ipfw2.c revision 172306
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 172306 2007-09-23 16:29:22Z maxim $ 2198943Sluigi */ 2298943Sluigi 2398943Sluigi#include <sys/param.h> 2498943Sluigi#include <sys/mbuf.h> 2598943Sluigi#include <sys/socket.h> 2698943Sluigi#include <sys/sockio.h> 2798943Sluigi#include <sys/sysctl.h> 2898943Sluigi#include <sys/time.h> 2998943Sluigi#include <sys/wait.h> 30136071Sgreen#include <sys/queue.h> 3198943Sluigi 3298943Sluigi#include <ctype.h> 3398943Sluigi#include <err.h> 3498943Sluigi#include <errno.h> 3598943Sluigi#include <grp.h> 3698943Sluigi#include <limits.h> 3798943Sluigi#include <netdb.h> 3898943Sluigi#include <pwd.h> 3998943Sluigi#include <signal.h> 4098943Sluigi#include <stdio.h> 4198943Sluigi#include <stdlib.h> 4298943Sluigi#include <stdarg.h> 4398943Sluigi#include <string.h> 44117469Sluigi#include <timeconv.h> /* XXX do we need this ? */ 4598943Sluigi#include <unistd.h> 4698943Sluigi#include <sysexits.h> 47136071Sgreen#include <unistd.h> 48136071Sgreen#include <fcntl.h> 4998943Sluigi 50169424Smaxim#include <net/ethernet.h> 5198943Sluigi#include <net/if.h> 52165648Spiso#include <net/if_dl.h> 53136071Sgreen#include <net/pfvar.h> 54145246Sbrooks#include <net/route.h> /* def. of struct route */ 5598943Sluigi#include <netinet/in.h> 5698943Sluigi#include <netinet/in_systm.h> 5798943Sluigi#include <netinet/ip.h> 5898943Sluigi#include <netinet/ip_icmp.h> 59145246Sbrooks#include <netinet/icmp6.h> 6098943Sluigi#include <netinet/ip_fw.h> 6198943Sluigi#include <netinet/ip_dummynet.h> 6298943Sluigi#include <netinet/tcp.h> 6398943Sluigi#include <arpa/inet.h> 64165648Spiso#include <alias.h> 6598943Sluigi 66117328Sluigiint 6798943Sluigi do_resolv, /* Would try to resolve all */ 6898943Sluigi do_time, /* Show time stamps */ 6998943Sluigi do_quiet, /* Be quiet in add and flush */ 7098943Sluigi do_pipe, /* this cmd refers to a pipe */ 71165648Spiso do_nat, /* Nat configuration. */ 7298943Sluigi do_sort, /* field to sort results (0 = no) */ 7398943Sluigi do_dynamic, /* display dynamic rules */ 7498943Sluigi do_expired, /* display expired dynamic rules */ 75102098Sluigi do_compact, /* show rules in compact mode */ 76123804Smaxim do_force, /* do not ask for confirmation */ 77170923Smaxim use_set, /* work with specified set number */ 78101628Sluigi show_sets, /* display rule sets */ 79117328Sluigi test_only, /* only check syntax */ 80123495Sluigi comment_only, /* only print action and comment */ 8198943Sluigi verbose; 8298943Sluigi 8398943Sluigi#define IP_MASK_ALL 0xffffffff 84130013Scsjp/* 85130013Scsjp * the following macro returns an error message if we run out of 86130013Scsjp * arguments. 87130013Scsjp */ 88130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 8998943Sluigi 90159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 91159636Soleg if (!ac) \ 92159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 93159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 94159636Soleg arg = IP_FW_TABLEARG; \ 95159636Soleg break; \ 96159636Soleg } \ 97159636Soleg \ 98159636Soleg { \ 99159636Soleg long val; \ 100159636Soleg char *end; \ 101159636Soleg \ 102159636Soleg val = strtol(*av, &end, 10); \ 103159636Soleg \ 104159636Soleg if (!isdigit(**av) || *end != '\0' || (val == 0 && errno == EINVAL)) \ 105159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 106159636Soleg match_value(s_x, tok), *av); \ 107159636Soleg \ 108159636Soleg if (errno == ERANGE || val < min || val > max) \ 109159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 110159636Soleg match_value(s_x, tok), min, max, *av); \ 111159636Soleg \ 112159636Soleg if (val == IP_FW_TABLEARG) \ 113159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 114159636Soleg match_value(s_x, tok), *av); \ 115159636Soleg arg = val; \ 116159636Soleg } \ 117158879Soleg} while (0) 118158879Soleg 119159636Soleg#define PRINT_UINT_ARG(str, arg) do { \ 120159636Soleg if (str != NULL) \ 121159636Soleg printf("%s",str); \ 122159636Soleg if (arg == IP_FW_TABLEARG) \ 123159636Soleg printf("tablearg"); \ 124159636Soleg else \ 125159636Soleg printf("%u", (uint32_t)arg); \ 126159636Soleg} while (0) 127159636Soleg 12898943Sluigi/* 129117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 130117328Sluigi * various places in the parser. Entries are stored in arrays, 131117328Sluigi * with an entry with s=NULL as terminator. 132117328Sluigi * The search routines are match_token() and match_value(). 133117328Sluigi * Often, an element with x=0 contains an error string. 13498943Sluigi * 13598943Sluigi */ 13698943Sluigistruct _s_x { 137117469Sluigi char const *s; 13898943Sluigi int x; 13998943Sluigi}; 14098943Sluigi 14198943Sluigistatic struct _s_x f_tcpflags[] = { 14298943Sluigi { "syn", TH_SYN }, 14398943Sluigi { "fin", TH_FIN }, 14498943Sluigi { "ack", TH_ACK }, 14598943Sluigi { "psh", TH_PUSH }, 14698943Sluigi { "rst", TH_RST }, 14798943Sluigi { "urg", TH_URG }, 14898943Sluigi { "tcp flag", 0 }, 14998943Sluigi { NULL, 0 } 15098943Sluigi}; 15198943Sluigi 15298943Sluigistatic struct _s_x f_tcpopts[] = { 15398943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 15498943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 15598943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 15698943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 15798943Sluigi { "ts", IP_FW_TCPOPT_TS }, 15898943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 15998943Sluigi { "cc", IP_FW_TCPOPT_CC }, 16098943Sluigi { "tcp option", 0 }, 16198943Sluigi { NULL, 0 } 16298943Sluigi}; 16398943Sluigi 16498943Sluigi/* 16598943Sluigi * IP options span the range 0 to 255 so we need to remap them 16698943Sluigi * (though in fact only the low 5 bits are significant). 16798943Sluigi */ 16898943Sluigistatic struct _s_x f_ipopts[] = { 16998943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 17098943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 17198943Sluigi { "rr", IP_FW_IPOPT_RR}, 17298943Sluigi { "ts", IP_FW_IPOPT_TS}, 17398943Sluigi { "ip option", 0 }, 17498943Sluigi { NULL, 0 } 17598943Sluigi}; 17698943Sluigi 17798943Sluigistatic struct _s_x f_iptos[] = { 17898943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 17998943Sluigi { "throughput", IPTOS_THROUGHPUT}, 18098943Sluigi { "reliability", IPTOS_RELIABILITY}, 18198943Sluigi { "mincost", IPTOS_MINCOST}, 18298943Sluigi { "congestion", IPTOS_CE}, 18398943Sluigi { "ecntransport", IPTOS_ECT}, 18498943Sluigi { "ip tos option", 0}, 18598943Sluigi { NULL, 0 } 18698943Sluigi}; 18798943Sluigi 18898943Sluigistatic struct _s_x limit_masks[] = { 18998943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 19098943Sluigi {"src-addr", DYN_SRC_ADDR}, 19198943Sluigi {"src-port", DYN_SRC_PORT}, 19298943Sluigi {"dst-addr", DYN_DST_ADDR}, 19398943Sluigi {"dst-port", DYN_DST_PORT}, 19498943Sluigi {NULL, 0} 19598943Sluigi}; 19698943Sluigi 19798943Sluigi/* 19898943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 19998943Sluigi * This is only used in this code. 20098943Sluigi */ 20198943Sluigi#define IPPROTO_ETHERTYPE 0x1000 20298943Sluigistatic struct _s_x ether_types[] = { 20398943Sluigi /* 20498943Sluigi * Note, we cannot use "-:&/" in the names because they are field 20598943Sluigi * separators in the type specifications. Also, we use s = NULL as 20698943Sluigi * end-delimiter, because a type of 0 can be legal. 20798943Sluigi */ 20898943Sluigi { "ip", 0x0800 }, 20998943Sluigi { "ipv4", 0x0800 }, 21098943Sluigi { "ipv6", 0x86dd }, 21198943Sluigi { "arp", 0x0806 }, 21298943Sluigi { "rarp", 0x8035 }, 21398943Sluigi { "vlan", 0x8100 }, 21498943Sluigi { "loop", 0x9000 }, 21598943Sluigi { "trail", 0x1000 }, 21698943Sluigi { "at", 0x809b }, 21798943Sluigi { "atalk", 0x809b }, 21898943Sluigi { "aarp", 0x80f3 }, 21998943Sluigi { "pppoe_disc", 0x8863 }, 22098943Sluigi { "pppoe_sess", 0x8864 }, 22198943Sluigi { "ipx_8022", 0x00E0 }, 22298943Sluigi { "ipx_8023", 0x0000 }, 22398943Sluigi { "ipx_ii", 0x8137 }, 22498943Sluigi { "ipx_snap", 0x8137 }, 22598943Sluigi { "ipx", 0x8137 }, 22698943Sluigi { "ns", 0x0600 }, 22798943Sluigi { NULL, 0 } 22898943Sluigi}; 22998943Sluigi 23098943Sluigistatic void show_usage(void); 23198943Sluigi 23298943Sluigienum tokens { 23398943Sluigi TOK_NULL=0, 23498943Sluigi 23598943Sluigi TOK_OR, 23698943Sluigi TOK_NOT, 237101641Sluigi TOK_STARTBRACE, 238101641Sluigi TOK_ENDBRACE, 23998943Sluigi 24098943Sluigi TOK_ACCEPT, 24198943Sluigi TOK_COUNT, 24298943Sluigi TOK_PIPE, 24398943Sluigi TOK_QUEUE, 24498943Sluigi TOK_DIVERT, 24598943Sluigi TOK_TEE, 246141351Sglebius TOK_NETGRAPH, 247141351Sglebius TOK_NGTEE, 24898943Sluigi TOK_FORWARD, 24998943Sluigi TOK_SKIPTO, 25098943Sluigi TOK_DENY, 25198943Sluigi TOK_REJECT, 25298943Sluigi TOK_RESET, 25398943Sluigi TOK_UNREACH, 25498943Sluigi TOK_CHECKSTATE, 255165648Spiso TOK_NAT, 25698943Sluigi 257136071Sgreen TOK_ALTQ, 258136071Sgreen TOK_LOG, 259158879Soleg TOK_TAG, 260158879Soleg TOK_UNTAG, 261136071Sgreen 262158879Soleg TOK_TAGGED, 26398943Sluigi TOK_UID, 26498943Sluigi TOK_GID, 265133600Scsjp TOK_JAIL, 26698943Sluigi TOK_IN, 26798943Sluigi TOK_LIMIT, 26898943Sluigi TOK_KEEPSTATE, 26998943Sluigi TOK_LAYER2, 27098943Sluigi TOK_OUT, 271136073Sgreen TOK_DIVERTED, 272136073Sgreen TOK_DIVERTEDLOOPBACK, 273136073Sgreen TOK_DIVERTEDOUTPUT, 27498943Sluigi TOK_XMIT, 27598943Sluigi TOK_RECV, 27698943Sluigi TOK_VIA, 27798943Sluigi TOK_FRAG, 27898943Sluigi TOK_IPOPTS, 27998943Sluigi TOK_IPLEN, 28098943Sluigi TOK_IPID, 28198943Sluigi TOK_IPPRECEDENCE, 28298943Sluigi TOK_IPTOS, 28398943Sluigi TOK_IPTTL, 28498943Sluigi TOK_IPVER, 28598943Sluigi TOK_ESTAB, 28698943Sluigi TOK_SETUP, 287136075Sgreen TOK_TCPDATALEN, 28898943Sluigi TOK_TCPFLAGS, 28998943Sluigi TOK_TCPOPTS, 29098943Sluigi TOK_TCPSEQ, 29198943Sluigi TOK_TCPACK, 29298943Sluigi TOK_TCPWIN, 29398943Sluigi TOK_ICMPTYPES, 294102087Sluigi TOK_MAC, 295102087Sluigi TOK_MACTYPE, 296112250Scjc TOK_VERREVPATH, 297128575Sandre TOK_VERSRCREACH, 298133387Sandre TOK_ANTISPOOF, 299117241Sluigi TOK_IPSEC, 300117469Sluigi TOK_COMMENT, 30198943Sluigi 30298943Sluigi TOK_PLR, 303101978Sluigi TOK_NOERROR, 30498943Sluigi TOK_BUCKETS, 30598943Sluigi TOK_DSTIP, 30698943Sluigi TOK_SRCIP, 30798943Sluigi TOK_DSTPORT, 30898943Sluigi TOK_SRCPORT, 30998943Sluigi TOK_ALL, 31098943Sluigi TOK_MASK, 31198943Sluigi TOK_BW, 31298943Sluigi TOK_DELAY, 31398943Sluigi TOK_RED, 31498943Sluigi TOK_GRED, 31598943Sluigi TOK_DROPTAIL, 31698943Sluigi TOK_PROTO, 31798943Sluigi TOK_WEIGHT, 318165648Spiso TOK_IP, 319165648Spiso TOK_IF, 320165648Spiso TOK_ALOG, 321165648Spiso TOK_DENY_INC, 322165648Spiso TOK_SAME_PORTS, 323165648Spiso TOK_UNREG_ONLY, 324165648Spiso TOK_RESET_ADDR, 325165648Spiso TOK_ALIAS_REV, 326165648Spiso TOK_PROXY_ONLY, 327165648Spiso TOK_REDIR_ADDR, 328165648Spiso TOK_REDIR_PORT, 329165648Spiso TOK_REDIR_PROTO, 330145246Sbrooks 331145246Sbrooks TOK_IPV6, 332145246Sbrooks TOK_FLOWID, 333145246Sbrooks TOK_ICMP6TYPES, 334145246Sbrooks TOK_EXT6HDR, 335145246Sbrooks TOK_DSTIP6, 336145246Sbrooks TOK_SRCIP6, 337146894Smlaier 338146894Smlaier TOK_IPV4, 339149020Sbz TOK_UNREACH6, 340149020Sbz TOK_RESET6, 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 }, 413117328Sluigi { NULL, 0 } /* terminator */ 41498943Sluigi}; 41598943Sluigi 416136071Sgreenstruct _s_x rule_action_params[] = { 417136071Sgreen { "altq", TOK_ALTQ }, 418136071Sgreen { "log", TOK_LOG }, 419158879Soleg { "tag", TOK_TAG }, 420158879Soleg { "untag", TOK_UNTAG }, 421136071Sgreen { NULL, 0 } /* terminator */ 422136071Sgreen}; 423136071Sgreen 42498943Sluigistruct _s_x rule_options[] = { 425158879Soleg { "tagged", TOK_TAGGED }, 42698943Sluigi { "uid", TOK_UID }, 42798943Sluigi { "gid", TOK_GID }, 428133600Scsjp { "jail", TOK_JAIL }, 42998943Sluigi { "in", TOK_IN }, 43098943Sluigi { "limit", TOK_LIMIT }, 43198943Sluigi { "keep-state", TOK_KEEPSTATE }, 43298943Sluigi { "bridged", TOK_LAYER2 }, 43398943Sluigi { "layer2", TOK_LAYER2 }, 43498943Sluigi { "out", TOK_OUT }, 435136073Sgreen { "diverted", TOK_DIVERTED }, 436136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 437136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 43898943Sluigi { "xmit", TOK_XMIT }, 43998943Sluigi { "recv", TOK_RECV }, 44098943Sluigi { "via", TOK_VIA }, 44198943Sluigi { "fragment", TOK_FRAG }, 44298943Sluigi { "frag", TOK_FRAG }, 44398943Sluigi { "ipoptions", TOK_IPOPTS }, 44498943Sluigi { "ipopts", TOK_IPOPTS }, 44598943Sluigi { "iplen", TOK_IPLEN }, 44698943Sluigi { "ipid", TOK_IPID }, 44798943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 44898943Sluigi { "iptos", TOK_IPTOS }, 44998943Sluigi { "ipttl", TOK_IPTTL }, 45098943Sluigi { "ipversion", TOK_IPVER }, 45198943Sluigi { "ipver", TOK_IPVER }, 45298943Sluigi { "estab", TOK_ESTAB }, 45398943Sluigi { "established", TOK_ESTAB }, 45498943Sluigi { "setup", TOK_SETUP }, 455136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 45698943Sluigi { "tcpflags", TOK_TCPFLAGS }, 45798943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 45898943Sluigi { "tcpoptions", TOK_TCPOPTS }, 45998943Sluigi { "tcpopts", TOK_TCPOPTS }, 46098943Sluigi { "tcpseq", TOK_TCPSEQ }, 46198943Sluigi { "tcpack", TOK_TCPACK }, 46298943Sluigi { "tcpwin", TOK_TCPWIN }, 46399909Sluigi { "icmptype", TOK_ICMPTYPES }, 46498943Sluigi { "icmptypes", TOK_ICMPTYPES }, 465102087Sluigi { "dst-ip", TOK_DSTIP }, 466102087Sluigi { "src-ip", TOK_SRCIP }, 467102087Sluigi { "dst-port", TOK_DSTPORT }, 468102087Sluigi { "src-port", TOK_SRCPORT }, 469102087Sluigi { "proto", TOK_PROTO }, 470102087Sluigi { "MAC", TOK_MAC }, 471102087Sluigi { "mac", TOK_MAC }, 472102087Sluigi { "mac-type", TOK_MACTYPE }, 473112250Scjc { "verrevpath", TOK_VERREVPATH }, 474128575Sandre { "versrcreach", TOK_VERSRCREACH }, 475133387Sandre { "antispoof", TOK_ANTISPOOF }, 476117241Sluigi { "ipsec", TOK_IPSEC }, 477145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 478145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 479145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 480145246Sbrooks { "flow-id", TOK_FLOWID}, 481145246Sbrooks { "ipv6", TOK_IPV6}, 482145246Sbrooks { "ip6", TOK_IPV6}, 483146894Smlaier { "ipv4", TOK_IPV4}, 484146894Smlaier { "ip4", TOK_IPV4}, 485145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 486145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 487145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 488145246Sbrooks { "src-ip6", TOK_SRCIP6}, 489117469Sluigi { "//", TOK_COMMENT }, 49098943Sluigi 49198943Sluigi { "not", TOK_NOT }, /* pseudo option */ 49298943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 49398943Sluigi { "or", TOK_OR }, /* pseudo option */ 49498943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 495101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 496101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 497101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 498101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 499117328Sluigi { NULL, 0 } /* terminator */ 50098943Sluigi}; 50198943Sluigi 502153374Sglebius#define TABLEARG "tablearg" 503153374Sglebius 504117328Sluigistatic __inline uint64_t 505117328Sluigialign_uint64(uint64_t *pll) { 506117328Sluigi uint64_t ret; 507115793Sticso 508115793Sticso bcopy (pll, &ret, sizeof(ret)); 509115793Sticso return ret; 510129389Sstefanf} 511115793Sticso 512117328Sluigi/* 513117328Sluigi * conditionally runs the command. 514117328Sluigi */ 515117469Sluigistatic int 516119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 517117328Sluigi{ 518117328Sluigi static int s = -1; /* the socket */ 519117328Sluigi int i; 520117577Sluigi 521117328Sluigi if (test_only) 522117328Sluigi return 0; 523117328Sluigi 524117328Sluigi if (s == -1) 525117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 526117328Sluigi if (s < 0) 527117328Sluigi err(EX_UNAVAILABLE, "socket"); 528117328Sluigi 529117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 530130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 531165648Spiso optname == IP_FW_TABLE_GETSIZE || 532165648Spiso optname == IP_FW_NAT_GET_CONFIG || 533165648Spiso optname == IP_FW_NAT_GET_LOG) 534117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 535117328Sluigi (socklen_t *)optlen); 536117328Sluigi else 537117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 538117328Sluigi return i; 539117328Sluigi} 540117328Sluigi 54198943Sluigi/** 54298943Sluigi * match_token takes a table and a string, returns the value associated 543117328Sluigi * with the string (-1 in case of failure). 54498943Sluigi */ 54598943Sluigistatic int 54698943Sluigimatch_token(struct _s_x *table, char *string) 54798943Sluigi{ 54898943Sluigi struct _s_x *pt; 549117469Sluigi uint i = strlen(string); 55098943Sluigi 55198943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 55298943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 55398943Sluigi return pt->x; 55498943Sluigi return -1; 555129389Sstefanf} 55698943Sluigi 557117328Sluigi/** 558117328Sluigi * match_value takes a table and a value, returns the string associated 559117328Sluigi * with the value (NULL in case of failure). 560117328Sluigi */ 561117469Sluigistatic char const * 562117469Sluigimatch_value(struct _s_x *p, int value) 56398943Sluigi{ 56498943Sluigi for (; p->s != NULL; p++) 56598943Sluigi if (p->x == value) 56698943Sluigi return p->s; 56798943Sluigi return NULL; 56898943Sluigi} 56998943Sluigi 57098943Sluigi/* 571140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 572140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 573140271Sbrooks * of the second. A warning is printed to stderr in the case that the 574140271Sbrooks * first string is a sub-string of the second. 575140271Sbrooks * 576140271Sbrooks * This function will be removed in the future through the usual 577140271Sbrooks * deprecation process. 578140271Sbrooks */ 579140271Sbrooksstatic int 580140271Sbrooks_substrcmp(const char *str1, const char* str2) 581140271Sbrooks{ 582140271Sbrooks 583140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 584140271Sbrooks return 1; 585140271Sbrooks 586140271Sbrooks if (strlen(str1) != strlen(str2)) 587140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 588140271Sbrooks str1, str2); 589140271Sbrooks return 0; 590140271Sbrooks} 591140271Sbrooks 592140271Sbrooks/* 593140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 594140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 595140271Sbrooks * of the first. A warning is printed to stderr in the case that the 596140271Sbrooks * first string does not match the third. 597140271Sbrooks * 598140271Sbrooks * This function exists to warn about the bizzare construction 599140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 600140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 601140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 602140271Sbrooks * other string beginning with "by". 603140271Sbrooks * 604140271Sbrooks * This function will be removed in the future through the usual 605140271Sbrooks * deprecation process. 606140271Sbrooks */ 607140271Sbrooksstatic int 608140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 609140271Sbrooks{ 610140271Sbrooks 611140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 612140271Sbrooks return 1; 613140271Sbrooks 614140271Sbrooks if (strcmp(str1, str3) != 0) 615140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 616140271Sbrooks str1, str3); 617140271Sbrooks return 0; 618140271Sbrooks} 619140271Sbrooks 620140271Sbrooks/* 62198943Sluigi * prints one port, symbolic or numeric 62298943Sluigi */ 62398943Sluigistatic void 624117328Sluigiprint_port(int proto, uint16_t port) 62598943Sluigi{ 62698943Sluigi 62798943Sluigi if (proto == IPPROTO_ETHERTYPE) { 628117469Sluigi char const *s; 62998943Sluigi 63098943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 63198943Sluigi printf("%s", s); 63298943Sluigi else 63398943Sluigi printf("0x%04x", port); 63498943Sluigi } else { 63598943Sluigi struct servent *se = NULL; 63698943Sluigi if (do_resolv) { 63798943Sluigi struct protoent *pe = getprotobynumber(proto); 63898943Sluigi 63998943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 64098943Sluigi } 64198943Sluigi if (se) 64298943Sluigi printf("%s", se->s_name); 64398943Sluigi else 64498943Sluigi printf("%d", port); 64598943Sluigi } 64698943Sluigi} 64798943Sluigi 648117328Sluigistruct _s_x _port_name[] = { 649117328Sluigi {"dst-port", O_IP_DSTPORT}, 650117328Sluigi {"src-port", O_IP_SRCPORT}, 651117328Sluigi {"ipid", O_IPID}, 652117328Sluigi {"iplen", O_IPLEN}, 653117328Sluigi {"ipttl", O_IPTTL}, 654117328Sluigi {"mac-type", O_MAC_TYPE}, 655136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 656158879Soleg {"tagged", O_TAGGED}, 657117328Sluigi {NULL, 0} 658117328Sluigi}; 659117328Sluigi 66098943Sluigi/* 661117328Sluigi * Print the values in a list 16-bit items of the types above. 66298943Sluigi * XXX todo: add support for mask. 66398943Sluigi */ 66498943Sluigistatic void 665102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 66698943Sluigi{ 667117328Sluigi uint16_t *p = cmd->ports; 66898943Sluigi int i; 669117469Sluigi char const *sep; 67098943Sluigi 671116690Sluigi if (opcode != 0) { 672117328Sluigi sep = match_value(_port_name, opcode); 673117328Sluigi if (sep == NULL) 674116690Sluigi sep = "???"; 675116690Sluigi printf (" %s", sep); 676116690Sluigi } 677116690Sluigi sep = " "; 67898943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 67998943Sluigi printf(sep); 68098943Sluigi print_port(proto, p[0]); 68198943Sluigi if (p[0] != p[1]) { 68298943Sluigi printf("-"); 68398943Sluigi print_port(proto, p[1]); 68498943Sluigi } 68598943Sluigi sep = ","; 68698943Sluigi } 68798943Sluigi} 68898943Sluigi 68998943Sluigi/* 69098943Sluigi * Like strtol, but also translates service names into port numbers 69198943Sluigi * for some protocols. 69298943Sluigi * In particular: 69398943Sluigi * proto == -1 disables the protocol check; 69498943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 69598943Sluigi * proto == <some value in /etc/protocols> matches the values there. 696101628Sluigi * Returns *end == s in case the parameter is not found. 69798943Sluigi */ 69898943Sluigistatic int 69998943Sluigistrtoport(char *s, char **end, int base, int proto) 70098943Sluigi{ 701101628Sluigi char *p, *buf; 702101628Sluigi char *s1; 70398943Sluigi int i; 70498943Sluigi 705101628Sluigi *end = s; /* default - not found */ 706117577Sluigi if (*s == '\0') 707101628Sluigi return 0; /* not found */ 708106505Smaxim 70998943Sluigi if (isdigit(*s)) 71098943Sluigi return strtol(s, end, base); 71198943Sluigi 71298943Sluigi /* 713101628Sluigi * find separator. '\\' escapes the next char. 71498943Sluigi */ 715101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 716101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 717101628Sluigi s1++; 71898943Sluigi 719101628Sluigi buf = malloc(s1 - s + 1); 720101628Sluigi if (buf == NULL) 721101628Sluigi return 0; 722101628Sluigi 723101628Sluigi /* 724101628Sluigi * copy into a buffer skipping backslashes 725101628Sluigi */ 726101628Sluigi for (p = s, i = 0; p != s1 ; p++) 727117577Sluigi if (*p != '\\') 728101628Sluigi buf[i++] = *p; 729101628Sluigi buf[i++] = '\0'; 730101628Sluigi 73198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 732101628Sluigi i = match_token(ether_types, buf); 733101628Sluigi free(buf); 734101628Sluigi if (i != -1) { /* found */ 73598943Sluigi *end = s1; 73698943Sluigi return i; 73798943Sluigi } 73898943Sluigi } else { 73998943Sluigi struct protoent *pe = NULL; 74098943Sluigi struct servent *se; 74198943Sluigi 74298943Sluigi if (proto != 0) 74398943Sluigi pe = getprotobynumber(proto); 74498943Sluigi setservent(1); 745101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 746101628Sluigi free(buf); 74798943Sluigi if (se != NULL) { 74898943Sluigi *end = s1; 74998943Sluigi return ntohs(se->s_port); 75098943Sluigi } 75198943Sluigi } 752101628Sluigi return 0; /* not found */ 75398943Sluigi} 75498943Sluigi 75598943Sluigi/* 756136071Sgreen * Map between current altq queue id numbers and names. 757136071Sgreen */ 758136071Sgreenstatic int altq_fetched = 0; 759136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 760136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 761136071Sgreen 762136071Sgreenstatic void 763136071Sgreenaltq_set_enabled(int enabled) 764136071Sgreen{ 765136071Sgreen int pffd; 766136071Sgreen 767136071Sgreen pffd = open("/dev/pf", O_RDWR); 768136071Sgreen if (pffd == -1) 769136071Sgreen err(EX_UNAVAILABLE, 770136071Sgreen "altq support opening pf(4) control device"); 771136071Sgreen if (enabled) { 772136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 773136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 774136071Sgreen } else { 775136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 776136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 777136071Sgreen } 778136071Sgreen close(pffd); 779136071Sgreen} 780136071Sgreen 781136071Sgreenstatic void 782136071Sgreenaltq_fetch() 783136071Sgreen{ 784136071Sgreen struct pfioc_altq pfioc; 785136071Sgreen struct pf_altq *altq; 786136071Sgreen int pffd, mnr; 787136071Sgreen 788136071Sgreen if (altq_fetched) 789136071Sgreen return; 790136071Sgreen altq_fetched = 1; 791136071Sgreen pffd = open("/dev/pf", O_RDONLY); 792136071Sgreen if (pffd == -1) { 793136071Sgreen warn("altq support opening pf(4) control device"); 794136071Sgreen return; 795136071Sgreen } 796136071Sgreen bzero(&pfioc, sizeof(pfioc)); 797136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 798136071Sgreen warn("altq support getting queue list"); 799136071Sgreen close(pffd); 800136071Sgreen return; 801136071Sgreen } 802136071Sgreen mnr = pfioc.nr; 803136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 804136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 805136071Sgreen if (errno == EBUSY) 806136071Sgreen break; 807136071Sgreen warn("altq support getting queue list"); 808136071Sgreen close(pffd); 809136071Sgreen return; 810136071Sgreen } 811136071Sgreen if (pfioc.altq.qid == 0) 812136071Sgreen continue; 813136071Sgreen altq = malloc(sizeof(*altq)); 814136071Sgreen if (altq == NULL) 815136071Sgreen err(EX_OSERR, "malloc"); 816136071Sgreen *altq = pfioc.altq; 817136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 818136071Sgreen } 819136071Sgreen close(pffd); 820136071Sgreen} 821136071Sgreen 822136071Sgreenstatic u_int32_t 823136071Sgreenaltq_name_to_qid(const char *name) 824136071Sgreen{ 825136071Sgreen struct pf_altq *altq; 826136071Sgreen 827136071Sgreen altq_fetch(); 828136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 829136071Sgreen if (strcmp(name, altq->qname) == 0) 830136071Sgreen break; 831136071Sgreen if (altq == NULL) 832136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 833136071Sgreen return altq->qid; 834136071Sgreen} 835136071Sgreen 836136071Sgreenstatic const char * 837136071Sgreenaltq_qid_to_name(u_int32_t qid) 838136071Sgreen{ 839136071Sgreen struct pf_altq *altq; 840136071Sgreen 841136071Sgreen altq_fetch(); 842136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 843136071Sgreen if (qid == altq->qid) 844136071Sgreen break; 845136071Sgreen if (altq == NULL) 846136071Sgreen return NULL; 847136071Sgreen return altq->qname; 848136071Sgreen} 849136071Sgreen 850136071Sgreenstatic void 851136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 852136071Sgreen{ 853136071Sgreen *qid = altq_name_to_qid(av); 854136071Sgreen} 855136071Sgreen 856136071Sgreen/* 857117328Sluigi * Fill the body of the command with the list of port ranges. 