ipfw2.c revision 178916
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 178916 2008-05-10 15:02:56Z julian $ 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, 344178888Sjulian 345178888Sjulian TOK_FIB, 346178888Sjulian TOK_SETFIB, 34798943Sluigi}; 34898943Sluigi 34998943Sluigistruct _s_x dummynet_params[] = { 35098943Sluigi { "plr", TOK_PLR }, 351101978Sluigi { "noerror", TOK_NOERROR }, 35298943Sluigi { "buckets", TOK_BUCKETS }, 35398943Sluigi { "dst-ip", TOK_DSTIP }, 35498943Sluigi { "src-ip", TOK_SRCIP }, 35598943Sluigi { "dst-port", TOK_DSTPORT }, 35698943Sluigi { "src-port", TOK_SRCPORT }, 35798943Sluigi { "proto", TOK_PROTO }, 35898943Sluigi { "weight", TOK_WEIGHT }, 35998943Sluigi { "all", TOK_ALL }, 36098943Sluigi { "mask", TOK_MASK }, 36198943Sluigi { "droptail", TOK_DROPTAIL }, 36298943Sluigi { "red", TOK_RED }, 36398943Sluigi { "gred", TOK_GRED }, 36498943Sluigi { "bw", TOK_BW }, 36598943Sluigi { "bandwidth", TOK_BW }, 36698943Sluigi { "delay", TOK_DELAY }, 36799475Sluigi { "pipe", TOK_PIPE }, 36898943Sluigi { "queue", TOK_QUEUE }, 369145246Sbrooks { "flow-id", TOK_FLOWID}, 370145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 371145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 372145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 373145246Sbrooks { "src-ip6", TOK_SRCIP6}, 37498943Sluigi { "dummynet-params", TOK_NULL }, 375117328Sluigi { NULL, 0 } /* terminator */ 37698943Sluigi}; 37798943Sluigi 378165648Spisostruct _s_x nat_params[] = { 379165648Spiso { "ip", TOK_IP }, 380165648Spiso { "if", TOK_IF }, 381165648Spiso { "log", TOK_ALOG }, 382165648Spiso { "deny_in", TOK_DENY_INC }, 383165648Spiso { "same_ports", TOK_SAME_PORTS }, 384165648Spiso { "unreg_only", TOK_UNREG_ONLY }, 385165648Spiso { "reset", TOK_RESET_ADDR }, 386165648Spiso { "reverse", TOK_ALIAS_REV }, 387165648Spiso { "proxy_only", TOK_PROXY_ONLY }, 388165648Spiso { "redirect_addr", TOK_REDIR_ADDR }, 389165648Spiso { "redirect_port", TOK_REDIR_PORT }, 390165648Spiso { "redirect_proto", TOK_REDIR_PROTO }, 391165648Spiso { NULL, 0 } /* terminator */ 392165648Spiso}; 393165648Spiso 39498943Sluigistruct _s_x rule_actions[] = { 39598943Sluigi { "accept", TOK_ACCEPT }, 39698943Sluigi { "pass", TOK_ACCEPT }, 39798943Sluigi { "allow", TOK_ACCEPT }, 39898943Sluigi { "permit", TOK_ACCEPT }, 39998943Sluigi { "count", TOK_COUNT }, 40098943Sluigi { "pipe", TOK_PIPE }, 40198943Sluigi { "queue", TOK_QUEUE }, 40298943Sluigi { "divert", TOK_DIVERT }, 40398943Sluigi { "tee", TOK_TEE }, 404141351Sglebius { "netgraph", TOK_NETGRAPH }, 405141351Sglebius { "ngtee", TOK_NGTEE }, 40698943Sluigi { "fwd", TOK_FORWARD }, 40798943Sluigi { "forward", TOK_FORWARD }, 40898943Sluigi { "skipto", TOK_SKIPTO }, 40998943Sluigi { "deny", TOK_DENY }, 41098943Sluigi { "drop", TOK_DENY }, 41198943Sluigi { "reject", TOK_REJECT }, 412149020Sbz { "reset6", TOK_RESET6 }, 41398943Sluigi { "reset", TOK_RESET }, 414149020Sbz { "unreach6", TOK_UNREACH6 }, 41599475Sluigi { "unreach", TOK_UNREACH }, 41698943Sluigi { "check-state", TOK_CHECKSTATE }, 417117469Sluigi { "//", TOK_COMMENT }, 418165648Spiso { "nat", TOK_NAT }, 419178888Sjulian { "setfib", TOK_SETFIB }, 420117328Sluigi { NULL, 0 } /* terminator */ 42198943Sluigi}; 42298943Sluigi 423136071Sgreenstruct _s_x rule_action_params[] = { 424136071Sgreen { "altq", TOK_ALTQ }, 425136071Sgreen { "log", TOK_LOG }, 426158879Soleg { "tag", TOK_TAG }, 427158879Soleg { "untag", TOK_UNTAG }, 428136071Sgreen { NULL, 0 } /* terminator */ 429136071Sgreen}; 430136071Sgreen 43198943Sluigistruct _s_x rule_options[] = { 432158879Soleg { "tagged", TOK_TAGGED }, 43398943Sluigi { "uid", TOK_UID }, 43498943Sluigi { "gid", TOK_GID }, 435133600Scsjp { "jail", TOK_JAIL }, 43698943Sluigi { "in", TOK_IN }, 43798943Sluigi { "limit", TOK_LIMIT }, 43898943Sluigi { "keep-state", TOK_KEEPSTATE }, 43998943Sluigi { "bridged", TOK_LAYER2 }, 44098943Sluigi { "layer2", TOK_LAYER2 }, 44198943Sluigi { "out", TOK_OUT }, 442136073Sgreen { "diverted", TOK_DIVERTED }, 443136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 444136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 44598943Sluigi { "xmit", TOK_XMIT }, 44698943Sluigi { "recv", TOK_RECV }, 44798943Sluigi { "via", TOK_VIA }, 44898943Sluigi { "fragment", TOK_FRAG }, 44998943Sluigi { "frag", TOK_FRAG }, 450178888Sjulian { "fib", TOK_FIB }, 45198943Sluigi { "ipoptions", TOK_IPOPTS }, 45298943Sluigi { "ipopts", TOK_IPOPTS }, 45398943Sluigi { "iplen", TOK_IPLEN }, 45498943Sluigi { "ipid", TOK_IPID }, 45598943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 45698943Sluigi { "iptos", TOK_IPTOS }, 45798943Sluigi { "ipttl", TOK_IPTTL }, 45898943Sluigi { "ipversion", TOK_IPVER }, 45998943Sluigi { "ipver", TOK_IPVER }, 46098943Sluigi { "estab", TOK_ESTAB }, 46198943Sluigi { "established", TOK_ESTAB }, 46298943Sluigi { "setup", TOK_SETUP }, 463136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 46498943Sluigi { "tcpflags", TOK_TCPFLAGS }, 46598943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 46698943Sluigi { "tcpoptions", TOK_TCPOPTS }, 46798943Sluigi { "tcpopts", TOK_TCPOPTS }, 46898943Sluigi { "tcpseq", TOK_TCPSEQ }, 46998943Sluigi { "tcpack", TOK_TCPACK }, 47098943Sluigi { "tcpwin", TOK_TCPWIN }, 47199909Sluigi { "icmptype", TOK_ICMPTYPES }, 47298943Sluigi { "icmptypes", TOK_ICMPTYPES }, 473102087Sluigi { "dst-ip", TOK_DSTIP }, 474102087Sluigi { "src-ip", TOK_SRCIP }, 475102087Sluigi { "dst-port", TOK_DSTPORT }, 476102087Sluigi { "src-port", TOK_SRCPORT }, 477102087Sluigi { "proto", TOK_PROTO }, 478102087Sluigi { "MAC", TOK_MAC }, 479102087Sluigi { "mac", TOK_MAC }, 480102087Sluigi { "mac-type", TOK_MACTYPE }, 481112250Scjc { "verrevpath", TOK_VERREVPATH }, 482128575Sandre { "versrcreach", TOK_VERSRCREACH }, 483133387Sandre { "antispoof", TOK_ANTISPOOF }, 484117241Sluigi { "ipsec", TOK_IPSEC }, 485145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 486145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 487145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 488145246Sbrooks { "flow-id", TOK_FLOWID}, 489145246Sbrooks { "ipv6", TOK_IPV6}, 490145246Sbrooks { "ip6", TOK_IPV6}, 491146894Smlaier { "ipv4", TOK_IPV4}, 492146894Smlaier { "ip4", TOK_IPV4}, 493145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 494145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 495145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 496145246Sbrooks { "src-ip6", TOK_SRCIP6}, 497117469Sluigi { "//", TOK_COMMENT }, 49898943Sluigi 49998943Sluigi { "not", TOK_NOT }, /* pseudo option */ 50098943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 50198943Sluigi { "or", TOK_OR }, /* pseudo option */ 50298943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 503101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 504101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 505101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 506101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 507117328Sluigi { NULL, 0 } /* terminator */ 50898943Sluigi}; 50998943Sluigi 510153374Sglebius#define TABLEARG "tablearg" 511153374Sglebius 512117328Sluigistatic __inline uint64_t 513117328Sluigialign_uint64(uint64_t *pll) { 514117328Sluigi uint64_t ret; 515115793Sticso 516115793Sticso bcopy (pll, &ret, sizeof(ret)); 517115793Sticso return ret; 518129389Sstefanf} 519115793Sticso 520117328Sluigi/* 521117328Sluigi * conditionally runs the command. 522117328Sluigi */ 523117469Sluigistatic int 524119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 525117328Sluigi{ 526117328Sluigi static int s = -1; /* the socket */ 527117328Sluigi int i; 528117577Sluigi 529117328Sluigi if (test_only) 530117328Sluigi return 0; 531117328Sluigi 532117328Sluigi if (s == -1) 533117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 534117328Sluigi if (s < 0) 535117328Sluigi err(EX_UNAVAILABLE, "socket"); 536117328Sluigi 537117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 538130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 539165648Spiso optname == IP_FW_TABLE_GETSIZE || 540165648Spiso optname == IP_FW_NAT_GET_CONFIG || 541165648Spiso optname == IP_FW_NAT_GET_LOG) 542117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 543117328Sluigi (socklen_t *)optlen); 544117328Sluigi else 545117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 546117328Sluigi return i; 547117328Sluigi} 548117328Sluigi 54998943Sluigi/** 55098943Sluigi * match_token takes a table and a string, returns the value associated 551117328Sluigi * with the string (-1 in case of failure). 55298943Sluigi */ 55398943Sluigistatic int 55498943Sluigimatch_token(struct _s_x *table, char *string) 55598943Sluigi{ 55698943Sluigi struct _s_x *pt; 557117469Sluigi uint i = strlen(string); 55898943Sluigi 55998943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 56098943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 56198943Sluigi return pt->x; 56298943Sluigi return -1; 563129389Sstefanf} 56498943Sluigi 565117328Sluigi/** 566117328Sluigi * match_value takes a table and a value, returns the string associated 567117328Sluigi * with the value (NULL in case of failure). 568117328Sluigi */ 569117469Sluigistatic char const * 570117469Sluigimatch_value(struct _s_x *p, int value) 57198943Sluigi{ 57298943Sluigi for (; p->s != NULL; p++) 57398943Sluigi if (p->x == value) 57498943Sluigi return p->s; 57598943Sluigi return NULL; 57698943Sluigi} 57798943Sluigi 57898943Sluigi/* 579140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 580140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 581140271Sbrooks * of the second. A warning is printed to stderr in the case that the 582140271Sbrooks * first string is a sub-string of the second. 583140271Sbrooks * 584140271Sbrooks * This function will be removed in the future through the usual 585140271Sbrooks * deprecation process. 586140271Sbrooks */ 587140271Sbrooksstatic int 588140271Sbrooks_substrcmp(const char *str1, const char* str2) 589140271Sbrooks{ 590140271Sbrooks 591140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 592140271Sbrooks return 1; 593140271Sbrooks 594140271Sbrooks if (strlen(str1) != strlen(str2)) 595140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 596140271Sbrooks str1, str2); 597140271Sbrooks return 0; 598140271Sbrooks} 599140271Sbrooks 600140271Sbrooks/* 601140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 602140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 603140271Sbrooks * of the first. A warning is printed to stderr in the case that the 604140271Sbrooks * first string does not match the third. 605140271Sbrooks * 606140271Sbrooks * This function exists to warn about the bizzare construction 607140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 608140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 609140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 610140271Sbrooks * other string beginning with "by". 611140271Sbrooks * 612140271Sbrooks * This function will be removed in the future through the usual 613140271Sbrooks * deprecation process. 614140271Sbrooks */ 615140271Sbrooksstatic int 616140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 617140271Sbrooks{ 618140271Sbrooks 619140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 620140271Sbrooks return 1; 621140271Sbrooks 622140271Sbrooks if (strcmp(str1, str3) != 0) 623140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 624140271Sbrooks str1, str3); 625140271Sbrooks return 0; 626140271Sbrooks} 627140271Sbrooks 628140271Sbrooks/* 62998943Sluigi * prints one port, symbolic or numeric 63098943Sluigi */ 63198943Sluigistatic void 632117328Sluigiprint_port(int proto, uint16_t port) 63398943Sluigi{ 63498943Sluigi 63598943Sluigi if (proto == IPPROTO_ETHERTYPE) { 636117469Sluigi char const *s; 63798943Sluigi 63898943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 63998943Sluigi printf("%s", s); 64098943Sluigi else 64198943Sluigi printf("0x%04x", port); 64298943Sluigi } else { 64398943Sluigi struct servent *se = NULL; 64498943Sluigi if (do_resolv) { 64598943Sluigi struct protoent *pe = getprotobynumber(proto); 64698943Sluigi 64798943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 64898943Sluigi } 64998943Sluigi if (se) 65098943Sluigi printf("%s", se->s_name); 65198943Sluigi else 65298943Sluigi printf("%d", port); 65398943Sluigi } 65498943Sluigi} 65598943Sluigi 656117328Sluigistruct _s_x _port_name[] = { 657117328Sluigi {"dst-port", O_IP_DSTPORT}, 658117328Sluigi {"src-port", O_IP_SRCPORT}, 659117328Sluigi {"ipid", O_IPID}, 660117328Sluigi {"iplen", O_IPLEN}, 661117328Sluigi {"ipttl", O_IPTTL}, 662117328Sluigi {"mac-type", O_MAC_TYPE}, 663136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 664158879Soleg {"tagged", O_TAGGED}, 665117328Sluigi {NULL, 0} 666117328Sluigi}; 667117328Sluigi 66898943Sluigi/* 669117328Sluigi * Print the values in a list 16-bit items of the types above. 67098943Sluigi * XXX todo: add support for mask. 67198943Sluigi */ 67298943Sluigistatic void 673102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 67498943Sluigi{ 675117328Sluigi uint16_t *p = cmd->ports; 67698943Sluigi int i; 677117469Sluigi char const *sep; 67898943Sluigi 679116690Sluigi if (opcode != 0) { 680117328Sluigi sep = match_value(_port_name, opcode); 681117328Sluigi if (sep == NULL) 682116690Sluigi sep = "???"; 683116690Sluigi printf (" %s", sep); 684116690Sluigi } 685116690Sluigi sep = " "; 68698943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 68798943Sluigi printf(sep); 68898943Sluigi print_port(proto, p[0]); 68998943Sluigi if (p[0] != p[1]) { 69098943Sluigi printf("-"); 69198943Sluigi print_port(proto, p[1]); 69298943Sluigi } 69398943Sluigi sep = ","; 69498943Sluigi } 69598943Sluigi} 69698943Sluigi 69798943Sluigi/* 69898943Sluigi * Like strtol, but also translates service names into port numbers 69998943Sluigi * for some protocols. 70098943Sluigi * In particular: 70198943Sluigi * proto == -1 disables the protocol check; 70298943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 70398943Sluigi * proto == <some value in /etc/protocols> matches the values there. 704101628Sluigi * Returns *end == s in case the parameter is not found. 70598943Sluigi */ 70698943Sluigistatic int 70798943Sluigistrtoport(char *s, char **end, int base, int proto) 70898943Sluigi{ 709101628Sluigi char *p, *buf; 710101628Sluigi char *s1; 71198943Sluigi int i; 71298943Sluigi 713101628Sluigi *end = s; /* default - not found */ 714117577Sluigi if (*s == '\0') 715101628Sluigi return 0; /* not found */ 716106505Smaxim 71798943Sluigi if (isdigit(*s)) 71898943Sluigi return strtol(s, end, base); 71998943Sluigi 72098943Sluigi /* 721101628Sluigi * find separator. '\\' escapes the next char. 72298943Sluigi */ 723101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 724101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 725101628Sluigi s1++; 72698943Sluigi 727101628Sluigi buf = malloc(s1 - s + 1); 728101628Sluigi if (buf == NULL) 729101628Sluigi return 0; 730101628Sluigi 731101628Sluigi /* 732101628Sluigi * copy into a buffer skipping backslashes 733101628Sluigi */ 734101628Sluigi for (p = s, i = 0; p != s1 ; p++) 735117577Sluigi if (*p != '\\') 736101628Sluigi buf[i++] = *p; 737101628Sluigi buf[i++] = '\0'; 738101628Sluigi 73998943Sluigi if (proto == IPPROTO_ETHERTYPE) { 740101628Sluigi i = match_token(ether_types, buf); 741101628Sluigi free(buf); 742101628Sluigi if (i != -1) { /* found */ 74398943Sluigi *end = s1; 74498943Sluigi return i; 74598943Sluigi } 74698943Sluigi } else { 74798943Sluigi struct protoent *pe = NULL; 74898943Sluigi struct servent *se; 74998943Sluigi 75098943Sluigi if (proto != 0) 75198943Sluigi pe = getprotobynumber(proto); 75298943Sluigi setservent(1); 753101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 754101628Sluigi free(buf); 75598943Sluigi if (se != NULL) { 75698943Sluigi *end = s1; 75798943Sluigi return ntohs(se->s_port); 75898943Sluigi } 75998943Sluigi } 760101628Sluigi return 0; /* not found */ 76198943Sluigi} 76298943Sluigi 76398943Sluigi/* 764136071Sgreen * Map between current altq queue id numbers and names. 765136071Sgreen */ 766136071Sgreenstatic int altq_fetched = 0; 767136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 768136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 769136071Sgreen 770136071Sgreenstatic void 771136071Sgreenaltq_set_enabled(int enabled) 772136071Sgreen{ 773136071Sgreen int pffd; 774136071Sgreen 775136071Sgreen pffd = open("/dev/pf", O_RDWR); 776136071Sgreen if (pffd == -1) 777136071Sgreen err(EX_UNAVAILABLE, 778136071Sgreen "altq support opening pf(4) control device"); 779136071Sgreen if (enabled) { 780136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 781136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 782136071Sgreen } else { 783136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 784136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 785136071Sgreen } 786136071Sgreen close(pffd); 787136071Sgreen} 788136071Sgreen 789136071Sgreenstatic void 790136071Sgreenaltq_fetch() 791136071Sgreen{ 792136071Sgreen struct pfioc_altq pfioc; 793136071Sgreen struct pf_altq *altq; 794136071Sgreen int pffd, mnr; 795136071Sgreen 796136071Sgreen if (altq_fetched) 797136071Sgreen return; 798136071Sgreen altq_fetched = 1; 799136071Sgreen pffd = open("/dev/pf", O_RDONLY); 800136071Sgreen if (pffd == -1) { 801136071Sgreen warn("altq support opening pf(4) control device"); 802136071Sgreen return; 803136071Sgreen } 804136071Sgreen bzero(&pfioc, sizeof(pfioc)); 805136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 806136071Sgreen warn("altq support getting queue list"); 807136071Sgreen close(pffd); 808136071Sgreen return; 809136071Sgreen } 810136071Sgreen mnr = pfioc.nr; 811136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 812136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 813136071Sgreen if (errno == EBUSY) 814136071Sgreen break; 815136071Sgreen warn("altq support getting queue list"); 816136071Sgreen close(pffd); 817136071Sgreen return; 818136071Sgreen } 819136071Sgreen if (pfioc.altq.qid == 0) 820136071Sgreen continue; 821136071Sgreen altq = malloc(sizeof(*altq)); 822136071Sgreen if (altq == NULL) 823136071Sgreen err(EX_OSERR, "malloc"); 824136071Sgreen *altq = pfioc.altq; 825136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 826136071Sgreen } 827136071Sgreen close(pffd); 828136071Sgreen} 829136071Sgreen 830136071Sgreenstatic u_int32_t 831136071Sgreenaltq_name_to_qid(const char *name) 832136071Sgreen{ 833136071Sgreen struct pf_altq *altq; 834136071Sgreen 835136071Sgreen altq_fetch(); 836136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 837136071Sgreen if (strcmp(name, altq->qname) == 0) 838136071Sgreen break; 839136071Sgreen if (altq == NULL) 840136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 841136071Sgreen return altq->qid; 842136071Sgreen} 843136071Sgreen 844136071Sgreenstatic const char * 845136071Sgreenaltq_qid_to_name(u_int32_t qid) 846136071Sgreen{ 847136071Sgreen struct pf_altq *altq; 848136071Sgreen 849136071Sgreen altq_fetch(); 850136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 851136071Sgreen if (qid == altq->qid) 852136071Sgreen break; 853136071Sgreen if (altq == NULL) 854136071Sgreen return NULL; 855136071Sgreen return altq->qname; 856136071Sgreen} 857136071Sgreen 858136071Sgreenstatic void 859136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 860136071Sgreen{ 861136071Sgreen *qid = altq_name_to_qid(av); 862136071Sgreen} 863136071Sgreen 864136071Sgreen/* 865117328Sluigi * Fill the body of the command with the list of port ranges. 86698943Sluigi */ 86798943Sluigistatic int 86898943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 86998943Sluigi{ 870117328Sluigi uint16_t a, b, *p = cmd->ports; 87198943Sluigi int i = 0; 872102087Sluigi char *s = av; 87398943Sluigi 874102087Sluigi while (*s) { 87598943Sluigi a = strtoport(av, &s, 0, proto); 876159636Soleg if (s == av) /* empty or invalid argument */ 877159636Soleg return (0); 878159636Soleg 879159636Soleg switch (*s) { 880159636Soleg case '-': /* a range */ 881159636Soleg av = s + 1; 88298943Sluigi b = strtoport(av, &s, 0, proto); 883159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 884159636Soleg if (s == av || (*s != ',' && *s != '\0')) 885159636Soleg return (0); 88698943Sluigi p[0] = a; 88798943Sluigi p[1] = b; 888159636Soleg break; 889159636Soleg case ',': /* comma separated list */ 890159636Soleg case '\0': 89198943Sluigi p[0] = p[1] = a; 892159636Soleg break; 893159636Soleg default: 894159636Soleg warnx("port list: invalid separator <%c> in <%s>", 895101978Sluigi *s, av); 896159636Soleg return (0); 897159636Soleg } 898159636Soleg 899102087Sluigi i++; 900102087Sluigi p += 2; 901159636Soleg av = s + 1; 90298943Sluigi } 90398943Sluigi if (i > 0) { 904159636Soleg if (i + 1 > F_LEN_MASK) 905102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 906159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 90798943Sluigi } 908159636Soleg return (i); 90998943Sluigi} 91098943Sluigi 91198943Sluigistatic struct _s_x icmpcodes[] = { 91298943Sluigi { "net", ICMP_UNREACH_NET }, 91398943Sluigi { "host", ICMP_UNREACH_HOST }, 91498943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 91598943Sluigi { "port", ICMP_UNREACH_PORT }, 91698943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 91798943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 91898943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 91998943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 92098943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 92198943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 92298943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 92398943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 92498943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 92598943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 92698943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 92798943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 92898943Sluigi { NULL, 0 } 92998943Sluigi}; 93098943Sluigi 93198943Sluigistatic void 93298943Sluigifill_reject_code(u_short *codep, char *str) 93398943Sluigi{ 93498943Sluigi int val; 93598943Sluigi char *s; 93698943Sluigi 93798943Sluigi val = strtoul(str, &s, 0); 93898943Sluigi if (s == str || *s != '\0' || val >= 0x100) 93998943Sluigi val = match_token(icmpcodes, str); 940102087Sluigi if (val < 0) 94198943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 94298943Sluigi *codep = val; 94398943Sluigi return; 94498943Sluigi} 94598943Sluigi 94698943Sluigistatic void 947117328Sluigiprint_reject_code(uint16_t code) 94898943Sluigi{ 949117469Sluigi char const *s = match_value(icmpcodes, code); 95098943Sluigi 95198943Sluigi if (s != NULL) 95299475Sluigi printf("unreach %s", s); 95398943Sluigi else 95499475Sluigi printf("unreach %u", code); 95598943Sluigi} 95698943Sluigi 957149020Sbzstatic struct _s_x icmp6codes[] = { 958149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 959149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 960149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 961149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 962149020Sbz { NULL, 0 } 963149020Sbz}; 964149020Sbz 965149020Sbzstatic void 966149020Sbzfill_unreach6_code(u_short *codep, char *str) 967149020Sbz{ 968149020Sbz int val; 969149020Sbz char *s; 970149020Sbz 971149020Sbz val = strtoul(str, &s, 0); 972149020Sbz if (s == str || *s != '\0' || val >= 0x100) 973149020Sbz val = match_token(icmp6codes, str); 974149020Sbz if (val < 0) 975149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 976149020Sbz *codep = val; 977149020Sbz return; 978149020Sbz} 979149020Sbz 980149020Sbzstatic void 981149020Sbzprint_unreach6_code(uint16_t code) 982149020Sbz{ 983149020Sbz char const *s = match_value(icmp6codes, code); 984149020Sbz 985149020Sbz if (s != NULL) 986149020Sbz printf("unreach6 %s", s); 987149020Sbz else 988149020Sbz printf("unreach6 %u", code); 989149020Sbz} 990149020Sbz 99198943Sluigi/* 99298943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 99398943Sluigi * or -1 if the mask is not contiguous. 99498943Sluigi * XXX this needs a proper fix. 99598943Sluigi * This effectively works on masks in big-endian (network) format. 99698943Sluigi * when compiled on little endian architectures. 99798943Sluigi * 99898943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 99998943Sluigi * the first bit on the wire is bit 0 of the first byte. 100098943Sluigi * len is the max length in bits. 100198943Sluigi */ 100298943Sluigistatic int 1003117577Sluigicontigmask(uint8_t *p, int len) 100498943Sluigi{ 100598943Sluigi int i, n; 1006117577Sluigi 100798943Sluigi for (i=0; i<len ; i++) 100898943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 100998943Sluigi break; 101098943Sluigi for (n=i+1; n < len; n++) 101198943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 101298943Sluigi return -1; /* mask not contiguous */ 101398943Sluigi return i; 101498943Sluigi} 101598943Sluigi 101698943Sluigi/* 101798943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 101898943Sluigi * There is a specialized check for f_tcpflags. 101998943Sluigi */ 102098943Sluigistatic void 1021117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 102298943Sluigi{ 1023117469Sluigi char const *comma = ""; 102498943Sluigi int i; 1025117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1026117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 102798943Sluigi 102898943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 102998943Sluigi printf(" setup"); 103098943Sluigi return; 103198943Sluigi } 103298943Sluigi 103398943Sluigi printf(" %s ", name); 103498943Sluigi for (i=0; list[i].x != 0; i++) { 103598943Sluigi if (set & list[i].x) { 103698943Sluigi set &= ~list[i].x; 103798943Sluigi printf("%s%s", comma, list[i].s); 103898943Sluigi comma = ","; 103998943Sluigi } 104098943Sluigi if (clear & list[i].x) { 104198943Sluigi clear &= ~list[i].x; 104298943Sluigi printf("%s!%s", comma, list[i].s); 104398943Sluigi comma = ","; 104498943Sluigi } 104598943Sluigi } 104698943Sluigi} 104798943Sluigi 104898943Sluigi/* 104998943Sluigi * Print the ip address contained in a command. 105098943Sluigi */ 105198943Sluigistatic void 1052117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 105398943Sluigi{ 105498943Sluigi struct hostent *he = NULL; 1055117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1056117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 105798943Sluigi 1058102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 105998943Sluigi 106098943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 106198943Sluigi printf("me"); 106298943Sluigi return; 106398943Sluigi } 1064130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1065130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1066130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1067130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1068130281Sru printf(",%u", *a); 1069130281Sru printf(")"); 1070130281Sru return; 1071130281Sru } 107298943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1073117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1074116716Sluigi int i, j; 107598943Sluigi char comma = '{'; 107698943Sluigi 107798943Sluigi x = cmd->o.arg1 - 1; 107898943Sluigi x = htonl( ~x ); 107998943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 108098943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1081117577Sluigi contigmask((uint8_t *)&x, 32)); 108298943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 108398943Sluigi x &= 0xff; /* base */ 1084116716Sluigi /* 1085116716Sluigi * Print bits and ranges. 1086116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1087116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1088116716Sluigi * range, otherwise only print the initial bit and rescan. 1089116716Sluigi */ 109098943Sluigi for (i=0; i < cmd->o.arg1; i++) 1091117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1092116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1093117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1094116716Sluigi break; 109598943Sluigi printf("%c%d", comma, i+x); 1096116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1097116716Sluigi printf("-%d", j-1+x); 1098116716Sluigi i = j-1; 1099116716Sluigi } 110098943Sluigi comma = ','; 110198943Sluigi } 110298943Sluigi printf("}"); 110398943Sluigi return; 110498943Sluigi } 1105117328Sluigi /* 1106117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1107117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1108117328Sluigi * use that to count the number of entries. 