1 /* $OpenBSD: pfctl_parser.c,v 1.240 2008/06/10 20:55:02 mcbride Exp $ */
4 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright (c) 2001 Daniel Hartmeier
7 * Copyright (c) 2002,2003 Henning Brauer
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/types.h>
40 #include <sys/ioctl.h>
41 #include <sys/socket.h>
42 #include <sys/param.h>
45 #include <netinet/in.h>
46 #include <netinet/in_systm.h>
47 #include <netinet/ip.h>
48 #include <netinet/ip_icmp.h>
49 #include <netinet/icmp6.h>
50 #include <net/pfvar.h>
51 #include <arpa/inet.h>
65 #include "pfctl_parser.h"
68 void print_op (u_int8_t, const char *, const char *);
69 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int);
70 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned);
71 void print_flags (u_int8_t);
72 void print_fromto(struct pf_rule_addr *, pf_osfp_t,
73 struct pf_rule_addr *, u_int8_t, u_int8_t, int, int);
74 int ifa_skip_if(const char *filter, struct node_host *p);
76 struct node_host *host_if(const char *, int);
77 struct node_host *host_v4(const char *, int);
78 struct node_host *host_v6(const char *, int);
79 struct node_host *host_dns(const char *, int, int);
81 const char * const tcpflags = "FSRPAUEW";
83 static const struct icmptypeent icmp_type[] = {
84 { "echoreq", ICMP_ECHO },
85 { "echorep", ICMP_ECHOREPLY },
86 { "unreach", ICMP_UNREACH },
87 { "squench", ICMP_SOURCEQUENCH },
88 { "redir", ICMP_REDIRECT },
89 { "althost", ICMP_ALTHOSTADDR },
90 { "routeradv", ICMP_ROUTERADVERT },
91 { "routersol", ICMP_ROUTERSOLICIT },
92 { "timex", ICMP_TIMXCEED },
93 { "paramprob", ICMP_PARAMPROB },
94 { "timereq", ICMP_TSTAMP },
95 { "timerep", ICMP_TSTAMPREPLY },
96 { "inforeq", ICMP_IREQ },
97 { "inforep", ICMP_IREQREPLY },
98 { "maskreq", ICMP_MASKREQ },
99 { "maskrep", ICMP_MASKREPLY },
100 { "trace", ICMP_TRACEROUTE },
101 { "dataconv", ICMP_DATACONVERR },
102 { "mobredir", ICMP_MOBILE_REDIRECT },
103 { "ipv6-where", ICMP_IPV6_WHEREAREYOU },
104 { "ipv6-here", ICMP_IPV6_IAMHERE },
105 { "mobregreq", ICMP_MOBILE_REGREQUEST },
106 { "mobregrep", ICMP_MOBILE_REGREPLY },
107 { "skip", ICMP_SKIP },
108 { "photuris", ICMP_PHOTURIS }
111 static const struct icmptypeent icmp6_type[] = {
112 { "unreach", ICMP6_DST_UNREACH },
113 { "toobig", ICMP6_PACKET_TOO_BIG },
114 { "timex", ICMP6_TIME_EXCEEDED },
115 { "paramprob", ICMP6_PARAM_PROB },
116 { "echoreq", ICMP6_ECHO_REQUEST },
117 { "echorep", ICMP6_ECHO_REPLY },
118 { "groupqry", ICMP6_MEMBERSHIP_QUERY },
119 { "listqry", MLD_LISTENER_QUERY },
120 { "grouprep", ICMP6_MEMBERSHIP_REPORT },
121 { "listenrep", MLD_LISTENER_REPORT },
122 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION },
123 { "listendone", MLD_LISTENER_DONE },
124 { "routersol", ND_ROUTER_SOLICIT },
125 { "routeradv", ND_ROUTER_ADVERT },
126 { "neighbrsol", ND_NEIGHBOR_SOLICIT },
127 { "neighbradv", ND_NEIGHBOR_ADVERT },
128 { "redir", ND_REDIRECT },
129 { "routrrenum", ICMP6_ROUTER_RENUMBERING },
130 { "wrureq", ICMP6_WRUREQUEST },
131 { "wrurep", ICMP6_WRUREPLY },
132 { "fqdnreq", ICMP6_FQDN_QUERY },
133 { "fqdnrep", ICMP6_FQDN_REPLY },
134 { "niqry", ICMP6_NI_QUERY },
135 { "nirep", ICMP6_NI_REPLY },
136 { "mtraceresp", MLD_MTRACE_RESP },
137 { "mtrace", MLD_MTRACE }
140 static const struct icmpcodeent icmp_code[] = {
141 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET },
142 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST },
143 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL },
144 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT },
145 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG },
146 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL },
147 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN },
148 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN },
149 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED },
150 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB },
151 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB },
152 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET },
153 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST },
154 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB },
155 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE },
156 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF },
157 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET },
158 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST },
159 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET },
160 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST },
161 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL },
162 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON },
163 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS },
164 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS },
165 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR },
166 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT },
167 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH },
168 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX },
169 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED },
170 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED }
173 static const struct icmpcodeent icmp6_code[] = {
174 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN },
175 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE },
176 { "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR },
177 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE },
178 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR },
179 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT },
180 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT },
181 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY },
182 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER },
183 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER },
184 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK },
185 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER }
188 const struct pf_timeout pf_timeouts[] = {
189 { "tcp.first", PFTM_TCP_FIRST_PACKET },
190 { "tcp.opening", PFTM_TCP_OPENING },
191 { "tcp.established", PFTM_TCP_ESTABLISHED },
192 { "tcp.closing", PFTM_TCP_CLOSING },
193 { "tcp.finwait", PFTM_TCP_FIN_WAIT },
194 { "tcp.closed", PFTM_TCP_CLOSED },
195 { "tcp.tsdiff", PFTM_TS_DIFF },
196 { "udp.first", PFTM_UDP_FIRST_PACKET },
197 { "udp.single", PFTM_UDP_SINGLE },
198 { "udp.multiple", PFTM_UDP_MULTIPLE },
199 { "icmp.first", PFTM_ICMP_FIRST_PACKET },
200 { "icmp.error", PFTM_ICMP_ERROR_REPLY },
201 { "other.first", PFTM_OTHER_FIRST_PACKET },
202 { "other.single", PFTM_OTHER_SINGLE },
203 { "other.multiple", PFTM_OTHER_MULTIPLE },
204 { "frag", PFTM_FRAG },
205 { "interval", PFTM_INTERVAL },
206 { "adaptive.start", PFTM_ADAPTIVE_START },
207 { "adaptive.end", PFTM_ADAPTIVE_END },
208 { "src.track", PFTM_SRC_NODE },
212 static struct hsearch_data isgroup_map;
214 static __attribute__((constructor)) void
215 pfctl_parser_init(void)
218 * As hdestroy() will never be called on these tables, it will be
219 * safe to use references into the stored data as keys.