85898943Sluigi */ 85998943Sluigistatic int 86098943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 86198943Sluigi{ 862117328Sluigi uint16_t a, b, *p = cmd->ports; 86398943Sluigi int i = 0; 864102087Sluigi char *s = av; 86598943Sluigi 866102087Sluigi while (*s) { 86798943Sluigi a = strtoport(av, &s, 0, proto); 868159636Soleg if (s == av) /* empty or invalid argument */ 869159636Soleg return (0); 870159636Soleg 871159636Soleg switch (*s) { 872159636Soleg case '-': /* a range */ 873159636Soleg av = s + 1; 87498943Sluigi b = strtoport(av, &s, 0, proto); 875159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 876159636Soleg if (s == av || (*s != ',' && *s != '\0')) 877159636Soleg return (0); 87898943Sluigi p[0] = a; 87998943Sluigi p[1] = b; 880159636Soleg break; 881159636Soleg case ',': /* comma separated list */ 882159636Soleg case '\0': 88398943Sluigi p[0] = p[1] = a; 884159636Soleg break; 885159636Soleg default: 886159636Soleg warnx("port list: invalid separator <%c> in <%s>", 887101978Sluigi *s, av); 888159636Soleg return (0); 889159636Soleg } 890159636Soleg 891102087Sluigi i++; 892102087Sluigi p += 2; 893159636Soleg av = s + 1; 89498943Sluigi } 89598943Sluigi if (i > 0) { 896159636Soleg if (i + 1 > F_LEN_MASK) 897102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 898159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 89998943Sluigi } 900159636Soleg return (i); 90198943Sluigi} 90298943Sluigi 90398943Sluigistatic struct _s_x icmpcodes[] = { 90498943Sluigi { "net", ICMP_UNREACH_NET }, 90598943Sluigi { "host", ICMP_UNREACH_HOST }, 90698943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 90798943Sluigi { "port", ICMP_UNREACH_PORT }, 90898943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 90998943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 91098943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 91198943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 91298943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 91398943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 91498943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 91598943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 91698943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 91798943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 91898943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 91998943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 92098943Sluigi { NULL, 0 } 92198943Sluigi}; 92298943Sluigi 92398943Sluigistatic void 92498943Sluigifill_reject_code(u_short *codep, char *str) 92598943Sluigi{ 92698943Sluigi int val; 92798943Sluigi char *s; 92898943Sluigi 92998943Sluigi val = strtoul(str, &s, 0); 93098943Sluigi if (s == str || *s != '\0' || val >= 0x100) 93198943Sluigi val = match_token(icmpcodes, str); 932102087Sluigi if (val < 0) 93398943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 93498943Sluigi *codep = val; 93598943Sluigi return; 93698943Sluigi} 93798943Sluigi 93898943Sluigistatic void 939117328Sluigiprint_reject_code(uint16_t code) 94098943Sluigi{ 941117469Sluigi char const *s = match_value(icmpcodes, code); 94298943Sluigi 94398943Sluigi if (s != NULL) 94499475Sluigi printf("unreach %s", s); 94598943Sluigi else 94699475Sluigi printf("unreach %u", code); 94798943Sluigi} 94898943Sluigi 949149020Sbzstatic struct _s_x icmp6codes[] = { 950149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 951149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 952149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 953149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 954149020Sbz { NULL, 0 } 955149020Sbz}; 956149020Sbz 957149020Sbzstatic void 958149020Sbzfill_unreach6_code(u_short *codep, char *str) 959149020Sbz{ 960149020Sbz int val; 961149020Sbz char *s; 962149020Sbz 963149020Sbz val = strtoul(str, &s, 0); 964149020Sbz if (s == str || *s != '\0' || val >= 0x100) 965149020Sbz val = match_token(icmp6codes, str); 966149020Sbz if (val < 0) 967149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 968149020Sbz *codep = val; 969149020Sbz return; 970149020Sbz} 971149020Sbz 972149020Sbzstatic void 973149020Sbzprint_unreach6_code(uint16_t code) 974149020Sbz{ 975149020Sbz char const *s = match_value(icmp6codes, code); 976149020Sbz 977149020Sbz if (s != NULL) 978149020Sbz printf("unreach6 %s", s); 979149020Sbz else 980149020Sbz printf("unreach6 %u", code); 981149020Sbz} 982149020Sbz 98398943Sluigi/* 98498943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 98598943Sluigi * or -1 if the mask is not contiguous. 98698943Sluigi * XXX this needs a proper fix. 98798943Sluigi * This effectively works on masks in big-endian (network) format. 98898943Sluigi * when compiled on little endian architectures. 98998943Sluigi * 99098943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 99198943Sluigi * the first bit on the wire is bit 0 of the first byte. 99298943Sluigi * len is the max length in bits. 99398943Sluigi */ 99498943Sluigistatic int 995117577Sluigicontigmask(uint8_t *p, int len) 99698943Sluigi{ 99798943Sluigi int i, n; 998117577Sluigi 99998943Sluigi for (i=0; i<len ; i++) 100098943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 100198943Sluigi break; 100298943Sluigi for (n=i+1; n < len; n++) 100398943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 100498943Sluigi return -1; /* mask not contiguous */ 100598943Sluigi return i; 100698943Sluigi} 100798943Sluigi 100898943Sluigi/* 100998943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 101098943Sluigi * There is a specialized check for f_tcpflags. 101198943Sluigi */ 101298943Sluigistatic void 1013117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 101498943Sluigi{ 1015117469Sluigi char const *comma = ""; 101698943Sluigi int i; 1017117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1018117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 101998943Sluigi 102098943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 102198943Sluigi printf(" setup"); 102298943Sluigi return; 102398943Sluigi } 102498943Sluigi 102598943Sluigi printf(" %s ", name); 102698943Sluigi for (i=0; list[i].x != 0; i++) { 102798943Sluigi if (set & list[i].x) { 102898943Sluigi set &= ~list[i].x; 102998943Sluigi printf("%s%s", comma, list[i].s); 103098943Sluigi comma = ","; 103198943Sluigi } 103298943Sluigi if (clear & list[i].x) { 103398943Sluigi clear &= ~list[i].x; 103498943Sluigi printf("%s!%s", comma, list[i].s); 103598943Sluigi comma = ","; 103698943Sluigi } 103798943Sluigi } 103898943Sluigi} 103998943Sluigi 104098943Sluigi/* 104198943Sluigi * Print the ip address contained in a command. 104298943Sluigi */ 104398943Sluigistatic void 1044117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 104598943Sluigi{ 104698943Sluigi struct hostent *he = NULL; 1047117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1048117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 104998943Sluigi 1050102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 105198943Sluigi 105298943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 105398943Sluigi printf("me"); 105498943Sluigi return; 105598943Sluigi } 1056130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1057130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1058130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1059130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1060130281Sru printf(",%u", *a); 1061130281Sru printf(")"); 1062130281Sru return; 1063130281Sru } 106498943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1065117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1066116716Sluigi int i, j; 106798943Sluigi char comma = '{'; 106898943Sluigi 106998943Sluigi x = cmd->o.arg1 - 1; 107098943Sluigi x = htonl( ~x ); 107198943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107298943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1073117577Sluigi contigmask((uint8_t *)&x, 32)); 107498943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107598943Sluigi x &= 0xff; /* base */ 1076116716Sluigi /* 1077116716Sluigi * Print bits and ranges. 1078116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1079116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1080116716Sluigi * range, otherwise only print the initial bit and rescan. 1081116716Sluigi */ 108298943Sluigi for (i=0; i < cmd->o.arg1; i++) 1083117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1084116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1085117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1086116716Sluigi break; 108798943Sluigi printf("%c%d", comma, i+x); 1088116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1089116716Sluigi printf("-%d", j-1+x); 1090116716Sluigi i = j-1; 1091116716Sluigi } 109298943Sluigi comma = ','; 109398943Sluigi } 109498943Sluigi printf("}"); 109598943Sluigi return; 109698943Sluigi } 1097117328Sluigi /* 1098117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1099117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1100117328Sluigi * use that to count the number of entries. 1101117328Sluigi */ 1102117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1103117328Sluigi int mb = /* mask length */ 1104117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1105117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 110698943Sluigi if (mb == 32 && do_resolv) 1107117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 110898943Sluigi if (he != NULL) /* resolved to name */ 110998943Sluigi printf("%s", he->h_name); 111098943Sluigi else if (mb == 0) /* any */ 111198943Sluigi printf("any"); 111298943Sluigi else { /* numeric IP followed by some kind of mask */ 1113117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 111498943Sluigi if (mb < 0) 1115117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 111698943Sluigi else if (mb < 32) 111798943Sluigi printf("/%d", mb); 111898943Sluigi } 1119117328Sluigi if (len > 1) 1120117328Sluigi printf(","); 1121117328Sluigi } 112298943Sluigi} 112398943Sluigi 112498943Sluigi/* 112598943Sluigi * prints a MAC address/mask pair 112698943Sluigi */ 112798943Sluigistatic void 1128117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 112998943Sluigi{ 113098943Sluigi int l = contigmask(mask, 48); 113198943Sluigi 113298943Sluigi if (l == 0) 113398943Sluigi printf(" any"); 113498943Sluigi else { 113598943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 113698943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 113798943Sluigi if (l == -1) 113898943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 113998943Sluigi mask[0], mask[1], mask[2], 114098943Sluigi mask[3], mask[4], mask[5]); 114198943Sluigi else if (l < 48) 114298943Sluigi printf("/%d", l); 114398943Sluigi } 114498943Sluigi} 114598943Sluigi 114699475Sluigistatic void 114799475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 114899475Sluigi{ 1149117328Sluigi uint8_t type; 115098943Sluigi 115199475Sluigi cmd->d[0] = 0; 115299475Sluigi while (*av) { 115399475Sluigi if (*av == ',') 115499475Sluigi av++; 115599475Sluigi 115699475Sluigi type = strtoul(av, &av, 0); 115799475Sluigi 115899475Sluigi if (*av != ',' && *av != '\0') 115999475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 116099475Sluigi 116199475Sluigi if (type > 31) 116299475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 116399475Sluigi 116499475Sluigi cmd->d[0] |= 1 << type; 116599475Sluigi } 116699475Sluigi cmd->o.opcode = O_ICMPTYPE; 116799475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 116899475Sluigi} 116999475Sluigi 117099475Sluigistatic void 117199475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 117299475Sluigi{ 117399475Sluigi int i; 117499475Sluigi char sep= ' '; 117599475Sluigi 117699475Sluigi printf(" icmptypes"); 117799475Sluigi for (i = 0; i < 32; i++) { 117899475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 117999475Sluigi continue; 118099475Sluigi printf("%c%d", sep, i); 118199475Sluigi sep = ','; 118299475Sluigi } 118399475Sluigi} 118499475Sluigi 1185145246Sbrooks/* 1186145246Sbrooks * Print the ip address contained in a command. 1187145246Sbrooks */ 1188145246Sbrooksstatic void 1189145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1190145246Sbrooks{ 1191145246Sbrooks struct hostent *he = NULL; 1192145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1193145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1194145246Sbrooks char trad[255]; 1195145246Sbrooks 1196145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1197145246Sbrooks 1198145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1199145246Sbrooks printf("me6"); 1200145246Sbrooks return; 1201145246Sbrooks } 1202145246Sbrooks if (cmd->o.opcode == O_IP6) { 1203152923Sume printf(" ip6"); 1204145246Sbrooks return; 1205145246Sbrooks } 1206145246Sbrooks 1207145246Sbrooks /* 1208145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1209145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1210145246Sbrooks * use that to count the number of entries. 1211145246Sbrooks */ 1212145246Sbrooks 1213145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1214145246Sbrooks int mb = /* mask length */ 1215145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1216145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1217145246Sbrooks 1218145246Sbrooks if (mb == 128 && do_resolv) 1219145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1220145246Sbrooks if (he != NULL) /* resolved to name */ 1221145246Sbrooks printf("%s", he->h_name); 1222145246Sbrooks else if (mb == 0) /* any */ 1223145246Sbrooks printf("any"); 1224145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1225145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1226145246Sbrooks printf("Error ntop in print_ip6\n"); 1227145246Sbrooks printf("%s", trad ); 1228145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1229145246Sbrooks printf(":%s", 1230145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1231145246Sbrooks else if (mb < 128) 1232145246Sbrooks printf("/%d", mb); 1233145246Sbrooks } 1234145246Sbrooks if (len > 2) 1235145246Sbrooks printf(","); 1236145246Sbrooks } 1237145246Sbrooks} 1238145246Sbrooks 1239145246Sbrooksstatic void 1240145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1241145246Sbrooks{ 1242145246Sbrooks uint8_t type; 1243145246Sbrooks 1244162344Sjhay bzero(cmd, sizeof(*cmd)); 1245145246Sbrooks while (*av) { 1246145246Sbrooks if (*av == ',') 1247145246Sbrooks av++; 1248145246Sbrooks type = strtoul(av, &av, 0); 1249145246Sbrooks if (*av != ',' && *av != '\0') 1250145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1251145246Sbrooks /* 1252145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1253145246Sbrooks * we shouldn't be able to filter all possiable values 1254145246Sbrooks * regardless of the ability of the rest of the kernel to do 1255145246Sbrooks * anything useful with them. 1256145246Sbrooks */ 1257145246Sbrooks if (type > ICMP6_MAXTYPE) 1258145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1259145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1260145246Sbrooks } 1261145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1262145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1263145246Sbrooks} 1264145246Sbrooks 1265145246Sbrooks 1266145246Sbrooksstatic void 1267145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1268145246Sbrooks{ 1269145246Sbrooks int i, j; 1270145246Sbrooks char sep= ' '; 1271145246Sbrooks 1272152923Sume printf(" ip6 icmp6types"); 1273145246Sbrooks for (i = 0; i < 7; i++) 1274145246Sbrooks for (j=0; j < 32; ++j) { 1275145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1276145246Sbrooks continue; 1277145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1278145246Sbrooks sep = ','; 1279145246Sbrooks } 1280145246Sbrooks} 1281145246Sbrooks 1282145246Sbrooksstatic void 1283145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1284145246Sbrooks{ 1285145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1286145246Sbrooks char sep = ','; 1287145246Sbrooks 1288145246Sbrooks printf(" flow-id "); 1289145246Sbrooks for( i=0; i < limit; ++i) { 1290145246Sbrooks if (i == limit - 1) 1291145246Sbrooks sep = ' '; 1292145246Sbrooks printf("%d%c", cmd->d[i], sep); 1293145246Sbrooks } 1294145246Sbrooks} 1295145246Sbrooks 1296145246Sbrooks/* structure and define for the extension header in ipv6 */ 1297145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1298145246Sbrooks { "frag", EXT_FRAGMENT }, 1299145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1300145246Sbrooks { "route", EXT_ROUTING }, 1301149020Sbz { "dstopt", EXT_DSTOPTS }, 1302145246Sbrooks { "ah", EXT_AH }, 1303145246Sbrooks { "esp", EXT_ESP }, 1304169245Sbz { "rthdr0", EXT_RTHDR0 }, 1305169245Sbz { "rthdr2", EXT_RTHDR2 }, 1306145246Sbrooks { NULL, 0 } 1307145246Sbrooks}; 1308145246Sbrooks 1309145246Sbrooks/* fills command for the extension header filtering */ 1310145246Sbrooksint 1311145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1312145246Sbrooks{ 1313145246Sbrooks int tok; 1314145246Sbrooks char *s = av; 1315145246Sbrooks 1316145246Sbrooks cmd->arg1 = 0; 1317145246Sbrooks 1318145246Sbrooks while(s) { 1319145246Sbrooks av = strsep( &s, ",") ; 1320145246Sbrooks tok = match_token(ext6hdrcodes, av); 1321145246Sbrooks switch (tok) { 1322145246Sbrooks case EXT_FRAGMENT: 1323145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1324145246Sbrooks break; 1325145246Sbrooks 1326145246Sbrooks case EXT_HOPOPTS: 1327145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1328145246Sbrooks break; 1329145246Sbrooks 1330145246Sbrooks case EXT_ROUTING: 1331145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1332145246Sbrooks break; 1333145246Sbrooks 1334149020Sbz case EXT_DSTOPTS: 1335149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1336149020Sbz break; 1337149020Sbz 1338145246Sbrooks case EXT_AH: 1339145246Sbrooks cmd->arg1 |= EXT_AH; 1340145246Sbrooks break; 1341145246Sbrooks 1342145246Sbrooks case EXT_ESP: 1343145246Sbrooks cmd->arg1 |= EXT_ESP; 1344145246Sbrooks break; 1345145246Sbrooks 1346169245Sbz case EXT_RTHDR0: 1347169245Sbz cmd->arg1 |= EXT_RTHDR0; 1348169245Sbz break; 1349169245Sbz 1350169245Sbz case EXT_RTHDR2: 1351169245Sbz cmd->arg1 |= EXT_RTHDR2; 1352169245Sbz break; 1353169245Sbz 1354145246Sbrooks default: 1355145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1356145246Sbrooks break; 1357145246Sbrooks } 1358145246Sbrooks } 1359145246Sbrooks if (cmd->arg1 == 0 ) 1360145246Sbrooks return 0; 1361145246Sbrooks cmd->opcode = O_EXT_HDR; 1362145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1363145246Sbrooks return 1; 1364145246Sbrooks} 1365145246Sbrooks 1366145246Sbrooksvoid 1367145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1368145246Sbrooks{ 1369145246Sbrooks char sep = ' '; 1370145246Sbrooks 1371145246Sbrooks printf(" extension header:"); 1372145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1373145246Sbrooks printf("%cfragmentation", sep); 1374145246Sbrooks sep = ','; 1375145246Sbrooks } 1376145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1377145246Sbrooks printf("%chop options", sep); 1378145246Sbrooks sep = ','; 1379145246Sbrooks } 1380145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1381145246Sbrooks printf("%crouting options", sep); 1382145246Sbrooks sep = ','; 1383145246Sbrooks } 1384169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1385169245Sbz printf("%crthdr0", sep); 1386169245Sbz sep = ','; 1387169245Sbz } 1388169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1389169245Sbz printf("%crthdr2", sep); 1390169245Sbz sep = ','; 1391169245Sbz } 1392149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1393149020Sbz printf("%cdestination options", sep); 1394149020Sbz sep = ','; 1395149020Sbz } 1396145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1397145246Sbrooks printf("%cauthentication header", sep); 1398145246Sbrooks sep = ','; 1399145246Sbrooks } 1400145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1401145246Sbrooks printf("%cencapsulated security payload", sep); 1402145246Sbrooks } 1403145246Sbrooks} 1404145246Sbrooks 140598943Sluigi/* 140698943Sluigi * show_ipfw() prints the body of an ipfw rule. 140798943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 140898943Sluigi * a helper function to produce these entries if not provided explicitly. 1409102087Sluigi * The first argument is the list of fields we have, the second is 1410102087Sluigi * the list of fields we want to be printed. 1411101978Sluigi * 1412102087Sluigi * Special cases if we have provided a MAC header: 1413102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1414102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1415102087Sluigi * 1416102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 141798943Sluigi */ 1418101978Sluigi#define HAVE_PROTO 0x0001 1419101978Sluigi#define HAVE_SRCIP 0x0002 1420101978Sluigi#define HAVE_DSTIP 0x0004 1421169139Smaxim#define HAVE_PROTO4 0x0008 1422169139Smaxim#define HAVE_PROTO6 0x0010 1423102087Sluigi#define HAVE_OPTIONS 0x8000 142498943Sluigi 1425101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 142698943Sluigistatic void 1427102087Sluigishow_prerequisites(int *flags, int want, int cmd) 142898943Sluigi{ 1429123495Sluigi if (comment_only) 1430123495Sluigi return; 1431102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1432102087Sluigi *flags |= HAVE_OPTIONS; 1433102087Sluigi 1434102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1435102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1436146894Smlaier if ( (*flags & HAVE_PROTO4)) 1437146894Smlaier printf(" ip4"); 1438146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1439146894Smlaier printf(" ip6"); 1440146894Smlaier else 1441146894Smlaier printf(" ip"); 1442146894Smlaier 1443102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1444102087Sluigi printf(" from any"); 1445102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1446102087Sluigi printf(" to any"); 1447102087Sluigi } 144898943Sluigi *flags |= want; 144998943Sluigi} 145098943Sluigi 145198943Sluigistatic void 1452112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 145398943Sluigi{ 1454107291Skeramida static int twidth = 0; 145598943Sluigi int l; 1456158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1457117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 145898943Sluigi int proto = 0; /* default */ 145998943Sluigi int flags = 0; /* prerequisites */ 146098943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1461136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 146298943Sluigi int or_block = 0; /* we are in an or block */ 1463117328Sluigi uint32_t set_disable; 146498943Sluigi 1465115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1466101628Sluigi 1467101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1468101628Sluigi if (!show_sets) 1469101628Sluigi return; 1470101628Sluigi else 1471101628Sluigi printf("# DISABLED "); 1472101628Sluigi } 147398943Sluigi printf("%05u ", rule->rulenum); 147498943Sluigi 1475117469Sluigi if (pcwidth>0 || bcwidth>0) 1476115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1477115793Sticso bcwidth, align_uint64(&rule->bcnt)); 147898943Sluigi 1479117472Sluigi if (do_time == 2) 1480117472Sluigi printf("%10u ", rule->timestamp); 1481117472Sluigi else if (do_time == 1) { 1482107291Skeramida char timestr[30]; 1483107291Skeramida time_t t = (time_t)0; 1484107291Skeramida 1485107291Skeramida if (twidth == 0) { 1486107291Skeramida strcpy(timestr, ctime(&t)); 1487107291Skeramida *strchr(timestr, '\n') = '\0'; 1488107291Skeramida twidth = strlen(timestr); 1489107291Skeramida } 149098943Sluigi if (rule->timestamp) { 1491107291Skeramida t = _long_to_time(rule->timestamp); 149298943Sluigi 149398943Sluigi strcpy(timestr, ctime(&t)); 149498943Sluigi *strchr(timestr, '\n') = '\0'; 149598943Sluigi printf("%s ", timestr); 149698943Sluigi } else { 1497107291Skeramida printf("%*s", twidth, " "); 149898943Sluigi } 149998943Sluigi } 150098943Sluigi 1501101628Sluigi if (show_sets) 1502101628Sluigi printf("set %d ", rule->set); 1503101628Sluigi 150498943Sluigi /* 1505107289Sluigi * print the optional "match probability" 1506107289Sluigi */ 1507107289Sluigi if (rule->cmd_len > 0) { 1508107289Sluigi cmd = rule->cmd ; 1509107289Sluigi if (cmd->opcode == O_PROB) { 1510107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1511107289Sluigi double d = 1.0 * p->d[0]; 1512107289Sluigi 1513107289Sluigi d = (d / 0x7fffffff); 1514107289Sluigi printf("prob %f ", d); 1515107289Sluigi } 1516107289Sluigi } 1517107289Sluigi 1518107289Sluigi /* 151998943Sluigi * first print actions 152098943Sluigi */ 152198943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 152298943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 152398943Sluigi switch(cmd->opcode) { 152498943Sluigi case O_CHECK_STATE: 152598943Sluigi printf("check-state"); 1526102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 152798943Sluigi break; 152898943Sluigi 152998943Sluigi case O_ACCEPT: 153098943Sluigi printf("allow"); 153198943Sluigi break; 153298943Sluigi 153398943Sluigi case O_COUNT: 153498943Sluigi printf("count"); 153598943Sluigi break; 153698943Sluigi 153798943Sluigi case O_DENY: 153898943Sluigi printf("deny"); 153998943Sluigi break; 154098943Sluigi 154199475Sluigi case O_REJECT: 154299475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 154399475Sluigi printf("reset"); 154499475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 154599475Sluigi printf("reject"); 154699475Sluigi else 154799475Sluigi print_reject_code(cmd->arg1); 154899475Sluigi break; 154999475Sluigi 1550149020Sbz case O_UNREACH6: 1551149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1552149020Sbz printf("reset6"); 1553149020Sbz else 1554149020Sbz print_unreach6_code(cmd->arg1); 1555149020Sbz break; 1556149020Sbz 1557159636Soleg case O_SKIPTO: 1558159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 155998943Sluigi break; 156098943Sluigi 156198943Sluigi case O_PIPE: 1562159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1563159636Soleg break; 1564159636Soleg 156598943Sluigi case O_QUEUE: 1566159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1567159636Soleg break; 1568159636Soleg 156998943Sluigi case O_DIVERT: 1570159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1571159636Soleg break; 1572159636Soleg 157398943Sluigi case O_TEE: 1574159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1575159636Soleg break; 1576159636Soleg 1577141351Sglebius case O_NETGRAPH: 1578159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1579159636Soleg break; 1580159636Soleg 1581141351Sglebius case O_NGTEE: 1582159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1583159636Soleg break; 1584141351Sglebius 158598943Sluigi case O_FORWARD_IP: 158698943Sluigi { 158798943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 158898943Sluigi 1589161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1590161424Sjulian printf("fwd tablearg"); 1591161424Sjulian } else { 1592161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1593161424Sjulian } 159498943Sluigi if (s->sa.sin_port) 1595103241Sluigi printf(",%d", s->sa.sin_port); 159698943Sluigi } 159798943Sluigi break; 159898943Sluigi 159998943Sluigi case O_LOG: /* O_LOG is printed last */ 160098943Sluigi logptr = (ipfw_insn_log *)cmd; 160198943Sluigi break; 160298943Sluigi 1603136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1604136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1605136071Sgreen break; 1606136071Sgreen 1607158879Soleg case O_TAG: 1608158879Soleg tagptr = cmd; 1609158879Soleg break; 1610158879Soleg 1611165648Spiso case O_NAT: 1612165648Spiso printf("nat %u", cmd->arg1); 1613165648Spiso break; 1614165648Spiso 161598943Sluigi default: 1616136071Sgreen printf("** unrecognized action %d len %d ", 161798943Sluigi cmd->opcode, cmd->len); 161898943Sluigi } 161998943Sluigi } 162098943Sluigi if (logptr) { 162198943Sluigi if (logptr->max_log > 0) 162299909Sluigi printf(" log logamount %d", logptr->max_log); 162398943Sluigi else 162499909Sluigi printf(" log"); 162598943Sluigi } 1626136071Sgreen if (altqptr) { 1627136071Sgreen const char *qname; 1628102087Sluigi 1629136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1630136071Sgreen if (qname == NULL) 1631136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1632136071Sgreen else 1633136071Sgreen printf(" altq %s", qname); 1634136071Sgreen } 1635158879Soleg if (tagptr) { 1636158879Soleg if (tagptr->len & F_NOT) 1637159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1638158879Soleg else 1639159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1640158879Soleg } 1641136071Sgreen 164298943Sluigi /* 1643102087Sluigi * then print the body. 164498943Sluigi */ 1645146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1646146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1647146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1648146894Smlaier continue; 1649146894Smlaier if (cmd->opcode == O_IP4) { 1650146894Smlaier flags |= HAVE_PROTO4; 1651146894Smlaier break; 1652146894Smlaier } else if (cmd->opcode == O_IP6) { 1653146894Smlaier flags |= HAVE_PROTO6; 1654146894Smlaier break; 1655146894Smlaier } 1656146894Smlaier } 1657102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1658146894Smlaier if (!do_compact) { 1659146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1660146894Smlaier printf(" from any to any"); 1661146894Smlaier } 1662102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1663102087Sluigi } 1664102087Sluigi 1665123495Sluigi if (comment_only) 1666123495Sluigi comment = "..."; 1667123495Sluigi 166898943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 166998943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 167099475Sluigi /* useful alias */ 167199475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 167298943Sluigi 1673123495Sluigi if (comment_only) { 1674123495Sluigi if (cmd->opcode != O_NOP) 1675123495Sluigi continue; 1676123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1677123495Sluigi return; 1678123495Sluigi } 1679123495Sluigi 1680102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1681102087Sluigi 168298943Sluigi switch(cmd->opcode) { 1683117577Sluigi case O_PROB: 1684107289Sluigi break; /* done already */ 1685107289Sluigi 168698943Sluigi case O_PROBE_STATE: 168798943Sluigi break; /* no need to print anything here */ 168898943Sluigi 168998943Sluigi case O_IP_SRC: 1690130281Sru case O_IP_SRC_LOOKUP: 169198943Sluigi case O_IP_SRC_MASK: 169298943Sluigi case O_IP_SRC_ME: 169398943Sluigi case O_IP_SRC_SET: 1694102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 169598943Sluigi if (!(flags & HAVE_SRCIP)) 169698943Sluigi printf(" from"); 169798943Sluigi if ((cmd->len & F_OR) && !or_block) 169898943Sluigi printf(" {"); 1699102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1700102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 170198943Sluigi flags |= HAVE_SRCIP; 170298943Sluigi break; 170398943Sluigi 170498943Sluigi case O_IP_DST: 1705130281Sru case O_IP_DST_LOOKUP: 170698943Sluigi case O_IP_DST_MASK: 170798943Sluigi case O_IP_DST_ME: 170898943Sluigi case O_IP_DST_SET: 1709102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 171098943Sluigi if (!