2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
34 #include <sys/ioctl.h>
36 #include <sys/queue.h>
37 #include <sys/types.h>
40 #include <net/pfvar.h>
41 #include <netinet/in.h>
43 #include <netpfil/pf/pf_nl.h>
44 #include <netlink/netlink.h>
45 #include <netlink/netlink_generic.h>
46 #include <netlink/netlink_snl.h>
47 #include <netlink/netlink_snl_generic.h>
48 #include <netlink/netlink_snl_route.h>
58 const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = {
64 static int _pfctl_clear_states(int , const struct pfctl_kill *,
65 unsigned int *, uint64_t);
68 pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl)
75 data = nvlist_pack(*nvl, &nvlen);
80 nv.data = malloc(size);
81 if (nv.data == NULL) {
86 memcpy(nv.data, data, nvlen);
91 ret = ioctl(dev, cmd, &nv);
92 if (ret == -1 && errno == ENOSPC) {
102 *nvl = nvlist_unpack(nv.data, nv.len, 0);
119 pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems,
120 uint8_t *numbers, size_t *nelems)
125 tmp = nvlist_get_number_array(nvl, name, &elems);
126 assert(elems <= maxelems);
128 for (size_t i = 0; i < elems; i++)
136 pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems,
137 uint16_t *numbers, size_t *nelems)
142 tmp = nvlist_get_number_array(nvl, name, &elems);
143 assert(elems <= maxelems);
145 for (size_t i = 0; i < elems; i++)
153 pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems,
154 uint32_t *numbers, size_t *nelems)
159 tmp = nvlist_get_number_array(nvl, name, &elems);
161 for (size_t i = 0; i < elems && i < maxelems; i++)
169 pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems,
170 uint64_t *numbers, size_t *nelems)
175 tmp = nvlist_get_number_array(nvl, name, &elems);
176 assert(elems <= maxelems);
178 for (size_t i = 0; i < elems; i++)
186 pfctl_startstop(int start)
188 struct snl_state ss = {};
189 struct snl_errmsg_data e = {};
190 struct snl_writer nw;
191 struct nlmsghdr *hdr;
195 snl_init(&ss, NETLINK_GENERIC);
196 family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME);
200 snl_init_writer(&ss, &nw);
201 hdr = snl_create_genl_msg_request(&nw, family_id,
202 start ? PFNL_CMD_START : PFNL_CMD_STOP);
204 hdr = snl_finalize_msg(&nw);
207 seq_id = hdr->nlmsg_seq;
209 snl_send_message(&ss, hdr);
211 while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
218 _pfctl_get_status_counters(const nvlist_t *nvl,
219 struct pfctl_status_counters *counters)
221 const uint64_t *ids, *counts;
222 const char *const *names;
223 size_t id_len, counter_len, names_len;
225 ids = nvlist_get_number_array(nvl, "ids", &id_len);
226 counts = nvlist_get_number_array(nvl, "counters", &counter_len);
227 names = nvlist_get_string_array(nvl, "names", &names_len);
228 assert(id_len == counter_len);
229 assert(counter_len == names_len);
231 TAILQ_INIT(counters);
233 for (size_t i = 0; i < id_len; i++) {
234 struct pfctl_status_counter *c;
236 c = malloc(sizeof(*c));
241 c->counter = counts[i];
242 c->name = strdup(names[i]);
244 TAILQ_INSERT_TAIL(counters, c, entry);
248 struct pfctl_status *
249 pfctl_get_status(int dev)
251 struct pfctl_status *status;
256 status = calloc(1, sizeof(*status));
260 nvl = nvlist_create(0);
262 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) {
268 status->running = nvlist_get_bool(nvl, "running");
269 status->since = nvlist_get_number(nvl, "since");
270 status->debug = nvlist_get_number(nvl, "debug");
271 status->hostid = ntohl(nvlist_get_number(nvl, "hostid"));
272 status->states = nvlist_get_number(nvl, "states");
273 status->src_nodes = nvlist_get_number(nvl, "src_nodes");
274 status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active");
275 status->reass = nvlist_get_number(nvl, "reass");
277 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"),
279 chksum = nvlist_get_binary(nvl, "chksum", &len);
280 assert(len == PF_MD5_DIGEST_LENGTH);
281 memcpy(status->pf_chksum, chksum, len);
283 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"),
285 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"),
287 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"),
289 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"),
292 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 3,
293 (uint64_t *)status->pcounters, NULL);
294 pf_nvuint_64_array(nvl, "bcounters", 2 * 2,
295 (uint64_t *)status->bcounters, NULL);
303 _pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id)
305 struct pfctl_status_counter *c;
307 TAILQ_FOREACH(c, counters, entry) {
316 pfctl_status_counter(struct pfctl_status *status, int id)
318 return (_pfctl_status_counter(&status->counters, id));
322 pfctl_status_lcounter(struct pfctl_status *status, int id)
324 return (_pfctl_status_counter(&status->lcounters, id));
328 pfctl_status_fcounter(struct pfctl_status *status, int id)
330 return (_pfctl_status_counter(&status->fcounters, id));
334 pfctl_status_scounter(struct pfctl_status *status, int id)
336 return (_pfctl_status_counter(&status->scounters, id));
340 pfctl_free_status(struct pfctl_status *status)
342 struct pfctl_status_counter *c, *tmp;
347 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) {
351 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) {
355 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) {
359 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) {
368 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name,
369 const struct pf_addr *addr)
371 nvlist_t *nvl = nvlist_create(0);
