]> git.proxmox.com Git - ovs.git/blame - lib/odp-util.c
projects / ovs.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
dpif: Support working around actions that a datapath does not support.
[ovs.git] / lib / odp-util.c
CommitLineData
064af421 1/*
48cecbdc 2 * Copyright (c) 2009, 2010, 2011, 2012, 2013 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>
cdee00fd 27#include "byte-order.h"
064af421
BP		 28#include "coverage.h"
29#include "dynamic-string.h"
30#include "flow.h"
cdee00fd 31#include "netlink.h"
3bffc610 32#include "ofpbuf.h"
064af421 33#include "packets.h"
44bac24b 34#include "simap.h"
064af421
BP		 35#include "timeval.h"
36#include "util.h"
34118cae
BP		 37#include "vlog.h"
38
39VLOG_DEFINE_THIS_MODULE(odp_util);
064af421 40
df2c07f4
JP		 41/* The interface between userspace and kernel uses an "OVS_*" prefix.
42 * Since this is fairly non-specific for the OVS userspace components,
43 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
44 * interactions with the datapath.
45 */
46
7202cbe5
BP		 47/* The set of characters that may separate one action or one key attribute
48 * from another. */
49static const char *delimiters = ", \t\r\n";
50
e6cc0bab
AZ		 51static int parse_odp_key_mask_attr(const char *, const struct simap *port_names,
52 struct ofpbuf *, struct ofpbuf *);
53static void format_odp_key_attr(const struct nlattr *a,
0a37839c
GS		 54 const struct nlattr *ma,
55 const struct hmap *portno_names, struct ds *ds,
041e7168 56 bool verbose);
a052b51b 57
98403001
BP		 58/* Returns one the following for the action with the given OVS_ACTION_ATTR_*
59 * 'type':
60 *
61 * - For an action whose argument has a fixed length, returned that
62 * nonnegative length in bytes.
63 *
64 * - For an action with a variable-length argument, returns -2.
65 *
66 * - For an invalid 'type', returns -1. */
4edb9ae9 67static int
cdee00fd
BP		 68odp_action_len(uint16_t type)
69{
df2c07f4 70 if (type > OVS_ACTION_ATTR_MAX) {
cdee00fd
BP		 71 return -1;
72 }
73
09ded0ad 74 switch ((enum ovs_action_attr) type) {
fea393b1 75 case OVS_ACTION_ATTR_OUTPUT: return sizeof(uint32_t);
98403001 76 case OVS_ACTION_ATTR_USERSPACE: return -2;
fea393b1
BP		 77 case OVS_ACTION_ATTR_PUSH_VLAN: return sizeof(struct ovs_action_push_vlan);
78 case OVS_ACTION_ATTR_POP_VLAN: return 0;
b02475c5
SH		 79 case OVS_ACTION_ATTR_PUSH_MPLS: return sizeof(struct ovs_action_push_mpls);
80 case OVS_ACTION_ATTR_POP_MPLS: return sizeof(ovs_be16);
4edb9ae9 81 case OVS_ACTION_ATTR_SET: return -2;
98403001 82 case OVS_ACTION_ATTR_SAMPLE: return -2;
df2c07f4
JP		 83
84 case OVS_ACTION_ATTR_UNSPEC:
85 case __OVS_ACTION_ATTR_MAX:
cdee00fd
BP		 86 return -1;
87 }
88
89 return -1;
90}
91
e6603631
BP		 92/* Returns a string form of 'attr'. The return value is either a statically
93 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
94 * should be at least OVS_KEY_ATTR_BUFSIZE. */
95enum { OVS_KEY_ATTR_BUFSIZE = 3 + INT_STRLEN(unsigned int) + 1 };
744791b5 96static const char *
e6603631 97ovs_key_attr_to_string(enum ovs_key_attr attr, char *namebuf, size_t bufsize)
744791b5 98{
744791b5
BP		 99 switch (attr) {
100 case OVS_KEY_ATTR_UNSPEC: return "unspec";
fea393b1 101 case OVS_KEY_ATTR_ENCAP: return "encap";
1b567fb9 102 case OVS_KEY_ATTR_PRIORITY: return "skb_priority";
72e8bf28 103 case OVS_KEY_ATTR_SKB_MARK: return "skb_mark";
9b405f1a 104 case OVS_KEY_ATTR_TUNNEL: return "tunnel";
744791b5
BP		 105 case OVS_KEY_ATTR_IN_PORT: return "in_port";
106 case OVS_KEY_ATTR_ETHERNET: return "eth";
fea393b1 107 case OVS_KEY_ATTR_VLAN: return "vlan";
744791b5
BP		 108 case OVS_KEY_ATTR_ETHERTYPE: return "eth_type";
109 case OVS_KEY_ATTR_IPV4: return "ipv4";
110 case OVS_KEY_ATTR_IPV6: return "ipv6";
111 case OVS_KEY_ATTR_TCP: return "tcp";
112 case OVS_KEY_ATTR_UDP: return "udp";
c6bcb685 113 case OVS_KEY_ATTR_SCTP: return "sctp";
744791b5
BP		 114 case OVS_KEY_ATTR_ICMP: return "icmp";
115 case OVS_KEY_ATTR_ICMPV6: return "icmpv6";
116 case OVS_KEY_ATTR_ARP: return "arp";
117 case OVS_KEY_ATTR_ND: return "nd";
b02475c5 118 case OVS_KEY_ATTR_MPLS: return "mpls";
744791b5
BP		 119
120 case __OVS_KEY_ATTR_MAX:
121 default:
e6603631
BP		 122 snprintf(namebuf, bufsize, "key%u", (unsigned int) attr);
123 return namebuf;
744791b5
BP		 124 }
125}
126
cdee00fd
BP		 127static void
128format_generic_odp_action(struct ds *ds, const struct nlattr *a)
129{
8ba43fbd
BP		 130 size_t len = nl_attr_get_size(a);
131
cdee00fd 132 ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
8ba43fbd 133 if (len) {
cdee00fd
BP		 134 const uint8_t *unspec;
135 unsigned int i;
136
137 unspec = nl_attr_get(a);
8ba43fbd 138 for (i = 0; i < len; i++) {
cdee00fd
BP		 139 ds_put_char(ds, i ? ' ': '(');
140 ds_put_format(ds, "%02x", unspec[i]);
141 }
142 ds_put_char(ds, ')');
143 }
144}
145
6ff686f2
PS		 146static void
147format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
148{
149 static const struct nl_policy ovs_sample_policy[] = {
3815d6c2
LS		 150 { NL_A_NO_ATTR, 0, 0, false }, /* OVS_SAMPLE_ATTR_UNSPEC */
151 { NL_A_U32, 0, 0, false }, /* OVS_SAMPLE_ATTR_PROBABILITY */
152 { NL_A_NESTED, 0, 0, false }, /* OVS_SAMPLE_ATTR_ACTIONS */
6ff686f2
PS		 153 };
154 struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
6ff686f2
PS		 155 double percentage;
156 const struct nlattr *nla_acts;
157 int len;
158
159 ds_put_cstr(ds, "sample");
160
5621afff 161 if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
6ff686f2
PS		 162 ds_put_cstr(ds, "(error)");
163 return;
164 }
165
166 percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
167 UINT32_MAX;
168
169 ds_put_format(ds, "(sample=%.1f%%,", percentage);
170
171 ds_put_cstr(ds, "actions(");
172 nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
173 len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
174 format_odp_actions(ds, nla_acts, len);
175 ds_put_format(ds, "))");
176}
177
6a7e895f 178static const char *
04594cd5 179slow_path_reason_to_string(uint32_t reason)
6a7e895f 180{
04594cd5
BP		 181 switch ((enum slow_path_reason) reason) {
182#define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
183 SLOW_PATH_REASONS
184#undef SPR
6a7e895f 185 }
04594cd5
BP		 186
187 return NULL;
6a7e895f
BP		 188}
189
04594cd5
BP		 190const char *
191slow_path_reason_to_explanation(enum slow_path_reason reason)
98f0520f 192{
04594cd5
BP		 193 switch (reason) {
194#define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
195 SLOW_PATH_REASONS
196#undef SPR
98f0520f
EJ		 197 }
198
04594cd5 199 return "<unknown>";
98f0520f
EJ		 200}
201
ec956fc7
PS		 202static int
203parse_flags(const char *s, const char *(*bit_to_string)(uint32_t),
204 uint32_t *res)
205{
206 uint32_t result = 0;
207 int n = 0;
208
209 if (s[n] != '(') {
210 return -EINVAL;
211 }
212 n++;
213
214 while (s[n] != ')') {
215 unsigned long long int flags;
216 uint32_t bit;
217 int n0;
218
219 if (sscanf(&s[n], "%lli%n", &flags, &n0) > 0 && n0 > 0) {
220 n += n0 + (s[n + n0] == ',');
221 result |= flags;
222 continue;
223 }
224
225 for (bit = 1; bit; bit <<= 1) {
226 const char *name = bit_to_string(bit);
227 size_t len;
228
229 if (!name) {
230 continue;
231 }
232
233 len = strlen(name);
234 if (!strncmp(s + n, name, len) &&
235 (s[n + len] == ',' || s[n + len] == ')')) {
236 result |= bit;
237 n += len + (s[n + len] == ',');
238 break;
239 }
240 }
241
242 if (!bit) {
243 return -EINVAL;
244 }
245 }
246 n++;
247
248 *res = result;
249 return n;
6a7e895f
BP		 250}
251
98403001
BP		 252static void
253format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
254{
255 static const struct nl_policy ovs_userspace_policy[] = {
3815d6c2
LS		 256 { NL_A_NO_ATTR, 0, 0, false }, /* OVS_USERSPACE_ATTR_UNSPEC */
257 { NL_A_U32, 0, 0, false }, /* OVS_USERSPACE_ATTR_PID */
258 { NL_A_UNSPEC, 0, 0, true }, /* OVS_USERSPACE_ATTR_USERDATA */
98403001
BP		 259 };
260 struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
e995e3df 261 const struct nlattr *userdata_attr;
98403001
BP		 262
263 if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
264 ds_put_cstr(ds, "userspace(error)");
265 return;
266 }
267
268 ds_put_format(ds, "userspace(pid=%"PRIu32,
269 nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
270
e995e3df 271 userdata_attr = a[OVS_USERSPACE_ATTR_USERDATA];
29089a54
RL		 272
273 if (userdata_attr) {
274 const uint8_t *userdata = nl_attr_get(userdata_attr);
275 size_t userdata_len = nl_attr_get_size(userdata_attr);
276 bool userdata_unspec = true;
1673e0e4 277 union user_action_cookie cookie;
98403001 278
29089a54
RL		 279 if (userdata_len >= sizeof cookie.type
280 && userdata_len <= sizeof cookie) {
281
282 memset(&cookie, 0, sizeof cookie);
283 memcpy(&cookie, userdata, userdata_len);
284
285 userdata_unspec = false;
286
287 if (userdata_len == sizeof cookie.sflow
288 && cookie.type == USER_ACTION_COOKIE_SFLOW) {
289 ds_put_format(ds, ",sFlow("
290 "vid=%"PRIu16",pcp=%"PRIu8",output=%"PRIu32")",
291 vlan_tci_to_vid(cookie.sflow.vlan_tci),
292 vlan_tci_to_pcp(cookie.sflow.vlan_tci),
293 cookie.sflow.output);
294 } else if (userdata_len == sizeof cookie.slow_path
295 && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
04594cd5
BP		 296 ds_put_cstr(ds, ",slow_path(");
297 format_flags(ds, slow_path_reason_to_string,
298 cookie.slow_path.reason, ',');
299 ds_put_format(ds, ")");
29089a54
RL		 300 } else if (userdata_len == sizeof cookie.flow_sample
301 && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
302 ds_put_format(ds, ",flow_sample(probability=%"PRIu16
303 ",collector_set_id=%"PRIu32
304 ",obs_domain_id=%"PRIu32
305 ",obs_point_id=%"PRIu32")",
306 cookie.flow_sample.probability,
307 cookie.flow_sample.collector_set_id,
308 cookie.flow_sample.obs_domain_id,
309 cookie.flow_sample.obs_point_id);
310 } else if (userdata_len == sizeof cookie.ipfix
311 && cookie.type == USER_ACTION_COOKIE_IPFIX) {
312 ds_put_format(ds, ",ipfix");
313 } else {
314 userdata_unspec = true;
315 }
98403001 316 }
e995e3df 317
29089a54
RL		 318 if (userdata_unspec) {
319 size_t i;
320 ds_put_format(ds, ",userdata(");
321 for (i = 0; i < userdata_len; i++) {
322 ds_put_format(ds, "%02x", userdata[i]);
323 }
324 ds_put_char(ds, ')');
e995e3df 325 }
98403001
BP		 326 }
327
328 ds_put_char(ds, ')');
329}
330
8ddc056d
BP		 331static void
332format_vlan_tci(struct ds *ds, ovs_be16 vlan_tci)
333{
334 ds_put_format(ds, "vid=%"PRIu16",pcp=%d",
335 vlan_tci_to_vid(vlan_tci),
336 vlan_tci_to_pcp(vlan_tci));
337 if (!(vlan_tci & htons(VLAN_CFI))) {
338 ds_put_cstr(ds, ",cfi=0");
339 }
340}
341
b02475c5
SH		 342static void
343format_mpls_lse(struct ds *ds, ovs_be32 mpls_lse)
344{
345 ds_put_format(ds, "label=%"PRIu32",tc=%d,ttl=%d,bos=%d",
346 mpls_lse_to_label(mpls_lse),
347 mpls_lse_to_tc(mpls_lse),
348 mpls_lse_to_ttl(mpls_lse),
349 mpls_lse_to_bos(mpls_lse));
350}
351
e6cc0bab
AZ		 352static void
353format_mpls(struct ds *ds, const struct ovs_key_mpls *mpls_key,
354 const struct ovs_key_mpls *mpls_mask)
355{
356 ovs_be32 key = mpls_key->mpls_lse;
357
358 if (mpls_mask == NULL) {
359 format_mpls_lse(ds, key);
360 } else {
361 ovs_be32 mask = mpls_mask->mpls_lse;
362
363 ds_put_format(ds, "label=%"PRIu32"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
364 mpls_lse_to_label(key), mpls_lse_to_label(mask),
365 mpls_lse_to_tc(key), mpls_lse_to_tc(mask),
366 mpls_lse_to_ttl(key), mpls_lse_to_ttl(mask),
367 mpls_lse_to_bos(key), mpls_lse_to_bos(mask));
368 }
369}
370
4edb9ae9 371static void
cdee00fd 372format_odp_action(struct ds *ds, const struct nlattr *a)
064af421 373{
98403001 374 int expected_len;
4edb9ae9 375 enum ovs_action_attr type = nl_attr_type(a);
fea393b1 376 const struct ovs_action_push_vlan *vlan;
cdee00fd 377
98403001
BP		 378 expected_len = odp_action_len(nl_attr_type(a));
379 if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
8ba43fbd 380 ds_put_format(ds, "bad length %zu, expected %d for: ",
98403001 381 nl_attr_get_size(a), expected_len);
cdee00fd
BP		 382 format_generic_odp_action(ds, a);
383 return;
384 }
385
4edb9ae9 386 switch (type) {
df2c07f4 387 case OVS_ACTION_ATTR_OUTPUT:
26ce7705 388 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
064af421 389 break;
df2c07f4 390 case OVS_ACTION_ATTR_USERSPACE:
98403001 391 format_odp_userspace_action(ds, a);
064af421 392 break;
4edb9ae9
PS		 393 case OVS_ACTION_ATTR_SET:
394 ds_put_cstr(ds, "set(");
0a37839c 395 format_odp_key_attr(nl_attr_get(a), NULL, NULL, ds, true);
4edb9ae9 396 ds_put_cstr(ds, ")");
064af421 397 break;
fea393b1
BP		 398 case OVS_ACTION_ATTR_PUSH_VLAN:
399 vlan = nl_attr_get(a);
400 ds_put_cstr(ds, "push_vlan(");
401 if (vlan->vlan_tpid != htons(ETH_TYPE_VLAN)) {
402 ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(vlan->vlan_tpid));
403 }
8ddc056d
BP		 404 format_vlan_tci(ds, vlan->vlan_tci);
405 ds_put_char(ds, ')');
064af421 406 break;
fea393b1
BP		 407 case OVS_ACTION_ATTR_POP_VLAN:
408 ds_put_cstr(ds, "pop_vlan");
064af421 409 break;
b02475c5
SH		 410 case OVS_ACTION_ATTR_PUSH_MPLS: {
411 const struct ovs_action_push_mpls *mpls = nl_attr_get(a);
412 ds_put_cstr(ds, "push_mpls(");
413 format_mpls_lse(ds, mpls->mpls_lse);
414 ds_put_format(ds, ",eth_type=0x%"PRIx16")", ntohs(mpls->mpls_ethertype));
415 break;
416 }
417 case OVS_ACTION_ATTR_POP_MPLS: {
418 ovs_be16 ethertype = nl_attr_get_be16(a);
419 ds_put_format(ds, "pop_mpls(eth_type=0x%"PRIx16")", ntohs(ethertype));
420 break;
421 }
6ff686f2
PS		 422 case OVS_ACTION_ATTR_SAMPLE:
423 format_odp_sample_action(ds, a);
424 break;
4edb9ae9
PS		 425 case OVS_ACTION_ATTR_UNSPEC:
426 case __OVS_ACTION_ATTR_MAX:
064af421 427 default:
cdee00fd 428 format_generic_odp_action(ds, a);
064af421
BP		 429 break;
430 }
431}
432
433void
cdee00fd 434format_odp_actions(struct ds *ds, const struct nlattr *actions,
cf22f8cb 435 size_t actions_len)
064af421 436{
cdee00fd
BP		 437 if (actions_len) {
438 const struct nlattr *a;
439 unsigned int left;
440
441 NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
442 if (a != actions) {
443 ds_put_char(ds, ',');
444 }
445 format_odp_action(ds, a);
064af421 446 }
cdee00fd 447 if (left) {
3a8cfc50
BP		 448 int i;
449
3476fce3
BP		 450 if (left == actions_len) {
451 ds_put_cstr(ds, "<empty>");
452 }
3a8cfc50
BP		 453 ds_put_format(ds, ",***%u leftover bytes*** (", left);
454 for (i = 0; i < left; i++) {
455 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
456 }
457 ds_put_char(ds, ')');
cdee00fd
BP		 458 }
459 } else {
064af421
BP		 460 ds_put_cstr(ds, "drop");
461 }
462}
7202cbe5
BP		 463
464static int
44bac24b 465parse_odp_action(const char *s, const struct simap *port_names,
7202cbe5
BP		 466 struct ofpbuf *actions)
467{
468 /* Many of the sscanf calls in this function use oversized destination
469 * fields because some sscanf() implementations truncate the range of %i
470 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
471 * value of 0x7fff. The other alternatives are to allow only a single
472 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
473 * parsers.
