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 const 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, const 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", "reset", 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,const char * anchorname)948 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
949 u_int32_t ticket, int r_action, const 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 for (nr = 0; nr < mnr; ++nr) {
1259 prs.nr = nr;
1260 if (ioctl(dev, DIOCGETRULESET, &prs))
1261 err(1, "DIOCGETRULESET");
1262 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1263 printf("anchor \"%s\" all {\n", prs.name);
1264 pfctl_show_rules(dev, npath, opts,
1265 format, prs.name, depth + 1, 0);
1266 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1267 printf("}\n");
1268 }
1269 path[len] = '\0';
1270 return (0);
1271 }
1272
1273 if (opts & PF_OPT_SHOWALL) {
1274 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1275 if (ret != 0) {
1276 warn("DIOCGETRULES");
1277 goto error;
1278 }
1279 header++;
1280 }
1281 ret = pfctl_get_rules_info(dev, &ri, PF_SCRUB, path);
1282 if (ret != 0) {
1283 warn("DIOCGETRULES");
1284 goto error;
1285 }
1286 if (opts & PF_OPT_SHOWALL) {
1287 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1288 pfctl_print_title("FILTER RULES:");
1289 else if (format == PFCTL_SHOW_LABELS && labels)
1290 pfctl_print_title("LABEL COUNTERS:");
1291 }
1292
1293 for (nr = 0; nr < ri.nr; ++nr) {
1294 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_SCRUB,
1295 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1296 warn("DIOCGETRULENV");
1297 goto error;
1298 }
1299
1300 if (pfctl_get_pool(dev, &rule.rpool,
1301 nr, ri.ticket, PF_SCRUB, path) != 0)
1302 goto error;
1303
1304 switch (format) {
1305 case PFCTL_SHOW_LABELS:
1306 break;
1307 case PFCTL_SHOW_RULES:
1308 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1309 labels = 1;
1310 print_rule(&rule, anchor_call, rule_numbers, numeric);
1311 printf("\n");
1312 pfctl_print_rule_counters(&rule, opts);
1313 break;
1314 case PFCTL_SHOW_NOTHING:
1315 break;
1316 }
1317 pfctl_clear_pool(&rule.rpool);
1318 }
1319 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path);
1320 if (ret != 0) {
1321 warn("DIOCGETRULES");
1322 goto error;
1323 }
1324 for (nr = 0; nr < ri.nr; ++nr) {
1325 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_PASS,
1326 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) {
1327 warn("DIOCGETRULE");
1328 goto error;
1329 }
1330
1331 if (pfctl_get_pool(dev, &rule.rpool,
1332 nr, ri.ticket, PF_PASS, path) != 0)
1333 goto error;
1334
1335 switch (format) {
1336 case PFCTL_SHOW_LABELS: {
1337 bool show = false;
1338 int i = 0;
1339
1340 while (rule.label[i][0]) {
1341 printf("%s ", rule.label[i++]);
1342 show = true;
1343 }
1344
1345 if (show) {
1346 printf("%llu %llu %llu %llu"
1347 " %llu %llu %llu %ju\n",
1348 (unsigned long long)rule.evaluations,
1349 (unsigned long long)(rule.packets[0] +
1350 rule.packets[1]),
1351 (unsigned long long)(rule.bytes[0] +
1352 rule.bytes[1]),
1353 (unsigned long long)rule.packets[0],
1354 (unsigned long long)rule.bytes[0],
1355 (unsigned long long)rule.packets[1],
1356 (unsigned long long)rule.bytes[1],
1357 (uintmax_t)rule.states_tot);
1358 }
1359 break;
1360 }
1361 case PFCTL_SHOW_RULES:
1362 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1363 labels = 1;
1364 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1365 print_rule(&rule, anchor_call, rule_numbers, numeric);
1366
1367 /*
1368 * If this is a 'unnamed' brace notation
1369 * anchor, OR the user has explicitly requested
1370 * recursion, print it recursively.
1371 */
1372 if (anchor_call[0] &&
1373 (((p = strrchr(anchor_call, '/')) ?
1374 p[1] == '_' : anchor_call[0] == '_') ||
1375 opts & PF_OPT_RECURSE)) {
1376 printf(" {\n");
1377 pfctl_print_rule_counters(&rule, opts);
1378 pfctl_show_rules(dev, npath, opts, format,
1379 anchor_call, depth + 1,
1380 rule.anchor_wildcard);
1381 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1382 printf("}\n");
1383 } else {
1384 printf("\n");
1385 pfctl_print_rule_counters(&rule, opts);
1386 }
1387 break;
1388 case PFCTL_SHOW_NOTHING:
1389 break;
1390 }
1391 pfctl_clear_pool(&rule.rpool);
1392 }
1393
1394 error:
1395 path[len] = '\0';
1396 return (ret);
1397 }
1398
1399 int
pfctl_show_nat(int dev,const char * path,int opts,char * anchorname,int depth,int wildcard)1400 pfctl_show_nat(int dev, const char *path, int opts, char *anchorname, int depth,
1401 int wildcard)
1402 {
1403 struct pfctl_rules_info ri;
1404 struct pfctl_rule rule;
1405 char anchor_call[MAXPATHLEN];
1406 u_int32_t nr;
1407 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1408 int i, dotitle = opts & PF_OPT_SHOWALL;
1409 int ret;
1410 int len = strlen(path);
1411 char *npath, *p;
1412
1413 /*
1414 * Truncate a trailing / and * on an anchorname before searching for
1415 * the ruleset, this is syntactic sugar that doesn't actually make it
1416 * to the kernel.
1417 */
1418 if ((p = strrchr(anchorname, '/')) != NULL &&
1419 p[1] == '*' && p[2] == '\0') {
1420 p[0] = '\0';
1421 }
1422
1423 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1424 errx(1, "pfctl_rules: calloc");
1425
1426 if (anchorname[0] == '/') {
1427 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1428 } else {
1429 snprintf(npath, MAXPATHLEN, "%s", path);
1430 if (npath[0])
1431 snprintf(&npath[len], MAXPATHLEN - len, "/%s", anchorname);
1432 else
1433 snprintf(&npath[len], MAXPATHLEN - len, "%s", anchorname);
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 for (nr = 0; nr < mnr; ++nr) {
1455 prs.nr = nr;
1456 if (ioctl(dev, DIOCGETRULESET, &prs))
1457 err(1, "DIOCGETRULESET");
1458 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1459 printf("nat-anchor \"%s\" all {\n", prs.name);
1460 pfctl_show_nat(dev, npath, opts,
1461 prs.name, depth + 1, 0);
1462 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1463 printf("}\n");
1464 }
1465 npath[len] = '\0';
1466 return (0);
1467 }
1468
1469 for (i = 0; i < 3; i++) {
1470 ret = pfctl_get_rules_info(dev, &ri, nattype[i], npath);
1471 if (ret != 0) {
1472 warn("DIOCGETRULES");
1473 return (-1);
1474 }
1475 for (nr = 0; nr < ri.nr; ++nr) {
1476 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1477
1478 if (pfctl_get_rule(dev, nr, ri.ticket, npath,
1479 nattype[i], &rule, anchor_call)) {
1480 warn("DIOCGETRULE");
1481 return (-1);
1482 }
1483 if (pfctl_get_pool(dev, &rule.rpool, nr,
1484 ri.ticket, nattype[i], npath) != 0)
1485 return (-1);
1486
1487 if (dotitle) {
1488 pfctl_print_title("TRANSLATION RULES:");
1489 dotitle = 0;
1490 }
1491 print_rule(&rule, anchor_call,
1492 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1493 if (anchor_call[0] &&
1494 (((p = strrchr(anchor_call, '/')) ?
