1241221Sglebius/* 2241221Sglebius * Copyright (c) 2012 Gleb Smirnoff <glebius@FreeBSD.org> 3241221Sglebius * Copyright (c) 2002 Michael Shalayeff 4241221Sglebius * Copyright (c) 2001 Daniel Hartmeier 5241221Sglebius * All rights reserved. 6241221Sglebius * 7241221Sglebius * Redistribution and use in source and binary forms, with or without 8241221Sglebius * modification, are permitted provided that the following conditions 9241221Sglebius * are met: 10241221Sglebius * 1. Redistributions of source code must retain the above copyright 11241221Sglebius * notice, this list of conditions and the following disclaimer. 12241221Sglebius * 2. Redistributions in binary form must reproduce the above copyright 13241221Sglebius * notice, this list of conditions and the following disclaimer in the 14241221Sglebius * documentation and/or other materials provided with the distribution. 15241221Sglebius * 16241221Sglebius * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17241221Sglebius * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18241221Sglebius * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19241221Sglebius * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20241221Sglebius * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21241221Sglebius * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22241221Sglebius * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23241221Sglebius * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24241221Sglebius * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25241221Sglebius * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26241221Sglebius * THE POSSIBILITY OF SUCH DAMAGE. 27241221Sglebius * 28241221Sglebius * $OpenBSD: print-pfsync.c,v 1.38 2012/09/19 13:50:36 mikeb Exp $ 29241221Sglebius * $OpenBSD: pf_print_state.c,v 1.11 2012/07/08 17:48:37 lteo Exp $ 30241221Sglebius */ 31241221Sglebius 32241221Sglebius#ifdef HAVE_CONFIG_H 33241221Sglebius#include "config.h" 34241221Sglebius#endif 35241221Sglebius 36241221Sglebius#include <tcpdump-stdinc.h> 37241221Sglebius 38241221Sglebius#include <sys/endian.h> 39241221Sglebius#include <net/if.h> 40241221Sglebius#include <net/pfvar.h> /* XXX */ 41241221Sglebius#include <net/if_pfsync.h> 42241221Sglebius#include <netinet/ip.h> 43241221Sglebius#define TCPSTATES 44241221Sglebius#include <netinet/tcp_fsm.h> 45241221Sglebius 46241221Sglebius#include <string.h> 47241221Sglebius 48241221Sglebius#include "interface.h" 49241221Sglebius#include "addrtoname.h" 50241221Sglebius 51241221Sglebiusstatic void pfsync_print(struct pfsync_header *, const u_char *, u_int); 52241221Sglebiusstatic void print_src_dst(const struct pfsync_state_peer *, 53241221Sglebius const struct pfsync_state_peer *, uint8_t); 54241221Sglebiusstatic void print_state(struct pfsync_state *); 55241221Sglebius 56241221Sglebius#ifdef notyet 57241221Sglebiusvoid 58241221Sglebiuspfsync_if_print(u_char *user, const struct pcap_pkthdr *h, 59241221Sglebius register const u_char *p) 60241221Sglebius{ 61241221Sglebius u_int caplen = h->caplen; 62241221Sglebius 63241221Sglebius ts_print(&h->ts); 