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/socket.h>
42 #include <sys/stat.h>
43 #include <sys/endian.h>
44
45 #include <net/if.h>
46 #include <netinet/in.h>
47 #include <net/pfvar.h>
48 #include <arpa/inet.h>
49 #include <net/altq/altq.h>
50
51 #include <err.h>
52 #include <errno.h>
53 #include <fcntl.h>
54 #include <libpfctl.h>
55 #include <limits.h>
56 #include <netdb.h>
57 #include <stdint.h>
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <unistd.h>
62
63 #include "pfctl_parser.h"
64 #include "pfctl.h"
65
66 void usage(void);
67 int pfctl_enable(int, int);
68 int pfctl_disable(int, int);
69 int pfctl_clear_stats(struct pfctl_handle *, int);
70 int pfctl_get_skip_ifaces(void);
71 int pfctl_check_skip_ifaces(char *);
72 int pfctl_adjust_skip_ifaces(struct pfctl *);
73 int pfctl_clear_interface_flags(int, int);
74 int pfctl_flush_eth_rules(int, int, char *);
75 int pfctl_flush_rules(int, int, char *);
76 int pfctl_flush_nat(int, int, char *);
77 int pfctl_clear_altq(int, int);
78 int pfctl_clear_src_nodes(int, int);
79 int pfctl_clear_iface_states(int, const char *, int);
80 void pfctl_addrprefix(char *, struct pf_addr *);
81 int pfctl_kill_src_nodes(int, const char *, int);
82 int pfctl_net_kill_states(int, const char *, int);
83 int pfctl_gateway_kill_states(int, const char *, int);
84 int pfctl_label_kill_states(int, const char *, int);
85 int pfctl_id_kill_states(int, const char *, int);
86 void pfctl_init_options(struct pfctl *);
87 int pfctl_load_options(struct pfctl *);
88 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
89 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
90 int pfctl_load_debug(struct pfctl *, unsigned int);
91 int pfctl_load_logif(struct pfctl *, char *);
92 int pfctl_load_hostid(struct pfctl *, u_int32_t);
93 int pfctl_load_reassembly(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 char *);
97 void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int);
98 void pfctl_print_rule_counters(struct pfctl_rule *, int);
99 int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int, 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, 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_show_eth_anchors(int, int, char *);
112 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool);
113 int pfctl_eth_ruleset_trans(struct pfctl *, char *,
114 struct pfctl_eth_anchor *);
115 int pfctl_load_eth_ruleset(struct pfctl *, char *,
116 struct pfctl_eth_ruleset *, int);
117 int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *,
118 int);
119 int pfctl_load_ruleset(struct pfctl *, char *,
120 struct pfctl_ruleset *, int, int);
121 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
122 const char *pfctl_lookup_option(char *, const char * const *);
123
124 static struct pfctl_anchor_global pf_anchors;
125 struct pfctl_anchor pf_main_anchor;
126 struct pfctl_eth_anchor pf_eth_main_anchor;
127 static struct pfr_buffer skip_b;
128
129 static const char *clearopt;
130 static char *rulesopt;
131 static const char *showopt;
132 static const char *debugopt;
133 static char *anchoropt;
134 static const char *optiopt = NULL;
135 static const char *pf_device = PF_DEVICE;
136 static char *ifaceopt;
137 static char *tableopt;
138 static const char *tblcmdopt;
139 static int src_node_killers;
140 static char *src_node_kill[2];
141 static int state_killers;
142 static char *state_kill[2];
143 int loadopt;
144 int altqsupport;
145
146 int dev = -1;
147 struct pfctl_handle *pfh = NULL;
148 static int first_title = 1;
149 static int labels = 0;
150
151 #define INDENT(d, o) do { \
152 if (o) { \
153 int i; \
154 for (i=0; i < d; i++) \
155 printf(" "); \
156 } \
157 } while (0); \
158
159
160 static const struct {
161 const char *name;
162 int index;
163 } pf_limits[] = {
164 { "states", PF_LIMIT_STATES },
165 { "src-nodes", PF_LIMIT_SRC_NODES },
166 { "frags", PF_LIMIT_FRAGS },
167 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
168 { NULL, 0 }
169 };
170
171 struct pf_hint {
172 const char *name;
173 int timeout;
174 };
175 static const struct pf_hint pf_hint_normal[] = {
176 { "tcp.first", 2 * 60 },
177 { "tcp.opening", 30 },
178 { "tcp.established", 24 * 60 * 60 },
179 { "tcp.closing", 15 * 60 },
180 { "tcp.finwait", 45 },
181 { "tcp.closed", 90 },
182 { "tcp.tsdiff", 30 },
183 { NULL, 0 }
184 };
185 static const struct pf_hint pf_hint_satellite[] = {
186 { "tcp.first", 3 * 60 },
187 { "tcp.opening", 30 + 5 },
188 { "tcp.established", 24 * 60 * 60 },
189 { "tcp.closing", 15 * 60 + 5 },
190 { "tcp.finwait", 45 + 5 },
191 { "tcp.closed", 90 + 5 },
192 { "tcp.tsdiff", 60 },
193 { NULL, 0 }
194 };
195 static const struct pf_hint pf_hint_conservative[] = {
196 { "tcp.first", 60 * 60 },
197 { "tcp.opening", 15 * 60 },
198 { "tcp.established", 5 * 24 * 60 * 60 },
199 { "tcp.closing", 60 * 60 },
200 { "tcp.finwait", 10 * 60 },
201 { "tcp.closed", 3 * 60 },
202 { "tcp.tsdiff", 60 },
203 { NULL, 0 }
204 };
205 static const struct pf_hint pf_hint_aggressive[] = {
206 { "tcp.first", 30 },
207 { "tcp.opening", 5 },
208 { "tcp.established", 5 * 60 * 60 },
209 { "tcp.closing", 60 },
210 { "tcp.finwait", 30 },
211 { "tcp.closed", 30 },
212 { "tcp.tsdiff", 10 },
213 { NULL, 0 }
214 };
215
216 static const struct {
217 const char *name;
218 const struct pf_hint *hint;
219 } pf_hints[] = {
220 { "normal", pf_hint_normal },
221 { "satellite", pf_hint_satellite },
222 { "high-latency", pf_hint_satellite },
223 { "conservative", pf_hint_conservative },
224 { "aggressive", pf_hint_aggressive },
225 { NULL, NULL }
226 };
227
228 static const char * const clearopt_list[] = {
229 "nat", "queue", "rules", "Sources",
230 "states", "info", "Tables", "osfp", "all",
231 "ethernet", NULL
232 };
233
234 static const char * const showopt_list[] = {
235 "ether", "nat", "queue", "rules", "Anchors", "Sources", "states",
236 "info", "Interfaces", "labels", "timeouts", "memory", "Tables",
237 "osfp", "Running", "all", "creatorids", NULL
238 };
239
240 static const char * const tblcmdopt_list[] = {
241 "kill", "flush", "add", "delete", "load", "replace", "show",
242 "test", "zero", "expire", NULL
243 };
244
245 static const char * const debugopt_list[] = {
246 "none", "urgent", "misc", "loud", NULL
247 };
248
249 static const char * const optiopt_list[] = {
250 "none", "basic", "profile", NULL
251 };
252
253 void
usage(void)254 usage(void)
255 {
256 extern char *__progname;
257
258 fprintf(stderr,
259 "usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
260 "\t[-f file] [-i interface] [-K host | network]\n"
261 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
262 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
263 __progname);
264
265 exit(1);
266 }
267
268 /*
269 * Cache protocol number to name translations.
270 *
271 * Translation is performed a lot e.g., when dumping states and
272 * getprotobynumber is incredibly expensive.
273 *
274 * Note from the getprotobynumber(3) manpage:
275 * <quote>
276 * These functions use a thread-specific data space; if the data is needed
277 * for future use, it should be copied before any subsequent calls overwrite
278 * it. Only the Internet protocols are currently understood.
279 * </quote>
280 *
281 * Consequently we only cache the name and strdup it for safety.
282 *
283 * At the time of writing this comment the last entry in /etc/protocols is:
284 * divert 258 DIVERT # Divert pseudo-protocol [non IANA]
285 */
286 const char *
pfctl_proto2name(int proto)287 pfctl_proto2name(int proto)
288 {
289 static const char *pfctl_proto_cache[259];
290 struct protoent *p;
291
292 if (proto >= nitems(pfctl_proto_cache)) {
293 p = getprotobynumber(proto);
294 if (p == NULL) {
295 return (NULL);
296 }
297 return (p->p_name);
298 }
299
300 if (pfctl_proto_cache[proto] == NULL) {
301 p = getprotobynumber(proto);
302 if (p == NULL) {
303 return (NULL);
304 }
305 pfctl_proto_cache[proto] = strdup(p->p_name);
306 }
307
308 return (pfctl_proto_cache[proto]);
309 }
310
311 int
pfctl_enable(int dev,int opts)312 pfctl_enable(int dev, int opts)
313 {
314 int ret;
315
316 if ((ret = pfctl_startstop(pfh, 1)) != 0) {
317 if (ret == EEXIST)
318 errx(1, "pf already enabled");
319 else if (ret == ESRCH)
320 errx(1, "pfil registeration failed");
321 else
322 errc(1, ret, "DIOCSTART");
323 }
324 if ((opts & PF_OPT_QUIET) == 0)
325 fprintf(stderr, "pf enabled\n");
326
327 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
328 if (errno != EEXIST)
329 err(1, "DIOCSTARTALTQ");
330
331 return (0);
332 }
333
334 int
pfctl_disable(int dev,int opts)335 pfctl_disable(int dev, int opts)
336 {
337 int ret;
338
339 if ((ret = pfctl_startstop(pfh, 0)) != 0) {
340 if (ret == ENOENT)
341 errx(1, "pf not enabled");
342 else
343 errc(1, ret, "DIOCSTOP");
344 }
345 if ((opts & PF_OPT_QUIET) == 0)
346 fprintf(stderr, "pf disabled\n");
347
348 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
349 if (errno != ENOENT)
350 err(1, "DIOCSTOPALTQ");
351
352 return (0);
353 }
354
355 int
pfctl_clear_stats(struct pfctl_handle * h,int opts)356 pfctl_clear_stats(struct pfctl_handle *h, int opts)
357 {
358 int ret;
359 if ((ret = pfctl_clear_status(h)) != 0)
360 errc(1, ret, "DIOCCLRSTATUS");
361 if ((opts & PF_OPT_QUIET) == 0)
362 fprintf(stderr, "pf: statistics cleared\n");
363 return (0);
364 }
365
366 int
pfctl_get_skip_ifaces(void)367 pfctl_get_skip_ifaces(void)
368 {
369 bzero(&skip_b, sizeof(skip_b));
370 skip_b.pfrb_type = PFRB_IFACES;
371 for (;;) {
372 pfr_buf_grow(&skip_b, skip_b.pfrb_size);
373 skip_b.pfrb_size = skip_b.pfrb_msize;
374 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
375 err(1, "pfi_get_ifaces");
376 if (skip_b.pfrb_size <= skip_b.pfrb_msize)
377 break;
378 }
379 return (0);
380 }
381
382 int
pfctl_check_skip_ifaces(char * ifname)383 pfctl_check_skip_ifaces(char *ifname)
384 {
385 struct pfi_kif *p;
386 struct node_host *h = NULL, *n = NULL;
387
388 PFRB_FOREACH(p, &skip_b) {
389 if (!strcmp(ifname, p->pfik_name) &&
390 (p->pfik_flags & PFI_IFLAG_SKIP))
391 p->pfik_flags &= ~PFI_IFLAG_SKIP;
392 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
393 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
394 continue;
395
396 for (n = h; n != NULL; n = n->next) {
397 if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
398 continue;
399
400 p->pfik_flags &= ~PFI_IFLAG_SKIP;
401 }
402 }
403 }
404 return (0);
405 }
406
407 int
pfctl_adjust_skip_ifaces(struct pfctl * pf)408 pfctl_adjust_skip_ifaces(struct pfctl *pf)
409 {
410 struct pfi_kif *p, *pp;
411 struct node_host *h = NULL, *n = NULL;
412
413 PFRB_FOREACH(p, &skip_b) {
414 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
415 continue;
416
417 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
418 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
419 continue;
420
421 for (n = h; n != NULL; n = n->next)
422 PFRB_FOREACH(pp, &skip_b) {
423 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
424 continue;
425
426 if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
427 pfctl_set_interface_flags(pf,
428 pp->pfik_name, PFI_IFLAG_SKIP, 1);
429 if (pp->pfik_flags & PFI_IFLAG_SKIP)
430 pp->pfik_flags &= ~PFI_IFLAG_SKIP;
431 }
432 }
433
434 PFRB_FOREACH(p, &skip_b) {
435 if (! (p->pfik_flags & PFI_IFLAG_SKIP))
436 continue;
437
438 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
439 }
440
441 return (0);
442 }
443
444 int
pfctl_clear_interface_flags(int dev,int opts)445 pfctl_clear_interface_flags(int dev, int opts)
