pf_print_state.c revision 130617
1130614Smlaier/* $OpenBSD: pf_print_state.c,v 1.39 2004/02/10 17:48:08 henning Exp $ */ 2126353Smlaier 3126353Smlaier/* 4126353Smlaier * Copyright (c) 2001 Daniel Hartmeier 5126353Smlaier * All rights reserved. 6126353Smlaier * 7126353Smlaier * Redistribution and use in source and binary forms, with or without 8126353Smlaier * modification, are permitted provided that the following conditions 9126353Smlaier * are met: 10126353Smlaier * 11126353Smlaier * - Redistributions of source code must retain the above copyright 12126353Smlaier * notice, this list of conditions and the following disclaimer. 13126353Smlaier * - Redistributions in binary form must reproduce the above 14126353Smlaier * copyright notice, this list of conditions and the following 15126353Smlaier * disclaimer in the documentation and/or other materials provided 16126353Smlaier * with the distribution. 17126353Smlaier * 18126353Smlaier * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19126353Smlaier * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20126353Smlaier * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21126353Smlaier * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22126353Smlaier * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23126353Smlaier * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24126353Smlaier * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25126353Smlaier * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26126353Smlaier * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27126353Smlaier * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28126353Smlaier * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29126353Smlaier * POSSIBILITY OF SUCH DAMAGE. 30126353Smlaier * 31126353Smlaier */ 32126353Smlaier 33130617Smlaier#include <sys/cdefs.h> 34130617Smlaier__FBSDID("$FreeBSD: head/contrib/pf/pfctl/pf_print_state.c 130617 2004-06-16 23:39:33Z mlaier $"); 35130617Smlaier 36126353Smlaier#include <sys/types.h> 37126353Smlaier#include <sys/socket.h> 38130617Smlaier#include <sys/endian.h> 39126353Smlaier#include <net/if.h> 40126353Smlaier#define TCPSTATES 41126353Smlaier#include <netinet/tcp_fsm.h> 42126353Smlaier#include <net/pfvar.h> 43126353Smlaier#include <arpa/inet.h> 44126353Smlaier#include <netdb.h> 45126353Smlaier 46126353Smlaier#include <stdio.h> 47126353Smlaier#include <string.h> 48126353Smlaier 49126353Smlaier#include "pfctl_parser.h" 50126353Smlaier#include "pfctl.h" 51126353Smlaier 52126353Smlaiervoid print_name(struct pf_addr *, sa_family_t); 53126353Smlaier 54126353Smlaiervoid 55126353Smlaierprint_addr(struct pf_addr_wrap *addr, sa_family_t af, int verbose) 56126353Smlaier{ 57130614Smlaier switch (addr->type) { 58126353Smlaier case PF_ADDR_DYNIFTL: 59130614Smlaier printf("(%s", addr->v.ifname); 60130614Smlaier if (addr->iflags & PFI_AFLAG_NETWORK) 61130614Smlaier printf(":network"); 62130614Smlaier if (addr->iflags & PFI_AFLAG_BROADCAST) 63130614Smlaier printf(":broadcast"); 64130614Smlaier if (addr->iflags & PFI_AFLAG_PEER) 65130614Smlaier printf(":peer"); 66130614Smlaier if (addr->iflags & PFI_AFLAG_NOALIAS) 