1 /* $OpenBSD: pfctl.c,v 1.278 2008/08/31 20:18:17 jmc Exp $ */
4 * Copyright (c) 2001 Daniel Hartmeier
5 * Copyright (c) 2002,2003 Henning Brauer
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * - Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include <sys/types.h>
38 #include <sys/ioctl.h>
39 #include <sys/socket.h>
41 #include <sys/endian.h>
44 #include <netinet/in.h>
45 #include <net/pfvar.h>
46 #include <arpa/inet.h>
47 #include <net/altq/altq.h>
48 #include <sys/sysctl.h>
61 #include "pfctl_parser.h"
65 int pfctl_enable(int, int);
66 int pfctl_disable(int, int);
67 int pfctl_clear_stats(int, int);
68 int pfctl_clear_interface_flags(int, int);
69 int pfctl_clear_rules(int, int, char *);
70 int pfctl_clear_nat(int, int, char *);
71 int pfctl_clear_altq(int, int);
72 int pfctl_clear_src_nodes(int, int);
73 int pfctl_clear_states(int, const char *, int);
74 void pfctl_addrprefix(char *, struct pf_addr *);
75 int pfctl_kill_src_nodes(int, const char *, int);
76 int pfctl_net_kill_states(int, const char *, int);
77 int pfctl_label_kill_states(int, const char *, int);
78 int pfctl_id_kill_states(int, const char *, int);
79 void pfctl_init_options(struct pfctl *);
80 int pfctl_load_options(struct pfctl *);
81 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
82 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
83 int pfctl_load_debug(struct pfctl *, unsigned int);
84 int pfctl_load_logif(struct pfctl *, char *);
85 int pfctl_load_hostid(struct pfctl *, u_int32_t);
86 int pfctl_get_pool(int, struct pf_pool *, u_int32_t, u_int32_t, int,
88 void pfctl_print_rule_counters(struct pf_rule *, int);
89 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int);
90 int pfctl_show_nat(int, int, char *);
91 int pfctl_show_src_nodes(int, int);
92 int pfctl_show_states(int, const char *, int);
93 int pfctl_show_status(int, int);
94 int pfctl_show_timeouts(int, int);
95 int pfctl_show_limits(int, int);
96 void pfctl_debug(int, u_int32_t, int);
97 int pfctl_test_altqsupport(int, int);
98 int pfctl_show_anchors(int, int, char *);
99 int pfctl_ruleset_trans(struct pfctl *, char *, struct pf_anchor *);
100 int pfctl_load_ruleset(struct pfctl *, char *,
101 struct pf_ruleset *, int, int);
102 int pfctl_load_rule(struct pfctl *, char *, struct pf_rule *, int);
103 const char *pfctl_lookup_option(char *, const char * const *);
105 static struct pf_anchor_global pf_anchors;
106 static struct pf_anchor pf_main_anchor;
108 static const char *clearopt;
109 static char *rulesopt;
110 static const char *showopt;
111 static const char *debugopt;
112 static char *anchoropt;
113 static const char *optiopt = NULL;
114 static const char *pf_device = "/dev/pf";
115 static char *ifaceopt;
116 static char *tableopt;
117 static const char *tblcmdopt;
118 static int src_node_killers;
119 static char *src_node_kill[2];
120 static int state_killers;
121 static char *state_kill[2];
126 static int first_title = 1;
127 static int labels = 0;
129 #define INDENT(d, o) do { \
132 for (i=0; i < d; i++) \
138 static const struct {
142 { "states", PF_LIMIT_STATES },
143 { "src-nodes", PF_LIMIT_SRC_NODES },
144 { "frags", PF_LIMIT_FRAGS },
145 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
153 static const struct pf_hint pf_hint_normal[] = {
154 { "tcp.first", 2 * 60 },
155 { "tcp.opening", 30 },
156 { "tcp.established", 24 * 60 * 60 },
157 { "tcp.closing", 15 * 60 },
158 { "tcp.finwait", 45 },
159 { "tcp.closed", 90 },
160 { "tcp.tsdiff", 30 },
163 static const struct pf_hint pf_hint_satellite[] = {
164 { "tcp.first", 3 * 60 },
165 { "tcp.opening", 30 + 5 },
166 { "tcp.established", 24 * 60 * 60 },
167 { "tcp.closing", 15 * 60 + 5 },
168 { "tcp.finwait", 45 + 5 },
169 { "tcp.closed", 90 + 5 },
170 { "tcp.tsdiff", 60 },
173 static const struct pf_hint pf_hint_conservative[] = {
174 { "tcp.first", 60 * 60 },
175 { "tcp.opening", 15 * 60 },
176 { "tcp.established", 5 * 24 * 60 * 60 },
177 { "tcp.closing", 60 * 60 },
178 { "tcp.finwait", 10 * 60 },
179 { "tcp.closed", 3 * 60 },
180 { "tcp.tsdiff", 60 },
183 static const struct pf_hint pf_hint_aggressive[] = {
185 { "tcp.opening", 5 },
186 { "tcp.established", 5 * 60 * 60 },
187 { "tcp.closing", 60 },
188 { "tcp.finwait", 30 },
189 { "tcp.closed", 30 },
190 { "tcp.tsdiff", 10 },
194 static const struct {
196 const struct pf_hint *hint;
198 { "normal", pf_hint_normal },
199 { "satellite", pf_hint_satellite },
200 { "high-latency", pf_hint_satellite },
201 { "conservative", pf_hint_conservative },
202 { "aggressive", pf_hint_aggressive },
206 static const char * const clearopt_list[] = {
207 "nat", "queue", "rules", "Sources",
208 "states", "info", "Tables", "osfp", "all", NULL
211 static const char * const showopt_list[] = {
212 "nat", "queue", "rules", "Anchors", "Sources", "states", "info",
213 "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp",
217 static const char * const tblcmdopt_list[] = {
218 "kill", "flush", "add", "delete", "load", "replace", "show",
219 "test", "zero", "expire", NULL
222 static const char * const debugopt_list[] = {
223 "none", "urgent", "misc", "loud", NULL
226 static const char * const optiopt_list[] = {
227 "none", "basic", "profile", NULL
233 extern char *__progname;
236 "usage: %s [-AdeghmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
237 "\t[-f file] [-i interface] [-K host | network]\n"
238 "\t[-k host | network | label | id] [-o level] [-p device]\n"
239 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
246 pfctl_enable(int dev, int opts)
248 if (ioctl(dev, DIOCSTART)) {
250 errx(1, "pf already enabled");
251 else if (errno == ESRCH)
252 errx(1, "pfil registeration failed");
256 if ((opts & PF_OPT_QUIET) == 0)
257 fprintf(stderr, "pf enabled\n");
259 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
261 err(1, "DIOCSTARTALTQ");
267 pfctl_disable(int dev, int opts)
269 if (ioctl(dev, DIOCSTOP)) {
271 errx(1, "pf not enabled");
275 if ((opts & PF_OPT_QUIET) == 0)
276 fprintf(stderr, "pf disabled\n");
278 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
280 err(1, "DIOCSTOPALTQ");
286 pfctl_clear_stats(int dev, int opts)
288 if (ioctl(dev, DIOCCLRSTATUS))
289 err(1, "DIOCCLRSTATUS");
290 if ((opts & PF_OPT_QUIET) == 0)
291 fprintf(stderr, "pf: statistics cleared\n");
