ipfw2.c revision 159160
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 159160 2006-06-02 05:17:17Z mlaier $ 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 5098943Sluigi#include <net/if.h> 51136071Sgreen#include <net/pfvar.h> 52145246Sbrooks#include <net/route.h> /* def. of struct route */ 5398943Sluigi#include <netinet/in.h> 5498943Sluigi#include <netinet/in_systm.h> 5598943Sluigi#include <netinet/ip.h> 5698943Sluigi#include <netinet/ip_icmp.h> 57145246Sbrooks#include <netinet/icmp6.h> 5898943Sluigi#include <netinet/ip_fw.h> 5998943Sluigi#include <netinet/ip_dummynet.h> 6098943Sluigi#include <netinet/tcp.h> 6198943Sluigi#include <arpa/inet.h> 6298943Sluigi 63117328Sluigiint 6498943Sluigi do_resolv, /* Would try to resolve all */ 6598943Sluigi do_time, /* Show time stamps */ 6698943Sluigi do_quiet, /* Be quiet in add and flush */ 6798943Sluigi do_pipe, /* this cmd refers to a pipe */ 6898943Sluigi do_sort, /* field to sort results (0 = no) */ 6998943Sluigi do_dynamic, /* display dynamic rules */ 7098943Sluigi do_expired, /* display expired dynamic rules */ 71102098Sluigi do_compact, /* show rules in compact mode */ 72123804Smaxim do_force, /* do not ask for confirmation */ 73101628Sluigi show_sets, /* display rule sets */ 74117328Sluigi test_only, /* only check syntax */ 75123495Sluigi comment_only, /* only print action and comment */ 7698943Sluigi verbose; 7798943Sluigi 7898943Sluigi#define IP_MASK_ALL 0xffffffff 79130013Scsjp/* 80130013Scsjp * the following macro returns an error message if we run out of 81130013Scsjp * arguments. 82130013Scsjp */ 83130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 8498943Sluigi 85158879Soleg#define NOT_NUMBER(str, msg) do { \ 86158879Soleg char *c; \ 87158879Soleg for (c = str; *c != '\0'; c++) { \ 88158879Soleg if (isdigit(*c)) \ 89158879Soleg continue; \ 90158879Soleg errx(EX_DATAERR, msg); \ 91158879Soleg } \ 92158879Soleg} while (0) 93158879Soleg 9498943Sluigi/* 95117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 96117328Sluigi * various places in the parser. Entries are stored in arrays, 97117328Sluigi * with an entry with s=NULL as terminator. 98117328Sluigi * The search routines are match_token() and match_value(). 99117328Sluigi * Often, an element with x=0 contains an error string. 10098943Sluigi * 10198943Sluigi */ 10298943Sluigistruct _s_x { 103117469Sluigi char const *s; 10498943Sluigi int x; 10598943Sluigi}; 10698943Sluigi 10798943Sluigistatic struct _s_x f_tcpflags[] = { 10898943Sluigi { "syn", TH_SYN }, 10998943Sluigi { "fin", TH_FIN }, 11098943Sluigi { "ack", TH_ACK }, 11198943Sluigi { "psh", TH_PUSH }, 11298943Sluigi { "rst", TH_RST }, 11398943Sluigi { "urg", TH_URG }, 11498943Sluigi { "tcp flag", 0 }, 11598943Sluigi { NULL, 0 } 11698943Sluigi}; 11798943Sluigi 11898943Sluigistatic struct _s_x f_tcpopts[] = { 11998943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 12098943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 12198943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 12298943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 12398943Sluigi { "ts", IP_FW_TCPOPT_TS }, 12498943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 12598943Sluigi { "cc", IP_FW_TCPOPT_CC }, 12698943Sluigi { "tcp option", 0 }, 12798943Sluigi { NULL, 0 } 12898943Sluigi}; 12998943Sluigi 13098943Sluigi/* 13198943Sluigi * IP options span the range 0 to 255 so we need to remap them 13298943Sluigi * (though in fact only the low 5 bits are significant). 13398943Sluigi */ 13498943Sluigistatic struct _s_x f_ipopts[] = { 13598943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 13698943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 13798943Sluigi { "rr", IP_FW_IPOPT_RR}, 13898943Sluigi { "ts", IP_FW_IPOPT_TS}, 13998943Sluigi { "ip option", 0 }, 14098943Sluigi { NULL, 0 } 14198943Sluigi}; 14298943Sluigi 14398943Sluigistatic struct _s_x f_iptos[] = { 14498943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 14598943Sluigi { "throughput", IPTOS_THROUGHPUT}, 14698943Sluigi { "reliability", IPTOS_RELIABILITY}, 14798943Sluigi { "mincost", IPTOS_MINCOST}, 14898943Sluigi { "congestion", IPTOS_CE}, 14998943Sluigi { "ecntransport", IPTOS_ECT}, 15098943Sluigi { "ip tos option", 0}, 15198943Sluigi { NULL, 0 } 15298943Sluigi}; 15398943Sluigi 15498943Sluigistatic struct _s_x limit_masks[] = { 15598943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 15698943Sluigi {"src-addr", DYN_SRC_ADDR}, 15798943Sluigi {"src-port", DYN_SRC_PORT}, 15898943Sluigi {"dst-addr", DYN_DST_ADDR}, 15998943Sluigi {"dst-port", DYN_DST_PORT}, 16098943Sluigi {NULL, 0} 16198943Sluigi}; 16298943Sluigi 16398943Sluigi/* 16498943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 16598943Sluigi * This is only used in this code. 16698943Sluigi */ 16798943Sluigi#define IPPROTO_ETHERTYPE 0x1000 16898943Sluigistatic struct _s_x ether_types[] = { 16998943Sluigi /* 17098943Sluigi * Note, we cannot use "-:&/" in the names because they are field 17198943Sluigi * separators in the type specifications. Also, we use s = NULL as 17298943Sluigi * end-delimiter, because a type of 0 can be legal. 17398943Sluigi */ 17498943Sluigi { "ip", 0x0800 }, 17598943Sluigi { "ipv4", 0x0800 }, 17698943Sluigi { "ipv6", 0x86dd }, 17798943Sluigi { "arp", 0x0806 }, 17898943Sluigi { "rarp", 0x8035 }, 17998943Sluigi { "vlan", 0x8100 }, 18098943Sluigi { "loop", 0x9000 }, 18198943Sluigi { "trail", 0x1000 }, 18298943Sluigi { "at", 0x809b }, 18398943Sluigi { "atalk", 0x809b }, 18498943Sluigi { "aarp", 0x80f3 }, 18598943Sluigi { "pppoe_disc", 0x8863 }, 18698943Sluigi { "pppoe_sess", 0x8864 }, 18798943Sluigi { "ipx_8022", 0x00E0 }, 18898943Sluigi { "ipx_8023", 0x0000 }, 18998943Sluigi { "ipx_ii", 0x8137 }, 19098943Sluigi { "ipx_snap", 0x8137 }, 19198943Sluigi { "ipx", 0x8137 }, 19298943Sluigi { "ns", 0x0600 }, 19398943Sluigi { NULL, 0 } 19498943Sluigi}; 19598943Sluigi 19698943Sluigistatic void show_usage(void); 19798943Sluigi 19898943Sluigienum tokens { 19998943Sluigi TOK_NULL=0, 20098943Sluigi 20198943Sluigi TOK_OR, 20298943Sluigi TOK_NOT, 203101641Sluigi TOK_STARTBRACE, 204101641Sluigi TOK_ENDBRACE, 20598943Sluigi 20698943Sluigi TOK_ACCEPT, 20798943Sluigi TOK_COUNT, 20898943Sluigi TOK_PIPE, 20998943Sluigi TOK_QUEUE, 21098943Sluigi TOK_DIVERT, 21198943Sluigi TOK_TEE, 212141351Sglebius TOK_NETGRAPH, 213141351Sglebius TOK_NGTEE, 21498943Sluigi TOK_FORWARD, 21598943Sluigi TOK_SKIPTO, 21698943Sluigi TOK_DENY, 21798943Sluigi TOK_REJECT, 21898943Sluigi TOK_RESET, 21998943Sluigi TOK_UNREACH, 22098943Sluigi TOK_CHECKSTATE, 22198943Sluigi 222136071Sgreen TOK_ALTQ, 223136071Sgreen TOK_LOG, 224158879Soleg TOK_TAG, 225158879Soleg TOK_UNTAG, 226136071Sgreen 227158879Soleg TOK_TAGGED, 22898943Sluigi TOK_UID, 22998943Sluigi TOK_GID, 230133600Scsjp TOK_JAIL, 23198943Sluigi TOK_IN, 23298943Sluigi TOK_LIMIT, 23398943Sluigi TOK_KEEPSTATE, 23498943Sluigi TOK_LAYER2, 23598943Sluigi TOK_OUT, 236136073Sgreen TOK_DIVERTED, 237136073Sgreen TOK_DIVERTEDLOOPBACK, 238136073Sgreen TOK_DIVERTEDOUTPUT, 23998943Sluigi TOK_XMIT, 24098943Sluigi TOK_RECV, 24198943Sluigi TOK_VIA, 24298943Sluigi TOK_FRAG, 24398943Sluigi TOK_IPOPTS, 24498943Sluigi TOK_IPLEN, 24598943Sluigi TOK_IPID, 24698943Sluigi TOK_IPPRECEDENCE, 24798943Sluigi TOK_IPTOS, 24898943Sluigi TOK_IPTTL, 24998943Sluigi TOK_IPVER, 25098943Sluigi TOK_ESTAB, 25198943Sluigi TOK_SETUP, 252136075Sgreen TOK_TCPDATALEN, 25398943Sluigi TOK_TCPFLAGS, 25498943Sluigi TOK_TCPOPTS, 25598943Sluigi TOK_TCPSEQ, 25698943Sluigi TOK_TCPACK, 25798943Sluigi TOK_TCPWIN, 25898943Sluigi TOK_ICMPTYPES, 259102087Sluigi TOK_MAC, 260102087Sluigi TOK_MACTYPE, 261112250Scjc TOK_VERREVPATH, 262128575Sandre TOK_VERSRCREACH, 263133387Sandre TOK_ANTISPOOF, 264117241Sluigi TOK_IPSEC, 265117469Sluigi TOK_COMMENT, 26698943Sluigi 26798943Sluigi TOK_PLR, 268101978Sluigi TOK_NOERROR, 26998943Sluigi TOK_BUCKETS, 27098943Sluigi TOK_DSTIP, 27198943Sluigi TOK_SRCIP, 27298943Sluigi TOK_DSTPORT, 27398943Sluigi TOK_SRCPORT, 27498943Sluigi TOK_ALL, 27598943Sluigi TOK_MASK, 27698943Sluigi TOK_BW, 27798943Sluigi TOK_DELAY, 27898943Sluigi TOK_RED, 27998943Sluigi TOK_GRED, 28098943Sluigi TOK_DROPTAIL, 28198943Sluigi TOK_PROTO, 28298943Sluigi TOK_WEIGHT, 283145246Sbrooks 284145246Sbrooks TOK_IPV6, 285145246Sbrooks TOK_FLOWID, 286145246Sbrooks TOK_ICMP6TYPES, 287145246Sbrooks TOK_EXT6HDR, 288145246Sbrooks TOK_DSTIP6, 289145246Sbrooks TOK_SRCIP6, 290146894Smlaier 291146894Smlaier TOK_IPV4, 292149020Sbz TOK_UNREACH6, 293149020Sbz TOK_RESET6, 29498943Sluigi}; 29598943Sluigi 29698943Sluigistruct _s_x dummynet_params[] = { 29798943Sluigi { "plr", TOK_PLR }, 298101978Sluigi { "noerror", TOK_NOERROR }, 29998943Sluigi { "buckets", TOK_BUCKETS }, 30098943Sluigi { "dst-ip", TOK_DSTIP }, 30198943Sluigi { "src-ip", TOK_SRCIP }, 30298943Sluigi { "dst-port", TOK_DSTPORT }, 30398943Sluigi { "src-port", TOK_SRCPORT }, 30498943Sluigi { "proto", TOK_PROTO }, 30598943Sluigi { "weight", TOK_WEIGHT }, 30698943Sluigi { "all", TOK_ALL }, 30798943Sluigi { "mask", TOK_MASK }, 30898943Sluigi { "droptail", TOK_DROPTAIL }, 30998943Sluigi { "red", TOK_RED }, 31098943Sluigi { "gred", TOK_GRED }, 31198943Sluigi { "bw", TOK_BW }, 31298943Sluigi { "bandwidth", TOK_BW }, 31398943Sluigi { "delay", TOK_DELAY }, 31499475Sluigi { "pipe", TOK_PIPE }, 31598943Sluigi { "queue", TOK_QUEUE }, 316145246Sbrooks { "flow-id", TOK_FLOWID}, 317145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 318145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 319145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 320145246Sbrooks { "src-ip6", TOK_SRCIP6}, 32198943Sluigi { "dummynet-params", TOK_NULL }, 322117328Sluigi { NULL, 0 } /* terminator */ 32398943Sluigi}; 32498943Sluigi 32598943Sluigistruct _s_x rule_actions[] = { 32698943Sluigi { "accept", TOK_ACCEPT }, 32798943Sluigi { "pass", TOK_ACCEPT }, 32898943Sluigi { "allow", TOK_ACCEPT }, 32998943Sluigi { "permit", TOK_ACCEPT }, 33098943Sluigi { "count", TOK_COUNT }, 33198943Sluigi { "pipe", TOK_PIPE }, 33298943Sluigi { "queue", TOK_QUEUE }, 33398943Sluigi { "divert", TOK_DIVERT }, 33498943Sluigi { "tee", TOK_TEE }, 335141351Sglebius { "netgraph", TOK_NETGRAPH }, 336141351Sglebius { "ngtee", TOK_NGTEE }, 33798943Sluigi { "fwd", TOK_FORWARD }, 33898943Sluigi { "forward", TOK_FORWARD }, 33998943Sluigi { "skipto", TOK_SKIPTO }, 34098943Sluigi { "deny", TOK_DENY }, 34198943Sluigi { "drop", TOK_DENY }, 34298943Sluigi { "reject", TOK_REJECT }, 343149020Sbz { "reset6", TOK_RESET6 }, 34498943Sluigi { "reset", TOK_RESET }, 345149020Sbz { "unreach6", TOK_UNREACH6 }, 34699475Sluigi { "unreach", TOK_UNREACH }, 34798943Sluigi { "check-state", TOK_CHECKSTATE }, 348117469Sluigi { "//", TOK_COMMENT }, 349117328Sluigi { NULL, 0 } /* terminator */ 35098943Sluigi}; 35198943Sluigi 352136071Sgreenstruct _s_x rule_action_params[] = { 353136071Sgreen { "altq", TOK_ALTQ }, 354136071Sgreen { "log", TOK_LOG }, 355158879Soleg { "tag", TOK_TAG }, 356158879Soleg { "untag", TOK_UNTAG }, 357136071Sgreen { NULL, 0 } /* terminator */ 358136071Sgreen}; 359136071Sgreen 36098943Sluigistruct _s_x rule_options[] = { 361158879Soleg { "tagged", TOK_TAGGED }, 36298943Sluigi { "uid", TOK_UID }, 36398943Sluigi { "gid", TOK_GID }, 364133600Scsjp { "jail", TOK_JAIL }, 36598943Sluigi { "in", TOK_IN }, 36698943Sluigi { "limit", TOK_LIMIT }, 36798943Sluigi { "keep-state", TOK_KEEPSTATE }, 36898943Sluigi { "bridged", TOK_LAYER2 }, 36998943Sluigi { "layer2", TOK_LAYER2 }, 37098943Sluigi { "out", TOK_OUT }, 371136073Sgreen { "diverted", TOK_DIVERTED }, 372136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 373136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 37498943Sluigi { "xmit", TOK_XMIT }, 37598943Sluigi { "recv", TOK_RECV }, 37698943Sluigi { "via", TOK_VIA }, 37798943Sluigi { "fragment", TOK_FRAG }, 37898943Sluigi { "frag", TOK_FRAG }, 37998943Sluigi { "ipoptions", TOK_IPOPTS }, 38098943Sluigi { "ipopts", TOK_IPOPTS }, 38198943Sluigi { "iplen", TOK_IPLEN }, 38298943Sluigi { "ipid", TOK_IPID }, 38398943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 38498943Sluigi { "iptos", TOK_IPTOS }, 38598943Sluigi { "ipttl", TOK_IPTTL }, 38698943Sluigi { "ipversion", TOK_IPVER }, 38798943Sluigi { "ipver", TOK_IPVER }, 38898943Sluigi { "estab", TOK_ESTAB }, 38998943Sluigi { "established", TOK_ESTAB }, 39098943Sluigi { "setup", TOK_SETUP }, 391136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 39298943Sluigi { "tcpflags", TOK_TCPFLAGS }, 39398943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 39498943Sluigi { "tcpoptions", TOK_TCPOPTS }, 39598943Sluigi { "tcpopts", TOK_TCPOPTS }, 39698943Sluigi { "tcpseq", TOK_TCPSEQ }, 39798943Sluigi { "tcpack", TOK_TCPACK }, 39898943Sluigi { "tcpwin", TOK_TCPWIN }, 39999909Sluigi { "icmptype", TOK_ICMPTYPES }, 40098943Sluigi { "icmptypes", TOK_ICMPTYPES }, 401102087Sluigi { "dst-ip", TOK_DSTIP }, 402102087Sluigi { "src-ip", TOK_SRCIP }, 403102087Sluigi { "dst-port", TOK_DSTPORT }, 404102087Sluigi { "src-port", TOK_SRCPORT }, 405102087Sluigi { "proto", TOK_PROTO }, 406102087Sluigi { "MAC", TOK_MAC }, 407102087Sluigi { "mac", TOK_MAC }, 408102087Sluigi { "mac-type", TOK_MACTYPE }, 409112250Scjc { "verrevpath", TOK_VERREVPATH }, 410128575Sandre { "versrcreach", TOK_VERSRCREACH }, 411133387Sandre { "antispoof", TOK_ANTISPOOF }, 412117241Sluigi { "ipsec", TOK_IPSEC }, 413145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 414145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 415145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 416145246Sbrooks { "flow-id", TOK_FLOWID}, 417145246Sbrooks { "ipv6", TOK_IPV6}, 418145246Sbrooks { "ip6", TOK_IPV6}, 419146894Smlaier { "ipv4", TOK_IPV4}, 420146894Smlaier { "ip4", TOK_IPV4}, 421145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 422145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 423145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 424145246Sbrooks { "src-ip6", TOK_SRCIP6}, 425117469Sluigi { "//", TOK_COMMENT }, 42698943Sluigi 42798943Sluigi { "not", TOK_NOT }, /* pseudo option */ 42898943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 42998943Sluigi { "or", TOK_OR }, /* pseudo option */ 43098943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 431101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 432101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 433101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 434101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 435117328Sluigi { NULL, 0 } /* terminator */ 43698943Sluigi}; 43798943Sluigi 438153374Sglebius#define TABLEARG "tablearg" 439153374Sglebius 440117328Sluigistatic __inline uint64_t 441117328Sluigialign_uint64(uint64_t *pll) { 442117328Sluigi uint64_t ret; 443115793Sticso 444115793Sticso bcopy (pll, &ret, sizeof(ret)); 445115793Sticso return ret; 446129389Sstefanf} 447115793Sticso 448117328Sluigi/* 449117328Sluigi * conditionally runs the command. 450117328Sluigi */ 451117469Sluigistatic int 452119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 453117328Sluigi{ 454117328Sluigi static int s = -1; /* the socket */ 455117328Sluigi int i; 456117577Sluigi 457117328Sluigi if (test_only) 458117328Sluigi return 0; 459117328Sluigi 460117328Sluigi if (s == -1) 461117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 462117328Sluigi if (s < 0) 463117328Sluigi err(EX_UNAVAILABLE, "socket"); 464117328Sluigi 465117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 466130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 467130281Sru optname == IP_FW_TABLE_GETSIZE) 468117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 469117328Sluigi (socklen_t *)optlen); 470117328Sluigi else 471117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 472117328Sluigi return i; 473117328Sluigi} 474117328Sluigi 47598943Sluigi/** 47698943Sluigi * match_token takes a table and a string, returns the value associated 477117328Sluigi * with the string (-1 in case of failure). 47898943Sluigi */ 47998943Sluigistatic int 48098943Sluigimatch_token(struct _s_x *table, char *string) 48198943Sluigi{ 48298943Sluigi struct _s_x *pt; 483117469Sluigi uint i = strlen(string); 48498943Sluigi 48598943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 48698943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 48798943Sluigi return pt->x; 48898943Sluigi return -1; 489129389Sstefanf} 49098943Sluigi 491117328Sluigi/** 492117328Sluigi * match_value takes a table and a value, returns the string associated 493117328Sluigi * with the value (NULL in case of failure). 494117328Sluigi */ 495117469Sluigistatic char const * 496117469Sluigimatch_value(struct _s_x *p, int value) 49798943Sluigi{ 49898943Sluigi for (; p->s != NULL; p++) 49998943Sluigi if (p->x == value) 50098943Sluigi return p->s; 50198943Sluigi return NULL; 50298943Sluigi} 50398943Sluigi 50498943Sluigi/* 505140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 506140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 507140271Sbrooks * of the second. A warning is printed to stderr in the case that the 508140271Sbrooks * first string is a sub-string of the second. 509140271Sbrooks * 510140271Sbrooks * This function will be removed in the future through the usual 511140271Sbrooks * deprecation process. 512140271Sbrooks */ 513140271Sbrooksstatic int 514140271Sbrooks_substrcmp(const char *str1, const char* str2) 515140271Sbrooks{ 516140271Sbrooks 517140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 518140271Sbrooks return 1; 519140271Sbrooks 520140271Sbrooks if (strlen(str1) != strlen(str2)) 521140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 522140271Sbrooks str1, str2); 523140271Sbrooks return 0; 524140271Sbrooks} 525140271Sbrooks 526140271Sbrooks/* 527140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 528140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 529140271Sbrooks * of the first. A warning is printed to stderr in the case that the 530140271Sbrooks * first string does not match the third. 531140271Sbrooks * 532140271Sbrooks * This function exists to warn about the bizzare construction 533140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 534140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 535140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 536140271Sbrooks * other string beginning with "by". 537140271Sbrooks * 538140271Sbrooks * This function will be removed in the future through the usual 539140271Sbrooks * deprecation process. 540140271Sbrooks */ 541140271Sbrooksstatic int 542140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 543140271Sbrooks{ 544140271Sbrooks 545140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 546140271Sbrooks return 1; 547140271Sbrooks 548140271Sbrooks if (strcmp(str1, str3) != 0) 549140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 550140271Sbrooks str1, str3); 551140271Sbrooks return 0; 552140271Sbrooks} 553140271Sbrooks 554140271Sbrooks/* 55598943Sluigi * prints one port, symbolic or numeric 55698943Sluigi */ 55798943Sluigistatic void 558117328Sluigiprint_port(int proto, uint16_t port) 55998943Sluigi{ 56098943Sluigi 56198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 562117469Sluigi char const *s; 56398943Sluigi 56498943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 56598943Sluigi printf("%s", s); 56698943Sluigi else 56798943Sluigi printf("0x%04x", port); 56898943Sluigi } else { 56998943Sluigi struct servent *se = NULL; 57098943Sluigi if (do_resolv) { 57198943Sluigi struct protoent *pe = getprotobynumber(proto); 57298943Sluigi 57398943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 57498943Sluigi } 57598943Sluigi if (se) 57698943Sluigi printf("%s", se->s_name); 57798943Sluigi else 57898943Sluigi printf("%d", port); 57998943Sluigi } 58098943Sluigi} 58198943Sluigi 582117328Sluigistruct _s_x _port_name[] = { 583117328Sluigi {"dst-port", O_IP_DSTPORT}, 584117328Sluigi {"src-port", O_IP_SRCPORT}, 585117328Sluigi {"ipid", O_IPID}, 586117328Sluigi {"iplen", O_IPLEN}, 587117328Sluigi {"ipttl", O_IPTTL}, 588117328Sluigi {"mac-type", O_MAC_TYPE}, 589136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 590158879Soleg {"tagged", O_TAGGED}, 591117328Sluigi {NULL, 0} 592117328Sluigi}; 593117328Sluigi 59498943Sluigi/* 595117328Sluigi * Print the values in a list 16-bit items of the types above. 59698943Sluigi * XXX todo: add support for mask. 59798943Sluigi */ 59898943Sluigistatic void 599102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 60098943Sluigi{ 601117328Sluigi uint16_t *p = cmd->ports; 60298943Sluigi int i; 603117469Sluigi char const *sep; 60498943Sluigi 60598943Sluigi if (cmd->o.len & F_NOT) 60698943Sluigi printf(" not"); 607116690Sluigi if (opcode != 0) { 608117328Sluigi sep = match_value(_port_name, opcode); 609117328Sluigi if (sep == NULL) 610116690Sluigi sep = "???"; 611116690Sluigi printf (" %s", sep); 612116690Sluigi } 613116690Sluigi sep = " "; 61498943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 61598943Sluigi printf(sep); 61698943Sluigi print_port(proto, p[0]); 61798943Sluigi if (p[0] != p[1]) { 61898943Sluigi printf("-"); 61998943Sluigi print_port(proto, p[1]); 62098943Sluigi } 62198943Sluigi sep = ","; 62298943Sluigi } 62398943Sluigi} 62498943Sluigi 62598943Sluigi/* 62698943Sluigi * Like strtol, but also translates service names into port numbers 62798943Sluigi * for some protocols. 62898943Sluigi * In particular: 62998943Sluigi * proto == -1 disables the protocol check; 63098943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 63198943Sluigi * proto == <some value in /etc/protocols> matches the values there. 632101628Sluigi * Returns *end == s in case the parameter is not found. 63398943Sluigi */ 63498943Sluigistatic int 63598943Sluigistrtoport(char *s, char **end, int base, int proto) 63698943Sluigi{ 637101628Sluigi char *p, *buf; 638101628Sluigi char *s1; 63998943Sluigi int i; 64098943Sluigi 641101628Sluigi *end = s; /* default - not found */ 642117577Sluigi if (*s == '\0') 643101628Sluigi return 0; /* not found */ 644106505Smaxim 64598943Sluigi if (isdigit(*s)) 64698943Sluigi return strtol(s, end, base); 64798943Sluigi 64898943Sluigi /* 649101628Sluigi * find separator. '\\' escapes the next char. 65098943Sluigi */ 651101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 652101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 653101628Sluigi s1++; 65498943Sluigi 655101628Sluigi buf = malloc(s1 - s + 1); 656101628Sluigi if (buf == NULL) 657101628Sluigi return 0; 658101628Sluigi 659101628Sluigi /* 660101628Sluigi * copy into a buffer skipping backslashes 661101628Sluigi */ 662101628Sluigi for (p = s, i = 0; p != s1 ; p++) 663117577Sluigi if (*p != '\\') 664101628Sluigi buf[i++] = *p; 665101628Sluigi buf[i++] = '\0'; 666101628Sluigi 66798943Sluigi if (proto == IPPROTO_ETHERTYPE) { 668101628Sluigi i = match_token(ether_types, buf); 669101628Sluigi free(buf); 670101628Sluigi if (i != -1) { /* found */ 67198943Sluigi *end = s1; 67298943Sluigi return i; 67398943Sluigi } 67498943Sluigi } else { 67598943Sluigi struct protoent *pe = NULL; 67698943Sluigi struct servent *se; 67798943Sluigi 67898943Sluigi if (proto != 0) 67998943Sluigi pe = getprotobynumber(proto); 68098943Sluigi setservent(1); 681101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 682101628Sluigi free(buf); 68398943Sluigi if (se != NULL) { 68498943Sluigi *end = s1; 68598943Sluigi return ntohs(se->s_port); 68698943Sluigi } 68798943Sluigi } 688101628Sluigi return 0; /* not found */ 68998943Sluigi} 69098943Sluigi 69198943Sluigi/* 692136071Sgreen * Map between current altq queue id numbers and names. 