221 if (hcreate_r(0, &isgroup_map) == 0)
222 err(1, "Failed to create interface group query response map");
225 const struct icmptypeent *
226 geticmptypebynumber(u_int8_t type, sa_family_t af)
230 if (af != AF_INET6) {
231 for (i=0; i < nitems(icmp_type); i++) {
232 if (type == icmp_type[i].type)
233 return (&icmp_type[i]);
236 for (i=0; i < nitems(icmp6_type); i++) {
237 if (type == icmp6_type[i].type)
238 return (&icmp6_type[i]);
244 const struct icmptypeent *
245 geticmptypebyname(char *w, sa_family_t af)
249 if (af != AF_INET6) {
250 for (i=0; i < nitems(icmp_type); i++) {
251 if (!strcmp(w, icmp_type[i].name))
252 return (&icmp_type[i]);
255 for (i=0; i < nitems(icmp6_type); i++) {
256 if (!strcmp(w, icmp6_type[i].name))
257 return (&icmp6_type[i]);
263 const struct icmpcodeent *
264 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af)
268 if (af != AF_INET6) {
269 for (i=0; i < nitems(icmp_code); i++) {
270 if (type == icmp_code[i].type &&
271 code == icmp_code[i].code)
272 return (&icmp_code[i]);
275 for (i=0; i < nitems(icmp6_code); i++) {
276 if (type == icmp6_code[i].type &&
277 code == icmp6_code[i].code)
278 return (&icmp6_code[i]);
284 const struct icmpcodeent *
285 geticmpcodebyname(u_long type, char *w, sa_family_t af)
289 if (af != AF_INET6) {
290 for (i=0; i < nitems(icmp_code); i++) {
291 if (type == icmp_code[i].type &&
292 !strcmp(w, icmp_code[i].name))
293 return (&icmp_code[i]);
296 for (i=0; i < nitems(icmp6_code); i++) {
297 if (type == icmp6_code[i].type &&
298 !strcmp(w, icmp6_code[i].name))
299 return (&icmp6_code[i]);
306 print_op(u_int8_t op, const char *a1, const char *a2)
309 printf(" %s >< %s", a1, a2);
310 else if (op == PF_OP_XRG)
311 printf(" %s <> %s", a1, a2);
312 else if (op == PF_OP_EQ)
314 else if (op == PF_OP_NE)
315 printf(" != %s", a1);
316 else if (op == PF_OP_LT)
318 else if (op == PF_OP_LE)
319 printf(" <= %s", a1);
320 else if (op == PF_OP_GT)
322 else if (op == PF_OP_GE)
323 printf(" >= %s", a1);
324 else if (op == PF_OP_RRG)
325 printf(" %s:%s", a1, a2);
329 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int numeric)
335 s = getservbyport(p1, proto);
340 snprintf(a1, sizeof(a1), "%u", p1);
341 snprintf(a2, sizeof(a2), "%u", p2);
343 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE))
344 print_op(op, s->s_name, a2);
346 print_op(op, a1, a2);
350 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax)
354 snprintf(a1, sizeof(a1), "%u", u1);
355 snprintf(a2, sizeof(a2), "%u", u2);
357 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE))
358 print_op(op, "unknown", a2);
360 print_op(op, a1, a2);
364 print_flags(u_int8_t f)
368 for (i = 0; tcpflags[i]; ++i)
370 printf("%c", tcpflags[i]);
374 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
375 sa_family_t af, u_int8_t proto, int verbose, int numeric)
377 char buf[PF_OSFP_LEN*3];
378 if (src->addr.type == PF_ADDR_ADDRMASK &&
379 dst->addr.type == PF_ADDR_ADDRMASK &&
380 PF_AZERO(&src->addr.v.a.addr, AF_INET6) &&
381 PF_AZERO(&src->addr.v.a.mask, AF_INET6) &&
382 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) &&
383 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) &&
384 !src->neg && !dst->neg &&
385 !src->port_op && !dst->port_op &&
392 print_addr(&src->addr, af, verbose);
394 print_port(src->port_op, src->port[0],
396 proto == IPPROTO_TCP ? "tcp" : "udp",
398 if (osfp != PF_OSFP_ANY)
399 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf,
405 print_addr(&dst->addr, af, verbose);
407 print_port(dst->port_op, dst->port[0],
409 proto == IPPROTO_TCP ? "tcp" : "udp",
415 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2,
416 sa_family_t af, int id)
418 struct pf_pooladdr *pooladdr;
420 if ((TAILQ_FIRST(&pool->list) != NULL) &&
421 TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL)
423 TAILQ_FOREACH(pooladdr, &pool->list, entries){
428 print_addr(&pooladdr->addr, af, 0);
431 if (PF_AZERO(&pooladdr->addr.v.a.addr, af))
432 printf("%s", pooladdr->ifname);
434 printf("(%s ", pooladdr->ifname);
435 print_addr(&pooladdr->addr, af, 0);
442 if (TAILQ_NEXT(pooladdr, entries) != NULL)
444 else if (TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL)
449 if ((p1 != PF_NAT_PROXY_PORT_LOW ||
450 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) {
452 printf(" port %u", p1);
454 printf(" port %u:%u", p1, p2);
459 printf(" port %u", p1);
460 if (p2 && (p2 != p1))
467 switch (pool->opts & PF_POOL_TYPEMASK) {
470 case PF_POOL_BITMASK:
476 case PF_POOL_SRCHASH:
477 printf(" source-hash 0x%08x%08x%08x%08x",
478 pool->key.key32[0], pool->key.key32[1],
