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ac0630a2 RB |
1 | /* |
2 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
3 | * you may not use this file except in compliance with the License. | |
4 | * You may obtain a copy of the License at: | |
5 | * | |
6 | * http://www.apache.org/licenses/LICENSE-2.0 | |
7 | * | |
8 | * Unless required by applicable law or agreed to in writing, software | |
9 | * distributed under the License is distributed on an "AS IS" BASIS, | |
10 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
11 | * See the License for the specific language governing permissions and | |
12 | * limitations under the License. | |
13 | */ | |
14 | ||
15 | #include <config.h> | |
16 | ||
17 | #include <getopt.h> | |
18 | #include <stdlib.h> | |
19 | #include <stdio.h> | |
20 | ||
21 | #include "command-line.h" | |
67d9b930 | 22 | #include "daemon.h" |
ac0630a2 | 23 | #include "dirs.h" |
bd39395f | 24 | #include "dynamic-string.h" |
ac0630a2 | 25 | #include "fatal-signal.h" |
4edcdcf4 RB |
26 | #include "hash.h" |
27 | #include "hmap.h" | |
bd39395f BP |
28 | #include "json.h" |
29 | #include "ovn/lib/lex.h" | |
e3df8838 BP |
30 | #include "ovn/lib/ovn-nb-idl.h" |
31 | #include "ovn/lib/ovn-sb-idl.h" | |
ac0630a2 | 32 | #include "poll-loop.h" |
5868eb24 | 33 | #include "smap.h" |
ac0630a2 RB |
34 | #include "stream.h" |
35 | #include "stream-ssl.h" | |
7b303ff9 | 36 | #include "unixctl.h" |
ac0630a2 | 37 | #include "util.h" |
4edcdcf4 | 38 | #include "uuid.h" |
ac0630a2 RB |
39 | #include "openvswitch/vlog.h" |
40 | ||
2e2762d4 | 41 | VLOG_DEFINE_THIS_MODULE(ovn_northd); |
ac0630a2 | 42 | |
7b303ff9 AW |
43 | static unixctl_cb_func ovn_northd_exit; |
44 | ||
2e2762d4 | 45 | struct northd_context { |
f93818dd | 46 | struct ovsdb_idl *ovnnb_idl; |
ec78987f | 47 | struct ovsdb_idl *ovnsb_idl; |
f93818dd | 48 | struct ovsdb_idl_txn *ovnnb_txn; |
3c78b3ca | 49 | struct ovsdb_idl_txn *ovnsb_txn; |
f93818dd RB |
50 | }; |
51 | ||
ac0630a2 | 52 | static const char *ovnnb_db; |
ec78987f | 53 | static const char *ovnsb_db; |
ac0630a2 RB |
54 | |
55 | static const char *default_db(void); | |
56 | ||
091e3af9 JP |
57 | |
58 | /* Ingress pipeline stages. | |
59 | * | |
60 | * These must be listed in the order that the stages will be executed. */ | |
61 | #define INGRESS_STAGES \ | |
62 | INGRESS_STAGE(PORT_SEC, port_sec) \ | |
1b19bbb4 | 63 | INGRESS_STAGE(ACL, acl) \ |
091e3af9 JP |
64 | INGRESS_STAGE(L2_LKUP, l2_lkup) |
65 | ||
66 | enum ingress_stage { | |
67 | #define INGRESS_STAGE(NAME, STR) S_IN_##NAME, | |
68 | INGRESS_STAGES | |
69 | #undef INGRESS_STAGE | |
70 | INGRESS_N_STAGES | |
71 | }; | |
72 | ||
73 | /* Egress pipeline stages. | |
74 | * | |
75 | * These must be listed in the order that the stages will be executed. */ | |
76 | #define EGRESS_STAGES \ | |
77 | EGRESS_STAGE(ACL, acl) \ | |
78 | EGRESS_STAGE(PORT_SEC, port_sec) | |
79 | ||
80 | enum egress_stage { | |
81 | #define EGRESS_STAGE(NAME, STR) S_OUT_##NAME, | |
82 | EGRESS_STAGES | |
83 | #undef EGRESS_STAGE | |
84 | EGRESS_N_STAGES | |
85 | }; | |
86 | ||
ac0630a2 RB |
87 | static void |
88 | usage(void) | |
89 | { | |
90 | printf("\ | |
91 | %s: OVN northbound management daemon\n\ | |
92 | usage: %s [OPTIONS]\n\ | |
93 | \n\ | |
94 | Options:\n\ | |
95 | --ovnnb-db=DATABASE connect to ovn-nb database at DATABASE\n\ | |
96 | (default: %s)\n\ | |
ec78987f | 97 | --ovnsb-db=DATABASE connect to ovn-sb database at DATABASE\n\ |
ac0630a2 RB |
98 | (default: %s)\n\ |
99 | -h, --help display this help message\n\ | |
100 | -o, --options list available options\n\ | |
101 | -V, --version display version information\n\ | |
102 | ", program_name, program_name, default_db(), default_db()); | |
67d9b930 | 103 | daemon_usage(); |
ac0630a2 RB |
104 | vlog_usage(); |
105 | stream_usage("database", true, true, false); | |
106 | } | |
107 | \f | |
5868eb24 BP |
108 | struct tnlid_node { |
109 | struct hmap_node hmap_node; | |
110 | uint32_t tnlid; | |
111 | }; | |
112 | ||
113 | static void | |
114 | destroy_tnlids(struct hmap *tnlids) | |
4edcdcf4 | 115 | { |
5868eb24 BP |
116 | struct tnlid_node *node, *next; |
117 | HMAP_FOR_EACH_SAFE (node, next, hmap_node, tnlids) { | |
118 | hmap_remove(tnlids, &node->hmap_node); | |
119 | free(node); | |
120 | } | |
121 | hmap_destroy(tnlids); | |
122 | } | |
123 | ||
124 | static void | |
125 | add_tnlid(struct hmap *set, uint32_t tnlid) | |
126 | { | |
127 | struct tnlid_node *node = xmalloc(sizeof *node); | |
128 | hmap_insert(set, &node->hmap_node, hash_int(tnlid, 0)); | |
129 | node->tnlid = tnlid; | |
4edcdcf4 RB |
130 | } |
131 | ||
4edcdcf4 | 132 | static bool |
5868eb24 | 133 | tnlid_in_use(const struct hmap *set, uint32_t tnlid) |
4edcdcf4 | 134 | { |
5868eb24 BP |
135 | const struct tnlid_node *node; |
136 | HMAP_FOR_EACH_IN_BUCKET (node, hmap_node, hash_int(tnlid, 0), set) { | |
137 | if (node->tnlid == tnlid) { | |
138 | return true; | |
139 | } | |
140 | } | |
141 | return false; | |
142 | } | |
4edcdcf4 | 143 | |
5868eb24 BP |
144 | static uint32_t |
145 | allocate_tnlid(struct hmap *set, const char *name, uint32_t max, | |
146 | uint32_t *hint) | |
147 | { | |
148 | for (uint32_t tnlid = *hint + 1; tnlid != *hint; | |
149 | tnlid = tnlid + 1 <= max ? tnlid + 1 : 1) { | |
150 | if (!tnlid_in_use(set, tnlid)) { | |
151 | add_tnlid(set, tnlid); | |
152 | *hint = tnlid; | |
153 | return tnlid; | |
154 | } | |
4edcdcf4 RB |
155 | } |
156 | ||
5868eb24 BP |
157 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1); |
158 | VLOG_WARN_RL(&rl, "all %s tunnel ids exhausted", name); | |
159 | return 0; | |
160 | } | |
161 | \f | |
162 | /* The 'key' comes from nb->header_.uuid or sb->external_ids:logical-switch. */ | |
163 | struct ovn_datapath { | |
164 | struct hmap_node key_node; /* Index on 'key'. */ | |
165 | struct uuid key; /* nb->header_.uuid. */ | |
4edcdcf4 | 166 | |
5868eb24 BP |
167 | const struct nbrec_logical_switch *nb; /* May be NULL. */ |
168 | const struct sbrec_datapath_binding *sb; /* May be NULL. */ | |
4edcdcf4 | 169 | |
5868eb24 | 170 | struct ovs_list list; /* In list of similar records. */ |
4edcdcf4 | 171 | |
5868eb24 BP |
172 | struct hmap port_tnlids; |
173 | uint32_t port_key_hint; | |
174 | ||
175 | bool has_unknown; | |
176 | }; | |
177 | ||
178 | static struct ovn_datapath * | |
179 | ovn_datapath_create(struct hmap *datapaths, const struct uuid *key, | |
180 | const struct nbrec_logical_switch *nb, | |
181 | const struct sbrec_datapath_binding *sb) | |
182 | { | |
183 | struct ovn_datapath *od = xzalloc(sizeof *od); | |
184 | od->key = *key; | |
185 | od->sb = sb; | |
