1 /* $OpenBSD: pfctl.c,v 1.278 2008/08/31 20:18:17 jmc Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2001 Daniel Hartmeier
7 * Copyright (c) 2002,2003 Henning Brauer
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * - Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * - Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials provided
19 * with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 */
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38
39 #define PFIOC_USE_LATEST
40
41 #include <sys/types.h>
42 #include <sys/ioctl.h>
43 #include <sys/nv.h>
44 #include <sys/socket.h>
45 #include <sys/stat.h>
46 #include <sys/endian.h>
47
48 #include <net/if.h>
49 #include <netinet/in.h>
50 #include <net/pfvar.h>
51 #include <arpa/inet.h>
52 #include <net/altq/altq.h>
53 #include <sys/sysctl.h>
54
55 #include <err.h>
56 #include <errno.h>
57 #include <fcntl.h>
58 #include <libpfctl.h>
59 #include <limits.h>
60 #include <netdb.h>
61 #include <stdint.h>
62 #include <stdio.h>
63 #include <stdlib.h>
64 #include <string.h>
65 #include <unistd.h>
66
67 #include "pfctl_parser.h"
68 #include "pfctl.h"
69
70 void usage(void);
71 int pfctl_enable(int, int);
72 int pfctl_disable(int, int);
73 int pfctl_clear_stats(int, int);
74 int pfctl_get_skip_ifaces(void);
75 int pfctl_check_skip_ifaces(char *);
76 int pfctl_adjust_skip_ifaces(struct pfctl *);
77 int pfctl_clear_interface_flags(int, int);
78 int pfctl_clear_rules(int, int, char *);
79 int pfctl_clear_nat(int, int, char *);
80 int pfctl_clear_altq(int, int);
81 int pfctl_clear_src_nodes(int, int);
82 int pfctl_clear_iface_states(int, const char *, int);
83 void pfctl_addrprefix(char *, struct pf_addr *);
84 int pfctl_kill_src_nodes(int, const char *, int);
85 int pfctl_net_kill_states(int, const char *, int);
86 int pfctl_gateway_kill_states(int, const char *, int);
87 int pfctl_label_kill_states(int, const char *, int);
88 int pfctl_id_kill_states(int, const char *, int);
89 void pfctl_init_options(struct pfctl *);
90 int pfctl_load_options(struct pfctl *);
91 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
92 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
93 int pfctl_load_debug(struct pfctl *, unsigned int);
94 int pfctl_load_logif(struct pfctl *, char *);
95 int pfctl_load_hostid(struct pfctl *, u_int32_t);
96 int pfctl_load_syncookies(struct pfctl *, u_int8_t);
97 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
98 char *);
99 void pfctl_print_rule_counters(struct pfctl_rule *, int);
100 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int);
101 int pfctl_show_nat(int, int, char *);
102 int pfctl_show_src_nodes(int, int);
103 int pfctl_show_states(int, const char *, int);
104 int pfctl_show_status(int, int);
105 int pfctl_show_running(int);
106 int pfctl_show_timeouts(int, int);
107 int pfctl_show_limits(int, int);
108 void pfctl_debug(int, u_int32_t, int);
109 int pfctl_test_altqsupport(int, int);
110 int pfctl_show_anchors(int, int, char *);
111 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *);
112 int pfctl_load_ruleset(struct pfctl *, char *,
113 struct pfctl_ruleset *, int, int);
114 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
115 const char *pfctl_lookup_option(char *, const char * const *);
116
117 static struct pfctl_anchor_global pf_anchors;
118 static struct pfctl_anchor pf_main_anchor;
119 static struct pfr_buffer skip_b;
120
121 static const char *clearopt;
122 static char *rulesopt;
123 static const char *showopt;
124 static const char *debugopt;
125 static char *anchoropt;
126 static const char *optiopt = NULL;
127 static const char *pf_device = "/dev/pf";
128 static char *ifaceopt;
129 static char *tableopt;
130 static const char *tblcmdopt;
131 static int src_node_killers;
132 static char *src_node_kill[2];
133 static int state_killers;
134 static char *state_kill[2];
135 int loadopt;
136 int altqsupport;
137
138 int dev = -1;
139 static int first_title = 1;
140 static int labels = 0;
141
142 #define INDENT(d, o) do { \
143 if (o) { \
144 int i; \
145 for (i=0; i < d; i++) \
146 printf(" "); \
147 } \
148 } while (0); \
149
150
151 static const struct {
152 const char *name;
153 int index;
154 } pf_limits[] = {
155 { "states", PF_LIMIT_STATES },
156 { "src-nodes", PF_LIMIT_SRC_NODES },
157 { "frags", PF_LIMIT_FRAGS },
158 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
159 { NULL, 0 }
160 };
161
162 struct pf_hint {
163 const char *name;
164 int timeout;
165 };
166 static const struct pf_hint pf_hint_normal[] = {
167 { "tcp.first", 2 * 60 },
168 { "tcp.opening", 30 },
169 { "tcp.established", 24 * 60 * 60 },
170 { "tcp.closing", 15 * 60 },
171 { "tcp.finwait", 45 },
172 { "tcp.closed", 90 },
173 { "tcp.tsdiff", 30 },
174 { NULL, 0 }
175 };
176 static const struct pf_hint pf_hint_satellite[] = {
177 { "tcp.first", 3 * 60 },
178 { "tcp.opening", 30 + 5 },
179 { "tcp.established", 24 * 60 * 60 },
180 { "tcp.closing", 15 * 60 + 5 },
181 { "tcp.finwait", 45 + 5 },
182 { "tcp.closed", 90 + 5 },
183 { "tcp.tsdiff", 60 },
184 { NULL, 0 }
185 };
186 static const struct pf_hint pf_hint_conservative[] = {
187 { "tcp.first", 60 * 60 },
188 { "tcp.opening", 15 * 60 },
189 { "tcp.established", 5 * 24 * 60 * 60 },
190 { "tcp.closing", 60 * 60 },
191 { "tcp.finwait", 10 * 60 },
192 { "tcp.closed", 3 * 60 },
193 { "tcp.tsdiff", 60 },
194 { NULL, 0 }
195 };
196 static const struct pf_hint pf_hint_aggressive[] = {
197 { "tcp.first", 30 },
198 { "tcp.opening", 5 },
199 { "tcp.established", 5 * 60 * 60 },
200 { "tcp.closing", 60 },
201 { "tcp.finwait", 30 },
202 { "tcp.closed", 30 },
203 { "tcp.tsdiff", 10 },
204 { NULL, 0 }
205 };
206
207 static const struct {
208 const char *name;
209 const struct pf_hint *hint;
210 } pf_hints[] = {
211 { "normal", pf_hint_normal },
212 { "satellite", pf_hint_satellite },
213 { "high-latency", pf_hint_satellite },
214 { "conservative", pf_hint_conservative },
215 { "aggressive", pf_hint_aggressive },
216 { NULL, NULL }
217 };
218
219 static const char * const clearopt_list[] = {
220 "nat", "queue", "rules", "Sources",
221 "states", "info", "Tables", "osfp", "all", NULL
222 };
223
224 static const char * const showopt_list[] = {
225 "nat", "queue", "rules", "Anchors", "Sources", "states", "info",
226 "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp",
227 "Running", "all", NULL
228 };
229
230 static const char * const tblcmdopt_list[] = {
231 "kill", "flush", "add", "delete", "load", "replace", "show",
232 "test", "zero", "expire", NULL
233 };
234
235 static const char * const debugopt_list[] = {
236 "none", "urgent", "misc", "loud", NULL
237 };
238
239 static const char * const optiopt_list[] = {
240 "none", "basic", "profile", NULL
241 };
242
243 void
usage(void)244 usage(void)
245 {
246 extern char *__progname;
247
248 fprintf(stderr,
249 "usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
250 "\t[-f file] [-i interface] [-K host | network]\n"
251 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
252 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
253 __progname);
254
255 exit(1);
256 }
257
258 /*
259 * Cache protocol number to name translations.
260 *
261 * Translation is performed a lot e.g., when dumping states and
262 * getprotobynumber is incredibly expensive.
263 *
264 * Note from the getprotobynumber(3) manpage:
265 * <quote>
266 * These functions use a thread-specific data space; if the data is needed
267 * for future use, it should be copied before any subsequent calls overwrite
268 * it. Only the Internet protocols are currently understood.
269 * </quote>
270 *
271 * Consequently we only cache the name and strdup it for safety.
