ipfw2.c revision 169424
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 169424 2007-05-09 18:31:49Z maxim $ 2198943Sluigi */ 2298943Sluigi 2398943Sluigi#include <sys/param.h> 2498943Sluigi#include <sys/mbuf.h> 2598943Sluigi#include <sys/socket.h> 2698943Sluigi#include <sys/sockio.h> 2798943Sluigi#include <sys/sysctl.h> 2898943Sluigi#include <sys/time.h> 2998943Sluigi#include <sys/wait.h> 30136071Sgreen#include <sys/queue.h> 3198943Sluigi 3298943Sluigi#include <ctype.h> 3398943Sluigi#include <err.h> 3498943Sluigi#include <errno.h> 3598943Sluigi#include <grp.h> 3698943Sluigi#include <limits.h> 3798943Sluigi#include <netdb.h> 3898943Sluigi#include <pwd.h> 3998943Sluigi#include <signal.h> 4098943Sluigi#include <stdio.h> 4198943Sluigi#include <stdlib.h> 4298943Sluigi#include <stdarg.h> 4398943Sluigi#include <string.h> 44117469Sluigi#include <timeconv.h> /* XXX do we need this ? */ 4598943Sluigi#include <unistd.h> 4698943Sluigi#include <sysexits.h> 47136071Sgreen#include <unistd.h> 48136071Sgreen#include <fcntl.h> 4998943Sluigi 50169424Smaxim#include <net/ethernet.h> 5198943Sluigi#include <net/if.h> 52165648Spiso#include <net/if_dl.h> 53136071Sgreen#include <net/pfvar.h> 54145246Sbrooks#include <net/route.h> /* def. of struct route */ 5598943Sluigi#include <netinet/in.h> 5698943Sluigi#include <netinet/in_systm.h> 5798943Sluigi#include <netinet/ip.h> 5898943Sluigi#include <netinet/ip_icmp.h> 59145246Sbrooks#include <netinet/icmp6.h> 6098943Sluigi#include <netinet/ip_fw.h> 6198943Sluigi#include <netinet/ip_dummynet.h> 6298943Sluigi#include <netinet/tcp.h> 6398943Sluigi#include <arpa/inet.h> 64165648Spiso#include <alias.h> 6598943Sluigi 66117328Sluigiint 6798943Sluigi do_resolv, /* Would try to resolve all */ 6898943Sluigi do_time, /* Show time stamps */ 6998943Sluigi do_quiet, /* Be quiet in add and flush */ 7098943Sluigi do_pipe, /* this cmd refers to a pipe */ 71165648Spiso do_nat, /* Nat configuration. */ 7298943Sluigi do_sort, /* field to sort results (0 = no) */ 7398943Sluigi do_dynamic, /* display dynamic rules */ 7498943Sluigi do_expired, /* display expired dynamic rules */ 75102098Sluigi do_compact, /* show rules in compact mode */ 76123804Smaxim do_force, /* do not ask for confirmation */ 77101628Sluigi show_sets, /* display rule sets */ 78117328Sluigi test_only, /* only check syntax */ 79123495Sluigi comment_only, /* only print action and comment */ 8098943Sluigi verbose; 8198943Sluigi 8298943Sluigi#define IP_MASK_ALL 0xffffffff 83130013Scsjp/* 84130013Scsjp * the following macro returns an error message if we run out of 85130013Scsjp * arguments. 86130013Scsjp */ 87130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 8898943Sluigi 89159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 90159636Soleg if (!ac) \ 91159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 92159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 93159636Soleg arg = IP_FW_TABLEARG; \ 94159636Soleg break; \ 95159636Soleg } \ 96159636Soleg \ 97159636Soleg { \ 98159636Soleg long val; \ 99159636Soleg char *end; \ 100159636Soleg \ 101159636Soleg val = strtol(*av, &end, 10); \ 102159636Soleg \ 103159636Soleg if (!isdigit(**av) || *end != '\0' || (val == 0 && errno == EINVAL)) \ 104159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 105159636Soleg match_value(s_x, tok), *av); \ 106159636Soleg \ 107159636Soleg if (errno == ERANGE || val < min || val > max) \ 108159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 109159636Soleg match_value(s_x, tok), min, max, *av); \ 110159636Soleg \ 111159636Soleg if (val == IP_FW_TABLEARG) \ 112159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 113159636Soleg match_value(s_x, tok), *av); \ 114159636Soleg arg = val; \ 115159636Soleg } \ 116158879Soleg} while (0) 117158879Soleg 118159636Soleg#define PRINT_UINT_ARG(str, arg) do { \ 119159636Soleg if (str != NULL) \ 120159636Soleg printf("%s",str); \ 121159636Soleg if (arg == IP_FW_TABLEARG) \ 122159636Soleg printf("tablearg"); \ 123159636Soleg else \ 124159636Soleg printf("%u", (uint32_t)arg); \ 125159636Soleg} while (0) 126159636Soleg 12798943Sluigi/* 128117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 129117328Sluigi * various places in the parser. Entries are stored in arrays, 130117328Sluigi * with an entry with s=NULL as terminator. 131117328Sluigi * The search routines are match_token() and match_value(). 132117328Sluigi * Often, an element with x=0 contains an error string. 13398943Sluigi * 13498943Sluigi */ 13598943Sluigistruct _s_x { 136117469Sluigi char const *s; 13798943Sluigi int x; 13898943Sluigi}; 13998943Sluigi 14098943Sluigistatic struct _s_x f_tcpflags[] = { 14198943Sluigi { "syn", TH_SYN }, 14298943Sluigi { "fin", TH_FIN }, 14398943Sluigi { "ack", TH_ACK }, 14498943Sluigi { "psh", TH_PUSH }, 14598943Sluigi { "rst", TH_RST }, 14698943Sluigi { "urg", TH_URG }, 14798943Sluigi { "tcp flag", 0 }, 14898943Sluigi { NULL, 0 } 14998943Sluigi}; 15098943Sluigi 15198943Sluigistatic struct _s_x f_tcpopts[] = { 15298943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 15398943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 15498943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 15598943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 15698943Sluigi { "ts", IP_FW_TCPOPT_TS }, 15798943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 15898943Sluigi { "cc", IP_FW_TCPOPT_CC }, 15998943Sluigi { "tcp option", 0 }, 16098943Sluigi { NULL, 0 } 16198943Sluigi}; 16298943Sluigi 16398943Sluigi/* 16498943Sluigi * IP options span the range 0 to 255 so we need to remap them 16598943Sluigi * (though in fact only the low 5 bits are significant). 16698943Sluigi */ 16798943Sluigistatic struct _s_x f_ipopts[] = { 16898943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 16998943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 17098943Sluigi { "rr", IP_FW_IPOPT_RR}, 17198943Sluigi { "ts", IP_FW_IPOPT_TS}, 17298943Sluigi { "ip option", 0 }, 17398943Sluigi { NULL, 0 } 17498943Sluigi}; 17598943Sluigi 17698943Sluigistatic struct _s_x f_iptos[] = { 17798943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 17898943Sluigi { "throughput", IPTOS_THROUGHPUT}, 17998943Sluigi { "reliability", IPTOS_RELIABILITY}, 18098943Sluigi { "mincost", IPTOS_MINCOST}, 18198943Sluigi { "congestion", IPTOS_CE}, 18298943Sluigi { "ecntransport", IPTOS_ECT}, 18398943Sluigi { "ip tos option", 0}, 18498943Sluigi { NULL, 0 } 18598943Sluigi}; 18698943Sluigi 18798943Sluigistatic struct _s_x limit_masks[] = { 18898943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 18998943Sluigi {"src-addr", DYN_SRC_ADDR}, 19098943Sluigi {"src-port", DYN_SRC_PORT}, 19198943Sluigi {"dst-addr", DYN_DST_ADDR}, 19298943Sluigi {"dst-port", DYN_DST_PORT}, 19398943Sluigi {NULL, 0} 19498943Sluigi}; 19598943Sluigi 19698943Sluigi/* 19798943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 19898943Sluigi * This is only used in this code. 19998943Sluigi */ 20098943Sluigi#define IPPROTO_ETHERTYPE 0x1000 20198943Sluigistatic struct _s_x ether_types[] = { 20298943Sluigi /* 20398943Sluigi * Note, we cannot use "-:&/" in the names because they are field 20498943Sluigi * separators in the type specifications. Also, we use s = NULL as 20598943Sluigi * end-delimiter, because a type of 0 can be legal. 20698943Sluigi */ 20798943Sluigi { "ip", 0x0800 }, 20898943Sluigi { "ipv4", 0x0800 }, 20998943Sluigi { "ipv6", 0x86dd }, 21098943Sluigi { "arp", 0x0806 }, 21198943Sluigi { "rarp", 0x8035 }, 21298943Sluigi { "vlan", 0x8100 }, 21398943Sluigi { "loop", 0x9000 }, 21498943Sluigi { "trail", 0x1000 }, 21598943Sluigi { "at", 0x809b }, 21698943Sluigi { "atalk", 0x809b }, 21798943Sluigi { "aarp", 0x80f3 }, 21898943Sluigi { "pppoe_disc", 0x8863 }, 21998943Sluigi { "pppoe_sess", 0x8864 }, 22098943Sluigi { "ipx_8022", 0x00E0 }, 22198943Sluigi { "ipx_8023", 0x0000 }, 22298943Sluigi { "ipx_ii", 0x8137 }, 22398943Sluigi { "ipx_snap", 0x8137 }, 22498943Sluigi { "ipx", 0x8137 }, 22598943Sluigi { "ns", 0x0600 }, 22698943Sluigi { NULL, 0 } 22798943Sluigi}; 22898943Sluigi 22998943Sluigistatic void show_usage(void); 23098943Sluigi 23198943Sluigienum tokens { 23298943Sluigi TOK_NULL=0, 23398943Sluigi 23498943Sluigi TOK_OR, 23598943Sluigi TOK_NOT, 236101641Sluigi TOK_STARTBRACE, 237101641Sluigi TOK_ENDBRACE, 23898943Sluigi 23998943Sluigi TOK_ACCEPT, 24098943Sluigi TOK_COUNT, 24198943Sluigi TOK_PIPE, 24298943Sluigi TOK_QUEUE, 24398943Sluigi TOK_DIVERT, 24498943Sluigi TOK_TEE, 245141351Sglebius TOK_NETGRAPH, 246141351Sglebius TOK_NGTEE, 24798943Sluigi TOK_FORWARD, 24898943Sluigi TOK_SKIPTO, 24998943Sluigi TOK_DENY, 25098943Sluigi TOK_REJECT, 25198943Sluigi TOK_RESET, 25298943Sluigi TOK_UNREACH, 25398943Sluigi TOK_CHECKSTATE, 254165648Spiso TOK_NAT, 25598943Sluigi 256136071Sgreen TOK_ALTQ, 257136071Sgreen TOK_LOG, 258158879Soleg TOK_TAG, 259158879Soleg TOK_UNTAG, 260136071Sgreen 261158879Soleg TOK_TAGGED, 26298943Sluigi TOK_UID, 26398943Sluigi TOK_GID, 264133600Scsjp TOK_JAIL, 26598943Sluigi TOK_IN, 26698943Sluigi TOK_LIMIT, 26798943Sluigi TOK_KEEPSTATE, 26898943Sluigi TOK_LAYER2, 26998943Sluigi TOK_OUT, 270136073Sgreen TOK_DIVERTED, 271136073Sgreen TOK_DIVERTEDLOOPBACK, 272136073Sgreen TOK_DIVERTEDOUTPUT, 27398943Sluigi TOK_XMIT, 27498943Sluigi TOK_RECV, 27598943Sluigi TOK_VIA, 27698943Sluigi TOK_FRAG, 27798943Sluigi TOK_IPOPTS, 27898943Sluigi TOK_IPLEN, 27998943Sluigi TOK_IPID, 28098943Sluigi TOK_IPPRECEDENCE, 28198943Sluigi TOK_IPTOS, 28298943Sluigi TOK_IPTTL, 28398943Sluigi TOK_IPVER, 28498943Sluigi TOK_ESTAB, 28598943Sluigi TOK_SETUP, 286136075Sgreen TOK_TCPDATALEN, 28798943Sluigi TOK_TCPFLAGS, 28898943Sluigi TOK_TCPOPTS, 28998943Sluigi TOK_TCPSEQ, 29098943Sluigi TOK_TCPACK, 29198943Sluigi TOK_TCPWIN, 29298943Sluigi TOK_ICMPTYPES, 293102087Sluigi TOK_MAC, 294102087Sluigi TOK_MACTYPE, 295112250Scjc TOK_VERREVPATH, 296128575Sandre TOK_VERSRCREACH, 297133387Sandre TOK_ANTISPOOF, 298117241Sluigi TOK_IPSEC, 299117469Sluigi TOK_COMMENT, 30098943Sluigi 30198943Sluigi TOK_PLR, 302101978Sluigi TOK_NOERROR, 30398943Sluigi TOK_BUCKETS, 30498943Sluigi TOK_DSTIP, 30598943Sluigi TOK_SRCIP, 30698943Sluigi TOK_DSTPORT, 30798943Sluigi TOK_SRCPORT, 30898943Sluigi TOK_ALL, 30998943Sluigi TOK_MASK, 31098943Sluigi TOK_BW, 31198943Sluigi TOK_DELAY, 31298943Sluigi TOK_RED, 31398943Sluigi TOK_GRED, 31498943Sluigi TOK_DROPTAIL, 31598943Sluigi TOK_PROTO, 31698943Sluigi TOK_WEIGHT, 317165648Spiso TOK_IP, 318165648Spiso TOK_IF, 319165648Spiso TOK_ALOG, 320165648Spiso TOK_DENY_INC, 321165648Spiso TOK_SAME_PORTS, 322165648Spiso TOK_UNREG_ONLY, 323165648Spiso TOK_RESET_ADDR, 324165648Spiso TOK_ALIAS_REV, 325165648Spiso TOK_PROXY_ONLY, 326165648Spiso TOK_REDIR_ADDR, 327165648Spiso TOK_REDIR_PORT, 328165648Spiso TOK_REDIR_PROTO, 329145246Sbrooks 330145246Sbrooks TOK_IPV6, 331145246Sbrooks TOK_FLOWID, 332145246Sbrooks TOK_ICMP6TYPES, 333145246Sbrooks TOK_EXT6HDR, 334145246Sbrooks TOK_DSTIP6, 335145246Sbrooks TOK_SRCIP6, 336146894Smlaier 337146894Smlaier TOK_IPV4, 338149020Sbz TOK_UNREACH6, 339149020Sbz TOK_RESET6, 34098943Sluigi}; 34198943Sluigi 34298943Sluigistruct _s_x dummynet_params[] = { 34398943Sluigi { "plr", TOK_PLR }, 344101978Sluigi { "noerror", TOK_NOERROR }, 34598943Sluigi { "buckets", TOK_BUCKETS }, 34698943Sluigi { "dst-ip", TOK_DSTIP }, 34798943Sluigi { "src-ip", TOK_SRCIP }, 34898943Sluigi { "dst-port", TOK_DSTPORT }, 34998943Sluigi { "src-port", TOK_SRCPORT }, 35098943Sluigi { "proto", TOK_PROTO }, 35198943Sluigi { "weight", TOK_WEIGHT }, 35298943Sluigi { "all", TOK_ALL }, 35398943Sluigi { "mask", TOK_MASK }, 35498943Sluigi { "droptail", TOK_DROPTAIL }, 35598943Sluigi { "red", TOK_RED }, 35698943Sluigi { "gred", TOK_GRED }, 35798943Sluigi { "bw", TOK_BW }, 35898943Sluigi { "bandwidth", TOK_BW }, 35998943Sluigi { "delay", TOK_DELAY }, 36099475Sluigi { "pipe", TOK_PIPE }, 36198943Sluigi { "queue", TOK_QUEUE }, 362145246Sbrooks { "flow-id", TOK_FLOWID}, 363145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 364145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 365145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 366145246Sbrooks { "src-ip6", TOK_SRCIP6}, 36798943Sluigi { "dummynet-params", TOK_NULL }, 368117328Sluigi { NULL, 0 } /* terminator */ 36998943Sluigi}; 37098943Sluigi 371165648Spisostruct _s_x nat_params[] = { 372165648Spiso { "ip", TOK_IP }, 373165648Spiso { "if", TOK_IF }, 374165648Spiso { "log", TOK_ALOG }, 375165648Spiso { "deny_in", TOK_DENY_INC }, 376165648Spiso { "same_ports", TOK_SAME_PORTS }, 377165648Spiso { "unreg_only", TOK_UNREG_ONLY }, 378165648Spiso { "reset", TOK_RESET_ADDR }, 379165648Spiso { "reverse", TOK_ALIAS_REV }, 380165648Spiso { "proxy_only", TOK_PROXY_ONLY }, 381165648Spiso { "redirect_addr", TOK_REDIR_ADDR }, 382165648Spiso { "redirect_port", TOK_REDIR_PORT }, 383165648Spiso { "redirect_proto", TOK_REDIR_PROTO }, 384165648Spiso { NULL, 0 } /* terminator */ 385165648Spiso}; 386165648Spiso 38798943Sluigistruct _s_x rule_actions[] = { 38898943Sluigi { "accept", TOK_ACCEPT }, 38998943Sluigi { "pass", TOK_ACCEPT }, 39098943Sluigi { "allow", TOK_ACCEPT }, 39198943Sluigi { "permit", TOK_ACCEPT }, 39298943Sluigi { "count", TOK_COUNT }, 39398943Sluigi { "pipe", TOK_PIPE }, 39498943Sluigi { "queue", TOK_QUEUE }, 39598943Sluigi { "divert", TOK_DIVERT }, 39698943Sluigi { "tee", TOK_TEE }, 397141351Sglebius { "netgraph", TOK_NETGRAPH }, 398141351Sglebius { "ngtee", TOK_NGTEE }, 39998943Sluigi { "fwd", TOK_FORWARD }, 40098943Sluigi { "forward", TOK_FORWARD }, 40198943Sluigi { "skipto", TOK_SKIPTO }, 40298943Sluigi { "deny", TOK_DENY }, 40398943Sluigi { "drop", TOK_DENY }, 40498943Sluigi { "reject", TOK_REJECT }, 405149020Sbz { "reset6", TOK_RESET6 }, 40698943Sluigi { "reset", TOK_RESET }, 407149020Sbz { "unreach6", TOK_UNREACH6 }, 40899475Sluigi { "unreach", TOK_UNREACH }, 40998943Sluigi { "check-state", TOK_CHECKSTATE }, 410117469Sluigi { "//", TOK_COMMENT }, 411165648Spiso { "nat", TOK_NAT }, 412117328Sluigi { NULL, 0 } /* terminator */ 41398943Sluigi}; 41498943Sluigi 415136071Sgreenstruct _s_x rule_action_params[] = { 416136071Sgreen { "altq", TOK_ALTQ }, 417136071Sgreen { "log", TOK_LOG }, 418158879Soleg { "tag", TOK_TAG }, 419158879Soleg { "untag", TOK_UNTAG }, 420136071Sgreen { NULL, 0 } /* terminator */ 421136071Sgreen}; 422136071Sgreen 42398943Sluigistruct _s_x rule_options[] = { 424158879Soleg { "tagged", TOK_TAGGED }, 42598943Sluigi { "uid", TOK_UID }, 42698943Sluigi { "gid", TOK_GID }, 427133600Scsjp { "jail", TOK_JAIL }, 42898943Sluigi { "in", TOK_IN }, 42998943Sluigi { "limit", TOK_LIMIT }, 43098943Sluigi { "keep-state", TOK_KEEPSTATE }, 43198943Sluigi { "bridged", TOK_LAYER2 }, 43298943Sluigi { "layer2", TOK_LAYER2 }, 43398943Sluigi { "out", TOK_OUT }, 434136073Sgreen { "diverted", TOK_DIVERTED }, 435136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 436136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 43798943Sluigi { "xmit", TOK_XMIT }, 43898943Sluigi { "recv", TOK_RECV }, 43998943Sluigi { "via", TOK_VIA }, 44098943Sluigi { "fragment", TOK_FRAG }, 44198943Sluigi { "frag", TOK_FRAG }, 44298943Sluigi { "ipoptions", TOK_IPOPTS }, 44398943Sluigi { "ipopts", TOK_IPOPTS }, 44498943Sluigi { "iplen", TOK_IPLEN }, 44598943Sluigi { "ipid", TOK_IPID }, 44698943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 44798943Sluigi { "iptos", TOK_IPTOS }, 44898943Sluigi { "ipttl", TOK_IPTTL }, 44998943Sluigi { "ipversion", TOK_IPVER }, 45098943Sluigi { "ipver", TOK_IPVER }, 45198943Sluigi { "estab", TOK_ESTAB }, 45298943Sluigi { "established", TOK_ESTAB }, 45398943Sluigi { "setup", TOK_SETUP }, 454136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 45598943Sluigi { "tcpflags", TOK_TCPFLAGS }, 45698943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 45798943Sluigi { "tcpoptions", TOK_TCPOPTS }, 45898943Sluigi { "tcpopts", TOK_TCPOPTS }, 45998943Sluigi { "tcpseq", TOK_TCPSEQ }, 46098943Sluigi { "tcpack", TOK_TCPACK }, 46198943Sluigi { "tcpwin", TOK_TCPWIN }, 46299909Sluigi { "icmptype", TOK_ICMPTYPES }, 46398943Sluigi { "icmptypes", TOK_ICMPTYPES }, 464102087Sluigi { "dst-ip", TOK_DSTIP }, 465102087Sluigi { "src-ip", TOK_SRCIP }, 466102087Sluigi { "dst-port", TOK_DSTPORT }, 467102087Sluigi { "src-port", TOK_SRCPORT }, 468102087Sluigi { "proto", TOK_PROTO }, 469102087Sluigi { "MAC", TOK_MAC }, 470102087Sluigi { "mac", TOK_MAC }, 471102087Sluigi { "mac-type", TOK_MACTYPE }, 472112250Scjc { "verrevpath", TOK_VERREVPATH }, 473128575Sandre { "versrcreach", TOK_VERSRCREACH }, 474133387Sandre { "antispoof", TOK_ANTISPOOF }, 475117241Sluigi { "ipsec", TOK_IPSEC }, 476145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 477145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 478145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 479145246Sbrooks { "flow-id", TOK_FLOWID}, 480145246Sbrooks { "ipv6", TOK_IPV6}, 481145246Sbrooks { "ip6", TOK_IPV6}, 482146894Smlaier { "ipv4", TOK_IPV4}, 483146894Smlaier { "ip4", TOK_IPV4}, 484145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 485145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 486145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 487145246Sbrooks { "src-ip6", TOK_SRCIP6}, 488117469Sluigi { "//", TOK_COMMENT }, 48998943Sluigi 49098943Sluigi { "not", TOK_NOT }, /* pseudo option */ 49198943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 49298943Sluigi { "or", TOK_OR }, /* pseudo option */ 49398943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 494101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 495101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 496101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 497101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 498117328Sluigi { NULL, 0 } /* terminator */ 49998943Sluigi}; 50098943Sluigi 501153374Sglebius#define TABLEARG "tablearg" 502153374Sglebius 503117328Sluigistatic __inline uint64_t 504117328Sluigialign_uint64(uint64_t *pll) { 505117328Sluigi uint64_t ret; 506115793Sticso 507115793Sticso bcopy (pll, &ret, sizeof(ret)); 508115793Sticso return ret; 509129389Sstefanf} 510115793Sticso 511117328Sluigi/* 512117328Sluigi * conditionally runs the command. 513117328Sluigi */ 514117469Sluigistatic int 515119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 516117328Sluigi{ 517117328Sluigi static int s = -1; /* the socket */ 518117328Sluigi int i; 519117577Sluigi 520117328Sluigi if (test_only) 521117328Sluigi return 0; 522117328Sluigi 523117328Sluigi if (s == -1) 524117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 525117328Sluigi if (s < 0) 526117328Sluigi err(EX_UNAVAILABLE, "socket"); 527117328Sluigi 528117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 529130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 530165648Spiso optname == IP_FW_TABLE_GETSIZE || 531165648Spiso optname == IP_FW_NAT_GET_CONFIG || 532165648Spiso optname == IP_FW_NAT_GET_LOG) 533117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 534117328Sluigi (socklen_t *)optlen); 535117328Sluigi else 536117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 537117328Sluigi return i; 538117328Sluigi} 539117328Sluigi 54098943Sluigi/** 54198943Sluigi * match_token takes a table and a string, returns the value associated 542117328Sluigi * with the string (-1 in case of failure). 54398943Sluigi */ 54498943Sluigistatic int 54598943Sluigimatch_token(struct _s_x *table, char *string) 54698943Sluigi{ 54798943Sluigi struct _s_x *pt; 548117469Sluigi uint i = strlen(string); 54998943Sluigi 55098943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 55198943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 55298943Sluigi return pt->x; 55398943Sluigi return -1; 554129389Sstefanf} 55598943Sluigi 556117328Sluigi/** 557117328Sluigi * match_value takes a table and a value, returns the string associated 558117328Sluigi * with the value (NULL in case of failure). 559117328Sluigi */ 560117469Sluigistatic char const * 561117469Sluigimatch_value(struct _s_x *p, int value) 56298943Sluigi{ 56398943Sluigi for (; p->s != NULL; p++) 56498943Sluigi if (p->x == value) 56598943Sluigi return p->s; 56698943Sluigi return NULL; 56798943Sluigi} 56898943Sluigi 56998943Sluigi/* 570140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 571140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 572140271Sbrooks * of the second. A warning is printed to stderr in the case that the 573140271Sbrooks * first string is a sub-string of the second. 574140271Sbrooks * 575140271Sbrooks * This function will be removed in the future through the usual 576140271Sbrooks * deprecation process. 577140271Sbrooks */ 578140271Sbrooksstatic int 579140271Sbrooks_substrcmp(const char *str1, const char* str2) 580140271Sbrooks{ 581140271Sbrooks 582140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 583140271Sbrooks return 1; 584140271Sbrooks 585140271Sbrooks if (strlen(str1) != strlen(str2)) 586140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 587140271Sbrooks str1, str2); 588140271Sbrooks return 0; 589140271Sbrooks} 590140271Sbrooks 591140271Sbrooks/* 592140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 593140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 594140271Sbrooks * of the first. A warning is printed to stderr in the case that the 595140271Sbrooks * first string does not match the third. 596140271Sbrooks * 597140271Sbrooks * This function exists to warn about the bizzare construction 598140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 599140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 600140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 601140271Sbrooks * other string beginning with "by". 602140271Sbrooks * 603140271Sbrooks * This function will be removed in the future through the usual 604140271Sbrooks * deprecation process. 605140271Sbrooks */ 606140271Sbrooksstatic int 607140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 608140271Sbrooks{ 609140271Sbrooks 610140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 611140271Sbrooks return 1; 612140271Sbrooks 613140271Sbrooks if (strcmp(str1, str3) != 0) 614140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 615140271Sbrooks str1, str3); 616140271Sbrooks return 0; 617140271Sbrooks} 618140271Sbrooks 619140271Sbrooks/* 62098943Sluigi * prints one port, symbolic or numeric 62198943Sluigi */ 62298943Sluigistatic void 623117328Sluigiprint_port(int proto, uint16_t port) 62498943Sluigi{ 62598943Sluigi 62698943Sluigi if (proto == IPPROTO_ETHERTYPE) { 627117469Sluigi char const *s; 62898943Sluigi 62998943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 63098943Sluigi printf("%s", s); 63198943Sluigi else 63298943Sluigi printf("0x%04x", port); 63398943Sluigi } else { 63498943Sluigi struct servent *se = NULL; 63598943Sluigi if (do_resolv) { 63698943Sluigi struct protoent *pe = getprotobynumber(proto); 63798943Sluigi 63898943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 63998943Sluigi } 64098943Sluigi if (se) 64198943Sluigi printf("%s", se->s_name); 64298943Sluigi else 64398943Sluigi printf("%d", port); 64498943Sluigi } 64598943Sluigi} 64698943Sluigi 647117328Sluigistruct _s_x _port_name[] = { 648117328Sluigi {"dst-port", O_IP_DSTPORT}, 649117328Sluigi {"src-port", O_IP_SRCPORT}, 650117328Sluigi {"ipid", O_IPID}, 651117328Sluigi {"iplen", O_IPLEN}, 652117328Sluigi {"ipttl", O_IPTTL}, 653117328Sluigi {"mac-type", O_MAC_TYPE}, 654136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 655158879Soleg {"tagged", O_TAGGED}, 656117328Sluigi {NULL, 0} 657117328Sluigi}; 658117328Sluigi 65998943Sluigi/* 660117328Sluigi * Print the values in a list 16-bit items of the types above. 66198943Sluigi * XXX todo: add support for mask. 66298943Sluigi */ 66398943Sluigistatic void 664102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 66598943Sluigi{ 666117328Sluigi uint16_t *p = cmd->ports; 66798943Sluigi int i; 668117469Sluigi char const *sep; 66998943Sluigi 67098943Sluigi if (cmd->o.len & F_NOT) 67198943Sluigi printf(" not"); 672116690Sluigi if (opcode != 0) { 673117328Sluigi sep = match_value(_port_name, opcode); 674117328Sluigi if (sep == NULL) 675116690Sluigi sep = "???"; 676116690Sluigi printf (" %s", sep); 677116690Sluigi } 678116690Sluigi sep = " "; 67998943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 68098943Sluigi printf(sep); 68198943Sluigi print_port(proto, p[0]); 68298943Sluigi if (p[0] != p[1]) { 68398943Sluigi printf("-"); 68498943Sluigi print_port(proto, p[1]); 68598943Sluigi } 68698943Sluigi sep = ","; 68798943Sluigi } 68898943Sluigi} 68998943Sluigi 69098943Sluigi/* 69198943Sluigi * Like strtol, but also translates service names into port numbers 69298943Sluigi * for some protocols. 69398943Sluigi * In particular: 69498943Sluigi * proto == -1 disables the protocol check; 69598943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 69698943Sluigi * proto == <some value in /etc/protocols> matches the values there. 697101628Sluigi * Returns *end == s in case the parameter is not found. 69898943Sluigi */ 69998943Sluigistatic int 70098943Sluigistrtoport(char *s, char **end, int base, int proto) 70198943Sluigi{ 702101628Sluigi char *p, *buf; 703101628Sluigi char *s1; 70498943Sluigi int i; 70598943Sluigi 706101628Sluigi *end = s; /* default - not found */ 707117577Sluigi if (*s == '\0') 708101628Sluigi return 0; /* not found */ 709106505Smaxim 71098943Sluigi if (isdigit(*s)) 71198943Sluigi return strtol(s, end, base); 71298943Sluigi 71398943Sluigi /* 714101628Sluigi * find separator. '\\' escapes the next char. 71598943Sluigi */ 716101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 717101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 718101628Sluigi s1++; 71998943Sluigi 720101628Sluigi buf = malloc(s1 - s + 1); 721101628Sluigi if (buf == NULL) 722101628Sluigi return 0; 723101628Sluigi 724101628Sluigi /* 725101628Sluigi * copy into a buffer skipping backslashes 726101628Sluigi */ 727101628Sluigi for (p = s, i = 0; p != s1 ; p++) 728117577Sluigi if (*p != '\\') 729101628Sluigi buf[i++] = *p; 730101628Sluigi buf[i++] = '\0'; 731101628Sluigi 73298943Sluigi if (proto == IPPROTO_ETHERTYPE) { 733101628Sluigi i = match_token(ether_types, buf); 734101628Sluigi free(buf); 735101628Sluigi if (i != -1) { /* found */ 73698943Sluigi *end = s1; 73798943Sluigi return i; 73898943Sluigi } 73998943Sluigi } else { 74098943Sluigi struct protoent *pe = NULL; 74198943Sluigi struct servent *se; 74298943Sluigi 74398943Sluigi if (proto != 0) 74498943Sluigi pe = getprotobynumber(proto); 74598943Sluigi setservent(1); 746101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 747101628Sluigi free(buf); 74898943Sluigi if (se != NULL) { 74998943Sluigi *end = s1; 75098943Sluigi return ntohs(se->s_port); 75198943Sluigi } 75298943Sluigi } 753101628Sluigi return 0; /* not found */ 75498943Sluigi} 75598943Sluigi 75698943Sluigi/* 757136071Sgreen * Map between current altq queue id numbers and names. 758136071Sgreen */ 759136071Sgreenstatic int altq_fetched = 0; 760136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 761136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 762136071Sgreen 763136071Sgreenstatic void 764136071Sgreenaltq_set_enabled(int enabled) 765136071Sgreen{ 766136071Sgreen int pffd; 767136071Sgreen 768136071Sgreen pffd = open("/dev/pf", O_RDWR); 769136071Sgreen if (pffd == -1) 770136071Sgreen err(EX_UNAVAILABLE, 771136071Sgreen "altq support opening pf(4) control device"); 772136071Sgreen if (enabled) { 773136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 774136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 775136071Sgreen } else { 776136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 777136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 778136071Sgreen } 779136071Sgreen close(pffd); 780136071Sgreen} 781136071Sgreen 782136071Sgreenstatic void 783136071Sgreenaltq_fetch() 784136071Sgreen{ 785136071Sgreen struct pfioc_altq pfioc; 786136071Sgreen struct pf_altq *altq; 787136071Sgreen int pffd, mnr; 788136071Sgreen 789136071Sgreen if (altq_fetched) 790136071Sgreen return; 791136071Sgreen altq_fetched = 1; 792136071Sgreen pffd = open("/dev/pf", O_RDONLY); 793136071Sgreen if (pffd == -1) { 794136071Sgreen warn("altq support opening pf(4) control device"); 795136071Sgreen return; 796136071Sgreen } 797136071Sgreen bzero(&pfioc, sizeof(pfioc)); 798136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 799136071Sgreen warn("altq support getting queue list"); 800136071Sgreen close(pffd); 801136071Sgreen return; 802136071Sgreen } 803136071Sgreen mnr = pfioc.nr; 804136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 805136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 806136071Sgreen if (errno == EBUSY) 807136071Sgreen break; 808136071Sgreen warn("altq support getting queue list"); 809136071Sgreen close(pffd); 810136071Sgreen return; 811136071Sgreen } 812136071Sgreen if (pfioc.altq.qid == 0) 813136071Sgreen continue; 814136071Sgreen altq = malloc(sizeof(*altq)); 815136071Sgreen if (altq == NULL) 816136071Sgreen err(EX_OSERR, "malloc"); 817136071Sgreen *altq = pfioc.altq; 818136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 819136071Sgreen } 820136071Sgreen close(pffd); 821136071Sgreen} 822136071Sgreen 823136071Sgreenstatic u_int32_t 824136071Sgreenaltq_name_to_qid(const char *name) 825136071Sgreen{ 826136071Sgreen struct pf_altq *altq; 827136071Sgreen 828136071Sgreen altq_fetch(); 829136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 830136071Sgreen if (strcmp(name, altq->qname) == 0) 831136071Sgreen break; 832136071Sgreen if (altq == NULL) 833136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 834136071Sgreen return altq->qid; 835136071Sgreen} 836136071Sgreen 837136071Sgreenstatic const char * 838136071Sgreenaltq_qid_to_name(u_int32_t qid) 839136071Sgreen{ 840136071Sgreen struct pf_altq *altq; 841136071Sgreen 842136071Sgreen altq_fetch(); 843136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 844136071Sgreen if (qid == altq->qid) 845136071Sgreen break; 846136071Sgreen if (altq == NULL) 847136071Sgreen return NULL; 848136071Sgreen return altq->qname; 849136071Sgreen} 850136071Sgreen 851136071Sgreenstatic void 852136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 853136071Sgreen{ 854136071Sgreen *qid = altq_name_to_qid(av); 855136071Sgreen} 856136071Sgreen 857136071Sgreen/* 858117328Sluigi * Fill the body of the command with the list of port ranges. 