479 pool->key.key32[2], pool->key.key32[3]);
481 case PF_POOL_ROUNDROBIN:
482 printf(" round-robin");
485 if (pool->opts & PF_POOL_STICKYADDR)
486 printf(" sticky-address");
487 if (id == PF_NAT && p1 == 0 && p2 == 0)
488 printf(" static-port");
491 const char * const pf_reasons[PFRES_MAX+1] = PFRES_NAMES;
492 const char * const pf_lcounters[LCNT_MAX+1] = LCNT_NAMES;
493 const char * const pf_fcounters[FCNT_MAX+1] = FCNT_NAMES;
494 const char * const pf_scounters[FCNT_MAX+1] = FCNT_NAMES;
497 print_status(struct pf_status *s, int opts)
499 char statline[80], *running;
502 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1];
503 static const char hex[] = "0123456789abcdef";
505 runtime = time(NULL) - s->since;
506 running = s->running ? "Enabled" : "Disabled";
509 unsigned int sec, min, hrs, day = runtime;
517 snprintf(statline, sizeof(statline),
518 "Status: %s for %u days %.2u:%.2u:%.2u",
519 running, day, hrs, min, sec);
521 snprintf(statline, sizeof(statline), "Status: %s", running);
522 printf("%-44s", statline);
525 printf("%15s\n\n", "Debug: None");
527 case PF_DEBUG_URGENT:
528 printf("%15s\n\n", "Debug: Urgent");
531 printf("%15s\n\n", "Debug: Misc");
534 printf("%15s\n\n", "Debug: Loud");
538 if (opts & PF_OPT_VERBOSE) {
539 printf("Hostid: 0x%08x\n", ntohl(s->hostid));
541 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) {
542 buf[i + i] = hex[s->pf_chksum[i] >> 4];
543 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f];
546 printf("Checksum: 0x%s\n\n", buf);
549 if (s->ifname[0] != 0) {
550 printf("Interface Stats for %-16s %5s %16s\n",
551 s->ifname, "IPv4", "IPv6");
552 printf(" %-25s %14llu %16llu\n", "Bytes In",
553 (unsigned long long)s->bcounters[0][0],
554 (unsigned long long)s->bcounters[1][0]);
555 printf(" %-25s %14llu %16llu\n", "Bytes Out",
556 (unsigned long long)s->bcounters[0][1],
557 (unsigned long long)s->bcounters[1][1]);
558 printf(" Packets In\n");
559 printf(" %-23s %14llu %16llu\n", "Passed",
560 (unsigned long long)s->pcounters[0][0][PF_PASS],
561 (unsigned long long)s->pcounters[1][0][PF_PASS]);
562 printf(" %-23s %14llu %16llu\n", "Blocked",
563 (unsigned long long)s->pcounters[0][0][PF_DROP],
564 (unsigned long long)s->pcounters[1][0][PF_DROP]);
565 printf(" Packets Out\n");
566 printf(" %-23s %14llu %16llu\n", "Passed",
567 (unsigned long long)s->pcounters[0][1][PF_PASS],
568 (unsigned long long)s->pcounters[1][1][PF_PASS]);
569 printf(" %-23s %14llu %16llu\n\n", "Blocked",
570 (unsigned long long)s->pcounters[0][1][PF_DROP],
571 (unsigned long long)s->pcounters[1][1][PF_DROP]);
573 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate");
574 printf(" %-25s %14u %14s\n", "current entries", s->states, "");
575 for (i = 0; i < FCNT_MAX; i++) {
576 printf(" %-25s %14llu ", pf_fcounters[i],
577 (unsigned long long)s->fcounters[i]);
580 (double)s->fcounters[i] / (double)runtime);
582 printf("%14s\n", "");
584 if (opts & PF_OPT_VERBOSE) {
585 printf("Source Tracking Table\n");
586 printf(" %-25s %14u %14s\n", "current entries",
588 for (i = 0; i < SCNT_MAX; i++) {
589 printf(" %-25s %14lld ", pf_scounters[i],
591 (long long)s->scounters[i]);
597 (double)s->scounters[i] / (double)runtime);
599 printf("%14s\n", "");
602 printf("Counters\n");
603 for (i = 0; i < PFRES_MAX; i++) {
604 printf(" %-25s %14llu ", pf_reasons[i],
605 (unsigned long long)s->counters[i]);
608 (double)s->counters[i] / (double)runtime);
610 printf("%14s\n", "");
612 if (opts & PF_OPT_VERBOSE) {
613 printf("Limit Counters\n");
614 for (i = 0; i < LCNT_MAX; i++) {
615 printf(" %-25s %14lld ", pf_lcounters[i],
617 (unsigned long long)s->lcounters[i]);
623 (double)s->lcounters[i] / (double)runtime);
625 printf("%14s\n", "");
631 print_running(struct pf_status *status)
633 printf("%s\n", status->running ? "Enabled" : "Disabled");
637 print_src_node(struct pf_src_node *sn, int opts)
639 struct pf_addr_wrap aw;
642 memset(&aw, 0, sizeof(aw));
643 if (sn->af == AF_INET)
644 aw.v.a.mask.addr32[0] = 0xffffffff;
646 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
648 aw.v.a.addr = sn->addr;
649 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2);
651 aw.v.a.addr = sn->raddr;
652 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2);
653 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states,
654 sn->conn, sn->conn_rate.count / 1000,
655 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds);
656 if (opts & PF_OPT_VERBOSE) {
657 sec = sn->creation % 60;
659 min = sn->creation % 60;
661 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec);
662 if (sn->states == 0) {
663 sec = sn->expire % 60;