(flags & HAVE_DSTIP)) 171198943Sluigi printf(" to"); 171298943Sluigi if ((cmd->len & F_OR) && !or_block) 171398943Sluigi printf(" {"); 1714102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1715102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 171698943Sluigi flags |= HAVE_DSTIP; 171798943Sluigi break; 171898943Sluigi 1719145246Sbrooks case O_IP6_SRC: 1720145246Sbrooks case O_IP6_SRC_MASK: 1721145246Sbrooks case O_IP6_SRC_ME: 1722147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1723145246Sbrooks if (!(flags & HAVE_SRCIP)) 1724145246Sbrooks printf(" from"); 1725145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1726145246Sbrooks printf(" {"); 1727145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1728145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1729145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1730145246Sbrooks break; 1731145246Sbrooks 1732145246Sbrooks case O_IP6_DST: 1733145246Sbrooks case O_IP6_DST_MASK: 1734145246Sbrooks case O_IP6_DST_ME: 1735145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1736145246Sbrooks if (!(flags & HAVE_DSTIP)) 1737145246Sbrooks printf(" to"); 1738145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1739145246Sbrooks printf(" {"); 1740145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1741145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1742145246Sbrooks flags |= HAVE_DSTIP; 1743145246Sbrooks break; 1744145246Sbrooks 1745145246Sbrooks case O_FLOW6ID: 1746145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1747145246Sbrooks flags |= HAVE_OPTIONS; 1748145246Sbrooks break; 1749145246Sbrooks 175098943Sluigi case O_IP_DSTPORT: 1751102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 175298943Sluigi case O_IP_SRCPORT: 1753102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1754101641Sluigi if ((cmd->len & F_OR) && !or_block) 1755101641Sluigi printf(" {"); 1756172306Smaxim if (cmd->len & F_NOT) 1757172306Smaxim printf(" not"); 1758102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1759102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 176098943Sluigi break; 176198943Sluigi 176298943Sluigi case O_PROTO: { 1763145246Sbrooks struct protoent *pe = NULL; 176498943Sluigi 176598943Sluigi if ((cmd->len & F_OR) && !or_block) 176698943Sluigi printf(" {"); 176798943Sluigi if (cmd->len & F_NOT) 176898943Sluigi printf(" not"); 176998943Sluigi proto = cmd->arg1; 1770145567Sbrooks pe = getprotobynumber(cmd->arg1); 1771146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1772146894Smlaier !(flags & HAVE_PROTO)) 1773146894Smlaier show_prerequisites(&flags, 1774146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1775102087Sluigi if (flags & HAVE_OPTIONS) 1776102087Sluigi printf(" proto"); 177798943Sluigi if (pe) 177898943Sluigi printf(" %s", pe->p_name); 177998943Sluigi else 178098943Sluigi printf(" %u", cmd->arg1); 178198943Sluigi } 178298943Sluigi flags |= HAVE_PROTO; 178398943Sluigi break; 1784106505Smaxim 178598943Sluigi default: /*options ... */ 1786146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1787146894Smlaier if (((cmd->opcode == O_IP6) && 1788146894Smlaier (flags & HAVE_PROTO6)) || 1789146894Smlaier ((cmd->opcode == O_IP4) && 1790146894Smlaier (flags & HAVE_PROTO4))) 1791146894Smlaier break; 1792102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 179398943Sluigi if ((cmd->len & F_OR) && !or_block) 179498943Sluigi printf(" {"); 179598943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 179698943Sluigi printf(" not"); 179798943Sluigi switch(cmd->opcode) { 1798169139Smaxim case O_MACADDR2: { 1799169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1800169139Smaxim 1801169139Smaxim printf(" MAC"); 1802169139Smaxim print_mac(m->addr, m->mask); 1803169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1804169139Smaxim } 1805169139Smaxim break; 1806169139Smaxim 1807169139Smaxim case O_MAC_TYPE: 1808169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1809169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1810169139Smaxim break; 1811169139Smaxim 1812169139Smaxim 181398943Sluigi case O_FRAG: 181498943Sluigi printf(" frag"); 181598943Sluigi break; 181698943Sluigi 181798943Sluigi case O_IN: 181898943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 181998943Sluigi break; 182098943Sluigi 1821136073Sgreen case O_DIVERTED: 1822136073Sgreen switch (cmd->arg1) { 1823136073Sgreen case 3: 1824136073Sgreen printf(" diverted"); 1825136073Sgreen break; 1826136073Sgreen case 1: 1827136073Sgreen printf(" diverted-loopback"); 1828136073Sgreen break; 1829136073Sgreen case 2: 1830136073Sgreen printf(" diverted-output"); 1831136073Sgreen break; 1832136073Sgreen default: 1833136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1834136073Sgreen break; 1835136073Sgreen } 1836136073Sgreen break; 1837136073Sgreen 183898943Sluigi case O_LAYER2: 183998943Sluigi printf(" layer2"); 184098943Sluigi break; 184198943Sluigi case O_XMIT: 184298943Sluigi case O_RECV: 1843140423Sglebius case O_VIA: 1844140423Sglebius { 1845117469Sluigi char const *s; 184698943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 184798943Sluigi 184898943Sluigi if (cmd->opcode == O_XMIT) 184998943Sluigi s = "xmit"; 185098943Sluigi else if (cmd->opcode == O_RECV) 185198943Sluigi s = "recv"; 1852117469Sluigi else /* if (cmd->opcode == O_VIA) */ 185398943Sluigi s = "via"; 185498943Sluigi if (cmdif->name[0] == '\0') 185599475Sluigi printf(" %s %s", s, 185699475Sluigi inet_ntoa(cmdif->p.ip)); 1857140423Sglebius else 1858140423Sglebius printf(" %s %s", s, cmdif->name); 1859140423Sglebius 186098943Sluigi break; 1861140423Sglebius } 186298943Sluigi case O_IPID: 1863116690Sluigi if (F_LEN(cmd) == 1) 1864116690Sluigi printf(" ipid %u", cmd->arg1 ); 1865116690Sluigi else 1866116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1867116690Sluigi O_IPID); 186898943Sluigi break; 186998943Sluigi 187098943Sluigi case O_IPTTL: 1871116690Sluigi if (F_LEN(cmd) == 1) 1872116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1873116690Sluigi else 1874116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1875116690Sluigi O_IPTTL); 187698943Sluigi break; 187798943Sluigi 187898943Sluigi case O_IPVER: 187998943Sluigi printf(" ipver %u", cmd->arg1 ); 188098943Sluigi break; 188198943Sluigi 188299475Sluigi case O_IPPRECEDENCE: 188399475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 188499475Sluigi break; 188599475Sluigi 188698943Sluigi case O_IPLEN: 1887116690Sluigi if (F_LEN(cmd) == 1) 1888116690Sluigi printf(" iplen %u", cmd->arg1 ); 1889116690Sluigi else 1890116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1891116690Sluigi O_IPLEN); 189298943Sluigi break; 189398943Sluigi 1894101116Sluigi case O_IPOPT: 189598943Sluigi print_flags("ipoptions", cmd, f_ipopts); 189698943Sluigi break; 189798943Sluigi 189899475Sluigi case O_IPTOS: 189999475Sluigi print_flags("iptos", cmd, f_iptos); 190099475Sluigi break; 190199475Sluigi 190299475Sluigi case O_ICMPTYPE: 190399475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 190499475Sluigi break; 190599475Sluigi 190698943Sluigi case O_ESTAB: 190798943Sluigi printf(" established"); 190898943Sluigi break; 190998943Sluigi 1910136075Sgreen case O_TCPDATALEN: 1911136075Sgreen if (F_LEN(cmd) == 1) 1912136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1913136075Sgreen else 1914136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1915136075Sgreen O_TCPDATALEN); 1916136075Sgreen break; 1917136075Sgreen 191898943Sluigi case O_TCPFLAGS: 191998943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 192098943Sluigi break; 192198943Sluigi 192298943Sluigi case O_TCPOPTS: 192398943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 192498943Sluigi break; 192598943Sluigi 192698943Sluigi case O_TCPWIN: 192798943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 192898943Sluigi break; 192998943Sluigi 193098943Sluigi case O_TCPACK: 193198943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 193298943Sluigi break; 193398943Sluigi 193498943Sluigi case O_TCPSEQ: 193598943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 193698943Sluigi break; 193798943Sluigi 193898943Sluigi case O_UID: 193998943Sluigi { 194098943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 194198943Sluigi 194298943Sluigi if (pwd) 194398943Sluigi printf(" uid %s", pwd->pw_name); 194498943Sluigi else 194598943Sluigi printf(" uid %u", cmd32->d[0]); 194698943Sluigi } 194798943Sluigi break; 194898943Sluigi 194998943Sluigi case O_GID: 195098943Sluigi { 195198943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 195298943Sluigi 195398943Sluigi if (grp) 195498943Sluigi printf(" gid %s", grp->gr_name); 195598943Sluigi else 195698943Sluigi printf(" gid %u", cmd32->d[0]); 195798943Sluigi } 195898943Sluigi break; 195998943Sluigi 1960133600Scsjp case O_JAIL: 1961133600Scsjp printf(" jail %d", cmd32->d[0]); 1962133600Scsjp break; 1963133600Scsjp 1964112250Scjc case O_VERREVPATH: 1965112250Scjc printf(" verrevpath"); 1966112250Scjc break; 1967116919Sluigi 1968128575Sandre case O_VERSRCREACH: 1969128575Sandre printf(" versrcreach"); 1970128575Sandre break; 1971128575Sandre 1972133387Sandre case O_ANTISPOOF: 1973133387Sandre printf(" antispoof"); 1974133387Sandre break; 1975133387Sandre 1976117241Sluigi case O_IPSEC: 1977117241Sluigi printf(" ipsec"); 1978117241Sluigi break; 1979117241Sluigi 1980117469Sluigi case O_NOP: 1981117626Sluigi comment = (char *)(cmd + 1); 1982117469Sluigi break; 1983117469Sluigi 198498943Sluigi case O_KEEP_STATE: 198598943Sluigi printf(" keep-state"); 198698943Sluigi break; 198798943Sluigi 1988159636Soleg case O_LIMIT: { 198998943Sluigi struct _s_x *p = limit_masks; 199098943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1991117328Sluigi uint8_t x = c->limit_mask; 1992117469Sluigi char const *comma = " "; 199398943Sluigi 199498943Sluigi printf(" limit"); 1995117577Sluigi for (; p->x != 0 ; p++) 199699909Sluigi if ((x & p->x) == p->x) { 199798943Sluigi x &= ~p->x; 199898943Sluigi printf("%s%s", comma, p->s); 199998943Sluigi comma = ","; 200098943Sluigi } 2001159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 200298943Sluigi break; 2003159636Soleg } 200498943Sluigi 2005146894Smlaier case O_IP6: 2006152923Sume printf(" ip6"); 2007145246Sbrooks break; 2008145246Sbrooks 2009146894Smlaier case O_IP4: 2010152923Sume printf(" ip4"); 2011146894Smlaier break; 2012146894Smlaier 2013145246Sbrooks case O_ICMP6TYPE: 2014145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2015145246Sbrooks break; 2016145246Sbrooks 2017145246Sbrooks case O_EXT_HDR: 2018145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2019145246Sbrooks break; 2020145246Sbrooks 2021158879Soleg case O_TAGGED: 2022158879Soleg if (F_LEN(cmd) == 1) 2023159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2024158879Soleg else 2025159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2026159636Soleg O_TAGGED); 2027158879Soleg break; 2028158879Soleg 202998943Sluigi default: 203098943Sluigi printf(" [opcode %d len %d]", 203198943Sluigi cmd->opcode, cmd->len); 203298943Sluigi } 203398943Sluigi } 203498943Sluigi if (cmd->len & F_OR) { 203598943Sluigi printf(" or"); 203698943Sluigi or_block = 1; 203798943Sluigi } else if (or_block) { 203898943Sluigi printf(" }"); 203998943Sluigi or_block = 0; 204098943Sluigi } 204198943Sluigi } 2042102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2043117626Sluigi if (comment) 2044117626Sluigi printf(" // %s", comment); 204598943Sluigi printf("\n"); 204698943Sluigi} 204798943Sluigi 204898943Sluigistatic void 2049112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 205098943Sluigi{ 205198943Sluigi struct protoent *pe; 205298943Sluigi struct in_addr a; 2053115793Sticso uint16_t rulenum; 2054159160Smlaier char buf[INET6_ADDRSTRLEN]; 205598943Sluigi 205698943Sluigi if (!do_expired) { 205798943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 205898943Sluigi return; 205998943Sluigi } 2060115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2061117328Sluigi printf("%05d", rulenum); 2062117469Sluigi if (pcwidth>0 || bcwidth>0) 2063117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2064117328Sluigi align_uint64(&d->pcnt), bcwidth, 2065117328Sluigi align_uint64(&d->bcnt), d->expire); 206698943Sluigi switch (d->dyn_type) { 206798943Sluigi case O_LIMIT_PARENT: 206898943Sluigi printf(" PARENT %d", d->count); 206998943Sluigi break; 207098943Sluigi case O_LIMIT: 207198943Sluigi printf(" LIMIT"); 207298943Sluigi break; 207398943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2074106505Smaxim printf(" STATE"); 207598943Sluigi break; 207698943Sluigi } 207798943Sluigi 207898943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 207998943Sluigi printf(" %s", pe->p_name); 208098943Sluigi else 208198943Sluigi printf(" proto %u", d->id.proto); 208298943Sluigi 2083159160Smlaier if (d->id.addr_type == 4) { 2084159160Smlaier a.s_addr = htonl(d->id.src_ip); 2085159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 208698943Sluigi 2087159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2088159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2089159160Smlaier } else if (d->id.addr_type == 6) { 2090159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2091159160Smlaier sizeof(buf)), d->id.src_port); 2092159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2093159160Smlaier sizeof(buf)), d->id.dst_port); 2094159160Smlaier } else 2095159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2096159160Smlaier 209798943Sluigi printf("\n"); 209898943Sluigi} 209998943Sluigi 2100117469Sluigistatic int 210198943Sluigisort_q(const void *pa, const void *pb) 210298943Sluigi{ 210398943Sluigi int rev = (do_sort < 0); 210498943Sluigi int field = rev ? -do_sort : do_sort; 210598943Sluigi long long res = 0; 210698943Sluigi const struct dn_flow_queue *a = pa; 210798943Sluigi const struct dn_flow_queue *b = pb; 210898943Sluigi 210998943Sluigi switch (field) { 211098943Sluigi case 1: /* pkts */ 211198943Sluigi res = a->len - b->len; 211298943Sluigi break; 211398943Sluigi case 2: /* bytes */ 211498943Sluigi res = a->len_bytes - b->len_bytes; 211598943Sluigi break; 211698943Sluigi 211798943Sluigi case 3: /* tot pkts */ 211898943Sluigi res = a->tot_pkts - b->tot_pkts; 211998943Sluigi break; 212098943Sluigi 212198943Sluigi case 4: /* tot bytes */ 212298943Sluigi res = a->tot_bytes - b->tot_bytes; 212398943Sluigi break; 212498943Sluigi } 212598943Sluigi if (res < 0) 212698943Sluigi res = -1; 212798943Sluigi if (res > 0) 212898943Sluigi res = 1; 212998943Sluigi return (int)(rev ? res : -res); 213098943Sluigi} 213198943Sluigi 213298943Sluigistatic void 213398943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 213498943Sluigi{ 213598943Sluigi int l; 2136145246Sbrooks int index_printed, indexes = 0; 2137145246Sbrooks char buff[255]; 2138145246Sbrooks struct protoent *pe; 213998943Sluigi 214098943Sluigi if (fs->rq_elements == 0) 214198943Sluigi return; 214298943Sluigi 214398943Sluigi if (do_sort != 0) 214498943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2145145246Sbrooks 2146145246Sbrooks /* Print IPv4 flows */ 2147145246Sbrooks index_printed = 0; 214898943Sluigi for (l = 0; l < fs->rq_elements; l++) { 214998943Sluigi struct in_addr ina; 215098943Sluigi 2151145246Sbrooks /* XXX: Should check for IPv4 flows */ 2152145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2153145246Sbrooks continue; 2154145246Sbrooks 2155145246Sbrooks if (!index_printed) { 2156145246Sbrooks index_printed = 1; 2157145246Sbrooks if (indexes > 0) /* currently a no-op */ 2158145246Sbrooks printf("\n"); 2159145246Sbrooks indexes++; 2160145246Sbrooks printf(" " 2161145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2162145246Sbrooks fs->flow_mask.proto, 2163145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2164145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2165145246Sbrooks 2166145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2167145246Sbrooks "____Dest. IP/port____ " 2168145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2169145246Sbrooks } 2170145246Sbrooks 217198943Sluigi printf("%3d ", q[l].hash_slot); 217298943Sluigi pe = getprotobynumber(q[l].id.proto); 217398943Sluigi if (pe) 217498943Sluigi printf("%-4s ", pe->p_name); 217598943Sluigi else 217698943Sluigi printf("%4u ", q[l].id.proto); 2177145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 217898943Sluigi printf("%15s/%-5d ", 217998943Sluigi inet_ntoa(ina), q[l].id.src_port); 218098943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 218198943Sluigi printf("%15s/%-5d ", 218298943Sluigi inet_ntoa(ina), q[l].id.dst_port); 218398943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 218498943Sluigi q[l].tot_pkts, q[l].tot_bytes, 218598943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 218698943Sluigi if (verbose) 218798943Sluigi printf(" S %20qd F %20qd\n", 218898943Sluigi q[l].S, q[l].F); 218998943Sluigi } 2190145246Sbrooks 2191145246Sbrooks /* Print IPv6 flows */ 2192145246Sbrooks index_printed = 0; 2193145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2194145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2195145246Sbrooks continue; 2196145246Sbrooks 2197145246Sbrooks if (!index_printed) { 2198145246Sbrooks index_printed = 1; 2199145246Sbrooks if (indexes > 0) 2200145246Sbrooks printf("\n"); 2201145246Sbrooks indexes++; 2202145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2203145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2204145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2205145246Sbrooks buff, sizeof(buff)); 2206145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2207145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2208145246Sbrooks buff, sizeof(buff) ); 2209145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2210145246Sbrooks 2211145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2212145246Sbrooks "______________Source IPv6/port_______________ " 2213145246Sbrooks "_______________Dest. IPv6/port_______________ " 2214145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2215145246Sbrooks } 2216145246Sbrooks printf("%3d ", q[l].hash_slot); 2217145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2218145246Sbrooks if (pe != NULL) 2219145246Sbrooks printf("%9s ", pe->p_name); 2220145246Sbrooks else 2221145246Sbrooks printf("%9u ", q[l].id.proto); 2222145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2223145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2224145246Sbrooks q[l].id.src_port); 2225145246Sbrooks printf(" %39s/%-5d ", 2226145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2227145246Sbrooks q[l].id.dst_port); 2228145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2229145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2230145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2231145246Sbrooks if (verbose) 2232145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2233145246Sbrooks } 223498943Sluigi} 223598943Sluigi 223698943Sluigistatic void 223798943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 223898943Sluigi{ 223998943Sluigi int l; 224098943Sluigi char qs[30]; 224198943Sluigi char plr[30]; 224298943Sluigi char red[90]; /* Display RED parameters */ 224398943Sluigi 224498943Sluigi l = fs->qsize; 224598943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 224698943Sluigi if (l >= 8192) 224798943Sluigi sprintf(qs, "%d KB", l / 1024); 224898943Sluigi else 224998943Sluigi sprintf(qs, "%d B", l); 225098943Sluigi } else 225198943Sluigi sprintf(qs, "%3d sl.", l); 225298943Sluigi if (fs->plr) 225398943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 225498943Sluigi else 225598943Sluigi plr[0] = '\0'; 225698943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 225798943Sluigi sprintf(red, 225898943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 225998943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 226098943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 226198943Sluigi SCALE_VAL(fs->min_th), 226298943Sluigi SCALE_VAL(fs->max_th), 226398943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 226498943Sluigi else 226598943Sluigi sprintf(red, "droptail"); 226698943Sluigi 226798943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 226898943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 226998943Sluigi} 227098943Sluigi 227198943Sluigistatic void 2272117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 227398943Sluigi{ 2274117469Sluigi int rulenum; 227598943Sluigi void *next = data; 227698943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 227798943Sluigi struct dn_flow_set *fs; 227898943Sluigi struct dn_flow_queue *q; 227998943Sluigi int l; 228098943Sluigi 228198943Sluigi if (ac > 0) 228298943Sluigi rulenum = strtoul(*av++, NULL, 10); 228398943Sluigi else 228498943Sluigi rulenum = 0; 228598943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 228698943Sluigi double b = p->bandwidth; 228798943Sluigi char buf[30]; 228898943Sluigi char prefix[80]; 228998943Sluigi 2290161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 229198943Sluigi break; /* done with pipes, now queues */ 229298943Sluigi 229398943Sluigi /* 229498943Sluigi * compute length, as pipe have variable size 229598943Sluigi */ 229698943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2297117469Sluigi next = (char *)p + l; 229898943Sluigi nbytes -= l; 229998943Sluigi 2300134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 230198943Sluigi continue; 230298943Sluigi 230398943Sluigi /* 230498943Sluigi * Print rate (or clocking interface) 230598943Sluigi */ 230698943Sluigi if (p->if_name[0] != '\0') 230798943Sluigi sprintf(buf, "%s", p->if_name); 230898943Sluigi else if (b == 0) 230998943Sluigi sprintf(buf, "unlimited"); 231098943Sluigi else if (b >= 1000000) 231198943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 231298943Sluigi else if (b >= 1000) 231398943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 231498943Sluigi else 231598943Sluigi sprintf(buf, "%7.3f bit/s ", b); 231698943Sluigi 231798943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 231898943Sluigi p->pipe_nr, buf, p->delay); 231998943Sluigi print_flowset_parms(&(p->fs), prefix); 232098943Sluigi if (verbose) 232198943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2322106505Smaxim 232398943Sluigi q = (struct dn_flow_queue *)(p+1); 232498943Sluigi list_queues(&(p->fs), q); 232598943Sluigi } 232698943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 232798943Sluigi char prefix[80]; 232898943Sluigi 2329161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 233098943Sluigi break; 233198943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2332117469Sluigi next = (char *)fs + l; 233398943Sluigi nbytes -= l; 2334134225Spjd 2335134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2336134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2337134225Spjd continue; 2338134225Spjd } 2339134225Spjd 234098943Sluigi q = (struct dn_flow_queue *)(fs+1); 234198943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 234298943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 234398943Sluigi print_flowset_parms(fs, prefix); 234498943Sluigi list_queues(fs, q); 234598943Sluigi } 234698943Sluigi} 234798943Sluigi 2348101978Sluigi/* 2349101978Sluigi * This one handles all set-related commands 2350101978Sluigi * ipfw set { show | enable | disable } 2351101978Sluigi * ipfw set swap X Y 2352101978Sluigi * ipfw set move X to Y 2353101978Sluigi * ipfw set move rule X to Y 2354101978Sluigi */ 235598943Sluigistatic void 2356101978Sluigisets_handler(int ac, char *av[]) 2357101978Sluigi{ 2358117328Sluigi uint32_t set_disable, masks[2]; 2359101978Sluigi int i, nbytes; 2360117328Sluigi uint16_t rulenum; 2361117328Sluigi uint8_t cmd, new_set; 2362101978Sluigi 2363101978Sluigi ac--; 2364101978Sluigi av++; 2365101978Sluigi 2366101978Sluigi if (!ac) 2367101978Sluigi errx(EX_USAGE, "set needs command"); 2368140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2369101978Sluigi void *data; 2370117469Sluigi char const *msg; 2371101978Sluigi 2372101978Sluigi nbytes = sizeof(struct ip_fw); 2373117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2374117328Sluigi err(EX_OSERR, "calloc"); 2375119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2376101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2377115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2378115793Sticso &set_disable, sizeof(set_disable)); 2379101978Sluigi 2380117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2381117577Sluigi if ((set_disable & (1<<i))) { 2382101978Sluigi printf("%s %d", msg, i); 2383101978Sluigi msg = ""; 2384101978Sluigi } 2385101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2386117655Sluigi for (i = 0; i < RESVD_SET; i++) 2387117577Sluigi if (!(set_disable & (1<<i))) { 2388101978Sluigi printf("%s %d", msg, i); 2389101978Sluigi msg = ""; 2390101978Sluigi } 2391101978Sluigi printf("\n"); 2392140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2393101978Sluigi ac--; av++; 2394101978Sluigi if (ac != 2) 2395101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2396101978Sluigi rulenum = atoi(av[0]); 2397101978Sluigi new_set = atoi(av[1]); 2398117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2399101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2400117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2401101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2402101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2403117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2404140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2405101978Sluigi ac--; av++; 2406140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2407101978Sluigi cmd = 2; 2408101978Sluigi ac--; av++; 2409101978Sluigi } else 2410101978Sluigi cmd = 3; 2411140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2412101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2413101978Sluigi rulenum = atoi(av[0]); 2414101978Sluigi new_set = atoi(av[2]); 2415117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2416101978Sluigi (cmd == 2 && rulenum == 65535) ) 2417101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2418117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2419101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2420101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2421117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2422140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2423140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2424140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2425101978Sluigi 2426101978Sluigi ac--; av++; 2427101978Sluigi masks[0] = masks[1] = 0; 2428101978Sluigi 2429101978Sluigi while (ac) { 2430101978Sluigi if (isdigit(**av)) { 2431101978Sluigi i = atoi(*av); 2432117655Sluigi if (i < 0 || i > RESVD_SET) 2433101978Sluigi errx(EX_DATAERR, 2434101978Sluigi "invalid set number %d\n", i); 2435101978Sluigi masks[which] |= (1<<i); 2436140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2437101978Sluigi which = 0; 2438140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2439101978Sluigi which = 1; 2440101978Sluigi else 2441101978Sluigi errx(EX_DATAERR, 2442101978Sluigi "invalid set command %s\n", *av); 2443101978Sluigi av++; ac--; 2444101978Sluigi } 2445101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2446101978Sluigi errx(EX_DATAERR, 2447101978Sluigi "cannot enable and disable the same set\n"); 2448101978Sluigi 2449117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2450101978Sluigi if (i) 2451101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2452101978Sluigi } else 2453101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2454101978Sluigi} 2455101978Sluigi 2456101978Sluigistatic void 2457109126Sdillonsysctl_handler(int ac, char *av[], int which) 2458109126Sdillon{ 2459109126Sdillon ac--; 2460109126Sdillon av++; 2461109126Sdillon 2462119668Smaxim if (ac == 0) { 2463109126Sdillon warnx("missing keyword to enable/disable\n"); 2464140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2465116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2466116770Sluigi &which, sizeof(which)); 2467140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2468116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2469116770Sluigi &which, sizeof(which)); 2470140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2471116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2472116770Sluigi &which, sizeof(which)); 2473140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2474116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2475116770Sluigi &which, sizeof(which)); 2476140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2477116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2478116770Sluigi &which, sizeof(which)); 2479140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2480136071Sgreen altq_set_enabled(which); 2481109126Sdillon } else { 2482109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2483109126Sdillon } 2484109126Sdillon} 2485109126Sdillon 2486109126Sdillonstatic void 2487117469Sluigilist(int ac, char *av[], int show_counters) 248898943Sluigi{ 248998943Sluigi struct ip_fw *r; 249098943Sluigi ipfw_dyn_rule *dynrules, *d; 249198943Sluigi 2492117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2493117469Sluigi char *lim; 2494117469Sluigi void *data = NULL; 2495112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 