ipfw2.c revision 223262
198943Sluigi/* 2117328Sluigi * Copyright (c) 2002-2003 Luigi Rizzo 398943Sluigi * Copyright (c) 1996 Alex Nash, Paul Traina, Poul-Henning Kamp 498943Sluigi * Copyright (c) 1994 Ugen J.S.Antsilevich 598943Sluigi * 698943Sluigi * Idea and grammar partially left from: 798943Sluigi * Copyright (c) 1993 Daniel Boulet 898943Sluigi * 998943Sluigi * Redistribution and use in source forms, with and without modification, 1098943Sluigi * are permitted provided that this entire comment appears intact. 1198943Sluigi * 1298943Sluigi * Redistribution in binary form may occur without any restrictions. 1398943Sluigi * Obviously, it would be nice if you gave credit where credit is due 1498943Sluigi * but requiring it would be too onerous. 1598943Sluigi * 1698943Sluigi * This software is provided ``AS IS'' without any warranties of any kind. 1798943Sluigi * 1898943Sluigi * NEW command line interface for IP firewall facility 1998943Sluigi * 2098943Sluigi * $FreeBSD: head/sbin/ipfw/ipfw2.c 223262 2011-06-18 13:56:33Z benl $ 2198943Sluigi */ 2298943Sluigi 23187604Sluigi#include <sys/types.h> 24223262Sbenl#include <sys/param.h> 2598943Sluigi#include <sys/socket.h> 2698943Sluigi#include <sys/sockio.h> 2798943Sluigi#include <sys/sysctl.h> 2898943Sluigi 29187767Sluigi#include "ipfw2.h" 30187767Sluigi 3198943Sluigi#include <ctype.h> 3298943Sluigi#include <err.h> 3398943Sluigi#include <errno.h> 3498943Sluigi#include <grp.h> 3598943Sluigi#include <netdb.h> 3698943Sluigi#include <pwd.h> 3798943Sluigi#include <stdio.h> 3898943Sluigi#include <stdlib.h> 3998943Sluigi#include <string.h> 4098943Sluigi#include <sysexits.h> 41187983Sluigi#include <time.h> /* ctime */ 42187604Sluigi#include <timeconv.h> /* _long_to_time */ 43136071Sgreen#include <unistd.h> 44136071Sgreen#include <fcntl.h> 4598943Sluigi 46169424Smaxim#include <net/ethernet.h> 47187983Sluigi#include <net/if.h> /* only IFNAMSIZ */ 4898943Sluigi#include <netinet/in.h> 49187983Sluigi#include <netinet/in_systm.h> /* only n_short, n_long */ 5098943Sluigi#include <netinet/ip.h> 5198943Sluigi#include <netinet/ip_icmp.h> 5298943Sluigi#include <netinet/ip_fw.h> 5398943Sluigi#include <netinet/tcp.h> 5498943Sluigi#include <arpa/inet.h> 5598943Sluigi 56187767Sluigistruct cmdline_opts co; /* global options */ 5798943Sluigi 58187767Sluigiint resvd_set_number = RESVD_SET; 59187764Sluigi 60159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 61204591Sluigi if (!av[0]) \ 62159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 63159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 64159636Soleg arg = IP_FW_TABLEARG; \ 65159636Soleg break; \ 66159636Soleg } \ 67159636Soleg \ 68159636Soleg { \ 69204591Sluigi long _xval; \ 70159636Soleg char *end; \ 71159636Soleg \ 72204591Sluigi _xval = strtol(*av, &end, 10); \ 73159636Soleg \ 74204591Sluigi if (!isdigit(**av) || *end != '\0' || (_xval == 0 && errno == EINVAL)) \ 75159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 76159636Soleg match_value(s_x, tok), *av); \ 77159636Soleg \ 78204591Sluigi if (errno == ERANGE || _xval < min || _xval > max) \ 79159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 80159636Soleg match_value(s_x, tok), min, max, *av); \ 81159636Soleg \ 82204591Sluigi if (_xval == IP_FW_TABLEARG) \ 83159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 84159636Soleg match_value(s_x, tok), *av); \ 85204591Sluigi arg = _xval; \ 86159636Soleg } \ 87158879Soleg} while (0) 88158879Soleg 89187762Sluigistatic void 90187762SluigiPRINT_UINT_ARG(const char *str, uint32_t arg) 91187762Sluigi{ 92187762Sluigi if (str != NULL) 93187762Sluigi printf("%s",str); 94187762Sluigi if (arg == IP_FW_TABLEARG) 95187762Sluigi printf("tablearg"); 96187762Sluigi else 97187762Sluigi printf("%u", arg); 98187762Sluigi} 99159636Soleg 10098943Sluigistatic struct _s_x f_tcpflags[] = { 10198943Sluigi { "syn", TH_SYN }, 10298943Sluigi { "fin", TH_FIN }, 10398943Sluigi { "ack", TH_ACK }, 10498943Sluigi { "psh", TH_PUSH }, 10598943Sluigi { "rst", TH_RST }, 10698943Sluigi { "urg", TH_URG }, 10798943Sluigi { "tcp flag", 0 }, 10898943Sluigi { NULL, 0 } 10998943Sluigi}; 11098943Sluigi 11198943Sluigistatic struct _s_x f_tcpopts[] = { 11298943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 11398943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 11498943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 11598943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 11698943Sluigi { "ts", IP_FW_TCPOPT_TS }, 11798943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 11898943Sluigi { "cc", IP_FW_TCPOPT_CC }, 11998943Sluigi { "tcp option", 0 }, 12098943Sluigi { NULL, 0 } 12198943Sluigi}; 12298943Sluigi 12398943Sluigi/* 12498943Sluigi * IP options span the range 0 to 255 so we need to remap them 12598943Sluigi * (though in fact only the low 5 bits are significant). 12698943Sluigi */ 12798943Sluigistatic struct _s_x f_ipopts[] = { 12898943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 12998943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 13098943Sluigi { "rr", IP_FW_IPOPT_RR}, 13198943Sluigi { "ts", IP_FW_IPOPT_TS}, 13298943Sluigi { "ip option", 0 }, 13398943Sluigi { NULL, 0 } 13498943Sluigi}; 13598943Sluigi 13698943Sluigistatic struct _s_x f_iptos[] = { 13798943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 13898943Sluigi { "throughput", IPTOS_THROUGHPUT}, 13998943Sluigi { "reliability", IPTOS_RELIABILITY}, 14098943Sluigi { "mincost", IPTOS_MINCOST}, 141172801Srpaulo { "congestion", IPTOS_ECN_CE}, 142172801Srpaulo { "ecntransport", IPTOS_ECN_ECT0}, 14398943Sluigi { "ip tos option", 0}, 14498943Sluigi { NULL, 0 } 14598943Sluigi}; 14698943Sluigi 14798943Sluigistatic struct _s_x limit_masks[] = { 14898943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 14998943Sluigi {"src-addr", DYN_SRC_ADDR}, 15098943Sluigi {"src-port", DYN_SRC_PORT}, 15198943Sluigi {"dst-addr", DYN_DST_ADDR}, 15298943Sluigi {"dst-port", DYN_DST_PORT}, 15398943Sluigi {NULL, 0} 15498943Sluigi}; 15598943Sluigi 15698943Sluigi/* 15798943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 15898943Sluigi * This is only used in this code. 15998943Sluigi */ 16098943Sluigi#define IPPROTO_ETHERTYPE 0x1000 16198943Sluigistatic struct _s_x ether_types[] = { 16298943Sluigi /* 16398943Sluigi * Note, we cannot use "-:&/" in the names because they are field 16498943Sluigi * separators in the type specifications. Also, we use s = NULL as 16598943Sluigi * end-delimiter, because a type of 0 can be legal. 16698943Sluigi */ 16798943Sluigi { "ip", 0x0800 }, 16898943Sluigi { "ipv4", 0x0800 }, 16998943Sluigi { "ipv6", 0x86dd }, 17098943Sluigi { "arp", 0x0806 }, 17198943Sluigi { "rarp", 0x8035 }, 17298943Sluigi { "vlan", 0x8100 }, 17398943Sluigi { "loop", 0x9000 }, 17498943Sluigi { "trail", 0x1000 }, 17598943Sluigi { "at", 0x809b }, 17698943Sluigi { "atalk", 0x809b }, 17798943Sluigi { "aarp", 0x80f3 }, 17898943Sluigi { "pppoe_disc", 0x8863 }, 17998943Sluigi { "pppoe_sess", 0x8864 }, 18098943Sluigi { "ipx_8022", 0x00E0 }, 18198943Sluigi { "ipx_8023", 0x0000 }, 18298943Sluigi { "ipx_ii", 0x8137 }, 18398943Sluigi { "ipx_snap", 0x8137 }, 18498943Sluigi { "ipx", 0x8137 }, 18598943Sluigi { "ns", 0x0600 }, 18698943Sluigi { NULL, 0 } 18798943Sluigi}; 18898943Sluigi 18998943Sluigi 190187769Sluigistatic struct _s_x rule_actions[] = { 19198943Sluigi { "accept", TOK_ACCEPT }, 19298943Sluigi { "pass", TOK_ACCEPT }, 19398943Sluigi { "allow", TOK_ACCEPT }, 19498943Sluigi { "permit", TOK_ACCEPT }, 19598943Sluigi { "count", TOK_COUNT }, 19698943Sluigi { "pipe", TOK_PIPE }, 19798943Sluigi { "queue", TOK_QUEUE }, 19898943Sluigi { "divert", TOK_DIVERT }, 19998943Sluigi { "tee", TOK_TEE }, 200141351Sglebius { "netgraph", TOK_NETGRAPH }, 201141351Sglebius { "ngtee", TOK_NGTEE }, 20298943Sluigi { "fwd", TOK_FORWARD }, 20398943Sluigi { "forward", TOK_FORWARD }, 20498943Sluigi { "skipto", TOK_SKIPTO }, 20598943Sluigi { "deny", TOK_DENY }, 20698943Sluigi { "drop", TOK_DENY }, 20798943Sluigi { "reject", TOK_REJECT }, 208149020Sbz { "reset6", TOK_RESET6 }, 20998943Sluigi { "reset", TOK_RESET }, 210149020Sbz { "unreach6", TOK_UNREACH6 }, 21199475Sluigi { "unreach", TOK_UNREACH }, 21298943Sluigi { "check-state", TOK_CHECKSTATE }, 213117469Sluigi { "//", TOK_COMMENT }, 214220802Sglebius { "nat", TOK_NAT }, 215190633Spiso { "reass", TOK_REASS }, 216178888Sjulian { "setfib", TOK_SETFIB }, 217117328Sluigi { NULL, 0 } /* terminator */ 21898943Sluigi}; 21998943Sluigi 220187769Sluigistatic struct _s_x rule_action_params[] = { 221136071Sgreen { "altq", TOK_ALTQ }, 222136071Sgreen { "log", TOK_LOG }, 223158879Soleg { "tag", TOK_TAG }, 224158879Soleg { "untag", TOK_UNTAG }, 225136071Sgreen { NULL, 0 } /* terminator */ 226136071Sgreen}; 227136071Sgreen 228200567Sluigi/* 229200567Sluigi * The 'lookup' instruction accepts one of the following arguments. 230200567Sluigi * -1 is a terminator for the list. 231200567Sluigi * Arguments are passed as v[1] in O_DST_LOOKUP options. 232200567Sluigi */ 233200567Sluigistatic int lookup_key[] = { 234200567Sluigi TOK_DSTIP, TOK_SRCIP, TOK_DSTPORT, TOK_SRCPORT, 235205169Sluigi TOK_UID, TOK_JAIL, TOK_DSCP, -1 }; 236200567Sluigi 237187769Sluigistatic struct _s_x rule_options[] = { 238158879Soleg { "tagged", TOK_TAGGED }, 23998943Sluigi { "uid", TOK_UID }, 24098943Sluigi { "gid", TOK_GID }, 241133600Scsjp { "jail", TOK_JAIL }, 24298943Sluigi { "in", TOK_IN }, 24398943Sluigi { "limit", TOK_LIMIT }, 24498943Sluigi { "keep-state", TOK_KEEPSTATE }, 24598943Sluigi { "bridged", TOK_LAYER2 }, 24698943Sluigi { "layer2", TOK_LAYER2 }, 24798943Sluigi { "out", TOK_OUT }, 248136073Sgreen { "diverted", TOK_DIVERTED }, 249136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 250136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 25198943Sluigi { "xmit", TOK_XMIT }, 25298943Sluigi { "recv", TOK_RECV }, 25398943Sluigi { "via", TOK_VIA }, 25498943Sluigi { "fragment", TOK_FRAG }, 25598943Sluigi { "frag", TOK_FRAG }, 256178888Sjulian { "fib", TOK_FIB }, 25798943Sluigi { "ipoptions", TOK_IPOPTS }, 25898943Sluigi { "ipopts", TOK_IPOPTS }, 25998943Sluigi { "iplen", TOK_IPLEN }, 26098943Sluigi { "ipid", TOK_IPID }, 26198943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 262205169Sluigi { "dscp", TOK_DSCP }, 26398943Sluigi { "iptos", TOK_IPTOS }, 26498943Sluigi { "ipttl", TOK_IPTTL }, 26598943Sluigi { "ipversion", TOK_IPVER }, 26698943Sluigi { "ipver", TOK_IPVER }, 26798943Sluigi { "estab", TOK_ESTAB }, 26898943Sluigi { "established", TOK_ESTAB }, 26998943Sluigi { "setup", TOK_SETUP }, 270215179Sluigi { "sockarg", TOK_SOCKARG }, 271136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 27298943Sluigi { "tcpflags", TOK_TCPFLAGS }, 27398943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 27498943Sluigi { "tcpoptions", TOK_TCPOPTS }, 27598943Sluigi { "tcpopts", TOK_TCPOPTS }, 27698943Sluigi { "tcpseq", TOK_TCPSEQ }, 27798943Sluigi { "tcpack", TOK_TCPACK }, 27898943Sluigi { "tcpwin", TOK_TCPWIN }, 27999909Sluigi { "icmptype", TOK_ICMPTYPES }, 28098943Sluigi { "icmptypes", TOK_ICMPTYPES }, 281102087Sluigi { "dst-ip", TOK_DSTIP }, 282102087Sluigi { "src-ip", TOK_SRCIP }, 283102087Sluigi { "dst-port", TOK_DSTPORT }, 284102087Sluigi { "src-port", TOK_SRCPORT }, 285102087Sluigi { "proto", TOK_PROTO }, 286102087Sluigi { "MAC", TOK_MAC }, 287102087Sluigi { "mac", TOK_MAC }, 288102087Sluigi { "mac-type", TOK_MACTYPE }, 289112250Scjc { "verrevpath", TOK_VERREVPATH }, 290128575Sandre { "versrcreach", TOK_VERSRCREACH }, 291133387Sandre { "antispoof", TOK_ANTISPOOF }, 292117241Sluigi { "ipsec", TOK_IPSEC }, 293145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 294145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 295145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 296145246Sbrooks { "flow-id", TOK_FLOWID}, 297145246Sbrooks { "ipv6", TOK_IPV6}, 298145246Sbrooks { "ip6", TOK_IPV6}, 299146894Smlaier { "ipv4", TOK_IPV4}, 300146894Smlaier { "ip4", TOK_IPV4}, 301145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 302145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 303145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 304145246Sbrooks { "src-ip6", TOK_SRCIP6}, 305200567Sluigi { "lookup", TOK_LOOKUP}, 306117469Sluigi { "//", TOK_COMMENT }, 30798943Sluigi 30898943Sluigi { "not", TOK_NOT }, /* pseudo option */ 30998943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 31098943Sluigi { "or", TOK_OR }, /* pseudo option */ 31198943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 312101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 313101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 314101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 315101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 316117328Sluigi { NULL, 0 } /* terminator */ 31798943Sluigi}; 31898943Sluigi 319206843Sluigi/* 320206843Sluigi * Helper routine to print a possibly unaligned uint64_t on 321206843Sluigi * various platform. If width > 0, print the value with 322206843Sluigi * the desired width, followed by a space; 323206843Sluigi * otherwise, return the required width. 324187787Sluigi */ 325206843Sluigiint 326206843Sluigipr_u64(uint64_t *pd, int width) 327187787Sluigi{ 328206843Sluigi#ifdef TCC 329206843Sluigi#define U64_FMT "I64" 330206843Sluigi#else 331206843Sluigi#define U64_FMT "llu" 332206843Sluigi#endif 333206846Sluigi uint64_t u; 334206846Sluigi unsigned long long d; 335115793Sticso 336206846Sluigi bcopy (pd, &u, sizeof(u)); 337206846Sluigi d = u; 338206843Sluigi return (width > 0) ? 339206843Sluigi printf("%*" U64_FMT " ", width, d) : 340206843Sluigi snprintf(NULL, 0, "%" U64_FMT, d) ; 341206843Sluigi#undef U64_FMT 342129389Sstefanf} 343115793Sticso 344187767Sluigivoid * 345187716Sluigisafe_calloc(size_t number, size_t size) 346187716Sluigi{ 347187716Sluigi void *ret = calloc(number, size); 348187716Sluigi 349187716Sluigi if (ret == NULL) 350187716Sluigi err(EX_OSERR, "calloc"); 351187716Sluigi return ret; 352187716Sluigi} 353187716Sluigi 354187767Sluigivoid * 355187716Sluigisafe_realloc(void *ptr, size_t size) 356187716Sluigi{ 357187716Sluigi void *ret = realloc(ptr, size); 358187716Sluigi 359187716Sluigi if (ret == NULL) 360187716Sluigi err(EX_OSERR, "realloc"); 361187716Sluigi return ret; 362187716Sluigi} 363187716Sluigi 364117328Sluigi/* 365117328Sluigi * conditionally runs the command. 366204591Sluigi * Selected options or negative -> getsockopt 367117328Sluigi */ 368187769Sluigiint 369119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 370117328Sluigi{ 371117328Sluigi static int s = -1; /* the socket */ 372117328Sluigi int i; 373117577Sluigi 374187764Sluigi if (co.test_only) 375117328Sluigi return 0; 376117328Sluigi 377117328Sluigi if (s == -1) 378117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 379117328Sluigi if (s < 0) 380117328Sluigi err(EX_UNAVAILABLE, "socket"); 381117328Sluigi 382117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 383130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 384220802Sglebius optname == IP_FW_TABLE_GETSIZE || 385220802Sglebius optname == IP_FW_NAT_GET_CONFIG || 386204591Sluigi optname < 0 || 387204591Sluigi optname == IP_FW_NAT_GET_LOG) { 388204591Sluigi if (optname < 0) 389204591Sluigi optname = -optname; 390117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 391117328Sluigi (socklen_t *)optlen); 392204591Sluigi } else { 393117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 394204591Sluigi } 395117328Sluigi return i; 396117328Sluigi} 397117328Sluigi 39898943Sluigi/** 39998943Sluigi * match_token takes a table and a string, returns the value associated 400117328Sluigi * with the string (-1 in case of failure). 40198943Sluigi */ 402187769Sluigiint 40398943Sluigimatch_token(struct _s_x *table, char *string) 40498943Sluigi{ 40598943Sluigi struct _s_x *pt; 406117469Sluigi uint i = strlen(string); 40798943Sluigi 40898943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 40998943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 41098943Sluigi return pt->x; 41198943Sluigi return -1; 412129389Sstefanf} 41398943Sluigi 414117328Sluigi/** 415117328Sluigi * match_value takes a table and a value, returns the string associated 416117328Sluigi * with the value (NULL in case of failure). 417117328Sluigi */ 418187770Sluigichar const * 419117469Sluigimatch_value(struct _s_x *p, int value) 42098943Sluigi{ 42198943Sluigi for (; p->s != NULL; p++) 42298943Sluigi if (p->x == value) 42398943Sluigi return p->s; 42498943Sluigi return NULL; 42598943Sluigi} 42698943Sluigi 42798943Sluigi/* 428140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 429140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 430140271Sbrooks * of the second. A warning is printed to stderr in the case that the 431140271Sbrooks * first string is a sub-string of the second. 432140271Sbrooks * 433140271Sbrooks * This function will be removed in the future through the usual 434140271Sbrooks * deprecation process. 435140271Sbrooks */ 436187767Sluigiint 437140271Sbrooks_substrcmp(const char *str1, const char* str2) 438140271Sbrooks{ 439220804Sglebius 440140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 441140271Sbrooks return 1; 442140271Sbrooks 443140271Sbrooks if (strlen(str1) != strlen(str2)) 444140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 445140271Sbrooks str1, str2); 446140271Sbrooks return 0; 447140271Sbrooks} 448140271Sbrooks 449140271Sbrooks/* 450140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 451140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 452140271Sbrooks * of the first. A warning is printed to stderr in the case that the 453140271Sbrooks * first string does not match the third. 454140271Sbrooks * 455140271Sbrooks * This function exists to warn about the bizzare construction 456140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 457140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 458140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 459140271Sbrooks * other string beginning with "by". 460140271Sbrooks * 461140271Sbrooks * This function will be removed in the future through the usual 462140271Sbrooks * deprecation process. 