1495 p[1] == '_' : anchor_call[0] == '_') ||
1496 opts & PF_OPT_RECURSE)) {
1497 printf(" {\n");
1498 pfctl_print_rule_counters(&rule, opts);
1499 pfctl_show_nat(dev, npath, opts, anchor_call,
1500 depth + 1, rule.anchor_wildcard);
1501 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1502 printf("}\n");
1503 } else {
1504 printf("\n");
1505 pfctl_print_rule_counters(&rule, opts);
1506 }
1507 }
1508 }
1509 return (0);
1510 }
1511
1512 int
pfctl_show_src_nodes(int dev,int opts)1513 pfctl_show_src_nodes(int dev, int opts)
1514 {
1515 struct pfioc_src_nodes psn;
1516 struct pf_src_node *p;
1517 char *inbuf = NULL, *newinbuf = NULL;
1518 unsigned int len = 0;
1519 int i;
1520
1521 memset(&psn, 0, sizeof(psn));
1522 for (;;) {
1523 psn.psn_len = len;
1524 if (len) {
1525 newinbuf = realloc(inbuf, len);
1526 if (newinbuf == NULL)
1527 err(1, "realloc");
1528 psn.psn_buf = inbuf = newinbuf;
1529 }
1530 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
1531 warn("DIOCGETSRCNODES");
1532 free(inbuf);
1533 return (-1);
1534 }
1535 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
1536 break;
1537 if (len == 0 && psn.psn_len == 0)
1538 goto done;
1539 if (len == 0 && psn.psn_len != 0)
1540 len = psn.psn_len;
1541 if (psn.psn_len == 0)
1542 goto done; /* no src_nodes */
1543 len *= 2;
1544 }
1545 p = psn.psn_src_nodes;
1546 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
1547 pfctl_print_title("SOURCE TRACKING NODES:");
1548 for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1549 print_src_node(p, opts);
1550 p++;
1551 }
1552 done:
1553 free(inbuf);
1554 return (0);
1555 }
1556
1557 int
pfctl_show_states(int dev,const char * iface,int opts)1558 pfctl_show_states(int dev, const char *iface, int opts)
1559 {
1560 struct pfctl_states states;
1561 struct pfctl_state *s;
1562 int dotitle = (opts & PF_OPT_SHOWALL);
1563
1564 memset(&states, 0, sizeof(states));
1565
1566 if (pfctl_get_states(dev, &states))
1567 return (-1);
1568
1569 TAILQ_FOREACH(s, &states.states, entry) {
1570 if (iface != NULL && strcmp(s->ifname, iface))
1571 continue;
1572 if (dotitle) {
1573 pfctl_print_title("STATES:");
1574 dotitle = 0;
1575 }
1576 print_state(s, opts);
1577 }
1578
1579 pfctl_free_states(&states);
1580
1581 return (0);
1582 }
1583
1584 int
pfctl_show_status(int dev,int opts)1585 pfctl_show_status(int dev, int opts)
1586 {
1587 struct pfctl_status *status;
1588 struct pfctl_syncookies cookies;
1589
1590 if ((status = pfctl_get_status(dev)) == NULL) {
1591 warn("DIOCGETSTATUS");
1592 return (-1);
1593 }
1594 if (pfctl_get_syncookies(dev, &cookies)) {
1595 pfctl_free_status(status);
1596 warn("DIOCGETSYNCOOKIES");
1597 return (-1);
1598 }
1599 if (opts & PF_OPT_SHOWALL)
1600 pfctl_print_title("INFO:");
1601 print_status(status, &cookies, opts);
1602 pfctl_free_status(status);
1603 return (0);
1604 }
1605
1606 int
pfctl_show_running(int dev)1607 pfctl_show_running(int dev)
1608 {
1609 struct pfctl_status *status;
1610 int running;
1611
1612 if ((status = pfctl_get_status(dev)) == NULL) {
1613 warn("DIOCGETSTATUS");
1614 return (-1);
1615 }
1616
1617 running = status->running;
1618
1619 print_running(status);
1620 pfctl_free_status(status);
1621 return (!running);
1622 }
1623
1624 int
pfctl_show_timeouts(int dev,int opts)1625 pfctl_show_timeouts(int dev, int opts)
1626 {
1627 struct pfioc_tm pt;
1628 int i;
1629
1630 if (opts & PF_OPT_SHOWALL)
1631 pfctl_print_title("TIMEOUTS:");
1632 memset(&pt, 0, sizeof(pt));
1633 for (i = 0; pf_timeouts[i].name; i++) {
1634 pt.timeout = pf_timeouts[i].timeout;
1635 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1636 err(1, "DIOCGETTIMEOUT");
1637 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1638 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1639 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1640 printf(" states");
1641 else
1642 printf("s");
1643 printf("\n");
1644 }
1645 return (0);
1646
1647 }
1648
1649 int
pfctl_show_limits(int dev,int opts)1650 pfctl_show_limits(int dev, int opts)
1651 {
1652 struct pfioc_limit pl;
1653 int i;
1654
1655 if (opts & PF_OPT_SHOWALL)
1656 pfctl_print_title("LIMITS:");
1657 memset(&pl, 0, sizeof(pl));
1658 for (i = 0; pf_limits[i].name; i++) {
1659 pl.index = pf_limits[i].index;
1660 if (ioctl(dev, DIOCGETLIMIT, &pl))
1661 err(1, "DIOCGETLIMIT");
1662 printf("%-13s ", pf_limits[i].name);
1663 if (pl.limit == UINT_MAX)
1664 printf("unlimited\n");
1665 else
1666 printf("hard limit %8u\n", pl.limit);
1667 }
1668 return (0);
1669 }
1670
1671 /* callbacks for rule/nat/rdr/addr */
1672 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af)1673 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af)
1674 {
1675 struct pf_pooladdr *pa;
1676
1677 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1678 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1679 err(1, "DIOCBEGINADDRS");
1680 }
1681
1682 pf->paddr.af = af;
1683 TAILQ_FOREACH(pa, &p->list, entries) {
1684 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1685 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1686 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1687 err(1, "DIOCADDADDR");
1688 }
1689 }
1690 return (0);
1691 }
1692
1693 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1694 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1695 const char *anchor_call)
1696 {
1697 u_int8_t rs_num;
1698 struct pfctl_rule *rule;
1699 struct pfctl_ruleset *rs;
1700 char *p;
1701
1702 rs_num = pf_get_ruleset_number(r->action);
1703 if (rs_num == PF_RULESET_MAX)
1704 errx(1, "Invalid rule type %d", r->action);
1705
1706 rs = &pf->anchor->ruleset;
1707
1708 if (anchor_call[0] && r->anchor == NULL) {
1709 /*
1710 * Don't make non-brace anchors part of the main anchor pool.
1711 */
1712 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1713 err(1, "pfctl_append_rule: calloc");
1714
1715 pf_init_ruleset(&r->anchor->ruleset);
1716 r->anchor->ruleset.anchor = r->anchor;
1717 if (strlcpy(r->anchor->path, anchor_call,
1718 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1719 errx(1, "pfctl_append_rule: strlcpy");
1720 if ((p = strrchr(anchor_call, '/')) != NULL) {
1721 if (!strlen(p))
1722 err(1, "pfctl_append_rule: bad anchor name %s",
1723 anchor_call);
1724 } else
1725 p = (char *)anchor_call;
1726 if (strlcpy(r->anchor->name, p,
1727 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1728 errx(1, "pfctl_append_rule: strlcpy");
1729 }
1730
1731 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1732 err(1, "calloc");
1733 bcopy(r, rule, sizeof(*rule));
1734 TAILQ_INIT(&rule->rpool.list);
1735 pfctl_move_pool(&r->rpool, &rule->rpool);
1736
1737 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1738 return (0);
1739 }
1740
1741 int
pfctl_append_eth_rule(struct pfctl * pf,struct pfctl_eth_rule * r,const char * anchor_call)1742 pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r,
1743 const char *anchor_call)
1744 {
1745 struct pfctl_eth_rule *rule;
1746 struct pfctl_eth_ruleset *rs;
1747 char *p;
1748
1749 rs = &pf->eanchor->ruleset;
1750
1751 if (anchor_call[0] && r->anchor == NULL) {
1752 /*
1753 * Don't make non-brace anchors part of the main anchor pool.
