ipfw2.c revision 176517
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 176517 2008-02-24 15:37:45Z piso $ 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 50175659Srwatson#define IPFW_INTERNAL /* Access to protected structures in ip_fw.h. */ 51175659Srwatson 52169424Smaxim#include <net/ethernet.h> 5398943Sluigi#include <net/if.h> 54165648Spiso#include <net/if_dl.h> 55136071Sgreen#include <net/pfvar.h> 56145246Sbrooks#include <net/route.h> /* def. of struct route */ 5798943Sluigi#include <netinet/in.h> 5898943Sluigi#include <netinet/in_systm.h> 5998943Sluigi#include <netinet/ip.h> 6098943Sluigi#include <netinet/ip_icmp.h> 61145246Sbrooks#include <netinet/icmp6.h> 6298943Sluigi#include <netinet/ip_fw.h> 6398943Sluigi#include <netinet/ip_dummynet.h> 6498943Sluigi#include <netinet/tcp.h> 6598943Sluigi#include <arpa/inet.h> 66165648Spiso#include <alias.h> 6798943Sluigi 68117328Sluigiint 69176391Sjulian do_value_as_ip, /* show table value as IP */ 7098943Sluigi do_resolv, /* Would try to resolve all */ 7198943Sluigi do_time, /* Show time stamps */ 7298943Sluigi do_quiet, /* Be quiet in add and flush */ 7398943Sluigi do_pipe, /* this cmd refers to a pipe */ 74165648Spiso do_nat, /* Nat configuration. */ 7598943Sluigi do_sort, /* field to sort results (0 = no) */ 7698943Sluigi do_dynamic, /* display dynamic rules */ 7798943Sluigi do_expired, /* display expired dynamic rules */ 78102098Sluigi do_compact, /* show rules in compact mode */ 79123804Smaxim do_force, /* do not ask for confirmation */ 80170923Smaxim use_set, /* work with specified set number */ 81101628Sluigi show_sets, /* display rule sets */ 82117328Sluigi test_only, /* only check syntax */ 83123495Sluigi comment_only, /* only print action and comment */ 8498943Sluigi verbose; 8598943Sluigi 8698943Sluigi#define IP_MASK_ALL 0xffffffff 87130013Scsjp/* 88130013Scsjp * the following macro returns an error message if we run out of 89130013Scsjp * arguments. 90130013Scsjp */ 91130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 9298943Sluigi 93159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 94159636Soleg if (!ac) \ 95159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 96159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 97159636Soleg arg = IP_FW_TABLEARG; \ 98159636Soleg break; \ 99159636Soleg } \ 100159636Soleg \ 101159636Soleg { \ 102159636Soleg long val; \ 103159636Soleg char *end; \ 104159636Soleg \ 105159636Soleg val = strtol(*av, &end, 10); \ 106159636Soleg \ 107159636Soleg if (!isdigit(**av) || *end != '\0' || (val == 0 && errno == EINVAL)) \ 108159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 109159636Soleg match_value(s_x, tok), *av); \ 110159636Soleg \ 111159636Soleg if (errno == ERANGE || val < min || val > max) \ 112159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 113159636Soleg match_value(s_x, tok), min, max, *av); \ 114159636Soleg \ 115159636Soleg if (val == IP_FW_TABLEARG) \ 116159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 117159636Soleg match_value(s_x, tok), *av); \ 118159636Soleg arg = val; \ 119159636Soleg } \ 120158879Soleg} while (0) 121158879Soleg 122159636Soleg#define PRINT_UINT_ARG(str, arg) do { \ 123159636Soleg if (str != NULL) \ 124159636Soleg printf("%s",str); \ 125159636Soleg if (arg == IP_FW_TABLEARG) \ 126159636Soleg printf("tablearg"); \ 127159636Soleg else \ 128159636Soleg printf("%u", (uint32_t)arg); \ 129159636Soleg} while (0) 130159636Soleg 13198943Sluigi/* 132117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 133117328Sluigi * various places in the parser. Entries are stored in arrays, 134117328Sluigi * with an entry with s=NULL as terminator. 135117328Sluigi * The search routines are match_token() and match_value(). 136117328Sluigi * Often, an element with x=0 contains an error string. 13798943Sluigi * 13898943Sluigi */ 13998943Sluigistruct _s_x { 140117469Sluigi char const *s; 14198943Sluigi int x; 14298943Sluigi}; 14398943Sluigi 14498943Sluigistatic struct _s_x f_tcpflags[] = { 14598943Sluigi { "syn", TH_SYN }, 14698943Sluigi { "fin", TH_FIN }, 14798943Sluigi { "ack", TH_ACK }, 14898943Sluigi { "psh", TH_PUSH }, 14998943Sluigi { "rst", TH_RST }, 15098943Sluigi { "urg", TH_URG }, 15198943Sluigi { "tcp flag", 0 }, 15298943Sluigi { NULL, 0 } 15398943Sluigi}; 15498943Sluigi 15598943Sluigistatic struct _s_x f_tcpopts[] = { 15698943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 15798943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 15898943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 15998943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 16098943Sluigi { "ts", IP_FW_TCPOPT_TS }, 16198943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 16298943Sluigi { "cc", IP_FW_TCPOPT_CC }, 16398943Sluigi { "tcp option", 0 }, 16498943Sluigi { NULL, 0 } 16598943Sluigi}; 16698943Sluigi 16798943Sluigi/* 16898943Sluigi * IP options span the range 0 to 255 so we need to remap them 16998943Sluigi * (though in fact only the low 5 bits are significant). 17098943Sluigi */ 17198943Sluigistatic struct _s_x f_ipopts[] = { 17298943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 17398943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 17498943Sluigi { "rr", IP_FW_IPOPT_RR}, 17598943Sluigi { "ts", IP_FW_IPOPT_TS}, 17698943Sluigi { "ip option", 0 }, 17798943Sluigi { NULL, 0 } 17898943Sluigi}; 17998943Sluigi 18098943Sluigistatic struct _s_x f_iptos[] = { 18198943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 18298943Sluigi { "throughput", IPTOS_THROUGHPUT}, 18398943Sluigi { "reliability", IPTOS_RELIABILITY}, 18498943Sluigi { "mincost", IPTOS_MINCOST}, 185172801Srpaulo { "congestion", IPTOS_ECN_CE}, 186172801Srpaulo { "ecntransport", IPTOS_ECN_ECT0}, 18798943Sluigi { "ip tos option", 0}, 18898943Sluigi { NULL, 0 } 18998943Sluigi}; 19098943Sluigi 19198943Sluigistatic struct _s_x limit_masks[] = { 19298943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 19398943Sluigi {"src-addr", DYN_SRC_ADDR}, 19498943Sluigi {"src-port", DYN_SRC_PORT}, 19598943Sluigi {"dst-addr", DYN_DST_ADDR}, 19698943Sluigi {"dst-port", DYN_DST_PORT}, 19798943Sluigi {NULL, 0} 19898943Sluigi}; 19998943Sluigi 20098943Sluigi/* 20198943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 20298943Sluigi * This is only used in this code. 20398943Sluigi */ 20498943Sluigi#define IPPROTO_ETHERTYPE 0x1000 20598943Sluigistatic struct _s_x ether_types[] = { 20698943Sluigi /* 20798943Sluigi * Note, we cannot use "-:&/" in the names because they are field 20898943Sluigi * separators in the type specifications. Also, we use s = NULL as 20998943Sluigi * end-delimiter, because a type of 0 can be legal. 21098943Sluigi */ 21198943Sluigi { "ip", 0x0800 }, 21298943Sluigi { "ipv4", 0x0800 }, 21398943Sluigi { "ipv6", 0x86dd }, 21498943Sluigi { "arp", 0x0806 }, 21598943Sluigi { "rarp", 0x8035 }, 21698943Sluigi { "vlan", 0x8100 }, 21798943Sluigi { "loop", 0x9000 }, 21898943Sluigi { "trail", 0x1000 }, 21998943Sluigi { "at", 0x809b }, 22098943Sluigi { "atalk", 0x809b }, 22198943Sluigi { "aarp", 0x80f3 }, 22298943Sluigi { "pppoe_disc", 0x8863 }, 22398943Sluigi { "pppoe_sess", 0x8864 }, 22498943Sluigi { "ipx_8022", 0x00E0 }, 22598943Sluigi { "ipx_8023", 0x0000 }, 22698943Sluigi { "ipx_ii", 0x8137 }, 22798943Sluigi { "ipx_snap", 0x8137 }, 22898943Sluigi { "ipx", 0x8137 }, 22998943Sluigi { "ns", 0x0600 }, 23098943Sluigi { NULL, 0 } 23198943Sluigi}; 23298943Sluigi 23398943Sluigistatic void show_usage(void); 23498943Sluigi 23598943Sluigienum tokens { 23698943Sluigi TOK_NULL=0, 23798943Sluigi 23898943Sluigi TOK_OR, 23998943Sluigi TOK_NOT, 240101641Sluigi TOK_STARTBRACE, 241101641Sluigi TOK_ENDBRACE, 24298943Sluigi 24398943Sluigi TOK_ACCEPT, 24498943Sluigi TOK_COUNT, 24598943Sluigi TOK_PIPE, 24698943Sluigi TOK_QUEUE, 24798943Sluigi TOK_DIVERT, 24898943Sluigi TOK_TEE, 249141351Sglebius TOK_NETGRAPH, 250141351Sglebius TOK_NGTEE, 25198943Sluigi TOK_FORWARD, 25298943Sluigi TOK_SKIPTO, 25398943Sluigi TOK_DENY, 25498943Sluigi TOK_REJECT, 25598943Sluigi TOK_RESET, 25698943Sluigi TOK_UNREACH, 25798943Sluigi TOK_CHECKSTATE, 258165648Spiso TOK_NAT, 25998943Sluigi 260136071Sgreen TOK_ALTQ, 261136071Sgreen TOK_LOG, 262158879Soleg TOK_TAG, 263158879Soleg TOK_UNTAG, 264136071Sgreen 265158879Soleg TOK_TAGGED, 26698943Sluigi TOK_UID, 26798943Sluigi TOK_GID, 268133600Scsjp TOK_JAIL, 26998943Sluigi TOK_IN, 27098943Sluigi TOK_LIMIT, 27198943Sluigi TOK_KEEPSTATE, 27298943Sluigi TOK_LAYER2, 27398943Sluigi TOK_OUT, 274136073Sgreen TOK_DIVERTED, 275136073Sgreen TOK_DIVERTEDLOOPBACK, 276136073Sgreen TOK_DIVERTEDOUTPUT, 27798943Sluigi TOK_XMIT, 27898943Sluigi TOK_RECV, 27998943Sluigi TOK_VIA, 28098943Sluigi TOK_FRAG, 28198943Sluigi TOK_IPOPTS, 28298943Sluigi TOK_IPLEN, 28398943Sluigi TOK_IPID, 28498943Sluigi TOK_IPPRECEDENCE, 28598943Sluigi TOK_IPTOS, 28698943Sluigi TOK_IPTTL, 28798943Sluigi TOK_IPVER, 28898943Sluigi TOK_ESTAB, 28998943Sluigi TOK_SETUP, 290136075Sgreen TOK_TCPDATALEN, 29198943Sluigi TOK_TCPFLAGS, 29298943Sluigi TOK_TCPOPTS, 29398943Sluigi TOK_TCPSEQ, 29498943Sluigi TOK_TCPACK, 29598943Sluigi TOK_TCPWIN, 29698943Sluigi TOK_ICMPTYPES, 297102087Sluigi TOK_MAC, 298102087Sluigi TOK_MACTYPE, 299112250Scjc TOK_VERREVPATH, 300128575Sandre TOK_VERSRCREACH, 301133387Sandre TOK_ANTISPOOF, 302117241Sluigi TOK_IPSEC, 303117469Sluigi TOK_COMMENT, 30498943Sluigi 30598943Sluigi TOK_PLR, 306101978Sluigi TOK_NOERROR, 30798943Sluigi TOK_BUCKETS, 30898943Sluigi TOK_DSTIP, 30998943Sluigi TOK_SRCIP, 31098943Sluigi TOK_DSTPORT, 31198943Sluigi TOK_SRCPORT, 31298943Sluigi TOK_ALL, 31398943Sluigi TOK_MASK, 31498943Sluigi TOK_BW, 31598943Sluigi TOK_DELAY, 31698943Sluigi TOK_RED, 31798943Sluigi TOK_GRED, 31898943Sluigi TOK_DROPTAIL, 31998943Sluigi TOK_PROTO, 32098943Sluigi TOK_WEIGHT, 321165648Spiso TOK_IP, 322165648Spiso TOK_IF, 323165648Spiso TOK_ALOG, 324165648Spiso TOK_DENY_INC, 325165648Spiso TOK_SAME_PORTS, 326165648Spiso TOK_UNREG_ONLY, 327165648Spiso TOK_RESET_ADDR, 328165648Spiso TOK_ALIAS_REV, 329165648Spiso TOK_PROXY_ONLY, 330165648Spiso TOK_REDIR_ADDR, 331165648Spiso TOK_REDIR_PORT, 332165648Spiso TOK_REDIR_PROTO, 333145246Sbrooks 334145246Sbrooks TOK_IPV6, 335145246Sbrooks TOK_FLOWID, 336145246Sbrooks TOK_ICMP6TYPES, 337145246Sbrooks TOK_EXT6HDR, 338145246Sbrooks TOK_DSTIP6, 339145246Sbrooks TOK_SRCIP6, 340146894Smlaier 341146894Smlaier TOK_IPV4, 342149020Sbz TOK_UNREACH6, 343149020Sbz TOK_RESET6, 34498943Sluigi}; 34598943Sluigi 34698943Sluigistruct _s_x dummynet_params[] = { 34798943Sluigi { "plr", TOK_PLR }, 348101978Sluigi { "noerror", TOK_NOERROR }, 34998943Sluigi { "buckets", TOK_BUCKETS }, 35098943Sluigi { "dst-ip", TOK_DSTIP }, 35198943Sluigi { "src-ip", TOK_SRCIP }, 35298943Sluigi { "dst-port", TOK_DSTPORT }, 35398943Sluigi { "src-port", TOK_SRCPORT }, 35498943Sluigi { "proto", TOK_PROTO }, 35598943Sluigi { "weight", TOK_WEIGHT }, 35698943Sluigi { "all", TOK_ALL }, 35798943Sluigi { "mask", TOK_MASK }, 35898943Sluigi { "droptail", TOK_DROPTAIL }, 35998943Sluigi { "red", TOK_RED }, 36098943Sluigi { "gred", TOK_GRED }, 36198943Sluigi { "bw", TOK_BW }, 36298943Sluigi { "bandwidth", TOK_BW }, 36398943Sluigi { "delay", TOK_DELAY }, 36499475Sluigi { "pipe", TOK_PIPE }, 36598943Sluigi { "queue", TOK_QUEUE }, 366145246Sbrooks { "flow-id", TOK_FLOWID}, 367145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 368145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 369145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 370145246Sbrooks { "src-ip6", TOK_SRCIP6}, 37198943Sluigi { "dummynet-params", TOK_NULL }, 372117328Sluigi { NULL, 0 } /* terminator */ 37398943Sluigi}; 37498943Sluigi 375165648Spisostruct _s_x nat_params[] = { 376165648Spiso { "ip", TOK_IP }, 377165648Spiso { "if", TOK_IF }, 378165648Spiso { "log", TOK_ALOG }, 379165648Spiso { "deny_in", TOK_DENY_INC }, 380165648Spiso { "same_ports", TOK_SAME_PORTS }, 381165648Spiso { "unreg_only", TOK_UNREG_ONLY }, 382165648Spiso { "reset", TOK_RESET_ADDR }, 383165648Spiso { "reverse", TOK_ALIAS_REV }, 384165648Spiso { "proxy_only", TOK_PROXY_ONLY }, 385165648Spiso { "redirect_addr", TOK_REDIR_ADDR }, 386165648Spiso { "redirect_port", TOK_REDIR_PORT }, 387165648Spiso { "redirect_proto", TOK_REDIR_PROTO }, 388165648Spiso { NULL, 0 } /* terminator */ 389165648Spiso}; 390165648Spiso 39198943Sluigistruct _s_x rule_actions[] = { 39298943Sluigi { "accept", TOK_ACCEPT }, 39398943Sluigi { "pass", TOK_ACCEPT }, 39498943Sluigi { "allow", TOK_ACCEPT }, 39598943Sluigi { "permit", TOK_ACCEPT }, 39698943Sluigi { "count", TOK_COUNT }, 39798943Sluigi { "pipe", TOK_PIPE }, 39898943Sluigi { "queue", TOK_QUEUE }, 39998943Sluigi { "divert", TOK_DIVERT }, 40098943Sluigi { "tee", TOK_TEE }, 401141351Sglebius { "netgraph", TOK_NETGRAPH }, 402141351Sglebius { "ngtee", TOK_NGTEE }, 40398943Sluigi { "fwd", TOK_FORWARD }, 40498943Sluigi { "forward", TOK_FORWARD }, 40598943Sluigi { "skipto", TOK_SKIPTO }, 40698943Sluigi { "deny", TOK_DENY }, 40798943Sluigi { "drop", TOK_DENY }, 40898943Sluigi { "reject", TOK_REJECT }, 409149020Sbz { "reset6", TOK_RESET6 }, 41098943Sluigi { "reset", TOK_RESET }, 411149020Sbz { "unreach6", TOK_UNREACH6 }, 41299475Sluigi { "unreach", TOK_UNREACH }, 41398943Sluigi { "check-state", TOK_CHECKSTATE }, 414117469Sluigi { "//", TOK_COMMENT }, 415165648Spiso { "nat", TOK_NAT }, 416117328Sluigi { NULL, 0 } /* terminator */ 41798943Sluigi}; 41898943Sluigi 419136071Sgreenstruct _s_x rule_action_params[] = { 420136071Sgreen { "altq", TOK_ALTQ }, 421136071Sgreen { "log", TOK_LOG }, 422158879Soleg { "tag", TOK_TAG }, 423158879Soleg { "untag", TOK_UNTAG }, 424136071Sgreen { NULL, 0 } /* terminator */ 425136071Sgreen}; 426136071Sgreen 42798943Sluigistruct _s_x rule_options[] = { 428158879Soleg { "tagged", TOK_TAGGED }, 42998943Sluigi { "uid", TOK_UID }, 43098943Sluigi { "gid", TOK_GID }, 431133600Scsjp { "jail", TOK_JAIL }, 43298943Sluigi { "in", TOK_IN }, 43398943Sluigi { "limit", TOK_LIMIT }, 43498943Sluigi { "keep-state", TOK_KEEPSTATE }, 43598943Sluigi { "bridged", TOK_LAYER2 }, 43698943Sluigi { "layer2", TOK_LAYER2 }, 43798943Sluigi { "out", TOK_OUT }, 438136073Sgreen { "diverted", TOK_DIVERTED }, 439136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 440136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 44198943Sluigi { "xmit", TOK_XMIT }, 44298943Sluigi { "recv", TOK_RECV }, 44398943Sluigi { "via", TOK_VIA }, 44498943Sluigi { "fragment", TOK_FRAG }, 44598943Sluigi { "frag", TOK_FRAG }, 44698943Sluigi { "ipoptions", TOK_IPOPTS }, 44798943Sluigi { "ipopts", TOK_IPOPTS }, 44898943Sluigi { "iplen", TOK_IPLEN }, 44998943Sluigi { "ipid", TOK_IPID }, 45098943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 45198943Sluigi { "iptos", TOK_IPTOS }, 45298943Sluigi { "ipttl", TOK_IPTTL }, 45398943Sluigi { "ipversion", TOK_IPVER }, 45498943Sluigi { "ipver", TOK_IPVER }, 45598943Sluigi { "estab", TOK_ESTAB }, 45698943Sluigi { "established", TOK_ESTAB }, 45798943Sluigi { "setup", TOK_SETUP }, 458136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 45998943Sluigi { "tcpflags", TOK_TCPFLAGS }, 46098943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 46198943Sluigi { "tcpoptions", TOK_TCPOPTS }, 46298943Sluigi { "tcpopts", TOK_TCPOPTS }, 46398943Sluigi { "tcpseq", TOK_TCPSEQ }, 46498943Sluigi { "tcpack", TOK_TCPACK }, 46598943Sluigi { "tcpwin", TOK_TCPWIN }, 46699909Sluigi { "icmptype", TOK_ICMPTYPES }, 46798943Sluigi { "icmptypes", TOK_ICMPTYPES }, 468102087Sluigi { "dst-ip", TOK_DSTIP }, 469102087Sluigi { "src-ip", TOK_SRCIP }, 470102087Sluigi { "dst-port", TOK_DSTPORT }, 471102087Sluigi { "src-port", TOK_SRCPORT }, 472102087Sluigi { "proto", TOK_PROTO }, 473102087Sluigi { "MAC", TOK_MAC }, 474102087Sluigi { "mac", TOK_MAC }, 475102087Sluigi { "mac-type", TOK_MACTYPE }, 476112250Scjc { "verrevpath", TOK_VERREVPATH }, 477128575Sandre { "versrcreach", TOK_VERSRCREACH }, 478133387Sandre { "antispoof", TOK_ANTISPOOF }, 479117241Sluigi { "ipsec", TOK_IPSEC }, 480145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 481145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 482145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 483145246Sbrooks { "flow-id", TOK_FLOWID}, 484145246Sbrooks { "ipv6", TOK_IPV6}, 485145246Sbrooks { "ip6", TOK_IPV6}, 486146894Smlaier { "ipv4", TOK_IPV4}, 487146894Smlaier { "ip4", TOK_IPV4}, 488145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 489145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 490145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 491145246Sbrooks { "src-ip6", TOK_SRCIP6}, 492117469Sluigi { "//", TOK_COMMENT }, 49398943Sluigi 49498943Sluigi { "not", TOK_NOT }, /* pseudo option */ 49598943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 49698943Sluigi { "or", TOK_OR }, /* pseudo option */ 49798943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 498101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 499101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 500101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 501101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 502117328Sluigi { NULL, 0 } /* terminator */ 50398943Sluigi}; 50498943Sluigi 505153374Sglebius#define TABLEARG "tablearg" 506153374Sglebius 507117328Sluigistatic __inline uint64_t 508117328Sluigialign_uint64(uint64_t *pll) { 509117328Sluigi uint64_t ret; 510115793Sticso 511115793Sticso bcopy (pll, &ret, sizeof(ret)); 512115793Sticso return ret; 513129389Sstefanf} 514115793Sticso 515117328Sluigi/* 516117328Sluigi * conditionally runs the command. 517117328Sluigi */ 518117469Sluigistatic int 519119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 520117328Sluigi{ 521117328Sluigi static int s = -1; /* the socket */ 522117328Sluigi int i; 523117577Sluigi 524117328Sluigi if (test_only) 525117328Sluigi return 0; 526117328Sluigi 527117328Sluigi if (s == -1) 528117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 529117328Sluigi if (s < 0) 530117328Sluigi err(EX_UNAVAILABLE, "socket"); 531117328Sluigi 532117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 533130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 534165648Spiso optname == IP_FW_TABLE_GETSIZE || 535165648Spiso optname == IP_FW_NAT_GET_CONFIG || 536165648Spiso optname == IP_FW_NAT_GET_LOG) 537117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 538117328Sluigi (socklen_t *)optlen); 539117328Sluigi else 540117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 541117328Sluigi return i; 542117328Sluigi} 543117328Sluigi 54498943Sluigi/** 54598943Sluigi * match_token takes a table and a string, returns the value associated 546117328Sluigi * with the string (-1 in case of failure). 54798943Sluigi */ 54898943Sluigistatic int 54998943Sluigimatch_token(struct _s_x *table, char *string) 55098943Sluigi{ 55198943Sluigi struct _s_x *pt; 552117469Sluigi uint i = strlen(string); 55398943Sluigi 55498943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 55598943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 55698943Sluigi return pt->x; 55798943Sluigi return -1; 558129389Sstefanf} 55998943Sluigi 560117328Sluigi/** 561117328Sluigi * match_value takes a table and a value, returns the string associated 562117328Sluigi * with the value (NULL in case of failure). 563117328Sluigi */ 564117469Sluigistatic char const * 565117469Sluigimatch_value(struct _s_x *p, int value) 56698943Sluigi{ 56798943Sluigi for (; p->s != NULL; p++) 56898943Sluigi if (p->x == value) 56998943Sluigi return p->s; 57098943Sluigi return NULL; 57198943Sluigi} 57298943Sluigi 57398943Sluigi/* 574140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 575140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 576140271Sbrooks * of the second. A warning is printed to stderr in the case that the 577140271Sbrooks * first string is a sub-string of the second. 578140271Sbrooks * 579140271Sbrooks * This function will be removed in the future through the usual 580140271Sbrooks * deprecation process. 581140271Sbrooks */ 582140271Sbrooksstatic int 583140271Sbrooks_substrcmp(const char *str1, const char* str2) 584140271Sbrooks{ 585140271Sbrooks 586140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 587140271Sbrooks return 1; 588140271Sbrooks 589140271Sbrooks if (strlen(str1) != strlen(str2)) 590140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 591140271Sbrooks str1, str2); 592140271Sbrooks return 0; 593140271Sbrooks} 594140271Sbrooks 595140271Sbrooks/* 596140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 597140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 598140271Sbrooks * of the first. A warning is printed to stderr in the case that the 599140271Sbrooks * first string does not match the third. 600140271Sbrooks * 601140271Sbrooks * This function exists to warn about the bizzare construction 602140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 603140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 604140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 605140271Sbrooks * other string beginning with "by". 606140271Sbrooks * 607140271Sbrooks * This function will be removed in the future through the usual 608140271Sbrooks * deprecation process. 609140271Sbrooks */ 610140271Sbrooksstatic int 611140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 612140271Sbrooks{ 613140271Sbrooks 614140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 615140271Sbrooks return 1; 616140271Sbrooks 617140271Sbrooks if (strcmp(str1, str3) != 0) 618140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 619140271Sbrooks str1, str3); 620140271Sbrooks return 0; 621140271Sbrooks} 622140271Sbrooks 623140271Sbrooks/* 62498943Sluigi * prints one port, symbolic or numeric 62598943Sluigi */ 62698943Sluigistatic void 627117328Sluigiprint_port(int proto, uint16_t port) 62898943Sluigi{ 62998943Sluigi 63098943Sluigi if (proto == IPPROTO_ETHERTYPE) { 631117469Sluigi char const *s; 63298943Sluigi 63398943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 63498943Sluigi printf("%s", s); 63598943Sluigi else 63698943Sluigi printf("0x%04x", port); 63798943Sluigi } else { 63898943Sluigi struct servent *se = NULL; 63998943Sluigi if (do_resolv) { 64098943Sluigi struct protoent *pe = getprotobynumber(proto); 64198943Sluigi 64298943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 64398943Sluigi } 64498943Sluigi if (se) 64598943Sluigi printf("%s", se->s_name); 64698943Sluigi else 64798943Sluigi printf("%d", port); 64898943Sluigi } 64998943Sluigi} 65098943Sluigi 651117328Sluigistruct _s_x _port_name[] = { 652117328Sluigi {"dst-port", O_IP_DSTPORT}, 653117328Sluigi {"src-port", O_IP_SRCPORT}, 654117328Sluigi {"ipid", O_IPID}, 655117328Sluigi {"iplen", O_IPLEN}, 656117328Sluigi {"ipttl", O_IPTTL}, 657117328Sluigi {"mac-type", O_MAC_TYPE}, 658136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 659158879Soleg {"tagged", O_TAGGED}, 660117328Sluigi {NULL, 0} 661117328Sluigi}; 662117328Sluigi 66398943Sluigi/* 664117328Sluigi * Print the values in a list 16-bit items of the types above. 66598943Sluigi * XXX todo: add support for mask. 66698943Sluigi */ 66798943Sluigistatic void 668102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 66998943Sluigi{ 670117328Sluigi uint16_t *p = cmd->ports; 67198943Sluigi int i; 672117469Sluigi char const *sep; 67398943Sluigi 674116690Sluigi if (opcode != 0) { 675117328Sluigi sep = match_value(_port_name, opcode); 676117328Sluigi if (sep == NULL) 677116690Sluigi sep = "???"; 678116690Sluigi printf (" %s", sep); 679116690Sluigi } 680116690Sluigi sep = " "; 68198943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 68298943Sluigi printf(sep); 68398943Sluigi print_port(proto, p[0]); 68498943Sluigi if (p[0] != p[1]) { 68598943Sluigi printf("-"); 68698943Sluigi print_port(proto, p[1]); 68798943Sluigi } 68898943Sluigi sep = ","; 68998943Sluigi } 69098943Sluigi} 69198943Sluigi 69298943Sluigi/* 69398943Sluigi * Like strtol, but also translates service names into port numbers 69498943Sluigi * for some protocols. 69598943Sluigi * In particular: 69698943Sluigi * proto == -1 disables the protocol check; 69798943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 69898943Sluigi * proto == <some value in /etc/protocols> matches the values there. 699101628Sluigi * Returns *end == s in case the parameter is not found. 70098943Sluigi */ 70198943Sluigistatic int 70298943Sluigistrtoport(char *s, char **end, int base, int proto) 70398943Sluigi{ 704101628Sluigi char *p, *buf; 705101628Sluigi char *s1; 70698943Sluigi int i; 70798943Sluigi 708101628Sluigi *end = s; /* default - not found */ 709117577Sluigi if (*s == '\0') 710101628Sluigi return 0; /* not found */ 711106505Smaxim 71298943Sluigi if (isdigit(*s)) 71398943Sluigi return strtol(s, end, base); 71498943Sluigi 71598943Sluigi /* 716101628Sluigi * find separator. '\\' escapes the next char. 71798943Sluigi */ 718101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 719101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 720101628Sluigi s1++; 72198943Sluigi 722101628Sluigi buf = malloc(s1 - s + 1); 723101628Sluigi if (buf == NULL) 724101628Sluigi return 0; 725101628Sluigi 726101628Sluigi /* 727101628Sluigi * copy into a buffer skipping backslashes 728101628Sluigi */ 729101628Sluigi for (p = s, i = 0; p != s1 ; p++) 730117577Sluigi if (*p != '\\') 731101628Sluigi buf[i++] = *p; 732101628Sluigi buf[i++] = '\0'; 733101628Sluigi 73498943Sluigi if (proto == IPPROTO_ETHERTYPE) { 735101628Sluigi i = match_token(ether_types, buf); 736101628Sluigi free(buf); 737101628Sluigi if (i != -1) { /* found */ 73898943Sluigi *end = s1; 73998943Sluigi return i; 74098943Sluigi } 74198943Sluigi } else { 74298943Sluigi struct protoent *pe = NULL; 74398943Sluigi struct servent *se; 74498943Sluigi 74598943Sluigi if (proto != 0) 74698943Sluigi pe = getprotobynumber(proto); 74798943Sluigi setservent(1); 748101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 749101628Sluigi free(buf); 75098943Sluigi if (se != NULL) { 75198943Sluigi *end = s1; 75298943Sluigi return ntohs(se->s_port); 75398943Sluigi } 75498943Sluigi } 755101628Sluigi return 0; /* not found */ 75698943Sluigi} 75798943Sluigi 75898943Sluigi/* 759136071Sgreen * Map between current altq queue id numbers and names. 760136071Sgreen */ 761136071Sgreenstatic int altq_fetched = 0; 762136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 763136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 764136071Sgreen 765136071Sgreenstatic void 766136071Sgreenaltq_set_enabled(int enabled) 767136071Sgreen{ 768136071Sgreen int pffd; 769136071Sgreen 770136071Sgreen pffd = open("/dev/pf", O_RDWR); 771136071Sgreen if (pffd == -1) 772136071Sgreen err(EX_UNAVAILABLE, 773136071Sgreen "altq support opening pf(4) control device"); 774136071Sgreen if (enabled) { 775136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 776136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 777136071Sgreen } else { 778136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 779136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 780136071Sgreen } 781136071Sgreen close(pffd); 782136071Sgreen} 783136071Sgreen 784136071Sgreenstatic void 785136071Sgreenaltq_fetch() 786136071Sgreen{ 787136071Sgreen struct pfioc_altq pfioc; 788136071Sgreen struct pf_altq *altq; 789136071Sgreen int pffd, mnr; 790136071Sgreen 791136071Sgreen if (altq_fetched) 792136071Sgreen return; 793136071Sgreen altq_fetched = 1; 794136071Sgreen pffd = open("/dev/pf", O_RDONLY); 795136071Sgreen if (pffd == -1) { 796136071Sgreen warn("altq support opening pf(4) control device"); 797136071Sgreen return; 798136071Sgreen } 799136071Sgreen bzero(&pfioc, sizeof(pfioc)); 800136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 801136071Sgreen warn("altq support getting queue list"); 802136071Sgreen close(pffd); 803136071Sgreen return; 804136071Sgreen } 805136071Sgreen mnr = pfioc.nr; 806136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 807136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 808136071Sgreen if (errno == EBUSY) 809136071Sgreen break; 810136071Sgreen warn("altq support getting queue list"); 811136071Sgreen close(pffd); 812136071Sgreen return; 813136071Sgreen } 814136071Sgreen if (pfioc.altq.qid == 0) 815136071Sgreen continue; 816136071Sgreen altq = malloc(sizeof(*altq)); 817136071Sgreen if (altq == NULL) 818136071Sgreen err(EX_OSERR, "malloc"); 819136071Sgreen *altq = pfioc.altq; 820136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 821136071Sgreen } 822136071Sgreen close(pffd); 823136071Sgreen} 824136071Sgreen 825136071Sgreenstatic u_int32_t 826136071Sgreenaltq_name_to_qid(const char *name) 827136071Sgreen{ 828136071Sgreen struct pf_altq *altq; 829136071Sgreen 830136071Sgreen altq_fetch(); 831136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 832136071Sgreen if (strcmp(name, altq->qname) == 0) 833136071Sgreen break; 834136071Sgreen if (altq == NULL) 835136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 836136071Sgreen return altq->qid; 837136071Sgreen} 838136071Sgreen 839136071Sgreenstatic const char * 840136071Sgreenaltq_qid_to_name(u_int32_t qid) 841136071Sgreen{ 842136071Sgreen struct pf_altq *altq; 843136071Sgreen 844136071Sgreen altq_fetch(); 845136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 846136071Sgreen if (qid == altq->qid) 847136071Sgreen break; 848136071Sgreen if (altq == NULL) 849136071Sgreen return NULL; 850136071Sgreen return altq->qname; 851136071Sgreen} 852136071Sgreen 853136071Sgreenstatic void 854136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 855136071Sgreen{ 856136071Sgreen *qid = altq_name_to_qid(av); 857136071Sgreen} 858136071Sgreen 859136071Sgreen/* 860117328Sluigi * Fill the body of the command with the list of port ranges. 