ipfw2.c revision 145567
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 145567 2005-04-26 20:22:31Z brooks $ 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 8598943Sluigi/* 86117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 87117328Sluigi * various places in the parser. Entries are stored in arrays, 88117328Sluigi * with an entry with s=NULL as terminator. 89117328Sluigi * The search routines are match_token() and match_value(). 90117328Sluigi * Often, an element with x=0 contains an error string. 9198943Sluigi * 9298943Sluigi */ 9398943Sluigistruct _s_x { 94117469Sluigi char const *s; 9598943Sluigi int x; 9698943Sluigi}; 9798943Sluigi 9898943Sluigistatic struct _s_x f_tcpflags[] = { 9998943Sluigi { "syn", TH_SYN }, 10098943Sluigi { "fin", TH_FIN }, 10198943Sluigi { "ack", TH_ACK }, 10298943Sluigi { "psh", TH_PUSH }, 10398943Sluigi { "rst", TH_RST }, 10498943Sluigi { "urg", TH_URG }, 10598943Sluigi { "tcp flag", 0 }, 10698943Sluigi { NULL, 0 } 10798943Sluigi}; 10898943Sluigi 10998943Sluigistatic struct _s_x f_tcpopts[] = { 11098943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 11198943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 11298943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 11398943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 11498943Sluigi { "ts", IP_FW_TCPOPT_TS }, 11598943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 11698943Sluigi { "cc", IP_FW_TCPOPT_CC }, 11798943Sluigi { "tcp option", 0 }, 11898943Sluigi { NULL, 0 } 11998943Sluigi}; 12098943Sluigi 12198943Sluigi/* 12298943Sluigi * IP options span the range 0 to 255 so we need to remap them 12398943Sluigi * (though in fact only the low 5 bits are significant). 12498943Sluigi */ 12598943Sluigistatic struct _s_x f_ipopts[] = { 12698943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 12798943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 12898943Sluigi { "rr", IP_FW_IPOPT_RR}, 12998943Sluigi { "ts", IP_FW_IPOPT_TS}, 13098943Sluigi { "ip option", 0 }, 13198943Sluigi { NULL, 0 } 13298943Sluigi}; 13398943Sluigi 13498943Sluigistatic struct _s_x f_iptos[] = { 13598943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 13698943Sluigi { "throughput", IPTOS_THROUGHPUT}, 13798943Sluigi { "reliability", IPTOS_RELIABILITY}, 13898943Sluigi { "mincost", IPTOS_MINCOST}, 13998943Sluigi { "congestion", IPTOS_CE}, 14098943Sluigi { "ecntransport", IPTOS_ECT}, 14198943Sluigi { "ip tos option", 0}, 14298943Sluigi { NULL, 0 } 14398943Sluigi}; 14498943Sluigi 14598943Sluigistatic struct _s_x limit_masks[] = { 14698943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 14798943Sluigi {"src-addr", DYN_SRC_ADDR}, 14898943Sluigi {"src-port", DYN_SRC_PORT}, 14998943Sluigi {"dst-addr", DYN_DST_ADDR}, 15098943Sluigi {"dst-port", DYN_DST_PORT}, 15198943Sluigi {NULL, 0} 15298943Sluigi}; 15398943Sluigi 15498943Sluigi/* 15598943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 15698943Sluigi * This is only used in this code. 15798943Sluigi */ 15898943Sluigi#define IPPROTO_ETHERTYPE 0x1000 15998943Sluigistatic struct _s_x ether_types[] = { 16098943Sluigi /* 16198943Sluigi * Note, we cannot use "-:&/" in the names because they are field 16298943Sluigi * separators in the type specifications. Also, we use s = NULL as 16398943Sluigi * end-delimiter, because a type of 0 can be legal. 16498943Sluigi */ 16598943Sluigi { "ip", 0x0800 }, 16698943Sluigi { "ipv4", 0x0800 }, 16798943Sluigi { "ipv6", 0x86dd }, 16898943Sluigi { "arp", 0x0806 }, 16998943Sluigi { "rarp", 0x8035 }, 17098943Sluigi { "vlan", 0x8100 }, 17198943Sluigi { "loop", 0x9000 }, 17298943Sluigi { "trail", 0x1000 }, 17398943Sluigi { "at", 0x809b }, 17498943Sluigi { "atalk", 0x809b }, 17598943Sluigi { "aarp", 0x80f3 }, 17698943Sluigi { "pppoe_disc", 0x8863 }, 17798943Sluigi { "pppoe_sess", 0x8864 }, 17898943Sluigi { "ipx_8022", 0x00E0 }, 17998943Sluigi { "ipx_8023", 0x0000 }, 18098943Sluigi { "ipx_ii", 0x8137 }, 18198943Sluigi { "ipx_snap", 0x8137 }, 18298943Sluigi { "ipx", 0x8137 }, 18398943Sluigi { "ns", 0x0600 }, 18498943Sluigi { NULL, 0 } 18598943Sluigi}; 18698943Sluigi 18798943Sluigistatic void show_usage(void); 18898943Sluigi 18998943Sluigienum tokens { 19098943Sluigi TOK_NULL=0, 19198943Sluigi 19298943Sluigi TOK_OR, 19398943Sluigi TOK_NOT, 194101641Sluigi TOK_STARTBRACE, 195101641Sluigi TOK_ENDBRACE, 19698943Sluigi 19798943Sluigi TOK_ACCEPT, 19898943Sluigi TOK_COUNT, 19998943Sluigi TOK_PIPE, 20098943Sluigi TOK_QUEUE, 20198943Sluigi TOK_DIVERT, 20298943Sluigi TOK_TEE, 203141351Sglebius TOK_NETGRAPH, 204141351Sglebius TOK_NGTEE, 20598943Sluigi TOK_FORWARD, 20698943Sluigi TOK_SKIPTO, 20798943Sluigi TOK_DENY, 20898943Sluigi TOK_REJECT, 20998943Sluigi TOK_RESET, 21098943Sluigi TOK_UNREACH, 21198943Sluigi TOK_CHECKSTATE, 21298943Sluigi 213136071Sgreen TOK_ALTQ, 214136071Sgreen TOK_LOG, 215136071Sgreen 21698943Sluigi TOK_UID, 21798943Sluigi TOK_GID, 218133600Scsjp TOK_JAIL, 21998943Sluigi TOK_IN, 22098943Sluigi TOK_LIMIT, 22198943Sluigi TOK_KEEPSTATE, 22298943Sluigi TOK_LAYER2, 22398943Sluigi TOK_OUT, 224136073Sgreen TOK_DIVERTED, 225136073Sgreen TOK_DIVERTEDLOOPBACK, 226136073Sgreen TOK_DIVERTEDOUTPUT, 22798943Sluigi TOK_XMIT, 22898943Sluigi TOK_RECV, 22998943Sluigi TOK_VIA, 23098943Sluigi TOK_FRAG, 23198943Sluigi TOK_IPOPTS, 23298943Sluigi TOK_IPLEN, 23398943Sluigi TOK_IPID, 23498943Sluigi TOK_IPPRECEDENCE, 23598943Sluigi TOK_IPTOS, 23698943Sluigi TOK_IPTTL, 23798943Sluigi TOK_IPVER, 23898943Sluigi TOK_ESTAB, 23998943Sluigi TOK_SETUP, 240136075Sgreen TOK_TCPDATALEN, 24198943Sluigi TOK_TCPFLAGS, 24298943Sluigi TOK_TCPOPTS, 24398943Sluigi TOK_TCPSEQ, 24498943Sluigi TOK_TCPACK, 24598943Sluigi TOK_TCPWIN, 24698943Sluigi TOK_ICMPTYPES, 247102087Sluigi TOK_MAC, 248102087Sluigi TOK_MACTYPE, 249112250Scjc TOK_VERREVPATH, 250128575Sandre TOK_VERSRCREACH, 251133387Sandre TOK_ANTISPOOF, 252117241Sluigi TOK_IPSEC, 253117469Sluigi TOK_COMMENT, 25498943Sluigi 25598943Sluigi TOK_PLR, 256101978Sluigi TOK_NOERROR, 25798943Sluigi TOK_BUCKETS, 25898943Sluigi TOK_DSTIP, 25998943Sluigi TOK_SRCIP, 26098943Sluigi TOK_DSTPORT, 26198943Sluigi TOK_SRCPORT, 26298943Sluigi TOK_ALL, 26398943Sluigi TOK_MASK, 26498943Sluigi TOK_BW, 26598943Sluigi TOK_DELAY, 26698943Sluigi TOK_RED, 26798943Sluigi TOK_GRED, 26898943Sluigi TOK_DROPTAIL, 26998943Sluigi TOK_PROTO, 27098943Sluigi TOK_WEIGHT, 271145246Sbrooks 272145246Sbrooks TOK_IPV6, 273145246Sbrooks TOK_FLOWID, 274145246Sbrooks TOK_ICMP6TYPES, 275145246Sbrooks TOK_EXT6HDR, 276145246Sbrooks TOK_DSTIP6, 277145246Sbrooks TOK_SRCIP6, 27898943Sluigi}; 27998943Sluigi 28098943Sluigistruct _s_x dummynet_params[] = { 28198943Sluigi { "plr", TOK_PLR }, 282101978Sluigi { "noerror", TOK_NOERROR }, 28398943Sluigi { "buckets", TOK_BUCKETS }, 28498943Sluigi { "dst-ip", TOK_DSTIP }, 28598943Sluigi { "src-ip", TOK_SRCIP }, 28698943Sluigi { "dst-port", TOK_DSTPORT }, 28798943Sluigi { "src-port", TOK_SRCPORT }, 28898943Sluigi { "proto", TOK_PROTO }, 28998943Sluigi { "weight", TOK_WEIGHT }, 29098943Sluigi { "all", TOK_ALL }, 29198943Sluigi { "mask", TOK_MASK }, 29298943Sluigi { "droptail", TOK_DROPTAIL }, 29398943Sluigi { "red", TOK_RED }, 29498943Sluigi { "gred", TOK_GRED }, 29598943Sluigi { "bw", TOK_BW }, 29698943Sluigi { "bandwidth", TOK_BW }, 29798943Sluigi { "delay", TOK_DELAY }, 29899475Sluigi { "pipe", TOK_PIPE }, 29998943Sluigi { "queue", TOK_QUEUE }, 300145246Sbrooks { "flow-id", TOK_FLOWID}, 301145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 302145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 303145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 304145246Sbrooks { "src-ip6", TOK_SRCIP6}, 30598943Sluigi { "dummynet-params", TOK_NULL }, 306117328Sluigi { NULL, 0 } /* terminator */ 30798943Sluigi}; 30898943Sluigi 30998943Sluigistruct _s_x rule_actions[] = { 31098943Sluigi { "accept", TOK_ACCEPT }, 31198943Sluigi { "pass", TOK_ACCEPT }, 31298943Sluigi { "allow", TOK_ACCEPT }, 31398943Sluigi { "permit", TOK_ACCEPT }, 31498943Sluigi { "count", TOK_COUNT }, 31598943Sluigi { "pipe", TOK_PIPE }, 31698943Sluigi { "queue", TOK_QUEUE }, 31798943Sluigi { "divert", TOK_DIVERT }, 31898943Sluigi { "tee", TOK_TEE }, 319141351Sglebius { "netgraph", TOK_NETGRAPH }, 320141351Sglebius { "ngtee", TOK_NGTEE }, 32198943Sluigi { "fwd", TOK_FORWARD }, 32298943Sluigi { "forward", TOK_FORWARD }, 32398943Sluigi { "skipto", TOK_SKIPTO }, 32498943Sluigi { "deny", TOK_DENY }, 32598943Sluigi { "drop", TOK_DENY }, 32698943Sluigi { "reject", TOK_REJECT }, 32798943Sluigi { "reset", TOK_RESET }, 32899475Sluigi { "unreach", TOK_UNREACH }, 32998943Sluigi { "check-state", TOK_CHECKSTATE }, 330117469Sluigi { "//", TOK_COMMENT }, 331117328Sluigi { NULL, 0 } /* terminator */ 33298943Sluigi}; 33398943Sluigi 334136071Sgreenstruct _s_x rule_action_params[] = { 335136071Sgreen { "altq", TOK_ALTQ }, 336136071Sgreen { "log", TOK_LOG }, 337136071Sgreen { NULL, 0 } /* terminator */ 338136071Sgreen}; 339136071Sgreen 34098943Sluigistruct _s_x rule_options[] = { 34198943Sluigi { "uid", TOK_UID }, 34298943Sluigi { "gid", TOK_GID }, 343133600Scsjp { "jail", TOK_JAIL }, 34498943Sluigi { "in", TOK_IN }, 34598943Sluigi { "limit", TOK_LIMIT }, 34698943Sluigi { "keep-state", TOK_KEEPSTATE }, 34798943Sluigi { "bridged", TOK_LAYER2 }, 34898943Sluigi { "layer2", TOK_LAYER2 }, 34998943Sluigi { "out", TOK_OUT }, 350136073Sgreen { "diverted", TOK_DIVERTED }, 351136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 352136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 35398943Sluigi { "xmit", TOK_XMIT }, 35498943Sluigi { "recv", TOK_RECV }, 35598943Sluigi { "via", TOK_VIA }, 35698943Sluigi { "fragment", TOK_FRAG }, 35798943Sluigi { "frag", TOK_FRAG }, 35898943Sluigi { "ipoptions", TOK_IPOPTS }, 35998943Sluigi { "ipopts", TOK_IPOPTS }, 36098943Sluigi { "iplen", TOK_IPLEN }, 36198943Sluigi { "ipid", TOK_IPID }, 36298943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 36398943Sluigi { "iptos", TOK_IPTOS }, 36498943Sluigi { "ipttl", TOK_IPTTL }, 36598943Sluigi { "ipversion", TOK_IPVER }, 36698943Sluigi { "ipver", TOK_IPVER }, 36798943Sluigi { "estab", TOK_ESTAB }, 36898943Sluigi { "established", TOK_ESTAB }, 36998943Sluigi { "setup", TOK_SETUP }, 370136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 37198943Sluigi { "tcpflags", TOK_TCPFLAGS }, 37298943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 37398943Sluigi { "tcpoptions", TOK_TCPOPTS }, 37498943Sluigi { "tcpopts", TOK_TCPOPTS }, 37598943Sluigi { "tcpseq", TOK_TCPSEQ }, 37698943Sluigi { "tcpack", TOK_TCPACK }, 37798943Sluigi { "tcpwin", TOK_TCPWIN }, 37899909Sluigi { "icmptype", TOK_ICMPTYPES }, 37998943Sluigi { "icmptypes", TOK_ICMPTYPES }, 380102087Sluigi { "dst-ip", TOK_DSTIP }, 381102087Sluigi { "src-ip", TOK_SRCIP }, 382102087Sluigi { "dst-port", TOK_DSTPORT }, 383102087Sluigi { "src-port", TOK_SRCPORT }, 384102087Sluigi { "proto", TOK_PROTO }, 385102087Sluigi { "MAC", TOK_MAC }, 386102087Sluigi { "mac", TOK_MAC }, 387102087Sluigi { "mac-type", TOK_MACTYPE }, 388112250Scjc { "verrevpath", TOK_VERREVPATH }, 389128575Sandre { "versrcreach", TOK_VERSRCREACH }, 390133387Sandre { "antispoof", TOK_ANTISPOOF }, 391117241Sluigi { "ipsec", TOK_IPSEC }, 392145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 393145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 394145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 395145246Sbrooks { "flow-id", TOK_FLOWID}, 396145246Sbrooks { "ipv6", TOK_IPV6}, 397145246Sbrooks { "ip6", TOK_IPV6}, 398145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 399145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 400145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 401145246Sbrooks { "src-ip6", TOK_SRCIP6}, 402117469Sluigi { "//", TOK_COMMENT }, 40398943Sluigi 40498943Sluigi { "not", TOK_NOT }, /* pseudo option */ 40598943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 40698943Sluigi { "or", TOK_OR }, /* pseudo option */ 40798943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 408101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 409101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 410101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 411101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 412117328Sluigi { NULL, 0 } /* terminator */ 41398943Sluigi}; 41498943Sluigi 415117328Sluigistatic __inline uint64_t 416117328Sluigialign_uint64(uint64_t *pll) { 417117328Sluigi uint64_t ret; 418115793Sticso 419115793Sticso bcopy (pll, &ret, sizeof(ret)); 420115793Sticso return ret; 421129389Sstefanf} 422115793Sticso 423117328Sluigi/* 424117328Sluigi * conditionally runs the command. 425117328Sluigi */ 426117469Sluigistatic int 427119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 428117328Sluigi{ 429117328Sluigi static int s = -1; /* the socket */ 430117328Sluigi int i; 431117577Sluigi 432117328Sluigi if (test_only) 433117328Sluigi return 0; 434117328Sluigi 435117328Sluigi if (s == -1) 436117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 437117328Sluigi if (s < 0) 438117328Sluigi err(EX_UNAVAILABLE, "socket"); 439117328Sluigi 440117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 441130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 442130281Sru optname == IP_FW_TABLE_GETSIZE) 443117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 444117328Sluigi (socklen_t *)optlen); 445117328Sluigi else 446117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 447117328Sluigi return i; 448117328Sluigi} 449117328Sluigi 45098943Sluigi/** 45198943Sluigi * match_token takes a table and a string, returns the value associated 452117328Sluigi * with the string (-1 in case of failure). 45398943Sluigi */ 45498943Sluigistatic int 45598943Sluigimatch_token(struct _s_x *table, char *string) 45698943Sluigi{ 45798943Sluigi struct _s_x *pt; 458117469Sluigi uint i = strlen(string); 45998943Sluigi 46098943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 46198943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 46298943Sluigi return pt->x; 46398943Sluigi return -1; 464129389Sstefanf} 46598943Sluigi 466117328Sluigi/** 467117328Sluigi * match_value takes a table and a value, returns the string associated 468117328Sluigi * with the value (NULL in case of failure). 469117328Sluigi */ 470117469Sluigistatic char const * 471117469Sluigimatch_value(struct _s_x *p, int value) 47298943Sluigi{ 47398943Sluigi for (; p->s != NULL; p++) 47498943Sluigi if (p->x == value) 47598943Sluigi return p->s; 47698943Sluigi return NULL; 47798943Sluigi} 47898943Sluigi 47998943Sluigi/* 480140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 481140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 482140271Sbrooks * of the second. A warning is printed to stderr in the case that the 483140271Sbrooks * first string is a sub-string of the second. 484140271Sbrooks * 485140271Sbrooks * This function will be removed in the future through the usual 486140271Sbrooks * deprecation process. 487140271Sbrooks */ 488140271Sbrooksstatic int 489140271Sbrooks_substrcmp(const char *str1, const char* str2) 490140271Sbrooks{ 491140271Sbrooks 492140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 493140271Sbrooks return 1; 494140271Sbrooks 495140271Sbrooks if (strlen(str1) != strlen(str2)) 496140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 497140271Sbrooks str1, str2); 498140271Sbrooks return 0; 499140271Sbrooks} 500140271Sbrooks 501140271Sbrooks/* 502140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 503140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 504140271Sbrooks * of the first. A warning is printed to stderr in the case that the 505140271Sbrooks * first string does not match the third. 506140271Sbrooks * 507140271Sbrooks * This function exists to warn about the bizzare construction 508140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 509140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 510140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 511140271Sbrooks * other string beginning with "by". 512140271Sbrooks * 513140271Sbrooks * This function will be removed in the future through the usual 514140271Sbrooks * deprecation process. 515140271Sbrooks */ 516140271Sbrooksstatic int 517140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 518140271Sbrooks{ 519140271Sbrooks 520140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 521140271Sbrooks return 1; 522140271Sbrooks 523140271Sbrooks if (strcmp(str1, str3) != 0) 524140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 525140271Sbrooks str1, str3); 526140271Sbrooks return 0; 527140271Sbrooks} 528140271Sbrooks 529140271Sbrooks/* 53098943Sluigi * prints one port, symbolic or numeric 53198943Sluigi */ 53298943Sluigistatic void 533117328Sluigiprint_port(int proto, uint16_t port) 53498943Sluigi{ 53598943Sluigi 53698943Sluigi if (proto == IPPROTO_ETHERTYPE) { 537117469Sluigi char const *s; 53898943Sluigi 53998943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 54098943Sluigi printf("%s", s); 54198943Sluigi else 54298943Sluigi printf("0x%04x", port); 54398943Sluigi } else { 54498943Sluigi struct servent *se = NULL; 54598943Sluigi if (do_resolv) { 54698943Sluigi struct protoent *pe = getprotobynumber(proto); 54798943Sluigi 54898943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 54998943Sluigi } 55098943Sluigi if (se) 55198943Sluigi printf("%s", se->s_name); 55298943Sluigi else 55398943Sluigi printf("%d", port); 55498943Sluigi } 55598943Sluigi} 55698943Sluigi 557117328Sluigistruct _s_x _port_name[] = { 558117328Sluigi {"dst-port", O_IP_DSTPORT}, 559117328Sluigi {"src-port", O_IP_SRCPORT}, 560117328Sluigi {"ipid", O_IPID}, 561117328Sluigi {"iplen", O_IPLEN}, 562117328Sluigi {"ipttl", O_IPTTL}, 563117328Sluigi {"mac-type", O_MAC_TYPE}, 564136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 565117328Sluigi {NULL, 0} 566117328Sluigi}; 567117328Sluigi 56898943Sluigi/* 569117328Sluigi * Print the values in a list 16-bit items of the types above. 57098943Sluigi * XXX todo: add support for mask. 57198943Sluigi */ 57298943Sluigistatic void 573102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 57498943Sluigi{ 575117328Sluigi uint16_t *p = cmd->ports; 57698943Sluigi int i; 577117469Sluigi char const *sep; 57898943Sluigi 57998943Sluigi if (cmd->o.len & F_NOT) 58098943Sluigi printf(" not"); 581116690Sluigi if (opcode != 0) { 582117328Sluigi sep = match_value(_port_name, opcode); 583117328Sluigi if (sep == NULL) 584116690Sluigi sep = "???"; 585116690Sluigi printf (" %s", sep); 586116690Sluigi } 587116690Sluigi sep = " "; 58898943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 58998943Sluigi printf(sep); 59098943Sluigi print_port(proto, p[0]); 59198943Sluigi if (p[0] != p[1]) { 59298943Sluigi printf("-"); 59398943Sluigi print_port(proto, p[1]); 59498943Sluigi } 59598943Sluigi sep = ","; 59698943Sluigi } 59798943Sluigi} 59898943Sluigi 59998943Sluigi/* 60098943Sluigi * Like strtol, but also translates service names into port numbers 60198943Sluigi * for some protocols. 60298943Sluigi * In particular: 60398943Sluigi * proto == -1 disables the protocol check; 60498943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 60598943Sluigi * proto == <some value in /etc/protocols> matches the values there. 606101628Sluigi * Returns *end == s in case the parameter is not found. 60798943Sluigi */ 60898943Sluigistatic int 60998943Sluigistrtoport(char *s, char **end, int base, int proto) 61098943Sluigi{ 611101628Sluigi char *p, *buf; 612101628Sluigi char *s1; 61398943Sluigi int i; 61498943Sluigi 615101628Sluigi *end = s; /* default - not found */ 616117577Sluigi if (*s == '\0') 617101628Sluigi return 0; /* not found */ 618106505Smaxim 61998943Sluigi if (isdigit(*s)) 62098943Sluigi return strtol(s, end, base); 62198943Sluigi 62298943Sluigi /* 623101628Sluigi * find separator. '\\' escapes the next char. 62498943Sluigi */ 625101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 626101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 627101628Sluigi s1++; 62898943Sluigi 629101628Sluigi buf = malloc(s1 - s + 1); 630101628Sluigi if (buf == NULL) 631101628Sluigi return 0; 632101628Sluigi 633101628Sluigi /* 634101628Sluigi * copy into a buffer skipping backslashes 635101628Sluigi */ 636101628Sluigi for (p = s, i = 0; p != s1 ; p++) 637117577Sluigi if (*p != '\\') 638101628Sluigi buf[i++] = *p; 639101628Sluigi buf[i++] = '\0'; 640101628Sluigi 64198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 642101628Sluigi i = match_token(ether_types, buf); 643101628Sluigi free(buf); 644101628Sluigi if (i != -1) { /* found */ 64598943Sluigi *end = s1; 64698943Sluigi return i; 64798943Sluigi } 64898943Sluigi } else { 64998943Sluigi struct protoent *pe = NULL; 65098943Sluigi struct servent *se; 65198943Sluigi 65298943Sluigi if (proto != 0) 65398943Sluigi pe = getprotobynumber(proto); 65498943Sluigi setservent(1); 655101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 656101628Sluigi free(buf); 65798943Sluigi if (se != NULL) { 65898943Sluigi *end = s1; 65998943Sluigi return ntohs(se->s_port); 66098943Sluigi } 66198943Sluigi } 662101628Sluigi return 0; /* not found */ 66398943Sluigi} 66498943Sluigi 66598943Sluigi/* 666136071Sgreen * Map between current altq queue id numbers and names. 667136071Sgreen */ 668136071Sgreenstatic int altq_fetched = 0; 669136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 670136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 671136071Sgreen 672136071Sgreenstatic void 673136071Sgreenaltq_set_enabled(int enabled) 674136071Sgreen{ 675136071Sgreen int pffd; 676136071Sgreen 677136071Sgreen pffd = open("/dev/pf", O_RDWR); 678136071Sgreen if (pffd == -1) 679136071Sgreen err(EX_UNAVAILABLE, 680136071Sgreen "altq support opening pf(4) control device"); 681136071Sgreen if (enabled) { 682136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 683136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 684136071Sgreen } else { 685136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 686136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 687136071Sgreen } 688136071Sgreen close(pffd); 689136071Sgreen} 690136071Sgreen 691136071Sgreenstatic void 692136071Sgreenaltq_fetch() 693136071Sgreen{ 694136071Sgreen struct pfioc_altq pfioc; 695136071Sgreen struct pf_altq *altq; 696136071Sgreen int pffd, mnr; 697136071Sgreen 698136071Sgreen if (altq_fetched) 699136071Sgreen return; 700136071Sgreen altq_fetched = 1; 701136071Sgreen pffd = open("/dev/pf", O_RDONLY); 702136071Sgreen if (pffd == -1) { 703136071Sgreen warn("altq support opening pf(4) control device"); 704136071Sgreen return; 705136071Sgreen } 706136071Sgreen bzero(&pfioc, sizeof(pfioc)); 707136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 708136071Sgreen warn("altq support getting queue list"); 709136071Sgreen close(pffd); 710136071Sgreen return; 711136071Sgreen } 712136071Sgreen mnr = pfioc.nr; 713136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 714136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 715136071Sgreen if (errno == EBUSY) 716136071Sgreen break; 717136071Sgreen warn("altq support getting queue list"); 718136071Sgreen close(pffd); 719136071Sgreen return; 720136071Sgreen } 721136071Sgreen if (pfioc.altq.qid == 0) 722136071Sgreen continue; 723136071Sgreen altq = malloc(sizeof(*altq)); 724136071Sgreen if (altq == NULL) 725136071Sgreen err(EX_OSERR, "malloc"); 726136071Sgreen *altq = pfioc.altq; 727136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 728136071Sgreen } 729136071Sgreen close(pffd); 730136071Sgreen} 731136071Sgreen 732136071Sgreenstatic u_int32_t 733136071Sgreenaltq_name_to_qid(const char *name) 734136071Sgreen{ 735136071Sgreen struct pf_altq *altq; 736136071Sgreen 737136071Sgreen altq_fetch(); 738136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 739136071Sgreen if (strcmp(name, altq->qname) == 0) 740136071Sgreen break; 741136071Sgreen if (altq == NULL) 742136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 743136071Sgreen return altq->qid; 744136071Sgreen} 745136071Sgreen 746136071Sgreenstatic const char * 747136071Sgreenaltq_qid_to_name(u_int32_t qid) 748136071Sgreen{ 749136071Sgreen struct pf_altq *altq; 750136071Sgreen 751136071Sgreen altq_fetch(); 752136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 753136071Sgreen if (qid == altq->qid) 754136071Sgreen break; 755136071Sgreen if (altq == NULL) 756136071Sgreen return NULL; 757136071Sgreen return altq->qname; 758136071Sgreen} 759136071Sgreen 760136071Sgreenstatic void 761136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 762136071Sgreen{ 763136071Sgreen *qid = altq_name_to_qid(av); 764136071Sgreen} 765136071Sgreen 766136071Sgreen/* 767117328Sluigi * Fill the body of the command with the list of port ranges. 