463140271Sbrooks */ 464187769Sluigiint 465140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 466140271Sbrooks{ 467220804Sglebius 468140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 469140271Sbrooks return 1; 470140271Sbrooks 471140271Sbrooks if (strcmp(str1, str3) != 0) 472140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 473140271Sbrooks str1, str3); 474140271Sbrooks return 0; 475140271Sbrooks} 476140271Sbrooks 477140271Sbrooks/* 47898943Sluigi * prints one port, symbolic or numeric 47998943Sluigi */ 48098943Sluigistatic void 481117328Sluigiprint_port(int proto, uint16_t port) 48298943Sluigi{ 48398943Sluigi 48498943Sluigi if (proto == IPPROTO_ETHERTYPE) { 485117469Sluigi char const *s; 48698943Sluigi 487187764Sluigi if (co.do_resolv && (s = match_value(ether_types, port)) ) 48898943Sluigi printf("%s", s); 48998943Sluigi else 49098943Sluigi printf("0x%04x", port); 49198943Sluigi } else { 49298943Sluigi struct servent *se = NULL; 493187764Sluigi if (co.do_resolv) { 49498943Sluigi struct protoent *pe = getprotobynumber(proto); 49598943Sluigi 49698943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 49798943Sluigi } 49898943Sluigi if (se) 49998943Sluigi printf("%s", se->s_name); 50098943Sluigi else 50198943Sluigi printf("%d", port); 50298943Sluigi } 50398943Sluigi} 50498943Sluigi 505187769Sluigistatic struct _s_x _port_name[] = { 506117328Sluigi {"dst-port", O_IP_DSTPORT}, 507117328Sluigi {"src-port", O_IP_SRCPORT}, 508117328Sluigi {"ipid", O_IPID}, 509117328Sluigi {"iplen", O_IPLEN}, 510117328Sluigi {"ipttl", O_IPTTL}, 511117328Sluigi {"mac-type", O_MAC_TYPE}, 512136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 513158879Soleg {"tagged", O_TAGGED}, 514117328Sluigi {NULL, 0} 515117328Sluigi}; 516117328Sluigi 51798943Sluigi/* 518117328Sluigi * Print the values in a list 16-bit items of the types above. 51998943Sluigi * XXX todo: add support for mask. 52098943Sluigi */ 52198943Sluigistatic void 522102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 52398943Sluigi{ 524117328Sluigi uint16_t *p = cmd->ports; 52598943Sluigi int i; 526117469Sluigi char const *sep; 52798943Sluigi 528116690Sluigi if (opcode != 0) { 529117328Sluigi sep = match_value(_port_name, opcode); 530117328Sluigi if (sep == NULL) 531116690Sluigi sep = "???"; 532116690Sluigi printf (" %s", sep); 533116690Sluigi } 534116690Sluigi sep = " "; 53598943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 536193702Sluigi printf("%s", sep); 53798943Sluigi print_port(proto, p[0]); 53898943Sluigi if (p[0] != p[1]) { 53998943Sluigi printf("-"); 54098943Sluigi print_port(proto, p[1]); 54198943Sluigi } 54298943Sluigi sep = ","; 54398943Sluigi } 54498943Sluigi} 54598943Sluigi 54698943Sluigi/* 54798943Sluigi * Like strtol, but also translates service names into port numbers 54898943Sluigi * for some protocols. 54998943Sluigi * In particular: 55098943Sluigi * proto == -1 disables the protocol check; 55198943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 55298943Sluigi * proto == <some value in /etc/protocols> matches the values there. 553101628Sluigi * Returns *end == s in case the parameter is not found. 55498943Sluigi */ 55598943Sluigistatic int 55698943Sluigistrtoport(char *s, char **end, int base, int proto) 55798943Sluigi{ 558101628Sluigi char *p, *buf; 559101628Sluigi char *s1; 56098943Sluigi int i; 56198943Sluigi 562101628Sluigi *end = s; /* default - not found */ 563117577Sluigi if (*s == '\0') 564101628Sluigi return 0; /* not found */ 565106505Smaxim 56698943Sluigi if (isdigit(*s)) 56798943Sluigi return strtol(s, end, base); 56898943Sluigi 56998943Sluigi /* 570101628Sluigi * find separator. '\\' escapes the next char. 57198943Sluigi */ 572101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 573101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 574101628Sluigi s1++; 57598943Sluigi 576187716Sluigi buf = safe_calloc(s1 - s + 1, 1); 577101628Sluigi 578101628Sluigi /* 579101628Sluigi * copy into a buffer skipping backslashes 580101628Sluigi */ 581101628Sluigi for (p = s, i = 0; p != s1 ; p++) 582117577Sluigi if (*p != '\\') 583101628Sluigi buf[i++] = *p; 584101628Sluigi buf[i++] = '\0'; 585101628Sluigi 58698943Sluigi if (proto == IPPROTO_ETHERTYPE) { 587101628Sluigi i = match_token(ether_types, buf); 588101628Sluigi free(buf); 589101628Sluigi if (i != -1) { /* found */ 59098943Sluigi *end = s1; 59198943Sluigi return i; 59298943Sluigi } 59398943Sluigi } else { 59498943Sluigi struct protoent *pe = NULL; 59598943Sluigi struct servent *se; 59698943Sluigi 59798943Sluigi if (proto != 0) 59898943Sluigi pe = getprotobynumber(proto); 59998943Sluigi setservent(1); 600101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 601101628Sluigi free(buf); 60298943Sluigi if (se != NULL) { 60398943Sluigi *end = s1; 60498943Sluigi return ntohs(se->s_port); 60598943Sluigi } 60698943Sluigi } 607101628Sluigi return 0; /* not found */ 60898943Sluigi} 60998943Sluigi 61098943Sluigi/* 611117328Sluigi * Fill the body of the command with the list of port ranges. 61298943Sluigi */ 61398943Sluigistatic int 61498943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 61598943Sluigi{ 616117328Sluigi uint16_t a, b, *p = cmd->ports; 61798943Sluigi int i = 0; 618102087Sluigi char *s = av; 61998943Sluigi 620102087Sluigi while (*s) { 62198943Sluigi a = strtoport(av, &s, 0, proto); 622159636Soleg if (s == av) /* empty or invalid argument */ 623159636Soleg return (0); 624159636Soleg 625159636Soleg switch (*s) { 626159636Soleg case '-': /* a range */ 627159636Soleg av = s + 1; 62898943Sluigi b = strtoport(av, &s, 0, proto); 629159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 630159636Soleg if (s == av || (*s != ',' && *s != '\0')) 631159636Soleg return (0); 63298943Sluigi p[0] = a; 63398943Sluigi p[1] = b; 634159636Soleg break; 635159636Soleg case ',': /* comma separated list */ 636159636Soleg case '\0': 63798943Sluigi p[0] = p[1] = a; 638159636Soleg break; 639159636Soleg default: 640159636Soleg warnx("port list: invalid separator <%c> in <%s>", 641101978Sluigi *s, av); 642159636Soleg return (0); 643159636Soleg } 644159636Soleg 645102087Sluigi i++; 646102087Sluigi p += 2; 647159636Soleg av = s + 1; 64898943Sluigi } 64998943Sluigi if (i > 0) { 650159636Soleg if (i + 1 > F_LEN_MASK) 651102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 652159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 65398943Sluigi } 654159636Soleg return (i); 65598943Sluigi} 65698943Sluigi 65798943Sluigistatic struct _s_x icmpcodes[] = { 65898943Sluigi { "net", ICMP_UNREACH_NET }, 65998943Sluigi { "host", ICMP_UNREACH_HOST }, 66098943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 66198943Sluigi { "port", ICMP_UNREACH_PORT }, 66298943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 66398943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 66498943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 66598943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 66698943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 66798943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 66898943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 66998943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 67098943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 67198943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 67298943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 67398943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 67498943Sluigi { NULL, 0 } 67598943Sluigi}; 67698943Sluigi 67798943Sluigistatic void 67898943Sluigifill_reject_code(u_short *codep, char *str) 67998943Sluigi{ 68098943Sluigi int val; 68198943Sluigi char *s; 68298943Sluigi 68398943Sluigi val = strtoul(str, &s, 0); 68498943Sluigi if (s == str || *s != '\0' || val >= 0x100) 68598943Sluigi val = match_token(icmpcodes, str); 686102087Sluigi if (val < 0) 68798943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 68898943Sluigi *codep = val; 68998943Sluigi return; 69098943Sluigi} 69198943Sluigi 69298943Sluigistatic void 693117328Sluigiprint_reject_code(uint16_t code) 69498943Sluigi{ 695117469Sluigi char const *s = match_value(icmpcodes, code); 69698943Sluigi 69798943Sluigi if (s != NULL) 69899475Sluigi printf("unreach %s", s); 69998943Sluigi else 70099475Sluigi printf("unreach %u", code); 70198943Sluigi} 70298943Sluigi 70398943Sluigi/* 70498943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 70598943Sluigi * or -1 if the mask is not contiguous. 70698943Sluigi * XXX this needs a proper fix. 70798943Sluigi * This effectively works on masks in big-endian (network) format. 70898943Sluigi * when compiled on little endian architectures. 70998943Sluigi * 71098943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 71198943Sluigi * the first bit on the wire is bit 0 of the first byte. 71298943Sluigi * len is the max length in bits. 71398943Sluigi */ 714187770Sluigiint 715117577Sluigicontigmask(uint8_t *p, int len) 71698943Sluigi{ 71798943Sluigi int i, n; 718117577Sluigi 71998943Sluigi for (i=0; i<len ; i++) 72098943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 72198943Sluigi break; 72298943Sluigi for (n=i+1; n < len; n++) 72398943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 72498943Sluigi return -1; /* mask not contiguous */ 72598943Sluigi return i; 72698943Sluigi} 72798943Sluigi 72898943Sluigi/* 72998943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 73098943Sluigi * There is a specialized check for f_tcpflags. 73198943Sluigi */ 73298943Sluigistatic void 733117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 73498943Sluigi{ 735117469Sluigi char const *comma = ""; 73698943Sluigi int i; 737117577Sluigi uint8_t set = cmd->arg1 & 0xff; 738117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 73998943Sluigi 74098943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 74198943Sluigi printf(" setup"); 74298943Sluigi return; 74398943Sluigi } 74498943Sluigi 74598943Sluigi printf(" %s ", name); 74698943Sluigi for (i=0; list[i].x != 0; i++) { 74798943Sluigi if (set & list[i].x) { 74898943Sluigi set &= ~list[i].x; 74998943Sluigi printf("%s%s", comma, list[i].s); 75098943Sluigi comma = ","; 75198943Sluigi } 75298943Sluigi if (clear & list[i].x) { 75398943Sluigi clear &= ~list[i].x; 75498943Sluigi printf("%s!%s", comma, list[i].s); 75598943Sluigi comma = ","; 75698943Sluigi } 75798943Sluigi } 75898943Sluigi} 75998943Sluigi 76098943Sluigi/* 76198943Sluigi * Print the ip address contained in a command. 76298943Sluigi */ 76398943Sluigistatic void 764117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 76598943Sluigi{ 76698943Sluigi struct hostent *he = NULL; 767204591Sluigi uint32_t len = F_LEN((ipfw_insn *)cmd); 768117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 76998943Sluigi 770200567Sluigi if (cmd->o.opcode == O_IP_DST_LOOKUP && len > F_INSN_SIZE(ipfw_insn_u32)) { 771200567Sluigi uint32_t d = a[1]; 772200567Sluigi const char *arg = "<invalid>"; 773200567Sluigi 774200567Sluigi if (d < sizeof(lookup_key)/sizeof(lookup_key[0])) 775200567Sluigi arg = match_value(rule_options, lookup_key[d]); 776200567Sluigi printf("%s lookup %s %d", cmd->o.len & F_NOT ? " not": "", 777200567Sluigi arg, cmd->o.arg1); 778200567Sluigi return; 779200567Sluigi } 780102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 78198943Sluigi 78298943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 78398943Sluigi printf("me"); 78498943Sluigi return; 78598943Sluigi } 786130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 787130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 788130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 789130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 790130281Sru printf(",%u", *a); 791130281Sru printf(")"); 792130281Sru return; 793130281Sru } 79498943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 795117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 796116716Sluigi int i, j; 79798943Sluigi char comma = '{'; 79898943Sluigi 79998943Sluigi x = cmd->o.arg1 - 1; 80098943Sluigi x = htonl( ~x ); 80198943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 80298943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 803117577Sluigi contigmask((uint8_t *)&x, 32)); 80498943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 80598943Sluigi x &= 0xff; /* base */ 806116716Sluigi /* 807116716Sluigi * Print bits and ranges. 808116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 809116716Sluigi * If we have 3+ consecutive bits set, then print them as a 810116716Sluigi * range, otherwise only print the initial bit and rescan. 811116716Sluigi */ 81298943Sluigi for (i=0; i < cmd->o.arg1; i++) 813117328Sluigi if (map[i/32] & (1<<(i & 31))) { 814116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 815117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 816116716Sluigi break; 81798943Sluigi printf("%c%d", comma, i+x); 818116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 819116716Sluigi printf("-%d", j-1+x); 820116716Sluigi i = j-1; 821116716Sluigi } 82298943Sluigi comma = ','; 82398943Sluigi } 82498943Sluigi printf("}"); 82598943Sluigi return; 82698943Sluigi } 827117328Sluigi /* 828117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 829117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 830117328Sluigi * use that to count the number of entries. 831117328Sluigi */ 832117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 833117328Sluigi int mb = /* mask length */ 834117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 835117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 836187764Sluigi if (mb == 32 && co.do_resolv) 837117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 83898943Sluigi if (he != NULL) /* resolved to name */ 83998943Sluigi printf("%s", he->h_name); 84098943Sluigi else if (mb == 0) /* any */ 84198943Sluigi printf("any"); 84298943Sluigi else { /* numeric IP followed by some kind of mask */ 843117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 84498943Sluigi if (mb < 0) 845117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 84698943Sluigi else if (mb < 32) 84798943Sluigi printf("/%d", mb); 84898943Sluigi } 849117328Sluigi if (len > 1) 850117328Sluigi printf(","); 851117328Sluigi } 85298943Sluigi} 85398943Sluigi 85498943Sluigi/* 85598943Sluigi * prints a MAC address/mask pair 85698943Sluigi */ 85798943Sluigistatic void 858117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 85998943Sluigi{ 86098943Sluigi int l = contigmask(mask, 48); 86198943Sluigi 86298943Sluigi if (l == 0) 86398943Sluigi printf(" any"); 86498943Sluigi else { 86598943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 86698943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 86798943Sluigi if (l == -1) 86898943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 86998943Sluigi mask[0], mask[1], mask[2], 87098943Sluigi mask[3], mask[4], mask[5]); 87198943Sluigi else if (l < 48) 87298943Sluigi printf("/%d", l); 87398943Sluigi } 87498943Sluigi} 87598943Sluigi 87699475Sluigistatic void 87799475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 87899475Sluigi{ 879117328Sluigi uint8_t type; 88098943Sluigi 88199475Sluigi cmd->d[0] = 0; 88299475Sluigi while (*av) { 88399475Sluigi if (*av == ',') 88499475Sluigi av++; 88599475Sluigi 88699475Sluigi type = strtoul(av, &av, 0); 88799475Sluigi 88899475Sluigi if (*av != ',' && *av != '\0') 88999475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 89099475Sluigi 89199475Sluigi if (type > 31) 89299475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 89399475Sluigi 89499475Sluigi cmd->d[0] |= 1 << type; 89599475Sluigi } 89699475Sluigi cmd->o.opcode = O_ICMPTYPE; 89799475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 89899475Sluigi} 89999475Sluigi 90099475Sluigistatic void 90199475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 90299475Sluigi{ 90399475Sluigi int i; 90499475Sluigi char sep= ' '; 90599475Sluigi 90699475Sluigi printf(" icmptypes"); 90799475Sluigi for (i = 0; i < 32; i++) { 90899475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 90999475Sluigi continue; 91099475Sluigi printf("%c%d", sep, i); 91199475Sluigi sep = ','; 91299475Sluigi } 91399475Sluigi} 91499475Sluigi 91598943Sluigi/* 91698943Sluigi * show_ipfw() prints the body of an ipfw rule. 91798943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 91898943Sluigi * a helper function to produce these entries if not provided explicitly. 919102087Sluigi * The first argument is the list of fields we have, the second is 920102087Sluigi * the list of fields we want to be printed. 