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: stable/12/sbin/pfctl/pfctl.c 372882 2023-01-31 09:47:25Z kp $");
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_flush_rules(int, int, char *);
79 int pfctl_flush_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, int);
101 int pfctl_show_nat(int, char *, int, char *, int);
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_flush_rules(int dev,int opts,char * anchorname)452 pfctl_flush_rules(int dev, int opts, char *anchorname)
453 {
454 int ret;
455
456 ret = pfctl_clear_rules(dev, anchorname);
457 if (ret != 0)
458 err(1, "pfctl_clear_rules");
459 if ((opts & PF_OPT_QUIET) == 0)
460 fprintf(stderr, "rules cleared\n");
461 return (0);
462 }
463
464 int
pfctl_flush_nat(int dev,int opts,char * anchorname)465 pfctl_flush_nat(int dev, int opts, char *anchorname)
466 {
467 int ret;
468
469 ret = pfctl_clear_nat(dev, anchorname);
470 if (ret != 0)
471 err(1, "pfctl_clear_nat");
472 if ((opts & PF_OPT_QUIET) == 0)
473 fprintf(stderr, "nat cleared\n");
474 return (0);
475 }
476
477 int
pfctl_clear_altq(int dev,int opts)478 pfctl_clear_altq(int dev, int opts)
479 {
480 struct pfr_buffer t;
481
482 if (!altqsupport)
483 return (-1);
484 memset(&t, 0, sizeof(t));
485 t.pfrb_type = PFRB_TRANS;
486 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
487 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
488 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
489 err(1, "pfctl_clear_altq");
490 if ((opts & PF_OPT_QUIET) == 0)
491 fprintf(stderr, "altq cleared\n");
492 return (0);
493 }
494
495 int
pfctl_clear_src_nodes(int dev,int opts)496 pfctl_clear_src_nodes(int dev, int opts)
497 {
498 if (ioctl(dev, DIOCCLRSRCNODES))
499 err(1, "DIOCCLRSRCNODES");
500 if ((opts & PF_OPT_QUIET) == 0)
501 fprintf(stderr, "source tracking entries cleared\n");
502 return (0);
503 }
504
505 int
pfctl_clear_iface_states(int dev,const char * iface,int opts)506 pfctl_clear_iface_states(int dev, const char *iface, int opts)
507 {
508 struct pfctl_kill kill;
509 unsigned int killed;
510
511 memset(&kill, 0, sizeof(kill));
512 if (iface != NULL && strlcpy(kill.ifname, iface,
513 sizeof(kill.ifname)) >= sizeof(kill.ifname))
514 errx(1, "invalid interface: %s", iface);
515
516 if (opts & PF_OPT_KILLMATCH)
517 kill.kill_match = true;
518
519 if (pfctl_clear_states(dev, &kill, &killed))
520 err(1, "DIOCCLRSTATES");
521 if ((opts & PF_OPT_QUIET) == 0)
522 fprintf(stderr, "%d states cleared\n", killed);
523 return (0);
524 }
525
526 void
pfctl_addrprefix(char * addr,struct pf_addr * mask)527 pfctl_addrprefix(char *addr, struct pf_addr *mask)
528 {
529 char *p;
530 const char *errstr;
531 int prefix, ret_ga, q, r;
532 struct addrinfo hints, *res;
533
534 if ((p = strchr(addr, '/')) == NULL)
535 return;
536
537 *p++ = '\0';
538 prefix = strtonum(p, 0, 128, &errstr);
539 if (errstr)
540 errx(1, "prefix is %s: %s", errstr, p);
541
542 bzero(&hints, sizeof(hints));
543 /* prefix only with numeric addresses */
544 hints.ai_flags |= AI_NUMERICHOST;
545
546 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
547 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
548 /* NOTREACHED */
549 }
550
551 if (res->ai_family == AF_INET && prefix > 32)
552 errx(1, "prefix too long for AF_INET");
553 else if (res->ai_family == AF_INET6 && prefix > 128)
554 errx(1, "prefix too long for AF_INET6");
555
556 q = prefix >> 3;
557 r = prefix & 7;
558 switch (res->ai_family) {
559 case AF_INET:
560 bzero(&mask->v4, sizeof(mask->v4));
561 mask->v4.s_addr = htonl((u_int32_t)
562 (0xffffffffffULL << (32 - prefix)));
563 break;
564 case AF_INET6:
565 bzero(&mask->v6, sizeof(mask->v6));
566 if (q > 0)
567 memset((void *)&mask->v6, 0xff, q);
568 if (r > 0)
569 *((u_char *)&mask->v6 + q) =
570 (0xff00 >> r) & 0xff;
571 break;
572 }
573 freeaddrinfo(res);
574 }
575
576 int
pfctl_kill_src_nodes(int dev,const char * iface,int opts)577 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
578 {
579 struct pfioc_src_node_kill psnk;
580 struct addrinfo *res[2], *resp[2];
581 struct sockaddr last_src, last_dst;
582 int killed, sources, dests;
583 int ret_ga;
584
585 killed = sources = dests = 0;
586
587 memset(&psnk, 0, sizeof(psnk));
588 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
589 sizeof(psnk.psnk_src.addr.v.a.mask));
590 memset(&last_src, 0xff, sizeof(last_src));
591 memset(&last_dst, 0xff, sizeof(last_dst));
592
593 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
594
595 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
596 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
597 /* NOTREACHED */
598 }
599 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
600 if (resp[0]->ai_addr == NULL)
601 continue;
602 /* We get lots of duplicates. Catch the easy ones */
603 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
604 continue;
605 last_src = *(struct sockaddr *)resp[0]->ai_addr;
606
607 psnk.psnk_af = resp[0]->ai_family;
608 sources++;
609
610 if (psnk.psnk_af == AF_INET)
611 psnk.psnk_src.addr.v.a.addr.v4 =
612 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
613 else if (psnk.psnk_af == AF_INET6)
614 psnk.psnk_src.addr.v.a.addr.v6 =
615 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
616 sin6_addr;
617 else
618 errx(1, "Unknown address family %d", psnk.psnk_af);
619
620 if (src_node_killers > 1) {
621 dests = 0;
622 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
623 sizeof(psnk.psnk_dst.addr.v.a.mask));
624 memset(&last_dst, 0xff, sizeof(last_dst));
625 pfctl_addrprefix(src_node_kill[1],
626 &psnk.psnk_dst.addr.v.a.mask);
627 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
628 &res[1]))) {
629 errx(1, "getaddrinfo: %s",
630 gai_strerror(ret_ga));
631 /* NOTREACHED */
632 }
633 for (resp[1] = res[1]; resp[1];
634 resp[1] = resp[1]->ai_next) {
635 if (resp[1]->ai_addr == NULL)
636 continue;
637 if (psnk.psnk_af != resp[1]->ai_family)
638 continue;
639
640 if (memcmp(&last_dst, resp[1]->ai_addr,
641 sizeof(last_dst)) == 0)
642 continue;
643 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
644
645 dests++;
646
647 if (psnk.psnk_af == AF_INET)
648 psnk.psnk_dst.addr.v.a.addr.v4 =
649 ((struct sockaddr_in *)resp[1]->
650 ai_addr)->sin_addr;
651 else if (psnk.psnk_af == AF_INET6)
652 psnk.psnk_dst.addr.v.a.addr.v6 =
653 ((struct sockaddr_in6 *)resp[1]->
654 ai_addr)->sin6_addr;
655 else
656 errx(1, "Unknown address family %d",
657 psnk.psnk_af);
658
659 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
660 err(1, "DIOCKILLSRCNODES");
661 killed += psnk.psnk_killed;
662 }
663 freeaddrinfo(res[1]);
664 } else {
665 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
666 err(1, "DIOCKILLSRCNODES");
667 killed += psnk.psnk_killed;
668 }
669 }
670
671 freeaddrinfo(res[0]);
672
673 if ((opts & PF_OPT_QUIET) == 0)
674 fprintf(stderr, "killed %d src nodes from %d sources and %d "
675 "destinations\n", killed, sources, dests);
676 return (0);
677 }
678
679 int
pfctl_net_kill_states(int dev,const char * iface,int opts)680 pfctl_net_kill_states(int dev, const char *iface, int opts)
681 {
682 struct pfctl_kill kill;
683 struct addrinfo *res[2], *resp[2];
684 struct sockaddr last_src, last_dst;
685 unsigned int newkilled;
686 int killed, sources, dests;
687 int ret_ga;
688
689 killed = sources = dests = 0;
690
691 memset(&kill, 0, sizeof(kill));
692 memset(&kill.src.addr.v.a.mask, 0xff,
693 sizeof(kill.src.addr.v.a.mask));
694 memset(&last_src, 0xff, sizeof(last_src));
695 memset(&last_dst, 0xff, sizeof(last_dst));
696 if (iface != NULL && strlcpy(kill.ifname, iface,
697 sizeof(kill.ifname)) >= sizeof(kill.ifname))
698 errx(1, "invalid interface: %s", iface);
699
700 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
701
702 if (opts & PF_OPT_KILLMATCH)
703 kill.kill_match = true;
704
705 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
706 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
707 /* NOTREACHED */
708 }
709 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
710 if (resp[0]->ai_addr == NULL)
711 continue;
712 /* We get lots of duplicates. Catch the easy ones */
713 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
714 continue;
715 last_src = *(struct sockaddr *)resp[0]->ai_addr;
716
717 kill.af = resp[0]->ai_family;
718 sources++;
719
720 if (kill.af == AF_INET)
721 kill.src.addr.v.a.addr.v4 =
722 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
723 else if (kill.af == AF_INET6)
724 kill.src.addr.v.a.addr.v6 =
725 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
726 sin6_addr;
727 else
728 errx(1, "Unknown address family %d", kill.af);
729
730 if (state_killers > 1) {
731 dests = 0;
732 memset(&kill.dst.addr.v.a.mask, 0xff,
733 sizeof(kill.dst.addr.v.a.mask));