67130614Smlaier printf(":0"); 68130614Smlaier if (verbose) { 69130614Smlaier if (addr->p.dyncnt <= 0) 70130614Smlaier printf(":*"); 71130614Smlaier else 72130614Smlaier printf(":%d", addr->p.dyncnt); 73130614Smlaier } 74130614Smlaier printf(")"); 75126353Smlaier break; 76126353Smlaier case PF_ADDR_TABLE: 77126353Smlaier if (verbose) 78126353Smlaier if (addr->p.tblcnt == -1) 79126353Smlaier printf("<%s:*>", addr->v.tblname); 80126353Smlaier else 81126353Smlaier printf("<%s:%d>", addr->v.tblname, 82126353Smlaier addr->p.tblcnt); 83126353Smlaier else 84126353Smlaier printf("<%s>", addr->v.tblname); 85126353Smlaier return; 86126353Smlaier case PF_ADDR_ADDRMASK: 87126353Smlaier if (PF_AZERO(&addr->v.a.addr, AF_INET6) && 88126353Smlaier PF_AZERO(&addr->v.a.mask, AF_INET6)) 89126353Smlaier printf("any"); 90126353Smlaier else { 91126353Smlaier char buf[48]; 92126353Smlaier 93126353Smlaier if (inet_ntop(af, &addr->v.a.addr, buf, 94126353Smlaier sizeof(buf)) == NULL) 95126353Smlaier printf("?"); 96126353Smlaier else 97126353Smlaier printf("%s", buf); 98126353Smlaier } 99126353Smlaier break; 100126353Smlaier case PF_ADDR_NOROUTE: 101126353Smlaier printf("no-route"); 102126353Smlaier return; 103126353Smlaier default: 104126353Smlaier printf("?"); 105126353Smlaier return; 106126353Smlaier } 107130614Smlaier 108130614Smlaier /* mask if not _both_ address and mask are zero */ 109130614Smlaier if (!(PF_AZERO(&addr->v.a.addr, AF_INET6) && 110130614Smlaier PF_AZERO(&addr->v.a.mask, AF_INET6))) { 111126353Smlaier int bits = unmask(&addr->v.a.mask, af); 112126353Smlaier 113126353Smlaier if (bits != (af == AF_INET ? 32 : 128)) 114126353Smlaier printf("/%d", bits); 115126353Smlaier } 116126353Smlaier} 117126353Smlaier 118126353Smlaiervoid 119126353Smlaierprint_name(struct pf_addr *addr, sa_family_t af) 120126353Smlaier{ 121126353Smlaier char host[NI_MAXHOST]; 122126353Smlaier 123126353Smlaier strlcpy(host, "?", sizeof(host)); 124126353Smlaier switch (af) { 125126353Smlaier case AF_INET: { 126126353Smlaier struct sockaddr_in sin; 127126353Smlaier 128126353Smlaier memset(&sin, 0, sizeof(sin)); 129126353Smlaier sin.sin_len = sizeof(sin); 130126353Smlaier sin.sin_family = AF_INET; 131126353Smlaier sin.sin_addr = addr->v4; 132126353Smlaier getnameinfo((struct sockaddr *)&sin, sin.sin_len, 133126353Smlaier host, sizeof(host), NULL, 0, NI_NOFQDN); 134126353Smlaier break; 135126353Smlaier } 136126353Smlaier case AF_INET6: { 137126353Smlaier struct sockaddr_in6 sin6; 138126353Smlaier 139126353Smlaier memset(&sin6, 0, sizeof(sin6)); 140126353Smlaier sin6.sin6_len = sizeof(sin6); 141126353Smlaier sin6.sin6_family = AF_INET6; 142126353Smlaier sin6.sin6_addr = addr->v6; 143126353Smlaier getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 144126353Smlaier host, sizeof(host), NULL, 0, NI_NOFQDN); 145126353Smlaier break; 146126353Smlaier } 147126353Smlaier } 148126353Smlaier printf("%s", host); 149126353Smlaier} 150126353Smlaier 151126353Smlaiervoid 152126353Smlaierprint_host(struct pf_state_host *h, sa_family_t af, int opts) 153126353Smlaier{ 154126353Smlaier u_int16_t p = ntohs(h->port); 155126353Smlaier 156126353Smlaier if (opts & PF_OPT_USEDNS) 157126353Smlaier print_name(&h->addr, af); 158126353Smlaier else { 159126353Smlaier struct pf_addr_wrap aw; 160126353Smlaier 161126353Smlaier memset(&aw, 0, sizeof(aw)); 162126353Smlaier aw.v.a.addr = h->addr; 163126353Smlaier if (af == AF_INET) 164126353Smlaier aw.v.a.mask.addr32[0] = 0xffffffff; 165130614Smlaier else { 166126353Smlaier memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 167130614Smlaier af = AF_INET6; 168130614Smlaier } 169126353Smlaier print_addr(&aw, af, opts & PF_OPT_VERBOSE2); 170126353Smlaier } 171126353Smlaier 172126353Smlaier if (p) { 173126353Smlaier if (af == AF_INET) 174126353Smlaier printf(":%u", p); 175126353Smlaier else 176126353Smlaier printf("[%u]", p); 177126353Smlaier } 178126353Smlaier} 179126353Smlaier 180126353Smlaiervoid 181126353Smlaierprint_seq(struct pf_state_peer *p) 182126353Smlaier{ 183126353Smlaier if (p->seqdiff) 184126353Smlaier printf("[%u + %u](+%u)", p->seqlo, p->seqhi - p->seqlo, 185126353Smlaier p->seqdiff); 186126353Smlaier else 187126353Smlaier printf("[%u + %u]", p->seqlo, p->seqhi - p->seqlo); 188126353Smlaier} 189126353Smlaier 190126353Smlaiervoid 191126353Smlaierprint_state(struct pf_state *s, int opts) 192126353Smlaier{ 193126353Smlaier struct pf_state_peer *src, *dst; 194126353Smlaier struct protoent *p; 195126353Smlaier int min, sec; 196126353Smlaier 197126353Smlaier if (s->direction == PF_OUT) { 198126353Smlaier src = &s->src; 199126353Smlaier dst = &s->dst; 200126353Smlaier } else { 201126353Smlaier src = &s->dst; 202126353Smlaier dst = &s->src; 203126353Smlaier } 204130614Smlaier printf("%s ", s->u.ifname); 205126353Smlaier if ((p = getprotobynumber(s->proto)) != NULL) 206126353Smlaier printf("%s ", p->p_name); 207126353Smlaier else 208126353Smlaier printf("%u ", s->proto); 209126353Smlaier if (PF_ANEQ(&s->lan.addr, &s->gwy.addr, s->af) || 210126353Smlaier (s->lan.port != s->gwy.port)) { 211126353Smlaier print_host(&s->lan, s->af, opts); 212126353Smlaier if (s->direction == PF_OUT) 213126353Smlaier printf(" -> "); 214126353Smlaier else 215126353Smlaier printf(" <- "); 216126353Smlaier } 217126353Smlaier print_host(&s->gwy, s->af, opts); 218126353Smlaier if (s->direction == PF_OUT) 219126353Smlaier printf(" -> "); 220126353Smlaier else 221126353Smlaier printf(" <- "); 222126353Smlaier print_host(&s->ext, s->af, opts); 223126353Smlaier 224126353Smlaier printf(" "); 225126353Smlaier if (s->proto == IPPROTO_TCP) { 226126353Smlaier if (src->state <= TCPS_TIME_WAIT && 227126353Smlaier dst->state <= TCPS_TIME_WAIT) 228126353Smlaier printf(" %s:%s\n", tcpstates[src->state], 229126353Smlaier tcpstates[dst->state]); 230126353Smlaier else if (src->state == PF_TCPS_PROXY_SRC || 231126353Smlaier dst->state == PF_TCPS_PROXY_SRC) 232126353Smlaier printf(" PROXY:SRC\n"); 233126353Smlaier else if (src->state == PF_TCPS_PROXY_DST || 234126353Smlaier dst->state == PF_TCPS_PROXY_DST) 235126353Smlaier printf(" PROXY:DST\n"); 236126353Smlaier else 237126353Smlaier printf(" <BAD STATE LEVELS %u:%u>\n", 238126353Smlaier src->state, dst->state); 239126353Smlaier if (opts & PF_OPT_VERBOSE) { 240126353Smlaier printf(" "); 241126353Smlaier