1 /* $OpenBSD: pfctl_parser.c,v 1.240 2008/06/10 20:55:02 mcbride Exp $ */
4 * Copyright (c) 2001 Daniel Hartmeier
5 * Copyright (c) 2002,2003 Henning Brauer
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * - Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include <sys/types.h>
38 #include <sys/ioctl.h>
39 #include <sys/socket.h>
40 #include <sys/param.h>
43 #include <netinet/in.h>
44 #include <netinet/in_systm.h>
45 #include <netinet/ip.h>
46 #include <netinet/ip_icmp.h>
47 #include <netinet/icmp6.h>
48 #include <net/pfvar.h>
49 #include <arpa/inet.h>
62 #include "pfctl_parser.h"
65 void print_op (u_int8_t, const char *, const char *);
66 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int);
67 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned);
68 void print_flags (u_int8_t);
69 void print_fromto(struct pf_rule_addr *, pf_osfp_t,
70 struct pf_rule_addr *, u_int8_t, u_int8_t, int, int);
71 int ifa_skip_if(const char *filter, struct node_host *p);
73 struct node_host *ifa_grouplookup(const char *, int);
74 struct node_host *host_if(const char *, int);
75 struct node_host *host_v4(const char *, int);
76 struct node_host *host_v6(const char *, int);
77 struct node_host *host_dns(const char *, int, int);
79 const char *tcpflags = "FSRPAUEW";
81 static const struct icmptypeent icmp_type[] = {
82 { "echoreq", ICMP_ECHO },
83 { "echorep", ICMP_ECHOREPLY },
84 { "unreach", ICMP_UNREACH },
85 { "squench", ICMP_SOURCEQUENCH },
86 { "redir", ICMP_REDIRECT },
87 { "althost", ICMP_ALTHOSTADDR },
88 { "routeradv", ICMP_ROUTERADVERT },
89 { "routersol", ICMP_ROUTERSOLICIT },
90 { "timex", ICMP_TIMXCEED },
91 { "paramprob", ICMP_PARAMPROB },
92 { "timereq", ICMP_TSTAMP },
93 { "timerep", ICMP_TSTAMPREPLY },
94 { "inforeq", ICMP_IREQ },
95 { "inforep", ICMP_IREQREPLY },
96 { "maskreq", ICMP_MASKREQ },
97 { "maskrep", ICMP_MASKREPLY },
98 { "trace", ICMP_TRACEROUTE },
99 { "dataconv", ICMP_DATACONVERR },
100 { "mobredir", ICMP_MOBILE_REDIRECT },
101 { "ipv6-where", ICMP_IPV6_WHEREAREYOU },
102 { "ipv6-here", ICMP_IPV6_IAMHERE },
103 { "mobregreq", ICMP_MOBILE_REGREQUEST },
104 { "mobregrep", ICMP_MOBILE_REGREPLY },
105 { "skip", ICMP_SKIP },
106 { "photuris", ICMP_PHOTURIS }
109 static const struct icmptypeent icmp6_type[] = {
110 { "unreach", ICMP6_DST_UNREACH },
111 { "toobig", ICMP6_PACKET_TOO_BIG },
112 { "timex", ICMP6_TIME_EXCEEDED },
113 { "paramprob", ICMP6_PARAM_PROB },
114 { "echoreq", ICMP6_ECHO_REQUEST },
115 { "echorep", ICMP6_ECHO_REPLY },
116 { "groupqry", ICMP6_MEMBERSHIP_QUERY },
117 { "listqry", MLD_LISTENER_QUERY },
118 { "grouprep", ICMP6_MEMBERSHIP_REPORT },
119 { "listenrep", MLD_LISTENER_REPORT },
120 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION },
121 { "listendone", MLD_LISTENER_DONE },
122 { "routersol", ND_ROUTER_SOLICIT },
123 { "routeradv", ND_ROUTER_ADVERT },
124 { "neighbrsol", ND_NEIGHBOR_SOLICIT },
125 { "neighbradv", ND_NEIGHBOR_ADVERT },
126 { "redir", ND_REDIRECT },
127 { "routrrenum", ICMP6_ROUTER_RENUMBERING },
128 { "wrureq", ICMP6_WRUREQUEST },
129 { "wrurep", ICMP6_WRUREPLY },
130 { "fqdnreq", ICMP6_FQDN_QUERY },
131 { "fqdnrep", ICMP6_FQDN_REPLY },
132 { "niqry", ICMP6_NI_QUERY },
133 { "nirep", ICMP6_NI_REPLY },
134 { "mtraceresp", MLD_MTRACE_RESP },
135 { "mtrace", MLD_MTRACE }
138 static const struct icmpcodeent icmp_code[] = {
139 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET },
140 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST },
141 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL },
142 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT },
143 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG },
144 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL },
145 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN },
146 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN },
147 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED },
148 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB },
149 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB },
150 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET },
151 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST },
152 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB },
153 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE },
154 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF },
155 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET },
156 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST },
157 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET },
158 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST },
159 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL },
160 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON },
161 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS },
162 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS },
163 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR },
164 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT },
165 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH },
166 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX },
167 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED },
168 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED }
171 static const struct icmpcodeent icmp6_code[] = {
172 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN },
173 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE },
174 { "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR },
175 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE },
176 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR },
177 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT },
178 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT },
179 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY },
180 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER },
181 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER },
182 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK },
183 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER }
186 const struct pf_timeout pf_timeouts[] = {
187 { "tcp.first", PFTM_TCP_FIRST_PACKET },
188 { "tcp.opening", PFTM_TCP_OPENING },
189 { "tcp.established", PFTM_TCP_ESTABLISHED },
190 { "tcp.closing", PFTM_TCP_CLOSING },
191 { "tcp.finwait", PFTM_TCP_FIN_WAIT },
192 { "tcp.closed", PFTM_TCP_CLOSED },
193 { "tcp.tsdiff", PFTM_TS_DIFF },
194 { "udp.first", PFTM_UDP_FIRST_PACKET },
195 { "udp.single", PFTM_UDP_SINGLE },
196 { "udp.multiple", PFTM_UDP_MULTIPLE },
197 { "icmp.first", PFTM_ICMP_FIRST_PACKET },
198 { "icmp.error", PFTM_ICMP_ERROR_REPLY },
199 { "other.first", PFTM_OTHER_FIRST_PACKET },
200 { "other.single", PFTM_OTHER_SINGLE },
201 { "other.multiple", PFTM_OTHER_MULTIPLE },
202 { "frag", PFTM_FRAG },
203 { "interval", PFTM_INTERVAL },
204 { "adaptive.start", PFTM_ADAPTIVE_START },
205 { "adaptive.end", PFTM_ADAPTIVE_END },
206 { "src.track", PFTM_SRC_NODE },
210 const struct icmptypeent *
211 geticmptypebynumber(u_int8_t type, sa_family_t af)
215 if (af != AF_INET6) {
216 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0]));
218 if (type == icmp_type[i].type)
219 return (&icmp_type[i]);
222 for (i=0; i < (sizeof (icmp6_type) /
223 sizeof(icmp6_type[0])); i++) {
224 if (type == icmp6_type[i].type)
225 return (&icmp6_type[i]);
231 const struct icmptypeent *
232 geticmptypebyname(char *w, sa_family_t af)
236 if (af != AF_INET6) {
237 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0]));
239 if (!strcmp(w, icmp_type[i].name))
240 return (&icmp_type[i]);
243 for (i=0; i < (sizeof (icmp6_type) /
244 sizeof(icmp6_type[0])); i++) {
245 if (!strcmp(w, icmp6_type[i].name))
246 return (&icmp6_type[i]);
252 const struct icmpcodeent *
253 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af)
257 if (af != AF_INET6) {
258 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0]));
260 if (type == icmp_code[i].type &&
261 code == icmp_code[i].code)
262 return (&icmp_code[i]);
265 for (i=0; i < (sizeof (icmp6_code) /
266 sizeof(icmp6_code[0])); i++) {
267 if (type == icmp6_code[i].type &&
268 code == icmp6_code[i].code)
269 return (&icmp6_code[i]);
275 const struct icmpcodeent *
276 geticmpcodebyname(u_long type, char *w, sa_family_t af)
280 if (af != AF_INET6) {
281 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0]));
283 if (type == icmp_code[i].type &&
284 !strcmp(w, icmp_code[i].name))
285 return (&icmp_code[i]);
288 for (i=0; i < (sizeof (icmp6_code) /
289 sizeof(icmp6_code[0])); i++) {
290 if (type == icmp6_code[i].type &&
291 !strcmp(w, icmp6_code[i].name))
292 return (&icmp6_code[i]);
299 print_op(u_int8_t op, const char *a1, const char *a2)
302 printf(" %s >< %s", a1, a2);
303 else if (op == PF_OP_XRG)
304 printf(" %s <> %s", a1, a2);
305 else if (op == PF_OP_EQ)
307 else if (op == PF_OP_NE)
308 printf(" != %s", a1);
309 else if (op == PF_OP_LT)
311 else if (op == PF_OP_LE)
312 printf(" <= %s", a1);
313 else if (op == PF_OP_GT)
315 else if (op == PF_OP_GE)
316 printf(" >= %s", a1);
317 else if (op == PF_OP_RRG)
318 printf(" %s:%s", a1, a2);
322 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int numeric)
328 s = getservbyport(p1, proto);
333 snprintf(a1, sizeof(a1), "%u", p1);
334 snprintf(a2, sizeof(a2), "%u", p2);