76898943Sluigi */ 76998943Sluigistatic int 77098943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 77198943Sluigi{ 772117328Sluigi uint16_t a, b, *p = cmd->ports; 77398943Sluigi int i = 0; 774102087Sluigi char *s = av; 77598943Sluigi 776102087Sluigi while (*s) { 77798943Sluigi a = strtoport(av, &s, 0, proto); 77898943Sluigi if (s == av) /* no parameter */ 77998943Sluigi break; 78098943Sluigi if (*s == '-') { /* a range */ 78198943Sluigi av = s+1; 78298943Sluigi b = strtoport(av, &s, 0, proto); 78398943Sluigi if (s == av) /* no parameter */ 78498943Sluigi break; 78598943Sluigi p[0] = a; 78698943Sluigi p[1] = b; 787117328Sluigi } else if (*s == ',' || *s == '\0' ) 78898943Sluigi p[0] = p[1] = a; 789117328Sluigi else /* invalid separator */ 790101978Sluigi errx(EX_DATAERR, "invalid separator <%c> in <%s>\n", 791101978Sluigi *s, av); 792102087Sluigi i++; 793102087Sluigi p += 2; 79498943Sluigi av = s+1; 79598943Sluigi } 79698943Sluigi if (i > 0) { 79798943Sluigi if (i+1 > F_LEN_MASK) 798102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 79998943Sluigi cmd->o.len |= i+1; /* leave F_NOT and F_OR untouched */ 80098943Sluigi } 80198943Sluigi return i; 80298943Sluigi} 80398943Sluigi 80498943Sluigistatic struct _s_x icmpcodes[] = { 80598943Sluigi { "net", ICMP_UNREACH_NET }, 80698943Sluigi { "host", ICMP_UNREACH_HOST }, 80798943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 80898943Sluigi { "port", ICMP_UNREACH_PORT }, 80998943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 81098943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 81198943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 81298943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 81398943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 81498943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 81598943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 81698943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 81798943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 81898943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 81998943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 82098943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 82198943Sluigi { NULL, 0 } 82298943Sluigi}; 82398943Sluigi 82498943Sluigistatic void 82598943Sluigifill_reject_code(u_short *codep, char *str) 82698943Sluigi{ 82798943Sluigi int val; 82898943Sluigi char *s; 82998943Sluigi 83098943Sluigi val = strtoul(str, &s, 0); 83198943Sluigi if (s == str || *s != '\0' || val >= 0x100) 83298943Sluigi val = match_token(icmpcodes, str); 833102087Sluigi if (val < 0) 83498943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 83598943Sluigi *codep = val; 83698943Sluigi return; 83798943Sluigi} 83898943Sluigi 83998943Sluigistatic void 840117328Sluigiprint_reject_code(uint16_t code) 84198943Sluigi{ 842117469Sluigi char const *s = match_value(icmpcodes, code); 84398943Sluigi 84498943Sluigi if (s != NULL) 84599475Sluigi printf("unreach %s", s); 84698943Sluigi else 84799475Sluigi printf("unreach %u", code); 84898943Sluigi} 84998943Sluigi 85098943Sluigi/* 85198943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 85298943Sluigi * or -1 if the mask is not contiguous. 85398943Sluigi * XXX this needs a proper fix. 85498943Sluigi * This effectively works on masks in big-endian (network) format. 85598943Sluigi * when compiled on little endian architectures. 85698943Sluigi * 85798943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 85898943Sluigi * the first bit on the wire is bit 0 of the first byte. 85998943Sluigi * len is the max length in bits. 86098943Sluigi */ 86198943Sluigistatic int 862117577Sluigicontigmask(uint8_t *p, int len) 86398943Sluigi{ 86498943Sluigi int i, n; 865117577Sluigi 86698943Sluigi for (i=0; i<len ; i++) 86798943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 86898943Sluigi break; 86998943Sluigi for (n=i+1; n < len; n++) 87098943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 87198943Sluigi return -1; /* mask not contiguous */ 87298943Sluigi return i; 87398943Sluigi} 87498943Sluigi 87598943Sluigi/* 87698943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 87798943Sluigi * There is a specialized check for f_tcpflags. 87898943Sluigi */ 87998943Sluigistatic void 880117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 88198943Sluigi{ 882117469Sluigi char const *comma = ""; 88398943Sluigi int i; 884117577Sluigi uint8_t set = cmd->arg1 & 0xff; 885117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 88698943Sluigi 88798943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 88898943Sluigi printf(" setup"); 88998943Sluigi return; 89098943Sluigi } 89198943Sluigi 89298943Sluigi printf(" %s ", name); 89398943Sluigi for (i=0; list[i].x != 0; i++) { 89498943Sluigi if (set & list[i].x) { 89598943Sluigi set &= ~list[i].x; 89698943Sluigi printf("%s%s", comma, list[i].s); 89798943Sluigi comma = ","; 89898943Sluigi } 89998943Sluigi if (clear & list[i].x) { 90098943Sluigi clear &= ~list[i].x; 90198943Sluigi printf("%s!%s", comma, list[i].s); 90298943Sluigi comma = ","; 90398943Sluigi } 90498943Sluigi } 90598943Sluigi} 90698943Sluigi 90798943Sluigi/* 90898943Sluigi * Print the ip address contained in a command. 90998943Sluigi */ 91098943Sluigistatic void 911117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 91298943Sluigi{ 91398943Sluigi struct hostent *he = NULL; 914117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 915117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 91698943Sluigi 917102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 91898943Sluigi 91998943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 92098943Sluigi printf("me"); 92198943Sluigi return; 92298943Sluigi } 923130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 924130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 925130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 926130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 927130281Sru printf(",%u", *a); 928130281Sru printf(")"); 929130281Sru return; 930130281Sru } 93198943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 932117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 933116716Sluigi int i, j; 93498943Sluigi char comma = '{'; 93598943Sluigi 93698943Sluigi x = cmd->o.arg1 - 1; 93798943Sluigi x = htonl( ~x ); 93898943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 93998943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 940117577Sluigi contigmask((uint8_t *)&x, 32)); 94198943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 94298943Sluigi x &= 0xff; /* base */ 943116716Sluigi /* 944116716Sluigi * Print bits and ranges. 945116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 946116716Sluigi * If we have 3+ consecutive bits set, then print them as a 947116716Sluigi * range, otherwise only print the initial bit and rescan. 948116716Sluigi */ 94998943Sluigi for (i=0; i < cmd->o.arg1; i++) 950117328Sluigi if (map[i/32] & (1<<(i & 31))) { 951116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 952117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 953116716Sluigi break; 95498943Sluigi printf("%c%d", comma, i+x); 955116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 956116716Sluigi printf("-%d", j-1+x); 957116716Sluigi i = j-1; 958116716Sluigi } 95998943Sluigi comma = ','; 96098943Sluigi } 96198943Sluigi printf("}"); 96298943Sluigi return; 96398943Sluigi } 964117328Sluigi /* 965117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 966117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 967117328Sluigi * use that to count the number of entries. 968117328Sluigi */ 969117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 970117328Sluigi int mb = /* mask length */ 971117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 972117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 97398943Sluigi if (mb == 32 && do_resolv) 974117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 97598943Sluigi if (he != NULL) /* resolved to name */ 97698943Sluigi printf("%s", he->h_name); 97798943Sluigi else if (mb == 0) /* any */ 97898943Sluigi printf("any"); 97998943Sluigi else { /* numeric IP followed by some kind of mask */ 980117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 98198943Sluigi if (mb < 0) 982117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 98398943Sluigi else if (mb < 32) 98498943Sluigi printf("/%d", mb); 98598943Sluigi } 986117328Sluigi if (len > 1) 987117328Sluigi printf(","); 988117328Sluigi } 98998943Sluigi} 99098943Sluigi 99198943Sluigi/* 99298943Sluigi * prints a MAC address/mask pair 99398943Sluigi */ 99498943Sluigistatic void 995117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 99698943Sluigi{ 99798943Sluigi int l = contigmask(mask, 48); 99898943Sluigi 99998943Sluigi if (l == 0) 100098943Sluigi printf(" any"); 100198943Sluigi else { 100298943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 100398943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 100498943Sluigi if (l == -1) 100598943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 100698943Sluigi mask[0], mask[1], mask[2], 100798943Sluigi mask[3], mask[4], mask[5]); 100898943Sluigi else if (l < 48) 100998943Sluigi printf("/%d", l); 101098943Sluigi } 101198943Sluigi} 101298943Sluigi 101399475Sluigistatic void 101499475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 101599475Sluigi{ 1016117328Sluigi uint8_t type; 101798943Sluigi 101899475Sluigi cmd->d[0] = 0; 101999475Sluigi while (*av) { 102099475Sluigi if (*av == ',') 102199475Sluigi av++; 102299475Sluigi 102399475Sluigi type = strtoul(av, &av, 0); 102499475Sluigi 102599475Sluigi if (*av != ',' && *av != '\0') 102699475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 102799475Sluigi 102899475Sluigi if (type > 31) 102999475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 103099475Sluigi 103199475Sluigi cmd->d[0] |= 1 << type; 103299475Sluigi } 103399475Sluigi cmd->o.opcode = O_ICMPTYPE; 103499475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 103599475Sluigi} 103699475Sluigi 103799475Sluigistatic void 103899475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 103999475Sluigi{ 104099475Sluigi int i; 104199475Sluigi char sep= ' '; 104299475Sluigi 104399475Sluigi printf(" icmptypes"); 104499475Sluigi for (i = 0; i < 32; i++) { 104599475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 104699475Sluigi continue; 104799475Sluigi printf("%c%d", sep, i); 104899475Sluigi sep = ','; 104999475Sluigi } 105099475Sluigi} 105199475Sluigi 1052145246Sbrooks/* 1053145246Sbrooks * Print the ip address contained in a command. 1054145246Sbrooks */ 1055145246Sbrooksstatic void 1056145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1057145246Sbrooks{ 1058145246Sbrooks struct hostent *he = NULL; 1059145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1060145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1061145246Sbrooks char trad[255]; 1062145246Sbrooks 1063145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1064145246Sbrooks 1065145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1066145246Sbrooks printf("me6"); 1067145246Sbrooks return; 1068145246Sbrooks } 1069145246Sbrooks if (cmd->o.opcode == O_IP6) { 1070145246Sbrooks printf(" ipv6"); 1071145246Sbrooks return; 1072145246Sbrooks } 1073145246Sbrooks 1074145246Sbrooks /* 1075145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1076145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1077145246Sbrooks * use that to count the number of entries. 1078145246Sbrooks */ 1079145246Sbrooks 1080145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1081145246Sbrooks int mb = /* mask length */ 1082145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1083145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1084145246Sbrooks 1085145246Sbrooks if (mb == 128 && do_resolv) 1086145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1087145246Sbrooks if (he != NULL) /* resolved to name */ 1088145246Sbrooks printf("%s", he->h_name); 1089145246Sbrooks else if (mb == 0) /* any */ 1090145246Sbrooks printf("any"); 1091145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1092145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1093145246Sbrooks printf("Error ntop in print_ip6\n"); 1094145246Sbrooks printf("%s", trad ); 1095145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1096145246Sbrooks printf(":%s", 1097145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1098145246Sbrooks else if (mb < 128) 1099145246Sbrooks printf("/%d", mb); 1100145246Sbrooks } 1101145246Sbrooks if (len > 2) 1102145246Sbrooks printf(","); 1103145246Sbrooks } 1104145246Sbrooks} 1105145246Sbrooks 1106145246Sbrooksstatic void 1107145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1108145246Sbrooks{ 1109145246Sbrooks uint8_t type; 1110145246Sbrooks 1111145246Sbrooks cmd->d[0] = 0; 1112145246Sbrooks while (*av) { 1113145246Sbrooks if (*av == ',') 1114145246Sbrooks av++; 1115145246Sbrooks type = strtoul(av, &av, 0); 1116145246Sbrooks if (*av != ',' && *av != '\0') 1117145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1118145246Sbrooks /* 1119145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1120145246Sbrooks * we shouldn't be able to filter all possiable values 1121145246Sbrooks * regardless of the ability of the rest of the kernel to do 1122145246Sbrooks * anything useful with them. 1123145246Sbrooks */ 1124145246Sbrooks if (type > ICMP6_MAXTYPE) 1125145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1126145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1127145246Sbrooks } 1128145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1129145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1130145246Sbrooks} 1131145246Sbrooks 1132145246Sbrooks 1133145246Sbrooksstatic void 1134145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1135145246Sbrooks{ 1136145246Sbrooks int i, j; 1137145246Sbrooks char sep= ' '; 1138145246Sbrooks 1139145246Sbrooks printf(" ipv6 icmp6types"); 1140145246Sbrooks for (i = 0; i < 7; i++) 1141145246Sbrooks for (j=0; j < 32; ++j) { 1142145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1143145246Sbrooks continue; 1144145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1145145246Sbrooks sep = ','; 1146145246Sbrooks } 1147145246Sbrooks} 1148145246Sbrooks 1149145246Sbrooksstatic void 1150145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1151145246Sbrooks{ 1152145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1153145246Sbrooks char sep = ','; 1154145246Sbrooks 1155145246Sbrooks printf(" flow-id "); 1156145246Sbrooks for( i=0; i < limit; ++i) { 1157145246Sbrooks if (i == limit - 1) 1158145246Sbrooks sep = ' '; 1159145246Sbrooks printf("%d%c", cmd->d[i], sep); 1160145246Sbrooks } 1161145246Sbrooks} 1162145246Sbrooks 1163145246Sbrooks/* structure and define for the extension header in ipv6 */ 1164145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1165145246Sbrooks { "frag", EXT_FRAGMENT }, 1166145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1167145246Sbrooks { "route", EXT_ROUTING }, 1168145246Sbrooks { "ah", EXT_AH }, 1169145246Sbrooks { "esp", EXT_ESP }, 1170145246Sbrooks { NULL, 0 } 1171145246Sbrooks}; 1172145246Sbrooks 1173145246Sbrooks/* fills command for the extension header filtering */ 1174145246Sbrooksint 1175145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1176145246Sbrooks{ 1177145246Sbrooks int tok; 1178145246Sbrooks char *s = av; 1179145246Sbrooks 1180145246Sbrooks cmd->arg1 = 0; 1181145246Sbrooks 1182145246Sbrooks while(s) { 1183145246Sbrooks av = strsep( &s, ",") ; 1184145246Sbrooks tok = match_token(ext6hdrcodes, av); 1185145246Sbrooks switch (tok) { 1186145246Sbrooks case EXT_FRAGMENT: 1187145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1188145246Sbrooks break; 1189145246Sbrooks 1190145246Sbrooks case EXT_HOPOPTS: 1191145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1192145246Sbrooks break; 1193145246Sbrooks 1194145246Sbrooks case EXT_ROUTING: 1195145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1196145246Sbrooks break; 1197145246Sbrooks 1198145246Sbrooks case EXT_AH: 1199145246Sbrooks cmd->arg1 |= EXT_AH; 1200145246Sbrooks break; 1201145246Sbrooks 1202145246Sbrooks case EXT_ESP: 1203145246Sbrooks cmd->arg1 |= EXT_ESP; 1204145246Sbrooks break; 1205145246Sbrooks 1206145246Sbrooks default: 1207145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1208145246Sbrooks break; 1209145246Sbrooks } 1210145246Sbrooks } 1211145246Sbrooks if (cmd->arg1 == 0 ) 1212145246Sbrooks return 0; 1213145246Sbrooks cmd->opcode = O_EXT_HDR; 1214145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1215145246Sbrooks return 1; 1216145246Sbrooks} 1217145246Sbrooks 1218145246Sbrooksvoid 1219145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1220145246Sbrooks{ 1221145246Sbrooks char sep = ' '; 1222145246Sbrooks 1223145246Sbrooks printf(" extension header:"); 1224145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1225145246Sbrooks printf("%cfragmentation", sep); 1226145246Sbrooks sep = ','; 1227145246Sbrooks } 1228145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1229145246Sbrooks printf("%chop options", sep); 1230145246Sbrooks sep = ','; 1231145246Sbrooks } 1232145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1233145246Sbrooks printf("%crouting options", sep); 1234145246Sbrooks sep = ','; 1235145246Sbrooks } 1236145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1237145246Sbrooks printf("%cauthentication header", sep); 1238145246Sbrooks sep = ','; 1239145246Sbrooks } 1240145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1241145246Sbrooks printf("%cencapsulated security payload", sep); 1242145246Sbrooks } 1243145246Sbrooks} 1244145246Sbrooks 124598943Sluigi/* 124698943Sluigi * show_ipfw() prints the body of an ipfw rule. 124798943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 124898943Sluigi * a helper function to produce these entries if not provided explicitly. 1249102087Sluigi * The first argument is the list of fields we have, the second is 1250102087Sluigi * the list of fields we want to be printed. 1251101978Sluigi * 1252102087Sluigi * Special cases if we have provided a MAC header: 1253102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1254102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1255102087Sluigi * 1256102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 125798943Sluigi */ 1258101978Sluigi#define HAVE_PROTO 0x0001 1259101978Sluigi#define HAVE_SRCIP 0x0002 1260101978Sluigi#define HAVE_DSTIP 0x0004 1261101978Sluigi#define HAVE_MAC 0x0008 1262101978Sluigi#define HAVE_MACTYPE 0x0010 1263145246Sbrooks#define HAVE_PROTO6 0x0080 1264102087Sluigi#define HAVE_OPTIONS 0x8000 126598943Sluigi 1266101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 126798943Sluigistatic void 1268102087Sluigishow_prerequisites(int *flags, int want, int cmd) 126998943Sluigi{ 1270123495Sluigi if (comment_only) 1271123495Sluigi return; 1272102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1273102087Sluigi *flags |= HAVE_OPTIONS; 1274102087Sluigi 1275102087Sluigi if ( (*flags & (HAVE_MAC|HAVE_MACTYPE|HAVE_OPTIONS)) == HAVE_MAC && 1276102087Sluigi cmd != O_MAC_TYPE) { 1277102087Sluigi /* 1278102087Sluigi * mac-type was optimized out by the compiler, 1279102087Sluigi * restore it 1280102087Sluigi */ 1281102087Sluigi printf(" any"); 1282102087Sluigi *flags |= HAVE_MACTYPE | HAVE_OPTIONS; 1283102087Sluigi return; 1284101978Sluigi } 1285102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1286145246Sbrooks /* XXX BED: !(*flags & HAVE_PROTO) in patch */ 1287145246Sbrooks if ( !