1754 */
1755 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1756 err(1, "pfctl_append_rule: calloc");
1757
1758 pf_init_eth_ruleset(&r->anchor->ruleset);
1759 r->anchor->ruleset.anchor = r->anchor;
1760 if (strlcpy(r->anchor->path, anchor_call,
1761 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1762 errx(1, "pfctl_append_rule: strlcpy");
1763 if ((p = strrchr(anchor_call, '/')) != NULL) {
1764 if (!strlen(p))
1765 err(1, "pfctl_append_eth_rule: bad anchor name %s",
1766 anchor_call);
1767 } else
1768 p = (char *)anchor_call;
1769 if (strlcpy(r->anchor->name, p,
1770 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1771 errx(1, "pfctl_append_eth_rule: strlcpy");
1772 }
1773
1774 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1775 err(1, "calloc");
1776 bcopy(r, rule, sizeof(*rule));
1777
1778 TAILQ_INSERT_TAIL(&rs->rules, rule, entries);
1779 return (0);
1780 }
1781
1782 int
pfctl_eth_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_eth_anchor * a)1783 pfctl_eth_ruleset_trans(struct pfctl *pf, char *path,
1784 struct pfctl_eth_anchor *a)
1785 {
1786 int osize = pf->trans->pfrb_size;
1787
1788 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) {
1789 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1790 return (1);
1791 }
1792 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1793 return (5);
1794
1795 return (0);
1796 }
1797
1798 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a,bool do_eth)1799 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth)
1800 {
1801 int osize = pf->trans->pfrb_size;
1802
1803 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) {
1804 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1805 return (1);
1806 }
1807 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1808 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1809 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1810 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1811 return (1);
1812 }
1813 if (a == pf->astack[0] && ((altqsupport &&
1814 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1815 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1816 return (2);
1817 }
1818 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1819 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1820 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1821 return (3);
1822 }
1823 if (pf->loadopt & PFCTL_FLAG_TABLE)
1824 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1825 return (4);
1826 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1827 return (5);
1828
1829 return (0);
1830 }
1831
1832 int
pfctl_load_eth_ruleset(struct pfctl * pf,char * path,struct pfctl_eth_ruleset * rs,int depth)1833 pfctl_load_eth_ruleset(struct pfctl *pf, char *path,
1834 struct pfctl_eth_ruleset *rs, int depth)
1835 {
1836 struct pfctl_eth_rule *r;
1837 int error, len = strlen(path);
1838 int brace = 0;
1839
1840 pf->eanchor = rs->anchor;
1841 if (path[0])
1842 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name);
1843 else
1844 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name);
1845
1846 if (depth) {
1847 if (TAILQ_FIRST(&rs->rules) != NULL) {
1848 brace++;
1849 if (pf->opts & PF_OPT_VERBOSE)
1850 printf(" {\n");
1851 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1852 (error = pfctl_eth_ruleset_trans(pf,
1853 path, rs->anchor))) {
1854 printf("pfctl_load_eth_rulesets: "
1855 "pfctl_eth_ruleset_trans %d\n", error);
1856 goto error;
1857 }
1858 } else if (pf->opts & PF_OPT_VERBOSE)
1859 printf("\n");
1860 }
1861
1862 while ((r = TAILQ_FIRST(&rs->rules)) != NULL) {
1863 TAILQ_REMOVE(&rs->rules, r, entries);
1864
1865 error = pfctl_load_eth_rule(pf, path, r, depth);
1866 if (error)
1867 return (error);
1868
1869 if (r->anchor) {
1870 if ((error = pfctl_load_eth_ruleset(pf, path,
1871 &r->anchor->ruleset, depth + 1)))
1872 return (error);
1873 } else if (pf->opts & PF_OPT_VERBOSE)
1874 printf("\n");
1875 free(r);
1876 }
1877 if (brace && pf->opts & PF_OPT_VERBOSE) {
1878 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1879 printf("}\n");
1880 }
1881 path[len] = '\0';
1882
1883 return (0);
1884 error:
1885 path[len] = '\0';
1886 return (error);
1887 }
1888
1889 int
pfctl_load_eth_rule(struct pfctl * pf,char * path,struct pfctl_eth_rule * r,int depth)1890 pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r,
1891 int depth)
1892 {
1893 char *name;
1894 char anchor[PF_ANCHOR_NAME_SIZE];
1895 int len = strlen(path);
1896
1897 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1898 errx(1, "pfctl_load_eth_rule: strlcpy");
1899
1900 if (r->anchor) {
1901 if (r->anchor->match) {
1902 if (path[0])
1903 snprintf(&path[len], MAXPATHLEN - len,
1904 "/%s", r->anchor->name);
1905 else
1906 snprintf(&path[len], MAXPATHLEN - len,
1907 "%s", r->anchor->name);
1908 name = r->anchor->name;
1909 } else
1910 name = r->anchor->path;
1911 } else
1912 name = "";
1913
1914 if ((pf->opts & PF_OPT_NOACTION) == 0)
1915 if (pfctl_add_eth_rule(pf->dev, r, anchor, name,
1916 pf->eth_ticket))
1917 err(1, "DIOCADDETHRULENV");
1918
1919 if (pf->opts & PF_OPT_VERBOSE) {
1920 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1921 print_eth_rule(r, r->anchor ? r->anchor->name : "",
1922 pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1923 }
1924
1925 path[len] = '\0';
1926
1927 return (0);
1928 }
1929
1930 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1931 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1932 int rs_num, int depth)
1933 {
1934 struct pfctl_rule *r;
1935 int error, len = strlen(path);
1936 int brace = 0;
1937
1938 pf->anchor = rs->anchor;
1939
1940 if (path[0])
1941 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1942 else
1943 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1944
1945 if (depth) {
1946 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1947 brace++;
1948 if (pf->opts & PF_OPT_VERBOSE)
1949 printf(" {\n");
1950 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1951 (error = pfctl_ruleset_trans(pf,
1952 path, rs->anchor, false))) {
1953 printf("pfctl_load_rulesets: "
1954 "pfctl_ruleset_trans %d\n", error);
1955 goto error;
1956 }
1957 } else if (pf->opts & PF_OPT_VERBOSE)
1958 printf("\n");
1959
1960 }
1961
1962 if (pf->optimize && rs_num == PF_RULESET_FILTER)
1963 pfctl_optimize_ruleset(pf, rs);
1964
1965 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1966 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1967
1968 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
1969 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
1970 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
1971 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
1972
1973 if ((error = pfctl_load_rule(pf, path, r, depth)))
1974 goto error;
1975 if (r->anchor) {
1976 if ((error = pfctl_load_ruleset(pf, path,
1977 &r->anchor->ruleset, rs_num, depth + 1)))
1978 goto error;
1979 } else if (pf->opts & PF_OPT_VERBOSE)
1980 printf("\n");
1981 free(r);
1982 }
1983 if (brace && pf->opts & PF_OPT_VERBOSE) {
1984 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1985 printf("}\n");
1986 }
1987 path[len] = '\0';
1988 return (0);
1989
1990 error:
1991 path[len] = '\0';
1992 return (error);
1993
1994 }
1995
1996 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)1997 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
1998 {
1999 u_int8_t rs_num = pf_get_ruleset_number(r->action);
2000 char *name;
2001 u_int32_t ticket;
2002 char anchor[PF_ANCHOR_NAME_SIZE];
2003 int len = strlen(path);
2004 int error;
2005 bool was_present;
2006
2007 /* set up anchor before adding to path for anchor_call */
2008 if ((pf->opts & PF_OPT_NOACTION) == 0)
2009 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
2010 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
2011 errx(1, "pfctl_load_rule: strlcpy");
2012
2013 if (r->anchor) {
2014 if (r->anchor->match) {
2015 if (path[0])
2016 snprintf(&path[len], MAXPATHLEN - len,
2017 "/%s", r->anchor->name);
2018 else
2019 snprintf(&path[len], MAXPATHLEN - len,
2020 "%s", r->anchor->name);
2021 name = r->anchor->name;
2022 } else
2023 name = r->anchor->path;
2024 } else
2025 name = "";
2026
2027 was_present = false;
2028 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2029 if (pfctl_add_pool(pf, &r->rpool, r->af))
2030 return (1);
2031 error = pfctl_add_rule(pf->dev, r, anchor, name, ticket,
2032 pf->paddr.ticket);
2033 switch (error) {
2034 case 0:
2035 /* things worked, do nothing */
2036 break;
2037 case EEXIST:
2038 /* an identical rule is already present */
2039 was_present = true;
2040 break;
2041 default:
2042 err(1, "DIOCADDRULENV");
2043 }
2044 }
2045
2046 if (pf->opts & PF_OPT_VERBOSE) {
2047 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
2048 print_rule(r, name,
2049 pf->opts & PF_OPT_VERBOSE2,
2050 pf->opts & PF_OPT_NUMERIC);
2051 if (was_present)
2052 printf(" -- rule was already present");
2053 }
2054 path[len] = '\0';
2055 pfctl_clear_pool(&r->rpool);
2056 return (0);
2057 }
2058
2059 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)2060 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
