ipfw2.c revision 158553
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 158553 2006-05-14 03:53:04Z mlaier $ 2198943Sluigi */ 2298943Sluigi 2398943Sluigi#include <sys/param.h> 2498943Sluigi#include <sys/mbuf.h> 2598943Sluigi#include <sys/socket.h> 2698943Sluigi#include <sys/sockio.h> 2798943Sluigi#include <sys/sysctl.h> 2898943Sluigi#include <sys/time.h> 2998943Sluigi#include <sys/wait.h> 30136071Sgreen#include <sys/queue.h> 3198943Sluigi 3298943Sluigi#include <ctype.h> 3398943Sluigi#include <err.h> 3498943Sluigi#include <errno.h> 3598943Sluigi#include <grp.h> 3698943Sluigi#include <limits.h> 3798943Sluigi#include <netdb.h> 3898943Sluigi#include <pwd.h> 3998943Sluigi#include <signal.h> 4098943Sluigi#include <stdio.h> 4198943Sluigi#include <stdlib.h> 4298943Sluigi#include <stdarg.h> 4398943Sluigi#include <string.h> 44117469Sluigi#include <timeconv.h> /* XXX do we need this ? */ 4598943Sluigi#include <unistd.h> 4698943Sluigi#include <sysexits.h> 47136071Sgreen#include <unistd.h> 48136071Sgreen#include <fcntl.h> 4998943Sluigi 5098943Sluigi#include <net/if.h> 51136071Sgreen#include <net/pfvar.h> 52145246Sbrooks#include <net/route.h> /* def. of struct route */ 5398943Sluigi#include <netinet/in.h> 5498943Sluigi#include <netinet/in_systm.h> 5598943Sluigi#include <netinet/ip.h> 5698943Sluigi#include <netinet/ip_icmp.h> 57145246Sbrooks#include <netinet/icmp6.h> 5898943Sluigi#include <netinet/ip_fw.h> 5998943Sluigi#include <netinet/ip_dummynet.h> 6098943Sluigi#include <netinet/tcp.h> 6198943Sluigi#include <arpa/inet.h> 6298943Sluigi 63117328Sluigiint 6498943Sluigi do_resolv, /* Would try to resolve all */ 6598943Sluigi do_time, /* Show time stamps */ 6698943Sluigi do_quiet, /* Be quiet in add and flush */ 6798943Sluigi do_pipe, /* this cmd refers to a pipe */ 6898943Sluigi do_sort, /* field to sort results (0 = no) */ 6998943Sluigi do_dynamic, /* display dynamic rules */ 7098943Sluigi do_expired, /* display expired dynamic rules */ 71102098Sluigi do_compact, /* show rules in compact mode */ 72123804Smaxim do_force, /* do not ask for confirmation */ 73101628Sluigi show_sets, /* display rule sets */ 74117328Sluigi test_only, /* only check syntax */ 75123495Sluigi comment_only, /* only print action and comment */ 7698943Sluigi verbose; 7798943Sluigi 7898943Sluigi#define IP_MASK_ALL 0xffffffff 79130013Scsjp/* 80130013Scsjp * the following macro returns an error message if we run out of 81130013Scsjp * arguments. 82130013Scsjp */ 83130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 8498943Sluigi 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, 278146894Smlaier 279146894Smlaier TOK_IPV4, 280149020Sbz TOK_UNREACH6, 281149020Sbz TOK_RESET6, 28298943Sluigi}; 28398943Sluigi 28498943Sluigistruct _s_x dummynet_params[] = { 28598943Sluigi { "plr", TOK_PLR }, 286101978Sluigi { "noerror", TOK_NOERROR }, 28798943Sluigi { "buckets", TOK_BUCKETS }, 28898943Sluigi { "dst-ip", TOK_DSTIP }, 28998943Sluigi { "src-ip", TOK_SRCIP }, 29098943Sluigi { "dst-port", TOK_DSTPORT }, 29198943Sluigi { "src-port", TOK_SRCPORT }, 29298943Sluigi { "proto", TOK_PROTO }, 29398943Sluigi { "weight", TOK_WEIGHT }, 29498943Sluigi { "all", TOK_ALL }, 29598943Sluigi { "mask", TOK_MASK }, 29698943Sluigi { "droptail", TOK_DROPTAIL }, 29798943Sluigi { "red", TOK_RED }, 29898943Sluigi { "gred", TOK_GRED }, 29998943Sluigi { "bw", TOK_BW }, 30098943Sluigi { "bandwidth", TOK_BW }, 30198943Sluigi { "delay", TOK_DELAY }, 30299475Sluigi { "pipe", TOK_PIPE }, 30398943Sluigi { "queue", TOK_QUEUE }, 304145246Sbrooks { "flow-id", TOK_FLOWID}, 305145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 306145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 307145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 308145246Sbrooks { "src-ip6", TOK_SRCIP6}, 30998943Sluigi { "dummynet-params", TOK_NULL }, 310117328Sluigi { NULL, 0 } /* terminator */ 31198943Sluigi}; 31298943Sluigi 31398943Sluigistruct _s_x rule_actions[] = { 31498943Sluigi { "accept", TOK_ACCEPT }, 31598943Sluigi { "pass", TOK_ACCEPT }, 31698943Sluigi { "allow", TOK_ACCEPT }, 31798943Sluigi { "permit", TOK_ACCEPT }, 31898943Sluigi { "count", TOK_COUNT }, 31998943Sluigi { "pipe", TOK_PIPE }, 32098943Sluigi { "queue", TOK_QUEUE }, 32198943Sluigi { "divert", TOK_DIVERT }, 32298943Sluigi { "tee", TOK_TEE }, 323141351Sglebius { "netgraph", TOK_NETGRAPH }, 324141351Sglebius { "ngtee", TOK_NGTEE }, 32598943Sluigi { "fwd", TOK_FORWARD }, 32698943Sluigi { "forward", TOK_FORWARD }, 32798943Sluigi { "skipto", TOK_SKIPTO }, 32898943Sluigi { "deny", TOK_DENY }, 32998943Sluigi { "drop", TOK_DENY }, 33098943Sluigi { "reject", TOK_REJECT }, 331149020Sbz { "reset6", TOK_RESET6 }, 33298943Sluigi { "reset", TOK_RESET }, 333149020Sbz { "unreach6", TOK_UNREACH6 }, 33499475Sluigi { "unreach", TOK_UNREACH }, 33598943Sluigi { "check-state", TOK_CHECKSTATE }, 336117469Sluigi { "//", TOK_COMMENT }, 337117328Sluigi { NULL, 0 } /* terminator */ 33898943Sluigi}; 33998943Sluigi 340136071Sgreenstruct _s_x rule_action_params[] = { 341136071Sgreen { "altq", TOK_ALTQ }, 342136071Sgreen { "log", TOK_LOG }, 343136071Sgreen { NULL, 0 } /* terminator */ 344136071Sgreen}; 345136071Sgreen 34698943Sluigistruct _s_x rule_options[] = { 34798943Sluigi { "uid", TOK_UID }, 34898943Sluigi { "gid", TOK_GID }, 349133600Scsjp { "jail", TOK_JAIL }, 35098943Sluigi { "in", TOK_IN }, 35198943Sluigi { "limit", TOK_LIMIT }, 35298943Sluigi { "keep-state", TOK_KEEPSTATE }, 35398943Sluigi { "bridged", TOK_LAYER2 }, 35498943Sluigi { "layer2", TOK_LAYER2 }, 35598943Sluigi { "out", TOK_OUT }, 356136073Sgreen { "diverted", TOK_DIVERTED }, 357136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 358136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 35998943Sluigi { "xmit", TOK_XMIT }, 36098943Sluigi { "recv", TOK_RECV }, 36198943Sluigi { "via", TOK_VIA }, 36298943Sluigi { "fragment", TOK_FRAG }, 36398943Sluigi { "frag", TOK_FRAG }, 36498943Sluigi { "ipoptions", TOK_IPOPTS }, 36598943Sluigi { "ipopts", TOK_IPOPTS }, 36698943Sluigi { "iplen", TOK_IPLEN }, 36798943Sluigi { "ipid", TOK_IPID }, 36898943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 36998943Sluigi { "iptos", TOK_IPTOS }, 37098943Sluigi { "ipttl", TOK_IPTTL }, 37198943Sluigi { "ipversion", TOK_IPVER }, 37298943Sluigi { "ipver", TOK_IPVER }, 37398943Sluigi { "estab", TOK_ESTAB }, 37498943Sluigi { "established", TOK_ESTAB }, 37598943Sluigi { "setup", TOK_SETUP }, 376136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 37798943Sluigi { "tcpflags", TOK_TCPFLAGS }, 37898943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 37998943Sluigi { "tcpoptions", TOK_TCPOPTS }, 38098943Sluigi { "tcpopts", TOK_TCPOPTS }, 38198943Sluigi { "tcpseq", TOK_TCPSEQ }, 38298943Sluigi { "tcpack", TOK_TCPACK }, 38398943Sluigi { "tcpwin", TOK_TCPWIN }, 38499909Sluigi { "icmptype", TOK_ICMPTYPES }, 38598943Sluigi { "icmptypes", TOK_ICMPTYPES }, 386102087Sluigi { "dst-ip", TOK_DSTIP }, 387102087Sluigi { "src-ip", TOK_SRCIP }, 388102087Sluigi { "dst-port", TOK_DSTPORT }, 389102087Sluigi { "src-port", TOK_SRCPORT }, 390102087Sluigi { "proto", TOK_PROTO }, 391102087Sluigi { "MAC", TOK_MAC }, 392102087Sluigi { "mac", TOK_MAC }, 393102087Sluigi { "mac-type", TOK_MACTYPE }, 394112250Scjc { "verrevpath", TOK_VERREVPATH }, 395128575Sandre { "versrcreach", TOK_VERSRCREACH }, 396133387Sandre { "antispoof", TOK_ANTISPOOF }, 397117241Sluigi { "ipsec", TOK_IPSEC }, 398145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 399145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 400145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 401145246Sbrooks { "flow-id", TOK_FLOWID}, 402145246Sbrooks { "ipv6", TOK_IPV6}, 403145246Sbrooks { "ip6", TOK_IPV6}, 404146894Smlaier { "ipv4", TOK_IPV4}, 405146894Smlaier { "ip4", TOK_IPV4}, 406145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 407145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 408145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 409145246Sbrooks { "src-ip6", TOK_SRCIP6}, 410117469Sluigi { "//", TOK_COMMENT }, 41198943Sluigi 41298943Sluigi { "not", TOK_NOT }, /* pseudo option */ 41398943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 41498943Sluigi { "or", TOK_OR }, /* pseudo option */ 41598943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 416101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 417101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 418101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 419101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 420117328Sluigi { NULL, 0 } /* terminator */ 42198943Sluigi}; 42298943Sluigi 423153374Sglebius#define TABLEARG "tablearg" 424153374Sglebius 425117328Sluigistatic __inline uint64_t 426117328Sluigialign_uint64(uint64_t *pll) { 427117328Sluigi uint64_t ret; 428115793Sticso 429115793Sticso bcopy (pll, &ret, sizeof(ret)); 430115793Sticso return ret; 431129389Sstefanf} 432115793Sticso 433117328Sluigi/* 434117328Sluigi * conditionally runs the command. 435117328Sluigi */ 436117469Sluigistatic int 437119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 438117328Sluigi{ 439117328Sluigi static int s = -1; /* the socket */ 440117328Sluigi int i; 441117577Sluigi 442117328Sluigi if (test_only) 443117328Sluigi return 0; 444117328Sluigi 445117328Sluigi if (s == -1) 446117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 447117328Sluigi if (s < 0) 448117328Sluigi err(EX_UNAVAILABLE, "socket"); 449117328Sluigi 450117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 451130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 452130281Sru optname == IP_FW_TABLE_GETSIZE) 453117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 454117328Sluigi (socklen_t *)optlen); 455117328Sluigi else 456117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 457117328Sluigi return i; 458117328Sluigi} 459117328Sluigi 46098943Sluigi/** 46198943Sluigi * match_token takes a table and a string, returns the value associated 462117328Sluigi * with the string (-1 in case of failure). 46398943Sluigi */ 46498943Sluigistatic int 46598943Sluigimatch_token(struct _s_x *table, char *string) 46698943Sluigi{ 46798943Sluigi struct _s_x *pt; 468117469Sluigi uint i = strlen(string); 46998943Sluigi 47098943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 47198943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 47298943Sluigi return pt->x; 47398943Sluigi return -1; 474129389Sstefanf} 47598943Sluigi 476117328Sluigi/** 477117328Sluigi * match_value takes a table and a value, returns the string associated 478117328Sluigi * with the value (NULL in case of failure). 479117328Sluigi */ 480117469Sluigistatic char const * 481117469Sluigimatch_value(struct _s_x *p, int value) 48298943Sluigi{ 48398943Sluigi for (; p->s != NULL; p++) 48498943Sluigi if (p->x == value) 48598943Sluigi return p->s; 48698943Sluigi return NULL; 48798943Sluigi} 48898943Sluigi 48998943Sluigi/* 490140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 491140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 492140271Sbrooks * of the second. A warning is printed to stderr in the case that the 493140271Sbrooks * first string is a sub-string of the second. 494140271Sbrooks * 495140271Sbrooks * This function will be removed in the future through the usual 496140271Sbrooks * deprecation process. 497140271Sbrooks */ 498140271Sbrooksstatic int 499140271Sbrooks_substrcmp(const char *str1, const char* str2) 500140271Sbrooks{ 501140271Sbrooks 502140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 503140271Sbrooks return 1; 504140271Sbrooks 505140271Sbrooks if (strlen(str1) != strlen(str2)) 506140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 507140271Sbrooks str1, str2); 508140271Sbrooks return 0; 509140271Sbrooks} 510140271Sbrooks 511140271Sbrooks/* 512140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 513140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 514140271Sbrooks * of the first. A warning is printed to stderr in the case that the 515140271Sbrooks * first string does not match the third. 516140271Sbrooks * 517140271Sbrooks * This function exists to warn about the bizzare construction 518140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 519140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 520140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 521140271Sbrooks * other string beginning with "by". 522140271Sbrooks * 523140271Sbrooks * This function will be removed in the future through the usual 524140271Sbrooks * deprecation process. 525140271Sbrooks */ 526140271Sbrooksstatic int 527140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 528140271Sbrooks{ 529140271Sbrooks 530140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 531140271Sbrooks return 1; 532140271Sbrooks 533140271Sbrooks if (strcmp(str1, str3) != 0) 534140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 535140271Sbrooks str1, str3); 536140271Sbrooks return 0; 537140271Sbrooks} 538140271Sbrooks 539140271Sbrooks/* 54098943Sluigi * prints one port, symbolic or numeric 54198943Sluigi */ 54298943Sluigistatic void 543117328Sluigiprint_port(int proto, uint16_t port) 54498943Sluigi{ 54598943Sluigi 54698943Sluigi if (proto == IPPROTO_ETHERTYPE) { 547117469Sluigi char const *s; 54898943Sluigi 54998943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 55098943Sluigi printf("%s", s); 55198943Sluigi else 55298943Sluigi printf("0x%04x", port); 55398943Sluigi } else { 55498943Sluigi struct servent *se = NULL; 55598943Sluigi if (do_resolv) { 55698943Sluigi struct protoent *pe = getprotobynumber(proto); 55798943Sluigi 55898943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 55998943Sluigi } 56098943Sluigi if (se) 56198943Sluigi printf("%s", se->s_name); 56298943Sluigi else 56398943Sluigi printf("%d", port); 56498943Sluigi } 56598943Sluigi} 56698943Sluigi 567117328Sluigistruct _s_x _port_name[] = { 568117328Sluigi {"dst-port", O_IP_DSTPORT}, 569117328Sluigi {"src-port", O_IP_SRCPORT}, 570117328Sluigi {"ipid", O_IPID}, 571117328Sluigi {"iplen", O_IPLEN}, 572117328Sluigi {"ipttl", O_IPTTL}, 573117328Sluigi {"mac-type", O_MAC_TYPE}, 574136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 575117328Sluigi {NULL, 0} 576117328Sluigi}; 577117328Sluigi 57898943Sluigi/* 579117328Sluigi * Print the values in a list 16-bit items of the types above. 58098943Sluigi * XXX todo: add support for mask. 58198943Sluigi */ 58298943Sluigistatic void 583102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 58498943Sluigi{ 585117328Sluigi uint16_t *p = cmd->ports; 58698943Sluigi int i; 587117469Sluigi char const *sep; 58898943Sluigi 58998943Sluigi if (cmd->o.len & F_NOT) 59098943Sluigi printf(" not"); 591116690Sluigi if (opcode != 0) { 592117328Sluigi sep = match_value(_port_name, opcode); 593117328Sluigi if (sep == NULL) 594116690Sluigi sep = "???"; 595116690Sluigi printf (" %s", sep); 596116690Sluigi } 597116690Sluigi sep = " "; 59898943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 59998943Sluigi printf(sep); 60098943Sluigi print_port(proto, p[0]); 60198943Sluigi if (p[0] != p[1]) { 60298943Sluigi printf("-"); 60398943Sluigi print_port(proto, p[1]); 60498943Sluigi } 60598943Sluigi sep = ","; 60698943Sluigi } 60798943Sluigi} 60898943Sluigi 60998943Sluigi/* 61098943Sluigi * Like strtol, but also translates service names into port numbers 61198943Sluigi * for some protocols. 61298943Sluigi * In particular: 61398943Sluigi * proto == -1 disables the protocol check; 61498943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 61598943Sluigi * proto == <some value in /etc/protocols> matches the values there. 616101628Sluigi * Returns *end == s in case the parameter is not found. 61798943Sluigi */ 61898943Sluigistatic int 61998943Sluigistrtoport(char *s, char **end, int base, int proto) 62098943Sluigi{ 621101628Sluigi char *p, *buf; 622101628Sluigi char *s1; 62398943Sluigi int i; 62498943Sluigi 625101628Sluigi *end = s; /* default - not found */ 626117577Sluigi if (*s == '\0') 627101628Sluigi return 0; /* not found */ 628106505Smaxim 62998943Sluigi if (isdigit(*s)) 63098943Sluigi return strtol(s, end, base); 63198943Sluigi 63298943Sluigi /* 633101628Sluigi * find separator. '\\' escapes the next char. 63498943Sluigi */ 635101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 636101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 637101628Sluigi s1++; 63898943Sluigi 639101628Sluigi buf = malloc(s1 - s + 1); 640101628Sluigi if (buf == NULL) 641101628Sluigi return 0; 642101628Sluigi 643101628Sluigi /* 644101628Sluigi * copy into a buffer skipping backslashes 645101628Sluigi */ 646101628Sluigi for (p = s, i = 0; p != s1 ; p++) 647117577Sluigi if (*p != '\\') 648101628Sluigi buf[i++] = *p; 649101628Sluigi buf[i++] = '\0'; 650101628Sluigi 65198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 652101628Sluigi i = match_token(ether_types, buf); 653101628Sluigi free(buf); 654101628Sluigi if (i != -1) { /* found */ 65598943Sluigi *end = s1; 65698943Sluigi return i; 65798943Sluigi } 65898943Sluigi } else { 65998943Sluigi struct protoent *pe = NULL; 66098943Sluigi struct servent *se; 66198943Sluigi 66298943Sluigi if (proto != 0) 66398943Sluigi pe = getprotobynumber(proto); 66498943Sluigi setservent(1); 665101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 666101628Sluigi free(buf); 66798943Sluigi if (se != NULL) { 66898943Sluigi *end = s1; 66998943Sluigi return ntohs(se->s_port); 67098943Sluigi } 67198943Sluigi } 672101628Sluigi return 0; /* not found */ 67398943Sluigi} 67498943Sluigi 67598943Sluigi/* 676136071Sgreen * Map between current altq queue id numbers and names. 677136071Sgreen */ 678136071Sgreenstatic int altq_fetched = 0; 679136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 680136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 681136071Sgreen 682136071Sgreenstatic void 683136071Sgreenaltq_set_enabled(int enabled) 684136071Sgreen{ 685136071Sgreen int pffd; 686136071Sgreen 687136071Sgreen pffd = open("/dev/pf", O_RDWR); 688136071Sgreen if (pffd == -1) 689136071Sgreen err(EX_UNAVAILABLE, 690136071Sgreen "altq support opening pf(4) control device"); 691136071Sgreen if (enabled) { 692136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 693136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 694136071Sgreen } else { 695136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 696136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 697136071Sgreen } 698136071Sgreen close(pffd); 699136071Sgreen} 700136071Sgreen 701136071Sgreenstatic void 702136071Sgreenaltq_fetch() 703136071Sgreen{ 704136071Sgreen struct pfioc_altq pfioc; 705136071Sgreen struct pf_altq *altq; 706136071Sgreen int pffd, mnr; 707136071Sgreen 708136071Sgreen if (altq_fetched) 709136071Sgreen return; 710136071Sgreen altq_fetched = 1; 711136071Sgreen pffd = open("/dev/pf", O_RDONLY); 712136071Sgreen if (pffd == -1) { 713136071Sgreen warn("altq support opening pf(4) control device"); 714136071Sgreen return; 715136071Sgreen } 716136071Sgreen bzero(&pfioc, sizeof(pfioc)); 717136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 718136071Sgreen warn("altq support getting queue list"); 719136071Sgreen close(pffd); 720136071Sgreen return; 721136071Sgreen } 722136071Sgreen mnr = pfioc.nr; 723136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 724136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 725136071Sgreen if (errno == EBUSY) 726136071Sgreen break; 727136071Sgreen warn("altq support getting queue list"); 728136071Sgreen close(pffd); 729136071Sgreen return; 730136071Sgreen } 731136071Sgreen if (pfioc.altq.qid == 0) 732136071Sgreen continue; 733136071Sgreen altq = malloc(sizeof(*altq)); 734136071Sgreen if (altq == NULL) 735136071Sgreen err(EX_OSERR, "malloc"); 736136071Sgreen *altq = pfioc.altq; 737136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 738136071Sgreen } 739136071Sgreen close(pffd); 740136071Sgreen} 741136071Sgreen 742136071Sgreenstatic u_int32_t 743136071Sgreenaltq_name_to_qid(const char *name) 744136071Sgreen{ 745136071Sgreen struct pf_altq *altq; 746136071Sgreen 747136071Sgreen altq_fetch(); 748136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 749136071Sgreen if (strcmp(name, altq->qname) == 0) 750136071Sgreen break; 751136071Sgreen if (altq == NULL) 752136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 753136071Sgreen return altq->qid; 754136071Sgreen} 755136071Sgreen 756136071Sgreenstatic const char * 757136071Sgreenaltq_qid_to_name(u_int32_t qid) 758136071Sgreen{ 759136071Sgreen struct pf_altq *altq; 760136071Sgreen 761136071Sgreen altq_fetch(); 762136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 763136071Sgreen if (qid == altq->qid) 764136071Sgreen break; 765136071Sgreen if (altq == NULL) 766136071Sgreen return NULL; 767136071Sgreen return altq->qname; 768136071Sgreen} 769136071Sgreen 770136071Sgreenstatic void 771136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 772136071Sgreen{ 773136071Sgreen *qid = altq_name_to_qid(av); 774136071Sgreen} 775136071Sgreen 776136071Sgreen/* 777117328Sluigi * Fill the body of the command with the list of port ranges. 77898943Sluigi */ 77998943Sluigistatic int 78098943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 78198943Sluigi{ 782117328Sluigi uint16_t a, b, *p = cmd->ports; 78398943Sluigi int i = 0; 784102087Sluigi char *s = av; 78598943Sluigi 786102087Sluigi while (*s) { 78798943Sluigi a = strtoport(av, &s, 0, proto); 78898943Sluigi if (s == av) /* no parameter */ 78998943Sluigi break; 79098943Sluigi if (*s == '-') { /* a range */ 79198943Sluigi av = s+1; 79298943Sluigi b = strtoport(av, &s, 0, proto); 79398943Sluigi if (s == av) /* no parameter */ 79498943Sluigi break; 79598943Sluigi p[0] = a; 79698943Sluigi p[1] = b; 797117328Sluigi } else if (*s == ',' || *s == '\0' ) 79898943Sluigi p[0] = p[1] = a; 799117328Sluigi else /* invalid separator */ 800101978Sluigi errx(EX_DATAERR, "invalid separator <%c> in <%s>\n", 801101978Sluigi *s, av); 802102087Sluigi i++; 803102087Sluigi p += 2; 80498943Sluigi av = s+1; 80598943Sluigi } 80698943Sluigi if (i > 0) { 80798943Sluigi if (i+1 > F_LEN_MASK) 808102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 80998943Sluigi cmd->o.len |= i+1; /* leave F_NOT and F_OR untouched */ 81098943Sluigi } 81198943Sluigi return i; 81298943Sluigi} 81398943Sluigi 81498943Sluigistatic struct _s_x icmpcodes[] = { 81598943Sluigi { "net", ICMP_UNREACH_NET }, 81698943Sluigi { "host", ICMP_UNREACH_HOST }, 81798943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 81898943Sluigi { "port", ICMP_UNREACH_PORT }, 81998943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 82098943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 82198943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 82298943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 82398943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 82498943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 82598943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 82698943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 82798943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 82898943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 82998943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 83098943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 83198943Sluigi { NULL, 0 } 83298943Sluigi}; 83398943Sluigi 83498943Sluigistatic void 83598943Sluigifill_reject_code(u_short *codep, char *str) 83698943Sluigi{ 83798943Sluigi int val; 83898943Sluigi char *s; 83998943Sluigi 84098943Sluigi val = strtoul(str, &s, 0); 84198943Sluigi if (s == str || *s != '\0' || val >= 0x100) 84298943Sluigi val = match_token(icmpcodes, str); 843102087Sluigi if (val < 0) 84498943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 84598943Sluigi *codep = val; 84698943Sluigi return; 84798943Sluigi} 84898943Sluigi 84998943Sluigistatic void 850117328Sluigiprint_reject_code(uint16_t code) 85198943Sluigi{ 852117469Sluigi char const *s = match_value(icmpcodes, code); 85398943Sluigi 85498943Sluigi if (s != NULL) 85599475Sluigi printf("unreach %s", s); 85698943Sluigi else 85799475Sluigi printf("unreach %u", code); 85898943Sluigi} 85998943Sluigi 860149020Sbzstatic struct _s_x icmp6codes[] = { 861149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 862149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 863149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 864149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 865149020Sbz { NULL, 0 } 866149020Sbz}; 867149020Sbz 868149020Sbzstatic void 869149020Sbzfill_unreach6_code(u_short *codep, char *str) 870149020Sbz{ 871149020Sbz int val; 872149020Sbz char *s; 873149020Sbz 874149020Sbz val = strtoul(str, &s, 0); 875149020Sbz if (s == str || *s != '\0' || val >= 0x100) 876149020Sbz val = match_token(icmp6codes, str); 877149020Sbz if (val < 0) 878149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 879149020Sbz *codep = val; 880149020Sbz return; 881149020Sbz} 882149020Sbz 883149020Sbzstatic void 884149020Sbzprint_unreach6_code(uint16_t code) 885149020Sbz{ 886149020Sbz char const *s = match_value(icmp6codes, code); 887149020Sbz 888149020Sbz if (s != NULL) 889149020Sbz printf("unreach6 %s", s); 890149020Sbz else 891149020Sbz printf("unreach6 %u", code); 892149020Sbz} 893149020Sbz 89498943Sluigi/* 89598943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 89698943Sluigi * or -1 if the mask is not contiguous. 