474 *
475 * The tun_id parser has to use an alternative approach because there is no
476 * type larger than 64 bits. */
477
478 {
479 unsigned long long int port;
480 int n = -1;
481
482 if (sscanf(s, "%lli%n", &port, &n) > 0 && n > 0) {
483 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, port);
484 return n;
485 }
486 }
487
488 if (port_names) {
489 int len = strcspn(s, delimiters);
44bac24b 490 struct simap_node *node;
7202cbe5 491
44bac24b 492 node = simap_find_len(port_names, s, len);
7202cbe5 493 if (node) {
44bac24b 494 nl_msg_put_u32(actions, OVS_ACTION_ATTR_OUTPUT, node->data);
7202cbe5
BP		 495 return len;
496 }
497 }
498
499 {
500 unsigned long long int pid;
36fc5f18 501 unsigned long long int output;
29089a54
RL		 502 unsigned long long int probability;
503 unsigned long long int collector_set_id;
504 unsigned long long int obs_domain_id;
505 unsigned long long int obs_point_id;
7202cbe5
BP		 506 int vid, pcp;
507 int n = -1;
508
509 if (sscanf(s, "userspace(pid=%lli)%n", &pid, &n) > 0 && n > 0) {
e995e3df 510 odp_put_userspace_action(pid, NULL, 0, actions);
7202cbe5 511 return n;
6a7e895f
BP		 512 } else if (sscanf(s, "userspace(pid=%lli,sFlow(vid=%i,"
513 "pcp=%i,output=%lli))%n",
36fc5f18 514 &pid, &vid, &pcp, &output, &n) > 0 && n > 0) {
1673e0e4 515 union user_action_cookie cookie;
7202cbe5
BP		 516 uint16_t tci;
517
518 tci = vid | (pcp << VLAN_PCP_SHIFT);
519 if (tci) {
520 tci |= VLAN_CFI;
521 }
522
523 cookie.type = USER_ACTION_COOKIE_SFLOW;
1673e0e4
BP		 524 cookie.sflow.vlan_tci = htons(tci);
525 cookie.sflow.output = output;
29089a54
RL		 526 odp_put_userspace_action(pid, &cookie, sizeof cookie.sflow,
527 actions);
6a7e895f 528 return n;
04594cd5 529 } else if (sscanf(s, "userspace(pid=%lli,slow_path%n", &pid, &n) > 0
6a7e895f
BP		 530 && n > 0) {
531 union user_action_cookie cookie;
04594cd5 532 int res;
6a7e895f
BP		 533
534 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
535 cookie.slow_path.unused = 0;
04594cd5 536 cookie.slow_path.reason = 0;
6a7e895f 537
04594cd5
BP		 538 res = parse_flags(&s[n], slow_path_reason_to_string,
539 &cookie.slow_path.reason);
540 if (res < 0) {
541 return res;
542 }
543 n += res;
544 if (s[n] != ')') {
6a7e895f
BP		 545 return -EINVAL;
546 }
04594cd5 547 n++;
6a7e895f 548
29089a54
RL		 549 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path,
550 actions);
551 return n;
552 } else if (sscanf(s, "userspace(pid=%lli,flow_sample(probability=%lli,"
553 "collector_set_id=%lli,obs_domain_id=%lli,"
554 "obs_point_id=%lli))%n",
555 &pid, &probability, &collector_set_id,
556 &obs_domain_id, &obs_point_id, &n) > 0 && n > 0) {
557 union user_action_cookie cookie;
558
559 cookie.type = USER_ACTION_COOKIE_FLOW_SAMPLE;
560 cookie.flow_sample.probability = probability;
561 cookie.flow_sample.collector_set_id = collector_set_id;
562 cookie.flow_sample.obs_domain_id = obs_domain_id;
563 cookie.flow_sample.obs_point_id = obs_point_id;
564 odp_put_userspace_action(pid, &cookie, sizeof cookie.flow_sample,
565 actions);
7202cbe5 566 return n;
29089a54
RL		 567 } else if (sscanf(s, "userspace(pid=%lli,ipfix)%n", &pid, &n) > 0
568 && n > 0) {
569 union user_action_cookie cookie;
7202cbe5 570
29089a54
RL		 571 cookie.type = USER_ACTION_COOKIE_IPFIX;
572 odp_put_userspace_action(pid, &cookie, sizeof cookie.ipfix,
e995e3df 573 actions);
7202cbe5 574 return n;
e995e3df
BP		 575 } else if (sscanf(s, "userspace(pid=%lli,userdata(%n", &pid, &n) > 0
576 && n > 0) {
577 struct ofpbuf buf;
578 char *end;
579
580 ofpbuf_init(&buf, 16);
581 end = ofpbuf_put_hex(&buf, &s[n], NULL);
582 if (end[0] == ')' && end[1] == ')') {
583 odp_put_userspace_action(pid, buf.data, buf.size, actions);
584 ofpbuf_uninit(&buf);
585 return (end + 2) - s;
586 }
7202cbe5
BP		 587 }
588 }
589
590 if (!strncmp(s, "set(", 4)) {
591 size_t start_ofs;
592 int retval;
593
594 start_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SET);
e6cc0bab 595 retval = parse_odp_key_mask_attr(s + 4, port_names, actions, NULL);
7202cbe5
BP		 596 if (retval < 0) {
597 return retval;
598 }
599 if (s[retval + 4] != ')') {
600 return -EINVAL;
601 }
602 nl_msg_end_nested(actions, start_ofs);
603 return retval + 5;
604 }
605
becffb86
BP		 606 {
607 struct ovs_action_push_vlan push;
608 int tpid = ETH_TYPE_VLAN;
609 int vid, pcp;
610 int cfi = 1;
611 int n = -1;
7202cbe5 612
becffb86
BP		 613 if ((sscanf(s, "push_vlan(vid=%i,pcp=%i)%n", &vid, &pcp, &n) > 0
614 && n > 0)
615 || (sscanf(s, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
616 &vid, &pcp, &cfi, &n) > 0 && n > 0)
617 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
618 &tpid, &vid, &pcp, &n) > 0 && n > 0)
619 || (sscanf(s, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
620 &tpid, &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
621 push.vlan_tpid = htons(tpid);
622 push.vlan_tci = htons((vid << VLAN_VID_SHIFT)
623 | (pcp << VLAN_PCP_SHIFT)
624 | (cfi ? VLAN_CFI : 0));
625 nl_msg_put_unspec(actions, OVS_ACTION_ATTR_PUSH_VLAN,
626 &push, sizeof push);
627
628 return n;
7202cbe5 629 }
7202cbe5
BP		 630 }
631
becffb86
BP		 632 if (!strncmp(s, "pop_vlan", 8)) {
633 nl_msg_put_flag(actions, OVS_ACTION_ATTR_POP_VLAN);
634 return 8;
7202cbe5
BP		 635 }
636
637 {
638 double percentage;
639 int n = -1;
640
641 if (sscanf(s, "sample(sample=%lf%%,actions(%n", &percentage, &n) > 0
642 && percentage >= 0. && percentage <= 100.0
643 && n > 0) {
644 size_t sample_ofs, actions_ofs;
645 double probability;
646
647 probability = floor(UINT32_MAX * (percentage / 100.0) + .5);
648 sample_ofs = nl_msg_start_nested(actions, OVS_ACTION_ATTR_SAMPLE);
649 nl_msg_put_u32(actions, OVS_SAMPLE_ATTR_PROBABILITY,
650 (probability <= 0 ? 0
651 : probability >= UINT32_MAX ? UINT32_MAX
652 : probability));
653
654 actions_ofs = nl_msg_start_nested(actions,
655 OVS_SAMPLE_ATTR_ACTIONS);
656 for (;;) {
657 int retval;
658
79d4ffe2 659 n += strspn(s + n, delimiters);
7202cbe5
BP		 660 if (s[n] == ')') {
661 break;
662 }
663
664 retval = parse_odp_action(s + n, port_names, actions);
665 if (retval < 0) {
666 return retval;
667 }
668 n += retval;
7202cbe5
BP		 669 }
670 nl_msg_end_nested(actions, actions_ofs);
671 nl_msg_end_nested(actions, sample_ofs);
672
673 return s[n + 1] == ')' ? n + 2 : -EINVAL;
674 }
675 }
676
677 return -EINVAL;
678}
679
680/* Parses the string representation of datapath actions, in the format output
681 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
682 * value. On success, the ODP actions are appended to 'actions' as a series of
683 * Netlink attributes. On failure, no data is appended to 'actions'. Either
684 * way, 'actions''s data might be reallocated. */
685int
44bac24b 686odp_actions_from_string(const char *s, const struct simap *port_names,
7202cbe5
BP		 687 struct ofpbuf *actions)
688{
689 size_t old_size;
690
691 if (!strcasecmp(s, "drop")) {
692 return 0;
693 }
694
695 old_size = actions->size;
696 for (;;) {
697 int retval;
698
699 s += strspn(s, delimiters);
700 if (!*s) {
701 return 0;
702 }
703
704 retval = parse_odp_action(s, port_names, actions);
705 if (retval < 0 || !strchr(delimiters, s[retval])) {
706 actions->size = old_size;
707 return -retval;
708 }
709 s += retval;
710 }
711
712 return 0;
713}
14608a15 714\f
36956a7d 715/* Returns the correct length of the payload for a flow key attribute of the
fea393b1
BP		 716 * specified 'type', -1 if 'type' is unknown, or -2 if the attribute's payload
717 * is variable length. */
36956a7d
BP		 718static int
719odp_flow_key_attr_len(uint16_t type)
720{
df2c07f4 721 if (type > OVS_KEY_ATTR_MAX) {
36956a7d
BP		 722 return -1;
723 }
724
09ded0ad 725 switch ((enum ovs_key_attr) type) {
fea393b1 726 case OVS_KEY_ATTR_ENCAP: return -2;
abff858b 727 case OVS_KEY_ATTR_PRIORITY: return 4;
72e8bf28 728 case OVS_KEY_ATTR_SKB_MARK: return 4;
9b405f1a 729 case OVS_KEY_ATTR_TUNNEL: return -2;
df2c07f4
JP		 730 case OVS_KEY_ATTR_IN_PORT: return 4;
731 case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
fea393b1 732 case OVS_KEY_ATTR_VLAN: return sizeof(ovs_be16);
df2c07f4 733 case OVS_KEY_ATTR_ETHERTYPE: return 2;
b02475c5 734 case OVS_KEY_ATTR_MPLS: return sizeof(struct ovs_key_mpls);
df2c07f4
JP		 735 case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
736 case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
737 case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
738 case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
c6bcb685 739 case OVS_KEY_ATTR_SCTP: return sizeof(struct ovs_key_sctp);
df2c07f4
JP		 740 case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
741 case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
742 case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
743 case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
744
745 case OVS_KEY_ATTR_UNSPEC:
746 case __OVS_KEY_ATTR_MAX:
36956a7d
BP		 747 return -1;
748 }
749
750 return -1;
751}
752
36956a7d
BP		 753static void
754format_generic_odp_key(const struct nlattr *a, struct ds *ds)
755{
756 size_t len = nl_attr_get_size(a);
36956a7d
BP		 757 if (len) {
758 const uint8_t *unspec;
759 unsigned int i;
760
761 unspec = nl_attr_get(a);
762 for (i = 0; i < len; i++) {
e6cc0bab
AZ		 763 if (i) {
764 ds_put_char(ds, ' ');
765 }
36956a7d
BP		 766 ds_put_format(ds, "%02x", unspec[i]);
767 }
36956a7d
BP		 768 }
769}
770
7257b535
BP		 771static const char *
772ovs_frag_type_to_string(enum ovs_frag_type type)
773{
774 switch (type) {
775 case OVS_FRAG_TYPE_NONE:
776 return "no";
777 case OVS_FRAG_TYPE_FIRST:
778 return "first";
779 case OVS_FRAG_TYPE_LATER:
780 return "later";
781 case __OVS_FRAG_TYPE_MAX:
782 default:
783 return "<error>";
784 }
785}
786
9b405f1a
PS		 787static int
788tunnel_key_attr_len(int type)
29c7a2b2 789{
9b405f1a
PS		 790 switch (type) {
791 case OVS_TUNNEL_KEY_ATTR_ID: return 8;
792 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC: return 4;
793 case OVS_TUNNEL_KEY_ATTR_IPV4_DST: return 4;
794 case OVS_TUNNEL_KEY_ATTR_TOS: return 1;
795 case OVS_TUNNEL_KEY_ATTR_TTL: return 1;
796 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
797 case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
798 case __OVS_TUNNEL_KEY_ATTR_MAX:
799 return -1;
29c7a2b2 800 }
9b405f1a
PS		 801 return -1;
802}
803
617e10e7
SH		 804enum odp_key_fitness
805odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
9b405f1a
PS		 806{
807 unsigned int left;
808 const struct nlattr *a;
809 bool ttl = false;
810 bool unknown = false;
811
812 NL_NESTED_FOR_EACH(a, left, attr) {
813 uint16_t type = nl_attr_type(a);
814 size_t len = nl_attr_get_size(a);
815 int expected_len = tunnel_key_attr_len(type);
816
817 if (len != expected_len && expected_len >= 0) {
818 return ODP_FIT_ERROR;
819 }
820
821 switch (type) {
822 case OVS_TUNNEL_KEY_ATTR_ID:
823 tun->tun_id = nl_attr_get_be64(a);
824 tun->flags |= FLOW_TNL_F_KEY;
825 break;
826 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
827 tun->ip_src = nl_attr_get_be32(a);
828 break;
829 case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
830 tun->ip_dst = nl_attr_get_be32(a);
831 break;
832 case OVS_TUNNEL_KEY_ATTR_TOS:
833 tun->ip_tos = nl_attr_get_u8(a);
834 break;
835 case OVS_TUNNEL_KEY_ATTR_TTL:
836 tun->ip_ttl = nl_attr_get_u8(a);
837 ttl = true;
838 break;
839 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
840 tun->flags |= FLOW_TNL_F_DONT_FRAGMENT;
841 break;
842 case OVS_TUNNEL_KEY_ATTR_CSUM:
843 tun->flags |= FLOW_TNL_F_CSUM;
844 break;
845 default:
846 /* Allow this to show up as unexpected, if there are unknown
847 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
848 unknown = true;
849 break;
850 }
851 }
852
853 if (!ttl) {
854 return ODP_FIT_ERROR;
855 }
856 if (unknown) {
857 return ODP_FIT_TOO_MUCH;
858 }
859 return ODP_FIT_PERFECT;
860}
861
862static void
863tun_key_to_attr(struct ofpbuf *a, const struct flow_tnl *tun_key)
864{
865 size_t tun_key_ofs;
866
867 tun_key_ofs = nl_msg_start_nested(a, OVS_KEY_ATTR_TUNNEL);
868
869 if (tun_key->flags & FLOW_TNL_F_KEY) {
870 nl_msg_put_be64(a, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id);
871 }
872 if (tun_key->ip_src) {
873 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ip_src);
874 }
875 if (tun_key->ip_dst) {
876 nl_msg_put_be32(a, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ip_dst);
877 }
878 if (tun_key->ip_tos) {
879 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ip_tos);
880 }
881 nl_msg_put_u8(a, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ip_ttl);
882 if (tun_key->flags & FLOW_TNL_F_DONT_FRAGMENT) {
883 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT);
884 }
885 if (tun_key->flags & FLOW_TNL_F_CSUM) {
886 nl_msg_put_flag(a, OVS_TUNNEL_KEY_ATTR_CSUM);
887 }
888
889 nl_msg_end_nested(a, tun_key_ofs);
29c7a2b2
PS		 890}
891
041e7168
AZ		 892static bool
893odp_mask_attr_is_wildcard(const struct nlattr *ma)
894{
895 return is_all_zeros(nl_attr_get(ma), nl_attr_get_size(ma));
896}
897
e6cc0bab
AZ		 898static bool
899odp_mask_attr_is_exact(const struct nlattr *ma)
900{
901 bool is_exact = false;
902 enum ovs_key_attr attr = nl_attr_type(ma);
903
904 if (attr == OVS_KEY_ATTR_TUNNEL) {
905 /* XXX this is a hack for now. Should change
906 * the exact match dection to per field
907 * instead of per attribute.
908 */
909 struct flow_tnl tun_mask;
910 memset(&tun_mask, 0, sizeof tun_mask);
911 odp_tun_key_from_attr(ma, &tun_mask);
912 if (tun_mask.flags == (FLOW_TNL_F_KEY
913 | FLOW_TNL_F_DONT_FRAGMENT
914 | FLOW_TNL_F_CSUM)) {
915 /* The flags are exact match, check the remaining fields. */
916 tun_mask.flags = 0xffff;
917 is_exact = is_all_ones((uint8_t *)&tun_mask,
918 offsetof(struct flow_tnl, ip_ttl));
919 }
920 } else {
921 is_exact = is_all_ones(nl_attr_get(ma), nl_attr_get_size(ma));
922 }
923
924 return is_exact;
925}
926
0a37839c
GS		 927void
928odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
929 char *port_name)
930{
931 struct odp_portno_names *odp_portno_names;
932
933 odp_portno_names = xmalloc(sizeof *odp_portno_names);
934 odp_portno_names->port_no = port_no;
935 odp_portno_names->name = xstrdup(port_name);
936 hmap_insert(portno_names, &odp_portno_names->hmap_node,
937 hash_odp_port(port_no));
938}
939
940static char *
941odp_portno_names_get(const struct hmap *portno_names, odp_port_t port_no)
942{
943 struct odp_portno_names *odp_portno_names;
944
945 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names, hmap_node,
946 hash_odp_port(port_no), portno_names) {
947 if (odp_portno_names->port_no == port_no) {
948 return odp_portno_names->name;
949 }
950 }
951 return NULL;
952}
953
954void
955odp_portno_names_destroy(struct hmap *portno_names)
956{
957 struct odp_portno_names *odp_portno_names, *odp_portno_names_next;
958 HMAP_FOR_EACH_SAFE (odp_portno_names, odp_portno_names_next,
959 hmap_node, portno_names) {
960 hmap_remove(portno_names, &odp_portno_names->hmap_node);
961 free(odp_portno_names->name);
962 free(odp_portno_names);
963 }
964}
e6cc0bab 965
36956a7d 966static void
e6cc0bab 967format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
0a37839c
GS		 968 const struct hmap *portno_names, struct ds *ds,
969 bool verbose)
36956a7d 970{
9b405f1a 971 struct flow_tnl tun_key;
7a8e9ed2 972 enum ovs_key_attr attr = nl_attr_type(a);
e6603631 973 char namebuf[OVS_KEY_ATTR_BUFSIZE];
fea393b1 974 int expected_len;
dc8c5408 975 bool is_exact;
36956a7d 976
dc8c5408 977 is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
e6cc0bab 978
e6603631 979 ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
e6cc0bab
AZ		 980
981 {
982 expected_len = odp_flow_key_attr_len(nl_attr_type(a));
983 if (expected_len != -2) {
984 bool bad_key_len = nl_attr_get_size(a) != expected_len;
985 bool bad_mask_len = ma && nl_attr_get_size(a) != expected_len;
986
987 if (bad_key_len || bad_mask_len) {
988 if (bad_key_len) {
989 ds_put_format(ds, "(bad key length %zu, expected %d)(",
990 nl_attr_get_size(a),
991 odp_flow_key_attr_len(nl_attr_type(a)));
992 }
993 format_generic_odp_key(a, ds);
994 if (bad_mask_len) {
995 ds_put_char(ds, '/');
996 ds_put_format(ds, "(bad mask length %zu, expected %d)(",
997 nl_attr_get_size(ma),
998 odp_flow_key_attr_len(nl_attr_type(ma)));
999 }
1000 format_generic_odp_key(ma, ds);
1001 ds_put_char(ds, ')');
1002 return;
1003 }
1004 }
36956a7d
BP		 1005 }
1006
e6cc0bab 1007 ds_put_char(ds, '(');
7a8e9ed2 1008 switch (attr) {
fea393b1 1009 case OVS_KEY_ATTR_ENCAP:
e6cc0bab
AZ		 1010 if (ma && nl_attr_get_size(ma) && nl_attr_get_size(a)) {
1011 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a),
0a37839c 1012 nl_attr_get(ma), nl_attr_get_size(ma), NULL, ds,
041e7168 1013 verbose);
0a37839c
GS		 1014 } else if (nl_attr_get_size(a)) {
1015 odp_flow_format(nl_attr_get(a), nl_attr_get_size(a), NULL, 0, NULL,
1016 ds, verbose);
fea393b1 1017 }
fea393b1
BP		 1018 break;
1019
abff858b 1020 case OVS_KEY_ATTR_PRIORITY:
72e8bf28 1021 case OVS_KEY_ATTR_SKB_MARK:
e6cc0bab 1022 ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
dc8c5408 1023 if (!is_exact) {
e6cc0bab
AZ		 1024 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1025 }
72e8bf28
AA		 1026 break;
1027
9b405f1a
PS		 1028 case OVS_KEY_ATTR_TUNNEL:
1029 memset(&tun_key, 0, sizeof tun_key);
617e10e7 1030 if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
e6cc0bab 1031 ds_put_format(ds, "error");
dc8c5408 1032 } else if (!is_exact) {
e6cc0bab
AZ		 1033 struct flow_tnl tun_mask;
1034
1035 memset(&tun_mask, 0, sizeof tun_mask);
1036 odp_tun_key_from_attr(ma, &tun_mask);
1037 ds_put_format(ds, "tun_id=%#"PRIx64"/%#"PRIx64
1038 ",src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1039 ",tos=%#"PRIx8"/%#"PRIx8",ttl=%"PRIu8"/%#"PRIx8
1040 ",flags(",
1041 ntohll(tun_key.tun_id), ntohll(tun_mask.tun_id),
1042 IP_ARGS(tun_key.ip_src), IP_ARGS(tun_mask.ip_src),
1043 IP_ARGS(tun_key.ip_dst), IP_ARGS(tun_mask.ip_dst),
1044 tun_key.ip_tos, tun_mask.ip_tos,
1045 tun_key.ip_ttl, tun_mask.ip_ttl);
1046
1047 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1048
1049 /* XXX This code is correct, but enabling it would break the unit
1050 test. Disable it for now until the input parser is fixed.