2061 {
2062 if (altqsupport &&
2063 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
2064 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
2065 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2066 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
2067 if (errno == ENXIO)
2068 errx(1, "qtype not configured");
2069 else if (errno == ENODEV)
2070 errx(1, "%s: driver does not support "
2071 "altq", a->ifname);
2072 else
2073 err(1, "DIOCADDALTQ");
2074 }
2075 }
2076 pfaltq_store(&pf->paltq->altq);
2077 }
2078 return (0);
2079 }
2080
2081 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)2082 pfctl_rules(int dev, char *filename, int opts, int optimize,
2083 char *anchorname, struct pfr_buffer *trans)
2084 {
2085 #define ERR(x) do { warn(x); goto _error; } while(0)
2086 #define ERRX(x) do { warnx(x); goto _error; } while(0)
2087
2088 struct pfr_buffer *t, buf;
2089 struct pfioc_altq pa;
2090 struct pfctl pf;
2091 struct pfctl_ruleset *rs;
2092 struct pfctl_eth_ruleset *ethrs;
2093 struct pfr_table trs;
2094 char *path;
2095 int osize;
2096
2097 RB_INIT(&pf_anchors);
2098 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
2099 pf_init_ruleset(&pf_main_anchor.ruleset);
2100 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
2101
2102 memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor));
2103 pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset);
2104 pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor;
2105
2106 if (trans == NULL) {
2107 bzero(&buf, sizeof(buf));
2108 buf.pfrb_type = PFRB_TRANS;
2109 t = &buf;
2110 osize = 0;
2111 } else {
2112 t = trans;
2113 osize = t->pfrb_size;
2114 }
2115
2116 memset(&pa, 0, sizeof(pa));
2117 pa.version = PFIOC_ALTQ_VERSION;
2118 memset(&pf, 0, sizeof(pf));
2119 memset(&trs, 0, sizeof(trs));
2120 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2121 ERRX("pfctl_rules: calloc");
2122 if (strlcpy(trs.pfrt_anchor, anchorname,
2123 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
2124 ERRX("pfctl_rules: strlcpy");
2125 pf.dev = dev;
2126 pf.opts = opts;
2127 pf.optimize = optimize;
2128 pf.loadopt = loadopt;
2129
2130 /* non-brace anchor, create without resolving the path */
2131 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
2132 ERRX("pfctl_rules: calloc");
2133 rs = &pf.anchor->ruleset;
2134 pf_init_ruleset(rs);
2135 rs->anchor = pf.anchor;
2136 if (strlcpy(pf.anchor->path, anchorname,
2137 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
2138 errx(1, "pfctl_rules: strlcpy");
2139 if (strlcpy(pf.anchor->name, anchorname,
2140 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
2141 errx(1, "pfctl_rules: strlcpy");
2142
2143
2144 pf.astack[0] = pf.anchor;
2145 pf.asd = 0;
2146 if (anchorname[0])
2147 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
2148 pf.paltq = &pa;
2149 pf.trans = t;
2150 pfctl_init_options(&pf);
2151
2152 /* Set up ethernet anchor */
2153 if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
2154 ERRX("pfctl_rules: calloc");
2155
2156 if (strlcpy(pf.eanchor->path, anchorname,
2157 sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
2158 errx(1, "pfctl_rules: strlcpy");
2159 if (strlcpy(pf.eanchor->name, anchorname,
2160 sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
2161 errx(1, "pfctl_rules: strlcpy");
2162
2163 ethrs = &pf.eanchor->ruleset;
2164 pf_init_eth_ruleset(ethrs);
2165 ethrs->anchor = pf.eanchor;
2166 pf.eastack[0] = pf.eanchor;
2167
2168 if ((opts & PF_OPT_NOACTION) == 0) {
2169 /*
2170 * XXX For the time being we need to open transactions for
2171 * the main ruleset before parsing, because tables are still
2172 * loaded at parse time.
2173 */
2174 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
2175 ERRX("pfctl_rules");
2176 if (pf.loadopt & PFCTL_FLAG_ETH)
2177 pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname);
2178 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
2179 pa.ticket =
2180 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
2181 if (pf.loadopt & PFCTL_FLAG_TABLE)
2182 pf.astack[0]->ruleset.tticket =
2183 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
2184 }
2185
2186 if (parse_config(filename, &pf) < 0) {
2187 if ((opts & PF_OPT_NOACTION) == 0)
2188 ERRX("Syntax error in config file: "
2189 "pf rules not loaded");
2190 else
2191 goto _error;
2192 }
2193 if (loadopt & PFCTL_FLAG_OPTION)
2194 pfctl_adjust_skip_ifaces(&pf);
2195
2196 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
2197 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
2198 (pf.loadopt & PFCTL_FLAG_ETH &&
2199 (pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) ||
2200 (pf.loadopt & PFCTL_FLAG_NAT &&
2201 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
2202 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
2203 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
2204 (pf.loadopt & PFCTL_FLAG_FILTER &&
2205 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
2206 if ((opts & PF_OPT_NOACTION) == 0)
2207 ERRX("Unable to load rules into kernel");
2208 else
2209 goto _error;
2210 }
2211
2212 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
2213 if (check_commit_altq(dev, opts) != 0)
2214 ERRX("errors in altq config");
2215
2216 /* process "load anchor" directives */
2217 if (!anchorname[0])
2218 if (pfctl_load_anchors(dev, &pf, t) == -1)
2219 ERRX("load anchors");
2220
2221 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
2222 if (!anchorname[0])
2223 if (pfctl_load_options(&pf))
2224 goto _error;
2225 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
2226 ERR("DIOCXCOMMIT");
2227 }
2228 free(path);
2229 return (0);
2230
2231 _error:
2232 if (trans == NULL) { /* main ruleset */
2233 if ((opts & PF_OPT_NOACTION) == 0)
2234 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
2235 err(1, "DIOCXROLLBACK");
2236 exit(1);
2237 } else { /* sub ruleset */
2238 free(path);
2239 return (-1);
2240 }
2241
2242 #undef ERR
2243 #undef ERRX
2244 }
2245
2246 FILE *
pfctl_fopen(const char * name,const char * mode)2247 pfctl_fopen(const char *name, const char *mode)
2248 {
2249 struct stat st;
2250 FILE *fp;
2251
2252 fp = fopen(name, mode);
2253 if (fp == NULL)
2254 return (NULL);
2255 if (fstat(fileno(fp), &st)) {
2256 fclose(fp);
2257 return (NULL);
2258 }
2259 if (S_ISDIR(st.st_mode)) {
2260 fclose(fp);
2261 errno = EISDIR;
2262 return (NULL);
2263 }
2264 return (fp);
2265 }
2266
2267 void
pfctl_init_options(struct pfctl * pf)2268 pfctl_init_options(struct pfctl *pf)
2269 {
2270
2271 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2272 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
2273 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2274 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2275 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
2276 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2277 pf->timeout[PFTM_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2278 pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
2279 pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2280 pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2281 pf->timeout[PFTM_SCTP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2282 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
2283 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
2284 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
2285 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
2286 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
2287 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
2288 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
2289 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
2290 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
2291 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
2292 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
2293 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
2294 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
2295 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
2296
2297 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
2298 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
2299 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
2300 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
2301
2302 pf->debug = PF_DEBUG_URGENT;
2303 pf->reassemble = 0;
2304
2305 pf->syncookies = false;
2306 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
2307 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
2308 }
2309
2310 int
pfctl_load_options(struct pfctl * pf)2311 pfctl_load_options(struct pfctl *pf)
2312 {
2313 int i, error = 0;
2314
2315 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2316 return (0);
2317
2318 /* load limits */
2319 for (i = 0; i < PF_LIMIT_MAX; i++) {
2320 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
2321 continue;
2322 if (pfctl_load_limit(pf, i, pf->limit[i]))
2323 error = 1;
2324 }
2325
2326 /*
2327 * If we've set the limit, but haven't explicitly set adaptive
2328 * timeouts, do it now with a start of 60% and end of 120%.