373 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr));
375 nvlist_add_nvlist(nvparent, name, nvl);
380 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr)
385 data = nvlist_get_binary(nvl, "addr", &len);
386 assert(len == sizeof(struct pf_addr));
387 memcpy(addr, data, len);
391 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name,
392 const struct pf_addr_wrap *addr)
394 nvlist_t *nvl = nvlist_create(0);
396 nvlist_add_number(nvl, "type", addr->type);
397 nvlist_add_number(nvl, "iflags", addr->iflags);
398 if (addr->type == PF_ADDR_DYNIFTL)
399 nvlist_add_string(nvl, "ifname", addr->v.ifname);
400 if (addr->type == PF_ADDR_TABLE)
401 nvlist_add_string(nvl, "tblname", addr->v.tblname);
402 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr);
403 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask);
405 nvlist_add_nvlist(nvparent, name, nvl);
410 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr)
412 bzero(addr, sizeof(*addr));
414 addr->type = nvlist_get_number(nvl, "type");
415 addr->iflags = nvlist_get_number(nvl, "iflags");
416 if (addr->type == PF_ADDR_DYNIFTL) {
417 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"),
419 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt");
421 if (addr->type == PF_ADDR_TABLE) {
422 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"),
424 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt");
427 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr);
428 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask);
432 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name,
433 const struct pf_rule_addr *addr)
436 nvlist_t *nvl = nvlist_create(0);
438 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr);
439 ports[0] = addr->port[0];
440 ports[1] = addr->port[1];
441 nvlist_add_number_array(nvl, "port", ports, 2);
442 nvlist_add_number(nvl, "neg", addr->neg);
443 nvlist_add_number(nvl, "port_op", addr->port_op);
445 nvlist_add_nvlist(nvparent, name, nvl);
450 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr)
452 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr);
454 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL);
455 addr->neg = nvlist_get_number(nvl, "neg");
456 addr->port_op = nvlist_get_number(nvl, "port_op");
460 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape)
462 mape->offset = nvlist_get_number(nvl, "offset");
463 mape->psidlen = nvlist_get_number(nvl, "psidlen");
464 mape->psid = nvlist_get_number(nvl, "psid");
468 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool)
473 data = nvlist_get_binary(nvl, "key", &len);
474 assert(len == sizeof(pool->key));
475 memcpy(&pool->key, data, len);
477 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter);
479 pool->tblidx = nvlist_get_number(nvl, "tblidx");
480 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL);
481 pool->opts = nvlist_get_number(nvl, "opts");
483 if (nvlist_exists_nvlist(nvl, "mape"))
484 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape);
488 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid)
490 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL);
491 uid->op = nvlist_get_number(nvl, "op");
495 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule)
497 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr);
498 rule->divert.port = nvlist_get_number(nvl, "port");
502 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule)
504 const uint64_t *skip;
505 const char *const *labels;
506 size_t skipcount, labelcount;
508 rule->nr = nvlist_get_number(nvl, "nr");
510 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src);
511 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst);
513 skip = nvlist_get_number_array(nvl, "skip", &skipcount);
515 assert(skipcount == PF_SKIP_COUNT);
516 for (int i = 0; i < PF_SKIP_COUNT; i++)
517 rule->skip[i].nr = skip[i];
519 labels = nvlist_get_string_array(nvl, "labels", &labelcount);
520 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
521 for (size_t i = 0; i < labelcount; i++)
522 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
523 rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
524 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
525 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
526 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE);
527 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
529 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
532 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"),
535 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool);
537 rule->evaluations = nvlist_get_number(nvl, "evaluations");
538 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL);
539 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL);
541 if (nvlist_exists_number(nvl, "timestamp")) {
542 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
545 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint");
547 rule->rtableid = nvlist_get_number(nvl, "rtableid");
548 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL);
549 rule->max_states = nvlist_get_number(nvl, "max_states");
550 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes");
551 rule->max_src_states = nvlist_get_number(nvl, "max_src_states");
552 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn");
553 rule->max_src_conn_rate.limit =
554 nvlist_get_number(nvl, "max_src_conn_rate.limit");
555 rule->max_src_conn_rate.seconds =
556 nvlist_get_number(nvl, "max_src_conn_rate.seconds");
