xref: /freebsd/sbin/ipfw/ipfw2.c (revision f8bee51a69a92e9926ba98864e70e4a52a4c1d4b)
19758b77fSLuigi Rizzo /*
2571f8c1bSLuigi Rizzo  * Copyright (c) 2002-2003 Luigi Rizzo
39758b77fSLuigi Rizzo  * Copyright (c) 1996 Alex Nash, Paul Traina, Poul-Henning Kamp
49758b77fSLuigi Rizzo  * Copyright (c) 1994 Ugen J.S.Antsilevich
59758b77fSLuigi Rizzo  *
69758b77fSLuigi Rizzo  * Idea and grammar partially left from:
79758b77fSLuigi Rizzo  * Copyright (c) 1993 Daniel Boulet
89758b77fSLuigi Rizzo  *
99758b77fSLuigi Rizzo  * Redistribution and use in source forms, with and without modification,
109758b77fSLuigi Rizzo  * are permitted provided that this entire comment appears intact.
119758b77fSLuigi Rizzo  *
129758b77fSLuigi Rizzo  * Redistribution in binary form may occur without any restrictions.
139758b77fSLuigi Rizzo  * Obviously, it would be nice if you gave credit where credit is due
149758b77fSLuigi Rizzo  * but requiring it would be too onerous.
159758b77fSLuigi Rizzo  *
169758b77fSLuigi Rizzo  * This software is provided ``AS IS'' without any warranties of any kind.
179758b77fSLuigi Rizzo  *
189758b77fSLuigi Rizzo  * NEW command line interface for IP firewall facility
199758b77fSLuigi Rizzo  *
209758b77fSLuigi Rizzo  * $FreeBSD$
219758b77fSLuigi Rizzo  */
229758b77fSLuigi Rizzo 
23e5dbf736SLuigi Rizzo #include <sys/types.h>
245f301949SBen Laurie #include <sys/param.h>
259758b77fSLuigi Rizzo #include <sys/socket.h>
269758b77fSLuigi Rizzo #include <sys/sockio.h>
279758b77fSLuigi Rizzo #include <sys/sysctl.h>
283c0c8717SLuigi Rizzo 
293c0c8717SLuigi Rizzo #include "ipfw2.h"
309758b77fSLuigi Rizzo 
319758b77fSLuigi Rizzo #include <ctype.h>
329758b77fSLuigi Rizzo #include <err.h>
339758b77fSLuigi Rizzo #include <errno.h>
349758b77fSLuigi Rizzo #include <grp.h>
359758b77fSLuigi Rizzo #include <netdb.h>
369758b77fSLuigi Rizzo #include <pwd.h>
379758b77fSLuigi Rizzo #include <stdio.h>
389758b77fSLuigi Rizzo #include <stdlib.h>
399758b77fSLuigi Rizzo #include <string.h>
409758b77fSLuigi Rizzo #include <sysexits.h>
4123c608c8SLuigi Rizzo #include <time.h>	/* ctime */
42e5dbf736SLuigi Rizzo #include <timeconv.h>	/* _long_to_time */
43974dfe30SBrian Feldman #include <unistd.h>
44974dfe30SBrian Feldman #include <fcntl.h>
45*f8bee51aSAlexander V. Chernikov #include <stddef.h>	/* offsetof */
469758b77fSLuigi Rizzo 
47bd1d3456SMaxim Konovalov #include <net/ethernet.h>
4823c608c8SLuigi Rizzo #include <net/if.h>		/* only IFNAMSIZ */
499758b77fSLuigi Rizzo #include <netinet/in.h>
5023c608c8SLuigi Rizzo #include <netinet/in_systm.h>	/* only n_short, n_long */
519758b77fSLuigi Rizzo #include <netinet/ip.h>
529758b77fSLuigi Rizzo #include <netinet/ip_icmp.h>
539758b77fSLuigi Rizzo #include <netinet/ip_fw.h>
549758b77fSLuigi Rizzo #include <netinet/tcp.h>
