ipfw2.c revision 187767
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 187767 2009-01-27 10:18:55Z luigi $ 2198943Sluigi */ 2298943Sluigi 23187604Sluigi#include <sys/types.h> 2498943Sluigi#include <sys/socket.h> 2598943Sluigi#include <sys/sockio.h> 2698943Sluigi#include <sys/sysctl.h> 2798943Sluigi 28187767Sluigi#include "ipfw2.h" 29187767Sluigi 3098943Sluigi#include <ctype.h> 3198943Sluigi#include <err.h> 3298943Sluigi#include <errno.h> 3398943Sluigi#include <grp.h> 3498943Sluigi#include <netdb.h> 3598943Sluigi#include <pwd.h> 3698943Sluigi#include <stdio.h> 3798943Sluigi#include <stdlib.h> 3898943Sluigi#include <string.h> 3998943Sluigi#include <sysexits.h> 40187604Sluigi#include <timeconv.h> /* _long_to_time */ 41136071Sgreen#include <unistd.h> 42136071Sgreen#include <fcntl.h> 4398943Sluigi 44175659Srwatson#define IPFW_INTERNAL /* Access to protected structures in ip_fw.h. */ 45175659Srwatson 46169424Smaxim#include <net/ethernet.h> 4798943Sluigi#include <net/if.h> 48165648Spiso#include <net/if_dl.h> 49136071Sgreen#include <net/pfvar.h> 50145246Sbrooks#include <net/route.h> /* def. of struct route */ 5198943Sluigi#include <netinet/in.h> 5298943Sluigi#include <netinet/in_systm.h> 5398943Sluigi#include <netinet/ip.h> 5498943Sluigi#include <netinet/ip_icmp.h> 55145246Sbrooks#include <netinet/icmp6.h> 5698943Sluigi#include <netinet/ip_fw.h> 5798943Sluigi#include <netinet/ip_dummynet.h> 5898943Sluigi#include <netinet/tcp.h> 5998943Sluigi#include <arpa/inet.h> 60165648Spiso#include <alias.h> 6198943Sluigi 62187767Sluigistruct cmdline_opts co; /* global options */ 6398943Sluigi 64187767Sluigiint resvd_set_number = RESVD_SET; 65187764Sluigi 66159636Soleg#define GET_UINT_ARG(arg, min, max, tok, s_x) do { \ 67159636Soleg if (!ac) \ 68159636Soleg errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \ 69159636Soleg if (_substrcmp(*av, "tablearg") == 0) { \ 70159636Soleg arg = IP_FW_TABLEARG; \ 71159636Soleg break; \ 72159636Soleg } \ 73159636Soleg \ 74159636Soleg { \ 75159636Soleg long val; \ 76159636Soleg char *end; \ 77159636Soleg \ 78159636Soleg val = strtol(*av, &end, 10); \ 79159636Soleg \ 80159636Soleg if (!isdigit(**av) || *end != '\0' || (val == 0 && errno == EINVAL)) \ 81159636Soleg errx(EX_DATAERR, "%s: invalid argument: %s", \ 82159636Soleg match_value(s_x, tok), *av); \ 83159636Soleg \ 84159636Soleg if (errno == ERANGE || val < min || val > max) \ 85159636Soleg errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \ 86159636Soleg match_value(s_x, tok), min, max, *av); \ 87159636Soleg \ 88159636Soleg if (val == IP_FW_TABLEARG) \ 89159636Soleg errx(EX_DATAERR, "%s: illegal argument value: %s", \ 90159636Soleg match_value(s_x, tok), *av); \ 91159636Soleg arg = val; \ 92159636Soleg } \ 93158879Soleg} while (0) 94158879Soleg 95187762Sluigistatic void 96187762SluigiPRINT_UINT_ARG(const char *str, uint32_t arg) 97187762Sluigi{ 98187762Sluigi if (str != NULL) 99187762Sluigi printf("%s",str); 100187762Sluigi if (arg == IP_FW_TABLEARG) 101187762Sluigi printf("tablearg"); 102187762Sluigi else 103187762Sluigi printf("%u", arg); 104187762Sluigi} 105159636Soleg 10698943Sluigistatic struct _s_x f_tcpflags[] = { 10798943Sluigi { "syn", TH_SYN }, 10898943Sluigi { "fin", TH_FIN }, 10998943Sluigi { "ack", TH_ACK }, 11098943Sluigi { "psh", TH_PUSH }, 11198943Sluigi { "rst", TH_RST }, 11298943Sluigi { "urg", TH_URG }, 11398943Sluigi { "tcp flag", 0 }, 11498943Sluigi { NULL, 0 } 11598943Sluigi}; 11698943Sluigi 11798943Sluigistatic struct _s_x f_tcpopts[] = { 11898943Sluigi { "mss", IP_FW_TCPOPT_MSS }, 11998943Sluigi { "maxseg", IP_FW_TCPOPT_MSS }, 12098943Sluigi { "window", IP_FW_TCPOPT_WINDOW }, 12198943Sluigi { "sack", IP_FW_TCPOPT_SACK }, 12298943Sluigi { "ts", IP_FW_TCPOPT_TS }, 12398943Sluigi { "timestamp", IP_FW_TCPOPT_TS }, 12498943Sluigi { "cc", IP_FW_TCPOPT_CC }, 12598943Sluigi { "tcp option", 0 }, 12698943Sluigi { NULL, 0 } 12798943Sluigi}; 12898943Sluigi 12998943Sluigi/* 13098943Sluigi * IP options span the range 0 to 255 so we need to remap them 13198943Sluigi * (though in fact only the low 5 bits are significant). 13298943Sluigi */ 13398943Sluigistatic struct _s_x f_ipopts[] = { 13498943Sluigi { "ssrr", IP_FW_IPOPT_SSRR}, 13598943Sluigi { "lsrr", IP_FW_IPOPT_LSRR}, 13698943Sluigi { "rr", IP_FW_IPOPT_RR}, 13798943Sluigi { "ts", IP_FW_IPOPT_TS}, 13898943Sluigi { "ip option", 0 }, 13998943Sluigi { NULL, 0 } 14098943Sluigi}; 14198943Sluigi 14298943Sluigistatic struct _s_x f_iptos[] = { 14398943Sluigi { "lowdelay", IPTOS_LOWDELAY}, 14498943Sluigi { "throughput", IPTOS_THROUGHPUT}, 14598943Sluigi { "reliability", IPTOS_RELIABILITY}, 14698943Sluigi { "mincost", IPTOS_MINCOST}, 147172801Srpaulo { "congestion", IPTOS_ECN_CE}, 148172801Srpaulo { "ecntransport", IPTOS_ECN_ECT0}, 14998943Sluigi { "ip tos option", 0}, 15098943Sluigi { NULL, 0 } 15198943Sluigi}; 15298943Sluigi 15398943Sluigistatic struct _s_x limit_masks[] = { 15498943Sluigi {"all", DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT}, 15598943Sluigi {"src-addr", DYN_SRC_ADDR}, 15698943Sluigi {"src-port", DYN_SRC_PORT}, 15798943Sluigi {"dst-addr", DYN_DST_ADDR}, 15898943Sluigi {"dst-port", DYN_DST_PORT}, 15998943Sluigi {NULL, 0} 16098943Sluigi}; 16198943Sluigi 16298943Sluigi/* 16398943Sluigi * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines 16498943Sluigi * This is only used in this code. 16598943Sluigi */ 16698943Sluigi#define IPPROTO_ETHERTYPE 0x1000 16798943Sluigistatic struct _s_x ether_types[] = { 16898943Sluigi /* 16998943Sluigi * Note, we cannot use "-:&/" in the names because they are field 17098943Sluigi * separators in the type specifications. Also, we use s = NULL as 17198943Sluigi * end-delimiter, because a type of 0 can be legal. 17298943Sluigi */ 17398943Sluigi { "ip", 0x0800 }, 17498943Sluigi { "ipv4", 0x0800 }, 17598943Sluigi { "ipv6", 0x86dd }, 17698943Sluigi { "arp", 0x0806 }, 17798943Sluigi { "rarp", 0x8035 }, 17898943Sluigi { "vlan", 0x8100 }, 17998943Sluigi { "loop", 0x9000 }, 18098943Sluigi { "trail", 0x1000 }, 18198943Sluigi { "at", 0x809b }, 18298943Sluigi { "atalk", 0x809b }, 18398943Sluigi { "aarp", 0x80f3 }, 18498943Sluigi { "pppoe_disc", 0x8863 }, 18598943Sluigi { "pppoe_sess", 0x8864 }, 18698943Sluigi { "ipx_8022", 0x00E0 }, 18798943Sluigi { "ipx_8023", 0x0000 }, 18898943Sluigi { "ipx_ii", 0x8137 }, 18998943Sluigi { "ipx_snap", 0x8137 }, 19098943Sluigi { "ipx", 0x8137 }, 19198943Sluigi { "ns", 0x0600 }, 19298943Sluigi { NULL, 0 } 19398943Sluigi}; 19498943Sluigi 19598943Sluigienum tokens { 19698943Sluigi TOK_NULL=0, 19798943Sluigi 19898943Sluigi TOK_OR, 19998943Sluigi TOK_NOT, 200101641Sluigi TOK_STARTBRACE, 201101641Sluigi TOK_ENDBRACE, 20298943Sluigi 20398943Sluigi TOK_ACCEPT, 20498943Sluigi TOK_COUNT, 20598943Sluigi TOK_PIPE, 20698943Sluigi TOK_QUEUE, 20798943Sluigi TOK_DIVERT, 20898943Sluigi TOK_TEE, 209141351Sglebius TOK_NETGRAPH, 210141351Sglebius TOK_NGTEE, 21198943Sluigi TOK_FORWARD, 21298943Sluigi TOK_SKIPTO, 21398943Sluigi TOK_DENY, 21498943Sluigi TOK_REJECT, 21598943Sluigi TOK_RESET, 21698943Sluigi TOK_UNREACH, 21798943Sluigi TOK_CHECKSTATE, 218165648Spiso TOK_NAT, 21998943Sluigi 220136071Sgreen TOK_ALTQ, 221136071Sgreen TOK_LOG, 222158879Soleg TOK_TAG, 223158879Soleg TOK_UNTAG, 224136071Sgreen 225158879Soleg TOK_TAGGED, 22698943Sluigi TOK_UID, 22798943Sluigi TOK_GID, 228133600Scsjp TOK_JAIL, 22998943Sluigi TOK_IN, 23098943Sluigi TOK_LIMIT, 23198943Sluigi TOK_KEEPSTATE, 23298943Sluigi TOK_LAYER2, 23398943Sluigi TOK_OUT, 234136073Sgreen TOK_DIVERTED, 235136073Sgreen TOK_DIVERTEDLOOPBACK, 236136073Sgreen TOK_DIVERTEDOUTPUT, 23798943Sluigi TOK_XMIT, 23898943Sluigi TOK_RECV, 23998943Sluigi TOK_VIA, 24098943Sluigi TOK_FRAG, 24198943Sluigi TOK_IPOPTS, 24298943Sluigi TOK_IPLEN, 24398943Sluigi TOK_IPID, 24498943Sluigi TOK_IPPRECEDENCE, 24598943Sluigi TOK_IPTOS, 24698943Sluigi TOK_IPTTL, 24798943Sluigi TOK_IPVER, 24898943Sluigi TOK_ESTAB, 24998943Sluigi TOK_SETUP, 250136075Sgreen TOK_TCPDATALEN, 25198943Sluigi TOK_TCPFLAGS, 25298943Sluigi TOK_TCPOPTS, 25398943Sluigi TOK_TCPSEQ, 25498943Sluigi TOK_TCPACK, 25598943Sluigi TOK_TCPWIN, 25698943Sluigi TOK_ICMPTYPES, 257102087Sluigi TOK_MAC, 258102087Sluigi TOK_MACTYPE, 259112250Scjc TOK_VERREVPATH, 260128575Sandre TOK_VERSRCREACH, 261133387Sandre TOK_ANTISPOOF, 262117241Sluigi TOK_IPSEC, 263117469Sluigi TOK_COMMENT, 26498943Sluigi 26598943Sluigi TOK_PLR, 266101978Sluigi TOK_NOERROR, 26798943Sluigi TOK_BUCKETS, 26898943Sluigi TOK_DSTIP, 26998943Sluigi TOK_SRCIP, 27098943Sluigi TOK_DSTPORT, 27198943Sluigi TOK_SRCPORT, 27298943Sluigi TOK_ALL, 27398943Sluigi TOK_MASK, 27498943Sluigi TOK_BW, 27598943Sluigi TOK_DELAY, 27698943Sluigi TOK_RED, 27798943Sluigi TOK_GRED, 27898943Sluigi TOK_DROPTAIL, 27998943Sluigi TOK_PROTO, 28098943Sluigi TOK_WEIGHT, 281165648Spiso TOK_IP, 282165648Spiso TOK_IF, 283165648Spiso TOK_ALOG, 284165648Spiso TOK_DENY_INC, 285165648Spiso TOK_SAME_PORTS, 286165648Spiso TOK_UNREG_ONLY, 287165648Spiso TOK_RESET_ADDR, 288165648Spiso TOK_ALIAS_REV, 289165648Spiso TOK_PROXY_ONLY, 290165648Spiso TOK_REDIR_ADDR, 291165648Spiso TOK_REDIR_PORT, 292165648Spiso TOK_REDIR_PROTO, 293145246Sbrooks 294145246Sbrooks TOK_IPV6, 295145246Sbrooks TOK_FLOWID, 296145246Sbrooks TOK_ICMP6TYPES, 297145246Sbrooks TOK_EXT6HDR, 298145246Sbrooks TOK_DSTIP6, 299145246Sbrooks TOK_SRCIP6, 300146894Smlaier 301146894Smlaier TOK_IPV4, 302149020Sbz TOK_UNREACH6, 303149020Sbz TOK_RESET6, 304178888Sjulian 305178888Sjulian TOK_FIB, 306178888Sjulian TOK_SETFIB, 30798943Sluigi}; 30898943Sluigi 30998943Sluigistruct _s_x dummynet_params[] = { 31098943Sluigi { "plr", TOK_PLR }, 311101978Sluigi { "noerror", TOK_NOERROR }, 31298943Sluigi { "buckets", TOK_BUCKETS }, 31398943Sluigi { "dst-ip", TOK_DSTIP }, 31498943Sluigi { "src-ip", TOK_SRCIP }, 31598943Sluigi { "dst-port", TOK_DSTPORT }, 31698943Sluigi { "src-port", TOK_SRCPORT }, 31798943Sluigi { "proto", TOK_PROTO }, 31898943Sluigi { "weight", TOK_WEIGHT }, 31998943Sluigi { "all", TOK_ALL }, 32098943Sluigi { "mask", TOK_MASK }, 32198943Sluigi { "droptail", TOK_DROPTAIL }, 32298943Sluigi { "red", TOK_RED }, 32398943Sluigi { "gred", TOK_GRED }, 32498943Sluigi { "bw", TOK_BW }, 32598943Sluigi { "bandwidth", TOK_BW }, 32698943Sluigi { "delay", TOK_DELAY }, 32799475Sluigi { "pipe", TOK_PIPE }, 32898943Sluigi { "queue", TOK_QUEUE }, 329145246Sbrooks { "flow-id", TOK_FLOWID}, 330145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 331145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 332145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 333145246Sbrooks { "src-ip6", TOK_SRCIP6}, 33498943Sluigi { "dummynet-params", TOK_NULL }, 335117328Sluigi { NULL, 0 } /* terminator */ 33698943Sluigi}; 33798943Sluigi 338165648Spisostruct _s_x nat_params[] = { 339165648Spiso { "ip", TOK_IP }, 340165648Spiso { "if", TOK_IF }, 341165648Spiso { "log", TOK_ALOG }, 342165648Spiso { "deny_in", TOK_DENY_INC }, 343165648Spiso { "same_ports", TOK_SAME_PORTS }, 344165648Spiso { "unreg_only", TOK_UNREG_ONLY }, 345165648Spiso { "reset", TOK_RESET_ADDR }, 346165648Spiso { "reverse", TOK_ALIAS_REV }, 347165648Spiso { "proxy_only", TOK_PROXY_ONLY }, 348165648Spiso { "redirect_addr", TOK_REDIR_ADDR }, 349165648Spiso { "redirect_port", TOK_REDIR_PORT }, 350165648Spiso { "redirect_proto", TOK_REDIR_PROTO }, 351165648Spiso { NULL, 0 } /* terminator */ 352165648Spiso}; 353165648Spiso 35498943Sluigistruct _s_x rule_actions[] = { 35598943Sluigi { "accept", TOK_ACCEPT }, 35698943Sluigi { "pass", TOK_ACCEPT }, 35798943Sluigi { "allow", TOK_ACCEPT }, 35898943Sluigi { "permit", TOK_ACCEPT }, 35998943Sluigi { "count", TOK_COUNT }, 36098943Sluigi { "pipe", TOK_PIPE }, 36198943Sluigi { "queue", TOK_QUEUE }, 36298943Sluigi { "divert", TOK_DIVERT }, 36398943Sluigi { "tee", TOK_TEE }, 364141351Sglebius { "netgraph", TOK_NETGRAPH }, 365141351Sglebius { "ngtee", TOK_NGTEE }, 36698943Sluigi { "fwd", TOK_FORWARD }, 36798943Sluigi { "forward", TOK_FORWARD }, 36898943Sluigi { "skipto", TOK_SKIPTO }, 36998943Sluigi { "deny", TOK_DENY }, 37098943Sluigi { "drop", TOK_DENY }, 37198943Sluigi { "reject", TOK_REJECT }, 372149020Sbz { "reset6", TOK_RESET6 }, 37398943Sluigi { "reset", TOK_RESET }, 374149020Sbz { "unreach6", TOK_UNREACH6 }, 37599475Sluigi { "unreach", TOK_UNREACH }, 37698943Sluigi { "check-state", TOK_CHECKSTATE }, 377117469Sluigi { "//", TOK_COMMENT }, 378165648Spiso { "nat", TOK_NAT }, 379178888Sjulian { "setfib", TOK_SETFIB }, 380117328Sluigi { NULL, 0 } /* terminator */ 38198943Sluigi}; 38298943Sluigi 383136071Sgreenstruct _s_x rule_action_params[] = { 384136071Sgreen { "altq", TOK_ALTQ }, 385136071Sgreen { "log", TOK_LOG }, 386158879Soleg { "tag", TOK_TAG }, 387158879Soleg { "untag", TOK_UNTAG }, 388136071Sgreen { NULL, 0 } /* terminator */ 389136071Sgreen}; 390136071Sgreen 39198943Sluigistruct _s_x rule_options[] = { 392158879Soleg { "tagged", TOK_TAGGED }, 39398943Sluigi { "uid", TOK_UID }, 39498943Sluigi { "gid", TOK_GID }, 395133600Scsjp { "jail", TOK_JAIL }, 39698943Sluigi { "in", TOK_IN }, 39798943Sluigi { "limit", TOK_LIMIT }, 39898943Sluigi { "keep-state", TOK_KEEPSTATE }, 39998943Sluigi { "bridged", TOK_LAYER2 }, 40098943Sluigi { "layer2", TOK_LAYER2 }, 40198943Sluigi { "out", TOK_OUT }, 402136073Sgreen { "diverted", TOK_DIVERTED }, 403136073Sgreen { "diverted-loopback", TOK_DIVERTEDLOOPBACK }, 404136073Sgreen { "diverted-output", TOK_DIVERTEDOUTPUT }, 40598943Sluigi { "xmit", TOK_XMIT }, 40698943Sluigi { "recv", TOK_RECV }, 40798943Sluigi { "via", TOK_VIA }, 40898943Sluigi { "fragment", TOK_FRAG }, 40998943Sluigi { "frag", TOK_FRAG }, 410178888Sjulian { "fib", TOK_FIB }, 41198943Sluigi { "ipoptions", TOK_IPOPTS }, 41298943Sluigi { "ipopts", TOK_IPOPTS }, 41398943Sluigi { "iplen", TOK_IPLEN }, 41498943Sluigi { "ipid", TOK_IPID }, 41598943Sluigi { "ipprecedence", TOK_IPPRECEDENCE }, 41698943Sluigi { "iptos", TOK_IPTOS }, 41798943Sluigi { "ipttl", TOK_IPTTL }, 41898943Sluigi { "ipversion", TOK_IPVER }, 41998943Sluigi { "ipver", TOK_IPVER }, 42098943Sluigi { "estab", TOK_ESTAB }, 42198943Sluigi { "established", TOK_ESTAB }, 42298943Sluigi { "setup", TOK_SETUP }, 423136075Sgreen { "tcpdatalen", TOK_TCPDATALEN }, 42498943Sluigi { "tcpflags", TOK_TCPFLAGS }, 42598943Sluigi { "tcpflgs", TOK_TCPFLAGS }, 42698943Sluigi { "tcpoptions", TOK_TCPOPTS }, 42798943Sluigi { "tcpopts", TOK_TCPOPTS }, 42898943Sluigi { "tcpseq", TOK_TCPSEQ }, 42998943Sluigi { "tcpack", TOK_TCPACK }, 43098943Sluigi { "tcpwin", TOK_TCPWIN }, 43199909Sluigi { "icmptype", TOK_ICMPTYPES }, 43298943Sluigi { "icmptypes", TOK_ICMPTYPES }, 433102087Sluigi { "dst-ip", TOK_DSTIP }, 434102087Sluigi { "src-ip", TOK_SRCIP }, 435102087Sluigi { "dst-port", TOK_DSTPORT }, 436102087Sluigi { "src-port", TOK_SRCPORT }, 437102087Sluigi { "proto", TOK_PROTO }, 438102087Sluigi { "MAC", TOK_MAC }, 439102087Sluigi { "mac", TOK_MAC }, 440102087Sluigi { "mac-type", TOK_MACTYPE }, 441112250Scjc { "verrevpath", TOK_VERREVPATH }, 442128575Sandre { "versrcreach", TOK_VERSRCREACH }, 443133387Sandre { "antispoof", TOK_ANTISPOOF }, 444117241Sluigi { "ipsec", TOK_IPSEC }, 445145246Sbrooks { "icmp6type", TOK_ICMP6TYPES }, 446145246Sbrooks { "icmp6types", TOK_ICMP6TYPES }, 447145246Sbrooks { "ext6hdr", TOK_EXT6HDR}, 448145246Sbrooks { "flow-id", TOK_FLOWID}, 449145246Sbrooks { "ipv6", TOK_IPV6}, 450145246Sbrooks { "ip6", TOK_IPV6}, 451146894Smlaier { "ipv4", TOK_IPV4}, 452146894Smlaier { "ip4", TOK_IPV4}, 453145246Sbrooks { "dst-ipv6", TOK_DSTIP6}, 454145246Sbrooks { "dst-ip6", TOK_DSTIP6}, 455145246Sbrooks { "src-ipv6", TOK_SRCIP6}, 456145246Sbrooks { "src-ip6", TOK_SRCIP6}, 457117469Sluigi { "//", TOK_COMMENT }, 45898943Sluigi 45998943Sluigi { "not", TOK_NOT }, /* pseudo option */ 46098943Sluigi { "!", /* escape ? */ TOK_NOT }, /* pseudo option */ 46198943Sluigi { "or", TOK_OR }, /* pseudo option */ 46298943Sluigi { "|", /* escape */ TOK_OR }, /* pseudo option */ 463101641Sluigi { "{", TOK_STARTBRACE }, /* pseudo option */ 464101641Sluigi { "(", TOK_STARTBRACE }, /* pseudo option */ 465101641Sluigi { "}", TOK_ENDBRACE }, /* pseudo option */ 466101641Sluigi { ")", TOK_ENDBRACE }, /* pseudo option */ 467117328Sluigi { NULL, 0 } /* terminator */ 46898943Sluigi}; 46998943Sluigi 470117328Sluigistatic __inline uint64_t 471117328Sluigialign_uint64(uint64_t *pll) { 472117328Sluigi uint64_t ret; 473115793Sticso 474115793Sticso bcopy (pll, &ret, sizeof(ret)); 475115793Sticso return ret; 476129389Sstefanf} 477115793Sticso 478187767Sluigivoid * 479187716Sluigisafe_calloc(size_t number, size_t size) 480187716Sluigi{ 481187716Sluigi void *ret = calloc(number, size); 482187716Sluigi 483187716Sluigi if (ret == NULL) 484187716Sluigi err(EX_OSERR, "calloc"); 485187716Sluigi return ret; 486187716Sluigi} 487187716Sluigi 488187767Sluigivoid * 489187716Sluigisafe_realloc(void *ptr, size_t size) 490187716Sluigi{ 491187716Sluigi void *ret = realloc(ptr, size); 492187716Sluigi 493187716Sluigi if (ret == NULL) 494187716Sluigi err(EX_OSERR, "realloc"); 495187716Sluigi return ret; 496187716Sluigi} 497187716Sluigi 498117328Sluigi/* 499117328Sluigi * conditionally runs the command. 500117328Sluigi */ 501117469Sluigistatic int 502119740Stmmdo_cmd(int optname, void *optval, uintptr_t optlen) 503117328Sluigi{ 504117328Sluigi static int s = -1; /* the socket */ 505117328Sluigi int i; 506117577Sluigi 507187764Sluigi if (co.test_only) 508117328Sluigi return 0; 509117328Sluigi 510117328Sluigi if (s == -1) 511117328Sluigi s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); 512117328Sluigi if (s < 0) 513117328Sluigi err(EX_UNAVAILABLE, "socket"); 514117328Sluigi 515117328Sluigi if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET || 516130281Sru optname == IP_FW_ADD || optname == IP_FW_TABLE_LIST || 517165648Spiso optname == IP_FW_TABLE_GETSIZE || 518165648Spiso optname == IP_FW_NAT_GET_CONFIG || 519165648Spiso optname == IP_FW_NAT_GET_LOG) 520117328Sluigi i = getsockopt(s, IPPROTO_IP, optname, optval, 521117328Sluigi (socklen_t *)optlen); 522117328Sluigi else 523117328Sluigi i = setsockopt(s, IPPROTO_IP, optname, optval, optlen); 524117328Sluigi return i; 525117328Sluigi} 526117328Sluigi 52798943Sluigi/** 52898943Sluigi * match_token takes a table and a string, returns the value associated 529117328Sluigi * with the string (-1 in case of failure). 53098943Sluigi */ 53198943Sluigistatic int 53298943Sluigimatch_token(struct _s_x *table, char *string) 53398943Sluigi{ 53498943Sluigi struct _s_x *pt; 535117469Sluigi uint i = strlen(string); 53698943Sluigi 53798943Sluigi for (pt = table ; i && pt->s != NULL ; pt++) 53898943Sluigi if (strlen(pt->s) == i && !bcmp(string, pt->s, i)) 53998943Sluigi return pt->x; 54098943Sluigi return -1; 541129389Sstefanf} 54298943Sluigi 543117328Sluigi/** 544117328Sluigi * match_value takes a table and a value, returns the string associated 545117328Sluigi * with the value (NULL in case of failure). 546117328Sluigi */ 547117469Sluigistatic char const * 548117469Sluigimatch_value(struct _s_x *p, int value) 54998943Sluigi{ 55098943Sluigi for (; p->s != NULL; p++) 55198943Sluigi if (p->x == value) 55298943Sluigi return p->s; 55398943Sluigi return NULL; 55498943Sluigi} 55598943Sluigi 55698943Sluigi/* 557140271Sbrooks * _substrcmp takes two strings and returns 1 if they do not match, 558140271Sbrooks * and 0 if they match exactly or the first string is a sub-string 559140271Sbrooks * of the second. A warning is printed to stderr in the case that the 560140271Sbrooks * first string is a sub-string of the second. 561140271Sbrooks * 562140271Sbrooks * This function will be removed in the future through the usual 563140271Sbrooks * deprecation process. 564140271Sbrooks */ 565187767Sluigiint 566140271Sbrooks_substrcmp(const char *str1, const char* str2) 567140271Sbrooks{ 568140271Sbrooks 569140271Sbrooks if (strncmp(str1, str2, strlen(str1)) != 0) 570140271Sbrooks return 1; 571140271Sbrooks 572140271Sbrooks if (strlen(str1) != strlen(str2)) 573140271Sbrooks warnx("DEPRECATED: '%s' matched '%s' as a sub-string", 574140271Sbrooks str1, str2); 575140271Sbrooks return 0; 576140271Sbrooks} 577140271Sbrooks 578140271Sbrooks/* 579140271Sbrooks * _substrcmp2 takes three strings and returns 1 if the first two do not match, 580140271Sbrooks * and 0 if they match exactly or the second string is a sub-string 581140271Sbrooks * of the first. A warning is printed to stderr in the case that the 582140271Sbrooks * first string does not match the third. 583140271Sbrooks * 584140271Sbrooks * This function exists to warn about the bizzare construction 585140271Sbrooks * strncmp(str, "by", 2) which is used to allow people to use a shotcut 586140271Sbrooks * for "bytes". The problem is that in addition to accepting "by", 587140271Sbrooks * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any 588140271Sbrooks * other string beginning with "by". 589140271Sbrooks * 590140271Sbrooks * This function will be removed in the future through the usual 591140271Sbrooks * deprecation process. 592140271Sbrooks */ 593140271Sbrooksstatic int 594140271Sbrooks_substrcmp2(const char *str1, const char* str2, const char* str3) 595140271Sbrooks{ 596140271Sbrooks 597140271Sbrooks if (strncmp(str1, str2, strlen(str2)) != 0) 598140271Sbrooks return 1; 599140271Sbrooks 600140271Sbrooks if (strcmp(str1, str3) != 0) 601140271Sbrooks warnx("DEPRECATED: '%s' matched '%s'", 602140271Sbrooks str1, str3); 603140271Sbrooks return 0; 604140271Sbrooks} 605140271Sbrooks 606140271Sbrooks/* 60798943Sluigi * prints one port, symbolic or numeric 60898943Sluigi */ 60998943Sluigistatic void 610117328Sluigiprint_port(int proto, uint16_t port) 61198943Sluigi{ 61298943Sluigi 61398943Sluigi if (proto == IPPROTO_ETHERTYPE) { 614117469Sluigi char const *s; 61598943Sluigi 616187764Sluigi if (co.do_resolv && (s = match_value(ether_types, port)) ) 61798943Sluigi printf("%s", s); 61898943Sluigi else 61998943Sluigi printf("0x%04x", port); 62098943Sluigi } else { 62198943Sluigi struct servent *se = NULL; 622187764Sluigi if (co.do_resolv) { 62398943Sluigi struct protoent *pe = getprotobynumber(proto); 62498943Sluigi 62598943Sluigi se = getservbyport(htons(port), pe ? pe->p_name : NULL); 62698943Sluigi } 62798943Sluigi if (se) 62898943Sluigi printf("%s", se->s_name); 62998943Sluigi else 63098943Sluigi printf("%d", port); 63198943Sluigi } 63298943Sluigi} 63398943Sluigi 634117328Sluigistruct _s_x _port_name[] = { 635117328Sluigi {"dst-port", O_IP_DSTPORT}, 636117328Sluigi {"src-port", O_IP_SRCPORT}, 637117328Sluigi {"ipid", O_IPID}, 638117328Sluigi {"iplen", O_IPLEN}, 639117328Sluigi {"ipttl", O_IPTTL}, 640117328Sluigi {"mac-type", O_MAC_TYPE}, 641136075Sgreen {"tcpdatalen", O_TCPDATALEN}, 642158879Soleg {"tagged", O_TAGGED}, 643117328Sluigi {NULL, 0} 644117328Sluigi}; 645117328Sluigi 64698943Sluigi/* 647117328Sluigi * Print the values in a list 16-bit items of the types above. 64898943Sluigi * XXX todo: add support for mask. 64998943Sluigi */ 65098943Sluigistatic void 651102087Sluigiprint_newports(ipfw_insn_u16 *cmd, int proto, int opcode) 65298943Sluigi{ 653117328Sluigi uint16_t *p = cmd->ports; 65498943Sluigi int i; 655117469Sluigi char const *sep; 65698943Sluigi 657116690Sluigi if (opcode != 0) { 658117328Sluigi sep = match_value(_port_name, opcode); 659117328Sluigi if (sep == NULL) 660116690Sluigi sep = "???"; 661116690Sluigi printf (" %s", sep); 662116690Sluigi } 663116690Sluigi sep = " "; 66498943Sluigi for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) { 66598943Sluigi printf(sep); 66698943Sluigi print_port(proto, p[0]); 66798943Sluigi if (p[0] != p[1]) { 66898943Sluigi printf("-"); 66998943Sluigi print_port(proto, p[1]); 67098943Sluigi } 67198943Sluigi sep = ","; 67298943Sluigi } 67398943Sluigi} 67498943Sluigi 67598943Sluigi/* 67698943Sluigi * Like strtol, but also translates service names into port numbers 67798943Sluigi * for some protocols. 67898943Sluigi * In particular: 67998943Sluigi * proto == -1 disables the protocol check; 68098943Sluigi * proto == IPPROTO_ETHERTYPE looks up an internal table 68198943Sluigi * proto == <some value in /etc/protocols> matches the values there. 682101628Sluigi * Returns *end == s in case the parameter is not found. 68398943Sluigi */ 68498943Sluigistatic int 68598943Sluigistrtoport(char *s, char **end, int base, int proto) 68698943Sluigi{ 687101628Sluigi char *p, *buf; 688101628Sluigi char *s1; 68998943Sluigi int i; 69098943Sluigi 691101628Sluigi *end = s; /* default - not found */ 692117577Sluigi if (*s == '\0') 693101628Sluigi return 0; /* not found */ 694106505Smaxim 69598943Sluigi if (isdigit(*s)) 69698943Sluigi return strtol(s, end, base); 69798943Sluigi 69898943Sluigi /* 699101628Sluigi * find separator. '\\' escapes the next char. 70098943Sluigi */ 701101628Sluigi for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++) 702101628Sluigi if (*s1 == '\\' && s1[1] != '\0') 703101628Sluigi s1++; 70498943Sluigi 705187716Sluigi buf = safe_calloc(s1 - s + 1, 1); 706101628Sluigi 707101628Sluigi /* 708101628Sluigi * copy into a buffer skipping backslashes 709101628Sluigi */ 710101628Sluigi for (p = s, i = 0; p != s1 ; p++) 711117577Sluigi if (*p != '\\') 712101628Sluigi buf[i++] = *p; 713101628Sluigi buf[i++] = '\0'; 714101628Sluigi 71598943Sluigi if (proto == IPPROTO_ETHERTYPE) { 716101628Sluigi i = match_token(ether_types, buf); 717101628Sluigi free(buf); 718101628Sluigi if (i != -1) { /* found */ 71998943Sluigi *end = s1; 72098943Sluigi return i; 72198943Sluigi } 72298943Sluigi } else { 72398943Sluigi struct protoent *pe = NULL; 72498943Sluigi struct servent *se; 72598943Sluigi 72698943Sluigi if (proto != 0) 72798943Sluigi pe = getprotobynumber(proto); 72898943Sluigi setservent(1); 729101628Sluigi se = getservbyname(buf, pe ? pe->p_name : NULL); 730101628Sluigi free(buf); 73198943Sluigi if (se != NULL) { 73298943Sluigi *end = s1; 73398943Sluigi return ntohs(se->s_port); 73498943Sluigi } 73598943Sluigi } 736101628Sluigi return 0; /* not found */ 73798943Sluigi} 73898943Sluigi 73998943Sluigi/* 740136071Sgreen * Map between current altq queue id numbers and names. 741136071Sgreen */ 742136071Sgreenstatic int altq_fetched = 0; 743136071Sgreenstatic TAILQ_HEAD(, pf_altq) altq_entries = 744136071Sgreen TAILQ_HEAD_INITIALIZER(altq_entries); 745136071Sgreen 746136071Sgreenstatic void 747136071Sgreenaltq_set_enabled(int enabled) 748136071Sgreen{ 749136071Sgreen int pffd; 750136071Sgreen 751136071Sgreen pffd = open("/dev/pf", O_RDWR); 752136071Sgreen if (pffd == -1) 753136071Sgreen err(EX_UNAVAILABLE, 754136071Sgreen "altq support opening pf(4) control device"); 755136071Sgreen if (enabled) { 756136071Sgreen if (ioctl(pffd, DIOCSTARTALTQ) != 0 && errno != EEXIST) 757136071Sgreen err(EX_UNAVAILABLE, "enabling altq"); 758136071Sgreen } else { 759136071Sgreen if (ioctl(pffd, DIOCSTOPALTQ) != 0 && errno != ENOENT) 760136071Sgreen err(EX_UNAVAILABLE, "disabling altq"); 761136071Sgreen } 762136071Sgreen close(pffd); 763136071Sgreen} 764136071Sgreen 765136071Sgreenstatic void 766187477Sluigialtq_fetch(void) 767136071Sgreen{ 768136071Sgreen struct pfioc_altq pfioc; 769136071Sgreen struct pf_altq *altq; 770187477Sluigi int pffd; 771187477Sluigi unsigned int mnr; 772136071Sgreen 773136071Sgreen if (altq_fetched) 774136071Sgreen return; 775136071Sgreen altq_fetched = 1; 776136071Sgreen pffd = open("/dev/pf", O_RDONLY); 777136071Sgreen if (pffd == -1) { 778136071Sgreen warn("altq support opening pf(4) control device"); 779136071Sgreen return; 780136071Sgreen } 781136071Sgreen bzero(&pfioc, sizeof(pfioc)); 782136071Sgreen if (ioctl(pffd, DIOCGETALTQS, &pfioc) != 0) { 783136071Sgreen warn("altq support getting queue list"); 784136071Sgreen close(pffd); 785136071Sgreen return; 786136071Sgreen } 787136071Sgreen mnr = pfioc.nr; 788136071Sgreen for (pfioc.nr = 0; pfioc.nr < mnr; pfioc.nr++) { 789136071Sgreen if (ioctl(pffd, DIOCGETALTQ, &pfioc) != 0) { 790136071Sgreen if (errno == EBUSY) 791136071Sgreen break; 792136071Sgreen warn("altq support getting queue list"); 793136071Sgreen close(pffd); 794136071Sgreen return; 795136071Sgreen } 796136071Sgreen if (pfioc.altq.qid == 0) 797136071Sgreen continue; 798187716Sluigi altq = safe_calloc(1, sizeof(*altq)); 799136071Sgreen *altq = pfioc.altq; 800136071Sgreen TAILQ_INSERT_TAIL(&altq_entries, altq, entries); 801136071Sgreen } 802136071Sgreen close(pffd); 803136071Sgreen} 804136071Sgreen 805136071Sgreenstatic u_int32_t 806136071Sgreenaltq_name_to_qid(const char *name) 807136071Sgreen{ 808136071Sgreen struct pf_altq *altq; 809136071Sgreen 810136071Sgreen altq_fetch(); 811136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 812136071Sgreen if (strcmp(name, altq->qname) == 0) 813136071Sgreen break; 814136071Sgreen if (altq == NULL) 815136071Sgreen errx(EX_DATAERR, "altq has no queue named `%s'", name); 816136071Sgreen return altq->qid; 817136071Sgreen} 818136071Sgreen 819136071Sgreenstatic const char * 820136071Sgreenaltq_qid_to_name(u_int32_t qid) 821136071Sgreen{ 822136071Sgreen struct pf_altq *altq; 823136071Sgreen 824136071Sgreen altq_fetch(); 825136071Sgreen TAILQ_FOREACH(altq, &altq_entries, entries) 826136071Sgreen if (qid == altq->qid) 827136071Sgreen break; 828136071Sgreen if (altq == NULL) 829136071Sgreen return NULL; 830136071Sgreen return altq->qname; 831136071Sgreen} 832136071Sgreen 833136071Sgreenstatic void 834136071Sgreenfill_altq_qid(u_int32_t *qid, const char *av) 835136071Sgreen{ 836136071Sgreen *qid = altq_name_to_qid(av); 837136071Sgreen} 838136071Sgreen 839136071Sgreen/* 840117328Sluigi * Fill the body of the command with the list of port ranges. 