665 min = sn->expire % 60;
667 printf(", expires in %.2u:%.2u:%.2u",
668 sn->expire, min, sec);
670 printf(", %llu pkts, %llu bytes",
672 (unsigned long long)(sn->packets[0] + sn->packets[1]),
673 (unsigned long long)(sn->bytes[0] + sn->bytes[1]));
675 sn->packets[0] + sn->packets[1],
676 sn->bytes[0] + sn->bytes[1]);
678 switch (sn->ruletype) {
680 if (sn->rule.nr != -1)
681 printf(", nat rule %u", sn->rule.nr);
684 if (sn->rule.nr != -1)
685 printf(", rdr rule %u", sn->rule.nr);
688 if (sn->rule.nr != -1)
689 printf(", filter rule %u", sn->rule.nr);
697 print_rule(struct pf_rule *r, const char *anchor_call, int verbose, int numeric)
699 static const char *actiontypes[] = { "pass", "block", "scrub",
700 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" };
701 static const char *anchortypes[] = { "anchor", "anchor", "anchor",
702 "anchor", "nat-anchor", "nat-anchor", "binat-anchor",
703 "binat-anchor", "rdr-anchor", "rdr-anchor" };
707 printf("@%d ", r->nr);
708 if (r->action > PF_NORDR)
709 printf("action(%d)", r->action);
710 else if (anchor_call[0]) {
711 if (anchor_call[0] == '_') {
712 printf("%s", anchortypes[r->action]);
714 printf("%s \"%s\"", anchortypes[r->action],
717 printf("%s", actiontypes[r->action]);
721 if (r->action == PF_DROP) {
722 if (r->rule_flag & PFRULE_RETURN)
724 else if (r->rule_flag & PFRULE_RETURNRST) {
726 printf(" return-rst");
728 printf(" return-rst(ttl %d)", r->return_ttl);
729 } else if (r->rule_flag & PFRULE_RETURNICMP) {
730 const struct icmpcodeent *ic, *ic6;
732 ic = geticmpcodebynumber(r->return_icmp >> 8,
733 r->return_icmp & 255, AF_INET);
734 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8,
735 r->return_icmp6 & 255, AF_INET6);
739 printf(" return-icmp");
741 printf("(%u)", r->return_icmp & 255);
743 printf("(%s)", ic->name);
746 printf(" return-icmp6");
748 printf("(%u)", r->return_icmp6 & 255);
750 printf("(%s)", ic6->name);
753 printf(" return-icmp");
755 printf("(%u, ", r->return_icmp & 255);
757 printf("(%s, ", ic->name);
759 printf("%u)", r->return_icmp6 & 255);
761 printf("%s)", ic6->name);
767 if (r->direction == PF_IN)
769 else if (r->direction == PF_OUT)
773 if (r->log & ~PF_LOG || r->logif) {
777 if (r->log & PF_LOG_ALL)
778 printf("%sall", count++ ? ", " : "");
779 if (r->log & PF_LOG_SOCKET_LOOKUP)
780 printf("%suser", count++ ? ", " : "");
782 printf("%sto pflog%u", count++ ? ", " : "",
791 printf(" on ! %s", r->ifname);
793 printf(" on %s", r->ifname);
796 if (r->rt == PF_ROUTETO)
798 else if (r->rt == PF_REPLYTO)
800 else if (r->rt == PF_DUPTO)
803 print_pool(&r->rpool, 0, 0, r->af, PF_PASS);
806 if (r->af == AF_INET)
814 if ((p = getprotobynumber(r->proto)) != NULL)
815 printf(" proto %s", p->p_name);
817 printf(" proto %u", r->proto);
819 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto,
822 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user",
825 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group",
827 if (r->flags || r->flagset) {
829 print_flags(r->flags);
831 print_flags(r->flagset);
832 } else if (r->action == PF_PASS &&
833 (!r->proto || r->proto == IPPROTO_TCP) &&
834 !(r->rule_flag & PFRULE_FRAGMENT) &&
835 !anchor_call[0] && r->keep_state)
836 printf(" flags any");
838 const struct icmptypeent *it;
840 it = geticmptypebynumber(r->type-1, r->af);
841 if (r->af != AF_INET6)
842 printf(" icmp-type");
844 printf(" icmp6-type");
846 printf(" %s", it->name);
848 printf(" %u", r->type-1);
850 const struct icmpcodeent *ic;
852 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af);
854 printf(" code %s", ic->name);
856 printf(" code %u", r->code-1);
860 printf(" tos 0x%2.2x", r->tos);
862 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio);
863 if (r->scrub_flags & PFSTATE_SETMASK) {
866 if (r->scrub_flags & PFSTATE_SETPRIO) {
867 if (r->set_prio[0] == r->set_prio[1])
868 printf("%s prio %u", comma, r->set_prio[0]);
870 printf("%s prio(%u, %u)", comma, r->set_prio[0],
876 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0])
878 else if (r->keep_state == PF_STATE_NORMAL)
879 printf(" keep state");
880 else if (r->keep_state == PF_STATE_MODULATE)
881 printf(" modulate state");
882 else if (r->keep_state == PF_STATE_SYNPROXY)
883 printf(" synproxy state");
887 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0));
888 for (i = strlen(buf)-1; i > 0; i--) {
897 printf(" probability %s%%", buf);
900 if (r->max_states || r->max_src_nodes || r->max_src_states)
902 if (r->rule_flag & PFRULE_NOSYNC)
904 if (r->rule_flag & PFRULE_SRCTRACK)
906 if (r->rule_flag & PFRULE_IFBOUND)