272 *
273 * At the time of writing this comment the last entry in /etc/protocols is:
274 * divert 258 DIVERT # Divert pseudo-protocol [non IANA]
275 */
276 const char *
pfctl_proto2name(int proto)277 pfctl_proto2name(int proto)
278 {
279 static const char *pfctl_proto_cache[259];
280 struct protoent *p;
281
282 if (proto >= nitems(pfctl_proto_cache)) {
283 p = getprotobynumber(proto);
284 if (p == NULL) {
285 return (NULL);
286 }
287 return (p->p_name);
288 }
289
290 if (pfctl_proto_cache[proto] == NULL) {
291 p = getprotobynumber(proto);
292 if (p == NULL) {
293 return (NULL);
294 }
295 pfctl_proto_cache[proto] = strdup(p->p_name);
296 }
297
298 return (pfctl_proto_cache[proto]);
299 }
300
301 int
pfctl_enable(int dev,int opts)302 pfctl_enable(int dev, int opts)
303 {
304 if (ioctl(dev, DIOCSTART)) {
305 if (errno == EEXIST)
306 errx(1, "pf already enabled");
307 else if (errno == ESRCH)
308 errx(1, "pfil registeration failed");
309 else
310 err(1, "DIOCSTART");
311 }
312 if ((opts & PF_OPT_QUIET) == 0)
313 fprintf(stderr, "pf enabled\n");
314
315 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
316 if (errno != EEXIST)
317 err(1, "DIOCSTARTALTQ");
318
319 return (0);
320 }
321
322 int
pfctl_disable(int dev,int opts)323 pfctl_disable(int dev, int opts)
324 {
325 if (ioctl(dev, DIOCSTOP)) {
326 if (errno == ENOENT)
327 errx(1, "pf not enabled");
328 else
329 err(1, "DIOCSTOP");
330 }
331 if ((opts & PF_OPT_QUIET) == 0)
332 fprintf(stderr, "pf disabled\n");
333
334 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
335 if (errno != ENOENT)
336 err(1, "DIOCSTOPALTQ");
337
338 return (0);
339 }
340
341 int
pfctl_clear_stats(int dev,int opts)342 pfctl_clear_stats(int dev, int opts)
343 {
344 if (ioctl(dev, DIOCCLRSTATUS))
345 err(1, "DIOCCLRSTATUS");
346 if ((opts & PF_OPT_QUIET) == 0)
347 fprintf(stderr, "pf: statistics cleared\n");
348 return (0);
349 }
350
351 int
pfctl_get_skip_ifaces(void)352 pfctl_get_skip_ifaces(void)
353 {
354 bzero(&skip_b, sizeof(skip_b));
355 skip_b.pfrb_type = PFRB_IFACES;
356 for (;;) {
357 pfr_buf_grow(&skip_b, skip_b.pfrb_size);
358 skip_b.pfrb_size = skip_b.pfrb_msize;
359 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
360 err(1, "pfi_get_ifaces");
361 if (skip_b.pfrb_size <= skip_b.pfrb_msize)
362 break;
363 }
364 return (0);
365 }
366
367 int
pfctl_check_skip_ifaces(char * ifname)368 pfctl_check_skip_ifaces(char *ifname)
369 {
370 struct pfi_kif *p;
371 struct node_host *h = NULL, *n = NULL;
372
373 PFRB_FOREACH(p, &skip_b) {
374 if (!strcmp(ifname, p->pfik_name) &&
375 (p->pfik_flags & PFI_IFLAG_SKIP))
376 p->pfik_flags &= ~PFI_IFLAG_SKIP;
377 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
378 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
379 continue;
380
381 for (n = h; n != NULL; n = n->next) {
382 if (p->pfik_ifp == NULL)
383 continue;
384 if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
385 continue;
386
387 p->pfik_flags &= ~PFI_IFLAG_SKIP;
388 }
389 }
390 }
391 return (0);
392 }
393
394 int
pfctl_adjust_skip_ifaces(struct pfctl * pf)395 pfctl_adjust_skip_ifaces(struct pfctl *pf)
396 {
397 struct pfi_kif *p, *pp;
398 struct node_host *h = NULL, *n = NULL;
399
400 PFRB_FOREACH(p, &skip_b) {
401 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
402 continue;
403
404 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
405 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
406 continue;
407
408 for (n = h; n != NULL; n = n->next)
409 PFRB_FOREACH(pp, &skip_b) {
410 if (pp->pfik_ifp == NULL)
411 continue;
412
413 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
414 continue;
415
416 if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
417 pfctl_set_interface_flags(pf,
418 pp->pfik_name, PFI_IFLAG_SKIP, 1);
419 if (pp->pfik_flags & PFI_IFLAG_SKIP)
420 pp->pfik_flags &= ~PFI_IFLAG_SKIP;
421 }
422 }
423
424 PFRB_FOREACH(p, &skip_b) {
425 if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP))
426 continue;
427
428 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
429 }
430
431 return (0);
432 }
433
434 int
pfctl_clear_interface_flags(int dev,int opts)435 pfctl_clear_interface_flags(int dev, int opts)
436 {
437 struct pfioc_iface pi;
438
439 if ((opts & PF_OPT_NOACTION) == 0) {
440 bzero(&pi, sizeof(pi));
441 pi.pfiio_flags = PFI_IFLAG_SKIP;
442
443 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
444 err(1, "DIOCCLRIFFLAG");
445 if ((opts & PF_OPT_QUIET) == 0)
446 fprintf(stderr, "pf: interface flags reset\n");
447 }
448 return (0);
449 }
450
451 int
pfctl_clear_rules(int dev,int opts,char * anchorname)452 pfctl_clear_rules(int dev, int opts, char *anchorname)
453 {
454 struct pfr_buffer t;
455
456 memset(&t, 0, sizeof(t));
457 t.pfrb_type = PFRB_TRANS;
458 if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) ||
459 pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) ||
460 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
461 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
462 err(1, "pfctl_clear_rules");
463 if ((opts & PF_OPT_QUIET) == 0)
464 fprintf(stderr, "rules cleared\n");
465 return (0);
466 }
467
468 int
pfctl_clear_nat(int dev,int opts,char * anchorname)469 pfctl_clear_nat(int dev, int opts, char *anchorname)
470 {
471 struct pfr_buffer t;
472
473 memset(&t, 0, sizeof(t));
474 t.pfrb_type = PFRB_TRANS;
475 if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) ||
476 pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) ||
477 pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) ||
478 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
479 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
480 err(1, "pfctl_clear_nat");
481 if ((opts & PF_OPT_QUIET) == 0)
482 fprintf(stderr, "nat cleared\n");
483 return (0);
484 }
485
486 int
pfctl_clear_altq(int dev,int opts)487 pfctl_clear_altq(int dev, int opts)
488 {
489 struct pfr_buffer t;
490
491 if (!altqsupport)
492 return (-1);
493 memset(&t, 0, sizeof(t));
494 t.pfrb_type = PFRB_TRANS;
495 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
496 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
497 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
498 err(1, "pfctl_clear_altq");
499 if ((opts & PF_OPT_QUIET) == 0)
500 fprintf(stderr, "altq cleared\n");
501 return (0);
502 }
503
504 int
pfctl_clear_src_nodes(int dev,int opts)505 pfctl_clear_src_nodes(int dev, int opts)
506 {
507 if (ioctl(dev, DIOCCLRSRCNODES))
508 err(1, "DIOCCLRSRCNODES");
509 if ((opts & PF_OPT_QUIET) == 0)
510 fprintf(stderr, "source tracking entries cleared\n");
511 return (0);
512 }
513
514 int
pfctl_clear_iface_states(int dev,const char * iface,int opts)515 pfctl_clear_iface_states(int dev, const char *iface, int opts)
516 {
517 struct pfctl_kill kill;
518 unsigned int killed;
519
520 memset(&kill, 0, sizeof(kill));
521 if (iface != NULL && strlcpy(kill.ifname, iface,
522 sizeof(kill.ifname)) >= sizeof(kill.ifname))
523 errx(1, "invalid interface: %s", iface);
524
525 if (opts & PF_OPT_KILLMATCH)
526 kill.kill_match = true;
527
528 if (pfctl_clear_states(dev, &kill, &killed))
529 err(1, "DIOCCLRSTATES");
530 if ((opts & PF_OPT_QUIET) == 0)
531 fprintf(stderr, "%d states cleared\n", killed);
532 return (0);
533 }
534
535 void
pfctl_addrprefix(char * addr,struct pf_addr * mask)536 pfctl_addrprefix(char *addr, struct pf_addr *mask)
537 {
538 char *p;
539 const char *errstr;
540 int prefix, ret_ga, q, r;
541 struct addrinfo hints, *res;
542
543 if ((p = strchr(addr, '/')) == NULL)
544 return;
545
546 *p++ = '\0';
547 prefix = strtonum(p, 0, 128, &errstr);
548 if (errstr)
549 errx(1, "prefix is %s: %s", errstr, p);
550
551 bzero(&hints, sizeof(hints));
552 /* prefix only with numeric addresses */
553 hints.ai_flags |= AI_NUMERICHOST;
554
555 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
556 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
557 /* NOTREACHED */
558 }
559
560 if (res->ai_family == AF_INET && prefix > 32)
561 errx(1, "prefix too long for AF_INET");
562 else if (res->ai_family == AF_INET6 && prefix > 128)
563 errx(1, "prefix too long for AF_INET6");
564
565 q = prefix >> 3;
566 r = prefix & 7;
567 switch (res->ai_family) {
568 case AF_INET:
569 bzero(&mask->v4, sizeof(mask->v4));
570 mask->v4.s_addr = htonl((u_int32_t)
571 (0xffffffffffULL << (32 - prefix)));
572 break;
573 case AF_INET6:
574 bzero(&mask->v6, sizeof(mask->v6));
575 if (q > 0)
576 memset((void *)&mask->v6, 0xff, q);
577 if (r > 0)
578 *((u_char *)&mask->v6 + q) =
579 (0xff00 >> r) & 0xff;
580 break;
581 }
582 freeaddrinfo(res);
583 }
584
585 int
pfctl_kill_src_nodes(int dev,const char * iface,int opts)586 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
587 {
588 struct pfioc_src_node_kill psnk;
589 struct addrinfo *res[2], *resp[2];
590 struct sockaddr last_src, last_dst;
591 int killed, sources, dests;
592 int ret_ga;
593
594 killed = sources = dests = 0;
595
596 memset(&psnk, 0, sizeof(psnk));
597 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
598 sizeof(psnk.psnk_src.addr.v.a.mask));
599 memset(&last_src, 0xff, sizeof(last_src));
600 memset(&last_dst, 0xff, sizeof(last_dst));
601
602 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
603
604 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
605 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
606 /* NOTREACHED */
607 }
608 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
609 if (resp[0]->ai_addr == NULL)
610 continue;
611 /* We get lots of duplicates. Catch the easy ones */
612 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
613 continue;
614 last_src = *(struct sockaddr *)resp[0]->ai_addr;
615
616 psnk.psnk_af = resp[0]->ai_family;
617 sources++;
618
619 if (psnk.psnk_af == AF_INET)
620 psnk.psnk_src.addr.v.a.addr.v4 =
621 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
622 else if (psnk.psnk_af == AF_INET6)
623 psnk.psnk_src.addr.v.a.addr.v6 =
624 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
625 sin6_addr;
626 else
627 errx(1, "Unknown address family %d", psnk.psnk_af);
628
629 if (src_node_killers > 1) {
630 dests = 0;
631 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