336 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE))
337 print_op(op, s->s_name, a2);
339 print_op(op, a1, a2);
343 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax)
347 snprintf(a1, sizeof(a1), "%u", u1);
348 snprintf(a2, sizeof(a2), "%u", u2);
350 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE))
351 print_op(op, "unknown", a2);
353 print_op(op, a1, a2);
357 print_flags(u_int8_t f)
361 for (i = 0; tcpflags[i]; ++i)
363 printf("%c", tcpflags[i]);
367 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
368 sa_family_t af, u_int8_t proto, int verbose, int numeric)
370 char buf[PF_OSFP_LEN*3];
371 if (src->addr.type == PF_ADDR_ADDRMASK &&
372 dst->addr.type == PF_ADDR_ADDRMASK &&
373 PF_AZERO(&src->addr.v.a.addr, AF_INET6) &&
374 PF_AZERO(&src->addr.v.a.mask, AF_INET6) &&
375 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) &&
376 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) &&
377 !src->neg && !dst->neg &&
378 !src->port_op && !dst->port_op &&
385 print_addr(&src->addr, af, verbose);
387 print_port(src->port_op, src->port[0],
389 proto == IPPROTO_TCP ? "tcp" : "udp",
391 if (osfp != PF_OSFP_ANY)
392 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf,
398 print_addr(&dst->addr, af, verbose);
400 print_port(dst->port_op, dst->port[0],
402 proto == IPPROTO_TCP ? "tcp" : "udp",
408 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2,
409 sa_family_t af, int id)
411 struct pf_pooladdr *pooladdr;
413 if ((TAILQ_FIRST(&pool->list) != NULL) &&
414 TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL)
416 TAILQ_FOREACH(pooladdr, &pool->list, entries){
421 print_addr(&pooladdr->addr, af, 0);
424 if (PF_AZERO(&pooladdr->addr.v.a.addr, af))
425 printf("%s", pooladdr->ifname);
427 printf("(%s ", pooladdr->ifname);
428 print_addr(&pooladdr->addr, af, 0);
435 if (TAILQ_NEXT(pooladdr, entries) != NULL)
437 else if (TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL)
442 if ((p1 != PF_NAT_PROXY_PORT_LOW ||
443 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) {
445 printf(" port %u", p1);
447 printf(" port %u:%u", p1, p2);
452 printf(" port %u", p1);
453 if (p2 && (p2 != p1))
460 switch (pool->opts & PF_POOL_TYPEMASK) {
463 case PF_POOL_BITMASK:
469 case PF_POOL_SRCHASH:
470 printf(" source-hash 0x%08x%08x%08x%08x",
471 pool->key.key32[0], pool->key.key32[1],
472 pool->key.key32[2], pool->key.key32[3]);
474 case PF_POOL_ROUNDROBIN:
475 printf(" round-robin");
478 if (pool->opts & PF_POOL_STICKYADDR)
479 printf(" sticky-address");
480 if (id == PF_NAT && p1 == 0 && p2 == 0)
481 printf(" static-port");
484 const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES;
485 const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES;
486 const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES;
487 const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES;
490 print_status(struct pf_status *s, int opts)
492 char statline[80], *running;
495 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1];
496 static const char hex[] = "0123456789abcdef";
498 runtime = time(NULL) - s->since;
499 running = s->running ? "Enabled" : "Disabled";
502 unsigned int sec, min, hrs, day = runtime;
510 snprintf(statline, sizeof(statline),
511 "Status: %s for %u days %.2u:%.2u:%.2u",
512 running, day, hrs, min, sec);
514 snprintf(statline, sizeof(statline), "Status: %s", running);
515 printf("%-44s", statline);
518 printf("%15s\n\n", "Debug: None");
520 case PF_DEBUG_URGENT:
521 printf("%15s\n\n", "Debug: Urgent");
524 printf("%15s\n\n", "Debug: Misc");
527 printf("%15s\n\n", "Debug: Loud");
531 if (opts & PF_OPT_VERBOSE) {
532 printf("Hostid: 0x%08x\n", ntohl(s->hostid));
534 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) {
535 buf[i + i] = hex[s->pf_chksum[i] >> 4];
536 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f];
539 printf("Checksum: 0x%s\n\n", buf);
542 if (s->ifname[0] != 0) {
543 printf("Interface Stats for %-16s %5s %16s\n",
544 s->ifname, "IPv4", "IPv6");
545 printf(" %-25s %14llu %16llu\n", "Bytes In",
546 (unsigned long long)s->bcounters[0][0],
547 (unsigned long long)s->bcounters[1][0]);
548 printf(" %-25s %14llu %16llu\n", "Bytes Out",
549 (unsigned long long)s->bcounters[0][1],
550 (unsigned long long)s->bcounters[1][1]);
551 printf(" Packets In\n");
552 printf(" %-23s %14llu %16llu\n", "Passed",
553 (unsigned long long)s->pcounters[0][0][PF_PASS],
554 (unsigned long long)s->pcounters[1][0][PF_PASS]);
555 printf(" %-23s %14llu %16llu\n", "Blocked",
556 (unsigned long long)s->pcounters[0][0][PF_DROP],
557 (unsigned long long)s->pcounters[1][0][PF_DROP]);
558 printf(" Packets Out\n");