296 pfctl_clear_interface_flags(int dev, int opts)
298 struct pfioc_iface pi;
300 if ((opts & PF_OPT_NOACTION) == 0) {
301 bzero(&pi, sizeof(pi));
302 pi.pfiio_flags = PFI_IFLAG_SKIP;
304 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
305 err(1, "DIOCCLRIFFLAG");
306 if ((opts & PF_OPT_QUIET) == 0)
307 fprintf(stderr, "pf: interface flags reset\n");
313 pfctl_clear_rules(int dev, int opts, char *anchorname)
317 memset(&t, 0, sizeof(t));
318 t.pfrb_type = PFRB_TRANS;
319 if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) ||
320 pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) ||
321 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
322 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
323 err(1, "pfctl_clear_rules");
324 if ((opts & PF_OPT_QUIET) == 0)
325 fprintf(stderr, "rules cleared\n");
330 pfctl_clear_nat(int dev, int opts, char *anchorname)
334 memset(&t, 0, sizeof(t));
335 t.pfrb_type = PFRB_TRANS;
336 if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) ||
337 pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) ||
338 pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) ||
339 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
340 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
341 err(1, "pfctl_clear_nat");
342 if ((opts & PF_OPT_QUIET) == 0)
343 fprintf(stderr, "nat cleared\n");
348 pfctl_clear_altq(int dev, int opts)
354 memset(&t, 0, sizeof(t));
355 t.pfrb_type = PFRB_TRANS;
356 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
357 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
358 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
359 err(1, "pfctl_clear_altq");
360 if ((opts & PF_OPT_QUIET) == 0)
361 fprintf(stderr, "altq cleared\n");
366 pfctl_clear_src_nodes(int dev, int opts)
368 if (ioctl(dev, DIOCCLRSRCNODES))
369 err(1, "DIOCCLRSRCNODES");
370 if ((opts & PF_OPT_QUIET) == 0)
371 fprintf(stderr, "source tracking entries cleared\n");
376 pfctl_clear_states(int dev, const char *iface, int opts)
378 struct pfioc_state_kill psk;
380 memset(&psk, 0, sizeof(psk));
381 if (iface != NULL && strlcpy(psk.psk_ifname, iface,
382 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
383 errx(1, "invalid interface: %s", iface);
385 if (ioctl(dev, DIOCCLRSTATES, &psk))
386 err(1, "DIOCCLRSTATES");
387 if ((opts & PF_OPT_QUIET) == 0)
388 fprintf(stderr, "%d states cleared\n", psk.psk_killed);
393 pfctl_addrprefix(char *addr, struct pf_addr *mask)
397 int prefix, ret_ga, q, r;
398 struct addrinfo hints, *res;
400 if ((p = strchr(addr, '/')) == NULL)
404 prefix = strtonum(p, 0, 128, &errstr);
406 errx(1, "prefix is %s: %s", errstr, p);
408 bzero(&hints, sizeof(hints));
409 /* prefix only with numeric addresses */
410 hints.ai_flags |= AI_NUMERICHOST;
412 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
413 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
417 if (res->ai_family == AF_INET && prefix > 32)
418 errx(1, "prefix too long for AF_INET");
419 else if (res->ai_family == AF_INET6 && prefix > 128)
420 errx(1, "prefix too long for AF_INET6");
424 switch (res->ai_family) {
426 bzero(&mask->v4, sizeof(mask->v4));
427 mask->v4.s_addr = htonl((u_int32_t)
428 (0xffffffffffULL << (32 - prefix)));
431 bzero(&mask->v6, sizeof(mask->v6));
433 memset((void *)&mask->v6, 0xff, q);
435 *((u_char *)&mask->v6 + q) =
436 (0xff00 >> r) & 0xff;
443 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
445 struct pfioc_src_node_kill psnk;
446 struct addrinfo *res[2], *resp[2];
447 struct sockaddr last_src, last_dst;
448 int killed, sources, dests;
451 killed = sources = dests = 0;
453 memset(&psnk, 0, sizeof(psnk));
454 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
455 sizeof(psnk.psnk_src.addr.v.a.mask));
456 memset(&last_src, 0xff, sizeof(last_src));
457 memset(&last_dst, 0xff, sizeof(last_dst));
459 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
461 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
462 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
465 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
466 if (resp[0]->ai_addr == NULL)
468 /* We get lots of duplicates. Catch the easy ones */
469 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
471 last_src = *(struct sockaddr *)resp[0]->ai_addr;
473 psnk.psnk_af = resp[0]->ai_family;
476 if (psnk.psnk_af == AF_INET)
477 psnk.psnk_src.addr.v.a.addr.v4 =
478 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
479 else if (psnk.psnk_af == AF_INET6)
480 psnk.psnk_src.addr.v.a.addr.v6 =
481 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
484 errx(1, "Unknown address family %d", psnk.psnk_af);
486 if (src_node_killers > 1) {
488 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
489 sizeof(psnk.psnk_dst.addr.v.a.mask));
490 memset(&last_dst, 0xff, sizeof(last_dst));
491 pfctl_addrprefix(src_node_kill[1],
492 &psnk.psnk_dst.addr.v.a.mask);
493 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
495 errx(1, "getaddrinfo: %s",
496 gai_strerror(ret_ga));
499 for (resp[1] = res[1]; resp[1];
500 resp[1] = resp[1]->ai_next) {
501 if (resp[1]->ai_addr == NULL)
503 if (psnk.psnk_af != resp[1]->ai_family)
506 if (memcmp(&last_dst, resp[1]->ai_addr,
507 sizeof(last_dst)) == 0)
509 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
513 if (psnk.psnk_af == AF_INET)
514 psnk.psnk_dst.addr.v.a.addr.v4 =
515 ((struct sockaddr_in *)resp[1]->
517 else if (psnk.psnk_af == AF_INET6)
518 psnk.psnk_dst.addr.v.a.addr.v6 =
519 ((struct sockaddr_in6 *)resp[1]->
522 errx(1, "Unknown address family %d",
525 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
526 err(1, "DIOCKILLSRCNODES");
527 killed += psnk.psnk_killed;
529 freeaddrinfo(res[1]);
531 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
532 err(1, "DIOCKILLSRCNODES");
533 killed += psnk.psnk_killed;
537 freeaddrinfo(res[0]);
539 if ((opts & PF_OPT_QUIET) == 0)
540 fprintf(stderr, "killed %d src nodes from %d sources and %d "
541 "destinations\n", killed, sources, dests);
546 pfctl_net_kill_states(int dev, const char *iface, int opts)
548 struct pfioc_state_kill psk;
549 struct addrinfo *res[2], *resp[2];
550 struct sockaddr last_src, last_dst;
551 int killed, sources, dests;
554 killed = sources = dests = 0;