1109117328Sluigi */ 1110117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1111117328Sluigi int mb = /* mask length */ 1112117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1113117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 111498943Sluigi if (mb == 32 && do_resolv) 1115117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 111698943Sluigi if (he != NULL) /* resolved to name */ 111798943Sluigi printf("%s", he->h_name); 111898943Sluigi else if (mb == 0) /* any */ 111998943Sluigi printf("any"); 112098943Sluigi else { /* numeric IP followed by some kind of mask */ 1121117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 112298943Sluigi if (mb < 0) 1123117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 112498943Sluigi else if (mb < 32) 112598943Sluigi printf("/%d", mb); 112698943Sluigi } 1127117328Sluigi if (len > 1) 1128117328Sluigi printf(","); 1129117328Sluigi } 113098943Sluigi} 113198943Sluigi 113298943Sluigi/* 113398943Sluigi * prints a MAC address/mask pair 113498943Sluigi */ 113598943Sluigistatic void 1136117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 113798943Sluigi{ 113898943Sluigi int l = contigmask(mask, 48); 113998943Sluigi 114098943Sluigi if (l == 0) 114198943Sluigi printf(" any"); 114298943Sluigi else { 114398943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 114498943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 114598943Sluigi if (l == -1) 114698943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 114798943Sluigi mask[0], mask[1], mask[2], 114898943Sluigi mask[3], mask[4], mask[5]); 114998943Sluigi else if (l < 48) 115098943Sluigi printf("/%d", l); 115198943Sluigi } 115298943Sluigi} 115398943Sluigi 115499475Sluigistatic void 115599475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 115699475Sluigi{ 1157117328Sluigi uint8_t type; 115898943Sluigi 115999475Sluigi cmd->d[0] = 0; 116099475Sluigi while (*av) { 116199475Sluigi if (*av == ',') 116299475Sluigi av++; 116399475Sluigi 116499475Sluigi type = strtoul(av, &av, 0); 116599475Sluigi 116699475Sluigi if (*av != ',' && *av != '\0') 116799475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 116899475Sluigi 116999475Sluigi if (type > 31) 117099475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 117199475Sluigi 117299475Sluigi cmd->d[0] |= 1 << type; 117399475Sluigi } 117499475Sluigi cmd->o.opcode = O_ICMPTYPE; 117599475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 117699475Sluigi} 117799475Sluigi 117899475Sluigistatic void 117999475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 118099475Sluigi{ 118199475Sluigi int i; 118299475Sluigi char sep= ' '; 118399475Sluigi 118499475Sluigi printf(" icmptypes"); 118599475Sluigi for (i = 0; i < 32; i++) { 118699475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 118799475Sluigi continue; 118899475Sluigi printf("%c%d", sep, i); 118999475Sluigi sep = ','; 119099475Sluigi } 119199475Sluigi} 119299475Sluigi 1193145246Sbrooks/* 1194145246Sbrooks * Print the ip address contained in a command. 1195145246Sbrooks */ 1196145246Sbrooksstatic void 1197145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1198145246Sbrooks{ 1199145246Sbrooks struct hostent *he = NULL; 1200145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1201145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1202145246Sbrooks char trad[255]; 1203145246Sbrooks 1204145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1205145246Sbrooks 1206145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1207145246Sbrooks printf("me6"); 1208145246Sbrooks return; 1209145246Sbrooks } 1210145246Sbrooks if (cmd->o.opcode == O_IP6) { 1211152923Sume printf(" ip6"); 1212145246Sbrooks return; 1213145246Sbrooks } 1214145246Sbrooks 1215145246Sbrooks /* 1216145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1217145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1218145246Sbrooks * use that to count the number of entries. 1219145246Sbrooks */ 1220145246Sbrooks 1221145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1222145246Sbrooks int mb = /* mask length */ 1223145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1224145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1225145246Sbrooks 1226145246Sbrooks if (mb == 128 && do_resolv) 1227145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1228145246Sbrooks if (he != NULL) /* resolved to name */ 1229145246Sbrooks printf("%s", he->h_name); 1230145246Sbrooks else if (mb == 0) /* any */ 1231145246Sbrooks printf("any"); 1232145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1233145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1234145246Sbrooks printf("Error ntop in print_ip6\n"); 1235145246Sbrooks printf("%s", trad ); 1236145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1237145246Sbrooks printf(":%s", 1238145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1239145246Sbrooks else if (mb < 128) 1240145246Sbrooks printf("/%d", mb); 1241145246Sbrooks } 1242145246Sbrooks if (len > 2) 1243145246Sbrooks printf(","); 1244145246Sbrooks } 1245145246Sbrooks} 1246145246Sbrooks 1247145246Sbrooksstatic void 1248145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1249145246Sbrooks{ 1250145246Sbrooks uint8_t type; 1251145246Sbrooks 1252162344Sjhay bzero(cmd, sizeof(*cmd)); 1253145246Sbrooks while (*av) { 1254145246Sbrooks if (*av == ',') 1255145246Sbrooks av++; 1256145246Sbrooks type = strtoul(av, &av, 0); 1257145246Sbrooks if (*av != ',' && *av != '\0') 1258145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1259145246Sbrooks /* 1260145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1261145246Sbrooks * we shouldn't be able to filter all possiable values 1262145246Sbrooks * regardless of the ability of the rest of the kernel to do 1263145246Sbrooks * anything useful with them. 1264145246Sbrooks */ 1265145246Sbrooks if (type > ICMP6_MAXTYPE) 1266145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1267145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1268145246Sbrooks } 1269145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1270145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1271145246Sbrooks} 1272145246Sbrooks 1273145246Sbrooks 1274145246Sbrooksstatic void 1275145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1276145246Sbrooks{ 1277145246Sbrooks int i, j; 1278145246Sbrooks char sep= ' '; 1279145246Sbrooks 1280152923Sume printf(" ip6 icmp6types"); 1281145246Sbrooks for (i = 0; i < 7; i++) 1282145246Sbrooks for (j=0; j < 32; ++j) { 1283145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1284145246Sbrooks continue; 1285145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1286145246Sbrooks sep = ','; 1287145246Sbrooks } 1288145246Sbrooks} 1289145246Sbrooks 1290145246Sbrooksstatic void 1291145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1292145246Sbrooks{ 1293145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1294145246Sbrooks char sep = ','; 1295145246Sbrooks 1296145246Sbrooks printf(" flow-id "); 1297145246Sbrooks for( i=0; i < limit; ++i) { 1298145246Sbrooks if (i == limit - 1) 1299145246Sbrooks sep = ' '; 1300145246Sbrooks printf("%d%c", cmd->d[i], sep); 1301145246Sbrooks } 1302145246Sbrooks} 1303145246Sbrooks 1304145246Sbrooks/* structure and define for the extension header in ipv6 */ 1305145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1306145246Sbrooks { "frag", EXT_FRAGMENT }, 1307145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1308145246Sbrooks { "route", EXT_ROUTING }, 1309149020Sbz { "dstopt", EXT_DSTOPTS }, 1310145246Sbrooks { "ah", EXT_AH }, 1311145246Sbrooks { "esp", EXT_ESP }, 1312169245Sbz { "rthdr0", EXT_RTHDR0 }, 1313169245Sbz { "rthdr2", EXT_RTHDR2 }, 1314145246Sbrooks { NULL, 0 } 1315145246Sbrooks}; 1316145246Sbrooks 1317145246Sbrooks/* fills command for the extension header filtering */ 1318145246Sbrooksint 1319145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1320145246Sbrooks{ 1321145246Sbrooks int tok; 1322145246Sbrooks char *s = av; 1323145246Sbrooks 1324145246Sbrooks cmd->arg1 = 0; 1325145246Sbrooks 1326145246Sbrooks while(s) { 1327145246Sbrooks av = strsep( &s, ",") ; 1328145246Sbrooks tok = match_token(ext6hdrcodes, av); 1329145246Sbrooks switch (tok) { 1330145246Sbrooks case EXT_FRAGMENT: 1331145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1332145246Sbrooks break; 1333145246Sbrooks 1334145246Sbrooks case EXT_HOPOPTS: 1335145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1336145246Sbrooks break; 1337145246Sbrooks 1338145246Sbrooks case EXT_ROUTING: 1339145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1340145246Sbrooks break; 1341145246Sbrooks 1342149020Sbz case EXT_DSTOPTS: 1343149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1344149020Sbz break; 1345149020Sbz 1346145246Sbrooks case EXT_AH: 1347145246Sbrooks cmd->arg1 |= EXT_AH; 1348145246Sbrooks break; 1349145246Sbrooks 1350145246Sbrooks case EXT_ESP: 1351145246Sbrooks cmd->arg1 |= EXT_ESP; 1352145246Sbrooks break; 1353145246Sbrooks 1354169245Sbz case EXT_RTHDR0: 1355169245Sbz cmd->arg1 |= EXT_RTHDR0; 1356169245Sbz break; 1357169245Sbz 1358169245Sbz case EXT_RTHDR2: 1359169245Sbz cmd->arg1 |= EXT_RTHDR2; 1360169245Sbz break; 1361169245Sbz 1362145246Sbrooks default: 1363145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1364145246Sbrooks break; 1365145246Sbrooks } 1366145246Sbrooks } 1367145246Sbrooks if (cmd->arg1 == 0 ) 1368145246Sbrooks return 0; 1369145246Sbrooks cmd->opcode = O_EXT_HDR; 1370145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1371145246Sbrooks return 1; 1372145246Sbrooks} 1373145246Sbrooks 1374145246Sbrooksvoid 1375145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1376145246Sbrooks{ 1377145246Sbrooks char sep = ' '; 1378145246Sbrooks 1379145246Sbrooks printf(" extension header:"); 1380145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1381145246Sbrooks printf("%cfragmentation", sep); 1382145246Sbrooks sep = ','; 1383145246Sbrooks } 1384145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1385145246Sbrooks printf("%chop options", sep); 1386145246Sbrooks sep = ','; 1387145246Sbrooks } 1388145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1389145246Sbrooks printf("%crouting options", sep); 1390145246Sbrooks sep = ','; 1391145246Sbrooks } 1392169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1393169245Sbz printf("%crthdr0", sep); 1394169245Sbz sep = ','; 1395169245Sbz } 1396169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1397169245Sbz printf("%crthdr2", sep); 1398169245Sbz sep = ','; 1399169245Sbz } 1400149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1401149020Sbz printf("%cdestination options", sep); 1402149020Sbz sep = ','; 1403149020Sbz } 1404145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1405145246Sbrooks printf("%cauthentication header", sep); 1406145246Sbrooks sep = ','; 1407145246Sbrooks } 1408145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1409145246Sbrooks printf("%cencapsulated security payload", sep); 1410145246Sbrooks } 1411145246Sbrooks} 1412145246Sbrooks 141398943Sluigi/* 141498943Sluigi * show_ipfw() prints the body of an ipfw rule. 141598943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 141698943Sluigi * a helper function to produce these entries if not provided explicitly. 1417102087Sluigi * The first argument is the list of fields we have, the second is 1418102087Sluigi * the list of fields we want to be printed. 1419101978Sluigi * 1420102087Sluigi * Special cases if we have provided a MAC header: 1421102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1422102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1423102087Sluigi * 1424102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 142598943Sluigi */ 1426101978Sluigi#define HAVE_PROTO 0x0001 1427101978Sluigi#define HAVE_SRCIP 0x0002 1428101978Sluigi#define HAVE_DSTIP 0x0004 1429169139Smaxim#define HAVE_PROTO4 0x0008 1430169139Smaxim#define HAVE_PROTO6 0x0010 1431102087Sluigi#define HAVE_OPTIONS 0x8000 143298943Sluigi 1433101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 143498943Sluigistatic void 1435102087Sluigishow_prerequisites(int *flags, int want, int cmd) 143698943Sluigi{ 1437123495Sluigi if (comment_only) 1438123495Sluigi return; 1439102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1440102087Sluigi *flags |= HAVE_OPTIONS; 1441102087Sluigi 1442102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1443102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1444146894Smlaier if ( (*flags & HAVE_PROTO4)) 1445146894Smlaier printf(" ip4"); 1446146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1447146894Smlaier printf(" ip6"); 1448146894Smlaier else 1449146894Smlaier printf(" ip"); 1450146894Smlaier 1451102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1452102087Sluigi printf(" from any"); 1453102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1454102087Sluigi printf(" to any"); 1455102087Sluigi } 145698943Sluigi *flags |= want; 145798943Sluigi} 145898943Sluigi 145998943Sluigistatic void 1460112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 146198943Sluigi{ 1462107291Skeramida static int twidth = 0; 146398943Sluigi int l; 1464158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1465117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 146698943Sluigi int proto = 0; /* default */ 146798943Sluigi int flags = 0; /* prerequisites */ 146898943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1469136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 147098943Sluigi int or_block = 0; /* we are in an or block */ 1471117328Sluigi uint32_t set_disable; 147298943Sluigi 1473115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1474101628Sluigi 1475101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1476101628Sluigi if (!show_sets) 1477101628Sluigi return; 1478101628Sluigi else 1479101628Sluigi printf("# DISABLED "); 1480101628Sluigi } 148198943Sluigi printf("%05u ", rule->rulenum); 148298943Sluigi 1483117469Sluigi if (pcwidth>0 || bcwidth>0) 1484115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1485115793Sticso bcwidth, align_uint64(&rule->bcnt)); 148698943Sluigi 1487117472Sluigi if (do_time == 2) 1488117472Sluigi printf("%10u ", rule->timestamp); 1489117472Sluigi else if (do_time == 1) { 1490107291Skeramida char timestr[30]; 1491107291Skeramida time_t t = (time_t)0; 1492107291Skeramida 1493107291Skeramida if (twidth == 0) { 1494107291Skeramida strcpy(timestr, ctime(&t)); 1495107291Skeramida *strchr(timestr, '\n') = '\0'; 1496107291Skeramida twidth = strlen(timestr); 1497107291Skeramida } 149898943Sluigi if (rule->timestamp) { 1499107291Skeramida t = _long_to_time(rule->timestamp); 150098943Sluigi 150198943Sluigi strcpy(timestr, ctime(&t)); 150298943Sluigi *strchr(timestr, '\n') = '\0'; 150398943Sluigi printf("%s ", timestr); 150498943Sluigi } else { 1505107291Skeramida printf("%*s", twidth, " "); 150698943Sluigi } 150798943Sluigi } 150898943Sluigi 1509101628Sluigi if (show_sets) 1510101628Sluigi printf("set %d ", rule->set); 1511101628Sluigi 151298943Sluigi /* 1513107289Sluigi * print the optional "match probability" 1514107289Sluigi */ 1515107289Sluigi if (rule->cmd_len > 0) { 1516107289Sluigi cmd = rule->cmd ; 1517107289Sluigi if (cmd->opcode == O_PROB) { 1518107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1519107289Sluigi double d = 1.0 * p->d[0]; 1520107289Sluigi 1521107289Sluigi d = (d / 0x7fffffff); 1522107289Sluigi printf("prob %f ", d); 1523107289Sluigi } 1524107289Sluigi } 1525107289Sluigi 1526107289Sluigi /* 152798943Sluigi * first print actions 152898943Sluigi */ 152998943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 153098943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 153198943Sluigi switch(cmd->opcode) { 153298943Sluigi case O_CHECK_STATE: 153398943Sluigi printf("check-state"); 1534102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 153598943Sluigi break; 153698943Sluigi 153798943Sluigi case O_ACCEPT: 153898943Sluigi printf("allow"); 153998943Sluigi break; 154098943Sluigi 154198943Sluigi case O_COUNT: 154298943Sluigi printf("count"); 154398943Sluigi break; 154498943Sluigi 154598943Sluigi case O_DENY: 154698943Sluigi printf("deny"); 154798943Sluigi break; 154898943Sluigi 154999475Sluigi case O_REJECT: 155099475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 155199475Sluigi printf("reset"); 155299475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 155399475Sluigi printf("reject"); 155499475Sluigi else 155599475Sluigi print_reject_code(cmd->arg1); 155699475Sluigi break; 155799475Sluigi 1558149020Sbz case O_UNREACH6: 1559149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1560149020Sbz printf("reset6"); 1561149020Sbz else 1562149020Sbz print_unreach6_code(cmd->arg1); 1563149020Sbz break; 1564149020Sbz 1565159636Soleg case O_SKIPTO: 1566159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 156798943Sluigi break; 156898943Sluigi 156998943Sluigi case O_PIPE: 1570159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1571159636Soleg break; 1572159636Soleg 157398943Sluigi case O_QUEUE: 1574159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1575159636Soleg break; 1576159636Soleg 157798943Sluigi case O_DIVERT: 1578159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1579159636Soleg break; 1580159636Soleg 158198943Sluigi case O_TEE: 1582159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1583159636Soleg break; 1584159636Soleg 1585141351Sglebius case O_NETGRAPH: 1586159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1587159636Soleg break; 1588159636Soleg 1589141351Sglebius case O_NGTEE: 1590159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1591159636Soleg break; 1592141351Sglebius 159398943Sluigi case O_FORWARD_IP: 159498943Sluigi { 159598943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 159698943Sluigi 1597161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1598161424Sjulian printf("fwd tablearg"); 1599161424Sjulian } else { 1600161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1601161424Sjulian } 160298943Sluigi if (s->sa.sin_port) 1603103241Sluigi printf(",%d", s->sa.sin_port); 160498943Sluigi } 160598943Sluigi break; 160698943Sluigi 160798943Sluigi case O_LOG: /* O_LOG is printed last */ 160898943Sluigi logptr = (ipfw_insn_log *)cmd; 160998943Sluigi break; 161098943Sluigi 1611136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1612136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1613136071Sgreen break; 1614136071Sgreen 1615158879Soleg case O_TAG: 1616158879Soleg tagptr = cmd; 1617158879Soleg break; 1618158879Soleg 1619165648Spiso case O_NAT: 1620176517Spiso PRINT_UINT_ARG("nat ", cmd->arg1); 1621165648Spiso break; 1622165648Spiso 1623178888Sjulian case O_SETFIB: 1624178888Sjulian PRINT_UINT_ARG("setfib ", cmd->arg1); 1625178888Sjulian break; 1626178888Sjulian 162798943Sluigi default: 1628136071Sgreen printf("** unrecognized action %d len %d ", 162998943Sluigi cmd->opcode, cmd->len); 163098943Sluigi } 163198943Sluigi } 163298943Sluigi if (logptr) { 163398943Sluigi if (logptr->max_log > 0) 163499909Sluigi printf(" log logamount %d", logptr->max_log); 163598943Sluigi else 163699909Sluigi printf(" log"); 163798943Sluigi } 1638136071Sgreen if (altqptr) { 1639136071Sgreen const char *qname; 1640102087Sluigi 1641136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1642136071Sgreen if (qname == NULL) 1643136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1644136071Sgreen else 1645136071Sgreen printf(" altq %s", qname); 1646136071Sgreen } 1647158879Soleg if (tagptr) { 1648158879Soleg if (tagptr->len & F_NOT) 1649159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1650158879Soleg else 1651159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1652158879Soleg } 1653136071Sgreen 165498943Sluigi /* 1655102087Sluigi * then print the body. 165698943Sluigi */ 1657146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1658146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1659146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1660146894Smlaier continue; 1661146894Smlaier if (cmd->opcode == O_IP4) { 1662146894Smlaier flags |= HAVE_PROTO4; 1663146894Smlaier break; 1664146894Smlaier } else if (cmd->opcode == O_IP6) { 1665146894Smlaier flags |= HAVE_PROTO6; 1666146894Smlaier break; 1667146894Smlaier } 1668146894Smlaier } 1669102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1670146894Smlaier if (!do_compact) { 1671146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1672146894Smlaier printf(" from any to any"); 1673146894Smlaier } 1674102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1675102087Sluigi } 1676102087Sluigi 1677123495Sluigi if (comment_only) 1678123495Sluigi comment = "..."; 1679123495Sluigi 168098943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 168198943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 168299475Sluigi /* useful alias */ 168399475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 168498943Sluigi 1685123495Sluigi if (comment_only) { 1686123495Sluigi if (cmd->opcode != O_NOP) 1687123495Sluigi continue; 1688123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1689123495Sluigi return; 1690123495Sluigi } 1691123495Sluigi 1692102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1693102087Sluigi 169498943Sluigi switch(cmd->opcode) { 1695117577Sluigi case O_PROB: 1696107289Sluigi break; /* done already */ 1697107289Sluigi 169898943Sluigi case O_PROBE_STATE: 169998943Sluigi break; /* no need to print anything here */ 170098943Sluigi 170198943Sluigi case O_IP_SRC: 1702130281Sru case O_IP_SRC_LOOKUP: 170398943Sluigi case O_IP_SRC_MASK: 170498943Sluigi case O_IP_SRC_ME: 170598943Sluigi case O_IP_SRC_SET: 1706102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 170798943Sluigi if (!(flags & HAVE_SRCIP)) 170898943Sluigi printf(" from"); 170998943Sluigi if ((cmd->len & F_OR) && !or_block) 171098943Sluigi printf(" {"); 1711102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1712102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 171398943Sluigi flags |= HAVE_SRCIP; 171498943Sluigi break; 171598943Sluigi 171698943Sluigi case O_IP_DST: 1717130281Sru case O_IP_DST_LOOKUP: 171898943Sluigi case O_IP_DST_MASK: 171998943Sluigi case O_IP_DST_ME: 172098943Sluigi case O_IP_DST_SET: 1721102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 172298943Sluigi if (!(flags & HAVE_DSTIP)) 172398943Sluigi printf(" to"); 172498943Sluigi if ((cmd->len & F_OR) && !or_block) 172598943Sluigi printf(" {"); 1726102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1727102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 172898943Sluigi flags |= HAVE_DSTIP; 172998943Sluigi break; 173098943Sluigi 1731145246Sbrooks case O_IP6_SRC: 1732145246Sbrooks case O_IP6_SRC_MASK: 1733145246Sbrooks case O_IP6_SRC_ME: 1734147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1735145246Sbrooks if (!(flags & HAVE_SRCIP)) 1736145246Sbrooks printf(" from"); 1737145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1738145246Sbrooks printf(" {"); 1739145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1740145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1741145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1742145246Sbrooks break; 1743145246Sbrooks 1744145246Sbrooks case O_IP6_DST: 1745145246Sbrooks case O_IP6_DST_MASK: 1746145246Sbrooks case O_IP6_DST_ME: 1747145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1748145246Sbrooks if (!(flags & HAVE_DSTIP)) 1749145246Sbrooks printf(" to"); 1750145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1751145246Sbrooks printf(" {"); 1752145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1753145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1754145246Sbrooks flags |= HAVE_DSTIP; 1755145246Sbrooks break; 1756145246Sbrooks 1757145246Sbrooks case O_FLOW6ID: 1758145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1759145246Sbrooks flags |= HAVE_OPTIONS; 1760145246Sbrooks break; 1761145246Sbrooks 176298943Sluigi case O_IP_DSTPORT: 1763102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 176498943Sluigi case O_IP_SRCPORT: 1765102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1766101641Sluigi if ((cmd->len & F_OR) && !or_block) 1767101641Sluigi printf(" {"); 1768172306Smaxim if (cmd->len & F_NOT) 1769172306Smaxim printf(" not"); 1770102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1771102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 177298943Sluigi break; 177398943Sluigi 177498943Sluigi case O_PROTO: { 1775145246Sbrooks struct protoent *pe = NULL; 177698943Sluigi 177798943Sluigi if ((cmd->len & F_OR) && !or_block) 177898943Sluigi printf(" {"); 177998943Sluigi if (cmd->len & F_NOT) 178098943Sluigi printf(" not"); 178198943Sluigi proto = cmd->arg1; 1782145567Sbrooks pe = getprotobynumber(cmd->arg1); 1783146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1784146894Smlaier !