85998943Sluigi */ 86098943Sluigistatic int 86198943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 86298943Sluigi{ 863117328Sluigi uint16_t a, b, *p = cmd->ports; 86498943Sluigi int i = 0; 865102087Sluigi char *s = av; 86698943Sluigi 867102087Sluigi while (*s) { 86898943Sluigi a = strtoport(av, &s, 0, proto); 869159636Soleg if (s == av) /* empty or invalid argument */ 870159636Soleg return (0); 871159636Soleg 872159636Soleg switch (*s) { 873159636Soleg case '-': /* a range */ 874159636Soleg av = s + 1; 87598943Sluigi b = strtoport(av, &s, 0, proto); 876159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 877159636Soleg if (s == av || (*s != ',' && *s != '\0')) 878159636Soleg return (0); 87998943Sluigi p[0] = a; 88098943Sluigi p[1] = b; 881159636Soleg break; 882159636Soleg case ',': /* comma separated list */ 883159636Soleg case '\0': 88498943Sluigi p[0] = p[1] = a; 885159636Soleg break; 886159636Soleg default: 887159636Soleg warnx("port list: invalid separator <%c> in <%s>", 888101978Sluigi *s, av); 889159636Soleg return (0); 890159636Soleg } 891159636Soleg 892102087Sluigi i++; 893102087Sluigi p += 2; 894159636Soleg av = s + 1; 89598943Sluigi } 89698943Sluigi if (i > 0) { 897159636Soleg if (i + 1 > F_LEN_MASK) 898102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 899159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 90098943Sluigi } 901159636Soleg return (i); 90298943Sluigi} 90398943Sluigi 90498943Sluigistatic struct _s_x icmpcodes[] = { 90598943Sluigi { "net", ICMP_UNREACH_NET }, 90698943Sluigi { "host", ICMP_UNREACH_HOST }, 90798943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 90898943Sluigi { "port", ICMP_UNREACH_PORT }, 90998943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 91098943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 91198943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 91298943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 91398943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 91498943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 91598943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 91698943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 91798943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 91898943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 91998943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 92098943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 92198943Sluigi { NULL, 0 } 92298943Sluigi}; 92398943Sluigi 92498943Sluigistatic void 92598943Sluigifill_reject_code(u_short *codep, char *str) 92698943Sluigi{ 92798943Sluigi int val; 92898943Sluigi char *s; 92998943Sluigi 93098943Sluigi val = strtoul(str, &s, 0); 93198943Sluigi if (s == str || *s != '\0' || val >= 0x100) 93298943Sluigi val = match_token(icmpcodes, str); 933102087Sluigi if (val < 0) 93498943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 93598943Sluigi *codep = val; 93698943Sluigi return; 93798943Sluigi} 93898943Sluigi 93998943Sluigistatic void 940117328Sluigiprint_reject_code(uint16_t code) 94198943Sluigi{ 942117469Sluigi char const *s = match_value(icmpcodes, code); 94398943Sluigi 94498943Sluigi if (s != NULL) 94599475Sluigi printf("unreach %s", s); 94698943Sluigi else 94799475Sluigi printf("unreach %u", code); 94898943Sluigi} 94998943Sluigi 950149020Sbzstatic struct _s_x icmp6codes[] = { 951149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 952149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 953149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 954149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 955149020Sbz { NULL, 0 } 956149020Sbz}; 957149020Sbz 958149020Sbzstatic void 959149020Sbzfill_unreach6_code(u_short *codep, char *str) 960149020Sbz{ 961149020Sbz int val; 962149020Sbz char *s; 963149020Sbz 964149020Sbz val = strtoul(str, &s, 0); 965149020Sbz if (s == str || *s != '\0' || val >= 0x100) 966149020Sbz val = match_token(icmp6codes, str); 967149020Sbz if (val < 0) 968149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 969149020Sbz *codep = val; 970149020Sbz return; 971149020Sbz} 972149020Sbz 973149020Sbzstatic void 974149020Sbzprint_unreach6_code(uint16_t code) 975149020Sbz{ 976149020Sbz char const *s = match_value(icmp6codes, code); 977149020Sbz 978149020Sbz if (s != NULL) 979149020Sbz printf("unreach6 %s", s); 980149020Sbz else 981149020Sbz printf("unreach6 %u", code); 982149020Sbz} 983149020Sbz 98498943Sluigi/* 98598943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 98698943Sluigi * or -1 if the mask is not contiguous. 98798943Sluigi * XXX this needs a proper fix. 98898943Sluigi * This effectively works on masks in big-endian (network) format. 98998943Sluigi * when compiled on little endian architectures. 99098943Sluigi * 99198943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 99298943Sluigi * the first bit on the wire is bit 0 of the first byte. 99398943Sluigi * len is the max length in bits. 99498943Sluigi */ 99598943Sluigistatic int 996117577Sluigicontigmask(uint8_t *p, int len) 99798943Sluigi{ 99898943Sluigi int i, n; 999117577Sluigi 100098943Sluigi for (i=0; i<len ; i++) 100198943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 100298943Sluigi break; 100398943Sluigi for (n=i+1; n < len; n++) 100498943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 100598943Sluigi return -1; /* mask not contiguous */ 100698943Sluigi return i; 100798943Sluigi} 100898943Sluigi 100998943Sluigi/* 101098943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 101198943Sluigi * There is a specialized check for f_tcpflags. 101298943Sluigi */ 101398943Sluigistatic void 1014117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 101598943Sluigi{ 1016117469Sluigi char const *comma = ""; 101798943Sluigi int i; 1018117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1019117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 102098943Sluigi 102198943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 102298943Sluigi printf(" setup"); 102398943Sluigi return; 102498943Sluigi } 102598943Sluigi 102698943Sluigi printf(" %s ", name); 102798943Sluigi for (i=0; list[i].x != 0; i++) { 102898943Sluigi if (set & list[i].x) { 102998943Sluigi set &= ~list[i].x; 103098943Sluigi printf("%s%s", comma, list[i].s); 103198943Sluigi comma = ","; 103298943Sluigi } 103398943Sluigi if (clear & list[i].x) { 103498943Sluigi clear &= ~list[i].x; 103598943Sluigi printf("%s!%s", comma, list[i].s); 103698943Sluigi comma = ","; 103798943Sluigi } 103898943Sluigi } 103998943Sluigi} 104098943Sluigi 104198943Sluigi/* 104298943Sluigi * Print the ip address contained in a command. 104398943Sluigi */ 104498943Sluigistatic void 1045117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 104698943Sluigi{ 104798943Sluigi struct hostent *he = NULL; 1048117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1049117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 105098943Sluigi 1051102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 105298943Sluigi 105398943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 105498943Sluigi printf("me"); 105598943Sluigi return; 105698943Sluigi } 1057130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1058130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1059130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1060130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1061130281Sru printf(",%u", *a); 1062130281Sru printf(")"); 1063130281Sru return; 1064130281Sru } 106598943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1066117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1067116716Sluigi int i, j; 106898943Sluigi char comma = '{'; 106998943Sluigi 107098943Sluigi x = cmd->o.arg1 - 1; 107198943Sluigi x = htonl( ~x ); 107298943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107398943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1074117577Sluigi contigmask((uint8_t *)&x, 32)); 107598943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 107698943Sluigi x &= 0xff; /* base */ 1077116716Sluigi /* 1078116716Sluigi * Print bits and ranges. 1079116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1080116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1081116716Sluigi * range, otherwise only print the initial bit and rescan. 1082116716Sluigi */ 108398943Sluigi for (i=0; i < cmd->o.arg1; i++) 1084117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1085116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1086117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1087116716Sluigi break; 108898943Sluigi printf("%c%d", comma, i+x); 1089116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1090116716Sluigi printf("-%d", j-1+x); 1091116716Sluigi i = j-1; 1092116716Sluigi } 109398943Sluigi comma = ','; 109498943Sluigi } 109598943Sluigi printf("}"); 109698943Sluigi return; 109798943Sluigi } 1098117328Sluigi /* 1099117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1100117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1101117328Sluigi * use that to count the number of entries. 1102117328Sluigi */ 1103117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1104117328Sluigi int mb = /* mask length */ 1105117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1106117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 110798943Sluigi if (mb == 32 && do_resolv) 1108117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 110998943Sluigi if (he != NULL) /* resolved to name */ 111098943Sluigi printf("%s", he->h_name); 111198943Sluigi else if (mb == 0) /* any */ 111298943Sluigi printf("any"); 111398943Sluigi else { /* numeric IP followed by some kind of mask */ 1114117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 111598943Sluigi if (mb < 0) 1116117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 111798943Sluigi else if (mb < 32) 111898943Sluigi printf("/%d", mb); 111998943Sluigi } 1120117328Sluigi if (len > 1) 1121117328Sluigi printf(","); 1122117328Sluigi } 112398943Sluigi} 112498943Sluigi 112598943Sluigi/* 112698943Sluigi * prints a MAC address/mask pair 112798943Sluigi */ 112898943Sluigistatic void 1129117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 113098943Sluigi{ 113198943Sluigi int l = contigmask(mask, 48); 113298943Sluigi 113398943Sluigi if (l == 0) 113498943Sluigi printf(" any"); 113598943Sluigi else { 113698943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 113798943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 113898943Sluigi if (l == -1) 113998943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 114098943Sluigi mask[0], mask[1], mask[2], 114198943Sluigi mask[3], mask[4], mask[5]); 114298943Sluigi else if (l < 48) 114398943Sluigi printf("/%d", l); 114498943Sluigi } 114598943Sluigi} 114698943Sluigi 114799475Sluigistatic void 114899475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 114999475Sluigi{ 1150117328Sluigi uint8_t type; 115198943Sluigi 115299475Sluigi cmd->d[0] = 0; 115399475Sluigi while (*av) { 115499475Sluigi if (*av == ',') 115599475Sluigi av++; 115699475Sluigi 115799475Sluigi type = strtoul(av, &av, 0); 115899475Sluigi 115999475Sluigi if (*av != ',' && *av != '\0') 116099475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 116199475Sluigi 116299475Sluigi if (type > 31) 116399475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 116499475Sluigi 116599475Sluigi cmd->d[0] |= 1 << type; 116699475Sluigi } 116799475Sluigi cmd->o.opcode = O_ICMPTYPE; 116899475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 116999475Sluigi} 117099475Sluigi 117199475Sluigistatic void 117299475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 117399475Sluigi{ 117499475Sluigi int i; 117599475Sluigi char sep= ' '; 117699475Sluigi 117799475Sluigi printf(" icmptypes"); 117899475Sluigi for (i = 0; i < 32; i++) { 117999475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 118099475Sluigi continue; 118199475Sluigi printf("%c%d", sep, i); 118299475Sluigi sep = ','; 118399475Sluigi } 118499475Sluigi} 118599475Sluigi 1186145246Sbrooks/* 1187145246Sbrooks * Print the ip address contained in a command. 1188145246Sbrooks */ 1189145246Sbrooksstatic void 1190145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1191145246Sbrooks{ 1192145246Sbrooks struct hostent *he = NULL; 1193145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1194145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1195145246Sbrooks char trad[255]; 1196145246Sbrooks 1197145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1198145246Sbrooks 1199145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1200145246Sbrooks printf("me6"); 1201145246Sbrooks return; 1202145246Sbrooks } 1203145246Sbrooks if (cmd->o.opcode == O_IP6) { 1204152923Sume printf(" ip6"); 1205145246Sbrooks return; 1206145246Sbrooks } 1207145246Sbrooks 1208145246Sbrooks /* 1209145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1210145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1211145246Sbrooks * use that to count the number of entries. 1212145246Sbrooks */ 1213145246Sbrooks 1214145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1215145246Sbrooks int mb = /* mask length */ 1216145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1217145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1218145246Sbrooks 1219145246Sbrooks if (mb == 128 && do_resolv) 1220145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1221145246Sbrooks if (he != NULL) /* resolved to name */ 1222145246Sbrooks printf("%s", he->h_name); 1223145246Sbrooks else if (mb == 0) /* any */ 1224145246Sbrooks printf("any"); 1225145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1226145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1227145246Sbrooks printf("Error ntop in print_ip6\n"); 1228145246Sbrooks printf("%s", trad ); 1229145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1230145246Sbrooks printf(":%s", 1231145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1232145246Sbrooks else if (mb < 128) 1233145246Sbrooks printf("/%d", mb); 1234145246Sbrooks } 1235145246Sbrooks if (len > 2) 1236145246Sbrooks printf(","); 1237145246Sbrooks } 1238145246Sbrooks} 1239145246Sbrooks 1240145246Sbrooksstatic void 1241145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1242145246Sbrooks{ 1243145246Sbrooks uint8_t type; 1244145246Sbrooks 1245162344Sjhay bzero(cmd, sizeof(*cmd)); 1246145246Sbrooks while (*av) { 1247145246Sbrooks if (*av == ',') 1248145246Sbrooks av++; 1249145246Sbrooks type = strtoul(av, &av, 0); 1250145246Sbrooks if (*av != ',' && *av != '\0') 1251145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1252145246Sbrooks /* 1253145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1254145246Sbrooks * we shouldn't be able to filter all possiable values 1255145246Sbrooks * regardless of the ability of the rest of the kernel to do 1256145246Sbrooks * anything useful with them. 1257145246Sbrooks */ 1258145246Sbrooks if (type > ICMP6_MAXTYPE) 1259145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1260145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1261145246Sbrooks } 1262145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1263145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1264145246Sbrooks} 1265145246Sbrooks 1266145246Sbrooks 1267145246Sbrooksstatic void 1268145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1269145246Sbrooks{ 1270145246Sbrooks int i, j; 1271145246Sbrooks char sep= ' '; 1272145246Sbrooks 1273152923Sume printf(" ip6 icmp6types"); 1274145246Sbrooks for (i = 0; i < 7; i++) 1275145246Sbrooks for (j=0; j < 32; ++j) { 1276145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1277145246Sbrooks continue; 1278145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1279145246Sbrooks sep = ','; 1280145246Sbrooks } 1281145246Sbrooks} 1282145246Sbrooks 1283145246Sbrooksstatic void 1284145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1285145246Sbrooks{ 1286145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1287145246Sbrooks char sep = ','; 1288145246Sbrooks 1289145246Sbrooks printf(" flow-id "); 1290145246Sbrooks for( i=0; i < limit; ++i) { 1291145246Sbrooks if (i == limit - 1) 1292145246Sbrooks sep = ' '; 1293145246Sbrooks printf("%d%c", cmd->d[i], sep); 1294145246Sbrooks } 1295145246Sbrooks} 1296145246Sbrooks 1297145246Sbrooks/* structure and define for the extension header in ipv6 */ 1298145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1299145246Sbrooks { "frag", EXT_FRAGMENT }, 1300145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1301145246Sbrooks { "route", EXT_ROUTING }, 1302149020Sbz { "dstopt", EXT_DSTOPTS }, 1303145246Sbrooks { "ah", EXT_AH }, 1304145246Sbrooks { "esp", EXT_ESP }, 1305169245Sbz { "rthdr0", EXT_RTHDR0 }, 1306169245Sbz { "rthdr2", EXT_RTHDR2 }, 1307145246Sbrooks { NULL, 0 } 1308145246Sbrooks}; 1309145246Sbrooks 1310145246Sbrooks/* fills command for the extension header filtering */ 1311145246Sbrooksint 1312145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1313145246Sbrooks{ 1314145246Sbrooks int tok; 1315145246Sbrooks char *s = av; 1316145246Sbrooks 1317145246Sbrooks cmd->arg1 = 0; 1318145246Sbrooks 1319145246Sbrooks while(s) { 1320145246Sbrooks av = strsep( &s, ",") ; 1321145246Sbrooks tok = match_token(ext6hdrcodes, av); 1322145246Sbrooks switch (tok) { 1323145246Sbrooks case EXT_FRAGMENT: 1324145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1325145246Sbrooks break; 1326145246Sbrooks 1327145246Sbrooks case EXT_HOPOPTS: 1328145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1329145246Sbrooks break; 1330145246Sbrooks 1331145246Sbrooks case EXT_ROUTING: 1332145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1333145246Sbrooks break; 1334145246Sbrooks 1335149020Sbz case EXT_DSTOPTS: 1336149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1337149020Sbz break; 1338149020Sbz 1339145246Sbrooks case EXT_AH: 1340145246Sbrooks cmd->arg1 |= EXT_AH; 1341145246Sbrooks break; 1342145246Sbrooks 1343145246Sbrooks case EXT_ESP: 1344145246Sbrooks cmd->arg1 |= EXT_ESP; 1345145246Sbrooks break; 1346145246Sbrooks 1347169245Sbz case EXT_RTHDR0: 1348169245Sbz cmd->arg1 |= EXT_RTHDR0; 1349169245Sbz break; 1350169245Sbz 1351169245Sbz case EXT_RTHDR2: 1352169245Sbz cmd->arg1 |= EXT_RTHDR2; 1353169245Sbz break; 1354169245Sbz 1355145246Sbrooks default: 1356145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1357145246Sbrooks break; 1358145246Sbrooks } 1359145246Sbrooks } 1360145246Sbrooks if (cmd->arg1 == 0 ) 1361145246Sbrooks return 0; 1362145246Sbrooks cmd->opcode = O_EXT_HDR; 1363145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1364145246Sbrooks return 1; 1365145246Sbrooks} 1366145246Sbrooks 1367145246Sbrooksvoid 1368145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1369145246Sbrooks{ 1370145246Sbrooks char sep = ' '; 1371145246Sbrooks 1372145246Sbrooks printf(" extension header:"); 1373145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1374145246Sbrooks printf("%cfragmentation", sep); 1375145246Sbrooks sep = ','; 1376145246Sbrooks } 1377145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1378145246Sbrooks printf("%chop options", sep); 1379145246Sbrooks sep = ','; 1380145246Sbrooks } 1381145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1382145246Sbrooks printf("%crouting options", sep); 1383145246Sbrooks sep = ','; 1384145246Sbrooks } 1385169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1386169245Sbz printf("%crthdr0", sep); 1387169245Sbz sep = ','; 1388169245Sbz } 1389169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1390169245Sbz printf("%crthdr2", sep); 1391169245Sbz sep = ','; 1392169245Sbz } 1393149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1394149020Sbz printf("%cdestination options", sep); 1395149020Sbz sep = ','; 1396149020Sbz } 1397145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1398145246Sbrooks printf("%cauthentication header", sep); 1399145246Sbrooks sep = ','; 1400145246Sbrooks } 1401145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1402145246Sbrooks printf("%cencapsulated security payload", sep); 1403145246Sbrooks } 1404145246Sbrooks} 1405145246Sbrooks 140698943Sluigi/* 140798943Sluigi * show_ipfw() prints the body of an ipfw rule. 140898943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 140998943Sluigi * a helper function to produce these entries if not provided explicitly. 1410102087Sluigi * The first argument is the list of fields we have, the second is 1411102087Sluigi * the list of fields we want to be printed. 1412101978Sluigi * 1413102087Sluigi * Special cases if we have provided a MAC header: 1414102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1415102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1416102087Sluigi * 1417102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 141898943Sluigi */ 1419101978Sluigi#define HAVE_PROTO 0x0001 1420101978Sluigi#define HAVE_SRCIP 0x0002 1421101978Sluigi#define HAVE_DSTIP 0x0004 1422169139Smaxim#define HAVE_PROTO4 0x0008 1423169139Smaxim#define HAVE_PROTO6 0x0010 1424102087Sluigi#define HAVE_OPTIONS 0x8000 142598943Sluigi 1426101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 142798943Sluigistatic void 1428102087Sluigishow_prerequisites(int *flags, int want, int cmd) 142998943Sluigi{ 1430123495Sluigi if (comment_only) 1431123495Sluigi return; 1432102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1433102087Sluigi *flags |= HAVE_OPTIONS; 1434102087Sluigi 1435102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1436102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1437146894Smlaier if ( (*flags & HAVE_PROTO4)) 1438146894Smlaier printf(" ip4"); 1439146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1440146894Smlaier printf(" ip6"); 1441146894Smlaier else 1442146894Smlaier printf(" ip"); 1443146894Smlaier 1444102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1445102087Sluigi printf(" from any"); 1446102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1447102087Sluigi printf(" to any"); 1448102087Sluigi } 144998943Sluigi *flags |= want; 145098943Sluigi} 145198943Sluigi 145298943Sluigistatic void 1453112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 145498943Sluigi{ 1455107291Skeramida static int twidth = 0; 145698943Sluigi int l; 1457158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1458117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 145998943Sluigi int proto = 0; /* default */ 146098943Sluigi int flags = 0; /* prerequisites */ 146198943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1462136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 146398943Sluigi int or_block = 0; /* we are in an or block */ 1464117328Sluigi uint32_t set_disable; 146598943Sluigi 1466115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1467101628Sluigi 1468101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1469101628Sluigi if (!show_sets) 1470101628Sluigi return; 1471101628Sluigi else 1472101628Sluigi printf("# DISABLED "); 1473101628Sluigi } 147498943Sluigi printf("%05u ", rule->rulenum); 147598943Sluigi 1476117469Sluigi if (pcwidth>0 || bcwidth>0) 1477115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1478115793Sticso bcwidth, align_uint64(&rule->bcnt)); 147998943Sluigi 1480117472Sluigi if (do_time == 2) 1481117472Sluigi printf("%10u ", rule->timestamp); 1482117472Sluigi else if (do_time == 1) { 1483107291Skeramida char timestr[30]; 1484107291Skeramida time_t t = (time_t)0; 1485107291Skeramida 1486107291Skeramida if (twidth == 0) { 1487107291Skeramida strcpy(timestr, ctime(&t)); 1488107291Skeramida *strchr(timestr, '\n') = '\0'; 1489107291Skeramida twidth = strlen(timestr); 1490107291Skeramida } 149198943Sluigi if (rule->timestamp) { 1492107291Skeramida t = _long_to_time(rule->timestamp); 149398943Sluigi 149498943Sluigi strcpy(timestr, ctime(&t)); 149598943Sluigi *strchr(timestr, '\n') = '\0'; 149698943Sluigi printf("%s ", timestr); 149798943Sluigi } else { 1498107291Skeramida printf("%*s", twidth, " "); 149998943Sluigi } 150098943Sluigi } 150198943Sluigi 1502101628Sluigi if (show_sets) 1503101628Sluigi printf("set %d ", rule->set); 1504101628Sluigi 150598943Sluigi /* 1506107289Sluigi * print the optional "match probability" 1507107289Sluigi */ 1508107289Sluigi if (rule->cmd_len > 0) { 1509107289Sluigi cmd = rule->cmd ; 1510107289Sluigi if (cmd->opcode == O_PROB) { 1511107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1512107289Sluigi double d = 1.0 * p->d[0]; 1513107289Sluigi 1514107289Sluigi d = (d / 0x7fffffff); 1515107289Sluigi printf("prob %f ", d); 1516107289Sluigi } 1517107289Sluigi } 1518107289Sluigi 1519107289Sluigi /* 152098943Sluigi * first print actions 152198943Sluigi */ 152298943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 152398943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 152498943Sluigi switch(cmd->opcode) { 152598943Sluigi case O_CHECK_STATE: 152698943Sluigi printf("check-state"); 1527102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 152898943Sluigi break; 152998943Sluigi 153098943Sluigi case O_ACCEPT: 153198943Sluigi printf("allow"); 153298943Sluigi break; 153398943Sluigi 153498943Sluigi case O_COUNT: 153598943Sluigi printf("count"); 153698943Sluigi break; 153798943Sluigi 153898943Sluigi case O_DENY: 153998943Sluigi printf("deny"); 154098943Sluigi break; 154198943Sluigi 154299475Sluigi case O_REJECT: 154399475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 154499475Sluigi printf("reset"); 154599475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 154699475Sluigi printf("reject"); 154799475Sluigi else 154899475Sluigi print_reject_code(cmd->arg1); 154999475Sluigi break; 155099475Sluigi 1551149020Sbz case O_UNREACH6: 1552149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1553149020Sbz printf("reset6"); 1554149020Sbz else 1555149020Sbz print_unreach6_code(cmd->arg1); 1556149020Sbz break; 1557149020Sbz 1558159636Soleg case O_SKIPTO: 1559159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 156098943Sluigi break; 156198943Sluigi 156298943Sluigi case O_PIPE: 1563159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1564159636Soleg break; 1565159636Soleg 156698943Sluigi case O_QUEUE: 1567159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1568159636Soleg break; 1569159636Soleg 157098943Sluigi case O_DIVERT: 1571159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1572159636Soleg break; 1573159636Soleg 157498943Sluigi case O_TEE: 1575159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1576159636Soleg break; 1577159636Soleg 1578141351Sglebius case O_NETGRAPH: 1579159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1580159636Soleg break; 1581159636Soleg 1582141351Sglebius case O_NGTEE: 1583159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1584159636Soleg break; 1585141351Sglebius 158698943Sluigi case O_FORWARD_IP: 158798943Sluigi { 158898943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 158998943Sluigi 1590161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1591161424Sjulian printf("fwd tablearg"); 1592161424Sjulian } else { 1593161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1594161424Sjulian } 159598943Sluigi if (s->sa.sin_port) 1596103241Sluigi printf(",%d", s->sa.sin_port); 159798943Sluigi } 159898943Sluigi break; 159998943Sluigi 160098943Sluigi case O_LOG: /* O_LOG is printed last */ 160198943Sluigi logptr = (ipfw_insn_log *)cmd; 160298943Sluigi break; 160398943Sluigi 1604136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1605136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1606136071Sgreen break; 1607136071Sgreen 1608158879Soleg case O_TAG: 1609158879Soleg tagptr = cmd; 1610158879Soleg break; 1611158879Soleg 1612165648Spiso case O_NAT: 1613165648Spiso printf("nat %u", cmd->arg1); 1614165648Spiso break; 1615165648Spiso 161698943Sluigi default: 1617136071Sgreen printf("** unrecognized action %d len %d ", 161898943Sluigi cmd->opcode, cmd->len); 161998943Sluigi } 162098943Sluigi } 162198943Sluigi if (logptr) { 162298943Sluigi if (logptr->max_log > 0) 162399909Sluigi printf(" log logamount %d", logptr->max_log); 162498943Sluigi else 162599909Sluigi printf(" log"); 162698943Sluigi } 1627136071Sgreen if (altqptr) { 1628136071Sgreen const char *qname; 1629102087Sluigi 1630136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1631136071Sgreen if (qname == NULL) 1632136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1633136071Sgreen else 1634136071Sgreen printf(" altq %s", qname); 1635136071Sgreen } 1636158879Soleg if (tagptr) { 1637158879Soleg if (tagptr->len & F_NOT) 1638159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1639158879Soleg else 1640159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1641158879Soleg } 1642136071Sgreen 164398943Sluigi /* 1644102087Sluigi * then print the body. 164598943Sluigi */ 1646146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1647146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1648146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1649146894Smlaier continue; 1650146894Smlaier if (cmd->opcode == O_IP4) { 1651146894Smlaier flags |= HAVE_PROTO4; 1652146894Smlaier break; 1653146894Smlaier } else if (cmd->opcode == O_IP6) { 1654146894Smlaier flags |= HAVE_PROTO6; 1655146894Smlaier break; 1656146894Smlaier } 1657146894Smlaier } 1658102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1659146894Smlaier if (!do_compact) { 1660146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1661146894Smlaier printf(" from any to any"); 1662146894Smlaier } 1663102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1664102087Sluigi } 1665102087Sluigi 1666123495Sluigi if (comment_only) 1667123495Sluigi comment = "..."; 1668123495Sluigi 166998943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 167098943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 167199475Sluigi /* useful alias */ 167299475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 167398943Sluigi 1674123495Sluigi if (comment_only) { 1675123495Sluigi if (cmd->opcode != O_NOP) 1676123495Sluigi continue; 1677123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1678123495Sluigi return; 1679123495Sluigi } 1680123495Sluigi 1681102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1682102087Sluigi 168398943Sluigi switch(cmd->opcode) { 1684117577Sluigi case O_PROB: 1685107289Sluigi break; /* done already */ 1686107289Sluigi 168798943Sluigi case O_PROBE_STATE: 168898943Sluigi break; /* no need to print anything here */ 168998943Sluigi 169098943Sluigi case O_IP_SRC: 1691130281Sru case O_IP_SRC_LOOKUP: 169298943Sluigi case O_IP_SRC_MASK: 169398943Sluigi case O_IP_SRC_ME: 169498943Sluigi case O_IP_SRC_SET: 1695102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 169698943Sluigi if (!