84198943Sluigi */ 84298943Sluigistatic int 84398943Sluigifill_newports(ipfw_insn_u16 *cmd, char *av, int proto) 84498943Sluigi{ 845117328Sluigi uint16_t a, b, *p = cmd->ports; 84698943Sluigi int i = 0; 847102087Sluigi char *s = av; 84898943Sluigi 849102087Sluigi while (*s) { 85098943Sluigi a = strtoport(av, &s, 0, proto); 851159636Soleg if (s == av) /* empty or invalid argument */ 852159636Soleg return (0); 853159636Soleg 854159636Soleg switch (*s) { 855159636Soleg case '-': /* a range */ 856159636Soleg av = s + 1; 85798943Sluigi b = strtoport(av, &s, 0, proto); 858159636Soleg /* Reject expressions like '1-abc' or '1-2-3'. */ 859159636Soleg if (s == av || (*s != ',' && *s != '\0')) 860159636Soleg return (0); 86198943Sluigi p[0] = a; 86298943Sluigi p[1] = b; 863159636Soleg break; 864159636Soleg case ',': /* comma separated list */ 865159636Soleg case '\0': 86698943Sluigi p[0] = p[1] = a; 867159636Soleg break; 868159636Soleg default: 869159636Soleg warnx("port list: invalid separator <%c> in <%s>", 870101978Sluigi *s, av); 871159636Soleg return (0); 872159636Soleg } 873159636Soleg 874102087Sluigi i++; 875102087Sluigi p += 2; 876159636Soleg av = s + 1; 87798943Sluigi } 87898943Sluigi if (i > 0) { 879159636Soleg if (i + 1 > F_LEN_MASK) 880102087Sluigi errx(EX_DATAERR, "too many ports/ranges\n"); 881159636Soleg cmd->o.len |= i + 1; /* leave F_NOT and F_OR untouched */ 88298943Sluigi } 883159636Soleg return (i); 88498943Sluigi} 88598943Sluigi 88698943Sluigistatic struct _s_x icmpcodes[] = { 88798943Sluigi { "net", ICMP_UNREACH_NET }, 88898943Sluigi { "host", ICMP_UNREACH_HOST }, 88998943Sluigi { "protocol", ICMP_UNREACH_PROTOCOL }, 89098943Sluigi { "port", ICMP_UNREACH_PORT }, 89198943Sluigi { "needfrag", ICMP_UNREACH_NEEDFRAG }, 89298943Sluigi { "srcfail", ICMP_UNREACH_SRCFAIL }, 89398943Sluigi { "net-unknown", ICMP_UNREACH_NET_UNKNOWN }, 89498943Sluigi { "host-unknown", ICMP_UNREACH_HOST_UNKNOWN }, 89598943Sluigi { "isolated", ICMP_UNREACH_ISOLATED }, 89698943Sluigi { "net-prohib", ICMP_UNREACH_NET_PROHIB }, 89798943Sluigi { "host-prohib", ICMP_UNREACH_HOST_PROHIB }, 89898943Sluigi { "tosnet", ICMP_UNREACH_TOSNET }, 89998943Sluigi { "toshost", ICMP_UNREACH_TOSHOST }, 90098943Sluigi { "filter-prohib", ICMP_UNREACH_FILTER_PROHIB }, 90198943Sluigi { "host-precedence", ICMP_UNREACH_HOST_PRECEDENCE }, 90298943Sluigi { "precedence-cutoff", ICMP_UNREACH_PRECEDENCE_CUTOFF }, 90398943Sluigi { NULL, 0 } 90498943Sluigi}; 90598943Sluigi 90698943Sluigistatic void 90798943Sluigifill_reject_code(u_short *codep, char *str) 90898943Sluigi{ 90998943Sluigi int val; 91098943Sluigi char *s; 91198943Sluigi 91298943Sluigi val = strtoul(str, &s, 0); 91398943Sluigi if (s == str || *s != '\0' || val >= 0x100) 91498943Sluigi val = match_token(icmpcodes, str); 915102087Sluigi if (val < 0) 91698943Sluigi errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str); 91798943Sluigi *codep = val; 91898943Sluigi return; 91998943Sluigi} 92098943Sluigi 92198943Sluigistatic void 922117328Sluigiprint_reject_code(uint16_t code) 92398943Sluigi{ 924117469Sluigi char const *s = match_value(icmpcodes, code); 92598943Sluigi 92698943Sluigi if (s != NULL) 92799475Sluigi printf("unreach %s", s); 92898943Sluigi else 92999475Sluigi printf("unreach %u", code); 93098943Sluigi} 93198943Sluigi 932149020Sbzstatic struct _s_x icmp6codes[] = { 933149020Sbz { "no-route", ICMP6_DST_UNREACH_NOROUTE }, 934149020Sbz { "admin-prohib", ICMP6_DST_UNREACH_ADMIN }, 935149020Sbz { "address", ICMP6_DST_UNREACH_ADDR }, 936149020Sbz { "port", ICMP6_DST_UNREACH_NOPORT }, 937149020Sbz { NULL, 0 } 938149020Sbz}; 939149020Sbz 940149020Sbzstatic void 941149020Sbzfill_unreach6_code(u_short *codep, char *str) 942149020Sbz{ 943149020Sbz int val; 944149020Sbz char *s; 945149020Sbz 946149020Sbz val = strtoul(str, &s, 0); 947149020Sbz if (s == str || *s != '\0' || val >= 0x100) 948149020Sbz val = match_token(icmp6codes, str); 949149020Sbz if (val < 0) 950149020Sbz errx(EX_DATAERR, "unknown ICMPv6 unreachable code ``%s''", str); 951149020Sbz *codep = val; 952149020Sbz return; 953149020Sbz} 954149020Sbz 955149020Sbzstatic void 956149020Sbzprint_unreach6_code(uint16_t code) 957149020Sbz{ 958149020Sbz char const *s = match_value(icmp6codes, code); 959149020Sbz 960149020Sbz if (s != NULL) 961149020Sbz printf("unreach6 %s", s); 962149020Sbz else 963149020Sbz printf("unreach6 %u", code); 964149020Sbz} 965149020Sbz 96698943Sluigi/* 96798943Sluigi * Returns the number of bits set (from left) in a contiguous bitmask, 96898943Sluigi * or -1 if the mask is not contiguous. 96998943Sluigi * XXX this needs a proper fix. 97098943Sluigi * This effectively works on masks in big-endian (network) format. 97198943Sluigi * when compiled on little endian architectures. 97298943Sluigi * 97398943Sluigi * First bit is bit 7 of the first byte -- note, for MAC addresses, 97498943Sluigi * the first bit on the wire is bit 0 of the first byte. 97598943Sluigi * len is the max length in bits. 97698943Sluigi */ 97798943Sluigistatic int 978117577Sluigicontigmask(uint8_t *p, int len) 97998943Sluigi{ 98098943Sluigi int i, n; 981117577Sluigi 98298943Sluigi for (i=0; i<len ; i++) 98398943Sluigi if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */ 98498943Sluigi break; 98598943Sluigi for (n=i+1; n < len; n++) 98698943Sluigi if ( (p[n/8] & (1 << (7 - (n%8)))) != 0) 98798943Sluigi return -1; /* mask not contiguous */ 98898943Sluigi return i; 98998943Sluigi} 99098943Sluigi 99198943Sluigi/* 99298943Sluigi * print flags set/clear in the two bitmasks passed as parameters. 99398943Sluigi * There is a specialized check for f_tcpflags. 99498943Sluigi */ 99598943Sluigistatic void 996117469Sluigiprint_flags(char const *name, ipfw_insn *cmd, struct _s_x *list) 99798943Sluigi{ 998117469Sluigi char const *comma = ""; 99998943Sluigi int i; 1000117577Sluigi uint8_t set = cmd->arg1 & 0xff; 1001117577Sluigi uint8_t clear = (cmd->arg1 >> 8) & 0xff; 100298943Sluigi 100398943Sluigi if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) { 100498943Sluigi printf(" setup"); 100598943Sluigi return; 100698943Sluigi } 100798943Sluigi 100898943Sluigi printf(" %s ", name); 100998943Sluigi for (i=0; list[i].x != 0; i++) { 101098943Sluigi if (set & list[i].x) { 101198943Sluigi set &= ~list[i].x; 101298943Sluigi printf("%s%s", comma, list[i].s); 101398943Sluigi comma = ","; 101498943Sluigi } 101598943Sluigi if (clear & list[i].x) { 101698943Sluigi clear &= ~list[i].x; 101798943Sluigi printf("%s!%s", comma, list[i].s); 101898943Sluigi comma = ","; 101998943Sluigi } 102098943Sluigi } 102198943Sluigi} 102298943Sluigi 102398943Sluigi/* 102498943Sluigi * Print the ip address contained in a command. 102598943Sluigi */ 102698943Sluigistatic void 1027117469Sluigiprint_ip(ipfw_insn_ip *cmd, char const *s) 102898943Sluigi{ 102998943Sluigi struct hostent *he = NULL; 1030117328Sluigi int len = F_LEN((ipfw_insn *)cmd); 1031117328Sluigi uint32_t *a = ((ipfw_insn_u32 *)cmd)->d; 103298943Sluigi 1033102087Sluigi printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 103498943Sluigi 103598943Sluigi if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) { 103698943Sluigi printf("me"); 103798943Sluigi return; 103898943Sluigi } 1039130281Sru if (cmd->o.opcode == O_IP_SRC_LOOKUP || 1040130281Sru cmd->o.opcode == O_IP_DST_LOOKUP) { 1041130281Sru printf("table(%u", ((ipfw_insn *)cmd)->arg1); 1042130281Sru if (len == F_INSN_SIZE(ipfw_insn_u32)) 1043130281Sru printf(",%u", *a); 1044130281Sru printf(")"); 1045130281Sru return; 1046130281Sru } 104798943Sluigi if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) { 1048117328Sluigi uint32_t x, *map = (uint32_t *)&(cmd->mask); 1049116716Sluigi int i, j; 105098943Sluigi char comma = '{'; 105198943Sluigi 105298943Sluigi x = cmd->o.arg1 - 1; 105398943Sluigi x = htonl( ~x ); 105498943Sluigi cmd->addr.s_addr = htonl(cmd->addr.s_addr); 105598943Sluigi printf("%s/%d", inet_ntoa(cmd->addr), 1056117577Sluigi contigmask((uint8_t *)&x, 32)); 105798943Sluigi x = cmd->addr.s_addr = htonl(cmd->addr.s_addr); 105898943Sluigi x &= 0xff; /* base */ 1059116716Sluigi /* 1060116716Sluigi * Print bits and ranges. 1061116716Sluigi * Locate first bit set (i), then locate first bit unset (j). 1062116716Sluigi * If we have 3+ consecutive bits set, then print them as a 1063116716Sluigi * range, otherwise only print the initial bit and rescan. 1064116716Sluigi */ 106598943Sluigi for (i=0; i < cmd->o.arg1; i++) 1066117328Sluigi if (map[i/32] & (1<<(i & 31))) { 1067116716Sluigi for (j=i+1; j < cmd->o.arg1; j++) 1068117328Sluigi if (!(map[ j/32] & (1<<(j & 31)))) 1069116716Sluigi break; 107098943Sluigi printf("%c%d", comma, i+x); 1071116716Sluigi if (j>i+2) { /* range has at least 3 elements */ 1072116716Sluigi printf("-%d", j-1+x); 1073116716Sluigi i = j-1; 1074116716Sluigi } 107598943Sluigi comma = ','; 107698943Sluigi } 107798943Sluigi printf("}"); 107898943Sluigi return; 107998943Sluigi } 1080117328Sluigi /* 1081117328Sluigi * len == 2 indicates a single IP, whereas lists of 1 or more 1082117328Sluigi * addr/mask pairs have len = (2n+1). We convert len to n so we 1083117328Sluigi * use that to count the number of entries. 1084117328Sluigi */ 1085117328Sluigi for (len = len / 2; len > 0; len--, a += 2) { 1086117328Sluigi int mb = /* mask length */ 1087117328Sluigi (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ? 1088117577Sluigi 32 : contigmask((uint8_t *)&(a[1]), 32); 1089187764Sluigi if (mb == 32 && co.do_resolv) 1090117328Sluigi he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET); 109198943Sluigi if (he != NULL) /* resolved to name */ 109298943Sluigi printf("%s", he->h_name); 109398943Sluigi else if (mb == 0) /* any */ 109498943Sluigi printf("any"); 109598943Sluigi else { /* numeric IP followed by some kind of mask */ 1096117328Sluigi printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) ); 109798943Sluigi if (mb < 0) 1098117328Sluigi printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) ); 109998943Sluigi else if (mb < 32) 110098943Sluigi printf("/%d", mb); 110198943Sluigi } 1102117328Sluigi if (len > 1) 1103117328Sluigi printf(","); 1104117328Sluigi } 110598943Sluigi} 110698943Sluigi 110798943Sluigi/* 110898943Sluigi * prints a MAC address/mask pair 110998943Sluigi */ 111098943Sluigistatic void 1111117577Sluigiprint_mac(uint8_t *addr, uint8_t *mask) 111298943Sluigi{ 111398943Sluigi int l = contigmask(mask, 48); 111498943Sluigi 111598943Sluigi if (l == 0) 111698943Sluigi printf(" any"); 111798943Sluigi else { 111898943Sluigi printf(" %02x:%02x:%02x:%02x:%02x:%02x", 111998943Sluigi addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 112098943Sluigi if (l == -1) 112198943Sluigi printf("&%02x:%02x:%02x:%02x:%02x:%02x", 112298943Sluigi mask[0], mask[1], mask[2], 112398943Sluigi mask[3], mask[4], mask[5]); 112498943Sluigi else if (l < 48) 112598943Sluigi printf("/%d", l); 112698943Sluigi } 112798943Sluigi} 112898943Sluigi 112999475Sluigistatic void 113099475Sluigifill_icmptypes(ipfw_insn_u32 *cmd, char *av) 113199475Sluigi{ 1132117328Sluigi uint8_t type; 113398943Sluigi 113499475Sluigi cmd->d[0] = 0; 113599475Sluigi while (*av) { 113699475Sluigi if (*av == ',') 113799475Sluigi av++; 113899475Sluigi 113999475Sluigi type = strtoul(av, &av, 0); 114099475Sluigi 114199475Sluigi if (*av != ',' && *av != '\0') 114299475Sluigi errx(EX_DATAERR, "invalid ICMP type"); 114399475Sluigi 114499475Sluigi if (type > 31) 114599475Sluigi errx(EX_DATAERR, "ICMP type out of range"); 114699475Sluigi 114799475Sluigi cmd->d[0] |= 1 << type; 114899475Sluigi } 114999475Sluigi cmd->o.opcode = O_ICMPTYPE; 115099475Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 115199475Sluigi} 115299475Sluigi 115399475Sluigistatic void 115499475Sluigiprint_icmptypes(ipfw_insn_u32 *cmd) 115599475Sluigi{ 115699475Sluigi int i; 115799475Sluigi char sep= ' '; 115899475Sluigi 115999475Sluigi printf(" icmptypes"); 116099475Sluigi for (i = 0; i < 32; i++) { 116199475Sluigi if ( (cmd->d[0] & (1 << (i))) == 0) 116299475Sluigi continue; 116399475Sluigi printf("%c%d", sep, i); 116499475Sluigi sep = ','; 116599475Sluigi } 116699475Sluigi} 116799475Sluigi 1168145246Sbrooks/* 1169145246Sbrooks * Print the ip address contained in a command. 1170145246Sbrooks */ 1171145246Sbrooksstatic void 1172145246Sbrooksprint_ip6(ipfw_insn_ip6 *cmd, char const *s) 1173145246Sbrooks{ 1174145246Sbrooks struct hostent *he = NULL; 1175145246Sbrooks int len = F_LEN((ipfw_insn *) cmd) - 1; 1176145246Sbrooks struct in6_addr *a = &(cmd->addr6); 1177145246Sbrooks char trad[255]; 1178145246Sbrooks 1179145246Sbrooks printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s); 1180145246Sbrooks 1181145246Sbrooks if (cmd->o.opcode == O_IP6_SRC_ME || cmd->o.opcode == O_IP6_DST_ME) { 1182145246Sbrooks printf("me6"); 1183145246Sbrooks return; 1184145246Sbrooks } 1185145246Sbrooks if (cmd->o.opcode == O_IP6) { 1186152923Sume printf(" ip6"); 1187145246Sbrooks return; 1188145246Sbrooks } 1189145246Sbrooks 1190145246Sbrooks /* 1191145246Sbrooks * len == 4 indicates a single IP, whereas lists of 1 or more 1192145246Sbrooks * addr/mask pairs have len = (2n+1). We convert len to n so we 1193145246Sbrooks * use that to count the number of entries. 1194145246Sbrooks */ 1195145246Sbrooks 1196145246Sbrooks for (len = len / 4; len > 0; len -= 2, a += 2) { 1197145246Sbrooks int mb = /* mask length */ 1198145246Sbrooks (cmd->o.opcode == O_IP6_SRC || cmd->o.opcode == O_IP6_DST) ? 1199145246Sbrooks 128 : contigmask((uint8_t *)&(a[1]), 128); 1200145246Sbrooks 1201187764Sluigi if (mb == 128 && co.do_resolv) 1202145246Sbrooks he = gethostbyaddr((char *)a, sizeof(*a), AF_INET6); 1203145246Sbrooks if (he != NULL) /* resolved to name */ 1204145246Sbrooks printf("%s", he->h_name); 1205145246Sbrooks else if (mb == 0) /* any */ 1206145246Sbrooks printf("any"); 1207145246Sbrooks else { /* numeric IP followed by some kind of mask */ 1208145246Sbrooks if (inet_ntop(AF_INET6, a, trad, sizeof( trad ) ) == NULL) 1209145246Sbrooks printf("Error ntop in print_ip6\n"); 1210145246Sbrooks printf("%s", trad ); 1211145246Sbrooks if (mb < 0) /* XXX not really legal... */ 1212145246Sbrooks printf(":%s", 1213145246Sbrooks inet_ntop(AF_INET6, &a[1], trad, sizeof(trad))); 1214145246Sbrooks else if (mb < 128) 1215145246Sbrooks printf("/%d", mb); 1216145246Sbrooks } 1217145246Sbrooks if (len > 2) 1218145246Sbrooks printf(","); 1219145246Sbrooks } 1220145246Sbrooks} 1221145246Sbrooks 1222145246Sbrooksstatic void 1223145246Sbrooksfill_icmp6types(ipfw_insn_icmp6 *cmd, char *av) 1224145246Sbrooks{ 1225145246Sbrooks uint8_t type; 1226145246Sbrooks 1227162344Sjhay bzero(cmd, sizeof(*cmd)); 1228145246Sbrooks while (*av) { 1229145246Sbrooks if (*av == ',') 1230145246Sbrooks av++; 1231145246Sbrooks type = strtoul(av, &av, 0); 1232145246Sbrooks if (*av != ',' && *av != '\0') 1233145246Sbrooks errx(EX_DATAERR, "invalid ICMP6 type"); 1234145246Sbrooks /* 1235145246Sbrooks * XXX: shouldn't this be 0xFF? I can't see any reason why 1236145246Sbrooks * we shouldn't be able to filter all possiable values 1237145246Sbrooks * regardless of the ability of the rest of the kernel to do 1238145246Sbrooks * anything useful with them. 1239145246Sbrooks */ 1240145246Sbrooks if (type > ICMP6_MAXTYPE) 1241145246Sbrooks errx(EX_DATAERR, "ICMP6 type out of range"); 1242145246Sbrooks cmd->d[type / 32] |= ( 1 << (type % 32)); 1243145246Sbrooks } 1244145246Sbrooks cmd->o.opcode = O_ICMP6TYPE; 1245145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_icmp6); 1246145246Sbrooks} 1247145246Sbrooks 1248145246Sbrooks 1249145246Sbrooksstatic void 1250145246Sbrooksprint_icmp6types(ipfw_insn_u32 *cmd) 1251145246Sbrooks{ 1252145246Sbrooks int i, j; 1253145246Sbrooks char sep= ' '; 1254145246Sbrooks 1255152923Sume printf(" ip6 icmp6types"); 1256145246Sbrooks for (i = 0; i < 7; i++) 1257145246Sbrooks for (j=0; j < 32; ++j) { 1258145246Sbrooks if ( (cmd->d[i] & (1 << (j))) == 0) 1259145246Sbrooks continue; 1260145246Sbrooks printf("%c%d", sep, (i*32 + j)); 1261145246Sbrooks sep = ','; 1262145246Sbrooks } 1263145246Sbrooks} 1264145246Sbrooks 1265145246Sbrooksstatic void 1266145246Sbrooksprint_flow6id( ipfw_insn_u32 *cmd) 1267145246Sbrooks{ 1268145246Sbrooks uint16_t i, limit = cmd->o.arg1; 1269145246Sbrooks char sep = ','; 1270145246Sbrooks 1271145246Sbrooks printf(" flow-id "); 1272145246Sbrooks for( i=0; i < limit; ++i) { 1273145246Sbrooks if (i == limit - 1) 1274145246Sbrooks sep = ' '; 1275145246Sbrooks printf("%d%c", cmd->d[i], sep); 1276145246Sbrooks } 1277145246Sbrooks} 1278145246Sbrooks 1279145246Sbrooks/* structure and define for the extension header in ipv6 */ 1280145246Sbrooksstatic struct _s_x ext6hdrcodes[] = { 1281145246Sbrooks { "frag", EXT_FRAGMENT }, 1282145246Sbrooks { "hopopt", EXT_HOPOPTS }, 1283145246Sbrooks { "route", EXT_ROUTING }, 1284149020Sbz { "dstopt", EXT_DSTOPTS }, 1285145246Sbrooks { "ah", EXT_AH }, 1286145246Sbrooks { "esp", EXT_ESP }, 1287169245Sbz { "rthdr0", EXT_RTHDR0 }, 1288169245Sbz { "rthdr2", EXT_RTHDR2 }, 1289145246Sbrooks { NULL, 0 } 1290145246Sbrooks}; 1291145246Sbrooks 1292145246Sbrooks/* fills command for the extension header filtering */ 1293187477Sluigistatic int 1294145246Sbrooksfill_ext6hdr( ipfw_insn *cmd, char *av) 1295145246Sbrooks{ 1296145246Sbrooks int tok; 1297145246Sbrooks char *s = av; 1298145246Sbrooks 1299145246Sbrooks cmd->arg1 = 0; 1300145246Sbrooks 1301145246Sbrooks while(s) { 1302145246Sbrooks av = strsep( &s, ",") ; 1303145246Sbrooks tok = match_token(ext6hdrcodes, av); 1304145246Sbrooks switch (tok) { 1305145246Sbrooks case EXT_FRAGMENT: 1306145246Sbrooks cmd->arg1 |= EXT_FRAGMENT; 1307145246Sbrooks break; 1308145246Sbrooks 1309145246Sbrooks case EXT_HOPOPTS: 1310145246Sbrooks cmd->arg1 |= EXT_HOPOPTS; 1311145246Sbrooks break; 1312145246Sbrooks 1313145246Sbrooks case EXT_ROUTING: 1314145246Sbrooks cmd->arg1 |= EXT_ROUTING; 1315145246Sbrooks break; 1316145246Sbrooks 1317149020Sbz case EXT_DSTOPTS: 1318149020Sbz cmd->arg1 |= EXT_DSTOPTS; 1319149020Sbz break; 1320149020Sbz 1321145246Sbrooks case EXT_AH: 1322145246Sbrooks cmd->arg1 |= EXT_AH; 1323145246Sbrooks break; 1324145246Sbrooks 1325145246Sbrooks case EXT_ESP: 1326145246Sbrooks cmd->arg1 |= EXT_ESP; 1327145246Sbrooks break; 1328145246Sbrooks 1329169245Sbz case EXT_RTHDR0: 1330169245Sbz cmd->arg1 |= EXT_RTHDR0; 1331169245Sbz break; 1332169245Sbz 1333169245Sbz case EXT_RTHDR2: 1334169245Sbz cmd->arg1 |= EXT_RTHDR2; 1335169245Sbz break; 1336169245Sbz 1337145246Sbrooks default: 1338145246Sbrooks errx( EX_DATAERR, "invalid option for ipv6 exten header" ); 1339145246Sbrooks break; 1340145246Sbrooks } 1341145246Sbrooks } 1342145246Sbrooks if (cmd->arg1 == 0 ) 1343145246Sbrooks return 0; 1344145246Sbrooks cmd->opcode = O_EXT_HDR; 1345145246Sbrooks cmd->len |= F_INSN_SIZE( ipfw_insn ); 1346145246Sbrooks return 1; 1347145246Sbrooks} 1348145246Sbrooks 1349187477Sluigistatic void 1350145246Sbrooksprint_ext6hdr( ipfw_insn *cmd ) 1351145246Sbrooks{ 1352145246Sbrooks char sep = ' '; 1353145246Sbrooks 1354145246Sbrooks printf(" extension header:"); 1355145246Sbrooks if (cmd->arg1 & EXT_FRAGMENT ) { 1356145246Sbrooks printf("%cfragmentation", sep); 1357145246Sbrooks sep = ','; 1358145246Sbrooks } 1359145246Sbrooks if (cmd->arg1 & EXT_HOPOPTS ) { 1360145246Sbrooks printf("%chop options", sep); 1361145246Sbrooks sep = ','; 1362145246Sbrooks } 1363145246Sbrooks if (cmd->arg1 & EXT_ROUTING ) { 1364145246Sbrooks printf("%crouting options", sep); 1365145246Sbrooks sep = ','; 1366145246Sbrooks } 1367169245Sbz if (cmd->arg1 & EXT_RTHDR0 ) { 1368169245Sbz printf("%crthdr0", sep); 1369169245Sbz sep = ','; 1370169245Sbz } 1371169245Sbz if (cmd->arg1 & EXT_RTHDR2 ) { 1372169245Sbz printf("%crthdr2", sep); 1373169245Sbz sep = ','; 1374169245Sbz } 1375149020Sbz if (cmd->arg1 & EXT_DSTOPTS ) { 1376149020Sbz printf("%cdestination options", sep); 1377149020Sbz sep = ','; 1378149020Sbz } 1379145246Sbrooks if (cmd->arg1 & EXT_AH ) { 1380145246Sbrooks printf("%cauthentication header", sep); 1381145246Sbrooks sep = ','; 1382145246Sbrooks } 1383145246Sbrooks if (cmd->arg1 & EXT_ESP ) { 1384145246Sbrooks printf("%cencapsulated security payload", sep); 1385145246Sbrooks } 1386145246Sbrooks} 1387145246Sbrooks 138898943Sluigi/* 138998943Sluigi * show_ipfw() prints the body of an ipfw rule. 139098943Sluigi * Because the standard rule has at least proto src_ip dst_ip, we use 139198943Sluigi * a helper function to produce these entries if not provided explicitly. 1392102087Sluigi * The first argument is the list of fields we have, the second is 1393102087Sluigi * the list of fields we want to be printed. 1394101978Sluigi * 1395102087Sluigi * Special cases if we have provided a MAC header: 1396102087Sluigi * + if the rule does not contain IP addresses/ports, do not print them; 1397102087Sluigi * + if the rule does not contain an IP proto, print "all" instead of "ip"; 1398102087Sluigi * 1399102087Sluigi * Once we have 'have_options', IP header fields are printed as options. 140098943Sluigi */ 1401101978Sluigi#define HAVE_PROTO 0x0001 1402101978Sluigi#define HAVE_SRCIP 0x0002 1403101978Sluigi#define HAVE_DSTIP 0x0004 1404169139Smaxim#define HAVE_PROTO4 0x0008 1405169139Smaxim#define HAVE_PROTO6 0x0010 1406102087Sluigi#define HAVE_OPTIONS 0x8000 140798943Sluigi 1408101978Sluigi#define HAVE_IP (HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP) 140998943Sluigistatic void 1410187477Sluigishow_prerequisites(int *flags, int want, int cmd __unused) 141198943Sluigi{ 1412187764Sluigi if (co.comment_only) 1413123495Sluigi return; 1414102087Sluigi if ( (*flags & HAVE_IP) == HAVE_IP) 1415102087Sluigi *flags |= HAVE_OPTIONS; 1416102087Sluigi 1417102087Sluigi if ( !(*flags & HAVE_OPTIONS)) { 1418187477Sluigi if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) { 1419146894Smlaier if ( (*flags & HAVE_PROTO4)) 1420146894Smlaier printf(" ip4"); 1421146894Smlaier else if ( (*flags & HAVE_PROTO6)) 1422146894Smlaier printf(" ip6"); 1423146894Smlaier else 1424146894Smlaier printf(" ip"); 1425187477Sluigi } 1426102087Sluigi if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP)) 1427102087Sluigi printf(" from any"); 1428102087Sluigi if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP)) 1429102087Sluigi printf(" to any"); 1430102087Sluigi } 143198943Sluigi *flags |= want; 143298943Sluigi} 143398943Sluigi 143498943Sluigistatic void 1435112189Smaximshow_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth) 143698943Sluigi{ 1437107291Skeramida static int twidth = 0; 143898943Sluigi int l; 1439158879Soleg ipfw_insn *cmd, *tagptr = NULL; 1440187477Sluigi const char *comment = NULL; /* ptr to comment if we have one */ 144198943Sluigi int proto = 0; /* default */ 144298943Sluigi int flags = 0; /* prerequisites */ 144398943Sluigi ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */ 1444136071Sgreen ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */ 144598943Sluigi int or_block = 0; /* we are in an or block */ 1446117328Sluigi uint32_t set_disable; 144798943Sluigi 1448115793Sticso bcopy(&rule->next_rule, &set_disable, sizeof(set_disable)); 1449101628Sluigi 1450101628Sluigi if (set_disable & (1 << rule->set)) { /* disabled */ 1451187764Sluigi if (!co.show_sets) 1452101628Sluigi return; 1453101628Sluigi else 1454101628Sluigi printf("# DISABLED "); 1455101628Sluigi } 145698943Sluigi printf("%05u ", rule->rulenum); 145798943Sluigi 1458117469Sluigi if (pcwidth>0 || bcwidth>0) 1459115793Sticso printf("%*llu %*llu ", pcwidth, align_uint64(&rule->pcnt), 1460115793Sticso bcwidth, align_uint64(&rule->bcnt)); 146198943Sluigi 1462187764Sluigi if (co.do_time == 2) 1463117472Sluigi printf("%10u ", rule->timestamp); 1464187764Sluigi else if (co.do_time == 1) { 1465107291Skeramida char timestr[30]; 1466107291Skeramida time_t t = (time_t)0; 1467107291Skeramida 1468107291Skeramida if (twidth == 0) { 1469107291Skeramida strcpy(timestr, ctime(&t)); 1470107291Skeramida *strchr(timestr, '\n') = '\0'; 1471107291Skeramida twidth = strlen(timestr); 1472107291Skeramida } 147398943Sluigi if (rule->timestamp) { 1474107291Skeramida t = _long_to_time(rule->timestamp); 147598943Sluigi 147698943Sluigi strcpy(timestr, ctime(&t)); 147798943Sluigi *strchr(timestr, '\n') = '\0'; 147898943Sluigi printf("%s ", timestr); 147998943Sluigi } else { 1480107291Skeramida printf("%*s", twidth, " "); 148198943Sluigi } 148298943Sluigi } 148398943Sluigi 1484187764Sluigi if (co.show_sets) 1485101628Sluigi printf("set %d ", rule->set); 1486101628Sluigi 148798943Sluigi /* 1488107289Sluigi * print the optional "match probability" 1489107289Sluigi */ 1490107289Sluigi if (rule->cmd_len > 0) { 1491107289Sluigi cmd = rule->cmd ; 1492107289Sluigi if (cmd->opcode == O_PROB) { 1493107289Sluigi ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd; 1494107289Sluigi double d = 1.0 * p->d[0]; 1495107289Sluigi 1496107289Sluigi d = (d / 0x7fffffff); 1497107289Sluigi printf("prob %f ", d); 1498107289Sluigi } 1499107289Sluigi } 1500107289Sluigi 1501107289Sluigi /* 150298943Sluigi * first print actions 150398943Sluigi */ 150498943Sluigi for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule); 150598943Sluigi l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) { 150698943Sluigi switch(cmd->opcode) { 150798943Sluigi case O_CHECK_STATE: 150898943Sluigi printf("check-state"); 1509102087Sluigi flags = HAVE_IP; /* avoid printing anything else */ 151098943Sluigi break; 151198943Sluigi 151298943Sluigi case O_ACCEPT: 151398943Sluigi printf("allow"); 151498943Sluigi break; 151598943Sluigi 151698943Sluigi case O_COUNT: 151798943Sluigi printf("count"); 151898943Sluigi break; 151998943Sluigi 152098943Sluigi case O_DENY: 152198943Sluigi printf("deny"); 152298943Sluigi break; 152398943Sluigi 152499475Sluigi case O_REJECT: 152599475Sluigi if (cmd->arg1 == ICMP_REJECT_RST) 152699475Sluigi printf("reset"); 152799475Sluigi else if (cmd->arg1 == ICMP_UNREACH_HOST) 152899475Sluigi printf("reject"); 152999475Sluigi else 153099475Sluigi print_reject_code(cmd->arg1); 153199475Sluigi break; 153299475Sluigi 1533149020Sbz case O_UNREACH6: 1534149020Sbz if (cmd->arg1 == ICMP6_UNREACH_RST) 1535149020Sbz printf("reset6"); 1536149020Sbz else 1537149020Sbz print_unreach6_code(cmd->arg1); 1538149020Sbz break; 1539149020Sbz 1540159636Soleg case O_SKIPTO: 1541159636Soleg PRINT_UINT_ARG("skipto ", cmd->arg1); 154298943Sluigi break; 154398943Sluigi 154498943Sluigi case O_PIPE: 1545159636Soleg PRINT_UINT_ARG("pipe ", cmd->arg1); 1546159636Soleg break; 1547159636Soleg 154898943Sluigi case O_QUEUE: 1549159636Soleg PRINT_UINT_ARG("queue ", cmd->arg1); 1550159636Soleg break; 1551159636Soleg 155298943Sluigi case O_DIVERT: 1553159636Soleg PRINT_UINT_ARG("divert ", cmd->arg1); 1554159636Soleg break; 1555159636Soleg 155698943Sluigi case O_TEE: 1557159636Soleg PRINT_UINT_ARG("tee ", cmd->arg1); 1558159636Soleg break; 1559159636Soleg 1560141351Sglebius case O_NETGRAPH: 1561159636Soleg PRINT_UINT_ARG("netgraph ", cmd->arg1); 1562159636Soleg break; 1563159636Soleg 1564141351Sglebius case O_NGTEE: 1565159636Soleg PRINT_UINT_ARG("ngtee ", cmd->arg1); 1566159636Soleg break; 1567141351Sglebius 156898943Sluigi case O_FORWARD_IP: 156998943Sluigi { 157098943Sluigi ipfw_insn_sa *s = (ipfw_insn_sa *)cmd; 157198943Sluigi 1572161424Sjulian if (s->sa.sin_addr.s_addr == INADDR_ANY) { 1573161424Sjulian printf("fwd tablearg"); 1574161424Sjulian } else { 1575161424Sjulian printf("fwd %s", inet_ntoa(s->sa.sin_addr)); 1576161424Sjulian } 157798943Sluigi if (s->sa.sin_port) 1578103241Sluigi printf(",%d", s->sa.sin_port); 157998943Sluigi } 158098943Sluigi break; 158198943Sluigi 158298943Sluigi case O_LOG: /* O_LOG is printed last */ 158398943Sluigi logptr = (ipfw_insn_log *)cmd; 158498943Sluigi break; 158598943Sluigi 1586136071Sgreen case O_ALTQ: /* O_ALTQ is printed after O_LOG */ 1587136071Sgreen altqptr = (ipfw_insn_altq *)cmd; 1588136071Sgreen break; 1589136071Sgreen 1590158879Soleg case O_TAG: 1591158879Soleg tagptr = cmd; 1592158879Soleg break; 1593158879Soleg 1594165648Spiso case O_NAT: 1595176517Spiso PRINT_UINT_ARG("nat ", cmd->arg1); 1596165648Spiso break; 1597165648Spiso 1598178888Sjulian case O_SETFIB: 1599178888Sjulian PRINT_UINT_ARG("setfib ", cmd->arg1); 1600178888Sjulian break; 1601178888Sjulian 160298943Sluigi default: 1603136071Sgreen printf("** unrecognized action %d len %d ", 160498943Sluigi cmd->opcode, cmd->len); 160598943Sluigi } 160698943Sluigi } 160798943Sluigi if (logptr) { 160898943Sluigi if (logptr->max_log > 0) 160999909Sluigi printf(" log logamount %d", logptr->max_log); 161098943Sluigi else 161199909Sluigi printf(" log"); 161298943Sluigi } 1613136071Sgreen if (altqptr) { 1614136071Sgreen const char *qname; 1615102087Sluigi 1616136071Sgreen qname = altq_qid_to_name(altqptr->qid); 1617136071Sgreen if (qname == NULL) 1618136071Sgreen printf(" altq ?