921101978Sluigi * 922102087Sluigi * Special cases if we have provided a MAC header: 923102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 924102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 925102087Sluigi * 926102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 92798943Sluigi */ 928101978Sluigi#define HAVE_PROTO 0x0001 929101978Sluigi#define HAVE_SRCIP 0x0002 930101978Sluigi#define HAVE_DSTIP 0x0004 931169139Smaxim#define HAVE_PROTO4 0x0008 932169139Smaxim#define HAVE_PROTO6 0x0010 933205179Sluigi#define HAVE_IP 0x0100 934102087Sluigi#define HAVE_OPTIONS 0x8000 93598943Sluigi 93698943Sluigistatic void 937187477Sluigishow_prerequisites(int *flags, int want, int cmd __unused) 93898943Sluigi{ 939187764Sluigi if (co.comment_only) 940123495Sluigi return; 941102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 942102087Sluigi *flags |= HAVE_OPTIONS; 943102087Sluigi 944102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 945187477Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) { 946146894Smlaier if ( (*flags & HAVE_PROTO4)) 947146894Smlaier printf(" ip4"); 948146894Smlaier else if ( (*flags & HAVE_PROTO6)) 949146894Smlaier printf(" ip6"); 950146894Smlaier else 951146894Smlaier printf(" ip"); 952187477Sluigi } 953102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 954102087Sluigi printf(" from any"); 955102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 956102087Sluigi printf(" to any"); 957102087Sluigi } 95898943Sluigi *flags |= want; 95998943Sluigi} 96098943Sluigi 96198943Sluigistatic void 962112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 96398943Sluigi{ 964107291Skeramida static int twidth = 0; 96598943Sluigi int l; 966158879Soleg ipfw_insn *cmd, *tagptr = NULL; 967187477Sluigi const char *comment = NULL; /* ptr to comment if we have one */ 96898943Sluigi int proto = 0; /* default */ 96998943Sluigi int flags = 0; /* prerequisites */ 97098943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 971136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 97298943Sluigi int or_block = 0; /* we are in an or block */ 973117328Sluigi uint32_t set_disable; 97498943Sluigi 975115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 976101628Sluigi 977101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 978187764Sluigi if (!co.show_sets) 979101628Sluigi return; 980101628Sluigi else 981101628Sluigi printf("# DISABLED "); 982101628Sluigi } 98398943Sluigi printf("%05u ", rule->rulenum); 98498943Sluigi 985206843Sluigi if (pcwidth > 0 || bcwidth > 0) { 986206843Sluigi pr_u64(&rule->pcnt, pcwidth); 987206843Sluigi pr_u64(&rule->bcnt, bcwidth); 988206843Sluigi } 98998943Sluigi 990187764Sluigi if (co.do_time == 2) 991117472Sluigi printf("%10u ", rule->timestamp); 992187764Sluigi else if (co.do_time == 1) { 993107291Skeramida char timestr[30]; 994107291Skeramida time_t t = (time_t)0; 995107291Skeramida 996107291Skeramida if (twidth == 0) { 997107291Skeramida strcpy(timestr, ctime(&t)); 998107291Skeramida *strchr(timestr, '\n') = '\0'; 999107291Skeramida twidth = strlen(timestr); 1000107291Skeramida } 100198943Sluigi if (rule->timestamp) { 1002107291Skeramida t = _long_to_time(rule->timestamp); 100398943Sluigi 100498943Sluigi strcpy(timestr, ctime(&t)); 100598943Sluigi *strchr(timestr, '\n') = '\0'; 100698943Sluigi printf("%s ", timestr); 100798943Sluigi } else { 1008107291Skeramida printf("%*s", twidth, " "); 100998943Sluigi } 101098943Sluigi } 101198943Sluigi 1012187764Sluigi if (co.show_sets) 1013101628Sluigi printf("set %d ", rule->set); 1014101628Sluigi 101598943Sluigi /* 1016107289Sluigi * print the optional "match probability" 1017107289Sluigi */ 1018107289Sluigi if (rule->cmd_len > 0) { 1019107289Sluigi cmd = rule->cmd ; 1020107289Sluigi if (cmd->opcode == O_PROB) { 1021107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1022107289Sluigi double d = 1.0 * p->d[0]; 1023107289Sluigi 1024107289Sluigi d = (d / 0x7fffffff); 1025107289Sluigi printf("prob %f ", d); 1026107289Sluigi } 1027107289Sluigi } 1028107289Sluigi 1029107289Sluigi /* 103098943Sluigi * first print actions 103198943Sluigi */ 1032220802Sglebius for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 103398943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 103498943Sluigi switch(cmd->opcode) { 103598943Sluigi case O_CHECK_STATE: 103698943Sluigi printf("check-state"); 1037205179Sluigi /* avoid printing anything else */ 1038205179Sluigi flags = HAVE_PROTO | HAVE_SRCIP | 1039205179Sluigi HAVE_DSTIP | HAVE_IP; 104098943Sluigi break; 104198943Sluigi 104298943Sluigi case O_ACCEPT: 104398943Sluigi printf("allow"); 104498943Sluigi break; 104598943Sluigi 104698943Sluigi case O_COUNT: 104798943Sluigi printf("count"); 104898943Sluigi break; 104998943Sluigi 105098943Sluigi case O_DENY: 105198943Sluigi printf("deny"); 105298943Sluigi break; 105398943Sluigi 105499475Sluigi case O_REJECT: 105599475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 105699475Sluigi printf("reset"); 105799475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 105899475Sluigi printf("reject"); 105999475Sluigi else 106099475Sluigi print_reject_code(cmd->arg1); 106199475Sluigi break; 106299475Sluigi 1063149020Sbz case O_UNREACH6: 1064149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1065149020Sbz printf("reset6"); 1066149020Sbz else 1067149020Sbz print_unreach6_code(cmd->arg1); 1068149020Sbz break; 1069149020Sbz 1070159636Soleg case O_SKIPTO: 1071159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 107298943Sluigi break; 107398943Sluigi 107498943Sluigi case O_PIPE: 1075159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1076159636Soleg break; 1077159636Soleg 107898943Sluigi case O_QUEUE: 1079159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1080159636Soleg break; 1081159636Soleg 108298943Sluigi case O_DIVERT: 1083159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1084159636Soleg break; 1085159636Soleg 108698943Sluigi case O_TEE: 1087159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1088159636Soleg break; 1089159636Soleg 1090141351Sglebius case O_NETGRAPH: 1091159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1092159636Soleg break; 1093159636Soleg 1094141351Sglebius case O_NGTEE: 1095159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1096159636Soleg break; 1097141351Sglebius 109898943Sluigi case O_FORWARD_IP: 109998943Sluigi { 110098943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 110198943Sluigi 1102161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1103161424Sjulian printf("fwd tablearg"); 1104161424Sjulian } else { 1105161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1106161424Sjulian } 110798943Sluigi if (s->sa.sin_port) 1108103241Sluigi printf(",%d", s->sa.sin_port); 110998943Sluigi } 111098943Sluigi break; 111198943Sluigi 111298943Sluigi case O_LOG: /* O_LOG is printed last */ 111398943Sluigi logptr = (ipfw_insn_log *)cmd; 111498943Sluigi break; 111598943Sluigi 1116136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1117136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1118136071Sgreen break; 1119136071Sgreen 1120158879Soleg case O_TAG: 1121158879Soleg tagptr = cmd; 1122158879Soleg break; 1123158879Soleg 1124165648Spiso case O_NAT: 1125223080Sae if (cmd->arg1 != 0) 1126223080Sae PRINT_UINT_ARG("nat ", cmd->arg1); 1127223080Sae else 1128223080Sae printf("nat global"); 1129223080Sae break; 1130220804Sglebius 1131178888Sjulian case O_SETFIB: 1132178888Sjulian PRINT_UINT_ARG("setfib ", cmd->arg1); 1133178888Sjulian break; 1134190633Spiso 1135190633Spiso case O_REASS: 1136190633Spiso printf("reass"); 1137190633Spiso break; 1138220804Sglebius 113998943Sluigi default: 1140136071Sgreen printf("** unrecognized action %d len %d ", 114198943Sluigi cmd->opcode, cmd->len); 114298943Sluigi } 114398943Sluigi } 114498943Sluigi if (logptr) { 114598943Sluigi if (logptr->max_log > 0) 114699909Sluigi printf(" log logamount %d", logptr->max_log); 114798943Sluigi else 114899909Sluigi printf(" log"); 114998943Sluigi } 1150204591Sluigi#ifndef NO_ALTQ 1151136071Sgreen if (altqptr) { 1152187983Sluigi print_altq_cmd(altqptr); 1153136071Sgreen } 1154204591Sluigi#endif 1155158879Soleg if (tagptr) { 1156158879Soleg if (tagptr->len & F_NOT) 1157159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1158158879Soleg else 1159159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1160158879Soleg } 1161136071Sgreen 116298943Sluigi /* 1163102087Sluigi * then print the body. 116498943Sluigi */ 1165220802Sglebius for (l = rule->act_ofs, cmd = rule->cmd ; 1166146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1167146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1168146894Smlaier continue; 1169146894Smlaier if (cmd->opcode == O_IP4) { 1170146894Smlaier flags |= HAVE_PROTO4; 1171146894Smlaier break; 1172146894Smlaier } else if (cmd->opcode == O_IP6) { 1173146894Smlaier flags |= HAVE_PROTO6; 1174146894Smlaier break; 1175220804Sglebius } 1176146894Smlaier } 1177102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1178187764Sluigi if (!co.do_compact) { 1179146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1180146894Smlaier printf(" from any to any"); 1181146894Smlaier } 1182205179Sluigi flags |= HAVE_IP | HAVE_OPTIONS | HAVE_PROTO | 1183205179Sluigi HAVE_SRCIP | HAVE_DSTIP; 1184102087Sluigi } 1185102087Sluigi 1186187764Sluigi if (co.comment_only) 1187123495Sluigi comment = "..."; 1188123495Sluigi 1189220802Sglebius for (l = rule->act_ofs, cmd = rule->cmd ; 119098943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 119199475Sluigi /* useful alias */ 119299475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 119398943Sluigi 1194187764Sluigi if (co.comment_only) { 1195123495Sluigi if (cmd->opcode != O_NOP) 1196123495Sluigi continue; 1197123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1198123495Sluigi return; 1199123495Sluigi } 1200123495Sluigi 1201102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1202102087Sluigi 120398943Sluigi switch(cmd->opcode) { 1204117577Sluigi case O_PROB: 1205107289Sluigi break; /* done already */ 1206107289Sluigi 120798943Sluigi case O_PROBE_STATE: 120898943Sluigi break; /* no need to print anything here */ 120998943Sluigi 121098943Sluigi case O_IP_SRC: 1211130281Sru case O_IP_SRC_LOOKUP: 121298943Sluigi case O_IP_SRC_MASK: 121398943Sluigi case O_IP_SRC_ME: 121498943Sluigi case O_IP_SRC_SET: 1215102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 121698943Sluigi if (!(flags & HAVE_SRCIP)) 121798943Sluigi printf(" from"); 121898943Sluigi if ((cmd->len & F_OR) && !or_block) 121998943Sluigi printf(" {"); 1220102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1221102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 122298943Sluigi flags |= HAVE_SRCIP; 122398943Sluigi break; 122498943Sluigi 122598943Sluigi case O_IP_DST: 1226130281Sru case O_IP_DST_LOOKUP: 122798943Sluigi case O_IP_DST_MASK: 122898943Sluigi case O_IP_DST_ME: 122998943Sluigi case O_IP_DST_SET: 1230102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 123198943Sluigi if (!(flags & HAVE_DSTIP)) 123298943Sluigi printf(" to"); 123398943Sluigi if ((cmd->len & F_OR) && !or_block) 123498943Sluigi printf(" {"); 1235102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1236102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 123798943Sluigi flags |= HAVE_DSTIP; 123898943Sluigi break; 123998943Sluigi 1240145246Sbrooks case O_IP6_SRC: 1241145246Sbrooks case O_IP6_SRC_MASK: 1242145246Sbrooks case O_IP6_SRC_ME: 1243147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1244145246Sbrooks if (!(flags & HAVE_SRCIP)) 1245145246Sbrooks printf(" from"); 1246145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1247145246Sbrooks printf(" {"); 1248145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1249145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1250145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1251145246Sbrooks break; 1252145246Sbrooks 1253145246Sbrooks case O_IP6_DST: 1254145246Sbrooks case O_IP6_DST_MASK: 1255145246Sbrooks case O_IP6_DST_ME: 1256145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1257145246Sbrooks if (!(flags & HAVE_DSTIP)) 1258145246Sbrooks printf(" to"); 1259145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1260145246Sbrooks printf(" {"); 1261145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1262145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1263145246Sbrooks flags |= HAVE_DSTIP; 1264145246Sbrooks break; 1265145246Sbrooks 1266145246Sbrooks case O_FLOW6ID: 1267145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1268145246Sbrooks flags |= HAVE_OPTIONS; 1269145246Sbrooks break; 1270145246Sbrooks 127198943Sluigi case O_IP_DSTPORT: 1272205179Sluigi show_prerequisites(&flags, 1273205179Sluigi HAVE_PROTO | HAVE_SRCIP | 1274205179Sluigi HAVE_DSTIP | HAVE_IP, 0); 127598943Sluigi case O_IP_SRCPORT: 1276205179Sluigi show_prerequisites(&flags, 1277205179Sluigi HAVE_PROTO | HAVE_SRCIP, 0); 1278101641Sluigi if ((cmd->len & F_OR) && !or_block) 1279101641Sluigi printf(" {"); 1280172306Smaxim if (cmd->len & F_NOT) 1281172306Smaxim printf(" not"); 1282102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1283102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 128498943Sluigi break; 128598943Sluigi 128698943Sluigi case O_PROTO: { 1287145246Sbrooks struct protoent *pe = NULL; 128898943Sluigi 128998943Sluigi if ((cmd->len & F_OR) && !or_block) 129098943Sluigi printf(" {"); 129198943Sluigi if (cmd->len & F_NOT) 129298943Sluigi printf(" not"); 129398943Sluigi proto = cmd->arg1; 1294145567Sbrooks pe = getprotobynumber(cmd->arg1); 1295146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1296146894Smlaier !(flags & HAVE_PROTO)) 1297146894Smlaier show_prerequisites(&flags, 1298205179Sluigi HAVE_PROTO | HAVE_IP | HAVE_SRCIP | 1299205179Sluigi HAVE_DSTIP | HAVE_OPTIONS, 0); 1300102087Sluigi if (flags & HAVE_OPTIONS) 1301102087Sluigi printf(" proto"); 130298943Sluigi if (pe) 130398943Sluigi printf(" %s", pe->p_name); 130498943Sluigi else 130598943Sluigi printf(" %u", cmd->arg1); 130698943Sluigi } 130798943Sluigi flags |= HAVE_PROTO; 130898943Sluigi break; 1309106505Smaxim 131098943Sluigi default: /*options ... */ 1311146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1312146894Smlaier if (((cmd->opcode == O_IP6) && 1313146894Smlaier (flags & HAVE_PROTO6)) || 1314146894Smlaier ((cmd->opcode == O_IP4) && 1315146894Smlaier (flags & HAVE_PROTO4))) 1316146894Smlaier break; 1317205179Sluigi show_prerequisites(&flags, HAVE_PROTO | HAVE_SRCIP | 1318205179Sluigi HAVE_DSTIP | HAVE_IP | HAVE_OPTIONS, 0); 131998943Sluigi if ((cmd->len & F_OR) && !or_block) 132098943Sluigi printf(" {"); 132198943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 132298943Sluigi printf(" not"); 132398943Sluigi switch(cmd->opcode) { 1324169139Smaxim case O_MACADDR2: { 1325169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1326169139Smaxim 1327169139Smaxim printf(" MAC"); 1328169139Smaxim print_mac(m->addr, m->mask); 1329169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1330169139Smaxim } 1331169139Smaxim break; 1332169139Smaxim 1333169139Smaxim case O_MAC_TYPE: 1334169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1335169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1336169139Smaxim break; 1337169139Smaxim 1338169139Smaxim 133998943Sluigi case O_FRAG: 134098943Sluigi printf(" frag"); 134198943Sluigi break; 134298943Sluigi 1343178888Sjulian case O_FIB: 1344178888Sjulian printf(" fib %u", cmd->arg1 ); 1345178888Sjulian break; 1346215179Sluigi case O_SOCKARG: 1347215179Sluigi printf(" sockarg"); 1348215179Sluigi break; 1349178888Sjulian 135098943Sluigi case O_IN: 135198943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 135298943Sluigi break; 135398943Sluigi 1354136073Sgreen case O_DIVERTED: 1355136073Sgreen switch (cmd->arg1) { 1356136073Sgreen case 3: 1357136073Sgreen printf(" diverted"); 1358136073Sgreen break; 1359136073Sgreen case 1: 1360136073Sgreen printf(" diverted-loopback"); 1361136073Sgreen break; 1362136073Sgreen case 2: 1363136073Sgreen printf(" diverted-output"); 1364136073Sgreen break; 1365136073Sgreen default: 1366136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1367136073Sgreen break; 1368136073Sgreen } 1369136073Sgreen break; 1370136073Sgreen 137198943Sluigi case O_LAYER2: 137298943Sluigi printf(" layer2"); 137398943Sluigi break; 137498943Sluigi case O_XMIT: 137598943Sluigi case O_RECV: 1376140423Sglebius case O_VIA: 1377140423Sglebius { 1378117469Sluigi char const *s; 137998943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 138098943Sluigi 138198943Sluigi if (cmd->opcode == O_XMIT) 138298943Sluigi s = "xmit"; 138398943Sluigi else if (cmd->opcode == O_RECV) 138498943Sluigi s = "recv"; 1385117469Sluigi else /* if (cmd->opcode == O_VIA) */ 138698943Sluigi s = "via"; 138798943Sluigi if (cmdif->name[0] == '\0') 138899475Sluigi printf(" %s %s", s, 138999475Sluigi inet_ntoa(cmdif->p.ip)); 1390140423Sglebius else 1391140423Sglebius printf(" %s %s", s, cmdif->name); 1392140423Sglebius 139398943Sluigi break; 1394140423Sglebius } 139598943Sluigi case O_IPID: 1396116690Sluigi if (F_LEN(cmd) == 1) 1397116690Sluigi printf(" ipid %u", cmd->arg1 ); 1398116690Sluigi else 1399116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1400116690Sluigi O_IPID); 140198943Sluigi break; 140298943Sluigi 140398943Sluigi case O_IPTTL: 1404116690Sluigi if (F_LEN(cmd) == 1) 1405116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1406116690Sluigi else 1407116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1408116690Sluigi O_IPTTL); 140998943Sluigi break; 141098943Sluigi 141198943Sluigi case O_IPVER: 141298943Sluigi printf(" ipver %u", cmd->arg1 ); 141398943Sluigi break; 141498943Sluigi 141599475Sluigi case O_IPPRECEDENCE: 141699475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 141799475Sluigi break; 141899475Sluigi 141998943Sluigi case O_IPLEN: 1420116690Sluigi if (F_LEN(cmd) == 1) 1421116690Sluigi printf(" iplen %u", cmd->arg1 ); 1422116690Sluigi else 1423116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1424116690Sluigi O_IPLEN); 142598943Sluigi break; 142698943Sluigi 1427101116Sluigi case O_IPOPT: 142898943Sluigi print_flags("ipoptions", cmd, f_ipopts); 142998943Sluigi break; 143098943Sluigi 143199475Sluigi case O_IPTOS: 143299475Sluigi print_flags("iptos", cmd, f_iptos); 143399475Sluigi break; 143499475Sluigi 143599475Sluigi case O_ICMPTYPE: 143699475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 143799475Sluigi break; 143899475Sluigi 143998943Sluigi case O_ESTAB: 144098943Sluigi printf(" established"); 144198943Sluigi break; 144298943Sluigi 1443136075Sgreen case O_TCPDATALEN: 1444136075Sgreen if (F_LEN(cmd) == 1) 1445136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1446136075Sgreen else 1447136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1448136075Sgreen O_TCPDATALEN); 1449136075Sgreen break; 1450136075Sgreen 145198943Sluigi case O_TCPFLAGS: 145298943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 145398943Sluigi break; 145498943Sluigi 145598943Sluigi case O_TCPOPTS: 145698943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 145798943Sluigi break; 145898943Sluigi 145998943Sluigi case O_TCPWIN: 146098943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 146198943Sluigi break; 146298943Sluigi 146398943Sluigi case O_TCPACK: 146498943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 146598943Sluigi break; 146698943Sluigi 146798943Sluigi case O_TCPSEQ: 146898943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 146998943Sluigi break; 147098943Sluigi 147198943Sluigi case O_UID: 147298943Sluigi { 147398943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 147498943Sluigi 147598943Sluigi if (pwd) 147698943Sluigi printf(" uid %s", pwd->pw_name); 147798943Sluigi else 147898943Sluigi printf(" uid %u", cmd32->d[0]); 147998943Sluigi } 148098943Sluigi break; 148198943Sluigi 148298943Sluigi case O_GID: 148398943Sluigi { 148498943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 148598943Sluigi 148698943Sluigi if (grp) 148798943Sluigi printf(" gid %s", grp->gr_name); 148898943Sluigi else 148998943Sluigi printf(" gid %u", cmd32->d[0]); 149098943Sluigi } 149198943Sluigi break; 149298943Sluigi 1493133600Scsjp case O_JAIL: 1494133600Scsjp printf(" jail %d", cmd32->d[0]); 