559 printf(" %-23s %14llu %16llu\n", "Passed",
560 (unsigned long long)s->pcounters[0][1][PF_PASS],
561 (unsigned long long)s->pcounters[1][1][PF_PASS]);
562 printf(" %-23s %14llu %16llu\n\n", "Blocked",
563 (unsigned long long)s->pcounters[0][1][PF_DROP],
564 (unsigned long long)s->pcounters[1][1][PF_DROP]);
566 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate");
567 printf(" %-25s %14u %14s\n", "current entries", s->states, "");
568 for (i = 0; i < FCNT_MAX; i++) {
569 printf(" %-25s %14llu ", pf_fcounters[i],
570 (unsigned long long)s->fcounters[i]);
573 (double)s->fcounters[i] / (double)runtime);
575 printf("%14s\n", "");
577 if (opts & PF_OPT_VERBOSE) {
578 printf("Source Tracking Table\n");
579 printf(" %-25s %14u %14s\n", "current entries",
581 for (i = 0; i < SCNT_MAX; i++) {
582 printf(" %-25s %14lld ", pf_scounters[i],
584 (long long)s->scounters[i]);
590 (double)s->scounters[i] / (double)runtime);
592 printf("%14s\n", "");
595 printf("Counters\n");
596 for (i = 0; i < PFRES_MAX; i++) {
597 printf(" %-25s %14llu ", pf_reasons[i],
598 (unsigned long long)s->counters[i]);
601 (double)s->counters[i] / (double)runtime);
603 printf("%14s\n", "");
605 if (opts & PF_OPT_VERBOSE) {
606 printf("Limit Counters\n");
607 for (i = 0; i < LCNT_MAX; i++) {
608 printf(" %-25s %14lld ", pf_lcounters[i],
610 (unsigned long long)s->lcounters[i]);
616 (double)s->lcounters[i] / (double)runtime);
618 printf("%14s\n", "");
624 print_src_node(struct pf_src_node *sn, int opts)
626 struct pf_addr_wrap aw;
629 memset(&aw, 0, sizeof(aw));
630 if (sn->af == AF_INET)
631 aw.v.a.mask.addr32[0] = 0xffffffff;
633 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
635 aw.v.a.addr = sn->addr;
636 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2);
638 aw.v.a.addr = sn->raddr;
639 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2);
640 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states,
641 sn->conn, sn->conn_rate.count / 1000,
642 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds);
643 if (opts & PF_OPT_VERBOSE) {
644 sec = sn->creation % 60;
646 min = sn->creation % 60;
648 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec);
649 if (sn->states == 0) {
650 sec = sn->expire % 60;
652 min = sn->expire % 60;
654 printf(", expires in %.2u:%.2u:%.2u",
655 sn->expire, min, sec);
657 printf(", %llu pkts, %llu bytes",
659 (unsigned long long)(sn->packets[0] + sn->packets[1]),
660 (unsigned long long)(sn->bytes[0] + sn->bytes[1]));
662 sn->packets[0] + sn->packets[1],
663 sn->bytes[0] + sn->bytes[1]);
665 switch (sn->ruletype) {
667 if (sn->rule.nr != -1)
668 printf(", nat rule %u", sn->rule.nr);
671 if (sn->rule.nr != -1)
672 printf(", rdr rule %u", sn->rule.nr);
675 if (sn->rule.nr != -1)
676 printf(", filter rule %u", sn->rule.nr);
684 print_rule(struct pf_rule *r, const char *anchor_call, int verbose, int numeric)
686 static const char *actiontypes[] = { "pass", "block", "scrub",
687 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" };
688 static const char *anchortypes[] = { "anchor", "anchor", "anchor",
689 "anchor", "nat-anchor", "nat-anchor", "binat-anchor",
690 "binat-anchor", "rdr-anchor", "rdr-anchor" };
694 printf("@%d ", r->nr);
695 if (r->action > PF_NORDR)
696 printf("action(%d)", r->action);
697 else if (anchor_call[0]) {
698 if (anchor_call[0] == '_') {
699 printf("%s", anchortypes[r->action]);
701 printf("%s \"%s\"", anchortypes[r->action],
704 printf("%s", actiontypes[r->action]);
708 if (r->action == PF_DROP) {
709 if (r->rule_flag & PFRULE_RETURN)
711 else if (r->rule_flag & PFRULE_RETURNRST) {
713 printf(" return-rst");
715 printf(" return-rst(ttl %d)", r->return_ttl);
716 } else if (r->rule_flag & PFRULE_RETURNICMP) {
717 const struct icmpcodeent *ic, *ic6;
719 ic = geticmpcodebynumber(r->return_icmp >> 8,
720 r->return_icmp & 255, AF_INET);
721 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8,
722 r->return_icmp6 & 255, AF_INET6);
726 printf(" return-icmp");
728 printf("(%u)", r->return_icmp & 255);
730 printf("(%s)", ic->name);
733 printf(" return-icmp6");
735 printf("(%u)", r->return_icmp6 & 255);
737 printf("(%s)", ic6->name);
740 printf(" return-icmp");
742 printf("(%u, ", r->return_icmp & 255);
744 printf("(%s, ", ic->name);
746 printf("%u)", r->return_icmp6 & 255);
748 printf("%s)", ic6->name);
754 if (r->direction == PF_IN)
756 else if (r->direction == PF_OUT)
760 if (r->log & ~PF_LOG || r->logif) {
764 if (r->log & PF_LOG_ALL)
765 printf("%sall", count++ ? ", " : "");
766 if (r->log & PF_LOG_SOCKET_LOOKUP)
767 printf("%suser", count++ ? ", " : "");
769 printf("%sto pflog%u", count++ ? ", " : "",