<%u>", altqptr->qid); 1619136071Sgreen else 1620136071Sgreen printf(" altq %s", qname); 1621136071Sgreen } 1622158879Soleg if (tagptr) { 1623158879Soleg if (tagptr->len & F_NOT) 1624159636Soleg PRINT_UINT_ARG(" untag ", tagptr->arg1); 1625158879Soleg else 1626159636Soleg PRINT_UINT_ARG(" tag ", tagptr->arg1); 1627158879Soleg } 1628136071Sgreen 162998943Sluigi /* 1630102087Sluigi * then print the body. 163198943Sluigi */ 1632146894Smlaier for (l = rule->act_ofs, cmd = rule->cmd ; 1633146894Smlaier l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 1634146894Smlaier if ((cmd->len & F_OR) || (cmd->len & F_NOT)) 1635146894Smlaier continue; 1636146894Smlaier if (cmd->opcode == O_IP4) { 1637146894Smlaier flags |= HAVE_PROTO4; 1638146894Smlaier break; 1639146894Smlaier } else if (cmd->opcode == O_IP6) { 1640146894Smlaier flags |= HAVE_PROTO6; 1641146894Smlaier break; 1642146894Smlaier } 1643146894Smlaier } 1644102087Sluigi if (rule->_pad & 1) { /* empty rules before options */ 1645187764Sluigi if (!co.do_compact) { 1646146894Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1647146894Smlaier printf(" from any to any"); 1648146894Smlaier } 1649102087Sluigi flags |= HAVE_IP | HAVE_OPTIONS; 1650102087Sluigi } 1651102087Sluigi 1652187764Sluigi if (co.comment_only) 1653123495Sluigi comment = "..."; 1654123495Sluigi 165598943Sluigi for (l = rule->act_ofs, cmd = rule->cmd ; 165698943Sluigi l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) { 165799475Sluigi /* useful alias */ 165899475Sluigi ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd; 165998943Sluigi 1660187764Sluigi if (co.comment_only) { 1661123495Sluigi if (cmd->opcode != O_NOP) 1662123495Sluigi continue; 1663123495Sluigi printf(" // %s\n", (char *)(cmd + 1)); 1664123495Sluigi return; 1665123495Sluigi } 1666123495Sluigi 1667102087Sluigi show_prerequisites(&flags, 0, cmd->opcode); 1668102087Sluigi 166998943Sluigi switch(cmd->opcode) { 1670117577Sluigi case O_PROB: 1671107289Sluigi break; /* done already */ 1672107289Sluigi 167398943Sluigi case O_PROBE_STATE: 167498943Sluigi break; /* no need to print anything here */ 167598943Sluigi 167698943Sluigi case O_IP_SRC: 1677130281Sru case O_IP_SRC_LOOKUP: 167898943Sluigi case O_IP_SRC_MASK: 167998943Sluigi case O_IP_SRC_ME: 168098943Sluigi case O_IP_SRC_SET: 1681102087Sluigi show_prerequisites(&flags, HAVE_PROTO, 0); 168298943Sluigi if (!(flags & HAVE_SRCIP)) 168398943Sluigi printf(" from"); 168498943Sluigi if ((cmd->len & F_OR) && !or_block) 168598943Sluigi printf(" {"); 1686102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1687102087Sluigi (flags & HAVE_OPTIONS) ? " src-ip" : ""); 168898943Sluigi flags |= HAVE_SRCIP; 168998943Sluigi break; 169098943Sluigi 169198943Sluigi case O_IP_DST: 1692130281Sru case O_IP_DST_LOOKUP: 169398943Sluigi case O_IP_DST_MASK: 169498943Sluigi case O_IP_DST_ME: 169598943Sluigi case O_IP_DST_SET: 1696102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 169798943Sluigi if (!(flags & HAVE_DSTIP)) 169898943Sluigi printf(" to"); 169998943Sluigi if ((cmd->len & F_OR) && !or_block) 170098943Sluigi printf(" {"); 1701102087Sluigi print_ip((ipfw_insn_ip *)cmd, 1702102087Sluigi (flags & HAVE_OPTIONS) ? " dst-ip" : ""); 170398943Sluigi flags |= HAVE_DSTIP; 170498943Sluigi break; 170598943Sluigi 1706145246Sbrooks case O_IP6_SRC: 1707145246Sbrooks case O_IP6_SRC_MASK: 1708145246Sbrooks case O_IP6_SRC_ME: 1709147105Smlaier show_prerequisites(&flags, HAVE_PROTO, 0); 1710145246Sbrooks if (!(flags & HAVE_SRCIP)) 1711145246Sbrooks printf(" from"); 1712145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1713145246Sbrooks printf(" {"); 1714145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1715145246Sbrooks (flags & HAVE_OPTIONS) ? " src-ip6" : ""); 1716145246Sbrooks flags |= HAVE_SRCIP | HAVE_PROTO; 1717145246Sbrooks break; 1718145246Sbrooks 1719145246Sbrooks case O_IP6_DST: 1720145246Sbrooks case O_IP6_DST_MASK: 1721145246Sbrooks case O_IP6_DST_ME: 1722145246Sbrooks show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1723145246Sbrooks if (!(flags & HAVE_DSTIP)) 1724145246Sbrooks printf(" to"); 1725145246Sbrooks if ((cmd->len & F_OR) && !or_block) 1726145246Sbrooks printf(" {"); 1727145246Sbrooks print_ip6((ipfw_insn_ip6 *)cmd, 1728145246Sbrooks (flags & HAVE_OPTIONS) ? " dst-ip6" : ""); 1729145246Sbrooks flags |= HAVE_DSTIP; 1730145246Sbrooks break; 1731145246Sbrooks 1732145246Sbrooks case O_FLOW6ID: 1733145246Sbrooks print_flow6id( (ipfw_insn_u32 *) cmd ); 1734145246Sbrooks flags |= HAVE_OPTIONS; 1735145246Sbrooks break; 1736145246Sbrooks 173798943Sluigi case O_IP_DSTPORT: 1738102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 173998943Sluigi case O_IP_SRCPORT: 1740102087Sluigi show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0); 1741101641Sluigi if ((cmd->len & F_OR) && !or_block) 1742101641Sluigi printf(" {"); 1743172306Smaxim if (cmd->len & F_NOT) 1744172306Smaxim printf(" not"); 1745102087Sluigi print_newports((ipfw_insn_u16 *)cmd, proto, 1746102087Sluigi (flags & HAVE_OPTIONS) ? cmd->opcode : 0); 174798943Sluigi break; 174898943Sluigi 174998943Sluigi case O_PROTO: { 1750145246Sbrooks struct protoent *pe = NULL; 175198943Sluigi 175298943Sluigi if ((cmd->len & F_OR) && !or_block) 175398943Sluigi printf(" {"); 175498943Sluigi if (cmd->len & F_NOT) 175598943Sluigi printf(" not"); 175698943Sluigi proto = cmd->arg1; 1757145567Sbrooks pe = getprotobynumber(cmd->arg1); 1758146894Smlaier if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) && 1759146894Smlaier !(flags & HAVE_PROTO)) 1760146894Smlaier show_prerequisites(&flags, 1761146894Smlaier HAVE_IP | HAVE_OPTIONS, 0); 1762102087Sluigi if (flags & HAVE_OPTIONS) 1763102087Sluigi printf(" proto"); 176498943Sluigi if (pe) 176598943Sluigi printf(" %s", pe->p_name); 176698943Sluigi else 176798943Sluigi printf(" %u", cmd->arg1); 176898943Sluigi } 176998943Sluigi flags |= HAVE_PROTO; 177098943Sluigi break; 1771106505Smaxim 177298943Sluigi default: /*options ... */ 1773146894Smlaier if (!(cmd->len & (F_OR|F_NOT))) 1774146894Smlaier if (((cmd->opcode == O_IP6) && 1775146894Smlaier (flags & HAVE_PROTO6)) || 1776146894Smlaier ((cmd->opcode == O_IP4) && 1777146894Smlaier (flags & HAVE_PROTO4))) 1778146894Smlaier break; 1779102087Sluigi show_prerequisites(&flags, HAVE_IP | HAVE_OPTIONS, 0); 178098943Sluigi if ((cmd->len & F_OR) && !or_block) 178198943Sluigi printf(" {"); 178298943Sluigi if (cmd->len & F_NOT && cmd->opcode != O_IN) 178398943Sluigi printf(" not"); 178498943Sluigi switch(cmd->opcode) { 1785169139Smaxim case O_MACADDR2: { 1786169139Smaxim ipfw_insn_mac *m = (ipfw_insn_mac *)cmd; 1787169139Smaxim 1788169139Smaxim printf(" MAC"); 1789169139Smaxim print_mac(m->addr, m->mask); 1790169139Smaxim print_mac(m->addr + 6, m->mask + 6); 1791169139Smaxim } 1792169139Smaxim break; 1793169139Smaxim 1794169139Smaxim case O_MAC_TYPE: 1795169139Smaxim print_newports((ipfw_insn_u16 *)cmd, 1796169139Smaxim IPPROTO_ETHERTYPE, cmd->opcode); 1797169139Smaxim break; 1798169139Smaxim 1799169139Smaxim 180098943Sluigi case O_FRAG: 180198943Sluigi printf(" frag"); 180298943Sluigi break; 180398943Sluigi 1804178888Sjulian case O_FIB: 1805178888Sjulian printf(" fib %u", cmd->arg1 ); 1806178888Sjulian break; 1807178888Sjulian 180898943Sluigi case O_IN: 180998943Sluigi printf(cmd->len & F_NOT ? " out" : " in"); 181098943Sluigi break; 181198943Sluigi 1812136073Sgreen case O_DIVERTED: 1813136073Sgreen switch (cmd->arg1) { 1814136073Sgreen case 3: 1815136073Sgreen printf(" diverted"); 1816136073Sgreen break; 1817136073Sgreen case 1: 1818136073Sgreen printf(" diverted-loopback"); 1819136073Sgreen break; 1820136073Sgreen case 2: 1821136073Sgreen printf(" diverted-output"); 1822136073Sgreen break; 1823136073Sgreen default: 1824136073Sgreen printf(" diverted-?<%u>", cmd->arg1); 1825136073Sgreen break; 1826136073Sgreen } 1827136073Sgreen break; 1828136073Sgreen 182998943Sluigi case O_LAYER2: 183098943Sluigi printf(" layer2"); 183198943Sluigi break; 183298943Sluigi case O_XMIT: 183398943Sluigi case O_RECV: 1834140423Sglebius case O_VIA: 1835140423Sglebius { 1836117469Sluigi char const *s; 183798943Sluigi ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd; 183898943Sluigi 183998943Sluigi if (cmd->opcode == O_XMIT) 184098943Sluigi s = "xmit"; 184198943Sluigi else if (cmd->opcode == O_RECV) 184298943Sluigi s = "recv"; 1843117469Sluigi else /* if (cmd->opcode == O_VIA) */ 184498943Sluigi s = "via"; 184598943Sluigi if (cmdif->name[0] == '\0') 184699475Sluigi printf(" %s %s", s, 184799475Sluigi inet_ntoa(cmdif->p.ip)); 1848140423Sglebius else 1849140423Sglebius printf(" %s %s", s, cmdif->name); 1850140423Sglebius 185198943Sluigi break; 1852140423Sglebius } 185398943Sluigi case O_IPID: 1854116690Sluigi if (F_LEN(cmd) == 1) 1855116690Sluigi printf(" ipid %u", cmd->arg1 ); 1856116690Sluigi else 1857116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1858116690Sluigi O_IPID); 185998943Sluigi break; 186098943Sluigi 186198943Sluigi case O_IPTTL: 1862116690Sluigi if (F_LEN(cmd) == 1) 1863116690Sluigi printf(" ipttl %u", cmd->arg1 ); 1864116690Sluigi else 1865116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1866116690Sluigi O_IPTTL); 186798943Sluigi break; 186898943Sluigi 186998943Sluigi case O_IPVER: 187098943Sluigi printf(" ipver %u", cmd->arg1 ); 187198943Sluigi break; 187298943Sluigi 187399475Sluigi case O_IPPRECEDENCE: 187499475Sluigi printf(" ipprecedence %u", (cmd->arg1) >> 5 ); 187599475Sluigi break; 187699475Sluigi 187798943Sluigi case O_IPLEN: 1878116690Sluigi if (F_LEN(cmd) == 1) 1879116690Sluigi printf(" iplen %u", cmd->arg1 ); 1880116690Sluigi else 1881116690Sluigi print_newports((ipfw_insn_u16 *)cmd, 0, 1882116690Sluigi O_IPLEN); 188398943Sluigi break; 188498943Sluigi 1885101116Sluigi case O_IPOPT: 188698943Sluigi print_flags("ipoptions", cmd, f_ipopts); 188798943Sluigi break; 188898943Sluigi 188999475Sluigi case O_IPTOS: 189099475Sluigi print_flags("iptos", cmd, f_iptos); 189199475Sluigi break; 189299475Sluigi 189399475Sluigi case O_ICMPTYPE: 189499475Sluigi print_icmptypes((ipfw_insn_u32 *)cmd); 189599475Sluigi break; 189699475Sluigi 189798943Sluigi case O_ESTAB: 189898943Sluigi printf(" established"); 189998943Sluigi break; 190098943Sluigi 1901136075Sgreen case O_TCPDATALEN: 1902136075Sgreen if (F_LEN(cmd) == 1) 1903136075Sgreen printf(" tcpdatalen %u", cmd->arg1 ); 1904136075Sgreen else 1905136075Sgreen print_newports((ipfw_insn_u16 *)cmd, 0, 1906136075Sgreen O_TCPDATALEN); 1907136075Sgreen break; 1908136075Sgreen 190998943Sluigi case O_TCPFLAGS: 191098943Sluigi print_flags("tcpflags", cmd, f_tcpflags); 191198943Sluigi break; 191298943Sluigi 191398943Sluigi case O_TCPOPTS: 191498943Sluigi print_flags("tcpoptions", cmd, f_tcpopts); 191598943Sluigi break; 191698943Sluigi 191798943Sluigi case O_TCPWIN: 191898943Sluigi printf(" tcpwin %d", ntohs(cmd->arg1)); 191998943Sluigi break; 192098943Sluigi 192198943Sluigi case O_TCPACK: 192298943Sluigi printf(" tcpack %d", ntohl(cmd32->d[0])); 192398943Sluigi break; 192498943Sluigi 192598943Sluigi case O_TCPSEQ: 192698943Sluigi printf(" tcpseq %d", ntohl(cmd32->d[0])); 192798943Sluigi break; 192898943Sluigi 192998943Sluigi case O_UID: 193098943Sluigi { 193198943Sluigi struct passwd *pwd = getpwuid(cmd32->d[0]); 193298943Sluigi 193398943Sluigi if (pwd) 193498943Sluigi printf(" uid %s", pwd->pw_name); 193598943Sluigi else 193698943Sluigi printf(" uid %u", cmd32->d[0]); 193798943Sluigi } 193898943Sluigi break; 193998943Sluigi 194098943Sluigi case O_GID: 194198943Sluigi { 194298943Sluigi struct group *grp = getgrgid(cmd32->d[0]); 194398943Sluigi 194498943Sluigi if (grp) 194598943Sluigi printf(" gid %s", grp->gr_name); 194698943Sluigi else 194798943Sluigi printf(" gid %u", cmd32->d[0]); 194898943Sluigi } 194998943Sluigi break; 195098943Sluigi 1951133600Scsjp case O_JAIL: 1952133600Scsjp printf(" jail %d", cmd32->d[0]); 1953133600Scsjp break; 1954133600Scsjp 1955112250Scjc case O_VERREVPATH: 1956112250Scjc printf(" verrevpath"); 1957112250Scjc break; 1958116919Sluigi 1959128575Sandre case O_VERSRCREACH: 1960128575Sandre printf(" versrcreach"); 1961128575Sandre break; 1962128575Sandre 1963133387Sandre case O_ANTISPOOF: 1964133387Sandre printf(" antispoof"); 1965133387Sandre break; 1966133387Sandre 1967117241Sluigi case O_IPSEC: 1968117241Sluigi printf(" ipsec"); 1969117241Sluigi break; 1970117241Sluigi 1971117469Sluigi case O_NOP: 1972117626Sluigi comment = (char *)(cmd + 1); 1973117469Sluigi break; 1974117469Sluigi 197598943Sluigi case O_KEEP_STATE: 197698943Sluigi printf(" keep-state"); 197798943Sluigi break; 197898943Sluigi 1979159636Soleg case O_LIMIT: { 198098943Sluigi struct _s_x *p = limit_masks; 198198943Sluigi ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 1982117328Sluigi uint8_t x = c->limit_mask; 1983117469Sluigi char const *comma = " "; 198498943Sluigi 198598943Sluigi printf(" limit"); 1986117577Sluigi for (; p->x != 0 ; p++) 198799909Sluigi if ((x & p->x) == p->x) { 198898943Sluigi x &= ~p->x; 198998943Sluigi printf("%s%s", comma, p->s); 199098943Sluigi comma = ","; 199198943Sluigi } 1992159636Soleg PRINT_UINT_ARG(" ", c->conn_limit); 199398943Sluigi break; 1994159636Soleg } 199598943Sluigi 1996146894Smlaier case O_IP6: 1997152923Sume printf(" ip6"); 1998145246Sbrooks break; 1999145246Sbrooks 2000146894Smlaier case O_IP4: 2001152923Sume printf(" ip4"); 2002146894Smlaier break; 2003146894Smlaier 2004145246Sbrooks case O_ICMP6TYPE: 2005145246Sbrooks print_icmp6types((ipfw_insn_u32 *)cmd); 2006145246Sbrooks break; 2007145246Sbrooks 2008145246Sbrooks case O_EXT_HDR: 2009145246Sbrooks print_ext6hdr( (ipfw_insn *) cmd ); 2010145246Sbrooks break; 2011145246Sbrooks 2012158879Soleg case O_TAGGED: 2013158879Soleg if (F_LEN(cmd) == 1) 2014159636Soleg PRINT_UINT_ARG(" tagged ", cmd->arg1); 2015158879Soleg else 2016159636Soleg print_newports((ipfw_insn_u16 *)cmd, 0, 2017159636Soleg O_TAGGED); 2018158879Soleg break; 2019158879Soleg 202098943Sluigi default: 202198943Sluigi printf(" [opcode %d len %d]", 202298943Sluigi cmd->opcode, cmd->len); 202398943Sluigi } 202498943Sluigi } 202598943Sluigi if (cmd->len & F_OR) { 202698943Sluigi printf(" or"); 202798943Sluigi or_block = 1; 202898943Sluigi } else if (or_block) { 202998943Sluigi printf(" }"); 203098943Sluigi or_block = 0; 203198943Sluigi } 203298943Sluigi } 2033102087Sluigi show_prerequisites(&flags, HAVE_IP, 0); 2034117626Sluigi if (comment) 2035117626Sluigi printf(" // %s", comment); 203698943Sluigi printf("\n"); 203798943Sluigi} 203898943Sluigi 203998943Sluigistatic void 2040112189Smaximshow_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth) 204198943Sluigi{ 204298943Sluigi struct protoent *pe; 204398943Sluigi struct in_addr a; 2044115793Sticso uint16_t rulenum; 2045159160Smlaier char buf[INET6_ADDRSTRLEN]; 204698943Sluigi 2047187764Sluigi if (!co.do_expired) { 204898943Sluigi if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT)) 204998943Sluigi return; 205098943Sluigi } 2051115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2052117328Sluigi printf("%05d", rulenum); 2053117469Sluigi if (pcwidth>0 || bcwidth>0) 2054117328Sluigi printf(" %*llu %*llu (%ds)", pcwidth, 2055117328Sluigi align_uint64(&d->pcnt), bcwidth, 2056117328Sluigi align_uint64(&d->bcnt), d->expire); 205798943Sluigi switch (d->dyn_type) { 205898943Sluigi case O_LIMIT_PARENT: 205998943Sluigi printf(" PARENT %d", d->count); 206098943Sluigi break; 206198943Sluigi case O_LIMIT: 206298943Sluigi printf(" LIMIT"); 206398943Sluigi break; 206498943Sluigi case O_KEEP_STATE: /* bidir, no mask */ 2065106505Smaxim printf(" STATE"); 206698943Sluigi break; 206798943Sluigi } 206898943Sluigi 206998943Sluigi if ((pe = getprotobynumber(d->id.proto)) != NULL) 207098943Sluigi printf(" %s", pe->p_name); 207198943Sluigi else 207298943Sluigi printf(" proto %u", d->id.proto); 207398943Sluigi 2074159160Smlaier if (d->id.addr_type == 4) { 2075159160Smlaier a.s_addr = htonl(d->id.src_ip); 2076159160Smlaier printf(" %s %d", inet_ntoa(a), d->id.src_port); 207798943Sluigi 2078159160Smlaier a.s_addr = htonl(d->id.dst_ip); 2079159160Smlaier printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port); 2080159160Smlaier } else if (d->id.addr_type == 6) { 2081159160Smlaier printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf, 2082159160Smlaier sizeof(buf)), d->id.src_port); 2083159160Smlaier printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf, 2084159160Smlaier sizeof(buf)), d->id.dst_port); 2085159160Smlaier } else 2086159160Smlaier printf(" UNKNOWN <-> UNKNOWN\n"); 2087159160Smlaier 208898943Sluigi printf("\n"); 208998943Sluigi} 209098943Sluigi 2091117469Sluigistatic int 209298943Sluigisort_q(const void *pa, const void *pb) 209398943Sluigi{ 2094187764Sluigi int rev = (co.do_sort < 0); 2095187764Sluigi int field = rev ? -co.do_sort : co.do_sort; 209698943Sluigi long long res = 0; 209798943Sluigi const struct dn_flow_queue *a = pa; 209898943Sluigi const struct dn_flow_queue *b = pb; 209998943Sluigi 210098943Sluigi switch (field) { 210198943Sluigi case 1: /* pkts */ 210298943Sluigi res = a->len - b->len; 210398943Sluigi break; 210498943Sluigi case 2: /* bytes */ 210598943Sluigi res = a->len_bytes - b->len_bytes; 210698943Sluigi break; 210798943Sluigi 210898943Sluigi case 3: /* tot pkts */ 210998943Sluigi res = a->tot_pkts - b->tot_pkts; 211098943Sluigi break; 211198943Sluigi 211298943Sluigi case 4: /* tot bytes */ 211398943Sluigi res = a->tot_bytes - b->tot_bytes; 211498943Sluigi break; 211598943Sluigi } 211698943Sluigi if (res < 0) 211798943Sluigi res = -1; 211898943Sluigi if (res > 0) 211998943Sluigi res = 1; 212098943Sluigi return (int)(rev ? res : -res); 212198943Sluigi} 212298943Sluigi 212398943Sluigistatic void 212498943Sluigilist_queues(struct dn_flow_set *fs, struct dn_flow_queue *q) 212598943Sluigi{ 212698943Sluigi int l; 2127145246Sbrooks int index_printed, indexes = 0; 2128145246Sbrooks char buff[255]; 2129145246Sbrooks struct protoent *pe; 213098943Sluigi 213198943Sluigi if (fs->rq_elements == 0) 213298943Sluigi return; 213398943Sluigi 2134187764Sluigi if (co.do_sort != 0) 213598943Sluigi heapsort(q, fs->rq_elements, sizeof *q, sort_q); 2136145246Sbrooks 2137145246Sbrooks /* Print IPv4 flows */ 2138145246Sbrooks index_printed = 0; 213998943Sluigi for (l = 0; l < fs->rq_elements; l++) { 214098943Sluigi struct in_addr ina; 214198943Sluigi 2142145246Sbrooks /* XXX: Should check for IPv4 flows */ 2143145246Sbrooks if (IS_IP6_FLOW_ID(&(q[l].id))) 2144145246Sbrooks continue; 2145145246Sbrooks 2146145246Sbrooks if (!index_printed) { 2147145246Sbrooks index_printed = 1; 2148145246Sbrooks if (indexes > 0) /* currently a no-op */ 2149145246Sbrooks printf("\n"); 2150145246Sbrooks indexes++; 2151145246Sbrooks printf(" " 2152145246Sbrooks "mask: 0x%02x 0x%08x/0x%04x -> 0x%08x/0x%04x\n", 2153145246Sbrooks fs->flow_mask.proto, 2154145246Sbrooks fs->flow_mask.src_ip, fs->flow_mask.src_port, 2155145246Sbrooks fs->flow_mask.dst_ip, fs->flow_mask.dst_port); 2156145246Sbrooks 2157145246Sbrooks printf("BKT Prot ___Source IP/port____ " 2158145246Sbrooks "____Dest. IP/port____ " 2159145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2160145246Sbrooks } 2161145246Sbrooks 216298943Sluigi printf("%3d ", q[l].hash_slot); 216398943Sluigi pe = getprotobynumber(q[l].id.proto); 216498943Sluigi if (pe) 216598943Sluigi printf("%-4s ", pe->p_name); 216698943Sluigi else 216798943Sluigi printf("%4u ", q[l].id.proto); 2168145246Sbrooks ina.s_addr = htonl(q[l].id.src_ip); 216998943Sluigi printf("%15s/%-5d ", 217098943Sluigi inet_ntoa(ina), q[l].id.src_port); 217198943Sluigi ina.s_addr = htonl(q[l].id.dst_ip); 217298943Sluigi printf("%15s/%-5d ", 217398943Sluigi inet_ntoa(ina), q[l].id.dst_port); 217498943Sluigi printf("%4qu %8qu %2u %4u %3u\n", 217598943Sluigi q[l].tot_pkts, q[l].tot_bytes, 217698943Sluigi q[l].len, q[l].len_bytes, q[l].drops); 2177187764Sluigi if (co.verbose) 217898943Sluigi printf(" S %20qd F %20qd\n", 217998943Sluigi q[l].S, q[l].F); 218098943Sluigi } 2181145246Sbrooks 2182145246Sbrooks /* Print IPv6 flows */ 2183145246Sbrooks index_printed = 0; 2184145246Sbrooks for (l = 0; l < fs->rq_elements; l++) { 2185145246Sbrooks if (!IS_IP6_FLOW_ID(&(q[l].id))) 2186145246Sbrooks continue; 2187145246Sbrooks 2188145246Sbrooks if (!index_printed) { 2189145246Sbrooks index_printed = 1; 2190145246Sbrooks if (indexes > 0) 2191145246Sbrooks printf("\n"); 2192145246Sbrooks indexes++; 2193145246Sbrooks printf("\n mask: proto: 0x%02x, flow_id: 0x%08x, ", 2194145246Sbrooks fs->flow_mask.proto, fs->flow_mask.flow_id6); 2195145246Sbrooks inet_ntop(AF_INET6, &(fs->flow_mask.src_ip6), 2196145246Sbrooks buff, sizeof(buff)); 2197145246Sbrooks printf("%s/0x%04x -> ", buff, fs->flow_mask.src_port); 2198145246Sbrooks inet_ntop( AF_INET6, &(fs->flow_mask.dst_ip6), 2199145246Sbrooks buff, sizeof(buff) ); 2200145246Sbrooks printf("%s/0x%04x\n", buff, fs->flow_mask.dst_port); 2201145246Sbrooks 2202145246Sbrooks printf("BKT ___Prot___ _flow-id_ " 2203145246Sbrooks "______________Source IPv6/port_______________ " 2204145246Sbrooks "_______________Dest. IPv6/port_______________ " 2205145246Sbrooks "Tot_pkt/bytes Pkt/Byte Drp\n"); 2206145246Sbrooks } 2207145246Sbrooks printf("%3d ", q[l].hash_slot); 2208145246Sbrooks pe = getprotobynumber(q[l].id.proto); 2209145246Sbrooks if (pe != NULL) 2210145246Sbrooks printf("%9s ", pe->p_name); 2211145246Sbrooks else 2212145246Sbrooks printf("%9u ", q[l].id.proto); 2213145246Sbrooks printf("%7d %39s/%-5d ", q[l].id.flow_id6, 2214145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.src_ip6), buff, sizeof(buff)), 2215145246Sbrooks q[l].id.src_port); 2216145246Sbrooks printf(" %39s/%-5d ", 2217145246Sbrooks inet_ntop(AF_INET6, &(q[l].id.dst_ip6), buff, sizeof(buff)), 2218145246Sbrooks q[l].id.dst_port); 2219145246Sbrooks printf(" %4qu %8qu %2u %4u %3u\n", 2220145246Sbrooks q[l].tot_pkts, q[l].tot_bytes, 2221145246Sbrooks q[l].len, q[l].len_bytes, q[l].drops); 2222187764Sluigi if (co.verbose) 2223145246Sbrooks printf(" S %20qd F %20qd\n", q[l].S, q[l].F); 2224145246Sbrooks } 222598943Sluigi} 222698943Sluigi 222798943Sluigistatic void 222898943Sluigiprint_flowset_parms(struct dn_flow_set *fs, char *prefix) 222998943Sluigi{ 223098943Sluigi int l; 223198943Sluigi char qs[30]; 223298943Sluigi char plr[30]; 223398943Sluigi char red[90]; /* Display RED parameters */ 223498943Sluigi 223598943Sluigi l = fs->qsize; 223698943Sluigi if (fs->flags_fs & DN_QSIZE_IS_BYTES) { 223798943Sluigi if (l >= 8192) 223898943Sluigi sprintf(qs, "%d KB", l / 1024); 223998943Sluigi else 224098943Sluigi sprintf(qs, "%d B", l); 224198943Sluigi } else 224298943Sluigi sprintf(qs, "%3d sl.", l); 224398943Sluigi if (fs->plr) 224498943Sluigi sprintf(plr, "plr %f", 1.0 * fs->plr / (double)(0x7fffffff)); 224598943Sluigi else 224698943Sluigi plr[0] = '\0'; 224798943Sluigi if (fs->flags_fs & DN_IS_RED) /* RED parameters */ 224898943Sluigi sprintf(red, 224998943Sluigi "\n\t %cRED w_q %f min_th %d max_th %d max_p %f", 225098943Sluigi (fs->flags_fs & DN_IS_GENTLE_RED) ? 'G' : ' ', 225198943Sluigi 1.0 * fs->w_q / (double)(1 << SCALE_RED), 225298943Sluigi SCALE_VAL(fs->min_th), 225398943Sluigi SCALE_VAL(fs->max_th), 225498943Sluigi 1.0 * fs->max_p / (double)(1 << SCALE_RED)); 225598943Sluigi else 225698943Sluigi sprintf(red, "droptail"); 225798943Sluigi 225898943Sluigi printf("%s %s%s %d queues (%d buckets) %s\n", 225998943Sluigi prefix, qs, plr, fs->rq_elements, fs->rq_size, red); 226098943Sluigi} 226198943Sluigi 226298943Sluigistatic void 2263117469Sluigilist_pipes(void *data, uint nbytes, int ac, char *av[]) 226498943Sluigi{ 2265117469Sluigi int rulenum; 226698943Sluigi void *next = data; 226798943Sluigi struct dn_pipe *p = (struct dn_pipe *) data; 226898943Sluigi struct dn_flow_set *fs; 226998943Sluigi struct dn_flow_queue *q; 227098943Sluigi int l; 227198943Sluigi 227298943Sluigi if (ac > 0) 227398943Sluigi rulenum = strtoul(*av++, NULL, 10); 227498943Sluigi else 227598943Sluigi rulenum = 0; 227698943Sluigi for (; nbytes >= sizeof *p; p = (struct dn_pipe *)next) { 227798943Sluigi double b = p->bandwidth; 227898943Sluigi char buf[30]; 227998943Sluigi char prefix[80]; 228098943Sluigi 2281161001Sstefanf if (SLIST_NEXT(p, next) != (struct dn_pipe *)DN_IS_PIPE) 228298943Sluigi break; /* done with pipes, now queues */ 228398943Sluigi 228498943Sluigi /* 228598943Sluigi * compute length, as pipe have variable size 228698943Sluigi */ 228798943Sluigi l = sizeof(*p) + p->fs.rq_elements * sizeof(*q); 2288117469Sluigi next = (char *)p + l; 228998943Sluigi nbytes -= l; 229098943Sluigi 2291187764Sluigi if ((rulenum != 0 && rulenum != p->pipe_nr) || co.do_pipe == 2) 229298943Sluigi continue; 229398943Sluigi 229498943Sluigi /* 229598943Sluigi * Print rate (or clocking interface) 229698943Sluigi */ 229798943Sluigi if (p->if_name[0] != '\0') 229898943Sluigi sprintf(buf, "%s", p->if_name); 229998943Sluigi else if (b == 0) 230098943Sluigi sprintf(buf, "unlimited"); 230198943Sluigi else if (b >= 1000000) 230298943Sluigi sprintf(buf, "%7.3f Mbit/s", b/1000000); 230398943Sluigi else if (b >= 1000) 230498943Sluigi sprintf(buf, "%7.3f Kbit/s", b/1000); 230598943Sluigi else 230698943Sluigi sprintf(buf, "%7.3f bit/s ", b); 230798943Sluigi 230898943Sluigi sprintf(prefix, "%05d: %s %4d ms ", 230998943Sluigi p->pipe_nr, buf, p->delay); 231098943Sluigi print_flowset_parms(&(p->fs), prefix); 2311187764Sluigi if (co.verbose) 231298943Sluigi printf(" V %20qd\n", p->V >> MY_M); 2313106505Smaxim 231498943Sluigi q = (struct dn_flow_queue *)(p+1); 231598943Sluigi list_queues(&(p->fs), q); 231698943Sluigi } 231798943Sluigi for (fs = next; nbytes >= sizeof *fs; fs = next) { 231898943Sluigi char prefix[80]; 231998943Sluigi 2320161001Sstefanf if (SLIST_NEXT(fs, next) != (struct dn_flow_set *)DN_IS_QUEUE) 232198943Sluigi break; 232298943Sluigi l = sizeof(*fs) + fs->rq_elements * sizeof(*q); 2323117469Sluigi next = (char *)fs + l; 232498943Sluigi nbytes -= l; 2325134225Spjd 2326187764Sluigi if (rulenum != 0 && ((rulenum != fs->fs_nr && co.do_pipe == 2) || 2327187764Sluigi (rulenum != fs->parent_nr && co.do_pipe == 1))) { 2328134225Spjd continue; 2329134225Spjd } 2330134225Spjd 233198943Sluigi q = (struct dn_flow_queue *)(fs+1); 233298943Sluigi sprintf(prefix, "q%05d: weight %d pipe %d ", 233398943Sluigi fs->fs_nr, fs->weight, fs->parent_nr); 233498943Sluigi print_flowset_parms(fs, prefix); 233598943Sluigi list_queues(fs, q); 233698943Sluigi } 233798943Sluigi} 233898943Sluigi 2339101978Sluigi/* 2340101978Sluigi * This one handles all set-related commands 2341101978Sluigi * ipfw set { show | enable | disable } 2342101978Sluigi * ipfw set swap X Y 2343101978Sluigi * ipfw set move X to Y 2344101978Sluigi * ipfw set move rule X to Y 2345101978Sluigi */ 2346187767Sluigivoid 2347187767Sluigiipfw_sets_handler(int ac, char *av[]) 2348101978Sluigi{ 2349117328Sluigi uint32_t set_disable, masks[2]; 2350101978Sluigi int i, nbytes; 2351117328Sluigi uint16_t rulenum; 2352117328Sluigi uint8_t cmd, new_set; 2353101978Sluigi 2354101978Sluigi ac--; 2355101978Sluigi av++; 2356101978Sluigi 2357101978Sluigi if (!ac) 2358101978Sluigi errx(EX_USAGE, "set needs command"); 2359140271Sbrooks if (_substrcmp(*av, "show") == 0) { 2360101978Sluigi void *data; 2361117469Sluigi char const *msg; 2362101978Sluigi 2363101978Sluigi nbytes = sizeof(struct ip_fw); 2364187716Sluigi data = safe_calloc(1, nbytes); 2365119740Stmm if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0) 2366101978Sluigi err(EX_OSERR, "getsockopt(IP_FW_GET)"); 2367115793Sticso bcopy(&((struct ip_fw *)data)->next_rule, 2368115793Sticso &set_disable, sizeof(set_disable)); 2369101978Sluigi 2370117655Sluigi for (i = 0, msg = "disable" ; i < RESVD_SET; i++) 2371117577Sluigi if ((set_disable & (1<<i))) { 2372101978Sluigi printf("%s %d", msg, i); 2373101978Sluigi msg = ""; 2374101978Sluigi } 2375101978Sluigi msg = (set_disable) ? " enable" : "enable"; 2376117655Sluigi for (i = 0; i < RESVD_SET; i++) 2377117577Sluigi if (!