1145519Sdarrenr/* $FreeBSD$ */ 2145510Sdarrenr 3145510Sdarrenr/* 4255332Scy * Copyright (C) 2012 by Darren Reed. 5145510Sdarrenr * 6145510Sdarrenr * See the IPFILTER.LICENCE file for details on licencing. 7145510Sdarrenr * 8145510Sdarrenr * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com) 9145510Sdarrenr */ 10145510Sdarrenr#include <stdio.h> 11145510Sdarrenr#include <string.h> 12145510Sdarrenr#include <fcntl.h> 13145510Sdarrenr#include <errno.h> 14145510Sdarrenr#include <sys/types.h> 15145510Sdarrenr#if !defined(__SVR4) && !defined(__svr4__) 16145510Sdarrenr#include <strings.h> 17145510Sdarrenr#else 18145510Sdarrenr#include <sys/byteorder.h> 19145510Sdarrenr#endif 20145510Sdarrenr#include <sys/time.h> 21145510Sdarrenr#include <sys/param.h> 22145510Sdarrenr#include <stdlib.h> 23145510Sdarrenr#include <unistd.h> 24145510Sdarrenr#include <stddef.h> 25145510Sdarrenr#include <sys/file.h> 26145510Sdarrenr#define _KERNEL 27145510Sdarrenr#include <sys/uio.h> 28145510Sdarrenr#undef _KERNEL 29145510Sdarrenr#include <sys/socket.h> 30145510Sdarrenr#include <sys/ioctl.h> 31145510Sdarrenr#if defined(sun) && (defined(__svr4__) || defined(__SVR4)) 32145510Sdarrenr# include <sys/ioccom.h> 33145510Sdarrenr# include <sys/sysmacros.h> 34145510Sdarrenr#endif 35145510Sdarrenr#include <netinet/in.h> 36145510Sdarrenr#include <netinet/in_systm.h> 37145510Sdarrenr#include <netinet/ip.h> 38145510Sdarrenr#include <netinet/tcp.h> 39145510Sdarrenr#include <net/if.h> 40145510Sdarrenr#if __FreeBSD_version >= 300000 41145510Sdarrenr# include <net/if_var.h> 42145510Sdarrenr#endif 43145510Sdarrenr#include <netdb.h> 44145510Sdarrenr#include <arpa/nameser.h> 45145510Sdarrenr#include <arpa/inet.h> 46145510Sdarrenr#include <resolv.h> 47145510Sdarrenr#include <ctype.h> 48145510Sdarrenr#if defined(linux) 49145510Sdarrenr# include <linux/a.out.h> 50145510Sdarrenr#else 51145510Sdarrenr# include <nlist.h> 52145510Sdarrenr#endif 53145510Sdarrenr#include "ipf.h" 54145554Sdarrenr#include "netinet/ipl.h" 55145510Sdarrenr#include "kmem.h" 56145510Sdarrenr 57145510Sdarrenr#ifdef __hpux 58145510Sdarrenr# define nlist nlist64 59145510Sdarrenr#endif 60145510Sdarrenr 61145510Sdarrenr#if defined(sun) && !SOLARIS2 62145510Sdarrenr# define STRERROR(x) sys_errlist[x] 63145510Sdarrenrextern char *sys_errlist[]; 64145510Sdarrenr#else 65145510Sdarrenr# define STRERROR(x) strerror(x) 66145510Sdarrenr#endif 67145510Sdarrenr 68145510Sdarrenr#if !defined(lint) 69145510Sdarrenrstatic const char sccsid[] ="@(#)ipnat.c 1.9 6/5/96 (C) 1993 Darren Reed"; 70255332Scystatic const char rcsid[] = "@(#)$Id$"; 71145510Sdarrenr#endif 72145510Sdarrenr 73145510Sdarrenr 74145510Sdarrenr#if SOLARIS 75145510Sdarrenr#define bzero(a,b) memset(a,0,b) 76145510Sdarrenr#endif 77145510Sdarrenrint use_inet6 = 0; 78145510Sdarrenrchar thishost[MAXHOSTNAMELEN]; 79145510Sdarrenr 80145510Sdarrenrextern char *optarg; 81145510Sdarrenr 82255332Scyvoid dostats __P((int, natstat_t *, int, int, int *)); 83255332Scyvoid dotable __P((natstat_t *, int, int, int, char *)); 84255332Scyvoid flushtable __P((int, int, int *)); 85145510Sdarrenrvoid usage __P((char *)); 86145510Sdarrenrint main __P((int, char*[])); 87145510Sdarrenrvoid showhostmap __P((natstat_t *nsp)); 88145510Sdarrenrvoid natstat_dead __P((natstat_t *, char *)); 89255332Scyvoid dostats_live __P((int, natstat_t *, int, int *)); 90170268Sdarrenrvoid showhostmap_dead __P((natstat_t *)); 91170268Sdarrenrvoid showhostmap_live __P((int, natstat_t *)); 92255332Scyvoid dostats_dead __P((natstat_t *, int, int *)); 93255332Scyint nat_matcharray __P((nat_t *, int *)); 94145510Sdarrenr 95255332Scyint opts; 96255332Scyint nohdrfields = 0; 97255332Scywordtab_t *nat_fields = NULL; 98145510Sdarrenr 99145510Sdarrenrvoid usage(name) 100255332Scy char *name; 101145510Sdarrenr{ 102145510Sdarrenr fprintf(stderr, "Usage: %s [-CFhlnrRsv] [-f