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 #define PFIOC_USE_LATEST
38
39 #include <sys/types.h>
40 #include <sys/ioctl.h>
41 #include <sys/nv.h>
42 #include <sys/socket.h>
43 #include <sys/stat.h>
44 #include <sys/endian.h>
45
46 #include <net/if.h>
47 #include <netinet/in.h>
48 #include <net/pfvar.h>
49 #include <arpa/inet.h>
50 #include <net/altq/altq.h>
51 #include <sys/sysctl.h>
52
53 #include <err.h>
54 #include <errno.h>
55 #include <fcntl.h>
56 #include <libpfctl.h>
57 #include <limits.h>
58 #include <netdb.h>
59 #include <stdint.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <unistd.h>
64
65 #include "pfctl_parser.h"
66 #include "pfctl.h"
67
68 void usage(void);
69 int pfctl_enable(int, int);
70 int pfctl_disable(int, int);
71 int pfctl_clear_stats(int, int);
72 int pfctl_get_skip_ifaces(void);
73 int pfctl_check_skip_ifaces(char *);
74 int pfctl_adjust_skip_ifaces(struct pfctl *);
75 int pfctl_clear_interface_flags(int, int);
76 int pfctl_flush_rules(int, int, char *);
77 int pfctl_flush_nat(int, int, char *);
78 int pfctl_clear_altq(int, int);
79 int pfctl_clear_src_nodes(int, int);
80 int pfctl_clear_iface_states(int, const char *, int);
81 void pfctl_addrprefix(char *, struct pf_addr *);
82 int pfctl_kill_src_nodes(int, const char *, int);
83 int pfctl_net_kill_states(int, const char *, int);
84 int pfctl_gateway_kill_states(int, const char *, int);
85 int pfctl_label_kill_states(int, const char *, int);
86 int pfctl_id_kill_states(int, const char *, int);
87 void pfctl_init_options(struct pfctl *);
88 int pfctl_load_options(struct pfctl *);
89 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
90 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
91 int pfctl_load_debug(struct pfctl *, unsigned int);
92 int pfctl_load_logif(struct pfctl *, char *);
93 int pfctl_load_hostid(struct pfctl *, u_int32_t);
94 int pfctl_load_syncookies(struct pfctl *, u_int8_t);
95 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
96 const char *);
97 void pfctl_print_rule_counters(struct pfctl_rule *, int);
98 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int, int);
99 int pfctl_show_nat(int, const char *, int, char *, int, int);
100 int pfctl_show_src_nodes(int, int);
101 int pfctl_show_states(int, const char *, int);
102 int pfctl_show_status(int, int);
103 int pfctl_show_running(int);
104 int pfctl_show_timeouts(int, int);
105 int pfctl_show_limits(int, int);
106 void pfctl_debug(int, u_int32_t, int);
107 int pfctl_test_altqsupport(int, int);
108 int pfctl_show_anchors(int, int, char *);
109 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *);
110 int pfctl_load_ruleset(struct pfctl *, char *,
111 struct pfctl_ruleset *, int, int);
112 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
113 const char *pfctl_lookup_option(char *, const char * const *);
114
115 static struct pfctl_anchor_global pf_anchors;
116 static struct pfctl_anchor pf_main_anchor;
117 static struct pfr_buffer skip_b;
118
119 static const char *clearopt;
120 static char *rulesopt;
121 static const char *showopt;
122 static const char *debugopt;
123 static char *anchoropt;
124 static const char *optiopt = NULL;
125 static const char *pf_device = "/dev/pf";
126 static char *ifaceopt;
127 static char *tableopt;
128 static const char *tblcmdopt;
129 static int src_node_killers;
130 static char *src_node_kill[2];
131 static int state_killers;
132 static char *state_kill[2];
133 int loadopt;
134 int altqsupport;
135
136 int dev = -1;
137 static int first_title = 1;
138 static int labels = 0;
139
140 #define INDENT(d, o) do { \
141 if (o) { \
142 int i; \
143 for (i=0; i < d; i++) \
144 printf(" "); \
145 } \
146 } while (0); \
147
148
149 static const struct {
150 const char *name;
151 int index;
152 } pf_limits[] = {
153 { "states", PF_LIMIT_STATES },
154 { "src-nodes", PF_LIMIT_SRC_NODES },
155 { "frags", PF_LIMIT_FRAGS },
156 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
157 { NULL, 0 }
158 };
159
160 struct pf_hint {
161 const char *name;
162 int timeout;
163 };
164 static const struct pf_hint pf_hint_normal[] = {
165 { "tcp.first", 2 * 60 },
166 { "tcp.opening", 30 },
167 { "tcp.established", 24 * 60 * 60 },
168 { "tcp.closing", 15 * 60 },
169 { "tcp.finwait", 45 },
170 { "tcp.closed", 90 },
171 { "tcp.tsdiff", 30 },
172 { NULL, 0 }
173 };
174 static const struct pf_hint pf_hint_satellite[] = {
175 { "tcp.first", 3 * 60 },
176 { "tcp.opening", 30 + 5 },
177 { "tcp.established", 24 * 60 * 60 },
178 { "tcp.closing", 15 * 60 + 5 },
179 { "tcp.finwait", 45 + 5 },
180 { "tcp.closed", 90 + 5 },
181 { "tcp.tsdiff", 60 },
182 { NULL, 0 }
183 };
184 static const struct pf_hint pf_hint_conservative[] = {
185 { "tcp.first", 60 * 60 },
186 { "tcp.opening", 15 * 60 },
187 { "tcp.established", 5 * 24 * 60 * 60 },
188 { "tcp.closing", 60 * 60 },
189 { "tcp.finwait", 10 * 60 },
190 { "tcp.closed", 3 * 60 },
191 { "tcp.tsdiff", 60 },
192 { NULL, 0 }
193 };
194 static const struct pf_hint pf_hint_aggressive[] = {
195 { "tcp.first", 30 },
196 { "tcp.opening", 5 },
197 { "tcp.established", 5 * 60 * 60 },
198 { "tcp.closing", 60 },
199 { "tcp.finwait", 30 },
200 { "tcp.closed", 30 },
201 { "tcp.tsdiff", 10 },
202 { NULL, 0 }
203 };
204
205 static const struct {
206 const char *name;
207 const struct pf_hint *hint;
208 } pf_hints[] = {
209 { "normal", pf_hint_normal },
210 { "satellite", pf_hint_satellite },
211 { "high-latency", pf_hint_satellite },
212 { "conservative", pf_hint_conservative },
213 { "aggressive", pf_hint_aggressive },
214 { NULL, NULL }
215 };
216
217 static const char * const clearopt_list[] = {
218 "nat", "queue", "rules", "Sources",
219 "states", "info", "Tables", "osfp", "all", NULL
220 };
221
222 static const char * const showopt_list[] = {
223 "nat", "queue", "rules", "Anchors", "Sources", "states", "info",
224 "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp",
225 "Running", "all", NULL
226 };
227
228 static const char * const tblcmdopt_list[] = {
229 "kill", "flush", "add", "delete", "load", "replace", "show",
230 "test", "zero", "expire", "reset", NULL
231 };
232
233 static const char * const debugopt_list[] = {
234 "none", "urgent", "misc", "loud", NULL
235 };
236
237 static const char * const optiopt_list[] = {
238 "none", "basic", "profile", NULL
239 };
240
241 void
usage(void)242 usage(void)
243 {
244 extern char *__progname;
245
246 fprintf(stderr,
247 "usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
248 "\t[-f file] [-i interface] [-K host | network]\n"
249 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
250 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
251 __progname);
252
253 exit(1);
254 }
255
256 /*
257 * Cache protocol number to name translations.
258 *
259 * Translation is performed a lot e.g., when dumping states and
260 * getprotobynumber is incredibly expensive.
261 *
262 * Note from the getprotobynumber(3) manpage:
263 * <quote>
264 * These functions use a thread-specific data space; if the data is needed
265 * for future use, it should be copied before any subsequent calls overwrite
266 * it. Only the Internet protocols are currently understood.
267 * </quote>
268 *
269 * Consequently we only cache the name and strdup it for safety.
