ipfw2.c revision 187716
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 187716 2009-01-26 14:26:35Z luigi $ 2198943Sluigi */ 2298943Sluigi 23187604Sluigi#include <sys/types.h> 2498943Sluigi#include <sys/socket.h> 2598943Sluigi#include <sys/sockio.h> 2698943Sluigi#include <sys/sysctl.h> 2798943Sluigi#include <sys/wait.h> 2898943Sluigi 2998943Sluigi#include <ctype.h> 3098943Sluigi#include <err.h> 3198943Sluigi#include <errno.h> 3298943Sluigi#include <grp.h> 3398943Sluigi#include <netdb.h> 3498943Sluigi#include <pwd.h> 3598943Sluigi#include <signal.h> 3698943Sluigi#include <stdio.h> 3798943Sluigi#include <stdlib.h> 3898943Sluigi#include <string.h> 3998943Sluigi#include <sysexits.h> 40187604Sluigi#include <timeconv.h> /* _long_to_time */ 41136071Sgreen#include <unistd.h> 42136071Sgreen#include <fcntl.h> 4398943Sluigi 44175659Srwatson#define IPFW_INTERNAL /* Access to protected structures in ip_fw.h. */ 45175659Srwatson 46169424Smaxim#include <net/ethernet.h> 4798943Sluigi#include <net/if.h> 48165648Spiso#include <net/if_dl.h> 49136071Sgreen#include <net/pfvar.h> 50145246Sbrooks#include <net/route.h> /* def. of struct route */ 5198943Sluigi#include <netinet/in.h> 5298943Sluigi#include <netinet/in_systm.h> 5398943Sluigi#include <netinet/ip.h> 5498943Sluigi#include <netinet/ip_icmp.h> 55145246Sbrooks#include <netinet/icmp6.h> 5698943Sluigi#include <netinet/ip_fw.h> 5798943Sluigi#include <netinet/ip_dummynet.h> 5898943Sluigi#include <netinet/tcp.h> 5998943Sluigi#include <arpa/inet.h> 60165648Spiso#include <alias.h> 6198943Sluigi 62117328Sluigiint 63176391Sjulian do_value_as_ip, /* show table value as IP */ 6498943Sluigi do_resolv, /* Would try to resolve all */ 6598943Sluigi do_time, /* Show time stamps */ 6698943Sluigi do_quiet, /* Be quiet in add and flush */ 6798943Sluigi do_pipe, /* this cmd refers to a pipe */ 68165648Spiso do_nat, /* Nat configuration. */ 6998943Sluigi do_sort, /* field to sort results (0 = no) */ 7098943Sluigi do_dynamic, /* display dynamic rules */ 7198943Sluigi do_expired, /* display expired dynamic rules */ 72102098Sluigi do_compact, /* show rules in compact mode */ 73123804Smaxim do_force, /* do not ask for confirmation */ 74170923Smaxim use_set, /* work with specified set number */ 75101628Sluigi show_sets, /* display rule sets */ 76117328Sluigi test_only, /* only check syntax */ 77123495Sluigi comment_only, /* only print action and comment */ 7898943Sluigi verbose; 7998943Sluigi 8098943Sluigi#define IP_MASK_ALL 0xffffffff 81130013Scsjp/* 82130013Scsjp * the following macro returns an error message if we run out of 83130013Scsjp * arguments. 84130013Scsjp */ 85130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 8698943Sluigi 87159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 88159636Soleg if (!ac) \ 89159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 90159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 91159636Soleg arg = IP_FW_TABLEARG; \ 92159636Soleg break; \ 93159636Soleg } \ 94159636Soleg \ 95159636Soleg { \ 96159636Soleg long val; \ 97159636Soleg char *end; \ 98159636Soleg \ 99159636Soleg val = strtol(*av, &end, 10); \ 100159636Soleg \ 101159636Soleg if (!isdigit(**av) || *end != '\0' || (val == 0 && errno == EINVAL)) \ 102159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 103159636Soleg match_value(s_x, tok), *av); \ 104159636Soleg \ 105159636Soleg if (errno == ERANGE || val < min || val > max) \ 106159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 107159636Soleg match_value(s_x, tok), min, max, *av); \ 108159636Soleg \ 109159636Soleg if (val == IP_FW_TABLEARG) \ 110159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 111159636Soleg match_value(s_x, tok), *av); \ 112159636Soleg arg = val; \ 113159636Soleg } \ 114158879Soleg} while (0) 115158879Soleg 116159636Soleg#define PRINT_UINT_ARG(str, arg) do { \ 117159636Soleg if (str != NULL) \ 118159636Soleg printf("%s",str); \ 119159636Soleg if (arg == IP_FW_TABLEARG) \ 120159636Soleg printf("tablearg"); \ 121159636Soleg else \ 122159636Soleg printf("%u", (uint32_t)arg); \ 123159636Soleg} while (0) 124159636Soleg 12598943Sluigi/* 126117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 127117328Sluigi * various places in the parser. Entries are stored in arrays, 128117328Sluigi * with an entry with s=NULL as terminator. 129117328Sluigi * The search routines are match_token() and match_value(). 130117328Sluigi * Often, an element with x=0 contains an error string. 13198943Sluigi * 13298943Sluigi */ 13398943Sluigistruct _s_x { 134117469Sluigi char const *s; 13598943Sluigi int x; 13698943Sluigi}; 13798943Sluigi 13898943Sluigistatic struct _s_x f_tcpflags[] = { 13998943Sluigi { "syn", TH_SYN }, 14098943Sluigi { "fin", TH_FIN }, 14198943Sluigi { "ack", TH_ACK }, 14298943Sluigi { "psh", TH_PUSH }, 14398943Sluigi { "rst", TH_RST }, 14498943Sluigi { "urg", TH_URG }, 14598943Sluigi { "tcp flag", 0 }, 14698943Sluigi { NULL, 0 } 14798943Sluigi}; 14898943Sluigi 14998943Sluigistatic struct _s_x f_tcpopts[] = { 15098943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 15198943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 15298943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 15398943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 15498943Sluigi { "ts", IP_FW_TCPOPT_TS }, 15598943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 15698943Sluigi { "cc", IP_FW_TCPOPT_CC }, 15798943Sluigi { "tcp option", 0 }, 15898943Sluigi { NULL, 0 } 15998943Sluigi}; 16098943Sluigi 16198943Sluigi/* 16298943Sluigi * IP options span the range 0 to 255 so we need to remap them 16398943Sluigi * (though in fact only the low 5 bits are significant). 16498943Sluigi */ 16598943Sluigistatic struct _s_x f_ipopts[] = { 16698943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 16798943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 16898943Sluigi { "rr", IP_FW_IPOPT_RR}, 16998943Sluigi { "ts", IP_FW_IPOPT_TS}, 17098943Sluigi { "ip option", 0 }, 17198943Sluigi { NULL, 0 } 17298943Sluigi}; 17398943Sluigi 17498943Sluigistatic struct _s_x f_iptos[] = { 17598943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 17698943Sluigi { "throughput", IPTOS_THROUGHPUT}, 17798943Sluigi { "reliability", IPTOS_RELIABILITY}, 17898943Sluigi { "mincost", IPTOS_MINCOST}, 179172801Srpaulo { "congestion", IPTOS_ECN_CE}, 180172801Srpaulo { "ecntransport", IPTOS_ECN_ECT0}, 18198943Sluigi { "ip tos option", 0}, 18298943Sluigi { NULL, 0 } 18398943Sluigi}; 18498943Sluigi 18598943Sluigistatic struct _s_x limit_masks[] = { 18698943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 18798943Sluigi {"src-addr", DYN_SRC_ADDR}, 18898943Sluigi {"src-port", DYN_SRC_PORT}, 18998943Sluigi {"dst-addr", DYN_DST_ADDR}, 19098943Sluigi {"dst-port", DYN_DST_PORT}, 19198943Sluigi {NULL, 0} 19298943Sluigi}; 19398943Sluigi 19498943Sluigi/* 19598943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 19698943Sluigi * This is only used in this code. 19798943Sluigi */ 19898943Sluigi#define IPPROTO_ETHERTYPE 0x1000 19998943Sluigistatic struct _s_x ether_types[] = { 20098943Sluigi /* 20198943Sluigi * Note, we cannot use "-:&/" in the names because they are field 20298943Sluigi * separators in the type specifications. Also, we use s = NULL as 20398943Sluigi * end-delimiter, because a type of 0 can be legal. 20498943Sluigi */ 20598943Sluigi { "ip", 0x0800 }, 20698943Sluigi { "ipv4", 0x0800 }, 20798943Sluigi { "ipv6", 0x86dd }, 20898943Sluigi { "arp", 0x0806 }, 20998943Sluigi { "rarp", 0x8035 }, 21098943Sluigi { "vlan", 0x8100 }, 21198943Sluigi { "loop", 0x9000 }, 21298943Sluigi { "trail", 0x1000 }, 21398943Sluigi { "at", 0x809b }, 21498943Sluigi { "atalk", 0x809b }, 21598943Sluigi { "aarp", 0x80f3 }, 21698943Sluigi { "pppoe_disc", 0x8863 }, 21798943Sluigi { "pppoe_sess", 0x8864 }, 21898943Sluigi { "ipx_8022", 0x00E0 }, 21998943Sluigi { "ipx_8023", 0x0000 }, 22098943Sluigi { "ipx_ii", 0x8137 }, 22198943Sluigi { "ipx_snap", 0x8137 }, 22298943Sluigi { "ipx", 0x8137 }, 22398943Sluigi { "ns", 0x0600 }, 22498943Sluigi { NULL, 0 } 22598943Sluigi}; 22698943Sluigi 22798943Sluigistatic void show_usage(void); 22898943Sluigi 22998943Sluigienum tokens { 23098943Sluigi TOK_NULL=0, 23198943Sluigi 23298943Sluigi TOK_OR, 23398943Sluigi TOK_NOT, 234101641Sluigi TOK_STARTBRACE, 235101641Sluigi TOK_ENDBRACE, 23698943Sluigi 23798943Sluigi TOK_ACCEPT, 23898943Sluigi TOK_COUNT, 23998943Sluigi TOK_PIPE, 24098943Sluigi TOK_QUEUE, 24198943Sluigi TOK_DIVERT, 24298943Sluigi TOK_TEE, 243141351Sglebius TOK_NETGRAPH, 244141351Sglebius TOK_NGTEE, 24598943Sluigi TOK_FORWARD, 24698943Sluigi TOK_SKIPTO, 24798943Sluigi TOK_DENY, 24898943Sluigi TOK_REJECT, 24998943Sluigi TOK_RESET, 25098943Sluigi TOK_UNREACH, 25198943Sluigi TOK_CHECKSTATE, 252165648Spiso TOK_NAT, 25398943Sluigi 254136071Sgreen TOK_ALTQ, 255136071Sgreen TOK_LOG, 256158879Soleg TOK_TAG, 257158879Soleg TOK_UNTAG, 258136071Sgreen 259158879Soleg TOK_TAGGED, 26098943Sluigi TOK_UID, 26198943Sluigi TOK_GID, 262133600Scsjp TOK_JAIL, 26398943Sluigi TOK_IN, 26498943Sluigi TOK_LIMIT, 26598943Sluigi TOK_KEEPSTATE, 26698943Sluigi TOK_LAYER2, 26798943Sluigi TOK_OUT, 268136073Sgreen TOK_DIVERTED, 269136073Sgreen TOK_DIVERTEDLOOPBACK, 270136073Sgreen TOK_DIVERTEDOUTPUT, 27198943Sluigi TOK_XMIT, 27298943Sluigi TOK_RECV, 27398943Sluigi TOK_VIA, 27498943Sluigi TOK_FRAG, 27598943Sluigi TOK_IPOPTS, 27698943Sluigi TOK_IPLEN, 27798943Sluigi TOK_IPID, 27898943Sluigi TOK_IPPRECEDENCE, 27998943Sluigi TOK_IPTOS, 28098943Sluigi TOK_IPTTL, 28198943Sluigi TOK_IPVER, 28298943Sluigi TOK_ESTAB, 28398943Sluigi TOK_SETUP, 284136075Sgreen TOK_TCPDATALEN, 28598943Sluigi TOK_TCPFLAGS, 28698943Sluigi TOK_TCPOPTS, 28798943Sluigi TOK_TCPSEQ, 28898943Sluigi TOK_TCPACK, 28998943Sluigi TOK_TCPWIN, 29098943Sluigi TOK_ICMPTYPES, 291102087Sluigi TOK_MAC, 292102087Sluigi TOK_MACTYPE, 293112250Scjc TOK_VERREVPATH, 294128575Sandre TOK_VERSRCREACH, 295133387Sandre TOK_ANTISPOOF, 296117241Sluigi TOK_IPSEC, 297117469Sluigi TOK_COMMENT, 29898943Sluigi 29998943Sluigi TOK_PLR, 300101978Sluigi TOK_NOERROR, 30198943Sluigi TOK_BUCKETS, 30298943Sluigi TOK_DSTIP, 30398943Sluigi TOK_SRCIP, 30498943Sluigi TOK_DSTPORT, 30598943Sluigi TOK_SRCPORT, 30698943Sluigi TOK_ALL, 30798943Sluigi TOK_MASK, 30898943Sluigi TOK_BW, 30998943Sluigi TOK_DELAY, 31098943Sluigi TOK_RED, 31198943Sluigi TOK_GRED, 31298943Sluigi TOK_DROPTAIL, 31398943Sluigi TOK_PROTO, 31498943Sluigi TOK_WEIGHT, 315165648Spiso TOK_IP, 316165648Spiso TOK_IF, 317165648Spiso TOK_ALOG, 318165648Spiso TOK_DENY_INC, 319165648Spiso TOK_SAME_PORTS, 320165648Spiso TOK_UNREG_ONLY, 321165648Spiso TOK_RESET_ADDR, 322165648Spiso TOK_ALIAS_REV, 323165648Spiso TOK_PROXY_ONLY, 324165648Spiso TOK_REDIR_ADDR, 325165648Spiso TOK_REDIR_PORT, 326165648Spiso TOK_REDIR_PROTO, 327145246Sbrooks 328145246Sbrooks TOK_IPV6, 329145246Sbrooks TOK_FLOWID, 330145246Sbrooks TOK_ICMP6TYPES, 331145246Sbrooks TOK_EXT6HDR, 332145246Sbrooks TOK_DSTIP6, 333145246Sbrooks TOK_SRCIP6, 334146894Smlaier 335146894Smlaier TOK_IPV4, 336149020Sbz TOK_UNREACH6, 337149020Sbz TOK_RESET6, 338178888Sjulian 339178888Sjulian TOK_FIB, 340178888Sjulian TOK_SETFIB, 34198943Sluigi}; 34298943Sluigi 34398943Sluigistruct _s_x dummynet_params[] = { 34498943Sluigi { "plr", TOK_PLR }, 345101978Sluigi { "noerror", TOK_NOERROR }, 34698943Sluigi { "buckets", TOK_BUCKETS }, 34798943Sluigi { "dst-ip", TOK_DSTIP }, 34898943Sluigi { "src-ip", TOK_SRCIP }, 34998943Sluigi { "dst-port", TOK_DSTPORT }, 35098943Sluigi { "src-port", TOK_SRCPORT }, 35198943Sluigi { "proto", TOK_PROTO }, 35298943Sluigi { "weight", TOK_WEIGHT }, 35398943Sluigi { "all", TOK_ALL }, 35498943Sluigi { "mask", TOK_MASK }, 35598943Sluigi { "droptail", TOK_DROPTAIL }, 35698943Sluigi { "red", TOK_RED }, 35798943Sluigi { "gred", TOK_GRED }, 35898943Sluigi { "bw", TOK_BW }, 35998943Sluigi { "bandwidth", TOK_BW }, 36098943Sluigi { "delay", TOK_DELAY }, 36199475Sluigi { "pipe", TOK_PIPE }, 36298943Sluigi { "queue", TOK_QUEUE }, 363145246Sbrooks { "flow-id", TOK_FLOWID}, 364145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 365145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 366145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 367145246Sbrooks { "src-ip6", TOK_SRCIP6}, 36898943Sluigi { "dummynet-params", TOK_NULL }, 369117328Sluigi { NULL, 0 } /* terminator */ 37098943Sluigi}; 37198943Sluigi 372165648Spisostruct _s_x nat_params[] = { 373165648Spiso { "ip", TOK_IP }, 374165648Spiso { "if", TOK_IF }, 375165648Spiso { "log", TOK_ALOG }, 376165648Spiso { "deny_in", TOK_DENY_INC }, 377165648Spiso { "same_ports", TOK_SAME_PORTS }, 378165648Spiso { "unreg_only", TOK_UNREG_ONLY }, 379165648Spiso { "reset", TOK_RESET_ADDR }, 380165648Spiso { "reverse", TOK_ALIAS_REV }, 381165648Spiso { "proxy_only", TOK_PROXY_ONLY }, 382165648Spiso { "redirect_addr", TOK_REDIR_ADDR }, 383165648Spiso { "redirect_port", TOK_REDIR_PORT }, 384165648Spiso { "redirect_proto", TOK_REDIR_PROTO }, 385165648Spiso { NULL, 0 } /* terminator */ 386165648Spiso}; 387165648Spiso 38898943Sluigistruct _s_x rule_actions[] = { 38998943Sluigi { "accept", TOK_ACCEPT }, 39098943Sluigi { "pass", TOK_ACCEPT }, 39198943Sluigi { "allow", TOK_ACCEPT }, 39298943Sluigi { "permit", TOK_ACCEPT }, 39398943Sluigi { "count", TOK_COUNT }, 39498943Sluigi { "pipe", TOK_PIPE }, 39598943Sluigi { "queue", TOK_QUEUE }, 39698943Sluigi { "divert", TOK_DIVERT }, 39798943Sluigi { "tee", TOK_TEE }, 398141351Sglebius { "netgraph", TOK_NETGRAPH }, 399141351Sglebius { "ngtee", TOK_NGTEE }, 40098943Sluigi { "fwd", TOK_FORWARD }, 40198943Sluigi { "forward", TOK_FORWARD }, 40298943Sluigi { "skipto", TOK_SKIPTO }, 40398943Sluigi { "deny", TOK_DENY }, 40498943Sluigi { "drop", TOK_DENY }, 40598943Sluigi { "reject", TOK_REJECT }, 406149020Sbz { "reset6", TOK_RESET6 }, 40798943Sluigi { "reset", TOK_RESET }, 408149020Sbz { "unreach6", TOK_UNREACH6 }, 40999475Sluigi { "unreach", TOK_UNREACH }, 41098943Sluigi { "check-state", TOK_CHECKSTATE }, 411117469Sluigi { "//", TOK_COMMENT }, 412165648Spiso { "nat", TOK_NAT }, 413178888Sjulian { "setfib", TOK_SETFIB }, 414117328Sluigi { NULL, 0 } /* terminator */ 41598943Sluigi}; 41698943Sluigi 417136071Sgreenstruct _s_x rule_action_params[] = { 418136071Sgreen { "altq", TOK_ALTQ }, 419136071Sgreen { "log", TOK_LOG }, 420158879Soleg { "tag", TOK_TAG }, 421158879Soleg { "untag", TOK_UNTAG }, 422136071Sgreen { NULL, 0 } /* terminator */ 423136071Sgreen}; 424136071Sgreen 42598943Sluigistruct _s_x rule_options[] = { 426158879Soleg { "tagged", TOK_TAGGED }, 42798943Sluigi { "uid", TOK_UID }, 42898943Sluigi { "gid", TOK_GID }, 429133600Scsjp { "jail", TOK_JAIL }, 43098943Sluigi { "in", TOK_IN }, 43198943Sluigi { "limit", TOK_LIMIT }, 43298943Sluigi { "keep-state", TOK_KEEPSTATE }, 43398943Sluigi { "bridged", TOK_LAYER2 }, 43498943Sluigi { "layer2", TOK_LAYER2 }, 43598943Sluigi { "out", TOK_OUT }, 436136073Sgreen { "diverted", TOK_DIVERTED }, 437136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 438136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 43998943Sluigi { "xmit", TOK_XMIT }, 44098943Sluigi { "recv", TOK_RECV }, 44198943Sluigi { "via", TOK_VIA }, 44298943Sluigi { "fragment", TOK_FRAG }, 44398943Sluigi { "frag", TOK_FRAG }, 444178888Sjulian { "fib", TOK_FIB }, 44598943Sluigi { "ipoptions", TOK_IPOPTS }, 44698943Sluigi { "ipopts", TOK_IPOPTS }, 44798943Sluigi { "iplen", TOK_IPLEN }, 44898943Sluigi { "ipid", TOK_IPID }, 44998943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 45098943Sluigi { "iptos", TOK_IPTOS }, 45198943Sluigi { "ipttl", TOK_IPTTL }, 45298943Sluigi { "ipversion", TOK_IPVER }, 45398943Sluigi { "ipver", TOK_IPVER }, 45498943Sluigi { "estab", TOK_ESTAB }, 45598943Sluigi { "established", TOK_ESTAB }, 45698943Sluigi { "setup", TOK_SETUP }, 457136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 45898943Sluigi { "tcpflags", TOK_TCPFLAGS }, 45998943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 46098943Sluigi { "tcpoptions", TOK_TCPOPTS }, 46198943Sluigi { "tcpopts", TOK_TCPOPTS }, 46298943Sluigi { "tcpseq", TOK_TCPSEQ }, 46398943Sluigi { "tcpack", TOK_TCPACK }, 46498943Sluigi { "tcpwin", TOK_TCPWIN }, 46599909Sluigi { "icmptype", TOK_ICMPTYPES }, 46698943Sluigi { "icmptypes", TOK_ICMPTYPES }, 467102087Sluigi { "dst-ip", TOK_DSTIP }, 468102087Sluigi { "src-ip", TOK_SRCIP }, 469102087Sluigi { "dst-port", TOK_DSTPORT }, 470102087Sluigi { "src-port", TOK_SRCPORT }, 471102087Sluigi { "proto", TOK_PROTO }, 472102087Sluigi { "MAC", TOK_MAC }, 473102087Sluigi { "mac", TOK_MAC }, 474102087Sluigi { "mac-type", TOK_MACTYPE }, 475112250Scjc { "verrevpath", TOK_VERREVPATH }, 476128575Sandre { "versrcreach", TOK_VERSRCREACH }, 477133387Sandre { "antispoof", TOK_ANTISPOOF }, 478117241Sluigi { "ipsec", TOK_IPSEC }, 479145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 480145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 481145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 482145246Sbrooks { "flow-id", TOK_FLOWID}, 483145246Sbrooks { "ipv6", TOK_IPV6}, 484145246Sbrooks { "ip6", TOK_IPV6}, 485146894Smlaier { "ipv4", TOK_IPV4}, 486146894Smlaier { "ip4", TOK_IPV4}, 487145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 488145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 489145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 490145246Sbrooks { "src-ip6", TOK_SRCIP6}, 491117469Sluigi { "//", TOK_COMMENT }, 49298943Sluigi 49398943Sluigi { "not", TOK_NOT }, /* pseudo option */ 49498943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 49598943Sluigi { "or", TOK_OR }, /* pseudo option */ 49698943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 497101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 498101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 499101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 500101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 501117328Sluigi { NULL, 0 } /* terminator */ 50298943Sluigi}; 50398943Sluigi 504153374Sglebius#define TABLEARG "tablearg" 505153374Sglebius 506117328Sluigistatic __inline uint64_t 507117328Sluigialign_uint64(uint64_t *pll) { 508117328Sluigi uint64_t ret; 509115793Sticso 510115793Sticso bcopy (pll, &ret, sizeof(ret)); 511115793Sticso return ret; 512129389Sstefanf} 513115793Sticso 514187716Sluigistatic void * 515187716Sluigisafe_calloc(size_t number, size_t size) 516187716Sluigi{ 517187716Sluigi void *ret = calloc(number, size); 518187716Sluigi 519187716Sluigi if (ret == NULL) 520187716Sluigi err(EX_OSERR, "calloc"); 521187716Sluigi return ret; 522187716Sluigi} 523187716Sluigi 524187716Sluigistatic void * 525187716Sluigisafe_realloc(void *ptr, size_t size) 526187716Sluigi{ 527187716Sluigi void *ret = realloc(ptr, size); 528187716Sluigi 529187716Sluigi if (ret == NULL) 530187716Sluigi err(EX_OSERR, "realloc"); 531187716Sluigi return ret; 532187716Sluigi} 533187716Sluigi 534117328Sluigi/* 535117328Sluigi * conditionally runs the command. 536117328Sluigi */ 537117469Sluigistatic int 538119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 539117328Sluigi{ 540117328Sluigi static int s = -1; /* the socket */ 541117328Sluigi int i; 542117577Sluigi 543117328Sluigi if (test_only) 544117328Sluigi return 0; 545117328Sluigi 546117328Sluigi if (s == -1) 547117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 548117328Sluigi if (s < 0) 549117328Sluigi err(EX_UNAVAILABLE, "socket"); 550117328Sluigi 551117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 552130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 553165648Spiso optname == IP_FW_TABLE_GETSIZE || 554165648Spiso optname == IP_FW_NAT_GET_CONFIG || 555165648Spiso optname == IP_FW_NAT_GET_LOG) 556117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 557117328Sluigi (socklen_t *)optlen); 558117328Sluigi else 559117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 560117328Sluigi return i; 561117328Sluigi} 562117328Sluigi 56398943Sluigi/** 56498943Sluigi * match_token takes a table and a string, returns the value associated 565117328Sluigi * with the string (-1 in case of failure). 56698943Sluigi */ 56798943Sluigistatic int 56898943Sluigimatch_token(struct _s_x *table, char *string) 56998943Sluigi{ 57098943Sluigi struct _s_x *pt; 571117469Sluigi uint i = strlen(string); 57298943Sluigi 57398943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 57498943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 57598943Sluigi return pt->x; 57698943Sluigi return -1; 577129389Sstefanf} 57898943Sluigi 579117328Sluigi/** 580117328Sluigi * match_value takes a table and a value, returns the string associated 581117328Sluigi * with the value (NULL in case of failure). 582117328Sluigi */ 583117469Sluigistatic char const * 584117469Sluigimatch_value(struct _s_x *p, int value) 58598943Sluigi{ 58698943Sluigi for (; p->s != NULL; p++) 58798943Sluigi if (p->x == value) 58898943Sluigi return p->s; 58998943Sluigi return NULL; 59098943Sluigi} 59198943Sluigi 59298943Sluigi/* 593140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 594140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 595140271Sbrooks * of the second. A warning is printed to stderr in the case that the 596140271Sbrooks * first string is a sub-string of the second. 597140271Sbrooks * 598140271Sbrooks * This function will be removed in the future through the usual 599140271Sbrooks * deprecation process. 600140271Sbrooks */ 601140271Sbrooksstatic int 602140271Sbrooks_substrcmp(const char *str1, const char* str2) 603140271Sbrooks{ 604140271Sbrooks 605140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 606140271Sbrooks return 1; 607140271Sbrooks 608140271Sbrooks if (strlen(str1) != strlen(str2)) 609140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 610140271Sbrooks str1, str2); 611140271Sbrooks return 0; 612140271Sbrooks} 613140271Sbrooks 614140271Sbrooks/* 615140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 616140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 617140271Sbrooks * of the first. A warning is printed to stderr in the case that the 618140271Sbrooks * first string does not match the third. 619140271Sbrooks * 620140271Sbrooks * This function exists to warn about the bizzare construction 621140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 622140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 623140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 624140271Sbrooks * other string beginning with "by". 625140271Sbrooks * 626140271Sbrooks * This function will be removed in the future through the usual 627140271Sbrooks * deprecation process. 628140271Sbrooks */ 629140271Sbrooksstatic int 630140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 631140271Sbrooks{ 632140271Sbrooks 633140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 634140271Sbrooks return 1; 635140271Sbrooks 636140271Sbrooks if (strcmp(str1, str3) != 0) 637140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 638140271Sbrooks str1, str3); 639140271Sbrooks return 0; 640140271Sbrooks} 641140271Sbrooks 642140271Sbrooks/* 64398943Sluigi * prints one port, symbolic or numeric 64498943Sluigi */ 64598943Sluigistatic void 646117328Sluigiprint_port(int proto, uint16_t port) 64798943Sluigi{ 64898943Sluigi 64998943Sluigi if (proto == IPPROTO_ETHERTYPE) { 650117469Sluigi char const *s; 65198943Sluigi 65298943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 65398943Sluigi printf("%s", s); 65498943Sluigi else 65598943Sluigi printf("0x%04x", port); 65698943Sluigi } else { 65798943Sluigi struct servent *se = NULL; 65898943Sluigi if (do_resolv) { 65998943Sluigi struct protoent *pe = getprotobynumber(proto); 66098943Sluigi 66198943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 66298943Sluigi } 66398943Sluigi if (se) 66498943Sluigi printf("%s", se->s_name); 66598943Sluigi else 66698943Sluigi printf("%d", port); 66798943Sluigi } 66898943Sluigi} 66998943Sluigi 670117328Sluigistruct _s_x _port_name[] = { 671117328Sluigi {"dst-port", O_IP_DSTPORT}, 672117328Sluigi {"src-port", O_IP_SRCPORT}, 673117328Sluigi {"ipid", O_IPID}, 674117328Sluigi {"iplen", O_IPLEN}, 675117328Sluigi {"ipttl", O_IPTTL}, 676117328Sluigi {"mac-type", O_MAC_TYPE}, 677136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 678158879Soleg {"tagged", O_TAGGED}, 679117328Sluigi {NULL, 0} 680117328Sluigi}; 681117328Sluigi 68298943Sluigi/* 683117328Sluigi * Print the values in a list 16-bit items of the types above. 68498943Sluigi * XXX todo: add support for mask. 68598943Sluigi */ 68698943Sluigistatic void 687102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 68898943Sluigi{ 689117328Sluigi uint16_t *p = cmd->ports; 69098943Sluigi int i; 691117469Sluigi char const *sep; 69298943Sluigi 693116690Sluigi if (opcode != 0) { 694117328Sluigi sep = match_value(_port_name, opcode); 695117328Sluigi if (sep == NULL) 696116690Sluigi sep = "???"; 697116690Sluigi printf (" %s", sep); 698116690Sluigi } 699116690Sluigi sep = " "; 70098943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 70198943Sluigi printf(sep); 70298943Sluigi print_port(proto, p[0]); 70398943Sluigi if (p[0] != p[1]) { 70498943Sluigi printf("-"); 70598943Sluigi print_port(proto, p[1]); 70698943Sluigi } 70798943Sluigi sep = ","; 70898943Sluigi } 70998943Sluigi} 71098943Sluigi 71198943Sluigi/* 71298943Sluigi * Like strtol, but also translates service names into port numbers 71398943Sluigi * for some protocols. 71498943Sluigi * In particular: 71598943Sluigi * proto == -1 disables the protocol check; 71698943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 71798943Sluigi * proto == <some value in /etc/protocols> matches the values there. 718101628Sluigi * Returns *end == s in case the parameter is not found. 71998943Sluigi */ 72098943Sluigistatic int 72198943Sluigistrtoport(char *s, char **end, int base, int proto) 72298943Sluigi{ 723101628Sluigi char *p, *buf; 724101628Sluigi char *s1; 72598943Sluigi int i; 72698943Sluigi 727101628Sluigi *end = s; /* default - not found */ 728117577Sluigi if (*s == '\0') 729101628Sluigi return 0; /* not found */ 730106505Smaxim 73198943Sluigi if (isdigit(*s)) 73298943Sluigi return strtol(s, end, base); 73398943Sluigi 73498943Sluigi /* 735101628Sluigi * find separator. '\\' escapes the next char. 73698943Sluigi */ 737101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 738101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 739101628Sluigi s1++; 74098943Sluigi 741187716Sluigi buf = safe_calloc(s1 - s + 1, 1); 742101628Sluigi 743101628Sluigi /* 744101628Sluigi * copy into a buffer skipping backslashes 745101628Sluigi */ 746101628Sluigi for (p = s, i = 0; p != s1 ; p++) 747117577Sluigi if (*p != '\\') 748101628Sluigi buf[i++] = *p; 749101628Sluigi buf[i++] = '\0'; 750101628Sluigi 75198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 752101628Sluigi i = match_token(ether_types, buf); 753101628Sluigi free(buf); 754101628Sluigi if (i != -1) { /* found */ 75598943Sluigi *end = s1; 75698943Sluigi return i; 75798943Sluigi } 75898943Sluigi } else { 75998943Sluigi struct protoent *pe = NULL; 76098943Sluigi struct servent *se; 76198943Sluigi 76298943Sluigi if (proto != 0) 76398943Sluigi pe = getprotobynumber(proto); 76498943Sluigi setservent(1); 765101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 766101628Sluigi free(buf); 76798943Sluigi if (se != NULL) { 76898943Sluigi *end = s1; 76998943Sluigi return ntohs(se->s_port); 77098943Sluigi } 77198943Sluigi } 772101628Sluigi return 0; /* not found */ 77398943Sluigi} 77498943Sluigi 77598943Sluigi/* 776136071Sgreen * Map between current altq queue id numbers and names. 777136071Sgreen */ 778136071Sgreenstatic int altq_fetched = 0; 779136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 780136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 781136071Sgreen 782136071Sgreenstatic void 783136071Sgreenaltq_set_enabled(int enabled) 784136071Sgreen{ 785136071Sgreen int pffd; 786136071Sgreen 787136071Sgreen pffd = open("/dev/pf", O_RDWR); 788136071Sgreen if (pffd == -1) 789136071Sgreen err(EX_UNAVAILABLE, 790136071Sgreen "altq support opening pf(4) control device"); 791136071Sgreen if (enabled) { 792136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 793136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 794136071Sgreen } else { 795136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 796136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 797136071Sgreen } 798136071Sgreen close(pffd); 799136071Sgreen} 800136071Sgreen 801136071Sgreenstatic void 802187477Sluigialtq_fetch(void) 803136071Sgreen{ 804136071Sgreen struct pfioc_altq pfioc; 805136071Sgreen struct pf_altq *altq; 806187477Sluigi int pffd; 807187477Sluigi unsigned int mnr; 808136071Sgreen 809136071Sgreen if (altq_fetched) 810136071Sgreen return; 811136071Sgreen altq_fetched = 1; 812136071Sgreen pffd = open("/dev/pf", O_RDONLY); 813136071Sgreen if (pffd == -1) { 814136071Sgreen warn("altq support opening pf(4) control device"); 815136071Sgreen return; 816136071Sgreen } 817136071Sgreen bzero(&pfioc, sizeof(pfioc)); 818136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 819136071Sgreen warn("altq support getting queue list"); 820136071Sgreen close(pffd); 821136071Sgreen return; 822136071Sgreen } 823136071Sgreen mnr = pfioc.nr; 824136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 825136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 826136071Sgreen if (errno == EBUSY) 827136071Sgreen break; 828136071Sgreen warn("altq support getting queue list"); 829136071Sgreen close(pffd); 830136071Sgreen return; 831136071Sgreen } 832136071Sgreen if (pfioc.altq.qid == 0) 833136071Sgreen continue; 834187716Sluigi altq = safe_calloc(1, sizeof(*altq)); 835136071Sgreen *altq = pfioc.altq; 836136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 837136071Sgreen } 838136071Sgreen close(pffd); 839136071Sgreen} 840136071Sgreen 841136071Sgreenstatic u_int32_t 842136071Sgreenaltq_name_to_qid(const char *name) 843136071Sgreen{ 844136071Sgreen struct pf_altq *altq; 845136071Sgreen 846136071Sgreen altq_fetch(); 847136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 848136071Sgreen if (strcmp(name, altq->qname) == 0) 849136071Sgreen break; 850136071Sgreen if (altq == NULL) 851136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 852136071Sgreen return altq->qid; 853136071Sgreen} 854136071Sgreen 855136071Sgreenstatic const char * 856136071Sgreenaltq_qid_to_name(u_int32_t qid) 857136071Sgreen{ 858136071Sgreen struct pf_altq *altq; 859136071Sgreen 860136071Sgreen altq_fetch(); 861136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 862136071Sgreen if (qid == altq->qid) 863136071Sgreen break; 864136071Sgreen if (altq == NULL) 865136071Sgreen return NULL; 866136071Sgreen return altq->qname; 867136071Sgreen} 868136071Sgreen 869136071Sgreenstatic void 870136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 871136071Sgreen{ 872136071Sgreen *qid = altq_name_to_qid(av); 873136071Sgreen} 874136071Sgreen 875136071Sgreen/* 876117328Sluigi * Fill the body of the command with the list of port ranges. 