64241221Sglebius 65241221Sglebius if (caplen < PFSYNC_HDRLEN) { 66241221Sglebius printf("[|pfsync]"); 67241221Sglebius goto out; 68241221Sglebius } 69241221Sglebius 70241221Sglebius pfsync_print((struct pfsync_header *)p, 71241221Sglebius p + sizeof(struct pfsync_header), 72241221Sglebius caplen - sizeof(struct pfsync_header)); 73241221Sglebiusout: 74241221Sglebius if (xflag) { 75241221Sglebius default_print((const u_char *)p, caplen); 76241221Sglebius } 77241221Sglebius putchar('\n'); 78241221Sglebius} 79241221Sglebius#endif /* notyet */ 80241221Sglebius 81241221Sglebiusvoid 82241221Sglebiuspfsync_ip_print(const u_char *bp, u_int len) 83241221Sglebius{ 84241221Sglebius struct pfsync_header *hdr = (struct pfsync_header *)bp; 85241221Sglebius 86241221Sglebius if (len < PFSYNC_HDRLEN) 87241221Sglebius printf("[|pfsync]"); 88241221Sglebius else 89241221Sglebius pfsync_print(hdr, bp + sizeof(struct pfsync_header), 90241221Sglebius len - sizeof(struct pfsync_header)); 91241221Sglebius} 92241221Sglebius 93241221Sglebiusstruct pfsync_actions { 94241221Sglebius const char *name; 95241221Sglebius size_t len; 96241221Sglebius void (*print)(const void *); 97241221Sglebius}; 98241221Sglebius 99241221Sglebiusstatic void pfsync_print_clr(const void *); 100241221Sglebiusstatic void pfsync_print_state(const void *); 101241221Sglebiusstatic void pfsync_print_ins_ack(const void *); 102241221Sglebiusstatic void pfsync_print_upd_c(const void *); 103241221Sglebiusstatic void pfsync_print_upd_req(const void *); 104241221Sglebiusstatic void pfsync_print_del_c(const void *); 105241221Sglebiusstatic void pfsync_print_bus(const void *); 106241221Sglebiusstatic void pfsync_print_tdb(const void *); 107241221Sglebius 108241221Sglebiusstruct pfsync_actions actions[] = { 109241221Sglebius { "clear all", sizeof(struct pfsync_clr), pfsync_print_clr }, 110241221Sglebius { "insert", sizeof(struct pfsync_state), pfsync_print_state }, 111241221Sglebius { "insert ack", sizeof(struct pfsync_ins_ack), pfsync_print_ins_ack }, 112241221Sglebius { "update", sizeof(struct pfsync_ins_ack), pfsync_print_state }, 113241221Sglebius { "update compressed", sizeof(struct pfsync_upd_c), 114241221Sglebius pfsync_print_upd_c }, 115241221Sglebius { "request uncompressed", sizeof(struct pfsync_upd_req), 116241221Sglebius pfsync_print_upd_req }, 117241221Sglebius { "delete", sizeof(struct pfsync_state), pfsync_print_state }, 118241221Sglebius { "delete compressed", sizeof(struct pfsync_del_c), 119241221Sglebius pfsync_print_del_c }, 120241221Sglebius { "frag insert", 0, NULL }, 121241221Sglebius { "frag delete", 0, NULL }, 122241221Sglebius { "bulk update status", sizeof(struct pfsync_bus), 123241221Sglebius pfsync_print_bus }, 124241221Sglebius { "tdb", 0, pfsync_print_tdb }, 125241221Sglebius { "eof", 0, NULL }, 126241221Sglebius}; 127241221Sglebius 128241221Sglebiusstatic void 129241221Sglebiuspfsync_print(struct pfsync_header *hdr, const u_char *bp, u_int len) 130241221Sglebius{ 131241221Sglebius struct pfsync_subheader *subh; 132241221Sglebius int count, plen, i; 133241221Sglebius u_int