ipfw2.c revision 146894
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 146894 2005-06-03 01:10:28Z 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, 28098943Sluigi}; 28198943Sluigi 28298943Sluigistruct _s_x dummynet_params[] = { 28398943Sluigi { "plr", TOK_PLR }, 284101978Sluigi { "noerror", TOK_NOERROR }, 28598943Sluigi { "buckets", TOK_BUCKETS }, 28698943Sluigi { "dst-ip", TOK_DSTIP }, 28798943Sluigi { "src-ip", TOK_SRCIP }, 28898943Sluigi { "dst-port", TOK_DSTPORT }, 28998943Sluigi { "src-port", TOK_SRCPORT }, 29098943Sluigi { "proto", TOK_PROTO }, 29198943Sluigi { "weight", TOK_WEIGHT }, 29298943Sluigi { "all", TOK_ALL }, 29398943Sluigi { "mask", TOK_MASK }, 29498943Sluigi { "droptail", TOK_DROPTAIL }, 29598943Sluigi { "red", TOK_RED }, 29698943Sluigi { "gred", TOK_GRED }, 29798943Sluigi { "bw", TOK_BW }, 29898943Sluigi { "bandwidth", TOK_BW }, 29998943Sluigi { "delay", TOK_DELAY }, 30099475Sluigi { "pipe", TOK_PIPE }, 30198943Sluigi { "queue", TOK_QUEUE }, 302145246Sbrooks { "flow-id", TOK_FLOWID}, 303145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 304145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 305145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 306145246Sbrooks { "src-ip6", TOK_SRCIP6}, 30798943Sluigi { "dummynet-params", TOK_NULL }, 308117328Sluigi { NULL, 0 } /* terminator */ 30998943Sluigi}; 31098943Sluigi 31198943Sluigistruct _s_x rule_actions[] = { 31298943Sluigi { "accept", TOK_ACCEPT }, 31398943Sluigi { "pass", TOK_ACCEPT }, 31498943Sluigi { "allow", TOK_ACCEPT }, 31598943Sluigi { "permit", TOK_ACCEPT }, 31698943Sluigi { "count", TOK_COUNT }, 31798943Sluigi { "pipe", TOK_PIPE }, 31898943Sluigi { "queue", TOK_QUEUE }, 31998943Sluigi { "divert", TOK_DIVERT }, 32098943Sluigi { "tee", TOK_TEE }, 321141351Sglebius { "netgraph", TOK_NETGRAPH }, 322141351Sglebius { "ngtee", TOK_NGTEE }, 32398943Sluigi { "fwd", TOK_FORWARD }, 32498943Sluigi { "forward", TOK_FORWARD }, 32598943Sluigi { "skipto", TOK_SKIPTO }, 32698943Sluigi { "deny", TOK_DENY }, 32798943Sluigi { "drop", TOK_DENY }, 32898943Sluigi { "reject", TOK_REJECT }, 32998943Sluigi { "reset", TOK_RESET }, 33099475Sluigi { "unreach", TOK_UNREACH }, 33198943Sluigi { "check-state", TOK_CHECKSTATE }, 332117469Sluigi { "//", TOK_COMMENT }, 333117328Sluigi { NULL, 0 } /* terminator */ 33498943Sluigi}; 33598943Sluigi 336136071Sgreenstruct _s_x rule_action_params[] = { 337136071Sgreen { "altq", TOK_ALTQ }, 338136071Sgreen { "log", TOK_LOG }, 339136071Sgreen { NULL, 0 } /* terminator */ 340136071Sgreen}; 341136071Sgreen 34298943Sluigistruct _s_x rule_options[] = { 34398943Sluigi { "uid", TOK_UID }, 34498943Sluigi { "gid", TOK_GID }, 345133600Scsjp { "jail", TOK_JAIL }, 34698943Sluigi { "in", TOK_IN }, 34798943Sluigi { "limit", TOK_LIMIT }, 34898943Sluigi { "keep-state", TOK_KEEPSTATE }, 34998943Sluigi { "bridged", TOK_LAYER2 }, 35098943Sluigi { "layer2", TOK_LAYER2 }, 35198943Sluigi { "out", TOK_OUT }, 352136073Sgreen { "diverted", TOK_DIVERTED }, 353136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 354136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 35598943Sluigi { "xmit", TOK_XMIT }, 35698943Sluigi { "recv", TOK_RECV }, 35798943Sluigi { "via", TOK_VIA }, 35898943Sluigi { "fragment", TOK_FRAG }, 35998943Sluigi { "frag", TOK_FRAG }, 36098943Sluigi { "ipoptions", TOK_IPOPTS }, 36198943Sluigi { "ipopts", TOK_IPOPTS }, 36298943Sluigi { "iplen", TOK_IPLEN }, 36398943Sluigi { "ipid", TOK_IPID }, 36498943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 36598943Sluigi { "iptos", TOK_IPTOS }, 36698943Sluigi { "ipttl", TOK_IPTTL }, 36798943Sluigi { "ipversion", TOK_IPVER }, 36898943Sluigi { "ipver", TOK_IPVER }, 36998943Sluigi { "estab", TOK_ESTAB }, 37098943Sluigi { "established", TOK_ESTAB }, 37198943Sluigi { "setup", TOK_SETUP }, 372136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 37398943Sluigi { "tcpflags", TOK_TCPFLAGS }, 37498943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 37598943Sluigi { "tcpoptions", TOK_TCPOPTS }, 37698943Sluigi { "tcpopts", TOK_TCPOPTS }, 37798943Sluigi { "tcpseq", TOK_TCPSEQ }, 37898943Sluigi { "tcpack", TOK_TCPACK }, 37998943Sluigi { "tcpwin", TOK_TCPWIN }, 38099909Sluigi { "icmptype", TOK_ICMPTYPES }, 38198943Sluigi { "icmptypes", TOK_ICMPTYPES }, 382102087Sluigi { "dst-ip", TOK_DSTIP }, 383102087Sluigi { "src-ip", TOK_SRCIP }, 384102087Sluigi { "dst-port", TOK_DSTPORT }, 385102087Sluigi { "src-port", TOK_SRCPORT }, 386102087Sluigi { "proto", TOK_PROTO }, 387102087Sluigi { "MAC", TOK_MAC }, 388102087Sluigi { "mac", TOK_MAC }, 389102087Sluigi { "mac-type", TOK_MACTYPE }, 390112250Scjc { "verrevpath", TOK_VERREVPATH }, 391128575Sandre { "versrcreach", TOK_VERSRCREACH }, 392133387Sandre { "antispoof", TOK_ANTISPOOF }, 393117241Sluigi { "ipsec", TOK_IPSEC }, 394145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 395145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 396145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 397145246Sbrooks { "flow-id", TOK_FLOWID}, 398145246Sbrooks { "ipv6", TOK_IPV6}, 399145246Sbrooks { "ip6", TOK_IPV6}, 400146894Smlaier { "ipv4", TOK_IPV4}, 401146894Smlaier { "ip4", TOK_IPV4}, 402145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 403145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 404145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 405145246Sbrooks { "src-ip6", TOK_SRCIP6}, 406117469Sluigi { "//", TOK_COMMENT }, 40798943Sluigi 40898943Sluigi { "not", TOK_NOT }, /* pseudo option */ 40998943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 41098943Sluigi { "or", TOK_OR }, /* pseudo option */ 41198943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 412101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 413101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 414101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 415101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 416117328Sluigi { NULL, 0 } /* terminator */ 41798943Sluigi}; 41898943Sluigi 419117328Sluigistatic __inline uint64_t 420117328Sluigialign_uint64(uint64_t *pll) { 421117328Sluigi uint64_t ret; 422115793Sticso 423115793Sticso bcopy (pll, &ret, sizeof(ret)); 424115793Sticso return ret; 425129389Sstefanf} 426115793Sticso 427117328Sluigi/* 428117328Sluigi * conditionally runs the command. 429117328Sluigi */ 430117469Sluigistatic int 431119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 432117328Sluigi{ 433117328Sluigi static int s = -1; /* the socket */ 434117328Sluigi int i; 435117577Sluigi 436117328Sluigi if (test_only) 437117328Sluigi return 0; 438117328Sluigi 439117328Sluigi if (s == -1) 440117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 441117328Sluigi if (s < 0) 442117328Sluigi err(EX_UNAVAILABLE, "socket"); 443117328Sluigi 444117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 445130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 446130281Sru optname == IP_FW_TABLE_GETSIZE) 447117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 448117328Sluigi (socklen_t *)optlen); 449117328Sluigi else 450117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 451117328Sluigi return i; 452117328Sluigi} 453117328Sluigi 45498943Sluigi/** 45598943Sluigi * match_token takes a table and a string, returns the value associated 456117328Sluigi * with the string (-1 in case of failure). 45798943Sluigi */ 45898943Sluigistatic int 45998943Sluigimatch_token(struct _s_x *table, char *string) 46098943Sluigi{ 46198943Sluigi struct _s_x *pt; 462117469Sluigi uint i = strlen(string); 46398943Sluigi 46498943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 46598943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 46698943Sluigi return pt->x; 46798943Sluigi return -1; 468129389Sstefanf} 46998943Sluigi 470117328Sluigi/** 471117328Sluigi * match_value takes a table and a value, returns the string associated 472117328Sluigi * with the value (NULL in case of failure). 473117328Sluigi */ 474117469Sluigistatic char const * 475117469Sluigimatch_value(struct _s_x *p, int value) 47698943Sluigi{ 47798943Sluigi for (; p->s != NULL; p++) 47898943Sluigi if (p->x == value) 47998943Sluigi return p->s; 48098943Sluigi return NULL; 48198943Sluigi} 48298943Sluigi 48398943Sluigi/* 484140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 485140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 486140271Sbrooks * of the second. A warning is printed to stderr in the case that the 487140271Sbrooks * first string is a sub-string of the second. 488140271Sbrooks * 489140271Sbrooks * This function will be removed in the future through the usual 490140271Sbrooks * deprecation process. 491140271Sbrooks */ 492140271Sbrooksstatic int 493140271Sbrooks_substrcmp(const char *str1, const char* str2) 494140271Sbrooks{ 495140271Sbrooks 496140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 497140271Sbrooks return 1; 498140271Sbrooks 499140271Sbrooks if (strlen(str1) != strlen(str2)) 500140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 501140271Sbrooks str1, str2); 502140271Sbrooks return 0; 503140271Sbrooks} 504140271Sbrooks 505140271Sbrooks/* 506140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 507140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 508140271Sbrooks * of the first. A warning is printed to stderr in the case that the 509140271Sbrooks * first string does not match the third. 510140271Sbrooks * 511140271Sbrooks * This function exists to warn about the bizzare construction 512140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 513140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 514140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 515140271Sbrooks * other string beginning with "by". 516140271Sbrooks * 517140271Sbrooks * This function will be removed in the future through the usual 518140271Sbrooks * deprecation process. 519140271Sbrooks */ 520140271Sbrooksstatic int 521140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 522140271Sbrooks{ 523140271Sbrooks 524140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 525140271Sbrooks return 1; 526140271Sbrooks 527140271Sbrooks if (strcmp(str1, str3) != 0) 528140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 529140271Sbrooks str1, str3); 530140271Sbrooks return 0; 531140271Sbrooks} 532140271Sbrooks 533140271Sbrooks/* 53498943Sluigi * prints one port, symbolic or numeric 53598943Sluigi */ 53698943Sluigistatic void 537117328Sluigiprint_port(int proto, uint16_t port) 53898943Sluigi{ 53998943Sluigi 54098943Sluigi if (proto == IPPROTO_ETHERTYPE) { 541117469Sluigi char const *s; 54298943Sluigi 54398943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 54498943Sluigi printf("%s", s); 54598943Sluigi else 54698943Sluigi printf("0x%04x", port); 54798943Sluigi } else { 54898943Sluigi struct servent *se = NULL; 54998943Sluigi if (do_resolv) { 55098943Sluigi struct protoent *pe = getprotobynumber(proto); 55198943Sluigi 55298943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 55398943Sluigi } 55498943Sluigi if (se) 55598943Sluigi printf("%s", se->s_name); 55698943Sluigi else 55798943Sluigi printf("%d", port); 55898943Sluigi } 55998943Sluigi} 56098943Sluigi 561117328Sluigistruct _s_x _port_name[] = { 562117328Sluigi {"dst-port", O_IP_DSTPORT}, 563117328Sluigi {"src-port", O_IP_SRCPORT}, 564117328Sluigi {"ipid", O_IPID}, 565117328Sluigi {"iplen", O_IPLEN}, 566117328Sluigi {"ipttl", O_IPTTL}, 567117328Sluigi {"mac-type", O_MAC_TYPE}, 568136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 569117328Sluigi {NULL, 0} 570117328Sluigi}; 571117328Sluigi 57298943Sluigi/* 573117328Sluigi * Print the values in a list 16-bit items of the types above. 57498943Sluigi * XXX todo: add support for mask. 57598943Sluigi */ 57698943Sluigistatic void 577102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 57898943Sluigi{ 579117328Sluigi uint16_t *p = cmd->ports; 58098943Sluigi int i; 581117469Sluigi char const *sep; 58298943Sluigi 58398943Sluigi if (cmd->o.len & F_NOT) 58498943Sluigi printf(" not"); 585116690Sluigi if (opcode != 0) { 586117328Sluigi sep = match_value(_port_name, opcode); 587117328Sluigi if (sep == NULL) 588116690Sluigi sep = "???"; 589116690Sluigi printf (" %s", sep); 590116690Sluigi } 591116690Sluigi sep = " "; 59298943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 59398943Sluigi printf(sep); 59498943Sluigi print_port(proto, p[0]); 59598943Sluigi if (p[0] != p[1]) { 59698943Sluigi printf("-"); 59798943Sluigi print_port(proto, p[1]); 59898943Sluigi } 59998943Sluigi sep = ","; 60098943Sluigi } 60198943Sluigi} 60298943Sluigi 60398943Sluigi/* 60498943Sluigi * Like strtol, but also translates service names into port numbers 60598943Sluigi * for some protocols. 60698943Sluigi * In particular: 60798943Sluigi * proto == -1 disables the protocol check; 60898943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 60998943Sluigi * proto == <some value in /etc/protocols> matches the values there. 610101628Sluigi * Returns *end == s in case the parameter is not found. 61198943Sluigi */ 61298943Sluigistatic int 61398943Sluigistrtoport(char *s, char **end, int base, int proto) 61498943Sluigi{ 615101628Sluigi char *p, *buf; 616101628Sluigi char *s1; 61798943Sluigi int i; 61898943Sluigi 619101628Sluigi *end = s; /* default - not found */ 620117577Sluigi if (*s == '\0') 621101628Sluigi return 0; /* not found */ 622106505Smaxim 62398943Sluigi if (isdigit(*s)) 62498943Sluigi return strtol(s, end, base); 62598943Sluigi 62698943Sluigi /* 627101628Sluigi * find separator. '\\' escapes the next char. 62898943Sluigi */ 629101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 630101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 631101628Sluigi s1++; 63298943Sluigi 633101628Sluigi buf = malloc(s1 - s + 1); 634101628Sluigi if (buf == NULL) 635101628Sluigi return 0; 636101628Sluigi 637101628Sluigi /* 638101628Sluigi * copy into a buffer skipping backslashes 639101628Sluigi */ 640101628Sluigi for (p = s, i = 0; p != s1 ; p++) 641117577Sluigi if (*p != '\\') 642101628Sluigi buf[i++] = *p; 643101628Sluigi buf[i++] = '\0'; 644101628Sluigi 64598943Sluigi if (proto == IPPROTO_ETHERTYPE) { 646101628Sluigi i = match_token(ether_types, buf); 647101628Sluigi free(buf); 648101628Sluigi if (i != -1) { /* found */ 64998943Sluigi *end = s1; 65098943Sluigi return i; 65198943Sluigi } 65298943Sluigi } else { 65398943Sluigi struct protoent *pe = NULL; 65498943Sluigi struct servent *se; 65598943Sluigi 65698943Sluigi if (proto != 0) 65798943Sluigi pe = getprotobynumber(proto); 65898943Sluigi setservent(1); 659101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 660101628Sluigi free(buf); 66198943Sluigi if (se != NULL) { 66298943Sluigi *end = s1; 66398943Sluigi return ntohs(se->s_port); 66498943Sluigi } 66598943Sluigi } 666101628Sluigi return 0; /* not found */ 66798943Sluigi} 66898943Sluigi 66998943Sluigi/* 670136071Sgreen * Map between current altq queue id numbers and names. 671136071Sgreen */ 672136071Sgreenstatic int altq_fetched = 0; 673136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 674136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 675136071Sgreen 676136071Sgreenstatic void 677136071Sgreenaltq_set_enabled(int enabled) 678136071Sgreen{ 679136071Sgreen int pffd; 680136071Sgreen 681136071Sgreen pffd = open("/dev/pf", O_RDWR); 682136071Sgreen if (pffd == -1) 683136071Sgreen err(EX_UNAVAILABLE, 684136071Sgreen "altq support opening pf(4) control device"); 685136071Sgreen if (enabled) { 686136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 687136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 688136071Sgreen } else { 689136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 690136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 691136071Sgreen } 692136071Sgreen close(pffd); 693136071Sgreen} 694136071Sgreen 695136071Sgreenstatic void 696136071Sgreenaltq_fetch() 697136071Sgreen{ 698136071Sgreen struct pfioc_altq pfioc; 699136071Sgreen struct pf_altq *altq; 700136071Sgreen int pffd, mnr; 701136071Sgreen 702136071Sgreen if (altq_fetched) 703136071Sgreen return; 704136071Sgreen altq_fetched = 1; 705136071Sgreen pffd = open("/dev/pf", O_RDONLY); 706136071Sgreen if (pffd == -1) { 707136071Sgreen warn("altq support opening pf(4) control device"); 708136071Sgreen return; 709136071Sgreen } 710136071Sgreen bzero(&pfioc, sizeof(pfioc)); 711136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 712136071Sgreen warn("altq support getting queue list"); 713136071Sgreen close(pffd); 714136071Sgreen return; 715136071Sgreen } 716136071Sgreen mnr = pfioc.nr; 717136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 718136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 719136071Sgreen if (errno == EBUSY) 720136071Sgreen break; 721136071Sgreen warn("altq support getting queue list"); 722136071Sgreen close(pffd); 723136071Sgreen return; 724136071Sgreen } 725136071Sgreen if (pfioc.altq.qid == 0) 726136071Sgreen continue; 727136071Sgreen altq = malloc(sizeof(*altq)); 728136071Sgreen if (altq == NULL) 729136071Sgreen err(EX_OSERR, "malloc"); 730136071Sgreen *altq = pfioc.altq; 731136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 732136071Sgreen } 733136071Sgreen close(pffd); 734136071Sgreen} 735136071Sgreen 736136071Sgreenstatic u_int32_t 737136071Sgreenaltq_name_to_qid(const char *name) 738136071Sgreen{ 739136071Sgreen struct pf_altq *altq; 740136071Sgreen 741136071Sgreen altq_fetch(); 742136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 743136071Sgreen if (strcmp(name, altq->qname) == 0) 744136071Sgreen break; 745136071Sgreen if (altq == NULL) 746136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 747136071Sgreen return altq->qid; 748136071Sgreen} 749136071Sgreen 750136071Sgreenstatic const char * 751136071Sgreenaltq_qid_to_name(u_int32_t qid) 752136071Sgreen{ 753136071Sgreen struct pf_altq *altq; 754136071Sgreen 755136071Sgreen altq_fetch(); 756136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 757136071Sgreen if (qid == altq->qid) 758136071Sgreen break; 759136071Sgreen if (altq == NULL) 760136071Sgreen return NULL; 761136071Sgreen return altq->qname; 762136071Sgreen} 763136071Sgreen 764136071Sgreenstatic void 765136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 766136071Sgreen{ 767136071Sgreen *qid = altq_name_to_qid(av); 768136071Sgreen} 769136071Sgreen 770136071Sgreen/* 771117328Sluigi * Fill the body of the command with the list of port ranges. 77298943Sluigi */ 77398943Sluigistatic int 77498943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 77598943Sluigi{ 776117328Sluigi uint16_t a, b, *p = cmd->ports; 77798943Sluigi int i = 0; 778102087Sluigi char *s = av; 77998943Sluigi 780102087Sluigi while (*s) { 78198943Sluigi a = strtoport(av, &s, 0, proto); 78298943Sluigi if (s == av) /* no parameter */ 78398943Sluigi break; 78498943Sluigi if (*s == '-') { /* a range */ 78598943Sluigi av = s+1; 78698943Sluigi b = strtoport(av, &s, 0, proto); 78798943Sluigi if (s == av) /* no parameter */ 78898943Sluigi break; 78998943Sluigi p[0] = a; 79098943Sluigi p[1] = b; 791117328Sluigi } else if (*s == ',' || *s == '\0' ) 79298943Sluigi p[0] = p[1] = a; 793117328Sluigi else /* invalid separator */ 794101978Sluigi errx(EX_DATAERR, "invalid separator <%c> in <%s>\n", 795101978Sluigi *s, av); 796102087Sluigi i++; 797102087Sluigi p += 2; 79898943Sluigi av = s+1; 79998943Sluigi } 80098943Sluigi if (i > 0) { 80198943Sluigi if (i+1 > F_LEN_MASK) 802102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 80398943Sluigi cmd->o.len |= i+1; /* leave F_NOT and F_OR untouched */ 80498943Sluigi } 80598943Sluigi return i; 80698943Sluigi} 80798943Sluigi 80898943Sluigistatic struct _s_x icmpcodes[] = { 80998943Sluigi { "net", ICMP_UNREACH_NET }, 81098943Sluigi { "host", ICMP_UNREACH_HOST }, 81198943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 81298943Sluigi { "port", ICMP_UNREACH_PORT }, 81398943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 81498943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 81598943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 81698943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 81798943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 81898943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 81998943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 82098943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 82198943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 82298943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 82398943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 82498943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 82598943Sluigi { NULL, 0 } 82698943Sluigi}; 82798943Sluigi 82898943Sluigistatic void 82998943Sluigifill_reject_code(u_short *codep, char *str) 83098943Sluigi{ 83198943Sluigi int val; 83298943Sluigi char *s; 83398943Sluigi 83498943Sluigi val = strtoul(str, &s, 0); 83598943Sluigi if (s == str || *s != '\0' || val >= 0x100) 83698943Sluigi val = match_token(icmpcodes, str); 837102087Sluigi if (val < 0) 83898943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 83998943Sluigi *codep = val; 84098943Sluigi return; 84198943Sluigi} 84298943Sluigi 84398943Sluigistatic void 844117328Sluigiprint_reject_code(uint16_t code) 84598943Sluigi{ 846117469Sluigi char const *s = match_value(icmpcodes, code); 84798943Sluigi 84898943Sluigi if (s != NULL) 84999475Sluigi printf("unreach %s", s); 85098943Sluigi else 85199475Sluigi printf("unreach %u", code); 85298943Sluigi} 85398943Sluigi 85498943Sluigi/* 85598943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 85698943Sluigi * or -1 if the mask is not contiguous. 85798943Sluigi * XXX this needs a proper fix. 85898943Sluigi * This effectively works on masks in big-endian (network) format. 85998943Sluigi * when compiled on little endian architectures. 86098943Sluigi * 86198943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 86298943Sluigi * the first bit on the wire is bit 0 of the first byte. 86398943Sluigi * len is the max length in bits. 86498943Sluigi */ 86598943Sluigistatic int 866117577Sluigicontigmask(uint8_t *p, int len) 86798943Sluigi{ 86898943Sluigi int i, n; 869117577Sluigi 87098943Sluigi for (i=0; i<len ; i++) 87198943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 87298943Sluigi break; 87398943Sluigi for (n=i+1; n < len; n++) 87498943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 87598943Sluigi return -1; /* mask not contiguous */ 87698943Sluigi return i; 87798943Sluigi} 87898943Sluigi 87998943Sluigi/* 88098943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 88198943Sluigi * There is a specialized check for f_tcpflags. 