778 printf(" on ! %s", r->ifname);
780 printf(" on %s", r->ifname);
783 if (r->rt == PF_ROUTETO)
785 else if (r->rt == PF_REPLYTO)
787 else if (r->rt == PF_DUPTO)
789 else if (r->rt == PF_FASTROUTE)
790 printf(" fastroute");
791 if (r->rt != PF_FASTROUTE) {
793 print_pool(&r->rpool, 0, 0, r->af, PF_PASS);
797 if (r->af == AF_INET)
805 if ((p = getprotobynumber(r->proto)) != NULL)
806 printf(" proto %s", p->p_name);
808 printf(" proto %u", r->proto);
810 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto,
813 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user",
816 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group",
818 if (r->flags || r->flagset) {
820 print_flags(r->flags);
822 print_flags(r->flagset);
823 } else if (r->action == PF_PASS &&
824 (!r->proto || r->proto == IPPROTO_TCP) &&
825 !(r->rule_flag & PFRULE_FRAGMENT) &&
826 !anchor_call[0] && r->keep_state)
827 printf(" flags any");
829 const struct icmptypeent *it;
831 it = geticmptypebynumber(r->type-1, r->af);
832 if (r->af != AF_INET6)
833 printf(" icmp-type");
835 printf(" icmp6-type");
837 printf(" %s", it->name);
839 printf(" %u", r->type-1);
841 const struct icmpcodeent *ic;
843 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af);
845 printf(" code %s", ic->name);
847 printf(" code %u", r->code-1);
851 printf(" tos 0x%2.2x", r->tos);
852 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0])
854 else if (r->keep_state == PF_STATE_NORMAL)
855 printf(" keep state");
856 else if (r->keep_state == PF_STATE_MODULATE)
857 printf(" modulate state");
858 else if (r->keep_state == PF_STATE_SYNPROXY)
859 printf(" synproxy state");
863 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0));
864 for (i = strlen(buf)-1; i > 0; i--) {
873 printf(" probability %s%%", buf);
876 if (r->max_states || r->max_src_nodes || r->max_src_states)
878 if (r->rule_flag & PFRULE_NOSYNC)
880 if (r->rule_flag & PFRULE_SRCTRACK)
882 if (r->rule_flag & PFRULE_IFBOUND)
884 if (r->rule_flag & PFRULE_STATESLOPPY)
886 for (i = 0; !opts && i < PFTM_MAX; ++i)
892 printf("max %u", r->max_states);
895 if (r->rule_flag & PFRULE_NOSYNC) {
901 if (r->rule_flag & PFRULE_SRCTRACK) {
904 printf("source-track");
905 if (r->rule_flag & PFRULE_RULESRCTRACK)
911 if (r->max_src_states) {
914 printf("max-src-states %u", r->max_src_states);
917 if (r->max_src_conn) {
920 printf("max-src-conn %u", r->max_src_conn);
923 if (r->max_src_conn_rate.limit) {
926 printf("max-src-conn-rate %u/%u",
927 r->max_src_conn_rate.limit,
928 r->max_src_conn_rate.seconds);
931 if (r->max_src_nodes) {
934 printf("max-src-nodes %u", r->max_src_nodes);
937 if (r->overload_tblname[0]) {
940 printf("overload <%s>", r->overload_tblname);
943 if (r->flush & PF_FLUSH_GLOBAL)
946 if (r->rule_flag & PFRULE_IFBOUND) {
952 if (r->rule_flag & PFRULE_STATESLOPPY) {
958 for (i = 0; i < PFTM_MAX; ++i)
965 for (j = 0; pf_timeouts[j].name != NULL;
967 if (pf_timeouts[j].timeout == i)
969 printf("%s %u", pf_timeouts[j].name == NULL ?
970 "inv.timeout" : pf_timeouts[j].name,
975 if (r->rule_flag & PFRULE_FRAGMENT)
977 if (r->rule_flag & PFRULE_NODF)
979 if (r->rule_flag & PFRULE_RANDOMID)
980 printf(" random-id");
982 printf(" min-ttl %d", r->min_ttl);
984 printf(" max-mss %d", r->max_mss);
985 if (r->rule_flag & PFRULE_SET_TOS)
986 printf(" set-tos 0x%2.2x", r->set_tos);
988 printf(" allow-opts");
989 if (r->action == PF_SCRUB) {
990 if (r->rule_flag & PFRULE_REASSEMBLE_TCP)
991 printf(" reassemble tcp");
993 if (r->rule_flag & PFRULE_FRAGDROP)
994 printf(" fragment drop-ovl");
995 else if (r->rule_flag & PFRULE_FRAGCROP)
996 printf(" fragment crop");
998 printf(" fragment reassemble");
1001 printf(" label \"%s\"", r->label);
1002 if (r->qname[0] && r->pqname[0])
1003 printf(" queue(%s, %s)", r->qname, r->pqname);
1004 else if (r->qname[0])
1005 printf(" queue %s", r->qname);
1007 printf(" tag %s", r->tagname);
1008 if (r->match_tagname[0]) {
1009 if (r->match_tag_not)
1011 printf(" tagged %s", r->match_tagname);
1013 if (r->rtableid != -1)
1014 printf(" rtable %u", r->rtableid);
1015 if (r->divert.port) {
1017 printf(" divert-to %u", ntohs(r->divert.port));
1019 if (PF_AZERO(&r->divert.addr, r->af)) {
1020 printf(" divert-reply");
1022 /* XXX cut&paste from print_addr */
1025 printf(" divert-to ");
1026 if (inet_ntop(r->af, &r->divert.addr, buf,
1027 sizeof(buf)) == NULL)
1031 printf(" port %u", ntohs(r->divert.port));
1035 if (!anchor_call[0] && (r->action == PF_NAT ||
1036 r->action == PF_BINAT || r->action == PF_RDR)) {
1038 print_pool(&r->rpool, r->rpool.proxy_port[0],
1039 r->rpool.proxy_port[1], r->af, r->action);