186 | od->nb = nb; | |
187 | hmap_init(&od->port_tnlids); | |
188 | od->port_key_hint = 0; | |
189 | hmap_insert(datapaths, &od->key_node, uuid_hash(&od->key)); | |
190 | return od; | |
191 | } | |
192 | ||
193 | static void | |
194 | ovn_datapath_destroy(struct hmap *datapaths, struct ovn_datapath *od) | |
195 | { | |
196 | if (od) { | |
197 | /* Don't remove od->list. It is used within build_datapaths() as a | |
198 | * private list and once we've exited that function it is not safe to | |
199 | * use it. */ | |
200 | hmap_remove(datapaths, &od->key_node); | |
201 | destroy_tnlids(&od->port_tnlids); | |
202 | free(od); | |
203 | } | |
204 | } | |
205 | ||
206 | static struct ovn_datapath * | |
207 | ovn_datapath_find(struct hmap *datapaths, const struct uuid *uuid) | |
208 | { | |
209 | struct ovn_datapath *od; | |
210 | ||
211 | HMAP_FOR_EACH_WITH_HASH (od, key_node, uuid_hash(uuid), datapaths) { | |
212 | if (uuid_equals(uuid, &od->key)) { | |
213 | return od; | |
214 | } | |
215 | } | |
216 | return NULL; | |
217 | } | |
218 | ||
219 | static struct ovn_datapath * | |
220 | ovn_datapath_from_sbrec(struct hmap *datapaths, | |
221 | const struct sbrec_datapath_binding *sb) | |
222 | { | |
223 | struct uuid key; | |
224 | ||
225 | if (!smap_get_uuid(&sb->external_ids, "logical-switch", &key)) { | |
226 | return NULL; | |
227 | } | |
228 | return ovn_datapath_find(datapaths, &key); | |
229 | } | |
230 | ||
231 | static void | |
232 | join_datapaths(struct northd_context *ctx, struct hmap *datapaths, | |
233 | struct ovs_list *sb_only, struct ovs_list *nb_only, | |
234 | struct ovs_list *both) | |
235 | { | |
236 | hmap_init(datapaths); | |
237 | list_init(sb_only); | |
238 | list_init(nb_only); | |
239 | list_init(both); | |
240 | ||
241 | const struct sbrec_datapath_binding *sb, *sb_next; | |
242 | SBREC_DATAPATH_BINDING_FOR_EACH_SAFE (sb, sb_next, ctx->ovnsb_idl) { | |
243 | struct uuid key; | |
244 | if (!smap_get_uuid(&sb->external_ids, "logical-switch", &key)) { | |
245 | ovsdb_idl_txn_add_comment(ctx->ovnsb_txn, | |
246 | "deleting Datapath_Binding "UUID_FMT" that " | |
247 | "lacks external-ids:logical-switch", | |
248 | UUID_ARGS(&sb->header_.uuid)); | |
249 | sbrec_datapath_binding_delete(sb); | |
250 | continue; | |
251 | } | |
252 | ||
253 | if (ovn_datapath_find(datapaths, &key)) { | |
254 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1); | |
255 | VLOG_INFO_RL(&rl, "deleting Datapath_Binding "UUID_FMT" with " | |
256 | "duplicate external-ids:logical-switch "UUID_FMT, | |
257 | UUID_ARGS(&sb->header_.uuid), UUID_ARGS(&key)); | |
258 | sbrec_datapath_binding_delete(sb); | |
259 | continue; | |
260 | } | |
261 | ||
262 | struct ovn_datapath *od = ovn_datapath_create(datapaths, &key, | |
263 | NULL, sb); | |
264 | list_push_back(sb_only, &od->list); | |
265 | } | |
266 | ||
267 | const struct nbrec_logical_switch *nb; | |
268 | NBREC_LOGICAL_SWITCH_FOR_EACH (nb, ctx->ovnnb_idl) { | |
269 | struct ovn_datapath *od = ovn_datapath_find(datapaths, | |
270 | &nb->header_.uuid); | |
271 | if (od) { | |
272 | od->nb = nb; | |
273 | list_remove(&od->list); | |
274 | list_push_back(both, &od->list); | |
275 | } else { | |
276 | od = ovn_datapath_create(datapaths, &nb->header_.uuid, nb, NULL); | |
277 | list_push_back(nb_only, &od->list); | |
278 | } | |
279 | } | |
280 | } | |
281 | ||
282 | static uint32_t | |
283 | ovn_datapath_allocate_key(struct hmap *dp_tnlids) | |
284 | { | |
285 | static uint32_t hint; | |
286 | return allocate_tnlid(dp_tnlids, "datapath", (1u << 24) - 1, &hint); | |
287 | } | |
288 | ||
289 | static void | |
290 | build_datapaths(struct northd_context *ctx, struct hmap *datapaths) | |
291 | { | |
292 | struct ovs_list sb_only, nb_only, both; | |
293 | ||
294 | join_datapaths(ctx, datapaths, &sb_only, &nb_only, &both); | |
295 | ||
296 | if (!list_is_empty(&nb_only)) { | |
297 | /* First index the in-use datapath tunnel IDs. */ | |
298 | struct hmap dp_tnlids = HMAP_INITIALIZER(&dp_tnlids); | |
299 | struct ovn_datapath *od; | |
300 | LIST_FOR_EACH (od, list, &both) { | |
301 | add_tnlid(&dp_tnlids, od->sb->tunnel_key); | |
302 | } | |
303 | ||
304 | /* Add southbound record for each unmatched northbound record. */ | |
305 | LIST_FOR_EACH (od, list, &nb_only) { | |
306 | uint16_t tunnel_key = ovn_datapath_allocate_key(&dp_tnlids); | |
307 | if (!tunnel_key) { | |
308 | break; | |
309 | } | |
310 | ||
311 | od->sb = sbrec_datapath_binding_insert(ctx->ovnsb_txn); | |
312 | ||
5868eb24 BP |
313 | char uuid_s[UUID_LEN + 1]; |
314 | sprintf(uuid_s, UUID_FMT, UUID_ARGS(&od->nb->header_.uuid)); | |
aaf881c6 BP |
315 | const struct smap id = SMAP_CONST1(&id, "logical-switch", uuid_s); |
316 | sbrec_datapath_binding_set_external_ids(od->sb, &id); | |
5868eb24 BP |
317 | |
318 | sbrec_datapath_binding_set_tunnel_key(od->sb, tunnel_key); | |
319 | } | |
320 | destroy_tnlids(&dp_tnlids); | |
321 | } | |
322 | ||
323 | /* Delete southbound records without northbound matches. */ | |
324 | struct ovn_datapath *od, *next; | |
325 | LIST_FOR_EACH_SAFE (od, next, list, &sb_only) { | |
326 | list_remove(&od->list); | |
327 | sbrec_datapath_binding_delete(od->sb); | |
328 | ovn_datapath_destroy(datapaths, od); | |
329 | } | |
330 | } | |
331 | \f | |
332 | struct ovn_port { | |
333 | struct hmap_node key_node; /* Index on 'key'. */ | |
334 | const char *key; /* nb->name and sb->logical_port */ | |
335 | ||
336 | const struct nbrec_logical_port *nb; /* May be NULL. */ | |
337 | const struct sbrec_port_binding *sb; /* May be NULL. */ | |
338 | ||
339 | struct ovn_datapath *od; | |
340 | ||
341 | struct ovs_list list; /* In list of similar records. */ | |
342 | }; | |
343 | ||
344 | static struct ovn_port * | |
345 | ovn_port_create(struct hmap *ports, const char *key, | |
346 | const struct nbrec_logical_port *nb, | |
347 | const struct sbrec_port_binding *sb) | |
348 | { | |
349 | struct ovn_port *op = xzalloc(sizeof *op); | |
350 | op->key = key; | |
351 | op->sb = sb; | |
352 | op->nb = nb; | |
353 | hmap_insert(ports, &op->key_node, hash_string(op->key, 0)); | |
354 | return op; | |
355 | } | |
356 | ||
357 | static void | |
358 | ovn_port_destroy(struct hmap *ports, struct ovn_port *port) | |
359 | { | |
360 | if (port) { | |
361 | /* Don't remove port->list. It is used within build_ports() as a | |
362 | * private list and once we've exited that function it is not safe to | |
363 | * use it. */ | |
364 | hmap_remove(ports, &port->key_node); | |
365 | free(port); | |
366 | } | |
367 | } | |
368 | ||
369 | static struct ovn_port * | |
370 | ovn_port_find(struct hmap *ports, const char *name) | |
371 | { | |