270 *
271 * At the time of writing this comment the last entry in /etc/protocols is:
272 * divert 258 DIVERT # Divert pseudo-protocol [non IANA]
273 */
274 const char *
pfctl_proto2name(int proto)275 pfctl_proto2name(int proto)
276 {
277 static const char *pfctl_proto_cache[259];
278 struct protoent *p;
279
280 if (proto >= nitems(pfctl_proto_cache)) {
281 p = getprotobynumber(proto);
282 if (p == NULL) {
283 return (NULL);
284 }
285 return (p->p_name);
286 }
287
288 if (pfctl_proto_cache[proto] == NULL) {
289 p = getprotobynumber(proto);
290 if (p == NULL) {
291 return (NULL);
292 }
293 pfctl_proto_cache[proto] = strdup(p->p_name);
294 }
295
296 return (pfctl_proto_cache[proto]);
297 }
298
299 int
pfctl_enable(int dev,int opts)300 pfctl_enable(int dev, int opts)
301 {
302 if (ioctl(dev, DIOCSTART)) {
303 if (errno == EEXIST)
304 errx(1, "pf already enabled");
305 else if (errno == ESRCH)
306 errx(1, "pfil registeration failed");
307 else
308 err(1, "DIOCSTART");
309 }
310 if ((opts & PF_OPT_QUIET) == 0)
311 fprintf(stderr, "pf enabled\n");
312
313 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
314 if (errno != EEXIST)
315 err(1, "DIOCSTARTALTQ");
316
317 return (0);
318 }
319
320 int
pfctl_disable(int dev,int opts)321 pfctl_disable(int dev, int opts)
322 {
323 if (ioctl(dev, DIOCSTOP)) {
324 if (errno == ENOENT)
325 errx(1, "pf not enabled");
326 else
327 err(1, "DIOCSTOP");
328 }
329 if ((opts & PF_OPT_QUIET) == 0)
330 fprintf(stderr, "pf disabled\n");
331
332 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
333 if (errno != ENOENT)
334 err(1, "DIOCSTOPALTQ");
335
336 return (0);
337 }
338
339 int
pfctl_clear_stats(int dev,int opts)340 pfctl_clear_stats(int dev, int opts)
341 {
342 if (ioctl(dev, DIOCCLRSTATUS))
343 err(1, "DIOCCLRSTATUS");
344 if ((opts & PF_OPT_QUIET) == 0)
345 fprintf(stderr, "pf: statistics cleared\n");
346 return (0);
347 }
348
349 int
pfctl_get_skip_ifaces(void)350 pfctl_get_skip_ifaces(void)
351 {
352 bzero(&skip_b, sizeof(skip_b));
353 skip_b.pfrb_type = PFRB_IFACES;
354 for (;;) {
355 pfr_buf_grow(&skip_b, skip_b.pfrb_size);
356 skip_b.pfrb_size = skip_b.pfrb_msize;
357 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
358 err(1, "pfi_get_ifaces");
359 if (skip_b.pfrb_size <= skip_b.pfrb_msize)
360 break;
361 }
362 return (0);
363 }
364
365 int
pfctl_check_skip_ifaces(char * ifname)366 pfctl_check_skip_ifaces(char *ifname)
367 {
368 struct pfi_kif *p;
369 struct node_host *h = NULL, *n = NULL;
370
371 PFRB_FOREACH(p, &skip_b) {
372 if (!strcmp(ifname, p->pfik_name) &&
373 (p->pfik_flags & PFI_IFLAG_SKIP))
374 p->pfik_flags &= ~PFI_IFLAG_SKIP;
375 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
376 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
377 continue;
378
379 for (n = h; n != NULL; n = n->next) {
380 if (p->pfik_ifp == NULL)
381 continue;
382 if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
383 continue;
384
385 p->pfik_flags &= ~PFI_IFLAG_SKIP;
386 }
387 }
388 }
389 return (0);
390 }
391
392 int
pfctl_adjust_skip_ifaces(struct pfctl * pf)393 pfctl_adjust_skip_ifaces(struct pfctl *pf)
394 {
395 struct pfi_kif *p, *pp;
396 struct node_host *h = NULL, *n = NULL;
397
398 PFRB_FOREACH(p, &skip_b) {
399 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
400 continue;
401
402 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
403 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
404 continue;
405
406 for (n = h; n != NULL; n = n->next)
407 PFRB_FOREACH(pp, &skip_b) {
408 if (pp->pfik_ifp == NULL)
409 continue;
410
411 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
412 continue;
413
414 if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
415 pfctl_set_interface_flags(pf,
416 pp->pfik_name, PFI_IFLAG_SKIP, 1);
417 if (pp->pfik_flags & PFI_IFLAG_SKIP)
418 pp->pfik_flags &= ~PFI_IFLAG_SKIP;
419 }
420 }
421
422 PFRB_FOREACH(p, &skip_b) {
423 if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP))
424 continue;
425
426 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
427 }
428
429 return (0);
430 }
431
432 int
pfctl_clear_interface_flags(int dev,int opts)433 pfctl_clear_interface_flags(int dev, int opts)
434 {
435 struct pfioc_iface pi;
436
437 if ((opts & PF_OPT_NOACTION) == 0) {
438 bzero(&pi, sizeof(pi));
439 pi.pfiio_flags = PFI_IFLAG_SKIP;
440
441 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
442 err(1, "DIOCCLRIFFLAG");
443 if ((opts & PF_OPT_QUIET) == 0)
444 fprintf(stderr, "pf: interface flags reset\n");
445 }
446 return (0);
447 }
448
449 int
pfctl_flush_rules(int dev,int opts,char * anchorname)450 pfctl_flush_rules(int dev, int opts, char *anchorname)
451 {
452 int ret;
453
454 ret = pfctl_clear_rules(dev, anchorname);
455 if (ret != 0)
456 err(1, "pfctl_clear_rules");
457 if ((opts & PF_OPT_QUIET) == 0)
458 fprintf(stderr, "rules cleared\n");
459 return (0);
460 }
461
462 int
pfctl_flush_nat(int dev,int opts,char * anchorname)463 pfctl_flush_nat(int dev, int opts, char *anchorname)
464 {
465 int ret;
466
467 ret = pfctl_clear_nat(dev, anchorname);
468 if (ret != 0)
469 err(1, "pfctl_clear_nat");
470 if ((opts & PF_OPT_QUIET) == 0)
471 fprintf(stderr, "nat cleared\n");
472 return (0);
473 }
474
475 int
pfctl_clear_altq(int dev,int opts)476 pfctl_clear_altq(int dev, int opts)
477 {
478 struct pfr_buffer t;
479
480 if (!altqsupport)
481 return (-1);
482 memset(&t, 0, sizeof(t));
483 t.pfrb_type = PFRB_TRANS;
484 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
485 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
486 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
487 err(1, "pfctl_clear_altq");
488 if ((opts & PF_OPT_QUIET) == 0)
489 fprintf(stderr, "altq cleared\n");
490 return (0);
491 }
492
493 int
pfctl_clear_src_nodes(int dev,int opts)494 pfctl_clear_src_nodes(int dev, int opts)
495 {
496 if (ioctl(dev, DIOCCLRSRCNODES))
497 err(1, "DIOCCLRSRCNODES");
498 if ((opts & PF_OPT_QUIET) == 0)
499 fprintf(stderr, "source tracking entries cleared\n");
500 return (0);
501 }
502
503 int
pfctl_clear_iface_states(int dev,const char * iface,int opts)504 pfctl_clear_iface_states(int dev, const char *iface, int opts)
505 {
506 struct pfctl_kill kill;
507 unsigned int killed;
508
509 memset(&kill, 0, sizeof(kill));
510 if (iface != NULL && strlcpy(kill.ifname, iface,
511 sizeof(kill.ifname)) >= sizeof(kill.ifname))
512 errx(1, "invalid interface: %s", iface);
513
514 if (opts & PF_OPT_KILLMATCH)
515 kill.kill_match = true;
516
517 if (pfctl_clear_states(dev, &kill, &killed))
518 err(1, "DIOCCLRSTATES");
519 if ((opts & PF_OPT_QUIET) == 0)
520 fprintf(stderr, "%d states cleared\n", killed);
521 return (0);
522 }
523
524 void
pfctl_addrprefix(char * addr,struct pf_addr * mask)525 pfctl_addrprefix(char *addr, struct pf_addr *mask)
526 {
527 char *p;
528 const char *errstr;
529 int prefix, ret_ga, q, r;
530 struct addrinfo hints, *res;
531
532 if ((p = strchr(addr, '/')) == NULL)
533 return;
534
535 *p++ = '\0';
536 prefix = strtonum(p, 0, 128, &errstr);
537 if (errstr)
538 errx(1, "prefix is %s: %s", errstr, p);
539
540 bzero(&hints, sizeof(hints));
541 /* prefix only with numeric addresses */
542 hints.ai_flags |= AI_NUMERICHOST;
543
544 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
545 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
546 /* NOTREACHED */
547 }
548
549 if (res->ai_family == AF_INET && prefix > 32)
550 errx(1, "prefix too long for AF_INET");
551 else if (res->ai_family == AF_INET6 && prefix > 128)
552 errx(1, "prefix too long for AF_INET6");
553
554 q = prefix >> 3;
555 r = prefix & 7;
556 switch (res->ai_family) {
557 case AF_INET:
558 bzero(&mask->v4, sizeof(mask->v4));
559 mask->v4.s_addr = htonl((u_int32_t)
560 (0xffffffffffULL << (32 - prefix)));
561 break;
562 case AF_INET6:
563 bzero(&mask->v6, sizeof(mask->v6));
564 if (q > 0)
565 memset((void *)&mask->v6, 0xff, q);
566 if (r > 0)
567 *((u_char *)&mask->v6 + q) =
568 (0xff00 >> r) & 0xff;
569 break;
570 }
571 freeaddrinfo(res);
572 }
573
574 int
pfctl_kill_src_nodes(int dev,const char * iface,int opts)575 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
576 {
577 struct pfioc_src_node_kill psnk;
578 struct addrinfo *res[2], *resp[2];
579 struct sockaddr last_src, last_dst;
580 int killed, sources, dests;
581 int ret_ga;
582
583 killed = sources = dests = 0;
584
585 memset(&psnk, 0, sizeof(psnk));
586 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
587 sizeof(psnk.psnk_src.addr.v.a.mask));
588 memset(&last_src, 0xff, sizeof(last_src));
589 memset(&last_dst, 0xff, sizeof(last_dst));
590
591 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
592
593 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
594 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
595 /* NOTREACHED */
596 }
597 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
598 if (resp[0]->ai_addr == NULL)
599 continue;
600 /* We get lots of duplicates. Catch the easy ones */
601 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
602 continue;
603 last_src = *(struct sockaddr *)resp[0]->ai_addr;
604
605 psnk.psnk_af = resp[0]->ai_family;
606 sources++;
607
608 if (psnk.psnk_af == AF_INET)
609 psnk.psnk_src.addr.v.a.addr.v4 =
610 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
611 else if (psnk.psnk_af == AF_INET6)
612 psnk.psnk_src.addr.v.a.addr.v6 =
613 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
614 sin6_addr;
615 else
616 errx(1, "Unknown address family %d", psnk.psnk_af);
617
618 if (src_node_killers > 1) {
619 dests = 0;
620 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
621 sizeof(psnk.psnk_dst.addr.v.a.mask));
622 memset(&last_dst, 0xff, sizeof(last_dst));
623 pfctl_addrprefix(src_node_kill[1],
624 &psnk.psnk_dst.addr.v.a.mask);
625 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
626 &res[1]))) {
627 errx(1, "getaddrinfo: %s",
628 gai_strerror(ret_ga));
629 /* NOTREACHED */
630 }
631 for (resp[1] = res[1]; resp[1];
632 resp[1] = resp[1]->ai_next) {
633 if (resp[1]->ai_addr == NULL)
634 continue;
635 if (psnk.psnk_af != resp[1]->ai_family)
636 continue;
637
638 if (memcmp(&last_dst, resp[1]->ai_addr,
639 sizeof(last_dst)) == 0)
640 continue;
641 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
642
643 dests++;
644
645 if (psnk.psnk_af == AF_INET)
646 psnk.psnk_dst.addr.v.a.addr.v4 =
647 ((struct sockaddr_in *)resp[1]->
648 ai_addr)->sin_addr;
649 else if (psnk.psnk_af == AF_INET6)
650 psnk.psnk_dst.addr.v.a.addr.v6 =
651 ((struct sockaddr_in6 *)resp[1]->
652 ai_addr)->sin6_addr;
653 else
654 errx(1, "Unknown address family %d",
655 psnk.psnk_af);
656
657 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
658 err(1, "DIOCKILLSRCNODES");
659 killed += psnk.psnk_killed;
660 }
661 freeaddrinfo(res[1]);
662 } else {
663 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
664 err(1, "DIOCKILLSRCNODES");