filename]\n", name); 103145510Sdarrenr exit(1); 104145510Sdarrenr} 105145510Sdarrenr 106145510Sdarrenr 107145510Sdarrenrint main(argc, argv) 108255332Scy int argc; 109255332Scy char *argv[]; 110145510Sdarrenr{ 111255332Scy int fd, c, mode, *natfilter; 112145510Sdarrenr char *file, *core, *kernel; 113145510Sdarrenr natstat_t ns, *nsp; 114145510Sdarrenr ipfobj_t obj; 115145510Sdarrenr 116145510Sdarrenr fd = -1; 117145510Sdarrenr opts = 0; 118145510Sdarrenr nsp = &ns; 119145510Sdarrenr file = NULL; 120145510Sdarrenr core = NULL; 121145510Sdarrenr kernel = NULL; 122145510Sdarrenr mode = O_RDWR; 123255332Scy natfilter = NULL; 124145510Sdarrenr 125255332Scy assigndefined(getenv("IPNAT_PREDEFINED")); 126255332Scy 127255332Scy while ((c = getopt(argc, argv, "CdFf:hlm:M:N:nO:prRsv")) != -1) 128145510Sdarrenr switch (c) 129145510Sdarrenr { 130145510Sdarrenr case 'C' : 131145510Sdarrenr opts |= OPT_CLEAR; 132145510Sdarrenr break; 133145510Sdarrenr case 'd' : 134145510Sdarrenr opts |= OPT_DEBUG; 135145510Sdarrenr break; 136145510Sdarrenr case 'f' : 137145510Sdarrenr file = optarg; 138145510Sdarrenr break; 139145510Sdarrenr case 'F' : 140145510Sdarrenr opts |= OPT_FLUSH; 141145510Sdarrenr break; 142145510Sdarrenr case 'h' : 143145510Sdarrenr opts |=OPT_HITS; 144145510Sdarrenr break; 145145510Sdarrenr case 'l' : 146145510Sdarrenr opts |= OPT_LIST; 147145510Sdarrenr mode = O_RDONLY; 148145510Sdarrenr break; 149255332Scy case 'm' : 150255332Scy natfilter = parseipfexpr(optarg, NULL); 151255332Scy break; 152145510Sdarrenr case 'M' : 153145510Sdarrenr core = optarg; 154145510Sdarrenr break; 155145510Sdarrenr case 'N' : 156145510Sdarrenr kernel = optarg; 157145510Sdarrenr break; 158145510Sdarrenr case 'n' : 159255332Scy opts |= OPT_DONOTHING|OPT_DONTOPEN; 160145510Sdarrenr mode = O_RDONLY; 161145510Sdarrenr break; 162255332Scy case 'O' : 163255332Scy nat_fields = parsefields(natfields, optarg); 164255332Scy break; 165255332Scy case 'p' : 166255332Scy opts |= OPT_PURGE; 167255332Scy break; 168145510Sdarrenr case 'R' : 169145510Sdarrenr opts |= OPT_NORESOLVE; 170145510Sdarrenr break; 171145510Sdarrenr case 'r' : 172145510Sdarrenr opts |= OPT_REMOVE; 173145510Sdarrenr break; 174145510Sdarrenr case 's' : 175145510Sdarrenr opts |= OPT_STAT; 176145510Sdarrenr mode = O_RDONLY; 177145510Sdarrenr break; 178145510Sdarrenr case 'v' : 179145510Sdarrenr opts |= OPT_VERBOSE; 180145510Sdarrenr break; 181145510Sdarrenr default : 182145510Sdarrenr usage(argv[0]); 183145510Sdarrenr } 184145510Sdarrenr 185255332Scy if (((opts & OPT_PURGE) != 0) && ((opts & OPT_REMOVE) == 0)) { 186255332Scy (void) fprintf(stderr, "%s: -p must be used with -r\n", 187255332Scy argv[0]); 188255332Scy exit(1); 189255332Scy } 190255332Scy 191145510Sdarrenr initparse(); 192145510Sdarrenr 193145510Sdarrenr if ((kernel != NULL) || (core != NULL)) { 194145510Sdarrenr (void) setgid(getgid()); 195145510Sdarrenr (void) setuid(getuid()); 196145510Sdarrenr } 197145510Sdarrenr 198170268Sdarrenr if (!(opts & OPT_DONOTHING)) { 199170268Sdarrenr if (((fd = open(IPNAT_NAME, mode)) == -1) && 200170268Sdarrenr ((fd = open(IPNAT_NAME, O_RDONLY)) == -1)) { 201170268Sdarrenr (void) fprintf(stderr, "%s: open: %s\n", IPNAT_NAME, 202170268Sdarrenr STRERROR(errno)); 203170268Sdarrenr exit(1); 204170268Sdarrenr } 205170268Sdarrenr } 206170268Sdarrenr 207145510Sdarrenr bzero((char *)&ns, sizeof(ns)); 208145510Sdarrenr 209145510Sdarrenr if ((opts & OPT_DONOTHING) == 0) { 210145510Sdarrenr if (checkrev(IPL_NAME) == -1) { 211145510Sdarrenr fprintf(stderr, "User/kernel version check failed\n"); 212145510Sdarrenr exit(1); 213145510Sdarrenr } 214145510Sdarrenr } 215145510Sdarrenr 216145510Sdarrenr if (!