(flags & HAVE_SRCIP)) 169798943Sluigi printf(" from"); 169898943Sluigi if ((cmd->len & F_OR) && !or_block) 169998943Sluigi printf(" {"); 1700102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1701102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 170298943Sluigi flags |= HAVE_SRCIP; 170398943Sluigi break; 170498943Sluigi 170598943Sluigi case O_IP_DST: 1706130281Sru case O_IP_DST_LOOKUP: 170798943Sluigi case O_IP_DST_MASK: 170898943Sluigi case O_IP_DST_ME: 170998943Sluigi case O_IP_DST_SET: 1710102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 171198943Sluigi if (!(flags & HAVE_DSTIP)) 171298943Sluigi printf(" to"); 171398943Sluigi if ((cmd->len & F_OR) && !or_block) 171498943Sluigi printf(" {"); 1715102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1716102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 171798943Sluigi flags |= HAVE_DSTIP; 171898943Sluigi break; 171998943Sluigi 1720145246Sbrooks case O_IP6_SRC: 1721145246Sbrooks case O_IP6_SRC_MASK: 1722145246Sbrooks case O_IP6_SRC_ME: 1723147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1724145246Sbrooks if (!(flags & HAVE_SRCIP)) 1725145246Sbrooks printf(" from"); 1726145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1727145246Sbrooks printf(" {"); 1728145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1729145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1730145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1731145246Sbrooks break; 1732145246Sbrooks 1733145246Sbrooks case O_IP6_DST: 1734145246Sbrooks case O_IP6_DST_MASK: 1735145246Sbrooks case O_IP6_DST_ME: 1736145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1737145246Sbrooks if (!(flags & HAVE_DSTIP)) 1738145246Sbrooks printf(" to"); 1739145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1740145246Sbrooks printf(" {"); 1741145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1742145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1743145246Sbrooks flags |= HAVE_DSTIP; 1744145246Sbrooks break; 1745145246Sbrooks 1746145246Sbrooks case O_FLOW6ID: 1747145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1748145246Sbrooks flags |= HAVE_OPTIONS; 1749145246Sbrooks break; 1750145246Sbrooks 175198943Sluigi case O_IP_DSTPORT: 1752102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 175398943Sluigi case O_IP_SRCPORT: 1754102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1755101641Sluigi if ((cmd->len & F_OR) && !or_block) 1756101641Sluigi printf(" {"); 1757102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1758102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 175998943Sluigi break; 176098943Sluigi 176198943Sluigi case O_PROTO: { 1762145246Sbrooks struct protoent *pe = NULL; 176398943Sluigi 176498943Sluigi if ((cmd->len & F_OR) && !or_block) 176598943Sluigi printf(" {"); 176698943Sluigi if (cmd->len & F_NOT) 176798943Sluigi printf(" not"); 176898943Sluigi proto = cmd->arg1; 1769145567Sbrooks pe = getprotobynumber(cmd->arg1); 1770146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1771146894Smlaier !(flags & HAVE_PROTO)) 1772146894Smlaier show_prerequisites(&flags, 1773146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1774102087Sluigi if (flags & HAVE_OPTIONS) 1775102087Sluigi printf(" proto"); 177698943Sluigi if (pe) 177798943Sluigi printf(" %s", pe->p_name); 177898943Sluigi else 177998943Sluigi printf(" %u", cmd->arg1); 178098943Sluigi } 178198943Sluigi flags |= HAVE_PROTO; 178298943Sluigi break; 1783106505Smaxim 178498943Sluigi default: /*options ... */ 1785146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1786146894Smlaier if (((cmd->opcode == O_IP6) && 1787146894Smlaier (flags & HAVE_PROTO6)) || 1788146894Smlaier ((cmd->opcode == O_IP4) && 1789146894Smlaier (flags & HAVE_PROTO4))) 1790146894Smlaier break; 1791102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 179298943Sluigi if ((cmd->len & F_OR) && !or_block) 179398943Sluigi printf(" {"); 179498943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 179598943Sluigi printf(" not"); 179698943Sluigi switch(cmd->opcode) { 1797169139Smaxim case O_MACADDR2: { 1798169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1799169139Smaxim 1800169139Smaxim printf(" MAC"); 1801169139Smaxim print_mac(m->addr, m->mask); 1802169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1803169139Smaxim } 1804169139Smaxim break; 1805169139Smaxim 1806169139Smaxim case O_MAC_TYPE: 1807169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1808169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1809169139Smaxim break; 1810169139Smaxim 1811169139Smaxim 181298943Sluigi case O_FRAG: 181398943Sluigi printf(" frag"); 181498943Sluigi break; 181598943Sluigi 181698943Sluigi case O_IN: 181798943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 181898943Sluigi break; 181998943Sluigi 1820136073Sgreen case O_DIVERTED: 1821136073Sgreen switch (cmd->arg1) { 1822136073Sgreen case 3: 1823136073Sgreen printf(" diverted"); 1824136073Sgreen break; 1825136073Sgreen case 1: 1826136073Sgreen printf(" diverted-loopback"); 1827136073Sgreen break; 1828136073Sgreen case 2: 1829136073Sgreen printf(" diverted-output"); 1830136073Sgreen break; 1831136073Sgreen default: 1832136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1833136073Sgreen break; 1834136073Sgreen } 1835136073Sgreen break; 1836136073Sgreen 183798943Sluigi case O_LAYER2: 183898943Sluigi printf(" layer2"); 183998943Sluigi break; 184098943Sluigi case O_XMIT: 184198943Sluigi case O_RECV: 1842140423Sglebius case O_VIA: 1843140423Sglebius { 1844117469Sluigi char const *s; 184598943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 184698943Sluigi 184798943Sluigi if (cmd->opcode == O_XMIT) 184898943Sluigi s = "xmit"; 184998943Sluigi else if (cmd->opcode == O_RECV) 185098943Sluigi s = "recv"; 1851117469Sluigi else /* if (cmd->opcode == O_VIA) */ 185298943Sluigi s = "via"; 185398943Sluigi if (cmdif->name[0] == '\0') 185499475Sluigi printf(" %s %s", s, 185599475Sluigi inet_ntoa(cmdif->p.ip)); 1856140423Sglebius else 1857140423Sglebius printf(" %s %s", s, cmdif->name); 1858140423Sglebius 185998943Sluigi break; 1860140423Sglebius } 186198943Sluigi case O_IPID: 1862116690Sluigi if (F_LEN(cmd) == 1) 1863116690Sluigi printf(" ipid %u", cmd->arg1 ); 1864116690Sluigi else 1865116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1866116690Sluigi O_IPID); 186798943Sluigi break; 186898943Sluigi 186998943Sluigi case O_IPTTL: 1870116690Sluigi if (F_LEN(cmd) == 1) 1871116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1872116690Sluigi else 1873116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1874116690Sluigi O_IPTTL); 187598943Sluigi break; 187698943Sluigi 187798943Sluigi case O_IPVER: 187898943Sluigi printf(" ipver %u", cmd->arg1 ); 187998943Sluigi break; 188098943Sluigi 188199475Sluigi case O_IPPRECEDENCE: 188299475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 188399475Sluigi break; 188499475Sluigi 188598943Sluigi case O_IPLEN: 1886116690Sluigi if (F_LEN(cmd) == 1) 1887116690Sluigi printf(" iplen %u", cmd->arg1 ); 1888116690Sluigi else 1889116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1890116690Sluigi O_IPLEN); 189198943Sluigi break; 189298943Sluigi 1893101116Sluigi case O_IPOPT: 189498943Sluigi print_flags("ipoptions", cmd, f_ipopts); 189598943Sluigi break; 189698943Sluigi 189799475Sluigi case O_IPTOS: 189899475Sluigi print_flags("iptos", cmd, f_iptos); 189999475Sluigi break; 190099475Sluigi 190199475Sluigi case O_ICMPTYPE: 190299475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 190399475Sluigi break; 190499475Sluigi 190598943Sluigi case O_ESTAB: 190698943Sluigi printf(" established"); 190798943Sluigi break; 190898943Sluigi 1909136075Sgreen case O_TCPDATALEN: 1910136075Sgreen if (F_LEN(cmd) == 1) 1911136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1912136075Sgreen else 1913136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1914136075Sgreen O_TCPDATALEN); 1915136075Sgreen break; 1916136075Sgreen 191798943Sluigi case O_TCPFLAGS: 191898943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 191998943Sluigi break; 192098943Sluigi 192198943Sluigi case O_TCPOPTS: 192298943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 192398943Sluigi break; 192498943Sluigi 192598943Sluigi case O_TCPWIN: 192698943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 192798943Sluigi break; 192898943Sluigi 192998943Sluigi case O_TCPACK: 193098943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 193198943Sluigi break; 193298943Sluigi 193398943Sluigi case O_TCPSEQ: 193498943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 193598943Sluigi break; 193698943Sluigi 193798943Sluigi case O_UID: 193898943Sluigi { 193998943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 194098943Sluigi 194198943Sluigi if (pwd) 194298943Sluigi printf(" uid %s", pwd->pw_name); 194398943Sluigi else 194498943Sluigi printf(" uid %u", cmd32->d[0]); 194598943Sluigi } 194698943Sluigi break; 194798943Sluigi 194898943Sluigi case O_GID: 194998943Sluigi { 195098943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 195198943Sluigi 195298943Sluigi if (grp) 195398943Sluigi printf(" gid %s", grp->gr_name); 195498943Sluigi else 195598943Sluigi printf(" gid %u", cmd32->d[0]); 195698943Sluigi } 195798943Sluigi break; 195898943Sluigi 1959133600Scsjp case O_JAIL: 1960133600Scsjp printf(" jail %d", cmd32->d[0]); 1961133600Scsjp break; 1962133600Scsjp 1963112250Scjc case O_VERREVPATH: 1964112250Scjc printf(" verrevpath"); 1965112250Scjc break; 1966116919Sluigi 1967128575Sandre case O_VERSRCREACH: 1968128575Sandre printf(" versrcreach"); 1969128575Sandre break; 1970128575Sandre 1971133387Sandre case O_ANTISPOOF: 1972133387Sandre printf(" antispoof"); 1973133387Sandre break; 1974133387Sandre 1975117241Sluigi case O_IPSEC: 1976117241Sluigi printf(" ipsec"); 1977117241Sluigi break; 1978117241Sluigi 1979117469Sluigi case O_NOP: 1980117626Sluigi comment = (char *)(cmd + 1); 1981117469Sluigi break; 1982117469Sluigi 198398943Sluigi case O_KEEP_STATE: 198498943Sluigi printf(" keep-state"); 198598943Sluigi break; 198698943Sluigi 1987159636Soleg case O_LIMIT: { 198898943Sluigi struct _s_x *p = limit_masks; 198998943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1990117328Sluigi uint8_t x = c->limit_mask; 1991117469Sluigi char const *comma = " "; 199298943Sluigi 199398943Sluigi printf(" limit"); 1994117577Sluigi for (; p->x != 0 ; p++) 199599909Sluigi if ((x & p->x) == p->x) { 199698943Sluigi x &= ~p->x; 199798943Sluigi printf("%s%s", comma, p->s); 199898943Sluigi comma = ","; 199998943Sluigi } 2000159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 200198943Sluigi break; 2002159636Soleg } 200398943Sluigi 2004146894Smlaier case O_IP6: 2005152923Sume printf(" ip6"); 2006145246Sbrooks break; 2007145246Sbrooks 2008146894Smlaier case O_IP4: 2009152923Sume printf(" ip4"); 2010146894Smlaier break; 2011146894Smlaier 2012145246Sbrooks case O_ICMP6TYPE: 2013145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2014145246Sbrooks break; 2015145246Sbrooks 2016145246Sbrooks case O_EXT_HDR: 2017145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2018145246Sbrooks break; 2019145246Sbrooks 2020158879Soleg case O_TAGGED: 2021158879Soleg if (F_LEN(cmd) == 1) 2022159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2023158879Soleg else 2024159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2025159636Soleg O_TAGGED); 2026158879Soleg break; 2027158879Soleg 202898943Sluigi default: 202998943Sluigi printf(" [opcode %d len %d]", 203098943Sluigi cmd->opcode, cmd->len); 203198943Sluigi } 203298943Sluigi } 203398943Sluigi if (cmd->len & F_OR) { 203498943Sluigi printf(" or"); 203598943Sluigi or_block = 1; 203698943Sluigi } else if (or_block) { 203798943Sluigi printf(" }"); 203898943Sluigi or_block = 0; 203998943Sluigi } 204098943Sluigi } 2041102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2042117626Sluigi if (comment) 2043117626Sluigi printf(" // %s", comment); 204498943Sluigi printf("\n"); 204598943Sluigi} 204698943Sluigi 204798943Sluigistatic void 2048112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 204998943Sluigi{ 205098943Sluigi struct protoent *pe; 205198943Sluigi struct in_addr a; 2052115793Sticso uint16_t rulenum; 2053159160Smlaier char buf[INET6_ADDRSTRLEN]; 205498943Sluigi 205598943Sluigi if (!do_expired) { 205698943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 205798943Sluigi return; 205898943Sluigi } 2059115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2060117328Sluigi printf("%05d", rulenum); 2061117469Sluigi if (pcwidth>0 || bcwidth>0) 2062117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2063117328Sluigi align_uint64(&d->pcnt), bcwidth, 2064117328Sluigi align_uint64(&d->bcnt), d->expire); 206598943Sluigi switch (d->dyn_type) { 206698943Sluigi case O_LIMIT_PARENT: 206798943Sluigi printf(" PARENT %d", d->count); 206898943Sluigi break; 206998943Sluigi case O_LIMIT: 207098943Sluigi printf(" LIMIT"); 207198943Sluigi break; 207298943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2073106505Smaxim printf(" STATE"); 207498943Sluigi break; 207598943Sluigi } 207698943Sluigi 207798943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 207898943Sluigi printf(" %s", pe->p_name); 207998943Sluigi else 208098943Sluigi printf(" proto %u", d->id.proto); 208198943Sluigi 2082159160Smlaier if (d->id.addr_type == 4) { 2083159160Smlaier a.s_addr = htonl(d->id.src_ip); 2084159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 208598943Sluigi 2086159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2087159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2088159160Smlaier } else if (d->id.addr_type == 6) { 2089159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2090159160Smlaier sizeof(buf)), d->id.src_port); 2091159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2092159160Smlaier sizeof(buf)), d->id.dst_port); 2093159160Smlaier } else 2094159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2095159160Smlaier 209698943Sluigi printf("\n"); 209798943Sluigi} 209898943Sluigi 2099117469Sluigistatic int 210098943Sluigisort_q(const void *pa, const void *pb) 210198943Sluigi{ 210298943Sluigi int rev = (do_sort < 0); 210398943Sluigi int field = rev ? -do_sort : do_sort; 210498943Sluigi long long res = 0; 210598943Sluigi const struct dn_flow_queue *a = pa; 210698943Sluigi const struct dn_flow_queue *b = pb; 210798943Sluigi 210898943Sluigi switch (field) { 210998943Sluigi case 1: /* pkts */ 211098943Sluigi res = a->len - b->len; 211198943Sluigi break; 211298943Sluigi case 2: /* bytes */ 211398943Sluigi res = a->len_bytes - b->len_bytes; 211498943Sluigi break; 211598943Sluigi 211698943Sluigi case 3: /* tot pkts */ 211798943Sluigi res = a->tot_pkts - b->tot_pkts; 211898943Sluigi break; 211998943Sluigi 212098943Sluigi case 4: /* tot bytes */ 212198943Sluigi res = a->tot_bytes - b->tot_bytes; 212298943Sluigi break; 212398943Sluigi } 212498943Sluigi if (res < 0) 212598943Sluigi res = -1; 212698943Sluigi if (res > 0) 212798943Sluigi res = 1; 212898943Sluigi return (int)(rev ? res : -res); 212998943Sluigi} 213098943Sluigi 213198943Sluigistatic void 213298943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 213398943Sluigi{ 213498943Sluigi int l; 2135145246Sbrooks int index_printed, indexes = 0; 2136145246Sbrooks char buff[255]; 2137145246Sbrooks struct protoent *pe; 213898943Sluigi 213998943Sluigi if (fs->rq_elements == 0) 214098943Sluigi return; 214198943Sluigi 214298943Sluigi if (do_sort != 0) 214398943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2144145246Sbrooks 2145145246Sbrooks /* Print IPv4 flows */ 2146145246Sbrooks index_printed = 0; 214798943Sluigi for (l = 0; l < fs->rq_elements; l++) { 214898943Sluigi struct in_addr ina; 214998943Sluigi 2150145246Sbrooks /* XXX: Should check for IPv4 flows */ 2151145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2152145246Sbrooks continue; 2153145246Sbrooks 2154145246Sbrooks if (!index_printed) { 2155145246Sbrooks index_printed = 1; 2156145246Sbrooks if (indexes > 0) /* currently a no-op */ 2157145246Sbrooks printf("\n"); 2158145246Sbrooks indexes++; 2159145246Sbrooks printf(" " 2160145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2161145246Sbrooks fs->flow_mask.proto, 2162145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2163145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2164145246Sbrooks 2165145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2166145246Sbrooks "____Dest. IP/port____ " 2167145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2168145246Sbrooks } 2169145246Sbrooks 217098943Sluigi printf("%3d ", q[l].hash_slot); 217198943Sluigi pe = getprotobynumber(q[l].id.proto); 217298943Sluigi if (pe) 217398943Sluigi printf("%-4s ", pe->p_name); 217498943Sluigi else 217598943Sluigi printf("%4u ", q[l].id.proto); 2176145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 217798943Sluigi printf("%15s/%-5d ", 217898943Sluigi inet_ntoa(ina), q[l].id.src_port); 217998943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 218098943Sluigi printf("%15s/%-5d ", 218198943Sluigi inet_ntoa(ina), q[l].id.dst_port); 218298943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 218398943Sluigi q[l].tot_pkts, q[l].tot_bytes, 218498943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 218598943Sluigi if (verbose) 218698943Sluigi printf(" S %20qd F %20qd\n", 218798943Sluigi q[l].S, q[l].F); 218898943Sluigi } 2189145246Sbrooks 2190145246Sbrooks /* Print IPv6 flows */ 2191145246Sbrooks index_printed = 0; 2192145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2193145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2194145246Sbrooks continue; 2195145246Sbrooks 2196145246Sbrooks if (!index_printed) { 2197145246Sbrooks index_printed = 1; 2198145246Sbrooks if (indexes > 0) 2199145246Sbrooks printf("\n"); 2200145246Sbrooks indexes++; 2201145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2202145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2203145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2204145246Sbrooks buff, sizeof(buff)); 2205145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2206145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2207145246Sbrooks buff, sizeof(buff) ); 2208145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2209145246Sbrooks 2210145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2211145246Sbrooks "______________Source IPv6/port_______________ " 2212145246Sbrooks "_______________Dest. IPv6/port_______________ " 2213145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2214145246Sbrooks } 2215145246Sbrooks printf("%3d ", q[l].hash_slot); 2216145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2217145246Sbrooks if (pe != NULL) 2218145246Sbrooks printf("%9s ", pe->p_name); 2219145246Sbrooks else 2220145246Sbrooks printf("%9u ", q[l].id.proto); 2221145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2222145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2223145246Sbrooks q[l].id.src_port); 2224145246Sbrooks printf(" %39s/%-5d ", 2225145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2226145246Sbrooks q[l].id.dst_port); 2227145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2228145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2229145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2230145246Sbrooks if (verbose) 2231145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2232145246Sbrooks } 223398943Sluigi} 223498943Sluigi 223598943Sluigistatic void 223698943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 223798943Sluigi{ 223898943Sluigi int l; 223998943Sluigi char qs[30]; 224098943Sluigi char plr[30]; 224198943Sluigi char red[90]; /* Display RED parameters */ 224298943Sluigi 224398943Sluigi l = fs->qsize; 224498943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 224598943Sluigi if (l >= 8192) 224698943Sluigi sprintf(qs, "%d KB", l / 1024); 224798943Sluigi else 224898943Sluigi sprintf(qs, "%d B", l); 224998943Sluigi } else 225098943Sluigi sprintf(qs, "%3d sl.", l); 225198943Sluigi if (fs->plr) 225298943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 225398943Sluigi else 225498943Sluigi plr[0] = '\0'; 225598943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 225698943Sluigi sprintf(red, 225798943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 225898943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 225998943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 226098943Sluigi SCALE_VAL(fs->min_th), 226198943Sluigi SCALE_VAL(fs->max_th), 226298943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 226398943Sluigi else 226498943Sluigi sprintf(red, "droptail"); 226598943Sluigi 226698943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 226798943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 226898943Sluigi} 226998943Sluigi 227098943Sluigistatic void 2271117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 227298943Sluigi{ 2273117469Sluigi int rulenum; 227498943Sluigi void *next = data; 227598943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 227698943Sluigi struct dn_flow_set *fs; 227798943Sluigi struct dn_flow_queue *q; 227898943Sluigi int l; 227998943Sluigi 228098943Sluigi if (ac > 0) 228198943Sluigi rulenum = strtoul(*av++, NULL, 10); 228298943Sluigi else 228398943Sluigi rulenum = 0; 228498943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 228598943Sluigi double b = p->bandwidth; 228698943Sluigi char buf[30]; 228798943Sluigi char prefix[80]; 228898943Sluigi 2289161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 229098943Sluigi break; /* done with pipes, now queues */ 229198943Sluigi 229298943Sluigi /* 229398943Sluigi * compute length, as pipe have variable size 229498943Sluigi */ 229598943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2296117469Sluigi next = (char *)p + l; 229798943Sluigi nbytes -= l; 229898943Sluigi 2299134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 230098943Sluigi continue; 230198943Sluigi 230298943Sluigi /* 230398943Sluigi * Print rate (or clocking interface) 230498943Sluigi */ 230598943Sluigi if (p->if_name[0] != '\0') 230698943Sluigi sprintf(buf, "%s", p->if_name); 230798943Sluigi else if (b == 0) 230898943Sluigi sprintf(buf, "unlimited"); 230998943Sluigi else if (b >= 1000000) 231098943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 231198943Sluigi else if (b >= 1000) 231298943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 231398943Sluigi else 231498943Sluigi sprintf(buf, "%7.3f bit/s ", b); 231598943Sluigi 231698943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 231798943Sluigi p->pipe_nr, buf, p->delay); 231898943Sluigi print_flowset_parms(&(p->fs), prefix); 231998943Sluigi if (verbose) 232098943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2321106505Smaxim 232298943Sluigi q = (struct dn_flow_queue *)(p+1); 232398943Sluigi list_queues(&(p->fs), q); 232498943Sluigi } 232598943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 232698943Sluigi char prefix[80]; 232798943Sluigi 2328161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 232998943Sluigi break; 233098943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2331117469Sluigi next = (char *)fs + l; 233298943Sluigi nbytes -= l; 2333134225Spjd 2334134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2335134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2336134225Spjd continue; 2337134225Spjd } 2338134225Spjd 233998943Sluigi q = (struct dn_flow_queue *)(fs+1); 234098943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 234198943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 234298943Sluigi print_flowset_parms(fs, prefix); 234398943Sluigi list_queues(fs, q); 234498943Sluigi } 234598943Sluigi} 234698943Sluigi 2347101978Sluigi/* 2348101978Sluigi * This one handles all set-related commands 2349101978Sluigi * ipfw set { show | enable | disable } 2350101978Sluigi * ipfw set swap X Y 2351101978Sluigi * ipfw set move X to Y 2352101978Sluigi * ipfw set move rule X to Y 2353101978Sluigi */ 235498943Sluigistatic void 2355101978Sluigisets_handler(int ac, char *av[]) 2356101978Sluigi{ 2357117328Sluigi uint32_t set_disable, masks[2]; 2358101978Sluigi int i, nbytes; 2359117328Sluigi uint16_t rulenum; 2360117328Sluigi uint8_t cmd, new_set; 2361101978Sluigi 2362101978Sluigi ac--; 2363101978Sluigi av++; 2364101978Sluigi 2365101978Sluigi if (!ac) 2366101978Sluigi errx(EX_USAGE, "set needs command"); 2367140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2368101978Sluigi void *data; 2369117469Sluigi char const *msg; 2370101978Sluigi 2371101978Sluigi nbytes = sizeof(struct ip_fw); 2372117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2373117328Sluigi err(EX_OSERR, "calloc"); 2374119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2375101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2376115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2377115793Sticso &set_disable, sizeof(set_disable)); 2378101978Sluigi 2379117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2380117577Sluigi if ((set_disable & (1<<i))) { 2381101978Sluigi printf("%s %d", msg, i); 2382101978Sluigi msg = ""; 2383101978Sluigi } 2384101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2385117655Sluigi for (i = 0; i < RESVD_SET; i++) 2386117577Sluigi if (!