1051
1052 ds_put_char(ds, '/');
1053 format_flags(ds, flow_tun_flag_to_string, tun_mask.flags, ',');
1054 */
1055 ds_put_char(ds, ')');
9b405f1a 1056 } else {
e6cc0bab 1057 ds_put_format(ds, "tun_id=0x%"PRIx64",src="IP_FMT",dst="IP_FMT","
9b405f1a
PS		 1058 "tos=0x%"PRIx8",ttl=%"PRIu8",flags(",
1059 ntohll(tun_key.tun_id),
1060 IP_ARGS(tun_key.ip_src),
1061 IP_ARGS(tun_key.ip_dst),
1062 tun_key.ip_tos, tun_key.ip_ttl);
1063
e6cc0bab
AZ		 1064 format_flags(ds, flow_tun_flag_to_string, tun_key.flags, ',');
1065 ds_put_char(ds, ')');
9b405f1a 1066 }
356af50b
KM		 1067 break;
1068
df2c07f4 1069 case OVS_KEY_ATTR_IN_PORT:
0a37839c
GS		 1070 if (portno_names && verbose && is_exact) {
1071 char *name = odp_portno_names_get(portno_names,
1072 u32_to_odp(nl_attr_get_u32(a)));
1073 if (name) {
1074 ds_put_format(ds, "%s", name);
1075 } else {
1076 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1077 }
1078 } else {
1079 ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
1080 if (!is_exact) {
1081 ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
1082 }
e6cc0bab 1083 }
36956a7d
BP		 1084 break;
1085
df2c07f4 1086 case OVS_KEY_ATTR_ETHERNET:
dc8c5408 1087 if (!is_exact) {
e6cc0bab
AZ		 1088 const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
1089 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1090
1091 ds_put_format(ds, "src="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1092 ",dst="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1093 ETH_ADDR_ARGS(eth_key->eth_src),
1094 ETH_ADDR_ARGS(eth_mask->eth_src),
1095 ETH_ADDR_ARGS(eth_key->eth_dst),
1096 ETH_ADDR_ARGS(eth_mask->eth_dst));
1097 } else {
1098 const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
1099
1100 ds_put_format(ds, "src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT,
1101 ETH_ADDR_ARGS(eth_key->eth_src),
1102 ETH_ADDR_ARGS(eth_key->eth_dst));
1103 }
36956a7d
BP		 1104 break;
1105
fea393b1 1106 case OVS_KEY_ATTR_VLAN:
e6cc0bab
AZ		 1107 {
1108 ovs_be16 vlan_tci = nl_attr_get_be16(a);
dc8c5408 1109 if (!is_exact) {
e6cc0bab 1110 ovs_be16 mask = nl_attr_get_be16(ma);
2d39507c 1111 ds_put_format(ds, "vid=%"PRIu16"/0x%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
e6cc0bab
AZ		 1112 vlan_tci_to_vid(vlan_tci),
1113 vlan_tci_to_vid(mask),
1114 vlan_tci_to_pcp(vlan_tci),
b06b6a39 1115 vlan_tci_to_pcp(mask),
e6cc0bab
AZ		 1116 vlan_tci_to_cfi(vlan_tci),
1117 vlan_tci_to_cfi(mask));
1118 } else {
1119 format_vlan_tci(ds, vlan_tci);
1120 }
1121 }
36956a7d
BP		 1122 break;
1123
b02475c5
SH		 1124 case OVS_KEY_ATTR_MPLS: {
1125 const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
e6cc0bab 1126 const struct ovs_key_mpls *mpls_mask = NULL;
dc8c5408 1127 if (!is_exact) {
e6cc0bab
AZ		 1128 mpls_mask = nl_attr_get(ma);
1129 }
1130 format_mpls(ds, mpls_key, mpls_mask);
b02475c5
SH		 1131 break;
1132 }
1133
df2c07f4 1134 case OVS_KEY_ATTR_ETHERTYPE:
e6cc0bab 1135 ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
dc8c5408 1136 if (!is_exact) {
e6cc0bab
AZ		 1137 ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
1138 }
36956a7d
BP		 1139 break;
1140
df2c07f4 1141 case OVS_KEY_ATTR_IPV4:
dc8c5408 1142 if (!is_exact) {
e6cc0bab
AZ		 1143 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1144 const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
1145
1146 ds_put_format(ds, "src="IP_FMT"/"IP_FMT",dst="IP_FMT"/"IP_FMT
1147 ",proto=%"PRIu8"/%#"PRIx8",tos=%#"PRIx8"/%#"PRIx8
1148 ",ttl=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1149 IP_ARGS(ipv4_key->ipv4_src),
1150 IP_ARGS(ipv4_mask->ipv4_src),
1151 IP_ARGS(ipv4_key->ipv4_dst),
1152 IP_ARGS(ipv4_mask->ipv4_dst),
1153 ipv4_key->ipv4_proto, ipv4_mask->ipv4_proto,
1154 ipv4_key->ipv4_tos, ipv4_mask->ipv4_tos,
1155 ipv4_key->ipv4_ttl, ipv4_mask->ipv4_ttl,
1156 ovs_frag_type_to_string(ipv4_key->ipv4_frag),
1157 ipv4_mask->ipv4_frag);
1158 } else {
1159 const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
1160
1161 ds_put_format(ds, "src="IP_FMT",dst="IP_FMT",proto=%"PRIu8
1162 ",tos=%#"PRIx8",ttl=%"PRIu8",frag=%s",
1163 IP_ARGS(ipv4_key->ipv4_src),
1164 IP_ARGS(ipv4_key->ipv4_dst),
1165 ipv4_key->ipv4_proto, ipv4_key->ipv4_tos,
1166 ipv4_key->ipv4_ttl,
1167 ovs_frag_type_to_string(ipv4_key->ipv4_frag));
1168 }
36956a7d
BP		 1169 break;
1170
e6cc0bab 1171 case OVS_KEY_ATTR_IPV6:
dc8c5408 1172 if (!is_exact) {
e6cc0bab
AZ		 1173 const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
1174 char src_str[INET6_ADDRSTRLEN];
1175 char dst_str[INET6_ADDRSTRLEN];
1176 char src_mask[INET6_ADDRSTRLEN];
1177 char dst_mask[INET6_ADDRSTRLEN];
1178
1179 ipv6_key = nl_attr_get(a);
1180 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1181 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1182
1183 ipv6_mask = nl_attr_get(ma);
1184 inet_ntop(AF_INET6, ipv6_mask->ipv6_src, src_mask, sizeof src_mask);
1185 inet_ntop(AF_INET6, ipv6_mask->ipv6_dst, dst_mask, sizeof dst_mask);
1186
1187 ds_put_format(ds, "src=%s/%s,dst=%s/%s,label=%#"PRIx32"/%#"PRIx32
1188 ",proto=%"PRIu8"/%#"PRIx8",tclass=%#"PRIx8"/%#"PRIx8
1189 ",hlimit=%"PRIu8"/%#"PRIx8",frag=%s/%#"PRIx8,
1190 src_str, src_mask, dst_str, dst_mask,
1191 ntohl(ipv6_key->ipv6_label),
1192 ntohl(ipv6_mask->ipv6_label),
1193 ipv6_key->ipv6_proto, ipv6_mask->ipv6_proto,
1194 ipv6_key->ipv6_tclass, ipv6_mask->ipv6_tclass,
1195 ipv6_key->ipv6_hlimit, ipv6_mask->ipv6_hlimit,
1196 ovs_frag_type_to_string(ipv6_key->ipv6_frag),
1197 ipv6_mask->ipv6_frag);
1198 } else {
1199 const struct ovs_key_ipv6 *ipv6_key;
1200 char src_str[INET6_ADDRSTRLEN];
1201 char dst_str[INET6_ADDRSTRLEN];
1202
1203 ipv6_key = nl_attr_get(a);
1204 inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
1205 inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
1206
1207 ds_put_format(ds, "src=%s,dst=%s,label=%#"PRIx32",proto=%"PRIu8
1208 ",tclass=%#"PRIx8",hlimit=%"PRIu8",frag=%s",
1209 src_str, dst_str, ntohl(ipv6_key->ipv6_label),
1210 ipv6_key->ipv6_proto, ipv6_key->ipv6_tclass,
1211 ipv6_key->ipv6_hlimit,
1212 ovs_frag_type_to_string(ipv6_key->ipv6_frag));
1213 }
d31f1109 1214 break;
d31f1109 1215
df2c07f4 1216 case OVS_KEY_ATTR_TCP:
dc8c5408 1217 if (!is_exact) {
e6cc0bab
AZ		 1218 const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
1219 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1220
1221 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1222 ",dst=%"PRIu16"/%#"PRIx16,
1223 ntohs(tcp_key->tcp_src), ntohs(tcp_mask->tcp_src),
1224 ntohs(tcp_key->tcp_dst), ntohs(tcp_mask->tcp_dst));
1225 } else {
1226 const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
1227
1228 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1229 ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
1230 }
36956a7d
BP		 1231 break;
1232
df2c07f4 1233 case OVS_KEY_ATTR_UDP:
dc8c5408 1234 if (!is_exact) {
e6cc0bab
AZ		 1235 const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
1236 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1237
1238 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1239 ",dst=%"PRIu16"/%#"PRIx16,
1240 ntohs(udp_key->udp_src), ntohs(udp_mask->udp_src),
1241 ntohs(udp_key->udp_dst), ntohs(udp_mask->udp_dst));
1242 } else {
1243 const struct ovs_key_udp *udp_key = nl_attr_get(a);
1244
1245 ds_put_format(ds, "src=%"PRIu16",dst=%"PRIu16,
1246 ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
1247 }
36956a7d
BP		 1248 break;
1249
c6bcb685
JS		 1250 case OVS_KEY_ATTR_SCTP:
1251 if (ma) {
1252 const struct ovs_key_sctp *sctp_mask = nl_attr_get(ma);
1253 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1254
1255 ds_put_format(ds, "src=%"PRIu16"/%#"PRIx16
1256 ",dst=%"PRIu16"/%#"PRIx16,
1257 ntohs(sctp_key->sctp_src), ntohs(sctp_mask->sctp_src),
1258 ntohs(sctp_key->sctp_dst), ntohs(sctp_mask->sctp_dst));
1259 } else {
1260 const struct ovs_key_sctp *sctp_key = nl_attr_get(a);
1261
1262 ds_put_format(ds, "(src=%"PRIu16",dst=%"PRIu16")",
1263 ntohs(sctp_key->sctp_src), ntohs(sctp_key->sctp_dst));
1264 }
1265 break;
1266
df2c07f4 1267 case OVS_KEY_ATTR_ICMP:
dc8c5408 1268 if (!is_exact) {
e6cc0bab
AZ		 1269 const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
1270 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1271
1272 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1273 icmp_key->icmp_type, icmp_mask->icmp_type,
1274 icmp_key->icmp_code, icmp_mask->icmp_code);
1275 } else {
1276 const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
1277
1278 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1279 icmp_key->icmp_type, icmp_key->icmp_code);
1280 }
36956a7d
BP		 1281 break;
1282
df2c07f4 1283 case OVS_KEY_ATTR_ICMPV6:
dc8c5408 1284 if (!is_exact) {
e6cc0bab
AZ		 1285 const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
1286 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1287
1288 ds_put_format(ds, "type=%"PRIu8"/%#"PRIx8",code=%"PRIu8"/%#"PRIx8,
1289 icmpv6_key->icmpv6_type, icmpv6_mask->icmpv6_type,
1290 icmpv6_key->icmpv6_code, icmpv6_mask->icmpv6_code);
1291 } else {
1292 const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
1293
1294 ds_put_format(ds, "type=%"PRIu8",code=%"PRIu8,
1295 icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
1296 }
d31f1109
JP		 1297 break;
1298
df2c07f4 1299 case OVS_KEY_ATTR_ARP:
dc8c5408 1300 if (!is_exact) {
e6cc0bab
AZ		 1301 const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
1302 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1303
1304 ds_put_format(ds, "sip="IP_FMT"/"IP_FMT",tip="IP_FMT"/"IP_FMT
1305 ",op=%"PRIu16"/%#"PRIx16
1306 ",sha="ETH_ADDR_FMT"/"ETH_ADDR_FMT
1307 ",tha="ETH_ADDR_FMT"/"ETH_ADDR_FMT,
1308 IP_ARGS(arp_key->arp_sip),
1309 IP_ARGS(arp_mask->arp_sip),
1310 IP_ARGS(arp_key->arp_tip),
1311 IP_ARGS(arp_mask->arp_tip),
1312 ntohs(arp_key->arp_op), ntohs(arp_mask->arp_op),
1313 ETH_ADDR_ARGS(arp_key->arp_sha),
1314 ETH_ADDR_ARGS(arp_mask->arp_sha),
1315 ETH_ADDR_ARGS(arp_key->arp_tha),
1316 ETH_ADDR_ARGS(arp_mask->arp_tha));
1317 } else {
1318 const struct ovs_key_arp *arp_key = nl_attr_get(a);
1319
1320 ds_put_format(ds, "sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
1321 "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT,
1322 IP_ARGS(arp_key->arp_sip), IP_ARGS(arp_key->arp_tip),
1323 ntohs(arp_key->arp_op),
1324 ETH_ADDR_ARGS(arp_key->arp_sha),
1325 ETH_ADDR_ARGS(arp_key->arp_tha));
1326 }
36956a7d
BP		 1327 break;
1328
df2c07f4 1329 case OVS_KEY_ATTR_ND: {
dc8c5408 1330 const struct ovs_key_nd *nd_key, *nd_mask = NULL;
685a51a5
JP		 1331 char target[INET6_ADDRSTRLEN];
1332
1333 nd_key = nl_attr_get(a);
dc8c5408
AZ		 1334 if (!is_exact) {
1335 nd_mask = nl_attr_get(ma);
1336 }
e6cc0bab 1337
685a51a5 1338 inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
e6cc0bab 1339 ds_put_format(ds, "target=%s", target);
dc8c5408 1340 if (!is_exact) {
e6cc0bab
AZ		 1341 inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
1342 ds_put_format(ds, "/%s", target);
1343 }
685a51a5 1344
685a51a5
JP		 1345 if (!eth_addr_is_zero(nd_key->nd_sll)) {
1346 ds_put_format(ds, ",sll="ETH_ADDR_FMT,
1347 ETH_ADDR_ARGS(nd_key->nd_sll));
dc8c5408 1348 if (!is_exact) {
e6cc0bab
AZ		 1349 ds_put_format(ds, "/"ETH_ADDR_FMT,
1350 ETH_ADDR_ARGS(nd_mask->nd_sll));
1351 }
685a51a5
JP		 1352 }
1353 if (!eth_addr_is_zero(nd_key->nd_tll)) {
1354 ds_put_format(ds, ",tll="ETH_ADDR_FMT,
1355 ETH_ADDR_ARGS(nd_key->nd_tll));
dc8c5408 1356 if (!is_exact) {
e6cc0bab
AZ		 1357 ds_put_format(ds, "/"ETH_ADDR_FMT,
1358 ETH_ADDR_ARGS(nd_mask->nd_tll));
1359 }
685a51a5 1360 }
685a51a5
JP		 1361 break;
1362 }
1363
7a8e9ed2
BP		 1364 case OVS_KEY_ATTR_UNSPEC:
1365 case __OVS_KEY_ATTR_MAX:
36956a7d
BP		 1366 default:
1367 format_generic_odp_key(a, ds);
dc8c5408 1368 if (!is_exact) {
e6cc0bab
AZ		 1369 ds_put_char(ds, '/');
1370 format_generic_odp_key(ma, ds);
1371 }
36956a7d
BP		 1372 break;
1373 }
e6cc0bab 1374 ds_put_char(ds, ')');
36956a7d
BP		 1375}
1376
dc8c5408
AZ		 1377static struct nlattr *
1378generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
1379{
1380 const struct nlattr *a;
1381 unsigned int left;
1382 int type = nl_attr_type(key);
1383 int size = nl_attr_get_size(key);
1384
1385 if (odp_flow_key_attr_len(type) >=0) {
1386 memset(nl_msg_put_unspec_uninit(ofp, type, size), 0, size);
1387 } else {
1388 size_t nested_mask;
1389
1390 nested_mask = nl_msg_start_nested(ofp, type);
1391 NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
1392 generate_all_wildcard_mask(ofp, nl_attr_get(a));
1393 }
1394 nl_msg_end_nested(ofp, nested_mask);
1395 }
1396
1397 return ofp->base;
1398}
1399
36956a7d 1400/* Appends to 'ds' a string representation of the 'key_len' bytes of
e6cc0bab
AZ		 1401 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
1402 * 'mask_len' bytes of 'mask' which apply to 'key'. */
14608a15 1403void
e6cc0bab
AZ		 1404odp_flow_format(const struct nlattr *key, size_t key_len,
1405 const struct nlattr *mask, size_t mask_len,
0a37839c 1406 const struct hmap *portno_names, struct ds *ds, bool verbose)
14608a15 1407{
36956a7d
BP		 1408 if (key_len) {
1409 const struct nlattr *a;
1410 unsigned int left;
e6cc0bab
AZ		 1411 bool has_ethtype_key = false;
1412 const struct nlattr *ma = NULL;
dc8c5408 1413 struct ofpbuf ofp;
041e7168 1414 bool first_field = true;
36956a7d 1415
dc8c5408 1416 ofpbuf_init(&ofp, 100);
36956a7d 1417 NL_ATTR_FOR_EACH (a, left, key, key_len) {
041e7168
AZ		 1418 bool is_nested_attr;
1419 bool is_wildcard = false;
1420 int attr_type = nl_attr_type(a);
1421
1422 if (attr_type == OVS_KEY_ATTR_ETHERTYPE) {
e6cc0bab
AZ		 1423 has_ethtype_key = true;
1424 }
041e7168
AZ		 1425
1426 is_nested_attr = (odp_flow_key_attr_len(attr_type) == -2);
1427
e6cc0bab
AZ		 1428 if (mask && mask_len) {
1429 ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
041e7168
AZ		 1430 is_wildcard = ma ? odp_mask_attr_is_wildcard(ma) : true;
1431 }
1432
1433 if (verbose || !is_wildcard || is_nested_attr) {
1434 if (is_wildcard && !ma) {
dc8c5408
AZ		 1435 ma = generate_all_wildcard_mask(&ofp, a);
1436 }
041e7168
AZ		 1437 if (!first_field) {
1438 ds_put_char(ds, ',');
1439 }
0a37839c 1440 format_odp_key_attr(a, ma, portno_names, ds, verbose);
041e7168 1441 first_field = false;
e6cc0bab 1442 }
dc8c5408 1443 ofpbuf_clear(&ofp);
36956a7d 1444 }
dc8c5408
AZ		 1445 ofpbuf_uninit(&ofp);
1446
36956a7d 1447 if (left) {
3a8cfc50 1448 int i;
1394054e 1449
36956a7d
BP		 1450 if (left == key_len) {
1451 ds_put_cstr(ds, "<empty>");
1452 }
3a8cfc50
BP		 1453 ds_put_format(ds, ",***%u leftover bytes*** (", left);
1454 for (i = 0; i < left; i++) {
1455 ds_put_format(ds, "%02x", ((const uint8_t *) a)[i]);
1456 }
1457 ds_put_char(ds, ')');
36956a7d 1458 }
e6cc0bab
AZ		 1459 if (!has_ethtype_key) {
1460 ma = nl_attr_find__(mask, mask_len, OVS_KEY_ATTR_ETHERTYPE);
1461 if (ma) {
1462 ds_put_format(ds, ",eth_type(0/0x%04"PRIx16")",
1463 ntohs(nl_attr_get_be16(ma)));
1464 }
1465 }
36956a7d
BP		 1466 } else {
1467 ds_put_cstr(ds, "<empty>");
1468 }
14608a15 1469}
064af421 1470
e6cc0bab
AZ		 1471/* Appends to 'ds' a string representation of the 'key_len' bytes of
1472 * OVS_KEY_ATTR_* attributes in 'key'. */
1473void
1474odp_flow_key_format(const struct nlattr *key,
1475 size_t key_len, struct ds *ds)
1476{
0a37839c 1477 odp_flow_format(key, key_len, NULL, 0, NULL, ds, true);
e6cc0bab
AZ		 1478}
1479
dc8c5408
AZ		 1480static void
1481put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
1482 const uint8_t *nd_tll, struct ofpbuf *key)
1483{
1484 if (nd_sll) {
1485 memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
1486 }
1487
1488 if (nd_tll) {
1489 memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
1490 }
1491
1492 nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
1493}
1494
3bffc610 1495static int
dc8c5408
AZ		 1496put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
1497 const uint8_t *nd_tll, struct ofpbuf *key)
3bffc610 1498{
df2c07f4 1499 struct ovs_key_nd nd_key;
3bffc610
BP		 1500
1501 memset(&nd_key, 0, sizeof nd_key);
dc8c5408 1502
3bffc610
BP		 1503 if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
1504 return -EINVAL;
1505 }
dc8c5408
AZ		 1506
1507 put_nd(&nd_key, nd_sll, nd_tll, key);
1508 return n;
1509}
1510
1511static int
1512put_nd_mask(int n, const char *nd_target_s,
1513 const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
1514{
1515 struct ovs_key_nd nd_mask;
1516
1517 memset(&nd_mask, 0xff, sizeof nd_mask);
1518
1519 if (strlen(nd_target_s) != 0 &&
1520 inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
1521 return -EINVAL;
3bffc610 1522 }
dc8c5408
AZ		 1523
1524 put_nd(&nd_mask, nd_sll, nd_tll, mask);
3bffc610
BP		 1525 return n;
1526}
1527
7257b535
BP		 1528static bool
1529ovs_frag_type_from_string(const char *s, enum ovs_frag_type *type)
1530{
1531 if (!strcasecmp(s, "no")) {
1532 *type = OVS_FRAG_TYPE_NONE;
1533 } else if (!strcasecmp(s, "first")) {
1534 *type = OVS_FRAG_TYPE_FIRST;
1535 } else if (!strcasecmp(s, "later")) {
1536 *type = OVS_FRAG_TYPE_LATER;
1537 } else {
1538 return false;
1539 }
1540 return true;
1541}
1542
b02475c5
SH		 1543static ovs_be32
1544mpls_lse_from_components(int mpls_label, int mpls_tc, int mpls_ttl, int mpls_bos)
1545{
1546 return (htonl((mpls_label << MPLS_LABEL_SHIFT) |
1547 (mpls_tc << MPLS_TC_SHIFT) |
1548 (mpls_ttl << MPLS_TTL_SHIFT) |
1549 (mpls_bos << MPLS_BOS_SHIFT)));
1550}
1551
3bffc610 1552static int
e6cc0bab
AZ		 1553parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
1554 struct ofpbuf *key, struct ofpbuf *mask)
3bffc610
BP		 1555{
1556 /* Many of the sscanf calls in this function use oversized destination
1557 * fields because some sscanf() implementations truncate the range of %i
1558 * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
1559 * value of 0x7fff. The other alternatives are to allow only a single
1560 * radix (e.g. decimal or hexadecimal) or to write more sophisticated
1561 * parsers.