89798943Sluigi * XXX this needs a proper fix. 89898943Sluigi * This effectively works on masks in big-endian (network) format. 89998943Sluigi * when compiled on little endian architectures. 90098943Sluigi * 90198943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 90298943Sluigi * the first bit on the wire is bit 0 of the first byte. 90398943Sluigi * len is the max length in bits. 90498943Sluigi */ 90598943Sluigistatic int 906117577Sluigicontigmask(uint8_t *p, int len) 90798943Sluigi{ 90898943Sluigi int i, n; 909117577Sluigi 91098943Sluigi for (i=0; i<len ; i++) 91198943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 91298943Sluigi break; 91398943Sluigi for (n=i+1; n < len; n++) 91498943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 91598943Sluigi return -1; /* mask not contiguous */ 91698943Sluigi return i; 91798943Sluigi} 91898943Sluigi 91998943Sluigi/* 92098943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 92198943Sluigi * There is a specialized check for f_tcpflags. 92298943Sluigi */ 92398943Sluigistatic void 924117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 92598943Sluigi{ 926117469Sluigi char const *comma = ""; 92798943Sluigi int i; 928117577Sluigi uint8_t set = cmd->arg1 & 0xff; 929117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 93098943Sluigi 93198943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 93298943Sluigi printf(" setup"); 93398943Sluigi return; 93498943Sluigi } 93598943Sluigi 93698943Sluigi printf(" %s ", name); 93798943Sluigi for (i=0; list[i].x != 0; i++) { 93898943Sluigi if (set & list[i].x) { 93998943Sluigi set &= ~list[i].x; 94098943Sluigi printf("%s%s", comma, list[i].s); 94198943Sluigi comma = ","; 94298943Sluigi } 94398943Sluigi if (clear & list[i].x) { 94498943Sluigi clear &= ~list[i].x; 94598943Sluigi printf("%s!%s", comma, list[i].s); 94698943Sluigi comma = ","; 94798943Sluigi } 94898943Sluigi } 94998943Sluigi} 95098943Sluigi 95198943Sluigi/* 95298943Sluigi * Print the ip address contained in a command. 95398943Sluigi */ 95498943Sluigistatic void 955117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 95698943Sluigi{ 95798943Sluigi struct hostent *he = NULL; 958117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 959117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 96098943Sluigi 961102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 96298943Sluigi 96398943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 96498943Sluigi printf("me"); 96598943Sluigi return; 96698943Sluigi } 967130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 968130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 969130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 970130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 971130281Sru printf(",%u", *a); 972130281Sru printf(")"); 973130281Sru return; 974130281Sru } 97598943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 976117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 977116716Sluigi int i, j; 97898943Sluigi char comma = '{'; 97998943Sluigi 98098943Sluigi x = cmd->o.arg1 - 1; 98198943Sluigi x = htonl( ~x ); 98298943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 98398943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 984117577Sluigi contigmask((uint8_t *)&x, 32)); 98598943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 98698943Sluigi x &= 0xff; /* base */ 987116716Sluigi /* 988116716Sluigi * Print bits and ranges. 989116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 990116716Sluigi * If we have 3+ consecutive bits set, then print them as a 991116716Sluigi * range, otherwise only print the initial bit and rescan. 992116716Sluigi */ 99398943Sluigi for (i=0; i < cmd->o.arg1; i++) 994117328Sluigi if (map[i/32] & (1<<(i & 31))) { 995116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 996117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 997116716Sluigi break; 99898943Sluigi printf("%c%d", comma, i+x); 999116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1000116716Sluigi printf("-%d", j-1+x); 1001116716Sluigi i = j-1; 1002116716Sluigi } 100398943Sluigi comma = ','; 100498943Sluigi } 100598943Sluigi printf("}"); 100698943Sluigi return; 100798943Sluigi } 1008117328Sluigi /* 1009117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1010117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1011117328Sluigi * use that to count the number of entries. 1012117328Sluigi */ 1013117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1014117328Sluigi int mb = /* mask length */ 1015117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1016117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 101798943Sluigi if (mb == 32 && do_resolv) 1018117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 101998943Sluigi if (he != NULL) /* resolved to name */ 102098943Sluigi printf("%s", he->h_name); 102198943Sluigi else if (mb == 0) /* any */ 102298943Sluigi printf("any"); 102398943Sluigi else { /* numeric IP followed by some kind of mask */ 1024117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 102598943Sluigi if (mb < 0) 1026117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 102798943Sluigi else if (mb < 32) 102898943Sluigi printf("/%d", mb); 102998943Sluigi } 1030117328Sluigi if (len > 1) 1031117328Sluigi printf(","); 1032117328Sluigi } 103398943Sluigi} 103498943Sluigi 103598943Sluigi/* 103698943Sluigi * prints a MAC address/mask pair 103798943Sluigi */ 103898943Sluigistatic void 1039117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 104098943Sluigi{ 104198943Sluigi int l = contigmask(mask, 48); 104298943Sluigi 104398943Sluigi if (l == 0) 104498943Sluigi printf(" any"); 104598943Sluigi else { 104698943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 104798943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 104898943Sluigi if (l == -1) 104998943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 105098943Sluigi mask[0], mask[1], mask[2], 105198943Sluigi mask[3], mask[4], mask[5]); 105298943Sluigi else if (l < 48) 105398943Sluigi printf("/%d", l); 105498943Sluigi } 105598943Sluigi} 105698943Sluigi 105799475Sluigistatic void 105899475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 105999475Sluigi{ 1060117328Sluigi uint8_t type; 106198943Sluigi 106299475Sluigi cmd->d[0] = 0; 106399475Sluigi while (*av) { 106499475Sluigi if (*av == ',') 106599475Sluigi av++; 106699475Sluigi 106799475Sluigi type = strtoul(av, &av, 0); 106899475Sluigi 106999475Sluigi if (*av != ',' && *av != '\0') 107099475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 107199475Sluigi 107299475Sluigi if (type > 31) 107399475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 107499475Sluigi 107599475Sluigi cmd->d[0] |= 1 << type; 107699475Sluigi } 107799475Sluigi cmd->o.opcode = O_ICMPTYPE; 107899475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 107999475Sluigi} 108099475Sluigi 108199475Sluigistatic void 108299475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 108399475Sluigi{ 108499475Sluigi int i; 108599475Sluigi char sep= ' '; 108699475Sluigi 108799475Sluigi printf(" icmptypes"); 108899475Sluigi for (i = 0; i < 32; i++) { 108999475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 109099475Sluigi continue; 109199475Sluigi printf("%c%d", sep, i); 109299475Sluigi sep = ','; 109399475Sluigi } 109499475Sluigi} 109599475Sluigi 1096145246Sbrooks/* 1097145246Sbrooks * Print the ip address contained in a command. 1098145246Sbrooks */ 1099145246Sbrooksstatic void 1100145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1101145246Sbrooks{ 1102145246Sbrooks struct hostent *he = NULL; 1103145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1104145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1105145246Sbrooks char trad[255]; 1106145246Sbrooks 1107145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1108145246Sbrooks 1109145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1110145246Sbrooks printf("me6"); 1111145246Sbrooks return; 1112145246Sbrooks } 1113145246Sbrooks if (cmd->o.opcode == O_IP6) { 1114152923Sume printf(" ip6"); 1115145246Sbrooks return; 1116145246Sbrooks } 1117145246Sbrooks 1118145246Sbrooks /* 1119145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1120145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1121145246Sbrooks * use that to count the number of entries. 1122145246Sbrooks */ 1123145246Sbrooks 1124145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1125145246Sbrooks int mb = /* mask length */ 1126145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1127145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1128145246Sbrooks 1129145246Sbrooks if (mb == 128 && do_resolv) 1130145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1131145246Sbrooks if (he != NULL) /* resolved to name */ 1132145246Sbrooks printf("%s", he->h_name); 1133145246Sbrooks else if (mb == 0) /* any */ 1134145246Sbrooks printf("any"); 1135145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1136145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1137145246Sbrooks printf("Error ntop in print_ip6\n"); 1138145246Sbrooks printf("%s", trad ); 1139145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1140145246Sbrooks printf(":%s", 1141145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1142145246Sbrooks else if (mb < 128) 1143145246Sbrooks printf("/%d", mb); 1144145246Sbrooks } 1145145246Sbrooks if (len > 2) 1146145246Sbrooks printf(","); 1147145246Sbrooks } 1148145246Sbrooks} 1149145246Sbrooks 1150145246Sbrooksstatic void 1151145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1152145246Sbrooks{ 1153145246Sbrooks uint8_t type; 1154145246Sbrooks 1155145246Sbrooks cmd->d[0] = 0; 1156145246Sbrooks while (*av) { 1157145246Sbrooks if (*av == ',') 1158145246Sbrooks av++; 1159145246Sbrooks type = strtoul(av, &av, 0); 1160145246Sbrooks if (*av != ',' && *av != '\0') 1161145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1162145246Sbrooks /* 1163145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1164145246Sbrooks * we shouldn't be able to filter all possiable values 1165145246Sbrooks * regardless of the ability of the rest of the kernel to do 1166145246Sbrooks * anything useful with them. 1167145246Sbrooks */ 1168145246Sbrooks if (type > ICMP6_MAXTYPE) 1169145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1170145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1171145246Sbrooks } 1172145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1173145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1174145246Sbrooks} 1175145246Sbrooks 1176145246Sbrooks 1177145246Sbrooksstatic void 1178145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1179145246Sbrooks{ 1180145246Sbrooks int i, j; 1181145246Sbrooks char sep= ' '; 1182145246Sbrooks 1183152923Sume printf(" ip6 icmp6types"); 1184145246Sbrooks for (i = 0; i < 7; i++) 1185145246Sbrooks for (j=0; j < 32; ++j) { 1186145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1187145246Sbrooks continue; 1188145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1189145246Sbrooks sep = ','; 1190145246Sbrooks } 1191145246Sbrooks} 1192145246Sbrooks 1193145246Sbrooksstatic void 1194145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1195145246Sbrooks{ 1196145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1197145246Sbrooks char sep = ','; 1198145246Sbrooks 1199145246Sbrooks printf(" flow-id "); 1200145246Sbrooks for( i=0; i < limit; ++i) { 1201145246Sbrooks if (i == limit - 1) 1202145246Sbrooks sep = ' '; 1203145246Sbrooks printf("%d%c", cmd->d[i], sep); 1204145246Sbrooks } 1205145246Sbrooks} 1206145246Sbrooks 1207145246Sbrooks/* structure and define for the extension header in ipv6 */ 1208145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1209145246Sbrooks { "frag", EXT_FRAGMENT }, 1210145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1211145246Sbrooks { "route", EXT_ROUTING }, 1212149020Sbz { "dstopt", EXT_DSTOPTS }, 1213145246Sbrooks { "ah", EXT_AH }, 1214145246Sbrooks { "esp", EXT_ESP }, 1215145246Sbrooks { NULL, 0 } 1216145246Sbrooks}; 1217145246Sbrooks 1218145246Sbrooks/* fills command for the extension header filtering */ 1219145246Sbrooksint 1220145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1221145246Sbrooks{ 1222145246Sbrooks int tok; 1223145246Sbrooks char *s = av; 1224145246Sbrooks 1225145246Sbrooks cmd->arg1 = 0; 1226145246Sbrooks 1227145246Sbrooks while(s) { 1228145246Sbrooks av = strsep( &s, ",") ; 1229145246Sbrooks tok = match_token(ext6hdrcodes, av); 1230145246Sbrooks switch (tok) { 1231145246Sbrooks case EXT_FRAGMENT: 1232145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1233145246Sbrooks break; 1234145246Sbrooks 1235145246Sbrooks case EXT_HOPOPTS: 1236145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1237145246Sbrooks break; 1238145246Sbrooks 1239145246Sbrooks case EXT_ROUTING: 1240145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1241145246Sbrooks break; 1242145246Sbrooks 1243149020Sbz case EXT_DSTOPTS: 1244149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1245149020Sbz break; 1246149020Sbz 1247145246Sbrooks case EXT_AH: 1248145246Sbrooks cmd->arg1 |= EXT_AH; 1249145246Sbrooks break; 1250145246Sbrooks 1251145246Sbrooks case EXT_ESP: 1252145246Sbrooks cmd->arg1 |= EXT_ESP; 1253145246Sbrooks break; 1254145246Sbrooks 1255145246Sbrooks default: 1256145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1257145246Sbrooks break; 1258145246Sbrooks } 1259145246Sbrooks } 1260145246Sbrooks if (cmd->arg1 == 0 ) 1261145246Sbrooks return 0; 1262145246Sbrooks cmd->opcode = O_EXT_HDR; 1263145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1264145246Sbrooks return 1; 1265145246Sbrooks} 1266145246Sbrooks 1267145246Sbrooksvoid 1268145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1269145246Sbrooks{ 1270145246Sbrooks char sep = ' '; 1271145246Sbrooks 1272145246Sbrooks printf(" extension header:"); 1273145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1274145246Sbrooks printf("%cfragmentation", sep); 1275145246Sbrooks sep = ','; 1276145246Sbrooks } 1277145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1278145246Sbrooks printf("%chop options", sep); 1279145246Sbrooks sep = ','; 1280145246Sbrooks } 1281145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1282145246Sbrooks printf("%crouting options", sep); 1283145246Sbrooks sep = ','; 1284145246Sbrooks } 1285149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1286149020Sbz printf("%cdestination options", sep); 1287149020Sbz sep = ','; 1288149020Sbz } 1289145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1290145246Sbrooks printf("%cauthentication header", sep); 1291145246Sbrooks sep = ','; 1292145246Sbrooks } 1293145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1294145246Sbrooks printf("%cencapsulated security payload", sep); 1295145246Sbrooks } 1296145246Sbrooks} 1297145246Sbrooks 129898943Sluigi/* 129998943Sluigi * show_ipfw() prints the body of an ipfw rule. 130098943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 130198943Sluigi * a helper function to produce these entries if not provided explicitly. 1302102087Sluigi * The first argument is the list of fields we have, the second is 1303102087Sluigi * the list of fields we want to be printed. 1304101978Sluigi * 1305102087Sluigi * Special cases if we have provided a MAC header: 1306102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1307102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1308102087Sluigi * 1309102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 131098943Sluigi */ 1311101978Sluigi#define HAVE_PROTO 0x0001 1312101978Sluigi#define HAVE_SRCIP 0x0002 1313101978Sluigi#define HAVE_DSTIP 0x0004 1314101978Sluigi#define HAVE_MAC 0x0008 1315101978Sluigi#define HAVE_MACTYPE 0x0010 1316146894Smlaier#define HAVE_PROTO4 0x0040 1317145246Sbrooks#define HAVE_PROTO6 0x0080 1318102087Sluigi#define HAVE_OPTIONS 0x8000 131998943Sluigi 1320101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 132198943Sluigistatic void 1322102087Sluigishow_prerequisites(int *flags, int want, int cmd) 132398943Sluigi{ 1324123495Sluigi if (comment_only) 1325123495Sluigi return; 1326102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1327102087Sluigi *flags |= HAVE_OPTIONS; 1328102087Sluigi 1329102087Sluigi if ( (*flags & (HAVE_MAC|HAVE_MACTYPE|HAVE_OPTIONS)) == HAVE_MAC && 1330102087Sluigi cmd != O_MAC_TYPE) { 1331102087Sluigi /* 1332102087Sluigi * mac-type was optimized out by the compiler, 1333102087Sluigi * restore it 1334102087Sluigi */ 1335102087Sluigi printf(" any"); 1336102087Sluigi *flags |= HAVE_MACTYPE | HAVE_OPTIONS; 1337102087Sluigi return; 1338101978Sluigi } 1339102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1340102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1341146894Smlaier if ( (*flags & HAVE_PROTO4)) 1342146894Smlaier printf(" ip4"); 1343146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1344146894Smlaier printf(" ip6"); 1345146894Smlaier else 1346146894Smlaier printf(" ip"); 1347146894Smlaier 1348102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1349102087Sluigi printf(" from any"); 1350102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1351102087Sluigi printf(" to any"); 1352102087Sluigi } 135398943Sluigi *flags |= want; 135498943Sluigi} 135598943Sluigi 135698943Sluigistatic void 1357112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 135898943Sluigi{ 1359107291Skeramida static int twidth = 0; 136098943Sluigi int l; 136198943Sluigi ipfw_insn *cmd; 1362117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 136398943Sluigi int proto = 0; /* default */ 136498943Sluigi int flags = 0; /* prerequisites */ 136598943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1366136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 136798943Sluigi int or_block = 0; /* we are in an or block */ 1368117328Sluigi uint32_t set_disable; 136998943Sluigi 1370115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1371101628Sluigi 1372101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1373101628Sluigi if (!show_sets) 1374101628Sluigi return; 1375101628Sluigi else 1376101628Sluigi printf("# DISABLED "); 1377101628Sluigi } 137898943Sluigi printf("%05u ", rule->rulenum); 137998943Sluigi 1380117469Sluigi if (pcwidth>0 || bcwidth>0) 1381115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1382115793Sticso bcwidth, align_uint64(&rule->bcnt)); 138398943Sluigi 1384117472Sluigi if (do_time == 2) 1385117472Sluigi printf("%10u ", rule->timestamp); 1386117472Sluigi else if (do_time == 1) { 1387107291Skeramida char timestr[30]; 1388107291Skeramida time_t t = (time_t)0; 1389107291Skeramida 1390107291Skeramida if (twidth == 0) { 1391107291Skeramida strcpy(timestr, ctime(&t)); 1392107291Skeramida *strchr(timestr, '\n') = '\0'; 1393107291Skeramida twidth = strlen(timestr); 1394107291Skeramida } 139598943Sluigi if (rule->timestamp) { 1396107291Skeramida t = _long_to_time(rule->timestamp); 139798943Sluigi 139898943Sluigi strcpy(timestr, ctime(&t)); 139998943Sluigi *strchr(timestr, '\n') = '\0'; 140098943Sluigi printf("%s ", timestr); 140198943Sluigi } else { 1402107291Skeramida printf("%*s", twidth, " "); 140398943Sluigi } 140498943Sluigi } 140598943Sluigi 1406101628Sluigi if (show_sets) 1407101628Sluigi printf("set %d ", rule->set); 1408101628Sluigi 140998943Sluigi /* 1410107289Sluigi * print the optional "match probability" 1411107289Sluigi */ 1412107289Sluigi if (rule->cmd_len > 0) { 1413107289Sluigi cmd = rule->cmd ; 1414107289Sluigi if (cmd->opcode == O_PROB) { 1415107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1416107289Sluigi double d = 1.0 * p->d[0]; 1417107289Sluigi 1418107289Sluigi d = (d / 0x7fffffff); 1419107289Sluigi printf("prob %f ", d); 1420107289Sluigi } 1421107289Sluigi } 1422107289Sluigi 1423107289Sluigi /* 142498943Sluigi * first print actions 142598943Sluigi */ 142698943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 142798943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 142898943Sluigi switch(cmd->opcode) { 142998943Sluigi case O_CHECK_STATE: 143098943Sluigi printf("check-state"); 1431102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 143298943Sluigi break; 143398943Sluigi 143498943Sluigi case O_ACCEPT: 143598943Sluigi printf("allow"); 143698943Sluigi break; 143798943Sluigi 143898943Sluigi case O_COUNT: 143998943Sluigi printf("count"); 144098943Sluigi break; 144198943Sluigi 144298943Sluigi case O_DENY: 144398943Sluigi printf("deny"); 144498943Sluigi break; 144598943Sluigi 144699475Sluigi case O_REJECT: 144799475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 144899475Sluigi printf("reset"); 144999475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 145099475Sluigi printf("reject"); 145199475Sluigi else 145299475Sluigi print_reject_code(cmd->arg1); 145399475Sluigi break; 145499475Sluigi 1455149020Sbz case O_UNREACH6: 1456149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1457149020Sbz printf("reset6"); 1458149020Sbz else 1459149020Sbz print_unreach6_code(cmd->arg1); 1460149020Sbz break; 1461149020Sbz 1462153374Sglebius#define PRINT_WITH_ARG(o) \ 1463153374Sglebius if (cmd->arg1 == IP_FW_TABLEARG) \ 1464153374Sglebius printf("%s tablearg", (o)); \ 1465153374Sglebius else \ 1466153374Sglebius printf("%s %u", (o), cmd->arg1); \ 146798943Sluigi break; 146898943Sluigi 1469153374Sglebius case O_SKIPTO: 1470153374Sglebius PRINT_WITH_ARG("skipto"); 147198943Sluigi case O_PIPE: 1472153374Sglebius PRINT_WITH_ARG("pipe"); 147398943Sluigi case O_QUEUE: 1474153374Sglebius PRINT_WITH_ARG("queue"); 147598943Sluigi case O_DIVERT: 1476153374Sglebius PRINT_WITH_ARG("divert"); 147798943Sluigi case O_TEE: 