(set_disable & (1<<i))) { 2378101978Sluigi printf("%s %d", msg, i); 2379101978Sluigi msg = ""; 2380101978Sluigi } 2381101978Sluigi printf("\n"); 2382140271Sbrooks } else if (_substrcmp(*av, "swap") == 0) { 2383101978Sluigi ac--; av++; 2384101978Sluigi if (ac != 2) 2385101978Sluigi errx(EX_USAGE, "set swap needs 2 set numbers\n"); 2386101978Sluigi rulenum = atoi(av[0]); 2387101978Sluigi new_set = atoi(av[1]); 2388117655Sluigi if (!isdigit(*(av[0])) || rulenum > RESVD_SET) 2389101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[0]); 2390117655Sluigi if (!isdigit(*(av[1])) || new_set > RESVD_SET) 2391101978Sluigi errx(EX_DATAERR, "invalid set number %s\n", av[1]); 2392101978Sluigi masks[0] = (4 << 24) | (new_set << 16) | (rulenum); 2393117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2394140271Sbrooks } else if (_substrcmp(*av, "move") == 0) { 2395101978Sluigi ac--; av++; 2396140271Sbrooks if (ac && _substrcmp(*av, "rule") == 0) { 2397101978Sluigi cmd = 2; 2398101978Sluigi ac--; av++; 2399101978Sluigi } else 2400101978Sluigi cmd = 3; 2401140271Sbrooks if (ac != 3 || _substrcmp(av[1], "to") != 0) 2402101978Sluigi errx(EX_USAGE, "syntax: set move [rule] X to Y\n"); 2403101978Sluigi rulenum = atoi(av[0]); 2404101978Sluigi new_set = atoi(av[2]); 2405117655Sluigi if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) || 2406182823Srik (cmd == 2 && rulenum == IPFW_DEFAULT_RULE) ) 2407101978Sluigi errx(EX_DATAERR, "invalid source number %s\n", av[0]); 2408117655Sluigi if (!isdigit(*(av[2])) || new_set > RESVD_SET) 2409101978Sluigi errx(EX_DATAERR, "invalid dest. set %s\n", av[1]); 2410101978Sluigi masks[0] = (cmd << 24) | (new_set << 16) | (rulenum); 2411117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t)); 2412140271Sbrooks } else if (_substrcmp(*av, "disable") == 0 || 2413140271Sbrooks _substrcmp(*av, "enable") == 0 ) { 2414140271Sbrooks int which = _substrcmp(*av, "enable") == 0 ? 1 : 0; 2415101978Sluigi 2416101978Sluigi ac--; av++; 2417101978Sluigi masks[0] = masks[1] = 0; 2418101978Sluigi 2419101978Sluigi while (ac) { 2420101978Sluigi if (isdigit(**av)) { 2421101978Sluigi i = atoi(*av); 2422117655Sluigi if (i < 0 || i > RESVD_SET) 2423101978Sluigi errx(EX_DATAERR, 2424101978Sluigi "invalid set number %d\n", i); 2425101978Sluigi masks[which] |= (1<<i); 2426140271Sbrooks } else if (_substrcmp(*av, "disable") == 0) 2427101978Sluigi which = 0; 2428140271Sbrooks else if (_substrcmp(*av, "enable") == 0) 2429101978Sluigi which = 1; 2430101978Sluigi else 2431101978Sluigi errx(EX_DATAERR, 2432101978Sluigi "invalid set command %s\n", *av); 2433101978Sluigi av++; ac--; 2434101978Sluigi } 2435101978Sluigi if ( (masks[0] & masks[1]) != 0 ) 2436101978Sluigi errx(EX_DATAERR, 2437101978Sluigi "cannot enable and disable the same set\n"); 2438101978Sluigi 2439117328Sluigi i = do_cmd(IP_FW_DEL, masks, sizeof(masks)); 2440101978Sluigi if (i) 2441101978Sluigi warn("set enable/disable: setsockopt(IP_FW_DEL)"); 2442101978Sluigi } else 2443101978Sluigi errx(EX_USAGE, "invalid set command %s\n", *av); 2444101978Sluigi} 2445101978Sluigi 2446187767Sluigivoid 2447187767Sluigiipfw_sysctl_handler(int ac, char *av[], int which) 2448109126Sdillon{ 2449109126Sdillon ac--; 2450109126Sdillon av++; 2451109126Sdillon 2452119668Smaxim if (ac == 0) { 2453109126Sdillon warnx("missing keyword to enable/disable\n"); 2454140271Sbrooks } else if (_substrcmp(*av, "firewall") == 0) { 2455116770Sluigi sysctlbyname("net.inet.ip.fw.enable", NULL, 0, 2456116770Sluigi &which, sizeof(which)); 2457140271Sbrooks } else if (_substrcmp(*av, "one_pass") == 0) { 2458116770Sluigi sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0, 2459116770Sluigi &which, sizeof(which)); 2460140271Sbrooks } else if (_substrcmp(*av, "debug") == 0) { 2461116770Sluigi sysctlbyname("net.inet.ip.fw.debug", NULL, 0, 2462116770Sluigi &which, sizeof(which)); 2463140271Sbrooks } else if (_substrcmp(*av, "verbose") == 0) { 2464116770Sluigi sysctlbyname("net.inet.ip.fw.verbose", NULL, 0, 2465116770Sluigi &which, sizeof(which)); 2466140271Sbrooks } else if (_substrcmp(*av, "dyn_keepalive") == 0) { 2467116770Sluigi sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0, 2468116770Sluigi &which, sizeof(which)); 2469140271Sbrooks } else if (_substrcmp(*av, "altq") == 0) { 2470136071Sgreen altq_set_enabled(which); 2471109126Sdillon } else { 2472109126Sdillon warnx("unrecognize enable/disable keyword: %s\n", *av); 2473109126Sdillon } 2474109126Sdillon} 2475109126Sdillon 2476187767Sluigivoid 2477187767Sluigiipfw_list(int ac, char *av[], int show_counters) 247898943Sluigi{ 247998943Sluigi struct ip_fw *r; 248098943Sluigi ipfw_dyn_rule *dynrules, *d; 248198943Sluigi 2482117469Sluigi#define NEXT(r) ((struct ip_fw *)((char *)r + RULESIZE(r))) 2483117469Sluigi char *lim; 2484117469Sluigi void *data = NULL; 2485112189Smaxim int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width; 248698943Sluigi int exitval = EX_OK; 248798943Sluigi int lac; 248898943Sluigi char **lav; 2489117469Sluigi u_long rnum, last; 249098943Sluigi char *endptr; 249198943Sluigi int seen = 0; 2492170923Smaxim uint8_t set; 249398943Sluigi 2494187764Sluigi const int ocmd = co.do_pipe ? IP_DUMMYNET_GET : IP_FW_GET; 249598943Sluigi int nalloc = 1024; /* start somewhere... */ 249698943Sluigi 2497135036Smaxim last = 0; 2498135036Smaxim 2499187764Sluigi if (co.test_only) { 2500117328Sluigi fprintf(stderr, "Testing only, list disabled\n"); 2501117328Sluigi return; 2502117328Sluigi } 2503117328Sluigi 250498943Sluigi ac--; 250598943Sluigi av++; 250698943Sluigi 250798943Sluigi /* get rules or pipes from kernel, resizing array as necessary */ 250898943Sluigi nbytes = nalloc; 250998943Sluigi 251098943Sluigi while (nbytes >= nalloc) { 251198943Sluigi nalloc = nalloc * 2 + 200; 251298943Sluigi nbytes = nalloc; 2513187716Sluigi data = safe_realloc(data, nbytes); 2514119740Stmm if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0) 251598943Sluigi err(EX_OSERR, "getsockopt(IP_%s_GET)", 2516187764Sluigi co.do_pipe ? "DUMMYNET" : "FW"); 251798943Sluigi } 251898943Sluigi 2519187764Sluigi if (co.do_pipe) { 252098943Sluigi list_pipes(data, nbytes, ac, av); 252198943Sluigi goto done; 252298943Sluigi } 252398943Sluigi 252498943Sluigi /* 252598943Sluigi * Count static rules. They have variable size so we 252698943Sluigi * need to scan the list to count them. 252798943Sluigi */ 2528117469Sluigi for (nstat = 1, r = data, lim = (char *)data + nbytes; 2529182823Srik r->rulenum < IPFW_DEFAULT_RULE && (char *)r < lim; 2530117469Sluigi ++nstat, r = NEXT(r) ) 253198943Sluigi ; /* nothing */ 253298943Sluigi 253398943Sluigi /* 253498943Sluigi * Count dynamic rules. This is easier as they have 253598943Sluigi * fixed size. 253698943Sluigi */ 2537117469Sluigi r = NEXT(r); 253898943Sluigi dynrules = (ipfw_dyn_rule *)r ; 2539117469Sluigi n = (char *)r - (char *)data; 254098943Sluigi ndyn = (nbytes - n) / sizeof *dynrules; 254198943Sluigi 2542112189Smaxim /* if showing stats, figure out column widths ahead of time */ 2543112189Smaxim bcwidth = pcwidth = 0; 2544117469Sluigi if (show_counters) { 2545117469Sluigi for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2546170923Smaxim /* skip rules from another set */ 2547187764Sluigi if (co.use_set && r->set != co.use_set - 1) 2548170923Smaxim continue; 2549170923Smaxim 2550112189Smaxim /* packet counter */ 2551115793Sticso width = snprintf(NULL, 0, "%llu", 2552115793Sticso align_uint64(&r->pcnt)); 2553112189Smaxim if (width > pcwidth) 2554112189Smaxim pcwidth = width; 2555112189Smaxim 2556112189Smaxim /* byte counter */ 2557115793Sticso width = snprintf(NULL, 0, "%llu", 2558115793Sticso align_uint64(&r->bcnt)); 2559112189Smaxim if (width > bcwidth) 2560112189Smaxim bcwidth = width; 2561112189Smaxim } 2562112189Smaxim } 2563187764Sluigi if (co.do_dynamic && ndyn) { 2564112189Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2565187764Sluigi if (co.use_set) { 2566170923Smaxim /* skip rules from another set */ 2567171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2568170923Smaxim &set, sizeof(uint8_t)); 2569187764Sluigi if (set != co.use_set - 1) 2570170923Smaxim continue; 2571170923Smaxim } 2572115793Sticso width = snprintf(NULL, 0, "%llu", 2573115793Sticso align_uint64(&d->pcnt)); 2574112189Smaxim if (width > pcwidth) 2575112189Smaxim pcwidth = width; 2576112189Smaxim 2577115793Sticso width = snprintf(NULL, 0, "%llu", 2578115793Sticso align_uint64(&d->bcnt)); 2579112189Smaxim if (width > bcwidth) 2580112189Smaxim bcwidth = width; 2581112189Smaxim } 2582112189Smaxim } 258398943Sluigi /* if no rule numbers were specified, list all rules */ 258498943Sluigi if (ac == 0) { 2585170923Smaxim for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) { 2586187764Sluigi if (co.use_set && r->set != co.use_set - 1) 2587170923Smaxim continue; 2588112189Smaxim show_ipfw(r, pcwidth, bcwidth); 2589170923Smaxim } 259098943Sluigi 2591187764Sluigi if (co.do_dynamic && ndyn) { 259298943Sluigi printf("## Dynamic rules (%d):\n", ndyn); 2593170923Smaxim for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2594187764Sluigi if (co.use_set) { 2595171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2596170923Smaxim &set, sizeof(uint8_t)); 2597187764Sluigi if (set != co.use_set - 1) 2598170923Smaxim continue; 2599170923Smaxim } 2600112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 260198943Sluigi } 2602170923Smaxim } 260398943Sluigi goto done; 260498943Sluigi } 260598943Sluigi 260698943Sluigi /* display specific rules requested on command line */ 260798943Sluigi 260898943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 260998943Sluigi /* convert command line rule # */ 2610117469Sluigi last = rnum = strtoul(*lav++, &endptr, 10); 2611117469Sluigi if (*endptr == '-') 2612117469Sluigi last = strtoul(endptr+1, &endptr, 10); 261398943Sluigi if (*endptr) { 261498943Sluigi exitval = EX_USAGE; 261598943Sluigi warnx("invalid rule number: %s", *(lav - 1)); 261698943Sluigi continue; 261798943Sluigi } 2618117469Sluigi for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) { 2619117469Sluigi if (r->rulenum > last) 262098943Sluigi break; 2621187764Sluigi if (co.use_set && r->set != co.use_set - 1) 2622170923Smaxim continue; 2623117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) { 2624112189Smaxim show_ipfw(r, pcwidth, bcwidth); 262598943Sluigi seen = 1; 262698943Sluigi } 262798943Sluigi } 262898943Sluigi if (!seen) { 262998943Sluigi /* give precedence to other error(s) */ 263098943Sluigi if (exitval == EX_OK) 263198943Sluigi exitval = EX_UNAVAILABLE; 263298943Sluigi warnx("rule %lu does not exist", rnum); 263398943Sluigi } 263498943Sluigi } 263598943Sluigi 2636187764Sluigi if (co.do_dynamic && ndyn) { 263798943Sluigi printf("## Dynamic rules:\n"); 263898943Sluigi for (lac = ac, lav = av; lac != 0; lac--) { 2639145246Sbrooks last = rnum = strtoul(*lav++, &endptr, 10); 2640117469Sluigi if (*endptr == '-') 2641117469Sluigi last = strtoul(endptr+1, &endptr, 10); 264298943Sluigi if (*endptr) 264398943Sluigi /* already warned */ 264498943Sluigi continue; 264598943Sluigi for (n = 0, d = dynrules; n < ndyn; n++, d++) { 2646115793Sticso uint16_t rulenum; 2647115793Sticso 2648115793Sticso bcopy(&d->rule, &rulenum, sizeof(rulenum)); 2649115793Sticso if (rulenum > rnum) 265098943Sluigi break; 2651187764Sluigi if (co.use_set) { 2652171989Smaxim bcopy((char *)&d->rule + sizeof(uint16_t), 2653170923Smaxim &set, sizeof(uint8_t)); 2654187764Sluigi if (set != co.use_set - 1) 2655170923Smaxim continue; 2656170923Smaxim } 2657117469Sluigi if (r->rulenum >= rnum && r->rulenum <= last) 2658112189Smaxim show_dyn_ipfw(d, pcwidth, bcwidth); 265998943Sluigi } 266098943Sluigi } 266198943Sluigi } 266298943Sluigi 266398943Sluigi ac = 0; 266498943Sluigi 266598943Sluigidone: 266698943Sluigi free(data); 266798943Sluigi 266898943Sluigi if (exitval != EX_OK) 266998943Sluigi exit(exitval); 2670117469Sluigi#undef NEXT 267198943Sluigi} 267298943Sluigi 267398943Sluigistatic int 267498943Sluigilookup_host (char *host, struct in_addr *ipaddr) 267598943Sluigi{ 267698943Sluigi struct hostent *he; 267798943Sluigi 267898943Sluigi if (!inet_aton(host, ipaddr)) { 267998943Sluigi if ((he = gethostbyname(host)) == NULL) 268098943Sluigi return(-1); 268198943Sluigi *ipaddr = *(struct in_addr *)he->h_addr_list[0]; 268298943Sluigi } 268398943Sluigi return(0); 268498943Sluigi} 268598943Sluigi 268698943Sluigi/* 268798943Sluigi * fills the addr and mask fields in the instruction as appropriate from av. 268898943Sluigi * Update length as appropriate. 268998943Sluigi * The following formats are allowed: 269098943Sluigi * me returns O_IP_*_ME 269198943Sluigi * 1.2.3.4 single IP address 269298943Sluigi * 1.2.3.4:5.6.7.8 address:mask 269398943Sluigi * 1.2.3.4/24 address/mask 269498943Sluigi * 1.2.3.4/26{1,6,5,4,23} set of addresses in a subnet 2695117328Sluigi * We can have multiple comma-separated address/mask entries. 269698943Sluigi */ 269798943Sluigistatic void 269898943Sluigifill_ip(ipfw_insn_ip *cmd, char *av) 269998943Sluigi{ 2700117328Sluigi int len = 0; 2701117328Sluigi uint32_t *d = ((ipfw_insn_u32 *)cmd)->d; 270298943Sluigi 270398943Sluigi cmd->o.len &= ~F_LEN_MASK; /* zero len */ 270498943Sluigi 2705140271Sbrooks if (_substrcmp(av, "any") == 0) 270698943Sluigi return; 270798943Sluigi 2708140271Sbrooks if (_substrcmp(av, "me") == 0) { 270998943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn); 271098943Sluigi return; 271198943Sluigi } 271298943Sluigi 2713140271Sbrooks if (strncmp(av, "table(", 6) == 0) { 2714130281Sru char *p = strchr(av + 6, ','); 2715130281Sru 2716130281Sru if (p) 2717130281Sru *p++ = '\0'; 2718130281Sru cmd->o.opcode = O_IP_DST_LOOKUP; 2719130281Sru cmd->o.arg1 = strtoul(av + 6, NULL, 0); 2720130281Sru if (p) { 2721130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2722130281Sru d[0] = strtoul(p, NULL, 0); 2723130281Sru } else 2724130281Sru cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2725130281Sru return; 2726130281Sru } 2727130281Sru 2728117328Sluigi while (av) { 2729117328Sluigi /* 2730117328Sluigi * After the address we can have '/' or ':' indicating a mask, 2731117328Sluigi * ',' indicating another address follows, '{' indicating a 2732117328Sluigi * set of addresses of unspecified size. 2733117328Sluigi */ 2734165851Smlaier char *t = NULL, *p = strpbrk(av, "/:,{"); 2735117328Sluigi int masklen; 2736187477Sluigi char md, nd = '\0'; 2737117328Sluigi 273898943Sluigi if (p) { 273998943Sluigi md = *p; 274098943Sluigi *p++ = '\0'; 2741165851Smlaier if ((t = strpbrk(p, ",{")) != NULL) { 2742165851Smlaier nd = *t; 2743165851Smlaier *t = '\0'; 2744165851Smlaier } 2745117328Sluigi } else 2746117328Sluigi md = '\0'; 274798943Sluigi 2748117328Sluigi if (lookup_host(av, (struct in_addr *)&d[0]) != 0) 274998943Sluigi errx(EX_NOHOST, "hostname ``%s'' unknown", av); 275098943Sluigi switch (md) { 275198943Sluigi case ':': 2752117328Sluigi if (!inet_aton(p, (struct in_addr *)&d[1])) 275398943Sluigi errx(EX_DATAERR, "bad netmask ``%s''", p); 275498943Sluigi break; 275598943Sluigi case '/': 2756117328Sluigi masklen = atoi(p); 2757117328Sluigi if (masklen == 0) 2758117328Sluigi d[1] = htonl(0); /* mask */ 2759117328Sluigi else if (masklen > 32) 276098943Sluigi errx(EX_DATAERR, "bad width ``%s''", p); 276198943Sluigi else 2762117328Sluigi d[1] = htonl(~0 << (32 - masklen)); 276398943Sluigi break; 2764117328Sluigi case '{': /* no mask, assume /24 and put back the '{' */ 2765117328Sluigi d[1] = htonl(~0 << (32 - 24)); 2766117328Sluigi *(--p) = md; 2767117328Sluigi break; 2768117328Sluigi 2769117328Sluigi case ',': /* single address plus continuation */ 2770117328Sluigi *(--p) = md; 2771117328Sluigi /* FALLTHROUGH */ 2772117328Sluigi case 0: /* initialization value */ 277398943Sluigi default: 2774117328Sluigi d[1] = htonl(~0); /* force /32 */ 277598943Sluigi break; 277698943Sluigi } 2777117328Sluigi d[0] &= d[1]; /* mask base address with mask */ 2778165851Smlaier if (t) 2779165851Smlaier *t = nd; 2780117328Sluigi /* find next separator */ 278198943Sluigi if (p) 2782117328Sluigi p = strpbrk(p, ",{"); 2783117328Sluigi if (p && *p == '{') { 2784117328Sluigi /* 2785117328Sluigi * We have a set of addresses. They are stored as follows: 2786117328Sluigi * arg1 is the set size (powers of 2, 2..256) 2787117328Sluigi * addr is the base address IN HOST FORMAT 2788117328Sluigi * mask.. is an array of arg1 bits (rounded up to 2789117328Sluigi * the next multiple of 32) with bits set 2790117328Sluigi * for each host in the map. 2791117328Sluigi */ 2792117328Sluigi uint32_t *map = (uint32_t *)&cmd->mask; 279398943Sluigi int low, high; 2794117577Sluigi int i = contigmask((uint8_t *)&(d[1]), 32); 279598943Sluigi 2796117328Sluigi if (len > 0) 2797117328Sluigi errx(EX_DATAERR, "address set cannot be in a list"); 2798117328Sluigi if (i < 24 || i > 31) 2799117328Sluigi errx(EX_DATAERR, "invalid set with mask %d\n", i); 2800117328Sluigi cmd->o.arg1 = 1<<(32-i); /* map length */ 2801117328Sluigi d[0] = ntohl(d[0]); /* base addr in host format */ 280298943Sluigi cmd->o.opcode = O_IP_DST_SET; /* default */ 280398943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32; 2804101117Sluigi for (i = 0; i < (cmd->o.arg1+31)/32 ; i++) 2805117328Sluigi map[i] = 0; /* clear map */ 280698943Sluigi 2807117328Sluigi av = p + 1; 2808117328Sluigi low = d[0] & 0xff; 280998943Sluigi high = low + cmd->o.arg1 - 1; 2810117328Sluigi /* 2811117328Sluigi * Here, i stores the previous value when we specify a range 2812117328Sluigi * of addresses within a mask, e.g. 45-63. i = -1 means we 2813117328Sluigi * have no previous value. 2814117328Sluigi */ 2815116716Sluigi i = -1; /* previous value in a range */ 281698943Sluigi while (isdigit(*av)) { 281798943Sluigi char *s; 2818117328Sluigi int a = strtol(av, &s, 0); 281998943Sluigi 2820117328Sluigi if (s == av) { /* no parameter */ 2821117328Sluigi if (*av != '}') 2822117328Sluigi errx(EX_DATAERR, "set not closed\n"); 2823117328Sluigi if (i != -1) 2824117328Sluigi errx(EX_DATAERR, "incomplete range %d-", i); 2825117328Sluigi break; 2826117328Sluigi } 2827117328Sluigi if (a < low || a > high) 2828117328Sluigi errx(EX_DATAERR, "addr %d out of range [%d-%d]\n", 282998943Sluigi a, low, high); 283098943Sluigi a -= low; 2831116716Sluigi if (i == -1) /* no previous in range */ 2832116716Sluigi i = a; 2833116716Sluigi else { /* check that range is valid */ 2834116716Sluigi if (i > a) 2835116716Sluigi errx(EX_DATAERR, "invalid range %d-%d", 2836116716Sluigi i+low, a+low); 2837116716Sluigi if (*s == '-') 2838116716Sluigi errx(EX_DATAERR, "double '-' in range"); 2839116716Sluigi } 2840116716Sluigi for (; i <= a; i++) 2841117328Sluigi map[i/32] |= 1<<(i & 31); 2842116716Sluigi i = -1; 2843116716Sluigi if (*s == '-') 2844116716Sluigi i = a; 2845117328Sluigi else if (*s == '}') 2846116716Sluigi break; 284798943Sluigi av = s+1; 284898943Sluigi } 284998943Sluigi return; 285098943Sluigi } 2851117328Sluigi av = p; 2852117328Sluigi if (av) /* then *av must be a ',' */ 2853117328Sluigi av++; 285498943Sluigi 2855117328Sluigi /* Check this entry */ 2856117328Sluigi if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */ 2857117328Sluigi /* 2858117328Sluigi * 'any' turns the entire list into a NOP. 2859117328Sluigi * 'not any' never matches, so it is removed from the 2860117328Sluigi * list unless it is the only item, in which case we 2861117328Sluigi * report an error. 2862117328Sluigi */ 2863117328Sluigi if (cmd->o.len & F_NOT) { /* "not any" never matches */ 2864117328Sluigi if (av == NULL && len == 0) /* only this entry */ 2865117328Sluigi errx(EX_DATAERR, "not any never matches"); 2866117328Sluigi } 2867117328Sluigi /* else do nothing and skip this entry */ 2868128067Smaxim return; 2869117328Sluigi } 2870117328Sluigi /* A single IP can be stored in an optimized format */ 2871187762Sluigi if (d[1] == ~0 && av == NULL && len == 0) { 287298943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32); 2873117328Sluigi return; 2874117328Sluigi } 2875117328Sluigi len += 2; /* two words... */ 2876117328Sluigi d += 2; 2877117328Sluigi } /* end while */ 2878162363Sjhay if (len + 1 > F_LEN_MASK) 2879162363Sjhay errx(EX_DATAERR, "address list too long"); 2880117328Sluigi cmd->o.len |= len+1; 288198943Sluigi} 288298943Sluigi 288398943Sluigi 2884145246Sbrooks/* Try to find ipv6 address by hostname */ 2885145246Sbrooksstatic int 2886145246Sbrookslookup_host6 (char *host, struct in6_addr *ip6addr) 2887145246Sbrooks{ 2888145246Sbrooks struct hostent *he; 2889145246Sbrooks 2890145246Sbrooks if (!inet_pton(AF_INET6, host, ip6addr)) { 2891145246Sbrooks if ((he = gethostbyname2(host, AF_INET6)) == NULL) 2892145246Sbrooks return(-1); 2893145246Sbrooks memcpy(ip6addr, he->h_addr_list[0], sizeof( struct in6_addr)); 2894145246Sbrooks } 2895145246Sbrooks return(0); 2896145246Sbrooks} 2897145246Sbrooks 2898145246Sbrooks 2899145246Sbrooks/* n2mask sets n bits of the mask */ 2900145246Sbrooksstatic void 2901145246Sbrooksn2mask(struct in6_addr *mask, int n) 2902145246Sbrooks{ 2903145246Sbrooks static int minimask[9] = 2904145246Sbrooks { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; 2905145246Sbrooks u_char *p; 2906145246Sbrooks 2907145246Sbrooks memset(mask, 0, sizeof(struct in6_addr)); 2908145246Sbrooks p = (u_char *) mask; 2909145246Sbrooks for (; n > 0; p++, n -= 8) { 2910145246Sbrooks if (n >= 8) 2911145246Sbrooks *p = 0xff; 2912145246Sbrooks else 2913145246Sbrooks *p = minimask[n]; 2914145246Sbrooks } 2915145246Sbrooks return; 2916145246Sbrooks} 2917145246Sbrooks 2918145246Sbrooks 291998943Sluigi/* 2920145246Sbrooks * fill the addr and mask fields in the instruction as appropriate from av. 2921145246Sbrooks * Update length as appropriate. 2922145246Sbrooks * The following formats are allowed: 2923145246Sbrooks * any matches any IP6. Actually returns an empty instruction. 2924145246Sbrooks * me returns O_IP6_*_ME 2925145246Sbrooks * 2926145246Sbrooks * 03f1::234:123:0342 single IP6 addres 2927145246Sbrooks * 03f1::234:123:0342/24 address/mask 2928145246Sbrooks * 03f1::234:123:0342/24,03f1::234:123:0343/ List of address 2929145246Sbrooks * 2930145246Sbrooks * Set of address (as in ipv6) not supported because ipv6 address 2931145246Sbrooks * are typically random past the initial prefix. 2932145246Sbrooks * Return 1 on success, 0 on failure. 2933145246Sbrooks */ 2934145246Sbrooksstatic int 2935145246Sbrooksfill_ip6(ipfw_insn_ip6 *cmd, char *av) 2936145246Sbrooks{ 2937145246Sbrooks int len = 0; 2938145246Sbrooks struct in6_addr *d = &(cmd->addr6); 2939145246Sbrooks /* 2940145246Sbrooks * Needed for multiple address. 2941145246Sbrooks * Note d[1] points to struct in6_add r mask6 of cmd 2942145246Sbrooks */ 2943145246Sbrooks 2944145246Sbrooks cmd->o.len &= ~F_LEN_MASK; /* zero len */ 2945145246Sbrooks 2946145246Sbrooks if (strcmp(av, "any") == 0) 2947145246Sbrooks return (1); 2948145246Sbrooks 2949145246Sbrooks 2950145246Sbrooks if (strcmp(av, "me") == 0) { /* Set the data for "me" opt*/ 2951145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2952145246Sbrooks return (1); 2953145246Sbrooks } 2954145246Sbrooks 2955145246Sbrooks if (strcmp(av, "me6") == 0) { /* Set the data for "me" opt*/ 2956145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn); 2957145246Sbrooks return (1); 2958145246Sbrooks } 2959145246Sbrooks 2960145246Sbrooks av = strdup(av); 2961145246Sbrooks while (av) { 2962145246Sbrooks /* 2963145246Sbrooks * After the address we can have '/' indicating a mask, 2964145246Sbrooks * or ',' indicating another address follows. 2965145246Sbrooks */ 2966145246Sbrooks 2967145246Sbrooks char *p; 2968145246Sbrooks int masklen; 2969145246Sbrooks char md = '\0'; 2970145246Sbrooks 2971145246Sbrooks if ((p = strpbrk(av, "/,")) ) { 2972145246Sbrooks md = *p; /* save the separator */ 2973145246Sbrooks *p = '\0'; /* terminate address string */ 2974145246Sbrooks p++; /* and skip past it */ 2975145246Sbrooks } 2976145246Sbrooks /* now p points to NULL, mask or next entry */ 2977145246Sbrooks 2978145246Sbrooks /* lookup stores address in *d as a side effect */ 2979145246Sbrooks if (lookup_host6(av, d) != 0) { 2980145246Sbrooks /* XXX: failed. Free memory and go */ 2981145246Sbrooks errx(EX_DATAERR, "bad address \"%s\"", av); 2982145246Sbrooks } 2983145246Sbrooks /* next, look at the mask, if any */ 2984145246Sbrooks masklen = (md == '/') ? atoi(p) : 128; 2985145246Sbrooks if (masklen > 128 || masklen < 0) 2986145246Sbrooks errx(EX_DATAERR, "bad width \"%s\''", p); 2987145246Sbrooks else 2988145246Sbrooks n2mask(&d[1], masklen); 2989145246Sbrooks 2990145246Sbrooks APPLY_MASK(d, &d[1]) /* mask base address with mask */ 2991145246Sbrooks 2992145246Sbrooks /* find next separator */ 2993145246Sbrooks 2994145246Sbrooks if (md == '/') { /* find separator past the mask */ 2995145246Sbrooks p = strpbrk(p, ","); 2996145246Sbrooks if (p != NULL) 2997145246Sbrooks p++; 2998145246Sbrooks } 2999145246Sbrooks av = p; 3000145246Sbrooks 3001145246Sbrooks /* Check this entry */ 3002145246Sbrooks if (masklen == 0) { 3003145246Sbrooks /* 3004145246Sbrooks * 'any' turns the entire list into a NOP. 3005145246Sbrooks * 'not any' never matches, so it is removed from the 3006145246Sbrooks * list unless it is the only item, in which case we 3007145246Sbrooks * report an error. 3008145246Sbrooks */ 3009145246Sbrooks if (cmd->o.len & F_NOT && av == NULL && len == 0) 3010145246Sbrooks errx(EX_DATAERR, "not any never matches"); 3011145246Sbrooks continue; 3012145246Sbrooks } 3013145246Sbrooks 3014145246Sbrooks /* 3015145246Sbrooks * A single IP can be stored alone 3016145246Sbrooks */ 3017145246Sbrooks if (masklen == 128 && av == NULL && len == 0) { 3018145246Sbrooks len = F_INSN_SIZE(struct in6_addr); 3019145246Sbrooks break; 3020145246Sbrooks } 3021145246Sbrooks 3022145246Sbrooks /* Update length and pointer to arguments */ 3023145246Sbrooks len += F_INSN_SIZE(struct in6_addr)*2; 3024145246Sbrooks d += 2; 3025145246Sbrooks } /* end while */ 3026145246Sbrooks 3027145246Sbrooks /* 3028145246Sbrooks * Total length of the command, remember that 1 is the size of 3029145246Sbrooks * the base command. 