557 rule->qid = nvlist_get_number(nvl, "qid");
558 rule->pqid = nvlist_get_number(nvl, "pqid");
559 rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
560 rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe");
561 rule->free_flags = nvlist_get_number(nvl, "dnflags");
562 rule->prob = nvlist_get_number(nvl, "prob");
563 rule->cuid = nvlist_get_number(nvl, "cuid");
564 rule->cpid = nvlist_get_number(nvl, "cpid");
566 rule->return_icmp = nvlist_get_number(nvl, "return_icmp");
567 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6");
568 rule->max_mss = nvlist_get_number(nvl, "max_mss");
569 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags");
571 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid);
572 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"),
573 (struct pf_rule_uid *)&rule->gid);
575 rule->rule_flag = nvlist_get_number(nvl, "rule_flag");
576 rule->action = nvlist_get_number(nvl, "action");
577 rule->direction = nvlist_get_number(nvl, "direction");
578 rule->log = nvlist_get_number(nvl, "log");
579 rule->logif = nvlist_get_number(nvl, "logif");
580 rule->quick = nvlist_get_number(nvl, "quick");
581 rule->ifnot = nvlist_get_number(nvl, "ifnot");
582 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not");
583 rule->natpass = nvlist_get_number(nvl, "natpass");
585 rule->keep_state = nvlist_get_number(nvl, "keep_state");
586 rule->af = nvlist_get_number(nvl, "af");
587 rule->proto = nvlist_get_number(nvl, "proto");
588 rule->type = nvlist_get_number(nvl, "type");
589 rule->code = nvlist_get_number(nvl, "code");
590 rule->flags = nvlist_get_number(nvl, "flags");
591 rule->flagset = nvlist_get_number(nvl, "flagset");
592 rule->min_ttl = nvlist_get_number(nvl, "min_ttl");
593 rule->allow_opts = nvlist_get_number(nvl, "allow_opts");
594 rule->rt = nvlist_get_number(nvl, "rt");
595 rule->return_ttl = nvlist_get_number(nvl, "return_ttl");
596 rule->tos = nvlist_get_number(nvl, "tos");
597 rule->set_tos = nvlist_get_number(nvl, "set_tos");
598 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
599 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
601 rule->flush = nvlist_get_number(nvl, "flush");
602 rule->prio = nvlist_get_number(nvl, "prio");
603 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL);
605 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule);
607 rule->states_cur = nvlist_get_number(nvl, "states_cur");
608 rule->states_tot = nvlist_get_number(nvl, "states_tot");
609 rule->src_nodes = nvlist_get_number(nvl, "src_nodes");
613 pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr)
615 static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 };
619 data = nvlist_get_binary(nvl, "addr", &len);
620 assert(len == sizeof(addr->addr));
621 memcpy(addr->addr, data, sizeof(addr->addr));
623 data = nvlist_get_binary(nvl, "mask", &len);
624 assert(len == sizeof(addr->mask));
625 memcpy(addr->mask, data, sizeof(addr->mask));
627 addr->neg = nvlist_get_bool(nvl, "neg");
629 /* To make checks for 'is this address set?' easier. */
630 addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0;
634 pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr)
638 nvl = nvlist_create(0);
642 nvlist_add_bool(nvl, "neg", addr->neg);
643 nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN);
644 nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN);
650 pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule)
652 const char *const *labels;
653 size_t labelcount, i;
655 rule->nr = nvlist_get_number(nvl, "nr");
656 rule->quick = nvlist_get_bool(nvl, "quick");
657 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
658 rule->ifnot = nvlist_get_bool(nvl, "ifnot");
659 rule->direction = nvlist_get_number(nvl, "direction");
660 rule->proto = nvlist_get_number(nvl, "proto");
661 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
663 rule->match_tag = nvlist_get_number(nvl, "match_tag");
664 rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not");
666 labels = nvlist_get_string_array(nvl, "labels", &labelcount);
667 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
668 for (i = 0; i < labelcount; i++)
669 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
670 rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
672 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"),
674 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"),
677 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"),
679 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"),
682 rule->evaluations = nvlist_get_number(nvl, "evaluations");
683 rule->packets[0] = nvlist_get_number(nvl, "packets-in");
684 rule->packets[1] = nvlist_get_number(nvl, "packets-out");
685 rule->bytes[0] = nvlist_get_number(nvl, "bytes-in");
686 rule->bytes[1] = nvlist_get_number(nvl, "bytes-out");
688 if (nvlist_exists_number(nvl, "timestamp")) {
689 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
692 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
693 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
696 rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
697 rule->dnflags = nvlist_get_number(nvl, "dnflags");
699 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
700 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
702 strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"),
705 rule->action = nvlist_get_number(nvl, "action");
709 pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri,