693136071Sgreen */ 694136071Sgreenstatic int altq_fetched = 0; 695136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 696136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 697136071Sgreen 698136071Sgreenstatic void 699136071Sgreenaltq_set_enabled(int enabled) 700136071Sgreen{ 701136071Sgreen int pffd; 702136071Sgreen 703136071Sgreen pffd = open("/dev/pf", O_RDWR); 704136071Sgreen if (pffd == -1) 705136071Sgreen err(EX_UNAVAILABLE, 706136071Sgreen "altq support opening pf(4) control device"); 707136071Sgreen if (enabled) { 708136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 709136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 710136071Sgreen } else { 711136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 712136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 713136071Sgreen } 714136071Sgreen close(pffd); 715136071Sgreen} 716136071Sgreen 717136071Sgreenstatic void 718136071Sgreenaltq_fetch() 719136071Sgreen{ 720136071Sgreen struct pfioc_altq pfioc; 721136071Sgreen struct pf_altq *altq; 722136071Sgreen int pffd, mnr; 723136071Sgreen 724136071Sgreen if (altq_fetched) 725136071Sgreen return; 726136071Sgreen altq_fetched = 1; 727136071Sgreen pffd = open("/dev/pf", O_RDONLY); 728136071Sgreen if (pffd == -1) { 729136071Sgreen warn("altq support opening pf(4) control device"); 730136071Sgreen return; 731136071Sgreen } 732136071Sgreen bzero(&pfioc, sizeof(pfioc)); 733136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 734136071Sgreen warn("altq support getting queue list"); 735136071Sgreen close(pffd); 736136071Sgreen return; 737136071Sgreen } 738136071Sgreen mnr = pfioc.nr; 739136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 740136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 741136071Sgreen if (errno == EBUSY) 742136071Sgreen break; 743136071Sgreen warn("altq support getting queue list"); 744136071Sgreen close(pffd); 745136071Sgreen return; 746136071Sgreen } 747136071Sgreen if (pfioc.altq.qid == 0) 748136071Sgreen continue; 749136071Sgreen altq = malloc(sizeof(*altq)); 750136071Sgreen if (altq == NULL) 751136071Sgreen err(EX_OSERR, "malloc"); 752136071Sgreen *altq = pfioc.altq; 753136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 754136071Sgreen } 755136071Sgreen close(pffd); 756136071Sgreen} 757136071Sgreen 758136071Sgreenstatic u_int32_t 759136071Sgreenaltq_name_to_qid(const char *name) 760136071Sgreen{ 761136071Sgreen struct pf_altq *altq; 762136071Sgreen 763136071Sgreen altq_fetch(); 764136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 765136071Sgreen if (strcmp(name, altq->qname) == 0) 766136071Sgreen break; 767136071Sgreen if (altq == NULL) 768136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 769136071Sgreen return altq->qid; 770136071Sgreen} 771136071Sgreen 772136071Sgreenstatic const char * 773136071Sgreenaltq_qid_to_name(u_int32_t qid) 774136071Sgreen{ 775136071Sgreen struct pf_altq *altq; 776136071Sgreen 777136071Sgreen altq_fetch(); 778136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 779136071Sgreen if (qid == altq->qid) 780136071Sgreen break; 781136071Sgreen if (altq == NULL) 782136071Sgreen return NULL; 783136071Sgreen return altq->qname; 784136071Sgreen} 785136071Sgreen 786136071Sgreenstatic void 787136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 788136071Sgreen{ 789136071Sgreen *qid = altq_name_to_qid(av); 790136071Sgreen} 791136071Sgreen 792136071Sgreen/* 793117328Sluigi * Fill the body of the command with the list of port ranges. 79498943Sluigi */ 79598943Sluigistatic int 79698943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 79798943Sluigi{ 798117328Sluigi uint16_t a, b, *p = cmd->ports; 79998943Sluigi int i = 0; 800102087Sluigi char *s = av; 80198943Sluigi 802102087Sluigi while (*s) { 80398943Sluigi a = strtoport(av, &s, 0, proto); 80498943Sluigi if (s == av) /* no parameter */ 80598943Sluigi break; 80698943Sluigi if (*s == '-') { /* a range */ 80798943Sluigi av = s+1; 80898943Sluigi b = strtoport(av, &s, 0, proto); 80998943Sluigi if (s == av) /* no parameter */ 81098943Sluigi break; 81198943Sluigi p[0] = a; 81298943Sluigi p[1] = b; 813117328Sluigi } else if (*s == ',' || *s == '\0' ) 81498943Sluigi p[0] = p[1] = a; 815117328Sluigi else /* invalid separator */ 816101978Sluigi errx(EX_DATAERR, "invalid separator <%c> in <%s>\n", 817101978Sluigi *s, av); 818102087Sluigi i++; 819102087Sluigi p += 2; 82098943Sluigi av = s+1; 82198943Sluigi } 82298943Sluigi if (i > 0) { 82398943Sluigi if (i+1 > F_LEN_MASK) 824102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 82598943Sluigi cmd->o.len |= i+1; /* leave F_NOT and F_OR untouched */ 82698943Sluigi } 82798943Sluigi return i; 82898943Sluigi} 82998943Sluigi 83098943Sluigistatic struct _s_x icmpcodes[] = { 83198943Sluigi { "net", ICMP_UNREACH_NET }, 83298943Sluigi { "host", ICMP_UNREACH_HOST }, 83398943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 83498943Sluigi { "port", ICMP_UNREACH_PORT }, 83598943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 83698943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 83798943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 83898943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 83998943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 84098943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 84198943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 84298943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 84398943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 84498943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 84598943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 84698943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 84798943Sluigi { NULL, 0 } 84898943Sluigi}; 84998943Sluigi 85098943Sluigistatic void 85198943Sluigifill_reject_code(u_short *codep, char *str) 85298943Sluigi{ 85398943Sluigi int val; 85498943Sluigi char *s; 85598943Sluigi 85698943Sluigi val = strtoul(str, &s, 0); 85798943Sluigi if (s == str || *s != '\0' || val >= 0x100) 85898943Sluigi val = match_token(icmpcodes, str); 859102087Sluigi if (val < 0) 86098943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 86198943Sluigi *codep = val; 86298943Sluigi return; 86398943Sluigi} 86498943Sluigi 86598943Sluigistatic void 866117328Sluigiprint_reject_code(uint16_t code) 86798943Sluigi{ 868117469Sluigi char const *s = match_value(icmpcodes, code); 86998943Sluigi 87098943Sluigi if (s != NULL) 87199475Sluigi printf("unreach %s", s); 87298943Sluigi else 87399475Sluigi printf("unreach %u", code); 87498943Sluigi} 87598943Sluigi 876149020Sbzstatic struct _s_x icmp6codes[] = { 877149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 878149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 879149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 880149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 881149020Sbz { NULL, 0 } 882149020Sbz}; 883149020Sbz 884149020Sbzstatic void 885149020Sbzfill_unreach6_code(u_short *codep, char *str) 886149020Sbz{ 887149020Sbz int val; 888149020Sbz char *s; 889149020Sbz 890149020Sbz val = strtoul(str, &s, 0); 891149020Sbz if (s == str || *s != '\0' || val >= 0x100) 892149020Sbz val = match_token(icmp6codes, str); 893149020Sbz if (val < 0) 894149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 895149020Sbz *codep = val; 896149020Sbz return; 897149020Sbz} 898149020Sbz 899149020Sbzstatic void 900149020Sbzprint_unreach6_code(uint16_t code) 901149020Sbz{ 902149020Sbz char const *s = match_value(icmp6codes, code); 903149020Sbz 904149020Sbz if (s != NULL) 905149020Sbz printf("unreach6 %s", s); 906149020Sbz else 907149020Sbz printf("unreach6 %u", code); 908149020Sbz} 909149020Sbz 91098943Sluigi/* 91198943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 91298943Sluigi * or -1 if the mask is not contiguous. 91398943Sluigi * XXX this needs a proper fix. 91498943Sluigi * This effectively works on masks in big-endian (network) format. 91598943Sluigi * when compiled on little endian architectures. 91698943Sluigi * 91798943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 91898943Sluigi * the first bit on the wire is bit 0 of the first byte. 91998943Sluigi * len is the max length in bits. 92098943Sluigi */ 92198943Sluigistatic int 922117577Sluigicontigmask(uint8_t *p, int len) 92398943Sluigi{ 92498943Sluigi int i, n; 925117577Sluigi 92698943Sluigi for (i=0; i<len ; i++) 92798943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 92898943Sluigi break; 92998943Sluigi for (n=i+1; n < len; n++) 93098943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 93198943Sluigi return -1; /* mask not contiguous */ 93298943Sluigi return i; 93398943Sluigi} 93498943Sluigi 93598943Sluigi/* 93698943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 93798943Sluigi * There is a specialized check for f_tcpflags. 93898943Sluigi */ 93998943Sluigistatic void 940117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 94198943Sluigi{ 942117469Sluigi char const *comma = ""; 94398943Sluigi int i; 944117577Sluigi uint8_t set = cmd->arg1 & 0xff; 945117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 94698943Sluigi 94798943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 94898943Sluigi printf(" setup"); 94998943Sluigi return; 95098943Sluigi } 95198943Sluigi 95298943Sluigi printf(" %s ", name); 95398943Sluigi for (i=0; list[i].x != 0; i++) { 95498943Sluigi if (set & list[i].x) { 95598943Sluigi set &= ~list[i].x; 95698943Sluigi printf("%s%s", comma, list[i].s); 95798943Sluigi comma = ","; 95898943Sluigi } 95998943Sluigi if (clear & list[i].x) { 96098943Sluigi clear &= ~list[i].x; 96198943Sluigi printf("%s!%s", comma, list[i].s); 96298943Sluigi comma = ","; 96398943Sluigi } 96498943Sluigi } 96598943Sluigi} 96698943Sluigi 96798943Sluigi/* 96898943Sluigi * Print the ip address contained in a command. 96998943Sluigi */ 97098943Sluigistatic void 971117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 97298943Sluigi{ 97398943Sluigi struct hostent *he = NULL; 974117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 975117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 97698943Sluigi 977102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 97898943Sluigi 97998943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 98098943Sluigi printf("me"); 98198943Sluigi return; 98298943Sluigi } 983130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 984130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 985130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 986130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 987130281Sru printf(",%u", *a); 988130281Sru printf(")"); 989130281Sru return; 990130281Sru } 99198943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 992117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 993116716Sluigi int i, j; 99498943Sluigi char comma = '{'; 99598943Sluigi 99698943Sluigi x = cmd->o.arg1 - 1; 99798943Sluigi x = htonl( ~x ); 99898943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 99998943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1000117577Sluigi contigmask((uint8_t *)&x, 32)); 100198943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 100298943Sluigi x &= 0xff; /* base */ 1003116716Sluigi /* 1004116716Sluigi * Print bits and ranges. 1005116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1006116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1007116716Sluigi * range, otherwise only print the initial bit and rescan. 1008116716Sluigi */ 100998943Sluigi for (i=0; i < cmd->o.arg1; i++) 1010117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1011116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1012117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1013116716Sluigi break; 101498943Sluigi printf("%c%d", comma, i+x); 1015116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1016116716Sluigi printf("-%d", j-1+x); 1017116716Sluigi i = j-1; 1018116716Sluigi } 101998943Sluigi comma = ','; 102098943Sluigi } 102198943Sluigi printf("}"); 102298943Sluigi return; 102398943Sluigi } 1024117328Sluigi /* 1025117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1026117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1027117328Sluigi * use that to count the number of entries. 1028117328Sluigi */ 1029117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1030117328Sluigi int mb = /* mask length */ 1031117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1032117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 103398943Sluigi if (mb == 32 && do_resolv) 1034117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 103598943Sluigi if (he != NULL) /* resolved to name */ 103698943Sluigi printf("%s", he->h_name); 103798943Sluigi else if (mb == 0) /* any */ 103898943Sluigi printf("any"); 103998943Sluigi else { /* numeric IP followed by some kind of mask */ 1040117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 104198943Sluigi if (mb < 0) 1042117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 104398943Sluigi else if (mb < 32) 104498943Sluigi printf("/%d", mb); 104598943Sluigi } 1046117328Sluigi if (len > 1) 1047117328Sluigi printf(","); 1048117328Sluigi } 104998943Sluigi} 105098943Sluigi 105198943Sluigi/* 105298943Sluigi * prints a MAC address/mask pair 105398943Sluigi */ 105498943Sluigistatic void 1055117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 105698943Sluigi{ 105798943Sluigi int l = contigmask(mask, 48); 105898943Sluigi 105998943Sluigi if (l == 0) 106098943Sluigi printf(" any"); 106198943Sluigi else { 106298943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 106398943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 106498943Sluigi if (l == -1) 106598943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 106698943Sluigi mask[0], mask[1], mask[2], 106798943Sluigi mask[3], mask[4], mask[5]); 106898943Sluigi else if (l < 48) 106998943Sluigi printf("/%d", l); 107098943Sluigi } 107198943Sluigi} 107298943Sluigi 107399475Sluigistatic void 107499475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 107599475Sluigi{ 1076117328Sluigi uint8_t type; 107798943Sluigi 107899475Sluigi cmd->d[0] = 0; 107999475Sluigi while (*av) { 108099475Sluigi if (*av == ',') 108199475Sluigi av++; 108299475Sluigi 108399475Sluigi type = strtoul(av, &av, 0); 108499475Sluigi 108599475Sluigi if (*av != ',' && *av != '\0') 108699475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 108799475Sluigi 108899475Sluigi if (type > 31) 108999475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 109099475Sluigi 109199475Sluigi cmd->d[0] |= 1 << type; 109299475Sluigi } 109399475Sluigi cmd->o.opcode = O_ICMPTYPE; 109499475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 109599475Sluigi} 109699475Sluigi 109799475Sluigistatic void 109899475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 109999475Sluigi{ 110099475Sluigi int i; 110199475Sluigi char sep= ' '; 110299475Sluigi 110399475Sluigi printf(" icmptypes"); 110499475Sluigi for (i = 0; i < 32; i++) { 110599475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 110699475Sluigi continue; 110799475Sluigi printf("%c%d", sep, i); 110899475Sluigi sep = ','; 110999475Sluigi } 111099475Sluigi} 111199475Sluigi 1112145246Sbrooks/* 1113145246Sbrooks * Print the ip address contained in a command. 1114145246Sbrooks */ 1115145246Sbrooksstatic void 1116145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1117145246Sbrooks{ 1118145246Sbrooks struct hostent *he = NULL; 1119145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1120145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1121145246Sbrooks char trad[255]; 1122145246Sbrooks 1123145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1124145246Sbrooks 1125145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1126145246Sbrooks printf("me6"); 1127145246Sbrooks return; 1128145246Sbrooks } 1129145246Sbrooks if (cmd->o.opcode == O_IP6) { 1130152923Sume printf(" ip6"); 1131145246Sbrooks return; 1132145246Sbrooks } 1133145246Sbrooks 1134145246Sbrooks /* 1135145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1136145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1137145246Sbrooks * use that to count the number of entries. 1138145246Sbrooks */ 1139145246Sbrooks 1140145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1141145246Sbrooks int mb = /* mask length */ 1142145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1143145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1144145246Sbrooks 1145145246Sbrooks if (mb == 128 && do_resolv) 1146145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1147145246Sbrooks if (he != NULL) /* resolved to name */ 1148145246Sbrooks printf("%s", he->h_name); 1149145246Sbrooks else if (mb == 0) /* any */ 1150145246Sbrooks printf("any"); 1151145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1152145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1153145246Sbrooks printf("Error ntop in print_ip6\n"); 1154145246Sbrooks printf("%s", trad ); 1155145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1156145246Sbrooks printf(":%s", 1157145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1158145246Sbrooks else if (mb < 128) 1159145246Sbrooks printf("/%d", mb); 1160145246Sbrooks } 1161145246Sbrooks if (len > 2) 1162145246Sbrooks printf(","); 1163145246Sbrooks } 1164145246Sbrooks} 1165145246Sbrooks 1166145246Sbrooksstatic void 1167145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1168145246Sbrooks{ 1169145246Sbrooks uint8_t type; 1170145246Sbrooks 1171145246Sbrooks cmd->d[0] = 0; 1172145246Sbrooks while (*av) { 1173145246Sbrooks if (*av == ',') 1174145246Sbrooks av++; 1175145246Sbrooks type = strtoul(av, &av, 0); 1176145246Sbrooks if (*av != ',' && *av != '\0') 1177145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1178145246Sbrooks /* 1179145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1180145246Sbrooks * we shouldn't be able to filter all possiable values 1181145246Sbrooks * regardless of the ability of the rest of the kernel to do 1182145246Sbrooks * anything useful with them. 1183145246Sbrooks */ 1184145246Sbrooks if (type > ICMP6_MAXTYPE) 1185145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1186145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1187145246Sbrooks } 1188145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1189145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1190145246Sbrooks} 1191145246Sbrooks 1192145246Sbrooks 1193145246Sbrooksstatic void 1194145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1195145246Sbrooks{ 1196145246Sbrooks int i, j; 1197145246Sbrooks char sep= ' '; 1198145246Sbrooks 1199152923Sume printf(" ip6 icmp6types"); 1200145246Sbrooks for (i = 0; i < 7; i++) 1201145246Sbrooks for (j=0; j < 32; ++j) { 1202145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1203145246Sbrooks continue; 1204145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1205145246Sbrooks sep = ','; 1206145246Sbrooks } 1207145246Sbrooks} 1208145246Sbrooks 1209145246Sbrooksstatic void 1210145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1211145246Sbrooks{ 1212145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1213145246Sbrooks char sep = ','; 1214145246Sbrooks 1215145246Sbrooks printf(" flow-id "); 1216145246Sbrooks for( i=0; i < limit; ++i) { 1217145246Sbrooks if (i == limit - 1) 1218145246Sbrooks sep = ' '; 1219145246Sbrooks printf("%d%c", cmd->d[i], sep); 1220145246Sbrooks } 1221145246Sbrooks} 1222145246Sbrooks 1223145246Sbrooks/* structure and define for the extension header in ipv6 */ 1224145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1225145246Sbrooks { "frag", EXT_FRAGMENT }, 1226145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1227145246Sbrooks { "route", EXT_ROUTING }, 1228149020Sbz { "dstopt", EXT_DSTOPTS }, 1229145246Sbrooks { "ah", EXT_AH }, 1230145246Sbrooks { "esp", EXT_ESP }, 1231145246Sbrooks { NULL, 0 } 1232145246Sbrooks}; 1233145246Sbrooks 1234145246Sbrooks/* fills command for the extension header filtering */ 1235145246Sbrooksint 1236145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1237145246Sbrooks{ 1238145246Sbrooks int tok; 1239145246Sbrooks char *s = av; 1240145246Sbrooks 1241145246Sbrooks cmd->arg1 = 0; 1242145246Sbrooks 1243145246Sbrooks while(s) { 1244145246Sbrooks av = strsep( &s, ",") ; 1245145246Sbrooks tok = match_token(ext6hdrcodes, av); 1246145246Sbrooks switch (tok) { 1247145246Sbrooks case EXT_FRAGMENT: 1248145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1249145246Sbrooks break; 1250145246Sbrooks 1251145246Sbrooks case EXT_HOPOPTS: 1252145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1253145246Sbrooks break; 1254145246Sbrooks 1255145246Sbrooks case EXT_ROUTING: 1256145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1257145246Sbrooks break; 1258145246Sbrooks 1259149020Sbz case EXT_DSTOPTS: 1260149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1261149020Sbz break; 1262149020Sbz 1263145246Sbrooks case EXT_AH: 1264145246Sbrooks cmd->arg1 |= EXT_AH; 1265145246Sbrooks break; 1266145246Sbrooks 1267145246Sbrooks case EXT_ESP: 1268145246Sbrooks cmd->arg1 |= EXT_ESP; 1269145246Sbrooks break; 1270145246Sbrooks 1271145246Sbrooks default: 1272145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1273145246Sbrooks break; 1274145246Sbrooks } 1275145246Sbrooks } 1276145246Sbrooks if (cmd->arg1 == 0 ) 1277145246Sbrooks return 0; 1278145246Sbrooks cmd->opcode = O_EXT_HDR; 1279145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1280145246Sbrooks return 1; 1281145246Sbrooks} 1282145246Sbrooks 1283145246Sbrooksvoid 1284145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1285145246Sbrooks{ 1286145246Sbrooks char sep = ' '; 1287145246Sbrooks 1288145246Sbrooks printf(" extension header:"); 1289145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1290145246Sbrooks printf("%cfragmentation", sep); 1291145246Sbrooks sep = ','; 1292145246Sbrooks } 1293145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1294145246Sbrooks printf("%chop options", sep); 1295145246Sbrooks sep = ','; 1296145246Sbrooks } 1297145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1298145246Sbrooks printf("%crouting options", sep); 1299145246Sbrooks sep = ','; 1300145246Sbrooks } 1301149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1302149020Sbz printf("%cdestination options", sep); 1303149020Sbz sep = ','; 1304149020Sbz } 1305145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1306145246Sbrooks printf("%cauthentication header", sep); 1307145246Sbrooks sep = ','; 1308145246Sbrooks } 1309145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1310145246Sbrooks printf("%cencapsulated security payload", sep); 1311145246Sbrooks } 1312145246Sbrooks} 1313145246Sbrooks 131498943Sluigi/* 131598943Sluigi * show_ipfw() prints the body of an ipfw rule. 131698943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 131798943Sluigi * a helper function to produce these entries if not provided explicitly. 1318102087Sluigi * The first argument is the list of fields we have, the second is 1319102087Sluigi * the list of fields we want to be printed. 