665 killed += psnk.psnk_killed;
666 }
667 }
668
669 freeaddrinfo(res[0]);
670
671 if ((opts & PF_OPT_QUIET) == 0)
672 fprintf(stderr, "killed %d src nodes from %d sources and %d "
673 "destinations\n", killed, sources, dests);
674 return (0);
675 }
676
677 int
pfctl_net_kill_states(int dev,const char * iface,int opts)678 pfctl_net_kill_states(int dev, const char *iface, int opts)
679 {
680 struct pfctl_kill kill;
681 struct addrinfo *res[2], *resp[2];
682 struct sockaddr last_src, last_dst;
683 unsigned int newkilled;
684 int killed, sources, dests;
685 int ret_ga;
686
687 killed = sources = dests = 0;
688
689 memset(&kill, 0, sizeof(kill));
690 memset(&kill.src.addr.v.a.mask, 0xff,
691 sizeof(kill.src.addr.v.a.mask));
692 memset(&last_src, 0xff, sizeof(last_src));
693 memset(&last_dst, 0xff, sizeof(last_dst));
694 if (iface != NULL && strlcpy(kill.ifname, iface,
695 sizeof(kill.ifname)) >= sizeof(kill.ifname))
696 errx(1, "invalid interface: %s", iface);
697
698 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
699
700 if (opts & PF_OPT_KILLMATCH)
701 kill.kill_match = true;
702
703 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
704 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
705 /* NOTREACHED */
706 }
707 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
708 if (resp[0]->ai_addr == NULL)
709 continue;
710 /* We get lots of duplicates. Catch the easy ones */
711 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
712 continue;
713 last_src = *(struct sockaddr *)resp[0]->ai_addr;
714
715 kill.af = resp[0]->ai_family;
716 sources++;
717
718 if (kill.af == AF_INET)
719 kill.src.addr.v.a.addr.v4 =
720 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
721 else if (kill.af == AF_INET6)
722 kill.src.addr.v.a.addr.v6 =
723 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
724 sin6_addr;
725 else
726 errx(1, "Unknown address family %d", kill.af);
727
728 if (state_killers > 1) {
729 dests = 0;
730 memset(&kill.dst.addr.v.a.mask, 0xff,
731 sizeof(kill.dst.addr.v.a.mask));
732 memset(&last_dst, 0xff, sizeof(last_dst));
733 pfctl_addrprefix(state_kill[1],
734 &kill.dst.addr.v.a.mask);
735 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
736 &res[1]))) {
737 errx(1, "getaddrinfo: %s",
738 gai_strerror(ret_ga));
739 /* NOTREACHED */
740 }
741 for (resp[1] = res[1]; resp[1];
742 resp[1] = resp[1]->ai_next) {
743 if (resp[1]->ai_addr == NULL)
744 continue;
745 if (kill.af != resp[1]->ai_family)
746 continue;
747
748 if (memcmp(&last_dst, resp[1]->ai_addr,
749 sizeof(last_dst)) == 0)
750 continue;
751 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
752
753 dests++;
754
755 if (kill.af == AF_INET)
756 kill.dst.addr.v.a.addr.v4 =
757 ((struct sockaddr_in *)resp[1]->
758 ai_addr)->sin_addr;
759 else if (kill.af == AF_INET6)
760 kill.dst.addr.v.a.addr.v6 =
761 ((struct sockaddr_in6 *)resp[1]->
762 ai_addr)->sin6_addr;
763 else
764 errx(1, "Unknown address family %d",
765 kill.af);
766
767 if (pfctl_kill_states(dev, &kill, &newkilled))
768 err(1, "DIOCKILLSTATES");
769 killed += newkilled;
770 }
771 freeaddrinfo(res[1]);
772 } else {
773 if (pfctl_kill_states(dev, &kill, &newkilled))
774 err(1, "DIOCKILLSTATES");
775 killed += newkilled;
776 }
777 }
778
779 freeaddrinfo(res[0]);
780
781 if ((opts & PF_OPT_QUIET) == 0)
782 fprintf(stderr, "killed %d states from %d sources and %d "
783 "destinations\n", killed, sources, dests);
784 return (0);
785 }
786
787 int
pfctl_gateway_kill_states(int dev,const char * iface,int opts)788 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
789 {
790 struct pfctl_kill kill;
791 struct addrinfo *res, *resp;
792 struct sockaddr last_src;
793 unsigned int newkilled;
794 int killed = 0;
795 int ret_ga;
796
797 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
798 warnx("no gateway specified");
799 usage();
800 }
801
802 memset(&kill, 0, sizeof(kill));
803 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
804 sizeof(kill.rt_addr.addr.v.a.mask));
805 memset(&last_src, 0xff, sizeof(last_src));
806 if (iface != NULL && strlcpy(kill.ifname, iface,
807 sizeof(kill.ifname)) >= sizeof(kill.ifname))
808 errx(1, "invalid interface: %s", iface);
809
810 if (opts & PF_OPT_KILLMATCH)
811 kill.kill_match = true;
812
813 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
814
815 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
816 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
817 /* NOTREACHED */
818 }
819 for (resp = res; resp; resp = resp->ai_next) {
820 if (resp->ai_addr == NULL)
821 continue;
822 /* We get lots of duplicates. Catch the easy ones */
823 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
824 continue;
825 last_src = *(struct sockaddr *)resp->ai_addr;
826
827 kill.af = resp->ai_family;
828
829 if (kill.af == AF_INET)
830 kill.rt_addr.addr.v.a.addr.v4 =
831 ((struct sockaddr_in *)resp->ai_addr)->sin_addr;
832 else if (kill.af == AF_INET6)
833 kill.rt_addr.addr.v.a.addr.v6 =
834 ((struct sockaddr_in6 *)resp->ai_addr)->
835 sin6_addr;
836 else
837 errx(1, "Unknown address family %d", kill.af);
838
839 if (pfctl_kill_states(dev, &kill, &newkilled))
840 err(1, "DIOCKILLSTATES");
841 killed += newkilled;
842 }
843
844 freeaddrinfo(res);
845
846 if ((opts & PF_OPT_QUIET) == 0)
847 fprintf(stderr, "killed %d states\n", killed);
848 return (0);
849 }
850
851 int
pfctl_label_kill_states(int dev,const char * iface,int opts)852 pfctl_label_kill_states(int dev, const char *iface, int opts)
853 {
854 struct pfctl_kill kill;
855 unsigned int killed;
856
857 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
858 warnx("no label specified");
859 usage();
860 }
861 memset(&kill, 0, sizeof(kill));
862 if (iface != NULL && strlcpy(kill.ifname, iface,
863 sizeof(kill.ifname)) >= sizeof(kill.ifname))
864 errx(1, "invalid interface: %s", iface);
865
866 if (opts & PF_OPT_KILLMATCH)
867 kill.kill_match = true;
868
869 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
870 sizeof(kill.label))
871 errx(1, "label too long: %s", state_kill[1]);
872
873 if (pfctl_kill_states(dev, &kill, &killed))
874 err(1, "DIOCKILLSTATES");
875
876 if ((opts & PF_OPT_QUIET) == 0)
877 fprintf(stderr, "killed %d states\n", killed);
878
879 return (0);
880 }
881
882 int
pfctl_id_kill_states(int dev,const char * iface,int opts)883 pfctl_id_kill_states(int dev, const char *iface, int opts)
884 {
885 struct pfctl_kill kill;
886 unsigned int killed;
887
888 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
889 warnx("no id specified");
890 usage();
891 }
892
893 memset(&kill, 0, sizeof(kill));
894
895 if (opts & PF_OPT_KILLMATCH)
896 kill.kill_match = true;
897
898 if ((sscanf(state_kill[1], "%jx/%x",
899 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
900 }
901 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
902 kill.cmp.creatorid = 0;
903 } else {
904 warnx("wrong id format specified");
905 usage();
906 }
907 if (kill.cmp.id == 0) {
908 warnx("cannot kill id 0");
909 usage();
910 }
911
912 if (pfctl_kill_states(dev, &kill, &killed))
913 err(1, "DIOCKILLSTATES");
914
915 if ((opts & PF_OPT_QUIET) == 0)
916 fprintf(stderr, "killed %d states\n", killed);
917
918 return (0);
919 }
920
921 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,const char * anchorname)922 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
923 u_int32_t ticket, int r_action, const char *anchorname)
924 {
925 struct pfioc_pooladdr pp;
926 struct pf_pooladdr *pa;
927 u_int32_t pnr, mpnr;
928
929 memset(&pp, 0, sizeof(pp));
930 memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
931 pp.r_action = r_action;
932 pp.r_num = nr;
933 pp.ticket = ticket;
934 if (ioctl(dev, DIOCGETADDRS, &pp)) {
935 warn("DIOCGETADDRS");
936 return (-1);
937 }
938 mpnr = pp.nr;
939 TAILQ_INIT(&pool->list);
940 for (pnr = 0; pnr < mpnr; ++pnr) {
941 pp.nr = pnr;
942 if (ioctl(dev, DIOCGETADDR, &pp)) {
943 warn("DIOCGETADDR");
944 return (-1);
945 }
946 pa = calloc(1, sizeof(struct pf_pooladdr));
947 if (pa == NULL)
948 err(1, "calloc");
949 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
950 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
951 }
952
953 return (0);
954 }
955
956 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)957 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
958 {
959 struct pf_pooladdr *pa;
960
961 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
962 TAILQ_REMOVE(&src->list, pa, entries);
963 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
964 }
965 }
966
967 void
pfctl_clear_pool(struct pfctl_pool * pool)968 pfctl_clear_pool(struct pfctl_pool *pool)
969 {
970 struct pf_pooladdr *pa;
971
972 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
973 TAILQ_REMOVE(&pool->list, pa, entries);
974 free(pa);
975 }
976 }
977
978 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)979 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
980 {
981 if (opts & PF_OPT_DEBUG) {
982 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
983 "p", "sa", "sp", "da", "dp" };
984 int i;
985
986 printf(" [ Skip steps: ");
987 for (i = 0; i < PF_SKIP_COUNT; ++i) {
988 if (rule->skip[i].nr == rule->nr + 1)
989 continue;
990 printf("%s=", t[i]);
991 if (rule->skip[i].nr == -1)
992 printf("end ");
993 else
994 printf("%u ", rule->skip[i].nr);
995 }
996 printf("]\n");
997
998 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
999 rule->qname, rule->qid, rule->pqname, rule->pqid);
1000 }
1001 if (opts & PF_OPT_VERBOSE) {
1002 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1003 "Bytes: %-10llu States: %-6ju]\n",
1004 (unsigned long long)rule->evaluations,
1005 (unsigned long long)(rule->packets[0] +
1006 rule->packets[1]),
1007 (unsigned long long)(rule->bytes[0] +
1008 rule->bytes[1]), (uintmax_t)rule->states_cur);
1009 if (!(opts & PF_OPT_DEBUG))
1010 printf(" [ Inserted: uid %u pid %u "
1011 "State Creations: %-6ju]\n",
1012 (unsigned)rule->cuid, (unsigned)rule->cpid,
1013 (uintmax_t)rule->states_tot);
1014 }
1015 }
1016
1017 void
pfctl_print_title(char * title)1018 pfctl_print_title(char *title)
1019 {
1020 if (!first_title)
1021 printf("\n");
1022 first_title = 0;
1023 printf("%s\n", title);
1024 }
1025
1026 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1027 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1028 char *anchorname, int depth, int wildcard)
1029 {
1030 struct pfctl_rules_info ri;
1031 struct pfctl_rule rule;
1032 char anchor_call[MAXPATHLEN];
1033 u_int32_t nr, header = 0;
1034 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1035 int numeric = opts & PF_OPT_NUMERIC;
1036 int len = strlen(path), ret = 0;
1037 char *npath, *p;
1038
1039 /*
1040 * Truncate a trailing / and * on an anchorname before searching for
1041 * the ruleset, this is syntactic sugar that doesn't actually make it
1042 * to the kernel.