715 bzero(ri, sizeof(*ri));
717 nvl = nvlist_create(0);
718 nvlist_add_string(nvl, "path", path);
720 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0)
723 ri->nr = nvlist_get_number(nvl, "nr");
731 pfctl_get_eth_ruleset(int dev, const char *path, int nr,
732 struct pfctl_eth_ruleset_info *ri)
737 bzero(ri, sizeof(*ri));
739 nvl = nvlist_create(0);
740 nvlist_add_string(nvl, "path", path);
741 nvlist_add_number(nvl, "nr", nr);
743 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0)
746 ri->nr = nvlist_get_number(nvl, "nr");
747 strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN);
748 strlcpy(ri->name, nvlist_get_string(nvl, "name"),
749 PF_ANCHOR_NAME_SIZE);
757 pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules,
763 bzero(rules, sizeof(*rules));
765 nvl = nvlist_create(0);
766 nvlist_add_string(nvl, "anchor", path);
768 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0)
771 rules->nr = nvlist_get_number(nvl, "nr");
772 rules->ticket = nvlist_get_number(nvl, "ticket");
780 pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket,
781 const char *path, struct pfctl_eth_rule *rule, bool clear,
787 nvl = nvlist_create(0);
789 nvlist_add_string(nvl, "anchor", path);
790 nvlist_add_number(nvl, "ticket", ticket);
791 nvlist_add_number(nvl, "nr", nr);
792 nvlist_add_bool(nvl, "clear", clear);
794 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0)
797 pfctl_nveth_rule_to_eth_rule(nvl, rule);
800 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
809 pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor,
810 const char *anchor_call, uint32_t ticket)
813 nvlist_t *nvl, *addr;
816 size_t labelcount, size;
818 nvl = nvlist_create(0);
820 nvlist_add_number(nvl, "ticket", ticket);
821 nvlist_add_string(nvl, "anchor", anchor);
822 nvlist_add_string(nvl, "anchor_call", anchor_call);
824 nvlist_add_number(nvl, "nr", r->nr);
825 nvlist_add_bool(nvl, "quick", r->quick);
826 nvlist_add_string(nvl, "ifname", r->ifname);
827 nvlist_add_bool(nvl, "ifnot", r->ifnot);
828 nvlist_add_number(nvl, "direction", r->direction);
829 nvlist_add_number(nvl, "proto", r->proto);
830 nvlist_add_string(nvl, "match_tagname", r->match_tagname);
831 nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not);
833 addr = pfctl_eth_addr_to_nveth_addr(&r->src);
838 nvlist_add_nvlist(nvl, "src", addr);
839 nvlist_destroy(addr);
841 addr = pfctl_eth_addr_to_nveth_addr(&r->dst);
846 nvlist_add_nvlist(nvl, "dst", addr);
847 nvlist_destroy(addr);
849 pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc);
850 pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst);
853 while (labelcount < PF_RULE_MAX_LABEL_COUNT &&
854 r->label[labelcount][0] != 0) {
855 nvlist_append_string_array(nvl, "labels",
856 r->label[labelcount]);
859 nvlist_add_number(nvl, "ridentifier", r->ridentifier);
861 nvlist_add_string(nvl, "qname", r->qname);
862 nvlist_add_string(nvl, "tagname", r->tagname);
863 nvlist_add_number(nvl, "dnpipe", r->dnpipe);
864 nvlist_add_number(nvl, "dnflags", r->dnflags);
866 nvlist_add_string(nvl, "bridge_to", r->bridge_to);
868 nvlist_add_number(nvl, "action", r->action);
870 packed = nvlist_pack(nvl, &size);
871 if (packed == NULL) {
880 if (ioctl(dev, DIOCADDETHRULE, &nv) != 0)
890 snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr)
894 off = snl_add_msg_attr_nested(nw, type);
896 snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6);
897 snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6);
899 if (addr->type == PF_ADDR_DYNIFTL)
900 snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname);
901 if (addr->type == PF_ADDR_TABLE)
902 snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname);
903 snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type);
904 snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags);
906 snl_end_attr_nested(nw, off);
910 snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr)
914 off = snl_add_msg_attr_nested(nw, type);
916 snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr);
917 snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]);
918 snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]);
919 snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg);
920 snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op);
922 snl_end_attr_nested(nw, off);
926 snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE])
930 off = snl_add_msg_attr_nested(nw, type);
932 while (labels[i][0] != 0 &&
933 i < PF_RULE_MAX_LABEL_COUNT) {
934 snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]);
938 snl_end_attr_nested(nw, off);
942 snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me)
946 off = snl_add_msg_attr_nested(nw, type);
948 snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset);
949 snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen);
950 snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid);
952 snl_end_attr_nested(nw, off);
956 snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool)
960 off = snl_add_msg_attr_nested(nw, type);
962 snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key);
963 snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6);
964 snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx);
965 snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]);
966 snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]);
967 snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts);
968 snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape);