86198943Sluigi */ 86298943Sluigistatic int 86398943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 86498943Sluigi{ 865117328Sluigi uint16_t a, b, *p = cmd->ports; 86698943Sluigi int i = 0; 867102087Sluigi char *s = av; 86898943Sluigi 869102087Sluigi while (*s) { 87098943Sluigi a = strtoport(av, &s, 0, proto); 871159636Soleg if (s == av) /* empty or invalid argument */ 872159636Soleg return (0); 873159636Soleg 874159636Soleg switch (*s) { 875159636Soleg case '-': /* a range */ 876159636Soleg av = s + 1; 87798943Sluigi b = strtoport(av, &s, 0, proto); 878159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 879159636Soleg if (s == av || (*s != ',' && *s != '\0')) 880159636Soleg return (0); 88198943Sluigi p[0] = a; 88298943Sluigi p[1] = b; 883159636Soleg break; 884159636Soleg case ',': /* comma separated list */ 885159636Soleg case '\0': 88698943Sluigi p[0] = p[1] = a; 887159636Soleg break; 888159636Soleg default: 889159636Soleg warnx("port list: invalid separator <%c> in <%s>", 890101978Sluigi *s, av); 891159636Soleg return (0); 892159636Soleg } 893159636Soleg 894102087Sluigi i++; 895102087Sluigi p += 2; 896159636Soleg av = s + 1; 89798943Sluigi } 89898943Sluigi if (i > 0) { 899159636Soleg if (i + 1 > F_LEN_MASK) 900102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 901159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 90298943Sluigi } 903159636Soleg return (i); 90498943Sluigi} 90598943Sluigi 90698943Sluigistatic struct _s_x icmpcodes[] = { 90798943Sluigi { "net", ICMP_UNREACH_NET }, 90898943Sluigi { "host", ICMP_UNREACH_HOST }, 90998943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 91098943Sluigi { "port", ICMP_UNREACH_PORT }, 91198943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 91298943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 91398943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 91498943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 91598943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 91698943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 91798943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 91898943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 91998943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 92098943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 92198943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 92298943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 92398943Sluigi { NULL, 0 } 92498943Sluigi}; 92598943Sluigi 92698943Sluigistatic void 92798943Sluigifill_reject_code(u_short *codep, char *str) 92898943Sluigi{ 92998943Sluigi int val; 93098943Sluigi char *s; 93198943Sluigi 93298943Sluigi val = strtoul(str, &s, 0); 93398943Sluigi if (s == str || *s != '\0' || val >= 0x100) 93498943Sluigi val = match_token(icmpcodes, str); 935102087Sluigi if (val < 0) 93698943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 93798943Sluigi *codep = val; 93898943Sluigi return; 93998943Sluigi} 94098943Sluigi 94198943Sluigistatic void 942117328Sluigiprint_reject_code(uint16_t code) 94398943Sluigi{ 944117469Sluigi char const *s = match_value(icmpcodes, code); 94598943Sluigi 94698943Sluigi if (s != NULL) 94799475Sluigi printf("unreach %s", s); 94898943Sluigi else 94999475Sluigi printf("unreach %u", code); 95098943Sluigi} 95198943Sluigi 952149020Sbzstatic struct _s_x icmp6codes[] = { 953149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 954149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 955149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 956149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 957149020Sbz { NULL, 0 } 958149020Sbz}; 959149020Sbz 960149020Sbzstatic void 961149020Sbzfill_unreach6_code(u_short *codep, char *str) 962149020Sbz{ 963149020Sbz int val; 964149020Sbz char *s; 965149020Sbz 966149020Sbz val = strtoul(str, &s, 0); 967149020Sbz if (s == str || *s != '\0' || val >= 0x100) 968149020Sbz val = match_token(icmp6codes, str); 969149020Sbz if (val < 0) 970149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 971149020Sbz *codep = val; 972149020Sbz return; 973149020Sbz} 974149020Sbz 975149020Sbzstatic void 976149020Sbzprint_unreach6_code(uint16_t code) 977149020Sbz{ 978149020Sbz char const *s = match_value(icmp6codes, code); 979149020Sbz 980149020Sbz if (s != NULL) 981149020Sbz printf("unreach6 %s", s); 982149020Sbz else 983149020Sbz printf("unreach6 %u", code); 984149020Sbz} 985149020Sbz 98698943Sluigi/* 98798943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 98898943Sluigi * or -1 if the mask is not contiguous. 98998943Sluigi * XXX this needs a proper fix. 99098943Sluigi * This effectively works on masks in big-endian (network) format. 99198943Sluigi * when compiled on little endian architectures. 99298943Sluigi * 99398943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 99498943Sluigi * the first bit on the wire is bit 0 of the first byte. 99598943Sluigi * len is the max length in bits. 99698943Sluigi */ 99798943Sluigistatic int 998117577Sluigicontigmask(uint8_t *p, int len) 99998943Sluigi{ 100098943Sluigi int i, n; 1001117577Sluigi 100298943Sluigi for (i=0; i<len ; i++) 100398943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 100498943Sluigi break; 100598943Sluigi for (n=i+1; n < len; n++) 100698943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 100798943Sluigi return -1; /* mask not contiguous */ 100898943Sluigi return i; 100998943Sluigi} 101098943Sluigi 101198943Sluigi/* 101298943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 101398943Sluigi * There is a specialized check for f_tcpflags. 101498943Sluigi */ 101598943Sluigistatic void 1016117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 101798943Sluigi{ 1018117469Sluigi char const *comma = ""; 101998943Sluigi int i; 1020117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1021117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 102298943Sluigi 102398943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 102498943Sluigi printf(" setup"); 102598943Sluigi return; 102698943Sluigi } 102798943Sluigi 102898943Sluigi printf(" %s ", name); 102998943Sluigi for (i=0; list[i].x != 0; i++) { 103098943Sluigi if (set & list[i].x) { 103198943Sluigi set &= ~list[i].x; 103298943Sluigi printf("%s%s", comma, list[i].s); 103398943Sluigi comma = ","; 103498943Sluigi } 103598943Sluigi if (clear & list[i].x) { 103698943Sluigi clear &= ~list[i].x; 103798943Sluigi printf("%s!%s", comma, list[i].s); 103898943Sluigi comma = ","; 103998943Sluigi } 104098943Sluigi } 104198943Sluigi} 104298943Sluigi 104398943Sluigi/* 104498943Sluigi * Print the ip address contained in a command. 104598943Sluigi */ 104698943Sluigistatic void 1047117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 104898943Sluigi{ 104998943Sluigi struct hostent *he = NULL; 1050117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1051117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 105298943Sluigi 1053102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 105498943Sluigi 105598943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 105698943Sluigi printf("me"); 105798943Sluigi return; 105898943Sluigi } 1059130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1060130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1061130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1062130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1063130281Sru printf(",%u", *a); 1064130281Sru printf(")"); 1065130281Sru return; 1066130281Sru } 106798943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1068117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1069116716Sluigi int i, j; 107098943Sluigi char comma = '{'; 107198943Sluigi 107298943Sluigi x = cmd->o.arg1 - 1; 107398943Sluigi x = htonl( ~x ); 107498943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107598943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1076117577Sluigi contigmask((uint8_t *)&x, 32)); 107798943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107898943Sluigi x &= 0xff; /* base */ 1079116716Sluigi /* 1080116716Sluigi * Print bits and ranges. 1081116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1082116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1083116716Sluigi * range, otherwise only print the initial bit and rescan. 1084116716Sluigi */ 108598943Sluigi for (i=0; i < cmd->o.arg1; i++) 1086117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1087116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1088117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1089116716Sluigi break; 109098943Sluigi printf("%c%d", comma, i+x); 1091116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1092116716Sluigi printf("-%d", j-1+x); 1093116716Sluigi i = j-1; 1094116716Sluigi } 109598943Sluigi comma = ','; 109698943Sluigi } 109798943Sluigi printf("}"); 109898943Sluigi return; 109998943Sluigi } 1100117328Sluigi /* 1101117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1102117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1103117328Sluigi * use that to count the number of entries. 1104117328Sluigi */ 1105117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1106117328Sluigi int mb = /* mask length */ 1107117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1108117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 110998943Sluigi if (mb == 32 && do_resolv) 1110117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 111198943Sluigi if (he != NULL) /* resolved to name */ 111298943Sluigi printf("%s", he->h_name); 111398943Sluigi else if (mb == 0) /* any */ 111498943Sluigi printf("any"); 111598943Sluigi else { /* numeric IP followed by some kind of mask */ 1116117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 111798943Sluigi if (mb < 0) 1118117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 111998943Sluigi else if (mb < 32) 112098943Sluigi printf("/%d", mb); 112198943Sluigi } 1122117328Sluigi if (len > 1) 1123117328Sluigi printf(","); 1124117328Sluigi } 112598943Sluigi} 112698943Sluigi 112798943Sluigi/* 112898943Sluigi * prints a MAC address/mask pair 112998943Sluigi */ 113098943Sluigistatic void 1131117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 113298943Sluigi{ 113398943Sluigi int l = contigmask(mask, 48); 113498943Sluigi 113598943Sluigi if (l == 0) 113698943Sluigi printf(" any"); 113798943Sluigi else { 113898943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 113998943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 114098943Sluigi if (l == -1) 114198943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 114298943Sluigi mask[0], mask[1], mask[2], 114398943Sluigi mask[3], mask[4], mask[5]); 114498943Sluigi else if (l < 48) 114598943Sluigi printf("/%d", l); 114698943Sluigi } 114798943Sluigi} 114898943Sluigi 114999475Sluigistatic void 115099475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 115199475Sluigi{ 1152117328Sluigi uint8_t type; 115398943Sluigi 115499475Sluigi cmd->d[0] = 0; 115599475Sluigi while (*av) { 115699475Sluigi if (*av == ',') 115799475Sluigi av++; 115899475Sluigi 115999475Sluigi type = strtoul(av, &av, 0); 116099475Sluigi 116199475Sluigi if (*av != ',' && *av != '\0') 116299475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 116399475Sluigi 116499475Sluigi if (type > 31) 116599475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 116699475Sluigi 116799475Sluigi cmd->d[0] |= 1 << type; 116899475Sluigi } 116999475Sluigi cmd->o.opcode = O_ICMPTYPE; 117099475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 117199475Sluigi} 117299475Sluigi 117399475Sluigistatic void 117499475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 117599475Sluigi{ 117699475Sluigi int i; 117799475Sluigi char sep= ' '; 117899475Sluigi 117999475Sluigi printf(" icmptypes"); 118099475Sluigi for (i = 0; i < 32; i++) { 118199475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 118299475Sluigi continue; 118399475Sluigi printf("%c%d", sep, i); 118499475Sluigi sep = ','; 118599475Sluigi } 118699475Sluigi} 118799475Sluigi 1188145246Sbrooks/* 1189145246Sbrooks * Print the ip address contained in a command. 1190145246Sbrooks */ 1191145246Sbrooksstatic void 1192145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1193145246Sbrooks{ 1194145246Sbrooks struct hostent *he = NULL; 1195145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1196145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1197145246Sbrooks char trad[255]; 1198145246Sbrooks 1199145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1200145246Sbrooks 1201145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1202145246Sbrooks printf("me6"); 1203145246Sbrooks return; 1204145246Sbrooks } 1205145246Sbrooks if (cmd->o.opcode == O_IP6) { 1206152923Sume printf(" ip6"); 1207145246Sbrooks return; 1208145246Sbrooks } 1209145246Sbrooks 1210145246Sbrooks /* 1211145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1212145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1213145246Sbrooks * use that to count the number of entries. 1214145246Sbrooks */ 1215145246Sbrooks 1216145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1217145246Sbrooks int mb = /* mask length */ 1218145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1219145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1220145246Sbrooks 1221145246Sbrooks if (mb == 128 && do_resolv) 1222145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1223145246Sbrooks if (he != NULL) /* resolved to name */ 1224145246Sbrooks printf("%s", he->h_name); 1225145246Sbrooks else if (mb == 0) /* any */ 1226145246Sbrooks printf("any"); 1227145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1228145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1229145246Sbrooks printf("Error ntop in print_ip6\n"); 1230145246Sbrooks printf("%s", trad ); 1231145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1232145246Sbrooks printf(":%s", 1233145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1234145246Sbrooks else if (mb < 128) 1235145246Sbrooks printf("/%d", mb); 1236145246Sbrooks } 1237145246Sbrooks if (len > 2) 1238145246Sbrooks printf(","); 1239145246Sbrooks } 1240145246Sbrooks} 1241145246Sbrooks 1242145246Sbrooksstatic void 1243145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1244145246Sbrooks{ 1245145246Sbrooks uint8_t type; 1246145246Sbrooks 1247162344Sjhay bzero(cmd, sizeof(*cmd)); 1248145246Sbrooks while (*av) { 1249145246Sbrooks if (*av == ',') 1250145246Sbrooks av++; 1251145246Sbrooks type = strtoul(av, &av, 0); 1252145246Sbrooks if (*av != ',' && *av != '\0') 1253145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1254145246Sbrooks /* 1255145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1256145246Sbrooks * we shouldn't be able to filter all possiable values 1257145246Sbrooks * regardless of the ability of the rest of the kernel to do 1258145246Sbrooks * anything useful with them. 1259145246Sbrooks */ 1260145246Sbrooks if (type > ICMP6_MAXTYPE) 1261145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1262145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1263145246Sbrooks } 1264145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1265145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1266145246Sbrooks} 1267145246Sbrooks 1268145246Sbrooks 1269145246Sbrooksstatic void 1270145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1271145246Sbrooks{ 1272145246Sbrooks int i, j; 1273145246Sbrooks char sep= ' '; 1274145246Sbrooks 1275152923Sume printf(" ip6 icmp6types"); 1276145246Sbrooks for (i = 0; i < 7; i++) 1277145246Sbrooks for (j=0; j < 32; ++j) { 1278145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1279145246Sbrooks continue; 1280145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1281145246Sbrooks sep = ','; 1282145246Sbrooks } 1283145246Sbrooks} 1284145246Sbrooks 1285145246Sbrooksstatic void 1286145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1287145246Sbrooks{ 1288145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1289145246Sbrooks char sep = ','; 1290145246Sbrooks 1291145246Sbrooks printf(" flow-id "); 1292145246Sbrooks for( i=0; i < limit; ++i) { 1293145246Sbrooks if (i == limit - 1) 1294145246Sbrooks sep = ' '; 1295145246Sbrooks printf("%d%c", cmd->d[i], sep); 1296145246Sbrooks } 1297145246Sbrooks} 1298145246Sbrooks 1299145246Sbrooks/* structure and define for the extension header in ipv6 */ 1300145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1301145246Sbrooks { "frag", EXT_FRAGMENT }, 1302145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1303145246Sbrooks { "route", EXT_ROUTING }, 1304149020Sbz { "dstopt", EXT_DSTOPTS }, 1305145246Sbrooks { "ah", EXT_AH }, 1306145246Sbrooks { "esp", EXT_ESP }, 1307169245Sbz { "rthdr0", EXT_RTHDR0 }, 1308169245Sbz { "rthdr2", EXT_RTHDR2 }, 1309145246Sbrooks { NULL, 0 } 1310145246Sbrooks}; 1311145246Sbrooks 1312145246Sbrooks/* fills command for the extension header filtering */ 1313145246Sbrooksint 1314145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1315145246Sbrooks{ 1316145246Sbrooks int tok; 1317145246Sbrooks char *s = av; 1318145246Sbrooks 1319145246Sbrooks cmd->arg1 = 0; 1320145246Sbrooks 1321145246Sbrooks while(s) { 1322145246Sbrooks av = strsep( &s, ",") ; 1323145246Sbrooks tok = match_token(ext6hdrcodes, av); 1324145246Sbrooks switch (tok) { 1325145246Sbrooks case EXT_FRAGMENT: 1326145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1327145246Sbrooks break; 1328145246Sbrooks 1329145246Sbrooks case EXT_HOPOPTS: 1330145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1331145246Sbrooks break; 1332145246Sbrooks 1333145246Sbrooks case EXT_ROUTING: 1334145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1335145246Sbrooks break; 1336145246Sbrooks 1337149020Sbz case EXT_DSTOPTS: 1338149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1339149020Sbz break; 1340149020Sbz 1341145246Sbrooks case EXT_AH: 1342145246Sbrooks cmd->arg1 |= EXT_AH; 1343145246Sbrooks break; 1344145246Sbrooks 1345145246Sbrooks case EXT_ESP: 1346145246Sbrooks cmd->arg1 |= EXT_ESP; 1347145246Sbrooks break; 1348145246Sbrooks 1349169245Sbz case EXT_RTHDR0: 1350169245Sbz cmd->arg1 |= EXT_RTHDR0; 1351169245Sbz break; 1352169245Sbz 1353169245Sbz case EXT_RTHDR2: 1354169245Sbz cmd->arg1 |= EXT_RTHDR2; 1355169245Sbz break; 1356169245Sbz 1357145246Sbrooks default: 1358145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1359145246Sbrooks break; 1360145246Sbrooks } 1361145246Sbrooks } 1362145246Sbrooks if (cmd->arg1 == 0 ) 1363145246Sbrooks return 0; 1364145246Sbrooks cmd->opcode = O_EXT_HDR; 1365145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1366145246Sbrooks return 1; 1367145246Sbrooks} 1368145246Sbrooks 1369145246Sbrooksvoid 1370145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1371145246Sbrooks{ 1372145246Sbrooks char sep = ' '; 1373145246Sbrooks 1374145246Sbrooks printf(" extension header:"); 1375145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1376145246Sbrooks printf("%cfragmentation", sep); 1377145246Sbrooks sep = ','; 1378145246Sbrooks } 1379145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1380145246Sbrooks printf("%chop options", sep); 1381145246Sbrooks sep = ','; 1382145246Sbrooks } 1383145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1384145246Sbrooks printf("%crouting options", sep); 1385145246Sbrooks sep = ','; 1386145246Sbrooks } 1387169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1388169245Sbz printf("%crthdr0", sep); 1389169245Sbz sep = ','; 1390169245Sbz } 1391169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1392169245Sbz printf("%crthdr2", sep); 1393169245Sbz sep = ','; 1394169245Sbz } 1395149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1396149020Sbz printf("%cdestination options", sep); 1397149020Sbz sep = ','; 1398149020Sbz } 1399145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1400145246Sbrooks printf("%cauthentication header", sep); 1401145246Sbrooks sep = ','; 1402145246Sbrooks } 1403145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1404145246Sbrooks printf("%cencapsulated security payload", sep); 1405145246Sbrooks } 1406145246Sbrooks} 1407145246Sbrooks 140898943Sluigi/* 140998943Sluigi * show_ipfw() prints the body of an ipfw rule. 141098943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 141198943Sluigi * a helper function to produce these entries if not provided explicitly. 1412102087Sluigi * The first argument is the list of fields we have, the second is 1413102087Sluigi * the list of fields we want to be printed. 1414101978Sluigi * 1415102087Sluigi * Special cases if we have provided a MAC header: 1416102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1417102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1418102087Sluigi * 1419102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 142098943Sluigi */ 1421101978Sluigi#define HAVE_PROTO 0x0001 1422101978Sluigi#define HAVE_SRCIP 0x0002 1423101978Sluigi#define HAVE_DSTIP 0x0004 1424169139Smaxim#define HAVE_PROTO4 0x0008 1425169139Smaxim#define HAVE_PROTO6 0x0010 1426102087Sluigi#define HAVE_OPTIONS 0x8000 142798943Sluigi 1428101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 142998943Sluigistatic void 1430102087Sluigishow_prerequisites(int *flags, int want, int cmd) 143198943Sluigi{ 1432123495Sluigi if (comment_only) 1433123495Sluigi return; 1434102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1435102087Sluigi *flags |= HAVE_OPTIONS; 1436102087Sluigi 1437102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1438102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1439146894Smlaier if ( (*flags & HAVE_PROTO4)) 1440146894Smlaier printf(" ip4"); 1441146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1442146894Smlaier printf(" ip6"); 1443146894Smlaier else 1444146894Smlaier printf(" ip"); 1445146894Smlaier 1446102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1447102087Sluigi printf(" from any"); 1448102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1449102087Sluigi printf(" to any"); 1450102087Sluigi } 145198943Sluigi *flags |= want; 145298943Sluigi} 145398943Sluigi 145498943Sluigistatic void 1455112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 145698943Sluigi{ 1457107291Skeramida static int twidth = 0; 145898943Sluigi int l; 1459158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1460117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 146198943Sluigi int proto = 0; /* default */ 146298943Sluigi int flags = 0; /* prerequisites */ 146398943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1464136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 146598943Sluigi int or_block = 0; /* we are in an or block */ 1466117328Sluigi uint32_t set_disable; 146798943Sluigi 1468115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1469101628Sluigi 1470101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1471101628Sluigi if (!show_sets) 1472101628Sluigi return; 1473101628Sluigi else 1474101628Sluigi printf("# DISABLED "); 1475101628Sluigi } 147698943Sluigi printf("%05u ", rule->rulenum); 147798943Sluigi 1478117469Sluigi if (pcwidth>0 || bcwidth>0) 1479115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1480115793Sticso bcwidth, align_uint64(&rule->bcnt)); 148198943Sluigi 1482117472Sluigi if (do_time == 2) 1483117472Sluigi printf("%10u ", rule->timestamp); 1484117472Sluigi else if (do_time == 1) { 1485107291Skeramida char timestr[30]; 1486107291Skeramida time_t t = (time_t)0; 1487107291Skeramida 1488107291Skeramida if (twidth == 0) { 1489107291Skeramida strcpy(timestr, ctime(&t)); 1490107291Skeramida *strchr(timestr, '\n') = '\0'; 1491107291Skeramida twidth = strlen(timestr); 1492107291Skeramida } 149398943Sluigi if (rule->timestamp) { 1494107291Skeramida t = _long_to_time(rule->timestamp); 149598943Sluigi 149698943Sluigi strcpy(timestr, ctime(&t)); 149798943Sluigi *strchr(timestr, '\n') = '\0'; 149898943Sluigi printf("%s ", timestr); 149998943Sluigi } else { 1500107291Skeramida printf("%*s", twidth, " "); 150198943Sluigi } 150298943Sluigi } 150398943Sluigi 1504101628Sluigi if (show_sets) 1505101628Sluigi printf("set %d ", rule->set); 1506101628Sluigi 150798943Sluigi /* 1508107289Sluigi * print the optional "match probability" 1509107289Sluigi */ 1510107289Sluigi if (rule->cmd_len > 0) { 1511107289Sluigi cmd = rule->cmd ; 1512107289Sluigi if (cmd->opcode == O_PROB) { 1513107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1514107289Sluigi double d = 1.0 * p->d[0]; 1515107289Sluigi 1516107289Sluigi d = (d / 0x7fffffff); 1517107289Sluigi printf("prob %f ", d); 1518107289Sluigi } 1519107289Sluigi } 1520107289Sluigi 1521107289Sluigi /* 152298943Sluigi * first print actions 152398943Sluigi */ 152498943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 152598943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 152698943Sluigi switch(cmd->opcode) { 152798943Sluigi case O_CHECK_STATE: 152898943Sluigi printf("check-state"); 1529102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 153098943Sluigi break; 153198943Sluigi 153298943Sluigi case O_ACCEPT: 153398943Sluigi printf("allow"); 153498943Sluigi break; 153598943Sluigi 153698943Sluigi case O_COUNT: 153798943Sluigi printf("count"); 153898943Sluigi break; 153998943Sluigi 154098943Sluigi case O_DENY: 154198943Sluigi printf("deny"); 154298943Sluigi break; 154398943Sluigi 154499475Sluigi case O_REJECT: 154599475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 154699475Sluigi printf("reset"); 154799475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 154899475Sluigi printf("reject"); 154999475Sluigi else 155099475Sluigi print_reject_code(cmd->arg1); 155199475Sluigi break; 155299475Sluigi 1553149020Sbz case O_UNREACH6: 1554149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1555149020Sbz printf("reset6"); 1556149020Sbz else 1557149020Sbz print_unreach6_code(cmd->arg1); 1558149020Sbz break; 1559149020Sbz 1560159636Soleg case O_SKIPTO: 1561159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 156298943Sluigi break; 156398943Sluigi 156498943Sluigi case O_PIPE: 1565159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1566159636Soleg break; 1567159636Soleg 156898943Sluigi case O_QUEUE: 1569159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1570159636Soleg break; 1571159636Soleg 157298943Sluigi case O_DIVERT: 1573159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1574159636Soleg break; 1575159636Soleg 157698943Sluigi case O_TEE: 1577159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1578159636Soleg break; 1579159636Soleg 1580141351Sglebius case O_NETGRAPH: 1581159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1582159636Soleg break; 1583159636Soleg 1584141351Sglebius case O_NGTEE: 1585159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1586159636Soleg break; 1587141351Sglebius 158898943Sluigi case O_FORWARD_IP: 158998943Sluigi { 159098943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 159198943Sluigi 1592161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1593161424Sjulian printf("fwd tablearg"); 1594161424Sjulian } else { 1595161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1596161424Sjulian } 159798943Sluigi if (s->sa.sin_port) 1598103241Sluigi printf(",%d", s->sa.sin_port); 159998943Sluigi } 160098943Sluigi break; 160198943Sluigi 160298943Sluigi case O_LOG: /* O_LOG is printed last */ 160398943Sluigi logptr = (ipfw_insn_log *)cmd; 160498943Sluigi break; 160598943Sluigi 1606136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1607136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1608136071Sgreen break; 1609136071Sgreen 1610158879Soleg case O_TAG: 1611158879Soleg tagptr = cmd; 1612158879Soleg break; 1613158879Soleg 1614165648Spiso case O_NAT: 1615176517Spiso PRINT_UINT_ARG("nat ", cmd->arg1); 1616165648Spiso break; 1617165648Spiso 161898943Sluigi default: 1619136071Sgreen printf("** unrecognized action %d len %d ", 162098943Sluigi cmd->opcode, cmd->len); 162198943Sluigi } 162298943Sluigi } 162398943Sluigi if (logptr) { 162498943Sluigi if (logptr->max_log > 0) 162599909Sluigi printf(" log logamount %d", logptr->max_log); 162698943Sluigi else 162799909Sluigi printf(" log"); 162898943Sluigi } 1629136071Sgreen if (altqptr) { 1630136071Sgreen const char *qname; 1631102087Sluigi 1632136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1633136071Sgreen if (qname == NULL) 1634136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1635136071Sgreen else 1636136071Sgreen printf(" altq %s", qname); 1637136071Sgreen } 1638158879Soleg if (tagptr) { 1639158879Soleg if (tagptr->len & F_NOT) 1640159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1641158879Soleg else 1642159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1643158879Soleg } 1644136071Sgreen 164598943Sluigi /* 1646102087Sluigi * then print the body. 164798943Sluigi */ 1648146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1649146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1650146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1651146894Smlaier continue; 1652146894Smlaier if (cmd->opcode == O_IP4) { 1653146894Smlaier flags |= HAVE_PROTO4; 1654146894Smlaier break; 1655146894Smlaier } else if (cmd->opcode == O_IP6) { 1656146894Smlaier flags |= HAVE_PROTO6; 1657146894Smlaier break; 1658146894Smlaier } 1659146894Smlaier } 1660102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1661146894Smlaier if (!do_compact) { 1662146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1663146894Smlaier printf(" from any to any"); 1664146894Smlaier } 1665102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1666102087Sluigi } 1667102087Sluigi 1668123495Sluigi if (comment_only) 1669123495Sluigi comment = "..."; 1670123495Sluigi 167198943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 167298943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 167399475Sluigi /* useful alias */ 167499475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 167598943Sluigi 1676123495Sluigi if (comment_only) { 1677123495Sluigi if (cmd->opcode != O_NOP) 1678123495Sluigi continue; 1679123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1680123495Sluigi return; 1681123495Sluigi } 1682123495Sluigi 1683102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1684102087Sluigi 168598943Sluigi switch(cmd->opcode) { 1686117577Sluigi case O_PROB: 1687107289Sluigi break; /* done already */ 1688107289Sluigi 168998943Sluigi case O_PROBE_STATE: 169098943Sluigi break; /* no need to print anything here */ 169198943Sluigi 169298943Sluigi case O_IP_SRC: 1693130281Sru case O_IP_SRC_LOOKUP: 169498943Sluigi case O_IP_SRC_MASK: 169598943Sluigi case O_IP_SRC_ME: 169698943Sluigi case O_IP_SRC_SET: 1697102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 169898943Sluigi if (!