88298943Sluigi */ 88398943Sluigistatic void 884117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 88598943Sluigi{ 886117469Sluigi char const *comma = ""; 88798943Sluigi int i; 888117577Sluigi uint8_t set = cmd->arg1 & 0xff; 889117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 89098943Sluigi 89198943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 89298943Sluigi printf(" setup"); 89398943Sluigi return; 89498943Sluigi } 89598943Sluigi 89698943Sluigi printf(" %s ", name); 89798943Sluigi for (i=0; list[i].x != 0; i++) { 89898943Sluigi if (set & list[i].x) { 89998943Sluigi set &= ~list[i].x; 90098943Sluigi printf("%s%s", comma, list[i].s); 90198943Sluigi comma = ","; 90298943Sluigi } 90398943Sluigi if (clear & list[i].x) { 90498943Sluigi clear &= ~list[i].x; 90598943Sluigi printf("%s!%s", comma, list[i].s); 90698943Sluigi comma = ","; 90798943Sluigi } 90898943Sluigi } 90998943Sluigi} 91098943Sluigi 91198943Sluigi/* 91298943Sluigi * Print the ip address contained in a command. 91398943Sluigi */ 91498943Sluigistatic void 915117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 91698943Sluigi{ 91798943Sluigi struct hostent *he = NULL; 918117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 919117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 92098943Sluigi 921102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 92298943Sluigi 92398943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 92498943Sluigi printf("me"); 92598943Sluigi return; 92698943Sluigi } 927130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 928130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 929130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 930130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 931130281Sru printf(",%u", *a); 932130281Sru printf(")"); 933130281Sru return; 934130281Sru } 93598943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 936117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 937116716Sluigi int i, j; 93898943Sluigi char comma = '{'; 93998943Sluigi 94098943Sluigi x = cmd->o.arg1 - 1; 94198943Sluigi x = htonl( ~x ); 94298943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 94398943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 944117577Sluigi contigmask((uint8_t *)&x, 32)); 94598943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 94698943Sluigi x &= 0xff; /* base */ 947116716Sluigi /* 948116716Sluigi * Print bits and ranges. 949116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 950116716Sluigi * If we have 3+ consecutive bits set, then print them as a 951116716Sluigi * range, otherwise only print the initial bit and rescan. 952116716Sluigi */ 95398943Sluigi for (i=0; i < cmd->o.arg1; i++) 954117328Sluigi if (map[i/32] & (1<<(i & 31))) { 955116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 956117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 957116716Sluigi break; 95898943Sluigi printf("%c%d", comma, i+x); 959116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 960116716Sluigi printf("-%d", j-1+x); 961116716Sluigi i = j-1; 962116716Sluigi } 96398943Sluigi comma = ','; 96498943Sluigi } 96598943Sluigi printf("}"); 96698943Sluigi return; 96798943Sluigi } 968117328Sluigi /* 969117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 970117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 971117328Sluigi * use that to count the number of entries. 972117328Sluigi */ 973117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 974117328Sluigi int mb = /* mask length */ 975117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 976117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 97798943Sluigi if (mb == 32 && do_resolv) 978117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 97998943Sluigi if (he != NULL) /* resolved to name */ 98098943Sluigi printf("%s", he->h_name); 98198943Sluigi else if (mb == 0) /* any */ 98298943Sluigi printf("any"); 98398943Sluigi else { /* numeric IP followed by some kind of mask */ 984117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 98598943Sluigi if (mb < 0) 986117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 98798943Sluigi else if (mb < 32) 98898943Sluigi printf("/%d", mb); 98998943Sluigi } 990117328Sluigi if (len > 1) 991117328Sluigi printf(","); 992117328Sluigi } 99398943Sluigi} 99498943Sluigi 99598943Sluigi/* 99698943Sluigi * prints a MAC address/mask pair 99798943Sluigi */ 99898943Sluigistatic void 999117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 100098943Sluigi{ 100198943Sluigi int l = contigmask(mask, 48); 100298943Sluigi 100398943Sluigi if (l == 0) 100498943Sluigi printf(" any"); 100598943Sluigi else { 100698943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 100798943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 100898943Sluigi if (l == -1) 100998943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 101098943Sluigi mask[0], mask[1], mask[2], 101198943Sluigi mask[3], mask[4], mask[5]); 101298943Sluigi else if (l < 48) 101398943Sluigi printf("/%d", l); 101498943Sluigi } 101598943Sluigi} 101698943Sluigi 101799475Sluigistatic void 101899475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 101999475Sluigi{ 1020117328Sluigi uint8_t type; 102198943Sluigi 102299475Sluigi cmd->d[0] = 0; 102399475Sluigi while (*av) { 102499475Sluigi if (*av == ',') 102599475Sluigi av++; 102699475Sluigi 102799475Sluigi type = strtoul(av, &av, 0); 102899475Sluigi 102999475Sluigi if (*av != ',' && *av != '\0') 103099475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 103199475Sluigi 103299475Sluigi if (type > 31) 103399475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 103499475Sluigi 103599475Sluigi cmd->d[0] |= 1 << type; 103699475Sluigi } 103799475Sluigi cmd->o.opcode = O_ICMPTYPE; 103899475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 103999475Sluigi} 104099475Sluigi 104199475Sluigistatic void 104299475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 104399475Sluigi{ 104499475Sluigi int i; 104599475Sluigi char sep= ' '; 104699475Sluigi 104799475Sluigi printf(" icmptypes"); 104899475Sluigi for (i = 0; i < 32; i++) { 104999475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 105099475Sluigi continue; 105199475Sluigi printf("%c%d", sep, i); 105299475Sluigi sep = ','; 105399475Sluigi } 105499475Sluigi} 105599475Sluigi 1056145246Sbrooks/* 1057145246Sbrooks * Print the ip address contained in a command. 1058145246Sbrooks */ 1059145246Sbrooksstatic void 1060145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1061145246Sbrooks{ 1062145246Sbrooks struct hostent *he = NULL; 1063145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1064145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1065145246Sbrooks char trad[255]; 1066145246Sbrooks 1067145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1068145246Sbrooks 1069145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1070145246Sbrooks printf("me6"); 1071145246Sbrooks return; 1072145246Sbrooks } 1073145246Sbrooks if (cmd->o.opcode == O_IP6) { 1074145246Sbrooks printf(" ipv6"); 1075145246Sbrooks return; 1076145246Sbrooks } 1077145246Sbrooks 1078145246Sbrooks /* 1079145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1080145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1081145246Sbrooks * use that to count the number of entries. 1082145246Sbrooks */ 1083145246Sbrooks 1084145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1085145246Sbrooks int mb = /* mask length */ 1086145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1087145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1088145246Sbrooks 1089145246Sbrooks if (mb == 128 && do_resolv) 1090145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1091145246Sbrooks if (he != NULL) /* resolved to name */ 1092145246Sbrooks printf("%s", he->h_name); 1093145246Sbrooks else if (mb == 0) /* any */ 1094145246Sbrooks printf("any"); 1095145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1096145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1097145246Sbrooks printf("Error ntop in print_ip6\n"); 1098145246Sbrooks printf("%s", trad ); 1099145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1100145246Sbrooks printf(":%s", 1101145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1102145246Sbrooks else if (mb < 128) 1103145246Sbrooks printf("/%d", mb); 1104145246Sbrooks } 1105145246Sbrooks if (len > 2) 1106145246Sbrooks printf(","); 1107145246Sbrooks } 1108145246Sbrooks} 1109145246Sbrooks 1110145246Sbrooksstatic void 1111145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1112145246Sbrooks{ 1113145246Sbrooks uint8_t type; 1114145246Sbrooks 1115145246Sbrooks cmd->d[0] = 0; 1116145246Sbrooks while (*av) { 1117145246Sbrooks if (*av == ',') 1118145246Sbrooks av++; 1119145246Sbrooks type = strtoul(av, &av, 0); 1120145246Sbrooks if (*av != ',' && *av != '\0') 1121145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1122145246Sbrooks /* 1123145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1124145246Sbrooks * we shouldn't be able to filter all possiable values 1125145246Sbrooks * regardless of the ability of the rest of the kernel to do 1126145246Sbrooks * anything useful with them. 1127145246Sbrooks */ 1128145246Sbrooks if (type > ICMP6_MAXTYPE) 1129145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1130145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1131145246Sbrooks } 1132145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1133145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1134145246Sbrooks} 1135145246Sbrooks 1136145246Sbrooks 1137145246Sbrooksstatic void 1138145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1139145246Sbrooks{ 1140145246Sbrooks int i, j; 1141145246Sbrooks char sep= ' '; 1142145246Sbrooks 1143145246Sbrooks printf(" ipv6 icmp6types"); 1144145246Sbrooks for (i = 0; i < 7; i++) 1145145246Sbrooks for (j=0; j < 32; ++j) { 1146145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1147145246Sbrooks continue; 1148145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1149145246Sbrooks sep = ','; 1150145246Sbrooks } 1151145246Sbrooks} 1152145246Sbrooks 1153145246Sbrooksstatic void 1154145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1155145246Sbrooks{ 1156145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1157145246Sbrooks char sep = ','; 1158145246Sbrooks 1159145246Sbrooks printf(" flow-id "); 1160145246Sbrooks for( i=0; i < limit; ++i) { 1161145246Sbrooks if (i == limit - 1) 1162145246Sbrooks sep = ' '; 1163145246Sbrooks printf("%d%c", cmd->d[i], sep); 1164145246Sbrooks } 1165145246Sbrooks} 1166145246Sbrooks 1167145246Sbrooks/* structure and define for the extension header in ipv6 */ 1168145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1169145246Sbrooks { "frag", EXT_FRAGMENT }, 1170145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1171145246Sbrooks { "route", EXT_ROUTING }, 1172145246Sbrooks { "ah", EXT_AH }, 1173145246Sbrooks { "esp", EXT_ESP }, 1174145246Sbrooks { NULL, 0 } 1175145246Sbrooks}; 1176145246Sbrooks 1177145246Sbrooks/* fills command for the extension header filtering */ 1178145246Sbrooksint 1179145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1180145246Sbrooks{ 1181145246Sbrooks int tok; 1182145246Sbrooks char *s = av; 1183145246Sbrooks 1184145246Sbrooks cmd->arg1 = 0; 1185145246Sbrooks 1186145246Sbrooks while(s) { 1187145246Sbrooks av = strsep( &s, ",") ; 1188145246Sbrooks tok = match_token(ext6hdrcodes, av); 1189145246Sbrooks switch (tok) { 1190145246Sbrooks case EXT_FRAGMENT: 1191145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1192145246Sbrooks break; 1193145246Sbrooks 1194145246Sbrooks case EXT_HOPOPTS: 1195145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1196145246Sbrooks break; 1197145246Sbrooks 1198145246Sbrooks case EXT_ROUTING: 1199145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1200145246Sbrooks break; 1201145246Sbrooks 1202145246Sbrooks case EXT_AH: 1203145246Sbrooks cmd->arg1 |= EXT_AH; 1204145246Sbrooks break; 1205145246Sbrooks 1206145246Sbrooks case EXT_ESP: 1207145246Sbrooks cmd->arg1 |= EXT_ESP; 1208145246Sbrooks break; 1209145246Sbrooks 1210145246Sbrooks default: 1211145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1212145246Sbrooks break; 1213145246Sbrooks } 1214145246Sbrooks } 1215145246Sbrooks if (cmd->arg1 == 0 ) 1216145246Sbrooks return 0; 1217145246Sbrooks cmd->opcode = O_EXT_HDR; 1218145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1219145246Sbrooks return 1; 1220145246Sbrooks} 1221145246Sbrooks 1222145246Sbrooksvoid 1223145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1224145246Sbrooks{ 1225145246Sbrooks char sep = ' '; 1226145246Sbrooks 1227145246Sbrooks printf(" extension header:"); 1228145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1229145246Sbrooks printf("%cfragmentation", sep); 1230145246Sbrooks sep = ','; 1231145246Sbrooks } 1232145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1233145246Sbrooks printf("%chop options", sep); 1234145246Sbrooks sep = ','; 1235145246Sbrooks } 1236145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1237145246Sbrooks printf("%crouting options", sep); 1238145246Sbrooks sep = ','; 1239145246Sbrooks } 1240145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1241145246Sbrooks printf("%cauthentication header", sep); 1242145246Sbrooks sep = ','; 1243145246Sbrooks } 1244145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1245145246Sbrooks printf("%cencapsulated security payload", sep); 1246145246Sbrooks } 1247145246Sbrooks} 1248145246Sbrooks 124998943Sluigi/* 125098943Sluigi * show_ipfw() prints the body of an ipfw rule. 125198943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 125298943Sluigi * a helper function to produce these entries if not provided explicitly. 1253102087Sluigi * The first argument is the list of fields we have, the second is 1254102087Sluigi * the list of fields we want to be printed. 1255101978Sluigi * 1256102087Sluigi * Special cases if we have provided a MAC header: 1257102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1258102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1259102087Sluigi * 1260102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 126198943Sluigi */ 1262101978Sluigi#define HAVE_PROTO 0x0001 1263101978Sluigi#define HAVE_SRCIP 0x0002 1264101978Sluigi#define HAVE_DSTIP 0x0004 1265101978Sluigi#define HAVE_MAC 0x0008 1266101978Sluigi#define HAVE_MACTYPE 0x0010 1267146894Smlaier#define HAVE_PROTO4 0x0040 1268145246Sbrooks#define HAVE_PROTO6 0x0080 1269102087Sluigi#define HAVE_OPTIONS 0x8000 127098943Sluigi 1271101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 127298943Sluigistatic void 1273102087Sluigishow_prerequisites(int *flags, int want, int cmd) 127498943Sluigi{ 1275123495Sluigi if (comment_only) 1276123495Sluigi return; 1277102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1278102087Sluigi *flags |= HAVE_OPTIONS; 1279102087Sluigi 1280102087Sluigi if ( (*flags & (HAVE_MAC|HAVE_MACTYPE|HAVE_OPTIONS)) == HAVE_MAC && 1281102087Sluigi cmd != O_MAC_TYPE) { 1282102087Sluigi /* 1283102087Sluigi * mac-type was optimized out by the compiler, 1284102087Sluigi * restore it 1285102087Sluigi */ 1286102087Sluigi printf(" any"); 1287102087Sluigi *flags |= HAVE_MACTYPE | HAVE_OPTIONS; 1288102087Sluigi return; 1289101978Sluigi } 1290102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1291102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 1292146894Smlaier if ( (*flags & HAVE_PROTO4)) 1293146894Smlaier printf(" ip4"); 1294146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1295146894Smlaier printf(" ip6"); 1296146894Smlaier else 1297146894Smlaier printf(" ip"); 1298146894Smlaier 1299102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1300102087Sluigi printf(" from any"); 1301102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1302102087Sluigi printf(" to any"); 1303102087Sluigi } 130498943Sluigi *flags |= want; 130598943Sluigi} 130698943Sluigi 130798943Sluigistatic void 1308112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 130998943Sluigi{ 1310107291Skeramida static int twidth = 0; 131198943Sluigi int l; 131298943Sluigi ipfw_insn *cmd; 1313117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 131498943Sluigi int proto = 0; /* default */ 131598943Sluigi int flags = 0; /* prerequisites */ 131698943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1317136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 131898943Sluigi int or_block = 0; /* we are in an or block */ 1319117328Sluigi uint32_t set_disable; 132098943Sluigi 1321115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1322101628Sluigi 1323101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1324101628Sluigi if (!show_sets) 1325101628Sluigi return; 1326101628Sluigi else 1327101628Sluigi printf("# DISABLED "); 1328101628Sluigi } 132998943Sluigi printf("%05u ", rule->rulenum); 133098943Sluigi 1331117469Sluigi if (pcwidth>0 || bcwidth>0) 1332115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1333115793Sticso bcwidth, align_uint64(&rule->bcnt)); 133498943Sluigi 1335117472Sluigi if (do_time == 2) 1336117472Sluigi printf("%10u ", rule->timestamp); 1337117472Sluigi else if (do_time == 1) { 1338107291Skeramida char timestr[30]; 1339107291Skeramida time_t t = (time_t)0; 1340107291Skeramida 1341107291Skeramida if (twidth == 0) { 1342107291Skeramida strcpy(timestr, ctime(&t)); 1343107291Skeramida *strchr(timestr, '\n') = '\0'; 1344107291Skeramida twidth = strlen(timestr); 1345107291Skeramida } 134698943Sluigi if (rule->timestamp) { 1347117469Sluigi#if _FreeBSD_version < 500000 /* XXX check */ 1348117469Sluigi#define _long_to_time(x) (time_t)(x) 1349117469Sluigi#endif 1350107291Skeramida t = _long_to_time(rule->timestamp); 135198943Sluigi 135298943Sluigi strcpy(timestr, ctime(&t)); 135398943Sluigi *strchr(timestr, '\n') = '\0'; 135498943Sluigi printf("%s ", timestr); 135598943Sluigi } else { 1356107291Skeramida printf("%*s", twidth, " "); 135798943Sluigi } 135898943Sluigi } 135998943Sluigi 1360101628Sluigi if (show_sets) 1361101628Sluigi printf("set %d ", rule->set); 1362101628Sluigi 136398943Sluigi /* 1364107289Sluigi * print the optional "match probability" 1365107289Sluigi */ 1366107289Sluigi if (rule->cmd_len > 0) { 1367107289Sluigi cmd = rule->cmd ; 1368107289Sluigi if (cmd->opcode == O_PROB) { 1369107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1370107289Sluigi double d = 1.0 * p->d[0]; 1371107289Sluigi 1372107289Sluigi d = (d / 0x7fffffff); 1373107289Sluigi printf("prob %f ", d); 1374107289Sluigi } 1375107289Sluigi } 1376107289Sluigi 1377107289Sluigi /* 137898943Sluigi * first print actions 137998943Sluigi */ 138098943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 138198943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 138298943Sluigi switch(cmd->opcode) { 138398943Sluigi case O_CHECK_STATE: 138498943Sluigi printf("check-state"); 1385102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 138698943Sluigi break; 138798943Sluigi 138898943Sluigi case O_ACCEPT: 138998943Sluigi printf("allow"); 139098943Sluigi break; 139198943Sluigi 139298943Sluigi case O_COUNT: 139398943Sluigi printf("count"); 139498943Sluigi break; 139598943Sluigi 139698943Sluigi case O_DENY: 139798943Sluigi printf("deny"); 139898943Sluigi break; 139998943Sluigi 140099475Sluigi case O_REJECT: 140199475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 140299475Sluigi printf("reset"); 140399475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 140499475Sluigi printf("reject"); 140599475Sluigi else 140699475Sluigi print_reject_code(cmd->arg1); 140799475Sluigi break; 140899475Sluigi 140998943Sluigi case O_SKIPTO: 141098943Sluigi printf("skipto %u", cmd->arg1); 141198943Sluigi break; 141298943Sluigi 141398943Sluigi case O_PIPE: 141498943Sluigi printf("pipe %u", cmd->arg1); 141598943Sluigi break; 141698943Sluigi 141798943Sluigi case O_QUEUE: 141898943Sluigi printf("queue %u", cmd->arg1); 141998943Sluigi break; 142098943Sluigi 142198943Sluigi case O_DIVERT: 142298943Sluigi printf("divert %u", cmd->arg1); 142398943Sluigi break; 142498943Sluigi 142598943Sluigi case O_TEE: 142698943Sluigi printf("tee %u", cmd->arg1); 142798943Sluigi break; 142898943Sluigi 1429141351Sglebius case O_NETGRAPH: 1430141351Sglebius printf("netgraph %u", cmd->arg1); 1431141351Sglebius break; 1432141351Sglebius 1433141351Sglebius case O_NGTEE: 1434141351Sglebius printf("ngtee %u", cmd->arg1); 1435141351Sglebius break; 1436141351Sglebius 143798943Sluigi case O_FORWARD_IP: 143898943Sluigi { 143998943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 144098943Sluigi 144198943Sluigi printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 144298943Sluigi if (s->sa.sin_port) 1443103241Sluigi printf(",%d", s->sa.sin_port); 144498943Sluigi } 144598943Sluigi break; 144698943Sluigi 144798943Sluigi case O_LOG: /* O_LOG is printed last */ 144898943Sluigi logptr = (ipfw_insn_log *)cmd; 144998943Sluigi break; 145098943Sluigi 1451136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1452136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1453136071Sgreen break; 1454136071Sgreen 145598943Sluigi default: 1456136071Sgreen printf("** unrecognized action %d len %d ", 145798943Sluigi cmd->opcode, cmd->len); 145898943Sluigi } 145998943Sluigi } 146098943Sluigi if (logptr) { 146198943Sluigi if (logptr->max_log > 0) 146299909Sluigi printf(" log logamount %d", logptr->max_log); 146398943Sluigi else 146499909Sluigi printf(" log"); 146598943Sluigi } 1466136071Sgreen if (altqptr) { 1467136071Sgreen const char *qname; 1468102087Sluigi 1469136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1470136071Sgreen if (qname == NULL) 1471136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1472136071Sgreen else 1473136071Sgreen printf(" altq %s", qname); 1474136071Sgreen } 1475136071Sgreen 147698943Sluigi /* 1477102087Sluigi * then print the body. 147898943Sluigi */ 1479146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1480146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1481146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1482146894Smlaier continue; 1483146894Smlaier if (cmd->opcode == O_IP4) { 1484146894Smlaier flags |= HAVE_PROTO4; 1485146894Smlaier break; 1486146894Smlaier } else if (cmd->opcode == O_IP6) { 1487146894Smlaier flags |= HAVE_PROTO6; 1488146894Smlaier break; 1489146894Smlaier } 1490146894Smlaier } 1491102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1492146894Smlaier if (!do_compact) { 1493146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1494146894Smlaier printf(" from any to any"); 1495146894Smlaier } 1496102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1497102087Sluigi } 1498102087Sluigi 1499123495Sluigi if (comment_only) 1500123495Sluigi comment = "..."; 1501123495Sluigi 150298943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 150398943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 150499475Sluigi /* useful alias */ 150599475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 150698943Sluigi 1507123495Sluigi if (comment_only) { 1508123495Sluigi if (cmd->opcode != O_NOP) 1509123495Sluigi continue; 1510123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1511123495Sluigi return; 1512123495Sluigi } 1513123495Sluigi 1514102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1515102087Sluigi 151698943Sluigi switch(cmd->opcode) { 1517117577Sluigi case O_PROB: 1518107289Sluigi break; /* done already */ 1519107289Sluigi 152098943Sluigi case O_PROBE_STATE: 152198943Sluigi break; /* no need to print anything here */ 152298943Sluigi 152398943Sluigi case O_MACADDR2: { 152498943Sluigi ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1525102087Sluigi 1526102087Sluigi if ((cmd->len & F_OR) && !or_block) 1527102087Sluigi printf(" {"); 152898943Sluigi if (cmd->len & F_NOT) 152998943Sluigi printf(" not"); 1530102087Sluigi printf(" MAC"); 1531102087Sluigi flags |= HAVE_MAC; 1532117577Sluigi print_mac(m->addr, m->mask); 1533117577Sluigi print_mac(m->addr + 6, m->mask + 6); 153498943Sluigi } 153598943Sluigi break; 153698943Sluigi 153798943Sluigi case O_MAC_TYPE: 1538102087Sluigi if ((cmd->len & F_OR) && !or_block) 1539102087Sluigi printf(" {"); 1540102087Sluigi print_newports((ipfw_insn_u16 *)cmd, IPPROTO_ETHERTYPE, 1541102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 1542102087Sluigi flags |= HAVE_MAC | HAVE_MACTYPE | HAVE_OPTIONS; 154398943Sluigi break; 154498943Sluigi 154598943Sluigi case O_IP_SRC: 1546130281Sru case O_IP_SRC_LOOKUP: 154798943Sluigi case O_IP_SRC_MASK: 154898943Sluigi case O_IP_SRC_ME: 154998943Sluigi case O_IP_SRC_SET: 1550102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 155198943Sluigi if (!