87798943Sluigi */ 87898943Sluigistatic int 87998943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 88098943Sluigi{ 881117328Sluigi uint16_t a, b, *p = cmd->ports; 88298943Sluigi int i = 0; 883102087Sluigi char *s = av; 88498943Sluigi 885102087Sluigi while (*s) { 88698943Sluigi a = strtoport(av, &s, 0, proto); 887159636Soleg if (s == av) /* empty or invalid argument */ 888159636Soleg return (0); 889159636Soleg 890159636Soleg switch (*s) { 891159636Soleg case '-': /* a range */ 892159636Soleg av = s + 1; 89398943Sluigi b = strtoport(av, &s, 0, proto); 894159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 895159636Soleg if (s == av || (*s != ',' && *s != '\0')) 896159636Soleg return (0); 89798943Sluigi p[0] = a; 89898943Sluigi p[1] = b; 899159636Soleg break; 900159636Soleg case ',': /* comma separated list */ 901159636Soleg case '\0': 90298943Sluigi p[0] = p[1] = a; 903159636Soleg break; 904159636Soleg default: 905159636Soleg warnx("port list: invalid separator <%c> in <%s>", 906101978Sluigi *s, av); 907159636Soleg return (0); 908159636Soleg } 909159636Soleg 910102087Sluigi i++; 911102087Sluigi p += 2; 912159636Soleg av = s + 1; 91398943Sluigi } 91498943Sluigi if (i > 0) { 915159636Soleg if (i + 1 > F_LEN_MASK) 916102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 917159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 91898943Sluigi } 919159636Soleg return (i); 92098943Sluigi} 92198943Sluigi 92298943Sluigistatic struct _s_x icmpcodes[] = { 92398943Sluigi { "net", ICMP_UNREACH_NET }, 92498943Sluigi { "host", ICMP_UNREACH_HOST }, 92598943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 92698943Sluigi { "port", ICMP_UNREACH_PORT }, 92798943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 92898943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 92998943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 93098943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 93198943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 93298943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 93398943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 93498943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 93598943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 93698943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 93798943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 93898943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 93998943Sluigi { NULL, 0 } 94098943Sluigi}; 94198943Sluigi 94298943Sluigistatic void 94398943Sluigifill_reject_code(u_short *codep, char *str) 94498943Sluigi{ 94598943Sluigi int val; 94698943Sluigi char *s; 94798943Sluigi 94898943Sluigi val = strtoul(str, &s, 0); 94998943Sluigi if (s == str || *s != '\0' || val >= 0x100) 95098943Sluigi val = match_token(icmpcodes, str); 951102087Sluigi if (val < 0) 95298943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 95398943Sluigi *codep = val; 95498943Sluigi return; 95598943Sluigi} 95698943Sluigi 95798943Sluigistatic void 958117328Sluigiprint_reject_code(uint16_t code) 95998943Sluigi{ 960117469Sluigi char const *s = match_value(icmpcodes, code); 96198943Sluigi 96298943Sluigi if (s != NULL) 96399475Sluigi printf("unreach %s", s); 96498943Sluigi else 96599475Sluigi printf("unreach %u", code); 96698943Sluigi} 96798943Sluigi 968149020Sbzstatic struct _s_x icmp6codes[] = { 969149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 970149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 971149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 972149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 973149020Sbz { NULL, 0 } 974149020Sbz}; 975149020Sbz 976149020Sbzstatic void 977149020Sbzfill_unreach6_code(u_short *codep, char *str) 978149020Sbz{ 979149020Sbz int val; 980149020Sbz char *s; 981149020Sbz 982149020Sbz val = strtoul(str, &s, 0); 983149020Sbz if (s == str || *s != '\0' || val >= 0x100) 984149020Sbz val = match_token(icmp6codes, str); 985149020Sbz if (val < 0) 986149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 987149020Sbz *codep = val; 988149020Sbz return; 989149020Sbz} 990149020Sbz 991149020Sbzstatic void 992149020Sbzprint_unreach6_code(uint16_t code) 993149020Sbz{ 994149020Sbz char const *s = match_value(icmp6codes, code); 995149020Sbz 996149020Sbz if (s != NULL) 997149020Sbz printf("unreach6 %s", s); 998149020Sbz else 999149020Sbz printf("unreach6 %u", code); 1000149020Sbz} 1001149020Sbz 100298943Sluigi/* 100398943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 100498943Sluigi * or -1 if the mask is not contiguous. 100598943Sluigi * XXX this needs a proper fix. 100698943Sluigi * This effectively works on masks in big-endian (network) format. 100798943Sluigi * when compiled on little endian architectures. 100898943Sluigi * 100998943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 101098943Sluigi * the first bit on the wire is bit 0 of the first byte. 101198943Sluigi * len is the max length in bits. 101298943Sluigi */ 101398943Sluigistatic int 1014117577Sluigicontigmask(uint8_t *p, int len) 101598943Sluigi{ 101698943Sluigi int i, n; 1017117577Sluigi 101898943Sluigi for (i=0; i<len ; i++) 101998943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 102098943Sluigi break; 102198943Sluigi for (n=i+1; n < len; n++) 102298943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 102398943Sluigi return -1; /* mask not contiguous */ 102498943Sluigi return i; 102598943Sluigi} 102698943Sluigi 102798943Sluigi/* 102898943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 102998943Sluigi * There is a specialized check for f_tcpflags. 103098943Sluigi */ 103198943Sluigistatic void 1032117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 103398943Sluigi{ 1034117469Sluigi char const *comma = ""; 103598943Sluigi int i; 1036117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1037117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 103898943Sluigi 103998943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 104098943Sluigi printf(" setup"); 104198943Sluigi return; 104298943Sluigi } 104398943Sluigi 104498943Sluigi printf(" %s ", name); 104598943Sluigi for (i=0; list[i].x != 0; i++) { 104698943Sluigi if (set & list[i].x) { 104798943Sluigi set &= ~list[i].x; 104898943Sluigi printf("%s%s", comma, list[i].s); 104998943Sluigi comma = ","; 105098943Sluigi } 105198943Sluigi if (clear & list[i].x) { 105298943Sluigi clear &= ~list[i].x; 105398943Sluigi printf("%s!%s", comma, list[i].s); 105498943Sluigi comma = ","; 105598943Sluigi } 105698943Sluigi } 105798943Sluigi} 105898943Sluigi 105998943Sluigi/* 106098943Sluigi * Print the ip address contained in a command. 106198943Sluigi */ 106298943Sluigistatic void 1063117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 106498943Sluigi{ 106598943Sluigi struct hostent *he = NULL; 1066117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1067117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 106898943Sluigi 1069102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 107098943Sluigi 107198943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 107298943Sluigi printf("me"); 107398943Sluigi return; 107498943Sluigi } 1075130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1076130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1077130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1078130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1079130281Sru printf(",%u", *a); 1080130281Sru printf(")"); 1081130281Sru return; 1082130281Sru } 108398943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1084117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1085116716Sluigi int i, j; 108698943Sluigi char comma = '{'; 108798943Sluigi 108898943Sluigi x = cmd->o.arg1 - 1; 108998943Sluigi x = htonl( ~x ); 109098943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 109198943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1092117577Sluigi contigmask((uint8_t *)&x, 32)); 109398943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 109498943Sluigi x &= 0xff; /* base */ 1095116716Sluigi /* 1096116716Sluigi * Print bits and ranges. 1097116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1098116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1099116716Sluigi * range, otherwise only print the initial bit and rescan. 1100116716Sluigi */ 110198943Sluigi for (i=0; i < cmd->o.arg1; i++) 1102117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1103116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1104117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1105116716Sluigi break; 110698943Sluigi printf("%c%d", comma, i+x); 1107116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1108116716Sluigi printf("-%d", j-1+x); 1109116716Sluigi i = j-1; 1110116716Sluigi } 111198943Sluigi comma = ','; 111298943Sluigi } 111398943Sluigi printf("}"); 111498943Sluigi return; 111598943Sluigi } 1116117328Sluigi /* 1117117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1118117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1119117328Sluigi * use that to count the number of entries. 1120117328Sluigi */ 1121117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1122117328Sluigi int mb = /* mask length */ 1123117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1124117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 112598943Sluigi if (mb == 32 && do_resolv) 1126117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 112798943Sluigi if (he != NULL) /* resolved to name */ 112898943Sluigi printf("%s", he->h_name); 112998943Sluigi else if (mb == 0) /* any */ 113098943Sluigi printf("any"); 113198943Sluigi else { /* numeric IP followed by some kind of mask */ 1132117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 113398943Sluigi if (mb < 0) 1134117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 113598943Sluigi else if (mb < 32) 113698943Sluigi printf("/%d", mb); 113798943Sluigi } 1138117328Sluigi if (len > 1) 1139117328Sluigi printf(","); 1140117328Sluigi } 114198943Sluigi} 114298943Sluigi 114398943Sluigi/* 114498943Sluigi * prints a MAC address/mask pair 114598943Sluigi */ 114698943Sluigistatic void 1147117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 114898943Sluigi{ 114998943Sluigi int l = contigmask(mask, 48); 115098943Sluigi 115198943Sluigi if (l == 0) 115298943Sluigi printf(" any"); 115398943Sluigi else { 115498943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 115598943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 115698943Sluigi if (l == -1) 115798943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 115898943Sluigi mask[0], mask[1], mask[2], 115998943Sluigi mask[3], mask[4], mask[5]); 116098943Sluigi else if (l < 48) 116198943Sluigi printf("/%d", l); 116298943Sluigi } 116398943Sluigi} 116498943Sluigi 116599475Sluigistatic void 116699475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 116799475Sluigi{ 1168117328Sluigi uint8_t type; 116998943Sluigi 117099475Sluigi cmd->d[0] = 0; 117199475Sluigi while (*av) { 117299475Sluigi if (*av == ',') 117399475Sluigi av++; 117499475Sluigi 117599475Sluigi type = strtoul(av, &av, 0); 117699475Sluigi 117799475Sluigi if (*av != ',' && *av != '\0') 117899475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 117999475Sluigi 118099475Sluigi if (type > 31) 118199475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 118299475Sluigi 118399475Sluigi cmd->d[0] |= 1 << type; 118499475Sluigi } 118599475Sluigi cmd->o.opcode = O_ICMPTYPE; 118699475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 118799475Sluigi} 118899475Sluigi 118999475Sluigistatic void 119099475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 119199475Sluigi{ 119299475Sluigi int i; 119399475Sluigi char sep= ' '; 119499475Sluigi 119599475Sluigi printf(" icmptypes"); 119699475Sluigi for (i = 0; i < 32; i++) { 119799475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 119899475Sluigi continue; 119999475Sluigi printf("%c%d", sep, i); 120099475Sluigi sep = ','; 120199475Sluigi } 120299475Sluigi} 120399475Sluigi 1204145246Sbrooks/* 1205145246Sbrooks * Print the ip address contained in a command. 1206145246Sbrooks */ 1207145246Sbrooksstatic void 1208145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1209145246Sbrooks{ 1210145246Sbrooks struct hostent *he = NULL; 1211145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1212145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1213145246Sbrooks char trad[255]; 1214145246Sbrooks 1215145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1216145246Sbrooks 1217145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1218145246Sbrooks printf("me6"); 1219145246Sbrooks return; 1220145246Sbrooks } 1221145246Sbrooks if (cmd->o.opcode == O_IP6) { 1222152923Sume printf(" ip6"); 1223145246Sbrooks return; 1224145246Sbrooks } 1225145246Sbrooks 1226145246Sbrooks /* 1227145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1228145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1229145246Sbrooks * use that to count the number of entries. 1230145246Sbrooks */ 1231145246Sbrooks 1232145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1233145246Sbrooks int mb = /* mask length */ 1234145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1235145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1236145246Sbrooks 1237145246Sbrooks if (mb == 128 && do_resolv) 1238145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1239145246Sbrooks if (he != NULL) /* resolved to name */ 1240145246Sbrooks printf("%s", he->h_name); 1241145246Sbrooks else if (mb == 0) /* any */ 1242145246Sbrooks printf("any"); 1243145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1244145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1245145246Sbrooks printf("Error ntop in print_ip6\n"); 1246145246Sbrooks printf("%s", trad ); 1247145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1248145246Sbrooks printf(":%s", 1249145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1250145246Sbrooks else if (mb < 128) 1251145246Sbrooks printf("/%d", mb); 1252145246Sbrooks } 1253145246Sbrooks if (len > 2) 1254145246Sbrooks printf(","); 1255145246Sbrooks } 1256145246Sbrooks} 1257145246Sbrooks 1258145246Sbrooksstatic void 1259145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1260145246Sbrooks{ 1261145246Sbrooks uint8_t type; 1262145246Sbrooks 1263162344Sjhay bzero(cmd, sizeof(*cmd)); 1264145246Sbrooks while (*av) { 1265145246Sbrooks if (*av == ',') 1266145246Sbrooks av++; 1267145246Sbrooks type = strtoul(av, &av, 0); 1268145246Sbrooks if (*av != ',' && *av != '\0') 1269145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1270145246Sbrooks /* 1271145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1272145246Sbrooks * we shouldn't be able to filter all possiable values 1273145246Sbrooks * regardless of the ability of the rest of the kernel to do 1274145246Sbrooks * anything useful with them. 1275145246Sbrooks */ 1276145246Sbrooks if (type > ICMP6_MAXTYPE) 1277145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1278145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1279145246Sbrooks } 1280145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1281145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1282145246Sbrooks} 1283145246Sbrooks 1284145246Sbrooks 1285145246Sbrooksstatic void 1286145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1287145246Sbrooks{ 1288145246Sbrooks int i, j; 1289145246Sbrooks char sep= ' '; 1290145246Sbrooks 1291152923Sume printf(" ip6 icmp6types"); 1292145246Sbrooks for (i = 0; i < 7; i++) 1293145246Sbrooks for (j=0; j < 32; ++j) { 1294145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1295145246Sbrooks continue; 1296145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1297145246Sbrooks sep = ','; 1298145246Sbrooks } 1299145246Sbrooks} 1300145246Sbrooks 1301145246Sbrooksstatic void 1302145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1303145246Sbrooks{ 1304145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1305145246Sbrooks char sep = ','; 1306145246Sbrooks 1307145246Sbrooks printf(" flow-id "); 1308145246Sbrooks for( i=0; i < limit; ++i) { 1309145246Sbrooks if (i == limit - 1) 1310145246Sbrooks sep = ' '; 1311145246Sbrooks printf("%d%c", cmd->d[i], sep); 1312145246Sbrooks } 1313145246Sbrooks} 1314145246Sbrooks 1315145246Sbrooks/* structure and define for the extension header in ipv6 */ 1316145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1317145246Sbrooks { "frag", EXT_FRAGMENT }, 1318145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1319145246Sbrooks { "route", EXT_ROUTING }, 1320149020Sbz { "dstopt", EXT_DSTOPTS }, 1321145246Sbrooks { "ah", EXT_AH }, 1322145246Sbrooks { "esp", EXT_ESP }, 1323169245Sbz { "rthdr0", EXT_RTHDR0 }, 1324169245Sbz { "rthdr2", EXT_RTHDR2 }, 1325145246Sbrooks { NULL, 0 } 1326145246Sbrooks}; 1327145246Sbrooks 1328145246Sbrooks/* fills command for the extension header filtering */ 1329187477Sluigistatic int 1330145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1331145246Sbrooks{ 1332145246Sbrooks int tok; 1333145246Sbrooks char *s = av; 1334145246Sbrooks 1335145246Sbrooks cmd->arg1 = 0; 1336145246Sbrooks 1337145246Sbrooks while(s) { 1338145246Sbrooks av = strsep( &s, ",") ; 1339145246Sbrooks tok = match_token(ext6hdrcodes, av); 1340145246Sbrooks switch (tok) { 1341145246Sbrooks case EXT_FRAGMENT: 1342145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1343145246Sbrooks break; 1344145246Sbrooks 1345145246Sbrooks case EXT_HOPOPTS: 1346145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1347145246Sbrooks break; 1348145246Sbrooks 1349145246Sbrooks case EXT_ROUTING: 1350145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1351145246Sbrooks break; 1352145246Sbrooks 1353149020Sbz case EXT_DSTOPTS: 1354149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1355149020Sbz break; 1356149020Sbz 1357145246Sbrooks case EXT_AH: 1358145246Sbrooks cmd->arg1 |= EXT_AH; 1359145246Sbrooks break; 1360145246Sbrooks 1361145246Sbrooks case EXT_ESP: 1362145246Sbrooks cmd->arg1 |= EXT_ESP; 1363145246Sbrooks break; 1364145246Sbrooks 1365169245Sbz case EXT_RTHDR0: 1366169245Sbz cmd->arg1 |= EXT_RTHDR0; 1367169245Sbz break; 1368169245Sbz 1369169245Sbz case EXT_RTHDR2: 1370169245Sbz cmd->arg1 |= EXT_RTHDR2; 1371169245Sbz break; 1372169245Sbz 1373145246Sbrooks default: 1374145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1375145246Sbrooks break; 1376145246Sbrooks } 1377145246Sbrooks } 1378145246Sbrooks if (cmd->arg1 == 0 ) 1379145246Sbrooks return 0; 1380145246Sbrooks cmd->opcode = O_EXT_HDR; 1381145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1382145246Sbrooks return 1; 1383145246Sbrooks} 1384145246Sbrooks 1385187477Sluigistatic void 1386145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1387145246Sbrooks{ 1388145246Sbrooks char sep = ' '; 1389145246Sbrooks 1390145246Sbrooks printf(" extension header:"); 1391145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1392145246Sbrooks printf("%cfragmentation", sep); 1393145246Sbrooks sep = ','; 1394145246Sbrooks } 1395145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1396145246Sbrooks printf("%chop options", sep); 1397145246Sbrooks sep = ','; 1398145246Sbrooks } 1399145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1400145246Sbrooks printf("%crouting options", sep); 1401145246Sbrooks sep = ','; 1402145246Sbrooks } 1403169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1404169245Sbz printf("%crthdr0", sep); 1405169245Sbz sep = ','; 1406169245Sbz } 1407169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1408169245Sbz printf("%crthdr2", sep); 1409169245Sbz sep = ','; 1410169245Sbz } 1411149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1412149020Sbz printf("%cdestination options", sep); 1413149020Sbz sep = ','; 1414149020Sbz } 1415145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1416145246Sbrooks printf("%cauthentication header", sep); 1417145246Sbrooks sep = ','; 1418145246Sbrooks } 1419145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1420145246Sbrooks printf("%cencapsulated security payload", sep); 1421145246Sbrooks } 1422145246Sbrooks} 1423145246Sbrooks 142498943Sluigi/* 142598943Sluigi * show_ipfw() prints the body of an ipfw rule. 142698943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 142798943Sluigi * a helper function to produce these entries if not provided explicitly. 1428102087Sluigi * The first argument is the list of fields we have, the second is 1429102087Sluigi * the list of fields we want to be printed. 1430101978Sluigi * 1431102087Sluigi * Special cases if we have provided a MAC header: 1432102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1433102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1434102087Sluigi * 1435102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 143698943Sluigi */ 1437101978Sluigi#define HAVE_PROTO 0x0001 1438101978Sluigi#define HAVE_SRCIP 0x0002 1439101978Sluigi#define HAVE_DSTIP 0x0004 1440169139Smaxim#define HAVE_PROTO4 0x0008 1441169139Smaxim#define HAVE_PROTO6 0x0010 1442102087Sluigi#define HAVE_OPTIONS 0x8000 144398943Sluigi 1444101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 144598943Sluigistatic void 1446187477Sluigishow_prerequisites(int *flags, int want, int cmd __unused) 144798943Sluigi{ 1448123495Sluigi if (comment_only) 1449123495Sluigi return; 1450102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1451102087Sluigi *flags |= HAVE_OPTIONS; 1452102087Sluigi 1453102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1454187477Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) { 1455146894Smlaier if ( (*flags & HAVE_PROTO4)) 1456146894Smlaier printf(" ip4"); 1457146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1458146894Smlaier printf(" ip6"); 1459146894Smlaier else 1460146894Smlaier printf(" ip"); 1461187477Sluigi } 1462102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1463102087Sluigi printf(" from any"); 1464102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1465102087Sluigi printf(" to any"); 1466102087Sluigi } 146798943Sluigi *flags |= want; 146898943Sluigi} 146998943Sluigi 147098943Sluigistatic void 1471112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 147298943Sluigi{ 1473107291Skeramida static int twidth = 0; 147498943Sluigi int l; 1475158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1476187477Sluigi const char *comment = NULL; /* ptr to comment if we have one */ 147798943Sluigi int proto = 0; /* default */ 147898943Sluigi int flags = 0; /* prerequisites */ 147998943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1480136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 148198943Sluigi int or_block = 0; /* we are in an or block */ 1482117328Sluigi uint32_t set_disable; 148398943Sluigi 1484115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1485101628Sluigi 1486101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1487101628Sluigi if (!show_sets) 1488101628Sluigi return; 1489101628Sluigi else 1490101628Sluigi printf("# DISABLED "); 1491101628Sluigi } 149298943Sluigi printf("%05u ", rule->rulenum); 149398943Sluigi 1494117469Sluigi if (pcwidth>0 || bcwidth>0) 1495115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1496115793Sticso bcwidth, align_uint64(&rule->bcnt)); 149798943Sluigi 1498117472Sluigi if (do_time == 2) 1499117472Sluigi printf("%10u ", rule->timestamp); 1500117472Sluigi else if (do_time == 1) { 1501107291Skeramida char timestr[30]; 1502107291Skeramida time_t t = (time_t)0; 1503107291Skeramida 1504107291Skeramida if (twidth == 0) { 1505107291Skeramida strcpy(timestr, ctime(&t)); 1506107291Skeramida *strchr(timestr, '\n') = '\0'; 1507107291Skeramida twidth = strlen(timestr); 1508107291Skeramida } 150998943Sluigi if (rule->timestamp) { 1510107291Skeramida t = _long_to_time(rule->timestamp); 151198943Sluigi 151298943Sluigi strcpy(timestr, ctime(&t)); 151398943Sluigi *strchr(timestr, '\n') = '\0'; 151498943Sluigi printf("%s ", timestr); 151598943Sluigi } else { 1516107291Skeramida printf("%*s", twidth, " "); 151798943Sluigi } 151898943Sluigi } 151998943Sluigi 1520101628Sluigi if (show_sets) 1521101628Sluigi printf("set %d ", rule->set); 1522101628Sluigi 152398943Sluigi /* 1524107289Sluigi * print the optional "match probability" 1525107289Sluigi */ 1526107289Sluigi if (rule->cmd_len > 0) { 1527107289Sluigi cmd = rule->cmd ; 1528107289Sluigi if (cmd->opcode == O_PROB) { 1529107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1530107289Sluigi double d = 1.0 * p->d[0]; 1531107289Sluigi 1532107289Sluigi d = (d / 0x7fffffff); 1533107289Sluigi printf("prob %f ", d); 1534107289Sluigi } 1535107289Sluigi } 1536107289Sluigi 1537107289Sluigi /* 153898943Sluigi * first print actions 153998943Sluigi */ 154098943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 154198943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 154298943Sluigi switch(cmd->opcode) { 154398943Sluigi case O_CHECK_STATE: 154498943Sluigi printf("check-state"); 1545102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 154698943Sluigi break; 154798943Sluigi 154898943Sluigi case O_ACCEPT: 154998943Sluigi printf("allow"); 155098943Sluigi break; 155198943Sluigi 155298943Sluigi case O_COUNT: 155398943Sluigi printf("count"); 155498943Sluigi break; 155598943Sluigi 155698943Sluigi case O_DENY: 155798943Sluigi printf("deny"); 155898943Sluigi break; 155998943Sluigi 156099475Sluigi case O_REJECT: 156199475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 156299475Sluigi printf("reset"); 156399475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 156499475Sluigi printf("reject"); 156599475Sluigi else 156699475Sluigi print_reject_code(cmd->arg1); 156799475Sluigi break; 156899475Sluigi 1569149020Sbz case O_UNREACH6: 1570149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1571149020Sbz printf("reset6"); 1572149020Sbz else 1573149020Sbz print_unreach6_code(cmd->arg1); 1574149020Sbz break; 1575149020Sbz 1576159636Soleg case O_SKIPTO: 1577159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 157898943Sluigi break; 157998943Sluigi 158098943Sluigi case O_PIPE: 1581159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1582159636Soleg break; 1583159636Soleg 158498943Sluigi case O_QUEUE: 1585159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1586159636Soleg break; 1587159636Soleg 158898943Sluigi case O_DIVERT: 1589159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1590159636Soleg break; 1591159636Soleg 159298943Sluigi case O_TEE: 1593159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1594159636Soleg break; 1595159636Soleg 1596141351Sglebius case O_NETGRAPH: 1597159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1598159636Soleg break; 1599159636Soleg 1600141351Sglebius case O_NGTEE: 1601159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1602159636Soleg break; 1603141351Sglebius 160498943Sluigi case O_FORWARD_IP: 160598943Sluigi { 160698943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 160798943Sluigi 1608161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1609161424Sjulian printf("fwd tablearg"); 1610161424Sjulian } else { 1611161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1612161424Sjulian } 161398943Sluigi if (s->sa.sin_port) 1614103241Sluigi printf(",%d", s->sa.sin_port); 161598943Sluigi } 161698943Sluigi break; 161798943Sluigi 161898943Sluigi case O_LOG: /* O_LOG is printed last */ 161998943Sluigi logptr = (ipfw_insn_log *)cmd; 162098943Sluigi break; 162198943Sluigi 1622136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1623136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1624136071Sgreen break; 1625136071Sgreen 1626158879Soleg case O_TAG: 1627158879Soleg tagptr = cmd; 1628158879Soleg break; 1629158879Soleg 1630165648Spiso case O_NAT: 1631176517Spiso PRINT_UINT_ARG("nat ", cmd->arg1); 1632165648Spiso break; 1633165648Spiso 1634178888Sjulian case O_SETFIB: 1635178888Sjulian PRINT_UINT_ARG("setfib ", cmd->arg1); 1636178888Sjulian break; 1637178888Sjulian 163898943Sluigi default: 1639136071Sgreen printf("** unrecognized action %d len %d ", 164098943Sluigi cmd->opcode, cmd->len); 164198943Sluigi } 164298943Sluigi } 164398943Sluigi if (logptr) { 164498943Sluigi if (logptr->max_log > 0) 164599909Sluigi printf(" log logamount %d", logptr->max_log); 164698943Sluigi else 164799909Sluigi printf(" log"); 164898943Sluigi } 1649136071Sgreen if (altqptr) { 1650136071Sgreen const char *qname; 1651102087Sluigi 1652136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1653136071Sgreen if (qname == NULL) 1654136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1655136071Sgreen else 1656136071Sgreen printf(" altq %s", qname); 1657136071Sgreen } 1658158879Soleg if (tagptr) { 1659158879Soleg if (tagptr->len & F_NOT) 1660159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1661158879Soleg else 1662159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1663158879Soleg } 1664136071Sgreen 166598943Sluigi /* 1666102087Sluigi * then print the body. 166798943Sluigi */ 1668146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1669146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1670146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1671146894Smlaier continue; 1672146894Smlaier if (cmd->opcode == O_IP4) { 1673146894Smlaier flags |= HAVE_PROTO4; 1674146894Smlaier break; 1675146894Smlaier } else if (cmd->opcode == O_IP6) { 1676146894Smlaier flags |= HAVE_PROTO6; 1677146894Smlaier break; 1678146894Smlaier } 1679146894Smlaier } 1680102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1681146894Smlaier if (!do_compact) { 1682146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1683146894Smlaier printf(" from any to any"); 1684146894Smlaier } 1685102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1686102087Sluigi } 1687102087Sluigi 1688123495Sluigi if (comment_only) 1689123495Sluigi comment = "..."; 1690123495Sluigi 169198943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 169298943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 169399475Sluigi /* useful alias */ 169499475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 169598943Sluigi 1696123495Sluigi if (comment_only) { 1697123495Sluigi if (cmd->opcode != O_NOP) 1698123495Sluigi continue; 1699123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1700123495Sluigi return; 1701123495Sluigi } 1702123495Sluigi 1703102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1704102087Sluigi 170598943Sluigi switch(cmd->opcode) { 1706117577Sluigi case O_PROB: 1707107289Sluigi break; /* done already */ 1708107289Sluigi 170998943Sluigi case O_PROBE_STATE: 171098943Sluigi break; /* no need to print anything here */ 171198943Sluigi 171298943Sluigi case O_IP_SRC: 1713130281Sru case O_IP_SRC_LOOKUP: 171498943Sluigi case O_IP_SRC_MASK: 171598943Sluigi case O_IP_SRC_ME: 171698943Sluigi case O_IP_SRC_SET: 1717102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 171898943Sluigi if (!