1495133600Scsjp break; 1496133600Scsjp 1497112250Scjc case O_VERREVPATH: 1498112250Scjc printf(" verrevpath"); 1499112250Scjc break; 1500116919Sluigi 1501128575Sandre case O_VERSRCREACH: 1502128575Sandre printf(" versrcreach"); 1503128575Sandre break; 1504128575Sandre 1505133387Sandre case O_ANTISPOOF: 1506133387Sandre printf(" antispoof"); 1507133387Sandre break; 1508133387Sandre 1509117241Sluigi case O_IPSEC: 1510117241Sluigi printf(" ipsec"); 1511117241Sluigi break; 1512117241Sluigi 1513117469Sluigi case O_NOP: 1514117626Sluigi comment = (char *)(cmd + 1); 1515117469Sluigi break; 1516117469Sluigi 151798943Sluigi case O_KEEP_STATE: 151898943Sluigi printf(" keep-state"); 151998943Sluigi break; 152098943Sluigi 1521159636Soleg case O_LIMIT: { 152298943Sluigi struct _s_x *p = limit_masks; 152398943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1524117328Sluigi uint8_t x = c->limit_mask; 1525117469Sluigi char const *comma = " "; 152698943Sluigi 152798943Sluigi printf(" limit"); 1528117577Sluigi for (; p->x != 0 ; p++) 152999909Sluigi if ((x & p->x) == p->x) { 153098943Sluigi x &= ~p->x; 153198943Sluigi printf("%s%s", comma, p->s); 153298943Sluigi comma = ","; 153398943Sluigi } 1534159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 153598943Sluigi break; 1536159636Soleg } 153798943Sluigi 1538146894Smlaier case O_IP6: 1539152923Sume printf(" ip6"); 1540145246Sbrooks break; 1541145246Sbrooks 1542146894Smlaier case O_IP4: 1543152923Sume printf(" ip4"); 1544146894Smlaier break; 1545146894Smlaier 1546145246Sbrooks case O_ICMP6TYPE: 1547145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 1548145246Sbrooks break; 1549145246Sbrooks 1550145246Sbrooks case O_EXT_HDR: 1551145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 1552145246Sbrooks break; 1553145246Sbrooks 1554158879Soleg case O_TAGGED: 1555158879Soleg if (F_LEN(cmd) == 1) 1556159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 1557158879Soleg else 1558159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 1559159636Soleg O_TAGGED); 1560158879Soleg break; 1561158879Soleg 156298943Sluigi default: 156398943Sluigi printf(" [opcode %d len %d]", 156498943Sluigi cmd->opcode, cmd->len); 156598943Sluigi } 156698943Sluigi } 156798943Sluigi if (cmd->len & F_OR) { 156898943Sluigi printf(" or"); 156998943Sluigi or_block = 1; 157098943Sluigi } else if (or_block) { 157198943Sluigi printf(" }"); 157298943Sluigi or_block = 0; 157398943Sluigi } 157498943Sluigi } 1575205179Sluigi show_prerequisites(&flags, HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP 1576220802Sglebius | HAVE_IP, 0); 1577117626Sluigi if (comment) 1578117626Sluigi printf(" // %s", comment); 157998943Sluigi printf("\n"); 158098943Sluigi} 158198943Sluigi 158298943Sluigistatic void 1583112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 158498943Sluigi{ 158598943Sluigi struct protoent *pe; 158698943Sluigi struct in_addr a; 1587115793Sticso uint16_t rulenum; 1588159160Smlaier char buf[INET6_ADDRSTRLEN]; 158998943Sluigi 1590187764Sluigi if (!co.do_expired) { 159198943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 159298943Sluigi return; 159398943Sluigi } 1594115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1595117328Sluigi printf("%05d", rulenum); 1596206843Sluigi if (pcwidth > 0 || bcwidth > 0) { 1597206843Sluigi printf(" "); 1598206843Sluigi pr_u64(&d->pcnt, pcwidth); 1599206843Sluigi pr_u64(&d->bcnt, bcwidth); 1600206843Sluigi printf("(%ds)", d->expire); 1601206843Sluigi } 160298943Sluigi switch (d->dyn_type) { 160398943Sluigi case O_LIMIT_PARENT: 160498943Sluigi printf(" PARENT %d", d->count); 160598943Sluigi break; 160698943Sluigi case O_LIMIT: 160798943Sluigi printf(" LIMIT"); 160898943Sluigi break; 160998943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1610106505Smaxim printf(" STATE"); 161198943Sluigi break; 161298943Sluigi } 161398943Sluigi 161498943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 161598943Sluigi printf(" %s", pe->p_name); 161698943Sluigi else 161798943Sluigi printf(" proto %u", d->id.proto); 161898943Sluigi 1619159160Smlaier if (d->id.addr_type == 4) { 1620159160Smlaier a.s_addr = htonl(d->id.src_ip); 1621159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 162298943Sluigi 1623159160Smlaier a.s_addr = htonl(d->id.dst_ip); 1624159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 1625159160Smlaier } else if (d->id.addr_type == 6) { 1626159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 1627159160Smlaier sizeof(buf)), d->id.src_port); 1628159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 1629159160Smlaier sizeof(buf)), d->id.dst_port); 1630159160Smlaier } else 1631159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 1632220804Sglebius 163398943Sluigi printf("\n"); 163498943Sluigi} 163598943Sluigi 1636101978Sluigi/* 1637101978Sluigi * This one handles all set-related commands 1638101978Sluigi * ipfw set { show | enable | disable } 1639101978Sluigi * ipfw set swap X Y 1640101978Sluigi * ipfw set move X to Y 1641101978Sluigi * ipfw set move rule X to Y 1642101978Sluigi */ 1643187767Sluigivoid 1644204591Sluigiipfw_sets_handler(char *av[]) 1645101978Sluigi{ 1646117328Sluigi uint32_t set_disable, masks[2]; 1647101978Sluigi int i, nbytes; 1648117328Sluigi uint16_t rulenum; 1649117328Sluigi uint8_t cmd, new_set; 1650101978Sluigi 1651101978Sluigi av++; 1652101978Sluigi 1653204591Sluigi if (av[0] == NULL) 1654101978Sluigi errx(EX_USAGE, "set needs command"); 1655140271Sbrooks if (_substrcmp(*av, "show") == 0) { 1656204717Sluigi void *data = NULL; 1657117469Sluigi char const *msg; 1658204717Sluigi int nalloc; 1659101978Sluigi 1660204717Sluigi nalloc = nbytes = sizeof(struct ip_fw); 1661204717Sluigi while (nbytes >= nalloc) { 1662204717Sluigi if (data) 1663204717Sluigi free(data); 1664204717Sluigi nalloc = nalloc * 2 + 200; 1665204717Sluigi nbytes = nalloc; 1666206843Sluigi data = safe_calloc(1, nbytes); 1667206843Sluigi if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 1668206843Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 1669204717Sluigi } 1670204717Sluigi 1671115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 1672115793Sticso &set_disable, sizeof(set_disable)); 1673101978Sluigi 1674117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 1675117577Sluigi if ((set_disable & (1<<i))) { 1676101978Sluigi printf("%s %d", msg, i); 1677101978Sluigi msg = ""; 1678101978Sluigi } 1679101978Sluigi msg = (set_disable) ? " enable" : "enable"; 1680117655Sluigi for (i = 0; i < RESVD_SET; i++) 1681117577Sluigi if (!(set_disable & (1<<i))) { 1682101978Sluigi printf("%s %d", msg, i); 1683101978Sluigi msg = ""; 1684101978Sluigi } 1685101978Sluigi printf("\n"); 1686140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 1687204591Sluigi av++; 1688204591Sluigi if ( av[0] == NULL || av[1] == NULL ) 1689101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 1690101978Sluigi rulenum = atoi(av[0]); 1691101978Sluigi new_set = atoi(av[1]); 1692117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 1693101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 1694117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 1695101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 1696101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 1697117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 1698140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 1699204591Sluigi av++; 1700204717Sluigi if (av[0] && _substrcmp(*av, "rule") == 0) { 1701101978Sluigi cmd = 2; 1702204591Sluigi av++; 1703101978Sluigi } else 1704101978Sluigi cmd = 3; 1705204591Sluigi if (av[0] == NULL || av[1] == NULL || av[2] == NULL || 1706204591Sluigi av[3] != NULL || _substrcmp(av[1], "to") != 0) 1707101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 1708101978Sluigi rulenum = atoi(av[0]); 1709101978Sluigi new_set = atoi(av[2]); 1710117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 1711182823Srik (cmd == 2 && rulenum == IPFW_DEFAULT_RULE) ) 1712101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 1713117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 1714101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 1715101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 1716117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 1717140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 1718140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 1719140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 1720101978Sluigi 1721204591Sluigi av++; 1722101978Sluigi masks[0] = masks[1] = 0; 1723101978Sluigi 1724204717Sluigi while (av[0]) { 1725101978Sluigi if (isdigit(**av)) { 1726101978Sluigi i = atoi(*av); 1727117655Sluigi if (i < 0 || i > RESVD_SET) 1728101978Sluigi errx(EX_DATAERR, 1729101978Sluigi "invalid set number %d\n", i); 1730101978Sluigi masks[which] |= (1<<i); 1731140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 1732101978Sluigi which = 0; 1733140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 1734101978Sluigi which = 1; 1735101978Sluigi else 1736101978Sluigi errx(EX_DATAERR, 1737101978Sluigi "invalid set command %s\n", *av); 1738204591Sluigi av++; 1739101978Sluigi } 1740101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 1741101978Sluigi errx(EX_DATAERR, 1742101978Sluigi "cannot enable and disable the same set\n"); 1743101978Sluigi 1744117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 1745101978Sluigi if (i) 1746101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 1747101978Sluigi } else 1748101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 1749101978Sluigi} 1750101978Sluigi 1751187767Sluigivoid 1752204591Sluigiipfw_sysctl_handler(char *av[], int which) 1753109126Sdillon{ 1754109126Sdillon av++; 1755109126Sdillon 1756204591Sluigi if (av[0] == NULL) { 1757109126Sdillon warnx("missing keyword to enable/disable\n"); 1758140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 1759116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 1760116770Sluigi &which, sizeof(which)); 1761206266Sume sysctlbyname("net.inet6.ip6.fw.enable", NULL, 0, 1762206266Sume &which, sizeof(which)); 1763140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 1764116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 1765116770Sluigi &which, sizeof(which)); 1766140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 1767116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 1768116770Sluigi &which, sizeof(which)); 1769140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 1770116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 1771116770Sluigi &which, sizeof(which)); 1772140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 1773116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 1774116770Sluigi &which, sizeof(which)); 1775204591Sluigi#ifndef NO_ALTQ 1776140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 1777136071Sgreen altq_set_enabled(which); 1778204591Sluigi#endif 1779109126Sdillon } else { 1780109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 1781109126Sdillon } 1782109126Sdillon} 1783109126Sdillon 1784187767Sluigivoid 1785187767Sluigiipfw_list(int ac, char *av[], int show_counters) 178698943Sluigi{ 178798943Sluigi struct ip_fw *r; 178898943Sluigi ipfw_dyn_rule *dynrules, *d; 178998943Sluigi 1790117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 1791117469Sluigi char *lim; 1792117469Sluigi void *data = NULL; 1793112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 179498943Sluigi int exitval = EX_OK; 179598943Sluigi int lac; 179698943Sluigi char **lav; 1797117469Sluigi u_long rnum, last; 179898943Sluigi char *endptr; 179998943Sluigi int seen = 0; 1800170923Smaxim uint8_t set; 180198943Sluigi 1802187764Sluigi const int ocmd = co.do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 180398943Sluigi int nalloc = 1024; /* start somewhere... */ 180498943Sluigi 1805135036Smaxim last = 0; 1806135036Smaxim 1807187764Sluigi if (co.test_only) { 1808117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 1809117328Sluigi return; 1810117328Sluigi } 1811204591Sluigi if (co.do_pipe) { 1812204591Sluigi dummynet_list(ac, av, show_counters); 1813204591Sluigi return; 1814204591Sluigi } 1815117328Sluigi 181698943Sluigi ac--; 181798943Sluigi av++; 181898943Sluigi 181998943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 182098943Sluigi nbytes = nalloc; 182198943Sluigi 182298943Sluigi while (nbytes >= nalloc) { 182398943Sluigi nalloc = nalloc * 2 + 200; 182498943Sluigi nbytes = nalloc; 1825187716Sluigi data = safe_realloc(data, nbytes); 1826119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 182798943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 1828187764Sluigi co.do_pipe ? "DUMMYNET" : "FW"); 182998943Sluigi } 183098943Sluigi 183198943Sluigi /* 183298943Sluigi * Count static rules. They have variable size so we 183398943Sluigi * need to scan the list to count them. 183498943Sluigi */ 1835117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 1836182823Srik r->rulenum < IPFW_DEFAULT_RULE && (char *)r < lim; 1837117469Sluigi ++nstat, r = NEXT(r) ) 183898943Sluigi ; /* nothing */ 183998943Sluigi 184098943Sluigi /* 184198943Sluigi * Count dynamic rules. This is easier as they have 184298943Sluigi * fixed size. 184398943Sluigi */ 1844117469Sluigi r = NEXT(r); 184598943Sluigi dynrules = (ipfw_dyn_rule *)r ; 1846117469Sluigi n = (char *)r - (char *)data; 184798943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 184898943Sluigi 1849112189Smaxim /* if showing stats, figure out column widths ahead of time */ 1850112189Smaxim bcwidth = pcwidth = 0; 1851117469Sluigi if (show_counters) { 1852117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 1853170923Smaxim /* skip rules from another set */ 1854187764Sluigi if (co.use_set && r->set != co.use_set - 1) 1855170923Smaxim continue; 1856170923Smaxim 1857112189Smaxim /* packet counter */ 1858206843Sluigi width = pr_u64(&r->pcnt, 0); 1859112189Smaxim if (width > pcwidth) 1860112189Smaxim pcwidth = width; 1861112189Smaxim 1862112189Smaxim /* byte counter */ 1863206843Sluigi width = pr_u64(&r->bcnt, 0); 1864112189Smaxim if (width > bcwidth) 1865112189Smaxim bcwidth = width; 1866112189Smaxim } 1867112189Smaxim } 1868187764Sluigi if (co.do_dynamic && ndyn) { 1869112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 1870187764Sluigi if (co.use_set) { 1871170923Smaxim /* skip rules from another set */ 1872171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 1873170923Smaxim &set, sizeof(uint8_t)); 1874187764Sluigi if (set != co.use_set - 1) 1875170923Smaxim continue; 1876170923Smaxim } 1877206843Sluigi width = pr_u64(&d->pcnt, 0); 1878112189Smaxim if (width > pcwidth) 1879112189Smaxim pcwidth = width; 1880112189Smaxim 1881206843Sluigi width = pr_u64(&d->bcnt, 0); 1882112189Smaxim if (width > bcwidth) 1883112189Smaxim bcwidth = width; 1884112189Smaxim } 1885112189Smaxim } 188698943Sluigi /* if no rule numbers were specified, list all rules */ 188798943Sluigi if (ac == 0) { 1888170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 1889187764Sluigi if (co.use_set && r->set != co.use_set - 1) 1890170923Smaxim continue; 1891112189Smaxim show_ipfw(r, pcwidth, bcwidth); 1892170923Smaxim } 189398943Sluigi 1894187764Sluigi if (co.do_dynamic && ndyn) { 189598943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 1896170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 1897187764Sluigi if (co.use_set) { 1898171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 1899170923Smaxim &set, sizeof(uint8_t)); 1900187764Sluigi if (set != co.use_set - 1) 1901170923Smaxim continue; 1902170923Smaxim } 1903112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 190498943Sluigi } 1905170923Smaxim } 190698943Sluigi goto done; 190798943Sluigi } 190898943Sluigi 190998943Sluigi /* display specific rules requested on command line */ 191098943Sluigi 191198943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 191298943Sluigi /* convert command line rule # */ 1913117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 1914117469Sluigi if (*endptr == '-') 1915117469Sluigi last = strtoul(endptr+1, &endptr, 10); 191698943Sluigi if (*endptr) { 191798943Sluigi exitval = EX_USAGE; 191898943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 191998943Sluigi continue; 192098943Sluigi } 1921117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 1922117469Sluigi if (r->rulenum > last) 192398943Sluigi break; 1924187764Sluigi if (co.use_set && r->set != co.use_set - 1) 1925170923Smaxim continue; 1926117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 1927112189Smaxim show_ipfw(r, pcwidth, bcwidth); 192898943Sluigi seen = 1; 192998943Sluigi } 193098943Sluigi } 193198943Sluigi if (!seen) { 193298943Sluigi /* give precedence to other error(s) */ 193398943Sluigi if (exitval == EX_OK) 193498943Sluigi exitval = EX_UNAVAILABLE; 193598943Sluigi warnx("rule %lu does not exist", rnum); 193698943Sluigi } 193798943Sluigi } 193898943Sluigi 1939187764Sluigi if (co.do_dynamic && ndyn) { 194098943Sluigi printf("## Dynamic rules:\n"); 194198943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 1942145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 1943117469Sluigi if (*endptr == '-') 1944117469Sluigi last = strtoul(endptr+1, &endptr, 10); 194598943Sluigi if (*endptr) 194698943Sluigi /* already warned */ 194798943Sluigi continue; 194898943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 1949115793Sticso uint16_t rulenum; 1950115793Sticso 1951115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1952115793Sticso if (rulenum > rnum) 195398943Sluigi break; 1954187764Sluigi if (co.use_set) { 1955171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 1956170923Smaxim &set, sizeof(uint8_t)); 1957187764Sluigi if (set != co.use_set - 1) 1958170923Smaxim continue; 1959170923Smaxim } 1960117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 1961112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 196298943Sluigi } 196398943Sluigi } 196498943Sluigi } 196598943Sluigi 196698943Sluigi ac = 0; 196798943Sluigi 196898943Sluigidone: 196998943Sluigi free(data); 197098943Sluigi 197198943Sluigi if (exitval != EX_OK) 197298943Sluigi exit(exitval); 1973117469Sluigi#undef NEXT 197498943Sluigi} 197598943Sluigi 197698943Sluigistatic int 197798943Sluigilookup_host (char *host, struct in_addr *ipaddr) 197898943Sluigi{ 197998943Sluigi struct hostent *he; 198098943Sluigi 198198943Sluigi if (!inet_aton(host, ipaddr)) { 198298943Sluigi if ((he = gethostbyname(host)) == NULL) 198398943Sluigi return(-1); 198498943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 198598943Sluigi } 198698943Sluigi return(0); 198798943Sluigi} 198898943Sluigi 198998943Sluigi/* 199098943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 199198943Sluigi * Update length as appropriate. 