1562 *
1563 * The tun_id parser has to use an alternative approach because there is no
1564 * type larger than 64 bits. */
1565
abff858b
PS		 1566 {
1567 unsigned long long int priority;
e6cc0bab 1568 unsigned long long int priority_mask;
abff858b
PS		 1569 int n = -1;
1570
e6cc0bab
AZ		 1571 if (mask && sscanf(s, "skb_priority(%lli/%lli)%n", &priority,
1572 &priority_mask, &n) > 0 && n > 0) {
1573 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
1574 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, priority_mask);
1575 return n;
1576 } else if (sscanf(s, "skb_priority(%lli)%n",
1577 &priority, &n) > 0 && n > 0) {
abff858b 1578 nl_msg_put_u32(key, OVS_KEY_ATTR_PRIORITY, priority);
e6cc0bab
AZ		 1579 if (mask) {
1580 nl_msg_put_u32(mask, OVS_KEY_ATTR_PRIORITY, UINT32_MAX);
1581 }
abff858b
PS		 1582 return n;
1583 }
1584 }
1585
72e8bf28
AA		 1586 {
1587 unsigned long long int mark;
e6cc0bab 1588 unsigned long long int mark_mask;
72e8bf28
AA		 1589 int n = -1;
1590
e6cc0bab
AZ		 1591 if (mask && sscanf(s, "skb_mark(%lli/%lli)%n", &mark,
1592 &mark_mask, &n) > 0 && n > 0) {
1593 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
1594 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, mark_mask);
1595 return n;
1596 } else if (sscanf(s, "skb_mark(%lli)%n", &mark, &n) > 0 && n > 0) {
72e8bf28 1597 nl_msg_put_u32(key, OVS_KEY_ATTR_SKB_MARK, mark);
e6cc0bab
AZ		 1598 if (mask) {
1599 nl_msg_put_u32(mask, OVS_KEY_ATTR_SKB_MARK, UINT32_MAX);
1600 }
72e8bf28
AA		 1601 return n;
1602 }
1603 }
1604
35651d6a
JG		 1605 {
1606 char tun_id_s[32];
e6cc0bab
AZ		 1607 int tos, tos_mask, ttl, ttl_mask;
1608 struct flow_tnl tun_key, tun_key_mask;
1609 unsigned long long tun_id_mask;
35651d6a
JG		 1610 int n = -1;
1611
e6cc0bab
AZ		 1612 if (mask && sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF]/%llx,"
1613 "src="IP_SCAN_FMT"/"IP_SCAN_FMT",dst="IP_SCAN_FMT
1614 "/"IP_SCAN_FMT",tos=%i/%i,ttl=%i/%i,flags%n",
1615 tun_id_s, &tun_id_mask,
1616 IP_SCAN_ARGS(&tun_key.ip_src),
1617 IP_SCAN_ARGS(&tun_key_mask.ip_src),
1618 IP_SCAN_ARGS(&tun_key.ip_dst),
1619 IP_SCAN_ARGS(&tun_key_mask.ip_dst),
1620 &tos, &tos_mask, &ttl, &ttl_mask,
1621 &n) > 0 && n > 0) {
1622 int res;
1623 uint32_t flags;
1624
1625 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
1626 tun_key_mask.tun_id = htonll(tun_id_mask);
1627 tun_key.ip_tos = tos;
1628 tun_key_mask.ip_tos = tos_mask;
1629 tun_key.ip_ttl = ttl;
1630 tun_key_mask.ip_ttl = ttl_mask;
1631 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
1632 tun_key.flags = flags;
1633 tun_key_mask.flags = UINT16_MAX;
1634
1635 if (res < 0) {
1636 return res;
1637 }
1638 n += res;
1639 if (s[n] != ')') {
1640 return -EINVAL;
1641 }
1642 n++;
1643 tun_key_to_attr(key, &tun_key);
1644 if (mask) {
1645 tun_key_to_attr(mask, &tun_key_mask);
1646 }
1647 return n;
1648 } else if (sscanf(s, "tunnel(tun_id=%31[x0123456789abcdefABCDEF],"
29c7a2b2
PS		 1649 "src="IP_SCAN_FMT",dst="IP_SCAN_FMT
1650 ",tos=%i,ttl=%i,flags%n", tun_id_s,
9b405f1a
PS		 1651 IP_SCAN_ARGS(&tun_key.ip_src),
1652 IP_SCAN_ARGS(&tun_key.ip_dst), &tos, &ttl,
35651d6a 1653 &n) > 0 && n > 0) {
29c7a2b2 1654 int res;
9b405f1a 1655 uint32_t flags;
29c7a2b2 1656
35651d6a 1657 tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
9b405f1a
PS		 1658 tun_key.ip_tos = tos;
1659 tun_key.ip_ttl = ttl;
1660 res = parse_flags(&s[n], flow_tun_flag_to_string, &flags);
e6cc0bab 1661 tun_key.flags = flags;
29c7a2b2 1662
29c7a2b2
PS		 1663 if (res < 0) {
1664 return res;
1665 }
1666 n += res;
1667 if (s[n] != ')') {
1668 return -EINVAL;
1669 }
1670 n++;
9b405f1a 1671 tun_key_to_attr(key, &tun_key);
e6cc0bab
AZ		 1672
1673 if (mask) {
1674 memset(&tun_key, 0xff, sizeof tun_key);
1675 tun_key_to_attr(mask, &tun_key);
1676 }
35651d6a
JG		 1677 return n;
1678 }
1679 }
1680
3bffc610
BP		 1681 {
1682 unsigned long long int in_port;
e6cc0bab 1683 unsigned long long int in_port_mask;
3bffc610
BP		 1684 int n = -1;
1685
e6cc0bab
AZ		 1686 if (mask && sscanf(s, "in_port(%lli/%lli)%n", &in_port,
1687 &in_port_mask, &n) > 0 && n > 0) {
1688 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
1689 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, in_port_mask);
1690 return n;
1691 } else if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
df2c07f4 1692 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
e6cc0bab
AZ		 1693 if (mask) {
1694 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1695 }
3bffc610
BP		 1696 return n;
1697 }
1698 }
1699
e6cc0bab 1700
b2a60db8
BP		 1701 if (port_names && !strncmp(s, "in_port(", 8)) {
1702 const char *name;
44bac24b 1703 const struct simap_node *node;
b2a60db8
BP		 1704 int name_len;
1705
1706 name = s + 8;
c46c613a 1707 name_len = strcspn(name, ")");
44bac24b 1708 node = simap_find_len(port_names, name, name_len);
b2a60db8 1709 if (node) {
44bac24b 1710 nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, node->data);
e6cc0bab
AZ		 1711
1712 if (mask) {
1713 nl_msg_put_u32(mask, OVS_KEY_ATTR_IN_PORT, UINT32_MAX);
1714 }
b2a60db8
BP		 1715 return 8 + name_len + 1;
1716 }
1717 }
1718
3bffc610 1719 {
df2c07f4 1720 struct ovs_key_ethernet eth_key;
e6cc0bab 1721 struct ovs_key_ethernet eth_key_mask;
3bffc610
BP		 1722 int n = -1;
1723
e6cc0bab
AZ		 1724 if (mask && sscanf(s,
1725 "eth(src="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
1726 "dst="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
1727 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1728 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_src),
1729 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst),
1730 ETH_ADDR_SCAN_ARGS(eth_key_mask.eth_dst), &n) > 0 && n > 0) {
1731
1732 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
1733 &eth_key, sizeof eth_key);
1734 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1735 &eth_key_mask, sizeof eth_key_mask);
1736 return n;
1737 } else if (sscanf(s,
3bffc610
BP		 1738 "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
1739 ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
1740 ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
df2c07f4 1741 nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
3bffc610 1742 &eth_key, sizeof eth_key);
e6cc0bab
AZ		 1743
1744 if (mask) {
1745 memset(&eth_key, 0xff, sizeof eth_key);
1746 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ETHERNET,
1747 &eth_key, sizeof eth_key);
1748 }
3bffc610
BP		 1749 return n;
1750 }
1751 }
1752
1753 {
e6cc0bab
AZ		 1754 uint16_t vid, vid_mask;
1755 int pcp, pcp_mask;
1756 int cfi, cfi_mask;
3bffc610
BP		 1757 int n = -1;
1758
e6cc0bab
AZ		 1759 if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i)%n",
1760 &vid, &vid_mask, &pcp, &pcp_mask, &n) > 0 && n > 0)) {
1761 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1762 htons((vid << VLAN_VID_SHIFT) |
1763 (pcp << VLAN_PCP_SHIFT) |
1764 VLAN_CFI));
1765 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1766 htons((vid_mask << VLAN_VID_SHIFT) |
1767 (pcp_mask << VLAN_PCP_SHIFT) |
1768 (1 << VLAN_CFI_SHIFT)));
1769 return n;
1770 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n",
1771 &vid, &pcp, &n) > 0 && n > 0)) {
fea393b1
BP		 1772 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1773 htons((vid << VLAN_VID_SHIFT) |
8ddc056d
BP		 1774 (pcp << VLAN_PCP_SHIFT) |
1775 VLAN_CFI));
e6cc0bab 1776 if (mask) {
b8266395 1777 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
e6cc0bab
AZ		 1778 }
1779 return n;
1780 } else if (mask && (sscanf(s, "vlan(vid=%"SCNi16"/%"SCNi16",pcp=%i/%i,cfi=%i/%i)%n",
1781 &vid, &vid_mask, &pcp, &pcp_mask, &cfi, &cfi_mask, &n) > 0 && n > 0)) {
1782 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1783 htons((vid << VLAN_VID_SHIFT) |
1784 (pcp << VLAN_PCP_SHIFT) |
1785 (cfi ? VLAN_CFI : 0)));
1786 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN,
1787 htons((vid_mask << VLAN_VID_SHIFT) |
1788 (pcp_mask << VLAN_PCP_SHIFT) |
1789 (cfi_mask << VLAN_CFI_SHIFT)));
8ddc056d
BP		 1790 return n;
1791 } else if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i,cfi=%i)%n",
e6cc0bab 1792 &vid, &pcp, &cfi, &n) > 0 && n > 0)) {
8ddc056d
BP		 1793 nl_msg_put_be16(key, OVS_KEY_ATTR_VLAN,
1794 htons((vid << VLAN_VID_SHIFT) |
1795 (pcp << VLAN_PCP_SHIFT) |
1796 (cfi ? VLAN_CFI : 0)));
e6cc0bab 1797 if (mask) {
b8266395 1798 nl_msg_put_be16(mask, OVS_KEY_ATTR_VLAN, OVS_BE16_MAX);
e6cc0bab 1799 }
3bffc610
BP		 1800 return n;
1801 }
1802 }
1803
1804 {
fac2e516 1805 int eth_type;
e6cc0bab 1806 int eth_type_mask;
3bffc610
BP		 1807 int n = -1;
1808
e6cc0bab
AZ		 1809 if (mask && sscanf(s, "eth_type(%i/%i)%n",
1810 &eth_type, &eth_type_mask, &n) > 0 && n > 0) {
1811 if (eth_type != 0) {
1812 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
1813 }
1814 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type_mask));
1815 return n;
1816 } else if (sscanf(s, "eth_type(%i)%n", &eth_type, &n) > 0 && n > 0) {
df2c07f4 1817 nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
e6cc0bab 1818 if (mask) {
b8266395 1819 nl_msg_put_be16(mask, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
e6cc0bab 1820 }
3bffc610
BP		 1821 return n;
1822 }
1823 }
1824
b02475c5
SH		 1825 {
1826 int label, tc, ttl, bos;
e6cc0bab 1827 int label_mask, tc_mask, ttl_mask, bos_mask;
b02475c5
SH		 1828 int n = -1;
1829
e6cc0bab
AZ		 1830 if (mask && sscanf(s, "mpls(label=%"SCNi32"/%"SCNi32",tc=%i/%i,ttl=%i/%i,bos=%i/%i)%n",
1831 &label, &label_mask, &tc, &tc_mask, &ttl, &ttl_mask, &bos, &bos_mask, &n) > 0 && n > 0) {
1832 struct ovs_key_mpls *mpls, *mpls_mask;
1833
1834 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1835 sizeof *mpls);
1836 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
1837
1838 mpls_mask = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1839 sizeof *mpls_mask);
1840 mpls_mask->mpls_lse = mpls_lse_from_components(
1841 label_mask, tc_mask, ttl_mask, bos_mask);
1842 return n;
1843 } else if (sscanf(s, "mpls(label=%"SCNi32",tc=%i,ttl=%i,bos=%i)%n",
b02475c5
SH		 1844 &label, &tc, &ttl, &bos, &n) > 0 &&
1845 n > 0) {
1846 struct ovs_key_mpls *mpls;
1847
1848 mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
1849 sizeof *mpls);
20131cef 1850 mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
e6cc0bab
AZ		 1851 if (mask) {
1852 mpls = nl_msg_put_unspec_uninit(mask, OVS_KEY_ATTR_MPLS,
1853 sizeof *mpls);
b8266395 1854 mpls->mpls_lse = OVS_BE32_MAX;
e6cc0bab 1855 }
b02475c5
SH		 1856 return n;
1857 }
1858 }
1859
e6cc0bab 1860
3bffc610 1861 {
e6cc0bab
AZ		 1862 ovs_be32 ipv4_src, ipv4_src_mask;
1863 ovs_be32 ipv4_dst, ipv4_dst_mask;
1864 int ipv4_proto, ipv4_proto_mask;
1865 int ipv4_tos, ipv4_tos_mask;
1866 int ipv4_ttl, ipv4_ttl_mask;
7257b535 1867 char frag[8];
e6cc0bab 1868 int ipv4_frag_mask;
7257b535 1869 enum ovs_frag_type ipv4_frag;
3bffc610
BP		 1870 int n = -1;
1871
e6cc0bab
AZ		 1872 if (mask && sscanf(s, "ipv4(src="IP_SCAN_FMT"/"IP_SCAN_FMT","
1873 "dst="IP_SCAN_FMT"/"IP_SCAN_FMT","
1874 "proto=%i/%i,tos=%i/%i,ttl=%i/%i,"
1875 "frag=%7[a-z]/%i)%n",
1876 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_src_mask),
1877 IP_SCAN_ARGS(&ipv4_dst), IP_SCAN_ARGS(&ipv4_dst_mask),
1878 &ipv4_proto, &ipv4_proto_mask,
1879 &ipv4_tos, &ipv4_tos_mask, &ipv4_ttl, &ipv4_ttl_mask,
1880 frag, &ipv4_frag_mask, &n) > 0
1881 && n > 0
1882 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
1883 struct ovs_key_ipv4 ipv4_key;
1884 struct ovs_key_ipv4 ipv4_mask;
1885
1886 ipv4_key.ipv4_src = ipv4_src;
1887 ipv4_key.ipv4_dst = ipv4_dst;
1888 ipv4_key.ipv4_proto = ipv4_proto;
1889 ipv4_key.ipv4_tos = ipv4_tos;
1890 ipv4_key.ipv4_ttl = ipv4_ttl;
1891 ipv4_key.ipv4_frag = ipv4_frag;
1892 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
1893 &ipv4_key, sizeof ipv4_key);
1894
1895 ipv4_mask.ipv4_src = ipv4_src_mask;
1896 ipv4_mask.ipv4_dst = ipv4_dst_mask;
1897 ipv4_mask.ipv4_proto = ipv4_proto_mask;
1898 ipv4_mask.ipv4_tos = ipv4_tos_mask;
1899 ipv4_mask.ipv4_ttl = ipv4_ttl_mask;
1900 ipv4_mask.ipv4_frag = ipv4_frag_mask;
1901 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1902 &ipv4_mask, sizeof ipv4_mask);
1903 return n;
1904 } else if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
a61680c6 1905 "proto=%i,tos=%i,ttl=%i,frag=%7[a-z])%n",
7257b535 1906 IP_SCAN_ARGS(&ipv4_src), IP_SCAN_ARGS(&ipv4_dst),
a61680c6 1907 &ipv4_proto, &ipv4_tos, &ipv4_ttl, frag, &n) > 0
7257b535
BP		 1908 && n > 0
1909 && ovs_frag_type_from_string(frag, &ipv4_frag)) {
df2c07f4 1910 struct ovs_key_ipv4 ipv4_key;
3bffc610 1911
3bffc610
BP		 1912 ipv4_key.ipv4_src = ipv4_src;
1913 ipv4_key.ipv4_dst = ipv4_dst;
1914 ipv4_key.ipv4_proto = ipv4_proto;
1915 ipv4_key.ipv4_tos = ipv4_tos;
a61680c6 1916 ipv4_key.ipv4_ttl = ipv4_ttl;
7257b535 1917 ipv4_key.ipv4_frag = ipv4_frag;
df2c07f4 1918 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
3bffc610 1919 &ipv4_key, sizeof ipv4_key);
e6cc0bab
AZ		 1920
1921 if (mask) {
1922 memset(&ipv4_key, 0xff, sizeof ipv4_key);
1923 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV4,
1924 &ipv4_key, sizeof ipv4_key);
1925 }
3bffc610
BP		 1926 return n;
1927 }
1928 }
1929
1930 {
1931 char ipv6_src_s[IPV6_SCAN_LEN + 1];
e6cc0bab 1932 char ipv6_src_mask_s[IPV6_SCAN_LEN + 1];
3bffc610 1933 char ipv6_dst_s[IPV6_SCAN_LEN + 1];
e6cc0bab
AZ		 1934 char ipv6_dst_mask_s[IPV6_SCAN_LEN + 1];
1935 int ipv6_label, ipv6_label_mask;
1936 int ipv6_proto, ipv6_proto_mask;
1937 int ipv6_tclass, ipv6_tclass_mask;
1938 int ipv6_hlimit, ipv6_hlimit_mask;
7257b535
BP		 1939 char frag[8];
1940 enum ovs_frag_type ipv6_frag;
e6cc0bab 1941 int ipv6_frag_mask;
3bffc610
BP		 1942 int n = -1;
1943
e6cc0bab
AZ		 1944 if (mask && sscanf(s, "ipv6(src="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT",dst="
1945 IPV6_SCAN_FMT"/"IPV6_SCAN_FMT","
1946 "label=%i/%i,proto=%i/%i,tclass=%i/%i,"
1947 "hlimit=%i/%i,frag=%7[a-z]/%i)%n",
1948 ipv6_src_s, ipv6_src_mask_s, ipv6_dst_s, ipv6_dst_mask_s,
1949 &ipv6_label, &ipv6_label_mask, &ipv6_proto,
1950 &ipv6_proto_mask, &ipv6_tclass, &ipv6_tclass_mask,
1951 &ipv6_hlimit, &ipv6_hlimit_mask, frag,
1952 &ipv6_frag_mask, &n) > 0
1953 && n > 0
1954 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
1955 struct ovs_key_ipv6 ipv6_key;
1956 struct ovs_key_ipv6 ipv6_mask;
1957
1958 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1959 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1 ||
1960 inet_pton(AF_INET6, ipv6_src_mask_s, &ipv6_mask.ipv6_src) != 1 ||
1961 inet_pton(AF_INET6, ipv6_dst_mask_s, &ipv6_mask.ipv6_dst) != 1) {
1962 return -EINVAL;
1963 }
1964
1965 ipv6_key.ipv6_label = htonl(ipv6_label);
1966 ipv6_key.ipv6_proto = ipv6_proto;
1967 ipv6_key.ipv6_tclass = ipv6_tclass;
1968 ipv6_key.ipv6_hlimit = ipv6_hlimit;
1969 ipv6_key.ipv6_frag = ipv6_frag;
1970 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
1971 &ipv6_key, sizeof ipv6_key);
1972
1973 ipv6_mask.ipv6_label = htonl(ipv6_label_mask);
1974 ipv6_mask.ipv6_proto = ipv6_proto_mask;
1975 ipv6_mask.ipv6_tclass = ipv6_tclass_mask;
1976 ipv6_mask.ipv6_hlimit = ipv6_hlimit_mask;