(flags & HAVE_SRCIP)) 169998943Sluigi printf(" from"); 170098943Sluigi if ((cmd->len & F_OR) && !or_block) 170198943Sluigi printf(" {"); 1702102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1703102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 170498943Sluigi flags |= HAVE_SRCIP; 170598943Sluigi break; 170698943Sluigi 170798943Sluigi case O_IP_DST: 1708130281Sru case O_IP_DST_LOOKUP: 170998943Sluigi case O_IP_DST_MASK: 171098943Sluigi case O_IP_DST_ME: 171198943Sluigi case O_IP_DST_SET: 1712102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 171398943Sluigi if (!(flags & HAVE_DSTIP)) 171498943Sluigi printf(" to"); 171598943Sluigi if ((cmd->len & F_OR) && !or_block) 171698943Sluigi printf(" {"); 1717102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1718102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 171998943Sluigi flags |= HAVE_DSTIP; 172098943Sluigi break; 172198943Sluigi 1722145246Sbrooks case O_IP6_SRC: 1723145246Sbrooks case O_IP6_SRC_MASK: 1724145246Sbrooks case O_IP6_SRC_ME: 1725147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1726145246Sbrooks if (!(flags & HAVE_SRCIP)) 1727145246Sbrooks printf(" from"); 1728145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1729145246Sbrooks printf(" {"); 1730145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1731145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1732145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1733145246Sbrooks break; 1734145246Sbrooks 1735145246Sbrooks case O_IP6_DST: 1736145246Sbrooks case O_IP6_DST_MASK: 1737145246Sbrooks case O_IP6_DST_ME: 1738145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1739145246Sbrooks if (!(flags & HAVE_DSTIP)) 1740145246Sbrooks printf(" to"); 1741145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1742145246Sbrooks printf(" {"); 1743145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1744145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1745145246Sbrooks flags |= HAVE_DSTIP; 1746145246Sbrooks break; 1747145246Sbrooks 1748145246Sbrooks case O_FLOW6ID: 1749145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1750145246Sbrooks flags |= HAVE_OPTIONS; 1751145246Sbrooks break; 1752145246Sbrooks 175398943Sluigi case O_IP_DSTPORT: 1754102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 175598943Sluigi case O_IP_SRCPORT: 1756102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1757101641Sluigi if ((cmd->len & F_OR) && !or_block) 1758101641Sluigi printf(" {"); 1759172306Smaxim if (cmd->len & F_NOT) 1760172306Smaxim printf(" not"); 1761102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1762102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 176398943Sluigi break; 176498943Sluigi 176598943Sluigi case O_PROTO: { 1766145246Sbrooks struct protoent *pe = NULL; 176798943Sluigi 176898943Sluigi if ((cmd->len & F_OR) && !or_block) 176998943Sluigi printf(" {"); 177098943Sluigi if (cmd->len & F_NOT) 177198943Sluigi printf(" not"); 177298943Sluigi proto = cmd->arg1; 1773145567Sbrooks pe = getprotobynumber(cmd->arg1); 1774146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1775146894Smlaier !(flags & HAVE_PROTO)) 1776146894Smlaier show_prerequisites(&flags, 1777146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1778102087Sluigi if (flags & HAVE_OPTIONS) 1779102087Sluigi printf(" proto"); 178098943Sluigi if (pe) 178198943Sluigi printf(" %s", pe->p_name); 178298943Sluigi else 178398943Sluigi printf(" %u", cmd->arg1); 178498943Sluigi } 178598943Sluigi flags |= HAVE_PROTO; 178698943Sluigi break; 1787106505Smaxim 178898943Sluigi default: /*options ... */ 1789146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1790146894Smlaier if (((cmd->opcode == O_IP6) && 1791146894Smlaier (flags & HAVE_PROTO6)) || 1792146894Smlaier ((cmd->opcode == O_IP4) && 1793146894Smlaier (flags & HAVE_PROTO4))) 1794146894Smlaier break; 1795102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 179698943Sluigi if ((cmd->len & F_OR) && !or_block) 179798943Sluigi printf(" {"); 179898943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 179998943Sluigi printf(" not"); 180098943Sluigi switch(cmd->opcode) { 1801169139Smaxim case O_MACADDR2: { 1802169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1803169139Smaxim 1804169139Smaxim printf(" MAC"); 1805169139Smaxim print_mac(m->addr, m->mask); 1806169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1807169139Smaxim } 1808169139Smaxim break; 1809169139Smaxim 1810169139Smaxim case O_MAC_TYPE: 1811169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1812169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1813169139Smaxim break; 1814169139Smaxim 1815169139Smaxim 181698943Sluigi case O_FRAG: 181798943Sluigi printf(" frag"); 181898943Sluigi break; 181998943Sluigi 182098943Sluigi case O_IN: 182198943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 182298943Sluigi break; 182398943Sluigi 1824136073Sgreen case O_DIVERTED: 1825136073Sgreen switch (cmd->arg1) { 1826136073Sgreen case 3: 1827136073Sgreen printf(" diverted"); 1828136073Sgreen break; 1829136073Sgreen case 1: 1830136073Sgreen printf(" diverted-loopback"); 1831136073Sgreen break; 1832136073Sgreen case 2: 1833136073Sgreen printf(" diverted-output"); 1834136073Sgreen break; 1835136073Sgreen default: 1836136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1837136073Sgreen break; 1838136073Sgreen } 1839136073Sgreen break; 1840136073Sgreen 184198943Sluigi case O_LAYER2: 184298943Sluigi printf(" layer2"); 184398943Sluigi break; 184498943Sluigi case O_XMIT: 184598943Sluigi case O_RECV: 1846140423Sglebius case O_VIA: 1847140423Sglebius { 1848117469Sluigi char const *s; 184998943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 185098943Sluigi 185198943Sluigi if (cmd->opcode == O_XMIT) 185298943Sluigi s = "xmit"; 185398943Sluigi else if (cmd->opcode == O_RECV) 185498943Sluigi s = "recv"; 1855117469Sluigi else /* if (cmd->opcode == O_VIA) */ 185698943Sluigi s = "via"; 185798943Sluigi if (cmdif->name[0] == '\0') 185899475Sluigi printf(" %s %s", s, 185999475Sluigi inet_ntoa(cmdif->p.ip)); 1860140423Sglebius else 1861140423Sglebius printf(" %s %s", s, cmdif->name); 1862140423Sglebius 186398943Sluigi break; 1864140423Sglebius } 186598943Sluigi case O_IPID: 1866116690Sluigi if (F_LEN(cmd) == 1) 1867116690Sluigi printf(" ipid %u", cmd->arg1 ); 1868116690Sluigi else 1869116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1870116690Sluigi O_IPID); 187198943Sluigi break; 187298943Sluigi 187398943Sluigi case O_IPTTL: 1874116690Sluigi if (F_LEN(cmd) == 1) 1875116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1876116690Sluigi else 1877116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1878116690Sluigi O_IPTTL); 187998943Sluigi break; 188098943Sluigi 188198943Sluigi case O_IPVER: 188298943Sluigi printf(" ipver %u", cmd->arg1 ); 188398943Sluigi break; 188498943Sluigi 188599475Sluigi case O_IPPRECEDENCE: 188699475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 188799475Sluigi break; 188899475Sluigi 188998943Sluigi case O_IPLEN: 1890116690Sluigi if (F_LEN(cmd) == 1) 1891116690Sluigi printf(" iplen %u", cmd->arg1 ); 1892116690Sluigi else 1893116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1894116690Sluigi O_IPLEN); 189598943Sluigi break; 189698943Sluigi 1897101116Sluigi case O_IPOPT: 189898943Sluigi print_flags("ipoptions", cmd, f_ipopts); 189998943Sluigi break; 190098943Sluigi 190199475Sluigi case O_IPTOS: 190299475Sluigi print_flags("iptos", cmd, f_iptos); 190399475Sluigi break; 190499475Sluigi 190599475Sluigi case O_ICMPTYPE: 190699475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 190799475Sluigi break; 190899475Sluigi 190998943Sluigi case O_ESTAB: 191098943Sluigi printf(" established"); 191198943Sluigi break; 191298943Sluigi 1913136075Sgreen case O_TCPDATALEN: 1914136075Sgreen if (F_LEN(cmd) == 1) 1915136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1916136075Sgreen else 1917136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1918136075Sgreen O_TCPDATALEN); 1919136075Sgreen break; 1920136075Sgreen 192198943Sluigi case O_TCPFLAGS: 192298943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 192398943Sluigi break; 192498943Sluigi 192598943Sluigi case O_TCPOPTS: 192698943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 192798943Sluigi break; 192898943Sluigi 192998943Sluigi case O_TCPWIN: 193098943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 193198943Sluigi break; 193298943Sluigi 193398943Sluigi case O_TCPACK: 193498943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 193598943Sluigi break; 193698943Sluigi 193798943Sluigi case O_TCPSEQ: 193898943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 193998943Sluigi break; 194098943Sluigi 194198943Sluigi case O_UID: 194298943Sluigi { 194398943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 194498943Sluigi 194598943Sluigi if (pwd) 194698943Sluigi printf(" uid %s", pwd->pw_name); 194798943Sluigi else 194898943Sluigi printf(" uid %u", cmd32->d[0]); 194998943Sluigi } 195098943Sluigi break; 195198943Sluigi 195298943Sluigi case O_GID: 195398943Sluigi { 195498943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 195598943Sluigi 195698943Sluigi if (grp) 195798943Sluigi printf(" gid %s", grp->gr_name); 195898943Sluigi else 195998943Sluigi printf(" gid %u", cmd32->d[0]); 196098943Sluigi } 196198943Sluigi break; 196298943Sluigi 1963133600Scsjp case O_JAIL: 1964133600Scsjp printf(" jail %d", cmd32->d[0]); 1965133600Scsjp break; 1966133600Scsjp 1967112250Scjc case O_VERREVPATH: 1968112250Scjc printf(" verrevpath"); 1969112250Scjc break; 1970116919Sluigi 1971128575Sandre case O_VERSRCREACH: 1972128575Sandre printf(" versrcreach"); 1973128575Sandre break; 1974128575Sandre 1975133387Sandre case O_ANTISPOOF: 1976133387Sandre printf(" antispoof"); 1977133387Sandre break; 1978133387Sandre 1979117241Sluigi case O_IPSEC: 1980117241Sluigi printf(" ipsec"); 1981117241Sluigi break; 1982117241Sluigi 1983117469Sluigi case O_NOP: 1984117626Sluigi comment = (char *)(cmd + 1); 1985117469Sluigi break; 1986117469Sluigi 198798943Sluigi case O_KEEP_STATE: 198898943Sluigi printf(" keep-state"); 198998943Sluigi break; 199098943Sluigi 1991159636Soleg case O_LIMIT: { 199298943Sluigi struct _s_x *p = limit_masks; 199398943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1994117328Sluigi uint8_t x = c->limit_mask; 1995117469Sluigi char const *comma = " "; 199698943Sluigi 199798943Sluigi printf(" limit"); 1998117577Sluigi for (; p->x != 0 ; p++) 199999909Sluigi if ((x & p->x) == p->x) { 200098943Sluigi x &= ~p->x; 200198943Sluigi printf("%s%s", comma, p->s); 200298943Sluigi comma = ","; 200398943Sluigi } 2004159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 200598943Sluigi break; 2006159636Soleg } 200798943Sluigi 2008146894Smlaier case O_IP6: 2009152923Sume printf(" ip6"); 2010145246Sbrooks break; 2011145246Sbrooks 2012146894Smlaier case O_IP4: 2013152923Sume printf(" ip4"); 2014146894Smlaier break; 2015146894Smlaier 2016145246Sbrooks case O_ICMP6TYPE: 2017145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2018145246Sbrooks break; 2019145246Sbrooks 2020145246Sbrooks case O_EXT_HDR: 2021145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2022145246Sbrooks break; 2023145246Sbrooks 2024158879Soleg case O_TAGGED: 2025158879Soleg if (F_LEN(cmd) == 1) 2026159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2027158879Soleg else 2028159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2029159636Soleg O_TAGGED); 2030158879Soleg break; 2031158879Soleg 203298943Sluigi default: 203398943Sluigi printf(" [opcode %d len %d]", 203498943Sluigi cmd->opcode, cmd->len); 203598943Sluigi } 203698943Sluigi } 203798943Sluigi if (cmd->len & F_OR) { 203898943Sluigi printf(" or"); 203998943Sluigi or_block = 1; 204098943Sluigi } else if (or_block) { 204198943Sluigi printf(" }"); 204298943Sluigi or_block = 0; 204398943Sluigi } 204498943Sluigi } 2045102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2046117626Sluigi if (comment) 2047117626Sluigi printf(" // %s", comment); 204898943Sluigi printf("\n"); 204998943Sluigi} 205098943Sluigi 205198943Sluigistatic void 2052112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 205398943Sluigi{ 205498943Sluigi struct protoent *pe; 205598943Sluigi struct in_addr a; 2056115793Sticso uint16_t rulenum; 2057159160Smlaier char buf[INET6_ADDRSTRLEN]; 205898943Sluigi 205998943Sluigi if (!do_expired) { 206098943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 206198943Sluigi return; 206298943Sluigi } 2063115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2064117328Sluigi printf("%05d", rulenum); 2065117469Sluigi if (pcwidth>0 || bcwidth>0) 2066117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2067117328Sluigi align_uint64(&d->pcnt), bcwidth, 2068117328Sluigi align_uint64(&d->bcnt), d->expire); 206998943Sluigi switch (d->dyn_type) { 207098943Sluigi case O_LIMIT_PARENT: 207198943Sluigi printf(" PARENT %d", d->count); 207298943Sluigi break; 207398943Sluigi case O_LIMIT: 207498943Sluigi printf(" LIMIT"); 207598943Sluigi break; 207698943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2077106505Smaxim printf(" STATE"); 207898943Sluigi break; 207998943Sluigi } 208098943Sluigi 208198943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 208298943Sluigi printf(" %s", pe->p_name); 208398943Sluigi else 208498943Sluigi printf(" proto %u", d->id.proto); 208598943Sluigi 2086159160Smlaier if (d->id.addr_type == 4) { 2087159160Smlaier a.s_addr = htonl(d->id.src_ip); 2088159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 208998943Sluigi 2090159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2091159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2092159160Smlaier } else if (d->id.addr_type == 6) { 2093159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2094159160Smlaier sizeof(buf)), d->id.src_port); 2095159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2096159160Smlaier sizeof(buf)), d->id.dst_port); 2097159160Smlaier } else 2098159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2099159160Smlaier 210098943Sluigi printf("\n"); 210198943Sluigi} 210298943Sluigi 2103117469Sluigistatic int 210498943Sluigisort_q(const void *pa, const void *pb) 210598943Sluigi{ 210698943Sluigi int rev = (do_sort < 0); 210798943Sluigi int field = rev ? -do_sort : do_sort; 210898943Sluigi long long res = 0; 210998943Sluigi const struct dn_flow_queue *a = pa; 211098943Sluigi const struct dn_flow_queue *b = pb; 211198943Sluigi 211298943Sluigi switch (field) { 211398943Sluigi case 1: /* pkts */ 211498943Sluigi res = a->len - b->len; 211598943Sluigi break; 211698943Sluigi case 2: /* bytes */ 211798943Sluigi res = a->len_bytes - b->len_bytes; 211898943Sluigi break; 211998943Sluigi 212098943Sluigi case 3: /* tot pkts */ 212198943Sluigi res = a->tot_pkts - b->tot_pkts; 212298943Sluigi break; 212398943Sluigi 212498943Sluigi case 4: /* tot bytes */ 212598943Sluigi res = a->tot_bytes - b->tot_bytes; 212698943Sluigi break; 212798943Sluigi } 212898943Sluigi if (res < 0) 212998943Sluigi res = -1; 213098943Sluigi if (res > 0) 213198943Sluigi res = 1; 213298943Sluigi return (int)(rev ? res : -res); 213398943Sluigi} 213498943Sluigi 213598943Sluigistatic void 213698943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 213798943Sluigi{ 213898943Sluigi int l; 2139145246Sbrooks int index_printed, indexes = 0; 2140145246Sbrooks char buff[255]; 2141145246Sbrooks struct protoent *pe; 214298943Sluigi 214398943Sluigi if (fs->rq_elements == 0) 214498943Sluigi return; 214598943Sluigi 214698943Sluigi if (do_sort != 0) 214798943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2148145246Sbrooks 2149145246Sbrooks /* Print IPv4 flows */ 2150145246Sbrooks index_printed = 0; 215198943Sluigi for (l = 0; l < fs->rq_elements; l++) { 215298943Sluigi struct in_addr ina; 215398943Sluigi 2154145246Sbrooks /* XXX: Should check for IPv4 flows */ 2155145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2156145246Sbrooks continue; 2157145246Sbrooks 2158145246Sbrooks if (!index_printed) { 2159145246Sbrooks index_printed = 1; 2160145246Sbrooks if (indexes > 0) /* currently a no-op */ 2161145246Sbrooks printf("\n"); 2162145246Sbrooks indexes++; 2163145246Sbrooks printf(" " 2164145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2165145246Sbrooks fs->flow_mask.proto, 2166145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2167145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2168145246Sbrooks 2169145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2170145246Sbrooks "____Dest. IP/port____ " 2171145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2172145246Sbrooks } 2173145246Sbrooks 217498943Sluigi printf("%3d ", q[l].hash_slot); 217598943Sluigi pe = getprotobynumber(q[l].id.proto); 217698943Sluigi if (pe) 217798943Sluigi printf("%-4s ", pe->p_name); 217898943Sluigi else 217998943Sluigi printf("%4u ", q[l].id.proto); 2180145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 218198943Sluigi printf("%15s/%-5d ", 218298943Sluigi inet_ntoa(ina), q[l].id.src_port); 218398943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 218498943Sluigi printf("%15s/%-5d ", 218598943Sluigi inet_ntoa(ina), q[l].id.dst_port); 218698943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 218798943Sluigi q[l].tot_pkts, q[l].tot_bytes, 218898943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 218998943Sluigi if (verbose) 219098943Sluigi printf(" S %20qd F %20qd\n", 219198943Sluigi q[l].S, q[l].F); 219298943Sluigi } 2193145246Sbrooks 2194145246Sbrooks /* Print IPv6 flows */ 2195145246Sbrooks index_printed = 0; 2196145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2197145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2198145246Sbrooks continue; 2199145246Sbrooks 2200145246Sbrooks if (!index_printed) { 2201145246Sbrooks index_printed = 1; 2202145246Sbrooks if (indexes > 0) 2203145246Sbrooks printf("\n"); 2204145246Sbrooks indexes++; 2205145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2206145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2207145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2208145246Sbrooks buff, sizeof(buff)); 2209145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2210145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2211145246Sbrooks buff, sizeof(buff) ); 2212145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2213145246Sbrooks 2214145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2215145246Sbrooks "______________Source IPv6/port_______________ " 2216145246Sbrooks "_______________Dest. IPv6/port_______________ " 2217145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2218145246Sbrooks } 2219145246Sbrooks printf("%3d ", q[l].hash_slot); 2220145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2221145246Sbrooks if (pe != NULL) 2222145246Sbrooks printf("%9s ", pe->p_name); 2223145246Sbrooks else 2224145246Sbrooks printf("%9u ", q[l].id.proto); 2225145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2226145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2227145246Sbrooks q[l].id.src_port); 2228145246Sbrooks printf(" %39s/%-5d ", 2229145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2230145246Sbrooks q[l].id.dst_port); 2231145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2232145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2233145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2234145246Sbrooks if (verbose) 2235145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2236145246Sbrooks } 223798943Sluigi} 223898943Sluigi 223998943Sluigistatic void 224098943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 224198943Sluigi{ 224298943Sluigi int l; 224398943Sluigi char qs[30]; 224498943Sluigi char plr[30]; 224598943Sluigi char red[90]; /* Display RED parameters */ 224698943Sluigi 224798943Sluigi l = fs->qsize; 224898943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 224998943Sluigi if (l >= 8192) 225098943Sluigi sprintf(qs, "%d KB", l / 1024); 225198943Sluigi else 225298943Sluigi sprintf(qs, "%d B", l); 225398943Sluigi } else 225498943Sluigi sprintf(qs, "%3d sl.", l); 225598943Sluigi if (fs->plr) 225698943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 225798943Sluigi else 225898943Sluigi plr[0] = '\0'; 225998943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 226098943Sluigi sprintf(red, 226198943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 226298943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 226398943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 226498943Sluigi SCALE_VAL(fs->min_th), 226598943Sluigi SCALE_VAL(fs->max_th), 226698943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 226798943Sluigi else 226898943Sluigi sprintf(red, "droptail"); 226998943Sluigi 227098943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 227198943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 227298943Sluigi} 227398943Sluigi 227498943Sluigistatic void 2275117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 227698943Sluigi{ 2277117469Sluigi int rulenum; 227898943Sluigi void *next = data; 227998943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 228098943Sluigi struct dn_flow_set *fs; 228198943Sluigi struct dn_flow_queue *q; 228298943Sluigi int l; 228398943Sluigi 228498943Sluigi if (ac > 0) 228598943Sluigi rulenum = strtoul(*av++, NULL, 10); 228698943Sluigi else 228798943Sluigi rulenum = 0; 228898943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 228998943Sluigi double b = p->bandwidth; 229098943Sluigi char buf[30]; 229198943Sluigi char prefix[80]; 229298943Sluigi 2293161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 229498943Sluigi break; /* done with pipes, now queues */ 229598943Sluigi 229698943Sluigi /* 229798943Sluigi * compute length, as pipe have variable size 229898943Sluigi */ 229998943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2300117469Sluigi next = (char *)p + l; 230198943Sluigi nbytes -= l; 230298943Sluigi 2303134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 230498943Sluigi continue; 230598943Sluigi 230698943Sluigi /* 230798943Sluigi * Print rate (or clocking interface) 230898943Sluigi */ 230998943Sluigi if (p->if_name[0] != '\0') 231098943Sluigi sprintf(buf, "%s", p->if_name); 231198943Sluigi else if (b == 0) 231298943Sluigi sprintf(buf, "unlimited"); 231398943Sluigi else if (b >= 1000000) 231498943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 231598943Sluigi else if (b >= 1000) 231698943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 231798943Sluigi else 231898943Sluigi sprintf(buf, "%7.3f bit/s ", b); 231998943Sluigi 232098943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 232198943Sluigi p->pipe_nr, buf, p->delay); 232298943Sluigi print_flowset_parms(&(p->fs), prefix); 232398943Sluigi if (verbose) 232498943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2325106505Smaxim 232698943Sluigi q = (struct dn_flow_queue *)(p+1); 232798943Sluigi list_queues(&(p->fs), q); 232898943Sluigi } 232998943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 233098943Sluigi char prefix[80]; 233198943Sluigi 2332161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 233398943Sluigi break; 233498943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2335117469Sluigi next = (char *)fs + l; 233698943Sluigi nbytes -= l; 2337134225Spjd 2338134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2339134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2340134225Spjd continue; 2341134225Spjd } 2342134225Spjd 234398943Sluigi q = (struct dn_flow_queue *)(fs+1); 234498943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 234598943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 234698943Sluigi print_flowset_parms(fs, prefix); 234798943Sluigi list_queues(fs, q); 234898943Sluigi } 234998943Sluigi} 235098943Sluigi 2351101978Sluigi/* 2352101978Sluigi * This one handles all set-related commands 2353101978Sluigi * ipfw set { show | enable | disable } 2354101978Sluigi * ipfw set swap X Y 2355101978Sluigi * ipfw set move X to Y 2356101978Sluigi * ipfw set move rule X to Y 2357101978Sluigi */ 235898943Sluigistatic void 2359101978Sluigisets_handler(int ac, char *av[]) 2360101978Sluigi{ 2361117328Sluigi uint32_t set_disable, masks[2]; 2362101978Sluigi int i, nbytes; 2363117328Sluigi uint16_t rulenum; 2364117328Sluigi uint8_t cmd, new_set; 2365101978Sluigi 2366101978Sluigi ac--; 2367101978Sluigi av++; 2368101978Sluigi 2369101978Sluigi if (!ac) 2370101978Sluigi errx(EX_USAGE, "set needs command"); 2371140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2372101978Sluigi void *data; 2373117469Sluigi char const *msg; 2374101978Sluigi 2375101978Sluigi nbytes = sizeof(struct ip_fw); 2376117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2377117328Sluigi err(EX_OSERR, "calloc"); 2378119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2379101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2380115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2381115793Sticso &set_disable, sizeof(set_disable)); 2382101978Sluigi 2383117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2384117577Sluigi if ((set_disable & (1<<i))) { 2385101978Sluigi printf("%s %d", msg, i); 2386101978Sluigi msg = ""; 2387101978Sluigi } 2388101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2389117655Sluigi for (i = 0; i < RESVD_SET; i++) 2390117577Sluigi if (!