1 /* $OpenBSD: pf_print_state.c,v 1.52 2008/08/12 16:40:18 david Exp $ */
4 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright (c) 2001 Daniel Hartmeier
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * - Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * - Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials provided
18 * with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/types.h>
39 #include <sys/socket.h>
40 #include <sys/endian.h>
43 #include <netinet/tcp_fsm.h>
44 #include <net/pfvar.h>
45 #include <arpa/inet.h>
52 #include "pfctl_parser.h"
55 void print_name(struct pf_addr *, sa_family_t);
58 print_addr(struct pf_addr_wrap *addr, sa_family_t af, int verbose)
62 printf("(%s", addr->v.ifname);
63 if (addr->iflags & PFI_AFLAG_NETWORK)
65 if (addr->iflags & PFI_AFLAG_BROADCAST)
67 if (addr->iflags & PFI_AFLAG_PEER)
69 if (addr->iflags & PFI_AFLAG_NOALIAS)
72 if (addr->p.dyncnt <= 0)
75 printf(":%d", addr->p.dyncnt);
81 if (addr->p.tblcnt == -1)
82 printf("<%s:*>", addr->v.tblname);
84 printf("<%s:%d>", addr->v.tblname,
87 printf("<%s>", addr->v.tblname);
92 if (inet_ntop(af, &addr->v.a.addr, buf, sizeof(buf)) == NULL)
96 if (inet_ntop(af, &addr->v.a.mask, buf, sizeof(buf)) == NULL)
102 case PF_ADDR_ADDRMASK:
103 if (PF_AZERO(&addr->v.a.addr, AF_INET6) &&
104 PF_AZERO(&addr->v.a.mask, AF_INET6))
109 if (inet_ntop(af, &addr->v.a.addr, buf,
110 sizeof(buf)) == NULL)
116 case PF_ADDR_NOROUTE:
119 case PF_ADDR_URPFFAILED:
120 printf("urpf-failed");
127 /* mask if not _both_ address and mask are zero */
128 if (addr->type != PF_ADDR_RANGE &&
129 !(PF_AZERO(&addr->v.a.addr, AF_INET6) &&
130 PF_AZERO(&addr->v.a.mask, AF_INET6))) {
131 int bits = unmask(&addr->v.a.mask, af);
133 if (bits != (af == AF_INET ? 32 : 128))
139 print_name(struct pf_addr *addr, sa_family_t af)
141 char host[NI_MAXHOST];
143 strlcpy(host, "?", sizeof(host));
146 struct sockaddr_in sin;
148 memset(&sin, 0, sizeof(sin));
149 sin.sin_len = sizeof(sin);
150 sin.sin_family = AF_INET;
151 sin.sin_addr = addr->v4;
152 getnameinfo((struct sockaddr *)&sin, sin.sin_len,
153 host, sizeof(host), NULL, 0, NI_NOFQDN);
157 struct sockaddr_in6 sin6;
159 memset(&sin6, 0, sizeof(sin6));
160 sin6.sin6_len = sizeof(sin6);
161 sin6.sin6_family = AF_INET6;
162 sin6.sin6_addr = addr->v6;
163 getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
164 host, sizeof(host), NULL, 0, NI_NOFQDN);
172 print_host(struct pf_addr *addr, u_int16_t port, sa_family_t af, int opts)
174 if (opts & PF_OPT_USEDNS)
175 print_name(addr, af);
177 struct pf_addr_wrap aw;
179 memset(&aw, 0, sizeof(aw));
182 aw.v.a.mask.addr32[0] = 0xffffffff;
184 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
187 print_addr(&aw, af, opts & PF_OPT_VERBOSE2);
192 printf(":%u", ntohs(port));
194 printf("[%u]", ntohs(port));
199 print_seq(struct pfctl_state_peer *p)
202 printf("[%u + %u](+%u)", p->seqlo,
203 p->seqhi - p->seqlo, p->seqdiff);
205 printf("[%u + %u]", p->seqlo,
206 p->seqhi - p->seqlo);
210 print_state(struct pfctl_state *s, int opts)
212 struct pfctl_state_peer *src, *dst;
213 struct pfctl_state_key *key, *sk, *nk;
214 const char *protoname;
218 #ifndef __NO_STRICT_ALIGNMENT
219 struct pfctl_state_key aligned_key[2];
221 bcopy(&s->key, aligned_key, sizeof(aligned_key));