632 sizeof(psnk.psnk_dst.addr.v.a.mask));
633 memset(&last_dst, 0xff, sizeof(last_dst));
634 pfctl_addrprefix(src_node_kill[1],
635 &psnk.psnk_dst.addr.v.a.mask);
636 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
637 &res[1]))) {
638 errx(1, "getaddrinfo: %s",
639 gai_strerror(ret_ga));
640 /* NOTREACHED */
641 }
642 for (resp[1] = res[1]; resp[1];
643 resp[1] = resp[1]->ai_next) {
644 if (resp[1]->ai_addr == NULL)
645 continue;
646 if (psnk.psnk_af != resp[1]->ai_family)
647 continue;
648
649 if (memcmp(&last_dst, resp[1]->ai_addr,
650 sizeof(last_dst)) == 0)
651 continue;
652 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
653
654 dests++;
655
656 if (psnk.psnk_af == AF_INET)
657 psnk.psnk_dst.addr.v.a.addr.v4 =
658 ((struct sockaddr_in *)resp[1]->
659 ai_addr)->sin_addr;
660 else if (psnk.psnk_af == AF_INET6)
661 psnk.psnk_dst.addr.v.a.addr.v6 =
662 ((struct sockaddr_in6 *)resp[1]->
663 ai_addr)->sin6_addr;
664 else
665 errx(1, "Unknown address family %d",
666 psnk.psnk_af);
667
668 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
669 err(1, "DIOCKILLSRCNODES");
670 killed += psnk.psnk_killed;
671 }
672 freeaddrinfo(res[1]);
673 } else {
674 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
675 err(1, "DIOCKILLSRCNODES");
676 killed += psnk.psnk_killed;
677 }
678 }
679
680 freeaddrinfo(res[0]);
681
682 if ((opts & PF_OPT_QUIET) == 0)
683 fprintf(stderr, "killed %d src nodes from %d sources and %d "
684 "destinations\n", killed, sources, dests);
685 return (0);
686 }
687
688 int
pfctl_net_kill_states(int dev,const char * iface,int opts)689 pfctl_net_kill_states(int dev, const char *iface, int opts)
690 {
691 struct pfctl_kill kill;
692 struct addrinfo *res[2], *resp[2];
693 struct sockaddr last_src, last_dst;
694 unsigned int newkilled;
695 int killed, sources, dests;
696 int ret_ga;
697
698 killed = sources = dests = 0;
699
700 memset(&kill, 0, sizeof(kill));
701 memset(&kill.src.addr.v.a.mask, 0xff,
702 sizeof(kill.src.addr.v.a.mask));
703 memset(&last_src, 0xff, sizeof(last_src));
704 memset(&last_dst, 0xff, sizeof(last_dst));
705 if (iface != NULL && strlcpy(kill.ifname, iface,
706 sizeof(kill.ifname)) >= sizeof(kill.ifname))
707 errx(1, "invalid interface: %s", iface);
708
709 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
710
711 if (opts & PF_OPT_KILLMATCH)
712 kill.kill_match = true;
713
714 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
715 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
716 /* NOTREACHED */
717 }
718 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
719 if (resp[0]->ai_addr == NULL)
720 continue;
721 /* We get lots of duplicates. Catch the easy ones */
722 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
723 continue;
724 last_src = *(struct sockaddr *)resp[0]->ai_addr;
725
726 kill.af = resp[0]->ai_family;
727 sources++;
728
729 if (kill.af == AF_INET)
730 kill.src.addr.v.a.addr.v4 =
731 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
732 else if (kill.af == AF_INET6)
733 kill.src.addr.v.a.addr.v6 =
734 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
735 sin6_addr;
736 else
737 errx(1, "Unknown address family %d", kill.af);
738
739 if (state_killers > 1) {
740 dests = 0;
741 memset(&kill.dst.addr.v.a.mask, 0xff,
742 sizeof(kill.dst.addr.v.a.mask));
743 memset(&last_dst, 0xff, sizeof(last_dst));
744 pfctl_addrprefix(state_kill[1],
745 &kill.dst.addr.v.a.mask);
746 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
747 &res[1]))) {
748 errx(1, "getaddrinfo: %s",
749 gai_strerror(ret_ga));
750 /* NOTREACHED */
751 }
752 for (resp[1] = res[1]; resp[1];
753 resp[1] = resp[1]->ai_next) {
754 if (resp[1]->ai_addr == NULL)
755 continue;
756 if (kill.af != resp[1]->ai_family)
757 continue;
758
759 if (memcmp(&last_dst, resp[1]->ai_addr,
760 sizeof(last_dst)) == 0)
761 continue;
762 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
763
764 dests++;
765
766 if (kill.af == AF_INET)
767 kill.dst.addr.v.a.addr.v4 =
768 ((struct sockaddr_in *)resp[1]->
769 ai_addr)->sin_addr;
770 else if (kill.af == AF_INET6)
771 kill.dst.addr.v.a.addr.v6 =
772 ((struct sockaddr_in6 *)resp[1]->
773 ai_addr)->sin6_addr;
774 else
775 errx(1, "Unknown address family %d",
776 kill.af);
777
778 if (pfctl_kill_states(dev, &kill, &newkilled))
779 err(1, "DIOCKILLSTATES");
780 killed += newkilled;
781 }
782 freeaddrinfo(res[1]);
783 } else {
784 if (pfctl_kill_states(dev, &kill, &newkilled))
785 err(1, "DIOCKILLSTATES");
786 killed += newkilled;
787 }
788 }
789
790 freeaddrinfo(res[0]);
791
792 if ((opts & PF_OPT_QUIET) == 0)
793 fprintf(stderr, "killed %d states from %d sources and %d "
794 "destinations\n", killed, sources, dests);
795 return (0);
796 }
797
798 int
pfctl_gateway_kill_states(int dev,const char * iface,int opts)799 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
800 {
801 struct pfctl_kill kill;
802 struct addrinfo *res, *resp;
803 struct sockaddr last_src;
804 unsigned int newkilled;
805 int killed = 0;
806 int ret_ga;
807
808 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
809 warnx("no gateway specified");
810 usage();
811 }
812
813 memset(&kill, 0, sizeof(kill));
814 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
815 sizeof(kill.rt_addr.addr.v.a.mask));
816 memset(&last_src, 0xff, sizeof(last_src));
817 if (iface != NULL && strlcpy(kill.ifname, iface,
818 sizeof(kill.ifname)) >= sizeof(kill.ifname))
819 errx(1, "invalid interface: %s", iface);
820
821 if (opts & PF_OPT_KILLMATCH)
822 kill.kill_match = true;
823
824 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
825
826 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
827 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
828 /* NOTREACHED */
829 }
830 for (resp = res; resp; resp = resp->ai_next) {
831 if (resp->ai_addr == NULL)
832 continue;
833 /* We get lots of duplicates. Catch the easy ones */
834 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
835 continue;
836 last_src = *(struct sockaddr *)resp->ai_addr;
837
838 kill.af = resp->ai_family;
839
840 if (kill.af == AF_INET)
841 kill.rt_addr.addr.v.a.addr.v4 =
842 ((struct sockaddr_in *)resp->ai_addr)->sin_addr;
843 else if (kill.af == AF_INET6)
844 kill.rt_addr.addr.v.a.addr.v6 =
845 ((struct sockaddr_in6 *)resp->ai_addr)->
846 sin6_addr;
847 else
848 errx(1, "Unknown address family %d", kill.af);
849
850 if (pfctl_kill_states(dev, &kill, &newkilled))
851 err(1, "DIOCKILLSTATES");
852 killed += newkilled;
853 }
854
855 freeaddrinfo(res);
856
857 if ((opts & PF_OPT_QUIET) == 0)
858 fprintf(stderr, "killed %d states\n", killed);
859 return (0);
860 }
861
862 int
pfctl_label_kill_states(int dev,const char * iface,int opts)863 pfctl_label_kill_states(int dev, const char *iface, int opts)
864 {
865 struct pfctl_kill kill;
866 unsigned int killed;
867
868 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
869 warnx("no label specified");
870 usage();
871 }
872 memset(&kill, 0, sizeof(kill));
873 if (iface != NULL && strlcpy(kill.ifname, iface,
874 sizeof(kill.ifname)) >= sizeof(kill.ifname))
875 errx(1, "invalid interface: %s", iface);
876
877 if (opts & PF_OPT_KILLMATCH)
878 kill.kill_match = true;
879
880 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
881 sizeof(kill.label))
882 errx(1, "label too long: %s", state_kill[1]);
883
884 if (pfctl_kill_states(dev, &kill, &killed))
885 err(1, "DIOCKILLSTATES");
886
887 if ((opts & PF_OPT_QUIET) == 0)
888 fprintf(stderr, "killed %d states\n", killed);
889
890 return (0);
891 }
892
893 int
pfctl_id_kill_states(int dev,const char * iface,int opts)894 pfctl_id_kill_states(int dev, const char *iface, int opts)
895 {
896 struct pfctl_kill kill;
897 unsigned int killed;
898
899 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
900 warnx("no id specified");
901 usage();
902 }
903
904 memset(&kill, 0, sizeof(kill));
905
906 if (opts & PF_OPT_KILLMATCH)
907 kill.kill_match = true;
908
909 if ((sscanf(state_kill[1], "%jx/%x",
910 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
911 }
912 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
913 kill.cmp.creatorid = 0;
914 } else {
915 warnx("wrong id format specified");
916 usage();
917 }
918 if (kill.cmp.id == 0) {
919 warnx("cannot kill id 0");
920 usage();
921 }
922
923 if (pfctl_kill_states(dev, &kill, &killed))
924 err(1, "DIOCKILLSTATES");
925
926 if ((opts & PF_OPT_QUIET) == 0)
927 fprintf(stderr, "killed %d states\n", killed);
928
929 return (0);
930 }
931
932 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,char * anchorname)933 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
934 u_int32_t ticket, int r_action, char *anchorname)
935 {
936 struct pfioc_pooladdr pp;
937 struct pf_pooladdr *pa;
938 u_int32_t pnr, mpnr;
939
940 memset(&pp, 0, sizeof(pp));
941 memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
942 pp.r_action = r_action;
943 pp.r_num = nr;
944 pp.ticket = ticket;
945 if (ioctl(dev, DIOCGETADDRS, &pp)) {
946 warn("DIOCGETADDRS");
947 return (-1);
948 }
949 mpnr = pp.nr;
950 TAILQ_INIT(&pool->list);
951 for (pnr = 0; pnr < mpnr; ++pnr) {
952 pp.nr = pnr;
953 if (ioctl(dev, DIOCGETADDR, &pp)) {
954 warn("DIOCGETADDR");
955 return (-1);
956 }
957 pa = calloc(1, sizeof(struct pf_pooladdr));
958 if (pa == NULL)
959 err(1, "calloc");
960 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
961 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
962 }
963
964 return (0);
965 }
966
967 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)968 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
969 {
970 struct pf_pooladdr *pa;
971
972 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
973 TAILQ_REMOVE(&src->list, pa, entries);
974 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
975 }
976 }
977
978 void
pfctl_clear_pool(struct pfctl_pool * pool)979 pfctl_clear_pool(struct pfctl_pool *pool)
980 {
981 struct pf_pooladdr *pa;
982
983 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
984 TAILQ_REMOVE(&pool->list, pa, entries);
985 free(pa);
986 }
987 }
988
989 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)990 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
991 {
992 if (opts & PF_OPT_DEBUG) {