1044 print_tabledef(const char *name, int flags, int addrs,
1045 struct node_tinithead *nodes)
1047 struct node_tinit *ti, *nti;
1048 struct node_host *h;
1050 printf("table <%s>", name);
1051 if (flags & PFR_TFLAG_CONST)
1053 if (flags & PFR_TFLAG_PERSIST)
1055 if (flags & PFR_TFLAG_COUNTERS)
1056 printf(" counters");
1057 SIMPLEQ_FOREACH(ti, nodes, entries) {
1059 printf(" file \"%s\"", ti->file);
1064 for (h = ti->host; h != NULL; h = h->next) {
1065 printf(h->not ? " !" : " ");
1066 print_addr(&h->addr, h->af, 0);
1068 nti = SIMPLEQ_NEXT(ti, entries);
1069 if (nti != NULL && nti->file == NULL)
1070 ti = nti; /* merge lists */
1076 if (addrs && SIMPLEQ_EMPTY(nodes))
1082 parse_flags(char *s)
1087 for (p = s; *p; p++) {
1088 if ((q = strchr(tcpflags, *p)) == NULL)
1091 f |= 1 << (q - tcpflags);
1093 return (f ? f : PF_TH_ALL);
1097 set_ipmask(struct node_host *h, u_int8_t b)
1099 struct pf_addr *m, *n;
1102 m = &h->addr.v.a.mask;
1103 memset(m, 0, sizeof(*m));
1106 m->addr32[j++] = 0xffffffff;
1109 for (i = 31; i > 31-b; --i)
1110 m->addr32[j] |= (1 << i);
1112 m->addr32[j] = htonl(m->addr32[j]);
1114 /* Mask off bits of the address that will never be used. */
1115 n = &h->addr.v.a.addr;
1116 if (h->addr.type == PF_ADDR_ADDRMASK)
1117 for (i = 0; i < 4; i++)
1118 n->addr32[i] = n->addr32[i] & m->addr32[i];
1122 check_netmask(struct node_host *h, sa_family_t af)
1124 struct node_host *n = NULL;
1127 for (n = h; n != NULL; n = n->next) {
1128 if (h->addr.type == PF_ADDR_TABLE)
1130 m = &h->addr.v.a.mask;
1131 /* fix up netmask for dynaddr */
1132 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL &&
1133 unmask(m, AF_INET6) > 32)
1135 /* netmasks > 32 bit are invalid on v4 */
1136 if (af == AF_INET &&
1137 (m->addr32[1] || m->addr32[2] || m->addr32[3])) {
1138 fprintf(stderr, "netmask %u invalid for IPv4 address\n",
1139 unmask(m, AF_INET6));
1146 /* interface lookup routines */
1148 struct node_host *iftab;
1153 struct ifaddrs *ifap, *ifa;
1154 struct node_host *n = NULL, *h = NULL;
1156 if (getifaddrs(&ifap) < 0)
1157 err(1, "getifaddrs");
1159 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
1160 if (!(ifa->ifa_addr->sa_family == AF_INET ||
1161 ifa->ifa_addr->sa_family == AF_INET6 ||
1162 ifa->ifa_addr->sa_family == AF_LINK))
1164 n = calloc(1, sizeof(struct node_host));
1166 err(1, "address: calloc");
1167 n->af = ifa->ifa_addr->sa_family;
1168 n->ifa_flags = ifa->ifa_flags;
1170 if (n->af == AF_INET6 &&
1171 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *)
1172 ifa->ifa_addr)->sin6_addr) &&
1173 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id ==
1175 struct sockaddr_in6 *sin6;
1177 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1178 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 |
1179 sin6->sin6_addr.s6_addr[3];
1180 sin6->sin6_addr.s6_addr[2] = 0;
1181 sin6->sin6_addr.s6_addr[3] = 0;
1185 if (n->af == AF_INET) {
1186 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *)
1187 ifa->ifa_addr)->sin_addr.s_addr,
1188 sizeof(struct in_addr));
1189 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *)
1190 ifa->ifa_netmask)->sin_addr.s_addr,
1191 sizeof(struct in_addr));
1192 if (ifa->ifa_broadaddr != NULL)
1193 memcpy(&n->bcast, &((struct sockaddr_in *)
1194 ifa->ifa_broadaddr)->sin_addr.s_addr,
1195 sizeof(struct in_addr));
1196 if (ifa->ifa_dstaddr != NULL)
1197 memcpy(&n->peer, &((struct sockaddr_in *)
1198 ifa->ifa_dstaddr)->sin_addr.s_addr,
1199 sizeof(struct in_addr));
1200 } else if (n->af == AF_INET6) {
1201 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *)
1202 ifa->ifa_addr)->sin6_addr.s6_addr,
1203 sizeof(struct in6_addr));
1204 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *)
1205 ifa->ifa_netmask)->sin6_addr.s6_addr,
1206 sizeof(struct in6_addr));
1207 if (ifa->ifa_broadaddr != NULL)
1208 memcpy(&n->bcast, &((struct sockaddr_in6 *)
1209 ifa->ifa_broadaddr)->sin6_addr.s6_addr,
1210 sizeof(struct in6_addr));
1211 if (ifa->ifa_dstaddr != NULL)
1212 memcpy(&n->peer, &((struct sockaddr_in6 *)
1213 ifa->ifa_dstaddr)->sin6_addr.s6_addr,
1214 sizeof(struct in6_addr));
1215 n->ifindex = ((struct sockaddr_in6 *)
1216 ifa->ifa_addr)->sin6_scope_id;
1218 if ((n->ifname = strdup(ifa->ifa_name)) == NULL)
1219 err(1, "ifa_load: strdup");
1235 get_socket_domain(void)
1241 if (sdom == AF_UNSPEC && feature_present("inet6"))
1245 if (sdom == AF_UNSPEC && feature_present("inet"))
1248 if (sdom == AF_UNSPEC)
1255 ifa_exists(const char *ifa_name)
1257 struct node_host *n;
1258 struct ifgroupreq ifgr;
1264 /* check wether this is a group */