(*flags & HAVE_PROTO6) && (want & HAVE_PROTO6)) 1288145246Sbrooks printf(" ipv6"); 1289102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1290102087Sluigi printf(" ip"); 1291102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1292102087Sluigi printf(" from any"); 1293102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1294102087Sluigi printf(" to any"); 1295102087Sluigi } 129698943Sluigi *flags |= want; 129798943Sluigi} 129898943Sluigi 129998943Sluigistatic void 1300112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 130198943Sluigi{ 1302107291Skeramida static int twidth = 0; 130398943Sluigi int l; 130498943Sluigi ipfw_insn *cmd; 1305117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 130698943Sluigi int proto = 0; /* default */ 130798943Sluigi int flags = 0; /* prerequisites */ 130898943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1309136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 131098943Sluigi int or_block = 0; /* we are in an or block */ 1311117328Sluigi uint32_t set_disable; 131298943Sluigi 1313115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1314101628Sluigi 1315101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1316101628Sluigi if (!show_sets) 1317101628Sluigi return; 1318101628Sluigi else 1319101628Sluigi printf("# DISABLED "); 1320101628Sluigi } 132198943Sluigi printf("%05u ", rule->rulenum); 132298943Sluigi 1323117469Sluigi if (pcwidth>0 || bcwidth>0) 1324115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1325115793Sticso bcwidth, align_uint64(&rule->bcnt)); 132698943Sluigi 1327117472Sluigi if (do_time == 2) 1328117472Sluigi printf("%10u ", rule->timestamp); 1329117472Sluigi else if (do_time == 1) { 1330107291Skeramida char timestr[30]; 1331107291Skeramida time_t t = (time_t)0; 1332107291Skeramida 1333107291Skeramida if (twidth == 0) { 1334107291Skeramida strcpy(timestr, ctime(&t)); 1335107291Skeramida *strchr(timestr, '\n') = '\0'; 1336107291Skeramida twidth = strlen(timestr); 1337107291Skeramida } 133898943Sluigi if (rule->timestamp) { 1339117469Sluigi#if _FreeBSD_version < 500000 /* XXX check */ 1340117469Sluigi#define _long_to_time(x) (time_t)(x) 1341117469Sluigi#endif 1342107291Skeramida t = _long_to_time(rule->timestamp); 134398943Sluigi 134498943Sluigi strcpy(timestr, ctime(&t)); 134598943Sluigi *strchr(timestr, '\n') = '\0'; 134698943Sluigi printf("%s ", timestr); 134798943Sluigi } else { 1348107291Skeramida printf("%*s", twidth, " "); 134998943Sluigi } 135098943Sluigi } 135198943Sluigi 1352101628Sluigi if (show_sets) 1353101628Sluigi printf("set %d ", rule->set); 1354101628Sluigi 135598943Sluigi /* 1356107289Sluigi * print the optional "match probability" 1357107289Sluigi */ 1358107289Sluigi if (rule->cmd_len > 0) { 1359107289Sluigi cmd = rule->cmd ; 1360107289Sluigi if (cmd->opcode == O_PROB) { 1361107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1362107289Sluigi double d = 1.0 * p->d[0]; 1363107289Sluigi 1364107289Sluigi d = (d / 0x7fffffff); 1365107289Sluigi printf("prob %f ", d); 1366107289Sluigi } 1367107289Sluigi } 1368107289Sluigi 1369107289Sluigi /* 137098943Sluigi * first print actions 137198943Sluigi */ 137298943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 137398943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 137498943Sluigi switch(cmd->opcode) { 137598943Sluigi case O_CHECK_STATE: 137698943Sluigi printf("check-state"); 1377102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 137898943Sluigi break; 137998943Sluigi 138098943Sluigi case O_ACCEPT: 138198943Sluigi printf("allow"); 138298943Sluigi break; 138398943Sluigi 138498943Sluigi case O_COUNT: 138598943Sluigi printf("count"); 138698943Sluigi break; 138798943Sluigi 138898943Sluigi case O_DENY: 138998943Sluigi printf("deny"); 139098943Sluigi break; 139198943Sluigi 139299475Sluigi case O_REJECT: 139399475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 139499475Sluigi printf("reset"); 139599475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 139699475Sluigi printf("reject"); 139799475Sluigi else 139899475Sluigi print_reject_code(cmd->arg1); 139999475Sluigi break; 140099475Sluigi 140198943Sluigi case O_SKIPTO: 140298943Sluigi printf("skipto %u", cmd->arg1); 140398943Sluigi break; 140498943Sluigi 140598943Sluigi case O_PIPE: 140698943Sluigi printf("pipe %u", cmd->arg1); 140798943Sluigi break; 140898943Sluigi 140998943Sluigi case O_QUEUE: 141098943Sluigi printf("queue %u", cmd->arg1); 141198943Sluigi break; 141298943Sluigi 141398943Sluigi case O_DIVERT: 141498943Sluigi printf("divert %u", cmd->arg1); 141598943Sluigi break; 141698943Sluigi 141798943Sluigi case O_TEE: 141898943Sluigi printf("tee %u", cmd->arg1); 141998943Sluigi break; 142098943Sluigi 1421141351Sglebius case O_NETGRAPH: 1422141351Sglebius printf("netgraph %u", cmd->arg1); 1423141351Sglebius break; 1424141351Sglebius 1425141351Sglebius case O_NGTEE: 1426141351Sglebius printf("ngtee %u", cmd->arg1); 1427141351Sglebius break; 1428141351Sglebius 142998943Sluigi case O_FORWARD_IP: 143098943Sluigi { 143198943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 143298943Sluigi 143398943Sluigi printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 143498943Sluigi if (s->sa.sin_port) 1435103241Sluigi printf(",%d", s->sa.sin_port); 143698943Sluigi } 143798943Sluigi break; 143898943Sluigi 143998943Sluigi case O_LOG: /* O_LOG is printed last */ 144098943Sluigi logptr = (ipfw_insn_log *)cmd; 144198943Sluigi break; 144298943Sluigi 1443136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1444136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1445136071Sgreen break; 1446136071Sgreen 144798943Sluigi default: 1448136071Sgreen printf("** unrecognized action %d len %d ", 144998943Sluigi cmd->opcode, cmd->len); 145098943Sluigi } 145198943Sluigi } 145298943Sluigi if (logptr) { 145398943Sluigi if (logptr->max_log > 0) 145499909Sluigi printf(" log logamount %d", logptr->max_log); 145598943Sluigi else 145699909Sluigi printf(" log"); 145798943Sluigi } 1458136071Sgreen if (altqptr) { 1459136071Sgreen const char *qname; 1460102087Sluigi 1461136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1462136071Sgreen if (qname == NULL) 1463136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1464136071Sgreen else 1465136071Sgreen printf(" altq %s", qname); 1466136071Sgreen } 1467136071Sgreen 146898943Sluigi /* 1469102087Sluigi * then print the body. 147098943Sluigi */ 1471102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1472102098Sluigi if (!do_compact) 1473102098Sluigi printf(" ip from any to any"); 1474102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1475102087Sluigi } 1476102087Sluigi 1477123495Sluigi if (comment_only) 1478123495Sluigi comment = "..."; 1479123495Sluigi 148098943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 148198943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 148299475Sluigi /* useful alias */ 148399475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 148498943Sluigi 1485123495Sluigi if (comment_only) { 1486123495Sluigi if (cmd->opcode != O_NOP) 1487123495Sluigi continue; 1488123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1489123495Sluigi return; 1490123495Sluigi } 1491123495Sluigi 1492102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1493102087Sluigi 149498943Sluigi switch(cmd->opcode) { 1495117577Sluigi case O_PROB: 1496107289Sluigi break; /* done already */ 1497107289Sluigi 149898943Sluigi case O_PROBE_STATE: 149998943Sluigi break; /* no need to print anything here */ 150098943Sluigi 150198943Sluigi case O_MACADDR2: { 150298943Sluigi ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1503102087Sluigi 1504102087Sluigi if ((cmd->len & F_OR) && !or_block) 1505102087Sluigi printf(" {"); 150698943Sluigi if (cmd->len & F_NOT) 150798943Sluigi printf(" not"); 1508102087Sluigi printf(" MAC"); 1509102087Sluigi flags |= HAVE_MAC; 1510117577Sluigi print_mac(m->addr, m->mask); 1511117577Sluigi print_mac(m->addr + 6, m->mask + 6); 151298943Sluigi } 151398943Sluigi break; 151498943Sluigi 151598943Sluigi case O_MAC_TYPE: 1516102087Sluigi if ((cmd->len & F_OR) && !or_block) 1517102087Sluigi printf(" {"); 1518102087Sluigi print_newports((ipfw_insn_u16 *)cmd, IPPROTO_ETHERTYPE, 1519102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 1520102087Sluigi flags |= HAVE_MAC | HAVE_MACTYPE | HAVE_OPTIONS; 152198943Sluigi break; 152298943Sluigi 152398943Sluigi case O_IP_SRC: 1524130281Sru case O_IP_SRC_LOOKUP: 152598943Sluigi case O_IP_SRC_MASK: 152698943Sluigi case O_IP_SRC_ME: 152798943Sluigi case O_IP_SRC_SET: 1528102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 152998943Sluigi if (!(flags & HAVE_SRCIP)) 153098943Sluigi printf(" from"); 153198943Sluigi if ((cmd->len & F_OR) && !or_block) 153298943Sluigi printf(" {"); 1533102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1534102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 153598943Sluigi flags |= HAVE_SRCIP; 153698943Sluigi break; 153798943Sluigi 153898943Sluigi case O_IP_DST: 1539130281Sru case O_IP_DST_LOOKUP: 154098943Sluigi case O_IP_DST_MASK: 154198943Sluigi case O_IP_DST_ME: 154298943Sluigi case O_IP_DST_SET: 1543102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 154498943Sluigi if (!(flags & HAVE_DSTIP)) 154598943Sluigi printf(" to"); 154698943Sluigi if ((cmd->len & F_OR) && !or_block) 154798943Sluigi printf(" {"); 1548102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1549102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 155098943Sluigi flags |= HAVE_DSTIP; 155198943Sluigi break; 155298943Sluigi 1553145246Sbrooks case O_IP6_SRC: 1554145246Sbrooks case O_IP6_SRC_MASK: 1555145246Sbrooks case O_IP6_SRC_ME: 1556145246Sbrooks show_prerequisites(&flags, HAVE_PROTO6, 0); 1557145246Sbrooks if (!(flags & HAVE_SRCIP)) 1558145246Sbrooks printf(" from"); 1559145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1560145246Sbrooks printf(" {"); 1561145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1562145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1563145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1564145246Sbrooks break; 1565145246Sbrooks 1566145246Sbrooks case O_IP6_DST: 1567145246Sbrooks case O_IP6_DST_MASK: 1568145246Sbrooks case O_IP6_DST_ME: 1569145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1570145246Sbrooks if (!(flags & HAVE_DSTIP)) 1571145246Sbrooks printf(" to"); 1572145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1573145246Sbrooks printf(" {"); 1574145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1575145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1576145246Sbrooks flags |= HAVE_DSTIP; 1577145246Sbrooks break; 1578145246Sbrooks 1579145246Sbrooks case O_FLOW6ID: 1580145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1581145246Sbrooks flags |= HAVE_OPTIONS; 1582145246Sbrooks break; 1583145246Sbrooks 158498943Sluigi case O_IP_DSTPORT: 1585102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 158698943Sluigi case O_IP_SRCPORT: 1587102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1588101641Sluigi if ((cmd->len & F_OR) && !or_block) 1589101641Sluigi printf(" {"); 1590102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1591102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 159298943Sluigi break; 159398943Sluigi 159498943Sluigi case O_PROTO: { 1595145246Sbrooks struct protoent *pe = NULL; 159698943Sluigi 159798943Sluigi if ((cmd->len & F_OR) && !or_block) 159898943Sluigi printf(" {"); 159998943Sluigi if (cmd->len & F_NOT) 160098943Sluigi printf(" not"); 160198943Sluigi proto = cmd->arg1; 1602145567Sbrooks pe = getprotobynumber(cmd->arg1); 1603102087Sluigi if (flags & HAVE_OPTIONS) 1604102087Sluigi printf(" proto"); 160598943Sluigi if (pe) 160698943Sluigi printf(" %s", pe->p_name); 160798943Sluigi else 160898943Sluigi printf(" %u", cmd->arg1); 160998943Sluigi } 161098943Sluigi flags |= HAVE_PROTO; 161198943Sluigi break; 1612106505Smaxim 161398943Sluigi default: /*options ... */ 1614102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 161598943Sluigi if ((cmd->len & F_OR) && !or_block) 161698943Sluigi printf(" {"); 161798943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 161898943Sluigi printf(" not"); 161998943Sluigi switch(cmd->opcode) { 162098943Sluigi case O_FRAG: 162198943Sluigi printf(" frag"); 162298943Sluigi break; 162398943Sluigi 162498943Sluigi case O_IN: 162598943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 162698943Sluigi break; 162798943Sluigi 1628136073Sgreen case O_DIVERTED: 1629136073Sgreen switch (cmd->arg1) { 1630136073Sgreen case 3: 1631136073Sgreen printf(" diverted"); 1632136073Sgreen break; 1633136073Sgreen case 1: 1634136073Sgreen printf(" diverted-loopback"); 1635136073Sgreen break; 1636136073Sgreen case 2: 1637136073Sgreen printf(" diverted-output"); 1638136073Sgreen break; 1639136073Sgreen default: 1640136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1641136073Sgreen break; 1642136073Sgreen } 1643136073Sgreen break; 1644136073Sgreen 164598943Sluigi case O_LAYER2: 164698943Sluigi printf(" layer2"); 164798943Sluigi break; 164898943Sluigi case O_XMIT: 164998943Sluigi case O_RECV: 1650140423Sglebius case O_VIA: 1651140423Sglebius { 1652117469Sluigi char const *s; 165398943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 165498943Sluigi 165598943Sluigi if (cmd->opcode == O_XMIT) 165698943Sluigi s = "xmit"; 165798943Sluigi else if (cmd->opcode == O_RECV) 165898943Sluigi s = "recv"; 1659117469Sluigi else /* if (cmd->opcode == O_VIA) */ 166098943Sluigi s = "via"; 166198943Sluigi if (cmdif->name[0] == '\0') 166299475Sluigi printf(" %s %s", s, 166399475Sluigi inet_ntoa(cmdif->p.ip)); 1664140423Sglebius else 1665140423Sglebius printf(" %s %s", s, cmdif->name); 1666140423Sglebius 166798943Sluigi break; 1668140423Sglebius } 166998943Sluigi case O_IPID: 1670116690Sluigi if (F_LEN(cmd) == 1) 1671116690Sluigi printf(" ipid %u", cmd->arg1 ); 1672116690Sluigi else 1673116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1674116690Sluigi O_IPID); 167598943Sluigi break; 167698943Sluigi 167798943Sluigi case O_IPTTL: 1678116690Sluigi if (F_LEN(cmd) == 1) 1679116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1680116690Sluigi else 1681116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1682116690Sluigi O_IPTTL); 168398943Sluigi break; 168498943Sluigi 168598943Sluigi case O_IPVER: 168698943Sluigi printf(" ipver %u", cmd->arg1 ); 168798943Sluigi break; 168898943Sluigi 168999475Sluigi case O_IPPRECEDENCE: 169099475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 169199475Sluigi break; 169299475Sluigi 169398943Sluigi case O_IPLEN: 1694116690Sluigi if (F_LEN(cmd) == 1) 1695116690Sluigi printf(" iplen %u", cmd->arg1 ); 1696116690Sluigi else 1697116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1698116690Sluigi O_IPLEN); 169998943Sluigi break; 170098943Sluigi 1701101116Sluigi case O_IPOPT: 170298943Sluigi print_flags("ipoptions", cmd, f_ipopts); 170398943Sluigi break; 170498943Sluigi 170599475Sluigi case O_IPTOS: 170699475Sluigi print_flags("iptos", cmd, f_iptos); 170799475Sluigi break; 170899475Sluigi 170999475Sluigi case O_ICMPTYPE: 171099475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 171199475Sluigi break; 171299475Sluigi 171398943Sluigi case O_ESTAB: 171498943Sluigi printf(" established"); 171598943Sluigi break; 171698943Sluigi 1717136075Sgreen case O_TCPDATALEN: 1718136075Sgreen if (F_LEN(cmd) == 1) 1719136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1720136075Sgreen else 1721136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1722136075Sgreen O_TCPDATALEN); 1723136075Sgreen break; 1724136075Sgreen 172598943Sluigi case O_TCPFLAGS: 172698943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 172798943Sluigi break; 172898943Sluigi 172998943Sluigi case O_TCPOPTS: 173098943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 173198943Sluigi break; 173298943Sluigi 173398943Sluigi case O_TCPWIN: 173498943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 173598943Sluigi break; 173698943Sluigi 173798943Sluigi case O_TCPACK: 173898943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 173998943Sluigi break; 174098943Sluigi 174198943Sluigi case O_TCPSEQ: 174298943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 174398943Sluigi break; 174498943Sluigi 174598943Sluigi case O_UID: 174698943Sluigi { 174798943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 174898943Sluigi 174998943Sluigi if (pwd) 175098943Sluigi printf(" uid %s", pwd->pw_name); 175198943Sluigi else 175298943Sluigi printf(" uid %u", cmd32->d[0]); 175398943Sluigi } 175498943Sluigi break; 175598943Sluigi 175698943Sluigi case O_GID: 175798943Sluigi { 175898943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 175998943Sluigi 176098943Sluigi if (grp) 176198943Sluigi printf(" gid %s", grp->gr_name); 176298943Sluigi else 176398943Sluigi printf(" gid %u", cmd32->d[0]); 176498943Sluigi } 176598943Sluigi break; 176698943Sluigi 1767133600Scsjp case O_JAIL: 1768133600Scsjp printf(" jail %d", cmd32->d[0]); 1769133600Scsjp break; 1770133600Scsjp 1771112250Scjc case O_VERREVPATH: 1772112250Scjc printf(" verrevpath"); 1773112250Scjc break; 1774116919Sluigi 1775128575Sandre case O_VERSRCREACH: 1776128575Sandre printf(" versrcreach"); 1777128575Sandre break; 1778128575Sandre 1779133387Sandre case O_ANTISPOOF: 1780133387Sandre printf(" antispoof"); 1781133387Sandre break; 1782133387Sandre 1783117241Sluigi case O_IPSEC: 1784117241Sluigi printf(" ipsec"); 1785117241Sluigi break; 1786117241Sluigi 1787117469Sluigi case O_NOP: 1788117626Sluigi comment = (char *)(cmd + 1); 1789117469Sluigi break; 1790117469Sluigi 179198943Sluigi case O_KEEP_STATE: 179298943Sluigi printf(" keep-state"); 179398943Sluigi break; 179498943Sluigi 179598943Sluigi case O_LIMIT: 179698943Sluigi { 179798943Sluigi struct _s_x *p = limit_masks; 179898943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1799117328Sluigi uint8_t x = c->limit_mask; 1800117469Sluigi char const *comma = " "; 180198943Sluigi 180298943Sluigi printf(" limit"); 1803117577Sluigi for (; p->x != 0 ; p++) 180499909Sluigi if ((x & p->x) == p->x) { 180598943Sluigi x &= ~p->x; 180698943Sluigi printf("%s%s", comma, p->s); 180798943Sluigi comma = ","; 180898943Sluigi } 180998943Sluigi printf(" %d", c->conn_limit); 181098943Sluigi } 181198943Sluigi break; 181298943Sluigi 1813145246Sbrooks case O_IP6: 1814145246Sbrooks printf(" ipv6"); 1815145246Sbrooks break; 1816145246Sbrooks 1817145246Sbrooks case O_ICMP6TYPE: 1818145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 1819145246Sbrooks break; 1820145246Sbrooks 1821145246Sbrooks case O_EXT_HDR: 1822145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 1823145246Sbrooks break; 1824145246Sbrooks 182598943Sluigi default: 182698943Sluigi printf(" [opcode %d len %d]", 182798943Sluigi cmd->opcode, cmd->len); 182898943Sluigi } 182998943Sluigi } 183098943Sluigi if (cmd->len & F_OR) { 183198943Sluigi printf(" or"); 183298943Sluigi or_block = 1; 183398943Sluigi } else if (or_block) { 183498943Sluigi printf(" }"); 183598943Sluigi or_block = 0; 183698943Sluigi } 183798943Sluigi } 1838102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 1839117626Sluigi if (comment) 1840117626Sluigi printf(" // %s", comment); 184198943Sluigi printf("\n"); 184298943Sluigi} 184398943Sluigi 184498943Sluigistatic void 1845112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 184698943Sluigi{ 184798943Sluigi struct protoent *pe; 184898943Sluigi struct in_addr a; 1849115793Sticso uint16_t rulenum; 185098943Sluigi 185198943Sluigi if (!do_expired) { 185298943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 185398943Sluigi return; 185498943Sluigi } 1855115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1856117328Sluigi printf("%05d", rulenum); 1857117469Sluigi if (pcwidth>0 || bcwidth>0) 1858117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 1859117328Sluigi align_uint64(&d->pcnt), bcwidth, 1860117328Sluigi align_uint64(&d->bcnt), d->expire); 186198943Sluigi switch (d->dyn_type) { 186298943Sluigi case O_LIMIT_PARENT: 186398943Sluigi printf(" PARENT %d", d->count); 186498943Sluigi break; 186598943Sluigi case O_LIMIT: 186698943Sluigi printf(" LIMIT"); 186798943Sluigi break; 186898943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1869106505Smaxim printf(" STATE"); 187098943Sluigi break; 187198943Sluigi } 187298943Sluigi 187398943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 187498943Sluigi printf(" %s", pe->p_name); 187598943Sluigi else 187698943Sluigi printf(" proto %u", d->id.proto); 187798943Sluigi 187898943Sluigi a.s_addr = htonl(d->id.src_ip); 187998943Sluigi printf(" %s %d", inet_ntoa(a), d->id.src_port); 188098943Sluigi 188198943Sluigi a.s_addr = htonl(d->id.dst_ip); 188298943Sluigi printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 188398943Sluigi printf("\n"); 188498943Sluigi} 188598943Sluigi 1886117469Sluigistatic int 188798943Sluigisort_q(const void *pa, const void *pb) 188898943Sluigi{ 188998943Sluigi int rev = (do_sort < 0); 189098943Sluigi int field = rev ? -do_sort : do_sort; 189198943Sluigi long long res = 0; 189298943Sluigi const struct dn_flow_queue *a = pa; 189398943Sluigi const struct dn_flow_queue *b = pb; 189498943Sluigi 189598943Sluigi switch (field) { 189698943Sluigi case 1: /* pkts */ 189798943Sluigi res = a->len - b->len; 189898943Sluigi break; 189998943Sluigi case 2: /* bytes */ 190098943Sluigi res = a->len_bytes - b->len_bytes; 190198943Sluigi break; 190298943Sluigi 190398943Sluigi case 3: /* tot pkts */ 190498943Sluigi res = a->tot_pkts - b->tot_pkts; 190598943Sluigi break; 190698943Sluigi 190798943Sluigi case 4: /* tot bytes */ 190898943Sluigi res = a->tot_bytes - b->tot_bytes; 190998943Sluigi break; 191098943Sluigi } 191198943Sluigi if (res < 0) 191298943Sluigi res = -1; 191398943Sluigi if (res > 0) 191498943Sluigi res = 1; 191598943Sluigi return (int)(rev ? res : -res); 191698943Sluigi} 191798943Sluigi 191898943Sluigistatic void 191998943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 192098943Sluigi{ 192198943Sluigi int l; 1922145246Sbrooks int index_printed, indexes = 0; 1923145246Sbrooks char buff[255]; 1924145246Sbrooks struct protoent *pe; 192598943Sluigi 192698943Sluigi if (fs->rq_elements == 0) 192798943Sluigi return; 192898943Sluigi 192998943Sluigi if (do_sort != 0) 193098943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 1931145246Sbrooks 1932145246Sbrooks /* Print IPv4 flows */ 1933145246Sbrooks index_printed = 0; 193498943Sluigi for (l = 0; l < fs->rq_elements; l++) { 193598943Sluigi struct in_addr ina; 193698943Sluigi 1937145246Sbrooks /* XXX: Should check for IPv4 flows */ 1938145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 1939145246Sbrooks continue; 1940145246Sbrooks 1941145246Sbrooks if (!index_printed) { 1942145246Sbrooks index_printed = 1; 1943145246Sbrooks if (indexes > 0) /* currently a no-op */ 1944145246Sbrooks printf("\n"); 1945145246Sbrooks indexes++; 1946145246Sbrooks printf(" " 1947145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 1948145246Sbrooks fs->flow_mask.proto, 1949145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 1950145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 1951145246Sbrooks 1952145246Sbrooks printf("BKT Prot ___Source IP/port____ " 1953145246Sbrooks "____Dest. IP/port____ " 1954145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 1955145246Sbrooks } 1956145246Sbrooks 195798943Sluigi printf("%3d ", q[l].hash_slot); 195898943Sluigi pe = getprotobynumber(q[l].id.proto); 195998943Sluigi if (pe) 196098943Sluigi printf("%-4s ", pe->p_name); 196198943Sluigi else 196298943Sluigi printf("%4u ", q[l].id.proto); 1963145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 196498943Sluigi printf("%15s/%-5d ", 196598943Sluigi inet_ntoa(ina), q[l].id.src_port); 196698943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 196798943Sluigi printf("%15s/%-5d ", 196898943Sluigi inet_ntoa(ina), q[l].id.dst_port); 196998943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 197098943Sluigi q[l].tot_pkts, q[l].tot_bytes, 197198943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 197298943Sluigi if (verbose) 197398943Sluigi printf(" S %20qd F %20qd\n", 197498943Sluigi q[l].S, q[l].F); 197598943Sluigi } 1976145246Sbrooks 1977145246Sbrooks /* Print IPv6 flows */ 1978145246Sbrooks index_printed = 0; 1979145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 1980145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 1981145246Sbrooks continue; 1982145246Sbrooks 1983145246Sbrooks if (!index_printed) { 1984145246Sbrooks index_printed = 1; 1985145246Sbrooks if (indexes > 0) 1986145246Sbrooks printf("\n"); 1987145246Sbrooks indexes++; 1988145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 1989145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 1990145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 1991145246Sbrooks buff, sizeof(buff)); 1992145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 1993145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 1994145246Sbrooks buff, sizeof(buff) ); 1995145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 1996145246Sbrooks 1997145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 1998145246Sbrooks "______________Source IPv6/port_______________ " 1999145246Sbrooks "_______________Dest. IPv6/port_______________ " 2000145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2001145246Sbrooks } 2002145246Sbrooks printf("%3d ", q[l].hash_slot); 