556 memset(&psk, 0, sizeof(psk));
557 memset(&psk.psk_src.addr.v.a.mask, 0xff,
558 sizeof(psk.psk_src.addr.v.a.mask));
559 memset(&last_src, 0xff, sizeof(last_src));
560 memset(&last_dst, 0xff, sizeof(last_dst));
561 if (iface != NULL && strlcpy(psk.psk_ifname, iface,
562 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
563 errx(1, "invalid interface: %s", iface);
565 pfctl_addrprefix(state_kill[0], &psk.psk_src.addr.v.a.mask);
567 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
568 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
571 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
572 if (resp[0]->ai_addr == NULL)
574 /* We get lots of duplicates. Catch the easy ones */
575 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
577 last_src = *(struct sockaddr *)resp[0]->ai_addr;
579 psk.psk_af = resp[0]->ai_family;
582 if (psk.psk_af == AF_INET)
583 psk.psk_src.addr.v.a.addr.v4 =
584 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
585 else if (psk.psk_af == AF_INET6)
586 psk.psk_src.addr.v.a.addr.v6 =
587 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
590 errx(1, "Unknown address family %d", psk.psk_af);
592 if (state_killers > 1) {
594 memset(&psk.psk_dst.addr.v.a.mask, 0xff,
595 sizeof(psk.psk_dst.addr.v.a.mask));
596 memset(&last_dst, 0xff, sizeof(last_dst));
597 pfctl_addrprefix(state_kill[1],
598 &psk.psk_dst.addr.v.a.mask);
599 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
601 errx(1, "getaddrinfo: %s",
602 gai_strerror(ret_ga));
605 for (resp[1] = res[1]; resp[1];
606 resp[1] = resp[1]->ai_next) {
607 if (resp[1]->ai_addr == NULL)
609 if (psk.psk_af != resp[1]->ai_family)
612 if (memcmp(&last_dst, resp[1]->ai_addr,
613 sizeof(last_dst)) == 0)
615 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
619 if (psk.psk_af == AF_INET)
620 psk.psk_dst.addr.v.a.addr.v4 =
621 ((struct sockaddr_in *)resp[1]->
623 else if (psk.psk_af == AF_INET6)
624 psk.psk_dst.addr.v.a.addr.v6 =
625 ((struct sockaddr_in6 *)resp[1]->
628 errx(1, "Unknown address family %d",
631 if (ioctl(dev, DIOCKILLSTATES, &psk))
632 err(1, "DIOCKILLSTATES");
633 killed += psk.psk_killed;
635 freeaddrinfo(res[1]);
637 if (ioctl(dev, DIOCKILLSTATES, &psk))
638 err(1, "DIOCKILLSTATES");
639 killed += psk.psk_killed;
643 freeaddrinfo(res[0]);
645 if ((opts & PF_OPT_QUIET) == 0)
646 fprintf(stderr, "killed %d states from %d sources and %d "
647 "destinations\n", killed, sources, dests);
652 pfctl_label_kill_states(int dev, const char *iface, int opts)
654 struct pfioc_state_kill psk;
656 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
657 warnx("no label specified");
660 memset(&psk, 0, sizeof(psk));
661 if (iface != NULL && strlcpy(psk.psk_ifname, iface,
662 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
663 errx(1, "invalid interface: %s", iface);
665 if (strlcpy(psk.psk_label, state_kill[1], sizeof(psk.psk_label)) >=
666 sizeof(psk.psk_label))
667 errx(1, "label too long: %s", state_kill[1]);
669 if (ioctl(dev, DIOCKILLSTATES, &psk))
670 err(1, "DIOCKILLSTATES");
672 if ((opts & PF_OPT_QUIET) == 0)
673 fprintf(stderr, "killed %d states\n", psk.psk_killed);
679 pfctl_id_kill_states(int dev, const char *iface, int opts)
681 struct pfioc_state_kill psk;
683 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
684 warnx("no id specified");
688 memset(&psk, 0, sizeof(psk));
689 if ((sscanf(state_kill[1], "%jx/%x",
690 &psk.psk_pfcmp.id, &psk.psk_pfcmp.creatorid)) == 2)
691 HTONL(psk.psk_pfcmp.creatorid);
692 else if ((sscanf(state_kill[1], "%jx", &psk.psk_pfcmp.id)) == 1) {
693 psk.psk_pfcmp.creatorid = 0;
695 warnx("wrong id format specified");
698 if (psk.psk_pfcmp.id == 0) {
699 warnx("cannot kill id 0");
703 psk.psk_pfcmp.id = htobe64(psk.psk_pfcmp.id);
704 if (ioctl(dev, DIOCKILLSTATES, &psk))
705 err(1, "DIOCKILLSTATES");
707 if ((opts & PF_OPT_QUIET) == 0)
708 fprintf(stderr, "killed %d states\n", psk.psk_killed);
714 pfctl_get_pool(int dev, struct pf_pool *pool, u_int32_t nr,
715 u_int32_t ticket, int r_action, char *anchorname)
717 struct pfioc_pooladdr pp;
718 struct pf_pooladdr *pa;
721 memset(&pp, 0, sizeof(pp));
722 memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
723 pp.r_action = r_action;
726 if (ioctl(dev, DIOCGETADDRS, &pp)) {
727 warn("DIOCGETADDRS");
731 TAILQ_INIT(&pool->list);
732 for (pnr = 0; pnr < mpnr; ++pnr) {
734 if (ioctl(dev, DIOCGETADDR, &pp)) {
738 pa = calloc(1, sizeof(struct pf_pooladdr));
741 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
742 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
749 pfctl_move_pool(struct pf_pool *src, struct pf_pool *dst)
751 struct pf_pooladdr *pa;
753 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
754 TAILQ_REMOVE(&src->list, pa, entries);
755 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
760 pfctl_clear_pool(struct pf_pool *pool)
762 struct pf_pooladdr *pa;
764 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
765 TAILQ_REMOVE(&pool->list, pa, entries);
771 pfctl_print_rule_counters(struct pf_rule *rule, int opts)
773 if (opts & PF_OPT_DEBUG) {
774 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
775 "p", "sa", "sp", "da", "dp" };
778 printf(" [ Skip steps: ");
779 for (i = 0; i < PF_SKIP_COUNT; ++i) {
780 if (rule->skip[i].nr == rule->nr + 1)
783 if (rule->skip[i].nr == -1)
786 printf("%u ", rule->skip[i].nr);
790 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
791 rule->qname, rule->qid, rule->pqname, rule->pqid);
793 if (opts & PF_OPT_VERBOSE) {
794 printf(" [ Evaluations: %-8llu Packets: %-8llu "
795 "Bytes: %-10llu States: %-6ju]\n",
796 (unsigned long long)rule->evaluations,
797 (unsigned long long)(rule->packets[0] +
799 (unsigned long long)(rule->bytes[0] +
800 rule->bytes[1]), (uintmax_t)rule->u_states_cur);
801 if (!(opts & PF_OPT_DEBUG))
802 printf(" [ Inserted: uid %u pid %u "
803 "State Creations: %-6ju]\n",
804 (unsigned)rule->cuid, (unsigned)rule->cpid,
805 (uintmax_t)rule->u_states_tot);
810 pfctl_print_title(char *title)
815 printf("%s\n", title);
819 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
820 char *anchorname, int depth)
822 struct pfioc_rule pr;
823 u_int32_t nr, mnr, header = 0;
824 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