(opts & OPT_DONOTHING) && (kernel == NULL) && (core == NULL)) { 217145510Sdarrenr bzero((char *)&obj, sizeof(obj)); 218145510Sdarrenr obj.ipfo_rev = IPFILTER_VERSION; 219170268Sdarrenr obj.ipfo_type = IPFOBJ_NATSTAT; 220145510Sdarrenr obj.ipfo_size = sizeof(*nsp); 221145510Sdarrenr obj.ipfo_ptr = (void *)nsp; 222145510Sdarrenr if (ioctl(fd, SIOCGNATS, &obj) == -1) { 223255332Scy ipferror(fd, "ioctl(SIOCGNATS)"); 224145510Sdarrenr exit(1); 225145510Sdarrenr } 226145510Sdarrenr (void) setgid(getgid()); 227145510Sdarrenr (void) setuid(getuid()); 228145510Sdarrenr } else if ((kernel != NULL) || (core != NULL)) { 229145510Sdarrenr if (openkmem(kernel, core) == -1) 230145510Sdarrenr exit(1); 231145510Sdarrenr 232145510Sdarrenr natstat_dead(nsp, kernel); 233145510Sdarrenr if (opts & (OPT_LIST|OPT_STAT)) 234255332Scy dostats(fd, nsp, opts, 0, natfilter); 235145510Sdarrenr exit(0); 236145510Sdarrenr } 237145510Sdarrenr 238145510Sdarrenr if (opts & (OPT_FLUSH|OPT_CLEAR)) 239255332Scy flushtable(fd, opts, natfilter); 240145510Sdarrenr if (file) { 241255332Scy return ipnat_parsefile(fd, ipnat_addrule, ioctl, file); 242145510Sdarrenr } 243145510Sdarrenr if (opts & (OPT_LIST|OPT_STAT)) 244255332Scy dostats(fd, nsp, opts, 1, natfilter); 245145510Sdarrenr return 0; 246145510Sdarrenr} 247145510Sdarrenr 248145510Sdarrenr 249145510Sdarrenr/* 250145510Sdarrenr * Read NAT statistic information in using a symbol table and memory file 251145510Sdarrenr * rather than doing ioctl's. 252145510Sdarrenr */ 253145510Sdarrenrvoid natstat_dead(nsp, kernel) 254255332Scy natstat_t *nsp; 255255332Scy char *kernel; 256145510Sdarrenr{ 257145510Sdarrenr struct nlist nat_nlist[10] = { 258145510Sdarrenr { "nat_table" }, /* 0 */ 259145510Sdarrenr { "nat_list" }, 260145510Sdarrenr { "maptable" }, 261145510Sdarrenr { "ipf_nattable_sz" }, 262145510Sdarrenr { "ipf_natrules_sz" }, 263145510Sdarrenr { "ipf_rdrrules_sz" }, /* 5 */ 264145510Sdarrenr { "ipf_hostmap_sz" }, 265145510Sdarrenr { "nat_instances" }, 266145510Sdarrenr { NULL } 267145510Sdarrenr }; 268145510Sdarrenr void *tables[2]; 269145510Sdarrenr 270145510Sdarrenr if (nlist(kernel, nat_nlist) == -1) { 271145510Sdarrenr fprintf(stderr, "nlist error\n"); 272145510Sdarrenr return; 273145510Sdarrenr } 274145510Sdarrenr 275145510Sdarrenr /* 276145510Sdarrenr * Normally the ioctl copies all of these values into the structure 277145510Sdarrenr * for us, before returning it to userland, so here we must copy each 278145510Sdarrenr * one in individually. 279145510Sdarrenr */ 280145510Sdarrenr kmemcpy((char *)&tables, nat_nlist[0].n_value, sizeof(tables)); 281255332Scy nsp->ns_side[0].ns_table = tables[0]; 282255332Scy nsp->ns_side[1].ns_table = tables[1]; 283145510Sdarrenr 284145510Sdarrenr kmemcpy((char *)&nsp->ns_list, nat_nlist[1].n_value, 285145510Sdarrenr sizeof(nsp->ns_list)); 286145510Sdarrenr kmemcpy((char *)&nsp->ns_maptable, nat_nlist[2].n_value, 287145510Sdarrenr sizeof(nsp->ns_maptable)); 288145510Sdarrenr kmemcpy((char *)&nsp->ns_nattab_sz, nat_nlist[3].n_value, 289145510Sdarrenr sizeof(nsp->ns_nattab_sz)); 290145510Sdarrenr kmemcpy((char *)&nsp->ns_rultab_sz, nat_nlist[4].n_value, 291145510Sdarrenr sizeof(nsp->ns_rultab_sz)); 292145510Sdarrenr kmemcpy((char *)&nsp->ns_rdrtab_sz, nat_nlist[5].n_value, 293145510Sdarrenr sizeof(nsp->ns_rdrtab_sz)); 294145510Sdarrenr kmemcpy((char *)&nsp->ns_hostmap_sz, nat_nlist[6].n_value, 295145510Sdarrenr sizeof(nsp->ns_hostmap_sz)); 296145510Sdarrenr kmemcpy((char *)&nsp->ns_instances, nat_nlist[7].n_value, 297145510Sdarrenr sizeof(nsp->ns_instances)); 298145510Sdarrenr} 299145510Sdarrenr 300145510Sdarrenr 301145510Sdarrenr/* 302170268Sdarrenr * Issue an ioctl to flush either the NAT rules table or the active mapping 303170268Sdarrenr * table or both. 304170268Sdarrenr */ 305255332Scyvoid flushtable(fd, opts, match) 306255332Scy int fd, opts, *match; 307170268Sdarrenr{ 308170268Sdarrenr int n = 0; 309170268Sdarrenr 310170268Sdarrenr if (opts & OPT_FLUSH) { 311170268Sdarrenr n = 0; 312255332Scy if (!