1043 */
1044 if ((p = strrchr(anchorname, '/')) != NULL &&
1045 p[1] == '*' && p[2] == '\0') {
1046 p[0] = '\0';
1047 }
1048
1049 if (anchorname[0] == '/') {
1050 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1051 errx(1, "pfctl_rules: calloc");
1052 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1053 } else {
1054 if (path[0])
1055 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1056 else
1057 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1058 npath = path;
1059 }
1060
1061 /*
1062 * If this anchor was called with a wildcard path, go through
1063 * the rulesets in the anchor rather than the rules.
1064 */
1065 if (wildcard && (opts & PF_OPT_RECURSE)) {
1066 struct pfioc_ruleset prs;
1067 u_int32_t mnr, nr;
1068
1069 memset(&prs, 0, sizeof(prs));
1070 memcpy(prs.path, npath, sizeof(prs.path));
1071 if (ioctl(dev, DIOCGETRULESETS, &prs)) {
1072 if (errno == EINVAL)
1073 fprintf(stderr, "Anchor '%s' "
1074 "not found.\n", anchorname);
1075 else
1076 err(1, "DIOCGETRULESETS");
1077 }
1078 mnr = prs.nr;
1079
1080 for (nr = 0; nr < mnr; ++nr) {
1081 prs.nr = nr;
1082 if (ioctl(dev, DIOCGETRULESET, &prs))
1083 err(1, "DIOCGETRULESET");
1084 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1085 printf("anchor \"%s\" all {\n", prs.name);
1086 pfctl_show_rules(dev, npath, opts,
1087 format, prs.name, depth + 1, 0);
1088 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1089 printf("}\n");
1090 }
1091 path[len] = '\0';
1092 return (0);
1093 }
1094
1095 if (opts & PF_OPT_SHOWALL) {
1096 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1097 if (ret != 0) {
1098 warn("DIOCGETRULES");
1099 goto error;
1100 }
1101 header++;
1102 }
1103 ret = pfctl_get_rules_info(dev, &ri, PF_SCRUB, path);
1104 if (ret != 0) {
1105 warn("DIOCGETRULES");
1106 goto error;
1107 }
1108 if (opts & PF_OPT_SHOWALL) {
1109 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1110 pfctl_print_title("FILTER RULES:");
1111 else if (format == PFCTL_SHOW_LABELS && labels)
1112 pfctl_print_title("LABEL COUNTERS:");
1113 }
1114
1115 for (nr = 0; nr < ri.nr; ++nr) {
1116 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_SCRUB,
1117 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1118 warn("DIOCGETRULENV");
1119 goto error;
1120 }
1121
1122 if (pfctl_get_pool(dev, &rule.rpool,
1123 nr, ri.ticket, PF_SCRUB, path) != 0)
1124 goto error;
1125
1126 switch (format) {
1127 case PFCTL_SHOW_LABELS:
1128 break;
1129 case PFCTL_SHOW_RULES:
1130 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1131 labels = 1;
1132 print_rule(&rule, anchor_call, rule_numbers, numeric);
1133 printf("\n");
1134 pfctl_print_rule_counters(&rule, opts);
1135 break;
1136 case PFCTL_SHOW_NOTHING:
1137 break;
1138 }
1139 pfctl_clear_pool(&rule.rpool);
1140 }
1141 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1142 if (ret != 0) {
1143 warn("DIOCGETRULES");
1144 goto error;
1145 }
1146 for (nr = 0; nr < ri.nr; ++nr) {
1147 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_PASS,
1148 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1149 warn("DIOCGETRULE");
1150 goto error;
1151 }
1152
1153 if (pfctl_get_pool(dev, &rule.rpool,
1154 nr, ri.ticket, PF_PASS, path) != 0)
1155 goto error;
1156
1157 switch (format) {
1158 case PFCTL_SHOW_LABELS: {
1159 bool show = false;
1160 int i = 0;
1161
1162 while (rule.label[i][0]) {
1163 printf("%s ", rule.label[i++]);
1164 show = true;
1165 }
1166
1167 if (show) {
1168 printf("%llu %llu %llu %llu"
1169 " %llu %llu %llu %ju\n",
1170 (unsigned long long)rule.evaluations,
1171 (unsigned long long)(rule.packets[0] +
1172 rule.packets[1]),
1173 (unsigned long long)(rule.bytes[0] +
1174 rule.bytes[1]),
1175 (unsigned long long)rule.packets[0],
1176 (unsigned long long)rule.bytes[0],
1177 (unsigned long long)rule.packets[1],
1178 (unsigned long long)rule.bytes[1],
1179 (uintmax_t)rule.states_tot);
1180 }
1181 break;
1182 }
1183 case PFCTL_SHOW_RULES:
1184 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1185 labels = 1;
1186 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1187 print_rule(&rule, anchor_call, rule_numbers, numeric);
1188
1189 /*
1190 * If this is a 'unnamed' brace notation
1191 * anchor, OR the user has explicitly requested
1192 * recursion, print it recursively.
1193 */
1194 if (anchor_call[0] &&
1195 (((p = strrchr(anchor_call, '/')) ?
1196 p[1] == '_' : anchor_call[0] == '_') ||
1197 opts & PF_OPT_RECURSE)) {
1198 printf(" {\n");
1199 pfctl_print_rule_counters(&rule, opts);
1200 pfctl_show_rules(dev, npath, opts, format,
1201 anchor_call, depth + 1,
1202 rule.anchor_wildcard);
1203 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1204 printf("}\n");
1205 } else {
1206 printf("\n");
1207 pfctl_print_rule_counters(&rule, opts);
1208 }
1209 break;
1210 case PFCTL_SHOW_NOTHING:
1211 break;
1212 }
1213 pfctl_clear_pool(&rule.rpool);
1214 }
1215
1216 error:
1217 path[len] = '\0';
1218 return (ret);
1219 }
1220
1221 int
pfctl_show_nat(int dev,const char * path,int opts,char * anchorname,int depth,int wildcard)1222 pfctl_show_nat(int dev, const char *path, int opts, char *anchorname, int depth,
1223 int wildcard)
1224 {
1225 struct pfctl_rules_info ri;
1226 struct pfctl_rule rule;
1227 char anchor_call[MAXPATHLEN];
1228 u_int32_t nr;
1229 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1230 int i, dotitle = opts & PF_OPT_SHOWALL;
1231 int ret;
1232 int len = strlen(path);
1233 char *npath, *p;
1234
1235 /*
1236 * Truncate a trailing / and * on an anchorname before searching for
1237 * the ruleset, this is syntactic sugar that doesn't actually make it
1238 * to the kernel.
1239 */
1240 if ((p = strrchr(anchorname, '/')) != NULL &&
1241 p[1] == '*' && p[2] == '\0') {
1242 p[0] = '\0';
1243 }
1244
1245 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1246 errx(1, "pfctl_rules: calloc");
1247
1248 if (anchorname[0] == '/') {
1249 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1250 } else {
1251 snprintf(npath, MAXPATHLEN, "%s", path);
1252 if (npath[0])
1253 snprintf(&npath[len], MAXPATHLEN - len, "/%s", anchorname);
1254 else
1255 snprintf(&npath[len], MAXPATHLEN - len, "%s", anchorname);
1256 }
1257
1258 /*
1259 * If this anchor was called with a wildcard path, go through
1260 * the rulesets in the anchor rather than the rules.
1261 */
1262 if (wildcard && (opts & PF_OPT_RECURSE)) {
1263 struct pfioc_ruleset prs;
1264 u_int32_t mnr, nr;
1265 memset(&prs, 0, sizeof(prs));
1266 memcpy(prs.path, npath, sizeof(prs.path));
1267 if (ioctl(dev, DIOCGETRULESETS, &prs)) {
1268 if (errno == EINVAL)
1269 fprintf(stderr, "NAT anchor '%s' "
1270 "not found.\n", anchorname);
1271 else
1272 err(1, "DIOCGETRULESETS");
1273 }
1274 mnr = prs.nr;
1275
1276 for (nr = 0; nr < mnr; ++nr) {
1277 prs.nr = nr;
1278 if (ioctl(dev, DIOCGETRULESET, &prs))
1279 err(1, "DIOCGETRULESET");
1280 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1281 printf("nat-anchor \"%s\" all {\n", prs.name);
1282 pfctl_show_nat(dev, npath, opts,
1283 prs.name, depth + 1, 0);
1284 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1285 printf("}\n");
1286 }
1287 npath[len] = '\0';
1288 return (0);
1289 }
1290
1291 for (i = 0; i < 3; i++) {
1292 ret = pfctl_get_rules_info(dev, &ri, nattype[i], npath);
1293 if (ret != 0) {
1294 warn("DIOCGETRULES");
1295 return (-1);
1296 }
1297 for (nr = 0; nr < ri.nr; ++nr) {
1298 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1299
1300 if (pfctl_get_rule(dev, nr, ri.ticket, npath,
1301 nattype[i], &rule, anchor_call)) {
1302 warn("DIOCGETRULE");
1303 return (-1);
1304 }
1305 if (pfctl_get_pool(dev, &rule.rpool, nr,
1306 ri.ticket, nattype[i], npath) != 0)
1307 return (-1);
1308
1309 if (dotitle) {
1310 pfctl_print_title("TRANSLATION RULES:");
1311 dotitle = 0;
1312 }
1313 print_rule(&rule, anchor_call,
1314 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1315 if (anchor_call[0] &&
1316 (((p = strrchr(anchor_call, '/')) ?