2003145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2004145246Sbrooks if (pe != NULL) 2005145246Sbrooks printf("%9s ", pe->p_name); 2006145246Sbrooks else 2007145246Sbrooks printf("%9u ", q[l].id.proto); 2008145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2009145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2010145246Sbrooks q[l].id.src_port); 2011145246Sbrooks printf(" %39s/%-5d ", 2012145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2013145246Sbrooks q[l].id.dst_port); 2014145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2015145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2016145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2017145246Sbrooks if (verbose) 2018145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2019145246Sbrooks } 202098943Sluigi} 202198943Sluigi 202298943Sluigistatic void 202398943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 202498943Sluigi{ 202598943Sluigi int l; 202698943Sluigi char qs[30]; 202798943Sluigi char plr[30]; 202898943Sluigi char red[90]; /* Display RED parameters */ 202998943Sluigi 203098943Sluigi l = fs->qsize; 203198943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 203298943Sluigi if (l >= 8192) 203398943Sluigi sprintf(qs, "%d KB", l / 1024); 203498943Sluigi else 203598943Sluigi sprintf(qs, "%d B", l); 203698943Sluigi } else 203798943Sluigi sprintf(qs, "%3d sl.", l); 203898943Sluigi if (fs->plr) 203998943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 204098943Sluigi else 204198943Sluigi plr[0] = '\0'; 204298943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 204398943Sluigi sprintf(red, 204498943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 204598943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 204698943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 204798943Sluigi SCALE_VAL(fs->min_th), 204898943Sluigi SCALE_VAL(fs->max_th), 204998943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 205098943Sluigi else 205198943Sluigi sprintf(red, "droptail"); 205298943Sluigi 205398943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 205498943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 205598943Sluigi} 205698943Sluigi 205798943Sluigistatic void 2058117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 205998943Sluigi{ 2060117469Sluigi int rulenum; 206198943Sluigi void *next = data; 206298943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 206398943Sluigi struct dn_flow_set *fs; 206498943Sluigi struct dn_flow_queue *q; 206598943Sluigi int l; 206698943Sluigi 206798943Sluigi if (ac > 0) 206898943Sluigi rulenum = strtoul(*av++, NULL, 10); 206998943Sluigi else 207098943Sluigi rulenum = 0; 207198943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 207298943Sluigi double b = p->bandwidth; 207398943Sluigi char buf[30]; 207498943Sluigi char prefix[80]; 207598943Sluigi 207698943Sluigi if (p->next != (struct dn_pipe *)DN_IS_PIPE) 207798943Sluigi break; /* done with pipes, now queues */ 207898943Sluigi 207998943Sluigi /* 208098943Sluigi * compute length, as pipe have variable size 208198943Sluigi */ 208298943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2083117469Sluigi next = (char *)p + l; 208498943Sluigi nbytes -= l; 208598943Sluigi 2086134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 208798943Sluigi continue; 208898943Sluigi 208998943Sluigi /* 209098943Sluigi * Print rate (or clocking interface) 209198943Sluigi */ 209298943Sluigi if (p->if_name[0] != '\0') 209398943Sluigi sprintf(buf, "%s", p->if_name); 209498943Sluigi else if (b == 0) 209598943Sluigi sprintf(buf, "unlimited"); 209698943Sluigi else if (b >= 1000000) 209798943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 209898943Sluigi else if (b >= 1000) 209998943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 210098943Sluigi else 210198943Sluigi sprintf(buf, "%7.3f bit/s ", b); 210298943Sluigi 210398943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 210498943Sluigi p->pipe_nr, buf, p->delay); 210598943Sluigi print_flowset_parms(&(p->fs), prefix); 210698943Sluigi if (verbose) 210798943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2108106505Smaxim 210998943Sluigi q = (struct dn_flow_queue *)(p+1); 211098943Sluigi list_queues(&(p->fs), q); 211198943Sluigi } 211298943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 211398943Sluigi char prefix[80]; 211498943Sluigi 211598943Sluigi if (fs->next != (struct dn_flow_set *)DN_IS_QUEUE) 211698943Sluigi break; 211798943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2118117469Sluigi next = (char *)fs + l; 211998943Sluigi nbytes -= l; 2120134225Spjd 2121134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2122134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2123134225Spjd continue; 2124134225Spjd } 2125134225Spjd 212698943Sluigi q = (struct dn_flow_queue *)(fs+1); 212798943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 212898943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 212998943Sluigi print_flowset_parms(fs, prefix); 213098943Sluigi list_queues(fs, q); 213198943Sluigi } 213298943Sluigi} 213398943Sluigi 2134101978Sluigi/* 2135101978Sluigi * This one handles all set-related commands 2136101978Sluigi * ipfw set { show | enable | disable } 2137101978Sluigi * ipfw set swap X Y 2138101978Sluigi * ipfw set move X to Y 2139101978Sluigi * ipfw set move rule X to Y 2140101978Sluigi */ 214198943Sluigistatic void 2142101978Sluigisets_handler(int ac, char *av[]) 2143101978Sluigi{ 2144117328Sluigi uint32_t set_disable, masks[2]; 2145101978Sluigi int i, nbytes; 2146117328Sluigi uint16_t rulenum; 2147117328Sluigi uint8_t cmd, new_set; 2148101978Sluigi 2149101978Sluigi ac--; 2150101978Sluigi av++; 2151101978Sluigi 2152101978Sluigi if (!ac) 2153101978Sluigi errx(EX_USAGE, "set needs command"); 2154140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2155101978Sluigi void *data; 2156117469Sluigi char const *msg; 2157101978Sluigi 2158101978Sluigi nbytes = sizeof(struct ip_fw); 2159117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2160117328Sluigi err(EX_OSERR, "calloc"); 2161119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2162101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2163115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2164115793Sticso &set_disable, sizeof(set_disable)); 2165101978Sluigi 2166117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2167117577Sluigi if ((set_disable & (1<<i))) { 2168101978Sluigi printf("%s %d", msg, i); 2169101978Sluigi msg = ""; 2170101978Sluigi } 2171101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2172117655Sluigi for (i = 0; i < RESVD_SET; i++) 2173117577Sluigi if (!(set_disable & (1<<i))) { 2174101978Sluigi printf("%s %d", msg, i); 2175101978Sluigi msg = ""; 2176101978Sluigi } 2177101978Sluigi printf("\n"); 2178140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2179101978Sluigi ac--; av++; 2180101978Sluigi if (ac != 2) 2181101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2182101978Sluigi rulenum = atoi(av[0]); 2183101978Sluigi new_set = atoi(av[1]); 2184117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2185101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2186117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2187101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2188101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2189117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2190140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2191101978Sluigi ac--; av++; 2192140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2193101978Sluigi cmd = 2; 2194101978Sluigi ac--; av++; 2195101978Sluigi } else 2196101978Sluigi cmd = 3; 2197140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2198101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2199101978Sluigi rulenum = atoi(av[0]); 2200101978Sluigi new_set = atoi(av[2]); 2201117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2202101978Sluigi (cmd == 2 && rulenum == 65535) ) 2203101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2204117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2205101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2206101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2207117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2208140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2209140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2210140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2211101978Sluigi 2212101978Sluigi ac--; av++; 2213101978Sluigi masks[0] = masks[1] = 0; 2214101978Sluigi 2215101978Sluigi while (ac) { 2216101978Sluigi if (isdigit(**av)) { 2217101978Sluigi i = atoi(*av); 2218117655Sluigi if (i < 0 || i > RESVD_SET) 2219101978Sluigi errx(EX_DATAERR, 2220101978Sluigi "invalid set number %d\n", i); 2221101978Sluigi masks[which] |= (1<<i); 2222140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2223101978Sluigi which = 0; 2224140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2225101978Sluigi which = 1; 2226101978Sluigi else 2227101978Sluigi errx(EX_DATAERR, 2228101978Sluigi "invalid set command %s\n", *av); 2229101978Sluigi av++; ac--; 2230101978Sluigi } 2231101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2232101978Sluigi errx(EX_DATAERR, 2233101978Sluigi "cannot enable and disable the same set\n"); 2234101978Sluigi 2235117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2236101978Sluigi if (i) 2237101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2238101978Sluigi } else 2239101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2240101978Sluigi} 2241101978Sluigi 2242101978Sluigistatic void 2243109126Sdillonsysctl_handler(int ac, char *av[], int which) 2244109126Sdillon{ 2245109126Sdillon ac--; 2246109126Sdillon av++; 2247109126Sdillon 2248119668Smaxim if (ac == 0) { 2249109126Sdillon warnx("missing keyword to enable/disable\n"); 2250140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2251116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2252116770Sluigi &which, sizeof(which)); 2253140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2254116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2255116770Sluigi &which, sizeof(which)); 2256140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2257116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2258116770Sluigi &which, sizeof(which)); 2259140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2260116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2261116770Sluigi &which, sizeof(which)); 2262140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2263116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2264116770Sluigi &which, sizeof(which)); 2265140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2266136071Sgreen altq_set_enabled(which); 2267109126Sdillon } else { 2268109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2269109126Sdillon } 2270109126Sdillon} 2271109126Sdillon 2272109126Sdillonstatic void 2273117469Sluigilist(int ac, char *av[], int show_counters) 227498943Sluigi{ 227598943Sluigi struct ip_fw *r; 227698943Sluigi ipfw_dyn_rule *dynrules, *d; 227798943Sluigi 2278117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2279117469Sluigi char *lim; 2280117469Sluigi void *data = NULL; 2281112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 228298943Sluigi int exitval = EX_OK; 228398943Sluigi int lac; 228498943Sluigi char **lav; 2285117469Sluigi u_long rnum, last; 228698943Sluigi char *endptr; 228798943Sluigi int seen = 0; 228898943Sluigi 228998943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 229098943Sluigi int nalloc = 1024; /* start somewhere... */ 229198943Sluigi 2292135036Smaxim last = 0; 2293135036Smaxim 2294117328Sluigi if (test_only) { 2295117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2296117328Sluigi return; 2297117328Sluigi } 2298117328Sluigi 229998943Sluigi ac--; 230098943Sluigi av++; 230198943Sluigi 230298943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 230398943Sluigi nbytes = nalloc; 230498943Sluigi 230598943Sluigi while (nbytes >= nalloc) { 230698943Sluigi nalloc = nalloc * 2 + 200; 230798943Sluigi nbytes = nalloc; 230898943Sluigi if ((data = realloc(data, nbytes)) == NULL) 230998943Sluigi err(EX_OSERR, "realloc"); 2310119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 231198943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 231298943Sluigi do_pipe ? "DUMMYNET" : "FW"); 231398943Sluigi } 231498943Sluigi 231598943Sluigi if (do_pipe) { 231698943Sluigi list_pipes(data, nbytes, ac, av); 231798943Sluigi goto done; 231898943Sluigi } 231998943Sluigi 232098943Sluigi /* 232198943Sluigi * Count static rules. They have variable size so we 232298943Sluigi * need to scan the list to count them. 232398943Sluigi */ 2324117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2325117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2326117469Sluigi ++nstat, r = NEXT(r) ) 232798943Sluigi ; /* nothing */ 232898943Sluigi 232998943Sluigi /* 233098943Sluigi * Count dynamic rules. This is easier as they have 233198943Sluigi * fixed size. 233298943Sluigi */ 2333117469Sluigi r = NEXT(r); 233498943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2335117469Sluigi n = (char *)r - (char *)data; 233698943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 233798943Sluigi 2338112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2339112189Smaxim bcwidth = pcwidth = 0; 2340117469Sluigi if (show_counters) { 2341117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2342112189Smaxim /* packet counter */ 2343115793Sticso width = snprintf(NULL, 0, "%llu", 2344115793Sticso align_uint64(&r->pcnt)); 2345112189Smaxim if (width > pcwidth) 2346112189Smaxim pcwidth = width; 2347112189Smaxim 2348112189Smaxim /* byte counter */ 2349115793Sticso width = snprintf(NULL, 0, "%llu", 2350115793Sticso align_uint64(&r->bcnt)); 2351112189Smaxim if (width > bcwidth) 2352112189Smaxim bcwidth = width; 2353112189Smaxim } 2354112189Smaxim } 2355112189Smaxim if (do_dynamic && ndyn) { 2356112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2357115793Sticso width = snprintf(NULL, 0, "%llu", 2358115793Sticso align_uint64(&d->pcnt)); 2359112189Smaxim if (width > pcwidth) 2360112189Smaxim pcwidth = width; 2361112189Smaxim 2362115793Sticso width = snprintf(NULL, 0, "%llu", 2363115793Sticso align_uint64(&d->bcnt)); 2364112189Smaxim if (width > bcwidth) 2365112189Smaxim bcwidth = width; 2366112189Smaxim } 2367112189Smaxim } 236898943Sluigi /* if no rule numbers were specified, list all rules */ 236998943Sluigi if (ac == 0) { 2370117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 2371112189Smaxim show_ipfw(r, pcwidth, bcwidth); 237298943Sluigi 237398943Sluigi if (do_dynamic && ndyn) { 237498943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 237598943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 2376112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 237798943Sluigi } 237898943Sluigi goto done; 237998943Sluigi } 238098943Sluigi 238198943Sluigi /* display specific rules requested on command line */ 238298943Sluigi 238398943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 238498943Sluigi /* convert command line rule # */ 2385117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2386117469Sluigi if (*endptr == '-') 2387117469Sluigi last = strtoul(endptr+1, &endptr, 10); 238898943Sluigi if (*endptr) { 238998943Sluigi exitval = EX_USAGE; 239098943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 239198943Sluigi continue; 239298943Sluigi } 2393117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2394117469Sluigi if (r->rulenum > last) 239598943Sluigi break; 2396117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2397112189Smaxim show_ipfw(r, pcwidth, bcwidth); 239898943Sluigi seen = 1; 239998943Sluigi } 240098943Sluigi } 240198943Sluigi if (!seen) { 240298943Sluigi /* give precedence to other error(s) */ 240398943Sluigi if (exitval == EX_OK) 240498943Sluigi exitval = EX_UNAVAILABLE; 240598943Sluigi warnx("rule %lu does not exist", rnum); 240698943Sluigi } 240798943Sluigi } 240898943Sluigi 240998943Sluigi if (do_dynamic && ndyn) { 241098943Sluigi printf("## Dynamic rules:\n"); 241198943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2412145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2413117469Sluigi if (*endptr == '-') 2414117469Sluigi last = strtoul(endptr+1, &endptr, 10); 241598943Sluigi if (*endptr) 241698943Sluigi /* already warned */ 241798943Sluigi continue; 241898943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2419115793Sticso uint16_t rulenum; 2420115793Sticso 2421115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2422115793Sticso if (rulenum > rnum) 242398943Sluigi break; 2424117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2425112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 242698943Sluigi } 242798943Sluigi } 242898943Sluigi } 242998943Sluigi 243098943Sluigi ac = 0; 243198943Sluigi 243298943Sluigidone: 243398943Sluigi free(data); 243498943Sluigi 243598943Sluigi if (exitval != EX_OK) 243698943Sluigi exit(exitval); 2437117469Sluigi#undef NEXT 243898943Sluigi} 243998943Sluigi 244098943Sluigistatic void 244198943Sluigishow_usage(void) 244298943Sluigi{ 244398943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 244498943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 244598943Sluigi); 244698943Sluigi exit(EX_USAGE); 244798943Sluigi} 244898943Sluigi 244998943Sluigistatic void 245098943Sluigihelp(void) 245198943Sluigi{ 2452117328Sluigi fprintf(stderr, 2453117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2454123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2455117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2456117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2457117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2458117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2459130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 246098943Sluigi"\n" 2461136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2462145246Sbrooks"ACTION: check-state | allow | count | deny | unreach CODE | skipto N |\n" 246398943Sluigi" {divert|tee} PORT | forward ADDR | pipe N | queue N\n" 2464136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 246598943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2466145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2467145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2468130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2469145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2470145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2471117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2472117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2473136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2474145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2475145246Sbrooks" {dst-port|src-port} LIST |\n" 2476117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2477117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2478117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2479145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2480117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2481117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2482136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 248398943Sluigi); 248498943Sluigiexit(0); 248598943Sluigi} 248698943Sluigi 248798943Sluigi 248898943Sluigistatic int 248998943Sluigilookup_host (char *host, struct in_addr *ipaddr) 249098943Sluigi{ 249198943Sluigi struct hostent *he; 249298943Sluigi 249398943Sluigi if (!inet_aton(host, ipaddr)) { 249498943Sluigi if ((he = gethostbyname(host)) == NULL) 249598943Sluigi return(-1); 249698943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 249798943Sluigi } 249898943Sluigi return(0); 249998943Sluigi} 250098943Sluigi 250198943Sluigi/* 250298943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 250398943Sluigi * Update length as appropriate. 250498943Sluigi * The following formats are allowed: 250598943Sluigi * me returns O_IP_*_ME 250698943Sluigi * 1.2.3.4 single IP address 250798943Sluigi * 1.2.3.4:5.6.7.8 address:mask 250898943Sluigi * 1.2.3.4/24 address/mask 250998943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2510117328Sluigi * We can have multiple comma-separated address/mask entries. 251198943Sluigi */ 251298943Sluigistatic void 251398943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 251498943Sluigi{ 2515117328Sluigi int len = 0; 2516117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 251798943Sluigi 251898943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 251998943Sluigi 2520140271Sbrooks if (_substrcmp(av, "any") == 0) 252198943Sluigi return; 252298943Sluigi 2523140271Sbrooks if (_substrcmp(av, "me") == 0) { 252498943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 252598943Sluigi return; 252698943Sluigi } 252798943Sluigi 2528140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2529130281Sru char *p = strchr(av + 6, ','); 2530130281Sru 2531130281Sru if (p) 2532130281Sru *p++ = '\0'; 2533130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2534130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2535130281Sru if (p) { 2536130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2537130281Sru d[0] = strtoul(p, NULL, 0); 2538130281Sru } else 2539130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2540130281Sru return; 2541130281Sru } 2542130281Sru 2543117328Sluigi while (av) { 2544117328Sluigi /* 2545117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2546117328Sluigi * ',' indicating another address follows, '{' indicating a 2547117328Sluigi * set of addresses of unspecified size. 2548117328Sluigi */ 2549117328Sluigi char *p = strpbrk(av, "/:,{"); 2550117328Sluigi int masklen; 2551117328Sluigi char md; 2552117328Sluigi 255398943Sluigi if (p) { 255498943Sluigi md = *p; 255598943Sluigi *p++ = '\0'; 2556117328Sluigi } else 2557117328Sluigi md = '\0'; 255898943Sluigi 2559117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 256098943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 256198943Sluigi switch (md) { 256298943Sluigi case ':': 2563117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 256498943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 256598943Sluigi break; 256698943Sluigi case '/': 2567117328Sluigi masklen = atoi(p); 2568117328Sluigi if (masklen == 0) 2569117328Sluigi d[1] = htonl(0); /* mask */ 2570117328Sluigi else if (masklen > 32) 257198943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 257298943Sluigi else 2573117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 257498943Sluigi break; 2575117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2576117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2577117328Sluigi *(--p) = md; 2578117328Sluigi break; 2579117328Sluigi 2580117328Sluigi case ',': /* single address plus continuation */ 2581117328Sluigi *(--p) = md; 2582117328Sluigi /* FALLTHROUGH */ 2583117328Sluigi case 0: /* initialization value */ 258498943Sluigi default: 2585117328Sluigi d[1] = htonl(~0); /* force /32 */ 258698943Sluigi break; 258798943Sluigi } 2588117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2589117328Sluigi /* find next separator */ 259098943Sluigi if (p) 2591117328Sluigi p = strpbrk(p, ",{"); 2592117328Sluigi if (p && *p == '{') { 2593117328Sluigi /* 2594117328Sluigi * We have a set of addresses. They are stored as follows: 2595117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2596117328Sluigi * addr is the base address IN HOST FORMAT 2597117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2598117328Sluigi * the next multiple of 32) with bits set 2599117328Sluigi * for each host in the map. 2600117328Sluigi */ 2601117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 260298943Sluigi int low, high; 2603117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 260498943Sluigi 2605117328Sluigi if (len > 0) 2606117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2607117328Sluigi if (i < 24 || i > 31) 2608117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2609117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2610117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 261198943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 261298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2613101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2614117328Sluigi map[i] = 0; /* clear map */ 261598943Sluigi 2616117328Sluigi av = p + 1; 2617117328Sluigi low = d[0] & 0xff; 261898943Sluigi high = low + cmd->o.arg1 - 1; 2619117328Sluigi /* 2620117328Sluigi * Here, i stores the previous value when we specify a range 2621117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2622117328Sluigi * have no previous value. 