(flags & HAVE_SRCIP)) 155298943Sluigi printf(" from"); 155398943Sluigi if ((cmd->len & F_OR) && !or_block) 155498943Sluigi printf(" {"); 1555102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1556102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 155798943Sluigi flags |= HAVE_SRCIP; 155898943Sluigi break; 155998943Sluigi 156098943Sluigi case O_IP_DST: 1561130281Sru case O_IP_DST_LOOKUP: 156298943Sluigi case O_IP_DST_MASK: 156398943Sluigi case O_IP_DST_ME: 156498943Sluigi case O_IP_DST_SET: 1565102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 156698943Sluigi if (!(flags & HAVE_DSTIP)) 156798943Sluigi printf(" to"); 156898943Sluigi if ((cmd->len & F_OR) && !or_block) 156998943Sluigi printf(" {"); 1570102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1571102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 157298943Sluigi flags |= HAVE_DSTIP; 157398943Sluigi break; 157498943Sluigi 1575145246Sbrooks case O_IP6_SRC: 1576145246Sbrooks case O_IP6_SRC_MASK: 1577145246Sbrooks case O_IP6_SRC_ME: 1578145246Sbrooks show_prerequisites(&flags, HAVE_PROTO6, 0); 1579145246Sbrooks if (!(flags & HAVE_SRCIP)) 1580145246Sbrooks printf(" from"); 1581145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1582145246Sbrooks printf(" {"); 1583145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1584145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1585145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1586145246Sbrooks break; 1587145246Sbrooks 1588145246Sbrooks case O_IP6_DST: 1589145246Sbrooks case O_IP6_DST_MASK: 1590145246Sbrooks case O_IP6_DST_ME: 1591145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1592145246Sbrooks if (!(flags & HAVE_DSTIP)) 1593145246Sbrooks printf(" to"); 1594145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1595145246Sbrooks printf(" {"); 1596145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1597145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1598145246Sbrooks flags |= HAVE_DSTIP; 1599145246Sbrooks break; 1600145246Sbrooks 1601145246Sbrooks case O_FLOW6ID: 1602145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1603145246Sbrooks flags |= HAVE_OPTIONS; 1604145246Sbrooks break; 1605145246Sbrooks 160698943Sluigi case O_IP_DSTPORT: 1607102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 160898943Sluigi case O_IP_SRCPORT: 1609102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1610101641Sluigi if ((cmd->len & F_OR) && !or_block) 1611101641Sluigi printf(" {"); 1612102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1613102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 161498943Sluigi break; 161598943Sluigi 161698943Sluigi case O_PROTO: { 1617145246Sbrooks struct protoent *pe = NULL; 161898943Sluigi 161998943Sluigi if ((cmd->len & F_OR) && !or_block) 162098943Sluigi printf(" {"); 162198943Sluigi if (cmd->len & F_NOT) 162298943Sluigi printf(" not"); 162398943Sluigi proto = cmd->arg1; 1624145567Sbrooks pe = getprotobynumber(cmd->arg1); 1625146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1626146894Smlaier !(flags & HAVE_PROTO)) 1627146894Smlaier show_prerequisites(&flags, 1628146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1629102087Sluigi if (flags & HAVE_OPTIONS) 1630102087Sluigi printf(" proto"); 163198943Sluigi if (pe) 163298943Sluigi printf(" %s", pe->p_name); 163398943Sluigi else 163498943Sluigi printf(" %u", cmd->arg1); 163598943Sluigi } 163698943Sluigi flags |= HAVE_PROTO; 163798943Sluigi break; 1638106505Smaxim 163998943Sluigi default: /*options ... */ 1640146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1641146894Smlaier if (((cmd->opcode == O_IP6) && 1642146894Smlaier (flags & HAVE_PROTO6)) || 1643146894Smlaier ((cmd->opcode == O_IP4) && 1644146894Smlaier (flags & HAVE_PROTO4))) 1645146894Smlaier break; 1646102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 164798943Sluigi if ((cmd->len & F_OR) && !or_block) 164898943Sluigi printf(" {"); 164998943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 165098943Sluigi printf(" not"); 165198943Sluigi switch(cmd->opcode) { 165298943Sluigi case O_FRAG: 165398943Sluigi printf(" frag"); 165498943Sluigi break; 165598943Sluigi 165698943Sluigi case O_IN: 165798943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 165898943Sluigi break; 165998943Sluigi 1660136073Sgreen case O_DIVERTED: 1661136073Sgreen switch (cmd->arg1) { 1662136073Sgreen case 3: 1663136073Sgreen printf(" diverted"); 1664136073Sgreen break; 1665136073Sgreen case 1: 1666136073Sgreen printf(" diverted-loopback"); 1667136073Sgreen break; 1668136073Sgreen case 2: 1669136073Sgreen printf(" diverted-output"); 1670136073Sgreen break; 1671136073Sgreen default: 1672136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1673136073Sgreen break; 1674136073Sgreen } 1675136073Sgreen break; 1676136073Sgreen 167798943Sluigi case O_LAYER2: 167898943Sluigi printf(" layer2"); 167998943Sluigi break; 168098943Sluigi case O_XMIT: 168198943Sluigi case O_RECV: 1682140423Sglebius case O_VIA: 1683140423Sglebius { 1684117469Sluigi char const *s; 168598943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 168698943Sluigi 168798943Sluigi if (cmd->opcode == O_XMIT) 168898943Sluigi s = "xmit"; 168998943Sluigi else if (cmd->opcode == O_RECV) 169098943Sluigi s = "recv"; 1691117469Sluigi else /* if (cmd->opcode == O_VIA) */ 169298943Sluigi s = "via"; 169398943Sluigi if (cmdif->name[0] == '\0') 169499475Sluigi printf(" %s %s", s, 169599475Sluigi inet_ntoa(cmdif->p.ip)); 1696140423Sglebius else 1697140423Sglebius printf(" %s %s", s, cmdif->name); 1698140423Sglebius 169998943Sluigi break; 1700140423Sglebius } 170198943Sluigi case O_IPID: 1702116690Sluigi if (F_LEN(cmd) == 1) 1703116690Sluigi printf(" ipid %u", cmd->arg1 ); 1704116690Sluigi else 1705116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1706116690Sluigi O_IPID); 170798943Sluigi break; 170898943Sluigi 170998943Sluigi case O_IPTTL: 1710116690Sluigi if (F_LEN(cmd) == 1) 1711116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1712116690Sluigi else 1713116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1714116690Sluigi O_IPTTL); 171598943Sluigi break; 171698943Sluigi 171798943Sluigi case O_IPVER: 171898943Sluigi printf(" ipver %u", cmd->arg1 ); 171998943Sluigi break; 172098943Sluigi 172199475Sluigi case O_IPPRECEDENCE: 172299475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 172399475Sluigi break; 172499475Sluigi 172598943Sluigi case O_IPLEN: 1726116690Sluigi if (F_LEN(cmd) == 1) 1727116690Sluigi printf(" iplen %u", cmd->arg1 ); 1728116690Sluigi else 1729116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1730116690Sluigi O_IPLEN); 173198943Sluigi break; 173298943Sluigi 1733101116Sluigi case O_IPOPT: 173498943Sluigi print_flags("ipoptions", cmd, f_ipopts); 173598943Sluigi break; 173698943Sluigi 173799475Sluigi case O_IPTOS: 173899475Sluigi print_flags("iptos", cmd, f_iptos); 173999475Sluigi break; 174099475Sluigi 174199475Sluigi case O_ICMPTYPE: 174299475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 174399475Sluigi break; 174499475Sluigi 174598943Sluigi case O_ESTAB: 174698943Sluigi printf(" established"); 174798943Sluigi break; 174898943Sluigi 1749136075Sgreen case O_TCPDATALEN: 1750136075Sgreen if (F_LEN(cmd) == 1) 1751136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1752136075Sgreen else 1753136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1754136075Sgreen O_TCPDATALEN); 1755136075Sgreen break; 1756136075Sgreen 175798943Sluigi case O_TCPFLAGS: 175898943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 175998943Sluigi break; 176098943Sluigi 176198943Sluigi case O_TCPOPTS: 176298943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 176398943Sluigi break; 176498943Sluigi 176598943Sluigi case O_TCPWIN: 176698943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 176798943Sluigi break; 176898943Sluigi 176998943Sluigi case O_TCPACK: 177098943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 177198943Sluigi break; 177298943Sluigi 177398943Sluigi case O_TCPSEQ: 177498943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 177598943Sluigi break; 177698943Sluigi 177798943Sluigi case O_UID: 177898943Sluigi { 177998943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 178098943Sluigi 178198943Sluigi if (pwd) 178298943Sluigi printf(" uid %s", pwd->pw_name); 178398943Sluigi else 178498943Sluigi printf(" uid %u", cmd32->d[0]); 178598943Sluigi } 178698943Sluigi break; 178798943Sluigi 178898943Sluigi case O_GID: 178998943Sluigi { 179098943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 179198943Sluigi 179298943Sluigi if (grp) 179398943Sluigi printf(" gid %s", grp->gr_name); 179498943Sluigi else 179598943Sluigi printf(" gid %u", cmd32->d[0]); 179698943Sluigi } 179798943Sluigi break; 179898943Sluigi 1799133600Scsjp case O_JAIL: 1800133600Scsjp printf(" jail %d", cmd32->d[0]); 1801133600Scsjp break; 1802133600Scsjp 1803112250Scjc case O_VERREVPATH: 1804112250Scjc printf(" verrevpath"); 1805112250Scjc break; 1806116919Sluigi 1807128575Sandre case O_VERSRCREACH: 1808128575Sandre printf(" versrcreach"); 1809128575Sandre break; 1810128575Sandre 1811133387Sandre case O_ANTISPOOF: 1812133387Sandre printf(" antispoof"); 1813133387Sandre break; 1814133387Sandre 1815117241Sluigi case O_IPSEC: 1816117241Sluigi printf(" ipsec"); 1817117241Sluigi break; 1818117241Sluigi 1819117469Sluigi case O_NOP: 1820117626Sluigi comment = (char *)(cmd + 1); 1821117469Sluigi break; 1822117469Sluigi 182398943Sluigi case O_KEEP_STATE: 182498943Sluigi printf(" keep-state"); 182598943Sluigi break; 182698943Sluigi 182798943Sluigi case O_LIMIT: 182898943Sluigi { 182998943Sluigi struct _s_x *p = limit_masks; 183098943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1831117328Sluigi uint8_t x = c->limit_mask; 1832117469Sluigi char const *comma = " "; 183398943Sluigi 183498943Sluigi printf(" limit"); 1835117577Sluigi for (; p->x != 0 ; p++) 183699909Sluigi if ((x & p->x) == p->x) { 183798943Sluigi x &= ~p->x; 183898943Sluigi printf("%s%s", comma, p->s); 183998943Sluigi comma = ","; 184098943Sluigi } 184198943Sluigi printf(" %d", c->conn_limit); 184298943Sluigi } 184398943Sluigi break; 184498943Sluigi 1845146894Smlaier case O_IP6: 1846145246Sbrooks printf(" ipv6"); 1847145246Sbrooks break; 1848145246Sbrooks 1849146894Smlaier case O_IP4: 1850146894Smlaier printf(" ipv4"); 1851146894Smlaier break; 1852146894Smlaier 1853145246Sbrooks case O_ICMP6TYPE: 1854145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 1855145246Sbrooks break; 1856145246Sbrooks 1857145246Sbrooks case O_EXT_HDR: 1858145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 1859145246Sbrooks break; 1860145246Sbrooks 186198943Sluigi default: 186298943Sluigi printf(" [opcode %d len %d]", 186398943Sluigi cmd->opcode, cmd->len); 186498943Sluigi } 186598943Sluigi } 186698943Sluigi if (cmd->len & F_OR) { 186798943Sluigi printf(" or"); 186898943Sluigi or_block = 1; 186998943Sluigi } else if (or_block) { 187098943Sluigi printf(" }"); 187198943Sluigi or_block = 0; 187298943Sluigi } 187398943Sluigi } 1874102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 1875117626Sluigi if (comment) 1876117626Sluigi printf(" // %s", comment); 187798943Sluigi printf("\n"); 187898943Sluigi} 187998943Sluigi 188098943Sluigistatic void 1881112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 188298943Sluigi{ 188398943Sluigi struct protoent *pe; 188498943Sluigi struct in_addr a; 1885115793Sticso uint16_t rulenum; 188698943Sluigi 188798943Sluigi if (!do_expired) { 188898943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 188998943Sluigi return; 189098943Sluigi } 1891115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1892117328Sluigi printf("%05d", rulenum); 1893117469Sluigi if (pcwidth>0 || bcwidth>0) 1894117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 1895117328Sluigi align_uint64(&d->pcnt), bcwidth, 1896117328Sluigi align_uint64(&d->bcnt), d->expire); 189798943Sluigi switch (d->dyn_type) { 189898943Sluigi case O_LIMIT_PARENT: 189998943Sluigi printf(" PARENT %d", d->count); 190098943Sluigi break; 190198943Sluigi case O_LIMIT: 190298943Sluigi printf(" LIMIT"); 190398943Sluigi break; 190498943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1905106505Smaxim printf(" STATE"); 190698943Sluigi break; 190798943Sluigi } 190898943Sluigi 190998943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 191098943Sluigi printf(" %s", pe->p_name); 191198943Sluigi else 191298943Sluigi printf(" proto %u", d->id.proto); 191398943Sluigi 191498943Sluigi a.s_addr = htonl(d->id.src_ip); 191598943Sluigi printf(" %s %d", inet_ntoa(a), d->id.src_port); 191698943Sluigi 191798943Sluigi a.s_addr = htonl(d->id.dst_ip); 191898943Sluigi printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 191998943Sluigi printf("\n"); 192098943Sluigi} 192198943Sluigi 1922117469Sluigistatic int 192398943Sluigisort_q(const void *pa, const void *pb) 192498943Sluigi{ 192598943Sluigi int rev = (do_sort < 0); 192698943Sluigi int field = rev ? -do_sort : do_sort; 192798943Sluigi long long res = 0; 192898943Sluigi const struct dn_flow_queue *a = pa; 192998943Sluigi const struct dn_flow_queue *b = pb; 193098943Sluigi 193198943Sluigi switch (field) { 193298943Sluigi case 1: /* pkts */ 193398943Sluigi res = a->len - b->len; 193498943Sluigi break; 193598943Sluigi case 2: /* bytes */ 193698943Sluigi res = a->len_bytes - b->len_bytes; 193798943Sluigi break; 193898943Sluigi 193998943Sluigi case 3: /* tot pkts */ 194098943Sluigi res = a->tot_pkts - b->tot_pkts; 194198943Sluigi break; 194298943Sluigi 194398943Sluigi case 4: /* tot bytes */ 194498943Sluigi res = a->tot_bytes - b->tot_bytes; 194598943Sluigi break; 194698943Sluigi } 194798943Sluigi if (res < 0) 194898943Sluigi res = -1; 194998943Sluigi if (res > 0) 195098943Sluigi res = 1; 195198943Sluigi return (int)(rev ? res : -res); 195298943Sluigi} 195398943Sluigi 195498943Sluigistatic void 195598943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 195698943Sluigi{ 195798943Sluigi int l; 1958145246Sbrooks int index_printed, indexes = 0; 1959145246Sbrooks char buff[255]; 1960145246Sbrooks struct protoent *pe; 196198943Sluigi 196298943Sluigi if (fs->rq_elements == 0) 196398943Sluigi return; 196498943Sluigi 196598943Sluigi if (do_sort != 0) 196698943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 1967145246Sbrooks 1968145246Sbrooks /* Print IPv4 flows */ 1969145246Sbrooks index_printed = 0; 197098943Sluigi for (l = 0; l < fs->rq_elements; l++) { 197198943Sluigi struct in_addr ina; 197298943Sluigi 1973145246Sbrooks /* XXX: Should check for IPv4 flows */ 1974145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 1975145246Sbrooks continue; 1976145246Sbrooks 1977145246Sbrooks if (!index_printed) { 1978145246Sbrooks index_printed = 1; 1979145246Sbrooks if (indexes > 0) /* currently a no-op */ 1980145246Sbrooks printf("\n"); 1981145246Sbrooks indexes++; 1982145246Sbrooks printf(" " 1983145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 1984145246Sbrooks fs->flow_mask.proto, 1985145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 1986145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 1987145246Sbrooks 1988145246Sbrooks printf("BKT Prot ___Source IP/port____ " 1989145246Sbrooks "____Dest. IP/port____ " 1990145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 1991145246Sbrooks } 1992145246Sbrooks 199398943Sluigi printf("%3d ", q[l].hash_slot); 199498943Sluigi pe = getprotobynumber(q[l].id.proto); 199598943Sluigi if (pe) 199698943Sluigi printf("%-4s ", pe->p_name); 199798943Sluigi else 199898943Sluigi printf("%4u ", q[l].id.proto); 1999145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 200098943Sluigi printf("%15s/%-5d ", 200198943Sluigi inet_ntoa(ina), q[l].id.src_port); 200298943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 200398943Sluigi printf("%15s/%-5d ", 200498943Sluigi inet_ntoa(ina), q[l].id.dst_port); 200598943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 200698943Sluigi q[l].tot_pkts, q[l].tot_bytes, 200798943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 200898943Sluigi if (verbose) 200998943Sluigi printf(" S %20qd F %20qd\n", 201098943Sluigi q[l].S, q[l].F); 201198943Sluigi } 2012145246Sbrooks 2013145246Sbrooks /* Print IPv6 flows */ 2014145246Sbrooks index_printed = 0; 2015145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2016145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2017145246Sbrooks continue; 2018145246Sbrooks 2019145246Sbrooks if (!index_printed) { 2020145246Sbrooks index_printed = 1; 2021145246Sbrooks if (indexes > 0) 2022145246Sbrooks printf("\n"); 2023145246Sbrooks indexes++; 2024145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2025145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2026145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2027145246Sbrooks buff, sizeof(buff)); 2028145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2029145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2030145246Sbrooks buff, sizeof(buff) ); 2031145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2032145246Sbrooks 2033145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2034145246Sbrooks "______________Source IPv6/port_______________ " 2035145246Sbrooks "_______________Dest. IPv6/port_______________ " 2036145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2037145246Sbrooks } 2038145246Sbrooks printf("%3d ", q[l].hash_slot); 2039145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2040145246Sbrooks if (pe != NULL) 2041145246Sbrooks printf("%9s ", pe->p_name); 2042145246Sbrooks else 2043145246Sbrooks printf("%9u ", q[l].id.proto); 2044145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2045145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2046145246Sbrooks q[l].id.src_port); 2047145246Sbrooks printf(" %39s/%-5d ", 2048145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2049145246Sbrooks q[l].id.dst_port); 2050145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2051145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2052145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2053145246Sbrooks if (verbose) 2054145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2055145246Sbrooks } 205698943Sluigi} 205798943Sluigi 205898943Sluigistatic void 205998943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 206098943Sluigi{ 206198943Sluigi int l; 206298943Sluigi char qs[30]; 206398943Sluigi char plr[30]; 206498943Sluigi char red[90]; /* Display RED parameters */ 206598943Sluigi 206698943Sluigi l = fs->qsize; 206798943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 206898943Sluigi if (l >= 8192) 206998943Sluigi sprintf(qs, "%d KB", l / 1024); 207098943Sluigi else 207198943Sluigi sprintf(qs, "%d B", l); 207298943Sluigi } else 207398943Sluigi sprintf(qs, "%3d sl.", l); 207498943Sluigi if (fs->plr) 207598943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 207698943Sluigi else 207798943Sluigi plr[0] = '\0'; 207898943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 207998943Sluigi sprintf(red, 208098943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 208198943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 208298943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 208398943Sluigi SCALE_VAL(fs->min_th), 208498943Sluigi SCALE_VAL(fs->max_th), 208598943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 208698943Sluigi else 208798943Sluigi sprintf(red, "droptail"); 208898943Sluigi 208998943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 209098943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 209198943Sluigi} 209298943Sluigi 209398943Sluigistatic void 2094117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 209598943Sluigi{ 2096117469Sluigi int rulenum; 209798943Sluigi void *next = data; 209898943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 209998943Sluigi struct dn_flow_set *fs; 210098943Sluigi struct dn_flow_queue *q; 210198943Sluigi int l; 210298943Sluigi 210398943Sluigi if (ac > 0) 210498943Sluigi rulenum = strtoul(*av++, NULL, 10); 210598943Sluigi else 210698943Sluigi rulenum = 0; 210798943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 210898943Sluigi double b = p->bandwidth; 210998943Sluigi char buf[30]; 211098943Sluigi char prefix[80]; 211198943Sluigi 211298943Sluigi if (p->next != (struct dn_pipe *)DN_IS_PIPE) 211398943Sluigi break; /* done with pipes, now queues */ 211498943Sluigi 211598943Sluigi /* 211698943Sluigi * compute length, as pipe have variable size 211798943Sluigi */ 211898943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2119117469Sluigi next = (char *)p + l; 212098943Sluigi nbytes -= l; 212198943Sluigi 2122134225Spjd if ((rulenum != 0 && rulenum != p->pipe_nr) || do_pipe == 2) 212398943Sluigi continue; 212498943Sluigi 212598943Sluigi /* 212698943Sluigi * Print rate (or clocking interface) 212798943Sluigi */ 212898943Sluigi if (p->if_name[0] != '\0') 212998943Sluigi sprintf(buf, "%s", p->if_name); 213098943Sluigi else if (b == 0) 213198943Sluigi sprintf(buf, "unlimited"); 213298943Sluigi else if (b >= 1000000) 213398943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 213498943Sluigi else if (b >= 1000) 213598943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 213698943Sluigi else 213798943Sluigi sprintf(buf, "%7.3f bit/s ", b); 213898943Sluigi 213998943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 214098943Sluigi p->pipe_nr, buf, p->delay); 214198943Sluigi print_flowset_parms(&(p->fs), prefix); 214298943Sluigi if (verbose) 214398943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2144106505Smaxim 214598943Sluigi q = (struct dn_flow_queue *)(p+1); 214698943Sluigi list_queues(&(p->fs), q); 214798943Sluigi } 214898943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 214998943Sluigi char prefix[80]; 215098943Sluigi 215198943Sluigi if (fs->next != (struct dn_flow_set *)DN_IS_QUEUE) 215298943Sluigi break; 215398943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2154117469Sluigi next = (char *)fs + l; 215598943Sluigi nbytes -= l; 2156134225Spjd 2157134225Spjd if (rulenum != 0 && ((rulenum != fs->fs_nr && do_pipe == 2) || 2158134225Spjd (rulenum != fs->parent_nr && do_pipe == 1))) { 2159134225Spjd continue; 2160134225Spjd } 2161134225Spjd 216298943Sluigi q = (struct dn_flow_queue *)(fs+1); 216398943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 216498943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 216598943Sluigi print_flowset_parms(fs, prefix); 216698943Sluigi list_queues(fs, q); 216798943Sluigi } 216898943Sluigi} 216998943Sluigi 2170101978Sluigi/* 2171101978Sluigi * This one handles all set-related commands 2172101978Sluigi * ipfw set { show | enable | disable } 2173101978Sluigi * ipfw set swap X Y 2174101978Sluigi * ipfw set move X to Y 2175101978Sluigi * ipfw set move rule X to Y 2176101978Sluigi */ 217798943Sluigistatic void 2178101978Sluigisets_handler(int ac, char *av[]) 2179101978Sluigi{ 2180117328Sluigi uint32_t set_disable, masks[2]; 2181101978Sluigi int i, nbytes; 2182117328Sluigi uint16_t rulenum; 2183117328Sluigi uint8_t cmd, new_set; 2184101978Sluigi 2185101978Sluigi ac--; 2186101978Sluigi av++; 2187101978Sluigi 2188101978Sluigi if (!ac) 2189101978Sluigi errx(EX_USAGE, "set needs command"); 2190140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2191101978Sluigi void *data; 2192117469Sluigi char const *msg; 2193101978Sluigi 2194101978Sluigi nbytes = sizeof(struct ip_fw); 2195117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 2196117328Sluigi err(EX_OSERR, "calloc"); 2197119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2198101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2199115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2200115793Sticso &set_disable, sizeof(set_disable)); 2201101978Sluigi 2202117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2203117577Sluigi if ((set_disable & (1<<i))) { 2204101978Sluigi printf("%s %d", msg, i); 2205101978Sluigi msg = ""; 2206101978Sluigi } 2207101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2208117655Sluigi for (i = 0; i < RESVD_SET; i++) 2209117577Sluigi if (!