825 int numeric = opts & PF_OPT_NUMERIC;
826 int len = strlen(path);
831 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
833 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
835 memset(&pr, 0, sizeof(pr));
836 memcpy(pr.anchor, path, sizeof(pr.anchor));
837 if (opts & PF_OPT_SHOWALL) {
838 pr.rule.action = PF_PASS;
839 if (ioctl(dev, DIOCGETRULES, &pr)) {
840 warn("DIOCGETRULES");
845 pr.rule.action = PF_SCRUB;
846 if (ioctl(dev, DIOCGETRULES, &pr)) {
847 warn("DIOCGETRULES");
850 if (opts & PF_OPT_SHOWALL) {
851 if (format == PFCTL_SHOW_RULES && (pr.nr > 0 || header))
852 pfctl_print_title("FILTER RULES:");
853 else if (format == PFCTL_SHOW_LABELS && labels)
854 pfctl_print_title("LABEL COUNTERS:");
857 if (opts & PF_OPT_CLRRULECTRS)
858 pr.action = PF_GET_CLR_CNTR;
860 for (nr = 0; nr < mnr; ++nr) {
862 if (ioctl(dev, DIOCGETRULE, &pr)) {
867 if (pfctl_get_pool(dev, &pr.rule.rpool,
868 nr, pr.ticket, PF_SCRUB, path) != 0)
872 case PFCTL_SHOW_LABELS:
874 case PFCTL_SHOW_RULES:
875 if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
877 print_rule(&pr.rule, pr.anchor_call, rule_numbers, numeric);
879 pfctl_print_rule_counters(&pr.rule, opts);
881 case PFCTL_SHOW_NOTHING:
884 pfctl_clear_pool(&pr.rule.rpool);
886 pr.rule.action = PF_PASS;
887 if (ioctl(dev, DIOCGETRULES, &pr)) {
888 warn("DIOCGETRULES");
892 for (nr = 0; nr < mnr; ++nr) {
894 if (ioctl(dev, DIOCGETRULE, &pr)) {
899 if (pfctl_get_pool(dev, &pr.rule.rpool,
900 nr, pr.ticket, PF_PASS, path) != 0)
904 case PFCTL_SHOW_LABELS:
905 if (pr.rule.label[0]) {
906 printf("%s %llu %llu %llu %llu"
907 " %llu %llu %llu %ju\n",
909 (unsigned long long)pr.rule.evaluations,
910 (unsigned long long)(pr.rule.packets[0] +
912 (unsigned long long)(pr.rule.bytes[0] +
914 (unsigned long long)pr.rule.packets[0],
915 (unsigned long long)pr.rule.bytes[0],
916 (unsigned long long)pr.rule.packets[1],
917 (unsigned long long)pr.rule.bytes[1],
918 (uintmax_t)pr.rule.u_states_tot);
921 case PFCTL_SHOW_RULES:
923 if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
925 INDENT(depth, !(opts & PF_OPT_VERBOSE));
926 if (pr.anchor_call[0] &&
927 ((((p = strrchr(pr.anchor_call, '_')) != NULL) &&
928 ((void *)p == (void *)pr.anchor_call ||
929 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
931 if ((p = strrchr(pr.anchor_call, '/')) !=
935 p = &pr.anchor_call[0];
937 p = &pr.anchor_call[0];
939 print_rule(&pr.rule, p, rule_numbers, numeric);
944 pfctl_print_rule_counters(&pr.rule, opts);
946 pfctl_show_rules(dev, path, opts, format,
948 INDENT(depth, !(opts & PF_OPT_VERBOSE));
952 case PFCTL_SHOW_NOTHING:
955 pfctl_clear_pool(&pr.rule.rpool);
966 pfctl_show_nat(int dev, int opts, char *anchorname)
968 struct pfioc_rule pr;
970 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
971 int i, dotitle = opts & PF_OPT_SHOWALL;
973 memset(&pr, 0, sizeof(pr));
974 memcpy(pr.anchor, anchorname, sizeof(pr.anchor));
975 for (i = 0; i < 3; i++) {
976 pr.rule.action = nattype[i];
977 if (ioctl(dev, DIOCGETRULES, &pr)) {
978 warn("DIOCGETRULES");
982 for (nr = 0; nr < mnr; ++nr) {
984 if (ioctl(dev, DIOCGETRULE, &pr)) {
988 if (pfctl_get_pool(dev, &pr.rule.rpool, nr,
989 pr.ticket, nattype[i], anchorname) != 0)
992 pfctl_print_title("TRANSLATION RULES:");
995 print_rule(&pr.rule, pr.anchor_call,
996 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
998 pfctl_print_rule_counters(&pr.rule, opts);
999 pfctl_clear_pool(&pr.rule.rpool);
1006 pfctl_show_src_nodes(int dev, int opts)
1008 struct pfioc_src_nodes psn;
1009 struct pf_src_node *p;
1010 char *inbuf = NULL, *newinbuf = NULL;
1011 unsigned int len = 0;
1014 memset(&psn, 0, sizeof(psn));
1018 newinbuf = realloc(inbuf, len);
1019 if (newinbuf == NULL)
1021 psn.psn_buf = inbuf = newinbuf;
1023 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
1024 warn("DIOCGETSRCNODES");
1028 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
1030 if (len == 0 && psn.psn_len == 0)
1032 if (len == 0 && psn.psn_len != 0)
1034 if (psn.psn_len == 0)
1035 goto done; /* no src_nodes */
1038 p = psn.psn_src_nodes;
1039 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
1040 pfctl_print_title("SOURCE TRACKING NODES:");
1041 for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1042 print_src_node(p, opts);
1051 pfctl_show_states(int dev, const char *iface, int opts)
1053 struct pfioc_states ps;
1054 struct pfsync_state *p;
1055 char *inbuf = NULL, *newinbuf = NULL;
1056 unsigned int len = 0;
1057 int i, dotitle = (opts & PF_OPT_SHOWALL);
1059 memset(&ps, 0, sizeof(ps));
1063 newinbuf = realloc(inbuf, len);
1064 if (newinbuf == NULL)
1066 ps.ps_buf = inbuf = newinbuf;
1068 if (ioctl(dev, DIOCGETSTATES, &ps) < 0) {
1069 warn("DIOCGETSTATES");
1073 if (ps.ps_len + sizeof(struct pfioc_states) < len)
1075 if (len == 0 && ps.ps_len == 0)
1077 if (len == 0 && ps.ps_len != 0)
1080 goto done; /* no states */
1084 for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) {
1085 if (iface != NULL && strcmp(p->ifname, iface))
1088 pfctl_print_title("STATES:");
1091 print_state(p, opts);
1099 pfctl_show_status(int dev, int opts)
1101 struct pf_status status;
1103 if (ioctl(dev, DIOCGETSTATUS, &status)) {
1104 warn("DIOCGETSTATUS");
1107 if (opts & PF_OPT_SHOWALL)
1108 pfctl_print_title("INFO:");
1109 print_status(&status, opts);
1114 pfctl_show_timeouts(int dev, int opts)
1119 if (opts & PF_OPT_SHOWALL)
1120 pfctl_print_title("TIMEOUTS:");
1121 memset(&pt, 0, sizeof(pt));
1122 for (i = 0; pf_timeouts[i].name; i++) {
1123 pt.timeout = pf_timeouts[i].timeout;
1124 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1125 err(1, "DIOCGETTIMEOUT");
1126 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1127 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1128 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1139 pfctl_show_limits(int dev, int opts)
1141 struct pfioc_limit pl;
1144 if (opts & PF_OPT_SHOWALL)
1145 pfctl_print_title("LIMITS:");
1146 memset(&pl, 0, sizeof(pl));
1147 for (i = 0; pf_limits[i].name; i++) {
1148 pl.index = pf_limits[i].index;
1149 if (ioctl(dev, DIOCGETLIMIT, &pl))
1150 err(1, "DIOCGETLIMIT");
1151 printf("%-13s ", pf_limits[i].name);
1152 if (pl.limit == UINT_MAX)
1153 printf("unlimited\n");
1155 printf("hard limit %8u\n", pl.limit);