249698943Sluigi int exitval = EX_OK; 249798943Sluigi int lac; 249898943Sluigi char **lav; 2499117469Sluigi u_long rnum, last; 250098943Sluigi char *endptr; 250198943Sluigi int seen = 0; 2502170923Smaxim uint8_t set; 250398943Sluigi 250498943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 250598943Sluigi int nalloc = 1024; /* start somewhere... */ 250698943Sluigi 2507135036Smaxim last = 0; 2508135036Smaxim 2509117328Sluigi if (test_only) { 2510117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2511117328Sluigi return; 2512117328Sluigi } 2513117328Sluigi 251498943Sluigi ac--; 251598943Sluigi av++; 251698943Sluigi 251798943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 251898943Sluigi nbytes = nalloc; 251998943Sluigi 252098943Sluigi while (nbytes >= nalloc) { 252198943Sluigi nalloc = nalloc * 2 + 200; 252298943Sluigi nbytes = nalloc; 252398943Sluigi if ((data = realloc(data, nbytes)) == NULL) 252498943Sluigi err(EX_OSERR, "realloc"); 2525119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 252698943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 252798943Sluigi do_pipe ? "DUMMYNET" : "FW"); 252898943Sluigi } 252998943Sluigi 253098943Sluigi if (do_pipe) { 253198943Sluigi list_pipes(data, nbytes, ac, av); 253298943Sluigi goto done; 253398943Sluigi } 253498943Sluigi 253598943Sluigi /* 253698943Sluigi * Count static rules. They have variable size so we 253798943Sluigi * need to scan the list to count them. 253898943Sluigi */ 2539117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2540117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2541117469Sluigi ++nstat, r = NEXT(r) ) 254298943Sluigi ; /* nothing */ 254398943Sluigi 254498943Sluigi /* 254598943Sluigi * Count dynamic rules. This is easier as they have 254698943Sluigi * fixed size. 254798943Sluigi */ 2548117469Sluigi r = NEXT(r); 254998943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2550117469Sluigi n = (char *)r - (char *)data; 255198943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 255298943Sluigi 2553112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2554112189Smaxim bcwidth = pcwidth = 0; 2555117469Sluigi if (show_counters) { 2556117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2557170923Smaxim /* skip rules from another set */ 2558170923Smaxim if (use_set && r->set != use_set - 1) 2559170923Smaxim continue; 2560170923Smaxim 2561112189Smaxim /* packet counter */ 2562115793Sticso width = snprintf(NULL, 0, "%llu", 2563115793Sticso align_uint64(&r->pcnt)); 2564112189Smaxim if (width > pcwidth) 2565112189Smaxim pcwidth = width; 2566112189Smaxim 2567112189Smaxim /* byte counter */ 2568115793Sticso width = snprintf(NULL, 0, "%llu", 2569115793Sticso align_uint64(&r->bcnt)); 2570112189Smaxim if (width > bcwidth) 2571112189Smaxim bcwidth = width; 2572112189Smaxim } 2573112189Smaxim } 2574112189Smaxim if (do_dynamic && ndyn) { 2575112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2576170923Smaxim if (use_set) { 2577170923Smaxim /* skip rules from another set */ 2578171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2579170923Smaxim &set, sizeof(uint8_t)); 2580170923Smaxim if (set != use_set - 1) 2581170923Smaxim continue; 2582170923Smaxim } 2583115793Sticso width = snprintf(NULL, 0, "%llu", 2584115793Sticso align_uint64(&d->pcnt)); 2585112189Smaxim if (width > pcwidth) 2586112189Smaxim pcwidth = width; 2587112189Smaxim 2588115793Sticso width = snprintf(NULL, 0, "%llu", 2589115793Sticso align_uint64(&d->bcnt)); 2590112189Smaxim if (width > bcwidth) 2591112189Smaxim bcwidth = width; 2592112189Smaxim } 2593112189Smaxim } 259498943Sluigi /* if no rule numbers were specified, list all rules */ 259598943Sluigi if (ac == 0) { 2596170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2597170923Smaxim if (use_set && r->set != use_set - 1) 2598170923Smaxim continue; 2599112189Smaxim show_ipfw(r, pcwidth, bcwidth); 2600170923Smaxim } 260198943Sluigi 260298943Sluigi if (do_dynamic && ndyn) { 260398943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 2604170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2605170923Smaxim if (use_set) { 2606171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2607170923Smaxim &set, sizeof(uint8_t)); 2608170923Smaxim if (set != use_set - 1) 2609170923Smaxim continue; 2610170923Smaxim } 2611112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 261298943Sluigi } 2613170923Smaxim } 261498943Sluigi goto done; 261598943Sluigi } 261698943Sluigi 261798943Sluigi /* display specific rules requested on command line */ 261898943Sluigi 261998943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 262098943Sluigi /* convert command line rule # */ 2621117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2622117469Sluigi if (*endptr == '-') 2623117469Sluigi last = strtoul(endptr+1, &endptr, 10); 262498943Sluigi if (*endptr) { 262598943Sluigi exitval = EX_USAGE; 262698943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 262798943Sluigi continue; 262898943Sluigi } 2629117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2630117469Sluigi if (r->rulenum > last) 263198943Sluigi break; 2632170923Smaxim if (use_set && r->set != use_set - 1) 2633170923Smaxim continue; 2634117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2635112189Smaxim show_ipfw(r, pcwidth, bcwidth); 263698943Sluigi seen = 1; 263798943Sluigi } 263898943Sluigi } 263998943Sluigi if (!seen) { 264098943Sluigi /* give precedence to other error(s) */ 264198943Sluigi if (exitval == EX_OK) 264298943Sluigi exitval = EX_UNAVAILABLE; 264398943Sluigi warnx("rule %lu does not exist", rnum); 264498943Sluigi } 264598943Sluigi } 264698943Sluigi 264798943Sluigi if (do_dynamic && ndyn) { 264898943Sluigi printf("## Dynamic rules:\n"); 264998943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2650145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2651117469Sluigi if (*endptr == '-') 2652117469Sluigi last = strtoul(endptr+1, &endptr, 10); 265398943Sluigi if (*endptr) 265498943Sluigi /* already warned */ 265598943Sluigi continue; 265698943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2657115793Sticso uint16_t rulenum; 2658115793Sticso 2659115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2660115793Sticso if (rulenum > rnum) 266198943Sluigi break; 2662170923Smaxim if (use_set) { 2663171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2664170923Smaxim &set, sizeof(uint8_t)); 2665170923Smaxim if (set != use_set - 1) 2666170923Smaxim continue; 2667170923Smaxim } 2668117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2669112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 267098943Sluigi } 267198943Sluigi } 267298943Sluigi } 267398943Sluigi 267498943Sluigi ac = 0; 267598943Sluigi 267698943Sluigidone: 267798943Sluigi free(data); 267898943Sluigi 267998943Sluigi if (exitval != EX_OK) 268098943Sluigi exit(exitval); 2681117469Sluigi#undef NEXT 268298943Sluigi} 268398943Sluigi 268498943Sluigistatic void 268598943Sluigishow_usage(void) 268698943Sluigi{ 268798943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 268898943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 268998943Sluigi); 269098943Sluigi exit(EX_USAGE); 269198943Sluigi} 269298943Sluigi 269398943Sluigistatic void 269498943Sluigihelp(void) 269598943Sluigi{ 2696117328Sluigi fprintf(stderr, 2697117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2698123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2699117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2700117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2701117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2702165648Spiso"nat N config {ip IPADDR|if IFNAME|log|deny_in|same_ports|unreg_only|reset|\n" 2703165648Spiso" reverse|proxy_only|redirect_addr linkspec|\n" 2704165648Spiso" redirect_port linkspec|redirect_proto linkspec}\n" 2705117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2706170923Smaxim"set N {show|list|zero|resetlog|delete} [N{,N}] | flush\n" 2707130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 270898943Sluigi"\n" 2709136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2710149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2711149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2712165648Spiso" pipe N | queue N | nat N\n" 2713136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 271498943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2715145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2716145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2717130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2718145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2719145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2720117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2721117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2722136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2723145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2724145246Sbrooks" {dst-port|src-port} LIST |\n" 2725117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2726117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2727117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2728145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2729117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2730117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2731136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 273298943Sluigi); 273398943Sluigiexit(0); 273498943Sluigi} 273598943Sluigi 273698943Sluigi 273798943Sluigistatic int 273898943Sluigilookup_host (char *host, struct in_addr *ipaddr) 273998943Sluigi{ 274098943Sluigi struct hostent *he; 274198943Sluigi 274298943Sluigi if (!inet_aton(host, ipaddr)) { 274398943Sluigi if ((he = gethostbyname(host)) == NULL) 274498943Sluigi return(-1); 274598943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 274698943Sluigi } 274798943Sluigi return(0); 274898943Sluigi} 274998943Sluigi 275098943Sluigi/* 275198943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 275298943Sluigi * Update length as appropriate. 275398943Sluigi * The following formats are allowed: 275498943Sluigi * me returns O_IP_*_ME 275598943Sluigi * 1.2.3.4 single IP address 275698943Sluigi * 1.2.3.4:5.6.7.8 address:mask 275798943Sluigi * 1.2.3.4/24 address/mask 275898943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2759117328Sluigi * We can have multiple comma-separated address/mask entries. 276098943Sluigi */ 276198943Sluigistatic void 276298943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 276398943Sluigi{ 2764117328Sluigi int len = 0; 2765117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 276698943Sluigi 276798943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 276898943Sluigi 2769140271Sbrooks if (_substrcmp(av, "any") == 0) 277098943Sluigi return; 277198943Sluigi 2772140271Sbrooks if (_substrcmp(av, "me") == 0) { 277398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 277498943Sluigi return; 277598943Sluigi } 277698943Sluigi 2777140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2778130281Sru char *p = strchr(av + 6, ','); 2779130281Sru 2780130281Sru if (p) 2781130281Sru *p++ = '\0'; 2782130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2783130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2784130281Sru if (p) { 2785130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2786130281Sru d[0] = strtoul(p, NULL, 0); 2787130281Sru } else 2788130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2789130281Sru return; 2790130281Sru } 2791130281Sru 2792117328Sluigi while (av) { 2793117328Sluigi /* 2794117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2795117328Sluigi * ',' indicating another address follows, '{' indicating a 2796117328Sluigi * set of addresses of unspecified size. 2797117328Sluigi */ 2798165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2799117328Sluigi int masklen; 2800165851Smlaier char md, nd; 2801117328Sluigi 280298943Sluigi if (p) { 280398943Sluigi md = *p; 280498943Sluigi *p++ = '\0'; 2805165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2806165851Smlaier nd = *t; 2807165851Smlaier *t = '\0'; 2808165851Smlaier } 2809117328Sluigi } else 2810117328Sluigi md = '\0'; 281198943Sluigi 2812117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 281398943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 281498943Sluigi switch (md) { 281598943Sluigi case ':': 2816117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 281798943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 281898943Sluigi break; 281998943Sluigi case '/': 2820117328Sluigi masklen = atoi(p); 2821117328Sluigi if (masklen == 0) 2822117328Sluigi d[1] = htonl(0); /* mask */ 2823117328Sluigi else if (masklen > 32) 282498943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 282598943Sluigi else 2826117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 282798943Sluigi break; 2828117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2829117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2830117328Sluigi *(--p) = md; 2831117328Sluigi break; 2832117328Sluigi 2833117328Sluigi case ',': /* single address plus continuation */ 2834117328Sluigi *(--p) = md; 2835117328Sluigi /* FALLTHROUGH */ 2836117328Sluigi case 0: /* initialization value */ 283798943Sluigi default: 2838117328Sluigi d[1] = htonl(~0); /* force /32 */ 283998943Sluigi break; 284098943Sluigi } 2841117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2842165851Smlaier if (t) 2843165851Smlaier *t = nd; 2844117328Sluigi /* find next separator */ 284598943Sluigi if (p) 2846117328Sluigi p = strpbrk(p, ",{"); 2847117328Sluigi if (p && *p == '{') { 2848117328Sluigi /* 2849117328Sluigi * We have a set of addresses. They are stored as follows: 2850117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2851117328Sluigi * addr is the base address IN HOST FORMAT 2852117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2853117328Sluigi * the next multiple of 32) with bits set 2854117328Sluigi * for each host in the map. 2855117328Sluigi */ 2856117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 285798943Sluigi int low, high; 2858117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 285998943Sluigi 2860117328Sluigi if (len > 0) 2861117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2862117328Sluigi if (i < 24 || i > 31) 2863117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2864117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2865117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 286698943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 286798943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2868101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2869117328Sluigi map[i] = 0; /* clear map */ 287098943Sluigi 2871117328Sluigi av = p + 1; 2872117328Sluigi low = d[0] & 0xff; 287398943Sluigi high = low + cmd->o.arg1 - 1; 2874117328Sluigi /* 2875117328Sluigi * Here, i stores the previous value when we specify a range 2876117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2877117328Sluigi * have no previous value. 2878117328Sluigi */ 2879116716Sluigi i = -1; /* previous value in a range */ 288098943Sluigi while (isdigit(*av)) { 288198943Sluigi char *s; 2882117328Sluigi int a = strtol(av, &s, 0); 288398943Sluigi 2884117328Sluigi if (s == av) { /* no parameter */ 2885117328Sluigi if (*av != '}') 2886117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2887117328Sluigi if (i != -1) 2888117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2889117328Sluigi break; 2890117328Sluigi } 2891117328Sluigi if (a < low || a > high) 2892117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 289398943Sluigi a, low, high); 289498943Sluigi a -= low; 2895116716Sluigi if (i == -1) /* no previous in range */ 2896116716Sluigi i = a; 2897116716Sluigi else { /* check that range is valid */ 2898116716Sluigi if (i > a) 2899116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2900116716Sluigi i+low, a+low); 2901116716Sluigi if (*s == '-') 2902116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2903116716Sluigi } 2904116716Sluigi for (; i <= a; i++) 2905117328Sluigi map[i/32] |= 1<<(i & 31); 2906116716Sluigi i = -1; 2907116716Sluigi if (*s == '-') 2908116716Sluigi i = a; 2909117328Sluigi else if (*s == '}') 2910116716Sluigi break; 291198943Sluigi av = s+1; 291298943Sluigi } 291398943Sluigi return; 291498943Sluigi } 2915117328Sluigi av = p; 2916117328Sluigi if (av) /* then *av must be a ',' */ 2917117328Sluigi av++; 291898943Sluigi 2919117328Sluigi /* Check this entry */ 2920117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2921117328Sluigi /* 2922117328Sluigi * 'any' turns the entire list into a NOP. 2923117328Sluigi * 'not any' never matches, so it is removed from the 2924117328Sluigi * list unless it is the only item, in which case we 2925117328Sluigi * report an error. 2926117328Sluigi */ 2927117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2928117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2929117328Sluigi errx(EX_DATAERR, "not any never matches"); 2930117328Sluigi } 2931117328Sluigi /* else do nothing and skip this entry */ 2932128067Smaxim return; 2933117328Sluigi } 2934117328Sluigi /* A single IP can be stored in an optimized format */ 2935117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 293698943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2937117328Sluigi return; 2938117328Sluigi } 2939117328Sluigi len += 2; /* two words... */ 2940117328Sluigi d += 2; 2941117328Sluigi } /* end while */ 2942162363Sjhay if (len + 1 > F_LEN_MASK) 2943162363Sjhay errx(EX_DATAERR, "address list too long"); 2944117328Sluigi cmd->o.len |= len+1; 294598943Sluigi} 294698943Sluigi 294798943Sluigi 2948145246Sbrooks/* Try to find ipv6 address by hostname */ 2949145246Sbrooksstatic int 2950145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2951145246Sbrooks{ 2952145246Sbrooks struct hostent *he; 2953145246Sbrooks 2954145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2955145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2956145246Sbrooks return(-1); 2957145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2958145246Sbrooks } 2959145246Sbrooks return(0); 2960145246Sbrooks} 2961145246Sbrooks 2962145246Sbrooks 2963145246Sbrooks/* n2mask sets n bits of the mask */ 2964145246Sbrooksstatic void 2965145246Sbrooksn2mask(struct in6_addr *mask, int n) 2966145246Sbrooks{ 2967145246Sbrooks static int minimask[9] = 2968145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2969145246Sbrooks u_char *p; 2970145246Sbrooks 2971145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2972145246Sbrooks p = (u_char *) mask; 2973145246Sbrooks for (; n > 0; p++, n -= 8) { 2974145246Sbrooks if (n >= 8) 2975145246Sbrooks *p = 0xff; 2976145246Sbrooks else 2977145246Sbrooks *p = minimask[n]; 2978145246Sbrooks } 2979145246Sbrooks return; 2980145246Sbrooks} 2981145246Sbrooks 2982145246Sbrooks 298398943Sluigi/* 2984145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2985145246Sbrooks * Update length as appropriate. 2986145246Sbrooks * The following formats are allowed: 2987145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2988145246Sbrooks * me returns O_IP6_*_ME 2989145246Sbrooks * 2990145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2991145246Sbrooks * 03f1::234:123:0342/24 address/mask 2992145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2993145246Sbrooks * 2994145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2995145246Sbrooks * are typically random past the initial prefix. 2996145246Sbrooks * Return 1 on success, 0 on failure. 2997145246Sbrooks */ 2998145246Sbrooksstatic int 2999145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 3000145246Sbrooks{ 3001145246Sbrooks int len = 0; 3002145246Sbrooks struct in6_addr *d = &(cmd->addr6); 3003145246Sbrooks /* 3004145246Sbrooks * Needed for multiple address. 3005145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 3006145246Sbrooks */ 3007145246Sbrooks 3008145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 3009145246Sbrooks 3010145246Sbrooks if (strcmp(av, "any") == 0) 3011145246Sbrooks return (1); 3012145246Sbrooks 3013145246Sbrooks 3014145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 3015145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3016145246Sbrooks return (1); 3017145246Sbrooks } 3018145246Sbrooks 3019145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 3020145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3021145246Sbrooks return (1); 3022145246Sbrooks } 3023145246Sbrooks 3024145246Sbrooks av = strdup(av); 3025145246Sbrooks while (av) { 3026145246Sbrooks /* 3027145246Sbrooks * After the address we can have '/' indicating a mask, 3028145246Sbrooks * or ',' indicating another address follows. 3029145246Sbrooks */ 3030145246Sbrooks 3031145246Sbrooks char *p; 3032145246Sbrooks int masklen; 3033145246Sbrooks char md = '\0'; 3034145246Sbrooks 3035145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 3036145246Sbrooks md = *p; /* save the separator */ 3037145246Sbrooks *p = '\0'; /* terminate address string */ 3038145246Sbrooks p++; /* and skip past it */ 3039145246Sbrooks } 3040145246Sbrooks /* now p points to NULL, mask or next entry */ 3041145246Sbrooks 3042145246Sbrooks /* lookup stores address in *d as a side effect */ 3043145246Sbrooks if (lookup_host6(av, d) != 0) { 3044145246Sbrooks /* XXX: failed. Free memory and go */ 3045145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 3046145246Sbrooks } 3047145246Sbrooks /* next, look at the mask, if any */ 3048145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 3049145246Sbrooks if (masklen > 128 || masklen < 0) 3050145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 3051145246Sbrooks else 3052145246Sbrooks n2mask(&d[1], masklen); 3053145246Sbrooks 3054145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 3055145246Sbrooks 3056145246Sbrooks /* find next separator */ 3057145246Sbrooks 3058145246Sbrooks if (md == '/') { /* find separator past the mask */ 3059145246Sbrooks p = strpbrk(p, ","); 3060145246Sbrooks if (p != NULL) 3061145246Sbrooks p++; 3062145246Sbrooks } 3063145246Sbrooks av = p; 3064145246Sbrooks 3065145246Sbrooks /* Check this entry */ 3066145246Sbrooks if (masklen == 0) { 3067145246Sbrooks /* 3068145246Sbrooks * 'any' turns the entire list into a NOP. 3069145246Sbrooks * 'not any' never matches, so it is removed from the 3070145246Sbrooks * list unless it is the only item, in which case we 3071145246Sbrooks * report an error. 3072145246Sbrooks */ 3073145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3074145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3075145246Sbrooks continue; 3076145246Sbrooks } 3077145246Sbrooks 3078145246Sbrooks /* 3079145246Sbrooks * A single IP can be stored alone 3080145246Sbrooks */ 3081145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3082145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3083145246Sbrooks break; 3084145246Sbrooks } 3085145246Sbrooks 3086145246Sbrooks /* Update length and pointer to arguments */ 3087145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3088145246Sbrooks d += 2; 3089145246Sbrooks } /* end while */ 3090145246Sbrooks 3091145246Sbrooks /* 3092145246Sbrooks * Total length of the command, remember that 1 is the size of 3093145246Sbrooks * the base command. 3094145246Sbrooks */ 3095162363Sjhay if (len + 1 > F_LEN_MASK) 3096162363Sjhay errx(EX_DATAERR, "address list too long"); 3097145246Sbrooks cmd->o.len |= len+1; 3098145246Sbrooks free(av); 3099145246Sbrooks return (1); 3100145246Sbrooks} 3101145246Sbrooks 3102145246Sbrooks/* 3103145246Sbrooks * fills command for ipv6 flow-id filtering 3104145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3105145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3106145246Sbrooks * additional flow-id we want to filter, the basic is 1 3107145246Sbrooks */ 3108145246Sbrooksvoid 3109145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3110145246Sbrooks{ 3111145246Sbrooks u_int32_t type; /* Current flow number */ 3112145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3113145246Sbrooks char *s = av; 3114145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3115145246Sbrooks 3116145246Sbrooks while (s) { 3117145246Sbrooks av = strsep( &s, ",") ; 3118145246Sbrooks type = strtoul(av, &av, 0); 3119145246Sbrooks if (*av != ',' && *av != '\0') 3120145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3121145246Sbrooks if (type > 0xfffff) 3122145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3123145246Sbrooks cmd->d[nflow] |= type; 3124145246Sbrooks nflow++; 3125145246Sbrooks } 3126145246Sbrooks if( nflow > 0 ) { 3127145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3128145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3129145246Sbrooks cmd->o.arg1 = nflow; 3130145246Sbrooks } 3131145246Sbrooks else { 3132145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3133145246Sbrooks } 3134145246Sbrooks} 3135145246Sbrooks 3136145246Sbrooksstatic ipfw_insn * 3137145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3138145246Sbrooks{ 3139145246Sbrooks 3140145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3141145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3142145246Sbrooks ; 3143145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3144145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3145145246Sbrooks } else if (F_LEN(cmd) == 3146145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3147145246Sbrooks /* single IP, no mask*/ 3148145246Sbrooks cmd->opcode = O_IP6_SRC; 3149145246Sbrooks } else { /* addr/mask opt */ 3150145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3151145246Sbrooks } 3152145246Sbrooks return cmd; 3153145246Sbrooks} 3154145246Sbrooks 3155145246Sbrooksstatic ipfw_insn * 3156145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3157145246Sbrooks{ 3158145246Sbrooks 3159145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3160145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3161145246Sbrooks ; 3162145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3163145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3164145246Sbrooks } else if (F_LEN(cmd) == 3165145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3166145246Sbrooks /* single IP, no mask*/ 3167145246Sbrooks cmd->opcode = O_IP6_DST; 3168145246Sbrooks } else { /* addr/mask opt */ 3169145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3170145246Sbrooks } 3171145246Sbrooks return cmd; 3172145246Sbrooks} 3173145246Sbrooks 3174145246Sbrooks 3175145246Sbrooks/* 317698943Sluigi * helper function to process a set of flags and set bits in the 317798943Sluigi * appropriate masks. 317898943Sluigi */ 317998943Sluigistatic void 318098943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 318198943Sluigi struct _s_x *flags, char *p) 318298943Sluigi{ 3183117328Sluigi uint8_t set=0, clear=0; 318498943Sluigi 318598943Sluigi while (p && *p) { 318698943Sluigi char *q; /* points to the separator */ 318798943Sluigi int val; 3188117328Sluigi uint8_t *which; /* mask we are working on */ 318998943Sluigi 319098943Sluigi if (*p == '!') { 319198943Sluigi p++; 319298943Sluigi which = &clear; 319398943Sluigi } else 319498943Sluigi which = &set; 319598943Sluigi q = strchr(p, ','); 319698943Sluigi if (q) 319798943Sluigi *q++ = '\0'; 319898943Sluigi val = match_token(flags, p); 319998943Sluigi if (val <= 0) 320098943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3201117328Sluigi *which |= (uint8_t)val; 320298943Sluigi p = q; 320398943Sluigi } 320498943Sluigi cmd->opcode = opcode; 320598943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 320698943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 320798943Sluigi} 320898943Sluigi 320998943Sluigi 321098943Sluigistatic void 321198943Sluigidelete(int ac, char *av[]) 321298943Sluigi{ 3213117328Sluigi uint32_t rulenum; 3214117469Sluigi struct dn_pipe p; 321598943Sluigi int i; 321698943Sluigi int exitval = EX_OK; 3217101628Sluigi int do_set = 0; 321898943Sluigi 3219117469Sluigi memset(&p, 0, sizeof p); 322098943Sluigi 322198943Sluigi av++; ac--; 3222130013Scsjp NEED1("missing rule specification"); 3223140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3224170923Smaxim /* Do not allow using the following syntax: 3225170923Smaxim * ipfw set N delete set M 3226170923Smaxim */ 3227170923Smaxim if (use_set) 3228170923Smaxim errx(EX_DATAERR, "invalid syntax"); 3229101978Sluigi do_set = 1; /* delete set */ 3230101628Sluigi ac--; av++; 3231101978Sluigi } 323298943Sluigi 323398943Sluigi /* Rule number */ 323498943Sluigi while (ac && isdigit(**av)) { 323598943Sluigi i = atoi(*av); av++; ac--; 3236165648Spiso if (do_nat) { 3237165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3238165648Spiso if (exitval) { 3239165648Spiso exitval = EX_UNAVAILABLE; 3240165648Spiso warn("rule %u not available", i); 3241165648Spiso } 3242165648Spiso } else if (do_pipe) { 324398943Sluigi if (do_pipe == 1) 3244117469Sluigi p.pipe_nr = i; 324598943Sluigi else 3246117469Sluigi p.fs.fs_nr = i; 3247117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 324898943Sluigi if (i) { 324998943Sluigi exitval = 1; 325098943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3251117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 325298943Sluigi } 325398943Sluigi } else { 3254170923Smaxim if (use_set) 3255170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 3256170923Smaxim ((use_set - 1) << 16); 3257170923Smaxim else 3258101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3259117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 326098943Sluigi if (i) { 326198943Sluigi exitval = EX_UNAVAILABLE; 326298943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 326398943Sluigi rulenum); 326498943Sluigi } 326598943Sluigi } 326698943Sluigi } 326798943Sluigi if (exitval != EX_OK) 326898943Sluigi exit(exitval); 326998943Sluigi} 327098943Sluigi 327198943Sluigi 327298943Sluigi/* 327398943Sluigi * fill the interface structure. We do not check the name as we can 327498943Sluigi * create interfaces dynamically, so checking them at insert time 327598943Sluigi * makes relatively little sense. 