(opts & OPT_DONOTHING)) { 313255332Scy if (match != NULL) { 314255332Scy ipfobj_t obj; 315255332Scy 316255332Scy obj.ipfo_rev = IPFILTER_VERSION; 317255332Scy obj.ipfo_size = match[0] * sizeof(int); 318255332Scy obj.ipfo_type = IPFOBJ_IPFEXPR; 319255332Scy obj.ipfo_ptr = match; 320255332Scy if (ioctl(fd, SIOCMATCHFLUSH, &obj) == -1) { 321255332Scy ipferror(fd, "ioctl(SIOCMATCHFLUSH)"); 322255332Scy n = -1; 323255332Scy } else { 324255332Scy n = obj.ipfo_retval; 325255332Scy } 326255332Scy } else if (ioctl(fd, SIOCIPFFL, &n) == -1) { 327255332Scy ipferror(fd, "ioctl(SIOCIPFFL)"); 328255332Scy n = -1; 329255332Scy } 330255332Scy } 331255332Scy if (n >= 0) 332170268Sdarrenr printf("%d entries flushed from NAT table\n", n); 333170268Sdarrenr } 334170268Sdarrenr 335170268Sdarrenr if (opts & OPT_CLEAR) { 336170268Sdarrenr n = 1; 337170268Sdarrenr if (!(opts & OPT_DONOTHING) && ioctl(fd, SIOCIPFFL, &n) == -1) 338255332Scy ipferror(fd, "ioctl(SIOCCNATL)"); 339170268Sdarrenr else 340170268Sdarrenr printf("%d entries flushed from NAT list\n", n); 341170268Sdarrenr } 342170268Sdarrenr} 343170268Sdarrenr 344170268Sdarrenr 345170268Sdarrenr/* 346145510Sdarrenr * Display NAT statistics. 347145510Sdarrenr */ 348255332Scyvoid dostats_dead(nsp, opts, filter) 349255332Scy natstat_t *nsp; 350255332Scy int opts, *filter; 351145510Sdarrenr{ 352145510Sdarrenr nat_t *np, nat; 353145510Sdarrenr ipnat_t ipn; 354255332Scy int i; 355145510Sdarrenr 356255332Scy if (nat_fields == NULL) { 357255332Scy printf("List of active MAP/Redirect filters:\n"); 358255332Scy while (nsp->ns_list) { 359255332Scy if (kmemcpy((char *)&ipn, (long)nsp->ns_list, 360255332Scy sizeof(ipn))) { 361255332Scy perror("kmemcpy"); 362255332Scy break; 363255332Scy } 364255332Scy if (opts & OPT_HITS) 365255332Scy printf("%lu ", ipn.in_hits); 366255332Scy printnat(&ipn, opts & (OPT_DEBUG|OPT_VERBOSE)); 367255332Scy nsp->ns_list = ipn.in_next; 368170268Sdarrenr } 369170268Sdarrenr } 370170268Sdarrenr 371255332Scy if (nat_fields == NULL) { 372255332Scy printf("\nList of active sessions:\n"); 373170268Sdarrenr 374255332Scy } else if (nohdrfields == 0) { 375255332Scy for (i = 0; nat_fields[i].w_value != 0; i++) { 376255332Scy printfieldhdr(natfields, nat_fields + i); 377255332Scy if (nat_fields[i + 1].w_value != 0) 378255332Scy printf("\t"); 379255332Scy } 380255332Scy printf("\n"); 381255332Scy } 382255332Scy 383170268Sdarrenr for (np = nsp->ns_instances; np; np = nat.nat_next) { 384170268Sdarrenr if (kmemcpy((char *)&nat, (long)np, sizeof(nat))) 385170268Sdarrenr break; 386255332Scy if ((filter != NULL) && (nat_matcharray(&nat, filter) == 0)) 387255332Scy continue; 388255332Scy if (nat_fields != NULL) { 389255332Scy for (i = 0; nat_fields[i].w_value != 0; i++) { 390255332Scy printnatfield(&nat, nat_fields[i].w_value); 391255332Scy if (nat_fields[i + 1].w_value != 0) 392255332Scy printf("\t"); 393255332Scy } 394255332Scy printf("\n"); 395255332Scy } else { 396255332Scy printactivenat(&nat, opts, nsp->ns_ticks); 397255332Scy if (nat.nat_aps) { 398255332Scy int proto; 399255332Scy 400255332Scy if (nat.nat_dir & NAT_OUTBOUND) 401255332Scy proto = nat.nat_pr[1]; 402255332Scy else 403255332Scy proto = nat.nat_pr[0]; 404255332Scy printaps(nat.nat_aps, opts, proto); 405255332Scy } 406255332Scy } 407170268Sdarrenr } 408170268Sdarrenr 409170268Sdarrenr if (opts & OPT_VERBOSE) 410170268Sdarrenr showhostmap_dead(nsp); 411170268Sdarrenr} 412170268Sdarrenr 413170268Sdarrenr 414255332Scyvoid dotable(nsp, fd, alive, which, side) 415255332Scy natstat_t *nsp; 416255332Scy int fd, alive, which; 417255332Scy char *side; 418170268Sdarrenr{ 419255332Scy int sz, i, used, maxlen, minlen, totallen; 420172776Sdarrenr ipftable_t table; 421255332Scy u_int *buckets; 422172776Sdarrenr ipfobj_t obj; 423172776Sdarrenr 424172776Sdarrenr sz = sizeof(*buckets) * nsp->ns_nattab_sz; 