1317 p[1] == '_' : anchor_call[0] == '_') ||
1318 opts & PF_OPT_RECURSE)) {
1319 printf(" {\n");
1320 pfctl_print_rule_counters(&rule, opts);
1321 pfctl_show_nat(dev, npath, opts, anchor_call,
1322 depth + 1, rule.anchor_wildcard);
1323 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1324 printf("}\n");
1325 } else {
1326 printf("\n");
1327 pfctl_print_rule_counters(&rule, opts);
1328 }
1329 }
1330 }
1331 return (0);
1332 }
1333
1334 int
pfctl_show_src_nodes(int dev,int opts)1335 pfctl_show_src_nodes(int dev, int opts)
1336 {
1337 struct pfioc_src_nodes psn;
1338 struct pf_src_node *p;
1339 char *inbuf = NULL, *newinbuf = NULL;
1340 unsigned int len = 0;
1341 int i;
1342
1343 memset(&psn, 0, sizeof(psn));
1344 for (;;) {
1345 psn.psn_len = len;
1346 if (len) {
1347 newinbuf = realloc(inbuf, len);
1348 if (newinbuf == NULL)
1349 err(1, "realloc");
1350 psn.psn_buf = inbuf = newinbuf;
1351 }
1352 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
1353 warn("DIOCGETSRCNODES");
1354 free(inbuf);
1355 return (-1);
1356 }
1357 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
1358 break;
1359 if (len == 0 && psn.psn_len == 0)
1360 goto done;
1361 if (len == 0 && psn.psn_len != 0)
1362 len = psn.psn_len;
1363 if (psn.psn_len == 0)
1364 goto done; /* no src_nodes */
1365 len *= 2;
1366 }
1367 p = psn.psn_src_nodes;
1368 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
1369 pfctl_print_title("SOURCE TRACKING NODES:");
1370 for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1371 print_src_node(p, opts);
1372 p++;
1373 }
1374 done:
1375 free(inbuf);
1376 return (0);
1377 }
1378
1379 int
pfctl_show_states(int dev,const char * iface,int opts)1380 pfctl_show_states(int dev, const char *iface, int opts)
1381 {
1382 struct pfctl_states states;
1383 struct pfctl_state *s;
1384 int dotitle = (opts & PF_OPT_SHOWALL);
1385
1386 memset(&states, 0, sizeof(states));
1387
1388 if (pfctl_get_states(dev, &states))
1389 return (-1);
1390
1391 TAILQ_FOREACH(s, &states.states, entry) {
1392 if (iface != NULL && strcmp(s->ifname, iface))
1393 continue;
1394 if (dotitle) {
1395 pfctl_print_title("STATES:");
1396 dotitle = 0;
1397 }
1398 print_state(s, opts);
1399 }
1400
1401 pfctl_free_states(&states);
1402
1403 return (0);
1404 }
1405
1406 int
pfctl_show_status(int dev,int opts)1407 pfctl_show_status(int dev, int opts)
1408 {
1409 struct pfctl_status *status;
1410 struct pfctl_syncookies cookies;
1411
1412 if ((status = pfctl_get_status(dev)) == NULL) {
1413 warn("DIOCGETSTATUS");
1414 return (-1);
1415 }
1416 if (pfctl_get_syncookies(dev, &cookies)) {
1417 pfctl_free_status(status);
1418 warn("DIOCGETSYNCOOKIES");
1419 return (-1);
1420 }
1421 if (opts & PF_OPT_SHOWALL)
1422 pfctl_print_title("INFO:");
1423 print_status(status, &cookies, opts);
1424 pfctl_free_status(status);
1425 return (0);
1426 }
1427
1428 int
pfctl_show_running(int dev)1429 pfctl_show_running(int dev)
1430 {
1431 struct pfctl_status *status;
1432 int running;
1433
1434 if ((status = pfctl_get_status(dev)) == NULL) {
1435 warn("DIOCGETSTATUS");
1436 return (-1);
1437 }
1438
1439 running = status->running;
1440
1441 print_running(status);
1442 pfctl_free_status(status);
1443 return (!running);
1444 }
1445
1446 int
pfctl_show_timeouts(int dev,int opts)1447 pfctl_show_timeouts(int dev, int opts)
1448 {
1449 struct pfioc_tm pt;
1450 int i;
1451
1452 if (opts & PF_OPT_SHOWALL)
1453 pfctl_print_title("TIMEOUTS:");
1454 memset(&pt, 0, sizeof(pt));
1455 for (i = 0; pf_timeouts[i].name; i++) {
1456 pt.timeout = pf_timeouts[i].timeout;
1457 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1458 err(1, "DIOCGETTIMEOUT");
1459 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1460 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1461 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1462 printf(" states");
1463 else
1464 printf("s");
1465 printf("\n");
1466 }
1467 return (0);
1468
1469 }
1470
1471 int
pfctl_show_limits(int dev,int opts)1472 pfctl_show_limits(int dev, int opts)
1473 {
1474 struct pfioc_limit pl;
1475 int i;
1476
1477 if (opts & PF_OPT_SHOWALL)
1478 pfctl_print_title("LIMITS:");
1479 memset(&pl, 0, sizeof(pl));
1480 for (i = 0; pf_limits[i].name; i++) {
1481 pl.index = pf_limits[i].index;
1482 if (ioctl(dev, DIOCGETLIMIT, &pl))
1483 err(1, "DIOCGETLIMIT");
1484 printf("%-13s ", pf_limits[i].name);
1485 if (pl.limit == UINT_MAX)
1486 printf("unlimited\n");
1487 else
1488 printf("hard limit %8u\n", pl.limit);
1489 }
1490 return (0);
1491 }
1492
1493 /* callbacks for rule/nat/rdr/addr */
1494 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af)1495 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
1496 {
1497 struct pf_pooladdr *pa;
1498
1499 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1500 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1501 err(1, "DIOCBEGINADDRS");
1502 }
1503
1504 pf->paddr.af = af;
1505 TAILQ_FOREACH(pa, &p->list, entries) {
1506 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1507 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1508 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1509 err(1, "DIOCADDADDR");
1510 }
1511 }
1512 return (0);
1513 }
1514
1515 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1516 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1517 const char *anchor_call)
1518 {
1519 u_int8_t rs_num;
1520 struct pfctl_rule *rule;
1521 struct pfctl_ruleset *rs;
1522 char *p;
1523
1524 rs_num = pf_get_ruleset_number(r->action);
1525 if (rs_num == PF_RULESET_MAX)
1526 errx(1, "Invalid rule type %d", r->action);
1527
1528 rs = &pf->anchor->ruleset;
1529
1530 if (anchor_call[0] && r->anchor == NULL) {
1531 /*
1532 * Don't make non-brace anchors part of the main anchor pool.
1533 */
1534 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1535 err(1, "pfctl_append_rule: calloc");
1536
1537 pf_init_ruleset(&r->anchor->ruleset);
1538 r->anchor->ruleset.anchor = r->anchor;
1539 if (strlcpy(r->anchor->path, anchor_call,
1540 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1541 errx(1, "pfctl_append_rule: strlcpy");
1542 if ((p = strrchr(anchor_call, '/')) != NULL) {
1543 if (!strlen(p))
1544 err(1, "pfctl_append_rule: bad anchor name %s",
1545 anchor_call);
1546 } else
1547 p = (char *)anchor_call;
1548 if (strlcpy(r->anchor->name, p,
1549 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1550 errx(1, "pfctl_append_rule: strlcpy");
1551 }
1552
1553 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1554 err(1, "calloc");
1555 bcopy(r, rule, sizeof(*rule));
1556 TAILQ_INIT(&rule->rpool.list);
1557 pfctl_move_pool(&r->rpool, &rule->rpool);
1558
1559 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1560 return (0);
1561 }
1562
1563 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a)1564 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a)
1565 {
1566 int osize = pf->trans->pfrb_size;
1567
1568 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1569 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1570 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1571 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1572 return (1);
1573 }
1574 if (a == pf->astack[0] && ((altqsupport &&
1575 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1576 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1577 return (2);
1578 }
1579 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1580 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1581 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1582 return (3);
1583 }
1584 if (pf->loadopt & PFCTL_FLAG_TABLE)
1585 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1586 return (4);
1587 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1588 return (5);
1589
1590 return (0);
1591 }
1592
1593 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1594 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1595 int rs_num, int depth)
1596 {
1597 struct pfctl_rule *r;
1598 int error, len = strlen(path);
1599 int brace = 0;
1600
1601 pf->anchor = rs->anchor;
1602
1603 if (path[0])
1604 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1605 else
1606 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1607
1608 if (depth) {
1609 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1610 brace++;
1611 if (pf->opts & PF_OPT_VERBOSE)
1612 printf(" {\n");
1613 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1614 (error = pfctl_ruleset_trans(pf,
1615 path, rs->anchor))) {
1616 printf("pfctl_load_rulesets: "
1617 "pfctl_ruleset_trans %d\n", error);
1618 goto error;
1619 }
1620 } else if (pf->opts & PF_OPT_VERBOSE)
1621 printf("\n");
1622
1623 }
1624
1625 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1626 pfctl_optimize_ruleset(pf, rs);
1627
1628 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1629 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1630
1631 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
1632 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
1633 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
1634 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
1635
1636 if ((error = pfctl_load_rule(pf, path, r, depth)))
1637 goto error;
1638 if (r->anchor) {
1639 if ((error = pfctl_load_ruleset(pf, path,
1640 &r->anchor->ruleset, rs_num, depth + 1)))
1641 goto error;
1642 } else if (pf->opts & PF_OPT_VERBOSE)
1643 printf("\n");
1644 free(r);
1645 }
1646 if (brace && pf->opts & PF_OPT_VERBOSE) {
1647 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1648 printf("}\n");
1649 }
1650 path[len] = '\0';
1651 return (0);
1652
1653 error:
1654 path[len] = '\0';
1655 return (error);
1656
1657 }
1658
1659 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)1660 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
1661 {
1662 u_int8_t rs_num = pf_get_ruleset_number(r->action);
1663 char *name;
1664 u_int32_t ticket;
1665 char anchor[PF_ANCHOR_NAME_SIZE];
1666 int len = strlen(path);
1667
1668 /* set up anchor before adding to path for anchor_call */
1669 if ((pf->opts & PF_OPT_NOACTION) == 0)
1670 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
1671 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1672 errx(1, "pfctl_load_rule: strlcpy");
1673
1674 if (r->anchor) {
1675 if (r->anchor->match) {
1676 if (path[0])
1677 snprintf(&path[len], MAXPATHLEN - len,
1678 "/%s", r->anchor->name);
1679 else
1680 snprintf(&path[len], MAXPATHLEN - len,
1681 "%s", r->anchor->name);
1682 name = r->anchor->name;
1683 } else
1684 name = r->anchor->path;
1685 } else
1686 name = "";
1687
1688 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1689 if (pfctl_add_pool(pf, &r->rpool, r->af))
1690 return (1);
1691 if (pfctl_add_rule(pf->dev, r, anchor, name, ticket,
1692 pf->paddr.ticket))
1693 err(1, "DIOCADDRULENV");
1694 }
1695
1696 if (pf->opts & PF_OPT_VERBOSE) {
1697 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1698 print_rule(r, name,
1699 pf->opts & PF_OPT_VERBOSE2,
1700 pf->opts & PF_OPT_NUMERIC);
1701 }
1702 path[len] = '\0';
1703 pfctl_clear_pool(&r->rpool);
1704 return (0);
1705 }
1706
1707 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)1708 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
1709 {
1710 if (altqsupport &&
1711 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
1712 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
1713 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1714 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
1715 if (errno == ENXIO)
1716 errx(1, "qtype not configured");
1717 else if (errno == ENODEV)
1718 errx(1, "%s: driver does not support "
1719 "altq", a->ifname);
1720 else
1721 err(1, "DIOCADDALTQ");
1722 }
1723 }
1724 pfaltq_store(&pf->paltq->altq);
1725 }
1726 return (0);
1727 }
1728
1729 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)1730 pfctl_rules(int dev, char *filename, int opts, int optimize,
1731 char *anchorname, struct pfr_buffer *trans)
1732 {
1733 #define ERR(x) do { warn(x); goto _error; } while(0)
1734 #define ERRX(x) do { warnx(x); goto _error; } while(0)
1735
1736 struct pfr_buffer *t, buf;
1737 struct pfioc_altq pa;
1738 struct pfctl pf;
1739 struct pfctl_ruleset *rs;
1740 struct pfr_table trs;
1741 char *path;
1742 int osize;
1743
1744 RB_INIT(&pf_anchors);
1745 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
1746 pf_init_ruleset(&pf_main_anchor.ruleset);
1747 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
1748 if (trans == NULL) {
1749 bzero(&buf, sizeof(buf));
1750 buf.pfrb_type = PFRB_TRANS;
1751 t = &buf;
1752 osize = 0;
1753 } else {
1754 t = trans;
1755 osize = t->pfrb_size;
1756 }
1757
1758 memset(&pa, 0, sizeof(pa));
1759 pa.version = PFIOC_ALTQ_VERSION;
1760 memset(&pf, 0, sizeof(pf));
1761 memset(&trs, 0, sizeof(trs));
1762 if ((path = calloc(1, MAXPATHLEN)) == NULL)
1763 ERRX("pfctl_rules: calloc");
1764 if (strlcpy(trs.pfrt_anchor, anchorname,
1765 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
1766 ERRX("pfctl_rules: strlcpy");
1767 pf.dev = dev;
1768 pf.opts = opts;
1769 pf.optimize = optimize;
1770 pf.loadopt = loadopt;
1771
1772 /* non-brace anchor, create without resolving the path */
1773 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
1774 ERRX("pfctl_rules: calloc");
1775 rs = &pf.anchor->ruleset;
1776 pf_init_ruleset(rs);
1777 rs->anchor = pf.anchor;
1778 if (strlcpy(pf.anchor->path, anchorname,
1779 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
1780 errx(1, "pfctl_add_rule: strlcpy");
1781 if (strlcpy(pf.anchor->name, anchorname,
1782 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
1783 errx(1, "pfctl_add_rule: strlcpy");
1784
1785
1786 pf.astack[0] = pf.anchor;
1787 pf.asd = 0;
1788 if (anchorname[0])
1789 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
1790 pf.paltq = &pa;
1791 pf.trans = t;
1792 pfctl_init_options(&pf);
1793
1794 if ((opts & PF_OPT_NOACTION) == 0) {
1795 /*
1796 * XXX For the time being we need to open transactions for
1797 * the main ruleset before parsing, because tables are still
1798 * loaded at parse time.