(set_disable & (1<<i))) { 2391101978Sluigi printf("%s %d", msg, i); 2392101978Sluigi msg = ""; 2393101978Sluigi } 2394101978Sluigi printf("\n"); 2395140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2396101978Sluigi ac--; av++; 2397101978Sluigi if (ac != 2) 2398101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2399101978Sluigi rulenum = atoi(av[0]); 2400101978Sluigi new_set = atoi(av[1]); 2401117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2402101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2403117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2404101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2405101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2406117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2407140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2408101978Sluigi ac--; av++; 2409140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2410101978Sluigi cmd = 2; 2411101978Sluigi ac--; av++; 2412101978Sluigi } else 2413101978Sluigi cmd = 3; 2414140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2415101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2416101978Sluigi rulenum = atoi(av[0]); 2417101978Sluigi new_set = atoi(av[2]); 2418117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2419101978Sluigi (cmd == 2 && rulenum == 65535) ) 2420101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2421117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2422101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2423101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2424117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2425140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2426140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2427140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2428101978Sluigi 2429101978Sluigi ac--; av++; 2430101978Sluigi masks[0] = masks[1] = 0; 2431101978Sluigi 2432101978Sluigi while (ac) { 2433101978Sluigi if (isdigit(**av)) { 2434101978Sluigi i = atoi(*av); 2435117655Sluigi if (i < 0 || i > RESVD_SET) 2436101978Sluigi errx(EX_DATAERR, 2437101978Sluigi "invalid set number %d\n", i); 2438101978Sluigi masks[which] |= (1<<i); 2439140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2440101978Sluigi which = 0; 2441140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2442101978Sluigi which = 1; 2443101978Sluigi else 2444101978Sluigi errx(EX_DATAERR, 2445101978Sluigi "invalid set command %s\n", *av); 2446101978Sluigi av++; ac--; 2447101978Sluigi } 2448101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2449101978Sluigi errx(EX_DATAERR, 2450101978Sluigi "cannot enable and disable the same set\n"); 2451101978Sluigi 2452117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2453101978Sluigi if (i) 2454101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2455101978Sluigi } else 2456101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2457101978Sluigi} 2458101978Sluigi 2459101978Sluigistatic void 2460109126Sdillonsysctl_handler(int ac, char *av[], int which) 2461109126Sdillon{ 2462109126Sdillon ac--; 2463109126Sdillon av++; 2464109126Sdillon 2465119668Smaxim if (ac == 0) { 2466109126Sdillon warnx("missing keyword to enable/disable\n"); 2467140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2468116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2469116770Sluigi &which, sizeof(which)); 2470140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2471116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2472116770Sluigi &which, sizeof(which)); 2473140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2474116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2475116770Sluigi &which, sizeof(which)); 2476140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2477116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2478116770Sluigi &which, sizeof(which)); 2479140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2480116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2481116770Sluigi &which, sizeof(which)); 2482140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2483136071Sgreen altq_set_enabled(which); 2484109126Sdillon } else { 2485109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2486109126Sdillon } 2487109126Sdillon} 2488109126Sdillon 2489109126Sdillonstatic void 2490117469Sluigilist(int ac, char *av[], int show_counters) 249198943Sluigi{ 249298943Sluigi struct ip_fw *r; 249398943Sluigi ipfw_dyn_rule *dynrules, *d; 249498943Sluigi 2495117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2496117469Sluigi char *lim; 2497117469Sluigi void *data = NULL; 2498112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 249998943Sluigi int exitval = EX_OK; 250098943Sluigi int lac; 250198943Sluigi char **lav; 2502117469Sluigi u_long rnum, last; 250398943Sluigi char *endptr; 250498943Sluigi int seen = 0; 2505170923Smaxim uint8_t set; 250698943Sluigi 250798943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 250898943Sluigi int nalloc = 1024; /* start somewhere... */ 250998943Sluigi 2510135036Smaxim last = 0; 2511135036Smaxim 2512117328Sluigi if (test_only) { 2513117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2514117328Sluigi return; 2515117328Sluigi } 2516117328Sluigi 251798943Sluigi ac--; 251898943Sluigi av++; 251998943Sluigi 252098943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 252198943Sluigi nbytes = nalloc; 252298943Sluigi 252398943Sluigi while (nbytes >= nalloc) { 252498943Sluigi nalloc = nalloc * 2 + 200; 252598943Sluigi nbytes = nalloc; 252698943Sluigi if ((data = realloc(data, nbytes)) == NULL) 252798943Sluigi err(EX_OSERR, "realloc"); 2528119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 252998943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 253098943Sluigi do_pipe ? "DUMMYNET" : "FW"); 253198943Sluigi } 253298943Sluigi 253398943Sluigi if (do_pipe) { 253498943Sluigi list_pipes(data, nbytes, ac, av); 253598943Sluigi goto done; 253698943Sluigi } 253798943Sluigi 253898943Sluigi /* 253998943Sluigi * Count static rules. They have variable size so we 254098943Sluigi * need to scan the list to count them. 254198943Sluigi */ 2542117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2543117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2544117469Sluigi ++nstat, r = NEXT(r) ) 254598943Sluigi ; /* nothing */ 254698943Sluigi 254798943Sluigi /* 254898943Sluigi * Count dynamic rules. This is easier as they have 254998943Sluigi * fixed size. 255098943Sluigi */ 2551117469Sluigi r = NEXT(r); 255298943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2553117469Sluigi n = (char *)r - (char *)data; 255498943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 255598943Sluigi 2556112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2557112189Smaxim bcwidth = pcwidth = 0; 2558117469Sluigi if (show_counters) { 2559117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2560170923Smaxim /* skip rules from another set */ 2561170923Smaxim if (use_set && r->set != use_set - 1) 2562170923Smaxim continue; 2563170923Smaxim 2564112189Smaxim /* packet counter */ 2565115793Sticso width = snprintf(NULL, 0, "%llu", 2566115793Sticso align_uint64(&r->pcnt)); 2567112189Smaxim if (width > pcwidth) 2568112189Smaxim pcwidth = width; 2569112189Smaxim 2570112189Smaxim /* byte counter */ 2571115793Sticso width = snprintf(NULL, 0, "%llu", 2572115793Sticso align_uint64(&r->bcnt)); 2573112189Smaxim if (width > bcwidth) 2574112189Smaxim bcwidth = width; 2575112189Smaxim } 2576112189Smaxim } 2577112189Smaxim if (do_dynamic && ndyn) { 2578112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2579170923Smaxim if (use_set) { 2580170923Smaxim /* skip rules from another set */ 2581171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2582170923Smaxim &set, sizeof(uint8_t)); 2583170923Smaxim if (set != use_set - 1) 2584170923Smaxim continue; 2585170923Smaxim } 2586115793Sticso width = snprintf(NULL, 0, "%llu", 2587115793Sticso align_uint64(&d->pcnt)); 2588112189Smaxim if (width > pcwidth) 2589112189Smaxim pcwidth = width; 2590112189Smaxim 2591115793Sticso width = snprintf(NULL, 0, "%llu", 2592115793Sticso align_uint64(&d->bcnt)); 2593112189Smaxim if (width > bcwidth) 2594112189Smaxim bcwidth = width; 2595112189Smaxim } 2596112189Smaxim } 259798943Sluigi /* if no rule numbers were specified, list all rules */ 259898943Sluigi if (ac == 0) { 2599170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2600170923Smaxim if (use_set && r->set != use_set - 1) 2601170923Smaxim continue; 2602112189Smaxim show_ipfw(r, pcwidth, bcwidth); 2603170923Smaxim } 260498943Sluigi 260598943Sluigi if (do_dynamic && ndyn) { 260698943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 2607170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2608170923Smaxim if (use_set) { 2609171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2610170923Smaxim &set, sizeof(uint8_t)); 2611170923Smaxim if (set != use_set - 1) 2612170923Smaxim continue; 2613170923Smaxim } 2614112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 261598943Sluigi } 2616170923Smaxim } 261798943Sluigi goto done; 261898943Sluigi } 261998943Sluigi 262098943Sluigi /* display specific rules requested on command line */ 262198943Sluigi 262298943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 262398943Sluigi /* convert command line rule # */ 2624117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2625117469Sluigi if (*endptr == '-') 2626117469Sluigi last = strtoul(endptr+1, &endptr, 10); 262798943Sluigi if (*endptr) { 262898943Sluigi exitval = EX_USAGE; 262998943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 263098943Sluigi continue; 263198943Sluigi } 2632117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2633117469Sluigi if (r->rulenum > last) 263498943Sluigi break; 2635170923Smaxim if (use_set && r->set != use_set - 1) 2636170923Smaxim continue; 2637117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2638112189Smaxim show_ipfw(r, pcwidth, bcwidth); 263998943Sluigi seen = 1; 264098943Sluigi } 264198943Sluigi } 264298943Sluigi if (!seen) { 264398943Sluigi /* give precedence to other error(s) */ 264498943Sluigi if (exitval == EX_OK) 264598943Sluigi exitval = EX_UNAVAILABLE; 264698943Sluigi warnx("rule %lu does not exist", rnum); 264798943Sluigi } 264898943Sluigi } 264998943Sluigi 265098943Sluigi if (do_dynamic && ndyn) { 265198943Sluigi printf("## Dynamic rules:\n"); 265298943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2653145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2654117469Sluigi if (*endptr == '-') 2655117469Sluigi last = strtoul(endptr+1, &endptr, 10); 265698943Sluigi if (*endptr) 265798943Sluigi /* already warned */ 265898943Sluigi continue; 265998943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2660115793Sticso uint16_t rulenum; 2661115793Sticso 2662115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2663115793Sticso if (rulenum > rnum) 266498943Sluigi break; 2665170923Smaxim if (use_set) { 2666171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2667170923Smaxim &set, sizeof(uint8_t)); 2668170923Smaxim if (set != use_set - 1) 2669170923Smaxim continue; 2670170923Smaxim } 2671117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2672112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 267398943Sluigi } 267498943Sluigi } 267598943Sluigi } 267698943Sluigi 267798943Sluigi ac = 0; 267898943Sluigi 267998943Sluigidone: 268098943Sluigi free(data); 268198943Sluigi 268298943Sluigi if (exitval != EX_OK) 268398943Sluigi exit(exitval); 2684117469Sluigi#undef NEXT 268598943Sluigi} 268698943Sluigi 268798943Sluigistatic void 268898943Sluigishow_usage(void) 268998943Sluigi{ 269098943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 269198943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 269298943Sluigi); 269398943Sluigi exit(EX_USAGE); 269498943Sluigi} 269598943Sluigi 269698943Sluigistatic void 269798943Sluigihelp(void) 269898943Sluigi{ 2699117328Sluigi fprintf(stderr, 2700117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2701123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2702117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2703117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2704117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2705165648Spiso"nat N config {ip IPADDR|if IFNAME|log|deny_in|same_ports|unreg_only|reset|\n" 2706165648Spiso" reverse|proxy_only|redirect_addr linkspec|\n" 2707165648Spiso" redirect_port linkspec|redirect_proto linkspec}\n" 2708117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2709170923Smaxim"set N {show|list|zero|resetlog|delete} [N{,N}] | flush\n" 2710130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 271198943Sluigi"\n" 2712136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2713149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2714149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2715165648Spiso" pipe N | queue N | nat N\n" 2716136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 271798943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2718145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2719145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2720130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2721145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2722145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2723117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2724117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2725136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2726145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2727145246Sbrooks" {dst-port|src-port} LIST |\n" 2728117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2729117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2730117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2731145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2732117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2733117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2734136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 273598943Sluigi); 273698943Sluigiexit(0); 273798943Sluigi} 273898943Sluigi 273998943Sluigi 274098943Sluigistatic int 274198943Sluigilookup_host (char *host, struct in_addr *ipaddr) 274298943Sluigi{ 274398943Sluigi struct hostent *he; 274498943Sluigi 274598943Sluigi if (!inet_aton(host, ipaddr)) { 274698943Sluigi if ((he = gethostbyname(host)) == NULL) 274798943Sluigi return(-1); 274898943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 274998943Sluigi } 275098943Sluigi return(0); 275198943Sluigi} 275298943Sluigi 275398943Sluigi/* 275498943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 275598943Sluigi * Update length as appropriate. 275698943Sluigi * The following formats are allowed: 275798943Sluigi * me returns O_IP_*_ME 275898943Sluigi * 1.2.3.4 single IP address 275998943Sluigi * 1.2.3.4:5.6.7.8 address:mask 276098943Sluigi * 1.2.3.4/24 address/mask 276198943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2762117328Sluigi * We can have multiple comma-separated address/mask entries. 276398943Sluigi */ 276498943Sluigistatic void 276598943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 276698943Sluigi{ 2767117328Sluigi int len = 0; 2768117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 276998943Sluigi 277098943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 277198943Sluigi 2772140271Sbrooks if (_substrcmp(av, "any") == 0) 277398943Sluigi return; 277498943Sluigi 2775140271Sbrooks if (_substrcmp(av, "me") == 0) { 277698943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 277798943Sluigi return; 277898943Sluigi } 277998943Sluigi 2780140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2781130281Sru char *p = strchr(av + 6, ','); 2782130281Sru 2783130281Sru if (p) 2784130281Sru *p++ = '\0'; 2785130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2786130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2787130281Sru if (p) { 2788130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2789130281Sru d[0] = strtoul(p, NULL, 0); 2790130281Sru } else 2791130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2792130281Sru return; 2793130281Sru } 2794130281Sru 2795117328Sluigi while (av) { 2796117328Sluigi /* 2797117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2798117328Sluigi * ',' indicating another address follows, '{' indicating a 2799117328Sluigi * set of addresses of unspecified size. 2800117328Sluigi */ 2801165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2802117328Sluigi int masklen; 2803165851Smlaier char md, nd; 2804117328Sluigi 280598943Sluigi if (p) { 280698943Sluigi md = *p; 280798943Sluigi *p++ = '\0'; 2808165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2809165851Smlaier nd = *t; 2810165851Smlaier *t = '\0'; 2811165851Smlaier } 2812117328Sluigi } else 2813117328Sluigi md = '\0'; 281498943Sluigi 2815117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 281698943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 281798943Sluigi switch (md) { 281898943Sluigi case ':': 2819117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 282098943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 282198943Sluigi break; 282298943Sluigi case '/': 2823117328Sluigi masklen = atoi(p); 2824117328Sluigi if (masklen == 0) 2825117328Sluigi d[1] = htonl(0); /* mask */ 2826117328Sluigi else if (masklen > 32) 282798943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 282898943Sluigi else 2829117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 283098943Sluigi break; 2831117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2832117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2833117328Sluigi *(--p) = md; 2834117328Sluigi break; 2835117328Sluigi 2836117328Sluigi case ',': /* single address plus continuation */ 2837117328Sluigi *(--p) = md; 2838117328Sluigi /* FALLTHROUGH */ 2839117328Sluigi case 0: /* initialization value */ 284098943Sluigi default: 2841117328Sluigi d[1] = htonl(~0); /* force /32 */ 284298943Sluigi break; 284398943Sluigi } 2844117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2845165851Smlaier if (t) 2846165851Smlaier *t = nd; 2847117328Sluigi /* find next separator */ 284898943Sluigi if (p) 2849117328Sluigi p = strpbrk(p, ",{"); 2850117328Sluigi if (p && *p == '{') { 2851117328Sluigi /* 2852117328Sluigi * We have a set of addresses. They are stored as follows: 2853117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2854117328Sluigi * addr is the base address IN HOST FORMAT 2855117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2856117328Sluigi * the next multiple of 32) with bits set 2857117328Sluigi * for each host in the map. 2858117328Sluigi */ 2859117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 286098943Sluigi int low, high; 2861117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 286298943Sluigi 2863117328Sluigi if (len > 0) 2864117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2865117328Sluigi if (i < 24 || i > 31) 2866117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2867117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2868117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 286998943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 287098943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2871101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2872117328Sluigi map[i] = 0; /* clear map */ 287398943Sluigi 2874117328Sluigi av = p + 1; 2875117328Sluigi low = d[0] & 0xff; 287698943Sluigi high = low + cmd->o.arg1 - 1; 2877117328Sluigi /* 2878117328Sluigi * Here, i stores the previous value when we specify a range 2879117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2880117328Sluigi * have no previous value. 2881117328Sluigi */ 2882116716Sluigi i = -1; /* previous value in a range */ 288398943Sluigi while (isdigit(*av)) { 288498943Sluigi char *s; 2885117328Sluigi int a = strtol(av, &s, 0); 288698943Sluigi 2887117328Sluigi if (s == av) { /* no parameter */ 2888117328Sluigi if (*av != '}') 2889117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2890117328Sluigi if (i != -1) 2891117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2892117328Sluigi break; 2893117328Sluigi } 2894117328Sluigi if (a < low || a > high) 2895117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 289698943Sluigi a, low, high); 289798943Sluigi a -= low; 2898116716Sluigi if (i == -1) /* no previous in range */ 2899116716Sluigi i = a; 2900116716Sluigi else { /* check that range is valid */ 2901116716Sluigi if (i > a) 2902116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2903116716Sluigi i+low, a+low); 2904116716Sluigi if (*s == '-') 2905116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2906116716Sluigi } 2907116716Sluigi for (; i <= a; i++) 2908117328Sluigi map[i/32] |= 1<<(i & 31); 2909116716Sluigi i = -1; 2910116716Sluigi if (*s == '-') 2911116716Sluigi i = a; 2912117328Sluigi else if (*s == '}') 2913116716Sluigi break; 291498943Sluigi av = s+1; 291598943Sluigi } 291698943Sluigi return; 291798943Sluigi } 2918117328Sluigi av = p; 2919117328Sluigi if (av) /* then *av must be a ',' */ 2920117328Sluigi av++; 292198943Sluigi 2922117328Sluigi /* Check this entry */ 2923117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2924117328Sluigi /* 2925117328Sluigi * 'any' turns the entire list into a NOP. 2926117328Sluigi * 'not any' never matches, so it is removed from the 2927117328Sluigi * list unless it is the only item, in which case we 2928117328Sluigi * report an error. 2929117328Sluigi */ 2930117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2931117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2932117328Sluigi errx(EX_DATAERR, "not any never matches"); 2933117328Sluigi } 2934117328Sluigi /* else do nothing and skip this entry */ 2935128067Smaxim return; 2936117328Sluigi } 2937117328Sluigi /* A single IP can be stored in an optimized format */ 2938117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 293998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2940117328Sluigi return; 2941117328Sluigi } 2942117328Sluigi len += 2; /* two words... */ 2943117328Sluigi d += 2; 2944117328Sluigi } /* end while */ 2945162363Sjhay if (len + 1 > F_LEN_MASK) 2946162363Sjhay errx(EX_DATAERR, "address list too long"); 2947117328Sluigi cmd->o.len |= len+1; 294898943Sluigi} 294998943Sluigi 295098943Sluigi 2951145246Sbrooks/* Try to find ipv6 address by hostname */ 2952145246Sbrooksstatic int 2953145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2954145246Sbrooks{ 2955145246Sbrooks struct hostent *he; 2956145246Sbrooks 2957145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2958145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2959145246Sbrooks return(-1); 2960145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2961145246Sbrooks } 2962145246Sbrooks return(0); 2963145246Sbrooks} 2964145246Sbrooks 2965145246Sbrooks 2966145246Sbrooks/* n2mask sets n bits of the mask */ 2967145246Sbrooksstatic void 2968145246Sbrooksn2mask(struct in6_addr *mask, int n) 2969145246Sbrooks{ 2970145246Sbrooks static int minimask[9] = 2971145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2972145246Sbrooks u_char *p; 2973145246Sbrooks 2974145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2975145246Sbrooks p = (u_char *) mask; 2976145246Sbrooks for (; n > 0; p++, n -= 8) { 2977145246Sbrooks if (n >= 8) 2978145246Sbrooks *p = 0xff; 2979145246Sbrooks else 2980145246Sbrooks *p = minimask[n]; 2981145246Sbrooks } 2982145246Sbrooks return; 2983145246Sbrooks} 2984145246Sbrooks 2985145246Sbrooks 298698943Sluigi/* 2987145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2988145246Sbrooks * Update length as appropriate. 2989145246Sbrooks * The following formats are allowed: 2990145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2991145246Sbrooks * me returns O_IP6_*_ME 2992145246Sbrooks * 2993145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2994145246Sbrooks * 03f1::234:123:0342/24 address/mask 2995145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2996145246Sbrooks * 2997145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2998145246Sbrooks * are typically random past the initial prefix. 2999145246Sbrooks * Return 1 on success, 0 on failure. 3000145246Sbrooks */ 3001145246Sbrooksstatic int 3002145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 3003145246Sbrooks{ 3004145246Sbrooks int len = 0; 3005145246Sbrooks struct in6_addr *d = &(cmd->addr6); 3006145246Sbrooks /* 3007145246Sbrooks * Needed for multiple address. 3008145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 3009145246Sbrooks */ 3010145246Sbrooks 3011145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 3012145246Sbrooks 3013145246Sbrooks if (strcmp(av, "any") == 0) 3014145246Sbrooks return (1); 3015145246Sbrooks 3016145246Sbrooks 3017145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 3018145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3019145246Sbrooks return (1); 3020145246Sbrooks } 3021145246Sbrooks 3022145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 3023145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3024145246Sbrooks return (1); 3025145246Sbrooks } 3026145246Sbrooks 3027145246Sbrooks av = strdup(av); 3028145246Sbrooks while (av) { 3029145246Sbrooks /* 3030145246Sbrooks * After the address we can have '/' indicating a mask, 3031145246Sbrooks * or ',' indicating another address follows. 3032145246Sbrooks */ 3033145246Sbrooks 3034145246Sbrooks char *p; 3035145246Sbrooks int masklen; 3036145246Sbrooks char md = '\0'; 3037145246Sbrooks 3038145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 3039145246Sbrooks md = *p; /* save the separator */ 3040145246Sbrooks *p = '\0'; /* terminate address string */ 3041145246Sbrooks p++; /* and skip past it */ 3042145246Sbrooks } 3043145246Sbrooks /* now p points to NULL, mask or next entry */ 3044145246Sbrooks 3045145246Sbrooks /* lookup stores address in *d as a side effect */ 3046145246Sbrooks if (lookup_host6(av, d) != 0) { 3047145246Sbrooks /* XXX: failed. Free memory and go */ 3048145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 3049145246Sbrooks } 3050145246Sbrooks /* next, look at the mask, if any */ 3051145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 3052145246Sbrooks if (masklen > 128 || masklen < 0) 3053145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 3054145246Sbrooks else 3055145246Sbrooks n2mask(&d[1], masklen); 3056145246Sbrooks 3057145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 3058145246Sbrooks 3059145246Sbrooks /* find next separator */ 3060145246Sbrooks 3061145246Sbrooks if (md == '/') { /* find separator past the mask */ 3062145246Sbrooks p = strpbrk(p, ","); 3063145246Sbrooks if (p != NULL) 3064145246Sbrooks p++; 3065145246Sbrooks } 3066145246Sbrooks av = p; 3067145246Sbrooks 3068145246Sbrooks /* Check this entry */ 3069145246Sbrooks if (masklen == 0) { 3070145246Sbrooks /* 3071145246Sbrooks * 'any' turns the entire list into a NOP. 3072145246Sbrooks * 'not any' never matches, so it is removed from the 3073145246Sbrooks * list unless it is the only item, in which case we 3074145246Sbrooks * report an error. 3075145246Sbrooks */ 3076145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3077145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3078145246Sbrooks continue; 3079145246Sbrooks } 3080145246Sbrooks 3081145246Sbrooks /* 3082145246Sbrooks * A single IP can be stored alone 3083145246Sbrooks */ 3084145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3085145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3086145246Sbrooks break; 3087145246Sbrooks } 3088145246Sbrooks 3089145246Sbrooks /* Update length and pointer to arguments */ 3090145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3091145246Sbrooks d += 2; 3092145246Sbrooks } /* end while */ 3093145246Sbrooks 3094145246Sbrooks /* 3095145246Sbrooks * Total length of the command, remember that 1 is the size of 3096145246Sbrooks * the base command. 3097145246Sbrooks */ 3098162363Sjhay if (len + 1 > F_LEN_MASK) 3099162363Sjhay errx(EX_DATAERR, "address list too long"); 3100145246Sbrooks cmd->o.len |= len+1; 3101145246Sbrooks free(av); 3102145246Sbrooks return (1); 3103145246Sbrooks} 3104145246Sbrooks 3105145246Sbrooks/* 3106145246Sbrooks * fills command for ipv6 flow-id filtering 3107145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3108145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3109145246Sbrooks * additional flow-id we want to filter, the basic is 1 3110145246Sbrooks */ 3111145246Sbrooksvoid 3112145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3113145246Sbrooks{ 3114145246Sbrooks u_int32_t type; /* Current flow number */ 3115145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3116145246Sbrooks char *s = av; 3117145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3118145246Sbrooks 3119145246Sbrooks while (s) { 3120145246Sbrooks av = strsep( &s, ",") ; 3121145246Sbrooks type = strtoul(av, &av, 0); 3122145246Sbrooks if (*av != ',' && *av != '\0') 3123145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3124145246Sbrooks if (type > 0xfffff) 3125145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3126145246Sbrooks cmd->d[nflow] |= type; 3127145246Sbrooks nflow++; 3128145246Sbrooks } 3129145246Sbrooks if( nflow > 0 ) { 3130145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3131145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3132145246Sbrooks cmd->o.arg1 = nflow; 3133145246Sbrooks } 3134145246Sbrooks else { 3135145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3136145246Sbrooks } 3137145246Sbrooks} 3138145246Sbrooks 3139145246Sbrooksstatic ipfw_insn * 3140145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3141145246Sbrooks{ 3142145246Sbrooks 3143145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3144145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3145145246Sbrooks ; 3146145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3147145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3148145246Sbrooks } else if (F_LEN(cmd) == 3149145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3150145246Sbrooks /* single IP, no mask*/ 3151145246Sbrooks cmd->opcode = O_IP6_SRC; 3152145246Sbrooks } else { /* addr/mask opt */ 3153145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3154145246Sbrooks } 3155145246Sbrooks return cmd; 3156145246Sbrooks} 3157145246Sbrooks 3158145246Sbrooksstatic ipfw_insn * 3159145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3160145246Sbrooks{ 3161145246Sbrooks 3162145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3163145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3164145246Sbrooks ; 3165145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3166145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3167145246Sbrooks } else if (F_LEN(cmd) == 3168145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3169145246Sbrooks /* single IP, no mask*/ 3170145246Sbrooks cmd->opcode = O_IP6_DST; 3171145246Sbrooks } else { /* addr/mask opt */ 3172145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3173145246Sbrooks } 3174145246Sbrooks return cmd; 3175145246Sbrooks} 3176145246Sbrooks 3177145246Sbrooks 3178145246Sbrooks/* 317998943Sluigi * helper function to process a set of flags and set bits in the 318098943Sluigi * appropriate masks. 