(flags & HAVE_SRCIP)) 171998943Sluigi printf(" from"); 172098943Sluigi if ((cmd->len & F_OR) && !or_block) 172198943Sluigi printf(" {"); 1722102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1723102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 172498943Sluigi flags |= HAVE_SRCIP; 172598943Sluigi break; 172698943Sluigi 172798943Sluigi case O_IP_DST: 1728130281Sru case O_IP_DST_LOOKUP: 172998943Sluigi case O_IP_DST_MASK: 173098943Sluigi case O_IP_DST_ME: 173198943Sluigi case O_IP_DST_SET: 1732102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 173398943Sluigi if (!(flags & HAVE_DSTIP)) 173498943Sluigi printf(" to"); 173598943Sluigi if ((cmd->len & F_OR) && !or_block) 173698943Sluigi printf(" {"); 1737102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1738102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 173998943Sluigi flags |= HAVE_DSTIP; 174098943Sluigi break; 174198943Sluigi 1742145246Sbrooks case O_IP6_SRC: 1743145246Sbrooks case O_IP6_SRC_MASK: 1744145246Sbrooks case O_IP6_SRC_ME: 1745147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1746145246Sbrooks if (!(flags & HAVE_SRCIP)) 1747145246Sbrooks printf(" from"); 1748145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1749145246Sbrooks printf(" {"); 1750145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1751145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1752145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1753145246Sbrooks break; 1754145246Sbrooks 1755145246Sbrooks case O_IP6_DST: 1756145246Sbrooks case O_IP6_DST_MASK: 1757145246Sbrooks case O_IP6_DST_ME: 1758145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1759145246Sbrooks if (!(flags & HAVE_DSTIP)) 1760145246Sbrooks printf(" to"); 1761145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1762145246Sbrooks printf(" {"); 1763145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1764145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1765145246Sbrooks flags |= HAVE_DSTIP; 1766145246Sbrooks break; 1767145246Sbrooks 1768145246Sbrooks case O_FLOW6ID: 1769145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1770145246Sbrooks flags |= HAVE_OPTIONS; 1771145246Sbrooks break; 1772145246Sbrooks 177398943Sluigi case O_IP_DSTPORT: 1774102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 177598943Sluigi case O_IP_SRCPORT: 1776102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1777101641Sluigi if ((cmd->len & F_OR) && !or_block) 1778101641Sluigi printf(" {"); 1779172306Smaxim if (cmd->len & F_NOT) 1780172306Smaxim printf(" not"); 1781102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1782102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 178398943Sluigi break; 178498943Sluigi 178598943Sluigi case O_PROTO: { 1786145246Sbrooks struct protoent *pe = NULL; 178798943Sluigi 178898943Sluigi if ((cmd->len & F_OR) && !or_block) 178998943Sluigi printf(" {"); 179098943Sluigi if (cmd->len & F_NOT) 179198943Sluigi printf(" not"); 179298943Sluigi proto = cmd->arg1; 1793145567Sbrooks pe = getprotobynumber(cmd->arg1); 1794146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1795146894Smlaier !(flags & HAVE_PROTO)) 1796146894Smlaier show_prerequisites(&flags, 1797146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1798102087Sluigi if (flags & HAVE_OPTIONS) 1799102087Sluigi printf(" proto"); 180098943Sluigi if (pe) 180198943Sluigi printf(" %s", pe->p_name); 180298943Sluigi else 180398943Sluigi printf(" %u", cmd->arg1); 180498943Sluigi } 180598943Sluigi flags |= HAVE_PROTO; 180698943Sluigi break; 1807106505Smaxim 180898943Sluigi default: /*options ... */ 1809146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1810146894Smlaier if (((cmd->opcode == O_IP6) && 1811146894Smlaier (flags & HAVE_PROTO6)) || 1812146894Smlaier ((cmd->opcode == O_IP4) && 1813146894Smlaier (flags & HAVE_PROTO4))) 1814146894Smlaier break; 1815102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 181698943Sluigi if ((cmd->len & F_OR) && !or_block) 181798943Sluigi printf(" {"); 181898943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 181998943Sluigi printf(" not"); 182098943Sluigi switch(cmd->opcode) { 1821169139Smaxim case O_MACADDR2: { 1822169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1823169139Smaxim 1824169139Smaxim printf(" MAC"); 1825169139Smaxim print_mac(m->addr, m->mask); 1826169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1827169139Smaxim } 1828169139Smaxim break; 1829169139Smaxim 1830169139Smaxim case O_MAC_TYPE: 1831169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1832169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1833169139Smaxim break; 1834169139Smaxim 1835169139Smaxim 183698943Sluigi case O_FRAG: 183798943Sluigi printf(" frag"); 183898943Sluigi break; 183998943Sluigi 1840178888Sjulian case O_FIB: 1841178888Sjulian printf(" fib %u", cmd->arg1 ); 1842178888Sjulian break; 1843178888Sjulian 184498943Sluigi case O_IN: 184598943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 184698943Sluigi break; 184798943Sluigi 1848136073Sgreen case O_DIVERTED: 1849136073Sgreen switch (cmd->arg1) { 1850136073Sgreen case 3: 1851136073Sgreen printf(" diverted"); 1852136073Sgreen break; 1853136073Sgreen case 1: 1854136073Sgreen printf(" diverted-loopback"); 1855136073Sgreen break; 1856136073Sgreen case 2: 1857136073Sgreen printf(" diverted-output"); 1858136073Sgreen break; 1859136073Sgreen default: 1860136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1861136073Sgreen break; 1862136073Sgreen } 1863136073Sgreen break; 1864136073Sgreen 186598943Sluigi case O_LAYER2: 186698943Sluigi printf(" layer2"); 186798943Sluigi break; 186898943Sluigi case O_XMIT: 186998943Sluigi case O_RECV: 1870140423Sglebius case O_VIA: 1871140423Sglebius { 1872117469Sluigi char const *s; 187398943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 187498943Sluigi 187598943Sluigi if (cmd->opcode == O_XMIT) 187698943Sluigi s = "xmit"; 187798943Sluigi else if (cmd->opcode == O_RECV) 187898943Sluigi s = "recv"; 1879117469Sluigi else /* if (cmd->opcode == O_VIA) */ 188098943Sluigi s = "via"; 188198943Sluigi if (cmdif->name[0] == '\0') 188299475Sluigi printf(" %s %s", s, 188399475Sluigi inet_ntoa(cmdif->p.ip)); 1884140423Sglebius else 1885140423Sglebius printf(" %s %s", s, cmdif->name); 1886140423Sglebius 188798943Sluigi break; 1888140423Sglebius } 188998943Sluigi case O_IPID: 1890116690Sluigi if (F_LEN(cmd) == 1) 1891116690Sluigi printf(" ipid %u", cmd->arg1 ); 1892116690Sluigi else 1893116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1894116690Sluigi O_IPID); 189598943Sluigi break; 189698943Sluigi 189798943Sluigi case O_IPTTL: 1898116690Sluigi if (F_LEN(cmd) == 1) 1899116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1900116690Sluigi else 1901116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1902116690Sluigi O_IPTTL); 190398943Sluigi break; 190498943Sluigi 190598943Sluigi case O_IPVER: 190698943Sluigi printf(" ipver %u", cmd->arg1 ); 190798943Sluigi break; 190898943Sluigi 190999475Sluigi case O_IPPRECEDENCE: 191099475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 191199475Sluigi break; 191299475Sluigi 191398943Sluigi case O_IPLEN: 1914116690Sluigi if (F_LEN(cmd) == 1) 1915116690Sluigi printf(" iplen %u", cmd->arg1 ); 1916116690Sluigi else 1917116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1918116690Sluigi O_IPLEN); 191998943Sluigi break; 192098943Sluigi 1921101116Sluigi case O_IPOPT: 192298943Sluigi print_flags("ipoptions", cmd, f_ipopts); 192398943Sluigi break; 192498943Sluigi 192599475Sluigi case O_IPTOS: 192699475Sluigi print_flags("iptos", cmd, f_iptos); 192799475Sluigi break; 192899475Sluigi 192999475Sluigi case O_ICMPTYPE: 193099475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 193199475Sluigi break; 193299475Sluigi 193398943Sluigi case O_ESTAB: 193498943Sluigi printf(" established"); 193598943Sluigi break; 193698943Sluigi 1937136075Sgreen case O_TCPDATALEN: 1938136075Sgreen if (F_LEN(cmd) == 1) 1939136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1940136075Sgreen else 1941136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1942136075Sgreen O_TCPDATALEN); 1943136075Sgreen break; 1944136075Sgreen 194598943Sluigi case O_TCPFLAGS: 194698943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 194798943Sluigi break; 194898943Sluigi 194998943Sluigi case O_TCPOPTS: 195098943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 195198943Sluigi break; 195298943Sluigi 195398943Sluigi case O_TCPWIN: 195498943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 195598943Sluigi break; 195698943Sluigi 195798943Sluigi case O_TCPACK: 195898943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 195998943Sluigi break; 196098943Sluigi 196198943Sluigi case O_TCPSEQ: 196298943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 196398943Sluigi break; 196498943Sluigi 196598943Sluigi case O_UID: 196698943Sluigi { 196798943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 196898943Sluigi 196998943Sluigi if (pwd) 197098943Sluigi printf(" uid %s", pwd->pw_name); 197198943Sluigi else 197298943Sluigi printf(" uid %u", cmd32->d[0]); 197398943Sluigi } 197498943Sluigi break; 197598943Sluigi 197698943Sluigi case O_GID: 197798943Sluigi { 197898943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 197998943Sluigi 198098943Sluigi if (grp) 198198943Sluigi printf(" gid %s", grp->gr_name); 198298943Sluigi else 198398943Sluigi printf(" gid %u", cmd32->d[0]); 198498943Sluigi } 198598943Sluigi break; 198698943Sluigi 1987133600Scsjp case O_JAIL: 1988133600Scsjp printf(" jail %d", cmd32->d[0]); 1989133600Scsjp break; 1990133600Scsjp 1991112250Scjc case O_VERREVPATH: 1992112250Scjc printf(" verrevpath"); 1993112250Scjc break; 1994116919Sluigi 1995128575Sandre case O_VERSRCREACH: 1996128575Sandre printf(" versrcreach"); 1997128575Sandre break; 1998128575Sandre 1999133387Sandre case O_ANTISPOOF: 2000133387Sandre printf(" antispoof"); 2001133387Sandre break; 2002133387Sandre 2003117241Sluigi case O_IPSEC: 2004117241Sluigi printf(" ipsec"); 2005117241Sluigi break; 2006117241Sluigi 2007117469Sluigi case O_NOP: 2008117626Sluigi comment = (char *)(cmd + 1); 2009117469Sluigi break; 2010117469Sluigi 201198943Sluigi case O_KEEP_STATE: 201298943Sluigi printf(" keep-state"); 201398943Sluigi break; 201498943Sluigi 2015159636Soleg case O_LIMIT: { 201698943Sluigi struct _s_x *p = limit_masks; 201798943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 2018117328Sluigi uint8_t x = c->limit_mask; 2019117469Sluigi char const *comma = " "; 202098943Sluigi 202198943Sluigi printf(" limit"); 2022117577Sluigi for (; p->x != 0 ; p++) 202399909Sluigi if ((x & p->x) == p->x) { 202498943Sluigi x &= ~p->x; 202598943Sluigi printf("%s%s", comma, p->s); 202698943Sluigi comma = ","; 202798943Sluigi } 2028159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 202998943Sluigi break; 2030159636Soleg } 203198943Sluigi 2032146894Smlaier case O_IP6: 2033152923Sume printf(" ip6"); 2034145246Sbrooks break; 2035145246Sbrooks 2036146894Smlaier case O_IP4: 2037152923Sume printf(" ip4"); 2038146894Smlaier break; 2039146894Smlaier 2040145246Sbrooks case O_ICMP6TYPE: 2041145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2042145246Sbrooks break; 2043145246Sbrooks 2044145246Sbrooks case O_EXT_HDR: 2045145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2046145246Sbrooks break; 2047145246Sbrooks 2048158879Soleg case O_TAGGED: 2049158879Soleg if (F_LEN(cmd) == 1) 2050159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2051158879Soleg else 2052159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2053159636Soleg O_TAGGED); 2054158879Soleg break; 2055158879Soleg 205698943Sluigi default: 205798943Sluigi printf(" [opcode %d len %d]", 205898943Sluigi cmd->opcode, cmd->len); 205998943Sluigi } 206098943Sluigi } 206198943Sluigi if (cmd->len & F_OR) { 206298943Sluigi printf(" or"); 206398943Sluigi or_block = 1; 206498943Sluigi } else if (or_block) { 206598943Sluigi printf(" }"); 206698943Sluigi or_block = 0; 206798943Sluigi } 206898943Sluigi } 2069102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2070117626Sluigi if (comment) 2071117626Sluigi printf(" // %s", comment); 207298943Sluigi printf("\n"); 207398943Sluigi} 207498943Sluigi 207598943Sluigistatic void 2076112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 207798943Sluigi{ 207898943Sluigi struct protoent *pe; 207998943Sluigi struct in_addr a; 2080115793Sticso uint16_t rulenum; 2081159160Smlaier char buf[INET6_ADDRSTRLEN]; 208298943Sluigi 208398943Sluigi if (!do_expired) { 208498943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 208598943Sluigi return; 208698943Sluigi } 2087115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2088117328Sluigi printf("%05d", rulenum); 2089117469Sluigi if (pcwidth>0 || bcwidth>0) 2090117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2091117328Sluigi align_uint64(&d->pcnt), bcwidth, 2092117328Sluigi align_uint64(&d->bcnt), d->expire); 209398943Sluigi switch (d->dyn_type) { 209498943Sluigi case O_LIMIT_PARENT: 209598943Sluigi printf(" PARENT %d", d->count); 209698943Sluigi break; 209798943Sluigi case O_LIMIT: 209898943Sluigi printf(" LIMIT"); 209998943Sluigi break; 210098943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2101106505Smaxim printf(" STATE"); 210298943Sluigi break; 210398943Sluigi } 210498943Sluigi 210598943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 210698943Sluigi printf(" %s", pe->p_name); 210798943Sluigi else 210898943Sluigi printf(" proto %u", d->id.proto); 210998943Sluigi 2110159160Smlaier if (d->id.addr_type == 4) { 2111159160Smlaier a.s_addr = htonl(d->id.src_ip); 2112159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 211398943Sluigi 2114159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2115159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2116159160Smlaier } else if (d->id.addr_type == 6) { 2117159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2118159160Smlaier sizeof(buf)), d->id.src_port); 2119159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2120159160Smlaier sizeof(buf)), d->id.dst_port); 2121159160Smlaier } else 2122159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2123159160Smlaier 212498943Sluigi printf("\n"); 212598943Sluigi} 212698943Sluigi 2127117469Sluigistatic int 212898943Sluigisort_q(const void *pa, const void *pb) 212998943Sluigi{ 213098943Sluigi int rev = (do_sort < 0); 213198943Sluigi int field = rev ? -do_sort : do_sort; 213298943Sluigi long long res = 0; 213398943Sluigi const struct dn_flow_queue *a = pa; 213498943Sluigi const struct dn_flow_queue *b = pb; 213598943Sluigi 213698943Sluigi switch (field) { 213798943Sluigi case 1: /* pkts */ 213898943Sluigi res = a->len - b->len; 213998943Sluigi break; 214098943Sluigi case 2: /* bytes */ 214198943Sluigi res = a->len_bytes - b->len_bytes; 214298943Sluigi break; 214398943Sluigi 214498943Sluigi case 3: /* tot pkts */ 214598943Sluigi res = a->tot_pkts - b->tot_pkts; 214698943Sluigi break; 214798943Sluigi 214898943Sluigi case 4: /* tot bytes */ 214998943Sluigi res = a->tot_bytes - b->tot_bytes; 215098943Sluigi break; 215198943Sluigi } 215298943Sluigi if (res < 0) 215398943Sluigi res = -1; 215498943Sluigi if (res > 0) 215598943Sluigi res = 1; 215698943Sluigi return (int)(rev ? res : -res); 215798943Sluigi} 215898943Sluigi 215998943Sluigistatic void 216098943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 216198943Sluigi{ 216298943Sluigi int l; 2163145246Sbrooks int index_printed, indexes = 0; 2164145246Sbrooks char buff[255]; 2165145246Sbrooks struct protoent *pe; 216698943Sluigi 216798943Sluigi if (fs->rq_elements == 0) 216898943Sluigi return; 216998943Sluigi 217098943Sluigi if (do_sort != 0) 217198943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2172145246Sbrooks 2173145246Sbrooks /* Print IPv4 flows */ 2174145246Sbrooks index_printed = 0; 217598943Sluigi for (l = 0; l < fs->rq_elements; l++) { 217698943Sluigi struct in_addr ina; 217798943Sluigi 2178145246Sbrooks /* XXX: Should check for IPv4 flows */ 2179145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2180145246Sbrooks continue; 2181145246Sbrooks 2182145246Sbrooks if (!index_printed) { 2183145246Sbrooks index_printed = 1; 2184145246Sbrooks if (indexes > 0) /* currently a no-op */ 2185145246Sbrooks printf("\n"); 2186145246Sbrooks indexes++; 2187145246Sbrooks printf(" " 2188145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2189145246Sbrooks fs->flow_mask.proto, 2190145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2191145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2192145246Sbrooks 2193145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2194145246Sbrooks "____Dest. IP/port____ " 2195145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2196145246Sbrooks } 2197145246Sbrooks 219898943Sluigi printf("%3d ", q[l].hash_slot); 219998943Sluigi pe = getprotobynumber(q[l].id.proto); 220098943Sluigi if (pe) 220198943Sluigi printf("%-4s ", pe->p_name); 220298943Sluigi else 220398943Sluigi printf("%4u ", q[l].id.proto); 2204145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 220598943Sluigi printf("%15s/%-5d ", 220698943Sluigi inet_ntoa(ina), q[l].id.src_port); 220798943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 220898943Sluigi printf("%15s/%-5d ", 220998943Sluigi inet_ntoa(ina), q[l].id.dst_port); 221098943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 221198943Sluigi q[l].tot_pkts, q[l].tot_bytes, 221298943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 221398943Sluigi if (verbose) 221498943Sluigi printf(" S %20qd F %20qd\n", 221598943Sluigi q[l].S, q[l].F); 221698943Sluigi } 2217145246Sbrooks 2218145246Sbrooks /* Print IPv6 flows */ 2219145246Sbrooks index_printed = 0; 2220145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2221145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2222145246Sbrooks continue; 2223145246Sbrooks 2224145246Sbrooks if (!index_printed) { 2225145246Sbrooks index_printed = 1; 2226145246Sbrooks if (indexes > 0) 2227145246Sbrooks printf("\n"); 2228145246Sbrooks indexes++; 2229145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2230145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2231145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2232145246Sbrooks buff, sizeof(buff)); 2233145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2234145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2235145246Sbrooks buff, sizeof(buff) ); 2236145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2237145246Sbrooks 2238145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2239145246Sbrooks "______________Source IPv6/port_______________ " 2240145246Sbrooks "_______________Dest. IPv6/port_______________ " 2241145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2242145246Sbrooks } 2243145246Sbrooks printf("%3d ", q[l].hash_slot); 2244145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2245145246Sbrooks if (pe != NULL) 2246145246Sbrooks printf("%9s ", pe->p_name); 2247145246Sbrooks else 2248145246Sbrooks printf("%9u ", q[l].id.proto); 2249145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2250145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2251145246Sbrooks q[l].id.src_port); 2252145246Sbrooks printf(" %39s/%-5d ", 2253145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2254145246Sbrooks q[l].id.dst_port); 2255145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2256145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2257145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2258145246Sbrooks if (verbose) 2259145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2260145246Sbrooks } 226198943Sluigi} 226298943Sluigi 226398943Sluigistatic void 226498943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 226598943Sluigi{ 226698943Sluigi int l; 226798943Sluigi char qs[30]; 226898943Sluigi char plr[30]; 226998943Sluigi char red[90]; /* Display RED parameters */ 227098943Sluigi 227198943Sluigi l = fs->qsize; 227298943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 227398943Sluigi if (l >= 8192) 227498943Sluigi sprintf(qs, "%d KB", l / 1024); 227598943Sluigi else 227698943Sluigi sprintf(qs, "%d B", l); 227798943Sluigi } else 227898943Sluigi sprintf(qs, "%3d sl.", l); 227998943Sluigi if (fs->plr) 228098943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 228198943Sluigi else 228298943Sluigi plr[0] = '\0'; 228398943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 228498943Sluigi sprintf(red, 228598943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 228698943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 228798943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 228898943Sluigi SCALE_VAL(fs->min_th), 228998943Sluigi SCALE_VAL(fs->max_th), 229098943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 229198943Sluigi else 229298943Sluigi sprintf(red, "droptail"); 229398943Sluigi 229498943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 229598943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 229698943Sluigi} 229798943Sluigi 229898943Sluigistatic void 2299117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 230098943Sluigi{ 2301117469Sluigi int rulenum; 230298943Sluigi void *next = data; 230398943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 230498943Sluigi struct dn_flow_set *fs; 230598943Sluigi struct dn_flow_queue *q; 230698943Sluigi int l; 230798943Sluigi 230898943Sluigi if (ac > 0) 230998943Sluigi rulenum = strtoul(*av++, NULL, 10); 231098943Sluigi else 231198943Sluigi rulenum = 0; 231298943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 231398943Sluigi double b = p->bandwidth; 231498943Sluigi char buf[30]; 231598943Sluigi char prefix[80]; 231698943Sluigi 2317161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 231898943Sluigi break; /* done with pipes, now queues */ 231998943Sluigi 232098943Sluigi /* 232198943Sluigi * compute length, as pipe have variable size 232298943Sluigi */ 232398943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2324117469Sluigi next = (char *)p + l; 232598943Sluigi nbytes -= l; 232698943Sluigi 2327134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 232898943Sluigi continue; 232998943Sluigi 233098943Sluigi /* 233198943Sluigi * Print rate (or clocking interface) 233298943Sluigi */ 233398943Sluigi if (p->if_name[0] != '\0') 233498943Sluigi sprintf(buf, "%s", p->if_name); 233598943Sluigi else if (b == 0) 233698943Sluigi sprintf(buf, "unlimited"); 233798943Sluigi else if (b >= 1000000) 233898943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 233998943Sluigi else if (b >= 1000) 234098943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 234198943Sluigi else 234298943Sluigi sprintf(buf, "%7.3f bit/s ", b); 234398943Sluigi 234498943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 234598943Sluigi p->pipe_nr, buf, p->delay); 234698943Sluigi print_flowset_parms(&(p->fs), prefix); 234798943Sluigi if (verbose) 234898943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2349106505Smaxim 235098943Sluigi q = (struct dn_flow_queue *)(p+1); 235198943Sluigi list_queues(&(p->fs), q); 235298943Sluigi } 235398943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 235498943Sluigi char prefix[80]; 235598943Sluigi 2356161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 235798943Sluigi break; 235898943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2359117469Sluigi next = (char *)fs + l; 236098943Sluigi nbytes -= l; 2361134225Spjd 2362134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2363134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2364134225Spjd continue; 2365134225Spjd } 2366134225Spjd 236798943Sluigi q = (struct dn_flow_queue *)(fs+1); 236898943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 236998943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 237098943Sluigi print_flowset_parms(fs, prefix); 237198943Sluigi list_queues(fs, q); 237298943Sluigi } 237398943Sluigi} 237498943Sluigi 2375101978Sluigi/* 2376101978Sluigi * This one handles all set-related commands 2377101978Sluigi * ipfw set { show | enable | disable } 2378101978Sluigi * ipfw set swap X Y 2379101978Sluigi * ipfw set move X to Y 2380101978Sluigi * ipfw set move rule X to Y 2381101978Sluigi */ 238298943Sluigistatic void 2383101978Sluigisets_handler(int ac, char *av[]) 2384101978Sluigi{ 2385117328Sluigi uint32_t set_disable, masks[2]; 2386101978Sluigi int i, nbytes; 2387117328Sluigi uint16_t rulenum; 2388117328Sluigi uint8_t cmd, new_set; 2389101978Sluigi 2390101978Sluigi ac--; 2391101978Sluigi av++; 2392101978Sluigi 2393101978Sluigi if (!ac) 2394101978Sluigi errx(EX_USAGE, "set needs command"); 2395140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2396101978Sluigi void *data; 2397117469Sluigi char const *msg; 2398101978Sluigi 2399101978Sluigi nbytes = sizeof(struct ip_fw); 2400187716Sluigi data = safe_calloc(1, nbytes); 2401119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2402101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2403115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2404115793Sticso &set_disable, sizeof(set_disable)); 2405101978Sluigi 2406117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2407117577Sluigi if ((set_disable & (1<<i))) { 2408101978Sluigi printf("%s %d", msg, i); 2409101978Sluigi msg = ""; 2410101978Sluigi } 2411101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2412117655Sluigi for (i = 0; i < RESVD_SET; i++) 2413117577Sluigi if (!