1799 */
1800 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor))
1801 ERRX("pfctl_rules");
1802 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
1803 pa.ticket =
1804 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
1805 if (pf.loadopt & PFCTL_FLAG_TABLE)
1806 pf.astack[0]->ruleset.tticket =
1807 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
1808 }
1809
1810 if (parse_config(filename, &pf) < 0) {
1811 if ((opts & PF_OPT_NOACTION) == 0)
1812 ERRX("Syntax error in config file: "
1813 "pf rules not loaded");
1814 else
1815 goto _error;
1816 }
1817 if (loadopt & PFCTL_FLAG_OPTION)
1818 pfctl_adjust_skip_ifaces(&pf);
1819
1820 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
1821 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
1822 (pf.loadopt & PFCTL_FLAG_NAT &&
1823 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
1824 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
1825 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
1826 (pf.loadopt & PFCTL_FLAG_FILTER &&
1827 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
1828 if ((opts & PF_OPT_NOACTION) == 0)
1829 ERRX("Unable to load rules into kernel");
1830 else
1831 goto _error;
1832 }
1833
1834 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
1835 if (check_commit_altq(dev, opts) != 0)
1836 ERRX("errors in altq config");
1837
1838 /* process "load anchor" directives */
1839 if (!anchorname[0])
1840 if (pfctl_load_anchors(dev, &pf, t) == -1)
1841 ERRX("load anchors");
1842
1843 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
1844 if (!anchorname[0])
1845 if (pfctl_load_options(&pf))
1846 goto _error;
1847 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
1848 ERR("DIOCXCOMMIT");
1849 }
1850 free(path);
1851 return (0);
1852
1853 _error:
1854 if (trans == NULL) { /* main ruleset */
1855 if ((opts & PF_OPT_NOACTION) == 0)
1856 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
1857 err(1, "DIOCXROLLBACK");
1858 exit(1);
1859 } else { /* sub ruleset */
1860 free(path);
1861 return (-1);
1862 }
1863
1864 #undef ERR
1865 #undef ERRX
1866 }
1867
1868 FILE *
pfctl_fopen(const char * name,const char * mode)1869 pfctl_fopen(const char *name, const char *mode)
1870 {
1871 struct stat st;
1872 FILE *fp;
1873
1874 fp = fopen(name, mode);
1875 if (fp == NULL)
1876 return (NULL);
1877 if (fstat(fileno(fp), &st)) {
1878 fclose(fp);
1879 return (NULL);
1880 }
1881 if (S_ISDIR(st.st_mode)) {
1882 fclose(fp);
1883 errno = EISDIR;
1884 return (NULL);
1885 }
1886 return (fp);
1887 }
1888
1889 void
pfctl_init_options(struct pfctl * pf)1890 pfctl_init_options(struct pfctl *pf)
1891 {
1892
1893 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1894 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
1895 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1896 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1897 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
1898 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1899 pf->timeout[PFTM_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1900 pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
1901 pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1902 pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1903 pf->timeout[PFTM_SCTP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1904 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
1905 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
1906 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
1907 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
1908 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
1909 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
1910 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
1911 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
1912 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
1913 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
1914 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
1915 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
1916 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
1917 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
1918
1919 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
1920 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
1921 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
1922 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
1923
1924 pf->debug = PF_DEBUG_URGENT;
1925
1926 pf->syncookies = false;
1927 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
1928 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
1929 }
1930
1931 int
pfctl_load_options(struct pfctl * pf)1932 pfctl_load_options(struct pfctl *pf)
1933 {
1934 int i, error = 0;
1935
1936 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1937 return (0);
1938
1939 /* load limits */
1940 for (i = 0; i < PF_LIMIT_MAX; i++) {
1941 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
1942 continue;
1943 if (pfctl_load_limit(pf, i, pf->limit[i]))
1944 error = 1;
1945 }
1946
1947 /*
1948 * If we've set the limit, but haven't explicitly set adaptive
1949 * timeouts, do it now with a start of 60% and end of 120%.
1950 */
1951 if (pf->limit_set[PF_LIMIT_STATES] &&
1952 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
1953 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
1954 pf->timeout[PFTM_ADAPTIVE_START] =
1955 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
1956 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
1957 pf->timeout[PFTM_ADAPTIVE_END] =
1958 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
1959 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
1960 }
1961
1962 /* load timeouts */
1963 for (i = 0; i < PFTM_MAX; i++) {
1964 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
1965 continue;
1966 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
1967 error = 1;
1968 }
1969
1970 /* load debug */
1971 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
1972 if (pfctl_load_debug(pf, pf->debug))
1973 error = 1;
1974
1975 /* load logif */
1976 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
1977 if (pfctl_load_logif(pf, pf->ifname))
1978 error = 1;
1979
1980 /* load hostid */
1981 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
1982 if (pfctl_load_hostid(pf, pf->hostid))
1983 error = 1;
1984
1985 /* load keepcounters */
1986 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
1987 error = 1;
1988
1989 /* load syncookies settings */
1990 if (pfctl_load_syncookies(pf, pf->syncookies))
1991 error = 1;
1992
1993 return (error);
1994 }
1995
1996 int
pfctl_set_limit(struct pfctl * pf,const char * opt,unsigned int limit)1997 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
1998 {
1999 int i;
2000
2001
2002 for (i = 0; pf_limits[i].name; i++) {
2003 if (strcasecmp(opt, pf_limits[i].name) == 0) {
2004 pf->limit[pf_limits[i].index] = limit;
2005 pf->limit_set[pf_limits[i].index] = 1;
2006 break;
2007 }
2008 }
2009 if (pf_limits[i].name == NULL) {
2010 warnx("Bad pool name.");
2011 return (1);
2012 }
2013
2014 if (pf->opts & PF_OPT_VERBOSE)
2015 printf("set limit %s %d\n", opt, limit);
2016
2017 return (0);
2018 }
2019
2020 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)2021 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
2022 {
2023 struct pfioc_limit pl;
2024
2025 memset(&pl, 0, sizeof(pl));
2026 pl.index = index;
2027 pl.limit = limit;
2028 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
2029 if (errno == EBUSY)
2030 warnx("Current pool size exceeds requested hard limit");
2031 else
2032 warnx("DIOCSETLIMIT");
2033 return (1);
2034 }
2035 return (0);
2036 }
2037
2038 int
pfctl_set_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)2039 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
2040 {
2041 int i;
2042
2043 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2044 return (0);
2045
2046 for (i = 0; pf_timeouts[i].name; i++) {
2047 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2048 pf->timeout[pf_timeouts[i].timeout] = seconds;
2049 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2050 break;
2051 }
2052 }
2053
2054 if (pf_timeouts[i].name == NULL) {
2055 warnx("Bad timeout name.");
2056 return (1);
2057 }
2058
2059
2060 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2061 printf("set timeout %s %d\n", opt, seconds);
2062
2063 return (0);
2064 }
2065
2066 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2067 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2068 {
2069 struct pfioc_tm pt;
2070
2071 memset(&pt, 0, sizeof(pt));
2072 pt.timeout = timeout;
2073 pt.seconds = seconds;
2074 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
2075 warnx("DIOCSETTIMEOUT");
2076 return (1);
2077 }
2078 return (0);
2079 }
2080
2081 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2082 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2083 {
2084 const struct pf_hint *hint;
2085 int i, r;
2086
2087 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2088 return (0);
2089
2090 for (i = 0; pf_hints[i].name; i++)
2091 if (strcasecmp(opt, pf_hints[i].name) == 0)
2092 break;
2093
2094 hint = pf_hints[i].hint;
2095 if (hint == NULL) {
2096 warnx("invalid state timeouts optimization");
2097 return (1);
2098 }
2099
2100 for (i = 0; hint[i].name; i++)
2101 if ((r = pfctl_set_timeout(pf, hint[i].name,
2102 hint[i].timeout, 1)))
2103 return (r);
2104
