int left;
1984 int type = nl_attr_type(key);
1985 int size = nl_attr_get_size(key);
1986
1987 if (odp_flow_key_attr_len(type) >=0) {
9ddf12cc 1988 nl_msg_put_unspec_zero(ofp, type, size);
dc8c5408
AZ		 1989 } else {
1990 size_t nested_mask;
1991
1992 nested_mask = nl_msg_start_nested(ofp, type);
1993 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1994 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1995 }
1996 nl_msg_end_nested(ofp, nested_mask);
1997 }
1998
1f317cb5 1999 return ofpbuf_base(ofp);
dc8c5408
AZ		 2000}
2001
534a19b9
JS		 2002int
2003odp_ufid_from_string(const char *s_, ovs_u128 *ufid)
2004{
2005 const char *s = s_;
2006
2007 if (ovs_scan(s, "ufid:")) {
2008 size_t n;
2009
2010 s += 5;
2011 if (ovs_scan(s, "0x")) {
2012 s += 2;
2013 }
2014
2015 n = strspn(s, "0123456789abcdefABCDEF");
2016 if (n != 32) {
2017 return -EINVAL;
2018 }
2019
2020 if (!ovs_scan(s, "%"SCNx64, &ufid->u64.hi)) {
2021 return -EINVAL;
2022 }
2023 s += 16;
2024
2025 if (!ovs_scan(s, "%"SCNx64, &ufid->u64.lo)) {
2026 return -EINVAL;
2027 }
2028 s += 16;
2029 s += strspn(s, delimiters);
2030
2031 return s - s_;
2032 }
2033
2034 return 0;
2035}
2036
70e5ed6f
JS		 2037void
2038odp_format_ufid(const ovs_u128 *ufid, struct ds *ds)
2039{
2040 ds_put_format(ds, "ufid:%016"PRIx64"%016"PRIx64, ufid->u64.lo,
2041 ufid->u64.hi);
2042}
2043
36956a7d 2044/* Appends to 'ds' a string representation of the 'key_len' bytes of
e6cc0bab 2045 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
73580638
GS		 2046 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
2047 * non-null and 'verbose' is true, translates odp port number to its name. */
14608a15 2048void
e6cc0bab
AZ		 2049odp_flow_format(const struct nlattr *key, size_t key_len,
2050 const struct nlattr *mask, size_t mask_len,
0a37839c 2051 const struct hmap *portno_names, struct ds *ds, bool verbose)
14608a15 2052{
36956a7d
BP		 2053 if (key_len) {
2054 const struct nlattr *a;
2055 unsigned int left;
e6cc0bab
AZ		 2056 bool has_ethtype_key = false;
2057 const struct nlattr *ma = NULL;
dc8c5408 2058 struct ofpbuf ofp;
041e7168 2059 bool first_field = true;
36956a7d 2060
dc8c5408 2061 ofpbuf_init(&ofp, 100);
36956a7d 2062 NL_ATTR_FOR_EACH (a, left, key, key_len) {
041e7168
AZ		 2063 bool is_nested_attr;
2064 bool is_wildcard = false;
2065 int attr_type = nl_attr_type(a);
2066
2067 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
e6cc0bab
AZ		 2068 has_ethtype_key = true;
2069 }
041e7168
AZ		 2070
2071 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
2072
e6cc0bab
AZ		 2073 if (mask && mask_len) {
2074 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
041e7168
AZ		 2075 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
2076 }
2077
2078 if (verbose || !is_wildcard || is_nested_attr) {
2079 if (is_wildcard && !ma) {
dc8c5408
AZ		 2080 ma = generate_all_wildcard_mask(&ofp, a);
2081 }
041e7168
AZ		 2082 if (!first_field) {
2083 ds_put_char(ds, ',');
2084 }
0a37839c 2085 format_odp_key_attr(a, ma, portno_names, ds, verbose);
041e7168 2086 first_field = false;
e6cc0bab 2087 }
dc8c5408 2088 ofpbuf_clear(&ofp);
36956a7d 2089 }
dc8c5408
AZ		 2090 ofpbuf_uninit(&ofp);
2091
36956a7d 2092 if (left) {
3a8cfc50 2093 int i;
1394054e 2094
36956a7d
BP		 2095 if (left == key_len) {
2096 ds_put_cstr(ds, "<empty>");
2097 }
3a8cfc50
BP		 2098 ds_put_format(ds, ",***%u leftover bytes*** (", left);
2099 for (i = 0; i < left; i++) {
2100 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
2101 }
2102 ds_put_char(ds, ')');
36956a7d 2103 }
e6cc0bab
AZ		 2104 if (!has_ethtype_key) {
2105 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
2106 if (ma) {
2107 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
2108 ntohs(nl_attr_get_be16(ma)));
2109 }
2110 }
36956a7d
BP		 2111 } else {
2112 ds_put_cstr(ds, "<empty>");
2113 }
14608a15 2114}
064af421 2115
e6cc0bab
AZ		 2116/* Appends to 'ds' a string representation of the 'key_len' bytes of
2117 * OVS_KEY_ATTR_* attributes in 'key'. */
2118void
2119odp_flow_key_format(const struct nlattr *key,
2120 size_t key_len, struct ds *ds)
2121{
0a37839c 2122 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
e6cc0bab
AZ		 2123}
2124
7257b535
BP		 2125static bool
2126ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
2127{
2128 if (!strcasecmp(s, "no")) {
2129 *type = OVS_FRAG_TYPE_NONE;
2130 } else if (!strcasecmp(s, "first")) {
2131 *type = OVS_FRAG_TYPE_FIRST;
2132 } else if (!strcasecmp(s, "later")) {
2133 *type = OVS_FRAG_TYPE_LATER;
2134 } else {
2135 return false;
2136 }
2137 return true;
2138}
2139
2d18eae8 2140/* Parsing. */
b02475c5 2141
3bffc610 2142static int
2d18eae8
JR		 2143scan_eth(const char *s, uint8_t (*key)[ETH_ADDR_LEN],
2144 uint8_t (*mask)[ETH_ADDR_LEN])
3bffc610 2145{
2d18eae8 2146 int n;
abff858b 2147
2d18eae8
JR		 2148 if (ovs_scan(s, ETH_ADDR_SCAN_FMT"%n", ETH_ADDR_SCAN_ARGS(*key), &n)) {
2149 int len = n;
2150
2151 if (mask) {
2152 if (ovs_scan(s + len, "/"ETH_ADDR_SCAN_FMT"%n",
2153 ETH_ADDR_SCAN_ARGS(*mask), &n)) {
2154 len += n;
2155 } else {
2156 memset(mask, 0xff, sizeof *mask);
e6cc0bab 2157 }
abff858b 2158 }
2d18eae8 2159 return len;
abff858b 2160 }
2d18eae8
JR		 2161 return 0;
2162}
abff858b 2163
2d18eae8
JR		 2164static int
2165scan_ipv4(const char *s, ovs_be32 *key, ovs_be32 *mask)
2166{
2167 int n;
72e8bf28 2168
2d18eae8
JR		 2169 if (ovs_scan(s, IP_SCAN_FMT"%n", IP_SCAN_ARGS(key), &n)) {
2170 int len = n;
2171
2172 if (mask) {
2173 if (ovs_scan(s + len, "/"IP_SCAN_FMT"%n",
2174 IP_SCAN_ARGS(mask), &n)) {
2175 len += n;
2176 } else {
2177 *mask = OVS_BE32_MAX;
e6cc0bab 2178 }
72e8bf28 2179 }
2d18eae8 2180 return len;
72e8bf28 2181 }
2d18eae8
JR		 2182 return 0;
2183}
72e8bf28 2184
2d18eae8
JR		 2185static int
2186scan_ipv6(const char *s, ovs_be32 (*key)[4], ovs_be32 (*mask)[4])
2187{
2188 int n;
2189 char ipv6_s[IPV6_SCAN_LEN + 1];
572f732a 2190
2d18eae8
JR		 2191 if (ovs_scan(s, IPV6_SCAN_FMT"%n", ipv6_s, &n)
2192 && inet_pton(AF_INET6, ipv6_s, key) == 1) {
2193 int len = n;
2194
2195 if (mask) {
2196 if (ovs_scan(s + len, "/"IPV6_SCAN_FMT"%n", ipv6_s, &n)
2197 && inet_pton(AF_INET6, ipv6_s, mask) == 1) {
2198 len += n;
2199 } else {
2200 memset(mask, 0xff, sizeof *mask);
78669073 2201 }
572f732a 2202 }
2d18eae8 2203 return len;
572f732a 2204 }
2d18eae8
JR		 2205 return 0;
2206}
572f732a 2207
2d18eae8
JR		 2208static int
2209scan_ipv6_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
2210{
2211 int key_, mask_;
2212 int n;
572f732a 2213
2d18eae8
JR		 2214 if (ovs_scan(s, "%i%n", &key_, &n)
2215 && (key_ & ~IPV6_LABEL_MASK) == 0) {
2216 int len = n;
29c7a2b2 2217
2d18eae8
JR		 2218 *key = htonl(key_);
2219 if (mask) {
2220 if (ovs_scan(s + len, "/%i%n", &mask_, &n)
2221 && (mask_ & ~IPV6_LABEL_MASK) == 0) {
2222 len += n;
2223 *mask = htonl(mask_);
2224 } else {
2225 *mask = htonl(IPV6_LABEL_MASK);
e6cc0bab 2226 }
35651d6a 2227 }
2d18eae8 2228 return len;
35651d6a 2229 }
2d18eae8
JR		 2230 return 0;
2231}
35651d6a 2232
2d18eae8
JR		 2233static int
2234scan_u8(const char *s, uint8_t *key, uint8_t *mask)
2235{
2236 int n;
3bffc610 2237
2d18eae8
JR		 2238 if (ovs_scan(s, "%"SCNi8"%n", key, &n)) {
2239 int len = n;
2240
2241 if (mask) {
2242 if (ovs_scan(s + len, "/%"SCNi8"%n", mask, &n)) {
2243 len += n;
2244 } else {
2245 *mask = UINT8_MAX;
e6cc0bab 2246 }
3bffc610 2247 }
2d18eae8 2248 return len;
3bffc610 2249 }
2d18eae8
JR		 2250 return 0;
2251}
3bffc610 2252
2d18eae8
JR		 2253static int
2254scan_u32(const char *s, uint32_t *key, uint32_t *mask)
2255{
2256 int n;
e6cc0bab 2257
2d18eae8
JR		 2258 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
2259 int len = n;
e6cc0bab 2260
2d18eae8
JR		 2261 if (mask) {
2262 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
2263 len += n;
2264 } else {
2265 *mask = UINT32_MAX;
e6cc0bab 2266 }
b2a60db8 2267 }
2d18eae8 2268 return len;
b2a60db8 2269 }
2d18eae8
JR		 2270 return 0;
2271}
b2a60db8 2272
2d18eae8
JR		 2273static int
2274scan_be16(const char *s, ovs_be16 *key, ovs_be16 *mask)
2275{
2276 uint16_t key_, mask_;
2277 int n;
3bffc610 2278
2d18eae8
JR		 2279 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
2280 int len = n;
e6cc0bab 2281
2d18eae8
JR		 2282 *key = htons(key_);
2283 if (mask) {
2284 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
2285 len += n;
2286 *mask = htons(mask_);
2287 } else {
2288 *mask = OVS_BE16_MAX;
e6cc0bab 2289 }
3bffc610 2290 }
2d18eae8 2291 return len;
3bffc610 2292 }
2d18eae8
JR		 2293 return 0;
2294}
3bffc610 2295
2d18eae8
JR		 2296static int
2297scan_be64(const char *s, ovs_be64 *key, ovs_be64 *mask)
2298{
2299 uint64_t key_, mask_;
2300 int n;
3bffc610 2301
2d18eae8
JR		 2302 if (ovs_scan(s, "%"SCNi64"%n", &key_, &n)) {
2303 int len = n;
2304
2305 *key = htonll(key_);
2306 if (mask) {
2307 if (ovs_scan(s + len, "/%"SCNi64"%n", &mask_, &n)) {
2308 len += n;
2309 *mask = htonll(mask_);
2310 } else {
2311 *mask = OVS_BE64_MAX;
e6cc0bab 2312 }
3bffc610 2313 }
2d18eae8 2314 return len;
3bffc610 2315 }
2d18eae8
JR		 2316 return 0;
2317}
3bffc610 2318
2d18eae8
JR		 2319static int
2320scan_tun_flags(const char *s, uint16_t *key, uint16_t *mask)
2321{
2322 uint32_t flags, fmask;
2323 int n;
3bffc610 2324
2d18eae8
JR		 2325 n = parse_flags(s, flow_tun_flag_to_string, &flags,
2326 FLOW_TNL_F_MASK, mask ? &fmask : NULL);
2327 if (n >= 0 && s[n] == ')') {
2328 *key = flags;
2329 if (mask) {
2330 *mask = fmask;
3bffc610 2331 }