3276121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3277121816Sbrooks * patterns which match interfaces. 327898943Sluigi */ 327998943Sluigistatic void 328098943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 328198943Sluigi{ 328298943Sluigi cmd->name[0] = '\0'; 328398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 328498943Sluigi 328598943Sluigi /* Parse the interface or address */ 3286140271Sbrooks if (strcmp(arg, "any") == 0) 328798943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 328898943Sluigi else if (!isdigit(*arg)) { 3289121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3290121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 329198943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 329298943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 329398943Sluigi} 329498943Sluigi 3295165648Spiso/* 3296165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3297165648Spiso * 3298165648Spiso * n->ip ip address of interface "ifn" 3299165648Spiso * n->if_name copy of interface name "ifn" 3300165648Spiso */ 330198943Sluigistatic void 3302165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3303165648Spiso{ 3304165648Spiso size_t needed; 3305165648Spiso int mib[6]; 3306165648Spiso char *buf, *lim, *next; 3307165648Spiso struct if_msghdr *ifm; 3308165648Spiso struct ifa_msghdr *ifam; 3309165648Spiso struct sockaddr_dl *sdl; 3310165648Spiso struct sockaddr_in *sin; 3311165648Spiso int ifIndex, ifMTU; 3312165648Spiso 3313165648Spiso mib[0] = CTL_NET; 3314165648Spiso mib[1] = PF_ROUTE; 3315165648Spiso mib[2] = 0; 3316165648Spiso mib[3] = AF_INET; 3317165648Spiso mib[4] = NET_RT_IFLIST; 3318165648Spiso mib[5] = 0; 3319165648Spiso/* 3320165648Spiso * Get interface data. 3321165648Spiso */ 3322165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3323165648Spiso err(1, "iflist-sysctl-estimate"); 3324165648Spiso if ((buf = malloc(needed)) == NULL) 3325165648Spiso errx(1, "malloc failed"); 3326165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3327165648Spiso err(1, "iflist-sysctl-get"); 3328165648Spiso lim = buf + needed; 3329165648Spiso/* 3330165648Spiso * Loop through interfaces until one with 3331165648Spiso * given name is found. This is done to 3332165648Spiso * find correct interface index for routing 3333165648Spiso * message processing. 3334165648Spiso */ 3335165648Spiso ifIndex = 0; 3336165648Spiso next = buf; 3337165648Spiso while (next < lim) { 3338165648Spiso ifm = (struct if_msghdr *)next; 3339165648Spiso next += ifm->ifm_msglen; 3340165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3341165648Spiso if (verbose) 3342165648Spiso warnx("routing message version %d " 3343165648Spiso "not understood", ifm->ifm_version); 3344165648Spiso continue; 3345165648Spiso } 3346165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3347165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3348165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3349165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3350165648Spiso ifIndex = ifm->ifm_index; 3351165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3352165648Spiso break; 3353165648Spiso } 3354165648Spiso } 3355165648Spiso } 3356165648Spiso if (!ifIndex) 3357165648Spiso errx(1, "unknown interface name %s", ifn); 3358165648Spiso/* 3359165648Spiso * Get interface address. 3360165648Spiso */ 3361165648Spiso sin = NULL; 3362165648Spiso while (next < lim) { 3363165648Spiso ifam = (struct ifa_msghdr *)next; 3364165648Spiso next += ifam->ifam_msglen; 3365165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3366165648Spiso if (verbose) 3367165648Spiso warnx("routing message version %d " 3368165648Spiso "not understood", ifam->ifam_version); 3369165648Spiso continue; 3370165648Spiso } 3371165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3372165648Spiso break; 3373165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3374165648Spiso int i; 3375165648Spiso char *cp = (char *)(ifam + 1); 3376165648Spiso 3377165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3378165648Spiso if (ifam->ifam_addrs & i) 3379165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3380165648Spiso } 3381165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3382165648Spiso sin = (struct sockaddr_in *)cp; 3383165648Spiso break; 3384165648Spiso } 3385165648Spiso } 3386165648Spiso } 3387165648Spiso if (sin == NULL) 3388165648Spiso errx(1, "%s: cannot get interface address", ifn); 3389165648Spiso 3390165648Spiso n->ip = sin->sin_addr; 3391165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3392165648Spiso 3393165648Spiso free(buf); 3394165648Spiso} 3395165648Spiso 3396165648Spiso/* 3397165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3398165648Spiso * it would be better to move them outside natd.c, in a file 3399165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3400165648Spiso * with it. 3401165648Spiso */ 3402165648Spiso 3403165648Spiso/* 3404165648Spiso * Definition of a port range, and macros to deal with values. 3405165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3406165648Spiso * LO 16-bits == number of ports in range 3407165648Spiso * NOTES: - Port values are not stored in network byte order. 3408165648Spiso */ 3409165648Spiso 3410165648Spiso#define port_range u_long 3411165648Spiso 3412165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3413165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3414165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3415165648Spiso 3416165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3417165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3418165648Spiso 3419165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3420165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3421165648Spiso 3422165648Spisostatic void 3423165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3424165648Spiso{ 3425165648Spiso struct hostent* hp; 3426165648Spiso 3427165648Spiso if (inet_aton (str, addr)) 3428165648Spiso return; 3429165648Spiso 3430165648Spiso hp = gethostbyname (str); 3431165648Spiso if (!hp) 3432165648Spiso errx (1, "unknown host %s", str); 3433165648Spiso 3434165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3435165648Spiso} 3436165648Spiso 3437165648Spisostatic int 3438165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3439165648Spiso{ 3440165648Spiso char* sep; 3441165648Spiso struct servent* sp; 3442165648Spiso char* end; 3443165648Spiso u_short loPort; 3444165648Spiso u_short hiPort; 3445165648Spiso 3446165648Spiso /* First see if this is a service, return corresponding port if so. */ 3447165648Spiso sp = getservbyname (str,proto); 3448165648Spiso if (sp) { 3449165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3450165648Spiso SETNUMPORTS(*portRange, 1); 3451165648Spiso return 0; 3452165648Spiso } 3453165648Spiso 3454165648Spiso /* Not a service, see if it's a single port or port range. */ 3455165648Spiso sep = strchr (str, '-'); 3456165648Spiso if (sep == NULL) { 3457165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3458165648Spiso if (end != str) { 3459165648Spiso /* Single port. */ 3460165648Spiso SETNUMPORTS(*portRange, 1); 3461165648Spiso return 0; 3462165648Spiso } 3463165648Spiso 3464165648Spiso /* Error in port range field. */ 3465165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3466165648Spiso } 3467165648Spiso 3468165648Spiso /* Port range, get the values and sanity check. */ 3469165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3470165648Spiso SETLOPORT(*portRange, loPort); 3471165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3472165648Spiso if (loPort <= hiPort) 3473165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3474165648Spiso 3475165648Spiso if (GETNUMPORTS(*portRange) == 0) 3476165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3477165648Spiso 3478165648Spiso return 0; 3479165648Spiso} 3480165648Spiso 3481165648Spisostatic int 3482165648SpisoStrToProto (const char* str) 3483165648Spiso{ 3484165648Spiso if (!strcmp (str, "tcp")) 3485165648Spiso return IPPROTO_TCP; 3486165648Spiso 3487165648Spiso if (!strcmp (str, "udp")) 3488165648Spiso return IPPROTO_UDP; 3489165648Spiso 3490165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3491165648Spiso} 3492165648Spiso 3493165648Spisostatic int 3494165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3495165648Spiso port_range *portRange) 3496165648Spiso{ 3497165648Spiso char* ptr; 3498165648Spiso 3499165648Spiso ptr = strchr (str, ':'); 3500165648Spiso if (!ptr) 3501165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3502165648Spiso 3503165648Spiso *ptr = '\0'; 3504165648Spiso ++ptr; 3505165648Spiso 3506165648Spiso StrToAddr (str, addr); 3507165648Spiso return StrToPortRange (ptr, proto, portRange); 3508165648Spiso} 3509165648Spiso 3510165648Spiso/* End of stuff taken from natd.c. */ 3511165648Spiso 3512165648Spiso#define INC_ARGCV() do { \ 3513165648Spiso (*_av)++; \ 3514165648Spiso (*_ac)--; \ 3515165648Spiso av = *_av; \ 3516165648Spiso ac = *_ac; \ 3517165648Spiso} while(0) 3518165648Spiso 3519165648Spiso/* 3520165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3521165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3522165648Spiso * and SetupProtoRedirect() from natd.c. 3523165648Spiso * 3524165648Spiso * Every setup_* function fills at least one redirect entry 3525165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3526165648Spiso * in buf. 3527165648Spiso * 3528165648Spiso * The format of data in buf is: 3529165648Spiso * 3530165648Spiso * 3531165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3532165648Spiso * 3533165648Spiso * ------------------------------------- ------------ 3534165648Spiso * | | .....X ... | | | | ..... 3535165648Spiso * ------------------------------------- ...... ------------ 3536165648Spiso * ^ 3537165648Spiso * spool_cnt n=0 ...... n=(X-1) 3538165648Spiso * 3539165648Spiso * len points to the amount of available space in buf 3540165648Spiso * space counts the memory consumed by every function 3541165648Spiso * 3542165648Spiso * XXX - Every function get all the argv params so it 3543165648Spiso * has to check, in optional parameters, that the next 3544165648Spiso * args is a valid option for the redir entry and not 3545165648Spiso * another token. Only redir_port and redir_proto are 3546165648Spiso * affected by this. 3547165648Spiso */ 3548165648Spiso 3549165648Spisostatic int 3550165648Spisosetup_redir_addr(char *spool_buf, int len, 3551165648Spiso int *_ac, char ***_av) 3552165648Spiso{ 3553165648Spiso char **av, *sep; /* Token separator. */ 3554165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3555165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3556165648Spiso int ac, i, space, lsnat; 3557165648Spiso struct cfg_redir *r; 3558165648Spiso struct cfg_spool *tmp; 3559165648Spiso 3560165648Spiso av = *_av; 3561165648Spiso ac = *_ac; 3562165648Spiso space = 0; 3563165648Spiso lsnat = 0; 3564165648Spiso if (len >= SOF_REDIR) { 3565165648Spiso r = (struct cfg_redir *)spool_buf; 3566165648Spiso /* Skip cfg_redir at beginning of buf. */ 3567165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3568165648Spiso space = SOF_REDIR; 3569165648Spiso len -= SOF_REDIR; 3570165648Spiso } else 3571165648Spiso goto nospace; 3572165648Spiso r->mode = REDIR_ADDR; 3573165648Spiso /* Extract local address. */ 3574165648Spiso if (ac == 0) 3575165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3576165648Spiso sep = strchr(*av, ','); 3577165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3578165648Spiso r->laddr.s_addr = INADDR_NONE; 3579165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3580165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3581165648Spiso lsnat = 1; 3582165648Spiso } else 3583165648Spiso StrToAddr(*av, &r->laddr); 3584165648Spiso INC_ARGCV(); 3585165648Spiso 3586165648Spiso /* Extract public address. */ 3587165648Spiso if (ac == 0) 3588165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3589165648Spiso StrToAddr(*av, &r->paddr); 3590165648Spiso INC_ARGCV(); 3591165648Spiso 3592165648Spiso /* Setup LSNAT server pool. */ 3593165648Spiso if (sep) { 3594165648Spiso sep = strtok(tmp_spool_buf, ","); 3595165648Spiso while (sep != NULL) { 3596165648Spiso tmp = (struct cfg_spool *)spool_buf; 3597165648Spiso if (len < SOF_SPOOL) 3598165648Spiso goto nospace; 3599165648Spiso len -= SOF_SPOOL; 3600165648Spiso space += SOF_SPOOL; 3601165648Spiso StrToAddr(sep, &tmp->addr); 3602165648Spiso tmp->port = ~0; 3603165648Spiso r->spool_cnt++; 3604165648Spiso /* Point to the next possible cfg_spool. */ 3605165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3606165648Spiso sep = strtok(NULL, ","); 3607165648Spiso } 3608165648Spiso } 3609165648Spiso return(space); 3610165648Spisonospace: 3611165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3612165648Spiso} 3613165648Spiso 3614165648Spisostatic int 3615165648Spisosetup_redir_port(char *spool_buf, int len, 3616165648Spiso int *_ac, char ***_av) 3617165648Spiso{ 3618165648Spiso char **av, *sep, *protoName; 3619165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3620165648Spiso int ac, space, lsnat; 3621165648Spiso struct cfg_redir *r; 3622165648Spiso struct cfg_spool *tmp; 3623165648Spiso u_short numLocalPorts; 3624165648Spiso port_range portRange; 3625165648Spiso 3626165648Spiso av = *_av; 3627165648Spiso ac = *_ac; 3628165648Spiso space = 0; 3629165648Spiso lsnat = 0; 3630165648Spiso numLocalPorts = 0; 3631165648Spiso 3632165648Spiso if (len >= SOF_REDIR) { 3633165648Spiso r = (struct cfg_redir *)spool_buf; 3634165648Spiso /* Skip cfg_redir at beginning of buf. */ 3635165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3636165648Spiso space = SOF_REDIR; 3637165648Spiso len -= SOF_REDIR; 3638165648Spiso } else 3639165648Spiso goto nospace; 3640165648Spiso r->mode = REDIR_PORT; 3641165648Spiso /* 3642165648Spiso * Extract protocol. 3643165648Spiso */ 3644165648Spiso if (ac == 0) 3645165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3646165648Spiso r->proto = StrToProto(*av); 3647165648Spiso protoName = *av; 3648165648Spiso INC_ARGCV(); 3649165648Spiso 3650165648Spiso /* 3651165648Spiso * Extract local address. 3652165648Spiso */ 3653165648Spiso if (ac == 0) 3654165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3655165648Spiso 3656165648Spiso sep = strchr(*av, ','); 3657165648Spiso /* LSNAT redirection syntax. */ 3658165648Spiso if (sep) { 3659165648Spiso r->laddr.s_addr = INADDR_NONE; 3660165648Spiso r->lport = ~0; 3661165648Spiso numLocalPorts = 1; 3662165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3663165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3664165648Spiso lsnat = 1; 3665165648Spiso } else { 3666165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3667165648Spiso &portRange) != 0) 3668165648Spiso errx(EX_DATAERR, "redirect_port:" 3669165648Spiso "invalid local port range"); 3670165648Spiso 3671165648Spiso r->lport = GETLOPORT(portRange); 3672165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3673165648Spiso } 3674165648Spiso INC_ARGCV(); 3675165648Spiso 3676165648Spiso /* 3677165648Spiso * Extract public port and optionally address. 3678165648Spiso */ 3679165648Spiso if (ac == 0) 3680165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3681165648Spiso 3682165648Spiso sep = strchr (*av, ':'); 3683165648Spiso if (sep) { 3684165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3685165648Spiso &portRange) != 0) 3686165648Spiso errx(EX_DATAERR, "redirect_port:" 3687165648Spiso "invalid public port range"); 3688165648Spiso } else { 3689165648Spiso r->paddr.s_addr = INADDR_ANY; 3690165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3691165648Spiso errx(EX_DATAERR, "redirect_port:" 3692165648Spiso "invalid public port range"); 3693165648Spiso } 3694165648Spiso 3695165648Spiso r->pport = GETLOPORT(portRange); 3696165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3697165648Spiso INC_ARGCV(); 3698165648Spiso 3699165648Spiso /* 3700165648Spiso * Extract remote address and optionally port. 3701165648Spiso */ 3702165648Spiso /* 3703165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3704165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3705165648Spiso */ 3706165648Spiso if (ac != 0 && !isalpha(**av)) { 3707165648Spiso sep = strchr (*av, ':'); 3708165648Spiso if (sep) { 3709165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3710165648Spiso &portRange) != 0) 3711165648Spiso errx(EX_DATAERR, "redirect_port:" 3712165648Spiso "invalid remote port range"); 3713165648Spiso } else { 3714165648Spiso SETLOPORT(portRange, 0); 3715165648Spiso SETNUMPORTS(portRange, 1); 3716165648Spiso StrToAddr (*av, &r->raddr); 3717165648Spiso } 3718165648Spiso INC_ARGCV(); 3719165648Spiso } else { 3720165648Spiso SETLOPORT(portRange, 0); 3721165648Spiso SETNUMPORTS(portRange, 1); 3722165648Spiso r->raddr.s_addr = INADDR_ANY; 3723165648Spiso } 3724165648Spiso r->rport = GETLOPORT(portRange); 3725165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3726165648Spiso 3727165648Spiso /* 3728165648Spiso * Make sure port ranges match up, then add the redirect ports. 3729165648Spiso */ 3730165648Spiso if (numLocalPorts != r->pport_cnt) 3731165648Spiso errx(EX_DATAERR, "redirect_port:" 3732165648Spiso "port ranges must be equal in size"); 3733165648Spiso 3734165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3735165648Spiso if (r->rport_cnt != numLocalPorts && 3736165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3737165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3738165648Spiso "be 0 or equal to local port range in size"); 3739165648Spiso 3740165648Spiso /* 3741165648Spiso * Setup LSNAT server pool. 3742165648Spiso */ 3743165648Spiso if (lsnat) { 3744165648Spiso sep = strtok(tmp_spool_buf, ","); 3745165648Spiso while (sep != NULL) { 3746165648Spiso tmp = (struct cfg_spool *)spool_buf; 3747165648Spiso if (len < SOF_SPOOL) 3748165648Spiso goto nospace; 3749165648Spiso len -= SOF_SPOOL; 3750165648Spiso space += SOF_SPOOL; 3751165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3752165648Spiso &portRange) != 0) 3753165648Spiso errx(EX_DATAERR, "redirect_port:" 3754165648Spiso "invalid local port range"); 3755165648Spiso if (GETNUMPORTS(portRange) != 1) 3756165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3757165648Spiso "must be single in this context"); 3758165648Spiso tmp->port = GETLOPORT(portRange); 3759165648Spiso r->spool_cnt++; 3760165648Spiso /* Point to the next possible cfg_spool. */ 3761165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3762165648Spiso sep = strtok(NULL, ","); 3763165648Spiso } 3764165648Spiso } 3765165648Spiso return (space); 3766165648Spisonospace: 3767165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3768165648Spiso} 3769165648Spiso 3770165648Spisostatic int 3771165648Spisosetup_redir_proto(char *spool_buf, int len, 3772165648Spiso int *_ac, char ***_av) 3773165648Spiso{ 3774165648Spiso char **av; 3775165648Spiso int ac, i, space; 3776165648Spiso struct protoent *protoent; 3777165648Spiso struct cfg_redir *r; 3778165648Spiso 3779165648Spiso av = *_av; 3780165648Spiso ac = *_ac; 3781165648Spiso if (len >= SOF_REDIR) { 3782165648Spiso r = (struct cfg_redir *)spool_buf; 3783165648Spiso /* Skip cfg_redir at beginning of buf. */ 3784165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3785165648Spiso space = SOF_REDIR; 3786165648Spiso len -= SOF_REDIR; 3787165648Spiso } else 3788165648Spiso goto nospace; 3789165648Spiso r->mode = REDIR_PROTO; 3790165648Spiso /* 3791165648Spiso * Extract protocol. 3792165648Spiso */ 3793165648Spiso if (ac == 0) 3794165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3795165648Spiso 3796165648Spiso protoent = getprotobyname(*av); 3797165648Spiso if (protoent == NULL) 3798165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3799165648Spiso else 3800165648Spiso r->proto = protoent->p_proto; 3801165648Spiso 3802165648Spiso INC_ARGCV(); 3803165648Spiso 3804165648Spiso /* 3805165648Spiso * Extract local address. 3806165648Spiso */ 3807165648Spiso if (ac == 0) 3808165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3809165648Spiso else 3810165648Spiso StrToAddr(*av, &r->laddr); 3811165648Spiso 3812165648Spiso INC_ARGCV(); 3813165648Spiso 3814165648Spiso /* 3815165648Spiso * Extract optional public address. 3816165648Spiso */ 3817165648Spiso if (ac == 0) { 3818165648Spiso r->paddr.s_addr = INADDR_ANY; 3819165648Spiso r->raddr.s_addr = INADDR_ANY; 3820165648Spiso } else { 3821165648Spiso /* see above in setup_redir_port() */ 3822165648Spiso if (!isalpha(**av)) { 3823165648Spiso StrToAddr(*av, &r->paddr); 3824165648Spiso INC_ARGCV(); 3825165648Spiso 3826165648Spiso /* 3827165648Spiso * Extract optional remote address. 3828165648Spiso */ 3829165648Spiso /* see above in setup_redir_port() */ 3830165648Spiso if (ac!=0 && !isalpha(**av)) { 3831165648Spiso StrToAddr(*av, &r->raddr); 3832165648Spiso INC_ARGCV(); 3833165648Spiso } 3834165648Spiso } 3835165648Spiso } 3836165648Spiso return (space); 3837165648Spisonospace: 3838165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3839165648Spiso} 3840165648Spiso 3841165648Spisostatic void 3842165648Spisoshow_nat(int ac, char **av); 3843165648Spiso 3844165648Spisostatic void 3845165648Spisoprint_nat_config(char *buf) { 3846165648Spiso struct cfg_nat *n; 3847165648Spiso int i, cnt, flag, off; 3848165648Spiso struct cfg_redir *t; 3849165648Spiso struct cfg_spool *s; 3850165648Spiso struct protoent *p; 3851165648Spiso 3852165648Spiso n = (struct cfg_nat *)buf; 3853165648Spiso flag = 1; 3854165648Spiso off = sizeof(*n); 3855165648Spiso printf("ipfw nat %u config", n->id); 3856165648Spiso if (strlen(n->if_name) != 0) 3857165648Spiso printf(" if %s", n->if_name); 3858165648Spiso else if (n->ip.s_addr != 0) 3859165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3860165648Spiso while (n->mode != 0) { 3861165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3862165648Spiso printf(" log"); 3863165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3864165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3865165648Spiso printf(" deny_in"); 3866165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3867165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3868165648Spiso printf(" same_ports"); 3869165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3870165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3871165648Spiso printf(" unreg_only"); 3872165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3873165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3874165648Spiso printf(" reset"); 3875165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3876165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3877165648Spiso printf(" reverse"); 3878165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3879165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3880165648Spiso printf(" proxy_only"); 3881165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3882165648Spiso } 3883165648Spiso } 3884165648Spiso /* Print all the redirect's data configuration. */ 3885165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3886165648Spiso t = (struct cfg_redir *)&buf[off]; 3887165648Spiso off += SOF_REDIR; 3888165648Spiso switch (t->mode) { 3889165648Spiso case REDIR_ADDR: 3890165648Spiso printf(" redirect_addr"); 3891165648Spiso if (t->spool_cnt == 0) 3892165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3893165648Spiso else 3894165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3895165648Spiso s = (struct cfg_spool *)&buf[off]; 3896165648Spiso if (i) 3897165648Spiso printf(","); 3898165648Spiso else 3899165648Spiso printf(" "); 3900165648Spiso printf("%s", inet_ntoa(s->addr)); 3901165648Spiso off += SOF_SPOOL; 3902165648Spiso } 3903165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3904165648Spiso break; 3905165648Spiso case REDIR_PORT: 3906165648Spiso p = getprotobynumber(t->proto); 3907165648Spiso printf(" redirect_port %s ", p->p_name); 3908165648Spiso if (!t->spool_cnt) { 3909165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3910165648Spiso if (t->pport_cnt > 1) 3911165648Spiso printf("-%u", t->lport + 3912165648Spiso t->pport_cnt - 1); 3913165648Spiso } else 3914165648Spiso for (i=0; i < t->spool_cnt; i++) { 3915165648Spiso s = (struct cfg_spool *)&buf[off]; 3916165648Spiso if (i) 3917165648Spiso printf(","); 3918165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3919165648Spiso s->port); 3920165648Spiso off += SOF_SPOOL; 3921165648Spiso } 3922165648Spiso 3923165648Spiso printf(" "); 3924165648Spiso if (t->paddr.s_addr) 3925165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3926165648Spiso printf("%u", t->pport); 3927165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3928165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3929165648Spiso 3930165648Spiso if (t->raddr.s_addr) { 3931165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3932165648Spiso if (t->rport) { 3933165648Spiso printf(":%u", t->rport); 3934165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3935165648Spiso printf("-%u", t->rport + 3936165648Spiso t->rport_cnt - 1); 3937165648Spiso } 3938165648Spiso } 3939165648Spiso break; 3940165648Spiso case REDIR_PROTO: 3941165648Spiso p = getprotobynumber(t->proto); 3942165648Spiso printf(" redirect_proto %s %s", p->p_name, 3943165648Spiso inet_ntoa(t->laddr)); 3944165648Spiso if (t->paddr.s_addr != 0) { 3945165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3946165648Spiso if (t->raddr.s_addr) 3947165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3948165648Spiso } 3949165648Spiso break; 3950165648Spiso default: 3951165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3952165648Spiso break; 3953165648Spiso } 3954165648Spiso } 3955165648Spiso printf("\n"); 3956165648Spiso} 3957165648Spiso 3958165648Spisostatic void 3959165648Spisoconfig_nat(int ac, char **av) 3960165648Spiso{ 3961165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3962165648Spiso struct in_addr ip; 3963165648Spiso int i, len, off, tok; 3964165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3965165648Spiso 3966165648Spiso len = NAT_BUF_LEN; 3967165648Spiso /* Offset in buf: save space for n at the beginning. */ 3968165648Spiso off = sizeof(*n); 3969165648Spiso memset(buf, 0, sizeof(buf)); 3970165648Spiso n = (struct cfg_nat *)buf; 3971165648Spiso 3972165648Spiso av++; ac--; 3973165648Spiso /* Nat id. */ 3974165648Spiso if (ac && isdigit(**av)) { 3975165648Spiso id = *av; 3976165648Spiso i = atoi(*av); 3977165648Spiso ac--; av++; 3978165648Spiso n->id = i; 3979165648Spiso } else 3980165648Spiso errx(EX_DATAERR, "missing nat id"); 3981165648Spiso if (ac == 0) 3982165648Spiso errx(EX_DATAERR, "missing option"); 3983165648Spiso 3984165648Spiso while (ac > 0) { 3985165648Spiso tok = match_token(nat_params, *av); 3986165648Spiso ac--; av++; 3987165648Spiso switch (tok) { 3988165648Spiso case TOK_IP: 3989165648Spiso if (ac == 0) 3990165648Spiso errx(EX_DATAERR, "missing option"); 3991165648Spiso if (!inet_aton(av[0], &(n->ip))) 3992165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 3993165648Spiso av[0]); 3994165648Spiso ac--; av++; 3995165648Spiso break; 3996165648Spiso case TOK_IF: 3997165648Spiso set_addr_dynamic(av[0], n); 3998165648Spiso ac--; av++; 3999165648Spiso break; 4000165648Spiso case TOK_ALOG: 4001165648Spiso n->mode |= PKT_ALIAS_LOG; 4002165648Spiso break; 4003165648Spiso case TOK_DENY_INC: 4004165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 4005165648Spiso break; 4006165648Spiso case TOK_SAME_PORTS: 4007165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 4008165648Spiso break; 4009165648Spiso case TOK_UNREG_ONLY: 4010165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 4011165648Spiso break; 4012165648Spiso case TOK_RESET_ADDR: 4013165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 4014165648Spiso break; 4015165648Spiso case TOK_ALIAS_REV: 4016165648Spiso n->mode |= PKT_ALIAS_REVERSE; 4017165648Spiso break; 4018165648Spiso case TOK_PROXY_ONLY: 4019165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 4020165648Spiso break; 4021165648Spiso /* 4022165648Spiso * All the setup_redir_* functions work directly in the final 4023165648Spiso * buffer, see above for details. 