(set_disable & (1<<i))) { 2414101978Sluigi printf("%s %d", msg, i); 2415101978Sluigi msg = ""; 2416101978Sluigi } 2417101978Sluigi printf("\n"); 2418140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2419101978Sluigi ac--; av++; 2420101978Sluigi if (ac != 2) 2421101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2422101978Sluigi rulenum = atoi(av[0]); 2423101978Sluigi new_set = atoi(av[1]); 2424117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2425101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2426117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2427101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2428101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2429117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2430140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2431101978Sluigi ac--; av++; 2432140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2433101978Sluigi cmd = 2; 2434101978Sluigi ac--; av++; 2435101978Sluigi } else 2436101978Sluigi cmd = 3; 2437140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2438101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2439101978Sluigi rulenum = atoi(av[0]); 2440101978Sluigi new_set = atoi(av[2]); 2441117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2442182823Srik (cmd == 2 && rulenum == IPFW_DEFAULT_RULE) ) 2443101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2444117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2445101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2446101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2447117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2448140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2449140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2450140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2451101978Sluigi 2452101978Sluigi ac--; av++; 2453101978Sluigi masks[0] = masks[1] = 0; 2454101978Sluigi 2455101978Sluigi while (ac) { 2456101978Sluigi if (isdigit(**av)) { 2457101978Sluigi i = atoi(*av); 2458117655Sluigi if (i < 0 || i > RESVD_SET) 2459101978Sluigi errx(EX_DATAERR, 2460101978Sluigi "invalid set number %d\n", i); 2461101978Sluigi masks[which] |= (1<<i); 2462140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2463101978Sluigi which = 0; 2464140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2465101978Sluigi which = 1; 2466101978Sluigi else 2467101978Sluigi errx(EX_DATAERR, 2468101978Sluigi "invalid set command %s\n", *av); 2469101978Sluigi av++; ac--; 2470101978Sluigi } 2471101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2472101978Sluigi errx(EX_DATAERR, 2473101978Sluigi "cannot enable and disable the same set\n"); 2474101978Sluigi 2475117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2476101978Sluigi if (i) 2477101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2478101978Sluigi } else 2479101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2480101978Sluigi} 2481101978Sluigi 2482101978Sluigistatic void 2483109126Sdillonsysctl_handler(int ac, char *av[], int which) 2484109126Sdillon{ 2485109126Sdillon ac--; 2486109126Sdillon av++; 2487109126Sdillon 2488119668Smaxim if (ac == 0) { 2489109126Sdillon warnx("missing keyword to enable/disable\n"); 2490140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2491116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2492116770Sluigi &which, sizeof(which)); 2493140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2494116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2495116770Sluigi &which, sizeof(which)); 2496140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2497116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2498116770Sluigi &which, sizeof(which)); 2499140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2500116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2501116770Sluigi &which, sizeof(which)); 2502140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2503116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2504116770Sluigi &which, sizeof(which)); 2505140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2506136071Sgreen altq_set_enabled(which); 2507109126Sdillon } else { 2508109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2509109126Sdillon } 2510109126Sdillon} 2511109126Sdillon 2512109126Sdillonstatic void 2513117469Sluigilist(int ac, char *av[], int show_counters) 251498943Sluigi{ 251598943Sluigi struct ip_fw *r; 251698943Sluigi ipfw_dyn_rule *dynrules, *d; 251798943Sluigi 2518117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2519117469Sluigi char *lim; 2520117469Sluigi void *data = NULL; 2521112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 252298943Sluigi int exitval = EX_OK; 252398943Sluigi int lac; 252498943Sluigi char **lav; 2525117469Sluigi u_long rnum, last; 252698943Sluigi char *endptr; 252798943Sluigi int seen = 0; 2528170923Smaxim uint8_t set; 252998943Sluigi 253098943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 253198943Sluigi int nalloc = 1024; /* start somewhere... */ 253298943Sluigi 2533135036Smaxim last = 0; 2534135036Smaxim 2535117328Sluigi if (test_only) { 2536117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2537117328Sluigi return; 2538117328Sluigi } 2539117328Sluigi 254098943Sluigi ac--; 254198943Sluigi av++; 254298943Sluigi 254398943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 254498943Sluigi nbytes = nalloc; 254598943Sluigi 254698943Sluigi while (nbytes >= nalloc) { 254798943Sluigi nalloc = nalloc * 2 + 200; 254898943Sluigi nbytes = nalloc; 2549187716Sluigi data = safe_realloc(data, nbytes); 2550119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 255198943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 255298943Sluigi do_pipe ? "DUMMYNET" : "FW"); 255398943Sluigi } 255498943Sluigi 255598943Sluigi if (do_pipe) { 255698943Sluigi list_pipes(data, nbytes, ac, av); 255798943Sluigi goto done; 255898943Sluigi } 255998943Sluigi 256098943Sluigi /* 256198943Sluigi * Count static rules. They have variable size so we 256298943Sluigi * need to scan the list to count them. 256398943Sluigi */ 2564117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2565182823Srik r->rulenum < IPFW_DEFAULT_RULE && (char *)r < lim; 2566117469Sluigi ++nstat, r = NEXT(r) ) 256798943Sluigi ; /* nothing */ 256898943Sluigi 256998943Sluigi /* 257098943Sluigi * Count dynamic rules. This is easier as they have 257198943Sluigi * fixed size. 257298943Sluigi */ 2573117469Sluigi r = NEXT(r); 257498943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2575117469Sluigi n = (char *)r - (char *)data; 257698943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 257798943Sluigi 2578112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2579112189Smaxim bcwidth = pcwidth = 0; 2580117469Sluigi if (show_counters) { 2581117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2582170923Smaxim /* skip rules from another set */ 2583170923Smaxim if (use_set && r->set != use_set - 1) 2584170923Smaxim continue; 2585170923Smaxim 2586112189Smaxim /* packet counter */ 2587115793Sticso width = snprintf(NULL, 0, "%llu", 2588115793Sticso align_uint64(&r->pcnt)); 2589112189Smaxim if (width > pcwidth) 2590112189Smaxim pcwidth = width; 2591112189Smaxim 2592112189Smaxim /* byte counter */ 2593115793Sticso width = snprintf(NULL, 0, "%llu", 2594115793Sticso align_uint64(&r->bcnt)); 2595112189Smaxim if (width > bcwidth) 2596112189Smaxim bcwidth = width; 2597112189Smaxim } 2598112189Smaxim } 2599112189Smaxim if (do_dynamic && ndyn) { 2600112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2601170923Smaxim if (use_set) { 2602170923Smaxim /* skip rules from another set */ 2603171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2604170923Smaxim &set, sizeof(uint8_t)); 2605170923Smaxim if (set != use_set - 1) 2606170923Smaxim continue; 2607170923Smaxim } 2608115793Sticso width = snprintf(NULL, 0, "%llu", 2609115793Sticso align_uint64(&d->pcnt)); 2610112189Smaxim if (width > pcwidth) 2611112189Smaxim pcwidth = width; 2612112189Smaxim 2613115793Sticso width = snprintf(NULL, 0, "%llu", 2614115793Sticso align_uint64(&d->bcnt)); 2615112189Smaxim if (width > bcwidth) 2616112189Smaxim bcwidth = width; 2617112189Smaxim } 2618112189Smaxim } 261998943Sluigi /* if no rule numbers were specified, list all rules */ 262098943Sluigi if (ac == 0) { 2621170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2622170923Smaxim if (use_set && r->set != use_set - 1) 2623170923Smaxim continue; 2624112189Smaxim show_ipfw(r, pcwidth, bcwidth); 2625170923Smaxim } 262698943Sluigi 262798943Sluigi if (do_dynamic && ndyn) { 262898943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 2629170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2630170923Smaxim if (use_set) { 2631171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2632170923Smaxim &set, sizeof(uint8_t)); 2633170923Smaxim if (set != use_set - 1) 2634170923Smaxim continue; 2635170923Smaxim } 2636112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 263798943Sluigi } 2638170923Smaxim } 263998943Sluigi goto done; 264098943Sluigi } 264198943Sluigi 264298943Sluigi /* display specific rules requested on command line */ 264398943Sluigi 264498943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 264598943Sluigi /* convert command line rule # */ 2646117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2647117469Sluigi if (*endptr == '-') 2648117469Sluigi last = strtoul(endptr+1, &endptr, 10); 264998943Sluigi if (*endptr) { 265098943Sluigi exitval = EX_USAGE; 265198943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 265298943Sluigi continue; 265398943Sluigi } 2654117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2655117469Sluigi if (r->rulenum > last) 265698943Sluigi break; 2657170923Smaxim if (use_set && r->set != use_set - 1) 2658170923Smaxim continue; 2659117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2660112189Smaxim show_ipfw(r, pcwidth, bcwidth); 266198943Sluigi seen = 1; 266298943Sluigi } 266398943Sluigi } 266498943Sluigi if (!seen) { 266598943Sluigi /* give precedence to other error(s) */ 266698943Sluigi if (exitval == EX_OK) 266798943Sluigi exitval = EX_UNAVAILABLE; 266898943Sluigi warnx("rule %lu does not exist", rnum); 266998943Sluigi } 267098943Sluigi } 267198943Sluigi 267298943Sluigi if (do_dynamic && ndyn) { 267398943Sluigi printf("## Dynamic rules:\n"); 267498943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2675145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2676117469Sluigi if (*endptr == '-') 2677117469Sluigi last = strtoul(endptr+1, &endptr, 10); 267898943Sluigi if (*endptr) 267998943Sluigi /* already warned */ 268098943Sluigi continue; 268198943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2682115793Sticso uint16_t rulenum; 2683115793Sticso 2684115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2685115793Sticso if (rulenum > rnum) 268698943Sluigi break; 2687170923Smaxim if (use_set) { 2688171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2689170923Smaxim &set, sizeof(uint8_t)); 2690170923Smaxim if (set != use_set - 1) 2691170923Smaxim continue; 2692170923Smaxim } 2693117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2694112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 269598943Sluigi } 269698943Sluigi } 269798943Sluigi } 269898943Sluigi 269998943Sluigi ac = 0; 270098943Sluigi 270198943Sluigidone: 270298943Sluigi free(data); 270398943Sluigi 270498943Sluigi if (exitval != EX_OK) 270598943Sluigi exit(exitval); 2706117469Sluigi#undef NEXT 270798943Sluigi} 270898943Sluigi 270998943Sluigistatic void 271098943Sluigishow_usage(void) 271198943Sluigi{ 271298943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 271398943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 271498943Sluigi); 271598943Sluigi exit(EX_USAGE); 271698943Sluigi} 271798943Sluigi 271898943Sluigistatic void 271998943Sluigihelp(void) 272098943Sluigi{ 2721117328Sluigi fprintf(stderr, 2722117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2723123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2724117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2725117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2726117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2727165648Spiso"nat N config {ip IPADDR|if IFNAME|log|deny_in|same_ports|unreg_only|reset|\n" 2728165648Spiso" reverse|proxy_only|redirect_addr linkspec|\n" 2729165648Spiso" redirect_port linkspec|redirect_proto linkspec}\n" 2730117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2731170923Smaxim"set N {show|list|zero|resetlog|delete} [N{,N}] | flush\n" 2732130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 2733183407Srik"table all {flush | list}\n" 273498943Sluigi"\n" 2735136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2736149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2737149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2738178888Sjulian" pipe N | queue N | nat N | setfib FIB\n" 2739136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 274098943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2741145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2742145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2743130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2744145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2745145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2746117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2747117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2748136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2749145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2750145246Sbrooks" {dst-port|src-port} LIST |\n" 2751117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2752117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2753117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2754178888Sjulian" icmp6types LIST | ext6hdr LIST | flow-id N[,N] | fib FIB |\n" 2755117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2756117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2757136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 275898943Sluigi); 275998943Sluigiexit(0); 276098943Sluigi} 276198943Sluigi 276298943Sluigi 276398943Sluigistatic int 276498943Sluigilookup_host (char *host, struct in_addr *ipaddr) 276598943Sluigi{ 276698943Sluigi struct hostent *he; 276798943Sluigi 276898943Sluigi if (!inet_aton(host, ipaddr)) { 276998943Sluigi if ((he = gethostbyname(host)) == NULL) 277098943Sluigi return(-1); 277198943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 277298943Sluigi } 277398943Sluigi return(0); 277498943Sluigi} 277598943Sluigi 277698943Sluigi/* 277798943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 277898943Sluigi * Update length as appropriate. 277998943Sluigi * The following formats are allowed: 278098943Sluigi * me returns O_IP_*_ME 278198943Sluigi * 1.2.3.4 single IP address 278298943Sluigi * 1.2.3.4:5.6.7.8 address:mask 278398943Sluigi * 1.2.3.4/24 address/mask 278498943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2785117328Sluigi * We can have multiple comma-separated address/mask entries. 278698943Sluigi */ 278798943Sluigistatic void 278898943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 278998943Sluigi{ 2790117328Sluigi int len = 0; 2791117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 279298943Sluigi 279398943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 279498943Sluigi 2795140271Sbrooks if (_substrcmp(av, "any") == 0) 279698943Sluigi return; 279798943Sluigi 2798140271Sbrooks if (_substrcmp(av, "me") == 0) { 279998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 280098943Sluigi return; 280198943Sluigi } 280298943Sluigi 2803140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2804130281Sru char *p = strchr(av + 6, ','); 2805130281Sru 2806130281Sru if (p) 2807130281Sru *p++ = '\0'; 2808130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2809130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2810130281Sru if (p) { 2811130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2812130281Sru d[0] = strtoul(p, NULL, 0); 2813130281Sru } else 2814130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2815130281Sru return; 2816130281Sru } 2817130281Sru 2818117328Sluigi while (av) { 2819117328Sluigi /* 2820117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2821117328Sluigi * ',' indicating another address follows, '{' indicating a 2822117328Sluigi * set of addresses of unspecified size. 2823117328Sluigi */ 2824165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2825117328Sluigi int masklen; 2826187477Sluigi char md, nd = '\0'; 2827117328Sluigi 282898943Sluigi if (p) { 282998943Sluigi md = *p; 283098943Sluigi *p++ = '\0'; 2831165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2832165851Smlaier nd = *t; 2833165851Smlaier *t = '\0'; 2834165851Smlaier } 2835117328Sluigi } else 2836117328Sluigi md = '\0'; 283798943Sluigi 2838117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 283998943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 284098943Sluigi switch (md) { 284198943Sluigi case ':': 2842117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 284398943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 284498943Sluigi break; 284598943Sluigi case '/': 2846117328Sluigi masklen = atoi(p); 2847117328Sluigi if (masklen == 0) 2848117328Sluigi d[1] = htonl(0); /* mask */ 2849117328Sluigi else if (masklen > 32) 285098943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 285198943Sluigi else 2852117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 285398943Sluigi break; 2854117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2855117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2856117328Sluigi *(--p) = md; 2857117328Sluigi break; 2858117328Sluigi 2859117328Sluigi case ',': /* single address plus continuation */ 2860117328Sluigi *(--p) = md; 2861117328Sluigi /* FALLTHROUGH */ 2862117328Sluigi case 0: /* initialization value */ 286398943Sluigi default: 2864117328Sluigi d[1] = htonl(~0); /* force /32 */ 286598943Sluigi break; 286698943Sluigi } 2867117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2868165851Smlaier if (t) 2869165851Smlaier *t = nd; 2870117328Sluigi /* find next separator */ 287198943Sluigi if (p) 2872117328Sluigi p = strpbrk(p, ",{"); 2873117328Sluigi if (p && *p == '{') { 2874117328Sluigi /* 2875117328Sluigi * We have a set of addresses. They are stored as follows: 2876117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2877117328Sluigi * addr is the base address IN HOST FORMAT 2878117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2879117328Sluigi * the next multiple of 32) with bits set 2880117328Sluigi * for each host in the map. 2881117328Sluigi */ 2882117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 288398943Sluigi int low, high; 2884117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 288598943Sluigi 2886117328Sluigi if (len > 0) 2887117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2888117328Sluigi if (i < 24 || i > 31) 2889117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2890117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2891117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 289298943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 289398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2894101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2895117328Sluigi map[i] = 0; /* clear map */ 289698943Sluigi 2897117328Sluigi av = p + 1; 2898117328Sluigi low = d[0] & 0xff; 289998943Sluigi high = low + cmd->o.arg1 - 1; 2900117328Sluigi /* 2901117328Sluigi * Here, i stores the previous value when we specify a range 2902117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2903117328Sluigi * have no previous value. 2904117328Sluigi */ 2905116716Sluigi i = -1; /* previous value in a range */ 290698943Sluigi while (isdigit(*av)) { 290798943Sluigi char *s; 2908117328Sluigi int a = strtol(av, &s, 0); 290998943Sluigi 2910117328Sluigi if (s == av) { /* no parameter */ 2911117328Sluigi if (*av != '}') 2912117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2913117328Sluigi if (i != -1) 2914117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2915117328Sluigi break; 2916117328Sluigi } 2917117328Sluigi if (a < low || a > high) 2918117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 291998943Sluigi a, low, high); 292098943Sluigi a -= low; 2921116716Sluigi if (i == -1) /* no previous in range */ 2922116716Sluigi i = a; 2923116716Sluigi else { /* check that range is valid */ 2924116716Sluigi if (i > a) 2925116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2926116716Sluigi i+low, a+low); 2927116716Sluigi if (*s == '-') 2928116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2929116716Sluigi } 2930116716Sluigi for (; i <= a; i++) 2931117328Sluigi map[i/32] |= 1<<(i & 31); 2932116716Sluigi i = -1; 2933116716Sluigi if (*s == '-') 2934116716Sluigi i = a; 2935117328Sluigi else if (*s == '}') 2936116716Sluigi break; 293798943Sluigi av = s+1; 293898943Sluigi } 293998943Sluigi return; 294098943Sluigi } 2941117328Sluigi av = p; 2942117328Sluigi if (av) /* then *av must be a ',' */ 2943117328Sluigi av++; 294498943Sluigi 2945117328Sluigi /* Check this entry */ 2946117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2947117328Sluigi /* 2948117328Sluigi * 'any' turns the entire list into a NOP. 2949117328Sluigi * 'not any' never matches, so it is removed from the 2950117328Sluigi * list unless it is the only item, in which case we 2951117328Sluigi * report an error. 2952117328Sluigi */ 2953117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2954117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2955117328Sluigi errx(EX_DATAERR, "not any never matches"); 2956117328Sluigi } 2957117328Sluigi /* else do nothing and skip this entry */ 2958128067Smaxim return; 2959117328Sluigi } 2960117328Sluigi /* A single IP can be stored in an optimized format */ 2961117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 296298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2963117328Sluigi return; 2964117328Sluigi } 2965117328Sluigi len += 2; /* two words... */ 2966117328Sluigi d += 2; 2967117328Sluigi } /* end while */ 2968162363Sjhay if (len + 1 > F_LEN_MASK) 2969162363Sjhay errx(EX_DATAERR, "address list too long"); 2970117328Sluigi cmd->o.len |= len+1; 297198943Sluigi} 297298943Sluigi 297398943Sluigi 2974145246Sbrooks/* Try to find ipv6 address by hostname */ 2975145246Sbrooksstatic int 2976145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2977145246Sbrooks{ 2978145246Sbrooks struct hostent *he; 2979145246Sbrooks 2980145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2981145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2982145246Sbrooks return(-1); 2983145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2984145246Sbrooks } 2985145246Sbrooks return(0); 2986145246Sbrooks} 2987145246Sbrooks 2988145246Sbrooks 2989145246Sbrooks/* n2mask sets n bits of the mask */ 2990145246Sbrooksstatic void 2991145246Sbrooksn2mask(struct in6_addr *mask, int n) 2992145246Sbrooks{ 2993145246Sbrooks static int minimask[9] = 2994145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2995145246Sbrooks u_char *p; 2996145246Sbrooks 2997145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2998145246Sbrooks p = (u_char *) mask; 2999145246Sbrooks for (; n > 0; p++, n -= 8) { 3000145246Sbrooks if (n >= 8) 3001145246Sbrooks *p = 0xff; 3002145246Sbrooks else 3003145246Sbrooks *p = minimask[n]; 3004145246Sbrooks } 3005145246Sbrooks return; 3006145246Sbrooks} 3007145246Sbrooks 3008145246Sbrooks 300998943Sluigi/* 3010145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 3011145246Sbrooks * Update length as appropriate. 3012145246Sbrooks * The following formats are allowed: 3013145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 3014145246Sbrooks * me returns O_IP6_*_ME 3015145246Sbrooks * 3016145246Sbrooks * 03f1::234:123:0342 single IP6 addres 3017145246Sbrooks * 03f1::234:123:0342/24 address/mask 3018145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 3019145246Sbrooks * 3020145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 3021145246Sbrooks * are typically random past the initial prefix. 3022145246Sbrooks * Return 1 on success, 0 on failure. 3023145246Sbrooks */ 3024145246Sbrooksstatic int 3025145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 3026145246Sbrooks{ 3027145246Sbrooks int len = 0; 3028145246Sbrooks struct in6_addr *d = &(cmd->addr6); 3029145246Sbrooks /* 3030145246Sbrooks * Needed for multiple address. 3031145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 3032145246Sbrooks */ 3033145246Sbrooks 3034145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 3035145246Sbrooks 3036145246Sbrooks if (strcmp(av, "any") == 0) 3037145246Sbrooks return (1); 3038145246Sbrooks 3039145246Sbrooks 3040145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 3041145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3042145246Sbrooks return (1); 3043145246Sbrooks } 3044145246Sbrooks 3045145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 3046145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3047145246Sbrooks return (1); 3048145246Sbrooks } 3049145246Sbrooks 3050145246Sbrooks av = strdup(av); 3051145246Sbrooks while (av) { 3052145246Sbrooks /* 3053145246Sbrooks * After the address we can have '/' indicating a mask, 3054145246Sbrooks * or ',' indicating another address follows. 3055145246Sbrooks */ 3056145246Sbrooks 3057145246Sbrooks char *p; 3058145246Sbrooks int masklen; 3059145246Sbrooks char md = '\0'; 3060145246Sbrooks 3061145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 3062145246Sbrooks md = *p; /* save the separator */ 3063145246Sbrooks *p = '\0'; /* terminate address string */ 3064145246Sbrooks p++; /* and skip past it */ 3065145246Sbrooks } 3066145246Sbrooks /* now p points to NULL, mask or next entry */ 3067145246Sbrooks 3068145246Sbrooks /* lookup stores address in *d as a side effect */ 3069145246Sbrooks if (lookup_host6(av, d) != 0) { 3070145246Sbrooks /* XXX: failed. Free memory and go */ 3071145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 3072145246Sbrooks } 3073145246Sbrooks /* next, look at the mask, if any */ 3074145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 3075145246Sbrooks if (masklen > 128 || masklen < 0) 3076145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 3077145246Sbrooks else 3078145246Sbrooks n2mask(&d[1], masklen); 3079145246Sbrooks 3080145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 3081145246Sbrooks 3082145246Sbrooks /* find next separator */ 3083145246Sbrooks 3084145246Sbrooks if (md == '/') { /* find separator past the mask */ 3085145246Sbrooks p = strpbrk(p, ","); 3086145246Sbrooks if (p != NULL) 3087145246Sbrooks p++; 3088145246Sbrooks } 3089145246Sbrooks av = p; 3090145246Sbrooks 3091145246Sbrooks /* Check this entry */ 3092145246Sbrooks if (masklen == 0) { 3093145246Sbrooks /* 3094145246Sbrooks * 'any' turns the entire list into a NOP. 3095145246Sbrooks * 'not any' never matches, so it is removed from the 3096145246Sbrooks * list unless it is the only item, in which case we 3097145246Sbrooks * report an error. 3098145246Sbrooks */ 3099145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3100145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3101145246Sbrooks continue; 3102145246Sbrooks } 3103145246Sbrooks 3104145246Sbrooks /* 3105145246Sbrooks * A single IP can be stored alone 3106145246Sbrooks */ 3107145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3108145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3109145246Sbrooks break; 3110145246Sbrooks } 3111145246Sbrooks 3112145246Sbrooks /* Update length and pointer to arguments */ 3113145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3114145246Sbrooks d += 2; 3115145246Sbrooks } /* end while */ 3116145246Sbrooks 3117145246Sbrooks /* 3118145246Sbrooks * Total length of the command, remember that 1 is the size of 3119145246Sbrooks * the base command. 3120145246Sbrooks */ 3121162363Sjhay if (len + 1 > F_LEN_MASK) 3122162363Sjhay errx(EX_DATAERR, "address list too long"); 3123145246Sbrooks cmd->o.len |= len+1; 3124145246Sbrooks free(av); 3125145246Sbrooks return (1); 3126145246Sbrooks} 3127145246Sbrooks 3128145246Sbrooks/* 3129145246Sbrooks * fills command for ipv6 flow-id filtering 3130145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3131145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3132145246Sbrooks * additional flow-id we want to filter, the basic is 1 3133145246Sbrooks */ 3134187477Sluigistatic void 3135145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3136145246Sbrooks{ 3137145246Sbrooks u_int32_t type; /* Current flow number */ 3138145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3139145246Sbrooks char *s = av; 3140145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3141145246Sbrooks 3142145246Sbrooks while (s) { 3143145246Sbrooks av = strsep( &s, ",") ; 3144145246Sbrooks type = strtoul(av, &av, 0); 3145145246Sbrooks if (*av != ',' && *av != '\0') 3146145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3147145246Sbrooks if (type > 0xfffff) 3148145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3149145246Sbrooks cmd->d[nflow] |= type; 3150145246Sbrooks nflow++; 3151145246Sbrooks } 3152145246Sbrooks if( nflow > 0 ) { 3153145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3154145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3155145246Sbrooks cmd->o.arg1 = nflow; 3156145246Sbrooks } 3157145246Sbrooks else { 3158145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3159145246Sbrooks } 3160145246Sbrooks} 3161145246Sbrooks 3162145246Sbrooksstatic ipfw_insn * 3163145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3164145246Sbrooks{ 3165145246Sbrooks 3166145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3167187477Sluigi if (F_LEN(cmd) == 0) { /* any */ 3168187477Sluigi } else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3169145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3170145246Sbrooks } else if (F_LEN(cmd) == 3171145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3172145246Sbrooks /* single IP, no mask*/ 3173145246Sbrooks cmd->opcode = O_IP6_SRC; 3174145246Sbrooks } else { /* addr/mask opt */ 3175145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3176145246Sbrooks } 3177145246Sbrooks return cmd; 3178145246Sbrooks} 3179145246Sbrooks 3180145246Sbrooksstatic ipfw_insn * 3181145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3182145246Sbrooks{ 3183145246Sbrooks 3184145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3185187477Sluigi if (F_LEN(cmd) == 0) { /* any */ 3186187477Sluigi } else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3187145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3188145246Sbrooks } else if (F_LEN(cmd) == 3189145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3190145246Sbrooks /* single IP, no mask*/ 3191145246Sbrooks cmd->opcode = O_IP6_DST; 3192145246Sbrooks } else { /* addr/mask opt */ 3193145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3194145246Sbrooks } 3195145246Sbrooks return cmd; 3196145246Sbrooks} 3197145246Sbrooks 3198145246Sbrooks 3199145246Sbrooks/* 320098943Sluigi * helper function to process a set of flags and set bits in the 320198943Sluigi * appropriate masks. 320298943Sluigi */ 320398943Sluigistatic void 320498943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 320598943Sluigi struct _s_x *flags, char *p) 320698943Sluigi{ 3207117328Sluigi uint8_t set=0, clear=0; 320898943Sluigi 320998943Sluigi while (p && *p) { 321098943Sluigi char *q; /* points to the separator */ 321198943Sluigi int val; 3212117328Sluigi uint8_t *which; /* mask we are working on */ 321398943Sluigi 321498943Sluigi if (*p == '!') { 321598943Sluigi p++; 321698943Sluigi which = &clear; 321798943Sluigi } else 321898943Sluigi which = &set; 321998943Sluigi q = strchr(p, ','); 322098943Sluigi if (q) 322198943Sluigi *q++ = '\0'; 322298943Sluigi val = match_token(flags, p); 322398943Sluigi if (val <= 0) 322498943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3225117328Sluigi *which |= (uint8_t)val; 322698943Sluigi p = q; 322798943Sluigi } 322898943Sluigi cmd->opcode = opcode; 322998943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 323098943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 323198943Sluigi} 323298943Sluigi 323398943Sluigi 323498943Sluigistatic void 323598943Sluigidelete(int ac, char *av[]) 323698943Sluigi{ 3237117328Sluigi uint32_t rulenum; 3238117469Sluigi struct dn_pipe p; 323998943Sluigi int i; 324098943Sluigi int exitval = EX_OK; 3241101628Sluigi int do_set = 0; 324298943Sluigi 3243117469Sluigi memset(&p, 0, sizeof p); 324498943Sluigi 324598943Sluigi av++; ac--; 3246130013Scsjp NEED1("missing rule specification"); 3247140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3248170923Smaxim /* Do not allow using the following syntax: 3249170923Smaxim * ipfw set N delete set M 3250170923Smaxim */ 3251170923Smaxim if (use_set) 3252170923Smaxim errx(EX_DATAERR, "invalid syntax"); 3253101978Sluigi do_set = 1; /* delete set */ 3254101628Sluigi ac--; av++; 3255101978Sluigi } 325698943Sluigi 325798943Sluigi /* Rule number */ 325898943Sluigi while (ac && isdigit(**av)) { 325998943Sluigi i = atoi(*av); av++; ac--; 3260165648Spiso if (do_nat) { 3261165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3262165648Spiso if (exitval) { 3263165648Spiso exitval = EX_UNAVAILABLE; 3264165648Spiso warn("rule %u not available", i); 3265165648Spiso } 3266165648Spiso } else if (do_pipe) { 326798943Sluigi if (do_pipe == 1) 3268117469Sluigi p.pipe_nr = i; 326998943Sluigi else 3270117469Sluigi p.fs.fs_nr = i; 3271117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 327298943Sluigi if (i) { 327398943Sluigi exitval = 1; 327498943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3275117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 327698943Sluigi } 327798943Sluigi } else { 3278170923Smaxim if (use_set) 3279170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 3280170923Smaxim ((use_set - 1) << 16); 3281170923Smaxim else 3282101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3283117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 328498943Sluigi if (i) { 328598943Sluigi exitval = EX_UNAVAILABLE; 328698943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 328798943Sluigi rulenum); 328898943Sluigi } 328998943Sluigi } 329098943Sluigi } 329198943Sluigi if (exitval != EX_OK) 329298943Sluigi exit(exitval); 329398943Sluigi} 329498943Sluigi 329598943Sluigi 329698943Sluigi/* 329798943Sluigi * fill the interface structure. We do not check the name as we can 329898943Sluigi * create interfaces dynamically, so checking them at insert time 329998943Sluigi * makes relatively little sense. 