1977 ipv6_mask.ipv6_frag = ipv6_frag_mask;
1978 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
1979 &ipv6_mask, sizeof ipv6_mask);
1980 return n;
1981 } else if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
60258dcb 1982 "label=%i,proto=%i,tclass=%i,hlimit=%i,frag=%7[a-z])%n",
fa8223b7 1983 ipv6_src_s, ipv6_dst_s, &ipv6_label,
60258dcb 1984 &ipv6_proto, &ipv6_tclass, &ipv6_hlimit, frag, &n) > 0
7257b535
BP		 1985 && n > 0
1986 && ovs_frag_type_from_string(frag, &ipv6_frag)) {
df2c07f4 1987 struct ovs_key_ipv6 ipv6_key;
3bffc610 1988
3bffc610
BP		 1989 if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
1990 inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
1991 return -EINVAL;
1992 }
fa8223b7 1993 ipv6_key.ipv6_label = htonl(ipv6_label);
3bffc610 1994 ipv6_key.ipv6_proto = ipv6_proto;
60258dcb 1995 ipv6_key.ipv6_tclass = ipv6_tclass;
a61680c6 1996 ipv6_key.ipv6_hlimit = ipv6_hlimit;
7257b535 1997 ipv6_key.ipv6_frag = ipv6_frag;
df2c07f4 1998 nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
3bffc610 1999 &ipv6_key, sizeof ipv6_key);
e6cc0bab
AZ		 2000
2001 if (mask) {
2002 memset(&ipv6_key, 0xff, sizeof ipv6_key);
2003 nl_msg_put_unspec(mask, OVS_KEY_ATTR_IPV6,
2004 &ipv6_key, sizeof ipv6_key);
2005 }
3bffc610
BP		 2006 return n;
2007 }
2008 }
2009
2010 {
2011 int tcp_src;
2012 int tcp_dst;
e6cc0bab
AZ		 2013 int tcp_src_mask;
2014 int tcp_dst_mask;
3bffc610
BP		 2015 int n = -1;
2016
e6cc0bab
AZ		 2017 if (mask && sscanf(s, "tcp(src=%i/%i,dst=%i/%i)%n",
2018 &tcp_src, &tcp_src_mask, &tcp_dst, &tcp_dst_mask, &n) > 0
3bffc610 2019 && n > 0) {
df2c07f4 2020 struct ovs_key_tcp tcp_key;
e6cc0bab 2021 struct ovs_key_tcp tcp_mask;
3bffc610
BP		 2022
2023 tcp_key.tcp_src = htons(tcp_src);
2024 tcp_key.tcp_dst = htons(tcp_dst);
df2c07f4 2025 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
e6cc0bab
AZ		 2026
2027 tcp_mask.tcp_src = htons(tcp_src_mask);
2028 tcp_mask.tcp_dst = htons(tcp_dst_mask);
2029 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2030 &tcp_mask, sizeof tcp_mask);
2031 return n;
2032 } else if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
2033 && n > 0) {
2034 struct ovs_key_tcp tcp_key;
2035
2036 tcp_key.tcp_src = htons(tcp_src);
2037 tcp_key.tcp_dst = htons(tcp_dst);
2038 nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
2039
2040 if (mask) {
2041 memset(&tcp_key, 0xff, sizeof tcp_key);
2042 nl_msg_put_unspec(mask, OVS_KEY_ATTR_TCP,
2043 &tcp_key, sizeof tcp_key);
2044 }
3bffc610
BP		 2045 return n;
2046 }
2047 }
2048
2049 {
2050 int udp_src;
2051 int udp_dst;
e6cc0bab
AZ		 2052 int udp_src_mask;
2053 int udp_dst_mask;
3bffc610
BP		 2054 int n = -1;
2055
e6cc0bab
AZ		 2056 if (mask && sscanf(s, "udp(src=%i/%i,dst=%i/%i)%n",
2057 &udp_src, &udp_src_mask,
2058 &udp_dst, &udp_dst_mask, &n) > 0 && n > 0) {
2059 struct ovs_key_udp udp_key;
2060 struct ovs_key_udp udp_mask;
2061
2062 udp_key.udp_src = htons(udp_src);
2063 udp_key.udp_dst = htons(udp_dst);
2064 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2065
2066 udp_mask.udp_src = htons(udp_src_mask);
2067 udp_mask.udp_dst = htons(udp_dst_mask);
2068 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP,
2069 &udp_mask, sizeof udp_mask);
2070 return n;
2071 }
3bffc610
BP		 2072 if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
2073 && n > 0) {
df2c07f4 2074 struct ovs_key_udp udp_key;
3bffc610
BP		 2075
2076 udp_key.udp_src = htons(udp_src);
2077 udp_key.udp_dst = htons(udp_dst);
df2c07f4 2078 nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
e6cc0bab
AZ		 2079
2080 if (mask) {
2081 memset(&udp_key, 0xff, sizeof udp_key);
2082 nl_msg_put_unspec(mask, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
2083 }
3bffc610
BP		 2084 return n;
2085 }
2086 }
2087
c6bcb685
JS		 2088 {
2089 int sctp_src;
2090 int sctp_dst;
2091 int sctp_src_mask;
2092 int sctp_dst_mask;
2093 int n = -1;
2094
2095 if (mask && sscanf(s, "sctp(src=%i/%i,dst=%i/%i)%n",
2096 &sctp_src, &sctp_src_mask,
2097 &sctp_dst, &sctp_dst_mask, &n) > 0 && n > 0) {
2098 struct ovs_key_sctp sctp_key;
2099 struct ovs_key_sctp sctp_mask;
2100
2101 sctp_key.sctp_src = htons(sctp_src);
2102 sctp_key.sctp_dst = htons(sctp_dst);
2103 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2104
2105 sctp_mask.sctp_src = htons(sctp_src_mask);
2106 sctp_mask.sctp_dst = htons(sctp_dst_mask);
2107 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP,
2108 &sctp_mask, sizeof sctp_mask);
2109 return n;
2110 }
2111 if (sscanf(s, "sctp(src=%i,dst=%i)%n", &sctp_src, &sctp_dst, &n) > 0
2112 && n > 0) {
2113 struct ovs_key_sctp sctp_key;
2114
2115 sctp_key.sctp_src = htons(sctp_src);
2116 sctp_key.sctp_dst = htons(sctp_dst);
2117 nl_msg_put_unspec(key, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2118
2119 if (mask) {
2120 memset(&sctp_key, 0xff, sizeof sctp_key);
2121 nl_msg_put_unspec(mask, OVS_KEY_ATTR_SCTP, &sctp_key, sizeof sctp_key);
2122 }
2123 return n;
2124 }
2125 }
2126
3bffc610
BP		 2127 {
2128 int icmp_type;
2129 int icmp_code;
e6cc0bab
AZ		 2130 int icmp_type_mask;
2131 int icmp_code_mask;
3bffc610
BP		 2132 int n = -1;
2133
e6cc0bab
AZ		 2134 if (mask && sscanf(s, "icmp(type=%i/%i,code=%i/%i)%n",
2135 &icmp_type, &icmp_type_mask,
2136 &icmp_code, &icmp_code_mask, &n) > 0 && n > 0) {
2137 struct ovs_key_icmp icmp_key;
2138 struct ovs_key_icmp icmp_mask;
2139
2140 icmp_key.icmp_type = icmp_type;
2141 icmp_key.icmp_code = icmp_code;
2142 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
2143 &icmp_key, sizeof icmp_key);
2144
2145 icmp_mask.icmp_type = icmp_type_mask;
2146 icmp_mask.icmp_code = icmp_code_mask;
2147 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP,
2148 &icmp_mask, sizeof icmp_mask);
2149 return n;
2150 } else if (sscanf(s, "icmp(type=%i,code=%i)%n",
3bffc610
BP		 2151 &icmp_type, &icmp_code, &n) > 0
2152 && n > 0) {
df2c07f4 2153 struct ovs_key_icmp icmp_key;
3bffc610
BP		 2154
2155 icmp_key.icmp_type = icmp_type;
2156 icmp_key.icmp_code = icmp_code;
df2c07f4 2157 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
3bffc610 2158 &icmp_key, sizeof icmp_key);
e6cc0bab
AZ		 2159 if (mask) {
2160 memset(&icmp_key, 0xff, sizeof icmp_key);
2161 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMP, &icmp_key,
2162 sizeof icmp_key);
2163 }
3bffc610
BP		 2164 return n;
2165 }
2166 }
2167
2168 {
df2c07f4 2169 struct ovs_key_icmpv6 icmpv6_key;
e6cc0bab
AZ		 2170 struct ovs_key_icmpv6 icmpv6_mask;
2171 int icmpv6_type_mask;
2172 int icmpv6_code_mask;
3bffc610
BP		 2173 int n = -1;
2174
e6cc0bab
AZ		 2175 if (mask && sscanf(s, "icmpv6(type=%"SCNi8"/%i,code=%"SCNi8"/%i)%n",
2176 &icmpv6_key.icmpv6_type, &icmpv6_type_mask,
2177 &icmpv6_key.icmpv6_code, &icmpv6_code_mask, &n) > 0
2178 && n > 0) {
2179 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
2180 &icmpv6_key, sizeof icmpv6_key);
2181
2182 icmpv6_mask.icmpv6_type = icmpv6_type_mask;
2183 icmpv6_mask.icmpv6_code = icmpv6_code_mask;
2184 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_mask,
2185 sizeof icmpv6_mask);
2186 return n;
2187 } else if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
3bffc610
BP		 2188 &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
2189 && n > 0) {
df2c07f4 2190 nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
3bffc610 2191 &icmpv6_key, sizeof icmpv6_key);
e6cc0bab
AZ		 2192
2193 if (mask) {
2194 memset(&icmpv6_key, 0xff, sizeof icmpv6_key);
2195 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ICMPV6, &icmpv6_key,
2196 sizeof icmpv6_key);
2197 }
3bffc610
BP		 2198 return n;
2199 }
2200 }
2201
2202 {
e6cc0bab
AZ		 2203 ovs_be32 arp_sip, arp_sip_mask;
2204 ovs_be32 arp_tip, arp_tip_mask;
2205 int arp_op, arp_op_mask;
3bffc610 2206 uint8_t arp_sha[ETH_ADDR_LEN];
e6cc0bab 2207 uint8_t arp_sha_mask[ETH_ADDR_LEN];
3bffc610 2208 uint8_t arp_tha[ETH_ADDR_LEN];
e6cc0bab 2209 uint8_t arp_tha_mask[ETH_ADDR_LEN];
3bffc610
BP		 2210 int n = -1;
2211
e6cc0bab
AZ		 2212 if (mask && sscanf(s, "arp(sip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2213 "tip="IP_SCAN_FMT"/"IP_SCAN_FMT","
2214 "op=%i/%i,sha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2215 "tha="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2216 IP_SCAN_ARGS(&arp_sip), IP_SCAN_ARGS(&arp_sip_mask),
2217 IP_SCAN_ARGS(&arp_tip), IP_SCAN_ARGS(&arp_tip_mask),
2218 &arp_op, &arp_op_mask,
2219 ETH_ADDR_SCAN_ARGS(arp_sha),
2220 ETH_ADDR_SCAN_ARGS(arp_sha_mask),
2221 ETH_ADDR_SCAN_ARGS(arp_tha),
2222 ETH_ADDR_SCAN_ARGS(arp_tha_mask), &n) > 0 && n > 0) {
2223 struct ovs_key_arp arp_key;
2224 struct ovs_key_arp arp_mask;
2225
2226 memset(&arp_key, 0, sizeof arp_key);
2227 arp_key.arp_sip = arp_sip;
2228 arp_key.arp_tip = arp_tip;
2229 arp_key.arp_op = htons(arp_op);
2230 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2231 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
2232 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
2233
2234 arp_mask.arp_sip = arp_sip_mask;
2235 arp_mask.arp_tip = arp_tip_mask;
2236 arp_mask.arp_op = htons(arp_op_mask);
2237 memcpy(arp_mask.arp_sha, arp_sha_mask, ETH_ADDR_LEN);
2238 memcpy(arp_mask.arp_tha, arp_tha_mask, ETH_ADDR_LEN);
2239 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2240 &arp_mask, sizeof arp_mask);
2241 return n;
2242 } else if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
3bffc610
BP		 2243 "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
2244 IP_SCAN_ARGS(&arp_sip),
2245 IP_SCAN_ARGS(&arp_tip),
2246 &arp_op,
2247 ETH_ADDR_SCAN_ARGS(arp_sha),
2248 ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
df2c07f4 2249 struct ovs_key_arp arp_key;
3bffc610
BP		 2250
2251 memset(&arp_key, 0, sizeof arp_key);
2252 arp_key.arp_sip = arp_sip;
2253 arp_key.arp_tip = arp_tip;
2254 arp_key.arp_op = htons(arp_op);
2255 memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
2256 memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
df2c07f4 2257 nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
e6cc0bab
AZ		 2258
2259 if (mask) {
2260 memset(&arp_key, 0xff, sizeof arp_key);
2261 nl_msg_put_unspec(mask, OVS_KEY_ATTR_ARP,
2262 &arp_key, sizeof arp_key);
2263 }
3bffc610
BP		 2264 return n;
2265 }
2266 }
2267
2268 {
2269 char nd_target_s[IPV6_SCAN_LEN + 1];
e6cc0bab 2270 char nd_target_mask_s[IPV6_SCAN_LEN + 1];
3bffc610 2271 uint8_t nd_sll[ETH_ADDR_LEN];
e6cc0bab 2272 uint8_t nd_sll_mask[ETH_ADDR_LEN];
3bffc610 2273 uint8_t nd_tll[ETH_ADDR_LEN];
e6cc0bab 2274 uint8_t nd_tll_mask[ETH_ADDR_LEN];
3bffc610
BP		 2275 int n = -1;
2276
dc8c5408
AZ		 2277 nd_target_mask_s[0] = 0;
2278 memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
2279 memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
e6cc0bab
AZ		 2280
2281 if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
2282 nd_target_s, nd_target_mask_s, &n) > 0 && n > 0) {
2283 put_nd_key(n, nd_target_s, NULL, NULL, key);
dc8c5408 2284 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
e6cc0bab 2285 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
3bffc610 2286 nd_target_s, &n) > 0 && n > 0) {
e6cc0bab
AZ		 2287 put_nd_key(n, nd_target_s, NULL, NULL, key);
2288 if (mask) {
dc8c5408 2289 put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
e6cc0bab
AZ		 2290 }
2291 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2292 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2293 nd_target_s, nd_target_mask_s,
2294 ETH_ADDR_SCAN_ARGS(nd_sll),
2295 ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n) > 0 && n > 0) {
2296 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
dc8c5408 2297 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
e6cc0bab 2298 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
3bffc610
BP		 2299 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
2300 && n > 0) {
e6cc0bab
AZ		 2301 put_nd_key(n, nd_target_s, nd_sll, NULL, key);
2302 if (mask) {
dc8c5408 2303 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
e6cc0bab
AZ		 2304 }
2305 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2306 ",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2307 nd_target_s, nd_target_mask_s,
2308 ETH_ADDR_SCAN_ARGS(nd_tll),
2309 ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n) > 0 && n > 0) {
2310 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
dc8c5408 2311 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
e6cc0bab 2312 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
3bffc610
BP		 2313 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2314 && n > 0) {
e6cc0bab
AZ		 2315 put_nd_key(n, nd_target_s, NULL, nd_tll, key);
2316 if (mask) {
dc8c5408 2317 put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
e6cc0bab
AZ		 2318 }
2319 } else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
2320 ",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
2321 "tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
2322 nd_target_s, nd_target_mask_s,
2323 ETH_ADDR_SCAN_ARGS(nd_sll), ETH_ADDR_SCAN_ARGS(nd_sll_mask),
2324 ETH_ADDR_SCAN_ARGS(nd_tll), ETH_ADDR_SCAN_ARGS(nd_tll_mask),
2325 &n) > 0
2326 && n > 0) {
2327 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
dc8c5408 2328 put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
e6cc0bab 2329 } else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
3bffc610
BP		 2330 "tll="ETH_ADDR_SCAN_FMT")%n",
2331 nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
2332 ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
2333 && n > 0) {
e6cc0bab
AZ		 2334 put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
2335 if (mask) {
dc8c5408
AZ		 2336 put_nd_mask(n, nd_target_mask_s,
2337 nd_sll_mask, nd_tll_mask, mask);
e6cc0bab 2338 }
3bffc610 2339 }
e6cc0bab
AZ		 2340
2341 if (n != -1)
2342 return n;
2343
3bffc610
BP		 2344 }
2345
fea393b1
BP		 2346 if (!strncmp(s, "encap(", 6)) {
2347 const char *start = s;
e6cc0bab 2348 size_t encap, encap_mask = 0;
fea393b1
BP		 2349
2350 encap = nl_msg_start_nested(key, OVS_KEY_ATTR_ENCAP);
e6cc0bab
AZ		 2351 if (mask) {
2352 encap_mask = nl_msg_start_nested(mask, OVS_KEY_ATTR_ENCAP);
2353 }
fea393b1
BP		 2354
2355 s += 6;
2356 for (;;) {
2357 int retval;
2358
2359 s += strspn(s, ", \t\r\n");
2360 if (!*s) {
2361 return -EINVAL;
2362 } else if (*s == ')') {
2363 break;
2364 }
2365
e6cc0bab 2366 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
fea393b1
BP		 2367 if (retval < 0) {
2368 return retval;
2369 }
2370 s += retval;
2371 }
2372 s++;
2373
2374 nl_msg_end_nested(key, encap);
e6cc0bab
AZ		 2375 if (mask) {
2376 nl_msg_end_nested(mask, encap_mask);
2377 }
fea393b1
BP		 2378
2379 return s - start;
2380 }
2381
3bffc610
BP		 2382 return -EINVAL;
2383}
2384
df2c07f4
JP		 2385/* Parses the string representation of a datapath flow key, in the
2386 * format output by odp_flow_key_format(). Returns 0 if successful,
2387 * otherwise a positive errno value. On success, the flow key is
2388 * appended to 'key' as a series of Netlink attributes. On failure, no
2389 * data is appended to 'key'. Either way, 'key''s data might be
2390 * reallocated.