993 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
994 "p", "sa", "sp", "da", "dp" };
995 int i;
996
997 printf(" [ Skip steps: ");
998 for (i = 0; i < PF_SKIP_COUNT; ++i) {
999 if (rule->skip[i].nr == rule->nr + 1)
1000 continue;
1001 printf("%s=", t[i]);
1002 if (rule->skip[i].nr == -1)
1003 printf("end ");
1004 else
1005 printf("%u ", rule->skip[i].nr);
1006 }
1007 printf("]\n");
1008
1009 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
1010 rule->qname, rule->qid, rule->pqname, rule->pqid);
1011 }
1012 if (opts & PF_OPT_VERBOSE) {
1013 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1014 "Bytes: %-10llu States: %-6ju]\n",
1015 (unsigned long long)rule->evaluations,
1016 (unsigned long long)(rule->packets[0] +
1017 rule->packets[1]),
1018 (unsigned long long)(rule->bytes[0] +
1019 rule->bytes[1]), (uintmax_t)rule->states_cur);
1020 if (!(opts & PF_OPT_DEBUG))
1021 printf(" [ Inserted: uid %u pid %u "
1022 "State Creations: %-6ju]\n",
1023 (unsigned)rule->cuid, (unsigned)rule->cpid,
1024 (uintmax_t)rule->states_tot);
1025 }
1026 }
1027
1028 void
pfctl_print_title(char * title)1029 pfctl_print_title(char *title)
1030 {
1031 if (!first_title)
1032 printf("\n");
1033 first_title = 0;
1034 printf("%s\n", title);
1035 }
1036
1037 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth)1038 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1039 char *anchorname, int depth)
1040 {
1041 struct pfioc_rule pr;
1042 struct pfctl_rule rule;
1043 u_int32_t nr, mnr, header = 0;
1044 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1045 int numeric = opts & PF_OPT_NUMERIC;
1046 int len = strlen(path);
1047 int brace;
1048 char *p;
1049
1050 if (path[0])
1051 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1052 else
1053 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1054
1055 memset(&pr, 0, sizeof(pr));
1056 memcpy(pr.anchor, path, sizeof(pr.anchor));
1057 if (opts & PF_OPT_SHOWALL) {
1058 pr.rule.action = PF_PASS;
1059 if (ioctl(dev, DIOCGETRULES, &pr)) {
1060 warn("DIOCGETRULES");
1061 goto error;
1062 }
1063 header++;
1064 }
1065 pr.rule.action = PF_SCRUB;
1066 if (ioctl(dev, DIOCGETRULES, &pr)) {
1067 warn("DIOCGETRULES");
1068 goto error;
1069 }
1070 if (opts & PF_OPT_SHOWALL) {
1071 if (format == PFCTL_SHOW_RULES && (pr.nr > 0 || header))
1072 pfctl_print_title("FILTER RULES:");
1073 else if (format == PFCTL_SHOW_LABELS && labels)
1074 pfctl_print_title("LABEL COUNTERS:");
1075 }
1076 mnr = pr.nr;
1077
1078 for (nr = 0; nr < mnr; ++nr) {
1079 pr.nr = nr;
1080 if (pfctl_get_clear_rule(dev, nr, pr.ticket, path, PF_SCRUB,
1081 &rule, pr.anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1082 warn("DIOCGETRULENV");
1083 goto error;
1084 }
1085
1086 if (pfctl_get_pool(dev, &rule.rpool,
1087 nr, pr.ticket, PF_SCRUB, path) != 0)
1088 goto error;
1089
1090 switch (format) {
1091 case PFCTL_SHOW_LABELS:
1092 break;
1093 case PFCTL_SHOW_RULES:
1094 if (rule.label[0] && (opts & PF_OPT_SHOWALL))
1095 labels = 1;
1096 print_rule(&rule, pr.anchor_call, rule_numbers, numeric);
1097 printf("\n");
1098 pfctl_print_rule_counters(&rule, opts);
1099 break;
1100 case PFCTL_SHOW_NOTHING:
1101 break;
1102 }
1103 pfctl_clear_pool(&rule.rpool);
1104 }
1105 pr.rule.action = PF_PASS;
1106 if (ioctl(dev, DIOCGETRULES, &pr)) {
1107 warn("DIOCGETRULES");
1108 goto error;
1109 }
1110 mnr = pr.nr;
1111 for (nr = 0; nr < mnr; ++nr) {
1112 pr.nr = nr;
1113 if (pfctl_get_clear_rule(dev, nr, pr.ticket, path, PF_PASS,
1114 &rule, pr.anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1115 warn("DIOCGETRULE");
1116 goto error;
1117 }
1118
1119 if (pfctl_get_pool(dev, &rule.rpool,
1120 nr, pr.ticket, PF_PASS, path) != 0)
1121 goto error;
1122
1123 switch (format) {
1124 case PFCTL_SHOW_LABELS: {
1125 bool show = false;
1126 int i = 0;
1127
1128 while (rule.label[i][0]) {
1129 printf("%s ", rule.label[i++]);
1130 show = true;
1131 }
1132
1133 if (show) {
1134 printf("%llu %llu %llu %llu"
1135 " %llu %llu %llu %ju\n",
1136 (unsigned long long)rule.evaluations,
1137 (unsigned long long)(rule.packets[0] +
1138 rule.packets[1]),
1139 (unsigned long long)(rule.bytes[0] +
1140 rule.bytes[1]),
1141 (unsigned long long)rule.packets[0],
1142 (unsigned long long)rule.bytes[0],
1143 (unsigned long long)rule.packets[1],
1144 (unsigned long long)rule.bytes[1],
1145 (uintmax_t)rule.states_tot);
1146 }
1147 break;
1148 }
1149 case PFCTL_SHOW_RULES:
1150 brace = 0;
1151 if (rule.label[0] && (opts & PF_OPT_SHOWALL))
1152 labels = 1;
1153 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1154 if (pr.anchor_call[0] &&
1155 ((((p = strrchr(pr.anchor_call, '_')) != NULL) &&
1156 ((void *)p == (void *)pr.anchor_call ||
1157 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
1158 brace++;
1159 if ((p = strrchr(pr.anchor_call, '/')) !=
1160 NULL)
1161 p++;
1162 else
1163 p = &pr.anchor_call[0];
1164 } else
1165 p = &pr.anchor_call[0];
1166
1167 print_rule(&rule, p, rule_numbers, numeric);
1168 if (brace)
1169 printf(" {\n");
1170 else
1171 printf("\n");
1172 pfctl_print_rule_counters(&rule, opts);
1173 if (brace) {
1174 pfctl_show_rules(dev, path, opts, format,
1175 p, depth + 1);
1176 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1177 printf("}\n");
1178 }
1179 break;
1180 case PFCTL_SHOW_NOTHING:
1181 break;
1182 }
1183 pfctl_clear_pool(&rule.rpool);
1184 }
1185 path[len] = '\0';
1186 return (0);
1187
1188 error:
1189 path[len] = '\0';
1190 return (-1);
1191 }
1192
1193 int
pfctl_show_nat(int dev,int opts,char * anchorname)1194 pfctl_show_nat(int dev, int opts, char *anchorname)
1195 {
1196 struct pfioc_rule pr;
1197 struct pfctl_rule rule;
1198 u_int32_t mnr, nr;
1199 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1200 int i, dotitle = opts & PF_OPT_SHOWALL;
1201
1202 memset(&pr, 0, sizeof(pr));
1203 memcpy(pr.anchor, anchorname, sizeof(pr.anchor));
1204 for (i = 0; i < 3; i++) {
1205 pr.rule.action = nattype[i];
1206 if (ioctl(dev, DIOCGETRULES, &pr)) {
1207 warn("DIOCGETRULES");
1208 return (-1);
1209 }
1210 mnr = pr.nr;
1211 for (nr = 0; nr < mnr; ++nr) {
1212 pr.nr = nr;
1213 if (pfctl_get_rule(dev, nr, pr.ticket, anchorname,
1214 nattype[i], &rule, pr.anchor_call)) {
1215 warn("DIOCGETRULE");
1216 return (-1);
1217 }
1218 if (pfctl_get_pool(dev, &rule.rpool, nr,
1219 pr.ticket, nattype[i], anchorname) != 0)
1220 return (-1);
1221 if (dotitle) {
1222 pfctl_print_title("TRANSLATION RULES:");
1223 dotitle = 0;
1224 }
1225 print_rule(&rule, pr.anchor_call,
1226 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1227 printf("\n");
1228 pfctl_print_rule_counters(&rule, opts);
1229 pfctl_clear_pool(&rule.rpool);
1230 }
1231 }
1232 return (0);
1233 }
1234
1235 int
pfctl_show_src_nodes(int dev,int opts)1236 pfctl_show_src_nodes(int dev, int opts)
1237 {
1238 struct pfioc_src_nodes psn;
1239 struct pf_src_node *p;
1240 char *inbuf = NULL, *newinbuf = NULL;
1241 unsigned int len = 0;
1242 int i;
1243
1244 memset(&psn, 0, sizeof(psn));
1245 for (;;) {
1246 psn.psn_len = len;
1247 if (len) {
1248 newinbuf = realloc(inbuf, len);
1249 if (newinbuf == NULL)
1250 err(1, "realloc");
1251 psn.psn_buf = inbuf = newinbuf;
1252 }
1253 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
1254 warn("DIOCGETSRCNODES");
1255 free(inbuf);
1256 return (-1);
1257 }
1258 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
1259 break;
1260 if (len == 0 && psn.psn_len == 0)
1261 goto done;
1262 if (len == 0 && psn.psn_len != 0)
1263 len = psn.psn_len;
1264 if (psn.psn_len == 0)
1265 goto done; /* no src_nodes */
1266 len *= 2;
1267 }
1268 p = psn.psn_src_nodes;
1269 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
1270 pfctl_print_title("SOURCE TRACKING NODES:");
1271 for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1272 print_src_node(p, opts);
1273 p++;
1274 }
1275 done:
1276 free(inbuf);
1277 return (0);
1278 }
1279
1280 int
pfctl_show_states(int dev,const char * iface,int opts)1281 pfctl_show_states(int dev, const char *iface, int opts)
1282 {
1283 struct pfctl_states states;
1284 struct pfctl_state *s;
1285 int dotitle = (opts & PF_OPT_SHOWALL);
1286
1287 memset(&states, 0, sizeof(states));
1288
1289 if (pfctl_get_states(dev, &states))
1290 return (-1);
1291
1292 TAILQ_FOREACH(s, &states.states, entry) {
1293 if (iface != NULL && strcmp(s->ifname, iface))
1294 continue;
1295 if (dotitle) {
1296 pfctl_print_title("STATES:");
1297 dotitle = 0;
1298 }
1299 print_state(s, opts);
1300 }
1301
1302 pfctl_free_states(&states);
1303
1304 return (0);
1305 }
1306
1307 int
pfctl_show_status(int dev,int opts)1308 pfctl_show_status(int dev, int opts)
1309 {
1310 struct pfctl_status *status;
1311 struct pfctl_syncookies cookies;
1312
1313 if ((status = pfctl_get_status(dev)) == NULL) {
1314 warn("DIOCGETSTATUS");
1315 return (-1);
1316 }
1317 if (pfctl_get_syncookies(dev, &cookies)) {
1318 pfctl_free_status(status);
1319 warn("DIOCGETSYNCOOKIES");
1320 return (-1);
1321 }
1322 if (opts & PF_OPT_SHOWALL)
1323 pfctl_print_title("INFO:");
1324 print_status(status, &cookies, opts);
1325 pfctl_free_status(status);
1326 return (0);
1327 }
1328
1329 int
pfctl_show_running(int dev)1330 pfctl_show_running(int dev)
1331 {
1332 struct pfctl_status *status;
1333 int running;
1334
1335 if ((status = pfctl_get_status(dev)) == NULL) {
1336 warn("DIOCGETSTATUS");
1337 return (-1);
1338 }
1339
1340 running = status->running;
1341
1342 print_running(status);
1343 pfctl_free_status(status);
1344 return (!running);
1345 }
1346
1347 int
pfctl_show_timeouts(int dev,int opts)1348 pfctl_show_timeouts(int dev, int opts)
1349 {
1350 struct pfioc_tm pt;
1351 int i;
1352
1353 if (opts & PF_OPT_SHOWALL)
1354 pfctl_print_title("TIMEOUTS:");
1355 memset(&pt, 0, sizeof(pt));
1356 for (i = 0; pf_timeouts[i].name; i++) {
1357 pt.timeout = pf_timeouts[i].timeout;
1358 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1359 err(1, "DIOCGETTIMEOUT");
1360 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1361 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1362 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1363 printf(" states");
1364 else
1365 printf("s");
1366 printf("\n");