3300121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3301121816Sbrooks * patterns which match interfaces. 330298943Sluigi */ 330398943Sluigistatic void 330498943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 330598943Sluigi{ 330698943Sluigi cmd->name[0] = '\0'; 330798943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 330898943Sluigi 330998943Sluigi /* Parse the interface or address */ 3310140271Sbrooks if (strcmp(arg, "any") == 0) 331198943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 331298943Sluigi else if (!isdigit(*arg)) { 3313121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3314121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 331598943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 331698943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 331798943Sluigi} 331898943Sluigi 3319165648Spiso/* 3320165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3321165648Spiso * 3322165648Spiso * n->ip ip address of interface "ifn" 3323165648Spiso * n->if_name copy of interface name "ifn" 3324165648Spiso */ 332598943Sluigistatic void 3326165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3327165648Spiso{ 3328165648Spiso size_t needed; 3329165648Spiso int mib[6]; 3330165648Spiso char *buf, *lim, *next; 3331165648Spiso struct if_msghdr *ifm; 3332165648Spiso struct ifa_msghdr *ifam; 3333165648Spiso struct sockaddr_dl *sdl; 3334165648Spiso struct sockaddr_in *sin; 3335165648Spiso int ifIndex, ifMTU; 3336165648Spiso 3337165648Spiso mib[0] = CTL_NET; 3338165648Spiso mib[1] = PF_ROUTE; 3339165648Spiso mib[2] = 0; 3340165648Spiso mib[3] = AF_INET; 3341165648Spiso mib[4] = NET_RT_IFLIST; 3342165648Spiso mib[5] = 0; 3343165648Spiso/* 3344165648Spiso * Get interface data. 3345165648Spiso */ 3346165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3347165648Spiso err(1, "iflist-sysctl-estimate"); 3348187716Sluigi buf = safe_calloc(1, needed); 3349165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3350165648Spiso err(1, "iflist-sysctl-get"); 3351165648Spiso lim = buf + needed; 3352165648Spiso/* 3353165648Spiso * Loop through interfaces until one with 3354165648Spiso * given name is found. This is done to 3355165648Spiso * find correct interface index for routing 3356165648Spiso * message processing. 3357165648Spiso */ 3358165648Spiso ifIndex = 0; 3359165648Spiso next = buf; 3360165648Spiso while (next < lim) { 3361165648Spiso ifm = (struct if_msghdr *)next; 3362165648Spiso next += ifm->ifm_msglen; 3363165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3364165648Spiso if (verbose) 3365165648Spiso warnx("routing message version %d " 3366165648Spiso "not understood", ifm->ifm_version); 3367165648Spiso continue; 3368165648Spiso } 3369165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3370165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3371165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3372165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3373165648Spiso ifIndex = ifm->ifm_index; 3374165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3375165648Spiso break; 3376165648Spiso } 3377165648Spiso } 3378165648Spiso } 3379165648Spiso if (!ifIndex) 3380165648Spiso errx(1, "unknown interface name %s", ifn); 3381165648Spiso/* 3382165648Spiso * Get interface address. 3383165648Spiso */ 3384165648Spiso sin = NULL; 3385165648Spiso while (next < lim) { 3386165648Spiso ifam = (struct ifa_msghdr *)next; 3387165648Spiso next += ifam->ifam_msglen; 3388165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3389165648Spiso if (verbose) 3390165648Spiso warnx("routing message version %d " 3391165648Spiso "not understood", ifam->ifam_version); 3392165648Spiso continue; 3393165648Spiso } 3394165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3395165648Spiso break; 3396165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3397165648Spiso int i; 3398165648Spiso char *cp = (char *)(ifam + 1); 3399165648Spiso 3400165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3401165648Spiso if (ifam->ifam_addrs & i) 3402165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3403165648Spiso } 3404165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3405165648Spiso sin = (struct sockaddr_in *)cp; 3406165648Spiso break; 3407165648Spiso } 3408165648Spiso } 3409165648Spiso } 3410165648Spiso if (sin == NULL) 3411165648Spiso errx(1, "%s: cannot get interface address", ifn); 3412165648Spiso 3413165648Spiso n->ip = sin->sin_addr; 3414165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3415165648Spiso 3416165648Spiso free(buf); 3417165648Spiso} 3418165648Spiso 3419165648Spiso/* 3420165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3421165648Spiso * it would be better to move them outside natd.c, in a file 3422165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3423165648Spiso * with it. 3424165648Spiso */ 3425165648Spiso 3426165648Spiso/* 3427165648Spiso * Definition of a port range, and macros to deal with values. 3428165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3429165648Spiso * LO 16-bits == number of ports in range 3430165648Spiso * NOTES: - Port values are not stored in network byte order. 3431165648Spiso */ 3432165648Spiso 3433165648Spiso#define port_range u_long 3434165648Spiso 3435165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3436165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3437165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3438165648Spiso 3439165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3440165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3441165648Spiso 3442165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3443165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3444165648Spiso 3445165648Spisostatic void 3446165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3447165648Spiso{ 3448165648Spiso struct hostent* hp; 3449165648Spiso 3450165648Spiso if (inet_aton (str, addr)) 3451165648Spiso return; 3452165648Spiso 3453165648Spiso hp = gethostbyname (str); 3454165648Spiso if (!hp) 3455165648Spiso errx (1, "unknown host %s", str); 3456165648Spiso 3457165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3458165648Spiso} 3459165648Spiso 3460165648Spisostatic int 3461165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3462165648Spiso{ 3463165648Spiso char* sep; 3464165648Spiso struct servent* sp; 3465165648Spiso char* end; 3466165648Spiso u_short loPort; 3467165648Spiso u_short hiPort; 3468165648Spiso 3469165648Spiso /* First see if this is a service, return corresponding port if so. */ 3470165648Spiso sp = getservbyname (str,proto); 3471165648Spiso if (sp) { 3472165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3473165648Spiso SETNUMPORTS(*portRange, 1); 3474165648Spiso return 0; 3475165648Spiso } 3476165648Spiso 3477165648Spiso /* Not a service, see if it's a single port or port range. */ 3478165648Spiso sep = strchr (str, '-'); 3479165648Spiso if (sep == NULL) { 3480165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3481165648Spiso if (end != str) { 3482165648Spiso /* Single port. */ 3483165648Spiso SETNUMPORTS(*portRange, 1); 3484165648Spiso return 0; 3485165648Spiso } 3486165648Spiso 3487165648Spiso /* Error in port range field. */ 3488165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3489165648Spiso } 3490165648Spiso 3491165648Spiso /* Port range, get the values and sanity check. */ 3492165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3493165648Spiso SETLOPORT(*portRange, loPort); 3494165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3495165648Spiso if (loPort <= hiPort) 3496165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3497165648Spiso 3498165648Spiso if (GETNUMPORTS(*portRange) == 0) 3499165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3500165648Spiso 3501165648Spiso return 0; 3502165648Spiso} 3503165648Spiso 3504165648Spisostatic int 3505165648SpisoStrToProto (const char* str) 3506165648Spiso{ 3507165648Spiso if (!strcmp (str, "tcp")) 3508165648Spiso return IPPROTO_TCP; 3509165648Spiso 3510165648Spiso if (!strcmp (str, "udp")) 3511165648Spiso return IPPROTO_UDP; 3512165648Spiso 3513165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3514165648Spiso} 3515165648Spiso 3516165648Spisostatic int 3517165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3518165648Spiso port_range *portRange) 3519165648Spiso{ 3520165648Spiso char* ptr; 3521165648Spiso 3522165648Spiso ptr = strchr (str, ':'); 3523165648Spiso if (!ptr) 3524165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3525165648Spiso 3526165648Spiso *ptr = '\0'; 3527165648Spiso ++ptr; 3528165648Spiso 3529165648Spiso StrToAddr (str, addr); 3530165648Spiso return StrToPortRange (ptr, proto, portRange); 3531165648Spiso} 3532165648Spiso 3533165648Spiso/* End of stuff taken from natd.c. */ 3534165648Spiso 3535165648Spiso#define INC_ARGCV() do { \ 3536165648Spiso (*_av)++; \ 3537165648Spiso (*_ac)--; \ 3538165648Spiso av = *_av; \ 3539165648Spiso ac = *_ac; \ 3540165648Spiso} while(0) 3541165648Spiso 3542165648Spiso/* 3543165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3544165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3545165648Spiso * and SetupProtoRedirect() from natd.c. 3546165648Spiso * 3547165648Spiso * Every setup_* function fills at least one redirect entry 3548165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3549165648Spiso * in buf. 3550165648Spiso * 3551165648Spiso * The format of data in buf is: 3552165648Spiso * 3553165648Spiso * 3554165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3555165648Spiso * 3556165648Spiso * ------------------------------------- ------------ 3557165648Spiso * | | .....X ... | | | | ..... 3558165648Spiso * ------------------------------------- ...... ------------ 3559165648Spiso * ^ 3560165648Spiso * spool_cnt n=0 ...... n=(X-1) 3561165648Spiso * 3562165648Spiso * len points to the amount of available space in buf 3563165648Spiso * space counts the memory consumed by every function 3564165648Spiso * 3565165648Spiso * XXX - Every function get all the argv params so it 3566165648Spiso * has to check, in optional parameters, that the next 3567165648Spiso * args is a valid option for the redir entry and not 3568165648Spiso * another token. Only redir_port and redir_proto are 3569165648Spiso * affected by this. 3570165648Spiso */ 3571165648Spiso 3572165648Spisostatic int 3573165648Spisosetup_redir_addr(char *spool_buf, int len, 3574165648Spiso int *_ac, char ***_av) 3575165648Spiso{ 3576165648Spiso char **av, *sep; /* Token separator. */ 3577165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3578165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3579183208Srik int ac, space, lsnat; 3580165648Spiso struct cfg_redir *r; 3581165648Spiso struct cfg_spool *tmp; 3582165648Spiso 3583165648Spiso av = *_av; 3584165648Spiso ac = *_ac; 3585165648Spiso space = 0; 3586165648Spiso lsnat = 0; 3587165648Spiso if (len >= SOF_REDIR) { 3588165648Spiso r = (struct cfg_redir *)spool_buf; 3589165648Spiso /* Skip cfg_redir at beginning of buf. */ 3590165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3591165648Spiso space = SOF_REDIR; 3592165648Spiso len -= SOF_REDIR; 3593165648Spiso } else 3594165648Spiso goto nospace; 3595165648Spiso r->mode = REDIR_ADDR; 3596165648Spiso /* Extract local address. */ 3597165648Spiso if (ac == 0) 3598165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3599165648Spiso sep = strchr(*av, ','); 3600165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3601165648Spiso r->laddr.s_addr = INADDR_NONE; 3602165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3603165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3604165648Spiso lsnat = 1; 3605165648Spiso } else 3606165648Spiso StrToAddr(*av, &r->laddr); 3607165648Spiso INC_ARGCV(); 3608165648Spiso 3609165648Spiso /* Extract public address. */ 3610165648Spiso if (ac == 0) 3611165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3612165648Spiso StrToAddr(*av, &r->paddr); 3613165648Spiso INC_ARGCV(); 3614165648Spiso 3615165648Spiso /* Setup LSNAT server pool. */ 3616165648Spiso if (sep) { 3617165648Spiso sep = strtok(tmp_spool_buf, ","); 3618165648Spiso while (sep != NULL) { 3619165648Spiso tmp = (struct cfg_spool *)spool_buf; 3620165648Spiso if (len < SOF_SPOOL) 3621165648Spiso goto nospace; 3622165648Spiso len -= SOF_SPOOL; 3623165648Spiso space += SOF_SPOOL; 3624165648Spiso StrToAddr(sep, &tmp->addr); 3625165648Spiso tmp->port = ~0; 3626165648Spiso r->spool_cnt++; 3627165648Spiso /* Point to the next possible cfg_spool. */ 3628165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3629165648Spiso sep = strtok(NULL, ","); 3630165648Spiso } 3631165648Spiso } 3632165648Spiso return(space); 3633165648Spisonospace: 3634165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3635165648Spiso} 3636165648Spiso 3637165648Spisostatic int 3638165648Spisosetup_redir_port(char *spool_buf, int len, 3639165648Spiso int *_ac, char ***_av) 3640165648Spiso{ 3641165648Spiso char **av, *sep, *protoName; 3642165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3643165648Spiso int ac, space, lsnat; 3644165648Spiso struct cfg_redir *r; 3645165648Spiso struct cfg_spool *tmp; 3646165648Spiso u_short numLocalPorts; 3647165648Spiso port_range portRange; 3648165648Spiso 3649165648Spiso av = *_av; 3650165648Spiso ac = *_ac; 3651165648Spiso space = 0; 3652165648Spiso lsnat = 0; 3653165648Spiso numLocalPorts = 0; 3654165648Spiso 3655165648Spiso if (len >= SOF_REDIR) { 3656165648Spiso r = (struct cfg_redir *)spool_buf; 3657165648Spiso /* Skip cfg_redir at beginning of buf. */ 3658165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3659165648Spiso space = SOF_REDIR; 3660165648Spiso len -= SOF_REDIR; 3661165648Spiso } else 3662165648Spiso goto nospace; 3663165648Spiso r->mode = REDIR_PORT; 3664165648Spiso /* 3665165648Spiso * Extract protocol. 3666165648Spiso */ 3667165648Spiso if (ac == 0) 3668165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3669165648Spiso r->proto = StrToProto(*av); 3670165648Spiso protoName = *av; 3671165648Spiso INC_ARGCV(); 3672165648Spiso 3673165648Spiso /* 3674165648Spiso * Extract local address. 3675165648Spiso */ 3676165648Spiso if (ac == 0) 3677165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3678165648Spiso 3679165648Spiso sep = strchr(*av, ','); 3680165648Spiso /* LSNAT redirection syntax. */ 3681165648Spiso if (sep) { 3682165648Spiso r->laddr.s_addr = INADDR_NONE; 3683165648Spiso r->lport = ~0; 3684165648Spiso numLocalPorts = 1; 3685165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3686165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3687165648Spiso lsnat = 1; 3688165648Spiso } else { 3689165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3690165648Spiso &portRange) != 0) 3691165648Spiso errx(EX_DATAERR, "redirect_port:" 3692165648Spiso "invalid local port range"); 3693165648Spiso 3694165648Spiso r->lport = GETLOPORT(portRange); 3695165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3696165648Spiso } 3697165648Spiso INC_ARGCV(); 3698165648Spiso 3699165648Spiso /* 3700165648Spiso * Extract public port and optionally address. 3701165648Spiso */ 3702165648Spiso if (ac == 0) 3703165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3704165648Spiso 3705165648Spiso sep = strchr (*av, ':'); 3706165648Spiso if (sep) { 3707165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3708165648Spiso &portRange) != 0) 3709165648Spiso errx(EX_DATAERR, "redirect_port:" 3710165648Spiso "invalid public port range"); 3711165648Spiso } else { 3712165648Spiso r->paddr.s_addr = INADDR_ANY; 3713165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3714165648Spiso errx(EX_DATAERR, "redirect_port:" 3715165648Spiso "invalid public port range"); 3716165648Spiso } 3717165648Spiso 3718165648Spiso r->pport = GETLOPORT(portRange); 3719165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3720165648Spiso INC_ARGCV(); 3721165648Spiso 3722165648Spiso /* 3723165648Spiso * Extract remote address and optionally port. 3724165648Spiso */ 3725165648Spiso /* 3726165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3727165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3728165648Spiso */ 3729165648Spiso if (ac != 0 && !isalpha(**av)) { 3730165648Spiso sep = strchr (*av, ':'); 3731165648Spiso if (sep) { 3732165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3733165648Spiso &portRange) != 0) 3734165648Spiso errx(EX_DATAERR, "redirect_port:" 3735165648Spiso "invalid remote port range"); 3736165648Spiso } else { 3737165648Spiso SETLOPORT(portRange, 0); 3738165648Spiso SETNUMPORTS(portRange, 1); 3739165648Spiso StrToAddr (*av, &r->raddr); 3740165648Spiso } 3741165648Spiso INC_ARGCV(); 3742165648Spiso } else { 3743165648Spiso SETLOPORT(portRange, 0); 3744165648Spiso SETNUMPORTS(portRange, 1); 3745165648Spiso r->raddr.s_addr = INADDR_ANY; 3746165648Spiso } 3747165648Spiso r->rport = GETLOPORT(portRange); 3748165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3749165648Spiso 3750165648Spiso /* 3751165648Spiso * Make sure port ranges match up, then add the redirect ports. 3752165648Spiso */ 3753165648Spiso if (numLocalPorts != r->pport_cnt) 3754165648Spiso errx(EX_DATAERR, "redirect_port:" 3755165648Spiso "port ranges must be equal in size"); 3756165648Spiso 3757165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3758165648Spiso if (r->rport_cnt != numLocalPorts && 3759165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3760165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3761165648Spiso "be 0 or equal to local port range in size"); 3762165648Spiso 3763165648Spiso /* 3764165648Spiso * Setup LSNAT server pool. 3765165648Spiso */ 3766165648Spiso if (lsnat) { 3767165648Spiso sep = strtok(tmp_spool_buf, ","); 3768165648Spiso while (sep != NULL) { 3769165648Spiso tmp = (struct cfg_spool *)spool_buf; 3770165648Spiso if (len < SOF_SPOOL) 3771165648Spiso goto nospace; 3772165648Spiso len -= SOF_SPOOL; 3773165648Spiso space += SOF_SPOOL; 3774165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3775165648Spiso &portRange) != 0) 3776165648Spiso errx(EX_DATAERR, "redirect_port:" 3777165648Spiso "invalid local port range"); 3778165648Spiso if (GETNUMPORTS(portRange) != 1) 3779165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3780165648Spiso "must be single in this context"); 3781165648Spiso tmp->port = GETLOPORT(portRange); 3782165648Spiso r->spool_cnt++; 3783165648Spiso /* Point to the next possible cfg_spool. */ 3784165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3785165648Spiso sep = strtok(NULL, ","); 3786165648Spiso } 3787165648Spiso } 3788165648Spiso return (space); 3789165648Spisonospace: 3790165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3791165648Spiso} 3792165648Spiso 3793165648Spisostatic int 3794165648Spisosetup_redir_proto(char *spool_buf, int len, 3795165648Spiso int *_ac, char ***_av) 3796165648Spiso{ 3797165648Spiso char **av; 3798183208Srik int ac, space; 3799165648Spiso struct protoent *protoent; 3800165648Spiso struct cfg_redir *r; 3801165648Spiso 3802165648Spiso av = *_av; 3803165648Spiso ac = *_ac; 3804165648Spiso if (len >= SOF_REDIR) { 3805165648Spiso r = (struct cfg_redir *)spool_buf; 3806165648Spiso /* Skip cfg_redir at beginning of buf. */ 3807165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3808165648Spiso space = SOF_REDIR; 3809165648Spiso len -= SOF_REDIR; 3810165648Spiso } else 3811165648Spiso goto nospace; 3812165648Spiso r->mode = REDIR_PROTO; 3813165648Spiso /* 3814165648Spiso * Extract protocol. 3815165648Spiso */ 3816165648Spiso if (ac == 0) 3817165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3818165648Spiso 3819165648Spiso protoent = getprotobyname(*av); 3820165648Spiso if (protoent == NULL) 3821165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3822165648Spiso else 3823165648Spiso r->proto = protoent->p_proto; 3824165648Spiso 3825165648Spiso INC_ARGCV(); 3826165648Spiso 3827165648Spiso /* 3828165648Spiso * Extract local address. 3829165648Spiso */ 3830165648Spiso if (ac == 0) 3831165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3832165648Spiso else 3833165648Spiso StrToAddr(*av, &r->laddr); 3834165648Spiso 3835165648Spiso INC_ARGCV(); 3836165648Spiso 3837165648Spiso /* 3838165648Spiso * Extract optional public address. 3839165648Spiso */ 3840165648Spiso if (ac == 0) { 3841165648Spiso r->paddr.s_addr = INADDR_ANY; 3842165648Spiso r->raddr.s_addr = INADDR_ANY; 3843165648Spiso } else { 3844165648Spiso /* see above in setup_redir_port() */ 3845165648Spiso if (!isalpha(**av)) { 3846165648Spiso StrToAddr(*av, &r->paddr); 3847165648Spiso INC_ARGCV(); 3848165648Spiso 3849165648Spiso /* 3850165648Spiso * Extract optional remote address. 3851165648Spiso */ 3852165648Spiso /* see above in setup_redir_port() */ 3853165648Spiso if (ac!=0 && !isalpha(**av)) { 3854165648Spiso StrToAddr(*av, &r->raddr); 3855165648Spiso INC_ARGCV(); 3856165648Spiso } 3857165648Spiso } 3858165648Spiso } 3859165648Spiso return (space); 3860165648Spisonospace: 3861165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3862165648Spiso} 3863165648Spiso 3864165648Spisostatic void 3865183890Smaximshow_nat(int ac, char **av); 3866183890Smaxim 3867183890Smaximstatic void 3868187477Sluigiprint_nat_config(unsigned char *buf) 3869187477Sluigi{ 3870165648Spiso struct cfg_nat *n; 3871165648Spiso int i, cnt, flag, off; 3872165648Spiso struct cfg_redir *t; 3873165648Spiso struct cfg_spool *s; 3874165648Spiso struct protoent *p; 3875165648Spiso 3876165648Spiso n = (struct cfg_nat *)buf; 3877165648Spiso flag = 1; 3878165648Spiso off = sizeof(*n); 3879165648Spiso printf("ipfw nat %u config", n->id); 3880165648Spiso if (strlen(n->if_name) != 0) 3881165648Spiso printf(" if %s", n->if_name); 3882165648Spiso else if (n->ip.s_addr != 0) 3883165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3884165648Spiso while (n->mode != 0) { 3885165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3886165648Spiso printf(" log"); 3887165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3888165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3889165648Spiso printf(" deny_in"); 3890165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3891165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3892165648Spiso printf(" same_ports"); 3893165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3894165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3895165648Spiso printf(" unreg_only"); 3896165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3897165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3898165648Spiso printf(" reset"); 3899165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3900165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3901165648Spiso printf(" reverse"); 3902165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3903165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3904165648Spiso printf(" proxy_only"); 3905165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3906165648Spiso } 3907165648Spiso } 3908165648Spiso /* Print all the redirect's data configuration. */ 3909165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3910165648Spiso t = (struct cfg_redir *)&buf[off]; 3911165648Spiso off += SOF_REDIR; 3912165648Spiso switch (t->mode) { 3913165648Spiso case REDIR_ADDR: 3914165648Spiso printf(" redirect_addr"); 3915165648Spiso if (t->spool_cnt == 0) 3916165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3917165648Spiso else 3918165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3919165648Spiso s = (struct cfg_spool *)&buf[off]; 3920165648Spiso if (i) 3921165648Spiso printf(","); 3922165648Spiso else 3923165648Spiso printf(" "); 3924165648Spiso printf("%s", inet_ntoa(s->addr)); 3925165648Spiso off += SOF_SPOOL; 3926165648Spiso } 3927165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3928165648Spiso break; 3929165648Spiso case REDIR_PORT: 3930165648Spiso p = getprotobynumber(t->proto); 3931165648Spiso printf(" redirect_port %s ", p->p_name); 3932165648Spiso if (!t->spool_cnt) { 3933165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3934165648Spiso if (t->pport_cnt > 1) 3935165648Spiso printf("-%u", t->lport + 3936165648Spiso t->pport_cnt - 1); 3937165648Spiso } else 3938165648Spiso for (i=0; i < t->spool_cnt; i++) { 3939165648Spiso s = (struct cfg_spool *)&buf[off]; 3940165648Spiso if (i) 3941165648Spiso printf(","); 3942165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3943165648Spiso s->port); 3944165648Spiso off += SOF_SPOOL; 3945165648Spiso } 3946165648Spiso 3947165648Spiso printf(" "); 3948165648Spiso if (t->paddr.s_addr) 3949165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3950165648Spiso printf("%u", t->pport); 3951165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3952165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3953165648Spiso 3954165648Spiso if (t->raddr.s_addr) { 3955165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3956165648Spiso if (t->rport) { 3957165648Spiso printf(":%u", t->rport); 3958165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3959165648Spiso printf("-%u", t->rport + 3960165648Spiso t->rport_cnt - 1); 3961165648Spiso } 3962165648Spiso } 3963165648Spiso break; 3964165648Spiso case REDIR_PROTO: 3965165648Spiso p = getprotobynumber(t->proto); 3966165648Spiso printf(" redirect_proto %s %s", p->p_name, 3967165648Spiso inet_ntoa(t->laddr)); 3968165648Spiso if (t->paddr.s_addr != 0) { 3969165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3970165648Spiso if (t->raddr.s_addr) 3971165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3972165648Spiso } 3973165648Spiso break; 3974165648Spiso default: 3975165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3976165648Spiso break; 3977165648Spiso } 3978165648Spiso } 3979165648Spiso printf("\n"); 3980165648Spiso} 3981165648Spiso 3982165648Spisostatic void 3983165648Spisoconfig_nat(int ac, char **av) 3984165648Spiso{ 3985165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3986165648Spiso int i, len, off, tok; 3987165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3988165648Spiso 3989165648Spiso len = NAT_BUF_LEN; 3990165648Spiso /* Offset in buf: save space for n at the beginning. */ 3991165648Spiso off = sizeof(*n); 3992165648Spiso memset(buf, 0, sizeof(buf)); 3993165648Spiso n = (struct cfg_nat *)buf; 3994165648Spiso 3995165648Spiso av++; ac--; 3996165648Spiso /* Nat id. */ 3997165648Spiso if (ac && isdigit(**av)) { 3998165648Spiso id = *av; 3999165648Spiso i = atoi(*av); 4000165648Spiso ac--; av++; 4001165648Spiso n->id = i; 4002165648Spiso } else 4003165648Spiso errx(EX_DATAERR, "missing nat id"); 4004165648Spiso if (ac == 0) 4005165648Spiso errx(EX_DATAERR, "missing option"); 4006165648Spiso 4007165648Spiso while (ac > 0) { 4008165648Spiso tok = match_token(nat_params, *av); 4009165648Spiso ac--; av++; 4010165648Spiso switch (tok) { 4011165648Spiso case TOK_IP: 4012165648Spiso if (ac == 0) 4013165648Spiso errx(EX_DATAERR, "missing option"); 4014165648Spiso if (!inet_aton(av[0], &(n->ip))) 4015165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 4016165648Spiso av[0]); 4017165648Spiso ac--; av++; 4018165648Spiso break; 4019165648Spiso case TOK_IF: 4020175511Smaxim if (ac == 0) 4021175511Smaxim errx(EX_DATAERR, "missing option"); 4022165648Spiso set_addr_dynamic(av[0], n); 4023165648Spiso ac--; av++; 4024165648Spiso break; 4025165648Spiso case TOK_ALOG: 4026165648Spiso n->mode |= PKT_ALIAS_LOG; 4027165648Spiso break; 4028165648Spiso case TOK_DENY_INC: 4029165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 4030165648Spiso break; 4031165648Spiso case TOK_SAME_PORTS: 4032165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 4033165648Spiso break; 4034165648Spiso case TOK_UNREG_ONLY: 4035165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 4036165648Spiso break; 4037165648Spiso case TOK_RESET_ADDR: 4038165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 4039165648Spiso break; 4040165648Spiso case TOK_ALIAS_REV: 4041165648Spiso n->mode |= PKT_ALIAS_REVERSE; 4042165648Spiso break; 4043165648Spiso case TOK_PROXY_ONLY: 4044165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 4045165648Spiso break; 4046165648Spiso /* 4047165648Spiso * All the setup_redir_* functions work directly in the final 4048165648Spiso * buffer, see above for details. 