734 memset(&last_dst, 0xff, sizeof(last_dst));
735 pfctl_addrprefix(state_kill[1],
736 &kill.dst.addr.v.a.mask);
737 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
738 &res[1]))) {
739 errx(1, "getaddrinfo: %s",
740 gai_strerror(ret_ga));
741 /* NOTREACHED */
742 }
743 for (resp[1] = res[1]; resp[1];
744 resp[1] = resp[1]->ai_next) {
745 if (resp[1]->ai_addr == NULL)
746 continue;
747 if (kill.af != resp[1]->ai_family)
748 continue;
749
750 if (memcmp(&last_dst, resp[1]->ai_addr,
751 sizeof(last_dst)) == 0)
752 continue;
753 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
754
755 dests++;
756
757 if (kill.af == AF_INET)
758 kill.dst.addr.v.a.addr.v4 =
759 ((struct sockaddr_in *)resp[1]->
760 ai_addr)->sin_addr;
761 else if (kill.af == AF_INET6)
762 kill.dst.addr.v.a.addr.v6 =
763 ((struct sockaddr_in6 *)resp[1]->
764 ai_addr)->sin6_addr;
765 else
766 errx(1, "Unknown address family %d",
767 kill.af);
768
769 if (pfctl_kill_states(dev, &kill, &newkilled))
770 err(1, "DIOCKILLSTATES");
771 killed += newkilled;
772 }
773 freeaddrinfo(res[1]);
774 } else {
775 if (pfctl_kill_states(dev, &kill, &newkilled))
776 err(1, "DIOCKILLSTATES");
777 killed += newkilled;
778 }
779 }
780
781 freeaddrinfo(res[0]);
782
783 if ((opts & PF_OPT_QUIET) == 0)
784 fprintf(stderr, "killed %d states from %d sources and %d "
785 "destinations\n", killed, sources, dests);
786 return (0);
787 }
788
789 int
pfctl_gateway_kill_states(int dev,const char * iface,int opts)790 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
791 {
792 struct pfctl_kill kill;
793 struct addrinfo *res, *resp;
794 struct sockaddr last_src;
795 unsigned int newkilled;
796 int killed = 0;
797 int ret_ga;
798
799 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
800 warnx("no gateway specified");
801 usage();
802 }
803
804 memset(&kill, 0, sizeof(kill));
805 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
806 sizeof(kill.rt_addr.addr.v.a.mask));
807 memset(&last_src, 0xff, sizeof(last_src));
808 if (iface != NULL && strlcpy(kill.ifname, iface,
809 sizeof(kill.ifname)) >= sizeof(kill.ifname))
810 errx(1, "invalid interface: %s", iface);
811
812 if (opts & PF_OPT_KILLMATCH)
813 kill.kill_match = true;
814
815 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
816
817 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
818 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
819 /* NOTREACHED */
820 }
821 for (resp = res; resp; resp = resp->ai_next) {
822 if (resp->ai_addr == NULL)
823 continue;
824 /* We get lots of duplicates. Catch the easy ones */
825 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
826 continue;
827 last_src = *(struct sockaddr *)resp->ai_addr;
828
829 kill.af = resp->ai_family;
830
831 if (kill.af == AF_INET)
832 kill.rt_addr.addr.v.a.addr.v4 =
833 ((struct sockaddr_in *)resp->ai_addr)->sin_addr;
834 else if (kill.af == AF_INET6)
835 kill.rt_addr.addr.v.a.addr.v6 =
836 ((struct sockaddr_in6 *)resp->ai_addr)->
837 sin6_addr;
838 else
839 errx(1, "Unknown address family %d", kill.af);
840
841 if (pfctl_kill_states(dev, &kill, &newkilled))
842 err(1, "DIOCKILLSTATES");
843 killed += newkilled;
844 }
845
846 freeaddrinfo(res);
847
848 if ((opts & PF_OPT_QUIET) == 0)
849 fprintf(stderr, "killed %d states\n", killed);
850 return (0);
851 }
852
853 int
pfctl_label_kill_states(int dev,const char * iface,int opts)854 pfctl_label_kill_states(int dev, const char *iface, int opts)
855 {
856 struct pfctl_kill kill;
857 unsigned int killed;
858
859 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
860 warnx("no label specified");
861 usage();
862 }
863 memset(&kill, 0, sizeof(kill));
864 if (iface != NULL && strlcpy(kill.ifname, iface,
865 sizeof(kill.ifname)) >= sizeof(kill.ifname))
866 errx(1, "invalid interface: %s", iface);
867
868 if (opts & PF_OPT_KILLMATCH)
869 kill.kill_match = true;
870
871 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
872 sizeof(kill.label))
873 errx(1, "label too long: %s", state_kill[1]);
874
875 if (pfctl_kill_states(dev, &kill, &killed))
876 err(1, "DIOCKILLSTATES");
877
878 if ((opts & PF_OPT_QUIET) == 0)
879 fprintf(stderr, "killed %d states\n", killed);
880
881 return (0);
882 }
883
884 int
pfctl_id_kill_states(int dev,const char * iface,int opts)885 pfctl_id_kill_states(int dev, const char *iface, int opts)
886 {
887 struct pfctl_kill kill;
888 unsigned int killed;
889
890 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
891 warnx("no id specified");
892 usage();
893 }
894
895 memset(&kill, 0, sizeof(kill));
896
897 if (opts & PF_OPT_KILLMATCH)
898 kill.kill_match = true;
899
900 if ((sscanf(state_kill[1], "%jx/%x",
901 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
902 }
903 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
904 kill.cmp.creatorid = 0;
905 } else {
906 warnx("wrong id format specified");
907 usage();
908 }
909 if (kill.cmp.id == 0) {
910 warnx("cannot kill id 0");
911 usage();
912 }
913
914 if (pfctl_kill_states(dev, &kill, &killed))
915 err(1, "DIOCKILLSTATES");
916
917 if ((opts & PF_OPT_QUIET) == 0)
918 fprintf(stderr, "killed %d states\n", killed);
919
920 return (0);
921 }
922
923 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,char * anchorname)924 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
925 u_int32_t ticket, int r_action, char *anchorname)
926 {
927 struct pfioc_pooladdr pp;
928 struct pf_pooladdr *pa;
929 u_int32_t pnr, mpnr;
930
931 memset(&pp, 0, sizeof(pp));
932 memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
933 pp.r_action = r_action;
934 pp.r_num = nr;
935 pp.ticket = ticket;
936 if (ioctl(dev, DIOCGETADDRS, &pp)) {
937 warn("DIOCGETADDRS");
938 return (-1);
939 }
940 mpnr = pp.nr;
941 TAILQ_INIT(&pool->list);
942 for (pnr = 0; pnr < mpnr; ++pnr) {
943 pp.nr = pnr;
944 if (ioctl(dev, DIOCGETADDR, &pp)) {
945 warn("DIOCGETADDR");
946 return (-1);
947 }
948 pa = calloc(1, sizeof(struct pf_pooladdr));
949 if (pa == NULL)
950 err(1, "calloc");
951 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
952 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
953 }
954
955 return (0);
956 }
957
958 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)959 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
960 {
961 struct pf_pooladdr *pa;
962
963 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
964 TAILQ_REMOVE(&src->list, pa, entries);
965 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
966 }
967 }
968
969 void
pfctl_clear_pool(struct pfctl_pool * pool)970 pfctl_clear_pool(struct pfctl_pool *pool)
971 {
972 struct pf_pooladdr *pa;
973
974 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
975 TAILQ_REMOVE(&pool->list, pa, entries);
976 free(pa);
977 }
978 }
979
980 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)981 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
982 {
983 if (opts & PF_OPT_DEBUG) {
984 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
985 "p", "sa", "sp", "da", "dp" };
986 int i;
987
988 printf(" [ Skip steps: ");
989 for (i = 0; i < PF_SKIP_COUNT; ++i) {
990 if (rule->skip[i].nr == rule->nr + 1)
991 continue;
992 printf("%s=", t[i]);
993 if (rule->skip[i].nr == -1)
994 printf("end ");
995 else
996 printf("%u ", rule->skip[i].nr);
997 }
998 printf("]\n");
999
1000 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
1001 rule->qname, rule->qid, rule->pqname, rule->pqid);
1002 }
1003 if (opts & PF_OPT_VERBOSE) {
1004 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1005 "Bytes: %-10llu States: %-6ju]\n",
1006 (unsigned long long)rule->evaluations,
1007 (unsigned long long)(rule->packets[0] +
1008 rule->packets[1]),
1009 (unsigned long long)(rule->bytes[0] +
1010 rule->bytes[1]), (uintmax_t)rule->states_cur);
1011 if (!(opts & PF_OPT_DEBUG))
1012 printf(" [ Inserted: uid %u pid %u "
1013 "State Creations: %-6ju]\n",
1014 (unsigned)rule->cuid, (unsigned)rule->cpid,
1015 (uintmax_t)rule->states_tot);
1016 }
1017 }
1018
1019 void
pfctl_print_title(char * title)1020 pfctl_print_title(char *title)
1021 {
1022 if (!first_title)
1023 printf("\n");
1024 first_title = 0;
1025 printf("%s\n", title);
1026 }
1027
1028 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1029 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1030 char *anchorname, int depth, int wildcard)
1031 {
1032 struct pfctl_rules_info ri;
1033 struct pfctl_rule rule;
1034 char anchor_call[MAXPATHLEN];
1035 u_int32_t nr, header = 0;
1036 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1037 int numeric = opts & PF_OPT_NUMERIC;
1038 int len = strlen(path), ret = 0;
1039 char *npath, *p;
1040
1041 /*
1042 * Truncate a trailing / and * on an anchorname before searching for
1043 * the ruleset, this is syntactic sugar that doesn't actually make it
1044 * to the kernel.