(set_disable & (1<<i))) { 2387101978Sluigi printf("%s %d", msg, i); 2388101978Sluigi msg = ""; 2389101978Sluigi } 2390101978Sluigi printf("\n"); 2391140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2392101978Sluigi ac--; av++; 2393101978Sluigi if (ac != 2) 2394101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2395101978Sluigi rulenum = atoi(av[0]); 2396101978Sluigi new_set = atoi(av[1]); 2397117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2398101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2399117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2400101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2401101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2402117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2403140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2404101978Sluigi ac--; av++; 2405140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2406101978Sluigi cmd = 2; 2407101978Sluigi ac--; av++; 2408101978Sluigi } else 2409101978Sluigi cmd = 3; 2410140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2411101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2412101978Sluigi rulenum = atoi(av[0]); 2413101978Sluigi new_set = atoi(av[2]); 2414117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2415101978Sluigi (cmd == 2 && rulenum == 65535) ) 2416101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2417117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2418101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2419101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2420117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2421140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2422140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2423140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2424101978Sluigi 2425101978Sluigi ac--; av++; 2426101978Sluigi masks[0] = masks[1] = 0; 2427101978Sluigi 2428101978Sluigi while (ac) { 2429101978Sluigi if (isdigit(**av)) { 2430101978Sluigi i = atoi(*av); 2431117655Sluigi if (i < 0 || i > RESVD_SET) 2432101978Sluigi errx(EX_DATAERR, 2433101978Sluigi "invalid set number %d\n", i); 2434101978Sluigi masks[which] |= (1<<i); 2435140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2436101978Sluigi which = 0; 2437140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2438101978Sluigi which = 1; 2439101978Sluigi else 2440101978Sluigi errx(EX_DATAERR, 2441101978Sluigi "invalid set command %s\n", *av); 2442101978Sluigi av++; ac--; 2443101978Sluigi } 2444101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2445101978Sluigi errx(EX_DATAERR, 2446101978Sluigi "cannot enable and disable the same set\n"); 2447101978Sluigi 2448117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2449101978Sluigi if (i) 2450101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2451101978Sluigi } else 2452101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2453101978Sluigi} 2454101978Sluigi 2455101978Sluigistatic void 2456109126Sdillonsysctl_handler(int ac, char *av[], int which) 2457109126Sdillon{ 2458109126Sdillon ac--; 2459109126Sdillon av++; 2460109126Sdillon 2461119668Smaxim if (ac == 0) { 2462109126Sdillon warnx("missing keyword to enable/disable\n"); 2463140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2464116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2465116770Sluigi &which, sizeof(which)); 2466140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2467116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2468116770Sluigi &which, sizeof(which)); 2469140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2470116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2471116770Sluigi &which, sizeof(which)); 2472140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2473116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2474116770Sluigi &which, sizeof(which)); 2475140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2476116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2477116770Sluigi &which, sizeof(which)); 2478140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2479136071Sgreen altq_set_enabled(which); 2480109126Sdillon } else { 2481109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2482109126Sdillon } 2483109126Sdillon} 2484109126Sdillon 2485109126Sdillonstatic void 2486117469Sluigilist(int ac, char *av[], int show_counters) 248798943Sluigi{ 248898943Sluigi struct ip_fw *r; 248998943Sluigi ipfw_dyn_rule *dynrules, *d; 249098943Sluigi 2491117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2492117469Sluigi char *lim; 2493117469Sluigi void *data = NULL; 2494112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 249598943Sluigi int exitval = EX_OK; 249698943Sluigi int lac; 249798943Sluigi char **lav; 2498117469Sluigi u_long rnum, last; 249998943Sluigi char *endptr; 250098943Sluigi int seen = 0; 250198943Sluigi 250298943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 250398943Sluigi int nalloc = 1024; /* start somewhere... */ 250498943Sluigi 2505135036Smaxim last = 0; 2506135036Smaxim 2507117328Sluigi if (test_only) { 2508117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2509117328Sluigi return; 2510117328Sluigi } 2511117328Sluigi 251298943Sluigi ac--; 251398943Sluigi av++; 251498943Sluigi 251598943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 251698943Sluigi nbytes = nalloc; 251798943Sluigi 251898943Sluigi while (nbytes >= nalloc) { 251998943Sluigi nalloc = nalloc * 2 + 200; 252098943Sluigi nbytes = nalloc; 252198943Sluigi if ((data = realloc(data, nbytes)) == NULL) 252298943Sluigi err(EX_OSERR, "realloc"); 2523119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 252498943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 252598943Sluigi do_pipe ? "DUMMYNET" : "FW"); 252698943Sluigi } 252798943Sluigi 252898943Sluigi if (do_pipe) { 252998943Sluigi list_pipes(data, nbytes, ac, av); 253098943Sluigi goto done; 253198943Sluigi } 253298943Sluigi 253398943Sluigi /* 253498943Sluigi * Count static rules. They have variable size so we 253598943Sluigi * need to scan the list to count them. 253698943Sluigi */ 2537117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2538117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2539117469Sluigi ++nstat, r = NEXT(r) ) 254098943Sluigi ; /* nothing */ 254198943Sluigi 254298943Sluigi /* 254398943Sluigi * Count dynamic rules. This is easier as they have 254498943Sluigi * fixed size. 254598943Sluigi */ 2546117469Sluigi r = NEXT(r); 254798943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2548117469Sluigi n = (char *)r - (char *)data; 254998943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 255098943Sluigi 2551112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2552112189Smaxim bcwidth = pcwidth = 0; 2553117469Sluigi if (show_counters) { 2554117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2555112189Smaxim /* packet counter */ 2556115793Sticso width = snprintf(NULL, 0, "%llu", 2557115793Sticso align_uint64(&r->pcnt)); 2558112189Smaxim if (width > pcwidth) 2559112189Smaxim pcwidth = width; 2560112189Smaxim 2561112189Smaxim /* byte counter */ 2562115793Sticso width = snprintf(NULL, 0, "%llu", 2563115793Sticso align_uint64(&r->bcnt)); 2564112189Smaxim if (width > bcwidth) 2565112189Smaxim bcwidth = width; 2566112189Smaxim } 2567112189Smaxim } 2568112189Smaxim if (do_dynamic && ndyn) { 2569112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2570115793Sticso width = snprintf(NULL, 0, "%llu", 2571115793Sticso align_uint64(&d->pcnt)); 2572112189Smaxim if (width > pcwidth) 2573112189Smaxim pcwidth = width; 2574112189Smaxim 2575115793Sticso width = snprintf(NULL, 0, "%llu", 2576115793Sticso align_uint64(&d->bcnt)); 2577112189Smaxim if (width > bcwidth) 2578112189Smaxim bcwidth = width; 2579112189Smaxim } 2580112189Smaxim } 258198943Sluigi /* if no rule numbers were specified, list all rules */ 258298943Sluigi if (ac == 0) { 2583117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 2584112189Smaxim show_ipfw(r, pcwidth, bcwidth); 258598943Sluigi 258698943Sluigi if (do_dynamic && ndyn) { 258798943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 258898943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 2589112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 259098943Sluigi } 259198943Sluigi goto done; 259298943Sluigi } 259398943Sluigi 259498943Sluigi /* display specific rules requested on command line */ 259598943Sluigi 259698943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 259798943Sluigi /* convert command line rule # */ 2598117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2599117469Sluigi if (*endptr == '-') 2600117469Sluigi last = strtoul(endptr+1, &endptr, 10); 260198943Sluigi if (*endptr) { 260298943Sluigi exitval = EX_USAGE; 260398943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 260498943Sluigi continue; 260598943Sluigi } 2606117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2607117469Sluigi if (r->rulenum > last) 260898943Sluigi break; 2609117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2610112189Smaxim show_ipfw(r, pcwidth, bcwidth); 261198943Sluigi seen = 1; 261298943Sluigi } 261398943Sluigi } 261498943Sluigi if (!seen) { 261598943Sluigi /* give precedence to other error(s) */ 261698943Sluigi if (exitval == EX_OK) 261798943Sluigi exitval = EX_UNAVAILABLE; 261898943Sluigi warnx("rule %lu does not exist", rnum); 261998943Sluigi } 262098943Sluigi } 262198943Sluigi 262298943Sluigi if (do_dynamic && ndyn) { 262398943Sluigi printf("## Dynamic rules:\n"); 262498943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2625145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2626117469Sluigi if (*endptr == '-') 2627117469Sluigi last = strtoul(endptr+1, &endptr, 10); 262898943Sluigi if (*endptr) 262998943Sluigi /* already warned */ 263098943Sluigi continue; 263198943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2632115793Sticso uint16_t rulenum; 2633115793Sticso 2634115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2635115793Sticso if (rulenum > rnum) 263698943Sluigi break; 2637117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2638112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 263998943Sluigi } 264098943Sluigi } 264198943Sluigi } 264298943Sluigi 264398943Sluigi ac = 0; 264498943Sluigi 264598943Sluigidone: 264698943Sluigi free(data); 264798943Sluigi 264898943Sluigi if (exitval != EX_OK) 264998943Sluigi exit(exitval); 2650117469Sluigi#undef NEXT 265198943Sluigi} 265298943Sluigi 265398943Sluigistatic void 265498943Sluigishow_usage(void) 265598943Sluigi{ 265698943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 265798943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 265898943Sluigi); 265998943Sluigi exit(EX_USAGE); 266098943Sluigi} 266198943Sluigi 266298943Sluigistatic void 266398943Sluigihelp(void) 266498943Sluigi{ 2665117328Sluigi fprintf(stderr, 2666117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2667123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2668117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2669117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2670117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2671165648Spiso"nat N config {ip IPADDR|if IFNAME|log|deny_in|same_ports|unreg_only|reset|\n" 2672165648Spiso" reverse|proxy_only|redirect_addr linkspec|\n" 2673165648Spiso" redirect_port linkspec|redirect_proto linkspec}\n" 2674117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2675130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 267698943Sluigi"\n" 2677136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2678149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2679149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2680165648Spiso" pipe N | queue N | nat N\n" 2681136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 268298943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2683145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2684145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2685130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2686145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2687145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2688117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2689117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2690136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2691145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2692145246Sbrooks" {dst-port|src-port} LIST |\n" 2693117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2694117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2695117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2696145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2697117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2698117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2699136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 270098943Sluigi); 270198943Sluigiexit(0); 270298943Sluigi} 270398943Sluigi 270498943Sluigi 270598943Sluigistatic int 270698943Sluigilookup_host (char *host, struct in_addr *ipaddr) 270798943Sluigi{ 270898943Sluigi struct hostent *he; 270998943Sluigi 271098943Sluigi if (!inet_aton(host, ipaddr)) { 271198943Sluigi if ((he = gethostbyname(host)) == NULL) 271298943Sluigi return(-1); 271398943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 271498943Sluigi } 271598943Sluigi return(0); 271698943Sluigi} 271798943Sluigi 271898943Sluigi/* 271998943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 272098943Sluigi * Update length as appropriate. 272198943Sluigi * The following formats are allowed: 272298943Sluigi * me returns O_IP_*_ME 272398943Sluigi * 1.2.3.4 single IP address 272498943Sluigi * 1.2.3.4:5.6.7.8 address:mask 272598943Sluigi * 1.2.3.4/24 address/mask 272698943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2727117328Sluigi * We can have multiple comma-separated address/mask entries. 272898943Sluigi */ 272998943Sluigistatic void 273098943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 273198943Sluigi{ 2732117328Sluigi int len = 0; 2733117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 273498943Sluigi 273598943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 273698943Sluigi 2737140271Sbrooks if (_substrcmp(av, "any") == 0) 273898943Sluigi return; 273998943Sluigi 2740140271Sbrooks if (_substrcmp(av, "me") == 0) { 274198943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 274298943Sluigi return; 274398943Sluigi } 274498943Sluigi 2745140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2746130281Sru char *p = strchr(av + 6, ','); 2747130281Sru 2748130281Sru if (p) 2749130281Sru *p++ = '\0'; 2750130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2751130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2752130281Sru if (p) { 2753130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2754130281Sru d[0] = strtoul(p, NULL, 0); 2755130281Sru } else 2756130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2757130281Sru return; 2758130281Sru } 2759130281Sru 2760117328Sluigi while (av) { 2761117328Sluigi /* 2762117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2763117328Sluigi * ',' indicating another address follows, '{' indicating a 2764117328Sluigi * set of addresses of unspecified size. 2765117328Sluigi */ 2766165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2767117328Sluigi int masklen; 2768165851Smlaier char md, nd; 2769117328Sluigi 277098943Sluigi if (p) { 277198943Sluigi md = *p; 277298943Sluigi *p++ = '\0'; 2773165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2774165851Smlaier nd = *t; 2775165851Smlaier *t = '\0'; 2776165851Smlaier } 2777117328Sluigi } else 2778117328Sluigi md = '\0'; 277998943Sluigi 2780117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 278198943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 278298943Sluigi switch (md) { 278398943Sluigi case ':': 2784117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 278598943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 278698943Sluigi break; 278798943Sluigi case '/': 2788117328Sluigi masklen = atoi(p); 2789117328Sluigi if (masklen == 0) 2790117328Sluigi d[1] = htonl(0); /* mask */ 2791117328Sluigi else if (masklen > 32) 279298943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 279398943Sluigi else 2794117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 279598943Sluigi break; 2796117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2797117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2798117328Sluigi *(--p) = md; 2799117328Sluigi break; 2800117328Sluigi 2801117328Sluigi case ',': /* single address plus continuation */ 2802117328Sluigi *(--p) = md; 2803117328Sluigi /* FALLTHROUGH */ 2804117328Sluigi case 0: /* initialization value */ 280598943Sluigi default: 2806117328Sluigi d[1] = htonl(~0); /* force /32 */ 280798943Sluigi break; 280898943Sluigi } 2809117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2810165851Smlaier if (t) 2811165851Smlaier *t = nd; 2812117328Sluigi /* find next separator */ 281398943Sluigi if (p) 2814117328Sluigi p = strpbrk(p, ",{"); 2815117328Sluigi if (p && *p == '{') { 2816117328Sluigi /* 2817117328Sluigi * We have a set of addresses. They are stored as follows: 2818117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2819117328Sluigi * addr is the base address IN HOST FORMAT 2820117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2821117328Sluigi * the next multiple of 32) with bits set 2822117328Sluigi * for each host in the map. 2823117328Sluigi */ 2824117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 282598943Sluigi int low, high; 2826117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 282798943Sluigi 2828117328Sluigi if (len > 0) 2829117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2830117328Sluigi if (i < 24 || i > 31) 2831117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2832117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2833117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 283498943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 283598943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2836101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2837117328Sluigi map[i] = 0; /* clear map */ 283898943Sluigi 2839117328Sluigi av = p + 1; 2840117328Sluigi low = d[0] & 0xff; 284198943Sluigi high = low + cmd->o.arg1 - 1; 2842117328Sluigi /* 2843117328Sluigi * Here, i stores the previous value when we specify a range 2844117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2845117328Sluigi * have no previous value. 2846117328Sluigi */ 2847116716Sluigi i = -1; /* previous value in a range */ 284898943Sluigi while (isdigit(*av)) { 284998943Sluigi char *s; 2850117328Sluigi int a = strtol(av, &s, 0); 285198943Sluigi 2852117328Sluigi if (s == av) { /* no parameter */ 2853117328Sluigi if (*av != '}') 2854117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2855117328Sluigi if (i != -1) 2856117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2857117328Sluigi break; 2858117328Sluigi } 2859117328Sluigi if (a < low || a > high) 2860117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 286198943Sluigi a, low, high); 286298943Sluigi a -= low; 2863116716Sluigi if (i == -1) /* no previous in range */ 2864116716Sluigi i = a; 2865116716Sluigi else { /* check that range is valid */ 2866116716Sluigi if (i > a) 2867116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2868116716Sluigi i+low, a+low); 2869116716Sluigi if (*s == '-') 2870116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2871116716Sluigi } 2872116716Sluigi for (; i <= a; i++) 2873117328Sluigi map[i/32] |= 1<<(i & 31); 2874116716Sluigi i = -1; 2875116716Sluigi if (*s == '-') 2876116716Sluigi i = a; 2877117328Sluigi else if (*s == '}') 2878116716Sluigi break; 287998943Sluigi av = s+1; 288098943Sluigi } 288198943Sluigi return; 288298943Sluigi } 2883117328Sluigi av = p; 2884117328Sluigi if (av) /* then *av must be a ',' */ 2885117328Sluigi av++; 288698943Sluigi 2887117328Sluigi /* Check this entry */ 2888117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2889117328Sluigi /* 2890117328Sluigi * 'any' turns the entire list into a NOP. 2891117328Sluigi * 'not any' never matches, so it is removed from the 2892117328Sluigi * list unless it is the only item, in which case we 2893117328Sluigi * report an error. 2894117328Sluigi */ 2895117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2896117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2897117328Sluigi errx(EX_DATAERR, "not any never matches"); 2898117328Sluigi } 2899117328Sluigi /* else do nothing and skip this entry */ 2900128067Smaxim return; 2901117328Sluigi } 2902117328Sluigi /* A single IP can be stored in an optimized format */ 2903117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 290498943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2905117328Sluigi return; 2906117328Sluigi } 2907117328Sluigi len += 2; /* two words... */ 2908117328Sluigi d += 2; 2909117328Sluigi } /* end while */ 2910162363Sjhay if (len + 1 > F_LEN_MASK) 2911162363Sjhay errx(EX_DATAERR, "address list too long"); 2912117328Sluigi cmd->o.len |= len+1; 291398943Sluigi} 291498943Sluigi 291598943Sluigi 2916145246Sbrooks/* Try to find ipv6 address by hostname */ 2917145246Sbrooksstatic int 2918145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2919145246Sbrooks{ 2920145246Sbrooks struct hostent *he; 2921145246Sbrooks 2922145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2923145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2924145246Sbrooks return(-1); 2925145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2926145246Sbrooks } 2927145246Sbrooks return(0); 2928145246Sbrooks} 2929145246Sbrooks 2930145246Sbrooks 2931145246Sbrooks/* n2mask sets n bits of the mask */ 2932145246Sbrooksstatic void 2933145246Sbrooksn2mask(struct in6_addr *mask, int n) 2934145246Sbrooks{ 2935145246Sbrooks static int minimask[9] = 2936145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2937145246Sbrooks u_char *p; 2938145246Sbrooks 2939145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2940145246Sbrooks p = (u_char *) mask; 2941145246Sbrooks for (; n > 0; p++, n -= 8) { 2942145246Sbrooks if (n >= 8) 2943145246Sbrooks *p = 0xff; 2944145246Sbrooks else 2945145246Sbrooks *p = minimask[n]; 2946145246Sbrooks } 2947145246Sbrooks return; 2948145246Sbrooks} 2949145246Sbrooks 2950145246Sbrooks 295198943Sluigi/* 2952145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2953145246Sbrooks * Update length as appropriate. 2954145246Sbrooks * The following formats are allowed: 2955145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2956145246Sbrooks * me returns O_IP6_*_ME 2957145246Sbrooks * 2958145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2959145246Sbrooks * 03f1::234:123:0342/24 address/mask 2960145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2961145246Sbrooks * 2962145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2963145246Sbrooks * are typically random past the initial prefix. 2964145246Sbrooks * Return 1 on success, 0 on failure. 2965145246Sbrooks */ 2966145246Sbrooksstatic int 2967145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2968145246Sbrooks{ 2969145246Sbrooks int len = 0; 2970145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2971145246Sbrooks /* 2972145246Sbrooks * Needed for multiple address. 2973145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2974145246Sbrooks */ 2975145246Sbrooks 2976145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2977145246Sbrooks 2978145246Sbrooks if (strcmp(av, "any") == 0) 2979145246Sbrooks return (1); 2980145246Sbrooks 2981145246Sbrooks 2982145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2983145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2984145246Sbrooks return (1); 2985145246Sbrooks } 2986145246Sbrooks 2987145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2988145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2989145246Sbrooks return (1); 2990145246Sbrooks } 2991145246Sbrooks 2992145246Sbrooks av = strdup(av); 2993145246Sbrooks while (av) { 2994145246Sbrooks /* 2995145246Sbrooks * After the address we can have '/' indicating a mask, 2996145246Sbrooks * or ',' indicating another address follows. 2997145246Sbrooks */ 2998145246Sbrooks 2999145246Sbrooks char *p; 3000145246Sbrooks int masklen; 3001145246Sbrooks char md = '\0'; 3002145246Sbrooks 3003145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 3004145246Sbrooks md = *p; /* save the separator */ 3005145246Sbrooks *p = '\0'; /* terminate address string */ 3006145246Sbrooks p++; /* and skip past it */ 3007145246Sbrooks } 3008145246Sbrooks /* now p points to NULL, mask or next entry */ 3009145246Sbrooks 3010145246Sbrooks /* lookup stores address in *d as a side effect */ 3011145246Sbrooks if (lookup_host6(av, d) != 0) { 3012145246Sbrooks /* XXX: failed. Free memory and go */ 3013145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 3014145246Sbrooks } 3015145246Sbrooks /* next, look at the mask, if any */ 3016145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 3017145246Sbrooks if (masklen > 128 || masklen < 0) 3018145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 3019145246Sbrooks else 3020145246Sbrooks n2mask(&d[1], masklen); 3021145246Sbrooks 3022145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 3023145246Sbrooks 3024145246Sbrooks /* find next separator */ 3025145246Sbrooks 3026145246Sbrooks if (md == '/') { /* find separator past the mask */ 3027145246Sbrooks p = strpbrk(p, ","); 3028145246Sbrooks if (p != NULL) 3029145246Sbrooks p++; 3030145246Sbrooks } 3031145246Sbrooks av = p; 3032145246Sbrooks 3033145246Sbrooks /* Check this entry */ 3034145246Sbrooks if (masklen == 0) { 3035145246Sbrooks /* 3036145246Sbrooks * 'any' turns the entire list into a NOP. 3037145246Sbrooks * 'not any' never matches, so it is removed from the 3038145246Sbrooks * list unless it is the only item, in which case we 3039145246Sbrooks * report an error. 3040145246Sbrooks */ 3041145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3042145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3043145246Sbrooks continue; 3044145246Sbrooks } 3045145246Sbrooks 3046145246Sbrooks /* 3047145246Sbrooks * A single IP can be stored alone 3048145246Sbrooks */ 3049145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3050145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3051145246Sbrooks break; 3052145246Sbrooks } 3053145246Sbrooks 3054145246Sbrooks /* Update length and pointer to arguments */ 3055145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3056145246Sbrooks d += 2; 3057145246Sbrooks } /* end while */ 3058145246Sbrooks 3059145246Sbrooks /* 3060145246Sbrooks * Total length of the command, remember that 1 is the size of 3061145246Sbrooks * the base command. 3062145246Sbrooks */ 3063162363Sjhay if (len + 1 > F_LEN_MASK) 3064162363Sjhay errx(EX_DATAERR, "address list too long"); 3065145246Sbrooks cmd->o.len |= len+1; 3066145246Sbrooks free(av); 3067145246Sbrooks return (1); 3068145246Sbrooks} 3069145246Sbrooks 3070145246Sbrooks/* 3071145246Sbrooks * fills command for ipv6 flow-id filtering 3072145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3073145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3074145246Sbrooks * additional flow-id we want to filter, the basic is 1 3075145246Sbrooks */ 3076145246Sbrooksvoid 3077145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3078145246Sbrooks{ 3079145246Sbrooks u_int32_t type; /* Current flow number */ 3080145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3081145246Sbrooks char *s = av; 3082145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3083145246Sbrooks 3084145246Sbrooks while (s) { 3085145246Sbrooks av = strsep( &s, ",") ; 3086145246Sbrooks type = strtoul(av, &av, 0); 3087145246Sbrooks if (*av != ',' && *av != '\0') 3088145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3089145246Sbrooks if (type > 0xfffff) 3090145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3091145246Sbrooks cmd->d[nflow] |= type; 3092145246Sbrooks nflow++; 3093145246Sbrooks } 3094145246Sbrooks if( nflow > 0 ) { 3095145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3096145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3097145246Sbrooks cmd->o.arg1 = nflow; 3098145246Sbrooks } 3099145246Sbrooks else { 3100145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3101145246Sbrooks } 3102145246Sbrooks} 3103145246Sbrooks 3104145246Sbrooksstatic ipfw_insn * 3105145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3106145246Sbrooks{ 3107145246Sbrooks 3108145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3109145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3110145246Sbrooks ; 3111145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3112145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3113145246Sbrooks } else if (F_LEN(cmd) == 3114145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3115145246Sbrooks /* single IP, no mask*/ 3116145246Sbrooks cmd->opcode = O_IP6_SRC; 3117145246Sbrooks } else { /* addr/mask opt */ 3118145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3119145246Sbrooks } 3120145246Sbrooks return cmd; 3121145246Sbrooks} 3122145246Sbrooks 3123145246Sbrooksstatic ipfw_insn * 3124145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3125145246Sbrooks{ 3126145246Sbrooks 3127145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3128145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3129145246Sbrooks ; 3130145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3131145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3132145246Sbrooks } else if (F_LEN(cmd) == 3133145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3134145246Sbrooks /* single IP, no mask*/ 3135145246Sbrooks cmd->opcode = O_IP6_DST; 3136145246Sbrooks } else { /* addr/mask opt */ 3137145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3138145246Sbrooks } 3139145246Sbrooks return cmd; 3140145246Sbrooks} 3141145246Sbrooks 3142145246Sbrooks 3143145246Sbrooks/* 314498943Sluigi * helper function to process a set of flags and set bits in the 314598943Sluigi * appropriate masks. 