4049165648Spiso */ 4050165648Spiso case TOK_REDIR_ADDR: 4051165648Spiso case TOK_REDIR_PORT: 4052165648Spiso case TOK_REDIR_PROTO: 4053165648Spiso switch (tok) { 4054165648Spiso case TOK_REDIR_ADDR: 4055165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 4056165648Spiso break; 4057165648Spiso case TOK_REDIR_PORT: 4058165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 4059165648Spiso break; 4060165648Spiso case TOK_REDIR_PROTO: 4061165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 4062165648Spiso break; 4063165648Spiso } 4064165648Spiso n->redir_cnt++; 4065165648Spiso off += i; 4066165648Spiso len -= i; 4067165648Spiso break; 4068165648Spiso default: 4069165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 4070165648Spiso } 4071165648Spiso } 4072165648Spiso 4073165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 4074165648Spiso if (i) 4075165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 4076183890Smaxim 4077186297Spiso if (!do_quiet) { 4078186297Spiso /* After every modification, we show the resultant rule. */ 4079186297Spiso int _ac = 3; 4080186297Spiso char *_av[] = {"show", "config", id}; 4081186297Spiso show_nat(_ac, _av); 4082186297Spiso } 4083165648Spiso} 4084165648Spiso 4085165648Spisostatic void 408698943Sluigiconfig_pipe(int ac, char **av) 408798943Sluigi{ 4088117469Sluigi struct dn_pipe p; 408998943Sluigi int i; 409098943Sluigi char *end; 409198943Sluigi void *par = NULL; 409298943Sluigi 4093117469Sluigi memset(&p, 0, sizeof p); 409498943Sluigi 409598943Sluigi av++; ac--; 409698943Sluigi /* Pipe number */ 409798943Sluigi if (ac && isdigit(**av)) { 409898943Sluigi i = atoi(*av); av++; ac--; 409998943Sluigi if (do_pipe == 1) 4100117469Sluigi p.pipe_nr = i; 410198943Sluigi else 4102117469Sluigi p.fs.fs_nr = i; 410398943Sluigi } 410499475Sluigi while (ac > 0) { 410598943Sluigi double d; 410698943Sluigi int tok = match_token(dummynet_params, *av); 410798943Sluigi ac--; av++; 410898943Sluigi 410998943Sluigi switch(tok) { 4110101978Sluigi case TOK_NOERROR: 4111117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4112101978Sluigi break; 4113101978Sluigi 411498943Sluigi case TOK_PLR: 411598943Sluigi NEED1("plr needs argument 0..1\n"); 411698943Sluigi d = strtod(av[0], NULL); 411798943Sluigi if (d > 1) 411898943Sluigi d = 1; 411998943Sluigi else if (d < 0) 412098943Sluigi d = 0; 4121117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 412298943Sluigi ac--; av++; 412398943Sluigi break; 412498943Sluigi 412598943Sluigi case TOK_QUEUE: 412698943Sluigi NEED1("queue needs queue size\n"); 412798943Sluigi end = NULL; 4128117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 412998943Sluigi if (*end == 'K' || *end == 'k') { 4130117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4131117469Sluigi p.fs.qsize *= 1024; 4132140271Sbrooks } else if (*end == 'B' || 4133140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4134117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 413598943Sluigi } 413698943Sluigi ac--; av++; 413798943Sluigi break; 413898943Sluigi 413998943Sluigi case TOK_BUCKETS: 414098943Sluigi NEED1("buckets needs argument\n"); 4141117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 414298943Sluigi ac--; av++; 414398943Sluigi break; 414498943Sluigi 414598943Sluigi case TOK_MASK: 414698943Sluigi NEED1("mask needs mask specifier\n"); 414798943Sluigi /* 414898943Sluigi * per-flow queue, mask is dst_ip, dst_port, 414998943Sluigi * src_ip, src_port, proto measured in bits 415098943Sluigi */ 415198943Sluigi par = NULL; 415298943Sluigi 4153145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 415498943Sluigi end = NULL; 415598943Sluigi 415698943Sluigi while (ac >= 1) { 4157117328Sluigi uint32_t *p32 = NULL; 4158117328Sluigi uint16_t *p16 = NULL; 4159145246Sbrooks uint32_t *p20 = NULL; 4160145246Sbrooks struct in6_addr *pa6 = NULL; 4161145246Sbrooks uint32_t a; 416298943Sluigi 416398943Sluigi tok = match_token(dummynet_params, *av); 416498943Sluigi ac--; av++; 416598943Sluigi switch(tok) { 416698943Sluigi case TOK_ALL: 416798943Sluigi /* 416898943Sluigi * special case, all bits significant 416998943Sluigi */ 4170117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4171117469Sluigi p.fs.flow_mask.src_ip = ~0; 4172117469Sluigi p.fs.flow_mask.dst_port = ~0; 4173117469Sluigi p.fs.flow_mask.src_port = ~0; 4174117469Sluigi p.fs.flow_mask.proto = ~0; 4175145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4176145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4177145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4178117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 417998943Sluigi goto end_mask; 418098943Sluigi 418198943Sluigi case TOK_DSTIP: 4182117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 418398943Sluigi break; 418498943Sluigi 418598943Sluigi case TOK_SRCIP: 4186117469Sluigi p32 = &p.fs.flow_mask.src_ip; 418798943Sluigi break; 418898943Sluigi 4189145246Sbrooks case TOK_DSTIP6: 4190145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4191145246Sbrooks break; 4192145246Sbrooks 4193145246Sbrooks case TOK_SRCIP6: 4194145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4195145246Sbrooks break; 4196145246Sbrooks 4197145246Sbrooks case TOK_FLOWID: 4198145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4199145246Sbrooks break; 4200145246Sbrooks 420198943Sluigi case TOK_DSTPORT: 4202117469Sluigi p16 = &p.fs.flow_mask.dst_port; 420398943Sluigi break; 420498943Sluigi 420598943Sluigi case TOK_SRCPORT: 4206117469Sluigi p16 = &p.fs.flow_mask.src_port; 420798943Sluigi break; 420898943Sluigi 420998943Sluigi case TOK_PROTO: 421098943Sluigi break; 421198943Sluigi 421298943Sluigi default: 421398943Sluigi ac++; av--; /* backtrack */ 421498943Sluigi goto end_mask; 421598943Sluigi } 421698943Sluigi if (ac < 1) 421798943Sluigi errx(EX_USAGE, "mask: value missing"); 421898943Sluigi if (*av[0] == '/') { 421998943Sluigi a = strtoul(av[0]+1, &end, 0); 4220145246Sbrooks if (pa6 == NULL) 4221145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4222106505Smaxim } else 422399909Sluigi a = strtoul(av[0], &end, 0); 422498943Sluigi if (p32 != NULL) 422598943Sluigi *p32 = a; 422698943Sluigi else if (p16 != NULL) { 4227139821Sbrooks if (a > 0xFFFF) 422898943Sluigi errx(EX_DATAERR, 4229144687Sbrooks "port mask must be 16 bit"); 4230117328Sluigi *p16 = (uint16_t)a; 4231145246Sbrooks } else if (p20 != NULL) { 4232145246Sbrooks if (a > 0xfffff) 4233145246Sbrooks errx(EX_DATAERR, 4234145246Sbrooks "flow_id mask must be 20 bit"); 4235145246Sbrooks *p20 = (uint32_t)a; 4236145246Sbrooks } else if (pa6 != NULL) { 4237187477Sluigi if (a > 128) 4238145246Sbrooks errx(EX_DATAERR, 4239145246Sbrooks "in6addr invalid mask len"); 4240145246Sbrooks else 4241145246Sbrooks n2mask(pa6, a); 424298943Sluigi } else { 4243139821Sbrooks if (a > 0xFF) 424498943Sluigi errx(EX_DATAERR, 4245144687Sbrooks "proto mask must be 8 bit"); 4246117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 424798943Sluigi } 424898943Sluigi if (a != 0) 4249117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 425098943Sluigi ac--; av++; 425198943Sluigi } /* end while, config masks */ 425298943Sluigiend_mask: 425398943Sluigi break; 425498943Sluigi 425598943Sluigi case TOK_RED: 425698943Sluigi case TOK_GRED: 425798943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4258117469Sluigi p.fs.flags_fs |= DN_IS_RED; 425998943Sluigi if (tok == TOK_GRED) 4260117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 426198943Sluigi /* 426298943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 426398943Sluigi */ 426498943Sluigi if ((end = strsep(&av[0], "/"))) { 426598943Sluigi double w_q = strtod(end, NULL); 426698943Sluigi if (w_q > 1 || w_q <= 0) 426798943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4268117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 426998943Sluigi } 427098943Sluigi if ((end = strsep(&av[0], "/"))) { 4271117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 427298943Sluigi if (*end == 'K' || *end == 'k') 4273117469Sluigi p.fs.min_th *= 1024; 427498943Sluigi } 427598943Sluigi if ((end = strsep(&av[0], "/"))) { 4276117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 427798943Sluigi if (*end == 'K' || *end == 'k') 4278117469Sluigi p.fs.max_th *= 1024; 427998943Sluigi } 428098943Sluigi if ((end = strsep(&av[0], "/"))) { 428198943Sluigi double max_p = strtod(end, NULL); 428298943Sluigi if (max_p > 1 || max_p <= 0) 428398943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4284117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 428598943Sluigi } 428698943Sluigi ac--; av++; 428798943Sluigi break; 428898943Sluigi 428998943Sluigi case TOK_DROPTAIL: 4290117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 429198943Sluigi break; 4292106505Smaxim 429398943Sluigi case TOK_BW: 429498943Sluigi NEED1("bw needs bandwidth or interface\n"); 429598943Sluigi if (do_pipe != 1) 429698943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 429798943Sluigi /* 429898943Sluigi * set clocking interface or bandwidth value 429998943Sluigi */ 430098943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4301117469Sluigi int l = sizeof(p.if_name)-1; 430298943Sluigi /* interface name */ 4303117469Sluigi strncpy(p.if_name, av[0], l); 4304117469Sluigi p.if_name[l] = '\0'; 4305117469Sluigi p.bandwidth = 0; 430698943Sluigi } else { 4307117469Sluigi p.if_name[0] = '\0'; 4308117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 430998943Sluigi if (*end == 'K' || *end == 'k') { 431098943Sluigi end++; 4311117469Sluigi p.bandwidth *= 1000; 431298943Sluigi } else if (*end == 'M') { 431398943Sluigi end++; 4314117469Sluigi p.bandwidth *= 1000000; 431598943Sluigi } 4316161550Sdwmalone if ((*end == 'B' && 4317161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4318140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4319117469Sluigi p.bandwidth *= 8; 4320117469Sluigi if (p.bandwidth < 0) 432198943Sluigi errx(EX_DATAERR, "bandwidth too large"); 432298943Sluigi } 432398943Sluigi ac--; av++; 432498943Sluigi break; 432598943Sluigi 432698943Sluigi case TOK_DELAY: 432798943Sluigi if (do_pipe != 1) 432898943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 432998943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4330117469Sluigi p.delay = strtoul(av[0], NULL, 0); 433198943Sluigi ac--; av++; 433298943Sluigi break; 433398943Sluigi 433498943Sluigi case TOK_WEIGHT: 433598943Sluigi if (do_pipe == 1) 433698943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 433798943Sluigi NEED1("weight needs argument 0..100\n"); 4338117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 433998943Sluigi ac--; av++; 434098943Sluigi break; 434198943Sluigi 434298943Sluigi case TOK_PIPE: 434398943Sluigi if (do_pipe == 1) 434498943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 434598943Sluigi NEED1("pipe needs pipe_number\n"); 4346117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 434798943Sluigi ac--; av++; 434898943Sluigi break; 434998943Sluigi 435098943Sluigi default: 4351124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 435298943Sluigi } 435398943Sluigi } 435498943Sluigi if (do_pipe == 1) { 4355117469Sluigi if (p.pipe_nr == 0) 435698943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4357117469Sluigi if (p.delay > 10000) 435898943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 435998943Sluigi } else { /* do_pipe == 2, queue */ 4360117469Sluigi if (p.fs.parent_nr == 0) 436198943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4362117469Sluigi if (p.fs.weight >100) 436398943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 436498943Sluigi } 4365117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4366176626Sdwmalone size_t len; 4367176626Sdwmalone long limit; 4368176626Sdwmalone 4369176626Sdwmalone len = sizeof(limit); 4370176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit", 4371176626Sdwmalone &limit, &len, NULL, 0) == -1) 4372176626Sdwmalone limit = 1024*1024; 4373176626Sdwmalone if (p.fs.qsize > limit) 4374176626Sdwmalone errx(EX_DATAERR, "queue size must be < %ldB", limit); 437598943Sluigi } else { 4376176626Sdwmalone size_t len; 4377176626Sdwmalone long limit; 4378176626Sdwmalone 4379176626Sdwmalone len = sizeof(limit); 4380176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit", 4381176626Sdwmalone &limit, &len, NULL, 0) == -1) 4382176626Sdwmalone limit = 100; 4383176626Sdwmalone if (p.fs.qsize > limit) 4384176626Sdwmalone errx(EX_DATAERR, "2 <= queue size <= %ld", limit); 438598943Sluigi } 4386117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 438798943Sluigi size_t len; 438898943Sluigi int lookup_depth, avg_pkt_size; 438998943Sluigi double s, idle, weight, w_q; 4390117469Sluigi struct clockinfo ck; 439198943Sluigi int t; 439298943Sluigi 4393117469Sluigi if (p.fs.min_th >= p.fs.max_th) 439498943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4395117469Sluigi p.fs.min_th, p.fs.max_th); 4396117469Sluigi if (p.fs.max_th == 0) 439798943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 439898943Sluigi 439998943Sluigi len = sizeof(int); 440098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 440198943Sluigi &lookup_depth, &len, NULL, 0) == -1) 440298943Sluigi errx(1, "sysctlbyname(\"%s\")", 440398943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 440498943Sluigi if (lookup_depth == 0) 440598943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 440698943Sluigi " must be greater than zero"); 440798943Sluigi 440898943Sluigi len = sizeof(int); 440998943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 441098943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 441198943Sluigi 441298943Sluigi errx(1, "sysctlbyname(\"%s\")", 441398943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 441498943Sluigi if (avg_pkt_size == 0) 441598943Sluigi errx(EX_DATAERR, 441698943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 441798943Sluigi " be greater than zero"); 441898943Sluigi 441998943Sluigi len = sizeof(struct clockinfo); 4420117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 442198943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 442298943Sluigi 442398943Sluigi /* 442498943Sluigi * Ticks needed for sending a medium-sized packet. 442598943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 442698943Sluigi * do not have bandwidth information, because that is stored 442798943Sluigi * in the parent pipe, and also we have multiple queues 442898943Sluigi * competing for it. So we set s=0, which is not very 442998943Sluigi * correct. But on the other hand, why do we want RED with 443098943Sluigi * WF2Q+ ? 443198943Sluigi */ 4432117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 443398943Sluigi s = 0; 443498943Sluigi else 4435174713Soleg s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth; 443698943Sluigi 443798943Sluigi /* 443898943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 443998943Sluigi * NOTA: (3/w_q) is approx the value x so that 444098943Sluigi * (1-w_q)^x < 10^-3. 444198943Sluigi */ 4442117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 444398943Sluigi idle = s * 3. / w_q; 4444117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4445117469Sluigi if (!p.fs.lookup_step) 4446117469Sluigi p.fs.lookup_step = 1; 444798943Sluigi weight = 1 - w_q; 4448174713Soleg for (t = p.fs.lookup_step; t > 1; --t) 4449174713Soleg weight *= 1 - w_q; 4450117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 445198943Sluigi } 4452117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 445398943Sluigi if (i) 445498943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 445598943Sluigi} 445698943Sluigi 445798943Sluigistatic void 4458169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 445998943Sluigi{ 446098943Sluigi int i, l; 4461169424Smaxim char *ap, *ptr, *optr; 4462169424Smaxim struct ether_addr *mac; 4463169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 446498943Sluigi 4465169424Smaxim if (strcmp(p, "any") == 0) { 4466169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4467169424Smaxim addr[i] = mask[i] = 0; 446898943Sluigi return; 4469169424Smaxim } 447098943Sluigi 4471169424Smaxim optr = ptr = strdup(p); 4472169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4473169424Smaxim l = strlen(ap); 4474169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4475169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4476169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4477169424Smaxim } else 4478169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4479169424Smaxim 4480169424Smaxim if (ptr != NULL) { /* we have mask? */ 4481169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4482169424Smaxim l = strtol(ptr, &ap, 10); 4483169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4484169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4485169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4486169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4487169424Smaxim } else { /* mask */ 4488169424Smaxim l = strlen(ptr); 4489169424Smaxim if (strspn(ptr, macset) != l || 4490169424Smaxim (mac = ether_aton(ptr)) == NULL) 4491169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4492169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 449398943Sluigi } 4494169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4495169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 449698943Sluigi mask[i] = 0xff; 449798943Sluigi } 4498169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 449998943Sluigi addr[i] &= mask[i]; 4500169424Smaxim 4501169424Smaxim free(optr); 450298943Sluigi} 450398943Sluigi 450498943Sluigi/* 450598943Sluigi * helper function, updates the pointer to cmd with the length 450698943Sluigi * of the current command, and also cleans up the first word of 450798943Sluigi * the new command in case it has been clobbered before. 450898943Sluigi */ 450998943Sluigistatic ipfw_insn * 451098943Sluiginext_cmd(ipfw_insn *cmd) 451198943Sluigi{ 451298943Sluigi cmd += F_LEN(cmd); 451398943Sluigi bzero(cmd, sizeof(*cmd)); 451498943Sluigi return cmd; 451598943Sluigi} 451698943Sluigi 451798943Sluigi/* 4518117469Sluigi * Takes arguments and copies them into a comment 4519117469Sluigi */ 4520117469Sluigistatic void 4521117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4522117469Sluigi{ 4523117469Sluigi int i, l; 4524117469Sluigi char *p = (char *)(cmd + 1); 4525117577Sluigi 4526117469Sluigi cmd->opcode = O_NOP; 4527117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4528117469Sluigi 4529117469Sluigi /* Compute length of comment string. */ 4530117469Sluigi for (i = 0, l = 0; i < ac; i++) 4531117469Sluigi l += strlen(av[i]) + 1; 4532117469Sluigi if (l == 0) 4533117469Sluigi return; 4534117469Sluigi if (l > 84) 4535117469Sluigi errx(EX_DATAERR, 4536117469Sluigi "comment too long (max 80 chars)"); 4537117469Sluigi l = 1 + (l+3)/4; 4538117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4539117469Sluigi for (i = 0; i < ac; i++) { 4540117469Sluigi strcpy(p, av[i]); 4541117469Sluigi p += strlen(av[i]); 4542117469Sluigi *p++ = ' '; 4543117469Sluigi } 4544117469Sluigi *(--p) = '\0'; 4545117469Sluigi} 4546117577Sluigi 4547117469Sluigi/* 454898943Sluigi * A function to fill simple commands of size 1. 454998943Sluigi * Existing flags are preserved. 455098943Sluigi */ 455198943Sluigistatic void 4552117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 455398943Sluigi{ 455498943Sluigi cmd->opcode = opcode; 455598943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 455698943Sluigi cmd->arg1 = arg; 455798943Sluigi} 455898943Sluigi 455998943Sluigi/* 456098943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 456198943Sluigi * two microinstructions, and returns the pointer to the last one. 456298943Sluigi */ 456398943Sluigistatic ipfw_insn * 456498943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 456598943Sluigi{ 4566102087Sluigi ipfw_insn_mac *mac; 456798943Sluigi 4568102087Sluigi if (ac < 2) 4569102098Sluigi errx(EX_DATAERR, "MAC dst src"); 457098943Sluigi 457198943Sluigi cmd->opcode = O_MACADDR2; 457298943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 457398943Sluigi 457498943Sluigi mac = (ipfw_insn_mac *)cmd; 4575101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4576169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4577169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4578102087Sluigi return cmd; 4579102087Sluigi} 458098943Sluigi 4581102087Sluigistatic ipfw_insn * 4582102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4583102087Sluigi{ 4584102087Sluigi if (ac < 1) 4585102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4586102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4587102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 458898943Sluigi cmd->opcode = O_MAC_TYPE; 4589102087Sluigi return cmd; 4590102087Sluigi } else 4591102087Sluigi return NULL; 4592102087Sluigi} 459398943Sluigi 4594102087Sluigistatic ipfw_insn * 4595152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4596102087Sluigi{ 4597102087Sluigi struct protoent *pe; 4598152923Sume char *ep; 4599152923Sume int proto; 4600102087Sluigi 4601156315Sume proto = strtol(av, &ep, 10); 4602156315Sume if (*ep != '\0' || proto <= 0) { 4603152923Sume if ((pe = getprotobyname(av)) == NULL) 4604152923Sume return NULL; 4605152923Sume proto = pe->p_proto; 4606152923Sume } 4607145246Sbrooks 4608152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4609152923Sume *protop = proto; 4610152923Sume return cmd; 4611152923Sume} 4612152923Sume 4613152923Sumestatic ipfw_insn * 4614152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4615152923Sume{ 4616152923Sume u_char proto = IPPROTO_IP; 4617152923Sume 4618156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4619146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4620152923Sume else if (strcmp(av, "ip4") == 0) 4621152923Sume /* explicit "just IPv4" rule */ 4622152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4623152923Sume else if (strcmp(av, "ip6") == 0) { 4624152923Sume /* explicit "just IPv6" rule */ 4625152923Sume proto = IPPROTO_IPV6; 4626152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4627152923Sume } else 4628152923Sume return add_proto0(cmd, av, protop); 4629152923Sume 4630152923Sume *protop = proto; 4631152923Sume return cmd; 4632152923Sume} 4633152923Sume 4634152923Sumestatic ipfw_insn * 4635152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4636152923Sume{ 4637152923Sume u_char proto = IPPROTO_IP; 4638152923Sume 4639152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4640152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4641146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4642146894Smlaier /* explicit "just IPv4" rule */ 4643146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4644146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4645146894Smlaier /* explicit "just IPv6" rule */ 4646152923Sume proto = IPPROTO_IPV6; 4647146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4648152923Sume } else 4649152923Sume return add_proto0(cmd, av, protop); 4650145246Sbrooks 4651152923Sume *protop = proto; 465298943Sluigi return cmd; 465398943Sluigi} 465498943Sluigi 4655102087Sluigistatic ipfw_insn * 4656102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4657102087Sluigi{ 4658102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4659102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4660102087Sluigi cmd->opcode = O_IP_SRC_SET; 4661130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4662130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4663102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4664102087Sluigi cmd->opcode = O_IP_SRC_ME; 4665102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4666102087Sluigi cmd->opcode = O_IP_SRC; 4667117328Sluigi else /* addr/mask */ 4668102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4669102087Sluigi return cmd; 4670102087Sluigi} 4671102087Sluigi 4672102087Sluigistatic ipfw_insn * 4673102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4674102087Sluigi{ 4675102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4676102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4677102087Sluigi ; 4678130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4679130281Sru ; 4680102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4681102087Sluigi cmd->opcode = O_IP_DST_ME; 4682102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4683102087Sluigi cmd->opcode = O_IP_DST; 4684117328Sluigi else /* addr/mask */ 4685102087Sluigi cmd->opcode = O_IP_DST_MASK; 4686102087Sluigi return cmd; 4687102087Sluigi} 4688102087Sluigi 4689102087Sluigistatic ipfw_insn * 4690102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4691102087Sluigi{ 4692140271Sbrooks if (_substrcmp(av, "any") == 0) { 4693102087Sluigi return NULL; 4694102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4695102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4696102087Sluigi cmd->opcode = opcode; 4697102087Sluigi return cmd; 4698102087Sluigi } 4699102087Sluigi return NULL; 4700102087Sluigi} 4701102087Sluigi 4702145246Sbrooksstatic ipfw_insn * 4703145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 4704145246Sbrooks{ 4705145246Sbrooks struct in6_addr a; 4706158553Smlaier char *host, *ch; 4707158553Smlaier ipfw_insn *ret = NULL; 4708145246Sbrooks 4709158553Smlaier if ((host = strdup(av)) == NULL) 4710158553Smlaier return NULL; 4711158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4712158553Smlaier *ch = '\0'; 4713158553Smlaier 4714145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4715158553Smlaier inet_pton(AF_INET6, host, &a)) 4716158553Smlaier ret = add_srcip6(cmd, av); 4717145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4718161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4719161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4720158553Smlaier ret = add_srcip(cmd, av); 4721161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4722158553Smlaier ret = cmd; 4723145246Sbrooks 4724158553Smlaier free(host); 4725158553Smlaier return ret; 4726145246Sbrooks} 4727145246Sbrooks 4728145246Sbrooksstatic ipfw_insn * 4729145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4730145246Sbrooks{ 4731145246Sbrooks struct in6_addr a; 4732158553Smlaier char *host, *ch; 4733158553Smlaier ipfw_insn *ret = NULL; 4734145246Sbrooks 4735158553Smlaier if ((host = strdup(av)) == NULL) 4736158553Smlaier return NULL; 4737158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4738158553Smlaier *ch = '\0'; 4739158553Smlaier 4740145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4741158553Smlaier inet_pton(AF_INET6, host, &a)) 4742158553Smlaier ret = add_dstip6(cmd, av); 4743145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4744161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4745161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4746158553Smlaier ret = add_dstip(cmd, av); 4747161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4748158553Smlaier ret = cmd; 4749145246Sbrooks 4750158553Smlaier free(host); 4751158553Smlaier return ret; 4752145246Sbrooks} 4753145246Sbrooks 475498943Sluigi/* 475598943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 475698943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 475798943Sluigi * into the actual rule. 475898943Sluigi * 4759136071Sgreen * The syntax for a rule starts with the action, followed by 4760136071Sgreen * optional action parameters, and the various match patterns. 4761108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 476298943Sluigi * (generated if the rule includes a keep-state option), then the 4763136071Sgreen * various match patterns, log/altq actions, and the actual action. 4764106505Smaxim * 476598943Sluigi */ 476698943Sluigistatic void 476798943Sluigiadd(int ac, char *av[]) 476898943Sluigi{ 476998943Sluigi /* 477098943Sluigi * rules are added into the 'rulebuf' and then copied in 477198943Sluigi * the correct order into the actual rule. 477298943Sluigi * Some things that need to go out of order (prob, action etc.) 477398943Sluigi * go into actbuf[]. 477498943Sluigi */ 4775117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 477698943Sluigi 4777117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4778102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 477998943Sluigi 478098943Sluigi struct ip_fw *rule; 478198943Sluigi 478298943Sluigi /* 478398943Sluigi * various flags used to record that we entered some fields. 