1160 /* callbacks for rule/nat/rdr/addr */
1162 pfctl_add_pool(struct pfctl *pf, struct pf_pool *p, sa_family_t af)
1164 struct pf_pooladdr *pa;
1166 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1167 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1168 err(1, "DIOCBEGINADDRS");
1172 TAILQ_FOREACH(pa, &p->list, entries) {
1173 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1174 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1175 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1176 err(1, "DIOCADDADDR");
1183 pfctl_add_rule(struct pfctl *pf, struct pf_rule *r, const char *anchor_call)
1186 struct pf_rule *rule;
1187 struct pf_ruleset *rs;
1190 rs_num = pf_get_ruleset_number(r->action);
1191 if (rs_num == PF_RULESET_MAX)
1192 errx(1, "Invalid rule type %d", r->action);
1194 rs = &pf->anchor->ruleset;
1196 if (anchor_call[0] && r->anchor == NULL) {
1198 * Don't make non-brace anchors part of the main anchor pool.
1200 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1201 err(1, "pfctl_add_rule: calloc");
1203 pf_init_ruleset(&r->anchor->ruleset);
1204 r->anchor->ruleset.anchor = r->anchor;
1205 if (strlcpy(r->anchor->path, anchor_call,
1206 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1207 errx(1, "pfctl_add_rule: strlcpy");
1208 if ((p = strrchr(anchor_call, '/')) != NULL) {
1210 err(1, "pfctl_add_rule: bad anchor name %s",
1213 p = (char *)anchor_call;
1214 if (strlcpy(r->anchor->name, p,
1215 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1216 errx(1, "pfctl_add_rule: strlcpy");
1219 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1221 bcopy(r, rule, sizeof(*rule));
1222 TAILQ_INIT(&rule->rpool.list);
1223 pfctl_move_pool(&r->rpool, &rule->rpool);
1225 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1230 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pf_anchor *a)
1232 int osize = pf->trans->pfrb_size;
1234 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1235 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1236 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1237 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1240 if (a == pf->astack[0] && ((altqsupport &&
1241 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1242 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1245 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1246 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1247 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1250 if (pf->loadopt & PFCTL_FLAG_TABLE)
1251 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1253 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1260 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pf_ruleset *rs,
1261 int rs_num, int depth)
1264 int error, len = strlen(path);
1267 pf->anchor = rs->anchor;
1270 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1272 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1275 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1277 if (pf->opts & PF_OPT_VERBOSE)
1279 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1280 (error = pfctl_ruleset_trans(pf,
1281 path, rs->anchor))) {
1282 printf("pfctl_load_rulesets: "
1283 "pfctl_ruleset_trans %d\n", error);
1286 } else if (pf->opts & PF_OPT_VERBOSE)
1291 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1292 pfctl_optimize_ruleset(pf, rs);
1294 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1295 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1296 if ((error = pfctl_load_rule(pf, path, r, depth)))
1299 if ((error = pfctl_load_ruleset(pf, path,
1300 &r->anchor->ruleset, rs_num, depth + 1)))
1302 } else if (pf->opts & PF_OPT_VERBOSE)
1306 if (brace && pf->opts & PF_OPT_VERBOSE) {
1307 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1320 pfctl_load_rule(struct pfctl *pf, char *path, struct pf_rule *r, int depth)
1322 u_int8_t rs_num = pf_get_ruleset_number(r->action);
1324 struct pfioc_rule pr;
1325 int len = strlen(path);
1327 bzero(&pr, sizeof(pr));
1328 /* set up anchor before adding to path for anchor_call */
1329 if ((pf->opts & PF_OPT_NOACTION) == 0)
1330 pr.ticket = pfctl_get_ticket(pf->trans, rs_num, path);
1331 if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor))
1332 errx(1, "pfctl_load_rule: strlcpy");
1335 if (r->anchor->match) {
1337 snprintf(&path[len], MAXPATHLEN - len,
1338 "/%s", r->anchor->name);
1340 snprintf(&path[len], MAXPATHLEN - len,
1341 "%s", r->anchor->name);
1342 name = r->anchor->name;
1344 name = r->anchor->path;
1348 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1349 if (pfctl_add_pool(pf, &r->rpool, r->af))
1351 pr.pool_ticket = pf->paddr.ticket;
1352 memcpy(&pr.rule, r, sizeof(pr.rule));
1353 if (r->anchor && strlcpy(pr.anchor_call, name,
1354 sizeof(pr.anchor_call)) >= sizeof(pr.anchor_call))
1355 errx(1, "pfctl_load_rule: strlcpy");
1356 if (ioctl(pf->dev, DIOCADDRULE, &pr))
1357 err(1, "DIOCADDRULE");
1360 if (pf->opts & PF_OPT_VERBOSE) {
1361 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1362 print_rule(r, r->anchor ? r->anchor->name : "",
1363 pf->opts & PF_OPT_VERBOSE2,
1364 pf->opts & PF_OPT_NUMERIC);
1367 pfctl_clear_pool(&r->rpool);
1372 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
1375 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
1376 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
1377 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1378 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
1380 errx(1, "qtype not configured");
1381 else if (errno == ENODEV)
1382 errx(1, "%s: driver does not support "
1385 err(1, "DIOCADDALTQ");
1388 pfaltq_store(&pf->paltq->altq);
1394 pfctl_rules(int dev, char *filename, int opts, int optimize,
1395 char *anchorname, struct pfr_buffer *trans)
1397 #define ERR(x) do { warn(x); goto _error; } while(0)
1398 #define ERRX(x) do { warnx(x); goto _error; } while(0)
1400 struct pfr_buffer *t, buf;
1401 struct pfioc_altq pa;
1403 struct pf_ruleset *rs;
1404 struct pfr_table trs;
1408 RB_INIT(&pf_anchors);
1409 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
1410 pf_init_ruleset(&pf_main_anchor.ruleset);
1411 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
1412 if (trans == NULL) {
1413 bzero(&buf, sizeof(buf));
1414 buf.pfrb_type = PFRB_TRANS;