(flags & HAVE_PROTO)) 1785146894Smlaier show_prerequisites(&flags, 1786146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1787102087Sluigi if (flags & HAVE_OPTIONS) 1788102087Sluigi printf(" proto"); 178998943Sluigi if (pe) 179098943Sluigi printf(" %s", pe->p_name); 179198943Sluigi else 179298943Sluigi printf(" %u", cmd->arg1); 179398943Sluigi } 179498943Sluigi flags |= HAVE_PROTO; 179598943Sluigi break; 1796106505Smaxim 179798943Sluigi default: /*options ... */ 1798146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1799146894Smlaier if (((cmd->opcode == O_IP6) && 1800146894Smlaier (flags & HAVE_PROTO6)) || 1801146894Smlaier ((cmd->opcode == O_IP4) && 1802146894Smlaier (flags & HAVE_PROTO4))) 1803146894Smlaier break; 1804102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 180598943Sluigi if ((cmd->len & F_OR) && !or_block) 180698943Sluigi printf(" {"); 180798943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 180898943Sluigi printf(" not"); 180998943Sluigi switch(cmd->opcode) { 1810169139Smaxim case O_MACADDR2: { 1811169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1812169139Smaxim 1813169139Smaxim printf(" MAC"); 1814169139Smaxim print_mac(m->addr, m->mask); 1815169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1816169139Smaxim } 1817169139Smaxim break; 1818169139Smaxim 1819169139Smaxim case O_MAC_TYPE: 1820169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1821169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1822169139Smaxim break; 1823169139Smaxim 1824169139Smaxim 182598943Sluigi case O_FRAG: 182698943Sluigi printf(" frag"); 182798943Sluigi break; 182898943Sluigi 1829178888Sjulian case O_FIB: 1830178888Sjulian printf(" fib %u", cmd->arg1 ); 1831178888Sjulian break; 1832178888Sjulian 183398943Sluigi case O_IN: 183498943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 183598943Sluigi break; 183698943Sluigi 1837136073Sgreen case O_DIVERTED: 1838136073Sgreen switch (cmd->arg1) { 1839136073Sgreen case 3: 1840136073Sgreen printf(" diverted"); 1841136073Sgreen break; 1842136073Sgreen case 1: 1843136073Sgreen printf(" diverted-loopback"); 1844136073Sgreen break; 1845136073Sgreen case 2: 1846136073Sgreen printf(" diverted-output"); 1847136073Sgreen break; 1848136073Sgreen default: 1849136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1850136073Sgreen break; 1851136073Sgreen } 1852136073Sgreen break; 1853136073Sgreen 185498943Sluigi case O_LAYER2: 185598943Sluigi printf(" layer2"); 185698943Sluigi break; 185798943Sluigi case O_XMIT: 185898943Sluigi case O_RECV: 1859140423Sglebius case O_VIA: 1860140423Sglebius { 1861117469Sluigi char const *s; 186298943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 186398943Sluigi 186498943Sluigi if (cmd->opcode == O_XMIT) 186598943Sluigi s = "xmit"; 186698943Sluigi else if (cmd->opcode == O_RECV) 186798943Sluigi s = "recv"; 1868117469Sluigi else /* if (cmd->opcode == O_VIA) */ 186998943Sluigi s = "via"; 187098943Sluigi if (cmdif->name[0] == '\0') 187199475Sluigi printf(" %s %s", s, 187299475Sluigi inet_ntoa(cmdif->p.ip)); 1873140423Sglebius else 1874140423Sglebius printf(" %s %s", s, cmdif->name); 1875140423Sglebius 187698943Sluigi break; 1877140423Sglebius } 187898943Sluigi case O_IPID: 1879116690Sluigi if (F_LEN(cmd) == 1) 1880116690Sluigi printf(" ipid %u", cmd->arg1 ); 1881116690Sluigi else 1882116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1883116690Sluigi O_IPID); 188498943Sluigi break; 188598943Sluigi 188698943Sluigi case O_IPTTL: 1887116690Sluigi if (F_LEN(cmd) == 1) 1888116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1889116690Sluigi else 1890116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1891116690Sluigi O_IPTTL); 189298943Sluigi break; 189398943Sluigi 189498943Sluigi case O_IPVER: 189598943Sluigi printf(" ipver %u", cmd->arg1 ); 189698943Sluigi break; 189798943Sluigi 189899475Sluigi case O_IPPRECEDENCE: 189999475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 190099475Sluigi break; 190199475Sluigi 190298943Sluigi case O_IPLEN: 1903116690Sluigi if (F_LEN(cmd) == 1) 1904116690Sluigi printf(" iplen %u", cmd->arg1 ); 1905116690Sluigi else 1906116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1907116690Sluigi O_IPLEN); 190898943Sluigi break; 190998943Sluigi 1910101116Sluigi case O_IPOPT: 191198943Sluigi print_flags("ipoptions", cmd, f_ipopts); 191298943Sluigi break; 191398943Sluigi 191499475Sluigi case O_IPTOS: 191599475Sluigi print_flags("iptos", cmd, f_iptos); 191699475Sluigi break; 191799475Sluigi 191899475Sluigi case O_ICMPTYPE: 191999475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 192099475Sluigi break; 192199475Sluigi 192298943Sluigi case O_ESTAB: 192398943Sluigi printf(" established"); 192498943Sluigi break; 192598943Sluigi 1926136075Sgreen case O_TCPDATALEN: 1927136075Sgreen if (F_LEN(cmd) == 1) 1928136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1929136075Sgreen else 1930136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1931136075Sgreen O_TCPDATALEN); 1932136075Sgreen break; 1933136075Sgreen 193498943Sluigi case O_TCPFLAGS: 193598943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 193698943Sluigi break; 193798943Sluigi 193898943Sluigi case O_TCPOPTS: 193998943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 194098943Sluigi break; 194198943Sluigi 194298943Sluigi case O_TCPWIN: 194398943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 194498943Sluigi break; 194598943Sluigi 194698943Sluigi case O_TCPACK: 194798943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 194898943Sluigi break; 194998943Sluigi 195098943Sluigi case O_TCPSEQ: 195198943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 195298943Sluigi break; 195398943Sluigi 195498943Sluigi case O_UID: 195598943Sluigi { 195698943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 195798943Sluigi 195898943Sluigi if (pwd) 195998943Sluigi printf(" uid %s", pwd->pw_name); 196098943Sluigi else 196198943Sluigi printf(" uid %u", cmd32->d[0]); 196298943Sluigi } 196398943Sluigi break; 196498943Sluigi 196598943Sluigi case O_GID: 196698943Sluigi { 196798943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 196898943Sluigi 196998943Sluigi if (grp) 197098943Sluigi printf(" gid %s", grp->gr_name); 197198943Sluigi else 197298943Sluigi printf(" gid %u", cmd32->d[0]); 197398943Sluigi } 197498943Sluigi break; 197598943Sluigi 1976133600Scsjp case O_JAIL: 1977133600Scsjp printf(" jail %d", cmd32->d[0]); 1978133600Scsjp break; 1979133600Scsjp 1980112250Scjc case O_VERREVPATH: 1981112250Scjc printf(" verrevpath"); 1982112250Scjc break; 1983116919Sluigi 1984128575Sandre case O_VERSRCREACH: 1985128575Sandre printf(" versrcreach"); 1986128575Sandre break; 1987128575Sandre 1988133387Sandre case O_ANTISPOOF: 1989133387Sandre printf(" antispoof"); 1990133387Sandre break; 1991133387Sandre 1992117241Sluigi case O_IPSEC: 1993117241Sluigi printf(" ipsec"); 1994117241Sluigi break; 1995117241Sluigi 1996117469Sluigi case O_NOP: 1997117626Sluigi comment = (char *)(cmd + 1); 1998117469Sluigi break; 1999117469Sluigi 200098943Sluigi case O_KEEP_STATE: 200198943Sluigi printf(" keep-state"); 200298943Sluigi break; 200398943Sluigi 2004159636Soleg case O_LIMIT: { 200598943Sluigi struct _s_x *p = limit_masks; 200698943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 2007117328Sluigi uint8_t x = c->limit_mask; 2008117469Sluigi char const *comma = " "; 200998943Sluigi 201098943Sluigi printf(" limit"); 2011117577Sluigi for (; p->x != 0 ; p++) 201299909Sluigi if ((x & p->x) == p->x) { 201398943Sluigi x &= ~p->x; 201498943Sluigi printf("%s%s", comma, p->s); 201598943Sluigi comma = ","; 201698943Sluigi } 2017159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 201898943Sluigi break; 2019159636Soleg } 202098943Sluigi 2021146894Smlaier case O_IP6: 2022152923Sume printf(" ip6"); 2023145246Sbrooks break; 2024145246Sbrooks 2025146894Smlaier case O_IP4: 2026152923Sume printf(" ip4"); 2027146894Smlaier break; 2028146894Smlaier 2029145246Sbrooks case O_ICMP6TYPE: 2030145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2031145246Sbrooks break; 2032145246Sbrooks 2033145246Sbrooks case O_EXT_HDR: 2034145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2035145246Sbrooks break; 2036145246Sbrooks 2037158879Soleg case O_TAGGED: 2038158879Soleg if (F_LEN(cmd) == 1) 2039159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2040158879Soleg else 2041159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2042159636Soleg O_TAGGED); 2043158879Soleg break; 2044158879Soleg 204598943Sluigi default: 204698943Sluigi printf(" [opcode %d len %d]", 204798943Sluigi cmd->opcode, cmd->len); 204898943Sluigi } 204998943Sluigi } 205098943Sluigi if (cmd->len & F_OR) { 205198943Sluigi printf(" or"); 205298943Sluigi or_block = 1; 205398943Sluigi } else if (or_block) { 205498943Sluigi printf(" }"); 205598943Sluigi or_block = 0; 205698943Sluigi } 205798943Sluigi } 2058102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2059117626Sluigi if (comment) 2060117626Sluigi printf(" // %s", comment); 206198943Sluigi printf("\n"); 206298943Sluigi} 206398943Sluigi 206498943Sluigistatic void 2065112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 206698943Sluigi{ 206798943Sluigi struct protoent *pe; 206898943Sluigi struct in_addr a; 2069115793Sticso uint16_t rulenum; 2070159160Smlaier char buf[INET6_ADDRSTRLEN]; 207198943Sluigi 207298943Sluigi if (!do_expired) { 207398943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 207498943Sluigi return; 207598943Sluigi } 2076115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2077117328Sluigi printf("%05d", rulenum); 2078117469Sluigi if (pcwidth>0 || bcwidth>0) 2079117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2080117328Sluigi align_uint64(&d->pcnt), bcwidth, 2081117328Sluigi align_uint64(&d->bcnt), d->expire); 208298943Sluigi switch (d->dyn_type) { 208398943Sluigi case O_LIMIT_PARENT: 208498943Sluigi printf(" PARENT %d", d->count); 208598943Sluigi break; 208698943Sluigi case O_LIMIT: 208798943Sluigi printf(" LIMIT"); 208898943Sluigi break; 208998943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2090106505Smaxim printf(" STATE"); 209198943Sluigi break; 209298943Sluigi } 209398943Sluigi 209498943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 209598943Sluigi printf(" %s", pe->p_name); 209698943Sluigi else 209798943Sluigi printf(" proto %u", d->id.proto); 209898943Sluigi 2099159160Smlaier if (d->id.addr_type == 4) { 2100159160Smlaier a.s_addr = htonl(d->id.src_ip); 2101159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 210298943Sluigi 2103159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2104159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2105159160Smlaier } else if (d->id.addr_type == 6) { 2106159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2107159160Smlaier sizeof(buf)), d->id.src_port); 2108159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2109159160Smlaier sizeof(buf)), d->id.dst_port); 2110159160Smlaier } else 2111159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2112159160Smlaier 211398943Sluigi printf("\n"); 211498943Sluigi} 211598943Sluigi 2116117469Sluigistatic int 211798943Sluigisort_q(const void *pa, const void *pb) 211898943Sluigi{ 211998943Sluigi int rev = (do_sort < 0); 212098943Sluigi int field = rev ? -do_sort : do_sort; 212198943Sluigi long long res = 0; 212298943Sluigi const struct dn_flow_queue *a = pa; 212398943Sluigi const struct dn_flow_queue *b = pb; 212498943Sluigi 212598943Sluigi switch (field) { 212698943Sluigi case 1: /* pkts */ 212798943Sluigi res = a->len - b->len; 212898943Sluigi break; 212998943Sluigi case 2: /* bytes */ 213098943Sluigi res = a->len_bytes - b->len_bytes; 213198943Sluigi break; 213298943Sluigi 213398943Sluigi case 3: /* tot pkts */ 213498943Sluigi res = a->tot_pkts - b->tot_pkts; 213598943Sluigi break; 213698943Sluigi 213798943Sluigi case 4: /* tot bytes */ 213898943Sluigi res = a->tot_bytes - b->tot_bytes; 213998943Sluigi break; 214098943Sluigi } 214198943Sluigi if (res < 0) 214298943Sluigi res = -1; 214398943Sluigi if (res > 0) 214498943Sluigi res = 1; 214598943Sluigi return (int)(rev ? res : -res); 214698943Sluigi} 214798943Sluigi 214898943Sluigistatic void 214998943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 215098943Sluigi{ 215198943Sluigi int l; 2152145246Sbrooks int index_printed, indexes = 0; 2153145246Sbrooks char buff[255]; 2154145246Sbrooks struct protoent *pe; 215598943Sluigi 215698943Sluigi if (fs->rq_elements == 0) 215798943Sluigi return; 215898943Sluigi 215998943Sluigi if (do_sort != 0) 216098943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2161145246Sbrooks 2162145246Sbrooks /* Print IPv4 flows */ 2163145246Sbrooks index_printed = 0; 216498943Sluigi for (l = 0; l < fs->rq_elements; l++) { 216598943Sluigi struct in_addr ina; 216698943Sluigi 2167145246Sbrooks /* XXX: Should check for IPv4 flows */ 2168145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2169145246Sbrooks continue; 2170145246Sbrooks 2171145246Sbrooks if (!index_printed) { 2172145246Sbrooks index_printed = 1; 2173145246Sbrooks if (indexes > 0) /* currently a no-op */ 2174145246Sbrooks printf("\n"); 2175145246Sbrooks indexes++; 2176145246Sbrooks printf(" " 2177145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2178145246Sbrooks fs->flow_mask.proto, 2179145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2180145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2181145246Sbrooks 2182145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2183145246Sbrooks "____Dest. IP/port____ " 2184145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2185145246Sbrooks } 2186145246Sbrooks 218798943Sluigi printf("%3d ", q[l].hash_slot); 218898943Sluigi pe = getprotobynumber(q[l].id.proto); 218998943Sluigi if (pe) 219098943Sluigi printf("%-4s ", pe->p_name); 219198943Sluigi else 219298943Sluigi printf("%4u ", q[l].id.proto); 2193145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 219498943Sluigi printf("%15s/%-5d ", 219598943Sluigi inet_ntoa(ina), q[l].id.src_port); 219698943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 219798943Sluigi printf("%15s/%-5d ", 219898943Sluigi inet_ntoa(ina), q[l].id.dst_port); 219998943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 220098943Sluigi q[l].tot_pkts, q[l].tot_bytes, 220198943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 220298943Sluigi if (verbose) 220398943Sluigi printf(" S %20qd F %20qd\n", 220498943Sluigi q[l].S, q[l].F); 220598943Sluigi } 2206145246Sbrooks 2207145246Sbrooks /* Print IPv6 flows */ 2208145246Sbrooks index_printed = 0; 2209145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2210145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2211145246Sbrooks continue; 2212145246Sbrooks 2213145246Sbrooks if (!index_printed) { 2214145246Sbrooks index_printed = 1; 2215145246Sbrooks if (indexes > 0) 2216145246Sbrooks printf("\n"); 2217145246Sbrooks indexes++; 2218145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2219145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2220145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2221145246Sbrooks buff, sizeof(buff)); 2222145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2223145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2224145246Sbrooks buff, sizeof(buff) ); 2225145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2226145246Sbrooks 2227145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2228145246Sbrooks "______________Source IPv6/port_______________ " 2229145246Sbrooks "_______________Dest. IPv6/port_______________ " 2230145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2231145246Sbrooks } 2232145246Sbrooks printf("%3d ", q[l].hash_slot); 2233145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2234145246Sbrooks if (pe != NULL) 2235145246Sbrooks printf("%9s ", pe->p_name); 2236145246Sbrooks else 2237145246Sbrooks printf("%9u ", q[l].id.proto); 2238145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2239145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2240145246Sbrooks q[l].id.src_port); 2241145246Sbrooks printf(" %39s/%-5d ", 2242145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2243145246Sbrooks q[l].id.dst_port); 2244145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2245145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2246145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2247145246Sbrooks if (verbose) 2248145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2249145246Sbrooks } 225098943Sluigi} 225198943Sluigi 225298943Sluigistatic void 225398943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 225498943Sluigi{ 225598943Sluigi int l; 225698943Sluigi char qs[30]; 225798943Sluigi char plr[30]; 225898943Sluigi char red[90]; /* Display RED parameters */ 225998943Sluigi 226098943Sluigi l = fs->qsize; 226198943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 226298943Sluigi if (l >= 8192) 226398943Sluigi sprintf(qs, "%d KB", l / 1024); 226498943Sluigi else 226598943Sluigi sprintf(qs, "%d B", l); 226698943Sluigi } else 226798943Sluigi sprintf(qs, "%3d sl.", l); 226898943Sluigi if (fs->plr) 226998943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 227098943Sluigi else 227198943Sluigi plr[0] = '\0'; 227298943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 227398943Sluigi sprintf(red, 227498943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 227598943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 227698943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 227798943Sluigi SCALE_VAL(fs->min_th), 227898943Sluigi SCALE_VAL(fs->max_th), 227998943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 228098943Sluigi else 228198943Sluigi sprintf(red, "droptail"); 228298943Sluigi 228398943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 228498943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 228598943Sluigi} 228698943Sluigi 228798943Sluigistatic void 2288117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 228998943Sluigi{ 2290117469Sluigi int rulenum; 229198943Sluigi void *next = data; 229298943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 229398943Sluigi struct dn_flow_set *fs; 229498943Sluigi struct dn_flow_queue *q; 229598943Sluigi int l; 229698943Sluigi 229798943Sluigi if (ac > 0) 229898943Sluigi rulenum = strtoul(*av++, NULL, 10); 229998943Sluigi else 230098943Sluigi rulenum = 0; 230198943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 230298943Sluigi double b = p->bandwidth; 230398943Sluigi char buf[30]; 230498943Sluigi char prefix[80]; 230598943Sluigi 2306161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 230798943Sluigi break; /* done with pipes, now queues */ 230898943Sluigi 230998943Sluigi /* 231098943Sluigi * compute length, as pipe have variable size 231198943Sluigi */ 231298943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2313117469Sluigi next = (char *)p + l; 231498943Sluigi nbytes -= l; 231598943Sluigi 2316134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 231798943Sluigi continue; 231898943Sluigi 231998943Sluigi /* 232098943Sluigi * Print rate (or clocking interface) 232198943Sluigi */ 232298943Sluigi if (p->if_name[0] != '\0') 232398943Sluigi sprintf(buf, "%s", p->if_name); 232498943Sluigi else if (b == 0) 232598943Sluigi sprintf(buf, "unlimited"); 232698943Sluigi else if (b >= 1000000) 232798943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 232898943Sluigi else if (b >= 1000) 232998943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 233098943Sluigi else 233198943Sluigi sprintf(buf, "%7.3f bit/s ", b); 233298943Sluigi 233398943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 233498943Sluigi p->pipe_nr, buf, p->delay); 233598943Sluigi print_flowset_parms(&(p->fs), prefix); 233698943Sluigi if (verbose) 233798943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2338106505Smaxim 233998943Sluigi q = (struct dn_flow_queue *)(p+1); 234098943Sluigi list_queues(&(p->fs), q); 234198943Sluigi } 234298943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 234398943Sluigi char prefix[80]; 234498943Sluigi 2345161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 234698943Sluigi break; 234798943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2348117469Sluigi next = (char *)fs + l; 234998943Sluigi nbytes -= l; 2350134225Spjd 2351134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2352134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2353134225Spjd continue; 2354134225Spjd } 2355134225Spjd 235698943Sluigi q = (struct dn_flow_queue *)(fs+1); 235798943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 235898943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 235998943Sluigi print_flowset_parms(fs, prefix); 236098943Sluigi list_queues(fs, q); 236198943Sluigi } 236298943Sluigi} 236398943Sluigi 2364101978Sluigi/* 2365101978Sluigi * This one handles all set-related commands 2366101978Sluigi * ipfw set { show | enable | disable } 2367101978Sluigi * ipfw set swap X Y 2368101978Sluigi * ipfw set move X to Y 2369101978Sluigi * ipfw set move rule X to Y 2370101978Sluigi */ 237198943Sluigistatic void 2372101978Sluigisets_handler(int ac, char *av[]) 2373101978Sluigi{ 2374117328Sluigi uint32_t set_disable, masks[2]; 2375101978Sluigi int i, nbytes; 2376117328Sluigi uint16_t rulenum; 2377117328Sluigi uint8_t cmd, new_set; 2378101978Sluigi 2379101978Sluigi ac--; 2380101978Sluigi av++; 2381101978Sluigi 2382101978Sluigi if (!ac) 2383101978Sluigi errx(EX_USAGE, "set needs command"); 2384140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2385101978Sluigi void *data; 2386117469Sluigi char const *msg; 2387101978Sluigi 2388101978Sluigi nbytes = sizeof(struct ip_fw); 2389117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2390117328Sluigi err(EX_OSERR, "calloc"); 2391119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2392101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2393115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2394115793Sticso &set_disable, sizeof(set_disable)); 2395101978Sluigi 2396117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2397117577Sluigi if ((set_disable & (1<<i))) { 2398101978Sluigi printf("%s %d", msg, i); 2399101978Sluigi msg = ""; 2400101978Sluigi } 2401101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2402117655Sluigi for (i = 0; i < RESVD_SET; i++) 2403117577Sluigi if (!(set_disable & (1<<i))) { 2404101978Sluigi printf("%s %d", msg, i); 2405101978Sluigi msg = ""; 2406101978Sluigi } 2407101978Sluigi printf("\n"); 2408140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2409101978Sluigi ac--; av++; 2410101978Sluigi if (ac != 2) 2411101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2412101978Sluigi rulenum = atoi(av[0]); 2413101978Sluigi new_set = atoi(av[1]); 2414117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2415101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2416117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2417101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2418101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2419117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2420140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2421101978Sluigi ac--; av++; 2422140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2423101978Sluigi cmd = 2; 2424101978Sluigi ac--; av++; 2425101978Sluigi } else 2426101978Sluigi cmd = 3; 2427140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2428101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2429101978Sluigi rulenum = atoi(av[0]); 2430101978Sluigi new_set = atoi(av[2]); 2431117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2432101978Sluigi (cmd == 2 && rulenum == 65535) ) 2433101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2434117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2435101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2436101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2437117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2438140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2439140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2440140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2441101978Sluigi 2442101978Sluigi ac--; av++; 2443101978Sluigi masks[0] = masks[1] = 0; 2444101978Sluigi 2445101978Sluigi while (ac) { 2446101978Sluigi if (isdigit(**av)) { 2447101978Sluigi i = atoi(*av); 2448117655Sluigi if (i < 0 || i > RESVD_SET) 2449101978Sluigi errx(EX_DATAERR, 2450101978Sluigi "invalid set number %d\n", i); 2451101978Sluigi masks[which] |= (1<<i); 2452140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2453101978Sluigi which = 0; 2454140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2455101978Sluigi which = 1; 2456101978Sluigi else 2457101978Sluigi errx(EX_DATAERR, 2458101978Sluigi "invalid set command %s\n", *av); 2459101978Sluigi av++; ac--; 2460101978Sluigi } 2461101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2462101978Sluigi errx(EX_DATAERR, 2463101978Sluigi "cannot enable and disable the same set\n"); 2464101978Sluigi 2465117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2466101978Sluigi if (i) 2467101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2468101978Sluigi } else 2469101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2470101978Sluigi} 2471101978Sluigi 2472101978Sluigistatic void 2473109126Sdillonsysctl_handler(int ac, char *av[], int which) 2474109126Sdillon{ 2475109126Sdillon ac--; 2476109126Sdillon av++; 2477109126Sdillon 2478119668Smaxim if (ac == 0) { 2479109126Sdillon warnx("missing keyword to enable/disable\n"); 2480140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2481116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2482116770Sluigi &which, sizeof(which)); 2483140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2484116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2485116770Sluigi &which, sizeof(which)); 2486140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2487116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2488116770Sluigi &which, sizeof(which)); 2489140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2490116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2491116770Sluigi &which, sizeof(which)); 2492140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2493116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2494116770Sluigi &which, sizeof(which)); 2495140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2496136071Sgreen altq_set_enabled(which); 2497109126Sdillon } else { 2498109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2499109126Sdillon } 2500109126Sdillon} 2501109126Sdillon 2502109126Sdillonstatic void 2503117469Sluigilist(int ac, char *av[], int show_counters) 250498943Sluigi{ 250598943Sluigi struct ip_fw *r; 250698943Sluigi ipfw_dyn_rule *dynrules, *d; 250798943Sluigi 2508117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2509117469Sluigi char *lim; 2510117469Sluigi void *data = NULL; 2511112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 251298943Sluigi int exitval = EX_OK; 251398943Sluigi int lac; 251498943Sluigi char **lav; 2515117469Sluigi u_long rnum, last; 251698943Sluigi char *endptr; 251798943Sluigi int seen = 0; 2518170923Smaxim uint8_t set; 251998943Sluigi 252098943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 252198943Sluigi int nalloc = 1024; /* start somewhere... */ 252298943Sluigi 2523135036Smaxim last = 0; 2524135036Smaxim 2525117328Sluigi if (test_only) { 2526117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2527117328Sluigi return; 2528117328Sluigi } 2529117328Sluigi 253098943Sluigi ac--; 253198943Sluigi av++; 253298943Sluigi 253398943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 253498943Sluigi nbytes = nalloc; 253598943Sluigi 253698943Sluigi while (nbytes >= nalloc) { 253798943Sluigi nalloc = nalloc * 2 + 200; 253898943Sluigi nbytes = nalloc; 253998943Sluigi if ((data = realloc(data, nbytes)) == NULL) 254098943Sluigi err(EX_OSERR, "realloc"); 2541119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 254298943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 254398943Sluigi do_pipe ? "DUMMYNET" : "FW"); 254498943Sluigi } 254598943Sluigi 254698943Sluigi if (do_pipe) { 254798943Sluigi list_pipes(data, nbytes, ac, av); 254898943Sluigi goto done; 254998943Sluigi } 255098943Sluigi 255198943Sluigi /* 255298943Sluigi * Count static rules. They have variable size so we 255398943Sluigi * need to scan the list to count them. 255498943Sluigi */ 2555117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2556117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2557117469Sluigi ++nstat, r = NEXT(r) ) 255898943Sluigi ; /* nothing */ 255998943Sluigi 256098943Sluigi /* 256198943Sluigi * Count dynamic rules. This is easier as they have 256298943Sluigi * fixed size. 256398943Sluigi */ 2564117469Sluigi r = NEXT(r); 256598943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2566117469Sluigi n = (char *)r - (char *)data; 256798943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 256898943Sluigi 2569112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2570112189Smaxim bcwidth = pcwidth = 0; 2571117469Sluigi if (show_counters) { 2572117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2573170923Smaxim /* skip rules from another set */ 2574170923Smaxim if (use_set && r->set != use_set - 1) 2575170923Smaxim continue; 2576170923Smaxim 2577112189Smaxim /* packet counter */ 2578115793Sticso width = snprintf(NULL, 0, "%llu", 2579115793Sticso align_uint64(&r->pcnt)); 2580112189Smaxim if (width > pcwidth) 2581112189Smaxim pcwidth = width; 2582112189Smaxim 2583112189Smaxim /* byte counter */ 2584115793Sticso width = snprintf(NULL, 0, "%llu", 2585115793Sticso align_uint64(&r->bcnt)); 2586112189Smaxim if (width > bcwidth) 2587112189Smaxim bcwidth = width; 2588112189Smaxim } 2589112189Smaxim } 2590112189Smaxim if (do_dynamic && ndyn) { 2591112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2592170923Smaxim if (use_set) { 2593170923Smaxim /* skip rules from another set */ 2594171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2595170923Smaxim &set, sizeof(uint8_t)); 2596170923Smaxim if (set != use_set - 1) 2597170923Smaxim continue; 2598170923Smaxim } 2599115793Sticso width = snprintf(NULL, 0, "%llu", 2600115793Sticso align_uint64(&d->pcnt)); 2601112189Smaxim if (width > pcwidth) 2602112189Smaxim pcwidth = width; 2603112189Smaxim 2604115793Sticso width = snprintf(NULL, 0, "%llu", 2605115793Sticso align_uint64(&d->bcnt)); 2606112189Smaxim if (width > bcwidth) 2607112189Smaxim bcwidth = width; 2608112189Smaxim } 2609112189Smaxim } 261098943Sluigi /* if no rule numbers were specified, list all rules */ 261198943Sluigi if (ac == 0) { 2612170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2613170923Smaxim if (use_set && r->set != use_set - 1) 2614170923Smaxim continue; 2615112189Smaxim show_ipfw(r, pcwidth, bcwidth); 2616170923Smaxim } 261798943Sluigi 261898943Sluigi if (do_dynamic && ndyn) { 261998943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 2620170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2621170923Smaxim if (use_set) { 2622171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2623170923Smaxim &set, sizeof(uint8_t)); 2624170923Smaxim if (set != use_set - 1) 2625170923Smaxim continue; 2626170923Smaxim } 2627112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 262898943Sluigi } 2629170923Smaxim } 263098943Sluigi goto done; 263198943Sluigi } 263298943Sluigi 263398943Sluigi /* display specific rules requested on command line */ 263498943Sluigi 263598943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 263698943Sluigi /* convert command line rule # */ 2637117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2638117469Sluigi if (*endptr == '-') 2639117469Sluigi last = strtoul(endptr+1, &endptr, 10); 264098943Sluigi if (*endptr) { 264198943Sluigi exitval = EX_USAGE; 264298943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 264398943Sluigi continue; 264498943Sluigi } 2645117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2646117469Sluigi if (r->rulenum > last) 264798943Sluigi break; 2648170923Smaxim if (use_set && r->set != use_set - 1) 2649170923Smaxim continue; 2650117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2651112189Smaxim show_ipfw(r, pcwidth, bcwidth); 265298943Sluigi seen = 1; 265398943Sluigi } 265498943Sluigi } 265598943Sluigi if (!seen) { 265698943Sluigi /* give precedence to other error(s) */ 265798943Sluigi if (exitval == EX_OK) 265898943Sluigi exitval = EX_UNAVAILABLE; 265998943Sluigi warnx("rule %lu does not exist", rnum); 266098943Sluigi } 266198943Sluigi } 266298943Sluigi 266398943Sluigi if (do_dynamic && ndyn) { 266498943Sluigi printf("## Dynamic rules:\n"); 266598943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2666145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2667117469Sluigi if (*endptr == '-') 2668117469Sluigi last = strtoul(endptr+1, &endptr, 10); 266998943Sluigi if (*endptr) 267098943Sluigi /* already warned */ 267198943Sluigi continue; 267298943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2673115793Sticso uint16_t rulenum; 2674115793Sticso 2675115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2676115793Sticso if (rulenum > rnum) 267798943Sluigi break; 2678170923Smaxim if (use_set) { 2679171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2680170923Smaxim &set, sizeof(uint8_t)); 2681170923Smaxim if (set != use_set - 1) 2682170923Smaxim continue; 2683170923Smaxim } 2684117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2685112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 268698943Sluigi } 268798943Sluigi } 268898943Sluigi } 268998943Sluigi 269098943Sluigi ac = 0; 269198943Sluigi 269298943Sluigidone: 269398943Sluigi free(data); 269498943Sluigi 269598943Sluigi if (exitval != EX_OK) 269698943Sluigi exit(exitval); 2697117469Sluigi#undef NEXT 269898943Sluigi} 269998943Sluigi 270098943Sluigistatic void 270198943Sluigishow_usage(void) 270298943Sluigi{ 270398943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 270498943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 270598943Sluigi); 270698943Sluigi exit(EX_USAGE); 270798943Sluigi} 270898943Sluigi 270998943Sluigistatic void 271098943Sluigihelp(void) 271198943Sluigi{ 2712117328Sluigi fprintf(stderr, 2713117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2714123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2715117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2716117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2717117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2718165648Spiso"nat N config {ip IPADDR|if IFNAME|log|deny_in|same_ports|unreg_only|reset|\n" 2719165648Spiso" reverse|proxy_only|redirect_addr linkspec|\n" 2720165648Spiso" redirect_port linkspec|redirect_proto linkspec}\n" 2721117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2722170923Smaxim"set N {show|list|zero|resetlog|delete} [N{,N}] | flush\n" 2723130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 272498943Sluigi"\n" 2725136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2726149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2727149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2728178888Sjulian" pipe N | queue N | nat N | setfib FIB\n" 2729136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 273098943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2731145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2732145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2733130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2734145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2735145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2736117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2737117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2738136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2739145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2740145246Sbrooks" {dst-port|src-port} LIST |\n" 2741117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2742117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2743117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2744178888Sjulian" icmp6types LIST | ext6hdr LIST | flow-id N[,N] | fib FIB |\n" 2745117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2746117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2747136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 274898943Sluigi); 274998943Sluigiexit(0); 275098943Sluigi} 275198943Sluigi 275298943Sluigi 275398943Sluigistatic int 275498943Sluigilookup_host (char *host, struct in_addr *ipaddr) 275598943Sluigi{ 275698943Sluigi struct hostent *he; 275798943Sluigi 275898943Sluigi if (!inet_aton(host, ipaddr)) { 275998943Sluigi if ((he = gethostbyname(host)) == NULL) 276098943Sluigi return(-1); 276198943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 276298943Sluigi } 276398943Sluigi return(0); 276498943Sluigi} 276598943Sluigi 276698943Sluigi/* 276798943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 276898943Sluigi * Update length as appropriate. 276998943Sluigi * The following formats are allowed: 277098943Sluigi * me returns O_IP_*_ME 277198943Sluigi * 1.2.3.4 single IP address 277298943Sluigi * 1.2.3.4:5.6.7.8 address:mask 277398943Sluigi * 1.2.3.4/24 address/mask 277498943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2775117328Sluigi * We can have multiple comma-separated address/mask entries. 277698943Sluigi */ 277798943Sluigistatic void 277898943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 277998943Sluigi{ 2780117328Sluigi int len = 0; 2781117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 278298943Sluigi 278398943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 278498943Sluigi 2785140271Sbrooks if (_substrcmp(av, "any") == 0) 278698943Sluigi return; 278798943Sluigi 2788140271Sbrooks if (_substrcmp(av, "me") == 0) { 278998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 279098943Sluigi return; 279198943Sluigi } 279298943Sluigi 2793140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2794130281Sru char *p = strchr(av + 6, ','); 2795130281Sru 2796130281Sru if (p) 2797130281Sru *p++ = '\0'; 2798130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2799130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2800130281Sru if (p) { 2801130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2802130281Sru d[0] = strtoul(p, NULL, 0); 2803130281Sru } else 2804130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2805130281Sru return; 2806130281Sru } 2807130281Sru 2808117328Sluigi while (av) { 2809117328Sluigi /* 2810117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2811117328Sluigi * ',' indicating another address follows, '{' indicating a 2812117328Sluigi * set of addresses of unspecified size. 2813117328Sluigi */ 2814165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2815117328Sluigi int masklen; 2816165851Smlaier char md, nd; 2817117328Sluigi 281898943Sluigi if (p) { 281998943Sluigi md = *p; 282098943Sluigi *p++ = '\0'; 2821165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2822165851Smlaier nd = *t; 2823165851Smlaier *t = '\0'; 2824165851Smlaier } 2825117328Sluigi } else 2826117328Sluigi md = '\0'; 282798943Sluigi 2828117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 282998943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 283098943Sluigi switch (md) { 283198943Sluigi case ':': 2832117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 283398943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 283498943Sluigi break; 283598943Sluigi case '/': 2836117328Sluigi masklen = atoi(p); 2837117328Sluigi if (masklen == 0) 2838117328Sluigi d[1] = htonl(0); /* mask */ 2839117328Sluigi else if (masklen > 32) 284098943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 284198943Sluigi else 2842117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 284398943Sluigi break; 2844117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2845117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2846117328Sluigi *(--p) = md; 2847117328Sluigi break; 2848117328Sluigi 2849117328Sluigi case ',': /* single address plus continuation */ 2850117328Sluigi *(--p) = md; 2851117328Sluigi /* FALLTHROUGH */ 2852117328Sluigi case 0: /* initialization value */ 285398943Sluigi default: 2854117328Sluigi d[1] = htonl(~0); /* force /32 */ 285598943Sluigi break; 285698943Sluigi } 2857117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2858165851Smlaier if (t) 2859165851Smlaier *t = nd; 2860117328Sluigi /* find next separator */ 286198943Sluigi if (p) 2862117328Sluigi p = strpbrk(p, ",{"); 2863117328Sluigi if (p && *p == '{') { 2864117328Sluigi /* 2865117328Sluigi * We have a set of addresses. They are stored as follows: 2866117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2867117328Sluigi * addr is the base address IN HOST FORMAT 2868117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2869117328Sluigi * the next multiple of 32) with bits set 2870117328Sluigi * for each host in the map. 2871117328Sluigi */ 2872117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 287398943Sluigi int low, high; 2874117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 287598943Sluigi 2876117328Sluigi if (len > 0) 2877117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2878117328Sluigi if (i < 24 || i > 31) 2879117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2880117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2881117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 288298943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 288398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2884101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2885117328Sluigi map[i] = 0; /* clear map */ 288698943Sluigi 2887117328Sluigi av = p + 1; 2888117328Sluigi low = d[0] & 0xff; 288998943Sluigi high = low + cmd->o.arg1 - 1; 2890117328Sluigi /* 2891117328Sluigi * Here, i stores the previous value when we specify a range 2892117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2893117328Sluigi * have no previous value. 2894117328Sluigi */ 2895116716Sluigi i = -1; /* previous value in a range */ 289698943Sluigi while (isdigit(*av)) { 289798943Sluigi char *s; 2898117328Sluigi int a = strtol(av, &s, 0); 289998943Sluigi 2900117328Sluigi if (s == av) { /* no parameter */ 2901117328Sluigi if (*av != '}') 2902117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2903117328Sluigi if (i != -1) 2904117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2905117328Sluigi break; 2906117328Sluigi } 2907117328Sluigi if (a < low || a > high) 2908117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 290998943Sluigi a, low, high); 291098943Sluigi a -= low; 2911116716Sluigi if (i == -1) /* no previous in range */ 2912116716Sluigi i = a; 2913116716Sluigi else { /* check that range is valid */ 2914116716Sluigi if (i > a) 2915116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2916116716Sluigi i+low, a+low); 2917116716Sluigi if (*s == '-') 2918116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2919116716Sluigi } 2920116716Sluigi for (; i <= a; i++) 2921117328Sluigi map[i/32] |= 1<<(i & 31); 2922116716Sluigi i = -1; 2923116716Sluigi if (*s == '-') 2924116716Sluigi i = a; 2925117328Sluigi else if (*s == '}') 2926116716Sluigi break; 292798943Sluigi av = s+1; 292898943Sluigi } 292998943Sluigi return; 293098943Sluigi } 2931117328Sluigi av = p; 2932117328Sluigi if (av) /* then *av must be a ',' */ 2933117328Sluigi av++; 293498943Sluigi 2935117328Sluigi /* Check this entry */ 2936117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2937117328Sluigi /* 2938117328Sluigi * 'any' turns the entire list into a NOP. 2939117328Sluigi * 'not any' never matches, so it is removed from the 2940117328Sluigi * list unless it is the only item, in which case we 2941117328Sluigi * report an error. 2942117328Sluigi */ 2943117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2944117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2945117328Sluigi errx(EX_DATAERR, "not any never matches"); 2946117328Sluigi } 2947117328Sluigi /* else do nothing and skip this entry */ 2948128067Smaxim return; 2949117328Sluigi } 2950117328Sluigi /* A single IP can be stored in an optimized format */ 2951117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 295298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2953117328Sluigi return; 2954117328Sluigi } 2955117328Sluigi len += 2; /* two words... */ 2956117328Sluigi d += 2; 2957117328Sluigi } /* end while */ 2958162363Sjhay if (len + 1 > F_LEN_MASK) 2959162363Sjhay errx(EX_DATAERR, "address list too long"); 2960117328Sluigi cmd->o.len |= len+1; 296198943Sluigi} 296298943Sluigi 296398943Sluigi 2964145246Sbrooks/* Try to find ipv6 address by hostname */ 2965145246Sbrooksstatic int 2966145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2967145246Sbrooks{ 2968145246Sbrooks struct hostent *he; 2969145246Sbrooks 2970145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2971145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2972145246Sbrooks return(-1); 2973145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2974145246Sbrooks } 2975145246Sbrooks return(0); 2976145246Sbrooks} 2977145246Sbrooks 2978145246Sbrooks 2979145246Sbrooks/* n2mask sets n bits of the mask */ 2980145246Sbrooksstatic void 2981145246Sbrooksn2mask(struct in6_addr *mask, int n) 2982145246Sbrooks{ 2983145246Sbrooks static int minimask[9] = 2984145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2985145246Sbrooks u_char *p; 2986145246Sbrooks 2987145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2988145246Sbrooks p = (u_char *) mask; 2989145246Sbrooks for (; n > 0; p++, n -= 8) { 2990145246Sbrooks if (n >= 8) 2991145246Sbrooks *p = 0xff; 2992145246Sbrooks else 2993145246Sbrooks *p = minimask[n]; 2994145246Sbrooks } 2995145246Sbrooks return; 2996145246Sbrooks} 2997145246Sbrooks 2998145246Sbrooks 299998943Sluigi/* 3000145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 3001145246Sbrooks * Update length as appropriate. 3002145246Sbrooks * The following formats are allowed: 3003145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 3004145246Sbrooks * me returns O_IP6_*_ME 3005145246Sbrooks * 3006145246Sbrooks * 03f1::234:123:0342 single IP6 addres 3007145246Sbrooks * 03f1::234:123:0342/24 address/mask 3008145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 3009145246Sbrooks * 3010145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 3011145246Sbrooks * are typically random past the initial prefix. 3012145246Sbrooks * Return 1 on success, 0 on failure. 3013145246Sbrooks */ 3014145246Sbrooksstatic int 3015145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 3016145246Sbrooks{ 3017145246Sbrooks int len = 0; 3018145246Sbrooks struct in6_addr *d = &(cmd->addr6); 3019145246Sbrooks /* 3020145246Sbrooks * Needed for multiple address. 3021145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 3022145246Sbrooks */ 3023145246Sbrooks 3024145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 3025145246Sbrooks 3026145246Sbrooks if (strcmp(av, "any") == 0) 3027145246Sbrooks return (1); 3028145246Sbrooks 3029145246Sbrooks 3030145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 3031145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3032145246Sbrooks return (1); 3033145246Sbrooks } 3034145246Sbrooks 3035145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 3036145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 3037145246Sbrooks return (1); 3038145246Sbrooks } 3039145246Sbrooks 3040145246Sbrooks av = strdup(av); 3041145246Sbrooks while (av) { 3042145246Sbrooks /* 3043145246Sbrooks * After the address we can have '/' indicating a mask, 3044145246Sbrooks * or ',' indicating another address follows. 3045145246Sbrooks */ 3046145246Sbrooks 3047145246Sbrooks char *p; 3048145246Sbrooks int masklen; 3049145246Sbrooks char md = '\0'; 3050145246Sbrooks 3051145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 3052145246Sbrooks md = *p; /* save the separator */ 3053145246Sbrooks *p = '\0'; /* terminate address string */ 3054145246Sbrooks p++; /* and skip past it */ 3055145246Sbrooks } 3056145246Sbrooks /* now p points to NULL, mask or next entry */ 3057145246Sbrooks 3058145246Sbrooks /* lookup stores address in *d as a side effect */ 3059145246Sbrooks if (lookup_host6(av, d) != 0) { 3060145246Sbrooks /* XXX: failed. Free memory and go */ 3061145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 3062145246Sbrooks } 3063145246Sbrooks /* next, look at the mask, if any */ 3064145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 3065145246Sbrooks if (masklen > 128 || masklen < 0) 3066145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 3067145246Sbrooks else 3068145246Sbrooks n2mask(&d[1], masklen); 3069145246Sbrooks 3070145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 3071145246Sbrooks 3072145246Sbrooks /* find next separator */ 3073145246Sbrooks 3074145246Sbrooks if (md == '/') { /* find separator past the mask */ 3075145246Sbrooks p = strpbrk(p, ","); 3076145246Sbrooks if (p != NULL) 3077145246Sbrooks p++; 3078145246Sbrooks } 3079145246Sbrooks av = p; 3080145246Sbrooks 3081145246Sbrooks /* Check this entry */ 3082145246Sbrooks if (masklen == 0) { 3083145246Sbrooks /* 3084145246Sbrooks * 'any' turns the entire list into a NOP. 3085145246Sbrooks * 'not any' never matches, so it is removed from the 3086145246Sbrooks * list unless it is the only item, in which case we 3087145246Sbrooks * report an error. 3088145246Sbrooks */ 3089145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3090145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3091145246Sbrooks continue; 3092145246Sbrooks } 3093145246Sbrooks 3094145246Sbrooks /* 3095145246Sbrooks * A single IP can be stored alone 3096145246Sbrooks */ 3097145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3098145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3099145246Sbrooks break; 3100145246Sbrooks } 3101145246Sbrooks 3102145246Sbrooks /* Update length and pointer to arguments */ 3103145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3104145246Sbrooks d += 2; 3105145246Sbrooks } /* end while */ 3106145246Sbrooks 3107145246Sbrooks /* 3108145246Sbrooks * Total length of the command, remember that 1 is the size of 3109145246Sbrooks * the base command. 3110145246Sbrooks */ 3111162363Sjhay if (len + 1 > F_LEN_MASK) 3112162363Sjhay errx(EX_DATAERR, "address list too long"); 3113145246Sbrooks cmd->o.len |= len+1; 3114145246Sbrooks free(av); 3115145246Sbrooks return (1); 3116145246Sbrooks} 3117145246Sbrooks 3118145246Sbrooks/* 3119145246Sbrooks * fills command for ipv6 flow-id filtering 3120145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3121145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3122145246Sbrooks * additional flow-id we want to filter, the basic is 1 3123145246Sbrooks */ 3124145246Sbrooksvoid 3125145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3126145246Sbrooks{ 3127145246Sbrooks u_int32_t type; /* Current flow number */ 3128145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3129145246Sbrooks char *s = av; 3130145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3131145246Sbrooks 3132145246Sbrooks while (s) { 3133145246Sbrooks av = strsep( &s, ",") ; 3134145246Sbrooks type = strtoul(av, &av, 0); 3135145246Sbrooks if (*av != ',' && *av != '\0') 3136145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3137145246Sbrooks if (type > 0xfffff) 3138145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3139145246Sbrooks cmd->d[nflow] |= type; 3140145246Sbrooks nflow++; 3141145246Sbrooks } 3142145246Sbrooks if( nflow > 0 ) { 3143145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3144145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3145145246Sbrooks cmd->o.arg1 = nflow; 3146145246Sbrooks } 3147145246Sbrooks else { 3148145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3149145246Sbrooks } 3150145246Sbrooks} 3151145246Sbrooks 3152145246Sbrooksstatic ipfw_insn * 3153145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3154145246Sbrooks{ 3155145246Sbrooks 3156145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3157145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3158145246Sbrooks ; 3159145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3160145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3161145246Sbrooks } else if (F_LEN(cmd) == 3162145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3163145246Sbrooks /* single IP, no mask*/ 3164145246Sbrooks cmd->opcode = O_IP6_SRC; 3165145246Sbrooks } else { /* addr/mask opt */ 3166145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3167145246Sbrooks } 3168145246Sbrooks return cmd; 3169145246Sbrooks} 3170145246Sbrooks 3171145246Sbrooksstatic ipfw_insn * 3172145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3173145246Sbrooks{ 3174145246Sbrooks 3175145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3176145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3177145246Sbrooks ; 3178145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3179145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3180145246Sbrooks } else if (F_LEN(cmd) == 3181145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3182145246Sbrooks /* single IP, no mask*/ 3183145246Sbrooks cmd->opcode = O_IP6_DST; 3184145246Sbrooks } else { /* addr/mask opt */ 3185145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3186145246Sbrooks } 3187145246Sbrooks return cmd; 3188145246Sbrooks} 3189145246Sbrooks 3190145246Sbrooks 3191145246Sbrooks/* 319298943Sluigi * helper function to process a set of flags and set bits in the 319398943Sluigi * appropriate masks. 319498943Sluigi */ 319598943Sluigistatic void 319698943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 319798943Sluigi struct _s_x *flags, char *p) 319898943Sluigi{ 3199117328Sluigi uint8_t set=0, clear=0; 320098943Sluigi 320198943Sluigi while (p && *p) { 320298943Sluigi char *q; /* points to the separator */ 320398943Sluigi int val; 3204117328Sluigi uint8_t *which; /* mask we are working on */ 320598943Sluigi 320698943Sluigi if (*p == '!') { 320798943Sluigi p++; 320898943Sluigi which = &clear; 320998943Sluigi } else 321098943Sluigi which = &set; 321198943Sluigi q = strchr(p, ','); 321298943Sluigi if (q) 321398943Sluigi *q++ = '\0'; 321498943Sluigi val = match_token(flags, p); 321598943Sluigi if (val <= 0) 321698943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3217117328Sluigi *which |= (uint8_t)val; 321898943Sluigi p = q; 321998943Sluigi } 322098943Sluigi cmd->opcode = opcode; 322198943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 322298943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 322398943Sluigi} 322498943Sluigi 322598943Sluigi 322698943Sluigistatic void 322798943Sluigidelete(int ac, char *av[]) 322898943Sluigi{ 3229117328Sluigi uint32_t rulenum; 3230117469Sluigi struct dn_pipe p; 323198943Sluigi int i; 323298943Sluigi int exitval = EX_OK; 3233101628Sluigi int do_set = 0; 323498943Sluigi 3235117469Sluigi memset(&p, 0, sizeof p); 323698943Sluigi 323798943Sluigi av++; ac--; 3238130013Scsjp NEED1("missing rule specification"); 3239140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3240170923Smaxim /* Do not allow using the following syntax: 3241170923Smaxim * ipfw set N delete set M 3242170923Smaxim */ 3243170923Smaxim if (use_set) 3244170923Smaxim errx(EX_DATAERR, "invalid syntax"); 3245101978Sluigi do_set = 1; /* delete set */ 3246101628Sluigi ac--; av++; 3247101978Sluigi } 324898943Sluigi 324998943Sluigi /* Rule number */ 325098943Sluigi while (ac && isdigit(**av)) { 325198943Sluigi i = atoi(*av); av++; ac--; 3252165648Spiso if (do_nat) { 3253165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3254165648Spiso if (exitval) { 3255165648Spiso exitval = EX_UNAVAILABLE; 3256165648Spiso warn("rule %u not available", i); 3257165648Spiso } 3258165648Spiso } else if (do_pipe) { 325998943Sluigi if (do_pipe == 1) 3260117469Sluigi p.pipe_nr = i; 326198943Sluigi else 3262117469Sluigi p.fs.fs_nr = i; 3263117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 326498943Sluigi if (i) { 326598943Sluigi exitval = 1; 326698943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3267117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 326898943Sluigi } 326998943Sluigi } else { 3270170923Smaxim if (use_set) 3271170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 3272170923Smaxim ((use_set - 1) << 16); 3273170923Smaxim else 3274101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3275117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 327698943Sluigi if (i) { 327798943Sluigi exitval = EX_UNAVAILABLE; 327898943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 327998943Sluigi rulenum); 328098943Sluigi } 328198943Sluigi } 328298943Sluigi } 328398943Sluigi if (exitval != EX_OK) 328498943Sluigi exit(exitval); 328598943Sluigi} 328698943Sluigi 328798943Sluigi 328898943Sluigi/* 328998943Sluigi * fill the interface structure. We do not check the name as we can 329098943Sluigi * create interfaces dynamically, so checking them at insert time 329198943Sluigi * makes relatively little sense. 3292121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3293121816Sbrooks * patterns which match interfaces. 329498943Sluigi */ 329598943Sluigistatic void 329698943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 329798943Sluigi{ 329898943Sluigi cmd->name[0] = '\0'; 329998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 330098943Sluigi 330198943Sluigi /* Parse the interface or address */ 3302140271Sbrooks if (strcmp(arg, "any") == 0) 330398943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 330498943Sluigi else if (!isdigit(*arg)) { 3305121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3306121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 330798943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 330898943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 330998943Sluigi} 331098943Sluigi 3311165648Spiso/* 3312165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3313165648Spiso * 3314165648Spiso * n->ip ip address of interface "ifn" 3315165648Spiso * n->if_name copy of interface name "ifn" 3316165648Spiso */ 331798943Sluigistatic void 3318165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3319165648Spiso{ 3320165648Spiso size_t needed; 3321165648Spiso int mib[6]; 3322165648Spiso char *buf, *lim, *next; 3323165648Spiso struct if_msghdr *ifm; 3324165648Spiso struct ifa_msghdr *ifam; 3325165648Spiso struct sockaddr_dl *sdl; 3326165648Spiso struct sockaddr_in *sin; 3327165648Spiso int ifIndex, ifMTU; 3328165648Spiso 3329165648Spiso mib[0] = CTL_NET; 3330165648Spiso mib[1] = PF_ROUTE; 3331165648Spiso mib[2] = 0; 3332165648Spiso mib[3] = AF_INET; 3333165648Spiso mib[4] = NET_RT_IFLIST; 3334165648Spiso mib[5] = 0; 3335165648Spiso/* 3336165648Spiso * Get interface data. 3337165648Spiso */ 3338165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3339165648Spiso err(1, "iflist-sysctl-estimate"); 3340165648Spiso if ((buf = malloc(needed)) == NULL) 3341165648Spiso errx(1, "malloc failed"); 3342165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3343165648Spiso err(1, "iflist-sysctl-get"); 3344165648Spiso lim = buf + needed; 3345165648Spiso/* 3346165648Spiso * Loop through interfaces until one with 3347165648Spiso * given name is found. This is done to 3348165648Spiso * find correct interface index for routing 3349165648Spiso * message processing. 3350165648Spiso */ 3351165648Spiso ifIndex = 0; 3352165648Spiso next = buf; 3353165648Spiso while (next < lim) { 3354165648Spiso ifm = (struct if_msghdr *)next; 3355165648Spiso next += ifm->ifm_msglen; 3356165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3357165648Spiso if (verbose) 3358165648Spiso warnx("routing message version %d " 3359165648Spiso "not understood", ifm->ifm_version); 3360165648Spiso continue; 3361165648Spiso } 3362165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3363165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3364165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3365165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3366165648Spiso ifIndex = ifm->ifm_index; 3367165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3368165648Spiso break; 3369165648Spiso } 3370165648Spiso } 3371165648Spiso } 3372165648Spiso if (!ifIndex) 3373165648Spiso errx(1, "unknown interface name %s", ifn); 3374165648Spiso/* 3375165648Spiso * Get interface address. 