ipfw2.c revision 133600
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 133600 2004-08-12 22:06:55Z csjp $ 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> 3098943Sluigi 3198943Sluigi#include <ctype.h> 3298943Sluigi#include <err.h> 3398943Sluigi#include <errno.h> 3498943Sluigi#include <grp.h> 3598943Sluigi#include <limits.h> 3698943Sluigi#include <netdb.h> 3798943Sluigi#include <pwd.h> 3898943Sluigi#include <signal.h> 3998943Sluigi#include <stdio.h> 4098943Sluigi#include <stdlib.h> 4198943Sluigi#include <stdarg.h> 4298943Sluigi#include <string.h> 43117469Sluigi#include <timeconv.h> /* XXX do we need this ? */ 4498943Sluigi#include <unistd.h> 4598943Sluigi#include <sysexits.h> 4698943Sluigi 4798943Sluigi#include <net/if.h> 4898943Sluigi#include <netinet/in.h> 4998943Sluigi#include <netinet/in_systm.h> 5098943Sluigi#include <netinet/ip.h> 5198943Sluigi#include <netinet/ip_icmp.h> 5298943Sluigi#include <netinet/ip_fw.h> 5398943Sluigi#include <netinet/ip_dummynet.h> 5498943Sluigi#include <netinet/tcp.h> 5598943Sluigi#include <arpa/inet.h> 5698943Sluigi 57117328Sluigiint 5898943Sluigi do_resolv, /* Would try to resolve all */ 5998943Sluigi do_time, /* Show time stamps */ 6098943Sluigi do_quiet, /* Be quiet in add and flush */ 6198943Sluigi do_pipe, /* this cmd refers to a pipe */ 6298943Sluigi do_sort, /* field to sort results (0 = no) */ 6398943Sluigi do_dynamic, /* display dynamic rules */ 6498943Sluigi do_expired, /* display expired dynamic rules */ 65102098Sluigi do_compact, /* show rules in compact mode */ 66123804Smaxim do_force, /* do not ask for confirmation */ 67101628Sluigi show_sets, /* display rule sets */ 68117328Sluigi test_only, /* only check syntax */ 69123495Sluigi comment_only, /* only print action and comment */ 7098943Sluigi verbose; 7198943Sluigi 7298943Sluigi#define IP_MASK_ALL 0xffffffff 73130013Scsjp/* 74130013Scsjp * the following macro returns an error message if we run out of 75130013Scsjp * arguments. 76130013Scsjp */ 77130013Scsjp#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 7898943Sluigi 7998943Sluigi/* 80117328Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 81117328Sluigi * various places in the parser. Entries are stored in arrays, 82117328Sluigi * with an entry with s=NULL as terminator. 83117328Sluigi * The search routines are match_token() and match_value(). 84117328Sluigi * Often, an element with x=0 contains an error string. 8598943Sluigi * 8698943Sluigi */ 8798943Sluigistruct _s_x { 88117469Sluigi char const *s; 8998943Sluigi int x; 9098943Sluigi}; 9198943Sluigi 9298943Sluigistatic struct _s_x f_tcpflags[] = { 9398943Sluigi { "syn", TH_SYN }, 9498943Sluigi { "fin", TH_FIN }, 9598943Sluigi { "ack", TH_ACK }, 9698943Sluigi { "psh", TH_PUSH }, 9798943Sluigi { "rst", TH_RST }, 9898943Sluigi { "urg", TH_URG }, 9998943Sluigi { "tcp flag", 0 }, 10098943Sluigi { NULL, 0 } 10198943Sluigi}; 10298943Sluigi 10398943Sluigistatic struct _s_x f_tcpopts[] = { 10498943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 10598943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 10698943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 10798943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 10898943Sluigi { "ts", IP_FW_TCPOPT_TS }, 10998943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 11098943Sluigi { "cc", IP_FW_TCPOPT_CC }, 11198943Sluigi { "tcp option", 0 }, 11298943Sluigi { NULL, 0 } 11398943Sluigi}; 11498943Sluigi 11598943Sluigi/* 11698943Sluigi * IP options span the range 0 to 255 so we need to remap them 11798943Sluigi * (though in fact only the low 5 bits are significant). 11898943Sluigi */ 11998943Sluigistatic struct _s_x f_ipopts[] = { 12098943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 12198943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 12298943Sluigi { "rr", IP_FW_IPOPT_RR}, 12398943Sluigi { "ts", IP_FW_IPOPT_TS}, 12498943Sluigi { "ip option", 0 }, 12598943Sluigi { NULL, 0 } 12698943Sluigi}; 12798943Sluigi 12898943Sluigistatic struct _s_x f_iptos[] = { 12998943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 13098943Sluigi { "throughput", IPTOS_THROUGHPUT}, 13198943Sluigi { "reliability", IPTOS_RELIABILITY}, 13298943Sluigi { "mincost", IPTOS_MINCOST}, 13398943Sluigi { "congestion", IPTOS_CE}, 13498943Sluigi { "ecntransport", IPTOS_ECT}, 13598943Sluigi { "ip tos option", 0}, 13698943Sluigi { NULL, 0 } 13798943Sluigi}; 13898943Sluigi 13998943Sluigistatic struct _s_x limit_masks[] = { 14098943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 14198943Sluigi {"src-addr", DYN_SRC_ADDR}, 14298943Sluigi {"src-port", DYN_SRC_PORT}, 14398943Sluigi {"dst-addr", DYN_DST_ADDR}, 14498943Sluigi {"dst-port", DYN_DST_PORT}, 14598943Sluigi {NULL, 0} 14698943Sluigi}; 14798943Sluigi 14898943Sluigi/* 14998943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 15098943Sluigi * This is only used in this code. 15198943Sluigi */ 15298943Sluigi#define IPPROTO_ETHERTYPE 0x1000 15398943Sluigistatic struct _s_x ether_types[] = { 15498943Sluigi /* 15598943Sluigi * Note, we cannot use "-:&/" in the names because they are field 15698943Sluigi * separators in the type specifications. Also, we use s = NULL as 15798943Sluigi * end-delimiter, because a type of 0 can be legal. 15898943Sluigi */ 15998943Sluigi { "ip", 0x0800 }, 16098943Sluigi { "ipv4", 0x0800 }, 16198943Sluigi { "ipv6", 0x86dd }, 16298943Sluigi { "arp", 0x0806 }, 16398943Sluigi { "rarp", 0x8035 }, 16498943Sluigi { "vlan", 0x8100 }, 16598943Sluigi { "loop", 0x9000 }, 16698943Sluigi { "trail", 0x1000 }, 16798943Sluigi { "at", 0x809b }, 16898943Sluigi { "atalk", 0x809b }, 16998943Sluigi { "aarp", 0x80f3 }, 17098943Sluigi { "pppoe_disc", 0x8863 }, 17198943Sluigi { "pppoe_sess", 0x8864 }, 17298943Sluigi { "ipx_8022", 0x00E0 }, 17398943Sluigi { "ipx_8023", 0x0000 }, 17498943Sluigi { "ipx_ii", 0x8137 }, 17598943Sluigi { "ipx_snap", 0x8137 }, 17698943Sluigi { "ipx", 0x8137 }, 17798943Sluigi { "ns", 0x0600 }, 17898943Sluigi { NULL, 0 } 17998943Sluigi}; 18098943Sluigi 18198943Sluigistatic void show_usage(void); 18298943Sluigi 18398943Sluigienum tokens { 18498943Sluigi TOK_NULL=0, 18598943Sluigi 18698943Sluigi TOK_OR, 18798943Sluigi TOK_NOT, 188101641Sluigi TOK_STARTBRACE, 189101641Sluigi TOK_ENDBRACE, 19098943Sluigi 19198943Sluigi TOK_ACCEPT, 19298943Sluigi TOK_COUNT, 19398943Sluigi TOK_PIPE, 19498943Sluigi TOK_QUEUE, 19598943Sluigi TOK_DIVERT, 19698943Sluigi TOK_TEE, 19798943Sluigi TOK_FORWARD, 19898943Sluigi TOK_SKIPTO, 19998943Sluigi TOK_DENY, 20098943Sluigi TOK_REJECT, 20198943Sluigi TOK_RESET, 20298943Sluigi TOK_UNREACH, 20398943Sluigi TOK_CHECKSTATE, 20498943Sluigi 20598943Sluigi TOK_UID, 20698943Sluigi TOK_GID, 207133600Scsjp TOK_JAIL, 20898943Sluigi TOK_IN, 20998943Sluigi TOK_LIMIT, 21098943Sluigi TOK_KEEPSTATE, 21198943Sluigi TOK_LAYER2, 21298943Sluigi TOK_OUT, 21398943Sluigi TOK_XMIT, 21498943Sluigi TOK_RECV, 21598943Sluigi TOK_VIA, 21698943Sluigi TOK_FRAG, 21798943Sluigi TOK_IPOPTS, 21898943Sluigi TOK_IPLEN, 21998943Sluigi TOK_IPID, 22098943Sluigi TOK_IPPRECEDENCE, 22198943Sluigi TOK_IPTOS, 22298943Sluigi TOK_IPTTL, 22398943Sluigi TOK_IPVER, 22498943Sluigi TOK_ESTAB, 22598943Sluigi TOK_SETUP, 22698943Sluigi TOK_TCPFLAGS, 22798943Sluigi TOK_TCPOPTS, 22898943Sluigi TOK_TCPSEQ, 22998943Sluigi TOK_TCPACK, 23098943Sluigi TOK_TCPWIN, 23198943Sluigi TOK_ICMPTYPES, 232102087Sluigi TOK_MAC, 233102087Sluigi TOK_MACTYPE, 234112250Scjc TOK_VERREVPATH, 235128575Sandre TOK_VERSRCREACH, 236133387Sandre TOK_ANTISPOOF, 237117241Sluigi TOK_IPSEC, 238117469Sluigi TOK_COMMENT, 23998943Sluigi 24098943Sluigi TOK_PLR, 241101978Sluigi TOK_NOERROR, 24298943Sluigi TOK_BUCKETS, 24398943Sluigi TOK_DSTIP, 24498943Sluigi TOK_SRCIP, 24598943Sluigi TOK_DSTPORT, 24698943Sluigi TOK_SRCPORT, 24798943Sluigi TOK_ALL, 24898943Sluigi TOK_MASK, 24998943Sluigi TOK_BW, 25098943Sluigi TOK_DELAY, 25198943Sluigi TOK_RED, 25298943Sluigi TOK_GRED, 25398943Sluigi TOK_DROPTAIL, 25498943Sluigi TOK_PROTO, 25598943Sluigi TOK_WEIGHT, 25698943Sluigi}; 25798943Sluigi 25898943Sluigistruct _s_x dummynet_params[] = { 25998943Sluigi { "plr", TOK_PLR }, 260101978Sluigi { "noerror", TOK_NOERROR }, 26198943Sluigi { "buckets", TOK_BUCKETS }, 26298943Sluigi { "dst-ip", TOK_DSTIP }, 26398943Sluigi { "src-ip", TOK_SRCIP }, 26498943Sluigi { "dst-port", TOK_DSTPORT }, 26598943Sluigi { "src-port", TOK_SRCPORT }, 26698943Sluigi { "proto", TOK_PROTO }, 26798943Sluigi { "weight", TOK_WEIGHT }, 26898943Sluigi { "all", TOK_ALL }, 26998943Sluigi { "mask", TOK_MASK }, 27098943Sluigi { "droptail", TOK_DROPTAIL }, 27198943Sluigi { "red", TOK_RED }, 27298943Sluigi { "gred", TOK_GRED }, 27398943Sluigi { "bw", TOK_BW }, 27498943Sluigi { "bandwidth", TOK_BW }, 27598943Sluigi { "delay", TOK_DELAY }, 27699475Sluigi { "pipe", TOK_PIPE }, 27798943Sluigi { "queue", TOK_QUEUE }, 27898943Sluigi { "dummynet-params", TOK_NULL }, 279117328Sluigi { NULL, 0 } /* terminator */ 28098943Sluigi}; 28198943Sluigi 28298943Sluigistruct _s_x rule_actions[] = { 28398943Sluigi { "accept", TOK_ACCEPT }, 28498943Sluigi { "pass", TOK_ACCEPT }, 28598943Sluigi { "allow", TOK_ACCEPT }, 28698943Sluigi { "permit", TOK_ACCEPT }, 28798943Sluigi { "count", TOK_COUNT }, 28898943Sluigi { "pipe", TOK_PIPE }, 28998943Sluigi { "queue", TOK_QUEUE }, 29098943Sluigi { "divert", TOK_DIVERT }, 29198943Sluigi { "tee", TOK_TEE }, 29298943Sluigi { "fwd", TOK_FORWARD }, 29398943Sluigi { "forward", TOK_FORWARD }, 29498943Sluigi { "skipto", TOK_SKIPTO }, 29598943Sluigi { "deny", TOK_DENY }, 29698943Sluigi { "drop", TOK_DENY }, 29798943Sluigi { "reject", TOK_REJECT }, 29898943Sluigi { "reset", TOK_RESET }, 29999475Sluigi { "unreach", TOK_UNREACH }, 30098943Sluigi { "check-state", TOK_CHECKSTATE }, 301117469Sluigi { "//", TOK_COMMENT }, 302117328Sluigi { NULL, 0 } /* terminator */ 30398943Sluigi}; 30498943Sluigi 30598943Sluigistruct _s_x rule_options[] = { 30698943Sluigi { "uid", TOK_UID }, 30798943Sluigi { "gid", TOK_GID }, 308133600Scsjp { "jail", TOK_JAIL }, 30998943Sluigi { "in", TOK_IN }, 31098943Sluigi { "limit", TOK_LIMIT }, 31198943Sluigi { "keep-state", TOK_KEEPSTATE }, 31298943Sluigi { "bridged", TOK_LAYER2 }, 31398943Sluigi { "layer2", TOK_LAYER2 }, 31498943Sluigi { "out", TOK_OUT }, 31598943Sluigi { "xmit", TOK_XMIT }, 31698943Sluigi { "recv", TOK_RECV }, 31798943Sluigi { "via", TOK_VIA }, 31898943Sluigi { "fragment", TOK_FRAG }, 31998943Sluigi { "frag", TOK_FRAG }, 32098943Sluigi { "ipoptions", TOK_IPOPTS }, 32198943Sluigi { "ipopts", TOK_IPOPTS }, 32298943Sluigi { "iplen", TOK_IPLEN }, 32398943Sluigi { "ipid", TOK_IPID }, 32498943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 32598943Sluigi { "iptos", TOK_IPTOS }, 32698943Sluigi { "ipttl", TOK_IPTTL }, 32798943Sluigi { "ipversion", TOK_IPVER }, 32898943Sluigi { "ipver", TOK_IPVER }, 32998943Sluigi { "estab", TOK_ESTAB }, 33098943Sluigi { "established", TOK_ESTAB }, 33198943Sluigi { "setup", TOK_SETUP }, 33298943Sluigi { "tcpflags", TOK_TCPFLAGS }, 33398943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 33498943Sluigi { "tcpoptions", TOK_TCPOPTS }, 33598943Sluigi { "tcpopts", TOK_TCPOPTS }, 33698943Sluigi { "tcpseq", TOK_TCPSEQ }, 33798943Sluigi { "tcpack", TOK_TCPACK }, 33898943Sluigi { "tcpwin", TOK_TCPWIN }, 33999909Sluigi { "icmptype", TOK_ICMPTYPES }, 34098943Sluigi { "icmptypes", TOK_ICMPTYPES }, 341102087Sluigi { "dst-ip", TOK_DSTIP }, 342102087Sluigi { "src-ip", TOK_SRCIP }, 343102087Sluigi { "dst-port", TOK_DSTPORT }, 344102087Sluigi { "src-port", TOK_SRCPORT }, 345102087Sluigi { "proto", TOK_PROTO }, 346102087Sluigi { "MAC", TOK_MAC }, 347102087Sluigi { "mac", TOK_MAC }, 348102087Sluigi { "mac-type", TOK_MACTYPE }, 349112250Scjc { "verrevpath", TOK_VERREVPATH }, 350128575Sandre { "versrcreach", TOK_VERSRCREACH }, 351133387Sandre { "antispoof", TOK_ANTISPOOF }, 352117241Sluigi { "ipsec", TOK_IPSEC }, 353117469Sluigi { "//", TOK_COMMENT }, 35498943Sluigi 35598943Sluigi { "not", TOK_NOT }, /* pseudo option */ 35698943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 35798943Sluigi { "or", TOK_OR }, /* pseudo option */ 35898943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 359101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 360101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 361101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 362101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 363117328Sluigi { NULL, 0 } /* terminator */ 36498943Sluigi}; 36598943Sluigi 366117328Sluigistatic __inline uint64_t 367117328Sluigialign_uint64(uint64_t *pll) { 368117328Sluigi uint64_t ret; 369115793Sticso 370115793Sticso bcopy (pll, &ret, sizeof(ret)); 371115793Sticso return ret; 372129389Sstefanf} 373115793Sticso 374117328Sluigi/* 375117328Sluigi * conditionally runs the command. 376117328Sluigi */ 377117469Sluigistatic int 378119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 379117328Sluigi{ 380117328Sluigi static int s = -1; /* the socket */ 381117328Sluigi int i; 382117577Sluigi 383117328Sluigi if (test_only) 384117328Sluigi return 0; 385117328Sluigi 386117328Sluigi if (s == -1) 387117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 388117328Sluigi if (s < 0) 389117328Sluigi err(EX_UNAVAILABLE, "socket"); 390117328Sluigi 391117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 392130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 393130281Sru optname == IP_FW_TABLE_GETSIZE) 394117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 395117328Sluigi (socklen_t *)optlen); 396117328Sluigi else 397117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 398117328Sluigi return i; 399117328Sluigi} 400117328Sluigi 40198943Sluigi/** 40298943Sluigi * match_token takes a table and a string, returns the value associated 403117328Sluigi * with the string (-1 in case of failure). 40498943Sluigi */ 40598943Sluigistatic int 40698943Sluigimatch_token(struct _s_x *table, char *string) 40798943Sluigi{ 40898943Sluigi struct _s_x *pt; 409117469Sluigi uint i = strlen(string); 41098943Sluigi 41198943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 41298943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 41398943Sluigi return pt->x; 41498943Sluigi return -1; 415129389Sstefanf} 41698943Sluigi 417117328Sluigi/** 418117328Sluigi * match_value takes a table and a value, returns the string associated 419117328Sluigi * with the value (NULL in case of failure). 420117328Sluigi */ 421117469Sluigistatic char const * 422117469Sluigimatch_value(struct _s_x *p, int value) 42398943Sluigi{ 42498943Sluigi for (; p->s != NULL; p++) 42598943Sluigi if (p->x == value) 42698943Sluigi return p->s; 42798943Sluigi return NULL; 42898943Sluigi} 42998943Sluigi 43098943Sluigi/* 43198943Sluigi * prints one port, symbolic or numeric 43298943Sluigi */ 43398943Sluigistatic void 434117328Sluigiprint_port(int proto, uint16_t port) 43598943Sluigi{ 43698943Sluigi 43798943Sluigi if (proto == IPPROTO_ETHERTYPE) { 438117469Sluigi char const *s; 43998943Sluigi 44098943Sluigi if (do_resolv && (s = match_value(ether_types, port)) ) 44198943Sluigi printf("%s", s); 44298943Sluigi else 44398943Sluigi printf("0x%04x", port); 44498943Sluigi } else { 44598943Sluigi struct servent *se = NULL; 44698943Sluigi if (do_resolv) { 44798943Sluigi struct protoent *pe = getprotobynumber(proto); 44898943Sluigi 44998943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 45098943Sluigi } 45198943Sluigi if (se) 45298943Sluigi printf("%s", se->s_name); 45398943Sluigi else 45498943Sluigi printf("%d", port); 45598943Sluigi } 45698943Sluigi} 45798943Sluigi 458117328Sluigistruct _s_x _port_name[] = { 459117328Sluigi {"dst-port", O_IP_DSTPORT}, 460117328Sluigi {"src-port", O_IP_SRCPORT}, 461117328Sluigi {"ipid", O_IPID}, 462117328Sluigi {"iplen", O_IPLEN}, 463117328Sluigi {"ipttl", O_IPTTL}, 464117328Sluigi {"mac-type", O_MAC_TYPE}, 465117328Sluigi {NULL, 0} 466117328Sluigi}; 467117328Sluigi 46898943Sluigi/* 469117328Sluigi * Print the values in a list 16-bit items of the types above. 47098943Sluigi * XXX todo: add support for mask. 47198943Sluigi */ 47298943Sluigistatic void 473102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 47498943Sluigi{ 475117328Sluigi uint16_t *p = cmd->ports; 47698943Sluigi int i; 477117469Sluigi char const *sep; 47898943Sluigi 47998943Sluigi if (cmd->o.len & F_NOT) 48098943Sluigi printf(" not"); 481116690Sluigi if (opcode != 0) { 482117328Sluigi sep = match_value(_port_name, opcode); 483117328Sluigi if (sep == NULL) 484116690Sluigi sep = "???"; 485116690Sluigi printf (" %s", sep); 486116690Sluigi } 487116690Sluigi sep = " "; 48898943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 48998943Sluigi printf(sep); 49098943Sluigi print_port(proto, p[0]); 49198943Sluigi if (p[0] != p[1]) { 49298943Sluigi printf("-"); 49398943Sluigi print_port(proto, p[1]); 49498943Sluigi } 49598943Sluigi sep = ","; 49698943Sluigi } 49798943Sluigi} 49898943Sluigi 49998943Sluigi/* 50098943Sluigi * Like strtol, but also translates service names into port numbers 50198943Sluigi * for some protocols. 50298943Sluigi * In particular: 50398943Sluigi * proto == -1 disables the protocol check; 50498943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 50598943Sluigi * proto == <some value in /etc/protocols> matches the values there. 506101628Sluigi * Returns *end == s in case the parameter is not found. 50798943Sluigi */ 50898943Sluigistatic int 50998943Sluigistrtoport(char *s, char **end, int base, int proto) 51098943Sluigi{ 511101628Sluigi char *p, *buf; 512101628Sluigi char *s1; 51398943Sluigi int i; 51498943Sluigi 515101628Sluigi *end = s; /* default - not found */ 516117577Sluigi if (*s == '\0') 517101628Sluigi return 0; /* not found */ 518106505Smaxim 51998943Sluigi if (isdigit(*s)) 52098943Sluigi return strtol(s, end, base); 52198943Sluigi 52298943Sluigi /* 523101628Sluigi * find separator. '\\' escapes the next char. 52498943Sluigi */ 525101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 526101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 527101628Sluigi s1++; 52898943Sluigi 529101628Sluigi buf = malloc(s1 - s + 1); 530101628Sluigi if (buf == NULL) 531101628Sluigi return 0; 532101628Sluigi 533101628Sluigi /* 534101628Sluigi * copy into a buffer skipping backslashes 535101628Sluigi */ 536101628Sluigi for (p = s, i = 0; p != s1 ; p++) 537117577Sluigi if (*p != '\\') 538101628Sluigi buf[i++] = *p; 539101628Sluigi buf[i++] = '\0'; 540101628Sluigi 54198943Sluigi if (proto == IPPROTO_ETHERTYPE) { 542101628Sluigi i = match_token(ether_types, buf); 543101628Sluigi free(buf); 544101628Sluigi if (i != -1) { /* found */ 54598943Sluigi *end = s1; 54698943Sluigi return i; 54798943Sluigi } 54898943Sluigi } else { 54998943Sluigi struct protoent *pe = NULL; 55098943Sluigi struct servent *se; 55198943Sluigi 55298943Sluigi if (proto != 0) 55398943Sluigi pe = getprotobynumber(proto); 55498943Sluigi setservent(1); 555101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 556101628Sluigi free(buf); 55798943Sluigi if (se != NULL) { 55898943Sluigi *end = s1; 55998943Sluigi return ntohs(se->s_port); 56098943Sluigi } 56198943Sluigi } 562101628Sluigi return 0; /* not found */ 56398943Sluigi} 56498943Sluigi 56598943Sluigi/* 566117328Sluigi * Fill the body of the command with the list of port ranges. 