1367 }
1368 return (0);
1369
1370 }
1371
1372 int
pfctl_show_limits(int dev,int opts)1373 pfctl_show_limits(int dev, int opts)
1374 {
1375 struct pfioc_limit pl;
1376 int i;
1377
1378 if (opts & PF_OPT_SHOWALL)
1379 pfctl_print_title("LIMITS:");
1380 memset(&pl, 0, sizeof(pl));
1381 for (i = 0; pf_limits[i].name; i++) {
1382 pl.index = pf_limits[i].index;
1383 if (ioctl(dev, DIOCGETLIMIT, &pl))
1384 err(1, "DIOCGETLIMIT");
1385 printf("%-13s ", pf_limits[i].name);
1386 if (pl.limit == UINT_MAX)
1387 printf("unlimited\n");
1388 else
1389 printf("hard limit %8u\n", pl.limit);
1390 }
1391 return (0);
1392 }
1393
1394 /* callbacks for rule/nat/rdr/addr */
1395 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af)1396 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
1397 {
1398 struct pf_pooladdr *pa;
1399
1400 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1401 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1402 err(1, "DIOCBEGINADDRS");
1403 }
1404
1405 pf->paddr.af = af;
1406 TAILQ_FOREACH(pa, &p->list, entries) {
1407 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1408 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1409 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1410 err(1, "DIOCADDADDR");
1411 }
1412 }
1413 return (0);
1414 }
1415
1416 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1417 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1418 const char *anchor_call)
1419 {
1420 u_int8_t rs_num;
1421 struct pfctl_rule *rule;
1422 struct pfctl_ruleset *rs;
1423 char *p;
1424
1425 rs_num = pf_get_ruleset_number(r->action);
1426 if (rs_num == PF_RULESET_MAX)
1427 errx(1, "Invalid rule type %d", r->action);
1428
1429 rs = &pf->anchor->ruleset;
1430
1431 if (anchor_call[0] && r->anchor == NULL) {
1432 /*
1433 * Don't make non-brace anchors part of the main anchor pool.
1434 */
1435 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1436 err(1, "pfctl_append_rule: calloc");
1437
1438 pf_init_ruleset(&r->anchor->ruleset);
1439 r->anchor->ruleset.anchor = r->anchor;
1440 if (strlcpy(r->anchor->path, anchor_call,
1441 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1442 errx(1, "pfctl_append_rule: strlcpy");
1443 if ((p = strrchr(anchor_call, '/')) != NULL) {
1444 if (!strlen(p))
1445 err(1, "pfctl_append_rule: bad anchor name %s",
1446 anchor_call);
1447 } else
1448 p = (char *)anchor_call;
1449 if (strlcpy(r->anchor->name, p,
1450 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1451 errx(1, "pfctl_append_rule: strlcpy");
1452 }
1453
1454 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1455 err(1, "calloc");
1456 bcopy(r, rule, sizeof(*rule));
1457 TAILQ_INIT(&rule->rpool.list);
1458 pfctl_move_pool(&r->rpool, &rule->rpool);
1459
1460 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1461 return (0);
1462 }
1463
1464 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a)1465 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a)
1466 {
1467 int osize = pf->trans->pfrb_size;
1468
1469 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1470 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1471 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1472 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1473 return (1);
1474 }
1475 if (a == pf->astack[0] && ((altqsupport &&
1476 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1477 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1478 return (2);
1479 }
1480 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1481 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1482 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1483 return (3);
1484 }
1485 if (pf->loadopt & PFCTL_FLAG_TABLE)
1486 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1487 return (4);
1488 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1489 return (5);
1490
1491 return (0);
1492 }
1493
1494 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1495 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1496 int rs_num, int depth)
1497 {
1498 struct pfctl_rule *r;
1499 int error, len = strlen(path);
1500 int brace = 0;
1501
1502 pf->anchor = rs->anchor;
1503
1504 if (path[0])
1505 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1506 else
1507 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1508
1509 if (depth) {
1510 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1511 brace++;
1512 if (pf->opts & PF_OPT_VERBOSE)
1513 printf(" {\n");
1514 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1515 (error = pfctl_ruleset_trans(pf,
1516 path, rs->anchor))) {
1517 printf("pfctl_load_rulesets: "
1518 "pfctl_ruleset_trans %d\n", error);
1519 goto error;
1520 }
1521 } else if (pf->opts & PF_OPT_VERBOSE)
1522 printf("\n");
1523
1524 }
1525
1526 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1527 pfctl_optimize_ruleset(pf, rs);
1528
1529 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1530 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1531
1532 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
1533 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
1534 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
1535 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
1536
1537 if ((error = pfctl_load_rule(pf, path, r, depth)))
1538 goto error;
1539 if (r->anchor) {
1540 if ((error = pfctl_load_ruleset(pf, path,
1541 &r->anchor->ruleset, rs_num, depth + 1)))
1542 goto error;
1543 } else if (pf->opts & PF_OPT_VERBOSE)
1544 printf("\n");
1545 free(r);
1546 }
1547 if (brace && pf->opts & PF_OPT_VERBOSE) {
1548 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1549 printf("}\n");
1550 }
1551 path[len] = '\0';
1552 return (0);
1553
1554 error:
1555 path[len] = '\0';
1556 return (error);
1557
1558 }
1559
1560 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)1561 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
1562 {
1563 u_int8_t rs_num = pf_get_ruleset_number(r->action);
1564 char *name;
1565 u_int32_t ticket;
1566 char anchor[PF_ANCHOR_NAME_SIZE];
1567 int len = strlen(path);
1568
1569 /* set up anchor before adding to path for anchor_call */
1570 if ((pf->opts & PF_OPT_NOACTION) == 0)
1571 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
1572 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1573 errx(1, "pfctl_load_rule: strlcpy");
1574
1575 if (r->anchor) {
1576 if (r->anchor->match) {
1577 if (path[0])
1578 snprintf(&path[len], MAXPATHLEN - len,
1579 "/%s", r->anchor->name);
1580 else
1581 snprintf(&path[len], MAXPATHLEN - len,
1582 "%s", r->anchor->name);
1583 name = r->anchor->name;
1584 } else
1585 name = r->anchor->path;
1586 } else
1587 name = "";
1588
1589 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1590 if (pfctl_add_pool(pf, &r->rpool, r->af))
1591 return (1);
1592 if (pfctl_add_rule(pf->dev, r, anchor, name, ticket,
1593 pf->paddr.ticket))
1594 err(1, "DIOCADDRULENV");
1595 }
1596
1597 if (pf->opts & PF_OPT_VERBOSE) {
1598 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1599 print_rule(r, r->anchor ? r->anchor->name : "",
1600 pf->opts & PF_OPT_VERBOSE2,
1601 pf->opts & PF_OPT_NUMERIC);
1602 }
1603 path[len] = '\0';
1604 pfctl_clear_pool(&r->rpool);
1605 return (0);
1606 }
1607
1608 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)1609 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
1610 {
1611 if (altqsupport &&
1612 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
1613 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
1614 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1615 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
1616 if (errno == ENXIO)
1617 errx(1, "qtype not configured");
1618 else if (errno == ENODEV)
1619 errx(1, "%s: driver does not support "
1620 "altq", a->ifname);
1621 else
1622 err(1, "DIOCADDALTQ");
1623 }
1624 }
1625 pfaltq_store(&pf->paltq->altq);
1626 }
1627 return (0);
1628 }
1629
1630 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)1631 pfctl_rules(int dev, char *filename, int opts, int optimize,
1632 char *anchorname, struct pfr_buffer *trans)
1633 {
1634 #define ERR(x) do { warn(x); goto _error; } while(0)
1635 #define ERRX(x) do { warnx(x); goto _error; } while(0)
1636
1637 struct pfr_buffer *t, buf;
1638 struct pfioc_altq pa;
1639 struct pfctl pf;
1640 struct pfctl_ruleset *rs;
1641 struct pfr_table trs;
1642 char *path;
1643 int osize;
1644
1645 RB_INIT(&pf_anchors);
1646 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
1647 pf_init_ruleset(&pf_main_anchor.ruleset);
1648 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
1649 if (trans == NULL) {
1650 bzero(&buf, sizeof(buf));
1651 buf.pfrb_type = PFRB_TRANS;
1652 t = &buf;
1653 osize = 0;
1654 } else {
1655 t = trans;
1656 osize = t->pfrb_size;
1657 }
1658
1659 memset(&pa, 0, sizeof(pa));
1660 pa.version = PFIOC_ALTQ_VERSION;
1661 memset(&pf, 0, sizeof(pf));
1662 memset(&trs, 0, sizeof(trs));
1663 if ((path = calloc(1, MAXPATHLEN)) == NULL)
1664 ERRX("pfctl_rules: calloc");
1665 if (strlcpy(trs.pfrt_anchor, anchorname,
1666 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
1667 ERRX("pfctl_rules: strlcpy");
1668 pf.dev = dev;
1669 pf.opts = opts;
1670 pf.optimize = optimize;
1671 pf.loadopt = loadopt;
1672
1673 /* non-brace anchor, create without resolving the path */
1674 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
1675 ERRX("pfctl_rules: calloc");
1676 rs = &pf.anchor->ruleset;
1677 pf_init_ruleset(rs);
1678 rs->anchor = pf.anchor;
1679 if (strlcpy(pf.anchor->path, anchorname,
1680 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
1681 errx(1, "pfctl_add_rule: strlcpy");
1682 if (strlcpy(pf.anchor->name, anchorname,
1683 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
1684 errx(1, "pfctl_add_rule: strlcpy");
1685
1686
1687 pf.astack[0] = pf.anchor;
1688 pf.asd = 0;
1689 if (anchorname[0])
1690 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
1691 pf.paltq = &pa;
1692 pf.trans = t;
1693 pfctl_init_options(&pf);
1694
1695 if ((opts & PF_OPT_NOACTION) == 0) {
1696 /*
1697 * XXX For the time being we need to open transactions for
1698 * the main ruleset before parsing, because tables are still
1699 * loaded at parse time.