478498943Sluigi */ 4785101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4786158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4787134475Smaxim size_t len; 478898943Sluigi 478998943Sluigi int i; 479098943Sluigi 479198943Sluigi int open_par = 0; /* open parenthesis ( */ 479298943Sluigi 479398943Sluigi /* proto is here because it is used to fetch ports */ 479498943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 479598943Sluigi 4796107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4797107289Sluigi 479898943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 479998943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 480098943Sluigi bzero(rulebuf, sizeof(rulebuf)); 480198943Sluigi 480298943Sluigi rule = (struct ip_fw *)rulebuf; 480398943Sluigi cmd = (ipfw_insn *)cmdbuf; 480498943Sluigi action = (ipfw_insn *)actbuf; 480598943Sluigi 480698943Sluigi av++; ac--; 480798943Sluigi 480898943Sluigi /* [rule N] -- Rule number optional */ 480998943Sluigi if (ac && isdigit(**av)) { 481098943Sluigi rule->rulenum = atoi(*av); 481198943Sluigi av++; 481298943Sluigi ac--; 481398943Sluigi } 481498943Sluigi 4815117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4816140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4817101628Sluigi int set = strtoul(av[1], NULL, 10); 4818117655Sluigi if (set < 0 || set > RESVD_SET) 4819101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4820101628Sluigi rule->set = set; 4821101628Sluigi av += 2; ac -= 2; 4822101628Sluigi } 4823101628Sluigi 482498943Sluigi /* [prob D] -- match probability, optional */ 4825140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4826107289Sluigi match_prob = strtod(av[1], NULL); 482798943Sluigi 4828107289Sluigi if (match_prob <= 0 || match_prob > 1) 482998943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 483098943Sluigi av += 2; ac -= 2; 483198943Sluigi } 483298943Sluigi 483398943Sluigi /* action -- mandatory */ 483498943Sluigi NEED1("missing action"); 483598943Sluigi i = match_token(rule_actions, *av); 483698943Sluigi ac--; av++; 483798943Sluigi action->len = 1; /* default */ 483898943Sluigi switch(i) { 483998943Sluigi case TOK_CHECKSTATE: 4840101116Sluigi have_state = action; 484198943Sluigi action->opcode = O_CHECK_STATE; 484298943Sluigi break; 484398943Sluigi 484498943Sluigi case TOK_ACCEPT: 484598943Sluigi action->opcode = O_ACCEPT; 484698943Sluigi break; 484798943Sluigi 484898943Sluigi case TOK_DENY: 484998943Sluigi action->opcode = O_DENY; 485099475Sluigi action->arg1 = 0; 485198943Sluigi break; 485298943Sluigi 485399475Sluigi case TOK_REJECT: 485499475Sluigi action->opcode = O_REJECT; 485599475Sluigi action->arg1 = ICMP_UNREACH_HOST; 485699475Sluigi break; 485799475Sluigi 485899475Sluigi case TOK_RESET: 485999475Sluigi action->opcode = O_REJECT; 486099475Sluigi action->arg1 = ICMP_REJECT_RST; 486199475Sluigi break; 486299475Sluigi 4863149020Sbz case TOK_RESET6: 4864149020Sbz action->opcode = O_UNREACH6; 4865149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4866149020Sbz break; 4867149020Sbz 486899475Sluigi case TOK_UNREACH: 486999475Sluigi action->opcode = O_REJECT; 487099475Sluigi NEED1("missing reject code"); 487199475Sluigi fill_reject_code(&action->arg1, *av); 487299475Sluigi ac--; av++; 487399475Sluigi break; 487499475Sluigi 4875149020Sbz case TOK_UNREACH6: 4876149020Sbz action->opcode = O_UNREACH6; 4877149020Sbz NEED1("missing unreach code"); 4878149020Sbz fill_unreach6_code(&action->arg1, *av); 4879149020Sbz ac--; av++; 4880149020Sbz break; 4881149020Sbz 488298943Sluigi case TOK_COUNT: 488398943Sluigi action->opcode = O_COUNT; 488498943Sluigi break; 488598943Sluigi 4886176517Spiso case TOK_NAT: 4887176517Spiso action->opcode = O_NAT; 4888176517Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4889176517Spiso goto chkarg; 4890178888Sjulian 489198943Sluigi case TOK_QUEUE: 4892153374Sglebius action->opcode = O_QUEUE; 4893153374Sglebius goto chkarg; 489498943Sluigi case TOK_PIPE: 4895153374Sglebius action->opcode = O_PIPE; 4896153374Sglebius goto chkarg; 489798943Sluigi case TOK_SKIPTO: 4898153374Sglebius action->opcode = O_SKIPTO; 4899153374Sglebius goto chkarg; 4900153374Sglebius case TOK_NETGRAPH: 4901153374Sglebius action->opcode = O_NETGRAPH; 4902153374Sglebius goto chkarg; 4903153374Sglebius case TOK_NGTEE: 4904153374Sglebius action->opcode = O_NGTEE; 4905153374Sglebius goto chkarg; 490698943Sluigi case TOK_DIVERT: 4907153374Sglebius action->opcode = O_DIVERT; 4908153374Sglebius goto chkarg; 490998943Sluigi case TOK_TEE: 4910153374Sglebius action->opcode = O_TEE; 4911153374Sglebiuschkarg: 4912153374Sglebius if (!ac) 4913153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4914153374Sglebius if (isdigit(**av)) { 4915153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4916153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4917153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4918153374Sglebius *(av - 1)); 4919153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 4920153374Sglebius action->arg1 = IP_FW_TABLEARG; 4921153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 492298943Sluigi struct servent *s; 492398943Sluigi setservent(1); 492498943Sluigi s = getservbyname(av[0], "divert"); 492598943Sluigi if (s != NULL) 492698943Sluigi action->arg1 = ntohs(s->s_port); 492798943Sluigi else 492898943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4929153374Sglebius } else 4930153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 493198943Sluigi ac--; av++; 493298943Sluigi break; 493398943Sluigi 493498943Sluigi case TOK_FORWARD: { 493598943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 493698943Sluigi char *s, *end; 493798943Sluigi 493898943Sluigi NEED1("missing forward address[:port]"); 493998943Sluigi 494098943Sluigi action->opcode = O_FORWARD_IP; 494198943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 494298943Sluigi 494398943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 494498943Sluigi p->sa.sin_family = AF_INET; 494598943Sluigi p->sa.sin_port = 0; 494698943Sluigi /* 494798943Sluigi * locate the address-port separator (':' or ',') 494898943Sluigi */ 494998943Sluigi s = strchr(*av, ':'); 495098943Sluigi if (s == NULL) 495198943Sluigi s = strchr(*av, ','); 495298943Sluigi if (s != NULL) { 495398943Sluigi *(s++) = '\0'; 495498943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 495598943Sluigi if (s == end) 495698943Sluigi errx(EX_DATAERR, 495798943Sluigi "illegal forwarding port ``%s''", s); 4958103241Sluigi p->sa.sin_port = (u_short)i; 495998943Sluigi } 4960161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4961161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4962161456Sjulian else 4963161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 496498943Sluigi ac--; av++; 496598943Sluigi break; 4966161424Sjulian } 4967117469Sluigi case TOK_COMMENT: 4968117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4969117469Sluigi action->opcode = O_COUNT; 4970117469Sluigi ac++; av--; /* go back... */ 4971117469Sluigi break; 4972178888Sjulian 4973178888Sjulian case TOK_SETFIB: 4974178888Sjulian { 4975178888Sjulian int numfibs; 4976178916Sjulian size_t intsize = sizeof(int); 4977178888Sjulian 4978178888Sjulian action->opcode = O_SETFIB; 4979178888Sjulian NEED1("missing fib number"); 4980178888Sjulian action->arg1 = strtoul(*av, NULL, 10); 4981178916Sjulian if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 4982178888Sjulian errx(EX_DATAERR, "fibs not suported.\n"); 4983178888Sjulian if (action->arg1 >= numfibs) /* Temporary */ 4984178888Sjulian errx(EX_DATAERR, "fib too large.\n"); 4985178888Sjulian ac--; av++; 4986178888Sjulian break; 4987178888Sjulian } 4988165648Spiso 498998943Sluigi default: 4990102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 499198943Sluigi } 499298943Sluigi action = next_cmd(action); 499398943Sluigi 499498943Sluigi /* 4995136071Sgreen * [altq queuename] -- altq tag, optional 499698943Sluigi * [log [logamount N]] -- log, optional 499798943Sluigi * 4998136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 499998943Sluigi * skipped in the copy section to the end of the buffer. 500098943Sluigi */ 5001136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 5002136071Sgreen ac--; av++; 5003136071Sgreen switch (i) { 5004136071Sgreen case TOK_LOG: 5005136071Sgreen { 5006136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 5007136071Sgreen int l; 500898943Sluigi 5009136071Sgreen if (have_log) 5010136071Sgreen errx(EX_DATAERR, 5011136071Sgreen "log cannot be specified more than once"); 5012136071Sgreen have_log = (ipfw_insn *)c; 5013136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 5014136071Sgreen cmd->opcode = O_LOG; 5015140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 5016136071Sgreen ac--; av++; 5017136071Sgreen NEED1("logamount requires argument"); 5018136071Sgreen l = atoi(*av); 5019136071Sgreen if (l < 0) 5020136071Sgreen errx(EX_DATAERR, 5021136071Sgreen "logamount must be positive"); 5022136071Sgreen c->max_log = l; 5023136071Sgreen ac--; av++; 5024136071Sgreen } else { 5025136071Sgreen len = sizeof(c->max_log); 5026136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 5027136071Sgreen &c->max_log, &len, NULL, 0) == -1) 5028136071Sgreen errx(1, "sysctlbyname(\"%s\")", 5029136071Sgreen "net.inet.ip.fw.verbose_limit"); 5030136071Sgreen } 5031136071Sgreen } 5032136071Sgreen break; 5033136071Sgreen 5034136071Sgreen case TOK_ALTQ: 5035136071Sgreen { 5036136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 5037136071Sgreen 5038136071Sgreen NEED1("missing altq queue name"); 5039136071Sgreen if (have_altq) 5040136071Sgreen errx(EX_DATAERR, 5041136071Sgreen "altq cannot be specified more than once"); 5042136071Sgreen have_altq = (ipfw_insn *)a; 5043136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 5044136071Sgreen cmd->opcode = O_ALTQ; 5045136071Sgreen fill_altq_qid(&a->qid, *av); 504698943Sluigi ac--; av++; 5047136071Sgreen } 5048136071Sgreen break; 5049136071Sgreen 5050158879Soleg case TOK_TAG: 5051159636Soleg case TOK_UNTAG: { 5052159636Soleg uint16_t tag; 5053159636Soleg 5054158879Soleg if (have_tag) 5055159636Soleg errx(EX_USAGE, "tag and untag cannot be " 5056159636Soleg "specified more than once"); 5057182823Srik GET_UINT_ARG(tag, 1, IPFW_DEFAULT_RULE - 1, i, 5058182823Srik rule_action_params); 5059158879Soleg have_tag = cmd; 5060159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 5061158879Soleg ac--; av++; 5062158879Soleg break; 5063159636Soleg } 5064158879Soleg 5065136071Sgreen default: 5066136071Sgreen abort(); 506798943Sluigi } 506898943Sluigi cmd = next_cmd(cmd); 506998943Sluigi } 507098943Sluigi 5071101116Sluigi if (have_state) /* must be a check-state, we are done */ 507298943Sluigi goto done; 507398943Sluigi 507498943Sluigi#define OR_START(target) \ 507598943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 507698943Sluigi if (open_par) \ 507798943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 5078101641Sluigi prev = NULL; \ 507998943Sluigi open_par = 1; \ 508098943Sluigi if ( (av[0])[1] == '\0') { \ 508198943Sluigi ac--; av++; \ 508298943Sluigi } else \ 508398943Sluigi (*av)++; \ 508498943Sluigi } \ 508598943Sluigi target: \ 508698943Sluigi 508798943Sluigi 508898943Sluigi#define CLOSE_PAR \ 508998943Sluigi if (open_par) { \ 509098943Sluigi if (ac && ( \ 5091140271Sbrooks strcmp(*av, ")") == 0 || \ 5092140271Sbrooks strcmp(*av, "}") == 0)) { \ 5093101641Sluigi prev = NULL; \ 509498943Sluigi open_par = 0; \ 509598943Sluigi ac--; av++; \ 509698943Sluigi } else \ 509798943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 509898943Sluigi } 5099106505Smaxim 510098943Sluigi#define NOT_BLOCK \ 5101140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 510298943Sluigi if (cmd->len & F_NOT) \ 510398943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 510498943Sluigi cmd->len |= F_NOT; \ 510598943Sluigi ac--; av++; \ 510698943Sluigi } 510798943Sluigi 510898943Sluigi#define OR_BLOCK(target) \ 5109140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 511098943Sluigi if (prev == NULL || open_par == 0) \ 511198943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 511298943Sluigi prev->len |= F_OR; \ 511398943Sluigi ac--; av++; \ 511498943Sluigi goto target; \ 511598943Sluigi } \ 511698943Sluigi CLOSE_PAR; 511798943Sluigi 5118102087Sluigi first_cmd = cmd; 5119102098Sluigi 5120102098Sluigi#if 0 512198943Sluigi /* 5122102087Sluigi * MAC addresses, optional. 5123102087Sluigi * If we have this, we skip the part "proto from src to dst" 5124102087Sluigi * and jump straight to the option parsing. 5125102087Sluigi */ 5126102087Sluigi NOT_BLOCK; 5127102087Sluigi NEED1("missing protocol"); 5128140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5129140271Sbrooks _substrcmp(*av, "mac") == 0) { 5130102087Sluigi ac--; av++; /* the "MAC" keyword */ 5131102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5132102087Sluigi cmd = next_cmd(cmd); 5133102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5134102087Sluigi NOT_BLOCK; 5135102087Sluigi NEED1("missing mac type"); 5136102087Sluigi if (add_mactype(cmd, ac, av[0])) 5137102087Sluigi cmd = next_cmd(cmd); 5138102087Sluigi ac--; av++; /* any or mac-type */ 5139102087Sluigi goto read_options; 5140102087Sluigi } 5141102098Sluigi#endif 5142102087Sluigi 5143102087Sluigi /* 514498943Sluigi * protocol, mandatory 514598943Sluigi */ 514698943Sluigi OR_START(get_proto); 514798943Sluigi NOT_BLOCK; 514898943Sluigi NEED1("missing protocol"); 5149152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5150102087Sluigi av++; ac--; 5151147105Smlaier if (F_LEN(cmd) != 0) { 5152102087Sluigi prev = cmd; 5153102087Sluigi cmd = next_cmd(cmd); 5154102087Sluigi } 5155102098Sluigi } else if (first_cmd != cmd) { 5156116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5157102098Sluigi } else 5158102098Sluigi goto read_options; 515998943Sluigi OR_BLOCK(get_proto); 516098943Sluigi 516198943Sluigi /* 5162102087Sluigi * "from", mandatory 516398943Sluigi */ 5164140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 516598943Sluigi errx(EX_USAGE, "missing ``from''"); 516698943Sluigi ac--; av++; 516798943Sluigi 516898943Sluigi /* 516998943Sluigi * source IP, mandatory 517098943Sluigi */ 517198943Sluigi OR_START(source_ip); 517298943Sluigi NOT_BLOCK; /* optional "not" */ 517398943Sluigi NEED1("missing source address"); 5174145246Sbrooks if (add_src(cmd, *av, proto)) { 5175102087Sluigi ac--; av++; 5176102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5177102087Sluigi prev = cmd; 5178102087Sluigi cmd = next_cmd(cmd); 5179102087Sluigi } 5180145246Sbrooks } else 5181145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 518298943Sluigi OR_BLOCK(source_ip); 518398943Sluigi 518498943Sluigi /* 518598943Sluigi * source ports, optional 518698943Sluigi */ 518798943Sluigi NOT_BLOCK; /* optional "not" */ 5188101641Sluigi if (ac) { 5189140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5190102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5191102087Sluigi ac--; av++; 5192102087Sluigi if (F_LEN(cmd) != 0) 5193102087Sluigi cmd = next_cmd(cmd); 5194101641Sluigi } 519598943Sluigi } 519698943Sluigi 519798943Sluigi /* 5198102087Sluigi * "to", mandatory 519998943Sluigi */ 5200140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 520198943Sluigi errx(EX_USAGE, "missing ``to''"); 520298943Sluigi av++; ac--; 520398943Sluigi 520498943Sluigi /* 520598943Sluigi * destination, mandatory 520698943Sluigi */ 520798943Sluigi OR_START(dest_ip); 520898943Sluigi NOT_BLOCK; /* optional "not" */ 520998943Sluigi NEED1("missing dst address"); 5210145246Sbrooks if (add_dst(cmd, *av, proto)) { 5211102087Sluigi ac--; av++; 5212102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5213102087Sluigi prev = cmd; 5214102087Sluigi cmd = next_cmd(cmd); 5215102087Sluigi } 5216145246Sbrooks } else 5217145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 521898943Sluigi OR_BLOCK(dest_ip); 521998943Sluigi 522098943Sluigi /* 522198943Sluigi * dest. ports, optional 522298943Sluigi */ 522398943Sluigi NOT_BLOCK; /* optional "not" */ 5224101641Sluigi if (ac) { 5225140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5226102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5227102087Sluigi ac--; av++; 5228102087Sluigi if (F_LEN(cmd) != 0) 5229102087Sluigi cmd = next_cmd(cmd); 5230101641Sluigi } 523198943Sluigi } 523298943Sluigi 523398943Sluigiread_options: 5234102087Sluigi if (ac && first_cmd == cmd) { 5235102087Sluigi /* 5236102087Sluigi * nothing specified so far, store in the rule to ease 5237102087Sluigi * printout later. 5238102087Sluigi */ 5239102087Sluigi rule->_pad = 1; 5240102087Sluigi } 524198943Sluigi prev = NULL; 524298943Sluigi while (ac) { 5243101641Sluigi char *s; 5244101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 524598943Sluigi 5246101641Sluigi s = *av; 5247101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5248101641Sluigi 524998943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 525098943Sluigi if (cmd->len & F_NOT) 525198943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 525298943Sluigi cmd->len = F_NOT; 525398943Sluigi s++; 525498943Sluigi } 525598943Sluigi i = match_token(rule_options, s); 525698943Sluigi ac--; av++; 525798943Sluigi switch(i) { 525898943Sluigi case TOK_NOT: 525998943Sluigi if (cmd->len & F_NOT) 526098943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 526198943Sluigi cmd->len = F_NOT; 526298943Sluigi break; 526398943Sluigi 526498943Sluigi case TOK_OR: 5265101641Sluigi if (open_par == 0 || prev == NULL) 526698943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 526798943Sluigi prev->len |= F_OR; 526898943Sluigi break; 5269101641Sluigi 5270101641Sluigi case TOK_STARTBRACE: 5271101641Sluigi if (open_par) 5272101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5273101641Sluigi open_par = 1; 5274101641Sluigi break; 5275101641Sluigi 5276101641Sluigi case TOK_ENDBRACE: 5277101641Sluigi if (!open_par) 5278101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5279101641Sluigi open_par = 0; 5280102087Sluigi prev = NULL; 5281101641Sluigi break; 5282101641Sluigi 528398943Sluigi case TOK_IN: 528498943Sluigi fill_cmd(cmd, O_IN, 0, 0); 528598943Sluigi break; 528698943Sluigi 528798943Sluigi case TOK_OUT: 528898943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 528998943Sluigi fill_cmd(cmd, O_IN, 0, 0); 529098943Sluigi break; 529198943Sluigi 5292136073Sgreen case TOK_DIVERTED: 5293136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5294136073Sgreen break; 5295136073Sgreen 5296136073Sgreen case TOK_DIVERTEDLOOPBACK: 5297136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5298136073Sgreen break; 5299136073Sgreen 5300136073Sgreen case TOK_DIVERTEDOUTPUT: 5301136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5302136073Sgreen break; 5303136073Sgreen 530498943Sluigi case TOK_FRAG: 530598943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 530698943Sluigi break; 530798943Sluigi 530898943Sluigi case TOK_LAYER2: 530998943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 531098943Sluigi break; 531198943Sluigi 531298943Sluigi case TOK_XMIT: 531398943Sluigi case TOK_RECV: 531498943Sluigi case TOK_VIA: 531598943Sluigi NEED1("recv, xmit, via require interface name" 531698943Sluigi " or address"); 531798943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 531898943Sluigi ac--; av++; 531998943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 532098943Sluigi break; 532198943Sluigi if (i == TOK_XMIT) 532298943Sluigi cmd->opcode = O_XMIT; 532398943Sluigi else if (i == TOK_RECV) 532498943Sluigi cmd->opcode = O_RECV; 532598943Sluigi else if (i == TOK_VIA) 532698943Sluigi cmd->opcode = O_VIA; 532798943Sluigi break; 532898943Sluigi 532999475Sluigi case TOK_ICMPTYPES: 533099475Sluigi NEED1("icmptypes requires list of types"); 533199475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 533299475Sluigi av++; ac--; 533399475Sluigi break; 5334145246Sbrooks 5335145246Sbrooks case TOK_ICMP6TYPES: 5336145246Sbrooks NEED1("icmptypes requires list of types"); 5337145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5338145246Sbrooks av++; ac--; 5339145246Sbrooks break; 534099475Sluigi 534198943Sluigi case TOK_IPTTL: 534298943Sluigi NEED1("ipttl requires TTL"); 5343116690Sluigi if (strpbrk(*av, "-,")) { 5344116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5345116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5346116690Sluigi } else 5347116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 534898943Sluigi ac--; av++; 534998943Sluigi break; 535098943Sluigi 535198943Sluigi case TOK_IPID: 5352116690Sluigi NEED1("ipid requires id"); 5353116690Sluigi if (strpbrk(*av, "-,")) { 5354116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5355116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5356116690Sluigi } else 5357116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 535898943Sluigi ac--; av++; 535998943Sluigi break; 536098943Sluigi 536198943Sluigi case TOK_IPLEN: 536298943Sluigi NEED1("iplen requires length"); 5363116690Sluigi if (strpbrk(*av, "-,")) { 5364116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5365116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5366116690Sluigi } else 5367116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 536898943Sluigi ac--; av++; 536998943Sluigi break; 537098943Sluigi 537198943Sluigi case TOK_IPVER: 537298943Sluigi NEED1("ipver requires version"); 537398943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 537498943Sluigi ac--; av++; 537598943Sluigi break; 537698943Sluigi 537799475Sluigi case TOK_IPPRECEDENCE: 537899475Sluigi NEED1("ipprecedence requires value"); 537999475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 538099475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 538199475Sluigi ac--; av++; 538299475Sluigi break; 538399475Sluigi 538498943Sluigi case TOK_IPOPTS: 538598943Sluigi NEED1("missing argument for ipoptions"); 5386101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 538798943Sluigi ac--; av++; 538898943Sluigi break; 538998943Sluigi 539099475Sluigi case TOK_IPTOS: 539199475Sluigi NEED1("missing argument for iptos"); 5392101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 539399475Sluigi ac--; av++; 539499475Sluigi break; 539599475Sluigi 539698943Sluigi case TOK_UID: 539798943Sluigi NEED1("uid requires argument"); 539898943Sluigi { 539998943Sluigi char *end; 540098943Sluigi uid_t uid; 540198943Sluigi struct passwd *pwd; 540298943Sluigi 540398943Sluigi cmd->opcode = O_UID; 540498943Sluigi uid = strtoul(*av, &end, 0); 540598943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 540698943Sluigi if (pwd == NULL) 540798943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5408106504Smaxim cmd32->d[0] = pwd->pw_uid; 5409135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 541098943Sluigi ac--; av++; 541198943Sluigi } 541298943Sluigi break; 541398943Sluigi 541498943Sluigi case TOK_GID: 541598943Sluigi NEED1("gid requires argument"); 541698943Sluigi { 541798943Sluigi char *end; 541898943Sluigi gid_t gid; 541998943Sluigi struct group *grp; 542098943Sluigi 542198943Sluigi cmd->opcode = O_GID; 542298943Sluigi gid = strtoul(*av, &end, 0); 542398943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 542498943Sluigi if (grp == NULL) 542598943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5426106504Smaxim cmd32->d[0] = grp->gr_gid; 5427135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 542898943Sluigi ac--; av++; 542998943Sluigi } 543098943Sluigi break; 543198943Sluigi 5432133600Scsjp case TOK_JAIL: 5433133600Scsjp NEED1("jail requires argument"); 5434133600Scsjp { 5435133600Scsjp char *end; 5436133600Scsjp int jid; 5437133600Scsjp 5438133600Scsjp cmd->opcode = O_JAIL; 5439133600Scsjp jid = (int)strtol(*av, &end, 0); 5440133600Scsjp if (jid < 0 || *end != '\0') 5441133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5442135554Scsjp cmd32->d[0] = (uint32_t)jid; 5443135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5444133600Scsjp ac--; av++; 5445133600Scsjp } 5446133600Scsjp break; 5447133600Scsjp 544898943Sluigi case TOK_ESTAB: 544998943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 545098943Sluigi break; 545198943Sluigi 545298943Sluigi case TOK_SETUP: 545398943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 545498943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 545598943Sluigi break; 545698943Sluigi 5457136075Sgreen case TOK_TCPDATALEN: 5458136075Sgreen NEED1("tcpdatalen requires length"); 5459136075Sgreen if (strpbrk(*av, "-,")) { 5460136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5461136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5462136075Sgreen } else 5463136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5464136075Sgreen strtoul(*av, NULL, 0)); 5465136075Sgreen ac--; av++; 5466136075Sgreen break; 5467136075Sgreen 546898943Sluigi case TOK_TCPOPTS: 546998943Sluigi NEED1("missing argument for tcpoptions"); 547098943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 547198943Sluigi ac--; av++; 547298943Sluigi break; 547398943Sluigi 547498943Sluigi case TOK_TCPSEQ: 547598943Sluigi case TOK_TCPACK: 547698943Sluigi NEED1("tcpseq/tcpack requires argument"); 547798943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 547898943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 547998943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 548098943Sluigi ac--; av++; 548198943Sluigi break; 548298943Sluigi 548398943Sluigi case TOK_TCPWIN: 548498943Sluigi NEED1("tcpwin requires length"); 548598943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 548698943Sluigi htons(strtoul(*av, NULL, 0))); 548798943Sluigi ac--; av++; 548898943Sluigi break; 548998943Sluigi 549098943Sluigi case TOK_TCPFLAGS: 549198943Sluigi NEED1("missing argument for tcpflags"); 549298943Sluigi cmd->opcode = O_TCPFLAGS; 549398943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 549498943Sluigi ac--; av++; 549598943Sluigi break; 549698943Sluigi 549798943Sluigi case TOK_KEEPSTATE: 5498101641Sluigi if (open_par) 5499101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5500101641Sluigi "of an or block"); 550199909Sluigi if (have_state) 5502101116Sluigi errx(EX_USAGE, "only one of keep-state " 550399909Sluigi "and limit is allowed"); 5504101116Sluigi have_state = cmd; 550598943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 550698943Sluigi break; 550798943Sluigi 5508159636Soleg case TOK_LIMIT: { 5509159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5510159636Soleg int val; 5511159636Soleg 5512101641Sluigi if (open_par) 5513159636Soleg errx(EX_USAGE, 5514159636Soleg "limit cannot be part of an or block"); 551599909Sluigi if (have_state) 5516168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5517159636Soleg "limit is allowed"); 5518101116Sluigi have_state = cmd; 551998943Sluigi 552098943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 552198943Sluigi cmd->opcode = O_LIMIT; 5522159636Soleg c->limit_mask = c->conn_limit = 0; 552398943Sluigi 5524159636Soleg while (ac > 0) { 5525159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 552698943Sluigi break; 552798943Sluigi c->limit_mask |= val; 552898943Sluigi ac--; av++; 552998943Sluigi } 5530159636Soleg 553198943Sluigi if (c->limit_mask == 0) 5532159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5533159636Soleg 5534182823Srik GET_UINT_ARG(c->conn_limit, 1, IPFW_DEFAULT_RULE - 1, 5535182823Srik TOK_LIMIT, rule_options); 5536159636Soleg 553798943Sluigi ac--; av++; 553898943Sluigi break; 5539159636Soleg } 554098943Sluigi 5541102087Sluigi case TOK_PROTO: 5542102087Sluigi NEED1("missing protocol"); 5543145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5544102087Sluigi ac--; av++; 5545102098Sluigi } else 5546116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5547116438Smaxim *av); 5548102087Sluigi break; 5549106505Smaxim 5550102087Sluigi case TOK_SRCIP: 5551102087Sluigi NEED1("missing source IP"); 5552102087Sluigi if (add_srcip(cmd, *av)) { 5553102087Sluigi ac--; av++; 5554102087Sluigi } 5555102087Sluigi break; 5556102087Sluigi 5557102087Sluigi case TOK_DSTIP: 5558102087Sluigi NEED1("missing destination IP"); 5559102087Sluigi if (add_dstip(cmd, *av)) { 5560102087Sluigi ac--; av++; 5561102087Sluigi } 5562102087Sluigi break; 5563102087Sluigi 5564145246Sbrooks case TOK_SRCIP6: 5565145246Sbrooks NEED1("missing source IP6"); 5566145246Sbrooks if (add_srcip6(cmd, *av)) { 5567145246Sbrooks ac--; av++; 5568145246Sbrooks } 5569145246Sbrooks break; 5570145246Sbrooks 5571145246Sbrooks case TOK_DSTIP6: 5572145246Sbrooks NEED1("missing destination IP6"); 5573145246Sbrooks if (add_dstip6(cmd, *av)) { 5574145246Sbrooks ac--; av++; 5575145246Sbrooks } 5576145246Sbrooks break; 5577145246Sbrooks 5578102087Sluigi case TOK_SRCPORT: 5579102087Sluigi NEED1("missing source port"); 5580140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5581102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5582102087Sluigi ac--; av++; 5583102087Sluigi } else 5584102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5585102087Sluigi break; 5586102087Sluigi 5587102087Sluigi case TOK_DSTPORT: 5588102087Sluigi NEED1("missing destination port"); 5589140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5590102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5591102087Sluigi ac--; av++; 5592102087Sluigi } else 5593102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5594102087Sluigi *av); 5595102087Sluigi break; 5596102087Sluigi 5597102087Sluigi case TOK_MAC: 5598102087Sluigi if (add_mac(cmd, ac, av)) { 5599102087Sluigi ac -= 2; av += 2; 5600102087Sluigi } 5601102087Sluigi break; 5602102087Sluigi 5603102087Sluigi case TOK_MACTYPE: 5604102087Sluigi NEED1("missing mac type"); 5605102087Sluigi if (!add_mactype(cmd, ac, *av)) 5606116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5607102087Sluigi ac--; av++; 5608102087Sluigi break; 5609102087Sluigi 5610112250Scjc case TOK_VERREVPATH: 5611112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5612112250Scjc break; 5613116919Sluigi 5614128575Sandre case TOK_VERSRCREACH: 5615128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5616128575Sandre break; 5617128575Sandre 5618133387Sandre case TOK_ANTISPOOF: 5619133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5620133387Sandre break; 5621133387Sandre 5622117241Sluigi case TOK_IPSEC: 5623117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5624117241Sluigi break; 5625117241Sluigi 5626145246Sbrooks case TOK_IPV6: 5627145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5628145246Sbrooks break; 5629145246Sbrooks 5630146894Smlaier case TOK_IPV4: 5631146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5632146894Smlaier break; 5633146894Smlaier 5634145246Sbrooks case TOK_EXT6HDR: 5635145246Sbrooks fill_ext6hdr( cmd, *av ); 5636145246Sbrooks ac--; av++; 5637145246Sbrooks break; 5638145246Sbrooks 5639145246Sbrooks case TOK_FLOWID: 5640145246Sbrooks if (proto != IPPROTO_IPV6 ) 5641145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5642145246Sbrooks "only for ipv6 protocol\n"); 5643145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5644145246Sbrooks ac--; av++; 5645145246Sbrooks break; 5646145246Sbrooks 5647117469Sluigi case TOK_COMMENT: 5648117469Sluigi fill_comment(cmd, ac, av); 5649117469Sluigi av += ac; 5650117469Sluigi ac = 0; 5651117469Sluigi break; 5652117469Sluigi 5653158879Soleg case TOK_TAGGED: 5654159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5655158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5656159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5657159636Soleg " list: %s", *av); 5658158879Soleg } 5659159636Soleg else { 5660159636Soleg uint16_t tag; 5661159636Soleg 5662182823Srik GET_UINT_ARG(tag, 1, IPFW_DEFAULT_RULE - 1, 5663182823Srik TOK_TAGGED, rule_options); 5664159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5665159636Soleg } 5666158879Soleg ac--; av++; 5667158879Soleg break; 5668158879Soleg 5669178888Sjulian case TOK_FIB: 5670178888Sjulian NEED1("fib requires fib number"); 5671178888Sjulian fill_cmd(cmd, O_FIB, 0, strtoul(*av, NULL, 0)); 5672178888Sjulian ac--; av++; 5673178888Sjulian break; 5674178888Sjulian 567598943Sluigi default: 567698943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 567798943Sluigi } 567898943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 567998943Sluigi prev = cmd; 568098943Sluigi cmd = next_cmd(cmd); 568198943Sluigi } 568298943Sluigi } 568398943Sluigi 568498943Sluigidone: 568598943Sluigi /* 568698943Sluigi * Now copy stuff into the rule. 568798943Sluigi * If we have a keep-state option, the first instruction 568898943Sluigi * must be a PROBE_STATE (which is generated here). 568998943Sluigi * If we have a LOG option, it was stored as the first command, 569098943Sluigi * and now must be moved to the top of the action part. 569198943Sluigi */ 569298943Sluigi dst = (ipfw_insn *)rule->cmd; 569398943Sluigi 569498943Sluigi /* 5695107289Sluigi * First thing to write into the command stream is the match probability. 