56798943Sluigi */ 56898943Sluigistatic int 56998943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 57098943Sluigi{ 571117328Sluigi uint16_t a, b, *p = cmd->ports; 57298943Sluigi int i = 0; 573102087Sluigi char *s = av; 57498943Sluigi 575102087Sluigi while (*s) { 57698943Sluigi a = strtoport(av, &s, 0, proto); 57798943Sluigi if (s == av) /* no parameter */ 57898943Sluigi break; 57998943Sluigi if (*s == '-') { /* a range */ 58098943Sluigi av = s+1; 58198943Sluigi b = strtoport(av, &s, 0, proto); 58298943Sluigi if (s == av) /* no parameter */ 58398943Sluigi break; 58498943Sluigi p[0] = a; 58598943Sluigi p[1] = b; 586117328Sluigi } else if (*s == ',' || *s == '\0' ) 58798943Sluigi p[0] = p[1] = a; 588117328Sluigi else /* invalid separator */ 589101978Sluigi errx(EX_DATAERR, "invalid separator <%c> in <%s>\n", 590101978Sluigi *s, av); 591102087Sluigi i++; 592102087Sluigi p += 2; 59398943Sluigi av = s+1; 59498943Sluigi } 59598943Sluigi if (i > 0) { 59698943Sluigi if (i+1 > F_LEN_MASK) 597102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 59898943Sluigi cmd->o.len |= i+1; /* leave F_NOT and F_OR untouched */ 59998943Sluigi } 60098943Sluigi return i; 60198943Sluigi} 60298943Sluigi 60398943Sluigistatic struct _s_x icmpcodes[] = { 60498943Sluigi { "net", ICMP_UNREACH_NET }, 60598943Sluigi { "host", ICMP_UNREACH_HOST }, 60698943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 60798943Sluigi { "port", ICMP_UNREACH_PORT }, 60898943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 60998943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 61098943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 61198943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 61298943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 61398943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 61498943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 61598943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 61698943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 61798943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 61898943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 61998943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 62098943Sluigi { NULL, 0 } 62198943Sluigi}; 62298943Sluigi 62398943Sluigistatic void 62498943Sluigifill_reject_code(u_short *codep, char *str) 62598943Sluigi{ 62698943Sluigi int val; 62798943Sluigi char *s; 62898943Sluigi 62998943Sluigi val = strtoul(str, &s, 0); 63098943Sluigi if (s == str || *s != '\0' || val >= 0x100) 63198943Sluigi val = match_token(icmpcodes, str); 632102087Sluigi if (val < 0) 63398943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 63498943Sluigi *codep = val; 63598943Sluigi return; 63698943Sluigi} 63798943Sluigi 63898943Sluigistatic void 639117328Sluigiprint_reject_code(uint16_t code) 64098943Sluigi{ 641117469Sluigi char const *s = match_value(icmpcodes, code); 64298943Sluigi 64398943Sluigi if (s != NULL) 64499475Sluigi printf("unreach %s", s); 64598943Sluigi else 64699475Sluigi printf("unreach %u", code); 64798943Sluigi} 64898943Sluigi 64998943Sluigi/* 65098943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 65198943Sluigi * or -1 if the mask is not contiguous. 65298943Sluigi * XXX this needs a proper fix. 65398943Sluigi * This effectively works on masks in big-endian (network) format. 65498943Sluigi * when compiled on little endian architectures. 65598943Sluigi * 65698943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 65798943Sluigi * the first bit on the wire is bit 0 of the first byte. 65898943Sluigi * len is the max length in bits. 65998943Sluigi */ 66098943Sluigistatic int 661117577Sluigicontigmask(uint8_t *p, int len) 66298943Sluigi{ 66398943Sluigi int i, n; 664117577Sluigi 66598943Sluigi for (i=0; i<len ; i++) 66698943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 66798943Sluigi break; 66898943Sluigi for (n=i+1; n < len; n++) 66998943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 67098943Sluigi return -1; /* mask not contiguous */ 67198943Sluigi return i; 67298943Sluigi} 67398943Sluigi 67498943Sluigi/* 67598943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 67698943Sluigi * There is a specialized check for f_tcpflags. 67798943Sluigi */ 67898943Sluigistatic void 679117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 68098943Sluigi{ 681117469Sluigi char const *comma = ""; 68298943Sluigi int i; 683117577Sluigi uint8_t set = cmd->arg1 & 0xff; 684117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 68598943Sluigi 68698943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 68798943Sluigi printf(" setup"); 68898943Sluigi return; 68998943Sluigi } 69098943Sluigi 69198943Sluigi printf(" %s ", name); 69298943Sluigi for (i=0; list[i].x != 0; i++) { 69398943Sluigi if (set & list[i].x) { 69498943Sluigi set &= ~list[i].x; 69598943Sluigi printf("%s%s", comma, list[i].s); 69698943Sluigi comma = ","; 69798943Sluigi } 69898943Sluigi if (clear & list[i].x) { 69998943Sluigi clear &= ~list[i].x; 70098943Sluigi printf("%s!%s", comma, list[i].s); 70198943Sluigi comma = ","; 70298943Sluigi } 70398943Sluigi } 70498943Sluigi} 70598943Sluigi 70698943Sluigi/* 70798943Sluigi * Print the ip address contained in a command. 70898943Sluigi */ 70998943Sluigistatic void 710117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 71198943Sluigi{ 71298943Sluigi struct hostent *he = NULL; 713117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 714117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 71598943Sluigi 716102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 71798943Sluigi 71898943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 71998943Sluigi printf("me"); 72098943Sluigi return; 72198943Sluigi } 722130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 723130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 724130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 725130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 726130281Sru printf(",%u", *a); 727130281Sru printf(")"); 728130281Sru return; 729130281Sru } 73098943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 731117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 732116716Sluigi int i, j; 73398943Sluigi char comma = '{'; 73498943Sluigi 73598943Sluigi x = cmd->o.arg1 - 1; 73698943Sluigi x = htonl( ~x ); 73798943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 73898943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 739117577Sluigi contigmask((uint8_t *)&x, 32)); 74098943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 74198943Sluigi x &= 0xff; /* base */ 742116716Sluigi /* 743116716Sluigi * Print bits and ranges. 744116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 745116716Sluigi * If we have 3+ consecutive bits set, then print them as a 746116716Sluigi * range, otherwise only print the initial bit and rescan. 747116716Sluigi */ 74898943Sluigi for (i=0; i < cmd->o.arg1; i++) 749117328Sluigi if (map[i/32] & (1<<(i & 31))) { 750116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 751117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 752116716Sluigi break; 75398943Sluigi printf("%c%d", comma, i+x); 754116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 755116716Sluigi printf("-%d", j-1+x); 756116716Sluigi i = j-1; 757116716Sluigi } 75898943Sluigi comma = ','; 75998943Sluigi } 76098943Sluigi printf("}"); 76198943Sluigi return; 76298943Sluigi } 763117328Sluigi /* 764117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 765117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 766117328Sluigi * use that to count the number of entries. 767117328Sluigi */ 768117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 769117328Sluigi int mb = /* mask length */ 770117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 771117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 77298943Sluigi if (mb == 32 && do_resolv) 773117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 77498943Sluigi if (he != NULL) /* resolved to name */ 77598943Sluigi printf("%s", he->h_name); 77698943Sluigi else if (mb == 0) /* any */ 77798943Sluigi printf("any"); 77898943Sluigi else { /* numeric IP followed by some kind of mask */ 779117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 78098943Sluigi if (mb < 0) 781117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 78298943Sluigi else if (mb < 32) 78398943Sluigi printf("/%d", mb); 78498943Sluigi } 785117328Sluigi if (len > 1) 786117328Sluigi printf(","); 787117328Sluigi } 78898943Sluigi} 78998943Sluigi 79098943Sluigi/* 79198943Sluigi * prints a MAC address/mask pair 79298943Sluigi */ 79398943Sluigistatic void 794117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 79598943Sluigi{ 79698943Sluigi int l = contigmask(mask, 48); 79798943Sluigi 79898943Sluigi if (l == 0) 79998943Sluigi printf(" any"); 80098943Sluigi else { 80198943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 80298943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 80398943Sluigi if (l == -1) 80498943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 80598943Sluigi mask[0], mask[1], mask[2], 80698943Sluigi mask[3], mask[4], mask[5]); 80798943Sluigi else if (l < 48) 80898943Sluigi printf("/%d", l); 80998943Sluigi } 81098943Sluigi} 81198943Sluigi 81299475Sluigistatic void 81399475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 81499475Sluigi{ 815117328Sluigi uint8_t type; 81698943Sluigi 81799475Sluigi cmd->d[0] = 0; 81899475Sluigi while (*av) { 81999475Sluigi if (*av == ',') 82099475Sluigi av++; 82199475Sluigi 82299475Sluigi type = strtoul(av, &av, 0); 82399475Sluigi 82499475Sluigi if (*av != ',' && *av != '\0') 82599475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 82699475Sluigi 82799475Sluigi if (type > 31) 82899475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 82999475Sluigi 83099475Sluigi cmd->d[0] |= 1 << type; 83199475Sluigi } 83299475Sluigi cmd->o.opcode = O_ICMPTYPE; 83399475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 83499475Sluigi} 83599475Sluigi 83699475Sluigistatic void 83799475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 83899475Sluigi{ 83999475Sluigi int i; 84099475Sluigi char sep= ' '; 84199475Sluigi 84299475Sluigi printf(" icmptypes"); 84399475Sluigi for (i = 0; i < 32; i++) { 84499475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 84599475Sluigi continue; 84699475Sluigi printf("%c%d", sep, i); 84799475Sluigi sep = ','; 84899475Sluigi } 84999475Sluigi} 85099475Sluigi 85198943Sluigi/* 85298943Sluigi * show_ipfw() prints the body of an ipfw rule. 85398943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 85498943Sluigi * a helper function to produce these entries if not provided explicitly. 855102087Sluigi * The first argument is the list of fields we have, the second is 856102087Sluigi * the list of fields we want to be printed. 857101978Sluigi * 858102087Sluigi * Special cases if we have provided a MAC header: 859102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 860102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 861102087Sluigi * 862102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 86398943Sluigi */ 864101978Sluigi#define HAVE_PROTO 0x0001 865101978Sluigi#define HAVE_SRCIP 0x0002 866101978Sluigi#define HAVE_DSTIP 0x0004 867101978Sluigi#define HAVE_MAC 0x0008 868101978Sluigi#define HAVE_MACTYPE 0x0010 869102087Sluigi#define HAVE_OPTIONS 0x8000 87098943Sluigi 871101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 87298943Sluigistatic void 873102087Sluigishow_prerequisites(int *flags, int want, int cmd) 87498943Sluigi{ 875123495Sluigi if (comment_only) 876123495Sluigi return; 877102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 878102087Sluigi *flags |= HAVE_OPTIONS; 879102087Sluigi 880102087Sluigi if ( (*flags & (HAVE_MAC|HAVE_MACTYPE|HAVE_OPTIONS)) == HAVE_MAC && 881102087Sluigi cmd != O_MAC_TYPE) { 882102087Sluigi /* 883102087Sluigi * mac-type was optimized out by the compiler, 884102087Sluigi * restore it 885102087Sluigi */ 886102087Sluigi printf(" any"); 887102087Sluigi *flags |= HAVE_MACTYPE | HAVE_OPTIONS; 888102087Sluigi return; 889101978Sluigi } 890102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 891102087Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) 892102087Sluigi printf(" ip"); 893102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 894102087Sluigi printf(" from any"); 895102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 896102087Sluigi printf(" to any"); 897102087Sluigi } 89898943Sluigi *flags |= want; 89998943Sluigi} 90098943Sluigi 90198943Sluigistatic void 902112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 90398943Sluigi{ 904107291Skeramida static int twidth = 0; 90598943Sluigi int l; 90698943Sluigi ipfw_insn *cmd; 907117626Sluigi char *comment = NULL; /* ptr to comment if we have one */ 90898943Sluigi int proto = 0; /* default */ 90998943Sluigi int flags = 0; /* prerequisites */ 91098943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 91198943Sluigi int or_block = 0; /* we are in an or block */ 912117328Sluigi uint32_t set_disable; 91398943Sluigi 914115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 915101628Sluigi 916101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 917101628Sluigi if (!show_sets) 918101628Sluigi return; 919101628Sluigi else 920101628Sluigi printf("# DISABLED "); 921101628Sluigi } 92298943Sluigi printf("%05u ", rule->rulenum); 92398943Sluigi 924117469Sluigi if (pcwidth>0 || bcwidth>0) 925115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 926115793Sticso bcwidth, align_uint64(&rule->bcnt)); 92798943Sluigi 928117472Sluigi if (do_time == 2) 929117472Sluigi printf("%10u ", rule->timestamp); 930117472Sluigi else if (do_time == 1) { 931107291Skeramida char timestr[30]; 932107291Skeramida time_t t = (time_t)0; 933107291Skeramida 934107291Skeramida if (twidth == 0) { 935107291Skeramida strcpy(timestr, ctime(&t)); 936107291Skeramida *strchr(timestr, '\n') = '\0'; 937107291Skeramida twidth = strlen(timestr); 938107291Skeramida } 93998943Sluigi if (rule->timestamp) { 940117469Sluigi#if _FreeBSD_version < 500000 /* XXX check */ 941117469Sluigi#define _long_to_time(x) (time_t)(x) 942117469Sluigi#endif 943107291Skeramida t = _long_to_time(rule->timestamp); 94498943Sluigi 94598943Sluigi strcpy(timestr, ctime(&t)); 94698943Sluigi *strchr(timestr, '\n') = '\0'; 94798943Sluigi printf("%s ", timestr); 94898943Sluigi } else { 949107291Skeramida printf("%*s", twidth, " "); 95098943Sluigi } 95198943Sluigi } 95298943Sluigi 953101628Sluigi if (show_sets) 954101628Sluigi printf("set %d ", rule->set); 955101628Sluigi 95698943Sluigi /* 957107289Sluigi * print the optional "match probability" 958107289Sluigi */ 959107289Sluigi if (rule->cmd_len > 0) { 960107289Sluigi cmd = rule->cmd ; 961107289Sluigi if (cmd->opcode == O_PROB) { 962107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 963107289Sluigi double d = 1.0 * p->d[0]; 964107289Sluigi 965107289Sluigi d = (d / 0x7fffffff); 966107289Sluigi printf("prob %f ", d); 967107289Sluigi } 968107289Sluigi } 969107289Sluigi 970107289Sluigi /* 97198943Sluigi * first print actions 97298943Sluigi */ 97398943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 97498943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 97598943Sluigi switch(cmd->opcode) { 97698943Sluigi case O_CHECK_STATE: 97798943Sluigi printf("check-state"); 978102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 97998943Sluigi break; 98098943Sluigi 98198943Sluigi case O_ACCEPT: 98298943Sluigi printf("allow"); 98398943Sluigi break; 98498943Sluigi 98598943Sluigi case O_COUNT: 98698943Sluigi printf("count"); 98798943Sluigi break; 98898943Sluigi 98998943Sluigi case O_DENY: 99098943Sluigi printf("deny"); 99198943Sluigi break; 99298943Sluigi 99399475Sluigi case O_REJECT: 99499475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 99599475Sluigi printf("reset"); 99699475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 99799475Sluigi printf("reject"); 99899475Sluigi else 99999475Sluigi print_reject_code(cmd->arg1); 100099475Sluigi break; 100199475Sluigi 100298943Sluigi case O_SKIPTO: 100398943Sluigi printf("skipto %u", cmd->arg1); 100498943Sluigi break; 100598943Sluigi 100698943Sluigi case O_PIPE: 100798943Sluigi printf("pipe %u", cmd->arg1); 100898943Sluigi break; 100998943Sluigi 101098943Sluigi case O_QUEUE: 101198943Sluigi printf("queue %u", cmd->arg1); 101298943Sluigi break; 101398943Sluigi 101498943Sluigi case O_DIVERT: 101598943Sluigi printf("divert %u", cmd->arg1); 101698943Sluigi break; 101798943Sluigi 101898943Sluigi case O_TEE: 101998943Sluigi printf("tee %u", cmd->arg1); 102098943Sluigi break; 102198943Sluigi 102298943Sluigi case O_FORWARD_IP: 102398943Sluigi { 102498943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 102598943Sluigi 102698943Sluigi printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 102798943Sluigi if (s->sa.sin_port) 1028103241Sluigi printf(",%d", s->sa.sin_port); 102998943Sluigi } 103098943Sluigi break; 103198943Sluigi 103298943Sluigi case O_LOG: /* O_LOG is printed last */ 103398943Sluigi logptr = (ipfw_insn_log *)cmd; 103498943Sluigi break; 103598943Sluigi 103698943Sluigi default: 103798943Sluigi printf("** unrecognized action %d len %d", 103898943Sluigi cmd->opcode, cmd->len); 103998943Sluigi } 104098943Sluigi } 104198943Sluigi if (logptr) { 104298943Sluigi if (logptr->max_log > 0) 104399909Sluigi printf(" log logamount %d", logptr->max_log); 104498943Sluigi else 104599909Sluigi printf(" log"); 104698943Sluigi } 1047102087Sluigi 104898943Sluigi /* 1049102087Sluigi * then print the body. 105098943Sluigi */ 1051102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1052102098Sluigi if (!do_compact) 1053102098Sluigi printf(" ip from any to any"); 1054102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1055102087Sluigi } 1056102087Sluigi 1057123495Sluigi if (comment_only) 1058123495Sluigi comment = "..."; 1059123495Sluigi 106098943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 106198943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 106299475Sluigi /* useful alias */ 106399475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 106498943Sluigi 1065123495Sluigi if (comment_only) { 1066123495Sluigi if (cmd->opcode != O_NOP) 1067123495Sluigi continue; 1068123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1069123495Sluigi return; 1070123495Sluigi } 1071123495Sluigi 1072102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1073102087Sluigi 107498943Sluigi switch(cmd->opcode) { 1075117577Sluigi case O_PROB: 1076107289Sluigi break; /* done already */ 1077107289Sluigi 107898943Sluigi case O_PROBE_STATE: 107998943Sluigi break; /* no need to print anything here */ 108098943Sluigi 108198943Sluigi case O_MACADDR2: { 108298943Sluigi ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1083102087Sluigi 1084102087Sluigi if ((cmd->len & F_OR) && !or_block) 1085102087Sluigi printf(" {"); 108698943Sluigi if (cmd->len & F_NOT) 108798943Sluigi printf(" not"); 1088102087Sluigi printf(" MAC"); 1089102087Sluigi flags |= HAVE_MAC; 1090117577Sluigi print_mac(m->addr, m->mask); 1091117577Sluigi print_mac(m->addr + 6, m->mask + 6); 109298943Sluigi } 109398943Sluigi break; 109498943Sluigi 109598943Sluigi case O_MAC_TYPE: 1096102087Sluigi if ((cmd->len & F_OR) && !or_block) 1097102087Sluigi printf(" {"); 1098102087Sluigi print_newports((ipfw_insn_u16 *)cmd, IPPROTO_ETHERTYPE, 1099102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 1100102087Sluigi flags |= HAVE_MAC | HAVE_MACTYPE | HAVE_OPTIONS; 110198943Sluigi break; 110298943Sluigi 110398943Sluigi case O_IP_SRC: 1104130281Sru case O_IP_SRC_LOOKUP: 110598943Sluigi case O_IP_SRC_MASK: 110698943Sluigi case O_IP_SRC_ME: 110798943Sluigi case O_IP_SRC_SET: 1108102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 110998943Sluigi if (!