446 {
447 struct pfioc_iface pi;
448
449 if ((opts & PF_OPT_NOACTION) == 0) {
450 bzero(&pi, sizeof(pi));
451 pi.pfiio_flags = PFI_IFLAG_SKIP;
452
453 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
454 err(1, "DIOCCLRIFFLAG");
455 if ((opts & PF_OPT_QUIET) == 0)
456 fprintf(stderr, "pf: interface flags reset\n");
457 }
458 return (0);
459 }
460
461 int
pfctl_flush_eth_rules(int dev,int opts,char * anchorname)462 pfctl_flush_eth_rules(int dev, int opts, char *anchorname)
463 {
464 int ret;
465
466 ret = pfctl_clear_eth_rules(dev, anchorname);
467 if (ret != 0)
468 err(1, "pfctl_clear_eth_rules");
469
470 if ((opts & PF_OPT_QUIET) == 0)
471 fprintf(stderr, "Ethernet rules cleared\n");
472
473 return (ret);
474 }
475
476 int
pfctl_flush_rules(int dev,int opts,char * anchorname)477 pfctl_flush_rules(int dev, int opts, char *anchorname)
478 {
479 int ret;
480
481 ret = pfctl_clear_rules(dev, anchorname);
482 if (ret != 0)
483 err(1, "pfctl_clear_rules");
484 if ((opts & PF_OPT_QUIET) == 0)
485 fprintf(stderr, "rules cleared\n");
486 return (0);
487 }
488
489 int
pfctl_flush_nat(int dev,int opts,char * anchorname)490 pfctl_flush_nat(int dev, int opts, char *anchorname)
491 {
492 int ret;
493
494 ret = pfctl_clear_nat(dev, anchorname);
495 if (ret != 0)
496 err(1, "pfctl_clear_nat");
497 if ((opts & PF_OPT_QUIET) == 0)
498 fprintf(stderr, "nat cleared\n");
499 return (0);
500 }
501
502 int
pfctl_clear_altq(int dev,int opts)503 pfctl_clear_altq(int dev, int opts)
504 {
505 struct pfr_buffer t;
506
507 if (!altqsupport)
508 return (-1);
509 memset(&t, 0, sizeof(t));
510 t.pfrb_type = PFRB_TRANS;
511 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
512 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
513 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
514 err(1, "pfctl_clear_altq");
515 if ((opts & PF_OPT_QUIET) == 0)
516 fprintf(stderr, "altq cleared\n");
517 return (0);
518 }
519
520 int
pfctl_clear_src_nodes(int dev,int opts)521 pfctl_clear_src_nodes(int dev, int opts)
522 {
523 if (ioctl(dev, DIOCCLRSRCNODES))
524 err(1, "DIOCCLRSRCNODES");
525 if ((opts & PF_OPT_QUIET) == 0)
526 fprintf(stderr, "source tracking entries cleared\n");
527 return (0);
528 }
529
530 int
pfctl_clear_iface_states(int dev,const char * iface,int opts)531 pfctl_clear_iface_states(int dev, const char *iface, int opts)
532 {
533 struct pfctl_kill kill;
534 unsigned int killed;
535 int ret;
536
537 memset(&kill, 0, sizeof(kill));
538 if (iface != NULL && strlcpy(kill.ifname, iface,
539 sizeof(kill.ifname)) >= sizeof(kill.ifname))
540 errx(1, "invalid interface: %s", iface);
541
542 if (opts & PF_OPT_KILLMATCH)
543 kill.kill_match = true;
544
545 if ((ret = pfctl_clear_states_h(pfh, &kill, &killed)) != 0)
546 errc(1, ret, "DIOCCLRSTATES");
547 if ((opts & PF_OPT_QUIET) == 0)
548 fprintf(stderr, "%d states cleared\n", killed);
549 return (0);
550 }
551
552 void
pfctl_addrprefix(char * addr,struct pf_addr * mask)553 pfctl_addrprefix(char *addr, struct pf_addr *mask)
554 {
555 char *p;
556 const char *errstr;
557 int prefix, ret_ga, q, r;
558 struct addrinfo hints, *res;
559
560 if ((p = strchr(addr, '/')) == NULL)
561 return;
562
563 *p++ = '\0';
564 prefix = strtonum(p, 0, 128, &errstr);
565 if (errstr)
566 errx(1, "prefix is %s: %s", errstr, p);
567
568 bzero(&hints, sizeof(hints));
569 /* prefix only with numeric addresses */
570 hints.ai_flags |= AI_NUMERICHOST;
571
572 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
573 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
574 /* NOTREACHED */
575 }
576
577 if (res->ai_family == AF_INET && prefix > 32)
578 errx(1, "prefix too long for AF_INET");
579 else if (res->ai_family == AF_INET6 && prefix > 128)
580 errx(1, "prefix too long for AF_INET6");
581
582 q = prefix >> 3;
583 r = prefix & 7;
584 switch (res->ai_family) {
585 case AF_INET:
586 bzero(&mask->v4, sizeof(mask->v4));
587 mask->v4.s_addr = htonl((u_int32_t)
588 (0xffffffffffULL << (32 - prefix)));
589 break;
590 case AF_INET6:
591 bzero(&mask->v6, sizeof(mask->v6));
592 if (q > 0)
593 memset((void *)&mask->v6, 0xff, q);
594 if (r > 0)
595 *((u_char *)&mask->v6 + q) =
596 (0xff00 >> r) & 0xff;
597 break;
598 }
599 freeaddrinfo(res);
600 }
601
602 int
pfctl_kill_src_nodes(int dev,const char * iface,int opts)603 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
604 {
605 struct pfioc_src_node_kill psnk;
606 struct addrinfo *res[2], *resp[2];
607 struct sockaddr last_src, last_dst;
608 int killed, sources, dests;
609 int ret_ga;
610
611 killed = sources = dests = 0;
612
613 memset(&psnk, 0, sizeof(psnk));
614 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
615 sizeof(psnk.psnk_src.addr.v.a.mask));
616 memset(&last_src, 0xff, sizeof(last_src));
617 memset(&last_dst, 0xff, sizeof(last_dst));
618
619 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
620
621 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
622 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
623 /* NOTREACHED */
624 }
625 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
626 if (resp[0]->ai_addr == NULL)
627 continue;
628 /* We get lots of duplicates. Catch the easy ones */
629 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
630 continue;
631 last_src = *(struct sockaddr *)resp[0]->ai_addr;
632
633 psnk.psnk_af = resp[0]->ai_family;
634 sources++;
635
636 if (psnk.psnk_af == AF_INET)
637 psnk.psnk_src.addr.v.a.addr.v4 =
638 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
639 else if (psnk.psnk_af == AF_INET6)
640 psnk.psnk_src.addr.v.a.addr.v6 =
641 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
642 sin6_addr;
643 else
644 errx(1, "Unknown address family %d", psnk.psnk_af);
645
646 if (src_node_killers > 1) {
647 dests = 0;
648 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
649 sizeof(psnk.psnk_dst.addr.v.a.mask));
650 memset(&last_dst, 0xff, sizeof(last_dst));
651 pfctl_addrprefix(src_node_kill[1],
652 &psnk.psnk_dst.addr.v.a.mask);
653 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
654 &res[1]))) {
655 errx(1, "getaddrinfo: %s",
656 gai_strerror(ret_ga));
657 /* NOTREACHED */
658 }
659 for (resp[1] = res[1]; resp[1];
660 resp[1] = resp[1]->ai_next) {
661 if (resp[1]->ai_addr == NULL)
662 continue;
663 if (psnk.psnk_af != resp[1]->ai_family)
664 continue;
665
666 if (memcmp(&last_dst, resp[1]->ai_addr,
667 sizeof(last_dst)) == 0)
668 continue;
669 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
670
671 dests++;
672
673 if (psnk.psnk_af == AF_INET)
674 psnk.psnk_dst.addr.v.a.addr.v4 =
675 ((struct sockaddr_in *)resp[1]->
676 ai_addr)->sin_addr;
677 else if (psnk.psnk_af == AF_INET6)
678 psnk.psnk_dst.addr.v.a.addr.v6 =
679 ((struct sockaddr_in6 *)resp[1]->
680 ai_addr)->sin6_addr;
681 else
682 errx(1, "Unknown address family %d",
683 psnk.psnk_af);
684
685 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
686 err(1, "DIOCKILLSRCNODES");
687 killed += psnk.psnk_killed;
688 }
689 freeaddrinfo(res[1]);
690 } else {
691 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
692 err(1, "DIOCKILLSRCNODES");
693 killed += psnk.psnk_killed;
694 }
695 }
696
697 freeaddrinfo(res[0]);
698
699 if ((opts & PF_OPT_QUIET) == 0)
700 fprintf(stderr, "killed %d src nodes from %d sources and %d "
701 "destinations\n", killed, sources, dests);
702 return (0);
703 }
704
705 int
pfctl_net_kill_states(int dev,const char * iface,int opts)706 pfctl_net_kill_states(int dev, const char *iface, int opts)
707 {
708 struct pfctl_kill kill;
709 struct addrinfo *res[2], *resp[2];
710 struct sockaddr last_src, last_dst;
711 unsigned int newkilled;
712 int killed, sources, dests;
713 int ret_ga, ret;
714
715 killed = sources = dests = 0;
716
717 memset(&kill, 0, sizeof(kill));
718 memset(&kill.src.addr.v.a.mask, 0xff,
719 sizeof(kill.src.addr.v.a.mask));
720 memset(&last_src, 0xff, sizeof(last_src));
721 memset(&last_dst, 0xff, sizeof(last_dst));
722 if (iface != NULL && strlcpy(kill.ifname, iface,
723 sizeof(kill.ifname)) >= sizeof(kill.ifname))
724 errx(1, "invalid interface: %s", iface);
725
726 if (state_killers == 2 && (strcmp(state_kill[0], "nat") == 0)) {
727 kill.nat = true;
728 state_kill[0] = state_kill[1];
729 state_killers = 1;
730 }
731
732 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
733
734 if (opts & PF_OPT_KILLMATCH)
735 kill.kill_match = true;
736
737 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
738 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
739 /* NOTREACHED */
740 }
741 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
742 if (resp[0]->ai_addr == NULL)
743 continue;
744 /* We get lots of duplicates. Catch the easy ones */
745 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
746 continue;
747 last_src = *(struct sockaddr *)resp[0]->ai_addr;
748
749 kill.af = resp[0]->ai_family;
750 sources++;
751
752 if (kill.af == AF_INET)
753 kill.src.addr.v.a.addr.v4 =
754 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
755 else if (kill.af == AF_INET6)
756 kill.src.addr.v.a.addr.v6 =
757 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
758 sin6_addr;
759 else
760 errx(1, "Unknown address family %d", kill.af);
761
762 if (state_killers > 1) {
763 dests = 0;
764 memset(&kill.dst.addr.v.a.mask, 0xff,
765 sizeof(kill.dst.addr.v.a.mask));
766 memset(&last_dst, 0xff, sizeof(last_dst));
767 pfctl_addrprefix(state_kill[1],
768 &kill.dst.addr.v.a.mask);
769 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
770 &res[1]))) {
771 errx(1, "getaddrinfo: %s",
772 gai_strerror(ret_ga));
773 /* NOTREACHED */
774 }
775 for (resp[1] = res[1]; resp[1];
776 resp[1] = resp[1]->ai_next) {
777 if (resp[1]->ai_addr == NULL)
778 continue;
779 if (kill.af != resp[1]->ai_family)
780 continue;
781
782 if (memcmp(&last_dst, resp[1]->ai_addr,
783 sizeof(last_dst)) == 0)
784 continue;
785 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
786
787 dests++;
788
789 if (kill.af == AF_INET)
790 kill.dst.addr.v.a.addr.v4 =
791 ((struct sockaddr_in *)resp[1]->
792 ai_addr)->sin_addr;
793 else if (kill.af == AF_INET6)
794 kill.dst.addr.v.a.addr.v6 =
795 ((struct sockaddr_in6 *)resp[1]->
796 ai_addr)->sin6_addr;
797 else
798 errx(1, "Unknown address family %d",
799 kill.af);
800
801 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
802 errc(1, ret, "DIOCKILLSTATES");
803 killed += newkilled;
804 }
805 freeaddrinfo(res[1]);
806 } else {
807 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
808 errc(1, ret, "DIOCKILLSTATES");
809 killed += newkilled;
810 }
811 }
812
813 freeaddrinfo(res[0]);
814
815 if ((opts & PF_OPT_QUIET) == 0)
816 fprintf(stderr, "killed %d states from %d sources and %d "
817 "destinations\n", killed, sources, dests);
818 return (0);
819 }
820
821 int
pfctl_gateway_kill_states(int dev,const char * iface,int opts)822 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
823 {
824 struct pfctl_kill kill;
825 struct addrinfo *res, *resp;
826 struct sockaddr last_src;
827 unsigned int newkilled;
828 int killed = 0;
829 int ret_ga;
830
831 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
832 warnx("no gateway specified");
833 usage();
834 }
835
836 memset(&kill, 0, sizeof(kill));
837 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
838 sizeof(kill.rt_addr.addr.v.a.mask));
839 memset(&last_src, 0xff, sizeof(last_src));
840 if (iface != NULL && strlcpy(kill.ifname, iface,
841 sizeof(kill.ifname)) >= sizeof(kill.ifname))