2d18eae8 2332 return n + 1;
3bffc610 2333 }
2d18eae8
JR		 2334 return 0;
2335}
3bffc610 2336
2d18eae8
JR		 2337static int
2338scan_tcp_flags(const char *s, ovs_be16 *key, ovs_be16 *mask)
2339{
2340 uint32_t flags, fmask;
2341 int n;
b02475c5 2342
2d18eae8
JR		 2343 n = parse_flags(s, packet_tcp_flag_to_string, &flags,
2344 TCP_FLAGS(OVS_BE16_MAX), mask ? &fmask : NULL);
2345 if (n >= 0) {
2346 *key = htons(flags);
2347 if (mask) {
2348 *mask = htons(fmask);
b02475c5 2349 }
2d18eae8 2350 return n;
b02475c5 2351 }
2d18eae8
JR		 2352 return 0;
2353}
b02475c5 2354
2d18eae8
JR		 2355static int
2356scan_frag(const char *s, uint8_t *key, uint8_t *mask)
2357{
2358 int n;
2359 char frag[8];
2360 enum ovs_frag_type frag_type;
e6cc0bab 2361
2d18eae8
JR		 2362 if (ovs_scan(s, "%7[a-z]%n", frag, &n)
2363 && ovs_frag_type_from_string(frag, &frag_type)) {
2364 int len = n;
e6cc0bab 2365
2d18eae8
JR		 2366 *key = frag_type;
2367 if (mask) {
2368 *mask = UINT8_MAX;
3bffc610 2369 }
2d18eae8 2370 return len;
3bffc610 2371 }
2d18eae8
JR		 2372 return 0;
2373}
3bffc610 2374
2d18eae8
JR		 2375static int
2376scan_port(const char *s, uint32_t *key, uint32_t *mask,
2377 const struct simap *port_names)
2378{
2379 int n;
3bffc610 2380
2d18eae8
JR		 2381 if (ovs_scan(s, "%"SCNi32"%n", key, &n)) {
2382 int len = n;
e6cc0bab 2383
2d18eae8
JR		 2384 if (mask) {
2385 if (ovs_scan(s + len, "/%"SCNi32"%n", mask, &n)) {
2386 len += n;
2387 } else {
2388 *mask = UINT32_MAX;
e6cc0bab 2389 }
3bffc610 2390 }
2d18eae8
JR		 2391 return len;
2392 } else if (port_names) {
2393 const struct simap_node *node;
2394 int len;
e6cc0bab 2395
2d18eae8
JR		 2396 len = strcspn(s, ")");
2397 node = simap_find_len(port_names, s, len);
2398 if (node) {
2399 *key = node->data;
e6cc0bab
AZ		 2400
2401 if (mask) {
2d18eae8 2402 *mask = UINT32_MAX;
e6cc0bab 2403 }
2d18eae8 2404 return len;
3bffc610
BP		 2405 }
2406 }
2d18eae8
JR		 2407 return 0;
2408}
3bffc610 2409
2d18eae8
JR		 2410/* Helper for vlan parsing. */
2411struct ovs_key_vlan__ {
2412 ovs_be16 tci;
2413};
dc235f7f 2414
2d18eae8
JR		 2415static bool
2416set_be16_bf(ovs_be16 *bf, uint8_t bits, uint8_t offset, uint16_t value)
2417{
2418 const uint16_t mask = ((1U << bits) - 1) << offset;
ea2735d3 2419
2d18eae8
JR		 2420 if (value >> bits) {
2421 return false;
dc235f7f
JR		 2422 }
2423
2d18eae8
JR		 2424 *bf = htons((ntohs(*bf) & ~mask) | (value << offset));
2425 return true;
2426}
e6cc0bab 2427
2d18eae8
JR		 2428static int
2429scan_be16_bf(const char *s, ovs_be16 *key, ovs_be16 *mask, uint8_t bits,
2430 uint8_t offset)
2431{
2432 uint16_t key_, mask_;
2433 int n;
3bffc610 2434
2d18eae8
JR		 2435 if (ovs_scan(s, "%"SCNi16"%n", &key_, &n)) {
2436 int len = n;
e6cc0bab 2437
2d18eae8 2438 if (set_be16_bf(key, bits, offset, key_)) {
e6cc0bab 2439 if (mask) {
2d18eae8
JR		 2440 if (ovs_scan(s + len, "/%"SCNi16"%n", &mask_, &n)) {
2441 len += n;
2442
2443 if (!set_be16_bf(mask, bits, offset, mask_)) {
2444 return 0;
2445 }
2446 } else {
2447 *mask |= htons(((1U << bits) - 1) << offset);
2448 }
e6cc0bab 2449 }
2d18eae8 2450 return len;
3bffc610
BP		 2451 }
2452 }
2d18eae8
JR		 2453 return 0;
2454}
3bffc610 2455
2d18eae8
JR		 2456static int
2457scan_vid(const char *s, ovs_be16 *key, ovs_be16 *mask)
2458{
2459 return scan_be16_bf(s, key, mask, 12, VLAN_VID_SHIFT);
2460}
c6bcb685 2461
2d18eae8
JR		 2462static int
2463scan_pcp(const char *s, ovs_be16 *key, ovs_be16 *mask)
2464{
2465 return scan_be16_bf(s, key, mask, 3, VLAN_PCP_SHIFT);
2466}
c6bcb685 2467
2d18eae8
JR		 2468static int
2469scan_cfi(const char *s, ovs_be16 *key, ovs_be16 *mask)
2470{
2471 return scan_be16_bf(s, key, mask, 1, VLAN_CFI_SHIFT);
2472}
c6bcb685 2473
2d18eae8
JR		 2474/* For MPLS. */
2475static bool
2476set_be32_bf(ovs_be32 *bf, uint8_t bits, uint8_t offset, uint32_t value)
2477{
2478 const uint32_t mask = ((1U << bits) - 1) << offset;
c6bcb685 2479
2d18eae8
JR		 2480 if (value >> bits) {
2481 return false;
c6bcb685
JS		 2482 }
2483
2d18eae8
JR		 2484 *bf = htonl((ntohl(*bf) & ~mask) | (value << offset));
2485 return true;
2486}
3bffc610 2487
2d18eae8
JR		 2488static int
2489scan_be32_bf(const char *s, ovs_be32 *key, ovs_be32 *mask, uint8_t bits,
2490 uint8_t offset)
2491{
2492 uint32_t key_, mask_;
2493 int n;
3bffc610 2494
2d18eae8
JR		 2495 if (ovs_scan(s, "%"SCNi32"%n", &key_, &n)) {
2496 int len = n;
e6cc0bab 2497
2d18eae8 2498 if (set_be32_bf(key, bits, offset, key_)) {
e6cc0bab 2499 if (mask) {
2d18eae8
JR		 2500 if (ovs_scan(s + len, "/%"SCNi32"%n", &mask_, &n)) {
2501 len += n;
3bffc610 2502
2d18eae8
JR		 2503 if (!set_be32_bf(mask, bits, offset, mask_)) {
2504 return 0;
2505 }
2506 } else {
2507 *mask |= htonl(((1U << bits) - 1) << offset);
2508 }
e6cc0bab 2509 }
2d18eae8 2510 return len;
3bffc610
BP		 2511 }
2512 }
2d18eae8
JR		 2513 return 0;
2514}
3bffc610 2515
2d18eae8
JR		 2516static int
2517scan_mpls_label(const char *s, ovs_be32 *key, ovs_be32 *mask)
2518{
2519 return scan_be32_bf(s, key, mask, 20, MPLS_LABEL_SHIFT);
2520}
3bffc610 2521
2d18eae8
JR		 2522static int
2523scan_mpls_tc(const char *s, ovs_be32 *key, ovs_be32 *mask)
2524{
2525 return scan_be32_bf(s, key, mask, 3, MPLS_TC_SHIFT);
2526}
e6cc0bab 2527
2d18eae8
JR		 2528static int
2529scan_mpls_ttl(const char *s, ovs_be32 *key, ovs_be32 *mask)
2530{
2531 return scan_be32_bf(s, key, mask, 8, MPLS_TTL_SHIFT);
2532}
e6cc0bab 2533
2d18eae8
JR		 2534static int
2535scan_mpls_bos(const char *s, ovs_be32 *key, ovs_be32 *mask)
2536{
2537 return scan_be32_bf(s, key, mask, 1, MPLS_BOS_SHIFT);
2538}
2539
2540/* ATTR is compile-time constant, so only the case with correct data type
2541 * will be used. However, the compiler complains about the data type for
2542 * the other cases, so we must cast to make the compiler silent. */
2543#define SCAN_PUT_ATTR(BUF, ATTR, DATA) \
2544 if ((ATTR) == OVS_KEY_ATTR_TUNNEL) { \
2545 tun_key_to_attr(BUF, (const struct flow_tnl *)(void *)&(DATA)); \
2546 } else { \
2547 nl_msg_put_unspec(BUF, ATTR, &(DATA), sizeof (DATA)); \
2548 }
2549
2550#define SCAN_IF(NAME) \
2551 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
2552 const char *start = s; \
2553 int len; \
2554 \
2555 s += strlen(NAME)
2556
2557/* Usually no special initialization is needed. */
2558#define SCAN_BEGIN(NAME, TYPE) \
2559 SCAN_IF(NAME); \
2560 TYPE skey, smask; \
2561 memset(&skey, 0, sizeof skey); \
2562 memset(&smask, 0, sizeof smask); \
2563 do { \
2564 len = 0;
2565
2566/* VLAN needs special initialization. */
2567#define SCAN_BEGIN_INIT(NAME, TYPE, KEY_INIT, MASK_INIT) \
2568 SCAN_IF(NAME); \
2569 TYPE skey = KEY_INIT; \
2570 TYPE smask = MASK_INIT; \
2571 do { \
2572 len = 0;
2573
2574/* Scan unnamed entry as 'TYPE' */
2575#define SCAN_TYPE(TYPE, KEY, MASK) \
2576 len = scan_##TYPE(s, KEY, MASK); \
2577 if (len == 0) { \
2578 return -EINVAL; \
2579 } \
2580 s += len
2581
2582/* Scan named ('NAME') entry 'FIELD' as 'TYPE'. */
2583#define SCAN_FIELD(NAME, TYPE, FIELD) \
2584 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
2585 s += strlen(NAME); \
2586 SCAN_TYPE(TYPE, &skey.FIELD, mask ? &smask.FIELD : NULL); \
2587 continue; \
2588 }
2589
2590#define SCAN_FINISH() \
2591 } while (*s++ == ',' && len != 0); \
2592 if (s[-1] != ')') { \
2593 return -EINVAL; \
2594 }
2595
2596#define SCAN_FINISH_SINGLE() \
2597 } while (false); \
2598 if (*s++ != ')') { \
2599 return -EINVAL; \
2600 }
2601
2602#define SCAN_PUT(ATTR) \
2603 if (!mask || !is_all_zeros(&smask, sizeof smask)) { \
2604 SCAN_PUT_ATTR(key, ATTR, skey); \
2605 if (mask) { \
2606 SCAN_PUT_ATTR(mask, ATTR, smask); \
2607 } \
2608 }
2609
2610#define SCAN_END(ATTR) \
2611 SCAN_FINISH(); \
2612 SCAN_PUT(ATTR); \
2613 return s - start; \
2614 }
2615
2616#define SCAN_END_SINGLE(ATTR) \
2617 SCAN_FINISH_SINGLE(); \
2618 SCAN_PUT(ATTR); \
2619 return s - start; \
2620 }
2621
2622#define SCAN_SINGLE(NAME, TYPE, SCAN_AS, ATTR) \
2623 SCAN_BEGIN(NAME, TYPE) { \
2624 SCAN_TYPE(SCAN_AS, &skey, &smask); \
2625 } SCAN_END_SINGLE(ATTR)
2626
2627#define SCAN_SINGLE_NO_MASK(NAME, TYPE, SCAN_AS, ATTR) \
2628 SCAN_BEGIN(NAME, TYPE) { \
2629 SCAN_TYPE(SCAN_AS, &skey, NULL); \
2630 } SCAN_END_SINGLE(ATTR)
2631
2632/* scan_port needs one extra argument. */
2633#define SCAN_SINGLE_PORT(NAME, TYPE, ATTR) \
2634 SCAN_BEGIN(NAME, TYPE) { \
2635 len = scan_port(s, &skey, &smask, port_names); \
2636 if (len == 0) { \
2637 return -EINVAL; \
2638 } \
2639 s += len; \
2640 } SCAN_END_SINGLE(ATTR)
3bffc610 2641
2d18eae8
JR		 2642static int
2643parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
2644 struct ofpbuf *key, struct ofpbuf *mask)
2645{
2646 SCAN_SINGLE("skb_priority(", uint32_t, u32, OVS_KEY_ATTR_PRIORITY);
2647 SCAN_SINGLE("skb_mark(", uint32_t, u32, OVS_KEY_ATTR_SKB_MARK);
2648 SCAN_SINGLE_NO_MASK("recirc_id(", uint32_t, u32, OVS_KEY_ATTR_RECIRC_ID);
2649 SCAN_SINGLE("dp_hash(", uint32_t, u32, OVS_KEY_ATTR_DP_HASH);
2650
2651 SCAN_BEGIN("tunnel(", struct flow_tnl) {
2652 SCAN_FIELD("tun_id=", be64, tun_id);
2653 SCAN_FIELD("src=", ipv4, ip_src);
2654 SCAN_FIELD("dst=", ipv4, ip_dst);
2655 SCAN_FIELD("tos=", u8, ip_tos);
2656 SCAN_FIELD("ttl=", u8, ip_ttl);
2657 SCAN_FIELD("tp_src=", be16, tp_src);
2658 SCAN_FIELD("tp_dst=", be16, tp_dst);
2659 SCAN_FIELD("flags(", tun_flags, flags);
2660 } SCAN_END(OVS_KEY_ATTR_TUNNEL);
2661
2662 SCAN_SINGLE_PORT("in_port(", uint32_t, OVS_KEY_ATTR_IN_PORT);
2663
2664 SCAN_BEGIN("eth(", struct ovs_key_ethernet) {