314698943Sluigi */ 314798943Sluigistatic void 314898943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 314998943Sluigi struct _s_x *flags, char *p) 315098943Sluigi{ 3151117328Sluigi uint8_t set=0, clear=0; 315298943Sluigi 315398943Sluigi while (p && *p) { 315498943Sluigi char *q; /* points to the separator */ 315598943Sluigi int val; 3156117328Sluigi uint8_t *which; /* mask we are working on */ 315798943Sluigi 315898943Sluigi if (*p == '!') { 315998943Sluigi p++; 316098943Sluigi which = &clear; 316198943Sluigi } else 316298943Sluigi which = &set; 316398943Sluigi q = strchr(p, ','); 316498943Sluigi if (q) 316598943Sluigi *q++ = '\0'; 316698943Sluigi val = match_token(flags, p); 316798943Sluigi if (val <= 0) 316898943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3169117328Sluigi *which |= (uint8_t)val; 317098943Sluigi p = q; 317198943Sluigi } 317298943Sluigi cmd->opcode = opcode; 317398943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 317498943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 317598943Sluigi} 317698943Sluigi 317798943Sluigi 317898943Sluigistatic void 317998943Sluigidelete(int ac, char *av[]) 318098943Sluigi{ 3181117328Sluigi uint32_t rulenum; 3182117469Sluigi struct dn_pipe p; 318398943Sluigi int i; 318498943Sluigi int exitval = EX_OK; 3185101628Sluigi int do_set = 0; 318698943Sluigi 3187117469Sluigi memset(&p, 0, sizeof p); 318898943Sluigi 318998943Sluigi av++; ac--; 3190130013Scsjp NEED1("missing rule specification"); 3191140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3192101978Sluigi do_set = 1; /* delete set */ 3193101628Sluigi ac--; av++; 3194101978Sluigi } 319598943Sluigi 319698943Sluigi /* Rule number */ 319798943Sluigi while (ac && isdigit(**av)) { 319898943Sluigi i = atoi(*av); av++; ac--; 3199165648Spiso if (do_nat) { 3200165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3201165648Spiso if (exitval) { 3202165648Spiso exitval = EX_UNAVAILABLE; 3203165648Spiso warn("rule %u not available", i); 3204165648Spiso } 3205165648Spiso } else if (do_pipe) { 320698943Sluigi if (do_pipe == 1) 3207117469Sluigi p.pipe_nr = i; 320898943Sluigi else 3209117469Sluigi p.fs.fs_nr = i; 3210117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 321198943Sluigi if (i) { 321298943Sluigi exitval = 1; 321398943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3214117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 321598943Sluigi } 321698943Sluigi } else { 3217101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3218117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 321998943Sluigi if (i) { 322098943Sluigi exitval = EX_UNAVAILABLE; 322198943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 322298943Sluigi rulenum); 322398943Sluigi } 322498943Sluigi } 322598943Sluigi } 322698943Sluigi if (exitval != EX_OK) 322798943Sluigi exit(exitval); 322898943Sluigi} 322998943Sluigi 323098943Sluigi 323198943Sluigi/* 323298943Sluigi * fill the interface structure. We do not check the name as we can 323398943Sluigi * create interfaces dynamically, so checking them at insert time 323498943Sluigi * makes relatively little sense. 3235121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3236121816Sbrooks * patterns which match interfaces. 323798943Sluigi */ 323898943Sluigistatic void 323998943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 324098943Sluigi{ 324198943Sluigi cmd->name[0] = '\0'; 324298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 324398943Sluigi 324498943Sluigi /* Parse the interface or address */ 3245140271Sbrooks if (strcmp(arg, "any") == 0) 324698943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 324798943Sluigi else if (!isdigit(*arg)) { 3248121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3249121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 325098943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 325198943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 325298943Sluigi} 325398943Sluigi 3254165648Spiso/* 3255165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3256165648Spiso * 3257165648Spiso * n->ip ip address of interface "ifn" 3258165648Spiso * n->if_name copy of interface name "ifn" 3259165648Spiso */ 326098943Sluigistatic void 3261165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3262165648Spiso{ 3263165648Spiso size_t needed; 3264165648Spiso int mib[6]; 3265165648Spiso char *buf, *lim, *next; 3266165648Spiso struct if_msghdr *ifm; 3267165648Spiso struct ifa_msghdr *ifam; 3268165648Spiso struct sockaddr_dl *sdl; 3269165648Spiso struct sockaddr_in *sin; 3270165648Spiso int ifIndex, ifMTU; 3271165648Spiso 3272165648Spiso mib[0] = CTL_NET; 3273165648Spiso mib[1] = PF_ROUTE; 3274165648Spiso mib[2] = 0; 3275165648Spiso mib[3] = AF_INET; 3276165648Spiso mib[4] = NET_RT_IFLIST; 3277165648Spiso mib[5] = 0; 3278165648Spiso/* 3279165648Spiso * Get interface data. 3280165648Spiso */ 3281165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3282165648Spiso err(1, "iflist-sysctl-estimate"); 3283165648Spiso if ((buf = malloc(needed)) == NULL) 3284165648Spiso errx(1, "malloc failed"); 3285165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3286165648Spiso err(1, "iflist-sysctl-get"); 3287165648Spiso lim = buf + needed; 3288165648Spiso/* 3289165648Spiso * Loop through interfaces until one with 3290165648Spiso * given name is found. This is done to 3291165648Spiso * find correct interface index for routing 3292165648Spiso * message processing. 3293165648Spiso */ 3294165648Spiso ifIndex = 0; 3295165648Spiso next = buf; 3296165648Spiso while (next < lim) { 3297165648Spiso ifm = (struct if_msghdr *)next; 3298165648Spiso next += ifm->ifm_msglen; 3299165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3300165648Spiso if (verbose) 3301165648Spiso warnx("routing message version %d " 3302165648Spiso "not understood", ifm->ifm_version); 3303165648Spiso continue; 3304165648Spiso } 3305165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3306165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3307165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3308165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3309165648Spiso ifIndex = ifm->ifm_index; 3310165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3311165648Spiso break; 3312165648Spiso } 3313165648Spiso } 3314165648Spiso } 3315165648Spiso if (!ifIndex) 3316165648Spiso errx(1, "unknown interface name %s", ifn); 3317165648Spiso/* 3318165648Spiso * Get interface address. 3319165648Spiso */ 3320165648Spiso sin = NULL; 3321165648Spiso while (next < lim) { 3322165648Spiso ifam = (struct ifa_msghdr *)next; 3323165648Spiso next += ifam->ifam_msglen; 3324165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3325165648Spiso if (verbose) 3326165648Spiso warnx("routing message version %d " 3327165648Spiso "not understood", ifam->ifam_version); 3328165648Spiso continue; 3329165648Spiso } 3330165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3331165648Spiso break; 3332165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3333165648Spiso int i; 3334165648Spiso char *cp = (char *)(ifam + 1); 3335165648Spiso 3336165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3337165648Spiso if (ifam->ifam_addrs & i) 3338165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3339165648Spiso } 3340165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3341165648Spiso sin = (struct sockaddr_in *)cp; 3342165648Spiso break; 3343165648Spiso } 3344165648Spiso } 3345165648Spiso } 3346165648Spiso if (sin == NULL) 3347165648Spiso errx(1, "%s: cannot get interface address", ifn); 3348165648Spiso 3349165648Spiso n->ip = sin->sin_addr; 3350165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3351165648Spiso 3352165648Spiso free(buf); 3353165648Spiso} 3354165648Spiso 3355165648Spiso/* 3356165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3357165648Spiso * it would be better to move them outside natd.c, in a file 3358165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3359165648Spiso * with it. 3360165648Spiso */ 3361165648Spiso 3362165648Spiso/* 3363165648Spiso * Definition of a port range, and macros to deal with values. 3364165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3365165648Spiso * LO 16-bits == number of ports in range 3366165648Spiso * NOTES: - Port values are not stored in network byte order. 3367165648Spiso */ 3368165648Spiso 3369165648Spiso#define port_range u_long 3370165648Spiso 3371165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3372165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3373165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3374165648Spiso 3375165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3376165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3377165648Spiso 3378165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3379165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3380165648Spiso 3381165648Spisostatic void 3382165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3383165648Spiso{ 3384165648Spiso struct hostent* hp; 3385165648Spiso 3386165648Spiso if (inet_aton (str, addr)) 3387165648Spiso return; 3388165648Spiso 3389165648Spiso hp = gethostbyname (str); 3390165648Spiso if (!hp) 3391165648Spiso errx (1, "unknown host %s", str); 3392165648Spiso 3393165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3394165648Spiso} 3395165648Spiso 3396165648Spisostatic int 3397165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3398165648Spiso{ 3399165648Spiso char* sep; 3400165648Spiso struct servent* sp; 3401165648Spiso char* end; 3402165648Spiso u_short loPort; 3403165648Spiso u_short hiPort; 3404165648Spiso 3405165648Spiso /* First see if this is a service, return corresponding port if so. */ 3406165648Spiso sp = getservbyname (str,proto); 3407165648Spiso if (sp) { 3408165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3409165648Spiso SETNUMPORTS(*portRange, 1); 3410165648Spiso return 0; 3411165648Spiso } 3412165648Spiso 3413165648Spiso /* Not a service, see if it's a single port or port range. */ 3414165648Spiso sep = strchr (str, '-'); 3415165648Spiso if (sep == NULL) { 3416165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3417165648Spiso if (end != str) { 3418165648Spiso /* Single port. */ 3419165648Spiso SETNUMPORTS(*portRange, 1); 3420165648Spiso return 0; 3421165648Spiso } 3422165648Spiso 3423165648Spiso /* Error in port range field. */ 3424165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3425165648Spiso } 3426165648Spiso 3427165648Spiso /* Port range, get the values and sanity check. */ 3428165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3429165648Spiso SETLOPORT(*portRange, loPort); 3430165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3431165648Spiso if (loPort <= hiPort) 3432165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3433165648Spiso 3434165648Spiso if (GETNUMPORTS(*portRange) == 0) 3435165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3436165648Spiso 3437165648Spiso return 0; 3438165648Spiso} 3439165648Spiso 3440165648Spisostatic int 3441165648SpisoStrToProto (const char* str) 3442165648Spiso{ 3443165648Spiso if (!strcmp (str, "tcp")) 3444165648Spiso return IPPROTO_TCP; 3445165648Spiso 3446165648Spiso if (!strcmp (str, "udp")) 3447165648Spiso return IPPROTO_UDP; 3448165648Spiso 3449165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3450165648Spiso} 3451165648Spiso 3452165648Spisostatic int 3453165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3454165648Spiso port_range *portRange) 3455165648Spiso{ 3456165648Spiso char* ptr; 3457165648Spiso 3458165648Spiso ptr = strchr (str, ':'); 3459165648Spiso if (!ptr) 3460165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3461165648Spiso 3462165648Spiso *ptr = '\0'; 3463165648Spiso ++ptr; 3464165648Spiso 3465165648Spiso StrToAddr (str, addr); 3466165648Spiso return StrToPortRange (ptr, proto, portRange); 3467165648Spiso} 3468165648Spiso 3469165648Spiso/* End of stuff taken from natd.c. */ 3470165648Spiso 3471165648Spiso#define INC_ARGCV() do { \ 3472165648Spiso (*_av)++; \ 3473165648Spiso (*_ac)--; \ 3474165648Spiso av = *_av; \ 3475165648Spiso ac = *_ac; \ 3476165648Spiso} while(0) 3477165648Spiso 3478165648Spiso/* 3479165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3480165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3481165648Spiso * and SetupProtoRedirect() from natd.c. 3482165648Spiso * 3483165648Spiso * Every setup_* function fills at least one redirect entry 3484165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3485165648Spiso * in buf. 3486165648Spiso * 3487165648Spiso * The format of data in buf is: 3488165648Spiso * 3489165648Spiso * 3490165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3491165648Spiso * 3492165648Spiso * ------------------------------------- ------------ 3493165648Spiso * | | .....X ... | | | | ..... 3494165648Spiso * ------------------------------------- ...... ------------ 3495165648Spiso * ^ 3496165648Spiso * spool_cnt n=0 ...... n=(X-1) 3497165648Spiso * 3498165648Spiso * len points to the amount of available space in buf 3499165648Spiso * space counts the memory consumed by every function 3500165648Spiso * 3501165648Spiso * XXX - Every function get all the argv params so it 3502165648Spiso * has to check, in optional parameters, that the next 3503165648Spiso * args is a valid option for the redir entry and not 3504165648Spiso * another token. Only redir_port and redir_proto are 3505165648Spiso * affected by this. 3506165648Spiso */ 3507165648Spiso 3508165648Spisostatic int 3509165648Spisosetup_redir_addr(char *spool_buf, int len, 3510165648Spiso int *_ac, char ***_av) 3511165648Spiso{ 3512165648Spiso char **av, *sep; /* Token separator. */ 3513165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3514165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3515165648Spiso int ac, i, space, lsnat; 3516165648Spiso struct cfg_redir *r; 3517165648Spiso struct cfg_spool *tmp; 3518165648Spiso 3519165648Spiso av = *_av; 3520165648Spiso ac = *_ac; 3521165648Spiso space = 0; 3522165648Spiso lsnat = 0; 3523165648Spiso if (len >= SOF_REDIR) { 3524165648Spiso r = (struct cfg_redir *)spool_buf; 3525165648Spiso /* Skip cfg_redir at beginning of buf. */ 3526165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3527165648Spiso space = SOF_REDIR; 3528165648Spiso len -= SOF_REDIR; 3529165648Spiso } else 3530165648Spiso goto nospace; 3531165648Spiso r->mode = REDIR_ADDR; 3532165648Spiso /* Extract local address. */ 3533165648Spiso if (ac == 0) 3534165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3535165648Spiso sep = strchr(*av, ','); 3536165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3537165648Spiso r->laddr.s_addr = INADDR_NONE; 3538165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3539165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3540165648Spiso lsnat = 1; 3541165648Spiso } else 3542165648Spiso StrToAddr(*av, &r->laddr); 3543165648Spiso INC_ARGCV(); 3544165648Spiso 3545165648Spiso /* Extract public address. */ 3546165648Spiso if (ac == 0) 3547165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3548165648Spiso StrToAddr(*av, &r->paddr); 3549165648Spiso INC_ARGCV(); 3550165648Spiso 3551165648Spiso /* Setup LSNAT server pool. */ 3552165648Spiso if (sep) { 3553165648Spiso sep = strtok(tmp_spool_buf, ","); 3554165648Spiso while (sep != NULL) { 3555165648Spiso tmp = (struct cfg_spool *)spool_buf; 3556165648Spiso if (len < SOF_SPOOL) 3557165648Spiso goto nospace; 3558165648Spiso len -= SOF_SPOOL; 3559165648Spiso space += SOF_SPOOL; 3560165648Spiso StrToAddr(sep, &tmp->addr); 3561165648Spiso tmp->port = ~0; 3562165648Spiso r->spool_cnt++; 3563165648Spiso /* Point to the next possible cfg_spool. */ 3564165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3565165648Spiso sep = strtok(NULL, ","); 3566165648Spiso } 3567165648Spiso } 3568165648Spiso return(space); 3569165648Spisonospace: 3570165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3571165648Spiso} 3572165648Spiso 3573165648Spisostatic int 3574165648Spisosetup_redir_port(char *spool_buf, int len, 3575165648Spiso int *_ac, char ***_av) 3576165648Spiso{ 3577165648Spiso char **av, *sep, *protoName; 3578165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3579165648Spiso int ac, space, lsnat; 3580165648Spiso struct cfg_redir *r; 3581165648Spiso struct cfg_spool *tmp; 3582165648Spiso u_short numLocalPorts; 3583165648Spiso port_range portRange; 3584165648Spiso 3585165648Spiso av = *_av; 3586165648Spiso ac = *_ac; 3587165648Spiso space = 0; 3588165648Spiso lsnat = 0; 3589165648Spiso numLocalPorts = 0; 3590165648Spiso 3591165648Spiso if (len >= SOF_REDIR) { 3592165648Spiso r = (struct cfg_redir *)spool_buf; 3593165648Spiso /* Skip cfg_redir at beginning of buf. */ 3594165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3595165648Spiso space = SOF_REDIR; 3596165648Spiso len -= SOF_REDIR; 3597165648Spiso } else 3598165648Spiso goto nospace; 3599165648Spiso r->mode = REDIR_PORT; 3600165648Spiso /* 3601165648Spiso * Extract protocol. 3602165648Spiso */ 3603165648Spiso if (ac == 0) 3604165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3605165648Spiso r->proto = StrToProto(*av); 3606165648Spiso protoName = *av; 3607165648Spiso INC_ARGCV(); 3608165648Spiso 3609165648Spiso /* 3610165648Spiso * Extract local address. 3611165648Spiso */ 3612165648Spiso if (ac == 0) 3613165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3614165648Spiso 3615165648Spiso sep = strchr(*av, ','); 3616165648Spiso /* LSNAT redirection syntax. */ 3617165648Spiso if (sep) { 3618165648Spiso r->laddr.s_addr = INADDR_NONE; 3619165648Spiso r->lport = ~0; 3620165648Spiso numLocalPorts = 1; 3621165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3622165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3623165648Spiso lsnat = 1; 3624165648Spiso } else { 3625165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3626165648Spiso &portRange) != 0) 3627165648Spiso errx(EX_DATAERR, "redirect_port:" 3628165648Spiso "invalid local port range"); 3629165648Spiso 3630165648Spiso r->lport = GETLOPORT(portRange); 3631165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3632165648Spiso } 3633165648Spiso INC_ARGCV(); 3634165648Spiso 3635165648Spiso /* 3636165648Spiso * Extract public port and optionally address. 3637165648Spiso */ 3638165648Spiso if (ac == 0) 3639165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3640165648Spiso 3641165648Spiso sep = strchr (*av, ':'); 3642165648Spiso if (sep) { 3643165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3644165648Spiso &portRange) != 0) 3645165648Spiso errx(EX_DATAERR, "redirect_port:" 3646165648Spiso "invalid public port range"); 3647165648Spiso } else { 3648165648Spiso r->paddr.s_addr = INADDR_ANY; 3649165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3650165648Spiso errx(EX_DATAERR, "redirect_port:" 3651165648Spiso "invalid public port range"); 3652165648Spiso } 3653165648Spiso 3654165648Spiso r->pport = GETLOPORT(portRange); 3655165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3656165648Spiso INC_ARGCV(); 3657165648Spiso 3658165648Spiso /* 3659165648Spiso * Extract remote address and optionally port. 3660165648Spiso */ 3661165648Spiso /* 3662165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3663165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3664165648Spiso */ 3665165648Spiso if (ac != 0 && !isalpha(**av)) { 3666165648Spiso sep = strchr (*av, ':'); 3667165648Spiso if (sep) { 3668165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3669165648Spiso &portRange) != 0) 3670165648Spiso errx(EX_DATAERR, "redirect_port:" 3671165648Spiso "invalid remote port range"); 3672165648Spiso } else { 3673165648Spiso SETLOPORT(portRange, 0); 3674165648Spiso SETNUMPORTS(portRange, 1); 3675165648Spiso StrToAddr (*av, &r->raddr); 3676165648Spiso } 3677165648Spiso INC_ARGCV(); 3678165648Spiso } else { 3679165648Spiso SETLOPORT(portRange, 0); 3680165648Spiso SETNUMPORTS(portRange, 1); 3681165648Spiso r->raddr.s_addr = INADDR_ANY; 3682165648Spiso } 3683165648Spiso r->rport = GETLOPORT(portRange); 3684165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3685165648Spiso 3686165648Spiso /* 3687165648Spiso * Make sure port ranges match up, then add the redirect ports. 3688165648Spiso */ 3689165648Spiso if (numLocalPorts != r->pport_cnt) 3690165648Spiso errx(EX_DATAERR, "redirect_port:" 3691165648Spiso "port ranges must be equal in size"); 3692165648Spiso 3693165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3694165648Spiso if (r->rport_cnt != numLocalPorts && 3695165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3696165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3697165648Spiso "be 0 or equal to local port range in size"); 3698165648Spiso 3699165648Spiso /* 3700165648Spiso * Setup LSNAT server pool. 3701165648Spiso */ 3702165648Spiso if (lsnat) { 3703165648Spiso sep = strtok(tmp_spool_buf, ","); 3704165648Spiso while (sep != NULL) { 3705165648Spiso tmp = (struct cfg_spool *)spool_buf; 3706165648Spiso if (len < SOF_SPOOL) 3707165648Spiso goto nospace; 3708165648Spiso len -= SOF_SPOOL; 3709165648Spiso space += SOF_SPOOL; 3710165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3711165648Spiso &portRange) != 0) 3712165648Spiso errx(EX_DATAERR, "redirect_port:" 3713165648Spiso "invalid local port range"); 3714165648Spiso if (GETNUMPORTS(portRange) != 1) 3715165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3716165648Spiso "must be single in this context"); 3717165648Spiso tmp->port = GETLOPORT(portRange); 3718165648Spiso r->spool_cnt++; 3719165648Spiso /* Point to the next possible cfg_spool. */ 3720165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3721165648Spiso sep = strtok(NULL, ","); 3722165648Spiso } 3723165648Spiso } 3724165648Spiso return (space); 3725165648Spisonospace: 3726165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3727165648Spiso} 3728165648Spiso 3729165648Spisostatic int 3730165648Spisosetup_redir_proto(char *spool_buf, int len, 3731165648Spiso int *_ac, char ***_av) 3732165648Spiso{ 3733165648Spiso char **av; 3734165648Spiso int ac, i, space; 3735165648Spiso struct protoent *protoent; 3736165648Spiso struct cfg_redir *r; 3737165648Spiso 3738165648Spiso av = *_av; 3739165648Spiso ac = *_ac; 3740165648Spiso if (len >= SOF_REDIR) { 3741165648Spiso r = (struct cfg_redir *)spool_buf; 3742165648Spiso /* Skip cfg_redir at beginning of buf. */ 3743165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3744165648Spiso space = SOF_REDIR; 3745165648Spiso len -= SOF_REDIR; 3746165648Spiso } else 3747165648Spiso goto nospace; 3748165648Spiso r->mode = REDIR_PROTO; 3749165648Spiso /* 3750165648Spiso * Extract protocol. 3751165648Spiso */ 3752165648Spiso if (ac == 0) 3753165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3754165648Spiso 3755165648Spiso protoent = getprotobyname(*av); 3756165648Spiso if (protoent == NULL) 3757165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3758165648Spiso else 3759165648Spiso r->proto = protoent->p_proto; 3760165648Spiso 3761165648Spiso INC_ARGCV(); 3762165648Spiso 3763165648Spiso /* 3764165648Spiso * Extract local address. 3765165648Spiso */ 3766165648Spiso if (ac == 0) 3767165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3768165648Spiso else 3769165648Spiso StrToAddr(*av, &r->laddr); 3770165648Spiso 3771165648Spiso INC_ARGCV(); 3772165648Spiso 3773165648Spiso /* 3774165648Spiso * Extract optional public address. 3775165648Spiso */ 3776165648Spiso if (ac == 0) { 3777165648Spiso r->paddr.s_addr = INADDR_ANY; 3778165648Spiso r->raddr.s_addr = INADDR_ANY; 3779165648Spiso } else { 3780165648Spiso /* see above in setup_redir_port() */ 3781165648Spiso if (!isalpha(**av)) { 3782165648Spiso StrToAddr(*av, &r->paddr); 3783165648Spiso INC_ARGCV(); 3784165648Spiso 3785165648Spiso /* 3786165648Spiso * Extract optional remote address. 3787165648Spiso */ 3788165648Spiso /* see above in setup_redir_port() */ 3789165648Spiso if (ac!=0 && !isalpha(**av)) { 3790165648Spiso StrToAddr(*av, &r->raddr); 3791165648Spiso INC_ARGCV(); 3792165648Spiso } 3793165648Spiso } 3794165648Spiso } 3795165648Spiso return (space); 3796165648Spisonospace: 3797165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3798165648Spiso} 3799165648Spiso 3800165648Spisostatic void 3801165648Spisoshow_nat(int ac, char **av); 3802165648Spiso 3803165648Spisostatic void 3804165648Spisoprint_nat_config(char *buf) { 3805165648Spiso struct cfg_nat *n; 3806165648Spiso int i, cnt, flag, off; 3807165648Spiso struct cfg_redir *t; 3808165648Spiso struct cfg_spool *s; 3809165648Spiso struct protoent *p; 3810165648Spiso 3811165648Spiso n = (struct cfg_nat *)buf; 3812165648Spiso flag = 1; 3813165648Spiso off = sizeof(*n); 3814165648Spiso printf("ipfw nat %u config", n->id); 3815165648Spiso if (strlen(n->if_name) != 0) 3816165648Spiso printf(" if %s", n->if_name); 3817165648Spiso else if (n->ip.s_addr != 0) 3818165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3819165648Spiso while (n->mode != 0) { 3820165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3821165648Spiso printf(" log"); 3822165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3823165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3824165648Spiso printf(" deny_in"); 3825165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3826165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3827165648Spiso printf(" same_ports"); 3828165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3829165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3830165648Spiso printf(" unreg_only"); 3831165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3832165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3833165648Spiso printf(" reset"); 3834165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3835165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3836165648Spiso printf(" reverse"); 3837165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3838165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3839165648Spiso printf(" proxy_only"); 3840165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3841165648Spiso } 3842165648Spiso } 3843165648Spiso /* Print all the redirect's data configuration. */ 3844165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3845165648Spiso t = (struct cfg_redir *)&buf[off]; 3846165648Spiso off += SOF_REDIR; 3847165648Spiso switch (t->mode) { 3848165648Spiso case REDIR_ADDR: 3849165648Spiso printf(" redirect_addr"); 3850165648Spiso if (t->spool_cnt == 0) 3851165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3852165648Spiso else 3853165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3854165648Spiso s = (struct cfg_spool *)&buf[off]; 3855165648Spiso if (i) 3856165648Spiso printf(","); 3857165648Spiso else 3858165648Spiso printf(" "); 3859165648Spiso printf("%s", inet_ntoa(s->addr)); 3860165648Spiso off += SOF_SPOOL; 3861165648Spiso } 3862165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3863165648Spiso break; 3864165648Spiso case REDIR_PORT: 3865165648Spiso p = getprotobynumber(t->proto); 3866165648Spiso printf(" redirect_port %s ", p->p_name); 3867165648Spiso if (!t->spool_cnt) { 3868165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3869165648Spiso if (t->pport_cnt > 1) 3870165648Spiso printf("-%u", t->lport + 3871165648Spiso t->pport_cnt - 1); 3872165648Spiso } else 3873165648Spiso for (i=0; i < t->spool_cnt; i++) { 3874165648Spiso s = (struct cfg_spool *)&buf[off]; 3875165648Spiso if (i) 3876165648Spiso printf(","); 3877165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3878165648Spiso s->port); 3879165648Spiso off += SOF_SPOOL; 3880165648Spiso } 3881165648Spiso 3882165648Spiso printf(" "); 3883165648Spiso if (t->paddr.s_addr) 3884165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3885165648Spiso printf("%u", t->pport); 3886165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3887165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3888165648Spiso 3889165648Spiso if (t->raddr.s_addr) { 3890165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3891165648Spiso if (t->rport) { 3892165648Spiso printf(":%u", t->rport); 3893165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3894165648Spiso printf("-%u", t->rport + 3895165648Spiso t->rport_cnt - 1); 3896165648Spiso } 3897165648Spiso } 3898165648Spiso break; 3899165648Spiso case REDIR_PROTO: 3900165648Spiso p = getprotobynumber(t->proto); 3901165648Spiso printf(" redirect_proto %s %s", p->p_name, 3902165648Spiso inet_ntoa(t->laddr)); 3903165648Spiso if (t->paddr.s_addr != 0) { 3904165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3905165648Spiso if (t->raddr.s_addr) 3906165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3907165648Spiso } 3908165648Spiso break; 3909165648Spiso default: 3910165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3911165648Spiso break; 3912165648Spiso } 3913165648Spiso } 3914165648Spiso printf("\n"); 3915165648Spiso} 3916165648Spiso 3917165648Spisostatic void 3918165648Spisoconfig_nat(int ac, char **av) 3919165648Spiso{ 3920165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3921165648Spiso struct in_addr ip; 3922165648Spiso int i, len, off, tok; 3923165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3924165648Spiso 3925165648Spiso len = NAT_BUF_LEN; 3926165648Spiso /* Offset in buf: save space for n at the beginning. */ 3927165648Spiso off = sizeof(*n); 3928165648Spiso memset(buf, 0, sizeof(buf)); 3929165648Spiso n = (struct cfg_nat *)buf; 3930165648Spiso 3931165648Spiso av++; ac--; 3932165648Spiso /* Nat id. */ 3933165648Spiso if (ac && isdigit(**av)) { 3934165648Spiso id = *av; 3935165648Spiso i = atoi(*av); 3936165648Spiso ac--; av++; 3937165648Spiso n->id = i; 3938165648Spiso } else 3939165648Spiso errx(EX_DATAERR, "missing nat id"); 3940165648Spiso if (ac == 0) 3941165648Spiso errx(EX_DATAERR, "missing option"); 3942165648Spiso 3943165648Spiso while (ac > 0) { 3944165648Spiso tok = match_token(nat_params, *av); 3945165648Spiso ac--; av++; 3946165648Spiso switch (tok) { 3947165648Spiso case TOK_IP: 3948165648Spiso if (ac == 0) 3949165648Spiso errx(EX_DATAERR, "missing option"); 3950165648Spiso if (!inet_aton(av[0], &(n->ip))) 3951165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 3952165648Spiso av[0]); 3953165648Spiso ac--; av++; 3954165648Spiso break; 3955165648Spiso case TOK_IF: 3956165648Spiso set_addr_dynamic(av[0], n); 3957165648Spiso ac--; av++; 3958165648Spiso break; 3959165648Spiso case TOK_ALOG: 3960165648Spiso n->mode |= PKT_ALIAS_LOG; 3961165648Spiso break; 3962165648Spiso case TOK_DENY_INC: 3963165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 3964165648Spiso break; 3965165648Spiso case TOK_SAME_PORTS: 3966165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 3967165648Spiso break; 3968165648Spiso case TOK_UNREG_ONLY: 3969165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 3970165648Spiso break; 3971165648Spiso case TOK_RESET_ADDR: 3972165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3973165648Spiso break; 3974165648Spiso case TOK_ALIAS_REV: 3975165648Spiso n->mode |= PKT_ALIAS_REVERSE; 3976165648Spiso break; 3977165648Spiso case TOK_PROXY_ONLY: 3978165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 3979165648Spiso break; 3980165648Spiso /* 3981165648Spiso * All the setup_redir_* functions work directly in the final 3982165648Spiso * buffer, see above for details. 