199298943Sluigi * The following formats are allowed: 199398943Sluigi * me returns O_IP_*_ME 199498943Sluigi * 1.2.3.4 single IP address 199598943Sluigi * 1.2.3.4:5.6.7.8 address:mask 199698943Sluigi * 1.2.3.4/24 address/mask 199798943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 1998117328Sluigi * We can have multiple comma-separated address/mask entries. 199998943Sluigi */ 200098943Sluigistatic void 200198943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 200298943Sluigi{ 2003117328Sluigi int len = 0; 2004117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 200598943Sluigi 200698943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 200798943Sluigi 2008140271Sbrooks if (_substrcmp(av, "any") == 0) 200998943Sluigi return; 201098943Sluigi 2011140271Sbrooks if (_substrcmp(av, "me") == 0) { 201298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 201398943Sluigi return; 201498943Sluigi } 201598943Sluigi 2016140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2017130281Sru char *p = strchr(av + 6, ','); 2018130281Sru 2019130281Sru if (p) 2020130281Sru *p++ = '\0'; 2021130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2022130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2023130281Sru if (p) { 2024130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2025130281Sru d[0] = strtoul(p, NULL, 0); 2026130281Sru } else 2027130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2028130281Sru return; 2029130281Sru } 2030130281Sru 2031117328Sluigi while (av) { 2032117328Sluigi /* 2033117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2034117328Sluigi * ',' indicating another address follows, '{' indicating a 2035117328Sluigi * set of addresses of unspecified size. 2036117328Sluigi */ 2037165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2038117328Sluigi int masklen; 2039187477Sluigi char md, nd = '\0'; 2040117328Sluigi 204198943Sluigi if (p) { 204298943Sluigi md = *p; 204398943Sluigi *p++ = '\0'; 2044165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2045165851Smlaier nd = *t; 2046165851Smlaier *t = '\0'; 2047165851Smlaier } 2048117328Sluigi } else 2049117328Sluigi md = '\0'; 205098943Sluigi 2051117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 205298943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 205398943Sluigi switch (md) { 205498943Sluigi case ':': 2055117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 205698943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 205798943Sluigi break; 205898943Sluigi case '/': 2059117328Sluigi masklen = atoi(p); 2060117328Sluigi if (masklen == 0) 2061117328Sluigi d[1] = htonl(0); /* mask */ 2062117328Sluigi else if (masklen > 32) 206398943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 206498943Sluigi else 2065117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 206698943Sluigi break; 2067117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2068117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2069117328Sluigi *(--p) = md; 2070117328Sluigi break; 2071117328Sluigi 2072117328Sluigi case ',': /* single address plus continuation */ 2073117328Sluigi *(--p) = md; 2074117328Sluigi /* FALLTHROUGH */ 2075117328Sluigi case 0: /* initialization value */ 207698943Sluigi default: 2077117328Sluigi d[1] = htonl(~0); /* force /32 */ 207898943Sluigi break; 207998943Sluigi } 2080117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2081165851Smlaier if (t) 2082165851Smlaier *t = nd; 2083117328Sluigi /* find next separator */ 208498943Sluigi if (p) 2085117328Sluigi p = strpbrk(p, ",{"); 2086117328Sluigi if (p && *p == '{') { 2087117328Sluigi /* 2088117328Sluigi * We have a set of addresses. They are stored as follows: 2089117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2090117328Sluigi * addr is the base address IN HOST FORMAT 2091117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2092117328Sluigi * the next multiple of 32) with bits set 2093117328Sluigi * for each host in the map. 2094117328Sluigi */ 2095117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 209698943Sluigi int low, high; 2097117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 209898943Sluigi 2099117328Sluigi if (len > 0) 2100117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2101117328Sluigi if (i < 24 || i > 31) 2102117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2103117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2104117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 210598943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 210698943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2107101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2108117328Sluigi map[i] = 0; /* clear map */ 210998943Sluigi 2110117328Sluigi av = p + 1; 2111117328Sluigi low = d[0] & 0xff; 211298943Sluigi high = low + cmd->o.arg1 - 1; 2113117328Sluigi /* 2114117328Sluigi * Here, i stores the previous value when we specify a range 2115117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2116117328Sluigi * have no previous value. 2117117328Sluigi */ 2118116716Sluigi i = -1; /* previous value in a range */ 211998943Sluigi while (isdigit(*av)) { 212098943Sluigi char *s; 2121117328Sluigi int a = strtol(av, &s, 0); 212298943Sluigi 2123117328Sluigi if (s == av) { /* no parameter */ 2124117328Sluigi if (*av != '}') 2125117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2126117328Sluigi if (i != -1) 2127117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2128117328Sluigi break; 2129117328Sluigi } 2130117328Sluigi if (a < low || a > high) 2131117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 213298943Sluigi a, low, high); 213398943Sluigi a -= low; 2134116716Sluigi if (i == -1) /* no previous in range */ 2135116716Sluigi i = a; 2136116716Sluigi else { /* check that range is valid */ 2137116716Sluigi if (i > a) 2138116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2139116716Sluigi i+low, a+low); 2140116716Sluigi if (*s == '-') 2141116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2142116716Sluigi } 2143116716Sluigi for (; i <= a; i++) 2144117328Sluigi map[i/32] |= 1<<(i & 31); 2145116716Sluigi i = -1; 2146116716Sluigi if (*s == '-') 2147116716Sluigi i = a; 2148117328Sluigi else if (*s == '}') 2149116716Sluigi break; 215098943Sluigi av = s+1; 215198943Sluigi } 215298943Sluigi return; 215398943Sluigi } 2154117328Sluigi av = p; 2155117328Sluigi if (av) /* then *av must be a ',' */ 2156117328Sluigi av++; 215798943Sluigi 2158117328Sluigi /* Check this entry */ 2159117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2160117328Sluigi /* 2161117328Sluigi * 'any' turns the entire list into a NOP. 2162117328Sluigi * 'not any' never matches, so it is removed from the 2163117328Sluigi * list unless it is the only item, in which case we 2164117328Sluigi * report an error. 2165117328Sluigi */ 2166117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2167117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2168117328Sluigi errx(EX_DATAERR, "not any never matches"); 2169117328Sluigi } 2170117328Sluigi /* else do nothing and skip this entry */ 2171128067Smaxim return; 2172117328Sluigi } 2173117328Sluigi /* A single IP can be stored in an optimized format */ 2174204591Sluigi if (d[1] == (uint32_t)~0 && av == NULL && len == 0) { 217598943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2176117328Sluigi return; 2177117328Sluigi } 2178117328Sluigi len += 2; /* two words... */ 2179117328Sluigi d += 2; 2180117328Sluigi } /* end while */ 2181162363Sjhay if (len + 1 > F_LEN_MASK) 2182162363Sjhay errx(EX_DATAERR, "address list too long"); 2183117328Sluigi cmd->o.len |= len+1; 218498943Sluigi} 218598943Sluigi 218698943Sluigi 2187145246Sbrooks/* n2mask sets n bits of the mask */ 2188187769Sluigivoid 2189145246Sbrooksn2mask(struct in6_addr *mask, int n) 2190145246Sbrooks{ 2191145246Sbrooks static int minimask[9] = 2192145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2193145246Sbrooks u_char *p; 2194145246Sbrooks 2195145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2196145246Sbrooks p = (u_char *) mask; 2197145246Sbrooks for (; n > 0; p++, n -= 8) { 2198145246Sbrooks if (n >= 8) 2199145246Sbrooks *p = 0xff; 2200145246Sbrooks else 2201145246Sbrooks *p = minimask[n]; 2202145246Sbrooks } 2203145246Sbrooks return; 2204145246Sbrooks} 2205145246Sbrooks 220698943Sluigi/* 220798943Sluigi * helper function to process a set of flags and set bits in the 220898943Sluigi * appropriate masks. 220998943Sluigi */ 221098943Sluigistatic void 221198943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 221298943Sluigi struct _s_x *flags, char *p) 221398943Sluigi{ 2214117328Sluigi uint8_t set=0, clear=0; 221598943Sluigi 221698943Sluigi while (p && *p) { 221798943Sluigi char *q; /* points to the separator */ 221898943Sluigi int val; 2219117328Sluigi uint8_t *which; /* mask we are working on */ 222098943Sluigi 222198943Sluigi if (*p == '!') { 222298943Sluigi p++; 222398943Sluigi which = &clear; 222498943Sluigi } else 222598943Sluigi which = &set; 222698943Sluigi q = strchr(p, ','); 222798943Sluigi if (q) 222898943Sluigi *q++ = '\0'; 222998943Sluigi val = match_token(flags, p); 223098943Sluigi if (val <= 0) 223198943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 2232117328Sluigi *which |= (uint8_t)val; 223398943Sluigi p = q; 223498943Sluigi } 2235220802Sglebius cmd->opcode = opcode; 2236220802Sglebius cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 2237220802Sglebius cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 223898943Sluigi} 223998943Sluigi 224098943Sluigi 2241187767Sluigivoid 2242204591Sluigiipfw_delete(char *av[]) 224398943Sluigi{ 2244117328Sluigi uint32_t rulenum; 224598943Sluigi int i; 224698943Sluigi int exitval = EX_OK; 2247101628Sluigi int do_set = 0; 224898943Sluigi 2249204591Sluigi av++; 2250130013Scsjp NEED1("missing rule specification"); 2251204591Sluigi if ( *av && _substrcmp(*av, "set") == 0) { 2252170923Smaxim /* Do not allow using the following syntax: 2253170923Smaxim * ipfw set N delete set M 2254170923Smaxim */ 2255187764Sluigi if (co.use_set) 2256170923Smaxim errx(EX_DATAERR, "invalid syntax"); 2257101978Sluigi do_set = 1; /* delete set */ 2258204591Sluigi av++; 2259101978Sluigi } 226098943Sluigi 226198943Sluigi /* Rule number */ 2262204591Sluigi while (*av && isdigit(**av)) { 2263204591Sluigi i = atoi(*av); av++; 2264187764Sluigi if (co.do_nat) { 2265165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 2266165648Spiso if (exitval) { 2267165648Spiso exitval = EX_UNAVAILABLE; 2268165648Spiso warn("rule %u not available", i); 2269165648Spiso } 2270187764Sluigi } else if (co.do_pipe) { 2271187769Sluigi exitval = ipfw_delete_pipe(co.do_pipe, i); 227298943Sluigi } else { 2273187764Sluigi if (co.use_set) 2274170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 2275187764Sluigi ((co.use_set - 1) << 16); 2276170923Smaxim else 2277101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 2278117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 227998943Sluigi if (i) { 228098943Sluigi exitval = EX_UNAVAILABLE; 228198943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 228298943Sluigi rulenum); 228398943Sluigi } 228498943Sluigi } 228598943Sluigi } 228698943Sluigi if (exitval != EX_OK) 228798943Sluigi exit(exitval); 228898943Sluigi} 228998943Sluigi 229098943Sluigi 229198943Sluigi/* 229298943Sluigi * fill the interface structure. We do not check the name as we can 229398943Sluigi * create interfaces dynamically, so checking them at insert time 229498943Sluigi * makes relatively little sense. 2295220802Sglebius * Interface names containing '*', '?', or '[' are assumed to be shell 2296121816Sbrooks * patterns which match interfaces. 229798943Sluigi */ 229898943Sluigistatic void 229998943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 230098943Sluigi{ 230198943Sluigi cmd->name[0] = '\0'; 230298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 230398943Sluigi 230498943Sluigi /* Parse the interface or address */ 2305140271Sbrooks if (strcmp(arg, "any") == 0) 230698943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 230798943Sluigi else if (!isdigit(*arg)) { 2308121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 2309121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 231098943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 231198943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 231298943Sluigi} 231398943Sluigi 231498943Sluigistatic void 2315169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 231698943Sluigi{ 2317204591Sluigi int i; 2318204591Sluigi size_t l; 2319169424Smaxim char *ap, *ptr, *optr; 2320169424Smaxim struct ether_addr *mac; 2321169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 232298943Sluigi 2323169424Smaxim if (strcmp(p, "any") == 0) { 2324169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 2325169424Smaxim addr[i] = mask[i] = 0; 232698943Sluigi return; 2327169424Smaxim } 232898943Sluigi 2329169424Smaxim optr = ptr = strdup(p); 2330169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 2331169424Smaxim l = strlen(ap); 2332169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 2333169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 2334169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 2335169424Smaxim } else 2336169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 2337169424Smaxim 2338169424Smaxim if (ptr != NULL) { /* we have mask? */ 2339169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 2340204591Sluigi long ml = strtol(ptr, &ap, 10); 2341204591Sluigi if (*ap != 0 || ml > ETHER_ADDR_LEN * 8 || ml < 0) 2342169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 2343204591Sluigi for (i = 0; ml > 0 && i < ETHER_ADDR_LEN; ml -= 8, i++) 2344204591Sluigi mask[i] = (ml >= 8) ? 0xff: (~0) << (8 - ml); 2345169424Smaxim } else { /* mask */ 2346169424Smaxim l = strlen(ptr); 2347169424Smaxim if (strspn(ptr, macset) != l || 2348169424Smaxim (mac = ether_aton(ptr)) == NULL) 2349169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 2350169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 235198943Sluigi } 2352169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 2353169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 235498943Sluigi mask[i] = 0xff; 235598943Sluigi } 2356169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 235798943Sluigi addr[i] &= mask[i]; 2358169424Smaxim 2359169424Smaxim free(optr); 236098943Sluigi} 236198943Sluigi 236298943Sluigi/* 236398943Sluigi * helper function, updates the pointer to cmd with the length 236498943Sluigi * of the current command, and also cleans up the first word of 236598943Sluigi * the new command in case it has been clobbered before. 236698943Sluigi */ 236798943Sluigistatic ipfw_insn * 236898943Sluiginext_cmd(ipfw_insn *cmd) 236998943Sluigi{ 237098943Sluigi cmd += F_LEN(cmd); 237198943Sluigi bzero(cmd, sizeof(*cmd)); 237298943Sluigi return cmd; 237398943Sluigi} 237498943Sluigi 237598943Sluigi/* 2376117469Sluigi * Takes arguments and copies them into a comment 2377117469Sluigi */ 2378117469Sluigistatic void 2379204591Sluigifill_comment(ipfw_insn *cmd, char **av) 2380117469Sluigi{ 2381117469Sluigi int i, l; 2382117469Sluigi char *p = (char *)(cmd + 1); 2383117577Sluigi 2384117469Sluigi cmd->opcode = O_NOP; 2385117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 2386117469Sluigi 2387117469Sluigi /* Compute length of comment string. */ 2388204591Sluigi for (i = 0, l = 0; av[i] != NULL; i++) 2389117469Sluigi l += strlen(av[i]) + 1; 2390117469Sluigi if (l == 0) 2391117469Sluigi return; 2392117469Sluigi if (l > 84) 2393117469Sluigi errx(EX_DATAERR, 2394117469Sluigi "comment too long (max 80 chars)"); 2395117469Sluigi l = 1 + (l+3)/4; 2396117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 2397204591Sluigi for (i = 0; av[i] != NULL; i++) { 2398117469Sluigi strcpy(p, av[i]); 2399117469Sluigi p += strlen(av[i]); 2400117469Sluigi *p++ = ' '; 2401117469Sluigi } 2402117469Sluigi *(--p) = '\0'; 2403117469Sluigi} 2404117577Sluigi 2405117469Sluigi/* 240698943Sluigi * A function to fill simple commands of size 1. 240798943Sluigi * Existing flags are preserved. 