318198943Sluigi */ 318298943Sluigistatic void 318398943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 318498943Sluigi struct _s_x *flags, char *p) 318598943Sluigi{ 3186117328Sluigi uint8_t set=0, clear=0; 318798943Sluigi 318898943Sluigi while (p && *p) { 318998943Sluigi char *q; /* points to the separator */ 319098943Sluigi int val; 3191117328Sluigi uint8_t *which; /* mask we are working on */ 319298943Sluigi 319398943Sluigi if (*p == '!') { 319498943Sluigi p++; 319598943Sluigi which = &clear; 319698943Sluigi } else 319798943Sluigi which = &set; 319898943Sluigi q = strchr(p, ','); 319998943Sluigi if (q) 320098943Sluigi *q++ = '\0'; 320198943Sluigi val = match_token(flags, p); 320298943Sluigi if (val <= 0) 320398943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3204117328Sluigi *which |= (uint8_t)val; 320598943Sluigi p = q; 320698943Sluigi } 320798943Sluigi cmd->opcode = opcode; 320898943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 320998943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 321098943Sluigi} 321198943Sluigi 321298943Sluigi 321398943Sluigistatic void 321498943Sluigidelete(int ac, char *av[]) 321598943Sluigi{ 3216117328Sluigi uint32_t rulenum; 3217117469Sluigi struct dn_pipe p; 321898943Sluigi int i; 321998943Sluigi int exitval = EX_OK; 3220101628Sluigi int do_set = 0; 322198943Sluigi 3222117469Sluigi memset(&p, 0, sizeof p); 322398943Sluigi 322498943Sluigi av++; ac--; 3225130013Scsjp NEED1("missing rule specification"); 3226140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3227170923Smaxim /* Do not allow using the following syntax: 3228170923Smaxim * ipfw set N delete set M 3229170923Smaxim */ 3230170923Smaxim if (use_set) 3231170923Smaxim errx(EX_DATAERR, "invalid syntax"); 3232101978Sluigi do_set = 1; /* delete set */ 3233101628Sluigi ac--; av++; 3234101978Sluigi } 323598943Sluigi 323698943Sluigi /* Rule number */ 323798943Sluigi while (ac && isdigit(**av)) { 323898943Sluigi i = atoi(*av); av++; ac--; 3239165648Spiso if (do_nat) { 3240165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3241165648Spiso if (exitval) { 3242165648Spiso exitval = EX_UNAVAILABLE; 3243165648Spiso warn("rule %u not available", i); 3244165648Spiso } 3245165648Spiso } else if (do_pipe) { 324698943Sluigi if (do_pipe == 1) 3247117469Sluigi p.pipe_nr = i; 324898943Sluigi else 3249117469Sluigi p.fs.fs_nr = i; 3250117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 325198943Sluigi if (i) { 325298943Sluigi exitval = 1; 325398943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3254117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 325598943Sluigi } 325698943Sluigi } else { 3257170923Smaxim if (use_set) 3258170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 3259170923Smaxim ((use_set - 1) << 16); 3260170923Smaxim else 3261101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3262117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 326398943Sluigi if (i) { 326498943Sluigi exitval = EX_UNAVAILABLE; 326598943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 326698943Sluigi rulenum); 326798943Sluigi } 326898943Sluigi } 326998943Sluigi } 327098943Sluigi if (exitval != EX_OK) 327198943Sluigi exit(exitval); 327298943Sluigi} 327398943Sluigi 327498943Sluigi 327598943Sluigi/* 327698943Sluigi * fill the interface structure. We do not check the name as we can 327798943Sluigi * create interfaces dynamically, so checking them at insert time 327898943Sluigi * makes relatively little sense. 3279121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3280121816Sbrooks * patterns which match interfaces. 328198943Sluigi */ 328298943Sluigistatic void 328398943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 328498943Sluigi{ 328598943Sluigi cmd->name[0] = '\0'; 328698943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 328798943Sluigi 328898943Sluigi /* Parse the interface or address */ 3289140271Sbrooks if (strcmp(arg, "any") == 0) 329098943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 329198943Sluigi else if (!isdigit(*arg)) { 3292121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3293121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 329498943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 329598943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 329698943Sluigi} 329798943Sluigi 3298165648Spiso/* 3299165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3300165648Spiso * 3301165648Spiso * n->ip ip address of interface "ifn" 3302165648Spiso * n->if_name copy of interface name "ifn" 3303165648Spiso */ 330498943Sluigistatic void 3305165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3306165648Spiso{ 3307165648Spiso size_t needed; 3308165648Spiso int mib[6]; 3309165648Spiso char *buf, *lim, *next; 3310165648Spiso struct if_msghdr *ifm; 3311165648Spiso struct ifa_msghdr *ifam; 3312165648Spiso struct sockaddr_dl *sdl; 3313165648Spiso struct sockaddr_in *sin; 3314165648Spiso int ifIndex, ifMTU; 3315165648Spiso 3316165648Spiso mib[0] = CTL_NET; 3317165648Spiso mib[1] = PF_ROUTE; 3318165648Spiso mib[2] = 0; 3319165648Spiso mib[3] = AF_INET; 3320165648Spiso mib[4] = NET_RT_IFLIST; 3321165648Spiso mib[5] = 0; 3322165648Spiso/* 3323165648Spiso * Get interface data. 3324165648Spiso */ 3325165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3326165648Spiso err(1, "iflist-sysctl-estimate"); 3327165648Spiso if ((buf = malloc(needed)) == NULL) 3328165648Spiso errx(1, "malloc failed"); 3329165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3330165648Spiso err(1, "iflist-sysctl-get"); 3331165648Spiso lim = buf + needed; 3332165648Spiso/* 3333165648Spiso * Loop through interfaces until one with 3334165648Spiso * given name is found. This is done to 3335165648Spiso * find correct interface index for routing 3336165648Spiso * message processing. 3337165648Spiso */ 3338165648Spiso ifIndex = 0; 3339165648Spiso next = buf; 3340165648Spiso while (next < lim) { 3341165648Spiso ifm = (struct if_msghdr *)next; 3342165648Spiso next += ifm->ifm_msglen; 3343165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3344165648Spiso if (verbose) 3345165648Spiso warnx("routing message version %d " 3346165648Spiso "not understood", ifm->ifm_version); 3347165648Spiso continue; 3348165648Spiso } 3349165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3350165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3351165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3352165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3353165648Spiso ifIndex = ifm->ifm_index; 3354165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3355165648Spiso break; 3356165648Spiso } 3357165648Spiso } 3358165648Spiso } 3359165648Spiso if (!ifIndex) 3360165648Spiso errx(1, "unknown interface name %s", ifn); 3361165648Spiso/* 3362165648Spiso * Get interface address. 3363165648Spiso */ 3364165648Spiso sin = NULL; 3365165648Spiso while (next < lim) { 3366165648Spiso ifam = (struct ifa_msghdr *)next; 3367165648Spiso next += ifam->ifam_msglen; 3368165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3369165648Spiso if (verbose) 3370165648Spiso warnx("routing message version %d " 3371165648Spiso "not understood", ifam->ifam_version); 3372165648Spiso continue; 3373165648Spiso } 3374165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3375165648Spiso break; 3376165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3377165648Spiso int i; 3378165648Spiso char *cp = (char *)(ifam + 1); 3379165648Spiso 3380165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3381165648Spiso if (ifam->ifam_addrs & i) 3382165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3383165648Spiso } 3384165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3385165648Spiso sin = (struct sockaddr_in *)cp; 3386165648Spiso break; 3387165648Spiso } 3388165648Spiso } 3389165648Spiso } 3390165648Spiso if (sin == NULL) 3391165648Spiso errx(1, "%s: cannot get interface address", ifn); 3392165648Spiso 3393165648Spiso n->ip = sin->sin_addr; 3394165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3395165648Spiso 3396165648Spiso free(buf); 3397165648Spiso} 3398165648Spiso 3399165648Spiso/* 3400165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3401165648Spiso * it would be better to move them outside natd.c, in a file 3402165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3403165648Spiso * with it. 3404165648Spiso */ 3405165648Spiso 3406165648Spiso/* 3407165648Spiso * Definition of a port range, and macros to deal with values. 3408165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3409165648Spiso * LO 16-bits == number of ports in range 3410165648Spiso * NOTES: - Port values are not stored in network byte order. 3411165648Spiso */ 3412165648Spiso 3413165648Spiso#define port_range u_long 3414165648Spiso 3415165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3416165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3417165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3418165648Spiso 3419165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3420165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3421165648Spiso 3422165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3423165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3424165648Spiso 3425165648Spisostatic void 3426165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3427165648Spiso{ 3428165648Spiso struct hostent* hp; 3429165648Spiso 3430165648Spiso if (inet_aton (str, addr)) 3431165648Spiso return; 3432165648Spiso 3433165648Spiso hp = gethostbyname (str); 3434165648Spiso if (!hp) 3435165648Spiso errx (1, "unknown host %s", str); 3436165648Spiso 3437165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3438165648Spiso} 3439165648Spiso 3440165648Spisostatic int 3441165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3442165648Spiso{ 3443165648Spiso char* sep; 3444165648Spiso struct servent* sp; 3445165648Spiso char* end; 3446165648Spiso u_short loPort; 3447165648Spiso u_short hiPort; 3448165648Spiso 3449165648Spiso /* First see if this is a service, return corresponding port if so. */ 3450165648Spiso sp = getservbyname (str,proto); 3451165648Spiso if (sp) { 3452165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3453165648Spiso SETNUMPORTS(*portRange, 1); 3454165648Spiso return 0; 3455165648Spiso } 3456165648Spiso 3457165648Spiso /* Not a service, see if it's a single port or port range. */ 3458165648Spiso sep = strchr (str, '-'); 3459165648Spiso if (sep == NULL) { 3460165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3461165648Spiso if (end != str) { 3462165648Spiso /* Single port. */ 3463165648Spiso SETNUMPORTS(*portRange, 1); 3464165648Spiso return 0; 3465165648Spiso } 3466165648Spiso 3467165648Spiso /* Error in port range field. */ 3468165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3469165648Spiso } 3470165648Spiso 3471165648Spiso /* Port range, get the values and sanity check. */ 3472165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3473165648Spiso SETLOPORT(*portRange, loPort); 3474165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3475165648Spiso if (loPort <= hiPort) 3476165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3477165648Spiso 3478165648Spiso if (GETNUMPORTS(*portRange) == 0) 3479165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3480165648Spiso 3481165648Spiso return 0; 3482165648Spiso} 3483165648Spiso 3484165648Spisostatic int 3485165648SpisoStrToProto (const char* str) 3486165648Spiso{ 3487165648Spiso if (!strcmp (str, "tcp")) 3488165648Spiso return IPPROTO_TCP; 3489165648Spiso 3490165648Spiso if (!strcmp (str, "udp")) 3491165648Spiso return IPPROTO_UDP; 3492165648Spiso 3493165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3494165648Spiso} 3495165648Spiso 3496165648Spisostatic int 3497165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3498165648Spiso port_range *portRange) 3499165648Spiso{ 3500165648Spiso char* ptr; 3501165648Spiso 3502165648Spiso ptr = strchr (str, ':'); 3503165648Spiso if (!ptr) 3504165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3505165648Spiso 3506165648Spiso *ptr = '\0'; 3507165648Spiso ++ptr; 3508165648Spiso 3509165648Spiso StrToAddr (str, addr); 3510165648Spiso return StrToPortRange (ptr, proto, portRange); 3511165648Spiso} 3512165648Spiso 3513165648Spiso/* End of stuff taken from natd.c. */ 3514165648Spiso 3515165648Spiso#define INC_ARGCV() do { \ 3516165648Spiso (*_av)++; \ 3517165648Spiso (*_ac)--; \ 3518165648Spiso av = *_av; \ 3519165648Spiso ac = *_ac; \ 3520165648Spiso} while(0) 3521165648Spiso 3522165648Spiso/* 3523165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3524165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3525165648Spiso * and SetupProtoRedirect() from natd.c. 3526165648Spiso * 3527165648Spiso * Every setup_* function fills at least one redirect entry 3528165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3529165648Spiso * in buf. 3530165648Spiso * 3531165648Spiso * The format of data in buf is: 3532165648Spiso * 3533165648Spiso * 3534165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3535165648Spiso * 3536165648Spiso * ------------------------------------- ------------ 3537165648Spiso * | | .....X ... | | | | ..... 3538165648Spiso * ------------------------------------- ...... ------------ 3539165648Spiso * ^ 3540165648Spiso * spool_cnt n=0 ...... n=(X-1) 3541165648Spiso * 3542165648Spiso * len points to the amount of available space in buf 3543165648Spiso * space counts the memory consumed by every function 3544165648Spiso * 3545165648Spiso * XXX - Every function get all the argv params so it 3546165648Spiso * has to check, in optional parameters, that the next 3547165648Spiso * args is a valid option for the redir entry and not 3548165648Spiso * another token. Only redir_port and redir_proto are 3549165648Spiso * affected by this. 3550165648Spiso */ 3551165648Spiso 3552165648Spisostatic int 3553165648Spisosetup_redir_addr(char *spool_buf, int len, 3554165648Spiso int *_ac, char ***_av) 3555165648Spiso{ 3556165648Spiso char **av, *sep; /* Token separator. */ 3557165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3558165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3559165648Spiso int ac, i, space, lsnat; 3560165648Spiso struct cfg_redir *r; 3561165648Spiso struct cfg_spool *tmp; 3562165648Spiso 3563165648Spiso av = *_av; 3564165648Spiso ac = *_ac; 3565165648Spiso space = 0; 3566165648Spiso lsnat = 0; 3567165648Spiso if (len >= SOF_REDIR) { 3568165648Spiso r = (struct cfg_redir *)spool_buf; 3569165648Spiso /* Skip cfg_redir at beginning of buf. */ 3570165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3571165648Spiso space = SOF_REDIR; 3572165648Spiso len -= SOF_REDIR; 3573165648Spiso } else 3574165648Spiso goto nospace; 3575165648Spiso r->mode = REDIR_ADDR; 3576165648Spiso /* Extract local address. */ 3577165648Spiso if (ac == 0) 3578165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3579165648Spiso sep = strchr(*av, ','); 3580165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3581165648Spiso r->laddr.s_addr = INADDR_NONE; 3582165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3583165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3584165648Spiso lsnat = 1; 3585165648Spiso } else 3586165648Spiso StrToAddr(*av, &r->laddr); 3587165648Spiso INC_ARGCV(); 3588165648Spiso 3589165648Spiso /* Extract public address. */ 3590165648Spiso if (ac == 0) 3591165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3592165648Spiso StrToAddr(*av, &r->paddr); 3593165648Spiso INC_ARGCV(); 3594165648Spiso 3595165648Spiso /* Setup LSNAT server pool. */ 3596165648Spiso if (sep) { 3597165648Spiso sep = strtok(tmp_spool_buf, ","); 3598165648Spiso while (sep != NULL) { 3599165648Spiso tmp = (struct cfg_spool *)spool_buf; 3600165648Spiso if (len < SOF_SPOOL) 3601165648Spiso goto nospace; 3602165648Spiso len -= SOF_SPOOL; 3603165648Spiso space += SOF_SPOOL; 3604165648Spiso StrToAddr(sep, &tmp->addr); 3605165648Spiso tmp->port = ~0; 3606165648Spiso r->spool_cnt++; 3607165648Spiso /* Point to the next possible cfg_spool. */ 3608165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3609165648Spiso sep = strtok(NULL, ","); 3610165648Spiso } 3611165648Spiso } 3612165648Spiso return(space); 3613165648Spisonospace: 3614165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3615165648Spiso} 3616165648Spiso 3617165648Spisostatic int 3618165648Spisosetup_redir_port(char *spool_buf, int len, 3619165648Spiso int *_ac, char ***_av) 3620165648Spiso{ 3621165648Spiso char **av, *sep, *protoName; 3622165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3623165648Spiso int ac, space, lsnat; 3624165648Spiso struct cfg_redir *r; 3625165648Spiso struct cfg_spool *tmp; 3626165648Spiso u_short numLocalPorts; 3627165648Spiso port_range portRange; 3628165648Spiso 3629165648Spiso av = *_av; 3630165648Spiso ac = *_ac; 3631165648Spiso space = 0; 3632165648Spiso lsnat = 0; 3633165648Spiso numLocalPorts = 0; 3634165648Spiso 3635165648Spiso if (len >= SOF_REDIR) { 3636165648Spiso r = (struct cfg_redir *)spool_buf; 3637165648Spiso /* Skip cfg_redir at beginning of buf. */ 3638165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3639165648Spiso space = SOF_REDIR; 3640165648Spiso len -= SOF_REDIR; 3641165648Spiso } else 3642165648Spiso goto nospace; 3643165648Spiso r->mode = REDIR_PORT; 3644165648Spiso /* 3645165648Spiso * Extract protocol. 3646165648Spiso */ 3647165648Spiso if (ac == 0) 3648165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3649165648Spiso r->proto = StrToProto(*av); 3650165648Spiso protoName = *av; 3651165648Spiso INC_ARGCV(); 3652165648Spiso 3653165648Spiso /* 3654165648Spiso * Extract local address. 3655165648Spiso */ 3656165648Spiso if (ac == 0) 3657165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3658165648Spiso 3659165648Spiso sep = strchr(*av, ','); 3660165648Spiso /* LSNAT redirection syntax. */ 3661165648Spiso if (sep) { 3662165648Spiso r->laddr.s_addr = INADDR_NONE; 3663165648Spiso r->lport = ~0; 3664165648Spiso numLocalPorts = 1; 3665165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3666165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3667165648Spiso lsnat = 1; 3668165648Spiso } else { 3669165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3670165648Spiso &portRange) != 0) 3671165648Spiso errx(EX_DATAERR, "redirect_port:" 3672165648Spiso "invalid local port range"); 3673165648Spiso 3674165648Spiso r->lport = GETLOPORT(portRange); 3675165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3676165648Spiso } 3677165648Spiso INC_ARGCV(); 3678165648Spiso 3679165648Spiso /* 3680165648Spiso * Extract public port and optionally address. 3681165648Spiso */ 3682165648Spiso if (ac == 0) 3683165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3684165648Spiso 3685165648Spiso sep = strchr (*av, ':'); 3686165648Spiso if (sep) { 3687165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3688165648Spiso &portRange) != 0) 3689165648Spiso errx(EX_DATAERR, "redirect_port:" 3690165648Spiso "invalid public port range"); 3691165648Spiso } else { 3692165648Spiso r->paddr.s_addr = INADDR_ANY; 3693165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3694165648Spiso errx(EX_DATAERR, "redirect_port:" 3695165648Spiso "invalid public port range"); 3696165648Spiso } 3697165648Spiso 3698165648Spiso r->pport = GETLOPORT(portRange); 3699165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3700165648Spiso INC_ARGCV(); 3701165648Spiso 3702165648Spiso /* 3703165648Spiso * Extract remote address and optionally port. 3704165648Spiso */ 3705165648Spiso /* 3706165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3707165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3708165648Spiso */ 3709165648Spiso if (ac != 0 && !isalpha(**av)) { 3710165648Spiso sep = strchr (*av, ':'); 3711165648Spiso if (sep) { 3712165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3713165648Spiso &portRange) != 0) 3714165648Spiso errx(EX_DATAERR, "redirect_port:" 3715165648Spiso "invalid remote port range"); 3716165648Spiso } else { 3717165648Spiso SETLOPORT(portRange, 0); 3718165648Spiso SETNUMPORTS(portRange, 1); 3719165648Spiso StrToAddr (*av, &r->raddr); 3720165648Spiso } 3721165648Spiso INC_ARGCV(); 3722165648Spiso } else { 3723165648Spiso SETLOPORT(portRange, 0); 3724165648Spiso SETNUMPORTS(portRange, 1); 3725165648Spiso r->raddr.s_addr = INADDR_ANY; 3726165648Spiso } 3727165648Spiso r->rport = GETLOPORT(portRange); 3728165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3729165648Spiso 3730165648Spiso /* 3731165648Spiso * Make sure port ranges match up, then add the redirect ports. 3732165648Spiso */ 3733165648Spiso if (numLocalPorts != r->pport_cnt) 3734165648Spiso errx(EX_DATAERR, "redirect_port:" 3735165648Spiso "port ranges must be equal in size"); 3736165648Spiso 3737165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3738165648Spiso if (r->rport_cnt != numLocalPorts && 3739165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3740165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3741165648Spiso "be 0 or equal to local port range in size"); 3742165648Spiso 3743165648Spiso /* 3744165648Spiso * Setup LSNAT server pool. 3745165648Spiso */ 3746165648Spiso if (lsnat) { 3747165648Spiso sep = strtok(tmp_spool_buf, ","); 3748165648Spiso while (sep != NULL) { 3749165648Spiso tmp = (struct cfg_spool *)spool_buf; 3750165648Spiso if (len < SOF_SPOOL) 3751165648Spiso goto nospace; 3752165648Spiso len -= SOF_SPOOL; 3753165648Spiso space += SOF_SPOOL; 3754165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3755165648Spiso &portRange) != 0) 3756165648Spiso errx(EX_DATAERR, "redirect_port:" 3757165648Spiso "invalid local port range"); 3758165648Spiso if (GETNUMPORTS(portRange) != 1) 3759165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3760165648Spiso "must be single in this context"); 3761165648Spiso tmp->port = GETLOPORT(portRange); 3762165648Spiso r->spool_cnt++; 3763165648Spiso /* Point to the next possible cfg_spool. */ 3764165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3765165648Spiso sep = strtok(NULL, ","); 3766165648Spiso } 3767165648Spiso } 3768165648Spiso return (space); 3769165648Spisonospace: 3770165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3771165648Spiso} 3772165648Spiso 3773165648Spisostatic int 3774165648Spisosetup_redir_proto(char *spool_buf, int len, 3775165648Spiso int *_ac, char ***_av) 3776165648Spiso{ 3777165648Spiso char **av; 3778165648Spiso int ac, i, space; 3779165648Spiso struct protoent *protoent; 3780165648Spiso struct cfg_redir *r; 3781165648Spiso 3782165648Spiso av = *_av; 3783165648Spiso ac = *_ac; 3784165648Spiso if (len >= SOF_REDIR) { 3785165648Spiso r = (struct cfg_redir *)spool_buf; 3786165648Spiso /* Skip cfg_redir at beginning of buf. */ 3787165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3788165648Spiso space = SOF_REDIR; 3789165648Spiso len -= SOF_REDIR; 3790165648Spiso } else 3791165648Spiso goto nospace; 3792165648Spiso r->mode = REDIR_PROTO; 3793165648Spiso /* 3794165648Spiso * Extract protocol. 3795165648Spiso */ 3796165648Spiso if (ac == 0) 3797165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3798165648Spiso 3799165648Spiso protoent = getprotobyname(*av); 3800165648Spiso if (protoent == NULL) 3801165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3802165648Spiso else 3803165648Spiso r->proto = protoent->p_proto; 3804165648Spiso 3805165648Spiso INC_ARGCV(); 3806165648Spiso 3807165648Spiso /* 3808165648Spiso * Extract local address. 3809165648Spiso */ 3810165648Spiso if (ac == 0) 3811165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3812165648Spiso else 3813165648Spiso StrToAddr(*av, &r->laddr); 3814165648Spiso 3815165648Spiso INC_ARGCV(); 3816165648Spiso 3817165648Spiso /* 3818165648Spiso * Extract optional public address. 3819165648Spiso */ 3820165648Spiso if (ac == 0) { 3821165648Spiso r->paddr.s_addr = INADDR_ANY; 3822165648Spiso r->raddr.s_addr = INADDR_ANY; 3823165648Spiso } else { 3824165648Spiso /* see above in setup_redir_port() */ 3825165648Spiso if (!isalpha(**av)) { 3826165648Spiso StrToAddr(*av, &r->paddr); 3827165648Spiso INC_ARGCV(); 3828165648Spiso 3829165648Spiso /* 3830165648Spiso * Extract optional remote address. 3831165648Spiso */ 3832165648Spiso /* see above in setup_redir_port() */ 3833165648Spiso if (ac!=0 && !isalpha(**av)) { 3834165648Spiso StrToAddr(*av, &r->raddr); 3835165648Spiso INC_ARGCV(); 3836165648Spiso } 3837165648Spiso } 3838165648Spiso } 3839165648Spiso return (space); 3840165648Spisonospace: 3841165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3842165648Spiso} 3843165648Spiso 3844165648Spisostatic void 3845165648Spisoshow_nat(int ac, char **av); 3846165648Spiso 3847165648Spisostatic void 3848165648Spisoprint_nat_config(char *buf) { 3849165648Spiso struct cfg_nat *n; 3850165648Spiso int i, cnt, flag, off; 3851165648Spiso struct cfg_redir *t; 3852165648Spiso struct cfg_spool *s; 3853165648Spiso struct protoent *p; 3854165648Spiso 3855165648Spiso n = (struct cfg_nat *)buf; 3856165648Spiso flag = 1; 3857165648Spiso off = sizeof(*n); 3858165648Spiso printf("ipfw nat %u config", n->id); 3859165648Spiso if (strlen(n->if_name) != 0) 3860165648Spiso printf(" if %s", n->if_name); 3861165648Spiso else if (n->ip.s_addr != 0) 3862165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3863165648Spiso while (n->mode != 0) { 3864165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3865165648Spiso printf(" log"); 3866165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3867165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3868165648Spiso printf(" deny_in"); 3869165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3870165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3871165648Spiso printf(" same_ports"); 3872165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3873165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3874165648Spiso printf(" unreg_only"); 3875165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3876165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3877165648Spiso printf(" reset"); 3878165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3879165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3880165648Spiso printf(" reverse"); 3881165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3882165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3883165648Spiso printf(" proxy_only"); 3884165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3885165648Spiso } 3886165648Spiso } 3887165648Spiso /* Print all the redirect's data configuration. */ 3888165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3889165648Spiso t = (struct cfg_redir *)&buf[off]; 3890165648Spiso off += SOF_REDIR; 3891165648Spiso switch (t->mode) { 3892165648Spiso case REDIR_ADDR: 3893165648Spiso printf(" redirect_addr"); 3894165648Spiso if (t->spool_cnt == 0) 3895165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3896165648Spiso else 3897165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3898165648Spiso s = (struct cfg_spool *)&buf[off]; 3899165648Spiso if (i) 3900165648Spiso printf(","); 3901165648Spiso else 3902165648Spiso printf(" "); 3903165648Spiso printf("%s", inet_ntoa(s->addr)); 3904165648Spiso off += SOF_SPOOL; 3905165648Spiso } 3906165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3907165648Spiso break; 3908165648Spiso case REDIR_PORT: 3909165648Spiso p = getprotobynumber(t->proto); 3910165648Spiso printf(" redirect_port %s ", p->p_name); 3911165648Spiso if (!t->spool_cnt) { 3912165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3913165648Spiso if (t->pport_cnt > 1) 3914165648Spiso printf("-%u", t->lport + 3915165648Spiso t->pport_cnt - 1); 3916165648Spiso } else 3917165648Spiso for (i=0; i < t->spool_cnt; i++) { 3918165648Spiso s = (struct cfg_spool *)&buf[off]; 3919165648Spiso if (i) 3920165648Spiso printf(","); 3921165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3922165648Spiso s->port); 3923165648Spiso off += SOF_SPOOL; 3924165648Spiso } 3925165648Spiso 3926165648Spiso printf(" "); 3927165648Spiso if (t->paddr.s_addr) 3928165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3929165648Spiso printf("%u", t->pport); 3930165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3931165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3932165648Spiso 3933165648Spiso if (t->raddr.s_addr) { 3934165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3935165648Spiso if (t->rport) { 3936165648Spiso printf(":%u", t->rport); 3937165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3938165648Spiso printf("-%u", t->rport + 3939165648Spiso t->rport_cnt - 1); 3940165648Spiso } 3941165648Spiso } 3942165648Spiso break; 3943165648Spiso case REDIR_PROTO: 3944165648Spiso p = getprotobynumber(t->proto); 3945165648Spiso printf(" redirect_proto %s %s", p->p_name, 3946165648Spiso inet_ntoa(t->laddr)); 3947165648Spiso if (t->paddr.s_addr != 0) { 3948165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3949165648Spiso if (t->raddr.s_addr) 3950165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3951165648Spiso } 3952165648Spiso break; 3953165648Spiso default: 3954165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3955165648Spiso break; 3956165648Spiso } 3957165648Spiso } 3958165648Spiso printf("\n"); 3959165648Spiso} 3960165648Spiso 3961165648Spisostatic void 3962165648Spisoconfig_nat(int ac, char **av) 3963165648Spiso{ 3964165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3965165648Spiso struct in_addr ip; 3966165648Spiso int i, len, off, tok; 3967165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3968165648Spiso 3969165648Spiso len = NAT_BUF_LEN; 3970165648Spiso /* Offset in buf: save space for n at the beginning. */ 3971165648Spiso off = sizeof(*n); 3972165648Spiso memset(buf, 0, sizeof(buf)); 3973165648Spiso n = (struct cfg_nat *)buf; 3974165648Spiso 3975165648Spiso av++; ac--; 3976165648Spiso /* Nat id. */ 3977165648Spiso if (ac && isdigit(**av)) { 3978165648Spiso id = *av; 3979165648Spiso i = atoi(*av); 3980165648Spiso ac--; av++; 3981165648Spiso n->id = i; 3982165648Spiso } else 3983165648Spiso errx(EX_DATAERR, "missing nat id"); 3984165648Spiso if (ac == 0) 3985165648Spiso errx(EX_DATAERR, "missing option"); 3986165648Spiso 3987165648Spiso while (ac > 0) { 3988165648Spiso tok = match_token(nat_params, *av); 3989165648Spiso ac--; av++; 3990165648Spiso switch (tok) { 3991165648Spiso case TOK_IP: 3992165648Spiso if (ac == 0) 3993165648Spiso errx(EX_DATAERR, "missing option"); 3994165648Spiso if (!inet_aton(av[0], &(n->ip))) 3995165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 3996165648Spiso av[0]); 3997165648Spiso ac--; av++; 3998165648Spiso break; 3999165648Spiso case TOK_IF: 4000175511Smaxim if (ac == 0) 4001175511Smaxim errx(EX_DATAERR, "missing option"); 4002165648Spiso set_addr_dynamic(av[0], n); 4003165648Spiso ac--; av++; 4004165648Spiso break; 4005165648Spiso case TOK_ALOG: 4006165648Spiso n->mode |= PKT_ALIAS_LOG; 4007165648Spiso break; 4008165648Spiso case TOK_DENY_INC: 4009165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 4010165648Spiso break; 4011165648Spiso case TOK_SAME_PORTS: 4012165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 4013165648Spiso break; 4014165648Spiso case TOK_UNREG_ONLY: 4015165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 4016165648Spiso break; 4017165648Spiso case TOK_RESET_ADDR: 4018165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 4019165648Spiso break; 4020165648Spiso case TOK_ALIAS_REV: 4021165648Spiso n->mode |= PKT_ALIAS_REVERSE; 4022165648Spiso break; 4023165648Spiso case TOK_PROXY_ONLY: 4024165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 4025165648Spiso break; 4026165648Spiso /* 4027165648Spiso * All the setup_redir_* functions work directly in the final 4028165648Spiso * buffer, see above for details. 