1478153374Sglebius PRINT_WITH_ARG("tee"); 1479141351Sglebius case O_NETGRAPH: 1480153374Sglebius PRINT_WITH_ARG("netgraph"); 1481141351Sglebius case O_NGTEE: 1482153374Sglebius PRINT_WITH_ARG("ngtee"); 1483153374Sglebius#undef PRINT_WITH_ARG 1484141351Sglebius 148598943Sluigi case O_FORWARD_IP: 148698943Sluigi { 148798943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 148898943Sluigi 148998943Sluigi printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 149098943Sluigi if (s->sa.sin_port) 1491103241Sluigi printf(",%d", s->sa.sin_port); 149298943Sluigi } 149398943Sluigi break; 149498943Sluigi 149598943Sluigi case O_LOG: /* O_LOG is printed last */ 149698943Sluigi logptr = (ipfw_insn_log *)cmd; 149798943Sluigi break; 149898943Sluigi 1499136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1500136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1501136071Sgreen break; 1502136071Sgreen 150398943Sluigi default: 1504136071Sgreen printf("** unrecognized action %d len %d ", 150598943Sluigi cmd->opcode, cmd->len); 150698943Sluigi } 150798943Sluigi } 150898943Sluigi if (logptr) { 150998943Sluigi if (logptr->max_log > 0) 151099909Sluigi printf(" log logamount %d", logptr->max_log); 151198943Sluigi else 151299909Sluigi printf(" log"); 151398943Sluigi } 1514136071Sgreen if (altqptr) { 1515136071Sgreen const char *qname; 1516102087Sluigi 1517136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1518136071Sgreen if (qname == NULL) 1519136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1520136071Sgreen else 1521136071Sgreen printf(" altq %s", qname); 1522136071Sgreen } 1523136071Sgreen 152498943Sluigi /* 1525102087Sluigi * then print the body. 152698943Sluigi */ 1527146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1528146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1529146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1530146894Smlaier continue; 1531146894Smlaier if (cmd->opcode == O_IP4) { 1532146894Smlaier flags |= HAVE_PROTO4; 1533146894Smlaier break; 1534146894Smlaier } else if (cmd->opcode == O_IP6) { 1535146894Smlaier flags |= HAVE_PROTO6; 1536146894Smlaier break; 1537146894Smlaier } 1538146894Smlaier } 1539102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1540146894Smlaier if (!do_compact) { 1541146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1542146894Smlaier printf(" from any to any"); 1543146894Smlaier } 1544102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1545102087Sluigi } 1546102087Sluigi 1547123495Sluigi if (comment_only) 1548123495Sluigi comment = "..."; 1549123495Sluigi 155098943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 155198943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 155299475Sluigi /* useful alias */ 155399475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 155498943Sluigi 1555123495Sluigi if (comment_only) { 1556123495Sluigi if (cmd->opcode != O_NOP) 1557123495Sluigi continue; 1558123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1559123495Sluigi return; 1560123495Sluigi } 1561123495Sluigi 1562102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1563102087Sluigi 156498943Sluigi switch(cmd->opcode) { 1565117577Sluigi case O_PROB: 1566107289Sluigi break; /* done already */ 1567107289Sluigi 156898943Sluigi case O_PROBE_STATE: 156998943Sluigi break; /* no need to print anything here */ 157098943Sluigi 157198943Sluigi case O_MACADDR2: { 157298943Sluigi ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1573102087Sluigi 1574102087Sluigi if ((cmd->len & F_OR) && !or_block) 1575102087Sluigi printf(" {"); 157698943Sluigi if (cmd->len & F_NOT) 157798943Sluigi printf(" not"); 1578102087Sluigi printf(" MAC"); 1579102087Sluigi flags |= HAVE_MAC; 1580117577Sluigi print_mac(m->addr, m->mask); 1581117577Sluigi print_mac(m->addr + 6, m->mask + 6); 158298943Sluigi } 158398943Sluigi break; 158498943Sluigi 158598943Sluigi case O_MAC_TYPE: 1586102087Sluigi if ((cmd->len & F_OR) && !or_block) 1587102087Sluigi printf(" {"); 1588102087Sluigi print_newports((ipfw_insn_u16 *)cmd, IPPROTO_ETHERTYPE, 1589102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 1590102087Sluigi flags |= HAVE_MAC | HAVE_MACTYPE | HAVE_OPTIONS; 159198943Sluigi break; 159298943Sluigi 159398943Sluigi case O_IP_SRC: 1594130281Sru case O_IP_SRC_LOOKUP: 159598943Sluigi case O_IP_SRC_MASK: 159698943Sluigi case O_IP_SRC_ME: 159798943Sluigi case O_IP_SRC_SET: 1598102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 159998943Sluigi if (!(flags & HAVE_SRCIP)) 160098943Sluigi printf(" from"); 160198943Sluigi if ((cmd->len & F_OR) && !or_block) 160298943Sluigi printf(" {"); 1603102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1604102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 160598943Sluigi flags |= HAVE_SRCIP; 160698943Sluigi break; 160798943Sluigi 160898943Sluigi case O_IP_DST: 1609130281Sru case O_IP_DST_LOOKUP: 161098943Sluigi case O_IP_DST_MASK: 161198943Sluigi case O_IP_DST_ME: 161298943Sluigi case O_IP_DST_SET: 1613102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 161498943Sluigi if (!(flags & HAVE_DSTIP)) 161598943Sluigi printf(" to"); 161698943Sluigi if ((cmd->len & F_OR) && !or_block) 161798943Sluigi printf(" {"); 1618102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1619102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 162098943Sluigi flags |= HAVE_DSTIP; 162198943Sluigi break; 162298943Sluigi 1623145246Sbrooks case O_IP6_SRC: 1624145246Sbrooks case O_IP6_SRC_MASK: 1625145246Sbrooks case O_IP6_SRC_ME: 1626147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1627145246Sbrooks if (!(flags & HAVE_SRCIP)) 1628145246Sbrooks printf(" from"); 1629145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1630145246Sbrooks printf(" {"); 1631145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1632145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1633145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1634145246Sbrooks break; 1635145246Sbrooks 1636145246Sbrooks case O_IP6_DST: 1637145246Sbrooks case O_IP6_DST_MASK: 1638145246Sbrooks case O_IP6_DST_ME: 1639145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1640145246Sbrooks if (!(flags & HAVE_DSTIP)) 1641145246Sbrooks printf(" to"); 1642145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1643145246Sbrooks printf(" {"); 1644145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1645145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1646145246Sbrooks flags |= HAVE_DSTIP; 1647145246Sbrooks break; 1648145246Sbrooks 1649145246Sbrooks case O_FLOW6ID: 1650145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1651145246Sbrooks flags |= HAVE_OPTIONS; 1652145246Sbrooks break; 1653145246Sbrooks 165498943Sluigi case O_IP_DSTPORT: 1655102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 165698943Sluigi case O_IP_SRCPORT: 1657102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1658101641Sluigi if ((cmd->len & F_OR) && !or_block) 1659101641Sluigi printf(" {"); 1660102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1661102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 166298943Sluigi break; 166398943Sluigi 166498943Sluigi case O_PROTO: { 1665145246Sbrooks struct protoent *pe = NULL; 166698943Sluigi 166798943Sluigi if ((cmd->len & F_OR) && !or_block) 166898943Sluigi printf(" {"); 166998943Sluigi if (cmd->len & F_NOT) 167098943Sluigi printf(" not"); 167198943Sluigi proto = cmd->arg1; 1672145567Sbrooks pe = getprotobynumber(cmd->arg1); 1673146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1674146894Smlaier !(flags & HAVE_PROTO)) 1675146894Smlaier show_prerequisites(&flags, 1676146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1677102087Sluigi if (flags & HAVE_OPTIONS) 1678102087Sluigi printf(" proto"); 167998943Sluigi if (pe) 168098943Sluigi printf(" %s", pe->p_name); 168198943Sluigi else 168298943Sluigi printf(" %u", cmd->arg1); 168398943Sluigi } 168498943Sluigi flags |= HAVE_PROTO; 168598943Sluigi break; 1686106505Smaxim 168798943Sluigi default: /*options ... */ 1688146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1689146894Smlaier if (((cmd->opcode == O_IP6) && 1690146894Smlaier (flags & HAVE_PROTO6)) || 1691146894Smlaier ((cmd->opcode == O_IP4) && 1692146894Smlaier (flags & HAVE_PROTO4))) 1693146894Smlaier break; 1694102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 169598943Sluigi if ((cmd->len & F_OR) && !or_block) 169698943Sluigi printf(" {"); 169798943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 169898943Sluigi printf(" not"); 169998943Sluigi switch(cmd->opcode) { 170098943Sluigi case O_FRAG: 170198943Sluigi printf(" frag"); 170298943Sluigi break; 170398943Sluigi 170498943Sluigi case O_IN: 170598943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 170698943Sluigi break; 170798943Sluigi 1708136073Sgreen case O_DIVERTED: 1709136073Sgreen switch (cmd->arg1) { 1710136073Sgreen case 3: 1711136073Sgreen printf(" diverted"); 1712136073Sgreen break; 1713136073Sgreen case 1: 1714136073Sgreen printf(" diverted-loopback"); 1715136073Sgreen break; 1716136073Sgreen case 2: 1717136073Sgreen printf(" diverted-output"); 1718136073Sgreen break; 1719136073Sgreen default: 1720136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1721136073Sgreen break; 1722136073Sgreen } 1723136073Sgreen break; 1724136073Sgreen 172598943Sluigi case O_LAYER2: 172698943Sluigi printf(" layer2"); 172798943Sluigi break; 172898943Sluigi case O_XMIT: 172998943Sluigi case O_RECV: 1730140423Sglebius case O_VIA: 1731140423Sglebius { 1732117469Sluigi char const *s; 173398943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 173498943Sluigi 173598943Sluigi if (cmd->opcode == O_XMIT) 173698943Sluigi s = "xmit"; 173798943Sluigi else if (cmd->opcode == O_RECV) 173898943Sluigi s = "recv"; 1739117469Sluigi else /* if (cmd->opcode == O_VIA) */ 174098943Sluigi s = "via"; 174198943Sluigi if (cmdif->name[0] == '\0') 174299475Sluigi printf(" %s %s", s, 174399475Sluigi inet_ntoa(cmdif->p.ip)); 1744140423Sglebius else 1745140423Sglebius printf(" %s %s", s, cmdif->name); 1746140423Sglebius 174798943Sluigi break; 1748140423Sglebius } 174998943Sluigi case O_IPID: 1750116690Sluigi if (F_LEN(cmd) == 1) 1751116690Sluigi printf(" ipid %u", cmd->arg1 ); 1752116690Sluigi else 1753116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1754116690Sluigi O_IPID); 175598943Sluigi break; 175698943Sluigi 175798943Sluigi case O_IPTTL: 1758116690Sluigi if (F_LEN(cmd) == 1) 1759116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1760116690Sluigi else 1761116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1762116690Sluigi O_IPTTL); 176398943Sluigi break; 176498943Sluigi 176598943Sluigi case O_IPVER: 176698943Sluigi printf(" ipver %u", cmd->arg1 ); 176798943Sluigi break; 176898943Sluigi 176999475Sluigi case O_IPPRECEDENCE: 177099475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 177199475Sluigi break; 177299475Sluigi 177398943Sluigi case O_IPLEN: 1774116690Sluigi if (F_LEN(cmd) == 1) 1775116690Sluigi printf(" iplen %u", cmd->arg1 ); 1776116690Sluigi else 1777116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1778116690Sluigi O_IPLEN); 177998943Sluigi break; 178098943Sluigi 1781101116Sluigi case O_IPOPT: 178298943Sluigi print_flags("ipoptions", cmd, f_ipopts); 178398943Sluigi break; 178498943Sluigi 178599475Sluigi case O_IPTOS: 178699475Sluigi print_flags("iptos", cmd, f_iptos); 178799475Sluigi break; 178899475Sluigi 178999475Sluigi case O_ICMPTYPE: 179099475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 179199475Sluigi break; 179299475Sluigi 179398943Sluigi case O_ESTAB: 179498943Sluigi printf(" established"); 179598943Sluigi break; 179698943Sluigi 1797136075Sgreen case O_TCPDATALEN: 1798136075Sgreen if (F_LEN(cmd) == 1) 1799136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1800136075Sgreen else 1801136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1802136075Sgreen O_TCPDATALEN); 1803136075Sgreen break; 1804136075Sgreen 180598943Sluigi case O_TCPFLAGS: 180698943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 180798943Sluigi break; 180898943Sluigi 180998943Sluigi case O_TCPOPTS: 181098943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 181198943Sluigi break; 181298943Sluigi 181398943Sluigi case O_TCPWIN: 181498943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 181598943Sluigi break; 181698943Sluigi 181798943Sluigi case O_TCPACK: 181898943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 181998943Sluigi break; 182098943Sluigi 182198943Sluigi case O_TCPSEQ: 182298943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 182398943Sluigi break; 182498943Sluigi 182598943Sluigi case O_UID: 182698943Sluigi { 182798943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 182898943Sluigi 182998943Sluigi if (pwd) 183098943Sluigi printf(" uid %s", pwd->pw_name); 183198943Sluigi else 183298943Sluigi printf(" uid %u", cmd32->d[0]); 183398943Sluigi } 183498943Sluigi break; 183598943Sluigi 183698943Sluigi case O_GID: 183798943Sluigi { 183898943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 183998943Sluigi 184098943Sluigi if (grp) 184198943Sluigi printf(" gid %s", grp->gr_name); 184298943Sluigi else 184398943Sluigi printf(" gid %u", cmd32->d[0]); 184498943Sluigi } 184598943Sluigi break; 184698943Sluigi 1847133600Scsjp case O_JAIL: 1848133600Scsjp printf(" jail %d", cmd32->d[0]); 1849133600Scsjp break; 1850133600Scsjp 1851112250Scjc case O_VERREVPATH: 1852112250Scjc printf(" verrevpath"); 1853112250Scjc break; 1854116919Sluigi 1855128575Sandre case O_VERSRCREACH: 1856128575Sandre printf(" versrcreach"); 1857128575Sandre break; 1858128575Sandre 1859133387Sandre case O_ANTISPOOF: 1860133387Sandre printf(" antispoof"); 1861133387Sandre break; 1862133387Sandre 1863117241Sluigi case O_IPSEC: 1864117241Sluigi printf(" ipsec"); 1865117241Sluigi break; 1866117241Sluigi 1867117469Sluigi case O_NOP: 1868117626Sluigi comment = (char *)(cmd + 1); 1869117469Sluigi break; 1870117469Sluigi 187198943Sluigi case O_KEEP_STATE: 187298943Sluigi printf(" keep-state"); 187398943Sluigi break; 187498943Sluigi 187598943Sluigi case O_LIMIT: 187698943Sluigi { 187798943Sluigi struct _s_x *p = limit_masks; 187898943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1879117328Sluigi uint8_t x = c->limit_mask; 1880117469Sluigi char const *comma = " "; 188198943Sluigi 188298943Sluigi printf(" limit"); 1883117577Sluigi for (; p->x != 0 ; p++) 188499909Sluigi if ((x & p->x) == p->x) { 188598943Sluigi x &= ~p->x; 188698943Sluigi printf("%s%s", comma, p->s); 188798943Sluigi comma = ","; 188898943Sluigi } 188998943Sluigi printf(" %d", c->conn_limit); 189098943Sluigi } 189198943Sluigi break; 189298943Sluigi 1893146894Smlaier case O_IP6: 1894152923Sume printf(" ip6"); 1895145246Sbrooks break; 1896145246Sbrooks 1897146894Smlaier case O_IP4: 1898152923Sume printf(" ip4"); 1899146894Smlaier break; 1900146894Smlaier 1901145246Sbrooks case O_ICMP6TYPE: 1902145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 1903145246Sbrooks break; 1904145246Sbrooks 1905145246Sbrooks case O_EXT_HDR: 1906145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 1907145246Sbrooks break; 1908145246Sbrooks 190998943Sluigi default: 191098943Sluigi printf(" [opcode %d len %d]", 191198943Sluigi cmd->opcode, cmd->len); 191298943Sluigi } 191398943Sluigi } 191498943Sluigi if (cmd->len & F_OR) { 191598943Sluigi printf(" or"); 191698943Sluigi or_block = 1; 191798943Sluigi } else if (or_block) { 191898943Sluigi printf(" }"); 191998943Sluigi or_block = 0; 192098943Sluigi } 192198943Sluigi } 1922102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 1923117626Sluigi if (comment) 1924117626Sluigi printf(" // %s", comment); 192598943Sluigi printf("\n"); 192698943Sluigi} 192798943Sluigi 192898943Sluigistatic void 1929112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 193098943Sluigi{ 193198943Sluigi struct protoent *pe; 193298943Sluigi struct in_addr a; 1933115793Sticso uint16_t rulenum; 193498943Sluigi 193598943Sluigi if (!do_expired) { 193698943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 193798943Sluigi return; 193898943Sluigi } 1939115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1940117328Sluigi printf("%05d", rulenum); 1941117469Sluigi if (pcwidth>0 || bcwidth>0) 1942117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 1943117328Sluigi align_uint64(&d->pcnt), bcwidth, 1944117328Sluigi align_uint64(&d->bcnt), d->expire); 194598943Sluigi switch (d->dyn_type) { 194698943Sluigi case O_LIMIT_PARENT: 194798943Sluigi printf(" PARENT %d", d->count); 194898943Sluigi break; 194998943Sluigi case O_LIMIT: 195098943Sluigi printf(" LIMIT"); 195198943Sluigi break; 195298943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1953106505Smaxim printf(" STATE"); 195498943Sluigi break; 195598943Sluigi } 195698943Sluigi 195798943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 195898943Sluigi printf(" %s", pe->p_name); 195998943Sluigi else 196098943Sluigi printf(" proto %u", d->id.proto); 196198943Sluigi 196298943Sluigi a.s_addr = htonl(d->id.src_ip); 196398943Sluigi printf(" %s %d", inet_ntoa(a), d->id.src_port); 196498943Sluigi 196598943Sluigi a.s_addr = htonl(d->id.dst_ip); 196698943Sluigi printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 196798943Sluigi printf("\n"); 196898943Sluigi} 196998943Sluigi 1970117469Sluigistatic int 197198943Sluigisort_q(const void *pa, const void *pb) 197298943Sluigi{ 197398943Sluigi int rev = (do_sort < 0); 197498943Sluigi int field = rev ? -do_sort : do_sort; 197598943Sluigi long long res = 0; 197698943Sluigi const struct dn_flow_queue *a = pa; 197798943Sluigi const struct dn_flow_queue *b = pb; 197898943Sluigi 197998943Sluigi switch (field) { 198098943Sluigi case 1: /* pkts */ 198198943Sluigi res = a->len - b->len; 198298943Sluigi break; 198398943Sluigi case 2: /* bytes */ 198498943Sluigi res = a->len_bytes - b->len_bytes; 198598943Sluigi break; 198698943Sluigi 198798943Sluigi case 3: /* tot pkts */ 198898943Sluigi res = a->tot_pkts - b->tot_pkts; 198998943Sluigi break; 199098943Sluigi 199198943Sluigi case 4: /* tot bytes */ 199298943Sluigi res = a->tot_bytes - b->tot_bytes; 199398943Sluigi break; 199498943Sluigi } 199598943Sluigi if (res < 0) 199698943Sluigi res = -1; 199798943Sluigi if (res > 0) 199898943Sluigi res = 1; 199998943Sluigi return (int)(rev ? res : -res); 200098943Sluigi} 200198943Sluigi 200298943Sluigistatic void 200398943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 200498943Sluigi{ 200598943Sluigi int l; 2006145246Sbrooks int index_printed, indexes = 0; 2007145246Sbrooks char buff[255]; 2008145246Sbrooks struct protoent *pe; 200998943Sluigi 201098943Sluigi if (fs->rq_elements == 0) 201198943Sluigi return; 201298943Sluigi 201398943Sluigi if (do_sort != 0) 201498943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2015145246Sbrooks 2016145246Sbrooks /* Print IPv4 flows */ 2017145246Sbrooks index_printed = 0; 201898943Sluigi for (l = 0; l < fs->rq_elements; l++) { 201998943Sluigi struct in_addr ina; 202098943Sluigi 2021145246Sbrooks /* XXX: Should check for IPv4 flows */ 2022145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2023145246Sbrooks continue; 2024145246Sbrooks 2025145246Sbrooks if (!index_printed) { 2026145246Sbrooks index_printed = 1; 2027145246Sbrooks if (indexes > 0) /* currently a no-op */ 2028145246Sbrooks printf("\n"); 2029145246Sbrooks indexes++; 2030145246Sbrooks printf(" " 2031145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2032145246Sbrooks fs->flow_mask.proto, 2033145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2034145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2035145246Sbrooks 2036145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2037145246Sbrooks "____Dest. IP/port____ " 2038145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2039145246Sbrooks } 2040145246Sbrooks 204198943Sluigi printf("%3d ", q[l].hash_slot); 204298943Sluigi pe = getprotobynumber(q[l].id.proto); 204398943Sluigi if (pe) 204498943Sluigi printf("%-4s ", pe->p_name); 204598943Sluigi else 204698943Sluigi printf("%4u ", q[l].id.proto); 2047145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 204898943Sluigi printf("%15s/%-5d ", 204998943Sluigi inet_ntoa(ina), q[l].id.src_port); 205098943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 205198943Sluigi printf("%15s/%-5d ", 205298943Sluigi inet_ntoa(ina), q[l].id.dst_port); 205398943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 205498943Sluigi q[l].tot_pkts, q[l].tot_bytes, 205598943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 205698943Sluigi if (verbose) 205798943Sluigi printf(" S %20qd F %20qd\n", 205898943Sluigi q[l].S, q[l].F); 205998943Sluigi } 2060145246Sbrooks 2061145246Sbrooks /* Print IPv6 flows */ 2062145246Sbrooks index_printed = 0; 2063145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2064145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2065145246Sbrooks continue; 2066145246Sbrooks 2067145246Sbrooks if (!index_printed) { 2068145246Sbrooks index_printed = 1; 2069145246Sbrooks if (indexes > 0) 2070145246Sbrooks printf("\n"); 2071145246Sbrooks indexes++; 2072145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2073145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2074145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2075145246Sbrooks buff, sizeof(buff)); 2076145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2077145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2078145246Sbrooks buff, sizeof(buff) ); 2079145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2080145246Sbrooks 2081145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2082145246Sbrooks "______________Source IPv6/port_______________ " 2083145246Sbrooks "_______________Dest. IPv6/port_______________ " 2084145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2085145246Sbrooks } 2086145246Sbrooks printf("%3d ", q[l].hash_slot); 2087145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2088145246Sbrooks if (pe != NULL) 2089145246Sbrooks printf("%9s ", pe->p_name); 2090145246Sbrooks else 2091145246Sbrooks printf("%9u ", q[l].id.proto); 2092145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2093145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2094145246Sbrooks q[l].id.src_port); 2095145246Sbrooks printf(" %39s/%-5d ", 2096145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2097145246Sbrooks q[l].id.dst_port); 2098145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2099145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2100145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2101145246Sbrooks if (verbose) 2102145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2103145246Sbrooks } 210498943Sluigi} 210598943Sluigi 210698943Sluigistatic void 210798943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 210898943Sluigi{ 210998943Sluigi int l; 211098943Sluigi char qs[30]; 211198943Sluigi char plr[30]; 211298943Sluigi char red[90]; /* Display RED parameters */ 211398943Sluigi 211498943Sluigi l = fs->qsize; 211598943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 211698943Sluigi if (l >= 8192) 211798943Sluigi sprintf(qs, "%d KB", l / 1024); 211898943Sluigi else 211998943Sluigi sprintf(qs, "%d B", l); 212098943Sluigi } else 212198943Sluigi sprintf(qs, "%3d sl.", l); 212298943Sluigi if (fs->plr) 212398943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 212498943Sluigi else 212598943Sluigi plr[0] = '\0'; 212698943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 212798943Sluigi sprintf(red, 212898943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 