970 snl_end_attr_nested(nw, off);
974 snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts)
978 off = snl_add_msg_attr_nested(nw, type);
980 for (int i = 0; i < PFTM_MAX; i++)
981 snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]);
983 snl_end_attr_nested(nw, off);
987 snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid)
991 off = snl_add_msg_attr_nested(nw, type);
993 snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]);
994 snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]);
995 snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op);
997 snl_end_attr_nested(nw, off);
1001 snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r)
1005 off = snl_add_msg_attr_nested(nw, type);
1007 snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src);
1008 snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst);
1009 snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label);
1010 snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier);
1011 snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname);
1012 snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname);
1013 snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname);
1014 snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname);
1015 snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname);
1016 snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname);
1017 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL, &r->rpool);
1018 snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint);
1019 snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid);
1020 snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout);
1021 snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states);
1022 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes);
1023 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states);
1024 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit);
1025 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds);
1027 snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe);
1028 snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe);
1029 snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags);
1031 snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr);
1032 snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob);
1033 snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid);
1034 snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid);
1036 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp);
1037 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6);
1038 snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss);
1039 snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags);
1041 snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid);
1042 snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid);
1044 snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag);
1045 snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action);
1046 snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction);
1047 snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log);
1048 snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif);
1049 snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick);
1050 snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot);
1051 snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not);
1052 snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass);
1053 snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state);
1054 snl_add_msg_attr_u8(nw, PF_RT_AF, r->af);
1055 snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto);
1056 snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type);
1057 snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code);
1058 snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags);
1059 snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset);
1060 snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl);
1061 snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts);
1062 snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt);
1063 snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl);
1064 snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos);
1065 snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos);
1067 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative);
1068 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard);
1069 snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush);
1070 snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio);
1071 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]);
1072 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]);
1074 snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6);
1075 snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port);
1077 snl_end_attr_nested(nw, off);
1081 pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor,
1082 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket)
1084 struct snl_writer nw;
1085 struct snl_state ss = {};
1086 struct snl_errmsg_data e = {};
1087 struct nlmsghdr *hdr;
1091 snl_init(&ss, NETLINK_GENERIC);
1092 family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME);
1096 snl_init_writer(&ss, &nw);
1097 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE);
1098 hdr->nlmsg_flags |= NLM_F_DUMP;
1099 snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket);
1100 snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket);