(set_disable & (1<<i))) { 2210101978Sluigi printf("%s %d", msg, i); 2211101978Sluigi msg = ""; 2212101978Sluigi } 2213101978Sluigi printf("\n"); 2214140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2215101978Sluigi ac--; av++; 2216101978Sluigi if (ac != 2) 2217101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2218101978Sluigi rulenum = atoi(av[0]); 2219101978Sluigi new_set = atoi(av[1]); 2220117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2221101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2222117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2223101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2224101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2225117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2226140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2227101978Sluigi ac--; av++; 2228140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2229101978Sluigi cmd = 2; 2230101978Sluigi ac--; av++; 2231101978Sluigi } else 2232101978Sluigi cmd = 3; 2233140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2234101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2235101978Sluigi rulenum = atoi(av[0]); 2236101978Sluigi new_set = atoi(av[2]); 2237117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2238101978Sluigi (cmd == 2 && rulenum == 65535) ) 2239101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2240117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2241101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2242101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2243117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2244140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2245140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2246140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2247101978Sluigi 2248101978Sluigi ac--; av++; 2249101978Sluigi masks[0] = masks[1] = 0; 2250101978Sluigi 2251101978Sluigi while (ac) { 2252101978Sluigi if (isdigit(**av)) { 2253101978Sluigi i = atoi(*av); 2254117655Sluigi if (i < 0 || i > RESVD_SET) 2255101978Sluigi errx(EX_DATAERR, 2256101978Sluigi "invalid set number %d\n", i); 2257101978Sluigi masks[which] |= (1<<i); 2258140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2259101978Sluigi which = 0; 2260140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2261101978Sluigi which = 1; 2262101978Sluigi else 2263101978Sluigi errx(EX_DATAERR, 2264101978Sluigi "invalid set command %s\n", *av); 2265101978Sluigi av++; ac--; 2266101978Sluigi } 2267101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2268101978Sluigi errx(EX_DATAERR, 2269101978Sluigi "cannot enable and disable the same set\n"); 2270101978Sluigi 2271117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2272101978Sluigi if (i) 2273101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2274101978Sluigi } else 2275101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2276101978Sluigi} 2277101978Sluigi 2278101978Sluigistatic void 2279109126Sdillonsysctl_handler(int ac, char *av[], int which) 2280109126Sdillon{ 2281109126Sdillon ac--; 2282109126Sdillon av++; 2283109126Sdillon 2284119668Smaxim if (ac == 0) { 2285109126Sdillon warnx("missing keyword to enable/disable\n"); 2286140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2287116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2288116770Sluigi &which, sizeof(which)); 2289140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2290116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2291116770Sluigi &which, sizeof(which)); 2292140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2293116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2294116770Sluigi &which, sizeof(which)); 2295140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2296116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2297116770Sluigi &which, sizeof(which)); 2298140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2299116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2300116770Sluigi &which, sizeof(which)); 2301140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2302136071Sgreen altq_set_enabled(which); 2303109126Sdillon } else { 2304109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2305109126Sdillon } 2306109126Sdillon} 2307109126Sdillon 2308109126Sdillonstatic void 2309117469Sluigilist(int ac, char *av[], int show_counters) 231098943Sluigi{ 231198943Sluigi struct ip_fw *r; 231298943Sluigi ipfw_dyn_rule *dynrules, *d; 231398943Sluigi 2314117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2315117469Sluigi char *lim; 2316117469Sluigi void *data = NULL; 2317112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 231898943Sluigi int exitval = EX_OK; 231998943Sluigi int lac; 232098943Sluigi char **lav; 2321117469Sluigi u_long rnum, last; 232298943Sluigi char *endptr; 232398943Sluigi int seen = 0; 232498943Sluigi 232598943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 232698943Sluigi int nalloc = 1024; /* start somewhere... */ 232798943Sluigi 2328135036Smaxim last = 0; 2329135036Smaxim 2330117328Sluigi if (test_only) { 2331117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2332117328Sluigi return; 2333117328Sluigi } 2334117328Sluigi 233598943Sluigi ac--; 233698943Sluigi av++; 233798943Sluigi 233898943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 233998943Sluigi nbytes = nalloc; 234098943Sluigi 234198943Sluigi while (nbytes >= nalloc) { 234298943Sluigi nalloc = nalloc * 2 + 200; 234398943Sluigi nbytes = nalloc; 234498943Sluigi if ((data = realloc(data, nbytes)) == NULL) 234598943Sluigi err(EX_OSERR, "realloc"); 2346119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 234798943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 234898943Sluigi do_pipe ? "DUMMYNET" : "FW"); 234998943Sluigi } 235098943Sluigi 235198943Sluigi if (do_pipe) { 235298943Sluigi list_pipes(data, nbytes, ac, av); 235398943Sluigi goto done; 235498943Sluigi } 235598943Sluigi 235698943Sluigi /* 235798943Sluigi * Count static rules. They have variable size so we 235898943Sluigi * need to scan the list to count them. 235998943Sluigi */ 2360117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2361117469Sluigi r->rulenum < 65535 && (char *)r < lim; 2362117469Sluigi ++nstat, r = NEXT(r) ) 236398943Sluigi ; /* nothing */ 236498943Sluigi 236598943Sluigi /* 236698943Sluigi * Count dynamic rules. This is easier as they have 236798943Sluigi * fixed size. 236898943Sluigi */ 2369117469Sluigi r = NEXT(r); 237098943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2371117469Sluigi n = (char *)r - (char *)data; 237298943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 237398943Sluigi 2374112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2375112189Smaxim bcwidth = pcwidth = 0; 2376117469Sluigi if (show_counters) { 2377117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2378112189Smaxim /* packet counter */ 2379115793Sticso width = snprintf(NULL, 0, "%llu", 2380115793Sticso align_uint64(&r->pcnt)); 2381112189Smaxim if (width > pcwidth) 2382112189Smaxim pcwidth = width; 2383112189Smaxim 2384112189Smaxim /* byte counter */ 2385115793Sticso width = snprintf(NULL, 0, "%llu", 2386115793Sticso align_uint64(&r->bcnt)); 2387112189Smaxim if (width > bcwidth) 2388112189Smaxim bcwidth = width; 2389112189Smaxim } 2390112189Smaxim } 2391112189Smaxim if (do_dynamic && ndyn) { 2392112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2393115793Sticso width = snprintf(NULL, 0, "%llu", 2394115793Sticso align_uint64(&d->pcnt)); 2395112189Smaxim if (width > pcwidth) 2396112189Smaxim pcwidth = width; 2397112189Smaxim 2398115793Sticso width = snprintf(NULL, 0, "%llu", 2399115793Sticso align_uint64(&d->bcnt)); 2400112189Smaxim if (width > bcwidth) 2401112189Smaxim bcwidth = width; 2402112189Smaxim } 2403112189Smaxim } 240498943Sluigi /* if no rule numbers were specified, list all rules */ 240598943Sluigi if (ac == 0) { 2406117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 2407112189Smaxim show_ipfw(r, pcwidth, bcwidth); 240898943Sluigi 240998943Sluigi if (do_dynamic && ndyn) { 241098943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 241198943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 2412112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 241398943Sluigi } 241498943Sluigi goto done; 241598943Sluigi } 241698943Sluigi 241798943Sluigi /* display specific rules requested on command line */ 241898943Sluigi 241998943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 242098943Sluigi /* convert command line rule # */ 2421117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2422117469Sluigi if (*endptr == '-') 2423117469Sluigi last = strtoul(endptr+1, &endptr, 10); 242498943Sluigi if (*endptr) { 242598943Sluigi exitval = EX_USAGE; 242698943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 242798943Sluigi continue; 242898943Sluigi } 2429117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2430117469Sluigi if (r->rulenum > last) 243198943Sluigi break; 2432117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2433112189Smaxim show_ipfw(r, pcwidth, bcwidth); 243498943Sluigi seen = 1; 243598943Sluigi } 243698943Sluigi } 243798943Sluigi if (!seen) { 243898943Sluigi /* give precedence to other error(s) */ 243998943Sluigi if (exitval == EX_OK) 244098943Sluigi exitval = EX_UNAVAILABLE; 244198943Sluigi warnx("rule %lu does not exist", rnum); 244298943Sluigi } 244398943Sluigi } 244498943Sluigi 244598943Sluigi if (do_dynamic && ndyn) { 244698943Sluigi printf("## Dynamic rules:\n"); 244798943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2448145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2449117469Sluigi if (*endptr == '-') 2450117469Sluigi last = strtoul(endptr+1, &endptr, 10); 245198943Sluigi if (*endptr) 245298943Sluigi /* already warned */ 245398943Sluigi continue; 245498943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2455115793Sticso uint16_t rulenum; 2456115793Sticso 2457115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2458115793Sticso if (rulenum > rnum) 245998943Sluigi break; 2460117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2461112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 246298943Sluigi } 246398943Sluigi } 246498943Sluigi } 246598943Sluigi 246698943Sluigi ac = 0; 246798943Sluigi 246898943Sluigidone: 246998943Sluigi free(data); 247098943Sluigi 247198943Sluigi if (exitval != EX_OK) 247298943Sluigi exit(exitval); 2473117469Sluigi#undef NEXT 247498943Sluigi} 247598943Sluigi 247698943Sluigistatic void 247798943Sluigishow_usage(void) 247898943Sluigi{ 247998943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 248098943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 248198943Sluigi); 248298943Sluigi exit(EX_USAGE); 248398943Sluigi} 248498943Sluigi 248598943Sluigistatic void 248698943Sluigihelp(void) 248798943Sluigi{ 2488117328Sluigi fprintf(stderr, 2489117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 2490123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 2491117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 2492117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 2493117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 2494117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 2495130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 249698943Sluigi"\n" 2497136071Sgreen"RULE-BODY: check-state [PARAMS] | ACTION [PARAMS] ADDR [OPTION_LIST]\n" 2498145246Sbrooks"ACTION: check-state | allow | count | deny | unreach CODE | skipto N |\n" 249998943Sluigi" {divert|tee} PORT | forward ADDR | pipe N | queue N\n" 2500136071Sgreen"PARAMS: [log [logamount LOGLIMIT]] [altq QUEUE_NAME]\n" 250198943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 2502145246Sbrooks" [ ip from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 2503145246Sbrooks" [ ipv6|ip6 from IP6ADDR [ PORT ] to IP6ADDR [ PORTLIST ] ]\n" 2504130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 2505145246Sbrooks"IP6ADDR: [not] { any | me | me6 | ip6/bits | IP6LIST }\n" 2506145246Sbrooks"IP6LIST: { ip6 | ip6/bits }[,IP6LIST]\n" 2507117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 2508117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 2509136247Sgreen"OPTION: bridged | diverted | diverted-loopback | diverted-output |\n" 2510145246Sbrooks" {dst-ip|src-ip} IPADDR | {dst-ip6|src-ip6|dst-ipv6|src-ipv6} IP6ADDR |\n" 2511145246Sbrooks" {dst-port|src-port} LIST |\n" 2512117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 2513117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 2514117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 2515145246Sbrooks" icmp6types LIST | ext6hdr LIST | flow-id N[,N] |\n" 2516117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 2517117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 2518136075Sgreen" tcpdatalen LIST | verrevpath | versrcreach | antispoof\n" 251998943Sluigi); 252098943Sluigiexit(0); 252198943Sluigi} 252298943Sluigi 252398943Sluigi 252498943Sluigistatic int 252598943Sluigilookup_host (char *host, struct in_addr *ipaddr) 252698943Sluigi{ 252798943Sluigi struct hostent *he; 252898943Sluigi 252998943Sluigi if (!inet_aton(host, ipaddr)) { 253098943Sluigi if ((he = gethostbyname(host)) == NULL) 253198943Sluigi return(-1); 253298943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 253398943Sluigi } 253498943Sluigi return(0); 253598943Sluigi} 253698943Sluigi 253798943Sluigi/* 253898943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 253998943Sluigi * Update length as appropriate. 254098943Sluigi * The following formats are allowed: 254198943Sluigi * me returns O_IP_*_ME 254298943Sluigi * 1.2.3.4 single IP address 254398943Sluigi * 1.2.3.4:5.6.7.8 address:mask 254498943Sluigi * 1.2.3.4/24 address/mask 254598943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2546117328Sluigi * We can have multiple comma-separated address/mask entries. 254798943Sluigi */ 254898943Sluigistatic void 254998943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 255098943Sluigi{ 2551117328Sluigi int len = 0; 2552117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 255398943Sluigi 255498943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 255598943Sluigi 2556140271Sbrooks if (_substrcmp(av, "any") == 0) 255798943Sluigi return; 255898943Sluigi 2559140271Sbrooks if (_substrcmp(av, "me") == 0) { 256098943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 256198943Sluigi return; 256298943Sluigi } 256398943Sluigi 2564140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2565130281Sru char *p = strchr(av + 6, ','); 2566130281Sru 2567130281Sru if (p) 2568130281Sru *p++ = '\0'; 2569130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2570130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2571130281Sru if (p) { 2572130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2573130281Sru d[0] = strtoul(p, NULL, 0); 2574130281Sru } else 2575130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2576130281Sru return; 2577130281Sru } 2578130281Sru 2579117328Sluigi while (av) { 2580117328Sluigi /* 2581117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2582117328Sluigi * ',' indicating another address follows, '{' indicating a 2583117328Sluigi * set of addresses of unspecified size. 2584117328Sluigi */ 2585117328Sluigi char *p = strpbrk(av, "/:,{"); 2586117328Sluigi int masklen; 2587117328Sluigi char md; 2588117328Sluigi 258998943Sluigi if (p) { 259098943Sluigi md = *p; 259198943Sluigi *p++ = '\0'; 2592117328Sluigi } else 2593117328Sluigi md = '\0'; 259498943Sluigi 2595117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 259698943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 259798943Sluigi switch (md) { 259898943Sluigi case ':': 2599117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 260098943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 260198943Sluigi break; 260298943Sluigi case '/': 2603117328Sluigi masklen = atoi(p); 2604117328Sluigi if (masklen == 0) 2605117328Sluigi d[1] = htonl(0); /* mask */ 2606117328Sluigi else if (masklen > 32) 260798943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 260898943Sluigi else 2609117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 261098943Sluigi break; 2611117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2612117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2613117328Sluigi *(--p) = md; 2614117328Sluigi break; 2615117328Sluigi 2616117328Sluigi case ',': /* single address plus continuation */ 2617117328Sluigi *(--p) = md; 2618117328Sluigi /* FALLTHROUGH */ 2619117328Sluigi case 0: /* initialization value */ 262098943Sluigi default: 2621117328Sluigi d[1] = htonl(~0); /* force /32 */ 262298943Sluigi break; 262398943Sluigi } 2624117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2625117328Sluigi /* find next separator */ 262698943Sluigi if (p) 2627117328Sluigi p = strpbrk(p, ",{"); 2628117328Sluigi if (p && *p == '{') { 2629117328Sluigi /* 2630117328Sluigi * We have a set of addresses. They are stored as follows: 2631117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2632117328Sluigi * addr is the base address IN HOST FORMAT 2633117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2634117328Sluigi * the next multiple of 32) with bits set 2635117328Sluigi * for each host in the map. 2636117328Sluigi */ 2637117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 263898943Sluigi int low, high; 2639117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 264098943Sluigi 2641117328Sluigi if (len > 0) 2642117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2643117328Sluigi if (i < 24 || i > 31) 2644117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2645117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2646117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 264798943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 264898943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2649101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2650117328Sluigi map[i] = 0; /* clear map */ 265198943Sluigi 2652117328Sluigi av = p + 1; 2653117328Sluigi low = d[0] & 0xff; 265498943Sluigi high = low + cmd->o.arg1 - 1; 2655117328Sluigi /* 2656117328Sluigi * Here, i stores the previous value when we specify a range 2657117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2658117328Sluigi * have no previous value. 2659117328Sluigi */ 2660116716Sluigi i = -1; /* previous value in a range */ 266198943Sluigi while (isdigit(*av)) { 266298943Sluigi char *s; 2663117328Sluigi int a = strtol(av, &s, 0); 266498943Sluigi 2665117328Sluigi if (s == av) { /* no parameter */ 2666117328Sluigi if (*av != '}') 2667117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2668117328Sluigi if (i != -1) 2669117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2670117328Sluigi break; 2671117328Sluigi } 2672117328Sluigi if (a < low || a > high) 2673117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 267498943Sluigi a, low, high); 267598943Sluigi a -= low; 2676116716Sluigi if (i == -1) /* no previous in range */ 2677116716Sluigi i = a; 2678116716Sluigi else { /* check that range is valid */ 2679116716Sluigi if (i > a) 2680116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2681116716Sluigi i+low, a+low); 2682116716Sluigi if (*s == '-') 2683116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2684116716Sluigi } 2685116716Sluigi for (; i <= a; i++) 2686117328Sluigi map[i/32] |= 1<<(i & 31); 2687116716Sluigi i = -1; 2688116716Sluigi if (*s == '-') 2689116716Sluigi i = a; 2690117328Sluigi else if (*s == '}') 2691116716Sluigi break; 269298943Sluigi av = s+1; 269398943Sluigi } 269498943Sluigi return; 269598943Sluigi } 2696117328Sluigi av = p; 2697117328Sluigi if (av) /* then *av must be a ',' */ 2698117328Sluigi av++; 269998943Sluigi 2700117328Sluigi /* Check this entry */ 2701117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2702117328Sluigi /* 2703117328Sluigi * 'any' turns the entire list into a NOP. 2704117328Sluigi * 'not any' never matches, so it is removed from the 2705117328Sluigi * list unless it is the only item, in which case we 2706117328Sluigi * report an error. 