3bffc610 2391 *
44bac24b
BP		 2392 * If 'port_names' is nonnull, it points to an simap that maps from a port name
2393 * to a port number. (Port names may be used instead of port numbers in
2394 * in_port.)
b2a60db8 2395 *
3bffc610
BP		 2396 * On success, the attributes appended to 'key' are individually syntactically
2397 * valid, but they may not be valid as a sequence. 'key' might, for example,
34118cae 2398 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
3bffc610 2399int
e6cc0bab
AZ		 2400odp_flow_from_string(const char *s, const struct simap *port_names,
2401 struct ofpbuf *key, struct ofpbuf *mask)
3bffc610
BP		 2402{
2403 const size_t old_size = key->size;
2404 for (;;) {
2405 int retval;
2406
7202cbe5 2407 s += strspn(s, delimiters);
3bffc610
BP		 2408 if (!*s) {
2409 return 0;
2410 }
2411
e6cc0bab 2412 retval = parse_odp_key_mask_attr(s, port_names, key, mask);
3bffc610
BP		 2413 if (retval < 0) {
2414 key->size = old_size;
2415 return -retval;
2416 }
2417 s += retval;
2418 }
2419
2420 return 0;
2421}
2422
7257b535 2423static uint8_t
c4f2731d 2424ovs_to_odp_frag(uint8_t nw_frag)
7257b535 2425{
c4f2731d
PS		 2426 return (nw_frag == 0 ? OVS_FRAG_TYPE_NONE
2427 : nw_frag == FLOW_NW_FRAG_ANY ? OVS_FRAG_TYPE_FIRST
2428 : OVS_FRAG_TYPE_LATER);
7257b535
BP		 2429}
2430
431495b1
AZ		 2431static uint8_t
2432ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
2433{
2434 uint8_t frag_mask = ~(OVS_FRAG_TYPE_FIRST | OVS_FRAG_TYPE_LATER);
2435
2436 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_ANY) ? OVS_FRAG_TYPE_FIRST : 0;
2437 frag_mask |= (nw_frag_mask & FLOW_NW_FRAG_LATER) ? OVS_FRAG_TYPE_LATER : 0;
2438
2439 return frag_mask;
2440}
2441
661cbcd5
JP		 2442static void
2443odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *data,
2444 const struct flow *flow, odp_port_t odp_in_port)
14608a15 2445{
661cbcd5 2446 bool is_mask;
df2c07f4 2447 struct ovs_key_ethernet *eth_key;
fea393b1 2448 size_t encap;
36956a7d 2449
661cbcd5
JP		 2450 /* We assume that if 'data' and 'flow' are not the same, we should
2451 * treat 'data' as a mask. */
2452 is_mask = (data != flow);
2453
54bb0348 2454 nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
abff858b 2455
01fcdfc6 2456 if (flow->tunnel.ip_dst || is_mask) {
661cbcd5 2457 tun_key_to_attr(buf, &data->tunnel);
36956a7d
BP		 2458 }
2459
1362e248 2460 nl_msg_put_u32(buf, OVS_KEY_ATTR_SKB_MARK, data->pkt_mark);
72e8bf28 2461
661cbcd5
JP		 2462 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
2463 * is not the magical value "ODPP_NONE". */
2464 if (is_mask || odp_in_port != ODPP_NONE) {
4e022ec0 2465 nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
18886b60 2466 }
36956a7d 2467
df2c07f4 2468 eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
36956a7d 2469 sizeof *eth_key);
661cbcd5
JP		 2470 memcpy(eth_key->eth_src, data->dl_src, ETH_ADDR_LEN);
2471 memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
36956a7d 2472
8ddc056d 2473 if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN)) {
bed7d6a1 2474 if (is_mask) {
b8266395 2475 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
bed7d6a1
JP		 2476 } else {
2477 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, htons(ETH_TYPE_VLAN));
2478 }
661cbcd5 2479 nl_msg_put_be16(buf, OVS_KEY_ATTR_VLAN, data->vlan_tci);
fea393b1 2480 encap = nl_msg_start_nested(buf, OVS_KEY_ATTR_ENCAP);
8ddc056d
BP		 2481 if (flow->vlan_tci == htons(0)) {
2482 goto unencap;
2483 }
fea393b1
BP		 2484 } else {
2485 encap = 0;
36956a7d
BP		 2486 }
2487
2488 if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
661cbcd5
JP		 2489 /* For backwards compatibility with kernels that don't support
2490 * wildcarding, the following convention is used to encode the
2491 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
2492 *
2493 * key mask matches
2494 * -------- -------- -------
2495 * >0x5ff 0xffff Specified Ethernet II Ethertype.
2496 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
2497 * <none> 0xffff Any non-Ethernet II frame (except valid
2498 * 802.3 SNAP packet with valid eth_type).
2499 */
2500 if (is_mask) {
b8266395 2501 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
661cbcd5 2502 }
fea393b1 2503 goto unencap;
36956a7d
BP		 2504 }
2505
661cbcd5 2506 nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, data->dl_type);
36956a7d
BP		 2507
2508 if (flow->dl_type == htons(ETH_TYPE_IP)) {
df2c07f4 2509 struct ovs_key_ipv4 *ipv4_key;
36956a7d 2510
df2c07f4 2511 ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
36956a7d 2512 sizeof *ipv4_key);
661cbcd5
JP		 2513 ipv4_key->ipv4_src = data->nw_src;
2514 ipv4_key->ipv4_dst = data->nw_dst;
2515 ipv4_key->ipv4_proto = data->nw_proto;
2516 ipv4_key->ipv4_tos = data->nw_tos;
2517 ipv4_key->ipv4_ttl = data->nw_ttl;
431495b1
AZ		 2518 ipv4_key->ipv4_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2519 : ovs_to_odp_frag(data->nw_frag);
d31f1109 2520 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
df2c07f4 2521 struct ovs_key_ipv6 *ipv6_key;
d31f1109 2522
df2c07f4 2523 ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
d31f1109 2524 sizeof *ipv6_key);
661cbcd5
JP		 2525 memcpy(ipv6_key->ipv6_src, &data->ipv6_src, sizeof ipv6_key->ipv6_src);
2526 memcpy(ipv6_key->ipv6_dst, &data->ipv6_dst, sizeof ipv6_key->ipv6_dst);
2527 ipv6_key->ipv6_label = data->ipv6_label;
2528 ipv6_key->ipv6_proto = data->nw_proto;
2529 ipv6_key->ipv6_tclass = data->nw_tos;
2530 ipv6_key->ipv6_hlimit = data->nw_ttl;
431495b1
AZ		 2531 ipv6_key->ipv6_frag = is_mask ? ovs_to_odp_frag_mask(data->nw_frag)
2532 : ovs_to_odp_frag(data->nw_frag);
8087f5ff
MM		 2533 } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
2534 flow->dl_type == htons(ETH_TYPE_RARP)) {
df2c07f4 2535 struct ovs_key_arp *arp_key;
d31f1109 2536
df2c07f4 2537 arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
d31f1109 2538 sizeof *arp_key);
535d6987 2539 memset(arp_key, 0, sizeof *arp_key);
661cbcd5
JP		 2540 arp_key->arp_sip = data->nw_src;
2541 arp_key->arp_tip = data->nw_dst;
2542 arp_key->arp_op = htons(data->nw_proto);
2543 memcpy(arp_key->arp_sha, data->arp_sha, ETH_ADDR_LEN);
2544 memcpy(arp_key->arp_tha, data->arp_tha, ETH_ADDR_LEN);
b0a17866 2545 } else if (eth_type_mpls(flow->dl_type)) {
b02475c5
SH		 2546 struct ovs_key_mpls *mpls_key;
2547
2548 mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
2549 sizeof *mpls_key);
661cbcd5 2550 mpls_key->mpls_lse = data->mpls_lse;
b02475c5
SH		 2551 }
2552
48cecbdc 2553 if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
6767a2cc 2554 if (flow->nw_proto == IPPROTO_TCP) {
df2c07f4 2555 struct ovs_key_tcp *tcp_key;
36956a7d 2556
df2c07f4 2557 tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
36956a7d 2558 sizeof *tcp_key);
661cbcd5
JP		 2559 tcp_key->tcp_src = data->tp_src;
2560 tcp_key->tcp_dst = data->tp_dst;
6767a2cc 2561 } else if (flow->nw_proto == IPPROTO_UDP) {
df2c07f4 2562 struct ovs_key_udp *udp_key;
36956a7d 2563
df2c07f4 2564 udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
36956a7d 2565 sizeof *udp_key);
661cbcd5
JP		 2566 udp_key->udp_src = data->tp_src;
2567 udp_key->udp_dst = data->tp_dst;
c6bcb685
JS		 2568 } else if (flow->nw_proto == IPPROTO_SCTP) {
2569 struct ovs_key_sctp *sctp_key;
2570
2571 sctp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_SCTP,
2572 sizeof *sctp_key);
2573 sctp_key->sctp_src = data->tp_src;
2574 sctp_key->sctp_dst = data->tp_dst;
d31f1109
JP		 2575 } else if (flow->dl_type == htons(ETH_TYPE_IP)
2576 && flow->nw_proto == IPPROTO_ICMP) {
df2c07f4 2577 struct ovs_key_icmp *icmp_key;
36956a7d 2578
df2c07f4 2579 icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
36956a7d 2580 sizeof *icmp_key);
661cbcd5
JP		 2581 icmp_key->icmp_type = ntohs(data->tp_src);
2582 icmp_key->icmp_code = ntohs(data->tp_dst);
d31f1109
JP		 2583 } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
2584 && flow->nw_proto == IPPROTO_ICMPV6) {
df2c07f4 2585 struct ovs_key_icmpv6 *icmpv6_key;
d31f1109 2586
df2c07f4 2587 icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
d31f1109 2588 sizeof *icmpv6_key);
661cbcd5
JP		 2589 icmpv6_key->icmpv6_type = ntohs(data->tp_src);
2590 icmpv6_key->icmpv6_code = ntohs(data->tp_dst);
685a51a5 2591
6f8dbd27
GY		 2592 if (flow->tp_dst == htons(0) &&
2593 (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
2594 flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) &&
2595 (!is_mask || (data->tp_src == htons(0xffff) &&
2596 data->tp_dst == htons(0xffff)))) {
2597
df2c07f4 2598 struct ovs_key_nd *nd_key;
685a51a5 2599
df2c07f4 2600 nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
685a51a5 2601 sizeof *nd_key);
661cbcd5 2602 memcpy(nd_key->nd_target, &data->nd_target,
685a51a5 2603 sizeof nd_key->nd_target);
661cbcd5
JP		 2604 memcpy(nd_key->nd_sll, data->arp_sha, ETH_ADDR_LEN);
2605 memcpy(nd_key->nd_tll, data->arp_tha, ETH_ADDR_LEN);
685a51a5 2606 }
36956a7d 2607 }
36956a7d 2608 }
fea393b1
BP		 2609
2610unencap:
2611 if (encap) {
2612 nl_msg_end_nested(buf, encap);
2613 }
36956a7d 2614}
661cbcd5
JP		 2615
2616/* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
2617 * 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
2618 * number rather than a datapath port number). Instead, if 'odp_in_port'
2619 * is anything other than ODPP_NONE, it is included in 'buf' as the input
2620 * port.
2621 *
2622 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2623 * capable of being expanded to allow for that much space. */
2624void
2625odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
2626 odp_port_t odp_in_port)
2627{
2628 odp_flow_key_from_flow__(buf, flow, flow, odp_in_port);
2629}
2630
2631/* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
2632 * 'buf'. 'flow' is used as a template to determine how to interpret
2633 * 'mask'. For example, the 'dl_type' of 'mask' describes the mask, but
2634 * it doesn't indicate whether the other fields should be interpreted as
2635 * ARP, IPv4, IPv6, etc.