372 | struct ovn_port *op; | |
373 | ||
374 | HMAP_FOR_EACH_WITH_HASH (op, key_node, hash_string(name, 0), ports) { | |
375 | if (!strcmp(op->key, name)) { | |
376 | return op; | |
377 | } | |
378 | } | |
379 | return NULL; | |
380 | } | |
381 | ||
382 | static uint32_t | |
383 | ovn_port_allocate_key(struct ovn_datapath *od) | |
384 | { | |
385 | return allocate_tnlid(&od->port_tnlids, "port", | |
386 | (1u << 15) - 1, &od->port_key_hint); | |
387 | } | |
388 | ||
389 | static void | |
390 | join_logical_ports(struct northd_context *ctx, | |
391 | struct hmap *datapaths, struct hmap *ports, | |
392 | struct ovs_list *sb_only, struct ovs_list *nb_only, | |
393 | struct ovs_list *both) | |
394 | { | |
395 | hmap_init(ports); | |
396 | list_init(sb_only); | |
397 | list_init(nb_only); | |
398 | list_init(both); | |
399 | ||
400 | const struct sbrec_port_binding *sb; | |
401 | SBREC_PORT_BINDING_FOR_EACH (sb, ctx->ovnsb_idl) { | |
402 | struct ovn_port *op = ovn_port_create(ports, sb->logical_port, | |
403 | NULL, sb); | |
404 | list_push_back(sb_only, &op->list); | |
405 | } | |
406 | ||
407 | struct ovn_datapath *od; | |
408 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
409 | for (size_t i = 0; i < od->nb->n_ports; i++) { | |
410 | const struct nbrec_logical_port *nb = od->nb->ports[i]; | |
411 | struct ovn_port *op = ovn_port_find(ports, nb->name); | |
412 | if (op) { | |
413 | op->nb = nb; | |
414 | list_remove(&op->list); | |
415 | list_push_back(both, &op->list); | |
416 | } else { | |
417 | op = ovn_port_create(ports, nb->name, nb, NULL); | |
418 | list_push_back(nb_only, &op->list); | |
419 | } | |
420 | op->od = od; | |
421 | } | |
422 | } | |
423 | } | |
424 | ||
425 | static void | |
426 | ovn_port_update_sbrec(const struct ovn_port *op) | |
427 | { | |
bf4afb5a AW |
428 | sbrec_port_binding_set_type(op->sb, op->nb->type); |
429 | sbrec_port_binding_set_options(op->sb, &op->nb->options); | |
5868eb24 BP |
430 | sbrec_port_binding_set_datapath(op->sb, op->od->sb); |
431 | sbrec_port_binding_set_parent_port(op->sb, op->nb->parent_name); | |
432 | sbrec_port_binding_set_tag(op->sb, op->nb->tag, op->nb->n_tag); | |
433 | sbrec_port_binding_set_mac(op->sb, (const char **) op->nb->macs, | |
434 | op->nb->n_macs); | |
435 | } | |
436 | ||
437 | static void | |
438 | build_ports(struct northd_context *ctx, struct hmap *datapaths, | |
439 | struct hmap *ports) | |
440 | { | |
441 | struct ovs_list sb_only, nb_only, both; | |
442 | ||
443 | join_logical_ports(ctx, datapaths, ports, &sb_only, &nb_only, &both); | |
444 | ||
445 | /* For logical ports that are in both databases, update the southbound | |
446 | * record based on northbound data. Also index the in-use tunnel_keys. */ | |
447 | struct ovn_port *op, *next; | |
448 | LIST_FOR_EACH_SAFE (op, next, list, &both) { | |
449 | ovn_port_update_sbrec(op); | |
450 | ||
451 | add_tnlid(&op->od->port_tnlids, op->sb->tunnel_key); | |
452 | if (op->sb->tunnel_key > op->od->port_key_hint) { | |
453 | op->od->port_key_hint = op->sb->tunnel_key; | |
454 | } | |
455 | } | |
456 | ||
457 | /* Add southbound record for each unmatched northbound record. */ | |
458 | LIST_FOR_EACH_SAFE (op, next, list, &nb_only) { | |
459 | uint16_t tunnel_key = ovn_port_allocate_key(op->od); | |
460 | if (!tunnel_key) { | |
461 | continue; | |
462 | } | |
463 | ||
464 | op->sb = sbrec_port_binding_insert(ctx->ovnsb_txn); | |
465 | ovn_port_update_sbrec(op); | |
466 | ||
467 | sbrec_port_binding_set_logical_port(op->sb, op->key); | |
468 | sbrec_port_binding_set_tunnel_key(op->sb, tunnel_key); | |
469 | } | |
470 | ||
471 | /* Delete southbound records without northbound matches. */ | |
472 | LIST_FOR_EACH_SAFE(op, next, list, &sb_only) { | |
473 | list_remove(&op->list); | |
474 | sbrec_port_binding_delete(op->sb); | |
475 | ovn_port_destroy(ports, op); | |
476 | } | |
477 | } | |
478 | \f | |
479 | #define OVN_MIN_MULTICAST 32768 | |
480 | #define OVN_MAX_MULTICAST 65535 | |
481 | ||
482 | struct multicast_group { | |
483 | const char *name; | |
484 | uint16_t key; /* OVN_MIN_MULTICAST...OVN_MAX_MULTICAST. */ | |
485 | }; | |
486 | ||
487 | #define MC_FLOOD "_MC_flood" | |
488 | static const struct multicast_group mc_flood = { MC_FLOOD, 65535 }; | |
489 | ||
490 | #define MC_UNKNOWN "_MC_unknown" | |
491 | static const struct multicast_group mc_unknown = { MC_UNKNOWN, 65534 }; | |
492 | ||
493 | static bool | |
494 | multicast_group_equal(const struct multicast_group *a, | |
495 | const struct multicast_group *b) | |
496 | { | |
497 | return !strcmp(a->name, b->name) && a->key == b->key; | |
498 | } | |
499 | ||
500 | /* Multicast group entry. */ | |
501 | struct ovn_multicast { | |
502 | struct hmap_node hmap_node; /* Index on 'datapath' and 'key'. */ | |
503 | struct ovn_datapath *datapath; | |
504 | const struct multicast_group *group; | |
505 | ||
506 | struct ovn_port **ports; | |
507 | size_t n_ports, allocated_ports; | |
508 | }; | |
509 | ||
510 | static uint32_t | |
511 | ovn_multicast_hash(const struct ovn_datapath *datapath, | |
512 | const struct multicast_group *group) | |
513 | { | |
514 | return hash_pointer(datapath, group->key); | |
515 | } | |
516 | ||
517 | static struct ovn_multicast * | |
518 | ovn_multicast_find(struct hmap *mcgroups, struct ovn_datapath *datapath, | |
519 | const struct multicast_group *group) | |
520 | { | |
521 | struct ovn_multicast *mc; | |
522 | ||
523 | HMAP_FOR_EACH_WITH_HASH (mc, hmap_node, | |
524 | ovn_multicast_hash(datapath, group), mcgroups) { | |
525 | if (mc->datapath == datapath | |
526 | && multicast_group_equal(mc->group, group)) { | |
527 | return mc; | |
4edcdcf4 RB |
528 | } |
529 | } | |
5868eb24 BP |
530 | return NULL; |
531 | } | |
532 | ||
533 | static void | |
534 | ovn_multicast_add(struct hmap *mcgroups, const struct multicast_group *group, | |
535 | struct ovn_port *port) | |
536 | { | |
537 | struct ovn_datapath *od = port->od; | |
538 | struct ovn_multicast *mc = ovn_multicast_find(mcgroups, od, group); | |
539 | if (!mc) { | |
540 | mc = xmalloc(sizeof *mc); | |
541 | hmap_insert(mcgroups, &mc->hmap_node, ovn_multicast_hash(od, group)); | |
542 | mc->datapath = od; | |
543 | mc->group = group; | |
544 | mc->n_ports = 0; | |
545 | mc->allocated_ports = 4; | |
546 | mc->ports = xmalloc(mc->allocated_ports * sizeof *mc->ports); | |
547 | } | |
548 | if (mc->n_ports >= mc->allocated_ports) { | |
549 | mc->ports = x2nrealloc(mc->ports, &mc->allocated_ports, | |
550 | sizeof *mc->ports); | |
551 | } | |
552 | mc->ports[mc->n_ports++] = port; | |
553 | } | |
4edcdcf4 | 554 | |
5868eb24 BP |
555 | static void |