842 errx(1, "invalid interface: %s", iface);
843
844 if (opts & PF_OPT_KILLMATCH)
845 kill.kill_match = true;
846
847 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
848
849 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
850 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
851 /* NOTREACHED */
852 }
853 for (resp = res; resp; resp = resp->ai_next) {
854 if (resp->ai_addr == NULL)
855 continue;
856 /* We get lots of duplicates. Catch the easy ones */
857 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
858 continue;
859 last_src = *(struct sockaddr *)resp->ai_addr;
860
861 kill.af = resp->ai_family;
862
863 if (kill.af == AF_INET)
864 kill.rt_addr.addr.v.a.addr.v4 =
865 ((struct sockaddr_in *)resp->ai_addr)->sin_addr;
866 else if (kill.af == AF_INET6)
867 kill.rt_addr.addr.v.a.addr.v6 =
868 ((struct sockaddr_in6 *)resp->ai_addr)->
869 sin6_addr;
870 else
871 errx(1, "Unknown address family %d", kill.af);
872
873 if (pfctl_kill_states_h(pfh, &kill, &newkilled))
874 err(1, "DIOCKILLSTATES");
875 killed += newkilled;
876 }
877
878 freeaddrinfo(res);
879
880 if ((opts & PF_OPT_QUIET) == 0)
881 fprintf(stderr, "killed %d states\n", killed);
882 return (0);
883 }
884
885 int
pfctl_label_kill_states(int dev,const char * iface,int opts)886 pfctl_label_kill_states(int dev, const char *iface, int opts)
887 {
888 struct pfctl_kill kill;
889 unsigned int killed;
890 int ret;
891
892 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
893 warnx("no label specified");
894 usage();
895 }
896 memset(&kill, 0, sizeof(kill));
897 if (iface != NULL && strlcpy(kill.ifname, iface,
898 sizeof(kill.ifname)) >= sizeof(kill.ifname))
899 errx(1, "invalid interface: %s", iface);
900
901 if (opts & PF_OPT_KILLMATCH)
902 kill.kill_match = true;
903
904 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
905 sizeof(kill.label))
906 errx(1, "label too long: %s", state_kill[1]);
907
908 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
909 errc(1, ret, "DIOCKILLSTATES");
910
911 if ((opts & PF_OPT_QUIET) == 0)
912 fprintf(stderr, "killed %d states\n", killed);
913
914 return (0);
915 }
916
917 int
pfctl_id_kill_states(int dev,const char * iface,int opts)918 pfctl_id_kill_states(int dev, const char *iface, int opts)
919 {
920 struct pfctl_kill kill;
921 unsigned int killed;
922 int ret;
923
924 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
925 warnx("no id specified");
926 usage();
927 }
928
929 memset(&kill, 0, sizeof(kill));
930
931 if (opts & PF_OPT_KILLMATCH)
932 kill.kill_match = true;
933
934 if ((sscanf(state_kill[1], "%jx/%x",
935 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
936 }
937 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
938 kill.cmp.creatorid = 0;
939 } else {
940 warnx("wrong id format specified");
941 usage();
942 }
943 if (kill.cmp.id == 0) {
944 warnx("cannot kill id 0");
945 usage();
946 }
947
948 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
949 errc(1, ret, "DIOCKILLSTATES");
950
951 if ((opts & PF_OPT_QUIET) == 0)
952 fprintf(stderr, "killed %d states\n", killed);
953
954 return (0);
955 }
956
957 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,char * anchorname)958 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
959 u_int32_t ticket, int r_action, char *anchorname)
960 {
961 struct pfioc_pooladdr pp;
962 struct pf_pooladdr *pa;
963 u_int32_t pnr, mpnr;
964 int ret;
965
966 memset(&pp, 0, sizeof(pp));
967 if ((ret = pfctl_get_addrs(pfh, ticket, nr, r_action, anchorname, &mpnr)) != 0) {
968 warnc(ret, "DIOCGETADDRS");
969 return (-1);
970 }
971
972 TAILQ_INIT(&pool->list);
973 for (pnr = 0; pnr < mpnr; ++pnr) {
974 if ((ret = pfctl_get_addr(pfh, ticket, nr, r_action, anchorname, pnr, &pp)) != 0) {
975 warnc(ret, "DIOCGETADDR");
976 return (-1);
977 }
978 pa = calloc(1, sizeof(struct pf_pooladdr));
979 if (pa == NULL)
980 err(1, "calloc");
981 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
982 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
983 }
984
985 return (0);
986 }
987
988 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)989 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
990 {
991 struct pf_pooladdr *pa;
992
993 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
994 TAILQ_REMOVE(&src->list, pa, entries);
995 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
996 }
997 }
998
999 void
pfctl_clear_pool(struct pfctl_pool * pool)1000 pfctl_clear_pool(struct pfctl_pool *pool)
1001 {
1002 struct pf_pooladdr *pa;
1003
1004 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
1005 TAILQ_REMOVE(&pool->list, pa, entries);
1006 free(pa);
1007 }
1008 }
1009
1010 void
pfctl_print_eth_rule_counters(struct pfctl_eth_rule * rule,int opts)1011 pfctl_print_eth_rule_counters(struct pfctl_eth_rule *rule, int opts)
1012 {
1013 if (opts & PF_OPT_VERBOSE) {
1014 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1015 "Bytes: %-10llu]\n",
1016 (unsigned long long)rule->evaluations,
1017 (unsigned long long)(rule->packets[0] +
1018 rule->packets[1]),
1019 (unsigned long long)(rule->bytes[0] +
1020 rule->bytes[1]));
1021 }
1022 if (opts & PF_OPT_VERBOSE2) {
1023 char timestr[30];
1024
1025 if (rule->last_active_timestamp != 0) {
1026 bcopy(ctime(&rule->last_active_timestamp), timestr,
1027 sizeof(timestr));
1028 *strchr(timestr, '\n') = '\0';
1029 } else {
1030 snprintf(timestr, sizeof(timestr), "N/A");
1031 }
1032 printf(" [ Last Active Time: %s ]\n", timestr);
1033 }
1034 }
1035
1036 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)1037 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
1038 {
1039 if (opts & PF_OPT_DEBUG) {
1040 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
1041 "p", "sa", "da", "sp", "dp" };
1042 int i;
1043
1044 printf(" [ Skip steps: ");
1045 for (i = 0; i < PF_SKIP_COUNT; ++i) {
1046 if (rule->skip[i].nr == rule->nr + 1)
1047 continue;
1048 printf("%s=", t[i]);
1049 if (rule->skip[i].nr == -1)
1050 printf("end ");
1051 else
1052 printf("%u ", rule->skip[i].nr);
1053 }
1054 printf("]\n");
1055
1056 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
1057 rule->qname, rule->qid, rule->pqname, rule->pqid);
1058 }
1059 if (opts & PF_OPT_VERBOSE) {
1060 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1061 "Bytes: %-10llu States: %-6ju]\n",
1062 (unsigned long long)rule->evaluations,
1063 (unsigned long long)(rule->packets[0] +
1064 rule->packets[1]),
1065 (unsigned long long)(rule->bytes[0] +
1066 rule->bytes[1]), (uintmax_t)rule->states_cur);
1067 if (!(opts & PF_OPT_DEBUG))
1068 printf(" [ Inserted: uid %u pid %u "
1069 "State Creations: %-6ju]\n",
1070 (unsigned)rule->cuid, (unsigned)rule->cpid,
1071 (uintmax_t)rule->states_tot);
1072 }
1073 if (opts & PF_OPT_VERBOSE2) {
1074 char timestr[30];
1075 if (rule->last_active_timestamp != 0) {
1076 bcopy(ctime(&rule->last_active_timestamp), timestr,
1077 sizeof(timestr));
1078 *strchr(timestr, '\n') = '\0';
1079 } else {
1080 snprintf(timestr, sizeof(timestr), "N/A");
1081 }
1082 printf(" [ Last Active Time: %s ]\n", timestr);
1083 }
1084 }
1085
1086 void
pfctl_print_title(char * title)1087 pfctl_print_title(char *title)
1088 {
1089 if (!first_title)
1090 printf("\n");
1091 first_title = 0;
1092 printf("%s\n", title);
1093 }
1094
1095 int
pfctl_show_eth_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1096 pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format,
1097 char *anchorname, int depth, int wildcard)
1098 {
1099 char anchor_call[MAXPATHLEN];
1100 struct pfctl_eth_rules_info info;
1101 struct pfctl_eth_rule rule;
1102 int brace;
1103 int dotitle = opts & PF_OPT_SHOWALL;
1104 int len = strlen(path);
1105 int ret;
1106 char *npath, *p;
1107
1108 /*
1109 * Truncate a trailing / and * on an anchorname before searching for
1110 * the ruleset, this is syntactic sugar that doesn't actually make it
1111 * to the kernel.
1112 */
1113 if ((p = strrchr(anchorname, '/')) != NULL &&
1114 p[1] == '*' && p[2] == '\0') {
1115 p[0] = '\0';
1116 }
1117
1118 if (anchorname[0] == '/') {
1119 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1120 errx(1, "pfctl_rules: calloc");
1121 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1122 } else {
1123 if (path[0])
1124 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1125 else
1126 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1127 npath = path;
1128 }
1129
1130 /*
1131 * If this anchor was called with a wildcard path, go through
1132 * the rulesets in the anchor rather than the rules.
1133 */
1134 if (wildcard && (opts & PF_OPT_RECURSE)) {
1135 struct pfctl_eth_rulesets_info ri;
1136 u_int32_t mnr, nr;
1137
1138 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, npath)) != 0) {
1139 if (ret == EINVAL) {
1140 fprintf(stderr, "Anchor '%s' "
1141 "not found.\n", anchorname);
1142 } else {
1143 warnc(ret, "DIOCGETETHRULESETS");
1144 return (-1);
1145 }
1146 }
1147 mnr = ri.nr;
1148
1149 pfctl_print_eth_rule_counters(&rule, opts);
1150 for (nr = 0; nr < mnr; ++nr) {
1151 struct pfctl_eth_ruleset_info rs;
1152
1153 if ((ret = pfctl_get_eth_ruleset(dev, npath, nr, &rs)) != 0)
1154 errc(1, ret, "DIOCGETETHRULESET");
1155 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1156 printf("anchor \"%s\" all {\n", rs.name);
1157 pfctl_show_eth_rules(dev, npath, opts,
1158 format, rs.name, depth + 1, 0);
1159 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1160 printf("}\n");
1161 }
1162 path[len] = '\0';
1163 return (0);
1164 }
1165
1166 if ((ret = pfctl_get_eth_rules_info(dev, &info, path)) != 0) {
1167 warnc(ret, "DIOCGETETHRULES");
1168 return (-1);
1169 }
1170 for (int nr = 0; nr < info.nr; nr++) {
1171 brace = 0;
1172 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1173 if ((ret = pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule,
1174 opts & PF_OPT_CLRRULECTRS, anchor_call)) != 0) {
1175 warnc(ret, "DIOCGETETHRULE");
1176 return (-1);
1177 }
1178 if (anchor_call[0] &&
1179 ((((p = strrchr(anchor_call, '_')) != NULL) &&
1180 (p == anchor_call ||
1181 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
1182 brace++;
1183 int aclen = strlen(anchor_call);
1184 if (anchor_call[aclen - 1] == '*')
1185 anchor_call[aclen - 2] = '\0';
1186 }
1187 p = &anchor_call[0];
1188 if (dotitle) {
1189 pfctl_print_title("ETH RULES:");
1190 dotitle = 0;
1191 }
1192 print_eth_rule(&rule, anchor_call,
1193 opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1194 if (brace)
1195 printf(" {\n");
1196 else
1197 printf("\n");
1198 pfctl_print_eth_rule_counters(&rule, opts);
1199 if (brace) {
1200 pfctl_show_eth_rules(dev, path, opts, format,
1201 p, depth + 1, rule.anchor_wildcard);
1202 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1203 printf("}\n");
1204 }
1205 }
1206
1207 path[len] = '\0';
1208 return (0);
1209 }
1210
1211 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1212 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1213 char *anchorname, int depth, int wildcard)
1214 {
1215 struct pfctl_rules_info ri;
1216 struct pfctl_rule rule;
1217 char anchor_call[MAXPATHLEN];
1218 u_int32_t nr, header = 0;
1219 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1220 int numeric = opts & PF_OPT_NUMERIC;
1221 int len = strlen(path), ret = 0;
1222 char *npath, *p;
1223
1224 /*
1225 * Truncate a trailing / and * on an anchorname before searching for
1226 * the ruleset, this is syntactic sugar that doesn't actually make it
1227 * to the kernel.