1045 */
1046 if ((p = strrchr(anchorname, '/')) != NULL &&
1047 p[1] == '*' && p[2] == '\0') {
1048 p[0] = '\0';
1049 }
1050
1051 if (anchorname[0] == '/') {
1052 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1053 errx(1, "pfctl_rules: calloc");
1054 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1055 } else {
1056 if (path[0])
1057 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1058 else
1059 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1060 npath = path;
1061 }
1062
1063 /*
1064 * If this anchor was called with a wildcard path, go through
1065 * the rulesets in the anchor rather than the rules.
1066 */
1067 if (wildcard && (opts & PF_OPT_RECURSE)) {
1068 struct pfioc_ruleset prs;
1069 u_int32_t mnr, nr;
1070
1071 memset(&prs, 0, sizeof(prs));
1072 memcpy(prs.path, npath, sizeof(prs.path));
1073 if (ioctl(dev, DIOCGETRULESETS, &prs)) {
1074 if (errno == EINVAL)
1075 fprintf(stderr, "Anchor '%s' "
1076 "not found.\n", anchorname);
1077 else
1078 err(1, "DIOCGETRULESETS");
1079 }
1080 mnr = prs.nr;
1081
1082 pfctl_print_rule_counters(&rule, opts);
1083 for (nr = 0; nr < mnr; ++nr) {
1084 prs.nr = nr;
1085 if (ioctl(dev, DIOCGETRULESET, &prs))
1086 err(1, "DIOCGETRULESET");
1087 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1088 printf("anchor \"%s\" all {\n", prs.name);
1089 pfctl_show_rules(dev, npath, opts,
1090 format, prs.name, depth + 1, 0);
1091 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1092 printf("}\n");
1093 }
1094 path[len] = '\0';
1095 return (0);
1096 }
1097
1098 if (opts & PF_OPT_SHOWALL) {
1099 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1100 if (ret != 0) {
1101 warn("DIOCGETRULES");
1102 goto error;
1103 }
1104 header++;
1105 }
1106 ret = pfctl_get_rules_info(dev, &ri, PF_SCRUB, path);
1107 if (ret != 0) {
1108 warn("DIOCGETRULES");
1109 goto error;
1110 }
1111 if (opts & PF_OPT_SHOWALL) {
1112 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1113 pfctl_print_title("FILTER RULES:");
1114 else if (format == PFCTL_SHOW_LABELS && labels)
1115 pfctl_print_title("LABEL COUNTERS:");
1116 }
1117
1118 for (nr = 0; nr < ri.nr; ++nr) {
1119 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_SCRUB,
1120 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1121 warn("DIOCGETRULENV");
1122 goto error;
1123 }
1124
1125 if (pfctl_get_pool(dev, &rule.rpool,
1126 nr, ri.ticket, PF_SCRUB, path) != 0)
1127 goto error;
1128
1129 switch (format) {
1130 case PFCTL_SHOW_LABELS:
1131 break;
1132 case PFCTL_SHOW_RULES:
1133 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1134 labels = 1;
1135 print_rule(&rule, anchor_call, rule_numbers, numeric);
1136 printf("\n");
1137 pfctl_print_rule_counters(&rule, opts);
1138 break;
1139 case PFCTL_SHOW_NOTHING:
1140 break;
1141 }
1142 pfctl_clear_pool(&rule.rpool);
1143 }
1144 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1145 if (ret != 0) {
1146 warn("DIOCGETRULES");
1147 goto error;
1148 }
1149 for (nr = 0; nr < ri.nr; ++nr) {
1150 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_PASS,
1151 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1152 warn("DIOCGETRULE");
1153 goto error;
1154 }
1155
1156 if (pfctl_get_pool(dev, &rule.rpool,
1157 nr, ri.ticket, PF_PASS, path) != 0)
1158 goto error;
1159
1160 switch (format) {
1161 case PFCTL_SHOW_LABELS: {
1162 bool show = false;
1163 int i = 0;
1164
1165 while (rule.label[i][0]) {
1166 printf("%s ", rule.label[i++]);
1167 show = true;
1168 }
1169
1170 if (show) {
1171 printf("%llu %llu %llu %llu"
1172 " %llu %llu %llu %ju\n",
1173 (unsigned long long)rule.evaluations,
1174 (unsigned long long)(rule.packets[0] +
1175 rule.packets[1]),
1176 (unsigned long long)(rule.bytes[0] +
1177 rule.bytes[1]),
1178 (unsigned long long)rule.packets[0],
1179 (unsigned long long)rule.bytes[0],
1180 (unsigned long long)rule.packets[1],
1181 (unsigned long long)rule.bytes[1],
1182 (uintmax_t)rule.states_tot);
1183 }
1184 break;
1185 }
1186 case PFCTL_SHOW_RULES:
1187 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1188 labels = 1;
1189 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1190 print_rule(&rule, anchor_call, rule_numbers, numeric);
1191
1192 /*
1193 * If this is a 'unnamed' brace notation
1194 * anchor, OR the user has explicitly requested
1195 * recursion, print it recursively.
1196 */
1197 if (anchor_call[0] &&
1198 (((p = strrchr(anchor_call, '/')) ?