1320101978Sluigi * 1321102087Sluigi * Special cases if we have provided a MAC header: 1322102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1323102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1324102087Sluigi * 1325102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 132698943Sluigi */ 1327101978Sluigi#define HAVE_PROTO 0x0001 1328101978Sluigi#define HAVE_SRCIP 0x0002 1329101978Sluigi#define HAVE_DSTIP 0x0004 1330101978Sluigi#define HAVE_MAC 0x0008 1331101978Sluigi#define HAVE_MACTYPE 0x0010 1332146894Smlaier#define HAVE_PROTO4 0x0040 1333145246Sbrooks#define HAVE_PROTO6 0x0080 1334102087Sluigi#define HAVE_OPTIONS 0x8000 133598943Sluigi 1336101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 133798943Sluigistatic void 1338102087Sluigishow_prerequisites(int *flags, int want, int cmd) 133998943Sluigi{ 1340123495Sluigi if (comment_only) 1341123495Sluigi return; 1342102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1343102087Sluigi *flags |= HAVE_OPTIONS; 1344102087Sluigi 1345102087Sluigi if ( (*flags & (HAVE_MAC|HAVE_MACTYPE|HAVE_OPTIONS)) == HAVE_MAC && 1346102087Sluigi cmd != O_MAC_TYPE) { 1347102087Sluigi /* 1348102087Sluigi * mac-type was optimized out by the compiler, 1349102087Sluigi * restore it 1350102087Sluigi */ 1351102087Sluigi printf(" any"); 1352102087Sluigi *flags |= HAVE_MACTYPE | HAVE_OPTIONS; 1353102087Sluigi return; 1354101978Sluigi } 1355102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1356102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1357146894Smlaier if ( (*flags & HAVE_PROTO4)) 1358146894Smlaier printf(" ip4"); 1359146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1360146894Smlaier printf(" ip6"); 1361146894Smlaier else 1362146894Smlaier printf(" ip"); 1363146894Smlaier 1364102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1365102087Sluigi printf(" from any"); 1366102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1367102087Sluigi printf(" to any"); 1368102087Sluigi } 136998943Sluigi *flags |= want; 137098943Sluigi} 137198943Sluigi 137298943Sluigistatic void 1373112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 137498943Sluigi{ 1375107291Skeramida static int twidth = 0; 137698943Sluigi int l; 1377158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1378117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 137998943Sluigi int proto = 0; /* default */ 138098943Sluigi int flags = 0; /* prerequisites */ 138198943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1382136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 138398943Sluigi int or_block = 0; /* we are in an or block */ 1384117328Sluigi uint32_t set_disable; 138598943Sluigi 1386115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1387101628Sluigi 1388101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1389101628Sluigi if (!show_sets) 1390101628Sluigi return; 1391101628Sluigi else 1392101628Sluigi printf("# DISABLED "); 1393101628Sluigi } 139498943Sluigi printf("%05u ", rule->rulenum); 139598943Sluigi 1396117469Sluigi if (pcwidth>0 || bcwidth>0) 1397115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1398115793Sticso bcwidth, align_uint64(&rule->bcnt)); 139998943Sluigi 1400117472Sluigi if (do_time == 2) 1401117472Sluigi printf("%10u ", rule->timestamp); 1402117472Sluigi else if (do_time == 1) { 1403107291Skeramida char timestr[30]; 1404107291Skeramida time_t t = (time_t)0; 1405107291Skeramida 1406107291Skeramida if (twidth == 0) { 1407107291Skeramida strcpy(timestr, ctime(&t)); 1408107291Skeramida *strchr(timestr, '\n') = '\0'; 1409107291Skeramida twidth = strlen(timestr); 1410107291Skeramida } 141198943Sluigi if (rule->timestamp) { 1412107291Skeramida t = _long_to_time(rule->timestamp); 141398943Sluigi 141498943Sluigi strcpy(timestr, ctime(&t)); 141598943Sluigi *strchr(timestr, '\n') = '\0'; 141698943Sluigi printf("%s ", timestr); 141798943Sluigi } else { 1418107291Skeramida printf("%*s", twidth, " "); 141998943Sluigi } 142098943Sluigi } 142198943Sluigi 1422101628Sluigi if (show_sets) 1423101628Sluigi printf("set %d ", rule->set); 1424101628Sluigi 142598943Sluigi /* 1426107289Sluigi * print the optional "match probability" 1427107289Sluigi */ 1428107289Sluigi if (rule->cmd_len > 0) { 1429107289Sluigi cmd = rule->cmd ; 1430107289Sluigi if (cmd->opcode == O_PROB) { 1431107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1432107289Sluigi double d = 1.0 * p->d[0]; 1433107289Sluigi 1434107289Sluigi d = (d / 0x7fffffff); 1435107289Sluigi printf("prob %f ", d); 1436107289Sluigi } 1437107289Sluigi } 1438107289Sluigi 1439107289Sluigi /* 144098943Sluigi * first print actions 144198943Sluigi */ 144298943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 144398943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 144498943Sluigi switch(cmd->opcode) { 144598943Sluigi case O_CHECK_STATE: 144698943Sluigi printf("check-state"); 1447102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 144898943Sluigi break; 144998943Sluigi 145098943Sluigi case O_ACCEPT: 145198943Sluigi printf("allow"); 145298943Sluigi break; 145398943Sluigi 145498943Sluigi case O_COUNT: 145598943Sluigi printf("count"); 145698943Sluigi break; 145798943Sluigi 145898943Sluigi case O_DENY: 145998943Sluigi printf("deny"); 146098943Sluigi break; 146198943Sluigi 146299475Sluigi case O_REJECT: 146399475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 146499475Sluigi printf("reset"); 146599475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 146699475Sluigi printf("reject"); 146799475Sluigi else 146899475Sluigi print_reject_code(cmd->arg1); 146999475Sluigi break; 147099475Sluigi 1471149020Sbz case O_UNREACH6: 1472149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1473149020Sbz printf("reset6"); 1474149020Sbz else 1475149020Sbz print_unreach6_code(cmd->arg1); 1476149020Sbz break; 1477149020Sbz 1478153374Sglebius#define PRINT_WITH_ARG(o) \ 1479153374Sglebius if (cmd->arg1 == IP_FW_TABLEARG) \ 1480153374Sglebius printf("%s tablearg", (o)); \ 1481153374Sglebius else \ 1482153374Sglebius printf("%s %u", (o), cmd->arg1); \ 148398943Sluigi break; 148498943Sluigi 1485153374Sglebius case O_SKIPTO: 1486153374Sglebius PRINT_WITH_ARG("skipto"); 148798943Sluigi case O_PIPE: 1488153374Sglebius PRINT_WITH_ARG("pipe"); 148998943Sluigi case O_QUEUE: 1490153374Sglebius PRINT_WITH_ARG("queue"); 149198943Sluigi case O_DIVERT: 1492153374Sglebius PRINT_WITH_ARG("divert"); 149398943Sluigi case O_TEE: 1494153374Sglebius PRINT_WITH_ARG("tee"); 1495141351Sglebius case O_NETGRAPH: 1496153374Sglebius PRINT_WITH_ARG("netgraph"); 1497141351Sglebius case O_NGTEE: 1498153374Sglebius PRINT_WITH_ARG("ngtee"); 1499153374Sglebius#undef PRINT_WITH_ARG 1500141351Sglebius 150198943Sluigi case O_FORWARD_IP: 150298943Sluigi { 150398943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 150498943Sluigi 150598943Sluigi printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 150698943Sluigi if (s->sa.sin_port) 1507103241Sluigi printf(",%d", s->sa.sin_port); 150898943Sluigi } 150998943Sluigi break; 151098943Sluigi 151198943Sluigi case O_LOG: /* O_LOG is printed last */ 151298943Sluigi logptr = (ipfw_insn_log *)cmd; 151398943Sluigi break; 151498943Sluigi 1515136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1516136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1517136071Sgreen break; 1518136071Sgreen 1519158879Soleg case O_TAG: 1520158879Soleg tagptr = cmd; 1521158879Soleg break; 1522158879Soleg 152398943Sluigi default: 1524136071Sgreen printf("** unrecognized action %d len %d ", 152598943Sluigi cmd->opcode, cmd->len); 152698943Sluigi } 152798943Sluigi } 152898943Sluigi if (logptr) { 152998943Sluigi if (logptr->max_log > 0) 153099909Sluigi printf(" log logamount %d", logptr->max_log); 153198943Sluigi else 153299909Sluigi printf(" log"); 153398943Sluigi } 1534136071Sgreen if (altqptr) { 1535136071Sgreen const char *qname; 1536102087Sluigi 1537136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1538136071Sgreen if (qname == NULL) 1539136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1540136071Sgreen else 1541136071Sgreen printf(" altq %s", qname); 1542136071Sgreen } 1543158879Soleg if (tagptr) { 1544158879Soleg if (tagptr->len & F_NOT) 1545158879Soleg printf(" untag %hu", tagptr->arg1); 1546158879Soleg else 1547158879Soleg printf(" tag %hu", tagptr->arg1); 1548158879Soleg } 1549136071Sgreen 155098943Sluigi /* 1551102087Sluigi * then print the body. 155298943Sluigi */ 1553146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1554146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1555146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1556146894Smlaier continue; 1557146894Smlaier if (cmd->opcode == O_IP4) { 1558146894Smlaier flags |= HAVE_PROTO4; 1559146894Smlaier break; 1560146894Smlaier } else if (cmd->opcode == O_IP6) { 1561146894Smlaier flags |= HAVE_PROTO6; 1562146894Smlaier break; 1563146894Smlaier } 1564146894Smlaier } 1565102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1566146894Smlaier if (!do_compact) { 1567146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1568146894Smlaier printf(" from any to any"); 1569146894Smlaier } 1570102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1571102087Sluigi } 1572102087Sluigi 1573123495Sluigi if (comment_only) 1574123495Sluigi comment = "..."; 1575123495Sluigi 157698943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 157798943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 157899475Sluigi /* useful alias */ 157999475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 158098943Sluigi 1581123495Sluigi if (comment_only) { 1582123495Sluigi if (cmd->opcode != O_NOP) 1583123495Sluigi continue; 1584123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1585123495Sluigi return; 1586123495Sluigi } 1587123495Sluigi 1588102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1589102087Sluigi 159098943Sluigi switch(cmd->opcode) { 1591117577Sluigi case O_PROB: 1592107289Sluigi break; /* done already */ 1593107289Sluigi 159498943Sluigi case O_PROBE_STATE: 159598943Sluigi break; /* no need to print anything here */ 159698943Sluigi 159798943Sluigi case O_MACADDR2: { 159898943Sluigi ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1599102087Sluigi 1600102087Sluigi if ((cmd->len & F_OR) && !or_block) 1601102087Sluigi printf(" {"); 160298943Sluigi if (cmd->len & F_NOT) 160398943Sluigi printf(" not"); 1604102087Sluigi printf(" MAC"); 1605102087Sluigi flags |= HAVE_MAC; 1606117577Sluigi print_mac(m->addr, m->mask); 1607117577Sluigi print_mac(m->addr + 6, m->mask + 6); 160898943Sluigi } 160998943Sluigi break; 161098943Sluigi 161198943Sluigi case O_MAC_TYPE: 1612102087Sluigi if ((cmd->len & F_OR) && !or_block) 1613102087Sluigi printf(" {"); 1614102087Sluigi print_newports((ipfw_insn_u16 *)cmd, IPPROTO_ETHERTYPE, 1615102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 1616102087Sluigi flags |= HAVE_MAC | HAVE_MACTYPE | HAVE_OPTIONS; 161798943Sluigi break; 161898943Sluigi 161998943Sluigi case O_IP_SRC: 1620130281Sru case O_IP_SRC_LOOKUP: 162198943Sluigi case O_IP_SRC_MASK: 162298943Sluigi case O_IP_SRC_ME: 162398943Sluigi case O_IP_SRC_SET: 1624102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 162598943Sluigi if (!(flags & HAVE_SRCIP)) 162698943Sluigi printf(" from"); 162798943Sluigi if ((cmd->len & F_OR) && !or_block) 162898943Sluigi printf(" {"); 1629102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1630102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 163198943Sluigi flags |= HAVE_SRCIP; 163298943Sluigi break; 163398943Sluigi 163498943Sluigi case O_IP_DST: 1635130281Sru case O_IP_DST_LOOKUP: 163698943Sluigi case O_IP_DST_MASK: 163798943Sluigi case O_IP_DST_ME: 163898943Sluigi case O_IP_DST_SET: 1639102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 164098943Sluigi if (!(flags & HAVE_DSTIP)) 164198943Sluigi printf(" to"); 164298943Sluigi if ((cmd->len & F_OR) && !or_block) 164398943Sluigi printf(" {"); 1644102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1645102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 164698943Sluigi flags |= HAVE_DSTIP; 164798943Sluigi break; 164898943Sluigi 1649145246Sbrooks case O_IP6_SRC: 1650145246Sbrooks case O_IP6_SRC_MASK: 1651145246Sbrooks case O_IP6_SRC_ME: 1652147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1653145246Sbrooks if (!(flags & HAVE_SRCIP)) 1654145246Sbrooks printf(" from"); 1655145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1656145246Sbrooks printf(" {"); 1657145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1658145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1659145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1660145246Sbrooks break; 1661145246Sbrooks 1662145246Sbrooks case O_IP6_DST: 1663145246Sbrooks case O_IP6_DST_MASK: 1664145246Sbrooks case O_IP6_DST_ME: 1665145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1666145246Sbrooks if (!(flags & HAVE_DSTIP)) 1667145246Sbrooks printf(" to"); 1668145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1669145246Sbrooks printf(" {"); 1670145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1671145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1672145246Sbrooks flags |= HAVE_DSTIP; 1673145246Sbrooks break; 1674145246Sbrooks 1675145246Sbrooks case O_FLOW6ID: 1676145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1677145246Sbrooks flags |= HAVE_OPTIONS; 1678145246Sbrooks break; 1679145246Sbrooks 168098943Sluigi case O_IP_DSTPORT: 1681102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 168298943Sluigi case O_IP_SRCPORT: 1683102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1684101641Sluigi if ((cmd->len & F_OR) && !or_block) 1685101641Sluigi printf(" {"); 1686102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1687102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 168898943Sluigi break; 168998943Sluigi 169098943Sluigi case O_PROTO: { 1691145246Sbrooks struct protoent *pe = NULL; 169298943Sluigi 169398943Sluigi if ((cmd->len & F_OR) && !or_block) 169498943Sluigi printf(" {"); 169598943Sluigi if (cmd->len & F_NOT) 169698943Sluigi printf(" not"); 169798943Sluigi proto = cmd->arg1; 1698145567Sbrooks pe = getprotobynumber(cmd->arg1); 1699146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1700146894Smlaier !(flags & HAVE_PROTO)) 1701146894Smlaier show_prerequisites(&flags, 1702146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1703102087Sluigi if (flags & HAVE_OPTIONS) 1704102087Sluigi printf(" proto"); 170598943Sluigi if (pe) 170698943Sluigi printf(" %s", pe->p_name); 170798943Sluigi else 170898943Sluigi printf(" %u", cmd->arg1); 170998943Sluigi } 171098943Sluigi flags |= HAVE_PROTO; 171198943Sluigi break; 1712106505Smaxim 171398943Sluigi default: /*options ... */ 1714146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1715146894Smlaier if (((cmd->opcode == O_IP6) && 1716146894Smlaier (flags & HAVE_PROTO6)) || 1717146894Smlaier ((cmd->opcode == O_IP4) && 1718146894Smlaier (flags & HAVE_PROTO4))) 1719146894Smlaier break; 1720102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 172198943Sluigi if ((cmd->len & F_OR) && !or_block) 172298943Sluigi printf(" {"); 172398943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 172498943Sluigi printf(" not"); 172598943Sluigi switch(cmd->opcode) { 172698943Sluigi case O_FRAG: 172798943Sluigi printf(" frag"); 172898943Sluigi break; 172998943Sluigi 173098943Sluigi case O_IN: 173198943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 173298943Sluigi break; 173398943Sluigi 1734136073Sgreen case O_DIVERTED: 1735136073Sgreen switch (cmd->arg1) { 1736136073Sgreen case 3: 1737136073Sgreen printf(" diverted"); 1738136073Sgreen break; 1739136073Sgreen case 1: 1740136073Sgreen printf(" diverted-loopback"); 1741136073Sgreen break; 1742136073Sgreen case 2: 1743136073Sgreen printf(" diverted-output"); 1744136073Sgreen break; 1745136073Sgreen default: 1746136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1747136073Sgreen break; 1748136073Sgreen } 1749136073Sgreen break; 1750136073Sgreen 175198943Sluigi case O_LAYER2: 175298943Sluigi printf(" layer2"); 175398943Sluigi break; 175498943Sluigi case O_XMIT: 175598943Sluigi case O_RECV: 1756140423Sglebius case O_VIA: 1757140423Sglebius { 1758117469Sluigi char const *s; 175998943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 176098943Sluigi 176198943Sluigi if (cmd->opcode == O_XMIT) 176298943Sluigi s = "xmit"; 176398943Sluigi else if (cmd->opcode == O_RECV) 176498943Sluigi s = "recv"; 1765117469Sluigi else /* if (cmd->opcode == O_VIA) */ 176698943Sluigi s = "via"; 176798943Sluigi if (cmdif->name[0] == '\0') 176899475Sluigi printf(" %s %s", s, 176999475Sluigi inet_ntoa(cmdif->p.ip)); 1770140423Sglebius else 1771140423Sglebius printf(" %s %s", s, cmdif->name); 1772140423Sglebius 177398943Sluigi break; 1774140423Sglebius } 177598943Sluigi case O_IPID: 1776116690Sluigi if (F_LEN(cmd) == 1) 1777116690Sluigi printf(" ipid %u", cmd->arg1 ); 1778116690Sluigi else 1779116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1780116690Sluigi O_IPID); 178198943Sluigi break; 178298943Sluigi 178398943Sluigi case O_IPTTL: 1784116690Sluigi if (F_LEN(cmd) == 1) 1785116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1786116690Sluigi else 1787116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1788116690Sluigi O_IPTTL); 178998943Sluigi break; 179098943Sluigi 179198943Sluigi case O_IPVER: 179298943Sluigi printf(" ipver %u", cmd->arg1 ); 179398943Sluigi break; 179498943Sluigi 179599475Sluigi case O_IPPRECEDENCE: 179699475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 179799475Sluigi break; 179899475Sluigi 179998943Sluigi case O_IPLEN: 1800116690Sluigi if (F_LEN(cmd) == 1) 1801116690Sluigi printf(" iplen %u", cmd->arg1 ); 1802116690Sluigi else 1803116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1804116690Sluigi O_IPLEN); 180598943Sluigi break; 180698943Sluigi 1807101116Sluigi case O_IPOPT: 180898943Sluigi print_flags("ipoptions", cmd, f_ipopts); 180998943Sluigi break; 181098943Sluigi 181199475Sluigi case O_IPTOS: 181299475Sluigi print_flags("iptos", cmd, f_iptos); 181399475Sluigi break; 181499475Sluigi 181599475Sluigi case O_ICMPTYPE: 181699475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 181799475Sluigi break; 181899475Sluigi 181998943Sluigi case O_ESTAB: 182098943Sluigi printf(" established"); 182198943Sluigi break; 182298943Sluigi 1823136075Sgreen case O_TCPDATALEN: 1824136075Sgreen if (F_LEN(cmd) == 1) 1825136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1826136075Sgreen else 1827136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1828136075Sgreen O_TCPDATALEN); 1829136075Sgreen break; 1830136075Sgreen 183198943Sluigi case O_TCPFLAGS: 183298943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 183398943Sluigi break; 183498943Sluigi 183598943Sluigi case O_TCPOPTS: 183698943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 183798943Sluigi break; 183898943Sluigi 183998943Sluigi case O_TCPWIN: 184098943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 184198943Sluigi break; 184298943Sluigi 184398943Sluigi case O_TCPACK: 184498943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 184598943Sluigi break; 184698943Sluigi 184798943Sluigi case O_TCPSEQ: 184898943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 184998943Sluigi break; 185098943Sluigi 185198943Sluigi case O_UID: 185298943Sluigi { 185398943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 185498943Sluigi 185598943Sluigi if (pwd) 185698943Sluigi printf(" uid %s", pwd->pw_name); 185798943Sluigi else 185898943Sluigi printf(" uid %u", cmd32->d[0]); 185998943Sluigi } 186098943Sluigi break; 186198943Sluigi 186298943Sluigi case O_GID: 186398943Sluigi { 186498943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 186598943Sluigi 186698943Sluigi if (grp) 186798943Sluigi printf(" gid %s", grp->gr_name); 186898943Sluigi else 186998943Sluigi printf(" gid %u", cmd32->d[0]); 187098943Sluigi } 187198943Sluigi break; 187298943Sluigi 1873133600Scsjp case O_JAIL: 1874133600Scsjp printf(" jail %d", cmd32->d[0]); 1875133600Scsjp break; 1876133600Scsjp 1877112250Scjc case O_VERREVPATH: 1878112250Scjc printf(" verrevpath"); 1879112250Scjc break; 1880116919Sluigi 1881128575Sandre case O_VERSRCREACH: 1882128575Sandre printf(" versrcreach"); 1883128575Sandre break; 1884128575Sandre 1885133387Sandre case O_ANTISPOOF: 1886133387Sandre printf(" antispoof"); 1887133387Sandre break; 1888133387Sandre 1889117241Sluigi case O_IPSEC: 1890117241Sluigi printf(" ipsec"); 1891117241Sluigi break; 1892117241Sluigi 1893117469Sluigi case O_NOP: 1894117626Sluigi comment = (char *)(cmd + 1); 1895117469Sluigi break; 1896117469Sluigi 189798943Sluigi case O_KEEP_STATE: 189898943Sluigi printf(" keep-state"); 189998943Sluigi break; 190098943Sluigi 190198943Sluigi case O_LIMIT: 190298943Sluigi { 190398943Sluigi struct _s_x *p = limit_masks; 190498943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1905117328Sluigi uint8_t x = c->limit_mask; 1906117469Sluigi char const *comma = " "; 190798943Sluigi 190898943Sluigi printf(" limit"); 1909117577Sluigi for (; p->x != 0 ; p++) 191099909Sluigi if ((x & p->x) == p->x) { 191198943Sluigi x &= ~p->x; 191298943Sluigi printf("%s%s", comma, p->s); 191398943Sluigi comma = ","; 191498943Sluigi } 191598943Sluigi printf(" %d", c->conn_limit); 191698943Sluigi } 191798943Sluigi break; 191898943Sluigi 1919146894Smlaier case O_IP6: 1920152923Sume printf(" ip6"); 1921145246Sbrooks break; 1922145246Sbrooks 1923146894Smlaier case O_IP4: 1924152923Sume printf(" ip4"); 1925146894Smlaier break; 1926146894Smlaier 1927145246Sbrooks case O_ICMP6TYPE: 1928145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 1929145246Sbrooks break; 1930145246Sbrooks 1931145246Sbrooks case O_EXT_HDR: 1932145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 1933145246Sbrooks break; 1934145246Sbrooks 1935158879Soleg case O_TAGGED: 1936158879Soleg if (F_LEN(cmd) == 1) 1937158879Soleg printf(" tagged %hu", cmd->arg1 ); 1938158879Soleg else 1939158879Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 1940158879Soleg O_TAGGED); 1941158879Soleg break; 1942158879Soleg 194398943Sluigi default: 194498943Sluigi printf(" [opcode %d len %d]", 194598943Sluigi cmd->opcode, cmd->len); 194698943Sluigi } 194798943Sluigi } 194898943Sluigi if (cmd->len & F_OR) { 194998943Sluigi printf(" or"); 195098943Sluigi or_block = 1; 195198943Sluigi } else if (or_block) { 195298943Sluigi printf(" }"); 195398943Sluigi or_block = 0; 195498943Sluigi } 195598943Sluigi } 1956102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 1957117626Sluigi if (comment) 1958117626Sluigi printf(" // %s", comment); 195998943Sluigi printf("\n"); 196098943Sluigi} 196198943Sluigi 196298943Sluigistatic void 1963112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 196498943Sluigi{ 196598943Sluigi struct protoent *pe; 196698943Sluigi struct in_addr a; 1967115793Sticso uint16_t rulenum; 1968159160Smlaier char buf[INET6_ADDRSTRLEN]; 196998943Sluigi 197098943Sluigi if (!do_expired) { 197198943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 197298943Sluigi return; 197398943Sluigi } 1974115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1975117328Sluigi printf("%05d", rulenum); 1976117469Sluigi if (pcwidth>0 || bcwidth>0) 1977117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 1978117328Sluigi align_uint64(&d->pcnt), bcwidth, 1979117328Sluigi align_uint64(&d->bcnt), d->expire); 198098943Sluigi switch (d->dyn_type) { 198198943Sluigi case O_LIMIT_PARENT: 198298943Sluigi printf(" PARENT %d", d->count); 198398943Sluigi break; 198498943Sluigi case O_LIMIT: 198598943Sluigi printf(" LIMIT"); 198698943Sluigi break; 198798943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1988106505Smaxim printf(" STATE"); 198998943Sluigi break; 199098943Sluigi } 199198943Sluigi 199298943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 199398943Sluigi printf(" %s", pe->p_name); 199498943Sluigi else 199598943Sluigi printf(" proto %u", d->id.proto); 199698943Sluigi 1997159160Smlaier if (d->id.addr_type == 4) { 1998159160Smlaier a.s_addr = htonl(d->id.src_ip); 1999159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 200098943Sluigi 2001159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2002159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2003159160Smlaier } else if (d->id.addr_type == 6) { 2004159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2005159160Smlaier sizeof(buf)), d->id.src_port); 2006159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2007159160Smlaier sizeof(buf)), d->id.dst_port); 2008159160Smlaier } else 2009159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2010159160Smlaier 201198943Sluigi printf("\n"); 201298943Sluigi} 201398943Sluigi 2014117469Sluigistatic int 201598943Sluigisort_q(const void *pa, const void *pb) 201698943Sluigi{ 201798943Sluigi int rev = (do_sort < 0); 201898943Sluigi int field = rev ? -do_sort : do_sort; 201998943Sluigi long long res = 0; 202098943Sluigi const struct dn_flow_queue *a = pa; 202198943Sluigi const struct dn_flow_queue *b = pb; 202298943Sluigi 202398943Sluigi switch (field) { 202498943Sluigi case 1: /* pkts */ 202598943Sluigi res = a->len - b->len; 202698943Sluigi break; 202798943Sluigi case 2: /* bytes */ 202898943Sluigi res = a->len_bytes - b->len_bytes; 202998943Sluigi break; 203098943Sluigi 203198943Sluigi case 3: /* tot pkts */ 203298943Sluigi res = a->tot_pkts - b->tot_pkts; 203398943Sluigi break; 203498943Sluigi 203598943Sluigi case 4: /* tot bytes */ 203698943Sluigi res = a->tot_bytes - b->tot_bytes; 203798943Sluigi break; 203898943Sluigi } 203998943Sluigi if (res < 0) 204098943Sluigi res = -1; 204198943Sluigi if (res > 0) 204298943Sluigi res = 1; 204398943Sluigi return (int)(rev ? res : -res); 204498943Sluigi} 204598943Sluigi 204698943Sluigistatic void 204798943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 204898943Sluigi{ 204998943Sluigi int l; 2050145246Sbrooks int index_printed, indexes = 0; 2051145246Sbrooks char buff[255]; 2052145246Sbrooks struct protoent *pe; 205398943Sluigi 205498943Sluigi if (fs->rq_elements == 0) 205598943Sluigi return; 205698943Sluigi 205798943Sluigi if (do_sort != 0) 205898943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2059145246Sbrooks 2060145246Sbrooks /* Print IPv4 flows */ 2061145246Sbrooks index_printed = 0; 206298943Sluigi for (l = 0; l < fs->rq_elements; l++) { 206398943Sluigi struct in_addr ina; 206498943Sluigi 2065145246Sbrooks /* XXX: Should check for IPv4 flows */ 2066145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2067145246Sbrooks continue; 2068145246Sbrooks 2069145246Sbrooks if (!index_printed) { 2070145246Sbrooks index_printed = 1; 2071145246Sbrooks if (indexes > 0) /* currently a no-op */ 2072145246Sbrooks printf("\n"); 2073145246Sbrooks indexes++; 2074145246Sbrooks printf(" " 2075145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2076145246Sbrooks fs->flow_mask.proto, 2077145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2078145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2079145246Sbrooks 