1265 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1)
1267 bzero(&ifgr, sizeof(ifgr));
1268 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
1269 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) {
1270 /* fake a node_host */
1271 if ((n = calloc(1, sizeof(*n))) == NULL)
1273 if ((n->ifname = strdup(ifa_name)) == NULL)
1280 for (n = iftab; n; n = n->next) {
1281 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ))
1289 ifa_grouplookup(const char *ifa_name, int flags)
1291 struct ifg_req *ifg;
1292 struct ifgroupreq ifgr;
1294 struct node_host *n, *h = NULL;
1296 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1)
1298 bzero(&ifgr, sizeof(ifgr));
1299 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
1300 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) {
1305 len = ifgr.ifgr_len;
1306 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL)
1308 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1)
1309 err(1, "SIOCGIFGMEMB");
1311 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req);
1313 len -= sizeof(struct ifg_req);
1314 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL)
1323 free(ifgr.ifgr_groups);
1330 ifa_lookup(const char *ifa_name, int flags)
1332 struct node_host *p = NULL, *h = NULL, *n = NULL;
1333 int got4 = 0, got6 = 0;
1334 const char *last_if = NULL;
1336 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL)
1339 if (!strncmp(ifa_name, "self", IFNAMSIZ))
1345 for (p = iftab; p; p = p->next) {
1346 if (ifa_skip_if(ifa_name, p))
1348 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET)
1350 if ((flags & PFI_AFLAG_BROADCAST) &&
1351 !(p->ifa_flags & IFF_BROADCAST))
1353 if ((flags & PFI_AFLAG_PEER) &&
1354 !(p->ifa_flags & IFF_POINTOPOINT))
1356 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0)
1358 if (last_if == NULL || strcmp(last_if, p->ifname))
1360 last_if = p->ifname;
1361 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4)
1363 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6)
1365 if (p->af == AF_INET)
1369 n = calloc(1, sizeof(struct node_host));
1371 err(1, "address: calloc");
1373 if (flags & PFI_AFLAG_BROADCAST)
1374 memcpy(&n->addr.v.a.addr, &p->bcast,
1375 sizeof(struct pf_addr));
1376 else if (flags & PFI_AFLAG_PEER)
1377 memcpy(&n->addr.v.a.addr, &p->peer,
1378 sizeof(struct pf_addr));
1380 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr,
1381 sizeof(struct pf_addr));
1382 if (flags & PFI_AFLAG_NETWORK)
1383 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af));
1385 if (n->af == AF_INET) {
1386 if (p->ifa_flags & IFF_LOOPBACK &&
1387 p->ifa_flags & IFF_LINK1)
1388 memcpy(&n->addr.v.a.mask,
1390 sizeof(struct pf_addr));
1396 n->ifindex = p->ifindex;
1411 ifa_skip_if(const char *filter, struct node_host *p)
1415 if (p->af != AF_INET && p->af != AF_INET6)
1417 if (filter == NULL || !*filter)
1419 if (!strcmp(p->ifname, filter))
1420 return (0); /* exact match */
1422 if (n < 1 || n >= IFNAMSIZ)
1423 return (1); /* sanity check */
1424 if (filter[n-1] >= '0' && filter[n-1] <= '9')
1425 return (1); /* only do exact match in that case */
1426 if (strncmp(p->ifname, filter, n))
1427 return (1); /* prefix doesn't match */
1428 return (p->ifname[n] < '0' || p->ifname[n] > '9');
1435 struct node_host *h = NULL;
1436 int mask, v4mask, v6mask, cont = 1;
1439 if ((p = strrchr(s, '/')) != NULL) {
1440 mask = strtol(p+1, &q, 0);
1441 if (!q || *q || mask > 128 || q == (p+1)) {
1442 fprintf(stderr, "invalid netmask '%s'\n", p);
1445 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL)
1446 err(1, "host: malloc");
1447 strlcpy(ps, s, strlen(s) - strlen(p) + 1);
1448 v4mask = v6mask = mask;
1450 if ((ps = strdup(s)) == NULL)
1451 err(1, "host: strdup");
1457 /* interface with this name exists? */
1458 if (cont && (h = host_if(ps, mask)) != NULL)
1462 if (cont && (h = host_v4(s, mask)) != NULL)
1466 if (cont && (h = host_v6(ps, v6mask)) != NULL)
1470 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL)
1474 if (h == NULL || cont == 1) {
1475 fprintf(stderr, "no IP address found for %s\n", s);
1482 host_if(const char *s, int mask)
1484 struct node_host *n, *h = NULL;
1488 if ((ps = strdup(s)) == NULL)
1489 err(1, "host_if: strdup");
1490 while ((p = strrchr(ps, ':')) != NULL) {
1491 if (!strcmp(p+1, "network"))
1492 flags |= PFI_AFLAG_NETWORK;
1493 else if (!strcmp(p+1, "broadcast"))
1494 flags |= PFI_AFLAG_BROADCAST;
1495 else if (!strcmp(p+1, "peer"))
1496 flags |= PFI_AFLAG_PEER;
1497 else if (!strcmp(p+1, "0"))
1498 flags |= PFI_AFLAG_NOALIAS;
1505 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */
1506 fprintf(stderr, "illegal combination of interface modifiers\n");