212998943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 213098943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 213198943Sluigi SCALE_VAL(fs->min_th), 213298943Sluigi SCALE_VAL(fs->max_th), 213398943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 213498943Sluigi else 213598943Sluigi sprintf(red, "droptail"); 213698943Sluigi 213798943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 213898943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 213998943Sluigi} 214098943Sluigi 214198943Sluigistatic void 2142117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 214398943Sluigi{ 2144117469Sluigi int rulenum; 214598943Sluigi void *next = data; 214698943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 214798943Sluigi struct dn_flow_set *fs; 214898943Sluigi struct dn_flow_queue *q; 214998943Sluigi int l; 215098943Sluigi 215198943Sluigi if (ac > 0) 215298943Sluigi rulenum = strtoul(*av++, NULL, 10); 215398943Sluigi else 215498943Sluigi rulenum = 0; 215598943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 215698943Sluigi double b = p->bandwidth; 215798943Sluigi char buf[30]; 215898943Sluigi char prefix[80]; 215998943Sluigi 2160152921Sglebius if (p->next.sle_next != (struct dn_pipe *)DN_IS_PIPE) 216198943Sluigi break; /* done with pipes, now queues */ 216298943Sluigi 216398943Sluigi /* 216498943Sluigi * compute length, as pipe have variable size 216598943Sluigi */ 216698943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2167117469Sluigi next = (char *)p + l; 216898943Sluigi nbytes -= l; 216998943Sluigi 2170134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 217198943Sluigi continue; 217298943Sluigi 217398943Sluigi /* 217498943Sluigi * Print rate (or clocking interface) 217598943Sluigi */ 217698943Sluigi if (p->if_name[0] != '\0') 217798943Sluigi sprintf(buf, "%s", p->if_name); 217898943Sluigi else if (b == 0) 217998943Sluigi sprintf(buf, "unlimited"); 218098943Sluigi else if (b >= 1000000) 218198943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 218298943Sluigi else if (b >= 1000) 218398943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 218498943Sluigi else 218598943Sluigi sprintf(buf, "%7.3f bit/s ", b); 218698943Sluigi 218798943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 218898943Sluigi p->pipe_nr, buf, p->delay); 218998943Sluigi print_flowset_parms(&(p->fs), prefix); 219098943Sluigi if (verbose) 219198943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2192106505Smaxim 219398943Sluigi q = (struct dn_flow_queue *)(p+1); 219498943Sluigi list_queues(&(p->fs), q); 219598943Sluigi } 219698943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 219798943Sluigi char prefix[80]; 219898943Sluigi 2199152921Sglebius if (fs->next.sle_next != (struct dn_flow_set *)DN_IS_QUEUE) 220098943Sluigi break; 220198943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2202117469Sluigi next = (char *)fs + l; 220398943Sluigi nbytes -= l; 2204134225Spjd 2205134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2206134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2207134225Spjd continue; 2208134225Spjd } 2209134225Spjd 221098943Sluigi q = (struct dn_flow_queue *)(fs+1); 221198943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 221298943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 221398943Sluigi print_flowset_parms(fs, prefix); 221498943Sluigi list_queues(fs, q); 221598943Sluigi } 221698943Sluigi} 221798943Sluigi 2218101978Sluigi/* 2219101978Sluigi * This one handles all set-related commands 2220101978Sluigi * ipfw set { show | enable | disable } 2221101978Sluigi * ipfw set swap X Y 2222101978Sluigi * ipfw set move X to Y 2223101978Sluigi * ipfw set move rule X to Y 2224101978Sluigi */ 222598943Sluigistatic void 2226101978Sluigisets_handler(int ac, char *av[]) 2227101978Sluigi{ 2228117328Sluigi uint32_t set_disable, masks[2]; 2229101978Sluigi int i, nbytes; 2230117328Sluigi uint16_t rulenum; 2231117328Sluigi uint8_t cmd, new_set; 2232101978Sluigi 2233101978Sluigi ac--; 2234101978Sluigi av++; 2235101978Sluigi 2236101978Sluigi if (!ac) 2237101978Sluigi errx(EX_USAGE, "set needs command"); 2238140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2239101978Sluigi void *data; 2240117469Sluigi char const *msg; 2241101978Sluigi 2242101978Sluigi nbytes = sizeof(struct ip_fw); 2243117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2244117328Sluigi err(EX_OSERR, "calloc"); 2245119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2246101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2247115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2248115793Sticso &set_disable, sizeof(set_disable)); 2249101978Sluigi 2250117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2251117577Sluigi if ((set_disable & (1<<i))) { 2252101978Sluigi printf("%s %d", msg, i); 2253101978Sluigi msg = ""; 2254101978Sluigi } 2255101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2256117655Sluigi for (i = 0; i < RESVD_SET; i++) 2257117577Sluigi if (!(set_disable & (1<<i))) { 2258101978Sluigi printf("%s %d", msg, i); 2259101978Sluigi msg = ""; 2260101978Sluigi } 2261101978Sluigi printf("\n"); 2262140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2263101978Sluigi ac--; av++; 2264101978Sluigi if (ac != 2) 2265101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2266101978Sluigi rulenum = atoi(av[0]); 2267101978Sluigi new_set = atoi(av[1]); 2268117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2269101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2270117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2271101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2272101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2273117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2274140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2275101978Sluigi ac--; av++; 2276140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2277101978Sluigi cmd = 2; 2278101978Sluigi ac--; av++; 2279101978Sluigi } else 2280101978Sluigi cmd = 3; 2281140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2282101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2283101978Sluigi rulenum = atoi(av[0]); 2284101978Sluigi new_set = atoi(av[2]); 2285117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2286101978Sluigi (cmd == 2 && rulenum == 65535) ) 2287101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2288117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2289101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2290101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2291117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2292140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2293140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2294140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2295101978Sluigi 2296101978Sluigi ac--; av++; 2297101978Sluigi masks[0] = masks[1] = 0; 2298101978Sluigi 2299101978Sluigi while (ac) { 2300101978Sluigi if (isdigit(**av)) { 2301101978Sluigi i = atoi(*av); 2302117655Sluigi if (i < 0 || i > RESVD_SET) 2303101978Sluigi errx(EX_DATAERR, 2304101978Sluigi "invalid set number %d\n", i); 2305101978Sluigi masks[which] |= (1<<i); 2306140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2307101978Sluigi which = 0; 2308140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2309101978Sluigi which = 1; 2310101978Sluigi else 2311101978Sluigi errx(EX_DATAERR, 2312101978Sluigi "invalid set command %s\n", *av); 2313101978Sluigi av++; ac--; 2314101978Sluigi } 2315101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2316101978Sluigi errx(EX_DATAERR, 2317101978Sluigi "cannot enable and disable the same set\n"); 2318101978Sluigi 2319117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2320101978Sluigi if (i) 2321101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2322101978Sluigi } else 2323101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2324101978Sluigi} 2325101978Sluigi 2326101978Sluigistatic void 2327109126Sdillonsysctl_handler(int ac, char *av[], int which) 2328109126Sdillon{ 2329109126Sdillon ac--; 2330109126Sdillon av++; 2331109126Sdillon 2332119668Smaxim if (ac == 0) { 2333109126Sdillon warnx("missing keyword to enable/disable\n"); 2334140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2335116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2336116770Sluigi &which, sizeof(which)); 2337140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2338116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2339116770Sluigi &which, sizeof(which)); 2340140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2341116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2342116770Sluigi &which, sizeof(which)); 2343140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2344116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2345116770Sluigi &which, sizeof(which)); 2346140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2347116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2348116770Sluigi &which, sizeof(which)); 2349140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2350136071Sgreen altq_set_enabled(which); 2351109126Sdillon } else { 2352109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2353109126Sdillon } 2354109126Sdillon} 2355109126Sdillon 2356109126Sdillonstatic void 2357117469Sluigilist(int ac, char *av[], int show_counters) 235898943Sluigi{ 235998943Sluigi struct ip_fw *r; 236098943Sluigi ipfw_dyn_rule *dynrules, *d; 236198943Sluigi 2362117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2363117469Sluigi char *lim; 2364117469Sluigi void *data = NULL; 2365112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 236698943Sluigi int exitval = EX_OK; 236798943Sluigi int lac; 236898943Sluigi char **lav; 2369117469Sluigi u_long rnum, last; 237098943Sluigi char *endptr; 237198943Sluigi int seen = 0; 237298943Sluigi 237398943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 237498943Sluigi int nalloc = 1024; /* start somewhere... */ 237598943Sluigi 2376135036Smaxim last = 0; 2377135036Smaxim 2378117328Sluigi if (test_only) { 2379117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2380117328Sluigi return; 2381117328Sluigi } 2382117328Sluigi 238398943Sluigi ac--; 238498943Sluigi av++; 238598943Sluigi 238698943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 238798943Sluigi nbytes = nalloc; 238898943Sluigi 238998943Sluigi while (nbytes >= nalloc) { 239098943Sluigi nalloc = nalloc * 2 + 200; 239198943Sluigi nbytes = nalloc; 239298943Sluigi if ((data = realloc(data, nbytes)) == NULL) 239398943Sluigi err(EX_OSERR, "realloc"); 2394119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 239598943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 239698943Sluigi do_pipe ? "DUMMYNET" : "FW"); 239798943Sluigi } 239898943Sluigi 239998943Sluigi if (do_pipe) { 240098943Sluigi list_pipes(data, nbytes, ac, av); 240198943Sluigi goto done; 240298943Sluigi } 240398943Sluigi 240498943Sluigi /* 240598943Sluigi * Count static rules. They have variable size so we 240698943Sluigi * need to scan the list to count them. 240798943Sluigi */ 2408117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2409117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2410117469Sluigi ++nstat, r = NEXT(r) ) 241198943Sluigi ; /* nothing */ 241298943Sluigi 241398943Sluigi /* 241498943Sluigi * Count dynamic rules. This is easier as they have 241598943Sluigi * fixed size. 241698943Sluigi */ 2417117469Sluigi r = NEXT(r); 241898943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2419117469Sluigi n = (char *)r - (char *)data; 242098943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 242198943Sluigi 2422112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2423112189Smaxim bcwidth = pcwidth = 0; 2424117469Sluigi if (show_counters) { 2425117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2426112189Smaxim /* packet counter */ 2427115793Sticso width = snprintf(NULL, 0, "%llu", 2428115793Sticso align_uint64(&r->pcnt)); 2429112189Smaxim if (width > pcwidth) 2430112189Smaxim pcwidth = width; 2431112189Smaxim 2432112189Smaxim /* byte counter */ 2433115793Sticso width = snprintf(NULL, 0, "%llu", 2434115793Sticso align_uint64(&r->bcnt)); 2435112189Smaxim if (width > bcwidth) 2436112189Smaxim bcwidth = width; 2437112189Smaxim } 2438112189Smaxim } 2439112189Smaxim if (do_dynamic && ndyn) { 2440112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2441115793Sticso width = snprintf(NULL, 0, "%llu", 2442115793Sticso align_uint64(&d->pcnt)); 2443112189Smaxim if (width > pcwidth) 2444112189Smaxim pcwidth = width; 2445112189Smaxim 2446115793Sticso width = snprintf(NULL, 0, "%llu", 2447115793Sticso align_uint64(&d->bcnt)); 2448112189Smaxim if (width > bcwidth) 2449112189Smaxim bcwidth = width; 2450112189Smaxim } 2451112189Smaxim } 245298943Sluigi /* if no rule numbers were specified, list all rules */ 245398943Sluigi if (ac == 0) { 2454117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 2455112189Smaxim show_ipfw(r, pcwidth, bcwidth); 245698943Sluigi 245798943Sluigi if (do_dynamic && ndyn) { 245898943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 245998943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 2460112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 246198943Sluigi } 246298943Sluigi goto done; 246398943Sluigi } 246498943Sluigi 246598943Sluigi /* display specific rules requested on command line */ 246698943Sluigi 246798943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 246898943Sluigi /* convert command line rule # */ 2469117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2470117469Sluigi if (*endptr == '-') 2471117469Sluigi last = strtoul(endptr+1, &endptr, 10); 247298943Sluigi if (*endptr) { 247398943Sluigi exitval = EX_USAGE; 247498943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 247598943Sluigi continue; 247698943Sluigi } 2477117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2478117469Sluigi if (r->rulenum > last) 247998943Sluigi break; 2480117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2481112189Smaxim show_ipfw(r, pcwidth, bcwidth); 248298943Sluigi seen = 1; 248398943Sluigi } 248498943Sluigi } 248598943Sluigi if (!seen) { 248698943Sluigi /* give precedence to other error(s) */ 248798943Sluigi if (exitval == EX_OK) 248898943Sluigi exitval = EX_UNAVAILABLE; 248998943Sluigi warnx("rule %lu does not exist", rnum); 249098943Sluigi } 249198943Sluigi } 249298943Sluigi 249398943Sluigi if (do_dynamic && ndyn) { 249498943Sluigi printf("## Dynamic rules:\n"); 249598943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2496145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2497117469Sluigi if (*endptr == '-') 2498117469Sluigi last = strtoul(endptr+1, &endptr, 10); 249998943Sluigi if (*endptr) 250098943Sluigi /* already warned */ 250198943Sluigi continue; 250298943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2503115793Sticso uint16_t rulenum; 2504115793Sticso 2505115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2506115793Sticso if (rulenum > rnum) 250798943Sluigi break; 2508117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2509112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 251098943Sluigi } 251198943Sluigi } 251298943Sluigi } 251398943Sluigi 251498943Sluigi ac = 0; 251598943Sluigi 251698943Sluigidone: 251798943Sluigi free(data); 251898943Sluigi 251998943Sluigi if (exitval != EX_OK) 252098943Sluigi exit(exitval); 2521117469Sluigi#undef NEXT 252298943Sluigi} 252398943Sluigi 252498943Sluigistatic void 252598943Sluigishow_usage(void) 252698943Sluigi{ 252798943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 252898943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 252998943Sluigi); 253098943Sluigi exit(EX_USAGE); 253198943Sluigi} 253298943Sluigi 253398943Sluigistatic void 253498943Sluigihelp(void) 253598943Sluigi{ 2536117328Sluigi fprintf(stderr, 2537117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2538123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2539117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2540117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2541117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2542117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2543130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 254498943Sluigi"\n" 2545136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2546149020Sbz"ACTION: check-state | allow | count | deny | unreach{,6} CODE |\n" 2547149020Sbz" skipto N | {divert|tee} PORT | forward ADDR |\n" 2548149020Sbz" pipe N | queue N\n" 2549136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 255098943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2551145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2552145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2553130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2554145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2555145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2556117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2557117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2558136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2559145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2560145246Sbrooks" {dst-port|src-port} LIST |\n" 2561117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2562117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2563117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2564145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2565117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2566117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2567136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 256898943Sluigi); 256998943Sluigiexit(0); 257098943Sluigi} 257198943Sluigi 257298943Sluigi 257398943Sluigistatic int 257498943Sluigilookup_host (char *host, struct in_addr *ipaddr) 257598943Sluigi{ 257698943Sluigi struct hostent *he; 257798943Sluigi 257898943Sluigi if (!inet_aton(host, ipaddr)) { 257998943Sluigi if ((he = gethostbyname(host)) == NULL) 258098943Sluigi return(-1); 258198943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 258298943Sluigi } 258398943Sluigi return(0); 258498943Sluigi} 258598943Sluigi 258698943Sluigi/* 258798943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 258898943Sluigi * Update length as appropriate. 258998943Sluigi * The following formats are allowed: 259098943Sluigi * me returns O_IP_*_ME 259198943Sluigi * 1.2.3.4 single IP address 259298943Sluigi * 1.2.3.4:5.6.7.8 address:mask 259398943Sluigi * 1.2.3.4/24 address/mask 259498943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2595117328Sluigi * We can have multiple comma-separated address/mask entries. 259698943Sluigi */ 259798943Sluigistatic void 259898943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 259998943Sluigi{ 2600117328Sluigi int len = 0; 2601117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 260298943Sluigi 260398943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 260498943Sluigi 2605140271Sbrooks if (_substrcmp(av, "any") == 0) 260698943Sluigi return; 260798943Sluigi 2608140271Sbrooks if (_substrcmp(av, "me") == 0) { 260998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 261098943Sluigi return; 261198943Sluigi } 261298943Sluigi 2613140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2614130281Sru char *p = strchr(av + 6, ','); 2615130281Sru 2616130281Sru if (p) 2617130281Sru *p++ = '\0'; 2618130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2619130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2620130281Sru if (p) { 2621130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2622130281Sru d[0] = strtoul(p, NULL, 0); 2623130281Sru } else 2624130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2625130281Sru return; 2626130281Sru } 2627130281Sru 2628117328Sluigi while (av) { 2629117328Sluigi /* 2630117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2631117328Sluigi * ',' indicating another address follows, '{' indicating a 2632117328Sluigi * set of addresses of unspecified size. 2633117328Sluigi */ 2634117328Sluigi char *p = strpbrk(av, "/:,{"); 2635117328Sluigi int masklen; 2636117328Sluigi char md; 2637117328Sluigi 263898943Sluigi if (p) { 263998943Sluigi md = *p; 264098943Sluigi *p++ = '\0'; 2641117328Sluigi } else 2642117328Sluigi md = '\0'; 264398943Sluigi 2644117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 264598943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 264698943Sluigi switch (md) { 264798943Sluigi case ':': 2648117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 264998943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 265098943Sluigi break; 265198943Sluigi case '/': 2652117328Sluigi masklen = atoi(p); 2653117328Sluigi if (masklen == 0) 2654117328Sluigi d[1] = htonl(0); /* mask */ 2655117328Sluigi else if (masklen > 32) 265698943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 265798943Sluigi else 2658117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 265998943Sluigi break; 2660117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2661117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2662117328Sluigi *(--p) = md; 2663117328Sluigi break; 2664117328Sluigi 2665117328Sluigi case ',': /* single address plus continuation */ 2666117328Sluigi *(--p) = md; 2667117328Sluigi /* FALLTHROUGH */ 2668117328Sluigi case 0: /* initialization value */ 266998943Sluigi default: 2670117328Sluigi d[1] = htonl(~0); /* force /32 */ 267198943Sluigi break; 267298943Sluigi } 2673117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2674117328Sluigi /* find next separator */ 267598943Sluigi if (p) 2676117328Sluigi p = strpbrk(p, ",{"); 2677117328Sluigi if (p && *p == '{') { 2678117328Sluigi /* 2679117328Sluigi * We have a set of addresses. They are stored as follows: 2680117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2681117328Sluigi * addr is the base address IN HOST FORMAT 2682117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2683117328Sluigi * the next multiple of 32) with bits set 2684117328Sluigi * for each host in the map. 2685117328Sluigi */ 2686117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 268798943Sluigi int low, high; 2688117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 268998943Sluigi 2690117328Sluigi if (len > 0) 2691117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2692117328Sluigi if (i < 24 || i > 31) 2693117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2694117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2695117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 269698943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 269798943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2698101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2699117328Sluigi map[i] = 0; /* clear map */ 270098943Sluigi 2701117328Sluigi av = p + 1; 2702117328Sluigi low = d[0] & 0xff; 270398943Sluigi high = low + cmd->o.arg1 - 1; 2704117328Sluigi /* 2705117328Sluigi * Here, i stores the previous value when we specify a range 2706117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2707117328Sluigi * have no previous value. 