908 if (r->rule_flag & PFRULE_STATESLOPPY)
910 for (i = 0; !opts && i < PFTM_MAX; ++i)
916 printf("max %u", r->max_states);
919 if (r->rule_flag & PFRULE_NOSYNC) {
925 if (r->rule_flag & PFRULE_SRCTRACK) {
928 printf("source-track");
929 if (r->rule_flag & PFRULE_RULESRCTRACK)
935 if (r->max_src_states) {
938 printf("max-src-states %u", r->max_src_states);
941 if (r->max_src_conn) {
944 printf("max-src-conn %u", r->max_src_conn);
947 if (r->max_src_conn_rate.limit) {
950 printf("max-src-conn-rate %u/%u",
951 r->max_src_conn_rate.limit,
952 r->max_src_conn_rate.seconds);
955 if (r->max_src_nodes) {
958 printf("max-src-nodes %u", r->max_src_nodes);
961 if (r->overload_tblname[0]) {
964 printf("overload <%s>", r->overload_tblname);
967 if (r->flush & PF_FLUSH_GLOBAL)
970 if (r->rule_flag & PFRULE_IFBOUND) {
976 if (r->rule_flag & PFRULE_STATESLOPPY) {
982 for (i = 0; i < PFTM_MAX; ++i)
989 for (j = 0; pf_timeouts[j].name != NULL;
991 if (pf_timeouts[j].timeout == i)
993 printf("%s %u", pf_timeouts[j].name == NULL ?
994 "inv.timeout" : pf_timeouts[j].name,
999 if (r->rule_flag & PFRULE_FRAGMENT)
1000 printf(" fragment");
1001 if (r->rule_flag & PFRULE_NODF)
1003 if (r->rule_flag & PFRULE_RANDOMID)
1004 printf(" random-id");
1006 printf(" min-ttl %d", r->min_ttl);
1008 printf(" max-mss %d", r->max_mss);
1009 if (r->rule_flag & PFRULE_SET_TOS)
1010 printf(" set-tos 0x%2.2x", r->set_tos);
1012 printf(" allow-opts");
1013 if (r->action == PF_SCRUB) {
1014 if (r->rule_flag & PFRULE_REASSEMBLE_TCP)
1015 printf(" reassemble tcp");
1017 printf(" fragment reassemble");
1020 printf(" label \"%s\"", r->label);
1021 if (r->qname[0] && r->pqname[0])
1022 printf(" queue(%s, %s)", r->qname, r->pqname);
1023 else if (r->qname[0])
1024 printf(" queue %s", r->qname);
1026 printf(" tag %s", r->tagname);
1027 if (r->match_tagname[0]) {
1028 if (r->match_tag_not)
1030 printf(" tagged %s", r->match_tagname);
1032 if (r->rtableid != -1)
1033 printf(" rtable %u", r->rtableid);
1034 if (r->divert.port) {
1036 printf(" divert-to %u", ntohs(r->divert.port));
1038 if (PF_AZERO(&r->divert.addr, r->af)) {
1039 printf(" divert-reply");
1041 /* XXX cut&paste from print_addr */
1044 printf(" divert-to ");
1045 if (inet_ntop(r->af, &r->divert.addr, buf,
1046 sizeof(buf)) == NULL)
1050 printf(" port %u", ntohs(r->divert.port));
1054 if (!anchor_call[0] && (r->action == PF_NAT ||
1055 r->action == PF_BINAT || r->action == PF_RDR)) {
1057 print_pool(&r->rpool, r->rpool.proxy_port[0],
1058 r->rpool.proxy_port[1], r->af, r->action);
1063 print_tabledef(const char *name, int flags, int addrs,
1064 struct node_tinithead *nodes)
1066 struct node_tinit *ti, *nti;
1067 struct node_host *h;
1069 printf("table <%s>", name);
1070 if (flags & PFR_TFLAG_CONST)
1072 if (flags & PFR_TFLAG_PERSIST)
1074 if (flags & PFR_TFLAG_COUNTERS)
1075 printf(" counters");
1076 SIMPLEQ_FOREACH(ti, nodes, entries) {
1078 printf(" file \"%s\"", ti->file);
1083 for (h = ti->host; h != NULL; h = h->next) {
1084 printf(h->not ? " !" : " ");
1085 print_addr(&h->addr, h->af, 0);
1087 nti = SIMPLEQ_NEXT(ti, entries);
1088 if (nti != NULL && nti->file == NULL)
1089 ti = nti; /* merge lists */
1095 if (addrs && SIMPLEQ_EMPTY(nodes))
1101 parse_flags(char *s)
1106 for (p = s; *p; p++) {
1107 if ((q = strchr(tcpflags, *p)) == NULL)
1110 f |= 1 << (q - tcpflags);
1112 return (f ? f : PF_TH_ALL);
1116 set_ipmask(struct node_host *h, u_int8_t b)
1118 struct pf_addr *m, *n;
1121 m = &h->addr.v.a.mask;
1122 memset(m, 0, sizeof(*m));
1125 m->addr32[j++] = 0xffffffff;
1128 for (i = 31; i > 31-b; --i)
1129 m->addr32[j] |= (1 << i);
1131 m->addr32[j] = htonl(m->addr32[j]);
1133 /* Mask off bits of the address that will never be used. */
1134 n = &h->addr.v.a.addr;
1135 if (h->addr.type == PF_ADDR_ADDRMASK)
1136 for (i = 0; i < 4; i++)
1137 n->addr32[i] = n->addr32[i] & m->addr32[i];
1141 check_netmask(struct node_host *h, sa_family_t af)
1143 struct node_host *n = NULL;
1146 for (n = h; n != NULL; n = n->next) {
1147 if (h->addr.type == PF_ADDR_TABLE)
1149 m = &h->addr.v.a.mask;
1150 /* fix up netmask for dynaddr */
1151 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL &&
1152 unmask(m, AF_INET6) > 32)
1154 /* netmasks > 32 bit are invalid on v4 */
1155 if (af == AF_INET &&
1156 (m->addr32[1] || m->addr32[2] || m->addr32[3])) {
1157 fprintf(stderr, "netmask %u invalid for IPv4 address\n",
1158 unmask(m, AF_INET6));
1165 /* interface lookup routines */
1167 static struct node_host *iftab;
1170 * Retrieve the list of groups this interface is a member of and make sure
1171 * each group is in the group map.