425255332Scy buckets = (u_int *)malloc(sz); 426255332Scy if (buckets == NULL) { 427255332Scy fprintf(stderr, 428255332Scy "cannot allocate memory (%d) for buckets\n", sz); 429255332Scy return; 430255332Scy } 431172776Sdarrenr 432172776Sdarrenr obj.ipfo_rev = IPFILTER_VERSION; 433172776Sdarrenr obj.ipfo_type = IPFOBJ_GTABLE; 434172776Sdarrenr obj.ipfo_size = sizeof(table); 435172776Sdarrenr obj.ipfo_ptr = &table; 436172776Sdarrenr 437255332Scy if (which == 0) { 438255332Scy table.ita_type = IPFTABLE_BUCKETS_NATIN; 439255332Scy } else if (which == 1) { 440255332Scy table.ita_type = IPFTABLE_BUCKETS_NATOUT; 441255332Scy } 442172776Sdarrenr table.ita_table = buckets; 443172776Sdarrenr 444172776Sdarrenr if (alive) { 445172776Sdarrenr if (ioctl(fd, SIOCGTABL, &obj) != 0) { 446255332Scy ipferror(fd, "SIOCFTABL"); 447172776Sdarrenr free(buckets); 448172776Sdarrenr return; 449172776Sdarrenr } 450172776Sdarrenr } else { 451172776Sdarrenr if (kmemcpy((char *)buckets, (u_long)nsp->ns_nattab_sz, sz)) { 452172776Sdarrenr free(buckets); 453172776Sdarrenr return; 454172776Sdarrenr } 455172776Sdarrenr } 456172776Sdarrenr 457255332Scy minlen = nsp->ns_side[which].ns_inuse; 458172776Sdarrenr totallen = 0; 459172776Sdarrenr maxlen = 0; 460172776Sdarrenr used = 0; 461172776Sdarrenr 462172776Sdarrenr for (i = 0; i < nsp->ns_nattab_sz; i++) { 463172776Sdarrenr if (buckets[i] > maxlen) 464172776Sdarrenr maxlen = buckets[i]; 465172776Sdarrenr if (buckets[i] < minlen) 466172776Sdarrenr minlen = buckets[i]; 467172776Sdarrenr if (buckets[i] != 0) 468172776Sdarrenr used++; 469172776Sdarrenr totallen += buckets[i]; 470172776Sdarrenr } 471172776Sdarrenr 472255332Scy printf("%d%%\thash efficiency %s\n", 473255332Scy totallen ? used * 100 / totallen : 0, side); 474255332Scy printf("%2.2f%%\tbucket usage %s\n", 475255332Scy ((float)used / nsp->ns_nattab_sz) * 100.0, side); 476255332Scy printf("%d\tminimal length %s\n", minlen, side); 477255332Scy printf("%d\tmaximal length %s\n", maxlen, side); 478255332Scy printf("%.3f\taverage length %s\n", 479255332Scy used ? ((float)totallen / used) : 0.0, side); 480255332Scy 481255332Scy free(buckets); 482172776Sdarrenr} 483172776Sdarrenr 484172776Sdarrenr 485255332Scyvoid dostats(fd, nsp, opts, alive, filter) 486255332Scy natstat_t *nsp; 487255332Scy int fd, opts, alive, *filter; 488255332Scy{ 489255332Scy /* 490255332Scy * Show statistics ? 491255332Scy */ 492255332Scy if (opts & OPT_STAT) { 493255332Scy printnatside("in", &nsp->ns_side[0]); 494255332Scy dotable(nsp, fd, alive, 0, "in"); 495255332Scy 496255332Scy printnatside("out", &nsp->ns_side[1]); 497255332Scy dotable(nsp, fd, alive, 1, "out"); 498255332Scy 499255332Scy printf("%lu\tlog successes\n", nsp->ns_side[0].ns_log); 500255332Scy printf("%lu\tlog failures\n", nsp->ns_side[1].ns_log); 501255332Scy printf("%lu\tadded in\n%lu\tadded out\n", 502255332Scy nsp->ns_side[0].ns_added, 503255332Scy nsp->ns_side[1].ns_added); 504255332Scy printf("%u\tactive\n", nsp->ns_active); 505255332Scy printf("%lu\ttransparent adds\n", nsp->ns_addtrpnt); 506255332Scy printf("%lu\tdivert build\n", nsp->ns_divert_build); 507255332Scy printf("%lu\texpired\n", nsp->ns_expire); 508255332Scy printf("%lu\tflush all\n", nsp->ns_flush_all); 509255332Scy printf("%lu\tflush closing\n", nsp->ns_flush_closing); 510255332Scy printf("%lu\tflush queue\n", nsp->ns_flush_queue); 511255332Scy printf("%lu\tflush state\n", nsp->ns_flush_state); 512255332Scy printf("%lu\tflush timeout\n", nsp->ns_flush_timeout); 513255332Scy printf("%lu\thostmap new\n", nsp->ns_hm_new); 514255332Scy printf("%lu\thostmap fails\n", nsp->ns_hm_newfail); 515255332Scy printf("%lu\thostmap add\n", nsp->ns_hm_addref); 516255332Scy printf("%lu\thostmap NULL rule\n", nsp->ns_hm_nullnp); 517255332Scy printf("%lu\tlog ok\n", nsp->ns_log_ok); 518255332Scy printf("%lu\tlog fail\n", nsp->ns_log_fail); 