alen; 134241221Sglebius 135241221Sglebius plen = ntohs(hdr->len); 136241221Sglebius 137241221Sglebius printf("PFSYNCv%d len %d", hdr->version, plen); 138241221Sglebius 139241221Sglebius if (hdr->version != PFSYNC_VERSION) 140241221Sglebius return; 141241221Sglebius 142241221Sglebius plen -= sizeof(*hdr); 143241221Sglebius 144241221Sglebius while (plen > 0) { 145241221Sglebius if (len < sizeof(*subh)) 146241221Sglebius break; 147241221Sglebius 148241221Sglebius subh = (struct pfsync_subheader *)bp; 149241221Sglebius bp += sizeof(*subh); 150241221Sglebius len -= sizeof(*subh); 151241221Sglebius plen -= sizeof(*subh); 152241221Sglebius 153241221Sglebius if (subh->action >= PFSYNC_ACT_MAX) { 154241221Sglebius printf("\n act UNKNOWN id %d", subh->action); 155241221Sglebius return; 156241221Sglebius } 157241221Sglebius 158241221Sglebius count = ntohs(subh->count); 159241221Sglebius printf("\n %s count %d", actions[subh->action].name, count); 160241221Sglebius alen = actions[subh->action].len; 161241221Sglebius 162241221Sglebius if (subh->action == PFSYNC_ACT_EOF) 163241221Sglebius return; 164241221Sglebius 165241221Sglebius if (actions[subh->action].print == NULL) { 166241221Sglebius printf("\n unimplemented action %hhu", subh->action); 167241221Sglebius return; 168241221Sglebius } 169241221Sglebius 170241221Sglebius for (i = 0; i < count; i++) { 171241221Sglebius if (len < alen) { 172241221Sglebius len = 0; 173241221Sglebius break; 174241221Sglebius } 175241221Sglebius 176241221Sglebius if (vflag) 177241221Sglebius actions[subh->action].print(bp); 178241221Sglebius 179241221Sglebius bp += alen; 180241221Sglebius len -= alen; 181241221Sglebius plen -= alen; 182241221Sglebius } 183241221Sglebius } 184241221Sglebius 185241221Sglebius if (plen > 0) { 186241221Sglebius printf("\n ..."); 187241221Sglebius return; 188241221Sglebius } 189241221Sglebius if (plen < 0) { 190241221Sglebius printf("\n invalid header length"); 191241221Sglebius return; 192241221Sglebius } 193241221Sglebius if (len > 0) 194241221Sglebius printf("\n invalid packet length"); 195241221Sglebius} 196241221Sglebius 197241221Sglebiusstatic void 198241221Sglebiuspfsync_print_clr(const void *bp) 199241221Sglebius{ 200241221Sglebius const struct pfsync_clr *clr = bp; 201241221Sglebius 202241221Sglebius printf("\n\tcreatorid: %08x", htonl(clr->creatorid)); 203241221Sglebius if (clr->ifname[0] != '\0') 204241221Sglebius printf(" interface: %s", clr->ifname); 205241221Sglebius} 206241221Sglebius 207241221Sglebiusstatic void 208241221Sglebiuspfsync_print_state(const void *bp) 209241221Sglebius{ 210241221Sglebius struct pfsync_state *st = (struct pfsync_state *)bp; 211241221Sglebius 212241221Sglebius putchar('\n'); 213241221Sglebius print_state(st); 214241221Sglebius} 215241221Sglebius 216241221Sglebiusstatic void 217241221Sglebiuspfsync_print_ins_ack(const void *bp) 218241221Sglebius{ 219241221Sglebius const struct pfsync_ins_ack *iack = bp; 220241221Sglebius 221241221Sglebius printf("\n\tid: %016jx creatorid: %08x", (uintmax_t )be64toh(iack->id), 222241221Sglebius ntohl(iack->creatorid)); 