(flags & HAVE_SRCIP)) 111098943Sluigi printf(" from"); 111198943Sluigi if ((cmd->len & F_OR) && !or_block) 111298943Sluigi printf(" {"); 1113102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1114102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 111598943Sluigi flags |= HAVE_SRCIP; 111698943Sluigi break; 111798943Sluigi 111898943Sluigi case O_IP_DST: 1119130281Sru case O_IP_DST_LOOKUP: 112098943Sluigi case O_IP_DST_MASK: 112198943Sluigi case O_IP_DST_ME: 112298943Sluigi case O_IP_DST_SET: 1123102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 112498943Sluigi if (!(flags & HAVE_DSTIP)) 112598943Sluigi printf(" to"); 112698943Sluigi if ((cmd->len & F_OR) && !or_block) 112798943Sluigi printf(" {"); 1128102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1129102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 113098943Sluigi flags |= HAVE_DSTIP; 113198943Sluigi break; 113298943Sluigi 113398943Sluigi case O_IP_DSTPORT: 1134102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 113598943Sluigi case O_IP_SRCPORT: 1136102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1137101641Sluigi if ((cmd->len & F_OR) && !or_block) 1138101641Sluigi printf(" {"); 1139102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1140102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 114198943Sluigi break; 114298943Sluigi 114398943Sluigi case O_PROTO: { 114498943Sluigi struct protoent *pe; 114598943Sluigi 114698943Sluigi if ((cmd->len & F_OR) && !or_block) 114798943Sluigi printf(" {"); 114898943Sluigi if (cmd->len & F_NOT) 114998943Sluigi printf(" not"); 115098943Sluigi proto = cmd->arg1; 115198943Sluigi pe = getprotobynumber(cmd->arg1); 1152102087Sluigi if (flags & HAVE_OPTIONS) 1153102087Sluigi printf(" proto"); 115498943Sluigi if (pe) 115598943Sluigi printf(" %s", pe->p_name); 115698943Sluigi else 115798943Sluigi printf(" %u", cmd->arg1); 115898943Sluigi } 115998943Sluigi flags |= HAVE_PROTO; 116098943Sluigi break; 1161106505Smaxim 116298943Sluigi default: /*options ... */ 1163102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 116498943Sluigi if ((cmd->len & F_OR) && !or_block) 116598943Sluigi printf(" {"); 116698943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 116798943Sluigi printf(" not"); 116898943Sluigi switch(cmd->opcode) { 116998943Sluigi case O_FRAG: 117098943Sluigi printf(" frag"); 117198943Sluigi break; 117298943Sluigi 117398943Sluigi case O_IN: 117498943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 117598943Sluigi break; 117698943Sluigi 117798943Sluigi case O_LAYER2: 117898943Sluigi printf(" layer2"); 117998943Sluigi break; 118098943Sluigi case O_XMIT: 118198943Sluigi case O_RECV: 118298943Sluigi case O_VIA: { 1183117469Sluigi char const *s; 118498943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 118598943Sluigi 118698943Sluigi if (cmd->opcode == O_XMIT) 118798943Sluigi s = "xmit"; 118898943Sluigi else if (cmd->opcode == O_RECV) 118998943Sluigi s = "recv"; 1190117469Sluigi else /* if (cmd->opcode == O_VIA) */ 119198943Sluigi s = "via"; 119298943Sluigi if (cmdif->name[0] == '\0') 119399475Sluigi printf(" %s %s", s, 119499475Sluigi inet_ntoa(cmdif->p.ip)); 1195121816Sbrooks printf(" %s %s", s, cmdif->name); 119698943Sluigi } 119798943Sluigi break; 119898943Sluigi 119998943Sluigi case O_IPID: 1200116690Sluigi if (F_LEN(cmd) == 1) 1201116690Sluigi printf(" ipid %u", cmd->arg1 ); 1202116690Sluigi else 1203116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1204116690Sluigi O_IPID); 120598943Sluigi break; 120698943Sluigi 120798943Sluigi case O_IPTTL: 1208116690Sluigi if (F_LEN(cmd) == 1) 1209116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1210116690Sluigi else 1211116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1212116690Sluigi O_IPTTL); 121398943Sluigi break; 121498943Sluigi 121598943Sluigi case O_IPVER: 121698943Sluigi printf(" ipver %u", cmd->arg1 ); 121798943Sluigi break; 121898943Sluigi 121999475Sluigi case O_IPPRECEDENCE: 122099475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 122199475Sluigi break; 122299475Sluigi 122398943Sluigi case O_IPLEN: 1224116690Sluigi if (F_LEN(cmd) == 1) 1225116690Sluigi printf(" iplen %u", cmd->arg1 ); 1226116690Sluigi else 1227116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1228116690Sluigi O_IPLEN); 122998943Sluigi break; 123098943Sluigi 1231101116Sluigi case O_IPOPT: 123298943Sluigi print_flags("ipoptions", cmd, f_ipopts); 123398943Sluigi break; 123498943Sluigi 123599475Sluigi case O_IPTOS: 123699475Sluigi print_flags("iptos", cmd, f_iptos); 123799475Sluigi break; 123899475Sluigi 123999475Sluigi case O_ICMPTYPE: 124099475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 124199475Sluigi break; 124299475Sluigi 124398943Sluigi case O_ESTAB: 124498943Sluigi printf(" established"); 124598943Sluigi break; 124698943Sluigi 124798943Sluigi case O_TCPFLAGS: 124898943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 124998943Sluigi break; 125098943Sluigi 125198943Sluigi case O_TCPOPTS: 125298943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 125398943Sluigi break; 125498943Sluigi 125598943Sluigi case O_TCPWIN: 125698943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 125798943Sluigi break; 125898943Sluigi 125998943Sluigi case O_TCPACK: 126098943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 126198943Sluigi break; 126298943Sluigi 126398943Sluigi case O_TCPSEQ: 126498943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 126598943Sluigi break; 126698943Sluigi 126798943Sluigi case O_UID: 126898943Sluigi { 126998943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 127098943Sluigi 127198943Sluigi if (pwd) 127298943Sluigi printf(" uid %s", pwd->pw_name); 127398943Sluigi else 127498943Sluigi printf(" uid %u", cmd32->d[0]); 127598943Sluigi } 127698943Sluigi break; 127798943Sluigi 127898943Sluigi case O_GID: 127998943Sluigi { 128098943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 128198943Sluigi 128298943Sluigi if (grp) 128398943Sluigi printf(" gid %s", grp->gr_name); 128498943Sluigi else 128598943Sluigi printf(" gid %u", cmd32->d[0]); 128698943Sluigi } 128798943Sluigi break; 128898943Sluigi 1289133600Scsjp case O_JAIL: 1290133600Scsjp printf(" jail %d", cmd32->d[0]); 1291133600Scsjp break; 1292133600Scsjp 1293112250Scjc case O_VERREVPATH: 1294112250Scjc printf(" verrevpath"); 1295112250Scjc break; 1296116919Sluigi 1297128575Sandre case O_VERSRCREACH: 1298128575Sandre printf(" versrcreach"); 1299128575Sandre break; 1300128575Sandre 1301133387Sandre case O_ANTISPOOF: 1302133387Sandre printf(" antispoof"); 1303133387Sandre break; 1304133387Sandre 1305117241Sluigi case O_IPSEC: 1306117241Sluigi printf(" ipsec"); 1307117241Sluigi break; 1308117241Sluigi 1309117469Sluigi case O_NOP: 1310117626Sluigi comment = (char *)(cmd + 1); 1311117469Sluigi break; 1312117469Sluigi 131398943Sluigi case O_KEEP_STATE: 131498943Sluigi printf(" keep-state"); 131598943Sluigi break; 131698943Sluigi 131798943Sluigi case O_LIMIT: 131898943Sluigi { 131998943Sluigi struct _s_x *p = limit_masks; 132098943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1321117328Sluigi uint8_t x = c->limit_mask; 1322117469Sluigi char const *comma = " "; 132398943Sluigi 132498943Sluigi printf(" limit"); 1325117577Sluigi for (; p->x != 0 ; p++) 132699909Sluigi if ((x & p->x) == p->x) { 132798943Sluigi x &= ~p->x; 132898943Sluigi printf("%s%s", comma, p->s); 132998943Sluigi comma = ","; 133098943Sluigi } 133198943Sluigi printf(" %d", c->conn_limit); 133298943Sluigi } 133398943Sluigi break; 133498943Sluigi 133598943Sluigi default: 133698943Sluigi printf(" [opcode %d len %d]", 133798943Sluigi cmd->opcode, cmd->len); 133898943Sluigi } 133998943Sluigi } 134098943Sluigi if (cmd->len & F_OR) { 134198943Sluigi printf(" or"); 134298943Sluigi or_block = 1; 134398943Sluigi } else if (or_block) { 134498943Sluigi printf(" }"); 134598943Sluigi or_block = 0; 134698943Sluigi } 134798943Sluigi } 1348102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 1349117626Sluigi if (comment) 1350117626Sluigi printf(" // %s", comment); 135198943Sluigi printf("\n"); 135298943Sluigi} 135398943Sluigi 135498943Sluigistatic void 1355112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 135698943Sluigi{ 135798943Sluigi struct protoent *pe; 135898943Sluigi struct in_addr a; 1359115793Sticso uint16_t rulenum; 136098943Sluigi 136198943Sluigi if (!do_expired) { 136298943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 136398943Sluigi return; 136498943Sluigi } 1365115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1366117328Sluigi printf("%05d", rulenum); 1367117469Sluigi if (pcwidth>0 || bcwidth>0) 1368117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 1369117328Sluigi align_uint64(&d->pcnt), bcwidth, 1370117328Sluigi align_uint64(&d->bcnt), d->expire); 137198943Sluigi switch (d->dyn_type) { 137298943Sluigi case O_LIMIT_PARENT: 137398943Sluigi printf(" PARENT %d", d->count); 137498943Sluigi break; 137598943Sluigi case O_LIMIT: 137698943Sluigi printf(" LIMIT"); 137798943Sluigi break; 137898943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 1379106505Smaxim printf(" STATE"); 138098943Sluigi break; 138198943Sluigi } 138298943Sluigi 138398943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 138498943Sluigi printf(" %s", pe->p_name); 138598943Sluigi else 138698943Sluigi printf(" proto %u", d->id.proto); 138798943Sluigi 138898943Sluigi a.s_addr = htonl(d->id.src_ip); 138998943Sluigi printf(" %s %d", inet_ntoa(a), d->id.src_port); 139098943Sluigi 139198943Sluigi a.s_addr = htonl(d->id.dst_ip); 139298943Sluigi printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 139398943Sluigi printf("\n"); 139498943Sluigi} 139598943Sluigi 1396117469Sluigistatic int 139798943Sluigisort_q(const void *pa, const void *pb) 139898943Sluigi{ 139998943Sluigi int rev = (do_sort < 0); 140098943Sluigi int field = rev ? -do_sort : do_sort; 140198943Sluigi long long res = 0; 140298943Sluigi const struct dn_flow_queue *a = pa; 140398943Sluigi const struct dn_flow_queue *b = pb; 140498943Sluigi 140598943Sluigi switch (field) { 140698943Sluigi case 1: /* pkts */ 140798943Sluigi res = a->len - b->len; 140898943Sluigi break; 140998943Sluigi case 2: /* bytes */ 141098943Sluigi res = a->len_bytes - b->len_bytes; 141198943Sluigi break; 141298943Sluigi 141398943Sluigi case 3: /* tot pkts */ 141498943Sluigi res = a->tot_pkts - b->tot_pkts; 141598943Sluigi break; 141698943Sluigi 141798943Sluigi case 4: /* tot bytes */ 141898943Sluigi res = a->tot_bytes - b->tot_bytes; 141998943Sluigi break; 142098943Sluigi } 142198943Sluigi if (res < 0) 142298943Sluigi res = -1; 142398943Sluigi if (res > 0) 142498943Sluigi res = 1; 142598943Sluigi return (int)(rev ? res : -res); 142698943Sluigi} 142798943Sluigi 142898943Sluigistatic void 142998943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 143098943Sluigi{ 143198943Sluigi int l; 143298943Sluigi 143398943Sluigi printf(" mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 143498943Sluigi fs->flow_mask.proto, 143598943Sluigi fs->flow_mask.src_ip, fs->flow_mask.src_port, 143698943Sluigi fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 143798943Sluigi if (fs->rq_elements == 0) 143898943Sluigi return; 143998943Sluigi 144098943Sluigi printf("BKT Prot ___Source IP/port____ " 144198943Sluigi "____Dest. IP/port____ Tot_pkt/bytes Pkt/Byte Drp\n"); 144298943Sluigi if (do_sort != 0) 144398943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 144498943Sluigi for (l = 0; l < fs->rq_elements; l++) { 144598943Sluigi struct in_addr ina; 144698943Sluigi struct protoent *pe; 144798943Sluigi 144898943Sluigi ina.s_addr = htonl(q[l].id.src_ip); 144998943Sluigi printf("%3d ", q[l].hash_slot); 145098943Sluigi pe = getprotobynumber(q[l].id.proto); 145198943Sluigi if (pe) 145298943Sluigi printf("%-4s ", pe->p_name); 145398943Sluigi else 145498943Sluigi printf("%4u ", q[l].id.proto); 145598943Sluigi printf("%15s/%-5d ", 145698943Sluigi inet_ntoa(ina), q[l].id.src_port); 145798943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 145898943Sluigi printf("%15s/%-5d ", 145998943Sluigi inet_ntoa(ina), q[l].id.dst_port); 146098943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 146198943Sluigi q[l].tot_pkts, q[l].tot_bytes, 146298943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 146398943Sluigi if (verbose) 146498943Sluigi printf(" S %20qd F %20qd\n", 146598943Sluigi q[l].S, q[l].F); 146698943Sluigi } 146798943Sluigi} 146898943Sluigi 146998943Sluigistatic void 147098943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 147198943Sluigi{ 147298943Sluigi int l; 147398943Sluigi char qs[30]; 147498943Sluigi char plr[30]; 147598943Sluigi char red[90]; /* Display RED parameters */ 147698943Sluigi 147798943Sluigi l = fs->qsize; 147898943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 147998943Sluigi if (l >= 8192) 148098943Sluigi sprintf(qs, "%d KB", l / 1024); 148198943Sluigi else 148298943Sluigi sprintf(qs, "%d B", l); 148398943Sluigi } else 148498943Sluigi sprintf(qs, "%3d sl.", l); 148598943Sluigi if (fs->plr) 148698943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 148798943Sluigi else 148898943Sluigi plr[0] = '\0'; 148998943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 149098943Sluigi sprintf(red, 149198943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 149298943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 149398943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 149498943Sluigi SCALE_VAL(fs->min_th), 149598943Sluigi SCALE_VAL(fs->max_th), 149698943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 149798943Sluigi else 149898943Sluigi sprintf(red, "droptail"); 149998943Sluigi 150098943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 150198943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 150298943Sluigi} 150398943Sluigi 150498943Sluigistatic void 1505117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 150698943Sluigi{ 1507117469Sluigi int rulenum; 150898943Sluigi void *next = data; 150998943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 151098943Sluigi struct dn_flow_set *fs; 151198943Sluigi struct dn_flow_queue *q; 151298943Sluigi int l; 151398943Sluigi 151498943Sluigi if (ac > 0) 151598943Sluigi rulenum = strtoul(*av++, NULL, 10); 151698943Sluigi else 151798943Sluigi rulenum = 0; 151898943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 151998943Sluigi double b = p->bandwidth; 152098943Sluigi char buf[30]; 152198943Sluigi char prefix[80]; 152298943Sluigi 152398943Sluigi if (p->next != (struct dn_pipe *)DN_IS_PIPE) 152498943Sluigi break; /* done with pipes, now queues */ 152598943Sluigi 152698943Sluigi /* 152798943Sluigi * compute length, as pipe have variable size 152898943Sluigi */ 152998943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 1530117469Sluigi next = (char *)p + l; 153198943Sluigi nbytes -= l; 153298943Sluigi 153398943Sluigi if (rulenum != 0 && rulenum != p->pipe_nr) 153498943Sluigi continue; 153598943Sluigi 153698943Sluigi /* 153798943Sluigi * Print rate (or clocking interface) 153898943Sluigi */ 153998943Sluigi if (p->if_name[0] != '\0') 154098943Sluigi sprintf(buf, "%s", p->if_name); 154198943Sluigi else if (b == 0) 154298943Sluigi sprintf(buf, "unlimited"); 154398943Sluigi else if (b >= 1000000) 154498943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 154598943Sluigi else if (b >= 1000) 154698943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 154798943Sluigi else 154898943Sluigi sprintf(buf, "%7.3f bit/s ", b); 154998943Sluigi 155098943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 155198943Sluigi p->pipe_nr, buf, p->delay); 155298943Sluigi print_flowset_parms(&(p->fs), prefix); 155398943Sluigi if (verbose) 155498943Sluigi printf(" V %20qd\n", p->V >> MY_M); 1555106505Smaxim 155698943Sluigi q = (struct dn_flow_queue *)(p+1); 155798943Sluigi list_queues(&(p->fs), q); 155898943Sluigi } 155998943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 156098943Sluigi char prefix[80]; 156198943Sluigi 156298943Sluigi if (fs->next != (struct dn_flow_set *)DN_IS_QUEUE) 156398943Sluigi break; 156498943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 1565117469Sluigi next = (char *)fs + l; 156698943Sluigi nbytes -= l; 156798943Sluigi q = (struct dn_flow_queue *)(fs+1); 156898943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 156998943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 157098943Sluigi print_flowset_parms(fs, prefix); 157198943Sluigi list_queues(fs, q); 157298943Sluigi } 157398943Sluigi} 157498943Sluigi 1575101978Sluigi/* 1576101978Sluigi * This one handles all set-related commands 1577101978Sluigi * ipfw set { show | enable | disable } 1578101978Sluigi * ipfw set swap X Y 1579101978Sluigi * ipfw set move X to Y 1580101978Sluigi * ipfw set move rule X to Y 1581101978Sluigi */ 158298943Sluigistatic void 1583101978Sluigisets_handler(int ac, char *av[]) 1584101978Sluigi{ 1585117328Sluigi uint32_t set_disable, masks[2]; 1586101978Sluigi int i, nbytes; 1587117328Sluigi uint16_t rulenum; 1588117328Sluigi uint8_t cmd, new_set; 1589101978Sluigi 1590101978Sluigi ac--; 1591101978Sluigi av++; 1592101978Sluigi 1593101978Sluigi if (!ac) 1594101978Sluigi errx(EX_USAGE, "set needs command"); 1595101978Sluigi if (!strncmp(*av, "show", strlen(*av)) ) { 1596101978Sluigi void *data; 1597117469Sluigi char const *msg; 1598101978Sluigi 1599101978Sluigi nbytes = sizeof(struct ip_fw); 1600117328Sluigi if ((data = calloc(1, nbytes)) == NULL) 1601117328Sluigi err(EX_OSERR, "calloc"); 1602119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 1603101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 1604115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 1605115793Sticso &set_disable, sizeof(set_disable)); 1606101978Sluigi 1607117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 1608117577Sluigi if ((set_disable & (1<<i))) { 1609101978Sluigi printf("%s %d", msg, i); 1610101978Sluigi msg = ""; 1611101978Sluigi } 1612101978Sluigi msg = (set_disable) ? " enable" : "enable"; 1613117655Sluigi for (i = 0; i < RESVD_SET; i++) 1614117577Sluigi if (!