227 af = s->key[PF_SK_WIRE].af;
228 proto = s->key[PF_SK_WIRE].proto;
230 if (s->direction == PF_OUT) {
233 sk = &key[PF_SK_STACK];
234 nk = &key[PF_SK_WIRE];
235 if (proto == IPPROTO_ICMP || proto == IPPROTO_ICMPV6)
236 sk->port[0] = nk->port[0];
240 sk = &key[PF_SK_WIRE];
241 nk = &key[PF_SK_STACK];
242 if (proto == IPPROTO_ICMP || proto == IPPROTO_ICMPV6)
243 sk->port[1] = nk->port[1];
245 printf("%s ", s->ifname);
246 if ((protoname = pfctl_proto2name(proto)) != NULL)
247 printf("%s ", protoname);
249 printf("%u ", proto);
251 print_host(&nk->addr[1], nk->port[1], af, opts);
252 if (PF_ANEQ(&nk->addr[1], &sk->addr[1], af) ||
253 nk->port[1] != sk->port[1]) {
255 print_host(&sk->addr[1], sk->port[1], af, opts);
258 if (s->direction == PF_OUT)
262 print_host(&nk->addr[0], nk->port[0], af, opts);
263 if (PF_ANEQ(&nk->addr[0], &sk->addr[0], af) ||
264 nk->port[0] != sk->port[0]) {
266 print_host(&sk->addr[0], sk->port[0], af, opts);
271 if (proto == IPPROTO_TCP) {
272 if (src->state <= TCPS_TIME_WAIT &&
273 dst->state <= TCPS_TIME_WAIT)
274 printf(" %s:%s\n", tcpstates[src->state],
275 tcpstates[dst->state]);
276 else if (src->state == PF_TCPS_PROXY_SRC ||
277 dst->state == PF_TCPS_PROXY_SRC)
278 printf(" PROXY:SRC\n");
279 else if (src->state == PF_TCPS_PROXY_DST ||
280 dst->state == PF_TCPS_PROXY_DST)
281 printf(" PROXY:DST\n");
283 printf(" <BAD STATE LEVELS %u:%u>\n",
284 src->state, dst->state);
285 if (opts & PF_OPT_VERBOSE) {
288 if (src->wscale && dst->wscale)
290 src->wscale & PF_WSCALE_MASK);
293 if (src->wscale && dst->wscale)
295 dst->wscale & PF_WSCALE_MASK);
298 } else if (proto == IPPROTO_UDP && src->state < PFUDPS_NSTATES &&
299 dst->state < PFUDPS_NSTATES) {
300 const char *states[] = PFUDPS_NAMES;
302 printf(" %s:%s\n", states[src->state], states[dst->state]);
304 } else if (proto != IPPROTO_ICMP && src->state < PFOTHERS_NSTATES &&
305 dst->state < PFOTHERS_NSTATES) {
307 } else if (proto != IPPROTO_ICMP && proto != IPPROTO_ICMPV6 &&
308 src->state < PFOTHERS_NSTATES && dst->state < PFOTHERS_NSTATES) {
310 /* XXX ICMP doesn't really have state levels */
311 const char *states[] = PFOTHERS_NAMES;
313 printf(" %s:%s\n", states[src->state], states[dst->state]);
315 printf(" %u:%u\n", src->state, dst->state);
318 if (opts & PF_OPT_VERBOSE) {
319 u_int32_t creation = s->creation;
320 u_int32_t expire = s->expire;
326 printf(" age %.2u:%.2u:%.2u", creation, min, sec);
331 printf(", expires in %.2u:%.2u:%.2u", expire, min, sec);
333 printf(", %ju:%ju pkts, %ju:%ju bytes",
339 printf(", anchor %u", s->anchor);
341 printf(", rule %u", s->rule);
342 if (s->state_flags & PFSTATE_SLOPPY)
344 if (s->sync_flags & PFSYNC_FLAG_SRCNODE)
345 printf(", source-track");
346 if (s->sync_flags & PFSYNC_FLAG_NATSRCNODE)
347 printf(", sticky-address");
350 if (opts & PF_OPT_VERBOSE2) {
353 bcopy(&s->id, &id, sizeof(u_int64_t));
354 printf(" id: %016jx creatorid: %08x", id, s->creatorid);
355 printf(" gateway: ");
356 print_host(&s->rt_addr, 0, af, opts);
359 if (strcmp(s->ifname, s->orig_ifname) != 0)
360 printf(" origif: %s\n", s->orig_ifname);
365 unmask(struct pf_addr *m, sa_family_t af)
367 int i = 31, j = 0, b = 0;
370 while (j < 4 && m->addr32[j] == 0xffffffff) {
375 tmp = ntohl(m->addr32[j]);
376 for (i = 31; tmp & (1 << i); --i)