3983165648Spiso */ 3984165648Spiso case TOK_REDIR_ADDR: 3985165648Spiso case TOK_REDIR_PORT: 3986165648Spiso case TOK_REDIR_PROTO: 3987165648Spiso switch (tok) { 3988165648Spiso case TOK_REDIR_ADDR: 3989165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 3990165648Spiso break; 3991165648Spiso case TOK_REDIR_PORT: 3992165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 3993165648Spiso break; 3994165648Spiso case TOK_REDIR_PROTO: 3995165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 3996165648Spiso break; 3997165648Spiso } 3998165648Spiso n->redir_cnt++; 3999165648Spiso off += i; 4000165648Spiso len -= i; 4001165648Spiso break; 4002165648Spiso default: 4003165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 4004165648Spiso } 4005165648Spiso } 4006165648Spiso 4007165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 4008165648Spiso if (i) 4009165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 4010165648Spiso 4011165648Spiso /* After every modification, we show the resultant rule. */ 4012165648Spiso int _ac = 3; 4013165648Spiso char *_av[] = {"show", "config", id}; 4014165648Spiso show_nat(_ac, _av); 4015165648Spiso} 4016165648Spiso 4017165648Spisostatic void 401898943Sluigiconfig_pipe(int ac, char **av) 401998943Sluigi{ 4020117469Sluigi struct dn_pipe p; 402198943Sluigi int i; 402298943Sluigi char *end; 402398943Sluigi void *par = NULL; 402498943Sluigi 4025117469Sluigi memset(&p, 0, sizeof p); 402698943Sluigi 402798943Sluigi av++; ac--; 402898943Sluigi /* Pipe number */ 402998943Sluigi if (ac && isdigit(**av)) { 403098943Sluigi i = atoi(*av); av++; ac--; 403198943Sluigi if (do_pipe == 1) 4032117469Sluigi p.pipe_nr = i; 403398943Sluigi else 4034117469Sluigi p.fs.fs_nr = i; 403598943Sluigi } 403699475Sluigi while (ac > 0) { 403798943Sluigi double d; 403898943Sluigi int tok = match_token(dummynet_params, *av); 403998943Sluigi ac--; av++; 404098943Sluigi 404198943Sluigi switch(tok) { 4042101978Sluigi case TOK_NOERROR: 4043117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4044101978Sluigi break; 4045101978Sluigi 404698943Sluigi case TOK_PLR: 404798943Sluigi NEED1("plr needs argument 0..1\n"); 404898943Sluigi d = strtod(av[0], NULL); 404998943Sluigi if (d > 1) 405098943Sluigi d = 1; 405198943Sluigi else if (d < 0) 405298943Sluigi d = 0; 4053117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 405498943Sluigi ac--; av++; 405598943Sluigi break; 405698943Sluigi 405798943Sluigi case TOK_QUEUE: 405898943Sluigi NEED1("queue needs queue size\n"); 405998943Sluigi end = NULL; 4060117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 406198943Sluigi if (*end == 'K' || *end == 'k') { 4062117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4063117469Sluigi p.fs.qsize *= 1024; 4064140271Sbrooks } else if (*end == 'B' || 4065140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4066117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 406798943Sluigi } 406898943Sluigi ac--; av++; 406998943Sluigi break; 407098943Sluigi 407198943Sluigi case TOK_BUCKETS: 407298943Sluigi NEED1("buckets needs argument\n"); 4073117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 407498943Sluigi ac--; av++; 407598943Sluigi break; 407698943Sluigi 407798943Sluigi case TOK_MASK: 407898943Sluigi NEED1("mask needs mask specifier\n"); 407998943Sluigi /* 408098943Sluigi * per-flow queue, mask is dst_ip, dst_port, 408198943Sluigi * src_ip, src_port, proto measured in bits 408298943Sluigi */ 408398943Sluigi par = NULL; 408498943Sluigi 4085145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 408698943Sluigi end = NULL; 408798943Sluigi 408898943Sluigi while (ac >= 1) { 4089117328Sluigi uint32_t *p32 = NULL; 4090117328Sluigi uint16_t *p16 = NULL; 4091145246Sbrooks uint32_t *p20 = NULL; 4092145246Sbrooks struct in6_addr *pa6 = NULL; 4093145246Sbrooks uint32_t a; 409498943Sluigi 409598943Sluigi tok = match_token(dummynet_params, *av); 409698943Sluigi ac--; av++; 409798943Sluigi switch(tok) { 409898943Sluigi case TOK_ALL: 409998943Sluigi /* 410098943Sluigi * special case, all bits significant 410198943Sluigi */ 4102117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4103117469Sluigi p.fs.flow_mask.src_ip = ~0; 4104117469Sluigi p.fs.flow_mask.dst_port = ~0; 4105117469Sluigi p.fs.flow_mask.src_port = ~0; 4106117469Sluigi p.fs.flow_mask.proto = ~0; 4107145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4108145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4109145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4110117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 411198943Sluigi goto end_mask; 411298943Sluigi 411398943Sluigi case TOK_DSTIP: 4114117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 411598943Sluigi break; 411698943Sluigi 411798943Sluigi case TOK_SRCIP: 4118117469Sluigi p32 = &p.fs.flow_mask.src_ip; 411998943Sluigi break; 412098943Sluigi 4121145246Sbrooks case TOK_DSTIP6: 4122145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4123145246Sbrooks break; 4124145246Sbrooks 4125145246Sbrooks case TOK_SRCIP6: 4126145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4127145246Sbrooks break; 4128145246Sbrooks 4129145246Sbrooks case TOK_FLOWID: 4130145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4131145246Sbrooks break; 4132145246Sbrooks 413398943Sluigi case TOK_DSTPORT: 4134117469Sluigi p16 = &p.fs.flow_mask.dst_port; 413598943Sluigi break; 413698943Sluigi 413798943Sluigi case TOK_SRCPORT: 4138117469Sluigi p16 = &p.fs.flow_mask.src_port; 413998943Sluigi break; 414098943Sluigi 414198943Sluigi case TOK_PROTO: 414298943Sluigi break; 414398943Sluigi 414498943Sluigi default: 414598943Sluigi ac++; av--; /* backtrack */ 414698943Sluigi goto end_mask; 414798943Sluigi } 414898943Sluigi if (ac < 1) 414998943Sluigi errx(EX_USAGE, "mask: value missing"); 415098943Sluigi if (*av[0] == '/') { 415198943Sluigi a = strtoul(av[0]+1, &end, 0); 4152145246Sbrooks if (pa6 == NULL) 4153145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4154106505Smaxim } else 415599909Sluigi a = strtoul(av[0], &end, 0); 415698943Sluigi if (p32 != NULL) 415798943Sluigi *p32 = a; 415898943Sluigi else if (p16 != NULL) { 4159139821Sbrooks if (a > 0xFFFF) 416098943Sluigi errx(EX_DATAERR, 4161144687Sbrooks "port mask must be 16 bit"); 4162117328Sluigi *p16 = (uint16_t)a; 4163145246Sbrooks } else if (p20 != NULL) { 4164145246Sbrooks if (a > 0xfffff) 4165145246Sbrooks errx(EX_DATAERR, 4166145246Sbrooks "flow_id mask must be 20 bit"); 4167145246Sbrooks *p20 = (uint32_t)a; 4168145246Sbrooks } else if (pa6 != NULL) { 4169145246Sbrooks if (a < 0 || a > 128) 4170145246Sbrooks errx(EX_DATAERR, 4171145246Sbrooks "in6addr invalid mask len"); 4172145246Sbrooks else 4173145246Sbrooks n2mask(pa6, a); 417498943Sluigi } else { 4175139821Sbrooks if (a > 0xFF) 417698943Sluigi errx(EX_DATAERR, 4177144687Sbrooks "proto mask must be 8 bit"); 4178117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 417998943Sluigi } 418098943Sluigi if (a != 0) 4181117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 418298943Sluigi ac--; av++; 418398943Sluigi } /* end while, config masks */ 418498943Sluigiend_mask: 418598943Sluigi break; 418698943Sluigi 418798943Sluigi case TOK_RED: 418898943Sluigi case TOK_GRED: 418998943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4190117469Sluigi p.fs.flags_fs |= DN_IS_RED; 419198943Sluigi if (tok == TOK_GRED) 4192117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 419398943Sluigi /* 419498943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 419598943Sluigi */ 419698943Sluigi if ((end = strsep(&av[0], "/"))) { 419798943Sluigi double w_q = strtod(end, NULL); 419898943Sluigi if (w_q > 1 || w_q <= 0) 419998943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4200117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 420198943Sluigi } 420298943Sluigi if ((end = strsep(&av[0], "/"))) { 4203117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 420498943Sluigi if (*end == 'K' || *end == 'k') 4205117469Sluigi p.fs.min_th *= 1024; 420698943Sluigi } 420798943Sluigi if ((end = strsep(&av[0], "/"))) { 4208117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 420998943Sluigi if (*end == 'K' || *end == 'k') 4210117469Sluigi p.fs.max_th *= 1024; 421198943Sluigi } 421298943Sluigi if ((end = strsep(&av[0], "/"))) { 421398943Sluigi double max_p = strtod(end, NULL); 421498943Sluigi if (max_p > 1 || max_p <= 0) 421598943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4216117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 421798943Sluigi } 421898943Sluigi ac--; av++; 421998943Sluigi break; 422098943Sluigi 422198943Sluigi case TOK_DROPTAIL: 4222117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 422398943Sluigi break; 4224106505Smaxim 422598943Sluigi case TOK_BW: 422698943Sluigi NEED1("bw needs bandwidth or interface\n"); 422798943Sluigi if (do_pipe != 1) 422898943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 422998943Sluigi /* 423098943Sluigi * set clocking interface or bandwidth value 423198943Sluigi */ 423298943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4233117469Sluigi int l = sizeof(p.if_name)-1; 423498943Sluigi /* interface name */ 4235117469Sluigi strncpy(p.if_name, av[0], l); 4236117469Sluigi p.if_name[l] = '\0'; 4237117469Sluigi p.bandwidth = 0; 423898943Sluigi } else { 4239117469Sluigi p.if_name[0] = '\0'; 4240117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 424198943Sluigi if (*end == 'K' || *end == 'k') { 424298943Sluigi end++; 4243117469Sluigi p.bandwidth *= 1000; 424498943Sluigi } else if (*end == 'M') { 424598943Sluigi end++; 4246117469Sluigi p.bandwidth *= 1000000; 424798943Sluigi } 4248161550Sdwmalone if ((*end == 'B' && 4249161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4250140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4251117469Sluigi p.bandwidth *= 8; 4252117469Sluigi if (p.bandwidth < 0) 425398943Sluigi errx(EX_DATAERR, "bandwidth too large"); 425498943Sluigi } 425598943Sluigi ac--; av++; 425698943Sluigi break; 425798943Sluigi 425898943Sluigi case TOK_DELAY: 425998943Sluigi if (do_pipe != 1) 426098943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 426198943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4262117469Sluigi p.delay = strtoul(av[0], NULL, 0); 426398943Sluigi ac--; av++; 426498943Sluigi break; 426598943Sluigi 426698943Sluigi case TOK_WEIGHT: 426798943Sluigi if (do_pipe == 1) 426898943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 426998943Sluigi NEED1("weight needs argument 0..100\n"); 4270117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 427198943Sluigi ac--; av++; 427298943Sluigi break; 427398943Sluigi 427498943Sluigi case TOK_PIPE: 427598943Sluigi if (do_pipe == 1) 427698943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 427798943Sluigi NEED1("pipe needs pipe_number\n"); 4278117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 427998943Sluigi ac--; av++; 428098943Sluigi break; 428198943Sluigi 428298943Sluigi default: 4283124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 428498943Sluigi } 428598943Sluigi } 428698943Sluigi if (do_pipe == 1) { 4287117469Sluigi if (p.pipe_nr == 0) 428898943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4289117469Sluigi if (p.delay > 10000) 429098943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 429198943Sluigi } else { /* do_pipe == 2, queue */ 4292117469Sluigi if (p.fs.parent_nr == 0) 429398943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4294117469Sluigi if (p.fs.weight >100) 429598943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 429698943Sluigi } 4297117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4298117469Sluigi if (p.fs.qsize > 1024*1024) 429998943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 430098943Sluigi } else { 4301117469Sluigi if (p.fs.qsize > 100) 430298943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 430398943Sluigi } 4304117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 430598943Sluigi size_t len; 430698943Sluigi int lookup_depth, avg_pkt_size; 430798943Sluigi double s, idle, weight, w_q; 4308117469Sluigi struct clockinfo ck; 430998943Sluigi int t; 431098943Sluigi 4311117469Sluigi if (p.fs.min_th >= p.fs.max_th) 431298943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4313117469Sluigi p.fs.min_th, p.fs.max_th); 4314117469Sluigi if (p.fs.max_th == 0) 431598943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 431698943Sluigi 431798943Sluigi len = sizeof(int); 431898943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 431998943Sluigi &lookup_depth, &len, NULL, 0) == -1) 432098943Sluigi 432198943Sluigi errx(1, "sysctlbyname(\"%s\")", 432298943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 432398943Sluigi if (lookup_depth == 0) 432498943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 432598943Sluigi " must be greater than zero"); 432698943Sluigi 432798943Sluigi len = sizeof(int); 432898943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 432998943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 433098943Sluigi 433198943Sluigi errx(1, "sysctlbyname(\"%s\")", 433298943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 433398943Sluigi if (avg_pkt_size == 0) 433498943Sluigi errx(EX_DATAERR, 433598943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 433698943Sluigi " be greater than zero"); 433798943Sluigi 433898943Sluigi len = sizeof(struct clockinfo); 4339117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 434098943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 434198943Sluigi 434298943Sluigi /* 434398943Sluigi * Ticks needed for sending a medium-sized packet. 434498943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 434598943Sluigi * do not have bandwidth information, because that is stored 434698943Sluigi * in the parent pipe, and also we have multiple queues 434798943Sluigi * competing for it. So we set s=0, which is not very 434898943Sluigi * correct. But on the other hand, why do we want RED with 434998943Sluigi * WF2Q+ ? 435098943Sluigi */ 4351117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 435298943Sluigi s = 0; 435398943Sluigi else 4354117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 435598943Sluigi 435698943Sluigi /* 435798943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 435898943Sluigi * NOTA: (3/w_q) is approx the value x so that 435998943Sluigi * (1-w_q)^x < 10^-3. 436098943Sluigi */ 4361117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 436298943Sluigi idle = s * 3. / w_q; 4363117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4364117469Sluigi if (!p.fs.lookup_step) 4365117469Sluigi p.fs.lookup_step = 1; 436698943Sluigi weight = 1 - w_q; 4367117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 436898943Sluigi weight *= weight; 4369117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 437098943Sluigi } 4371117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 437298943Sluigi if (i) 437398943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 437498943Sluigi} 437598943Sluigi 437698943Sluigistatic void 4377169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 437898943Sluigi{ 437998943Sluigi int i, l; 4380169424Smaxim char *ap, *ptr, *optr; 4381169424Smaxim struct ether_addr *mac; 4382169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 438398943Sluigi 4384169424Smaxim if (strcmp(p, "any") == 0) { 4385169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4386169424Smaxim addr[i] = mask[i] = 0; 438798943Sluigi return; 4388169424Smaxim } 438998943Sluigi 4390169424Smaxim optr = ptr = strdup(p); 4391169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4392169424Smaxim l = strlen(ap); 4393169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4394169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4395169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4396169424Smaxim } else 4397169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4398169424Smaxim 4399169424Smaxim if (ptr != NULL) { /* we have mask? */ 4400169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4401169424Smaxim l = strtol(ptr, &ap, 10); 4402169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4403169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4404169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4405169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4406169424Smaxim } else { /* mask */ 4407169424Smaxim l = strlen(ptr); 4408169424Smaxim if (strspn(ptr, macset) != l || 4409169424Smaxim (mac = ether_aton(ptr)) == NULL) 4410169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4411169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 441298943Sluigi } 4413169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4414169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 441598943Sluigi mask[i] = 0xff; 441698943Sluigi } 4417169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 441898943Sluigi addr[i] &= mask[i]; 4419169424Smaxim 4420169424Smaxim free(optr); 442198943Sluigi} 442298943Sluigi 442398943Sluigi/* 442498943Sluigi * helper function, updates the pointer to cmd with the length 442598943Sluigi * of the current command, and also cleans up the first word of 442698943Sluigi * the new command in case it has been clobbered before. 442798943Sluigi */ 442898943Sluigistatic ipfw_insn * 442998943Sluiginext_cmd(ipfw_insn *cmd) 443098943Sluigi{ 443198943Sluigi cmd += F_LEN(cmd); 443298943Sluigi bzero(cmd, sizeof(*cmd)); 443398943Sluigi return cmd; 443498943Sluigi} 443598943Sluigi 443698943Sluigi/* 4437117469Sluigi * Takes arguments and copies them into a comment 4438117469Sluigi */ 4439117469Sluigistatic void 4440117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4441117469Sluigi{ 4442117469Sluigi int i, l; 4443117469Sluigi char *p = (char *)(cmd + 1); 4444117577Sluigi 4445117469Sluigi cmd->opcode = O_NOP; 4446117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4447117469Sluigi 4448117469Sluigi /* Compute length of comment string. */ 4449117469Sluigi for (i = 0, l = 0; i < ac; i++) 4450117469Sluigi l += strlen(av[i]) + 1; 4451117469Sluigi if (l == 0) 4452117469Sluigi return; 4453117469Sluigi if (l > 84) 4454117469Sluigi errx(EX_DATAERR, 4455117469Sluigi "comment too long (max 80 chars)"); 4456117469Sluigi l = 1 + (l+3)/4; 4457117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4458117469Sluigi for (i = 0; i < ac; i++) { 4459117469Sluigi strcpy(p, av[i]); 4460117469Sluigi p += strlen(av[i]); 4461117469Sluigi *p++ = ' '; 4462117469Sluigi } 4463117469Sluigi *(--p) = '\0'; 4464117469Sluigi} 4465117577Sluigi 4466117469Sluigi/* 446798943Sluigi * A function to fill simple commands of size 1. 446898943Sluigi * Existing flags are preserved. 446998943Sluigi */ 447098943Sluigistatic void 4471117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 447298943Sluigi{ 447398943Sluigi cmd->opcode = opcode; 447498943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 447598943Sluigi cmd->arg1 = arg; 447698943Sluigi} 447798943Sluigi 447898943Sluigi/* 447998943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 448098943Sluigi * two microinstructions, and returns the pointer to the last one. 448198943Sluigi */ 448298943Sluigistatic ipfw_insn * 448398943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 448498943Sluigi{ 4485102087Sluigi ipfw_insn_mac *mac; 448698943Sluigi 4487102087Sluigi if (ac < 2) 4488102098Sluigi errx(EX_DATAERR, "MAC dst src"); 448998943Sluigi 449098943Sluigi cmd->opcode = O_MACADDR2; 449198943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 449298943Sluigi 449398943Sluigi mac = (ipfw_insn_mac *)cmd; 4494101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4495169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4496169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4497102087Sluigi return cmd; 4498102087Sluigi} 449998943Sluigi 4500102087Sluigistatic ipfw_insn * 4501102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4502102087Sluigi{ 4503102087Sluigi if (ac < 1) 4504102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4505102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4506102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 450798943Sluigi cmd->opcode = O_MAC_TYPE; 4508102087Sluigi return cmd; 4509102087Sluigi } else 4510102087Sluigi return NULL; 4511102087Sluigi} 451298943Sluigi 4513102087Sluigistatic ipfw_insn * 4514152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4515102087Sluigi{ 4516102087Sluigi struct protoent *pe; 4517152923Sume char *ep; 4518152923Sume int proto; 4519102087Sluigi 4520156315Sume proto = strtol(av, &ep, 10); 4521156315Sume if (*ep != '\0' || proto <= 0) { 4522152923Sume if ((pe = getprotobyname(av)) == NULL) 4523152923Sume return NULL; 4524152923Sume proto = pe->p_proto; 4525152923Sume } 4526145246Sbrooks 4527152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4528152923Sume *protop = proto; 4529152923Sume return cmd; 4530152923Sume} 4531152923Sume 4532152923Sumestatic ipfw_insn * 4533152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4534152923Sume{ 4535152923Sume u_char proto = IPPROTO_IP; 4536152923Sume 4537156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4538146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4539152923Sume else if (strcmp(av, "ip4") == 0) 4540152923Sume /* explicit "just IPv4" rule */ 4541152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4542152923Sume else if (strcmp(av, "ip6") == 0) { 4543152923Sume /* explicit "just IPv6" rule */ 4544152923Sume proto = IPPROTO_IPV6; 4545152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4546152923Sume } else 4547152923Sume return add_proto0(cmd, av, protop); 4548152923Sume 4549152923Sume *protop = proto; 4550152923Sume return cmd; 4551152923Sume} 4552152923Sume 4553152923Sumestatic ipfw_insn * 4554152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4555152923Sume{ 4556152923Sume u_char proto = IPPROTO_IP; 4557152923Sume 4558152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4559152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4560146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4561146894Smlaier /* explicit "just IPv4" rule */ 4562146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4563146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4564146894Smlaier /* explicit "just IPv6" rule */ 4565152923Sume proto = IPPROTO_IPV6; 4566146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4567152923Sume } else 4568152923Sume return add_proto0(cmd, av, protop); 4569145246Sbrooks 4570152923Sume *protop = proto; 457198943Sluigi return cmd; 457298943Sluigi} 457398943Sluigi 4574102087Sluigistatic ipfw_insn * 4575102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4576102087Sluigi{ 4577102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4578102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4579102087Sluigi cmd->opcode = O_IP_SRC_SET; 4580130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4581130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4582102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4583102087Sluigi cmd->opcode = O_IP_SRC_ME; 4584102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4585102087Sluigi cmd->opcode = O_IP_SRC; 4586117328Sluigi else /* addr/mask */ 4587102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4588102087Sluigi return cmd; 4589102087Sluigi} 4590102087Sluigi 4591102087Sluigistatic ipfw_insn * 4592102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4593102087Sluigi{ 4594102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4595102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4596102087Sluigi ; 4597130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4598130281Sru ; 4599102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4600102087Sluigi cmd->opcode = O_IP_DST_ME; 4601102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4602102087Sluigi cmd->opcode = O_IP_DST; 4603117328Sluigi else /* addr/mask */ 4604102087Sluigi cmd->opcode = O_IP_DST_MASK; 4605102087Sluigi return cmd; 4606102087Sluigi} 4607102087Sluigi 4608102087Sluigistatic ipfw_insn * 4609102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4610102087Sluigi{ 4611140271Sbrooks if (_substrcmp(av, "any") == 0) { 4612102087Sluigi return NULL; 4613102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4614102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4615102087Sluigi cmd->opcode = opcode; 4616102087Sluigi return cmd; 4617102087Sluigi } 4618102087Sluigi return NULL; 4619102087Sluigi} 4620102087Sluigi 4621145246Sbrooksstatic ipfw_insn * 4622145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 4623145246Sbrooks{ 4624145246Sbrooks struct in6_addr a; 4625158553Smlaier char *host, *ch; 4626158553Smlaier ipfw_insn *ret = NULL; 4627145246Sbrooks 4628158553Smlaier if ((host = strdup(av)) == NULL) 4629158553Smlaier return NULL; 4630158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4631158553Smlaier *ch = '\0'; 4632158553Smlaier 4633145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4634158553Smlaier inet_pton(AF_INET6, host, &a)) 4635158553Smlaier ret = add_srcip6(cmd, av); 4636145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4637161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4638161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4639158553Smlaier ret = add_srcip(cmd, av); 4640161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4641158553Smlaier ret = cmd; 4642145246Sbrooks 4643158553Smlaier free(host); 4644158553Smlaier return ret; 4645145246Sbrooks} 4646145246Sbrooks 4647145246Sbrooksstatic ipfw_insn * 4648145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4649145246Sbrooks{ 4650145246Sbrooks struct in6_addr a; 4651158553Smlaier char *host, *ch; 4652158553Smlaier ipfw_insn *ret = NULL; 4653145246Sbrooks 4654158553Smlaier if ((host = strdup(av)) == NULL) 4655158553Smlaier return NULL; 4656158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4657158553Smlaier *ch = '\0'; 4658158553Smlaier 4659145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4660158553Smlaier inet_pton(AF_INET6, host, &a)) 4661158553Smlaier ret = add_dstip6(cmd, av); 4662145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4663161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4664161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4665158553Smlaier ret = add_dstip(cmd, av); 4666161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4667158553Smlaier ret = cmd; 4668145246Sbrooks 4669158553Smlaier free(host); 4670158553Smlaier return ret; 4671145246Sbrooks} 4672145246Sbrooks 467398943Sluigi/* 467498943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 467598943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 467698943Sluigi * into the actual rule. 467798943Sluigi * 4678136071Sgreen * The syntax for a rule starts with the action, followed by 4679136071Sgreen * optional action parameters, and the various match patterns. 4680108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 468198943Sluigi * (generated if the rule includes a keep-state option), then the 4682136071Sgreen * various match patterns, log/altq actions, and the actual action. 4683106505Smaxim * 468498943Sluigi */ 468598943Sluigistatic void 468698943Sluigiadd(int ac, char *av[]) 468798943Sluigi{ 468898943Sluigi /* 468998943Sluigi * rules are added into the 'rulebuf' and then copied in 469098943Sluigi * the correct order into the actual rule. 469198943Sluigi * Some things that need to go out of order (prob, action etc.) 469298943Sluigi * go into actbuf[]. 469398943Sluigi */ 4694117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 469598943Sluigi 4696117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4697102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 469898943Sluigi 469998943Sluigi struct ip_fw *rule; 470098943Sluigi 470198943Sluigi /* 470298943Sluigi * various flags used to record that we entered some fields. 