2636 *
2637 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
2638 * capable of being expanded to allow for that much space. */
2639void
2640odp_flow_key_from_mask(struct ofpbuf *buf, const struct flow *mask,
2641 const struct flow *flow, uint32_t odp_in_port_mask)
2642{
2643 odp_flow_key_from_flow__(buf, mask, flow, u32_to_odp(odp_in_port_mask));
2644}
36956a7d 2645
b0f7b9b5
BP		 2646uint32_t
2647odp_flow_key_hash(const struct nlattr *key, size_t key_len)
2648{
2649 BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
db5a1019
AW		 2650 return hash_words(ALIGNED_CAST(const uint32_t *, key),
2651 key_len / sizeof(uint32_t), 0);
b0f7b9b5
BP		 2652}
2653
34118cae
BP		 2654static void
2655log_odp_key_attributes(struct vlog_rate_limit *rl, const char *title,
b0f7b9b5 2656 uint64_t attrs, int out_of_range_attr,
34118cae
BP		 2657 const struct nlattr *key, size_t key_len)
2658{
2659 struct ds s;
2660 int i;
2661
b0f7b9b5 2662 if (VLOG_DROP_DBG(rl)) {
34118cae
BP		 2663 return;
2664 }
2665
2666 ds_init(&s);
b0f7b9b5
BP		 2667 for (i = 0; i < 64; i++) {
2668 if (attrs & (UINT64_C(1) << i)) {
e6603631
BP		 2669 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2670
2671 ds_put_format(&s, " %s",
2672 ovs_key_attr_to_string(i, namebuf, sizeof namebuf));
34118cae
BP		 2673 }
2674 }
b0f7b9b5
BP		 2675 if (out_of_range_attr) {
2676 ds_put_format(&s, " %d (and possibly others)", out_of_range_attr);
2677 }
34118cae
BP		 2678
2679 ds_put_cstr(&s, ": ");
2680 odp_flow_key_format(key, key_len, &s);
2681
b0f7b9b5 2682 VLOG_DBG("%s:%s", title, ds_cstr(&s));
34118cae
BP		 2683 ds_destroy(&s);
2684}
2685
7257b535 2686static bool
9e44d715 2687odp_to_ovs_frag(uint8_t odp_frag, struct flow *flow)
7257b535 2688{
34118cae
BP		 2689 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2690
9e44d715 2691 if (odp_frag > OVS_FRAG_TYPE_LATER) {
b0f7b9b5 2692 VLOG_ERR_RL(&rl, "invalid frag %"PRIu8" in flow key", odp_frag);
7257b535
BP		 2693 return false;
2694 }
2695
7257b535 2696 if (odp_frag != OVS_FRAG_TYPE_NONE) {
eadef313 2697 flow->nw_frag |= FLOW_NW_FRAG_ANY;
7257b535 2698 if (odp_frag == OVS_FRAG_TYPE_LATER) {
eadef313 2699 flow->nw_frag |= FLOW_NW_FRAG_LATER;
7257b535
BP		 2700 }
2701 }
2702 return true;
2703}
2704
b0f7b9b5 2705static bool
fea393b1 2706parse_flow_nlattrs(const struct nlattr *key, size_t key_len,
b0f7b9b5
BP		 2707 const struct nlattr *attrs[], uint64_t *present_attrsp,
2708 int *out_of_range_attrp)
36956a7d 2709{
b0f7b9b5 2710 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
36956a7d 2711 const struct nlattr *nla;
34118cae 2712 uint64_t present_attrs;
36956a7d
BP		 2713 size_t left;
2714
2aef1214 2715 BUILD_ASSERT(OVS_KEY_ATTR_MAX < CHAR_BIT * sizeof present_attrs);
34118cae 2716 present_attrs = 0;
b0f7b9b5 2717 *out_of_range_attrp = 0;
36956a7d 2718 NL_ATTR_FOR_EACH (nla, left, key, key_len) {
34118cae
BP		 2719 uint16_t type = nl_attr_type(nla);
2720 size_t len = nl_attr_get_size(nla);
2721 int expected_len = odp_flow_key_attr_len(type);
2722
b0f7b9b5 2723 if (len != expected_len && expected_len >= 0) {
e6603631
BP		 2724 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2725
b0f7b9b5 2726 VLOG_ERR_RL(&rl, "attribute %s has length %zu but should have "
e6603631
BP		 2727 "length %d", ovs_key_attr_to_string(type, namebuf,
2728 sizeof namebuf),
b0f7b9b5
BP		 2729 len, expected_len);
2730 return false;
34118cae
BP		 2731 }
2732
2aef1214 2733 if (type > OVS_KEY_ATTR_MAX) {
b0f7b9b5
BP		 2734 *out_of_range_attrp = type;
2735 } else {
2736 if (present_attrs & (UINT64_C(1) << type)) {
e6603631
BP		 2737 char namebuf[OVS_KEY_ATTR_BUFSIZE];
2738
b0f7b9b5 2739 VLOG_ERR_RL(&rl, "duplicate %s attribute in flow key",
e6603631
BP		 2740 ovs_key_attr_to_string(type,
2741 namebuf, sizeof namebuf));
b0f7b9b5
BP		 2742 return false;
2743 }
2744
2745 present_attrs |= UINT64_C(1) << type;
2746 attrs[type] = nla;
2747 }
34118cae
BP		 2748 }
2749 if (left) {
2750 VLOG_ERR_RL(&rl, "trailing garbage in flow key");
b0f7b9b5 2751 return false;
34118cae
BP		 2752 }
2753
fea393b1 2754 *present_attrsp = present_attrs;
b0f7b9b5 2755 return true;
fea393b1
BP		 2756}
2757
b0f7b9b5
BP		 2758static enum odp_key_fitness
2759check_expectations(uint64_t present_attrs, int out_of_range_attr,
2760 uint64_t expected_attrs,
fea393b1
BP		 2761 const struct nlattr *key, size_t key_len)
2762{
2763 uint64_t missing_attrs;
2764 uint64_t extra_attrs;
2765
2766 missing_attrs = expected_attrs & ~present_attrs;
2767 if (missing_attrs) {
b0f7b9b5
BP		 2768 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2769 log_odp_key_attributes(&rl, "expected but not present",
2770 missing_attrs, 0, key, key_len);
2771 return ODP_FIT_TOO_LITTLE;
fea393b1
BP		 2772 }
2773
2774 extra_attrs = present_attrs & ~expected_attrs;
b0f7b9b5
BP		 2775 if (extra_attrs || out_of_range_attr) {
2776 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 10);
2777 log_odp_key_attributes(&rl, "present but not expected",
2778 extra_attrs, out_of_range_attr, key, key_len);
2779 return ODP_FIT_TOO_MUCH;
fea393b1
BP		 2780 }
2781
b0f7b9b5 2782 return ODP_FIT_PERFECT;
fea393b1
BP		 2783}
2784
b0f7b9b5
BP		 2785static bool
2786parse_ethertype(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2787 uint64_t present_attrs, uint64_t *expected_attrs,
4a221615 2788 struct flow *flow, const struct flow *src_flow)
fea393b1
BP		 2789{
2790 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615 2791 bool is_mask = flow != src_flow;
36956a7d 2792
fea393b1 2793 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE)) {
34118cae 2794 flow->dl_type = nl_attr_get_be16(attrs[OVS_KEY_ATTR_ETHERTYPE]);
4a221615 2795 if (!is_mask && ntohs(flow->dl_type) < ETH_TYPE_MIN) {
34118cae
BP		 2796 VLOG_ERR_RL(&rl, "invalid Ethertype %"PRIu16" in flow key",
2797 ntohs(flow->dl_type));
b0f7b9b5 2798 return false;
34118cae 2799 }
4a221615
GY		 2800 if (is_mask && ntohs(src_flow->dl_type) < ETH_TYPE_MIN &&
2801 flow->dl_type != htons(0xffff)) {
2802 return false;
2803 }
b0f7b9b5 2804 *expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE;
34118cae 2805 } else {
4a221615
GY		 2806 if (!is_mask) {
2807 flow->dl_type = htons(FLOW_DL_TYPE_NONE);
2808 } else if (ntohs(src_flow->dl_type) < ETH_TYPE_MIN) {
2809 /* See comments in odp_flow_key_from_flow__(). */
2810 VLOG_ERR_RL(&rl, "mask expected for non-Ethernet II frame");
2811 return false;
2812 }
34118cae 2813 }
b0f7b9b5
BP		 2814 return true;
2815}
2816
2817static enum odp_key_fitness
b02475c5
SH		 2818parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
2819 uint64_t present_attrs, int out_of_range_attr,
2820 uint64_t expected_attrs, struct flow *flow,
4a221615
GY		 2821 const struct nlattr *key, size_t key_len,
2822 const struct flow *src_flow)
b0f7b9b5
BP		 2823{
2824 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615
GY		 2825 bool is_mask = src_flow != flow;
2826 const void *check_start = NULL;
2827 size_t check_len = 0;
2828 enum ovs_key_attr expected_bit = 0xff;
2829
2830 if (eth_type_mpls(src_flow->dl_type)) {
2831 if (!is_mask) {
2832 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
2833
2834 if (!(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS))) {
2835 return ODP_FIT_TOO_LITTLE;
2836 }
2837 flow->mpls_lse = nl_attr_get_be32(attrs[OVS_KEY_ATTR_MPLS]);
4a221615
GY		 2838 } else if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_MPLS)) {
2839 flow->mpls_lse = nl_attr_get_be32(attrs[OVS_KEY_ATTR_MPLS]);
2840
2841 if (flow->mpls_lse != 0 && flow->dl_type != htons(0xffff)) {
2842 return ODP_FIT_ERROR;
2843 }
2844 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_MPLS);
4a221615
GY		 2845 }
2846 goto done;
2847 } else if (src_flow->dl_type == htons(ETH_TYPE_IP)) {
2848 if (!is_mask) {
2849 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV4;
b02475c5 2850 }
fea393b1 2851 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV4)) {
34118cae 2852 const struct ovs_key_ipv4 *ipv4_key;
36956a7d 2853
34118cae 2854 ipv4_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV4]);
36956a7d
BP		 2855 flow->nw_src = ipv4_key->ipv4_src;
2856 flow->nw_dst = ipv4_key->ipv4_dst;
2857 flow->nw_proto = ipv4_key->ipv4_proto;
eadef313 2858 flow->nw_tos = ipv4_key->ipv4_tos;
a61680c6 2859 flow->nw_ttl = ipv4_key->ipv4_ttl;
4a221615
GY		 2860 if (is_mask) {
2861 flow->nw_frag = ipv4_key->ipv4_frag;
2862 check_start = ipv4_key;
2863 check_len = sizeof *ipv4_key;
2864 expected_bit = OVS_KEY_ATTR_IPV4;
2865 } else if (!odp_to_ovs_frag(ipv4_key->ipv4_frag, flow)) {
b0f7b9b5 2866 return ODP_FIT_ERROR;
36956a7d 2867 }
34118cae 2868 }
4a221615
GY		 2869 } else if (src_flow->dl_type == htons(ETH_TYPE_IPV6)) {
2870 if (!is_mask) {
2871 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IPV6;
2872 }
fea393b1 2873 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IPV6)) {
34118cae 2874 const struct ovs_key_ipv6 *ipv6_key;
36956a7d 2875
34118cae 2876 ipv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_IPV6]);
d31f1109
JP		 2877 memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
2878 memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
fa8223b7 2879 flow->ipv6_label = ipv6_key->ipv6_label;
d31f1109 2880 flow->nw_proto = ipv6_key->ipv6_proto;
eadef313 2881 flow->nw_tos = ipv6_key->ipv6_tclass;
a61680c6 2882 flow->nw_ttl = ipv6_key->ipv6_hlimit;
4a221615
GY		 2883 if (is_mask) {
2884 flow->nw_frag = ipv6_key->ipv6_frag;
2885 check_start = ipv6_key;
2886 check_len = sizeof *ipv6_key;
2887 expected_bit = OVS_KEY_ATTR_IPV6;
2888 } else if (!odp_to_ovs_frag(ipv6_key->ipv6_frag, flow)) {
b0f7b9b5 2889 return ODP_FIT_ERROR;
d31f1109 2890 }
34118cae 2891 }
4a221615
GY		 2892 } else if (src_flow->dl_type == htons(ETH_TYPE_ARP) ||
2893 src_flow->dl_type == htons(ETH_TYPE_RARP)) {
2894 if (!is_mask) {
2895 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ARP;
2896 }
fea393b1 2897 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ARP)) {
34118cae 2898 const struct ovs_key_arp *arp_key;
d31f1109 2899
34118cae 2900 arp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ARP]);
36956a7d
BP		 2901 flow->nw_src = arp_key->arp_sip;
2902 flow->nw_dst = arp_key->arp_tip;
4a221615 2903 if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
34118cae
BP		 2904 VLOG_ERR_RL(&rl, "unsupported ARP opcode %"PRIu16" in flow "
2905 "key", ntohs(arp_key->arp_op));
b0f7b9b5 2906 return ODP_FIT_ERROR;
36956a7d
BP		 2907 }
2908 flow->nw_proto = ntohs(arp_key->arp_op);
bad68a99
JP		 2909 memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
2910 memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
4a221615
GY		 2911
2912 if (is_mask) {
2913 check_start = arp_key;
2914 check_len = sizeof *arp_key;
2915 expected_bit = OVS_KEY_ATTR_ARP;
2916 }
2917 }
2918 } else {
2919 goto done;
2920 }
2921 if (is_mask) {
2922 if (!is_all_zeros(check_start, check_len) &&
2923 flow->dl_type != htons(0xffff)) {
2924 return ODP_FIT_ERROR;
2925 } else {
2926 expected_attrs |= UINT64_C(1) << expected_bit;
36956a7d 2927 }
36956a7d 2928 }
36956a7d 2929
4a221615
GY		 2930 expected_bit = OVS_KEY_ATTR_UNSPEC;
2931 if (src_flow->nw_proto == IPPROTO_TCP
2932 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
2933 src_flow->dl_type == htons(ETH_TYPE_IPV6))
2934 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2935 if (!is_mask) {
2936 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TCP;
2937 }
fea393b1 2938 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TCP)) {
34118cae 2939 const struct ovs_key_tcp *tcp_key;
36956a7d 2940
34118cae
BP		 2941 tcp_key = nl_attr_get(attrs[OVS_KEY_ATTR_TCP]);
2942 flow->tp_src = tcp_key->tcp_src;
2943 flow->tp_dst = tcp_key->tcp_dst;
4a221615
GY		 2944 expected_bit = OVS_KEY_ATTR_TCP;
2945 }
2946 } else if (src_flow->nw_proto == IPPROTO_UDP
2947 && (src_flow->dl_type == htons(ETH_TYPE_IP) ||
2948 src_flow->dl_type == htons(ETH_TYPE_IPV6))
2949 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2950 if (!is_mask) {
2951 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_UDP;
7257b535 2952 }
fea393b1 2953 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_UDP)) {
34118cae
BP		 2954 const struct ovs_key_udp *udp_key;
2955
2956 udp_key = nl_attr_get(attrs[OVS_KEY_ATTR_UDP]);
2957 flow->tp_src = udp_key->udp_src;
2958 flow->tp_dst = udp_key->udp_dst;
4a221615
GY		 2959 expected_bit = OVS_KEY_ATTR_UDP;
2960 }
c6bcb685
JS		 2961 } else if (flow->nw_proto == IPPROTO_SCTP
2962 && (flow->dl_type == htons(ETH_TYPE_IP) ||
2963 flow->dl_type == htons(ETH_TYPE_IPV6))
2964 && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2965 if (!is_mask) {
2966 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SCTP;
2967 }
2968 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SCTP)) {
2969 const struct ovs_key_sctp *sctp_key;
2970
2971 sctp_key = nl_attr_get(attrs[OVS_KEY_ATTR_SCTP]);
2972 flow->tp_src = sctp_key->sctp_src;
2973 flow->tp_dst = sctp_key->sctp_dst;
2974 expected_bit = OVS_KEY_ATTR_SCTP;
2975 }
4a221615
GY		 2976 } else if (src_flow->nw_proto == IPPROTO_ICMP
2977 && src_flow->dl_type == htons(ETH_TYPE_IP)
2978 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2979 if (!is_mask) {
2980 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMP;
d31f1109 2981 }
fea393b1 2982 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMP)) {
34118cae
BP		 2983 const struct ovs_key_icmp *icmp_key;
2984
2985 icmp_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMP]);
2986 flow->tp_src = htons(icmp_key->icmp_type);
2987 flow->tp_dst = htons(icmp_key->icmp_code);
4a221615
GY		 2988 expected_bit = OVS_KEY_ATTR_ICMP;
2989 }
2990 } else if (src_flow->nw_proto == IPPROTO_ICMPV6
2991 && src_flow->dl_type == htons(ETH_TYPE_IPV6)
2992 && !(src_flow->nw_frag & FLOW_NW_FRAG_LATER)) {
2993 if (!is_mask) {
2994 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6;
685a51a5 2995 }
fea393b1 2996 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6)) {
34118cae
BP		 2997 const struct ovs_key_icmpv6 *icmpv6_key;
2998
2999 icmpv6_key = nl_attr_get(attrs[OVS_KEY_ATTR_ICMPV6]);
3000 flow->tp_src = htons(icmpv6_key->icmpv6_type);
3001 flow->tp_dst = htons(icmpv6_key->icmpv6_code);
4a221615 3002 expected_bit = OVS_KEY_ATTR_ICMPV6;
6f8dbd27
GY		 3003 if (src_flow->tp_dst == htons(0) &&
3004 (src_flow->tp_src == htons(ND_NEIGHBOR_SOLICIT) ||
3005 src_flow->tp_src == htons(ND_NEIGHBOR_ADVERT))) {
4a221615
GY		 3006 if (!is_mask) {
3007 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3008 }
fea393b1 3009 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ND)) {
34118cae
BP		 3010 const struct ovs_key_nd *nd_key;
3011
3012 nd_key = nl_attr_get(attrs[OVS_KEY_ATTR_ND]);
3013 memcpy(&flow->nd_target, nd_key->nd_target,
3014 sizeof flow->nd_target);
3015 memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
3016 memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
4a221615
GY		 3017 if (is_mask) {
3018 if (!is_all_zeros((const uint8_t *) nd_key,
3019 sizeof *nd_key) &&
6f8dbd27
GY		 3020 (flow->tp_src != htons(0xffff) ||
3021 flow->tp_dst != htons(0xffff))) {
4a221615
GY		 3022 return ODP_FIT_ERROR;
3023 } else {
3024 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ND;
3025 }
3026 }
34118cae
BP		 3027 }
3028 }
7257b535 3029 }
34118cae 3030 }
4a221615
GY		 3031 if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
3032 if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
3033 return ODP_FIT_ERROR;
3034 } else {
3035 expected_attrs |= UINT64_C(1) << expected_bit;
3036 }
3037 }
7257b535 3038
4a221615 3039done:
b0f7b9b5
BP		 3040 return check_expectations(present_attrs, out_of_range_attr, expected_attrs,
3041 key, key_len);
3042}
3043
3044/* Parse 802.1Q header then encapsulated L3 attributes. */
3045static enum odp_key_fitness
3046parse_8021q_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
3047 uint64_t present_attrs, int out_of_range_attr,
3048 uint64_t expected_attrs, struct flow *flow,
4a221615
GY		 3049 const struct nlattr *key, size_t key_len,
3050 const struct flow *src_flow)
b0f7b9b5
BP		 3051{
3052 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
4a221615 3053 bool is_mask = src_flow != flow;
b0f7b9b5
BP		 3054
3055 const struct nlattr *encap
3056 = (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)
3057 ? attrs[OVS_KEY_ATTR_ENCAP] : NULL);
3058 enum odp_key_fitness encap_fitness;
3059 enum odp_key_fitness fitness;
3060 ovs_be16 tci;
3061
ec9f40dc 3062 /* Calculate fitness of outer attributes. */
4a221615
GY		 3063 if (!is_mask) {
3064 expected_attrs |= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN) |
3065 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP));
3066 } else {
3067 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3068 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3069 }
3070 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP)) {
3071 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP);
3072 }
3073 }
b0f7b9b5
BP		 3074 fitness = check_expectations(present_attrs, out_of_range_attr,
3075 expected_attrs, key, key_len);
3076
3077 /* Get the VLAN TCI value. */
4a221615 3078 if (!is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN))) {
b0f7b9b5 3079 return ODP_FIT_TOO_LITTLE;
4a221615
GY		 3080 } else {
3081 tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3082 if (!is_mask) {
3083 if (tci == htons(0)) {
3084 /* Corner case for a truncated 802.1Q header. */
3085 if (fitness == ODP_FIT_PERFECT && nl_attr_get_size(encap)) {
3086 return ODP_FIT_TOO_MUCH;
3087 }
3088 return fitness;
3089 } else if (!(tci & htons(VLAN_CFI))) {
3090 VLOG_ERR_RL(&rl, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16" is nonzero "
3091 "but CFI bit is not set", ntohs(tci));
3092 return ODP_FIT_ERROR;
3093 }
3094 }
3095 /* Set vlan_tci.