1228 */
1229 if ((p = strrchr(anchorname, '/')) != NULL &&
1230 p[1] == '*' && p[2] == '\0') {
1231 p[0] = '\0';
1232 }
1233
1234 if (anchorname[0] == '/') {
1235 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1236 errx(1, "pfctl_rules: calloc");
1237 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1238 } else {
1239 if (path[0])
1240 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1241 else
1242 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1243 npath = path;
1244 }
1245
1246 /*
1247 * If this anchor was called with a wildcard path, go through
1248 * the rulesets in the anchor rather than the rules.
1249 */
1250 if (wildcard && (opts & PF_OPT_RECURSE)) {
1251 struct pfioc_ruleset prs;
1252 u_int32_t mnr, nr;
1253
1254 memset(&prs, 0, sizeof(prs));
1255 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
1256 if (ret == EINVAL)
1257 fprintf(stderr, "Anchor '%s' "
1258 "not found.\n", anchorname);
1259 else
1260 errc(1, ret, "DIOCGETRULESETS");
1261 }
1262
1263 pfctl_print_rule_counters(&rule, opts);
1264 for (nr = 0; nr < mnr; ++nr) {
1265 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1266 errc(1, ret, "DIOCGETRULESET");
1267 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1268 printf("anchor \"%s\" all {\n", prs.name);
1269 pfctl_show_rules(dev, npath, opts,
1270 format, prs.name, depth + 1, 0);
1271 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1272 printf("}\n");
1273 }
1274 path[len] = '\0';
1275 return (0);
1276 }
1277
1278 if (opts & PF_OPT_SHOWALL) {
1279 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1280 if (ret != 0) {
1281 warnc(ret, "DIOCGETRULES");
1282 goto error;
1283 }
1284 header++;
1285 }
1286 ret = pfctl_get_rules_info_h(pfh, &ri, PF_SCRUB, path);
1287 if (ret != 0) {
1288 warnc(ret, "DIOCGETRULES");
1289 goto error;
1290 }
1291 if (opts & PF_OPT_SHOWALL) {
1292 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1293 pfctl_print_title("FILTER RULES:");
1294 else if (format == PFCTL_SHOW_LABELS && labels)
1295 pfctl_print_title("LABEL COUNTERS:");
1296 }
1297
1298 for (nr = 0; nr < ri.nr; ++nr) {
1299 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_SCRUB,
1300 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1301 warnc(ret, "DIOCGETRULENV");
1302 goto error;
1303 }
1304
1305 if (pfctl_get_pool(dev, &rule.rpool,
1306 nr, ri.ticket, PF_SCRUB, path) != 0)
1307 goto error;
1308
1309 switch (format) {
1310 case PFCTL_SHOW_LABELS:
1311 break;
1312 case PFCTL_SHOW_RULES:
1313 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1314 labels = 1;
1315 print_rule(&rule, anchor_call, rule_numbers, numeric);
1316 printf("\n");
1317 pfctl_print_rule_counters(&rule, opts);
1318 break;
1319 case PFCTL_SHOW_NOTHING:
1320 break;
1321 }
1322 pfctl_clear_pool(&rule.rpool);
1323 }
1324 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1325 if (ret != 0) {
1326 warnc(ret, "DIOCGETRULES");
1327 goto error;
1328 }
1329 for (nr = 0; nr < ri.nr; ++nr) {
1330 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_PASS,
1331 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1332 warnc(ret, "DIOCGETRULE");
1333 goto error;
1334 }
1335
1336 if (pfctl_get_pool(dev, &rule.rpool,
1337 nr, ri.ticket, PF_PASS, path) != 0)
1338 goto error;
1339
1340 switch (format) {
1341 case PFCTL_SHOW_LABELS: {
1342 bool show = false;
1343 int i = 0;
1344
1345 while (rule.label[i][0]) {
1346 printf("%s ", rule.label[i++]);
1347 show = true;
1348 }
1349
1350 if (show) {
1351 printf("%llu %llu %llu %llu"
1352 " %llu %llu %llu %ju\n",
1353 (unsigned long long)rule.evaluations,
1354 (unsigned long long)(rule.packets[0] +
1355 rule.packets[1]),
1356 (unsigned long long)(rule.bytes[0] +
1357 rule.bytes[1]),
1358 (unsigned long long)rule.packets[0],
1359 (unsigned long long)rule.bytes[0],
1360 (unsigned long long)rule.packets[1],
1361 (unsigned long long)rule.bytes[1],
1362 (uintmax_t)rule.states_tot);
1363 }
1364
1365 if (anchor_call[0] &&
1366 (((p = strrchr(anchor_call, '/')) ?
1367 p[1] == '_' : anchor_call[0] == '_') ||
1368 opts & PF_OPT_RECURSE)) {
1369 pfctl_show_rules(dev, npath, opts, format,
1370 anchor_call, depth, rule.anchor_wildcard);
1371 }
1372 break;
1373 }
1374 case PFCTL_SHOW_RULES:
1375 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1376 labels = 1;
1377 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1378 print_rule(&rule, anchor_call, rule_numbers, numeric);
1379
1380 /*
1381 * If this is a 'unnamed' brace notation
1382 * anchor, OR the user has explicitly requested
1383 * recursion, print it recursively.
1384 */
1385 if (anchor_call[0] &&
1386 (((p = strrchr(anchor_call, '/')) ?
1387 p[1] == '_' : anchor_call[0] == '_') ||
1388 opts & PF_OPT_RECURSE)) {
1389 printf(" {\n");
1390 pfctl_print_rule_counters(&rule, opts);
1391 pfctl_show_rules(dev, npath, opts, format,
1392 anchor_call, depth + 1,
1393 rule.anchor_wildcard);
1394 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1395 printf("}\n");
1396 } else {
1397 printf("\n");
1398 pfctl_print_rule_counters(&rule, opts);
1399 }
1400 break;
1401 case PFCTL_SHOW_NOTHING:
1402 break;
1403 }
1404 pfctl_clear_pool(&rule.rpool);
1405 }
1406
1407 error:
1408 path[len] = '\0';
1409 return (ret);
1410 }
1411
1412 int
pfctl_show_nat(int dev,char * path,int opts,char * anchorname,int depth,int wildcard)1413 pfctl_show_nat(int dev, char *path, int opts, char *anchorname, int depth,
1414 int wildcard)
1415 {
1416 struct pfctl_rules_info ri;
1417 struct pfctl_rule rule;
1418 char anchor_call[MAXPATHLEN];
1419 u_int32_t nr;
1420 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1421 int i, dotitle = opts & PF_OPT_SHOWALL;
1422 int ret;
1423 int len = strlen(path);
1424 char *npath, *p;
1425
1426 /*
1427 * Truncate a trailing / and * on an anchorname before searching for
1428 * the ruleset, this is syntactic sugar that doesn't actually make it
1429 * to the kernel.
1430 */
1431 if ((p = strrchr(anchorname, '/')) != NULL &&
1432 p[1] == '*' && p[2] == '\0') {
1433 p[0] = '\0';
1434 }
1435
1436 if (anchorname[0] == '/') {
1437 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1438 errx(1, "pfctl_rules: calloc");
1439 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1440 } else {
1441 if (path[0])
1442 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1443 else
1444 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1445 npath = path;
1446 }
1447
1448 /*
1449 * If this anchor was called with a wildcard path, go through
1450 * the rulesets in the anchor rather than the rules.
1451 */
1452 if (wildcard && (opts & PF_OPT_RECURSE)) {
1453 struct pfioc_ruleset prs;
1454 u_int32_t mnr, nr;
1455 memset(&prs, 0, sizeof(prs));
1456 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
1457 if (ret == EINVAL)
1458 fprintf(stderr, "NAT anchor '%s' "
1459 "not found.\n", anchorname);
1460 else
1461 errc(1, ret, "DIOCGETRULESETS");
1462 }
1463
1464 pfctl_print_rule_counters(&rule, opts);
1465 for (nr = 0; nr < mnr; ++nr) {
1466 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1467 errc(1, ret, "DIOCGETRULESET");
1468 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1469 printf("nat-anchor \"%s\" all {\n", prs.name);
1470 pfctl_show_nat(dev, npath, opts,
1471 prs.name, depth + 1, 0);
1472 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1473 printf("}\n");
1474 }
1475 path[len] = '\0';
1476 return (0);
1477 }
1478
1479 for (i = 0; i < 3; i++) {
1480 ret = pfctl_get_rules_info_h(pfh, &ri, nattype[i], path);
1481 if (ret != 0) {
1482 warnc(ret, "DIOCGETRULES");
1483 return (-1);
1484 }
1485 for (nr = 0; nr < ri.nr; ++nr) {
1486 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1487
1488 if ((ret = pfctl_get_rule_h(pfh, nr, ri.ticket, path,
1489 nattype[i], &rule, anchor_call)) != 0) {
1490 warnc(ret, "DIOCGETRULE");
1491 return (-1);
1492 }
1493 if (pfctl_get_pool(dev, &rule.rpool, nr,
1494 ri.ticket, nattype[i], path) != 0)
1495 return (-1);
1496
1497 if (dotitle) {
1498 pfctl_print_title("TRANSLATION RULES:");
1499 dotitle = 0;
1500 }
1501 print_rule(&rule, anchor_call,
1502 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1503 if (anchor_call[0] &&
1504 (((p = strrchr(anchor_call, '/')) ?