2665 SCAN_FIELD("src=", eth, eth_src);
2666 SCAN_FIELD("dst=", eth, eth_dst);
2667 } SCAN_END(OVS_KEY_ATTR_ETHERNET);
2668
2669 SCAN_BEGIN_INIT("vlan(", struct ovs_key_vlan__,
2670 { htons(VLAN_CFI) }, { htons(VLAN_CFI) }) {
2671 SCAN_FIELD("vid=", vid, tci);
2672 SCAN_FIELD("pcp=", pcp, tci);
2673 SCAN_FIELD("cfi=", cfi, tci);
2674 } SCAN_END(OVS_KEY_ATTR_VLAN);
2675
2676 SCAN_SINGLE("eth_type(", ovs_be16, be16, OVS_KEY_ATTR_ETHERTYPE);
2677
2678 SCAN_BEGIN("mpls(", struct ovs_key_mpls) {
2679 SCAN_FIELD("label=", mpls_label, mpls_lse);
2680 SCAN_FIELD("tc=", mpls_tc, mpls_lse);
2681 SCAN_FIELD("ttl=", mpls_ttl, mpls_lse);
2682 SCAN_FIELD("bos=", mpls_bos, mpls_lse);
2683 } SCAN_END(OVS_KEY_ATTR_MPLS);
2684
2685 SCAN_BEGIN("ipv4(", struct ovs_key_ipv4) {
2686 SCAN_FIELD("src=", ipv4, ipv4_src);
2687 SCAN_FIELD("dst=", ipv4, ipv4_dst);
2688 SCAN_FIELD("proto=", u8, ipv4_proto);
2689 SCAN_FIELD("tos=", u8, ipv4_tos);
2690 SCAN_FIELD("ttl=", u8, ipv4_ttl);
2691 SCAN_FIELD("frag=", frag, ipv4_frag);
2692 } SCAN_END(OVS_KEY_ATTR_IPV4);
2693
2694 SCAN_BEGIN("ipv6(", struct ovs_key_ipv6) {
2695 SCAN_FIELD("src=", ipv6, ipv6_src);
2696 SCAN_FIELD("dst=", ipv6, ipv6_dst);
2697 SCAN_FIELD("label=", ipv6_label, ipv6_label);
2698 SCAN_FIELD("proto=", u8, ipv6_proto);
2699 SCAN_FIELD("tclass=", u8, ipv6_tclass);
2700 SCAN_FIELD("hlimit=", u8, ipv6_hlimit);
2701 SCAN_FIELD("frag=", frag, ipv6_frag);
2702 } SCAN_END(OVS_KEY_ATTR_IPV6);
2703
2704 SCAN_BEGIN("tcp(", struct ovs_key_tcp) {
2705 SCAN_FIELD("src=", be16, tcp_src);
2706 SCAN_FIELD("dst=", be16, tcp_dst);
2707 } SCAN_END(OVS_KEY_ATTR_TCP);
2708
2709 SCAN_SINGLE("tcp_flags(", ovs_be16, tcp_flags, OVS_KEY_ATTR_TCP_FLAGS);
2710
2711 SCAN_BEGIN("udp(", struct ovs_key_udp) {
2712 SCAN_FIELD("src=", be16, udp_src);
2713 SCAN_FIELD("dst=", be16, udp_dst);
2714 } SCAN_END(OVS_KEY_ATTR_UDP);
2715
2716 SCAN_BEGIN("sctp(", struct ovs_key_sctp) {
2717 SCAN_FIELD("src=", be16, sctp_src);
2718 SCAN_FIELD("dst=", be16, sctp_dst);
2719 } SCAN_END(OVS_KEY_ATTR_SCTP);
2720
2721 SCAN_BEGIN("icmp(", struct ovs_key_icmp) {
2722 SCAN_FIELD("type=", u8, icmp_type);
2723 SCAN_FIELD("code=", u8, icmp_code);
2724 } SCAN_END(OVS_KEY_ATTR_ICMP);
2725
2726 SCAN_BEGIN("icmpv6(", struct ovs_key_icmpv6) {
2727 SCAN_FIELD("type=", u8, icmpv6_type);
2728 SCAN_FIELD("code=", u8, icmpv6_code);
2729 } SCAN_END(OVS_KEY_ATTR_ICMPV6);
2730
2731 SCAN_BEGIN("arp(", struct ovs_key_arp) {
2732 SCAN_FIELD("sip=", ipv4, arp_sip);
2733 SCAN_FIELD("tip=", ipv4, arp_tip);
2734 SCAN_FIELD("op=", be16, arp_op);
2735 SCAN_FIELD("sha=", eth, arp_sha);
2736 SCAN_FIELD("tha=", eth, arp_tha);
2737 } SCAN_END(OVS_KEY_ATTR_ARP);
2738
2739 SCAN_BEGIN("nd(", struct ovs_key_nd) {
2740 SCAN_FIELD("target=", ipv6, nd_target);
2741 SCAN_FIELD("sll=", eth, nd_sll);
2742 SCAN_FIELD("tll=", eth, nd_tll);
2743 } SCAN_END(OVS_KEY_ATTR_ND);
2744
2745 /* Encap open-coded. */
fea393b1
BP		 2746 if (!strncmp(s, "encap(", 6)) {
2747 const char *start = s;
e6cc0bab 2748 size_t encap, encap_mask = 0;
fea393b1
BP		 2749
2750 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
e6cc0bab
AZ		 2751 if (mask) {
2752 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2753 }
fea393b1
BP		 2754
2755 s += 6;
2756 for (;;) {
2757 int retval;
2758
2759 s += strspn(s, ", \t\r\n");
2760 if (!*s) {
2761 return -EINVAL;
2762 } else if (*s == ')') {
2763 break;
2764 }
2765
e6cc0bab 2766 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
fea393b1
BP		 2767 if (retval < 0) {
2768 return retval;
2769 }
2770 s += retval;
2771 }
2772 s++;
2773
2774 nl_msg_end_nested(key, encap);
e6cc0bab
AZ		 2775 if (mask) {
2776 nl_msg_end_nested(mask, encap_mask);
2777 }
fea393b1
BP		 2778
2779 return s - start;
2780 }
2781
3bffc610
BP		 2782 return -EINVAL;
2783}
2784
df2c07f4
JP		 2785/* Parses the string representation of a datapath flow key, in the
2786 * format output by odp_flow_key_format(). Returns 0 if successful,
2787 * otherwise a positive errno value. On success, the flow key is
2788 * appended to 'key' as a series of Netlink attributes. On failure, no
2789 * data is appended to 'key'. Either way, 'key''s data might be
2790 * reallocated.
3bffc610 2791 *
44bac24b
BP		 2792 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2793 * to a port number. (Port names may be used instead of port numbers in
2794 * in_port.)
b2a60db8 2795 *
3bffc610
BP		 2796 * On success, the attributes appended to 'key' are individually syntactically
2797 * valid, but they may not be valid as a sequence. 'key' might, for example,
34118cae 2798 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
3bffc610 2799int
e6cc0bab
AZ		 2800odp_flow_from_string(const char *s, const struct simap *port_names,
2801 struct ofpbuf *key, struct ofpbuf *mask)
3bffc610 2802{
1f317cb5 2803 const size_t old_size = ofpbuf_size(key);
3bffc610
BP		 2804 for (;;) {
2805 int retval;
2806
7202cbe5 2807 s += strspn(s, delimiters);
3bffc610
BP		 2808 if (!*s) {
2809 return 0;
2810 }
2811
e6cc0bab 2812 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
3bffc610 2813 if (retval < 0) {
1f317cb5 2814 ofpbuf_set_size(key, old_size);
3bffc610
BP		 2815 return -retval;
2816 }
2817 s += retval;
2818 }
2819
2820 return 0;
2821}
2822
7257b535 2823static uint8_t
3cea18ec 2824ovs_to_odp_frag(uint8_t nw_frag, bool is_mask)
7257b535 2825{
3cea18ec
JR		 2826 if (is_mask) {
2827 /* Netlink interface 'enum ovs_frag_type' is an 8-bit enumeration type,
2828 * not a set of flags or bitfields. Hence, if the struct flow nw_frag
2829 * mask, which is a set of bits, has the FLOW_NW_FRAG_ANY as zero, we
2830 * must use a zero mask for the netlink frag field, and all ones mask
2831 * otherwise. */
2832 return (nw_frag & FLOW_NW_FRAG_ANY) ? UINT8_MAX : 0;
2833 }
2c0f0be1
JR		 2834 return !(nw_frag & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_NONE
2835 : nw_frag & FLOW_NW_FRAG_LATER ? OVS_FRAG_TYPE_LATER
2836 : OVS_FRAG_TYPE_FIRST;
7257b535
BP		 2837}
2838
3cea18ec
JR		 2839static void get_ethernet_key(const struct flow *, struct ovs_key_ethernet *);
2840static void put_ethernet_key(const struct ovs_key_ethernet *, struct flow *);
2841static void get_ipv4_key(const struct flow *, struct ovs_key_ipv4 *,
2842 bool is_mask);
2843static void put_ipv4_key(const struct ovs_key_ipv4 *, struct flow *,
2844 bool is_mask);
2845static void get_ipv6_key(const struct flow *, struct ovs_key_ipv6 *,
2846 bool is_mask);
2847static void put_ipv6_key(const struct ovs_key_ipv6 *, struct flow *,
2848 bool is_mask);
2849static void get_arp_key(const struct flow *, struct ovs_key_arp *);
2850static void put_arp_key(const struct ovs_key_arp *, struct flow *);
2851
2852/* These share the same layout. */
2853union ovs_key_tp {
2854 struct ovs_key_tcp tcp;
2855 struct ovs_key_udp udp;
2856 struct ovs_key_sctp sctp;
2857};
2858
2859static void get_tp_key(const struct flow *, union ovs_key_tp *);
2860static void put_tp_key(const union ovs_key_tp *, struct flow *);
431495b1 2861
661cbcd5 2862static void
fbfe01de
AZ		 2863odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
2864 const struct flow *mask, odp_port_t odp_in_port,
7ce2769e 2865 size_t max_mpls_depth, bool recirc, bool export_mask)
14608a15 2866{
df2c07f4 2867 struct ovs_key_ethernet *eth_key;
fea393b1 2868 size_t encap;
fbfe01de 2869 const struct flow *data = export_mask ? mask : flow;
661cbcd5 2870
54bb0348 2871 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
abff858b 2872
fbfe01de 2873 if (flow->tunnel.ip_dst || export_mask) {
661cbcd5 2874 tun_key_to_attr(buf, &data->tunnel);
36956a7d
BP		 2875 }
2876
1362e248 2877 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
72e8bf28 2878
7ce2769e 2879 if (recirc) {
572f732a 2880 nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID, data->recirc_id);
572f732a
AZ		 2881 nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH, data->dp_hash);
2882 }
2883
661cbcd5
JP		 2884 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2885 * is not the magical value "ODPP_NONE". */
fbfe01de 2886 if (export_mask || odp_in_port != ODPP_NONE) {
4e022ec0 2887 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
18886b60 2888 }
36956a7d 2889
df2c07f4 2890 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
36956a7d 2891 sizeof *eth_key);
3cea18ec 2892 get_ethernet_key(data, eth_key);
36956a7d 2893
8ddc056d 2894 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
fbfe01de 2895 if (export_mask) {
b8266395 2896 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
bed7d6a1
JP		 2897 } else {
2898 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2899 }
661cbcd5 2900 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
fea393b1 2901 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
8ddc056d
BP		 2902 if (flow->vlan_tci == htons(0)) {
2903 goto unencap;
2904 }
fea393b1
BP		 2905 } else {
2906 encap = 0;
36956a7d
BP		 2907 }
2908
2909 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
661cbcd5
JP		 2910 /* For backwards compatibility with kernels that don't support
2911 * wildcarding, the following convention is used to encode the
2912 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2913 *
2914 * key mask matches
2915 * -------- -------- -------
2916 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2917 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2918 * <none> 0xffff Any non-Ethernet II frame (except valid
2919 * 802.3 SNAP packet with valid eth_type).