(set_disable & (1<<i))) { 1615101978Sluigi printf("%s %d", msg, i); 1616101978Sluigi msg = ""; 1617101978Sluigi } 1618101978Sluigi printf("\n"); 1619101978Sluigi } else if (!strncmp(*av, "swap", strlen(*av))) { 1620101978Sluigi ac--; av++; 1621101978Sluigi if (ac != 2) 1622101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 1623101978Sluigi rulenum = atoi(av[0]); 1624101978Sluigi new_set = atoi(av[1]); 1625117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 1626101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 1627117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 1628101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 1629101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 1630117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 1631101978Sluigi } else if (!strncmp(*av, "move", strlen(*av))) { 1632101978Sluigi ac--; av++; 1633101978Sluigi if (ac && !strncmp(*av, "rule", strlen(*av))) { 1634101978Sluigi cmd = 2; 1635101978Sluigi ac--; av++; 1636101978Sluigi } else 1637101978Sluigi cmd = 3; 1638101978Sluigi if (ac != 3 || strncmp(av[1], "to", strlen(*av))) 1639101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 1640101978Sluigi rulenum = atoi(av[0]); 1641101978Sluigi new_set = atoi(av[2]); 1642117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 1643101978Sluigi (cmd == 2 && rulenum == 65535) ) 1644101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 1645117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 1646101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 1647101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 1648117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 1649101978Sluigi } else if (!strncmp(*av, "disable", strlen(*av)) || 1650101978Sluigi !strncmp(*av, "enable", strlen(*av)) ) { 1651101978Sluigi int which = !strncmp(*av, "enable", strlen(*av)) ? 1 : 0; 1652101978Sluigi 1653101978Sluigi ac--; av++; 1654101978Sluigi masks[0] = masks[1] = 0; 1655101978Sluigi 1656101978Sluigi while (ac) { 1657101978Sluigi if (isdigit(**av)) { 1658101978Sluigi i = atoi(*av); 1659117655Sluigi if (i < 0 || i > RESVD_SET) 1660101978Sluigi errx(EX_DATAERR, 1661101978Sluigi "invalid set number %d\n", i); 1662101978Sluigi masks[which] |= (1<<i); 1663101978Sluigi } else if (!strncmp(*av, "disable", strlen(*av))) 1664101978Sluigi which = 0; 1665101978Sluigi else if (!strncmp(*av, "enable", strlen(*av))) 1666101978Sluigi which = 1; 1667101978Sluigi else 1668101978Sluigi errx(EX_DATAERR, 1669101978Sluigi "invalid set command %s\n", *av); 1670101978Sluigi av++; ac--; 1671101978Sluigi } 1672101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 1673101978Sluigi errx(EX_DATAERR, 1674101978Sluigi "cannot enable and disable the same set\n"); 1675101978Sluigi 1676117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 1677101978Sluigi if (i) 1678101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 1679101978Sluigi } else 1680101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 1681101978Sluigi} 1682101978Sluigi 1683101978Sluigistatic void 1684109126Sdillonsysctl_handler(int ac, char *av[], int which) 1685109126Sdillon{ 1686109126Sdillon ac--; 1687109126Sdillon av++; 1688109126Sdillon 1689119668Smaxim if (ac == 0) { 1690109126Sdillon warnx("missing keyword to enable/disable\n"); 1691109126Sdillon } else if (strncmp(*av, "firewall", strlen(*av)) == 0) { 1692116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 1693116770Sluigi &which, sizeof(which)); 1694109126Sdillon } else if (strncmp(*av, "one_pass", strlen(*av)) == 0) { 1695116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 1696116770Sluigi &which, sizeof(which)); 1697109126Sdillon } else if (strncmp(*av, "debug", strlen(*av)) == 0) { 1698116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 1699116770Sluigi &which, sizeof(which)); 1700109126Sdillon } else if (strncmp(*av, "verbose", strlen(*av)) == 0) { 1701116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 1702116770Sluigi &which, sizeof(which)); 1703109126Sdillon } else if (strncmp(*av, "dyn_keepalive", strlen(*av)) == 0) { 1704116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 1705116770Sluigi &which, sizeof(which)); 1706109126Sdillon } else { 1707109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 1708109126Sdillon } 1709109126Sdillon} 1710109126Sdillon 1711109126Sdillonstatic void 1712117469Sluigilist(int ac, char *av[], int show_counters) 171398943Sluigi{ 171498943Sluigi struct ip_fw *r; 171598943Sluigi ipfw_dyn_rule *dynrules, *d; 171698943Sluigi 1717117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 1718117469Sluigi char *lim; 1719117469Sluigi void *data = NULL; 1720112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 172198943Sluigi int exitval = EX_OK; 172298943Sluigi int lac; 172398943Sluigi char **lav; 1724117469Sluigi u_long rnum, last; 172598943Sluigi char *endptr; 172698943Sluigi int seen = 0; 172798943Sluigi 172898943Sluigi const int ocmd = do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 172998943Sluigi int nalloc = 1024; /* start somewhere... */ 173098943Sluigi 1731117328Sluigi if (test_only) { 1732117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 1733117328Sluigi return; 1734117328Sluigi } 1735117328Sluigi 173698943Sluigi ac--; 173798943Sluigi av++; 173898943Sluigi 173998943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 174098943Sluigi nbytes = nalloc; 174198943Sluigi 174298943Sluigi while (nbytes >= nalloc) { 174398943Sluigi nalloc = nalloc * 2 + 200; 174498943Sluigi nbytes = nalloc; 174598943Sluigi if ((data = realloc(data, nbytes)) == NULL) 174698943Sluigi err(EX_OSERR, "realloc"); 1747119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 174898943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 174998943Sluigi do_pipe ? "DUMMYNET" : "FW"); 175098943Sluigi } 175198943Sluigi 175298943Sluigi if (do_pipe) { 175398943Sluigi list_pipes(data, nbytes, ac, av); 175498943Sluigi goto done; 175598943Sluigi } 175698943Sluigi 175798943Sluigi /* 175898943Sluigi * Count static rules. They have variable size so we 175998943Sluigi * need to scan the list to count them. 176098943Sluigi */ 1761117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 1762117469Sluigi r->rulenum < 65535 && (char *)r < lim; 1763117469Sluigi ++nstat, r = NEXT(r) ) 176498943Sluigi ; /* nothing */ 176598943Sluigi 176698943Sluigi /* 176798943Sluigi * Count dynamic rules. This is easier as they have 176898943Sluigi * fixed size. 176998943Sluigi */ 1770117469Sluigi r = NEXT(r); 177198943Sluigi dynrules = (ipfw_dyn_rule *)r ; 1772117469Sluigi n = (char *)r - (char *)data; 177398943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 177498943Sluigi 1775112189Smaxim /* if showing stats, figure out column widths ahead of time */ 1776112189Smaxim bcwidth = pcwidth = 0; 1777117469Sluigi if (show_counters) { 1778117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 1779112189Smaxim /* packet counter */ 1780115793Sticso width = snprintf(NULL, 0, "%llu", 1781115793Sticso align_uint64(&r->pcnt)); 1782112189Smaxim if (width > pcwidth) 1783112189Smaxim pcwidth = width; 1784112189Smaxim 1785112189Smaxim /* byte counter */ 1786115793Sticso width = snprintf(NULL, 0, "%llu", 1787115793Sticso align_uint64(&r->bcnt)); 1788112189Smaxim if (width > bcwidth) 1789112189Smaxim bcwidth = width; 1790112189Smaxim } 1791112189Smaxim } 1792112189Smaxim if (do_dynamic && ndyn) { 1793112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 1794115793Sticso width = snprintf(NULL, 0, "%llu", 1795115793Sticso align_uint64(&d->pcnt)); 1796112189Smaxim if (width > pcwidth) 1797112189Smaxim pcwidth = width; 1798112189Smaxim 1799115793Sticso width = snprintf(NULL, 0, "%llu", 1800115793Sticso align_uint64(&d->bcnt)); 1801112189Smaxim if (width > bcwidth) 1802112189Smaxim bcwidth = width; 1803112189Smaxim } 1804112189Smaxim } 180598943Sluigi /* if no rule numbers were specified, list all rules */ 180698943Sluigi if (ac == 0) { 1807117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r) ) 1808112189Smaxim show_ipfw(r, pcwidth, bcwidth); 180998943Sluigi 181098943Sluigi if (do_dynamic && ndyn) { 181198943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 181298943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) 1813112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 181498943Sluigi } 181598943Sluigi goto done; 181698943Sluigi } 181798943Sluigi 181898943Sluigi /* display specific rules requested on command line */ 181998943Sluigi 182098943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 182198943Sluigi /* convert command line rule # */ 1822117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 1823117469Sluigi if (*endptr == '-') 1824117469Sluigi last = strtoul(endptr+1, &endptr, 10); 182598943Sluigi if (*endptr) { 182698943Sluigi exitval = EX_USAGE; 182798943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 182898943Sluigi continue; 182998943Sluigi } 1830117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 1831117469Sluigi if (r->rulenum > last) 183298943Sluigi break; 1833117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 1834112189Smaxim show_ipfw(r, pcwidth, bcwidth); 183598943Sluigi seen = 1; 183698943Sluigi } 183798943Sluigi } 183898943Sluigi if (!seen) { 183998943Sluigi /* give precedence to other error(s) */ 184098943Sluigi if (exitval == EX_OK) 184198943Sluigi exitval = EX_UNAVAILABLE; 184298943Sluigi warnx("rule %lu does not exist", rnum); 184398943Sluigi } 184498943Sluigi } 184598943Sluigi 184698943Sluigi if (do_dynamic && ndyn) { 184798943Sluigi printf("## Dynamic rules:\n"); 184898943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 184998943Sluigi rnum = strtoul(*lav++, &endptr, 10); 1850117469Sluigi if (*endptr == '-') 1851117469Sluigi last = strtoul(endptr+1, &endptr, 10); 185298943Sluigi if (*endptr) 185398943Sluigi /* already warned */ 185498943Sluigi continue; 185598943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 1856115793Sticso uint16_t rulenum; 1857115793Sticso 1858115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 1859115793Sticso if (rulenum > rnum) 186098943Sluigi break; 1861117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 1862112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 186398943Sluigi } 186498943Sluigi } 186598943Sluigi } 186698943Sluigi 186798943Sluigi ac = 0; 186898943Sluigi 186998943Sluigidone: 187098943Sluigi free(data); 187198943Sluigi 187298943Sluigi if (exitval != EX_OK) 187398943Sluigi exit(exitval); 1874117469Sluigi#undef NEXT 187598943Sluigi} 187698943Sluigi 187798943Sluigistatic void 187898943Sluigishow_usage(void) 187998943Sluigi{ 188098943Sluigi fprintf(stderr, "usage: ipfw [options]\n" 188198943Sluigi"do \"ipfw -h\" or see ipfw manpage for details\n" 188298943Sluigi); 188398943Sluigi exit(EX_USAGE); 188498943Sluigi} 188598943Sluigi 188698943Sluigistatic void 188798943Sluigihelp(void) 188898943Sluigi{ 1889117328Sluigi fprintf(stderr, 1890117328Sluigi"ipfw syntax summary (but please do read the ipfw(8) manpage):\n" 1891123495Sluigi"ipfw [-abcdefhnNqStTv] <command> where <command> is one of:\n" 1892117328Sluigi"add [num] [set N] [prob x] RULE-BODY\n" 1893117328Sluigi"{pipe|queue} N config PIPE-BODY\n" 1894117328Sluigi"[pipe|queue] {zero|delete|show} [N{,N}]\n" 1895117328Sluigi"set [disable N... enable N...] | move [rule] X to Y | swap X Y | show\n" 1896130281Sru"table N {add ip[/bits] [value] | delete ip[/bits] | flush | list}\n" 189798943Sluigi"\n" 1898117328Sluigi"RULE-BODY: check-state [LOG] | ACTION [LOG] ADDR [OPTION_LIST]\n" 189998943Sluigi"ACTION: check-state | allow | count | deny | reject | skipto N |\n" 190098943Sluigi" {divert|tee} PORT | forward ADDR | pipe N | queue N\n" 190198943Sluigi"ADDR: [ MAC dst src ether_type ] \n" 1902117544Sluigi" [ from IPADDR [ PORT ] to IPADDR [ PORTLIST ] ]\n" 1903130281Sru"IPADDR: [not] { any | me | ip/bits{x,y,z} | table(t[,v]) | IPLIST }\n" 1904117544Sluigi"IPLIST: { ip | ip/bits | ip:mask }[,IPLIST]\n" 1905117544Sluigi"OPTION_LIST: OPTION [OPTION_LIST]\n" 1906117328Sluigi"OPTION: bridged | {dst-ip|src-ip} ADDR | {dst-port|src-port} LIST |\n" 1907117328Sluigi" estab | frag | {gid|uid} N | icmptypes LIST | in | out | ipid LIST |\n" 1908117328Sluigi" iplen LIST | ipoptions SPEC | ipprecedence | ipsec | iptos SPEC |\n" 1909117328Sluigi" ipttl LIST | ipversion VER | keep-state | layer2 | limit ... |\n" 1910117328Sluigi" mac ... | mac-type LIST | proto LIST | {recv|xmit|via} {IF|IPADDR} |\n" 1911117328Sluigi" setup | {tcpack|tcpseq|tcpwin} NN | tcpflags SPEC | tcpoptions SPEC |\n" 1912133387Sandre" verrevpath | versrcreach | antispoof\n" 191398943Sluigi); 191498943Sluigiexit(0); 191598943Sluigi} 191698943Sluigi 191798943Sluigi 191898943Sluigistatic int 191998943Sluigilookup_host (char *host, struct in_addr *ipaddr) 192098943Sluigi{ 192198943Sluigi struct hostent *he; 192298943Sluigi 192398943Sluigi if (!inet_aton(host, ipaddr)) { 192498943Sluigi if ((he = gethostbyname(host)) == NULL) 192598943Sluigi return(-1); 192698943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 192798943Sluigi } 192898943Sluigi return(0); 192998943Sluigi} 193098943Sluigi 193198943Sluigi/* 193298943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 193398943Sluigi * Update length as appropriate. 193498943Sluigi * The following formats are allowed: 193598943Sluigi * any matches any IP. Actually returns an empty instruction. 193698943Sluigi * me returns O_IP_*_ME 193798943Sluigi * 1.2.3.4 single IP address 193898943Sluigi * 1.2.3.4:5.6.7.8 address:mask 193998943Sluigi * 1.2.3.4/24 address/mask 194098943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 1941117328Sluigi * We can have multiple comma-separated address/mask entries. 194298943Sluigi */ 194398943Sluigistatic void 194498943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 194598943Sluigi{ 1946117328Sluigi int len = 0; 1947117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 194898943Sluigi 194998943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 195098943Sluigi 195198943Sluigi if (!strncmp(av, "any", strlen(av))) 195298943Sluigi return; 195398943Sluigi 195498943Sluigi if (!strncmp(av, "me", strlen(av))) { 195598943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 195698943Sluigi return; 195798943Sluigi } 195898943Sluigi 1959130281Sru if (!strncmp(av, "table(", 6)) { 1960130281Sru char *p = strchr(av + 6, ','); 1961130281Sru 1962130281Sru if (p) 1963130281Sru *p++ = '\0'; 1964130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 1965130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 1966130281Sru if (p) { 1967130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 1968130281Sru d[0] = strtoul(p, NULL, 0); 1969130281Sru } else 1970130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 1971130281Sru return; 1972130281Sru } 1973130281Sru 1974117328Sluigi while (av) { 1975117328Sluigi /* 1976117328Sluigi * After the address we can have '/' or ':' indicating a mask, 1977117328Sluigi * ',' indicating another address follows, '{' indicating a 1978117328Sluigi * set of addresses of unspecified size. 1979117328Sluigi */ 1980117328Sluigi char *p = strpbrk(av, "/:,{"); 1981117328Sluigi int masklen; 1982117328Sluigi char md; 1983117328Sluigi 198498943Sluigi if (p) { 198598943Sluigi md = *p; 198698943Sluigi *p++ = '\0'; 1987117328Sluigi } else 1988117328Sluigi md = '\0'; 198998943Sluigi 1990117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 199198943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 199298943Sluigi switch (md) { 199398943Sluigi case ':': 1994117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 199598943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 199698943Sluigi break; 199798943Sluigi case '/': 1998117328Sluigi masklen = atoi(p); 1999117328Sluigi if (masklen == 0) 2000117328Sluigi d[1] = htonl(0); /* mask */ 2001117328Sluigi else if (masklen > 32) 200298943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 200398943Sluigi else 2004117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 200598943Sluigi break; 2006117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2007117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2008117328Sluigi *(--p) = md; 2009117328Sluigi break; 2010117328Sluigi 2011117328Sluigi case ',': /* single address plus continuation */ 2012117328Sluigi *(--p) = md; 2013117328Sluigi /* FALLTHROUGH */ 2014117328Sluigi case 0: /* initialization value */ 201598943Sluigi default: 2016117328Sluigi d[1] = htonl(~0); /* force /32 */ 201798943Sluigi break; 201898943Sluigi } 2019117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2020117328Sluigi /* find next separator */ 202198943Sluigi if (p) 2022117328Sluigi p = strpbrk(p, ",{"); 2023117328Sluigi if (p && *p == '{') { 2024117328Sluigi /* 2025117328Sluigi * We have a set of addresses. They are stored as follows: 2026117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2027117328Sluigi * addr is the base address IN HOST FORMAT 2028117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2029117328Sluigi * the next multiple of 32) with bits set 2030117328Sluigi * for each host in the map. 2031117328Sluigi */ 2032117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 203398943Sluigi int low, high; 2034117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 203598943Sluigi 2036117328Sluigi if (len > 0) 2037117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2038117328Sluigi if (i < 24 || i > 31) 2039117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2040117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2041117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 204298943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 204398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2044101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2045117328Sluigi map[i] = 0; /* clear map */ 204698943Sluigi 2047117328Sluigi av = p + 1; 2048117328Sluigi low = d[0] & 0xff; 204998943Sluigi high = low + cmd->o.arg1 - 1; 2050117328Sluigi /* 2051117328Sluigi * Here, i stores the previous value when we specify a range 2052117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2053117328Sluigi * have no previous value. 