2708117328Sluigi */ 2709116716Sluigi i = -1; /* previous value in a range */ 271098943Sluigi while (isdigit(*av)) { 271198943Sluigi char *s; 2712117328Sluigi int a = strtol(av, &s, 0); 271398943Sluigi 2714117328Sluigi if (s == av) { /* no parameter */ 2715117328Sluigi if (*av != '}') 2716117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2717117328Sluigi if (i != -1) 2718117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2719117328Sluigi break; 2720117328Sluigi } 2721117328Sluigi if (a < low || a > high) 2722117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 272398943Sluigi a, low, high); 272498943Sluigi a -= low; 2725116716Sluigi if (i == -1) /* no previous in range */ 2726116716Sluigi i = a; 2727116716Sluigi else { /* check that range is valid */ 2728116716Sluigi if (i > a) 2729116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2730116716Sluigi i+low, a+low); 2731116716Sluigi if (*s == '-') 2732116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2733116716Sluigi } 2734116716Sluigi for (; i <= a; i++) 2735117328Sluigi map[i/32] |= 1<<(i & 31); 2736116716Sluigi i = -1; 2737116716Sluigi if (*s == '-') 2738116716Sluigi i = a; 2739117328Sluigi else if (*s == '}') 2740116716Sluigi break; 274198943Sluigi av = s+1; 274298943Sluigi } 274398943Sluigi return; 274498943Sluigi } 2745117328Sluigi av = p; 2746117328Sluigi if (av) /* then *av must be a ',' */ 2747117328Sluigi av++; 274898943Sluigi 2749117328Sluigi /* Check this entry */ 2750117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2751117328Sluigi /* 2752117328Sluigi * 'any' turns the entire list into a NOP. 2753117328Sluigi * 'not any' never matches, so it is removed from the 2754117328Sluigi * list unless it is the only item, in which case we 2755117328Sluigi * report an error. 2756117328Sluigi */ 2757117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2758117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2759117328Sluigi errx(EX_DATAERR, "not any never matches"); 2760117328Sluigi } 2761117328Sluigi /* else do nothing and skip this entry */ 2762128067Smaxim return; 2763117328Sluigi } 2764117328Sluigi /* A single IP can be stored in an optimized format */ 2765117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 276698943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2767117328Sluigi return; 2768117328Sluigi } 2769117328Sluigi len += 2; /* two words... */ 2770117328Sluigi d += 2; 2771117328Sluigi } /* end while */ 2772117328Sluigi cmd->o.len |= len+1; 277398943Sluigi} 277498943Sluigi 277598943Sluigi 2776145246Sbrooks/* Try to find ipv6 address by hostname */ 2777145246Sbrooksstatic int 2778145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2779145246Sbrooks{ 2780145246Sbrooks struct hostent *he; 2781145246Sbrooks 2782145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2783145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2784145246Sbrooks return(-1); 2785145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2786145246Sbrooks } 2787145246Sbrooks return(0); 2788145246Sbrooks} 2789145246Sbrooks 2790145246Sbrooks 2791145246Sbrooks/* n2mask sets n bits of the mask */ 2792145246Sbrooksstatic void 2793145246Sbrooksn2mask(struct in6_addr *mask, int n) 2794145246Sbrooks{ 2795145246Sbrooks static int minimask[9] = 2796145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2797145246Sbrooks u_char *p; 2798145246Sbrooks 2799145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2800145246Sbrooks p = (u_char *) mask; 2801145246Sbrooks for (; n > 0; p++, n -= 8) { 2802145246Sbrooks if (n >= 8) 2803145246Sbrooks *p = 0xff; 2804145246Sbrooks else 2805145246Sbrooks *p = minimask[n]; 2806145246Sbrooks } 2807145246Sbrooks return; 2808145246Sbrooks} 2809145246Sbrooks 2810145246Sbrooks 281198943Sluigi/* 2812145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2813145246Sbrooks * Update length as appropriate. 2814145246Sbrooks * The following formats are allowed: 2815145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2816145246Sbrooks * me returns O_IP6_*_ME 2817145246Sbrooks * 2818145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2819145246Sbrooks * 03f1::234:123:0342/24 address/mask 2820145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2821145246Sbrooks * 2822145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2823145246Sbrooks * are typically random past the initial prefix. 2824145246Sbrooks * Return 1 on success, 0 on failure. 2825145246Sbrooks */ 2826145246Sbrooksstatic int 2827145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2828145246Sbrooks{ 2829145246Sbrooks int len = 0; 2830145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2831145246Sbrooks /* 2832145246Sbrooks * Needed for multiple address. 2833145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2834145246Sbrooks */ 2835145246Sbrooks 2836145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2837145246Sbrooks 2838145246Sbrooks if (strcmp(av, "any") == 0) 2839145246Sbrooks return (1); 2840145246Sbrooks 2841145246Sbrooks 2842145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2843145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2844145246Sbrooks return (1); 2845145246Sbrooks } 2846145246Sbrooks 2847145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2848145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2849145246Sbrooks return (1); 2850145246Sbrooks } 2851145246Sbrooks 2852145246Sbrooks av = strdup(av); 2853145246Sbrooks while (av) { 2854145246Sbrooks /* 2855145246Sbrooks * After the address we can have '/' indicating a mask, 2856145246Sbrooks * or ',' indicating another address follows. 2857145246Sbrooks */ 2858145246Sbrooks 2859145246Sbrooks char *p; 2860145246Sbrooks int masklen; 2861145246Sbrooks char md = '\0'; 2862145246Sbrooks 2863145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 2864145246Sbrooks md = *p; /* save the separator */ 2865145246Sbrooks *p = '\0'; /* terminate address string */ 2866145246Sbrooks p++; /* and skip past it */ 2867145246Sbrooks } 2868145246Sbrooks /* now p points to NULL, mask or next entry */ 2869145246Sbrooks 2870145246Sbrooks /* lookup stores address in *d as a side effect */ 2871145246Sbrooks if (lookup_host6(av, d) != 0) { 2872145246Sbrooks /* XXX: failed. Free memory and go */ 2873145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 2874145246Sbrooks } 2875145246Sbrooks /* next, look at the mask, if any */ 2876145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 2877145246Sbrooks if (masklen > 128 || masklen < 0) 2878145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 2879145246Sbrooks else 2880145246Sbrooks n2mask(&d[1], masklen); 2881145246Sbrooks 2882145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 2883145246Sbrooks 2884145246Sbrooks /* find next separator */ 2885145246Sbrooks 2886145246Sbrooks if (md == '/') { /* find separator past the mask */ 2887145246Sbrooks p = strpbrk(p, ","); 2888145246Sbrooks if (p != NULL) 2889145246Sbrooks p++; 2890145246Sbrooks } 2891145246Sbrooks av = p; 2892145246Sbrooks 2893145246Sbrooks /* Check this entry */ 2894145246Sbrooks if (masklen == 0) { 2895145246Sbrooks /* 2896145246Sbrooks * 'any' turns the entire list into a NOP. 2897145246Sbrooks * 'not any' never matches, so it is removed from the 2898145246Sbrooks * list unless it is the only item, in which case we 2899145246Sbrooks * report an error. 2900145246Sbrooks */ 2901145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 2902145246Sbrooks errx(EX_DATAERR, "not any never matches"); 2903145246Sbrooks continue; 2904145246Sbrooks } 2905145246Sbrooks 2906145246Sbrooks /* 2907145246Sbrooks * A single IP can be stored alone 2908145246Sbrooks */ 2909145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 2910145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 2911145246Sbrooks break; 2912145246Sbrooks } 2913145246Sbrooks 2914145246Sbrooks /* Update length and pointer to arguments */ 2915145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 2916145246Sbrooks d += 2; 2917145246Sbrooks } /* end while */ 2918145246Sbrooks 2919145246Sbrooks /* 2920145246Sbrooks * Total length of the command, remember that 1 is the size of 2921145246Sbrooks * the base command. 2922145246Sbrooks */ 2923145246Sbrooks cmd->o.len |= len+1; 2924145246Sbrooks free(av); 2925145246Sbrooks return (1); 2926145246Sbrooks} 2927145246Sbrooks 2928145246Sbrooks/* 2929145246Sbrooks * fills command for ipv6 flow-id filtering 2930145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 2931145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 2932145246Sbrooks * additional flow-id we want to filter, the basic is 1 2933145246Sbrooks */ 2934145246Sbrooksvoid 2935145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 2936145246Sbrooks{ 2937145246Sbrooks u_int32_t type; /* Current flow number */ 2938145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 2939145246Sbrooks char *s = av; 2940145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 2941145246Sbrooks 2942145246Sbrooks while (s) { 2943145246Sbrooks av = strsep( &s, ",") ; 2944145246Sbrooks type = strtoul(av, &av, 0); 2945145246Sbrooks if (*av != ',' && *av != '\0') 2946145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2947145246Sbrooks if (type > 0xfffff) 2948145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 2949145246Sbrooks cmd->d[nflow] |= type; 2950145246Sbrooks nflow++; 2951145246Sbrooks } 2952145246Sbrooks if( nflow > 0 ) { 2953145246Sbrooks cmd->o.opcode = O_FLOW6ID; 2954145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 2955145246Sbrooks cmd->o.arg1 = nflow; 2956145246Sbrooks } 2957145246Sbrooks else { 2958145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2959145246Sbrooks } 2960145246Sbrooks} 2961145246Sbrooks 2962145246Sbrooksstatic ipfw_insn * 2963145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 2964145246Sbrooks{ 2965145246Sbrooks 2966145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2967145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2968145246Sbrooks ; 2969145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2970145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 2971145246Sbrooks } else if (F_LEN(cmd) == 2972145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2973145246Sbrooks /* single IP, no mask*/ 2974145246Sbrooks cmd->opcode = O_IP6_SRC; 2975145246Sbrooks } else { /* addr/mask opt */ 2976145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 2977145246Sbrooks } 2978145246Sbrooks return cmd; 2979145246Sbrooks} 2980145246Sbrooks 2981145246Sbrooksstatic ipfw_insn * 2982145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 2983145246Sbrooks{ 2984145246Sbrooks 2985145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2986145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2987145246Sbrooks ; 2988145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2989145246Sbrooks cmd->opcode = O_IP6_DST_ME; 2990145246Sbrooks } else if (F_LEN(cmd) == 2991145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2992145246Sbrooks /* single IP, no mask*/ 2993145246Sbrooks cmd->opcode = O_IP6_DST; 2994145246Sbrooks } else { /* addr/mask opt */ 2995145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 2996145246Sbrooks } 2997145246Sbrooks return cmd; 2998145246Sbrooks} 2999145246Sbrooks 3000145246Sbrooks 3001145246Sbrooks/* 300298943Sluigi * helper function to process a set of flags and set bits in the 300398943Sluigi * appropriate masks. 300498943Sluigi */ 300598943Sluigistatic void 300698943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 300798943Sluigi struct _s_x *flags, char *p) 300898943Sluigi{ 3009117328Sluigi uint8_t set=0, clear=0; 301098943Sluigi 301198943Sluigi while (p && *p) { 301298943Sluigi char *q; /* points to the separator */ 301398943Sluigi int val; 3014117328Sluigi uint8_t *which; /* mask we are working on */ 301598943Sluigi 301698943Sluigi if (*p == '!') { 301798943Sluigi p++; 301898943Sluigi which = &clear; 301998943Sluigi } else 302098943Sluigi which = &set; 302198943Sluigi q = strchr(p, ','); 302298943Sluigi if (q) 302398943Sluigi *q++ = '\0'; 302498943Sluigi val = match_token(flags, p); 302598943Sluigi if (val <= 0) 302698943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3027117328Sluigi *which |= (uint8_t)val; 302898943Sluigi p = q; 302998943Sluigi } 303098943Sluigi cmd->opcode = opcode; 303198943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 303298943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 303398943Sluigi} 303498943Sluigi 303598943Sluigi 303698943Sluigistatic void 303798943Sluigidelete(int ac, char *av[]) 303898943Sluigi{ 3039117328Sluigi uint32_t rulenum; 3040117469Sluigi struct dn_pipe p; 304198943Sluigi int i; 304298943Sluigi int exitval = EX_OK; 3043101628Sluigi int do_set = 0; 304498943Sluigi 3045117469Sluigi memset(&p, 0, sizeof p); 304698943Sluigi 304798943Sluigi av++; ac--; 3048130013Scsjp NEED1("missing rule specification"); 3049140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3050101978Sluigi do_set = 1; /* delete set */ 3051101628Sluigi ac--; av++; 3052101978Sluigi } 305398943Sluigi 305498943Sluigi /* Rule number */ 305598943Sluigi while (ac && isdigit(**av)) { 305698943Sluigi i = atoi(*av); av++; ac--; 305798943Sluigi if (do_pipe) { 305898943Sluigi if (do_pipe == 1) 3059117469Sluigi p.pipe_nr = i; 306098943Sluigi else 3061117469Sluigi p.fs.fs_nr = i; 3062117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 306398943Sluigi if (i) { 306498943Sluigi exitval = 1; 306598943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3066117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 306798943Sluigi } 306898943Sluigi } else { 3069101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3070117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 307198943Sluigi if (i) { 307298943Sluigi exitval = EX_UNAVAILABLE; 307398943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 307498943Sluigi rulenum); 307598943Sluigi } 307698943Sluigi } 307798943Sluigi } 307898943Sluigi if (exitval != EX_OK) 307998943Sluigi exit(exitval); 308098943Sluigi} 308198943Sluigi 308298943Sluigi 308398943Sluigi/* 308498943Sluigi * fill the interface structure. We do not check the name as we can 308598943Sluigi * create interfaces dynamically, so checking them at insert time 308698943Sluigi * makes relatively little sense. 3087121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3088121816Sbrooks * patterns which match interfaces. 308998943Sluigi */ 309098943Sluigistatic void 309198943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 309298943Sluigi{ 309398943Sluigi cmd->name[0] = '\0'; 309498943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 309598943Sluigi 309698943Sluigi /* Parse the interface or address */ 3097140271Sbrooks if (strcmp(arg, "any") == 0) 309898943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 309998943Sluigi else if (!isdigit(*arg)) { 3100121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3101121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 310298943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 310398943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 310498943Sluigi} 310598943Sluigi 310698943Sluigistatic void 310798943Sluigiconfig_pipe(int ac, char **av) 310898943Sluigi{ 3109117469Sluigi struct dn_pipe p; 311098943Sluigi int i; 311198943Sluigi char *end; 311298943Sluigi void *par = NULL; 311398943Sluigi 3114117469Sluigi memset(&p, 0, sizeof p); 311598943Sluigi 311698943Sluigi av++; ac--; 311798943Sluigi /* Pipe number */ 311898943Sluigi if (ac && isdigit(**av)) { 311998943Sluigi i = atoi(*av); av++; ac--; 312098943Sluigi if (do_pipe == 1) 3121117469Sluigi p.pipe_nr = i; 312298943Sluigi else 3123117469Sluigi p.fs.fs_nr = i; 312498943Sluigi } 312599475Sluigi while (ac > 0) { 312698943Sluigi double d; 312798943Sluigi int tok = match_token(dummynet_params, *av); 312898943Sluigi ac--; av++; 312998943Sluigi 313098943Sluigi switch(tok) { 3131101978Sluigi case TOK_NOERROR: 3132117469Sluigi p.fs.flags_fs |= DN_NOERROR; 3133101978Sluigi break; 3134101978Sluigi 313598943Sluigi case TOK_PLR: 313698943Sluigi NEED1("plr needs argument 0..1\n"); 313798943Sluigi d = strtod(av[0], NULL); 313898943Sluigi if (d > 1) 313998943Sluigi d = 1; 314098943Sluigi else if (d < 0) 314198943Sluigi d = 0; 3142117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 314398943Sluigi ac--; av++; 314498943Sluigi break; 314598943Sluigi 314698943Sluigi case TOK_QUEUE: 314798943Sluigi NEED1("queue needs queue size\n"); 314898943Sluigi end = NULL; 3149117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 315098943Sluigi if (*end == 'K' || *end == 'k') { 3151117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 3152117469Sluigi p.fs.qsize *= 1024; 3153140271Sbrooks } else if (*end == 'B' || 3154140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 3155117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 315698943Sluigi } 315798943Sluigi ac--; av++; 315898943Sluigi break; 315998943Sluigi 316098943Sluigi case TOK_BUCKETS: 316198943Sluigi NEED1("buckets needs argument\n"); 3162117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 316398943Sluigi ac--; av++; 316498943Sluigi break; 316598943Sluigi 316698943Sluigi case TOK_MASK: 316798943Sluigi NEED1("mask needs mask specifier\n"); 316898943Sluigi /* 316998943Sluigi * per-flow queue, mask is dst_ip, dst_port, 317098943Sluigi * src_ip, src_port, proto measured in bits 317198943Sluigi */ 317298943Sluigi par = NULL; 317398943Sluigi 3174145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 317598943Sluigi end = NULL; 317698943Sluigi 317798943Sluigi while (ac >= 1) { 3178117328Sluigi uint32_t *p32 = NULL; 3179117328Sluigi uint16_t *p16 = NULL; 3180145246Sbrooks uint32_t *p20 = NULL; 3181145246Sbrooks struct in6_addr *pa6 = NULL; 3182145246Sbrooks uint32_t a; 318398943Sluigi 318498943Sluigi tok = match_token(dummynet_params, *av); 318598943Sluigi ac--; av++; 318698943Sluigi switch(tok) { 318798943Sluigi case TOK_ALL: 318898943Sluigi /* 318998943Sluigi * special case, all bits significant 319098943Sluigi */ 3191117469Sluigi p.fs.flow_mask.dst_ip = ~0; 3192117469Sluigi p.fs.flow_mask.src_ip = ~0; 3193117469Sluigi p.fs.flow_mask.dst_port = ~0; 3194117469Sluigi p.fs.flow_mask.src_port = ~0; 3195117469Sluigi p.fs.flow_mask.proto = ~0; 3196145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 3197145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 3198145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 3199117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 320098943Sluigi goto end_mask; 320198943Sluigi 320298943Sluigi case TOK_DSTIP: 3203117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 320498943Sluigi break; 320598943Sluigi 320698943Sluigi case TOK_SRCIP: 3207117469Sluigi p32 = &p.fs.flow_mask.src_ip; 320898943Sluigi break; 320998943Sluigi 3210145246Sbrooks case TOK_DSTIP6: 3211145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 3212145246Sbrooks break; 3213145246Sbrooks 3214145246Sbrooks case TOK_SRCIP6: 3215145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 3216145246Sbrooks break; 3217145246Sbrooks 3218145246Sbrooks case TOK_FLOWID: 3219145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 3220145246Sbrooks break; 3221145246Sbrooks 322298943Sluigi case TOK_DSTPORT: 3223117469Sluigi p16 = &p.fs.flow_mask.dst_port; 322498943Sluigi break; 322598943Sluigi 322698943Sluigi case TOK_SRCPORT: 3227117469Sluigi p16 = &p.fs.flow_mask.src_port; 322898943Sluigi break; 322998943Sluigi 323098943Sluigi case TOK_PROTO: 323198943Sluigi break; 323298943Sluigi 323398943Sluigi default: 323498943Sluigi ac++; av--; /* backtrack */ 323598943Sluigi goto end_mask; 323698943Sluigi } 323798943Sluigi if (ac < 1) 323898943Sluigi errx(EX_USAGE, "mask: value missing"); 323998943Sluigi if (*av[0] == '/') { 324098943Sluigi a = strtoul(av[0]+1, &end, 0); 3241145246Sbrooks if (pa6 == NULL) 3242145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 3243106505Smaxim } else 324499909Sluigi a = strtoul(av[0], &end, 0); 324598943Sluigi if (p32 != NULL) 324698943Sluigi *p32 = a; 324798943Sluigi else if (p16 != NULL) { 3248139821Sbrooks if (a > 0xFFFF) 324998943Sluigi errx(EX_DATAERR, 3250144687Sbrooks "port mask must be 16 bit"); 3251117328Sluigi *p16 = (uint16_t)a; 3252145246Sbrooks } else if (p20 != NULL) { 3253145246Sbrooks if (a > 0xfffff) 3254145246Sbrooks errx(EX_DATAERR, 3255145246Sbrooks "flow_id mask must be 20 bit"); 3256145246Sbrooks *p20 = (uint32_t)a; 3257145246Sbrooks } else if (pa6 != NULL) { 3258145246Sbrooks if (a < 0 || a > 128) 3259145246Sbrooks errx(EX_DATAERR, 3260145246Sbrooks "in6addr invalid mask len"); 3261145246Sbrooks else 3262145246Sbrooks n2mask(pa6, a); 326398943Sluigi } else { 3264139821Sbrooks if (a > 0xFF) 326598943Sluigi errx(EX_DATAERR, 3266144687Sbrooks "proto mask must be 8 bit"); 3267117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 326898943Sluigi } 326998943Sluigi if (a != 0) 3270117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 327198943Sluigi ac--; av++; 327298943Sluigi } /* end while, config masks */ 327398943Sluigiend_mask: 327498943Sluigi break; 327598943Sluigi 327698943Sluigi case TOK_RED: 327798943Sluigi case TOK_GRED: 327898943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 3279117469Sluigi p.fs.flags_fs |= DN_IS_RED; 328098943Sluigi if (tok == TOK_GRED) 3281117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 328298943Sluigi /* 328398943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 328498943Sluigi */ 328598943Sluigi if ((end = strsep(&av[0], "/"))) { 328698943Sluigi double w_q = strtod(end, NULL); 328798943Sluigi if (w_q > 1 || w_q <= 0) 328898943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 3289117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 329098943Sluigi } 329198943Sluigi if ((end = strsep(&av[0], "/"))) { 3292117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 329398943Sluigi if (*end == 'K' || *end == 'k') 3294117469Sluigi p.fs.min_th *= 1024; 329598943Sluigi } 329698943Sluigi if ((end = strsep(&av[0], "/"))) { 3297117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 329898943Sluigi if (*end == 'K' || *end == 'k') 3299117469Sluigi p.fs.max_th *= 1024; 330098943Sluigi } 330198943Sluigi if ((end = strsep(&av[0], "/"))) { 330298943Sluigi double max_p = strtod(end, NULL); 330398943Sluigi if (max_p > 1 || max_p <= 0) 330498943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 3305117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 330698943Sluigi } 330798943Sluigi ac--; av++; 330898943Sluigi break; 330998943Sluigi 331098943Sluigi case TOK_DROPTAIL: 3311117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 331298943Sluigi break; 3313106505Smaxim 331498943Sluigi case TOK_BW: 331598943Sluigi NEED1("bw needs bandwidth or interface\n"); 331698943Sluigi if (do_pipe != 1) 331798943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 331898943Sluigi /* 331998943Sluigi * set clocking interface or bandwidth value 332098943Sluigi */ 332198943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 3322117469Sluigi int l = sizeof(p.if_name)-1; 332398943Sluigi /* interface name */ 3324117469Sluigi strncpy(p.if_name, av[0], l); 3325117469Sluigi p.if_name[l] = '\0'; 3326117469Sluigi p.bandwidth = 0; 332798943Sluigi } else { 3328117469Sluigi p.if_name[0] = '\0'; 3329117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 333098943Sluigi if (*end == 'K' || *end == 'k') { 333198943Sluigi end++; 3332117469Sluigi p.bandwidth *= 1000; 333398943Sluigi } else if (*end == 'M') { 333498943Sluigi end++; 3335117469Sluigi p.bandwidth *= 1000000; 333698943Sluigi } 3337140271Sbrooks if (*end == 'B' || 3338140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 3339117469Sluigi p.bandwidth *= 8; 3340117469Sluigi if (p.bandwidth < 0) 334198943Sluigi errx(EX_DATAERR, "bandwidth too large"); 334298943Sluigi } 334398943Sluigi ac--; av++; 334498943Sluigi break; 334598943Sluigi 334698943Sluigi