2080145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2081145246Sbrooks "____Dest. IP/port____ " 2082145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2083145246Sbrooks } 2084145246Sbrooks 208598943Sluigi printf("%3d ", q[l].hash_slot); 208698943Sluigi pe = getprotobynumber(q[l].id.proto); 208798943Sluigi if (pe) 208898943Sluigi printf("%-4s ", pe->p_name); 208998943Sluigi else 209098943Sluigi printf("%4u ", q[l].id.proto); 2091145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 209298943Sluigi printf("%15s/%-5d ", 209398943Sluigi inet_ntoa(ina), q[l].id.src_port); 209498943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 209598943Sluigi printf("%15s/%-5d ", 209698943Sluigi inet_ntoa(ina), q[l].id.dst_port); 209798943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 209898943Sluigi q[l].tot_pkts, q[l].tot_bytes, 209998943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 210098943Sluigi if (verbose) 210198943Sluigi printf(" S %20qd F %20qd\n", 210298943Sluigi q[l].S, q[l].F); 210398943Sluigi } 2104145246Sbrooks 2105145246Sbrooks /* Print IPv6 flows */ 2106145246Sbrooks index_printed = 0; 2107145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2108145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2109145246Sbrooks continue; 2110145246Sbrooks 2111145246Sbrooks if (!index_printed) { 2112145246Sbrooks index_printed = 1; 2113145246Sbrooks if (indexes > 0) 2114145246Sbrooks printf("\n"); 2115145246Sbrooks indexes++; 2116145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2117145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2118145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2119145246Sbrooks buff, sizeof(buff)); 2120145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2121145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2122145246Sbrooks buff, sizeof(buff) ); 2123145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2124145246Sbrooks 2125145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2126145246Sbrooks "______________Source IPv6/port_______________ " 2127145246Sbrooks "_______________Dest. IPv6/port_______________ " 2128145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2129145246Sbrooks } 2130145246Sbrooks printf("%3d ", q[l].hash_slot); 2131145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2132145246Sbrooks if (pe != NULL) 2133145246Sbrooks printf("%9s ", pe->p_name); 2134145246Sbrooks else 2135145246Sbrooks printf("%9u ", q[l].id.proto); 2136145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2137145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2138145246Sbrooks q[l].id.src_port); 2139145246Sbrooks printf(" %39s/%-5d ", 2140145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2141145246Sbrooks q[l].id.dst_port); 2142145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2143145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2144145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2145145246Sbrooks if (verbose) 2146145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2147145246Sbrooks } 214898943Sluigi} 214998943Sluigi 215098943Sluigistatic void 215198943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 215298943Sluigi{ 215398943Sluigi int l; 215498943Sluigi char qs[30]; 215598943Sluigi char plr[30]; 215698943Sluigi char red[90]; /* Display RED parameters */ 215798943Sluigi 215898943Sluigi l = fs->qsize; 215998943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 216098943Sluigi if (l >= 8192) 216198943Sluigi sprintf(qs, "%d KB", l / 1024); 216298943Sluigi else 216398943Sluigi sprintf(qs, "%d B", l); 216498943Sluigi } else 216598943Sluigi sprintf(qs, "%3d sl.", l); 216698943Sluigi if (fs->plr) 216798943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 216898943Sluigi else 216998943Sluigi plr[0] = '\0'; 217098943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 217198943Sluigi sprintf(red, 217298943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 217398943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 217498943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 217598943Sluigi SCALE_VAL(fs->min_th), 217698943Sluigi SCALE_VAL(fs->max_th), 217798943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 217898943Sluigi else 217998943Sluigi sprintf(red, "droptail"); 218098943Sluigi 218198943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 218298943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 218398943Sluigi} 218498943Sluigi 218598943Sluigistatic void 2186117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 218798943Sluigi{ 2188117469Sluigi int rulenum; 218998943Sluigi void *next = data; 219098943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 219198943Sluigi struct dn_flow_set *fs; 219298943Sluigi struct dn_flow_queue *q; 219398943Sluigi int l; 219498943Sluigi 219598943Sluigi if (ac > 0) 219698943Sluigi rulenum = strtoul(*av++, NULL, 10); 219798943Sluigi else 219898943Sluigi rulenum = 0; 219998943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 220098943Sluigi double b = p->bandwidth; 220198943Sluigi char buf[30]; 220298943Sluigi char prefix[80]; 220398943Sluigi 2204152921Sglebius if (p->next.sle_next != (struct dn_pipe *)DN_IS_PIPE) 220598943Sluigi break; /* done with pipes, now queues */ 220698943Sluigi 220798943Sluigi /* 220898943Sluigi * compute length, as pipe have variable size 220998943Sluigi */ 221098943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2211117469Sluigi next = (char *)p + l; 221298943Sluigi nbytes -= l; 221398943Sluigi 2214134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 221598943Sluigi continue; 221698943Sluigi 221798943Sluigi /* 221898943Sluigi * Print rate (or clocking interface) 221998943Sluigi */ 222098943Sluigi if (p->if_name[0] != '\0') 222198943Sluigi sprintf(buf, "%s", p->if_name); 222298943Sluigi else if (b == 0) 222398943Sluigi sprintf(buf, "unlimited"); 222498943Sluigi else if (b >= 1000000) 222598943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 222698943Sluigi else if (b >= 1000) 222798943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 222898943Sluigi else 222998943Sluigi sprintf(buf, "%7.3f bit/s ", b); 223098943Sluigi 223198943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 223298943Sluigi p->pipe_nr, buf, p->delay); 223398943Sluigi print_flowset_parms(&(p->fs), prefix); 223498943Sluigi if (verbose) 223598943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2236106505Smaxim 223798943Sluigi q = (struct dn_flow_queue *)(p+1); 223898943Sluigi list_queues(&(p->fs), q); 223998943Sluigi } 224098943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 224198943Sluigi char prefix[80]; 224298943Sluigi 2243152921Sglebius if (fs->next.sle_next != (struct dn_flow_set *)DN_IS_QUEUE) 224498943Sluigi break; 224598943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2246117469Sluigi next = (char *)fs + l; 224798943Sluigi nbytes -= l; 2248134225Spjd 2249134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2250134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2251134225Spjd continue; 2252134225Spjd } 2253134225Spjd 225498943Sluigi q = (struct dn_flow_queue *)(fs+1); 225598943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 225698943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 225798943Sluigi print_flowset_parms(fs, prefix); 225898943Sluigi list_queues(fs, q); 225998943Sluigi } 226098943Sluigi} 226198943Sluigi 2262101978Sluigi/* 2263101978Sluigi * This one handles all set-related commands 2264101978Sluigi * ipfw set { show | enable | disable } 2265101978Sluigi * ipfw set swap X Y 2266101978Sluigi * ipfw set move X to Y 2267101978Sluigi * ipfw set move rule X to Y 2268101978Sluigi */ 226998943Sluigistatic void 2270101978Sluigisets_handler(int ac, char *av[]) 2271101978Sluigi{ 2272117328Sluigi uint32_t set_disable, masks[2]; 2273101978Sluigi int i, nbytes; 2274117328Sluigi uint16_t rulenum; 2275117328Sluigi uint8_t cmd, new_set; 2276101978Sluigi 2277101978Sluigi ac--; 2278101978Sluigi av++; 2279101978Sluigi 2280101978Sluigi if (!ac) 2281101978Sluigi errx(EX_USAGE, "set needs command"); 2282140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2283101978Sluigi void *data; 2284117469Sluigi char const *msg; 2285101978Sluigi 2286101978Sluigi nbytes = sizeof(struct ip_fw); 2287117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2288117328Sluigi err(EX_OSERR, "calloc"); 2289119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2290101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2291115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2292115793Sticso &set_disable, sizeof(set_disable)); 2293101978Sluigi 2294117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2295117577Sluigi if ((set_disable & (1<<i))) { 2296101978Sluigi printf("%s %d", msg, i); 2297101978Sluigi msg = ""; 2298101978Sluigi } 2299101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2300117655Sluigi for (i = 0; i < RESVD_SET; i++) 2301117577Sluigi if (!(set_disable & (1<<i))) { 2302101978Sluigi printf("%s %d", msg, i); 2303101978Sluigi msg = ""; 2304101978Sluigi } 2305101978Sluigi printf("\n"); 2306140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2307101978Sluigi ac--; av++; 2308101978Sluigi if (ac != 2) 2309101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2310101978Sluigi rulenum = atoi(av[0]); 2311101978Sluigi new_set = atoi(av[1]); 2312117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2313101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2314117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2315101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2316101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2317117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2318140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2319101978Sluigi ac--; av++; 2320140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2321101978Sluigi cmd = 2; 2322101978Sluigi ac--; av++; 2323101978Sluigi } else 2324101978Sluigi cmd = 3; 2325140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2326101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2327101978Sluigi rulenum = atoi(av[0]); 2328101978Sluigi new_set = atoi(av[2]); 2329117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2330101978Sluigi (cmd == 2 && rulenum == 65535) ) 2331101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2332117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2333101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2334101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2335117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2336140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2337140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2338140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2339101978Sluigi 2340101978Sluigi ac--; av++; 2341101978Sluigi masks[0] = masks[1] = 0; 2342101978Sluigi 2343101978Sluigi while (ac) { 2344101978Sluigi if (isdigit(**av)) { 2345101978Sluigi i = atoi(*av); 2346117655Sluigi if (i < 0 || i > RESVD_SET) 2347101978Sluigi errx(EX_DATAERR, 2348101978Sluigi "invalid set number %d\n", i); 2349101978Sluigi masks[which] |= (1<<i); 2350140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2351101978Sluigi which = 0; 2352140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2353101978Sluigi which = 1; 2354101978Sluigi else 2355101978Sluigi errx(EX_DATAERR, 2356101978Sluigi "invalid set command %s\n", *av); 2357101978Sluigi av++; ac--; 2358101978Sluigi } 2359101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2360101978Sluigi errx(EX_DATAERR, 2361101978Sluigi "cannot enable and disable the same set\n"); 2362101978Sluigi 2363117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2364101978Sluigi if (i) 2365101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2366101978Sluigi } else 2367101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2368101978Sluigi} 2369101978Sluigi 2370101978Sluigistatic void 2371109126Sdillonsysctl_handler(int ac, char *av[], int which) 2372109126Sdillon{ 2373109126Sdillon ac--; 2374109126Sdillon av++; 2375109126Sdillon 2376119668Smaxim if (ac == 0) { 2377109126Sdillon warnx("missing keyword to enable/disable\n"); 2378140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2379116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2380116770Sluigi &which, sizeof(which)); 2381140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2382116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2383116770Sluigi &which, sizeof(which)); 2384140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2385116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2386116770Sluigi &which, sizeof(which)); 2387140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2388116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2389116770Sluigi &which, sizeof(which)); 2390140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2391116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2392116770Sluigi &which, sizeof(which)); 2393140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2394136071Sgreen altq_set_enabled(which); 2395109126Sdillon } else { 2396109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2397109126Sdillon } 2398109126Sdillon} 2399109126Sdillon 2400109126Sdillonstatic void 2401117469Sluigilist(int ac, char *av[], int show_counters) 240298943Sluigi{ 240398943Sluigi struct ip_fw *r; 240498943Sluigi ipfw_dyn_rule *dynrules, *d; 240598943Sluigi 2406117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2407117469Sluigi char *lim; 2408117469Sluigi void *data = NULL; 2409112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 241098943Sluigi int exitval = EX_OK; 241198943Sluigi int lac; 241298943Sluigi char **lav; 2413117469Sluigi u_long rnum, last; 241498943Sluigi char *endptr; 241598943Sluigi int seen = 0; 241698943Sluigi 241798943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 241898943Sluigi int nalloc = 1024; /* start somewhere... */ 241998943Sluigi 2420135036Smaxim last = 0; 2421135036Smaxim 2422117328Sluigi if (test_only) { 2423117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2424117328Sluigi return; 2425117328Sluigi } 2426117328Sluigi 242798943Sluigi ac--; 242898943Sluigi av++; 242998943Sluigi 243098943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 243198943Sluigi nbytes = nalloc; 243298943Sluigi 243398943Sluigi while (nbytes >= nalloc) { 243498943Sluigi nalloc = nalloc * 2 + 200; 243598943Sluigi nbytes = nalloc; 243698943Sluigi if ((data = realloc(data, nbytes)) == NULL) 243798943Sluigi err(EX_OSERR, "realloc"); 2438119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 243998943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 244098943Sluigi do_pipe ? "DUMMYNET" : "FW"); 244198943Sluigi } 244298943Sluigi 244398943Sluigi if (do_pipe) { 244498943Sluigi list_pipes(data, nbytes, ac, av); 244598943Sluigi goto done; 244698943Sluigi } 244798943Sluigi 244898943Sluigi /* 244998943Sluigi * Count static rules. They have variable size so we 245098943Sluigi * need to scan the list to count them. 245198943Sluigi */ 2452117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2453117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2454117469Sluigi ++nstat, r = NEXT(r) ) 245598943Sluigi ; /* nothing */ 245698943Sluigi 245798943Sluigi /* 245898943Sluigi * Count dynamic rules. This is easier as they have 245998943Sluigi * fixed size. 246098943Sluigi */ 2461117469Sluigi r = NEXT(r); 246298943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2463117469Sluigi n = (char *)r - (char *)data; 246498943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 246598943Sluigi 2466112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2467112189Smaxim bcwidth = pcwidth = 0; 2468117469Sluigi if (show_counters) { 2469117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2470112189Smaxim /* packet counter */ 2471115793Sticso width = snprintf(NULL, 0, "%llu", 2472115793Sticso align_uint64(&r->pcnt)); 2473112189Smaxim if (width > pcwidth) 2474112189Smaxim pcwidth = width; 2475112189Smaxim 2476112189Smaxim /* byte counter */ 2477115793Sticso width = snprintf(NULL, 0, "%llu", 2478115793Sticso align_uint64(&r->bcnt)); 2479112189Smaxim if (width > bcwidth) 2480112189Smaxim bcwidth = width; 2481112189Smaxim } 2482112189Smaxim } 2483112189Smaxim if (do_dynamic && ndyn) { 2484112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2485115793Sticso width = snprintf(NULL, 0, "%llu", 2486115793Sticso align_uint64(&d->pcnt)); 2487112189Smaxim if (width > pcwidth) 2488112189Smaxim pcwidth = width; 2489112189Smaxim 2490115793Sticso width = snprintf(NULL, 0, "%llu", 2491115793Sticso align_uint64(&d->bcnt)); 2492112189Smaxim if (width > bcwidth) 2493112189Smaxim bcwidth = width; 2494112189Smaxim } 2495112189Smaxim } 249698943Sluigi /* if no rule numbers were specified, list all rules */ 249798943Sluigi if (ac == 0) { 2498117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 2499112189Smaxim show_ipfw(r, pcwidth, bcwidth); 250098943Sluigi 250198943Sluigi if (do_dynamic && ndyn) { 250298943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 250398943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 2504112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 250598943Sluigi } 250698943Sluigi goto done; 250798943Sluigi } 250898943Sluigi 250998943Sluigi /* display specific rules requested on command line */ 251098943Sluigi 251198943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 251298943Sluigi /* convert command line rule # */ 2513117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2514117469Sluigi if (*endptr == '-') 2515117469Sluigi last = strtoul(endptr+1, &endptr, 10); 251698943Sluigi if (*endptr) { 251798943Sluigi exitval = EX_USAGE; 251898943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 251998943Sluigi continue; 252098943Sluigi } 2521117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2522117469Sluigi if (r->rulenum > last) 252398943Sluigi break; 2524117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2525112189Smaxim show_ipfw(r, pcwidth, bcwidth); 252698943Sluigi seen = 1; 252798943Sluigi } 252898943Sluigi } 252998943Sluigi if (!seen) { 253098943Sluigi /* give precedence to other error(s) */ 253198943Sluigi if (exitval == EX_OK) 253298943Sluigi exitval = EX_UNAVAILABLE; 253398943Sluigi warnx("rule %lu does not exist", rnum); 253498943Sluigi } 253598943Sluigi } 253698943Sluigi 253798943Sluigi if (do_dynamic && ndyn) { 253898943Sluigi printf("## Dynamic rules:\n"); 253998943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2540145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2541117469Sluigi if (*endptr == '-') 2542117469Sluigi last = strtoul(endptr+1, &endptr, 10); 254398943Sluigi if (*endptr) 254498943Sluigi /* already warned */ 254598943Sluigi continue; 254698943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2547115793Sticso uint16_t rulenum; 2548115793Sticso 2549115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2550115793Sticso if (rulenum > rnum) 255198943Sluigi break; 2552117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2553112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 255498943Sluigi } 255598943Sluigi } 255698943Sluigi } 255798943Sluigi 255898943Sluigi ac = 0; 255998943Sluigi 256098943Sluigidone: 256198943Sluigi free(data); 256298943Sluigi 256398943Sluigi if (exitval != EX_OK) 256498943Sluigi exit(exitval); 2565117469Sluigi#undef NEXT 256698943Sluigi} 256798943Sluigi 256898943Sluigistatic void 256998943Sluigishow_usage(void) 257098943Sluigi{ 257198943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 257298943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 257398943Sluigi); 257498943Sluigi exit(EX_USAGE); 257598943Sluigi} 257698943Sluigi 257798943Sluigistatic void 257898943Sluigihelp(void) 257998943Sluigi{ 2580117328Sluigi fprintf(stderr, 2581117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2582123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2583117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2584117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2585117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2586117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2587130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 258898943Sluigi"\n" 2589136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2590149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2591149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2592149020Sbz" pipe N | queue N\n" 2593136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 259498943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2595145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2596145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2597130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2598145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2599145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2600117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2601117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2602136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2603145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2604145246Sbrooks" {dst-port|src-port} LIST |\n" 2605117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2606117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2607117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2608145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2609117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2610117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2611136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 261298943Sluigi); 261398943Sluigiexit(0); 261498943Sluigi} 261598943Sluigi 261698943Sluigi 261798943Sluigistatic int 261898943Sluigilookup_host (char *host, struct in_addr *ipaddr) 261998943Sluigi{ 262098943Sluigi struct hostent *he; 262198943Sluigi 262298943Sluigi if (!inet_aton(host, ipaddr)) { 262398943Sluigi if ((he = gethostbyname(host)) == NULL) 262498943Sluigi return(-1); 262598943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 262698943Sluigi } 262798943Sluigi return(0); 262898943Sluigi} 262998943Sluigi 263098943Sluigi/* 263198943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 263298943Sluigi * Update length as appropriate. 263398943Sluigi * The following formats are allowed: 263498943Sluigi * me returns O_IP_*_ME 263598943Sluigi * 1.2.3.4 single IP address 263698943Sluigi * 1.2.3.4:5.6.7.8 address:mask 263798943Sluigi * 1.2.3.4/24 address/mask 263898943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2639117328Sluigi * We can have multiple comma-separated address/mask entries. 