3030145246Sbrooks */ 3031162363Sjhay if (len + 1 > F_LEN_MASK) 3032162363Sjhay errx(EX_DATAERR, "address list too long"); 3033145246Sbrooks cmd->o.len |= len+1; 3034145246Sbrooks free(av); 3035145246Sbrooks return (1); 3036145246Sbrooks} 3037145246Sbrooks 3038145246Sbrooks/* 3039145246Sbrooks * fills command for ipv6 flow-id filtering 3040145246Sbrooks * note that the 20 bit flow number is stored in a array of u_int32_t 3041145246Sbrooks * it's supported lists of flow-id, so in the o.arg1 we store how many 3042145246Sbrooks * additional flow-id we want to filter, the basic is 1 3043145246Sbrooks */ 3044187477Sluigistatic void 3045145246Sbrooksfill_flow6( ipfw_insn_u32 *cmd, char *av ) 3046145246Sbrooks{ 3047145246Sbrooks u_int32_t type; /* Current flow number */ 3048145246Sbrooks u_int16_t nflow = 0; /* Current flow index */ 3049145246Sbrooks char *s = av; 3050145246Sbrooks cmd->d[0] = 0; /* Initializing the base number*/ 3051145246Sbrooks 3052145246Sbrooks while (s) { 3053145246Sbrooks av = strsep( &s, ",") ; 3054145246Sbrooks type = strtoul(av, &av, 0); 3055145246Sbrooks if (*av != ',' && *av != '\0') 3056145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3057145246Sbrooks if (type > 0xfffff) 3058145246Sbrooks errx(EX_DATAERR, "flow number out of range %s", av); 3059145246Sbrooks cmd->d[nflow] |= type; 3060145246Sbrooks nflow++; 3061145246Sbrooks } 3062145246Sbrooks if( nflow > 0 ) { 3063145246Sbrooks cmd->o.opcode = O_FLOW6ID; 3064145246Sbrooks cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + nflow; 3065145246Sbrooks cmd->o.arg1 = nflow; 3066145246Sbrooks } 3067145246Sbrooks else { 3068145246Sbrooks errx(EX_DATAERR, "invalid ipv6 flow number %s", av); 3069145246Sbrooks } 3070145246Sbrooks} 3071145246Sbrooks 3072145246Sbrooksstatic ipfw_insn * 3073145246Sbrooksadd_srcip6(ipfw_insn *cmd, char *av) 3074145246Sbrooks{ 3075145246Sbrooks 3076145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3077187477Sluigi if (F_LEN(cmd) == 0) { /* any */ 3078187477Sluigi } else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3079145246Sbrooks cmd->opcode = O_IP6_SRC_ME; 3080145246Sbrooks } else if (F_LEN(cmd) == 3081145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3082145246Sbrooks /* single IP, no mask*/ 3083145246Sbrooks cmd->opcode = O_IP6_SRC; 3084145246Sbrooks } else { /* addr/mask opt */ 3085145246Sbrooks cmd->opcode = O_IP6_SRC_MASK; 3086145246Sbrooks } 3087145246Sbrooks return cmd; 3088145246Sbrooks} 3089145246Sbrooks 3090145246Sbrooksstatic ipfw_insn * 3091145246Sbrooksadd_dstip6(ipfw_insn *cmd, char *av) 3092145246Sbrooks{ 3093145246Sbrooks 3094145246Sbrooks fill_ip6((ipfw_insn_ip6 *)cmd, av); 3095187477Sluigi if (F_LEN(cmd) == 0) { /* any */ 3096187477Sluigi } else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) { /* "me" */ 3097145246Sbrooks cmd->opcode = O_IP6_DST_ME; 3098145246Sbrooks } else if (F_LEN(cmd) == 3099145246Sbrooks (F_INSN_SIZE(struct in6_addr) + F_INSN_SIZE(ipfw_insn))) { 3100145246Sbrooks /* single IP, no mask*/ 3101145246Sbrooks cmd->opcode = O_IP6_DST; 3102145246Sbrooks } else { /* addr/mask opt */ 3103145246Sbrooks cmd->opcode = O_IP6_DST_MASK; 3104145246Sbrooks } 3105145246Sbrooks return cmd; 3106145246Sbrooks} 3107145246Sbrooks 3108145246Sbrooks 3109145246Sbrooks/* 311098943Sluigi * helper function to process a set of flags and set bits in the 311198943Sluigi * appropriate masks. 311298943Sluigi */ 311398943Sluigistatic void 311498943Sluigifill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode, 311598943Sluigi struct _s_x *flags, char *p) 311698943Sluigi{ 3117117328Sluigi uint8_t set=0, clear=0; 311898943Sluigi 311998943Sluigi while (p && *p) { 312098943Sluigi char *q; /* points to the separator */ 312198943Sluigi int val; 3122117328Sluigi uint8_t *which; /* mask we are working on */ 312398943Sluigi 312498943Sluigi if (*p == '!') { 312598943Sluigi p++; 312698943Sluigi which = &clear; 312798943Sluigi } else 312898943Sluigi which = &set; 312998943Sluigi q = strchr(p, ','); 313098943Sluigi if (q) 313198943Sluigi *q++ = '\0'; 313298943Sluigi val = match_token(flags, p); 313398943Sluigi if (val <= 0) 313498943Sluigi errx(EX_DATAERR, "invalid flag %s", p); 3135117328Sluigi *which |= (uint8_t)val; 313698943Sluigi p = q; 313798943Sluigi } 313898943Sluigi cmd->opcode = opcode; 313998943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | 1; 314098943Sluigi cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8); 314198943Sluigi} 314298943Sluigi 314398943Sluigi 3144187767Sluigivoid 3145187767Sluigiipfw_delete(int ac, char *av[]) 314698943Sluigi{ 3147117328Sluigi uint32_t rulenum; 3148117469Sluigi struct dn_pipe p; 314998943Sluigi int i; 315098943Sluigi int exitval = EX_OK; 3151101628Sluigi int do_set = 0; 315298943Sluigi 3153117469Sluigi memset(&p, 0, sizeof p); 315498943Sluigi 315598943Sluigi av++; ac--; 3156130013Scsjp NEED1("missing rule specification"); 3157140271Sbrooks if (ac > 0 && _substrcmp(*av, "set") == 0) { 3158170923Smaxim /* Do not allow using the following syntax: 3159170923Smaxim * ipfw set N delete set M 3160170923Smaxim */ 3161187764Sluigi if (co.use_set) 3162170923Smaxim errx(EX_DATAERR, "invalid syntax"); 3163101978Sluigi do_set = 1; /* delete set */ 3164101628Sluigi ac--; av++; 3165101978Sluigi } 316698943Sluigi 316798943Sluigi /* Rule number */ 316898943Sluigi while (ac && isdigit(**av)) { 316998943Sluigi i = atoi(*av); av++; ac--; 3170187764Sluigi if (co.do_nat) { 3171165648Spiso exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i); 3172165648Spiso if (exitval) { 3173165648Spiso exitval = EX_UNAVAILABLE; 3174165648Spiso warn("rule %u not available", i); 3175165648Spiso } 3176187764Sluigi } else if (co.do_pipe) { 3177187764Sluigi if (co.do_pipe == 1) 3178117469Sluigi p.pipe_nr = i; 317998943Sluigi else 3180117469Sluigi p.fs.fs_nr = i; 3181117469Sluigi i = do_cmd(IP_DUMMYNET_DEL, &p, sizeof p); 318298943Sluigi if (i) { 318398943Sluigi exitval = 1; 318498943Sluigi warn("rule %u: setsockopt(IP_DUMMYNET_DEL)", 3185187764Sluigi co.do_pipe == 1 ? p.pipe_nr : p.fs.fs_nr); 318698943Sluigi } 318798943Sluigi } else { 3188187764Sluigi if (co.use_set) 3189170923Smaxim rulenum = (i & 0xffff) | (5 << 24) | 3190187764Sluigi ((co.use_set - 1) << 16); 3191170923Smaxim else 3192101978Sluigi rulenum = (i & 0xffff) | (do_set << 24); 3193117328Sluigi i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum); 319498943Sluigi if (i) { 319598943Sluigi exitval = EX_UNAVAILABLE; 319698943Sluigi warn("rule %u: setsockopt(IP_FW_DEL)", 319798943Sluigi rulenum); 319898943Sluigi } 319998943Sluigi } 320098943Sluigi } 320198943Sluigi if (exitval != EX_OK) 320298943Sluigi exit(exitval); 320398943Sluigi} 320498943Sluigi 320598943Sluigi 320698943Sluigi/* 320798943Sluigi * fill the interface structure. We do not check the name as we can 320898943Sluigi * create interfaces dynamically, so checking them at insert time 320998943Sluigi * makes relatively little sense. 3210121816Sbrooks * Interface names containing '*', '?', or '[' are assumed to be shell 3211121816Sbrooks * patterns which match interfaces. 321298943Sluigi */ 321398943Sluigistatic void 321498943Sluigifill_iface(ipfw_insn_if *cmd, char *arg) 321598943Sluigi{ 321698943Sluigi cmd->name[0] = '\0'; 321798943Sluigi cmd->o.len |= F_INSN_SIZE(ipfw_insn_if); 321898943Sluigi 321998943Sluigi /* Parse the interface or address */ 3220140271Sbrooks if (strcmp(arg, "any") == 0) 322198943Sluigi cmd->o.len = 0; /* effectively ignore this command */ 322298943Sluigi else if (!isdigit(*arg)) { 3223121816Sbrooks strlcpy(cmd->name, arg, sizeof(cmd->name)); 3224121816Sbrooks cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0; 322598943Sluigi } else if (!inet_aton(arg, &cmd->p.ip)) 322698943Sluigi errx(EX_DATAERR, "bad ip address ``%s''", arg); 322798943Sluigi} 322898943Sluigi 3229165648Spiso/* 3230165648Spiso * Search for interface with name "ifn", and fill n accordingly: 3231165648Spiso * 3232165648Spiso * n->ip ip address of interface "ifn" 3233165648Spiso * n->if_name copy of interface name "ifn" 3234165648Spiso */ 323598943Sluigistatic void 3236165648Spisoset_addr_dynamic(const char *ifn, struct cfg_nat *n) 3237165648Spiso{ 3238165648Spiso size_t needed; 3239165648Spiso int mib[6]; 3240165648Spiso char *buf, *lim, *next; 3241165648Spiso struct if_msghdr *ifm; 3242165648Spiso struct ifa_msghdr *ifam; 3243165648Spiso struct sockaddr_dl *sdl; 3244165648Spiso struct sockaddr_in *sin; 3245165648Spiso int ifIndex, ifMTU; 3246165648Spiso 3247165648Spiso mib[0] = CTL_NET; 3248165648Spiso mib[1] = PF_ROUTE; 3249165648Spiso mib[2] = 0; 3250165648Spiso mib[3] = AF_INET; 3251165648Spiso mib[4] = NET_RT_IFLIST; 3252165648Spiso mib[5] = 0; 3253165648Spiso/* 3254165648Spiso * Get interface data. 3255165648Spiso */ 3256165648Spiso if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) 3257165648Spiso err(1, "iflist-sysctl-estimate"); 3258187716Sluigi buf = safe_calloc(1, needed); 3259165648Spiso if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) 3260165648Spiso err(1, "iflist-sysctl-get"); 3261165648Spiso lim = buf + needed; 3262165648Spiso/* 3263165648Spiso * Loop through interfaces until one with 3264165648Spiso * given name is found. This is done to 3265165648Spiso * find correct interface index for routing 3266165648Spiso * message processing. 3267165648Spiso */ 3268165648Spiso ifIndex = 0; 3269165648Spiso next = buf; 3270165648Spiso while (next < lim) { 3271165648Spiso ifm = (struct if_msghdr *)next; 3272165648Spiso next += ifm->ifm_msglen; 3273165648Spiso if (ifm->ifm_version != RTM_VERSION) { 3274187764Sluigi if (co.verbose) 3275165648Spiso warnx("routing message version %d " 3276165648Spiso "not understood", ifm->ifm_version); 3277165648Spiso continue; 3278165648Spiso } 3279165648Spiso if (ifm->ifm_type == RTM_IFINFO) { 3280165648Spiso sdl = (struct sockaddr_dl *)(ifm + 1); 3281165648Spiso if (strlen(ifn) == sdl->sdl_nlen && 3282165648Spiso strncmp(ifn, sdl->sdl_data, sdl->sdl_nlen) == 0) { 3283165648Spiso ifIndex = ifm->ifm_index; 3284165648Spiso ifMTU = ifm->ifm_data.ifi_mtu; 3285165648Spiso break; 3286165648Spiso } 3287165648Spiso } 3288165648Spiso } 3289165648Spiso if (!ifIndex) 3290165648Spiso errx(1, "unknown interface name %s", ifn); 3291165648Spiso/* 3292165648Spiso * Get interface address. 3293165648Spiso */ 3294165648Spiso sin = NULL; 3295165648Spiso while (next < lim) { 3296165648Spiso ifam = (struct ifa_msghdr *)next; 3297165648Spiso next += ifam->ifam_msglen; 3298165648Spiso if (ifam->ifam_version != RTM_VERSION) { 3299187764Sluigi if (co.verbose) 3300165648Spiso warnx("routing message version %d " 3301165648Spiso "not understood", ifam->ifam_version); 3302165648Spiso continue; 3303165648Spiso } 3304165648Spiso if (ifam->ifam_type != RTM_NEWADDR) 3305165648Spiso break; 3306165648Spiso if (ifam->ifam_addrs & RTA_IFA) { 3307165648Spiso int i; 3308165648Spiso char *cp = (char *)(ifam + 1); 3309165648Spiso 3310165648Spiso for (i = 1; i < RTA_IFA; i <<= 1) { 3311165648Spiso if (ifam->ifam_addrs & i) 3312165648Spiso cp += SA_SIZE((struct sockaddr *)cp); 3313165648Spiso } 3314165648Spiso if (((struct sockaddr *)cp)->sa_family == AF_INET) { 3315165648Spiso sin = (struct sockaddr_in *)cp; 3316165648Spiso break; 3317165648Spiso } 3318165648Spiso } 3319165648Spiso } 3320165648Spiso if (sin == NULL) 3321165648Spiso errx(1, "%s: cannot get interface address", ifn); 3322165648Spiso 3323165648Spiso n->ip = sin->sin_addr; 3324165648Spiso strncpy(n->if_name, ifn, IF_NAMESIZE); 3325165648Spiso 3326165648Spiso free(buf); 3327165648Spiso} 3328165648Spiso 3329165648Spiso/* 3330165648Spiso * XXX - The following functions, macros and definitions come from natd.c: 3331165648Spiso * it would be better to move them outside natd.c, in a file 3332165648Spiso * (redirect_support.[ch]?) shared by ipfw and natd, but for now i can live 3333165648Spiso * with it. 3334165648Spiso */ 3335165648Spiso 3336165648Spiso/* 3337165648Spiso * Definition of a port range, and macros to deal with values. 3338165648Spiso * FORMAT: HI 16-bits == first port in range, 0 == all ports. 3339165648Spiso * LO 16-bits == number of ports in range 3340165648Spiso * NOTES: - Port values are not stored in network byte order. 3341165648Spiso */ 3342165648Spiso 3343165648Spiso#define port_range u_long 3344165648Spiso 3345165648Spiso#define GETLOPORT(x) ((x) >> 0x10) 3346165648Spiso#define GETNUMPORTS(x) ((x) & 0x0000ffff) 3347165648Spiso#define GETHIPORT(x) (GETLOPORT((x)) + GETNUMPORTS((x))) 3348165648Spiso 3349165648Spiso/* Set y to be the low-port value in port_range variable x. */ 3350165648Spiso#define SETLOPORT(x,y) ((x) = ((x) & 0x0000ffff) | ((y) << 0x10)) 3351165648Spiso 3352165648Spiso/* Set y to be the number of ports in port_range variable x. */ 3353165648Spiso#define SETNUMPORTS(x,y) ((x) = ((x) & 0xffff0000) | (y)) 3354165648Spiso 3355165648Spisostatic void 3356165648SpisoStrToAddr (const char* str, struct in_addr* addr) 3357165648Spiso{ 3358165648Spiso struct hostent* hp; 3359165648Spiso 3360165648Spiso if (inet_aton (str, addr)) 3361165648Spiso return; 3362165648Spiso 3363165648Spiso hp = gethostbyname (str); 3364165648Spiso if (!hp) 3365165648Spiso errx (1, "unknown host %s", str); 3366165648Spiso 3367165648Spiso memcpy (addr, hp->h_addr, sizeof (struct in_addr)); 3368165648Spiso} 3369165648Spiso 3370165648Spisostatic int 3371165648SpisoStrToPortRange (const char* str, const char* proto, port_range *portRange) 3372165648Spiso{ 3373165648Spiso char* sep; 3374165648Spiso struct servent* sp; 3375165648Spiso char* end; 3376165648Spiso u_short loPort; 3377165648Spiso u_short hiPort; 3378165648Spiso 3379165648Spiso /* First see if this is a service, return corresponding port if so. */ 3380165648Spiso sp = getservbyname (str,proto); 3381165648Spiso if (sp) { 3382165648Spiso SETLOPORT(*portRange, ntohs(sp->s_port)); 3383165648Spiso SETNUMPORTS(*portRange, 1); 3384165648Spiso return 0; 3385165648Spiso } 3386165648Spiso 3387165648Spiso /* Not a service, see if it's a single port or port range. */ 3388165648Spiso sep = strchr (str, '-'); 3389165648Spiso if (sep == NULL) { 3390165648Spiso SETLOPORT(*portRange, strtol(str, &end, 10)); 3391165648Spiso if (end != str) { 3392165648Spiso /* Single port. */ 3393165648Spiso SETNUMPORTS(*portRange, 1); 3394165648Spiso return 0; 3395165648Spiso } 3396165648Spiso 3397165648Spiso /* Error in port range field. */ 3398165648Spiso errx (EX_DATAERR, "%s/%s: unknown service", str, proto); 3399165648Spiso } 3400165648Spiso 3401165648Spiso /* Port range, get the values and sanity check. */ 3402165648Spiso sscanf (str, "%hu-%hu", &loPort, &hiPort); 3403165648Spiso SETLOPORT(*portRange, loPort); 3404165648Spiso SETNUMPORTS(*portRange, 0); /* Error by default */ 3405165648Spiso if (loPort <= hiPort) 3406165648Spiso SETNUMPORTS(*portRange, hiPort - loPort + 1); 3407165648Spiso 3408165648Spiso if (GETNUMPORTS(*portRange) == 0) 3409165648Spiso errx (EX_DATAERR, "invalid port range %s", str); 3410165648Spiso 3411165648Spiso return 0; 3412165648Spiso} 3413165648Spiso 3414165648Spisostatic int 3415165648SpisoStrToProto (const char* str) 3416165648Spiso{ 3417165648Spiso if (!strcmp (str, "tcp")) 3418165648Spiso return IPPROTO_TCP; 3419165648Spiso 3420165648Spiso if (!strcmp (str, "udp")) 3421165648Spiso return IPPROTO_UDP; 3422165648Spiso 3423165648Spiso errx (EX_DATAERR, "unknown protocol %s. Expected tcp or udp", str); 3424165648Spiso} 3425165648Spiso 3426165648Spisostatic int 3427165648SpisoStrToAddrAndPortRange (const char* str, struct in_addr* addr, char* proto, 3428165648Spiso port_range *portRange) 3429165648Spiso{ 3430165648Spiso char* ptr; 3431165648Spiso 3432165648Spiso ptr = strchr (str, ':'); 3433165648Spiso if (!ptr) 3434165648Spiso errx (EX_DATAERR, "%s is missing port number", str); 3435165648Spiso 3436165648Spiso *ptr = '\0'; 3437165648Spiso ++ptr; 3438165648Spiso 3439165648Spiso StrToAddr (str, addr); 3440165648Spiso return StrToPortRange (ptr, proto, portRange); 3441165648Spiso} 3442165648Spiso 3443165648Spiso/* End of stuff taken from natd.c. */ 3444165648Spiso 3445165648Spiso#define INC_ARGCV() do { \ 3446165648Spiso (*_av)++; \ 3447165648Spiso (*_ac)--; \ 3448165648Spiso av = *_av; \ 3449165648Spiso ac = *_ac; \ 3450165648Spiso} while(0) 3451165648Spiso 3452165648Spiso/* 3453165648Spiso * The next 3 functions add support for the addr, port and proto redirect and 3454165648Spiso * their logic is loosely based on SetupAddressRedirect(), SetupPortRedirect() 3455165648Spiso * and SetupProtoRedirect() from natd.c. 3456165648Spiso * 3457165648Spiso * Every setup_* function fills at least one redirect entry 3458165648Spiso * (struct cfg_redir) and zero or more server pool entry (struct cfg_spool) 3459165648Spiso * in buf. 3460165648Spiso * 3461165648Spiso * The format of data in buf is: 3462165648Spiso * 3463165648Spiso * 3464165648Spiso * cfg_nat cfg_redir cfg_spool ...... cfg_spool 3465165648Spiso * 3466165648Spiso * ------------------------------------- ------------ 3467165648Spiso * | | .....X ... | | | | ..... 3468165648Spiso * ------------------------------------- ...... ------------ 3469165648Spiso * ^ 3470165648Spiso * spool_cnt n=0 ...... n=(X-1) 3471165648Spiso * 3472165648Spiso * len points to the amount of available space in buf 3473165648Spiso * space counts the memory consumed by every function 3474165648Spiso * 3475165648Spiso * XXX - Every function get all the argv params so it 3476165648Spiso * has to check, in optional parameters, that the next 3477165648Spiso * args is a valid option for the redir entry and not 3478165648Spiso * another token. Only redir_port and redir_proto are 3479165648Spiso * affected by this. 3480165648Spiso */ 3481165648Spiso 3482165648Spisostatic int 3483165648Spisosetup_redir_addr(char *spool_buf, int len, 3484165648Spiso int *_ac, char ***_av) 3485165648Spiso{ 3486165648Spiso char **av, *sep; /* Token separator. */ 3487165648Spiso /* Temporary buffer used to hold server pool ip's. */ 3488165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3489183208Srik int ac, space, lsnat; 3490165648Spiso struct cfg_redir *r; 3491165648Spiso struct cfg_spool *tmp; 3492165648Spiso 3493165648Spiso av = *_av; 3494165648Spiso ac = *_ac; 3495165648Spiso space = 0; 3496165648Spiso lsnat = 0; 3497165648Spiso if (len >= SOF_REDIR) { 3498165648Spiso r = (struct cfg_redir *)spool_buf; 3499165648Spiso /* Skip cfg_redir at beginning of buf. */ 3500165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3501165648Spiso space = SOF_REDIR; 3502165648Spiso len -= SOF_REDIR; 3503165648Spiso } else 3504165648Spiso goto nospace; 3505165648Spiso r->mode = REDIR_ADDR; 3506165648Spiso /* Extract local address. */ 3507165648Spiso if (ac == 0) 3508165648Spiso errx(EX_DATAERR, "redirect_addr: missing local address"); 3509165648Spiso sep = strchr(*av, ','); 3510165648Spiso if (sep) { /* LSNAT redirection syntax. */ 3511165648Spiso r->laddr.s_addr = INADDR_NONE; 3512165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3513165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3514165648Spiso lsnat = 1; 3515165648Spiso } else 3516165648Spiso StrToAddr(*av, &r->laddr); 3517165648Spiso INC_ARGCV(); 3518165648Spiso 3519165648Spiso /* Extract public address. */ 3520165648Spiso if (ac == 0) 3521165648Spiso errx(EX_DATAERR, "redirect_addr: missing public address"); 3522165648Spiso StrToAddr(*av, &r->paddr); 3523165648Spiso INC_ARGCV(); 3524165648Spiso 3525165648Spiso /* Setup LSNAT server pool. */ 3526165648Spiso if (sep) { 3527165648Spiso sep = strtok(tmp_spool_buf, ","); 3528165648Spiso while (sep != NULL) { 3529165648Spiso tmp = (struct cfg_spool *)spool_buf; 3530165648Spiso if (len < SOF_SPOOL) 3531165648Spiso goto nospace; 3532165648Spiso len -= SOF_SPOOL; 3533165648Spiso space += SOF_SPOOL; 3534165648Spiso StrToAddr(sep, &tmp->addr); 3535165648Spiso tmp->port = ~0; 3536165648Spiso r->spool_cnt++; 3537165648Spiso /* Point to the next possible cfg_spool. */ 3538165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3539165648Spiso sep = strtok(NULL, ","); 3540165648Spiso } 3541165648Spiso } 3542165648Spiso return(space); 3543165648Spisonospace: 3544165648Spiso errx(EX_DATAERR, "redirect_addr: buf is too small\n"); 3545165648Spiso} 3546165648Spiso 3547165648Spisostatic int 3548165648Spisosetup_redir_port(char *spool_buf, int len, 3549165648Spiso int *_ac, char ***_av) 3550165648Spiso{ 3551165648Spiso char **av, *sep, *protoName; 3552165648Spiso char tmp_spool_buf[NAT_BUF_LEN]; 3553165648Spiso int ac, space, lsnat; 3554165648Spiso struct cfg_redir *r; 3555165648Spiso struct cfg_spool *tmp; 3556165648Spiso u_short numLocalPorts; 3557165648Spiso port_range portRange; 3558165648Spiso 3559165648Spiso av = *_av; 3560165648Spiso ac = *_ac; 3561165648Spiso space = 0; 3562165648Spiso lsnat = 0; 3563165648Spiso numLocalPorts = 0; 3564165648Spiso 3565165648Spiso if (len >= SOF_REDIR) { 3566165648Spiso r = (struct cfg_redir *)spool_buf; 3567165648Spiso /* Skip cfg_redir at beginning of buf. */ 3568165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3569165648Spiso space = SOF_REDIR; 3570165648Spiso len -= SOF_REDIR; 3571165648Spiso } else 3572165648Spiso goto nospace; 3573165648Spiso r->mode = REDIR_PORT; 3574165648Spiso /* 3575165648Spiso * Extract protocol. 3576165648Spiso */ 3577165648Spiso if (ac == 0) 3578165648Spiso errx (EX_DATAERR, "redirect_port: missing protocol"); 3579165648Spiso r->proto = StrToProto(*av); 3580165648Spiso protoName = *av; 3581165648Spiso INC_ARGCV(); 3582165648Spiso 3583165648Spiso /* 3584165648Spiso * Extract local address. 3585165648Spiso */ 3586165648Spiso if (ac == 0) 3587165648Spiso errx (EX_DATAERR, "redirect_port: missing local address"); 3588165648Spiso 3589165648Spiso sep = strchr(*av, ','); 3590165648Spiso /* LSNAT redirection syntax. */ 3591165648Spiso if (sep) { 3592165648Spiso r->laddr.s_addr = INADDR_NONE; 3593165648Spiso r->lport = ~0; 3594165648Spiso numLocalPorts = 1; 3595165648Spiso /* Preserve av, copy spool servers to tmp_spool_buf. */ 3596165648Spiso strncpy(tmp_spool_buf, *av, strlen(*av)+1); 3597165648Spiso lsnat = 1; 3598165648Spiso } else { 3599165648Spiso if (StrToAddrAndPortRange (*av, &r->laddr, protoName, 3600165648Spiso &portRange) != 0) 3601165648Spiso errx(EX_DATAERR, "redirect_port:" 3602165648Spiso "invalid local port range"); 3603165648Spiso 3604165648Spiso r->lport = GETLOPORT(portRange); 3605165648Spiso numLocalPorts = GETNUMPORTS(portRange); 3606165648Spiso } 3607165648Spiso INC_ARGCV(); 3608165648Spiso 3609165648Spiso /* 3610165648Spiso * Extract public port and optionally address. 3611165648Spiso */ 3612165648Spiso if (ac == 0) 3613165648Spiso errx (EX_DATAERR, "redirect_port: missing public port"); 3614165648Spiso 3615165648Spiso sep = strchr (*av, ':'); 3616165648Spiso if (sep) { 3617165648Spiso if (StrToAddrAndPortRange (*av, &r->paddr, protoName, 3618165648Spiso &portRange) != 0) 3619165648Spiso errx(EX_DATAERR, "redirect_port:" 3620165648Spiso "invalid public port range"); 3621165648Spiso } else { 3622165648Spiso r->paddr.s_addr = INADDR_ANY; 3623165648Spiso if (StrToPortRange (*av, protoName, &portRange) != 0) 3624165648Spiso errx(EX_DATAERR, "redirect_port:" 3625165648Spiso "invalid public port range"); 3626165648Spiso } 3627165648Spiso 3628165648Spiso r->pport = GETLOPORT(portRange); 3629165648Spiso r->pport_cnt = GETNUMPORTS(portRange); 3630165648Spiso INC_ARGCV(); 3631165648Spiso 3632165648Spiso /* 3633165648Spiso * Extract remote address and optionally port. 3634165648Spiso */ 3635165648Spiso /* 3636165648Spiso * NB: isalpha(**av) => we've to check that next parameter is really an 3637165648Spiso * option for this redirect entry, else stop here processing arg[cv]. 3638165648Spiso */ 3639165648Spiso if (ac != 0 && !isalpha(**av)) { 3640165648Spiso sep = strchr (*av, ':'); 3641165648Spiso if (sep) { 3642165648Spiso if (StrToAddrAndPortRange (*av, &r->raddr, protoName, 3643165648Spiso &portRange) != 0) 3644165648Spiso errx(EX_DATAERR, "redirect_port:" 3645165648Spiso "invalid remote port range"); 3646165648Spiso } else { 3647165648Spiso SETLOPORT(portRange, 0); 3648165648Spiso SETNUMPORTS(portRange, 1); 3649165648Spiso StrToAddr (*av, &r->raddr); 3650165648Spiso } 3651165648Spiso INC_ARGCV(); 3652165648Spiso } else { 3653165648Spiso SETLOPORT(portRange, 0); 3654165648Spiso SETNUMPORTS(portRange, 1); 3655165648Spiso r->raddr.s_addr = INADDR_ANY; 3656165648Spiso } 3657165648Spiso r->rport = GETLOPORT(portRange); 3658165648Spiso r->rport_cnt = GETNUMPORTS(portRange); 3659165648Spiso 3660165648Spiso /* 3661165648Spiso * Make sure port ranges match up, then add the redirect ports. 3662165648Spiso */ 3663165648Spiso if (numLocalPorts != r->pport_cnt) 3664165648Spiso errx(EX_DATAERR, "redirect_port:" 3665165648Spiso "port ranges must be equal in size"); 3666165648Spiso 3667165648Spiso /* Remote port range is allowed to be '0' which means all ports. */ 3668165648Spiso if (r->rport_cnt != numLocalPorts && 3669165648Spiso (r->rport_cnt != 1 || r->rport != 0)) 3670165648Spiso errx(EX_DATAERR, "redirect_port: remote port must" 3671165648Spiso "be 0 or equal to local port range in size"); 3672165648Spiso 3673165648Spiso /* 3674165648Spiso * Setup LSNAT server pool. 3675165648Spiso */ 3676165648Spiso if (lsnat) { 3677165648Spiso sep = strtok(tmp_spool_buf, ","); 3678165648Spiso while (sep != NULL) { 3679165648Spiso tmp = (struct cfg_spool *)spool_buf; 3680165648Spiso if (len < SOF_SPOOL) 3681165648Spiso goto nospace; 3682165648Spiso len -= SOF_SPOOL; 3683165648Spiso space += SOF_SPOOL; 3684165648Spiso if (StrToAddrAndPortRange(sep, &tmp->addr, protoName, 3685165648Spiso &portRange) != 0) 3686165648Spiso errx(EX_DATAERR, "redirect_port:" 3687165648Spiso "invalid local port range"); 3688165648Spiso if (GETNUMPORTS(portRange) != 1) 3689165648Spiso errx(EX_DATAERR, "redirect_port: local port" 3690165648Spiso "must be single in this context"); 3691165648Spiso tmp->port = GETLOPORT(portRange); 3692165648Spiso r->spool_cnt++; 3693165648Spiso /* Point to the next possible cfg_spool. */ 3694165648Spiso spool_buf = &spool_buf[SOF_SPOOL]; 3695165648Spiso sep = strtok(NULL, ","); 3696165648Spiso } 3697165648Spiso } 3698165648Spiso return (space); 3699165648Spisonospace: 3700165648Spiso errx(EX_DATAERR, "redirect_port: buf is too small\n"); 3701165648Spiso} 3702165648Spiso 3703165648Spisostatic int 3704165648Spisosetup_redir_proto(char *spool_buf, int len, 3705165648Spiso int *_ac, char ***_av) 3706165648Spiso{ 3707165648Spiso char **av; 3708183208Srik int ac, space; 3709165648Spiso struct protoent *protoent; 3710165648Spiso struct cfg_redir *r; 3711165648Spiso 3712165648Spiso av = *_av; 3713165648Spiso ac = *_ac; 3714165648Spiso if (len >= SOF_REDIR) { 3715165648Spiso r = (struct cfg_redir *)spool_buf; 3716165648Spiso /* Skip cfg_redir at beginning of buf. */ 3717165648Spiso spool_buf = &spool_buf[SOF_REDIR]; 3718165648Spiso space = SOF_REDIR; 3719165648Spiso len -= SOF_REDIR; 3720165648Spiso } else 3721165648Spiso goto nospace; 3722165648Spiso r->mode = REDIR_PROTO; 3723165648Spiso /* 3724165648Spiso * Extract protocol. 3725165648Spiso */ 3726165648Spiso if (ac == 0) 3727165648Spiso errx(EX_DATAERR, "redirect_proto: missing protocol"); 3728165648Spiso 3729165648Spiso protoent = getprotobyname(*av); 3730165648Spiso if (protoent == NULL) 3731165648Spiso errx(EX_DATAERR, "redirect_proto: unknown protocol %s", *av); 3732165648Spiso else 3733165648Spiso r->proto = protoent->p_proto; 3734165648Spiso 3735165648Spiso INC_ARGCV(); 3736165648Spiso 3737165648Spiso /* 3738165648Spiso * Extract local address. 3739165648Spiso */ 3740165648Spiso if (ac == 0) 3741165648Spiso errx(EX_DATAERR, "redirect_proto: missing local address"); 3742165648Spiso else 3743165648Spiso StrToAddr(*av, &r->laddr); 3744165648Spiso 3745165648Spiso INC_ARGCV(); 3746165648Spiso 3747165648Spiso /* 3748165648Spiso * Extract optional public address. 3749165648Spiso */ 3750165648Spiso if (ac == 0) { 3751165648Spiso r->paddr.s_addr = INADDR_ANY; 3752165648Spiso r->raddr.s_addr = INADDR_ANY; 3753165648Spiso } else { 3754165648Spiso /* see above in setup_redir_port() */ 3755165648Spiso if (!isalpha(**av)) { 3756165648Spiso StrToAddr(*av, &r->paddr); 3757165648Spiso INC_ARGCV(); 3758165648Spiso 3759165648Spiso /* 3760165648Spiso * Extract optional remote address. 3761165648Spiso */ 3762165648Spiso /* see above in setup_redir_port() */ 3763165648Spiso if (ac!