case TOK_DELAY: 334798943Sluigi if (do_pipe != 1) 334898943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 334998943Sluigi NEED1("delay needs argument 0..10000ms\n"); 3350117469Sluigi p.delay = strtoul(av[0], NULL, 0); 335198943Sluigi ac--; av++; 335298943Sluigi break; 335398943Sluigi 335498943Sluigi case TOK_WEIGHT: 335598943Sluigi if (do_pipe == 1) 335698943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 335798943Sluigi NEED1("weight needs argument 0..100\n"); 3358117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 335998943Sluigi ac--; av++; 336098943Sluigi break; 336198943Sluigi 336298943Sluigi case TOK_PIPE: 336398943Sluigi if (do_pipe == 1) 336498943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 336598943Sluigi NEED1("pipe needs pipe_number\n"); 3366117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 336798943Sluigi ac--; av++; 336898943Sluigi break; 336998943Sluigi 337098943Sluigi default: 3371124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 337298943Sluigi } 337398943Sluigi } 337498943Sluigi if (do_pipe == 1) { 3375117469Sluigi if (p.pipe_nr == 0) 337698943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 3377117469Sluigi if (p.delay > 10000) 337898943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 337998943Sluigi } else { /* do_pipe == 2, queue */ 3380117469Sluigi if (p.fs.parent_nr == 0) 338198943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 3382117469Sluigi if (p.fs.weight >100) 338398943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 338498943Sluigi } 3385117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 3386117469Sluigi if (p.fs.qsize > 1024*1024) 338798943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 338898943Sluigi } else { 3389117469Sluigi if (p.fs.qsize > 100) 339098943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 339198943Sluigi } 3392117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 339398943Sluigi size_t len; 339498943Sluigi int lookup_depth, avg_pkt_size; 339598943Sluigi double s, idle, weight, w_q; 3396117469Sluigi struct clockinfo ck; 339798943Sluigi int t; 339898943Sluigi 3399117469Sluigi if (p.fs.min_th >= p.fs.max_th) 340098943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 3401117469Sluigi p.fs.min_th, p.fs.max_th); 3402117469Sluigi if (p.fs.max_th == 0) 340398943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 340498943Sluigi 340598943Sluigi len = sizeof(int); 340698943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 340798943Sluigi &lookup_depth, &len, NULL, 0) == -1) 340898943Sluigi 340998943Sluigi errx(1, "sysctlbyname(\"%s\")", 341098943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 341198943Sluigi if (lookup_depth == 0) 341298943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 341398943Sluigi " must be greater than zero"); 341498943Sluigi 341598943Sluigi len = sizeof(int); 341698943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 341798943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 341898943Sluigi 341998943Sluigi errx(1, "sysctlbyname(\"%s\")", 342098943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 342198943Sluigi if (avg_pkt_size == 0) 342298943Sluigi errx(EX_DATAERR, 342398943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 342498943Sluigi " be greater than zero"); 342598943Sluigi 342698943Sluigi len = sizeof(struct clockinfo); 3427117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 342898943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 342998943Sluigi 343098943Sluigi /* 343198943Sluigi * Ticks needed for sending a medium-sized packet. 343298943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 343398943Sluigi * do not have bandwidth information, because that is stored 343498943Sluigi * in the parent pipe, and also we have multiple queues 343598943Sluigi * competing for it. So we set s=0, which is not very 343698943Sluigi * correct. But on the other hand, why do we want RED with 343798943Sluigi * WF2Q+ ? 343898943Sluigi */ 3439117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 344098943Sluigi s = 0; 344198943Sluigi else 3442117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 344398943Sluigi 344498943Sluigi /* 344598943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 344698943Sluigi * NOTA: (3/w_q) is approx the value x so that 344798943Sluigi * (1-w_q)^x < 10^-3. 344898943Sluigi */ 3449117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 345098943Sluigi idle = s * 3. / w_q; 3451117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 3452117469Sluigi if (!p.fs.lookup_step) 3453117469Sluigi p.fs.lookup_step = 1; 345498943Sluigi weight = 1 - w_q; 3455117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 345698943Sluigi weight *= weight; 3457117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 345898943Sluigi } 3459117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 346098943Sluigi if (i) 346198943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 346298943Sluigi} 346398943Sluigi 346498943Sluigistatic void 3465117577Sluigiget_mac_addr_mask(char *p, uint8_t *addr, uint8_t *mask) 346698943Sluigi{ 346798943Sluigi int i, l; 346898943Sluigi 346998943Sluigi for (i=0; i<6; i++) 347098943Sluigi addr[i] = mask[i] = 0; 3471140271Sbrooks if (strcmp(p, "any") == 0) 347298943Sluigi return; 347398943Sluigi 347498943Sluigi for (i=0; *p && i<6;i++, p++) { 347598943Sluigi addr[i] = strtol(p, &p, 16); 347698943Sluigi if (*p != ':') /* we start with the mask */ 347798943Sluigi break; 347898943Sluigi } 347998943Sluigi if (*p == '/') { /* mask len */ 348098943Sluigi l = strtol(p+1, &p, 0); 348198943Sluigi for (i=0; l>0; l -=8, i++) 348298943Sluigi mask[i] = (l >=8) ? 0xff : (~0) << (8-l); 348398943Sluigi } else if (*p == '&') { /* mask */ 348498943Sluigi for (i=0, p++; *p && i<6;i++, p++) { 348598943Sluigi mask[i] = strtol(p, &p, 16); 348698943Sluigi if (*p != ':') 348798943Sluigi break; 348898943Sluigi } 348998943Sluigi } else if (*p == '\0') { 349098943Sluigi for (i=0; i<6; i++) 349198943Sluigi mask[i] = 0xff; 349298943Sluigi } 349398943Sluigi for (i=0; i<6; i++) 349498943Sluigi addr[i] &= mask[i]; 349598943Sluigi} 349698943Sluigi 349798943Sluigi/* 349898943Sluigi * helper function, updates the pointer to cmd with the length 349998943Sluigi * of the current command, and also cleans up the first word of 350098943Sluigi * the new command in case it has been clobbered before. 350198943Sluigi */ 350298943Sluigistatic ipfw_insn * 350398943Sluiginext_cmd(ipfw_insn *cmd) 350498943Sluigi{ 350598943Sluigi cmd += F_LEN(cmd); 350698943Sluigi bzero(cmd, sizeof(*cmd)); 350798943Sluigi return cmd; 350898943Sluigi} 350998943Sluigi 351098943Sluigi/* 3511117469Sluigi * Takes arguments and copies them into a comment 3512117469Sluigi */ 3513117469Sluigistatic void 3514117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 3515117469Sluigi{ 3516117469Sluigi int i, l; 3517117469Sluigi char *p = (char *)(cmd + 1); 3518117577Sluigi 3519117469Sluigi cmd->opcode = O_NOP; 3520117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 3521117469Sluigi 3522117469Sluigi /* Compute length of comment string. */ 3523117469Sluigi for (i = 0, l = 0; i < ac; i++) 3524117469Sluigi l += strlen(av[i]) + 1; 3525117469Sluigi if (l == 0) 3526117469Sluigi return; 3527117469Sluigi if (l > 84) 3528117469Sluigi errx(EX_DATAERR, 3529117469Sluigi "comment too long (max 80 chars)"); 3530117469Sluigi l = 1 + (l+3)/4; 3531117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 3532117469Sluigi for (i = 0; i < ac; i++) { 3533117469Sluigi strcpy(p, av[i]); 3534117469Sluigi p += strlen(av[i]); 3535117469Sluigi *p++ = ' '; 3536117469Sluigi } 3537117469Sluigi *(--p) = '\0'; 3538117469Sluigi} 3539117577Sluigi 3540117469Sluigi/* 354198943Sluigi * A function to fill simple commands of size 1. 354298943Sluigi * Existing flags are preserved. 354398943Sluigi */ 354498943Sluigistatic void 3545117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 354698943Sluigi{ 354798943Sluigi cmd->opcode = opcode; 354898943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 354998943Sluigi cmd->arg1 = arg; 355098943Sluigi} 355198943Sluigi 355298943Sluigi/* 355398943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 355498943Sluigi * two microinstructions, and returns the pointer to the last one. 355598943Sluigi */ 355698943Sluigistatic ipfw_insn * 355798943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 355898943Sluigi{ 3559102087Sluigi ipfw_insn_mac *mac; 356098943Sluigi 3561102087Sluigi if (ac < 2) 3562102098Sluigi errx(EX_DATAERR, "MAC dst src"); 356398943Sluigi 356498943Sluigi cmd->opcode = O_MACADDR2; 356598943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 356698943Sluigi 356798943Sluigi mac = (ipfw_insn_mac *)cmd; 3568101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 356998943Sluigi get_mac_addr_mask(av[1], &(mac->addr[6]), &(mac->mask[6])); /* src */ 3570102087Sluigi return cmd; 3571102087Sluigi} 357298943Sluigi 3573102087Sluigistatic ipfw_insn * 3574102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 3575102087Sluigi{ 3576102087Sluigi if (ac < 1) 3577102087Sluigi errx(EX_DATAERR, "missing MAC type"); 3578102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 3579102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 358098943Sluigi cmd->opcode = O_MAC_TYPE; 3581102087Sluigi return cmd; 3582102087Sluigi } else 3583102087Sluigi return NULL; 3584102087Sluigi} 358598943Sluigi 3586102087Sluigistatic ipfw_insn * 3587152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 3588102087Sluigi{ 3589102087Sluigi struct protoent *pe; 3590152923Sume char *ep; 3591152923Sume int proto; 3592102087Sluigi 3593156315Sume proto = strtol(av, &ep, 10); 3594156315Sume if (*ep != '\0' || proto <= 0) { 3595152923Sume if ((pe = getprotobyname(av)) == NULL) 3596152923Sume return NULL; 3597152923Sume proto = pe->p_proto; 3598152923Sume } 3599145246Sbrooks 3600152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 3601152923Sume *protop = proto; 3602152923Sume return cmd; 3603152923Sume} 3604152923Sume 3605152923Sumestatic ipfw_insn * 3606152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 3607152923Sume{ 3608152923Sume u_char proto = IPPROTO_IP; 3609152923Sume 3610156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 3611146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 3612152923Sume else if (strcmp(av, "ip4") == 0) 3613152923Sume /* explicit "just IPv4" rule */ 3614152923Sume fill_cmd(cmd, O_IP4, 0, 0); 3615152923Sume else if (strcmp(av, "ip6") == 0) { 3616152923Sume /* explicit "just IPv6" rule */ 3617152923Sume proto = IPPROTO_IPV6; 3618152923Sume fill_cmd(cmd, O_IP6, 0, 0); 3619152923Sume } else 3620152923Sume return add_proto0(cmd, av, protop); 3621152923Sume 3622152923Sume *protop = proto; 3623152923Sume return cmd; 3624152923Sume} 3625152923Sume 3626152923Sumestatic ipfw_insn * 3627152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 3628152923Sume{ 3629152923Sume u_char proto = IPPROTO_IP; 3630152923Sume 3631152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 3632152923Sume ; /* do not set O_IP4 nor O_IP6 */ 3633146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 3634146894Smlaier /* explicit "just IPv4" rule */ 3635146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 3636146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 3637146894Smlaier /* explicit "just IPv6" rule */ 3638152923Sume proto = IPPROTO_IPV6; 3639146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 3640152923Sume } else 3641152923Sume return add_proto0(cmd, av, protop); 3642145246Sbrooks 3643152923Sume *protop = proto; 364498943Sluigi return cmd; 364598943Sluigi} 364698943Sluigi 3647102087Sluigistatic ipfw_insn * 3648102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 3649102087Sluigi{ 3650102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3651102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3652102087Sluigi cmd->opcode = O_IP_SRC_SET; 3653130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3654130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 3655102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3656102087Sluigi cmd->opcode = O_IP_SRC_ME; 3657102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3658102087Sluigi cmd->opcode = O_IP_SRC; 3659117328Sluigi else /* addr/mask */ 3660102087Sluigi cmd->opcode = O_IP_SRC_MASK; 3661102087Sluigi return cmd; 3662102087Sluigi} 3663102087Sluigi 3664102087Sluigistatic ipfw_insn * 3665102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 3666102087Sluigi{ 3667102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3668102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3669102087Sluigi ; 3670130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3671130281Sru ; 3672102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3673102087Sluigi cmd->opcode = O_IP_DST_ME; 3674102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3675102087Sluigi cmd->opcode = O_IP_DST; 3676117328Sluigi else /* addr/mask */ 3677102087Sluigi cmd->opcode = O_IP_DST_MASK; 3678102087Sluigi return cmd; 3679102087Sluigi} 3680102087Sluigi 3681102087Sluigistatic ipfw_insn * 3682102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 3683102087Sluigi{ 3684140271Sbrooks if (_substrcmp(av, "any") == 0) { 3685102087Sluigi return NULL; 3686102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 3687102087Sluigi /* XXX todo: check that we have a protocol with ports */ 3688102087Sluigi cmd->opcode = opcode; 3689102087Sluigi return cmd; 3690102087Sluigi } 3691102087Sluigi return NULL; 3692102087Sluigi} 3693102087Sluigi 3694145246Sbrooksstatic ipfw_insn * 3695145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 3696145246Sbrooks{ 3697145246Sbrooks struct in6_addr a; 3698158553Smlaier char *host, *ch; 3699158553Smlaier ipfw_insn *ret = NULL; 3700145246Sbrooks 3701158553Smlaier if ((host = strdup(av)) == NULL) 3702158553Smlaier return NULL; 3703158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 3704158553Smlaier *ch = '\0'; 3705158553Smlaier 3706145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3707158553Smlaier inet_pton(AF_INET6, host, &a)) 3708158553Smlaier ret = add_srcip6(cmd, av); 3709145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3710158553Smlaier if ((ret == NULL) && proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3711158553Smlaier !inet_pton(AF_INET6, host, &a)) 3712158553Smlaier ret = add_srcip(cmd, av); 3713158553Smlaier if ((ret == NULL) && strcmp(av, "any") != 0) 3714158553Smlaier ret = cmd; 3715145246Sbrooks 3716158553Smlaier free(host); 3717158553Smlaier return ret; 3718145246Sbrooks} 3719145246Sbrooks 3720145246Sbrooksstatic ipfw_insn * 3721145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 3722145246Sbrooks{ 3723145246Sbrooks struct in6_addr a; 3724158553Smlaier char *host, *ch; 3725158553Smlaier ipfw_insn *ret = NULL; 3726145246Sbrooks 3727158553Smlaier if ((host = strdup(av)) == NULL) 3728158553Smlaier return NULL; 3729158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 3730158553Smlaier *ch = '\0'; 3731158553Smlaier 3732145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3733158553Smlaier inet_pton(AF_INET6, host, &a)) 3734158553Smlaier ret = add_dstip6(cmd, av); 3735145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3736158553Smlaier if ((ret == NULL) && proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3737145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3738158553Smlaier ret = add_dstip(cmd, av); 3739158553Smlaier if ((ret == NULL) && strcmp(av, "any") != 0) 3740158553Smlaier ret = cmd; 3741145246Sbrooks 3742158553Smlaier free(host); 3743158553Smlaier return ret; 3744145246Sbrooks} 3745145246Sbrooks 374698943Sluigi/* 374798943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 374898943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 374998943Sluigi * into the actual rule. 375098943Sluigi * 3751136071Sgreen * The syntax for a rule starts with the action, followed by 3752136071Sgreen * optional action parameters, and the various match patterns. 3753108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 375498943Sluigi * (generated if the rule includes a keep-state option), then the 3755136071Sgreen * various match patterns, log/altq actions, and the actual action. 3756106505Smaxim * 375798943Sluigi */ 375898943Sluigistatic void 375998943Sluigiadd(int ac, char *av[]) 376098943Sluigi{ 376198943Sluigi /* 376298943Sluigi * rules are added into the 'rulebuf' and then copied in 376398943Sluigi * the correct order into the actual rule. 376498943Sluigi * Some things that need to go out of order (prob, action etc.) 376598943Sluigi * go into actbuf[]. 376698943Sluigi */ 3767117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 376898943Sluigi 3769117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 3770102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 377198943Sluigi 377298943Sluigi struct ip_fw *rule; 377398943Sluigi 377498943Sluigi /* 377598943Sluigi * various flags used to record that we entered some fields. 377698943Sluigi */ 3777101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 3778136071Sgreen ipfw_insn *have_log = NULL, *have_altq = NULL; 3779134475Smaxim size_t len; 378098943Sluigi 378198943Sluigi int i; 378298943Sluigi 378398943Sluigi int open_par = 0; /* open parenthesis ( */ 378498943Sluigi 378598943Sluigi /* proto is here because it is used to fetch ports */ 378698943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 378798943Sluigi 3788107289Sluigi double match_prob = 1; /* match probability, default is always match */ 3789107289Sluigi 379098943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 379198943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 379298943Sluigi bzero(rulebuf, sizeof(rulebuf)); 379398943Sluigi 379498943Sluigi rule = (struct ip_fw *)rulebuf; 379598943Sluigi cmd = (ipfw_insn *)cmdbuf; 379698943Sluigi action = (ipfw_insn *)actbuf; 379798943Sluigi 379898943Sluigi av++; ac--; 379998943Sluigi 380098943Sluigi /* [rule N] -- Rule number optional */ 380198943Sluigi if (ac && isdigit(**av)) { 380298943Sluigi rule->rulenum = atoi(*av); 380398943Sluigi av++; 380498943Sluigi ac--; 380598943Sluigi } 380698943Sluigi 3807117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 3808140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 3809101628Sluigi int set = strtoul(av[1], NULL, 10); 3810117655Sluigi if (set < 0 || set > RESVD_SET) 3811101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 3812101628Sluigi rule->set = set; 3813101628Sluigi av += 2; ac -= 2; 3814101628Sluigi } 3815101628Sluigi 381698943Sluigi /* [prob D] -- match probability, optional */ 3817140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 3818107289Sluigi match_prob = strtod(av[1], NULL); 381998943Sluigi 3820107289Sluigi if (match_prob <= 0 || match_prob > 1) 382198943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 382298943Sluigi av += 2; ac -= 2; 382398943Sluigi } 382498943Sluigi 382598943Sluigi /* action -- mandatory */ 382698943Sluigi NEED1("missing action"); 382798943Sluigi i = match_token(rule_actions, *av); 382898943Sluigi ac--; av++; 382998943Sluigi action->len = 1; /* default */ 383098943Sluigi switch(i) { 383198943Sluigi case TOK_CHECKSTATE: 3832101116Sluigi have_state = action; 383398943Sluigi action->opcode = O_CHECK_STATE; 383498943Sluigi break; 383598943Sluigi 383698943Sluigi case TOK_ACCEPT: 383798943Sluigi action->opcode = O_ACCEPT; 383898943Sluigi break; 383998943Sluigi 384098943Sluigi case TOK_DENY: 384198943Sluigi action->opcode = O_DENY; 384299475Sluigi action->arg1 = 0; 384398943Sluigi break; 384498943Sluigi 384599475Sluigi case TOK_REJECT: 384699475Sluigi action->opcode = O_REJECT; 384799475Sluigi action->arg1 = ICMP_UNREACH_HOST; 384899475Sluigi break; 384999475Sluigi 385099475Sluigi case TOK_RESET: 385199475Sluigi action->opcode = O_REJECT; 385299475Sluigi action->arg1 = ICMP_REJECT_RST; 385399475Sluigi break; 385499475Sluigi 3855149020Sbz case TOK_RESET6: 3856149020Sbz action->opcode = O_UNREACH6; 3857149020Sbz action->arg1 = ICMP6_UNREACH_RST; 3858149020Sbz break; 3859149020Sbz 386099475Sluigi case TOK_UNREACH: 386199475Sluigi action->opcode = O_REJECT; 386299475Sluigi NEED1("missing reject code"); 386399475Sluigi fill_reject_code(&action->arg1, *av); 386499475Sluigi ac--; av++; 386599475Sluigi break; 386699475Sluigi 3867149020Sbz case TOK_UNREACH6: 3868149020Sbz action->opcode = O_UNREACH6; 3869149020Sbz NEED1("missing unreach code"); 3870149020Sbz fill_unreach6_code(&action->arg1, *av); 3871149020Sbz ac--; av++; 3872149020Sbz break; 3873149020Sbz 387498943Sluigi case TOK_COUNT: 387598943Sluigi action->opcode = O_COUNT; 387698943Sluigi break; 387798943Sluigi 387898943Sluigi case TOK_QUEUE: 3879153374Sglebius action->opcode = O_QUEUE; 3880153374Sglebius goto chkarg; 388198943Sluigi case TOK_PIPE: 3882153374Sglebius action->opcode = O_PIPE; 3883153374Sglebius goto chkarg; 388498943Sluigi case TOK_SKIPTO: 3885153374Sglebius action->opcode = O_SKIPTO; 3886153374Sglebius goto chkarg; 3887153374Sglebius case TOK_NETGRAPH: 3888153374Sglebius action->opcode = O_NETGRAPH; 3889153374Sglebius goto chkarg; 3890153374Sglebius case TOK_NGTEE: 3891153374Sglebius action->opcode = O_NGTEE; 3892153374Sglebius goto chkarg; 389398943Sluigi case TOK_DIVERT: 3894153374Sglebius action->opcode = O_DIVERT; 3895153374Sglebius goto chkarg; 389698943Sluigi case TOK_TEE: 3897153374Sglebius action->opcode = O_TEE; 3898153374Sglebiuschkarg: 3899153374Sglebius if (!ac) 3900153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 3901153374Sglebius if (isdigit(**av)) { 3902153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 3903153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 3904153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 3905153374Sglebius *(av - 1)); 3906153374Sglebius } else if (_substrcmp(*av, TABLEARG) == 0) { 3907153374Sglebius action->arg1 = IP_FW_TABLEARG; 3908153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 390998943Sluigi struct servent *s; 391098943Sluigi setservent(1); 391198943Sluigi s = getservbyname(av[0], "divert"); 391298943Sluigi if (s != NULL) 391398943Sluigi action->arg1 = ntohs(s->s_port); 391498943Sluigi else 391598943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 3916153374Sglebius } else 3917153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 391898943Sluigi ac--; av++; 391998943Sluigi break; 392098943Sluigi 392198943Sluigi case TOK_FORWARD: { 392298943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 392398943Sluigi char *s, *end; 392498943Sluigi 392598943Sluigi NEED1("missing forward address[:port]"); 392698943Sluigi 392798943Sluigi action->opcode = O_FORWARD_IP; 392898943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 392998943Sluigi 393098943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 393198943Sluigi p->sa.sin_family = AF_INET; 393298943Sluigi p->sa.sin_port = 0; 393398943Sluigi /* 393498943Sluigi * locate the address-port separator (':' or ',') 393598943Sluigi */ 393698943Sluigi s = strchr(*av, ':'); 393798943Sluigi if (s == NULL) 393898943Sluigi s = strchr(*av, ','); 393998943Sluigi if (s != NULL) { 394098943Sluigi *(s++) = '\0'; 394198943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 394298943Sluigi if (s == end) 394398943Sluigi errx(EX_DATAERR, 394498943Sluigi "illegal forwarding port ``%s''", s); 3945103241Sluigi p->sa.sin_port = (u_short)i; 394698943Sluigi } 394798943Sluigi lookup_host(*av, &(p->sa.sin_addr)); 394898943Sluigi } 394998943Sluigi ac--; av++; 395098943Sluigi break; 395198943Sluigi 3952117469Sluigi case TOK_COMMENT: 3953117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 3954117469Sluigi action->opcode = O_COUNT; 3955117469Sluigi ac++; av--; /* go back... */ 3956117469Sluigi break; 3957117469Sluigi 395898943Sluigi default: 3959102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 396098943Sluigi } 396198943Sluigi action = next_cmd(action); 396298943Sluigi 396398943Sluigi /* 3964136071Sgreen * [altq queuename] -- altq tag, optional 396598943Sluigi * [log [logamount N]] -- log, optional 396698943Sluigi * 3967136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 396898943Sluigi * skipped in the copy section to the end of the buffer. 