2329 */
2330 if (pf->limit_set[PF_LIMIT_STATES] &&
2331 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
2332 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
2333 pf->timeout[PFTM_ADAPTIVE_START] =
2334 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
2335 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
2336 pf->timeout[PFTM_ADAPTIVE_END] =
2337 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
2338 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
2339 }
2340
2341 /* load timeouts */
2342 for (i = 0; i < PFTM_MAX; i++) {
2343 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
2344 continue;
2345 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
2346 error = 1;
2347 }
2348
2349 /* load debug */
2350 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
2351 if (pfctl_load_debug(pf, pf->debug))
2352 error = 1;
2353
2354 /* load logif */
2355 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
2356 if (pfctl_load_logif(pf, pf->ifname))
2357 error = 1;
2358
2359 /* load hostid */
2360 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
2361 if (pfctl_load_hostid(pf, pf->hostid))
2362 error = 1;
2363
2364 /* load reassembly settings */
2365 if (!(pf->opts & PF_OPT_MERGE) || pf->reass_set)
2366 if (pfctl_load_reassembly(pf, pf->reassemble))
2367 error = 1;
2368
2369 /* load keepcounters */
2370 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
2371 error = 1;
2372
2373 /* load syncookies settings */
2374 if (pfctl_load_syncookies(pf, pf->syncookies))
2375 error = 1;
2376
2377 return (error);
2378 }
2379
2380 int
pfctl_set_limit(struct pfctl * pf,const char * opt,unsigned int limit)2381 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
2382 {
2383 int i;
2384
2385
2386 for (i = 0; pf_limits[i].name; i++) {
2387 if (strcasecmp(opt, pf_limits[i].name) == 0) {
2388 pf->limit[pf_limits[i].index] = limit;
2389 pf->limit_set[pf_limits[i].index] = 1;
2390 break;
2391 }
2392 }
2393 if (pf_limits[i].name == NULL) {
2394 warnx("Bad pool name.");
2395 return (1);
2396 }
2397
2398 if (pf->opts & PF_OPT_VERBOSE)
2399 printf("set limit %s %d\n", opt, limit);
2400
2401 return (0);
2402 }
2403
2404 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)2405 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
2406 {
2407 struct pfioc_limit pl;
2408
2409 memset(&pl, 0, sizeof(pl));
2410 pl.index = index;
2411 pl.limit = limit;
2412 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
2413 if (errno == EBUSY)
2414 warnx("Current pool size exceeds requested hard limit");
2415 else
2416 warnx("DIOCSETLIMIT");
2417 return (1);
2418 }
2419 return (0);
2420 }
2421
2422 int
pfctl_set_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)2423 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
2424 {
2425 int i;
2426
2427 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2428 return (0);
2429
2430 for (i = 0; pf_timeouts[i].name; i++) {
2431 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2432 pf->timeout[pf_timeouts[i].timeout] = seconds;
2433 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2434 break;
2435 }
2436 }
2437
2438 if (pf_timeouts[i].name == NULL) {
2439 warnx("Bad timeout name.");
2440 return (1);
2441 }
2442
2443
2444 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2445 printf("set timeout %s %d\n", opt, seconds);
2446
2447 return (0);
2448 }
2449
2450 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2451 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2452 {
2453 struct pfioc_tm pt;
2454
2455 memset(&pt, 0, sizeof(pt));
2456 pt.timeout = timeout;
2457 pt.seconds = seconds;
2458 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
2459 warnx("DIOCSETTIMEOUT");
2460 return (1);
2461 }
2462 return (0);
2463 }
2464
2465 int
pfctl_set_reassembly(struct pfctl * pf,int on,int nodf)2466 pfctl_set_reassembly(struct pfctl *pf, int on, int nodf)
2467 {
2468 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2469 return (0);
2470
2471 pf->reass_set = 1;
2472 if (on) {
2473 pf->reassemble = PF_REASS_ENABLED;
2474 if (nodf)
2475 pf->reassemble |= PF_REASS_NODF;
2476 } else {
2477 pf->reassemble = 0;
2478 }
2479
2480 if (pf->opts & PF_OPT_VERBOSE)
2481 printf("set reassemble %s %s\n", on ? "yes" : "no",
2482 nodf ? "no-df" : "");
2483
2484 return (0);
2485 }
2486
2487 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2488 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2489 {
2490 const struct pf_hint *hint;
2491 int i, r;
2492
2493 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2494 return (0);
2495
2496 for (i = 0; pf_hints[i].name; i++)
2497 if (strcasecmp(opt, pf_hints[i].name) == 0)
2498 break;
2499
2500 hint = pf_hints[i].hint;
2501 if (hint == NULL) {
2502 warnx("invalid state timeouts optimization");
2503 return (1);
2504 }
2505
2506 for (i = 0; hint[i].name; i++)
2507 if ((r = pfctl_set_timeout(pf, hint[i].name,
2508 hint[i].timeout, 1)))
2509 return (r);
2510
2511 if (pf->opts & PF_OPT_VERBOSE)
2512 printf("set optimization %s\n", opt);
2513
2514 return (0);
2515 }
2516
2517 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2518 pfctl_set_logif(struct pfctl *pf, char *ifname)
2519 {
2520
2521 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2522 return (0);
2523
2524 if (!strcmp(ifname, "none")) {
2525 free(pf->ifname);
2526 pf->ifname = NULL;
2527 } else {
2528 pf->ifname = strdup(ifname);
2529 if (!pf->ifname)
2530 errx(1, "pfctl_set_logif: strdup");
2531 }
2532 pf->ifname_set = 1;
2533
2534 if (pf->opts & PF_OPT_VERBOSE)
2535 printf("set loginterface %s\n", ifname);
2536
2537 return (0);
2538 }
2539
2540 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2541 pfctl_load_logif(struct pfctl *pf, char *ifname)
2542 {
2543 struct pfioc_if pi;
2544
2545 memset(&pi, 0, sizeof(pi));
2546 if (ifname && strlcpy(pi.ifname, ifname,
2547 sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
2548 warnx("pfctl_load_logif: strlcpy");
2549 return (1);
2550 }
2551 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
2552 warnx("DIOCSETSTATUSIF");
2553 return (1);
2554 }
2555 return (0);
2556 }
2557
2558 int
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2559 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2560 {
2561 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2562 return (0);
2563
2564 HTONL(hostid);
2565
2566 pf->hostid = hostid;
2567 pf->hostid_set = 1;
2568