1199 p[1] == '_' : anchor_call[0] == '_') ||
1200 opts & PF_OPT_RECURSE)) {
1201 printf(" {\n");
1202 pfctl_print_rule_counters(&rule, opts);
1203 pfctl_show_rules(dev, npath, opts, format,
1204 anchor_call, depth + 1,
1205 rule.anchor_wildcard);
1206 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1207 printf("}\n");
1208 } else {
1209 printf("\n");
1210 pfctl_print_rule_counters(&rule, opts);
1211 }
1212 break;
1213 case PFCTL_SHOW_NOTHING:
1214 break;
1215 }
1216 pfctl_clear_pool(&rule.rpool);
1217 }
1218
1219 error:
1220 path[len] = '\0';
1221 return (ret);
1222 }
1223
1224 int
pfctl_show_nat(int dev,char * path,int opts,char * anchorname,int depth)1225 pfctl_show_nat(int dev, char *path, int opts, char *anchorname, int depth)
1226 {
1227 struct pfctl_rules_info ri;
1228 struct pfctl_rule rule;
1229 char anchor_call[MAXPATHLEN];
1230 u_int32_t nr;
1231 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1232 int i, dotitle = opts & PF_OPT_SHOWALL;
1233 int brace, ret;
1234 int len = strlen(path);
1235 char *p;
1236
1237 if (path[0])
1238 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1239 else
1240 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1241
1242 for (i = 0; i < 3; i++) {
1243 ret = pfctl_get_rules_info(dev, &ri, nattype[i], path);
1244 if (ret != 0) {
1245 warn("DIOCGETRULES");
1246 return (-1);
1247 }
1248 for (nr = 0; nr < ri.nr; ++nr) {
1249 brace = 0;
1250 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1251
1252 if (pfctl_get_rule(dev, nr, ri.ticket, path,
1253 nattype[i], &rule, anchor_call)) {
1254 warn("DIOCGETRULE");
1255 return (-1);
1256 }
1257 if (pfctl_get_pool(dev, &rule.rpool, nr,
1258 ri.ticket, nattype[i], path) != 0)
1259 return (-1);
1260
1261 if (anchor_call[0] &&
1262 ((((p = strrchr(anchor_call, '_')) != NULL) &&
1263 (p == anchor_call ||
1264 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
1265 brace++;
1266 if ((p = strrchr(anchor_call, '/')) !=
1267 NULL)
1268 p++;
1269 else
1270 p = &anchor_call[0];
1271 } else
1272 p = &anchor_call[0];
1273
1274 if (dotitle) {
1275 pfctl_print_title("TRANSLATION RULES:");
1276 dotitle = 0;
1277 }
1278 print_rule(&rule, anchor_call,
1279 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1280 if (brace)
1281 printf(" {\n");
1282 else
1283 printf("\n");
1284 pfctl_print_rule_counters(&rule, opts);
1285 pfctl_clear_pool(&rule.rpool);
1286 if (brace) {
1287 pfctl_show_nat(dev, path, opts, p, depth + 1);
1288 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1289 printf("}\n");
1290 }
1291 }
1292 }
1293 return (0);
1294 }
1295
1296 int
pfctl_show_src_nodes(int dev,int opts)1297 pfctl_show_src_nodes(int dev, int opts)
1298 {
1299 struct pfioc_src_nodes psn;
1300 struct pf_src_node *p;
1301 char *inbuf = NULL, *newinbuf = NULL;
1302 unsigned int len = 0;
1303 int i;
1304
1305 memset(&psn, 0, sizeof(psn));
1306 for (;;) {
1307 psn.psn_len = len;
1308 if (len) {
1309 newinbuf = realloc(inbuf, len);
1310 if (newinbuf == NULL)
1311 err(1, "realloc");
1312 psn.psn_buf = inbuf = newinbuf;
1313 }
1314 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
1315 warn("DIOCGETSRCNODES");
1316 free(inbuf);
1317 return (-1);
1318 }
1319 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
1320 break;
1321 if (len == 0 && psn.psn_len == 0)
1322 goto done;
1323 if (len == 0 && psn.psn_len != 0)
1324 len = psn.psn_len;
1325 if (psn.psn_len == 0)
1326 goto done; /* no src_nodes */
1327 len *= 2;
1328 }
1329 p = psn.psn_src_nodes;
1330 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
1331 pfctl_print_title("SOURCE TRACKING NODES:");
1332 for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1333 print_src_node(p, opts);
1334 p++;
1335 }
1336 done:
1337 free(inbuf);
1338 return (0);
1339 }
1340
1341 int
pfctl_show_states(int dev,const char * iface,int opts)1342 pfctl_show_states(int dev, const char *iface, int opts)
1343 {
1344 struct pfctl_states states;
1345 struct pfctl_state *s;
1346 int dotitle = (opts & PF_OPT_SHOWALL);
1347
1348 memset(&states, 0, sizeof(states));
1349
1350 if (pfctl_get_states(dev, &states))
1351 return (-1);
1352
1353 TAILQ_FOREACH(s, &states.states, entry) {
1354 if (iface != NULL && strcmp(s->ifname, iface))
1355 continue;
1356 if (dotitle) {
1357 pfctl_print_title("STATES:");
1358 dotitle = 0;
1359 }
1360 print_state(s, opts);
1361 }
1362
1363 pfctl_free_states(&states);
1364
1365 return (0);
1366 }
1367
1368 int
pfctl_show_status(int dev,int opts)1369 pfctl_show_status(int dev, int opts)
1370 {
1371 struct pfctl_status *status;
1372 struct pfctl_syncookies cookies;
1373
1374 if ((status = pfctl_get_status(dev)) == NULL) {
1375 warn("DIOCGETSTATUS");
1376 return (-1);
1377 }
1378 if (pfctl_get_syncookies(dev, &cookies)) {
1379 pfctl_free_status(status);
1380 warn("DIOCGETSYNCOOKIES");
1381 return (-1);
1382 }
1383 if (opts & PF_OPT_SHOWALL)
1384 pfctl_print_title("INFO:");
1385 print_status(status, &cookies, opts);
1386 pfctl_free_status(status);
1387 return (0);
1388 }
1389
1390 int
pfctl_show_running(int dev)1391 pfctl_show_running(int dev)
1392 {
1393 struct pfctl_status *status;
1394 int running;
1395
1396 if ((status = pfctl_get_status(dev)) == NULL) {
1397 warn("DIOCGETSTATUS");
1398 return (-1);
1399 }
1400
1401 running = status->running;
1402
1403 print_running(status);
1404 pfctl_free_status(status);
1405 return (!running);
1406 }
1407
1408 int
pfctl_show_timeouts(int dev,int opts)1409 pfctl_show_timeouts(int dev, int opts)
1410 {
1411 struct pfioc_tm pt;
1412 int i;
1413
1414 if (opts & PF_OPT_SHOWALL)
1415 pfctl_print_title("TIMEOUTS:");
1416 memset(&pt, 0, sizeof(pt));
1417 for (i = 0; pf_timeouts[i].name; i++) {
1418 pt.timeout = pf_timeouts[i].timeout;
1419 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1420 err(1, "DIOCGETTIMEOUT");
1421 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1422 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1423 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1424 printf(" states");
1425 else
1426 printf("s");
1427 printf("\n");
1428 }
1429 return (0);
1430
1431 }
1432
1433 int
pfctl_show_limits(int dev,int opts)1434 pfctl_show_limits(int dev, int opts)
1435 {
1436 struct pfioc_limit pl;
1437 int i;
1438
1439 if (opts & PF_OPT_SHOWALL)
1440 pfctl_print_title("LIMITS:");
1441 memset(&pl, 0, sizeof(pl));
1442 for (i = 0; pf_limits[i].name; i++) {
1443 pl.index = pf_limits[i].index;
1444 if (ioctl(dev, DIOCGETLIMIT, &pl))
1445 err(1, "DIOCGETLIMIT");
1446 printf("%-13s ", pf_limits[i].name);
1447 if (pl.limit == UINT_MAX)
1448 printf("unlimited\n");
1449 else
1450 printf("hard limit %8u\n", pl.limit);
1451 }
1452 return (0);
1453 }
1454
1455 /* callbacks for rule/nat/rdr/addr */
1456 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af)1457 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
1458 {
1459 struct pf_pooladdr *pa;
1460
1461 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1462 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1463 err(1, "DIOCBEGINADDRS");
1464 }
1465
1466 pf->paddr.af = af;
1467 TAILQ_FOREACH(pa, &p->list, entries) {
1468 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1469 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1470 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1471 err(1, "DIOCADDADDR");
1472 }
1473 }
1474 return (0);
1475 }
1476
1477 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1478 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1479 const char *anchor_call)
1480 {
1481 u_int8_t rs_num;
1482 struct pfctl_rule *rule;
1483 struct pfctl_ruleset *rs;
1484 char *p;
1485
1486 rs_num = pf_get_ruleset_number(r->action);
1487 if (rs_num == PF_RULESET_MAX)
1488 errx(1, "Invalid rule type %d", r->action);
1489
1490 rs = &pf->anchor->ruleset;
1491
1492 if (anchor_call[0] && r->anchor == NULL) {
1493 /*
1494 * Don't make non-brace anchors part of the main anchor pool.