519255332Scy printf("%u\torphan count\n", nsp->ns_orphans); 520255332Scy printf("%u\trule count\n", nsp->ns_rules); 521255332Scy printf("%u\tmap rules\n", nsp->ns_rules_map); 522255332Scy printf("%u\trdr rules\n", nsp->ns_rules_rdr); 523255332Scy printf("%u\twilds\n", nsp->ns_wilds); 524255332Scy if (opts & OPT_VERBOSE) 525255332Scy printf("list %p\n", nsp->ns_list); 526255332Scy } 527255332Scy 528255332Scy if (opts & OPT_LIST) { 529255332Scy if (alive) 530255332Scy dostats_live(fd, nsp, opts, filter); 531255332Scy else 532255332Scy dostats_dead(nsp, opts, filter); 533255332Scy } 534255332Scy} 535255332Scy 536255332Scy 537170268Sdarrenr/* 538170268Sdarrenr * Display NAT statistics. 539170268Sdarrenr */ 540255332Scyvoid dostats_live(fd, nsp, opts, filter) 541255332Scy natstat_t *nsp; 542255332Scy int fd, opts, *filter; 543170268Sdarrenr{ 544170268Sdarrenr ipfgeniter_t iter; 545255332Scy char buffer[2000]; 546170268Sdarrenr ipfobj_t obj; 547255332Scy ipnat_t *ipn; 548170268Sdarrenr nat_t nat; 549255332Scy int i; 550170268Sdarrenr 551170268Sdarrenr bzero((char *)&obj, sizeof(obj)); 552170268Sdarrenr obj.ipfo_rev = IPFILTER_VERSION; 553170268Sdarrenr obj.ipfo_type = IPFOBJ_GENITER; 554170268Sdarrenr obj.ipfo_size = sizeof(iter); 555170268Sdarrenr obj.ipfo_ptr = &iter; 556170268Sdarrenr 557170268Sdarrenr iter.igi_type = IPFGENITER_IPNAT; 558170268Sdarrenr iter.igi_nitems = 1; 559255332Scy iter.igi_data = buffer; 560255332Scy ipn = (ipnat_t *)buffer; 561170268Sdarrenr 562145510Sdarrenr /* 563145510Sdarrenr * Show list of NAT rules and NAT sessions ? 564145510Sdarrenr */ 565255332Scy if (nat_fields == NULL) { 566255332Scy printf("List of active MAP/Redirect filters:\n"); 567255332Scy while (nsp->ns_list) { 568255332Scy if (ioctl(fd, SIOCGENITER, &obj) == -1) 569255332Scy break; 570255332Scy if (opts & OPT_HITS) 571255332Scy printf("%lu ", ipn->in_hits); 572255332Scy printnat(ipn, opts & (OPT_DEBUG|OPT_VERBOSE)); 573255332Scy nsp->ns_list = ipn->in_next; 574255332Scy } 575170268Sdarrenr } 576145510Sdarrenr 577255332Scy if (nat_fields == NULL) { 578255332Scy printf("\nList of active sessions:\n"); 579145510Sdarrenr 580255332Scy } else if (nohdrfields == 0) { 581255332Scy for (i = 0; nat_fields[i].w_value != 0; i++) { 582255332Scy printfieldhdr(natfields, nat_fields + i); 583255332Scy if (nat_fields[i + 1].w_value != 0) 584255332Scy printf("\t"); 585255332Scy } 586255332Scy printf("\n"); 587255332Scy } 588255332Scy 589255332Scy i = IPFGENITER_IPNAT; 590255332Scy (void) ioctl(fd,SIOCIPFDELTOK, &i); 591255332Scy 592255332Scy 593170268Sdarrenr iter.igi_type = IPFGENITER_NAT; 594170268Sdarrenr iter.igi_nitems = 1; 595170268Sdarrenr iter.igi_data = &nat; 596145510Sdarrenr 597170268Sdarrenr while (nsp->ns_instances != NULL) { 598170268Sdarrenr if (ioctl(fd, SIOCGENITER, &obj) == -1) 599170268Sdarrenr break; 600255332Scy if ((filter != NULL) && (nat_matcharray(&nat, filter) == 0)) 601255332Scy continue; 602255332Scy if (nat_fields != NULL) { 603255332Scy for (i = 0; nat_fields[i].w_value != 0; i++) { 604255332Scy printnatfield(&nat, nat_fields[i].w_value); 605255332Scy if (nat_fields[i + 1].w_value != 0) 606255332Scy printf("\t"); 607255332Scy } 608255332Scy printf("\n"); 609255332Scy } else { 610255332Scy printactivenat(&nat, opts, nsp->ns_ticks); 611255332Scy if (nat.nat_aps) { 612255332Scy int proto; 613255332Scy 614255332Scy if (nat.nat_dir & NAT_OUTBOUND) 615255332Scy proto = nat.nat_pr[1]; 616255332Scy else 617255332Scy proto = nat.nat_pr[0]; 618255332Scy printaps(nat.nat_aps, opts, proto); 619255332Scy } 620255332Scy } 621170268Sdarrenr nsp->ns_instances = nat.nat_next; 622145510Sdarrenr } 623170268Sdarrenr 624170268Sdarrenr if (opts & OPT_VERBOSE) 625170268Sdarrenr showhostmap_live(fd, nsp); 626255332Scy 627255332Scy i = IPFGENITER_NAT; 628255332Scy (void) ioctl(fd,SIOCIPFDELTOK, &i); 629145510Sdarrenr} 630145510Sdarrenr 631145510Sdarrenr 632145510Sdarrenr/* 633145510Sdarrenr * Display the active host mapping table. 