264098943Sluigi */ 264198943Sluigistatic void 264298943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 264398943Sluigi{ 2644117328Sluigi int len = 0; 2645117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 264698943Sluigi 264798943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 264898943Sluigi 2649140271Sbrooks if (_substrcmp(av, "any") == 0) 265098943Sluigi return; 265198943Sluigi 2652140271Sbrooks if (_substrcmp(av, "me") == 0) { 265398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 265498943Sluigi return; 265598943Sluigi } 265698943Sluigi 2657140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2658130281Sru char *p = strchr(av + 6, ','); 2659130281Sru 2660130281Sru if (p) 2661130281Sru *p++ = '\0'; 2662130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2663130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2664130281Sru if (p) { 2665130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2666130281Sru d[0] = strtoul(p, NULL, 0); 2667130281Sru } else 2668130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2669130281Sru return; 2670130281Sru } 2671130281Sru 2672117328Sluigi while (av) { 2673117328Sluigi /* 2674117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2675117328Sluigi * ',' indicating another address follows, '{' indicating a 2676117328Sluigi * set of addresses of unspecified size. 2677117328Sluigi */ 2678117328Sluigi char *p = strpbrk(av, "/:,{"); 2679117328Sluigi int masklen; 2680117328Sluigi char md; 2681117328Sluigi 268298943Sluigi if (p) { 268398943Sluigi md = *p; 268498943Sluigi *p++ = '\0'; 2685117328Sluigi } else 2686117328Sluigi md = '\0'; 268798943Sluigi 2688117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 268998943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 269098943Sluigi switch (md) { 269198943Sluigi case ':': 2692117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 269398943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 269498943Sluigi break; 269598943Sluigi case '/': 2696117328Sluigi masklen = atoi(p); 2697117328Sluigi if (masklen == 0) 2698117328Sluigi d[1] = htonl(0); /* mask */ 2699117328Sluigi else if (masklen > 32) 270098943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 270198943Sluigi else 2702117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 270398943Sluigi break; 2704117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2705117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2706117328Sluigi *(--p) = md; 2707117328Sluigi break; 2708117328Sluigi 2709117328Sluigi case ',': /* single address plus continuation */ 2710117328Sluigi *(--p) = md; 2711117328Sluigi /* FALLTHROUGH */ 2712117328Sluigi case 0: /* initialization value */ 271398943Sluigi default: 2714117328Sluigi d[1] = htonl(~0); /* force /32 */ 271598943Sluigi break; 271698943Sluigi } 2717117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2718117328Sluigi /* find next separator */ 271998943Sluigi if (p) 2720117328Sluigi p = strpbrk(p, ",{"); 2721117328Sluigi if (p && *p == '{') { 2722117328Sluigi /* 2723117328Sluigi * We have a set of addresses. They are stored as follows: 2724117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2725117328Sluigi * addr is the base address IN HOST FORMAT 2726117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2727117328Sluigi * the next multiple of 32) with bits set 2728117328Sluigi * for each host in the map. 2729117328Sluigi */ 2730117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 273198943Sluigi int low, high; 2732117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 273398943Sluigi 2734117328Sluigi if (len > 0) 2735117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2736117328Sluigi if (i < 24 || i > 31) 2737117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2738117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2739117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 274098943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 274198943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2742101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2743117328Sluigi map[i] = 0; /* clear map */ 274498943Sluigi 2745117328Sluigi av = p + 1; 2746117328Sluigi low = d[0] & 0xff; 274798943Sluigi high = low + cmd->o.arg1 - 1; 2748117328Sluigi /* 2749117328Sluigi * Here, i stores the previous value when we specify a range 2750117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2751117328Sluigi * have no previous value. 2752117328Sluigi */ 2753116716Sluigi i = -1; /* previous value in a range */ 275498943Sluigi while (isdigit(*av)) { 275598943Sluigi char *s; 2756117328Sluigi int a = strtol(av, &s, 0); 275798943Sluigi 2758117328Sluigi if (s == av) { /* no parameter */ 2759117328Sluigi if (*av != '}') 2760117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2761117328Sluigi if (i != -1) 2762117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2763117328Sluigi break; 2764117328Sluigi } 2765117328Sluigi if (a < low || a > high) 2766117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 276798943Sluigi a, low, high); 276898943Sluigi a -= low; 2769116716Sluigi if (i == -1) /* no previous in range */ 2770116716Sluigi i = a; 2771116716Sluigi else { /* check that range is valid */ 2772116716Sluigi if (i > a) 2773116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2774116716Sluigi i+low, a+low); 2775116716Sluigi if (*s == '-') 2776116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2777116716Sluigi } 2778116716Sluigi for (; i <= a; i++) 2779117328Sluigi map[i/32] |= 1<<(i & 31); 2780116716Sluigi i = -1; 2781116716Sluigi if (*s == '-') 2782116716Sluigi i = a; 2783117328Sluigi else if (*s == '}') 2784116716Sluigi break; 278598943Sluigi av = s+1; 278698943Sluigi } 278798943Sluigi return; 278898943Sluigi } 2789117328Sluigi av = p; 2790117328Sluigi if (av) /* then *av must be a ',' */ 2791117328Sluigi av++; 279298943Sluigi 2793117328Sluigi /* Check this entry */ 2794117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2795117328Sluigi /* 2796117328Sluigi * 'any' turns the entire list into a NOP. 2797117328Sluigi * 'not any' never matches, so it is removed from the 2798117328Sluigi * list unless it is the only item, in which case we 2799117328Sluigi * report an error. 2800117328Sluigi */ 2801117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2802117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2803117328Sluigi errx(EX_DATAERR, "not any never matches"); 2804117328Sluigi } 2805117328Sluigi /* else do nothing and skip this entry */ 2806128067Smaxim return; 2807117328Sluigi } 2808117328Sluigi /* A single IP can be stored in an optimized format */ 2809117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 281098943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2811117328Sluigi return; 2812117328Sluigi } 2813117328Sluigi len += 2; /* two words... */ 2814117328Sluigi d += 2; 2815117328Sluigi } /* end while */ 2816117328Sluigi cmd->o.len |= len+1; 281798943Sluigi} 281898943Sluigi 281998943Sluigi 2820145246Sbrooks/* Try to find ipv6 address by hostname */ 2821145246Sbrooksstatic int 2822145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2823145246Sbrooks{ 2824145246Sbrooks struct hostent *he; 2825145246Sbrooks 2826145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2827145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2828145246Sbrooks return(-1); 2829145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2830145246Sbrooks } 2831145246Sbrooks return(0); 2832145246Sbrooks} 2833145246Sbrooks 2834145246Sbrooks 2835145246Sbrooks/* n2mask sets n bits of the mask */ 2836145246Sbrooksstatic void 2837145246Sbrooksn2mask(struct in6_addr *mask, int n) 2838145246Sbrooks{ 2839145246Sbrooks static int minimask[9] = 2840145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2841145246Sbrooks u_char *p; 2842145246Sbrooks 2843145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2844145246Sbrooks p = (u_char *) mask; 2845145246Sbrooks for (; n > 0; p++, n -= 8) { 2846145246Sbrooks if (n >= 8) 2847145246Sbrooks *p = 0xff; 2848145246Sbrooks else 2849145246Sbrooks *p = minimask[n]; 2850145246Sbrooks } 2851145246Sbrooks return; 2852145246Sbrooks} 2853145246Sbrooks 2854145246Sbrooks 285598943Sluigi/* 2856145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2857145246Sbrooks * Update length as appropriate. 2858145246Sbrooks * The following formats are allowed: 2859145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2860145246Sbrooks * me returns O_IP6_*_ME 2861145246Sbrooks * 2862145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2863145246Sbrooks * 03f1::234:123:0342/24 address/mask 2864145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2865145246Sbrooks * 2866145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2867145246Sbrooks * are typically random past the initial prefix. 2868145246Sbrooks * Return 1 on success, 0 on failure. 2869145246Sbrooks */ 2870145246Sbrooksstatic int 2871145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2872145246Sbrooks{ 2873145246Sbrooks int len = 0; 2874145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2875145246Sbrooks /* 2876145246Sbrooks * Needed for multiple address. 2877145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2878145246Sbrooks */ 2879145246Sbrooks 2880145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2881145246Sbrooks 2882145246Sbrooks if (strcmp(av, "any") == 0) 2883145246Sbrooks return (1); 2884145246Sbrooks 2885145246Sbrooks 2886145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2887145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2888145246Sbrooks return (1); 2889145246Sbrooks } 2890145246Sbrooks 2891145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2892145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2893145246Sbrooks return (1); 2894145246Sbrooks } 2895145246Sbrooks 2896145246Sbrooks av = strdup(av); 2897145246Sbrooks while (av) { 2898145246Sbrooks /* 2899145246Sbrooks * After the address we can have '/' indicating a mask, 2900145246Sbrooks * or ',' indicating another address follows. 2901145246Sbrooks */ 2902145246Sbrooks 2903145246Sbrooks char *p; 2904145246Sbrooks int masklen; 2905145246Sbrooks char md = '\0'; 2906145246Sbrooks 2907145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 2908145246Sbrooks md = *p; /* save the separator */ 2909145246Sbrooks *p = '\0'; /* terminate address string */ 2910145246Sbrooks p++; /* and skip past it */ 2911145246Sbrooks } 2912145246Sbrooks /* now p points to NULL, mask or next entry */ 2913145246Sbrooks 2914145246Sbrooks /* lookup stores address in *d as a side effect */ 2915145246Sbrooks if (lookup_host6(av, d) != 0) { 2916145246Sbrooks /* XXX: failed. Free memory and go */ 2917145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 2918145246Sbrooks } 2919145246Sbrooks /* next, look at the mask, if any */ 2920145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 2921145246Sbrooks if (masklen > 128 || masklen < 0) 2922145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 2923145246Sbrooks else 2924145246Sbrooks n2mask(&d[1], masklen); 2925145246Sbrooks 2926145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 2927145246Sbrooks 2928145246Sbrooks /* find next separator */ 2929145246Sbrooks 2930145246Sbrooks if (md == '/') { /* find separator past the mask */ 2931145246Sbrooks p = strpbrk(p, ","); 2932145246Sbrooks if (p != NULL) 2933145246Sbrooks p++; 2934145246Sbrooks } 2935145246Sbrooks av = p; 2936145246Sbrooks 2937145246Sbrooks /* Check this entry */ 2938145246Sbrooks if (masklen == 0) { 2939145246Sbrooks /* 2940145246Sbrooks * 'any' turns the entire list into a NOP. 2941145246Sbrooks * 'not any' never matches, so it is removed from the 2942145246Sbrooks * list unless it is the only item, in which case we 2943145246Sbrooks * report an error. 2944145246Sbrooks */ 2945145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 2946145246Sbrooks errx(EX_DATAERR, "not any never matches"); 2947145246Sbrooks continue; 2948145246Sbrooks } 2949145246Sbrooks 2950145246Sbrooks /* 2951145246Sbrooks * A single IP can be stored alone 2952145246Sbrooks */ 2953145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 2954145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 2955145246Sbrooks break; 2956145246Sbrooks } 2957145246Sbrooks 2958145246Sbrooks /* Update length and pointer to arguments */ 2959145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 2960145246Sbrooks d += 2; 2961145246Sbrooks } /* end while */ 2962145246Sbrooks 2963145246Sbrooks /* 2964145246Sbrooks * Total length of the command, remember that 1 is the size of 2965145246Sbrooks * the base command. 2966145246Sbrooks */ 2967145246Sbrooks cmd->o.len |= len+1; 2968145246Sbrooks free(av); 2969145246Sbrooks return (1); 2970145246Sbrooks} 2971145246Sbrooks 2972145246Sbrooks/* 2973145246Sbrooks * fills command for ipv6 flow-id filtering 2974145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 2975145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 2976145246Sbrooks * additional flow-id we want to filter, the basic is 1 2977145246Sbrooks */ 2978145246Sbrooksvoid 2979145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 2980145246Sbrooks{ 2981145246Sbrooks u_int32_t type; /* Current flow number */ 2982145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 2983145246Sbrooks char *s = av; 2984145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 2985145246Sbrooks 2986145246Sbrooks while (s) { 2987145246Sbrooks av = strsep( &s, ",") ; 2988145246Sbrooks type = strtoul(av, &av, 0); 2989145246Sbrooks if (*av != ',' && *av != '\0') 2990145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2991145246Sbrooks if (type > 0xfffff) 2992145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 2993145246Sbrooks cmd->d[nflow] |= type; 2994145246Sbrooks nflow++; 2995145246Sbrooks } 2996145246Sbrooks if( nflow > 0 ) { 2997145246Sbrooks cmd->o.opcode = O_FLOW6ID; 2998145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 2999145246Sbrooks cmd->o.arg1 = nflow; 3000145246Sbrooks } 3001145246Sbrooks else { 3002145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3003145246Sbrooks } 3004145246Sbrooks} 3005145246Sbrooks 3006145246Sbrooksstatic ipfw_insn * 3007145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3008145246Sbrooks{ 3009145246Sbrooks 3010145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3011145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3012145246Sbrooks ; 3013145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3014145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3015145246Sbrooks } else if (F_LEN(cmd) == 3016145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3017145246Sbrooks /* single IP, no mask*/ 3018145246Sbrooks cmd->opcode = O_IP6_SRC; 3019145246Sbrooks } else { /* addr/mask opt */ 3020145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3021145246Sbrooks } 3022145246Sbrooks return cmd; 3023145246Sbrooks} 3024145246Sbrooks 3025145246Sbrooksstatic ipfw_insn * 3026145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3027145246Sbrooks{ 3028145246Sbrooks 3029145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3030145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 3031145246Sbrooks ; 3032145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3033145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3034145246Sbrooks } else if (F_LEN(cmd) == 3035145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3036145246Sbrooks /* single IP, no mask*/ 3037145246Sbrooks cmd->opcode = O_IP6_DST; 3038145246Sbrooks } else { /* addr/mask opt */ 3039145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3040145246Sbrooks } 3041145246Sbrooks return cmd; 3042145246Sbrooks} 3043145246Sbrooks 3044145246Sbrooks 3045145246Sbrooks/* 304698943Sluigi * helper function to process a set of flags and set bits in the 304798943Sluigi * appropriate masks. 304898943Sluigi */ 304998943Sluigistatic void 305098943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 305198943Sluigi struct _s_x *flags, char *p) 305298943Sluigi{ 3053117328Sluigi uint8_t set=0, clear=0; 305498943Sluigi 305598943Sluigi while (p && *p) { 305698943Sluigi char *q; /* points to the separator */ 305798943Sluigi int val; 3058117328Sluigi uint8_t *which; /* mask we are working on */ 305998943Sluigi 306098943Sluigi if (*p == '!') { 306198943Sluigi p++; 306298943Sluigi which = &clear; 306398943Sluigi } else 306498943Sluigi which = &set; 306598943Sluigi q = strchr(p, ','); 306698943Sluigi if (q) 306798943Sluigi *q++ = '\0'; 306898943Sluigi val = match_token(flags, p); 306998943Sluigi if (val <= 0) 307098943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3071117328Sluigi *which |= (uint8_t)val; 307298943Sluigi p = q; 307398943Sluigi } 307498943Sluigi cmd->opcode = opcode; 307598943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 307698943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 307798943Sluigi} 307898943Sluigi 307998943Sluigi 308098943Sluigistatic void 308198943Sluigidelete(int ac, char *av[]) 308298943Sluigi{ 3083117328Sluigi uint32_t rulenum; 3084117469Sluigi struct dn_pipe p; 308598943Sluigi int i; 308698943Sluigi int exitval = EX_OK; 3087101628Sluigi int do_set = 0; 308898943Sluigi 3089117469Sluigi memset(&p, 0, sizeof p); 309098943Sluigi 309198943Sluigi av++; ac--; 3092130013Scsjp NEED1("missing rule specification"); 3093140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3094101978Sluigi do_set = 1; /* delete set */ 3095101628Sluigi ac--; av++; 3096101978Sluigi } 309798943Sluigi 309898943Sluigi /* Rule number */ 309998943Sluigi while (ac && isdigit(**av)) { 310098943Sluigi i = atoi(*av); av++; ac--; 310198943Sluigi if (do_pipe) { 310298943Sluigi if (do_pipe == 1) 3103117469Sluigi p.pipe_nr = i; 310498943Sluigi else 3105117469Sluigi p.fs.fs_nr = i; 3106117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 310798943Sluigi if (i) { 310898943Sluigi exitval = 1; 310998943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3110117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 311198943Sluigi } 311298943Sluigi } else { 3113101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3114117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 311598943Sluigi if (i) { 311698943Sluigi exitval = EX_UNAVAILABLE; 311798943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 311898943Sluigi rulenum); 311998943Sluigi } 312098943Sluigi } 312198943Sluigi } 312298943Sluigi if (exitval != EX_OK) 312398943Sluigi exit(exitval); 312498943Sluigi} 312598943Sluigi 312698943Sluigi 312798943Sluigi/* 312898943Sluigi * fill the interface structure. We do not check the name as we can 312998943Sluigi * create interfaces dynamically, so checking them at insert time 313098943Sluigi * makes relatively little sense. 3131121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3132121816Sbrooks * patterns which match interfaces. 313398943Sluigi */ 313498943Sluigistatic void 313598943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 313698943Sluigi{ 313798943Sluigi cmd->name[0] = '\0'; 313898943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 313998943Sluigi 314098943Sluigi /* Parse the interface or address */ 3141140271Sbrooks if (strcmp(arg, "any") == 0) 314298943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 314398943Sluigi else if (!isdigit(*arg)) { 3144121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3145121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 314698943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 314798943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 314898943Sluigi} 314998943Sluigi 315098943Sluigistatic void 315198943Sluigiconfig_pipe(int ac, char **av) 315298943Sluigi{ 3153117469Sluigi struct dn_pipe p; 315498943Sluigi int i; 315598943Sluigi char *end; 315698943Sluigi void *par = NULL; 315798943Sluigi 3158117469Sluigi memset(&p, 0, sizeof p); 315998943Sluigi 316098943Sluigi av++; ac--; 316198943Sluigi /* Pipe number */ 316298943Sluigi if (ac && isdigit(**av)) { 316398943Sluigi i = atoi(*av); av++; ac--; 316498943Sluigi if (do_pipe == 1) 3165117469Sluigi p.pipe_nr = i; 316698943Sluigi else 3167117469Sluigi p.fs.fs_nr = i; 316898943Sluigi } 316999475Sluigi while (ac > 0) { 317098943Sluigi double d; 317198943Sluigi int tok = match_token(dummynet_params, *av); 317298943Sluigi ac--; av++; 317398943Sluigi 317498943Sluigi switch(tok) { 3175101978Sluigi case TOK_NOERROR: 3176117469Sluigi p.fs.flags_fs |= DN_NOERROR; 3177101978Sluigi break; 3178101978Sluigi 317998943Sluigi case TOK_PLR: 318098943Sluigi NEED1("plr needs argument 0..1\n"); 318198943Sluigi d = strtod(av[0], NULL); 318298943Sluigi if (d > 1) 318398943Sluigi d = 1; 318498943Sluigi else if (d < 0) 318598943Sluigi d = 0; 3186117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 318798943Sluigi ac--; av++; 318898943Sluigi break; 318998943Sluigi 319098943Sluigi case TOK_QUEUE: 319198943Sluigi NEED1("queue needs queue size\n"); 319298943Sluigi end = NULL; 3193117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 319498943Sluigi if (*end == 'K' || *end == 'k') { 3195117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 3196117469Sluigi p.fs.qsize *= 1024; 3197140271Sbrooks } else if (*end == 'B' || 3198140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 3199117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 320098943Sluigi } 320198943Sluigi ac--; av++; 320298943Sluigi break; 320398943Sluigi 320498943Sluigi case TOK_BUCKETS: 320598943Sluigi NEED1("buckets needs argument\n"); 3206117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 320798943Sluigi ac--; av++; 320898943Sluigi break; 320998943Sluigi 321098943Sluigi case TOK_MASK: 321198943Sluigi NEED1("mask needs mask specifier\n"); 321298943Sluigi /* 321398943Sluigi * per-flow queue, mask is dst_ip, dst_port, 321498943Sluigi * src_ip, src_port, proto measured in bits 321598943Sluigi */ 321698943Sluigi par = NULL; 321798943Sluigi 3218145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 321998943Sluigi end = NULL; 322098943Sluigi 322198943Sluigi while (ac >= 1) { 3222117328Sluigi uint32_t *p32 = NULL; 3223117328Sluigi uint16_t *p16 = NULL; 3224145246Sbrooks uint32_t *p20 = NULL; 3225145246Sbrooks struct in6_addr *pa6 = NULL; 3226145246Sbrooks uint32_t a; 322798943Sluigi 322898943Sluigi tok = match_token(dummynet_params, *av); 322998943Sluigi ac--; av++; 323098943Sluigi switch(tok) { 323198943Sluigi case TOK_ALL: 323298943Sluigi /* 323398943Sluigi * special case, all bits significant 323498943Sluigi */ 3235117469Sluigi p.fs.flow_mask.dst_ip = ~0; 3236117469Sluigi p.fs.flow_mask.src_ip = ~0; 3237117469Sluigi p.fs.flow_mask.dst_port = ~0; 3238117469Sluigi p.fs.flow_mask.src_port = ~0; 3239117469Sluigi p.fs.flow_mask.proto = ~0; 3240145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 3241145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 3242145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 3243117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 324498943Sluigi goto end_mask; 324598943Sluigi 324698943Sluigi case TOK_DSTIP: 3247117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 324898943Sluigi break; 324998943Sluigi 325098943Sluigi case TOK_SRCIP: 3251117469Sluigi p32 = &p.fs.flow_mask.src_ip; 325298943Sluigi break; 325398943Sluigi 3254145246Sbrooks case TOK_DSTIP6: 3255145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 3256145246Sbrooks break; 3257145246Sbrooks 3258145246Sbrooks case TOK_SRCIP6: 3259145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 3260145246Sbrooks break; 3261145246Sbrooks 3262145246Sbrooks case TOK_FLOWID: 3263145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 3264145246Sbrooks break; 3265145246Sbrooks 326698943Sluigi case TOK_DSTPORT: 3267117469Sluigi p16 = &p.fs.flow_mask.dst_port; 326898943Sluigi break; 326998943Sluigi 327098943Sluigi case TOK_SRCPORT: 3271117469Sluigi p16 = &p.fs.flow_mask.src_port; 327298943Sluigi break; 327398943Sluigi 327498943Sluigi case TOK_PROTO: 327598943Sluigi break; 327698943Sluigi 327798943Sluigi default: 327898943Sluigi ac++; av--; /* backtrack */ 327998943Sluigi goto end_mask; 328098943Sluigi } 328198943Sluigi if (ac < 1) 328298943Sluigi errx(EX_USAGE, "mask: value missing"); 328398943Sluigi if (*av[0] == '/') { 328498943Sluigi a = strtoul(av[0]+1, &end, 0); 3285145246Sbrooks if (pa6 == NULL) 3286145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 3287106505Smaxim } else 328899909Sluigi a = strtoul(av[0], &end, 0); 328998943Sluigi if (p32 != NULL) 329098943Sluigi *p32 = a; 329198943Sluigi else if (p16 != NULL) { 3292139821Sbrooks if (a > 0xFFFF) 329398943Sluigi errx(EX_DATAERR, 3294144687Sbrooks "port mask must be 16 bit"); 3295117328Sluigi *p16 = (uint16_t)a; 3296145246Sbrooks } else if (p20 != NULL) { 3297145246Sbrooks if (a > 0xfffff) 3298145246Sbrooks errx(EX_DATAERR, 3299145246Sbrooks "flow_id mask must be 20 bit"); 3300145246Sbrooks *p20 = (uint32_t)a; 3301145246Sbrooks } else if (pa6 != NULL) { 3302145246Sbrooks if (a < 0 || a > 128) 3303145246Sbrooks errx(EX_DATAERR, 3304145246Sbrooks "in6addr invalid mask len"); 3305145246Sbrooks else 3306145246Sbrooks n2mask(pa6, a); 330798943Sluigi } else { 3308139821Sbrooks if (a > 0xFF) 330998943Sluigi errx(EX_DATAERR, 3310144687Sbrooks "proto mask must be 8 bit"); 3311117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 331298943Sluigi } 331398943Sluigi if (a != 0) 3314117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 331598943Sluigi ac--; av++; 331698943Sluigi } /* end while, config masks */ 331798943Sluigiend_mask: 331898943Sluigi break; 331998943Sluigi 332098943Sluigi case TOK_RED: 332198943Sluigi case TOK_GRED: 332298943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 3323117469Sluigi p.fs.flags_fs |= DN_IS_RED; 332498943Sluigi if (tok == TOK_GRED) 3325117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 332698943Sluigi /* 332798943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 332898943Sluigi */ 332998943Sluigi if ((end = strsep(&av[0], "/"))) { 333098943Sluigi double w_q = strtod(end, NULL); 333198943Sluigi if (w_q > 1 || w_q <= 0) 333298943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 3333117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 333498943Sluigi } 333598943Sluigi if ((end = strsep(&av[0], "/"))) { 3336117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 333798943Sluigi if (*end == 'K' || *end == 'k') 3338117469Sluigi p.fs.min_th *= 1024; 333998943Sluigi } 