2054117328Sluigi */ 2055116716Sluigi i = -1; /* previous value in a range */ 205698943Sluigi while (isdigit(*av)) { 205798943Sluigi char *s; 2058117328Sluigi int a = strtol(av, &s, 0); 205998943Sluigi 2060117328Sluigi if (s == av) { /* no parameter */ 2061117328Sluigi if (*av != '}') 2062117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2063117328Sluigi if (i != -1) 2064117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2065117328Sluigi break; 2066117328Sluigi } 2067117328Sluigi if (a < low || a > high) 2068117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 206998943Sluigi a, low, high); 207098943Sluigi a -= low; 2071116716Sluigi if (i == -1) /* no previous in range */ 2072116716Sluigi i = a; 2073116716Sluigi else { /* check that range is valid */ 2074116716Sluigi if (i > a) 2075116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2076116716Sluigi i+low, a+low); 2077116716Sluigi if (*s == '-') 2078116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2079116716Sluigi } 2080116716Sluigi for (; i <= a; i++) 2081117328Sluigi map[i/32] |= 1<<(i & 31); 2082116716Sluigi i = -1; 2083116716Sluigi if (*s == '-') 2084116716Sluigi i = a; 2085117328Sluigi else if (*s == '}') 2086116716Sluigi break; 208798943Sluigi av = s+1; 208898943Sluigi } 208998943Sluigi return; 209098943Sluigi } 2091117328Sluigi av = p; 2092117328Sluigi if (av) /* then *av must be a ',' */ 2093117328Sluigi av++; 209498943Sluigi 2095117328Sluigi /* Check this entry */ 2096117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2097117328Sluigi /* 2098117328Sluigi * 'any' turns the entire list into a NOP. 2099117328Sluigi * 'not any' never matches, so it is removed from the 2100117328Sluigi * list unless it is the only item, in which case we 2101117328Sluigi * report an error. 2102117328Sluigi */ 2103117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2104117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2105117328Sluigi errx(EX_DATAERR, "not any never matches"); 2106117328Sluigi } 2107117328Sluigi /* else do nothing and skip this entry */ 2108128067Smaxim return; 2109117328Sluigi } 2110117328Sluigi /* A single IP can be stored in an optimized format */ 2111117328Sluigi if (d[1] == IP_MASK_ALL && av == NULL && len == 0) { 211298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2113117328Sluigi return; 2114117328Sluigi } 2115117328Sluigi len += 2; /* two words... */ 2116117328Sluigi d += 2; 2117117328Sluigi } /* end while */ 2118117328Sluigi cmd->o.len |= len+1; 211998943Sluigi} 212098943Sluigi 212198943Sluigi 212298943Sluigi/* 212398943Sluigi * helper function to process a set of flags and set bits in the 212498943Sluigi * appropriate masks. 212598943Sluigi */ 212698943Sluigistatic void 212798943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 212898943Sluigi struct _s_x *flags, char *p) 212998943Sluigi{ 2130117328Sluigi uint8_t set=0, clear=0; 213198943Sluigi 213298943Sluigi while (p && *p) { 213398943Sluigi char *q; /* points to the separator */ 213498943Sluigi int val; 2135117328Sluigi uint8_t *which; /* mask we are working on */ 213698943Sluigi 213798943Sluigi if (*p == '!') { 213898943Sluigi p++; 213998943Sluigi which = &clear; 214098943Sluigi } else 214198943Sluigi which = &set; 214298943Sluigi q = strchr(p, ','); 214398943Sluigi if (q) 214498943Sluigi *q++ = '\0'; 214598943Sluigi val = match_token(flags, p); 214698943Sluigi if (val <= 0) 214798943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 2148117328Sluigi *which |= (uint8_t)val; 214998943Sluigi p = q; 215098943Sluigi } 215198943Sluigi cmd->opcode = opcode; 215298943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 215398943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 215498943Sluigi} 215598943Sluigi 215698943Sluigi 215798943Sluigistatic void 215898943Sluigidelete(int ac, char *av[]) 215998943Sluigi{ 2160117328Sluigi uint32_t rulenum; 2161117469Sluigi struct dn_pipe p; 216298943Sluigi int i; 216398943Sluigi int exitval = EX_OK; 2164101628Sluigi int do_set = 0; 216598943Sluigi 2166117469Sluigi memset(&p, 0, sizeof p); 216798943Sluigi 216898943Sluigi av++; ac--; 2169130013Scsjp NEED1("missing rule specification"); 2170101641Sluigi if (ac > 0 && !strncmp(*av, "set", strlen(*av))) { 2171101978Sluigi do_set = 1; /* delete set */ 2172101628Sluigi ac--; av++; 2173101978Sluigi } 217498943Sluigi 217598943Sluigi /* Rule number */ 217698943Sluigi while (ac && isdigit(**av)) { 217798943Sluigi i = atoi(*av); av++; ac--; 217898943Sluigi if (do_pipe) { 217998943Sluigi if (do_pipe == 1) 2180117469Sluigi p.pipe_nr = i; 218198943Sluigi else 2182117469Sluigi p.fs.fs_nr = i; 2183117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 218498943Sluigi if (i) { 218598943Sluigi exitval = 1; 218698943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 2187117469Sluigi do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 218898943Sluigi } 218998943Sluigi } else { 2190101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 2191117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 219298943Sluigi if (i) { 219398943Sluigi exitval = EX_UNAVAILABLE; 219498943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 219598943Sluigi rulenum); 219698943Sluigi } 219798943Sluigi } 219898943Sluigi } 219998943Sluigi if (exitval != EX_OK) 220098943Sluigi exit(exitval); 220198943Sluigi} 220298943Sluigi 220398943Sluigi 220498943Sluigi/* 220598943Sluigi * fill the interface structure. We do not check the name as we can 220698943Sluigi * create interfaces dynamically, so checking them at insert time 220798943Sluigi * makes relatively little sense. 2208121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 2209121816Sbrooks * patterns which match interfaces. 221098943Sluigi */ 221198943Sluigistatic void 221298943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 221398943Sluigi{ 221498943Sluigi cmd->name[0] = '\0'; 221598943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 221698943Sluigi 221798943Sluigi /* Parse the interface or address */ 221898943Sluigi if (!strcmp(arg, "any")) 221998943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 222098943Sluigi else if (!isdigit(*arg)) { 2221121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 2222121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 222398943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 222498943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 222598943Sluigi} 222698943Sluigi 222798943Sluigistatic void 222898943Sluigiconfig_pipe(int ac, char **av) 222998943Sluigi{ 2230117469Sluigi struct dn_pipe p; 223198943Sluigi int i; 223298943Sluigi char *end; 2233117328Sluigi uint32_t a; 223498943Sluigi void *par = NULL; 223598943Sluigi 2236117469Sluigi memset(&p, 0, sizeof p); 223798943Sluigi 223898943Sluigi av++; ac--; 223998943Sluigi /* Pipe number */ 224098943Sluigi if (ac && isdigit(**av)) { 224198943Sluigi i = atoi(*av); av++; ac--; 224298943Sluigi if (do_pipe == 1) 2243117469Sluigi p.pipe_nr = i; 224498943Sluigi else 2245117469Sluigi p.fs.fs_nr = i; 224698943Sluigi } 224799475Sluigi while (ac > 0) { 224898943Sluigi double d; 224998943Sluigi int tok = match_token(dummynet_params, *av); 225098943Sluigi ac--; av++; 225198943Sluigi 225298943Sluigi switch(tok) { 2253101978Sluigi case TOK_NOERROR: 2254117469Sluigi p.fs.flags_fs |= DN_NOERROR; 2255101978Sluigi break; 2256101978Sluigi 225798943Sluigi case TOK_PLR: 225898943Sluigi NEED1("plr needs argument 0..1\n"); 225998943Sluigi d = strtod(av[0], NULL); 226098943Sluigi if (d > 1) 226198943Sluigi d = 1; 226298943Sluigi else if (d < 0) 226398943Sluigi d = 0; 2264117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 226598943Sluigi ac--; av++; 226698943Sluigi break; 226798943Sluigi 226898943Sluigi case TOK_QUEUE: 226998943Sluigi NEED1("queue needs queue size\n"); 227098943Sluigi end = NULL; 2271117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 227298943Sluigi if (*end == 'K' || *end == 'k') { 2273117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 2274117469Sluigi p.fs.qsize *= 1024; 227598943Sluigi } else if (*end == 'B' || !strncmp(end, "by", 2)) { 2276117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 227798943Sluigi } 227898943Sluigi ac--; av++; 227998943Sluigi break; 228098943Sluigi 228198943Sluigi case TOK_BUCKETS: 228298943Sluigi NEED1("buckets needs argument\n"); 2283117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 228498943Sluigi ac--; av++; 228598943Sluigi break; 228698943Sluigi 228798943Sluigi case TOK_MASK: 228898943Sluigi NEED1("mask needs mask specifier\n"); 228998943Sluigi /* 229098943Sluigi * per-flow queue, mask is dst_ip, dst_port, 229198943Sluigi * src_ip, src_port, proto measured in bits 229298943Sluigi */ 229398943Sluigi par = NULL; 229498943Sluigi 2295117469Sluigi p.fs.flow_mask.dst_ip = 0; 2296117469Sluigi p.fs.flow_mask.src_ip = 0; 2297117469Sluigi p.fs.flow_mask.dst_port = 0; 2298117469Sluigi p.fs.flow_mask.src_port = 0; 2299117469Sluigi p.fs.flow_mask.proto = 0; 230098943Sluigi end = NULL; 230198943Sluigi 230298943Sluigi while (ac >= 1) { 2303117328Sluigi uint32_t *p32 = NULL; 2304117328Sluigi uint16_t *p16 = NULL; 230598943Sluigi 230698943Sluigi tok = match_token(dummynet_params, *av); 230798943Sluigi ac--; av++; 230898943Sluigi switch(tok) { 230998943Sluigi case TOK_ALL: 231098943Sluigi /* 231198943Sluigi * special case, all bits significant 231298943Sluigi */ 2313117469Sluigi p.fs.flow_mask.dst_ip = ~0; 2314117469Sluigi p.fs.flow_mask.src_ip = ~0; 2315117469Sluigi p.fs.flow_mask.dst_port = ~0; 2316117469Sluigi p.fs.flow_mask.src_port = ~0; 2317117469Sluigi p.fs.flow_mask.proto = ~0; 2318117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 231998943Sluigi goto end_mask; 232098943Sluigi 232198943Sluigi case TOK_DSTIP: 2322117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 232398943Sluigi break; 232498943Sluigi 232598943Sluigi case TOK_SRCIP: 2326117469Sluigi p32 = &p.fs.flow_mask.src_ip; 232798943Sluigi break; 232898943Sluigi 232998943Sluigi case TOK_DSTPORT: 2330117469Sluigi p16 = &p.fs.flow_mask.dst_port; 233198943Sluigi break; 233298943Sluigi 233398943Sluigi case TOK_SRCPORT: 2334117469Sluigi p16 = &p.fs.flow_mask.src_port; 233598943Sluigi break; 233698943Sluigi 233798943Sluigi case TOK_PROTO: 233898943Sluigi break; 233998943Sluigi 234098943Sluigi default: 234198943Sluigi ac++; av--; /* backtrack */ 234298943Sluigi goto end_mask; 234398943Sluigi } 234498943Sluigi if (ac < 1) 234598943Sluigi errx(EX_USAGE, "mask: value missing"); 234698943Sluigi if (*av[0] == '/') { 234798943Sluigi a = strtoul(av[0]+1, &end, 0); 234898943Sluigi a = (a == 32) ? ~0 : (1 << a) - 1; 2349106505Smaxim } else 235099909Sluigi a = strtoul(av[0], &end, 0); 235198943Sluigi if (p32 != NULL) 235298943Sluigi *p32 = a; 235398943Sluigi else if (p16 != NULL) { 235498943Sluigi if (a > 65535) 235598943Sluigi errx(EX_DATAERR, 235698943Sluigi "mask: must be 16 bit"); 2357117328Sluigi *p16 = (uint16_t)a; 235898943Sluigi } else { 235998943Sluigi if (a > 255) 236098943Sluigi errx(EX_DATAERR, 236198943Sluigi "mask: must be 8 bit"); 2362117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 236398943Sluigi } 236498943Sluigi if (a != 0) 2365117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 236698943Sluigi ac--; av++; 236798943Sluigi } /* end while, config masks */ 236898943Sluigiend_mask: 236998943Sluigi break; 237098943Sluigi 237198943Sluigi case TOK_RED: 237298943Sluigi case TOK_GRED: 237398943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 2374117469Sluigi p.fs.flags_fs |= DN_IS_RED; 237598943Sluigi if (tok == TOK_GRED) 2376117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 237798943Sluigi /* 237898943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 237998943Sluigi */ 238098943Sluigi if ((end = strsep(&av[0], "/"))) { 238198943Sluigi double w_q = strtod(end, NULL); 238298943Sluigi if (w_q > 1 || w_q <= 0) 238398943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 2384117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 238598943Sluigi } 238698943Sluigi if ((end = strsep(&av[0], "/"))) { 2387117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 238898943Sluigi if (*end == 'K' || *end == 'k') 2389117469Sluigi p.fs.min_th *= 1024; 239098943Sluigi } 239198943Sluigi if ((end = strsep(&av[0], "/"))) { 2392117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 239398943Sluigi if (*end == 'K' || *end == 'k') 2394117469Sluigi p.fs.max_th *= 1024; 239598943Sluigi } 239698943Sluigi if ((end = strsep(&av[0], "/"))) { 239798943Sluigi double max_p = strtod(end, NULL); 239898943Sluigi if (max_p > 1 || max_p <= 0) 239998943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 2400117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 240198943Sluigi } 240298943Sluigi ac--; av++; 240398943Sluigi break; 240498943Sluigi 240598943Sluigi case TOK_DROPTAIL: 2406117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 240798943Sluigi break; 2408106505Smaxim 240998943Sluigi case TOK_BW: 241098943Sluigi NEED1("bw needs bandwidth or interface\n"); 241198943Sluigi if (do_pipe != 1) 241298943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 241398943Sluigi /* 241498943Sluigi * set clocking interface or bandwidth value 241598943Sluigi */ 241698943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 2417117469Sluigi int l = sizeof(p.if_name)-1; 241898943Sluigi /* interface name */ 2419117469Sluigi strncpy(p.if_name, av[0], l); 2420117469Sluigi p.if_name[l] = '\0'; 2421117469Sluigi p.bandwidth = 0; 242298943Sluigi } else { 2423117469Sluigi p.if_name[0] = '\0'; 2424117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 242598943Sluigi if (*end == 'K' || *end == 'k') { 242698943Sluigi end++; 2427117469Sluigi p.bandwidth *= 1000; 242898943Sluigi } else if (*end == 'M') { 242998943Sluigi end++; 2430117469Sluigi p.bandwidth *= 1000000; 243198943Sluigi } 243298943Sluigi if (*end == 'B' || !strncmp(end, "by", 2)) 2433117469Sluigi p.bandwidth *= 8; 2434117469Sluigi if (p.bandwidth < 0) 243598943Sluigi errx(EX_DATAERR, "bandwidth too large"); 243698943Sluigi } 243798943Sluigi ac--; av++; 243898943Sluigi break; 243998943Sluigi 244098943Sluigi case TOK_DELAY: 244198943Sluigi if (do_pipe != 1) 244298943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 244398943Sluigi NEED1("delay needs argument 0..10000ms\n"); 2444117469Sluigi p.delay = strtoul(av[0], NULL, 0); 244598943Sluigi ac--; av++; 244698943Sluigi break; 244798943Sluigi 244898943Sluigi case TOK_WEIGHT: 244998943Sluigi if (do_pipe == 1) 245098943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 245198943Sluigi NEED1("weight needs argument 0..100\n"); 2452117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 245398943Sluigi ac--; av++; 245498943Sluigi break; 245598943Sluigi 245698943Sluigi case TOK_PIPE: 245798943Sluigi if (do_pipe == 1) 245898943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 245998943Sluigi NEED1("pipe needs pipe_number\n"); 2460117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 246198943Sluigi ac--; av++; 246298943Sluigi break; 246398943Sluigi 246498943Sluigi default: 2465124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 246698943Sluigi } 246798943Sluigi } 246898943Sluigi if (do_pipe == 1) { 2469117469Sluigi if (p.pipe_nr == 0) 247098943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 2471117469Sluigi if (p.delay > 10000) 247298943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 247398943Sluigi } else { /* do_pipe == 2, queue */ 2474117469Sluigi if (p.fs.parent_nr == 0) 247598943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 2476117469Sluigi if (p.fs.weight >100) 247798943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 247898943Sluigi } 2479117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 2480117469Sluigi if (p.fs.qsize > 1024*1024) 248198943Sluigi errx(EX_DATAERR, "queue size must be < 1MB"); 248298943Sluigi } else { 2483117469Sluigi if (p.fs.qsize > 100) 248498943Sluigi errx(EX_DATAERR, "2 <= queue size <= 100"); 248598943Sluigi } 2486117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 248798943Sluigi size_t len; 248898943Sluigi int lookup_depth, avg_pkt_size; 248998943Sluigi double s, idle, weight, w_q; 2490117469Sluigi struct clockinfo ck; 249198943Sluigi int t; 249298943Sluigi 2493117469Sluigi if (p.fs.min_th >= p.fs.max_th) 249498943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 2495117469Sluigi p.fs.min_th, p.fs.max_th); 2496117469Sluigi if (p.fs.max_th == 0) 249798943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 249898943Sluigi 249998943Sluigi len = sizeof(int); 250098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 250198943Sluigi &lookup_depth, &len, NULL, 0) == -1) 250298943Sluigi 250398943Sluigi errx(1, "sysctlbyname(\"%s\")", 250498943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 250598943Sluigi if (lookup_depth == 0) 250698943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 250798943Sluigi " must be greater than zero"); 250898943Sluigi 250998943Sluigi len = sizeof(int); 251098943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 251198943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 251298943Sluigi 251398943Sluigi errx(1, "sysctlbyname(\"%s\")", 251498943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 251598943Sluigi if (avg_pkt_size == 0) 251698943Sluigi errx(EX_DATAERR, 251798943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 251898943Sluigi " be greater than zero"); 251998943Sluigi 252098943Sluigi len = sizeof(struct clockinfo); 2521117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 252298943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 252398943Sluigi 252498943Sluigi /* 252598943Sluigi * Ticks needed for sending a medium-sized packet. 252698943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 252798943Sluigi * do not have bandwidth information, because that is stored 252898943Sluigi * in the parent pipe, and also we have multiple queues 252998943Sluigi * competing for it. So we set s=0, which is not very 253098943Sluigi * correct. But on the other hand, why do we want RED with 253198943Sluigi * WF2Q+ ? 253298943Sluigi */ 2533117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 253498943Sluigi s = 0; 253598943Sluigi else 2536117469Sluigi s = ck.hz * avg_pkt_size * 8 / p.bandwidth; 253798943Sluigi 253898943Sluigi /* 253998943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 254098943Sluigi * NOTA: (3/w_q) is approx the value x so that 254198943Sluigi * (1-w_q)^x < 10^-3. 254298943Sluigi */ 2543117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 254498943Sluigi idle = s * 3. / w_q; 2545117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 2546117469Sluigi if (!p.fs.lookup_step) 2547117469Sluigi p.fs.lookup_step = 1; 254898943Sluigi weight = 1 - w_q; 2549117469Sluigi for (t = p.fs.lookup_step; t > 0; --t) 255098943Sluigi weight *= weight; 2551117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 255298943Sluigi } 2553117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 255498943Sluigi if (i) 255598943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 255698943Sluigi} 255798943Sluigi 255898943Sluigistatic void 2559117577Sluigiget_mac_addr_mask(char *p, uint8_t *addr, uint8_t *mask) 256098943Sluigi{ 256198943Sluigi int i, l; 256298943Sluigi 256398943Sluigi for (i=0; i<6; i++) 256498943Sluigi addr[i] = mask[i] = 0; 256598943Sluigi if (!strcmp(p, "any")) 256698943Sluigi return; 256798943Sluigi 256898943Sluigi for (i=0; *p && i<6;i++, p++) { 256998943Sluigi addr[i] = strtol(p, &p, 16); 257098943Sluigi if (*p != ':') /* we start with the mask */ 257198943Sluigi break; 257298943Sluigi } 257398943Sluigi if (*p == '/') { /* mask len */ 257498943Sluigi l = strtol(p+1, &p, 0); 257598943Sluigi for (i=0; l>0; l -=8, i++) 257698943Sluigi mask[i] = (l >=8) ? 