556 | ovn_multicast_destroy(struct hmap *mcgroups, struct ovn_multicast *mc) | |
557 | { | |
558 | if (mc) { | |
559 | hmap_remove(mcgroups, &mc->hmap_node); | |
560 | free(mc->ports); | |
561 | free(mc); | |
562 | } | |
563 | } | |
4edcdcf4 | 564 | |
5868eb24 BP |
565 | static void |
566 | ovn_multicast_update_sbrec(const struct ovn_multicast *mc, | |
567 | const struct sbrec_multicast_group *sb) | |
568 | { | |
569 | struct sbrec_port_binding **ports = xmalloc(mc->n_ports * sizeof *ports); | |
570 | for (size_t i = 0; i < mc->n_ports; i++) { | |
571 | ports[i] = CONST_CAST(struct sbrec_port_binding *, mc->ports[i]->sb); | |
572 | } | |
573 | sbrec_multicast_group_set_ports(sb, ports, mc->n_ports); | |
574 | free(ports); | |
4edcdcf4 | 575 | } |
bd39395f | 576 | \f |
48605550 | 577 | /* Logical flow generation. |
bd39395f | 578 | * |
48605550 | 579 | * This code generates the Logical_Flow table in the southbound database, as a |
bd39395f BP |
580 | * function of most of the northbound database. |
581 | */ | |
582 | ||
5868eb24 BP |
583 | struct ovn_lflow { |
584 | struct hmap_node hmap_node; | |
bd39395f | 585 | |
5868eb24 BP |
586 | struct ovn_datapath *od; |
587 | enum ovn_pipeline { P_IN, P_OUT } pipeline; | |
588 | uint8_t table_id; | |
589 | uint16_t priority; | |
590 | char *match; | |
591 | char *actions; | |
bd39395f BP |
592 | }; |
593 | ||
594 | static size_t | |
5868eb24 | 595 | ovn_lflow_hash(const struct ovn_lflow *lflow) |
bd39395f | 596 | { |
5868eb24 BP |
597 | size_t hash = uuid_hash(&lflow->od->key); |
598 | hash = hash_2words((lflow->table_id << 16) | lflow->priority, hash); | |
599 | hash = hash_string(lflow->match, hash); | |
600 | return hash_string(lflow->actions, hash); | |
bd39395f BP |
601 | } |
602 | ||
5868eb24 BP |
603 | static bool |
604 | ovn_lflow_equal(const struct ovn_lflow *a, const struct ovn_lflow *b) | |
605 | { | |
606 | return (a->od == b->od | |
607 | && a->pipeline == b->pipeline | |
608 | && a->table_id == b->table_id | |
609 | && a->priority == b->priority | |
610 | && !strcmp(a->match, b->match) | |
611 | && !strcmp(a->actions, b->actions)); | |
612 | } | |
613 | ||
614 | static void | |
615 | ovn_lflow_init(struct ovn_lflow *lflow, struct ovn_datapath *od, | |
616 | enum ovn_pipeline pipeline, uint8_t table_id, uint16_t priority, | |
617 | char *match, char *actions) | |
bd39395f | 618 | { |
5868eb24 BP |
619 | lflow->od = od; |
620 | lflow->pipeline = pipeline; | |
621 | lflow->table_id = table_id; | |
622 | lflow->priority = priority; | |
623 | lflow->match = match; | |
624 | lflow->actions = actions; | |
bd39395f BP |
625 | } |
626 | ||
091e3af9 JP |
627 | static const char * |
628 | ingress_stage_to_str(int stage) { | |
629 | switch (stage) { | |
630 | #define INGRESS_STAGE(NAME, STR) case S_IN_##NAME: return #STR; | |
631 | INGRESS_STAGES | |
632 | #undef INGRESS_STAGE | |
633 | default: return "<unknown>"; | |
634 | } | |
635 | } | |
636 | ||
637 | static const char * | |
638 | egress_stage_to_str(int stage) { | |
639 | switch (stage) { | |
640 | #define EGRESS_STAGE(NAME, STR) case S_OUT_##NAME: return #STR; | |
641 | EGRESS_STAGES | |
642 | #undef EGRESS_STAGE | |
643 | default: return "<unknown>"; | |
644 | } | |
645 | } | |
646 | ||
48605550 | 647 | /* Adds a row with the specified contents to the Logical_Flow table. */ |
bd39395f | 648 | static void |
5868eb24 BP |
649 | ovn_lflow_add(struct hmap *lflow_map, struct ovn_datapath *od, |
650 | enum ovn_pipeline pipeline, uint8_t table_id, uint16_t priority, | |
651 | const char *match, const char *actions) | |
652 | { | |
653 | struct ovn_lflow *lflow = xmalloc(sizeof *lflow); | |
654 | ovn_lflow_init(lflow, od, pipeline, table_id, priority, | |
655 | xstrdup(match), xstrdup(actions)); | |
656 | hmap_insert(lflow_map, &lflow->hmap_node, ovn_lflow_hash(lflow)); | |
657 | } | |
658 | ||
659 | static struct ovn_lflow * | |
660 | ovn_lflow_find(struct hmap *lflows, struct ovn_datapath *od, | |
661 | enum ovn_pipeline pipeline, uint8_t table_id, uint16_t priority, | |
662 | const char *match, const char *actions) | |
663 | { | |
664 | struct ovn_lflow target; | |
665 | ovn_lflow_init(&target, od, pipeline, table_id, priority, | |
666 | CONST_CAST(char *, match), CONST_CAST(char *, actions)); | |
667 | ||
668 | struct ovn_lflow *lflow; | |
669 | HMAP_FOR_EACH_WITH_HASH (lflow, hmap_node, ovn_lflow_hash(&target), | |
670 | lflows) { | |
671 | if (ovn_lflow_equal(lflow, &target)) { | |
672 | return lflow; | |
bd39395f BP |
673 | } |
674 | } | |
5868eb24 BP |
675 | return NULL; |
676 | } | |
bd39395f | 677 | |
5868eb24 BP |
678 | static void |
679 | ovn_lflow_destroy(struct hmap *lflows, struct ovn_lflow *lflow) | |
680 | { | |
681 | if (lflow) { | |
682 | hmap_remove(lflows, &lflow->hmap_node); | |
683 | free(lflow->match); | |
684 | free(lflow->actions); | |
685 | free(lflow); | |
686 | } | |
bd39395f BP |
687 | } |
688 | ||
bd39395f BP |
689 | /* Appends port security constraints on L2 address field 'eth_addr_field' |
690 | * (e.g. "eth.src" or "eth.dst") to 'match'. 'port_security', with | |
691 | * 'n_port_security' elements, is the collection of port_security constraints | |
f7cb14cd | 692 | * from an OVN_NB Logical_Port row. */ |
bd39395f BP |
693 | static void |
694 | build_port_security(const char *eth_addr_field, | |
695 | char **port_security, size_t n_port_security, | |
696 | struct ds *match) | |
697 | { | |
698 | size_t base_len = match->length; | |
699 | ds_put_format(match, " && %s == {", eth_addr_field); | |
700 | ||
701 | size_t n = 0; | |
702 | for (size_t i = 0; i < n_port_security; i++) { | |
74ff3298 | 703 | struct eth_addr ea; |
f7cb14cd | 704 | |
74ff3298 | 705 | if (eth_addr_from_string(port_security[i], &ea)) { |
f7cb14cd | 706 | ds_put_format(match, ETH_ADDR_FMT, ETH_ADDR_ARGS(ea)); |
bd39395f BP |
707 | ds_put_char(match, ' '); |
708 | n++; | |
709 | } | |
710 | } | |
f7cb14cd | 711 | ds_chomp(match, ' '); |
bd39395f | 712 | ds_put_cstr(match, "}"); |
4edcdcf4 | 713 | |
bd39395f BP |
714 | if (!n) { |
715 | match->length = base_len; | |
716 | } | |
717 | } | |
718 | ||
95a9a275 RB |
719 | static bool |
720 | lport_is_enabled(const struct nbrec_logical_port *lport) | |
721 | { | |
722 | return !lport->enabled || *lport->enabled; | |
723 | } | |
724 | ||
5868eb24 BP |
725 | /* Updates the Logical_Flow and Multicast_Group tables in the OVN_SB database, |
726 | * constructing their contents based on the OVN_NB database. */ | |
bd39395f | 727 | static void |
5868eb24 BP |
728 | build_lflows(struct northd_context *ctx, struct hmap *datapaths, |
729 | struct hmap *ports) | |
bd39395f | 730 | { |
5868eb24 BP |