3376165648Spiso */ 3377165648Spiso sin = NULL; 3378165648Spiso while (next < lim) { 3379165648Spiso ifam = (struct ifa_msghdr *)next; 3380165648Spiso next += ifam->ifam_msglen; 3381165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3382165648Spiso if (verbose) 3383165648Spiso warnx("routing message version %d " 3384165648Spiso "not understood", ifam->ifam_version); 3385165648Spiso continue; 3386165648Spiso } 3387165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3388165648Spiso break; 3389165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3390165648Spiso int i; 3391165648Spiso char *cp = (char *)(ifam + 1); 3392165648Spiso 3393165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3394165648Spiso if (ifam->ifam_addrs & i) 3395165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3396165648Spiso } 3397165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3398165648Spiso sin = (struct sockaddr_in *)cp; 3399165648Spiso break; 3400165648Spiso } 3401165648Spiso } 3402165648Spiso } 3403165648Spiso if (sin == NULL) 3404165648Spiso errx(1, "%s: cannot get interface address", ifn); 3405165648Spiso 3406165648Spiso n->ip = sin->sin_addr; 3407165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3408165648Spiso 3409165648Spiso free(buf); 3410165648Spiso} 3411165648Spiso 3412165648Spiso/* 3413165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3414165648Spiso * it would be better to move them outside natd.c, in a file 3415165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3416165648Spiso * with it. 3417165648Spiso */ 3418165648Spiso 3419165648Spiso/* 3420165648Spiso * Definition of a port range, and macros to deal with values. 3421165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3422165648Spiso * LO 16-bits == number of ports in range 3423165648Spiso * NOTES: - Port values are not stored in network byte order. 3424165648Spiso */ 3425165648Spiso 3426165648Spiso#define port_range u_long 3427165648Spiso 3428165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3429165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3430165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3431165648Spiso 3432165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3433165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3434165648Spiso 3435165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3436165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3437165648Spiso 3438165648Spisostatic void 3439165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3440165648Spiso{ 3441165648Spiso struct hostent* hp; 3442165648Spiso 3443165648Spiso if (inet_aton (str, addr)) 3444165648Spiso return; 3445165648Spiso 3446165648Spiso hp = gethostbyname (str); 3447165648Spiso if (!hp) 3448165648Spiso errx (1, "unknown host %s", str); 3449165648Spiso 3450165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3451165648Spiso} 3452165648Spiso 3453165648Spisostatic int 3454165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3455165648Spiso{ 3456165648Spiso char* sep; 3457165648Spiso struct servent* sp; 3458165648Spiso char* end; 3459165648Spiso u_short loPort; 3460165648Spiso u_short hiPort; 3461165648Spiso 3462165648Spiso /* First see if this is a service, return corresponding port if so. */ 3463165648Spiso sp = getservbyname (str,proto); 3464165648Spiso if (sp) { 3465165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3466165648Spiso SETNUMPORTS(*portRange, 1); 3467165648Spiso return 0; 3468165648Spiso } 3469165648Spiso 3470165648Spiso /* Not a service, see if it's a single port or port range. */ 3471165648Spiso sep = strchr (str, '-'); 3472165648Spiso if (sep == NULL) { 3473165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3474165648Spiso if (end != str) { 3475165648Spiso /* Single port. */ 3476165648Spiso SETNUMPORTS(*portRange, 1); 3477165648Spiso return 0; 3478165648Spiso } 3479165648Spiso 3480165648Spiso /* Error in port range field. */ 3481165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3482165648Spiso } 3483165648Spiso 3484165648Spiso /* Port range, get the values and sanity check. */ 3485165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3486165648Spiso SETLOPORT(*portRange, loPort); 3487165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3488165648Spiso if (loPort <= hiPort) 3489165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3490165648Spiso 3491165648Spiso if (GETNUMPORTS(*portRange) == 0) 3492165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3493165648Spiso 3494165648Spiso return 0; 3495165648Spiso} 3496165648Spiso 3497165648Spisostatic int 3498165648SpisoStrToProto (const char* str) 3499165648Spiso{ 3500165648Spiso if (!strcmp (str, "tcp")) 3501165648Spiso return IPPROTO_TCP; 3502165648Spiso 3503165648Spiso if (!strcmp (str, "udp")) 3504165648Spiso return IPPROTO_UDP; 3505165648Spiso 3506165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3507165648Spiso} 3508165648Spiso 3509165648Spisostatic int 3510165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3511165648Spiso port_range *portRange) 3512165648Spiso{ 3513165648Spiso char* ptr; 3514165648Spiso 3515165648Spiso ptr = strchr (str, ':'); 3516165648Spiso if (!ptr) 3517165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3518165648Spiso 3519165648Spiso *ptr = '\0'; 3520165648Spiso ++ptr; 3521165648Spiso 3522165648Spiso StrToAddr (str, addr); 3523165648Spiso return StrToPortRange (ptr, proto, portRange); 3524165648Spiso} 3525165648Spiso 3526165648Spiso/* End of stuff taken from natd.c. */ 3527165648Spiso 3528165648Spiso#define INC_ARGCV() do { \ 3529165648Spiso (*_av)++; \ 3530165648Spiso (*_ac)--; \ 3531165648Spiso av = *_av; \ 3532165648Spiso ac = *_ac; \ 3533165648Spiso} while(0) 3534165648Spiso 3535165648Spiso/* 3536165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3537165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3538165648Spiso * and SetupProtoRedirect() from natd.c. 3539165648Spiso * 3540165648Spiso * Every setup_* function fills at least one redirect entry 3541165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3542165648Spiso * in buf. 3543165648Spiso * 3544165648Spiso * The format of data in buf is: 3545165648Spiso * 3546165648Spiso * 3547165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3548165648Spiso * 3549165648Spiso * ------------------------------------- ------------ 3550165648Spiso * | | .....X ... | | | | ..... 3551165648Spiso * ------------------------------------- ...... ------------ 3552165648Spiso * ^ 3553165648Spiso * spool_cnt n=0 ...... n=(X-1) 3554165648Spiso * 3555165648Spiso * len points to the amount of available space in buf 3556165648Spiso * space counts the memory consumed by every function 3557165648Spiso * 3558165648Spiso * XXX - Every function get all the argv params so it 3559165648Spiso * has to check, in optional parameters, that the next 3560165648Spiso * args is a valid option for the redir entry and not 3561165648Spiso * another token. Only redir_port and redir_proto are 3562165648Spiso * affected by this. 3563165648Spiso */ 3564165648Spiso 3565165648Spisostatic int 3566165648Spisosetup_redir_addr(char *spool_buf, int len, 3567165648Spiso int *_ac, char ***_av) 3568165648Spiso{ 3569165648Spiso char **av, *sep; /* Token separator. */ 3570165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3571165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3572165648Spiso int ac, i, space, lsnat; 3573165648Spiso struct cfg_redir *r; 3574165648Spiso struct cfg_spool *tmp; 3575165648Spiso 3576165648Spiso av = *_av; 3577165648Spiso ac = *_ac; 3578165648Spiso space = 0; 3579165648Spiso lsnat = 0; 3580165648Spiso if (len >= SOF_REDIR) { 3581165648Spiso r = (struct cfg_redir *)spool_buf; 3582165648Spiso /* Skip cfg_redir at beginning of buf. */ 3583165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3584165648Spiso space = SOF_REDIR; 3585165648Spiso len -= SOF_REDIR; 3586165648Spiso } else 3587165648Spiso goto nospace; 3588165648Spiso r->mode = REDIR_ADDR; 3589165648Spiso /* Extract local address. */ 3590165648Spiso if (ac == 0) 3591165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3592165648Spiso sep = strchr(*av, ','); 3593165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3594165648Spiso r->laddr.s_addr = INADDR_NONE; 3595165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3596165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3597165648Spiso lsnat = 1; 3598165648Spiso } else 3599165648Spiso StrToAddr(*av, &r->laddr); 3600165648Spiso INC_ARGCV(); 3601165648Spiso 3602165648Spiso /* Extract public address. */ 3603165648Spiso if (ac == 0) 3604165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3605165648Spiso StrToAddr(*av, &r->paddr); 3606165648Spiso INC_ARGCV(); 3607165648Spiso 3608165648Spiso /* Setup LSNAT server pool. */ 3609165648Spiso if (sep) { 3610165648Spiso sep = strtok(tmp_spool_buf, ","); 3611165648Spiso while (sep != NULL) { 3612165648Spiso tmp = (struct cfg_spool *)spool_buf; 3613165648Spiso if (len < SOF_SPOOL) 3614165648Spiso goto nospace; 3615165648Spiso len -= SOF_SPOOL; 3616165648Spiso space += SOF_SPOOL; 3617165648Spiso StrToAddr(sep, &tmp->addr); 3618165648Spiso tmp->port = ~0; 3619165648Spiso r->spool_cnt++; 3620165648Spiso /* Point to the next possible cfg_spool. */ 3621165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3622165648Spiso sep = strtok(NULL, ","); 3623165648Spiso } 3624165648Spiso } 3625165648Spiso return(space); 3626165648Spisonospace: 3627165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3628165648Spiso} 3629165648Spiso 3630165648Spisostatic int 3631165648Spisosetup_redir_port(char *spool_buf, int len, 3632165648Spiso int *_ac, char ***_av) 3633165648Spiso{ 3634165648Spiso char **av, *sep, *protoName; 3635165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3636165648Spiso int ac, space, lsnat; 3637165648Spiso struct cfg_redir *r; 3638165648Spiso struct cfg_spool *tmp; 3639165648Spiso u_short numLocalPorts; 3640165648Spiso port_range portRange; 3641165648Spiso 3642165648Spiso av = *_av; 3643165648Spiso ac = *_ac; 3644165648Spiso space = 0; 3645165648Spiso lsnat = 0; 3646165648Spiso numLocalPorts = 0; 3647165648Spiso 3648165648Spiso if (len >= SOF_REDIR) { 3649165648Spiso r = (struct cfg_redir *)spool_buf; 3650165648Spiso /* Skip cfg_redir at beginning of buf. */ 3651165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3652165648Spiso space = SOF_REDIR; 3653165648Spiso len -= SOF_REDIR; 3654165648Spiso } else 3655165648Spiso goto nospace; 3656165648Spiso r->mode = REDIR_PORT; 3657165648Spiso /* 3658165648Spiso * Extract protocol. 3659165648Spiso */ 3660165648Spiso if (ac == 0) 3661165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3662165648Spiso r->proto = StrToProto(*av); 3663165648Spiso protoName = *av; 3664165648Spiso INC_ARGCV(); 3665165648Spiso 3666165648Spiso /* 3667165648Spiso * Extract local address. 3668165648Spiso */ 3669165648Spiso if (ac == 0) 3670165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3671165648Spiso 3672165648Spiso sep = strchr(*av, ','); 3673165648Spiso /* LSNAT redirection syntax. */ 3674165648Spiso if (sep) { 3675165648Spiso r->laddr.s_addr = INADDR_NONE; 3676165648Spiso r->lport = ~0; 3677165648Spiso numLocalPorts = 1; 3678165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3679165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3680165648Spiso lsnat = 1; 3681165648Spiso } else { 3682165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3683165648Spiso &portRange) != 0) 3684165648Spiso errx(EX_DATAERR, "redirect_port:" 3685165648Spiso "invalid local port range"); 3686165648Spiso 3687165648Spiso r->lport = GETLOPORT(portRange); 3688165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3689165648Spiso } 3690165648Spiso INC_ARGCV(); 3691165648Spiso 3692165648Spiso /* 3693165648Spiso * Extract public port and optionally address. 3694165648Spiso */ 3695165648Spiso if (ac == 0) 3696165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3697165648Spiso 3698165648Spiso sep = strchr (*av, ':'); 3699165648Spiso if (sep) { 3700165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3701165648Spiso &portRange) != 0) 3702165648Spiso errx(EX_DATAERR, "redirect_port:" 3703165648Spiso "invalid public port range"); 3704165648Spiso } else { 3705165648Spiso r->paddr.s_addr = INADDR_ANY; 3706165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3707165648Spiso errx(EX_DATAERR, "redirect_port:" 3708165648Spiso "invalid public port range"); 3709165648Spiso } 3710165648Spiso 3711165648Spiso r->pport = GETLOPORT(portRange); 3712165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3713165648Spiso INC_ARGCV(); 3714165648Spiso 3715165648Spiso /* 3716165648Spiso * Extract remote address and optionally port. 3717165648Spiso */ 3718165648Spiso /* 3719165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3720165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3721165648Spiso */ 3722165648Spiso if (ac != 0 && !isalpha(**av)) { 3723165648Spiso sep = strchr (*av, ':'); 3724165648Spiso if (sep) { 3725165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3726165648Spiso &portRange) != 0) 3727165648Spiso errx(EX_DATAERR, "redirect_port:" 3728165648Spiso "invalid remote port range"); 3729165648Spiso } else { 3730165648Spiso SETLOPORT(portRange, 0); 3731165648Spiso SETNUMPORTS(portRange, 1); 3732165648Spiso StrToAddr (*av, &r->raddr); 3733165648Spiso } 3734165648Spiso INC_ARGCV(); 3735165648Spiso } else { 3736165648Spiso SETLOPORT(portRange, 0); 3737165648Spiso SETNUMPORTS(portRange, 1); 3738165648Spiso r->raddr.s_addr = INADDR_ANY; 3739165648Spiso } 3740165648Spiso r->rport = GETLOPORT(portRange); 3741165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3742165648Spiso 3743165648Spiso /* 3744165648Spiso * Make sure port ranges match up, then add the redirect ports. 3745165648Spiso */ 3746165648Spiso if (numLocalPorts != r->pport_cnt) 3747165648Spiso errx(EX_DATAERR, "redirect_port:" 3748165648Spiso "port ranges must be equal in size"); 3749165648Spiso 3750165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3751165648Spiso if (r->rport_cnt != numLocalPorts && 3752165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3753165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3754165648Spiso "be 0 or equal to local port range in size"); 3755165648Spiso 3756165648Spiso /* 3757165648Spiso * Setup LSNAT server pool. 3758165648Spiso */ 3759165648Spiso if (lsnat) { 3760165648Spiso sep = strtok(tmp_spool_buf, ","); 3761165648Spiso while (sep != NULL) { 3762165648Spiso tmp = (struct cfg_spool *)spool_buf; 3763165648Spiso if (len < SOF_SPOOL) 3764165648Spiso goto nospace; 3765165648Spiso len -= SOF_SPOOL; 3766165648Spiso space += SOF_SPOOL; 3767165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3768165648Spiso &portRange) != 0) 3769165648Spiso errx(EX_DATAERR, "redirect_port:" 3770165648Spiso "invalid local port range"); 3771165648Spiso if (GETNUMPORTS(portRange) != 1) 3772165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3773165648Spiso "must be single in this context"); 3774165648Spiso tmp->port = GETLOPORT(portRange); 3775165648Spiso r->spool_cnt++; 3776165648Spiso /* Point to the next possible cfg_spool. */ 3777165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3778165648Spiso sep = strtok(NULL, ","); 3779165648Spiso } 3780165648Spiso } 3781165648Spiso return (space); 3782165648Spisonospace: 3783165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3784165648Spiso} 3785165648Spiso 3786165648Spisostatic int 3787165648Spisosetup_redir_proto(char *spool_buf, int len, 3788165648Spiso int *_ac, char ***_av) 3789165648Spiso{ 3790165648Spiso char **av; 3791165648Spiso int ac, i, space; 3792165648Spiso struct protoent *protoent; 3793165648Spiso struct cfg_redir *r; 3794165648Spiso 3795165648Spiso av = *_av; 3796165648Spiso ac = *_ac; 3797165648Spiso if (len >= SOF_REDIR) { 3798165648Spiso r = (struct cfg_redir *)spool_buf; 3799165648Spiso /* Skip cfg_redir at beginning of buf. */ 3800165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3801165648Spiso space = SOF_REDIR; 3802165648Spiso len -= SOF_REDIR; 3803165648Spiso } else 3804165648Spiso goto nospace; 3805165648Spiso r->mode = REDIR_PROTO; 3806165648Spiso /* 3807165648Spiso * Extract protocol. 3808165648Spiso */ 3809165648Spiso if (ac == 0) 3810165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3811165648Spiso 3812165648Spiso protoent = getprotobyname(*av); 3813165648Spiso if (protoent == NULL) 3814165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3815165648Spiso else 3816165648Spiso r->proto = protoent->p_proto; 3817165648Spiso 3818165648Spiso INC_ARGCV(); 3819165648Spiso 3820165648Spiso /* 3821165648Spiso * Extract local address. 3822165648Spiso */ 3823165648Spiso if (ac == 0) 3824165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3825165648Spiso else 3826165648Spiso StrToAddr(*av, &r->laddr); 3827165648Spiso 3828165648Spiso INC_ARGCV(); 3829165648Spiso 3830165648Spiso /* 3831165648Spiso * Extract optional public address. 3832165648Spiso */ 3833165648Spiso if (ac == 0) { 3834165648Spiso r->paddr.s_addr = INADDR_ANY; 3835165648Spiso r->raddr.s_addr = INADDR_ANY; 3836165648Spiso } else { 3837165648Spiso /* see above in setup_redir_port() */ 3838165648Spiso if (!isalpha(**av)) { 3839165648Spiso StrToAddr(*av, &r->paddr); 3840165648Spiso INC_ARGCV(); 3841165648Spiso 3842165648Spiso /* 3843165648Spiso * Extract optional remote address. 3844165648Spiso */ 3845165648Spiso /* see above in setup_redir_port() */ 3846165648Spiso if (ac!=0 && !isalpha(**av)) { 3847165648Spiso StrToAddr(*av, &r->raddr); 3848165648Spiso INC_ARGCV(); 3849165648Spiso } 3850165648Spiso } 3851165648Spiso } 3852165648Spiso return (space); 3853165648Spisonospace: 3854165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3855165648Spiso} 3856165648Spiso 3857165648Spisostatic void 3858165648Spisoshow_nat(int ac, char **av); 3859165648Spiso 3860165648Spisostatic void 3861165648Spisoprint_nat_config(char *buf) { 3862165648Spiso struct cfg_nat *n; 3863165648Spiso int i, cnt, flag, off; 3864165648Spiso struct cfg_redir *t; 3865165648Spiso struct cfg_spool *s; 3866165648Spiso struct protoent *p; 3867165648Spiso 3868165648Spiso n = (struct cfg_nat *)buf; 3869165648Spiso flag = 1; 3870165648Spiso off = sizeof(*n); 3871165648Spiso printf("ipfw nat %u config", n->id); 3872165648Spiso if (strlen(n->if_name) != 0) 3873165648Spiso printf(" if %s", n->if_name); 3874165648Spiso else if (n->ip.s_addr != 0) 3875165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3876165648Spiso while (n->mode != 0) { 3877165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3878165648Spiso printf(" log"); 3879165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3880165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3881165648Spiso printf(" deny_in"); 3882165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3883165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3884165648Spiso printf(" same_ports"); 3885165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3886165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3887165648Spiso printf(" unreg_only"); 3888165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3889165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3890165648Spiso printf(" reset"); 3891165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3892165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3893165648Spiso printf(" reverse"); 3894165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3895165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3896165648Spiso printf(" proxy_only"); 3897165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3898165648Spiso } 3899165648Spiso } 3900165648Spiso /* Print all the redirect's data configuration. */ 3901165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3902165648Spiso t = (struct cfg_redir *)&buf[off]; 3903165648Spiso off += SOF_REDIR; 3904165648Spiso switch (t->mode) { 3905165648Spiso case REDIR_ADDR: 3906165648Spiso printf(" redirect_addr"); 3907165648Spiso if (t->spool_cnt == 0) 3908165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3909165648Spiso else 3910165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3911165648Spiso s = (struct cfg_spool *)&buf[off]; 3912165648Spiso if (i) 3913165648Spiso printf(","); 3914165648Spiso else 3915165648Spiso printf(" "); 3916165648Spiso printf("%s", inet_ntoa(s->addr)); 3917165648Spiso off += SOF_SPOOL; 3918165648Spiso } 3919165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3920165648Spiso break; 3921165648Spiso case REDIR_PORT: 3922165648Spiso p = getprotobynumber(t->proto); 3923165648Spiso printf(" redirect_port %s ", p->p_name); 3924165648Spiso if (!t->spool_cnt) { 3925165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3926165648Spiso if (t->pport_cnt > 1) 3927165648Spiso printf("-%u", t->lport + 3928165648Spiso t->pport_cnt - 1); 3929165648Spiso } else 3930165648Spiso for (i=0; i < t->spool_cnt; i++) { 3931165648Spiso s = (struct cfg_spool *)&buf[off]; 3932165648Spiso if (i) 3933165648Spiso printf(","); 3934165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3935165648Spiso s->port); 3936165648Spiso off += SOF_SPOOL; 3937165648Spiso } 3938165648Spiso 3939165648Spiso printf(" "); 3940165648Spiso if (t->paddr.s_addr) 3941165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3942165648Spiso printf("%u", t->pport); 3943165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3944165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3945165648Spiso 3946165648Spiso if (t->raddr.s_addr) { 3947165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3948165648Spiso if (t->rport) { 3949165648Spiso printf(":%u", t->rport); 3950165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3951165648Spiso printf("-%u", t->rport + 3952165648Spiso t->rport_cnt - 1); 3953165648Spiso } 3954165648Spiso } 3955165648Spiso break; 3956165648Spiso case REDIR_PROTO: 3957165648Spiso p = getprotobynumber(t->proto); 3958165648Spiso printf(" redirect_proto %s %s", p->p_name, 3959165648Spiso inet_ntoa(t->laddr)); 3960165648Spiso if (t->paddr.s_addr != 0) { 3961165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3962165648Spiso if (t->raddr.s_addr) 3963165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3964165648Spiso } 3965165648Spiso break; 3966165648Spiso default: 3967165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3968165648Spiso break; 3969165648Spiso } 3970165648Spiso } 3971165648Spiso printf("\n"); 3972165648Spiso} 3973165648Spiso 3974165648Spisostatic void 3975165648Spisoconfig_nat(int ac, char **av) 3976165648Spiso{ 3977165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3978165648Spiso struct in_addr ip; 3979165648Spiso int i, len, off, tok; 3980165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3981165648Spiso 3982165648Spiso len = NAT_BUF_LEN; 3983165648Spiso /* Offset in buf: save space for n at the beginning. */ 3984165648Spiso off = sizeof(*n); 3985165648Spiso memset(buf, 0, sizeof(buf)); 3986165648Spiso n = (struct cfg_nat *)buf; 3987165648Spiso 3988165648Spiso av++; ac--; 3989165648Spiso /* Nat id. */ 3990165648Spiso if (ac && isdigit(**av)) { 3991165648Spiso id = *av; 3992165648Spiso i = atoi(*av); 3993165648Spiso ac--; av++; 3994165648Spiso n->id = i; 3995165648Spiso } else 3996165648Spiso errx(EX_DATAERR, "missing nat id"); 3997165648Spiso if (ac == 0) 3998165648Spiso errx(EX_DATAERR, "missing option"); 3999165648Spiso 4000165648Spiso while (ac > 0) { 4001165648Spiso tok = match_token(nat_params, *av); 4002165648Spiso ac--; av++; 4003165648Spiso switch (tok) { 4004165648Spiso case TOK_IP: 4005165648Spiso if (ac == 0) 4006165648Spiso errx(EX_DATAERR, "missing option"); 4007165648Spiso if (!inet_aton(av[0], &(n->ip))) 4008165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 4009165648Spiso av[0]); 4010165648Spiso ac--; av++; 4011165648Spiso break; 4012165648Spiso case TOK_IF: 4013175511Smaxim if (ac == 0) 4014175511Smaxim errx(EX_DATAERR, "missing option"); 4015165648Spiso set_addr_dynamic(av[0], n); 4016165648Spiso ac--; av++; 4017165648Spiso break; 4018165648Spiso case TOK_ALOG: 4019165648Spiso n->mode |= PKT_ALIAS_LOG; 4020165648Spiso break; 4021165648Spiso case TOK_DENY_INC: 4022165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 4023165648Spiso break; 4024165648Spiso case TOK_SAME_PORTS: 4025165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 4026165648Spiso break; 4027165648Spiso case TOK_UNREG_ONLY: 4028165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 4029165648Spiso break; 4030165648Spiso case TOK_RESET_ADDR: 4031165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 4032165648Spiso break; 4033165648Spiso case TOK_ALIAS_REV: 4034165648Spiso n->mode |= PKT_ALIAS_REVERSE; 4035165648Spiso break; 4036165648Spiso case TOK_PROXY_ONLY: 4037165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 4038165648Spiso break; 4039165648Spiso /* 4040165648Spiso * All the setup_redir_* functions work directly in the final 4041165648Spiso * buffer, see above for details. 