1419 osize = t->pfrb_size;
1422 memset(&pa, 0, sizeof(pa));
1423 memset(&pf, 0, sizeof(pf));
1424 memset(&trs, 0, sizeof(trs));
1425 if ((path = calloc(1, MAXPATHLEN)) == NULL)
1426 ERRX("pfctl_rules: calloc");
1427 if (strlcpy(trs.pfrt_anchor, anchorname,
1428 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
1429 ERRX("pfctl_rules: strlcpy");
1432 pf.optimize = optimize;
1433 pf.loadopt = loadopt;
1435 /* non-brace anchor, create without resolving the path */
1436 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
1437 ERRX("pfctl_rules: calloc");
1438 rs = &pf.anchor->ruleset;
1439 pf_init_ruleset(rs);
1440 rs->anchor = pf.anchor;
1441 if (strlcpy(pf.anchor->path, anchorname,
1442 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
1443 errx(1, "pfctl_add_rule: strlcpy");
1444 if (strlcpy(pf.anchor->name, anchorname,
1445 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
1446 errx(1, "pfctl_add_rule: strlcpy");
1449 pf.astack[0] = pf.anchor;
1452 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
1455 pfctl_init_options(&pf);
1457 if ((opts & PF_OPT_NOACTION) == 0) {
1459 * XXX For the time being we need to open transactions for
1460 * the main ruleset before parsing, because tables are still
1461 * loaded at parse time.
1463 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor))
1464 ERRX("pfctl_rules");
1465 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
1467 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
1468 if (pf.loadopt & PFCTL_FLAG_TABLE)
1469 pf.astack[0]->ruleset.tticket =
1470 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
1473 if (parse_config(filename, &pf) < 0) {
1474 if ((opts & PF_OPT_NOACTION) == 0)
1475 ERRX("Syntax error in config file: "
1476 "pf rules not loaded");
1481 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
1482 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
1483 (pf.loadopt & PFCTL_FLAG_NAT &&
1484 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
1485 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
1486 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
1487 (pf.loadopt & PFCTL_FLAG_FILTER &&
1488 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
1489 if ((opts & PF_OPT_NOACTION) == 0)
1490 ERRX("Unable to load rules into kernel");
1495 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
1496 if (check_commit_altq(dev, opts) != 0)
1497 ERRX("errors in altq config");
1499 /* process "load anchor" directives */
1501 if (pfctl_load_anchors(dev, &pf, t) == -1)
1502 ERRX("load anchors");
1504 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
1506 if (pfctl_load_options(&pf))
1508 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
1514 if (trans == NULL) { /* main ruleset */
1515 if ((opts & PF_OPT_NOACTION) == 0)
1516 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
1517 err(1, "DIOCXROLLBACK");
1519 } else { /* sub ruleset */
1528 pfctl_fopen(const char *name, const char *mode)
1533 fp = fopen(name, mode);
1536 if (fstat(fileno(fp), &st)) {
1540 if (S_ISDIR(st.st_mode)) {
1549 pfctl_init_options(struct pfctl *pf)
1552 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1553 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
1554 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1555 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1556 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
1557 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1558 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
1559 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
1560 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
1561 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
1562 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
1563 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
1564 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
1565 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
1566 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
1567 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
1568 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
1569 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
1570 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
1571 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
1573 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
1574 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
1575 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
1576 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
1578 pf->debug = PF_DEBUG_URGENT;
1582 pfctl_load_options(struct pfctl *pf)
1586 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1590 for (i = 0; i < PF_LIMIT_MAX; i++) {
1591 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
1593 if (pfctl_load_limit(pf, i, pf->limit[i]))
1598 * If we've set the limit, but haven't explicitly set adaptive
1599 * timeouts, do it now with a start of 60% and end of 120%.
1601 if (pf->limit_set[PF_LIMIT_STATES] &&
1602 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
1603 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
1604 pf->timeout[PFTM_ADAPTIVE_START] =
1605 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
1606 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
1607 pf->timeout[PFTM_ADAPTIVE_END] =
1608 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
1609 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
1613 for (i = 0; i < PFTM_MAX; i++) {
1614 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
1616 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
1621 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
1622 if (pfctl_load_debug(pf, pf->debug))
1626 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
1627 if (pfctl_load_logif(pf, pf->ifname))
1631 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
1632 if (pfctl_load_hostid(pf, pf->hostid))
1639 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
1644 for (i = 0; pf_limits[i].name; i++) {
1645 if (strcasecmp(opt, pf_limits[i].name) == 0) {
1646 pf->limit[pf_limits[i].index] = limit;
1647 pf->limit_set[pf_limits[i].index] = 1;
1651 if (pf_limits[i].name == NULL) {
1652 warnx("Bad pool name.");
1656 if (pf->opts & PF_OPT_VERBOSE)
1657 printf("set limit %s %d\n", opt, limit);