=0 && !isalpha(**av)) { 3764165648Spiso StrToAddr(*av, &r->raddr); 3765165648Spiso INC_ARGCV(); 3766165648Spiso } 3767165648Spiso } 3768165648Spiso } 3769165648Spiso return (space); 3770165648Spisonospace: 3771165648Spiso errx(EX_DATAERR, "redirect_proto: buf is too small\n"); 3772165648Spiso} 3773165648Spiso 3774165648Spisostatic void 3775187477Sluigiprint_nat_config(unsigned char *buf) 3776187477Sluigi{ 3777165648Spiso struct cfg_nat *n; 3778165648Spiso int i, cnt, flag, off; 3779165648Spiso struct cfg_redir *t; 3780165648Spiso struct cfg_spool *s; 3781165648Spiso struct protoent *p; 3782165648Spiso 3783165648Spiso n = (struct cfg_nat *)buf; 3784165648Spiso flag = 1; 3785165648Spiso off = sizeof(*n); 3786165648Spiso printf("ipfw nat %u config", n->id); 3787165648Spiso if (strlen(n->if_name) != 0) 3788165648Spiso printf(" if %s", n->if_name); 3789165648Spiso else if (n->ip.s_addr != 0) 3790165648Spiso printf(" ip %s", inet_ntoa(n->ip)); 3791165648Spiso while (n->mode != 0) { 3792165648Spiso if (n->mode & PKT_ALIAS_LOG) { 3793165648Spiso printf(" log"); 3794165648Spiso n->mode &= ~PKT_ALIAS_LOG; 3795165648Spiso } else if (n->mode & PKT_ALIAS_DENY_INCOMING) { 3796165648Spiso printf(" deny_in"); 3797165648Spiso n->mode &= ~PKT_ALIAS_DENY_INCOMING; 3798165648Spiso } else if (n->mode & PKT_ALIAS_SAME_PORTS) { 3799165648Spiso printf(" same_ports"); 3800165648Spiso n->mode &= ~PKT_ALIAS_SAME_PORTS; 3801165648Spiso } else if (n->mode & PKT_ALIAS_UNREGISTERED_ONLY) { 3802165648Spiso printf(" unreg_only"); 3803165648Spiso n->mode &= ~PKT_ALIAS_UNREGISTERED_ONLY; 3804165648Spiso } else if (n->mode & PKT_ALIAS_RESET_ON_ADDR_CHANGE) { 3805165648Spiso printf(" reset"); 3806165648Spiso n->mode &= ~PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3807165648Spiso } else if (n->mode & PKT_ALIAS_REVERSE) { 3808165648Spiso printf(" reverse"); 3809165648Spiso n->mode &= ~PKT_ALIAS_REVERSE; 3810165648Spiso } else if (n->mode & PKT_ALIAS_PROXY_ONLY) { 3811165648Spiso printf(" proxy_only"); 3812165648Spiso n->mode &= ~PKT_ALIAS_PROXY_ONLY; 3813165648Spiso } 3814165648Spiso } 3815165648Spiso /* Print all the redirect's data configuration. */ 3816165648Spiso for (cnt = 0; cnt < n->redir_cnt; cnt++) { 3817165648Spiso t = (struct cfg_redir *)&buf[off]; 3818165648Spiso off += SOF_REDIR; 3819165648Spiso switch (t->mode) { 3820165648Spiso case REDIR_ADDR: 3821165648Spiso printf(" redirect_addr"); 3822165648Spiso if (t->spool_cnt == 0) 3823165648Spiso printf(" %s", inet_ntoa(t->laddr)); 3824165648Spiso else 3825165648Spiso for (i = 0; i < t->spool_cnt; i++) { 3826165648Spiso s = (struct cfg_spool *)&buf[off]; 3827165648Spiso if (i) 3828165648Spiso printf(","); 3829165648Spiso else 3830165648Spiso printf(" "); 3831165648Spiso printf("%s", inet_ntoa(s->addr)); 3832165648Spiso off += SOF_SPOOL; 3833165648Spiso } 3834165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3835165648Spiso break; 3836165648Spiso case REDIR_PORT: 3837165648Spiso p = getprotobynumber(t->proto); 3838165648Spiso printf(" redirect_port %s ", p->p_name); 3839165648Spiso if (!t->spool_cnt) { 3840165648Spiso printf("%s:%u", inet_ntoa(t->laddr), t->lport); 3841165648Spiso if (t->pport_cnt > 1) 3842165648Spiso printf("-%u", t->lport + 3843165648Spiso t->pport_cnt - 1); 3844165648Spiso } else 3845165648Spiso for (i=0; i < t->spool_cnt; i++) { 3846165648Spiso s = (struct cfg_spool *)&buf[off]; 3847165648Spiso if (i) 3848165648Spiso printf(","); 3849165648Spiso printf("%s:%u", inet_ntoa(s->addr), 3850165648Spiso s->port); 3851165648Spiso off += SOF_SPOOL; 3852165648Spiso } 3853165648Spiso 3854165648Spiso printf(" "); 3855165648Spiso if (t->paddr.s_addr) 3856165648Spiso printf("%s:", inet_ntoa(t->paddr)); 3857165648Spiso printf("%u", t->pport); 3858165648Spiso if (!t->spool_cnt && t->pport_cnt > 1) 3859165648Spiso printf("-%u", t->pport + t->pport_cnt - 1); 3860165648Spiso 3861165648Spiso if (t->raddr.s_addr) { 3862165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3863165648Spiso if (t->rport) { 3864165648Spiso printf(":%u", t->rport); 3865165648Spiso if (!t->spool_cnt && t->rport_cnt > 1) 3866165648Spiso printf("-%u", t->rport + 3867165648Spiso t->rport_cnt - 1); 3868165648Spiso } 3869165648Spiso } 3870165648Spiso break; 3871165648Spiso case REDIR_PROTO: 3872165648Spiso p = getprotobynumber(t->proto); 3873165648Spiso printf(" redirect_proto %s %s", p->p_name, 3874165648Spiso inet_ntoa(t->laddr)); 3875165648Spiso if (t->paddr.s_addr != 0) { 3876165648Spiso printf(" %s", inet_ntoa(t->paddr)); 3877165648Spiso if (t->raddr.s_addr) 3878165648Spiso printf(" %s", inet_ntoa(t->raddr)); 3879165648Spiso } 3880165648Spiso break; 3881165648Spiso default: 3882165648Spiso errx(EX_DATAERR, "unknown redir mode"); 3883165648Spiso break; 3884165648Spiso } 3885165648Spiso } 3886165648Spiso printf("\n"); 3887165648Spiso} 3888165648Spiso 3889187767Sluigivoid 3890187767Sluigiipfw_config_nat(int ac, char **av) 3891165648Spiso{ 3892165648Spiso struct cfg_nat *n; /* Nat instance configuration. */ 3893165648Spiso int i, len, off, tok; 3894165648Spiso char *id, buf[NAT_BUF_LEN]; /* Buffer for serialized data. */ 3895165648Spiso 3896165648Spiso len = NAT_BUF_LEN; 3897165648Spiso /* Offset in buf: save space for n at the beginning. */ 3898165648Spiso off = sizeof(*n); 3899165648Spiso memset(buf, 0, sizeof(buf)); 3900165648Spiso n = (struct cfg_nat *)buf; 3901165648Spiso 3902165648Spiso av++; ac--; 3903165648Spiso /* Nat id. */ 3904165648Spiso if (ac && isdigit(**av)) { 3905165648Spiso id = *av; 3906165648Spiso i = atoi(*av); 3907165648Spiso ac--; av++; 3908165648Spiso n->id = i; 3909165648Spiso } else 3910165648Spiso errx(EX_DATAERR, "missing nat id"); 3911165648Spiso if (ac == 0) 3912165648Spiso errx(EX_DATAERR, "missing option"); 3913165648Spiso 3914165648Spiso while (ac > 0) { 3915165648Spiso tok = match_token(nat_params, *av); 3916165648Spiso ac--; av++; 3917165648Spiso switch (tok) { 3918165648Spiso case TOK_IP: 3919165648Spiso if (ac == 0) 3920165648Spiso errx(EX_DATAERR, "missing option"); 3921165648Spiso if (!inet_aton(av[0], &(n->ip))) 3922165648Spiso errx(EX_DATAERR, "bad ip address ``%s''", 3923165648Spiso av[0]); 3924165648Spiso ac--; av++; 3925165648Spiso break; 3926165648Spiso case TOK_IF: 3927175511Smaxim if (ac == 0) 3928175511Smaxim errx(EX_DATAERR, "missing option"); 3929165648Spiso set_addr_dynamic(av[0], n); 3930165648Spiso ac--; av++; 3931165648Spiso break; 3932165648Spiso case TOK_ALOG: 3933165648Spiso n->mode |= PKT_ALIAS_LOG; 3934165648Spiso break; 3935165648Spiso case TOK_DENY_INC: 3936165648Spiso n->mode |= PKT_ALIAS_DENY_INCOMING; 3937165648Spiso break; 3938165648Spiso case TOK_SAME_PORTS: 3939165648Spiso n->mode |= PKT_ALIAS_SAME_PORTS; 3940165648Spiso break; 3941165648Spiso case TOK_UNREG_ONLY: 3942165648Spiso n->mode |= PKT_ALIAS_UNREGISTERED_ONLY; 3943165648Spiso break; 3944165648Spiso case TOK_RESET_ADDR: 3945165648Spiso n->mode |= PKT_ALIAS_RESET_ON_ADDR_CHANGE; 3946165648Spiso break; 3947165648Spiso case TOK_ALIAS_REV: 3948165648Spiso n->mode |= PKT_ALIAS_REVERSE; 3949165648Spiso break; 3950165648Spiso case TOK_PROXY_ONLY: 3951165648Spiso n->mode |= PKT_ALIAS_PROXY_ONLY; 3952165648Spiso break; 3953165648Spiso /* 3954165648Spiso * All the setup_redir_* functions work directly in the final 3955165648Spiso * buffer, see above for details. 3956165648Spiso */ 3957165648Spiso case TOK_REDIR_ADDR: 3958165648Spiso case TOK_REDIR_PORT: 3959165648Spiso case TOK_REDIR_PROTO: 3960165648Spiso switch (tok) { 3961165648Spiso case TOK_REDIR_ADDR: 3962165648Spiso i = setup_redir_addr(&buf[off], len, &ac, &av); 3963165648Spiso break; 3964165648Spiso case TOK_REDIR_PORT: 3965165648Spiso i = setup_redir_port(&buf[off], len, &ac, &av); 3966165648Spiso break; 3967165648Spiso case TOK_REDIR_PROTO: 3968165648Spiso i = setup_redir_proto(&buf[off], len, &ac, &av); 3969165648Spiso break; 3970165648Spiso } 3971165648Spiso n->redir_cnt++; 3972165648Spiso off += i; 3973165648Spiso len -= i; 3974165648Spiso break; 3975165648Spiso default: 3976165648Spiso errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 3977165648Spiso } 3978165648Spiso } 3979165648Spiso 3980165648Spiso i = do_cmd(IP_FW_NAT_CFG, buf, off); 3981165648Spiso if (i) 3982165648Spiso err(1, "setsockopt(%s)", "IP_FW_NAT_CFG"); 3983183890Smaxim 3984187764Sluigi if (!co.do_quiet) { 3985186297Spiso /* After every modification, we show the resultant rule. */ 3986186297Spiso int _ac = 3; 3987186297Spiso char *_av[] = {"show", "config", id}; 3988187767Sluigi ipfw_show_nat(_ac, _av); 3989186297Spiso } 3990165648Spiso} 3991165648Spiso 3992187767Sluigivoid 3993187767Sluigiipfw_config_pipe(int ac, char **av) 399498943Sluigi{ 3995117469Sluigi struct dn_pipe p; 399698943Sluigi int i; 399798943Sluigi char *end; 399898943Sluigi void *par = NULL; 399998943Sluigi 4000117469Sluigi memset(&p, 0, sizeof p); 400198943Sluigi 400298943Sluigi av++; ac--; 400398943Sluigi /* Pipe number */ 400498943Sluigi if (ac && isdigit(**av)) { 400598943Sluigi i = atoi(*av); av++; ac--; 4006187764Sluigi if (co.do_pipe == 1) 4007117469Sluigi p.pipe_nr = i; 400898943Sluigi else 4009117469Sluigi p.fs.fs_nr = i; 401098943Sluigi } 401199475Sluigi while (ac > 0) { 401298943Sluigi double d; 401398943Sluigi int tok = match_token(dummynet_params, *av); 401498943Sluigi ac--; av++; 401598943Sluigi 401698943Sluigi switch(tok) { 4017101978Sluigi case TOK_NOERROR: 4018117469Sluigi p.fs.flags_fs |= DN_NOERROR; 4019101978Sluigi break; 4020101978Sluigi 402198943Sluigi case TOK_PLR: 402298943Sluigi NEED1("plr needs argument 0..1\n"); 402398943Sluigi d = strtod(av[0], NULL); 402498943Sluigi if (d > 1) 402598943Sluigi d = 1; 402698943Sluigi else if (d < 0) 402798943Sluigi d = 0; 4028117469Sluigi p.fs.plr = (int)(d*0x7fffffff); 402998943Sluigi ac--; av++; 403098943Sluigi break; 403198943Sluigi 403298943Sluigi case TOK_QUEUE: 403398943Sluigi NEED1("queue needs queue size\n"); 403498943Sluigi end = NULL; 4035117469Sluigi p.fs.qsize = strtoul(av[0], &end, 0); 403698943Sluigi if (*end == 'K' || *end == 'k') { 4037117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 4038117469Sluigi p.fs.qsize *= 1024; 4039140271Sbrooks } else if (*end == 'B' || 4040140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) { 4041117469Sluigi p.fs.flags_fs |= DN_QSIZE_IS_BYTES; 404298943Sluigi } 404398943Sluigi ac--; av++; 404498943Sluigi break; 404598943Sluigi 404698943Sluigi case TOK_BUCKETS: 404798943Sluigi NEED1("buckets needs argument\n"); 4048117469Sluigi p.fs.rq_size = strtoul(av[0], NULL, 0); 404998943Sluigi ac--; av++; 405098943Sluigi break; 405198943Sluigi 405298943Sluigi case TOK_MASK: 405398943Sluigi NEED1("mask needs mask specifier\n"); 405498943Sluigi /* 405598943Sluigi * per-flow queue, mask is dst_ip, dst_port, 405698943Sluigi * src_ip, src_port, proto measured in bits 405798943Sluigi */ 405898943Sluigi par = NULL; 405998943Sluigi 4060145246Sbrooks bzero(&p.fs.flow_mask, sizeof(p.fs.flow_mask)); 406198943Sluigi end = NULL; 406298943Sluigi 406398943Sluigi while (ac >= 1) { 4064117328Sluigi uint32_t *p32 = NULL; 4065117328Sluigi uint16_t *p16 = NULL; 4066145246Sbrooks uint32_t *p20 = NULL; 4067145246Sbrooks struct in6_addr *pa6 = NULL; 4068145246Sbrooks uint32_t a; 406998943Sluigi 407098943Sluigi tok = match_token(dummynet_params, *av); 407198943Sluigi ac--; av++; 407298943Sluigi switch(tok) { 407398943Sluigi case TOK_ALL: 407498943Sluigi /* 407598943Sluigi * special case, all bits significant 407698943Sluigi */ 4077117469Sluigi p.fs.flow_mask.dst_ip = ~0; 4078117469Sluigi p.fs.flow_mask.src_ip = ~0; 4079117469Sluigi p.fs.flow_mask.dst_port = ~0; 4080117469Sluigi p.fs.flow_mask.src_port = ~0; 4081117469Sluigi p.fs.flow_mask.proto = ~0; 4082145246Sbrooks n2mask(&(p.fs.flow_mask.dst_ip6), 128); 4083145246Sbrooks n2mask(&(p.fs.flow_mask.src_ip6), 128); 4084145246Sbrooks p.fs.flow_mask.flow_id6 = ~0; 4085117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 408698943Sluigi goto end_mask; 408798943Sluigi 408898943Sluigi case TOK_DSTIP: 4089117469Sluigi p32 = &p.fs.flow_mask.dst_ip; 409098943Sluigi break; 409198943Sluigi 409298943Sluigi case TOK_SRCIP: 4093117469Sluigi p32 = &p.fs.flow_mask.src_ip; 409498943Sluigi break; 409598943Sluigi 4096145246Sbrooks case TOK_DSTIP6: 4097145246Sbrooks pa6 = &(p.fs.flow_mask.dst_ip6); 4098145246Sbrooks break; 4099145246Sbrooks 4100145246Sbrooks case TOK_SRCIP6: 4101145246Sbrooks pa6 = &(p.fs.flow_mask.src_ip6); 4102145246Sbrooks break; 4103145246Sbrooks 4104145246Sbrooks case TOK_FLOWID: 4105145246Sbrooks p20 = &p.fs.flow_mask.flow_id6; 4106145246Sbrooks break; 4107145246Sbrooks 410898943Sluigi case TOK_DSTPORT: 4109117469Sluigi p16 = &p.fs.flow_mask.dst_port; 411098943Sluigi break; 411198943Sluigi 411298943Sluigi case TOK_SRCPORT: 4113117469Sluigi p16 = &p.fs.flow_mask.src_port; 411498943Sluigi break; 411598943Sluigi 411698943Sluigi case TOK_PROTO: 411798943Sluigi break; 411898943Sluigi 411998943Sluigi default: 412098943Sluigi ac++; av--; /* backtrack */ 412198943Sluigi goto end_mask; 412298943Sluigi } 412398943Sluigi if (ac < 1) 412498943Sluigi errx(EX_USAGE, "mask: value missing"); 412598943Sluigi if (*av[0] == '/') { 412698943Sluigi a = strtoul(av[0]+1, &end, 0); 4127145246Sbrooks if (pa6 == NULL) 4128145246Sbrooks a = (a == 32) ? ~0 : (1 << a) - 1; 4129106505Smaxim } else 413099909Sluigi a = strtoul(av[0], &end, 0); 413198943Sluigi if (p32 != NULL) 413298943Sluigi *p32 = a; 413398943Sluigi else if (p16 != NULL) { 4134139821Sbrooks if (a > 0xFFFF) 413598943Sluigi errx(EX_DATAERR, 4136144687Sbrooks "port mask must be 16 bit"); 4137117328Sluigi *p16 = (uint16_t)a; 4138145246Sbrooks } else if (p20 != NULL) { 4139145246Sbrooks if (a > 0xfffff) 4140145246Sbrooks errx(EX_DATAERR, 4141145246Sbrooks "flow_id mask must be 20 bit"); 4142145246Sbrooks *p20 = (uint32_t)a; 4143145246Sbrooks } else if (pa6 != NULL) { 4144187477Sluigi if (a > 128) 4145145246Sbrooks errx(EX_DATAERR, 4146145246Sbrooks "in6addr invalid mask len"); 4147145246Sbrooks else 4148145246Sbrooks n2mask(pa6, a); 414998943Sluigi } else { 4150139821Sbrooks if (a > 0xFF) 415198943Sluigi errx(EX_DATAERR, 4152144687Sbrooks "proto mask must be 8 bit"); 4153117469Sluigi p.fs.flow_mask.proto = (uint8_t)a; 415498943Sluigi } 415598943Sluigi if (a != 0) 4156117469Sluigi p.fs.flags_fs |= DN_HAVE_FLOW_MASK; 415798943Sluigi ac--; av++; 415898943Sluigi } /* end while, config masks */ 415998943Sluigiend_mask: 416098943Sluigi break; 416198943Sluigi 416298943Sluigi case TOK_RED: 416398943Sluigi case TOK_GRED: 416498943Sluigi NEED1("red/gred needs w_q/min_th/max_th/max_p\n"); 4165117469Sluigi p.fs.flags_fs |= DN_IS_RED; 416698943Sluigi if (tok == TOK_GRED) 4167117469Sluigi p.fs.flags_fs |= DN_IS_GENTLE_RED; 416898943Sluigi /* 416998943Sluigi * the format for parameters is w_q/min_th/max_th/max_p 417098943Sluigi */ 417198943Sluigi if ((end = strsep(&av[0], "/"))) { 417298943Sluigi double w_q = strtod(end, NULL); 417398943Sluigi if (w_q > 1 || w_q <= 0) 417498943Sluigi errx(EX_DATAERR, "0 < w_q <= 1"); 4175117469Sluigi p.fs.w_q = (int) (w_q * (1 << SCALE_RED)); 417698943Sluigi } 417798943Sluigi if ((end = strsep(&av[0], "/"))) { 4178117469Sluigi p.fs.min_th = strtoul(end, &end, 0); 417998943Sluigi if (*end == 'K' || *end == 'k') 4180117469Sluigi p.fs.min_th *= 1024; 418198943Sluigi } 418298943Sluigi if ((end = strsep(&av[0], "/"))) { 4183117469Sluigi p.fs.max_th = strtoul(end, &end, 0); 418498943Sluigi if (*end == 'K' || *end == 'k') 4185117469Sluigi p.fs.max_th *= 1024; 418698943Sluigi } 418798943Sluigi if ((end = strsep(&av[0], "/"))) { 418898943Sluigi double max_p = strtod(end, NULL); 418998943Sluigi if (max_p > 1 || max_p <= 0) 419098943Sluigi errx(EX_DATAERR, "0 < max_p <= 1"); 4191117469Sluigi p.fs.max_p = (int)(max_p * (1 << SCALE_RED)); 419298943Sluigi } 419398943Sluigi ac--; av++; 419498943Sluigi break; 419598943Sluigi 419698943Sluigi case TOK_DROPTAIL: 4197117469Sluigi p.fs.flags_fs &= ~(DN_IS_RED|DN_IS_GENTLE_RED); 419898943Sluigi break; 4199106505Smaxim 420098943Sluigi case TOK_BW: 420198943Sluigi NEED1("bw needs bandwidth or interface\n"); 4202187764Sluigi if (co.do_pipe != 1) 420398943Sluigi errx(EX_DATAERR, "bandwidth only valid for pipes"); 420498943Sluigi /* 420598943Sluigi * set clocking interface or bandwidth value 420698943Sluigi */ 420798943Sluigi if (av[0][0] >= 'a' && av[0][0] <= 'z') { 4208117469Sluigi int l = sizeof(p.if_name)-1; 420998943Sluigi /* interface name */ 4210117469Sluigi strncpy(p.if_name, av[0], l); 4211117469Sluigi p.if_name[l] = '\0'; 4212117469Sluigi p.bandwidth = 0; 421398943Sluigi } else { 4214117469Sluigi p.if_name[0] = '\0'; 4215117469Sluigi p.bandwidth = strtoul(av[0], &end, 0); 421698943Sluigi if (*end == 'K' || *end == 'k') { 421798943Sluigi end++; 4218117469Sluigi p.bandwidth *= 1000; 421998943Sluigi } else if (*end == 'M') { 422098943Sluigi end++; 4221117469Sluigi p.bandwidth *= 1000000; 422298943Sluigi } 4223161550Sdwmalone if ((*end == 'B' && 4224161550Sdwmalone _substrcmp2(end, "Bi", "Bit/s") != 0) || 4225140271Sbrooks _substrcmp2(end, "by", "bytes") == 0) 4226117469Sluigi p.bandwidth *= 8; 4227117469Sluigi if (p.bandwidth < 0) 422898943Sluigi errx(EX_DATAERR, "bandwidth too large"); 422998943Sluigi } 423098943Sluigi ac--; av++; 423198943Sluigi break; 423298943Sluigi 423398943Sluigi case TOK_DELAY: 4234187764Sluigi if (co.do_pipe != 1) 423598943Sluigi errx(EX_DATAERR, "delay only valid for pipes"); 423698943Sluigi NEED1("delay needs argument 0..10000ms\n"); 4237117469Sluigi p.delay = strtoul(av[0], NULL, 0); 423898943Sluigi ac--; av++; 423998943Sluigi break; 424098943Sluigi 424198943Sluigi case TOK_WEIGHT: 4242187764Sluigi if (co.do_pipe == 1) 424398943Sluigi errx(EX_DATAERR,"weight only valid for queues"); 424498943Sluigi NEED1("weight needs argument 0..100\n"); 4245117469Sluigi p.fs.weight = strtoul(av[0], &end, 0); 424698943Sluigi ac--; av++; 424798943Sluigi break; 424898943Sluigi 424998943Sluigi case TOK_PIPE: 4250187764Sluigi if (co.do_pipe == 1) 425198943Sluigi errx(EX_DATAERR,"pipe only valid for queues"); 425298943Sluigi NEED1("pipe needs pipe_number\n"); 4253117469Sluigi p.fs.parent_nr = strtoul(av[0], &end, 0); 425498943Sluigi ac--; av++; 425598943Sluigi break; 425698943Sluigi 425798943Sluigi default: 4258124924Smaxim errx(EX_DATAERR, "unrecognised option ``%s''", av[-1]); 425998943Sluigi } 426098943Sluigi } 4261187764Sluigi if (co.do_pipe == 1) { 4262117469Sluigi if (p.pipe_nr == 0) 426398943Sluigi errx(EX_DATAERR, "pipe_nr must be > 0"); 4264117469Sluigi if (p.delay > 10000) 426598943Sluigi errx(EX_DATAERR, "delay must be < 10000"); 4266187764Sluigi } else { /* co.do_pipe == 2, queue */ 4267117469Sluigi if (p.fs.parent_nr == 0) 426898943Sluigi errx(EX_DATAERR, "pipe must be > 0"); 4269117469Sluigi if (p.fs.weight >100) 427098943Sluigi errx(EX_DATAERR, "weight must be <= 100"); 427198943Sluigi } 4272117469Sluigi if (p.fs.flags_fs & DN_QSIZE_IS_BYTES) { 4273176626Sdwmalone size_t len; 4274176626Sdwmalone long limit; 4275176626Sdwmalone 4276176626Sdwmalone len = sizeof(limit); 4277176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_byte_limit", 4278176626Sdwmalone &limit, &len, NULL, 0) == -1) 4279176626Sdwmalone limit = 1024*1024; 4280176626Sdwmalone if (p.fs.qsize > limit) 4281176626Sdwmalone errx(EX_DATAERR, "queue size must be < %ldB", limit); 428298943Sluigi } else { 4283176626Sdwmalone size_t len; 4284176626Sdwmalone long limit; 4285176626Sdwmalone 4286176626Sdwmalone len = sizeof(limit); 4287176626Sdwmalone if (sysctlbyname("net.inet.ip.dummynet.pipe_slot_limit", 4288176626Sdwmalone &limit, &len, NULL, 0) == -1) 4289176626Sdwmalone limit = 100; 4290176626Sdwmalone if (p.fs.qsize > limit) 4291176626Sdwmalone errx(EX_DATAERR, "2 <= queue size <= %ld", limit); 429298943Sluigi } 4293117469Sluigi if (p.fs.flags_fs & DN_IS_RED) { 429498943Sluigi size_t len; 429598943Sluigi int lookup_depth, avg_pkt_size; 429698943Sluigi double s, idle, weight, w_q; 4297117469Sluigi struct clockinfo ck; 429898943Sluigi int t; 429998943Sluigi 4300117469Sluigi if (p.fs.min_th >= p.fs.max_th) 430198943Sluigi errx(EX_DATAERR, "min_th %d must be < than max_th %d", 4302117469Sluigi p.fs.min_th, p.fs.max_th); 4303117469Sluigi if (p.fs.max_th == 0) 430498943Sluigi errx(EX_DATAERR, "max_th must be > 0"); 430598943Sluigi 430698943Sluigi len = sizeof(int); 430798943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_lookup_depth", 430898943Sluigi &lookup_depth, &len, NULL, 0) == -1) 430998943Sluigi errx(1, "sysctlbyname(\"%s\")", 431098943Sluigi "net.inet.ip.dummynet.red_lookup_depth"); 431198943Sluigi if (lookup_depth == 0) 431298943Sluigi errx(EX_DATAERR, "net.inet.ip.dummynet.red_lookup_depth" 431398943Sluigi " must be greater than zero"); 431498943Sluigi 431598943Sluigi len = sizeof(int); 431698943Sluigi if (sysctlbyname("net.inet.ip.dummynet.red_avg_pkt_size", 431798943Sluigi &avg_pkt_size, &len, NULL, 0) == -1) 431898943Sluigi 431998943Sluigi errx(1, "sysctlbyname(\"%s\")", 432098943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size"); 432198943Sluigi if (avg_pkt_size == 0) 432298943Sluigi errx(EX_DATAERR, 432398943Sluigi "net.inet.ip.dummynet.red_avg_pkt_size must" 432498943Sluigi " be greater than zero"); 432598943Sluigi 432698943Sluigi len = sizeof(struct clockinfo); 4327117469Sluigi if (sysctlbyname("kern.clockrate", &ck, &len, NULL, 0) == -1) 432898943Sluigi errx(1, "sysctlbyname(\"%s\")", "kern.clockrate"); 432998943Sluigi 433098943Sluigi /* 433198943Sluigi * Ticks needed for sending a medium-sized packet. 433298943Sluigi * Unfortunately, when we are configuring a WF2Q+ queue, we 433398943Sluigi * do not have bandwidth information, because that is stored 433498943Sluigi * in the parent pipe, and also we have multiple queues 433598943Sluigi * competing for it. So we set s=0, which is not very 433698943Sluigi * correct. But on the other hand, why do we want RED with 433798943Sluigi * WF2Q+ ? 433898943Sluigi */ 4339117469Sluigi if (p.bandwidth==0) /* this is a WF2Q+ queue */ 434098943Sluigi s = 0; 434198943Sluigi else 4342174713Soleg s = (double)ck.hz * avg_pkt_size * 8 / p.bandwidth; 434398943Sluigi 434498943Sluigi /* 434598943Sluigi * max idle time (in ticks) before avg queue size becomes 0. 434698943Sluigi * NOTA: (3/w_q) is approx the value x so that 434798943Sluigi * (1-w_q)^x < 10^-3. 434898943Sluigi */ 4349117469Sluigi w_q = ((double)p.fs.w_q) / (1 << SCALE_RED); 435098943Sluigi idle = s * 3. / w_q; 4351117469Sluigi p.fs.lookup_step = (int)idle / lookup_depth; 4352117469Sluigi if (!p.fs.lookup_step) 4353117469Sluigi p.fs.lookup_step = 1; 435498943Sluigi weight = 1 - w_q; 4355174713Soleg for (t = p.fs.lookup_step; t > 1; --t) 4356174713Soleg weight *= 1 - w_q; 4357117469Sluigi p.fs.lookup_weight = (int)(weight * (1 << SCALE_RED)); 435898943Sluigi } 4359117469Sluigi i = do_cmd(IP_DUMMYNET_CONFIGURE, &p, sizeof p); 436098943Sluigi if (i) 436198943Sluigi err(1, "setsockopt(%s)", "IP_DUMMYNET_CONFIGURE"); 436298943Sluigi} 436398943Sluigi 436498943Sluigistatic void 4365169424Smaximget_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask) 436698943Sluigi{ 436798943Sluigi int i, l; 4368169424Smaxim char *ap, *ptr, *optr; 4369169424Smaxim struct ether_addr *mac; 4370169424Smaxim const char *macset = "0123456789abcdefABCDEF:"; 437198943Sluigi 4372169424Smaxim if (strcmp(p, "any") == 0) { 4373169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 4374169424Smaxim addr[i] = mask[i] = 0; 437598943Sluigi return; 4376169424Smaxim } 437798943Sluigi 4378169424Smaxim optr = ptr = strdup(p); 4379169424Smaxim if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) { 4380169424Smaxim l = strlen(ap); 4381169424Smaxim if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL) 4382169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4383169424Smaxim bcopy(mac, addr, ETHER_ADDR_LEN); 4384169424Smaxim } else 4385169424Smaxim errx(EX_DATAERR, "Incorrect MAC address"); 4386169424Smaxim 4387169424Smaxim if (ptr != NULL) { /* we have mask? */ 4388169424Smaxim if (p[ptr - optr - 1] == '/') { /* mask len */ 4389169424Smaxim l = strtol(ptr, &ap, 10); 4390169424Smaxim if (*ap != 0 || l > ETHER_ADDR_LEN * 8 || l < 0) 4391169424Smaxim errx(EX_DATAERR, "Incorrect mask length"); 4392169424Smaxim for (i = 0; l > 0 && i < ETHER_ADDR_LEN; l -= 8, i++) 4393169424Smaxim mask[i] = (l >= 8) ? 0xff: (~0) << (8 - l); 4394169424Smaxim } else { /* mask */ 4395169424Smaxim l = strlen(ptr); 4396169424Smaxim if (strspn(ptr, macset) != l || 4397169424Smaxim (mac = ether_aton(ptr)) == NULL) 4398169424Smaxim errx(EX_DATAERR, "Incorrect mask"); 4399169424Smaxim bcopy(mac, mask, ETHER_ADDR_LEN); 440098943Sluigi } 4401169424Smaxim } else { /* default mask: ff:ff:ff:ff:ff:ff */ 4402169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 440398943Sluigi mask[i] = 0xff; 440498943Sluigi } 4405169424Smaxim for (i = 0; i < ETHER_ADDR_LEN; i++) 440698943Sluigi addr[i] &= mask[i]; 4407169424Smaxim 4408169424Smaxim free(optr); 440998943Sluigi} 441098943Sluigi 441198943Sluigi/* 441298943Sluigi * helper function, updates the pointer to cmd with the length 441398943Sluigi * of the current command, and also cleans up the first word of 441498943Sluigi * the new command in case it has been clobbered before. 441598943Sluigi */ 441698943Sluigistatic ipfw_insn * 441798943Sluiginext_cmd(ipfw_insn *cmd) 441898943Sluigi{ 441998943Sluigi cmd += F_LEN(cmd); 442098943Sluigi bzero(cmd, sizeof(*cmd)); 442198943Sluigi return cmd; 442298943Sluigi} 442398943Sluigi 442498943Sluigi/* 4425117469Sluigi * Takes arguments and copies them into a comment 4426117469Sluigi */ 4427117469Sluigistatic void 4428117469Sluigifill_comment(ipfw_insn *cmd, int ac, char **av) 4429117469Sluigi{ 4430117469Sluigi int i, l; 4431117469Sluigi char *p = (char *)(cmd + 1); 4432117577Sluigi 4433117469Sluigi cmd->opcode = O_NOP; 4434117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)); 4435117469Sluigi 4436117469Sluigi /* Compute length of comment string. */ 4437117469Sluigi for (i = 0, l = 0; i < ac; i++) 4438117469Sluigi l += strlen(av[i]) + 1; 4439117469Sluigi if (l == 0) 4440117469Sluigi return; 4441117469Sluigi if (l > 84) 4442117469Sluigi errx(EX_DATAERR, 4443117469Sluigi "comment too long (max 80 chars)"); 4444117469Sluigi l = 1 + (l+3)/4; 4445117469Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | l; 4446117469Sluigi for (i = 0; i < ac; i++) { 4447117469Sluigi strcpy(p, av[i]); 4448117469Sluigi p += strlen(av[i]); 4449117469Sluigi *p++ = ' '; 4450117469Sluigi } 4451117469Sluigi *(--p) = '\0'; 4452117469Sluigi} 4453117577Sluigi 4454117469Sluigi/* 445598943Sluigi * A function to fill simple commands of size 1. 445698943Sluigi * Existing flags are preserved. 