334098943Sluigi if ((end = strsep(&av[0], "/"))) { 3341117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 334298943Sluigi if (*end == 'K' || *end == 'k') 3343117469Sluigi p.fs.max_th *= 1024; 334498943Sluigi } 334598943Sluigi if ((end = strsep(&av[0], "/"))) { 334698943Sluigi double max_p = strtod(end, NULL); 334798943Sluigi if (max_p > 1 || max_p <= 0) 334898943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 3349117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 335098943Sluigi } 335198943Sluigi ac--; av++; 335298943Sluigi break; 335398943Sluigi 335498943Sluigi case TOK_DROPTAIL: 3355117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 335698943Sluigi break; 3357106505Smaxim 335898943Sluigi case TOK_BW: 335998943Sluigi NEED1("bw needs bandwidth or interface\n"); 336098943Sluigi if (do_pipe != 1) 336198943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 336298943Sluigi /* 336398943Sluigi * set clocking interface or bandwidth value 336498943Sluigi */ 336598943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 3366117469Sluigi int l = sizeof(p.if_name)-1; 336798943Sluigi /* interface name */ 3368117469Sluigi strncpy(p.if_name, av[0], l); 3369117469Sluigi p.if_name[l] = '\0'; 3370117469Sluigi p.bandwidth = 0; 337198943Sluigi } else { 3372117469Sluigi p.if_name[0] = '\0'; 3373117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 337498943Sluigi if (*end == 'K' || *end == 'k') { 337598943Sluigi end++; 3376117469Sluigi p.bandwidth *= 1000; 337798943Sluigi } else if (*end == 'M') { 337898943Sluigi end++; 3379117469Sluigi p.bandwidth *= 1000000; 338098943Sluigi } 3381140271Sbrooks if (*end == 'B' || 3382140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 3383117469Sluigi p.bandwidth *= 8; 3384117469Sluigi if (p.bandwidth < 0) 338598943Sluigi errx(EX_DATAERR, "bandwidth too large"); 338698943Sluigi } 338798943Sluigi ac--; av++; 338898943Sluigi break; 338998943Sluigi 339098943Sluigi case TOK_DELAY: 339198943Sluigi if (do_pipe != 1) 339298943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 339398943Sluigi NEED1("delay needs argument 0..10000ms\n"); 3394117469Sluigi p.delay = strtoul(av[0], NULL, 0); 339598943Sluigi ac--; av++; 339698943Sluigi break; 339798943Sluigi 339898943Sluigi case TOK_WEIGHT: 339998943Sluigi if (do_pipe == 1) 340098943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 340198943Sluigi NEED1("weight needs argument 0..100\n"); 3402117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 340398943Sluigi ac--; av++; 340498943Sluigi break; 340598943Sluigi 340698943Sluigi case TOK_PIPE: 340798943Sluigi if (do_pipe == 1) 340898943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 340998943Sluigi NEED1("pipe needs pipe_number\n"); 3410117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 341198943Sluigi ac--; av++; 341298943Sluigi break; 341398943Sluigi 341498943Sluigi default: 3415124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 341698943Sluigi } 341798943Sluigi } 341898943Sluigi if (do_pipe == 1) { 3419117469Sluigi if (p.pipe_nr == 0) 342098943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 3421117469Sluigi if (p.delay > 10000) 342298943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 342398943Sluigi } else { /* do_pipe == 2, queue */ 3424117469Sluigi if (p.fs.parent_nr == 0) 342598943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 3426117469Sluigi if (p.fs.weight >100) 342798943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 342898943Sluigi } 3429117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 3430117469Sluigi if (p.fs.qsize > 1024*1024) 343198943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 343298943Sluigi } else { 3433117469Sluigi if (p.fs.qsize > 100) 343498943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 343598943Sluigi } 3436117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 343798943Sluigi size_t len; 343898943Sluigi int lookup_depth, avg_pkt_size; 343998943Sluigi double s, idle, weight, w_q; 3440117469Sluigi struct clockinfo ck; 344198943Sluigi int t; 344298943Sluigi 3443117469Sluigi if (p.fs.min_th >= p.fs.max_th) 344498943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 3445117469Sluigi p.fs.min_th, p.fs.max_th); 3446117469Sluigi if (p.fs.max_th == 0) 344798943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 344898943Sluigi 344998943Sluigi len = sizeof(int); 345098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 345198943Sluigi &lookup_depth, &len, NULL, 0) == -1) 345298943Sluigi 345398943Sluigi errx(1, "sysctlbyname(\"%s\")", 345498943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 345598943Sluigi if (lookup_depth == 0) 345698943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 345798943Sluigi " must be greater than zero"); 345898943Sluigi 345998943Sluigi len = sizeof(int); 346098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 346198943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 346298943Sluigi 346398943Sluigi errx(1, "sysctlbyname(\"%s\")", 346498943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 346598943Sluigi if (avg_pkt_size == 0) 346698943Sluigi errx(EX_DATAERR, 346798943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 346898943Sluigi " be greater than zero"); 346998943Sluigi 347098943Sluigi len = sizeof(struct clockinfo); 3471117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 347298943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 347398943Sluigi 347498943Sluigi /* 347598943Sluigi * Ticks needed for sending a medium-sized packet. 347698943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 347798943Sluigi * do not have bandwidth information, because that is stored 347898943Sluigi * in the parent pipe, and also we have multiple queues 347998943Sluigi * competing for it. So we set s=0, which is not very 348098943Sluigi * correct. But on the other hand, why do we want RED with 348198943Sluigi * WF2Q+ ? 348298943Sluigi */ 3483117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 348498943Sluigi s = 0; 348598943Sluigi else 3486117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 348798943Sluigi 348898943Sluigi /* 348998943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 349098943Sluigi * NOTA: (3/w_q) is approx the value x so that 349198943Sluigi * (1-w_q)^x < 10^-3. 349298943Sluigi */ 3493117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 349498943Sluigi idle = s * 3. / w_q; 3495117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 3496117469Sluigi if (!p.fs.lookup_step) 3497117469Sluigi p.fs.lookup_step = 1; 349898943Sluigi weight = 1 - w_q; 3499117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 350098943Sluigi weight *= weight; 3501117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 350298943Sluigi } 3503117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 350498943Sluigi if (i) 350598943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 350698943Sluigi} 350798943Sluigi 350898943Sluigistatic void 3509117577Sluigiget_mac_addr_mask(char *p, uint8_t *addr, uint8_t *mask) 351098943Sluigi{ 351198943Sluigi int i, l; 351298943Sluigi 351398943Sluigi for (i=0; i<6; i++) 351498943Sluigi addr[i] = mask[i] = 0; 3515140271Sbrooks if (strcmp(p, "any") == 0) 351698943Sluigi return; 351798943Sluigi 351898943Sluigi for (i=0; *p && i<6;i++, p++) { 351998943Sluigi addr[i] = strtol(p, &p, 16); 352098943Sluigi if (*p != ':') /* we start with the mask */ 352198943Sluigi break; 352298943Sluigi } 352398943Sluigi if (*p == '/') { /* mask len */ 352498943Sluigi l = strtol(p+1, &p, 0); 352598943Sluigi for (i=0; l>0; l -=8, i++) 352698943Sluigi mask[i] = (l >=8) ? 0xff : (~0) << (8-l); 352798943Sluigi } else if (*p == '&') { /* mask */ 352898943Sluigi for (i=0, p++; *p && i<6;i++, p++) { 352998943Sluigi mask[i] = strtol(p, &p, 16); 353098943Sluigi if (*p != ':') 353198943Sluigi break; 353298943Sluigi } 353398943Sluigi } else if (*p == '\0') { 353498943Sluigi for (i=0; i<6; i++) 353598943Sluigi mask[i] = 0xff; 353698943Sluigi } 353798943Sluigi for (i=0; i<6; i++) 353898943Sluigi addr[i] &= mask[i]; 353998943Sluigi} 354098943Sluigi 354198943Sluigi/* 354298943Sluigi * helper function, updates the pointer to cmd with the length 354398943Sluigi * of the current command, and also cleans up the first word of 354498943Sluigi * the new command in case it has been clobbered before. 354598943Sluigi */ 354698943Sluigistatic ipfw_insn * 354798943Sluiginext_cmd(ipfw_insn *cmd) 354898943Sluigi{ 354998943Sluigi cmd += F_LEN(cmd); 355098943Sluigi bzero(cmd, sizeof(*cmd)); 355198943Sluigi return cmd; 355298943Sluigi} 355398943Sluigi 355498943Sluigi/* 3555117469Sluigi * Takes arguments and copies them into a comment 3556117469Sluigi */ 3557117469Sluigistatic void 3558117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 3559117469Sluigi{ 3560117469Sluigi int i, l; 3561117469Sluigi char *p = (char *)(cmd + 1); 3562117577Sluigi 3563117469Sluigi cmd->opcode = O_NOP; 3564117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 3565117469Sluigi 3566117469Sluigi /* Compute length of comment string. */ 3567117469Sluigi for (i = 0, l = 0; i < ac; i++) 3568117469Sluigi l += strlen(av[i]) + 1; 3569117469Sluigi if (l == 0) 3570117469Sluigi return; 3571117469Sluigi if (l > 84) 3572117469Sluigi errx(EX_DATAERR, 3573117469Sluigi "comment too long (max 80 chars)"); 3574117469Sluigi l = 1 + (l+3)/4; 3575117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 3576117469Sluigi for (i = 0; i < ac; i++) { 3577117469Sluigi strcpy(p, av[i]); 3578117469Sluigi p += strlen(av[i]); 3579117469Sluigi *p++ = ' '; 3580117469Sluigi } 3581117469Sluigi *(--p) = '\0'; 3582117469Sluigi} 3583117577Sluigi 3584117469Sluigi/* 358598943Sluigi * A function to fill simple commands of size 1. 358698943Sluigi * Existing flags are preserved. 358798943Sluigi */ 358898943Sluigistatic void 3589117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 359098943Sluigi{ 359198943Sluigi cmd->opcode = opcode; 359298943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 359398943Sluigi cmd->arg1 = arg; 359498943Sluigi} 359598943Sluigi 359698943Sluigi/* 359798943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 359898943Sluigi * two microinstructions, and returns the pointer to the last one. 359998943Sluigi */ 360098943Sluigistatic ipfw_insn * 360198943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 360298943Sluigi{ 3603102087Sluigi ipfw_insn_mac *mac; 360498943Sluigi 3605102087Sluigi if (ac < 2) 3606102098Sluigi errx(EX_DATAERR, "MAC dst src"); 360798943Sluigi 360898943Sluigi cmd->opcode = O_MACADDR2; 360998943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 361098943Sluigi 361198943Sluigi mac = (ipfw_insn_mac *)cmd; 3612101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 361398943Sluigi get_mac_addr_mask(av[1], &(mac->addr[6]), &(mac->mask[6])); /* src */ 3614102087Sluigi return cmd; 3615102087Sluigi} 361698943Sluigi 3617102087Sluigistatic ipfw_insn * 3618102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 3619102087Sluigi{ 3620102087Sluigi if (ac < 1) 3621102087Sluigi errx(EX_DATAERR, "missing MAC type"); 3622102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 3623102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 362498943Sluigi cmd->opcode = O_MAC_TYPE; 3625102087Sluigi return cmd; 3626102087Sluigi } else 3627102087Sluigi return NULL; 3628102087Sluigi} 362998943Sluigi 3630102087Sluigistatic ipfw_insn * 3631152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 3632102087Sluigi{ 3633102087Sluigi struct protoent *pe; 3634152923Sume char *ep; 3635152923Sume int proto; 3636102087Sluigi 3637156315Sume proto = strtol(av, &ep, 10); 3638156315Sume if (*ep != '\0' || proto <= 0) { 3639152923Sume if ((pe = getprotobyname(av)) == NULL) 3640152923Sume return NULL; 3641152923Sume proto = pe->p_proto; 3642152923Sume } 3643145246Sbrooks 3644152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 3645152923Sume *protop = proto; 3646152923Sume return cmd; 3647152923Sume} 3648152923Sume 3649152923Sumestatic ipfw_insn * 3650152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 3651152923Sume{ 3652152923Sume u_char proto = IPPROTO_IP; 3653152923Sume 3654156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 3655146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 3656152923Sume else if (strcmp(av, "ip4") == 0) 3657152923Sume /* explicit "just IPv4" rule */ 3658152923Sume fill_cmd(cmd, O_IP4, 0, 0); 3659152923Sume else if (strcmp(av, "ip6") == 0) { 3660152923Sume /* explicit "just IPv6" rule */ 3661152923Sume proto = IPPROTO_IPV6; 3662152923Sume fill_cmd(cmd, O_IP6, 0, 0); 3663152923Sume } else 3664152923Sume return add_proto0(cmd, av, protop); 3665152923Sume 3666152923Sume *protop = proto; 3667152923Sume return cmd; 3668152923Sume} 3669152923Sume 3670152923Sumestatic ipfw_insn * 3671152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 3672152923Sume{ 3673152923Sume u_char proto = IPPROTO_IP; 3674152923Sume 3675152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 3676152923Sume ; /* do not set O_IP4 nor O_IP6 */ 3677146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 3678146894Smlaier /* explicit "just IPv4" rule */ 3679146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 3680146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 3681146894Smlaier /* explicit "just IPv6" rule */ 3682152923Sume proto = IPPROTO_IPV6; 3683146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 3684152923Sume } else 3685152923Sume return add_proto0(cmd, av, protop); 3686145246Sbrooks 3687152923Sume *protop = proto; 368898943Sluigi return cmd; 368998943Sluigi} 369098943Sluigi 3691102087Sluigistatic ipfw_insn * 3692102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 3693102087Sluigi{ 3694102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3695102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3696102087Sluigi cmd->opcode = O_IP_SRC_SET; 3697130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3698130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 3699102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3700102087Sluigi cmd->opcode = O_IP_SRC_ME; 3701102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3702102087Sluigi cmd->opcode = O_IP_SRC; 3703117328Sluigi else /* addr/mask */ 3704102087Sluigi cmd->opcode = O_IP_SRC_MASK; 3705102087Sluigi return cmd; 3706102087Sluigi} 3707102087Sluigi 3708102087Sluigistatic ipfw_insn * 3709102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 3710102087Sluigi{ 3711102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3712102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3713102087Sluigi ; 3714130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3715130281Sru ; 3716102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3717102087Sluigi cmd->opcode = O_IP_DST_ME; 3718102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3719102087Sluigi cmd->opcode = O_IP_DST; 3720117328Sluigi else /* addr/mask */ 3721102087Sluigi cmd->opcode = O_IP_DST_MASK; 3722102087Sluigi return cmd; 3723102087Sluigi} 3724102087Sluigi 3725102087Sluigistatic ipfw_insn * 3726102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 3727102087Sluigi{ 3728140271Sbrooks if (_substrcmp(av, "any") == 0) { 3729102087Sluigi return NULL; 3730102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 3731102087Sluigi /* XXX todo: check that we have a protocol with ports */ 3732102087Sluigi cmd->opcode = opcode; 3733102087Sluigi return cmd; 3734102087Sluigi } 3735102087Sluigi return NULL; 3736102087Sluigi} 3737102087Sluigi 3738145246Sbrooksstatic ipfw_insn * 3739145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 3740145246Sbrooks{ 3741145246Sbrooks struct in6_addr a; 3742158553Smlaier char *host, *ch; 3743158553Smlaier ipfw_insn *ret = NULL; 3744145246Sbrooks 3745158553Smlaier if ((host = strdup(av)) == NULL) 3746158553Smlaier return NULL; 3747158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 3748158553Smlaier *ch = '\0'; 3749158553Smlaier 3750145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3751158553Smlaier inet_pton(AF_INET6, host, &a)) 3752158553Smlaier ret = add_srcip6(cmd, av); 3753145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3754158553Smlaier if ((ret == NULL) && proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3755158553Smlaier !inet_pton(AF_INET6, host, &a)) 3756158553Smlaier ret = add_srcip(cmd, av); 3757158553Smlaier if ((ret == NULL) && strcmp(av, "any") != 0) 3758158553Smlaier ret = cmd; 3759145246Sbrooks 3760158553Smlaier free(host); 3761158553Smlaier return ret; 3762145246Sbrooks} 3763145246Sbrooks 3764145246Sbrooksstatic ipfw_insn * 3765145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 3766145246Sbrooks{ 3767145246Sbrooks struct in6_addr a; 3768158553Smlaier char *host, *ch; 3769158553Smlaier ipfw_insn *ret = NULL; 3770145246Sbrooks 3771158553Smlaier if ((host = strdup(av)) == NULL) 3772158553Smlaier return NULL; 3773158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 3774158553Smlaier *ch = '\0'; 3775158553Smlaier 3776145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3777158553Smlaier inet_pton(AF_INET6, host, &a)) 3778158553Smlaier ret = add_dstip6(cmd, av); 3779145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3780158553Smlaier if ((ret == NULL) && proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3781145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3782158553Smlaier ret = add_dstip(cmd, av); 3783158553Smlaier if ((ret == NULL) && strcmp(av, "any") != 0) 3784158553Smlaier ret = cmd; 3785145246Sbrooks 3786158553Smlaier free(host); 3787158553Smlaier return ret; 3788145246Sbrooks} 3789145246Sbrooks 379098943Sluigi/* 379198943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 379298943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 379398943Sluigi * into the actual rule. 379498943Sluigi * 3795136071Sgreen * The syntax for a rule starts with the action, followed by 3796136071Sgreen * optional action parameters, and the various match patterns. 3797108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 379898943Sluigi * (generated if the rule includes a keep-state option), then the 3799136071Sgreen * various match patterns, log/altq actions, and the actual action. 3800106505Smaxim * 380198943Sluigi */ 380298943Sluigistatic void 380398943Sluigiadd(int ac, char *av[]) 380498943Sluigi{ 380598943Sluigi /* 380698943Sluigi * rules are added into the 'rulebuf' and then copied in 380798943Sluigi * the correct order into the actual rule. 380898943Sluigi * Some things that need to go out of order (prob, action etc.) 380998943Sluigi * go into actbuf[]. 381098943Sluigi */ 3811117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 381298943Sluigi 3813117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 3814102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 381598943Sluigi 381698943Sluigi struct ip_fw *rule; 381798943Sluigi 381898943Sluigi /* 381998943Sluigi * various flags used to record that we entered some fields. 382098943Sluigi */ 3821101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 3822158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 3823134475Smaxim size_t len; 382498943Sluigi 382598943Sluigi int i; 382698943Sluigi 382798943Sluigi int open_par = 0; /* open parenthesis ( */ 382898943Sluigi 382998943Sluigi /* proto is here because it is used to fetch ports */ 383098943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 383198943Sluigi 3832107289Sluigi double match_prob = 1; /* match probability, default is always match */ 3833107289Sluigi 383498943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 383598943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 383698943Sluigi bzero(rulebuf, sizeof(rulebuf)); 383798943Sluigi 383898943Sluigi rule = (struct ip_fw *)rulebuf; 383998943Sluigi cmd = (ipfw_insn *)cmdbuf; 384098943Sluigi action = (ipfw_insn *)actbuf; 384198943Sluigi 384298943Sluigi av++; ac--; 384398943Sluigi 384498943Sluigi /* [rule N] -- Rule number optional */ 384598943Sluigi if (ac && isdigit(**av)) { 384698943Sluigi rule->rulenum = atoi(*av); 384798943Sluigi av++; 384898943Sluigi ac--; 384998943Sluigi } 385098943Sluigi 3851117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 3852140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 3853101628Sluigi int set = strtoul(av[1], NULL, 10); 3854117655Sluigi if (set < 0 || set > RESVD_SET) 3855101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 3856101628Sluigi rule->set = set; 3857101628Sluigi av += 2; ac -= 2; 3858101628Sluigi } 3859101628Sluigi 386098943Sluigi /* [prob D] -- match probability, optional */ 3861140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 3862107289Sluigi match_prob = strtod(av[1], NULL); 386398943Sluigi 3864107289Sluigi if (match_prob <= 0 || match_prob > 1) 386598943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 386698943Sluigi av += 2; ac -= 2; 386798943Sluigi } 386898943Sluigi 386998943Sluigi /* action -- mandatory */ 387098943Sluigi NEED1("missing action"); 387198943Sluigi i = match_token(rule_actions, *av); 387298943Sluigi ac--; av++; 387398943Sluigi action->len = 1; /* default */ 387498943Sluigi switch(i) { 387598943Sluigi case TOK_CHECKSTATE: 3876101116Sluigi have_state = action; 387798943Sluigi action->opcode = O_CHECK_STATE; 387898943Sluigi break; 387998943Sluigi 388098943Sluigi case TOK_ACCEPT: 388198943Sluigi action->opcode = O_ACCEPT; 388298943Sluigi break; 388398943Sluigi 388498943Sluigi case TOK_DENY: 388598943Sluigi action->opcode = O_DENY; 388699475Sluigi action->arg1 = 0; 388798943Sluigi break; 388898943Sluigi 388999475Sluigi case TOK_REJECT: 389099475Sluigi action->opcode = O_REJECT; 389199475Sluigi action->arg1 = ICMP_UNREACH_HOST; 389299475Sluigi break; 389399475Sluigi 389499475Sluigi case TOK_RESET: 389599475Sluigi action->opcode = O_REJECT; 389699475Sluigi action->arg1 = ICMP_REJECT_RST; 389799475Sluigi break; 389899475Sluigi 3899149020Sbz case TOK_RESET6: 3900149020Sbz action->opcode = O_UNREACH6; 3901149020Sbz action->arg1 = ICMP6_UNREACH_RST; 3902149020Sbz break; 3903149020Sbz 390499475Sluigi case TOK_UNREACH: 390599475Sluigi action->opcode = O_REJECT; 390699475Sluigi NEED1("missing reject code"); 390799475Sluigi fill_reject_code(&action->arg1, *av); 390899475Sluigi ac--; av++; 390999475Sluigi break; 391099475Sluigi 3911149020Sbz case TOK_UNREACH6: 3912149020Sbz action->opcode = O_UNREACH6; 3913149020Sbz NEED1("missing unreach code"); 3914149020Sbz fill_unreach6_code(&action->arg1, *av); 3915149020Sbz ac--; av++; 3916149020Sbz break; 3917149020Sbz 391898943Sluigi case TOK_COUNT: 391998943Sluigi action->opcode = O_COUNT; 392098943Sluigi break; 392198943Sluigi 392298943Sluigi case TOK_QUEUE: 3923153374Sglebius action->opcode = O_QUEUE; 3924153374Sglebius goto chkarg; 392598943Sluigi case TOK_PIPE: 3926153374Sglebius action->opcode = O_PIPE; 3927153374Sglebius goto chkarg; 392898943Sluigi case TOK_SKIPTO: 3929153374Sglebius action->opcode = O_SKIPTO; 3930153374Sglebius goto chkarg; 3931153374Sglebius case TOK_NETGRAPH: 3932153374Sglebius action->opcode = O_NETGRAPH; 3933153374Sglebius goto chkarg; 3934153374Sglebius case TOK_NGTEE: 3935153374Sglebius action->opcode = O_NGTEE; 3936153374Sglebius goto chkarg; 393798943Sluigi case TOK_DIVERT: 3938153374Sglebius action->opcode = O_DIVERT; 3939153374Sglebius goto chkarg; 394098943Sluigi case TOK_TEE: 3941153374Sglebius action->opcode = O_TEE; 3942153374Sglebiuschkarg: 3943153374Sglebius if (!ac) 3944153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 3945153374Sglebius if (isdigit(**av)) { 3946153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 3947153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 3948153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 3949153374Sglebius *(av - 1)); 3950153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 3951153374Sglebius action->arg1 = IP_FW_TABLEARG; 3952153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 395398943Sluigi struct servent *s; 395498943Sluigi setservent(1); 395598943Sluigi s = getservbyname(av[0], "divert"); 395698943Sluigi if (s != NULL) 395798943Sluigi action->arg1 = ntohs(s->s_port); 395898943Sluigi else 395998943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 3960153374Sglebius } else 3961153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 396298943Sluigi ac--; av++; 396398943Sluigi break; 396498943Sluigi 396598943Sluigi case TOK_FORWARD: { 396698943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 396798943Sluigi char *s, *end; 396898943Sluigi 396998943Sluigi NEED1("missing forward address[:port]"); 397098943Sluigi 397198943Sluigi action->opcode = O_FORWARD_IP; 397298943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 397398943Sluigi 397498943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 397598943Sluigi p->sa.sin_family = AF_INET; 397698943Sluigi p->sa.sin_port = 0; 397798943Sluigi /* 397898943Sluigi * locate the address-port separator (':' or ',') 397998943Sluigi */ 398098943Sluigi s = strchr(*av, ':'); 398198943Sluigi if (s == NULL) 398298943Sluigi s = strchr(*av, ','); 398398943Sluigi if (s != NULL) { 398498943Sluigi *(s++) = '\0'; 398598943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 398698943Sluigi if (s == end) 398798943Sluigi errx(EX_DATAERR, 398898943Sluigi "illegal forwarding port ``%s''", s); 3989103241Sluigi p->sa.sin_port = (u_short)i; 399098943Sluigi } 399198943Sluigi lookup_host(*av, &(p->sa.sin_addr)); 399298943Sluigi } 399398943Sluigi ac--; av++; 399498943Sluigi break; 399598943Sluigi 3996117469Sluigi case TOK_COMMENT: 3997117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 3998117469Sluigi action->opcode = O_COUNT; 3999117469Sluigi ac++; av--; /* go back... */ 4000117469Sluigi break; 4001117469Sluigi 400298943Sluigi default: 4003102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 400498943Sluigi } 400598943Sluigi action = next_cmd(action); 400698943Sluigi 400798943Sluigi /* 4008136071Sgreen * [altq queuename] -- altq tag, optional 400998943Sluigi * [log [logamount N]] -- log, optional 401098943Sluigi * 4011136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 401298943Sluigi * skipped in the copy section to the end of the buffer. 