1700 */
1701 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor))
1702 ERRX("pfctl_rules");
1703 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
1704 pa.ticket =
1705 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
1706 if (pf.loadopt & PFCTL_FLAG_TABLE)
1707 pf.astack[0]->ruleset.tticket =
1708 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
1709 }
1710
1711 if (parse_config(filename, &pf) < 0) {
1712 if ((opts & PF_OPT_NOACTION) == 0)
1713 ERRX("Syntax error in config file: "
1714 "pf rules not loaded");
1715 else
1716 goto _error;
1717 }
1718 if (loadopt & PFCTL_FLAG_OPTION)
1719 pfctl_adjust_skip_ifaces(&pf);
1720
1721 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
1722 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
1723 (pf.loadopt & PFCTL_FLAG_NAT &&
1724 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
1725 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
1726 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
1727 (pf.loadopt & PFCTL_FLAG_FILTER &&
1728 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
1729 if ((opts & PF_OPT_NOACTION) == 0)
1730 ERRX("Unable to load rules into kernel");
1731 else
1732 goto _error;
1733 }
1734
1735 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
1736 if (check_commit_altq(dev, opts) != 0)
1737 ERRX("errors in altq config");
1738
1739 /* process "load anchor" directives */
1740 if (!anchorname[0])
1741 if (pfctl_load_anchors(dev, &pf, t) == -1)
1742 ERRX("load anchors");
1743
1744 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
1745 if (!anchorname[0])
1746 if (pfctl_load_options(&pf))
1747 goto _error;
1748 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
1749 ERR("DIOCXCOMMIT");
1750 }
1751 free(path);
1752 return (0);
1753
1754 _error:
1755 if (trans == NULL) { /* main ruleset */
1756 if ((opts & PF_OPT_NOACTION) == 0)
1757 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
1758 err(1, "DIOCXROLLBACK");
1759 exit(1);
1760 } else { /* sub ruleset */
1761 free(path);
1762 return (-1);
1763 }
1764
1765 #undef ERR
1766 #undef ERRX
1767 }
1768
1769 FILE *
pfctl_fopen(const char * name,const char * mode)1770 pfctl_fopen(const char *name, const char *mode)
1771 {
1772 struct stat st;
1773 FILE *fp;
1774
1775 fp = fopen(name, mode);
1776 if (fp == NULL)
1777 return (NULL);
1778 if (fstat(fileno(fp), &st)) {
1779 fclose(fp);
1780 return (NULL);
1781 }
1782 if (S_ISDIR(st.st_mode)) {
1783 fclose(fp);
1784 errno = EISDIR;
1785 return (NULL);
1786 }
1787 return (fp);
1788 }
1789
1790 void
pfctl_init_options(struct pfctl * pf)1791 pfctl_init_options(struct pfctl *pf)
1792 {
1793
1794 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1795 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
1796 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1797 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1798 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
1799 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1800 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
1801 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
1802 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
1803 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
1804 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
1805 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
1806 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
1807 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
1808 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
1809 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
1810 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
1811 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
1812 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
1813 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
1814
1815 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
1816 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
1817 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
1818 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
1819
1820 pf->debug = PF_DEBUG_URGENT;
1821
1822 pf->syncookies = false;
1823 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
1824 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
1825 }
1826
1827 int
pfctl_load_options(struct pfctl * pf)1828 pfctl_load_options(struct pfctl *pf)
1829 {
1830 int i, error = 0;
1831
1832 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1833 return (0);
1834
1835 /* load limits */
1836 for (i = 0; i < PF_LIMIT_MAX; i++) {
1837 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
1838 continue;
1839 if (pfctl_load_limit(pf, i, pf->limit[i]))
1840 error = 1;
1841 }
1842
1843 /*
1844 * If we've set the limit, but haven't explicitly set adaptive
1845 * timeouts, do it now with a start of 60% and end of 120%.
1846 */
1847 if (pf->limit_set[PF_LIMIT_STATES] &&
1848 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
1849 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
1850 pf->timeout[PFTM_ADAPTIVE_START] =
1851 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
1852 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
1853 pf->timeout[PFTM_ADAPTIVE_END] =
1854 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
1855 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
1856 }
1857
1858 /* load timeouts */
1859 for (i = 0; i < PFTM_MAX; i++) {
1860 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
1861 continue;
1862 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
1863 error = 1;
1864 }
1865
1866 /* load debug */
1867 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
1868 if (pfctl_load_debug(pf, pf->debug))
1869 error = 1;
1870
1871 /* load logif */
1872 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
1873 if (pfctl_load_logif(pf, pf->ifname))
1874 error = 1;
1875
1876 /* load hostid */
1877 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
1878 if (pfctl_load_hostid(pf, pf->hostid))
1879 error = 1;
1880
1881 /* load keepcounters */
1882 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
1883 error = 1;
1884
1885 /* load syncookies settings */
1886 if (pfctl_load_syncookies(pf, pf->syncookies))
1887 error = 1;
1888
1889 return (error);
1890 }
1891
1892 int
pfctl_set_limit(struct pfctl * pf,const char * opt,unsigned int limit)1893 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
1894 {
1895 int i;
1896
1897
1898 for (i = 0; pf_limits[i].name; i++) {
1899 if (strcasecmp(opt, pf_limits[i].name) == 0) {
1900 pf->limit[pf_limits[i].index] = limit;
1901 pf->limit_set[pf_limits[i].index] = 1;
1902 break;
1903 }
1904 }
1905 if (pf_limits[i].name == NULL) {
1906 warnx("Bad pool name.");
1907 return (1);
1908 }
1909
1910 if (pf->opts & PF_OPT_VERBOSE)
1911 printf("set limit %s %d\n", opt, limit);
1912
1913 return (0);
1914 }
1915
1916 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)1917 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
1918 {
1919 struct pfioc_limit pl;
1920
1921 memset(&pl, 0, sizeof(pl));
1922 pl.index = index;
1923 pl.limit = limit;
1924 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
1925 if (errno == EBUSY)
1926 warnx("Current pool size exceeds requested hard limit");
1927 else
1928 warnx("DIOCSETLIMIT");
1929 return (1);
1930 }
1931 return (0);
1932 }
1933
1934 int
pfctl_set_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)1935 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
1936 {
1937 int i;
1938
1939 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1940 return (0);
1941
1942 for (i = 0; pf_timeouts[i].name; i++) {
1943 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
1944 pf->timeout[pf_timeouts[i].timeout] = seconds;
1945 pf->timeout_set[pf_timeouts[i].timeout] = 1;
1946 break;
1947 }
1948 }
1949
1950 if (pf_timeouts[i].name == NULL) {
1951 warnx("Bad timeout name.");
1952 return (1);
1953 }
1954
1955
1956 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
1957 printf("set timeout %s %d\n", opt, seconds);
1958
1959 return (0);
1960 }
1961
1962 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)1963 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
1964 {
1965 struct pfioc_tm pt;
1966
1967 memset(&pt, 0, sizeof(pt));
1968 pt.timeout = timeout;
1969 pt.seconds = seconds;
1970 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
1971 warnx("DIOCSETTIMEOUT");
1972 return (1);
1973 }
1974 return (0);
1975 }
1976
1977 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)1978 pfctl_set_optimization(struct pfctl *pf, const char *opt)
1979 {
1980 const struct pf_hint *hint;
1981 int i, r;
1982
1983 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1984 return (0);
1985
1986 for (i = 0; pf_hints[i].name; i++)
1987 if (strcasecmp(opt, pf_hints[i].name) == 0)
1988 break;
1989
1990 hint = pf_hints[i].hint;
1991 if (hint == NULL) {
1992 warnx("invalid state timeouts optimization");
1993 return (1);
1994 }
1995
1996 for (i = 0; hint[i].name; i++)
1997 if ((r = pfctl_set_timeout(pf, hint[i].name,
1998 hint[i].timeout, 1)))
1999 return (r);
2000
2001 if (pf->opts & PF_OPT_VERBOSE)
2002 printf("set optimization %s\n", opt);
2003
2004 return (0);
2005 }
2006
2007 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2008 pfctl_set_logif(struct pfctl *pf, char *ifname)