731 | struct hmap lflows = HMAP_INITIALIZER(&lflows); |
732 | struct hmap mcgroups = HMAP_INITIALIZER(&mcgroups); | |
bd39395f | 733 | |
5868eb24 BP |
734 | /* Ingress table 0: Admission control framework (priorities 0 and 100). */ |
735 | struct ovn_datapath *od; | |
736 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
bd39395f | 737 | /* Logical VLANs not supported. */ |
091e3af9 JP |
738 | ovn_lflow_add(&lflows, od, P_IN, S_IN_PORT_SEC, 100, "vlan.present", |
739 | "drop;"); | |
bd39395f BP |
740 | |
741 | /* Broadcast/multicast source address is invalid. */ | |
091e3af9 JP |
742 | ovn_lflow_add(&lflows, od, P_IN, S_IN_PORT_SEC, 100, "eth.src[40]", |
743 | "drop;"); | |
bd39395f | 744 | |
35060cdc BP |
745 | /* Port security flows have priority 50 (see below) and will continue |
746 | * to the next table if packet source is acceptable. */ | |
bd39395f BP |
747 | |
748 | /* Otherwise drop the packet. */ | |
091e3af9 | 749 | ovn_lflow_add(&lflows, od, P_IN, S_IN_PORT_SEC, 0, "1", "drop;"); |
bd39395f BP |
750 | } |
751 | ||
5868eb24 BP |
752 | /* Ingress table 0: Ingress port security (priority 50). */ |
753 | struct ovn_port *op; | |
754 | HMAP_FOR_EACH (op, key_node, ports) { | |
755 | struct ds match = DS_EMPTY_INITIALIZER; | |
756 | ds_put_cstr(&match, "inport == "); | |
757 | json_string_escape(op->key, &match); | |
758 | build_port_security("eth.src", | |
759 | op->nb->port_security, op->nb->n_port_security, | |
760 | &match); | |
091e3af9 | 761 | ovn_lflow_add(&lflows, op->od, P_IN, S_IN_PORT_SEC, 50, ds_cstr(&match), |
5868eb24 BP |
762 | lport_is_enabled(op->nb) ? "next;" : "drop;"); |
763 | ds_destroy(&match); | |
764 | } | |
445a266a | 765 | |
1b19bbb4 JP |
766 | /* Ingress table 1: ACLs (any priority). */ |
767 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
768 | for (size_t i = 0; i < od->nb->n_acls; i++) { | |
769 | const struct nbrec_acl *acl = od->nb->acls[i]; | |
770 | const char *action; | |
771 | ||
772 | if (strcmp(acl->direction, "from-lport")) { | |
773 | continue; | |
774 | } | |
775 | ||
776 | action = (!strcmp(acl->action, "allow") || | |
777 | !strcmp(acl->action, "allow-related")) | |
778 | ? "next;" : "drop;"; | |
779 | ovn_lflow_add(&lflows, od, P_IN, S_IN_ACL, acl->priority, | |
780 | acl->match, action); | |
781 | } | |
782 | } | |
783 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
784 | ovn_lflow_add(&lflows, od, P_IN, S_IN_ACL, 0, "1", "next;"); | |
785 | } | |
786 | ||
787 | /* Ingress table 2: Destination lookup, broadcast and multicast handling | |
5868eb24 BP |
788 | * (priority 100). */ |
789 | HMAP_FOR_EACH (op, key_node, ports) { | |
790 | if (lport_is_enabled(op->nb)) { | |
791 | ovn_multicast_add(&mcgroups, &mc_flood, op); | |
445a266a | 792 | } |
5868eb24 BP |
793 | } |
794 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
091e3af9 | 795 | ovn_lflow_add(&lflows, od, P_IN, S_IN_L2_LKUP, 100, "eth.dst[40]", |
5868eb24 | 796 | "outport = \""MC_FLOOD"\"; output;"); |
bd39395f | 797 | } |
bd39395f | 798 | |
1b19bbb4 | 799 | /* Ingress table 2: Destination lookup, unicast handling (priority 50), */ |
5868eb24 BP |
800 | HMAP_FOR_EACH (op, key_node, ports) { |
801 | for (size_t i = 0; i < op->nb->n_macs; i++) { | |
74ff3298 | 802 | struct eth_addr mac; |
5868eb24 | 803 | |
74ff3298 | 804 | if (eth_addr_from_string(op->nb->macs[i], &mac)) { |
5868eb24 BP |
805 | struct ds match, actions; |
806 | ||
807 | ds_init(&match); | |
808 | ds_put_format(&match, "eth.dst == %s", op->nb->macs[i]); | |
809 | ||
810 | ds_init(&actions); | |
811 | ds_put_cstr(&actions, "outport = "); | |
812 | json_string_escape(op->nb->name, &actions); | |
813 | ds_put_cstr(&actions, "; output;"); | |
091e3af9 | 814 | ovn_lflow_add(&lflows, op->od, P_IN, S_IN_L2_LKUP, 50, |
5868eb24 BP |
815 | ds_cstr(&match), ds_cstr(&actions)); |
816 | ds_destroy(&actions); | |
817 | ds_destroy(&match); | |
818 | } else if (!strcmp(op->nb->macs[i], "unknown")) { | |
819 | ovn_multicast_add(&mcgroups, &mc_unknown, op); | |
820 | op->od->has_unknown = true; | |
821 | } else { | |
822 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1); | |
445a266a | 823 | |
5868eb24 BP |
824 | VLOG_INFO_RL(&rl, "%s: invalid syntax '%s' in macs column", |
825 | op->nb->name, op->nb->macs[i]); | |
445a266a BP |
826 | } |
827 | } | |
bd39395f BP |
828 | } |
829 | ||
1b19bbb4 | 830 | /* Ingress table 2: Destination lookup for unknown MACs (priority 0). */ |
5868eb24 BP |
831 | HMAP_FOR_EACH (od, key_node, datapaths) { |
832 | if (od->has_unknown) { | |
091e3af9 | 833 | ovn_lflow_add(&lflows, od, P_IN, S_IN_L2_LKUP, 0, "1", |
5868eb24 | 834 | "outport = \""MC_UNKNOWN"\"; output;"); |
445a266a | 835 | } |
bd39395f BP |
836 | } |
837 | ||
5868eb24 BP |
838 | /* Egress table 0: ACLs (any priority). */ |
839 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
840 | for (size_t i = 0; i < od->nb->n_acls; i++) { | |
841 | const struct nbrec_acl *acl = od->nb->acls[i]; | |
842 | const char *action; | |
843 | ||
1b19bbb4 JP |
844 | if (strcmp(acl->direction, "to-lport")) { |
845 | continue; | |
846 | } | |
847 | ||
5868eb24 BP |
848 | action = (!strcmp(acl->action, "allow") || |
849 | !strcmp(acl->action, "allow-related")) | |
850 | ? "next;" : "drop;"; | |
091e3af9 JP |
851 | ovn_lflow_add(&lflows, od, P_OUT, S_OUT_ACL, acl->priority, |
852 | acl->match, action); | |
5868eb24 | 853 | } |
48f42f3a | 854 | } |
5868eb24 | 855 | HMAP_FOR_EACH (od, key_node, datapaths) { |
091e3af9 | 856 | ovn_lflow_add(&lflows, od, P_OUT, S_OUT_ACL, 0, "1", "next;"); |
48f42f3a RB |
857 | } |
858 | ||
5868eb24 BP |
859 | /* Egress table 1: Egress port security multicast/broadcast (priority |
860 | * 100). */ | |
861 | HMAP_FOR_EACH (od, key_node, datapaths) { | |
091e3af9 JP |
862 | ovn_lflow_add(&lflows, od, P_OUT, S_OUT_PORT_SEC, 100, "eth.dst[40]", |
863 | "output;"); | |
48f42f3a RB |
864 | } |
865 | ||
d770a830 BP |
866 | /* Egress table 1: Egress port security (priorities 50 and 150). |
867 | * | |
868 | * Priority 50 rules implement port security for enabled logical port. | |
869 | * | |
870 | * Priority 150 rules drop packets to disabled logical ports, so that they | |
871 | * don't even receive multicast or broadcast packets. */ | |
5868eb24 BP |
872 | HMAP_FOR_EACH (op, key_node, ports) { |
873 | struct ds match; | |
48f42f3a | 874 | |
5868eb24 BP |
875 | ds_init(&match); |
876 | ds_put_cstr(&match, "outport == "); | |
877 | json_string_escape(op->key, &match); | |
d770a830 BP |
878 | if (lport_is_enabled(op->nb)) { |
879 | build_port_security("eth.dst", | |
880 | op->nb->port_security, op->nb->n_port_security, | |
881 | &match); | |