3096 * Remove the TPID from dl_type since it's not the real Ethertype. */
3097 flow->dl_type = htons(0);
3098 flow->vlan_tci = tci;
3099 }
3100
3101 if (is_mask && !(present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ENCAP))) {
b0f7b9b5 3102 return fitness;
b0f7b9b5 3103 }
b0f7b9b5
BP		 3104 /* Now parse the encapsulated attributes. */
3105 if (!parse_flow_nlattrs(nl_attr_get(encap), nl_attr_get_size(encap),
3106 attrs, &present_attrs, &out_of_range_attr)) {
3107 return ODP_FIT_ERROR;
3108 }
3109 expected_attrs = 0;
3110
4a221615 3111 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow, src_flow)) {
b0f7b9b5
BP		 3112 return ODP_FIT_ERROR;
3113 }
b02475c5 3114 encap_fitness = parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3115 expected_attrs, flow, key, key_len,
3116 src_flow);
b0f7b9b5
BP		 3117
3118 /* The overall fitness is the worse of the outer and inner attributes. */
3119 return MAX(fitness, encap_fitness);
3120}
3121
4a221615
GY		 3122static enum odp_key_fitness
3123odp_flow_key_to_flow__(const struct nlattr *key, size_t key_len,
3124 struct flow *flow, const struct flow *src_flow)
b0f7b9b5 3125{
b0f7b9b5
BP		 3126 const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1];
3127 uint64_t expected_attrs;
3128 uint64_t present_attrs;
3129 int out_of_range_attr;
4a221615 3130 bool is_mask = src_flow != flow;
b0f7b9b5
BP		 3131
3132 memset(flow, 0, sizeof *flow);
3133
3134 /* Parse attributes. */
3135 if (!parse_flow_nlattrs(key, key_len, attrs, &present_attrs,
3136 &out_of_range_attr)) {
3137 return ODP_FIT_ERROR;
3138 }
3139 expected_attrs = 0;
3140
3141 /* Metadata. */
3142 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY)) {
deedf7e7 3143 flow->skb_priority = nl_attr_get_u32(attrs[OVS_KEY_ATTR_PRIORITY]);
b0f7b9b5
BP		 3144 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY;
3145 }
3146
72e8bf28 3147 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK)) {
1362e248 3148 flow->pkt_mark = nl_attr_get_u32(attrs[OVS_KEY_ATTR_SKB_MARK]);
72e8bf28
AA		 3149 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK;
3150 }
3151
9b405f1a
PS		 3152 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL)) {
3153 enum odp_key_fitness res;
05fb0928 3154
617e10e7 3155 res = odp_tun_key_from_attr(attrs[OVS_KEY_ATTR_TUNNEL], &flow->tunnel);
9b405f1a
PS		 3156 if (res == ODP_FIT_ERROR) {
3157 return ODP_FIT_ERROR;
3158 } else if (res == ODP_FIT_PERFECT) {
3159 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL;
05fb0928
JR		 3160 }
3161 }
3162
b0f7b9b5 3163 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT)) {
4e022ec0
AW		 3164 flow->in_port.odp_port
3165 = nl_attr_get_odp_port(attrs[OVS_KEY_ATTR_IN_PORT]);
b0f7b9b5 3166 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT;
4a221615 3167 } else if (!is_mask) {
4e022ec0 3168 flow->in_port.odp_port = ODPP_NONE;
b0f7b9b5
BP		 3169 }
3170
3171 /* Ethernet header. */
3172 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET)) {
3173 const struct ovs_key_ethernet *eth_key;
3174
3175 eth_key = nl_attr_get(attrs[OVS_KEY_ATTR_ETHERNET]);
3176 memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
3177 memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
4a221615
GY		 3178 if (is_mask) {
3179 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
3180 }
3181 }
3182 if (!is_mask) {
3183 expected_attrs |= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET;
b0f7b9b5 3184 }
b0f7b9b5
BP		 3185
3186 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
4a221615
GY		 3187 if (!parse_ethertype(attrs, present_attrs, &expected_attrs, flow,
3188 src_flow)) {
b0f7b9b5
BP		 3189 return ODP_FIT_ERROR;
3190 }
3191
4a221615
GY		 3192 if ((is_mask && (src_flow->vlan_tci & htons(VLAN_CFI))) ||
3193 (!is_mask && src_flow->dl_type == htons(ETH_TYPE_VLAN))) {
b0f7b9b5 3194 return parse_8021q_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3195 expected_attrs, flow, key, key_len, src_flow);
3196 }
3197 if (is_mask) {
3198 flow->vlan_tci = htons(0xffff);
3199 if (present_attrs & (UINT64_C(1) << OVS_KEY_ATTR_VLAN)) {
3200 flow->vlan_tci = nl_attr_get_be16(attrs[OVS_KEY_ATTR_VLAN]);
3201 expected_attrs |= (UINT64_C(1) << OVS_KEY_ATTR_VLAN);
3202 }
b0f7b9b5 3203 }
b02475c5 3204 return parse_l2_5_onward(attrs, present_attrs, out_of_range_attr,
4a221615
GY		 3205 expected_attrs, flow, key, key_len, src_flow);
3206}
3207
3208/* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
3209 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
3210 * 'key' fits our expectations for what a flow key should contain.
3211 *
3212 * The 'in_port' will be the datapath's understanding of the port. The
3213 * caller will need to translate with odp_port_to_ofp_port() if the
3214 * OpenFlow port is needed.
3215 *
3216 * This function doesn't take the packet itself as an argument because none of
3217 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
3218 * it is always possible to infer which additional attribute(s) should appear
3219 * by looking at the attributes for lower-level protocols, e.g. if the network
3220 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
3221 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
3222 * must be absent. */
3223enum odp_key_fitness
3224odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
3225 struct flow *flow)
3226{
3227 return odp_flow_key_to_flow__(key, key_len, flow, flow);
3228}
3229
3230/* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a mask
3231 * structure in 'mask'. 'flow' must be a previously translated flow
3232 * corresponding to 'mask'. Returns an ODP_FIT_* value that indicates how well
3233 * 'key' fits our expectations for what a flow key should contain. */
3234enum odp_key_fitness
3235odp_flow_key_to_mask(const struct nlattr *key, size_t key_len,
3236 struct flow *mask, const struct flow *flow)
3237{
3238 return odp_flow_key_to_flow__(key, key_len, mask, flow);
14608a15 3239}
39db78a0 3240
6814e51f
BP		 3241/* Returns 'fitness' as a string, for use in debug messages. */
3242const char *
3243odp_key_fitness_to_string(enum odp_key_fitness fitness)
3244{
3245 switch (fitness) {
3246 case ODP_FIT_PERFECT:
3247 return "OK";
3248 case ODP_FIT_TOO_MUCH:
3249 return "too_much";
3250 case ODP_FIT_TOO_LITTLE:
3251 return "too_little";
3252 case ODP_FIT_ERROR:
3253 return "error";
3254 default:
3255 return "<unknown>";
3256 }
3257}
3258
39db78a0 3259/* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
e995e3df
BP		 3260 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
3261 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
3262 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
3263 * null, then the return value is not meaningful.) */
39db78a0 3264size_t
e995e3df
BP		 3265odp_put_userspace_action(uint32_t pid,
3266 const void *userdata, size_t userdata_size,
39db78a0
BP		 3267 struct ofpbuf *odp_actions)
3268{
e995e3df 3269 size_t userdata_ofs;
39db78a0
BP		 3270 size_t offset;
3271
3272 offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
3273 nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
e995e3df
BP		 3274 if (userdata) {
3275 userdata_ofs = odp_actions->size + NLA_HDRLEN;
39db78a0 3276 nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
e995e3df
BP		 3277 userdata, userdata_size);
3278 } else {
3279 userdata_ofs = 0;
39db78a0
BP		 3280 }
3281 nl_msg_end_nested(odp_actions, offset);
3282
e995e3df 3283 return userdata_ofs;
39db78a0 3284}
b9ad7294
EJ		 3285
3286void
3287odp_put_tunnel_action(const struct flow_tnl *tunnel,
3288 struct ofpbuf *odp_actions)
3289{
3290 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3291 tun_key_to_attr(odp_actions, tunnel);
3292 nl_msg_end_nested(odp_actions, offset);
3293}
5bbda0aa
EJ		 3294\f
3295/* The commit_odp_actions() function and its helpers. */
3296
3297static void
3298commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
3299 const void *key, size_t key_size)
3300{
3301 size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
3302 nl_msg_put_unspec(odp_actions, key_type, key, key_size);
3303 nl_msg_end_nested(odp_actions, offset);
3304}
3305
09a0d2e7 3306void
1362e248 3307odp_put_pkt_mark_action(const uint32_t pkt_mark,
09a0d2e7
AA		 3308 struct ofpbuf *odp_actions)
3309{
1362e248
JG		 3310 commit_set_action(odp_actions, OVS_KEY_ATTR_SKB_MARK, &pkt_mark,
3311 sizeof(pkt_mark));
09a0d2e7
AA		 3312}
3313
b9ad7294
EJ		 3314/* If any of the flow key data that ODP actions can modify are different in
3315 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
3316 * 'odp_actions' that change the flow tunneling information in key from
3317 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
3318 * same way. In other words, operates the same as commit_odp_actions(), but
3319 * only on tunneling information. */
3320void
3321commit_odp_tunnel_action(const struct flow *flow, struct flow *base,
5bbda0aa
EJ		 3322 struct ofpbuf *odp_actions)
3323{
05fb0928
JR		 3324 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
3325 if (flow->tunnel.ip_dst) {
fc80de30
JR		 3326 if (!memcmp(&base->tunnel, &flow->tunnel, sizeof base->tunnel)) {
3327 return;
3328 }
3329 memcpy(&base->tunnel, &flow->tunnel, sizeof base->tunnel);
b9ad7294 3330 odp_put_tunnel_action(&base->tunnel, odp_actions);
05fb0928 3331 }
5bbda0aa
EJ		 3332}
3333
3334static void
3335commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
1dd35f8a
JP		 3336 struct ofpbuf *odp_actions,
3337 struct flow_wildcards *wc)
5bbda0aa
EJ		 3338{
3339 struct ovs_key_ethernet eth_key;
3340
3341 if (eth_addr_equals(base->dl_src, flow->dl_src) &&
3342 eth_addr_equals(base->dl_dst, flow->dl_dst)) {
3343 return;
3344 }
3345
1dd35f8a
JP		 3346 memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
3347 memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
3348
5bbda0aa
EJ		 3349 memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
3350 memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
3351
3352 memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
3353 memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
3354
3355 commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
3356 &eth_key, sizeof(eth_key));
3357}
3358
3359static void
8fd16af2 3360commit_vlan_action(ovs_be16 vlan_tci, struct flow *base,
1dd35f8a 3361 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5bbda0aa 3362{
8fd16af2 3363 if (base->vlan_tci == vlan_tci) {
5bbda0aa
EJ		 3364 return;
3365 }
3366
1dd35f8a
JP		 3367 memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
3368
5bbda0aa
EJ		 3369 if (base->vlan_tci & htons(VLAN_CFI)) {
3370 nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
3371 }
3372
8fd16af2 3373 if (vlan_tci & htons(VLAN_CFI)) {
5bbda0aa
EJ		 3374 struct ovs_action_push_vlan vlan;
3375
3376 vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
8fd16af2 3377 vlan.vlan_tci = vlan_tci;
5bbda0aa
EJ		 3378 nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
3379 &vlan, sizeof vlan);
3380 }
8fd16af2 3381 base->vlan_tci = vlan_tci;
5bbda0aa
EJ		 3382}
3383
b02475c5
SH		 3384static void
3385commit_mpls_action(const struct flow *flow, struct flow *base,
b0a17866
SH		 3386 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
3387 int *mpls_depth_delta)
b02475c5 3388{
b0a17866 3389 if (flow->mpls_lse == base->mpls_lse && !*mpls_depth_delta) {
b02475c5
SH		 3390 return;
3391 }
3392
1dd35f8a
JP		 3393 memset(&wc->masks.mpls_lse, 0xff, sizeof wc->masks.mpls_lse);
3394
b0a17866
SH		 3395 switch (*mpls_depth_delta) {
3396 case -1:
b02475c5 3397 nl_msg_put_be16(odp_actions, OVS_ACTION_ATTR_POP_MPLS, flow->dl_type);
b0a17866
SH		 3398 break;
3399 case 1: {
b02475c5
SH		 3400 struct ovs_action_push_mpls *mpls;
3401
b02475c5
SH		 3402 mpls = nl_msg_put_unspec_uninit(odp_actions, OVS_ACTION_ATTR_PUSH_MPLS,
3403 sizeof *mpls);
3404 memset(mpls, 0, sizeof *mpls);
3405 mpls->mpls_ethertype = flow->dl_type;
3406 mpls->mpls_lse = flow->mpls_lse;
b0a17866
SH		 3407 break;
3408 }
3409 case 0: {
b02475c5
SH		 3410 struct ovs_key_mpls mpls_key;
3411
20131cef 3412 mpls_key.mpls_lse = flow->mpls_lse;
b02475c5
SH		 3413 commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
3414 &mpls_key, sizeof(mpls_key));
b0a17866
SH		 3415 break;
3416 }
3417 default:
3418 NOT_REACHED();
b02475c5
SH		 3419 }
3420
3421 base->dl_type = flow->dl_type;
3422 base->mpls_lse = flow->mpls_lse;
b0a17866 3423 *mpls_depth_delta = 0;
b02475c5
SH		 3424}
3425
5bbda0aa 3426static void
c4f2731d 3427commit_set_ipv4_action(const struct flow *flow, struct flow *base,
1dd35f8a 3428 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5bbda0aa
EJ		 3429{
3430 struct ovs_key_ipv4 ipv4_key;
3431
5bbda0aa
EJ		 3432 if (base->nw_src == flow->nw_src &&
3433 base->nw_dst == flow->nw_dst &&
3434 base->nw_tos == flow->nw_tos &&
3435 base->nw_ttl == flow->nw_ttl &&
3436 base->nw_frag == flow->nw_frag) {
3437 return;
3438 }
3439
1dd35f8a
JP		 3440 memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
3441 memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
3442 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3443 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3444 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3445 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3446
5bbda0aa
EJ		 3447 ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
3448 ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
3449 ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
3450 ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
3451 ipv4_key.ipv4_proto = base->nw_proto;
c4f2731d 3452 ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
5bbda0aa
EJ		 3453
3454 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
3455 &ipv4_key, sizeof(ipv4_key));
3456}
3457
c4f2731d
PS		 3458static void
3459commit_set_ipv6_action(const struct flow *flow, struct flow *base,
1dd35f8a 3460 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
c4f2731d
PS		 3461{
3462 struct ovs_key_ipv6 ipv6_key;
3463
3464 if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
3465 ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
3466 base->ipv6_label == flow->ipv6_label &&
3467 base->nw_tos == flow->nw_tos &&
3468 base->nw_ttl == flow->nw_ttl &&
3469 base->nw_frag == flow->nw_frag) {
3470 return;
3471 }
3472
1dd35f8a
JP		 3473 memset(&wc->masks.ipv6_src, 0xff, sizeof wc->masks.ipv6_src);
3474 memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst);
3475 memset(&wc->masks.ipv6_label, 0xff, sizeof wc->masks.ipv6_label);
3476 memset(&wc->masks.nw_tos, 0xff, sizeof wc->masks.nw_tos);
3477 memset(&wc->masks.nw_ttl, 0xff, sizeof wc->masks.nw_ttl);
3478 memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
3479 memset(&wc->masks.nw_frag, 0xff, sizeof wc->masks.nw_frag);
3480
c4f2731d
PS		 3481 base->ipv6_src = flow->ipv6_src;
3482 memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
3483 base->ipv6_dst = flow->ipv6_dst;
3484 memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
3485
3486 ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
3487 ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
3488 ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
3489 ipv6_key.ipv6_proto = base->nw_proto;
3490 ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
3491
3492 commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
3493 &ipv6_key, sizeof(ipv6_key));
3494}
3495
3496static void
3497commit_set_nw_action(const struct flow *flow, struct flow *base,
1dd35f8a 3498 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
c4f2731d
PS		 3499{
3500 /* Check if flow really have an IP header. */
3501 if (!flow->nw_proto) {
3502 return;
3503 }
3504
1b035ef2 3505 if (base->dl_type == htons(ETH_TYPE_IP)) {
1dd35f8a 3506 commit_set_ipv4_action(flow, base, odp_actions, wc);
1b035ef2 3507 } else if (base->dl_type == htons(ETH_TYPE_IPV6)) {
1dd35f8a 3508 commit_set_ipv6_action(flow, base, odp_actions, wc);
c4f2731d
PS		 3509 }
3510}
3511
5bbda0aa
EJ		 3512static void
3513commit_set_port_action(const struct flow *flow, struct flow *base,
1dd35f8a 3514 struct ofpbuf *odp_actions, struct flow_wildcards *wc)
5bbda0aa 3515{
1b035ef2 3516 if (!is_ip_any(base) || (!base->tp_src && !base->tp_dst)) {
5bbda0aa
EJ		 3517 return;
3518 }
3519
3520 if (base->tp_src == flow->tp_src &&
3521 base->tp_dst == flow->tp_dst) {
3522 return;
3523 }
3524
1dd35f8a
JP		 3525 memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
3526 memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
3527
5bbda0aa
EJ		 3528 if (flow->nw_proto == IPPROTO_TCP) {
3529 struct ovs_key_tcp port_key;
3530
3531 port_key.tcp_src = base->tp_src = flow->tp_src;
3532 port_key.tcp_dst = base->tp_dst = flow->tp_dst;
3533
3534 commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
3535 &port_key, sizeof(port_key));
3536
3537 } else if (flow->nw_proto == IPPROTO_UDP) {
3538 struct ovs_key_udp port_key;
3539
3540 port_key.udp_src = base->tp_src = flow->tp_src;
3541 port_key.udp_dst = base->tp_dst = flow->tp_dst;
3542
3543 commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
3544 &port_key, sizeof(port_key));
c6bcb685
JS		 3545 } else if (flow->nw_proto == IPPROTO_SCTP) {
3546 struct ovs_key_sctp port_key;
3547
3548 port_key.sctp_src = base->tp_src = flow->tp_src;
3549 port_key.sctp_dst = base->tp_dst = flow->tp_dst;
3550
3551 commit_set_action(odp_actions, OVS_KEY_ATTR_SCTP,
3552 &port_key, sizeof(port_key));
5bbda0aa
EJ		 3553 }
3554}
3555
3556static void
3557commit_set_priority_action(const struct flow *flow, struct flow *base,
1dd35f8a
JP		 3558 struct ofpbuf *odp_actions,
3559 struct flow_wildcards *wc)
5bbda0aa 3560{
deedf7e7 3561 if (base->skb_priority == flow->skb_priority) {
5bbda0aa
EJ		 3562 return;
3563 }
1dd35f8a
JP		 3564
3565 memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority);
deedf7e7 3566 base->skb_priority = flow->skb_priority;
5bbda0aa
EJ		 3567
3568 commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
deedf7e7 3569 &base->skb_priority, sizeof(base->skb_priority));
5bbda0aa
EJ		 3570}
3571
72e8bf28 3572static void
1362e248 3573commit_set_pkt_mark_action(const struct flow *flow, struct flow *base,
1dd35f8a
JP		 3574 struct ofpbuf *odp_actions,
3575 struct flow_wildcards *wc)
72e8bf28 3576{
1362e248 3577 if (base->pkt_mark == flow->pkt_mark) {
72e8bf28
AA		 3578 return;
3579 }
1dd35f8a 3580
1362e248
JG		 3581 memset(&wc->masks.pkt_mark, 0xff, sizeof wc->masks.pkt_mark);
3582 base->pkt_mark = flow->pkt_mark;
72e8bf28 3583
1362e248 3584 odp_put_pkt_mark_action(base->pkt_mark, odp_actions);
72e8bf28 3585}
7fd91025 3586
5bbda0aa
EJ		 3587/* If any of the flow key data that ODP actions can modify are different in
3588 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
b9ad7294
EJ		 3589 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
3590 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
1dd35f8a 3591 * in addition to this function if needed. Sets fields in 'wc' that are
7fd91025
BP		 3592 * used as part of the action.
3593 *
3594 * Returns a reason to force processing the flow's packets into the userspace
3595 * slow path, if there is one, otherwise 0. */
3596enum slow_path_reason
5bbda0aa 3597commit_odp_actions(const struct flow *flow, struct flow *base,
b0a17866
SH		 3598 struct ofpbuf *odp_actions, struct flow_wildcards *wc,
3599 int *mpls_depth_delta)
5bbda0aa 3600{
1dd35f8a 3601 commit_set_ether_addr_action(flow, base, odp_actions, wc);
8fd16af2 3602 commit_vlan_action(flow->vlan_tci, base, odp_actions, wc);
1dd35f8a
JP		 3603 commit_set_nw_action(flow, base, odp_actions, wc);
3604 commit_set_port_action(flow, base, odp_actions, wc);
ec9f40dc 3605 /* Committing MPLS actions should occur after committing nw and port
1b035ef2
SH		 3606 * actions. This is because committing MPLS actions may alter a packet so
3607 * that it is no longer IP and thus nw and port actions are no longer valid.
3608 */
b0a17866 3609 commit_mpls_action(flow, base, odp_actions, wc, mpls_depth_delta);
1dd35f8a 3610 commit_set_priority_action(flow, base, odp_actions, wc);
1362e248 3611 commit_set_pkt_mark_action(flow, base, odp_actions, wc);
7fd91025
BP		 3612
3613 return 0;
5bbda0aa 3614}
openvswitch packages for PVE