2707117328Sluigi */ 2708117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2709117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2710117328Sluigi errx(EX_DATAERR, "not any never matches"); 2711117328Sluigi } 2712117328Sluigi /* else do nothing and skip this entry */ 2713128067Smaxim return; 2714117328Sluigi } 2715117328Sluigi /* A single IP can be stored in an optimized format */ 2716117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 271798943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2718117328Sluigi return; 2719117328Sluigi } 2720117328Sluigi len += 2; /* two words... */ 2721117328Sluigi d += 2; 2722117328Sluigi } /* end while */ 2723117328Sluigi cmd->o.len |= len+1; 272498943Sluigi} 272598943Sluigi 272698943Sluigi 2727145246Sbrooks/* Try to find ipv6 address by hostname */ 2728145246Sbrooksstatic int 2729145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2730145246Sbrooks{ 2731145246Sbrooks struct hostent *he; 2732145246Sbrooks 2733145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2734145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2735145246Sbrooks return(-1); 2736145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2737145246Sbrooks } 2738145246Sbrooks return(0); 2739145246Sbrooks} 2740145246Sbrooks 2741145246Sbrooks 2742145246Sbrooks/* n2mask sets n bits of the mask */ 2743145246Sbrooksstatic void 2744145246Sbrooksn2mask(struct in6_addr *mask, int n) 2745145246Sbrooks{ 2746145246Sbrooks static int minimask[9] = 2747145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2748145246Sbrooks u_char *p; 2749145246Sbrooks 2750145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2751145246Sbrooks p = (u_char *) mask; 2752145246Sbrooks for (; n > 0; p++, n -= 8) { 2753145246Sbrooks if (n >= 8) 2754145246Sbrooks *p = 0xff; 2755145246Sbrooks else 2756145246Sbrooks *p = minimask[n]; 2757145246Sbrooks } 2758145246Sbrooks return; 2759145246Sbrooks} 2760145246Sbrooks 2761145246Sbrooks 276298943Sluigi/* 2763145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2764145246Sbrooks * Update length as appropriate. 2765145246Sbrooks * The following formats are allowed: 2766145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2767145246Sbrooks * me returns O_IP6_*_ME 2768145246Sbrooks * 2769145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2770145246Sbrooks * 03f1::234:123:0342/24 address/mask 2771145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2772145246Sbrooks * 2773145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2774145246Sbrooks * are typically random past the initial prefix. 2775145246Sbrooks * Return 1 on success, 0 on failure. 2776145246Sbrooks */ 2777145246Sbrooksstatic int 2778145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2779145246Sbrooks{ 2780145246Sbrooks int len = 0; 2781145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2782145246Sbrooks /* 2783145246Sbrooks * Needed for multiple address. 2784145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2785145246Sbrooks */ 2786145246Sbrooks 2787145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2788145246Sbrooks 2789145246Sbrooks if (strcmp(av, "any") == 0) 2790145246Sbrooks return (1); 2791145246Sbrooks 2792145246Sbrooks 2793145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2794145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2795145246Sbrooks return (1); 2796145246Sbrooks } 2797145246Sbrooks 2798145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2799145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2800145246Sbrooks return (1); 2801145246Sbrooks } 2802145246Sbrooks 2803145246Sbrooks av = strdup(av); 2804145246Sbrooks while (av) { 2805145246Sbrooks /* 2806145246Sbrooks * After the address we can have '/' indicating a mask, 2807145246Sbrooks * or ',' indicating another address follows. 2808145246Sbrooks */ 2809145246Sbrooks 2810145246Sbrooks char *p; 2811145246Sbrooks int masklen; 2812145246Sbrooks char md = '\0'; 2813145246Sbrooks 2814145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 2815145246Sbrooks md = *p; /* save the separator */ 2816145246Sbrooks *p = '\0'; /* terminate address string */ 2817145246Sbrooks p++; /* and skip past it */ 2818145246Sbrooks } 2819145246Sbrooks /* now p points to NULL, mask or next entry */ 2820145246Sbrooks 2821145246Sbrooks /* lookup stores address in *d as a side effect */ 2822145246Sbrooks if (lookup_host6(av, d) != 0) { 2823145246Sbrooks /* XXX: failed. Free memory and go */ 2824145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 2825145246Sbrooks } 2826145246Sbrooks /* next, look at the mask, if any */ 2827145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 2828145246Sbrooks if (masklen > 128 || masklen < 0) 2829145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 2830145246Sbrooks else 2831145246Sbrooks n2mask(&d[1], masklen); 2832145246Sbrooks 2833145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 2834145246Sbrooks 2835145246Sbrooks /* find next separator */ 2836145246Sbrooks 2837145246Sbrooks if (md == '/') { /* find separator past the mask */ 2838145246Sbrooks p = strpbrk(p, ","); 2839145246Sbrooks if (p != NULL) 2840145246Sbrooks p++; 2841145246Sbrooks } 2842145246Sbrooks av = p; 2843145246Sbrooks 2844145246Sbrooks /* Check this entry */ 2845145246Sbrooks if (masklen == 0) { 2846145246Sbrooks /* 2847145246Sbrooks * 'any' turns the entire list into a NOP. 2848145246Sbrooks * 'not any' never matches, so it is removed from the 2849145246Sbrooks * list unless it is the only item, in which case we 2850145246Sbrooks * report an error. 2851145246Sbrooks */ 2852145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 2853145246Sbrooks errx(EX_DATAERR, "not any never matches"); 2854145246Sbrooks continue; 2855145246Sbrooks } 2856145246Sbrooks 2857145246Sbrooks /* 2858145246Sbrooks * A single IP can be stored alone 2859145246Sbrooks */ 2860145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 2861145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 2862145246Sbrooks break; 2863145246Sbrooks } 2864145246Sbrooks 2865145246Sbrooks /* Update length and pointer to arguments */ 2866145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 2867145246Sbrooks d += 2; 2868145246Sbrooks } /* end while */ 2869145246Sbrooks 2870145246Sbrooks /* 2871145246Sbrooks * Total length of the command, remember that 1 is the size of 2872145246Sbrooks * the base command. 2873145246Sbrooks */ 2874145246Sbrooks cmd->o.len |= len+1; 2875145246Sbrooks free(av); 2876145246Sbrooks return (1); 2877145246Sbrooks} 2878145246Sbrooks 2879145246Sbrooks/* 2880145246Sbrooks * fills command for ipv6 flow-id filtering 2881145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 2882145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 2883145246Sbrooks * additional flow-id we want to filter, the basic is 1 2884145246Sbrooks */ 2885145246Sbrooksvoid 2886145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 2887145246Sbrooks{ 2888145246Sbrooks u_int32_t type; /* Current flow number */ 2889145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 2890145246Sbrooks char *s = av; 2891145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 2892145246Sbrooks 2893145246Sbrooks while (s) { 2894145246Sbrooks av = strsep( &s, ",") ; 2895145246Sbrooks type = strtoul(av, &av, 0); 2896145246Sbrooks if (*av != ',' && *av != '\0') 2897145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2898145246Sbrooks if (type > 0xfffff) 2899145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 2900145246Sbrooks cmd->d[nflow] |= type; 2901145246Sbrooks nflow++; 2902145246Sbrooks } 2903145246Sbrooks if( nflow > 0 ) { 2904145246Sbrooks cmd->o.opcode = O_FLOW6ID; 2905145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 2906145246Sbrooks cmd->o.arg1 = nflow; 2907145246Sbrooks } 2908145246Sbrooks else { 2909145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 2910145246Sbrooks } 2911145246Sbrooks} 2912145246Sbrooks 2913145246Sbrooksstatic ipfw_insn * 2914145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 2915145246Sbrooks{ 2916145246Sbrooks 2917145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2918145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2919145246Sbrooks ; 2920145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2921145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 2922145246Sbrooks } else if (F_LEN(cmd) == 2923145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2924145246Sbrooks /* single IP, no mask*/ 2925145246Sbrooks cmd->opcode = O_IP6_SRC; 2926145246Sbrooks } else { /* addr/mask opt */ 2927145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 2928145246Sbrooks } 2929145246Sbrooks return cmd; 2930145246Sbrooks} 2931145246Sbrooks 2932145246Sbrooksstatic ipfw_insn * 2933145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 2934145246Sbrooks{ 2935145246Sbrooks 2936145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 2937145246Sbrooks if (F_LEN(cmd) == 0) /* any */ 2938145246Sbrooks ; 2939145246Sbrooks if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 2940145246Sbrooks cmd->opcode = O_IP6_DST_ME; 2941145246Sbrooks } else if (F_LEN(cmd) == 2942145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 2943145246Sbrooks /* single IP, no mask*/ 2944145246Sbrooks cmd->opcode = O_IP6_DST; 2945145246Sbrooks } else { /* addr/mask opt */ 2946145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 2947145246Sbrooks } 2948145246Sbrooks return cmd; 2949145246Sbrooks} 2950145246Sbrooks 2951145246Sbrooks 2952145246Sbrooks/* 295398943Sluigi * helper function to process a set of flags and set bits in the 295498943Sluigi * appropriate masks. 295598943Sluigi */ 295698943Sluigistatic void 295798943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 295898943Sluigi struct _s_x *flags, char *p) 295998943Sluigi{ 2960117328Sluigi uint8_t set=0, clear=0; 296198943Sluigi 296298943Sluigi while (p && *p) { 296398943Sluigi char *q; /* points to the separator */ 296498943Sluigi int val; 2965117328Sluigi uint8_t *which; /* mask we are working on */ 296698943Sluigi 296798943Sluigi if (*p == '!') { 296898943Sluigi p++; 296998943Sluigi which = &clear; 297098943Sluigi } else 297198943Sluigi which = &set; 297298943Sluigi q = strchr(p, ','); 297398943Sluigi if (q) 297498943Sluigi *q++ = '\0'; 297598943Sluigi val = match_token(flags, p); 297698943Sluigi if (val <= 0) 297798943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 2978117328Sluigi *which |= (uint8_t)val; 297998943Sluigi p = q; 298098943Sluigi } 298198943Sluigi cmd->opcode = opcode; 298298943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 298398943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 298498943Sluigi} 298598943Sluigi 298698943Sluigi 298798943Sluigistatic void 298898943Sluigidelete(int ac, char *av[]) 298998943Sluigi{ 2990117328Sluigi uint32_t rulenum; 2991117469Sluigi struct dn_pipe p; 299298943Sluigi int i; 299398943Sluigi int exitval = EX_OK; 2994101628Sluigi int do_set = 0; 299598943Sluigi 2996117469Sluigi memset(&p, 0, sizeof p); 299798943Sluigi 299898943Sluigi av++; ac--; 2999130013Scsjp NEED1("missing rule specification"); 3000140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3001101978Sluigi do_set = 1; /* delete set */ 3002101628Sluigi ac--; av++; 3003101978Sluigi } 300498943Sluigi 300598943Sluigi /* Rule number */ 300698943Sluigi while (ac && isdigit(**av)) { 300798943Sluigi i = atoi(*av); av++; ac--; 300898943Sluigi if (do_pipe) { 300998943Sluigi if (do_pipe == 1) 3010117469Sluigi p.pipe_nr = i; 301198943Sluigi else 3012117469Sluigi p.fs.fs_nr = i; 3013117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 301498943Sluigi if (i) { 301598943Sluigi exitval = 1; 301698943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3017117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 301898943Sluigi } 301998943Sluigi } else { 3020101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3021117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 302298943Sluigi if (i) { 302398943Sluigi exitval = EX_UNAVAILABLE; 302498943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 302598943Sluigi rulenum); 302698943Sluigi } 302798943Sluigi } 302898943Sluigi } 302998943Sluigi if (exitval != EX_OK) 303098943Sluigi exit(exitval); 303198943Sluigi} 303298943Sluigi 303398943Sluigi 303498943Sluigi/* 303598943Sluigi * fill the interface structure. We do not check the name as we can 303698943Sluigi * create interfaces dynamically, so checking them at insert time 303798943Sluigi * makes relatively little sense. 3038121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3039121816Sbrooks * patterns which match interfaces. 304098943Sluigi */ 304198943Sluigistatic void 304298943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 304398943Sluigi{ 304498943Sluigi cmd->name[0] = '\0'; 304598943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 304698943Sluigi 304798943Sluigi /* Parse the interface or address */ 3048140271Sbrooks if (strcmp(arg, "any") == 0) 304998943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 305098943Sluigi else if (!isdigit(*arg)) { 3051121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3052121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 305398943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 305498943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 305598943Sluigi} 305698943Sluigi 305798943Sluigistatic void 305898943Sluigiconfig_pipe(int ac, char **av) 305998943Sluigi{ 3060117469Sluigi struct dn_pipe p; 306198943Sluigi int i; 306298943Sluigi char *end; 306398943Sluigi void *par = NULL; 306498943Sluigi 3065117469Sluigi memset(&p, 0, sizeof p); 306698943Sluigi 306798943Sluigi av++; ac--; 306898943Sluigi /* Pipe number */ 306998943Sluigi if (ac && isdigit(**av)) { 307098943Sluigi i = atoi(*av); av++; ac--; 307198943Sluigi if (do_pipe == 1) 3072117469Sluigi p.pipe_nr = i; 307398943Sluigi else 3074117469Sluigi p.fs.fs_nr = i; 307598943Sluigi } 307699475Sluigi while (ac > 0) { 307798943Sluigi double d; 307898943Sluigi int tok = match_token(dummynet_params, *av); 307998943Sluigi ac--; av++; 308098943Sluigi 308198943Sluigi switch(tok) { 3082101978Sluigi case TOK_NOERROR: 3083117469Sluigi p.fs.flags_fs |= DN_NOERROR; 3084101978Sluigi break; 3085101978Sluigi 308698943Sluigi case TOK_PLR: 308798943Sluigi NEED1("plr needs argument 0..1\n"); 308898943Sluigi d = strtod(av[0], NULL); 308998943Sluigi if (d > 1) 309098943Sluigi d = 1; 309198943Sluigi else if (d < 0) 309298943Sluigi d = 0; 3093117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 309498943Sluigi ac--; av++; 309598943Sluigi break; 309698943Sluigi 309798943Sluigi case TOK_QUEUE: 309898943Sluigi NEED1("queue needs queue size\n"); 309998943Sluigi end = NULL; 3100117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 310198943Sluigi if (*end == 'K' || *end == 'k') { 3102117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 3103117469Sluigi p.fs.qsize *= 1024; 3104140271Sbrooks } else if (*end == 'B' || 3105140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 3106117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 310798943Sluigi } 310898943Sluigi ac--; av++; 310998943Sluigi break; 311098943Sluigi 311198943Sluigi case TOK_BUCKETS: 311298943Sluigi NEED1("buckets needs argument\n"); 3113117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 311498943Sluigi ac--; av++; 311598943Sluigi break; 311698943Sluigi 311798943Sluigi case TOK_MASK: 311898943Sluigi NEED1("mask needs mask specifier\n"); 311998943Sluigi /* 312098943Sluigi * per-flow queue, mask is dst_ip, dst_port, 312198943Sluigi * src_ip, src_port, proto measured in bits 312298943Sluigi */ 312398943Sluigi par = NULL; 312498943Sluigi 3125145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 312698943Sluigi end = NULL; 312798943Sluigi 312898943Sluigi while (ac >= 1) { 3129117328Sluigi uint32_t *p32 = NULL; 3130117328Sluigi uint16_t *p16 = NULL; 3131145246Sbrooks uint32_t *p20 = NULL; 3132145246Sbrooks struct in6_addr *pa6 = NULL; 3133145246Sbrooks uint32_t a; 313498943Sluigi 313598943Sluigi tok = match_token(dummynet_params, *av); 313698943Sluigi ac--; av++; 313798943Sluigi switch(tok) { 313898943Sluigi case TOK_ALL: 313998943Sluigi /* 314098943Sluigi * special case, all bits significant 314198943Sluigi */ 3142117469Sluigi p.fs.flow_mask.dst_ip = ~0; 3143117469Sluigi p.fs.flow_mask.src_ip = ~0; 3144117469Sluigi p.fs.flow_mask.dst_port = ~0; 3145117469Sluigi p.fs.flow_mask.src_port = ~0; 3146117469Sluigi p.fs.flow_mask.proto = ~0; 3147145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 3148145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 3149145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 3150117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 315198943Sluigi goto end_mask; 315298943Sluigi 315398943Sluigi case TOK_DSTIP: 3154117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 315598943Sluigi break; 315698943Sluigi 315798943Sluigi case TOK_SRCIP: 3158117469Sluigi p32 = &p.fs.flow_mask.src_ip; 315998943Sluigi break; 316098943Sluigi 3161145246Sbrooks case TOK_DSTIP6: 3162145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 3163145246Sbrooks break; 3164145246Sbrooks 3165145246Sbrooks case TOK_SRCIP6: 3166145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 3167145246Sbrooks break; 3168145246Sbrooks 3169145246Sbrooks case TOK_FLOWID: 3170145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 3171145246Sbrooks break; 3172145246Sbrooks 317398943Sluigi case TOK_DSTPORT: 3174117469Sluigi p16 = &p.fs.flow_mask.dst_port; 317598943Sluigi break; 317698943Sluigi 317798943Sluigi case TOK_SRCPORT: 3178117469Sluigi p16 = &p.fs.flow_mask.src_port; 317998943Sluigi break; 318098943Sluigi 318198943Sluigi case TOK_PROTO: 318298943Sluigi break; 318398943Sluigi 318498943Sluigi default: 318598943Sluigi ac++; av--; /* backtrack */ 318698943Sluigi goto end_mask; 318798943Sluigi } 318898943Sluigi if (ac < 1) 318998943Sluigi errx(EX_USAGE, "mask: value missing"); 319098943Sluigi if (*av[0] == '/') { 319198943Sluigi a = strtoul(av[0]+1, &end, 0); 3192145246Sbrooks if (pa6 == NULL) 3193145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 3194106505Smaxim } else 319599909Sluigi a = strtoul(av[0], &end, 0); 319698943Sluigi if (p32 != NULL) 319798943Sluigi *p32 = a; 319898943Sluigi else if (p16 != NULL) { 3199139821Sbrooks if (a > 0xFFFF) 320098943Sluigi errx(EX_DATAERR, 3201144687Sbrooks "port mask must be 16 bit"); 3202117328Sluigi *p16 = (uint16_t)a; 3203145246Sbrooks } else if (p20 != NULL) { 3204145246Sbrooks if (a > 0xfffff) 3205145246Sbrooks errx(EX_DATAERR, 3206145246Sbrooks "flow_id mask must be 20 bit"); 3207145246Sbrooks *p20 = (uint32_t)a; 3208145246Sbrooks } else if (pa6 != NULL) { 3209145246Sbrooks if (a < 0 || a > 128) 3210145246Sbrooks errx(EX_DATAERR, 3211145246Sbrooks "in6addr invalid mask len"); 3212145246Sbrooks else 3213145246Sbrooks n2mask(pa6, a); 321498943Sluigi } else { 3215139821Sbrooks if (a > 0xFF) 321698943Sluigi errx(EX_DATAERR, 3217144687Sbrooks "proto mask must be 8 bit"); 3218117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 321998943Sluigi } 322098943Sluigi if (a != 0) 3221117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 322298943Sluigi ac--; av++; 322398943Sluigi } /* end while, config masks */ 322498943Sluigiend_mask: 322598943Sluigi break; 322698943Sluigi 322798943Sluigi case TOK_RED: 322898943Sluigi case TOK_GRED: 322998943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 3230117469Sluigi p.fs.flags_fs |= DN_IS_RED; 323198943Sluigi if (tok == TOK_GRED) 3232117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 323398943Sluigi /* 323498943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 323598943Sluigi */ 323698943Sluigi if ((end = strsep(&av[0], "/"))) { 323798943Sluigi double w_q = strtod(end, NULL); 323898943Sluigi if (w_q > 1 || w_q <= 0) 323998943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 3240117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 324198943Sluigi } 324298943Sluigi if ((end = strsep(&av[0], "/"))) { 3243117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 324498943Sluigi if (*end == 'K' || *end == 'k') 3245117469Sluigi p.fs.min_th *= 1024; 324698943Sluigi } 324798943Sluigi if ((end = strsep(&av[0], "/"))) { 3248117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 324998943Sluigi if (*end == 'K' || *end == 'k') 3250117469Sluigi p.fs.max_th *= 1024; 325198943Sluigi } 325298943Sluigi if ((end = strsep(&av[0], "/"))) { 325398943Sluigi double max_p = strtod(end, NULL); 325498943Sluigi if (max_p > 1 || max_p <= 0) 325598943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 3256117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 325798943Sluigi } 325898943Sluigi ac--; av++; 325998943Sluigi break; 326098943Sluigi 326198943Sluigi case TOK_DROPTAIL: 3262117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 326398943Sluigi break; 3264106505Smaxim 326598943Sluigi case TOK_BW: 326698943Sluigi NEED1("bw needs bandwidth or interface\n"); 326798943Sluigi if (do_pipe != 1) 326898943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 326998943Sluigi /* 327098943Sluigi * set clocking interface or bandwidth value 327198943Sluigi */ 327298943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 3273117469Sluigi int l = sizeof(p.if_name)-1; 327498943Sluigi /* interface name */ 3275117469Sluigi strncpy(p.if_name, av[0], l); 3276117469Sluigi p.if_name[l] = '\0'; 3277117469Sluigi p.bandwidth = 0; 327898943Sluigi } else { 3279117469Sluigi p.if_name[0] = '\0'; 3280117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 328198943Sluigi if (*end == 'K' || *end == 'k') { 328298943Sluigi end++; 3283117469Sluigi p.bandwidth *= 1000; 328498943Sluigi } else if (*end == 'M') { 328598943Sluigi end++; 3286117469Sluigi p.bandwidth *= 1000000; 328798943Sluigi } 3288140271Sbrooks if (*end == 'B' || 3289140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 3290117469Sluigi p.bandwidth *= 8; 3291117469Sluigi if (p.bandwidth < 0) 329298943Sluigi