2623117328Sluigi */ 2624116716Sluigi i = -1; /* previous value in a range */ 262598943Sluigi while (isdigit(*av)) { 262698943Sluigi char *s; 2627117328Sluigi int a = strtol(av, &s, 0); 262898943Sluigi 2629117328Sluigi if (s == av) { /* no parameter */ 2630117328Sluigi if (*av != '}') 2631117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2632117328Sluigi if (i != -1) 2633117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2634117328Sluigi break; 2635117328Sluigi } 2636117328Sluigi if (a < low || a > high) 2637117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 263898943Sluigi a, low, high); 263998943Sluigi a -= low; 2640116716Sluigi if (i == -1) /* no previous in range */ 2641116716Sluigi i = a; 2642116716Sluigi else { /* check that range is valid */ 2643116716Sluigi if (i > a) 2644116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2645116716Sluigi i+low, a+low); 2646116716Sluigi if (*s == '-') 2647116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2648116716Sluigi } 2649116716Sluigi for (; i <= a; i++) 2650117328Sluigi map[i/32] |= 1<<(i & 31); 2651116716Sluigi i = -1; 2652116716Sluigi if (*s == '-') 2653116716Sluigi i = a; 2654117328Sluigi else if (*s == '}') 2655116716Sluigi break; 265698943Sluigi av = s+1; 265798943Sluigi } 265898943Sluigi return; 265998943Sluigi } 2660117328Sluigi av = p; 2661117328Sluigi if (av) /* then *av must be a ',' */ 2662117328Sluigi av++; 266398943Sluigi 2664117328Sluigi /* Check this entry */ 2665117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2666117328Sluigi /* 2667117328Sluigi * 'any' turns the entire list into a NOP. 2668117328Sluigi * 'not any' never matches, so it is removed from the 2669117328Sluigi * list unless it is the only item, in which case we 2670117328Sluigi * report an error. 2671117328Sluigi */ 2672117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2673117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2674117328Sluigi errx(EX_DATAERR, "not any never matches"); 2675117328Sluigi } 2676117328Sluigi /* else do nothing and skip this entry */ 2677128067Smaxim return; 2678117328Sluigi } 2679117328Sluigi /* A single IP can be stored in an optimized format */ 2680117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 268198943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2682117328Sluigi return; 2683117328Sluigi } 2684117328Sluigi len += 2; /* two words... */ 2685117328Sluigi d += 2; 2686117328Sluigi } /* end while */ 2687117328Sluigi cmd->o.len |= len+1; 268898943Sluigi} 268998943Sluigi 269098943Sluigi 2691145246Sbrooks/* Try to find ipv6 address by hostname */ 2692145246Sbrooksstatic int 2693145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2694145246Sbrooks{ 2695145246Sbrooks struct hostent *he; 2696145246Sbrooks 2697145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2698145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2699145246Sbrooks return(-1); 2700145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2701145246Sbrooks } 2702145246Sbrooks return(0); 2703145246Sbrooks} 2704145246Sbrooks 2705145246Sbrooks 2706145246Sbrooks/* n2mask sets n bits of the mask */ 2707145246Sbrooksstatic void 2708145246Sbrooksn2mask(struct in6_addr *mask, int n) 2709145246Sbrooks{ 2710145246Sbrooks static int minimask[9] = 2711145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2712145246Sbrooks u_char *p; 2713145246Sbrooks 2714145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2715145246Sbrooks p = (u_char *) mask; 2716145246Sbrooks for (; n > 0; p++, n -= 8) { 2717145246Sbrooks if (n >= 8) 2718145246Sbrooks *p = 0xff; 2719145246Sbrooks else 2720145246Sbrooks *p = minimask[n]; 2721145246Sbrooks } 2722145246Sbrooks return; 2723145246Sbrooks} 2724145246Sbrooks 2725145246Sbrooks 272698943Sluigi/* 2727145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2728145246Sbrooks * Update length as appropriate. 2729145246Sbrooks * The following formats are allowed: 2730145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2731145246Sbrooks * me returns O_IP6_*_ME 2732145246Sbrooks * 2733145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2734145246Sbrooks * 03f1::234:123:0342/24 address/mask 2735145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2736145246Sbrooks * 2737145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2738145246Sbrooks * are typically random past the initial prefix. 2739145246Sbrooks * Return 1 on success, 0 on failure. 2740145246Sbrooks */ 2741145246Sbrooksstatic int 2742145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2743145246Sbrooks{ 2744145246Sbrooks int len = 0; 2745145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2746145246Sbrooks /* 2747145246Sbrooks * Needed for multiple address. 2748145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2749145246Sbrooks */ 2750145246Sbrooks 2751145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2752145246Sbrooks 2753145246Sbrooks if (strcmp(av, "any") == 0) 2754145246Sbrooks return (1); 2755145246Sbrooks 2756145246Sbrooks 2757145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2758145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2759145246Sbrooks return (1); 2760145246Sbrooks } 2761145246Sbrooks 2762145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2763145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2764145246Sbrooks return (1); 2765145246Sbrooks } 2766145246Sbrooks 2767145246Sbrooks av = strdup(av); 2768145246Sbrooks while (av) { 2769145246Sbrooks /* 2770145246Sbrooks * After the address we can have '/' indicating a mask, 2771145246Sbrooks * or ',' indicating another address follows. 2772145246Sbrooks */ 2773145246Sbrooks 2774145246Sbrooks char *p; 2775145246Sbrooks int masklen; 2776145246Sbrooks char md = '\0'; 2777145246Sbrooks 2778145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 2779145246Sbrooks md = *p; /* save the separator */ 2780145246Sbrooks *p = '\0'; /* terminate address string */ 2781145246Sbrooks p++; /* and skip past it */ 2782145246Sbrooks } 2783145246Sbrooks /* now p points to NULL, mask or next entry */ 2784145246Sbrooks 2785145246Sbrooks /* lookup stores address in *d as a side effect */ 2786145246Sbrooks if (lookup_host6(av, d) != 0) { 2787145246Sbrooks /* XXX: failed. Free memory and go */ 2788145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 2789145246Sbrooks } 2790145246Sbrooks /* next, look at the mask, if any */ 2791145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 2792145246Sbrooks if (masklen > 128 || masklen < 0) 2793145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 2794145246Sbrooks else 2795145246Sbrooks n2mask(&d[1], masklen); 2796145246Sbrooks 2797145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 2798145246Sbrooks 2799145246Sbrooks /* find next separator */ 2800145246Sbrooks 2801145246Sbrooks if (md == '/') { /* find separator past the mask */ 2802145246Sbrooks p = strpbrk(p, ","); 2803145246Sbrooks if (p != NULL) 2804145246Sbrooks p++; 2805145246Sbrooks } 2806145246Sbrooks av = p; 2807145246Sbrooks 2808145246Sbrooks /* Check this entry */ 2809145246Sbrooks if (masklen == 0) { 2810145246Sbrooks /* 2811145246Sbrooks * 'any' turns the entire list into a NOP. 2812145246Sbrooks * 'not any' never matches, so it is removed from the 2813145246Sbrooks * list unless it is the only item, in which case we 2814145246Sbrooks * report an error. 2815145246Sbrooks */ 2816145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 2817145246Sbrooks errx(EX_DATAERR, "not any never matches"); 2818145246Sbrooks continue; 2819145246Sbrooks } 2820145246Sbrooks 2821145246Sbrooks /* 2822145246Sbrooks * A single IP can be stored alone 2823145246Sbrooks */ 2824145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 2825145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 2826145246Sbrooks break; 2827145246Sbrooks } 2828145246Sbrooks 2829145246Sbrooks /* Update length and pointer to arguments */ 2830145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 2831145246Sbrooks d += 2; 2832145246Sbrooks } /* end while */ 2833145246Sbrooks 2834145246Sbrooks /* 2835145246Sbrooks * Total length of the command, remember that 1 is the size of 2836145246Sbrooks * the base command. 2837145246Sbrooks */ 2838145246Sbrooks cmd->o.len |= len+1; 2839145246Sbrooks free(av); 2840145246Sbrooks return (1); 2841145246Sbrooks} 2842145246Sbrooks 2843145246Sbrooks/* 2844145246Sbrooks * fills command for ipv6 flow-id filtering 2845145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 2846145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 2847145246Sbrooks * additional flow-id we want to filter, the basic is 1 2848145246Sbrooks */ 2849145246Sbrooksvoid 2850145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 2851145246Sbrooks{ 2852145246Sbrooks u_int32_t type; /* Current flow number */ 2853145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 2854145246Sbrooks char *s = av; 2855145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 2856145246Sbrooks 2857145246Sbrooks while (s) { 2858145246Sbrooks av = strsep( &s, ",") ; 2859145246Sbrooks type = strtoul(av, &av, 0); 2860145246Sbrooks if (*av != ',' && *av != '\0') 2861145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2862145246Sbrooks if (type > 0xfffff) 2863145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 2864145246Sbrooks cmd->d[nflow] |= type; 2865145246Sbrooks nflow++; 2866145246Sbrooks } 2867145246Sbrooks if( nflow > 0 ) { 2868145246Sbrooks cmd->o.opcode = O_FLOW6ID; 2869145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 2870145246Sbrooks cmd->o.arg1 = nflow; 2871145246Sbrooks } 2872145246Sbrooks else { 2873145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2874145246Sbrooks } 2875145246Sbrooks} 2876145246Sbrooks 2877145246Sbrooksstatic ipfw_insn * 2878145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 2879145246Sbrooks{ 2880145246Sbrooks 2881145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2882145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2883145246Sbrooks ; 2884145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2885145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 2886145246Sbrooks } else if (F_LEN(cmd) == 2887145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2888145246Sbrooks /* single IP, no mask*/ 2889145246Sbrooks cmd->opcode = O_IP6_SRC; 2890145246Sbrooks } else { /* addr/mask opt */ 2891145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 2892145246Sbrooks } 2893145246Sbrooks return cmd; 2894145246Sbrooks} 2895145246Sbrooks 2896145246Sbrooksstatic ipfw_insn * 2897145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 2898145246Sbrooks{ 2899145246Sbrooks 2900145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2901145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2902145246Sbrooks ; 2903145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2904145246Sbrooks cmd->opcode = O_IP6_DST_ME; 2905145246Sbrooks } else if (F_LEN(cmd) == 2906145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2907145246Sbrooks /* single IP, no mask*/ 2908145246Sbrooks cmd->opcode = O_IP6_DST; 2909145246Sbrooks } else { /* addr/mask opt */ 2910145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 2911145246Sbrooks } 2912145246Sbrooks return cmd; 2913145246Sbrooks} 2914145246Sbrooks 2915145246Sbrooks 2916145246Sbrooks/* 291798943Sluigi * helper function to process a set of flags and set bits in the 291898943Sluigi * appropriate masks. 291998943Sluigi */ 292098943Sluigistatic void 292198943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 292298943Sluigi struct _s_x *flags, char *p) 292398943Sluigi{ 2924117328Sluigi uint8_t set=0, clear=0; 292598943Sluigi 292698943Sluigi while (p && *p) { 292798943Sluigi char *q; /* points to the separator */ 292898943Sluigi int val; 2929117328Sluigi uint8_t *which; /* mask we are working on */ 293098943Sluigi 293198943Sluigi if (*p == '!') { 293298943Sluigi p++; 293398943Sluigi which = &clear; 293498943Sluigi } else 293598943Sluigi which = &set; 293698943Sluigi q = strchr(p, ','); 293798943Sluigi if (q) 293898943Sluigi *q++ = '\0'; 293998943Sluigi val = match_token(flags, p); 294098943Sluigi if (val <= 0) 294198943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 2942117328Sluigi *which |= (uint8_t)val; 294398943Sluigi p = q; 294498943Sluigi } 294598943Sluigi cmd->opcode = opcode; 294698943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 294798943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 294898943Sluigi} 294998943Sluigi 295098943Sluigi 295198943Sluigistatic void 295298943Sluigidelete(int ac, char *av[]) 295398943Sluigi{ 2954117328Sluigi uint32_t rulenum; 2955117469Sluigi struct dn_pipe p; 295698943Sluigi int i; 295798943Sluigi int exitval = EX_OK; 2958101628Sluigi int do_set = 0; 295998943Sluigi 2960117469Sluigi memset(&p, 0, sizeof p); 296198943Sluigi 296298943Sluigi av++; ac--; 2963130013Scsjp NEED1("missing rule specification"); 2964140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 2965101978Sluigi do_set = 1; /* delete set */ 2966101628Sluigi ac--; av++; 2967101978Sluigi } 296898943Sluigi 296998943Sluigi /* Rule number */ 297098943Sluigi while (ac && isdigit(**av)) { 297198943Sluigi i = atoi(*av); av++; ac--; 297298943Sluigi if (do_pipe) { 297398943Sluigi if (do_pipe == 1) 2974117469Sluigi p.pipe_nr = i; 297598943Sluigi else 2976117469Sluigi p.fs.fs_nr = i; 2977117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 297898943Sluigi if (i) { 297998943Sluigi exitval = 1; 298098943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 2981117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 298298943Sluigi } 298398943Sluigi } else { 2984101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 2985117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 298698943Sluigi if (i) { 298798943Sluigi exitval = EX_UNAVAILABLE; 298898943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 298998943Sluigi rulenum); 299098943Sluigi } 299198943Sluigi } 299298943Sluigi } 299398943Sluigi if (exitval != EX_OK) 299498943Sluigi exit(exitval); 299598943Sluigi} 299698943Sluigi 299798943Sluigi 299898943Sluigi/* 299998943Sluigi * fill the interface structure. We do not check the name as we can 300098943Sluigi * create interfaces dynamically, so checking them at insert time 300198943Sluigi * makes relatively little sense. 3002121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3003121816Sbrooks * patterns which match interfaces. 300498943Sluigi */ 300598943Sluigistatic void 300698943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 300798943Sluigi{ 300898943Sluigi cmd->name[0] = '\0'; 300998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 301098943Sluigi 301198943Sluigi /* Parse the interface or address */ 3012140271Sbrooks if (strcmp(arg, "any") == 0) 301398943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 301498943Sluigi else if (!isdigit(*arg)) { 3015121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3016121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 301798943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 301898943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 301998943Sluigi} 302098943Sluigi 302198943Sluigistatic void 302298943Sluigiconfig_pipe(int ac, char **av) 302398943Sluigi{ 3024117469Sluigi struct dn_pipe p; 302598943Sluigi int i; 302698943Sluigi char *end; 302798943Sluigi void *par = NULL; 302898943Sluigi 3029117469Sluigi memset(&p, 0, sizeof p); 303098943Sluigi 303198943Sluigi av++; ac--; 303298943Sluigi /* Pipe number */ 303398943Sluigi if (ac && isdigit(**av)) { 303498943Sluigi i = atoi(*av); av++; ac--; 303598943Sluigi if (do_pipe == 1) 3036117469Sluigi p.pipe_nr = i; 303798943Sluigi else 3038117469Sluigi p.fs.fs_nr = i; 303998943Sluigi } 304099475Sluigi while (ac > 0) { 304198943Sluigi double d; 304298943Sluigi int tok = match_token(dummynet_params, *av); 304398943Sluigi ac--; av++; 304498943Sluigi 304598943Sluigi switch(tok) { 3046101978Sluigi case TOK_NOERROR: 3047117469Sluigi p.fs.flags_fs |= DN_NOERROR; 3048101978Sluigi break; 3049101978Sluigi 305098943Sluigi case TOK_PLR: 305198943Sluigi NEED1("plr needs argument 0..1\n"); 305298943Sluigi d = strtod(av[0], NULL); 305398943Sluigi if (d > 1) 305498943Sluigi d = 1; 305598943Sluigi else if (d < 0) 305698943Sluigi d = 0; 3057117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 305898943Sluigi ac--; av++; 305998943Sluigi break; 306098943Sluigi 306198943Sluigi case TOK_QUEUE: 306298943Sluigi NEED1("queue needs queue size\n"); 306398943Sluigi end = NULL; 3064117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 306598943Sluigi if (*end == 'K' || *end == 'k') { 3066117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 3067117469Sluigi p.fs.qsize *= 1024; 3068140271Sbrooks } else if (*end == 'B' || 3069140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 3070117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 307198943Sluigi } 307298943Sluigi ac--; av++; 307398943Sluigi break; 307498943Sluigi 307598943Sluigi case TOK_BUCKETS: 307698943Sluigi NEED1("buckets needs argument\n"); 3077117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 307898943Sluigi ac--; av++; 307998943Sluigi break; 308098943Sluigi 308198943Sluigi case TOK_MASK: 308298943Sluigi NEED1("mask needs mask specifier\n"); 308398943Sluigi /* 308498943Sluigi * per-flow queue, mask is dst_ip, dst_port, 308598943Sluigi * src_ip, src_port, proto measured in bits 308698943Sluigi */ 308798943Sluigi par = NULL; 308898943Sluigi 3089145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 309098943Sluigi end = NULL; 309198943Sluigi 309298943Sluigi while (ac >= 1) { 3093117328Sluigi uint32_t *p32 = NULL; 3094117328Sluigi uint16_t *p16 = NULL; 3095145246Sbrooks uint32_t *p20 = NULL; 3096145246Sbrooks struct in6_addr *pa6 = NULL; 3097145246Sbrooks uint32_t a; 309898943Sluigi 309998943Sluigi tok = match_token(dummynet_params, *av); 310098943Sluigi ac--; av++; 310198943Sluigi switch(tok) { 310298943Sluigi case TOK_ALL: 310398943Sluigi /* 310498943Sluigi * special case, all bits significant 310598943Sluigi */ 3106117469Sluigi p.fs.flow_mask.dst_ip = ~0; 3107117469Sluigi p.fs.flow_mask.src_ip = ~0; 3108117469Sluigi p.fs.flow_mask.dst_port = ~0; 3109117469Sluigi p.fs.flow_mask.src_port = ~0; 3110117469Sluigi p.fs.flow_mask.proto = ~0; 3111145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 3112145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 3113145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 3114117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 311598943Sluigi goto end_mask; 311698943Sluigi 311798943Sluigi case TOK_DSTIP: 3118117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 311998943Sluigi break; 312098943Sluigi 312198943Sluigi case TOK_SRCIP: 3122117469Sluigi p32 = &p.fs.flow_mask.src_ip; 312398943Sluigi break; 312498943Sluigi 3125145246Sbrooks case TOK_DSTIP6: 3126145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 3127145246Sbrooks break; 3128145246Sbrooks 3129145246Sbrooks case TOK_SRCIP6: 3130145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 3131145246Sbrooks break; 3132145246Sbrooks 3133145246Sbrooks case TOK_FLOWID: 3134145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 3135145246Sbrooks break; 3136145246Sbrooks 313798943Sluigi case TOK_DSTPORT: 3138117469Sluigi p16 = &p.fs.flow_mask.dst_port; 313998943Sluigi break; 314098943Sluigi 314198943Sluigi case TOK_SRCPORT: 3142117469Sluigi p16 = &p.fs.flow_mask.src_port; 314398943Sluigi break; 314498943Sluigi 314598943Sluigi case TOK_PROTO: 314698943Sluigi break; 314798943Sluigi 314898943Sluigi default: 314998943Sluigi ac++; av--; /* backtrack */ 315098943Sluigi goto end_mask; 315198943Sluigi } 315298943Sluigi if (ac < 1) 315398943Sluigi errx(EX_USAGE, "mask: value missing"); 315498943Sluigi if (*av[0] == '/') { 315598943Sluigi a = strtoul(av[0]+1, &end, 0); 3156145246Sbrooks if (pa6 == NULL) 3157145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 3158106505Smaxim } else 315999909Sluigi a = strtoul(av[0], &end, 0); 316098943Sluigi if (p32 != NULL) 316198943Sluigi *p32 = a; 316298943Sluigi else if (p16 != NULL) { 3163139821Sbrooks if (a > 0xFFFF) 316498943Sluigi errx(EX_DATAERR, 3165144687Sbrooks "port mask must be 16 bit"); 3166117328Sluigi *p16 = (uint16_t)a; 3167145246Sbrooks } else if (p20 != NULL) { 3168145246Sbrooks if (a > 0xfffff) 3169145246Sbrooks errx(EX_DATAERR, 3170145246Sbrooks "flow_id mask must be 20 bit"); 3171145246Sbrooks *p20 = (uint32_t)a; 3172145246Sbrooks } else if (pa6 != NULL) { 3173145246Sbrooks if (a < 0 || a > 128) 3174145246Sbrooks errx(EX_DATAERR, 3175145246Sbrooks "in6addr invalid mask len"); 3176145246Sbrooks else 3177145246Sbrooks n2mask(pa6, a); 317898943Sluigi } else { 3179139821Sbrooks if (a > 0xFF) 318098943Sluigi errx(EX_DATAERR, 3181144687Sbrooks "proto mask must be 8 bit"); 3182117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 318398943Sluigi } 318498943Sluigi if (a != 0) 3185117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 318698943Sluigi ac--; av++; 318798943Sluigi } /* end while, config masks */ 318898943Sluigiend_mask: 318998943Sluigi break; 319098943Sluigi 319198943Sluigi case TOK_RED: 319298943Sluigi case TOK_GRED: 319398943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 3194117469Sluigi p.fs.flags_fs |= DN_IS_RED; 319598943Sluigi if (tok == TOK_GRED) 3196117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 319798943Sluigi /* 319898943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 319998943Sluigi */ 320098943Sluigi if ((end = strsep(&av[0], "/"))) { 320198943Sluigi double w_q = strtod(end, NULL); 320298943Sluigi if (w_q > 1 || w_q <= 0) 320398943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 3204117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 320598943Sluigi } 320698943Sluigi if ((end = strsep(&av[0], "/"))) { 3207117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 320898943Sluigi if (*end == 'K' || *end == 'k') 3209117469Sluigi p.fs.min_th *= 1024; 321098943Sluigi } 321198943Sluigi if ((end = strsep(&av[0], "/"))) { 3212117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 321398943Sluigi if (*end == 'K' || *end == 'k') 3214117469Sluigi p.fs.max_th *= 1024; 321598943Sluigi } 321698943Sluigi if ((end = strsep(&av[0], "/"))) { 321798943Sluigi double max_p = strtod(end, NULL); 321898943Sluigi if (max_p > 1 || max_p <= 0) 321998943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 3220117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 322198943Sluigi } 322298943Sluigi ac--; av++; 322398943Sluigi break; 322498943Sluigi 322598943Sluigi case TOK_DROPTAIL: 3226117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 322798943Sluigi break; 3228106505Smaxim 322998943Sluigi case TOK_BW: 323098943Sluigi NEED1("bw needs bandwidth or interface\n"); 323198943Sluigi if (do_pipe != 1) 323298943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 323398943Sluigi /* 323498943Sluigi * set clocking interface or bandwidth value 323598943Sluigi */ 323698943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 3237117469Sluigi int l = sizeof(p.if_name)-1; 323898943Sluigi /* interface name */ 3239117469Sluigi strncpy(p.if_name, av[0], l); 3240117469Sluigi p.if_name[l] = '\0'; 3241117469Sluigi p.bandwidth = 0; 324298943Sluigi } else { 3243117469Sluigi p.if_name[0] = '\0'; 3244117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 324598943Sluigi if (*end == 'K' || *end == 'k') { 324698943Sluigi end++; 3247117469Sluigi p.bandwidth *= 1000; 324898943Sluigi } else if (*end == 'M') { 324998943Sluigi end++; 3250117469Sluigi p.bandwidth *= 1000000; 325198943Sluigi } 3252140271Sbrooks if (*end == 'B' || 3253140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 3254117469Sluigi p.bandwidth *= 8; 3255117469Sluigi if (p.bandwidth < 0) 325698943Sluigi errx(EX_DATAERR, "bandwidth too large"); 325798943Sluigi } 325898943Sluigi ac--; av++; 325998943Sluigi break; 326098943Sluigi 326198943Sluigi case TOK_DELAY: 326298943Sluigi if (do_pipe != 1) 326398943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 326498943Sluigi NEED1("delay needs argument 0..10000ms\n"); 3265117469Sluigi p.delay = strtoul(av[0], NULL, 0); 326698943Sluigi ac--; av++; 326798943Sluigi break; 326898943Sluigi 326998943Sluigi case TOK_WEIGHT: 327098943Sluigi if (do_pipe == 1) 327198943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 327298943Sluigi NEED1("weight needs argument 0..100\n"); 3273117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 327498943Sluigi ac--; av++; 327598943Sluigi break; 327698943Sluigi 327798943Sluigi case TOK_PIPE: 327898943Sluigi if (do_pipe == 1) 327998943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 328098943Sluigi NEED1("pipe needs pipe_number\n"); 3281117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 328298943Sluigi ac--; av++; 328398943Sluigi break; 328498943Sluigi 328598943Sluigi default: 3286124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 328798943Sluigi } 328898943Sluigi } 328998943Sluigi if (do_pipe == 1) { 3290117469Sluigi if (p.pipe_nr == 0) 329198943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 3292117469Sluigi if (p.delay > 10000) 329398943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 329498943Sluigi } else { /* do_pipe == 2, queue */ 3295117469Sluigi if (p.fs.parent_nr == 0) 329698943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 3297117469Sluigi if (p.fs.weight >100) 329898943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 329998943Sluigi } 3300117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 3301117469Sluigi if (p.fs.qsize > 1024*1024) 330298943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 330398943Sluigi } else { 3304117469Sluigi if (p.fs.qsize > 100) 330598943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 330698943Sluigi } 3307117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 330898943Sluigi size_t len; 330998943Sluigi int lookup_depth, avg_pkt_size; 331098943Sluigi double s, idle, weight, w_q; 3311117469Sluigi struct clockinfo ck; 331298943Sluigi int t; 331398943Sluigi 3314117469Sluigi if (p.fs.min_th >= p.fs.max_th) 331598943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 3316117469Sluigi p.fs.min_th, p.fs.max_th); 3317117469Sluigi if (p.fs.max_th == 0) 331898943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 331998943Sluigi 332098943Sluigi len = sizeof(int); 332198943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 332298943Sluigi &lookup_depth, &len, NULL, 0) == -1) 332398943Sluigi 332498943Sluigi errx(1, "sysctlbyname(\"%s\")", 332598943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 332698943Sluigi if (lookup_depth == 0) 332798943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 332898943Sluigi " must be greater than zero"); 332998943Sluigi 333098943Sluigi len = sizeof(int); 333198943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 333298943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 333398943Sluigi 333498943Sluigi errx(1, "sysctlbyname(\"%s\")", 333598943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 333698943Sluigi if (avg_pkt_size == 0) 333798943Sluigi errx(EX_DATAERR, 333898943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 333998943Sluigi " be greater than zero"); 334098943Sluigi 334198943Sluigi len = sizeof(struct clockinfo); 3342117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 334398943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 334498943Sluigi 334598943Sluigi /* 334698943Sluigi * Ticks needed for sending a medium-sized packet. 334798943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 334898943Sluigi * do not have bandwidth information, because that is stored 334998943Sluigi * in the parent pipe, and also we have multiple queues 335098943Sluigi * competing for it. So we set s=0, which is not very 335198943Sluigi * correct. But on the other hand, why do we want RED with 335298943Sluigi * WF2Q+ ? 335398943Sluigi */ 3354117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 335598943Sluigi s = 0; 335698943Sluigi else 3357117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 335898943Sluigi 335998943Sluigi /* 336098943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 336198943Sluigi * NOTA: (3/w_q) is approx the value x so that 336298943Sluigi * (1-w_q)^x < 10^-3. 336398943Sluigi */ 3364117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 336598943Sluigi idle = s * 3. / w_q; 3366117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 3367117469Sluigi if (!p.fs.lookup_step) 3368117469Sluigi p.fs.lookup_step = 1; 336998943Sluigi weight = 1 - w_q; 3370117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 337198943Sluigi weight *= weight; 3372117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 337398943Sluigi } 3374117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 337598943Sluigi if (i) 337698943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 337798943Sluigi} 337898943Sluigi 337998943Sluigistatic void 3380117577Sluigiget_mac_addr_mask(char *p, uint8_t *addr, uint8_t *mask) 338198943Sluigi{ 338298943Sluigi int i, l; 338398943Sluigi 338498943Sluigi for (i=0; i<6; i++) 338598943Sluigi addr[i] = mask[i] = 0; 3386140271Sbrooks if (strcmp(p, "any") == 0) 338798943Sluigi return; 338898943Sluigi 338998943Sluigi for (i=0; *p && i<6;i++, p++) { 339098943Sluigi addr[i] = strtol(p, &p, 16); 339198943Sluigi if (*p != ':') /* we start with the mask */ 339298943Sluigi break; 339398943Sluigi } 339498943Sluigi if (*p == '/') { /* mask len */ 339598943Sluigi l = strtol(p+1, &p, 0); 339698943Sluigi for (i=0; l>0; l -=8, i++) 339798943Sluigi mask[i] = (l >=8) ? 0xff : (~0) << (8-l); 339898943Sluigi } else if (*p == '&') { /* mask */ 339998943Sluigi for (i=0, p++; *p && i<6;i++, p++) { 340098943Sluigi mask[i] = strtol(p, &p, 16); 340198943Sluigi if (*p != ':') 340298943Sluigi break; 340398943Sluigi } 340498943Sluigi } else if (*p == '\0') { 340598943Sluigi for (i=0; i<6; i++) 340698943Sluigi mask[i] = 0xff; 340798943Sluigi } 340898943Sluigi for (i=0; i<6; i++) 340998943Sluigi addr[i] &= mask[i]; 341098943Sluigi} 341198943Sluigi 341298943Sluigi/* 341398943Sluigi * helper function, updates the pointer to cmd with the length 341498943Sluigi * of the current command, and also cleans up the first word of 341598943Sluigi * the new command in case it has been clobbered before. 341698943Sluigi */ 341798943Sluigistatic ipfw_insn * 341898943Sluiginext_cmd(ipfw_insn *cmd) 341998943Sluigi{ 342098943Sluigi cmd += F_LEN(cmd); 342198943Sluigi bzero(cmd, sizeof(*cmd)); 342298943Sluigi return cmd; 342398943Sluigi} 342498943Sluigi 342598943Sluigi/* 3426117469Sluigi * Takes arguments and copies them into a comment 3427117469Sluigi */ 3428117469Sluigistatic void 3429117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 3430117469Sluigi{ 3431117469Sluigi int i, l; 3432117469Sluigi char *p = (char *)(cmd + 1); 3433117577Sluigi 3434117469Sluigi cmd->opcode = O_NOP; 3435117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 3436117469Sluigi 3437117469Sluigi /* Compute length of comment string. */ 3438117469Sluigi for (i = 0, l = 0; i < ac; i++) 3439117469Sluigi l += strlen(av[i]) + 1; 3440117469Sluigi if (l == 0) 3441117469Sluigi return; 3442117469Sluigi if (l > 84) 3443117469Sluigi errx(EX_DATAERR, 3444117469Sluigi "comment too long (max 80 chars)"); 3445117469Sluigi l = 1 + (l+3)/4; 3446117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 3447117469Sluigi for (i = 0; i < ac; i++) { 3448117469Sluigi strcpy(p, av[i]); 3449117469Sluigi p += strlen(av[i]); 3450117469Sluigi *p++ = ' '; 3451117469Sluigi } 3452117469Sluigi *(--p) = '\0'; 3453117469Sluigi} 3454117577Sluigi 3455117469Sluigi/* 345698943Sluigi * A function to fill simple commands of size 1. 345798943Sluigi * Existing flags are preserved. 345898943Sluigi */ 345998943Sluigistatic void 3460117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 346198943Sluigi{ 346298943Sluigi cmd->opcode = opcode; 346398943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 346498943Sluigi cmd->arg1 = arg; 346598943Sluigi} 346698943Sluigi 346798943Sluigi/* 346898943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 346998943Sluigi * two microinstructions, and returns the pointer to the last one. 347098943Sluigi */ 347198943Sluigistatic ipfw_insn * 347298943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 347398943Sluigi{ 3474102087Sluigi ipfw_insn_mac *mac; 347598943Sluigi 3476102087Sluigi if (ac < 2) 3477102098Sluigi errx(EX_DATAERR, "MAC dst src"); 347898943Sluigi 347998943Sluigi cmd->opcode = O_MACADDR2; 348098943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 348198943Sluigi 348298943Sluigi mac = (ipfw_insn_mac *)cmd; 3483101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 348498943Sluigi get_mac_addr_mask(av[1], &(mac->addr[6]), &(mac->mask[6])); /* src */ 3485102087Sluigi return cmd; 3486102087Sluigi} 348798943Sluigi 3488102087Sluigistatic ipfw_insn * 3489102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 3490102087Sluigi{ 3491102087Sluigi if (ac < 1) 3492102087Sluigi errx(EX_DATAERR, "missing MAC type"); 3493102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 3494102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 349598943Sluigi cmd->opcode = O_MAC_TYPE; 3496102087Sluigi return cmd; 3497102087Sluigi } else 3498102087Sluigi return NULL; 3499102087Sluigi} 350098943Sluigi 3501102087Sluigistatic ipfw_insn * 3502145246Sbrooksadd_proto(ipfw_insn *cmd, char *av, u_char *proto) 3503102087Sluigi{ 3504102087Sluigi struct protoent *pe; 3505102087Sluigi 3506145246Sbrooks *proto = IPPROTO_IP; 3507145246Sbrooks 3508140271Sbrooks if (_substrcmp(av, "all") == 0) 3509102087Sluigi ; /* same as "ip" */ 3510145246Sbrooks else if ((*proto = atoi(av)) > 0) 3511102087Sluigi ; /* all done! */ 3512102087Sluigi else if ((pe = getprotobyname(av)) != NULL) 3513145246Sbrooks *proto = pe->p_proto; 3514145246Sbrooks else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6")) 3515145246Sbrooks *proto = IPPROTO_IPV6; 3516102087Sluigi else 3517102098Sluigi return NULL; 3518145246Sbrooks if (*proto != IPPROTO_IP && *proto != IPPROTO_IPV6) 3519145246Sbrooks fill_cmd(cmd, O_PROTO, 0, *proto); 3520145246Sbrooks 352198943Sluigi return cmd; 352298943Sluigi} 352398943Sluigi 3524102087Sluigistatic ipfw_insn * 3525102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 3526102087Sluigi{ 3527102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3528102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3529102087Sluigi cmd->opcode = O_IP_SRC_SET; 3530130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3531130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 3532102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3533102087Sluigi cmd->opcode = O_IP_SRC_ME; 3534102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3535102087Sluigi cmd->opcode = O_IP_SRC; 3536117328Sluigi else /* addr/mask */ 3537102087Sluigi cmd->opcode = O_IP_SRC_MASK; 3538102087Sluigi return cmd; 3539102087Sluigi} 3540102087Sluigi 3541102087Sluigistatic ipfw_insn * 3542102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 3543102087Sluigi{ 3544102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3545102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3546102087Sluigi ; 3547130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3548130281Sru ; 3549102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3550102087Sluigi cmd->opcode = O_IP_DST_ME; 3551102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3552102087Sluigi cmd->opcode = O_IP_DST; 3553117328Sluigi else /* addr/mask */ 3554102087Sluigi cmd->opcode = O_IP_DST_MASK; 3555102087Sluigi return cmd; 3556102087Sluigi} 3557102087Sluigi 3558102087Sluigistatic ipfw_insn * 3559102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 3560102087Sluigi{ 3561140271Sbrooks if (_substrcmp(av, "any") == 0) { 3562102087Sluigi return NULL; 3563102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 3564102087Sluigi /* XXX todo: check that we have a protocol with ports */ 3565102087Sluigi cmd->opcode = opcode; 3566102087Sluigi return cmd; 3567102087Sluigi } 3568102087Sluigi return NULL; 3569102087Sluigi} 3570102087Sluigi 3571145246Sbrooksstatic ipfw_insn * 3572145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 3573145246Sbrooks{ 3574145246Sbrooks struct in6_addr a; 3575145246Sbrooks 3576145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3577145246Sbrooks inet_pton(AF_INET6, av, &a)) 3578145246Sbrooks return add_srcip6(cmd, av); 3579145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3580145246Sbrooks if (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3581145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3582145246Sbrooks return add_srcip(cmd, av); 3583145246Sbrooks if (strcmp(av, "any") != 0) 3584145246Sbrooks return cmd; 3585145246Sbrooks 3586145246Sbrooks return NULL; 3587145246Sbrooks} 3588145246Sbrooks 3589145246Sbrooksstatic ipfw_insn * 3590145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 3591145246Sbrooks{ 3592145246Sbrooks struct in6_addr a; 3593145246Sbrooks 3594145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3595145246Sbrooks inet_pton(AF_INET6, av, &a)) 3596145246Sbrooks return add_dstip6(cmd, av); 3597145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3598145246Sbrooks if (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3599145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3600145246Sbrooks return add_dstip(cmd, av); 3601145246Sbrooks if (strcmp(av, "any") != 0) 3602145246Sbrooks return cmd; 3603145246Sbrooks 3604145246Sbrooks return NULL; 3605145246Sbrooks} 3606145246Sbrooks 360798943Sluigi/* 360898943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 360998943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 361098943Sluigi * into the actual rule. 361198943Sluigi * 3612136071Sgreen * The syntax for a rule starts with the action, followed by 3613136071Sgreen * optional action parameters, and the various match patterns. 3614108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 361598943Sluigi * (generated if the rule includes a keep-state option), then the 3616136071Sgreen * various match patterns, log/altq actions, and the actual action. 3617106505Smaxim * 361898943Sluigi */ 361998943Sluigistatic void 362098943Sluigiadd(int ac, char *av[]) 362198943Sluigi{ 362298943Sluigi /* 362398943Sluigi * rules are added into the 'rulebuf' and then copied in 362498943Sluigi * the correct order into the actual rule. 362598943Sluigi * Some things that need to go out of order (prob, action etc.) 362698943Sluigi * go into actbuf[]. 362798943Sluigi */ 3628117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 362998943Sluigi 3630117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 3631102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 363298943Sluigi 363398943Sluigi struct ip_fw *rule; 363498943Sluigi 363598943Sluigi /* 363698943Sluigi * various flags used to record that we entered some fields. 363798943Sluigi */ 3638101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 3639136071Sgreen ipfw_insn *have_log = NULL, *have_altq = NULL; 3640134475Smaxim size_t len; 364198943Sluigi 364298943Sluigi int i; 364398943Sluigi 364498943Sluigi int open_par = 0; /* open parenthesis ( */ 364598943Sluigi 364698943Sluigi /* proto is here because it is used to fetch ports */ 364798943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 364898943Sluigi 3649107289Sluigi double match_prob = 1; /* match probability, default is always match */ 3650107289Sluigi 365198943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 365298943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 365398943Sluigi bzero(rulebuf, sizeof(rulebuf)); 365498943Sluigi 365598943Sluigi rule = (struct ip_fw *)rulebuf; 365698943Sluigi cmd = (ipfw_insn *)cmdbuf; 365798943Sluigi action = (ipfw_insn *)actbuf; 365898943Sluigi 365998943Sluigi av++; ac--; 366098943Sluigi 366198943Sluigi /* [rule N] -- Rule number optional */ 366298943Sluigi if (ac && isdigit(**av)) { 366398943Sluigi rule->rulenum = atoi(*av); 366498943Sluigi av++; 366598943Sluigi ac--; 366698943Sluigi } 366798943Sluigi 3668117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 3669140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 3670101628Sluigi int set = strtoul(av[1], NULL, 10); 3671117655Sluigi if (set < 0 || set > RESVD_SET) 3672101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 3673101628Sluigi rule->set = set; 3674101628Sluigi av += 2; ac -= 2; 3675101628Sluigi } 3676101628Sluigi 367798943Sluigi /* [prob D] -- match probability, optional */ 3678140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 3679107289Sluigi match_prob = strtod(av[1], NULL); 368098943Sluigi 3681107289Sluigi if (match_prob <= 0 || match_prob > 1) 368298943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 368398943Sluigi av += 2; ac -= 2; 368498943Sluigi } 368598943Sluigi 368698943Sluigi /* action -- mandatory */ 368798943Sluigi NEED1("missing action"); 368898943Sluigi i = match_token(rule_actions, *av); 368998943Sluigi ac--; av++; 369098943Sluigi action->len = 1; /* default */ 369198943Sluigi switch(i) { 369298943Sluigi case TOK_CHECKSTATE: 3693101116Sluigi have_state = action; 369498943Sluigi action->opcode = O_CHECK_STATE; 369598943Sluigi break; 369698943Sluigi 369798943Sluigi case TOK_ACCEPT: 369898943Sluigi action->opcode = O_ACCEPT; 369998943Sluigi break; 370098943Sluigi 370198943Sluigi case TOK_DENY: 370298943Sluigi action->opcode = O_DENY; 370399475Sluigi action->arg1 = 0; 370498943Sluigi break; 370598943Sluigi 370699475Sluigi case TOK_REJECT: 370799475Sluigi action->opcode = O_REJECT; 370899475Sluigi action->arg1 = ICMP_UNREACH_HOST; 370999475Sluigi break; 371099475Sluigi 371199475Sluigi case TOK_RESET: 371299475Sluigi action->opcode = O_REJECT; 371399475Sluigi action->arg1 = ICMP_REJECT_RST; 371499475Sluigi break; 371599475Sluigi 371699475Sluigi case TOK_UNREACH: 371799475Sluigi action->opcode = O_REJECT; 371899475Sluigi NEED1("missing reject code"); 371999475Sluigi fill_reject_code(&action->arg1, *av); 372099475Sluigi ac--; av++; 372199475Sluigi break; 372299475Sluigi 372398943Sluigi case TOK_COUNT: 372498943Sluigi action->opcode = O_COUNT; 372598943Sluigi break; 372698943Sluigi 372798943Sluigi case TOK_QUEUE: 372898943Sluigi case TOK_PIPE: 372998943Sluigi action->len = F_INSN_SIZE(ipfw_insn_pipe); 373098943Sluigi case TOK_SKIPTO: 373198943Sluigi if (i == TOK_QUEUE) 373298943Sluigi action->opcode = O_QUEUE; 373398943Sluigi else if (i == TOK_PIPE) 373498943Sluigi action->opcode = O_PIPE; 373598943Sluigi else if (i == TOK_SKIPTO) 373698943Sluigi action->opcode = O_SKIPTO; 373798943Sluigi NEED1("missing skipto/pipe/queue number"); 373898943Sluigi action->arg1 = strtoul(*av, NULL, 10); 373998943Sluigi av++; ac--; 374098943Sluigi break; 374198943Sluigi 374298943Sluigi case TOK_DIVERT: 374398943Sluigi case TOK_TEE: 374498943Sluigi action->opcode = (i == TOK_DIVERT) ? O_DIVERT : O_TEE; 374598943Sluigi NEED1("missing divert/tee port"); 374698943Sluigi action->arg1 = strtoul(*av, NULL, 0); 374798943Sluigi if (action->arg1 == 0) { 374898943Sluigi struct servent *s; 374998943Sluigi setservent(1); 375098943Sluigi s = getservbyname(av[0], "divert"); 375198943Sluigi if (s != NULL) 375298943Sluigi action->arg1 = ntohs(s->s_port); 375398943Sluigi else 375498943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 375598943Sluigi } 375698943Sluigi ac--; av++; 375798943Sluigi break; 375898943Sluigi 3759141351Sglebius case TOK_NETGRAPH: 3760141351Sglebius case TOK_NGTEE: 3761141351Sglebius action->opcode = (i == TOK_NETGRAPH ) ? O_NETGRAPH : O_NGTEE; 3762141351Sglebius NEED1("missing netgraph cookie"); 3763141351Sglebius action->arg1 = strtoul(*av, NULL, 0); 3764141351Sglebius if (action->arg1 == 0) 3765141351Sglebius errx(EX_DATAERR, "illegal netgraph cookie"); 3766141351Sglebius ac--; av++; 3767141351Sglebius break; 3768141351Sglebius 376998943Sluigi case TOK_FORWARD: { 377098943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 377198943Sluigi char *s, *end; 377298943Sluigi 377398943Sluigi NEED1("missing forward address[:port]"); 377498943Sluigi 377598943Sluigi action->opcode = O_FORWARD_IP; 377698943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 377798943Sluigi 377898943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 377998943Sluigi p->sa.sin_family = AF_INET; 378098943Sluigi p->sa.sin_port = 0; 378198943Sluigi /* 378298943Sluigi * locate the address-port separator (':' or ',') 378398943Sluigi */ 378498943Sluigi s = strchr(*av, ':'); 378598943Sluigi if (s == NULL) 378698943Sluigi s = strchr(*av, ','); 378798943Sluigi if (s != NULL) { 378898943Sluigi *(s++) = '\0'; 378998943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 379098943Sluigi if (s == end) 379198943Sluigi errx(EX_DATAERR, 379298943Sluigi "illegal forwarding port ``%s''", s); 3793103241Sluigi p->sa.sin_port = (u_short)i; 379498943Sluigi } 379598943Sluigi lookup_host(*av, &(p->sa.sin_addr)); 379698943Sluigi } 379798943Sluigi ac--; av++; 379898943Sluigi break; 379998943Sluigi 3800117469Sluigi case TOK_COMMENT: 3801117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 3802117469Sluigi action->opcode = O_COUNT; 3803117469Sluigi ac++; av--; /* go back... */ 3804117469Sluigi break; 3805117469Sluigi 380698943Sluigi default: 3807102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 380898943Sluigi } 380998943Sluigi action = next_cmd(action); 381098943Sluigi 381198943Sluigi /* 3812136071Sgreen * [altq queuename] -- altq tag, optional 381398943Sluigi * [log [logamount N]] -- log, optional 381498943Sluigi * 3815136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 381698943Sluigi * skipped in the copy section to the end of the buffer. 