1495 */
1496 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1497 err(1, "pfctl_append_rule: calloc");
1498
1499 pf_init_ruleset(&r->anchor->ruleset);
1500 r->anchor->ruleset.anchor = r->anchor;
1501 if (strlcpy(r->anchor->path, anchor_call,
1502 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1503 errx(1, "pfctl_append_rule: strlcpy");
1504 if ((p = strrchr(anchor_call, '/')) != NULL) {
1505 if (!strlen(p))
1506 err(1, "pfctl_append_rule: bad anchor name %s",
1507 anchor_call);
1508 } else
1509 p = (char *)anchor_call;
1510 if (strlcpy(r->anchor->name, p,
1511 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1512 errx(1, "pfctl_append_rule: strlcpy");
1513 }
1514
1515 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1516 err(1, "calloc");
1517 bcopy(r, rule, sizeof(*rule));
1518 TAILQ_INIT(&rule->rpool.list);
1519 pfctl_move_pool(&r->rpool, &rule->rpool);
1520
1521 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1522 return (0);
1523 }
1524
1525 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a)1526 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a)
1527 {
1528 int osize = pf->trans->pfrb_size;
1529
1530 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1531 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1532 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1533 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1534 return (1);
1535 }
1536 if (a == pf->astack[0] && ((altqsupport &&
1537 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1538 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1539 return (2);
1540 }
1541 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1542 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1543 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1544 return (3);
1545 }
1546 if (pf->loadopt & PFCTL_FLAG_TABLE)
1547 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1548 return (4);
1549 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1550 return (5);
1551
1552 return (0);
1553 }
1554
1555 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1556 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1557 int rs_num, int depth)
1558 {
1559 struct pfctl_rule *r;
1560 int error, len = strlen(path);
1561 int brace = 0;
1562
1563 pf->anchor = rs->anchor;
1564
1565 if (path[0])
1566 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1567 else
1568 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1569
1570 if (depth) {
1571 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1572 brace++;
1573 if (pf->opts & PF_OPT_VERBOSE)
1574 printf(" {\n");
1575 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1576 (error = pfctl_ruleset_trans(pf,
1577 path, rs->anchor))) {
1578 printf("pfctl_load_rulesets: "
1579 "pfctl_ruleset_trans %d\n", error);
1580 goto error;
1581 }
1582 } else if (pf->opts & PF_OPT_VERBOSE)
1583 printf("\n");
1584
1585 }
1586
1587 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1588 pfctl_optimize_ruleset(pf, rs);
1589
1590 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1591 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1592
1593 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
1594 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
1595 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
1596 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
1597
1598 if ((error = pfctl_load_rule(pf, path, r, depth)))
1599 goto error;
1600 if (r->anchor) {
1601 if ((error = pfctl_load_ruleset(pf, path,
1602 &r->anchor->ruleset, rs_num, depth + 1)))
1603 goto error;
1604 } else if (pf->opts & PF_OPT_VERBOSE)
1605 printf("\n");
1606 free(r);
1607 }
1608 if (brace && pf->opts & PF_OPT_VERBOSE) {
1609 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1610 printf("}\n");
1611 }
1612 path[len] = '\0';
1613 return (0);
1614
1615 error:
1616 path[len] = '\0';
1617 return (error);
1618
1619 }
1620
1621 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)1622 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
1623 {
1624 u_int8_t rs_num = pf_get_ruleset_number(r->action);
1625 char *name;
1626 u_int32_t ticket;
1627 char anchor[PF_ANCHOR_NAME_SIZE];
1628 int len = strlen(path);
1629
1630 /* set up anchor before adding to path for anchor_call */
1631 if ((pf->opts & PF_OPT_NOACTION) == 0)
1632 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
1633 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1634 errx(1, "pfctl_load_rule: strlcpy");
1635
1636 if (r->anchor) {
1637 if (r->anchor->match) {
1638 if (path[0])
1639 snprintf(&path[len], MAXPATHLEN - len,
1640 "/%s", r->anchor->name);
1641 else
1642 snprintf(&path[len], MAXPATHLEN - len,
1643 "%s", r->anchor->name);
1644 name = r->anchor->name;
1645 } else
1646 name = r->anchor->path;
1647 } else
1648 name = "";
1649
1650 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1651 if (pfctl_add_pool(pf, &r->rpool, r->af))
1652 return (1);
1653 if (pfctl_add_rule(pf->dev, r, anchor, name, ticket,
1654 pf->paddr.ticket))
1655 err(1, "DIOCADDRULENV");
1656 }
1657
1658 if (pf->opts & PF_OPT_VERBOSE) {
1659 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1660 print_rule(r, name,
1661 pf->opts & PF_OPT_VERBOSE2,
1662 pf->opts & PF_OPT_NUMERIC);
1663 }
1664 path[len] = '\0';
1665 pfctl_clear_pool(&r->rpool);
1666 return (0);
1667 }
1668
1669 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)1670 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
1671 {
1672 if (altqsupport &&
1673 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
1674 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
1675 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1676 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
1677 if (errno == ENXIO)
1678 errx(1, "qtype not configured");
1679 else if (errno == ENODEV)
1680 errx(1, "%s: driver does not support "
1681 "altq", a->ifname);
1682 else
1683 err(1, "DIOCADDALTQ");
1684 }
1685 }
1686 pfaltq_store(&pf->paltq->altq);
1687 }
1688 return (0);
1689 }
1690
1691 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)1692 pfctl_rules(int dev, char *filename, int opts, int optimize,
1693 char *anchorname, struct pfr_buffer *trans)
1694 {
1695 #define ERR(x) do { warn(x); goto _error; } while(0)
1696 #define ERRX(x) do { warnx(x); goto _error; } while(0)
1697
1698 struct pfr_buffer *t, buf;
1699 struct pfioc_altq pa;
1700 struct pfctl pf;
1701 struct pfctl_ruleset *rs;
1702 struct pfr_table trs;
1703 char *path;
1704 int osize;
1705
1706 RB_INIT(&pf_anchors);
1707 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
1708 pf_init_ruleset(&pf_main_anchor.ruleset);
1709 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
1710 if (trans == NULL) {
1711 bzero(&buf, sizeof(buf));
1712 buf.pfrb_type = PFRB_TRANS;
1713 t = &buf;
1714 osize = 0;
1715 } else {
1716 t = trans;
1717 osize = t->pfrb_size;
1718 }
1719
1720 memset(&pa, 0, sizeof(pa));
1721 pa.version = PFIOC_ALTQ_VERSION;
1722 memset(&pf, 0, sizeof(pf));
1723 memset(&trs, 0, sizeof(trs));
1724 if ((path = calloc(1, MAXPATHLEN)) == NULL)
1725 ERRX("pfctl_rules: calloc");
1726 if (strlcpy(trs.pfrt_anchor, anchorname,
1727 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
1728 ERRX("pfctl_rules: strlcpy");
1729 pf.dev = dev;
1730 pf.opts = opts;
1731 pf.optimize = optimize;
1732 pf.loadopt = loadopt;
1733
1734 /* non-brace anchor, create without resolving the path */
1735 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
1736 ERRX("pfctl_rules: calloc");
1737 rs = &pf.anchor->ruleset;
1738 pf_init_ruleset(rs);
1739 rs->anchor = pf.anchor;
1740 if (strlcpy(pf.anchor->path, anchorname,
1741 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
1742 errx(1, "pfctl_add_rule: strlcpy");
1743 if (strlcpy(pf.anchor->name, anchorname,
1744 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
1745 errx(1, "pfctl_add_rule: strlcpy");
1746
1747
1748 pf.astack[0] = pf.anchor;
1749 pf.asd = 0;
1750 if (anchorname[0])
1751 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
1752 pf.paltq = &pa;
1753 pf.trans = t;
1754 pfctl_init_options(&pf);
1755
1756 if ((opts & PF_OPT_NOACTION) == 0) {
1757 /*
1758 * XXX For the time being we need to open transactions for
1759 * the main ruleset before parsing, because tables are still
1760 * loaded at parse time.
1761 */
1762 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor))
1763 ERRX("pfctl_rules");
1764 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
1765 pa.ticket =
1766 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
1767 if (pf.loadopt & PFCTL_FLAG_TABLE)
1768 pf.astack[0]->ruleset.tticket =
1769 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
1770 }
1771
1772 if (parse_config(filename, &pf) < 0) {
1773 if ((opts & PF_OPT_NOACTION) == 0)
1774 ERRX("Syntax error in config file: "
1775 "pf rules not loaded");
1776 else
1777 goto _error;
1778 }
1779 if (loadopt & PFCTL_FLAG_OPTION)
1780 pfctl_adjust_skip_ifaces(&pf);
1781
1782 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
1783 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
1784 (pf.loadopt & PFCTL_FLAG_NAT &&
1785 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
1786 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
1787 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
1788 (pf.loadopt & PFCTL_FLAG_FILTER &&
1789 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
1790 if ((opts & PF_OPT_NOACTION) == 0)
1791 ERRX("Unable to load rules into kernel");
1792 else
1793 goto _error;
1794 }
1795
1796 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
1797 if (check_commit_altq(dev, opts) != 0)
1798 ERRX("errors in altq config");
1799
1800 /* process "load anchor" directives */
1801 if (!anchorname[0])
1802 if (pfctl_load_anchors(dev, &pf, t) == -1)
1803 ERRX("load anchors");
1804
1805 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
1806 if (!anchorname[0])
1807 if (pfctl_load_options(&pf))
1808 goto _error;
1809 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
1810 ERR("DIOCXCOMMIT");
1811 }
1812 free(path);
1813 return (0);
1814
1815 _error:
1816 if (trans == NULL) { /* main ruleset */
1817 if ((opts & PF_OPT_NOACTION) == 0)
1818 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
1819 err(1, "DIOCXROLLBACK");
1820 exit(1);
1821 } else { /* sub ruleset */
1822 free(path);
1823 return (-1);
1824 }
1825
1826 #undef ERR
1827 #undef ERRX
1828 }
1829
1830 FILE *
pfctl_fopen(const char * name,const char * mode)1831 pfctl_fopen(const char *name, const char *mode)
1832 {
1833 struct stat st;
1834 FILE *fp;
1835
1836 fp = fopen(name, mode);
1837 if (fp == NULL)
1838 return (NULL);
1839 if (fstat(fileno(fp), &st)) {
1840 fclose(fp);
1841 return (NULL);
1842 }
1843 if (S_ISDIR(st.st_mode)) {
1844 fclose(fp);
1845 errno = EISDIR;
1846 return (NULL);
1847 }
1848 return (fp);
1849 }
1850
1851 void
pfctl_init_options(struct pfctl * pf)1852 pfctl_init_options(struct pfctl *pf)
1853 {
1854
1855 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1856 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
1857 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1858 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1859 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
1860 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1861 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
1862 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
1863 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
1864 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
1865 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
1866 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
1867 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
1868 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
1869 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
1870 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
1871 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
1872 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
1873 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
1874 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
1875
1876 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
1877 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
1878 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
1879 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
1880
1881 pf->debug = PF_DEBUG_URGENT;
1882
1883 pf->syncookies = false;
1884 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
1885 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
1886 }
1887
1888 int
pfctl_load_options(struct pfctl * pf)1889 pfctl_load_options(struct pfctl *pf)
1890 {
1891 int i, error = 0;
1892
1893 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1894 return (0);
1895
1896 /* load limits */
1897 for (i = 0; i < PF_LIMIT_MAX; i++) {
1898 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
1899 continue;
1900 if (pfctl_load_limit(pf, i, pf->limit[i]))
1901 error = 1;
1902 }
1903
1904 /*
1905 * If we've set the limit, but haven't explicitly set adaptive
1906 * timeouts, do it now with a start of 60% and end of 120%.