2920 */
fbfe01de 2921 if (export_mask) {
b8266395 2922 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
661cbcd5 2923 }
fea393b1 2924 goto unencap;
36956a7d
BP		 2925 }
2926
661cbcd5 2927 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
36956a7d
BP		 2928
2929 if (flow->dl_type == htons(ETH_TYPE_IP)) {
df2c07f4 2930 struct ovs_key_ipv4 *ipv4_key;
36956a7d 2931
df2c07f4 2932 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
36956a7d 2933 sizeof *ipv4_key);
3cea18ec 2934 get_ipv4_key(data, ipv4_key, export_mask);
d31f1109 2935 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
df2c07f4 2936 struct ovs_key_ipv6 *ipv6_key;
d31f1109 2937
df2c07f4 2938 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
d31f1109 2939 sizeof *ipv6_key);
3cea18ec 2940 get_ipv6_key(data, ipv6_key, export_mask);
8087f5ff
MM		 2941 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2942 flow->dl_type == htons(ETH_TYPE_RARP)) {
df2c07f4 2943 struct ovs_key_arp *arp_key;
d31f1109 2944
3cea18ec
JR		 2945 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
2946 sizeof *arp_key);
2947 get_arp_key(data, arp_key);
b0a17866 2948 } else if (eth_type_mpls(flow->dl_type)) {
b02475c5 2949 struct ovs_key_mpls *mpls_key;
8bfd0fda 2950 int i, n;
b02475c5 2951
8bfd0fda
BP		 2952 n = flow_count_mpls_labels(flow, NULL);
2953 n = MIN(n, max_mpls_depth);
b02475c5 2954 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
8bfd0fda
BP		 2955 n * sizeof *mpls_key);
2956 for (i = 0; i < n; i++) {
2957 mpls_key[i].mpls_lse = data->mpls_lse[i];
2958 }
b02475c5
SH		 2959 }
2960
48cecbdc 2961 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
6767a2cc 2962 if (flow->nw_proto == IPPROTO_TCP) {
3cea18ec 2963 union ovs_key_tp *tcp_key;
36956a7d 2964
df2c07f4 2965 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
36956a7d 2966 sizeof *tcp_key);
3cea18ec 2967 get_tp_key(data, tcp_key);
dc235f7f
JR		 2968 if (data->tcp_flags) {
2969 nl_msg_put_be16(buf, OVS_KEY_ATTR_TCP_FLAGS, data->tcp_flags);
2970 }
6767a2cc 2971 } else if (flow->nw_proto == IPPROTO_UDP) {
3cea18ec 2972 union ovs_key_tp *udp_key;
36956a7d 2973
df2c07f4 2974 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
36956a7d 2975 sizeof *udp_key);
3cea18ec 2976 get_tp_key(data, udp_key);
c6bcb685 2977 } else if (flow->nw_proto == IPPROTO_SCTP) {
3cea18ec 2978 union ovs_key_tp *sctp_key;
c6bcb685
JS		 2979
2980 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2981 sizeof *sctp_key);
3cea18ec 2982 get_tp_key(data, sctp_key);
d31f1109
JP		 2983 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2984 && flow->nw_proto == IPPROTO_ICMP) {
df2c07f4 2985 struct ovs_key_icmp *icmp_key;
36956a7d 2986
df2c07f4 2987 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
36956a7d 2988 sizeof *icmp_key);
661cbcd5
JP		 2989 icmp_key->icmp_type = ntohs(data->tp_src);
2990 icmp_key->icmp_code = ntohs(data->tp_dst);
d31f1109
JP		 2991 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2992 && flow->nw_proto == IPPROTO_ICMPV6) {
df2c07f4 2993 struct ovs_key_icmpv6 *icmpv6_key;
d31f1109 2994
df2c07f4 2995 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
d31f1109 2996 sizeof *icmpv6_key);
661cbcd5
JP		 2997 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2998 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
685a51a5 2999
d8efdda8
JS		 3000 if (flow->tp_dst == htons(0)
3001 && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
3002 || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
3003 && (!export_mask || (data->tp_src == htons(0xffff)
3004 && data->tp_dst == htons(0xffff)))) {
6f8dbd27 3005
df2c07f4 3006 struct ovs_key_nd *nd_key;
685a51a5 3007
df2c07f4 3008 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
685a51a5 3009 sizeof *nd_key);
661cbcd5 3010 memcpy(nd_key->nd_target, &data->nd_target,
685a51a5 3011 sizeof nd_key->nd_target);
661cbcd5
JP		 3012 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
3013 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
685a51a5 3014 }
36956a7d 3015 }
36956a7d 3016 }
fea393b1
BP		 3017
3018unencap:
3019 if (encap) {
3020 nl_msg_end_nested(buf, encap);
3021 }
36956a7d 3022}
661cbcd5
JP		 3023
3024/* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
3025 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
3026 * number rather than a datapath port number). Instead, if 'odp_in_port'
3027 * is anything other than ODPP_NONE, it is included in 'buf' as the input
3028 * port.
3029 *
3030 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
7ce2769e
JS		 3031 * capable of being expanded to allow for that much space.
3032 *
3033 * 'recirc' indicates support for recirculation fields. If this is true, then
3034 * these fields will always be serialised. */
661cbcd5
JP		 3035void
3036odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
7ce2769e
JS		 3037 const struct flow *mask, odp_port_t odp_in_port,
3038 bool recirc)
661cbcd5 3039{
7ce2769e
JS		 3040 odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, recirc,
3041 false);
661cbcd5
JP		 3042}
3043
3044/* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
3045 * 'buf'. 'flow' is used as a template to determine how to interpret
3046 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
3047 * it doesn't indicate whether the other fields should be interpreted as
3048 * ARP, IPv4, IPv6, etc.
3049 *
3050 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
7ce2769e
JS		 3051 * capable of being expanded to allow for that much space.
3052 *
3053 * 'recirc' indicates support for recirculation fields. If this is true, then
3054 * these fields will always be serialised. */
661cbcd5
JP		 3055void
3056odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
8bfd0fda 3057 const struct flow *flow, uint32_t odp_in_port_mask,
7ce2769e 3058 size_t max_mpls_depth, bool recirc)
661cbcd5 3059{
7ce2769e
JS		 3060 odp_flow_key_from_flow__(buf, flow, mask, u32_to_odp(odp_in_port_mask),
3061 max_mpls_depth, recirc, true);
661cbcd5 3062}
36956a7d 3063
758c456d
JR		 3064/* Generate ODP flow key from the given packet metadata */
3065void
3066odp_key_from_pkt_metadata(struct ofpbuf *buf, const struct pkt_metadata *md)
3067{
3068 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, md->skb_priority);
3069
3070 if (md->tunnel.ip_dst) {
3071 tun_key_to_attr(buf, &md->tunnel);
3072 }
3073
3074 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, md->pkt_mark);
3075
3076 /* Add an ingress port attribute if 'odp_in_port' is not the magical
3077 * value "ODPP_NONE". */
b5e7e61a
AZ		 3078 if (md->in_port.odp_port != ODPP_NONE) {
3079 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, md->in_port.odp_port);
758c456d
JR		 3080 }
3081}
3082
3083/* Generate packet metadata from the given ODP flow key. */
3084void
3085odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
3086 struct pkt_metadata *md)
3087{
3088 const struct nlattr *nla;
3089 size_t left;
3090 uint32_t wanted_attrs = 1u << OVS_KEY_ATTR_PRIORITY |
3091 1u << OVS_KEY_ATTR_SKB_MARK | 1u << OVS_KEY_ATTR_TUNNEL |
3092 1u << OVS_KEY_ATTR_IN_PORT;
3093
b5e7e61a 3094 *md = PKT_METADATA_INITIALIZER(ODPP_NONE);
758c456d
JR		 3095
3096 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
3097 uint16_t type = nl_attr_type(nla);
3098 size_t len = nl_attr_get_size(nla);
3099 int expected_len = odp_flow_key_attr_len(type);
3100
3101 if (len != expected_len && expected_len >= 0) {
3102 continue;
3103 }
3104
572f732a
AZ		 3105 switch (type) {
3106 case OVS_KEY_ATTR_RECIRC_ID:
3107 md->recirc_id = nl_attr_get_u32(nla);
3108 wanted_attrs &= ~(1u << OVS_KEY_ATTR_RECIRC_ID);
3109 break;
3110 case OVS_KEY_ATTR_DP_HASH:
3111 md->dp_hash = nl_attr_get_u32(nla);
3112 wanted_attrs &= ~(1u << OVS_KEY_ATTR_DP_HASH);
3113 break;
3114 case OVS_KEY_ATTR_PRIORITY:
758c456d
JR		 3115 md->skb_priority = nl_attr_get_u32(nla);
3116 wanted_attrs &= ~(1u << OVS_KEY_ATTR_PRIORITY);
572f732a
AZ		 3117 break;
3118 case OVS_KEY_ATTR_SKB_MARK:
758c456d
JR		 3119 md->pkt_mark = nl_attr_get_u32(nla);
3120 wanted_attrs &= ~(1u << OVS_KEY_ATTR_SKB_MARK);
572f732a
AZ		 3121 break;
3122 case OVS_KEY_ATTR_TUNNEL: {
758c456d
JR		 3123 enum odp_key_fitness res;
3124
3125 res = odp_tun_key_from_attr(nla, &md->tunnel);
3126 if (res == ODP_FIT_ERROR) {
3127 memset(&md->tunnel, 0, sizeof md->tunnel);
3128 } else if (res == ODP_FIT_PERFECT) {
3129 wanted_attrs &= ~(1u << OVS_KEY_ATTR_TUNNEL);
3130 }
572f732a
AZ		 3131 break;
3132 }
3133 case OVS_KEY_ATTR_IN_PORT:
b5e7e61a 3134 md->in_port.odp_port = nl_attr_get_odp_port(nla);
758c456d 3135 wanted_attrs &= ~(1u << OVS_KEY_ATTR_IN_PORT);
572f732a
AZ		 3136 break;
3137 default:
3138 break;
758c456d
JR		 3139 }
3140
3141 if (!wanted_attrs) {
3142 return; /* Have everything. */
3143 }
3144 }
3145}
3146
b0f7b9b5
BP		 3147uint32_t
3148odp_flow_key_hash(const struct nlattr *key, size_t key_len)
3149{
3150 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
db5a1019
AW		 3151 return hash_words(ALIGNED_CAST(const uint32_t *, key),
3152 key_len / sizeof(uint32_t), 0);
b0f7b9b5
BP		 3153}
3154
34118cae
BP		 3155static void
3156log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
b0f7b9b5 3157 uint64_t attrs, int out_of_range_attr,
34118cae
BP		 3158 const struct nlattr *key, size_t key_len)
3159{
3160 struct ds s;
3161 int i;
3162
b0f7b9b5 3163 if (VLOG_DROP_DBG(rl)) {
34118cae
BP		 3164 return;
3165 }
3166
3167 ds_init(&s);
b0f7b9b5
BP		 3168 for (i = 0; i < 64; i++) {
3169 if (attrs & (UINT64_C(1) << i)) {
e6603631
BP		 3170 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3171
3172 ds_put_format(&s, " %s",
3173 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
34118cae
BP		 3174 }
3175 }
b0f7b9b5
BP		 3176 if (out_of_range_attr) {
3177 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
3178 }
34118cae
BP		 3179
3180 ds_put_cstr(&s, ": ");
3181 odp_flow_key_format(key, key_len, &s);
3182
b0f7b9b5 3183 VLOG_DBG("%s:%s", title, ds_cstr(&s));
34118cae
BP		 3184 ds_destroy(&s);
3185}
3186
3cea18ec
JR		 3187static uint8_t
3188odp_to_ovs_frag(uint8_t odp_frag, bool is_mask)
7257b535 3189{
34118cae
BP		 3190 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3191
3cea18ec
JR		 3192 if (is_mask) {
3193 return odp_frag ? FLOW_NW_FRAG_MASK : 0;
3194 }
3195
9e44d715 3196 if (odp_frag > OVS_FRAG_TYPE_LATER) {
b0f7b9b5 3197 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
3cea18ec 3198 return 0xff; /* Error. */
7257b535
BP		 3199 }
3200
3cea18ec
JR		 3201 return (odp_frag == OVS_FRAG_TYPE_NONE) ? 0
3202 : (odp_frag == OVS_FRAG_TYPE_FIRST) ? FLOW_NW_FRAG_ANY
3203 : FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER;
7257b535
BP		 3204}
3205
b0f7b9b5 3206static bool
fea393b1 3207parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
b0f7b9b5
BP		 3208 const struct nlattr *attrs[], uint64_t *present_attrsp,
3209 int *out_of_range_attrp)
36956a7d 3210{
b0f7b9b5 3211 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
36956a7d 3212 const struct nlattr *nla;
34118cae 3213 uint64_t present_attrs;
36956a7d
BP		 3214 size_t left;
3215
2aef1214 3216 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
34118cae 3217 present_attrs = 0;
b0f7b9b5 3218 *out_of_range_attrp = 0;
36956a7d 3219 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
34118cae