4042165648Spiso */ 4043165648Spiso case TOK_REDIR_ADDR: 4044165648Spiso case TOK_REDIR_PORT: 4045165648Spiso case TOK_REDIR_PROTO: 4046165648Spiso switch (tok) { 4047165648Spiso case TOK_REDIR_ADDR: 4048165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 4049165648Spiso break; 4050165648Spiso case TOK_REDIR_PORT: 4051165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 4052165648Spiso break; 4053165648Spiso case TOK_REDIR_PROTO: 4054165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 4055165648Spiso break; 4056165648Spiso } 4057165648Spiso n->redir_cnt++; 4058165648Spiso off += i; 4059165648Spiso len -= i; 4060165648Spiso break; 4061165648Spiso default: 4062165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 4063165648Spiso } 4064165648Spiso } 4065165648Spiso 4066165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 4067165648Spiso if (i) 4068165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 4069165648Spiso 4070165648Spiso /* After every modification, we show the resultant rule. */ 4071165648Spiso int _ac = 3; 4072165648Spiso char *_av[] = {"show", "config", id}; 4073165648Spiso show_nat(_ac, _av); 4074165648Spiso} 4075165648Spiso 4076165648Spisostatic void 407798943Sluigiconfig_pipe(int ac, char **av) 407898943Sluigi{ 4079117469Sluigi struct dn_pipe p; 408098943Sluigi int i; 408198943Sluigi char *end; 408298943Sluigi void *par = NULL; 408398943Sluigi 4084117469Sluigi memset(&p, 0, sizeof p); 408598943Sluigi 408698943Sluigi av++; ac--; 408798943Sluigi /* Pipe number */ 408898943Sluigi if (ac && isdigit(**av)) { 408998943Sluigi i = atoi(*av); av++; ac--; 409098943Sluigi if (do_pipe == 1) 4091117469Sluigi p.pipe_nr = i; 409298943Sluigi else 4093117469Sluigi p.fs.fs_nr = i; 409498943Sluigi } 409599475Sluigi while (ac > 0) { 409698943Sluigi double d; 409798943Sluigi int tok = match_token(dummynet_params, *av); 409898943Sluigi ac--; av++; 409998943Sluigi 410098943Sluigi switch(tok) { 4101101978Sluigi case TOK_NOERROR: 4102117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4103101978Sluigi break; 4104101978Sluigi 410598943Sluigi case TOK_PLR: 410698943Sluigi NEED1("plr needs argument 0..1\n"); 410798943Sluigi d = strtod(av[0], NULL); 410898943Sluigi if (d > 1) 410998943Sluigi d = 1; 411098943Sluigi else if (d < 0) 411198943Sluigi d = 0; 4112117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 411398943Sluigi ac--; av++; 411498943Sluigi break; 411598943Sluigi 411698943Sluigi case TOK_QUEUE: 411798943Sluigi NEED1("queue needs queue size\n"); 411898943Sluigi end = NULL; 4119117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 412098943Sluigi if (*end == 'K' || *end == 'k') { 4121117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4122117469Sluigi p.fs.qsize *= 1024; 4123140271Sbrooks } else if (*end == 'B' || 4124140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4125117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 412698943Sluigi } 412798943Sluigi ac--; av++; 412898943Sluigi break; 412998943Sluigi 413098943Sluigi case TOK_BUCKETS: 413198943Sluigi NEED1("buckets needs argument\n"); 4132117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 413398943Sluigi ac--; av++; 413498943Sluigi break; 413598943Sluigi 413698943Sluigi case TOK_MASK: 413798943Sluigi NEED1("mask needs mask specifier\n"); 413898943Sluigi /* 413998943Sluigi * per-flow queue, mask is dst_ip, dst_port, 414098943Sluigi * src_ip, src_port, proto measured in bits 414198943Sluigi */ 414298943Sluigi par = NULL; 414398943Sluigi 4144145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 414598943Sluigi end = NULL; 414698943Sluigi 414798943Sluigi while (ac >= 1) { 4148117328Sluigi uint32_t *p32 = NULL; 4149117328Sluigi uint16_t *p16 = NULL; 4150145246Sbrooks uint32_t *p20 = NULL; 4151145246Sbrooks struct in6_addr *pa6 = NULL; 4152145246Sbrooks uint32_t a; 415398943Sluigi 415498943Sluigi tok = match_token(dummynet_params, *av); 415598943Sluigi ac--; av++; 415698943Sluigi switch(tok) { 415798943Sluigi case TOK_ALL: 415898943Sluigi /* 415998943Sluigi * special case, all bits significant 416098943Sluigi */ 4161117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4162117469Sluigi p.fs.flow_mask.src_ip = ~0; 4163117469Sluigi p.fs.flow_mask.dst_port = ~0; 4164117469Sluigi p.fs.flow_mask.src_port = ~0; 4165117469Sluigi p.fs.flow_mask.proto = ~0; 4166145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4167145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4168145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4169117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 417098943Sluigi goto end_mask; 417198943Sluigi 417298943Sluigi case TOK_DSTIP: 4173117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 417498943Sluigi break; 417598943Sluigi 417698943Sluigi case TOK_SRCIP: 4177117469Sluigi p32 = &p.fs.flow_mask.src_ip; 417898943Sluigi break; 417998943Sluigi 4180145246Sbrooks case TOK_DSTIP6: 4181145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4182145246Sbrooks break; 4183145246Sbrooks 4184145246Sbrooks case TOK_SRCIP6: 4185145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4186145246Sbrooks break; 4187145246Sbrooks 4188145246Sbrooks case TOK_FLOWID: 4189145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4190145246Sbrooks break; 4191145246Sbrooks 419298943Sluigi case TOK_DSTPORT: 4193117469Sluigi p16 = &p.fs.flow_mask.dst_port; 419498943Sluigi break; 419598943Sluigi 419698943Sluigi case TOK_SRCPORT: 4197117469Sluigi p16 = &p.fs.flow_mask.src_port; 419898943Sluigi break; 419998943Sluigi 420098943Sluigi case TOK_PROTO: 420198943Sluigi break; 420298943Sluigi 420398943Sluigi default: 420498943Sluigi ac++; av--; /* backtrack */ 420598943Sluigi goto end_mask; 420698943Sluigi } 420798943Sluigi if (ac < 1) 420898943Sluigi errx(EX_USAGE, "mask: value missing"); 420998943Sluigi if (*av[0] == '/') { 421098943Sluigi a = strtoul(av[0]+1, &end, 0); 4211145246Sbrooks if (pa6 == NULL) 4212145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4213106505Smaxim } else 421499909Sluigi a = strtoul(av[0], &end, 0); 421598943Sluigi if (p32 != NULL) 421698943Sluigi *p32 = a; 421798943Sluigi else if (p16 != NULL) { 4218139821Sbrooks if (a > 0xFFFF) 421998943Sluigi errx(EX_DATAERR, 4220144687Sbrooks "port mask must be 16 bit"); 4221117328Sluigi *p16 = (uint16_t)a; 4222145246Sbrooks } else if (p20 != NULL) { 4223145246Sbrooks if (a > 0xfffff) 4224145246Sbrooks errx(EX_DATAERR, 4225145246Sbrooks "flow_id mask must be 20 bit"); 4226145246Sbrooks *p20 = (uint32_t)a; 4227145246Sbrooks } else if (pa6 != NULL) { 4228145246Sbrooks if (a < 0 || a > 128) 4229145246Sbrooks errx(EX_DATAERR, 4230145246Sbrooks "in6addr invalid mask len"); 4231145246Sbrooks else 4232145246Sbrooks n2mask(pa6, a); 423398943Sluigi } else { 4234139821Sbrooks if (a > 0xFF) 423598943Sluigi errx(EX_DATAERR, 4236144687Sbrooks "proto mask must be 8 bit"); 4237117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 423898943Sluigi } 423998943Sluigi if (a != 0) 4240117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 424198943Sluigi ac--; av++; 424298943Sluigi } /* end while, config masks */ 424398943Sluigiend_mask: 424498943Sluigi break; 424598943Sluigi 424698943Sluigi case TOK_RED: 424798943Sluigi case TOK_GRED: 424898943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4249117469Sluigi p.fs.flags_fs |= DN_IS_RED; 425098943Sluigi if (tok == TOK_GRED) 4251117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 425298943Sluigi /* 425398943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 425498943Sluigi */ 425598943Sluigi if ((end = strsep(&av[0], "/"))) { 425698943Sluigi double w_q = strtod(end, NULL); 425798943Sluigi if (w_q > 1 || w_q <= 0) 425898943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4259117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 426098943Sluigi } 426198943Sluigi if ((end = strsep(&av[0], "/"))) { 4262117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 426398943Sluigi if (*end == 'K' || *end == 'k') 4264117469Sluigi p.fs.min_th *= 1024; 426598943Sluigi } 426698943Sluigi if ((end = strsep(&av[0], "/"))) { 4267117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 426898943Sluigi if (*end == 'K' || *end == 'k') 4269117469Sluigi p.fs.max_th *= 1024; 427098943Sluigi } 427198943Sluigi if ((end = strsep(&av[0], "/"))) { 427298943Sluigi double max_p = strtod(end, NULL); 427398943Sluigi if (max_p > 1 || max_p <= 0) 427498943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4275117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 427698943Sluigi } 427798943Sluigi ac--; av++; 427898943Sluigi break; 427998943Sluigi 428098943Sluigi case TOK_DROPTAIL: 4281117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 428298943Sluigi break; 4283106505Smaxim 428498943Sluigi case TOK_BW: 428598943Sluigi NEED1("bw needs bandwidth or interface\n"); 428698943Sluigi if (do_pipe != 1) 428798943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 428898943Sluigi /* 428998943Sluigi * set clocking interface or bandwidth value 429098943Sluigi */ 429198943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4292117469Sluigi int l = sizeof(p.if_name)-1; 429398943Sluigi /* interface name */ 4294117469Sluigi strncpy(p.if_name, av[0], l); 4295117469Sluigi p.if_name[l] = '\0'; 4296117469Sluigi p.bandwidth = 0; 429798943Sluigi } else { 4298117469Sluigi p.if_name[0] = '\0'; 4299117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 430098943Sluigi if (*end == 'K' || *end == 'k') { 430198943Sluigi end++; 4302117469Sluigi p.bandwidth *= 1000; 430398943Sluigi } else if (*end == 'M') { 430498943Sluigi end++; 4305117469Sluigi p.bandwidth *= 1000000; 430698943Sluigi } 4307161550Sdwmalone if ((*end == 'B' && 4308161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4309140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4310117469Sluigi p.bandwidth *= 8; 4311117469Sluigi if (p.bandwidth < 0) 431298943Sluigi errx(EX_DATAERR, "bandwidth too large"); 431398943Sluigi } 431498943Sluigi ac--; av++; 431598943Sluigi break; 431698943Sluigi 431798943Sluigi case TOK_DELAY: 431898943Sluigi if (do_pipe != 1) 431998943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 432098943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4321117469Sluigi p.delay = strtoul(av[0], NULL, 0); 432298943Sluigi ac--; av++; 432398943Sluigi break; 432498943Sluigi 432598943Sluigi case TOK_WEIGHT: 432698943Sluigi if (do_pipe == 1) 432798943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 432898943Sluigi NEED1("weight needs argument 0..100\n"); 4329117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 433098943Sluigi ac--; av++; 433198943Sluigi break; 433298943Sluigi 433398943Sluigi case TOK_PIPE: 433498943Sluigi if (do_pipe == 1) 433598943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 433698943Sluigi NEED1("pipe needs pipe_number\n"); 4337117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 433898943Sluigi ac--; av++; 433998943Sluigi break; 434098943Sluigi 434198943Sluigi default: 4342124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 434398943Sluigi } 434498943Sluigi } 434598943Sluigi if (do_pipe == 1) { 4346117469Sluigi if (p.pipe_nr == 0) 434798943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4348117469Sluigi if (p.delay > 10000) 434998943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 435098943Sluigi } else { /* do_pipe == 2, queue */ 4351117469Sluigi if (p.fs.parent_nr == 0) 435298943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4353117469Sluigi if (p.fs.weight >100) 435498943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 435598943Sluigi } 4356117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4357176626Sdwmalone size_t len; 4358176626Sdwmalone long limit; 4359176626Sdwmalone 4360176626Sdwmalone len = sizeof(limit); 4361176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit", 4362176626Sdwmalone &limit, &len, NULL, 0) == -1) 4363176626Sdwmalone limit = 1024*1024; 4364176626Sdwmalone if (p.fs.qsize > limit) 4365176626Sdwmalone errx(EX_DATAERR, "queue size must be < %ldB", limit); 436698943Sluigi } else { 4367176626Sdwmalone size_t len; 4368176626Sdwmalone long limit; 4369176626Sdwmalone 4370176626Sdwmalone len = sizeof(limit); 4371176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit", 4372176626Sdwmalone &limit, &len, NULL, 0) == -1) 4373176626Sdwmalone limit = 100; 4374176626Sdwmalone if (p.fs.qsize > limit) 4375176626Sdwmalone errx(EX_DATAERR, "2 <= queue size <= %ld", limit); 437698943Sluigi } 4377117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 437898943Sluigi size_t len; 437998943Sluigi int lookup_depth, avg_pkt_size; 438098943Sluigi double s, idle, weight, w_q; 4381117469Sluigi struct clockinfo ck; 438298943Sluigi int t; 438398943Sluigi 4384117469Sluigi if (p.fs.min_th >= p.fs.max_th) 438598943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4386117469Sluigi p.fs.min_th, p.fs.max_th); 4387117469Sluigi if (p.fs.max_th == 0) 438898943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 438998943Sluigi 439098943Sluigi len = sizeof(int); 439198943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 439298943Sluigi &lookup_depth, &len, NULL, 0) == -1) 439398943Sluigi errx(1, "sysctlbyname(\"%s\")", 439498943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 439598943Sluigi if (lookup_depth == 0) 439698943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 439798943Sluigi " must be greater than zero"); 439898943Sluigi 439998943Sluigi len = sizeof(int); 440098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 440198943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 440298943Sluigi 440398943Sluigi errx(1, "sysctlbyname(\"%s\")", 440498943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 440598943Sluigi if (avg_pkt_size == 0) 440698943Sluigi errx(EX_DATAERR, 440798943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 440898943Sluigi " be greater than zero"); 440998943Sluigi 441098943Sluigi len = sizeof(struct clockinfo); 4411117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 441298943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 441398943Sluigi 441498943Sluigi /* 441598943Sluigi * Ticks needed for sending a medium-sized packet. 441698943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 441798943Sluigi * do not have bandwidth information, because that is stored 441898943Sluigi * in the parent pipe, and also we have multiple queues 441998943Sluigi * competing for it. So we set s=0, which is not very 442098943Sluigi * correct. But on the other hand, why do we want RED with 442198943Sluigi * WF2Q+ ? 442298943Sluigi */ 4423117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 442498943Sluigi s = 0; 442598943Sluigi else 4426174713Soleg s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth; 442798943Sluigi 442898943Sluigi /* 442998943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 443098943Sluigi * NOTA: (3/w_q) is approx the value x so that 443198943Sluigi * (1-w_q)^x < 10^-3. 443298943Sluigi */ 4433117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 443498943Sluigi idle = s * 3. / w_q; 4435117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4436117469Sluigi if (!p.fs.lookup_step) 4437117469Sluigi p.fs.lookup_step = 1; 443898943Sluigi weight = 1 - w_q; 4439174713Soleg for (t = p.fs.lookup_step; t > 1; --t) 4440174713Soleg weight *= 1 - w_q; 4441117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 444298943Sluigi } 4443117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 444498943Sluigi if (i) 444598943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 444698943Sluigi} 444798943Sluigi 444898943Sluigistatic void 4449169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 445098943Sluigi{ 445198943Sluigi int i, l; 4452169424Smaxim char *ap, *ptr, *optr; 4453169424Smaxim struct ether_addr *mac; 4454169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 445598943Sluigi 4456169424Smaxim if (strcmp(p, "any") == 0) { 4457169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4458169424Smaxim addr[i] = mask[i] = 0; 445998943Sluigi return; 4460169424Smaxim } 446198943Sluigi 4462169424Smaxim optr = ptr = strdup(p); 4463169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4464169424Smaxim l = strlen(ap); 4465169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4466169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4467169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4468169424Smaxim } else 4469169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4470169424Smaxim 4471169424Smaxim if (ptr != NULL) { /* we have mask? */ 4472169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4473169424Smaxim l = strtol(ptr, &ap, 10); 4474169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4475169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4476169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4477169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4478169424Smaxim } else { /* mask */ 4479169424Smaxim l = strlen(ptr); 4480169424Smaxim if (strspn(ptr, macset) != l || 4481169424Smaxim (mac = ether_aton(ptr)) == NULL) 4482169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4483169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 448498943Sluigi } 4485169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4486169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 448798943Sluigi mask[i] = 0xff; 448898943Sluigi } 4489169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 449098943Sluigi addr[i] &= mask[i]; 4491169424Smaxim 4492169424Smaxim free(optr); 449398943Sluigi} 449498943Sluigi 449598943Sluigi/* 449698943Sluigi * helper function, updates the pointer to cmd with the length 449798943Sluigi * of the current command, and also cleans up the first word of 449898943Sluigi * the new command in case it has been clobbered before. 449998943Sluigi */ 450098943Sluigistatic ipfw_insn * 450198943Sluiginext_cmd(ipfw_insn *cmd) 450298943Sluigi{ 450398943Sluigi cmd += F_LEN(cmd); 450498943Sluigi bzero(cmd, sizeof(*cmd)); 450598943Sluigi return cmd; 450698943Sluigi} 450798943Sluigi 450898943Sluigi/* 4509117469Sluigi * Takes arguments and copies them into a comment 4510117469Sluigi */ 4511117469Sluigistatic void 4512117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4513117469Sluigi{ 4514117469Sluigi int i, l; 4515117469Sluigi char *p = (char *)(cmd + 1); 4516117577Sluigi 4517117469Sluigi cmd->opcode = O_NOP; 4518117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4519117469Sluigi 4520117469Sluigi /* Compute length of comment string. */ 4521117469Sluigi for (i = 0, l = 0; i < ac; i++) 4522117469Sluigi l += strlen(av[i]) + 1; 4523117469Sluigi if (l == 0) 4524117469Sluigi return; 4525117469Sluigi if (l > 84) 4526117469Sluigi errx(EX_DATAERR, 4527117469Sluigi "comment too long (max 80 chars)"); 4528117469Sluigi l = 1 + (l+3)/4; 4529117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4530117469Sluigi for (i = 0; i < ac; i++) { 4531117469Sluigi strcpy(p, av[i]); 4532117469Sluigi p += strlen(av[i]); 4533117469Sluigi *p++ = ' '; 4534117469Sluigi } 4535117469Sluigi *(--p) = '\0'; 4536117469Sluigi} 4537117577Sluigi 4538117469Sluigi/* 453998943Sluigi * A function to fill simple commands of size 1. 454098943Sluigi * Existing flags are preserved. 454198943Sluigi */ 454298943Sluigistatic void 4543117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 454498943Sluigi{ 454598943Sluigi cmd->opcode = opcode; 454698943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 454798943Sluigi cmd->arg1 = arg; 454898943Sluigi} 454998943Sluigi 455098943Sluigi/* 455198943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 455298943Sluigi * two microinstructions, and returns the pointer to the last one. 455398943Sluigi */ 455498943Sluigistatic ipfw_insn * 455598943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 455698943Sluigi{ 4557102087Sluigi ipfw_insn_mac *mac; 455898943Sluigi 4559102087Sluigi if (ac < 2) 4560102098Sluigi errx(EX_DATAERR, "MAC dst src"); 456198943Sluigi 456298943Sluigi cmd->opcode = O_MACADDR2; 456398943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 456498943Sluigi 456598943Sluigi mac = (ipfw_insn_mac *)cmd; 4566101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4567169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4568169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4569102087Sluigi return cmd; 4570102087Sluigi} 457198943Sluigi 4572102087Sluigistatic ipfw_insn * 4573102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4574102087Sluigi{ 4575102087Sluigi if (ac < 1) 4576102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4577102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4578102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 457998943Sluigi cmd->opcode = O_MAC_TYPE; 4580102087Sluigi return cmd; 4581102087Sluigi } else 4582102087Sluigi return NULL; 4583102087Sluigi} 458498943Sluigi 4585102087Sluigistatic ipfw_insn * 4586152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4587102087Sluigi{ 4588102087Sluigi struct protoent *pe; 4589152923Sume char *ep; 4590152923Sume int proto; 4591102087Sluigi 4592156315Sume proto = strtol(av, &ep, 10); 4593156315Sume if (*ep != '\0' || proto <= 0) { 4594152923Sume if ((pe = getprotobyname(av)) == NULL) 4595152923Sume return NULL; 4596152923Sume proto = pe->p_proto; 4597152923Sume } 4598145246Sbrooks 4599152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4600152923Sume *protop = proto; 4601152923Sume return cmd; 4602152923Sume} 4603152923Sume 4604152923Sumestatic ipfw_insn * 4605152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4606152923Sume{ 4607152923Sume u_char proto = IPPROTO_IP; 4608152923Sume 4609156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4610146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4611152923Sume else if (strcmp(av, "ip4") == 0) 4612152923Sume /* explicit "just IPv4" rule */ 4613152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4614152923Sume else if (strcmp(av, "ip6") == 0) { 4615152923Sume /* explicit "just IPv6" rule */ 4616152923Sume proto = IPPROTO_IPV6; 4617152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4618152923Sume } else 4619152923Sume return add_proto0(cmd, av, protop); 4620152923Sume 4621152923Sume *protop = proto; 4622152923Sume return cmd; 4623152923Sume} 4624152923Sume 4625152923Sumestatic ipfw_insn * 4626152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4627152923Sume{ 4628152923Sume u_char proto = IPPROTO_IP; 4629152923Sume 4630152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4631152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4632146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4633146894Smlaier /* explicit "just IPv4" rule */ 4634146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4635146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4636146894Smlaier /* explicit "just IPv6" rule */ 4637152923Sume proto = IPPROTO_IPV6; 4638146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4639152923Sume } else 4640152923Sume return add_proto0(cmd, av, protop); 4641145246Sbrooks 4642152923Sume *protop = proto; 464398943Sluigi return cmd; 464498943Sluigi} 464598943Sluigi 4646102087Sluigistatic ipfw_insn * 4647102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4648102087Sluigi{ 4649102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4650102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4651102087Sluigi cmd->opcode = O_IP_SRC_SET; 4652130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4653130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4654102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4655102087Sluigi cmd->opcode = O_IP_SRC_ME; 4656102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4657102087Sluigi cmd->opcode = O_IP_SRC; 4658117328Sluigi else /* addr/mask */ 4659102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4660102087Sluigi return cmd; 4661102087Sluigi} 4662102087Sluigi 4663102087Sluigistatic ipfw_insn * 4664102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4665102087Sluigi{ 4666102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4667102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4668102087Sluigi ; 4669130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4670130281Sru ; 4671102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4672102087Sluigi cmd->opcode = O_IP_DST_ME; 4673102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4674102087Sluigi cmd->opcode = O_IP_DST; 4675117328Sluigi else /* addr/mask */ 4676102087Sluigi cmd->opcode = O_IP_DST_MASK; 4677102087Sluigi return cmd; 4678102087Sluigi} 4679102087Sluigi 4680102087Sluigistatic ipfw_insn * 4681102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4682102087Sluigi{ 4683140271Sbrooks if (_substrcmp(av, "any") == 0) { 4684102087Sluigi return NULL; 4685102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4686102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4687102087Sluigi cmd->opcode = opcode; 4688102087Sluigi return cmd; 4689102087Sluigi } 4690102087Sluigi return NULL; 4691102087Sluigi} 4692102087Sluigi 4693145246Sbrooksstatic ipfw_insn * 4694145246Sbrooksadd_src(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_srcip6(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_srcip(cmd, av); 4712161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4713158553Smlaier ret = cmd; 4714145246Sbrooks 4715158553Smlaier free(host); 4716158553Smlaier return ret; 4717145246Sbrooks} 4718145246Sbrooks 4719145246Sbrooksstatic ipfw_insn * 4720145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4721145246Sbrooks{ 4722145246Sbrooks struct in6_addr a; 4723158553Smlaier char *host, *ch; 4724158553Smlaier ipfw_insn *ret = NULL; 4725145246Sbrooks 4726158553Smlaier if ((host = strdup(av)) == NULL) 4727158553Smlaier return NULL; 4728158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4729158553Smlaier *ch = '\0'; 4730158553Smlaier 4731145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4732158553Smlaier inet_pton(AF_INET6, host, &a)) 4733158553Smlaier ret = add_dstip6(cmd, av); 4734145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4735161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4736161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4737158553Smlaier ret = add_dstip(cmd, av); 4738161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4739158553Smlaier ret = cmd; 4740145246Sbrooks 4741158553Smlaier free(host); 4742158553Smlaier return ret; 4743145246Sbrooks} 4744145246Sbrooks 474598943Sluigi/* 474698943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 474798943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 474898943Sluigi * into the actual rule. 474998943Sluigi * 4750136071Sgreen * The syntax for a rule starts with the action, followed by 4751136071Sgreen * optional action parameters, and the various match patterns. 4752108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 475398943Sluigi * (generated if the rule includes a keep-state option), then the 4754136071Sgreen * various match patterns, log/altq actions, and the actual action. 4755106505Smaxim * 475698943Sluigi */ 475798943Sluigistatic void 475898943Sluigiadd(int ac, char *av[]) 475998943Sluigi{ 476098943Sluigi /* 476198943Sluigi * rules are added into the 'rulebuf' and then copied in 476298943Sluigi * the correct order into the actual rule. 476398943Sluigi * Some things that need to go out of order (prob, action etc.) 476498943Sluigi * go into actbuf[]. 476598943Sluigi */ 4766117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 476798943Sluigi 4768117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4769102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 477098943Sluigi 477198943Sluigi struct ip_fw *rule; 477298943Sluigi 477398943Sluigi /* 477498943Sluigi * various flags used to record that we entered some fields. 477598943Sluigi */ 4776101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4777158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4778134475Smaxim size_t len; 477998943Sluigi 478098943Sluigi int i; 478198943Sluigi 478298943Sluigi int open_par = 0; /* open parenthesis ( */ 478398943Sluigi 478498943Sluigi /* proto is here because it is used to fetch ports */ 478598943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 478698943Sluigi 4787107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4788107289Sluigi 478998943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 479098943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 479198943Sluigi bzero(rulebuf, sizeof(rulebuf)); 479298943Sluigi 479398943Sluigi rule = (struct ip_fw *)rulebuf; 479498943Sluigi cmd = (ipfw_insn *)cmdbuf; 479598943Sluigi action = (ipfw_insn *)actbuf; 479698943Sluigi 479798943Sluigi av++; ac--; 479898943Sluigi 479998943Sluigi /* [rule N] -- Rule number optional */ 480098943Sluigi if (ac && isdigit(**av)) { 480198943Sluigi rule->rulenum = atoi(*av); 480298943Sluigi av++; 480398943Sluigi ac--; 480498943Sluigi } 480598943Sluigi 4806117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4807140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4808101628Sluigi int set = strtoul(av[1], NULL, 10); 4809117655Sluigi if (set < 0 || set > RESVD_SET) 4810101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4811101628Sluigi rule->set = set; 4812101628Sluigi av += 2; ac -= 2; 4813101628Sluigi } 4814101628Sluigi 481598943Sluigi /* [prob D] -- match probability, optional */ 4816140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4817107289Sluigi match_prob = strtod(av[1], NULL); 481898943Sluigi 4819107289Sluigi if (match_prob <= 0 || match_prob > 1) 482098943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 482198943Sluigi av += 2; ac -= 2; 482298943Sluigi } 482398943Sluigi 482498943Sluigi /* action -- mandatory */ 482598943Sluigi NEED1("missing action"); 482698943Sluigi i = match_token(rule_actions, *av); 482798943Sluigi ac--; av++; 482898943Sluigi action->len = 1; /* default */ 482998943Sluigi switch(i) { 483098943Sluigi case TOK_CHECKSTATE: 4831101116Sluigi have_state = action; 483298943Sluigi action->opcode = O_CHECK_STATE; 483398943Sluigi break; 483498943Sluigi 483598943Sluigi case TOK_ACCEPT: 483698943Sluigi action->opcode = O_ACCEPT; 483798943Sluigi break; 483898943Sluigi 483998943Sluigi case TOK_DENY: 484098943Sluigi action->opcode = O_DENY; 484199475Sluigi action->arg1 = 0; 484298943Sluigi break; 484398943Sluigi 484499475Sluigi case TOK_REJECT: 484599475Sluigi action->opcode = O_REJECT; 484699475Sluigi action->arg1 = ICMP_UNREACH_HOST; 484799475Sluigi break; 484899475Sluigi 484999475Sluigi case TOK_RESET: 485099475Sluigi action->opcode = O_REJECT; 485199475Sluigi action->arg1 = ICMP_REJECT_RST; 485299475Sluigi break; 485399475Sluigi 4854149020Sbz case TOK_RESET6: 4855149020Sbz action->opcode = O_UNREACH6; 4856149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4857149020Sbz break; 4858149020Sbz 485999475Sluigi case TOK_UNREACH: 486099475Sluigi action->opcode = O_REJECT; 486199475Sluigi NEED1("missing reject code"); 486299475Sluigi fill_reject_code(&action->arg1, *av); 486399475Sluigi ac--; av++; 486499475Sluigi break; 486599475Sluigi 4866149020Sbz case TOK_UNREACH6: 4867149020Sbz action->opcode = O_UNREACH6; 4868149020Sbz NEED1("missing unreach code"); 4869149020Sbz fill_unreach6_code(&action->arg1, *av); 4870149020Sbz ac--; av++; 4871149020Sbz break; 4872149020Sbz 487398943Sluigi case TOK_COUNT: 487498943Sluigi action->opcode = O_COUNT; 487598943Sluigi break; 487698943Sluigi 4877176517Spiso case TOK_NAT: 4878176517Spiso action->opcode = O_NAT; 4879176517Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4880176517Spiso goto chkarg; 4881178888Sjulian 488298943Sluigi case TOK_QUEUE: 4883153374Sglebius action->opcode = O_QUEUE; 4884153374Sglebius goto chkarg; 488598943Sluigi case TOK_PIPE: 4886153374Sglebius action->opcode = O_PIPE; 4887153374Sglebius goto chkarg; 488898943Sluigi case TOK_SKIPTO: 4889153374Sglebius action->opcode = O_SKIPTO; 4890153374Sglebius goto chkarg; 4891153374Sglebius case TOK_NETGRAPH: 4892153374Sglebius action->opcode = O_NETGRAPH; 4893153374Sglebius goto chkarg; 4894153374Sglebius case TOK_NGTEE: 4895153374Sglebius action->opcode = O_NGTEE; 4896153374Sglebius goto chkarg; 489798943Sluigi case TOK_DIVERT: 4898153374Sglebius action->opcode = O_DIVERT; 4899153374Sglebius goto chkarg; 490098943Sluigi case TOK_TEE: 4901153374Sglebius action->opcode = O_TEE; 4902153374Sglebiuschkarg: 4903153374Sglebius if (!ac) 4904153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4905153374Sglebius if (isdigit(**av)) { 4906153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4907153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4908153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4909153374Sglebius *(av - 1)); 4910153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 4911153374Sglebius action->arg1 = IP_FW_TABLEARG; 4912153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 491398943Sluigi struct servent *s; 491498943Sluigi setservent(1); 491598943Sluigi s = getservbyname(av[0], "divert"); 491698943Sluigi if (s != NULL) 491798943Sluigi action->arg1 = ntohs(s->s_port); 491898943Sluigi else 491998943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4920153374Sglebius } else 4921153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 492298943Sluigi ac--; av++; 492398943Sluigi break; 492498943Sluigi 492598943Sluigi case TOK_FORWARD: { 492698943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 492798943Sluigi char *s, *end; 492898943Sluigi 492998943Sluigi NEED1("missing forward address[:port]"); 493098943Sluigi 493198943Sluigi action->opcode = O_FORWARD_IP; 493298943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 493398943Sluigi 493498943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 493598943Sluigi p->sa.sin_family = AF_INET; 493698943Sluigi p->sa.sin_port = 0; 493798943Sluigi /* 493898943Sluigi * locate the address-port separator (':' or ',') 493998943Sluigi */ 494098943Sluigi s = strchr(*av, ':'); 494198943Sluigi if (s == NULL) 494298943Sluigi s = strchr(*av, ','); 494398943Sluigi if (s != NULL) { 494498943Sluigi *(s++) = '\0'; 494598943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 494698943Sluigi if (s == end) 494798943Sluigi errx(EX_DATAERR, 494898943Sluigi "illegal forwarding port ``%s''", s); 4949103241Sluigi p->sa.sin_port = (u_short)i; 495098943Sluigi } 4951161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4952161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4953161456Sjulian else 4954161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 495598943Sluigi ac--; av++; 495698943Sluigi break; 4957161424Sjulian } 4958117469Sluigi case TOK_COMMENT: 4959117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4960117469Sluigi action->opcode = O_COUNT; 4961117469Sluigi ac++; av--; /* go back... */ 4962117469Sluigi break; 4963178888Sjulian 4964178888Sjulian case TOK_SETFIB: 4965178888Sjulian { 4966178888Sjulian int numfibs; 4967178916Sjulian size_t intsize = sizeof(int); 4968178888Sjulian 4969178888Sjulian action->opcode = O_SETFIB; 4970178888Sjulian NEED1("missing fib number"); 4971178888Sjulian action->arg1 = strtoul(*av, NULL, 10); 4972178916Sjulian if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 4973178888Sjulian errx(EX_DATAERR, "fibs not suported.