errx(EX_DATAERR, "bandwidth too large"); 329398943Sluigi } 329498943Sluigi ac--; av++; 329598943Sluigi break; 329698943Sluigi 329798943Sluigi case TOK_DELAY: 329898943Sluigi if (do_pipe != 1) 329998943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 330098943Sluigi NEED1("delay needs argument 0..10000ms\n"); 3301117469Sluigi p.delay = strtoul(av[0], NULL, 0); 330298943Sluigi ac--; av++; 330398943Sluigi break; 330498943Sluigi 330598943Sluigi case TOK_WEIGHT: 330698943Sluigi if (do_pipe == 1) 330798943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 330898943Sluigi NEED1("weight needs argument 0..100\n"); 3309117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 331098943Sluigi ac--; av++; 331198943Sluigi break; 331298943Sluigi 331398943Sluigi case TOK_PIPE: 331498943Sluigi if (do_pipe == 1) 331598943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 331698943Sluigi NEED1("pipe needs pipe_number\n"); 3317117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 331898943Sluigi ac--; av++; 331998943Sluigi break; 332098943Sluigi 332198943Sluigi default: 3322124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 332398943Sluigi } 332498943Sluigi } 332598943Sluigi if (do_pipe == 1) { 3326117469Sluigi if (p.pipe_nr == 0) 332798943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 3328117469Sluigi if (p.delay > 10000) 332998943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 333098943Sluigi } else { /* do_pipe == 2, queue */ 3331117469Sluigi if (p.fs.parent_nr == 0) 333298943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 3333117469Sluigi if (p.fs.weight >100) 333498943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 333598943Sluigi } 3336117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 3337117469Sluigi if (p.fs.qsize > 1024*1024) 333898943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 333998943Sluigi } else { 3340117469Sluigi if (p.fs.qsize > 100) 334198943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 334298943Sluigi } 3343117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 334498943Sluigi size_t len; 334598943Sluigi int lookup_depth, avg_pkt_size; 334698943Sluigi double s, idle, weight, w_q; 3347117469Sluigi struct clockinfo ck; 334898943Sluigi int t; 334998943Sluigi 3350117469Sluigi if (p.fs.min_th >= p.fs.max_th) 335198943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 3352117469Sluigi p.fs.min_th, p.fs.max_th); 3353117469Sluigi if (p.fs.max_th == 0) 335498943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 335598943Sluigi 335698943Sluigi len = sizeof(int); 335798943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 335898943Sluigi &lookup_depth, &len, NULL, 0) == -1) 335998943Sluigi 336098943Sluigi errx(1, "sysctlbyname(\"%s\")", 336198943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 336298943Sluigi if (lookup_depth == 0) 336398943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 336498943Sluigi " must be greater than zero"); 336598943Sluigi 336698943Sluigi len = sizeof(int); 336798943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 336898943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 336998943Sluigi 337098943Sluigi errx(1, "sysctlbyname(\"%s\")", 337198943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 337298943Sluigi if (avg_pkt_size == 0) 337398943Sluigi errx(EX_DATAERR, 337498943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 337598943Sluigi " be greater than zero"); 337698943Sluigi 337798943Sluigi len = sizeof(struct clockinfo); 3378117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 337998943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 338098943Sluigi 338198943Sluigi /* 338298943Sluigi * Ticks needed for sending a medium-sized packet. 338398943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 338498943Sluigi * do not have bandwidth information, because that is stored 338598943Sluigi * in the parent pipe, and also we have multiple queues 338698943Sluigi * competing for it. So we set s=0, which is not very 338798943Sluigi * correct. But on the other hand, why do we want RED with 338898943Sluigi * WF2Q+ ? 338998943Sluigi */ 3390117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 339198943Sluigi s = 0; 339298943Sluigi else 3393117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 339498943Sluigi 339598943Sluigi /* 339698943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 339798943Sluigi * NOTA: (3/w_q) is approx the value x so that 339898943Sluigi * (1-w_q)^x < 10^-3. 339998943Sluigi */ 3400117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 340198943Sluigi idle = s * 3. / w_q; 3402117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 3403117469Sluigi if (!p.fs.lookup_step) 3404117469Sluigi p.fs.lookup_step = 1; 340598943Sluigi weight = 1 - w_q; 3406117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 340798943Sluigi weight *= weight; 3408117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 340998943Sluigi } 3410117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 341198943Sluigi if (i) 341298943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 341398943Sluigi} 341498943Sluigi 341598943Sluigistatic void 3416117577Sluigiget_mac_addr_mask(char *p, uint8_t *addr, uint8_t *mask) 341798943Sluigi{ 341898943Sluigi int i, l; 341998943Sluigi 342098943Sluigi for (i=0; i<6; i++) 342198943Sluigi addr[i] = mask[i] = 0; 3422140271Sbrooks if (strcmp(p, "any") == 0) 342398943Sluigi return; 342498943Sluigi 342598943Sluigi for (i=0; *p && i<6;i++, p++) { 342698943Sluigi addr[i] = strtol(p, &p, 16); 342798943Sluigi if (*p != ':') /* we start with the mask */ 342898943Sluigi break; 342998943Sluigi } 343098943Sluigi if (*p == '/') { /* mask len */ 343198943Sluigi l = strtol(p+1, &p, 0); 343298943Sluigi for (i=0; l>0; l -=8, i++) 343398943Sluigi mask[i] = (l >=8) ? 0xff : (~0) << (8-l); 343498943Sluigi } else if (*p == '&') { /* mask */ 343598943Sluigi for (i=0, p++; *p && i<6;i++, p++) { 343698943Sluigi mask[i] = strtol(p, &p, 16); 343798943Sluigi if (*p != ':') 343898943Sluigi break; 343998943Sluigi } 344098943Sluigi } else if (*p == '\0') { 344198943Sluigi for (i=0; i<6; i++) 344298943Sluigi mask[i] = 0xff; 344398943Sluigi } 344498943Sluigi for (i=0; i<6; i++) 344598943Sluigi addr[i] &= mask[i]; 344698943Sluigi} 344798943Sluigi 344898943Sluigi/* 344998943Sluigi * helper function, updates the pointer to cmd with the length 345098943Sluigi * of the current command, and also cleans up the first word of 345198943Sluigi * the new command in case it has been clobbered before. 345298943Sluigi */ 345398943Sluigistatic ipfw_insn * 345498943Sluiginext_cmd(ipfw_insn *cmd) 345598943Sluigi{ 345698943Sluigi cmd += F_LEN(cmd); 345798943Sluigi bzero(cmd, sizeof(*cmd)); 345898943Sluigi return cmd; 345998943Sluigi} 346098943Sluigi 346198943Sluigi/* 3462117469Sluigi * Takes arguments and copies them into a comment 3463117469Sluigi */ 3464117469Sluigistatic void 3465117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 3466117469Sluigi{ 3467117469Sluigi int i, l; 3468117469Sluigi char *p = (char *)(cmd + 1); 3469117577Sluigi 3470117469Sluigi cmd->opcode = O_NOP; 3471117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 3472117469Sluigi 3473117469Sluigi /* Compute length of comment string. */ 3474117469Sluigi for (i = 0, l = 0; i < ac; i++) 3475117469Sluigi l += strlen(av[i]) + 1; 3476117469Sluigi if (l == 0) 3477117469Sluigi return; 3478117469Sluigi if (l > 84) 3479117469Sluigi errx(EX_DATAERR, 3480117469Sluigi "comment too long (max 80 chars)"); 3481117469Sluigi l = 1 + (l+3)/4; 3482117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 3483117469Sluigi for (i = 0; i < ac; i++) { 3484117469Sluigi strcpy(p, av[i]); 3485117469Sluigi p += strlen(av[i]); 3486117469Sluigi *p++ = ' '; 3487117469Sluigi } 3488117469Sluigi *(--p) = '\0'; 3489117469Sluigi} 3490117577Sluigi 3491117469Sluigi/* 349298943Sluigi * A function to fill simple commands of size 1. 349398943Sluigi * Existing flags are preserved. 349498943Sluigi */ 349598943Sluigistatic void 3496117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 349798943Sluigi{ 349898943Sluigi cmd->opcode = opcode; 349998943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 350098943Sluigi cmd->arg1 = arg; 350198943Sluigi} 350298943Sluigi 350398943Sluigi/* 350498943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 350598943Sluigi * two microinstructions, and returns the pointer to the last one. 350698943Sluigi */ 350798943Sluigistatic ipfw_insn * 350898943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 350998943Sluigi{ 3510102087Sluigi ipfw_insn_mac *mac; 351198943Sluigi 3512102087Sluigi if (ac < 2) 3513102098Sluigi errx(EX_DATAERR, "MAC dst src"); 351498943Sluigi 351598943Sluigi cmd->opcode = O_MACADDR2; 351698943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 351798943Sluigi 351898943Sluigi mac = (ipfw_insn_mac *)cmd; 3519101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 352098943Sluigi get_mac_addr_mask(av[1], &(mac->addr[6]), &(mac->mask[6])); /* src */ 3521102087Sluigi return cmd; 3522102087Sluigi} 352398943Sluigi 3524102087Sluigistatic ipfw_insn * 3525102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 3526102087Sluigi{ 3527102087Sluigi if (ac < 1) 3528102087Sluigi errx(EX_DATAERR, "missing MAC type"); 3529102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 3530102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 353198943Sluigi cmd->opcode = O_MAC_TYPE; 3532102087Sluigi return cmd; 3533102087Sluigi } else 3534102087Sluigi return NULL; 3535102087Sluigi} 353698943Sluigi 3537102087Sluigistatic ipfw_insn * 3538145246Sbrooksadd_proto(ipfw_insn *cmd, char *av, u_char *proto) 3539102087Sluigi{ 3540102087Sluigi struct protoent *pe; 3541102087Sluigi 3542145246Sbrooks *proto = IPPROTO_IP; 3543145246Sbrooks 3544140271Sbrooks if (_substrcmp(av, "all") == 0) 3545146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 3546146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 3547146894Smlaier /* explicit "just IPv4" rule */ 3548146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 3549146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 3550146894Smlaier /* explicit "just IPv6" rule */ 3551146894Smlaier *proto = IPPROTO_IPV6; 3552146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 3553146894Smlaier } else if ((*proto = atoi(av)) > 0) 3554102087Sluigi ; /* all done! */ 3555102087Sluigi else if ((pe = getprotobyname(av)) != NULL) 3556145246Sbrooks *proto = pe->p_proto; 3557102087Sluigi else 3558102098Sluigi return NULL; 3559145246Sbrooks if (*proto != IPPROTO_IP && *proto != IPPROTO_IPV6) 3560145246Sbrooks fill_cmd(cmd, O_PROTO, 0, *proto); 3561145246Sbrooks 356298943Sluigi return cmd; 356398943Sluigi} 356498943Sluigi 3565102087Sluigistatic ipfw_insn * 3566102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 3567102087Sluigi{ 3568102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3569102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3570102087Sluigi cmd->opcode = O_IP_SRC_SET; 3571130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3572130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 3573102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3574102087Sluigi cmd->opcode = O_IP_SRC_ME; 3575102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3576102087Sluigi cmd->opcode = O_IP_SRC; 3577117328Sluigi else /* addr/mask */ 3578102087Sluigi cmd->opcode = O_IP_SRC_MASK; 3579102087Sluigi return cmd; 3580102087Sluigi} 3581102087Sluigi 3582102087Sluigistatic ipfw_insn * 3583102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 3584102087Sluigi{ 3585102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 3586102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 3587102087Sluigi ; 3588130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 3589130281Sru ; 3590102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 3591102087Sluigi cmd->opcode = O_IP_DST_ME; 3592102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 3593102087Sluigi cmd->opcode = O_IP_DST; 3594117328Sluigi else /* addr/mask */ 3595102087Sluigi cmd->opcode = O_IP_DST_MASK; 3596102087Sluigi return cmd; 3597102087Sluigi} 3598102087Sluigi 3599102087Sluigistatic ipfw_insn * 3600102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 3601102087Sluigi{ 3602140271Sbrooks if (_substrcmp(av, "any") == 0) { 3603102087Sluigi return NULL; 3604102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 3605102087Sluigi /* XXX todo: check that we have a protocol with ports */ 3606102087Sluigi cmd->opcode = opcode; 3607102087Sluigi return cmd; 3608102087Sluigi } 3609102087Sluigi return NULL; 3610102087Sluigi} 3611102087Sluigi 3612145246Sbrooksstatic ipfw_insn * 3613145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 3614145246Sbrooks{ 3615145246Sbrooks struct in6_addr a; 3616145246Sbrooks 3617145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3618145246Sbrooks inet_pton(AF_INET6, av, &a)) 3619145246Sbrooks return add_srcip6(cmd, av); 3620145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3621145246Sbrooks if (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3622145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3623145246Sbrooks return add_srcip(cmd, av); 3624145246Sbrooks if (strcmp(av, "any") != 0) 3625145246Sbrooks return cmd; 3626145246Sbrooks 3627145246Sbrooks return NULL; 3628145246Sbrooks} 3629145246Sbrooks 3630145246Sbrooksstatic ipfw_insn * 3631145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 3632145246Sbrooks{ 3633145246Sbrooks struct in6_addr a; 3634145246Sbrooks 3635145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 3636145246Sbrooks inet_pton(AF_INET6, av, &a)) 3637145246Sbrooks return add_dstip6(cmd, av); 3638145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 3639145246Sbrooks if (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 3640145246Sbrooks !inet_pton(AF_INET6, av, &a)) 3641145246Sbrooks return add_dstip(cmd, av); 3642145246Sbrooks if (strcmp(av, "any") != 0) 3643145246Sbrooks return cmd; 3644145246Sbrooks 3645145246Sbrooks return NULL; 3646145246Sbrooks} 3647145246Sbrooks 364898943Sluigi/* 364998943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 365098943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 365198943Sluigi * into the actual rule. 365298943Sluigi * 3653136071Sgreen * The syntax for a rule starts with the action, followed by 3654136071Sgreen * optional action parameters, and the various match patterns. 3655108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 365698943Sluigi * (generated if the rule includes a keep-state option), then the 3657136071Sgreen * various match patterns, log/altq actions, and the actual action. 3658106505Smaxim * 365998943Sluigi */ 366098943Sluigistatic void 366198943Sluigiadd(int ac, char *av[]) 366298943Sluigi{ 366398943Sluigi /* 366498943Sluigi * rules are added into the 'rulebuf' and then copied in 366598943Sluigi * the correct order into the actual rule. 366698943Sluigi * Some things that need to go out of order (prob, action etc.) 366798943Sluigi * go into actbuf[]. 366898943Sluigi */ 3669117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 367098943Sluigi 3671117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 3672102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 367398943Sluigi 367498943Sluigi struct ip_fw *rule; 367598943Sluigi 367698943Sluigi /* 367798943Sluigi * various flags used to record that we entered some fields. 367898943Sluigi */ 3679101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 3680136071Sgreen ipfw_insn *have_log = NULL, *have_altq = NULL; 3681134475Smaxim size_t len; 368298943Sluigi 368398943Sluigi int i; 368498943Sluigi 368598943Sluigi int open_par = 0; /* open parenthesis ( */ 368698943Sluigi 368798943Sluigi /* proto is here because it is used to fetch ports */ 368898943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 368998943Sluigi 3690107289Sluigi double match_prob = 1; /* match probability, default is always match */ 3691107289Sluigi 369298943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 369398943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 369498943Sluigi bzero(rulebuf, sizeof(rulebuf)); 369598943Sluigi 369698943Sluigi rule = (struct ip_fw *)rulebuf; 369798943Sluigi cmd = (ipfw_insn *)cmdbuf; 369898943Sluigi action = (ipfw_insn *)actbuf; 369998943Sluigi 370098943Sluigi av++; ac--; 370198943Sluigi 370298943Sluigi /* [rule N] -- Rule number optional */ 370398943Sluigi if (ac && isdigit(**av)) { 370498943Sluigi rule->rulenum = atoi(*av); 370598943Sluigi av++; 370698943Sluigi ac--; 370798943Sluigi } 370898943Sluigi 3709117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 3710140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 3711101628Sluigi int set = strtoul(av[1], NULL, 10); 3712117655Sluigi if (set < 0 || set > RESVD_SET) 3713101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 3714101628Sluigi rule->set = set; 3715101628Sluigi av += 2; ac -= 2; 3716101628Sluigi } 3717101628Sluigi 371898943Sluigi /* [prob D] -- match probability, optional */ 3719140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 3720107289Sluigi match_prob = strtod(av[1], NULL); 372198943Sluigi 3722107289Sluigi if (match_prob <= 0 || match_prob > 1) 372398943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 372498943Sluigi av += 2; ac -= 2; 372598943Sluigi } 372698943Sluigi 372798943Sluigi /* action -- mandatory */ 372898943Sluigi NEED1("missing action"); 372998943Sluigi i = match_token(rule_actions, *av); 373098943Sluigi ac--; av++; 373198943Sluigi action->len = 1; /* default */ 373298943Sluigi switch(i) { 373398943Sluigi case TOK_CHECKSTATE: 3734101116Sluigi have_state = action; 373598943Sluigi action->opcode = O_CHECK_STATE; 373698943Sluigi break; 373798943Sluigi 373898943Sluigi case TOK_ACCEPT: 373998943Sluigi action->opcode = O_ACCEPT; 374098943Sluigi break; 374198943Sluigi 374298943Sluigi case TOK_DENY: 374398943Sluigi action->opcode = O_DENY; 374499475Sluigi action->arg1 = 0; 374598943Sluigi break; 374698943Sluigi 374799475Sluigi case TOK_REJECT: 374899475Sluigi action->opcode = O_REJECT; 374999475Sluigi action->arg1 = ICMP_UNREACH_HOST; 375099475Sluigi break; 375199475Sluigi 375299475Sluigi case TOK_RESET: 375399475Sluigi action->opcode = O_REJECT; 375499475Sluigi action->arg1 = ICMP_REJECT_RST; 375599475Sluigi break; 375699475Sluigi 375799475Sluigi case TOK_UNREACH: 375899475Sluigi action->opcode = O_REJECT; 375999475Sluigi NEED1("missing reject code"); 376099475Sluigi fill_reject_code(&action->arg1, *av); 376199475Sluigi ac--; av++; 376299475Sluigi break; 376399475Sluigi 376498943Sluigi case TOK_COUNT: 376598943Sluigi action->opcode = O_COUNT; 376698943Sluigi break; 376798943Sluigi 376898943Sluigi case TOK_QUEUE: 376998943Sluigi case TOK_PIPE: 377098943Sluigi action->len = F_INSN_SIZE(ipfw_insn_pipe); 377198943Sluigi case TOK_SKIPTO: 377298943Sluigi if (i == TOK_QUEUE) 377398943Sluigi action->opcode = O_QUEUE; 377498943Sluigi else if (i == TOK_PIPE) 377598943Sluigi action->opcode = O_PIPE; 377698943Sluigi else if (i == TOK_SKIPTO) 377798943Sluigi action->opcode = O_SKIPTO; 377898943Sluigi NEED1("missing skipto/pipe/queue number"); 377998943Sluigi action->arg1 = strtoul(*av, NULL, 10); 378098943Sluigi av++; ac--; 378198943Sluigi break; 378298943Sluigi 378398943Sluigi case TOK_DIVERT: 378498943Sluigi case TOK_TEE: 378598943Sluigi action->opcode = (i == TOK_DIVERT) ? O_DIVERT : O_TEE; 378698943Sluigi NEED1("missing divert/tee port"); 378798943Sluigi action->arg1 = strtoul(*av, NULL, 0); 378898943Sluigi if (action->arg1 == 0) { 378998943Sluigi struct servent *s; 379098943Sluigi setservent(1); 379198943Sluigi s = getservbyname(av[0], "divert"); 379298943Sluigi if (s != NULL) 379398943Sluigi action->arg1 = ntohs(s->s_port); 379498943Sluigi else 379598943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 379698943Sluigi } 379798943Sluigi ac--; av++; 379898943Sluigi break; 379998943Sluigi 3800141351Sglebius case TOK_NETGRAPH: 3801141351Sglebius case TOK_NGTEE: 3802141351Sglebius action->opcode = (i == TOK_NETGRAPH ) ? O_NETGRAPH : O_NGTEE; 3803141351Sglebius NEED1("missing netgraph cookie"); 3804141351Sglebius action->arg1 = strtoul(*av, NULL, 0); 3805141351Sglebius if (action->arg1 == 0) 3806141351Sglebius errx(EX_DATAERR, "illegal netgraph cookie"); 3807141351Sglebius ac--; av++; 3808141351Sglebius break; 3809141351Sglebius 381098943Sluigi case TOK_FORWARD: { 381198943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 381298943Sluigi char *s, *end; 381398943Sluigi 381498943Sluigi NEED1("missing forward address[:port]"); 381598943Sluigi 381698943Sluigi action->opcode = O_FORWARD_IP; 381798943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 381898943Sluigi 381998943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 382098943Sluigi p->sa.sin_family = AF_INET; 382198943Sluigi p->sa.sin_port = 0; 382298943Sluigi /* 382398943Sluigi * locate the address-port separator (':' or ',') 382498943Sluigi */ 382598943Sluigi s = strchr(*av, ':'); 382698943Sluigi if (s == NULL) 382798943Sluigi s = strchr(*av, ','); 382898943Sluigi if (s != NULL) { 382998943Sluigi *(s++) = '\0'; 383098943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 383198943Sluigi if (s == end) 383298943Sluigi errx(EX_DATAERR, 383398943Sluigi "illegal forwarding port ``%s''", s); 3834103241Sluigi p->sa.sin_port = (u_short)i; 383598943Sluigi } 383698943Sluigi lookup_host(*av, &(p->sa.sin_addr)); 383798943Sluigi } 383898943Sluigi ac--; av++; 383998943Sluigi break; 384098943Sluigi 3841117469Sluigi case TOK_COMMENT: 3842117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 3843117469Sluigi action->opcode = O_COUNT; 3844117469Sluigi ac++; av--; /* go back... */ 3845117469Sluigi break; 3846117469Sluigi 384798943Sluigi default: 3848102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 384998943Sluigi } 385098943Sluigi action = next_cmd(action); 385198943Sluigi 385298943Sluigi /* 3853136071Sgreen * [altq queuename] -- altq tag, optional 385498943Sluigi * [log [logamount N]] -- log, optional 385598943Sluigi * 3856136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 385798943Sluigi * skipped in the copy section to the end of the buffer. 