2569 if (pf->opts & PF_OPT_VERBOSE)
2570 printf("set hostid 0x%08x\n", ntohl(hostid));
2571
2572 return (0);
2573 }
2574
2575 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2576 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2577 {
2578 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2579 warnx("DIOCSETHOSTID");
2580 return (1);
2581 }
2582 return (0);
2583 }
2584
2585 int
pfctl_load_reassembly(struct pfctl * pf,u_int32_t reassembly)2586 pfctl_load_reassembly(struct pfctl *pf, u_int32_t reassembly)
2587 {
2588 if (ioctl(dev, DIOCSETREASS, &reassembly)) {
2589 warnx("DIOCSETREASS");
2590 return (1);
2591 }
2592 return (0);
2593 }
2594
2595 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2596 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2597 {
2598 struct pfctl_syncookies cookies;
2599
2600 bzero(&cookies, sizeof(cookies));
2601
2602 cookies.mode = val;
2603 cookies.lowwater = pf->syncookieswat[0];
2604 cookies.highwater = pf->syncookieswat[1];
2605
2606 if (pfctl_set_syncookies(dev, &cookies)) {
2607 warnx("DIOCSETSYNCOOKIES");
2608 return (1);
2609 }
2610 return (0);
2611 }
2612
2613 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2614 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2615 {
2616 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2617 warnx("syncookies start/end only apply to adaptive");
2618 return (1);
2619 }
2620 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2621 if (!w->hi)
2622 w->hi = PF_SYNCOOKIES_HIWATPCT;
2623 if (!w->lo)
2624 w->lo = w->hi / 2;
2625 if (w->lo >= w->hi) {
2626 warnx("start must be higher than end");
2627 return (1);
2628 }
2629 pf->syncookieswat[0] = w->lo;
2630 pf->syncookieswat[1] = w->hi;
2631 pf->syncookieswat_set = 1;
2632 }
2633
2634 if (pf->opts & PF_OPT_VERBOSE) {
2635 if (val == PF_SYNCOOKIES_NEVER)
2636 printf("set syncookies never\n");
2637 else if (val == PF_SYNCOOKIES_ALWAYS)
2638 printf("set syncookies always\n");
2639 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2640 if (pf->syncookieswat_set)
2641 printf("set syncookies adaptive (start %u%%, "
2642 "end %u%%)\n", pf->syncookieswat[1],
2643 pf->syncookieswat[0]);
2644 else
2645 printf("set syncookies adaptive\n");
2646 } else { /* cannot happen */
2647 warnx("king bula ate all syncookies");
2648 return (1);
2649 }
2650 }
2651
2652 pf->syncookies = val;
2653 return (0);
2654 }
2655
2656 int
pfctl_set_debug(struct pfctl * pf,char * d)2657 pfctl_set_debug(struct pfctl *pf, char *d)
2658 {
2659 u_int32_t level;
2660
2661 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2662 return (0);
2663
2664 if (!strcmp(d, "none"))
2665 pf->debug = PF_DEBUG_NONE;
2666 else if (!strcmp(d, "urgent"))
2667 pf->debug = PF_DEBUG_URGENT;
2668 else if (!strcmp(d, "misc"))
2669 pf->debug = PF_DEBUG_MISC;
2670 else if (!strcmp(d, "loud"))
2671 pf->debug = PF_DEBUG_NOISY;
2672 else {
2673 warnx("unknown debug level \"%s\"", d);
2674 return (-1);
2675 }
2676
2677 pf->debug_set = 1;
2678 level = pf->debug;
2679
2680 if ((pf->opts & PF_OPT_NOACTION) == 0)
2681 if (ioctl(dev, DIOCSETDEBUG, &level))
2682 err(1, "DIOCSETDEBUG");
2683
2684 if (pf->opts & PF_OPT_VERBOSE)
2685 printf("set debug %s\n", d);
2686
2687 return (0);
2688 }
2689
2690 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2691 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2692 {
2693 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
2694 warnx("DIOCSETDEBUG");
2695 return (1);
2696 }
2697 return (0);
2698 }
2699
2700 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2701 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2702 {
2703 struct pfioc_iface pi;
2704 struct node_host *h = NULL, *n = NULL;
2705
2706 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2707 return (0);
2708
2709 bzero(&pi, sizeof(pi));
2710
2711 pi.pfiio_flags = flags;
2712
2713 /* Make sure our cache matches the kernel. If we set or clear the flag
2714 * for a group this applies to all members. */
2715 h = ifa_grouplookup(ifname, 0);
2716 for (n = h; n != NULL; n = n->next)
2717 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2718
2719 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2720 sizeof(pi.pfiio_name))
2721 errx(1, "pfctl_set_interface_flags: strlcpy");
2722
2723 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2724 if (how == 0) {
2725 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2726 err(1, "DIOCCLRIFFLAG");
2727 } else {
2728 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2729 err(1, "DIOCSETIFFLAG");
2730 pfctl_check_skip_ifaces(ifname);
2731 }
2732 }
2733 return (0);
2734 }
2735
2736 void
pfctl_debug(int dev,u_int32_t level,int opts)2737 pfctl_debug(int dev, u_int32_t level, int opts)
2738 {
2739 if (ioctl(dev, DIOCSETDEBUG, &level))
2740 err(1, "DIOCSETDEBUG");
2741 if ((opts & PF_OPT_QUIET) == 0) {
2742 fprintf(stderr, "debug level set to '");
2743 switch (level) {
2744 case PF_DEBUG_NONE:
2745 fprintf(stderr, "none");
2746 break;
2747 case PF_DEBUG_URGENT:
2748 fprintf(stderr, "urgent");
2749 break;
2750 case PF_DEBUG_MISC:
2751 fprintf(stderr, "misc");
2752 break;
2753 case PF_DEBUG_NOISY:
2754 fprintf(stderr, "loud");
2755 break;
2756 default:
2757 fprintf(stderr, "<invalid>");
2758 break;
2759 }
2760 fprintf(stderr, "'\n");
2761 }
2762 }
2763
2764 int
pfctl_test_altqsupport(int dev,int opts)2765 pfctl_test_altqsupport(int dev, int opts)
2766 {
2767 struct pfioc_altq pa;
2768
2769 pa.version = PFIOC_ALTQ_VERSION;
2770 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2771 if (errno == ENODEV) {
2772 if (opts & PF_OPT_VERBOSE)
2773 fprintf(stderr, "No ALTQ support in kernel\n"
2774 "ALTQ related functions disabled\n");
2775 return (0);
2776 } else
2777 err(1, "DIOCGETALTQS");
2778 }
2779 return (1);
2780 }
2781
2782 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2783 pfctl_show_anchors(int dev, int opts, char *anchorname)
2784 {
2785 struct pfioc_ruleset pr;
2786 u_int32_t mnr, nr;
2787
2788 memset(&pr, 0, sizeof(pr));
2789 memcpy(pr.path, anchorname, sizeof(pr.path));
2790 if (ioctl(dev, DIOCGETRULESETS, &pr)) {
2791 if (errno == EINVAL)
2792 fprintf(stderr, "Anchor '%s' not found.\n",
2793 anchorname);
2794 else
2795 err(1, "DIOCGETRULESETS");
2796 return (-1);
2797 }
2798 mnr = pr.nr;
2799 for (nr = 0; nr < mnr; ++nr) {
2800 char sub[MAXPATHLEN];
2801
2802 pr.nr = nr;
2803 if (ioctl(dev, DIOCGETRULESET, &pr))