2105 if (pf->opts & PF_OPT_VERBOSE)
2106 printf("set optimization %s\n", opt);
2107
2108 return (0);
2109 }
2110
2111 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2112 pfctl_set_logif(struct pfctl *pf, char *ifname)
2113 {
2114
2115 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2116 return (0);
2117
2118 if (!strcmp(ifname, "none")) {
2119 free(pf->ifname);
2120 pf->ifname = NULL;
2121 } else {
2122 pf->ifname = strdup(ifname);
2123 if (!pf->ifname)
2124 errx(1, "pfctl_set_logif: strdup");
2125 }
2126 pf->ifname_set = 1;
2127
2128 if (pf->opts & PF_OPT_VERBOSE)
2129 printf("set loginterface %s\n", ifname);
2130
2131 return (0);
2132 }
2133
2134 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2135 pfctl_load_logif(struct pfctl *pf, char *ifname)
2136 {
2137 struct pfioc_if pi;
2138
2139 memset(&pi, 0, sizeof(pi));
2140 if (ifname && strlcpy(pi.ifname, ifname,
2141 sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
2142 warnx("pfctl_load_logif: strlcpy");
2143 return (1);
2144 }
2145 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
2146 warnx("DIOCSETSTATUSIF");
2147 return (1);
2148 }
2149 return (0);
2150 }
2151
2152 int
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2153 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2154 {
2155 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2156 return (0);
2157
2158 HTONL(hostid);
2159
2160 pf->hostid = hostid;
2161 pf->hostid_set = 1;
2162
2163 if (pf->opts & PF_OPT_VERBOSE)
2164 printf("set hostid 0x%08x\n", ntohl(hostid));
2165
2166 return (0);
2167 }
2168
2169 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2170 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2171 {
2172 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2173 warnx("DIOCSETHOSTID");
2174 return (1);
2175 }
2176 return (0);
2177 }
2178
2179 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2180 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2181 {
2182 struct pfctl_syncookies cookies;
2183
2184 bzero(&cookies, sizeof(cookies));
2185
2186 cookies.mode = val;
2187 cookies.lowwater = pf->syncookieswat[0];
2188 cookies.highwater = pf->syncookieswat[1];
2189
2190 if (pfctl_set_syncookies(dev, &cookies)) {
2191 warnx("DIOCSETSYNCOOKIES");
2192 return (1);
2193 }
2194 return (0);
2195 }
2196
2197 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2198 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2199 {
2200 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2201 warnx("syncookies start/end only apply to adaptive");
2202 return (1);
2203 }
2204 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2205 if (!w->hi)
2206 w->hi = PF_SYNCOOKIES_HIWATPCT;
2207 if (!w->lo)
2208 w->lo = w->hi / 2;
2209 if (w->lo >= w->hi) {
2210 warnx("start must be higher than end");
2211 return (1);
2212 }
2213 pf->syncookieswat[0] = w->lo;
2214 pf->syncookieswat[1] = w->hi;
2215 pf->syncookieswat_set = 1;
2216 }
2217
2218 if (pf->opts & PF_OPT_VERBOSE) {
2219 if (val == PF_SYNCOOKIES_NEVER)
2220 printf("set syncookies never\n");
2221 else if (val == PF_SYNCOOKIES_ALWAYS)
2222 printf("set syncookies always\n");
2223 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2224 if (pf->syncookieswat_set)
2225 printf("set syncookies adaptive (start %u%%, "
2226 "end %u%%)\n", pf->syncookieswat[1],
2227 pf->syncookieswat[0]);
2228 else
2229 printf("set syncookies adaptive\n");
2230 } else { /* cannot happen */
2231 warnx("king bula ate all syncookies");
2232 return (1);
2233 }
2234 }
2235
2236 pf->syncookies = val;
2237 return (0);
2238 }
2239
2240 int
pfctl_set_debug(struct pfctl * pf,char * d)2241 pfctl_set_debug(struct pfctl *pf, char *d)
2242 {
2243 u_int32_t level;
2244
2245 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2246 return (0);
2247
2248 if (!strcmp(d, "none"))
2249 pf->debug = PF_DEBUG_NONE;
2250 else if (!strcmp(d, "urgent"))
2251 pf->debug = PF_DEBUG_URGENT;
2252 else if (!strcmp(d, "misc"))
2253 pf->debug = PF_DEBUG_MISC;
2254 else if (!strcmp(d, "loud"))
2255 pf->debug = PF_DEBUG_NOISY;
2256 else {
2257 warnx("unknown debug level \"%s\"", d);
2258 return (-1);
2259 }
2260
2261 pf->debug_set = 1;
2262 level = pf->debug;
2263
2264 if ((pf->opts & PF_OPT_NOACTION) == 0)
2265 if (ioctl(dev, DIOCSETDEBUG, &level))
2266 err(1, "DIOCSETDEBUG");
2267
2268 if (pf->opts & PF_OPT_VERBOSE)
2269 printf("set debug %s\n", d);
2270
2271 return (0);
2272 }
2273
2274 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2275 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2276 {
2277 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
2278 warnx("DIOCSETDEBUG");
2279 return (1);
2280 }
2281 return (0);
2282 }
2283
2284 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2285 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2286 {
2287 struct pfioc_iface pi;
2288 struct node_host *h = NULL, *n = NULL;
2289
2290 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2291 return (0);
2292
2293 bzero(&pi, sizeof(pi));
2294
2295 pi.pfiio_flags = flags;
2296
2297 /* Make sure our cache matches the kernel. If we set or clear the flag
2298 * for a group this applies to all members. */
2299 h = ifa_grouplookup(ifname, 0);
2300 for (n = h; n != NULL; n = n->next)
2301 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2302
2303 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2304 sizeof(pi.pfiio_name))
2305 errx(1, "pfctl_set_interface_flags: strlcpy");
2306
2307 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2308 if (how == 0) {
2309 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2310 err(1, "DIOCCLRIFFLAG");
2311 } else {
2312 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2313 err(1, "DIOCSETIFFLAG");
2314 pfctl_check_skip_ifaces(ifname);
2315 }
2316 }
2317 return (0);
2318 }
2319
2320 void
pfctl_debug(int dev,u_int32_t level,int opts)2321 pfctl_debug(int dev, u_int32_t level, int opts)
2322 {
2323 if (ioctl(dev, DIOCSETDEBUG, &level))
2324 err(1, "DIOCSETDEBUG");
2325 if ((opts & PF_OPT_QUIET) == 0) {
2326 fprintf(stderr, "debug level set to '");
2327 switch (level) {
2328 case PF_DEBUG_NONE:
2329 fprintf(stderr, "none");
2330 break;
2331 case PF_DEBUG_URGENT:
2332 fprintf(stderr, "urgent");
2333 break;
2334 case PF_DEBUG_MISC:
2335 fprintf(stderr, "misc");
2336 break;
2337 case PF_DEBUG_NOISY:
2338 fprintf(stderr, "loud");
2339 break;
2340 default:
2341 fprintf(stderr, "<invalid>");
2342 break;
2343 }
2344 fprintf(stderr, "'\n");
2345 }
2346 }
2347
2348 int
pfctl_test_altqsupport(int dev,int opts)2349 pfctl_test_altqsupport(int dev, int opts)
2350 {
2351 struct pfioc_altq pa;
2352
2353 pa.version = PFIOC_ALTQ_VERSION;
2354 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2355 if (errno == ENODEV) {
2356 if (opts & PF_OPT_VERBOSE)
2357 fprintf(stderr, "No ALTQ support in kernel\n"
2358 "ALTQ related functions disabled\n");
2359 return (0);
2360 } else
2361 err(1, "DIOCGETALTQS");
2362 }
2363 return (1);
2364 }
2365
2366 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2367 pfctl_show_anchors(int dev, int opts, char *anchorname)
2368 {
2369 struct pfioc_ruleset pr;
2370 u_int32_t mnr, nr;
2371
2372 memset(&pr, 0, sizeof(pr));
2373 memcpy(pr.path, anchorname, sizeof(pr.path));
2374 if (ioctl(dev, DIOCGETRULESETS, &pr)) {
2375 if (errno == EINVAL)
2376 fprintf(stderr, "Anchor '%s' not found.\n",
2377 anchorname);
2378 else
2379 err(1, "DIOCGETRULESETS");
2380 return (-1);
2381 }
2382 mnr = pr.nr;
2383 for (nr = 0; nr < mnr; ++nr) {
2384 char sub[MAXPATHLEN];
2385
2386 pr.nr = nr;
2387 if (ioctl(dev, DIOCGETRULESET, &pr))
2388 err(1, "DIOCGETRULESET");
2389 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2390 continue;
2391 sub[0] = 0;
2392 if (pr.path[0]) {
2393 strlcat(sub, pr.path, sizeof(sub));
2394 strlcat(sub, "/", sizeof(sub));
2395 }
2396 strlcat(sub, pr.name, sizeof(sub));
2397 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2398 printf(" %s\n", sub);
2399 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2400 return (-1);
2401 }
2402 return (0);
2403 }
2404
2405 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2406 pfctl_lookup_option(char *cmd, const char * const *list)
2407 {
2408 if (cmd != NULL && *cmd)
2409 for (; *list; list++)
2410 if (!strncmp(cmd, *list, strlen(cmd)))
2411 return (*list);
2412 return (NULL);
2413 }
2414
2415 int
main(int argc,char * argv[])2416 main(int argc, char *argv[])
2417 {
2418 int error = 0;
2419 int ch;
2420 int mode = O_RDONLY;
2421 int opts = 0;
2422 int optimize = PF_OPTIMIZE_BASIC;
2423 char anchorname[MAXPATHLEN];
2424 char *path;
2425
2426 if (argc < 2)
2427 usage();
2428
2429 while ((ch = getopt(argc, argv,
2430 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2431 switch (ch) {
2432 case 'a':
2433 anchoropt = optarg;
2434 break;
2435 case 'd':
2436 opts |= PF_OPT_DISABLE;
2437 mode = O_RDWR;
2438 break;
2439 case 'D':
2440 if (pfctl_cmdline_symset(optarg) < 0)
2441 warnx("could not parse macro definition %s",
2442 optarg);
2443 break;
2444 case 'e':
2445 opts |= PF_OPT_ENABLE;
2446 mode = O_RDWR;
2447 break;
2448 case 'q':
2449 opts |= PF_OPT_QUIET;
2450 break;
2451 case 'F':
2452 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2453 if (clearopt == NULL) {
2454 warnx("Unknown flush modifier '%s'", optarg);
2455 usage();
2456 }
2457 mode = O_RDWR;
2458 break;
2459 case 'i':
2460 ifaceopt = optarg;
2461 break;