5696107289Sluigi */ 5697107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5698107289Sluigi dst->opcode = O_PROB; 5699107289Sluigi dst->len = 2; 5700107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5701107289Sluigi dst += dst->len; 5702107289Sluigi } 5703107289Sluigi 5704107289Sluigi /* 570598943Sluigi * generate O_PROBE_STATE if necessary 570698943Sluigi */ 5707101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 570898943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 570998943Sluigi dst = next_cmd(dst); 571098943Sluigi } 5711158879Soleg 5712158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 571398943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 571498943Sluigi i = F_LEN(src); 571598943Sluigi 5716101116Sluigi switch (src->opcode) { 5717101116Sluigi case O_LOG: 5718101116Sluigi case O_KEEP_STATE: 5719101116Sluigi case O_LIMIT: 5720136071Sgreen case O_ALTQ: 5721158879Soleg case O_TAG: 5722101116Sluigi break; 5723101116Sluigi default: 5724117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 572598943Sluigi dst += i; 572698943Sluigi } 572798943Sluigi } 572898943Sluigi 572998943Sluigi /* 5730101116Sluigi * put back the have_state command as last opcode 5731101116Sluigi */ 5732101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5733101116Sluigi i = F_LEN(have_state); 5734117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5735101116Sluigi dst += i; 5736101116Sluigi } 5737101116Sluigi /* 573898943Sluigi * start action section 573998943Sluigi */ 574098943Sluigi rule->act_ofs = dst - rule->cmd; 574198943Sluigi 5742158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5743136071Sgreen if (have_log) { 5744136071Sgreen i = F_LEN(have_log); 5745136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 574698943Sluigi dst += i; 574798943Sluigi } 5748136071Sgreen if (have_altq) { 5749136071Sgreen i = F_LEN(have_altq); 5750136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5751136071Sgreen dst += i; 5752136071Sgreen } 5753158879Soleg if (have_tag) { 5754158879Soleg i = F_LEN(have_tag); 5755158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5756158879Soleg dst += i; 5757158879Soleg } 575898943Sluigi /* 575998943Sluigi * copy all other actions 576098943Sluigi */ 576198943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 576298943Sluigi i = F_LEN(src); 5763117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 576498943Sluigi dst += i; 576598943Sluigi } 576698943Sluigi 5767117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5768117469Sluigi i = (char *)dst - (char *)rule; 5769119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 577098943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 577198943Sluigi if (!do_quiet) 5772117469Sluigi show_ipfw(rule, 0, 0); 577398943Sluigi} 577498943Sluigi 577598943Sluigistatic void 5776117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 577798943Sluigi{ 5778170923Smaxim uint32_t arg, saved_arg; 577998943Sluigi int failed = EX_OK; 5780117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 5781170923Smaxim char const *errstr; 578298943Sluigi 578398943Sluigi av++; ac--; 578498943Sluigi 578598943Sluigi if (!ac) { 578698943Sluigi /* clear all entries */ 5787117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5788117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 578998943Sluigi if (!do_quiet) 5790117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5791117328Sluigi "Accounting cleared":"Logging counts reset"); 579298943Sluigi 579398943Sluigi return; 579498943Sluigi } 579598943Sluigi 579698943Sluigi while (ac) { 579798943Sluigi /* Rule number */ 579898943Sluigi if (isdigit(**av)) { 5799170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 5800170923Smaxim if (errstr) 5801170923Smaxim errx(EX_DATAERR, 5802170923Smaxim "invalid rule number %s\n", *av); 5803170923Smaxim saved_arg = arg; 5804170923Smaxim if (use_set) 5805170923Smaxim arg |= (1 << 24) | ((use_set - 1) << 16); 580698943Sluigi av++; 580798943Sluigi ac--; 5808170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 5809117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5810170923Smaxim saved_arg, name); 581198943Sluigi failed = EX_UNAVAILABLE; 581298943Sluigi } else if (!do_quiet) 5813170923Smaxim printf("Entry %d %s.\n", saved_arg, 5814117328Sluigi optname == IP_FW_ZERO ? 5815117328Sluigi "cleared" : "logging count reset"); 581698943Sluigi } else { 581798943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 581898943Sluigi } 581998943Sluigi } 582098943Sluigi if (failed != EX_OK) 582198943Sluigi exit(failed); 582298943Sluigi} 582398943Sluigi 582498943Sluigistatic void 5825117544Sluigiflush(int force) 582698943Sluigi{ 582798943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 582898943Sluigi 5829117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 583098943Sluigi int c; 583198943Sluigi 583298943Sluigi printf("Are you sure? [yn] "); 583398943Sluigi fflush(stdout); 583498943Sluigi do { 583598943Sluigi c = toupper(getc(stdin)); 583698943Sluigi while (c != '\n' && getc(stdin) != '\n') 583798943Sluigi if (feof(stdin)) 583898943Sluigi return; /* and do not flush */ 583998943Sluigi } while (c != 'Y' && c != 'N'); 584098943Sluigi printf("\n"); 584198943Sluigi if (c == 'N') /* user said no */ 584298943Sluigi return; 584398943Sluigi } 5844170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 5845170923Smaxim if (use_set) { 5846170923Smaxim uint32_t arg = ((use_set - 1) & 0xffff) | (1 << 24); 5847170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 5848170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 5849170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 585098943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 585198943Sluigi do_pipe ? "DUMMYNET" : "FW"); 585298943Sluigi if (!do_quiet) 585398943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 585498943Sluigi} 585598943Sluigi 5856117469Sluigi/* 5857117544Sluigi * Free a the (locally allocated) copy of command line arguments. 5858117469Sluigi */ 5859117544Sluigistatic void 5860117544Sluigifree_args(int ac, char **av) 5861117544Sluigi{ 5862117544Sluigi int i; 5863117544Sluigi 5864117544Sluigi for (i=0; i < ac; i++) 5865117544Sluigi free(av[i]); 5866117544Sluigi free(av); 5867117544Sluigi} 5868117544Sluigi 5869183407Srikstatic void table_list(ipfw_table_entry ent, int need_header); 5870183228Srik 5871117544Sluigi/* 5872130281Sru * This one handles all table-related commands 5873130281Sru * ipfw table N add addr[/masklen] [value] 5874130281Sru * ipfw table N delete addr[/masklen] 5875183407Srik * ipfw table {N | all} flush 5876183407Srik * ipfw table {N | all} list 5877130281Sru */ 5878130281Srustatic void 5879130281Srutable_handler(int ac, char *av[]) 5880130281Sru{ 5881130281Sru ipfw_table_entry ent; 5882130281Sru int do_add; 5883183407Srik int is_all; 5884183241Srik size_t len; 5885130281Sru char *p; 5886183407Srik uint32_t a; 5887183241Srik uint32_t tables_max; 5888130281Sru 5889183263Skeramida len = sizeof(tables_max); 5890183241Srik if (sysctlbyname("net.inet.ip.fw.tables_max", &tables_max, &len, 5891183241Srik NULL, 0) == -1) { 5892183241Srik#ifdef IPFW_TABLES_MAX 5893183241Srik warn("Warn: Failed to get the max tables number via sysctl. " 5894183241Srik "Using the compiled in defaults. \nThe reason was"); 5895183241Srik tables_max = IPFW_TABLES_MAX; 5896183241Srik#else 5897183241Srik errx(1, "Failed sysctlbyname(\"net.inet.ip.fw.tables_max\")"); 5898183241Srik#endif 5899183241Srik } 5900183241Srik 5901130281Sru ac--; av++; 5902130281Sru if (ac && isdigit(**av)) { 5903130281Sru ent.tbl = atoi(*av); 5904183407Srik is_all = 0; 5905130281Sru ac--; av++; 5906183407Srik } else if (ac && _substrcmp(*av, "all") == 0) { 5907183407Srik ent.tbl = 0; 5908183407Srik is_all = 1; 5909183407Srik ac--; av++; 5910130281Sru } else 5911183407Srik errx(EX_USAGE, "table number or 'all' keyword required"); 5912183241Srik if (ent.tbl >= tables_max) 5913183241Srik errx(EX_USAGE, "The table number exceeds the maximum allowed " 5914183241Srik "value (%d)", tables_max - 1); 5915130281Sru NEED1("table needs command"); 5916183407Srik if (is_all && _substrcmp(*av, "list") != 0 5917183407Srik && _substrcmp(*av, "flush") != 0) 5918183407Srik errx(EX_USAGE, "table number required"); 5919183407Srik 5920140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5921140271Sbrooks _substrcmp(*av, "delete") == 0) { 5922130281Sru do_add = **av == 'a'; 5923130281Sru ac--; av++; 5924130281Sru if (!ac) 5925130281Sru errx(EX_USAGE, "IP address required"); 5926130281Sru p = strchr(*av, '/'); 5927130281Sru if (p) { 5928130281Sru *p++ = '\0'; 5929130281Sru ent.masklen = atoi(p); 5930130281Sru if (ent.masklen > 32) 5931130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5932130281Sru } else 5933130281Sru ent.masklen = 32; 5934130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5935130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5936130281Sru ac--; av++; 5937161424Sjulian if (do_add && ac) { 5938161424Sjulian unsigned int tval; 5939161424Sjulian /* isdigit is a bit of a hack here.. */ 5940161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5941161424Sjulian ent.value = strtoul(*av, NULL, 0); 5942161424Sjulian } else { 5943161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5944161424Sjulian /* The value must be stored in host order * 5945161424Sjulian * so that the values < 65k can be distinguished */ 5946161424Sjulian ent.value = ntohl(tval); 5947161424Sjulian } else { 5948161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5949161424Sjulian } 5950161424Sjulian } 5951161424Sjulian } else 5952130281Sru ent.value = 0; 5953130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5954157335Sjulian &ent, sizeof(ent)) < 0) { 5955155639Sjulian /* If running silent, don't bomb out on these errors. */ 5956155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5957155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5958155639Sjulian do_add ? "ADD" : "DEL"); 5959155639Sjulian /* In silent mode, react to a failed add by deleting */ 5960157332Sjulian if (do_add) { 5961155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5962155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5963155639Sjulian &ent, sizeof(ent)) < 0) 5964155639Sjulian err(EX_OSERR, 5965155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5966157332Sjulian } 5967157335Sjulian } 5968140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5969183407Srik a = is_all ? tables_max : (ent.tbl + 1); 5970183407Srik do { 5971183407Srik if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, 5972183407Srik sizeof(ent.tbl)) < 0) 5973183407Srik err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5974183407Srik } while (++ent.tbl < a); 5975140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5976183407Srik a = is_all ? tables_max : (ent.tbl + 1); 5977183407Srik do { 5978183415Srik table_list(ent, is_all); 5979183407Srik } while (++ent.tbl < a); 5980183228Srik } else 5981183228Srik errx(EX_USAGE, "invalid table command %s", *av); 5982183228Srik} 5983183205Srik 5984183228Srikstatic void 5985183407Sriktable_list(ipfw_table_entry ent, int need_header) 5986183228Srik{ 5987183228Srik ipfw_table *tbl; 5988183228Srik socklen_t l; 5989183228Srik uint32_t a; 5990183205Srik 5991183228Srik a = ent.tbl; 5992183228Srik l = sizeof(a); 5993183228Srik if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5994183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5995183228Srik 5996183228Srik /* If a is zero we have nothing to do, the table is empty. */ 5997183228Srik if (a == 0) 5998183228Srik return; 5999183228Srik 6000183228Srik l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 6001187716Sluigi tbl = safe_calloc(1, l); 6002183228Srik tbl->tbl = ent.tbl; 6003183228Srik if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 6004183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 6005183407Srik if (tbl->cnt && need_header) 6006183407Srik printf("---table(%d)---\n", tbl->tbl); 6007183228Srik for (a = 0; a < tbl->cnt; a++) { 6008183228Srik unsigned int tval; 6009183228Srik tval = tbl->ent[a].value; 6010183228Srik if (do_value_as_ip) { 6011183228Srik char tbuf[128]; 6012183228Srik strncpy(tbuf, inet_ntoa(*(struct in_addr *) 6013161456Sjulian &tbl->ent[a].addr), 127); 6014183228Srik /* inet_ntoa expects network order */ 6015183228Srik tval = htonl(tval); 6016183228Srik printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 6017183228Srik inet_ntoa(*(struct in_addr *)&tval)); 6018183228Srik } else { 6019183228Srik printf("%s/%u %u\n", 6020183228Srik inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 6021183228Srik tbl->ent[a].masklen, tval); 6022130281Sru } 6023183228Srik } 6024183228Srik free(tbl); 6025130281Sru} 6026130281Sru 6027165648Spisostatic void 6028183206Srikshow_nat(int ac, char **av) 6029183206Srik{ 6030165648Spiso struct cfg_nat *n; 6031165648Spiso struct cfg_redir *e; 6032165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 6033176393Spiso int nat_cnt, redir_cnt, r; 6034165648Spiso uint8_t *data, *p; 6035183208Srik char *endptr; 6036165648Spiso 6037165648Spiso do_rule = 0; 6038165648Spiso nalloc = 1024; 6039165648Spiso size = 0; 6040165648Spiso data = NULL; 6041176445Spiso frule = 0; 6042182823Srik lrule = IPFW_DEFAULT_RULE; /* max ipfw rule number */ 6043165648Spiso ac--; av++; 6044165648Spiso 6045183889Smaxim if (test_only) 6046183889Smaxim return; 6047183889Smaxim 6048165648Spiso /* Parse parameters. */ 6049165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 6050165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 6051165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 6052165648Spiso continue; 6053165648Spiso } 6054165648Spiso /* Convert command line rule #. */ 6055165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 6056165648Spiso if (*endptr == '-') 6057165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 6058165648Spiso if (lrule == 0) 6059165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 6060165648Spiso do_rule = 1; 6061165648Spiso } 6062165648Spiso 6063165648Spiso nbytes = nalloc; 6064165648Spiso while (nbytes >= nalloc) { 6065165648Spiso nalloc = nalloc * 2; 6066165648Spiso nbytes = nalloc; 6067187716Sluigi data = safe_realloc(data, nbytes); 6068165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 6069165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 6070165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 6071165648Spiso } 6072165648Spiso if (nbytes == 0) 6073176445Spiso exit(0); 6074165648Spiso if (do_cfg) { 6075165648Spiso nat_cnt = *((int *)data); 6076165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 6077165648Spiso n = (struct cfg_nat *)&data[i]; 6078176445Spiso if (frule <= n->id && lrule >= n->id) 6079176445Spiso print_nat_config(&data[i]); 6080165648Spiso i += sizeof(struct cfg_nat); 6081176393Spiso for (redir_cnt = 0; redir_cnt < n->redir_cnt; redir_cnt++) { 6082176393Spiso e = (struct cfg_redir *)&data[i]; 6083165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 6084165648Spiso sizeof(struct cfg_spool); 6085176393Spiso } 6086165648Spiso } 6087165648Spiso } else { 6088165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 6089165648Spiso p = &data[i]; 6090165648Spiso if (p == data + nbytes) 6091165648Spiso break; 6092165648Spiso bcopy(p, &r, sizeof(int)); 6093165648Spiso if (do_rule) { 6094165648Spiso if (!(frule <= r && lrule >= r)) 6095165648Spiso continue; 6096165648Spiso } 6097165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 6098165648Spiso } 6099165648Spiso } 6100165648Spiso} 6101165648Spiso 6102130281Sru/* 6103187713Sluigi * Called with the arguments, including program name because getopt 6104187713Sluigi * wants it to be present. 6105117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 6106117544Sluigi */ 610798943Sluigistatic int 6108117328Sluigiipfw_main(int oldac, char **oldav) 610998943Sluigi{ 6110117469Sluigi int ch, ac, save_ac; 6111170923Smaxim const char *errstr; 6112117469Sluigi char **av, **save_av; 6113117469Sluigi int do_acct = 0; /* Show packet/byte count */ 6114117469Sluigi 6115117469Sluigi#define WHITESP " \t\f\v\n\r" 6116187713Sluigi if (oldac < 2) 6117187713Sluigi return 1; /* need at least one argument */ 6118187713Sluigi if (oldac == 2) { 6119117328Sluigi /* 6120117328Sluigi * If we are called with a single string, try to split it into 6121117328Sluigi * arguments for subsequent parsing. 6122117328Sluigi * But first, remove spaces after a ',', by copying the string 6123117328Sluigi * in-place. 6124117328Sluigi */ 6125187713Sluigi char *arg = oldav[1]; /* The string is the first arg. */ 6126117328Sluigi int l = strlen(arg); 6127117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 6128117328Sluigi int i, j; 6129117469Sluigi for (i = j = 0; i < l; i++) { 6130117469Sluigi if (arg[i] == '#') /* comment marker */ 6131117469Sluigi break; 6132117328Sluigi if (copy) { 6133117328Sluigi arg[j++] = arg[i]; 6134117469Sluigi copy = !index("," WHITESP, arg[i]); 6135117328Sluigi } else { 6136117469Sluigi copy = !index(WHITESP, arg[i]); 6137117328Sluigi if (copy) 6138117328Sluigi arg[j++] = arg[i]; 6139117328Sluigi } 6140117469Sluigi } 6141117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 6142117328Sluigi j--; 6143117328Sluigi l = j; /* the new argument length */ 6144117328Sluigi arg[j++] = '\0'; 6145117469Sluigi if (l == 0) /* empty string! */ 6146117544Sluigi return 1; 6147117328Sluigi 6148117328Sluigi /* 6149117328Sluigi * First, count number of arguments. Because of the previous 6150117469Sluigi * processing, this is just the number of blanks plus 1. 6151117328Sluigi */ 6152117469Sluigi for (i = 0, ac = 1; i < l; i++) 6153117469Sluigi if (index(WHITESP, arg[i]) != NULL) 6154117328Sluigi ac++; 6155117328Sluigi 6156187713Sluigi /* 6157187713Sluigi * Allocate the argument list, including one entry for 6158187713Sluigi * the program name because getopt expects it. 6159187713Sluigi */ 6160187716Sluigi av = safe_calloc(ac + 1, sizeof(char *)); 6161117328Sluigi 6162117328Sluigi /* 6163187713Sluigi * Second, copy arguments from arg[] to av[]. For each one, 6164117328Sluigi * j is the initial character, i is the one past the end. 6165117328Sluigi */ 6166187713Sluigi for (ac = 1, i = j = 0; i < l; i++) 6167117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 6168117328Sluigi if (i == l-1) 6169117328Sluigi i++; 6170187716Sluigi av[ac] = safe_calloc(i-j+1, 1); 6171117328Sluigi bcopy(arg+j, av[ac], i-j); 6172117328Sluigi ac++; 6173117328Sluigi j = i + 1; 6174117328Sluigi } 6175117328Sluigi } else { 6176117328Sluigi /* 6177117328Sluigi * If an argument ends with ',' join with the next one. 6178117328Sluigi */ 6179117328Sluigi int first, i, l; 6180117328Sluigi 6181187716Sluigi av = safe_calloc(oldac, sizeof(char *)); 6182187713Sluigi for (first = i = ac = 1, l = 0; i < oldac; i++) { 6183117328Sluigi char *arg = oldav[i]; 6184117328Sluigi int k = strlen(arg); 6185117328Sluigi 6186117328Sluigi l += k; 6187117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 6188117328Sluigi /* Time to copy. */ 6189187716Sluigi av[ac] = safe_calloc(l+1, 1); 6190117328Sluigi for (l=0; first <= i; first++) { 6191117328Sluigi strcat(av[ac]+l, oldav[first]); 6192117328Sluigi l += strlen(oldav[first]); 6193117328Sluigi } 6194117328Sluigi ac++; 6195117328Sluigi l = 0; 6196117328Sluigi first = i+1; 6197117328Sluigi } 6198117328Sluigi } 6199117328Sluigi } 6200117328Sluigi 6201187713Sluigi av[0] = strdup(oldav[0]); /* copy progname from the caller */ 620298943Sluigi /* Set the force flag for non-interactive processes */ 6203123804Smaxim if (!do_force) 6204123804Smaxim do_force = !isatty(STDIN_FILENO); 620598943Sluigi 6206117469Sluigi /* Save arguments for final freeing of memory. */ 6207117469Sluigi save_ac = ac; 6208117469Sluigi save_av = av; 6209117469Sluigi 6210187713Sluigi optind = optreset = 1; /* restart getopt() */ 6211176391Sjulian while ((ch = getopt(ac, av, "abcdefhinNqs:STtv")) != -1) 621298943Sluigi switch (ch) { 621398943Sluigi case 'a': 621498943Sluigi do_acct = 1; 621598943Sluigi break; 6216117328Sluigi 6217123495Sluigi case 'b': 6218123495Sluigi comment_only = 1; 6219123495Sluigi do_compact = 1; 6220123495Sluigi break; 6221123495Sluigi 6222102098Sluigi case 'c': 6223102098Sluigi do_compact = 1; 6224102098Sluigi break; 6225117328Sluigi 622698943Sluigi case 'd': 622798943Sluigi do_dynamic = 1; 622898943Sluigi break; 6229117328Sluigi 623098943Sluigi case 'e': 623198943Sluigi do_expired = 1; 623298943Sluigi break; 6233117328Sluigi 623498943Sluigi case 'f': 623598943Sluigi do_force = 1; 623698943Sluigi break; 6237117328Sluigi 6238117328Sluigi case 'h': /* help */ 6239117544Sluigi free_args(save_ac, save_av); 6240117328Sluigi help(); 6241117328Sluigi break; /* NOTREACHED */ 6242117328Sluigi 6243176391Sjulian case 'i': 6244176391Sjulian do_value_as_ip = 1; 6245176391Sjulian break; 6246176391Sjulian 6247117328Sluigi case 'n': 6248117328Sluigi test_only = 1; 6249117328Sluigi break; 6250117328Sluigi 625198943Sluigi case 'N': 625298943Sluigi do_resolv = 1; 625398943Sluigi break; 6254117328Sluigi 625598943Sluigi case 'q': 625698943Sluigi do_quiet = 1; 625798943Sluigi break; 6258117328Sluigi 6259117328Sluigi case 's': /* sort */ 6260117328Sluigi do_sort = atoi(optarg); 6261117328Sluigi break; 6262117328Sluigi 6263101628Sluigi case 'S': 6264101628Sluigi show_sets = 1; 6265101628Sluigi break; 6266117328Sluigi 626798943Sluigi case 't': 626898943Sluigi do_time = 1; 626998943Sluigi break; 6270117328Sluigi 6271117472Sluigi case 'T': 6272117472Sluigi do_time = 2; /* numeric timestamp */ 6273117472Sluigi break; 6274117472Sluigi 627598943Sluigi case 'v': /* verbose */ 6276117328Sluigi verbose = 1; 627798943Sluigi break; 6278117328Sluigi 627998943Sluigi default: 6280117544Sluigi free_args(save_ac, save_av); 6281117544Sluigi return 1; 628298943Sluigi } 628398943Sluigi 628498943Sluigi ac -= optind; 628598943Sluigi av += optind; 628698943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 628798943Sluigi 628898943Sluigi /* 6289117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 6290117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 6291117544Sluigi * In case, swap first and second argument to get the normal form. 6292117544Sluigi */ 6293117544Sluigi if (ac > 1 && isdigit(*av[0])) { 6294117544Sluigi char *p = av[0]; 6295117544Sluigi 6296117544Sluigi av[0] = av[1]; 6297117544Sluigi av[1] = p; 6298117544Sluigi } 6299117544Sluigi 6300117544Sluigi /* 6301165648Spiso * Optional: pipe, queue or nat. 630298943Sluigi */ 6303165648Spiso do_nat = 0; 6304117821Smaxim do_pipe = 0; 6305165648Spiso if (!strncmp(*av, "nat", strlen(*av))) 6306165648Spiso do_nat = 1; 6307165648Spiso else if (!strncmp(*av, "pipe", strlen(*av))) 630898943Sluigi do_pipe = 1; 6309140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 631098943Sluigi do_pipe = 2; 6311170923Smaxim else if (!strncmp(*av, "set", strlen(*av))) { 6312170923Smaxim if (ac > 1 && isdigit(av[1][0])) { 6313170923Smaxim use_set = strtonum(av[1], 0, RESVD_SET, &errstr); 6314170923Smaxim if (errstr) 6315170923Smaxim errx(EX_DATAERR, 6316170923Smaxim "invalid set number %s\n", av[1]); 6317170923Smaxim ac -= 2; av += 2; use_set++; 6318170923Smaxim } 6319170923Smaxim } 6320170923Smaxim 6321165648Spiso if (do_pipe || do_nat) { 632298943Sluigi ac--; 632398943Sluigi av++; 632498943Sluigi } 632598943Sluigi NEED1("missing command"); 632698943Sluigi 632798943Sluigi /* 6328165648Spiso * For pipes, queues and nats we normally say 'nat|pipe NN config' 6329165648Spiso * but the code is easier to parse as 'nat|pipe config NN' 633098943Sluigi * so we swap the two arguments. 633198943Sluigi */ 6332165648Spiso if ((do_pipe || do_nat) && ac > 1 && isdigit(*av[0])) { 633398943Sluigi char *p = av[0]; 6334117544Sluigi 633598943Sluigi av[0] = av[1]; 633698943Sluigi av[1] = p; 633798943Sluigi } 6338117328Sluigi 6339170923Smaxim int try_next = 0; 6340170923Smaxim if (use_set == 0) { 6341170923Smaxim if (_substrcmp(*av, "add") == 0) 6342170923Smaxim add(ac, av); 6343170923Smaxim else if (do_nat && _substrcmp(*av, "show") == 0) 6344170923Smaxim show_nat(ac, av); 6345170923Smaxim else if (do_pipe && _substrcmp(*av, "config") == 0) 6346170923Smaxim config_pipe(ac, av); 6347170923Smaxim else if (do_nat && _substrcmp(*av, "config") == 0) 6348170923Smaxim config_nat(ac, av); 6349173080Smaxim else if (_substrcmp(*av, "set") == 0) 6350173080Smaxim sets_handler(ac, av); 6351173080Smaxim else if (_substrcmp(*av, "table") == 0) 6352173080Smaxim table_handler(ac, av); 6353173080Smaxim else if (_substrcmp(*av, "enable") == 0) 6354173080Smaxim sysctl_handler(ac, av, 1); 6355173080Smaxim else if (_substrcmp(*av, "disable") == 0) 6356173080Smaxim sysctl_handler(ac, av, 0); 6357173080Smaxim else 6358173080Smaxim try_next = 1; 6359170923Smaxim } 6360117469Sluigi 6361170923Smaxim if (use_set || try_next) { 6362170923Smaxim if (_substrcmp(*av, "delete") == 0) 6363170923Smaxim delete(ac, av); 6364170923Smaxim else if (_substrcmp(*av, "flush") == 0) 6365170923Smaxim flush(do_force); 6366170923Smaxim else if (_substrcmp(*av, "zero") == 0) 6367170923Smaxim zero(ac, av, IP_FW_ZERO); 6368170923Smaxim else if (_substrcmp(*av, "resetlog") == 0) 6369170923Smaxim zero(ac, av, IP_FW_RESETLOG); 6370170923Smaxim else if (_substrcmp(*av, "print") == 0 || 6371170923Smaxim _substrcmp(*av, "list") == 0) 6372170923Smaxim list(ac, av, do_acct); 6373170923Smaxim else if (_substrcmp(*av, "show") == 0) 6374170923Smaxim list(ac, av, 1 /* show counters */); 6375170923Smaxim else 6376170923Smaxim errx(EX_USAGE, "bad command `%s'", *av); 6377170923Smaxim } 6378170923Smaxim 6379117469Sluigi /* Free memory allocated in the argument parsing. */ 6380117544Sluigi free_args(save_ac, save_av); 638198943Sluigi return 0; 638298943Sluigi} 638398943Sluigi 638498943Sluigi 638598943Sluigistatic void 6386106505Smaximipfw_readfile(int ac, char *av[]) 638798943Sluigi{ 638898943Sluigi#define MAX_ARGS 32 638998943Sluigi char buf[BUFSIZ]; 6390187716Sluigi char *progname = av[0]; /* original program name */ 6391187713Sluigi const char *cmd = NULL; /* preprocessor name, if any */ 6392187713Sluigi const char *filename = av[ac-1]; /* file to read */ 6393117469Sluigi int c, lineno=0; 639498943Sluigi FILE *f = NULL; 639598943Sluigi pid_t preproc = 0; 639698943Sluigi 6397123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 639898943Sluigi switch(c) { 6399117469Sluigi case 'c': 6400117469Sluigi do_compact = 1; 6401117469Sluigi break; 6402117469Sluigi 6403123804Smaxim case 'f': 6404123804Smaxim do_force = 1; 6405123804Smaxim break; 6406123804Smaxim 6407117469Sluigi case 'N': 6408117469Sluigi do_resolv = 1; 6409117469Sluigi break; 6410117469Sluigi 6411117328Sluigi case 'n': 6412117328Sluigi test_only = 1; 6413117328Sluigi break; 6414117328Sluigi 641598943Sluigi case 'p': 6416117469Sluigi /* 6417187713Sluigi * ipfw -p cmd [args] filename 6418187713Sluigi * 6419187713Sluigi * We are done with getopt(). All arguments 6420187713Sluigi * except the filename go to the preprocessor, 6421187713Sluigi * so we need to do the following: 6422187713Sluigi * - check that a filename is actually present; 6423187713Sluigi * - advance av by optind-1 to skip arguments 6424187713Sluigi * already processed; 6425187713Sluigi * - decrease ac by optind, to remove the args 6426187713Sluigi * already processed and the final filename; 6427187713Sluigi * - set the last entry in av[] to NULL so 6428187713Sluigi * popen() can detect the end of the array; 6429187713Sluigi * - set optind=ac to let getopt() terminate. 6430117469Sluigi */ 6431187713Sluigi if (optind == ac) 6432162773Smaxim errx(EX_USAGE, "no filename argument"); 6433187713Sluigi cmd = optarg; 6434117469Sluigi av[ac-1] = NULL; 6435187713Sluigi av += optind - 1; 6436187713Sluigi ac -= optind; 6437187713Sluigi optind = ac; 643898943Sluigi break; 643998943Sluigi 644098943Sluigi case 'q': 6441117469Sluigi do_quiet = 1; 644298943Sluigi break; 644398943Sluigi 6444117469Sluigi case 'S': 6445117469Sluigi show_sets = 1; 6446117469Sluigi break; 6447117469Sluigi 644898943Sluigi default: 644998943Sluigi errx(EX_USAGE, "bad arguments, for usage" 645098943Sluigi " summary ``ipfw''"); 645198943Sluigi } 645298943Sluigi 6453108231Skbyanc } 6454108231Skbyanc 6455117469Sluigi if (cmd == NULL && ac != optind + 1) { 6456117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 6457117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 6458108231Skbyanc } 6459108231Skbyanc 6460117469Sluigi if ((f = fopen(filename, "r")) == NULL) 6461117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 646298943Sluigi 6463117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 646498943Sluigi int pipedes[2]; 646598943Sluigi 646698943Sluigi if (pipe(pipedes) == -1) 646798943Sluigi err(EX_OSERR, "cannot create pipe"); 646898943Sluigi 6469117469Sluigi preproc = fork(); 6470117469Sluigi if (preproc == -1) 647198943Sluigi err(EX_OSERR, "cannot fork"); 647298943Sluigi 6473117577Sluigi if (preproc == 0) { 6474117469Sluigi /* 6475117469Sluigi * Child, will run the preprocessor with the 6476117469Sluigi * file on stdin and the pipe on stdout. 6477117469Sluigi */ 647898943Sluigi if (dup2(fileno(f), 0) == -1 647998943Sluigi || dup2(pipedes[1], 1) == -1) 648098943Sluigi err(EX_OSERR, "dup2()"); 648198943Sluigi fclose(f); 648298943Sluigi close(pipedes[1]); 648398943Sluigi close(pipedes[0]); 6484117469Sluigi execvp(cmd, av); 648598943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 6486117469Sluigi } else { /* parent, will reopen f as the pipe */ 648798943Sluigi fclose(f); 648898943Sluigi close(pipedes[1]); 648998943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 649098943Sluigi int savederrno = errno; 649198943Sluigi 649298943Sluigi (void)kill(preproc, SIGTERM); 649398943Sluigi errno = savederrno; 649498943Sluigi err(EX_OSERR, "fdopen()"); 649598943Sluigi } 649698943Sluigi } 649798943Sluigi } 649898943Sluigi 6499117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 6500117469Sluigi char linename[10]; 6501187713Sluigi char *args[2]; 6502117469Sluigi 650398943Sluigi lineno++; 650498943Sluigi sprintf(linename, "Line %d", lineno); 6505117328Sluigi setprogname(linename); /* XXX */ 6506187716Sluigi args[0] = progname; 6507187713Sluigi args[1] = buf; 6508187713Sluigi ipfw_main(2, args); 650998943Sluigi } 651098943Sluigi fclose(f); 6511117469Sluigi if (cmd != NULL) { 6512117469Sluigi int status; 6513117469Sluigi 651498943Sluigi if (waitpid(preproc, &status, 0) == -1) 651598943Sluigi errx(EX_OSERR, "waitpid()"); 651698943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 651798943Sluigi errx(EX_UNAVAILABLE, 651898943Sluigi "preprocessor exited with status %d", 651998943Sluigi WEXITSTATUS(status)); 652098943Sluigi else if (WIFSIGNALED(status)) 652198943Sluigi errx(EX_UNAVAILABLE, 652298943Sluigi "preprocessor exited with signal %d", 652398943Sluigi WTERMSIG(status)); 652498943Sluigi } 652598943Sluigi} 652698943Sluigi 652798943Sluigiint 652898943Sluigimain(int ac, char *av[]) 652998943Sluigi{ 653098943Sluigi /* 653198943Sluigi * If the last argument is an absolute pathname, interpret it 653298943Sluigi * as a file to be preprocessed. 653398943Sluigi */ 653498943Sluigi 653598943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 653698943Sluigi ipfw_readfile(ac, av); 6537117544Sluigi else { 6538187713Sluigi if (ipfw_main(ac, av)) 6539117544Sluigi show_usage(); 6540117544Sluigi } 654198943Sluigi return EX_OK; 654298943Sluigi} 6543