1907 */
1908 if (pf->limit_set[PF_LIMIT_STATES] &&
1909 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
1910 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
1911 pf->timeout[PFTM_ADAPTIVE_START] =
1912 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
1913 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
1914 pf->timeout[PFTM_ADAPTIVE_END] =
1915 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
1916 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
1917 }
1918
1919 /* load timeouts */
1920 for (i = 0; i < PFTM_MAX; i++) {
1921 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
1922 continue;
1923 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
1924 error = 1;
1925 }
1926
1927 /* load debug */
1928 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
1929 if (pfctl_load_debug(pf, pf->debug))
1930 error = 1;
1931
1932 /* load logif */
1933 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
1934 if (pfctl_load_logif(pf, pf->ifname))
1935 error = 1;
1936
1937 /* load hostid */
1938 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
1939 if (pfctl_load_hostid(pf, pf->hostid))
1940 error = 1;
1941
1942 /* load keepcounters */
1943 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
1944 error = 1;
1945
1946 /* load syncookies settings */
1947 if (pfctl_load_syncookies(pf, pf->syncookies))
1948 error = 1;
1949
1950 return (error);
1951 }
1952
1953 int
pfctl_set_limit(struct pfctl * pf,const char * opt,unsigned int limit)1954 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
1955 {
1956 int i;
1957
1958
1959 for (i = 0; pf_limits[i].name; i++) {
1960 if (strcasecmp(opt, pf_limits[i].name) == 0) {
1961 pf->limit[pf_limits[i].index] = limit;
1962 pf->limit_set[pf_limits[i].index] = 1;
1963 break;
1964 }
1965 }
1966 if (pf_limits[i].name == NULL) {
1967 warnx("Bad pool name.");
1968 return (1);
1969 }
1970
1971 if (pf->opts & PF_OPT_VERBOSE)
1972 printf("set limit %s %d\n", opt, limit);
1973
1974 return (0);
1975 }
1976
1977 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)1978 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
1979 {
1980 struct pfioc_limit pl;
1981
1982 memset(&pl, 0, sizeof(pl));
1983 pl.index = index;
1984 pl.limit = limit;
1985 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
1986 if (errno == EBUSY)
1987 warnx("Current pool size exceeds requested hard limit");
1988 else
1989 warnx("DIOCSETLIMIT");
1990 return (1);
1991 }
1992 return (0);
1993 }
1994
1995 int
pfctl_set_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)1996 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
1997 {
1998 int i;
1999
2000 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2001 return (0);
2002
2003 for (i = 0; pf_timeouts[i].name; i++) {
2004 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2005 pf->timeout[pf_timeouts[i].timeout] = seconds;
2006 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2007 break;
2008 }
2009 }
2010
2011 if (pf_timeouts[i].name == NULL) {
2012 warnx("Bad timeout name.");
2013 return (1);
2014 }
2015
2016
2017 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2018 printf("set timeout %s %d\n", opt, seconds);
2019
2020 return (0);
2021 }
2022
2023 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2024 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2025 {
2026 struct pfioc_tm pt;
2027
2028 memset(&pt, 0, sizeof(pt));
2029 pt.timeout = timeout;
2030 pt.seconds = seconds;
2031 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
2032 warnx("DIOCSETTIMEOUT");
2033 return (1);
2034 }
2035 return (0);
2036 }
2037
2038 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2039 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2040 {
2041 const struct pf_hint *hint;
2042 int i, r;
2043
2044 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2045 return (0);
2046
2047 for (i = 0; pf_hints[i].name; i++)
2048 if (strcasecmp(opt, pf_hints[i].name) == 0)
2049 break;
2050
2051 hint = pf_hints[i].hint;
2052 if (hint == NULL) {
2053 warnx("invalid state timeouts optimization");
2054 return (1);
2055 }
2056
2057 for (i = 0; hint[i].name; i++)
2058 if ((r = pfctl_set_timeout(pf, hint[i].name,
2059 hint[i].timeout, 1)))
2060 return (r);
2061
2062 if (pf->opts & PF_OPT_VERBOSE)
2063 printf("set optimization %s\n", opt);
2064
2065 return (0);
2066 }
2067
2068 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2069 pfctl_set_logif(struct pfctl *pf, char *ifname)
2070 {
2071
2072 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2073 return (0);
2074
2075 if (!strcmp(ifname, "none")) {
2076 free(pf->ifname);
2077 pf->ifname = NULL;
2078 } else {
2079 pf->ifname = strdup(ifname);
2080 if (!pf->ifname)
2081 errx(1, "pfctl_set_logif: strdup");
2082 }
2083 pf->ifname_set = 1;
2084
2085 if (pf->opts & PF_OPT_VERBOSE)
2086 printf("set loginterface %s\n", ifname);
2087
2088 return (0);
2089 }
2090
2091 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2092 pfctl_load_logif(struct pfctl *pf, char *ifname)
2093 {
2094 struct pfioc_if pi;
2095
2096 memset(&pi, 0, sizeof(pi));
2097 if (ifname && strlcpy(pi.ifname, ifname,
2098 sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
2099 warnx("pfctl_load_logif: strlcpy");
2100 return (1);
2101 }
2102 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
2103 warnx("DIOCSETSTATUSIF");
2104 return (1);
2105 }
2106 return (0);
2107 }
2108
2109 int
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2110 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2111 {
2112 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2113 return (0);
2114
2115 HTONL(hostid);
2116
2117 pf->hostid = hostid;
2118 pf->hostid_set = 1;
2119
2120 if (pf->opts & PF_OPT_VERBOSE)
2121 printf("set hostid 0x%08x\n", ntohl(hostid));
2122
2123 return (0);
2124 }
2125
2126 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2127 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2128 {
2129 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2130 warnx("DIOCSETHOSTID");
2131 return (1);
2132 }
2133 return (0);
2134 }
2135
2136 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2137 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2138 {
2139 struct pfctl_syncookies cookies;
2140
2141 bzero(&cookies, sizeof(cookies));
2142
2143 cookies.mode = val;
2144 cookies.lowwater = pf->syncookieswat[0];
2145 cookies.highwater = pf->syncookieswat[1];
2146
2147 if (pfctl_set_syncookies(dev, &cookies)) {
2148 warnx("DIOCSETSYNCOOKIES");
2149 return (1);
2150 }
2151 return (0);
2152 }
2153
2154 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2155 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2156 {
2157 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2158 warnx("syncookies start/end only apply to adaptive");
2159 return (1);
2160 }
2161 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2162 if (!w->hi)
2163 w->hi = PF_SYNCOOKIES_HIWATPCT;
2164 if (!w->lo)
2165 w->lo = w->hi / 2;
2166 if (w->lo >= w->hi) {
2167 warnx("start must be higher than end");
2168 return (1);
2169 }
2170 pf->syncookieswat[0] = w->lo;
2171 pf->syncookieswat[1] = w->hi;
2172 pf->syncookieswat_set = 1;
2173 }
2174
2175 if (pf->opts & PF_OPT_VERBOSE) {
2176 if (val == PF_SYNCOOKIES_NEVER)
2177 printf("set syncookies never\n");
2178 else if (val == PF_SYNCOOKIES_ALWAYS)
2179 printf("set syncookies always\n");
2180 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2181 if (pf->syncookieswat_set)
2182 printf("set syncookies adaptive (start %u%%, "
2183 "end %u%%)\n", pf->syncookieswat[1],
2184 pf->syncookieswat[0]);
2185 else
2186 printf("set syncookies adaptive\n");
2187 } else { /* cannot happen */