2009 {
2010
2011 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2012 return (0);
2013
2014 if (!strcmp(ifname, "none")) {
2015 free(pf->ifname);
2016 pf->ifname = NULL;
2017 } else {
2018 pf->ifname = strdup(ifname);
2019 if (!pf->ifname)
2020 errx(1, "pfctl_set_logif: strdup");
2021 }
2022 pf->ifname_set = 1;
2023
2024 if (pf->opts & PF_OPT_VERBOSE)
2025 printf("set loginterface %s\n", ifname);
2026
2027 return (0);
2028 }
2029
2030 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2031 pfctl_load_logif(struct pfctl *pf, char *ifname)
2032 {
2033 struct pfioc_if pi;
2034
2035 memset(&pi, 0, sizeof(pi));
2036 if (ifname && strlcpy(pi.ifname, ifname,
2037 sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
2038 warnx("pfctl_load_logif: strlcpy");
2039 return (1);
2040 }
2041 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
2042 warnx("DIOCSETSTATUSIF");
2043 return (1);
2044 }
2045 return (0);
2046 }
2047
2048 int
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2049 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2050 {
2051 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2052 return (0);
2053
2054 HTONL(hostid);
2055
2056 pf->hostid = hostid;
2057 pf->hostid_set = 1;
2058
2059 if (pf->opts & PF_OPT_VERBOSE)
2060 printf("set hostid 0x%08x\n", ntohl(hostid));
2061
2062 return (0);
2063 }
2064
2065 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2066 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2067 {
2068 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2069 warnx("DIOCSETHOSTID");
2070 return (1);
2071 }
2072 return (0);
2073 }
2074
2075 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2076 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2077 {
2078 struct pfctl_syncookies cookies;
2079
2080 bzero(&cookies, sizeof(cookies));
2081
2082 cookies.mode = val;
2083 cookies.lowwater = pf->syncookieswat[0];
2084 cookies.highwater = pf->syncookieswat[1];
2085
2086 if (pfctl_set_syncookies(dev, &cookies)) {
2087 warnx("DIOCSETSYNCOOKIES");
2088 return (1);
2089 }
2090 return (0);
2091 }
2092
2093 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2094 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2095 {
2096 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2097 warnx("syncookies start/end only apply to adaptive");
2098 return (1);
2099 }
2100 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2101 if (!w->hi)
2102 w->hi = PF_SYNCOOKIES_HIWATPCT;
2103 if (!w->lo)
2104 w->lo = w->hi / 2;
2105 if (w->lo >= w->hi) {
2106 warnx("start must be higher than end");
2107 return (1);
2108 }
2109 pf->syncookieswat[0] = w->lo;
2110 pf->syncookieswat[1] = w->hi;
2111 pf->syncookieswat_set = 1;
2112 }
2113
2114 if (pf->opts & PF_OPT_VERBOSE) {
2115 if (val == PF_SYNCOOKIES_NEVER)
2116 printf("set syncookies never\n");
2117 else if (val == PF_SYNCOOKIES_ALWAYS)
2118 printf("set syncookies always\n");
2119 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2120 if (pf->syncookieswat_set)
2121 printf("set syncookies adaptive (start %u%%, "
2122 "end %u%%)\n", pf->syncookieswat[1],
2123 pf->syncookieswat[0]);
2124 else
2125 printf("set syncookies adaptive\n");
2126 } else { /* cannot happen */
2127 warnx("king bula ate all syncookies");
2128 return (1);
2129 }
2130 }
2131
2132 pf->syncookies = val;
2133 return (0);
2134 }
2135
2136 int
pfctl_set_debug(struct pfctl * pf,char * d)2137 pfctl_set_debug(struct pfctl *pf, char *d)
2138 {
2139 u_int32_t level;
2140
2141 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2142 return (0);
2143
2144 if (!strcmp(d, "none"))
2145 pf->debug = PF_DEBUG_NONE;
2146 else if (!strcmp(d, "urgent"))
2147 pf->debug = PF_DEBUG_URGENT;
2148 else if (!strcmp(d, "misc"))
2149 pf->debug = PF_DEBUG_MISC;
2150 else if (!strcmp(d, "loud"))
2151 pf->debug = PF_DEBUG_NOISY;
2152 else {
2153 warnx("unknown debug level \"%s\"", d);
2154 return (-1);
2155 }
2156
2157 pf->debug_set = 1;
2158 level = pf->debug;
2159
2160 if ((pf->opts & PF_OPT_NOACTION) == 0)
2161 if (ioctl(dev, DIOCSETDEBUG, &level))
2162 err(1, "DIOCSETDEBUG");
2163
2164 if (pf->opts & PF_OPT_VERBOSE)
2165 printf("set debug %s\n", d);
2166
2167 return (0);
2168 }
2169
2170 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2171 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2172 {
2173 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
2174 warnx("DIOCSETDEBUG");
2175 return (1);
2176 }
2177 return (0);
2178 }
2179
2180 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2181 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2182 {
2183 struct pfioc_iface pi;
2184 struct node_host *h = NULL, *n = NULL;
2185
2186 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2187 return (0);
2188
2189 bzero(&pi, sizeof(pi));
2190
2191 pi.pfiio_flags = flags;
2192
2193 /* Make sure our cache matches the kernel. If we set or clear the flag
2194 * for a group this applies to all members. */
2195 h = ifa_grouplookup(ifname, 0);
2196 for (n = h; n != NULL; n = n->next)
2197 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2198
2199 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2200 sizeof(pi.pfiio_name))
2201 errx(1, "pfctl_set_interface_flags: strlcpy");
2202
2203 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2204 if (how == 0) {
2205 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2206 err(1, "DIOCCLRIFFLAG");
2207 } else {
2208 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2209 err(1, "DIOCSETIFFLAG");
2210 pfctl_check_skip_ifaces(ifname);
2211 }
2212 }
2213 return (0);
2214 }
2215
2216 void
pfctl_debug(int dev,u_int32_t level,int opts)2217 pfctl_debug(int dev, u_int32_t level, int opts)
2218 {
2219 if (ioctl(dev, DIOCSETDEBUG, &level))
2220 err(1, "DIOCSETDEBUG");
2221 if ((opts & PF_OPT_QUIET) == 0) {
2222 fprintf(stderr, "debug level set to '");
2223 switch (level) {
2224 case PF_DEBUG_NONE:
2225 fprintf(stderr, "none");
2226 break;
2227 case PF_DEBUG_URGENT:
2228 fprintf(stderr, "urgent");
2229 break;
2230 case PF_DEBUG_MISC:
2231 fprintf(stderr, "misc");
2232 break;
2233 case PF_DEBUG_NOISY:
2234 fprintf(stderr, "loud");
2235 break;
2236 default:
2237 fprintf(stderr, "<invalid>");
2238 break;
2239 }
2240 fprintf(stderr, "'\n");
2241 }
2242 }
2243
2244 int
pfctl_test_altqsupport(int dev,int opts)2245 pfctl_test_altqsupport(int dev, int opts)
2246 {
2247 struct pfioc_altq pa;
2248
2249 pa.version = PFIOC_ALTQ_VERSION;
2250 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2251 if (errno == ENODEV) {
2252 if (opts & PF_OPT_VERBOSE)
2253 fprintf(stderr, "No ALTQ support in kernel\n"
2254 "ALTQ related functions disabled\n");
2255 return (0);
2256 } else
2257 err(1, "DIOCGETALTQS");
2258 }
2259 return (1);
2260 }
2261
2262 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2263 pfctl_show_anchors(int dev, int opts, char *anchorname)
2264 {
2265 struct pfioc_ruleset pr;
2266 u_int32_t mnr, nr;
2267
2268 memset(&pr, 0, sizeof(pr));
2269 memcpy(pr.path, anchorname, sizeof(pr.path));
2270 if (ioctl(dev, DIOCGETRULESETS, &pr)) {
2271 if (errno == EINVAL)
2272 fprintf(stderr, "Anchor '%s' not found.\n",
2273 anchorname);
2274 else
2275 err(1, "DIOCGETRULESETS");
2276 return (-1);
2277 }
2278 mnr = pr.nr;
2279 for (nr = 0; nr < mnr; ++nr) {
2280 char sub[MAXPATHLEN];
2281
2282 pr.nr = nr;
2283 if (ioctl(dev, DIOCGETRULESET, &pr))
2284 err(1, "DIOCGETRULESET");
2285 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2286 continue;
2287 sub[0] = 0;
2288 if (pr.path[0]) {
2289 strlcat(sub, pr.path, sizeof(sub));
2290 strlcat(sub, "/", sizeof(sub));
2291 }
2292 strlcat(sub, pr.name, sizeof(sub));
2293 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2294 printf(" %s\n", sub);
2295 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2296 return (-1);
2297 }
2298 return (0);
2299 }
2300
2301 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2302 pfctl_lookup_option(char *cmd, const char * const *list)
2303 {
2304 if (cmd != NULL && *cmd)
2305 for (; *list; list++)
2306 if (!strncmp(cmd, *list, strlen(cmd)))
2307 return (*list);
2308 return (NULL);
2309 }
2310
2311 int
main(int argc,char * argv[])2312 main(int argc, char *argv[])
2313 {
2314 int error = 0;
2315 int ch;
2316 int mode = O_RDONLY;
2317 int opts = 0;
2318 int optimize = PF_OPTIMIZE_BASIC;
2319 char anchorname[MAXPATHLEN];
2320 char *path;
2321
2322 if (argc < 2)
2323 usage();
2324
2325 while ((ch = getopt(argc, argv,
2326 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2327 switch (ch) {
2328 case 'a':
2329 anchoropt = optarg;
2330 break;
2331 case 'd':
2332 opts |= PF_OPT_DISABLE;
2333 mode = O_RDWR;
2334 break;
2335 case 'D':
2336 if (pfctl_cmdline_symset(optarg) < 0)
2337 warnx("could not parse macro definition %s",
2338 optarg);
2339 break;
2340 case 'e':
2341 opts |= PF_OPT_ENABLE;
2342 mode = O_RDWR;
2343 break;
2344 case 'q':
2345 opts |= PF_OPT_QUIET;
2346 break;
2347 case 'F':
2348 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2349 if (clearopt == NULL) {
2350 warnx("Unknown flush modifier '%s'", optarg);
2351 usage();
2352 }
2353 mode = O_RDWR;
2354 break;
2355 case 'i':
2356 ifaceopt = optarg;
2357 break;
2358 case 'k':
2359 if (state_killers >= 2) {
2360 warnx("can only specify -k twice");