401398943Sluigi */ 4014136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4015136071Sgreen ac--; av++; 4016136071Sgreen switch (i) { 4017136071Sgreen case TOK_LOG: 4018136071Sgreen { 4019136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4020136071Sgreen int l; 402198943Sluigi 4022136071Sgreen if (have_log) 4023136071Sgreen errx(EX_DATAERR, 4024136071Sgreen "log cannot be specified more than once"); 4025136071Sgreen have_log = (ipfw_insn *)c; 4026136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 4027136071Sgreen cmd->opcode = O_LOG; 4028140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 4029136071Sgreen ac--; av++; 4030136071Sgreen NEED1("logamount requires argument"); 4031136071Sgreen l = atoi(*av); 4032136071Sgreen if (l < 0) 4033136071Sgreen errx(EX_DATAERR, 4034136071Sgreen "logamount must be positive"); 4035136071Sgreen c->max_log = l; 4036136071Sgreen ac--; av++; 4037136071Sgreen } else { 4038136071Sgreen len = sizeof(c->max_log); 4039136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 4040136071Sgreen &c->max_log, &len, NULL, 0) == -1) 4041136071Sgreen errx(1, "sysctlbyname(\"%s\")", 4042136071Sgreen "net.inet.ip.fw.verbose_limit"); 4043136071Sgreen } 4044136071Sgreen } 4045136071Sgreen break; 4046136071Sgreen 4047136071Sgreen case TOK_ALTQ: 4048136071Sgreen { 4049136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4050136071Sgreen 4051136071Sgreen NEED1("missing altq queue name"); 4052136071Sgreen if (have_altq) 4053136071Sgreen errx(EX_DATAERR, 4054136071Sgreen "altq cannot be specified more than once"); 4055136071Sgreen have_altq = (ipfw_insn *)a; 4056136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4057136071Sgreen cmd->opcode = O_ALTQ; 4058136071Sgreen fill_altq_qid(&a->qid, *av); 405998943Sluigi ac--; av++; 4060136071Sgreen } 4061136071Sgreen break; 4062136071Sgreen 4063158879Soleg case TOK_TAG: 4064158879Soleg case TOK_UNTAG: 4065158879Soleg { 4066158879Soleg if (have_tag) 4067158879Soleg errx(EX_USAGE, "tag and untag cannot be specified more than once"); 4068158879Soleg NEED1("missing tag number"); 4069158879Soleg NOT_NUMBER(*av, "invalid tag number"); 4070158879Soleg have_tag = cmd; 4071158879Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, 4072158879Soleg strtoul(*av, NULL, 0)); 4073158879Soleg ac--; av++; 4074158879Soleg } 4075158879Soleg break; 4076158879Soleg 4077136071Sgreen default: 4078136071Sgreen abort(); 407998943Sluigi } 408098943Sluigi cmd = next_cmd(cmd); 408198943Sluigi } 408298943Sluigi 4083101116Sluigi if (have_state) /* must be a check-state, we are done */ 408498943Sluigi goto done; 408598943Sluigi 408698943Sluigi#define OR_START(target) \ 408798943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 408898943Sluigi if (open_par) \ 408998943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 4090101641Sluigi prev = NULL; \ 409198943Sluigi open_par = 1; \ 409298943Sluigi if ( (av[0])[1] == '\0') { \ 409398943Sluigi ac--; av++; \ 409498943Sluigi } else \ 409598943Sluigi (*av)++; \ 409698943Sluigi } \ 409798943Sluigi target: \ 409898943Sluigi 409998943Sluigi 410098943Sluigi#define CLOSE_PAR \ 410198943Sluigi if (open_par) { \ 410298943Sluigi if (ac && ( \ 4103140271Sbrooks strcmp(*av, ")") == 0 || \ 4104140271Sbrooks strcmp(*av, "}") == 0)) { \ 4105101641Sluigi prev = NULL; \ 410698943Sluigi open_par = 0; \ 410798943Sluigi ac--; av++; \ 410898943Sluigi } else \ 410998943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 411098943Sluigi } 4111106505Smaxim 411298943Sluigi#define NOT_BLOCK \ 4113140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 411498943Sluigi if (cmd->len & F_NOT) \ 411598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 411698943Sluigi cmd->len |= F_NOT; \ 411798943Sluigi ac--; av++; \ 411898943Sluigi } 411998943Sluigi 412098943Sluigi#define OR_BLOCK(target) \ 4121140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 412298943Sluigi if (prev == NULL || open_par == 0) \ 412398943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 412498943Sluigi prev->len |= F_OR; \ 412598943Sluigi ac--; av++; \ 412698943Sluigi goto target; \ 412798943Sluigi } \ 412898943Sluigi CLOSE_PAR; 412998943Sluigi 4130102087Sluigi first_cmd = cmd; 4131102098Sluigi 4132102098Sluigi#if 0 413398943Sluigi /* 4134102087Sluigi * MAC addresses, optional. 4135102087Sluigi * If we have this, we skip the part "proto from src to dst" 4136102087Sluigi * and jump straight to the option parsing. 4137102087Sluigi */ 4138102087Sluigi NOT_BLOCK; 4139102087Sluigi NEED1("missing protocol"); 4140140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 4141140271Sbrooks _substrcmp(*av, "mac") == 0) { 4142102087Sluigi ac--; av++; /* the "MAC" keyword */ 4143102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 4144102087Sluigi cmd = next_cmd(cmd); 4145102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 4146102087Sluigi NOT_BLOCK; 4147102087Sluigi NEED1("missing mac type"); 4148102087Sluigi if (add_mactype(cmd, ac, av[0])) 4149102087Sluigi cmd = next_cmd(cmd); 4150102087Sluigi ac--; av++; /* any or mac-type */ 4151102087Sluigi goto read_options; 4152102087Sluigi } 4153102098Sluigi#endif 4154102087Sluigi 4155102087Sluigi /* 415698943Sluigi * protocol, mandatory 415798943Sluigi */ 415898943Sluigi OR_START(get_proto); 415998943Sluigi NOT_BLOCK; 416098943Sluigi NEED1("missing protocol"); 4161152923Sume if (add_proto_compat(cmd, *av, &proto)) { 4162102087Sluigi av++; ac--; 4163147105Smlaier if (F_LEN(cmd) != 0) { 4164102087Sluigi prev = cmd; 4165102087Sluigi cmd = next_cmd(cmd); 4166102087Sluigi } 4167102098Sluigi } else if (first_cmd != cmd) { 4168116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 4169102098Sluigi } else 4170102098Sluigi goto read_options; 417198943Sluigi OR_BLOCK(get_proto); 417298943Sluigi 417398943Sluigi /* 4174102087Sluigi * "from", mandatory 417598943Sluigi */ 4176140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 417798943Sluigi errx(EX_USAGE, "missing ``from''"); 417898943Sluigi ac--; av++; 417998943Sluigi 418098943Sluigi /* 418198943Sluigi * source IP, mandatory 418298943Sluigi */ 418398943Sluigi OR_START(source_ip); 418498943Sluigi NOT_BLOCK; /* optional "not" */ 418598943Sluigi NEED1("missing source address"); 4186145246Sbrooks if (add_src(cmd, *av, proto)) { 4187102087Sluigi ac--; av++; 4188102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4189102087Sluigi prev = cmd; 4190102087Sluigi cmd = next_cmd(cmd); 4191102087Sluigi } 4192145246Sbrooks } else 4193145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 419498943Sluigi OR_BLOCK(source_ip); 419598943Sluigi 419698943Sluigi /* 419798943Sluigi * source ports, optional 419898943Sluigi */ 419998943Sluigi NOT_BLOCK; /* optional "not" */ 4200101641Sluigi if (ac) { 4201140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4202102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4203102087Sluigi ac--; av++; 4204102087Sluigi if (F_LEN(cmd) != 0) 4205102087Sluigi cmd = next_cmd(cmd); 4206101641Sluigi } 420798943Sluigi } 420898943Sluigi 420998943Sluigi /* 4210102087Sluigi * "to", mandatory 421198943Sluigi */ 4212140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 421398943Sluigi errx(EX_USAGE, "missing ``to''"); 421498943Sluigi av++; ac--; 421598943Sluigi 421698943Sluigi /* 421798943Sluigi * destination, mandatory 421898943Sluigi */ 421998943Sluigi OR_START(dest_ip); 422098943Sluigi NOT_BLOCK; /* optional "not" */ 422198943Sluigi NEED1("missing dst address"); 4222145246Sbrooks if (add_dst(cmd, *av, proto)) { 4223102087Sluigi ac--; av++; 4224102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4225102087Sluigi prev = cmd; 4226102087Sluigi cmd = next_cmd(cmd); 4227102087Sluigi } 4228145246Sbrooks } else 4229145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 423098943Sluigi OR_BLOCK(dest_ip); 423198943Sluigi 423298943Sluigi /* 423398943Sluigi * dest. ports, optional 423498943Sluigi */ 423598943Sluigi NOT_BLOCK; /* optional "not" */ 4236101641Sluigi if (ac) { 4237140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4238102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4239102087Sluigi ac--; av++; 4240102087Sluigi if (F_LEN(cmd) != 0) 4241102087Sluigi cmd = next_cmd(cmd); 4242101641Sluigi } 424398943Sluigi } 424498943Sluigi 424598943Sluigiread_options: 4246102087Sluigi if (ac && first_cmd == cmd) { 4247102087Sluigi /* 4248102087Sluigi * nothing specified so far, store in the rule to ease 4249102087Sluigi * printout later. 4250102087Sluigi */ 4251102087Sluigi rule->_pad = 1; 4252102087Sluigi } 425398943Sluigi prev = NULL; 425498943Sluigi while (ac) { 4255101641Sluigi char *s; 4256101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 425798943Sluigi 4258101641Sluigi s = *av; 4259101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 4260101641Sluigi 426198943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 426298943Sluigi if (cmd->len & F_NOT) 426398943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 426498943Sluigi cmd->len = F_NOT; 426598943Sluigi s++; 426698943Sluigi } 426798943Sluigi i = match_token(rule_options, s); 426898943Sluigi ac--; av++; 426998943Sluigi switch(i) { 427098943Sluigi case TOK_NOT: 427198943Sluigi if (cmd->len & F_NOT) 427298943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 427398943Sluigi cmd->len = F_NOT; 427498943Sluigi break; 427598943Sluigi 427698943Sluigi case TOK_OR: 4277101641Sluigi if (open_par == 0 || prev == NULL) 427898943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 427998943Sluigi prev->len |= F_OR; 428098943Sluigi break; 4281101641Sluigi 4282101641Sluigi case TOK_STARTBRACE: 4283101641Sluigi if (open_par) 4284101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 4285101641Sluigi open_par = 1; 4286101641Sluigi break; 4287101641Sluigi 4288101641Sluigi case TOK_ENDBRACE: 4289101641Sluigi if (!open_par) 4290101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 4291101641Sluigi open_par = 0; 4292102087Sluigi prev = NULL; 4293101641Sluigi break; 4294101641Sluigi 429598943Sluigi case TOK_IN: 429698943Sluigi fill_cmd(cmd, O_IN, 0, 0); 429798943Sluigi break; 429898943Sluigi 429998943Sluigi case TOK_OUT: 430098943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 430198943Sluigi fill_cmd(cmd, O_IN, 0, 0); 430298943Sluigi break; 430398943Sluigi 4304136073Sgreen case TOK_DIVERTED: 4305136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 4306136073Sgreen break; 4307136073Sgreen 4308136073Sgreen case TOK_DIVERTEDLOOPBACK: 4309136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 4310136073Sgreen break; 4311136073Sgreen 4312136073Sgreen case TOK_DIVERTEDOUTPUT: 4313136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 4314136073Sgreen break; 4315136073Sgreen 431698943Sluigi case TOK_FRAG: 431798943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 431898943Sluigi break; 431998943Sluigi 432098943Sluigi case TOK_LAYER2: 432198943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 432298943Sluigi break; 432398943Sluigi 432498943Sluigi case TOK_XMIT: 432598943Sluigi case TOK_RECV: 432698943Sluigi case TOK_VIA: 432798943Sluigi NEED1("recv, xmit, via require interface name" 432898943Sluigi " or address"); 432998943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 433098943Sluigi ac--; av++; 433198943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 433298943Sluigi break; 433398943Sluigi if (i == TOK_XMIT) 433498943Sluigi cmd->opcode = O_XMIT; 433598943Sluigi else if (i == TOK_RECV) 433698943Sluigi cmd->opcode = O_RECV; 433798943Sluigi else if (i == TOK_VIA) 433898943Sluigi cmd->opcode = O_VIA; 433998943Sluigi break; 434098943Sluigi 434199475Sluigi case TOK_ICMPTYPES: 434299475Sluigi NEED1("icmptypes requires list of types"); 434399475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 434499475Sluigi av++; ac--; 434599475Sluigi break; 4346145246Sbrooks 4347145246Sbrooks case TOK_ICMP6TYPES: 4348145246Sbrooks NEED1("icmptypes requires list of types"); 4349145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 4350145246Sbrooks av++; ac--; 4351145246Sbrooks break; 435299475Sluigi 435398943Sluigi case TOK_IPTTL: 435498943Sluigi NEED1("ipttl requires TTL"); 4355116690Sluigi if (strpbrk(*av, "-,")) { 4356116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 4357116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 4358116690Sluigi } else 4359116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 436098943Sluigi ac--; av++; 436198943Sluigi break; 436298943Sluigi 436398943Sluigi case TOK_IPID: 4364116690Sluigi NEED1("ipid requires id"); 4365116690Sluigi if (strpbrk(*av, "-,")) { 4366116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 4367116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 4368116690Sluigi } else 4369116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 437098943Sluigi ac--; av++; 437198943Sluigi break; 437298943Sluigi 437398943Sluigi case TOK_IPLEN: 437498943Sluigi NEED1("iplen requires length"); 4375116690Sluigi if (strpbrk(*av, "-,")) { 4376116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 4377116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 4378116690Sluigi } else 4379116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 438098943Sluigi ac--; av++; 438198943Sluigi break; 438298943Sluigi 438398943Sluigi case TOK_IPVER: 438498943Sluigi NEED1("ipver requires version"); 438598943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 438698943Sluigi ac--; av++; 438798943Sluigi break; 438898943Sluigi 438999475Sluigi case TOK_IPPRECEDENCE: 439099475Sluigi NEED1("ipprecedence requires value"); 439199475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 439299475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 439399475Sluigi ac--; av++; 439499475Sluigi break; 439599475Sluigi 439698943Sluigi case TOK_IPOPTS: 439798943Sluigi NEED1("missing argument for ipoptions"); 4398101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 439998943Sluigi ac--; av++; 440098943Sluigi break; 440198943Sluigi 440299475Sluigi case TOK_IPTOS: 440399475Sluigi NEED1("missing argument for iptos"); 4404101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 440599475Sluigi ac--; av++; 440699475Sluigi break; 440799475Sluigi 440898943Sluigi case TOK_UID: 440998943Sluigi NEED1("uid requires argument"); 441098943Sluigi { 441198943Sluigi char *end; 441298943Sluigi uid_t uid; 441398943Sluigi struct passwd *pwd; 441498943Sluigi 441598943Sluigi cmd->opcode = O_UID; 441698943Sluigi uid = strtoul(*av, &end, 0); 441798943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 441898943Sluigi if (pwd == NULL) 441998943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 4420106504Smaxim cmd32->d[0] = pwd->pw_uid; 4421135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 442298943Sluigi ac--; av++; 442398943Sluigi } 442498943Sluigi break; 442598943Sluigi 442698943Sluigi case TOK_GID: 442798943Sluigi NEED1("gid requires argument"); 442898943Sluigi { 442998943Sluigi char *end; 443098943Sluigi gid_t gid; 443198943Sluigi struct group *grp; 443298943Sluigi 443398943Sluigi cmd->opcode = O_GID; 443498943Sluigi gid = strtoul(*av, &end, 0); 443598943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 443698943Sluigi if (grp == NULL) 443798943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 4438106504Smaxim cmd32->d[0] = grp->gr_gid; 4439135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 444098943Sluigi ac--; av++; 444198943Sluigi } 444298943Sluigi break; 444398943Sluigi 4444133600Scsjp case TOK_JAIL: 4445133600Scsjp NEED1("jail requires argument"); 4446133600Scsjp { 4447133600Scsjp char *end; 4448133600Scsjp int jid; 4449133600Scsjp 4450133600Scsjp cmd->opcode = O_JAIL; 4451133600Scsjp jid = (int)strtol(*av, &end, 0); 4452133600Scsjp if (jid < 0 || *end != '\0') 4453133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 4454135554Scsjp cmd32->d[0] = (uint32_t)jid; 4455135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 4456133600Scsjp ac--; av++; 4457133600Scsjp } 4458133600Scsjp break; 4459133600Scsjp 446098943Sluigi case TOK_ESTAB: 446198943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 446298943Sluigi break; 446398943Sluigi 446498943Sluigi case TOK_SETUP: 446598943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 446698943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 446798943Sluigi break; 446898943Sluigi 4469136075Sgreen case TOK_TCPDATALEN: 4470136075Sgreen NEED1("tcpdatalen requires length"); 4471136075Sgreen if (strpbrk(*av, "-,")) { 4472136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 4473136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 4474136075Sgreen } else 4475136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 4476136075Sgreen strtoul(*av, NULL, 0)); 4477136075Sgreen ac--; av++; 4478136075Sgreen break; 4479136075Sgreen 448098943Sluigi case TOK_TCPOPTS: 448198943Sluigi NEED1("missing argument for tcpoptions"); 448298943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 448398943Sluigi ac--; av++; 448498943Sluigi break; 448598943Sluigi 448698943Sluigi case TOK_TCPSEQ: 448798943Sluigi case TOK_TCPACK: 448898943Sluigi NEED1("tcpseq/tcpack requires argument"); 448998943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 449098943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 449198943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 449298943Sluigi ac--; av++; 449398943Sluigi break; 449498943Sluigi 449598943Sluigi case TOK_TCPWIN: 449698943Sluigi NEED1("tcpwin requires length"); 449798943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 449898943Sluigi htons(strtoul(*av, NULL, 0))); 449998943Sluigi ac--; av++; 450098943Sluigi break; 450198943Sluigi 450298943Sluigi case TOK_TCPFLAGS: 450398943Sluigi NEED1("missing argument for tcpflags"); 450498943Sluigi cmd->opcode = O_TCPFLAGS; 450598943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 450698943Sluigi ac--; av++; 450798943Sluigi break; 450898943Sluigi 450998943Sluigi case TOK_KEEPSTATE: 4510101641Sluigi if (open_par) 4511101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 4512101641Sluigi "of an or block"); 451399909Sluigi if (have_state) 4514101116Sluigi errx(EX_USAGE, "only one of keep-state " 451599909Sluigi "and limit is allowed"); 4516101116Sluigi have_state = cmd; 451798943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 451898943Sluigi break; 451998943Sluigi 452098943Sluigi case TOK_LIMIT: 4521101641Sluigi if (open_par) 4522101641Sluigi errx(EX_USAGE, "limit cannot be part " 4523101641Sluigi "of an or block"); 452499909Sluigi if (have_state) 4525101116Sluigi errx(EX_USAGE, "only one of keep-state " 452699909Sluigi "and limit is allowed"); 4527101641Sluigi NEED1("limit needs mask and # of connections"); 4528101116Sluigi have_state = cmd; 452998943Sluigi { 453098943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 453198943Sluigi 453298943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 453398943Sluigi cmd->opcode = O_LIMIT; 453498943Sluigi c->limit_mask = 0; 453598943Sluigi c->conn_limit = 0; 453698943Sluigi for (; ac >1 ;) { 453798943Sluigi int val; 453898943Sluigi 453998943Sluigi val = match_token(limit_masks, *av); 454098943Sluigi if (val <= 0) 454198943Sluigi break; 454298943Sluigi c->limit_mask |= val; 454398943Sluigi ac--; av++; 454498943Sluigi } 454598943Sluigi c->conn_limit = atoi(*av); 454698943Sluigi if (c->conn_limit == 0) 454798943Sluigi errx(EX_USAGE, "limit: limit must be >0"); 454898943Sluigi if (c->limit_mask == 0) 454998943Sluigi errx(EX_USAGE, "missing limit mask"); 455098943Sluigi ac--; av++; 455198943Sluigi } 455298943Sluigi break; 455398943Sluigi 4554102087Sluigi case TOK_PROTO: 4555102087Sluigi NEED1("missing protocol"); 4556145246Sbrooks if (add_proto(cmd, *av, &proto)) { 4557102087Sluigi ac--; av++; 4558102098Sluigi } else 4559116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 4560116438Smaxim *av); 4561102087Sluigi break; 4562106505Smaxim 4563102087Sluigi case TOK_SRCIP: 4564102087Sluigi NEED1("missing source IP"); 4565102087Sluigi if (add_srcip(cmd, *av)) { 4566102087Sluigi ac--; av++; 4567102087Sluigi } 4568102087Sluigi break; 4569102087Sluigi 4570102087Sluigi case TOK_DSTIP: 4571102087Sluigi NEED1("missing destination IP"); 4572102087Sluigi if (add_dstip(cmd, *av)) { 4573102087Sluigi ac--; av++; 4574102087Sluigi } 4575102087Sluigi break; 4576102087Sluigi 4577145246Sbrooks case TOK_SRCIP6: 4578145246Sbrooks NEED1("missing source IP6"); 4579145246Sbrooks if (add_srcip6(cmd, *av)) { 4580145246Sbrooks ac--; av++; 4581145246Sbrooks } 4582145246Sbrooks break; 4583145246Sbrooks 4584145246Sbrooks case TOK_DSTIP6: 4585145246Sbrooks NEED1("missing destination IP6"); 4586145246Sbrooks if (add_dstip6(cmd, *av)) { 4587145246Sbrooks ac--; av++; 4588145246Sbrooks } 4589145246Sbrooks break; 4590145246Sbrooks 4591102087Sluigi case TOK_SRCPORT: 4592102087Sluigi NEED1("missing source port"); 4593140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4594102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4595102087Sluigi ac--; av++; 4596102087Sluigi } else 4597102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 4598102087Sluigi break; 4599102087Sluigi 4600102087Sluigi case TOK_DSTPORT: 4601102087Sluigi NEED1("missing destination port"); 4602140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4603102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4604102087Sluigi ac--; av++; 4605102087Sluigi } else 4606102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 4607102087Sluigi *av); 4608102087Sluigi break; 4609102087Sluigi 4610102087Sluigi case TOK_MAC: 4611102087Sluigi if (add_mac(cmd, ac, av)) { 4612102087Sluigi ac -= 2; av += 2; 4613102087Sluigi } 4614102087Sluigi break; 4615102087Sluigi 4616102087Sluigi case TOK_MACTYPE: 4617102087Sluigi NEED1("missing mac type"); 4618102087Sluigi if (!add_mactype(cmd, ac, *av)) 4619116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 4620102087Sluigi ac--; av++; 4621102087Sluigi break; 4622102087Sluigi 4623112250Scjc case TOK_VERREVPATH: 4624112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 4625112250Scjc break; 4626116919Sluigi 4627128575Sandre case TOK_VERSRCREACH: 4628128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 4629128575Sandre break; 4630128575Sandre 4631133387Sandre case TOK_ANTISPOOF: 4632133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 4633133387Sandre break; 4634133387Sandre 4635117241Sluigi case TOK_IPSEC: 4636117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 4637117241Sluigi break; 4638117241Sluigi 4639145246Sbrooks case TOK_IPV6: 4640145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 4641145246Sbrooks break; 4642145246Sbrooks 4643146894Smlaier case TOK_IPV4: 4644146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4645146894Smlaier break; 4646146894Smlaier 4647145246Sbrooks case TOK_EXT6HDR: 4648145246Sbrooks fill_ext6hdr( cmd, *av ); 4649145246Sbrooks ac--; av++; 4650145246Sbrooks break; 4651145246Sbrooks 4652145246Sbrooks case TOK_FLOWID: 4653145246Sbrooks if (proto != IPPROTO_IPV6 ) 4654145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 4655145246Sbrooks "only for ipv6 protocol\n"); 4656145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 4657145246Sbrooks ac--; av++; 4658145246Sbrooks break; 4659145246Sbrooks 4660117469Sluigi case TOK_COMMENT: 4661117469Sluigi fill_comment(cmd, ac, av); 4662117469Sluigi av += ac; 4663117469Sluigi ac = 0; 4664117469Sluigi break; 4665117469Sluigi 4666158879Soleg case TOK_TAGGED: 4667158879Soleg NEED1("missing tag number"); 4668158879Soleg if (strpbrk(*av, "-,")) { 4669158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 4670158879Soleg errx(EX_DATAERR, "invalid tag %s", *av); 4671158879Soleg } else { 4672158879Soleg NOT_NUMBER(*av, "invalid tag number"); 4673158879Soleg fill_cmd(cmd, O_TAGGED, 0, 4674158879Soleg strtoul(*av, NULL, 0)); 4675158879Soleg } 4676158879Soleg ac--; av++; 4677158879Soleg break; 4678158879Soleg 467998943Sluigi default: 468098943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 468198943Sluigi } 468298943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 468398943Sluigi prev = cmd; 468498943Sluigi cmd = next_cmd(cmd); 468598943Sluigi } 468698943Sluigi } 468798943Sluigi 468898943Sluigidone: 468998943Sluigi /* 469098943Sluigi * Now copy stuff into the rule. 469198943Sluigi * If we have a keep-state option, the first instruction 469298943Sluigi * must be a PROBE_STATE (which is generated here). 