1174 ifa_add_groups_to_map(char *ifa_name)
1177 struct ifgroupreq ifgr;
1178 struct ifg_req *ifg;
1180 s = get_query_socket();
1182 /* Get size of group list for this interface */
1183 memset(&ifgr, 0, sizeof(ifgr));
1184 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ);
1185 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
1186 err(1, "SIOCGIFGROUP");
1188 /* Retrieve group list for this interface */
1189 len = ifgr.ifgr_len;
1191 (struct ifg_req *)calloc(len / sizeof(struct ifg_req),
1192 sizeof(struct ifg_req));
1193 if (ifgr.ifgr_groups == NULL)
1195 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
1196 err(1, "SIOCGIFGROUP");
1198 ifg = ifgr.ifgr_groups;
1199 for (; ifg && len >= sizeof(struct ifg_req); ifg++) {
1200 len -= sizeof(struct ifg_req);
1201 if (strcmp(ifg->ifgrq_group, "all")) {
1206 item.key = ifg->ifgrq_group;
1207 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) {
1208 struct ifgroupreq ifgr2;
1210 /* Don't know the answer yet */
1211 if ((answer = malloc(sizeof(int))) == NULL)
1214 bzero(&ifgr2, sizeof(ifgr2));
1215 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group,
1216 sizeof(ifgr2.ifgr_name));
1217 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0)
1218 *answer = ifgr2.ifgr_len;
1222 item.key = strdup(ifg->ifgrq_group);
1224 if (hsearch_r(item, ENTER, &ret_item,
1226 err(1, "interface group query response"
1231 free(ifgr.ifgr_groups);
1237 struct ifaddrs *ifap, *ifa;
1238 struct node_host *n = NULL, *h = NULL;
1240 if (getifaddrs(&ifap) < 0)
1241 err(1, "getifaddrs");
1243 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
1244 if (!(ifa->ifa_addr->sa_family == AF_INET ||
1245 ifa->ifa_addr->sa_family == AF_INET6 ||
1246 ifa->ifa_addr->sa_family == AF_LINK))
1248 n = calloc(1, sizeof(struct node_host));
1250 err(1, "address: calloc");
1251 n->af = ifa->ifa_addr->sa_family;
1252 n->ifa_flags = ifa->ifa_flags;
1254 if (n->af == AF_INET6 &&
1255 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *)
1256 ifa->ifa_addr)->sin6_addr) &&
1257 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id ==
1259 struct sockaddr_in6 *sin6;
1261 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1262 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 |
1263 sin6->sin6_addr.s6_addr[3];
1264 sin6->sin6_addr.s6_addr[2] = 0;
1265 sin6->sin6_addr.s6_addr[3] = 0;
1269 if (n->af == AF_INET) {
1270 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *)
1271 ifa->ifa_addr)->sin_addr.s_addr,
1272 sizeof(struct in_addr));
1273 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *)
1274 ifa->ifa_netmask)->sin_addr.s_addr,
1275 sizeof(struct in_addr));
1276 if (ifa->ifa_broadaddr != NULL)
1277 memcpy(&n->bcast, &((struct sockaddr_in *)
1278 ifa->ifa_broadaddr)->sin_addr.s_addr,
1279 sizeof(struct in_addr));
1280 if (ifa->ifa_dstaddr != NULL)
1281 memcpy(&n->peer, &((struct sockaddr_in *)
1282 ifa->ifa_dstaddr)->sin_addr.s_addr,
1283 sizeof(struct in_addr));
1284 } else if (n->af == AF_INET6) {
1285 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *)
1286 ifa->ifa_addr)->sin6_addr.s6_addr,
1287 sizeof(struct in6_addr));
1288 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *)
1289 ifa->ifa_netmask)->sin6_addr.s6_addr,
1290 sizeof(struct in6_addr));
1291 if (ifa->ifa_broadaddr != NULL)
1292 memcpy(&n->bcast, &((struct sockaddr_in6 *)
1293 ifa->ifa_broadaddr)->sin6_addr.s6_addr,
1294 sizeof(struct in6_addr));
1295 if (ifa->ifa_dstaddr != NULL)
1296 memcpy(&n->peer, &((struct sockaddr_in6 *)
1297 ifa->ifa_dstaddr)->sin6_addr.s6_addr,
1298 sizeof(struct in6_addr));
1299 n->ifindex = ((struct sockaddr_in6 *)
1300 ifa->ifa_addr)->sin6_scope_id;
1301 } else if (n->af == AF_LINK) {
1302 ifa_add_groups_to_map(ifa->ifa_name);
1304 if ((n->ifname = strdup(ifa->ifa_name)) == NULL)
1305 err(1, "ifa_load: strdup");
1321 get_socket_domain(void)
1327 if (sdom == AF_UNSPEC && feature_present("inet6"))
1331 if (sdom == AF_UNSPEC && feature_present("inet"))
1334 if (sdom == AF_UNSPEC)
1341 get_query_socket(void)
1346 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1)
1354 * Returns the response len if the name is a group, otherwise returns 0.