1101 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor);
1102 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call);
1104 snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r);
1106 if ((hdr = snl_finalize_msg(&nw)) == NULL)
1109 seq_id = hdr->nlmsg_seq;
1111 if (! snl_send_message(&ss, hdr)) {
1112 printf("Send failed\n");
1116 while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
1122 #define _IN(_field) offsetof(struct genlmsghdr, _field)
1123 #define _OUT(_field) offsetof(struct pfctl_rules_info, _field)
1124 static struct snl_attr_parser ap_getrules[] = {
1125 { .type = PF_GR_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 },
1126 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 },
1128 static struct snl_field_parser fp_getrules[] = {
1132 SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, fp_getrules, ap_getrules);
1135 pfctl_get_rules_info(int dev __unused, struct pfctl_rules_info *rules, uint32_t ruleset,
1138 struct snl_state ss = {};
1139 struct snl_errmsg_data e = {};
1140 struct nlmsghdr *hdr;
1141 struct snl_writer nw;
1145 snl_init(&ss, NETLINK_GENERIC);
1146 family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME);
1150 snl_init_writer(&ss, &nw);
1151 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULES);
1152 hdr->nlmsg_flags |= NLM_F_DUMP;
1154 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, path);
1155 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset);
1157 hdr = snl_finalize_msg(&nw);
1161 seq_id = hdr->nlmsg_seq;
1162 if (! snl_send_message(&ss, hdr))
1165 while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
1166 if (! snl_parse_nlmsg(&ss, hdr, &getrules_parser, rules))
1174 pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor,
1175 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call)
1177 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule,
1178 anchor_call, false));
1181 int pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket,
1182 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule,
1183 char *anchor_call, bool clear)
1188 nvl = nvlist_create(0);
1192 nvlist_add_number(nvl, "nr", nr);
1193 nvlist_add_number(nvl, "ticket", ticket);
1194 nvlist_add_string(nvl, "anchor", anchor);
1195 nvlist_add_number(nvl, "ruleset", ruleset);
1198 nvlist_add_bool(nvl, "clear_counter", true);
1200 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0)
1203 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule);
1206 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
1210 nvlist_destroy(nvl);
1215 pfctl_set_keepcounters(int dev, bool keep)
1221 nvl = nvlist_create(0);
1223 nvlist_add_bool(nvl, "keep_counters", keep);
1225 nv.data = nvlist_pack(nvl, &nv.len);
1228 nvlist_destroy(nvl);
1230 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv);
1236 struct pfctl_creator {
1239 #define _IN(_field) offsetof(struct genlmsghdr, _field)
1240 #define _OUT(_field) offsetof(struct pfctl_creator, _field)
1241 static struct snl_attr_parser ap_creators[] = {
1242 { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
1244 static struct snl_field_parser fp_creators[] = {
1248 SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, fp_creators, ap_creators);
1251 pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len)
1254 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
1257 struct nlmsghdr *hdr;
1258 struct snl_writer nw;
1263 snl_init_writer(ss, &nw);
1264 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS);
1265 hdr->nlmsg_flags |= NLM_F_DUMP;
1266 hdr = snl_finalize_msg(&nw);
1269 uint32_t seq_id = hdr->nlmsg_seq;
1271 snl_send_message(ss, hdr);
1273 struct snl_errmsg_data e = {};
1274 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
1275 struct pfctl_creator c;
1276 bzero(&c, sizeof(c));
1278 if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c))
1293 pfctl_get_creatorids(uint32_t *creators, size_t *len)
1295 struct snl_state ss = {};
1298 snl_init(&ss, NETLINK_GENERIC);
1299 error = pfctl_get_creators_nl(&ss, creators, len);
1307 pfctl_nv_add_state_cmp(nvlist_t *nvl, const char *name,
1308 const struct pfctl_state_cmp *cmp)
1312 nv = nvlist_create(0);
1314 nvlist_add_number(nv, "id", cmp->id);
1315 nvlist_add_number(nv, "creatorid", htonl(cmp->creatorid));
1316 nvlist_add_number(nv, "direction", cmp->direction);
1318 nvlist_add_nvlist(nvl, name, nv);
1323 snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla,
1324 const void *arg __unused, void *target)
1326 memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla));
1331 snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla,
1332 const void *arg __unused, void *target)
1334 size_t maxlen = NLA_DATA_LEN(nla);
1336 if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) {
1337 strlcpy(target, (char *)NLA_DATA(nla), maxlen);
1343 #define _OUT(_field) offsetof(struct pfctl_state_peer, _field)
1344 static const struct snl_attr_parser nla_p_speer[] = {
1345 { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 },
1346 { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 },
1347 { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 },
1348 { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 },
1349 { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 },
1351 SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer);
1354 #define _OUT(_field) offsetof(struct pf_state_key_export, _field)
1355 static const struct snl_attr_parser nla_p_skey[] = {