BP		 3220 uint16_t type = nl_attr_type(nla);
3221 size_t len = nl_attr_get_size(nla);
3222 int expected_len = odp_flow_key_attr_len(type);
3223
b0f7b9b5 3224 if (len != expected_len && expected_len >= 0) {
e6603631
BP		 3225 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3226
34582733 3227 VLOG_ERR_RL(&rl, "attribute %s has length %"PRIuSIZE" but should have "
e6603631
BP		 3228 "length %d", ovs_key_attr_to_string(type, namebuf,
3229 sizeof namebuf),
b0f7b9b5
BP		 3230 len, expected_len);
3231 return false;
34118cae
BP		 3232 }
3233
2aef1214 3234 if (type > OVS_KEY_ATTR_MAX) {
b0f7b9b5
BP		 3235 *out_of_range_attrp = type;
3236 } else {
3237 if (present_attrs & (UINT64_C(1) << type)) {
e6603631
BP		 3238 char namebuf[OVS_KEY_ATTR_BUFSIZE];
3239
b0f7b9b5 3240 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
e6603631
BP		 3241 ovs_key_attr_to_string(type,
3242 namebuf, sizeof namebuf));
b0f7b9b5
BP		 3243 return false;
3244 }
3245
3246 present_attrs |= UINT64_C(1) << type;
3247 attrs[type] = nla;
3248 }
34118cae
BP		 3249 }
3250 if (left) {
3251 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
b0f7b9b5 3252 return false;
34118cae
BP		 3253 }
3254
fea393b1 3255 *present_attrsp = present_attrs;
b0f7b9b5 3256 return true;
fea393b1
BP		 3257}
3258
b0f7b9b5
BP		 3259static enum odp_key_fitness
3260check_expectations(uint64_t present_attrs, int out_of_range_attr,
3261 uint64_t expected_attrs,
fea393b1
BP		 3262 const struct nlattr *key, size_t key_len)
3263{
3264 uint64_t missing_attrs;
3265 uint64_t extra_attrs;
3266
3267 missing_attrs = expected_attrs & ~present_attrs;
3268 if (missing_attrs) {
b0f7b9b5
BP		 3269 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3270 log_odp_key_attributes(&rl, "expected but not present",
3271 missing_attrs, 0, key, key_len);
3272 return ODP_FIT_TOO_LITTLE;
fea393b1
BP		 3273 }
3274
3275 extra_attrs = present_attrs & ~expected_attrs;
b0f7b9b5
BP		 3276 if (extra_attrs || out_of_range_attr) {
3277 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
3278 log_odp_key_attributes(&rl, "present but not expected",
3279 extra_attrs, out_of_range_attr, key, key_len);
3280 return ODP_FIT_TOO_MUCH;
fea393b1
BP		 3281 }
3282
b0f7b9b5 3283 return ODP_FIT_PERFECT;
fea393b1
BP		 3284}
3285
b0f7b9b5
BP		 3286static bool
3287parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3288 uint64_t present_attrs, uint64_t *expected_attrs,
4a221615 3289 struct flow *flow, const struct flow *src_flow)
fea393b1
BP		 3290{
3291 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615 3292 bool is_mask = flow != src_flow;
36956a7d 3293
fea393b1 3294 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
34118cae 3295 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
4a221615 3296 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
34118cae
BP		 3297 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
3298 ntohs(flow->dl_type));
b0f7b9b5 3299 return false;
34118cae 3300 }
4a221615
GY		 3301 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
3302 flow->dl_type != htons(0xffff)) {
3303 return false;
3304 }
b0f7b9b5 3305 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
34118cae 3306 } else {
4a221615
GY		 3307 if (!is_mask) {
3308 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
3309 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
3310 /* See comments in odp_flow_key_from_flow__(). */
3311 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
3312 return false;
3313 }
34118cae 3314 }
b0f7b9b5
BP		 3315 return true;
3316}
3317
3318static enum odp_key_fitness
b02475c5
SH		 3319parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3320 uint64_t present_attrs, int out_of_range_attr,
3321 uint64_t expected_attrs, struct flow *flow,
4a221615 3322 const struct nlattr *key, size_t key_len,
91a77332 3323 const struct flow *src_flow)
b0f7b9b5
BP		 3324{
3325 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615
GY		 3326 bool is_mask = src_flow != flow;
3327 const void *check_start = NULL;
3328 size_t check_len = 0;
3329 enum ovs_key_attr expected_bit = 0xff;
3330
3331 if (eth_type_mpls(src_flow->dl_type)) {
7e6621e9 3332 if (!is_mask || present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
91a77332 3333 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
7e6621e9
JS		 3334 }
3335 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
3336 size_t size = nl_attr_get_size(attrs[OVS_KEY_ATTR_MPLS]);
3337 const ovs_be32 *mpls_lse = nl_attr_get(attrs[OVS_KEY_ATTR_MPLS]);
3338 int n = size / sizeof(ovs_be32);
3339 int i;
4a221615 3340
7e6621e9
JS		 3341 if (!size || size % sizeof(ovs_be32)) {
3342 return ODP_FIT_ERROR;
91a77332 3343 }
8bfd0fda 3344 if (flow->mpls_lse[0] && flow->dl_type != htons(0xffff)) {
4a221615
GY		 3345 return ODP_FIT_ERROR;
3346 }
8bfd0fda 3347
7e6621e9
JS		 3348 for (i = 0; i < n && i < FLOW_MAX_MPLS_LABELS; i++) {
3349 flow->mpls_lse[i] = mpls_lse[i];
3350 }
3351 if (n > FLOW_MAX_MPLS_LABELS) {
3352 return ODP_FIT_TOO_MUCH;
3353 }
8bfd0fda 3354
7e6621e9
JS		 3355 if (!is_mask) {
3356 /* BOS may be set only in the innermost label. */
3357 for (i = 0; i < n - 1; i++) {
3358 if (flow->mpls_lse[i] & htonl(MPLS_BOS_MASK)) {
3359 return ODP_FIT_ERROR;
3360 }
8bfd0fda 3361 }
8bfd0fda 3362
7e6621e9
JS		 3363 /* BOS must be set in the innermost label. */
3364 if (n < FLOW_MAX_MPLS_LABELS
3365 && !(flow->mpls_lse[n - 1] & htonl(MPLS_BOS_MASK))) {
3366 return ODP_FIT_TOO_LITTLE;
3367 }
8bfd0fda
BP		 3368 }
3369 }
3370
4a221615
GY		 3371 goto done;
3372 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
3373 if (!is_mask) {
3374 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
b02475c5 3375 }
fea393b1 3376 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
34118cae 3377 const struct ovs_key_ipv4 *ipv4_key;
36956a7d 3378
34118cae 3379 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
3cea18ec
JR		 3380 put_ipv4_key(ipv4_key, flow, is_mask);
3381 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
3382 return ODP_FIT_ERROR;
3383 }
4a221615 3384 if (is_mask) {
4a221615
GY		 3385 check_start = ipv4_key;
3386 check_len = sizeof *ipv4_key;
3387 expected_bit = OVS_KEY_ATTR_IPV4;
36956a7d 3388 }
34118cae 3389 }
4a221615
GY		 3390 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
3391 if (!is_mask) {
3392 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
3393 }
fea393b1 3394 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
34118cae 3395 const struct ovs_key_ipv6 *ipv6_key;
36956a7d 3396
34118cae 3397 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
3cea18ec
JR		 3398 put_ipv6_key(ipv6_key, flow, is_mask);
3399 if (flow->nw_frag > FLOW_NW_FRAG_MASK) {
3400 return ODP_FIT_ERROR;
3401 }
4a221615 3402 if (is_mask) {
4a221615
GY		 3403 check_start = ipv6_key;
3404 check_len = sizeof *ipv6_key;
3405 expected_bit = OVS_KEY_ATTR_IPV6;
d31f1109 3406 }
34118cae 3407 }
4a221615
GY		 3408 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
3409 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
3410 if (!is_mask) {
3411 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
3412 }
fea393b1 3413 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
34118cae 3414 const struct ovs_key_arp *arp_key;
d31f1109 3415
34118cae 3416 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
4a221615 3417 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
34118cae
BP		 3418 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
3419 "key", ntohs(arp_key->arp_op));
b0f7b9b5 3420 return ODP_FIT_ERROR;
36956a7d 3421 }
3cea18ec 3422 put_arp_key(arp_key, flow);
4a221615
GY		 3423 if (is_mask) {
3424 check_start = arp_key;
3425 check_len = sizeof *arp_key;
3426 expected_bit = OVS_KEY_ATTR_ARP;
3427 }
3428 }
3429 } else {
3430 goto done;
3431 }
df4eeb20 3432 if (check_len > 0) { /* Happens only when 'is_mask'. */
4a221615
GY		 3433 if (!is_all_zeros(check_start, check_len) &&
3434 flow->dl_type != htons(0xffff)) {
3435 return ODP_FIT_ERROR;
3436 } else {
3437 expected_attrs |= UINT64_C(1) << expected_bit;
36956a7d 3438 }
36956a7d 3439 }
36956a7d 3440
4a221615
GY		 3441 expected_bit = OVS_KEY_ATTR_UNSPEC;
3442 if (src_flow->nw_proto == IPPROTO_TCP
3443 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3444 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3445 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3446 if (!is_mask) {
3447 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
3448 }
fea393b1 3449 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
3cea18ec 3450 const union ovs_key_tp *tcp_key;
36956a7d 3451
34118cae 3452 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
3cea18ec 3453 put_tp_key(tcp_key, flow);
4a221615
GY		 3454 expected_bit = OVS_KEY_ATTR_TCP;
3455 }
dc235f7f
JR		 3456 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS)) {
3457 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS;
3458 flow->tcp_flags = nl_attr_get_be16(attrs[OVS_KEY_ATTR_TCP_FLAGS]);
3459 }
4a221615
GY		 3460 } else if (src_flow->nw_proto == IPPROTO_UDP
3461 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3462 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3463 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3464 if (!is_mask) {
3465 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
7257b535 3466 }
fea393b1 3467 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
3cea18ec 3468 const union ovs_key_tp *udp_key;
34118cae
BP		 3469
3470 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
3cea18ec 3471 put_tp_key(udp_key, flow);
4a221615
GY		 3472 expected_bit = OVS_KEY_ATTR_UDP;
3473 }
12848ebf
GS		 3474 } else if (src_flow->nw_proto == IPPROTO_SCTP
3475 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
3476 src_flow->dl_type == htons(ETH_TYPE_IPV6))
3477 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
c6bcb685
JS		 3478 if (!is_mask) {
3479 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
3480 }
3481 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
3cea18ec 3482 const union ovs_key_tp *sctp_key;
c6bcb685
JS		 3483
3484 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
3cea18ec 3485 put_tp_key(sctp_key, flow);
c6bcb685
JS		 3486 expected_bit = OVS_KEY_ATTR_SCTP;
3487 }
4a221615
GY		 3488 } else if (src_flow->nw_proto == IPPROTO_ICMP
3489 && src_flow->dl_type == htons(ETH_TYPE_IP)
3490 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3491 if (!is_mask) {
3492 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
d31f1109 3493 }
fea393b1 3494 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
34118cae
BP		 3495 const struct ovs_key_icmp *icmp_key;
3496
3497 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
3498 flow->tp_src = htons(icmp_key->icmp_type);
3499 flow->tp_dst = htons(icmp_key->icmp_code);
4a221615
GY		 3500 expected_bit = OVS_KEY_ATTR_ICMP;
3501 }
3502 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
3503 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
3504 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
3505 if (!is_mask) {
3506 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
685a51a5 3507 }
fea393b1 3508 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
34118cae
BP		 3509 const struct ovs_key_icmpv6 *icmpv6_key;
3510
3511 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3512 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3513 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