2462 case 'k':
2463 if (state_killers >= 2) {
2464 warnx("can only specify -k twice");
2465 usage();
2466 /* NOTREACHED */
2467 }
2468 state_kill[state_killers++] = optarg;
2469 mode = O_RDWR;
2470 break;
2471 case 'K':
2472 if (src_node_killers >= 2) {
2473 warnx("can only specify -K twice");
2474 usage();
2475 /* NOTREACHED */
2476 }
2477 src_node_kill[src_node_killers++] = optarg;
2478 mode = O_RDWR;
2479 break;
2480 case 'm':
2481 opts |= PF_OPT_MERGE;
2482 break;
2483 case 'M':
2484 opts |= PF_OPT_KILLMATCH;
2485 break;
2486 case 'n':
2487 opts |= PF_OPT_NOACTION;
2488 break;
2489 case 'N':
2490 loadopt |= PFCTL_FLAG_NAT;
2491 break;
2492 case 'r':
2493 opts |= PF_OPT_USEDNS;
2494 break;
2495 case 'f':
2496 rulesopt = optarg;
2497 mode = O_RDWR;
2498 break;
2499 case 'g':
2500 opts |= PF_OPT_DEBUG;
2501 break;
2502 case 'A':
2503 loadopt |= PFCTL_FLAG_ALTQ;
2504 break;
2505 case 'R':
2506 loadopt |= PFCTL_FLAG_FILTER;
2507 break;
2508 case 'o':
2509 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2510 if (optiopt == NULL) {
2511 warnx("Unknown optimization '%s'", optarg);
2512 usage();
2513 }
2514 opts |= PF_OPT_OPTIMIZE;
2515 break;
2516 case 'O':
2517 loadopt |= PFCTL_FLAG_OPTION;
2518 break;
2519 case 'p':
2520 pf_device = optarg;
2521 break;
2522 case 'P':
2523 opts |= PF_OPT_NUMERIC;
2524 break;
2525 case 's':
2526 showopt = pfctl_lookup_option(optarg, showopt_list);
2527 if (showopt == NULL) {
2528 warnx("Unknown show modifier '%s'", optarg);
2529 usage();
2530 }
2531 break;
2532 case 't':
2533 tableopt = optarg;
2534 break;
2535 case 'T':
2536 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2537 if (tblcmdopt == NULL) {
2538 warnx("Unknown table command '%s'", optarg);
2539 usage();
2540 }
2541 break;
2542 case 'v':
2543 if (opts & PF_OPT_VERBOSE)
2544 opts |= PF_OPT_VERBOSE2;
2545 opts |= PF_OPT_VERBOSE;
2546 break;
2547 case 'x':
2548 debugopt = pfctl_lookup_option(optarg, debugopt_list);
2549 if (debugopt == NULL) {
2550 warnx("Unknown debug level '%s'", optarg);
2551 usage();
2552 }
2553 mode = O_RDWR;
2554 break;
2555 case 'z':
2556 opts |= PF_OPT_CLRRULECTRS;
2557 mode = O_RDWR;
2558 break;
2559 case 'h':
2560 /* FALLTHROUGH */
2561 default:
2562 usage();
2563 /* NOTREACHED */
2564 }
2565 }
2566
2567 if (tblcmdopt != NULL) {
2568 argc -= optind;
2569 argv += optind;
2570 ch = *tblcmdopt;
2571 if (ch == 'l') {
2572 loadopt |= PFCTL_FLAG_TABLE;
2573 tblcmdopt = NULL;
2574 } else
2575 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
2576 } else if (argc != optind) {
2577 warnx("unknown command line argument: %s ...", argv[optind]);
2578 usage();
2579 /* NOTREACHED */
2580 }
2581 if (loadopt == 0)
2582 loadopt = ~0;
2583
2584 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2585 errx(1, "pfctl: calloc");
2586 memset(anchorname, 0, sizeof(anchorname));
2587 if (anchoropt != NULL) {
2588 int len = strlen(anchoropt);
2589
2590 if (anchoropt[len - 1] == '*') {
2591 if (len >= 2 && anchoropt[len - 2] == '/')
2592 anchoropt[len - 2] = '\0';
2593 else
2594 anchoropt[len - 1] = '\0';
2595 opts |= PF_OPT_RECURSE;
2596 }
2597 if (strlcpy(anchorname, anchoropt,
2598 sizeof(anchorname)) >= sizeof(anchorname))
2599 errx(1, "anchor name '%s' too long",
2600 anchoropt);
2601 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE;
2602 }
2603
2604 if ((opts & PF_OPT_NOACTION) == 0) {
2605 dev = open(pf_device, mode);
2606 if (dev == -1)
2607 err(1, "%s", pf_device);
2608 altqsupport = pfctl_test_altqsupport(dev, opts);
2609 } else {
2610 dev = open(pf_device, O_RDONLY);
2611 if (dev >= 0)
2612 opts |= PF_OPT_DUMMYACTION;
2613 /* turn off options */
2614 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
2615 clearopt = showopt = debugopt = NULL;
2616 #if !defined(ENABLE_ALTQ)
2617 altqsupport = 0;
2618 #else
2619 altqsupport = 1;
2620 #endif
2621 }
2622
2623 if (opts & PF_OPT_DISABLE)
2624 if (pfctl_disable(dev, opts))
2625 error = 1;
2626
2627 if (showopt != NULL) {
2628 switch (*showopt) {
2629 case 'A':
2630 pfctl_show_anchors(dev, opts, anchorname);
2631 break;
2632 case 'r':
2633 pfctl_load_fingerprints(dev, opts);
2634 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
2635 anchorname, 0, 0);
2636 break;
2637 case 'l':
2638 pfctl_load_fingerprints(dev, opts);
2639 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
2640 anchorname, 0, 0);
2641 break;
2642 case 'n':
2643 pfctl_load_fingerprints(dev, opts);
2644 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
2645 break;
2646 case 'q':
2647 pfctl_show_altq(dev, ifaceopt, opts,
2648 opts & PF_OPT_VERBOSE2);
2649 break;
2650 case 's':
2651 pfctl_show_states(dev, ifaceopt, opts);
2652 break;
2653 case 'S':
2654 pfctl_show_src_nodes(dev, opts);
2655 break;
2656 case 'i':
2657 pfctl_show_status(dev, opts);
2658 break;
2659 case 'R':
2660 error = pfctl_show_running(dev);
2661 break;
2662 case 't':
2663 pfctl_show_timeouts(dev, opts);
2664 break;
2665 case 'm':
2666 pfctl_show_limits(dev, opts);
2667 break;
2668 case 'a':
2669 opts |= PF_OPT_SHOWALL;
2670 pfctl_load_fingerprints(dev, opts);
2671
2672 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
2673 pfctl_show_rules(dev, path, opts, 0, anchorname, 0, 0);
2674 pfctl_show_altq(dev, ifaceopt, opts, 0);
2675 pfctl_show_states(dev, ifaceopt, opts);
2676 pfctl_show_src_nodes(dev, opts);
2677 pfctl_show_status(dev, opts);
2678 pfctl_show_rules(dev, path, opts, 1, anchorname, 0, 0);
2679 pfctl_show_timeouts(dev, opts);
2680 pfctl_show_limits(dev, opts);
2681 pfctl_show_tables(anchorname, opts);
2682 pfctl_show_fingerprints(opts);
2683 break;
2684 case 'T':
2685 pfctl_show_tables(anchorname, opts);
2686 break;
2687 case 'o':
2688 pfctl_load_fingerprints(dev, opts);
2689 pfctl_show_fingerprints(opts);
2690 break;
2691 case 'I':
2692 pfctl_show_ifaces(ifaceopt, opts);
2693 break;
2694 }
2695 }
2696
2697 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL)
2698 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
2699 anchorname, 0, 0);
2700
2701 if (clearopt != NULL) {
2702 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2703 errx(1, "anchor names beginning with '_' cannot "
2704 "be modified from the command line");
2705
2706 switch (*clearopt) {
2707 case 'r':
2708 pfctl_flush_rules(dev, opts, anchorname);
2709 break;
2710 case 'n':
2711 pfctl_flush_nat(dev, opts, anchorname);
2712 break;
2713 case 'q':
2714 pfctl_clear_altq(dev, opts);
2715 break;
2716 case 's':
2717 pfctl_clear_iface_states(dev, ifaceopt, opts);
2718 break;
2719 case 'S':
2720 pfctl_clear_src_nodes(dev, opts);
2721 break;
2722 case 'i':
2723 pfctl_clear_stats(dev, opts);
2724 break;
2725 case 'a':
2726 pfctl_flush_rules(dev, opts, anchorname);
2727 pfctl_flush_nat(dev, opts, anchorname);
2728 pfctl_clear_tables(anchorname, opts);
2729 if (!*anchorname) {
2730 pfctl_clear_altq(dev, opts);
2731 pfctl_clear_iface_states(dev, ifaceopt, opts);
2732 pfctl_clear_src_nodes(dev, opts);
2733 pfctl_clear_stats(dev, opts);
2734 pfctl_clear_fingerprints(dev, opts);
2735 pfctl_clear_interface_flags(dev, opts);
2736 }
2737 break;
2738 case 'o':
2739 pfctl_clear_fingerprints(dev, opts);
2740 break;
2741 case 'T':
2742 pfctl_clear_tables(anchorname, opts);
2743 break;
2744 }
2745 }
2746 if (state_killers) {
2747 if (!strcmp(state_kill[0], "label"))
2748 pfctl_label_kill_states(dev, ifaceopt, opts);
2749 else if (!strcmp(state_kill[0], "id"))
2750 pfctl_id_kill_states(dev, ifaceopt, opts);
2751 else if (!strcmp(state_kill[0], "gateway"))
2752 pfctl_gateway_kill_states(dev, ifaceopt, opts);
2753 else
2754 pfctl_net_kill_states(dev, ifaceopt, opts);
2755 }
2756
2757 if (src_node_killers)
2758 pfctl_kill_src_nodes(dev, ifaceopt, opts);
2759
2760 if (tblcmdopt != NULL) {
2761 error = pfctl_command_tables(argc, argv, tableopt,
2762 tblcmdopt, rulesopt, anchorname, opts);
2763 rulesopt = NULL;
2764 }
2765 if (optiopt != NULL) {
2766 switch (*optiopt) {
2767 case 'n':
2768 optimize = 0;
2769 break;
2770 case 'b':
2771 optimize |= PF_OPTIMIZE_BASIC;
2772 break;
2773 case 'o':
2774 case 'p':
2775 optimize |= PF_OPTIMIZE_PROFILE;
2776 break;
2777 }
2778 }
2779
2780 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
2781 !anchorname[0] && !(opts & PF_OPT_NOACTION))
2782 if (pfctl_get_skip_ifaces())
2783 error = 1;
2784
2785 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
2786 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
2787 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
2788 error = 1;
2789
2790 if (rulesopt != NULL) {
2791 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2792 errx(1, "anchor names beginning with '_' cannot "
2793 "be modified from the command line");
2794 if (pfctl_rules(dev, rulesopt, opts, optimize,
2795 anchorname, NULL))
2796 error = 1;
2797 else if (!(opts & PF_OPT_NOACTION) &&
2798 (loadopt & PFCTL_FLAG_TABLE))
2799 warn_namespace_collision(NULL);
2800 }
2801
2802 if (opts & PF_OPT_ENABLE)
2803 if (pfctl_enable(dev, opts))
2804 error = 1;
2805
2806 if (debugopt != NULL) {
2807 switch (*debugopt) {
2808 case 'n':
2809 pfctl_debug(dev, PF_DEBUG_NONE, opts);
2810 break;
2811 case 'u':
2812 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
2813 break;
2814 case 'm':
2815 pfctl_debug(dev, PF_DEBUG_MISC, opts);
2816 break;
2817 case 'l':
2818 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
2819 break;
2820 }
2821 }
2822
2823 exit(error);
2824 }
2825