2804 err(1, "DIOCGETRULESET");
2805 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2806 continue;
2807 sub[0] = 0;
2808 if (pr.path[0]) {
2809 strlcat(sub, pr.path, sizeof(sub));
2810 strlcat(sub, "/", sizeof(sub));
2811 }
2812 strlcat(sub, pr.name, sizeof(sub));
2813 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2814 printf(" %s\n", sub);
2815 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2816 return (-1);
2817 }
2818 return (0);
2819 }
2820
2821 int
pfctl_show_eth_anchors(int dev,int opts,char * anchorname)2822 pfctl_show_eth_anchors(int dev, int opts, char *anchorname)
2823 {
2824 struct pfctl_eth_rulesets_info ri;
2825 struct pfctl_eth_ruleset_info rs;
2826 int ret;
2827
2828 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) {
2829 if (ret == ENOENT)
2830 fprintf(stderr, "Anchor '%s' not found.\n",
2831 anchorname);
2832 else
2833 err(1, "DIOCGETETHRULESETS");
2834 return (-1);
2835 }
2836
2837 for (int nr = 0; nr < ri.nr; nr++) {
2838 char sub[MAXPATHLEN];
2839
2840 if (pfctl_get_eth_ruleset(dev, anchorname, nr, &rs) != 0)
2841 err(1, "DIOCGETETHRULESET");
2842
2843 if (!strcmp(rs.name, PF_RESERVED_ANCHOR))
2844 continue;
2845 sub[0] = 0;
2846 if (rs.path[0]) {
2847 strlcat(sub, rs.path, sizeof(sub));
2848 strlcat(sub, "/", sizeof(sub));
2849 }
2850 strlcat(sub, rs.name, sizeof(sub));
2851 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2852 printf(" %s\n", sub);
2853 if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub))
2854 return (-1);
2855 }
2856 return (0);
2857 }
2858
2859 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2860 pfctl_lookup_option(char *cmd, const char * const *list)
2861 {
2862 if (cmd != NULL && *cmd)
2863 for (; *list; list++)
2864 if (!strncmp(cmd, *list, strlen(cmd)))
2865 return (*list);
2866 return (NULL);
2867 }
2868
2869 int
main(int argc,char * argv[])2870 main(int argc, char *argv[])
2871 {
2872 int error = 0;
2873 int ch;
2874 int mode = O_RDONLY;
2875 int opts = 0;
2876 int optimize = PF_OPTIMIZE_BASIC;
2877 char anchorname[MAXPATHLEN];
2878 char *path;
2879
2880 if (argc < 2)
2881 usage();
2882
2883 while ((ch = getopt(argc, argv,
2884 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2885 switch (ch) {
2886 case 'a':
2887 anchoropt = optarg;
2888 break;
2889 case 'd':
2890 opts |= PF_OPT_DISABLE;
2891 mode = O_RDWR;
2892 break;
2893 case 'D':
2894 if (pfctl_cmdline_symset(optarg) < 0)
2895 warnx("could not parse macro definition %s",
2896 optarg);
2897 break;
2898 case 'e':
2899 opts |= PF_OPT_ENABLE;
2900 mode = O_RDWR;
2901 break;
2902 case 'q':
2903 opts |= PF_OPT_QUIET;
2904 break;
2905 case 'F':
2906 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2907 if (clearopt == NULL) {
2908 warnx("Unknown flush modifier '%s'", optarg);
2909 usage();
2910 }
2911 mode = O_RDWR;
2912 break;
2913 case 'i':
2914 ifaceopt = optarg;
2915 break;
2916 case 'k':
2917 if (state_killers >= 2) {
2918 warnx("can only specify -k twice");
2919 usage();
2920 /* NOTREACHED */
2921 }
2922 state_kill[state_killers++] = optarg;
2923 mode = O_RDWR;
2924 break;
2925 case 'K':
2926 if (src_node_killers >= 2) {
2927 warnx("can only specify -K twice");
2928 usage();
2929 /* NOTREACHED */
2930 }
2931 src_node_kill[src_node_killers++] = optarg;
2932 mode = O_RDWR;
2933 break;
2934 case 'm':
2935 opts |= PF_OPT_MERGE;
2936 break;
2937 case 'M':
2938 opts |= PF_OPT_KILLMATCH;
2939 break;
2940 case 'n':
2941 opts |= PF_OPT_NOACTION;
2942 break;
2943 case 'N':
2944 loadopt |= PFCTL_FLAG_NAT;
2945 break;
2946 case 'r':
2947 opts |= PF_OPT_USEDNS;
2948 break;
2949 case 'f':
2950 rulesopt = optarg;
2951 mode = O_RDWR;
2952 break;
2953 case 'g':
2954 opts |= PF_OPT_DEBUG;
2955 break;
2956 case 'A':
2957 loadopt |= PFCTL_FLAG_ALTQ;
2958 break;
2959 case 'R':
2960 loadopt |= PFCTL_FLAG_FILTER;
2961 break;
2962 case 'o':
2963 optiopt = pfctl_lookup_option(optarg, optiopt_list);
2964 if (optiopt == NULL) {
2965 warnx("Unknown optimization '%s'", optarg);
2966 usage();
2967 }
2968 opts |= PF_OPT_OPTIMIZE;
2969 break;
2970 case 'O':
2971 loadopt |= PFCTL_FLAG_OPTION;
2972 break;
2973 case 'p':
2974 pf_device = optarg;
2975 break;
2976 case 'P':
2977 opts |= PF_OPT_NUMERIC;
2978 break;
2979 case 's':
2980 showopt = pfctl_lookup_option(optarg, showopt_list);
2981 if (showopt == NULL) {
2982 warnx("Unknown show modifier '%s'", optarg);
2983 usage();
2984 }
2985 break;
2986 case 't':
2987 tableopt = optarg;
2988 break;
2989 case 'T':
2990 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2991 if (tblcmdopt == NULL) {
2992 warnx("Unknown table command '%s'", optarg);
2993 usage();
2994 }
2995 break;
2996 case 'v':
2997 if (opts & PF_OPT_VERBOSE)
2998 opts |= PF_OPT_VERBOSE2;
2999 opts |= PF_OPT_VERBOSE;
3000 break;
3001 case 'x':
3002 debugopt = pfctl_lookup_option(optarg, debugopt_list);
3003 if (debugopt == NULL) {
3004 warnx("Unknown debug level '%s'", optarg);
3005 usage();
3006 }
3007 mode = O_RDWR;
3008 break;
3009 case 'z':
3010 opts |= PF_OPT_CLRRULECTRS;
3011 mode = O_RDWR;
3012 break;
3013 case 'h':
3014 /* FALLTHROUGH */
3015 default:
3016 usage();
3017 /* NOTREACHED */
3018 }
3019 }
3020
3021 if (tblcmdopt != NULL) {
3022 argc -= optind;
3023 argv += optind;
3024 ch = *tblcmdopt;
3025 if (ch == 'l') {
3026 loadopt |= PFCTL_FLAG_TABLE;
3027 tblcmdopt = NULL;
3028 } else
3029 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
3030 } else if (argc != optind) {
3031 warnx("unknown command line argument: %s ...", argv[optind]);
3032 usage();
3033 /* NOTREACHED */
3034 }
3035 if (loadopt == 0)
3036 loadopt = ~0;
3037
3038 if ((path = calloc(1, MAXPATHLEN)) == NULL)
3039 errx(1, "pfctl: calloc");
3040 memset(anchorname, 0, sizeof(anchorname));
3041 if (anchoropt != NULL) {
3042 int len = strlen(anchoropt);
3043
3044 if (len >= 1 && anchoropt[len - 1] == '*') {
3045 if (len >= 2 && anchoropt[len - 2] == '/')
3046 anchoropt[len - 2] = '\0';
3047 else
3048 anchoropt[len - 1] = '\0';
3049 opts |= PF_OPT_RECURSE;
3050 }
3051 if (strlcpy(anchorname, anchoropt,
3052 sizeof(anchorname)) >= sizeof(anchorname))
3053 errx(1, "anchor name '%s' too long",
3054 anchoropt);
3055 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH;
3056 }
3057
3058 if ((opts & PF_OPT_NOACTION) == 0) {
3059 dev = open(pf_device, mode);
3060 if (dev == -1)
3061 err(1, "%s", pf_device);
3062 altqsupport = pfctl_test_altqsupport(dev, opts);