240898943Sluigi */ 240998943Sluigistatic void 2410117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 241198943Sluigi{ 241298943Sluigi cmd->opcode = opcode; 241398943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 241498943Sluigi cmd->arg1 = arg; 241598943Sluigi} 241698943Sluigi 241798943Sluigi/* 241898943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 241998943Sluigi * two microinstructions, and returns the pointer to the last one. 242098943Sluigi */ 242198943Sluigistatic ipfw_insn * 2422204591Sluigiadd_mac(ipfw_insn *cmd, char *av[]) 242398943Sluigi{ 2424102087Sluigi ipfw_insn_mac *mac; 242598943Sluigi 2426204591Sluigi if ( ( av[0] == NULL ) || ( av[1] == NULL ) ) 2427102098Sluigi errx(EX_DATAERR, "MAC dst src"); 242898943Sluigi 242998943Sluigi cmd->opcode = O_MACADDR2; 243098943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 243198943Sluigi 243298943Sluigi mac = (ipfw_insn_mac *)cmd; 2433101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 2434169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 2435169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 2436102087Sluigi return cmd; 2437102087Sluigi} 243898943Sluigi 2439102087Sluigistatic ipfw_insn * 2440204591Sluigiadd_mactype(ipfw_insn *cmd, char *av) 2441102087Sluigi{ 2442204591Sluigi if (!av) 2443102087Sluigi errx(EX_DATAERR, "missing MAC type"); 2444102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 2445102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 244698943Sluigi cmd->opcode = O_MAC_TYPE; 2447102087Sluigi return cmd; 2448102087Sluigi } else 2449102087Sluigi return NULL; 2450102087Sluigi} 245198943Sluigi 2452102087Sluigistatic ipfw_insn * 2453152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 2454102087Sluigi{ 2455102087Sluigi struct protoent *pe; 2456152923Sume char *ep; 2457152923Sume int proto; 2458102087Sluigi 2459156315Sume proto = strtol(av, &ep, 10); 2460156315Sume if (*ep != '\0' || proto <= 0) { 2461152923Sume if ((pe = getprotobyname(av)) == NULL) 2462152923Sume return NULL; 2463152923Sume proto = pe->p_proto; 2464152923Sume } 2465145246Sbrooks 2466152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 2467152923Sume *protop = proto; 2468152923Sume return cmd; 2469152923Sume} 2470152923Sume 2471152923Sumestatic ipfw_insn * 2472152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 2473152923Sume{ 2474152923Sume u_char proto = IPPROTO_IP; 2475152923Sume 2476156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 2477146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 2478152923Sume else if (strcmp(av, "ip4") == 0) 2479152923Sume /* explicit "just IPv4" rule */ 2480152923Sume fill_cmd(cmd, O_IP4, 0, 0); 2481152923Sume else if (strcmp(av, "ip6") == 0) { 2482152923Sume /* explicit "just IPv6" rule */ 2483152923Sume proto = IPPROTO_IPV6; 2484152923Sume fill_cmd(cmd, O_IP6, 0, 0); 2485152923Sume } else 2486152923Sume return add_proto0(cmd, av, protop); 2487152923Sume 2488152923Sume *protop = proto; 2489152923Sume return cmd; 2490152923Sume} 2491152923Sume 2492152923Sumestatic ipfw_insn * 2493152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 2494152923Sume{ 2495152923Sume u_char proto = IPPROTO_IP; 2496152923Sume 2497152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 2498152923Sume ; /* do not set O_IP4 nor O_IP6 */ 2499146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 2500146894Smlaier /* explicit "just IPv4" rule */ 2501146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 2502146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 2503146894Smlaier /* explicit "just IPv6" rule */ 2504152923Sume proto = IPPROTO_IPV6; 2505146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 2506152923Sume } else 2507152923Sume return add_proto0(cmd, av, protop); 2508145246Sbrooks 2509152923Sume *protop = proto; 251098943Sluigi return cmd; 251198943Sluigi} 251298943Sluigi 2513102087Sluigistatic ipfw_insn * 2514102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 2515102087Sluigi{ 2516102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 2517102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 2518102087Sluigi cmd->opcode = O_IP_SRC_SET; 2519130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 2520130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 2521102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 2522102087Sluigi cmd->opcode = O_IP_SRC_ME; 2523102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 2524102087Sluigi cmd->opcode = O_IP_SRC; 2525117328Sluigi else /* addr/mask */ 2526102087Sluigi cmd->opcode = O_IP_SRC_MASK; 2527102087Sluigi return cmd; 2528102087Sluigi} 2529102087Sluigi 2530102087Sluigistatic ipfw_insn * 2531102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 2532102087Sluigi{ 2533102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 2534102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 2535102087Sluigi ; 2536130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 2537130281Sru ; 2538102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 2539102087Sluigi cmd->opcode = O_IP_DST_ME; 2540102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 2541102087Sluigi cmd->opcode = O_IP_DST; 2542117328Sluigi else /* addr/mask */ 2543102087Sluigi cmd->opcode = O_IP_DST_MASK; 2544102087Sluigi return cmd; 2545102087Sluigi} 2546102087Sluigi 2547102087Sluigistatic ipfw_insn * 2548102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 2549102087Sluigi{ 2550204591Sluigi /* XXX "any" is trapped before. Perhaps "to" */ 2551140271Sbrooks if (_substrcmp(av, "any") == 0) { 2552102087Sluigi return NULL; 2553102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 2554102087Sluigi /* XXX todo: check that we have a protocol with ports */ 2555102087Sluigi cmd->opcode = opcode; 2556102087Sluigi return cmd; 2557102087Sluigi } 2558102087Sluigi return NULL; 2559102087Sluigi} 2560102087Sluigi 2561145246Sbrooksstatic ipfw_insn * 2562145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 2563145246Sbrooks{ 2564145246Sbrooks struct in6_addr a; 2565158553Smlaier char *host, *ch; 2566158553Smlaier ipfw_insn *ret = NULL; 2567145246Sbrooks 2568158553Smlaier if ((host = strdup(av)) == NULL) 2569158553Smlaier return NULL; 2570158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 2571158553Smlaier *ch = '\0'; 2572158553Smlaier 2573145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 2574204591Sluigi inet_pton(AF_INET6, host, &a) == 1) 2575158553Smlaier ret = add_srcip6(cmd, av); 2576145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 2577161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 2578204591Sluigi inet_pton(AF_INET6, host, &a) != 1)) 2579158553Smlaier ret = add_srcip(cmd, av); 2580161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 2581158553Smlaier ret = cmd; 2582145246Sbrooks 2583158553Smlaier free(host); 2584158553Smlaier return ret; 2585145246Sbrooks} 2586145246Sbrooks 2587145246Sbrooksstatic ipfw_insn * 2588145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 2589145246Sbrooks{ 2590145246Sbrooks struct in6_addr a; 2591158553Smlaier char *host, *ch; 2592158553Smlaier ipfw_insn *ret = NULL; 2593145246Sbrooks 2594158553Smlaier if ((host = strdup(av)) == NULL) 2595158553Smlaier return NULL; 2596158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 2597158553Smlaier *ch = '\0'; 2598158553Smlaier 2599145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 2600204591Sluigi inet_pton(AF_INET6, host, &a) == 1) 2601158553Smlaier ret = add_dstip6(cmd, av); 2602145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 2603161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 2604204591Sluigi inet_pton(AF_INET6, host, &a) != 1)) 2605158553Smlaier ret = add_dstip(cmd, av); 2606161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 2607158553Smlaier ret = cmd; 2608145246Sbrooks 2609158553Smlaier free(host); 2610158553Smlaier return ret; 2611145246Sbrooks} 2612145246Sbrooks 261398943Sluigi/* 261498943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 261598943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 261698943Sluigi * into the actual rule. 261798943Sluigi * 2618136071Sgreen * The syntax for a rule starts with the action, followed by 2619136071Sgreen * optional action parameters, and the various match patterns. 2620108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 262198943Sluigi * (generated if the rule includes a keep-state option), then the 2622136071Sgreen * various match patterns, log/altq actions, and the actual action. 2623106505Smaxim * 262498943Sluigi */ 2625187767Sluigivoid 2626204591Sluigiipfw_add(char *av[]) 262798943Sluigi{ 262898943Sluigi /* 262998943Sluigi * rules are added into the 'rulebuf' and then copied in 263098943Sluigi * the correct order into the actual rule. 263198943Sluigi * Some things that need to go out of order (prob, action etc.) 263298943Sluigi * go into actbuf[]. 263398943Sluigi */ 2634117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 263598943Sluigi 2636117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 2637102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 263898943Sluigi 263998943Sluigi struct ip_fw *rule; 264098943Sluigi 264198943Sluigi /* 264298943Sluigi * various flags used to record that we entered some fields. 264398943Sluigi */ 2644101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 2645158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 2646134475Smaxim size_t len; 264798943Sluigi 264898943Sluigi int i; 264998943Sluigi 265098943Sluigi int open_par = 0; /* open parenthesis ( */ 265198943Sluigi 265298943Sluigi /* proto is here because it is used to fetch ports */ 265398943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 265498943Sluigi 2655107289Sluigi double match_prob = 1; /* match probability, default is always match */ 2656107289Sluigi 265798943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 265898943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 265998943Sluigi bzero(rulebuf, sizeof(rulebuf)); 266098943Sluigi 266198943Sluigi rule = (struct ip_fw *)rulebuf; 266298943Sluigi cmd = (ipfw_insn *)cmdbuf; 266398943Sluigi action = (ipfw_insn *)actbuf; 266498943Sluigi 2665204591Sluigi av++; 266698943Sluigi 266798943Sluigi /* [rule N] -- Rule number optional */ 2668204591Sluigi if (av[0] && isdigit(**av)) { 266998943Sluigi rule->rulenum = atoi(*av); 267098943Sluigi av++; 267198943Sluigi } 267298943Sluigi 2673117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 2674205631Sluigi if (av[0] && av[1] && _substrcmp(*av, "set") == 0) { 2675101628Sluigi int set = strtoul(av[1], NULL, 10); 2676117655Sluigi if (set < 0 || set > RESVD_SET) 2677101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 2678101628Sluigi rule->set = set; 2679204591Sluigi av += 2; 2680101628Sluigi } 2681101628Sluigi 268298943Sluigi /* [prob D] -- match probability, optional */ 2683204591Sluigi if (av[0] && av[1] && _substrcmp(*av, "prob") == 0) { 2684107289Sluigi match_prob = strtod(av[1], NULL); 268598943Sluigi 2686107289Sluigi if (match_prob <= 0 || match_prob > 1) 268798943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 2688204591Sluigi av += 2; 268998943Sluigi } 269098943Sluigi 269198943Sluigi /* action -- mandatory */ 269298943Sluigi NEED1("missing action"); 269398943Sluigi i = match_token(rule_actions, *av); 2694204591Sluigi av++; 269598943Sluigi action->len = 1; /* default */ 269698943Sluigi switch(i) { 269798943Sluigi case TOK_CHECKSTATE: 2698101116Sluigi have_state = action; 269998943Sluigi action->opcode = O_CHECK_STATE; 270098943Sluigi break; 270198943Sluigi 270298943Sluigi case TOK_ACCEPT: 270398943Sluigi action->opcode = O_ACCEPT; 270498943Sluigi break; 270598943Sluigi 270698943Sluigi case TOK_DENY: 270798943Sluigi action->opcode = O_DENY; 270899475Sluigi action->arg1 = 0; 270998943Sluigi break; 271098943Sluigi 271199475Sluigi case TOK_REJECT: 271299475Sluigi action->opcode = O_REJECT; 271399475Sluigi action->arg1 = ICMP_UNREACH_HOST; 271499475Sluigi break; 271599475Sluigi 271699475Sluigi case TOK_RESET: 271799475Sluigi action->opcode = O_REJECT; 271899475Sluigi action->arg1 = ICMP_REJECT_RST; 271999475Sluigi break; 272099475Sluigi 2721149020Sbz case TOK_RESET6: 2722149020Sbz action->opcode = O_UNREACH6; 2723149020Sbz action->arg1 = ICMP6_UNREACH_RST; 2724149020Sbz break; 2725149020Sbz 272699475Sluigi case TOK_UNREACH: 272799475Sluigi action->opcode = O_REJECT; 272899475Sluigi NEED1("missing reject code"); 272999475Sluigi fill_reject_code(&action->arg1, *av); 2730204591Sluigi av++; 273199475Sluigi break; 273299475Sluigi 2733149020Sbz case TOK_UNREACH6: 2734149020Sbz action->opcode = O_UNREACH6; 2735149020Sbz NEED1("missing unreach code"); 2736149020Sbz fill_unreach6_code(&action->arg1, *av); 2737204591Sluigi av++; 2738149020Sbz break; 2739149020Sbz 274098943Sluigi case TOK_COUNT: 274198943Sluigi action->opcode = O_COUNT; 274298943Sluigi break; 274398943Sluigi 2744176517Spiso case TOK_NAT: 2745223080Sae action->opcode = O_NAT; 2746223080Sae action->len = F_INSN_SIZE(ipfw_insn_nat); 2747223080Sae if (_substrcmp(*av, "global") == 0) { 2748223080Sae action->arg1 = 0; 2749223080Sae av++; 2750223080Sae break; 2751223080Sae } else 2752223080Sae goto chkarg; 2753178888Sjulian 275498943Sluigi case TOK_QUEUE: 2755153374Sglebius action->opcode = O_QUEUE; 2756153374Sglebius goto chkarg; 275798943Sluigi case TOK_PIPE: 2758153374Sglebius action->opcode = O_PIPE; 2759153374Sglebius goto chkarg; 276098943Sluigi case TOK_SKIPTO: 2761153374Sglebius action->opcode = O_SKIPTO; 2762153374Sglebius goto chkarg; 2763153374Sglebius case TOK_NETGRAPH: 2764153374Sglebius action->opcode = O_NETGRAPH; 2765153374Sglebius goto chkarg; 2766153374Sglebius case TOK_NGTEE: 2767153374Sglebius action->opcode = O_NGTEE; 2768153374Sglebius goto chkarg; 276998943Sluigi case TOK_DIVERT: 2770153374Sglebius action->opcode = O_DIVERT; 2771153374Sglebius goto chkarg; 277298943Sluigi case TOK_TEE: 2773153374Sglebius action->opcode = O_TEE; 2774220804Sglebiuschkarg: 2775204591Sluigi if (!av[0]) 2776153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 2777153374Sglebius if (isdigit(**av)) { 2778153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 2779153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 2780153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 2781153374Sglebius *(av - 1)); 2782187762Sluigi } else if (_substrcmp(*av, "tablearg") == 0) { 2783153374Sglebius action->arg1 = IP_FW_TABLEARG; 2784153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 278598943Sluigi struct servent *s; 278698943Sluigi setservent(1); 278798943Sluigi s = getservbyname(av[0], "divert"); 278898943Sluigi if (s != NULL) 278998943Sluigi action->arg1 = ntohs(s->s_port); 279098943Sluigi else 279198943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 2792153374Sglebius } else 2793153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 2794204591Sluigi av++; 279598943Sluigi break; 279698943Sluigi 279798943Sluigi case TOK_FORWARD: { 279898943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 279998943Sluigi char *s, *end; 280098943Sluigi 280198943Sluigi NEED1("missing forward address[:port]"); 280298943Sluigi 280398943Sluigi action->opcode = O_FORWARD_IP; 280498943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 280598943Sluigi 2806188005Sluigi /* 2807188005Sluigi * In the kernel we assume AF_INET and use only 2808200183Sluigi * sin_port and sin_addr. Remember to set sin_len as 2809200183Sluigi * the routing code seems to use it too. 2810188005Sluigi */ 281198943Sluigi p->sa.sin_family = AF_INET; 2812200183Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 281398943Sluigi p->sa.sin_port = 0; 281498943Sluigi /* 281598943Sluigi * locate the address-port separator (':' or ',') 281698943Sluigi */ 281798943Sluigi s = strchr(*av, ':'); 281898943Sluigi if (s == NULL) 281998943Sluigi s = strchr(*av, ','); 282098943Sluigi if (s != NULL) { 282198943Sluigi *(s++) = '\0'; 282298943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 282398943Sluigi if (s == end) 282498943Sluigi errx(EX_DATAERR, 282598943Sluigi "illegal forwarding port ``%s''", s); 2826103241Sluigi p->sa.sin_port = (u_short)i; 282798943Sluigi } 2828220802Sglebius if (_substrcmp(*av, "tablearg") == 0) 2829161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 2830161456Sjulian else 2831161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 2832204591Sluigi av++; 283398943Sluigi break; 2834161424Sjulian } 2835117469Sluigi case TOK_COMMENT: 2836117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 2837117469Sluigi action->opcode = O_COUNT; 2838204591Sluigi av--; /* go back... */ 2839117469Sluigi break; 2840178888Sjulian 2841178888Sjulian case TOK_SETFIB: 2842178888Sjulian { 2843178888Sjulian int numfibs; 2844178916Sjulian size_t intsize = sizeof(int); 2845178888Sjulian 2846178888Sjulian action->opcode = O_SETFIB; 2847222473Sae NEED1("missing fib number"); 2848222473Sae if (_substrcmp(*av, "tablearg") == 0) { 2849222473Sae action->arg1 = IP_FW_TABLEARG; 2850222473Sae } else { 2851222473Sae action->arg1 = strtoul(*av, NULL, 10); 2852222473Sae if (sysctlbyname("net.fibs", &numfibs, &intsize, 2853222473Sae NULL, 0) == -1) 2854222473Sae errx(EX_DATAERR, "fibs not suported.\n"); 2855222473Sae if (action->arg1 >= numfibs) /* Temporary */ 2856222473Sae errx(EX_DATAERR, "fib too large.\n"); 2857222473Sae } 2858222473Sae av++; 2859222473Sae break; 2860178888Sjulian } 2861190633Spiso 2862190633Spiso case TOK_REASS: 2863190633Spiso action->opcode = O_REASS; 2864190633Spiso break; 2865220804Sglebius 286698943Sluigi default: 2867102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 286898943Sluigi } 286998943Sluigi action = next_cmd(action); 287098943Sluigi 287198943Sluigi /* 2872136071Sgreen * [altq queuename] -- altq tag, optional 287398943Sluigi * [log [logamount N]] -- log, optional 287498943Sluigi * 2875136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 287698943Sluigi * skipped in the copy section to the end of the buffer. 