4a221615 3514 expected_bit = OVS_KEY_ATTR_ICMPV6;
6f8dbd27
GY		 3515 if (src_flow->tp_dst == htons(0) &&
3516 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3517 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
4a221615
GY		 3518 if (!is_mask) {
3519 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3520 }
fea393b1 3521 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
34118cae
BP		 3522 const struct ovs_key_nd *nd_key;
3523
3524 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3525 memcpy(&flow->nd_target, nd_key->nd_target,
3526 sizeof flow->nd_target);
3527 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3528 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
4a221615 3529 if (is_mask) {
53cb9c3e 3530 if (!is_all_zeros(nd_key, sizeof *nd_key) &&
6f8dbd27
GY		 3531 (flow->tp_src != htons(0xffff) ||
3532 flow->tp_dst != htons(0xffff))) {
4a221615
GY		 3533 return ODP_FIT_ERROR;
3534 } else {
3535 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3536 }
3537 }
34118cae
BP		 3538 }
3539 }
7257b535 3540 }
34118cae 3541 }
4a221615
GY		 3542 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3543 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3544 return ODP_FIT_ERROR;
3545 } else {
3546 expected_attrs |= UINT64_C(1) << expected_bit;
3547 }
3548 }
7257b535 3549
4a221615 3550done:
b0f7b9b5
BP		 3551 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3552 key, key_len);
3553}
3554
3555/* Parse 802.1Q header then encapsulated L3 attributes. */
3556static enum odp_key_fitness
3557parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3558 uint64_t present_attrs, int out_of_range_attr,
3559 uint64_t expected_attrs, struct flow *flow,
4a221615
GY		 3560 const struct nlattr *key, size_t key_len,
3561 const struct flow *src_flow)
b0f7b9b5
BP		 3562{
3563 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615 3564 bool is_mask = src_flow != flow;
b0f7b9b5
BP		 3565
3566 const struct nlattr *encap
3567 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3568 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3569 enum odp_key_fitness encap_fitness;
3570 enum odp_key_fitness fitness;
b0f7b9b5 3571
ec9f40dc 3572 /* Calculate fitness of outer attributes. */
4a221615
GY		 3573 if (!is_mask) {
3574 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3575 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3576 } else {
3577 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3578 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3579 }
3580 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3581 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3582 }
3583 }
b0f7b9b5
BP		 3584 fitness = check_expectations(present_attrs, out_of_range_attr,
3585 expected_attrs, key, key_len);
3586
3e634810
BP		 3587 /* Set vlan_tci.
3588 * Remove the TPID from dl_type since it's not the real Ethertype. */
3589 flow->dl_type = htons(0);
3590 flow->vlan_tci = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)
3591 ? nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN])
3592 : htons(0));
3593 if (!is_mask) {
3594 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
3595 return ODP_FIT_TOO_LITTLE;
3596 } else if (flow->vlan_tci == htons(0)) {
3597 /* Corner case for a truncated 802.1Q header. */
3598 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3599 return ODP_FIT_TOO_MUCH;
3600 }
3601 return fitness;
3602 } else if (!(flow->vlan_tci & htons(VLAN_CFI))) {
3603 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3604 "but CFI bit is not set", ntohs(flow->vlan_tci));
3605 return ODP_FIT_ERROR;
3606 }
4a221615 3607 } else {
3e634810
BP		 3608 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
3609 return fitness;
4a221615 3610 }
4a221615
GY		 3611 }
3612
b0f7b9b5
BP		 3613 /* Now parse the encapsulated attributes. */
3614 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3615 attrs, &present_attrs, &out_of_range_attr)) {
3616 return ODP_FIT_ERROR;
3617 }
3618 expected_attrs = 0;
3619
4a221615 3620 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
b0f7b9b5
BP		 3621 return ODP_FIT_ERROR;
3622 }
b02475c5 3623 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3624 expected_attrs, flow, key, key_len,
3625 src_flow);
b0f7b9b5
BP		 3626
3627 /* The overall fitness is the worse of the outer and inner attributes. */
3628 return MAX(fitness, encap_fitness);
3629}
3630
4a221615
GY		 3631static enum odp_key_fitness
3632odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3633 struct flow *flow, const struct flow *src_flow)
b0f7b9b5 3634{
b0f7b9b5
BP		 3635 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3636 uint64_t expected_attrs;
3637 uint64_t present_attrs;
3638 int out_of_range_attr;
4a221615 3639 bool is_mask = src_flow != flow;
b0f7b9b5
BP		 3640
3641 memset(flow, 0, sizeof *flow);
3642
3643 /* Parse attributes. */
3644 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3645 &out_of_range_attr)) {
3646 return ODP_FIT_ERROR;
3647 }
3648 expected_attrs = 0;
3649
3650 /* Metadata. */
572f732a
AZ		 3651 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID)) {
3652 flow->recirc_id = nl_attr_get_u32(attrs[OVS_KEY_ATTR_RECIRC_ID]);
3653 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID;
3654 } else if (is_mask) {
8c1b077f 3655 /* Always exact match recirc_id if it is not specified. */
572f732a
AZ		 3656 flow->recirc_id = UINT32_MAX;
3657 }
3658
3659 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH)) {
3660 flow->dp_hash = nl_attr_get_u32(attrs[OVS_KEY_ATTR_DP_HASH]);
3661 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH;
3662 }
b0f7b9b5 3663 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
deedf7e7 3664 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
b0f7b9b5
BP		 3665 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3666 }
3667
72e8bf28 3668 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
1362e248 3669 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
72e8bf28
AA		 3670 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3671 }
3672
9b405f1a
PS		 3673 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3674 enum odp_key_fitness res;
05fb0928 3675
617e10e7 3676 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
9b405f1a
PS		 3677 if (res == ODP_FIT_ERROR) {
3678 return ODP_FIT_ERROR;
3679 } else if (res == ODP_FIT_PERFECT) {
3680 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
05fb0928
JR		 3681 }
3682 }
3683
b0f7b9b5 3684 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
4e022ec0
AW		 3685 flow->in_port.odp_port
3686 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
b0f7b9b5 3687 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
4a221615 3688 } else if (!is_mask) {
4e022ec0 3689 flow->in_port.odp_port = ODPP_NONE;
b0f7b9b5
BP		 3690 }
3691
3692 /* Ethernet header. */
3693 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3694 const struct ovs_key_ethernet *eth_key;
3695
3696 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3cea18ec 3697 put_ethernet_key(eth_key, flow);
4a221615
GY		 3698 if (is_mask) {
3699 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3700 }
3701 }
3702 if (!is_mask) {
3703 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
b0f7b9b5 3704 }
b0f7b9b5
BP		 3705
3706 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
4a221615
GY		 3707 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3708 src_flow)) {
b0f7b9b5
BP		 3709 return ODP_FIT_ERROR;
3710 }
3711
21e70add
BP		 3712 if (is_mask
3713 ? (src_flow->vlan_tci & htons(VLAN_CFI)) != 0
3714 : src_flow->dl_type == htons(ETH_TYPE_VLAN)) {
b0f7b9b5 3715 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3716 expected_attrs, flow, key, key_len, src_flow);
3717 }
3718 if (is_mask) {
3719 flow->vlan_tci = htons(0xffff);
3720 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3721 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3722 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3723 }
b0f7b9b5 3724 }
b02475c5 3725 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3726 expected_attrs, flow, key, key_len, src_flow);
3727}
3728
3729/* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3730 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3731 * 'key' fits our expectations for what a flow key should contain.
3732 *
3733 * The 'in_port' will be the datapath's understanding of the port. The
3734 * caller will need to translate with odp_port_to_ofp_port() if the
3735 * OpenFlow port is needed.
3736 *
3737 * This function doesn't take the packet itself as an argument because none of
3738 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3739 * it is always possible to infer which additional attribute(s) should appear
3740 * by looking at the attributes for lower-level protocols, e.g. if the network
3741 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3742 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3743 * must be absent. */
3744enum odp_key_fitness
3745odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3746 struct flow *flow)
3747{
3748 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3749}
3750
3751/* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3752 * structure in 'mask'. 'flow' must be a previously translated flow
3753 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3754 * 'key' fits our expectations for what a flow key should contain. */
3755enum odp_key_fitness
3756odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3757 struct flow *mask, const struct flow *flow)
3758{
3759 return odp_flow_key_to_flow__(key, key_len, mask, flow);
14608a15 3760}
39db78a0 3761
6814e51f
BP		 3762/* Returns 'fitness' as a string, for use in debug messages. */
3763const char *
3764odp_key_fitness_to_string(enum odp_key_fitness fitness)
3765{
3766 switch (fitness) {
3767 case ODP_FIT_PERFECT:
3768 return "OK";
3769 case ODP_FIT_TOO_MUCH:
3770 return "too_much";
3771 case ODP_FIT_TOO_LITTLE:
3772 return "too_little";
3773 case ODP_FIT_ERROR:
3774 return "error";
3775 default:
3776 return "<unknown>";
3777 }
3778}
3779
39db78a0 3780/* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
e995e3df
BP		 3781 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3782 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3783 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3784 * null, then the return value is not meaningful.) */
39db78a0 3785size_t
e995e3df
BP		 3786odp_put_userspace_action(uint32_t pid,
3787 const void *userdata, size_t userdata_size,
8b7ea2d4 3788 odp_port_t tunnel_out_port,
39db78a0
BP		 3789 struct ofpbuf *odp_actions)
3790{
e995e3df 3791 size_t userdata_ofs;
39db78a0
BP		 3792 size_t offset;
3793
3794 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3795 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
e995e3df 3796 if (userdata) {
1f317cb5 3797 userdata_ofs = ofpbuf_size(odp_actions) + NLA_HDRLEN;
96ed775f
BP		 3798
3799 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
3800 * module before Linux 3.10 required the userdata to be exactly 8 bytes
3801 * long:
3802 *
3803 * - The kernel rejected shorter userdata with -ERANGE.
3804 *
3805 * - The kernel silently dropped userdata beyond the first 8 bytes.