4029165648Spiso */ 4030165648Spiso case TOK_REDIR_ADDR: 4031165648Spiso case TOK_REDIR_PORT: 4032165648Spiso case TOK_REDIR_PROTO: 4033165648Spiso switch (tok) { 4034165648Spiso case TOK_REDIR_ADDR: 4035165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 4036165648Spiso break; 4037165648Spiso case TOK_REDIR_PORT: 4038165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 4039165648Spiso break; 4040165648Spiso case TOK_REDIR_PROTO: 4041165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 4042165648Spiso break; 4043165648Spiso } 4044165648Spiso n->redir_cnt++; 4045165648Spiso off += i; 4046165648Spiso len -= i; 4047165648Spiso break; 4048165648Spiso default: 4049165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 4050165648Spiso } 4051165648Spiso } 4052165648Spiso 4053165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 4054165648Spiso if (i) 4055165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 4056165648Spiso 4057165648Spiso /* After every modification, we show the resultant rule. */ 4058165648Spiso int _ac = 3; 4059165648Spiso char *_av[] = {"show", "config", id}; 4060165648Spiso show_nat(_ac, _av); 4061165648Spiso} 4062165648Spiso 4063165648Spisostatic void 406498943Sluigiconfig_pipe(int ac, char **av) 406598943Sluigi{ 4066117469Sluigi struct dn_pipe p; 406798943Sluigi int i; 406898943Sluigi char *end; 406998943Sluigi void *par = NULL; 407098943Sluigi 4071117469Sluigi memset(&p, 0, sizeof p); 407298943Sluigi 407398943Sluigi av++; ac--; 407498943Sluigi /* Pipe number */ 407598943Sluigi if (ac && isdigit(**av)) { 407698943Sluigi i = atoi(*av); av++; ac--; 407798943Sluigi if (do_pipe == 1) 4078117469Sluigi p.pipe_nr = i; 407998943Sluigi else 4080117469Sluigi p.fs.fs_nr = i; 408198943Sluigi } 408299475Sluigi while (ac > 0) { 408398943Sluigi double d; 408498943Sluigi int tok = match_token(dummynet_params, *av); 408598943Sluigi ac--; av++; 408698943Sluigi 408798943Sluigi switch(tok) { 4088101978Sluigi case TOK_NOERROR: 4089117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4090101978Sluigi break; 4091101978Sluigi 409298943Sluigi case TOK_PLR: 409398943Sluigi NEED1("plr needs argument 0..1\n"); 409498943Sluigi d = strtod(av[0], NULL); 409598943Sluigi if (d > 1) 409698943Sluigi d = 1; 409798943Sluigi else if (d < 0) 409898943Sluigi d = 0; 4099117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 410098943Sluigi ac--; av++; 410198943Sluigi break; 410298943Sluigi 410398943Sluigi case TOK_QUEUE: 410498943Sluigi NEED1("queue needs queue size\n"); 410598943Sluigi end = NULL; 4106117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 410798943Sluigi if (*end == 'K' || *end == 'k') { 4108117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4109117469Sluigi p.fs.qsize *= 1024; 4110140271Sbrooks } else if (*end == 'B' || 4111140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4112117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 411398943Sluigi } 411498943Sluigi ac--; av++; 411598943Sluigi break; 411698943Sluigi 411798943Sluigi case TOK_BUCKETS: 411898943Sluigi NEED1("buckets needs argument\n"); 4119117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 412098943Sluigi ac--; av++; 412198943Sluigi break; 412298943Sluigi 412398943Sluigi case TOK_MASK: 412498943Sluigi NEED1("mask needs mask specifier\n"); 412598943Sluigi /* 412698943Sluigi * per-flow queue, mask is dst_ip, dst_port, 412798943Sluigi * src_ip, src_port, proto measured in bits 412898943Sluigi */ 412998943Sluigi par = NULL; 413098943Sluigi 4131145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 413298943Sluigi end = NULL; 413398943Sluigi 413498943Sluigi while (ac >= 1) { 4135117328Sluigi uint32_t *p32 = NULL; 4136117328Sluigi uint16_t *p16 = NULL; 4137145246Sbrooks uint32_t *p20 = NULL; 4138145246Sbrooks struct in6_addr *pa6 = NULL; 4139145246Sbrooks uint32_t a; 414098943Sluigi 414198943Sluigi tok = match_token(dummynet_params, *av); 414298943Sluigi ac--; av++; 414398943Sluigi switch(tok) { 414498943Sluigi case TOK_ALL: 414598943Sluigi /* 414698943Sluigi * special case, all bits significant 414798943Sluigi */ 4148117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4149117469Sluigi p.fs.flow_mask.src_ip = ~0; 4150117469Sluigi p.fs.flow_mask.dst_port = ~0; 4151117469Sluigi p.fs.flow_mask.src_port = ~0; 4152117469Sluigi p.fs.flow_mask.proto = ~0; 4153145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4154145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4155145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4156117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 415798943Sluigi goto end_mask; 415898943Sluigi 415998943Sluigi case TOK_DSTIP: 4160117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 416198943Sluigi break; 416298943Sluigi 416398943Sluigi case TOK_SRCIP: 4164117469Sluigi p32 = &p.fs.flow_mask.src_ip; 416598943Sluigi break; 416698943Sluigi 4167145246Sbrooks case TOK_DSTIP6: 4168145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4169145246Sbrooks break; 4170145246Sbrooks 4171145246Sbrooks case TOK_SRCIP6: 4172145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4173145246Sbrooks break; 4174145246Sbrooks 4175145246Sbrooks case TOK_FLOWID: 4176145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4177145246Sbrooks break; 4178145246Sbrooks 417998943Sluigi case TOK_DSTPORT: 4180117469Sluigi p16 = &p.fs.flow_mask.dst_port; 418198943Sluigi break; 418298943Sluigi 418398943Sluigi case TOK_SRCPORT: 4184117469Sluigi p16 = &p.fs.flow_mask.src_port; 418598943Sluigi break; 418698943Sluigi 418798943Sluigi case TOK_PROTO: 418898943Sluigi break; 418998943Sluigi 419098943Sluigi default: 419198943Sluigi ac++; av--; /* backtrack */ 419298943Sluigi goto end_mask; 419398943Sluigi } 419498943Sluigi if (ac < 1) 419598943Sluigi errx(EX_USAGE, "mask: value missing"); 419698943Sluigi if (*av[0] == '/') { 419798943Sluigi a = strtoul(av[0]+1, &end, 0); 4198145246Sbrooks if (pa6 == NULL) 4199145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4200106505Smaxim } else 420199909Sluigi a = strtoul(av[0], &end, 0); 420298943Sluigi if (p32 != NULL) 420398943Sluigi *p32 = a; 420498943Sluigi else if (p16 != NULL) { 4205139821Sbrooks if (a > 0xFFFF) 420698943Sluigi errx(EX_DATAERR, 4207144687Sbrooks "port mask must be 16 bit"); 4208117328Sluigi *p16 = (uint16_t)a; 4209145246Sbrooks } else if (p20 != NULL) { 4210145246Sbrooks if (a > 0xfffff) 4211145246Sbrooks errx(EX_DATAERR, 4212145246Sbrooks "flow_id mask must be 20 bit"); 4213145246Sbrooks *p20 = (uint32_t)a; 4214145246Sbrooks } else if (pa6 != NULL) { 4215145246Sbrooks if (a < 0 || a > 128) 4216145246Sbrooks errx(EX_DATAERR, 4217145246Sbrooks "in6addr invalid mask len"); 4218145246Sbrooks else 4219145246Sbrooks n2mask(pa6, a); 422098943Sluigi } else { 4221139821Sbrooks if (a > 0xFF) 422298943Sluigi errx(EX_DATAERR, 4223144687Sbrooks "proto mask must be 8 bit"); 4224117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 422598943Sluigi } 422698943Sluigi if (a != 0) 4227117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 422898943Sluigi ac--; av++; 422998943Sluigi } /* end while, config masks */ 423098943Sluigiend_mask: 423198943Sluigi break; 423298943Sluigi 423398943Sluigi case TOK_RED: 423498943Sluigi case TOK_GRED: 423598943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4236117469Sluigi p.fs.flags_fs |= DN_IS_RED; 423798943Sluigi if (tok == TOK_GRED) 4238117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 423998943Sluigi /* 424098943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 424198943Sluigi */ 424298943Sluigi if ((end = strsep(&av[0], "/"))) { 424398943Sluigi double w_q = strtod(end, NULL); 424498943Sluigi if (w_q > 1 || w_q <= 0) 424598943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4246117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 424798943Sluigi } 424898943Sluigi if ((end = strsep(&av[0], "/"))) { 4249117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 425098943Sluigi if (*end == 'K' || *end == 'k') 4251117469Sluigi p.fs.min_th *= 1024; 425298943Sluigi } 425398943Sluigi if ((end = strsep(&av[0], "/"))) { 4254117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 425598943Sluigi if (*end == 'K' || *end == 'k') 4256117469Sluigi p.fs.max_th *= 1024; 425798943Sluigi } 425898943Sluigi if ((end = strsep(&av[0], "/"))) { 425998943Sluigi double max_p = strtod(end, NULL); 426098943Sluigi if (max_p > 1 || max_p <= 0) 426198943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4262117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 426398943Sluigi } 426498943Sluigi ac--; av++; 426598943Sluigi break; 426698943Sluigi 426798943Sluigi case TOK_DROPTAIL: 4268117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 426998943Sluigi break; 4270106505Smaxim 427198943Sluigi case TOK_BW: 427298943Sluigi NEED1("bw needs bandwidth or interface\n"); 427398943Sluigi if (do_pipe != 1) 427498943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 427598943Sluigi /* 427698943Sluigi * set clocking interface or bandwidth value 427798943Sluigi */ 427898943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4279117469Sluigi int l = sizeof(p.if_name)-1; 428098943Sluigi /* interface name */ 4281117469Sluigi strncpy(p.if_name, av[0], l); 4282117469Sluigi p.if_name[l] = '\0'; 4283117469Sluigi p.bandwidth = 0; 428498943Sluigi } else { 4285117469Sluigi p.if_name[0] = '\0'; 4286117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 428798943Sluigi if (*end == 'K' || *end == 'k') { 428898943Sluigi end++; 4289117469Sluigi p.bandwidth *= 1000; 429098943Sluigi } else if (*end == 'M') { 429198943Sluigi end++; 4292117469Sluigi p.bandwidth *= 1000000; 429398943Sluigi } 4294161550Sdwmalone if ((*end == 'B' && 4295161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4296140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4297117469Sluigi p.bandwidth *= 8; 4298117469Sluigi if (p.bandwidth < 0) 429998943Sluigi errx(EX_DATAERR, "bandwidth too large"); 430098943Sluigi } 430198943Sluigi ac--; av++; 430298943Sluigi break; 430398943Sluigi 430498943Sluigi case TOK_DELAY: 430598943Sluigi if (do_pipe != 1) 430698943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 430798943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4308117469Sluigi p.delay = strtoul(av[0], NULL, 0); 430998943Sluigi ac--; av++; 431098943Sluigi break; 431198943Sluigi 431298943Sluigi case TOK_WEIGHT: 431398943Sluigi if (do_pipe == 1) 431498943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 431598943Sluigi NEED1("weight needs argument 0..100\n"); 4316117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 431798943Sluigi ac--; av++; 431898943Sluigi break; 431998943Sluigi 432098943Sluigi case TOK_PIPE: 432198943Sluigi if (do_pipe == 1) 432298943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 432398943Sluigi NEED1("pipe needs pipe_number\n"); 4324117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 432598943Sluigi ac--; av++; 432698943Sluigi break; 432798943Sluigi 432898943Sluigi default: 4329124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 433098943Sluigi } 433198943Sluigi } 433298943Sluigi if (do_pipe == 1) { 4333117469Sluigi if (p.pipe_nr == 0) 433498943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4335117469Sluigi if (p.delay > 10000) 433698943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 433798943Sluigi } else { /* do_pipe == 2, queue */ 4338117469Sluigi if (p.fs.parent_nr == 0) 433998943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4340117469Sluigi if (p.fs.weight >100) 434198943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 434298943Sluigi } 4343117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4344117469Sluigi if (p.fs.qsize > 1024*1024) 434598943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 434698943Sluigi } else { 4347117469Sluigi if (p.fs.qsize > 100) 434898943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 434998943Sluigi } 4350117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 435198943Sluigi size_t len; 435298943Sluigi int lookup_depth, avg_pkt_size; 435398943Sluigi double s, idle, weight, w_q; 4354117469Sluigi struct clockinfo ck; 435598943Sluigi int t; 435698943Sluigi 4357117469Sluigi if (p.fs.min_th >= p.fs.max_th) 435898943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4359117469Sluigi p.fs.min_th, p.fs.max_th); 4360117469Sluigi if (p.fs.max_th == 0) 436198943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 436298943Sluigi 436398943Sluigi len = sizeof(int); 436498943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 436598943Sluigi &lookup_depth, &len, NULL, 0) == -1) 436698943Sluigi 436798943Sluigi errx(1, "sysctlbyname(\"%s\")", 436898943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 436998943Sluigi if (lookup_depth == 0) 437098943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 437198943Sluigi " must be greater than zero"); 437298943Sluigi 437398943Sluigi len = sizeof(int); 437498943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 437598943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 437698943Sluigi 437798943Sluigi errx(1, "sysctlbyname(\"%s\")", 437898943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 437998943Sluigi if (avg_pkt_size == 0) 438098943Sluigi errx(EX_DATAERR, 438198943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 438298943Sluigi " be greater than zero"); 438398943Sluigi 438498943Sluigi len = sizeof(struct clockinfo); 4385117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 438698943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 438798943Sluigi 438898943Sluigi /* 438998943Sluigi * Ticks needed for sending a medium-sized packet. 439098943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 439198943Sluigi * do not have bandwidth information, because that is stored 439298943Sluigi * in the parent pipe, and also we have multiple queues 439398943Sluigi * competing for it. So we set s=0, which is not very 439498943Sluigi * correct. But on the other hand, why do we want RED with 439598943Sluigi * WF2Q+ ? 439698943Sluigi */ 4397117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 439898943Sluigi s = 0; 439998943Sluigi else 4400174713Soleg s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth; 440198943Sluigi 440298943Sluigi /* 440398943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 440498943Sluigi * NOTA: (3/w_q) is approx the value x so that 440598943Sluigi * (1-w_q)^x < 10^-3. 440698943Sluigi */ 4407117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 440898943Sluigi idle = s * 3. / w_q; 4409117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4410117469Sluigi if (!p.fs.lookup_step) 4411117469Sluigi p.fs.lookup_step = 1; 441298943Sluigi weight = 1 - w_q; 4413174713Soleg for (t = p.fs.lookup_step; t > 1; --t) 4414174713Soleg weight *= 1 - w_q; 4415117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 441698943Sluigi } 4417117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 441898943Sluigi if (i) 441998943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 442098943Sluigi} 442198943Sluigi 442298943Sluigistatic void 4423169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 442498943Sluigi{ 442598943Sluigi int i, l; 4426169424Smaxim char *ap, *ptr, *optr; 4427169424Smaxim struct ether_addr *mac; 4428169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 442998943Sluigi 4430169424Smaxim if (strcmp(p, "any") == 0) { 4431169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4432169424Smaxim addr[i] = mask[i] = 0; 443398943Sluigi return; 4434169424Smaxim } 443598943Sluigi 4436169424Smaxim optr = ptr = strdup(p); 4437169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4438169424Smaxim l = strlen(ap); 4439169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4440169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4441169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4442169424Smaxim } else 4443169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4444169424Smaxim 4445169424Smaxim if (ptr != NULL) { /* we have mask? */ 4446169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4447169424Smaxim l = strtol(ptr, &ap, 10); 4448169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4449169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4450169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4451169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4452169424Smaxim } else { /* mask */ 4453169424Smaxim l = strlen(ptr); 4454169424Smaxim if (strspn(ptr, macset) != l || 4455169424Smaxim (mac = ether_aton(ptr)) == NULL) 4456169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4457169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 445898943Sluigi } 4459169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4460169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 446198943Sluigi mask[i] = 0xff; 446298943Sluigi } 4463169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 446498943Sluigi addr[i] &= mask[i]; 4465169424Smaxim 4466169424Smaxim free(optr); 446798943Sluigi} 446898943Sluigi 446998943Sluigi/* 447098943Sluigi * helper function, updates the pointer to cmd with the length 447198943Sluigi * of the current command, and also cleans up the first word of 447298943Sluigi * the new command in case it has been clobbered before. 447398943Sluigi */ 447498943Sluigistatic ipfw_insn * 447598943Sluiginext_cmd(ipfw_insn *cmd) 447698943Sluigi{ 447798943Sluigi cmd += F_LEN(cmd); 447898943Sluigi bzero(cmd, sizeof(*cmd)); 447998943Sluigi return cmd; 448098943Sluigi} 448198943Sluigi 448298943Sluigi/* 4483117469Sluigi * Takes arguments and copies them into a comment 4484117469Sluigi */ 4485117469Sluigistatic void 4486117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4487117469Sluigi{ 4488117469Sluigi int i, l; 4489117469Sluigi char *p = (char *)(cmd + 1); 4490117577Sluigi 4491117469Sluigi cmd->opcode = O_NOP; 4492117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4493117469Sluigi 4494117469Sluigi /* Compute length of comment string. */ 4495117469Sluigi for (i = 0, l = 0; i < ac; i++) 4496117469Sluigi l += strlen(av[i]) + 1; 4497117469Sluigi if (l == 0) 4498117469Sluigi return; 4499117469Sluigi if (l > 84) 4500117469Sluigi errx(EX_DATAERR, 4501117469Sluigi "comment too long (max 80 chars)"); 4502117469Sluigi l = 1 + (l+3)/4; 4503117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4504117469Sluigi for (i = 0; i < ac; i++) { 4505117469Sluigi strcpy(p, av[i]); 4506117469Sluigi p += strlen(av[i]); 4507117469Sluigi *p++ = ' '; 4508117469Sluigi } 4509117469Sluigi *(--p) = '\0'; 4510117469Sluigi} 4511117577Sluigi 4512117469Sluigi/* 451398943Sluigi * A function to fill simple commands of size 1. 451498943Sluigi * Existing flags are preserved. 451598943Sluigi */ 451698943Sluigistatic void 4517117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 451898943Sluigi{ 451998943Sluigi cmd->opcode = opcode; 452098943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 452198943Sluigi cmd->arg1 = arg; 452298943Sluigi} 452398943Sluigi 452498943Sluigi/* 452598943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 452698943Sluigi * two microinstructions, and returns the pointer to the last one. 452798943Sluigi */ 452898943Sluigistatic ipfw_insn * 452998943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 453098943Sluigi{ 4531102087Sluigi ipfw_insn_mac *mac; 453298943Sluigi 4533102087Sluigi if (ac < 2) 4534102098Sluigi errx(EX_DATAERR, "MAC dst src"); 453598943Sluigi 453698943Sluigi cmd->opcode = O_MACADDR2; 453798943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 453898943Sluigi 453998943Sluigi mac = (ipfw_insn_mac *)cmd; 4540101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4541169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4542169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4543102087Sluigi return cmd; 4544102087Sluigi} 454598943Sluigi 4546102087Sluigistatic ipfw_insn * 4547102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4548102087Sluigi{ 4549102087Sluigi if (ac < 1) 4550102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4551102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4552102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 455398943Sluigi cmd->opcode = O_MAC_TYPE; 4554102087Sluigi return cmd; 4555102087Sluigi } else 4556102087Sluigi return NULL; 4557102087Sluigi} 455898943Sluigi 4559102087Sluigistatic ipfw_insn * 4560152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4561102087Sluigi{ 4562102087Sluigi struct protoent *pe; 4563152923Sume char *ep; 4564152923Sume int proto; 4565102087Sluigi 4566156315Sume proto = strtol(av, &ep, 10); 4567156315Sume if (*ep != '\0' || proto <= 0) { 4568152923Sume if ((pe = getprotobyname(av)) == NULL) 4569152923Sume return NULL; 4570152923Sume proto = pe->p_proto; 4571152923Sume } 4572145246Sbrooks 4573152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4574152923Sume *protop = proto; 4575152923Sume return cmd; 4576152923Sume} 4577152923Sume 4578152923Sumestatic ipfw_insn * 4579152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4580152923Sume{ 4581152923Sume u_char proto = IPPROTO_IP; 4582152923Sume 4583156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4584146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4585152923Sume else if (strcmp(av, "ip4") == 0) 4586152923Sume /* explicit "just IPv4" rule */ 4587152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4588152923Sume else if (strcmp(av, "ip6") == 0) { 4589152923Sume /* explicit "just IPv6" rule */ 4590152923Sume proto = IPPROTO_IPV6; 4591152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4592152923Sume } else 4593152923Sume return add_proto0(cmd, av, protop); 4594152923Sume 4595152923Sume *protop = proto; 4596152923Sume return cmd; 4597152923Sume} 4598152923Sume 4599152923Sumestatic ipfw_insn * 4600152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4601152923Sume{ 4602152923Sume u_char proto = IPPROTO_IP; 4603152923Sume 4604152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4605152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4606146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4607146894Smlaier /* explicit "just IPv4" rule */ 4608146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4609146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4610146894Smlaier /* explicit "just IPv6" rule */ 4611152923Sume proto = IPPROTO_IPV6; 4612146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4613152923Sume } else 4614152923Sume return add_proto0(cmd, av, protop); 4615145246Sbrooks 4616152923Sume *protop = proto; 461798943Sluigi return cmd; 461898943Sluigi} 461998943Sluigi 4620102087Sluigistatic ipfw_insn * 4621102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4622102087Sluigi{ 4623102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4624102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4625102087Sluigi cmd->opcode = O_IP_SRC_SET; 4626130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4627130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4628102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4629102087Sluigi cmd->opcode = O_IP_SRC_ME; 4630102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4631102087Sluigi cmd->opcode = O_IP_SRC; 4632117328Sluigi else /* addr/mask */ 4633102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4634102087Sluigi return cmd; 4635102087Sluigi} 4636102087Sluigi 4637102087Sluigistatic ipfw_insn * 4638102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4639102087Sluigi{ 4640102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4641102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4642102087Sluigi ; 4643130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4644130281Sru ; 4645102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4646102087Sluigi cmd->opcode = O_IP_DST_ME; 4647102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4648102087Sluigi cmd->opcode = O_IP_DST; 4649117328Sluigi else /* addr/mask */ 4650102087Sluigi cmd->opcode = O_IP_DST_MASK; 4651102087Sluigi return cmd; 4652102087Sluigi} 4653102087Sluigi 4654102087Sluigistatic ipfw_insn * 4655102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4656102087Sluigi{ 4657140271Sbrooks if (_substrcmp(av, "any") == 0) { 4658102087Sluigi return NULL; 4659102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4660102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4661102087Sluigi cmd->opcode = opcode; 4662102087Sluigi return cmd; 4663102087Sluigi } 4664102087Sluigi return NULL; 4665102087Sluigi} 4666102087Sluigi 4667145246Sbrooksstatic ipfw_insn * 4668145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 4669145246Sbrooks{ 4670145246Sbrooks struct in6_addr a; 4671158553Smlaier char *host, *ch; 4672158553Smlaier ipfw_insn *ret = NULL; 4673145246Sbrooks 4674158553Smlaier if ((host = strdup(av)) == NULL) 4675158553Smlaier return NULL; 4676158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4677158553Smlaier *ch = '\0'; 4678158553Smlaier 4679145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4680158553Smlaier inet_pton(AF_INET6, host, &a)) 4681158553Smlaier ret = add_srcip6(cmd, av); 4682145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4683161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4684161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4685158553Smlaier ret = add_srcip(cmd, av); 4686161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4687158553Smlaier ret = cmd; 4688145246Sbrooks 4689158553Smlaier free(host); 4690158553Smlaier return ret; 4691145246Sbrooks} 4692145246Sbrooks 4693145246Sbrooksstatic ipfw_insn * 4694145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4695145246Sbrooks{ 4696145246Sbrooks struct in6_addr a; 4697158553Smlaier char *host, *ch; 4698158553Smlaier ipfw_insn *ret = NULL; 4699145246Sbrooks 4700158553Smlaier if ((host = strdup(av)) == NULL) 4701158553Smlaier return NULL; 4702158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4703158553Smlaier *ch = '\0'; 4704158553Smlaier 4705145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4706158553Smlaier inet_pton(AF_INET6, host, &a)) 4707158553Smlaier ret = add_dstip6(cmd, av); 4708145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4709161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4710161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4711158553Smlaier ret = add_dstip(cmd, av); 4712161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4713158553Smlaier ret = cmd; 4714145246Sbrooks 4715158553Smlaier free(host); 4716158553Smlaier return ret; 4717145246Sbrooks} 4718145246Sbrooks 471998943Sluigi/* 472098943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 472198943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 472298943Sluigi * into the actual rule. 472398943Sluigi * 4724136071Sgreen * The syntax for a rule starts with the action, followed by 4725136071Sgreen * optional action parameters, and the various match patterns. 4726108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 472798943Sluigi * (generated if the rule includes a keep-state option), then the 4728136071Sgreen * various match patterns, log/altq actions, and the actual action. 4729106505Smaxim * 473098943Sluigi */ 473198943Sluigistatic void 473298943Sluigiadd(int ac, char *av[]) 473398943Sluigi{ 473498943Sluigi /* 473598943Sluigi * rules are added into the 'rulebuf' and then copied in 473698943Sluigi * the correct order into the actual rule. 473798943Sluigi * Some things that need to go out of order (prob, action etc.) 473898943Sluigi * go into actbuf[]. 473998943Sluigi */ 4740117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 474198943Sluigi 4742117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4743102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 474498943Sluigi 474598943Sluigi struct ip_fw *rule; 474698943Sluigi 474798943Sluigi /* 474898943Sluigi * various flags used to record that we entered some fields. 