0xff : (~0) << (8-l); 257798943Sluigi } else if (*p == '&') { /* mask */ 257898943Sluigi for (i=0, p++; *p && i<6;i++, p++) { 257998943Sluigi mask[i] = strtol(p, &p, 16); 258098943Sluigi if (*p != ':') 258198943Sluigi break; 258298943Sluigi } 258398943Sluigi } else if (*p == '\0') { 258498943Sluigi for (i=0; i<6; i++) 258598943Sluigi mask[i] = 0xff; 258698943Sluigi } 258798943Sluigi for (i=0; i<6; i++) 258898943Sluigi addr[i] &= mask[i]; 258998943Sluigi} 259098943Sluigi 259198943Sluigi/* 259298943Sluigi * helper function, updates the pointer to cmd with the length 259398943Sluigi * of the current command, and also cleans up the first word of 259498943Sluigi * the new command in case it has been clobbered before. 259598943Sluigi */ 259698943Sluigistatic ipfw_insn * 259798943Sluiginext_cmd(ipfw_insn *cmd) 259898943Sluigi{ 259998943Sluigi cmd += F_LEN(cmd); 260098943Sluigi bzero(cmd, sizeof(*cmd)); 260198943Sluigi return cmd; 260298943Sluigi} 260398943Sluigi 260498943Sluigi/* 2605117469Sluigi * Takes arguments and copies them into a comment 2606117469Sluigi */ 2607117469Sluigistatic void 2608117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 2609117469Sluigi{ 2610117469Sluigi int i, l; 2611117469Sluigi char *p = (char *)(cmd + 1); 2612117577Sluigi 2613117469Sluigi cmd->opcode = O_NOP; 2614117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 2615117469Sluigi 2616117469Sluigi /* Compute length of comment string. */ 2617117469Sluigi for (i = 0, l = 0; i < ac; i++) 2618117469Sluigi l += strlen(av[i]) + 1; 2619117469Sluigi if (l == 0) 2620117469Sluigi return; 2621117469Sluigi if (l > 84) 2622117469Sluigi errx(EX_DATAERR, 2623117469Sluigi "comment too long (max 80 chars)"); 2624117469Sluigi l = 1 + (l+3)/4; 2625117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 2626117469Sluigi for (i = 0; i < ac; i++) { 2627117469Sluigi strcpy(p, av[i]); 2628117469Sluigi p += strlen(av[i]); 2629117469Sluigi *p++ = ' '; 2630117469Sluigi } 2631117469Sluigi *(--p) = '\0'; 2632117469Sluigi} 2633117577Sluigi 2634117469Sluigi/* 263598943Sluigi * A function to fill simple commands of size 1. 263698943Sluigi * Existing flags are preserved. 263798943Sluigi */ 263898943Sluigistatic void 2639117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 264098943Sluigi{ 264198943Sluigi cmd->opcode = opcode; 264298943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 264398943Sluigi cmd->arg1 = arg; 264498943Sluigi} 264598943Sluigi 264698943Sluigi/* 264798943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 264898943Sluigi * two microinstructions, and returns the pointer to the last one. 264998943Sluigi */ 265098943Sluigistatic ipfw_insn * 265198943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 265298943Sluigi{ 2653102087Sluigi ipfw_insn_mac *mac; 265498943Sluigi 2655102087Sluigi if (ac < 2) 2656102098Sluigi errx(EX_DATAERR, "MAC dst src"); 265798943Sluigi 265898943Sluigi cmd->opcode = O_MACADDR2; 265998943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 266098943Sluigi 266198943Sluigi mac = (ipfw_insn_mac *)cmd; 2662101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 266398943Sluigi get_mac_addr_mask(av[1], &(mac->addr[6]), &(mac->mask[6])); /* src */ 2664102087Sluigi return cmd; 2665102087Sluigi} 266698943Sluigi 2667102087Sluigistatic ipfw_insn * 2668102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 2669102087Sluigi{ 2670102087Sluigi if (ac < 1) 2671102087Sluigi errx(EX_DATAERR, "missing MAC type"); 2672102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 2673102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 267498943Sluigi cmd->opcode = O_MAC_TYPE; 2675102087Sluigi return cmd; 2676102087Sluigi } else 2677102087Sluigi return NULL; 2678102087Sluigi} 267998943Sluigi 2680102087Sluigistatic ipfw_insn * 2681102087Sluigiadd_proto(ipfw_insn *cmd, char *av) 2682102087Sluigi{ 2683102087Sluigi struct protoent *pe; 2684102087Sluigi u_char proto = 0; 2685102087Sluigi 2686102087Sluigi if (!strncmp(av, "all", strlen(av))) 2687102087Sluigi ; /* same as "ip" */ 2688102087Sluigi else if ((proto = atoi(av)) > 0) 2689102087Sluigi ; /* all done! */ 2690102087Sluigi else if ((pe = getprotobyname(av)) != NULL) 2691102087Sluigi proto = pe->p_proto; 2692102087Sluigi else 2693102098Sluigi return NULL; 2694102087Sluigi if (proto != IPPROTO_IP) 2695102087Sluigi fill_cmd(cmd, O_PROTO, 0, proto); 269698943Sluigi return cmd; 269798943Sluigi} 269898943Sluigi 2699102087Sluigistatic ipfw_insn * 2700102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 2701102087Sluigi{ 2702102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 2703102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 2704102087Sluigi cmd->opcode = O_IP_SRC_SET; 2705130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 2706130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 2707102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 2708102087Sluigi cmd->opcode = O_IP_SRC_ME; 2709102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 2710102087Sluigi cmd->opcode = O_IP_SRC; 2711117328Sluigi else /* addr/mask */ 2712102087Sluigi cmd->opcode = O_IP_SRC_MASK; 2713102087Sluigi return cmd; 2714102087Sluigi} 2715102087Sluigi 2716102087Sluigistatic ipfw_insn * 2717102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 2718102087Sluigi{ 2719102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 2720102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 2721102087Sluigi ; 2722130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 2723130281Sru ; 2724102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 2725102087Sluigi cmd->opcode = O_IP_DST_ME; 2726102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 2727102087Sluigi cmd->opcode = O_IP_DST; 2728117328Sluigi else /* addr/mask */ 2729102087Sluigi cmd->opcode = O_IP_DST_MASK; 2730102087Sluigi return cmd; 2731102087Sluigi} 2732102087Sluigi 2733102087Sluigistatic ipfw_insn * 2734102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 2735102087Sluigi{ 2736102087Sluigi if (!strncmp(av, "any", strlen(av))) { 2737102087Sluigi return NULL; 2738102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 2739102087Sluigi /* XXX todo: check that we have a protocol with ports */ 2740102087Sluigi cmd->opcode = opcode; 2741102087Sluigi return cmd; 2742102087Sluigi } 2743102087Sluigi return NULL; 2744102087Sluigi} 2745102087Sluigi 274698943Sluigi/* 274798943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 274898943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 274998943Sluigi * into the actual rule. 275098943Sluigi * 275198943Sluigi * The syntax for a rule starts with the action, followed by an 275298943Sluigi * optional log action, and the various match patterns. 2753108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 275498943Sluigi * (generated if the rule includes a keep-state option), then the 275598943Sluigi * various match patterns, the "log" action, and the actual action. 2756106505Smaxim * 275798943Sluigi */ 275898943Sluigistatic void 275998943Sluigiadd(int ac, char *av[]) 276098943Sluigi{ 276198943Sluigi /* 276298943Sluigi * rules are added into the 'rulebuf' and then copied in 276398943Sluigi * the correct order into the actual rule. 276498943Sluigi * Some things that need to go out of order (prob, action etc.) 276598943Sluigi * go into actbuf[]. 276698943Sluigi */ 2767117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 276898943Sluigi 2769117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 2770102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 277198943Sluigi 277298943Sluigi struct ip_fw *rule; 277398943Sluigi 277498943Sluigi /* 277598943Sluigi * various flags used to record that we entered some fields. 277698943Sluigi */ 2777101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 277898943Sluigi 277998943Sluigi int i; 278098943Sluigi 278198943Sluigi int open_par = 0; /* open parenthesis ( */ 278298943Sluigi 278398943Sluigi /* proto is here because it is used to fetch ports */ 278498943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 278598943Sluigi 2786107289Sluigi double match_prob = 1; /* match probability, default is always match */ 2787107289Sluigi 278898943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 278998943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 279098943Sluigi bzero(rulebuf, sizeof(rulebuf)); 279198943Sluigi 279298943Sluigi rule = (struct ip_fw *)rulebuf; 279398943Sluigi cmd = (ipfw_insn *)cmdbuf; 279498943Sluigi action = (ipfw_insn *)actbuf; 279598943Sluigi 279698943Sluigi av++; ac--; 279798943Sluigi 279898943Sluigi /* [rule N] -- Rule number optional */ 279998943Sluigi if (ac && isdigit(**av)) { 280098943Sluigi rule->rulenum = atoi(*av); 280198943Sluigi av++; 280298943Sluigi ac--; 280398943Sluigi } 280498943Sluigi 2805117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 2806101628Sluigi if (ac > 1 && !strncmp(*av, "set", strlen(*av))) { 2807101628Sluigi int set = strtoul(av[1], NULL, 10); 2808117655Sluigi if (set < 0 || set > RESVD_SET) 2809101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 2810101628Sluigi rule->set = set; 2811101628Sluigi av += 2; ac -= 2; 2812101628Sluigi } 2813101628Sluigi 281498943Sluigi /* [prob D] -- match probability, optional */ 281598943Sluigi if (ac > 1 && !strncmp(*av, "prob", strlen(*av))) { 2816107289Sluigi match_prob = strtod(av[1], NULL); 281798943Sluigi 2818107289Sluigi if (match_prob <= 0 || match_prob > 1) 281998943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 282098943Sluigi av += 2; ac -= 2; 282198943Sluigi } 282298943Sluigi 282398943Sluigi /* action -- mandatory */ 282498943Sluigi NEED1("missing action"); 282598943Sluigi i = match_token(rule_actions, *av); 282698943Sluigi ac--; av++; 282798943Sluigi action->len = 1; /* default */ 282898943Sluigi switch(i) { 282998943Sluigi case TOK_CHECKSTATE: 2830101116Sluigi have_state = action; 283198943Sluigi action->opcode = O_CHECK_STATE; 283298943Sluigi break; 283398943Sluigi 283498943Sluigi case TOK_ACCEPT: 283598943Sluigi action->opcode = O_ACCEPT; 283698943Sluigi break; 283798943Sluigi 283898943Sluigi case TOK_DENY: 283998943Sluigi action->opcode = O_DENY; 284099475Sluigi action->arg1 = 0; 284198943Sluigi break; 284298943Sluigi 284399475Sluigi case TOK_REJECT: 284499475Sluigi action->opcode = O_REJECT; 284599475Sluigi action->arg1 = ICMP_UNREACH_HOST; 284699475Sluigi break; 284799475Sluigi 284899475Sluigi case TOK_RESET: 284999475Sluigi action->opcode = O_REJECT; 285099475Sluigi action->arg1 = ICMP_REJECT_RST; 285199475Sluigi break; 285299475Sluigi 285399475Sluigi case TOK_UNREACH: 285499475Sluigi action->opcode = O_REJECT; 285599475Sluigi NEED1("missing reject code"); 285699475Sluigi fill_reject_code(&action->arg1, *av); 285799475Sluigi ac--; av++; 285899475Sluigi break; 285999475Sluigi 286098943Sluigi case TOK_COUNT: 286198943Sluigi action->opcode = O_COUNT; 286298943Sluigi break; 286398943Sluigi 286498943Sluigi case TOK_QUEUE: 286598943Sluigi case TOK_PIPE: 286698943Sluigi action->len = F_INSN_SIZE(ipfw_insn_pipe); 286798943Sluigi case TOK_SKIPTO: 286898943Sluigi if (i == TOK_QUEUE) 286998943Sluigi action->opcode = O_QUEUE; 287098943Sluigi else if (i == TOK_PIPE) 287198943Sluigi action->opcode = O_PIPE; 287298943Sluigi else if (i == TOK_SKIPTO) 287398943Sluigi action->opcode = O_SKIPTO; 287498943Sluigi NEED1("missing skipto/pipe/queue number"); 287598943Sluigi action->arg1 = strtoul(*av, NULL, 10); 287698943Sluigi av++; ac--; 287798943Sluigi break; 287898943Sluigi 287998943Sluigi case TOK_DIVERT: 288098943Sluigi case TOK_TEE: 288198943Sluigi action->opcode = (i == TOK_DIVERT) ? O_DIVERT : O_TEE; 288298943Sluigi NEED1("missing divert/tee port"); 288398943Sluigi action->arg1 = strtoul(*av, NULL, 0); 288498943Sluigi if (action->arg1 == 0) { 288598943Sluigi struct servent *s; 288698943Sluigi setservent(1); 288798943Sluigi s = getservbyname(av[0], "divert"); 288898943Sluigi if (s != NULL) 288998943Sluigi action->arg1 = ntohs(s->s_port); 289098943Sluigi else 289198943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 289298943Sluigi } 289398943Sluigi ac--; av++; 289498943Sluigi break; 289598943Sluigi 289698943Sluigi case TOK_FORWARD: { 289798943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 289898943Sluigi char *s, *end; 289998943Sluigi 290098943Sluigi NEED1("missing forward address[:port]"); 290198943Sluigi 290298943Sluigi action->opcode = O_FORWARD_IP; 290398943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 290498943Sluigi 290598943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 290698943Sluigi p->sa.sin_family = AF_INET; 290798943Sluigi p->sa.sin_port = 0; 290898943Sluigi /* 290998943Sluigi * locate the address-port separator (':' or ',') 291098943Sluigi */ 291198943Sluigi s = strchr(*av, ':'); 291298943Sluigi if (s == NULL) 291398943Sluigi s = strchr(*av, ','); 291498943Sluigi if (s != NULL) { 291598943Sluigi *(s++) = '\0'; 291698943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 291798943Sluigi if (s == end) 291898943Sluigi errx(EX_DATAERR, 291998943Sluigi "illegal forwarding port ``%s''", s); 2920103241Sluigi p->sa.sin_port = (u_short)i; 292198943Sluigi } 292298943Sluigi lookup_host(*av, &(p->sa.sin_addr)); 292398943Sluigi } 292498943Sluigi ac--; av++; 292598943Sluigi break; 292698943Sluigi 2927117469Sluigi case TOK_COMMENT: 2928117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 2929117469Sluigi action->opcode = O_COUNT; 2930117469Sluigi ac++; av--; /* go back... */ 2931117469Sluigi break; 2932117469Sluigi 293398943Sluigi default: 2934102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 293598943Sluigi } 293698943Sluigi action = next_cmd(action); 293798943Sluigi 293898943Sluigi /* 293998943Sluigi * [log [logamount N]] -- log, optional 294098943Sluigi * 294198943Sluigi * If exists, it goes first in the cmdbuf, but then it is 294298943Sluigi * skipped in the copy section to the end of the buffer. 294398943Sluigi */ 294498943Sluigi if (ac && !strncmp(*av, "log", strlen(*av))) { 294598943Sluigi ipfw_insn_log *c = (ipfw_insn_log *)cmd; 2946117469Sluigi int l; 294798943Sluigi 294898943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_log); 294998943Sluigi cmd->opcode = O_LOG; 295098943Sluigi av++; ac--; 295198943Sluigi if (ac && !strncmp(*av, "logamount", strlen(*av))) { 295298943Sluigi ac--; av++; 295398943Sluigi NEED1("logamount requires argument"); 2954117469Sluigi l = atoi(*av); 2955117469Sluigi if (l < 0) 295698943Sluigi errx(EX_DATAERR, "logamount must be positive"); 2957117469Sluigi c->max_log = l; 295898943Sluigi ac--; av++; 295998943Sluigi } 296098943Sluigi cmd = next_cmd(cmd); 296198943Sluigi } 296298943Sluigi 2963101116Sluigi if (have_state) /* must be a check-state, we are done */ 296498943Sluigi goto done; 296598943Sluigi 296698943Sluigi#define OR_START(target) \ 296798943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 296898943Sluigi if (open_par) \ 296998943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 2970101641Sluigi prev = NULL; \ 297198943Sluigi open_par = 1; \ 297298943Sluigi if ( (av[0])[1] == '\0') { \ 297398943Sluigi ac--; av++; \ 297498943Sluigi } else \ 297598943Sluigi (*av)++; \ 297698943Sluigi } \ 297798943Sluigi target: \ 297898943Sluigi 297998943Sluigi 298098943Sluigi#define CLOSE_PAR \ 298198943Sluigi if (open_par) { \ 298298943Sluigi if (ac && ( \ 298398943Sluigi !strncmp(*av, ")", strlen(*av)) || \ 298498943Sluigi !strncmp(*av, "}", strlen(*av)) )) { \ 2985101641Sluigi prev = NULL; \ 298698943Sluigi open_par = 0; \ 298798943Sluigi ac--; av++; \ 298898943Sluigi } else \ 298998943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 299098943Sluigi } 2991106505Smaxim 299298943Sluigi#define NOT_BLOCK \ 299398943Sluigi if (ac && !strncmp(*av, "not", strlen(*av))) { \ 299498943Sluigi if (cmd->len & F_NOT) \ 299598943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 299698943Sluigi cmd->len |= F_NOT; \ 299798943Sluigi ac--; av++; \ 299898943Sluigi } 299998943Sluigi 300098943Sluigi#define OR_BLOCK(target) \ 300198943Sluigi if (ac && !strncmp(*av, "or", strlen(*av))) { \ 300298943Sluigi if (prev == NULL || open_par == 0) \ 300398943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 300498943Sluigi prev->len |= F_OR; \ 300598943Sluigi ac--; av++; \ 300698943Sluigi goto target; \ 300798943Sluigi } \ 300898943Sluigi CLOSE_PAR; 300998943Sluigi 3010102087Sluigi first_cmd = cmd; 3011102098Sluigi 3012102098Sluigi#if 0 301398943Sluigi /* 3014102087Sluigi * MAC addresses, optional. 3015102087Sluigi * If we have this, we skip the part "proto from src to dst" 3016102087Sluigi * and jump straight to the option parsing. 