1357 is_a_group(char *name)
1363 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0)
1366 return (*(int *)ret_item->data);
1370 ifa_exists(char *ifa_name)
1372 struct node_host *n;
1377 /* check whether this is a group */
1378 if (is_a_group(ifa_name)) {
1379 /* fake a node_host */
1380 if ((n = calloc(1, sizeof(*n))) == NULL)
1382 if ((n->ifname = strdup(ifa_name)) == NULL)
1387 for (n = iftab; n; n = n->next) {
1388 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ))
1396 ifa_grouplookup(char *ifa_name, int flags)
1398 struct ifg_req *ifg;
1399 struct ifgroupreq ifgr;
1401 struct node_host *n, *h = NULL;
1403 s = get_query_socket();
1404 len = is_a_group(ifa_name);
1407 bzero(&ifgr, sizeof(ifgr));
1408 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
1409 ifgr.ifgr_len = len;
1410 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL)
1412 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1)
1413 err(1, "SIOCGIFGMEMB");
1415 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req);
1417 len -= sizeof(struct ifg_req);
1418 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL)
1427 free(ifgr.ifgr_groups);
1433 ifa_lookup(char *ifa_name, int flags)
1435 struct node_host *p = NULL, *h = NULL, *n = NULL;
1436 int got4 = 0, got6 = 0;
1437 const char *last_if = NULL;
1439 /* first load iftab and isgroup_map */
1443 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL)
1446 if (!strncmp(ifa_name, "self", IFNAMSIZ))
1449 for (p = iftab; p; p = p->next) {
1450 if (ifa_skip_if(ifa_name, p))
1452 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET)
1454 if ((flags & PFI_AFLAG_BROADCAST) &&
1455 !(p->ifa_flags & IFF_BROADCAST))
1457 if ((flags & PFI_AFLAG_PEER) &&
1458 !(p->ifa_flags & IFF_POINTOPOINT))
1460 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0)
1462 if (last_if == NULL || strcmp(last_if, p->ifname))
1464 last_if = p->ifname;
1465 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4)
1467 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 &&
1468 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6))
1470 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6)
1472 if (p->af == AF_INET)
1476 n = calloc(1, sizeof(struct node_host));
1478 err(1, "address: calloc");
1480 if (flags & PFI_AFLAG_BROADCAST)
1481 memcpy(&n->addr.v.a.addr, &p->bcast,
1482 sizeof(struct pf_addr));
1483 else if (flags & PFI_AFLAG_PEER)
1484 memcpy(&n->addr.v.a.addr, &p->peer,
1485 sizeof(struct pf_addr));
1487 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr,
1488 sizeof(struct pf_addr));
1489 if (flags & PFI_AFLAG_NETWORK)
1490 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af));
1492 if (n->af == AF_INET) {
1493 if (p->ifa_flags & IFF_LOOPBACK &&
1494 p->ifa_flags & IFF_LINK1)
1495 memcpy(&n->addr.v.a.mask,
1497 sizeof(struct pf_addr));
1503 n->ifindex = p->ifindex;
1504 n->ifname = strdup(p->ifname);
1519 ifa_skip_if(const char *filter, struct node_host *p)
1523 if (p->af != AF_INET && p->af != AF_INET6)
1525 if (filter == NULL || !*filter)
1527 if (!strcmp(p->ifname, filter))
1528 return (0); /* exact match */
1530 if (n < 1 || n >= IFNAMSIZ)
1531 return (1); /* sanity check */
1532 if (filter[n-1] >= '0' && filter[n-1] <= '9')
1533 return (1); /* only do exact match in that case */
1534 if (strncmp(p->ifname, filter, n))
1535 return (1); /* prefix doesn't match */
1536 return (p->ifname[n] < '0' || p->ifname[n] > '9');
1543 struct node_host *h = NULL;
1544 int mask, v4mask, v6mask, cont = 1;
1547 if ((p = strrchr(s, '/')) != NULL) {
1548 mask = strtol(p+1, &q, 0);
1549 if (!q || *q || mask > 128 || q == (p+1)) {
1550 fprintf(stderr, "invalid netmask '%s'\n", p);
1553 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL)
1554 err(1, "host: malloc");
1555 strlcpy(ps, s, strlen(s) - strlen(p) + 1);
1556 v4mask = v6mask = mask;
1558 if ((ps = strdup(s)) == NULL)
1559 err(1, "host: strdup");
1566 if (cont && (h = host_v4(s, mask)) != NULL)
1570 if (cont && (h = host_v6(ps, v6mask)) != NULL)
1573 /* interface with this name exists? */
1574 /* expensive with thousands of interfaces - prioritze IPv4/6 check */
1575 if (cont && (h = host_if(ps, mask)) != NULL)
1579 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL)
1583 if (h == NULL || cont == 1) {
1584 fprintf(stderr, "no IP address found for %s\n", s);
1591 host_if(const char *s, int mask)
1593 struct node_host *n, *h = NULL;
1597 if ((ps = strdup(s)) == NULL)
1598 err(1, "host_if: strdup");
1599 while ((p = strrchr(ps, ':')) != NULL) {
1600 if (!strcmp(p+1, "network"))
1601 flags |= PFI_AFLAG_NETWORK;
1602 else if (!strcmp(p+1, "broadcast"))
1603 flags |= PFI_AFLAG_BROADCAST;
1604 else if (!strcmp(p+1, "peer"))
1605 flags |= PFI_AFLAG_PEER;
1606 else if (!strcmp(p+1, "0"))