1510 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) {
1511 fprintf(stderr, "network or broadcast lookup, but "
1512 "extra netmask given\n");
1516 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) {
1517 /* interface with this name exists */
1518 h = ifa_lookup(ps, flags);
1519 for (n = h; n != NULL && mask > -1; n = n->next)
1520 set_ipmask(n, mask);
1528 host_v4(const char *s, int mask)
1530 struct node_host *h = NULL;
1534 memset(&ina, 0, sizeof(struct in_addr));
1535 if (strrchr(s, '/') != NULL) {
1536 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1)
1539 if (inet_pton(AF_INET, s, &ina) != 1)
1543 h = calloc(1, sizeof(struct node_host));
1545 err(1, "address: calloc");
1548 h->addr.v.a.addr.addr32[0] = ina.s_addr;
1549 set_ipmask(h, bits);
1557 host_v6(const char *s, int mask)
1559 struct addrinfo hints, *res;
1560 struct node_host *h = NULL;
1562 memset(&hints, 0, sizeof(hints));
1563 hints.ai_family = AF_INET6;
1564 hints.ai_socktype = SOCK_DGRAM; /*dummy*/
1565 hints.ai_flags = AI_NUMERICHOST;
1566 if (getaddrinfo(s, "0", &hints, &res) == 0) {
1567 h = calloc(1, sizeof(struct node_host));
1569 err(1, "address: calloc");
1572 memcpy(&h->addr.v.a.addr,
1573 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr,
1574 sizeof(h->addr.v.a.addr));
1576 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
1577 set_ipmask(h, mask);
1587 host_dns(const char *s, int v4mask, int v6mask)
1589 struct addrinfo hints, *res0, *res;
1590 struct node_host *n, *h = NULL;
1591 int error, noalias = 0;
1592 int got4 = 0, got6 = 0;
1595 if ((ps = strdup(s)) == NULL)
1596 err(1, "host_dns: strdup");
1597 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) {
1601 memset(&hints, 0, sizeof(hints));
1602 hints.ai_family = PF_UNSPEC;
1603 hints.ai_socktype = SOCK_STREAM; /* DUMMY */
1604 error = getaddrinfo(ps, NULL, &hints, &res0);
1610 for (res = res0; res; res = res->ai_next) {
1611 if (res->ai_family != AF_INET &&
1612 res->ai_family != AF_INET6)
1615 if (res->ai_family == AF_INET) {
1625 n = calloc(1, sizeof(struct node_host));
1627 err(1, "host_dns: calloc");
1629 n->af = res->ai_family;
1630 if (res->ai_family == AF_INET) {
1631 memcpy(&n->addr.v.a.addr,
1632 &((struct sockaddr_in *)
1633 res->ai_addr)->sin_addr.s_addr,
1634 sizeof(struct in_addr));
1635 set_ipmask(n, v4mask);
1637 memcpy(&n->addr.v.a.addr,
1638 &((struct sockaddr_in6 *)
1639 res->ai_addr)->sin6_addr.s6_addr,
1640 sizeof(struct in6_addr));
1642 ((struct sockaddr_in6 *)
1643 res->ai_addr)->sin6_scope_id;
1644 set_ipmask(n, v6mask);
1662 * convert a hostname to a list of addresses and put them in the given buffer.
1664 * if set to 1, only simple addresses are accepted (no netblock, no "!").
1667 append_addr(struct pfr_buffer *b, char *s, int test)
1670 struct node_host *h, *n;
1673 for (r = s; *r == '!'; r++)
1675 if ((n = host(r)) == NULL) {
1679 rv = append_addr_host(b, n, test, not);
1684 } while (n != NULL);
1689 * same as previous function, but with a pre-parsed input and the ability
1690 * to "negate" the result. Does not free the node_host list.
1692 * setting it to 1 is equivalent to adding "!" in front of parameter s.
1695 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not)
1698 struct pfr_addr addr;
1701 bzero(&addr, sizeof(addr));
1702 addr.pfra_not = n->not ^ not;
1703 addr.pfra_af = n->af;
1704 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af);
1707 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0];
1711 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6,
1712 sizeof(struct in6_addr));
1719 if ((test && (not || addr.pfra_net != bits)) ||
1720 addr.pfra_net > bits) {
1724 if (pfr_buf_add(b, &addr))
1726 } while ((n = n->next) != NULL);
1732 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor)
1734 struct pfioc_trans_e trans;
1736 bzero(&trans, sizeof(trans));
1737 trans.rs_num = rs_num;
1738 if (strlcpy(trans.anchor, anchor,
1739 sizeof(trans.anchor)) >= sizeof(trans.anchor))
1740 errx(1, "pfctl_add_trans: strlcpy");
1742 return pfr_buf_add(buf, &trans);
1746 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor)
1748 struct pfioc_trans_e *p;
1750 PFRB_FOREACH(p, buf)
1751 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor))
1753 errx(1, "pfctl_get_ticket: assertion failed");
1757 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from)
1759 struct pfioc_trans trans;
1761 bzero(&trans, sizeof(trans));
1762 trans.size = buf->pfrb_size - from;
1763 trans.esize = sizeof(struct pfioc_trans_e);
1764 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from;
1765 return ioctl(dev, cmd, &trans);