882 | ovn_lflow_add(&lflows, op->od, P_OUT, S_OUT_PORT_SEC, 50, | |
883 | ds_cstr(&match), "output;"); | |
884 | } else { | |
885 | ovn_lflow_add(&lflows, op->od, P_OUT, S_OUT_PORT_SEC, 150, | |
886 | ds_cstr(&match), "drop;"); | |
887 | } | |
eb00399e | 888 | |
5868eb24 | 889 | ds_destroy(&match); |
eb00399e | 890 | } |
eb00399e | 891 | |
5868eb24 BP |
892 | /* Push changes to the Logical_Flow table to database. */ |
893 | const struct sbrec_logical_flow *sbflow, *next_sbflow; | |
894 | SBREC_LOGICAL_FLOW_FOR_EACH_SAFE (sbflow, next_sbflow, ctx->ovnsb_idl) { | |
895 | struct ovn_datapath *od | |
896 | = ovn_datapath_from_sbrec(datapaths, sbflow->logical_datapath); | |
897 | if (!od) { | |
898 | sbrec_logical_flow_delete(sbflow); | |
899 | continue; | |
eb00399e | 900 | } |
eb00399e | 901 | |
5868eb24 BP |
902 | struct ovn_lflow *lflow = ovn_lflow_find( |
903 | &lflows, od, (!strcmp(sbflow->pipeline, "ingress") ? P_IN : P_OUT), | |
904 | sbflow->table_id, sbflow->priority, | |
905 | sbflow->match, sbflow->actions); | |
906 | if (lflow) { | |
907 | ovn_lflow_destroy(&lflows, lflow); | |
908 | } else { | |
909 | sbrec_logical_flow_delete(sbflow); | |
4edcdcf4 RB |
910 | } |
911 | } | |
5868eb24 BP |
912 | struct ovn_lflow *lflow, *next_lflow; |
913 | HMAP_FOR_EACH_SAFE (lflow, next_lflow, hmap_node, &lflows) { | |
914 | sbflow = sbrec_logical_flow_insert(ctx->ovnsb_txn); | |
915 | sbrec_logical_flow_set_logical_datapath(sbflow, lflow->od->sb); | |
916 | sbrec_logical_flow_set_pipeline( | |
917 | sbflow, lflow->pipeline == P_IN ? "ingress" : "egress"); | |
918 | sbrec_logical_flow_set_table_id(sbflow, lflow->table_id); | |
919 | sbrec_logical_flow_set_priority(sbflow, lflow->priority); | |
920 | sbrec_logical_flow_set_match(sbflow, lflow->match); | |
921 | sbrec_logical_flow_set_actions(sbflow, lflow->actions); | |
091e3af9 | 922 | |
aaf881c6 BP |
923 | const struct smap ids = SMAP_CONST1( |
924 | &ids, "stage-name", | |
925 | (lflow->pipeline == P_IN | |
926 | ? ingress_stage_to_str(lflow->table_id) | |
927 | : egress_stage_to_str(lflow->table_id))); | |
928 | sbrec_logical_flow_set_external_ids(sbflow, &ids); | |
091e3af9 | 929 | |
5868eb24 | 930 | ovn_lflow_destroy(&lflows, lflow); |
eb00399e | 931 | } |
5868eb24 BP |
932 | hmap_destroy(&lflows); |
933 | ||
934 | /* Push changes to the Multicast_Group table to database. */ | |
935 | const struct sbrec_multicast_group *sbmc, *next_sbmc; | |
936 | SBREC_MULTICAST_GROUP_FOR_EACH_SAFE (sbmc, next_sbmc, ctx->ovnsb_idl) { | |
937 | struct ovn_datapath *od = ovn_datapath_from_sbrec(datapaths, | |
938 | sbmc->datapath); | |
939 | if (!od) { | |
940 | sbrec_multicast_group_delete(sbmc); | |
941 | continue; | |
942 | } | |
eb00399e | 943 | |
5868eb24 BP |
944 | struct multicast_group group = { .name = sbmc->name, |
945 | .key = sbmc->tunnel_key }; | |
946 | struct ovn_multicast *mc = ovn_multicast_find(&mcgroups, od, &group); | |
947 | if (mc) { | |
948 | ovn_multicast_update_sbrec(mc, sbmc); | |
949 | ovn_multicast_destroy(&mcgroups, mc); | |
950 | } else { | |
951 | sbrec_multicast_group_delete(sbmc); | |
952 | } | |
953 | } | |
954 | struct ovn_multicast *mc, *next_mc; | |
955 | HMAP_FOR_EACH_SAFE (mc, next_mc, hmap_node, &mcgroups) { | |
956 | sbmc = sbrec_multicast_group_insert(ctx->ovnsb_txn); | |
957 | sbrec_multicast_group_set_datapath(sbmc, mc->datapath->sb); | |
958 | sbrec_multicast_group_set_name(sbmc, mc->group->name); | |
959 | sbrec_multicast_group_set_tunnel_key(sbmc, mc->group->key); | |
960 | ovn_multicast_update_sbrec(mc, sbmc); | |
961 | ovn_multicast_destroy(&mcgroups, mc); | |
4edcdcf4 | 962 | } |
5868eb24 | 963 | hmap_destroy(&mcgroups); |
4edcdcf4 | 964 | } |
5868eb24 | 965 | \f |
4edcdcf4 | 966 | static void |
2e2762d4 | 967 | ovnnb_db_changed(struct northd_context *ctx) |
4edcdcf4 | 968 | { |
c29734fc | 969 | VLOG_DBG("ovn-nb db contents have changed."); |
4edcdcf4 | 970 | |
5868eb24 BP |
971 | struct hmap datapaths, ports; |
972 | build_datapaths(ctx, &datapaths); | |
973 | build_ports(ctx, &datapaths, &ports); | |
974 | build_lflows(ctx, &datapaths, &ports); | |
975 | ||
976 | struct ovn_datapath *dp, *next_dp; | |
977 | HMAP_FOR_EACH_SAFE (dp, next_dp, key_node, &datapaths) { | |
978 | ovn_datapath_destroy(&datapaths, dp); | |
979 | } | |
980 | hmap_destroy(&datapaths); | |
981 | ||
982 | struct ovn_port *port, *next_port; | |
983 | HMAP_FOR_EACH_SAFE (port, next_port, key_node, &ports) { | |
984 | ovn_port_destroy(&ports, port); | |
985 | } | |
986 | hmap_destroy(&ports); | |
ac0630a2 RB |
987 | } |
988 | ||
f93818dd RB |
989 | /* |
990 | * The only change we get notified about is if the 'chassis' column of the | |
dcda6e0d BP |
991 | * 'Port_Binding' table changes. When this column is not empty, it means we |
992 | * need to set the corresponding logical port as 'up' in the northbound DB. | |
f93818dd | 993 | */ |
ac0630a2 | 994 | static void |
2e2762d4 | 995 | ovnsb_db_changed(struct northd_context *ctx) |
ac0630a2 | 996 | { |
fc3113bc | 997 | struct hmap lports_hmap; |
5868eb24 BP |
998 | const struct sbrec_port_binding *sb; |
999 | const struct nbrec_logical_port *nb; | |
fc3113bc RB |
1000 | |
1001 | struct lport_hash_node { | |
1002 | struct hmap_node node; | |
5868eb24 | 1003 | const struct nbrec_logical_port *nb; |
fc3113bc | 1004 | } *hash_node, *hash_node_next; |
f93818dd RB |
1005 | |
1006 | VLOG_DBG("Recalculating port up states for ovn-nb db."); | |
1007 | ||
fc3113bc | 1008 | hmap_init(&lports_hmap); |
f93818dd | 1009 | |
5868eb24 | 1010 | NBREC_LOGICAL_PORT_FOR_EACH(nb, ctx->ovnnb_idl) { |
fc3113bc | 1011 | hash_node = xzalloc(sizeof *hash_node); |
5868eb24 BP |
1012 | hash_node->nb = nb; |
1013 | hmap_insert(&lports_hmap, &hash_node->node, hash_string(nb->name, 0)); | |
fc3113bc RB |
1014 | } |
1015 | ||
5868eb24 BP |
1016 | SBREC_PORT_BINDING_FOR_EACH(sb, ctx->ovnsb_idl) { |
1017 | nb = NULL; | |
fc3113bc | 1018 | HMAP_FOR_EACH_WITH_HASH(hash_node, node, |
5868eb24 BP |
1019 | hash_string(sb->logical_port, 0), |
1020 | &lports_hmap) { | |
1021 | if (!strcmp(sb->logical_port, hash_node->nb->name)) { | |
1022 | nb = hash_node->nb; | |
fc3113bc RB |
1023 | break; |
1024 | } | |
f93818dd RB |
1025 | } |
1026 | ||
5868eb24 | 1027 | if (!nb) { |
dcda6e0d | 1028 | /* The logical port doesn't exist for this port binding. This can |
2e2762d4 | 1029 | * happen under normal circumstances when ovn-northd hasn't gotten |
dcda6e0d | 1030 | * around to pruning the Port_Binding yet. */ |
f93818dd RB |
1031 | continue; |
1032 | } | |
1033 | ||
5868eb24 | 1034 | if (sb->chassis && (!nb->up || !*nb->up)) { |
f93818dd | 1035 | bool up = true; |
5868eb24 BP |