445798943Sluigi */ 445898943Sluigistatic void 4459117328Sluigifill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg) 446098943Sluigi{ 446198943Sluigi cmd->opcode = opcode; 446298943Sluigi cmd->len = ((cmd->len | flags) & (F_NOT | F_OR)) | 1; 446398943Sluigi cmd->arg1 = arg; 446498943Sluigi} 446598943Sluigi 446698943Sluigi/* 446798943Sluigi * Fetch and add the MAC address and type, with masks. This generates one or 446898943Sluigi * two microinstructions, and returns the pointer to the last one. 446998943Sluigi */ 447098943Sluigistatic ipfw_insn * 447198943Sluigiadd_mac(ipfw_insn *cmd, int ac, char *av[]) 447298943Sluigi{ 4473102087Sluigi ipfw_insn_mac *mac; 447498943Sluigi 4475102087Sluigi if (ac < 2) 4476102098Sluigi errx(EX_DATAERR, "MAC dst src"); 447798943Sluigi 447898943Sluigi cmd->opcode = O_MACADDR2; 447998943Sluigi cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac); 448098943Sluigi 448198943Sluigi mac = (ipfw_insn_mac *)cmd; 4482101978Sluigi get_mac_addr_mask(av[0], mac->addr, mac->mask); /* dst */ 4483169424Smaxim get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]), 4484169424Smaxim &(mac->mask[ETHER_ADDR_LEN])); /* src */ 4485102087Sluigi return cmd; 4486102087Sluigi} 448798943Sluigi 4488102087Sluigistatic ipfw_insn * 4489102087Sluigiadd_mactype(ipfw_insn *cmd, int ac, char *av) 4490102087Sluigi{ 4491102087Sluigi if (ac < 1) 4492102087Sluigi errx(EX_DATAERR, "missing MAC type"); 4493102087Sluigi if (strcmp(av, "any") != 0) { /* we have a non-null type */ 4494102087Sluigi fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE); 449598943Sluigi cmd->opcode = O_MAC_TYPE; 4496102087Sluigi return cmd; 4497102087Sluigi } else 4498102087Sluigi return NULL; 4499102087Sluigi} 450098943Sluigi 4501102087Sluigistatic ipfw_insn * 4502152923Sumeadd_proto0(ipfw_insn *cmd, char *av, u_char *protop) 4503102087Sluigi{ 4504102087Sluigi struct protoent *pe; 4505152923Sume char *ep; 4506152923Sume int proto; 4507102087Sluigi 4508156315Sume proto = strtol(av, &ep, 10); 4509156315Sume if (*ep != '\0' || proto <= 0) { 4510152923Sume if ((pe = getprotobyname(av)) == NULL) 4511152923Sume return NULL; 4512152923Sume proto = pe->p_proto; 4513152923Sume } 4514145246Sbrooks 4515152923Sume fill_cmd(cmd, O_PROTO, 0, proto); 4516152923Sume *protop = proto; 4517152923Sume return cmd; 4518152923Sume} 4519152923Sume 4520152923Sumestatic ipfw_insn * 4521152923Sumeadd_proto(ipfw_insn *cmd, char *av, u_char *protop) 4522152923Sume{ 4523152923Sume u_char proto = IPPROTO_IP; 4524152923Sume 4525156315Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4526146894Smlaier ; /* do not set O_IP4 nor O_IP6 */ 4527152923Sume else if (strcmp(av, "ip4") == 0) 4528152923Sume /* explicit "just IPv4" rule */ 4529152923Sume fill_cmd(cmd, O_IP4, 0, 0); 4530152923Sume else if (strcmp(av, "ip6") == 0) { 4531152923Sume /* explicit "just IPv6" rule */ 4532152923Sume proto = IPPROTO_IPV6; 4533152923Sume fill_cmd(cmd, O_IP6, 0, 0); 4534152923Sume } else 4535152923Sume return add_proto0(cmd, av, protop); 4536152923Sume 4537152923Sume *protop = proto; 4538152923Sume return cmd; 4539152923Sume} 4540152923Sume 4541152923Sumestatic ipfw_insn * 4542152923Sumeadd_proto_compat(ipfw_insn *cmd, char *av, u_char *protop) 4543152923Sume{ 4544152923Sume u_char proto = IPPROTO_IP; 4545152923Sume 4546152923Sume if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0) 4547152923Sume ; /* do not set O_IP4 nor O_IP6 */ 4548146894Smlaier else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0) 4549146894Smlaier /* explicit "just IPv4" rule */ 4550146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 4551146894Smlaier else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) { 4552146894Smlaier /* explicit "just IPv6" rule */ 4553152923Sume proto = IPPROTO_IPV6; 4554146894Smlaier fill_cmd(cmd, O_IP6, 0, 0); 4555152923Sume } else 4556152923Sume return add_proto0(cmd, av, protop); 4557145246Sbrooks 4558152923Sume *protop = proto; 455998943Sluigi return cmd; 456098943Sluigi} 456198943Sluigi 4562102087Sluigistatic ipfw_insn * 4563102087Sluigiadd_srcip(ipfw_insn *cmd, char *av) 4564102087Sluigi{ 4565102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4566102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4567102087Sluigi cmd->opcode = O_IP_SRC_SET; 4568130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4569130281Sru cmd->opcode = O_IP_SRC_LOOKUP; 4570102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4571102087Sluigi cmd->opcode = O_IP_SRC_ME; 4572102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4573102087Sluigi cmd->opcode = O_IP_SRC; 4574117328Sluigi else /* addr/mask */ 4575102087Sluigi cmd->opcode = O_IP_SRC_MASK; 4576102087Sluigi return cmd; 4577102087Sluigi} 4578102087Sluigi 4579102087Sluigistatic ipfw_insn * 4580102087Sluigiadd_dstip(ipfw_insn *cmd, char *av) 4581102087Sluigi{ 4582102087Sluigi fill_ip((ipfw_insn_ip *)cmd, av); 4583102087Sluigi if (cmd->opcode == O_IP_DST_SET) /* set */ 4584102087Sluigi ; 4585130281Sru else if (cmd->opcode == O_IP_DST_LOOKUP) /* table */ 4586130281Sru ; 4587102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn)) /* me */ 4588102087Sluigi cmd->opcode = O_IP_DST_ME; 4589102087Sluigi else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32)) /* one IP */ 4590102087Sluigi cmd->opcode = O_IP_DST; 4591117328Sluigi else /* addr/mask */ 4592102087Sluigi cmd->opcode = O_IP_DST_MASK; 4593102087Sluigi return cmd; 4594102087Sluigi} 4595102087Sluigi 4596102087Sluigistatic ipfw_insn * 4597102087Sluigiadd_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode) 4598102087Sluigi{ 4599140271Sbrooks if (_substrcmp(av, "any") == 0) { 4600102087Sluigi return NULL; 4601102087Sluigi } else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) { 4602102087Sluigi /* XXX todo: check that we have a protocol with ports */ 4603102087Sluigi cmd->opcode = opcode; 4604102087Sluigi return cmd; 4605102087Sluigi } 4606102087Sluigi return NULL; 4607102087Sluigi} 4608102087Sluigi 4609145246Sbrooksstatic ipfw_insn * 4610145246Sbrooksadd_src(ipfw_insn *cmd, char *av, u_char proto) 4611145246Sbrooks{ 4612145246Sbrooks struct in6_addr a; 4613158553Smlaier char *host, *ch; 4614158553Smlaier ipfw_insn *ret = NULL; 4615145246Sbrooks 4616158553Smlaier if ((host = strdup(av)) == NULL) 4617158553Smlaier return NULL; 4618158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4619158553Smlaier *ch = '\0'; 4620158553Smlaier 4621145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4622158553Smlaier inet_pton(AF_INET6, host, &a)) 4623158553Smlaier ret = add_srcip6(cmd, av); 4624145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4625161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4626161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4627158553Smlaier ret = add_srcip(cmd, av); 4628161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4629158553Smlaier ret = cmd; 4630145246Sbrooks 4631158553Smlaier free(host); 4632158553Smlaier return ret; 4633145246Sbrooks} 4634145246Sbrooks 4635145246Sbrooksstatic ipfw_insn * 4636145246Sbrooksadd_dst(ipfw_insn *cmd, char *av, u_char proto) 4637145246Sbrooks{ 4638145246Sbrooks struct in6_addr a; 4639158553Smlaier char *host, *ch; 4640158553Smlaier ipfw_insn *ret = NULL; 4641145246Sbrooks 4642158553Smlaier if ((host = strdup(av)) == NULL) 4643158553Smlaier return NULL; 4644158553Smlaier if ((ch = strrchr(host, '/')) != NULL) 4645158553Smlaier *ch = '\0'; 4646158553Smlaier 4647145246Sbrooks if (proto == IPPROTO_IPV6 || strcmp(av, "me6") == 0 || 4648158553Smlaier inet_pton(AF_INET6, host, &a)) 4649158553Smlaier ret = add_dstip6(cmd, av); 4650145246Sbrooks /* XXX: should check for IPv4, not !IPv6 */ 4651161483Sdwmalone if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 || 4652161483Sdwmalone !inet_pton(AF_INET6, host, &a))) 4653158553Smlaier ret = add_dstip(cmd, av); 4654161483Sdwmalone if (ret == NULL && strcmp(av, "any") != 0) 4655158553Smlaier ret = cmd; 4656145246Sbrooks 4657158553Smlaier free(host); 4658158553Smlaier return ret; 4659145246Sbrooks} 4660145246Sbrooks 466198943Sluigi/* 466298943Sluigi * Parse arguments and assemble the microinstructions which make up a rule. 466398943Sluigi * Rules are added into the 'rulebuf' and then copied in the correct order 466498943Sluigi * into the actual rule. 466598943Sluigi * 4666136071Sgreen * The syntax for a rule starts with the action, followed by 4667136071Sgreen * optional action parameters, and the various match patterns. 4668108533Sschweikh * In the assembled microcode, the first opcode must be an O_PROBE_STATE 466998943Sluigi * (generated if the rule includes a keep-state option), then the 4670136071Sgreen * various match patterns, log/altq actions, and the actual action. 4671106505Smaxim * 467298943Sluigi */ 4673187767Sluigivoid 4674187767Sluigiipfw_add(int ac, char *av[]) 467598943Sluigi{ 467698943Sluigi /* 467798943Sluigi * rules are added into the 'rulebuf' and then copied in 467898943Sluigi * the correct order into the actual rule. 467998943Sluigi * Some things that need to go out of order (prob, action etc.) 468098943Sluigi * go into actbuf[]. 468198943Sluigi */ 4682117328Sluigi static uint32_t rulebuf[255], actbuf[255], cmdbuf[255]; 468398943Sluigi 4684117469Sluigi ipfw_insn *src, *dst, *cmd, *action, *prev=NULL; 4685102087Sluigi ipfw_insn *first_cmd; /* first match pattern */ 468698943Sluigi 468798943Sluigi struct ip_fw *rule; 468898943Sluigi 468998943Sluigi /* 469098943Sluigi * various flags used to record that we entered some fields. 469198943Sluigi */ 4692101116Sluigi ipfw_insn *have_state = NULL; /* check-state or keep-state */ 4693158879Soleg ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL; 4694134475Smaxim size_t len; 469598943Sluigi 469698943Sluigi int i; 469798943Sluigi 469898943Sluigi int open_par = 0; /* open parenthesis ( */ 469998943Sluigi 470098943Sluigi /* proto is here because it is used to fetch ports */ 470198943Sluigi u_char proto = IPPROTO_IP; /* default protocol */ 470298943Sluigi 4703107289Sluigi double match_prob = 1; /* match probability, default is always match */ 4704107289Sluigi 470598943Sluigi bzero(actbuf, sizeof(actbuf)); /* actions go here */ 470698943Sluigi bzero(cmdbuf, sizeof(cmdbuf)); 470798943Sluigi bzero(rulebuf, sizeof(rulebuf)); 470898943Sluigi 470998943Sluigi rule = (struct ip_fw *)rulebuf; 471098943Sluigi cmd = (ipfw_insn *)cmdbuf; 471198943Sluigi action = (ipfw_insn *)actbuf; 471298943Sluigi 471398943Sluigi av++; ac--; 471498943Sluigi 471598943Sluigi /* [rule N] -- Rule number optional */ 471698943Sluigi if (ac && isdigit(**av)) { 471798943Sluigi rule->rulenum = atoi(*av); 471898943Sluigi av++; 471998943Sluigi ac--; 472098943Sluigi } 472198943Sluigi 4722117655Sluigi /* [set N] -- set number (0..RESVD_SET), optional */ 4723140271Sbrooks if (ac > 1 && _substrcmp(*av, "set") == 0) { 4724101628Sluigi int set = strtoul(av[1], NULL, 10); 4725117655Sluigi if (set < 0 || set > RESVD_SET) 4726101628Sluigi errx(EX_DATAERR, "illegal set %s", av[1]); 4727101628Sluigi rule->set = set; 4728101628Sluigi av += 2; ac -= 2; 4729101628Sluigi } 4730101628Sluigi 473198943Sluigi /* [prob D] -- match probability, optional */ 4732140271Sbrooks if (ac > 1 && _substrcmp(*av, "prob") == 0) { 4733107289Sluigi match_prob = strtod(av[1], NULL); 473498943Sluigi 4735107289Sluigi if (match_prob <= 0 || match_prob > 1) 473698943Sluigi errx(EX_DATAERR, "illegal match prob. %s", av[1]); 473798943Sluigi av += 2; ac -= 2; 473898943Sluigi } 473998943Sluigi 474098943Sluigi /* action -- mandatory */ 474198943Sluigi NEED1("missing action"); 474298943Sluigi i = match_token(rule_actions, *av); 474398943Sluigi ac--; av++; 474498943Sluigi action->len = 1; /* default */ 474598943Sluigi switch(i) { 474698943Sluigi case TOK_CHECKSTATE: 4747101116Sluigi have_state = action; 474898943Sluigi action->opcode = O_CHECK_STATE; 474998943Sluigi break; 475098943Sluigi 475198943Sluigi case TOK_ACCEPT: 475298943Sluigi action->opcode = O_ACCEPT; 475398943Sluigi break; 475498943Sluigi 475598943Sluigi case TOK_DENY: 475698943Sluigi action->opcode = O_DENY; 475799475Sluigi action->arg1 = 0; 475898943Sluigi break; 475998943Sluigi 476099475Sluigi case TOK_REJECT: 476199475Sluigi action->opcode = O_REJECT; 476299475Sluigi action->arg1 = ICMP_UNREACH_HOST; 476399475Sluigi break; 476499475Sluigi 476599475Sluigi case TOK_RESET: 476699475Sluigi action->opcode = O_REJECT; 476799475Sluigi action->arg1 = ICMP_REJECT_RST; 476899475Sluigi break; 476999475Sluigi 4770149020Sbz case TOK_RESET6: 4771149020Sbz action->opcode = O_UNREACH6; 4772149020Sbz action->arg1 = ICMP6_UNREACH_RST; 4773149020Sbz break; 4774149020Sbz 477599475Sluigi case TOK_UNREACH: 477699475Sluigi action->opcode = O_REJECT; 477799475Sluigi NEED1("missing reject code"); 477899475Sluigi fill_reject_code(&action->arg1, *av); 477999475Sluigi ac--; av++; 478099475Sluigi break; 478199475Sluigi 4782149020Sbz case TOK_UNREACH6: 4783149020Sbz action->opcode = O_UNREACH6; 4784149020Sbz NEED1("missing unreach code"); 4785149020Sbz fill_unreach6_code(&action->arg1, *av); 4786149020Sbz ac--; av++; 4787149020Sbz break; 4788149020Sbz 478998943Sluigi case TOK_COUNT: 479098943Sluigi action->opcode = O_COUNT; 479198943Sluigi break; 479298943Sluigi 4793176517Spiso case TOK_NAT: 4794176517Spiso action->opcode = O_NAT; 4795176517Spiso action->len = F_INSN_SIZE(ipfw_insn_nat); 4796176517Spiso goto chkarg; 4797178888Sjulian 479898943Sluigi case TOK_QUEUE: 4799153374Sglebius action->opcode = O_QUEUE; 4800153374Sglebius goto chkarg; 480198943Sluigi case TOK_PIPE: 4802153374Sglebius action->opcode = O_PIPE; 4803153374Sglebius goto chkarg; 480498943Sluigi case TOK_SKIPTO: 4805153374Sglebius action->opcode = O_SKIPTO; 4806153374Sglebius goto chkarg; 4807153374Sglebius case TOK_NETGRAPH: 4808153374Sglebius action->opcode = O_NETGRAPH; 4809153374Sglebius goto chkarg; 4810153374Sglebius case TOK_NGTEE: 4811153374Sglebius action->opcode = O_NGTEE; 4812153374Sglebius goto chkarg; 481398943Sluigi case TOK_DIVERT: 4814153374Sglebius action->opcode = O_DIVERT; 4815153374Sglebius goto chkarg; 481698943Sluigi case TOK_TEE: 4817153374Sglebius action->opcode = O_TEE; 4818153374Sglebiuschkarg: 4819153374Sglebius if (!ac) 4820153374Sglebius errx(EX_USAGE, "missing argument for %s", *(av - 1)); 4821153374Sglebius if (isdigit(**av)) { 4822153374Sglebius action->arg1 = strtoul(*av, NULL, 10); 4823153374Sglebius if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG) 4824153374Sglebius errx(EX_DATAERR, "illegal argument for %s", 4825153374Sglebius *(av - 1)); 4826187762Sluigi } else if (_substrcmp(*av, "tablearg") == 0) { 4827153374Sglebius action->arg1 = IP_FW_TABLEARG; 4828153374Sglebius } else if (i == TOK_DIVERT || i == TOK_TEE) { 482998943Sluigi struct servent *s; 483098943Sluigi setservent(1); 483198943Sluigi s = getservbyname(av[0], "divert"); 483298943Sluigi if (s != NULL) 483398943Sluigi action->arg1 = ntohs(s->s_port); 483498943Sluigi else 483598943Sluigi errx(EX_DATAERR, "illegal divert/tee port"); 4836153374Sglebius } else 4837153374Sglebius errx(EX_DATAERR, "illegal argument for %s", *(av - 1)); 483898943Sluigi ac--; av++; 483998943Sluigi break; 484098943Sluigi 484198943Sluigi case TOK_FORWARD: { 484298943Sluigi ipfw_insn_sa *p = (ipfw_insn_sa *)action; 484398943Sluigi char *s, *end; 484498943Sluigi 484598943Sluigi NEED1("missing forward address[:port]"); 484698943Sluigi 484798943Sluigi action->opcode = O_FORWARD_IP; 484898943Sluigi action->len = F_INSN_SIZE(ipfw_insn_sa); 484998943Sluigi 485098943Sluigi p->sa.sin_len = sizeof(struct sockaddr_in); 485198943Sluigi p->sa.sin_family = AF_INET; 485298943Sluigi p->sa.sin_port = 0; 485398943Sluigi /* 485498943Sluigi * locate the address-port separator (':' or ',') 485598943Sluigi */ 485698943Sluigi s = strchr(*av, ':'); 485798943Sluigi if (s == NULL) 485898943Sluigi s = strchr(*av, ','); 485998943Sluigi if (s != NULL) { 486098943Sluigi *(s++) = '\0'; 486198943Sluigi i = strtoport(s, &end, 0 /* base */, 0 /* proto */); 486298943Sluigi if (s == end) 486398943Sluigi errx(EX_DATAERR, 486498943Sluigi "illegal forwarding port ``%s''", s); 4865103241Sluigi p->sa.sin_port = (u_short)i; 486698943Sluigi } 4867161456Sjulian if (_substrcmp(*av, "tablearg") == 0) 4868161456Sjulian p->sa.sin_addr.s_addr = INADDR_ANY; 4869161456Sjulian else 4870161424Sjulian lookup_host(*av, &(p->sa.sin_addr)); 487198943Sluigi ac--; av++; 487298943Sluigi break; 4873161424Sjulian } 4874117469Sluigi case TOK_COMMENT: 4875117469Sluigi /* pretend it is a 'count' rule followed by the comment */ 4876117469Sluigi action->opcode = O_COUNT; 4877117469Sluigi ac++; av--; /* go back... */ 4878117469Sluigi break; 4879178888Sjulian 4880178888Sjulian case TOK_SETFIB: 4881178888Sjulian { 4882178888Sjulian int numfibs; 4883178916Sjulian size_t intsize = sizeof(int); 4884178888Sjulian 4885178888Sjulian action->opcode = O_SETFIB; 4886178888Sjulian NEED1("missing fib number"); 4887178888Sjulian action->arg1 = strtoul(*av, NULL, 10); 4888178916Sjulian if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1) 4889178888Sjulian errx(EX_DATAERR, "fibs not suported.\n"); 4890178888Sjulian if (action->arg1 >= numfibs) /* Temporary */ 4891178888Sjulian errx(EX_DATAERR, "fib too large.\n"); 4892178888Sjulian ac--; av++; 4893178888Sjulian break; 4894178888Sjulian } 4895165648Spiso 489698943Sluigi default: 4897102087Sluigi errx(EX_DATAERR, "invalid action %s\n", av[-1]); 489898943Sluigi } 489998943Sluigi action = next_cmd(action); 490098943Sluigi 490198943Sluigi /* 4902136071Sgreen * [altq queuename] -- altq tag, optional 490398943Sluigi * [log [logamount N]] -- log, optional 490498943Sluigi * 4905136071Sgreen * If they exist, it go first in the cmdbuf, but then it is 490698943Sluigi * skipped in the copy section to the end of the buffer. 490798943Sluigi */ 4908136071Sgreen while (ac != 0 && (i = match_token(rule_action_params, *av)) != -1) { 4909136071Sgreen ac--; av++; 4910136071Sgreen switch (i) { 4911136071Sgreen case TOK_LOG: 4912136071Sgreen { 4913136071Sgreen ipfw_insn_log *c = (ipfw_insn_log *)cmd; 4914136071Sgreen int l; 491598943Sluigi 4916136071Sgreen if (have_log) 4917136071Sgreen errx(EX_DATAERR, 4918136071Sgreen "log cannot be specified more than once"); 4919136071Sgreen have_log = (ipfw_insn *)c; 4920136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_log); 4921136071Sgreen cmd->opcode = O_LOG; 4922140271Sbrooks if (ac && _substrcmp(*av, "logamount") == 0) { 4923136071Sgreen ac--; av++; 4924136071Sgreen NEED1("logamount requires argument"); 4925136071Sgreen l = atoi(*av); 4926136071Sgreen if (l < 0) 4927136071Sgreen errx(EX_DATAERR, 4928136071Sgreen "logamount must be positive"); 4929136071Sgreen c->max_log = l; 4930136071Sgreen ac--; av++; 4931136071Sgreen } else { 4932136071Sgreen len = sizeof(c->max_log); 4933136071Sgreen if (sysctlbyname("net.inet.ip.fw.verbose_limit", 4934136071Sgreen &c->max_log, &len, NULL, 0) == -1) 4935136071Sgreen errx(1, "sysctlbyname(\"%s\")", 4936136071Sgreen "net.inet.ip.fw.verbose_limit"); 4937136071Sgreen } 4938136071Sgreen } 4939136071Sgreen break; 4940136071Sgreen 4941136071Sgreen case TOK_ALTQ: 4942136071Sgreen { 4943136071Sgreen ipfw_insn_altq *a = (ipfw_insn_altq *)cmd; 4944136071Sgreen 4945136071Sgreen NEED1("missing altq queue name"); 4946136071Sgreen if (have_altq) 4947136071Sgreen errx(EX_DATAERR, 4948136071Sgreen "altq cannot be specified more than once"); 4949136071Sgreen have_altq = (ipfw_insn *)a; 4950136071Sgreen cmd->len = F_INSN_SIZE(ipfw_insn_altq); 4951136071Sgreen cmd->opcode = O_ALTQ; 4952136071Sgreen fill_altq_qid(&a->qid, *av); 495398943Sluigi ac--; av++; 4954136071Sgreen } 4955136071Sgreen break; 4956136071Sgreen 4957158879Soleg case TOK_TAG: 4958159636Soleg case TOK_UNTAG: { 4959159636Soleg uint16_t tag; 4960159636Soleg 4961158879Soleg if (have_tag) 4962159636Soleg errx(EX_USAGE, "tag and untag cannot be " 4963159636Soleg "specified more than once"); 4964182823Srik GET_UINT_ARG(tag, 1, IPFW_DEFAULT_RULE - 1, i, 4965182823Srik rule_action_params); 4966158879Soleg have_tag = cmd; 4967159636Soleg fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag); 4968158879Soleg ac--; av++; 4969158879Soleg break; 4970159636Soleg } 4971158879Soleg 4972136071Sgreen default: 4973136071Sgreen abort(); 497498943Sluigi } 497598943Sluigi cmd = next_cmd(cmd); 497698943Sluigi } 497798943Sluigi 4978101116Sluigi if (have_state) /* must be a check-state, we are done */ 497998943Sluigi goto done; 498098943Sluigi 498198943Sluigi#define OR_START(target) \ 498298943Sluigi if (ac && (*av[0] == '(' || *av[0] == '{')) { \ 498398943Sluigi if (open_par) \ 498498943Sluigi errx(EX_USAGE, "nested \"(\" not allowed\n"); \ 4985101641Sluigi prev = NULL; \ 498698943Sluigi open_par = 1; \ 498798943Sluigi if ( (av[0])[1] == '\0') { \ 498898943Sluigi ac--; av++; \ 498998943Sluigi } else \ 499098943Sluigi (*av)++; \ 499198943Sluigi } \ 499298943Sluigi target: \ 499398943Sluigi 499498943Sluigi 499598943Sluigi#define CLOSE_PAR \ 499698943Sluigi if (open_par) { \ 499798943Sluigi if (ac && ( \ 4998140271Sbrooks strcmp(*av, ")") == 0 || \ 4999140271Sbrooks strcmp(*av, "}") == 0)) { \ 5000101641Sluigi prev = NULL; \ 500198943Sluigi open_par = 0; \ 500298943Sluigi ac--; av++; \ 500398943Sluigi } else \ 500498943Sluigi errx(EX_USAGE, "missing \")\"\n"); \ 500598943Sluigi } 5006106505Smaxim 500798943Sluigi#define NOT_BLOCK \ 5008140271Sbrooks if (ac && _substrcmp(*av, "not") == 0) { \ 500998943Sluigi if (cmd->len & F_NOT) \ 501098943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); \ 501198943Sluigi cmd->len |= F_NOT; \ 501298943Sluigi ac--; av++; \ 501398943Sluigi } 501498943Sluigi 501598943Sluigi#define OR_BLOCK(target) \ 5016140271Sbrooks if (ac && _substrcmp(*av, "or") == 0) { \ 501798943Sluigi if (prev == NULL || open_par == 0) \ 501898943Sluigi errx(EX_DATAERR, "invalid OR block"); \ 501998943Sluigi prev->len |= F_OR; \ 502098943Sluigi ac--; av++; \ 502198943Sluigi goto target; \ 502298943Sluigi } \ 502398943Sluigi CLOSE_PAR; 502498943Sluigi 5025102087Sluigi first_cmd = cmd; 5026102098Sluigi 5027102098Sluigi#if 0 502898943Sluigi /* 5029102087Sluigi * MAC addresses, optional. 5030102087Sluigi * If we have this, we skip the part "proto from src to dst" 5031102087Sluigi * and jump straight to the option parsing. 5032102087Sluigi */ 5033102087Sluigi NOT_BLOCK; 5034102087Sluigi NEED1("missing protocol"); 5035140271Sbrooks if (_substrcmp(*av, "MAC") == 0 || 5036140271Sbrooks _substrcmp(*av, "mac") == 0) { 5037102087Sluigi ac--; av++; /* the "MAC" keyword */ 5038102087Sluigi add_mac(cmd, ac, av); /* exits in case of errors */ 5039102087Sluigi cmd = next_cmd(cmd); 5040102087Sluigi ac -= 2; av += 2; /* dst-mac and src-mac */ 5041102087Sluigi NOT_BLOCK; 5042102087Sluigi NEED1("missing mac type"); 5043102087Sluigi if (add_mactype(cmd, ac, av[0])) 5044102087Sluigi cmd = next_cmd(cmd); 5045102087Sluigi ac--; av++; /* any or mac-type */ 5046102087Sluigi goto read_options; 5047102087Sluigi } 5048102098Sluigi#endif 5049102087Sluigi 5050102087Sluigi /* 505198943Sluigi * protocol, mandatory 505298943Sluigi */ 505398943Sluigi OR_START(get_proto); 505498943Sluigi NOT_BLOCK; 505598943Sluigi NEED1("missing protocol"); 5056152923Sume if (add_proto_compat(cmd, *av, &proto)) { 5057102087Sluigi av++; ac--; 5058147105Smlaier if (F_LEN(cmd) != 0) { 5059102087Sluigi prev = cmd; 5060102087Sluigi cmd = next_cmd(cmd); 5061102087Sluigi } 5062102098Sluigi } else if (first_cmd != cmd) { 5063116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", *av); 5064102098Sluigi } else 5065102098Sluigi goto read_options; 506698943Sluigi OR_BLOCK(get_proto); 506798943Sluigi 506898943Sluigi /* 5069102087Sluigi * "from", mandatory 507098943Sluigi */ 5071140271Sbrooks if (!ac || _substrcmp(*av, "from") != 0) 507298943Sluigi errx(EX_USAGE, "missing ``from''"); 507398943Sluigi ac--; av++; 507498943Sluigi 507598943Sluigi /* 507698943Sluigi * source IP, mandatory 507798943Sluigi */ 507898943Sluigi OR_START(source_ip); 507998943Sluigi NOT_BLOCK; /* optional "not" */ 508098943Sluigi NEED1("missing source address"); 5081145246Sbrooks if (add_src(cmd, *av, proto)) { 5082102087Sluigi ac--; av++; 5083102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5084102087Sluigi prev = cmd; 5085102087Sluigi cmd = next_cmd(cmd); 5086102087Sluigi } 5087145246Sbrooks } else 5088145246Sbrooks errx(EX_USAGE, "bad source address %s", *av); 508998943Sluigi OR_BLOCK(source_ip); 509098943Sluigi 509198943Sluigi /* 509298943Sluigi * source ports, optional 509398943Sluigi */ 509498943Sluigi NOT_BLOCK; /* optional "not" */ 5095101641Sluigi if (ac) { 5096140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5097102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5098102087Sluigi ac--; av++; 5099102087Sluigi if (F_LEN(cmd) != 0) 5100102087Sluigi cmd = next_cmd(cmd); 5101101641Sluigi } 510298943Sluigi } 510398943Sluigi 510498943Sluigi /* 5105102087Sluigi * "to", mandatory 510698943Sluigi */ 5107140271Sbrooks if (!ac || _substrcmp(*av, "to") != 0) 510898943Sluigi errx(EX_USAGE, "missing ``to''"); 510998943Sluigi av++; ac--; 511098943Sluigi 511198943Sluigi /* 511298943Sluigi * destination, mandatory 511398943Sluigi */ 511498943Sluigi OR_START(dest_ip); 511598943Sluigi NOT_BLOCK; /* optional "not" */ 511698943Sluigi NEED1("missing dst address"); 5117145246Sbrooks if (add_dst(cmd, *av, proto)) { 5118102087Sluigi ac--; av++; 5119102087Sluigi if (F_LEN(cmd) != 0) { /* ! any */ 5120102087Sluigi prev = cmd; 5121102087Sluigi cmd = next_cmd(cmd); 5122102087Sluigi } 5123145246Sbrooks } else 5124145246Sbrooks errx( EX_USAGE, "bad destination address %s", *av); 512598943Sluigi OR_BLOCK(dest_ip); 512698943Sluigi 512798943Sluigi /* 512898943Sluigi * dest. ports, optional 512998943Sluigi */ 513098943Sluigi NOT_BLOCK; /* optional "not" */ 5131101641Sluigi if (ac) { 5132140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5133102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5134102087Sluigi ac--; av++; 5135102087Sluigi if (F_LEN(cmd) != 0) 5136102087Sluigi cmd = next_cmd(cmd); 5137101641Sluigi } 513898943Sluigi } 513998943Sluigi 514098943Sluigiread_options: 5141102087Sluigi if (ac && first_cmd == cmd) { 5142102087Sluigi /* 5143102087Sluigi * nothing specified so far, store in the rule to ease 5144102087Sluigi * printout later. 