\n"); 4974178888Sjulian if (action->arg1 >= numfibs) /* Temporary */ 4975178888Sjulian errx(EX_DATAERR, "fib too large.\n"); 4976178888Sjulian ac--; av++; 4977178888Sjulian break; 4978178888Sjulian } 4979165648Spiso 498098943Sluigi default: 4981102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 498298943Sluigi } 498398943Sluigi action = next_cmd(action); 498498943Sluigi 498598943Sluigi /* 4986136071Sgreen * [altq queuename] -- altq tag, optional 498798943Sluigi * [log [logamount N]] -- log, optional 498898943Sluigi * 4989136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 499098943Sluigi * skipped in the copy section to the end of the buffer. 499198943Sluigi */ 4992136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4993136071Sgreen ac--; av++; 4994136071Sgreen switch (i) { 4995136071Sgreen case TOK_LOG: 4996136071Sgreen { 4997136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4998136071Sgreen int l; 499998943Sluigi 5000136071Sgreen if (have_log) 5001136071Sgreen errx(EX_DATAERR, 5002136071Sgreen "log cannot be specified more than once"); 5003136071Sgreen have_log = (ipfw_insn *)c; 5004136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 5005136071Sgreen cmd->opcode = O_LOG; 5006140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 5007136071Sgreen ac--; av++; 5008136071Sgreen NEED1("logamount requires argument"); 5009136071Sgreen l = atoi(*av); 5010136071Sgreen if (l < 0) 5011136071Sgreen errx(EX_DATAERR, 5012136071Sgreen "logamount must be positive"); 5013136071Sgreen c->max_log = l; 5014136071Sgreen ac--; av++; 5015136071Sgreen } else { 5016136071Sgreen len = sizeof(c->max_log); 5017136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 5018136071Sgreen &c->max_log, &len, NULL, 0) == -1) 5019136071Sgreen errx(1, "sysctlbyname(\"%s\")", 5020136071Sgreen "net.inet.ip.fw.verbose_limit"); 5021136071Sgreen } 5022136071Sgreen } 5023136071Sgreen break; 5024136071Sgreen 5025136071Sgreen case TOK_ALTQ: 5026136071Sgreen { 5027136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 5028136071Sgreen 5029136071Sgreen NEED1("missing altq queue name"); 5030136071Sgreen if (have_altq) 5031136071Sgreen errx(EX_DATAERR, 5032136071Sgreen "altq cannot be specified more than once"); 5033136071Sgreen have_altq = (ipfw_insn *)a; 5034136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 5035136071Sgreen cmd->opcode = O_ALTQ; 5036136071Sgreen fill_altq_qid(&a->qid, *av); 503798943Sluigi ac--; av++; 5038136071Sgreen } 5039136071Sgreen break; 5040136071Sgreen 5041158879Soleg case TOK_TAG: 5042159636Soleg case TOK_UNTAG: { 5043159636Soleg uint16_t tag; 5044159636Soleg 5045158879Soleg if (have_tag) 5046159636Soleg errx(EX_USAGE, "tag and untag cannot be " 5047159636Soleg "specified more than once"); 5048159636Soleg GET_UINT_ARG(tag, 1, 65534, i, rule_action_params); 5049158879Soleg have_tag = cmd; 5050159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 5051158879Soleg ac--; av++; 5052158879Soleg break; 5053159636Soleg } 5054158879Soleg 5055136071Sgreen default: 5056136071Sgreen abort(); 505798943Sluigi } 505898943Sluigi cmd = next_cmd(cmd); 505998943Sluigi } 506098943Sluigi 5061101116Sluigi if (have_state) /* must be a check-state, we are done */ 506298943Sluigi goto done; 506398943Sluigi 506498943Sluigi#define OR_START(target) \ 506598943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 506698943Sluigi if (open_par) \ 506798943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 5068101641Sluigi prev = NULL; \ 506998943Sluigi open_par = 1; \ 507098943Sluigi if ( (av[0])[1] == '\0') { \ 507198943Sluigi ac--; av++; \ 507298943Sluigi } else \ 507398943Sluigi (*av)++; \ 507498943Sluigi } \ 507598943Sluigi target: \ 507698943Sluigi 507798943Sluigi 507898943Sluigi#define CLOSE_PAR \ 507998943Sluigi if (open_par) { \ 508098943Sluigi if (ac && ( \ 5081140271Sbrooks strcmp(*av, ")") == 0 || \ 5082140271Sbrooks strcmp(*av, "}") == 0)) { \ 5083101641Sluigi prev = NULL; \ 508498943Sluigi open_par = 0; \ 508598943Sluigi ac--; av++; \ 508698943Sluigi } else \ 508798943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 508898943Sluigi } 5089106505Smaxim 509098943Sluigi#define NOT_BLOCK \ 5091140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 509298943Sluigi if (cmd->len & F_NOT) \ 509398943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 509498943Sluigi cmd->len |= F_NOT; \ 509598943Sluigi ac--; av++; \ 509698943Sluigi } 509798943Sluigi 509898943Sluigi#define OR_BLOCK(target) \ 5099140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 510098943Sluigi if (prev == NULL || open_par == 0) \ 510198943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 510298943Sluigi prev->len |= F_OR; \ 510398943Sluigi ac--; av++; \ 510498943Sluigi goto target; \ 510598943Sluigi } \ 510698943Sluigi CLOSE_PAR; 510798943Sluigi 5108102087Sluigi first_cmd = cmd; 5109102098Sluigi 5110102098Sluigi#if 0 511198943Sluigi /* 5112102087Sluigi * MAC addresses, optional. 5113102087Sluigi * If we have this, we skip the part "proto from src to dst" 5114102087Sluigi * and jump straight to the option parsing. 5115102087Sluigi */ 5116102087Sluigi NOT_BLOCK; 5117102087Sluigi NEED1("missing protocol"); 5118140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5119140271Sbrooks _substrcmp(*av, "mac") == 0) { 5120102087Sluigi ac--; av++; /* the "MAC" keyword */ 5121102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5122102087Sluigi cmd = next_cmd(cmd); 5123102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5124102087Sluigi NOT_BLOCK; 5125102087Sluigi NEED1("missing mac type"); 5126102087Sluigi if (add_mactype(cmd, ac, av[0])) 5127102087Sluigi cmd = next_cmd(cmd); 5128102087Sluigi ac--; av++; /* any or mac-type */ 5129102087Sluigi goto read_options; 5130102087Sluigi } 5131102098Sluigi#endif 5132102087Sluigi 5133102087Sluigi /* 513498943Sluigi * protocol, mandatory 513598943Sluigi */ 513698943Sluigi OR_START(get_proto); 513798943Sluigi NOT_BLOCK; 513898943Sluigi NEED1("missing protocol"); 5139152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5140102087Sluigi av++; ac--; 5141147105Smlaier if (F_LEN(cmd) != 0) { 5142102087Sluigi prev = cmd; 5143102087Sluigi cmd = next_cmd(cmd); 5144102087Sluigi } 5145102098Sluigi } else if (first_cmd != cmd) { 5146116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5147102098Sluigi } else 5148102098Sluigi goto read_options; 514998943Sluigi OR_BLOCK(get_proto); 515098943Sluigi 515198943Sluigi /* 5152102087Sluigi * "from", mandatory 515398943Sluigi */ 5154140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 515598943Sluigi errx(EX_USAGE, "missing ``from''"); 515698943Sluigi ac--; av++; 515798943Sluigi 515898943Sluigi /* 515998943Sluigi * source IP, mandatory 516098943Sluigi */ 516198943Sluigi OR_START(source_ip); 516298943Sluigi NOT_BLOCK; /* optional "not" */ 516398943Sluigi NEED1("missing source address"); 5164145246Sbrooks if (add_src(cmd, *av, proto)) { 5165102087Sluigi ac--; av++; 5166102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5167102087Sluigi prev = cmd; 5168102087Sluigi cmd = next_cmd(cmd); 5169102087Sluigi } 5170145246Sbrooks } else 5171145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 517298943Sluigi OR_BLOCK(source_ip); 517398943Sluigi 517498943Sluigi /* 517598943Sluigi * source ports, optional 517698943Sluigi */ 517798943Sluigi NOT_BLOCK; /* optional "not" */ 5178101641Sluigi if (ac) { 5179140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5180102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5181102087Sluigi ac--; av++; 5182102087Sluigi if (F_LEN(cmd) != 0) 5183102087Sluigi cmd = next_cmd(cmd); 5184101641Sluigi } 518598943Sluigi } 518698943Sluigi 518798943Sluigi /* 5188102087Sluigi * "to", mandatory 518998943Sluigi */ 5190140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 519198943Sluigi errx(EX_USAGE, "missing ``to''"); 519298943Sluigi av++; ac--; 519398943Sluigi 519498943Sluigi /* 519598943Sluigi * destination, mandatory 519698943Sluigi */ 519798943Sluigi OR_START(dest_ip); 519898943Sluigi NOT_BLOCK; /* optional "not" */ 519998943Sluigi NEED1("missing dst address"); 5200145246Sbrooks if (add_dst(cmd, *av, proto)) { 5201102087Sluigi ac--; av++; 5202102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5203102087Sluigi prev = cmd; 5204102087Sluigi cmd = next_cmd(cmd); 5205102087Sluigi } 5206145246Sbrooks } else 5207145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 520898943Sluigi OR_BLOCK(dest_ip); 520998943Sluigi 521098943Sluigi /* 521198943Sluigi * dest. ports, optional 521298943Sluigi */ 521398943Sluigi NOT_BLOCK; /* optional "not" */ 5214101641Sluigi if (ac) { 5215140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5216102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5217102087Sluigi ac--; av++; 5218102087Sluigi if (F_LEN(cmd) != 0) 5219102087Sluigi cmd = next_cmd(cmd); 5220101641Sluigi } 522198943Sluigi } 522298943Sluigi 522398943Sluigiread_options: 5224102087Sluigi if (ac && first_cmd == cmd) { 5225102087Sluigi /* 5226102087Sluigi * nothing specified so far, store in the rule to ease 5227102087Sluigi * printout later. 5228102087Sluigi */ 5229102087Sluigi rule->_pad = 1; 5230102087Sluigi } 523198943Sluigi prev = NULL; 523298943Sluigi while (ac) { 5233101641Sluigi char *s; 5234101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 523598943Sluigi 5236101641Sluigi s = *av; 5237101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5238101641Sluigi 523998943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 524098943Sluigi if (cmd->len & F_NOT) 524198943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 524298943Sluigi cmd->len = F_NOT; 524398943Sluigi s++; 524498943Sluigi } 524598943Sluigi i = match_token(rule_options, s); 524698943Sluigi ac--; av++; 524798943Sluigi switch(i) { 524898943Sluigi case TOK_NOT: 524998943Sluigi if (cmd->len & F_NOT) 525098943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 525198943Sluigi cmd->len = F_NOT; 525298943Sluigi break; 525398943Sluigi 525498943Sluigi case TOK_OR: 5255101641Sluigi if (open_par == 0 || prev == NULL) 525698943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 525798943Sluigi prev->len |= F_OR; 525898943Sluigi break; 5259101641Sluigi 5260101641Sluigi case TOK_STARTBRACE: 5261101641Sluigi if (open_par) 5262101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5263101641Sluigi open_par = 1; 5264101641Sluigi break; 5265101641Sluigi 5266101641Sluigi case TOK_ENDBRACE: 5267101641Sluigi if (!open_par) 5268101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5269101641Sluigi open_par = 0; 5270102087Sluigi prev = NULL; 5271101641Sluigi break; 5272101641Sluigi 527398943Sluigi case TOK_IN: 527498943Sluigi fill_cmd(cmd, O_IN, 0, 0); 527598943Sluigi break; 527698943Sluigi 527798943Sluigi case TOK_OUT: 527898943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 527998943Sluigi fill_cmd(cmd, O_IN, 0, 0); 528098943Sluigi break; 528198943Sluigi 5282136073Sgreen case TOK_DIVERTED: 5283136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5284136073Sgreen break; 5285136073Sgreen 5286136073Sgreen case TOK_DIVERTEDLOOPBACK: 5287136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5288136073Sgreen break; 5289136073Sgreen 5290136073Sgreen case TOK_DIVERTEDOUTPUT: 5291136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5292136073Sgreen break; 5293136073Sgreen 529498943Sluigi case TOK_FRAG: 529598943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 529698943Sluigi break; 529798943Sluigi 529898943Sluigi case TOK_LAYER2: 529998943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 530098943Sluigi break; 530198943Sluigi 530298943Sluigi case TOK_XMIT: 530398943Sluigi case TOK_RECV: 530498943Sluigi case TOK_VIA: 530598943Sluigi NEED1("recv, xmit, via require interface name" 530698943Sluigi " or address"); 530798943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 530898943Sluigi ac--; av++; 530998943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 531098943Sluigi break; 531198943Sluigi if (i == TOK_XMIT) 531298943Sluigi cmd->opcode = O_XMIT; 531398943Sluigi else if (i == TOK_RECV) 531498943Sluigi cmd->opcode = O_RECV; 531598943Sluigi else if (i == TOK_VIA) 531698943Sluigi cmd->opcode = O_VIA; 531798943Sluigi break; 531898943Sluigi 531999475Sluigi case TOK_ICMPTYPES: 532099475Sluigi NEED1("icmptypes requires list of types"); 532199475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 532299475Sluigi av++; ac--; 532399475Sluigi break; 5324145246Sbrooks 5325145246Sbrooks case TOK_ICMP6TYPES: 5326145246Sbrooks NEED1("icmptypes requires list of types"); 5327145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5328145246Sbrooks av++; ac--; 5329145246Sbrooks break; 533099475Sluigi 533198943Sluigi case TOK_IPTTL: 533298943Sluigi NEED1("ipttl requires TTL"); 5333116690Sluigi if (strpbrk(*av, "-,")) { 5334116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5335116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5336116690Sluigi } else 5337116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 533898943Sluigi ac--; av++; 533998943Sluigi break; 534098943Sluigi 534198943Sluigi case TOK_IPID: 5342116690Sluigi NEED1("ipid requires id"); 5343116690Sluigi if (strpbrk(*av, "-,")) { 5344116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5345116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5346116690Sluigi } else 5347116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 534898943Sluigi ac--; av++; 534998943Sluigi break; 535098943Sluigi 535198943Sluigi case TOK_IPLEN: 535298943Sluigi NEED1("iplen requires length"); 5353116690Sluigi if (strpbrk(*av, "-,")) { 5354116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5355116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5356116690Sluigi } else 5357116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 535898943Sluigi ac--; av++; 535998943Sluigi break; 536098943Sluigi 536198943Sluigi case TOK_IPVER: 536298943Sluigi NEED1("ipver requires version"); 536398943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 536498943Sluigi ac--; av++; 536598943Sluigi break; 536698943Sluigi 536799475Sluigi case TOK_IPPRECEDENCE: 536899475Sluigi NEED1("ipprecedence requires value"); 536999475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 537099475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 537199475Sluigi ac--; av++; 537299475Sluigi break; 537399475Sluigi 537498943Sluigi case TOK_IPOPTS: 537598943Sluigi NEED1("missing argument for ipoptions"); 5376101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 537798943Sluigi ac--; av++; 537898943Sluigi break; 537998943Sluigi 538099475Sluigi case TOK_IPTOS: 538199475Sluigi NEED1("missing argument for iptos"); 5382101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 538399475Sluigi ac--; av++; 538499475Sluigi break; 538599475Sluigi 538698943Sluigi case TOK_UID: 538798943Sluigi NEED1("uid requires argument"); 538898943Sluigi { 538998943Sluigi char *end; 539098943Sluigi uid_t uid; 539198943Sluigi struct passwd *pwd; 539298943Sluigi 539398943Sluigi cmd->opcode = O_UID; 539498943Sluigi uid = strtoul(*av, &end, 0); 539598943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 539698943Sluigi if (pwd == NULL) 539798943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5398106504Smaxim cmd32->d[0] = pwd->pw_uid; 5399135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 540098943Sluigi ac--; av++; 540198943Sluigi } 540298943Sluigi break; 540398943Sluigi 540498943Sluigi case TOK_GID: 540598943Sluigi NEED1("gid requires argument"); 540698943Sluigi { 540798943Sluigi char *end; 540898943Sluigi gid_t gid; 540998943Sluigi struct group *grp; 541098943Sluigi 541198943Sluigi cmd->opcode = O_GID; 541298943Sluigi gid = strtoul(*av, &end, 0); 541398943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 541498943Sluigi if (grp == NULL) 541598943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5416106504Smaxim cmd32->d[0] = grp->gr_gid; 5417135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 541898943Sluigi ac--; av++; 541998943Sluigi } 542098943Sluigi break; 542198943Sluigi 5422133600Scsjp case TOK_JAIL: 5423133600Scsjp NEED1("jail requires argument"); 5424133600Scsjp { 5425133600Scsjp char *end; 5426133600Scsjp int jid; 5427133600Scsjp 5428133600Scsjp cmd->opcode = O_JAIL; 5429133600Scsjp jid = (int)strtol(*av, &end, 0); 5430133600Scsjp if (jid < 0 || *end != '\0') 5431133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5432135554Scsjp cmd32->d[0] = (uint32_t)jid; 5433135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5434133600Scsjp ac--; av++; 5435133600Scsjp } 5436133600Scsjp break; 5437133600Scsjp 543898943Sluigi case TOK_ESTAB: 543998943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 544098943Sluigi break; 544198943Sluigi 544298943Sluigi case TOK_SETUP: 544398943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 544498943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 544598943Sluigi break; 544698943Sluigi 5447136075Sgreen case TOK_TCPDATALEN: 5448136075Sgreen NEED1("tcpdatalen requires length"); 5449136075Sgreen if (strpbrk(*av, "-,")) { 5450136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5451136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5452136075Sgreen } else 5453136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5454136075Sgreen strtoul(*av, NULL, 0)); 5455136075Sgreen ac--; av++; 5456136075Sgreen break; 5457136075Sgreen 545898943Sluigi case TOK_TCPOPTS: 545998943Sluigi NEED1("missing argument for tcpoptions"); 546098943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 546198943Sluigi ac--; av++; 546298943Sluigi break; 546398943Sluigi 546498943Sluigi case TOK_TCPSEQ: 546598943Sluigi case TOK_TCPACK: 546698943Sluigi NEED1("tcpseq/tcpack requires argument"); 546798943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 546898943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 546998943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 547098943Sluigi ac--; av++; 547198943Sluigi break; 547298943Sluigi 547398943Sluigi case TOK_TCPWIN: 547498943Sluigi NEED1("tcpwin requires length"); 547598943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 547698943Sluigi htons(strtoul(*av, NULL, 0))); 547798943Sluigi ac--; av++; 547898943Sluigi break; 547998943Sluigi 548098943Sluigi case TOK_TCPFLAGS: 548198943Sluigi NEED1("missing argument for tcpflags"); 548298943Sluigi cmd->opcode = O_TCPFLAGS; 548398943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 548498943Sluigi ac--; av++; 548598943Sluigi break; 548698943Sluigi 548798943Sluigi case TOK_KEEPSTATE: 5488101641Sluigi if (open_par) 5489101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5490101641Sluigi "of an or block"); 549199909Sluigi if (have_state) 5492101116Sluigi errx(EX_USAGE, "only one of keep-state " 549399909Sluigi "and limit is allowed"); 5494101116Sluigi have_state = cmd; 549598943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 549698943Sluigi break; 549798943Sluigi 5498159636Soleg case TOK_LIMIT: { 5499159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5500159636Soleg int val; 5501159636Soleg 5502101641Sluigi if (open_par) 5503159636Soleg errx(EX_USAGE, 5504159636Soleg "limit cannot be part of an or block"); 550599909Sluigi if (have_state) 5506168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5507159636Soleg "limit is allowed"); 5508101116Sluigi have_state = cmd; 550998943Sluigi 551098943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 551198943Sluigi cmd->opcode = O_LIMIT; 5512159636Soleg c->limit_mask = c->conn_limit = 0; 551398943Sluigi 5514159636Soleg while (ac > 0) { 5515159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 551698943Sluigi break; 551798943Sluigi c->limit_mask |= val; 551898943Sluigi ac--; av++; 551998943Sluigi } 5520159636Soleg 552198943Sluigi if (c->limit_mask == 0) 5522159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5523159636Soleg 5524159636Soleg GET_UINT_ARG(c->conn_limit, 1, 65534, TOK_LIMIT, 5525159636Soleg rule_options); 5526159636Soleg 552798943Sluigi ac--; av++; 552898943Sluigi break; 5529159636Soleg } 553098943Sluigi 5531102087Sluigi case TOK_PROTO: 5532102087Sluigi NEED1("missing protocol"); 5533145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5534102087Sluigi ac--; av++; 5535102098Sluigi } else 5536116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5537116438Smaxim *av); 5538102087Sluigi break; 5539106505Smaxim 5540102087Sluigi case TOK_SRCIP: 5541102087Sluigi NEED1("missing source IP"); 5542102087Sluigi if (add_srcip(cmd, *av)) { 5543102087Sluigi ac--; av++; 5544102087Sluigi } 5545102087Sluigi break; 5546102087Sluigi 5547102087Sluigi case TOK_DSTIP: 5548102087Sluigi NEED1("missing destination IP"); 5549102087Sluigi if (add_dstip(cmd, *av)) { 5550102087Sluigi ac--; av++; 5551102087Sluigi } 5552102087Sluigi break; 5553102087Sluigi 5554145246Sbrooks case TOK_SRCIP6: 5555145246Sbrooks NEED1("missing source IP6"); 5556145246Sbrooks if (add_srcip6(cmd, *av)) { 5557145246Sbrooks ac--; av++; 5558145246Sbrooks } 5559145246Sbrooks break; 5560145246Sbrooks 5561145246Sbrooks case TOK_DSTIP6: 5562145246Sbrooks NEED1("missing destination IP6"); 5563145246Sbrooks if (add_dstip6(cmd, *av)) { 5564145246Sbrooks ac--; av++; 5565145246Sbrooks } 5566145246Sbrooks break; 5567145246Sbrooks 5568102087Sluigi case TOK_SRCPORT: 5569102087Sluigi NEED1("missing source port"); 5570140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5571102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5572102087Sluigi ac--; av++; 5573102087Sluigi } else 5574102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5575102087Sluigi break; 5576102087Sluigi 5577102087Sluigi case TOK_DSTPORT: 5578102087Sluigi NEED1("missing destination port"); 5579140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5580102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5581102087Sluigi ac--; av++; 5582102087Sluigi } else 5583102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5584102087Sluigi *av); 5585102087Sluigi break; 5586102087Sluigi 5587102087Sluigi case TOK_MAC: 5588102087Sluigi if (add_mac(cmd, ac, av)) { 5589102087Sluigi ac -= 2; av += 2; 5590102087Sluigi } 5591102087Sluigi break; 5592102087Sluigi 5593102087Sluigi case TOK_MACTYPE: 5594102087Sluigi NEED1("missing mac type"); 5595102087Sluigi if (!add_mactype(cmd, ac, *av)) 5596116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5597102087Sluigi ac--; av++; 5598102087Sluigi break; 5599102087Sluigi 5600112250Scjc case TOK_VERREVPATH: 5601112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5602112250Scjc break; 5603116919Sluigi 5604128575Sandre case TOK_VERSRCREACH: 5605128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5606128575Sandre break; 5607128575Sandre 5608133387Sandre case TOK_ANTISPOOF: 5609133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5610133387Sandre break; 5611133387Sandre 5612117241Sluigi case TOK_IPSEC: 5613117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5614117241Sluigi break; 5615117241Sluigi 5616145246Sbrooks case TOK_IPV6: 5617145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5618145246Sbrooks break; 5619145246Sbrooks 5620146894Smlaier case TOK_IPV4: 5621146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5622146894Smlaier break; 5623146894Smlaier 5624145246Sbrooks case TOK_EXT6HDR: 5625145246Sbrooks fill_ext6hdr( cmd, *av ); 5626145246Sbrooks ac--; av++; 5627145246Sbrooks break; 5628145246Sbrooks 5629145246Sbrooks case TOK_FLOWID: 5630145246Sbrooks if (proto != IPPROTO_IPV6 ) 5631145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5632145246Sbrooks "only for ipv6 protocol\n"); 5633145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5634145246Sbrooks ac--; av++; 5635145246Sbrooks break; 5636145246Sbrooks 5637117469Sluigi case TOK_COMMENT: 5638117469Sluigi fill_comment(cmd, ac, av); 5639117469Sluigi av += ac; 5640117469Sluigi ac = 0; 5641117469Sluigi break; 5642117469Sluigi 5643158879Soleg case TOK_TAGGED: 5644159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5645158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5646159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5647159636Soleg " list: %s", *av); 5648158879Soleg } 5649159636Soleg else { 5650159636Soleg uint16_t tag; 5651159636Soleg 5652159636Soleg GET_UINT_ARG(tag, 1, 65534, TOK_TAGGED, 5653159636Soleg rule_options); 5654159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5655159636Soleg } 5656158879Soleg ac--; av++; 5657158879Soleg break; 5658158879Soleg 5659178888Sjulian case TOK_FIB: 5660178888Sjulian NEED1("fib requires fib number"); 5661178888Sjulian fill_cmd(cmd, O_FIB, 0, strtoul(*av, NULL, 0)); 5662178888Sjulian ac--; av++; 5663178888Sjulian break; 5664178888Sjulian 566598943Sluigi default: 566698943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 566798943Sluigi } 566898943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 566998943Sluigi prev = cmd; 567098943Sluigi cmd = next_cmd(cmd); 567198943Sluigi } 567298943Sluigi } 567398943Sluigi 567498943Sluigidone: 567598943Sluigi /* 567698943Sluigi * Now copy stuff into the rule. 567798943Sluigi * If we have a keep-state option, the first instruction 567898943Sluigi * must be a PROBE_STATE (which is generated here). 567998943Sluigi * If we have a LOG option, it was stored as the first command, 568098943Sluigi * and now must be moved to the top of the action part. 568198943Sluigi */ 568298943Sluigi dst = (ipfw_insn *)rule->cmd; 568398943Sluigi 568498943Sluigi /* 5685107289Sluigi * First thing to write into the command stream is the match probability. 