4024165648Spiso */ 4025165648Spiso case TOK_REDIR_ADDR: 4026165648Spiso case TOK_REDIR_PORT: 4027165648Spiso case TOK_REDIR_PROTO: 4028165648Spiso switch (tok) { 4029165648Spiso case TOK_REDIR_ADDR: 4030165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 4031165648Spiso break; 4032165648Spiso case TOK_REDIR_PORT: 4033165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 4034165648Spiso break; 4035165648Spiso case TOK_REDIR_PROTO: 4036165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 4037165648Spiso break; 4038165648Spiso } 4039165648Spiso n->redir_cnt++; 4040165648Spiso off += i; 4041165648Spiso len -= i; 4042165648Spiso break; 4043165648Spiso default: 4044165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 4045165648Spiso } 4046165648Spiso } 4047165648Spiso 4048165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 4049165648Spiso if (i) 4050165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 4051165648Spiso 4052165648Spiso /* After every modification, we show the resultant rule. */ 4053165648Spiso int _ac = 3; 4054165648Spiso char *_av[] = {"show", "config", id}; 4055165648Spiso show_nat(_ac, _av); 4056165648Spiso} 4057165648Spiso 4058165648Spisostatic void 405998943Sluigiconfig_pipe(int ac, char **av) 406098943Sluigi{ 4061117469Sluigi struct dn_pipe p; 406298943Sluigi int i; 406398943Sluigi char *end; 406498943Sluigi void *par = NULL; 406598943Sluigi 4066117469Sluigi memset(&p, 0, sizeof p); 406798943Sluigi 406898943Sluigi av++; ac--; 406998943Sluigi /* Pipe number */ 407098943Sluigi if (ac && isdigit(**av)) { 407198943Sluigi i = atoi(*av); av++; ac--; 407298943Sluigi if (do_pipe == 1) 4073117469Sluigi p.pipe_nr = i; 407498943Sluigi else 4075117469Sluigi p.fs.fs_nr = i; 407698943Sluigi } 407799475Sluigi while (ac > 0) { 407898943Sluigi double d; 407998943Sluigi int tok = match_token(dummynet_params, *av); 408098943Sluigi ac--; av++; 408198943Sluigi 408298943Sluigi switch(tok) { 4083101978Sluigi case TOK_NOERROR: 4084117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4085101978Sluigi break; 4086101978Sluigi 408798943Sluigi case TOK_PLR: 408898943Sluigi NEED1("plr needs argument 0..1\n"); 408998943Sluigi d = strtod(av[0], NULL); 409098943Sluigi if (d > 1) 409198943Sluigi d = 1; 409298943Sluigi else if (d < 0) 409398943Sluigi d = 0; 4094117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 409598943Sluigi ac--; av++; 409698943Sluigi break; 409798943Sluigi 409898943Sluigi case TOK_QUEUE: 409998943Sluigi NEED1("queue needs queue size\n"); 410098943Sluigi end = NULL; 4101117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 410298943Sluigi if (*end == 'K' || *end == 'k') { 4103117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4104117469Sluigi p.fs.qsize *= 1024; 4105140271Sbrooks } else if (*end == 'B' || 4106140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4107117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 410898943Sluigi } 410998943Sluigi ac--; av++; 411098943Sluigi break; 411198943Sluigi 411298943Sluigi case TOK_BUCKETS: 411398943Sluigi NEED1("buckets needs argument\n"); 4114117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 411598943Sluigi ac--; av++; 411698943Sluigi break; 411798943Sluigi 411898943Sluigi case TOK_MASK: 411998943Sluigi NEED1("mask needs mask specifier\n"); 412098943Sluigi /* 412198943Sluigi * per-flow queue, mask is dst_ip, dst_port, 412298943Sluigi * src_ip, src_port, proto measured in bits 412398943Sluigi */ 412498943Sluigi par = NULL; 412598943Sluigi 4126145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 412798943Sluigi end = NULL; 412898943Sluigi 412998943Sluigi while (ac >= 1) { 4130117328Sluigi uint32_t *p32 = NULL; 4131117328Sluigi uint16_t *p16 = NULL; 4132145246Sbrooks uint32_t *p20 = NULL; 4133145246Sbrooks struct in6_addr *pa6 = NULL; 4134145246Sbrooks uint32_t a; 413598943Sluigi 413698943Sluigi tok = match_token(dummynet_params, *av); 413798943Sluigi ac--; av++; 413898943Sluigi switch(tok) { 413998943Sluigi case TOK_ALL: 414098943Sluigi /* 414198943Sluigi * special case, all bits significant 414298943Sluigi */ 4143117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4144117469Sluigi p.fs.flow_mask.src_ip = ~0; 4145117469Sluigi p.fs.flow_mask.dst_port = ~0; 4146117469Sluigi p.fs.flow_mask.src_port = ~0; 4147117469Sluigi p.fs.flow_mask.proto = ~0; 4148145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4149145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4150145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4151117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 415298943Sluigi goto end_mask; 415398943Sluigi 415498943Sluigi case TOK_DSTIP: 4155117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 415698943Sluigi break; 415798943Sluigi 415898943Sluigi case TOK_SRCIP: 4159117469Sluigi p32 = &p.fs.flow_mask.src_ip; 416098943Sluigi break; 416198943Sluigi 4162145246Sbrooks case TOK_DSTIP6: 4163145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4164145246Sbrooks break; 4165145246Sbrooks 4166145246Sbrooks case TOK_SRCIP6: 4167145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4168145246Sbrooks break; 4169145246Sbrooks 4170145246Sbrooks case TOK_FLOWID: 4171145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4172145246Sbrooks break; 4173145246Sbrooks 417498943Sluigi case TOK_DSTPORT: 4175117469Sluigi p16 = &p.fs.flow_mask.dst_port; 417698943Sluigi break; 417798943Sluigi 417898943Sluigi case TOK_SRCPORT: 4179117469Sluigi p16 = &p.fs.flow_mask.src_port; 418098943Sluigi break; 418198943Sluigi 418298943Sluigi case TOK_PROTO: 418398943Sluigi break; 418498943Sluigi 418598943Sluigi default: 418698943Sluigi ac++; av--; /* backtrack */ 418798943Sluigi goto end_mask; 418898943Sluigi } 418998943Sluigi if (ac < 1) 419098943Sluigi errx(EX_USAGE, "mask: value missing"); 419198943Sluigi if (*av[0] == '/') { 419298943Sluigi a = strtoul(av[0]+1, &end, 0); 4193145246Sbrooks if (pa6 == NULL) 4194145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4195106505Smaxim } else 419699909Sluigi a = strtoul(av[0], &end, 0); 419798943Sluigi if (p32 != NULL) 419898943Sluigi *p32 = a; 419998943Sluigi else if (p16 != NULL) { 4200139821Sbrooks if (a > 0xFFFF) 420198943Sluigi errx(EX_DATAERR, 4202144687Sbrooks "port mask must be 16 bit"); 4203117328Sluigi *p16 = (uint16_t)a; 4204145246Sbrooks } else if (p20 != NULL) { 4205145246Sbrooks if (a > 0xfffff) 4206145246Sbrooks errx(EX_DATAERR, 4207145246Sbrooks "flow_id mask must be 20 bit"); 4208145246Sbrooks *p20 = (uint32_t)a; 4209145246Sbrooks } else if (pa6 != NULL) { 4210145246Sbrooks if (a < 0 || a > 128) 4211145246Sbrooks errx(EX_DATAERR, 4212145246Sbrooks "in6addr invalid mask len"); 4213145246Sbrooks else 4214145246Sbrooks n2mask(pa6, a); 421598943Sluigi } else { 4216139821Sbrooks if (a > 0xFF) 421798943Sluigi errx(EX_DATAERR, 4218144687Sbrooks "proto mask must be 8 bit"); 4219117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 422098943Sluigi } 422198943Sluigi if (a != 0) 4222117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 422398943Sluigi ac--; av++; 422498943Sluigi } /* end while, config masks */ 422598943Sluigiend_mask: 422698943Sluigi break; 422798943Sluigi 422898943Sluigi case TOK_RED: 422998943Sluigi case TOK_GRED: 423098943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4231117469Sluigi p.fs.flags_fs |= DN_IS_RED; 423298943Sluigi if (tok == TOK_GRED) 4233117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 423498943Sluigi /* 423598943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 423698943Sluigi */ 423798943Sluigi if ((end = strsep(&av[0], "/"))) { 423898943Sluigi double w_q = strtod(end, NULL); 423998943Sluigi if (w_q > 1 || w_q <= 0) 424098943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4241117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 424298943Sluigi } 424398943Sluigi if ((end = strsep(&av[0], "/"))) { 4244117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 424598943Sluigi if (*end == 'K' || *end == 'k') 4246117469Sluigi p.fs.min_th *= 1024; 424798943Sluigi } 424898943Sluigi if ((end = strsep(&av[0], "/"))) { 4249117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 425098943Sluigi if (*end == 'K' || *end == 'k') 4251117469Sluigi p.fs.max_th *= 1024; 425298943Sluigi } 425398943Sluigi if ((end = strsep(&av[0], "/"))) { 425498943Sluigi double max_p = strtod(end, NULL); 425598943Sluigi if (max_p > 1 || max_p <= 0) 425698943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4257117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 425898943Sluigi } 425998943Sluigi ac--; av++; 426098943Sluigi break; 426198943Sluigi 426298943Sluigi case TOK_DROPTAIL: 4263117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 426498943Sluigi break; 4265106505Smaxim 426698943Sluigi case TOK_BW: 426798943Sluigi NEED1("bw needs bandwidth or interface\n"); 426898943Sluigi if (do_pipe != 1) 426998943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 427098943Sluigi /* 427198943Sluigi * set clocking interface or bandwidth value 427298943Sluigi */ 427398943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4274117469Sluigi int l = sizeof(p.if_name)-1; 427598943Sluigi /* interface name */ 4276117469Sluigi strncpy(p.if_name, av[0], l); 4277117469Sluigi p.if_name[l] = '\0'; 4278117469Sluigi p.bandwidth = 0; 427998943Sluigi } else { 4280117469Sluigi p.if_name[0] = '\0'; 4281117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 428298943Sluigi if (*end == 'K' || *end == 'k') { 428398943Sluigi end++; 4284117469Sluigi p.bandwidth *= 1000; 428598943Sluigi } else if (*end == 'M') { 428698943Sluigi end++; 4287117469Sluigi p.bandwidth *= 1000000; 428898943Sluigi } 4289161550Sdwmalone if ((*end == 'B' && 4290161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4291140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4292117469Sluigi p.bandwidth *= 8; 4293117469Sluigi if (p.bandwidth < 0) 429498943Sluigi errx(EX_DATAERR, "bandwidth too large"); 429598943Sluigi } 429698943Sluigi ac--; av++; 429798943Sluigi break; 429898943Sluigi 429998943Sluigi case TOK_DELAY: 430098943Sluigi if (do_pipe != 1) 430198943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 430298943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4303117469Sluigi p.delay = strtoul(av[0], NULL, 0); 430498943Sluigi ac--; av++; 430598943Sluigi break; 430698943Sluigi 430798943Sluigi case TOK_WEIGHT: 430898943Sluigi if (do_pipe == 1) 430998943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 431098943Sluigi NEED1("weight needs argument 0..100\n"); 4311117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 431298943Sluigi ac--; av++; 431398943Sluigi break; 431498943Sluigi 431598943Sluigi case TOK_PIPE: 431698943Sluigi if (do_pipe == 1) 431798943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 431898943Sluigi NEED1("pipe needs pipe_number\n"); 4319117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 432098943Sluigi ac--; av++; 432198943Sluigi break; 432298943Sluigi 432398943Sluigi default: 4324124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 432598943Sluigi } 432698943Sluigi } 432798943Sluigi if (do_pipe == 1) { 4328117469Sluigi if (p.pipe_nr == 0) 432998943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4330117469Sluigi if (p.delay > 10000) 433198943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 433298943Sluigi } else { /* do_pipe == 2, queue */ 4333117469Sluigi if (p.fs.parent_nr == 0) 433498943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4335117469Sluigi if (p.fs.weight >100) 433698943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 433798943Sluigi } 4338117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4339117469Sluigi if (p.fs.qsize > 1024*1024) 434098943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 434198943Sluigi } else { 4342117469Sluigi if (p.fs.qsize > 100) 434398943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 434498943Sluigi } 4345117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 434698943Sluigi size_t len; 434798943Sluigi int lookup_depth, avg_pkt_size; 434898943Sluigi double s, idle, weight, w_q; 4349117469Sluigi struct clockinfo ck; 435098943Sluigi int t; 435198943Sluigi 4352117469Sluigi if (p.fs.min_th >= p.fs.max_th) 435398943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4354117469Sluigi p.fs.min_th, p.fs.max_th); 4355117469Sluigi if (p.fs.max_th == 0) 435698943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 435798943Sluigi 435898943Sluigi len = sizeof(int); 435998943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 436098943Sluigi &lookup_depth, &len, NULL, 0) == -1) 436198943Sluigi 436298943Sluigi errx(1, "sysctlbyname(\"%s\")", 436398943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 436498943Sluigi if (lookup_depth == 0) 436598943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 436698943Sluigi " must be greater than zero"); 436798943Sluigi 436898943Sluigi len = sizeof(int); 436998943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 437098943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 437198943Sluigi 437298943Sluigi errx(1, "sysctlbyname(\"%s\")", 437398943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 437498943Sluigi if (avg_pkt_size == 0) 437598943Sluigi errx(EX_DATAERR, 437698943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 437798943Sluigi " be greater than zero"); 437898943Sluigi 437998943Sluigi len = sizeof(struct clockinfo); 4380117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 438198943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 438298943Sluigi 438398943Sluigi /* 438498943Sluigi * Ticks needed for sending a medium-sized packet. 438598943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 438698943Sluigi * do not have bandwidth information, because that is stored 438798943Sluigi * in the parent pipe, and also we have multiple queues 438898943Sluigi * competing for it. So we set s=0, which is not very 438998943Sluigi * correct. But on the other hand, why do we want RED with 439098943Sluigi * WF2Q+ ? 439198943Sluigi */ 4392117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 439398943Sluigi s = 0; 439498943Sluigi else 4395117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 439698943Sluigi 439798943Sluigi /* 439898943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 439998943Sluigi * NOTA: (3/w_q) is approx the value x so that 440098943Sluigi * (1-w_q)^x < 10^-3. 440198943Sluigi */ 4402117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 440398943Sluigi idle = s * 3. / w_q; 4404117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4405117469Sluigi if (!p.fs.lookup_step) 4406117469Sluigi p.fs.lookup_step = 1; 440798943Sluigi weight = 1 - w_q; 4408117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 440998943Sluigi weight *= weight; 4410117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 441198943Sluigi } 4412117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 441398943Sluigi if (i) 441498943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 441598943Sluigi} 441698943Sluigi 441798943Sluigistatic void 4418169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 441998943Sluigi{ 442098943Sluigi int i, l; 4421169424Smaxim char *ap, *ptr, *optr; 4422169424Smaxim struct ether_addr *mac; 4423169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 442498943Sluigi 4425169424Smaxim if (strcmp(p, "any") == 0) { 4426169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4427169424Smaxim addr[i] = mask[i] = 0; 442898943Sluigi return; 4429169424Smaxim } 443098943Sluigi 4431169424Smaxim optr = ptr = strdup(p); 4432169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4433169424Smaxim l = strlen(ap); 4434169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4435169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4436169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4437169424Smaxim } else 4438169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4439169424Smaxim 4440169424Smaxim if (ptr != NULL) { /* we have mask? */ 4441169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4442169424Smaxim l = strtol(ptr, &ap, 10); 4443169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4444169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4445169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4446169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4447169424Smaxim } else { /* mask */ 4448169424Smaxim l = strlen(ptr); 4449169424Smaxim if (strspn(ptr, macset) != l || 4450169424Smaxim (mac = ether_aton(ptr)) == NULL) 4451169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4452169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 445398943Sluigi } 4454169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4455169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 445698943Sluigi mask[i] = 0xff; 445798943Sluigi } 4458169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 445998943Sluigi addr[i] &= mask[i]; 4460169424Smaxim 4461169424Smaxim free(optr); 446298943Sluigi} 446398943Sluigi 446498943Sluigi/* 446598943Sluigi * helper function, updates the pointer to cmd with the length 446698943Sluigi * of the current command, and also cleans up the first word of 446798943Sluigi * the new command in case it has been clobbered before. 446898943Sluigi */ 446998943Sluigistatic ipfw_insn * 447098943Sluiginext_cmd(ipfw_insn *cmd) 447198943Sluigi{ 447298943Sluigi cmd += F_LEN(cmd); 447398943Sluigi bzero(cmd, sizeof(*cmd)); 447498943Sluigi return cmd; 447598943Sluigi} 447698943Sluigi 447798943Sluigi/* 4478117469Sluigi * Takes arguments and copies them into a comment 4479117469Sluigi */ 4480117469Sluigistatic void 4481117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4482117469Sluigi{ 4483117469Sluigi int i, l; 4484117469Sluigi char *p = (char *)(cmd + 1); 4485117577Sluigi 4486117469Sluigi cmd->opcode = O_NOP; 4487117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4488117469Sluigi 4489117469Sluigi /* Compute length of comment string. */ 4490117469Sluigi for (i = 0, l = 0; i < ac; i++) 4491117469Sluigi l += strlen(av[i]) + 1; 4492117469Sluigi if (l == 0) 4493117469Sluigi return; 4494117469Sluigi if (l > 84) 4495117469Sluigi errx(EX_DATAERR, 4496117469Sluigi "comment too long (max 80 chars)"); 4497117469Sluigi l = 1 + (l+3)/4; 4498117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4499117469Sluigi for (i = 0; i < ac; i++) { 4500117469Sluigi strcpy(p, av[i]); 4501117469Sluigi p += strlen(av[i]); 4502117469Sluigi *p++ = ' '; 4503117469Sluigi } 4504117469Sluigi *(--p) = '\0'; 4505117469Sluigi} 4506117577Sluigi 4507117469Sluigi/* 450898943Sluigi * A function to fill simple commands of size 1. 450998943Sluigi * Existing flags are preserved. 451098943Sluigi */ 451198943Sluigistatic void 4512117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 451398943Sluigi{ 451498943Sluigi cmd->opcode = opcode; 451598943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 451698943Sluigi cmd->arg1 = arg; 451798943Sluigi} 451898943Sluigi 451998943Sluigi/* 452098943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 452198943Sluigi * two microinstructions, and returns the pointer to the last one. 452298943Sluigi */ 452398943Sluigistatic ipfw_insn * 452498943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 452598943Sluigi{ 4526102087Sluigi ipfw_insn_mac *mac; 452798943Sluigi 4528102087Sluigi if (ac < 2) 4529102098Sluigi errx(EX_DATAERR, "MAC dst src"); 453098943Sluigi 453198943Sluigi cmd->opcode = O_MACADDR2; 453298943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 453398943Sluigi 453498943Sluigi mac = (ipfw_insn_mac *)cmd; 4535101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4536169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4537169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4538102087Sluigi return cmd; 4539102087Sluigi} 454098943Sluigi 4541102087Sluigistatic ipfw_insn * 4542102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4543102087Sluigi{ 4544102087Sluigi if (ac < 1) 4545102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4546102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4547102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 454898943Sluigi cmd->opcode = O_MAC_TYPE; 4549102087Sluigi return cmd; 4550102087Sluigi } else 4551102087Sluigi return NULL; 4552102087Sluigi} 455398943Sluigi 4554102087Sluigistatic ipfw_insn * 4555152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4556102087Sluigi{ 4557102087Sluigi struct protoent *pe; 4558152923Sume char *ep; 4559152923Sume int proto; 4560102087Sluigi 4561156315Sume proto = strtol(av, &ep, 10); 4562156315Sume if (*ep != '\0' || proto <= 0) { 4563152923Sume if ((pe = getprotobyname(av)) == NULL) 4564152923Sume return NULL; 4565152923Sume proto = pe->p_proto; 4566152923Sume } 4567145246Sbrooks 4568152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4569152923Sume *protop = proto; 4570152923Sume return cmd; 4571152923Sume} 4572152923Sume 4573152923Sumestatic ipfw_insn * 4574152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4575152923Sume{ 4576152923Sume u_char proto = IPPROTO_IP; 4577152923Sume 4578156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4579146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4580152923Sume else if (strcmp(av, "ip4") == 0) 4581152923Sume /* explicit "just IPv4" rule */ 4582152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4583152923Sume else if (strcmp(av, "ip6") == 0) { 4584152923Sume /* explicit "just IPv6" rule */ 4585152923Sume proto = IPPROTO_IPV6; 4586152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4587152923Sume } else 4588152923Sume return add_proto0(cmd, av, protop); 4589152923Sume 4590152923Sume *protop = proto; 4591152923Sume return cmd; 4592152923Sume} 4593152923Sume 4594152923Sumestatic ipfw_insn * 4595152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4596152923Sume{ 4597152923Sume u_char proto = IPPROTO_IP; 4598152923Sume 4599152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4600152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4601146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4602146894Smlaier /* explicit "just IPv4" rule */ 4603146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4604146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4605146894Smlaier /* explicit "just IPv6" rule */ 4606152923Sume proto = IPPROTO_IPV6; 4607146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4608152923Sume } else 4609152923Sume return add_proto0(cmd, av, protop); 4610145246Sbrooks 4611152923Sume *protop = proto; 461298943Sluigi return cmd; 461398943Sluigi} 461498943Sluigi 4615102087Sluigistatic ipfw_insn * 4616102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4617102087Sluigi{ 4618102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4619102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4620102087Sluigi cmd->opcode = O_IP_SRC_SET; 4621130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4622130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4623102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4624102087Sluigi cmd->opcode = O_IP_SRC_ME; 4625102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4626102087Sluigi cmd->opcode = O_IP_SRC; 4627117328Sluigi else /* addr/mask */ 4628102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4629102087Sluigi return cmd; 4630102087Sluigi} 4631102087Sluigi 4632102087Sluigistatic ipfw_insn * 4633102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4634102087Sluigi{ 4635102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4636102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4637102087Sluigi ; 4638130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4639130281Sru ; 4640102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4641102087Sluigi cmd->opcode = O_IP_DST_ME; 4642102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4643102087Sluigi cmd->opcode = O_IP_DST; 4644117328Sluigi else /* addr/mask */ 4645102087Sluigi cmd->opcode = O_IP_DST_MASK; 4646102087Sluigi return cmd; 4647102087Sluigi} 4648102087Sluigi 4649102087Sluigistatic ipfw_insn * 4650102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4651102087Sluigi{ 4652140271Sbrooks if (_substrcmp(av, "any") == 0) { 4653102087Sluigi return NULL; 4654102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4655102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4656102087Sluigi cmd->opcode = opcode; 4657102087Sluigi return cmd; 4658102087Sluigi } 4659102087Sluigi return NULL; 4660102087Sluigi} 4661102087Sluigi 4662145246Sbrooksstatic ipfw_insn * 4663145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 4664145246Sbrooks{ 4665145246Sbrooks struct in6_addr a; 4666158553Smlaier char *host, *ch; 4667158553Smlaier ipfw_insn *ret = NULL; 4668145246Sbrooks 4669158553Smlaier if ((host = strdup(av)) == NULL) 4670158553Smlaier return NULL; 4671158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4672158553Smlaier *ch = '\0'; 4673158553Smlaier 4674145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4675158553Smlaier inet_pton(AF_INET6, host, &a)) 4676158553Smlaier ret = add_srcip6(cmd, av); 4677145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4678161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4679161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4680158553Smlaier ret = add_srcip(cmd, av); 4681161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4682158553Smlaier ret = cmd; 4683145246Sbrooks 4684158553Smlaier free(host); 4685158553Smlaier return ret; 4686145246Sbrooks} 4687145246Sbrooks 4688145246Sbrooksstatic ipfw_insn * 4689145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4690145246Sbrooks{ 4691145246Sbrooks struct in6_addr a; 4692158553Smlaier char *host, *ch; 4693158553Smlaier ipfw_insn *ret = NULL; 4694145246Sbrooks 4695158553Smlaier if ((host = strdup(av)) == NULL) 4696158553Smlaier return NULL; 4697158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4698158553Smlaier *ch = '\0'; 4699158553Smlaier 4700145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4701158553Smlaier inet_pton(AF_INET6, host, &a)) 4702158553Smlaier ret = add_dstip6(cmd, av); 4703145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4704161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4705161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4706158553Smlaier ret = add_dstip(cmd, av); 4707161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4708158553Smlaier ret = cmd; 4709145246Sbrooks 4710158553Smlaier free(host); 4711158553Smlaier return ret; 4712145246Sbrooks} 4713145246Sbrooks 471498943Sluigi/* 471598943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 471698943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 471798943Sluigi * into the actual rule. 471898943Sluigi * 4719136071Sgreen * The syntax for a rule starts with the action, followed by 4720136071Sgreen * optional action parameters, and the various match patterns. 4721108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 472298943Sluigi * (generated if the rule includes a keep-state option), then the 4723136071Sgreen * various match patterns, log/altq actions, and the actual action. 4724106505Smaxim * 472598943Sluigi */ 472698943Sluigistatic void 472798943Sluigiadd(int ac, char *av[]) 472898943Sluigi{ 472998943Sluigi /* 473098943Sluigi * rules are added into the 'rulebuf' and then copied in 473198943Sluigi * the correct order into the actual rule. 473298943Sluigi * Some things that need to go out of order (prob, action etc.) 473398943Sluigi * go into actbuf[]. 473498943Sluigi */ 4735117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 473698943Sluigi 4737117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4738102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 473998943Sluigi 474098943Sluigi struct ip_fw *rule; 474198943Sluigi 474298943Sluigi /* 474398943Sluigi * various flags used to record that we entered some fields. 