2188 warnx("king bula ate all syncookies");
2189 return (1);
2190 }
2191 }
2192
2193 pf->syncookies = val;
2194 return (0);
2195 }
2196
2197 int
pfctl_set_debug(struct pfctl * pf,char * d)2198 pfctl_set_debug(struct pfctl *pf, char *d)
2199 {
2200 u_int32_t level;
2201
2202 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2203 return (0);
2204
2205 if (!strcmp(d, "none"))
2206 pf->debug = PF_DEBUG_NONE;
2207 else if (!strcmp(d, "urgent"))
2208 pf->debug = PF_DEBUG_URGENT;
2209 else if (!strcmp(d, "misc"))
2210 pf->debug = PF_DEBUG_MISC;
2211 else if (!strcmp(d, "loud"))
2212 pf->debug = PF_DEBUG_NOISY;
2213 else {
2214 warnx("unknown debug level \"%s\"", d);
2215 return (-1);
2216 }
2217
2218 pf->debug_set = 1;
2219 level = pf->debug;
2220
2221 if ((pf->opts & PF_OPT_NOACTION) == 0)
2222 if (ioctl(dev, DIOCSETDEBUG, &level))
2223 err(1, "DIOCSETDEBUG");
2224
2225 if (pf->opts & PF_OPT_VERBOSE)
2226 printf("set debug %s\n", d);
2227
2228 return (0);
2229 }
2230
2231 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2232 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2233 {
2234 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
2235 warnx("DIOCSETDEBUG");
2236 return (1);
2237 }
2238 return (0);
2239 }
2240
2241 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2242 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2243 {
2244 struct pfioc_iface pi;
2245 struct node_host *h = NULL, *n = NULL;
2246
2247 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2248 return (0);
2249
2250 bzero(&pi, sizeof(pi));
2251
2252 pi.pfiio_flags = flags;
2253
2254 /* Make sure our cache matches the kernel. If we set or clear the flag
2255 * for a group this applies to all members. */
2256 h = ifa_grouplookup(ifname, 0);
2257 for (n = h; n != NULL; n = n->next)
2258 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2259
2260 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2261 sizeof(pi.pfiio_name))
2262 errx(1, "pfctl_set_interface_flags: strlcpy");
2263
2264 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2265 if (how == 0) {
2266 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2267 err(1, "DIOCCLRIFFLAG");
2268 } else {
2269 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2270 err(1, "DIOCSETIFFLAG");
2271 pfctl_check_skip_ifaces(ifname);
2272 }
2273 }
2274 return (0);
2275 }
2276
2277 void
pfctl_debug(int dev,u_int32_t level,int opts)2278 pfctl_debug(int dev, u_int32_t level, int opts)
2279 {
2280 if (ioctl(dev, DIOCSETDEBUG, &level))
2281 err(1, "DIOCSETDEBUG");
2282 if ((opts & PF_OPT_QUIET) == 0) {
2283 fprintf(stderr, "debug level set to '");
2284 switch (level) {
2285 case PF_DEBUG_NONE:
2286 fprintf(stderr, "none");
2287 break;
2288 case PF_DEBUG_URGENT:
2289 fprintf(stderr, "urgent");
2290 break;
2291 case PF_DEBUG_MISC:
2292 fprintf(stderr, "misc");
2293 break;
2294 case PF_DEBUG_NOISY:
2295 fprintf(stderr, "loud");
2296 break;
2297 default:
2298 fprintf(stderr, "<invalid>");
2299 break;
2300 }
2301 fprintf(stderr, "'\n");
2302 }
2303 }
2304
2305 int
pfctl_test_altqsupport(int dev,int opts)2306 pfctl_test_altqsupport(int dev, int opts)
2307 {
2308 struct pfioc_altq pa;
2309
2310 pa.version = PFIOC_ALTQ_VERSION;
2311 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2312 if (errno == ENODEV) {
2313 if (opts & PF_OPT_VERBOSE)
2314 fprintf(stderr, "No ALTQ support in kernel\n"
2315 "ALTQ related functions disabled\n");
2316 return (0);
2317 } else
2318 err(1, "DIOCGETALTQS");
2319 }
2320 return (1);
2321 }
2322
2323 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2324 pfctl_show_anchors(int dev, int opts, char *anchorname)
2325 {
2326 struct pfioc_ruleset pr;
2327 u_int32_t mnr, nr;
2328
2329 memset(&pr, 0, sizeof(pr));
2330 memcpy(pr.path, anchorname, sizeof(pr.path));
2331 if (ioctl(dev, DIOCGETRULESETS, &pr)) {
2332 if (errno == EINVAL)
2333 fprintf(stderr, "Anchor '%s' not found.\n",
2334 anchorname);
2335 else
2336 err(1, "DIOCGETRULESETS");
2337 return (-1);
2338 }
2339 mnr = pr.nr;
2340 for (nr = 0; nr < mnr; ++nr) {
2341 char sub[MAXPATHLEN];
2342
2343 pr.nr = nr;
2344 if (ioctl(dev, DIOCGETRULESET, &pr))
2345 err(1, "DIOCGETRULESET");
2346 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2347 continue;
2348 sub[0] = 0;
2349 if (pr.path[0]) {
2350 strlcat(sub, pr.path, sizeof(sub));
2351 strlcat(sub, "/", sizeof(sub));
2352 }
2353 strlcat(sub, pr.name, sizeof(sub));
2354 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2355 printf(" %s\n", sub);
2356 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2357 return (-1);
2358 }
2359 return (0);
2360 }
2361
2362 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2363 pfctl_lookup_option(char *cmd, const char * const *list)
2364 {
2365 if (cmd != NULL && *cmd)
2366 for (; *list; list++)
2367 if (!strncmp(cmd, *list, strlen(cmd)))
2368 return (*list);
2369 return (NULL);
2370 }
2371
2372 int
main(int argc,char * argv[])2373 main(int argc, char *argv[])
2374 {
2375 int error = 0;
2376 int ch;
2377 int mode = O_RDONLY;
2378 int opts = 0;
2379 int optimize = PF_OPTIMIZE_BASIC;
2380 char anchorname[MAXPATHLEN];
2381 char *path;
2382
2383 if (argc < 2)
2384 usage();
2385
2386 while ((ch = getopt(argc, argv,
2387 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2388 switch (ch) {
2389 case 'a':
2390 anchoropt = optarg;
2391 break;
2392 case 'd':
2393 opts |= PF_OPT_DISABLE;
2394 mode = O_RDWR;
2395 break;
2396 case 'D':
2397 if (pfctl_cmdline_symset(optarg) < 0)
2398 warnx("could not parse macro definition %s",
2399 optarg);
2400 break;
2401 case 'e':
2402 opts |= PF_OPT_ENABLE;
2403 mode = O_RDWR;
2404 break;
2405 case 'q':
2406 opts |= PF_OPT_QUIET;
2407 break;
2408 case 'F':
2409 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2410 if (clearopt == NULL) {
2411 warnx("Unknown flush modifier '%s'", optarg);
2412 usage();
2413 }
2414 mode = O_RDWR;
2415 break;
2416 case 'i':
2417 ifaceopt = optarg;
2418 break;
2419 case 'k':
2420 if (state_killers >= 2) {
2421 warnx("can only specify -k twice");
2422 usage();
2423 /* NOTREACHED */
2424 }
2425 state_kill[state_killers++] = optarg;
2426 mode = O_RDWR;
2427 break;
2428 case 'K':
2429 if (src_node_killers >= 2) {
2430 warnx("can only specify -K twice");
2431 usage();
2432 /* NOTREACHED */
2433 }
2434 src_node_kill[src_node_killers++] = optarg;
2435 mode = O_RDWR;
2436 break;
2437 case 'm':
2438 opts |= PF_OPT_MERGE;
2439 break;
2440 case 'M':
2441 opts |= PF_OPT_KILLMATCH;
2442 break;
2443 case 'n':
2444 opts |= PF_OPT_NOACTION;
2445 break;
2446 case 'N':
2447 loadopt |= PFCTL_FLAG_NAT;
2448 break;
2449 case 'r':
2450 opts |= PF_OPT_USEDNS;
2451 break;
2452 case 'f':
2453 rulesopt = optarg;
2454 mode = O_RDWR;
2455 break;
2456 case 'g':
2457 opts |= PF_OPT_DEBUG;
2458 break;
2459 case 'A':
2460 loadopt |= PFCTL_FLAG_ALTQ;
2461 break;
2462 case 'R':
2463 loadopt |= PFCTL_FLAG_FILTER;
2464 break;
2465 case 'o':
2466 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2467 if (optiopt == NULL) {
2468 warnx("Unknown optimization '%s'", optarg);
2469 usage();
2470 }
2471 opts |= PF_OPT_OPTIMIZE;
2472 break;
2473 case 'O':
2474 loadopt |= PFCTL_FLAG_OPTION;
2475 break;
2476 case 'p':
2477 pf_device = optarg;
2478 break;
2479 case 'P':
2480 opts |= PF_OPT_NUMERIC;
2481 break;
2482 case 's':
2483 showopt = pfctl_lookup_option(optarg, showopt_list);
2484 if (showopt == NULL) {
2485 warnx("Unknown show modifier '%s'", optarg);
2486 usage();
2487 }
2488 break;
2489 case 't':
2490 tableopt = optarg;
2491 break;
2492 case 'T':
2493 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2494 if (tblcmdopt == NULL) {
2495 warnx("Unknown table command '%s'", optarg);