3017102087Sluigi */ 3018102087Sluigi NOT_BLOCK; 3019102087Sluigi NEED1("missing protocol"); 3020102087Sluigi if (!strncmp(*av, "MAC", strlen(*av)) || 3021102087Sluigi !strncmp(*av, "mac", strlen(*av))) { 3022102087Sluigi ac--; av++; /* the "MAC" keyword */ 3023102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 3024102087Sluigi cmd = next_cmd(cmd); 3025102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 3026102087Sluigi NOT_BLOCK; 3027102087Sluigi NEED1("missing mac type"); 3028102087Sluigi if (add_mactype(cmd, ac, av[0])) 3029102087Sluigi cmd = next_cmd(cmd); 3030102087Sluigi ac--; av++; /* any or mac-type */ 3031102087Sluigi goto read_options; 3032102087Sluigi } 3033102098Sluigi#endif 3034102087Sluigi 3035102087Sluigi /* 303698943Sluigi * protocol, mandatory 303798943Sluigi */ 303898943Sluigi OR_START(get_proto); 303998943Sluigi NOT_BLOCK; 304098943Sluigi NEED1("missing protocol"); 3041102087Sluigi if (add_proto(cmd, *av)) { 3042102087Sluigi av++; ac--; 3043102087Sluigi if (F_LEN(cmd) == 0) /* plain IP */ 3044102087Sluigi proto = 0; 3045102087Sluigi else { 3046102087Sluigi proto = cmd->arg1; 3047102087Sluigi prev = cmd; 3048102087Sluigi cmd = next_cmd(cmd); 3049102087Sluigi } 3050102098Sluigi } else if (first_cmd != cmd) { 3051116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 3052102098Sluigi } else 3053102098Sluigi goto read_options; 305498943Sluigi OR_BLOCK(get_proto); 305598943Sluigi 305698943Sluigi /* 3057102087Sluigi * "from", mandatory 305898943Sluigi */ 3059102087Sluigi if (!ac || strncmp(*av, "from", strlen(*av))) 306098943Sluigi errx(EX_USAGE, "missing ``from''"); 306198943Sluigi ac--; av++; 306298943Sluigi 306398943Sluigi /* 306498943Sluigi * source IP, mandatory 306598943Sluigi */ 306698943Sluigi OR_START(source_ip); 306798943Sluigi NOT_BLOCK; /* optional "not" */ 306898943Sluigi NEED1("missing source address"); 3069102087Sluigi if (add_srcip(cmd, *av)) { 3070102087Sluigi ac--; av++; 3071102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 3072102087Sluigi prev = cmd; 3073102087Sluigi cmd = next_cmd(cmd); 3074102087Sluigi } 3075102087Sluigi } 307698943Sluigi OR_BLOCK(source_ip); 307798943Sluigi 307898943Sluigi /* 307998943Sluigi * source ports, optional 308098943Sluigi */ 308198943Sluigi NOT_BLOCK; /* optional "not" */ 3082101641Sluigi if (ac) { 3083102087Sluigi if (!strncmp(*av, "any", strlen(*av)) || 3084102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 3085102087Sluigi ac--; av++; 3086102087Sluigi if (F_LEN(cmd) != 0) 3087102087Sluigi cmd = next_cmd(cmd); 3088101641Sluigi } 308998943Sluigi } 309098943Sluigi 309198943Sluigi /* 3092102087Sluigi * "to", mandatory 309398943Sluigi */ 3094102087Sluigi if (!ac || strncmp(*av, "to", strlen(*av))) 309598943Sluigi errx(EX_USAGE, "missing ``to''"); 309698943Sluigi av++; ac--; 309798943Sluigi 309898943Sluigi /* 309998943Sluigi * destination, mandatory 310098943Sluigi */ 310198943Sluigi OR_START(dest_ip); 310298943Sluigi NOT_BLOCK; /* optional "not" */ 310398943Sluigi NEED1("missing dst address"); 3104102087Sluigi if (add_dstip(cmd, *av)) { 3105102087Sluigi ac--; av++; 3106102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 3107102087Sluigi prev = cmd; 3108102087Sluigi cmd = next_cmd(cmd); 3109102087Sluigi } 3110102087Sluigi } 311198943Sluigi OR_BLOCK(dest_ip); 311298943Sluigi 311398943Sluigi /* 311498943Sluigi * dest. ports, optional 311598943Sluigi */ 311698943Sluigi NOT_BLOCK; /* optional "not" */ 3117101641Sluigi if (ac) { 3118102087Sluigi if (!strncmp(*av, "any", strlen(*av)) || 3119102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 3120102087Sluigi ac--; av++; 3121102087Sluigi if (F_LEN(cmd) != 0) 3122102087Sluigi cmd = next_cmd(cmd); 3123101641Sluigi } 312498943Sluigi } 312598943Sluigi 312698943Sluigiread_options: 3127102087Sluigi if (ac && first_cmd == cmd) { 3128102087Sluigi /* 3129102087Sluigi * nothing specified so far, store in the rule to ease 3130102087Sluigi * printout later. 3131102087Sluigi */ 3132102087Sluigi rule->_pad = 1; 3133102087Sluigi } 313498943Sluigi prev = NULL; 313598943Sluigi while (ac) { 3136101641Sluigi char *s; 3137101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 313898943Sluigi 3139101641Sluigi s = *av; 3140101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 3141101641Sluigi 314298943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 314398943Sluigi if (cmd->len & F_NOT) 314498943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 314598943Sluigi cmd->len = F_NOT; 314698943Sluigi s++; 314798943Sluigi } 314898943Sluigi i = match_token(rule_options, s); 314998943Sluigi ac--; av++; 315098943Sluigi switch(i) { 315198943Sluigi case TOK_NOT: 315298943Sluigi if (cmd->len & F_NOT) 315398943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 315498943Sluigi cmd->len = F_NOT; 315598943Sluigi break; 315698943Sluigi 315798943Sluigi case TOK_OR: 3158101641Sluigi if (open_par == 0 || prev == NULL) 315998943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 316098943Sluigi prev->len |= F_OR; 316198943Sluigi break; 3162101641Sluigi 3163101641Sluigi case TOK_STARTBRACE: 3164101641Sluigi if (open_par) 3165101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 3166101641Sluigi open_par = 1; 3167101641Sluigi break; 3168101641Sluigi 3169101641Sluigi case TOK_ENDBRACE: 3170101641Sluigi if (!open_par) 3171101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 3172101641Sluigi open_par = 0; 3173102087Sluigi prev = NULL; 3174101641Sluigi break; 3175101641Sluigi 317698943Sluigi case TOK_IN: 317798943Sluigi fill_cmd(cmd, O_IN, 0, 0); 317898943Sluigi break; 317998943Sluigi 318098943Sluigi case TOK_OUT: 318198943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 318298943Sluigi fill_cmd(cmd, O_IN, 0, 0); 318398943Sluigi break; 318498943Sluigi 318598943Sluigi case TOK_FRAG: 318698943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 318798943Sluigi break; 318898943Sluigi 318998943Sluigi case TOK_LAYER2: 319098943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 319198943Sluigi break; 319298943Sluigi 319398943Sluigi case TOK_XMIT: 319498943Sluigi case TOK_RECV: 319598943Sluigi case TOK_VIA: 319698943Sluigi NEED1("recv, xmit, via require interface name" 319798943Sluigi " or address"); 319898943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 319998943Sluigi ac--; av++; 320098943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 320198943Sluigi break; 320298943Sluigi if (i == TOK_XMIT) 320398943Sluigi cmd->opcode = O_XMIT; 320498943Sluigi else if (i == TOK_RECV) 320598943Sluigi cmd->opcode = O_RECV; 320698943Sluigi else if (i == TOK_VIA) 320798943Sluigi cmd->opcode = O_VIA; 320898943Sluigi break; 320998943Sluigi 321099475Sluigi case TOK_ICMPTYPES: 321199475Sluigi NEED1("icmptypes requires list of types"); 321299475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 321399475Sluigi av++; ac--; 321499475Sluigi break; 321599475Sluigi 321698943Sluigi case TOK_IPTTL: 321798943Sluigi NEED1("ipttl requires TTL"); 3218116690Sluigi if (strpbrk(*av, "-,")) { 3219116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 3220116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 3221116690Sluigi } else 3222116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 322398943Sluigi ac--; av++; 322498943Sluigi break; 322598943Sluigi 322698943Sluigi case TOK_IPID: 3227116690Sluigi NEED1("ipid requires id"); 3228116690Sluigi if (strpbrk(*av, "-,")) { 3229116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 3230116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 3231116690Sluigi } else 3232116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 323398943Sluigi ac--; av++; 323498943Sluigi break; 323598943Sluigi 323698943Sluigi case TOK_IPLEN: 323798943Sluigi NEED1("iplen requires length"); 3238116690Sluigi if (strpbrk(*av, "-,")) { 3239116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 3240116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 3241116690Sluigi } else 3242116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 324398943Sluigi ac--; av++; 324498943Sluigi break; 324598943Sluigi 324698943Sluigi case TOK_IPVER: 324798943Sluigi NEED1("ipver requires version"); 324898943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 324998943Sluigi ac--; av++; 325098943Sluigi break; 325198943Sluigi 325299475Sluigi case TOK_IPPRECEDENCE: 325399475Sluigi NEED1("ipprecedence requires value"); 325499475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 325599475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 325699475Sluigi ac--; av++; 325799475Sluigi break; 325899475Sluigi 325998943Sluigi case TOK_IPOPTS: 326098943Sluigi NEED1("missing argument for ipoptions"); 3261101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 326298943Sluigi ac--; av++; 326398943Sluigi break; 326498943Sluigi 326599475Sluigi case TOK_IPTOS: 326699475Sluigi NEED1("missing argument for iptos"); 3267101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 326899475Sluigi ac--; av++; 326999475Sluigi break; 327099475Sluigi 327198943Sluigi case TOK_UID: 327298943Sluigi NEED1("uid requires argument"); 327398943Sluigi { 327498943Sluigi char *end; 327598943Sluigi uid_t uid; 327698943Sluigi struct passwd *pwd; 327798943Sluigi 327898943Sluigi cmd->opcode = O_UID; 327998943Sluigi uid = strtoul(*av, &end, 0); 328098943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 328198943Sluigi if (pwd == NULL) 328298943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 3283106504Smaxim cmd32->d[0] = pwd->pw_uid; 328498943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 328598943Sluigi ac--; av++; 328698943Sluigi } 328798943Sluigi break; 328898943Sluigi 328998943Sluigi case TOK_GID: 329098943Sluigi NEED1("gid requires argument"); 329198943Sluigi { 329298943Sluigi char *end; 329398943Sluigi gid_t gid; 329498943Sluigi struct group *grp; 329598943Sluigi 329698943Sluigi cmd->opcode = O_GID; 329798943Sluigi gid = strtoul(*av, &end, 0); 329898943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 329998943Sluigi if (grp == NULL) 330098943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 3301106504Smaxim cmd32->d[0] = grp->gr_gid; 330298943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 330398943Sluigi ac--; av++; 330498943Sluigi } 330598943Sluigi break; 330698943Sluigi 3307133600Scsjp case TOK_JAIL: 3308133600Scsjp NEED1("jail requires argument"); 3309133600Scsjp { 3310133600Scsjp char *end; 3311133600Scsjp int jid; 3312133600Scsjp 3313133600Scsjp cmd->opcode = O_JAIL; 3314133600Scsjp jid = (int)strtol(*av, &end, 0); 3315133600Scsjp if (jid < 0 || *end != '\0') 3316133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 3317133600Scsjp cmd32->d[0] = (unsigned int)jid; 3318133600Scsjp cmd->len = F_INSN_SIZE(ipfw_insn_u32); 3319133600Scsjp ac--; av++; 3320133600Scsjp } 3321133600Scsjp break; 3322133600Scsjp 332398943Sluigi case TOK_ESTAB: 332498943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 332598943Sluigi break; 332698943Sluigi 332798943Sluigi case TOK_SETUP: 332898943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 332998943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 333098943Sluigi break; 333198943Sluigi 333298943Sluigi case TOK_TCPOPTS: 333398943Sluigi NEED1("missing argument for tcpoptions"); 333498943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 333598943Sluigi ac--; av++; 333698943Sluigi break; 333798943Sluigi 333898943Sluigi case TOK_TCPSEQ: 333998943Sluigi case TOK_TCPACK: 334098943Sluigi NEED1("tcpseq/tcpack requires argument"); 334198943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 334298943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 334398943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 334498943Sluigi ac--; av++; 334598943Sluigi break; 334698943Sluigi 334798943Sluigi case TOK_TCPWIN: 334898943Sluigi NEED1("tcpwin requires length"); 334998943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 335098943Sluigi htons(strtoul(*av, NULL, 0))); 335198943Sluigi ac--; av++; 335298943Sluigi break; 335398943Sluigi 335498943Sluigi case TOK_TCPFLAGS: 335598943Sluigi NEED1("missing argument for tcpflags"); 335698943Sluigi cmd->opcode = O_TCPFLAGS; 335798943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 335898943Sluigi ac--; av++; 335998943Sluigi break; 336098943Sluigi 336198943Sluigi case TOK_KEEPSTATE: 3362101641Sluigi if (open_par) 3363101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 3364101641Sluigi "of an or block"); 336599909Sluigi if (have_state) 3366101116Sluigi errx(EX_USAGE, "only one of keep-state " 336799909Sluigi "and limit is allowed"); 3368101116Sluigi have_state = cmd; 336998943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 337098943Sluigi break; 337198943Sluigi 337298943Sluigi case TOK_LIMIT: 3373101641Sluigi if (open_par) 3374101641Sluigi errx(EX_USAGE, "limit cannot be part " 3375101641Sluigi "of an or block"); 337699909Sluigi if (have_state) 3377101116Sluigi errx(EX_USAGE, "only one of keep-state " 337899909Sluigi "and limit is allowed"); 3379101641Sluigi NEED1("limit needs mask and # of connections"); 3380101116Sluigi have_state = cmd; 338198943Sluigi { 338298943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 338398943Sluigi 338498943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 338598943Sluigi cmd->opcode = O_LIMIT; 338698943Sluigi c->limit_mask = 0; 338798943Sluigi c->conn_limit = 0; 338898943Sluigi for (; ac >1 ;) { 338998943Sluigi int val; 339098943Sluigi 339198943Sluigi val = match_token(limit_masks, *av); 339298943Sluigi if (val <= 0) 339398943Sluigi break; 339498943Sluigi c->limit_mask |= val; 339598943Sluigi ac--; av++; 339698943Sluigi } 339798943Sluigi c->conn_limit = atoi(*av); 339898943Sluigi if (c->conn_limit == 0) 339998943Sluigi errx(EX_USAGE, "limit: limit must be >0"); 340098943Sluigi if (c->limit_mask == 0) 340198943Sluigi errx(EX_USAGE, "missing limit mask"); 340298943Sluigi ac--; av++; 340398943Sluigi } 340498943Sluigi break; 340598943Sluigi 3406102087Sluigi case TOK_PROTO: 3407102087Sluigi NEED1("missing protocol"); 3408102087Sluigi if (add_proto(cmd, *av)) { 3409102087Sluigi proto = cmd->arg1; 3410102087Sluigi ac--; av++; 3411102098Sluigi } else 3412116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 3413116438Smaxim *av); 3414102087Sluigi break; 3415106505Smaxim 3416102087Sluigi case TOK_SRCIP: 3417102087Sluigi NEED1("missing source IP"); 3418102087Sluigi if (add_srcip(cmd, *av)) { 3419102087Sluigi ac--; av++; 3420102087Sluigi } 3421102087Sluigi break; 3422102087Sluigi 3423102087Sluigi case TOK_DSTIP: 3424102087Sluigi NEED1("missing destination IP"); 3425102087Sluigi if (add_dstip(cmd, *av)) { 3426102087Sluigi ac--; av++; 3427102087Sluigi } 3428102087Sluigi break; 3429102087Sluigi 3430102087Sluigi case TOK_SRCPORT: 3431102087Sluigi NEED1("missing source port"); 3432102087Sluigi if (!strncmp(*av, "any", strlen(*av)) || 3433102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 3434102087Sluigi ac--; av++; 3435102087Sluigi } else 3436102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 3437102087Sluigi break; 3438102087Sluigi 3439102087Sluigi case TOK_DSTPORT: 3440102087Sluigi NEED1("missing destination port"); 3441102087Sluigi if (!strncmp(*av, "any", strlen(*av)) || 3442102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 3443102087Sluigi ac--; av++; 3444102087Sluigi } else 3445102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 3446102087Sluigi *av); 3447102087Sluigi break; 3448102087Sluigi 3449102087Sluigi case TOK_MAC: 3450102087Sluigi if (add_mac(cmd, ac, av)) { 3451102087Sluigi ac -= 2; av += 2; 3452102087Sluigi } 3453102087Sluigi break; 3454102087Sluigi 3455102087Sluigi case TOK_MACTYPE: 3456102087Sluigi NEED1("missing mac type"); 3457102087Sluigi if (!add_mactype(cmd, ac, *av)) 3458116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 3459102087Sluigi ac--; av++; 3460102087Sluigi break; 3461102087Sluigi 3462112250Scjc case TOK_VERREVPATH: 3463112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 3464112250Scjc break; 3465116919Sluigi 3466128575Sandre case TOK_VERSRCREACH: 3467128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 3468128575Sandre break; 3469128575Sandre 3470133387Sandre case TOK_ANTISPOOF: 3471133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 3472133387Sandre break; 3473133387Sandre 3474117241Sluigi case TOK_IPSEC: 3475117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 3476117241Sluigi break; 3477117241Sluigi 3478117469Sluigi case TOK_COMMENT: 3479117469Sluigi fill_comment(cmd, ac, av); 3480117469Sluigi av += ac; 3481117469Sluigi ac = 0; 3482117469Sluigi break; 3483117469Sluigi 348498943Sluigi default: 348598943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 348698943Sluigi } 348798943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 348898943Sluigi prev = cmd; 348998943Sluigi cmd = next_cmd(cmd); 349098943Sluigi } 349198943Sluigi } 349298943Sluigi 349398943Sluigidone: 349498943Sluigi /* 349598943Sluigi * Now copy stuff into the rule. 349698943Sluigi * If we have a keep-state option, the first instruction 349798943Sluigi * must be a PROBE_STATE (which is generated here). 349898943Sluigi * If we have a LOG option, it was stored as the first command, 349998943Sluigi * and now must be moved to the top of the action part. 350098943Sluigi */ 350198943Sluigi dst = (ipfw_insn *)rule->cmd; 350298943Sluigi 350398943Sluigi /* 3504107289Sluigi * First thing to write into the command stream is the match probability. 3505107289Sluigi */ 3506107289Sluigi if (match_prob != 1) { /* 1 means always match */ 3507107289Sluigi dst->opcode = O_PROB; 3508107289Sluigi dst->len = 2; 3509107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 3510107289Sluigi dst += dst->len; 3511107289Sluigi } 3512107289Sluigi 3513107289Sluigi /* 351498943Sluigi * generate O_PROBE_STATE if necessary 351598943Sluigi */ 3516101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 351798943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 351898943Sluigi dst = next_cmd(dst); 351998943Sluigi } 352098943Sluigi /* 3521101116Sluigi * copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT 352298943Sluigi */ 352398943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 352498943Sluigi i = F_LEN(src); 352598943Sluigi 3526101116Sluigi switch (src->opcode) { 3527101116Sluigi case O_LOG: 3528101116Sluigi case O_KEEP_STATE: 3529101116Sluigi case O_LIMIT: 3530101116Sluigi break; 3531101116Sluigi default: 3532117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 353398943Sluigi dst += i; 353498943Sluigi } 353598943Sluigi } 353698943Sluigi 353798943Sluigi /* 3538101116Sluigi * put back the have_state command as last opcode 3539101116Sluigi */ 3540101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 3541101116Sluigi i = F_LEN(have_state); 3542117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 3543101116Sluigi dst += i; 3544101116Sluigi } 3545101116Sluigi /* 354698943Sluigi * start action section 354798943Sluigi */ 354898943Sluigi rule->act_ofs = dst - rule->cmd; 354998943Sluigi 355098943Sluigi /* 355198943Sluigi * put back O_LOG if necessary 355298943Sluigi */ 355398943Sluigi src = (ipfw_insn *)cmdbuf; 3554117577Sluigi if (src->opcode == O_LOG) { 355598943Sluigi i = F_LEN(src); 3556117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 355798943Sluigi dst += i; 355898943Sluigi } 355998943Sluigi /* 356098943Sluigi * copy all other actions 356198943Sluigi */ 356298943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 356398943Sluigi i = F_LEN(src); 3564117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 356598943Sluigi dst += i; 356698943Sluigi } 356798943Sluigi 3568117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 3569117469Sluigi i = (char *)dst - (char *)rule; 3570119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 357198943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 357298943Sluigi if (!do_quiet) 3573117469Sluigi show_ipfw(rule, 0, 0); 357498943Sluigi} 357598943Sluigi 357698943Sluigistatic void 3577117328Sluigizero(int ac, char *av[], int optname /* IP_FW_ZERO or IP_FW_RESETLOG */) 357898943Sluigi{ 357998943Sluigi int rulenum; 358098943Sluigi int failed = EX_OK; 3581117469Sluigi char const *name = optname == IP_FW_ZERO ? "ZERO" : "RESETLOG"; 358298943Sluigi 358398943Sluigi av++; ac--; 358498943Sluigi 358598943Sluigi if (!ac) { 358698943Sluigi /* clear all entries */ 3587117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 3588117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 358998943Sluigi if (!do_quiet) 3590117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 3591117328Sluigi "Accounting cleared":"Logging counts reset"); 359298943Sluigi 359398943Sluigi return; 359498943Sluigi } 359598943Sluigi 359698943Sluigi while (ac) { 359798943Sluigi /* Rule number */ 359898943Sluigi if (isdigit(**av)) { 359998943Sluigi rulenum = atoi(*av); 360098943Sluigi av++; 360198943Sluigi ac--; 3602117328Sluigi if (do_cmd(optname, &rulenum, sizeof rulenum)) { 3603117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 3604117328Sluigi rulenum, name); 360598943Sluigi failed = EX_UNAVAILABLE; 360698943Sluigi } else if (!do_quiet) 3607117328Sluigi printf("Entry %d %s.