1356 { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr },
1357 { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr },
1358 { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 },
1359 { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 },
1361 SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey);
1364 #define _IN(_field) offsetof(struct genlmsghdr, _field)
1365 #define _OUT(_field) offsetof(struct pfctl_state, _field)
1366 static struct snl_attr_parser ap_state[] = {
1367 { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 },
1368 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 },
1369 { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname },
1370 { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname },
1371 { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested },
1372 { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested },
1373 { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested },
1374 { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested },
1375 { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr },
1376 { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 },
1377 { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 },
1378 { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 },
1379 { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 },
1380 { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 },
1381 { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 },
1382 { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 },
1383 { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 },
1384 { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 },
1385 { .type = PF_ST_AF, .off = _OUT(key[0].af), .cb = snl_attr_get_uint8 },
1386 { .type = PF_ST_PROTO, .off = _OUT(key[0].proto), .cb = snl_attr_get_uint8 },
1387 { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 },
1388 { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 },
1389 { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 },
1390 { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 },
1392 static struct snl_field_parser fp_state[] = {
1396 SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, fp_state, ap_state);
1398 static const struct snl_hdr_parser *all_parsers[] = {
1399 &state_parser, &skey_parser, &speer_parser,
1400 &creator_parser, &getrules_parser
1404 pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg)
1406 SNL_VERIFY_PARSERS(all_parsers);
1407 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
1410 struct nlmsghdr *hdr;
1411 struct snl_writer nw;
1416 snl_init_writer(ss, &nw);
1417 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES);
1418 hdr->nlmsg_flags |= NLM_F_DUMP;
1419 snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname);
1420 snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto);
1421 snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af);
1422 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6);
1423 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6);
1425 hdr = snl_finalize_msg(&nw);
1429 uint32_t seq_id = hdr->nlmsg_seq;
1431 snl_send_message(ss, hdr);
1433 struct snl_errmsg_data e = {};
1434 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
1435 struct pfctl_state s;
1436 bzero(&s, sizeof(s));
1437 if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s))
1440 s.key[1].af = s.key[0].af;
1441 s.key[1].proto = s.key[0].proto;
1452 pfctl_get_states_iter(pfctl_get_state_fn f, void *arg)
1454 struct pfctl_state_filter filter = {};
1455 return (pfctl_get_filtered_states_iter(&filter, f, arg));
1459 pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg)
1461 struct snl_state ss = {};
1464 snl_init(&ss, NETLINK_GENERIC);
1465 error = pfctl_get_states_nl(filter, &ss, f, arg);
1472 pfctl_append_states(struct pfctl_state *s, void *arg)
1474 struct pfctl_state *new;
1475 struct pfctl_states *states = (struct pfctl_states *)arg;
1477 new = malloc(sizeof(*s));
1481 memcpy(new, s, sizeof(*s));
1483 TAILQ_INSERT_TAIL(&states->states, new, entry);
1489 pfctl_get_states(int dev __unused, struct pfctl_states *states)
1493 bzero(states, sizeof(*states));
1494 TAILQ_INIT(&states->states);
1496 ret = pfctl_get_states_iter(pfctl_append_states, states);
1498 pfctl_free_states(states);
1506 pfctl_free_states(struct pfctl_states *states)
1508 struct pfctl_state *s, *tmp;
1510 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) {
1514 bzero(states, sizeof(*states));
1518 _pfctl_clear_states(int dev, const struct pfctl_kill *kill,
1519 unsigned int *killed, uint64_t ioctlval)
1524 nvl = nvlist_create(0);
1526 pfctl_nv_add_state_cmp(nvl, "cmp", &kill->cmp);
1527 nvlist_add_number(nvl, "af", kill->af);
1528 nvlist_add_number(nvl, "proto", kill->proto);
1529 pfctl_nv_add_rule_addr(nvl, "src", &kill->src);
1530 pfctl_nv_add_rule_addr(nvl, "dst", &kill->dst);
1531 pfctl_nv_add_rule_addr(nvl, "rt_addr", &kill->rt_addr);
1532 nvlist_add_string(nvl, "ifname", kill->ifname);
1533 nvlist_add_string(nvl, "label", kill->label);
1534 nvlist_add_bool(nvl, "kill_match", kill->kill_match);
1535 nvlist_add_bool(nvl, "nat", kill->nat);
1537 if ((ret = pfctl_do_ioctl(dev, ioctlval, 1024, &nvl)) != 0)
1541 *killed = nvlist_get_number(nvl, "killed");
1544 nvlist_destroy(nvl);
1549 pfctl_clear_states(int dev, const struct pfctl_kill *kill,
1550 unsigned int *killed)
1552 return (_pfctl_clear_states(dev, kill, killed, DIOCCLRSTATESNV));