1505 p[1] == '_' : anchor_call[0] == '_') ||
1506 opts & PF_OPT_RECURSE)) {
1507 printf(" {\n");
1508 pfctl_print_rule_counters(&rule, opts);
1509 pfctl_show_nat(dev, npath, opts, anchor_call,
1510 depth + 1, rule.anchor_wildcard);
1511 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1512 printf("}\n");
1513 } else {
1514 printf("\n");
1515 pfctl_print_rule_counters(&rule, opts);
1516 }
1517 }
1518 }
1519 return (0);
1520 }
1521
1522 static int
pfctl_print_src_node(struct pfctl_src_node * sn,void * arg)1523 pfctl_print_src_node(struct pfctl_src_node *sn, void *arg)
1524 {
1525 int *opts = (int *)arg;
1526
1527 if (*opts & PF_OPT_SHOWALL) {
1528 pfctl_print_title("SOURCE TRACKING NODES:");
1529 *opts &= ~PF_OPT_SHOWALL;
1530 }
1531
1532 print_src_node(sn, *opts);
1533
1534 return (0);
1535 }
1536
1537 int
pfctl_show_src_nodes(int dev,int opts)1538 pfctl_show_src_nodes(int dev, int opts)
1539 {
1540 int error;
1541
1542 error = pfctl_get_srcnodes(pfh, pfctl_print_src_node, &opts);
1543
1544 return (error);
1545 }
1546
1547 struct pfctl_show_state_arg {
1548 int opts;
1549 int dotitle;
1550 const char *iface;
1551 };
1552
1553 static int
pfctl_show_state(struct pfctl_state * s,void * arg)1554 pfctl_show_state(struct pfctl_state *s, void *arg)
1555 {
1556 struct pfctl_show_state_arg *a = (struct pfctl_show_state_arg *)arg;
1557
1558 if (a->dotitle) {
1559 pfctl_print_title("STATES:");
1560 a->dotitle = 0;
1561 }
1562 print_state(s, a->opts);
1563
1564 return (0);
1565 }
1566
1567 int
pfctl_show_states(int dev,const char * iface,int opts)1568 pfctl_show_states(int dev, const char *iface, int opts)
1569 {
1570 struct pfctl_show_state_arg arg;
1571 struct pfctl_state_filter filter = {};
1572
1573 if (iface != NULL)
1574 strncpy(filter.ifname, iface, IFNAMSIZ);
1575
1576 arg.opts = opts;
1577 arg.dotitle = opts & PF_OPT_SHOWALL;
1578 arg.iface = iface;
1579
1580 if (pfctl_get_filtered_states_iter(&filter, pfctl_show_state, &arg))
1581 return (-1);
1582
1583 return (0);
1584 }
1585
1586 int
pfctl_show_status(int dev,int opts)1587 pfctl_show_status(int dev, int opts)
1588 {
1589 struct pfctl_status *status;
1590 struct pfctl_syncookies cookies;
1591 int ret;
1592
1593 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1594 warn("DIOCGETSTATUS");
1595 return (-1);
1596 }
1597 if ((ret = pfctl_get_syncookies(dev, &cookies)) != 0) {
1598 pfctl_free_status(status);
1599 warnc(ret, "DIOCGETSYNCOOKIES");
1600 return (-1);
1601 }
1602 if (opts & PF_OPT_SHOWALL)
1603 pfctl_print_title("INFO:");
1604 print_status(status, &cookies, opts);
1605 pfctl_free_status(status);
1606 return (0);
1607 }
1608
1609 int
pfctl_show_running(int dev)1610 pfctl_show_running(int dev)
1611 {
1612 struct pfctl_status *status;
1613 int running;
1614
1615 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1616 warn("DIOCGETSTATUS");
1617 return (-1);
1618 }
1619
1620 running = status->running;
1621
1622 print_running(status);
1623 pfctl_free_status(status);
1624 return (!running);
1625 }
1626
1627 int
pfctl_show_timeouts(int dev,int opts)1628 pfctl_show_timeouts(int dev, int opts)
1629 {
1630 uint32_t seconds;
1631 int i;
1632 int ret;
1633
1634 if (opts & PF_OPT_SHOWALL)
1635 pfctl_print_title("TIMEOUTS:");
1636 for (i = 0; pf_timeouts[i].name; i++) {
1637 if ((ret = pfctl_get_timeout(pfh, pf_timeouts[i].timeout, &seconds)) != 0)
1638 errc(1, ret, "DIOCGETTIMEOUT");
1639 printf("%-20s %10d", pf_timeouts[i].name, seconds);
1640 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1641 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1642 printf(" states");
1643 else
1644 printf("s");
1645 printf("\n");
1646 }
1647 return (0);
1648
1649 }
1650
1651 int
pfctl_show_limits(int dev,int opts)1652 pfctl_show_limits(int dev, int opts)
1653 {
1654 unsigned int limit;
1655 int i;
1656 int ret;
1657
1658 if (opts & PF_OPT_SHOWALL)
1659 pfctl_print_title("LIMITS:");
1660 for (i = 0; pf_limits[i].name; i++) {
1661 if ((ret = pfctl_get_limit(pfh, pf_limits[i].index, &limit)) != 0)
1662 errc(1, ret, "DIOCGETLIMIT");
1663 printf("%-13s ", pf_limits[i].name);
1664 if (limit == UINT_MAX)
1665 printf("unlimited\n");
1666 else
1667 printf("hard limit %8u\n", limit);
1668 }
1669 return (0);
1670 }
1671
1672 void
pfctl_show_creators(int opts)1673 pfctl_show_creators(int opts)
1674 {
1675 int ret;
1676 uint32_t creators[16];
1677 size_t count = nitems(creators);
1678
1679 ret = pfctl_get_creatorids(pfh, creators, &count);
1680 if (ret != 0)
1681 errx(ret, "Failed to retrieve creators");
1682
1683 printf("Creator IDs:\n");
1684 for (size_t i = 0; i < count; i++)
1685 printf("%08x\n", creators[i]);
1686 }
1687
1688 /* callbacks for rule/nat/rdr/addr */
1689 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af)1690 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
1691 {
1692 struct pf_pooladdr *pa;
1693 int ret;
1694
1695 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1696 if ((ret = pfctl_begin_addrs(pf->h, &pf->paddr.ticket)) != 0)
1697 errc(1, ret, "DIOCBEGINADDRS");
1698 }
1699
1700 pf->paddr.af = af;
1701 TAILQ_FOREACH(pa, &p->list, entries) {
1702 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1703 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1704 if ((ret = pfctl_add_addr(pf->h, &pf->paddr)) != 0)
1705 errc(1, ret, "DIOCADDADDR");
1706 }
1707 }
1708 return (0);
1709 }
1710
1711 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1712 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1713 const char *anchor_call)
1714 {
1715 u_int8_t rs_num;
1716 struct pfctl_rule *rule;
1717 struct pfctl_ruleset *rs;
1718 char *p;
1719
1720 rs_num = pf_get_ruleset_number(r->action);
1721 if (rs_num == PF_RULESET_MAX)
1722 errx(1, "Invalid rule type %d", r->action);
1723
1724 rs = &pf->anchor->ruleset;
1725
1726 if (anchor_call[0] && r->anchor == NULL) {
1727 /*
1728 * Don't make non-brace anchors part of the main anchor pool.
1729 */
1730 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1731 err(1, "pfctl_append_rule: calloc");
1732
1733 pf_init_ruleset(&r->anchor->ruleset);
1734 r->anchor->ruleset.anchor = r->anchor;
1735 if (strlcpy(r->anchor->path, anchor_call,
1736 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1737 errx(1, "pfctl_append_rule: strlcpy");
1738 if ((p = strrchr(anchor_call, '/')) != NULL) {
1739 if (!strlen(p))
1740 err(1, "pfctl_append_rule: bad anchor name %s",
1741 anchor_call);
1742 } else
1743 p = (char *)anchor_call;
1744 if (strlcpy(r->anchor->name, p,
1745 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1746 errx(1, "pfctl_append_rule: strlcpy");
1747 }
1748
1749 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1750 err(1, "calloc");
1751 bcopy(r, rule, sizeof(*rule));
1752 TAILQ_INIT(&rule->rpool.list);
1753 pfctl_move_pool(&r->rpool, &rule->rpool);
1754
1755 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1756 return (0);
1757 }
1758
1759 int
pfctl_append_eth_rule(struct pfctl * pf,struct pfctl_eth_rule * r,const char * anchor_call)1760 pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r,
1761 const char *anchor_call)
1762 {
1763 struct pfctl_eth_rule *rule;
1764 struct pfctl_eth_ruleset *rs;
1765 char *p;
1766
1767 rs = &pf->eanchor->ruleset;
1768
1769 if (anchor_call[0] && r->anchor == NULL) {
1770 /*
1771 * Don't make non-brace anchors part of the main anchor pool.
1772 */
1773 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1774 err(1, "pfctl_append_rule: calloc");
1775
1776 pf_init_eth_ruleset(&r->anchor->ruleset);
1777 r->anchor->ruleset.anchor = r->anchor;
1778 if (strlcpy(r->anchor->path, anchor_call,
1779 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1780 errx(1, "pfctl_append_rule: strlcpy");
1781 if ((p = strrchr(anchor_call, '/')) != NULL) {
1782 if (!strlen(p))
1783 err(1, "pfctl_append_eth_rule: bad anchor name %s",
1784 anchor_call);
1785 } else
1786 p = (char *)anchor_call;
1787 if (strlcpy(r->anchor->name, p,
1788 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1789 errx(1, "pfctl_append_eth_rule: strlcpy");
1790 }
1791
1792 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1793 err(1, "calloc");
1794 bcopy(r, rule, sizeof(*rule));
1795
1796 TAILQ_INSERT_TAIL(&rs->rules, rule, entries);
1797 return (0);
1798 }
1799
1800 int
pfctl_eth_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_eth_anchor * a)1801 pfctl_eth_ruleset_trans(struct pfctl *pf, char *path,
1802 struct pfctl_eth_anchor *a)
1803 {
1804 int osize = pf->trans->pfrb_size;
1805
1806 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) {
1807 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1808 return (1);
1809 }
1810 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1811 return (5);
1812
1813 return (0);
1814 }
1815
1816 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a,bool do_eth)1817 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth)
1818 {
1819 int osize = pf->trans->pfrb_size;
1820
1821 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) {
1822 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1823 return (1);
1824 }
1825 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1826 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1827 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1828 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1829 return (1);
1830 }
1831 if (a == pf->astack[0] && ((altqsupport &&
1832 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1833 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1834 return (2);
1835 }
1836 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1837 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1838 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1839 return (3);
1840 }
1841 if (pf->loadopt & PFCTL_FLAG_TABLE)
1842 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1843 return (4);
1844 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1845 return (5);
1846
1847 return (0);
1848 }
1849
1850 int
pfctl_load_eth_ruleset(struct pfctl * pf,char * path,struct pfctl_eth_ruleset * rs,int depth)1851 pfctl_load_eth_ruleset(struct pfctl *pf, char *path,
1852 struct pfctl_eth_ruleset *rs, int depth)
1853 {
1854 struct pfctl_eth_rule *r;
1855 int error, len = strlen(path);
1856 int brace = 0;
1857
1858 pf->eanchor = rs->anchor;
1859 if (path[0])
1860 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name);
1861 else
1862 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name);
1863
1864 if (depth) {
1865 if (TAILQ_FIRST(&rs->rules) != NULL) {
1866 brace++;
1867 if (pf->opts & PF_OPT_VERBOSE)
1868 printf(" {\n");
1869 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1870 (error = pfctl_eth_ruleset_trans(pf,
1871 path, rs->anchor))) {
1872 printf("pfctl_load_eth_rulesets: "
1873 "pfctl_eth_ruleset_trans %d\n", error);
1874 goto error;
1875 }
1876 } else if (pf->opts & PF_OPT_VERBOSE)
1877 printf("\n");
1878 }
1879
1880 while ((r = TAILQ_FIRST(&rs->rules)) != NULL) {
1881 TAILQ_REMOVE(&rs->rules, r, entries);
1882
1883 error = pfctl_load_eth_rule(pf, path, r, depth);
1884 if (error)
1885 return (error);
1886
1887 if (r->anchor) {
1888 if ((error = pfctl_load_eth_ruleset(pf, path,
1889 &r->anchor->ruleset, depth + 1)))
1890 return (error);
1891 } else if (pf->opts & PF_OPT_VERBOSE)
1892 printf("\n");
1893 free(r);
1894 }
1895 if (brace && pf->opts & PF_OPT_VERBOSE) {
1896 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1897 printf("}\n");
1898 }
1899 path[len] = '\0';
1900
1901 return (0);
1902 error:
1903 path[len] = '\0';
1904 return (error);
1905 }
1906
1907 int
pfctl_load_eth_rule(struct pfctl * pf,char * path,struct pfctl_eth_rule * r,int depth)1908 pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r,
1909 int depth)
1910 {
1911 char *name;
1912 char anchor[PF_ANCHOR_NAME_SIZE];
1913 int len = strlen(path);
1914 int ret;
1915
1916 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1917 errx(1, "pfctl_load_eth_rule: strlcpy");
1918
1919 if (r->anchor) {
1920 if (r->anchor->match) {
1921 if (path[0])
1922 snprintf(&path[len], MAXPATHLEN - len,
1923 "/%s", r->anchor->name);
1924 else
1925 snprintf(&path[len], MAXPATHLEN - len,
1926 "%s", r->anchor->name);
1927 name = r->anchor->name;
1928 } else
1929 name = r->anchor->path;
1930 } else
1931 name = "";
1932
1933 if ((pf->opts & PF_OPT_NOACTION) == 0)
1934 if ((ret = pfctl_add_eth_rule(pf->dev, r, anchor, name,
1935 pf->eth_ticket)) != 0)
1936 errc(1, ret, "DIOCADDETHRULENV");
1937
1938 if (pf->opts & PF_OPT_VERBOSE) {
1939 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1940 print_eth_rule(r, r->anchor ? r->anchor->name : "",
1941 pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1942 }
1943
1944 path[len] = '\0';
1945
1946 return (0);
1947 }
1948
