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