381798943Sluigi */ 3818136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 3819136071Sgreen ac--; av++; 3820136071Sgreen switch (i) { 3821136071Sgreen case TOK_LOG: 3822136071Sgreen { 3823136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 3824136071Sgreen int l; 382598943Sluigi 3826136071Sgreen if (have_log) 3827136071Sgreen errx(EX_DATAERR, 3828136071Sgreen "log cannot be specified more than once"); 3829136071Sgreen have_log = (ipfw_insn *)c; 3830136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 3831136071Sgreen cmd->opcode = O_LOG; 3832140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 3833136071Sgreen ac--; av++; 3834136071Sgreen NEED1("logamount requires argument"); 3835136071Sgreen l = atoi(*av); 3836136071Sgreen if (l < 0) 3837136071Sgreen errx(EX_DATAERR, 3838136071Sgreen "logamount must be positive"); 3839136071Sgreen c->max_log = l; 3840136071Sgreen ac--; av++; 3841136071Sgreen } else { 3842136071Sgreen len = sizeof(c->max_log); 3843136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 3844136071Sgreen &c->max_log, &len, NULL, 0) == -1) 3845136071Sgreen errx(1, "sysctlbyname(\"%s\")", 3846136071Sgreen "net.inet.ip.fw.verbose_limit"); 3847136071Sgreen } 3848136071Sgreen } 3849136071Sgreen break; 3850136071Sgreen 3851136071Sgreen case TOK_ALTQ: 3852136071Sgreen { 3853136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 3854136071Sgreen 3855136071Sgreen NEED1("missing altq queue name"); 3856136071Sgreen if (have_altq) 3857136071Sgreen errx(EX_DATAERR, 3858136071Sgreen "altq cannot be specified more than once"); 3859136071Sgreen have_altq = (ipfw_insn *)a; 3860136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 3861136071Sgreen cmd->opcode = O_ALTQ; 3862136071Sgreen fill_altq_qid(&a->qid, *av); 386398943Sluigi ac--; av++; 3864136071Sgreen } 3865136071Sgreen break; 3866136071Sgreen 3867136071Sgreen default: 3868136071Sgreen abort(); 386998943Sluigi } 387098943Sluigi cmd = next_cmd(cmd); 387198943Sluigi } 387298943Sluigi 3873101116Sluigi if (have_state) /* must be a check-state, we are done */ 387498943Sluigi goto done; 387598943Sluigi 387698943Sluigi#define OR_START(target) \ 387798943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 387898943Sluigi if (open_par) \ 387998943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 3880101641Sluigi prev = NULL; \ 388198943Sluigi open_par = 1; \ 388298943Sluigi if ( (av[0])[1] == '\0') { \ 388398943Sluigi ac--; av++; \ 388498943Sluigi } else \ 388598943Sluigi (*av)++; \ 388698943Sluigi } \ 388798943Sluigi target: \ 388898943Sluigi 388998943Sluigi 389098943Sluigi#define CLOSE_PAR \ 389198943Sluigi if (open_par) { \ 389298943Sluigi if (ac && ( \ 3893140271Sbrooks strcmp(*av, ")") == 0 || \ 3894140271Sbrooks strcmp(*av, "}") == 0)) { \ 3895101641Sluigi prev = NULL; \ 389698943Sluigi open_par = 0; \ 389798943Sluigi ac--; av++; \ 389898943Sluigi } else \ 389998943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 390098943Sluigi } 3901106505Smaxim 390298943Sluigi#define NOT_BLOCK \ 3903140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 390498943Sluigi if (cmd->len & F_NOT) \ 390598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 390698943Sluigi cmd->len |= F_NOT; \ 390798943Sluigi ac--; av++; \ 390898943Sluigi } 390998943Sluigi 391098943Sluigi#define OR_BLOCK(target) \ 3911140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 391298943Sluigi if (prev == NULL || open_par == 0) \ 391398943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 391498943Sluigi prev->len |= F_OR; \ 391598943Sluigi ac--; av++; \ 391698943Sluigi goto target; \ 391798943Sluigi } \ 391898943Sluigi CLOSE_PAR; 391998943Sluigi 3920102087Sluigi first_cmd = cmd; 3921102098Sluigi 3922102098Sluigi#if 0 392398943Sluigi /* 3924102087Sluigi * MAC addresses, optional. 3925102087Sluigi * If we have this, we skip the part "proto from src to dst" 3926102087Sluigi * and jump straight to the option parsing. 3927102087Sluigi */ 3928102087Sluigi NOT_BLOCK; 3929102087Sluigi NEED1("missing protocol"); 3930140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 3931140271Sbrooks _substrcmp(*av, "mac") == 0) { 3932102087Sluigi ac--; av++; /* the "MAC" keyword */ 3933102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 3934102087Sluigi cmd = next_cmd(cmd); 3935102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 3936102087Sluigi NOT_BLOCK; 3937102087Sluigi NEED1("missing mac type"); 3938102087Sluigi if (add_mactype(cmd, ac, av[0])) 3939102087Sluigi cmd = next_cmd(cmd); 3940102087Sluigi ac--; av++; /* any or mac-type */ 3941102087Sluigi goto read_options; 3942102087Sluigi } 3943102098Sluigi#endif 3944102087Sluigi 3945102087Sluigi /* 394698943Sluigi * protocol, mandatory 394798943Sluigi */ 394898943Sluigi OR_START(get_proto); 394998943Sluigi NOT_BLOCK; 395098943Sluigi NEED1("missing protocol"); 3951145246Sbrooks if (add_proto(cmd, *av, &proto)) { 3952102087Sluigi av++; ac--; 3953102087Sluigi if (F_LEN(cmd) == 0) /* plain IP */ 3954102087Sluigi proto = 0; 3955102087Sluigi else { 3956102087Sluigi proto = cmd->arg1; 3957102087Sluigi prev = cmd; 3958102087Sluigi cmd = next_cmd(cmd); 3959102087Sluigi } 3960102098Sluigi } else if (first_cmd != cmd) { 3961116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 3962102098Sluigi } else 3963102098Sluigi goto read_options; 396498943Sluigi OR_BLOCK(get_proto); 396598943Sluigi 396698943Sluigi /* 3967102087Sluigi * "from", mandatory 396898943Sluigi */ 3969140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 397098943Sluigi errx(EX_USAGE, "missing ``from''"); 397198943Sluigi ac--; av++; 397298943Sluigi 397398943Sluigi /* 397498943Sluigi * source IP, mandatory 397598943Sluigi */ 397698943Sluigi OR_START(source_ip); 397798943Sluigi NOT_BLOCK; /* optional "not" */ 397898943Sluigi NEED1("missing source address"); 3979145246Sbrooks if (add_src(cmd, *av, proto)) { 3980102087Sluigi ac--; av++; 3981102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 3982102087Sluigi prev = cmd; 3983102087Sluigi cmd = next_cmd(cmd); 3984102087Sluigi } 3985145246Sbrooks } else 3986145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 398798943Sluigi OR_BLOCK(source_ip); 398898943Sluigi 398998943Sluigi /* 399098943Sluigi * source ports, optional 399198943Sluigi */ 399298943Sluigi NOT_BLOCK; /* optional "not" */ 3993101641Sluigi if (ac) { 3994140271Sbrooks if (_substrcmp(*av, "any") == 0 || 3995102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 3996102087Sluigi ac--; av++; 3997102087Sluigi if (F_LEN(cmd) != 0) 3998102087Sluigi cmd = next_cmd(cmd); 3999101641Sluigi } 400098943Sluigi } 400198943Sluigi 400298943Sluigi /* 4003102087Sluigi * "to", mandatory 400498943Sluigi */ 4005140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 400698943Sluigi errx(EX_USAGE, "missing ``to''"); 400798943Sluigi av++; ac--; 400898943Sluigi 400998943Sluigi /* 401098943Sluigi * destination, mandatory 401198943Sluigi */ 401298943Sluigi OR_START(dest_ip); 401398943Sluigi NOT_BLOCK; /* optional "not" */ 401498943Sluigi NEED1("missing dst address"); 4015145246Sbrooks if (add_dst(cmd, *av, proto)) { 4016102087Sluigi ac--; av++; 4017102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4018102087Sluigi prev = cmd; 4019102087Sluigi cmd = next_cmd(cmd); 4020102087Sluigi } 4021145246Sbrooks } else 4022145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 402398943Sluigi OR_BLOCK(dest_ip); 402498943Sluigi 402598943Sluigi /* 402698943Sluigi * dest. ports, optional 402798943Sluigi */ 402898943Sluigi NOT_BLOCK; /* optional "not" */ 4029101641Sluigi if (ac) { 4030140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4031102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4032102087Sluigi ac--; av++; 4033102087Sluigi if (F_LEN(cmd) != 0) 4034102087Sluigi cmd = next_cmd(cmd); 4035101641Sluigi } 403698943Sluigi } 403798943Sluigi 403898943Sluigiread_options: 4039102087Sluigi if (ac && first_cmd == cmd) { 4040102087Sluigi /* 4041102087Sluigi * nothing specified so far, store in the rule to ease 4042102087Sluigi * printout later. 4043102087Sluigi */ 4044102087Sluigi rule->_pad = 1; 4045102087Sluigi } 404698943Sluigi prev = NULL; 404798943Sluigi while (ac) { 4048101641Sluigi char *s; 4049101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 405098943Sluigi 4051101641Sluigi s = *av; 4052101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 4053101641Sluigi 405498943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 405598943Sluigi if (cmd->len & F_NOT) 405698943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 405798943Sluigi cmd->len = F_NOT; 405898943Sluigi s++; 405998943Sluigi } 406098943Sluigi i = match_token(rule_options, s); 406198943Sluigi ac--; av++; 406298943Sluigi switch(i) { 406398943Sluigi case TOK_NOT: 406498943Sluigi if (cmd->len & F_NOT) 406598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 406698943Sluigi cmd->len = F_NOT; 406798943Sluigi break; 406898943Sluigi 406998943Sluigi case TOK_OR: 4070101641Sluigi if (open_par == 0 || prev == NULL) 407198943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 407298943Sluigi prev->len |= F_OR; 407398943Sluigi break; 4074101641Sluigi 4075101641Sluigi case TOK_STARTBRACE: 4076101641Sluigi if (open_par) 4077101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 4078101641Sluigi open_par = 1; 4079101641Sluigi break; 4080101641Sluigi 4081101641Sluigi case TOK_ENDBRACE: 4082101641Sluigi if (!open_par) 4083101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 4084101641Sluigi open_par = 0; 4085102087Sluigi prev = NULL; 4086101641Sluigi break; 4087101641Sluigi 408898943Sluigi case TOK_IN: 408998943Sluigi fill_cmd(cmd, O_IN, 0, 0); 409098943Sluigi break; 409198943Sluigi 409298943Sluigi case TOK_OUT: 409398943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 409498943Sluigi fill_cmd(cmd, O_IN, 0, 0); 409598943Sluigi break; 409698943Sluigi 4097136073Sgreen case TOK_DIVERTED: 4098136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 4099136073Sgreen break; 4100136073Sgreen 4101136073Sgreen case TOK_DIVERTEDLOOPBACK: 4102136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 4103136073Sgreen break; 4104136073Sgreen 4105136073Sgreen case TOK_DIVERTEDOUTPUT: 4106136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 4107136073Sgreen break; 4108136073Sgreen 410998943Sluigi case TOK_FRAG: 411098943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 411198943Sluigi break; 411298943Sluigi 411398943Sluigi case TOK_LAYER2: 411498943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 411598943Sluigi break; 411698943Sluigi 411798943Sluigi case TOK_XMIT: 411898943Sluigi case TOK_RECV: 411998943Sluigi case TOK_VIA: 412098943Sluigi NEED1("recv, xmit, via require interface name" 412198943Sluigi " or address"); 412298943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 412398943Sluigi ac--; av++; 412498943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 412598943Sluigi break; 412698943Sluigi if (i == TOK_XMIT) 412798943Sluigi cmd->opcode = O_XMIT; 412898943Sluigi else if (i == TOK_RECV) 412998943Sluigi cmd->opcode = O_RECV; 413098943Sluigi else if (i == TOK_VIA) 413198943Sluigi cmd->opcode = O_VIA; 413298943Sluigi break; 413398943Sluigi 413499475Sluigi case TOK_ICMPTYPES: 413599475Sluigi NEED1("icmptypes requires list of types"); 413699475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 413799475Sluigi av++; ac--; 413899475Sluigi break; 4139145246Sbrooks 4140145246Sbrooks case TOK_ICMP6TYPES: 4141145246Sbrooks NEED1("icmptypes requires list of types"); 4142145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 4143145246Sbrooks av++; ac--; 4144145246Sbrooks break; 414599475Sluigi 414698943Sluigi case TOK_IPTTL: 414798943Sluigi NEED1("ipttl requires TTL"); 4148116690Sluigi if (strpbrk(*av, "-,")) { 4149116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 4150116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 4151116690Sluigi } else 4152116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 415398943Sluigi ac--; av++; 415498943Sluigi break; 415598943Sluigi 415698943Sluigi case TOK_IPID: 4157116690Sluigi NEED1("ipid requires id"); 4158116690Sluigi if (strpbrk(*av, "-,")) { 4159116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 4160116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 4161116690Sluigi } else 4162116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 416398943Sluigi ac--; av++; 416498943Sluigi break; 416598943Sluigi 416698943Sluigi case TOK_IPLEN: 416798943Sluigi NEED1("iplen requires length"); 4168116690Sluigi if (strpbrk(*av, "-,")) { 4169116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 4170116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 4171116690Sluigi } else 4172116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 417398943Sluigi ac--; av++; 417498943Sluigi break; 417598943Sluigi 417698943Sluigi case TOK_IPVER: 417798943Sluigi NEED1("ipver requires version"); 417898943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 417998943Sluigi ac--; av++; 418098943Sluigi break; 418198943Sluigi 418299475Sluigi case TOK_IPPRECEDENCE: 418399475Sluigi NEED1("ipprecedence requires value"); 418499475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 418599475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 418699475Sluigi ac--; av++; 418799475Sluigi break; 418899475Sluigi 418998943Sluigi case TOK_IPOPTS: 419098943Sluigi NEED1("missing argument for ipoptions"); 4191101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 419298943Sluigi ac--; av++; 419398943Sluigi break; 419498943Sluigi 419599475Sluigi case TOK_IPTOS: 419699475Sluigi NEED1("missing argument for iptos"); 4197101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 419899475Sluigi ac--; av++; 419999475Sluigi break; 420099475Sluigi 420198943Sluigi case TOK_UID: 420298943Sluigi NEED1("uid requires argument"); 420398943Sluigi { 420498943Sluigi char *end; 420598943Sluigi uid_t uid; 420698943Sluigi struct passwd *pwd; 420798943Sluigi 420898943Sluigi cmd->opcode = O_UID; 420998943Sluigi uid = strtoul(*av, &end, 0); 421098943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 421198943Sluigi if (pwd == NULL) 421298943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 4213106504Smaxim cmd32->d[0] = pwd->pw_uid; 4214135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 421598943Sluigi ac--; av++; 421698943Sluigi } 421798943Sluigi break; 421898943Sluigi 421998943Sluigi case TOK_GID: 422098943Sluigi NEED1("gid requires argument"); 422198943Sluigi { 422298943Sluigi char *end; 422398943Sluigi gid_t gid; 422498943Sluigi struct group *grp; 422598943Sluigi 422698943Sluigi cmd->opcode = O_GID; 422798943Sluigi gid = strtoul(*av, &end, 0); 422898943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 422998943Sluigi if (grp == NULL) 423098943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 4231106504Smaxim cmd32->d[0] = grp->gr_gid; 4232135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 423398943Sluigi ac--; av++; 423498943Sluigi } 423598943Sluigi break; 423698943Sluigi 4237133600Scsjp case TOK_JAIL: 4238133600Scsjp NEED1("jail requires argument"); 4239133600Scsjp { 4240133600Scsjp char *end; 4241133600Scsjp int jid; 4242133600Scsjp 4243133600Scsjp cmd->opcode = O_JAIL; 4244133600Scsjp jid = (int)strtol(*av, &end, 0); 4245133600Scsjp if (jid < 0 || *end != '\0') 4246133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 4247135554Scsjp cmd32->d[0] = (uint32_t)jid; 4248135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 4249133600Scsjp ac--; av++; 4250133600Scsjp } 4251133600Scsjp break; 4252133600Scsjp 425398943Sluigi case TOK_ESTAB: 425498943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 425598943Sluigi break; 425698943Sluigi 425798943Sluigi case TOK_SETUP: 425898943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 425998943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 426098943Sluigi break; 426198943Sluigi 4262136075Sgreen case TOK_TCPDATALEN: 4263136075Sgreen NEED1("tcpdatalen requires length"); 4264136075Sgreen if (strpbrk(*av, "-,")) { 4265136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 4266136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 4267136075Sgreen } else 4268136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 4269136075Sgreen strtoul(*av, NULL, 0)); 4270136075Sgreen ac--; av++; 4271136075Sgreen break; 4272136075Sgreen 427398943Sluigi case TOK_TCPOPTS: 427498943Sluigi NEED1("missing argument for tcpoptions"); 427598943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 427698943Sluigi ac--; av++; 427798943Sluigi break; 427898943Sluigi 427998943Sluigi case TOK_TCPSEQ: 428098943Sluigi case TOK_TCPACK: 428198943Sluigi NEED1("tcpseq/tcpack requires argument"); 428298943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 428398943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 428498943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 428598943Sluigi ac--; av++; 428698943Sluigi break; 428798943Sluigi 428898943Sluigi case TOK_TCPWIN: 428998943Sluigi NEED1("tcpwin requires length"); 429098943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 429198943Sluigi htons(strtoul(*av, NULL, 0))); 429298943Sluigi ac--; av++; 429398943Sluigi break; 429498943Sluigi 429598943Sluigi case TOK_TCPFLAGS: 429698943Sluigi NEED1("missing argument for tcpflags"); 429798943Sluigi cmd->opcode = O_TCPFLAGS; 429898943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 429998943Sluigi ac--; av++; 430098943Sluigi break; 430198943Sluigi 430298943Sluigi case TOK_KEEPSTATE: 4303101641Sluigi if (open_par) 4304101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 4305101641Sluigi "of an or block"); 430699909Sluigi if (have_state) 4307101116Sluigi errx(EX_USAGE, "only one of keep-state " 430899909Sluigi "and limit is allowed"); 4309101116Sluigi have_state = cmd; 431098943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 431198943Sluigi break; 431298943Sluigi 431398943Sluigi case TOK_LIMIT: 4314101641Sluigi if (open_par) 4315101641Sluigi errx(EX_USAGE, "limit cannot be part " 4316101641Sluigi "of an or block"); 431799909Sluigi if (have_state) 4318101116Sluigi errx(EX_USAGE, "only one of keep-state " 431999909Sluigi "and limit is allowed"); 4320101641Sluigi NEED1("limit needs mask and # of connections"); 4321101116Sluigi have_state = cmd; 432298943Sluigi { 432398943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 432498943Sluigi 432598943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 432698943Sluigi cmd->opcode = O_LIMIT; 432798943Sluigi c->limit_mask = 0; 432898943Sluigi c->conn_limit = 0; 432998943Sluigi for (; ac >1 ;) { 433098943Sluigi int val; 433198943Sluigi 433298943Sluigi val = match_token(limit_masks, *av); 433398943Sluigi if (val <= 0) 433498943Sluigi break; 433598943Sluigi c->limit_mask |= val; 433698943Sluigi ac--; av++; 433798943Sluigi } 433898943Sluigi c->conn_limit = atoi(*av); 433998943Sluigi if (c->conn_limit == 0) 434098943Sluigi errx(EX_USAGE, "limit: limit must be >0"); 434198943Sluigi if (c->limit_mask == 0) 434298943Sluigi errx(EX_USAGE, "missing limit mask"); 434398943Sluigi ac--; av++; 434498943Sluigi } 434598943Sluigi break; 434698943Sluigi 4347102087Sluigi case TOK_PROTO: 4348102087Sluigi NEED1("missing protocol"); 4349145246Sbrooks if (add_proto(cmd, *av, &proto)) { 4350145246Sbrooks if (proto == IPPROTO_IPV6) 4351145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 4352102087Sluigi ac--; av++; 4353102098Sluigi } else 4354116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 4355116438Smaxim *av); 4356102087Sluigi break; 4357106505Smaxim 4358102087Sluigi case TOK_SRCIP: 4359102087Sluigi NEED1("missing source IP"); 4360102087Sluigi if (add_srcip(cmd, *av)) { 4361102087Sluigi ac--; av++; 4362102087Sluigi } 4363102087Sluigi break; 4364102087Sluigi 4365102087Sluigi case TOK_DSTIP: 4366102087Sluigi NEED1("missing destination IP"); 4367102087Sluigi if (add_dstip(cmd, *av)) { 4368102087Sluigi ac--; av++; 4369102087Sluigi } 4370102087Sluigi break; 4371102087Sluigi 4372145246Sbrooks case TOK_SRCIP6: 4373145246Sbrooks NEED1("missing source IP6"); 4374145246Sbrooks if (add_srcip6(cmd, *av)) { 4375145246Sbrooks ac--; av++; 4376145246Sbrooks } 4377145246Sbrooks break; 4378145246Sbrooks 4379145246Sbrooks case TOK_DSTIP6: 4380145246Sbrooks NEED1("missing destination IP6"); 4381145246Sbrooks if (add_dstip6(cmd, *av)) { 4382145246Sbrooks ac--; av++; 4383145246Sbrooks } 4384145246Sbrooks break; 4385145246Sbrooks 4386102087Sluigi case TOK_SRCPORT: 4387102087Sluigi NEED1("missing source port"); 4388140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4389102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4390102087Sluigi ac--; av++; 4391102087Sluigi } else 4392102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 4393102087Sluigi break; 4394102087Sluigi 4395102087Sluigi case TOK_DSTPORT: 4396102087Sluigi NEED1("missing destination port"); 4397140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4398102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4399102087Sluigi ac--; av++; 4400102087Sluigi } else 4401102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 4402102087Sluigi *av); 4403102087Sluigi break; 4404102087Sluigi 4405102087Sluigi case TOK_MAC: 4406102087Sluigi if (add_mac(cmd, ac, av)) { 4407102087Sluigi ac -= 2; av += 2; 4408102087Sluigi } 4409102087Sluigi break; 4410102087Sluigi 4411102087Sluigi case TOK_MACTYPE: 4412102087Sluigi NEED1("missing mac type"); 4413102087Sluigi if (!add_mactype(cmd, ac, *av)) 4414116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 4415102087Sluigi ac--; av++; 4416102087Sluigi break; 4417102087Sluigi 4418112250Scjc case TOK_VERREVPATH: 4419112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 4420112250Scjc break; 4421116919Sluigi 4422128575Sandre case TOK_VERSRCREACH: 4423128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 4424128575Sandre break; 4425128575Sandre 4426133387Sandre case TOK_ANTISPOOF: 4427133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 4428133387Sandre break; 4429133387Sandre 4430117241Sluigi case TOK_IPSEC: 4431117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 4432117241Sluigi break; 4433117241Sluigi 4434145246Sbrooks case TOK_IPV6: 4435145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 4436145246Sbrooks ac--; av++; 4437145246Sbrooks break; 4438145246Sbrooks 4439145246Sbrooks case TOK_EXT6HDR: 4440145246Sbrooks fill_ext6hdr( cmd, *av ); 4441145246Sbrooks ac--; av++; 4442145246Sbrooks break; 4443145246Sbrooks 4444145246Sbrooks case TOK_FLOWID: 4445145246Sbrooks if (proto != IPPROTO_IPV6 ) 4446145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 4447145246Sbrooks "only for ipv6 protocol\n"); 4448145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 4449145246Sbrooks ac--; av++; 4450145246Sbrooks break; 4451145246Sbrooks 4452117469Sluigi case TOK_COMMENT: 4453117469Sluigi fill_comment(cmd, ac, av); 4454117469Sluigi av += ac; 4455117469Sluigi ac = 0; 4456117469Sluigi break; 4457117469Sluigi 445898943Sluigi default: 445998943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 446098943Sluigi } 446198943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 446298943Sluigi prev = cmd; 446398943Sluigi cmd = next_cmd(cmd); 446498943Sluigi } 446598943Sluigi } 446698943Sluigi 446798943Sluigidone: 446898943Sluigi /* 446998943Sluigi * Now copy stuff into the rule. 447098943Sluigi * If we have a keep-state option, the first instruction 447198943Sluigi * must be a PROBE_STATE (which is generated here). 