3806 *
3807 * Thus, for maximum compatibility, always put at least 8 bytes. (We
3808 * separately disable features that required more than 8 bytes.) */
3809 memcpy(nl_msg_put_unspec_zero(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
3810 MAX(8, userdata_size)),
3811 userdata, userdata_size);
e995e3df
BP		 3812 } else {
3813 userdata_ofs = 0;
39db78a0 3814 }
8b7ea2d4
WZ		 3815 if (tunnel_out_port != ODPP_NONE) {
3816 nl_msg_put_odp_port(odp_actions, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT,
3817 tunnel_out_port);
3818 }
39db78a0
BP		 3819 nl_msg_end_nested(odp_actions, offset);
3820
e995e3df 3821 return userdata_ofs;
39db78a0 3822}
b9ad7294
EJ		 3823
3824void
3825odp_put_tunnel_action(const struct flow_tnl *tunnel,
3826 struct ofpbuf *odp_actions)
3827{
3828 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3829 tun_key_to_attr(odp_actions, tunnel);
3830 nl_msg_end_nested(odp_actions, offset);
3831}
a36de779
PS		 3832
3833void
3834odp_put_tnl_push_action(struct ofpbuf *odp_actions,
3835 struct ovs_action_push_tnl *data)
3836{
3837 int size = offsetof(struct ovs_action_push_tnl, header);
3838
3839 size += data->header_len;
3840 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_TUNNEL_PUSH, data, size);
3841}
3842
5bbda0aa
EJ		 3843\f
3844/* The commit_odp_actions() function and its helpers. */
3845
3846static void
3847commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3848 const void *key, size_t key_size)
3849{
3850 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3851 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3852 nl_msg_end_nested(odp_actions, offset);
3853}
3854
6d670e7f
JR		 3855/* Masked set actions have a mask following the data within the netlink
3856 * attribute. The unmasked bits in the data will be cleared as the data
3857 * is copied to the action. */
3858void
3859commit_masked_set_action(struct ofpbuf *odp_actions,
3860 enum ovs_key_attr key_type,
3861 const void *key_, const void *mask_, size_t key_size)
3862{
3863 size_t offset = nl_msg_start_nested(odp_actions,
3864 OVS_ACTION_ATTR_SET_MASKED);
3865 char *data = nl_msg_put_unspec_uninit(odp_actions, key_type, key_size * 2);
3866 const char *key = key_, *mask = mask_;
3867
3868 memcpy(data + key_size, mask, key_size);
3869 /* Clear unmasked bits while copying. */
3870 while (key_size--) {
3871 *data++ = *key++ & *mask++;
3872 }
3873 nl_msg_end_nested(odp_actions, offset);
3874}
3875
b9ad7294
EJ		 3876/* If any of the flow key data that ODP actions can modify are different in
3877 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3878 * 'odp_actions' that change the flow tunneling information in key from
3879 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3880 * same way. In other words, operates the same as commit_odp_actions(), but
3881 * only on tunneling information. */
3882void
3883commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
5bbda0aa
EJ		 3884 struct ofpbuf *odp_actions)
3885{
05fb0928
JR		 3886 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3887 if (flow->tunnel.ip_dst) {
fc80de30
JR		 3888 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3889 return;
3890 }
3891 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
b9ad7294 3892 odp_put_tunnel_action(&base->tunnel, odp_actions);
05fb0928 3893 }
5bbda0aa
EJ		 3894}
3895
d23df9a8
JR		 3896static bool
3897commit(enum ovs_key_attr attr, bool use_masked_set,
3898 const void *key, void *base, void *mask, size_t size,
3899 struct ofpbuf *odp_actions)
5bbda0aa 3900{
d23df9a8
JR		 3901 if (memcmp(key, base, size)) {
3902 bool fully_masked = odp_mask_is_exact(attr, mask, size);
5bbda0aa 3903
d23df9a8
JR		 3904 if (use_masked_set && !fully_masked) {
3905 commit_masked_set_action(odp_actions, attr, key, mask, size);
3906 } else {
3907 if (!fully_masked) {
3908 memset(mask, 0xff, size);
3909 }
3910 commit_set_action(odp_actions, attr, key, size);
3911 }
3912 memcpy(base, key, size);
3913 return true;
3914 } else {
3915 /* Mask bits are set when we have either read or set the corresponding
3916 * values. Masked bits will be exact-matched, no need to set them
3917 * if the value did not actually change. */
3918 return false;
5bbda0aa 3919 }
d23df9a8 3920}
5bbda0aa 3921
d23df9a8
JR		 3922static void
3923get_ethernet_key(const struct flow *flow, struct ovs_key_ethernet *eth)
3924{
3925 memcpy(eth->eth_src, flow->dl_src, ETH_ADDR_LEN);
3926 memcpy(eth->eth_dst, flow->dl_dst, ETH_ADDR_LEN);
3927}
1dd35f8a 3928
d23df9a8
JR		 3929static void
3930put_ethernet_key(const struct ovs_key_ethernet *eth, struct flow *flow)
3931{
3932 memcpy(flow->dl_src, eth->eth_src, ETH_ADDR_LEN);
3933 memcpy(flow->dl_dst, eth->eth_dst, ETH_ADDR_LEN);
3934}
5bbda0aa 3935
d23df9a8
JR		 3936static void
3937commit_set_ether_addr_action(const struct flow *flow, struct flow *base_flow,
3938 struct ofpbuf *odp_actions,
3939 struct flow_wildcards *wc,
3940 bool use_masked)
3941{
3942 struct ovs_key_ethernet key, base, mask;
5bbda0aa 3943
d23df9a8
JR		 3944 get_ethernet_key(flow, &key);
3945 get_ethernet_key(base_flow, &base);
3946 get_ethernet_key(&wc->masks, &mask);
3947
3948 if (commit(OVS_KEY_ATTR_ETHERNET, use_masked,
3949 &key, &base, &mask, sizeof key, odp_actions)) {
3950 put_ethernet_key(&base, base_flow);
3951 put_ethernet_key(&mask, &wc->masks);
3952 }
5bbda0aa
EJ		 3953}
3954
3955static void
8bfd0fda
BP		 3956pop_vlan(struct flow *base,
3957 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5bbda0aa 3958{
1dd35f8a
JP		 3959 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3960
5bbda0aa
EJ		 3961 if (base->vlan_tci & htons(VLAN_CFI)) {
3962 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
8bfd0fda
BP		 3963 base->vlan_tci = 0;
3964 }
3965}
3966
3967static void
3968commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
3969 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
3970{
3971 if (base->vlan_tci == vlan_tci) {
3972 return;
5bbda0aa
EJ		 3973 }
3974
8bfd0fda 3975 pop_vlan(base, odp_actions, wc);
8fd16af2 3976 if (vlan_tci & htons(VLAN_CFI)) {
5bbda0aa
EJ		 3977 struct ovs_action_push_vlan vlan;
3978
3979 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
8fd16af2 3980 vlan.vlan_tci = vlan_tci;
5bbda0aa
EJ		 3981 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3982 &vlan, sizeof vlan);
3983 }
8fd16af2 3984 base->vlan_tci = vlan_tci;
5bbda0aa
EJ		 3985}
3986
22d38fca 3987/* Wildcarding already done at action translation time. */
b02475c5
SH		 3988static void
3989commit_mpls_action(const struct flow *flow, struct flow *base,
22d38fca 3990 struct ofpbuf *odp_actions)
b02475c5 3991{
22d38fca
JR		 3992 int base_n = flow_count_mpls_labels(base, NULL);
3993 int flow_n = flow_count_mpls_labels(flow, NULL);
8bfd0fda 3994 int common_n = flow_count_common_mpls_labels(flow, flow_n, base, base_n,
22d38fca 3995 NULL);
8bfd0fda
BP		 3996
3997 while (base_n > common_n) {
3998 if (base_n - 1 == common_n && flow_n > common_n) {
3999 /* If there is only one more LSE in base than there are common
4000 * between base and flow; and flow has at least one more LSE than
4001 * is common then the topmost LSE of base may be updated using
4002 * set */
4003 struct ovs_key_mpls mpls_key;
4004
4005 mpls_key.mpls_lse = flow->mpls_lse[flow_n - base_n];
4006 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
4007 &mpls_key, sizeof mpls_key);
4008 flow_set_mpls_lse(base, 0, mpls_key.mpls_lse);
4009 common_n++;
4010 } else {
4011 /* Otherwise, if there more LSEs in base than are common between
4012 * base and flow then pop the topmost one. */
4013 ovs_be16 dl_type;
4014 bool popped;
4015
4016 /* If all the LSEs are to be popped and this is not the outermost
4017 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
4018 * POP_MPLS action instead of flow->dl_type.
4019 *
4020 * This is because the POP_MPLS action requires its ethertype
4021 * argument to be an MPLS ethernet type but in this case
4022 * flow->dl_type will be a non-MPLS ethernet type.
4023 *
4024 * When the final POP_MPLS action occurs it use flow->dl_type and
4025 * the and the resulting packet will have the desired dl_type. */
4026 if ((!eth_type_mpls(flow->dl_type)) && base_n > 1) {
4027 dl_type = htons(ETH_TYPE_MPLS);
4028 } else {
4029 dl_type = flow->dl_type;
4030 }
4031 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, dl_type);
22d38fca 4032 popped = flow_pop_mpls(base, base_n, flow->dl_type, NULL);
8bfd0fda
BP		 4033 ovs_assert(popped);
4034 base_n--;
4035 }
b02475c5
SH		 4036 }
4037
8bfd0fda
BP		 4038 /* If, after the above popping and setting, there are more LSEs in flow
4039 * than base then some LSEs need to be pushed. */
4040 while (base_n < flow_n) {
b02475c5
SH		 4041 struct ovs_action_push_mpls *mpls;
4042
8bfd0fda
BP		 4043 mpls = nl_msg_put_unspec_zero(odp_actions,
4044 OVS_ACTION_ATTR_PUSH_MPLS,
9ddf12cc 4045 sizeof *mpls);
b02475c5 4046 mpls->mpls_ethertype = flow->dl_type;
8bfd0fda 4047 mpls->mpls_lse = flow->mpls_lse[flow_n - base_n - 1];
22d38fca 4048 flow_push_mpls(base, base_n, mpls->mpls_ethertype, NULL);
8bfd0fda
BP		 4049 flow_set_mpls_lse(base, 0, mpls->mpls_lse);
4050 base_n++;
b0a17866 4051 }
b02475c5
SH		 4052}
4053
5bbda0aa 4054static void
3cea18ec 4055get_ipv4_key(const struct flow *flow, struct ovs_key_ipv4 *ipv4, bool is_mask)
5bbda0aa 4056{
d23df9a8
JR		 4057 ipv4->ipv4_src = flow->nw_src;
4058 ipv4->ipv4_dst = flow->nw_dst;
4059 ipv4->ipv4_proto = flow->nw_proto;
4060 ipv4->ipv4_tos = flow->nw_tos;
4061 ipv4->ipv4_ttl = flow->nw_ttl;
3cea18ec 4062 ipv4->ipv4_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
d23df9a8 4063}
5bbda0aa 4064
d23df9a8 4065static void
3cea18ec 4066put_ipv4_key(const struct ovs_key_ipv4 *ipv4, struct flow *flow, bool is_mask)
d23df9a8
JR		 4067{
4068 flow->nw_src = ipv4->ipv4_src;
4069 flow->nw_dst = ipv4->ipv4_dst;
4070 flow->nw_proto = ipv4->ipv4_proto;
4071 flow->nw_tos = ipv4->ipv4_tos;
4072 flow->nw_ttl = ipv4->ipv4_ttl;
3cea18ec 4073 flow->nw_frag = odp_to_ovs_frag(ipv4->ipv4_frag, is_mask);
d23df9a8
JR		 4074}
4075
4076static void