634145510Sdarrenr */ 635170268Sdarrenrvoid showhostmap_dead(nsp) 636255332Scy natstat_t *nsp; 637145510Sdarrenr{ 638145510Sdarrenr hostmap_t hm, *hmp, **maptable; 639145510Sdarrenr u_int hv; 640145510Sdarrenr 641145510Sdarrenr printf("\nList of active host mappings:\n"); 642145510Sdarrenr 643145510Sdarrenr maptable = (hostmap_t **)malloc(sizeof(hostmap_t *) * 644145510Sdarrenr nsp->ns_hostmap_sz); 645145510Sdarrenr if (kmemcpy((char *)maptable, (u_long)nsp->ns_maptable, 646145510Sdarrenr sizeof(hostmap_t *) * nsp->ns_hostmap_sz)) { 647145510Sdarrenr perror("kmemcpy (maptable)"); 648145510Sdarrenr return; 649145510Sdarrenr } 650145510Sdarrenr 651145510Sdarrenr for (hv = 0; hv < nsp->ns_hostmap_sz; hv++) { 652145510Sdarrenr hmp = maptable[hv]; 653145510Sdarrenr 654145510Sdarrenr while (hmp) { 655145510Sdarrenr if (kmemcpy((char *)&hm, (u_long)hmp, sizeof(hm))) { 656145510Sdarrenr perror("kmemcpy (hostmap)"); 657145510Sdarrenr return; 658145510Sdarrenr } 659145510Sdarrenr 660145510Sdarrenr printhostmap(&hm, hv); 661145510Sdarrenr hmp = hm.hm_next; 662145510Sdarrenr } 663145510Sdarrenr } 664145510Sdarrenr free(maptable); 665145510Sdarrenr} 666145510Sdarrenr 667145510Sdarrenr 668145510Sdarrenr/* 669170268Sdarrenr * Display the active host mapping table. 670145510Sdarrenr */ 671170268Sdarrenrvoid showhostmap_live(fd, nsp) 672255332Scy int fd; 673255332Scy natstat_t *nsp; 674145510Sdarrenr{ 675170268Sdarrenr ipfgeniter_t iter; 676170268Sdarrenr hostmap_t hm; 677170268Sdarrenr ipfobj_t obj; 678255332Scy int i; 679145510Sdarrenr 680170268Sdarrenr bzero((char *)&obj, sizeof(obj)); 681170268Sdarrenr obj.ipfo_rev = IPFILTER_VERSION; 682170268Sdarrenr obj.ipfo_type = IPFOBJ_GENITER; 683170268Sdarrenr obj.ipfo_size = sizeof(iter); 684170268Sdarrenr obj.ipfo_ptr = &iter; 685170268Sdarrenr 686170268Sdarrenr iter.igi_type = IPFGENITER_HOSTMAP; 687170268Sdarrenr iter.igi_nitems = 1; 688170268Sdarrenr iter.igi_data = &hm; 689170268Sdarrenr 690170268Sdarrenr printf("\nList of active host mappings:\n"); 691170268Sdarrenr 692170268Sdarrenr while (nsp->ns_maplist != NULL) { 693170268Sdarrenr if (ioctl(fd, SIOCGENITER, &obj) == -1) 694170268Sdarrenr break; 695255332Scy printhostmap(&hm, hm.hm_hv); 696170268Sdarrenr nsp->ns_maplist = hm.hm_next; 697145510Sdarrenr } 698255332Scy 699255332Scy i = IPFGENITER_HOSTMAP; 700255332Scy (void) ioctl(fd,SIOCIPFDELTOK, &i); 701170268Sdarrenr} 702145510Sdarrenr 703170268Sdarrenr 704255332Scyint nat_matcharray(nat, array) 705255332Scy nat_t *nat; 706255332Scy int *array; 707170268Sdarrenr{ 708255332Scy int i, n, *x, rv, p; 709255332Scy ipfexp_t *e; 710170268Sdarrenr 711255332Scy rv = 0; 712255332Scy n = array[0]; 713255332Scy x = array + 1; 714170268Sdarrenr 715255332Scy for (; n > 0; x += 3 + x[3], rv = 0) { 716255332Scy e = (ipfexp_t *)x; 717255332Scy if (e->ipfe_cmd == IPF_EXP_END) 718255332Scy break; 719255332Scy n -= e->ipfe_size; 720255332Scy 721255332Scy p = e->ipfe_cmd >> 16; 722255332Scy if ((p != 0) && (p != nat->nat_pr[1])) 723255332Scy break; 724255332Scy 725255332Scy switch (e->ipfe_cmd) 726255332Scy { 727255332Scy case IPF_EXP_IP_PR : 728255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 729255332Scy rv |= (nat->nat_pr[1] == e->ipfe_arg0[i]); 730255332Scy } 731255332Scy break; 732255332Scy 733255332Scy case IPF_EXP_IP_SRCADDR : 734255332Scy if (nat->nat_v[0] != 4) 735255332Scy break; 736255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 737255332Scy rv |= ((nat->nat_osrcaddr & 738255332Scy e->ipfe_arg0[i * 2 + 1]) == 739255332Scy e->ipfe_arg0[i * 2]) || 740255332Scy ((nat->nat_nsrcaddr & 741255332Scy e->ipfe_arg0[i * 2 + 1]) == 742255332Scy e->ipfe_arg0[i * 2]); 743255332Scy } 744255332Scy break; 745255332Scy 