474498943Sluigi */ 4745101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4746158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4747134475Smaxim size_t len; 474898943Sluigi 474998943Sluigi int i; 475098943Sluigi 475198943Sluigi int open_par = 0; /* open parenthesis ( */ 475298943Sluigi 475398943Sluigi /* proto is here because it is used to fetch ports */ 475498943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 475598943Sluigi 4756107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4757107289Sluigi 475898943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 475998943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 476098943Sluigi bzero(rulebuf, sizeof(rulebuf)); 476198943Sluigi 476298943Sluigi rule = (struct ip_fw *)rulebuf; 476398943Sluigi cmd = (ipfw_insn *)cmdbuf; 476498943Sluigi action = (ipfw_insn *)actbuf; 476598943Sluigi 476698943Sluigi av++; ac--; 476798943Sluigi 476898943Sluigi /* [rule N] -- Rule number optional */ 476998943Sluigi if (ac && isdigit(**av)) { 477098943Sluigi rule->rulenum = atoi(*av); 477198943Sluigi av++; 477298943Sluigi ac--; 477398943Sluigi } 477498943Sluigi 4775117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4776140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4777101628Sluigi int set = strtoul(av[1], NULL, 10); 4778117655Sluigi if (set < 0 || set > RESVD_SET) 4779101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4780101628Sluigi rule->set = set; 4781101628Sluigi av += 2; ac -= 2; 4782101628Sluigi } 4783101628Sluigi 478498943Sluigi /* [prob D] -- match probability, optional */ 4785140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4786107289Sluigi match_prob = strtod(av[1], NULL); 478798943Sluigi 4788107289Sluigi if (match_prob <= 0 || match_prob > 1) 478998943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 479098943Sluigi av += 2; ac -= 2; 479198943Sluigi } 479298943Sluigi 479398943Sluigi /* action -- mandatory */ 479498943Sluigi NEED1("missing action"); 479598943Sluigi i = match_token(rule_actions, *av); 479698943Sluigi ac--; av++; 479798943Sluigi action->len = 1; /* default */ 479898943Sluigi switch(i) { 479998943Sluigi case TOK_CHECKSTATE: 4800101116Sluigi have_state = action; 480198943Sluigi action->opcode = O_CHECK_STATE; 480298943Sluigi break; 480398943Sluigi 480498943Sluigi case TOK_ACCEPT: 480598943Sluigi action->opcode = O_ACCEPT; 480698943Sluigi break; 480798943Sluigi 480898943Sluigi case TOK_DENY: 480998943Sluigi action->opcode = O_DENY; 481099475Sluigi action->arg1 = 0; 481198943Sluigi break; 481298943Sluigi 481399475Sluigi case TOK_REJECT: 481499475Sluigi action->opcode = O_REJECT; 481599475Sluigi action->arg1 = ICMP_UNREACH_HOST; 481699475Sluigi break; 481799475Sluigi 481899475Sluigi case TOK_RESET: 481999475Sluigi action->opcode = O_REJECT; 482099475Sluigi action->arg1 = ICMP_REJECT_RST; 482199475Sluigi break; 482299475Sluigi 4823149020Sbz case TOK_RESET6: 4824149020Sbz action->opcode = O_UNREACH6; 4825149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4826149020Sbz break; 4827149020Sbz 482899475Sluigi case TOK_UNREACH: 482999475Sluigi action->opcode = O_REJECT; 483099475Sluigi NEED1("missing reject code"); 483199475Sluigi fill_reject_code(&action->arg1, *av); 483299475Sluigi ac--; av++; 483399475Sluigi break; 483499475Sluigi 4835149020Sbz case TOK_UNREACH6: 4836149020Sbz action->opcode = O_UNREACH6; 4837149020Sbz NEED1("missing unreach code"); 4838149020Sbz fill_unreach6_code(&action->arg1, *av); 4839149020Sbz ac--; av++; 4840149020Sbz break; 4841149020Sbz 484298943Sluigi case TOK_COUNT: 484398943Sluigi action->opcode = O_COUNT; 484498943Sluigi break; 484598943Sluigi 484698943Sluigi case TOK_QUEUE: 4847153374Sglebius action->opcode = O_QUEUE; 4848153374Sglebius goto chkarg; 484998943Sluigi case TOK_PIPE: 4850153374Sglebius action->opcode = O_PIPE; 4851153374Sglebius goto chkarg; 485298943Sluigi case TOK_SKIPTO: 4853153374Sglebius action->opcode = O_SKIPTO; 4854153374Sglebius goto chkarg; 4855153374Sglebius case TOK_NETGRAPH: 4856153374Sglebius action->opcode = O_NETGRAPH; 4857153374Sglebius goto chkarg; 4858153374Sglebius case TOK_NGTEE: 4859153374Sglebius action->opcode = O_NGTEE; 4860153374Sglebius goto chkarg; 486198943Sluigi case TOK_DIVERT: 4862153374Sglebius action->opcode = O_DIVERT; 4863153374Sglebius goto chkarg; 486498943Sluigi case TOK_TEE: 4865153374Sglebius action->opcode = O_TEE; 4866153374Sglebiuschkarg: 4867153374Sglebius if (!ac) 4868153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4869153374Sglebius if (isdigit(**av)) { 4870153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4871153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4872153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4873153374Sglebius *(av - 1)); 4874153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 4875153374Sglebius action->arg1 = IP_FW_TABLEARG; 4876153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 487798943Sluigi struct servent *s; 487898943Sluigi setservent(1); 487998943Sluigi s = getservbyname(av[0], "divert"); 488098943Sluigi if (s != NULL) 488198943Sluigi action->arg1 = ntohs(s->s_port); 488298943Sluigi else 488398943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4884153374Sglebius } else 4885153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 488698943Sluigi ac--; av++; 488798943Sluigi break; 488898943Sluigi 488998943Sluigi case TOK_FORWARD: { 489098943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 489198943Sluigi char *s, *end; 489298943Sluigi 489398943Sluigi NEED1("missing forward address[:port]"); 489498943Sluigi 489598943Sluigi action->opcode = O_FORWARD_IP; 489698943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 489798943Sluigi 489898943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 489998943Sluigi p->sa.sin_family = AF_INET; 490098943Sluigi p->sa.sin_port = 0; 490198943Sluigi /* 490298943Sluigi * locate the address-port separator (':' or ',') 490398943Sluigi */ 490498943Sluigi s = strchr(*av, ':'); 490598943Sluigi if (s == NULL) 490698943Sluigi s = strchr(*av, ','); 490798943Sluigi if (s != NULL) { 490898943Sluigi *(s++) = '\0'; 490998943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 491098943Sluigi if (s == end) 491198943Sluigi errx(EX_DATAERR, 491298943Sluigi "illegal forwarding port ``%s''", s); 4913103241Sluigi p->sa.sin_port = (u_short)i; 491498943Sluigi } 4915161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4916161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4917161456Sjulian else 4918161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 491998943Sluigi ac--; av++; 492098943Sluigi break; 4921161424Sjulian } 4922117469Sluigi case TOK_COMMENT: 4923117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4924117469Sluigi action->opcode = O_COUNT; 4925117469Sluigi ac++; av--; /* go back... */ 4926117469Sluigi break; 4927117469Sluigi 4928165648Spiso case TOK_NAT: 4929165648Spiso action->opcode = O_NAT; 4930165648Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4931165648Spiso NEED1("missing nat number"); 4932165648Spiso action->arg1 = strtoul(*av, NULL, 10); 4933165648Spiso ac--; av++; 4934165648Spiso break; 4935165648Spiso 493698943Sluigi default: 4937102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 493898943Sluigi } 493998943Sluigi action = next_cmd(action); 494098943Sluigi 494198943Sluigi /* 4942136071Sgreen * [altq queuename] -- altq tag, optional 494398943Sluigi * [log [logamount N]] -- log, optional 494498943Sluigi * 4945136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 494698943Sluigi * skipped in the copy section to the end of the buffer. 494798943Sluigi */ 4948136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4949136071Sgreen ac--; av++; 4950136071Sgreen switch (i) { 4951136071Sgreen case TOK_LOG: 4952136071Sgreen { 4953136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4954136071Sgreen int l; 495598943Sluigi 4956136071Sgreen if (have_log) 4957136071Sgreen errx(EX_DATAERR, 4958136071Sgreen "log cannot be specified more than once"); 4959136071Sgreen have_log = (ipfw_insn *)c; 4960136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 4961136071Sgreen cmd->opcode = O_LOG; 4962140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 4963136071Sgreen ac--; av++; 4964136071Sgreen NEED1("logamount requires argument"); 4965136071Sgreen l = atoi(*av); 4966136071Sgreen if (l < 0) 4967136071Sgreen errx(EX_DATAERR, 4968136071Sgreen "logamount must be positive"); 4969136071Sgreen c->max_log = l; 4970136071Sgreen ac--; av++; 4971136071Sgreen } else { 4972136071Sgreen len = sizeof(c->max_log); 4973136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 4974136071Sgreen &c->max_log, &len, NULL, 0) == -1) 4975136071Sgreen errx(1, "sysctlbyname(\"%s\")", 4976136071Sgreen "net.inet.ip.fw.verbose_limit"); 4977136071Sgreen } 4978136071Sgreen } 4979136071Sgreen break; 4980136071Sgreen 4981136071Sgreen case TOK_ALTQ: 4982136071Sgreen { 4983136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4984136071Sgreen 4985136071Sgreen NEED1("missing altq queue name"); 4986136071Sgreen if (have_altq) 4987136071Sgreen errx(EX_DATAERR, 4988136071Sgreen "altq cannot be specified more than once"); 4989136071Sgreen have_altq = (ipfw_insn *)a; 4990136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4991136071Sgreen cmd->opcode = O_ALTQ; 4992136071Sgreen fill_altq_qid(&a->qid, *av); 499398943Sluigi ac--; av++; 4994136071Sgreen } 4995136071Sgreen break; 4996136071Sgreen 4997158879Soleg case TOK_TAG: 4998159636Soleg case TOK_UNTAG: { 4999159636Soleg uint16_t tag; 5000159636Soleg 5001158879Soleg if (have_tag) 5002159636Soleg errx(EX_USAGE, "tag and untag cannot be " 5003159636Soleg "specified more than once"); 5004159636Soleg GET_UINT_ARG(tag, 1, 65534, i, rule_action_params); 5005158879Soleg have_tag = cmd; 5006159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 5007158879Soleg ac--; av++; 5008158879Soleg break; 5009159636Soleg } 5010158879Soleg 5011136071Sgreen default: 5012136071Sgreen abort(); 501398943Sluigi } 501498943Sluigi cmd = next_cmd(cmd); 501598943Sluigi } 501698943Sluigi 5017101116Sluigi if (have_state) /* must be a check-state, we are done */ 501898943Sluigi goto done; 501998943Sluigi 502098943Sluigi#define OR_START(target) \ 502198943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 502298943Sluigi if (open_par) \ 502398943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 5024101641Sluigi prev = NULL; \ 502598943Sluigi open_par = 1; \ 502698943Sluigi if ( (av[0])[1] == '\0') { \ 502798943Sluigi ac--; av++; \ 502898943Sluigi } else \ 502998943Sluigi (*av)++; \ 503098943Sluigi } \ 503198943Sluigi target: \ 503298943Sluigi 503398943Sluigi 503498943Sluigi#define CLOSE_PAR \ 503598943Sluigi if (open_par) { \ 503698943Sluigi if (ac && ( \ 5037140271Sbrooks strcmp(*av, ")") == 0 || \ 5038140271Sbrooks strcmp(*av, "}") == 0)) { \ 5039101641Sluigi prev = NULL; \ 504098943Sluigi open_par = 0; \ 504198943Sluigi ac--; av++; \ 504298943Sluigi } else \ 504398943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 504498943Sluigi } 5045106505Smaxim 504698943Sluigi#define NOT_BLOCK \ 5047140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 504898943Sluigi if (cmd->len & F_NOT) \ 504998943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 505098943Sluigi cmd->len |= F_NOT; \ 505198943Sluigi ac--; av++; \ 505298943Sluigi } 505398943Sluigi 505498943Sluigi#define OR_BLOCK(target) \ 5055140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 505698943Sluigi if (prev == NULL || open_par == 0) \ 505798943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 505898943Sluigi prev->len |= F_OR; \ 505998943Sluigi ac--; av++; \ 506098943Sluigi goto target; \ 506198943Sluigi } \ 506298943Sluigi CLOSE_PAR; 506398943Sluigi 5064102087Sluigi first_cmd = cmd; 5065102098Sluigi 5066102098Sluigi#if 0 506798943Sluigi /* 5068102087Sluigi * MAC addresses, optional. 5069102087Sluigi * If we have this, we skip the part "proto from src to dst" 5070102087Sluigi * and jump straight to the option parsing. 5071102087Sluigi */ 5072102087Sluigi NOT_BLOCK; 5073102087Sluigi NEED1("missing protocol"); 5074140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5075140271Sbrooks _substrcmp(*av, "mac") == 0) { 5076102087Sluigi ac--; av++; /* the "MAC" keyword */ 5077102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5078102087Sluigi cmd = next_cmd(cmd); 5079102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5080102087Sluigi NOT_BLOCK; 5081102087Sluigi NEED1("missing mac type"); 5082102087Sluigi if (add_mactype(cmd, ac, av[0])) 5083102087Sluigi cmd = next_cmd(cmd); 5084102087Sluigi ac--; av++; /* any or mac-type */ 5085102087Sluigi goto read_options; 5086102087Sluigi } 5087102098Sluigi#endif 5088102087Sluigi 5089102087Sluigi /* 509098943Sluigi * protocol, mandatory 509198943Sluigi */ 509298943Sluigi OR_START(get_proto); 509398943Sluigi NOT_BLOCK; 509498943Sluigi NEED1("missing protocol"); 5095152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5096102087Sluigi av++; ac--; 5097147105Smlaier if (F_LEN(cmd) != 0) { 5098102087Sluigi prev = cmd; 5099102087Sluigi cmd = next_cmd(cmd); 5100102087Sluigi } 5101102098Sluigi } else if (first_cmd != cmd) { 5102116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5103102098Sluigi } else 5104102098Sluigi goto read_options; 510598943Sluigi OR_BLOCK(get_proto); 510698943Sluigi 510798943Sluigi /* 5108102087Sluigi * "from", mandatory 510998943Sluigi */ 5110140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 511198943Sluigi errx(EX_USAGE, "missing ``from''"); 511298943Sluigi ac--; av++; 511398943Sluigi 511498943Sluigi /* 511598943Sluigi * source IP, mandatory 511698943Sluigi */ 511798943Sluigi OR_START(source_ip); 511898943Sluigi NOT_BLOCK; /* optional "not" */ 511998943Sluigi NEED1("missing source address"); 5120145246Sbrooks if (add_src(cmd, *av, proto)) { 5121102087Sluigi ac--; av++; 5122102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5123102087Sluigi prev = cmd; 5124102087Sluigi cmd = next_cmd(cmd); 5125102087Sluigi } 5126145246Sbrooks } else 5127145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 512898943Sluigi OR_BLOCK(source_ip); 512998943Sluigi 513098943Sluigi /* 513198943Sluigi * source ports, optional 513298943Sluigi */ 513398943Sluigi NOT_BLOCK; /* optional "not" */ 5134101641Sluigi if (ac) { 5135140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5136102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5137102087Sluigi ac--; av++; 5138102087Sluigi if (F_LEN(cmd) != 0) 5139102087Sluigi cmd = next_cmd(cmd); 5140101641Sluigi } 514198943Sluigi } 514298943Sluigi 514398943Sluigi /* 5144102087Sluigi * "to", mandatory 514598943Sluigi */ 5146140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 514798943Sluigi errx(EX_USAGE, "missing ``to''"); 514898943Sluigi av++; ac--; 514998943Sluigi 515098943Sluigi /* 515198943Sluigi * destination, mandatory 515298943Sluigi */ 515398943Sluigi OR_START(dest_ip); 515498943Sluigi NOT_BLOCK; /* optional "not" */ 515598943Sluigi NEED1("missing dst address"); 5156145246Sbrooks if (add_dst(cmd, *av, proto)) { 5157102087Sluigi ac--; av++; 5158102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5159102087Sluigi prev = cmd; 5160102087Sluigi cmd = next_cmd(cmd); 5161102087Sluigi } 5162145246Sbrooks } else 5163145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 516498943Sluigi OR_BLOCK(dest_ip); 516598943Sluigi 516698943Sluigi /* 516798943Sluigi * dest. ports, optional 516898943Sluigi */ 516998943Sluigi NOT_BLOCK; /* optional "not" */ 5170101641Sluigi if (ac) { 5171140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5172102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5173102087Sluigi ac--; av++; 5174102087Sluigi if (F_LEN(cmd) != 0) 5175102087Sluigi cmd = next_cmd(cmd); 5176101641Sluigi } 517798943Sluigi } 517898943Sluigi 517998943Sluigiread_options: 5180102087Sluigi if (ac && first_cmd == cmd) { 5181102087Sluigi /* 5182102087Sluigi * nothing specified so far, store in the rule to ease 5183102087Sluigi * printout later. 5184102087Sluigi */ 5185102087Sluigi rule->_pad = 1; 5186102087Sluigi } 518798943Sluigi prev = NULL; 518898943Sluigi while (ac) { 5189101641Sluigi char *s; 5190101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 519198943Sluigi 5192101641Sluigi s = *av; 5193101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5194101641Sluigi 519598943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 519698943Sluigi if (cmd->len & F_NOT) 519798943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 519898943Sluigi cmd->len = F_NOT; 519998943Sluigi s++; 520098943Sluigi } 520198943Sluigi i = match_token(rule_options, s); 520298943Sluigi ac--; av++; 520398943Sluigi switch(i) { 520498943Sluigi case TOK_NOT: 520598943Sluigi if (cmd->len & F_NOT) 520698943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 520798943Sluigi cmd->len = F_NOT; 520898943Sluigi break; 520998943Sluigi 521098943Sluigi case TOK_OR: 5211101641Sluigi if (open_par == 0 || prev == NULL) 521298943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 521398943Sluigi prev->len |= F_OR; 521498943Sluigi break; 5215101641Sluigi 5216101641Sluigi case TOK_STARTBRACE: 5217101641Sluigi if (open_par) 5218101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5219101641Sluigi open_par = 1; 5220101641Sluigi break; 5221101641Sluigi 5222101641Sluigi case TOK_ENDBRACE: 5223101641Sluigi if (!open_par) 5224101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5225101641Sluigi open_par = 0; 5226102087Sluigi prev = NULL; 5227101641Sluigi break; 5228101641Sluigi 522998943Sluigi case TOK_IN: 523098943Sluigi fill_cmd(cmd, O_IN, 0, 0); 523198943Sluigi break; 523298943Sluigi 523398943Sluigi case TOK_OUT: 523498943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 523598943Sluigi fill_cmd(cmd, O_IN, 0, 0); 523698943Sluigi break; 523798943Sluigi 5238136073Sgreen case TOK_DIVERTED: 5239136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5240136073Sgreen break; 5241136073Sgreen 5242136073Sgreen case TOK_DIVERTEDLOOPBACK: 5243136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5244136073Sgreen break; 5245136073Sgreen 5246136073Sgreen case TOK_DIVERTEDOUTPUT: 5247136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5248136073Sgreen break; 5249136073Sgreen 525098943Sluigi case TOK_FRAG: 525198943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 525298943Sluigi break; 525398943Sluigi 525498943Sluigi case TOK_LAYER2: 525598943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 525698943Sluigi break; 525798943Sluigi 525898943Sluigi case TOK_XMIT: 525998943Sluigi case TOK_RECV: 526098943Sluigi case TOK_VIA: 526198943Sluigi NEED1("recv, xmit, via require interface name" 526298943Sluigi " or address"); 526398943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 526498943Sluigi ac--; av++; 526598943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 526698943Sluigi break; 526798943Sluigi if (i == TOK_XMIT) 526898943Sluigi cmd->opcode = O_XMIT; 526998943Sluigi else if (i == TOK_RECV) 527098943Sluigi cmd->opcode = O_RECV; 527198943Sluigi else if (i == TOK_VIA) 527298943Sluigi cmd->opcode = O_VIA; 527398943Sluigi break; 527498943Sluigi 527599475Sluigi case TOK_ICMPTYPES: 527699475Sluigi NEED1("icmptypes requires list of types"); 527799475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 527899475Sluigi av++; ac--; 527999475Sluigi break; 5280145246Sbrooks 5281145246Sbrooks case TOK_ICMP6TYPES: 5282145246Sbrooks NEED1("icmptypes requires list of types"); 5283145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5284145246Sbrooks av++; ac--; 5285145246Sbrooks break; 528699475Sluigi 528798943Sluigi case TOK_IPTTL: 528898943Sluigi NEED1("ipttl requires TTL"); 5289116690Sluigi if (strpbrk(*av, "-,")) { 5290116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5291116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5292116690Sluigi } else 5293116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 529498943Sluigi ac--; av++; 529598943Sluigi break; 529698943Sluigi 529798943Sluigi case TOK_IPID: 5298116690Sluigi NEED1("ipid requires id"); 5299116690Sluigi if (strpbrk(*av, "-,")) { 5300116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5301116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5302116690Sluigi } else 5303116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 530498943Sluigi ac--; av++; 530598943Sluigi break; 530698943Sluigi 530798943Sluigi case TOK_IPLEN: 530898943Sluigi NEED1("iplen requires length"); 5309116690Sluigi if (strpbrk(*av, "-,")) { 5310116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5311116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5312116690Sluigi } else 5313116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 531498943Sluigi ac--; av++; 531598943Sluigi break; 531698943Sluigi 531798943Sluigi case TOK_IPVER: 531898943Sluigi NEED1("ipver requires version"); 531998943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 532098943Sluigi ac--; av++; 532198943Sluigi break; 532298943Sluigi 532399475Sluigi case TOK_IPPRECEDENCE: 532499475Sluigi NEED1("ipprecedence requires value"); 532599475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 532699475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 532799475Sluigi ac--; av++; 532899475Sluigi break; 532999475Sluigi 533098943Sluigi case TOK_IPOPTS: 533198943Sluigi NEED1("missing argument for ipoptions"); 5332101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 533398943Sluigi ac--; av++; 533498943Sluigi break; 533598943Sluigi 533699475Sluigi case TOK_IPTOS: 533799475Sluigi NEED1("missing argument for iptos"); 5338101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 533999475Sluigi ac--; av++; 534099475Sluigi break; 534199475Sluigi 534298943Sluigi case TOK_UID: 534398943Sluigi NEED1("uid requires argument"); 534498943Sluigi { 534598943Sluigi char *end; 534698943Sluigi uid_t uid; 534798943Sluigi struct passwd *pwd; 534898943Sluigi 534998943Sluigi cmd->opcode = O_UID; 535098943Sluigi uid = strtoul(*av, &end, 0); 535198943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 535298943Sluigi if (pwd == NULL) 535398943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5354106504Smaxim cmd32->d[0] = pwd->pw_uid; 5355135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 535698943Sluigi ac--; av++; 535798943Sluigi } 535898943Sluigi break; 535998943Sluigi 536098943Sluigi case TOK_GID: 536198943Sluigi NEED1("gid requires argument"); 536298943Sluigi { 536398943Sluigi char *end; 536498943Sluigi gid_t gid; 536598943Sluigi struct group *grp; 536698943Sluigi 536798943Sluigi cmd->opcode = O_GID; 536898943Sluigi gid = strtoul(*av, &end, 0); 536998943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 537098943Sluigi if (grp == NULL) 537198943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5372106504Smaxim cmd32->d[0] = grp->gr_gid; 5373135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 537498943Sluigi ac--; av++; 537598943Sluigi } 537698943Sluigi break; 537798943Sluigi 5378133600Scsjp case TOK_JAIL: 5379133600Scsjp NEED1("jail requires argument"); 5380133600Scsjp { 5381133600Scsjp char *end; 5382133600Scsjp int jid; 5383133600Scsjp 5384133600Scsjp cmd->opcode = O_JAIL; 5385133600Scsjp jid = (int)strtol(*av, &end, 0); 5386133600Scsjp if (jid < 0 || *end != '\0') 5387133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5388135554Scsjp cmd32->d[0] = (uint32_t)jid; 5389135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5390133600Scsjp ac--; av++; 5391133600Scsjp } 5392133600Scsjp break; 5393133600Scsjp 539498943Sluigi case TOK_ESTAB: 539598943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 539698943Sluigi break; 539798943Sluigi 539898943Sluigi case TOK_SETUP: 539998943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 540098943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 540198943Sluigi break; 540298943Sluigi 5403136075Sgreen case TOK_TCPDATALEN: 5404136075Sgreen NEED1("tcpdatalen requires length"); 5405136075Sgreen if (strpbrk(*av, "-,")) { 5406136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5407136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5408136075Sgreen } else 5409136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5410136075Sgreen strtoul(*av, NULL, 0)); 5411136075Sgreen ac--; av++; 5412136075Sgreen break; 5413136075Sgreen 541498943Sluigi case TOK_TCPOPTS: 541598943Sluigi NEED1("missing argument for tcpoptions"); 541698943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 541798943Sluigi ac--; av++; 541898943Sluigi break; 541998943Sluigi 542098943Sluigi case TOK_TCPSEQ: 542198943Sluigi case TOK_TCPACK: 542298943Sluigi NEED1("tcpseq/tcpack requires argument"); 542398943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 542498943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 542598943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 542698943Sluigi ac--; av++; 542798943Sluigi break; 542898943Sluigi 542998943Sluigi case TOK_TCPWIN: 543098943Sluigi NEED1("tcpwin requires length"); 543198943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 543298943Sluigi htons(strtoul(*av, NULL, 0))); 543398943Sluigi ac--; av++; 543498943Sluigi break; 543598943Sluigi 543698943Sluigi case TOK_TCPFLAGS: 543798943Sluigi NEED1("missing argument for tcpflags"); 543898943Sluigi cmd->opcode = O_TCPFLAGS; 543998943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 544098943Sluigi ac--; av++; 544198943Sluigi break; 544298943Sluigi 544398943Sluigi case TOK_KEEPSTATE: 5444101641Sluigi if (open_par) 5445101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5446101641Sluigi "of an or block"); 544799909Sluigi if (have_state) 5448101116Sluigi errx(EX_USAGE, "only one of keep-state " 544999909Sluigi "and limit is allowed"); 5450101116Sluigi have_state = cmd; 545198943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 545298943Sluigi break; 545398943Sluigi 5454159636Soleg case TOK_LIMIT: { 5455159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5456159636Soleg int val; 5457159636Soleg 5458101641Sluigi if (open_par) 5459159636Soleg errx(EX_USAGE, 5460159636Soleg "limit cannot be part of an or block"); 546199909Sluigi if (have_state) 5462168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5463159636Soleg "limit is allowed"); 5464101116Sluigi have_state = cmd; 546598943Sluigi 546698943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 546798943Sluigi cmd->opcode = O_LIMIT; 5468159636Soleg c->limit_mask = c->conn_limit = 0; 546998943Sluigi 5470159636Soleg while (ac > 0) { 5471159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 547298943Sluigi break; 547398943Sluigi c->limit_mask |= val; 547498943Sluigi ac--; av++; 547598943Sluigi } 5476159636Soleg 547798943Sluigi if (c->limit_mask == 0) 5478159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5479159636Soleg 5480159636Soleg GET_UINT_ARG(c->conn_limit, 1, 65534, TOK_LIMIT, 5481159636Soleg rule_options); 5482159636Soleg 548398943Sluigi ac--; av++; 548498943Sluigi break; 5485159636Soleg } 548698943Sluigi 5487102087Sluigi case TOK_PROTO: 5488102087Sluigi NEED1("missing protocol"); 5489145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5490102087Sluigi ac--; av++; 5491102098Sluigi } else 5492116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5493116438Smaxim *av); 5494102087Sluigi break; 5495106505Smaxim 5496102087Sluigi case TOK_SRCIP: 5497102087Sluigi NEED1("missing source IP"); 5498102087Sluigi if (add_srcip(cmd, *av)) { 5499102087Sluigi ac--; av++; 5500102087Sluigi } 5501102087Sluigi break; 5502102087Sluigi 5503102087Sluigi case TOK_DSTIP: 5504102087Sluigi NEED1("missing destination IP"); 5505102087Sluigi if (add_dstip(cmd, *av)) { 5506102087Sluigi ac--; av++; 5507102087Sluigi } 5508102087Sluigi break; 5509102087Sluigi 5510145246Sbrooks case TOK_SRCIP6: 5511145246Sbrooks NEED1("missing source IP6"); 5512145246Sbrooks if (add_srcip6(cmd, *av)) { 5513145246Sbrooks ac--; av++; 5514145246Sbrooks } 5515145246Sbrooks break; 5516145246Sbrooks 5517145246Sbrooks case TOK_DSTIP6: 5518145246Sbrooks NEED1("missing destination IP6"); 5519145246Sbrooks if (add_dstip6(cmd, *av)) { 5520145246Sbrooks ac--; av++; 5521145246Sbrooks } 5522145246Sbrooks break; 5523145246Sbrooks 5524102087Sluigi case TOK_SRCPORT: 5525102087Sluigi NEED1("missing source port"); 5526140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5527102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5528102087Sluigi ac--; av++; 5529102087Sluigi } else 5530102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5531102087Sluigi break; 5532102087Sluigi 5533102087Sluigi case TOK_DSTPORT: 5534102087Sluigi NEED1("missing destination port"); 5535140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5536102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5537102087Sluigi ac--; av++; 5538102087Sluigi } else 5539102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5540102087Sluigi *av); 5541102087Sluigi break; 5542102087Sluigi 5543102087Sluigi case TOK_MAC: 5544102087Sluigi if (add_mac(cmd, ac, av)) { 5545102087Sluigi ac -= 2; av += 2; 5546102087Sluigi } 5547102087Sluigi break; 5548102087Sluigi 5549102087Sluigi case TOK_MACTYPE: 5550102087Sluigi NEED1("missing mac type"); 5551102087Sluigi if (!add_mactype(cmd, ac, *av)) 5552116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5553102087Sluigi ac--; av++; 5554102087Sluigi break; 5555102087Sluigi 5556112250Scjc case TOK_VERREVPATH: 5557112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5558112250Scjc break; 5559116919Sluigi 5560128575Sandre case TOK_VERSRCREACH: 5561128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5562128575Sandre break; 5563128575Sandre 5564133387Sandre case TOK_ANTISPOOF: 5565133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5566133387Sandre break; 5567133387Sandre 5568117241Sluigi case TOK_IPSEC: 5569117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5570117241Sluigi break; 5571117241Sluigi 5572145246Sbrooks case TOK_IPV6: 5573145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5574145246Sbrooks break; 5575145246Sbrooks 5576146894Smlaier case TOK_IPV4: 5577146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5578146894Smlaier break; 5579146894Smlaier 5580145246Sbrooks case TOK_EXT6HDR: 5581145246Sbrooks fill_ext6hdr( cmd, *av ); 5582145246Sbrooks ac--; av++; 5583145246Sbrooks break; 5584145246Sbrooks 5585145246Sbrooks case TOK_FLOWID: 5586145246Sbrooks if (proto != IPPROTO_IPV6 ) 5587145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5588145246Sbrooks "only for ipv6 protocol\n"); 5589145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5590145246Sbrooks ac--; av++; 5591145246Sbrooks break; 5592145246Sbrooks 5593117469Sluigi case TOK_COMMENT: 5594117469Sluigi fill_comment(cmd, ac, av); 5595117469Sluigi av += ac; 5596117469Sluigi ac = 0; 5597117469Sluigi break; 5598117469Sluigi 5599158879Soleg case TOK_TAGGED: 5600159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5601158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5602159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5603159636Soleg " list: %s", *av); 5604158879Soleg } 5605159636Soleg else { 5606159636Soleg uint16_t tag; 5607159636Soleg 5608159636Soleg GET_UINT_ARG(tag, 1, 65534, TOK_TAGGED, 5609159636Soleg rule_options); 5610159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5611159636Soleg } 5612158879Soleg ac--; av++; 5613158879Soleg break; 5614158879Soleg 561598943Sluigi default: 561698943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 561798943Sluigi } 561898943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 561998943Sluigi prev = cmd; 562098943Sluigi cmd = next_cmd(cmd); 562198943Sluigi } 562298943Sluigi } 562398943Sluigi 562498943Sluigidone: 562598943Sluigi /* 562698943Sluigi * Now copy stuff into the rule. 562798943Sluigi * If we have a keep-state option, the first instruction 562898943Sluigi * must be a PROBE_STATE (which is generated here). 