469398943Sluigi * If we have a LOG option, it was stored as the first command, 469498943Sluigi * and now must be moved to the top of the action part. 469598943Sluigi */ 469698943Sluigi dst = (ipfw_insn *)rule->cmd; 469798943Sluigi 469898943Sluigi /* 4699107289Sluigi * First thing to write into the command stream is the match probability. 4700107289Sluigi */ 4701107289Sluigi if (match_prob != 1) { /* 1 means always match */ 4702107289Sluigi dst->opcode = O_PROB; 4703107289Sluigi dst->len = 2; 4704107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 4705107289Sluigi dst += dst->len; 4706107289Sluigi } 4707107289Sluigi 4708107289Sluigi /* 470998943Sluigi * generate O_PROBE_STATE if necessary 471098943Sluigi */ 4711101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 471298943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 471398943Sluigi dst = next_cmd(dst); 471498943Sluigi } 4715158879Soleg 4716158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 471798943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 471898943Sluigi i = F_LEN(src); 471998943Sluigi 4720101116Sluigi switch (src->opcode) { 4721101116Sluigi case O_LOG: 4722101116Sluigi case O_KEEP_STATE: 4723101116Sluigi case O_LIMIT: 4724136071Sgreen case O_ALTQ: 4725158879Soleg case O_TAG: 4726101116Sluigi break; 4727101116Sluigi default: 4728117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 472998943Sluigi dst += i; 473098943Sluigi } 473198943Sluigi } 473298943Sluigi 473398943Sluigi /* 4734101116Sluigi * put back the have_state command as last opcode 4735101116Sluigi */ 4736101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 4737101116Sluigi i = F_LEN(have_state); 4738117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 4739101116Sluigi dst += i; 4740101116Sluigi } 4741101116Sluigi /* 474298943Sluigi * start action section 474398943Sluigi */ 474498943Sluigi rule->act_ofs = dst - rule->cmd; 474598943Sluigi 4746158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 4747136071Sgreen if (have_log) { 4748136071Sgreen i = F_LEN(have_log); 4749136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 475098943Sluigi dst += i; 475198943Sluigi } 4752136071Sgreen if (have_altq) { 4753136071Sgreen i = F_LEN(have_altq); 4754136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 4755136071Sgreen dst += i; 4756136071Sgreen } 4757158879Soleg if (have_tag) { 4758158879Soleg i = F_LEN(have_tag); 4759158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 4760158879Soleg dst += i; 4761158879Soleg } 476298943Sluigi /* 476398943Sluigi * copy all other actions 476498943Sluigi */ 476598943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 476698943Sluigi i = F_LEN(src); 4767117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 476898943Sluigi dst += i; 476998943Sluigi } 477098943Sluigi 4771117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 4772117469Sluigi i = (char *)dst - (char *)rule; 4773119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 477498943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 477598943Sluigi if (!do_quiet) 4776117469Sluigi show_ipfw(rule, 0, 0); 477798943Sluigi} 477898943Sluigi 477998943Sluigistatic void 4780117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 478198943Sluigi{ 478298943Sluigi int rulenum; 478398943Sluigi int failed = EX_OK; 4784117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 478598943Sluigi 478698943Sluigi av++; ac--; 478798943Sluigi 478898943Sluigi if (!ac) { 478998943Sluigi /* clear all entries */ 4790117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 4791117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 479298943Sluigi if (!do_quiet) 4793117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 4794117328Sluigi "Accounting cleared":"Logging counts reset"); 479598943Sluigi 479698943Sluigi return; 479798943Sluigi } 479898943Sluigi 479998943Sluigi while (ac) { 480098943Sluigi /* Rule number */ 480198943Sluigi if (isdigit(**av)) { 480298943Sluigi rulenum = atoi(*av); 480398943Sluigi av++; 480498943Sluigi ac--; 4805117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 4806117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 4807117328Sluigi rulenum, name); 480898943Sluigi failed = EX_UNAVAILABLE; 480998943Sluigi } else if (!do_quiet) 4810117328Sluigi printf("Entry %d %s.\n", rulenum, 4811117328Sluigi optname == IP_FW_ZERO ? 4812117328Sluigi "cleared" : "logging count reset"); 481398943Sluigi } else { 481498943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 481598943Sluigi } 481698943Sluigi } 481798943Sluigi if (failed != EX_OK) 481898943Sluigi exit(failed); 481998943Sluigi} 482098943Sluigi 482198943Sluigistatic void 4822117544Sluigiflush(int force) 482398943Sluigi{ 482498943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 482598943Sluigi 4826117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 482798943Sluigi int c; 482898943Sluigi 482998943Sluigi printf("Are you sure? [yn] "); 483098943Sluigi fflush(stdout); 483198943Sluigi do { 483298943Sluigi c = toupper(getc(stdin)); 483398943Sluigi while (c != '\n' && getc(stdin) != '\n') 483498943Sluigi if (feof(stdin)) 483598943Sluigi return; /* and do not flush */ 483698943Sluigi } while (c != 'Y' && c != 'N'); 483798943Sluigi printf("\n"); 483898943Sluigi if (c == 'N') /* user said no */ 483998943Sluigi return; 484098943Sluigi } 4841117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 484298943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 484398943Sluigi do_pipe ? "DUMMYNET" : "FW"); 484498943Sluigi if (!do_quiet) 484598943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 484698943Sluigi} 484798943Sluigi 4848117469Sluigi/* 4849117544Sluigi * Free a the (locally allocated) copy of command line arguments. 4850117469Sluigi */ 4851117544Sluigistatic void 4852117544Sluigifree_args(int ac, char **av) 4853117544Sluigi{ 4854117544Sluigi int i; 4855117544Sluigi 4856117544Sluigi for (i=0; i < ac; i++) 4857117544Sluigi free(av[i]); 4858117544Sluigi free(av); 4859117544Sluigi} 4860117544Sluigi 4861117544Sluigi/* 4862130281Sru * This one handles all table-related commands 4863130281Sru * ipfw table N add addr[/masklen] [value] 4864130281Sru * ipfw table N delete addr[/masklen] 4865130281Sru * ipfw table N flush 4866130281Sru * ipfw table N list 4867130281Sru */ 4868130281Srustatic void 4869130281Srutable_handler(int ac, char *av[]) 4870130281Sru{ 4871130281Sru ipfw_table_entry ent; 4872130281Sru ipfw_table *tbl; 4873130281Sru int do_add; 4874130281Sru char *p; 4875130281Sru socklen_t l; 4876130281Sru uint32_t a; 4877130281Sru 4878130281Sru ac--; av++; 4879130281Sru if (ac && isdigit(**av)) { 4880130281Sru ent.tbl = atoi(*av); 4881130281Sru ac--; av++; 4882130281Sru } else 4883130281Sru errx(EX_USAGE, "table number required"); 4884130281Sru NEED1("table needs command"); 4885140271Sbrooks if (_substrcmp(*av, "add") == 0 || 4886140271Sbrooks _substrcmp(*av, "delete") == 0) { 4887130281Sru do_add = **av == 'a'; 4888130281Sru ac--; av++; 4889130281Sru if (!ac) 4890130281Sru errx(EX_USAGE, "IP address required"); 4891130281Sru p = strchr(*av, '/'); 4892130281Sru if (p) { 4893130281Sru *p++ = '\0'; 4894130281Sru ent.masklen = atoi(p); 4895130281Sru if (ent.masklen > 32) 4896130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 4897130281Sru } else 4898130281Sru ent.masklen = 32; 4899130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 4900130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 4901130281Sru ac--; av++; 4902130281Sru if (do_add && ac) 4903130281Sru ent.value = strtoul(*av, NULL, 0); 4904130281Sru else 4905130281Sru ent.value = 0; 4906130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 4907157335Sjulian &ent, sizeof(ent)) < 0) { 4908155639Sjulian /* If running silent, don't bomb out on these errors. */ 4909155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 4910155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 4911155639Sjulian do_add ? "ADD" : "DEL"); 4912155639Sjulian /* In silent mode, react to a failed add by deleting */ 4913157332Sjulian if (do_add) { 4914155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 4915155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 4916155639Sjulian &ent, sizeof(ent)) < 0) 4917155639Sjulian err(EX_OSERR, 4918155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 4919157332Sjulian } 4920157335Sjulian } 4921140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 4922130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 4923130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 4924140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 4925130281Sru a = ent.tbl; 4926130281Sru l = sizeof(a); 4927130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 4928130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 4929130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 4930130281Sru tbl = malloc(l); 4931130281Sru if (tbl == NULL) 4932130281Sru err(EX_OSERR, "malloc"); 4933130281Sru tbl->tbl = ent.tbl; 4934130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 4935130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 4936130281Sru for (a = 0; a < tbl->cnt; a++) { 4937130281Sru printf("%s/%u %u\n", 4938130281Sru inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 4939130281Sru tbl->ent[a].masklen, tbl->ent[a].value); 4940130281Sru } 4941130281Sru } else 4942130281Sru errx(EX_USAGE, "invalid table command %s", *av); 4943130281Sru} 4944130281Sru 4945130281Sru/* 4946117544Sluigi * Called with the arguments (excluding program name). 4947117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 4948117544Sluigi */ 494998943Sluigistatic int 4950117328Sluigiipfw_main(int oldac, char **oldav) 495198943Sluigi{ 4952117469Sluigi int ch, ac, save_ac; 4953117469Sluigi char **av, **save_av; 4954117469Sluigi int do_acct = 0; /* Show packet/byte count */ 4955117469Sluigi 4956117469Sluigi#define WHITESP " \t\f\v\n\r" 4957117544Sluigi if (oldac == 0) 4958117544Sluigi return 1; 4959117544Sluigi else if (oldac == 1) { 4960117328Sluigi /* 4961117328Sluigi * If we are called with a single string, try to split it into 4962117328Sluigi * arguments for subsequent parsing. 4963117328Sluigi * But first, remove spaces after a ',', by copying the string 4964117328Sluigi * in-place. 4965117328Sluigi */ 4966117469Sluigi char *arg = oldav[0]; /* The string... */ 4967117328Sluigi int l = strlen(arg); 4968117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 4969117328Sluigi int i, j; 4970117469Sluigi for (i = j = 0; i < l; i++) { 4971117469Sluigi if (arg[i] == '#') /* comment marker */ 4972117469Sluigi break; 4973117328Sluigi if (copy) { 4974117328Sluigi arg[j++] = arg[i]; 4975117469Sluigi copy = !index("," WHITESP, arg[i]); 4976117328Sluigi } else { 4977117469Sluigi copy = !index(WHITESP, arg[i]); 4978117328Sluigi if (copy) 4979117328Sluigi arg[j++] = arg[i]; 4980117328Sluigi } 4981117469Sluigi } 4982117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 4983117328Sluigi j--; 4984117328Sluigi l = j; /* the new argument length */ 4985117328Sluigi arg[j++] = '\0'; 4986117469Sluigi if (l == 0) /* empty string! */ 4987117544Sluigi return 1; 4988117328Sluigi 4989117328Sluigi /* 4990117328Sluigi * First, count number of arguments. Because of the previous 4991117469Sluigi * processing, this is just the number of blanks plus 1. 4992117328Sluigi */ 4993117469Sluigi for (i = 0, ac = 1; i < l; i++) 4994117469Sluigi if (index(WHITESP, arg[i]) != NULL) 4995117328Sluigi ac++; 4996117328Sluigi 4997117328Sluigi av = calloc(ac, sizeof(char *)); 4998117328Sluigi 4999117328Sluigi /* 5000117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 5001117328Sluigi * j is the initial character, i is the one past the end. 5002117328Sluigi */ 5003117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 5004117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 5005117328Sluigi if (i == l-1) 5006117328Sluigi i++; 5007117328Sluigi av[ac] = calloc(i-j+1, 1); 5008117328Sluigi bcopy(arg+j, av[ac], i-j); 5009117328Sluigi ac++; 5010117328Sluigi j = i + 1; 5011117328Sluigi } 5012117328Sluigi } else { 5013117328Sluigi /* 5014117328Sluigi * If an argument ends with ',' join with the next one. 5015117328Sluigi */ 5016117328Sluigi int first, i, l; 5017117328Sluigi 5018117328Sluigi av = calloc(oldac, sizeof(char *)); 5019117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 5020117328Sluigi char *arg = oldav[i]; 5021117328Sluigi int k = strlen(arg); 5022117328Sluigi 5023117328Sluigi l += k; 5024117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 5025117328Sluigi /* Time to copy. */ 5026117328Sluigi av[ac] = calloc(l+1, 1); 5027117328Sluigi for (l=0; first <= i; first++) { 5028117328Sluigi strcat(av[ac]+l, oldav[first]); 5029117328Sluigi l += strlen(oldav[first]); 5030117328Sluigi } 5031117328Sluigi ac++; 5032117328Sluigi l = 0; 5033117328Sluigi first = i+1; 5034117328Sluigi } 5035117328Sluigi } 5036117328Sluigi } 5037117328Sluigi 503898943Sluigi /* Set the force flag for non-interactive processes */ 5039123804Smaxim if (!do_force) 5040123804Smaxim do_force = !isatty(STDIN_FILENO); 504198943Sluigi 5042117469Sluigi /* Save arguments for final freeing of memory. */ 5043117469Sluigi save_ac = ac; 5044117469Sluigi save_av = av; 5045117469Sluigi 5046117469Sluigi optind = optreset = 0; 5047123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 504898943Sluigi switch (ch) { 504998943Sluigi case 'a': 505098943Sluigi do_acct = 1; 505198943Sluigi break; 5052117328Sluigi 5053123495Sluigi case 'b': 5054123495Sluigi comment_only = 1; 5055123495Sluigi do_compact = 1; 5056123495Sluigi break; 5057123495Sluigi 5058102098Sluigi case 'c': 5059102098Sluigi do_compact = 1; 5060102098Sluigi break; 5061117328Sluigi 506298943Sluigi case 'd': 506398943Sluigi do_dynamic = 1; 506498943Sluigi break; 5065117328Sluigi 506698943Sluigi case 'e': 506798943Sluigi do_expired = 1; 506898943Sluigi break; 5069117328Sluigi 507098943Sluigi case 'f': 507198943Sluigi do_force = 1; 507298943Sluigi break; 5073117328Sluigi 5074117328Sluigi case 'h': /* help */ 5075117544Sluigi free_args(save_ac, save_av); 5076117328Sluigi help(); 5077117328Sluigi break; /* NOTREACHED */ 5078117328Sluigi 5079117328Sluigi case 'n': 5080117328Sluigi test_only = 1; 5081117328Sluigi break; 5082117328Sluigi 508398943Sluigi case 'N': 508498943Sluigi do_resolv = 1; 508598943Sluigi break; 5086117328Sluigi 508798943Sluigi case 'q': 508898943Sluigi do_quiet = 1; 508998943Sluigi break; 5090117328Sluigi 5091117328Sluigi case 's': /* sort */ 5092117328Sluigi do_sort = atoi(optarg); 5093117328Sluigi break; 5094117328Sluigi 5095101628Sluigi case 'S': 5096101628Sluigi show_sets = 1; 5097101628Sluigi break; 5098117328Sluigi 509998943Sluigi case 't': 510098943Sluigi do_time = 1; 510198943Sluigi break; 5102117328Sluigi 5103117472Sluigi case 'T': 5104117472Sluigi do_time = 2; /* numeric timestamp */ 5105117472Sluigi break; 5106117472Sluigi 510798943Sluigi case 'v': /* verbose */ 5108117328Sluigi verbose = 1; 510998943Sluigi break; 5110117328Sluigi 511198943Sluigi default: 5112117544Sluigi free_args(save_ac, save_av); 5113117544Sluigi return 1; 511498943Sluigi } 511598943Sluigi 511698943Sluigi ac -= optind; 511798943Sluigi av += optind; 511898943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 511998943Sluigi 512098943Sluigi /* 5121117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 5122117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 5123117544Sluigi * In case, swap first and second argument to get the normal form. 5124117544Sluigi */ 5125117544Sluigi if (ac > 1 && isdigit(*av[0])) { 5126117544Sluigi char *p = av[0]; 5127117544Sluigi 5128117544Sluigi av[0] = av[1]; 5129117544Sluigi av[1] = p; 5130117544Sluigi } 5131117544Sluigi 5132117544Sluigi /* 513398943Sluigi * optional: pipe or queue 513498943Sluigi */ 5135117821Smaxim do_pipe = 0; 5136140271Sbrooks if (_substrcmp(*av, "pipe") == 0) 513798943Sluigi do_pipe = 1; 5138140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 513998943Sluigi do_pipe = 2; 5140117544Sluigi if (do_pipe) { 514198943Sluigi ac--; 514298943Sluigi av++; 514398943Sluigi } 514498943Sluigi NEED1("missing command"); 514598943Sluigi 514698943Sluigi /* 5147117328Sluigi * For pipes and queues we normally say 'pipe NN config' 514898943Sluigi * but the code is easier to parse as 'pipe config NN' 514998943Sluigi * so we swap the two arguments. 515098943Sluigi */ 5151117469Sluigi if (do_pipe > 0 && ac > 1 && isdigit(*av[0])) { 515298943Sluigi char *p = av[0]; 5153117544Sluigi 515498943Sluigi av[0] = av[1]; 515598943Sluigi av[1] = p; 515698943Sluigi } 5157117328Sluigi 5158140271Sbrooks if (_substrcmp(*av, "add") == 0) 515998943Sluigi add(ac, av); 5160140271Sbrooks else if (do_pipe && _substrcmp(*av, "config") == 0) 516198943Sluigi config_pipe(ac, av); 5162140271Sbrooks else if (_substrcmp(*av, "delete") == 0) 516398943Sluigi delete(ac, av); 5164140271Sbrooks else if (_substrcmp(*av, "flush") == 0) 5165117544Sluigi flush(do_force); 5166140271Sbrooks else if (_substrcmp(*av, "zero") == 0) 5167117328Sluigi zero(ac, av, IP_FW_ZERO); 5168140271Sbrooks else if (_substrcmp(*av, "resetlog") == 0) 5169117328Sluigi zero(ac, av, IP_FW_RESETLOG); 5170140271Sbrooks else if (_substrcmp(*av, "print") == 0 || 5171140271Sbrooks _substrcmp(*av, "list") == 0) 5172117469Sluigi list(ac, av, do_acct); 5173140271Sbrooks else if (_substrcmp(*av, "set") == 0) 5174101978Sluigi sets_handler(ac, av); 5175140271Sbrooks else if (_substrcmp(*av, "table") == 0) 5176130281Sru table_handler(ac, av); 5177140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 5178109126Sdillon sysctl_handler(ac, av, 1); 5179140271Sbrooks else if (_substrcmp(*av, "disable") == 0) 5180109126Sdillon sysctl_handler(ac, av, 0); 5181140271Sbrooks else if (_substrcmp(*av, "show") == 0) 5182117469Sluigi list(ac, av, 1 /* show counters */); 5183117469Sluigi else 518498943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 5185117469Sluigi 5186117469Sluigi /* Free memory allocated in the argument parsing. */ 5187117544Sluigi free_args(save_ac, save_av); 518898943Sluigi return 0; 518998943Sluigi} 519098943Sluigi 519198943Sluigi 519298943Sluigistatic void 5193106505Smaximipfw_readfile(int ac, char *av[]) 519498943Sluigi{ 519598943Sluigi#define MAX_ARGS 32 519698943Sluigi char buf[BUFSIZ]; 5197117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 5198117469Sluigi int c, lineno=0; 519998943Sluigi FILE *f = NULL; 520098943Sluigi pid_t preproc = 0; 520198943Sluigi 5202117469Sluigi filename = av[ac-1]; 5203117469Sluigi 5204123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 520598943Sluigi switch(c) { 5206117469Sluigi case 'c': 5207117469Sluigi do_compact = 1; 5208117469Sluigi break; 5209117469Sluigi 5210123804Smaxim case 'f': 5211123804Smaxim do_force = 1; 5212123804Smaxim break; 5213123804Smaxim 5214117469Sluigi case 'N': 5215117469Sluigi do_resolv = 1; 5216117469Sluigi break; 5217117469Sluigi 5218117328Sluigi case 'n': 5219117328Sluigi test_only = 1; 5220117328Sluigi break; 5221117328Sluigi 522298943Sluigi case 'p': 522398943Sluigi cmd = optarg; 5224117469Sluigi /* 5225117469Sluigi * Skip previous args and delete last one, so we 5226117469Sluigi * pass all but the last argument to the preprocessor 5227117469Sluigi * via av[optind-1] 5228117469Sluigi */ 5229117469Sluigi av += optind - 1; 5230117469Sluigi ac -= optind - 1; 5231117469Sluigi av[ac-1] = NULL; 5232117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 523398943Sluigi break; 523498943Sluigi 523598943Sluigi case 'q': 5236117469Sluigi do_quiet = 1; 523798943Sluigi break; 523898943Sluigi 5239117469Sluigi case 'S': 5240117469Sluigi show_sets = 1; 5241117469Sluigi break; 5242117469Sluigi 524398943Sluigi default: 524498943Sluigi errx(EX_USAGE, "bad arguments, for usage" 524598943Sluigi " summary ``ipfw''"); 524698943Sluigi } 524798943Sluigi 5248117469Sluigi if (cmd != NULL) 5249108231Skbyanc break; 5250108231Skbyanc } 5251108231Skbyanc 5252117469Sluigi if (cmd == NULL && ac != optind + 1) { 5253117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 5254117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 5255108231Skbyanc } 5256108231Skbyanc 5257117469Sluigi if ((f = fopen(filename, "r")) == NULL) 5258117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 525998943Sluigi 5260117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 526198943Sluigi int pipedes[2]; 526298943Sluigi 526398943Sluigi if (pipe(pipedes) == -1) 526498943Sluigi err(EX_OSERR, "cannot create pipe"); 526598943Sluigi 5266117469Sluigi preproc = fork(); 5267117469Sluigi if (preproc == -1) 526898943Sluigi err(EX_OSERR, "cannot fork"); 526998943Sluigi 5270117577Sluigi if (preproc == 0) { 5271117469Sluigi /* 5272117469Sluigi * Child, will run the preprocessor with the 5273117469Sluigi * file on stdin and the pipe on stdout. 5274117469Sluigi */ 527598943Sluigi if (dup2(fileno(f), 0) == -1 527698943Sluigi || dup2(pipedes[1], 1) == -1) 527798943Sluigi err(EX_OSERR, "dup2()"); 527898943Sluigi fclose(f); 527998943Sluigi close(pipedes[1]); 528098943Sluigi close(pipedes[0]); 5281117469Sluigi execvp(cmd, av); 528298943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 5283117469Sluigi } else { /* parent, will reopen f as the pipe */ 528498943Sluigi fclose(f); 528598943Sluigi close(pipedes[1]); 528698943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 528798943Sluigi int savederrno = errno; 528898943Sluigi 528998943Sluigi (void)kill(preproc, SIGTERM); 529098943Sluigi errno = savederrno; 529198943Sluigi err(EX_OSERR, "fdopen()"); 529298943Sluigi } 529398943Sluigi } 529498943Sluigi } 529598943Sluigi 5296117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 5297117469Sluigi char linename[10]; 5298117469Sluigi char *args[1]; 5299117469Sluigi 530098943Sluigi lineno++; 530198943Sluigi sprintf(linename, "Line %d", lineno); 5302117328Sluigi setprogname(linename); /* XXX */ 5303117469Sluigi args[0] = buf; 5304117469Sluigi ipfw_main(1, args); 530598943Sluigi } 530698943Sluigi fclose(f); 5307117469Sluigi if (cmd != NULL) { 5308117469Sluigi int status; 5309117469Sluigi 531098943Sluigi if (waitpid(preproc, &status, 0) == -1) 531198943Sluigi errx(EX_OSERR, "waitpid()"); 531298943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 531398943Sluigi errx(EX_UNAVAILABLE, 531498943Sluigi "preprocessor exited with status %d", 531598943Sluigi WEXITSTATUS(status)); 531698943Sluigi else if (WIFSIGNALED(status)) 531798943Sluigi errx(EX_UNAVAILABLE, 531898943Sluigi "preprocessor exited with signal %d", 531998943Sluigi WTERMSIG(status)); 532098943Sluigi } 532198943Sluigi} 532298943Sluigi 532398943Sluigiint 532498943Sluigimain(int ac, char *av[]) 532598943Sluigi{ 532698943Sluigi /* 532798943Sluigi * If the last argument is an absolute pathname, interpret it 532898943Sluigi * as a file to be preprocessed. 532998943Sluigi */ 533098943Sluigi 533198943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 533298943Sluigi ipfw_readfile(ac, av); 5333117544Sluigi else { 5334117544Sluigi if (ipfw_main(ac-1, av+1)) 5335117544Sluigi show_usage(); 5336117544Sluigi } 533798943Sluigi return EX_OK; 533898943Sluigi} 5339