4077commit_set_ipv4_action(const struct flow *flow, struct flow *base_flow,
4078 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
4079 bool use_masked)
4080{
4081 struct ovs_key_ipv4 key, mask, base;
5bbda0aa 4082
d23df9a8
JR		 4083 /* Check that nw_proto and nw_frag remain unchanged. */
4084 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
4085 flow->nw_frag == base_flow->nw_frag);
1dd35f8a 4086
3cea18ec
JR		 4087 get_ipv4_key(flow, &key, false);
4088 get_ipv4_key(base_flow, &base, false);
4089 get_ipv4_key(&wc->masks, &mask, true);
d23df9a8
JR		 4090 mask.ipv4_proto = 0; /* Not writeable. */
4091 mask.ipv4_frag = 0; /* Not writable. */
5bbda0aa 4092
d23df9a8
JR		 4093 if (commit(OVS_KEY_ATTR_IPV4, use_masked, &key, &base, &mask, sizeof key,
4094 odp_actions)) {
3cea18ec 4095 put_ipv4_key(&base, base_flow, false);
d23df9a8 4096 if (mask.ipv4_proto != 0) { /* Mask was changed by commit(). */
3cea18ec 4097 put_ipv4_key(&mask, &wc->masks, true);
d23df9a8
JR		 4098 }
4099 }
5bbda0aa
EJ		 4100}
4101
c4f2731d 4102static void
3cea18ec 4103get_ipv6_key(const struct flow *flow, struct ovs_key_ipv6 *ipv6, bool is_mask)
c4f2731d 4104{
d23df9a8
JR		 4105 memcpy(ipv6->ipv6_src, &flow->ipv6_src, sizeof ipv6->ipv6_src);
4106 memcpy(ipv6->ipv6_dst, &flow->ipv6_dst, sizeof ipv6->ipv6_dst);
4107 ipv6->ipv6_label = flow->ipv6_label;
4108 ipv6->ipv6_proto = flow->nw_proto;
4109 ipv6->ipv6_tclass = flow->nw_tos;
4110 ipv6->ipv6_hlimit = flow->nw_ttl;
3cea18ec 4111 ipv6->ipv6_frag = ovs_to_odp_frag(flow->nw_frag, is_mask);
d23df9a8 4112}
c4f2731d 4113
d23df9a8 4114static void
3cea18ec 4115put_ipv6_key(const struct ovs_key_ipv6 *ipv6, struct flow *flow, bool is_mask)
d23df9a8
JR		 4116{
4117 memcpy(&flow->ipv6_src, ipv6->ipv6_src, sizeof flow->ipv6_src);
4118 memcpy(&flow->ipv6_dst, ipv6->ipv6_dst, sizeof flow->ipv6_dst);
4119 flow->ipv6_label = ipv6->ipv6_label;
4120 flow->nw_proto = ipv6->ipv6_proto;
4121 flow->nw_tos = ipv6->ipv6_tclass;
4122 flow->nw_ttl = ipv6->ipv6_hlimit;
3cea18ec 4123 flow->nw_frag = odp_to_ovs_frag(ipv6->ipv6_frag, is_mask);
d23df9a8 4124}
c4f2731d 4125
d23df9a8
JR		 4126static void
4127commit_set_ipv6_action(const struct flow *flow, struct flow *base_flow,
4128 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
4129 bool use_masked)
4130{
4131 struct ovs_key_ipv6 key, mask, base;
1dd35f8a 4132
d23df9a8
JR		 4133 /* Check that nw_proto and nw_frag remain unchanged. */
4134 ovs_assert(flow->nw_proto == base_flow->nw_proto &&
4135 flow->nw_frag == base_flow->nw_frag);
c4f2731d 4136
3cea18ec
JR		 4137 get_ipv6_key(flow, &key, false);
4138 get_ipv6_key(base_flow, &base, false);
4139 get_ipv6_key(&wc->masks, &mask, true);
d23df9a8
JR		 4140 mask.ipv6_proto = 0; /* Not writeable. */
4141 mask.ipv6_frag = 0; /* Not writable. */
c4f2731d 4142
d23df9a8
JR		 4143 if (commit(OVS_KEY_ATTR_IPV6, use_masked, &key, &base, &mask, sizeof key,
4144 odp_actions)) {
3cea18ec 4145 put_ipv6_key(&base, base_flow, false);
d23df9a8 4146 if (mask.ipv6_proto != 0) { /* Mask was changed by commit(). */
3cea18ec 4147 put_ipv6_key(&mask, &wc->masks, true);
d23df9a8
JR		 4148 }
4149 }
c4f2731d
PS		 4150}
4151
d23df9a8
JR		 4152static void
4153get_arp_key(const struct flow *flow, struct ovs_key_arp *arp)
f6c8a6b1 4154{
d23df9a8
JR		 4155 /* ARP key has padding, clear it. */
4156 memset(arp, 0, sizeof *arp);
f6c8a6b1 4157
d23df9a8
JR		 4158 arp->arp_sip = flow->nw_src;
4159 arp->arp_tip = flow->nw_dst;
4160 arp->arp_op = htons(flow->nw_proto);
4161 memcpy(arp->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
4162 memcpy(arp->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
4163}
f6c8a6b1 4164
d23df9a8
JR		 4165static void
4166put_arp_key(const struct ovs_key_arp *arp, struct flow *flow)
4167{
4168 flow->nw_src = arp->arp_sip;
4169 flow->nw_dst = arp->arp_tip;
4170 flow->nw_proto = ntohs(arp->arp_op);
4171 memcpy(flow->arp_sha, arp->arp_sha, ETH_ADDR_LEN);
4172 memcpy(flow->arp_tha, arp->arp_tha, ETH_ADDR_LEN);
4173}
f6c8a6b1 4174
d23df9a8
JR		 4175static enum slow_path_reason
4176commit_set_arp_action(const struct flow *flow, struct flow *base_flow,
4177 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
4178{
4179 struct ovs_key_arp key, mask, base;
f6c8a6b1 4180
d23df9a8
JR		 4181 get_arp_key(flow, &key);
4182 get_arp_key(base_flow, &base);
4183 get_arp_key(&wc->masks, &mask);
f6c8a6b1 4184
d23df9a8
JR		 4185 if (commit(OVS_KEY_ATTR_ARP, true, &key, &base, &mask, sizeof key,
4186 odp_actions)) {
4187 put_arp_key(&base, base_flow);
4188 put_arp_key(&mask, &wc->masks);
4189 return SLOW_ACTION;
4190 }
4191 return 0;
f6c8a6b1
BP		 4192}
4193
4194static enum slow_path_reason
c4f2731d 4195commit_set_nw_action(const struct flow *flow, struct flow *base,
d23df9a8
JR		 4196 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
4197 bool use_masked)
c4f2731d 4198{
f6c8a6b1 4199 /* Check if 'flow' really has an L3 header. */
c4f2731d 4200 if (!flow->nw_proto) {
f6c8a6b1 4201 return 0;
c4f2731d
PS		 4202 }
4203
f6c8a6b1
BP		 4204 switch (ntohs(base->dl_type)) {
4205 case ETH_TYPE_IP:
d23df9a8 4206 commit_set_ipv4_action(flow, base, odp_actions, wc, use_masked);
f6c8a6b1
BP		 4207 break;
4208
4209 case ETH_TYPE_IPV6:
d23df9a8 4210 commit_set_ipv6_action(flow, base, odp_actions, wc, use_masked);
f6c8a6b1
BP		 4211 break;
4212
4213 case ETH_TYPE_ARP:
4214 return commit_set_arp_action(flow, base, odp_actions, wc);
c4f2731d 4215 }
f6c8a6b1
BP		 4216
4217 return 0;
c4f2731d
PS		 4218}
4219
d23df9a8
JR		 4220/* TCP, UDP, and SCTP keys have the same layout. */
4221BUILD_ASSERT_DECL(sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_udp) &&
4222 sizeof(struct ovs_key_tcp) == sizeof(struct ovs_key_sctp));
4223
5bbda0aa 4224static void
3cea18ec 4225get_tp_key(const struct flow *flow, union ovs_key_tp *tp)
5bbda0aa 4226{
3cea18ec
JR		 4227 tp->tcp.tcp_src = flow->tp_src;
4228 tp->tcp.tcp_dst = flow->tp_dst;
d23df9a8
JR		 4229}
4230
4231static void
3cea18ec 4232put_tp_key(const union ovs_key_tp *tp, struct flow *flow)
d23df9a8 4233{
3cea18ec
JR		 4234 flow->tp_src = tp->tcp.tcp_src;
4235 flow->tp_dst = tp->tcp.tcp_dst;
d23df9a8
JR		 4236}
4237
4238static void
4239commit_set_port_action(const struct flow *flow, struct flow *base_flow,
4240 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
4241 bool use_masked)
4242{
4243 enum ovs_key_attr key_type;
3cea18ec 4244 union ovs_key_tp key, mask, base;
d23df9a8 4245
791a09be
SH		 4246 /* Check if 'flow' really has an L3 header. */
4247 if (!flow->nw_proto) {
4248 return;
4249 }
4250
d23df9a8 4251 if (!is_ip_any(base_flow)) {
5bbda0aa
EJ		 4252 return;
4253 }
4254
5bbda0aa 4255 if (flow->nw_proto == IPPROTO_TCP) {
d23df9a8 4256 key_type = OVS_KEY_ATTR_TCP;
5bbda0aa 4257 } else if (flow->nw_proto == IPPROTO_UDP) {
d23df9a8 4258 key_type = OVS_KEY_ATTR_UDP;
c6bcb685 4259 } else if (flow->nw_proto == IPPROTO_SCTP) {
d23df9a8
JR		 4260 key_type = OVS_KEY_ATTR_SCTP;
4261 } else {
4262 return;
4263 }
c6bcb685 4264
d23df9a8
JR		 4265 get_tp_key(flow, &key);
4266 get_tp_key(base_flow, &base);
4267 get_tp_key(&wc->masks, &mask);
c6bcb685 4268
d23df9a8
JR		 4269 if (commit(key_type, use_masked, &key, &base, &mask, sizeof key,
4270 odp_actions)) {
4271 put_tp_key(&base, base_flow);
4272 put_tp_key(&mask, &wc->masks);
5bbda0aa
EJ		 4273 }
4274}
4275
4276static void
d23df9a8 4277commit_set_priority_action(const struct flow *flow, struct flow *base_flow,
1dd35f8a 4278 struct ofpbuf *odp_actions,
d23df9a8
JR		 4279 struct flow_wildcards *wc,
4280 bool use_masked)
5bbda0aa 4281{
d23df9a8 4282 uint32_t key, mask, base;
1dd35f8a 4283
d23df9a8
JR		 4284 key = flow->skb_priority;
4285 base = base_flow->skb_priority;
4286 mask = wc->masks.skb_priority;
5bbda0aa 4287
d23df9a8
JR		 4288 if (commit(OVS_KEY_ATTR_PRIORITY, use_masked, &key, &base, &mask,
4289 sizeof key, odp_actions)) {
4290 base_flow->skb_priority = base;
4291 wc->masks.skb_priority = mask;
4292 }
5bbda0aa
EJ		 4293}
4294
72e8bf28 4295static void
d23df9a8 4296commit_set_pkt_mark_action(const struct flow *flow, struct flow *base_flow,
1dd35f8a 4297 struct ofpbuf *odp_actions,
d23df9a8
JR		 4298 struct flow_wildcards *wc,
4299 bool use_masked)
72e8bf28 4300{
d23df9a8 4301 uint32_t key, mask, base;
1dd35f8a 4302
d23df9a8
JR		 4303 key = flow->pkt_mark;
4304 base = base_flow->pkt_mark;
4305 mask = wc->masks.pkt_mark;
72e8bf28 4306
d23df9a8
JR		 4307 if (commit(OVS_KEY_ATTR_SKB_MARK, use_masked, &key, &base, &mask,
4308 sizeof key, odp_actions)) {
4309 base_flow->pkt_mark = base;
4310 wc->masks.pkt_mark = mask;
4311 }
72e8bf28 4312}
7fd91025 4313
5bbda0aa
EJ		 4314/* If any of the flow key data that ODP actions can modify are different in
4315 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
b9ad7294
EJ		 4316 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
4317 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
1dd35f8a 4318 * in addition to this function if needed. Sets fields in 'wc' that are
7fd91025
BP		 4319 * used as part of the action.
4320 *
4321 * Returns a reason to force processing the flow's packets into the userspace
4322 * slow path, if there is one, otherwise 0. */
4323enum slow_path_reason
5bbda0aa 4324commit_odp_actions(const struct flow *flow, struct flow *base,
d23df9a8
JR		 4325 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
4326 bool use_masked)
5bbda0aa 4327{
f6c8a6b1
BP		 4328 enum slow_path_reason slow;
4329
d23df9a8
JR		 4330 commit_set_ether_addr_action(flow, base, odp_actions, wc, use_masked);
4331 slow = commit_set_nw_action(flow, base, odp_actions, wc, use_masked);
4332 commit_set_port_action(flow, base, odp_actions, wc, use_masked);
22d38fca 4333 commit_mpls_action(flow, base, odp_actions);
8bfd0fda 4334 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
d23df9a8
JR		 4335 commit_set_priority_action(flow, base, odp_actions, wc, use_masked);
4336 commit_set_pkt_mark_action(flow, base, odp_actions, wc, use_masked);
7fd91025 4337
f6c8a6b1 4338 return slow;
5bbda0aa 4339}
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