562998943Sluigi * If we have a LOG option, it was stored as the first command, 563098943Sluigi * and now must be moved to the top of the action part. 563198943Sluigi */ 563298943Sluigi dst = (ipfw_insn *)rule->cmd; 563398943Sluigi 563498943Sluigi /* 5635107289Sluigi * First thing to write into the command stream is the match probability. 5636107289Sluigi */ 5637107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5638107289Sluigi dst->opcode = O_PROB; 5639107289Sluigi dst->len = 2; 5640107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5641107289Sluigi dst += dst->len; 5642107289Sluigi } 5643107289Sluigi 5644107289Sluigi /* 564598943Sluigi * generate O_PROBE_STATE if necessary 564698943Sluigi */ 5647101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 564898943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 564998943Sluigi dst = next_cmd(dst); 565098943Sluigi } 5651158879Soleg 5652158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 565398943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 565498943Sluigi i = F_LEN(src); 565598943Sluigi 5656101116Sluigi switch (src->opcode) { 5657101116Sluigi case O_LOG: 5658101116Sluigi case O_KEEP_STATE: 5659101116Sluigi case O_LIMIT: 5660136071Sgreen case O_ALTQ: 5661158879Soleg case O_TAG: 5662101116Sluigi break; 5663101116Sluigi default: 5664117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 566598943Sluigi dst += i; 566698943Sluigi } 566798943Sluigi } 566898943Sluigi 566998943Sluigi /* 5670101116Sluigi * put back the have_state command as last opcode 5671101116Sluigi */ 5672101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5673101116Sluigi i = F_LEN(have_state); 5674117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5675101116Sluigi dst += i; 5676101116Sluigi } 5677101116Sluigi /* 567898943Sluigi * start action section 567998943Sluigi */ 568098943Sluigi rule->act_ofs = dst - rule->cmd; 568198943Sluigi 5682158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5683136071Sgreen if (have_log) { 5684136071Sgreen i = F_LEN(have_log); 5685136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 568698943Sluigi dst += i; 568798943Sluigi } 5688136071Sgreen if (have_altq) { 5689136071Sgreen i = F_LEN(have_altq); 5690136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5691136071Sgreen dst += i; 5692136071Sgreen } 5693158879Soleg if (have_tag) { 5694158879Soleg i = F_LEN(have_tag); 5695158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5696158879Soleg dst += i; 5697158879Soleg } 569898943Sluigi /* 569998943Sluigi * copy all other actions 570098943Sluigi */ 570198943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 570298943Sluigi i = F_LEN(src); 5703117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 570498943Sluigi dst += i; 570598943Sluigi } 570698943Sluigi 5707117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5708117469Sluigi i = (char *)dst - (char *)rule; 5709119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 571098943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 571198943Sluigi if (!do_quiet) 5712117469Sluigi show_ipfw(rule, 0, 0); 571398943Sluigi} 571498943Sluigi 571598943Sluigistatic void 5716117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 571798943Sluigi{ 5718170923Smaxim uint32_t arg, saved_arg; 571998943Sluigi int failed = EX_OK; 5720117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 5721170923Smaxim char const *errstr; 572298943Sluigi 572398943Sluigi av++; ac--; 572498943Sluigi 572598943Sluigi if (!ac) { 572698943Sluigi /* clear all entries */ 5727117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5728117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 572998943Sluigi if (!do_quiet) 5730117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5731117328Sluigi "Accounting cleared":"Logging counts reset"); 573298943Sluigi 573398943Sluigi return; 573498943Sluigi } 573598943Sluigi 573698943Sluigi while (ac) { 573798943Sluigi /* Rule number */ 573898943Sluigi if (isdigit(**av)) { 5739170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 5740170923Smaxim if (errstr) 5741170923Smaxim errx(EX_DATAERR, 5742170923Smaxim "invalid rule number %s\n", *av); 5743170923Smaxim saved_arg = arg; 5744170923Smaxim if (use_set) 5745170923Smaxim arg |= (1 << 24) | ((use_set - 1) << 16); 574698943Sluigi av++; 574798943Sluigi ac--; 5748170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 5749117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5750170923Smaxim saved_arg, name); 575198943Sluigi failed = EX_UNAVAILABLE; 575298943Sluigi } else if (!do_quiet) 5753170923Smaxim printf("Entry %d %s.\n", saved_arg, 5754117328Sluigi optname == IP_FW_ZERO ? 5755117328Sluigi "cleared" : "logging count reset"); 575698943Sluigi } else { 575798943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 575898943Sluigi } 575998943Sluigi } 576098943Sluigi if (failed != EX_OK) 576198943Sluigi exit(failed); 576298943Sluigi} 576398943Sluigi 576498943Sluigistatic void 5765117544Sluigiflush(int force) 576698943Sluigi{ 576798943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 576898943Sluigi 5769117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 577098943Sluigi int c; 577198943Sluigi 577298943Sluigi printf("Are you sure? [yn] "); 577398943Sluigi fflush(stdout); 577498943Sluigi do { 577598943Sluigi c = toupper(getc(stdin)); 577698943Sluigi while (c != '\n' && getc(stdin) != '\n') 577798943Sluigi if (feof(stdin)) 577898943Sluigi return; /* and do not flush */ 577998943Sluigi } while (c != 'Y' && c != 'N'); 578098943Sluigi printf("\n"); 578198943Sluigi if (c == 'N') /* user said no */ 578298943Sluigi return; 578398943Sluigi } 5784170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 5785170923Smaxim if (use_set) { 5786170923Smaxim uint32_t arg = ((use_set - 1) & 0xffff) | (1 << 24); 5787170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 5788170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 5789170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 579098943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 579198943Sluigi do_pipe ? "DUMMYNET" : "FW"); 579298943Sluigi if (!do_quiet) 579398943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 579498943Sluigi} 579598943Sluigi 5796117469Sluigi/* 5797117544Sluigi * Free a the (locally allocated) copy of command line arguments. 5798117469Sluigi */ 5799117544Sluigistatic void 5800117544Sluigifree_args(int ac, char **av) 5801117544Sluigi{ 5802117544Sluigi int i; 5803117544Sluigi 5804117544Sluigi for (i=0; i < ac; i++) 5805117544Sluigi free(av[i]); 5806117544Sluigi free(av); 5807117544Sluigi} 5808117544Sluigi 5809117544Sluigi/* 5810130281Sru * This one handles all table-related commands 5811130281Sru * ipfw table N add addr[/masklen] [value] 5812130281Sru * ipfw table N delete addr[/masklen] 5813130281Sru * ipfw table N flush 5814130281Sru * ipfw table N list 5815130281Sru */ 5816130281Srustatic void 5817130281Srutable_handler(int ac, char *av[]) 5818130281Sru{ 5819130281Sru ipfw_table_entry ent; 5820130281Sru ipfw_table *tbl; 5821130281Sru int do_add; 5822130281Sru char *p; 5823130281Sru socklen_t l; 5824130281Sru uint32_t a; 5825130281Sru 5826130281Sru ac--; av++; 5827130281Sru if (ac && isdigit(**av)) { 5828130281Sru ent.tbl = atoi(*av); 5829130281Sru ac--; av++; 5830130281Sru } else 5831130281Sru errx(EX_USAGE, "table number required"); 5832130281Sru NEED1("table needs command"); 5833140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5834140271Sbrooks _substrcmp(*av, "delete") == 0) { 5835130281Sru do_add = **av == 'a'; 5836130281Sru ac--; av++; 5837130281Sru if (!ac) 5838130281Sru errx(EX_USAGE, "IP address required"); 5839130281Sru p = strchr(*av, '/'); 5840130281Sru if (p) { 5841130281Sru *p++ = '\0'; 5842130281Sru ent.masklen = atoi(p); 5843130281Sru if (ent.masklen > 32) 5844130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5845130281Sru } else 5846130281Sru ent.masklen = 32; 5847130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5848130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5849130281Sru ac--; av++; 5850161424Sjulian if (do_add && ac) { 5851161424Sjulian unsigned int tval; 5852161424Sjulian /* isdigit is a bit of a hack here.. */ 5853161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5854161424Sjulian ent.value = strtoul(*av, NULL, 0); 5855161424Sjulian } else { 5856161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5857161424Sjulian /* The value must be stored in host order * 5858161424Sjulian * so that the values < 65k can be distinguished */ 5859161424Sjulian ent.value = ntohl(tval); 5860161424Sjulian } else { 5861161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5862161424Sjulian } 5863161424Sjulian } 5864161424Sjulian } else 5865130281Sru ent.value = 0; 5866130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5867157335Sjulian &ent, sizeof(ent)) < 0) { 5868155639Sjulian /* If running silent, don't bomb out on these errors. */ 5869155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5870155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5871155639Sjulian do_add ? "ADD" : "DEL"); 5872155639Sjulian /* In silent mode, react to a failed add by deleting */ 5873157332Sjulian if (do_add) { 5874155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5875155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5876155639Sjulian &ent, sizeof(ent)) < 0) 5877155639Sjulian err(EX_OSERR, 5878155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5879157332Sjulian } 5880157335Sjulian } 5881140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5882130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 5883130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5884140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5885130281Sru a = ent.tbl; 5886130281Sru l = sizeof(a); 5887130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5888130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5889130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 5890130281Sru tbl = malloc(l); 5891130281Sru if (tbl == NULL) 5892130281Sru err(EX_OSERR, "malloc"); 5893130281Sru tbl->tbl = ent.tbl; 5894130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 5895130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 5896130281Sru for (a = 0; a < tbl->cnt; a++) { 5897161424Sjulian /* Heuristic to print it the right way */ 5898161456Sjulian /* values < 64k are printed as numbers */ 5899161424Sjulian unsigned int tval; 5900161424Sjulian tval = tbl->ent[a].value; 5901161424Sjulian if (tval > 0xffff) { 5902161424Sjulian char tbuf[128]; 5903161456Sjulian strncpy(tbuf, inet_ntoa(*(struct in_addr *) 5904161456Sjulian &tbl->ent[a].addr), 127); 5905161424Sjulian /* inet_ntoa expects host order */ 5906161424Sjulian tval = htonl(tval); 5907161456Sjulian printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 5908161456Sjulian inet_ntoa(*(struct in_addr *)&tval)); 5909161424Sjulian } else { 5910161424Sjulian printf("%s/%u %u\n", 5911161456Sjulian inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 5912161456Sjulian tbl->ent[a].masklen, tbl->ent[a].value); 5913161424Sjulian } 5914130281Sru } 5915130281Sru } else 5916130281Sru errx(EX_USAGE, "invalid table command %s", *av); 5917130281Sru} 5918130281Sru 5919165648Spisostatic void 5920165648Spisoshow_nat(int ac, char **av) { 5921165648Spiso struct cfg_nat *n; 5922165648Spiso struct cfg_redir *e; 5923165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 5924165648Spiso int nat_cnt, r; 5925165648Spiso uint8_t *data, *p; 5926165648Spiso char **lav, *endptr; 5927165648Spiso 5928165648Spiso do_rule = 0; 5929165648Spiso nalloc = 1024; 5930165648Spiso size = 0; 5931165648Spiso data = NULL; 5932165648Spiso ac--; av++; 5933165648Spiso 5934165648Spiso /* Parse parameters. */ 5935165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 5936165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 5937165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 5938165648Spiso continue; 5939165648Spiso } 5940165648Spiso /* Convert command line rule #. */ 5941165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 5942165648Spiso if (*endptr == '-') 5943165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 5944165648Spiso if (lrule == 0) 5945165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 5946165648Spiso do_rule = 1; 5947165648Spiso } 5948165648Spiso 5949165648Spiso nbytes = nalloc; 5950165648Spiso while (nbytes >= nalloc) { 5951165648Spiso nalloc = nalloc * 2; 5952165648Spiso nbytes = nalloc; 5953165648Spiso if ((data = realloc(data, nbytes)) == NULL) 5954165648Spiso err(EX_OSERR, "realloc"); 5955165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 5956165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 5957165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 5958165648Spiso } 5959165648Spiso if (nbytes == 0) 5960165648Spiso exit(0); 5961165648Spiso if (do_cfg) { 5962165648Spiso nat_cnt = *((int *)data); 5963165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 5964165648Spiso n = (struct cfg_nat *)&data[i]; 5965165648Spiso if (do_rule) { 5966165648Spiso if (!(frule <= n->id && lrule >= n->id)) 5967165648Spiso continue; 5968165648Spiso } 5969165648Spiso print_nat_config(&data[i]); 5970165648Spiso i += sizeof(struct cfg_nat); 5971165648Spiso e = (struct cfg_redir *)&data[i]; 5972165648Spiso if (e->mode == REDIR_ADDR || e->mode == REDIR_PORT || 5973165648Spiso e->mode == REDIR_PROTO) 5974165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 5975165648Spiso sizeof(struct cfg_spool); 5976165648Spiso } 5977165648Spiso } else { 5978165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 5979165648Spiso p = &data[i]; 5980165648Spiso if (p == data + nbytes) 5981165648Spiso break; 5982165648Spiso bcopy(p, &r, sizeof(int)); 5983165648Spiso if (do_rule) { 5984165648Spiso if (!(frule <= r && lrule >= r)) 5985165648Spiso continue; 5986165648Spiso } 5987165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 5988165648Spiso } 5989165648Spiso } 5990165648Spiso} 5991165648Spiso 5992130281Sru/* 5993117544Sluigi * Called with the arguments (excluding program name). 5994117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 5995117544Sluigi */ 599698943Sluigistatic int 5997117328Sluigiipfw_main(int oldac, char **oldav) 599898943Sluigi{ 5999117469Sluigi int ch, ac, save_ac; 6000170923Smaxim const char *errstr; 6001117469Sluigi char **av, **save_av; 6002117469Sluigi int do_acct = 0; /* Show packet/byte count */ 6003117469Sluigi 6004117469Sluigi#define WHITESP " \t\f\v\n\r" 6005117544Sluigi if (oldac == 0) 6006117544Sluigi return 1; 6007117544Sluigi else if (oldac == 1) { 6008117328Sluigi /* 6009117328Sluigi * If we are called with a single string, try to split it into 6010117328Sluigi * arguments for subsequent parsing. 6011117328Sluigi * But first, remove spaces after a ',', by copying the string 6012117328Sluigi * in-place. 6013117328Sluigi */ 6014117469Sluigi char *arg = oldav[0]; /* The string... */ 6015117328Sluigi int l = strlen(arg); 6016117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 6017117328Sluigi int i, j; 6018117469Sluigi for (i = j = 0; i < l; i++) { 6019117469Sluigi if (arg[i] == '#') /* comment marker */ 6020117469Sluigi break; 6021117328Sluigi if (copy) { 6022117328Sluigi arg[j++] = arg[i]; 6023117469Sluigi copy = !index("," WHITESP, arg[i]); 6024117328Sluigi } else { 6025117469Sluigi copy = !index(WHITESP, arg[i]); 6026117328Sluigi if (copy) 6027117328Sluigi arg[j++] = arg[i]; 6028117328Sluigi } 6029117469Sluigi } 6030117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 6031117328Sluigi j--; 6032117328Sluigi l = j; /* the new argument length */ 6033117328Sluigi arg[j++] = '\0'; 6034117469Sluigi if (l == 0) /* empty string! */ 6035117544Sluigi return 1; 6036117328Sluigi 6037117328Sluigi /* 6038117328Sluigi * First, count number of arguments. Because of the previous 6039117469Sluigi * processing, this is just the number of blanks plus 1. 6040117328Sluigi */ 6041117469Sluigi for (i = 0, ac = 1; i < l; i++) 6042117469Sluigi if (index(WHITESP, arg[i]) != NULL) 6043117328Sluigi ac++; 6044117328Sluigi 6045117328Sluigi av = calloc(ac, sizeof(char *)); 6046117328Sluigi 6047117328Sluigi /* 6048117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 6049117328Sluigi * j is the initial character, i is the one past the end. 6050117328Sluigi */ 6051117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 6052117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 6053117328Sluigi if (i == l-1) 6054117328Sluigi i++; 6055117328Sluigi av[ac] = calloc(i-j+1, 1); 6056117328Sluigi bcopy(arg+j, av[ac], i-j); 6057117328Sluigi ac++; 6058117328Sluigi j = i + 1; 6059117328Sluigi } 6060117328Sluigi } else { 6061117328Sluigi /* 6062117328Sluigi * If an argument ends with ',' join with the next one. 6063117328Sluigi */ 6064117328Sluigi int first, i, l; 6065117328Sluigi 6066117328Sluigi av = calloc(oldac, sizeof(char *)); 6067117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 6068117328Sluigi char *arg = oldav[i]; 6069117328Sluigi int k = strlen(arg); 6070117328Sluigi 6071117328Sluigi l += k; 6072117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 6073117328Sluigi /* Time to copy. */ 6074117328Sluigi av[ac] = calloc(l+1, 1); 6075117328Sluigi for (l=0; first <= i; first++) { 6076117328Sluigi strcat(av[ac]+l, oldav[first]); 6077117328Sluigi l += strlen(oldav[first]); 6078117328Sluigi } 6079117328Sluigi ac++; 6080117328Sluigi l = 0; 6081117328Sluigi first = i+1; 6082117328Sluigi } 6083117328Sluigi } 6084117328Sluigi } 6085117328Sluigi 608698943Sluigi /* Set the force flag for non-interactive processes */ 6087123804Smaxim if (!do_force) 6088123804Smaxim do_force = !isatty(STDIN_FILENO); 608998943Sluigi 6090117469Sluigi /* Save arguments for final freeing of memory. */ 6091117469Sluigi save_ac = ac; 6092117469Sluigi save_av = av; 6093117469Sluigi 6094117469Sluigi optind = optreset = 0; 6095123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 609698943Sluigi switch (ch) { 609798943Sluigi case 'a': 609898943Sluigi do_acct = 1; 609998943Sluigi break; 6100117328Sluigi 6101123495Sluigi case 'b': 6102123495Sluigi comment_only = 1; 6103123495Sluigi do_compact = 1; 6104123495Sluigi break; 6105123495Sluigi 6106102098Sluigi case 'c': 6107102098Sluigi do_compact = 1; 6108102098Sluigi break; 6109117328Sluigi 611098943Sluigi case 'd': 611198943Sluigi do_dynamic = 1; 611298943Sluigi break; 6113117328Sluigi 611498943Sluigi case 'e': 611598943Sluigi do_expired = 1; 611698943Sluigi break; 6117117328Sluigi 611898943Sluigi case 'f': 611998943Sluigi do_force = 1; 612098943Sluigi break; 6121117328Sluigi 6122117328Sluigi case 'h': /* help */ 6123117544Sluigi free_args(save_ac, save_av); 6124117328Sluigi help(); 6125117328Sluigi break; /* NOTREACHED */ 6126117328Sluigi 6127117328Sluigi case 'n': 6128117328Sluigi test_only = 1; 6129117328Sluigi break; 6130117328Sluigi 613198943Sluigi case 'N': 613298943Sluigi do_resolv = 1; 613398943Sluigi break; 6134117328Sluigi 613598943Sluigi case 'q': 613698943Sluigi do_quiet = 1; 613798943Sluigi break; 6138117328Sluigi 6139117328Sluigi case 's': /* sort */ 6140117328Sluigi do_sort = atoi(optarg); 6141117328Sluigi break; 6142117328Sluigi 6143101628Sluigi case 'S': 6144101628Sluigi show_sets = 1; 6145101628Sluigi break; 6146117328Sluigi 614798943Sluigi case 't': 614898943Sluigi do_time = 1; 614998943Sluigi break; 6150117328Sluigi 6151117472Sluigi case 'T': 6152117472Sluigi do_time = 2; /* numeric timestamp */ 6153117472Sluigi break; 6154117472Sluigi 615598943Sluigi case 'v': /* verbose */ 6156117328Sluigi verbose = 1; 615798943Sluigi break; 6158117328Sluigi 615998943Sluigi default: 6160117544Sluigi free_args(save_ac, save_av); 6161117544Sluigi return 1; 616298943Sluigi } 616398943Sluigi 616498943Sluigi ac -= optind; 616598943Sluigi av += optind; 616698943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 616798943Sluigi 616898943Sluigi /* 6169117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 6170117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 6171117544Sluigi * In case, swap first and second argument to get the normal form. 6172117544Sluigi */ 6173117544Sluigi if (ac > 1 && isdigit(*av[0])) { 6174117544Sluigi char *p = av[0]; 6175117544Sluigi 6176117544Sluigi av[0] = av[1]; 6177117544Sluigi av[1] = p; 6178117544Sluigi } 6179117544Sluigi 6180117544Sluigi /* 6181165648Spiso * Optional: pipe, queue or nat. 618298943Sluigi */ 6183165648Spiso do_nat = 0; 6184117821Smaxim do_pipe = 0; 6185165648Spiso if (!strncmp(*av, "nat", strlen(*av))) 6186165648Spiso do_nat = 1; 6187165648Spiso else if (!strncmp(*av, "pipe", strlen(*av))) 618898943Sluigi do_pipe = 1; 6189140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 619098943Sluigi do_pipe = 2; 6191170923Smaxim else if (!strncmp(*av, "set", strlen(*av))) { 6192170923Smaxim if (ac > 1 && isdigit(av[1][0])) { 6193170923Smaxim use_set = strtonum(av[1], 0, RESVD_SET, &errstr); 6194170923Smaxim if (errstr) 6195170923Smaxim errx(EX_DATAERR, 6196170923Smaxim "invalid set number %s\n", av[1]); 6197170923Smaxim ac -= 2; av += 2; use_set++; 6198170923Smaxim } 6199170923Smaxim } 6200170923Smaxim 6201165648Spiso if (do_pipe || do_nat) { 620298943Sluigi ac--; 620398943Sluigi av++; 620498943Sluigi } 620598943Sluigi NEED1("missing command"); 620698943Sluigi 620798943Sluigi /* 6208165648Spiso * For pipes, queues and nats we normally say 'nat|pipe NN config' 6209165648Spiso * but the code is easier to parse as 'nat|pipe config NN' 621098943Sluigi * so we swap the two arguments. 621198943Sluigi */ 6212165648Spiso if ((do_pipe || do_nat) && ac > 1 && isdigit(*av[0])) { 621398943Sluigi char *p = av[0]; 6214117544Sluigi 621598943Sluigi av[0] = av[1]; 621698943Sluigi av[1] = p; 621798943Sluigi } 6218117328Sluigi 6219170923Smaxim int try_next = 0; 6220170923Smaxim if (use_set == 0) { 6221170923Smaxim if (_substrcmp(*av, "add") == 0) 6222170923Smaxim add(ac, av); 6223170923Smaxim else if (do_nat && _substrcmp(*av, "show") == 0) 6224170923Smaxim show_nat(ac, av); 6225170923Smaxim else if (do_pipe && _substrcmp(*av, "config") == 0) 6226170923Smaxim config_pipe(ac, av); 6227170923Smaxim else if (do_nat && _substrcmp(*av, "config") == 0) 6228170923Smaxim config_nat(ac, av); 6229170923Smaxim else if (_substrcmp(*av, "set") == 0) 6230170923Smaxim sets_handler(ac, av); 6231170923Smaxim else if (_substrcmp(*av, "table") == 0) 6232170923Smaxim table_handler(ac, av); 6233170923Smaxim else if (_substrcmp(*av, "enable") == 0) 6234170923Smaxim sysctl_handler(ac, av, 1); 6235170923Smaxim else if (_substrcmp(*av, "disable") == 0) 6236170923Smaxim sysctl_handler(ac, av, 0); 6237170923Smaxim else 6238170923Smaxim try_next = 1; 6239170923Smaxim } 6240117469Sluigi 6241170923Smaxim if (use_set || try_next) { 6242170923Smaxim if (_substrcmp(*av, "delete") == 0) 6243170923Smaxim delete(ac, av); 6244170923Smaxim else if (_substrcmp(*av, "flush") == 0) 6245170923Smaxim flush(do_force); 6246170923Smaxim else if (_substrcmp(*av, "zero") == 0) 6247170923Smaxim zero(ac, av, IP_FW_ZERO); 6248170923Smaxim else if (_substrcmp(*av, "resetlog") == 0) 6249170923Smaxim zero(ac, av, IP_FW_RESETLOG); 6250170923Smaxim else if (_substrcmp(*av, "print") == 0 || 6251170923Smaxim _substrcmp(*av, "list") == 0) 6252170923Smaxim list(ac, av, do_acct); 6253170923Smaxim else if (_substrcmp(*av, "show") == 0) 6254170923Smaxim list(ac, av, 1 /* show counters */); 6255170923Smaxim else 6256170923Smaxim errx(EX_USAGE, "bad command `%s'", *av); 6257170923Smaxim } 6258170923Smaxim 6259117469Sluigi /* Free memory allocated in the argument parsing. */ 6260117544Sluigi free_args(save_ac, save_av); 626198943Sluigi return 0; 626298943Sluigi} 626398943Sluigi 626498943Sluigi 626598943Sluigistatic void 6266106505Smaximipfw_readfile(int ac, char *av[]) 626798943Sluigi{ 626898943Sluigi#define MAX_ARGS 32 626998943Sluigi char buf[BUFSIZ]; 6270117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 6271117469Sluigi int c, lineno=0; 627298943Sluigi FILE *f = NULL; 627398943Sluigi pid_t preproc = 0; 627498943Sluigi 6275117469Sluigi filename = av[ac-1]; 6276117469Sluigi 6277123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 627898943Sluigi switch(c) { 6279117469Sluigi case 'c': 6280117469Sluigi do_compact = 1; 6281117469Sluigi break; 6282117469Sluigi 6283123804Smaxim case 'f': 6284123804Smaxim do_force = 1; 6285123804Smaxim break; 6286123804Smaxim 6287117469Sluigi case 'N': 6288117469Sluigi do_resolv = 1; 6289117469Sluigi break; 6290117469Sluigi 6291117328Sluigi case 'n': 6292117328Sluigi test_only = 1; 6293117328Sluigi break; 6294117328Sluigi 629598943Sluigi case 'p': 629698943Sluigi cmd = optarg; 6297117469Sluigi /* 6298117469Sluigi * Skip previous args and delete last one, so we 6299117469Sluigi * pass all but the last argument to the preprocessor 6300117469Sluigi * via av[optind-1] 6301117469Sluigi */ 6302117469Sluigi av += optind - 1; 6303117469Sluigi ac -= optind - 1; 6304162773Smaxim if (ac < 2) 6305162773Smaxim errx(EX_USAGE, "no filename argument"); 6306117469Sluigi av[ac-1] = NULL; 6307117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 630898943Sluigi break; 630998943Sluigi 631098943Sluigi case 'q': 6311117469Sluigi do_quiet = 1; 631298943Sluigi break; 631398943Sluigi 6314117469Sluigi case 'S': 6315117469Sluigi show_sets = 1; 6316117469Sluigi break; 6317117469Sluigi 631898943Sluigi default: 631998943Sluigi errx(EX_USAGE, "bad arguments, for usage" 632098943Sluigi " summary ``ipfw''"); 632198943Sluigi } 632298943Sluigi 6323117469Sluigi if (cmd != NULL) 6324108231Skbyanc break; 6325108231Skbyanc } 6326108231Skbyanc 6327117469Sluigi if (cmd == NULL && ac != optind + 1) { 6328117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 6329117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 6330108231Skbyanc } 6331108231Skbyanc 6332117469Sluigi if ((f = fopen(filename, "r")) == NULL) 6333117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 633498943Sluigi 6335117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 633698943Sluigi int pipedes[2]; 633798943Sluigi 633898943Sluigi if (pipe(pipedes) == -1) 633998943Sluigi err(EX_OSERR, "cannot create pipe"); 634098943Sluigi 6341117469Sluigi preproc = fork(); 6342117469Sluigi if (preproc == -1) 634398943Sluigi err(EX_OSERR, "cannot fork"); 634498943Sluigi 6345117577Sluigi if (preproc == 0) { 6346117469Sluigi /* 6347117469Sluigi * Child, will run the preprocessor with the 6348117469Sluigi * file on stdin and the pipe on stdout. 6349117469Sluigi */ 635098943Sluigi if (dup2(fileno(f), 0) == -1 635198943Sluigi || dup2(pipedes[1], 1) == -1) 635298943Sluigi err(EX_OSERR, "dup2()"); 635398943Sluigi fclose(f); 635498943Sluigi close(pipedes[1]); 635598943Sluigi close(pipedes[0]); 6356117469Sluigi execvp(cmd, av); 635798943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 6358117469Sluigi } else { /* parent, will reopen f as the pipe */ 635998943Sluigi fclose(f); 636098943Sluigi close(pipedes[1]); 636198943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 636298943Sluigi int savederrno = errno; 636398943Sluigi 636498943Sluigi (void)kill(preproc, SIGTERM); 636598943Sluigi errno = savederrno; 636698943Sluigi err(EX_OSERR, "fdopen()"); 636798943Sluigi } 636898943Sluigi } 636998943Sluigi } 637098943Sluigi 6371117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 6372117469Sluigi char linename[10]; 6373117469Sluigi char *args[1]; 6374117469Sluigi 637598943Sluigi lineno++; 637698943Sluigi sprintf(linename, "Line %d", lineno); 6377117328Sluigi setprogname(linename); /* XXX */ 6378117469Sluigi args[0] = buf; 6379117469Sluigi ipfw_main(1, args); 638098943Sluigi } 638198943Sluigi fclose(f); 6382117469Sluigi if (cmd != NULL) { 6383117469Sluigi int status; 6384117469Sluigi 638598943Sluigi if (waitpid(preproc, &status, 0) == -1) 638698943Sluigi errx(EX_OSERR, "waitpid()"); 638798943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 638898943Sluigi errx(EX_UNAVAILABLE, 638998943Sluigi "preprocessor exited with status %d", 639098943Sluigi WEXITSTATUS(status)); 639198943Sluigi else if (WIFSIGNALED(status)) 639298943Sluigi errx(EX_UNAVAILABLE, 639398943Sluigi "preprocessor exited with signal %d", 639498943Sluigi WTERMSIG(status)); 639598943Sluigi } 639698943Sluigi} 639798943Sluigi 639898943Sluigiint 639998943Sluigimain(int ac, char *av[]) 640098943Sluigi{ 640198943Sluigi /* 640298943Sluigi * If the last argument is an absolute pathname, interpret it 640398943Sluigi * as a file to be preprocessed. 640498943Sluigi */ 640598943Sluigi 640698943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 640798943Sluigi ipfw_readfile(ac, av); 6408117544Sluigi else { 6409117544Sluigi if (ipfw_main(ac-1, av+1)) 6410117544Sluigi show_usage(); 6411117544Sluigi } 641298943Sluigi return EX_OK; 641398943Sluigi} 6414