1036 | nbrec_logical_port_set_up(nb, &up, 1); |
1037 | } else if (!sb->chassis && (!nb->up || *nb->up)) { | |
f93818dd | 1038 | bool up = false; |
5868eb24 | 1039 | nbrec_logical_port_set_up(nb, &up, 1); |
f93818dd RB |
1040 | } |
1041 | } | |
fc3113bc RB |
1042 | |
1043 | HMAP_FOR_EACH_SAFE(hash_node, hash_node_next, node, &lports_hmap) { | |
1044 | hmap_remove(&lports_hmap, &hash_node->node); | |
1045 | free(hash_node); | |
1046 | } | |
1047 | hmap_destroy(&lports_hmap); | |
ac0630a2 RB |
1048 | } |
1049 | \f | |
45f98d4c RB |
1050 | |
1051 | static char *default_db_; | |
1052 | ||
ac0630a2 RB |
1053 | static const char * |
1054 | default_db(void) | |
1055 | { | |
45f98d4c RB |
1056 | if (!default_db_) { |
1057 | default_db_ = xasprintf("unix:%s/db.sock", ovs_rundir()); | |
ac0630a2 | 1058 | } |
45f98d4c | 1059 | return default_db_; |
ac0630a2 RB |
1060 | } |
1061 | ||
1062 | static void | |
1063 | parse_options(int argc OVS_UNUSED, char *argv[] OVS_UNUSED) | |
1064 | { | |
1065 | enum { | |
67d9b930 | 1066 | DAEMON_OPTION_ENUMS, |
ac0630a2 RB |
1067 | VLOG_OPTION_ENUMS, |
1068 | }; | |
1069 | static const struct option long_options[] = { | |
ec78987f | 1070 | {"ovnsb-db", required_argument, NULL, 'd'}, |
ac0630a2 RB |
1071 | {"ovnnb-db", required_argument, NULL, 'D'}, |
1072 | {"help", no_argument, NULL, 'h'}, | |
1073 | {"options", no_argument, NULL, 'o'}, | |
1074 | {"version", no_argument, NULL, 'V'}, | |
67d9b930 | 1075 | DAEMON_LONG_OPTIONS, |
ac0630a2 RB |
1076 | VLOG_LONG_OPTIONS, |
1077 | STREAM_SSL_LONG_OPTIONS, | |
1078 | {NULL, 0, NULL, 0}, | |
1079 | }; | |
1080 | char *short_options = ovs_cmdl_long_options_to_short_options(long_options); | |
1081 | ||
1082 | for (;;) { | |
1083 | int c; | |
1084 | ||
1085 | c = getopt_long(argc, argv, short_options, long_options, NULL); | |
1086 | if (c == -1) { | |
1087 | break; | |
1088 | } | |
1089 | ||
1090 | switch (c) { | |
67d9b930 | 1091 | DAEMON_OPTION_HANDLERS; |
ac0630a2 RB |
1092 | VLOG_OPTION_HANDLERS; |
1093 | STREAM_SSL_OPTION_HANDLERS; | |
1094 | ||
1095 | case 'd': | |
ec78987f | 1096 | ovnsb_db = optarg; |
ac0630a2 RB |
1097 | break; |
1098 | ||
1099 | case 'D': | |
1100 | ovnnb_db = optarg; | |
1101 | break; | |
1102 | ||
1103 | case 'h': | |
1104 | usage(); | |
1105 | exit(EXIT_SUCCESS); | |
1106 | ||
1107 | case 'o': | |
1108 | ovs_cmdl_print_options(long_options); | |
1109 | exit(EXIT_SUCCESS); | |
1110 | ||
1111 | case 'V': | |
1112 | ovs_print_version(0, 0); | |
1113 | exit(EXIT_SUCCESS); | |
1114 | ||
1115 | default: | |
1116 | break; | |
1117 | } | |
1118 | } | |
1119 | ||
ec78987f JP |
1120 | if (!ovnsb_db) { |
1121 | ovnsb_db = default_db(); | |
ac0630a2 RB |
1122 | } |
1123 | ||
1124 | if (!ovnnb_db) { | |
1125 | ovnnb_db = default_db(); | |
1126 | } | |
1127 | ||
1128 | free(short_options); | |
1129 | } | |
1130 | ||
5868eb24 BP |
1131 | static void |
1132 | add_column_noalert(struct ovsdb_idl *idl, | |
1133 | const struct ovsdb_idl_column *column) | |
1134 | { | |
1135 | ovsdb_idl_add_column(idl, column); | |
1136 | ovsdb_idl_omit_alert(idl, column); | |
1137 | } | |
1138 | ||
ac0630a2 RB |
1139 | int |
1140 | main(int argc, char *argv[]) | |
1141 | { | |
1142 | extern struct vlog_module VLM_reconnect; | |
ec78987f | 1143 | struct ovsdb_idl *ovnnb_idl, *ovnsb_idl; |
ac0630a2 RB |
1144 | unsigned int ovnnb_seqno, ovn_seqno; |
1145 | int res = EXIT_SUCCESS; | |
2e2762d4 | 1146 | struct northd_context ctx = { |
3c78b3ca | 1147 | .ovnsb_txn = NULL, |
f93818dd RB |
1148 | }; |
1149 | bool ovnnb_changes_pending = false; | |
1150 | bool ovn_changes_pending = false; | |
7b303ff9 AW |
1151 | struct unixctl_server *unixctl; |
1152 | int retval; | |
1153 | bool exiting; | |
ac0630a2 RB |
1154 | |
1155 | fatal_ignore_sigpipe(); | |
1156 | set_program_name(argv[0]); | |
485f0696 | 1157 | service_start(&argc, &argv); |
ac0630a2 RB |
1158 | vlog_set_levels(NULL, VLF_CONSOLE, VLL_WARN); |
1159 | vlog_set_levels(&VLM_reconnect, VLF_ANY_DESTINATION, VLL_WARN); | |
1160 | parse_options(argc, argv); | |
67d9b930 | 1161 | |
7b303ff9 AW |
1162 | daemonize_start(); |
1163 | ||
1164 | retval = unixctl_server_create(NULL, &unixctl); | |
1165 | if (retval) { | |
1166 | exit(EXIT_FAILURE); | |
1167 | } | |
1168 | unixctl_command_register("exit", "", 0, 0, ovn_northd_exit, &exiting); | |
1169 | ||
1170 | daemonize_complete(); | |
67d9b930 | 1171 | |
ac0630a2 | 1172 | nbrec_init(); |
ec78987f | 1173 | sbrec_init(); |
ac0630a2 RB |
1174 | |
1175 | /* We want to detect all changes to the ovn-nb db. */ | |
f93818dd RB |
1176 | ctx.ovnnb_idl = ovnnb_idl = ovsdb_idl_create(ovnnb_db, |
1177 | &nbrec_idl_class, true, true); | |
ac0630a2 | 1178 | |
ec78987f JP |
1179 | ctx.ovnsb_idl = ovnsb_idl = ovsdb_idl_create(ovnsb_db, |
1180 | &sbrec_idl_class, false, true); | |
5868eb24 BP |
1181 | |
1182 | ovsdb_idl_add_table(ovnsb_idl, &sbrec_table_logical_flow); | |
1183 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_logical_datapath); | |
1184 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_pipeline); | |
1185 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_table_id); | |
1186 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_priority); | |
1187 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_match); | |
1188 | add_column_noalert(ovnsb_idl, &sbrec_logical_flow_col_actions); | |
1189 | ||
1190 | ovsdb_idl_add_table(ovnsb_idl, &sbrec_table_multicast_group); | |
1191 | add_column_noalert(ovnsb_idl, &sbrec_multicast_group_col_datapath); | |
1192 | add_column_noalert(ovnsb_idl, &sbrec_multicast_group_col_tunnel_key); | |
1193 | add_column_noalert(ovnsb_idl, &sbrec_multicast_group_col_name); | |
1194 | add_column_noalert(ovnsb_idl, &sbrec_multicast_group_col_ports); | |
1195 | ||
1196 | ovsdb_idl_add_table(ovnsb_idl, &sbrec_table_datapath_binding); | |
1197 | add_column_noalert(ovnsb_idl, &sbrec_datapath_binding_col_tunnel_key); | |
1198 | add_column_noalert(ovnsb_idl, &sbrec_datapath_binding_col_external_ids); | |
1199 | ||
dcda6e0d | 1200 | ovsdb_idl_add_table(ovnsb_idl, &sbrec_table_port_binding); |
5868eb24 BP |
1201 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_datapath); |
1202 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_logical_port); | |
1203 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_tunnel_key); | |
1204 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_parent_port); | |
1205 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_tag); | |
1206 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_type); | |
1207 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_options); | |
1208 | add_column_noalert(ovnsb_idl, &sbrec_port_binding_col_mac); | |