474998943Sluigi */ 4750101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4751158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4752134475Smaxim size_t len; 475398943Sluigi 475498943Sluigi int i; 475598943Sluigi 475698943Sluigi int open_par = 0; /* open parenthesis ( */ 475798943Sluigi 475898943Sluigi /* proto is here because it is used to fetch ports */ 475998943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 476098943Sluigi 4761107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4762107289Sluigi 476398943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 476498943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 476598943Sluigi bzero(rulebuf, sizeof(rulebuf)); 476698943Sluigi 476798943Sluigi rule = (struct ip_fw *)rulebuf; 476898943Sluigi cmd = (ipfw_insn *)cmdbuf; 476998943Sluigi action = (ipfw_insn *)actbuf; 477098943Sluigi 477198943Sluigi av++; ac--; 477298943Sluigi 477398943Sluigi /* [rule N] -- Rule number optional */ 477498943Sluigi if (ac && isdigit(**av)) { 477598943Sluigi rule->rulenum = atoi(*av); 477698943Sluigi av++; 477798943Sluigi ac--; 477898943Sluigi } 477998943Sluigi 4780117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4781140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4782101628Sluigi int set = strtoul(av[1], NULL, 10); 4783117655Sluigi if (set < 0 || set > RESVD_SET) 4784101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4785101628Sluigi rule->set = set; 4786101628Sluigi av += 2; ac -= 2; 4787101628Sluigi } 4788101628Sluigi 478998943Sluigi /* [prob D] -- match probability, optional */ 4790140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4791107289Sluigi match_prob = strtod(av[1], NULL); 479298943Sluigi 4793107289Sluigi if (match_prob <= 0 || match_prob > 1) 479498943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 479598943Sluigi av += 2; ac -= 2; 479698943Sluigi } 479798943Sluigi 479898943Sluigi /* action -- mandatory */ 479998943Sluigi NEED1("missing action"); 480098943Sluigi i = match_token(rule_actions, *av); 480198943Sluigi ac--; av++; 480298943Sluigi action->len = 1; /* default */ 480398943Sluigi switch(i) { 480498943Sluigi case TOK_CHECKSTATE: 4805101116Sluigi have_state = action; 480698943Sluigi action->opcode = O_CHECK_STATE; 480798943Sluigi break; 480898943Sluigi 480998943Sluigi case TOK_ACCEPT: 481098943Sluigi action->opcode = O_ACCEPT; 481198943Sluigi break; 481298943Sluigi 481398943Sluigi case TOK_DENY: 481498943Sluigi action->opcode = O_DENY; 481599475Sluigi action->arg1 = 0; 481698943Sluigi break; 481798943Sluigi 481899475Sluigi case TOK_REJECT: 481999475Sluigi action->opcode = O_REJECT; 482099475Sluigi action->arg1 = ICMP_UNREACH_HOST; 482199475Sluigi break; 482299475Sluigi 482399475Sluigi case TOK_RESET: 482499475Sluigi action->opcode = O_REJECT; 482599475Sluigi action->arg1 = ICMP_REJECT_RST; 482699475Sluigi break; 482799475Sluigi 4828149020Sbz case TOK_RESET6: 4829149020Sbz action->opcode = O_UNREACH6; 4830149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4831149020Sbz break; 4832149020Sbz 483399475Sluigi case TOK_UNREACH: 483499475Sluigi action->opcode = O_REJECT; 483599475Sluigi NEED1("missing reject code"); 483699475Sluigi fill_reject_code(&action->arg1, *av); 483799475Sluigi ac--; av++; 483899475Sluigi break; 483999475Sluigi 4840149020Sbz case TOK_UNREACH6: 4841149020Sbz action->opcode = O_UNREACH6; 4842149020Sbz NEED1("missing unreach code"); 4843149020Sbz fill_unreach6_code(&action->arg1, *av); 4844149020Sbz ac--; av++; 4845149020Sbz break; 4846149020Sbz 484798943Sluigi case TOK_COUNT: 484898943Sluigi action->opcode = O_COUNT; 484998943Sluigi break; 485098943Sluigi 4851176517Spiso case TOK_NAT: 4852176517Spiso action->opcode = O_NAT; 4853176517Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4854176517Spiso goto chkarg; 485598943Sluigi case TOK_QUEUE: 4856153374Sglebius action->opcode = O_QUEUE; 4857153374Sglebius goto chkarg; 485898943Sluigi case TOK_PIPE: 4859153374Sglebius action->opcode = O_PIPE; 4860153374Sglebius goto chkarg; 486198943Sluigi case TOK_SKIPTO: 4862153374Sglebius action->opcode = O_SKIPTO; 4863153374Sglebius goto chkarg; 4864153374Sglebius case TOK_NETGRAPH: 4865153374Sglebius action->opcode = O_NETGRAPH; 4866153374Sglebius goto chkarg; 4867153374Sglebius case TOK_NGTEE: 4868153374Sglebius action->opcode = O_NGTEE; 4869153374Sglebius goto chkarg; 487098943Sluigi case TOK_DIVERT: 4871153374Sglebius action->opcode = O_DIVERT; 4872153374Sglebius goto chkarg; 487398943Sluigi case TOK_TEE: 4874153374Sglebius action->opcode = O_TEE; 4875153374Sglebiuschkarg: 4876153374Sglebius if (!ac) 4877153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4878153374Sglebius if (isdigit(**av)) { 4879153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4880153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4881153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4882153374Sglebius *(av - 1)); 4883153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 4884153374Sglebius action->arg1 = IP_FW_TABLEARG; 4885153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 488698943Sluigi struct servent *s; 488798943Sluigi setservent(1); 488898943Sluigi s = getservbyname(av[0], "divert"); 488998943Sluigi if (s != NULL) 489098943Sluigi action->arg1 = ntohs(s->s_port); 489198943Sluigi else 489298943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4893153374Sglebius } else 4894153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 489598943Sluigi ac--; av++; 489698943Sluigi break; 489798943Sluigi 489898943Sluigi case TOK_FORWARD: { 489998943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 490098943Sluigi char *s, *end; 490198943Sluigi 490298943Sluigi NEED1("missing forward address[:port]"); 490398943Sluigi 490498943Sluigi action->opcode = O_FORWARD_IP; 490598943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 490698943Sluigi 490798943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 490898943Sluigi p->sa.sin_family = AF_INET; 490998943Sluigi p->sa.sin_port = 0; 491098943Sluigi /* 491198943Sluigi * locate the address-port separator (':' or ',') 491298943Sluigi */ 491398943Sluigi s = strchr(*av, ':'); 491498943Sluigi if (s == NULL) 491598943Sluigi s = strchr(*av, ','); 491698943Sluigi if (s != NULL) { 491798943Sluigi *(s++) = '\0'; 491898943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 491998943Sluigi if (s == end) 492098943Sluigi errx(EX_DATAERR, 492198943Sluigi "illegal forwarding port ``%s''", s); 4922103241Sluigi p->sa.sin_port = (u_short)i; 492398943Sluigi } 4924161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4925161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4926161456Sjulian else 4927161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 492898943Sluigi ac--; av++; 492998943Sluigi break; 4930161424Sjulian } 4931117469Sluigi case TOK_COMMENT: 4932117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4933117469Sluigi action->opcode = O_COUNT; 4934117469Sluigi ac++; av--; /* go back... */ 4935117469Sluigi break; 4936165648Spiso 493798943Sluigi default: 4938102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 493998943Sluigi } 494098943Sluigi action = next_cmd(action); 494198943Sluigi 494298943Sluigi /* 4943136071Sgreen * [altq queuename] -- altq tag, optional 494498943Sluigi * [log [logamount N]] -- log, optional 494598943Sluigi * 4946136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 494798943Sluigi * skipped in the copy section to the end of the buffer. 494898943Sluigi */ 4949136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4950136071Sgreen ac--; av++; 4951136071Sgreen switch (i) { 4952136071Sgreen case TOK_LOG: 4953136071Sgreen { 4954136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4955136071Sgreen int l; 495698943Sluigi 4957136071Sgreen if (have_log) 4958136071Sgreen errx(EX_DATAERR, 4959136071Sgreen "log cannot be specified more than once"); 4960136071Sgreen have_log = (ipfw_insn *)c; 4961136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 4962136071Sgreen cmd->opcode = O_LOG; 4963140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 4964136071Sgreen ac--; av++; 4965136071Sgreen NEED1("logamount requires argument"); 4966136071Sgreen l = atoi(*av); 4967136071Sgreen if (l < 0) 4968136071Sgreen errx(EX_DATAERR, 4969136071Sgreen "logamount must be positive"); 4970136071Sgreen c->max_log = l; 4971136071Sgreen ac--; av++; 4972136071Sgreen } else { 4973136071Sgreen len = sizeof(c->max_log); 4974136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 4975136071Sgreen &c->max_log, &len, NULL, 0) == -1) 4976136071Sgreen errx(1, "sysctlbyname(\"%s\")", 4977136071Sgreen "net.inet.ip.fw.verbose_limit"); 4978136071Sgreen } 4979136071Sgreen } 4980136071Sgreen break; 4981136071Sgreen 4982136071Sgreen case TOK_ALTQ: 4983136071Sgreen { 4984136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4985136071Sgreen 4986136071Sgreen NEED1("missing altq queue name"); 4987136071Sgreen if (have_altq) 4988136071Sgreen errx(EX_DATAERR, 4989136071Sgreen "altq cannot be specified more than once"); 4990136071Sgreen have_altq = (ipfw_insn *)a; 4991136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4992136071Sgreen cmd->opcode = O_ALTQ; 4993136071Sgreen fill_altq_qid(&a->qid, *av); 499498943Sluigi ac--; av++; 4995136071Sgreen } 4996136071Sgreen break; 4997136071Sgreen 4998158879Soleg case TOK_TAG: 4999159636Soleg case TOK_UNTAG: { 5000159636Soleg uint16_t tag; 5001159636Soleg 5002158879Soleg if (have_tag) 5003159636Soleg errx(EX_USAGE, "tag and untag cannot be " 5004159636Soleg "specified more than once"); 5005159636Soleg GET_UINT_ARG(tag, 1, 65534, i, rule_action_params); 5006158879Soleg have_tag = cmd; 5007159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 5008158879Soleg ac--; av++; 5009158879Soleg break; 5010159636Soleg } 5011158879Soleg 5012136071Sgreen default: 5013136071Sgreen abort(); 501498943Sluigi } 501598943Sluigi cmd = next_cmd(cmd); 501698943Sluigi } 501798943Sluigi 5018101116Sluigi if (have_state) /* must be a check-state, we are done */ 501998943Sluigi goto done; 502098943Sluigi 502198943Sluigi#define OR_START(target) \ 502298943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 502398943Sluigi if (open_par) \ 502498943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 5025101641Sluigi prev = NULL; \ 502698943Sluigi open_par = 1; \ 502798943Sluigi if ( (av[0])[1] == '\0') { \ 502898943Sluigi ac--; av++; \ 502998943Sluigi } else \ 503098943Sluigi (*av)++; \ 503198943Sluigi } \ 503298943Sluigi target: \ 503398943Sluigi 503498943Sluigi 503598943Sluigi#define CLOSE_PAR \ 503698943Sluigi if (open_par) { \ 503798943Sluigi if (ac && ( \ 5038140271Sbrooks strcmp(*av, ")") == 0 || \ 5039140271Sbrooks strcmp(*av, "}") == 0)) { \ 5040101641Sluigi prev = NULL; \ 504198943Sluigi open_par = 0; \ 504298943Sluigi ac--; av++; \ 504398943Sluigi } else \ 504498943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 504598943Sluigi } 5046106505Smaxim 504798943Sluigi#define NOT_BLOCK \ 5048140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 504998943Sluigi if (cmd->len & F_NOT) \ 505098943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 505198943Sluigi cmd->len |= F_NOT; \ 505298943Sluigi ac--; av++; \ 505398943Sluigi } 505498943Sluigi 505598943Sluigi#define OR_BLOCK(target) \ 5056140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 505798943Sluigi if (prev == NULL || open_par == 0) \ 505898943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 505998943Sluigi prev->len |= F_OR; \ 506098943Sluigi ac--; av++; \ 506198943Sluigi goto target; \ 506298943Sluigi } \ 506398943Sluigi CLOSE_PAR; 506498943Sluigi 5065102087Sluigi first_cmd = cmd; 5066102098Sluigi 5067102098Sluigi#if 0 506898943Sluigi /* 5069102087Sluigi * MAC addresses, optional. 5070102087Sluigi * If we have this, we skip the part "proto from src to dst" 5071102087Sluigi * and jump straight to the option parsing. 5072102087Sluigi */ 5073102087Sluigi NOT_BLOCK; 5074102087Sluigi NEED1("missing protocol"); 5075140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5076140271Sbrooks _substrcmp(*av, "mac") == 0) { 5077102087Sluigi ac--; av++; /* the "MAC" keyword */ 5078102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5079102087Sluigi cmd = next_cmd(cmd); 5080102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5081102087Sluigi NOT_BLOCK; 5082102087Sluigi NEED1("missing mac type"); 5083102087Sluigi if (add_mactype(cmd, ac, av[0])) 5084102087Sluigi cmd = next_cmd(cmd); 5085102087Sluigi ac--; av++; /* any or mac-type */ 5086102087Sluigi goto read_options; 5087102087Sluigi } 5088102098Sluigi#endif 5089102087Sluigi 5090102087Sluigi /* 509198943Sluigi * protocol, mandatory 509298943Sluigi */ 509398943Sluigi OR_START(get_proto); 509498943Sluigi NOT_BLOCK; 509598943Sluigi NEED1("missing protocol"); 5096152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5097102087Sluigi av++; ac--; 5098147105Smlaier if (F_LEN(cmd) != 0) { 5099102087Sluigi prev = cmd; 5100102087Sluigi cmd = next_cmd(cmd); 5101102087Sluigi } 5102102098Sluigi } else if (first_cmd != cmd) { 5103116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5104102098Sluigi } else 5105102098Sluigi goto read_options; 510698943Sluigi OR_BLOCK(get_proto); 510798943Sluigi 510898943Sluigi /* 5109102087Sluigi * "from", mandatory 511098943Sluigi */ 5111140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 511298943Sluigi errx(EX_USAGE, "missing ``from''"); 511398943Sluigi ac--; av++; 511498943Sluigi 511598943Sluigi /* 511698943Sluigi * source IP, mandatory 511798943Sluigi */ 511898943Sluigi OR_START(source_ip); 511998943Sluigi NOT_BLOCK; /* optional "not" */ 512098943Sluigi NEED1("missing source address"); 5121145246Sbrooks if (add_src(cmd, *av, proto)) { 5122102087Sluigi ac--; av++; 5123102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5124102087Sluigi prev = cmd; 5125102087Sluigi cmd = next_cmd(cmd); 5126102087Sluigi } 5127145246Sbrooks } else 5128145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 512998943Sluigi OR_BLOCK(source_ip); 513098943Sluigi 513198943Sluigi /* 513298943Sluigi * source ports, optional 513398943Sluigi */ 513498943Sluigi NOT_BLOCK; /* optional "not" */ 5135101641Sluigi if (ac) { 5136140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5137102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5138102087Sluigi ac--; av++; 5139102087Sluigi if (F_LEN(cmd) != 0) 5140102087Sluigi cmd = next_cmd(cmd); 5141101641Sluigi } 514298943Sluigi } 514398943Sluigi 514498943Sluigi /* 5145102087Sluigi * "to", mandatory 514698943Sluigi */ 5147140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 514898943Sluigi errx(EX_USAGE, "missing ``to''"); 514998943Sluigi av++; ac--; 515098943Sluigi 515198943Sluigi /* 515298943Sluigi * destination, mandatory 515398943Sluigi */ 515498943Sluigi OR_START(dest_ip); 515598943Sluigi NOT_BLOCK; /* optional "not" */ 515698943Sluigi NEED1("missing dst address"); 5157145246Sbrooks if (add_dst(cmd, *av, proto)) { 5158102087Sluigi ac--; av++; 5159102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5160102087Sluigi prev = cmd; 5161102087Sluigi cmd = next_cmd(cmd); 5162102087Sluigi } 5163145246Sbrooks } else 5164145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 516598943Sluigi OR_BLOCK(dest_ip); 516698943Sluigi 516798943Sluigi /* 516898943Sluigi * dest. ports, optional 516998943Sluigi */ 517098943Sluigi NOT_BLOCK; /* optional "not" */ 5171101641Sluigi if (ac) { 5172140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5173102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5174102087Sluigi ac--; av++; 5175102087Sluigi if (F_LEN(cmd) != 0) 5176102087Sluigi cmd = next_cmd(cmd); 5177101641Sluigi } 517898943Sluigi } 517998943Sluigi 518098943Sluigiread_options: 5181102087Sluigi if (ac && first_cmd == cmd) { 5182102087Sluigi /* 5183102087Sluigi * nothing specified so far, store in the rule to ease 5184102087Sluigi * printout later. 5185102087Sluigi */ 5186102087Sluigi rule->_pad = 1; 5187102087Sluigi } 518898943Sluigi prev = NULL; 518998943Sluigi while (ac) { 5190101641Sluigi char *s; 5191101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 519298943Sluigi 5193101641Sluigi s = *av; 5194101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5195101641Sluigi 519698943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 519798943Sluigi if (cmd->len & F_NOT) 519898943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 519998943Sluigi cmd->len = F_NOT; 520098943Sluigi s++; 520198943Sluigi } 520298943Sluigi i = match_token(rule_options, s); 520398943Sluigi ac--; av++; 520498943Sluigi switch(i) { 520598943Sluigi case TOK_NOT: 520698943Sluigi if (cmd->len & F_NOT) 520798943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 520898943Sluigi cmd->len = F_NOT; 520998943Sluigi break; 521098943Sluigi 521198943Sluigi case TOK_OR: 5212101641Sluigi if (open_par == 0 || prev == NULL) 521398943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 521498943Sluigi prev->len |= F_OR; 521598943Sluigi break; 5216101641Sluigi 5217101641Sluigi case TOK_STARTBRACE: 5218101641Sluigi if (open_par) 5219101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5220101641Sluigi open_par = 1; 5221101641Sluigi break; 5222101641Sluigi 5223101641Sluigi case TOK_ENDBRACE: 5224101641Sluigi if (!open_par) 5225101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5226101641Sluigi open_par = 0; 5227102087Sluigi prev = NULL; 5228101641Sluigi break; 5229101641Sluigi 523098943Sluigi case TOK_IN: 523198943Sluigi fill_cmd(cmd, O_IN, 0, 0); 523298943Sluigi break; 523398943Sluigi 523498943Sluigi case TOK_OUT: 523598943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 523698943Sluigi fill_cmd(cmd, O_IN, 0, 0); 523798943Sluigi break; 523898943Sluigi 5239136073Sgreen case TOK_DIVERTED: 5240136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5241136073Sgreen break; 5242136073Sgreen 5243136073Sgreen case TOK_DIVERTEDLOOPBACK: 5244136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5245136073Sgreen break; 5246136073Sgreen 5247136073Sgreen case TOK_DIVERTEDOUTPUT: 5248136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5249136073Sgreen break; 5250136073Sgreen 525198943Sluigi case TOK_FRAG: 525298943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 525398943Sluigi break; 525498943Sluigi 525598943Sluigi case TOK_LAYER2: 525698943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 525798943Sluigi break; 525898943Sluigi 525998943Sluigi case TOK_XMIT: 526098943Sluigi case TOK_RECV: 526198943Sluigi case TOK_VIA: 526298943Sluigi NEED1("recv, xmit, via require interface name" 526398943Sluigi " or address"); 526498943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 526598943Sluigi ac--; av++; 526698943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 526798943Sluigi break; 526898943Sluigi if (i == TOK_XMIT) 526998943Sluigi cmd->opcode = O_XMIT; 527098943Sluigi else if (i == TOK_RECV) 527198943Sluigi cmd->opcode = O_RECV; 527298943Sluigi else if (i == TOK_VIA) 527398943Sluigi cmd->opcode = O_VIA; 527498943Sluigi break; 527598943Sluigi 527699475Sluigi case TOK_ICMPTYPES: 527799475Sluigi NEED1("icmptypes requires list of types"); 527899475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 527999475Sluigi av++; ac--; 528099475Sluigi break; 5281145246Sbrooks 5282145246Sbrooks case TOK_ICMP6TYPES: 5283145246Sbrooks NEED1("icmptypes requires list of types"); 5284145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5285145246Sbrooks av++; ac--; 5286145246Sbrooks break; 528799475Sluigi 528898943Sluigi case TOK_IPTTL: 528998943Sluigi NEED1("ipttl requires TTL"); 5290116690Sluigi if (strpbrk(*av, "-,")) { 5291116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5292116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5293116690Sluigi } else 5294116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 529598943Sluigi ac--; av++; 529698943Sluigi break; 529798943Sluigi 529898943Sluigi case TOK_IPID: 5299116690Sluigi NEED1("ipid requires id"); 5300116690Sluigi if (strpbrk(*av, "-,")) { 5301116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5302116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5303116690Sluigi } else 5304116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 530598943Sluigi ac--; av++; 530698943Sluigi break; 530798943Sluigi 530898943Sluigi case TOK_IPLEN: 530998943Sluigi NEED1("iplen requires length"); 5310116690Sluigi if (strpbrk(*av, "-,")) { 5311116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5312116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5313116690Sluigi } else 5314116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 531598943Sluigi ac--; av++; 531698943Sluigi break; 531798943Sluigi 531898943Sluigi case TOK_IPVER: 531998943Sluigi NEED1("ipver requires version"); 532098943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 532198943Sluigi ac--; av++; 532298943Sluigi break; 532398943Sluigi 532499475Sluigi case TOK_IPPRECEDENCE: 532599475Sluigi NEED1("ipprecedence requires value"); 532699475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 532799475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 532899475Sluigi ac--; av++; 532999475Sluigi break; 533099475Sluigi 533198943Sluigi case TOK_IPOPTS: 533298943Sluigi NEED1("missing argument for ipoptions"); 5333101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 533498943Sluigi ac--; av++; 533598943Sluigi break; 533698943Sluigi 533799475Sluigi case TOK_IPTOS: 533899475Sluigi NEED1("missing argument for iptos"); 5339101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 534099475Sluigi ac--; av++; 534199475Sluigi break; 534299475Sluigi 534398943Sluigi case TOK_UID: 534498943Sluigi NEED1("uid requires argument"); 534598943Sluigi { 534698943Sluigi char *end; 534798943Sluigi uid_t uid; 534898943Sluigi struct passwd *pwd; 534998943Sluigi 535098943Sluigi cmd->opcode = O_UID; 535198943Sluigi uid = strtoul(*av, &end, 0); 535298943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 535398943Sluigi if (pwd == NULL) 535498943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5355106504Smaxim cmd32->d[0] = pwd->pw_uid; 5356135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 535798943Sluigi ac--; av++; 535898943Sluigi } 535998943Sluigi break; 536098943Sluigi 536198943Sluigi case TOK_GID: 536298943Sluigi NEED1("gid requires argument"); 536398943Sluigi { 536498943Sluigi char *end; 536598943Sluigi gid_t gid; 536698943Sluigi struct group *grp; 536798943Sluigi 536898943Sluigi cmd->opcode = O_GID; 536998943Sluigi gid = strtoul(*av, &end, 0); 537098943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 537198943Sluigi if (grp == NULL) 537298943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5373106504Smaxim cmd32->d[0] = grp->gr_gid; 5374135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 537598943Sluigi ac--; av++; 537698943Sluigi } 537798943Sluigi break; 537898943Sluigi 5379133600Scsjp case TOK_JAIL: 5380133600Scsjp NEED1("jail requires argument"); 5381133600Scsjp { 5382133600Scsjp char *end; 5383133600Scsjp int jid; 5384133600Scsjp 5385133600Scsjp cmd->opcode = O_JAIL; 5386133600Scsjp jid = (int)strtol(*av, &end, 0); 5387133600Scsjp if (jid < 0 || *end != '\0') 5388133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5389135554Scsjp cmd32->d[0] = (uint32_t)jid; 5390135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5391133600Scsjp ac--; av++; 5392133600Scsjp } 5393133600Scsjp break; 5394133600Scsjp 539598943Sluigi case TOK_ESTAB: 539698943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 539798943Sluigi break; 539898943Sluigi 539998943Sluigi case TOK_SETUP: 540098943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 540198943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 540298943Sluigi break; 540398943Sluigi 5404136075Sgreen case TOK_TCPDATALEN: 5405136075Sgreen NEED1("tcpdatalen requires length"); 5406136075Sgreen if (strpbrk(*av, "-,")) { 5407136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5408136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5409136075Sgreen } else 5410136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5411136075Sgreen strtoul(*av, NULL, 0)); 5412136075Sgreen ac--; av++; 5413136075Sgreen break; 5414136075Sgreen 541598943Sluigi case TOK_TCPOPTS: 541698943Sluigi NEED1("missing argument for tcpoptions"); 541798943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 541898943Sluigi ac--; av++; 541998943Sluigi break; 542098943Sluigi 542198943Sluigi case TOK_TCPSEQ: 542298943Sluigi case TOK_TCPACK: 542398943Sluigi NEED1("tcpseq/tcpack requires argument"); 542498943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 542598943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 542698943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 542798943Sluigi ac--; av++; 542898943Sluigi break; 542998943Sluigi 543098943Sluigi case TOK_TCPWIN: 543198943Sluigi NEED1("tcpwin requires length"); 543298943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 543398943Sluigi htons(strtoul(*av, NULL, 0))); 543498943Sluigi ac--; av++; 543598943Sluigi break; 543698943Sluigi 543798943Sluigi case TOK_TCPFLAGS: 543898943Sluigi NEED1("missing argument for tcpflags"); 543998943Sluigi cmd->opcode = O_TCPFLAGS; 544098943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 544198943Sluigi ac--; av++; 544298943Sluigi break; 544398943Sluigi 544498943Sluigi case TOK_KEEPSTATE: 5445101641Sluigi if (open_par) 5446101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5447101641Sluigi "of an or block"); 544899909Sluigi if (have_state) 5449101116Sluigi errx(EX_USAGE, "only one of keep-state " 545099909Sluigi "and limit is allowed"); 5451101116Sluigi have_state = cmd; 545298943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 545398943Sluigi break; 545498943Sluigi 5455159636Soleg case TOK_LIMIT: { 5456159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5457159636Soleg int val; 5458159636Soleg 5459101641Sluigi if (open_par) 5460159636Soleg errx(EX_USAGE, 5461159636Soleg "limit cannot be part of an or block"); 546299909Sluigi if (have_state) 5463168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5464159636Soleg "limit is allowed"); 5465101116Sluigi have_state = cmd; 546698943Sluigi 546798943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 546898943Sluigi cmd->opcode = O_LIMIT; 5469159636Soleg c->limit_mask = c->conn_limit = 0; 547098943Sluigi 5471159636Soleg while (ac > 0) { 5472159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 547398943Sluigi break; 547498943Sluigi c->limit_mask |= val; 547598943Sluigi ac--; av++; 547698943Sluigi } 5477159636Soleg 547898943Sluigi if (c->limit_mask == 0) 5479159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5480159636Soleg 5481159636Soleg GET_UINT_ARG(c->conn_limit, 1, 65534, TOK_LIMIT, 5482159636Soleg rule_options); 5483159636Soleg 548498943Sluigi ac--; av++; 548598943Sluigi break; 5486159636Soleg } 548798943Sluigi 5488102087Sluigi case TOK_PROTO: 5489102087Sluigi NEED1("missing protocol"); 5490145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5491102087Sluigi ac--; av++; 5492102098Sluigi } else 5493116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5494116438Smaxim *av); 5495102087Sluigi break; 5496106505Smaxim 5497102087Sluigi case TOK_SRCIP: 5498102087Sluigi NEED1("missing source IP"); 5499102087Sluigi if (add_srcip(cmd, *av)) { 5500102087Sluigi ac--; av++; 5501102087Sluigi } 5502102087Sluigi break; 5503102087Sluigi 5504102087Sluigi case TOK_DSTIP: 5505102087Sluigi NEED1("missing destination IP"); 5506102087Sluigi if (add_dstip(cmd, *av)) { 5507102087Sluigi ac--; av++; 5508102087Sluigi } 5509102087Sluigi break; 5510102087Sluigi 5511145246Sbrooks case TOK_SRCIP6: 5512145246Sbrooks NEED1("missing source IP6"); 5513145246Sbrooks if (add_srcip6(cmd, *av)) { 5514145246Sbrooks ac--; av++; 5515145246Sbrooks } 5516145246Sbrooks break; 5517145246Sbrooks 5518145246Sbrooks case TOK_DSTIP6: 5519145246Sbrooks NEED1("missing destination IP6"); 5520145246Sbrooks if (add_dstip6(cmd, *av)) { 5521145246Sbrooks ac--; av++; 5522145246Sbrooks } 5523145246Sbrooks break; 5524145246Sbrooks 5525102087Sluigi case TOK_SRCPORT: 5526102087Sluigi NEED1("missing source port"); 5527140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5528102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5529102087Sluigi ac--; av++; 5530102087Sluigi } else 5531102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5532102087Sluigi break; 5533102087Sluigi 5534102087Sluigi case TOK_DSTPORT: 5535102087Sluigi NEED1("missing destination port"); 5536140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5537102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5538102087Sluigi ac--; av++; 5539102087Sluigi } else 5540102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5541102087Sluigi *av); 5542102087Sluigi break; 5543102087Sluigi 5544102087Sluigi case TOK_MAC: 5545102087Sluigi if (add_mac(cmd, ac, av)) { 5546102087Sluigi ac -= 2; av += 2; 5547102087Sluigi } 5548102087Sluigi break; 5549102087Sluigi 5550102087Sluigi case TOK_MACTYPE: 5551102087Sluigi NEED1("missing mac type"); 5552102087Sluigi if (!add_mactype(cmd, ac, *av)) 5553116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5554102087Sluigi ac--; av++; 5555102087Sluigi break; 5556102087Sluigi 5557112250Scjc case TOK_VERREVPATH: 5558112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5559112250Scjc break; 5560116919Sluigi 5561128575Sandre case TOK_VERSRCREACH: 5562128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5563128575Sandre break; 5564128575Sandre 5565133387Sandre case TOK_ANTISPOOF: 5566133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5567133387Sandre break; 5568133387Sandre 5569117241Sluigi case TOK_IPSEC: 5570117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5571117241Sluigi break; 5572117241Sluigi 5573145246Sbrooks case TOK_IPV6: 5574145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5575145246Sbrooks break; 5576145246Sbrooks 5577146894Smlaier case TOK_IPV4: 5578146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5579146894Smlaier break; 5580146894Smlaier 5581145246Sbrooks case TOK_EXT6HDR: 5582145246Sbrooks fill_ext6hdr( cmd, *av ); 5583145246Sbrooks ac--; av++; 5584145246Sbrooks break; 5585145246Sbrooks 5586145246Sbrooks case TOK_FLOWID: 5587145246Sbrooks if (proto != IPPROTO_IPV6 ) 5588145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5589145246Sbrooks "only for ipv6 protocol\n"); 5590145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5591145246Sbrooks ac--; av++; 5592145246Sbrooks break; 5593145246Sbrooks 5594117469Sluigi case TOK_COMMENT: 5595117469Sluigi fill_comment(cmd, ac, av); 5596117469Sluigi av += ac; 5597117469Sluigi ac = 0; 5598117469Sluigi break; 5599117469Sluigi 5600158879Soleg case TOK_TAGGED: 5601159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5602158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5603159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5604159636Soleg " list: %s", *av); 5605158879Soleg } 5606159636Soleg else { 5607159636Soleg uint16_t tag; 5608159636Soleg 5609159636Soleg GET_UINT_ARG(tag, 1, 65534, TOK_TAGGED, 5610159636Soleg rule_options); 5611159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5612159636Soleg } 5613158879Soleg ac--; av++; 5614158879Soleg break; 5615158879Soleg 561698943Sluigi default: 561798943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 561898943Sluigi } 561998943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 562098943Sluigi prev = cmd; 562198943Sluigi cmd = next_cmd(cmd); 562298943Sluigi } 562398943Sluigi } 562498943Sluigi 562598943Sluigidone: 562698943Sluigi /* 562798943Sluigi * Now copy stuff into the rule. 562898943Sluigi * If we have a keep-state option, the first instruction 562998943Sluigi * must be a PROBE_STATE (which is generated here). 