1663 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
1665 struct pfioc_limit pl;
1667 memset(&pl, 0, sizeof(pl));
1670 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
1672 warnx("Current pool size exceeds requested hard limit");
1674 warnx("DIOCSETLIMIT");
1681 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
1685 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1688 for (i = 0; pf_timeouts[i].name; i++) {
1689 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
1690 pf->timeout[pf_timeouts[i].timeout] = seconds;
1691 pf->timeout_set[pf_timeouts[i].timeout] = 1;
1696 if (pf_timeouts[i].name == NULL) {
1697 warnx("Bad timeout name.");
1702 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
1703 printf("set timeout %s %d\n", opt, seconds);
1709 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
1713 memset(&pt, 0, sizeof(pt));
1714 pt.timeout = timeout;
1715 pt.seconds = seconds;
1716 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
1717 warnx("DIOCSETTIMEOUT");
1724 pfctl_set_optimization(struct pfctl *pf, const char *opt)
1726 const struct pf_hint *hint;
1729 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1732 for (i = 0; pf_hints[i].name; i++)
1733 if (strcasecmp(opt, pf_hints[i].name) == 0)
1736 hint = pf_hints[i].hint;
1738 warnx("invalid state timeouts optimization");
1742 for (i = 0; hint[i].name; i++)
1743 if ((r = pfctl_set_timeout(pf, hint[i].name,
1744 hint[i].timeout, 1)))
1747 if (pf->opts & PF_OPT_VERBOSE)
1748 printf("set optimization %s\n", opt);
1754 pfctl_set_logif(struct pfctl *pf, char *ifname)
1757 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1760 if (!strcmp(ifname, "none")) {
1764 pf->ifname = strdup(ifname);
1766 errx(1, "pfctl_set_logif: strdup");
1770 if (pf->opts & PF_OPT_VERBOSE)
1771 printf("set loginterface %s\n", ifname);
1777 pfctl_load_logif(struct pfctl *pf, char *ifname)
1781 memset(&pi, 0, sizeof(pi));
1782 if (ifname && strlcpy(pi.ifname, ifname,
1783 sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
1784 warnx("pfctl_load_logif: strlcpy");
1787 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
1788 warnx("DIOCSETSTATUSIF");
1795 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
1797 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1802 pf->hostid = hostid;
1805 if (pf->opts & PF_OPT_VERBOSE)
1806 printf("set hostid 0x%08x\n", ntohl(hostid));
1812 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
1814 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
1815 warnx("DIOCSETHOSTID");
1822 pfctl_set_debug(struct pfctl *pf, char *d)
1826 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1829 if (!strcmp(d, "none"))
1830 pf->debug = PF_DEBUG_NONE;
1831 else if (!strcmp(d, "urgent"))
1832 pf->debug = PF_DEBUG_URGENT;
1833 else if (!strcmp(d, "misc"))
1834 pf->debug = PF_DEBUG_MISC;
1835 else if (!strcmp(d, "loud"))
1836 pf->debug = PF_DEBUG_NOISY;
1838 warnx("unknown debug level \"%s\"", d);
1845 if ((pf->opts & PF_OPT_NOACTION) == 0)
1846 if (ioctl(dev, DIOCSETDEBUG, &level))
1847 err(1, "DIOCSETDEBUG");
1849 if (pf->opts & PF_OPT_VERBOSE)
1850 printf("set debug %s\n", d);
1856 pfctl_load_debug(struct pfctl *pf, unsigned int level)
1858 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
1859 warnx("DIOCSETDEBUG");
1866 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
1868 struct pfioc_iface pi;
1870 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1873 bzero(&pi, sizeof(pi));
1875 pi.pfiio_flags = flags;
1877 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
1878 sizeof(pi.pfiio_name))
1879 errx(1, "pfctl_set_interface_flags: strlcpy");
1881 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1883 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
1884 err(1, "DIOCCLRIFFLAG");
1886 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
1887 err(1, "DIOCSETIFFLAG");
1894 pfctl_debug(int dev, u_int32_t level, int opts)
1896 if (ioctl(dev, DIOCSETDEBUG, &level))
1897 err(1, "DIOCSETDEBUG");
1898 if ((opts & PF_OPT_QUIET) == 0) {
1899 fprintf(stderr, "debug level set to '");
1902 fprintf(stderr, "none");
1904 case PF_DEBUG_URGENT:
1905 fprintf(stderr, "urgent");
1908 fprintf(stderr, "misc");
1910 case PF_DEBUG_NOISY:
1911 fprintf(stderr, "loud");
1914 fprintf(stderr, "<invalid>");
1917 fprintf(stderr, "'\n");
1922 pfctl_test_altqsupport(int dev, int opts)
1924 struct pfioc_altq pa;
1926 if (ioctl(dev, DIOCGETALTQS, &pa)) {
1927 if (errno == ENODEV) {
1928 if (opts & PF_OPT_VERBOSE)
1929 fprintf(stderr, "No ALTQ support in kernel\n"
1930 "ALTQ related functions disabled\n");
1933 err(1, "DIOCGETALTQS");
1939 pfctl_show_anchors(int dev, int opts, char *anchorname)
1941 struct pfioc_ruleset pr;
1944 memset(&pr, 0, sizeof(pr));
1945 memcpy(pr.path, anchorname, sizeof(pr.path));
1946 if (ioctl(dev, DIOCGETRULESETS, &pr)) {
1947 if (errno == EINVAL)
1948 fprintf(stderr, "Anchor '%s' not found.\n",
1951 err(1, "DIOCGETRULESETS");
1955 for (nr = 0; nr < mnr; ++nr) {
1956 char sub[MAXPATHLEN];
1959 if (ioctl(dev, DIOCGETRULESET, &pr))
1960 err(1, "DIOCGETRULESET");
1961 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
1965 strlcat(sub, pr.path, sizeof(sub));
1966 strlcat(sub, "/", sizeof(sub));
1968 strlcat(sub, pr.name, sizeof(sub));
1969 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
1970 printf(" %s\n", sub);
1971 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
1978 pfctl_lookup_option(char *cmd, const char * const *list)
1980 if (cmd != NULL && *cmd)
1981 for (; *list; list++)
1982 if (!strncmp(cmd, *list, strlen(cmd)))
1988 main(int argc, char *argv[])
1992 int mode = O_RDONLY;
1994 int optimize = PF_OPTIMIZE_BASIC;
1995 char anchorname[MAXPATHLEN];
2001 while ((ch = getopt(argc, argv,
2002 "a:AdD:eqf:F:ghi:k:K:mnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2008 opts |= PF_OPT_DISABLE;
2012 if (pfctl_cmdline_symset(optarg) < 0)
2013 warnx("could not parse macro definition %s",
2017 opts |= PF_OPT_ENABLE;
2021 opts |= PF_OPT_QUIET;
2024 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2025 if (clearopt == NULL) {
2026 warnx("Unknown flush modifier '%s'", optarg);
2035 if (state_killers >= 2) {
2036 warnx("can only specify -k twice");
2040 state_kill[state_killers++] = optarg;