1949 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1950 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1951 int rs_num, int depth)
1952 {
1953 struct pfctl_rule *r;
1954 int error, len = strlen(path);
1955 int brace = 0;
1956
1957 pf->anchor = rs->anchor;
1958
1959 if (path[0])
1960 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1961 else
1962 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1963
1964 if (depth) {
1965 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1966 brace++;
1967 if (pf->opts & PF_OPT_VERBOSE)
1968 printf(" {\n");
1969 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1970 (error = pfctl_ruleset_trans(pf,
1971 path, rs->anchor, false))) {
1972 printf("pfctl_load_rulesets: "
1973 "pfctl_ruleset_trans %d\n", error);
1974 goto error;
1975 }
1976 } else if (pf->opts & PF_OPT_VERBOSE)
1977 printf("\n");
1978
1979 }
1980
1981 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1982 pfctl_optimize_ruleset(pf, rs);
1983
1984 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1985 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1986
1987 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
1988 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
1989 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
1990 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
1991
1992 if ((error = pfctl_load_rule(pf, path, r, depth)))
1993 goto error;
1994 if (r->anchor) {
1995 if ((error = pfctl_load_ruleset(pf, path,
1996 &r->anchor->ruleset, rs_num, depth + 1)))
1997 goto error;
1998 } else if (pf->opts & PF_OPT_VERBOSE)
1999 printf("\n");
2000 free(r);
2001 }
2002 if (brace && pf->opts & PF_OPT_VERBOSE) {
2003 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
2004 printf("}\n");
2005 }
2006 path[len] = '\0';
2007 return (0);
2008
2009 error:
2010 path[len] = '\0';
2011 return (error);
2012
2013 }
2014
2015 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)2016 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
2017 {
2018 u_int8_t rs_num = pf_get_ruleset_number(r->action);
2019 char *name;
2020 u_int32_t ticket;
2021 char anchor[PF_ANCHOR_NAME_SIZE];
2022 int len = strlen(path);
2023 int error;
2024 bool was_present;
2025
2026 /* set up anchor before adding to path for anchor_call */
2027 if ((pf->opts & PF_OPT_NOACTION) == 0)
2028 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
2029 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
2030 errx(1, "pfctl_load_rule: strlcpy");
2031
2032 if (r->anchor) {
2033 if (r->anchor->match) {
2034 if (path[0])
2035 snprintf(&path[len], MAXPATHLEN - len,
2036 "/%s", r->anchor->name);
2037 else
2038 snprintf(&path[len], MAXPATHLEN - len,
2039 "%s", r->anchor->name);
2040 name = r->anchor->name;
2041 } else
2042 name = r->anchor->path;
2043 } else
2044 name = "";
2045
2046 was_present = false;
2047 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2048 if (pfctl_add_pool(pf, &r->rpool, r->af))
2049 return (1);
2050 error = pfctl_add_rule_h(pf->h, r, anchor, name, ticket,
2051 pf->paddr.ticket);
2052 switch (error) {
2053 case 0:
2054 /* things worked, do nothing */
2055 break;
2056 case EEXIST:
2057 /* an identical rule is already present */
2058 was_present = true;
2059 break;
2060 default:
2061 errc(1, error, "DIOCADDRULE");
2062 }
2063 }
2064
2065 if (pf->opts & PF_OPT_VERBOSE) {
2066 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
2067 print_rule(r, name,
2068 pf->opts & PF_OPT_VERBOSE2,
2069 pf->opts & PF_OPT_NUMERIC);
2070 if (was_present)
2071 printf(" -- rule was already present");
2072 }
2073 path[len] = '\0';
2074 pfctl_clear_pool(&r->rpool);
2075 return (0);
2076 }
2077
2078 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)2079 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
2080 {
2081 if (altqsupport &&
2082 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
2083 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
2084 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2085 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
2086 if (errno == ENXIO)
2087 errx(1, "qtype not configured");
2088 else if (errno == ENODEV)
2089 errx(1, "%s: driver does not support "
2090 "altq", a->ifname);
2091 else
2092 err(1, "DIOCADDALTQ");
2093 }
2094 }
2095 pfaltq_store(&pf->paltq->altq);
2096 }
2097 return (0);
2098 }
2099
2100 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)2101 pfctl_rules(int dev, char *filename, int opts, int optimize,
2102 char *anchorname, struct pfr_buffer *trans)
2103 {
2104 #define ERR(x) do { warn(x); goto _error; } while(0)
2105 #define ERRX(x) do { warnx(x); goto _error; } while(0)
2106
2107 struct pfr_buffer *t, buf;
2108 struct pfioc_altq pa;
2109 struct pfctl pf;
2110 struct pfctl_ruleset *rs;
2111 struct pfctl_eth_ruleset *ethrs;
2112 struct pfr_table trs;
2113 char *path;
2114 int osize;
2115
2116 RB_INIT(&pf_anchors);
2117 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
2118 pf_init_ruleset(&pf_main_anchor.ruleset);
2119 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
2120
2121 memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor));
2122 pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset);
2123 pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor;
2124
2125 if (trans == NULL) {
2126 bzero(&buf, sizeof(buf));
2127 buf.pfrb_type = PFRB_TRANS;
2128 t = &buf;
2129 osize = 0;
2130 } else {
2131 t = trans;
2132 osize = t->pfrb_size;
2133 }
2134
2135 memset(&pa, 0, sizeof(pa));
2136 pa.version = PFIOC_ALTQ_VERSION;
2137 memset(&pf, 0, sizeof(pf));
2138 memset(&trs, 0, sizeof(trs));
2139 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2140 ERRX("pfctl_rules: calloc");
2141 if (strlcpy(trs.pfrt_anchor, anchorname,
2142 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
2143 ERRX("pfctl_rules: strlcpy");
2144 pf.dev = dev;
2145 pf.h = pfh;
2146 pf.opts = opts;
2147 pf.optimize = optimize;
2148 pf.loadopt = loadopt;
2149
2150 /* non-brace anchor, create without resolving the path */
2151 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
2152 ERRX("pfctl_rules: calloc");
2153 rs = &pf.anchor->ruleset;
2154 pf_init_ruleset(rs);
2155 rs->anchor = pf.anchor;
2156 if (strlcpy(pf.anchor->path, anchorname,
2157 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
2158 errx(1, "pfctl_rules: strlcpy");
2159 if (strlcpy(pf.anchor->name, anchorname,
2160 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
2161 errx(1, "pfctl_rules: strlcpy");
2162
2163
2164 pf.astack[0] = pf.anchor;
2165 pf.asd = 0;
2166 if (anchorname[0])
2167 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
2168 pf.paltq = &pa;
2169 pf.trans = t;
2170 pfctl_init_options(&pf);
2171
2172 /* Set up ethernet anchor */
2173 if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
2174 ERRX("pfctl_rules: calloc");
2175
2176 if (strlcpy(pf.eanchor->path, anchorname,
2177 sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
2178 errx(1, "pfctl_rules: strlcpy");
2179 if (strlcpy(pf.eanchor->name, anchorname,
2180 sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
2181 errx(1, "pfctl_rules: strlcpy");
2182
2183 ethrs = &pf.eanchor->ruleset;
2184 pf_init_eth_ruleset(ethrs);
2185 ethrs->anchor = pf.eanchor;
2186 pf.eastack[0] = pf.eanchor;
2187
2188 if ((opts & PF_OPT_NOACTION) == 0) {
2189 /*
2190 * XXX For the time being we need to open transactions for
2191 * the main ruleset before parsing, because tables are still
2192 * loaded at parse time.
2193 */
2194 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
2195 ERRX("pfctl_rules");
2196 if (pf.loadopt & PFCTL_FLAG_ETH)
2197 pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname);
2198 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
2199 pa.ticket =
2200 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
2201 if (pf.loadopt & PFCTL_FLAG_TABLE)
2202 pf.astack[0]->ruleset.tticket =
2203 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
2204 }
2205
2206 if (parse_config(filename, &pf) < 0) {
2207 if ((opts & PF_OPT_NOACTION) == 0)
2208 ERRX("Syntax error in config file: "
2209 "pf rules not loaded");
2210 else
2211 goto _error;
2212 }
2213 if (loadopt & PFCTL_FLAG_OPTION)
2214 pfctl_adjust_skip_ifaces(&pf);
2215
2216 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
2217 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
2218 (pf.loadopt & PFCTL_FLAG_ETH &&
2219 (pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) ||
2220 (pf.loadopt & PFCTL_FLAG_NAT &&
2221 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
2222 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
2223 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
2224 (pf.loadopt & PFCTL_FLAG_FILTER &&
2225 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
2226 if ((opts & PF_OPT_NOACTION) == 0)
2227 ERRX("Unable to load rules into kernel");
2228 else
2229 goto _error;
2230 }
2231
2232 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
2233 if (check_commit_altq(dev, opts) != 0)
2234 ERRX("errors in altq config");
2235
2236 /* process "load anchor" directives */
2237 if (!anchorname[0])
2238 if (pfctl_load_anchors(dev, &pf, t) == -1)
2239 ERRX("load anchors");
2240
2241 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
2242 if (!anchorname[0])
2243 if (pfctl_load_options(&pf))
2244 goto _error;
2245 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
2246 ERR("DIOCXCOMMIT");
2247 }
2248 free(path);
2249 return (0);
2250
2251 _error:
2252 if (trans == NULL) { /* main ruleset */
2253 if ((opts & PF_OPT_NOACTION) == 0)
2254 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
2255 err(1, "DIOCXROLLBACK");
2256 exit(1);
2257 } else { /* sub ruleset */
2258 free(path);
2259 return (-1);
2260 }
2261
2262 #undef ERR
2263 #undef ERRX
2264 }
2265
2266 FILE *
pfctl_fopen(const char * name,const char * mode)2267 pfctl_fopen(const char *name, const char *mode)
2268 {
2269 struct stat st;
2270 FILE *fp;
2271
2272 fp = fopen(name, mode);
2273 if (fp == NULL)
2274 return (NULL);
2275 if (fstat(fileno(fp), &st)) {
2276 fclose(fp);
2277 return (NULL);
2278 }
2279 if (S_ISDIR(st.st_mode)) {
2280 fclose(fp);
2281 errno = EISDIR;
2282 return (NULL);
2283 }
2284 return (fp);
2285 }
2286
2287 void
pfctl_init_options(struct pfctl * pf)2288 pfctl_init_options(struct pfctl *pf)
2289 {
2290
2291 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2292 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
2293 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2294 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2295 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
2296 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2297 pf->timeout[PFTM_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2298 pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
2299 pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2300 pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2301 pf->timeout[PFTM_SCTP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2302 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
2303 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
2304 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
2305 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
2306 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
2307 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
2308 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
2309 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
2310 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
2311 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
2312 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
2313 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
2314 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
2315 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
2316
2317 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
2318 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
2319 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
2320 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
2321
2322 pf->debug = PF_DEBUG_URGENT;
2323 pf->reassemble = 0;
2324
2325 pf->syncookies = false;
2326 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
2327 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
2328 }
2329
2330 int
pfctl_load_options(struct pfctl * pf)2331 pfctl_load_options(struct pfctl *pf)
2332 {
2333 int i, error = 0;
2334
2335 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2336 return (0);
2337
2338 /* load limits */
2339 for (i = 0; i < PF_LIMIT_MAX; i++) {
2340 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
2341 continue;
2342 if (pfctl_load_limit(pf, i, pf->limit[i]))
2343 error = 1;
2344 }
2345
2346 /*
2347 * If we've set the limit, but haven't explicitly set adaptive
2348 * timeouts, do it now with a start of 60% and end of 120%.