2496 usage();
2497 }
2498 break;
2499 case 'v':
2500 if (opts & PF_OPT_VERBOSE)
2501 opts |= PF_OPT_VERBOSE2;
2502 opts |= PF_OPT_VERBOSE;
2503 break;
2504 case 'x':
2505 debugopt = pfctl_lookup_option(optarg, debugopt_list);
2506 if (debugopt == NULL) {
2507 warnx("Unknown debug level '%s'", optarg);
2508 usage();
2509 }
2510 mode = O_RDWR;
2511 break;
2512 case 'z':
2513 opts |= PF_OPT_CLRRULECTRS;
2514 mode = O_RDWR;
2515 break;
2516 case 'h':
2517 /* FALLTHROUGH */
2518 default:
2519 usage();
2520 /* NOTREACHED */
2521 }
2522 }
2523
2524 if (tblcmdopt != NULL) {
2525 argc -= optind;
2526 argv += optind;
2527 ch = *tblcmdopt;
2528 if (ch == 'l') {
2529 loadopt |= PFCTL_FLAG_TABLE;
2530 tblcmdopt = NULL;
2531 } else
2532 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
2533 } else if (argc != optind) {
2534 warnx("unknown command line argument: %s ...", argv[optind]);
2535 usage();
2536 /* NOTREACHED */
2537 }
2538 if (loadopt == 0)
2539 loadopt = ~0;
2540
2541 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2542 errx(1, "pfctl: calloc");
2543 memset(anchorname, 0, sizeof(anchorname));
2544 if (anchoropt != NULL) {
2545 int len = strlen(anchoropt);
2546
2547 if (anchoropt[len - 1] == '*') {
2548 if (len >= 2 && anchoropt[len - 2] == '/')
2549 anchoropt[len - 2] = '\0';
2550 else
2551 anchoropt[len - 1] = '\0';
2552 opts |= PF_OPT_RECURSE;
2553 }
2554 if (strlcpy(anchorname, anchoropt,
2555 sizeof(anchorname)) >= sizeof(anchorname))
2556 errx(1, "anchor name '%s' too long",
2557 anchoropt);
2558 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE;
2559 }
2560
2561 if ((opts & PF_OPT_NOACTION) == 0) {
2562 dev = open(pf_device, mode);
2563 if (dev == -1)
2564 err(1, "%s", pf_device);
2565 altqsupport = pfctl_test_altqsupport(dev, opts);
2566 } else {
2567 dev = open(pf_device, O_RDONLY);
2568 if (dev >= 0)
2569 opts |= PF_OPT_DUMMYACTION;
2570 /* turn off options */
2571 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
2572 clearopt = showopt = debugopt = NULL;
2573 #if !defined(ENABLE_ALTQ)
2574 altqsupport = 0;
2575 #else
2576 altqsupport = 1;
2577 #endif
2578 }
2579
2580 if (opts & PF_OPT_DISABLE)
2581 if (pfctl_disable(dev, opts))
2582 error = 1;
2583
2584 if (showopt != NULL) {
2585 switch (*showopt) {
2586 case 'A':
2587 pfctl_show_anchors(dev, opts, anchorname);
2588 break;
2589 case 'r':
2590 pfctl_load_fingerprints(dev, opts);
2591 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
2592 anchorname, 0, 0);
2593 break;
2594 case 'l':
2595 pfctl_load_fingerprints(dev, opts);
2596 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
2597 anchorname, 0, 0);
2598 break;
2599 case 'n':
2600 pfctl_load_fingerprints(dev, opts);
2601 pfctl_show_nat(dev, path, opts, anchorname, 0);
2602 break;
2603 case 'q':
2604 pfctl_show_altq(dev, ifaceopt, opts,
2605 opts & PF_OPT_VERBOSE2);
2606 break;
2607 case 's':
2608 pfctl_show_states(dev, ifaceopt, opts);
2609 break;
2610 case 'S':
2611 pfctl_show_src_nodes(dev, opts);
2612 break;
2613 case 'i':
2614 pfctl_show_status(dev, opts);
2615 break;
2616 case 'R':
2617 error = pfctl_show_running(dev);
2618 break;
2619 case 't':
2620 pfctl_show_timeouts(dev, opts);
2621 break;
2622 case 'm':
2623 pfctl_show_limits(dev, opts);
2624 break;
2625 case 'a':
2626 opts |= PF_OPT_SHOWALL;
2627 pfctl_load_fingerprints(dev, opts);
2628
2629 pfctl_show_nat(dev, path, opts, anchorname, 0);
2630 pfctl_show_rules(dev, path, opts, 0, anchorname, 0, 0);
2631 pfctl_show_altq(dev, ifaceopt, opts, 0);
2632 pfctl_show_states(dev, ifaceopt, opts);
2633 pfctl_show_src_nodes(dev, opts);
2634 pfctl_show_status(dev, opts);
2635 pfctl_show_rules(dev, path, opts, 1, anchorname, 0, 0);
2636 pfctl_show_timeouts(dev, opts);
2637 pfctl_show_limits(dev, opts);
2638 pfctl_show_tables(anchorname, opts);
2639 pfctl_show_fingerprints(opts);
2640 break;
2641 case 'T':
2642 pfctl_show_tables(anchorname, opts);
2643 break;
2644 case 'o':
2645 pfctl_load_fingerprints(dev, opts);
2646 pfctl_show_fingerprints(opts);
2647 break;
2648 case 'I':
2649 pfctl_show_ifaces(ifaceopt, opts);
2650 break;
2651 }
2652 }
2653
2654 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL)
2655 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
2656 anchorname, 0, 0);
2657
2658 if (clearopt != NULL) {
2659 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2660 errx(1, "anchor names beginning with '_' cannot "
2661 "be modified from the command line");
2662
2663 switch (*clearopt) {
2664 case 'r':
2665 pfctl_flush_rules(dev, opts, anchorname);
2666 break;
2667 case 'n':
2668 pfctl_flush_nat(dev, opts, anchorname);
2669 break;
2670 case 'q':
2671 pfctl_clear_altq(dev, opts);
2672 break;
2673 case 's':
2674 pfctl_clear_iface_states(dev, ifaceopt, opts);
2675 break;
2676 case 'S':
2677 pfctl_clear_src_nodes(dev, opts);
2678 break;
2679 case 'i':
2680 pfctl_clear_stats(dev, opts);
2681 break;
2682 case 'a':
2683 pfctl_flush_rules(dev, opts, anchorname);
2684 pfctl_flush_nat(dev, opts, anchorname);
2685 pfctl_clear_tables(anchorname, opts);
2686 if (!*anchorname) {
2687 pfctl_clear_altq(dev, opts);
2688 pfctl_clear_iface_states(dev, ifaceopt, opts);
2689 pfctl_clear_src_nodes(dev, opts);
2690 pfctl_clear_stats(dev, opts);
2691 pfctl_clear_fingerprints(dev, opts);
2692 pfctl_clear_interface_flags(dev, opts);
2693 }
2694 break;
2695 case 'o':
2696 pfctl_clear_fingerprints(dev, opts);
2697 break;
2698 case 'T':
2699 pfctl_clear_tables(anchorname, opts);
2700 break;
2701 }
2702 }
2703 if (state_killers) {
2704 if (!strcmp(state_kill[0], "label"))
2705 pfctl_label_kill_states(dev, ifaceopt, opts);
2706 else if (!strcmp(state_kill[0], "id"))
2707 pfctl_id_kill_states(dev, ifaceopt, opts);
2708 else if (!strcmp(state_kill[0], "gateway"))
2709 pfctl_gateway_kill_states(dev, ifaceopt, opts);
2710 else
2711 pfctl_net_kill_states(dev, ifaceopt, opts);
2712 }
2713
2714 if (src_node_killers)
2715 pfctl_kill_src_nodes(dev, ifaceopt, opts);
2716
2717 if (tblcmdopt != NULL) {
2718 error = pfctl_command_tables(argc, argv, tableopt,
2719 tblcmdopt, rulesopt, anchorname, opts);
2720 rulesopt = NULL;
2721 }
2722 if (optiopt != NULL) {
2723 switch (*optiopt) {
2724 case 'n':
2725 optimize = 0;
2726 break;
2727 case 'b':
2728 optimize |= PF_OPTIMIZE_BASIC;
2729 break;
2730 case 'o':
2731 case 'p':
2732 optimize |= PF_OPTIMIZE_PROFILE;
2733 break;
2734 }
2735 }
2736
2737 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
2738 !anchorname[0] && !(opts & PF_OPT_NOACTION))
2739 if (pfctl_get_skip_ifaces())
2740 error = 1;
2741
2742 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
2743 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
2744 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
2745 error = 1;
2746
2747 if (rulesopt != NULL) {
2748 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2749 errx(1, "anchor names beginning with '_' cannot "
2750 "be modified from the command line");
2751 if (pfctl_rules(dev, rulesopt, opts, optimize,
2752 anchorname, NULL))
2753 error = 1;
2754 else if (!(opts & PF_OPT_NOACTION) &&
2755 (loadopt & PFCTL_FLAG_TABLE))
2756 warn_namespace_collision(NULL);
2757 }
2758
2759 if (opts & PF_OPT_ENABLE)
2760 if (pfctl_enable(dev, opts))
2761 error = 1;
2762
2763 if (debugopt != NULL) {
2764 switch (*debugopt) {
2765 case 'n':
2766 pfctl_debug(dev, PF_DEBUG_NONE, opts);
2767 break;
2768 case 'u':
2769 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
2770 break;
2771 case 'm':
2772 pfctl_debug(dev, PF_DEBUG_MISC, opts);
2773 break;
2774 case 'l':
2775 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
2776 break;
2777 }
2778 }
2779
2780 exit(error);
2781 }
2782