385898943Sluigi */ 3859136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 3860136071Sgreen ac--; av++; 3861136071Sgreen switch (i) { 3862136071Sgreen case TOK_LOG: 3863136071Sgreen { 3864136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 3865136071Sgreen int l; 386698943Sluigi 3867136071Sgreen if (have_log) 3868136071Sgreen errx(EX_DATAERR, 3869136071Sgreen "log cannot be specified more than once"); 3870136071Sgreen have_log = (ipfw_insn *)c; 3871136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 3872136071Sgreen cmd->opcode = O_LOG; 3873140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 3874136071Sgreen ac--; av++; 3875136071Sgreen NEED1("logamount requires argument"); 3876136071Sgreen l = atoi(*av); 3877136071Sgreen if (l < 0) 3878136071Sgreen errx(EX_DATAERR, 3879136071Sgreen "logamount must be positive"); 3880136071Sgreen c->max_log = l; 3881136071Sgreen ac--; av++; 3882136071Sgreen } else { 3883136071Sgreen len = sizeof(c->max_log); 3884136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 3885136071Sgreen &c->max_log, &len, NULL, 0) == -1) 3886136071Sgreen errx(1, "sysctlbyname(\"%s\")", 3887136071Sgreen "net.inet.ip.fw.verbose_limit"); 3888136071Sgreen } 3889136071Sgreen } 3890136071Sgreen break; 3891136071Sgreen 3892136071Sgreen case TOK_ALTQ: 3893136071Sgreen { 3894136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 3895136071Sgreen 3896136071Sgreen NEED1("missing altq queue name"); 3897136071Sgreen if (have_altq) 3898136071Sgreen errx(EX_DATAERR, 3899136071Sgreen "altq cannot be specified more than once"); 3900136071Sgreen have_altq = (ipfw_insn *)a; 3901136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 3902136071Sgreen cmd->opcode = O_ALTQ; 3903136071Sgreen fill_altq_qid(&a->qid, *av); 390498943Sluigi ac--; av++; 3905136071Sgreen } 3906136071Sgreen break; 3907136071Sgreen 3908136071Sgreen default: 3909136071Sgreen abort(); 391098943Sluigi } 391198943Sluigi cmd = next_cmd(cmd); 391298943Sluigi } 391398943Sluigi 3914101116Sluigi if (have_state) /* must be a check-state, we are done */ 391598943Sluigi goto done; 391698943Sluigi 391798943Sluigi#define OR_START(target) \ 391898943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 391998943Sluigi if (open_par) \ 392098943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 3921101641Sluigi prev = NULL; \ 392298943Sluigi open_par = 1; \ 392398943Sluigi if ( (av[0])[1] == '\0') { \ 392498943Sluigi ac--; av++; \ 392598943Sluigi } else \ 392698943Sluigi (*av)++; \ 392798943Sluigi } \ 392898943Sluigi target: \ 392998943Sluigi 393098943Sluigi 393198943Sluigi#define CLOSE_PAR \ 393298943Sluigi if (open_par) { \ 393398943Sluigi if (ac && ( \ 3934140271Sbrooks strcmp(*av, ")") == 0 || \ 3935140271Sbrooks strcmp(*av, "}") == 0)) { \ 3936101641Sluigi prev = NULL; \ 393798943Sluigi open_par = 0; \ 393898943Sluigi ac--; av++; \ 393998943Sluigi } else \ 394098943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 394198943Sluigi } 3942106505Smaxim 394398943Sluigi#define NOT_BLOCK \ 3944140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 394598943Sluigi if (cmd->len & F_NOT) \ 394698943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 394798943Sluigi cmd->len |= F_NOT; \ 394898943Sluigi ac--; av++; \ 394998943Sluigi } 395098943Sluigi 395198943Sluigi#define OR_BLOCK(target) \ 3952140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 395398943Sluigi if (prev == NULL || open_par == 0) \ 395498943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 395598943Sluigi prev->len |= F_OR; \ 395698943Sluigi ac--; av++; \ 395798943Sluigi goto target; \ 395898943Sluigi } \ 395998943Sluigi CLOSE_PAR; 396098943Sluigi 3961102087Sluigi first_cmd = cmd; 3962102098Sluigi 3963102098Sluigi#if 0 396498943Sluigi /* 3965102087Sluigi * MAC addresses, optional. 3966102087Sluigi * If we have this, we skip the part "proto from src to dst" 3967102087Sluigi * and jump straight to the option parsing. 3968102087Sluigi */ 3969102087Sluigi NOT_BLOCK; 3970102087Sluigi NEED1("missing protocol"); 3971140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 3972140271Sbrooks _substrcmp(*av, "mac") == 0) { 3973102087Sluigi ac--; av++; /* the "MAC" keyword */ 3974102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 3975102087Sluigi cmd = next_cmd(cmd); 3976102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 3977102087Sluigi NOT_BLOCK; 3978102087Sluigi NEED1("missing mac type"); 3979102087Sluigi if (add_mactype(cmd, ac, av[0])) 3980102087Sluigi cmd = next_cmd(cmd); 3981102087Sluigi ac--; av++; /* any or mac-type */ 3982102087Sluigi goto read_options; 3983102087Sluigi } 3984102098Sluigi#endif 3985102087Sluigi 3986102087Sluigi /* 398798943Sluigi * protocol, mandatory 398898943Sluigi */ 398998943Sluigi OR_START(get_proto); 399098943Sluigi NOT_BLOCK; 399198943Sluigi NEED1("missing protocol"); 3992145246Sbrooks if (add_proto(cmd, *av, &proto)) { 3993102087Sluigi av++; ac--; 3994102087Sluigi if (F_LEN(cmd) == 0) /* plain IP */ 3995102087Sluigi proto = 0; 3996102087Sluigi else { 3997102087Sluigi proto = cmd->arg1; 3998102087Sluigi prev = cmd; 3999102087Sluigi cmd = next_cmd(cmd); 4000102087Sluigi } 4001102098Sluigi } else if (first_cmd != cmd) { 4002116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 4003102098Sluigi } else 4004102098Sluigi goto read_options; 400598943Sluigi OR_BLOCK(get_proto); 400698943Sluigi 400798943Sluigi /* 4008102087Sluigi * "from", mandatory 400998943Sluigi */ 4010140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 401198943Sluigi errx(EX_USAGE, "missing ``from''"); 401298943Sluigi ac--; av++; 401398943Sluigi 401498943Sluigi /* 401598943Sluigi * source IP, mandatory 401698943Sluigi */ 401798943Sluigi OR_START(source_ip); 401898943Sluigi NOT_BLOCK; /* optional "not" */ 401998943Sluigi NEED1("missing source address"); 4020145246Sbrooks if (add_src(cmd, *av, proto)) { 4021102087Sluigi ac--; av++; 4022102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4023102087Sluigi prev = cmd; 4024102087Sluigi cmd = next_cmd(cmd); 4025102087Sluigi } 4026145246Sbrooks } else 4027145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 402898943Sluigi OR_BLOCK(source_ip); 402998943Sluigi 403098943Sluigi /* 403198943Sluigi * source ports, optional 403298943Sluigi */ 403398943Sluigi NOT_BLOCK; /* optional "not" */ 4034101641Sluigi if (ac) { 4035140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4036102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4037102087Sluigi ac--; av++; 4038102087Sluigi if (F_LEN(cmd) != 0) 4039102087Sluigi cmd = next_cmd(cmd); 4040101641Sluigi } 404198943Sluigi } 404298943Sluigi 404398943Sluigi /* 4044102087Sluigi * "to", mandatory 404598943Sluigi */ 4046140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 404798943Sluigi errx(EX_USAGE, "missing ``to''"); 404898943Sluigi av++; ac--; 404998943Sluigi 405098943Sluigi /* 405198943Sluigi * destination, mandatory 405298943Sluigi */ 405398943Sluigi OR_START(dest_ip); 405498943Sluigi NOT_BLOCK; /* optional "not" */ 405598943Sluigi NEED1("missing dst address"); 4056145246Sbrooks if (add_dst(cmd, *av, proto)) { 4057102087Sluigi ac--; av++; 4058102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 4059102087Sluigi prev = cmd; 4060102087Sluigi cmd = next_cmd(cmd); 4061102087Sluigi } 4062145246Sbrooks } else 4063145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 406498943Sluigi OR_BLOCK(dest_ip); 406598943Sluigi 406698943Sluigi /* 406798943Sluigi * dest. ports, optional 406898943Sluigi */ 406998943Sluigi NOT_BLOCK; /* optional "not" */ 4070101641Sluigi if (ac) { 4071140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4072102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4073102087Sluigi ac--; av++; 4074102087Sluigi if (F_LEN(cmd) != 0) 4075102087Sluigi cmd = next_cmd(cmd); 4076101641Sluigi } 407798943Sluigi } 407898943Sluigi 407998943Sluigiread_options: 4080102087Sluigi if (ac && first_cmd == cmd) { 4081102087Sluigi /* 4082102087Sluigi * nothing specified so far, store in the rule to ease 4083102087Sluigi * printout later. 4084102087Sluigi */ 4085102087Sluigi rule->_pad = 1; 4086102087Sluigi } 408798943Sluigi prev = NULL; 408898943Sluigi while (ac) { 4089101641Sluigi char *s; 4090101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 409198943Sluigi 4092101641Sluigi s = *av; 4093101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 4094101641Sluigi 409598943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 409698943Sluigi if (cmd->len & F_NOT) 409798943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 409898943Sluigi cmd->len = F_NOT; 409998943Sluigi s++; 410098943Sluigi } 410198943Sluigi i = match_token(rule_options, s); 410298943Sluigi ac--; av++; 410398943Sluigi switch(i) { 410498943Sluigi case TOK_NOT: 410598943Sluigi if (cmd->len & F_NOT) 410698943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 410798943Sluigi cmd->len = F_NOT; 410898943Sluigi break; 410998943Sluigi 411098943Sluigi case TOK_OR: 4111101641Sluigi if (open_par == 0 || prev == NULL) 411298943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 411398943Sluigi prev->len |= F_OR; 411498943Sluigi break; 4115101641Sluigi 4116101641Sluigi case TOK_STARTBRACE: 4117101641Sluigi if (open_par) 4118101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 4119101641Sluigi open_par = 1; 4120101641Sluigi break; 4121101641Sluigi 4122101641Sluigi case TOK_ENDBRACE: 4123101641Sluigi if (!open_par) 4124101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 4125101641Sluigi open_par = 0; 4126102087Sluigi prev = NULL; 4127101641Sluigi break; 4128101641Sluigi 412998943Sluigi case TOK_IN: 413098943Sluigi fill_cmd(cmd, O_IN, 0, 0); 413198943Sluigi break; 413298943Sluigi 413398943Sluigi case TOK_OUT: 413498943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 413598943Sluigi fill_cmd(cmd, O_IN, 0, 0); 413698943Sluigi break; 413798943Sluigi 4138136073Sgreen case TOK_DIVERTED: 4139136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 4140136073Sgreen break; 4141136073Sgreen 4142136073Sgreen case TOK_DIVERTEDLOOPBACK: 4143136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 4144136073Sgreen break; 4145136073Sgreen 4146136073Sgreen case TOK_DIVERTEDOUTPUT: 4147136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 4148136073Sgreen break; 4149136073Sgreen 415098943Sluigi case TOK_FRAG: 415198943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 415298943Sluigi break; 415398943Sluigi 415498943Sluigi case TOK_LAYER2: 415598943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 415698943Sluigi break; 415798943Sluigi 415898943Sluigi case TOK_XMIT: 415998943Sluigi case TOK_RECV: 416098943Sluigi case TOK_VIA: 416198943Sluigi NEED1("recv, xmit, via require interface name" 416298943Sluigi " or address"); 416398943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 416498943Sluigi ac--; av++; 416598943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 416698943Sluigi break; 416798943Sluigi if (i == TOK_XMIT) 416898943Sluigi cmd->opcode = O_XMIT; 416998943Sluigi else if (i == TOK_RECV) 417098943Sluigi cmd->opcode = O_RECV; 417198943Sluigi else if (i == TOK_VIA) 417298943Sluigi cmd->opcode = O_VIA; 417398943Sluigi break; 417498943Sluigi 417599475Sluigi case TOK_ICMPTYPES: 417699475Sluigi NEED1("icmptypes requires list of types"); 417799475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 417899475Sluigi av++; ac--; 417999475Sluigi break; 4180145246Sbrooks 4181145246Sbrooks case TOK_ICMP6TYPES: 4182145246Sbrooks NEED1("icmptypes requires list of types"); 4183145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 4184145246Sbrooks av++; ac--; 4185145246Sbrooks break; 418699475Sluigi 418798943Sluigi case TOK_IPTTL: 418898943Sluigi NEED1("ipttl requires TTL"); 4189116690Sluigi if (strpbrk(*av, "-,")) { 4190116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 4191116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 4192116690Sluigi } else 4193116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 419498943Sluigi ac--; av++; 419598943Sluigi break; 419698943Sluigi 419798943Sluigi case TOK_IPID: 4198116690Sluigi NEED1("ipid requires id"); 4199116690Sluigi if (strpbrk(*av, "-,")) { 4200116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 4201116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 4202116690Sluigi } else 4203116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 420498943Sluigi ac--; av++; 420598943Sluigi break; 420698943Sluigi 420798943Sluigi case TOK_IPLEN: 420898943Sluigi NEED1("iplen requires length"); 4209116690Sluigi if (strpbrk(*av, "-,")) { 4210116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 4211116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 4212116690Sluigi } else 4213116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 421498943Sluigi ac--; av++; 421598943Sluigi break; 421698943Sluigi 421798943Sluigi case TOK_IPVER: 421898943Sluigi NEED1("ipver requires version"); 421998943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 422098943Sluigi ac--; av++; 422198943Sluigi break; 422298943Sluigi 422399475Sluigi case TOK_IPPRECEDENCE: 422499475Sluigi NEED1("ipprecedence requires value"); 422599475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 422699475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 422799475Sluigi ac--; av++; 422899475Sluigi break; 422999475Sluigi 423098943Sluigi case TOK_IPOPTS: 423198943Sluigi NEED1("missing argument for ipoptions"); 4232101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 423398943Sluigi ac--; av++; 423498943Sluigi break; 423598943Sluigi 423699475Sluigi case TOK_IPTOS: 423799475Sluigi NEED1("missing argument for iptos"); 4238101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 423999475Sluigi ac--; av++; 424099475Sluigi break; 424199475Sluigi 424298943Sluigi case TOK_UID: 424398943Sluigi NEED1("uid requires argument"); 424498943Sluigi { 424598943Sluigi char *end; 424698943Sluigi uid_t uid; 424798943Sluigi struct passwd *pwd; 424898943Sluigi 424998943Sluigi cmd->opcode = O_UID; 425098943Sluigi uid = strtoul(*av, &end, 0); 425198943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 425298943Sluigi if (pwd == NULL) 425398943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 4254106504Smaxim cmd32->d[0] = pwd->pw_uid; 4255135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 425698943Sluigi ac--; av++; 425798943Sluigi } 425898943Sluigi break; 425998943Sluigi 426098943Sluigi case TOK_GID: 426198943Sluigi NEED1("gid requires argument"); 426298943Sluigi { 426398943Sluigi char *end; 426498943Sluigi gid_t gid; 426598943Sluigi struct group *grp; 426698943Sluigi 426798943Sluigi cmd->opcode = O_GID; 426898943Sluigi gid = strtoul(*av, &end, 0); 426998943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 427098943Sluigi if (grp == NULL) 427198943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 4272106504Smaxim cmd32->d[0] = grp->gr_gid; 4273135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 427498943Sluigi ac--; av++; 427598943Sluigi } 427698943Sluigi break; 427798943Sluigi 4278133600Scsjp case TOK_JAIL: 4279133600Scsjp NEED1("jail requires argument"); 4280133600Scsjp { 4281133600Scsjp char *end; 4282133600Scsjp int jid; 4283133600Scsjp 4284133600Scsjp cmd->opcode = O_JAIL; 4285133600Scsjp jid = (int)strtol(*av, &end, 0); 4286133600Scsjp if (jid < 0 || *end != '\0') 4287133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 4288135554Scsjp cmd32->d[0] = (uint32_t)jid; 4289135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 4290133600Scsjp ac--; av++; 4291133600Scsjp } 4292133600Scsjp break; 4293133600Scsjp 429498943Sluigi case TOK_ESTAB: 429598943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 429698943Sluigi break; 429798943Sluigi 429898943Sluigi case TOK_SETUP: 429998943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 430098943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 430198943Sluigi break; 430298943Sluigi 4303136075Sgreen case TOK_TCPDATALEN: 4304136075Sgreen NEED1("tcpdatalen requires length"); 4305136075Sgreen if (strpbrk(*av, "-,")) { 4306136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 4307136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 4308136075Sgreen } else 4309136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 4310136075Sgreen strtoul(*av, NULL, 0)); 4311136075Sgreen ac--; av++; 4312136075Sgreen break; 4313136075Sgreen 431498943Sluigi case TOK_TCPOPTS: 431598943Sluigi NEED1("missing argument for tcpoptions"); 431698943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 431798943Sluigi ac--; av++; 431898943Sluigi break; 431998943Sluigi 432098943Sluigi case TOK_TCPSEQ: 432198943Sluigi case TOK_TCPACK: 432298943Sluigi NEED1("tcpseq/tcpack requires argument"); 432398943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 432498943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 432598943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 432698943Sluigi ac--; av++; 432798943Sluigi break; 432898943Sluigi 432998943Sluigi case TOK_TCPWIN: 433098943Sluigi NEED1("tcpwin requires length"); 433198943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 433298943Sluigi htons(strtoul(*av, NULL, 0))); 433398943Sluigi ac--; av++; 433498943Sluigi break; 433598943Sluigi 433698943Sluigi case TOK_TCPFLAGS: 433798943Sluigi NEED1("missing argument for tcpflags"); 433898943Sluigi cmd->opcode = O_TCPFLAGS; 433998943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 434098943Sluigi ac--; av++; 434198943Sluigi break; 434298943Sluigi 434398943Sluigi case TOK_KEEPSTATE: 4344101641Sluigi if (open_par) 4345101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 4346101641Sluigi "of an or block"); 434799909Sluigi if (have_state) 4348101116Sluigi errx(EX_USAGE, "only one of keep-state " 434999909Sluigi "and limit is allowed"); 4350101116Sluigi have_state = cmd; 435198943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 435298943Sluigi break; 435398943Sluigi 435498943Sluigi case TOK_LIMIT: 4355101641Sluigi if (open_par) 4356101641Sluigi errx(EX_USAGE, "limit cannot be part " 4357101641Sluigi "of an or block"); 435899909Sluigi if (have_state) 4359101116Sluigi errx(EX_USAGE, "only one of keep-state " 436099909Sluigi "and limit is allowed"); 4361101641Sluigi NEED1("limit needs mask and # of connections"); 4362101116Sluigi have_state = cmd; 436398943Sluigi { 436498943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 436598943Sluigi 436698943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 436798943Sluigi cmd->opcode = O_LIMIT; 436898943Sluigi c->limit_mask = 0; 436998943Sluigi c->conn_limit = 0; 437098943Sluigi for (; ac >1 ;) { 437198943Sluigi int val; 437298943Sluigi 437398943Sluigi val = match_token(limit_masks, *av); 437498943Sluigi if (val <= 0) 437598943Sluigi break; 437698943Sluigi c->limit_mask |= val; 437798943Sluigi ac--; av++; 437898943Sluigi } 437998943Sluigi c->conn_limit = atoi(*av); 438098943Sluigi if (c->conn_limit == 0) 438198943Sluigi errx(EX_USAGE, "limit: limit must be >0"); 438298943Sluigi if (c->limit_mask == 0) 438398943Sluigi errx(EX_USAGE, "missing limit mask"); 438498943Sluigi ac--; av++; 438598943Sluigi } 438698943Sluigi break; 438798943Sluigi 4388102087Sluigi case TOK_PROTO: 4389102087Sluigi NEED1("missing protocol"); 4390145246Sbrooks if (add_proto(cmd, *av, &proto)) { 4391102087Sluigi ac--; av++; 4392102098Sluigi } else 4393116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 4394116438Smaxim *av); 4395102087Sluigi break; 4396106505Smaxim 4397102087Sluigi case TOK_SRCIP: 4398102087Sluigi NEED1("missing source IP"); 4399102087Sluigi if (add_srcip(cmd, *av)) { 4400102087Sluigi ac--; av++; 4401102087Sluigi } 4402102087Sluigi break; 4403102087Sluigi 4404102087Sluigi case TOK_DSTIP: 4405102087Sluigi NEED1("missing destination IP"); 4406102087Sluigi if (add_dstip(cmd, *av)) { 4407102087Sluigi ac--; av++; 4408102087Sluigi } 4409102087Sluigi break; 4410102087Sluigi 4411145246Sbrooks case TOK_SRCIP6: 4412145246Sbrooks NEED1("missing source IP6"); 4413145246Sbrooks if (add_srcip6(cmd, *av)) { 4414145246Sbrooks ac--; av++; 4415145246Sbrooks } 4416145246Sbrooks break; 4417145246Sbrooks 4418145246Sbrooks case TOK_DSTIP6: 4419145246Sbrooks NEED1("missing destination IP6"); 4420145246Sbrooks if (add_dstip6(cmd, *av)) { 4421145246Sbrooks ac--; av++; 4422145246Sbrooks } 4423145246Sbrooks break; 4424145246Sbrooks 4425102087Sluigi case TOK_SRCPORT: 4426102087Sluigi NEED1("missing source port"); 4427140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4428102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 4429102087Sluigi ac--; av++; 4430102087Sluigi } else 4431102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 4432102087Sluigi break; 4433102087Sluigi 4434102087Sluigi case TOK_DSTPORT: 4435102087Sluigi NEED1("missing destination port"); 4436140271Sbrooks if (_substrcmp(*av, "any") == 0 || 4437102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 4438102087Sluigi ac--; av++; 4439102087Sluigi } else 4440102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 4441102087Sluigi *av); 4442102087Sluigi break; 4443102087Sluigi 4444102087Sluigi case TOK_MAC: 4445102087Sluigi if (add_mac(cmd, ac, av)) { 4446102087Sluigi ac -= 2; av += 2; 4447102087Sluigi } 4448102087Sluigi break; 4449102087Sluigi 4450102087Sluigi case TOK_MACTYPE: 4451102087Sluigi NEED1("missing mac type"); 4452102087Sluigi if (!add_mactype(cmd, ac, *av)) 4453116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 4454102087Sluigi ac--; av++; 4455102087Sluigi break; 4456102087Sluigi 4457112250Scjc case TOK_VERREVPATH: 4458112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 4459112250Scjc break; 4460116919Sluigi 4461128575Sandre case TOK_VERSRCREACH: 4462128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 4463128575Sandre break; 4464128575Sandre 4465133387Sandre case TOK_ANTISPOOF: 4466133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 4467133387Sandre break; 4468133387Sandre 4469117241Sluigi case TOK_IPSEC: 4470117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 4471117241Sluigi break; 4472117241Sluigi 4473145246Sbrooks case TOK_IPV6: 4474145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 4475145246Sbrooks break; 4476145246Sbrooks 4477146894Smlaier case TOK_IPV4: 4478146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4479146894Smlaier break; 4480146894Smlaier 4481145246Sbrooks case TOK_EXT6HDR: 4482145246Sbrooks fill_ext6hdr( cmd, *av ); 4483145246Sbrooks ac--; av++; 4484145246Sbrooks break; 4485145246Sbrooks 4486145246Sbrooks case TOK_FLOWID: 4487145246Sbrooks if (proto != IPPROTO_IPV6 ) 4488145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 4489145246Sbrooks "only for ipv6 protocol\n"); 4490145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 4491145246Sbrooks ac--; av++; 4492145246Sbrooks break; 4493145246Sbrooks 4494117469Sluigi case TOK_COMMENT: 4495117469Sluigi fill_comment(cmd, ac, av); 4496117469Sluigi av += ac; 4497117469Sluigi ac = 0; 4498117469Sluigi break; 4499117469Sluigi 450098943Sluigi default: 450198943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 450298943Sluigi } 450398943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 450498943Sluigi prev = cmd; 450598943Sluigi cmd = next_cmd(cmd); 450698943Sluigi } 450798943Sluigi } 450898943Sluigi 450998943Sluigidone: 451098943Sluigi /* 451198943Sluigi * Now copy stuff into the rule. 451298943Sluigi * If we have a keep-state option, the first instruction 451398943Sluigi * must be a PROBE_STATE (which is generated here). 