5145102087Sluigi */ 5146102087Sluigi rule->_pad = 1; 5147102087Sluigi } 514898943Sluigi prev = NULL; 514998943Sluigi while (ac) { 5150101641Sluigi char *s; 5151101641Sluigi ipfw_insn_u32 *cmd32; /* alias for cmd */ 515298943Sluigi 5153101641Sluigi s = *av; 5154101641Sluigi cmd32 = (ipfw_insn_u32 *)cmd; 5155101641Sluigi 515698943Sluigi if (*s == '!') { /* alternate syntax for NOT */ 515798943Sluigi if (cmd->len & F_NOT) 515898943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 515998943Sluigi cmd->len = F_NOT; 516098943Sluigi s++; 516198943Sluigi } 516298943Sluigi i = match_token(rule_options, s); 516398943Sluigi ac--; av++; 516498943Sluigi switch(i) { 516598943Sluigi case TOK_NOT: 516698943Sluigi if (cmd->len & F_NOT) 516798943Sluigi errx(EX_USAGE, "double \"not\" not allowed\n"); 516898943Sluigi cmd->len = F_NOT; 516998943Sluigi break; 517098943Sluigi 517198943Sluigi case TOK_OR: 5172101641Sluigi if (open_par == 0 || prev == NULL) 517398943Sluigi errx(EX_USAGE, "invalid \"or\" block\n"); 517498943Sluigi prev->len |= F_OR; 517598943Sluigi break; 5176101641Sluigi 5177101641Sluigi case TOK_STARTBRACE: 5178101641Sluigi if (open_par) 5179101641Sluigi errx(EX_USAGE, "+nested \"(\" not allowed\n"); 5180101641Sluigi open_par = 1; 5181101641Sluigi break; 5182101641Sluigi 5183101641Sluigi case TOK_ENDBRACE: 5184101641Sluigi if (!open_par) 5185101641Sluigi errx(EX_USAGE, "+missing \")\"\n"); 5186101641Sluigi open_par = 0; 5187102087Sluigi prev = NULL; 5188101641Sluigi break; 5189101641Sluigi 519098943Sluigi case TOK_IN: 519198943Sluigi fill_cmd(cmd, O_IN, 0, 0); 519298943Sluigi break; 519398943Sluigi 519498943Sluigi case TOK_OUT: 519598943Sluigi cmd->len ^= F_NOT; /* toggle F_NOT */ 519698943Sluigi fill_cmd(cmd, O_IN, 0, 0); 519798943Sluigi break; 519898943Sluigi 5199136073Sgreen case TOK_DIVERTED: 5200136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 3); 5201136073Sgreen break; 5202136073Sgreen 5203136073Sgreen case TOK_DIVERTEDLOOPBACK: 5204136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 1); 5205136073Sgreen break; 5206136073Sgreen 5207136073Sgreen case TOK_DIVERTEDOUTPUT: 5208136073Sgreen fill_cmd(cmd, O_DIVERTED, 0, 2); 5209136073Sgreen break; 5210136073Sgreen 521198943Sluigi case TOK_FRAG: 521298943Sluigi fill_cmd(cmd, O_FRAG, 0, 0); 521398943Sluigi break; 521498943Sluigi 521598943Sluigi case TOK_LAYER2: 521698943Sluigi fill_cmd(cmd, O_LAYER2, 0, 0); 521798943Sluigi break; 521898943Sluigi 521998943Sluigi case TOK_XMIT: 522098943Sluigi case TOK_RECV: 522198943Sluigi case TOK_VIA: 522298943Sluigi NEED1("recv, xmit, via require interface name" 522398943Sluigi " or address"); 522498943Sluigi fill_iface((ipfw_insn_if *)cmd, av[0]); 522598943Sluigi ac--; av++; 522698943Sluigi if (F_LEN(cmd) == 0) /* not a valid address */ 522798943Sluigi break; 522898943Sluigi if (i == TOK_XMIT) 522998943Sluigi cmd->opcode = O_XMIT; 523098943Sluigi else if (i == TOK_RECV) 523198943Sluigi cmd->opcode = O_RECV; 523298943Sluigi else if (i == TOK_VIA) 523398943Sluigi cmd->opcode = O_VIA; 523498943Sluigi break; 523598943Sluigi 523699475Sluigi case TOK_ICMPTYPES: 523799475Sluigi NEED1("icmptypes requires list of types"); 523899475Sluigi fill_icmptypes((ipfw_insn_u32 *)cmd, *av); 523999475Sluigi av++; ac--; 524099475Sluigi break; 5241145246Sbrooks 5242145246Sbrooks case TOK_ICMP6TYPES: 5243145246Sbrooks NEED1("icmptypes requires list of types"); 5244145246Sbrooks fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av); 5245145246Sbrooks av++; ac--; 5246145246Sbrooks break; 524799475Sluigi 524898943Sluigi case TOK_IPTTL: 524998943Sluigi NEED1("ipttl requires TTL"); 5250116690Sluigi if (strpbrk(*av, "-,")) { 5251116690Sluigi if (!add_ports(cmd, *av, 0, O_IPTTL)) 5252116690Sluigi errx(EX_DATAERR, "invalid ipttl %s", *av); 5253116690Sluigi } else 5254116690Sluigi fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0)); 525598943Sluigi ac--; av++; 525698943Sluigi break; 525798943Sluigi 525898943Sluigi case TOK_IPID: 5259116690Sluigi NEED1("ipid requires id"); 5260116690Sluigi if (strpbrk(*av, "-,")) { 5261116690Sluigi if (!add_ports(cmd, *av, 0, O_IPID)) 5262116690Sluigi errx(EX_DATAERR, "invalid ipid %s", *av); 5263116690Sluigi } else 5264116690Sluigi fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0)); 526598943Sluigi ac--; av++; 526698943Sluigi break; 526798943Sluigi 526898943Sluigi case TOK_IPLEN: 526998943Sluigi NEED1("iplen requires length"); 5270116690Sluigi if (strpbrk(*av, "-,")) { 5271116690Sluigi if (!add_ports(cmd, *av, 0, O_IPLEN)) 5272116690Sluigi errx(EX_DATAERR, "invalid ip len %s", *av); 5273116690Sluigi } else 5274116690Sluigi fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0)); 527598943Sluigi ac--; av++; 527698943Sluigi break; 527798943Sluigi 527898943Sluigi case TOK_IPVER: 527998943Sluigi NEED1("ipver requires version"); 528098943Sluigi fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0)); 528198943Sluigi ac--; av++; 528298943Sluigi break; 528398943Sluigi 528499475Sluigi case TOK_IPPRECEDENCE: 528599475Sluigi NEED1("ipprecedence requires value"); 528699475Sluigi fill_cmd(cmd, O_IPPRECEDENCE, 0, 528799475Sluigi (strtoul(*av, NULL, 0) & 7) << 5); 528899475Sluigi ac--; av++; 528999475Sluigi break; 529099475Sluigi 529198943Sluigi case TOK_IPOPTS: 529298943Sluigi NEED1("missing argument for ipoptions"); 5293101116Sluigi fill_flags(cmd, O_IPOPT, f_ipopts, *av); 529498943Sluigi ac--; av++; 529598943Sluigi break; 529698943Sluigi 529799475Sluigi case TOK_IPTOS: 529899475Sluigi NEED1("missing argument for iptos"); 5299101116Sluigi fill_flags(cmd, O_IPTOS, f_iptos, *av); 530099475Sluigi ac--; av++; 530199475Sluigi break; 530299475Sluigi 530398943Sluigi case TOK_UID: 530498943Sluigi NEED1("uid requires argument"); 530598943Sluigi { 530698943Sluigi char *end; 530798943Sluigi uid_t uid; 530898943Sluigi struct passwd *pwd; 530998943Sluigi 531098943Sluigi cmd->opcode = O_UID; 531198943Sluigi uid = strtoul(*av, &end, 0); 531298943Sluigi pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av); 531398943Sluigi if (pwd == NULL) 531498943Sluigi errx(EX_DATAERR, "uid \"%s\" nonexistent", *av); 5315106504Smaxim cmd32->d[0] = pwd->pw_uid; 5316135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 531798943Sluigi ac--; av++; 531898943Sluigi } 531998943Sluigi break; 532098943Sluigi 532198943Sluigi case TOK_GID: 532298943Sluigi NEED1("gid requires argument"); 532398943Sluigi { 532498943Sluigi char *end; 532598943Sluigi gid_t gid; 532698943Sluigi struct group *grp; 532798943Sluigi 532898943Sluigi cmd->opcode = O_GID; 532998943Sluigi gid = strtoul(*av, &end, 0); 533098943Sluigi grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av); 533198943Sluigi if (grp == NULL) 533298943Sluigi errx(EX_DATAERR, "gid \"%s\" nonexistent", *av); 5333106504Smaxim cmd32->d[0] = grp->gr_gid; 5334135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 533598943Sluigi ac--; av++; 533698943Sluigi } 533798943Sluigi break; 533898943Sluigi 5339133600Scsjp case TOK_JAIL: 5340133600Scsjp NEED1("jail requires argument"); 5341133600Scsjp { 5342133600Scsjp char *end; 5343133600Scsjp int jid; 5344133600Scsjp 5345133600Scsjp cmd->opcode = O_JAIL; 5346133600Scsjp jid = (int)strtol(*av, &end, 0); 5347133600Scsjp if (jid < 0 || *end != '\0') 5348133600Scsjp errx(EX_DATAERR, "jail requires prison ID"); 5349135554Scsjp cmd32->d[0] = (uint32_t)jid; 5350135089Scsjp cmd->len |= F_INSN_SIZE(ipfw_insn_u32); 5351133600Scsjp ac--; av++; 5352133600Scsjp } 5353133600Scsjp break; 5354133600Scsjp 535598943Sluigi case TOK_ESTAB: 535698943Sluigi fill_cmd(cmd, O_ESTAB, 0, 0); 535798943Sluigi break; 535898943Sluigi 535998943Sluigi case TOK_SETUP: 536098943Sluigi fill_cmd(cmd, O_TCPFLAGS, 0, 536198943Sluigi (TH_SYN) | ( (TH_ACK) & 0xff) <<8 ); 536298943Sluigi break; 536398943Sluigi 5364136075Sgreen case TOK_TCPDATALEN: 5365136075Sgreen NEED1("tcpdatalen requires length"); 5366136075Sgreen if (strpbrk(*av, "-,")) { 5367136075Sgreen if (!add_ports(cmd, *av, 0, O_TCPDATALEN)) 5368136075Sgreen errx(EX_DATAERR, "invalid tcpdata len %s", *av); 5369136075Sgreen } else 5370136075Sgreen fill_cmd(cmd, O_TCPDATALEN, 0, 5371136075Sgreen strtoul(*av, NULL, 0)); 5372136075Sgreen ac--; av++; 5373136075Sgreen break; 5374136075Sgreen 537598943Sluigi case TOK_TCPOPTS: 537698943Sluigi NEED1("missing argument for tcpoptions"); 537798943Sluigi fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av); 537898943Sluigi ac--; av++; 537998943Sluigi break; 538098943Sluigi 538198943Sluigi case TOK_TCPSEQ: 538298943Sluigi case TOK_TCPACK: 538398943Sluigi NEED1("tcpseq/tcpack requires argument"); 538498943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_u32); 538598943Sluigi cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK; 538698943Sluigi cmd32->d[0] = htonl(strtoul(*av, NULL, 0)); 538798943Sluigi ac--; av++; 538898943Sluigi break; 538998943Sluigi 539098943Sluigi case TOK_TCPWIN: 539198943Sluigi NEED1("tcpwin requires length"); 539298943Sluigi fill_cmd(cmd, O_TCPWIN, 0, 539398943Sluigi htons(strtoul(*av, NULL, 0))); 539498943Sluigi ac--; av++; 539598943Sluigi break; 539698943Sluigi 539798943Sluigi case TOK_TCPFLAGS: 539898943Sluigi NEED1("missing argument for tcpflags"); 539998943Sluigi cmd->opcode = O_TCPFLAGS; 540098943Sluigi fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av); 540198943Sluigi ac--; av++; 540298943Sluigi break; 540398943Sluigi 540498943Sluigi case TOK_KEEPSTATE: 5405101641Sluigi if (open_par) 5406101641Sluigi errx(EX_USAGE, "keep-state cannot be part " 5407101641Sluigi "of an or block"); 540899909Sluigi if (have_state) 5409101116Sluigi errx(EX_USAGE, "only one of keep-state " 541099909Sluigi "and limit is allowed"); 5411101116Sluigi have_state = cmd; 541298943Sluigi fill_cmd(cmd, O_KEEP_STATE, 0, 0); 541398943Sluigi break; 541498943Sluigi 5415159636Soleg case TOK_LIMIT: { 5416159636Soleg ipfw_insn_limit *c = (ipfw_insn_limit *)cmd; 5417159636Soleg int val; 5418159636Soleg 5419101641Sluigi if (open_par) 5420159636Soleg errx(EX_USAGE, 5421159636Soleg "limit cannot be part of an or block"); 542299909Sluigi if (have_state) 5423168819Smaxim errx(EX_USAGE, "only one of keep-state and " 5424159636Soleg "limit is allowed"); 5425101116Sluigi have_state = cmd; 542698943Sluigi 542798943Sluigi cmd->len = F_INSN_SIZE(ipfw_insn_limit); 542898943Sluigi cmd->opcode = O_LIMIT; 5429159636Soleg c->limit_mask = c->conn_limit = 0; 543098943Sluigi 5431159636Soleg while (ac > 0) { 5432159636Soleg if ((val = match_token(limit_masks, *av)) <= 0) 543398943Sluigi break; 543498943Sluigi c->limit_mask |= val; 543598943Sluigi ac--; av++; 543698943Sluigi } 5437159636Soleg 543898943Sluigi if (c->limit_mask == 0) 5439159636Soleg errx(EX_USAGE, "limit: missing limit mask"); 5440159636Soleg 5441182823Srik GET_UINT_ARG(c->conn_limit, 1, IPFW_DEFAULT_RULE - 1, 5442182823Srik TOK_LIMIT, rule_options); 5443159636Soleg 544498943Sluigi ac--; av++; 544598943Sluigi break; 5446159636Soleg } 544798943Sluigi 5448102087Sluigi case TOK_PROTO: 5449102087Sluigi NEED1("missing protocol"); 5450145246Sbrooks if (add_proto(cmd, *av, &proto)) { 5451102087Sluigi ac--; av++; 5452102098Sluigi } else 5453116438Smaxim errx(EX_DATAERR, "invalid protocol ``%s''", 5454116438Smaxim *av); 5455102087Sluigi break; 5456106505Smaxim 5457102087Sluigi case TOK_SRCIP: 5458102087Sluigi NEED1("missing source IP"); 5459102087Sluigi if (add_srcip(cmd, *av)) { 5460102087Sluigi ac--; av++; 5461102087Sluigi } 5462102087Sluigi break; 5463102087Sluigi 5464102087Sluigi case TOK_DSTIP: 5465102087Sluigi NEED1("missing destination IP"); 5466102087Sluigi if (add_dstip(cmd, *av)) { 5467102087Sluigi ac--; av++; 5468102087Sluigi } 5469102087Sluigi break; 5470102087Sluigi 5471145246Sbrooks case TOK_SRCIP6: 5472145246Sbrooks NEED1("missing source IP6"); 5473145246Sbrooks if (add_srcip6(cmd, *av)) { 5474145246Sbrooks ac--; av++; 5475145246Sbrooks } 5476145246Sbrooks break; 5477145246Sbrooks 5478145246Sbrooks case TOK_DSTIP6: 5479145246Sbrooks NEED1("missing destination IP6"); 5480145246Sbrooks if (add_dstip6(cmd, *av)) { 5481145246Sbrooks ac--; av++; 5482145246Sbrooks } 5483145246Sbrooks break; 5484145246Sbrooks 5485102087Sluigi case TOK_SRCPORT: 5486102087Sluigi NEED1("missing source port"); 5487140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5488102087Sluigi add_ports(cmd, *av, proto, O_IP_SRCPORT)) { 5489102087Sluigi ac--; av++; 5490102087Sluigi } else 5491102087Sluigi errx(EX_DATAERR, "invalid source port %s", *av); 5492102087Sluigi break; 5493102087Sluigi 5494102087Sluigi case TOK_DSTPORT: 5495102087Sluigi NEED1("missing destination port"); 5496140271Sbrooks if (_substrcmp(*av, "any") == 0 || 5497102087Sluigi add_ports(cmd, *av, proto, O_IP_DSTPORT)) { 5498102087Sluigi ac--; av++; 5499102087Sluigi } else 5500102087Sluigi errx(EX_DATAERR, "invalid destination port %s", 5501102087Sluigi *av); 5502102087Sluigi break; 5503102087Sluigi 5504102087Sluigi case TOK_MAC: 5505102087Sluigi if (add_mac(cmd, ac, av)) { 5506102087Sluigi ac -= 2; av += 2; 5507102087Sluigi } 5508102087Sluigi break; 5509102087Sluigi 5510102087Sluigi case TOK_MACTYPE: 5511102087Sluigi NEED1("missing mac type"); 5512102087Sluigi if (!add_mactype(cmd, ac, *av)) 5513116438Smaxim errx(EX_DATAERR, "invalid mac type %s", *av); 5514102087Sluigi ac--; av++; 5515102087Sluigi break; 5516102087Sluigi 5517112250Scjc case TOK_VERREVPATH: 5518112250Scjc fill_cmd(cmd, O_VERREVPATH, 0, 0); 5519112250Scjc break; 5520116919Sluigi 5521128575Sandre case TOK_VERSRCREACH: 5522128575Sandre fill_cmd(cmd, O_VERSRCREACH, 0, 0); 5523128575Sandre break; 5524128575Sandre 5525133387Sandre case TOK_ANTISPOOF: 5526133387Sandre fill_cmd(cmd, O_ANTISPOOF, 0, 0); 5527133387Sandre break; 5528133387Sandre 5529117241Sluigi case TOK_IPSEC: 5530117241Sluigi fill_cmd(cmd, O_IPSEC, 0, 0); 5531117241Sluigi break; 5532117241Sluigi 5533145246Sbrooks case TOK_IPV6: 5534145246Sbrooks fill_cmd(cmd, O_IP6, 0, 0); 5535145246Sbrooks break; 5536145246Sbrooks 5537146894Smlaier case TOK_IPV4: 5538146894Smlaier fill_cmd(cmd, O_IP4, 0, 0); 5539146894Smlaier break; 5540146894Smlaier 5541145246Sbrooks case TOK_EXT6HDR: 5542145246Sbrooks fill_ext6hdr( cmd, *av ); 5543145246Sbrooks ac--; av++; 5544145246Sbrooks break; 5545145246Sbrooks 5546145246Sbrooks case TOK_FLOWID: 5547145246Sbrooks if (proto != IPPROTO_IPV6 ) 5548145246Sbrooks errx( EX_USAGE, "flow-id filter is active " 5549145246Sbrooks "only for ipv6 protocol\n"); 5550145246Sbrooks fill_flow6( (ipfw_insn_u32 *) cmd, *av ); 5551145246Sbrooks ac--; av++; 5552145246Sbrooks break; 5553145246Sbrooks 5554117469Sluigi case TOK_COMMENT: 5555117469Sluigi fill_comment(cmd, ac, av); 5556117469Sluigi av += ac; 5557117469Sluigi ac = 0; 5558117469Sluigi break; 5559117469Sluigi 5560158879Soleg case TOK_TAGGED: 5561159636Soleg if (ac > 0 && strpbrk(*av, "-,")) { 5562158879Soleg if (!add_ports(cmd, *av, 0, O_TAGGED)) 5563159636Soleg errx(EX_DATAERR, "tagged: invalid tag" 5564159636Soleg " list: %s", *av); 5565158879Soleg } 5566159636Soleg else { 5567159636Soleg uint16_t tag; 5568159636Soleg 5569182823Srik GET_UINT_ARG(tag, 1, IPFW_DEFAULT_RULE - 1, 5570182823Srik TOK_TAGGED, rule_options); 5571159636Soleg fill_cmd(cmd, O_TAGGED, 0, tag); 5572159636Soleg } 5573158879Soleg ac--; av++; 5574158879Soleg break; 5575158879Soleg 5576178888Sjulian case TOK_FIB: 5577178888Sjulian NEED1("fib requires fib number"); 5578178888Sjulian fill_cmd(cmd, O_FIB, 0, strtoul(*av, NULL, 0)); 5579178888Sjulian ac--; av++; 5580178888Sjulian break; 5581178888Sjulian 558298943Sluigi default: 558398943Sluigi errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s); 558498943Sluigi } 558598943Sluigi if (F_LEN(cmd) > 0) { /* prepare to advance */ 558698943Sluigi prev = cmd; 558798943Sluigi cmd = next_cmd(cmd); 558898943Sluigi } 558998943Sluigi } 559098943Sluigi 559198943Sluigidone: 559298943Sluigi /* 559398943Sluigi * Now copy stuff into the rule. 559498943Sluigi * If we have a keep-state option, the first instruction 559598943Sluigi * must be a PROBE_STATE (which is generated here). 559698943Sluigi * If we have a LOG option, it was stored as the first command, 559798943Sluigi * and now must be moved to the top of the action part. 559898943Sluigi */ 559998943Sluigi dst = (ipfw_insn *)rule->cmd; 560098943Sluigi 560198943Sluigi /* 5602107289Sluigi * First thing to write into the command stream is the match probability. 5603107289Sluigi */ 5604107289Sluigi if (match_prob != 1) { /* 1 means always match */ 5605107289Sluigi dst->opcode = O_PROB; 5606107289Sluigi dst->len = 2; 5607107289Sluigi *((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff); 5608107289Sluigi dst += dst->len; 5609107289Sluigi } 5610107289Sluigi 5611107289Sluigi /* 561298943Sluigi * generate O_PROBE_STATE if necessary 561398943Sluigi */ 5614101116Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 561598943Sluigi fill_cmd(dst, O_PROBE_STATE, 0, 0); 561698943Sluigi dst = next_cmd(dst); 561798943Sluigi } 5618158879Soleg 5619158879Soleg /* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */ 562098943Sluigi for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) { 562198943Sluigi i = F_LEN(src); 562298943Sluigi 5623101116Sluigi switch (src->opcode) { 5624101116Sluigi case O_LOG: 5625101116Sluigi case O_KEEP_STATE: 5626101116Sluigi case O_LIMIT: 5627136071Sgreen case O_ALTQ: 5628158879Soleg case O_TAG: 5629101116Sluigi break; 5630101116Sluigi default: 5631117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 563298943Sluigi dst += i; 563398943Sluigi } 563498943Sluigi } 563598943Sluigi 563698943Sluigi /* 5637101116Sluigi * put back the have_state command as last opcode 5638101116Sluigi */ 5639101295Sluigi if (have_state && have_state->opcode != O_CHECK_STATE) { 5640101116Sluigi i = F_LEN(have_state); 5641117328Sluigi bcopy(have_state, dst, i * sizeof(uint32_t)); 5642101116Sluigi dst += i; 5643101116Sluigi } 5644101116Sluigi /* 564598943Sluigi * start action section 564698943Sluigi */ 564798943Sluigi rule->act_ofs = dst - rule->cmd; 564898943Sluigi 5649158879Soleg /* put back O_LOG, O_ALTQ, O_TAG if necessary */ 5650136071Sgreen if (have_log) { 5651136071Sgreen i = F_LEN(have_log); 5652136071Sgreen bcopy(have_log, dst, i * sizeof(uint32_t)); 565398943Sluigi dst += i; 565498943Sluigi } 5655136071Sgreen if (have_altq) { 5656136071Sgreen i = F_LEN(have_altq); 5657136071Sgreen bcopy(have_altq, dst, i * sizeof(uint32_t)); 5658136071Sgreen dst += i; 5659136071Sgreen } 5660158879Soleg if (have_tag) { 5661158879Soleg i = F_LEN(have_tag); 5662158879Soleg bcopy(have_tag, dst, i * sizeof(uint32_t)); 5663158879Soleg dst += i; 5664158879Soleg } 566598943Sluigi /* 566698943Sluigi * copy all other actions 566798943Sluigi */ 566898943Sluigi for (src = (ipfw_insn *)actbuf; src != action; src += i) { 566998943Sluigi i = F_LEN(src); 5670117328Sluigi bcopy(src, dst, i * sizeof(uint32_t)); 567198943Sluigi dst += i; 567298943Sluigi } 567398943Sluigi 5674117328Sluigi rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd); 5675117469Sluigi i = (char *)dst - (char *)rule; 5676119740Stmm if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1) 567798943Sluigi err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD"); 5678187764Sluigi if (!co.do_quiet) 5679117469Sluigi show_ipfw(rule, 0, 0); 568098943Sluigi} 568198943Sluigi 5682187767Sluigi/* 5683187767Sluigi * clear the counters or the log counters. 5684187767Sluigi */ 5685187767Sluigivoid 5686187767Sluigiipfw_zero(int ac, char *av[], int optname /* 0 = IP_FW_ZERO, 1 = IP_FW_RESETLOG */) 568798943Sluigi{ 5688170923Smaxim uint32_t arg, saved_arg; 568998943Sluigi int failed = EX_OK; 5690170923Smaxim char const *errstr; 5691187767Sluigi char const *name = optname ? "RESETLOG" : "ZERO"; 569298943Sluigi 5693187767Sluigi optname = optname ? IP_FW_RESETLOG : IP_FW_ZERO; 5694187767Sluigi 569598943Sluigi av++; ac--; 569698943Sluigi 569798943Sluigi if (!ac) { 569898943Sluigi /* clear all entries */ 5699117328Sluigi if (do_cmd(optname, NULL, 0) < 0) 5700117328Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name); 5701187764Sluigi if (!co.do_quiet) 5702117328Sluigi printf("%s.\n", optname == IP_FW_ZERO ? 5703117328Sluigi "Accounting cleared":"Logging counts reset"); 570498943Sluigi 570598943Sluigi return; 570698943Sluigi } 570798943Sluigi 570898943Sluigi while (ac) { 570998943Sluigi /* Rule number */ 571098943Sluigi if (isdigit(**av)) { 5711170923Smaxim arg = strtonum(*av, 0, 0xffff, &errstr); 5712170923Smaxim if (errstr) 5713170923Smaxim errx(EX_DATAERR, 5714170923Smaxim "invalid rule number %s\n", *av); 5715170923Smaxim saved_arg = arg; 5716187764Sluigi if (co.use_set) 5717187764Sluigi arg |= (1 << 24) | ((co.use_set - 1) << 16); 571898943Sluigi av++; 571998943Sluigi ac--; 5720170923Smaxim if (do_cmd(optname, &arg, sizeof(arg))) { 5721117328Sluigi warn("rule %u: setsockopt(IP_FW_%s)", 5722170923Smaxim saved_arg, name); 572398943Sluigi failed = EX_UNAVAILABLE; 5724187764Sluigi } else if (!co.do_quiet) 5725170923Smaxim printf("Entry %d %s.\n", saved_arg, 5726117328Sluigi optname == IP_FW_ZERO ? 5727117328Sluigi "cleared" : "logging count reset"); 572898943Sluigi } else { 572998943Sluigi errx(EX_USAGE, "invalid rule number ``%s''", *av); 573098943Sluigi } 573198943Sluigi } 573298943Sluigi if (failed != EX_OK) 573398943Sluigi exit(failed); 573498943Sluigi} 573598943Sluigi 5736187767Sluigivoid 5737187767Sluigiipfw_flush(int force) 573898943Sluigi{ 5739187764Sluigi int cmd = co.do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH; 574098943Sluigi 5741187764Sluigi if (!force && !co.do_quiet) { /* need to ask user */ 574298943Sluigi int c; 574398943Sluigi 574498943Sluigi printf("Are you sure? [yn] "); 574598943Sluigi fflush(stdout); 574698943Sluigi do { 574798943Sluigi c = toupper(getc(stdin)); 574898943Sluigi while (c != '\n' && getc(stdin) != '\n') 574998943Sluigi if (feof(stdin)) 575098943Sluigi return; /* and do not flush */ 575198943Sluigi } while (c != 'Y' && c != 'N'); 575298943Sluigi printf("\n"); 575398943Sluigi if (c == 'N') /* user said no */ 575498943Sluigi return; 575598943Sluigi } 5756170923Smaxim /* `ipfw set N flush` - is the same that `ipfw delete set N` */ 5757187764Sluigi if (co.use_set) { 5758187764Sluigi uint32_t arg = ((co.use_set - 1) & 0xffff) | (1 << 24); 5759170923Smaxim if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0) 5760170923Smaxim err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)"); 5761170923Smaxim } else if (do_cmd(cmd, NULL, 0) < 0) 576298943Sluigi err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)", 5763187764Sluigi co.do_pipe ? "DUMMYNET" : "FW"); 5764187764Sluigi if (!co.do_quiet) 5765187764Sluigi printf("Flushed all %s.\n", co.do_pipe ? "pipes" : "rules"); 576698943Sluigi} 576798943Sluigi 5768117544Sluigi 5769183407Srikstatic void table_list(ipfw_table_entry ent, int need_header); 5770183228Srik 5771117544Sluigi/* 5772130281Sru * This one handles all table-related commands 5773130281Sru * ipfw table N add addr[/masklen] [value] 5774130281Sru * ipfw table N delete addr[/masklen] 5775183407Srik * ipfw table {N | all} flush 5776183407Srik * ipfw table {N | all} list 5777130281Sru */ 5778187767Sluigivoid 5779187767Sluigiipfw_table_handler(int ac, char *av[]) 5780130281Sru{ 5781130281Sru ipfw_table_entry ent; 5782130281Sru int do_add; 5783183407Srik int is_all; 5784183241Srik size_t len; 5785130281Sru char *p; 5786183407Srik uint32_t a; 5787183241Srik uint32_t tables_max; 5788130281Sru 5789183263Skeramida len = sizeof(tables_max); 5790183241Srik if (sysctlbyname("net.inet.ip.fw.tables_max", &tables_max, &len, 5791183241Srik NULL, 0) == -1) { 5792183241Srik#ifdef IPFW_TABLES_MAX 5793183241Srik warn("Warn: Failed to get the max tables number via sysctl. " 5794183241Srik "Using the compiled in defaults. \nThe reason was"); 5795183241Srik tables_max = IPFW_TABLES_MAX; 5796183241Srik#else 5797183241Srik errx(1, "Failed sysctlbyname(\"net.inet.ip.fw.tables_max\")"); 5798183241Srik#endif 5799183241Srik } 5800183241Srik 5801130281Sru ac--; av++; 5802130281Sru if (ac && isdigit(**av)) { 5803130281Sru ent.tbl = atoi(*av); 5804183407Srik is_all = 0; 5805130281Sru ac--; av++; 5806183407Srik } else if (ac && _substrcmp(*av, "all") == 0) { 5807183407Srik ent.tbl = 0; 5808183407Srik is_all = 1; 5809183407Srik ac--; av++; 5810130281Sru } else 5811183407Srik errx(EX_USAGE, "table number or 'all' keyword required"); 5812183241Srik if (ent.tbl >= tables_max) 5813183241Srik errx(EX_USAGE, "The table number exceeds the maximum allowed " 5814183241Srik "value (%d)", tables_max - 1); 5815130281Sru NEED1("table needs command"); 5816183407Srik if (is_all && _substrcmp(*av, "list") != 0 5817183407Srik && _substrcmp(*av, "flush") != 0) 5818183407Srik errx(EX_USAGE, "table number required"); 5819183407Srik 5820140271Sbrooks if (_substrcmp(*av, "add") == 0 || 5821140271Sbrooks _substrcmp(*av, "delete") == 0) { 5822130281Sru do_add = **av == 'a'; 5823130281Sru ac--; av++; 5824130281Sru if (!ac) 5825130281Sru errx(EX_USAGE, "IP address required"); 5826130281Sru p = strchr(*av, '/'); 5827130281Sru if (p) { 5828130281Sru *p++ = '\0'; 5829130281Sru ent.masklen = atoi(p); 5830130281Sru if (ent.masklen > 32) 5831130281Sru errx(EX_DATAERR, "bad width ``%s''", p); 5832130281Sru } else 5833130281Sru ent.masklen = 32; 5834130281Sru if (lookup_host(*av, (struct in_addr *)&ent.addr) != 0) 5835130298Sru errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5836130281Sru ac--; av++; 5837161424Sjulian if (do_add && ac) { 5838161424Sjulian unsigned int tval; 5839161424Sjulian /* isdigit is a bit of a hack here.. */ 5840161424Sjulian if (strchr(*av, (int)'.') == NULL && isdigit(**av)) { 5841161424Sjulian ent.value = strtoul(*av, NULL, 0); 5842161424Sjulian } else { 5843161424Sjulian if (lookup_host(*av, (struct in_addr *)&tval) == 0) { 5844161424Sjulian /* The value must be stored in host order * 5845161424Sjulian * so that the values < 65k can be distinguished */ 5846161424Sjulian ent.value = ntohl(tval); 5847161424Sjulian } else { 5848161424Sjulian errx(EX_NOHOST, "hostname ``%s'' unknown", *av); 5849161424Sjulian } 5850161424Sjulian } 5851161424Sjulian } else 5852130281Sru ent.value = 0; 5853130281Sru if (do_cmd(do_add ? IP_FW_TABLE_ADD : IP_FW_TABLE_DEL, 5854157335Sjulian &ent, sizeof(ent)) < 0) { 5855155639Sjulian /* If running silent, don't bomb out on these errors. */ 5856187764Sluigi if (!(co.do_quiet && (errno == (do_add ? EEXIST : ESRCH)))) 5857155639Sjulian err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)", 5858155639Sjulian do_add ? "ADD" : "DEL"); 5859155639Sjulian /* In silent mode, react to a failed add by deleting */ 5860157332Sjulian if (do_add) { 5861155639Sjulian do_cmd(IP_FW_TABLE_DEL, &ent, sizeof(ent)); 5862155639Sjulian if (do_cmd(IP_FW_TABLE_ADD, 5863155639Sjulian &ent, sizeof(ent)) < 0) 5864155639Sjulian err(EX_OSERR, 5865155639Sjulian "setsockopt(IP_FW_TABLE_ADD)"); 5866157332Sjulian } 5867157335Sjulian } 5868140271Sbrooks } else if (_substrcmp(*av, "flush") == 0) { 5869183407Srik a = is_all ? tables_max : (ent.tbl + 1); 5870183407Srik do { 5871183407Srik if (do_cmd(IP_FW_TABLE_FLUSH, &ent.tbl, 5872183407Srik sizeof(ent.tbl)) < 0) 5873183407Srik err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)"); 5874183407Srik } while (++ent.tbl < a); 5875140271Sbrooks } else if (_substrcmp(*av, "list") == 0) { 5876183407Srik a = is_all ? tables_max : (ent.tbl + 1); 5877183407Srik do { 5878183415Srik table_list(ent, is_all); 5879183407Srik } while (++ent.tbl < a); 5880183228Srik } else 5881183228Srik errx(EX_USAGE, "invalid table command %s", *av); 5882183228Srik} 5883183205Srik 5884183228Srikstatic void 5885183407Sriktable_list(ipfw_table_entry ent, int need_header) 5886183228Srik{ 5887183228Srik ipfw_table *tbl; 5888183228Srik socklen_t l; 5889183228Srik uint32_t a; 5890183205Srik 5891183228Srik a = ent.tbl; 5892183228Srik l = sizeof(a); 5893183228Srik if (do_cmd(IP_FW_TABLE_GETSIZE, &a, (uintptr_t)&l) < 0) 5894183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_GETSIZE)"); 5895183228Srik 5896183228Srik /* If a is zero we have nothing to do, the table is empty. */ 5897183228Srik if (a == 0) 5898183228Srik return; 5899183228Srik 5900183228Srik l = sizeof(*tbl) + a * sizeof(ipfw_table_entry); 5901187716Sluigi tbl = safe_calloc(1, l); 5902183228Srik tbl->tbl = ent.tbl; 5903183228Srik if (do_cmd(IP_FW_TABLE_LIST, tbl, (uintptr_t)&l) < 0) 5904183228Srik err(EX_OSERR, "getsockopt(IP_FW_TABLE_LIST)"); 5905183407Srik if (tbl->cnt && need_header) 5906183407Srik printf("---table(%d)---\n", tbl->tbl); 5907183228Srik for (a = 0; a < tbl->cnt; a++) { 5908183228Srik unsigned int tval; 5909183228Srik tval = tbl->ent[a].value; 5910187764Sluigi if (co.do_value_as_ip) { 5911183228Srik char tbuf[128]; 5912183228Srik strncpy(tbuf, inet_ntoa(*(struct in_addr *) 5913161456Sjulian &tbl->ent[a].addr), 127); 5914183228Srik /* inet_ntoa expects network order */ 5915183228Srik tval = htonl(tval); 5916183228Srik printf("%s/%u %s\n", tbuf, tbl->ent[a].masklen, 5917183228Srik inet_ntoa(*(struct in_addr *)&tval)); 5918183228Srik } else { 5919183228Srik printf("%s/%u %u\n", 5920183228Srik inet_ntoa(*(struct in_addr *)&tbl->ent[a].addr), 5921183228Srik tbl->ent[a].masklen, tval); 5922130281Sru } 5923183228Srik } 5924183228Srik free(tbl); 5925130281Sru} 5926130281Sru 5927187767Sluigivoid 5928187767Sluigiipfw_show_nat(int ac, char **av) 5929183206Srik{ 5930165648Spiso struct cfg_nat *n; 5931165648Spiso struct cfg_redir *e; 5932165648Spiso int cmd, i, nbytes, do_cfg, do_rule, frule, lrule, nalloc, size; 5933176393Spiso int nat_cnt, redir_cnt, r; 5934165648Spiso uint8_t *data, *p; 5935183208Srik char *endptr; 5936165648Spiso 5937165648Spiso do_rule = 0; 5938165648Spiso nalloc = 1024; 5939165648Spiso size = 0; 5940165648Spiso data = NULL; 5941176445Spiso frule = 0; 5942182823Srik lrule = IPFW_DEFAULT_RULE; /* max ipfw rule number */ 5943165648Spiso ac--; av++; 5944165648Spiso 5945187764Sluigi if (co.test_only) 5946183889Smaxim return; 5947183889Smaxim 5948165648Spiso /* Parse parameters. */ 5949165648Spiso for (cmd = IP_FW_NAT_GET_LOG, do_cfg = 0; ac != 0; ac--, av++) { 5950165648Spiso if (!strncmp(av[0], "config", strlen(av[0]))) { 5951165648Spiso cmd = IP_FW_NAT_GET_CONFIG, do_cfg = 1; 5952165648Spiso continue; 5953165648Spiso } 5954165648Spiso /* Convert command line rule #. */ 5955165648Spiso frule = lrule = strtoul(av[0], &endptr, 10); 5956165648Spiso if (*endptr == '-') 5957165648Spiso lrule = strtoul(endptr+1, &endptr, 10); 5958165648Spiso if (lrule == 0) 5959165648Spiso err(EX_USAGE, "invalid rule number: %s", av[0]); 5960165648Spiso do_rule = 1; 5961165648Spiso } 5962165648Spiso 5963165648Spiso nbytes = nalloc; 5964165648Spiso while (nbytes >= nalloc) { 5965165648Spiso nalloc = nalloc * 2; 5966165648Spiso nbytes = nalloc; 5967187716Sluigi data = safe_realloc(data, nbytes); 5968165648Spiso if (do_cmd(cmd, data, (uintptr_t)&nbytes) < 0) 5969165648Spiso err(EX_OSERR, "getsockopt(IP_FW_GET_%s)", 5970165648Spiso (cmd == IP_FW_NAT_GET_LOG) ? "LOG" : "CONFIG"); 5971165648Spiso } 5972165648Spiso if (nbytes == 0) 5973176445Spiso exit(0); 5974165648Spiso if (do_cfg) { 5975165648Spiso nat_cnt = *((int *)data); 5976165648Spiso for (i = sizeof(nat_cnt); nat_cnt; nat_cnt--) { 5977165648Spiso n = (struct cfg_nat *)&data[i]; 5978176445Spiso if (frule <= n->id && lrule >= n->id) 5979176445Spiso print_nat_config(&data[i]); 5980165648Spiso i += sizeof(struct cfg_nat); 5981176393Spiso for (redir_cnt = 0; redir_cnt < n->redir_cnt; redir_cnt++) { 5982176393Spiso e = (struct cfg_redir *)&data[i]; 5983165648Spiso i += sizeof(struct cfg_redir) + e->spool_cnt * 5984165648Spiso sizeof(struct cfg_spool); 5985176393Spiso } 5986165648Spiso } 5987165648Spiso } else { 5988165648Spiso for (i = 0; 1; i += LIBALIAS_BUF_SIZE + sizeof(int)) { 5989165648Spiso p = &data[i]; 5990165648Spiso if (p == data + nbytes) 5991165648Spiso break; 5992165648Spiso bcopy(p, &r, sizeof(int)); 5993165648Spiso if (do_rule) { 5994165648Spiso if (!(frule <= r && lrule >= r)) 5995165648Spiso continue; 5996165648Spiso } 5997165648Spiso printf("nat %u: %s\n", r, p+sizeof(int)); 5998165648Spiso } 5999165648Spiso } 6000165648Spiso} 6001