1607 flags |= PFI_AFLAG_NOALIAS;
1614 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */
1615 fprintf(stderr, "illegal combination of interface modifiers\n");
1619 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) {
1620 fprintf(stderr, "network or broadcast lookup, but "
1621 "extra netmask given\n");
1625 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) {
1626 /* interface with this name exists */
1627 h = ifa_lookup(ps, flags);
1628 for (n = h; n != NULL && mask > -1; n = n->next)
1629 set_ipmask(n, mask);
1637 host_v4(const char *s, int mask)
1639 struct node_host *h = NULL;
1643 memset(&ina, 0, sizeof(struct in_addr));
1644 if (strrchr(s, '/') != NULL) {
1645 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1)
1648 if (inet_pton(AF_INET, s, &ina) != 1)
1652 h = calloc(1, sizeof(struct node_host));
1654 err(1, "address: calloc");
1657 h->addr.v.a.addr.addr32[0] = ina.s_addr;
1658 set_ipmask(h, bits);
1666 host_v6(const char *s, int mask)
1668 struct addrinfo hints, *res;
1669 struct node_host *h = NULL;
1671 memset(&hints, 0, sizeof(hints));
1672 hints.ai_family = AF_INET6;
1673 hints.ai_socktype = SOCK_DGRAM; /*dummy*/
1674 hints.ai_flags = AI_NUMERICHOST;
1675 if (getaddrinfo(s, "0", &hints, &res) == 0) {
1676 h = calloc(1, sizeof(struct node_host));
1678 err(1, "address: calloc");
1681 memcpy(&h->addr.v.a.addr,
1682 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr,
1683 sizeof(h->addr.v.a.addr));
1685 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
1686 set_ipmask(h, mask);
1696 host_dns(const char *s, int v4mask, int v6mask)
1698 struct addrinfo hints, *res0, *res;
1699 struct node_host *n, *h = NULL;
1700 int error, noalias = 0;
1701 int got4 = 0, got6 = 0;
1704 if ((ps = strdup(s)) == NULL)
1705 err(1, "host_dns: strdup");
1706 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) {
1710 memset(&hints, 0, sizeof(hints));
1711 hints.ai_family = PF_UNSPEC;
1712 hints.ai_socktype = SOCK_STREAM; /* DUMMY */
1713 error = getaddrinfo(ps, NULL, &hints, &res0);
1719 for (res = res0; res; res = res->ai_next) {
1720 if (res->ai_family != AF_INET &&
1721 res->ai_family != AF_INET6)
1724 if (res->ai_family == AF_INET) {
1734 n = calloc(1, sizeof(struct node_host));
1736 err(1, "host_dns: calloc");
1738 n->af = res->ai_family;
1739 if (res->ai_family == AF_INET) {
1740 memcpy(&n->addr.v.a.addr,
1741 &((struct sockaddr_in *)
1742 res->ai_addr)->sin_addr.s_addr,
1743 sizeof(struct in_addr));
1744 set_ipmask(n, v4mask);
1746 memcpy(&n->addr.v.a.addr,
1747 &((struct sockaddr_in6 *)
1748 res->ai_addr)->sin6_addr.s6_addr,
1749 sizeof(struct in6_addr));
1751 ((struct sockaddr_in6 *)
1752 res->ai_addr)->sin6_scope_id;
1753 set_ipmask(n, v6mask);
1771 * convert a hostname to a list of addresses and put them in the given buffer.
1773 * if set to 1, only simple addresses are accepted (no netblock, no "!").
1776 append_addr(struct pfr_buffer *b, char *s, int test)
1779 struct node_host *h, *n;
1782 for (r = s; *r == '!'; r++)
1784 if ((n = host(r)) == NULL) {
1788 rv = append_addr_host(b, n, test, not);
1793 } while (n != NULL);
1798 * same as previous function, but with a pre-parsed input and the ability
1799 * to "negate" the result. Does not free the node_host list.
1801 * setting it to 1 is equivalent to adding "!" in front of parameter s.
1804 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not)
1807 struct pfr_addr addr;
1810 bzero(&addr, sizeof(addr));
1811 addr.pfra_not = n->not ^ not;
1812 addr.pfra_af = n->af;
1813 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af);
1816 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0];
1820 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6,
1821 sizeof(struct in6_addr));
1828 if ((test && (not || addr.pfra_net != bits)) ||
1829 addr.pfra_net > bits) {
1833 if (pfr_buf_add(b, &addr))
1835 } while ((n = n->next) != NULL);
1841 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor)
1843 struct pfioc_trans_e trans;
1845 bzero(&trans, sizeof(trans));
1846 trans.rs_num = rs_num;
1847 if (strlcpy(trans.anchor, anchor,
1848 sizeof(trans.anchor)) >= sizeof(trans.anchor))
1849 errx(1, "pfctl_add_trans: strlcpy");
1851 return pfr_buf_add(buf, &trans);
1855 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor)
1857 struct pfioc_trans_e *p;
1859 PFRB_FOREACH(p, buf)
1860 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor))
1862 errx(1, "pfctl_get_ticket: assertion failed");
1866 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from)
1868 struct pfioc_trans trans;
1870 bzero(&trans, sizeof(trans));
1871 trans.size = buf->pfrb_size - from;
1872 trans.esize = sizeof(struct pfioc_trans_e);
1873 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from;
1874 return ioctl(dev, cmd, &trans);