1556 pfctl_kill_states(int dev, const struct pfctl_kill *kill, unsigned int *killed)
1558 return (_pfctl_clear_states(dev, kill, killed, DIOCKILLSTATESNV));
1562 pfctl_clear_rules(int dev, const char *anchorname)
1564 struct pfioc_trans trans;
1565 struct pfioc_trans_e transe[2];
1568 bzero(&trans, sizeof(trans));
1569 bzero(&transe, sizeof(transe));
1571 transe[0].rs_num = PF_RULESET_SCRUB;
1572 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
1573 >= sizeof(transe[0].anchor))
1576 transe[1].rs_num = PF_RULESET_FILTER;
1577 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
1578 >= sizeof(transe[1].anchor))
1582 trans.esize = sizeof(transe[0]);
1583 trans.array = transe;
1585 ret = ioctl(dev, DIOCXBEGIN, &trans);
1588 return ioctl(dev, DIOCXCOMMIT, &trans);
1592 pfctl_clear_nat(int dev, const char *anchorname)
1594 struct pfioc_trans trans;
1595 struct pfioc_trans_e transe[3];
1598 bzero(&trans, sizeof(trans));
1599 bzero(&transe, sizeof(transe));
1601 transe[0].rs_num = PF_RULESET_NAT;
1602 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
1603 >= sizeof(transe[0].anchor))
1606 transe[1].rs_num = PF_RULESET_BINAT;
1607 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
1608 >= sizeof(transe[0].anchor))
1611 transe[2].rs_num = PF_RULESET_RDR;
1612 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor))
1613 >= sizeof(transe[2].anchor))
1617 trans.esize = sizeof(transe[0]);
1618 trans.array = transe;
1620 ret = ioctl(dev, DIOCXBEGIN, &trans);
1623 return ioctl(dev, DIOCXCOMMIT, &trans);
1626 pfctl_clear_eth_rules(int dev, const char *anchorname)
1628 struct pfioc_trans trans;
1629 struct pfioc_trans_e transe;
1632 bzero(&trans, sizeof(trans));
1633 bzero(&transe, sizeof(transe));
1635 transe.rs_num = PF_RULESET_ETH;
1636 if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor))
1637 >= sizeof(transe.anchor))
1641 trans.esize = sizeof(transe);
1642 trans.array = &transe;
1644 ret = ioctl(dev, DIOCXBEGIN, &trans);
1647 return ioctl(dev, DIOCXCOMMIT, &trans);
1651 pfctl_get_limit(int dev, const int index, uint *limit)
1653 struct pfioc_limit pl;
1655 bzero(&pl, sizeof(pl));
1658 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1)
1667 pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s)
1673 uint64_t lim, hi, lo;
1675 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
1680 hi = lim * s->highwater / 100;
1681 lo = lim * s->lowwater / 100;
1686 nvl = nvlist_create(0);
1688 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER);
1689 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE);
1690 nvlist_add_number(nvl, "highwater", hi);
1691 nvlist_add_number(nvl, "lowwater", lo);
1693 nv.data = nvlist_pack(nvl, &nv.len);
1695 nvlist_destroy(nvl);
1698 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv);
1705 pfctl_get_syncookies(int dev, struct pfctl_syncookies *s)
1710 bool enabled, adaptive;
1712 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
1716 bzero(s, sizeof(*s));
1718 nvl = nvlist_create(0);
1720 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) {
1725 enabled = nvlist_get_bool(nvl, "enabled");
1726 adaptive = nvlist_get_bool(nvl, "adaptive");
1730 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE;
1732 s->mode = PFCTL_SYNCOOKIES_ALWAYS;
1734 s->mode = PFCTL_SYNCOOKIES_NEVER;
1737 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit;
1738 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit;
1739 s->halfopen_states = nvlist_get_number(nvl, "halfopen_states");
1742 nvlist_destroy(nvl);
1747 pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1748 *addr, int size, int *nadd, int flags)
1750 struct pfioc_table io;
1752 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1755 bzero(&io, sizeof io);
1756 io.pfrio_flags = flags;
1757 io.pfrio_table = *tbl;
1758 io.pfrio_buffer = addr;
1759 io.pfrio_esize = sizeof(*addr);
1760 io.pfrio_size = size;
1762 if (ioctl(dev, DIOCRADDADDRS, &io))
1765 *nadd = io.pfrio_nadd;
1770 pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1771 *addr, int size, int *ndel, int flags)
1773 struct pfioc_table io;
1775 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1778 bzero(&io, sizeof io);
1779 io.pfrio_flags = flags;
1780 io.pfrio_table = *tbl;
1781 io.pfrio_buffer = addr;
1782 io.pfrio_esize = sizeof(*addr);
1783 io.pfrio_size = size;
1785 if (ioctl(dev, DIOCRDELADDRS, &io))
1788 *ndel = io.pfrio_ndel;
1793 pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1794 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags)
1796 struct pfioc_table io;
1798 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1801 bzero(&io, sizeof io);
1802 io.pfrio_flags = flags;
1803 io.pfrio_table = *tbl;
1804 io.pfrio_buffer = addr;
1805 io.pfrio_esize = sizeof(*addr);
1806 io.pfrio_size = size;
1807 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0;
1808 if (ioctl(dev, DIOCRSETADDRS, &io))
1811 *nadd = io.pfrio_nadd;
1813 *ndel = io.pfrio_ndel;
1814 if (nchange != NULL)
1815 *nchange = io.pfrio_nchange;
1817 *size2 = io.pfrio_size2;
1821 int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr,
1822 int *size, int flags)
1824 struct pfioc_table io;
1826 if (tbl == NULL || size == NULL || *size < 0 ||
1827 (*size && addr == NULL)) {
1830 bzero(&io, sizeof io);
1831 io.pfrio_flags = flags;
1832 io.pfrio_table = *tbl;
1833 io.pfrio_buffer = addr;
1834 io.pfrio_esize = sizeof(*addr);
1835 io.pfrio_size = *size;
1836 if (ioctl(dev, DIOCRGETADDRS, &io))
1838 *size = io.pfrio_size;