287798943Sluigi */ 2878204591Sluigi while (av[0] != NULL && (i = match_token(rule_action_params, *av)) != -1) { 2879204591Sluigi av++; 2880136071Sgreen switch (i) { 2881136071Sgreen case TOK_LOG: 2882136071Sgreen { 2883136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 2884136071Sgreen int l; 288598943Sluigi 2886136071Sgreen if (have_log) 2887136071Sgreen errx(EX_DATAERR, 2888136071Sgreen "log cannot be specified more than once"); 2889136071Sgreen have_log = (ipfw_insn *)c; 2890136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 2891136071Sgreen cmd->opcode = O_LOG; 2892204591Sluigi if (av[0] && _substrcmp(*av, "logamount") == 0) { 2893204591Sluigi av++; 2894136071Sgreen NEED1("logamount requires argument"); 2895136071Sgreen l = atoi(*av); 2896136071Sgreen if (l < 0) 2897136071Sgreen errx(EX_DATAERR, 2898136071Sgreen "logamount must be positive"); 2899136071Sgreen c->max_log = l; 2900204591Sluigi av++; 2901136071Sgreen } else { 2902136071Sgreen len = sizeof(c->max_log); 2903136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 2904136071Sgreen &c->max_log, &len, NULL, 0) == -1) 2905136071Sgreen errx(1, "sysctlbyname(\"%s\")", 2906136071Sgreen "net.inet.ip.fw.verbose_limit"); 2907136071Sgreen } 2908136071Sgreen } 2909136071Sgreen break; 2910136071Sgreen 2911204591Sluigi#ifndef NO_ALTQ 2912136071Sgreen case TOK_ALTQ: 2913136071Sgreen { 2914136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 2915136071Sgreen 2916136071Sgreen NEED1("missing altq queue name"); 2917136071Sgreen if (have_altq) 2918136071Sgreen errx(EX_DATAERR, 2919136071Sgreen "altq cannot be specified more than once"); 2920136071Sgreen have_altq = (ipfw_insn *)a; 2921136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 2922136071Sgreen cmd->opcode = O_ALTQ; 2923187983Sluigi a->qid = altq_name_to_qid(*av); 2924204591Sluigi av++; 2925136071Sgreen } 2926136071Sgreen break; 2927204591Sluigi#endif 2928136071Sgreen 2929158879Soleg case TOK_TAG: 2930159636Soleg case TOK_UNTAG: { 2931159636Soleg uint16_t tag; 2932159636Soleg 2933158879Soleg if (have_tag) 2934159636Soleg errx(EX_USAGE, "tag and untag cannot be " 2935159636Soleg "specified more than once"); 2936193516Sluigi GET_UINT_ARG(tag, IPFW_ARG_MIN, IPFW_ARG_MAX, i, 2937182823Srik rule_action_params); 2938158879Soleg have_tag = cmd; 2939159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 2940204591Sluigi av++; 2941158879Soleg break; 2942159636Soleg } 2943158879Soleg 2944136071Sgreen default: 2945136071Sgreen abort(); 294698943Sluigi } 294798943Sluigi cmd = next_cmd(cmd); 294898943Sluigi } 294998943Sluigi 2950101116Sluigi if (have_state) /* must be a check-state, we are done */ 295198943Sluigi goto done; 295298943Sluigi 295398943Sluigi#define OR_START(target) \ 2954204591Sluigi if (av[0] && (*av[0] == '(' || *av[0] == '{')) { \ 295598943Sluigi if (open_par) \ 295698943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 2957101641Sluigi prev = NULL; \ 295898943Sluigi open_par = 1; \ 295998943Sluigi if ( (av[0])[1] == '\0') { \ 2960204591Sluigi av++; \ 296198943Sluigi } else \ 296298943Sluigi (*av)++; \ 296398943Sluigi } \ 296498943Sluigi target: \ 296598943Sluigi 296698943Sluigi 296798943Sluigi#define CLOSE_PAR \ 296898943Sluigi if (open_par) { \ 2969204591Sluigi if (av[0] && ( \ 2970140271Sbrooks strcmp(*av, ")") == 0 || \ 2971140271Sbrooks strcmp(*av, "}") == 0)) { \ 2972101641Sluigi prev = NULL; \ 297398943Sluigi open_par = 0; \ 2974204591Sluigi av++; \ 297598943Sluigi } else \ 297698943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 297798943Sluigi } 2978106505Smaxim 297998943Sluigi#define NOT_BLOCK \ 2980204591Sluigi if (av[0] && _substrcmp(*av, "not") == 0) { \ 298198943Sluigi if (cmd->len & F_NOT) \ 298298943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 298398943Sluigi cmd->len |= F_NOT; \ 2984204591Sluigi av++; \ 298598943Sluigi } 298698943Sluigi 298798943Sluigi#define OR_BLOCK(target) \ 2988204591Sluigi if (av[0] && _substrcmp(*av, "or") == 0) { \ 298998943Sluigi if (prev == NULL || open_par == 0) \ 299098943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 299198943Sluigi prev->len |= F_OR; \ 2992204591Sluigi av++; \ 299398943Sluigi goto target; \ 299498943Sluigi } \ 299598943Sluigi CLOSE_PAR; 299698943Sluigi 2997102087Sluigi first_cmd = cmd; 2998102098Sluigi 2999102098Sluigi#if 0 300098943Sluigi /* 3001102087Sluigi * MAC addresses, optional. 3002102087Sluigi * If we have this, we skip the part "proto from src to dst" 3003102087Sluigi * and jump straight to the option parsing. 3004102087Sluigi */ 3005102087Sluigi NOT_BLOCK; 3006102087Sluigi NEED1("missing protocol"); 3007140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 3008140271Sbrooks _substrcmp(*av, "mac") == 0) { 3009204591Sluigi av++; /* the "MAC" keyword */ 3010204591Sluigi add_mac(cmd, av); /* exits in case of errors */ 3011102087Sluigi cmd = next_cmd(cmd); 3012204591Sluigi av += 2; /* dst-mac and src-mac */ 3013102087Sluigi NOT_BLOCK; 3014102087Sluigi NEED1("missing mac type"); 3015204591Sluigi if (add_mactype(cmd, av[0])) 3016102087Sluigi cmd = next_cmd(cmd); 3017204591Sluigi av++; /* any or mac-type */ 3018102087Sluigi goto read_options; 3019102087Sluigi } 3020102098Sluigi#endif 3021102087Sluigi 3022102087Sluigi /* 302398943Sluigi * protocol, mandatory 302498943Sluigi */ 302598943Sluigi OR_START(get_proto); 302698943Sluigi NOT_BLOCK; 302798943Sluigi NEED1("missing protocol"); 3028152923Sume if (add_proto_compat(cmd, *av, &proto)) { 3029204591Sluigi av++; 3030147105Smlaier if (F_LEN(cmd) != 0) { 3031102087Sluigi prev = cmd; 3032102087Sluigi cmd = next_cmd(cmd); 3033102087Sluigi } 3034102098Sluigi } else if (first_cmd != cmd) { 3035116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 3036102098Sluigi } else 3037102098Sluigi goto read_options; 303898943Sluigi OR_BLOCK(get_proto); 303998943Sluigi 304098943Sluigi /* 3041102087Sluigi * "from", mandatory 304298943Sluigi */ 3043204591Sluigi if ((av[0] == NULL) || _substrcmp(*av, "from") != 0) 304498943Sluigi errx(EX_USAGE, "missing ``from''"); 3045204591Sluigi av++; 304698943Sluigi 304798943Sluigi /* 304898943Sluigi * source IP, mandatory 304998943Sluigi */ 305098943Sluigi OR_START(source_ip); 305198943Sluigi NOT_BLOCK; /* optional "not" */ 305298943Sluigi NEED1("missing source address"); 3053145246Sbrooks if (add_src(cmd, *av, proto)) { 3054204591Sluigi av++; 3055102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 3056102087Sluigi prev = cmd; 3057102087Sluigi cmd = next_cmd(cmd); 3058102087Sluigi } 3059145246Sbrooks } else 3060145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 306198943Sluigi OR_BLOCK(source_ip); 306298943Sluigi 306398943Sluigi /* 306498943Sluigi * source ports, optional 306598943Sluigi */ 306698943Sluigi NOT_BLOCK; /* optional "not" */ 3067204591Sluigi if ( av[0] != NULL ) { 3068140271Sbrooks if (_substrcmp(*av, "any") == 0 || 3069102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 3070204591Sluigi av++; 3071102087Sluigi if (F_LEN(cmd) != 0) 3072102087Sluigi cmd = next_cmd(cmd); 3073101641Sluigi } 307498943Sluigi } 307598943Sluigi 307698943Sluigi /* 3077102087Sluigi * "to", mandatory 307898943Sluigi */ 3079204591Sluigi if ( (av[0] == NULL) || _substrcmp(*av, "to") != 0 ) 308098943Sluigi errx(EX_USAGE, "missing ``to''"); 3081204591Sluigi av++; 308298943Sluigi 308398943Sluigi /* 308498943Sluigi * destination, mandatory 308598943Sluigi */ 308698943Sluigi OR_START(dest_ip); 308798943Sluigi NOT_BLOCK; /* optional "not" */ 308898943Sluigi NEED1("missing dst address"); 3089145246Sbrooks if (add_dst(cmd, *av, proto)) { 3090204591Sluigi av++; 3091102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 3092102087Sluigi prev = cmd; 3093102087Sluigi cmd = next_cmd(cmd); 3094102087Sluigi } 3095145246Sbrooks } else 3096145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 309798943Sluigi OR_BLOCK(dest_ip); 309898943Sluigi 309998943Sluigi /* 310098943Sluigi * dest. ports, optional 310198943Sluigi */ 310298943Sluigi NOT_BLOCK; /* optional "not" */ 3103204591Sluigi if (av[0]) { 3104140271Sbrooks if (_substrcmp(*av, "any") == 0 || 3105102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 3106204591Sluigi av++; 3107102087Sluigi if (F_LEN(cmd) != 0) 3108102087Sluigi cmd = next_cmd(cmd); 3109101641Sluigi } 311098943Sluigi } 311198943Sluigi 311298943Sluigiread_options: 3113204591Sluigi if (av[0] && first_cmd == cmd) { 3114102087Sluigi /* 3115102087Sluigi * nothing specified so far, store in the rule to ease 3116102087Sluigi * printout later. 3117102087Sluigi */ 3118102087Sluigi rule->_pad = 1; 3119102087Sluigi } 312098943Sluigi prev = NULL; 3121204591Sluigi while ( av[0] != NULL ) { 3122101641Sluigi char *s; 3123101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 312498943Sluigi 3125101641Sluigi s = *av; 3126101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 3127101641Sluigi 312898943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 312998943Sluigi if (cmd->len & F_NOT) 313098943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 313198943Sluigi cmd->len = F_NOT; 313298943Sluigi s++; 313398943Sluigi } 313498943Sluigi i = match_token(rule_options, s); 3135204591Sluigi av++; 313698943Sluigi switch(i) { 313798943Sluigi case TOK_NOT: 313898943Sluigi if (cmd->len & F_NOT) 313998943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 314098943Sluigi cmd->len = F_NOT; 314198943Sluigi break; 314298943Sluigi 314398943Sluigi case TOK_OR: 3144101641Sluigi if (open_par == 0 || prev == NULL) 314598943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 314698943Sluigi prev->len |= F_OR; 314798943Sluigi break; 3148101641Sluigi 3149101641Sluigi case TOK_STARTBRACE: 3150101641Sluigi if (open_par) 3151101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 3152101641Sluigi open_par = 1; 3153101641Sluigi break; 3154101641Sluigi 3155101641Sluigi case TOK_ENDBRACE: 3156101641Sluigi if (!open_par) 3157101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 3158101641Sluigi open_par = 0; 3159102087Sluigi prev = NULL; 3160220802Sglebius break; 3161101641Sluigi 316298943Sluigi case TOK_IN: 316398943Sluigi fill_cmd(cmd, O_IN, 0, 0); 316498943Sluigi break; 316598943Sluigi 316698943Sluigi case TOK_OUT: 316798943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 316898943Sluigi fill_cmd(cmd, O_IN, 0, 0); 316998943Sluigi break; 317098943Sluigi 3171136073Sgreen case TOK_DIVERTED: 3172136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 3173136073Sgreen break; 3174136073Sgreen 3175136073Sgreen case TOK_DIVERTEDLOOPBACK: 3176136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 3177136073Sgreen break; 3178136073Sgreen 3179136073Sgreen case TOK_DIVERTEDOUTPUT: 3180136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 3181136073Sgreen break; 3182136073Sgreen 318398943Sluigi case TOK_FRAG: 318498943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 318598943Sluigi break; 318698943Sluigi 318798943Sluigi case TOK_LAYER2: 318898943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 318998943Sluigi break; 319098943Sluigi 319198943Sluigi case TOK_XMIT: 319298943Sluigi case TOK_RECV: 319398943Sluigi case TOK_VIA: 319498943Sluigi NEED1("recv, xmit, via require interface name" 319598943Sluigi " or address"); 319698943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 3197204591Sluigi av++; 319898943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 319998943Sluigi break; 320098943Sluigi if (i == TOK_XMIT) 320198943Sluigi cmd->opcode = O_XMIT; 320298943Sluigi else if (i == TOK_RECV) 320398943Sluigi cmd->opcode = O_RECV; 320498943Sluigi else if (i == TOK_VIA) 320598943Sluigi cmd->opcode = O_VIA; 320698943Sluigi break; 320798943Sluigi 320899475Sluigi case TOK_ICMPTYPES: 320999475Sluigi NEED1("icmptypes requires list of types"); 321099475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 3211204591Sluigi av++; 321299475Sluigi break; 3213220804Sglebius 3214145246Sbrooks case TOK_ICMP6TYPES: 3215145246Sbrooks NEED1("icmptypes requires list of types"); 3216145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 3217204591Sluigi av++; 3218145246Sbrooks break; 321999475Sluigi 322098943Sluigi case TOK_IPTTL: 322198943Sluigi NEED1("ipttl requires TTL"); 3222116690Sluigi if (strpbrk(*av, "-,")) { 3223116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 3224116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 3225116690Sluigi } else 3226116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 3227204591Sluigi av++; 322898943Sluigi break; 322998943Sluigi 323098943Sluigi case TOK_IPID: 3231116690Sluigi NEED1("ipid requires id"); 3232116690Sluigi if (strpbrk(*av, "-,")) { 3233116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 3234116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 3235116690Sluigi } else 3236116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 3237204591Sluigi av++; 323898943Sluigi break; 323998943Sluigi 324098943Sluigi case TOK_IPLEN: 324198943Sluigi NEED1("iplen requires length"); 3242116690Sluigi if (strpbrk(*av, "-,")) { 3243116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 3244116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 3245116690Sluigi } else 3246116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 3247204591Sluigi av++; 324898943Sluigi break; 324998943Sluigi 325098943Sluigi case TOK_IPVER: 325198943Sluigi NEED1("ipver requires version"); 325298943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 3253204591Sluigi av++; 325498943Sluigi break; 325598943Sluigi 325699475Sluigi case TOK_IPPRECEDENCE: 325799475Sluigi NEED1("ipprecedence requires value"); 325899475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 325999475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 3260204591Sluigi av++; 326199475Sluigi break; 326299475Sluigi 326398943Sluigi case TOK_IPOPTS: 326498943Sluigi NEED1("missing argument for ipoptions"); 3265101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 3266204591Sluigi av++; 326798943Sluigi break; 326898943Sluigi 326999475Sluigi case TOK_IPTOS: 327099475Sluigi NEED1("missing argument for iptos"); 3271101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 3272204591Sluigi av++; 327399475Sluigi break; 327499475Sluigi 327598943Sluigi case TOK_UID: 327698943Sluigi NEED1("uid requires argument"); 327798943Sluigi { 327898943Sluigi char *end; 327998943Sluigi uid_t uid; 328098943Sluigi struct passwd *pwd; 328198943Sluigi 328298943Sluigi cmd->opcode = O_UID; 328398943Sluigi uid = strtoul(*av, &end, 0); 328498943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 328598943Sluigi if (pwd == NULL) 328698943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 3287106504Smaxim cmd32->d[0] = pwd->pw_uid; 3288135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 3289204591Sluigi av++; 329098943Sluigi } 329198943Sluigi break; 329298943Sluigi 329398943Sluigi case TOK_GID: 329498943Sluigi NEED1("gid requires argument"); 329598943Sluigi { 329698943Sluigi char *end; 329798943Sluigi gid_t gid; 329898943Sluigi struct group *grp; 329998943Sluigi 330098943Sluigi cmd->opcode = O_GID; 330198943Sluigi gid = strtoul(*av, &end, 0); 330298943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 330398943Sluigi if (grp == NULL) 330498943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 3305106504Smaxim cmd32->d[0] = grp->gr_gid; 3306135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 3307204591Sluigi av++; 330898943Sluigi } 330998943Sluigi break; 331098943Sluigi 3311133600Scsjp case TOK_JAIL: 3312133600Scsjp NEED1("jail requires argument"); 3313133600Scsjp { 3314133600Scsjp char *end; 3315133600Scsjp int jid; 3316133600Scsjp 3317133600Scsjp cmd->opcode = O_JAIL; 3318133600Scsjp jid = (int)strtol(*av, &end, 0); 3319133600Scsjp if (jid < 0 || *end != '\0') 3320133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 3321135554Scsjp cmd32->d[0] = (uint32_t)jid; 3322135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 3323204591Sluigi av++; 3324133600Scsjp } 3325133600Scsjp break; 3326133600Scsjp 332798943Sluigi case TOK_ESTAB: 332898943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 332998943Sluigi break; 333098943Sluigi 333198943Sluigi case TOK_SETUP: 333298943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 333398943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 333498943Sluigi break; 333598943Sluigi 3336136075Sgreen case TOK_TCPDATALEN: 3337136075Sgreen NEED1("tcpdatalen requires length"); 3338136075Sgreen if (strpbrk(*av, "-,")) { 3339136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 3340136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 3341136075Sgreen } else 3342136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 3343136075Sgreen strtoul(*av, NULL, 0)); 3344204591Sluigi av++; 3345136075Sgreen break; 3346136075Sgreen 334798943Sluigi case TOK_TCPOPTS: 334898943Sluigi NEED1("missing argument for tcpoptions"); 334998943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 3350204591Sluigi av++; 335198943Sluigi break; 335298943Sluigi 335398943Sluigi case TOK_TCPSEQ: 335498943Sluigi case TOK_TCPACK: 335598943Sluigi NEED1("tcpseq/tcpack requires argument"); 335698943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 335798943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 335898943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 3359204591Sluigi av++; 336098943Sluigi break; 336198943Sluigi 336298943Sluigi case TOK_TCPWIN: 336398943Sluigi NEED1("tcpwin requires length"); 336498943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 336598943Sluigi htons(strtoul(*av, NULL, 0))); 3366204591Sluigi av++; 336798943Sluigi break; 336898943Sluigi 336998943Sluigi case TOK_TCPFLAGS: 337098943Sluigi NEED1("missing argument for tcpflags"); 337198943Sluigi cmd->opcode = O_TCPFLAGS; 337298943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 3373204591Sluigi av++; 337498943Sluigi break; 337598943Sluigi 337698943Sluigi case TOK_KEEPSTATE: 3377101641Sluigi if (open_par) 3378101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 3379101641Sluigi "of an or block"); 338099909Sluigi if (have_state) 3381101116Sluigi errx(EX_USAGE, "only one of keep-state " 338299909Sluigi "and limit is allowed"); 3383101116Sluigi have_state = cmd; 338498943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 338598943Sluigi break; 338698943Sluigi 3387159636Soleg case TOK_LIMIT: { 3388159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 3389159636Soleg int val; 3390159636Soleg 3391101641Sluigi if (open_par) 3392159636Soleg errx(EX_USAGE, 3393159636Soleg "limit cannot be part of an or block"); 339499909Sluigi if (have_state) 3395168819Smaxim errx(EX_USAGE, "only one of keep-state and " 3396159636Soleg "limit is allowed"); 3397101116Sluigi have_state = cmd; 339898943Sluigi 339998943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 340098943Sluigi cmd->opcode = O_LIMIT; 3401159636Soleg c->limit_mask = c->conn_limit = 0; 340298943Sluigi 3403204591Sluigi while ( av[0] != NULL ) { 3404159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 340598943Sluigi break; 340698943Sluigi c->limit_mask |= val; 3407204591Sluigi av++; 340898943Sluigi } 3409159636Soleg 341098943Sluigi if (c->limit_mask == 0) 3411159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 3412159636Soleg 3413193516Sluigi GET_UINT_ARG(c->conn_limit, IPFW_ARG_MIN, IPFW_ARG_MAX, 3414182823Srik TOK_LIMIT, rule_options); 3415159636Soleg 3416204591Sluigi av++; 341798943Sluigi break; 3418159636Soleg } 341998943Sluigi 3420102087Sluigi case TOK_PROTO: 3421102087Sluigi NEED1("missing protocol"); 3422145246Sbrooks if (add_proto(cmd, *av, &proto)) { 3423204591Sluigi av++; 3424102098Sluigi } else 3425116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 3426116438Smaxim *av); 3427102087Sluigi break; 3428106505Smaxim 3429102087Sluigi case TOK_SRCIP: 3430102087Sluigi NEED1("missing source IP"); 3431102087Sluigi if (add_srcip(cmd, *av)) { 3432204591Sluigi av++; 3433102087Sluigi } 3434102087Sluigi break; 3435102087Sluigi 3436102087Sluigi case TOK_DSTIP: 3437102087Sluigi NEED1("missing destination IP"); 3438102087Sluigi if (add_dstip(cmd, *av)) { 3439204591Sluigi av++; 3440102087Sluigi } 3441102087Sluigi break; 3442102087Sluigi 3443145246Sbrooks case TOK_SRCIP6: 3444145246Sbrooks NEED1("missing source IP6"); 3445145246Sbrooks if (add_srcip6(cmd, *av)) { 3446204591Sluigi av++; 3447145246Sbrooks } 3448145246Sbrooks break; 3449220804Sglebius 3450145246Sbrooks case TOK_DSTIP6: 3451145246Sbrooks