3063 } else {
3064 dev = open(pf_device, O_RDONLY);
3065 if (dev >= 0)
3066 opts |= PF_OPT_DUMMYACTION;
3067 /* turn off options */
3068 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
3069 clearopt = showopt = debugopt = NULL;
3070 #if !defined(ENABLE_ALTQ)
3071 altqsupport = 0;
3072 #else
3073 altqsupport = 1;
3074 #endif
3075 }
3076
3077 if (opts & PF_OPT_DISABLE)
3078 if (pfctl_disable(dev, opts))
3079 error = 1;
3080
3081 if (showopt != NULL) {
3082 switch (*showopt) {
3083 case 'A':
3084 pfctl_show_anchors(dev, opts, anchorname);
3085 if (opts & PF_OPT_VERBOSE2)
3086 printf("Ethernet:\n");
3087 pfctl_show_eth_anchors(dev, opts, anchorname);
3088 break;
3089 case 'r':
3090 pfctl_load_fingerprints(dev, opts);
3091 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
3092 anchorname, 0, 0);
3093 break;
3094 case 'l':
3095 pfctl_load_fingerprints(dev, opts);
3096 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
3097 anchorname, 0, 0);
3098 break;
3099 case 'n':
3100 pfctl_load_fingerprints(dev, opts);
3101 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3102 break;
3103 case 'q':
3104 pfctl_show_altq(dev, ifaceopt, opts,
3105 opts & PF_OPT_VERBOSE2);
3106 break;
3107 case 's':
3108 pfctl_show_states(dev, ifaceopt, opts);
3109 break;
3110 case 'S':
3111 pfctl_show_src_nodes(dev, opts);
3112 break;
3113 case 'i':
3114 pfctl_show_status(dev, opts);
3115 break;
3116 case 'R':
3117 error = pfctl_show_running(dev);
3118 break;
3119 case 't':
3120 pfctl_show_timeouts(dev, opts);
3121 break;
3122 case 'm':
3123 pfctl_show_limits(dev, opts);
3124 break;
3125 case 'e':
3126 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3127 0);
3128 break;
3129 case 'a':
3130 opts |= PF_OPT_SHOWALL;
3131 pfctl_load_fingerprints(dev, opts);
3132
3133 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3134 0);
3135
3136 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3137 pfctl_show_rules(dev, path, opts, 0, anchorname, 0, 0);
3138 pfctl_show_altq(dev, ifaceopt, opts, 0);
3139 pfctl_show_states(dev, ifaceopt, opts);
3140 pfctl_show_src_nodes(dev, opts);
3141 pfctl_show_status(dev, opts);
3142 pfctl_show_rules(dev, path, opts, 1, anchorname, 0, 0);
3143 pfctl_show_timeouts(dev, opts);
3144 pfctl_show_limits(dev, opts);
3145 pfctl_show_tables(anchorname, opts);
3146 pfctl_show_fingerprints(opts);
3147 break;
3148 case 'T':
3149 pfctl_show_tables(anchorname, opts);
3150 break;
3151 case 'o':
3152 pfctl_load_fingerprints(dev, opts);
3153 pfctl_show_fingerprints(opts);
3154 break;
3155 case 'I':
3156 pfctl_show_ifaces(ifaceopt, opts);
3157 break;
3158 }
3159 }
3160
3161 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) {
3162 pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3163 anchorname, 0, 0);
3164 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3165 anchorname, 0, 0);
3166 }
3167
3168 if (clearopt != NULL) {
3169 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3170 errx(1, "anchor names beginning with '_' cannot "
3171 "be modified from the command line");
3172
3173 switch (*clearopt) {
3174 case 'e':
3175 pfctl_flush_eth_rules(dev, opts, anchorname);
3176 break;
3177 case 'r':
3178 pfctl_flush_rules(dev, opts, anchorname);
3179 break;
3180 case 'n':
3181 pfctl_flush_nat(dev, opts, anchorname);
3182 break;
3183 case 'q':
3184 pfctl_clear_altq(dev, opts);
3185 break;
3186 case 's':
3187 pfctl_clear_iface_states(dev, ifaceopt, opts);
3188 break;
3189 case 'S':
3190 pfctl_clear_src_nodes(dev, opts);
3191 break;
3192 case 'i':
3193 pfctl_clear_stats(dev, opts);
3194 break;
3195 case 'a':
3196 pfctl_flush_eth_rules(dev, opts, anchorname);
3197 pfctl_flush_rules(dev, opts, anchorname);
3198 pfctl_flush_nat(dev, opts, anchorname);
3199 pfctl_clear_tables(anchorname, opts);
3200 if (!*anchorname) {
3201 pfctl_clear_altq(dev, opts);
3202 pfctl_clear_iface_states(dev, ifaceopt, opts);
3203 pfctl_clear_src_nodes(dev, opts);
3204 pfctl_clear_stats(dev, opts);
3205 pfctl_clear_fingerprints(dev, opts);
3206 pfctl_clear_interface_flags(dev, opts);
3207 }
3208 break;
3209 case 'o':
3210 pfctl_clear_fingerprints(dev, opts);
3211 break;
3212 case 'T':
3213 pfctl_clear_tables(anchorname, opts);
3214 break;
3215 }
3216 }
3217 if (state_killers) {
3218 if (!strcmp(state_kill[0], "label"))
3219 pfctl_label_kill_states(dev, ifaceopt, opts);
3220 else if (!strcmp(state_kill[0], "id"))
3221 pfctl_id_kill_states(dev, ifaceopt, opts);
3222 else if (!strcmp(state_kill[0], "gateway"))
3223 pfctl_gateway_kill_states(dev, ifaceopt, opts);
3224 else
3225 pfctl_net_kill_states(dev, ifaceopt, opts);
3226 }
3227
3228 if (src_node_killers)
3229 pfctl_kill_src_nodes(dev, ifaceopt, opts);
3230
3231 if (tblcmdopt != NULL) {
3232 error = pfctl_command_tables(argc, argv, tableopt,
3233 tblcmdopt, rulesopt, anchorname, opts);
3234 rulesopt = NULL;
3235 }
3236 if (optiopt != NULL) {
3237 switch (*optiopt) {
3238 case 'n':
3239 optimize = 0;
3240 break;
3241 case 'b':
3242 optimize |= PF_OPTIMIZE_BASIC;
3243 break;
3244 case 'o':
3245 case 'p':
3246 optimize |= PF_OPTIMIZE_PROFILE;
3247 break;
3248 }
3249 }
3250
3251 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
3252 !anchorname[0] && !(opts & PF_OPT_NOACTION))
3253 if (pfctl_get_skip_ifaces())
3254 error = 1;
3255
3256 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
3257 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
3258 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
3259 error = 1;
3260
3261 if (rulesopt != NULL) {
3262 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3263 errx(1, "anchor names beginning with '_' cannot "
3264 "be modified from the command line");
3265 if (pfctl_rules(dev, rulesopt, opts, optimize,
3266 anchorname, NULL))
3267 error = 1;
3268 else if (!(opts & PF_OPT_NOACTION) &&
3269 (loadopt & PFCTL_FLAG_TABLE))
3270 warn_namespace_collision(NULL);
3271 }
3272
3273 if (opts & PF_OPT_ENABLE)
3274 if (pfctl_enable(dev, opts))
3275 error = 1;
3276
3277 if (debugopt != NULL) {
3278 switch (*debugopt) {
3279 case 'n':
3280 pfctl_debug(dev, PF_DEBUG_NONE, opts);
3281 break;
3282 case 'u':
3283 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
3284 break;
3285 case 'm':
3286 pfctl_debug(dev, PF_DEBUG_MISC, opts);
3287 break;
3288 case 'l':
3289 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
3290 break;
3291 }
3292 }
3293
3294 exit(error);
3295 }
3296