2044 if (src_node_killers >= 2) {
2045 warnx("can only specify -K twice");
2049 src_node_kill[src_node_killers++] = optarg;
2053 opts |= PF_OPT_MERGE;
2056 opts |= PF_OPT_NOACTION;
2059 loadopt |= PFCTL_FLAG_NAT;
2062 opts |= PF_OPT_USEDNS;
2069 opts |= PF_OPT_DEBUG;
2072 loadopt |= PFCTL_FLAG_ALTQ;
2075 loadopt |= PFCTL_FLAG_FILTER;
2078 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2079 if (optiopt == NULL) {
2080 warnx("Unknown optimization '%s'", optarg);
2083 opts |= PF_OPT_OPTIMIZE;
2086 loadopt |= PFCTL_FLAG_OPTION;
2092 opts |= PF_OPT_NUMERIC;
2095 showopt = pfctl_lookup_option(optarg, showopt_list);
2096 if (showopt == NULL) {
2097 warnx("Unknown show modifier '%s'", optarg);
2105 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2106 if (tblcmdopt == NULL) {
2107 warnx("Unknown table command '%s'", optarg);
2112 if (opts & PF_OPT_VERBOSE)
2113 opts |= PF_OPT_VERBOSE2;
2114 opts |= PF_OPT_VERBOSE;
2117 debugopt = pfctl_lookup_option(optarg, debugopt_list);
2118 if (debugopt == NULL) {
2119 warnx("Unknown debug level '%s'", optarg);
2125 opts |= PF_OPT_CLRRULECTRS;
2136 if (tblcmdopt != NULL) {
2141 loadopt |= PFCTL_FLAG_TABLE;
2144 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
2145 } else if (argc != optind) {
2146 warnx("unknown command line argument: %s ...", argv[optind]);
2153 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2154 errx(1, "pfctl: calloc");
2155 memset(anchorname, 0, sizeof(anchorname));
2156 if (anchoropt != NULL) {
2157 int len = strlen(anchoropt);
2159 if (anchoropt[len - 1] == '*') {
2160 if (len >= 2 && anchoropt[len - 2] == '/')
2161 anchoropt[len - 2] = '\0';
2163 anchoropt[len - 1] = '\0';
2164 opts |= PF_OPT_RECURSE;
2166 if (strlcpy(anchorname, anchoropt,
2167 sizeof(anchorname)) >= sizeof(anchorname))
2168 errx(1, "anchor name '%s' too long",
2170 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE;
2173 if ((opts & PF_OPT_NOACTION) == 0) {
2174 dev = open(pf_device, mode);
2176 err(1, "%s", pf_device);
2177 altqsupport = pfctl_test_altqsupport(dev, opts);
2179 dev = open(pf_device, O_RDONLY);
2181 opts |= PF_OPT_DUMMYACTION;
2182 /* turn off options */
2183 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
2184 clearopt = showopt = debugopt = NULL;
2185 #if !defined(ENABLE_ALTQ)
2192 if (opts & PF_OPT_DISABLE)
2193 if (pfctl_disable(dev, opts))
2196 if (showopt != NULL) {
2199 pfctl_show_anchors(dev, opts, anchorname);
2202 pfctl_load_fingerprints(dev, opts);
2203 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
2207 pfctl_load_fingerprints(dev, opts);
2208 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
2212 pfctl_load_fingerprints(dev, opts);
2213 pfctl_show_nat(dev, opts, anchorname);
2216 pfctl_show_altq(dev, ifaceopt, opts,
2217 opts & PF_OPT_VERBOSE2);
2220 pfctl_show_states(dev, ifaceopt, opts);
2223 pfctl_show_src_nodes(dev, opts);
2226 pfctl_show_status(dev, opts);
2229 pfctl_show_timeouts(dev, opts);
2232 pfctl_show_limits(dev, opts);
2235 opts |= PF_OPT_SHOWALL;
2236 pfctl_load_fingerprints(dev, opts);
2238 pfctl_show_nat(dev, opts, anchorname);
2239 pfctl_show_rules(dev, path, opts, 0, anchorname, 0);
2240 pfctl_show_altq(dev, ifaceopt, opts, 0);
2241 pfctl_show_states(dev, ifaceopt, opts);
2242 pfctl_show_src_nodes(dev, opts);
2243 pfctl_show_status(dev, opts);
2244 pfctl_show_rules(dev, path, opts, 1, anchorname, 0);
2245 pfctl_show_timeouts(dev, opts);
2246 pfctl_show_limits(dev, opts);
2247 pfctl_show_tables(anchorname, opts);
2248 pfctl_show_fingerprints(opts);
2251 pfctl_show_tables(anchorname, opts);
2254 pfctl_load_fingerprints(dev, opts);
2255 pfctl_show_fingerprints(opts);
2258 pfctl_show_ifaces(ifaceopt, opts);
2263 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL)
2264 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
2267 if (clearopt != NULL) {
2268 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2269 errx(1, "anchor names beginning with '_' cannot "
2270 "be modified from the command line");
2272 switch (*clearopt) {
2274 pfctl_clear_rules(dev, opts, anchorname);
2277 pfctl_clear_nat(dev, opts, anchorname);
2280 pfctl_clear_altq(dev, opts);
2283 pfctl_clear_states(dev, ifaceopt, opts);
2286 pfctl_clear_src_nodes(dev, opts);
2289 pfctl_clear_stats(dev, opts);
2292 pfctl_clear_rules(dev, opts, anchorname);
2293 pfctl_clear_nat(dev, opts, anchorname);
2294 pfctl_clear_tables(anchorname, opts);
2296 pfctl_clear_altq(dev, opts);
2297 pfctl_clear_states(dev, ifaceopt, opts);
2298 pfctl_clear_src_nodes(dev, opts);
2299 pfctl_clear_stats(dev, opts);
2300 pfctl_clear_fingerprints(dev, opts);
2301 pfctl_clear_interface_flags(dev, opts);
2305 pfctl_clear_fingerprints(dev, opts);
2308 pfctl_clear_tables(anchorname, opts);
2312 if (state_killers) {
2313 if (!strcmp(state_kill[0], "label"))
2314 pfctl_label_kill_states(dev, ifaceopt, opts);
2315 else if (!strcmp(state_kill[0], "id"))
2316 pfctl_id_kill_states(dev, ifaceopt, opts);
2318 pfctl_net_kill_states(dev, ifaceopt, opts);
2321 if (src_node_killers)
2322 pfctl_kill_src_nodes(dev, ifaceopt, opts);
2324 if (tblcmdopt != NULL) {
2325 error = pfctl_command_tables(argc, argv, tableopt,
2326 tblcmdopt, rulesopt, anchorname, opts);
2329 if (optiopt != NULL) {
2335 optimize |= PF_OPTIMIZE_BASIC;
2339 optimize |= PF_OPTIMIZE_PROFILE;
2344 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
2346 if (pfctl_clear_interface_flags(dev, opts | PF_OPT_QUIET))
2349 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
2350 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
2351 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
2354 if (rulesopt != NULL) {
2355 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2356 errx(1, "anchor names beginning with '_' cannot "
2357 "be modified from the command line");
2358 if (pfctl_rules(dev, rulesopt, opts, optimize,
2361 else if (!(opts & PF_OPT_NOACTION) &&
2362 (loadopt & PFCTL_FLAG_TABLE))
2363 warn_namespace_collision(NULL);
2366 if (opts & PF_OPT_ENABLE)
2367 if (pfctl_enable(dev, opts))
2370 if (debugopt != NULL) {
2371 switch (*debugopt) {
2373 pfctl_debug(dev, PF_DEBUG_NONE, opts);
2376 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
2379 pfctl_debug(dev, PF_DEBUG_MISC, opts);
2382 pfctl_debug(dev, PF_DEBUG_NOISY, opts);