223241221Sglebius} 224241221Sglebius 225241221Sglebiusstatic void 226241221Sglebiuspfsync_print_upd_c(const void *bp) 227241221Sglebius{ 228241221Sglebius const struct pfsync_upd_c *u = bp; 229241221Sglebius 230241221Sglebius printf("\n\tid: %016jx creatorid: %08x", (uintmax_t )be64toh(u->id), 231241221Sglebius ntohl(u->creatorid)); 232241221Sglebius if (vflag > 2) { 233241221Sglebius printf("\n\tTCP? :"); 234241221Sglebius print_src_dst(&u->src, &u->dst, IPPROTO_TCP); 235241221Sglebius } 236241221Sglebius} 237241221Sglebius 238241221Sglebiusstatic void 239241221Sglebiuspfsync_print_upd_req(const void *bp) 240241221Sglebius{ 241241221Sglebius const struct pfsync_upd_req *ur = bp; 242241221Sglebius 243241221Sglebius printf("\n\tid: %016jx creatorid: %08x", (uintmax_t )be64toh(ur->id), 244241221Sglebius ntohl(ur->creatorid)); 245241221Sglebius} 246241221Sglebius 247241221Sglebiusstatic void 248241221Sglebiuspfsync_print_del_c(const void *bp) 249241221Sglebius{ 250241221Sglebius const struct pfsync_del_c *d = bp; 251241221Sglebius 252241221Sglebius printf("\n\tid: %016jx creatorid: %08x", (uintmax_t )be64toh(d->id), 253241221Sglebius ntohl(d->creatorid)); 254241221Sglebius} 255241221Sglebius 256241221Sglebiusstatic void 257241221Sglebiuspfsync_print_bus(const void *bp) 258241221Sglebius{ 259241221Sglebius const struct pfsync_bus *b = bp; 260241221Sglebius uint32_t endtime; 261241221Sglebius int min, sec; 262241221Sglebius const char *status; 263241221Sglebius 264241221Sglebius endtime = ntohl(b->endtime); 265241221Sglebius sec = endtime % 60; 266241221Sglebius endtime /= 60; 267241221Sglebius min = endtime % 60; 268241221Sglebius endtime /= 60; 269241221Sglebius 270241221Sglebius switch (b->status) { 271241221Sglebius case PFSYNC_BUS_START: 272241221Sglebius status = "start"; 273241221Sglebius break; 274241221Sglebius case PFSYNC_BUS_END: 275241221Sglebius status = "end"; 276241221Sglebius break; 277241221Sglebius default: 278241221Sglebius status = "UNKNOWN"; 279241221Sglebius break; 280241221Sglebius } 281241221Sglebius 282241221Sglebius printf("\n\tcreatorid: %08x age: %.2u:%.2u:%.2u status: %s", 283241221Sglebius htonl(b->creatorid), endtime, min, sec, status); 284241221Sglebius} 285241221Sglebius 286241221Sglebiusstatic void 287241221Sglebiuspfsync_print_tdb(const void *bp) 288241221Sglebius{ 289241221Sglebius const struct pfsync_tdb *t = bp; 290241221Sglebius 291241221Sglebius printf("\n\tspi: 0x%08x rpl: %ju cur_bytes: %ju", 292241221Sglebius ntohl(t->spi), (uintmax_t )be64toh(t->rpl), 293241221Sglebius (uintmax_t )be64toh(t->cur_bytes)); 294241221Sglebius} 295241221Sglebius 296241221Sglebiusstatic void 297241221Sglebiusprint_host(struct pf_addr *addr, uint16_t port, sa_family_t af, 298241221Sglebius const char *proto) 299241221Sglebius{ 300241221Sglebius char buf[48]; 301241221Sglebius 302241221Sglebius if (inet_ntop(af, addr, buf, sizeof(buf)) == NULL) 303241221Sglebius printf("?"); 304241221Sglebius else 305241221Sglebius printf("%s", buf); 306241221Sglebius 307241221Sglebius if (port) 308241221Sglebius printf(".