470398943Sluigi */ 4704101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4705158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4706134475Smaxim size_t len; 470798943Sluigi 470898943Sluigi int i; 470998943Sluigi 471098943Sluigi int open_par = 0; /* open parenthesis ( */ 471198943Sluigi 471298943Sluigi /* proto is here because it is used to fetch ports */ 471398943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 471498943Sluigi 4715107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4716107289Sluigi 471798943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 471898943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 471998943Sluigi bzero(rulebuf, sizeof(rulebuf)); 472098943Sluigi 472198943Sluigi rule = (struct ip_fw *)rulebuf; 472298943Sluigi cmd = (ipfw_insn *)cmdbuf; 472398943Sluigi action = (ipfw_insn *)actbuf; 472498943Sluigi 472598943Sluigi av++; ac--; 472698943Sluigi 472798943Sluigi /* [rule N] -- Rule number optional */ 472898943Sluigi if (ac && isdigit(**av)) { 472998943Sluigi rule->rulenum = atoi(*av); 473098943Sluigi av++; 473198943Sluigi ac--; 473298943Sluigi } 473398943Sluigi 4734117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4735140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4736101628Sluigi int set = strtoul(av[1], NULL, 10); 4737117655Sluigi if (set < 0 || set > RESVD_SET) 4738101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4739101628Sluigi rule->set = set; 4740101628Sluigi av += 2; ac -= 2; 4741101628Sluigi } 4742101628Sluigi 474398943Sluigi /* [prob D] -- match probability, optional */ 4744140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4745107289Sluigi match_prob = strtod(av[1], NULL); 474698943Sluigi 4747107289Sluigi if (match_prob <= 0 || match_prob > 1) 474898943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 474998943Sluigi av += 2; ac -= 2; 475098943Sluigi } 475198943Sluigi 475298943Sluigi /* action -- mandatory */ 475398943Sluigi NEED1("missing action"); 475498943Sluigi i = match_token(rule_actions, *av); 475598943Sluigi ac--; av++; 475698943Sluigi action->len = 1; /* default */ 475798943Sluigi switch(i) { 475898943Sluigi case TOK_CHECKSTATE: 4759101116Sluigi have_state = action; 476098943Sluigi action->opcode = O_CHECK_STATE; 476198943Sluigi break; 476298943Sluigi 476398943Sluigi case TOK_ACCEPT: 476498943Sluigi action->opcode = O_ACCEPT; 476598943Sluigi break; 476698943Sluigi 476798943Sluigi case TOK_DENY: 476898943Sluigi action->opcode = O_DENY; 476999475Sluigi action->arg1 = 0; 477098943Sluigi break; 477198943Sluigi 477299475Sluigi case TOK_REJECT: 477399475Sluigi action->opcode = O_REJECT; 477499475Sluigi action->arg1 = ICMP_UNREACH_HOST; 477599475Sluigi break; 477699475Sluigi 477799475Sluigi case TOK_RESET: 477899475Sluigi action->opcode = O_REJECT; 477999475Sluigi action->arg1 = ICMP_REJECT_RST; 478099475Sluigi break; 478199475Sluigi 4782149020Sbz case TOK_RESET6: 4783149020Sbz action->opcode = O_UNREACH6; 4784149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4785149020Sbz break; 4786149020Sbz 478799475Sluigi case TOK_UNREACH: 478899475Sluigi action->opcode = O_REJECT; 478999475Sluigi NEED1("missing reject code"); 479099475Sluigi fill_reject_code(&action->arg1, *av); 479199475Sluigi ac--; av++; 479299475Sluigi break; 479399475Sluigi 4794149020Sbz case TOK_UNREACH6: 4795149020Sbz action->opcode = O_UNREACH6; 4796149020Sbz NEED1("missing unreach code"); 4797149020Sbz fill_unreach6_code(&action->arg1, *av); 4798149020Sbz ac--; av++; 4799149020Sbz break; 4800149020Sbz 480198943Sluigi case TOK_COUNT: 480298943Sluigi action->opcode = O_COUNT; 480398943Sluigi break; 480498943Sluigi 480598943Sluigi case TOK_QUEUE: 4806153374Sglebius action->opcode = O_QUEUE; 4807153374Sglebius goto chkarg; 480898943Sluigi case TOK_PIPE: 4809153374Sglebius action->opcode = O_PIPE; 4810153374Sglebius goto chkarg; 481198943Sluigi case TOK_SKIPTO: 4812153374Sglebius action->opcode = O_SKIPTO; 4813153374Sglebius goto chkarg; 4814153374Sglebius case TOK_NETGRAPH: 4815153374Sglebius action->opcode = O_NETGRAPH; 4816153374Sglebius goto chkarg; 4817153374Sglebius case TOK_NGTEE: 4818153374Sglebius action->opcode = O_NGTEE; 4819153374Sglebius goto chkarg; 482098943Sluigi case TOK_DIVERT: 4821153374Sglebius action->opcode = O_DIVERT; 4822153374Sglebius goto chkarg; 482398943Sluigi case TOK_TEE: 4824153374Sglebius action->opcode = O_TEE; 4825153374Sglebiuschkarg: 4826153374Sglebius if (!ac) 4827153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4828153374Sglebius if (isdigit(**av)) { 4829153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4830153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4831153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4832153374Sglebius *(av - 1)); 4833153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 4834153374Sglebius action->arg1 = IP_FW_TABLEARG; 4835153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 483698943Sluigi struct servent *s; 483798943Sluigi setservent(1); 483898943Sluigi s = getservbyname(av[0], "divert"); 483998943Sluigi if (s != NULL) 484098943Sluigi action->arg1 = ntohs(s->s_port); 484198943Sluigi else 484298943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4843153374Sglebius } else 4844153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 484598943Sluigi ac--; av++; 484698943Sluigi break; 484798943Sluigi 484898943Sluigi case TOK_FORWARD: { 484998943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 485098943Sluigi char *s, *end; 485198943Sluigi 485298943Sluigi NEED1("missing forward address[:port]"); 485398943Sluigi 485498943Sluigi action->opcode = O_FORWARD_IP; 485598943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 485698943Sluigi 485798943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 485898943Sluigi p->sa.sin_family = AF_INET; 485998943Sluigi p->sa.sin_port = 0; 486098943Sluigi /* 486198943Sluigi * locate the address-port separator (':' or ',') 486298943Sluigi */ 486398943Sluigi s = strchr(*av, ':'); 486498943Sluigi if (s == NULL) 486598943Sluigi s = strchr(*av, ','); 486698943Sluigi if (s != NULL) { 486798943Sluigi *(s++) = '\0'; 486898943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 486998943Sluigi if (s == end) 487098943Sluigi errx(EX_DATAERR, 487198943Sluigi "illegal forwarding port ``%s''", s); 4872103241Sluigi p->sa.sin_port = (u_short)i; 487398943Sluigi } 4874161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4875161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4876161456Sjulian else 4877161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 487898943Sluigi ac--; av++; 487998943Sluigi break; 4880161424Sjulian } 4881117469Sluigi case TOK_COMMENT: 4882117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4883117469Sluigi action->opcode = O_COUNT; 4884117469Sluigi ac++; av--; /* go back... */ 4885117469Sluigi break; 4886117469Sluigi 4887165648Spiso case TOK_NAT: 4888165648Spiso action->opcode = O_NAT; 4889165648Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4890165648Spiso NEED1("missing nat number"); 4891165648Spiso action->arg1 = strtoul(*av, NULL, 10); 4892165648Spiso ac--; av++; 4893165648Spiso break; 4894165648Spiso 489598943Sluigi default: 4896102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 489798943Sluigi } 489898943Sluigi action = next_cmd(action); 489998943Sluigi 490098943Sluigi /* 4901136071Sgreen * [altq queuename] -- altq tag, optional 490298943Sluigi * [log [logamount N]] -- log, optional 490398943Sluigi * 4904136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 490598943Sluigi * skipped in the copy section to the end of the buffer. 490698943Sluigi */ 4907136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4908136071Sgreen ac--; av++; 4909136071Sgreen switch (i) { 4910136071Sgreen case TOK_LOG: 4911136071Sgreen { 4912136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4913136071Sgreen int l; 491498943Sluigi 4915136071Sgreen if (have_log) 4916136071Sgreen errx(EX_DATAERR, 4917136071Sgreen "log cannot be specified more than once"); 4918136071Sgreen have_log = (ipfw_insn *)c; 4919136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 4920136071Sgreen cmd->opcode = O_LOG; 4921140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 4922136071Sgreen ac--; av++; 4923136071Sgreen NEED1("logamount requires argument"); 4924136071Sgreen l = atoi(*av); 4925136071Sgreen if (l < 0) 4926136071Sgreen errx(EX_DATAERR, 4927136071Sgreen "logamount must be positive"); 4928136071Sgreen c->max_log = l; 4929136071Sgreen ac--; av++; 4930136071Sgreen } else { 4931136071Sgreen len = sizeof(c->max_log); 4932136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 4933136071Sgreen &c->max_log, &len, NULL, 0) == -1) 4934136071Sgreen errx(1, "sysctlbyname(\"%s\")", 4935136071Sgreen "net.inet.ip.fw.verbose_limit"); 4936136071Sgreen } 4937136071Sgreen } 4938136071Sgreen break; 4939136071Sgreen 4940136071Sgreen case TOK_ALTQ: 4941136071Sgreen { 4942136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4943136071Sgreen 4944136071Sgreen NEED1("missing altq queue name"); 4945136071Sgreen if (have_altq) 4946136071Sgreen errx(EX_DATAERR, 4947136071Sgreen "altq cannot be specified more than once"); 4948136071Sgreen have_altq = (ipfw_insn *)a; 4949136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4950136071Sgreen cmd->opcode = O_ALTQ; 4951136071Sgreen fill_altq_qid(&a->qid, *av); 495298943Sluigi ac--; av++; 4953136071Sgreen } 4954136071Sgreen break; 4955136071Sgreen 4956158879Soleg case TOK_TAG: 4957159636Soleg case TOK_UNTAG: { 4958159636Soleg uint16_t tag; 4959159636Soleg 4960158879Soleg if (have_tag) 4961159636Soleg errx(EX_USAGE, "tag and untag cannot be " 4962159636Soleg "specified more than once"); 4963159636Soleg GET_UINT_ARG(tag, 1, 65534, i, rule_action_params); 4964158879Soleg have_tag = cmd; 4965159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 4966158879Soleg ac--; av++; 4967158879Soleg break; 4968159636Soleg } 4969158879Soleg 4970136071Sgreen default: 4971136071Sgreen abort(); 497298943Sluigi } 497398943Sluigi cmd = next_cmd(cmd); 497498943Sluigi } 497598943Sluigi 4976101116Sluigi if (have_state) /* must be a check-state, we are done */ 497798943Sluigi goto done; 497898943Sluigi 497998943Sluigi#define OR_START(target) \ 498098943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 498198943Sluigi if (open_par) \ 498298943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 4983101641Sluigi prev = NULL; \ 498498943Sluigi open_par = 1; \ 498598943Sluigi if ( (av[0])[1] == '\0') { \ 498698943Sluigi ac--; av++; \ 498798943Sluigi } else \ 498898943Sluigi (*av)++; \ 498998943Sluigi } \ 499098943Sluigi target: \ 499198943Sluigi 499298943Sluigi 499398943Sluigi#define CLOSE_PAR \ 499498943Sluigi if (open_par) { \ 499598943Sluigi if (ac && ( \ 4996140271Sbrooks strcmp(*av, ")") == 0 || \ 4997140271Sbrooks strcmp(*av, "}") == 0)) { \ 4998101641Sluigi prev = NULL; \ 499998943Sluigi open_par = 0; \ 500098943Sluigi ac--; av++; \ 500198943Sluigi } else \ 500298943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 500398943Sluigi } 5004106505Smaxim 500598943Sluigi#define NOT_BLOCK \ 5006140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 500798943Sluigi if (cmd->len & F_NOT) \ 500898943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 500998943Sluigi cmd->len |= F_NOT; \ 501098943Sluigi ac--; av++; \ 501198943Sluigi } 501298943Sluigi 501398943Sluigi#define OR_BLOCK(target) \ 5014140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 501598943Sluigi if (prev == NULL || open_par == 0) \ 501698943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 501798943Sluigi prev->len |= F_OR; \ 501898943Sluigi ac--; av++; \ 501998943Sluigi goto target; \ 502098943Sluigi } \ 502198943Sluigi CLOSE_PAR; 502298943Sluigi 5023102087Sluigi first_cmd = cmd; 5024102098Sluigi 5025102098Sluigi#if 0 502698943Sluigi /* 5027102087Sluigi * MAC addresses, optional. 5028102087Sluigi * If we have this, we skip the part "proto from src to dst" 5029102087Sluigi * and jump straight to the option parsing. 5030102087Sluigi */ 5031102087Sluigi NOT_BLOCK; 5032102087Sluigi NEED1("missing protocol"); 5033140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5034140271Sbrooks _substrcmp(*av, "mac") == 0) { 5035102087Sluigi ac--; av++; /* the "MAC" keyword */ 5036102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5037102087Sluigi cmd = next_cmd(cmd); 5038102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5039102087Sluigi NOT_BLOCK; 5040102087Sluigi NEED1("missing mac type"); 5041102087Sluigi if (add_mactype(cmd, ac, av[0])) 5042102087Sluigi cmd = next_cmd(cmd); 5043102087Sluigi ac--; av++; /* any or mac-type */ 5044102087Sluigi goto read_options; 5045102087Sluigi } 5046102098Sluigi#endif 5047102087Sluigi 5048102087Sluigi /* 504998943Sluigi * protocol, mandatory 505098943Sluigi */ 505198943Sluigi OR_START(get_proto); 505298943Sluigi NOT_BLOCK; 505398943Sluigi NEED1("missing protocol"); 5054152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5055102087Sluigi av++; ac--; 5056147105Smlaier if (F_LEN(cmd) != 0) { 5057102087Sluigi prev = cmd; 5058102087Sluigi cmd = next_cmd(cmd); 5059102087Sluigi } 5060102098Sluigi } else if (first_cmd != cmd) { 5061116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5062102098Sluigi } else 5063102098Sluigi goto read_options; 506498943Sluigi OR_BLOCK(get_proto); 506598943Sluigi 506698943Sluigi /* 5067102087Sluigi * "from", mandatory 506898943Sluigi */ 5069140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 507098943Sluigi errx(EX_USAGE, "missing ``from''"); 507198943Sluigi ac--; av++; 507298943Sluigi 507398943Sluigi /* 507498943Sluigi * source IP, mandatory 507598943Sluigi */ 507698943Sluigi OR_START(source_ip); 507798943Sluigi NOT_BLOCK; /* optional "not" */ 507898943Sluigi NEED1("missing source address"); 5079145246Sbrooks if (add_src(cmd, *av, proto)) { 5080102087Sluigi ac--; av++; 5081102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5082102087Sluigi prev = cmd; 5083102087Sluigi cmd = next_cmd(cmd); 5084102087Sluigi } 5085145246Sbrooks } else 5086145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 508798943Sluigi OR_BLOCK(source_ip); 508898943Sluigi 508998943Sluigi /* 509098943Sluigi * source ports, optional 509198943Sluigi */ 509298943Sluigi NOT_BLOCK; /* optional "not" */ 5093101641Sluigi if (ac) { 5094140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5095102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5096102087Sluigi ac--; av++; 5097102087Sluigi if (F_LEN(cmd) != 0) 5098102087Sluigi cmd = next_cmd(cmd); 5099101641Sluigi } 510098943Sluigi } 510198943Sluigi 510298943Sluigi /* 5103102087Sluigi * "to", mandatory 510498943Sluigi */ 5105140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 510698943Sluigi errx(EX_USAGE, "missing ``to''"); 510798943Sluigi av++; ac--; 510898943Sluigi 510998943Sluigi /* 511098943Sluigi * destination, mandatory 511198943Sluigi */ 511298943Sluigi OR_START(dest_ip); 511398943Sluigi NOT_BLOCK; /* optional "not" */ 511498943Sluigi NEED1("missing dst address"); 5115145246Sbrooks if (add_dst(cmd, *av, proto)) { 5116102087Sluigi ac--; av++; 5117102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5118102087Sluigi prev = cmd; 5119102087Sluigi cmd = next_cmd(cmd); 5120102087Sluigi } 5121145246Sbrooks } else 5122145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 512398943Sluigi OR_BLOCK(dest_ip); 512498943Sluigi 512598943Sluigi /* 512698943Sluigi * dest. ports, optional 512798943Sluigi */ 512898943Sluigi NOT_BLOCK; /* optional "not" */ 5129101641Sluigi if (ac) { 5130140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5131102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5132102087Sluigi ac--; av++; 5133102087Sluigi if (F_LEN(cmd) != 0) 5134102087Sluigi cmd = next_cmd(cmd); 5135101641Sluigi } 513698943Sluigi } 513798943Sluigi 513898943Sluigiread_options: 5139102087Sluigi if (ac && first_cmd == cmd) { 5140102087Sluigi /* 5141102087Sluigi * nothing specified so far, store in the rule to ease 5142102087Sluigi * printout later. 5143102087Sluigi */ 5144102087Sluigi rule->_pad = 1; 5145102087Sluigi } 514698943Sluigi prev = NULL; 514798943Sluigi while (ac) { 5148101641Sluigi char *s; 5149101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 515098943Sluigi 5151101641Sluigi s = *av; 5152101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5153101641Sluigi 515498943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 515598943Sluigi if (cmd->len & F_NOT) 515698943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 515798943Sluigi cmd->len = F_NOT; 515898943Sluigi s++; 515998943Sluigi } 516098943Sluigi i = match_token(rule_options, s); 516198943Sluigi ac--; av++; 516298943Sluigi switch(i) { 516398943Sluigi case TOK_NOT: 516498943Sluigi if (cmd->len & F_NOT) 516598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 516698943Sluigi cmd->len = F_NOT; 516798943Sluigi break; 516898943Sluigi 516998943Sluigi case TOK_OR: 5170101641Sluigi if (open_par == 0 || prev == NULL) 517198943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 517298943Sluigi prev->len |= F_OR; 517398943Sluigi break; 5174101641Sluigi 5175101641Sluigi case TOK_STARTBRACE: 5176101641Sluigi if (open_par) 5177101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5178101641Sluigi open_par = 1; 5179101641Sluigi break; 5180101641Sluigi 5181101641Sluigi case TOK_ENDBRACE: 5182101641Sluigi if (!open_par) 5183101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5184101641Sluigi open_par = 0; 5185102087Sluigi prev = NULL; 5186101641Sluigi break; 5187101641Sluigi 518898943Sluigi case TOK_IN: 518998943Sluigi fill_cmd(cmd, O_IN, 0, 0); 519098943Sluigi break; 519198943Sluigi 519298943Sluigi case TOK_OUT: 519398943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 519498943Sluigi fill_cmd(cmd, O_IN, 0, 0); 519598943Sluigi break; 519698943Sluigi 5197136073Sgreen case TOK_DIVERTED: 5198136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5199136073Sgreen break; 5200136073Sgreen 5201136073Sgreen case TOK_DIVERTEDLOOPBACK: 5202136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5203136073Sgreen break; 5204136073Sgreen 5205136073Sgreen case TOK_DIVERTEDOUTPUT: 5206136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5207136073Sgreen break; 5208136073Sgreen 520998943Sluigi case TOK_FRAG: 521098943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 521198943Sluigi break; 521298943Sluigi 521398943Sluigi case TOK_LAYER2: 521498943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 521598943Sluigi break; 521698943Sluigi 521798943Sluigi case TOK_XMIT: 521898943Sluigi case TOK_RECV: 521998943Sluigi case TOK_VIA: 522098943Sluigi NEED1("recv, xmit, via require interface name" 522198943Sluigi " or address"); 522298943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 522398943Sluigi ac--; av++; 522498943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 522598943Sluigi break; 522698943Sluigi if (i == TOK_XMIT) 522798943Sluigi cmd->opcode = O_XMIT; 522898943Sluigi else if (i == TOK_RECV) 522998943Sluigi cmd->opcode = O_RECV; 523098943Sluigi else if (i == TOK_VIA) 523198943Sluigi cmd->opcode = O_VIA; 523298943Sluigi break; 523398943Sluigi 523499475Sluigi case TOK_ICMPTYPES: 523599475Sluigi NEED1("icmptypes requires list of types"); 523699475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 523799475Sluigi av++; ac--; 523899475Sluigi break; 5239145246Sbrooks 5240145246Sbrooks case TOK_ICMP6TYPES: 5241145246Sbrooks NEED1("icmptypes requires list of types"); 5242145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5243145246Sbrooks av++; ac--; 5244145246Sbrooks break; 524599475Sluigi 524698943Sluigi case TOK_IPTTL: 524798943Sluigi NEED1("ipttl requires TTL"); 5248116690Sluigi if (strpbrk(*av, "-,")) { 5249116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5250116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5251116690Sluigi } else 5252116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 525398943Sluigi ac--; av++; 525498943Sluigi break; 525598943Sluigi 525698943Sluigi case TOK_IPID: 5257116690Sluigi NEED1("ipid requires id"); 5258116690Sluigi if (strpbrk(*av, "-,")) { 5259116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5260116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5261116690Sluigi } else 5262116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 526398943Sluigi ac--; av++; 526498943Sluigi break; 526598943Sluigi 526698943Sluigi case TOK_IPLEN: 526798943Sluigi NEED1("iplen requires length"); 5268116690Sluigi if (strpbrk(*av, "-,")) { 5269116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5270116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5271116690Sluigi } else 5272116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 527398943Sluigi ac--; av++; 527498943Sluigi break; 527598943Sluigi 527698943Sluigi case TOK_IPVER: 527798943Sluigi NEED1("ipver requires version"); 527898943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 527998943Sluigi ac--; av++; 528098943Sluigi break; 528198943Sluigi 528299475Sluigi case TOK_IPPRECEDENCE: 528399475Sluigi NEED1("ipprecedence requires value"); 528499475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 528599475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 528699475Sluigi ac--; av++; 528799475Sluigi break; 528899475Sluigi 528998943Sluigi case TOK_IPOPTS: 529098943Sluigi NEED1("missing argument for ipoptions"); 5291101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 529298943Sluigi ac--; av++; 529398943Sluigi break; 529498943Sluigi 529599475Sluigi case TOK_IPTOS: 529699475Sluigi NEED1("missing argument for iptos"); 5297101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 529899475Sluigi ac--; av++; 529999475Sluigi break; 530099475Sluigi 530198943Sluigi case TOK_UID: 530298943Sluigi NEED1("uid requires argument"); 530398943Sluigi { 530498943Sluigi char *end; 530598943Sluigi uid_t uid; 530698943Sluigi struct passwd *pwd; 530798943Sluigi 530898943Sluigi cmd->opcode = O_UID; 530998943Sluigi uid = strtoul(*av, &end, 0); 531098943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 531198943Sluigi if (pwd == NULL) 531298943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5313106504Smaxim cmd32->d[0] = pwd->pw_uid; 5314135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 531598943Sluigi ac--; av++; 531698943Sluigi } 531798943Sluigi break; 531898943Sluigi 531998943Sluigi case TOK_GID: 532098943Sluigi NEED1("gid requires argument"); 532198943Sluigi { 532298943Sluigi char *end; 532398943Sluigi gid_t gid; 532498943Sluigi struct group *grp; 532598943Sluigi 532698943Sluigi cmd->opcode = O_GID; 532798943Sluigi gid = strtoul(*av, &end, 0); 532898943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 532998943Sluigi if (grp == NULL) 533098943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5331106504Smaxim cmd32->d[0] = grp->gr_gid; 5332135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 533398943Sluigi ac--; av++; 533498943Sluigi } 533598943Sluigi break; 533698943Sluigi 5337133600Scsjp case TOK_JAIL: 5338133600Scsjp NEED1("jail requires argument"); 5339133600Scsjp { 5340133600Scsjp char *end; 5341133600Scsjp int jid; 5342133600Scsjp 5343133600Scsjp cmd->opcode = O_JAIL; 5344133600Scsjp jid = (int)strtol(*av, &end, 0); 5345133600Scsjp if (jid < 0 || *end != '\0') 5346133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5347135554Scsjp cmd32->d[0] = (uint32_t)jid; 5348135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5349133600Scsjp ac--; av++; 5350133600Scsjp } 5351133600Scsjp break; 5352133600Scsjp 535398943Sluigi case TOK_ESTAB: 535498943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 535598943Sluigi break; 535698943Sluigi 535798943Sluigi case TOK_SETUP: 535898943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 535998943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 536098943Sluigi break; 536198943Sluigi 5362136075Sgreen case TOK_TCPDATALEN: 5363136075Sgreen NEED1("tcpdatalen requires length"); 5364136075Sgreen if (strpbrk(*av, "-,")) { 5365136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5366136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5367136075Sgreen } else 5368136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5369136075Sgreen strtoul(*av, NULL, 0)); 5370136075Sgreen ac--; av++; 5371136075Sgreen break; 5372136075Sgreen 537398943Sluigi case TOK_TCPOPTS: 537498943Sluigi NEED1("missing argument for tcpoptions"); 537598943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 537698943Sluigi ac--; av++; 537798943Sluigi break; 537898943Sluigi 537998943Sluigi case TOK_TCPSEQ: 538098943Sluigi case TOK_TCPACK: 538198943Sluigi NEED1("tcpseq/tcpack requires argument"); 538298943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 538398943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 538498943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 538598943Sluigi ac--; av++; 538698943Sluigi break; 538798943Sluigi 538898943Sluigi case TOK_TCPWIN: 538998943Sluigi NEED1("tcpwin requires length"); 539098943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 539198943Sluigi htons(strtoul(*av, NULL, 0))); 539298943Sluigi ac--; av++; 539398943Sluigi break; 539498943Sluigi 539598943Sluigi case TOK_TCPFLAGS: 539698943Sluigi NEED1("missing argument for tcpflags"); 539798943Sluigi cmd->opcode = O_TCPFLAGS; 539898943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 539998943Sluigi ac--; av++; 540098943Sluigi break; 540198943Sluigi 540298943Sluigi case TOK_KEEPSTATE: 5403101641Sluigi if (open_par) 5404101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5405101641Sluigi "of an or block"); 540699909Sluigi if (have_state) 5407101116Sluigi errx(EX_USAGE, "only one of keep-state " 540899909Sluigi "and limit is allowed"); 5409101116Sluigi have_state = cmd; 541098943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 541198943Sluigi break; 541298943Sluigi 5413159636Soleg case TOK_LIMIT: { 5414159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5415159636Soleg int val; 5416159636Soleg 5417101641Sluigi if (open_par) 5418159636Soleg errx(EX_USAGE, 5419159636Soleg "limit cannot be part of an or block"); 542099909Sluigi if (have_state) 5421168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5422159636Soleg "limit is allowed"); 5423101116Sluigi have_state = cmd; 542498943Sluigi 542598943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 542698943Sluigi cmd->opcode = O_LIMIT; 5427159636Soleg c->limit_mask = c->conn_limit = 0; 542898943Sluigi 5429159636Soleg while (ac > 0) { 5430159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 543198943Sluigi break; 543298943Sluigi c->limit_mask |= val; 543398943Sluigi ac--; av++; 543498943Sluigi } 5435159636Soleg 543698943Sluigi if (c->limit_mask == 0) 5437159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5438159636Soleg 5439159636Soleg GET_UINT_ARG(c->conn_limit, 1, 65534, TOK_LIMIT, 5440159636Soleg rule_options); 5441159636Soleg 544298943Sluigi ac--; av++; 544398943Sluigi break; 5444159636Soleg } 544598943Sluigi 5446102087Sluigi case TOK_PROTO: 5447102087Sluigi NEED1("missing protocol"); 5448145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5449102087Sluigi ac--; av++; 5450102098Sluigi } else 5451116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5452116438Smaxim *av); 5453102087Sluigi break; 5454106505Smaxim 5455102087Sluigi case TOK_SRCIP: 5456102087Sluigi NEED1("missing source IP"); 5457102087Sluigi if (add_srcip(cmd, *av)) { 5458102087Sluigi ac--; av++; 5459102087Sluigi } 5460102087Sluigi break; 5461102087Sluigi 5462102087Sluigi case TOK_DSTIP: 5463102087Sluigi NEED1("missing destination IP"); 5464102087Sluigi if (add_dstip(cmd, *av)) { 5465102087Sluigi ac--; av++; 5466102087Sluigi } 5467102087Sluigi break; 5468102087Sluigi 5469145246Sbrooks case TOK_SRCIP6: 5470145246Sbrooks NEED1("missing source IP6"); 5471145246Sbrooks if (add_srcip6(cmd, *av)) { 5472145246Sbrooks ac--; av++; 5473145246Sbrooks } 5474145246Sbrooks break; 5475145246Sbrooks 5476145246Sbrooks case TOK_DSTIP6: 5477145246Sbrooks NEED1("missing destination IP6"); 5478145246Sbrooks if (add_dstip6(cmd, *av)) { 5479145246Sbrooks ac--; av++; 5480145246Sbrooks } 5481145246Sbrooks break; 5482145246Sbrooks 5483102087Sluigi case TOK_SRCPORT: 5484102087Sluigi NEED1("missing source port"); 5485140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5486102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5487102087Sluigi ac--; av++; 5488102087Sluigi } else 5489102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5490102087Sluigi break; 5491102087Sluigi 5492102087Sluigi case TOK_DSTPORT: 5493102087Sluigi NEED1("missing destination port"); 5494140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5495102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5496102087Sluigi ac--; av++; 5497102087Sluigi } else 5498102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5499102087Sluigi *av); 5500102087Sluigi break; 5501102087Sluigi 5502102087Sluigi case TOK_MAC: 5503102087Sluigi if (add_mac(cmd, ac, av)) { 5504102087Sluigi ac -= 2; av += 2; 5505102087Sluigi } 5506102087Sluigi break; 5507102087Sluigi 5508102087Sluigi case TOK_MACTYPE: 5509102087Sluigi NEED1("missing mac type"); 5510102087Sluigi if (!add_mactype(cmd, ac, *av)) 5511116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5512102087Sluigi ac--; av++; 5513102087Sluigi break; 5514102087Sluigi 5515112250Scjc case TOK_VERREVPATH: 5516112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5517112250Scjc break; 5518116919Sluigi 5519128575Sandre case TOK_VERSRCREACH: 5520128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5521128575Sandre break; 5522128575Sandre 5523133387Sandre case TOK_ANTISPOOF: 5524133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5525133387Sandre break; 5526133387Sandre 5527117241Sluigi case TOK_IPSEC: 5528117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5529117241Sluigi break; 5530117241Sluigi 5531145246Sbrooks case TOK_IPV6: 5532145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5533145246Sbrooks break; 5534145246Sbrooks 5535146894Smlaier case TOK_IPV4: 5536146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5537146894Smlaier break; 5538146894Smlaier 5539145246Sbrooks case TOK_EXT6HDR: 5540145246Sbrooks fill_ext6hdr( cmd, *av ); 5541145246Sbrooks ac--; av++; 5542145246Sbrooks break; 5543145246Sbrooks 5544145246Sbrooks case TOK_FLOWID: 5545145246Sbrooks if (proto != IPPROTO_IPV6 ) 5546145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5547145246Sbrooks "only for ipv6 protocol\n"); 5548145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5549145246Sbrooks ac--; av++; 5550145246Sbrooks break; 5551145246Sbrooks 5552117469Sluigi case TOK_COMMENT: 5553117469Sluigi fill_comment(cmd, ac, av); 5554117469Sluigi av += ac; 5555117469Sluigi ac = 0; 5556117469Sluigi break; 5557117469Sluigi 5558158879Soleg case TOK_TAGGED: 5559159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5560158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5561159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5562159636Soleg " list: %s", *av); 5563158879Soleg } 5564159636Soleg else { 5565159636Soleg uint16_t tag; 5566159636Soleg 5567159636Soleg GET_UINT_ARG(tag, 1, 65534, TOK_TAGGED, 5568159636Soleg rule_options); 5569159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5570159636Soleg } 5571158879Soleg ac--; av++; 5572158879Soleg break; 5573158879Soleg 557498943Sluigi default: 557598943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 557698943Sluigi } 557798943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 557898943Sluigi prev = cmd; 557998943Sluigi cmd = next_cmd(cmd); 558098943Sluigi } 558198943Sluigi } 558298943Sluigi 558398943Sluigidone: 558498943Sluigi /* 558598943Sluigi * Now copy stuff into the rule. 558698943Sluigi * If we have a keep-state option, the first instruction 558798943Sluigi * must be a PROBE_STATE (which is generated here). 