2361 usage();
2362 /* NOTREACHED */
2363 }
2364 state_kill[state_killers++] = optarg;
2365 mode = O_RDWR;
2366 break;
2367 case 'K':
2368 if (src_node_killers >= 2) {
2369 warnx("can only specify -K twice");
2370 usage();
2371 /* NOTREACHED */
2372 }
2373 src_node_kill[src_node_killers++] = optarg;
2374 mode = O_RDWR;
2375 break;
2376 case 'm':
2377 opts |= PF_OPT_MERGE;
2378 break;
2379 case 'M':
2380 opts |= PF_OPT_KILLMATCH;
2381 break;
2382 case 'n':
2383 opts |= PF_OPT_NOACTION;
2384 break;
2385 case 'N':
2386 loadopt |= PFCTL_FLAG_NAT;
2387 break;
2388 case 'r':
2389 opts |= PF_OPT_USEDNS;
2390 break;
2391 case 'f':
2392 rulesopt = optarg;
2393 mode = O_RDWR;
2394 break;
2395 case 'g':
2396 opts |= PF_OPT_DEBUG;
2397 break;
2398 case 'A':
2399 loadopt |= PFCTL_FLAG_ALTQ;
2400 break;
2401 case 'R':
2402 loadopt |= PFCTL_FLAG_FILTER;
2403 break;
2404 case 'o':
2405 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2406 if (optiopt == NULL) {
2407 warnx("Unknown optimization '%s'", optarg);
2408 usage();
2409 }
2410 opts |= PF_OPT_OPTIMIZE;
2411 break;
2412 case 'O':
2413 loadopt |= PFCTL_FLAG_OPTION;
2414 break;
2415 case 'p':
2416 pf_device = optarg;
2417 break;
2418 case 'P':
2419 opts |= PF_OPT_NUMERIC;
2420 break;
2421 case 's':
2422 showopt = pfctl_lookup_option(optarg, showopt_list);
2423 if (showopt == NULL) {
2424 warnx("Unknown show modifier '%s'", optarg);
2425 usage();
2426 }
2427 break;
2428 case 't':
2429 tableopt = optarg;
2430 break;
2431 case 'T':
2432 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2433 if (tblcmdopt == NULL) {
2434 warnx("Unknown table command '%s'", optarg);
2435 usage();
2436 }
2437 break;
2438 case 'v':
2439 if (opts & PF_OPT_VERBOSE)
2440 opts |= PF_OPT_VERBOSE2;
2441 opts |= PF_OPT_VERBOSE;
2442 break;
2443 case 'x':
2444 debugopt = pfctl_lookup_option(optarg, debugopt_list);
2445 if (debugopt == NULL) {
2446 warnx("Unknown debug level '%s'", optarg);
2447 usage();
2448 }
2449 mode = O_RDWR;
2450 break;
2451 case 'z':
2452 opts |= PF_OPT_CLRRULECTRS;
2453 mode = O_RDWR;
2454 break;
2455 case 'h':
2456 /* FALLTHROUGH */
2457 default:
2458 usage();
2459 /* NOTREACHED */
2460 }
2461 }
2462
2463 if (tblcmdopt != NULL) {
2464 argc -= optind;
2465 argv += optind;
2466 ch = *tblcmdopt;
2467 if (ch == 'l') {
2468 loadopt |= PFCTL_FLAG_TABLE;
2469 tblcmdopt = NULL;
2470 } else
2471 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
2472 } else if (argc != optind) {
2473 warnx("unknown command line argument: %s ...", argv[optind]);
2474 usage();
2475 /* NOTREACHED */
2476 }
2477 if (loadopt == 0)
2478 loadopt = ~0;
2479
2480 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2481 errx(1, "pfctl: calloc");
2482 memset(anchorname, 0, sizeof(anchorname));
2483 if (anchoropt != NULL) {
2484 int len = strlen(anchoropt);
2485
2486 if (anchoropt[len - 1] == '*') {
2487 if (len >= 2 && anchoropt[len - 2] == '/')
2488 anchoropt[len - 2] = '\0';
2489 else
2490 anchoropt[len - 1] = '\0';
2491 opts |= PF_OPT_RECURSE;
2492 }
2493 if (strlcpy(anchorname, anchoropt,
2494 sizeof(anchorname)) >= sizeof(anchorname))
2495 errx(1, "anchor name '%s' too long",
2496 anchoropt);
2497 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE;
2498 }
2499
2500 if ((opts & PF_OPT_NOACTION) == 0) {
2501 dev = open(pf_device, mode);
2502 if (dev == -1)
2503 err(1, "%s", pf_device);
2504 altqsupport = pfctl_test_altqsupport(dev, opts);
2505 } else {
2506 dev = open(pf_device, O_RDONLY);
2507 if (dev >= 0)
2508 opts |= PF_OPT_DUMMYACTION;
2509 /* turn off options */
2510 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
2511 clearopt = showopt = debugopt = NULL;
2512 #if !defined(ENABLE_ALTQ)
2513 altqsupport = 0;
2514 #else
2515 altqsupport = 1;
2516 #endif
2517 }
2518
2519 if (opts & PF_OPT_DISABLE)
2520 if (pfctl_disable(dev, opts))
2521 error = 1;
2522
2523 if (showopt != NULL) {
2524 switch (*showopt) {
2525 case 'A':
2526 pfctl_show_anchors(dev, opts, anchorname);
2527 break;
2528 case 'r':
2529 pfctl_load_fingerprints(dev, opts);
2530 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
2531 anchorname, 0);
2532 break;
2533 case 'l':
2534 pfctl_load_fingerprints(dev, opts);
2535 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
2536 anchorname, 0);
2537 break;
2538 case 'n':
2539 pfctl_load_fingerprints(dev, opts);
2540 pfctl_show_nat(dev, opts, anchorname);
2541 break;
2542 case 'q':
2543 pfctl_show_altq(dev, ifaceopt, opts,
2544 opts & PF_OPT_VERBOSE2);
2545 break;
2546 case 's':
2547 pfctl_show_states(dev, ifaceopt, opts);
2548 break;
2549 case 'S':
2550 pfctl_show_src_nodes(dev, opts);
2551 break;
2552 case 'i':
2553 pfctl_show_status(dev, opts);
2554 break;
2555 case 'R':
2556 error = pfctl_show_running(dev);
2557 break;
2558 case 't':
2559 pfctl_show_timeouts(dev, opts);
2560 break;
2561 case 'm':
2562 pfctl_show_limits(dev, opts);
2563 break;
2564 case 'a':
2565 opts |= PF_OPT_SHOWALL;
2566 pfctl_load_fingerprints(dev, opts);
2567
2568 pfctl_show_nat(dev, opts, anchorname);
2569 pfctl_show_rules(dev, path, opts, 0, anchorname, 0);
2570 pfctl_show_altq(dev, ifaceopt, opts, 0);
2571 pfctl_show_states(dev, ifaceopt, opts);
2572 pfctl_show_src_nodes(dev, opts);
2573 pfctl_show_status(dev, opts);
2574 pfctl_show_rules(dev, path, opts, 1, anchorname, 0);
2575 pfctl_show_timeouts(dev, opts);
2576 pfctl_show_limits(dev, opts);
2577 pfctl_show_tables(anchorname, opts);
2578 pfctl_show_fingerprints(opts);
2579 break;
2580 case 'T':
2581 pfctl_show_tables(anchorname, opts);
2582 break;
2583 case 'o':
2584 pfctl_load_fingerprints(dev, opts);
2585 pfctl_show_fingerprints(opts);
2586 break;
2587 case 'I':
2588 pfctl_show_ifaces(ifaceopt, opts);
2589 break;
2590 }
2591 }
2592
2593 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL)
2594 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
2595 anchorname, 0);
2596
2597 if (clearopt != NULL) {
2598 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2599 errx(1, "anchor names beginning with '_' cannot "
2600 "be modified from the command line");
2601
2602 switch (*clearopt) {
2603 case 'r':
2604 pfctl_clear_rules(dev, opts, anchorname);
2605 break;
2606 case 'n':
2607 pfctl_clear_nat(dev, opts, anchorname);
2608 break;
2609 case 'q':
2610 pfctl_clear_altq(dev, opts);
2611 break;
2612 case 's':
2613 pfctl_clear_iface_states(dev, ifaceopt, opts);
2614 break;
2615 case 'S':
2616 pfctl_clear_src_nodes(dev, opts);
2617 break;
2618 case 'i':
2619 pfctl_clear_stats(dev, opts);
2620 break;
2621 case 'a':
2622 pfctl_clear_rules(dev, opts, anchorname);
2623 pfctl_clear_nat(dev, opts, anchorname);
2624 pfctl_clear_tables(anchorname, opts);
2625 if (!*anchorname) {
2626 pfctl_clear_altq(dev, opts);
2627 pfctl_clear_iface_states(dev, ifaceopt, opts);
2628 pfctl_clear_src_nodes(dev, opts);
2629 pfctl_clear_stats(dev, opts);
2630 pfctl_clear_fingerprints(dev, opts);
2631 pfctl_clear_interface_flags(dev, opts);
2632 }
2633 break;
2634 case 'o':
2635 pfctl_clear_fingerprints(dev, opts);
2636 break;
2637 case 'T':
2638 pfctl_clear_tables(anchorname, opts);
2639 break;
2640 }
2641 }
2642 if (state_killers) {
2643 if (!strcmp(state_kill[0], "label"))
2644 pfctl_label_kill_states(dev, ifaceopt, opts);
2645 else if (!strcmp(state_kill[0], "id"))
2646 pfctl_id_kill_states(dev, ifaceopt, opts);
2647 else if (!strcmp(state_kill[0], "gateway"))
2648 pfctl_gateway_kill_states(dev, ifaceopt, opts);
2649 else
2650 pfctl_net_kill_states(dev, ifaceopt, opts);
2651 }
2652
2653 if (src_node_killers)
2654 pfctl_kill_src_nodes(dev, ifaceopt, opts);
2655
2656 if (tblcmdopt != NULL) {
2657 error = pfctl_command_tables(argc, argv, tableopt,
2658 tblcmdopt, rulesopt, anchorname, opts);
2659 rulesopt = NULL;
2660 }
2661 if (optiopt != NULL) {
2662 switch (*optiopt) {
2663 case 'n':
2664 optimize = 0;
2665 break;
2666 case 'b':
2667 optimize |= PF_OPTIMIZE_BASIC;
2668 break;
2669 case 'o':
2670 case 'p':
2671 optimize |= PF_OPTIMIZE_PROFILE;
2672 break;
2673 }
2674 }
2675
2676 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
2677 !anchorname[0] && !(opts & PF_OPT_NOACTION))
2678 if (pfctl_get_skip_ifaces())
2679 error = 1;
2680
2681 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
2682 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
2683 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
2684 error = 1;
2685
2686 if (rulesopt != NULL) {
2687 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2688 errx(1, "anchor names beginning with '_' cannot "
2689 "be modified from the command line");
2690 if (pfctl_rules(dev, rulesopt, opts, optimize,
2691 anchorname, NULL))
2692 error = 1;
2693 else if (!(opts & PF_OPT_NOACTION) &&
2694 (loadopt & PFCTL_FLAG_TABLE))
2695 warn_namespace_collision(NULL);
2696 }
2697
2698 if (opts & PF_OPT_ENABLE)
2699 if (pfctl_enable(dev, opts))
2700 error = 1;
2701
2702 if (debugopt != NULL) {
2703 switch (*debugopt) {
2704 case 'n':
2705 pfctl_debug(dev, PF_DEBUG_NONE, opts);
2706 break;
2707 case 'u':
2708 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
2709 break;
2710 case 'm':
2711 pfctl_debug(dev, PF_DEBUG_MISC, opts);
2712 break;
2713 case 'l':
2714 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
2715 break;
2716 }
2717 }
2718
2719 exit(error);
2720 }
2721