NEED1("missing destination IP6"); 3452145246Sbrooks if (add_dstip6(cmd, *av)) { 3453204591Sluigi av++; 3454145246Sbrooks } 3455145246Sbrooks break; 3456145246Sbrooks 3457102087Sluigi case TOK_SRCPORT: 3458102087Sluigi NEED1("missing source port"); 3459140271Sbrooks if (_substrcmp(*av, "any") == 0 || 3460102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 3461204591Sluigi av++; 3462102087Sluigi } else 3463102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 3464102087Sluigi break; 3465102087Sluigi 3466102087Sluigi case TOK_DSTPORT: 3467102087Sluigi NEED1("missing destination port"); 3468140271Sbrooks if (_substrcmp(*av, "any") == 0 || 3469102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 3470204591Sluigi av++; 3471102087Sluigi } else 3472102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 3473102087Sluigi *av); 3474102087Sluigi break; 3475102087Sluigi 3476102087Sluigi case TOK_MAC: 3477204591Sluigi if (add_mac(cmd, av)) 3478204591Sluigi av += 2; 3479102087Sluigi break; 3480102087Sluigi 3481102087Sluigi case TOK_MACTYPE: 3482102087Sluigi NEED1("missing mac type"); 3483204591Sluigi if (!add_mactype(cmd, *av)) 3484116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 3485204591Sluigi av++; 3486102087Sluigi break; 3487102087Sluigi 3488112250Scjc case TOK_VERREVPATH: 3489112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 3490112250Scjc break; 3491116919Sluigi 3492128575Sandre case TOK_VERSRCREACH: 3493128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 3494128575Sandre break; 3495128575Sandre 3496133387Sandre case TOK_ANTISPOOF: 3497133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 3498133387Sandre break; 3499133387Sandre 3500117241Sluigi case TOK_IPSEC: 3501117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 3502117241Sluigi break; 3503117241Sluigi 3504145246Sbrooks case TOK_IPV6: 3505145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 3506145246Sbrooks break; 3507145246Sbrooks 3508146894Smlaier case TOK_IPV4: 3509146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 3510146894Smlaier break; 3511146894Smlaier 3512145246Sbrooks case TOK_EXT6HDR: 3513145246Sbrooks fill_ext6hdr( cmd, *av ); 3514204591Sluigi av++; 3515145246Sbrooks break; 3516145246Sbrooks 3517145246Sbrooks case TOK_FLOWID: 3518145246Sbrooks if (proto != IPPROTO_IPV6 ) 3519145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 3520145246Sbrooks "only for ipv6 protocol\n"); 3521145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 3522204591Sluigi av++; 3523145246Sbrooks break; 3524145246Sbrooks 3525117469Sluigi case TOK_COMMENT: 3526204591Sluigi fill_comment(cmd, av); 3527204591Sluigi av[0]=NULL; 3528117469Sluigi break; 3529117469Sluigi 3530158879Soleg case TOK_TAGGED: 3531204591Sluigi if (av[0] && strpbrk(*av, "-,")) { 3532158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 3533159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 3534159636Soleg " list: %s", *av); 3535158879Soleg } 3536159636Soleg else { 3537159636Soleg uint16_t tag; 3538159636Soleg 3539193516Sluigi GET_UINT_ARG(tag, IPFW_ARG_MIN, IPFW_ARG_MAX, 3540182823Srik TOK_TAGGED, rule_options); 3541159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 3542159636Soleg } 3543204591Sluigi av++; 3544158879Soleg break; 3545158879Soleg 3546178888Sjulian case TOK_FIB: 3547178888Sjulian NEED1("fib requires fib number"); 3548178888Sjulian fill_cmd(cmd, O_FIB, 0, strtoul(*av, NULL, 0)); 3549204591Sluigi av++; 3550178888Sjulian break; 3551215179Sluigi case TOK_SOCKARG: 3552215179Sluigi fill_cmd(cmd, O_SOCKARG, 0, 0); 3553215179Sluigi break; 3554178888Sjulian 3555200567Sluigi case TOK_LOOKUP: { 3556200567Sluigi ipfw_insn_u32 *c = (ipfw_insn_u32 *)cmd; 3557200567Sluigi char *p; 3558200567Sluigi int j; 3559200567Sluigi 3560205169Sluigi if (!av[0] || !av[1]) 3561200567Sluigi errx(EX_USAGE, "format: lookup argument tablenum"); 3562200567Sluigi cmd->opcode = O_IP_DST_LOOKUP; 3563200567Sluigi cmd->len |= F_INSN_SIZE(ipfw_insn) + 2; 3564200567Sluigi i = match_token(rule_options, *av); 3565200567Sluigi for (j = 0; lookup_key[j] >= 0 ; j++) { 3566200567Sluigi if (i == lookup_key[j]) 3567200567Sluigi break; 3568200567Sluigi } 3569200567Sluigi if (lookup_key[j] <= 0) 3570200567Sluigi errx(EX_USAGE, "format: cannot lookup on %s", *av); 3571223262Sbenl __PAST_END(c->d, 1) = j; // i converted to option 3572204591Sluigi av++; 3573200567Sluigi cmd->arg1 = strtoul(*av, &p, 0); 3574200567Sluigi if (p && *p) 3575200567Sluigi errx(EX_USAGE, "format: lookup argument tablenum"); 3576204591Sluigi av++; 3577200567Sluigi } 3578200567Sluigi break; 3579200567Sluigi 358098943Sluigi default: 358198943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 358298943Sluigi } 358398943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 358498943Sluigi prev = cmd; 358598943Sluigi cmd = next_cmd(cmd); 358698943Sluigi } 358798943Sluigi } 358898943Sluigi 358998943Sluigidone: 359098943Sluigi /* 359198943Sluigi * Now copy stuff into the rule. 359298943Sluigi * If we have a keep-state option, the first instruction 359398943Sluigi * must be a PROBE_STATE (which is generated here). 359498943Sluigi * If we have a LOG option, it was stored as the first command, 359598943Sluigi * and now must be moved to the top of the action part. 359698943Sluigi */ 359798943Sluigi dst = (ipfw_insn *)rule->cmd; 359898943Sluigi 359998943Sluigi /* 3600107289Sluigi * First thing to write into the command stream is the match probability. 3601107289Sluigi */ 3602107289Sluigi if (match_prob != 1) { /* 1 means always match */ 3603107289Sluigi dst->opcode = O_PROB; 3604107289Sluigi dst->len = 2; 3605107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 3606107289Sluigi dst += dst->len; 3607107289Sluigi } 3608107289Sluigi 3609107289Sluigi /* 361098943Sluigi * generate O_PROBE_STATE if necessary 361198943Sluigi */ 3612101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 361398943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 361498943Sluigi dst = next_cmd(dst); 361598943Sluigi } 3616158879Soleg 3617158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 361898943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 361998943Sluigi i = F_LEN(src); 362098943Sluigi 3621101116Sluigi switch (src->opcode) { 3622101116Sluigi case O_LOG: 3623101116Sluigi case O_KEEP_STATE: 3624101116Sluigi case O_LIMIT: 3625136071Sgreen case O_ALTQ: 3626158879Soleg case O_TAG: 3627101116Sluigi break; 3628101116Sluigi default: 3629117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 363098943Sluigi dst += i; 363198943Sluigi } 363298943Sluigi } 363398943Sluigi 363498943Sluigi /* 3635101116Sluigi * put back the have_state command as last opcode 3636101116Sluigi */ 3637101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 3638101116Sluigi i = F_LEN(have_state); 3639117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 3640101116Sluigi dst += i; 3641101116Sluigi } 3642101116Sluigi /* 364398943Sluigi * start action section 364498943Sluigi */ 364598943Sluigi rule->act_ofs = dst - rule->cmd; 364698943Sluigi 3647158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 3648136071Sgreen if (have_log) { 3649136071Sgreen i = F_LEN(have_log); 3650136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 365198943Sluigi dst += i; 365298943Sluigi } 3653136071Sgreen if (have_altq) { 3654136071Sgreen i = F_LEN(have_altq); 3655136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 3656136071Sgreen dst += i; 3657136071Sgreen } 3658158879Soleg if (have_tag) { 3659158879Soleg i = F_LEN(have_tag); 3660158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 3661158879Soleg dst += i; 3662158879Soleg } 366398943Sluigi /* 366498943Sluigi * copy all other actions 366598943Sluigi */ 366698943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 366798943Sluigi i = F_LEN(src); 3668117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 366998943Sluigi dst += i; 367098943Sluigi } 367198943Sluigi 3672117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 3673117469Sluigi i = (char *)dst - (char *)rule; 3674119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 367598943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 3676187764Sluigi if (!co.do_quiet) 3677117469Sluigi show_ipfw(rule, 0, 0); 367898943Sluigi} 367998943Sluigi 3680187767Sluigi/* 3681187767Sluigi * clear the counters or the log counters. 3682187767Sluigi */ 3683187767Sluigivoid 3684187767Sluigiipfw_zero(int ac, char *av[], int optname /* 0 = IP_FW_ZERO, 1 = IP_FW_RESETLOG */) 368598943Sluigi{ 3686170923Smaxim uint32_t arg, saved_arg; 368798943Sluigi int failed = EX_OK; 3688170923Smaxim char const *errstr; 3689187767Sluigi char const *name = optname ? "RESETLOG" : "ZERO"; 369098943Sluigi 3691187767Sluigi optname = optname ? IP_FW_RESETLOG : IP_FW_ZERO; 3692187767Sluigi 369398943Sluigi av++; ac--; 369498943Sluigi 369598943Sluigi if (!ac) { 369698943Sluigi /* clear all entries */ 3697117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 3698117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 3699187764Sluigi if (!co.do_quiet) 3700117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 3701117328Sluigi "Accounting cleared":"Logging counts reset"); 370298943Sluigi 370398943Sluigi return; 370498943Sluigi } 370598943Sluigi 370698943Sluigi while (ac) { 370798943Sluigi /* Rule number */ 370898943Sluigi if (isdigit(**av)) { 3709170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 3710170923Smaxim if (errstr) 3711170923Smaxim errx(EX_DATAERR, 3712170923Smaxim "invalid rule number %s\n", *av); 3713170923Smaxim saved_arg = arg; 3714187764Sluigi if (co.use_set) 3715187764Sluigi arg |= (1 << 24) | ((co.use_set - 1) << 16); 371698943Sluigi av++; 371798943Sluigi ac--; 3718170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 3719117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 3720170923Smaxim saved_arg, name); 372198943Sluigi failed = EX_UNAVAILABLE; 3722187764Sluigi } else if (!co.do_quiet) 3723170923Smaxim printf("Entry %d %s.\n", saved_arg, 3724117328Sluigi optname == IP_FW_ZERO ? 3725117328Sluigi "cleared" : "logging count reset"); 372698943Sluigi } else { 372798943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 372898943Sluigi } 372998943Sluigi } 373098943Sluigi if (failed != EX_OK) 373198943Sluigi exit(failed); 373298943Sluigi} 373398943Sluigi 3734187767Sluigivoid 3735187767Sluigiipfw_flush(int force) 373698943Sluigi{ 3737187764Sluigi int cmd = co.do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 373898943Sluigi 3739187764Sluigi if (!force && !co.do_quiet) { /* need to ask user */ 374098943Sluigi int c; 374198943Sluigi 374298943Sluigi printf("Are you sure? [yn] "); 374398943Sluigi fflush(stdout); 374498943Sluigi do { 374598943Sluigi c = toupper(getc(stdin)); 374698943Sluigi while (c != '\n' && getc(stdin) != '\n') 374798943Sluigi if (feof(stdin)) 374898943Sluigi return; /* and do not flush */ 374998943Sluigi } while (c != 'Y' && c != 'N'); 375098943Sluigi printf("\n"); 375198943Sluigi if (c == 'N') /* user said no */ 375298943Sluigi return; 375398943Sluigi } 3754204591Sluigi if (co.do_pipe) { 3755204591Sluigi dummynet_flush(); 3756204591Sluigi return; 3757204591Sluigi } 3758170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 3759187764Sluigi if (co.use_set) { 3760187764Sluigi uint32_t arg = ((co.use_set - 1) & 0xffff) | (1 << 24); 3761170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 3762170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 3763170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 376498943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 3765187764Sluigi co.do_pipe ? "DUMMYNET" : "FW"); 3766187764Sluigi if (!co.do_quiet) 3767187764Sluigi printf("Flushed all %s.\n", co.do_pipe ? "pipes" : "rules"); 376898943Sluigi} 376998943Sluigi 3770117544Sluigi 3771183407Srikstatic void table_list(ipfw_table_entry ent, int need_header); 3772183228Srik 3773117544Sluigi/* 3774130281Sru * This one handles all table-related commands 3775130281Sru * ipfw table N add addr[/masklen] [value] 3776130281Sru * ipfw table N delete addr[/masklen] 3777183407Srik * ipfw table {N | all} flush 3778183407Srik * ipfw table {N | all} list 3779130281Sru */ 3780187767Sluigivoid 3781187767Sluigiipfw_table_handler(int ac, char *av[]) 3782130281Sru{ 3783130281Sru ipfw_table_entry ent; 3784130281Sru int do_add; 3785183407Srik int is_all; 3786183241Srik size_t len; 3787130281Sru char *p; 3788183407Srik uint32_t a; 3789183241Srik uint32_t tables_max; 3790130281Sru 3791183263Skeramida len = sizeof(tables_max); 3792183241Srik if (sysctlbyname("net.inet.ip.fw.tables_max", &tables_max, &len, 3793183241Srik NULL, 0) == -1) { 3794183241Srik#ifdef IPFW_TABLES_MAX 3795183241Srik warn("Warn: Failed to get the max tables number via sysctl. " 3796183241Srik "Using the compiled in defaults. \nThe reason was"); 3797183241Srik tables_max = IPFW_TABLES_MAX; 3798183241Srik#else 3799183241Srik errx(1, "Failed sysctlbyname(\"net.inet.ip.fw.tables_max\")"); 3800183241Srik#endif 3801183241Srik } 3802183241Srik 3803130281Sru ac--; av++; 3804130281Sru if (ac && isdigit(**av)) { 3805130281Sru ent.tbl = atoi(*av); 3806183407Srik is_all = 0; 3807130281Sru ac--; av++; 3808183407Srik } else if (ac && _substrcmp(*av, "all") == 0) { 3809183407Srik ent.tbl = 0; 3810183407Srik is_all = 1; 3811183407Srik ac--; av++; 3812130281Sru } else 3813183407Srik errx(EX_USAGE, "table number or 'all' keyword required"); 3814183241Srik if (ent.tbl >= tables_max) 3815183241Srik errx(EX_USAGE, "The table number exceeds the maximum allowed " 3816183241Srik "value (%d)", tables_max - 1); 3817130281Sru NEED1("table needs command"); 3818183407Srik if (is_all && _substrcmp(*av, "list") != 0 3819183407Srik && _substrcmp(*av, "flush") != 0) 3820183407Srik errx(EX_USAGE, "table number required"); 3821183407Srik 3822140271Sbrooks if (_substrcmp(*av, "add") == 0 || 3823140271Sbrooks _substrcmp(*av, "delete") == 0) { 3824130281Sru do_add = **av == 'a'; 3825130281Sru ac--; av++; 3826130281Sru if (!ac) 3827130281Sru errx(EX_USAGE, "IP address required"); 3828130281Sru p = strchr(*av, '/'); 3829130281Sru if (p) { 3830130281Sru *p++ = '\0'; 3831130281Sru ent.masklen = atoi(p); 3832130281Sru if (ent.masklen > 32) 3833130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 3834130281Sru } else 3835130281Sru ent.masklen = 32; 3836130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 3837130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 3838130281Sru ac--; av++; 3839161424Sjulian if (do_add && ac) { 3840161424Sjulian unsigned int tval; 3841161424Sjulian /* isdigit is a bit of a hack here.. */ 3842161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 3843161424Sjulian ent.value = strtoul(*av, NULL, 0); 3844161424Sjulian } else { 3845220802Sglebius if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 3846161424Sjulian /* The value must be stored in host order * 3847161424Sjulian * so that the values < 65k can be distinguished */ 3848220802Sglebius ent.value = ntohl(tval); 3849161424Sjulian } else { 3850161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 3851161424Sjulian } 3852161424Sjulian } 3853161424Sjulian } else 3854130281Sru ent.value = 0; 3855130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 3856157335Sjulian &ent, sizeof(ent)) < 0) { 3857155639Sjulian /* If running silent, don't bomb out on these errors. */ 3858187764Sluigi if (!(co.do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 3859155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 3860155639Sjulian do_add ? "ADD" : "DEL"); 3861155639Sjulian /* In silent mode, react to a failed add by deleting */ 3862157332Sjulian if (do_add) { 3863155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 3864155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 3865155639Sjulian &ent, sizeof(ent)) < 0) 3866155639Sjulian err(EX_OSERR, 3867220802Sglebius "setsockopt(IP_FW_TABLE_ADD)"); 3868157332Sjulian } 3869157335Sjulian } 3870140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 3871204591Sluigi a = is_all ? tables_max : (uint32_t)(ent.tbl + 1); 3872183407Srik do { 3873183407Srik if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, 3874183407Srik sizeof(ent.tbl)) < 0) 3875183407Srik err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 3876183407Srik } while (++ent.tbl < a); 3877140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 3878204591Sluigi a = is_all ? tables_max : (uint32_t)(ent.tbl + 1); 3879183407Srik do { 3880183415Srik table_list(ent, is_all); 3881183407Srik } while (++ent.tbl < a); 3882183228Srik } else 3883183228Srik errx(EX_USAGE, "invalid table command %s", *av); 3884183228Srik} 3885183205Srik 3886183228Srikstatic void 3887183407Sriktable_list(ipfw_table_entry ent, int need_header) 3888183228Srik{ 3889183228Srik ipfw_table *tbl; 3890183228Srik socklen_t l; 3891183228Srik uint32_t a; 3892183205Srik 3893183228Srik a = ent.tbl; 3894183228Srik l = sizeof(a); 3895183228Srik if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 3896183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 3897183228Srik 3898183228Srik /* If a is zero we have nothing to do, the table is empty. */ 3899183228Srik if (a == 0) 3900183228Srik return; 3901183228Srik 3902183228Srik l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 3903187716Sluigi tbl = safe_calloc(1, l); 3904183228Srik tbl->tbl = ent.tbl; 3905183228Srik if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 3906183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 3907183407Srik if (tbl->cnt && need_header) 3908183407Srik printf("---table(%d)---\n", tbl->tbl); 3909183228Srik for (a = 0; a < tbl->cnt; a++) { 3910183228Srik unsigned int tval; 3911183228Srik tval = tbl->ent[a].value; 3912187764Sluigi if (co.do_value_as_ip) { 3913183228Srik char tbuf[128]; 3914183228Srik strncpy(tbuf, inet_ntoa(*(struct in_addr *) 3915161456Sjulian &tbl->ent[a].addr), 127); 3916183228Srik /* inet_ntoa expects network order */ 3917183228Srik tval = htonl(tval); 3918183228Srik printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 3919183228Srik inet_ntoa(*(struct in_addr *)&tval)); 3920183228Srik } else { 3921183228Srik printf("%s/%u %u\n", 3922183228Srik inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 3923183228Srik tbl->ent[a].masklen, tval); 3924130281Sru } 3925183228Srik } 3926183228Srik free(tbl); 3927130281Sru} 3928