396998943Sluigi */ 3970136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 3971136071Sgreen ac--; av++; 3972136071Sgreen switch (i) { 3973136071Sgreen case TOK_LOG: 3974136071Sgreen { 3975136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 3976136071Sgreen int l; 397798943Sluigi 3978136071Sgreen if (have_log) 3979136071Sgreen errx(EX_DATAERR, 3980136071Sgreen "log cannot be specified more than once"); 3981136071Sgreen have_log = (ipfw_insn *)c; 3982136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 3983136071Sgreen cmd->opcode = O_LOG; 3984140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 3985136071Sgreen ac--; av++; 3986136071Sgreen NEED1("logamount requires argument"); 3987136071Sgreen l = atoi(*av); 3988136071Sgreen if (l < 0) 3989136071Sgreen errx(EX_DATAERR, 3990136071Sgreen "logamount must be positive"); 3991136071Sgreen c->max_log = l; 3992136071Sgreen ac--; av++; 3993136071Sgreen } else { 3994136071Sgreen len = sizeof(c->max_log); 3995136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 3996136071Sgreen &c->max_log, &len, NULL, 0) == -1) 3997136071Sgreen errx(1, "sysctlbyname(\"%s\")", 3998136071Sgreen "net.inet.ip.fw.verbose_limit"); 3999136071Sgreen } 4000136071Sgreen } 4001136071Sgreen break; 4002136071Sgreen 4003136071Sgreen case TOK_ALTQ: 4004136071Sgreen { 4005136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4006136071Sgreen 4007136071Sgreen NEED1("missing altq queue name"); 4008136071Sgreen if (have_altq) 4009136071Sgreen errx(EX_DATAERR, 4010136071Sgreen "altq cannot be specified more than once"); 4011136071Sgreen have_altq = (ipfw_insn *)a; 4012136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4013136071Sgreen cmd->opcode = O_ALTQ; 4014136071Sgreen fill_altq_qid(&a->qid, *av); 401598943Sluigi ac--; av++; 4016136071Sgreen } 4017136071Sgreen break; 4018136071Sgreen 4019136071Sgreen default: 4020136071Sgreen abort(); 402198943Sluigi } 402298943Sluigi cmd = next_cmd(cmd); 402398943Sluigi } 402498943Sluigi 4025101116Sluigi if (have_state) /* must be a check-state, we are done */ 402698943Sluigi goto done; 402798943Sluigi 402898943Sluigi#define OR_START(target) \ 402998943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 403098943Sluigi if (open_par) \ 403198943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 4032101641Sluigi prev = NULL; \ 403398943Sluigi open_par = 1; \ 403498943Sluigi if ( (av[0])[1] == '\0') { \ 403598943Sluigi ac--; av++; \ 403698943Sluigi } else \ 403798943Sluigi (*av)++; \ 403898943Sluigi } \ 403998943Sluigi target: \ 404098943Sluigi 404198943Sluigi 404298943Sluigi#define CLOSE_PAR \ 404398943Sluigi if (open_par) { \ 404498943Sluigi if (ac && ( \ 4045140271Sbrooks strcmp(*av, ")") == 0 || \ 4046140271Sbrooks strcmp(*av, "}") == 0)) { \ 4047101641Sluigi prev = NULL; \ 404898943Sluigi open_par = 0; \ 404998943Sluigi ac--; av++; \ 405098943Sluigi } else \ 405198943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 405298943Sluigi } 4053106505Smaxim 405498943Sluigi#define NOT_BLOCK \ 4055140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 405698943Sluigi if (cmd->len & F_NOT) \ 405798943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 405898943Sluigi cmd->len |= F_NOT; \ 405998943Sluigi ac--; av++; \ 406098943Sluigi } 406198943Sluigi 406298943Sluigi#define OR_BLOCK(target) \ 4063140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 406498943Sluigi if (prev == NULL || open_par == 0) \ 406598943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 406698943Sluigi prev->len |= F_OR; \ 406798943Sluigi ac--; av++; \ 406898943Sluigi goto target; \ 406998943Sluigi } \ 407098943Sluigi CLOSE_PAR; 407198943Sluigi 4072102087Sluigi first_cmd = cmd; 4073102098Sluigi 4074102098Sluigi#if 0 407598943Sluigi /* 4076102087Sluigi * MAC addresses, optional. 4077102087Sluigi * If we have this, we skip the part "proto from src to dst" 4078102087Sluigi * and jump straight to the option parsing. 4079102087Sluigi */ 4080102087Sluigi NOT_BLOCK; 4081102087Sluigi NEED1("missing protocol"); 4082140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 4083140271Sbrooks _substrcmp(*av, "mac") == 0) { 4084102087Sluigi ac--; av++; /* the "MAC" keyword */ 4085102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 4086102087Sluigi cmd = next_cmd(cmd); 4087102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 4088102087Sluigi NOT_BLOCK; 4089102087Sluigi NEED1("missing mac type"); 4090102087Sluigi if (add_mactype(cmd, ac, av[0])) 4091102087Sluigi cmd = next_cmd(cmd); 4092102087Sluigi ac--; av++; /* any or mac-type */ 4093102087Sluigi goto read_options; 4094102087Sluigi } 4095102098Sluigi#endif 4096102087Sluigi 4097102087Sluigi /* 409898943Sluigi * protocol, mandatory 409998943Sluigi */ 410098943Sluigi OR_START(get_proto); 410198943Sluigi NOT_BLOCK; 410298943Sluigi NEED1("missing protocol"); 4103152923Sume if (add_proto_compat(cmd, *av, &proto)) { 4104102087Sluigi av++; ac--; 4105147105Smlaier if (F_LEN(cmd) != 0) { 4106102087Sluigi prev = cmd; 4107102087Sluigi cmd = next_cmd(cmd); 4108102087Sluigi } 4109102098Sluigi } else if (first_cmd != cmd) { 4110116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 4111102098Sluigi } else 4112102098Sluigi goto read_options; 411398943Sluigi OR_BLOCK(get_proto); 411498943Sluigi 411598943Sluigi /* 4116102087Sluigi * "from", mandatory 411798943Sluigi */ 4118140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 411998943Sluigi errx(EX_USAGE, "missing ``from''"); 412098943Sluigi ac--; av++; 412198943Sluigi 412298943Sluigi /* 412398943Sluigi * source IP, mandatory 412498943Sluigi */ 412598943Sluigi OR_START(source_ip); 412698943Sluigi NOT_BLOCK; /* optional "not" */ 412798943Sluigi NEED1("missing source address"); 4128145246Sbrooks if (add_src(cmd, *av, proto)) { 4129102087Sluigi ac--; av++; 4130102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4131102087Sluigi prev = cmd; 4132102087Sluigi cmd = next_cmd(cmd); 4133102087Sluigi } 4134145246Sbrooks } else 4135145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 413698943Sluigi OR_BLOCK(source_ip); 413798943Sluigi 413898943Sluigi /* 413998943Sluigi * source ports, optional 414098943Sluigi */ 414198943Sluigi NOT_BLOCK; /* optional "not" */ 4142101641Sluigi if (ac) { 4143140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4144102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4145102087Sluigi ac--; av++; 4146102087Sluigi if (F_LEN(cmd) != 0) 4147102087Sluigi cmd = next_cmd(cmd); 4148101641Sluigi } 414998943Sluigi } 415098943Sluigi 415198943Sluigi /* 4152102087Sluigi * "to", mandatory 415398943Sluigi */ 4154140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 415598943Sluigi errx(EX_USAGE, "missing ``to''"); 415698943Sluigi av++; ac--; 415798943Sluigi 415898943Sluigi /* 415998943Sluigi * destination, mandatory 416098943Sluigi */ 416198943Sluigi OR_START(dest_ip); 416298943Sluigi NOT_BLOCK; /* optional "not" */ 416398943Sluigi NEED1("missing dst address"); 4164145246Sbrooks if (add_dst(cmd, *av, proto)) { 4165102087Sluigi ac--; av++; 4166102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4167102087Sluigi prev = cmd; 4168102087Sluigi cmd = next_cmd(cmd); 4169102087Sluigi } 4170145246Sbrooks } else 4171145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 417298943Sluigi OR_BLOCK(dest_ip); 417398943Sluigi 417498943Sluigi /* 417598943Sluigi * dest. ports, optional 417698943Sluigi */ 417798943Sluigi NOT_BLOCK; /* optional "not" */ 4178101641Sluigi if (ac) { 4179140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4180102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4181102087Sluigi ac--; av++; 4182102087Sluigi if (F_LEN(cmd) != 0) 4183102087Sluigi cmd = next_cmd(cmd); 4184101641Sluigi } 418598943Sluigi } 418698943Sluigi 418798943Sluigiread_options: 4188102087Sluigi if (ac && first_cmd == cmd) { 4189102087Sluigi /* 4190102087Sluigi * nothing specified so far, store in the rule to ease 4191102087Sluigi * printout later. 4192102087Sluigi */ 4193102087Sluigi rule->_pad = 1; 4194102087Sluigi } 419598943Sluigi prev = NULL; 419698943Sluigi while (ac) { 4197101641Sluigi char *s; 4198101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 419998943Sluigi 4200101641Sluigi s = *av; 4201101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 4202101641Sluigi 420398943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 420498943Sluigi if (cmd->len & F_NOT) 420598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 420698943Sluigi cmd->len = F_NOT; 420798943Sluigi s++; 420898943Sluigi } 420998943Sluigi i = match_token(rule_options, s); 421098943Sluigi ac--; av++; 421198943Sluigi switch(i) { 421298943Sluigi case TOK_NOT: 421398943Sluigi if (cmd->len & F_NOT) 421498943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 421598943Sluigi cmd->len = F_NOT; 421698943Sluigi break; 421798943Sluigi 421898943Sluigi case TOK_OR: 4219101641Sluigi if (open_par == 0 || prev == NULL) 422098943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 422198943Sluigi prev->len |= F_OR; 422298943Sluigi break; 4223101641Sluigi 4224101641Sluigi case TOK_STARTBRACE: 4225101641Sluigi if (open_par) 4226101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 4227101641Sluigi open_par = 1; 4228101641Sluigi break; 4229101641Sluigi 4230101641Sluigi case TOK_ENDBRACE: 4231101641Sluigi if (!open_par) 4232101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 4233101641Sluigi open_par = 0; 4234102087Sluigi prev = NULL; 4235101641Sluigi break; 4236101641Sluigi 423798943Sluigi case TOK_IN: 423898943Sluigi fill_cmd(cmd, O_IN, 0, 0); 423998943Sluigi break; 424098943Sluigi 424198943Sluigi case TOK_OUT: 424298943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 424398943Sluigi fill_cmd(cmd, O_IN, 0, 0); 424498943Sluigi break; 424598943Sluigi 4246136073Sgreen case TOK_DIVERTED: 4247136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 4248136073Sgreen break; 4249136073Sgreen 4250136073Sgreen case TOK_DIVERTEDLOOPBACK: 4251136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 4252136073Sgreen break; 4253136073Sgreen 4254136073Sgreen case TOK_DIVERTEDOUTPUT: 4255136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 4256136073Sgreen break; 4257136073Sgreen 425898943Sluigi case TOK_FRAG: 425998943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 426098943Sluigi break; 426198943Sluigi 426298943Sluigi case TOK_LAYER2: 426398943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 426498943Sluigi break; 426598943Sluigi 426698943Sluigi case TOK_XMIT: 426798943Sluigi case TOK_RECV: 426898943Sluigi case TOK_VIA: 426998943Sluigi NEED1("recv, xmit, via require interface name" 427098943Sluigi " or address"); 427198943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 427298943Sluigi ac--; av++; 427398943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 427498943Sluigi break; 427598943Sluigi if (i == TOK_XMIT) 427698943Sluigi cmd->opcode = O_XMIT; 427798943Sluigi else if (i == TOK_RECV) 427898943Sluigi cmd->opcode = O_RECV; 427998943Sluigi else if (i == TOK_VIA) 428098943Sluigi cmd->opcode = O_VIA; 428198943Sluigi break; 428298943Sluigi 428399475Sluigi case TOK_ICMPTYPES: 428499475Sluigi NEED1("icmptypes requires list of types"); 428599475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 428699475Sluigi av++; ac--; 428799475Sluigi break; 4288145246Sbrooks 4289145246Sbrooks case TOK_ICMP6TYPES: 4290145246Sbrooks NEED1("icmptypes requires list of types"); 4291145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 4292145246Sbrooks av++; ac--; 4293145246Sbrooks break; 429499475Sluigi 429598943Sluigi case TOK_IPTTL: 429698943Sluigi NEED1("ipttl requires TTL"); 4297116690Sluigi if (strpbrk(*av, "-,")) { 4298116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 4299116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 4300116690Sluigi } else 4301116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 430298943Sluigi ac--; av++; 430398943Sluigi break; 430498943Sluigi 430598943Sluigi case TOK_IPID: 4306116690Sluigi NEED1("ipid requires id"); 4307116690Sluigi if (strpbrk(*av, "-,")) { 4308116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 4309116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 4310116690Sluigi } else 4311116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 431298943Sluigi ac--; av++; 431398943Sluigi break; 431498943Sluigi 431598943Sluigi case TOK_IPLEN: 431698943Sluigi NEED1("iplen requires length"); 4317116690Sluigi if (strpbrk(*av, "-,")) { 4318116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 4319116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 4320116690Sluigi } else 4321116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 432298943Sluigi ac--; av++; 432398943Sluigi break; 432498943Sluigi 432598943Sluigi case TOK_IPVER: 432698943Sluigi NEED1("ipver requires version"); 432798943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 432898943Sluigi ac--; av++; 432998943Sluigi break; 433098943Sluigi 433199475Sluigi case TOK_IPPRECEDENCE: 433299475Sluigi NEED1("ipprecedence requires value"); 433399475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 433499475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 433599475Sluigi ac--; av++; 433699475Sluigi break; 433799475Sluigi 433898943Sluigi case TOK_IPOPTS: 433998943Sluigi NEED1("missing argument for ipoptions"); 4340101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 434198943Sluigi ac--; av++; 434298943Sluigi break; 434398943Sluigi 434499475Sluigi case TOK_IPTOS: 434599475Sluigi NEED1("missing argument for iptos"); 4346101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 434799475Sluigi ac--; av++; 434899475Sluigi break; 434999475Sluigi 435098943Sluigi case TOK_UID: 435198943Sluigi NEED1("uid requires argument"); 435298943Sluigi { 435398943Sluigi char *end; 435498943Sluigi uid_t uid; 435598943Sluigi struct passwd *pwd; 435698943Sluigi 435798943Sluigi cmd->opcode = O_UID; 435898943Sluigi uid = strtoul(*av, &end, 0); 435998943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 436098943Sluigi if (pwd == NULL) 436198943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 4362106504Smaxim cmd32->d[0] = pwd->pw_uid; 4363135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 436498943Sluigi ac--; av++; 436598943Sluigi } 436698943Sluigi break; 436798943Sluigi 436898943Sluigi case TOK_GID: 436998943Sluigi NEED1("gid requires argument"); 437098943Sluigi { 437198943Sluigi char *end; 437298943Sluigi gid_t gid; 437398943Sluigi struct group *grp; 437498943Sluigi 437598943Sluigi cmd->opcode = O_GID; 437698943Sluigi gid = strtoul(*av, &end, 0); 437798943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 437898943Sluigi if (grp == NULL) 437998943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 4380106504Smaxim cmd32->d[0] = grp->gr_gid; 4381135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 438298943Sluigi ac--; av++; 438398943Sluigi } 438498943Sluigi break; 438598943Sluigi 4386133600Scsjp case TOK_JAIL: 4387133600Scsjp NEED1("jail requires argument"); 4388133600Scsjp { 4389133600Scsjp char *end; 4390133600Scsjp int jid; 4391133600Scsjp 4392133600Scsjp cmd->opcode = O_JAIL; 4393133600Scsjp jid = (int)strtol(*av, &end, 0); 4394133600Scsjp if (jid < 0 || *end != '\0') 4395133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 4396135554Scsjp cmd32->d[0] = (uint32_t)jid; 4397135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 4398133600Scsjp ac--; av++; 4399133600Scsjp } 4400133600Scsjp break; 4401133600Scsjp 440298943Sluigi case TOK_ESTAB: 440398943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 440498943Sluigi break; 440598943Sluigi 440698943Sluigi case TOK_SETUP: 440798943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 440898943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 440998943Sluigi break; 441098943Sluigi 4411136075Sgreen case TOK_TCPDATALEN: 4412136075Sgreen NEED1("tcpdatalen requires length"); 4413136075Sgreen if (strpbrk(*av, "-,")) { 4414136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 4415136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 4416136075Sgreen } else 4417136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 4418136075Sgreen strtoul(*av, NULL, 0)); 4419136075Sgreen ac--; av++; 4420136075Sgreen break; 4421136075Sgreen 442298943Sluigi case TOK_TCPOPTS: 442398943Sluigi NEED1("missing argument for tcpoptions"); 442498943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 442598943Sluigi ac--; av++; 442698943Sluigi break; 442798943Sluigi 442898943Sluigi case TOK_TCPSEQ: 442998943Sluigi case TOK_TCPACK: 443098943Sluigi NEED1("tcpseq/tcpack requires argument"); 443198943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 443298943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 443398943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 443498943Sluigi ac--; av++; 443598943Sluigi break; 443698943Sluigi 443798943Sluigi case TOK_TCPWIN: 443898943Sluigi NEED1("tcpwin requires length"); 443998943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 444098943Sluigi htons(strtoul(*av, NULL, 0))); 444198943Sluigi ac--; av++; 444298943Sluigi break; 444398943Sluigi 444498943Sluigi case TOK_TCPFLAGS: 444598943Sluigi NEED1("missing argument for tcpflags"); 444698943Sluigi cmd->opcode = O_TCPFLAGS; 444798943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 444898943Sluigi ac--; av++; 444998943Sluigi break; 445098943Sluigi 445198943Sluigi case TOK_KEEPSTATE: 4452101641Sluigi if (open_par) 4453101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 4454101641Sluigi "of an or block"); 445599909Sluigi if (have_state) 4456101116Sluigi errx(EX_USAGE, "only one of keep-state " 445799909Sluigi "and limit is allowed"); 4458101116Sluigi have_state = cmd; 445998943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 446098943Sluigi break; 446198943Sluigi 446298943Sluigi case TOK_LIMIT: 4463101641Sluigi if (open_par) 4464101641Sluigi errx(EX_USAGE, "limit cannot be part " 4465101641Sluigi "of an or block"); 446699909Sluigi if (have_state) 4467101116Sluigi errx(EX_USAGE, "only one of keep-state " 446899909Sluigi "and limit is allowed"); 4469101641Sluigi NEED1("limit needs mask and # of connections"); 4470101116Sluigi have_state = cmd; 447198943Sluigi { 447298943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 447398943Sluigi 447498943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 447598943Sluigi cmd->opcode = O_LIMIT; 447698943Sluigi c->limit_mask = 0; 447798943Sluigi c->conn_limit = 0; 447898943Sluigi for (; ac >1 ;) { 447998943Sluigi int val; 448098943Sluigi 448198943Sluigi val = match_token(limit_masks, *av); 448298943Sluigi if (val <= 0) 448398943Sluigi break; 448498943Sluigi c->limit_mask |= val; 448598943Sluigi ac--; av++; 448698943Sluigi } 448798943Sluigi c->conn_limit = atoi(*av); 448898943Sluigi if (c->conn_limit == 0) 448998943Sluigi errx(EX_USAGE, "limit: limit must be >0"); 449098943Sluigi if (c->limit_mask == 0) 449198943Sluigi errx(EX_USAGE, "missing limit mask"); 449298943Sluigi ac--; av++; 449398943Sluigi } 449498943Sluigi break; 449598943Sluigi 4496102087Sluigi case TOK_PROTO: 4497102087Sluigi NEED1("missing protocol"); 4498145246Sbrooks if (add_proto(cmd, *av, &proto)) { 4499102087Sluigi ac--; av++; 4500102098Sluigi } else 4501116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 4502116438Smaxim *av); 4503102087Sluigi break; 4504106505Smaxim 4505102087Sluigi case TOK_SRCIP: 4506102087Sluigi NEED1("missing source IP"); 4507102087Sluigi if (add_srcip(cmd, *av)) { 4508102087Sluigi ac--; av++; 4509102087Sluigi } 4510102087Sluigi break; 4511102087Sluigi 4512102087Sluigi case TOK_DSTIP: 4513102087Sluigi NEED1("missing destination IP"); 4514102087Sluigi if (add_dstip(cmd, *av)) { 4515102087Sluigi ac--; av++; 4516102087Sluigi } 4517102087Sluigi break; 4518102087Sluigi 4519145246Sbrooks case TOK_SRCIP6: 4520145246Sbrooks NEED1("missing source IP6"); 4521145246Sbrooks if (add_srcip6(cmd, *av)) { 4522145246Sbrooks ac--; av++; 4523145246Sbrooks } 4524145246Sbrooks break; 4525145246Sbrooks 4526145246Sbrooks case TOK_DSTIP6: 4527145246Sbrooks NEED1("missing destination IP6"); 4528145246Sbrooks if (add_dstip6(cmd, *av)) { 4529145246Sbrooks ac--; av++; 4530145246Sbrooks } 4531145246Sbrooks break; 4532145246Sbrooks 4533102087Sluigi case TOK_SRCPORT: 4534102087Sluigi NEED1("missing source port"); 4535140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4536102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4537102087Sluigi ac--; av++; 4538102087Sluigi } else 4539102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 4540102087Sluigi break; 4541102087Sluigi 4542102087Sluigi case TOK_DSTPORT: 4543102087Sluigi NEED1("missing destination port"); 4544140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4545102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4546102087Sluigi ac--; av++; 4547102087Sluigi } else 4548102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 4549102087Sluigi *av); 4550102087Sluigi break; 4551102087Sluigi 4552102087Sluigi case TOK_MAC: 4553102087Sluigi if (add_mac(cmd, ac, av)) { 4554102087Sluigi ac -= 2; av += 2; 4555102087Sluigi } 4556102087Sluigi break; 4557102087Sluigi 4558102087Sluigi case TOK_MACTYPE: 4559102087Sluigi NEED1("missing mac type"); 4560102087Sluigi if (!add_mactype(cmd, ac, *av)) 4561116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 4562102087Sluigi ac--; av++; 4563102087Sluigi break; 4564102087Sluigi 4565112250Scjc case TOK_VERREVPATH: 4566112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 4567112250Scjc break; 4568116919Sluigi 4569128575Sandre case TOK_VERSRCREACH: 4570128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 4571128575Sandre break; 4572128575Sandre 4573133387Sandre case TOK_ANTISPOOF: 4574133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 4575133387Sandre break; 4576133387Sandre 4577117241Sluigi case TOK_IPSEC: 4578117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 4579117241Sluigi break; 4580117241Sluigi 4581145246Sbrooks case TOK_IPV6: 4582145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 4583145246Sbrooks break; 4584145246Sbrooks 4585146894Smlaier case TOK_IPV4: 4586146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4587146894Smlaier break; 4588146894Smlaier 4589145246Sbrooks case TOK_EXT6HDR: 4590145246Sbrooks fill_ext6hdr( cmd, *av ); 4591145246Sbrooks ac--; av++; 4592145246Sbrooks break; 4593145246Sbrooks 4594145246Sbrooks case TOK_FLOWID: 4595145246Sbrooks if (proto != IPPROTO_IPV6 ) 4596145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 4597145246Sbrooks "only for ipv6 protocol\n"); 4598145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 4599145246Sbrooks ac--; av++; 4600145246Sbrooks break; 4601145246Sbrooks 4602117469Sluigi case TOK_COMMENT: 4603117469Sluigi fill_comment(cmd, ac, av); 4604117469Sluigi av += ac; 4605117469Sluigi ac = 0; 4606117469Sluigi break; 4607117469Sluigi 460898943Sluigi default: 460998943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 461098943Sluigi } 461198943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 461298943Sluigi prev = cmd; 461398943Sluigi cmd = next_cmd(cmd); 461498943Sluigi } 461598943Sluigi } 461698943Sluigi 461798943Sluigidone: 461898943Sluigi /* 461998943Sluigi * Now copy stuff into the rule. 462098943Sluigi * If we have a keep-state option, the first instruction 462198943Sluigi * must be a PROBE_STATE (which is generated here). 