dcda6e0d | 1209 | ovsdb_idl_add_column(ovnsb_idl, &sbrec_port_binding_col_chassis); |
ac0630a2 RB |
1210 | |
1211 | /* | |
1212 | * The loop here just runs the IDL in a loop waiting for the seqno to | |
1213 | * change, which indicates that the contents of the db have changed. | |
1214 | * | |
a0149f47 JP |
1215 | * If the contents of the ovn-nb db change, the mappings to the ovn-sb |
1216 | * db must be recalculated. | |
ac0630a2 | 1217 | * |
a0149f47 | 1218 | * If the contents of the ovn-sb db change, it means the 'up' state of |
91ae2065 | 1219 | * a port may have changed, as that's the only type of change ovn-northd is |
a0149f47 | 1220 | * watching for. |
ac0630a2 RB |
1221 | */ |
1222 | ||
1223 | ovnnb_seqno = ovsdb_idl_get_seqno(ovnnb_idl); | |
ec78987f | 1224 | ovn_seqno = ovsdb_idl_get_seqno(ovnsb_idl); |
7b303ff9 AW |
1225 | exiting = false; |
1226 | while (!exiting) { | |
ac0630a2 | 1227 | ovsdb_idl_run(ovnnb_idl); |
ec78987f | 1228 | ovsdb_idl_run(ovnsb_idl); |
7b303ff9 | 1229 | unixctl_server_run(unixctl); |
ac0630a2 RB |
1230 | |
1231 | if (!ovsdb_idl_is_alive(ovnnb_idl)) { | |
1232 | int retval = ovsdb_idl_get_last_error(ovnnb_idl); | |
1233 | VLOG_ERR("%s: database connection failed (%s)", | |
1234 | ovnnb_db, ovs_retval_to_string(retval)); | |
1235 | res = EXIT_FAILURE; | |
1236 | break; | |
1237 | } | |
1238 | ||
ec78987f JP |
1239 | if (!ovsdb_idl_is_alive(ovnsb_idl)) { |
1240 | int retval = ovsdb_idl_get_last_error(ovnsb_idl); | |
ac0630a2 | 1241 | VLOG_ERR("%s: database connection failed (%s)", |
ec78987f | 1242 | ovnsb_db, ovs_retval_to_string(retval)); |
ac0630a2 RB |
1243 | res = EXIT_FAILURE; |
1244 | break; | |
1245 | } | |
1246 | ||
1247 | if (ovnnb_seqno != ovsdb_idl_get_seqno(ovnnb_idl)) { | |
1248 | ovnnb_seqno = ovsdb_idl_get_seqno(ovnnb_idl); | |
f93818dd | 1249 | ovnnb_changes_pending = true; |
ac0630a2 RB |
1250 | } |
1251 | ||
ec78987f JP |
1252 | if (ovn_seqno != ovsdb_idl_get_seqno(ovnsb_idl)) { |
1253 | ovn_seqno = ovsdb_idl_get_seqno(ovnsb_idl); | |
f93818dd RB |
1254 | ovn_changes_pending = true; |
1255 | } | |
1256 | ||
1257 | /* | |
1258 | * If there are any pending changes, we delay recalculating the | |
1259 | * necessary updates until after an existing transaction finishes. | |
91ae2065 RB |
1260 | * This avoids the possibility of rapid updates causing ovn-northd to |
1261 | * never be able to successfully make the corresponding updates to the | |
1262 | * other db. Instead, pending changes are batched up until the next | |
1263 | * time we get a chance to calculate the new state and apply it. | |
f93818dd RB |
1264 | */ |
1265 | ||
3c78b3ca | 1266 | if (ovnnb_changes_pending && !ctx.ovnsb_txn) { |
f93818dd RB |
1267 | /* |
1268 | * The OVN-nb db contents have changed, so create a transaction for | |
a0149f47 | 1269 | * updating the OVN-sb DB. |
f93818dd | 1270 | */ |
3c78b3ca | 1271 | ctx.ovnsb_txn = ovsdb_idl_txn_create(ctx.ovnsb_idl); |
5da82071 | 1272 | ovsdb_idl_txn_add_comment(ctx.ovnsb_txn, |
91ae2065 | 1273 | "ovn-northd: northbound db changed"); |
f93818dd RB |
1274 | ovnnb_db_changed(&ctx); |
1275 | ovnnb_changes_pending = false; | |
1276 | } | |
1277 | ||
1278 | if (ovn_changes_pending && !ctx.ovnnb_txn) { | |
1279 | /* | |
a0149f47 | 1280 | * The OVN-sb db contents have changed, so create a transaction for |
f93818dd RB |
1281 | * updating the northbound DB. |
1282 | */ | |
1283 | ctx.ovnnb_txn = ovsdb_idl_txn_create(ctx.ovnnb_idl); | |
5da82071 | 1284 | ovsdb_idl_txn_add_comment(ctx.ovnnb_txn, |
91ae2065 | 1285 | "ovn-northd: southbound db changed"); |
ec78987f | 1286 | ovnsb_db_changed(&ctx); |
f93818dd RB |
1287 | ovn_changes_pending = false; |
1288 | } | |
1289 | ||
1290 | if (ctx.ovnnb_txn) { | |
1291 | enum ovsdb_idl_txn_status txn_status; | |
1292 | txn_status = ovsdb_idl_txn_commit(ctx.ovnnb_txn); | |
1293 | switch (txn_status) { | |
1294 | case TXN_UNCOMMITTED: | |
1295 | case TXN_INCOMPLETE: | |
1296 | /* Come back around and try to commit this transaction again */ | |
1297 | break; | |
1298 | case TXN_ABORTED: | |
1299 | case TXN_TRY_AGAIN: | |
1300 | case TXN_NOT_LOCKED: | |
1301 | case TXN_ERROR: | |
1302 | /* Something went wrong, so try creating a new transaction. */ | |
1303 | ovn_changes_pending = true; | |
1304 | case TXN_UNCHANGED: | |
1305 | case TXN_SUCCESS: | |
1306 | ovsdb_idl_txn_destroy(ctx.ovnnb_txn); | |
1307 | ctx.ovnnb_txn = NULL; | |
1308 | } | |
1309 | } | |
1310 | ||
3c78b3ca | 1311 | if (ctx.ovnsb_txn) { |
f93818dd | 1312 | enum ovsdb_idl_txn_status txn_status; |
3c78b3ca | 1313 | txn_status = ovsdb_idl_txn_commit(ctx.ovnsb_txn); |
f93818dd RB |
1314 | switch (txn_status) { |
1315 | case TXN_UNCOMMITTED: | |
1316 | case TXN_INCOMPLETE: | |
1317 | /* Come back around and try to commit this transaction again */ | |
1318 | break; | |
1319 | case TXN_ABORTED: | |
1320 | case TXN_TRY_AGAIN: | |
1321 | case TXN_NOT_LOCKED: | |
1322 | case TXN_ERROR: | |
1323 | /* Something went wrong, so try creating a new transaction. */ | |
1324 | ovnnb_changes_pending = true; | |
1325 | case TXN_UNCHANGED: | |
1326 | case TXN_SUCCESS: | |
3c78b3ca JP |
1327 | ovsdb_idl_txn_destroy(ctx.ovnsb_txn); |
1328 | ctx.ovnsb_txn = NULL; | |
f93818dd | 1329 | } |
ac0630a2 RB |
1330 | } |
1331 | ||
1332 | if (ovnnb_seqno == ovsdb_idl_get_seqno(ovnnb_idl) && | |
ec78987f | 1333 | ovn_seqno == ovsdb_idl_get_seqno(ovnsb_idl)) { |
ac0630a2 | 1334 | ovsdb_idl_wait(ovnnb_idl); |
ec78987f | 1335 | ovsdb_idl_wait(ovnsb_idl); |
f93818dd RB |
1336 | if (ctx.ovnnb_txn) { |
1337 | ovsdb_idl_txn_wait(ctx.ovnnb_txn); | |
1338 | } | |
3c78b3ca JP |
1339 | if (ctx.ovnsb_txn) { |
1340 | ovsdb_idl_txn_wait(ctx.ovnsb_txn); | |
f93818dd | 1341 | } |
7b303ff9 AW |
1342 | unixctl_server_wait(unixctl); |
1343 | if (exiting) { | |
1344 | poll_immediate_wake(); | |
1345 | } | |
ac0630a2 RB |
1346 | poll_block(); |
1347 | } | |
485f0696 GS |
1348 | if (should_service_stop()) { |
1349 | exiting = true; | |
1350 | } | |
ac0630a2 RB |
1351 | } |
1352 | ||
7b303ff9 | 1353 | unixctl_server_destroy(unixctl); |
ec78987f | 1354 | ovsdb_idl_destroy(ovnsb_idl); |
ac0630a2 | 1355 | ovsdb_idl_destroy(ovnnb_idl); |
485f0696 | 1356 | service_stop(); |
ac0630a2 | 1357 | |
45f98d4c RB |
1358 | free(default_db_); |
1359 | ||
ac0630a2 RB |
1360 | exit(res); |
1361 | } | |
7b303ff9 AW |
1362 | |
1363 | static void | |
1364 | ovn_northd_exit(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
1365 | const char *argv[] OVS_UNUSED, void *exiting_) | |
1366 | { | |
1367 | bool *exiting = exiting_; | |
1368 | *exiting = true; | |
1369 | ||
1370 | unixctl_command_reply(conn, NULL); | |
1371 | } |