558898943Sluigi * If we have a LOG option, it was stored as the first command, 558998943Sluigi * and now must be moved to the top of the action part. 559098943Sluigi */ 559198943Sluigi dst = (ipfw_insn *)rule->cmd; 559298943Sluigi 559398943Sluigi /* 5594107289Sluigi * First thing to write into the command stream is the match probability. 5595107289Sluigi */ 5596107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5597107289Sluigi dst->opcode = O_PROB; 5598107289Sluigi dst->len = 2; 5599107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5600107289Sluigi dst += dst->len; 5601107289Sluigi } 5602107289Sluigi 5603107289Sluigi /* 560498943Sluigi * generate O_PROBE_STATE if necessary 560598943Sluigi */ 5606101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 560798943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 560898943Sluigi dst = next_cmd(dst); 560998943Sluigi } 5610158879Soleg 5611158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 561298943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 561398943Sluigi i = F_LEN(src); 561498943Sluigi 5615101116Sluigi switch (src->opcode) { 5616101116Sluigi case O_LOG: 5617101116Sluigi case O_KEEP_STATE: 5618101116Sluigi case O_LIMIT: 5619136071Sgreen case O_ALTQ: 5620158879Soleg case O_TAG: 5621101116Sluigi break; 5622101116Sluigi default: 5623117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 562498943Sluigi dst += i; 562598943Sluigi } 562698943Sluigi } 562798943Sluigi 562898943Sluigi /* 5629101116Sluigi * put back the have_state command as last opcode 5630101116Sluigi */ 5631101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5632101116Sluigi i = F_LEN(have_state); 5633117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5634101116Sluigi dst += i; 5635101116Sluigi } 5636101116Sluigi /* 563798943Sluigi * start action section 563898943Sluigi */ 563998943Sluigi rule->act_ofs = dst - rule->cmd; 564098943Sluigi 5641158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5642136071Sgreen if (have_log) { 5643136071Sgreen i = F_LEN(have_log); 5644136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 564598943Sluigi dst += i; 564698943Sluigi } 5647136071Sgreen if (have_altq) { 5648136071Sgreen i = F_LEN(have_altq); 5649136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5650136071Sgreen dst += i; 5651136071Sgreen } 5652158879Soleg if (have_tag) { 5653158879Soleg i = F_LEN(have_tag); 5654158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5655158879Soleg dst += i; 5656158879Soleg } 565798943Sluigi /* 565898943Sluigi * copy all other actions 565998943Sluigi */ 566098943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 566198943Sluigi i = F_LEN(src); 5662117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 566398943Sluigi dst += i; 566498943Sluigi } 566598943Sluigi 5666117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5667117469Sluigi i = (char *)dst - (char *)rule; 5668119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 566998943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 567098943Sluigi if (!do_quiet) 5671117469Sluigi show_ipfw(rule, 0, 0); 567298943Sluigi} 567398943Sluigi 567498943Sluigistatic void 5675117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 567698943Sluigi{ 567798943Sluigi int rulenum; 567898943Sluigi int failed = EX_OK; 5679117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 568098943Sluigi 568198943Sluigi av++; ac--; 568298943Sluigi 568398943Sluigi if (!ac) { 568498943Sluigi /* clear all entries */ 5685117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5686117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 568798943Sluigi if (!do_quiet) 5688117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5689117328Sluigi "Accounting cleared":"Logging counts reset"); 569098943Sluigi 569198943Sluigi return; 569298943Sluigi } 569398943Sluigi 569498943Sluigi while (ac) { 569598943Sluigi /* Rule number */ 569698943Sluigi if (isdigit(**av)) { 569798943Sluigi rulenum = atoi(*av); 569898943Sluigi av++; 569998943Sluigi ac--; 5700117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 5701117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5702117328Sluigi rulenum, name); 570398943Sluigi failed = EX_UNAVAILABLE; 570498943Sluigi } else if (!do_quiet) 5705117328Sluigi printf("Entry %d %s.\n", rulenum, 5706117328Sluigi optname == IP_FW_ZERO ? 5707117328Sluigi "cleared" : "logging count reset"); 570898943Sluigi } else { 570998943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 571098943Sluigi } 571198943Sluigi } 571298943Sluigi if (failed != EX_OK) 571398943Sluigi exit(failed); 571498943Sluigi} 571598943Sluigi 571698943Sluigistatic void 5717117544Sluigiflush(int force) 571898943Sluigi{ 571998943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 572098943Sluigi 5721117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 572298943Sluigi int c; 572398943Sluigi 572498943Sluigi printf("Are you sure? [yn] "); 572598943Sluigi fflush(stdout); 572698943Sluigi do { 572798943Sluigi c = toupper(getc(stdin)); 572898943Sluigi while (c != '\n' && getc(stdin) != '\n') 572998943Sluigi if (feof(stdin)) 573098943Sluigi return; /* and do not flush */ 573198943Sluigi } while (c != 'Y' && c != 'N'); 573298943Sluigi printf("\n"); 573398943Sluigi if (c == 'N') /* user said no */ 573498943Sluigi return; 573598943Sluigi } 5736117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 573798943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 573898943Sluigi do_pipe ? "DUMMYNET" : "FW"); 573998943Sluigi if (!do_quiet) 574098943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 574198943Sluigi} 574298943Sluigi 5743117469Sluigi/* 5744117544Sluigi * Free a the (locally allocated) copy of command line arguments. 5745117469Sluigi */ 5746117544Sluigistatic void 5747117544Sluigifree_args(int ac, char **av) 5748117544Sluigi{ 5749117544Sluigi int i; 5750117544Sluigi 5751117544Sluigi for (i=0; i < ac; i++) 5752117544Sluigi free(av[i]); 5753117544Sluigi free(av); 5754117544Sluigi} 5755117544Sluigi 5756117544Sluigi/* 5757130281Sru * This one handles all table-related commands 5758130281Sru * ipfw table N add addr[/masklen] [value] 5759130281Sru * ipfw table N delete addr[/masklen] 5760130281Sru * ipfw table N flush 5761130281Sru * ipfw table N list 5762130281Sru */ 5763130281Srustatic void 5764130281Srutable_handler(int ac, char *av[]) 5765130281Sru{ 5766130281Sru ipfw_table_entry ent; 5767130281Sru ipfw_table *tbl; 5768130281Sru int do_add; 5769130281Sru char *p; 5770130281Sru socklen_t l; 5771130281Sru uint32_t a; 5772130281Sru 5773130281Sru ac--; av++; 5774130281Sru if (ac && isdigit(**av)) { 5775130281Sru ent.tbl = atoi(*av); 5776130281Sru ac--; av++; 5777130281Sru } else 5778130281Sru errx(EX_USAGE, "table number required"); 5779130281Sru NEED1("table needs command"); 5780140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5781140271Sbrooks _substrcmp(*av, "delete") == 0) { 5782130281Sru do_add = **av == 'a'; 5783130281Sru ac--; av++; 5784130281Sru if (!ac) 5785130281Sru errx(EX_USAGE, "IP address required"); 5786130281Sru p = strchr(*av, '/'); 5787130281Sru if (p) { 5788130281Sru *p++ = '\0'; 5789130281Sru ent.masklen = atoi(p); 5790130281Sru if (ent.masklen > 32) 5791130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5792130281Sru } else 5793130281Sru ent.masklen = 32; 5794130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5795130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5796130281Sru ac--; av++; 5797161424Sjulian if (do_add && ac) { 5798161424Sjulian unsigned int tval; 5799161424Sjulian /* isdigit is a bit of a hack here.. */ 5800161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5801161424Sjulian ent.value = strtoul(*av, NULL, 0); 5802161424Sjulian } else { 5803161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5804161424Sjulian /* The value must be stored in host order * 5805161424Sjulian * so that the values < 65k can be distinguished */ 5806161424Sjulian ent.value = ntohl(tval); 5807161424Sjulian } else { 5808161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5809161424Sjulian } 5810161424Sjulian } 5811161424Sjulian } else 5812130281Sru ent.value = 0; 5813130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5814157335Sjulian &ent, sizeof(ent)) < 0) { 5815155639Sjulian /* If running silent, don't bomb out on these errors. */ 5816155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5817155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5818155639Sjulian do_add ? "ADD" : "DEL"); 5819155639Sjulian /* In silent mode, react to a failed add by deleting */ 5820157332Sjulian if (do_add) { 5821155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5822155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5823155639Sjulian &ent, sizeof(ent)) < 0) 5824155639Sjulian err(EX_OSERR, 5825155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5826157332Sjulian } 5827157335Sjulian } 5828140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5829130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 5830130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5831140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5832130281Sru a = ent.tbl; 5833130281Sru l = sizeof(a); 5834130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5835130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5836130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 5837130281Sru tbl = malloc(l); 5838130281Sru if (tbl == NULL) 5839130281Sru err(EX_OSERR, "malloc"); 5840130281Sru tbl->tbl = ent.tbl; 5841130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 5842130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 5843130281Sru for (a = 0; a < tbl->cnt; a++) { 5844161424Sjulian /* Heuristic to print it the right way */ 5845161456Sjulian /* values < 64k are printed as numbers */ 5846161424Sjulian unsigned int tval; 5847161424Sjulian tval = tbl->ent[a].value; 5848161424Sjulian if (tval > 0xffff) { 5849161424Sjulian char tbuf[128]; 5850161456Sjulian strncpy(tbuf, inet_ntoa(*(struct in_addr *) 5851161456Sjulian &tbl->ent[a].addr), 127); 5852161424Sjulian /* inet_ntoa expects host order */ 5853161424Sjulian tval = htonl(tval); 5854161456Sjulian printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 5855161456Sjulian inet_ntoa(*(struct in_addr *)&tval)); 5856161424Sjulian } else { 5857161424Sjulian printf("%s/%u %u\n", 5858161456Sjulian inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 5859161456Sjulian tbl->ent[a].masklen, tbl->ent[a].value); 5860161424Sjulian } 5861130281Sru } 5862130281Sru } else 5863130281Sru errx(EX_USAGE, "invalid table command %s", *av); 5864130281Sru} 5865130281Sru 5866165648Spisostatic void 5867165648Spisoshow_nat(int ac, char **av) { 5868165648Spiso struct cfg_nat *n; 5869165648Spiso struct cfg_redir *e; 5870165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 5871165648Spiso int nat_cnt, r; 5872165648Spiso uint8_t *data, *p; 5873165648Spiso char **lav, *endptr; 5874165648Spiso 5875165648Spiso do_rule = 0; 5876165648Spiso nalloc = 1024; 5877165648Spiso size = 0; 5878165648Spiso data = NULL; 5879165648Spiso ac--; av++; 5880165648Spiso 5881165648Spiso /* Parse parameters. */ 5882165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 5883165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 5884165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 5885165648Spiso continue; 5886165648Spiso } 5887165648Spiso /* Convert command line rule #. */ 5888165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 5889165648Spiso if (*endptr == '-') 5890165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 5891165648Spiso if (lrule == 0) 5892165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 5893165648Spiso do_rule = 1; 5894165648Spiso } 5895165648Spiso 5896165648Spiso nbytes = nalloc; 5897165648Spiso while (nbytes >= nalloc) { 5898165648Spiso nalloc = nalloc * 2; 5899165648Spiso nbytes = nalloc; 5900165648Spiso if ((data = realloc(data, nbytes)) == NULL) 5901165648Spiso err(EX_OSERR, "realloc"); 5902165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 5903165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 5904165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 5905165648Spiso } 5906165648Spiso if (nbytes == 0) 5907165648Spiso exit(0); 5908165648Spiso if (do_cfg) { 5909165648Spiso nat_cnt = *((int *)data); 5910165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 5911165648Spiso n = (struct cfg_nat *)&data[i]; 5912165648Spiso if (do_rule) { 5913165648Spiso if (!(frule <= n->id && lrule >= n->id)) 5914165648Spiso continue; 5915165648Spiso } 5916165648Spiso print_nat_config(&data[i]); 5917165648Spiso i += sizeof(struct cfg_nat); 5918165648Spiso e = (struct cfg_redir *)&data[i]; 5919165648Spiso if (e->mode == REDIR_ADDR || e->mode == REDIR_PORT || 5920165648Spiso e->mode == REDIR_PROTO) 5921165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 5922165648Spiso sizeof(struct cfg_spool); 5923165648Spiso } 5924165648Spiso } else { 5925165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 5926165648Spiso p = &data[i]; 5927165648Spiso if (p == data + nbytes) 5928165648Spiso break; 5929165648Spiso bcopy(p, &r, sizeof(int)); 5930165648Spiso if (do_rule) { 5931165648Spiso if (!(frule <= r && lrule >= r)) 5932165648Spiso continue; 5933165648Spiso } 5934165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 5935165648Spiso } 5936165648Spiso } 5937165648Spiso} 5938165648Spiso 5939130281Sru/* 5940117544Sluigi * Called with the arguments (excluding program name). 5941117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 5942117544Sluigi */ 594398943Sluigistatic int 5944117328Sluigiipfw_main(int oldac, char **oldav) 594598943Sluigi{ 5946117469Sluigi int ch, ac, save_ac; 5947117469Sluigi char **av, **save_av; 5948117469Sluigi int do_acct = 0; /* Show packet/byte count */ 5949117469Sluigi 5950117469Sluigi#define WHITESP " \t\f\v\n\r" 5951117544Sluigi if (oldac == 0) 5952117544Sluigi return 1; 5953117544Sluigi else if (oldac == 1) { 5954117328Sluigi /* 5955117328Sluigi * If we are called with a single string, try to split it into 5956117328Sluigi * arguments for subsequent parsing. 5957117328Sluigi * But first, remove spaces after a ',', by copying the string 5958117328Sluigi * in-place. 5959117328Sluigi */ 5960117469Sluigi char *arg = oldav[0]; /* The string... */ 5961117328Sluigi int l = strlen(arg); 5962117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 5963117328Sluigi int i, j; 5964117469Sluigi for (i = j = 0; i < l; i++) { 5965117469Sluigi if (arg[i] == '#') /* comment marker */ 5966117469Sluigi break; 5967117328Sluigi if (copy) { 5968117328Sluigi arg[j++] = arg[i]; 5969117469Sluigi copy = !index("," WHITESP, arg[i]); 5970117328Sluigi } else { 5971117469Sluigi copy = !index(WHITESP, arg[i]); 5972117328Sluigi if (copy) 5973117328Sluigi arg[j++] = arg[i]; 5974117328Sluigi } 5975117469Sluigi } 5976117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 5977117328Sluigi j--; 5978117328Sluigi l = j; /* the new argument length */ 5979117328Sluigi arg[j++] = '\0'; 5980117469Sluigi if (l == 0) /* empty string! */ 5981117544Sluigi return 1; 5982117328Sluigi 5983117328Sluigi /* 5984117328Sluigi * First, count number of arguments. Because of the previous 5985117469Sluigi * processing, this is just the number of blanks plus 1. 5986117328Sluigi */ 5987117469Sluigi for (i = 0, ac = 1; i < l; i++) 5988117469Sluigi if (index(WHITESP, arg[i]) != NULL) 5989117328Sluigi ac++; 5990117328Sluigi 5991117328Sluigi av = calloc(ac, sizeof(char *)); 5992117328Sluigi 5993117328Sluigi /* 5994117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 5995117328Sluigi * j is the initial character, i is the one past the end. 5996117328Sluigi */ 5997117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 5998117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 5999117328Sluigi if (i == l-1) 6000117328Sluigi i++; 6001117328Sluigi av[ac] = calloc(i-j+1, 1); 6002117328Sluigi bcopy(arg+j, av[ac], i-j); 6003117328Sluigi ac++; 6004117328Sluigi j = i + 1; 6005117328Sluigi } 6006117328Sluigi } else { 6007117328Sluigi /* 6008117328Sluigi * If an argument ends with ',' join with the next one. 6009117328Sluigi */ 6010117328Sluigi int first, i, l; 6011117328Sluigi 6012117328Sluigi av = calloc(oldac, sizeof(char *)); 6013117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 6014117328Sluigi char *arg = oldav[i]; 6015117328Sluigi int k = strlen(arg); 6016117328Sluigi 6017117328Sluigi l += k; 6018117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 6019117328Sluigi /* Time to copy. */ 6020117328Sluigi av[ac] = calloc(l+1, 1); 6021117328Sluigi for (l=0; first <= i; first++) { 6022117328Sluigi strcat(av[ac]+l, oldav[first]); 6023117328Sluigi l += strlen(oldav[first]); 6024117328Sluigi } 6025117328Sluigi ac++; 6026117328Sluigi l = 0; 6027117328Sluigi first = i+1; 6028117328Sluigi } 6029117328Sluigi } 6030117328Sluigi } 6031117328Sluigi 603298943Sluigi /* Set the force flag for non-interactive processes */ 6033123804Smaxim if (!do_force) 6034123804Smaxim do_force = !isatty(STDIN_FILENO); 603598943Sluigi 6036117469Sluigi /* Save arguments for final freeing of memory. */ 6037117469Sluigi save_ac = ac; 6038117469Sluigi save_av = av; 6039117469Sluigi 6040117469Sluigi optind = optreset = 0; 6041123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 604298943Sluigi switch (ch) { 604398943Sluigi case 'a': 604498943Sluigi do_acct = 1; 604598943Sluigi break; 6046117328Sluigi 6047123495Sluigi case 'b': 6048123495Sluigi comment_only = 1; 6049123495Sluigi do_compact = 1; 6050123495Sluigi break; 6051123495Sluigi 6052102098Sluigi case 'c': 6053102098Sluigi do_compact = 1; 6054102098Sluigi break; 6055117328Sluigi 605698943Sluigi case 'd': 605798943Sluigi do_dynamic = 1; 605898943Sluigi break; 6059117328Sluigi 606098943Sluigi case 'e': 606198943Sluigi do_expired = 1; 606298943Sluigi break; 6063117328Sluigi 606498943Sluigi case 'f': 606598943Sluigi do_force = 1; 606698943Sluigi break; 6067117328Sluigi 6068117328Sluigi case 'h': /* help */ 6069117544Sluigi free_args(save_ac, save_av); 6070117328Sluigi help(); 6071117328Sluigi break; /* NOTREACHED */ 6072117328Sluigi 6073117328Sluigi case 'n': 6074117328Sluigi test_only = 1; 6075117328Sluigi break; 6076117328Sluigi 607798943Sluigi case 'N': 607898943Sluigi do_resolv = 1; 607998943Sluigi break; 6080117328Sluigi 608198943Sluigi case 'q': 608298943Sluigi do_quiet = 1; 608398943Sluigi break; 6084117328Sluigi 6085117328Sluigi case 's': /* sort */ 6086117328Sluigi do_sort = atoi(optarg); 6087117328Sluigi break; 6088117328Sluigi 6089101628Sluigi case 'S': 6090101628Sluigi show_sets = 1; 6091101628Sluigi break; 6092117328Sluigi 609398943Sluigi case 't': 609498943Sluigi do_time = 1; 609598943Sluigi break; 6096117328Sluigi 6097117472Sluigi case 'T': 6098117472Sluigi do_time = 2; /* numeric timestamp */ 6099117472Sluigi break; 6100117472Sluigi 610198943Sluigi case 'v': /* verbose */ 6102117328Sluigi verbose = 1; 610398943Sluigi break; 6104117328Sluigi 610598943Sluigi default: 6106117544Sluigi free_args(save_ac, save_av); 6107117544Sluigi return 1; 610898943Sluigi } 610998943Sluigi 611098943Sluigi ac -= optind; 611198943Sluigi av += optind; 611298943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 611398943Sluigi 611498943Sluigi /* 6115117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 6116117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 6117117544Sluigi * In case, swap first and second argument to get the normal form. 6118117544Sluigi */ 6119117544Sluigi if (ac > 1 && isdigit(*av[0])) { 6120117544Sluigi char *p = av[0]; 6121117544Sluigi 6122117544Sluigi av[0] = av[1]; 6123117544Sluigi av[1] = p; 6124117544Sluigi } 6125117544Sluigi 6126117544Sluigi /* 6127165648Spiso * Optional: pipe, queue or nat. 612898943Sluigi */ 6129165648Spiso do_nat = 0; 6130117821Smaxim do_pipe = 0; 6131165648Spiso if (!strncmp(*av, "nat", strlen(*av))) 6132165648Spiso do_nat = 1; 6133165648Spiso else if (!strncmp(*av, "pipe", strlen(*av))) 613498943Sluigi do_pipe = 1; 6135140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 613698943Sluigi do_pipe = 2; 6137165648Spiso if (do_pipe || do_nat) { 613898943Sluigi ac--; 613998943Sluigi av++; 614098943Sluigi } 614198943Sluigi NEED1("missing command"); 614298943Sluigi 614398943Sluigi /* 6144165648Spiso * For pipes, queues and nats we normally say 'nat|pipe NN config' 6145165648Spiso * but the code is easier to parse as 'nat|pipe config NN' 614698943Sluigi * so we swap the two arguments. 614798943Sluigi */ 6148165648Spiso if ((do_pipe || do_nat) && ac > 1 && isdigit(*av[0])) { 614998943Sluigi char *p = av[0]; 6150117544Sluigi 615198943Sluigi av[0] = av[1]; 615298943Sluigi av[1] = p; 615398943Sluigi } 6154117328Sluigi 6155140271Sbrooks if (_substrcmp(*av, "add") == 0) 615698943Sluigi add(ac, av); 6157165648Spiso else if (do_nat && _substrcmp(*av, "show") == 0) 6158165648Spiso show_nat(ac, av); 6159140271Sbrooks else if (do_pipe && _substrcmp(*av, "config") == 0) 616098943Sluigi config_pipe(ac, av); 6161165648Spiso else if (do_nat && _substrcmp(*av, "config") == 0) 6162165648Spiso config_nat(ac, av); 6163140271Sbrooks else if (_substrcmp(*av, "delete") == 0) 616498943Sluigi delete(ac, av); 6165140271Sbrooks else if (_substrcmp(*av, "flush") == 0) 6166117544Sluigi flush(do_force); 6167140271Sbrooks else if (_substrcmp(*av, "zero") == 0) 6168117328Sluigi zero(ac, av, IP_FW_ZERO); 6169140271Sbrooks else if (_substrcmp(*av, "resetlog") == 0) 6170117328Sluigi zero(ac, av, IP_FW_RESETLOG); 6171140271Sbrooks else if (_substrcmp(*av, "print") == 0 || 6172140271Sbrooks _substrcmp(*av, "list") == 0) 6173117469Sluigi list(ac, av, do_acct); 6174140271Sbrooks else if (_substrcmp(*av, "set") == 0) 6175101978Sluigi sets_handler(ac, av); 6176140271Sbrooks else if (_substrcmp(*av, "table") == 0) 6177130281Sru table_handler(ac, av); 6178140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 6179109126Sdillon sysctl_handler(ac, av, 1); 6180140271Sbrooks else if (_substrcmp(*av, "disable") == 0) 6181109126Sdillon sysctl_handler(ac, av, 0); 6182140271Sbrooks else if (_substrcmp(*av, "show") == 0) 6183117469Sluigi list(ac, av, 1 /* show counters */); 6184117469Sluigi else 618598943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 6186117469Sluigi 6187117469Sluigi /* Free memory allocated in the argument parsing. */ 6188117544Sluigi free_args(save_ac, save_av); 618998943Sluigi return 0; 619098943Sluigi} 619198943Sluigi 619298943Sluigi 619398943Sluigistatic void 6194106505Smaximipfw_readfile(int ac, char *av[]) 619598943Sluigi{ 619698943Sluigi#define MAX_ARGS 32 619798943Sluigi char buf[BUFSIZ]; 6198117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 6199117469Sluigi int c, lineno=0; 620098943Sluigi FILE *f = NULL; 620198943Sluigi pid_t preproc = 0; 620298943Sluigi 6203117469Sluigi filename = av[ac-1]; 6204117469Sluigi 6205123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 620698943Sluigi switch(c) { 6207117469Sluigi case 'c': 6208117469Sluigi do_compact = 1; 6209117469Sluigi break; 6210117469Sluigi 6211123804Smaxim case 'f': 6212123804Smaxim do_force = 1; 6213123804Smaxim break; 6214123804Smaxim 6215117469Sluigi case 'N': 6216117469Sluigi do_resolv = 1; 6217117469Sluigi break; 6218117469Sluigi 6219117328Sluigi case 'n': 6220117328Sluigi test_only = 1; 6221117328Sluigi break; 6222117328Sluigi 622398943Sluigi case 'p': 622498943Sluigi cmd = optarg; 6225117469Sluigi /* 6226117469Sluigi * Skip previous args and delete last one, so we 6227117469Sluigi * pass all but the last argument to the preprocessor 6228117469Sluigi * via av[optind-1] 6229117469Sluigi */ 6230117469Sluigi av += optind - 1; 6231117469Sluigi ac -= optind - 1; 6232162773Smaxim if (ac < 2) 6233162773Smaxim errx(EX_USAGE, "no filename argument"); 6234117469Sluigi av[ac-1] = NULL; 6235117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 623698943Sluigi break; 623798943Sluigi 623898943Sluigi case 'q': 6239117469Sluigi do_quiet = 1; 624098943Sluigi break; 624198943Sluigi 6242117469Sluigi case 'S': 6243117469Sluigi show_sets = 1; 6244117469Sluigi break; 6245117469Sluigi 624698943Sluigi default: 624798943Sluigi errx(EX_USAGE, "bad arguments, for usage" 624898943Sluigi " summary ``ipfw''"); 624998943Sluigi } 625098943Sluigi 6251117469Sluigi if (cmd != NULL) 6252108231Skbyanc break; 6253108231Skbyanc } 6254108231Skbyanc 6255117469Sluigi if (cmd == NULL && ac != optind + 1) { 6256117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 6257117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 6258108231Skbyanc } 6259108231Skbyanc 6260117469Sluigi if ((f = fopen(filename, "r")) == NULL) 6261117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 626298943Sluigi 6263117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 626498943Sluigi int pipedes[2]; 626598943Sluigi 626698943Sluigi if (pipe(pipedes) == -1) 626798943Sluigi err(EX_OSERR, "cannot create pipe"); 626898943Sluigi 6269117469Sluigi preproc = fork(); 6270117469Sluigi if (preproc == -1) 627198943Sluigi err(EX_OSERR, "cannot fork"); 627298943Sluigi 6273117577Sluigi if (preproc == 0) { 6274117469Sluigi /* 6275117469Sluigi * Child, will run the preprocessor with the 6276117469Sluigi * file on stdin and the pipe on stdout. 6277117469Sluigi */ 627898943Sluigi if (dup2(fileno(f), 0) == -1 627998943Sluigi || dup2(pipedes[1], 1) == -1) 628098943Sluigi err(EX_OSERR, "dup2()"); 628198943Sluigi fclose(f); 628298943Sluigi close(pipedes[1]); 628398943Sluigi close(pipedes[0]); 6284117469Sluigi execvp(cmd, av); 628598943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 6286117469Sluigi } else { /* parent, will reopen f as the pipe */ 628798943Sluigi fclose(f); 628898943Sluigi close(pipedes[1]); 628998943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 629098943Sluigi int savederrno = errno; 629198943Sluigi 629298943Sluigi (void)kill(preproc, SIGTERM); 629398943Sluigi errno = savederrno; 629498943Sluigi err(EX_OSERR, "fdopen()"); 629598943Sluigi } 629698943Sluigi } 629798943Sluigi } 629898943Sluigi 6299117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 6300117469Sluigi char linename[10]; 6301117469Sluigi char *args[1]; 6302117469Sluigi 630398943Sluigi lineno++; 630498943Sluigi sprintf(linename, "Line %d", lineno); 6305117328Sluigi setprogname(linename); /* XXX */ 6306117469Sluigi args[0] = buf; 6307117469Sluigi ipfw_main(1, args); 630898943Sluigi } 630998943Sluigi fclose(f); 6310117469Sluigi if (cmd != NULL) { 6311117469Sluigi int status; 6312117469Sluigi 631398943Sluigi if (waitpid(preproc, &status, 0) == -1) 631498943Sluigi errx(EX_OSERR, "waitpid()"); 631598943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 631698943Sluigi errx(EX_UNAVAILABLE, 631798943Sluigi "preprocessor exited with status %d", 631898943Sluigi WEXITSTATUS(status)); 631998943Sluigi else if (WIFSIGNALED(status)) 632098943Sluigi errx(EX_UNAVAILABLE, 632198943Sluigi "preprocessor exited with signal %d", 632298943Sluigi WTERMSIG(status)); 632398943Sluigi } 632498943Sluigi} 632598943Sluigi 632698943Sluigiint 632798943Sluigimain(int ac, char *av[]) 632898943Sluigi{ 632998943Sluigi /* 633098943Sluigi * If the last argument is an absolute pathname, interpret it 633198943Sluigi * as a file to be preprocessed. 633298943Sluigi */ 633398943Sluigi 633498943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 633598943Sluigi ipfw_readfile(ac, av); 6336117544Sluigi else { 6337117544Sluigi if (ipfw_main(ac-1, av+1)) 6338117544Sluigi show_usage(); 6339117544Sluigi } 634098943Sluigi return EX_OK; 634198943Sluigi} 6342