451498943Sluigi * If we have a LOG option, it was stored as the first command, 451598943Sluigi * and now must be moved to the top of the action part. 451698943Sluigi */ 451798943Sluigi dst = (ipfw_insn *)rule->cmd; 451898943Sluigi 451998943Sluigi /* 4520107289Sluigi * First thing to write into the command stream is the match probability. 4521107289Sluigi */ 4522107289Sluigi if (match_prob != 1) { /* 1 means always match */ 4523107289Sluigi dst->opcode = O_PROB; 4524107289Sluigi dst->len = 2; 4525107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 4526107289Sluigi dst += dst->len; 4527107289Sluigi } 4528107289Sluigi 4529107289Sluigi /* 453098943Sluigi * generate O_PROBE_STATE if necessary 453198943Sluigi */ 4532101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 453398943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 453498943Sluigi dst = next_cmd(dst); 453598943Sluigi } 453698943Sluigi /* 4537136071Sgreen * copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ 453898943Sluigi */ 453998943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 454098943Sluigi i = F_LEN(src); 454198943Sluigi 4542101116Sluigi switch (src->opcode) { 4543101116Sluigi case O_LOG: 4544101116Sluigi case O_KEEP_STATE: 4545101116Sluigi case O_LIMIT: 4546136071Sgreen case O_ALTQ: 4547101116Sluigi break; 4548101116Sluigi default: 4549117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 455098943Sluigi dst += i; 455198943Sluigi } 455298943Sluigi } 455398943Sluigi 455498943Sluigi /* 4555101116Sluigi * put back the have_state command as last opcode 4556101116Sluigi */ 4557101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 4558101116Sluigi i = F_LEN(have_state); 4559117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 4560101116Sluigi dst += i; 4561101116Sluigi } 4562101116Sluigi /* 456398943Sluigi * start action section 456498943Sluigi */ 456598943Sluigi rule->act_ofs = dst - rule->cmd; 456698943Sluigi 456798943Sluigi /* 4568136071Sgreen * put back O_LOG, O_ALTQ if necessary 456998943Sluigi */ 4570136071Sgreen if (have_log) { 4571136071Sgreen i = F_LEN(have_log); 4572136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 457398943Sluigi dst += i; 457498943Sluigi } 4575136071Sgreen if (have_altq) { 4576136071Sgreen i = F_LEN(have_altq); 4577136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 4578136071Sgreen dst += i; 4579136071Sgreen } 458098943Sluigi /* 458198943Sluigi * copy all other actions 458298943Sluigi */ 458398943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 458498943Sluigi i = F_LEN(src); 4585117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 458698943Sluigi dst += i; 458798943Sluigi } 458898943Sluigi 4589117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 4590117469Sluigi i = (char *)dst - (char *)rule; 4591119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 459298943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 459398943Sluigi if (!do_quiet) 4594117469Sluigi show_ipfw(rule, 0, 0); 459598943Sluigi} 459698943Sluigi 459798943Sluigistatic void 4598117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 459998943Sluigi{ 460098943Sluigi int rulenum; 460198943Sluigi int failed = EX_OK; 4602117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 460398943Sluigi 460498943Sluigi av++; ac--; 460598943Sluigi 460698943Sluigi if (!ac) { 460798943Sluigi /* clear all entries */ 4608117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 4609117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 461098943Sluigi if (!do_quiet) 4611117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 4612117328Sluigi "Accounting cleared":"Logging counts reset"); 461398943Sluigi 461498943Sluigi return; 461598943Sluigi } 461698943Sluigi 461798943Sluigi while (ac) { 461898943Sluigi /* Rule number */ 461998943Sluigi if (isdigit(**av)) { 462098943Sluigi rulenum = atoi(*av); 462198943Sluigi av++; 462298943Sluigi ac--; 4623117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 4624117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 4625117328Sluigi rulenum, name); 462698943Sluigi failed = EX_UNAVAILABLE; 462798943Sluigi } else if (!do_quiet) 4628117328Sluigi printf("Entry %d %s.\n", rulenum, 4629117328Sluigi optname == IP_FW_ZERO ? 4630117328Sluigi "cleared" : "logging count reset"); 463198943Sluigi } else { 463298943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 463398943Sluigi } 463498943Sluigi } 463598943Sluigi if (failed != EX_OK) 463698943Sluigi exit(failed); 463798943Sluigi} 463898943Sluigi 463998943Sluigistatic void 4640117544Sluigiflush(int force) 464198943Sluigi{ 464298943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 464398943Sluigi 4644117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 464598943Sluigi int c; 464698943Sluigi 464798943Sluigi printf("Are you sure? [yn] "); 464898943Sluigi fflush(stdout); 464998943Sluigi do { 465098943Sluigi c = toupper(getc(stdin)); 465198943Sluigi while (c != '\n' && getc(stdin) != '\n') 465298943Sluigi if (feof(stdin)) 465398943Sluigi return; /* and do not flush */ 465498943Sluigi } while (c != 'Y' && c != 'N'); 465598943Sluigi printf("\n"); 465698943Sluigi if (c == 'N') /* user said no */ 465798943Sluigi return; 465898943Sluigi } 4659117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 466098943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 466198943Sluigi do_pipe ? "DUMMYNET" : "FW"); 466298943Sluigi if (!do_quiet) 466398943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 466498943Sluigi} 466598943Sluigi 4666117469Sluigi/* 4667117544Sluigi * Free a the (locally allocated) copy of command line arguments. 4668117469Sluigi */ 4669117544Sluigistatic void 4670117544Sluigifree_args(int ac, char **av) 4671117544Sluigi{ 4672117544Sluigi int i; 4673117544Sluigi 4674117544Sluigi for (i=0; i < ac; i++) 4675117544Sluigi free(av[i]); 4676117544Sluigi free(av); 4677117544Sluigi} 4678117544Sluigi 4679117544Sluigi/* 4680130281Sru * This one handles all table-related commands 4681130281Sru * ipfw table N add addr[/masklen] [value] 4682130281Sru * ipfw table N delete addr[/masklen] 4683130281Sru * ipfw table N flush 4684130281Sru * ipfw table N list 4685130281Sru */ 4686130281Srustatic void 4687130281Srutable_handler(int ac, char *av[]) 4688130281Sru{ 4689130281Sru ipfw_table_entry ent; 4690130281Sru ipfw_table *tbl; 4691130281Sru int do_add; 4692130281Sru char *p; 4693130281Sru socklen_t l; 4694130281Sru uint32_t a; 4695130281Sru 4696130281Sru ac--; av++; 4697130281Sru if (ac && isdigit(**av)) { 4698130281Sru ent.tbl = atoi(*av); 4699130281Sru ac--; av++; 4700130281Sru } else 4701130281Sru errx(EX_USAGE, "table number required"); 4702130281Sru NEED1("table needs command"); 4703140271Sbrooks if (_substrcmp(*av, "add") == 0 || 4704140271Sbrooks _substrcmp(*av, "delete") == 0) { 4705130281Sru do_add = **av == 'a'; 4706130281Sru ac--; av++; 4707130281Sru if (!ac) 4708130281Sru errx(EX_USAGE, "IP address required"); 4709130281Sru p = strchr(*av, '/'); 4710130281Sru if (p) { 4711130281Sru *p++ = '\0'; 4712130281Sru ent.masklen = atoi(p); 4713130281Sru if (ent.masklen > 32) 4714130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 4715130281Sru } else 4716130281Sru ent.masklen = 32; 4717130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 4718130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 4719130281Sru ac--; av++; 4720130281Sru if (do_add && ac) 4721130281Sru ent.value = strtoul(*av, NULL, 0); 4722130281Sru else 4723130281Sru ent.value = 0; 4724130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 4725130281Sru &ent, sizeof(ent)) < 0) 4726130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 4727130281Sru do_add ? "ADD" : "DEL"); 4728140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 4729130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 4730130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 4731140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 4732130281Sru a = ent.tbl; 4733130281Sru l = sizeof(a); 4734130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 4735130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 4736130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 4737130281Sru tbl = malloc(l); 4738130281Sru if (tbl == NULL) 4739130281Sru err(EX_OSERR, "malloc"); 4740130281Sru tbl->tbl = ent.tbl; 4741130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 4742130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 4743130281Sru for (a = 0; a < tbl->cnt; a++) { 4744130281Sru printf("%s/%u %u\n", 4745130281Sru inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 4746130281Sru tbl->ent[a].masklen, tbl->ent[a].value); 4747130281Sru } 4748130281Sru } else 4749130281Sru errx(EX_USAGE, "invalid table command %s", *av); 4750130281Sru} 4751130281Sru 4752130281Sru/* 4753117544Sluigi * Called with the arguments (excluding program name). 4754117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 4755117544Sluigi */ 475698943Sluigistatic int 4757117328Sluigiipfw_main(int oldac, char **oldav) 475898943Sluigi{ 4759117469Sluigi int ch, ac, save_ac; 4760117469Sluigi char **av, **save_av; 4761117469Sluigi int do_acct = 0; /* Show packet/byte count */ 4762117469Sluigi 4763117469Sluigi#define WHITESP " \t\f\v\n\r" 4764117544Sluigi if (oldac == 0) 4765117544Sluigi return 1; 4766117544Sluigi else if (oldac == 1) { 4767117328Sluigi /* 4768117328Sluigi * If we are called with a single string, try to split it into 4769117328Sluigi * arguments for subsequent parsing. 4770117328Sluigi * But first, remove spaces after a ',', by copying the string 4771117328Sluigi * in-place. 4772117328Sluigi */ 4773117469Sluigi char *arg = oldav[0]; /* The string... */ 4774117328Sluigi int l = strlen(arg); 4775117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 4776117328Sluigi int i, j; 4777117469Sluigi for (i = j = 0; i < l; i++) { 4778117469Sluigi if (arg[i] == '#') /* comment marker */ 4779117469Sluigi break; 4780117328Sluigi if (copy) { 4781117328Sluigi arg[j++] = arg[i]; 4782117469Sluigi copy = !index("," WHITESP, arg[i]); 4783117328Sluigi } else { 4784117469Sluigi copy = !index(WHITESP, arg[i]); 4785117328Sluigi if (copy) 4786117328Sluigi arg[j++] = arg[i]; 4787117328Sluigi } 4788117469Sluigi } 4789117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 4790117328Sluigi j--; 4791117328Sluigi l = j; /* the new argument length */ 4792117328Sluigi arg[j++] = '\0'; 4793117469Sluigi if (l == 0) /* empty string! */ 4794117544Sluigi return 1; 4795117328Sluigi 4796117328Sluigi /* 4797117328Sluigi * First, count number of arguments. Because of the previous 4798117469Sluigi * processing, this is just the number of blanks plus 1. 4799117328Sluigi */ 4800117469Sluigi for (i = 0, ac = 1; i < l; i++) 4801117469Sluigi if (index(WHITESP, arg[i]) != NULL) 4802117328Sluigi ac++; 4803117328Sluigi 4804117328Sluigi av = calloc(ac, sizeof(char *)); 4805117328Sluigi 4806117328Sluigi /* 4807117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 4808117328Sluigi * j is the initial character, i is the one past the end. 4809117328Sluigi */ 4810117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 4811117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 4812117328Sluigi if (i == l-1) 4813117328Sluigi i++; 4814117328Sluigi av[ac] = calloc(i-j+1, 1); 4815117328Sluigi bcopy(arg+j, av[ac], i-j); 4816117328Sluigi ac++; 4817117328Sluigi j = i + 1; 4818117328Sluigi } 4819117328Sluigi } else { 4820117328Sluigi /* 4821117328Sluigi * If an argument ends with ',' join with the next one. 4822117328Sluigi */ 4823117328Sluigi int first, i, l; 4824117328Sluigi 4825117328Sluigi av = calloc(oldac, sizeof(char *)); 4826117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 4827117328Sluigi char *arg = oldav[i]; 4828117328Sluigi int k = strlen(arg); 4829117328Sluigi 4830117328Sluigi l += k; 4831117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 4832117328Sluigi /* Time to copy. */ 4833117328Sluigi av[ac] = calloc(l+1, 1); 4834117328Sluigi for (l=0; first <= i; first++) { 4835117328Sluigi strcat(av[ac]+l, oldav[first]); 4836117328Sluigi l += strlen(oldav[first]); 4837117328Sluigi } 4838117328Sluigi ac++; 4839117328Sluigi l = 0; 4840117328Sluigi first = i+1; 4841117328Sluigi } 4842117328Sluigi } 4843117328Sluigi } 4844117328Sluigi 484598943Sluigi /* Set the force flag for non-interactive processes */ 4846123804Smaxim if (!do_force) 4847123804Smaxim do_force = !isatty(STDIN_FILENO); 484898943Sluigi 4849117469Sluigi /* Save arguments for final freeing of memory. */ 4850117469Sluigi save_ac = ac; 4851117469Sluigi save_av = av; 4852117469Sluigi 4853117469Sluigi optind = optreset = 0; 4854123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 485598943Sluigi switch (ch) { 485698943Sluigi case 'a': 485798943Sluigi do_acct = 1; 485898943Sluigi break; 4859117328Sluigi 4860123495Sluigi case 'b': 4861123495Sluigi comment_only = 1; 4862123495Sluigi do_compact = 1; 4863123495Sluigi break; 4864123495Sluigi 4865102098Sluigi case 'c': 4866102098Sluigi do_compact = 1; 4867102098Sluigi break; 4868117328Sluigi 486998943Sluigi case 'd': 487098943Sluigi do_dynamic = 1; 487198943Sluigi break; 4872117328Sluigi 487398943Sluigi case 'e': 487498943Sluigi do_expired = 1; 487598943Sluigi break; 4876117328Sluigi 487798943Sluigi case 'f': 487898943Sluigi do_force = 1; 487998943Sluigi break; 4880117328Sluigi 4881117328Sluigi case 'h': /* help */ 4882117544Sluigi free_args(save_ac, save_av); 4883117328Sluigi help(); 4884117328Sluigi break; /* NOTREACHED */ 4885117328Sluigi 4886117328Sluigi case 'n': 4887117328Sluigi test_only = 1; 4888117328Sluigi break; 4889117328Sluigi 489098943Sluigi case 'N': 489198943Sluigi do_resolv = 1; 489298943Sluigi break; 4893117328Sluigi 489498943Sluigi case 'q': 489598943Sluigi do_quiet = 1; 489698943Sluigi break; 4897117328Sluigi 4898117328Sluigi case 's': /* sort */ 4899117328Sluigi do_sort = atoi(optarg); 4900117328Sluigi break; 4901117328Sluigi 4902101628Sluigi case 'S': 4903101628Sluigi show_sets = 1; 4904101628Sluigi break; 4905117328Sluigi 490698943Sluigi case 't': 490798943Sluigi do_time = 1; 490898943Sluigi break; 4909117328Sluigi 4910117472Sluigi case 'T': 4911117472Sluigi do_time = 2; /* numeric timestamp */ 4912117472Sluigi break; 4913117472Sluigi 491498943Sluigi case 'v': /* verbose */ 4915117328Sluigi verbose = 1; 491698943Sluigi break; 4917117328Sluigi 491898943Sluigi default: 4919117544Sluigi free_args(save_ac, save_av); 4920117544Sluigi return 1; 492198943Sluigi } 492298943Sluigi 492398943Sluigi ac -= optind; 492498943Sluigi av += optind; 492598943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 492698943Sluigi 492798943Sluigi /* 4928117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 4929117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 4930117544Sluigi * In case, swap first and second argument to get the normal form. 4931117544Sluigi */ 4932117544Sluigi if (ac > 1 && isdigit(*av[0])) { 4933117544Sluigi char *p = av[0]; 4934117544Sluigi 4935117544Sluigi av[0] = av[1]; 4936117544Sluigi av[1] = p; 4937117544Sluigi } 4938117544Sluigi 4939117544Sluigi /* 494098943Sluigi * optional: pipe or queue 494198943Sluigi */ 4942117821Smaxim do_pipe = 0; 4943140271Sbrooks if (_substrcmp(*av, "pipe") == 0) 494498943Sluigi do_pipe = 1; 4945140271Sbrooks else if (_substrcmp(*av, "queue") == 0) 494698943Sluigi do_pipe = 2; 4947117544Sluigi if (do_pipe) { 494898943Sluigi ac--; 494998943Sluigi av++; 495098943Sluigi } 495198943Sluigi NEED1("missing command"); 495298943Sluigi 495398943Sluigi /* 4954117328Sluigi * For pipes and queues we normally say 'pipe NN config' 495598943Sluigi * but the code is easier to parse as 'pipe config NN' 495698943Sluigi * so we swap the two arguments. 495798943Sluigi */ 4958117469Sluigi if (do_pipe > 0 && ac > 1 && isdigit(*av[0])) { 495998943Sluigi char *p = av[0]; 4960117544Sluigi 496198943Sluigi av[0] = av[1]; 496298943Sluigi av[1] = p; 496398943Sluigi } 4964117328Sluigi 4965140271Sbrooks if (_substrcmp(*av, "add") == 0) 496698943Sluigi add(ac, av); 4967140271Sbrooks else if (do_pipe && _substrcmp(*av, "config") == 0) 496898943Sluigi config_pipe(ac, av); 4969140271Sbrooks else if (_substrcmp(*av, "delete") == 0) 497098943Sluigi delete(ac, av); 4971140271Sbrooks else if (_substrcmp(*av, "flush") == 0) 4972117544Sluigi flush(do_force); 4973140271Sbrooks else if (_substrcmp(*av, "zero") == 0) 4974117328Sluigi zero(ac, av, IP_FW_ZERO); 4975140271Sbrooks else if (_substrcmp(*av, "resetlog") == 0) 4976117328Sluigi zero(ac, av, IP_FW_RESETLOG); 4977140271Sbrooks else if (_substrcmp(*av, "print") == 0 || 4978140271Sbrooks _substrcmp(*av, "list") == 0) 4979117469Sluigi list(ac, av, do_acct); 4980140271Sbrooks else if (_substrcmp(*av, "set") == 0) 4981101978Sluigi sets_handler(ac, av); 4982140271Sbrooks else if (_substrcmp(*av, "table") == 0) 4983130281Sru table_handler(ac, av); 4984140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 4985109126Sdillon sysctl_handler(ac, av, 1); 4986140271Sbrooks else if (_substrcmp(*av, "disable") == 0) 4987109126Sdillon sysctl_handler(ac, av, 0); 4988140271Sbrooks else if (_substrcmp(*av, "show") == 0) 4989117469Sluigi list(ac, av, 1 /* show counters */); 4990117469Sluigi else 499198943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 4992117469Sluigi 4993117469Sluigi /* Free memory allocated in the argument parsing. */ 4994117544Sluigi free_args(save_ac, save_av); 499598943Sluigi return 0; 499698943Sluigi} 499798943Sluigi 499898943Sluigi 499998943Sluigistatic void 5000106505Smaximipfw_readfile(int ac, char *av[]) 500198943Sluigi{ 500298943Sluigi#define MAX_ARGS 32 500398943Sluigi char buf[BUFSIZ]; 5004117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 5005117469Sluigi int c, lineno=0; 500698943Sluigi FILE *f = NULL; 500798943Sluigi pid_t preproc = 0; 500898943Sluigi 5009117469Sluigi filename = av[ac-1]; 5010117469Sluigi 5011123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 501298943Sluigi switch(c) { 5013117469Sluigi case 'c': 5014117469Sluigi do_compact = 1; 5015117469Sluigi break; 5016117469Sluigi 5017123804Smaxim case 'f': 5018123804Smaxim do_force = 1; 5019123804Smaxim break; 5020123804Smaxim 5021117469Sluigi case 'N': 5022117469Sluigi do_resolv = 1; 5023117469Sluigi break; 5024117469Sluigi 5025117328Sluigi case 'n': 5026117328Sluigi test_only = 1; 5027117328Sluigi break; 5028117328Sluigi 502998943Sluigi case 'p': 503098943Sluigi cmd = optarg; 5031117469Sluigi /* 5032117469Sluigi * Skip previous args and delete last one, so we 5033117469Sluigi * pass all but the last argument to the preprocessor 5034117469Sluigi * via av[optind-1] 5035117469Sluigi */ 5036117469Sluigi av += optind - 1; 5037117469Sluigi ac -= optind - 1; 5038117469Sluigi av[ac-1] = NULL; 5039117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 504098943Sluigi break; 504198943Sluigi 504298943Sluigi case 'q': 5043117469Sluigi do_quiet = 1; 504498943Sluigi break; 504598943Sluigi 5046117469Sluigi case 'S': 5047117469Sluigi show_sets = 1; 5048117469Sluigi break; 5049117469Sluigi 505098943Sluigi default: 505198943Sluigi errx(EX_USAGE, "bad arguments, for usage" 505298943Sluigi " summary ``ipfw''"); 505398943Sluigi } 505498943Sluigi 5055117469Sluigi if (cmd != NULL) 5056108231Skbyanc break; 5057108231Skbyanc } 5058108231Skbyanc 5059117469Sluigi if (cmd == NULL && ac != optind + 1) { 5060117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 5061117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 5062108231Skbyanc } 5063108231Skbyanc 5064117469Sluigi if ((f = fopen(filename, "r")) == NULL) 5065117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 506698943Sluigi 5067117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 506898943Sluigi int pipedes[2]; 506998943Sluigi 507098943Sluigi if (pipe(pipedes) == -1) 507198943Sluigi err(EX_OSERR, "cannot create pipe"); 507298943Sluigi 5073117469Sluigi preproc = fork(); 5074117469Sluigi if (preproc == -1) 507598943Sluigi err(EX_OSERR, "cannot fork"); 507698943Sluigi 5077117577Sluigi if (preproc == 0) { 5078117469Sluigi /* 5079117469Sluigi * Child, will run the preprocessor with the 5080117469Sluigi * file on stdin and the pipe on stdout. 5081117469Sluigi */ 508298943Sluigi if (dup2(fileno(f), 0) == -1 508398943Sluigi || dup2(pipedes[1], 1) == -1) 508498943Sluigi err(EX_OSERR, "dup2()"); 508598943Sluigi fclose(f); 508698943Sluigi close(pipedes[1]); 508798943Sluigi close(pipedes[0]); 5088117469Sluigi execvp(cmd, av); 508998943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 5090117469Sluigi } else { /* parent, will reopen f as the pipe */ 509198943Sluigi fclose(f); 509298943Sluigi close(pipedes[1]); 509398943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 509498943Sluigi int savederrno = errno; 509598943Sluigi 509698943Sluigi (void)kill(preproc, SIGTERM); 509798943Sluigi errno = savederrno; 509898943Sluigi err(EX_OSERR, "fdopen()"); 509998943Sluigi } 510098943Sluigi } 510198943Sluigi } 510298943Sluigi 5103117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 5104117469Sluigi char linename[10]; 5105117469Sluigi char *args[1]; 5106117469Sluigi 510798943Sluigi lineno++; 510898943Sluigi sprintf(linename, "Line %d", lineno); 5109117328Sluigi setprogname(linename); /* XXX */ 5110117469Sluigi args[0] = buf; 5111117469Sluigi ipfw_main(1, args); 511298943Sluigi } 511398943Sluigi fclose(f); 5114117469Sluigi if (cmd != NULL) { 5115117469Sluigi int status; 5116117469Sluigi 511798943Sluigi if (waitpid(preproc, &status, 0) == -1) 511898943Sluigi errx(EX_OSERR, "waitpid()"); 511998943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 512098943Sluigi errx(EX_UNAVAILABLE, 512198943Sluigi "preprocessor exited with status %d", 512298943Sluigi WEXITSTATUS(status)); 512398943Sluigi else if (WIFSIGNALED(status)) 512498943Sluigi errx(EX_UNAVAILABLE, 512598943Sluigi "preprocessor exited with signal %d", 512698943Sluigi WTERMSIG(status)); 512798943Sluigi } 512898943Sluigi} 512998943Sluigi 513098943Sluigiint 513198943Sluigimain(int ac, char *av[]) 513298943Sluigi{ 513398943Sluigi /* 513498943Sluigi * If the last argument is an absolute pathname, interpret it 513598943Sluigi * as a file to be preprocessed. 513698943Sluigi */ 513798943Sluigi 513898943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 513998943Sluigi ipfw_readfile(ac, av); 5140117544Sluigi else { 5141117544Sluigi if (ipfw_main(ac-1, av+1)) 5142117544Sluigi show_usage(); 5143117544Sluigi } 514498943Sluigi return EX_OK; 514598943Sluigi} 5146