5686107289Sluigi */ 5687107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5688107289Sluigi dst->opcode = O_PROB; 5689107289Sluigi dst->len = 2; 5690107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5691107289Sluigi dst += dst->len; 5692107289Sluigi } 5693107289Sluigi 5694107289Sluigi /* 569598943Sluigi * generate O_PROBE_STATE if necessary 569698943Sluigi */ 5697101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 569898943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 569998943Sluigi dst = next_cmd(dst); 570098943Sluigi } 5701158879Soleg 5702158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 570398943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 570498943Sluigi i = F_LEN(src); 570598943Sluigi 5706101116Sluigi switch (src->opcode) { 5707101116Sluigi case O_LOG: 5708101116Sluigi case O_KEEP_STATE: 5709101116Sluigi case O_LIMIT: 5710136071Sgreen case O_ALTQ: 5711158879Soleg case O_TAG: 5712101116Sluigi break; 5713101116Sluigi default: 5714117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 571598943Sluigi dst += i; 571698943Sluigi } 571798943Sluigi } 571898943Sluigi 571998943Sluigi /* 5720101116Sluigi * put back the have_state command as last opcode 5721101116Sluigi */ 5722101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5723101116Sluigi i = F_LEN(have_state); 5724117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5725101116Sluigi dst += i; 5726101116Sluigi } 5727101116Sluigi /* 572898943Sluigi * start action section 572998943Sluigi */ 573098943Sluigi rule->act_ofs = dst - rule->cmd; 573198943Sluigi 5732158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5733136071Sgreen if (have_log) { 5734136071Sgreen i = F_LEN(have_log); 5735136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 573698943Sluigi dst += i; 573798943Sluigi } 5738136071Sgreen if (have_altq) { 5739136071Sgreen i = F_LEN(have_altq); 5740136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5741136071Sgreen dst += i; 5742136071Sgreen } 5743158879Soleg if (have_tag) { 5744158879Soleg i = F_LEN(have_tag); 5745158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5746158879Soleg dst += i; 5747158879Soleg } 574898943Sluigi /* 574998943Sluigi * copy all other actions 575098943Sluigi */ 575198943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 575298943Sluigi i = F_LEN(src); 5753117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 575498943Sluigi dst += i; 575598943Sluigi } 575698943Sluigi 5757117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5758117469Sluigi i = (char *)dst - (char *)rule; 5759119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 576098943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 576198943Sluigi if (!do_quiet) 5762117469Sluigi show_ipfw(rule, 0, 0); 576398943Sluigi} 576498943Sluigi 576598943Sluigistatic void 5766117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 576798943Sluigi{ 5768170923Smaxim uint32_t arg, saved_arg; 576998943Sluigi int failed = EX_OK; 5770117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 5771170923Smaxim char const *errstr; 577298943Sluigi 577398943Sluigi av++; ac--; 577498943Sluigi 577598943Sluigi if (!ac) { 577698943Sluigi /* clear all entries */ 5777117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5778117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 577998943Sluigi if (!do_quiet) 5780117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5781117328Sluigi "Accounting cleared":"Logging counts reset"); 578298943Sluigi 578398943Sluigi return; 578498943Sluigi } 578598943Sluigi 578698943Sluigi while (ac) { 578798943Sluigi /* Rule number */ 578898943Sluigi if (isdigit(**av)) { 5789170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 5790170923Smaxim if (errstr) 5791170923Smaxim errx(EX_DATAERR, 5792170923Smaxim "invalid rule number %s\n", *av); 5793170923Smaxim saved_arg = arg; 5794170923Smaxim if (use_set) 5795170923Smaxim arg |= (1 << 24) | ((use_set - 1) << 16); 579698943Sluigi av++; 579798943Sluigi ac--; 5798170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 5799117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5800170923Smaxim saved_arg, name); 580198943Sluigi failed = EX_UNAVAILABLE; 580298943Sluigi } else if (!do_quiet) 5803170923Smaxim printf("Entry %d %s.\n", saved_arg, 5804117328Sluigi optname == IP_FW_ZERO ? 5805117328Sluigi "cleared" : "logging count reset"); 580698943Sluigi } else { 580798943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 580898943Sluigi } 580998943Sluigi } 581098943Sluigi if (failed != EX_OK) 581198943Sluigi exit(failed); 581298943Sluigi} 581398943Sluigi 581498943Sluigistatic void 5815117544Sluigiflush(int force) 581698943Sluigi{ 581798943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 581898943Sluigi 5819117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 582098943Sluigi int c; 582198943Sluigi 582298943Sluigi printf("Are you sure? [yn] "); 582398943Sluigi fflush(stdout); 582498943Sluigi do { 582598943Sluigi c = toupper(getc(stdin)); 582698943Sluigi while (c != '\n' && getc(stdin) != '\n') 582798943Sluigi if (feof(stdin)) 582898943Sluigi return; /* and do not flush */ 582998943Sluigi } while (c != 'Y' && c != 'N'); 583098943Sluigi printf("\n"); 583198943Sluigi if (c == 'N') /* user said no */ 583298943Sluigi return; 583398943Sluigi } 5834170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 5835170923Smaxim if (use_set) { 5836170923Smaxim uint32_t arg = ((use_set - 1) & 0xffff) | (1 << 24); 5837170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 5838170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 5839170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 584098943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 584198943Sluigi do_pipe ? "DUMMYNET" : "FW"); 584298943Sluigi if (!do_quiet) 584398943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 584498943Sluigi} 584598943Sluigi 5846117469Sluigi/* 5847117544Sluigi * Free a the (locally allocated) copy of command line arguments. 5848117469Sluigi */ 5849117544Sluigistatic void 5850117544Sluigifree_args(int ac, char **av) 5851117544Sluigi{ 5852117544Sluigi int i; 5853117544Sluigi 5854117544Sluigi for (i=0; i < ac; i++) 5855117544Sluigi free(av[i]); 5856117544Sluigi free(av); 5857117544Sluigi} 5858117544Sluigi 5859117544Sluigi/* 5860130281Sru * This one handles all table-related commands 5861130281Sru * ipfw table N add addr[/masklen] [value] 5862130281Sru * ipfw table N delete addr[/masklen] 5863130281Sru * ipfw table N flush 5864130281Sru * ipfw table N list 5865130281Sru */ 5866130281Srustatic void 5867130281Srutable_handler(int ac, char *av[]) 5868130281Sru{ 5869130281Sru ipfw_table_entry ent; 5870130281Sru ipfw_table *tbl; 5871130281Sru int do_add; 5872130281Sru char *p; 5873130281Sru socklen_t l; 5874130281Sru uint32_t a; 5875130281Sru 5876130281Sru ac--; av++; 5877130281Sru if (ac && isdigit(**av)) { 5878130281Sru ent.tbl = atoi(*av); 5879130281Sru ac--; av++; 5880130281Sru } else 5881130281Sru errx(EX_USAGE, "table number required"); 5882130281Sru NEED1("table needs command"); 5883140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5884140271Sbrooks _substrcmp(*av, "delete") == 0) { 5885130281Sru do_add = **av == 'a'; 5886130281Sru ac--; av++; 5887130281Sru if (!ac) 5888130281Sru errx(EX_USAGE, "IP address required"); 5889130281Sru p = strchr(*av, '/'); 5890130281Sru if (p) { 5891130281Sru *p++ = '\0'; 5892130281Sru ent.masklen = atoi(p); 5893130281Sru if (ent.masklen > 32) 5894130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5895130281Sru } else 5896130281Sru ent.masklen = 32; 5897130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5898130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5899130281Sru ac--; av++; 5900161424Sjulian if (do_add && ac) { 5901161424Sjulian unsigned int tval; 5902161424Sjulian /* isdigit is a bit of a hack here.. */ 5903161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5904161424Sjulian ent.value = strtoul(*av, NULL, 0); 5905161424Sjulian } else { 5906161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5907161424Sjulian /* The value must be stored in host order * 5908161424Sjulian * so that the values < 65k can be distinguished */ 5909161424Sjulian ent.value = ntohl(tval); 5910161424Sjulian } else { 5911161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5912161424Sjulian } 5913161424Sjulian } 5914161424Sjulian } else 5915130281Sru ent.value = 0; 5916130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5917157335Sjulian &ent, sizeof(ent)) < 0) { 5918155639Sjulian /* If running silent, don't bomb out on these errors. */ 5919155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5920155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5921155639Sjulian do_add ? "ADD" : "DEL"); 5922155639Sjulian /* In silent mode, react to a failed add by deleting */ 5923157332Sjulian if (do_add) { 5924155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5925155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5926155639Sjulian &ent, sizeof(ent)) < 0) 5927155639Sjulian err(EX_OSERR, 5928155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5929157332Sjulian } 5930157335Sjulian } 5931140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5932130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 5933130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5934140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5935130281Sru a = ent.tbl; 5936130281Sru l = sizeof(a); 5937130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5938130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5939130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 5940130281Sru tbl = malloc(l); 5941130281Sru if (tbl == NULL) 5942130281Sru err(EX_OSERR, "malloc"); 5943130281Sru tbl->tbl = ent.tbl; 5944130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 5945130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 5946130281Sru for (a = 0; a < tbl->cnt; a++) { 5947161424Sjulian unsigned int tval; 5948161424Sjulian tval = tbl->ent[a].value; 5949176391Sjulian if (do_value_as_ip) { 5950161424Sjulian char tbuf[128]; 5951161456Sjulian strncpy(tbuf, inet_ntoa(*(struct in_addr *) 5952161456Sjulian &tbl->ent[a].addr), 127); 5953176391Sjulian /* inet_ntoa expects network order */ 5954161424Sjulian tval = htonl(tval); 5955161456Sjulian printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 5956161456Sjulian inet_ntoa(*(struct in_addr *)&tval)); 5957161424Sjulian } else { 5958161424Sjulian printf("%s/%u %u\n", 5959161456Sjulian inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 5960176391Sjulian tbl->ent[a].masklen, tval); 5961161424Sjulian } 5962130281Sru } 5963130281Sru } else 5964130281Sru errx(EX_USAGE, "invalid table command %s", *av); 5965130281Sru} 5966130281Sru 5967165648Spisostatic void 5968165648Spisoshow_nat(int ac, char **av) { 5969165648Spiso struct cfg_nat *n; 5970165648Spiso struct cfg_redir *e; 5971165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 5972176393Spiso int nat_cnt, redir_cnt, r; 5973165648Spiso uint8_t *data, *p; 5974165648Spiso char **lav, *endptr; 5975165648Spiso 5976165648Spiso do_rule = 0; 5977165648Spiso nalloc = 1024; 5978165648Spiso size = 0; 5979165648Spiso data = NULL; 5980176445Spiso frule = 0; 5981176445Spiso lrule = 65535; /* max ipfw rule number */ 5982165648Spiso ac--; av++; 5983165648Spiso 5984165648Spiso /* Parse parameters. */ 5985165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 5986165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 5987165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 5988165648Spiso continue; 5989165648Spiso } 5990165648Spiso /* Convert command line rule #. */ 5991165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 5992165648Spiso if (*endptr == '-') 5993165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 5994165648Spiso if (lrule == 0) 5995165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 5996165648Spiso do_rule = 1; 5997165648Spiso } 5998165648Spiso 5999165648Spiso nbytes = nalloc; 6000165648Spiso while (nbytes >= nalloc) { 6001165648Spiso nalloc = nalloc * 2; 6002165648Spiso nbytes = nalloc; 6003165648Spiso if ((data = realloc(data, nbytes)) == NULL) 6004165648Spiso err(EX_OSERR, "realloc"); 6005165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 6006165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 6007165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 6008165648Spiso } 6009165648Spiso if (nbytes == 0) 6010176445Spiso exit(0); 6011165648Spiso if (do_cfg) { 6012165648Spiso nat_cnt = *((int *)data); 6013165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 6014165648Spiso n = (struct cfg_nat *)&data[i]; 6015176445Spiso if (frule <= n->id && lrule >= n->id) 6016176445Spiso print_nat_config(&data[i]); 6017165648Spiso i += sizeof(struct cfg_nat); 6018176393Spiso for (redir_cnt = 0; redir_cnt < n->redir_cnt; redir_cnt++) { 6019176393Spiso e = (struct cfg_redir *)&data[i]; 6020165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 6021165648Spiso sizeof(struct cfg_spool); 6022176393Spiso } 6023165648Spiso } 6024165648Spiso } else { 6025165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 6026165648Spiso p = &data[i]; 6027165648Spiso if (p == data + nbytes) 6028165648Spiso break; 6029165648Spiso bcopy(p, &r, sizeof(int)); 6030165648Spiso if (do_rule) { 6031165648Spiso if (!(frule <= r && lrule >= r)) 6032165648Spiso continue; 6033165648Spiso } 6034165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 6035165648Spiso } 6036165648Spiso } 6037165648Spiso} 6038165648Spiso 6039130281Sru/* 6040117544Sluigi * Called with the arguments (excluding program name). 6041117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 6042117544Sluigi */ 604398943Sluigistatic int 6044117328Sluigiipfw_main(int oldac, char **oldav) 604598943Sluigi{ 6046117469Sluigi int ch, ac, save_ac; 6047170923Smaxim const char *errstr; 6048117469Sluigi char **av, **save_av; 6049117469Sluigi int do_acct = 0; /* Show packet/byte count */ 6050117469Sluigi 6051117469Sluigi#define WHITESP " \t\f\v\n\r" 6052117544Sluigi if (oldac == 0) 6053117544Sluigi return 1; 6054117544Sluigi else if (oldac == 1) { 6055117328Sluigi /* 6056117328Sluigi * If we are called with a single string, try to split it into 6057117328Sluigi * arguments for subsequent parsing. 6058117328Sluigi * But first, remove spaces after a ',', by copying the string 6059117328Sluigi * in-place. 6060117328Sluigi */ 6061117469Sluigi char *arg = oldav[0]; /* The string... */ 6062117328Sluigi int l = strlen(arg); 6063117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 6064117328Sluigi int i, j; 6065117469Sluigi for (i = j = 0; i < l; i++) { 6066117469Sluigi if (arg[i] == '#') /* comment marker */ 6067117469Sluigi break; 6068117328Sluigi if (copy) { 6069117328Sluigi arg[j++] = arg[i]; 6070117469Sluigi copy = !index("," WHITESP, arg[i]); 6071117328Sluigi } else { 6072117469Sluigi copy = !index(WHITESP, arg[i]); 6073117328Sluigi if (copy) 6074117328Sluigi arg[j++] = arg[i]; 6075117328Sluigi } 6076117469Sluigi } 6077117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 6078117328Sluigi j--; 6079117328Sluigi l = j; /* the new argument length */ 6080117328Sluigi arg[j++] = '\0'; 6081117469Sluigi if (l == 0) /* empty string! */ 6082117544Sluigi return 1; 6083117328Sluigi 6084117328Sluigi /* 6085117328Sluigi * First, count number of arguments. Because of the previous 6086117469Sluigi * processing, this is just the number of blanks plus 1. 6087117328Sluigi */ 6088117469Sluigi for (i = 0, ac = 1; i < l; i++) 6089117469Sluigi if (index(WHITESP, arg[i]) != NULL) 6090117328Sluigi ac++; 6091117328Sluigi 6092117328Sluigi av = calloc(ac, sizeof(char *)); 6093117328Sluigi 6094117328Sluigi /* 6095117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 6096117328Sluigi * j is the initial character, i is the one past the end. 6097117328Sluigi */ 6098117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 6099117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 6100117328Sluigi if (i == l-1) 6101117328Sluigi i++; 6102117328Sluigi av[ac] = calloc(i-j+1, 1); 6103117328Sluigi bcopy(arg+j, av[ac], i-j); 6104117328Sluigi ac++; 6105117328Sluigi j = i + 1; 6106117328Sluigi } 6107117328Sluigi } else { 6108117328Sluigi /* 6109117328Sluigi * If an argument ends with ',' join with the next one. 6110117328Sluigi */ 6111117328Sluigi int first, i, l; 6112117328Sluigi 6113117328Sluigi av = calloc(oldac, sizeof(char *)); 6114117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 6115117328Sluigi char *arg = oldav[i]; 6116117328Sluigi int k = strlen(arg); 6117117328Sluigi 6118117328Sluigi l += k; 6119117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 6120117328Sluigi /* Time to copy. */ 6121117328Sluigi av[ac] = calloc(l+1, 1); 6122117328Sluigi for (l=0; first <= i; first++) { 6123117328Sluigi strcat(av[ac]+l, oldav[first]); 6124117328Sluigi l += strlen(oldav[first]); 6125117328Sluigi } 6126117328Sluigi ac++; 6127117328Sluigi l = 0; 6128117328Sluigi first = i+1; 6129117328Sluigi } 6130117328Sluigi } 6131117328Sluigi } 6132117328Sluigi 613398943Sluigi /* Set the force flag for non-interactive processes */ 6134123804Smaxim if (!do_force) 6135123804Smaxim do_force = !isatty(STDIN_FILENO); 613698943Sluigi 6137117469Sluigi /* Save arguments for final freeing of memory. */ 6138117469Sluigi save_ac = ac; 6139117469Sluigi save_av = av; 6140117469Sluigi 6141117469Sluigi optind = optreset = 0; 6142176391Sjulian while ((ch = getopt(ac, av, "abcdefhinNqs:STtv")) != -1) 614398943Sluigi switch (ch) { 614498943Sluigi case 'a': 614598943Sluigi do_acct = 1; 614698943Sluigi break; 6147117328Sluigi 6148123495Sluigi case 'b': 6149123495Sluigi comment_only = 1; 6150123495Sluigi do_compact = 1; 6151123495Sluigi break; 6152123495Sluigi 6153102098Sluigi case 'c': 6154102098Sluigi do_compact = 1; 6155102098Sluigi break; 6156117328Sluigi 615798943Sluigi case 'd': 615898943Sluigi do_dynamic = 1; 615998943Sluigi break; 6160117328Sluigi 616198943Sluigi case 'e': 616298943Sluigi do_expired = 1; 616398943Sluigi break; 6164117328Sluigi 616598943Sluigi case 'f': 616698943Sluigi do_force = 1; 616798943Sluigi break; 6168117328Sluigi 6169117328Sluigi case 'h': /* help */ 6170117544Sluigi free_args(save_ac, save_av); 6171117328Sluigi help(); 6172117328Sluigi break; /* NOTREACHED */ 6173117328Sluigi 6174176391Sjulian case 'i': 6175176391Sjulian do_value_as_ip = 1; 6176176391Sjulian break; 6177176391Sjulian 6178117328Sluigi case 'n': 6179117328Sluigi test_only = 1; 6180117328Sluigi break; 6181117328Sluigi 618298943Sluigi case 'N': 618398943Sluigi do_resolv = 1; 618498943Sluigi break; 6185117328Sluigi 618698943Sluigi case 'q': 618798943Sluigi do_quiet = 1; 618898943Sluigi break; 6189117328Sluigi 6190117328Sluigi case 's': /* sort */ 6191117328Sluigi do_sort = atoi(optarg); 6192117328Sluigi break; 6193117328Sluigi 6194101628Sluigi case 'S': 6195101628Sluigi show_sets = 1; 6196101628Sluigi break; 6197117328Sluigi 619898943Sluigi case 't': 619998943Sluigi do_time = 1; 620098943Sluigi break; 6201117328Sluigi 6202117472Sluigi case 'T': 6203117472Sluigi do_time = 2; /* numeric timestamp */ 6204117472Sluigi break; 6205117472Sluigi 620698943Sluigi case 'v': /* verbose */ 6207117328Sluigi verbose = 1; 620898943Sluigi break; 6209117328Sluigi 621098943Sluigi default: 6211117544Sluigi free_args(save_ac, save_av); 6212117544Sluigi return 1; 621398943Sluigi } 621498943Sluigi 621598943Sluigi ac -= optind; 621698943Sluigi av += optind; 621798943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 621898943Sluigi 621998943Sluigi /* 6220117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 6221117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 6222117544Sluigi * In case, swap first and second argument to get the normal form. 6223117544Sluigi */ 6224117544Sluigi if (ac > 1 && isdigit(*av[0])) { 6225117544Sluigi char *p = av[0]; 6226117544Sluigi 6227117544Sluigi av[0] = av[1]; 6228117544Sluigi av[1] = p; 6229117544Sluigi } 6230117544Sluigi 6231117544Sluigi /* 6232165648Spiso * Optional: pipe, queue or nat. 623398943Sluigi */ 6234165648Spiso do_nat = 0; 6235117821Smaxim do_pipe = 0; 6236165648Spiso if (!strncmp(*av, "nat", strlen(*av))) 6237165648Spiso do_nat = 1; 6238165648Spiso else if (!strncmp(*av, "pipe", strlen(*av))) 623998943Sluigi do_pipe = 1; 6240140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 624198943Sluigi do_pipe = 2; 6242170923Smaxim else if (!strncmp(*av, "set", strlen(*av))) { 6243170923Smaxim if (ac > 1 && isdigit(av[1][0])) { 6244170923Smaxim use_set = strtonum(av[1], 0, RESVD_SET, &errstr); 6245170923Smaxim if (errstr) 6246170923Smaxim errx(EX_DATAERR, 6247170923Smaxim "invalid set number %s\n", av[1]); 6248170923Smaxim ac -= 2; av += 2; use_set++; 6249170923Smaxim } 6250170923Smaxim } 6251170923Smaxim 6252165648Spiso if (do_pipe || do_nat) { 625398943Sluigi ac--; 625498943Sluigi av++; 625598943Sluigi } 625698943Sluigi NEED1("missing command"); 625798943Sluigi 625898943Sluigi /* 6259165648Spiso * For pipes, queues and nats we normally say 'nat|pipe NN config' 6260165648Spiso * but the code is easier to parse as 'nat|pipe config NN' 626198943Sluigi * so we swap the two arguments. 626298943Sluigi */ 6263165648Spiso if ((do_pipe || do_nat) && ac > 1 && isdigit(*av[0])) { 626498943Sluigi char *p = av[0]; 6265117544Sluigi 626698943Sluigi av[0] = av[1]; 626798943Sluigi av[1] = p; 626898943Sluigi } 6269117328Sluigi 6270170923Smaxim int try_next = 0; 6271170923Smaxim if (use_set == 0) { 6272170923Smaxim if (_substrcmp(*av, "add") == 0) 6273170923Smaxim add(ac, av); 6274170923Smaxim else if (do_nat && _substrcmp(*av, "show") == 0) 6275170923Smaxim show_nat(ac, av); 6276170923Smaxim else if (do_pipe && _substrcmp(*av, "config") == 0) 6277170923Smaxim config_pipe(ac, av); 6278170923Smaxim else if (do_nat && _substrcmp(*av, "config") == 0) 6279170923Smaxim config_nat(ac, av); 6280173080Smaxim else if (_substrcmp(*av, "set") == 0) 6281173080Smaxim sets_handler(ac, av); 6282173080Smaxim else if (_substrcmp(*av, "table") == 0) 6283173080Smaxim table_handler(ac, av); 6284173080Smaxim else if (_substrcmp(*av, "enable") == 0) 6285173080Smaxim sysctl_handler(ac, av, 1); 6286173080Smaxim else if (_substrcmp(*av, "disable") == 0) 6287173080Smaxim sysctl_handler(ac, av, 0); 6288173080Smaxim else 6289173080Smaxim try_next = 1; 6290170923Smaxim } 6291117469Sluigi 6292170923Smaxim if (use_set || try_next) { 6293170923Smaxim if (_substrcmp(*av, "delete") == 0) 6294170923Smaxim delete(ac, av); 6295170923Smaxim else if (_substrcmp(*av, "flush") == 0) 6296170923Smaxim flush(do_force); 6297170923Smaxim else if (_substrcmp(*av, "zero") == 0) 6298170923Smaxim zero(ac, av, IP_FW_ZERO); 6299170923Smaxim else if (_substrcmp(*av, "resetlog") == 0) 6300170923Smaxim zero(ac, av, IP_FW_RESETLOG); 6301170923Smaxim else if (_substrcmp(*av, "print") == 0 || 6302170923Smaxim _substrcmp(*av, "list") == 0) 6303170923Smaxim list(ac, av, do_acct); 6304170923Smaxim else if (_substrcmp(*av, "show") == 0) 6305170923Smaxim list(ac, av, 1 /* show counters */); 6306170923Smaxim else 6307170923Smaxim errx(EX_USAGE, "bad command `%s'", *av); 6308170923Smaxim } 6309170923Smaxim 6310117469Sluigi /* Free memory allocated in the argument parsing. */ 6311117544Sluigi free_args(save_ac, save_av); 631298943Sluigi return 0; 631398943Sluigi} 631498943Sluigi 631598943Sluigi 631698943Sluigistatic void 6317106505Smaximipfw_readfile(int ac, char *av[]) 631898943Sluigi{ 631998943Sluigi#define MAX_ARGS 32 632098943Sluigi char buf[BUFSIZ]; 6321117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 6322117469Sluigi int c, lineno=0; 632398943Sluigi FILE *f = NULL; 632498943Sluigi pid_t preproc = 0; 632598943Sluigi 6326117469Sluigi filename = av[ac-1]; 6327117469Sluigi 6328123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 632998943Sluigi switch(c) { 6330117469Sluigi case 'c': 6331117469Sluigi do_compact = 1; 6332117469Sluigi break; 6333117469Sluigi 6334123804Smaxim case 'f': 6335123804Smaxim do_force = 1; 6336123804Smaxim break; 6337123804Smaxim 6338117469Sluigi case 'N': 6339117469Sluigi do_resolv = 1; 6340117469Sluigi break; 6341117469Sluigi 6342117328Sluigi case 'n': 6343117328Sluigi test_only = 1; 6344117328Sluigi break; 6345117328Sluigi 634698943Sluigi case 'p': 634798943Sluigi cmd = optarg; 6348117469Sluigi /* 6349117469Sluigi * Skip previous args and delete last one, so we 6350117469Sluigi * pass all but the last argument to the preprocessor 6351117469Sluigi * via av[optind-1] 6352117469Sluigi */ 6353117469Sluigi av += optind - 1; 6354117469Sluigi ac -= optind - 1; 6355162773Smaxim if (ac < 2) 6356162773Smaxim errx(EX_USAGE, "no filename argument"); 6357117469Sluigi av[ac-1] = NULL; 6358117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 635998943Sluigi break; 636098943Sluigi 636198943Sluigi case 'q': 6362117469Sluigi do_quiet = 1; 636398943Sluigi break; 636498943Sluigi 6365117469Sluigi case 'S': 6366117469Sluigi show_sets = 1; 6367117469Sluigi break; 6368117469Sluigi 636998943Sluigi default: 637098943Sluigi errx(EX_USAGE, "bad arguments, for usage" 637198943Sluigi " summary ``ipfw''"); 637298943Sluigi } 637398943Sluigi 6374117469Sluigi if (cmd != NULL) 6375108231Skbyanc break; 6376108231Skbyanc } 6377108231Skbyanc 6378117469Sluigi if (cmd == NULL && ac != optind + 1) { 6379117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 6380117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 6381108231Skbyanc } 6382108231Skbyanc 6383117469Sluigi if ((f = fopen(filename, "r")) == NULL) 6384117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 638598943Sluigi 6386117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 638798943Sluigi int pipedes[2]; 638898943Sluigi 638998943Sluigi if (pipe(pipedes) == -1) 639098943Sluigi err(EX_OSERR, "cannot create pipe"); 639198943Sluigi 6392117469Sluigi preproc = fork(); 6393117469Sluigi if (preproc == -1) 639498943Sluigi err(EX_OSERR, "cannot fork"); 639598943Sluigi 6396117577Sluigi if (preproc == 0) { 6397117469Sluigi /* 6398117469Sluigi * Child, will run the preprocessor with the 6399117469Sluigi * file on stdin and the pipe on stdout. 6400117469Sluigi */ 640198943Sluigi if (dup2(fileno(f), 0) == -1 640298943Sluigi || dup2(pipedes[1], 1) == -1) 640398943Sluigi err(EX_OSERR, "dup2()"); 640498943Sluigi fclose(f); 640598943Sluigi close(pipedes[1]); 640698943Sluigi close(pipedes[0]); 6407117469Sluigi execvp(cmd, av); 640898943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 6409117469Sluigi } else { /* parent, will reopen f as the pipe */ 641098943Sluigi fclose(f); 641198943Sluigi close(pipedes[1]); 641298943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 641398943Sluigi int savederrno = errno; 641498943Sluigi 641598943Sluigi (void)kill(preproc, SIGTERM); 641698943Sluigi errno = savederrno; 641798943Sluigi err(EX_OSERR, "fdopen()"); 641898943Sluigi } 641998943Sluigi } 642098943Sluigi } 642198943Sluigi 6422117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 6423117469Sluigi char linename[10]; 6424117469Sluigi char *args[1]; 6425117469Sluigi 642698943Sluigi lineno++; 642798943Sluigi sprintf(linename, "Line %d", lineno); 6428117328Sluigi setprogname(linename); /* XXX */ 6429117469Sluigi args[0] = buf; 6430117469Sluigi ipfw_main(1, args); 643198943Sluigi } 643298943Sluigi fclose(f); 6433117469Sluigi if (cmd != NULL) { 6434117469Sluigi int status; 6435117469Sluigi 643698943Sluigi if (waitpid(preproc, &status, 0) == -1) 643798943Sluigi errx(EX_OSERR, "waitpid()"); 643898943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 643998943Sluigi errx(EX_UNAVAILABLE, 644098943Sluigi "preprocessor exited with status %d", 644198943Sluigi WEXITSTATUS(status)); 644298943Sluigi else if (WIFSIGNALED(status)) 644398943Sluigi errx(EX_UNAVAILABLE, 644498943Sluigi "preprocessor exited with signal %d", 644598943Sluigi WTERMSIG(status)); 644698943Sluigi } 644798943Sluigi} 644898943Sluigi 644998943Sluigiint 645098943Sluigimain(int ac, char *av[]) 645198943Sluigi{ 645298943Sluigi /* 645398943Sluigi * If the last argument is an absolute pathname, interpret it 645498943Sluigi * as a file to be preprocessed. 645598943Sluigi */ 645698943Sluigi 645798943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 645898943Sluigi ipfw_readfile(ac, av); 6459117544Sluigi else { 6460117544Sluigi if (ipfw_main(ac-1, av+1)) 6461117544Sluigi show_usage(); 6462117544Sluigi } 646398943Sluigi return EX_OK; 646498943Sluigi} 6465