2349 */
2350 if (pf->limit_set[PF_LIMIT_STATES] &&
2351 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
2352 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
2353 pf->timeout[PFTM_ADAPTIVE_START] =
2354 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
2355 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
2356 pf->timeout[PFTM_ADAPTIVE_END] =
2357 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
2358 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
2359 }
2360
2361 /* load timeouts */
2362 for (i = 0; i < PFTM_MAX; i++) {
2363 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
2364 continue;
2365 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
2366 error = 1;
2367 }
2368
2369 /* load debug */
2370 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
2371 if (pfctl_load_debug(pf, pf->debug))
2372 error = 1;
2373
2374 /* load logif */
2375 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
2376 if (pfctl_load_logif(pf, pf->ifname))
2377 error = 1;
2378
2379 /* load hostid */
2380 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
2381 if (pfctl_load_hostid(pf, pf->hostid))
2382 error = 1;
2383
2384 /* load reassembly settings */
2385 if (!(pf->opts & PF_OPT_MERGE) || pf->reass_set)
2386 if (pfctl_load_reassembly(pf, pf->reassemble))
2387 error = 1;
2388
2389 /* load keepcounters */
2390 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
2391 error = 1;
2392
2393 /* load syncookies settings */
2394 if (pfctl_load_syncookies(pf, pf->syncookies))
2395 error = 1;
2396
2397 return (error);
2398 }
2399
2400 int
pfctl_apply_limit(struct pfctl * pf,const char * opt,unsigned int limit)2401 pfctl_apply_limit(struct pfctl *pf, const char *opt, unsigned int limit)
2402 {
2403 int i;
2404
2405
2406 for (i = 0; pf_limits[i].name; i++) {
2407 if (strcasecmp(opt, pf_limits[i].name) == 0) {
2408 pf->limit[pf_limits[i].index] = limit;
2409 pf->limit_set[pf_limits[i].index] = 1;
2410 break;
2411 }
2412 }
2413 if (pf_limits[i].name == NULL) {
2414 warnx("Bad pool name.");
2415 return (1);
2416 }
2417
2418 if (pf->opts & PF_OPT_VERBOSE)
2419 printf("set limit %s %d\n", opt, limit);
2420
2421 return (0);
2422 }
2423
2424 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)2425 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
2426 {
2427 if (pfctl_set_limit(pf->h, index, limit)) {
2428 if (errno == EBUSY)
2429 warnx("Current pool size exceeds requested hard limit");
2430 else
2431 warnx("DIOCSETLIMIT");
2432 return (1);
2433 }
2434 return (0);
2435 }
2436
2437 int
pfctl_apply_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)2438 pfctl_apply_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
2439 {
2440 int i;
2441
2442 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2443 return (0);
2444
2445 for (i = 0; pf_timeouts[i].name; i++) {
2446 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2447 pf->timeout[pf_timeouts[i].timeout] = seconds;
2448 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2449 break;
2450 }
2451 }
2452
2453 if (pf_timeouts[i].name == NULL) {
2454 warnx("Bad timeout name.");
2455 return (1);
2456 }
2457
2458
2459 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2460 printf("set timeout %s %d\n", opt, seconds);
2461
2462 return (0);
2463 }
2464
2465 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2466 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2467 {
2468 if (pfctl_set_timeout(pf->h, timeout, seconds)) {
2469 warnx("DIOCSETTIMEOUT");
2470 return (1);
2471 }
2472 return (0);
2473 }
2474
2475 int
pfctl_set_reassembly(struct pfctl * pf,int on,int nodf)2476 pfctl_set_reassembly(struct pfctl *pf, int on, int nodf)
2477 {
2478 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2479 return (0);
2480
2481 pf->reass_set = 1;
2482 if (on) {
2483 pf->reassemble = PF_REASS_ENABLED;
2484 if (nodf)
2485 pf->reassemble |= PF_REASS_NODF;
2486 } else {
2487 pf->reassemble = 0;
2488 }
2489
2490 if (pf->opts & PF_OPT_VERBOSE)
2491 printf("set reassemble %s %s\n", on ? "yes" : "no",
2492 nodf ? "no-df" : "");
2493
2494 return (0);
2495 }
2496
2497 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2498 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2499 {
2500 const struct pf_hint *hint;
2501 int i, r;
2502
2503 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2504 return (0);
2505
2506 for (i = 0; pf_hints[i].name; i++)
2507 if (strcasecmp(opt, pf_hints[i].name) == 0)
2508 break;
2509
2510 hint = pf_hints[i].hint;
2511 if (hint == NULL) {
2512 warnx("invalid state timeouts optimization");
2513 return (1);
2514 }
2515
2516 for (i = 0; hint[i].name; i++)
2517 if ((r = pfctl_apply_timeout(pf, hint[i].name,
2518 hint[i].timeout, 1)))
2519 return (r);
2520
2521 if (pf->opts & PF_OPT_VERBOSE)
2522 printf("set optimization %s\n", opt);
2523
2524 return (0);
2525 }
2526
2527 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2528 pfctl_set_logif(struct pfctl *pf, char *ifname)
2529 {
2530
2531 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2532 return (0);
2533
2534 if (!strcmp(ifname, "none")) {
2535 free(pf->ifname);
2536 pf->ifname = NULL;
2537 } else {
2538 pf->ifname = strdup(ifname);
2539 if (!pf->ifname)
2540 errx(1, "pfctl_set_logif: strdup");
2541 }
2542 pf->ifname_set = 1;
2543
2544 if (pf->opts & PF_OPT_VERBOSE)
2545 printf("set loginterface %s\n", ifname);
2546
2547 return (0);
2548 }
2549
2550 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2551 pfctl_load_logif(struct pfctl *pf, char *ifname)
2552 {
2553 if (ifname != NULL && strlen(ifname) >= IFNAMSIZ) {
2554 warnx("pfctl_load_logif: strlcpy");
2555 return (1);
2556 }
2557 return (pfctl_set_statusif(pfh, ifname ? ifname : ""));
2558 }
2559
2560 int
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2561 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2562 {
2563 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2564 return (0);
2565
2566 HTONL(hostid);
2567
2568 pf->hostid = hostid;
2569 pf->hostid_set = 1;
2570
2571 if (pf->opts & PF_OPT_VERBOSE)
2572 printf("set hostid 0x%08x\n", ntohl(hostid));
2573
2574 return (0);
2575 }
2576
2577 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2578 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2579 {
2580 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2581 warnx("DIOCSETHOSTID");
2582 return (1);
2583 }
2584 return (0);
2585 }
2586
2587 int
pfctl_load_reassembly(struct pfctl * pf,u_int32_t reassembly)2588 pfctl_load_reassembly(struct pfctl *pf, u_int32_t reassembly)
2589 {
2590 if (ioctl(dev, DIOCSETREASS, &reassembly)) {
2591 warnx("DIOCSETREASS");
2592 return (1);
2593 }
2594 return (0);
2595 }
2596
2597 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2598 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2599 {
2600 struct pfctl_syncookies cookies;
2601
2602 bzero(&cookies, sizeof(cookies));
2603
2604 cookies.mode = val;
2605 cookies.lowwater = pf->syncookieswat[0];
2606 cookies.highwater = pf->syncookieswat[1];
2607
2608 if (pfctl_set_syncookies(dev, &cookies)) {
2609 warnx("DIOCSETSYNCOOKIES");
2610 return (1);
2611 }
2612 return (0);
2613 }
2614
2615 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2616 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2617 {
2618 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2619 warnx("syncookies start/end only apply to adaptive");
2620 return (1);
2621 }
2622 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2623 if (!w->hi)
2624 w->hi = PF_SYNCOOKIES_HIWATPCT;
2625 if (!w->lo)
2626 w->lo = w->hi / 2;
2627 if (w->lo >= w->hi) {
2628 warnx("start must be higher than end");
2629 return (1);
2630 }
2631 pf->syncookieswat[0] = w->lo;
2632 pf->syncookieswat[1] = w->hi;
2633 pf->syncookieswat_set = 1;
2634 }
2635
2636 if (pf->opts & PF_OPT_VERBOSE) {
2637 if (val == PF_SYNCOOKIES_NEVER)
2638 printf("set syncookies never\n");
2639 else if (val == PF_SYNCOOKIES_ALWAYS)
2640 printf("set syncookies always\n");
2641 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2642 if (pf->syncookieswat_set)
2643 printf("set syncookies adaptive (start %u%%, "
2644 "end %u%%)\n", pf->syncookieswat[1],
2645 pf->syncookieswat[0]);
2646 else
2647 printf("set syncookies adaptive\n");
2648 } else { /* cannot happen */
2649 warnx("king bula ate all syncookies");
2650 return (1);
2651 }
2652 }
2653
2654 pf->syncookies = val;
2655 return (0);
2656 }
2657
2658 int
pfctl_do_set_debug(struct pfctl * pf,char * d)2659 pfctl_do_set_debug(struct pfctl *pf, char *d)
2660 {
2661 u_int32_t level;
2662 int ret;
2663
2664 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2665 return (0);
2666
2667 if (!strcmp(d, "none"))
2668 pf->debug = PF_DEBUG_NONE;
2669 else if (!strcmp(d, "urgent"))
2670 pf->debug = PF_DEBUG_URGENT;
2671 else if (!strcmp(d, "misc"))
2672 pf->debug = PF_DEBUG_MISC;
2673 else if (!strcmp(d, "loud"))
2674 pf->debug = PF_DEBUG_NOISY;
2675 else {
2676 warnx("unknown debug level \"%s\"", d);
2677 return (-1);
2678 }
2679
2680 pf->debug_set = 1;
2681 level = pf->debug;
2682
2683 if ((pf->opts & PF_OPT_NOACTION) == 0)
2684 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2685 errc(1, ret, "DIOCSETDEBUG");
2686
2687 if (pf->opts & PF_OPT_VERBOSE)
2688 printf("set debug %s\n", d);
2689
2690 return (0);
2691 }
2692
2693 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2694 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2695 {
2696 if (pfctl_set_debug(pf->h, level)) {
2697 warnx("DIOCSETDEBUG");
2698 return (1);
2699 }
2700 return (0);
2701 }
2702
2703 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2704 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2705 {
2706 struct pfioc_iface pi;
2707 struct node_host *h = NULL, *n = NULL;
2708
2709 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2710 return (0);
2711
2712 bzero(&pi, sizeof(pi));
2713
2714 pi.pfiio_flags = flags;
2715
2716 /* Make sure our cache matches the kernel. If we set or clear the flag
2717 * for a group this applies to all members. */
2718 h = ifa_grouplookup(ifname, 0);
2719 for (n = h; n != NULL; n = n->next)
2720 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2721
2722 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2723 sizeof(pi.pfiio_name))
2724 errx(1, "pfctl_set_interface_flags: strlcpy");
2725
2726 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2727 if (how == 0) {
2728 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2729 err(1, "DIOCCLRIFFLAG");
2730 } else {
2731 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2732 err(1, "DIOCSETIFFLAG");
2733 pfctl_check_skip_ifaces(ifname);
2734 }
2735 }
2736 return (0);
2737 }
2738
2739 void
pfctl_debug(int dev,u_int32_t level,int opts)2740 pfctl_debug(int dev, u_int32_t level, int opts)
2741 {
2742 int ret;
2743
2744 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2745 errc(1, ret, "DIOCSETDEBUG");
2746 if ((opts & PF_OPT_QUIET) == 0) {
2747 fprintf(stderr, "debug level set to '");
2748 switch (level) {
2749 case PF_DEBUG_NONE:
2750 fprintf(stderr, "none");
2751 break;
2752 case PF_DEBUG_URGENT:
2753 fprintf(stderr, "urgent");
2754 break;
2755 case PF_DEBUG_MISC:
2756 fprintf(stderr, "misc");
2757 break;
2758 case PF_DEBUG_NOISY:
2759 fprintf(stderr, "loud");
2760 break;
2761 default:
2762 fprintf(stderr, "<invalid>");
2763 break;
2764 }
2765 fprintf(stderr, "'\n");
2766 }
2767 }
2768
2769 int
pfctl_test_altqsupport(int dev,int opts)2770 pfctl_test_altqsupport(int dev, int opts)
2771 {
2772 struct pfioc_altq pa;
2773
2774 pa.version = PFIOC_ALTQ_VERSION;
2775 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2776 if (errno == ENODEV) {
2777 if (opts & PF_OPT_VERBOSE)
2778 fprintf(stderr, "No ALTQ support in kernel\n"
2779 "ALTQ related functions disabled\n");
2780 return (0);
2781 } else
2782 err(1, "DIOCGETALTQS");
2783 }
2784 return (1);
2785 }
2786
2787 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2788 pfctl_show_anchors(int dev, int opts, char *anchorname)
2789 {
2790 struct pfioc_ruleset pr;
2791 u_int32_t mnr, nr;
2792 int ret;
2793
2794 memset(&pr, 0, sizeof(pr));
2795 if ((ret = pfctl_get_rulesets(pfh, anchorname, &mnr)) != 0) {
2796 if (ret == EINVAL)
2797 fprintf(stderr, "Anchor '%s' not found.\n",
2798 anchorname);
2799 else
2800 errc(1, ret, "DIOCGETRULESETS");
2801 return (-1);
2802 }
2803 for (nr = 0; nr < mnr; ++nr) {
2804 char sub[MAXPATHLEN];
2805
2806 if ((ret = pfctl_get_ruleset(pfh, anchorname, nr, &pr)) != 0)
2807 errc(1, ret, "DIOCGETRULESET");
2808 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2809 continue;
2810 sub[0] = 0;
2811 if (pr.path[0]) {
2812 strlcat(sub, pr.path, sizeof(sub));
2813 strlcat(sub, "/", sizeof(sub));
2814 }