462298943Sluigi * If we have a LOG option, it was stored as the first command, 462398943Sluigi * and now must be moved to the top of the action part. 462498943Sluigi */ 462598943Sluigi dst = (ipfw_insn *)rule->cmd; 462698943Sluigi 462798943Sluigi /* 4628107289Sluigi * First thing to write into the command stream is the match probability. 4629107289Sluigi */ 4630107289Sluigi if (match_prob != 1) { /* 1 means always match */ 4631107289Sluigi dst->opcode = O_PROB; 4632107289Sluigi dst->len = 2; 4633107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 4634107289Sluigi dst += dst->len; 4635107289Sluigi } 4636107289Sluigi 4637107289Sluigi /* 463898943Sluigi * generate O_PROBE_STATE if necessary 463998943Sluigi */ 4640101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 464198943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 464298943Sluigi dst = next_cmd(dst); 464398943Sluigi } 464498943Sluigi /* 4645136071Sgreen * copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ 464698943Sluigi */ 464798943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 464898943Sluigi i = F_LEN(src); 464998943Sluigi 4650101116Sluigi switch (src->opcode) { 4651101116Sluigi case O_LOG: 4652101116Sluigi case O_KEEP_STATE: 4653101116Sluigi case O_LIMIT: 4654136071Sgreen case O_ALTQ: 4655101116Sluigi break; 4656101116Sluigi default: 4657117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 465898943Sluigi dst += i; 465998943Sluigi } 466098943Sluigi } 466198943Sluigi 466298943Sluigi /* 4663101116Sluigi * put back the have_state command as last opcode 4664101116Sluigi */ 4665101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 4666101116Sluigi i = F_LEN(have_state); 4667117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 4668101116Sluigi dst += i; 4669101116Sluigi } 4670101116Sluigi /* 467198943Sluigi * start action section 467298943Sluigi */ 467398943Sluigi rule->act_ofs = dst - rule->cmd; 467498943Sluigi 467598943Sluigi /* 4676136071Sgreen * put back O_LOG, O_ALTQ if necessary 467798943Sluigi */ 4678136071Sgreen if (have_log) { 4679136071Sgreen i = F_LEN(have_log); 4680136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 468198943Sluigi dst += i; 468298943Sluigi } 4683136071Sgreen if (have_altq) { 4684136071Sgreen i = F_LEN(have_altq); 4685136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 4686136071Sgreen dst += i; 4687136071Sgreen } 468898943Sluigi /* 468998943Sluigi * copy all other actions 469098943Sluigi */ 469198943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 469298943Sluigi i = F_LEN(src); 4693117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 469498943Sluigi dst += i; 469598943Sluigi } 469698943Sluigi 4697117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 4698117469Sluigi i = (char *)dst - (char *)rule; 4699119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 470098943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 470198943Sluigi if (!do_quiet) 4702117469Sluigi show_ipfw(rule, 0, 0); 470398943Sluigi} 470498943Sluigi 470598943Sluigistatic void 4706117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 470798943Sluigi{ 470898943Sluigi int rulenum; 470998943Sluigi int failed = EX_OK; 4710117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 471198943Sluigi 471298943Sluigi av++; ac--; 471398943Sluigi 471498943Sluigi if (!ac) { 471598943Sluigi /* clear all entries */ 4716117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 4717117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 471898943Sluigi if (!do_quiet) 4719117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 4720117328Sluigi "Accounting cleared":"Logging counts reset"); 472198943Sluigi 472298943Sluigi return; 472398943Sluigi } 472498943Sluigi 472598943Sluigi while (ac) { 472698943Sluigi /* Rule number */ 472798943Sluigi if (isdigit(**av)) { 472898943Sluigi rulenum = atoi(*av); 472998943Sluigi av++; 473098943Sluigi ac--; 4731117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 4732117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 4733117328Sluigi rulenum, name); 473498943Sluigi failed = EX_UNAVAILABLE; 473598943Sluigi } else if (!do_quiet) 4736117328Sluigi printf("Entry %d %s.\n", rulenum, 4737117328Sluigi optname == IP_FW_ZERO ? 4738117328Sluigi "cleared" : "logging count reset"); 473998943Sluigi } else { 474098943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 474198943Sluigi } 474298943Sluigi } 474398943Sluigi if (failed != EX_OK) 474498943Sluigi exit(failed); 474598943Sluigi} 474698943Sluigi 474798943Sluigistatic void 4748117544Sluigiflush(int force) 474998943Sluigi{ 475098943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 475198943Sluigi 4752117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 475398943Sluigi int c; 475498943Sluigi 475598943Sluigi printf("Are you sure? [yn] "); 475698943Sluigi fflush(stdout); 475798943Sluigi do { 475898943Sluigi c = toupper(getc(stdin)); 475998943Sluigi while (c != '\n' && getc(stdin) != '\n') 476098943Sluigi if (feof(stdin)) 476198943Sluigi return; /* and do not flush */ 476298943Sluigi } while (c != 'Y' && c != 'N'); 476398943Sluigi printf("\n"); 476498943Sluigi if (c == 'N') /* user said no */ 476598943Sluigi return; 476698943Sluigi } 4767117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 476898943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 476998943Sluigi do_pipe ? "DUMMYNET" : "FW"); 477098943Sluigi if (!do_quiet) 477198943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 477298943Sluigi} 477398943Sluigi 4774117469Sluigi/* 4775117544Sluigi * Free a the (locally allocated) copy of command line arguments. 4776117469Sluigi */ 4777117544Sluigistatic void 4778117544Sluigifree_args(int ac, char **av) 4779117544Sluigi{ 4780117544Sluigi int i; 4781117544Sluigi 4782117544Sluigi for (i=0; i < ac; i++) 4783117544Sluigi free(av[i]); 4784117544Sluigi free(av); 4785117544Sluigi} 4786117544Sluigi 4787117544Sluigi/* 4788130281Sru * This one handles all table-related commands 4789130281Sru * ipfw table N add addr[/masklen] [value] 4790130281Sru * ipfw table N delete addr[/masklen] 4791130281Sru * ipfw table N flush 4792130281Sru * ipfw table N list 4793130281Sru */ 4794130281Srustatic void 4795130281Srutable_handler(int ac, char *av[]) 4796130281Sru{ 4797130281Sru ipfw_table_entry ent; 4798130281Sru ipfw_table *tbl; 4799130281Sru int do_add; 4800130281Sru char *p; 4801130281Sru socklen_t l; 4802130281Sru uint32_t a; 4803130281Sru 4804130281Sru ac--; av++; 4805130281Sru if (ac && isdigit(**av)) { 4806130281Sru ent.tbl = atoi(*av); 4807130281Sru ac--; av++; 4808130281Sru } else 4809130281Sru errx(EX_USAGE, "table number required"); 4810130281Sru NEED1("table needs command"); 4811140271Sbrooks if (_substrcmp(*av, "add") == 0 || 4812140271Sbrooks _substrcmp(*av, "delete") == 0) { 4813130281Sru do_add = **av == 'a'; 4814130281Sru ac--; av++; 4815130281Sru if (!ac) 4816130281Sru errx(EX_USAGE, "IP address required"); 4817130281Sru p = strchr(*av, '/'); 4818130281Sru if (p) { 4819130281Sru *p++ = '\0'; 4820130281Sru ent.masklen = atoi(p); 4821130281Sru if (ent.masklen > 32) 4822130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 4823130281Sru } else 4824130281Sru ent.masklen = 32; 4825130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 4826130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 4827130281Sru ac--; av++; 4828130281Sru if (do_add && ac) 4829130281Sru ent.value = strtoul(*av, NULL, 0); 4830130281Sru else 4831130281Sru ent.value = 0; 4832130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 4833157335Sjulian &ent, sizeof(ent)) < 0) { 4834155639Sjulian /* If running silent, don't bomb out on these errors. */ 4835155639Sjulian if (!(do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 4836155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 4837155639Sjulian do_add ? "ADD" : "DEL"); 4838155639Sjulian /* In silent mode, react to a failed add by deleting */ 4839157332Sjulian if (do_add) { 4840155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 4841155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 4842155639Sjulian &ent, sizeof(ent)) < 0) 4843155639Sjulian err(EX_OSERR, 4844155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 4845157332Sjulian } 4846157335Sjulian } 4847140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 4848130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 4849130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 4850140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 4851130281Sru a = ent.tbl; 4852130281Sru l = sizeof(a); 4853130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 4854130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 4855130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 4856130281Sru tbl = malloc(l); 4857130281Sru if (tbl == NULL) 4858130281Sru err(EX_OSERR, "malloc"); 4859130281Sru tbl->tbl = ent.tbl; 4860130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 4861130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 4862130281Sru for (a = 0; a < tbl->cnt; a++) { 4863130281Sru printf("%s/%u %u\n", 4864130281Sru inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 4865130281Sru tbl->ent[a].masklen, tbl->ent[a].value); 4866130281Sru } 4867130281Sru } else 4868130281Sru errx(EX_USAGE, "invalid table command %s", *av); 4869130281Sru} 4870130281Sru 4871130281Sru/* 4872117544Sluigi * Called with the arguments (excluding program name). 4873117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 4874117544Sluigi */ 487598943Sluigistatic int 4876117328Sluigiipfw_main(int oldac, char **oldav) 487798943Sluigi{ 4878117469Sluigi int ch, ac, save_ac; 4879117469Sluigi char **av, **save_av; 4880117469Sluigi int do_acct = 0; /* Show packet/byte count */ 4881117469Sluigi 4882117469Sluigi#define WHITESP " \t\f\v\n\r" 4883117544Sluigi if (oldac == 0) 4884117544Sluigi return 1; 4885117544Sluigi else if (oldac == 1) { 4886117328Sluigi /* 4887117328Sluigi * If we are called with a single string, try to split it into 4888117328Sluigi * arguments for subsequent parsing. 4889117328Sluigi * But first, remove spaces after a ',', by copying the string 4890117328Sluigi * in-place. 4891117328Sluigi */ 4892117469Sluigi char *arg = oldav[0]; /* The string... */ 4893117328Sluigi int l = strlen(arg); 4894117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 4895117328Sluigi int i, j; 4896117469Sluigi for (i = j = 0; i < l; i++) { 4897117469Sluigi if (arg[i] == '#') /* comment marker */ 4898117469Sluigi break; 4899117328Sluigi if (copy) { 4900117328Sluigi arg[j++] = arg[i]; 4901117469Sluigi copy = !index("," WHITESP, arg[i]); 4902117328Sluigi } else { 4903117469Sluigi copy = !index(WHITESP, arg[i]); 4904117328Sluigi if (copy) 4905117328Sluigi arg[j++] = arg[i]; 4906117328Sluigi } 4907117469Sluigi } 4908117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 4909117328Sluigi j--; 4910117328Sluigi l = j; /* the new argument length */ 4911117328Sluigi arg[j++] = '\0'; 4912117469Sluigi if (l == 0) /* empty string! */ 4913117544Sluigi return 1; 4914117328Sluigi 4915117328Sluigi /* 4916117328Sluigi * First, count number of arguments. Because of the previous 4917117469Sluigi * processing, this is just the number of blanks plus 1. 4918117328Sluigi */ 4919117469Sluigi for (i = 0, ac = 1; i < l; i++) 4920117469Sluigi if (index(WHITESP, arg[i]) != NULL) 4921117328Sluigi ac++; 4922117328Sluigi 4923117328Sluigi av = calloc(ac, sizeof(char *)); 4924117328Sluigi 4925117328Sluigi /* 4926117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 4927117328Sluigi * j is the initial character, i is the one past the end. 4928117328Sluigi */ 4929117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 4930117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 4931117328Sluigi if (i == l-1) 4932117328Sluigi i++; 4933117328Sluigi av[ac] = calloc(i-j+1, 1); 4934117328Sluigi bcopy(arg+j, av[ac], i-j); 4935117328Sluigi ac++; 4936117328Sluigi j = i + 1; 4937117328Sluigi } 4938117328Sluigi } else { 4939117328Sluigi /* 4940117328Sluigi * If an argument ends with ',' join with the next one. 4941117328Sluigi */ 4942117328Sluigi int first, i, l; 4943117328Sluigi 4944117328Sluigi av = calloc(oldac, sizeof(char *)); 4945117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 4946117328Sluigi char *arg = oldav[i]; 4947117328Sluigi int k = strlen(arg); 4948117328Sluigi 4949117328Sluigi l += k; 4950117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 4951117328Sluigi /* Time to copy. */ 4952117328Sluigi av[ac] = calloc(l+1, 1); 4953117328Sluigi for (l=0; first <= i; first++) { 4954117328Sluigi strcat(av[ac]+l, oldav[first]); 4955117328Sluigi l += strlen(oldav[first]); 4956117328Sluigi } 4957117328Sluigi ac++; 4958117328Sluigi l = 0; 4959117328Sluigi first = i+1; 4960117328Sluigi } 4961117328Sluigi } 4962117328Sluigi } 4963117328Sluigi 496498943Sluigi /* Set the force flag for non-interactive processes */ 4965123804Smaxim if (!do_force) 4966123804Smaxim do_force = !isatty(STDIN_FILENO); 496798943Sluigi 4968117469Sluigi /* Save arguments for final freeing of memory. */ 4969117469Sluigi save_ac = ac; 4970117469Sluigi save_av = av; 4971117469Sluigi 4972117469Sluigi optind = optreset = 0; 4973123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 497498943Sluigi switch (ch) { 497598943Sluigi case 'a': 497698943Sluigi do_acct = 1; 497798943Sluigi break; 4978117328Sluigi 4979123495Sluigi case 'b': 4980123495Sluigi comment_only = 1; 4981123495Sluigi do_compact = 1; 4982123495Sluigi break; 4983123495Sluigi 4984102098Sluigi case 'c': 4985102098Sluigi do_compact = 1; 4986102098Sluigi break; 4987117328Sluigi 498898943Sluigi case 'd': 498998943Sluigi do_dynamic = 1; 499098943Sluigi break; 4991117328Sluigi 499298943Sluigi case 'e': 499398943Sluigi do_expired = 1; 499498943Sluigi break; 4995117328Sluigi 499698943Sluigi case 'f': 499798943Sluigi do_force = 1; 499898943Sluigi break; 4999117328Sluigi 5000117328Sluigi case 'h': /* help */ 5001117544Sluigi free_args(save_ac, save_av); 5002117328Sluigi help(); 5003117328Sluigi break; /* NOTREACHED */ 5004117328Sluigi 5005117328Sluigi case 'n': 5006117328Sluigi test_only = 1; 5007117328Sluigi break; 5008117328Sluigi 500998943Sluigi case 'N': 501098943Sluigi do_resolv = 1; 501198943Sluigi break; 5012117328Sluigi 501398943Sluigi case 'q': 501498943Sluigi do_quiet = 1; 501598943Sluigi break; 5016117328Sluigi 5017117328Sluigi case 's': /* sort */ 5018117328Sluigi do_sort = atoi(optarg); 5019117328Sluigi break; 5020117328Sluigi 5021101628Sluigi case 'S': 5022101628Sluigi show_sets = 1; 5023101628Sluigi break; 5024117328Sluigi 502598943Sluigi case 't': 502698943Sluigi do_time = 1; 502798943Sluigi break; 5028117328Sluigi 5029117472Sluigi case 'T': 5030117472Sluigi do_time = 2; /* numeric timestamp */ 5031117472Sluigi break; 5032117472Sluigi 503398943Sluigi case 'v': /* verbose */ 5034117328Sluigi verbose = 1; 503598943Sluigi break; 5036117328Sluigi 503798943Sluigi default: 5038117544Sluigi free_args(save_ac, save_av); 5039117544Sluigi return 1; 504098943Sluigi } 504198943Sluigi 504298943Sluigi ac -= optind; 504398943Sluigi av += optind; 504498943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 504598943Sluigi 504698943Sluigi /* 5047117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 5048117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 5049117544Sluigi * In case, swap first and second argument to get the normal form. 5050117544Sluigi */ 5051117544Sluigi if (ac > 1 && isdigit(*av[0])) { 5052117544Sluigi char *p = av[0]; 5053117544Sluigi 5054117544Sluigi av[0] = av[1]; 5055117544Sluigi av[1] = p; 5056117544Sluigi } 5057117544Sluigi 5058117544Sluigi /* 505998943Sluigi * optional: pipe or queue 506098943Sluigi */ 5061117821Smaxim do_pipe = 0; 5062140271Sbrooks if (_substrcmp(*av, "pipe") == 0) 506398943Sluigi do_pipe = 1; 5064140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 506598943Sluigi do_pipe = 2; 5066117544Sluigi if (do_pipe) { 506798943Sluigi ac--; 506898943Sluigi av++; 506998943Sluigi } 507098943Sluigi NEED1("missing command"); 507198943Sluigi 507298943Sluigi /* 5073117328Sluigi * For pipes and queues we normally say 'pipe NN config' 507498943Sluigi * but the code is easier to parse as 'pipe config NN' 507598943Sluigi * so we swap the two arguments. 507698943Sluigi */ 5077117469Sluigi if (do_pipe > 0 && ac > 1 && isdigit(*av[0])) { 507898943Sluigi char *p = av[0]; 5079117544Sluigi 508098943Sluigi av[0] = av[1]; 508198943Sluigi av[1] = p; 508298943Sluigi } 5083117328Sluigi 5084140271Sbrooks if (_substrcmp(*av, "add") == 0) 508598943Sluigi add(ac, av); 5086140271Sbrooks else if (do_pipe && _substrcmp(*av, "config") == 0) 508798943Sluigi config_pipe(ac, av); 5088140271Sbrooks else if (_substrcmp(*av, "delete") == 0) 508998943Sluigi delete(ac, av); 5090140271Sbrooks else if (_substrcmp(*av, "flush") == 0) 5091117544Sluigi flush(do_force); 5092140271Sbrooks else if (_substrcmp(*av, "zero") == 0) 5093117328Sluigi zero(ac, av, IP_FW_ZERO); 5094140271Sbrooks else if (_substrcmp(*av, "resetlog") == 0) 5095117328Sluigi zero(ac, av, IP_FW_RESETLOG); 5096140271Sbrooks else if (_substrcmp(*av, "print") == 0 || 5097140271Sbrooks _substrcmp(*av, "list") == 0) 5098117469Sluigi list(ac, av, do_acct); 5099140271Sbrooks else if (_substrcmp(*av, "set") == 0) 5100101978Sluigi sets_handler(ac, av); 5101140271Sbrooks else if (_substrcmp(*av, "table") == 0) 5102130281Sru table_handler(ac, av); 5103140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 5104109126Sdillon sysctl_handler(ac, av, 1); 5105140271Sbrooks else if (_substrcmp(*av, "disable") == 0) 5106109126Sdillon sysctl_handler(ac, av, 0); 5107140271Sbrooks else if (_substrcmp(*av, "show") == 0) 5108117469Sluigi list(ac, av, 1 /* show counters */); 5109117469Sluigi else 511098943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 5111117469Sluigi 5112117469Sluigi /* Free memory allocated in the argument parsing. */ 5113117544Sluigi free_args(save_ac, save_av); 511498943Sluigi return 0; 511598943Sluigi} 511698943Sluigi 511798943Sluigi 511898943Sluigistatic void 5119106505Smaximipfw_readfile(int ac, char *av[]) 512098943Sluigi{ 512198943Sluigi#define MAX_ARGS 32 512298943Sluigi char buf[BUFSIZ]; 5123117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 5124117469Sluigi int c, lineno=0; 512598943Sluigi FILE *f = NULL; 512698943Sluigi pid_t preproc = 0; 512798943Sluigi 5128117469Sluigi filename = av[ac-1]; 5129117469Sluigi 5130123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 513198943Sluigi switch(c) { 5132117469Sluigi case 'c': 5133117469Sluigi do_compact = 1; 5134117469Sluigi break; 5135117469Sluigi 5136123804Smaxim case 'f': 5137123804Smaxim do_force = 1; 5138123804Smaxim break; 5139123804Smaxim 5140117469Sluigi case 'N': 5141117469Sluigi do_resolv = 1; 5142117469Sluigi break; 5143117469Sluigi 5144117328Sluigi case 'n': 5145117328Sluigi test_only = 1; 5146117328Sluigi break; 5147117328Sluigi 514898943Sluigi case 'p': 514998943Sluigi cmd = optarg; 5150117469Sluigi /* 5151117469Sluigi * Skip previous args and delete last one, so we 5152117469Sluigi * pass all but the last argument to the preprocessor 5153117469Sluigi * via av[optind-1] 5154117469Sluigi */ 5155117469Sluigi av += optind - 1; 5156117469Sluigi ac -= optind - 1; 5157117469Sluigi av[ac-1] = NULL; 5158117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 515998943Sluigi break; 516098943Sluigi 516198943Sluigi case 'q': 5162117469Sluigi do_quiet = 1; 516398943Sluigi break; 516498943Sluigi 5165117469Sluigi case 'S': 5166117469Sluigi show_sets = 1; 5167117469Sluigi break; 5168117469Sluigi 516998943Sluigi default: 517098943Sluigi errx(EX_USAGE, "bad arguments, for usage" 517198943Sluigi " summary ``ipfw''"); 517298943Sluigi } 517398943Sluigi 5174117469Sluigi if (cmd != NULL) 5175108231Skbyanc break; 5176108231Skbyanc } 5177108231Skbyanc 5178117469Sluigi if (cmd == NULL && ac != optind + 1) { 5179117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 5180117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 5181108231Skbyanc } 5182108231Skbyanc 5183117469Sluigi if ((f = fopen(filename, "r")) == NULL) 5184117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 518598943Sluigi 5186117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 518798943Sluigi int pipedes[2]; 518898943Sluigi 518998943Sluigi if (pipe(pipedes) == -1) 519098943Sluigi err(EX_OSERR, "cannot create pipe"); 519198943Sluigi 5192117469Sluigi preproc = fork(); 5193117469Sluigi if (preproc == -1) 519498943Sluigi err(EX_OSERR, "cannot fork"); 519598943Sluigi 5196117577Sluigi if (preproc == 0) { 5197117469Sluigi /* 5198117469Sluigi * Child, will run the preprocessor with the 5199117469Sluigi * file on stdin and the pipe on stdout. 5200117469Sluigi */ 520198943Sluigi if (dup2(fileno(f), 0) == -1 520298943Sluigi || dup2(pipedes[1], 1) == -1) 520398943Sluigi err(EX_OSERR, "dup2()"); 520498943Sluigi fclose(f); 520598943Sluigi close(pipedes[1]); 520698943Sluigi close(pipedes[0]); 5207117469Sluigi execvp(cmd, av); 520898943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 5209117469Sluigi } else { /* parent, will reopen f as the pipe */ 521098943Sluigi fclose(f); 521198943Sluigi close(pipedes[1]); 521298943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 521398943Sluigi int savederrno = errno; 521498943Sluigi 521598943Sluigi (void)kill(preproc, SIGTERM); 521698943Sluigi errno = savederrno; 521798943Sluigi err(EX_OSERR, "fdopen()"); 521898943Sluigi } 521998943Sluigi } 522098943Sluigi } 522198943Sluigi 5222117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 5223117469Sluigi char linename[10]; 5224117469Sluigi char *args[1]; 5225117469Sluigi 522698943Sluigi lineno++; 522798943Sluigi sprintf(linename, "Line %d", lineno); 5228117328Sluigi setprogname(linename); /* XXX */ 5229117469Sluigi args[0] = buf; 5230117469Sluigi ipfw_main(1, args); 523198943Sluigi } 523298943Sluigi fclose(f); 5233117469Sluigi if (cmd != NULL) { 5234117469Sluigi int status; 5235117469Sluigi 523698943Sluigi if (waitpid(preproc, &status, 0) == -1) 523798943Sluigi errx(EX_OSERR, "waitpid()"); 523898943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 523998943Sluigi errx(EX_UNAVAILABLE, 524098943Sluigi "preprocessor exited with status %d", 524198943Sluigi WEXITSTATUS(status)); 524298943Sluigi else if (WIFSIGNALED(status)) 524398943Sluigi errx(EX_UNAVAILABLE, 524498943Sluigi "preprocessor exited with signal %d", 524598943Sluigi WTERMSIG(status)); 524698943Sluigi } 524798943Sluigi} 524898943Sluigi 524998943Sluigiint 525098943Sluigimain(int ac, char *av[]) 525198943Sluigi{ 525298943Sluigi /* 525398943Sluigi * If the last argument is an absolute pathname, interpret it 525498943Sluigi * as a file to be preprocessed. 525598943Sluigi */ 525698943Sluigi 525798943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 525898943Sluigi ipfw_readfile(ac, av); 5259117544Sluigi else { 5260117544Sluigi if (ipfw_main(ac-1, av+1)) 5261117544Sluigi show_usage(); 5262117544Sluigi } 526398943Sluigi return EX_OK; 526498943Sluigi} 5265