\n", rulenum, 3608117328Sluigi optname == IP_FW_ZERO ? 3609117328Sluigi "cleared" : "logging count reset"); 361098943Sluigi } else { 361198943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 361298943Sluigi } 361398943Sluigi } 361498943Sluigi if (failed != EX_OK) 361598943Sluigi exit(failed); 361698943Sluigi} 361798943Sluigi 361898943Sluigistatic void 3619117544Sluigiflush(int force) 362098943Sluigi{ 362198943Sluigi int cmd = do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 362298943Sluigi 3623117544Sluigi if (!force && !do_quiet) { /* need to ask user */ 362498943Sluigi int c; 362598943Sluigi 362698943Sluigi printf("Are you sure? [yn] "); 362798943Sluigi fflush(stdout); 362898943Sluigi do { 362998943Sluigi c = toupper(getc(stdin)); 363098943Sluigi while (c != '\n' && getc(stdin) != '\n') 363198943Sluigi if (feof(stdin)) 363298943Sluigi return; /* and do not flush */ 363398943Sluigi } while (c != 'Y' && c != 'N'); 363498943Sluigi printf("\n"); 363598943Sluigi if (c == 'N') /* user said no */ 363698943Sluigi return; 363798943Sluigi } 3638117328Sluigi if (do_cmd(cmd, NULL, 0) < 0) 363998943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 364098943Sluigi do_pipe ? "DUMMYNET" : "FW"); 364198943Sluigi if (!do_quiet) 364298943Sluigi printf("Flushed all %s.\n", do_pipe ? "pipes" : "rules"); 364398943Sluigi} 364498943Sluigi 3645117469Sluigi/* 3646117544Sluigi * Free a the (locally allocated) copy of command line arguments. 3647117469Sluigi */ 3648117544Sluigistatic void 3649117544Sluigifree_args(int ac, char **av) 3650117544Sluigi{ 3651117544Sluigi int i; 3652117544Sluigi 3653117544Sluigi for (i=0; i < ac; i++) 3654117544Sluigi free(av[i]); 3655117544Sluigi free(av); 3656117544Sluigi} 3657117544Sluigi 3658117544Sluigi/* 3659130281Sru * This one handles all table-related commands 3660130281Sru * ipfw table N add addr[/masklen] [value] 3661130281Sru * ipfw table N delete addr[/masklen] 3662130281Sru * ipfw table N flush 3663130281Sru * ipfw table N list 3664130281Sru */ 3665130281Srustatic void 3666130281Srutable_handler(int ac, char *av[]) 3667130281Sru{ 3668130281Sru ipfw_table_entry ent; 3669130281Sru ipfw_table *tbl; 3670130281Sru int do_add; 3671130281Sru char *p; 3672130281Sru socklen_t l; 3673130281Sru uint32_t a; 3674130281Sru 3675130281Sru ac--; av++; 3676130281Sru if (ac && isdigit(**av)) { 3677130281Sru ent.tbl = atoi(*av); 3678130281Sru ac--; av++; 3679130281Sru } else 3680130281Sru errx(EX_USAGE, "table number required"); 3681130281Sru NEED1("table needs command"); 3682130281Sru if (strncmp(*av, "add", strlen(*av)) == 0 || 3683130281Sru strncmp(*av, "delete", strlen(*av)) == 0) { 3684130281Sru do_add = **av == 'a'; 3685130281Sru ac--; av++; 3686130281Sru if (!ac) 3687130281Sru errx(EX_USAGE, "IP address required"); 3688130281Sru p = strchr(*av, '/'); 3689130281Sru if (p) { 3690130281Sru *p++ = '\0'; 3691130281Sru ent.masklen = atoi(p); 3692130281Sru if (ent.masklen > 32) 3693130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 3694130281Sru } else 3695130281Sru ent.masklen = 32; 3696130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 3697130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 3698130281Sru ac--; av++; 3699130281Sru if (do_add && ac) 3700130281Sru ent.value = strtoul(*av, NULL, 0); 3701130281Sru else 3702130281Sru ent.value = 0; 3703130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 3704130281Sru &ent, sizeof(ent)) < 0) 3705130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 3706130281Sru do_add ? "ADD" : "DEL"); 3707130281Sru } else if (strncmp(*av, "flush", strlen(*av)) == 0) { 3708130281Sru if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, sizeof(ent.tbl)) < 0) 3709130281Sru err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 3710130281Sru } else if (strncmp(*av, "list", strlen(*av)) == 0) { 3711130281Sru a = ent.tbl; 3712130281Sru l = sizeof(a); 3713130281Sru if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 3714130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 3715130281Sru l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 3716130281Sru tbl = malloc(l); 3717130281Sru if (tbl == NULL) 3718130281Sru err(EX_OSERR, "malloc"); 3719130281Sru tbl->tbl = ent.tbl; 3720130281Sru if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 3721130281Sru err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 3722130281Sru for (a = 0; a < tbl->cnt; a++) { 3723130281Sru printf("%s/%u %u\n", 3724130281Sru inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 3725130281Sru tbl->ent[a].masklen, tbl->ent[a].value); 3726130281Sru } 3727130281Sru } else 3728130281Sru errx(EX_USAGE, "invalid table command %s", *av); 3729130281Sru} 3730130281Sru 3731130281Sru/* 3732117544Sluigi * Called with the arguments (excluding program name). 3733117544Sluigi * Returns 0 if successful, 1 if empty command, errx() in case of errors. 3734117544Sluigi */ 373598943Sluigistatic int 3736117328Sluigiipfw_main(int oldac, char **oldav) 373798943Sluigi{ 3738117469Sluigi int ch, ac, save_ac; 3739117469Sluigi char **av, **save_av; 3740117469Sluigi int do_acct = 0; /* Show packet/byte count */ 3741117469Sluigi 3742117469Sluigi#define WHITESP " \t\f\v\n\r" 3743117544Sluigi if (oldac == 0) 3744117544Sluigi return 1; 3745117544Sluigi else if (oldac == 1) { 3746117328Sluigi /* 3747117328Sluigi * If we are called with a single string, try to split it into 3748117328Sluigi * arguments for subsequent parsing. 3749117328Sluigi * But first, remove spaces after a ',', by copying the string 3750117328Sluigi * in-place. 3751117328Sluigi */ 3752117469Sluigi char *arg = oldav[0]; /* The string... */ 3753117328Sluigi int l = strlen(arg); 3754117328Sluigi int copy = 0; /* 1 if we need to copy, 0 otherwise */ 3755117328Sluigi int i, j; 3756117469Sluigi for (i = j = 0; i < l; i++) { 3757117469Sluigi if (arg[i] == '#') /* comment marker */ 3758117469Sluigi break; 3759117328Sluigi if (copy) { 3760117328Sluigi arg[j++] = arg[i]; 3761117469Sluigi copy = !index("," WHITESP, arg[i]); 3762117328Sluigi } else { 3763117469Sluigi copy = !index(WHITESP, arg[i]); 3764117328Sluigi if (copy) 3765117328Sluigi arg[j++] = arg[i]; 3766117328Sluigi } 3767117469Sluigi } 3768117328Sluigi if (!copy && j > 0) /* last char was a 'blank', remove it */ 3769117328Sluigi j--; 3770117328Sluigi l = j; /* the new argument length */ 3771117328Sluigi arg[j++] = '\0'; 3772117469Sluigi if (l == 0) /* empty string! */ 3773117544Sluigi return 1; 3774117328Sluigi 3775117328Sluigi /* 3776117328Sluigi * First, count number of arguments. Because of the previous 3777117469Sluigi * processing, this is just the number of blanks plus 1. 3778117328Sluigi */ 3779117469Sluigi for (i = 0, ac = 1; i < l; i++) 3780117469Sluigi if (index(WHITESP, arg[i]) != NULL) 3781117328Sluigi ac++; 3782117328Sluigi 3783117328Sluigi av = calloc(ac, sizeof(char *)); 3784117328Sluigi 3785117328Sluigi /* 3786117328Sluigi * Second, copy arguments from cmd[] to av[]. For each one, 3787117328Sluigi * j is the initial character, i is the one past the end. 3788117328Sluigi */ 3789117469Sluigi for (ac = 0, i = j = 0; i < l; i++) 3790117469Sluigi if (index(WHITESP, arg[i]) != NULL || i == l-1) { 3791117328Sluigi if (i == l-1) 3792117328Sluigi i++; 3793117328Sluigi av[ac] = calloc(i-j+1, 1); 3794117328Sluigi bcopy(arg+j, av[ac], i-j); 3795117328Sluigi ac++; 3796117328Sluigi j = i + 1; 3797117328Sluigi } 3798117328Sluigi } else { 3799117328Sluigi /* 3800117328Sluigi * If an argument ends with ',' join with the next one. 3801117328Sluigi */ 3802117328Sluigi int first, i, l; 3803117328Sluigi 3804117328Sluigi av = calloc(oldac, sizeof(char *)); 3805117328Sluigi for (first = i = ac = 0, l = 0; i < oldac; i++) { 3806117328Sluigi char *arg = oldav[i]; 3807117328Sluigi int k = strlen(arg); 3808117328Sluigi 3809117328Sluigi l += k; 3810117328Sluigi if (arg[k-1] != ',' || i == oldac-1) { 3811117328Sluigi /* Time to copy. */ 3812117328Sluigi av[ac] = calloc(l+1, 1); 3813117328Sluigi for (l=0; first <= i; first++) { 3814117328Sluigi strcat(av[ac]+l, oldav[first]); 3815117328Sluigi l += strlen(oldav[first]); 3816117328Sluigi } 3817117328Sluigi ac++; 3818117328Sluigi l = 0; 3819117328Sluigi first = i+1; 3820117328Sluigi } 3821117328Sluigi } 3822117328Sluigi } 3823117328Sluigi 382498943Sluigi /* Set the force flag for non-interactive processes */ 3825123804Smaxim if (!do_force) 3826123804Smaxim do_force = !isatty(STDIN_FILENO); 382798943Sluigi 3828117469Sluigi /* Save arguments for final freeing of memory. */ 3829117469Sluigi save_ac = ac; 3830117469Sluigi save_av = av; 3831117469Sluigi 3832117469Sluigi optind = optreset = 0; 3833123495Sluigi while ((ch = getopt(ac, av, "abcdefhnNqs:STtv")) != -1) 383498943Sluigi switch (ch) { 383598943Sluigi case 'a': 383698943Sluigi do_acct = 1; 383798943Sluigi break; 3838117328Sluigi 3839123495Sluigi case 'b': 3840123495Sluigi comment_only = 1; 3841123495Sluigi do_compact = 1; 3842123495Sluigi break; 3843123495Sluigi 3844102098Sluigi case 'c': 3845102098Sluigi do_compact = 1; 3846102098Sluigi break; 3847117328Sluigi 384898943Sluigi case 'd': 384998943Sluigi do_dynamic = 1; 385098943Sluigi break; 3851117328Sluigi 385298943Sluigi case 'e': 385398943Sluigi do_expired = 1; 385498943Sluigi break; 3855117328Sluigi 385698943Sluigi case 'f': 385798943Sluigi do_force = 1; 385898943Sluigi break; 3859117328Sluigi 3860117328Sluigi case 'h': /* help */ 3861117544Sluigi free_args(save_ac, save_av); 3862117328Sluigi help(); 3863117328Sluigi break; /* NOTREACHED */ 3864117328Sluigi 3865117328Sluigi case 'n': 3866117328Sluigi test_only = 1; 3867117328Sluigi break; 3868117328Sluigi 386998943Sluigi case 'N': 387098943Sluigi do_resolv = 1; 387198943Sluigi break; 3872117328Sluigi 387398943Sluigi case 'q': 387498943Sluigi do_quiet = 1; 387598943Sluigi break; 3876117328Sluigi 3877117328Sluigi case 's': /* sort */ 3878117328Sluigi do_sort = atoi(optarg); 3879117328Sluigi break; 3880117328Sluigi 3881101628Sluigi case 'S': 3882101628Sluigi show_sets = 1; 3883101628Sluigi break; 3884117328Sluigi 388598943Sluigi case 't': 388698943Sluigi do_time = 1; 388798943Sluigi break; 3888117328Sluigi 3889117472Sluigi case 'T': 3890117472Sluigi do_time = 2; /* numeric timestamp */ 3891117472Sluigi break; 3892117472Sluigi 389398943Sluigi case 'v': /* verbose */ 3894117328Sluigi verbose = 1; 389598943Sluigi break; 3896117328Sluigi 389798943Sluigi default: 3898117544Sluigi free_args(save_ac, save_av); 3899117544Sluigi return 1; 390098943Sluigi } 390198943Sluigi 390298943Sluigi ac -= optind; 390398943Sluigi av += optind; 390498943Sluigi NEED1("bad arguments, for usage summary ``ipfw''"); 390598943Sluigi 390698943Sluigi /* 3907117544Sluigi * An undocumented behaviour of ipfw1 was to allow rule numbers first, 3908117544Sluigi * e.g. "100 add allow ..." instead of "add 100 allow ...". 3909117544Sluigi * In case, swap first and second argument to get the normal form. 3910117544Sluigi */ 3911117544Sluigi if (ac > 1 && isdigit(*av[0])) { 3912117544Sluigi char *p = av[0]; 3913117544Sluigi 3914117544Sluigi av[0] = av[1]; 3915117544Sluigi av[1] = p; 3916117544Sluigi } 3917117544Sluigi 3918117544Sluigi /* 391998943Sluigi * optional: pipe or queue 392098943Sluigi */ 3921117821Smaxim do_pipe = 0; 3922117544Sluigi if (!strncmp(*av, "pipe", strlen(*av))) 392398943Sluigi do_pipe = 1; 3924117544Sluigi else if (!strncmp(*av, "queue", strlen(*av))) 392598943Sluigi do_pipe = 2; 3926117544Sluigi if (do_pipe) { 392798943Sluigi ac--; 392898943Sluigi av++; 392998943Sluigi } 393098943Sluigi NEED1("missing command"); 393198943Sluigi 393298943Sluigi /* 3933117328Sluigi * For pipes and queues we normally say 'pipe NN config' 393498943Sluigi * but the code is easier to parse as 'pipe config NN' 393598943Sluigi * so we swap the two arguments. 393698943Sluigi */ 3937117469Sluigi if (do_pipe > 0 && ac > 1 && isdigit(*av[0])) { 393898943Sluigi char *p = av[0]; 3939117544Sluigi 394098943Sluigi av[0] = av[1]; 394198943Sluigi av[1] = p; 394298943Sluigi } 3943117328Sluigi 394498943Sluigi if (!strncmp(*av, "add", strlen(*av))) 394598943Sluigi add(ac, av); 394698943Sluigi else if (do_pipe && !strncmp(*av, "config", strlen(*av))) 394798943Sluigi config_pipe(ac, av); 3948101978Sluigi else if (!strncmp(*av, "delete", strlen(*av))) 394998943Sluigi delete(ac, av); 395098943Sluigi else if (!strncmp(*av, "flush", strlen(*av))) 3951117544Sluigi flush(do_force); 395298943Sluigi else if (!strncmp(*av, "zero", strlen(*av))) 3953117328Sluigi zero(ac, av, IP_FW_ZERO); 395498943Sluigi else if (!strncmp(*av, "resetlog", strlen(*av))) 3955117328Sluigi zero(ac, av, IP_FW_RESETLOG); 395698943Sluigi else if (!strncmp(*av, "print", strlen(*av)) || 395798943Sluigi !strncmp(*av, "list", strlen(*av))) 3958117469Sluigi list(ac, av, do_acct); 3959101978Sluigi else if (!strncmp(*av, "set", strlen(*av))) 3960101978Sluigi sets_handler(ac, av); 3961130281Sru else if (!strncmp(*av, "table", strlen(*av))) 3962130281Sru table_handler(ac, av); 3963109126Sdillon else if (!strncmp(*av, "enable", strlen(*av))) 3964109126Sdillon sysctl_handler(ac, av, 1); 3965109126Sdillon else if (!strncmp(*av, "disable", strlen(*av))) 3966109126Sdillon sysctl_handler(ac, av, 0); 3967117469Sluigi else if (!strncmp(*av, "show", strlen(*av))) 3968117469Sluigi list(ac, av, 1 /* show counters */); 3969117469Sluigi else 397098943Sluigi errx(EX_USAGE, "bad command `%s'", *av); 3971117469Sluigi 3972117469Sluigi /* Free memory allocated in the argument parsing. */ 3973117544Sluigi free_args(save_ac, save_av); 397498943Sluigi return 0; 397598943Sluigi} 397698943Sluigi 397798943Sluigi 397898943Sluigistatic void 3979106505Smaximipfw_readfile(int ac, char *av[]) 398098943Sluigi{ 398198943Sluigi#define MAX_ARGS 32 398298943Sluigi char buf[BUFSIZ]; 3983117469Sluigi char *cmd = NULL, *filename = av[ac-1]; 3984117469Sluigi int c, lineno=0; 398598943Sluigi FILE *f = NULL; 398698943Sluigi pid_t preproc = 0; 398798943Sluigi 3988117469Sluigi filename = av[ac-1]; 3989117469Sluigi 3990123804Smaxim while ((c = getopt(ac, av, "cfNnp:qS")) != -1) { 399198943Sluigi switch(c) { 3992117469Sluigi case 'c': 3993117469Sluigi do_compact = 1; 3994117469Sluigi break; 3995117469Sluigi 3996123804Smaxim case 'f': 3997123804Smaxim do_force = 1; 3998123804Smaxim break; 3999123804Smaxim 4000117469Sluigi case 'N': 4001117469Sluigi do_resolv = 1; 4002117469Sluigi break; 4003117469Sluigi 4004117328Sluigi case 'n': 4005117328Sluigi test_only = 1; 4006117328Sluigi break; 4007117328Sluigi 400898943Sluigi case 'p': 400998943Sluigi cmd = optarg; 4010117469Sluigi /* 4011117469Sluigi * Skip previous args and delete last one, so we 4012117469Sluigi * pass all but the last argument to the preprocessor 4013117469Sluigi * via av[optind-1] 4014117469Sluigi */ 4015117469Sluigi av += optind - 1; 4016117469Sluigi ac -= optind - 1; 4017117469Sluigi av[ac-1] = NULL; 4018117469Sluigi fprintf(stderr, "command is %s\n", av[0]); 401998943Sluigi break; 402098943Sluigi 402198943Sluigi case 'q': 4022117469Sluigi do_quiet = 1; 402398943Sluigi break; 402498943Sluigi 4025117469Sluigi case 'S': 4026117469Sluigi show_sets = 1; 4027117469Sluigi break; 4028117469Sluigi 402998943Sluigi default: 403098943Sluigi errx(EX_USAGE, "bad arguments, for usage" 403198943Sluigi " summary ``ipfw''"); 403298943Sluigi } 403398943Sluigi 4034117469Sluigi if (cmd != NULL) 4035108231Skbyanc break; 4036108231Skbyanc } 4037108231Skbyanc 4038117469Sluigi if (cmd == NULL && ac != optind + 1) { 4039117469Sluigi fprintf(stderr, "ac %d, optind %d\n", ac, optind); 4040117469Sluigi errx(EX_USAGE, "extraneous filename arguments"); 4041108231Skbyanc } 4042108231Skbyanc 4043117469Sluigi if ((f = fopen(filename, "r")) == NULL) 4044117469Sluigi err(EX_UNAVAILABLE, "fopen: %s", filename); 404598943Sluigi 4046117469Sluigi if (cmd != NULL) { /* pipe through preprocessor */ 404798943Sluigi int pipedes[2]; 404898943Sluigi 404998943Sluigi if (pipe(pipedes) == -1) 405098943Sluigi err(EX_OSERR, "cannot create pipe"); 405198943Sluigi 4052117469Sluigi preproc = fork(); 4053117469Sluigi if (preproc == -1) 405498943Sluigi err(EX_OSERR, "cannot fork"); 405598943Sluigi 4056117577Sluigi if (preproc == 0) { 4057117469Sluigi /* 4058117469Sluigi * Child, will run the preprocessor with the 4059117469Sluigi * file on stdin and the pipe on stdout. 4060117469Sluigi */ 406198943Sluigi if (dup2(fileno(f), 0) == -1 406298943Sluigi || dup2(pipedes[1], 1) == -1) 406398943Sluigi err(EX_OSERR, "dup2()"); 406498943Sluigi fclose(f); 406598943Sluigi close(pipedes[1]); 406698943Sluigi close(pipedes[0]); 4067117469Sluigi execvp(cmd, av); 406898943Sluigi err(EX_OSERR, "execvp(%s) failed", cmd); 4069117469Sluigi } else { /* parent, will reopen f as the pipe */ 407098943Sluigi fclose(f); 407198943Sluigi close(pipedes[1]); 407298943Sluigi if ((f = fdopen(pipedes[0], "r")) == NULL) { 407398943Sluigi int savederrno = errno; 407498943Sluigi 407598943Sluigi (void)kill(preproc, SIGTERM); 407698943Sluigi errno = savederrno; 407798943Sluigi err(EX_OSERR, "fdopen()"); 407898943Sluigi } 407998943Sluigi } 408098943Sluigi } 408198943Sluigi 4082117469Sluigi while (fgets(buf, BUFSIZ, f)) { /* read commands */ 4083117469Sluigi char linename[10]; 4084117469Sluigi char *args[1]; 4085117469Sluigi 408698943Sluigi lineno++; 408798943Sluigi sprintf(linename, "Line %d", lineno); 4088117328Sluigi setprogname(linename); /* XXX */ 4089117469Sluigi args[0] = buf; 4090117469Sluigi ipfw_main(1, args); 409198943Sluigi } 409298943Sluigi fclose(f); 4093117469Sluigi if (cmd != NULL) { 4094117469Sluigi int status; 4095117469Sluigi 409698943Sluigi if (waitpid(preproc, &status, 0) == -1) 409798943Sluigi errx(EX_OSERR, "waitpid()"); 409898943Sluigi if (WIFEXITED(status) && WEXITSTATUS(status) != EX_OK) 409998943Sluigi errx(EX_UNAVAILABLE, 410098943Sluigi "preprocessor exited with status %d", 410198943Sluigi WEXITSTATUS(status)); 410298943Sluigi else if (WIFSIGNALED(status)) 410398943Sluigi errx(EX_UNAVAILABLE, 410498943Sluigi "preprocessor exited with signal %d", 410598943Sluigi WTERMSIG(status)); 410698943Sluigi } 410798943Sluigi} 410898943Sluigi 410998943Sluigiint 411098943Sluigimain(int ac, char *av[]) 411198943Sluigi{ 411298943Sluigi /* 411398943Sluigi * If the last argument is an absolute pathname, interpret it 411498943Sluigi * as a file to be preprocessed. 411598943Sluigi */ 411698943Sluigi 411798943Sluigi if (ac > 1 && av[ac - 1][0] == '/' && access(av[ac - 1], R_OK) == 0) 411898943Sluigi ipfw_readfile(ac, av); 4119117544Sluigi else { 4120117544Sluigi if (ipfw_main(ac-1, av+1)) 4121117544Sluigi show_usage(); 4122117544Sluigi } 412398943Sluigi return EX_OK; 412498943Sluigi} 4125