563098943Sluigi * If we have a LOG option, it was stored as the first command, 563198943Sluigi * and now must be moved to the top of the action part. 563298943Sluigi */ 563398943Sluigi dst = (ipfw_insn *)rule->cmd; 563498943Sluigi 563598943Sluigi /* 5636107289Sluigi * First thing to write into the command stream is the match probability. 5637107289Sluigi */ 5638107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5639107289Sluigi dst->opcode = O_PROB; 5640107289Sluigi dst->len = 2; 5641107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5642107289Sluigi dst += dst->len; 5643107289Sluigi } 5644107289Sluigi 5645107289Sluigi /* 564698943Sluigi * generate O_PROBE_STATE if necessary 564798943Sluigi */ 5648101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 564998943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 565098943Sluigi dst = next_cmd(dst); 565198943Sluigi } 5652158879Soleg 5653158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 565498943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 565598943Sluigi i = F_LEN(src); 565698943Sluigi 5657101116Sluigi switch (src->opcode) { 5658101116Sluigi case O_LOG: 5659101116Sluigi case O_KEEP_STATE: 5660101116Sluigi case O_LIMIT: 5661136071Sgreen case O_ALTQ: 5662158879Soleg case O_TAG: 5663101116Sluigi break; 5664101116Sluigi default: 5665117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 566698943Sluigi dst += i; 566798943Sluigi } 566898943Sluigi } 566998943Sluigi 567098943Sluigi /* 5671101116Sluigi * put back the have_state command as last opcode 5672101116Sluigi */ 5673101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5674101116Sluigi i = F_LEN(have_state); 5675117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5676101116Sluigi dst += i; 5677101116Sluigi } 5678101116Sluigi /* 567998943Sluigi * start action section 568098943Sluigi */ 568198943Sluigi rule->act_ofs = dst - rule->cmd; 568298943Sluigi 5683158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5684136071Sgreen if (have_log) { 5685136071Sgreen i = F_LEN(have_log); 5686136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 568798943Sluigi dst += i; 568898943Sluigi } 5689136071Sgreen if (have_altq) { 5690136071Sgreen i = F_LEN(have_altq); 5691136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5692136071Sgreen dst += i; 5693136071Sgreen } 5694158879Soleg if (have_tag) { 5695158879Soleg i = F_LEN(have_tag); 5696158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5697158879Soleg dst += i; 5698158879Soleg } 569998943Sluigi /* 570098943Sluigi * copy all other actions 570198943Sluigi */ 570298943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 570398943Sluigi i = F_LEN(src); 5704117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 570598943Sluigi dst += i; 570698943Sluigi } 570798943Sluigi 5708117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5709117469Sluigi i = (char *)dst - (char *)rule; 5710119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 571198943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 571298943Sluigi if (!do_quiet) 5713117469Sluigi show_ipfw(rule, 0, 0); 571498943Sluigi} 571598943Sluigi 571698943Sluigistatic void 5717117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 571898943Sluigi{ 5719170923Smaxim uint32_t arg, saved_arg; 572098943Sluigi int failed = EX_OK; 5721117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 5722170923Smaxim char const *errstr; 572398943Sluigi 572498943Sluigi av++; ac--; 572598943Sluigi 572698943Sluigi if (!ac) { 572798943Sluigi /* clear all entries */ 5728117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5729117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 573098943Sluigi if (!do_quiet) 5731117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5732117328Sluigi "Accounting cleared":"Logging counts reset"); 573398943Sluigi 573498943Sluigi return; 573598943Sluigi } 573698943Sluigi 573798943Sluigi while (ac) { 573898943Sluigi /* Rule number */ 573998943Sluigi if (isdigit(**av)) { 5740170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 5741170923Smaxim if (errstr) 5742170923Smaxim errx(EX_DATAERR, 5743170923Smaxim "invalid rule number %s\n", *av); 5744170923Smaxim saved_arg = arg; 5745170923Smaxim if (use_set) 5746170923Smaxim arg |= (1 << 24) | ((use_set - 1) << 16); 574798943Sluigi av++; 574898943Sluigi ac--; 5749170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 5750117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5751170923Smaxim saved_arg, name); 575298943Sluigi failed = EX_UNAVAILABLE; 575398943Sluigi } else if (!do_quiet) 5754170923Smaxim printf("Entry %d %s.\n", saved_arg, 5755117328Sluigi optname == IP_FW_ZERO ? 5756117328Sluigi "cleared" : "logging count reset"); 575798943Sluigi } else { 575898943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 575998943Sluigi } 576098943Sluigi } 576198943Sluigi if (failed != EX_OK) 576298943Sluigi exit(failed); 576398943Sluigi} 576498943Sluigi 576598943Sluigistatic void 5766117544Sluigiflush(int force) 576798943Sluigi{ 576898943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 576998943Sluigi 5770117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 577198943Sluigi int c; 577298943Sluigi 577398943Sluigi printf("Are you sure? [yn] "); 577498943Sluigi fflush(stdout); 577598943Sluigi do { 577698943Sluigi c = toupper(getc(stdin)); 577798943Sluigi while (c != '\n' && getc(stdin) != '\n') 577898943Sluigi if (feof(stdin)) 577998943Sluigi return; /* and do not flush */ 578098943Sluigi } while (c != 'Y' && c != 'N'); 578198943Sluigi printf("\n"); 578298943Sluigi if (c == 'N') /* user said no */ 578398943Sluigi return; 578498943Sluigi } 5785170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 5786170923Smaxim if (use_set) { 5787170923Smaxim uint32_t arg = ((use_set - 1) & 0xffff) | (1 << 24); 5788170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 5789170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 5790170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 579198943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 579298943Sluigi do_pipe ? "DUMMYNET" : "FW"); 579398943Sluigi if (!do_quiet) 579498943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 579598943Sluigi} 579698943Sluigi 5797117469Sluigi/* 5798117544Sluigi * Free a the (locally allocated) copy of command line arguments. 5799117469Sluigi */ 5800117544Sluigistatic void 5801117544Sluigifree_args(int ac, char **av) 5802117544Sluigi{ 5803117544Sluigi int i; 5804117544Sluigi 5805117544Sluigi for (i=0; i < ac; i++) 5806117544Sluigi free(av[i]); 5807117544Sluigi free(av); 5808117544Sluigi} 5809117544Sluigi 5810117544Sluigi/* 5811130281Sru * This one handles all table-related commands 5812130281Sru * ipfw table N add addr[/masklen] [value] 5813130281Sru * ipfw table N delete addr[/masklen] 5814130281Sru * ipfw table N flush 5815130281Sru * ipfw table N list 5816130281Sru */ 5817130281Srustatic void 5818130281Srutable_handler(int ac, char *av[]) 5819130281Sru{ 5820130281Sru ipfw_table_entry ent; 5821130281Sru ipfw_table *tbl; 5822130281Sru int do_add; 5823130281Sru char *p; 5824130281Sru socklen_t l; 5825130281Sru uint32_t a; 5826130281Sru 5827130281Sru ac--; av++; 5828130281Sru if (ac && isdigit(**av)) { 5829130281Sru ent.tbl = atoi(*av); 5830130281Sru ac--; av++; 5831130281Sru } else 5832130281Sru errx(EX_USAGE, "table number required"); 5833130281Sru NEED1("table needs command"); 5834140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5835140271Sbrooks _substrcmp(*av, "delete") == 0) { 5836130281Sru do_add = **av == 'a'; 5837130281Sru ac--; av++; 5838130281Sru if (!ac) 5839130281Sru errx(EX_USAGE, "IP address required"); 5840130281Sru p = strchr(*av, '/'); 5841130281Sru if (p) { 5842130281Sru *p++ = '\0'; 5843130281Sru ent.masklen = atoi(p); 5844130281Sru if (ent.masklen > 32) 5845130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5846130281Sru } else 5847130281Sru ent.masklen = 32; 5848130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5849130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5850130281Sru ac--; av++; 5851161424Sjulian if (do_add && ac) { 5852161424Sjulian unsigned int tval; 5853161424Sjulian /* isdigit is a bit of a hack here.. */ 5854161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5855161424Sjulian ent.value = strtoul(*av, NULL, 0); 5856161424Sjulian } else { 5857161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5858161424Sjulian /* The value must be stored in host order * 5859161424Sjulian * so that the values < 65k can be distinguished */ 5860161424Sjulian ent.value = ntohl(tval); 5861161424Sjulian } else { 5862161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5863161424Sjulian } 5864161424Sjulian } 5865161424Sjulian } else 5866130281Sru ent.value = 0; 5867130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5868157335Sjulian &ent, sizeof(ent)) < 0) { 5869155639Sjulian /* If running silent, don't bomb out on these errors. */ 5870155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5871155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5872155639Sjulian do_add ? "ADD" : "DEL"); 5873155639Sjulian /* In silent mode, react to a failed add by deleting */ 5874157332Sjulian if (do_add) { 5875155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5876155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5877155639Sjulian &ent, sizeof(ent)) < 0) 5878155639Sjulian err(EX_OSERR, 5879155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5880157332Sjulian } 5881157335Sjulian } 5882140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5883130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 5884130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5885140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5886130281Sru a = ent.tbl; 5887130281Sru l = sizeof(a); 5888130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5889130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5890130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 5891130281Sru tbl = malloc(l); 5892130281Sru if (tbl == NULL) 5893130281Sru err(EX_OSERR, "malloc"); 5894130281Sru tbl->tbl = ent.tbl; 5895130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 5896130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 5897130281Sru for (a = 0; a < tbl->cnt; a++) { 5898161424Sjulian unsigned int tval; 5899161424Sjulian tval = tbl->ent[a].value; 5900176391Sjulian if (do_value_as_ip) { 5901161424Sjulian char tbuf[128]; 5902161456Sjulian strncpy(tbuf, inet_ntoa(*(struct in_addr *) 5903161456Sjulian &tbl->ent[a].addr), 127); 5904176391Sjulian /* inet_ntoa expects network order */ 5905161424Sjulian tval = htonl(tval); 5906161456Sjulian printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 5907161456Sjulian inet_ntoa(*(struct in_addr *)&tval)); 5908161424Sjulian } else { 5909161424Sjulian printf("%s/%u %u\n", 5910161456Sjulian inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 5911176391Sjulian tbl->ent[a].masklen, tval); 5912161424Sjulian } 5913130281Sru } 5914130281Sru } else 5915130281Sru errx(EX_USAGE, "invalid table command %s", *av); 5916130281Sru} 5917130281Sru 5918165648Spisostatic void 5919165648Spisoshow_nat(int ac, char **av) { 5920165648Spiso struct cfg_nat *n; 5921165648Spiso struct cfg_redir *e; 5922165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 5923176393Spiso int nat_cnt, redir_cnt, r; 5924165648Spiso uint8_t *data, *p; 5925165648Spiso char **lav, *endptr; 5926165648Spiso 5927165648Spiso do_rule = 0; 5928165648Spiso nalloc = 1024; 5929165648Spiso size = 0; 5930165648Spiso data = NULL; 5931176445Spiso frule = 0; 5932176445Spiso lrule = 65535; /* max ipfw rule number */ 5933165648Spiso ac--; av++; 5934165648Spiso 5935165648Spiso /* Parse parameters. */ 5936165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 5937165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 5938165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 5939165648Spiso continue; 5940165648Spiso } 5941165648Spiso /* Convert command line rule #. */ 5942165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 5943165648Spiso if (*endptr == '-') 5944165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 5945165648Spiso if (lrule == 0) 5946165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 5947165648Spiso do_rule = 1; 5948165648Spiso } 5949165648Spiso 5950165648Spiso nbytes = nalloc; 5951165648Spiso while (nbytes >= nalloc) { 5952165648Spiso nalloc = nalloc * 2; 5953165648Spiso nbytes = nalloc; 5954165648Spiso if ((data = realloc(data, nbytes)) == NULL) 5955165648Spiso err(EX_OSERR, "realloc"); 5956165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 5957165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 5958165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 5959165648Spiso } 5960165648Spiso if (nbytes == 0) 5961176445Spiso exit(0); 5962165648Spiso if (do_cfg) { 5963165648Spiso nat_cnt = *((int *)data); 5964165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 5965165648Spiso n = (struct cfg_nat *)&data[i]; 5966176445Spiso if (frule <= n->id && lrule >= n->id) 5967176445Spiso print_nat_config(&data[i]); 5968165648Spiso i += sizeof(struct cfg_nat); 5969176393Spiso for (redir_cnt = 0; redir_cnt < n->redir_cnt; redir_cnt++) { 5970176393Spiso e = (struct cfg_redir *)&data[i]; 5971165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 5972165648Spiso sizeof(struct cfg_spool); 5973176393Spiso } 5974165648Spiso } 5975165648Spiso } else { 5976165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 5977165648Spiso p = &data[i]; 5978165648Spiso if (p == data + nbytes) 5979165648Spiso break; 5980165648Spiso bcopy(p, &r, sizeof(int)); 5981165648Spiso if (do_rule) { 5982165648Spiso if (!(frule <= r && lrule >= r)) 5983165648Spiso continue; 5984165648Spiso } 5985165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 5986165648Spiso } 5987165648Spiso } 5988165648Spiso} 5989165648Spiso 5990130281Sru/* 5991117544Sluigi * Called with the arguments (excluding program name). 5992117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 5993117544Sluigi */ 599498943Sluigistatic int 5995117328Sluigiipfw_main(int oldac, char **oldav) 599698943Sluigi{ 5997117469Sluigi int ch, ac, save_ac; 5998170923Smaxim const char *errstr; 5999117469Sluigi char **av, **save_av; 6000117469Sluigi int do_acct = 0; /* Show packet/byte count */ 6001117469Sluigi 6002117469Sluigi#define WHITESP " \t\f\v\n\r" 6003117544Sluigi if (oldac == 0) 6004117544Sluigi return 1; 6005117544Sluigi else if (oldac == 1) { 6006117328Sluigi /* 6007117328Sluigi * If we are called with a single string, try to split it into 6008117328Sluigi * arguments for subsequent parsing. 6009117328Sluigi * But first, remove spaces after a ',', by copying the string 6010117328Sluigi * in-place. 6011117328Sluigi */ 6012117469Sluigi char *arg = oldav[0]; /* The string... */ 6013117328Sluigi int l = strlen(arg); 6014117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 6015117328Sluigi int i, j; 6016117469Sluigi for (i = j = 0; i < l; i++) { 6017117469Sluigi if (arg[i] == '#') /* comment marker */ 6018117469Sluigi break; 6019117328Sluigi if (copy) { 6020117328Sluigi arg[j++] = arg[i]; 6021117469Sluigi copy = !index("," WHITESP, arg[i]); 6022117328Sluigi } else { 6023117469Sluigi copy = !index(WHITESP, arg[i]); 6024117328Sluigi if (copy) 6025117328Sluigi arg[j++] = arg[i]; 6026117328Sluigi } 6027117469Sluigi } 6028117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 6029117328Sluigi j--; 6030117328Sluigi l = j; /* the new argument length */ 6031117328Sluigi arg[j++] = '\0'; 6032117469Sluigi if (l == 0) /* empty string! */ 6033117544Sluigi return 1; 6034117328Sluigi 6035117328Sluigi /* 6036117328Sluigi * First, count number of arguments. Because of the previous 6037117469Sluigi * processing, this is just the number of blanks plus 1. 6038117328Sluigi */ 6039117469Sluigi for (i = 0, ac = 1; i < l; i++) 6040117469Sluigi if (index(WHITESP, arg[i]) != NULL) 6041117328Sluigi ac++; 6042117328Sluigi 6043117328Sluigi av = calloc(ac, sizeof(char *)); 6044117328Sluigi 6045117328Sluigi /* 6046117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 6047117328Sluigi * j is the initial character, i is the one past the end. 6048117328Sluigi */ 6049117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 6050117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 6051117328Sluigi if (i == l-1) 6052117328Sluigi i++; 6053117328Sluigi av[ac] = calloc(i-j+1, 1); 6054117328Sluigi bcopy(arg+j, av[ac], i-j); 6055117328Sluigi ac++; 6056117328Sluigi j = i + 1; 6057117328Sluigi } 6058117328Sluigi } else { 6059117328Sluigi /* 6060117328Sluigi * If an argument ends with ',' join with the next one. 6061117328Sluigi */ 6062117328Sluigi int first, i, l; 6063117328Sluigi 6064117328Sluigi av = calloc(oldac, sizeof(char *)); 6065117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 6066117328Sluigi char *arg = oldav[i]; 6067117328Sluigi int k = strlen(arg); 6068117328Sluigi 6069117328Sluigi l += k; 6070117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 6071117328Sluigi /* Time to copy. */ 6072117328Sluigi av[ac] = calloc(l+1, 1); 6073117328Sluigi for (l=0; first <= i; first++) { 6074117328Sluigi strcat(av[ac]+l, oldav[first]); 6075117328Sluigi l += strlen(oldav[first]); 6076117328Sluigi } 6077117328Sluigi ac++; 6078117328Sluigi l = 0; 6079117328Sluigi first = i+1; 6080117328Sluigi } 6081117328Sluigi } 6082117328Sluigi } 6083117328Sluigi 608498943Sluigi /* Set the force flag for non-interactive processes */ 6085123804Smaxim if (!do_force) 6086123804Smaxim do_force = !isatty(STDIN_FILENO); 608798943Sluigi 6088117469Sluigi /* Save arguments for final freeing of memory. */ 6089117469Sluigi save_ac = ac; 6090117469Sluigi save_av = av; 6091117469Sluigi 6092117469Sluigi optind = optreset = 0; 6093176391Sjulian while ((ch = getopt(ac, av, "abcdefhinNqs:STtv")) != -1) 609498943Sluigi switch (ch) { 609598943Sluigi case 'a': 609698943Sluigi do_acct = 1; 609798943Sluigi break; 6098117328Sluigi 6099123495Sluigi case 'b': 6100123495Sluigi comment_only = 1; 6101123495Sluigi do_compact = 1; 6102123495Sluigi break; 6103123495Sluigi 6104102098Sluigi case 'c': 6105102098Sluigi do_compact = 1; 6106102098Sluigi break; 6107117328Sluigi 610898943Sluigi case 'd': 610998943Sluigi do_dynamic = 1; 611098943Sluigi break; 6111117328Sluigi 611298943Sluigi case 'e': 611398943Sluigi do_expired = 1; 611498943Sluigi break; 6115117328Sluigi 611698943Sluigi case 'f': 611798943Sluigi do_force = 1; 611898943Sluigi break; 6119117328Sluigi 6120117328Sluigi case 'h': /* help */ 6121117544Sluigi free_args(save_ac, save_av); 6122117328Sluigi help(); 6123117328Sluigi break; /* NOTREACHED */ 6124117328Sluigi 6125176391Sjulian case 'i': 6126176391Sjulian do_value_as_ip = 1; 6127176391Sjulian break; 6128176391Sjulian 6129117328Sluigi case 'n': 6130117328Sluigi test_only = 1; 6131117328Sluigi break; 6132117328Sluigi 613398943Sluigi case 'N': 613498943Sluigi do_resolv = 1; 613598943Sluigi break; 6136117328Sluigi 613798943Sluigi case 'q': 613898943Sluigi do_quiet = 1; 613998943Sluigi break; 6140117328Sluigi 6141117328Sluigi case 's': /* sort */ 6142117328Sluigi do_sort = atoi(optarg); 6143117328Sluigi break; 6144117328Sluigi 6145101628Sluigi case 'S': 6146101628Sluigi show_sets = 1; 6147101628Sluigi break; 6148117328Sluigi 614998943Sluigi case 't': 615098943Sluigi do_time = 1; 615198943Sluigi break; 6152117328Sluigi 6153117472Sluigi case 'T': 6154117472Sluigi do_time = 2; /* numeric timestamp */ 6155117472Sluigi break; 6156117472Sluigi 615798943Sluigi case 'v': /* verbose */ 6158117328Sluigi verbose = 1; 615998943Sluigi break; 6160117328Sluigi 616198943Sluigi default: 6162117544Sluigi free_args(save_ac, save_av); 6163117544Sluigi return 1; 616498943Sluigi } 616598943Sluigi 616698943Sluigi ac -= optind; 616798943Sluigi av += optind; 616898943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 616998943Sluigi 617098943Sluigi /* 6171117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 6172117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 6173117544Sluigi * In case, swap first and second argument to get the normal form. 6174117544Sluigi */ 6175117544Sluigi if (ac > 1 && isdigit(*av[0])) { 6176117544Sluigi char *p = av[0]; 6177117544Sluigi 6178117544Sluigi av[0] = av[1]; 6179117544Sluigi av[1] = p; 6180117544Sluigi } 6181117544Sluigi 6182117544Sluigi /* 6183165648Spiso * Optional: pipe, queue or nat. 618498943Sluigi */ 6185165648Spiso do_nat = 0; 6186117821Smaxim do_pipe = 0; 6187165648Spiso if (!strncmp(*av, "nat", strlen(*av))) 6188165648Spiso do_nat = 1; 6189165648Spiso else if (!strncmp(*av, "pipe", strlen(*av))) 619098943Sluigi do_pipe = 1; 6191140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 619298943Sluigi do_pipe = 2; 6193170923Smaxim else if (!strncmp(*av, "set", strlen(*av))) { 6194170923Smaxim if (ac > 1 && isdigit(av[1][0])) { 6195170923Smaxim use_set = strtonum(av[1], 0, RESVD_SET, &errstr); 6196170923Smaxim if (errstr) 6197170923Smaxim errx(EX_DATAERR, 6198170923Smaxim "invalid set number %s\n", av[1]); 6199170923Smaxim ac -= 2; av += 2; use_set++; 6200170923Smaxim } 6201170923Smaxim } 6202170923Smaxim 6203165648Spiso if (do_pipe || do_nat) { 620498943Sluigi ac--; 620598943Sluigi av++; 620698943Sluigi } 620798943Sluigi NEED1("missing command"); 620898943Sluigi 620998943Sluigi /* 6210165648Spiso * For pipes, queues and nats we normally say 'nat|pipe NN config' 6211165648Spiso * but the code is easier to parse as 'nat|pipe config NN' 621298943Sluigi * so we swap the two arguments. 621398943Sluigi */ 6214165648Spiso if ((do_pipe || do_nat) && ac > 1 && isdigit(*av[0])) { 621598943Sluigi char *p = av[0]; 6216117544Sluigi 621798943Sluigi av[0] = av[1]; 621898943Sluigi av[1] = p; 621998943Sluigi } 6220117328Sluigi 6221170923Smaxim int try_next = 0; 6222170923Smaxim if (use_set == 0) { 6223170923Smaxim if (_substrcmp(*av, "add") == 0) 6224170923Smaxim add(ac, av); 6225170923Smaxim else if (do_nat && _substrcmp(*av, "show") == 0) 6226170923Smaxim show_nat(ac, av); 6227170923Smaxim else if (do_pipe && _substrcmp(*av, "config") == 0) 6228170923Smaxim config_pipe(ac, av); 6229170923Smaxim else if (do_nat && _substrcmp(*av, "config") == 0) 6230170923Smaxim config_nat(ac, av); 6231173080Smaxim else if (_substrcmp(*av, "set") == 0) 6232173080Smaxim sets_handler(ac, av); 6233173080Smaxim else if (_substrcmp(*av, "table") == 0) 6234173080Smaxim table_handler(ac, av); 6235173080Smaxim else if (_substrcmp(*av, "enable") == 0) 6236173080Smaxim sysctl_handler(ac, av, 1); 6237173080Smaxim else if (_substrcmp(*av, "disable") == 0) 6238173080Smaxim sysctl_handler(ac, av, 0); 6239173080Smaxim else 6240173080Smaxim try_next = 1; 6241170923Smaxim } 6242117469Sluigi 6243170923Smaxim if (use_set || try_next) { 6244170923Smaxim if (_substrcmp(*av, "delete") == 0) 6245170923Smaxim delete(ac, av); 6246170923Smaxim else if (_substrcmp(*av, "flush") == 0) 6247170923Smaxim flush(do_force); 6248170923Smaxim else if (_substrcmp(*av, "zero") == 0) 6249170923Smaxim zero(ac, av, IP_FW_ZERO); 6250170923Smaxim else if (_substrcmp(*av, "resetlog") == 0) 6251170923Smaxim zero(ac, av, IP_FW_RESETLOG); 6252170923Smaxim else if (_substrcmp(*av, "print") == 0 || 6253170923Smaxim _substrcmp(*av, "list") == 0) 6254170923Smaxim list(ac, av, do_acct); 6255170923Smaxim else if (_substrcmp(*av, "show") == 0) 6256170923Smaxim list(ac, av, 1 /* show counters */); 6257170923Smaxim else 6258170923Smaxim errx(EX_USAGE, "bad command `%s'", *av); 6259170923Smaxim } 6260170923Smaxim 6261117469Sluigi /* Free memory allocated in the argument parsing. */ 6262117544Sluigi free_args(save_ac, save_av); 626398943Sluigi return 0; 626498943Sluigi} 626598943Sluigi 626698943Sluigi 626798943Sluigistatic void 6268106505Smaximipfw_readfile(int ac, char *av[]) 626998943Sluigi{ 627098943Sluigi#define MAX_ARGS 32 627198943Sluigi char buf[BUFSIZ]; 6272117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 6273117469Sluigi int c, lineno=0; 627498943Sluigi FILE *f = NULL; 627598943Sluigi pid_t preproc = 0; 627698943Sluigi 6277117469Sluigi filename = av[ac-1]; 6278117469Sluigi 6279123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 628098943Sluigi switch(c) { 6281117469Sluigi case 'c': 6282117469Sluigi do_compact = 1; 6283117469Sluigi break; 6284117469Sluigi 6285123804Smaxim case 'f': 6286123804Smaxim do_force = 1; 6287123804Smaxim break; 6288123804Smaxim 6289117469Sluigi case 'N': 6290117469Sluigi do_resolv = 1; 6291117469Sluigi break; 6292117469Sluigi 6293117328Sluigi case 'n': 6294117328Sluigi test_only = 1; 6295117328Sluigi break; 6296117328Sluigi 629798943Sluigi case 'p': 629898943Sluigi cmd = optarg; 6299117469Sluigi /* 6300117469Sluigi * Skip previous args and delete last one, so we 6301117469Sluigi * pass all but the last argument to the preprocessor 6302117469Sluigi * via av[optind-1] 6303117469Sluigi */ 6304117469Sluigi av += optind - 1; 6305117469Sluigi ac -= optind - 1; 6306162773Smaxim if (ac < 2) 6307162773Smaxim errx(EX_USAGE, "no filename argument"); 6308117469Sluigi av[ac-1] = NULL; 6309117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 631098943Sluigi break; 631198943Sluigi 631298943Sluigi case 'q': 6313117469Sluigi do_quiet = 1; 631498943Sluigi break; 631598943Sluigi 6316117469Sluigi case 'S': 6317117469Sluigi show_sets = 1; 6318117469Sluigi break; 6319117469Sluigi 632098943Sluigi default: 632198943Sluigi errx(EX_USAGE, "bad arguments, for usage" 632298943Sluigi " summary ``ipfw''"); 632398943Sluigi } 632498943Sluigi 6325117469Sluigi if (cmd != NULL) 6326108231Skbyanc break; 6327108231Skbyanc } 6328108231Skbyanc 6329117469Sluigi if (cmd == NULL && ac != optind + 1) { 6330117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 6331117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 6332108231Skbyanc } 6333108231Skbyanc 6334117469Sluigi if ((f = fopen(filename, "r")) == NULL) 6335117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 633698943Sluigi 6337117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 633898943Sluigi int pipedes[2]; 633998943Sluigi 634098943Sluigi if (pipe(pipedes) == -1) 634198943Sluigi err(EX_OSERR, "cannot create pipe"); 634298943Sluigi 6343117469Sluigi preproc = fork(); 6344117469Sluigi if (preproc == -1) 634598943Sluigi err(EX_OSERR, "cannot fork"); 634698943Sluigi 6347117577Sluigi if (preproc == 0) { 6348117469Sluigi /* 6349117469Sluigi * Child, will run the preprocessor with the 6350117469Sluigi * file on stdin and the pipe on stdout. 6351117469Sluigi */ 635298943Sluigi if (dup2(fileno(f), 0) == -1 635398943Sluigi || dup2(pipedes[1], 1) == -1) 635498943Sluigi err(EX_OSERR, "dup2()"); 635598943Sluigi fclose(f); 635698943Sluigi close(pipedes[1]); 635798943Sluigi close(pipedes[0]); 6358117469Sluigi execvp(cmd, av); 635998943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 6360117469Sluigi } else { /* parent, will reopen f as the pipe */ 636198943Sluigi fclose(f); 636298943Sluigi close(pipedes[1]); 636398943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 636498943Sluigi int savederrno = errno; 636598943Sluigi 636698943Sluigi (void)kill(preproc, SIGTERM); 636798943Sluigi errno = savederrno; 636898943Sluigi err(EX_OSERR, "fdopen()"); 636998943Sluigi } 637098943Sluigi } 637198943Sluigi } 637298943Sluigi 6373117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 6374117469Sluigi char linename[10]; 6375117469Sluigi char *args[1]; 6376117469Sluigi 637798943Sluigi lineno++; 637898943Sluigi sprintf(linename, "Line %d", lineno); 6379117328Sluigi setprogname(linename); /* XXX */ 6380117469Sluigi args[0] = buf; 6381117469Sluigi ipfw_main(1, args); 638298943Sluigi } 638398943Sluigi fclose(f); 6384117469Sluigi if (cmd != NULL) { 6385117469Sluigi int status; 6386117469Sluigi 638798943Sluigi if (waitpid(preproc, &status, 0) == -1) 638898943Sluigi errx(EX_OSERR, "waitpid()"); 638998943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 639098943Sluigi errx(EX_UNAVAILABLE, 639198943Sluigi "preprocessor exited with status %d", 639298943Sluigi WEXITSTATUS(status)); 639398943Sluigi else if (WIFSIGNALED(status)) 639498943Sluigi errx(EX_UNAVAILABLE, 639598943Sluigi "preprocessor exited with signal %d", 639698943Sluigi WTERMSIG(status)); 639798943Sluigi } 639898943Sluigi} 639998943Sluigi 640098943Sluigiint 640198943Sluigimain(int ac, char *av[]) 640298943Sluigi{ 640398943Sluigi /* 640498943Sluigi * If the last argument is an absolute pathname, interpret it 640598943Sluigi * as a file to be preprocessed. 640698943Sluigi */ 640798943Sluigi 640898943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 640998943Sluigi ipfw_readfile(ac, av); 6410117544Sluigi else { 6411117544Sluigi if (ipfw_main(ac-1, av+1)) 6412117544Sluigi show_usage(); 6413117544Sluigi } 641498943Sluigi return EX_OK; 641598943Sluigi} 6416