447298943Sluigi * If we have a LOG option, it was stored as the first command, 447398943Sluigi * and now must be moved to the top of the action part. 447498943Sluigi */ 447598943Sluigi dst = (ipfw_insn *)rule->cmd; 447698943Sluigi 447798943Sluigi /* 4478107289Sluigi * First thing to write into the command stream is the match probability. 4479107289Sluigi */ 4480107289Sluigi if (match_prob != 1) { /* 1 means always match */ 4481107289Sluigi dst->opcode = O_PROB; 4482107289Sluigi dst->len = 2; 4483107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 4484107289Sluigi dst += dst->len; 4485107289Sluigi } 4486107289Sluigi 4487107289Sluigi /* 448898943Sluigi * generate O_PROBE_STATE if necessary 448998943Sluigi */ 4490101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 449198943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 449298943Sluigi dst = next_cmd(dst); 449398943Sluigi } 449498943Sluigi /* 4495136071Sgreen * copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ 449698943Sluigi */ 449798943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 449898943Sluigi i = F_LEN(src); 449998943Sluigi 4500101116Sluigi switch (src->opcode) { 4501101116Sluigi case O_LOG: 4502101116Sluigi case O_KEEP_STATE: 4503101116Sluigi case O_LIMIT: 4504136071Sgreen case O_ALTQ: 4505101116Sluigi break; 4506101116Sluigi default: 4507117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 450898943Sluigi dst += i; 450998943Sluigi } 451098943Sluigi } 451198943Sluigi 451298943Sluigi /* 4513101116Sluigi * put back the have_state command as last opcode 4514101116Sluigi */ 4515101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 4516101116Sluigi i = F_LEN(have_state); 4517117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 4518101116Sluigi dst += i; 4519101116Sluigi } 4520101116Sluigi /* 452198943Sluigi * start action section 452298943Sluigi */ 452398943Sluigi rule->act_ofs = dst - rule->cmd; 452498943Sluigi 452598943Sluigi /* 4526136071Sgreen * put back O_LOG, O_ALTQ if necessary 452798943Sluigi */ 4528136071Sgreen if (have_log) { 4529136071Sgreen i = F_LEN(have_log); 4530136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 453198943Sluigi dst += i; 453298943Sluigi } 4533136071Sgreen if (have_altq) { 4534136071Sgreen i = F_LEN(have_altq); 4535136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 4536136071Sgreen dst += i; 4537136071Sgreen } 453898943Sluigi /* 453998943Sluigi * copy all other actions 454098943Sluigi */ 454198943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 454298943Sluigi i = F_LEN(src); 4543117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 454498943Sluigi dst += i; 454598943Sluigi } 454698943Sluigi 4547117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 4548117469Sluigi i = (char *)dst - (char *)rule; 4549119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 455098943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 455198943Sluigi if (!do_quiet) 4552117469Sluigi show_ipfw(rule, 0, 0); 455398943Sluigi} 455498943Sluigi 455598943Sluigistatic void 4556117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 455798943Sluigi{ 455898943Sluigi int rulenum; 455998943Sluigi int failed = EX_OK; 4560117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 456198943Sluigi 456298943Sluigi av++; ac--; 456398943Sluigi 456498943Sluigi if (!ac) { 456598943Sluigi /* clear all entries */ 4566117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 4567117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 456898943Sluigi if (!do_quiet) 4569117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 4570117328Sluigi "Accounting cleared":"Logging counts reset"); 457198943Sluigi 457298943Sluigi return; 457398943Sluigi } 457498943Sluigi 457598943Sluigi while (ac) { 457698943Sluigi /* Rule number */ 457798943Sluigi if (isdigit(**av)) { 457898943Sluigi rulenum = atoi(*av); 457998943Sluigi av++; 458098943Sluigi ac--; 4581117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 4582117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 4583117328Sluigi rulenum, name); 458498943Sluigi failed = EX_UNAVAILABLE; 458598943Sluigi } else if (!do_quiet) 4586117328Sluigi printf("Entry %d %s.\n", rulenum, 4587117328Sluigi optname == IP_FW_ZERO ? 4588117328Sluigi "cleared" : "logging count reset"); 458998943Sluigi } else { 459098943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 459198943Sluigi } 459298943Sluigi } 459398943Sluigi if (failed != EX_OK) 459498943Sluigi exit(failed); 459598943Sluigi} 459698943Sluigi 459798943Sluigistatic void 4598117544Sluigiflush(int force) 459998943Sluigi{ 460098943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 460198943Sluigi 4602117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 460398943Sluigi int c; 460498943Sluigi 460598943Sluigi printf("Are you sure? [yn] "); 460698943Sluigi fflush(stdout); 460798943Sluigi do { 460898943Sluigi c = toupper(getc(stdin)); 460998943Sluigi while (c != '\n' && getc(stdin) != '\n') 461098943Sluigi if (feof(stdin)) 461198943Sluigi return; /* and do not flush */ 461298943Sluigi } while (c != 'Y' && c != 'N'); 461398943Sluigi printf("\n"); 461498943Sluigi if (c == 'N') /* user said no */ 461598943Sluigi return; 461698943Sluigi } 4617117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 461898943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 461998943Sluigi do_pipe ? "DUMMYNET" : "FW"); 462098943Sluigi if (!do_quiet) 462198943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 462298943Sluigi} 462398943Sluigi 4624117469Sluigi/* 4625117544Sluigi * Free a the (locally allocated) copy of command line arguments. 4626117469Sluigi */ 4627117544Sluigistatic void 4628117544Sluigifree_args(int ac, char **av) 4629117544Sluigi{ 4630117544Sluigi int i; 4631117544Sluigi 4632117544Sluigi for (i=0; i < ac; i++) 4633117544Sluigi free(av[i]); 4634117544Sluigi free(av); 4635117544Sluigi} 4636117544Sluigi 4637117544Sluigi/* 4638130281Sru * This one handles all table-related commands 4639130281Sru * ipfw table N add addr[/masklen] [value] 4640130281Sru * ipfw table N delete addr[/masklen] 4641130281Sru * ipfw table N flush 4642130281Sru * ipfw table N list 4643130281Sru */ 4644130281Srustatic void 4645130281Srutable_handler(int ac, char *av[]) 4646130281Sru{ 4647130281Sru ipfw_table_entry ent; 4648130281Sru ipfw_table *tbl; 4649130281Sru int do_add; 4650130281Sru char *p; 4651130281Sru socklen_t l; 4652130281Sru uint32_t a; 4653130281Sru 4654130281Sru ac--; av++; 4655130281Sru if (ac && isdigit(**av)) { 4656130281Sru ent.tbl = atoi(*av); 4657130281Sru ac--; av++; 4658130281Sru } else 4659130281Sru errx(EX_USAGE, "table number required"); 4660130281Sru NEED1("table needs command"); 4661140271Sbrooks if (_substrcmp(*av, "add") == 0 || 4662140271Sbrooks _substrcmp(*av, "delete") == 0) { 4663130281Sru do_add = **av == 'a'; 4664130281Sru ac--; av++; 4665130281Sru if (!ac) 4666130281Sru errx(EX_USAGE, "IP address required"); 4667130281Sru p = strchr(*av, '/'); 4668130281Sru if (p) { 4669130281Sru *p++ = '\0'; 4670130281Sru ent.masklen = atoi(p); 4671130281Sru if (ent.masklen > 32) 4672130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 4673130281Sru } else 4674130281Sru ent.masklen = 32; 4675130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 4676130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 4677130281Sru ac--; av++; 4678130281Sru if (do_add && ac) 4679130281Sru ent.value = strtoul(*av, NULL, 0); 4680130281Sru else 4681130281Sru ent.value = 0; 4682130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 4683130281Sru &ent, sizeof(ent)) < 0) 4684130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 4685130281Sru do_add ? "ADD" : "DEL"); 4686140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 4687130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 4688130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 4689140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 4690130281Sru a = ent.tbl; 4691130281Sru l = sizeof(a); 4692130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 4693130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 4694130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 4695130281Sru tbl = malloc(l); 4696130281Sru if (tbl == NULL) 4697130281Sru err(EX_OSERR, "malloc"); 4698130281Sru tbl->tbl = ent.tbl; 4699130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 4700130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 4701130281Sru for (a = 0; a < tbl->cnt; a++) { 4702130281Sru printf("%s/%u %u\n", 4703130281Sru inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 4704130281Sru tbl->ent[a].masklen, tbl->ent[a].value); 4705130281Sru } 4706130281Sru } else 4707130281Sru errx(EX_USAGE, "invalid table command %s", *av); 4708130281Sru} 4709130281Sru 4710130281Sru/* 4711117544Sluigi * Called with the arguments (excluding program name). 4712117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 4713117544Sluigi */ 471498943Sluigistatic int 4715117328Sluigiipfw_main(int oldac, char **oldav) 471698943Sluigi{ 4717117469Sluigi int ch, ac, save_ac; 4718117469Sluigi char **av, **save_av; 4719117469Sluigi int do_acct = 0; /* Show packet/byte count */ 4720117469Sluigi 4721117469Sluigi#define WHITESP " \t\f\v\n\r" 4722117544Sluigi if (oldac == 0) 4723117544Sluigi return 1; 4724117544Sluigi else if (oldac == 1) { 4725117328Sluigi /* 4726117328Sluigi * If we are called with a single string, try to split it into 4727117328Sluigi * arguments for subsequent parsing. 4728117328Sluigi * But first, remove spaces after a ',', by copying the string 4729117328Sluigi * in-place. 4730117328Sluigi */ 4731117469Sluigi char *arg = oldav[0]; /* The string... */ 4732117328Sluigi int l = strlen(arg); 4733117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 4734117328Sluigi int i, j; 4735117469Sluigi for (i = j = 0; i < l; i++) { 4736117469Sluigi if (arg[i] == '#') /* comment marker */ 4737117469Sluigi break; 4738117328Sluigi if (copy) { 4739117328Sluigi arg[j++] = arg[i]; 4740117469Sluigi copy = !index("," WHITESP, arg[i]); 4741117328Sluigi } else { 4742117469Sluigi copy = !index(WHITESP, arg[i]); 4743117328Sluigi if (copy) 4744117328Sluigi arg[j++] = arg[i]; 4745117328Sluigi } 4746117469Sluigi } 4747117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 4748117328Sluigi j--; 4749117328Sluigi l = j; /* the new argument length */ 4750117328Sluigi arg[j++] = '\0'; 4751117469Sluigi if (l == 0) /* empty string! */ 4752117544Sluigi return 1; 4753117328Sluigi 4754117328Sluigi /* 4755117328Sluigi * First, count number of arguments. Because of the previous 4756117469Sluigi * processing, this is just the number of blanks plus 1. 4757117328Sluigi */ 4758117469Sluigi for (i = 0, ac = 1; i < l; i++) 4759117469Sluigi if (index(WHITESP, arg[i]) != NULL) 4760117328Sluigi ac++; 4761117328Sluigi 4762117328Sluigi av = calloc(ac, sizeof(char *)); 4763117328Sluigi 4764117328Sluigi /* 4765117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 4766117328Sluigi * j is the initial character, i is the one past the end. 4767117328Sluigi */ 4768117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 4769117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 4770117328Sluigi if (i == l-1) 4771117328Sluigi i++; 4772117328Sluigi av[ac] = calloc(i-j+1, 1); 4773117328Sluigi bcopy(arg+j, av[ac], i-j); 4774117328Sluigi ac++; 4775117328Sluigi j = i + 1; 4776117328Sluigi } 4777117328Sluigi } else { 4778117328Sluigi /* 4779117328Sluigi * If an argument ends with ',' join with the next one. 4780117328Sluigi */ 4781117328Sluigi int first, i, l; 4782117328Sluigi 4783117328Sluigi av = calloc(oldac, sizeof(char *)); 4784117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 4785117328Sluigi char *arg = oldav[i]; 4786117328Sluigi int k = strlen(arg); 4787117328Sluigi 4788117328Sluigi l += k; 4789117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 4790117328Sluigi /* Time to copy. */ 4791117328Sluigi av[ac] = calloc(l+1, 1); 4792117328Sluigi for (l=0; first <= i; first++) { 4793117328Sluigi strcat(av[ac]+l, oldav[first]); 4794117328Sluigi l += strlen(oldav[first]); 4795117328Sluigi } 4796117328Sluigi ac++; 4797117328Sluigi l = 0; 4798117328Sluigi first = i+1; 4799117328Sluigi } 4800117328Sluigi } 4801117328Sluigi } 4802117328Sluigi 480398943Sluigi /* Set the force flag for non-interactive processes */ 4804123804Smaxim if (!do_force) 4805123804Smaxim do_force = !isatty(STDIN_FILENO); 480698943Sluigi 4807117469Sluigi /* Save arguments for final freeing of memory. */ 4808117469Sluigi save_ac = ac; 4809117469Sluigi save_av = av; 4810117469Sluigi 4811117469Sluigi optind = optreset = 0; 4812123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 481398943Sluigi switch (ch) { 481498943Sluigi case 'a': 481598943Sluigi do_acct = 1; 481698943Sluigi break; 4817117328Sluigi 4818123495Sluigi case 'b': 4819123495Sluigi comment_only = 1; 4820123495Sluigi do_compact = 1; 4821123495Sluigi break; 4822123495Sluigi 4823102098Sluigi case 'c': 4824102098Sluigi do_compact = 1; 4825102098Sluigi break; 4826117328Sluigi 482798943Sluigi case 'd': 482898943Sluigi do_dynamic = 1; 482998943Sluigi break; 4830117328Sluigi 483198943Sluigi case 'e': 483298943Sluigi do_expired = 1; 483398943Sluigi break; 4834117328Sluigi 483598943Sluigi case 'f': 483698943Sluigi do_force = 1; 483798943Sluigi break; 4838117328Sluigi 4839117328Sluigi case 'h': /* help */ 4840117544Sluigi free_args(save_ac, save_av); 4841117328Sluigi help(); 4842117328Sluigi break; /* NOTREACHED */ 4843117328Sluigi 4844117328Sluigi case 'n': 4845117328Sluigi test_only = 1; 4846117328Sluigi break; 4847117328Sluigi 484898943Sluigi case 'N': 484998943Sluigi do_resolv = 1; 485098943Sluigi break; 4851117328Sluigi 485298943Sluigi case 'q': 485398943Sluigi do_quiet = 1; 485498943Sluigi break; 4855117328Sluigi 4856117328Sluigi case 's': /* sort */ 4857117328Sluigi do_sort = atoi(optarg); 4858117328Sluigi break; 4859117328Sluigi 4860101628Sluigi case 'S': 4861101628Sluigi show_sets = 1; 4862101628Sluigi break; 4863117328Sluigi 486498943Sluigi case 't': 486598943Sluigi do_time = 1; 486698943Sluigi break; 4867117328Sluigi 4868117472Sluigi case 'T': 4869117472Sluigi do_time = 2; /* numeric timestamp */ 4870117472Sluigi break; 4871117472Sluigi 487298943Sluigi case 'v': /* verbose */ 4873117328Sluigi verbose = 1; 487498943Sluigi break; 4875117328Sluigi 487698943Sluigi default: 4877117544Sluigi free_args(save_ac, save_av); 4878117544Sluigi return 1; 487998943Sluigi } 488098943Sluigi 488198943Sluigi ac -= optind; 488298943Sluigi av += optind; 488398943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 488498943Sluigi 488598943Sluigi /* 4886117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 4887117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 4888117544Sluigi * In case, swap first and second argument to get the normal form. 4889117544Sluigi */ 4890117544Sluigi if (ac > 1 && isdigit(*av[0])) { 4891117544Sluigi char *p = av[0]; 4892117544Sluigi 4893117544Sluigi av[0] = av[1]; 4894117544Sluigi av[1] = p; 4895117544Sluigi } 4896117544Sluigi 4897117544Sluigi /* 489898943Sluigi * optional: pipe or queue 489998943Sluigi */ 4900117821Smaxim do_pipe = 0; 4901140271Sbrooks if (_substrcmp(*av, "pipe") == 0) 490298943Sluigi do_pipe = 1; 4903140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 490498943Sluigi do_pipe = 2; 4905117544Sluigi if (do_pipe) { 490698943Sluigi ac--; 490798943Sluigi av++; 490898943Sluigi } 490998943Sluigi NEED1("missing command"); 491098943Sluigi 491198943Sluigi /* 4912117328Sluigi * For pipes and queues we normally say 'pipe NN config' 491398943Sluigi * but the code is easier to parse as 'pipe config NN' 491498943Sluigi * so we swap the two arguments. 491598943Sluigi */ 4916117469Sluigi if (do_pipe > 0 && ac > 1 && isdigit(*av[0])) { 491798943Sluigi char *p = av[0]; 4918117544Sluigi 491998943Sluigi av[0] = av[1]; 492098943Sluigi av[1] = p; 492198943Sluigi } 4922117328Sluigi 4923140271Sbrooks if (_substrcmp(*av, "add") == 0) 492498943Sluigi add(ac, av); 4925140271Sbrooks else if (do_pipe && _substrcmp(*av, "config") == 0) 492698943Sluigi config_pipe(ac, av); 4927140271Sbrooks else if (_substrcmp(*av, "delete") == 0) 492898943Sluigi delete(ac, av); 4929140271Sbrooks else if (_substrcmp(*av, "flush") == 0) 4930117544Sluigi flush(do_force); 4931140271Sbrooks else if (_substrcmp(*av, "zero") == 0) 4932117328Sluigi zero(ac, av, IP_FW_ZERO); 4933140271Sbrooks else if (_substrcmp(*av, "resetlog") == 0) 4934117328Sluigi zero(ac, av, IP_FW_RESETLOG); 4935140271Sbrooks else if (_substrcmp(*av, "print") == 0 || 4936140271Sbrooks _substrcmp(*av, "list") == 0) 4937117469Sluigi list(ac, av, do_acct); 4938140271Sbrooks else if (_substrcmp(*av, "set") == 0) 4939101978Sluigi sets_handler(ac, av); 4940140271Sbrooks else if (_substrcmp(*av, "table") == 0) 4941130281Sru table_handler(ac, av); 4942140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 4943109126Sdillon sysctl_handler(ac, av, 1); 4944140271Sbrooks else if (_substrcmp(*av, "disable") == 0) 4945109126Sdillon sysctl_handler(ac, av, 0); 4946140271Sbrooks else if (_substrcmp(*av, "show") == 0) 4947117469Sluigi list(ac, av, 1 /* show counters */); 4948117469Sluigi else 494998943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 4950117469Sluigi 4951117469Sluigi /* Free memory allocated in the argument parsing. */ 4952117544Sluigi free_args(save_ac, save_av); 495398943Sluigi return 0; 495498943Sluigi} 495598943Sluigi 495698943Sluigi 495798943Sluigistatic void 4958106505Smaximipfw_readfile(int ac, char *av[]) 495998943Sluigi{ 496098943Sluigi#define MAX_ARGS 32 496198943Sluigi char buf[BUFSIZ]; 4962117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 4963117469Sluigi int c, lineno=0; 496498943Sluigi FILE *f = NULL; 496598943Sluigi pid_t preproc = 0; 496698943Sluigi 4967117469Sluigi filename = av[ac-1]; 4968117469Sluigi 4969123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 497098943Sluigi switch(c) { 4971117469Sluigi case 'c': 4972117469Sluigi do_compact = 1; 4973117469Sluigi break; 4974117469Sluigi 4975123804Smaxim case 'f': 4976123804Smaxim do_force = 1; 4977123804Smaxim break; 4978123804Smaxim 4979117469Sluigi case 'N': 4980117469Sluigi do_resolv = 1; 4981117469Sluigi break; 4982117469Sluigi 4983117328Sluigi case 'n': 4984117328Sluigi test_only = 1; 4985117328Sluigi break; 4986117328Sluigi 498798943Sluigi case 'p': 498898943Sluigi cmd = optarg; 4989117469Sluigi /* 4990117469Sluigi * Skip previous args and delete last one, so we 4991117469Sluigi * pass all but the last argument to the preprocessor 4992117469Sluigi * via av[optind-1] 4993117469Sluigi */ 4994117469Sluigi av += optind - 1; 4995117469Sluigi ac -= optind - 1; 4996117469Sluigi av[ac-1] = NULL; 4997117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 499898943Sluigi break; 499998943Sluigi 500098943Sluigi case 'q': 5001117469Sluigi do_quiet = 1; 500298943Sluigi break; 500398943Sluigi 5004117469Sluigi case 'S': 5005117469Sluigi show_sets = 1; 5006117469Sluigi break; 5007117469Sluigi 500898943Sluigi default: 500998943Sluigi errx(EX_USAGE, "bad arguments, for usage" 501098943Sluigi " summary ``ipfw''"); 501198943Sluigi } 501298943Sluigi 5013117469Sluigi if (cmd != NULL) 5014108231Skbyanc break; 5015108231Skbyanc } 5016108231Skbyanc 5017117469Sluigi if (cmd == NULL && ac != optind + 1) { 5018117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 5019117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 5020108231Skbyanc } 5021108231Skbyanc 5022117469Sluigi if ((f = fopen(filename, "r")) == NULL) 5023117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 502498943Sluigi 5025117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 502698943Sluigi int pipedes[2]; 502798943Sluigi 502898943Sluigi if (pipe(pipedes) == -1) 502998943Sluigi err(EX_OSERR, "cannot create pipe"); 503098943Sluigi 5031117469Sluigi preproc = fork(); 5032117469Sluigi if (preproc == -1) 503398943Sluigi err(EX_OSERR, "cannot fork"); 503498943Sluigi 5035117577Sluigi if (preproc == 0) { 5036117469Sluigi /* 5037117469Sluigi * Child, will run the preprocessor with the 5038117469Sluigi * file on stdin and the pipe on stdout. 5039117469Sluigi */ 504098943Sluigi if (dup2(fileno(f), 0) == -1 504198943Sluigi || dup2(pipedes[1], 1) == -1) 504298943Sluigi err(EX_OSERR, "dup2()"); 504398943Sluigi fclose(f); 504498943Sluigi close(pipedes[1]); 504598943Sluigi close(pipedes[0]); 5046117469Sluigi execvp(cmd, av); 504798943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 5048117469Sluigi } else { /* parent, will reopen f as the pipe */ 504998943Sluigi fclose(f); 505098943Sluigi close(pipedes[1]); 505198943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 505298943Sluigi int savederrno = errno; 505398943Sluigi 505498943Sluigi (void)kill(preproc, SIGTERM); 505598943Sluigi errno = savederrno; 505698943Sluigi err(EX_OSERR, "fdopen()"); 505798943Sluigi } 505898943Sluigi } 505998943Sluigi } 506098943Sluigi 5061117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 5062117469Sluigi char linename[10]; 5063117469Sluigi char *args[1]; 5064117469Sluigi 506598943Sluigi lineno++; 506698943Sluigi sprintf(linename, "Line %d", lineno); 5067117328Sluigi setprogname(linename); /* XXX */ 5068117469Sluigi args[0] = buf; 5069117469Sluigi ipfw_main(1, args); 507098943Sluigi } 507198943Sluigi fclose(f); 5072117469Sluigi if (cmd != NULL) { 5073117469Sluigi int status; 5074117469Sluigi 507598943Sluigi if (waitpid(preproc, &status, 0) == -1) 507698943Sluigi errx(EX_OSERR, "waitpid()"); 507798943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 507898943Sluigi errx(EX_UNAVAILABLE, 507998943Sluigi "preprocessor exited with status %d", 508098943Sluigi WEXITSTATUS(status)); 508198943Sluigi else if (WIFSIGNALED(status)) 508298943Sluigi errx(EX_UNAVAILABLE, 508398943Sluigi "preprocessor exited with signal %d", 508498943Sluigi WTERMSIG(status)); 508598943Sluigi } 508698943Sluigi} 508798943Sluigi 508898943Sluigiint 508998943Sluigimain(int ac, char *av[]) 509098943Sluigi{ 509198943Sluigi /* 509298943Sluigi * If the last argument is an absolute pathname, interpret it 509398943Sluigi * as a file to be preprocessed. 509498943Sluigi */ 509598943Sluigi 509698943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 509798943Sluigi ipfw_readfile(ac, av); 5098117544Sluigi else { 5099117544Sluigi if (ipfw_main(ac-1, av+1)) 5100117544Sluigi show_usage(); 5101117544Sluigi } 510298943Sluigi return EX_OK; 510398943Sluigi} 5104