%hu", ntohs(port)); 309241221Sglebius} 310241221Sglebius 311241221Sglebiusstatic void 312241221Sglebiusprint_seq(const struct pfsync_state_peer *p) 313241221Sglebius{ 314241221Sglebius if (p->seqdiff) 315241221Sglebius printf("[%u + %u](+%u)", ntohl(p->seqlo), 316241221Sglebius ntohl(p->seqhi) - ntohl(p->seqlo), ntohl(p->seqdiff)); 317241221Sglebius else 318241221Sglebius printf("[%u + %u]", ntohl(p->seqlo), 319241221Sglebius ntohl(p->seqhi) - ntohl(p->seqlo)); 320241221Sglebius} 321241221Sglebius 322241221Sglebiusstatic void 323241221Sglebiusprint_src_dst(const struct pfsync_state_peer *src, 324241221Sglebius const struct pfsync_state_peer *dst, uint8_t proto) 325241221Sglebius{ 326241221Sglebius 327241221Sglebius if (proto == IPPROTO_TCP) { 328241221Sglebius if (src->state <= TCPS_TIME_WAIT && 329241221Sglebius dst->state <= TCPS_TIME_WAIT) 330241221Sglebius printf(" %s:%s", tcpstates[src->state], 331241221Sglebius tcpstates[dst->state]); 332241221Sglebius else if (src->state == PF_TCPS_PROXY_SRC || 333241221Sglebius dst->state == PF_TCPS_PROXY_SRC) 334241221Sglebius printf(" PROXY:SRC"); 335241221Sglebius else if (src->state == PF_TCPS_PROXY_DST || 336241221Sglebius dst->state == PF_TCPS_PROXY_DST) 337241221Sglebius printf(" PROXY:DST"); 338241221Sglebius else 339241221Sglebius printf(" <BAD STATE LEVELS %u:%u>", 340241221Sglebius src->state, dst->state); 341241221Sglebius if (vflag > 1) { 342241221Sglebius printf("\n\t"); 343241221Sglebius print_seq(src); 344241221Sglebius if (src->wscale && dst->wscale) 345241221Sglebius printf(" wscale %u", 346241221Sglebius src->wscale & PF_WSCALE_MASK); 347241221Sglebius printf(" "); 348241221Sglebius print_seq(dst); 349241221Sglebius if (src->wscale && dst->wscale) 350241221Sglebius printf(" wscale %u", 351241221Sglebius dst->wscale & PF_WSCALE_MASK); 352241221Sglebius } 353241221Sglebius } else if (proto == IPPROTO_UDP && src->state < PFUDPS_NSTATES && 354241221Sglebius dst->state < PFUDPS_NSTATES) { 355241221Sglebius const char *states[] = PFUDPS_NAMES; 356241221Sglebius 357241221Sglebius printf(" %s:%s", states[src->state], states[dst->state]); 358241221Sglebius } else if (proto != IPPROTO_ICMP && src->state < PFOTHERS_NSTATES && 359241221Sglebius dst->state < PFOTHERS_NSTATES) { 360241221Sglebius /* XXX ICMP doesn't really have state levels */ 361241221Sglebius const char *states[] = PFOTHERS_NAMES; 362241221Sglebius 363241221Sglebius printf(" %s:%s", states[src->state], states[dst->state]); 364241221Sglebius } else { 365241221Sglebius printf(" %u:%u", src->state, dst->state); 366241221Sglebius } 367241221Sglebius} 368241221Sglebius 369241221Sglebiusstatic void 370241221Sglebiusprint_state(struct pfsync_state *s) 371241221Sglebius{ 372241221Sglebius struct pfsync_state_peer *src, *dst; 373241221Sglebius struct pfsync_state_key *sk, *nk; 374241221Sglebius int min, sec; 375241221Sglebius 376241221Sglebius if (s->direction == PF_OUT) { 377241221Sglebius src = &s->src; 378241221Sglebius dst = &s->dst; 379241221Sglebius sk = &s->key[PF_SK_STACK]; 380241221Sglebius nk = &s->key[PF_SK_WIRE]; 381241221Sglebius if (s->proto == IPPROTO_ICMP || s->proto == IPPROTO_ICMPV6) 382241221Sglebius sk->port[0] = nk->port[0]; 383241221Sglebius } else { 384241221Sglebius src = &s->dst; 385241221Sglebius dst = &s->src; 386241221Sglebius sk = &s->key[PF_SK_WIRE]; 387241221Sglebius nk = &s->key[PF_SK_STACK]; 388241221Sglebius if (s->proto == IPPROTO_ICMP || s->proto == IPPROTO_ICMPV6) 389241221Sglebius sk->port[1] = nk->port[1]; 390241221Sglebius } 391241221Sglebius printf("\t%s ", s->ifname); 392241221Sglebius printf("proto %u ", s->proto); 393241221Sglebius 394241221Sglebius print_host(&nk->addr[1], nk->port[1], s->af, NULL); 395241221Sglebius if (PF_ANEQ(&nk->addr[1], &sk->addr[1], s->af) || 396241221Sglebius nk->port[1] != sk->port[1]) { 397241221Sglebius printf(" ("); 398241221Sglebius print_host(&sk->addr[1], sk->port[1], s->af, NULL); 399241221Sglebius printf(")"); 400241221Sglebius } 401241221Sglebius if (s->direction == PF_OUT) 402241221Sglebius printf(" -> "); 403241221Sglebius else 404241221Sglebius printf(" <- "); 405241221Sglebius print_host(&nk->addr[0], nk->port[0], s->af, NULL); 406241221Sglebius if (PF_ANEQ(&nk->addr[0], &sk->addr[0], s->af) || 407241221Sglebius nk->port[0] != sk->port[0]) { 408241221Sglebius printf(" ("); 409241221Sglebius print_host(&sk->addr[0], sk->port[0], s->af, NULL); 410241221Sglebius printf(")"); 411241221Sglebius } 412241221Sglebius 413241221Sglebius print_src_dst(src, dst, s->proto); 414241221Sglebius 415241221Sglebius if (vflag > 1) { 416241221Sglebius uint64_t packets[2]; 417241221Sglebius uint64_t bytes[2]; 418241221Sglebius uint32_t creation = ntohl(s->creation); 419241221Sglebius uint32_t expire = ntohl(s->expire); 420241221Sglebius 421241221Sglebius sec = creation % 60; 422241221Sglebius creation /= 60; 423241221Sglebius min = creation % 60; 424241221Sglebius creation /= 60; 425241221Sglebius printf("\n\tage %.2u:%.2u:%.2u", creation, min, sec); 426241221Sglebius sec = expire % 60; 427241221Sglebius expire /= 60; 428241221Sglebius min = expire % 60; 429241221Sglebius expire /= 60; 430241221Sglebius printf(", expires in %.2u:%.2u:%.2u", expire, min, sec); 431241221Sglebius 432241221Sglebius bcopy(s->packets[0], &packets[0], sizeof(uint64_t)); 433241221Sglebius bcopy(s->packets[1], &packets[1], sizeof(uint64_t)); 434241221Sglebius bcopy(s->bytes[0], &bytes[0], sizeof(uint64_t)); 435241221Sglebius bcopy(s->bytes[1], &bytes[1], sizeof(uint64_t)); 436241221Sglebius printf(", %ju:%ju pkts, %ju:%ju bytes", 437241221Sglebius be64toh(packets[0]), be64toh(packets[1]), 438241221Sglebius be64toh(bytes[0]), be64toh(bytes[1])); 439241221Sglebius if (s->anchor != ntohl(-1)) 440241221Sglebius printf(", anchor %u", ntohl(s->anchor)); 441241221Sglebius if (s->rule != ntohl(-1)) 442241221Sglebius printf(", rule %u", ntohl(s->rule)); 443241221Sglebius } 444241221Sglebius if (vflag > 1) { 445241221Sglebius uint64_t id; 446241221Sglebius 447241221Sglebius bcopy(&s->id, &id, sizeof(uint64_t)); 448241221Sglebius printf("\n\tid: %016jx creatorid: %08x", 449241221Sglebius (uintmax_t )be64toh(id), ntohl(s->creatorid)); 450241221Sglebius } 451241221Sglebius} 452