746255332Scy case IPF_EXP_IP_DSTADDR : 747255332Scy if (nat->nat_v[0] != 4) 748255332Scy break; 749255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 750255332Scy rv |= ((nat->nat_odstaddr & 751255332Scy e->ipfe_arg0[i * 2 + 1]) == 752255332Scy e->ipfe_arg0[i * 2]) || 753255332Scy ((nat->nat_ndstaddr & 754255332Scy e->ipfe_arg0[i * 2 + 1]) == 755255332Scy e->ipfe_arg0[i * 2]); 756255332Scy } 757255332Scy break; 758255332Scy 759255332Scy case IPF_EXP_IP_ADDR : 760255332Scy if (nat->nat_v[0] != 4) 761255332Scy break; 762255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 763255332Scy rv |= ((nat->nat_osrcaddr & 764255332Scy e->ipfe_arg0[i * 2 + 1]) == 765255332Scy e->ipfe_arg0[i * 2]) || 766255332Scy ((nat->nat_nsrcaddr & 767255332Scy e->ipfe_arg0[i * 2 + 1]) == 768255332Scy e->ipfe_arg0[i * 2]) || 769255332Scy ((nat->nat_odstaddr & 770255332Scy e->ipfe_arg0[i * 2 + 1]) == 771255332Scy e->ipfe_arg0[i * 2]) || 772255332Scy ((nat->nat_ndstaddr & 773255332Scy e->ipfe_arg0[i * 2 + 1]) == 774255332Scy e->ipfe_arg0[i * 2]); 775255332Scy } 776255332Scy break; 777255332Scy 778255332Scy#ifdef USE_INET6 779255332Scy case IPF_EXP_IP6_SRCADDR : 780255332Scy if (nat->nat_v[0] != 6) 781255332Scy break; 782255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 783255332Scy rv |= IP6_MASKEQ(&nat->nat_osrc6, 784255332Scy &e->ipfe_arg0[i * 8 + 4], 785255332Scy &e->ipfe_arg0[i * 8]) || 786255332Scy IP6_MASKEQ(&nat->nat_nsrc6, 787255332Scy &e->ipfe_arg0[i * 8 + 4], 788255332Scy &e->ipfe_arg0[i * 8]); 789255332Scy } 790255332Scy break; 791255332Scy 792255332Scy case IPF_EXP_IP6_DSTADDR : 793255332Scy if (nat->nat_v[0] != 6) 794255332Scy break; 795255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 796255332Scy rv |= IP6_MASKEQ(&nat->nat_odst6, 797255332Scy &e->ipfe_arg0[i * 8 + 4], 798255332Scy &e->ipfe_arg0[i * 8]) || 799255332Scy IP6_MASKEQ(&nat->nat_ndst6, 800255332Scy &e->ipfe_arg0[i * 8 + 4], 801255332Scy &e->ipfe_arg0[i * 8]); 802255332Scy } 803255332Scy break; 804255332Scy 805255332Scy case IPF_EXP_IP6_ADDR : 806255332Scy if (nat->nat_v[0] != 6) 807255332Scy break; 808255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 809255332Scy rv |= IP6_MASKEQ(&nat->nat_osrc6, 810255332Scy &e->ipfe_arg0[i * 8 + 4], 811255332Scy &e->ipfe_arg0[i * 8]) || 812255332Scy IP6_MASKEQ(&nat->nat_nsrc6, 813255332Scy &e->ipfe_arg0[i * 8 + 4], 814255332Scy &e->ipfe_arg0[i * 8]) || 815255332Scy IP6_MASKEQ(&nat->nat_odst6, 816255332Scy &e->ipfe_arg0[i * 8 + 4], 817255332Scy &e->ipfe_arg0[i * 8]) || 818255332Scy IP6_MASKEQ(&nat->nat_ndst6, 819255332Scy &e->ipfe_arg0[i * 8 + 4], 820255332Scy &e->ipfe_arg0[i * 8]); 821255332Scy } 822255332Scy break; 823255332Scy#endif 824255332Scy 825255332Scy case IPF_EXP_UDP_PORT : 826255332Scy case IPF_EXP_TCP_PORT : 827255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 828255332Scy rv |= (nat->nat_osport == e->ipfe_arg0[i]) || 829255332Scy (nat->nat_nsport == e->ipfe_arg0[i]) || 830255332Scy (nat->nat_odport == e->ipfe_arg0[i]) || 831255332Scy (nat->nat_ndport == e->ipfe_arg0[i]); 832255332Scy } 833255332Scy break; 834255332Scy 835255332Scy case IPF_EXP_UDP_SPORT : 836255332Scy case IPF_EXP_TCP_SPORT : 837255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 838255332Scy rv |= (nat->nat_osport == e->ipfe_arg0[i]) || 839255332Scy (nat->nat_nsport == e->ipfe_arg0[i]); 840255332Scy } 841255332Scy break; 842255332Scy 843255332Scy case IPF_EXP_UDP_DPORT : 844255332Scy case IPF_EXP_TCP_DPORT : 845255332Scy for (i = 0; !rv && i < e->ipfe_narg; i++) { 846255332Scy rv |= (nat->nat_odport == e->ipfe_arg0[i]) || 847255332Scy (nat->nat_ndport == e->ipfe_arg0[i]); 848255332Scy } 849255332Scy break; 850255332Scy } 851255332Scy rv ^= e->ipfe_not; 852255332Scy 853255332Scy if (rv == 0) 854255332Scy break; 855145510Sdarrenr } 856255332Scy 857255332Scy return rv; 858145510Sdarrenr} 859