2815 strlcat(sub, pr.name, sizeof(sub));
2816 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2817 printf(" %s\n", sub);
2818 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2819 return (-1);
2820 }
2821 return (0);
2822 }
2823
2824 int
pfctl_show_eth_anchors(int dev,int opts,char * anchorname)2825 pfctl_show_eth_anchors(int dev, int opts, char *anchorname)
2826 {
2827 struct pfctl_eth_rulesets_info ri;
2828 struct pfctl_eth_ruleset_info rs;
2829 int ret;
2830
2831 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) {
2832 if (ret == ENOENT)
2833 fprintf(stderr, "Anchor '%s' not found.\n",
2834 anchorname);
2835 else
2836 errc(1, ret, "DIOCGETETHRULESETS");
2837 return (-1);
2838 }
2839
2840 for (int nr = 0; nr < ri.nr; nr++) {
2841 char sub[MAXPATHLEN];
2842
2843 if ((ret = pfctl_get_eth_ruleset(dev, anchorname, nr, &rs)) != 0)
2844 errc(1, ret, "DIOCGETETHRULESET");
2845
2846 if (!strcmp(rs.name, PF_RESERVED_ANCHOR))
2847 continue;
2848 sub[0] = 0;
2849 if (rs.path[0]) {
2850 strlcat(sub, rs.path, sizeof(sub));
2851 strlcat(sub, "/", sizeof(sub));
2852 }
2853 strlcat(sub, rs.name, sizeof(sub));
2854 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2855 printf(" %s\n", sub);
2856 if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub))
2857 return (-1);
2858 }
2859 return (0);
2860 }
2861
2862 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2863 pfctl_lookup_option(char *cmd, const char * const *list)
2864 {
2865 if (cmd != NULL && *cmd)
2866 for (; *list; list++)
2867 if (!strncmp(cmd, *list, strlen(cmd)))
2868 return (*list);
2869 return (NULL);
2870 }
2871
2872 int
main(int argc,char * argv[])2873 main(int argc, char *argv[])
2874 {
2875 int error = 0;
2876 int ch;
2877 int mode = O_RDONLY;
2878 int opts = 0;
2879 int optimize = PF_OPTIMIZE_BASIC;
2880 char anchorname[MAXPATHLEN];
2881 char *path;
2882
2883 if (argc < 2)
2884 usage();
2885
2886 while ((ch = getopt(argc, argv,
2887 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2888 switch (ch) {
2889 case 'a':
2890 anchoropt = optarg;
2891 break;
2892 case 'd':
2893 opts |= PF_OPT_DISABLE;
2894 mode = O_RDWR;
2895 break;
2896 case 'D':
2897 if (pfctl_cmdline_symset(optarg) < 0)
2898 warnx("could not parse macro definition %s",
2899 optarg);
2900 break;
2901 case 'e':
2902 opts |= PF_OPT_ENABLE;
2903 mode = O_RDWR;
2904 break;
2905 case 'q':
2906 opts |= PF_OPT_QUIET;
2907 break;
2908 case 'F':
2909 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2910 if (clearopt == NULL) {
2911 warnx("Unknown flush modifier '%s'", optarg);
2912 usage();
2913 }
2914 mode = O_RDWR;
2915 break;
2916 case 'i':
2917 ifaceopt = optarg;
2918 break;
2919 case 'k':
2920 if (state_killers >= 2) {
2921 warnx("can only specify -k twice");
2922 usage();
2923 /* NOTREACHED */
2924 }
2925 state_kill[state_killers++] = optarg;
2926 mode = O_RDWR;
2927 break;
2928 case 'K':
2929 if (src_node_killers >= 2) {
2930 warnx("can only specify -K twice");
2931 usage();
2932 /* NOTREACHED */
2933 }
2934 src_node_kill[src_node_killers++] = optarg;
2935 mode = O_RDWR;
2936 break;
2937 case 'm':
2938 opts |= PF_OPT_MERGE;
2939 break;
2940 case 'M':
2941 opts |= PF_OPT_KILLMATCH;
2942 break;
2943 case 'n':
2944 opts |= PF_OPT_NOACTION;
2945 break;
2946 case 'N':
2947 loadopt |= PFCTL_FLAG_NAT;
2948 break;
2949 case 'r':
2950 opts |= PF_OPT_USEDNS;
2951 break;
2952 case 'f':
2953 rulesopt = optarg;
2954 mode = O_RDWR;
2955 break;
2956 case 'g':
2957 opts |= PF_OPT_DEBUG;
2958 break;
2959 case 'A':
2960 loadopt |= PFCTL_FLAG_ALTQ;
2961 break;
2962 case 'R':
2963 loadopt |= PFCTL_FLAG_FILTER;
2964 break;
2965 case 'o':
2966 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2967 if (optiopt == NULL) {
2968 warnx("Unknown optimization '%s'", optarg);
2969 usage();
2970 }
2971 opts |= PF_OPT_OPTIMIZE;
2972 break;
2973 case 'O':
2974 loadopt |= PFCTL_FLAG_OPTION;
2975 break;
2976 case 'p':
2977 pf_device = optarg;
2978 break;
2979 case 'P':
2980 opts |= PF_OPT_NUMERIC;
2981 break;
2982 case 's':
2983 showopt = pfctl_lookup_option(optarg, showopt_list);
2984 if (showopt == NULL) {
2985 warnx("Unknown show modifier '%s'", optarg);
2986 usage();
2987 }
2988 break;
2989 case 't':
2990 tableopt = optarg;
2991 break;
2992 case 'T':
2993 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2994 if (tblcmdopt == NULL) {
2995 warnx("Unknown table command '%s'", optarg);
2996 usage();
2997 }
2998 break;
2999 case 'v':
3000 if (opts & PF_OPT_VERBOSE)
3001 opts |= PF_OPT_VERBOSE2;
3002 opts |= PF_OPT_VERBOSE;
3003 break;
3004 case 'x':
3005 debugopt = pfctl_lookup_option(optarg, debugopt_list);
3006 if (debugopt == NULL) {
3007 warnx("Unknown debug level '%s'", optarg);
3008 usage();
3009 }
3010 mode = O_RDWR;
3011 break;
3012 case 'z':
3013 opts |= PF_OPT_CLRRULECTRS;
3014 mode = O_RDWR;
3015 break;
3016 case 'h':
3017 /* FALLTHROUGH */
3018 default:
3019 usage();
3020 /* NOTREACHED */
3021 }
3022 }
3023
3024 if (tblcmdopt != NULL) {
3025 argc -= optind;
3026 argv += optind;
3027 ch = *tblcmdopt;
3028 if (ch == 'l') {
3029 loadopt |= PFCTL_FLAG_TABLE;
3030 tblcmdopt = NULL;
3031 } else
3032 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
3033 } else if (argc != optind) {
3034 warnx("unknown command line argument: %s ...", argv[optind]);
3035 usage();
3036 /* NOTREACHED */
3037 }
3038 if (loadopt == 0)
3039 loadopt = ~0;
3040
3041 if ((path = calloc(1, MAXPATHLEN)) == NULL)
3042 errx(1, "pfctl: calloc");
3043 memset(anchorname, 0, sizeof(anchorname));
3044 if (anchoropt != NULL) {
3045 int len = strlen(anchoropt);
3046
3047 if (len >= 1 && anchoropt[len - 1] == '*') {
3048 if (len >= 2 && anchoropt[len - 2] == '/')
3049 anchoropt[len - 2] = '\0';
3050 else
3051 anchoropt[len - 1] = '\0';
3052 opts |= PF_OPT_RECURSE;
3053 }
3054 if (strlcpy(anchorname, anchoropt,
3055 sizeof(anchorname)) >= sizeof(anchorname))
3056 errx(1, "anchor name '%s' too long",
3057 anchoropt);
3058 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH;
3059 }
3060
3061 if ((opts & PF_OPT_NOACTION) == 0) {
3062 dev = open(pf_device, mode);
3063 if (dev == -1)
3064 err(1, "%s", pf_device);
3065 altqsupport = pfctl_test_altqsupport(dev, opts);
3066 } else {
3067 dev = open(pf_device, O_RDONLY);
3068 if (dev >= 0)
3069 opts |= PF_OPT_DUMMYACTION;
3070 /* turn off options */
3071 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
3072 clearopt = showopt = debugopt = NULL;
3073 #if !defined(ENABLE_ALTQ)
3074 altqsupport = 0;
3075 #else
3076 altqsupport = 1;
3077 #endif
3078 }
3079 pfh = pfctl_open(pf_device);
3080 if (pfh == NULL)
3081 err(1, "Failed to open netlink");
3082
3083 if (opts & PF_OPT_DISABLE)
3084 if (pfctl_disable(dev, opts))
3085 error = 1;
3086
3087 if (showopt != NULL) {
3088 switch (*showopt) {
3089 case 'A':
3090 pfctl_show_anchors(dev, opts, anchorname);
3091 if (opts & PF_OPT_VERBOSE2)
3092 printf("Ethernet:\n");
3093 pfctl_show_eth_anchors(dev, opts, anchorname);
3094 break;
3095 case 'r':
3096 pfctl_load_fingerprints(dev, opts);
3097 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
3098 anchorname, 0, 0);
3099 break;
3100 case 'l':
3101 pfctl_load_fingerprints(dev, opts);
3102 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
3103 anchorname, 0, 0);
3104 break;
3105 case 'n':
3106 pfctl_load_fingerprints(dev, opts);
3107 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3108 break;
3109 case 'q':
3110 pfctl_show_altq(dev, ifaceopt, opts,
3111 opts & PF_OPT_VERBOSE2);
3112 break;
3113 case 's':
3114 pfctl_show_states(dev, ifaceopt, opts);
3115 break;
3116 case 'S':
3117 pfctl_show_src_nodes(dev, opts);
3118 break;
3119 case 'i':
3120 pfctl_show_status(dev, opts);
3121 break;
3122 case 'R':
3123 error = pfctl_show_running(dev);
3124 break;
3125 case 't':
3126 pfctl_show_timeouts(dev, opts);
3127 break;
3128 case 'm':
3129 pfctl_show_limits(dev, opts);
3130 break;
3131 case 'e':
3132 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3133 0);
3134 break;
3135 case 'a':
3136 opts |= PF_OPT_SHOWALL;
3137 pfctl_load_fingerprints(dev, opts);
3138
3139 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3140 0);
3141
3142 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3143 pfctl_show_rules(dev, path, opts, 0, anchorname, 0, 0);
3144 pfctl_show_altq(dev, ifaceopt, opts, 0);
3145 pfctl_show_states(dev, ifaceopt, opts);
3146 pfctl_show_src_nodes(dev, opts);
3147 pfctl_show_status(dev, opts);
3148 pfctl_show_rules(dev, path, opts, 1, anchorname, 0, 0);
3149 pfctl_show_timeouts(dev, opts);
3150 pfctl_show_limits(dev, opts);
3151 pfctl_show_tables(anchorname, opts);
3152 pfctl_show_fingerprints(opts);
3153 break;
3154 case 'T':
3155 pfctl_show_tables(anchorname, opts);
3156 break;
3157 case 'o':
3158 pfctl_load_fingerprints(dev, opts);
3159 pfctl_show_fingerprints(opts);
3160 break;
3161 case 'I':
3162 pfctl_show_ifaces(ifaceopt, opts);
3163 break;
3164 case 'c':
3165 pfctl_show_creators(opts);
3166 break;
3167 }
3168 }
3169
3170 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) {
3171 pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3172 anchorname, 0, 0);
3173 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3174 anchorname, 0, 0);
3175 }
3176
3177 if (clearopt != NULL) {
3178 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3179 errx(1, "anchor names beginning with '_' cannot "
3180 "be modified from the command line");
3181
3182 switch (*clearopt) {
3183 case 'e':
3184 pfctl_flush_eth_rules(dev, opts, anchorname);
3185 break;
3186 case 'r':
3187 pfctl_flush_rules(dev, opts, anchorname);
3188 break;
3189 case 'n':
3190 pfctl_flush_nat(dev, opts, anchorname);
3191 break;
3192 case 'q':
3193 pfctl_clear_altq(dev, opts);
3194 break;
3195 case 's':
3196 pfctl_clear_iface_states(dev, ifaceopt, opts);
3197 break;
3198 case 'S':
3199 pfctl_clear_src_nodes(dev, opts);
3200 break;
3201 case 'i':
3202 pfctl_clear_stats(pfh, opts);
3203 break;
3204 case 'a':
3205 pfctl_flush_eth_rules(dev, opts, anchorname);
3206 pfctl_flush_rules(dev, opts, anchorname);
3207 pfctl_flush_nat(dev, opts, anchorname);
3208 pfctl_clear_tables(anchorname, opts);
3209 if (!*anchorname) {
3210 pfctl_clear_altq(dev, opts);
3211 pfctl_clear_iface_states(dev, ifaceopt, opts);
3212 pfctl_clear_src_nodes(dev, opts);
3213 pfctl_clear_stats(pfh, opts);
3214 pfctl_clear_fingerprints(dev, opts);
3215 pfctl_clear_interface_flags(dev, opts);
3216 }
3217 break;
3218 case 'o':
3219 pfctl_clear_fingerprints(dev, opts);
3220 break;
3221 case 'T':
3222 pfctl_clear_tables(anchorname, opts);
3223 break;
3224 }
3225 }
3226 if (state_killers) {
3227 if (!strcmp(state_kill[0], "label"))
3228 pfctl_label_kill_states(dev, ifaceopt, opts);
3229 else if (!strcmp(state_kill[0], "id"))
3230 pfctl_id_kill_states(dev, ifaceopt, opts);
3231 else if (!strcmp(state_kill[0], "gateway"))
3232 pfctl_gateway_kill_states(dev, ifaceopt, opts);
3233 else
3234 pfctl_net_kill_states(dev, ifaceopt, opts);
3235 }
3236
3237 if (src_node_killers)
3238 pfctl_kill_src_nodes(dev, ifaceopt, opts);
3239
3240 if (tblcmdopt != NULL) {
3241 error = pfctl_command_tables(argc, argv, tableopt,
3242 tblcmdopt, rulesopt, anchorname, opts);
3243 rulesopt = NULL;
3244 }
3245 if (optiopt != NULL) {
3246 switch (*optiopt) {
3247 case 'n':
3248 optimize = 0;
3249 break;
3250 case 'b':
3251 optimize |= PF_OPTIMIZE_BASIC;
3252 break;
3253 case 'o':
3254 case 'p':
3255 optimize |= PF_OPTIMIZE_PROFILE;
3256 break;
3257 }
3258 }
3259
3260 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
3261 !anchorname[0] && !(opts & PF_OPT_NOACTION))
3262 if (pfctl_get_skip_ifaces())
3263 error = 1;
3264
3265 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
3266 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
3267 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
3268 error = 1;
3269
3270 if (rulesopt != NULL) {
3271 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3272 errx(1, "anchor names beginning with '_' cannot "
3273 "be modified from the command line");
3274 if (pfctl_rules(dev, rulesopt, opts, optimize,
3275 anchorname, NULL))
3276 error = 1;
3277 else if (!(opts & PF_OPT_NOACTION) &&
3278 (loadopt & PFCTL_FLAG_TABLE))
3279 warn_namespace_collision(NULL);
3280 }
3281
3282 if (opts & PF_OPT_ENABLE)
3283 if (pfctl_enable(dev, opts))
3284 error = 1;
3285
3286 if (debugopt != NULL) {
3287 switch (*debugopt) {
3288 case 'n':
3289 pfctl_debug(dev, PF_DEBUG_NONE, opts);
3290 break;
3291 case 'u':
3292 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
3293 break;
3294 case 'm':
3295 pfctl_debug(dev, PF_DEBUG_MISC, opts);
3296 break;
3297 case 'l':
3298 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
3299 break;
3300 }
3301 }
3302
3303 exit(error);
3304 }
3305