print_seq(src); 242126353Smlaier if (src->wscale && dst->wscale) 243126353Smlaier printf(" wscale %u", 244126353Smlaier src->wscale & PF_WSCALE_MASK); 245126353Smlaier printf(" "); 246126353Smlaier print_seq(dst); 247126353Smlaier if (src->wscale && dst->wscale) 248126353Smlaier printf(" wscale %u", 249126353Smlaier dst->wscale & PF_WSCALE_MASK); 250126353Smlaier printf("\n"); 251126353Smlaier } 252126353Smlaier } else if (s->proto == IPPROTO_UDP && src->state < PFUDPS_NSTATES && 253126353Smlaier dst->state < PFUDPS_NSTATES) { 254126353Smlaier const char *states[] = PFUDPS_NAMES; 255126353Smlaier 256126353Smlaier printf(" %s:%s\n", states[src->state], states[dst->state]); 257126353Smlaier } else if (s->proto != IPPROTO_ICMP && src->state < PFOTHERS_NSTATES && 258126353Smlaier dst->state < PFOTHERS_NSTATES) { 259126353Smlaier /* XXX ICMP doesn't really have state levels */ 260126353Smlaier const char *states[] = PFOTHERS_NAMES; 261126353Smlaier 262126353Smlaier printf(" %s:%s\n", states[src->state], states[dst->state]); 263126353Smlaier } else { 264126353Smlaier printf(" %u:%u\n", src->state, dst->state); 265126353Smlaier } 266126353Smlaier 267126353Smlaier if (opts & PF_OPT_VERBOSE) { 268126353Smlaier sec = s->creation % 60; 269126353Smlaier s->creation /= 60; 270126353Smlaier min = s->creation % 60; 271126353Smlaier s->creation /= 60; 272126353Smlaier printf(" age %.2u:%.2u:%.2u", s->creation, min, sec); 273126353Smlaier sec = s->expire % 60; 274126353Smlaier s->expire /= 60; 275126353Smlaier min = s->expire % 60; 276126353Smlaier s->expire /= 60; 277126353Smlaier printf(", expires in %.2u:%.2u:%.2u", s->expire, min, sec); 278126353Smlaier printf(", %u:%u pkts, %u:%u bytes", 279126353Smlaier s->packets[0], s->packets[1], s->bytes[0], s->bytes[1]); 280126353Smlaier if (s->anchor.nr != -1) 281126353Smlaier printf(", anchor %u", s->anchor.nr); 282126353Smlaier if (s->rule.nr != -1) 283126353Smlaier printf(", rule %u", s->rule.nr); 284130614Smlaier if (s->src_node != NULL) 285130614Smlaier printf(", source-track"); 286130614Smlaier if (s->nat_src_node != NULL) 287130614Smlaier printf(", sticky-address"); 288126353Smlaier printf("\n"); 289126353Smlaier } 290130614Smlaier if (opts & PF_OPT_VERBOSE2) { 291130617Smlaier#ifdef __FreeBSD__ 292130614Smlaier printf(" id: %016llx creatorid: %08x\n", 293130617Smlaier (long long)be64toh(s->id), ntohl(s->creatorid)); 294130617Smlaier#else 295130617Smlaier printf(" id: %016llx creatorid: %08x\n", 296130614Smlaier betoh64(s->id), ntohl(s->creatorid)); 297130617Smlaier#endif 298130614Smlaier } 299126353Smlaier} 300126353Smlaier 301126353Smlaierint 302126353Smlaierunmask(struct pf_addr *m, sa_family_t af) 303126353Smlaier{ 304126353Smlaier int i = 31, j = 0, b = 0; 305126353Smlaier u_int32_t tmp; 306126353Smlaier 307126353Smlaier while (j < 4 && m->addr32[j] == 0xffffffff) { 308126353Smlaier b += 32; 309126353Smlaier j++; 310126353Smlaier } 311126353Smlaier if (j < 4) { 312126353Smlaier tmp = ntohl(m->addr32[j]); 313126353Smlaier for (i = 31; tmp & (1 << i); --i) 314126353Smlaier b++; 315126353Smlaier } 316126353Smlaier return (b); 317126353Smlaier} 318