559758b77fSLuigi Rizzo #include <arpa/inet.h>
569758b77fSLuigi Rizzo 
573c0c8717SLuigi Rizzo struct cmdline_opts co;	/* global options */
58db7c5224SLuigi Rizzo 
593c0c8717SLuigi Rizzo int resvd_set_number = RESVD_SET;
609758b77fSLuigi Rizzo 
61*f8bee51aSAlexander V. Chernikov int ipfw_socket = -1;
62*f8bee51aSAlexander V. Chernikov 
63*f8bee51aSAlexander V. Chernikov #ifndef s6_addr32
64*f8bee51aSAlexander V. Chernikov #define s6_addr32 __u6_addr.__u6_addr32
65*f8bee51aSAlexander V. Chernikov #endif
66*f8bee51aSAlexander V. Chernikov 
67254c4725SOleg Bulyzhin #define GET_UINT_ARG(arg, min, max, tok, s_x) do {			\
68cc4d3c30SLuigi Rizzo 	if (!av[0])							\
69254c4725SOleg Bulyzhin 		errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \
70254c4725SOleg Bulyzhin 	if (_substrcmp(*av, "tablearg") == 0) {				\
71254c4725SOleg Bulyzhin 		arg = IP_FW_TABLEARG;					\
72254c4725SOleg Bulyzhin 		break;							\
736a7d5cb6SOleg Bulyzhin 	}								\
74254c4725SOleg Bulyzhin 									\
75254c4725SOleg Bulyzhin 	{								\
76cc4d3c30SLuigi Rizzo 	long _xval;							\
77254c4725SOleg Bulyzhin 	char *end;							\
78254c4725SOleg Bulyzhin 									\
79cc4d3c30SLuigi Rizzo 	_xval = strtol(*av, &end, 10);					\
80254c4725SOleg Bulyzhin 									\
81cc4d3c30SLuigi Rizzo 	if (!isdigit(**av) || *end != '\0' || (_xval == 0 && errno == EINVAL)) \
82254c4725SOleg Bulyzhin 		errx(EX_DATAERR, "%s: invalid argument: %s",		\
83254c4725SOleg Bulyzhin 		    match_value(s_x, tok), *av);			\
84254c4725SOleg Bulyzhin 									\
85cc4d3c30SLuigi Rizzo 	if (errno == ERANGE || _xval < min || _xval > max)		\
86254c4725SOleg Bulyzhin 		errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \
87254c4725SOleg Bulyzhin 		    match_value(s_x, tok), min, max, *av);		\
88254c4725SOleg Bulyzhin 									\
89cc4d3c30SLuigi Rizzo 	if (_xval == IP_FW_TABLEARG)					\
90254c4725SOleg Bulyzhin 		errx(EX_DATAERR, "%s: illegal argument value: %s",	\
91254c4725SOleg Bulyzhin 		    match_value(s_x, tok), *av);			\
92cc4d3c30SLuigi Rizzo 	arg = _xval;							\
93254c4725SOleg Bulyzhin 	}								\
94254c4725SOleg Bulyzhin } while (0)
95254c4725SOleg Bulyzhin 
96be39e0b2SLuigi Rizzo static void
97be39e0b2SLuigi Rizzo PRINT_UINT_ARG(const char *str, uint32_t arg)
98be39e0b2SLuigi Rizzo {
99be39e0b2SLuigi Rizzo 	if (str != NULL)
100be39e0b2SLuigi Rizzo 		printf("%s",str);
101be39e0b2SLuigi Rizzo 	if (arg == IP_FW_TABLEARG)
102be39e0b2SLuigi Rizzo 		printf("tablearg");
103be39e0b2SLuigi Rizzo 	else
104be39e0b2SLuigi Rizzo 		printf("%u", arg);
105be39e0b2SLuigi Rizzo }
1066a7d5cb6SOleg Bulyzhin 
1079758b77fSLuigi Rizzo static struct _s_x f_tcpflags[] = {
1089758b77fSLuigi Rizzo 	{ "syn", TH_SYN },
1099758b77fSLuigi Rizzo 	{ "fin", TH_FIN },
1109758b77fSLuigi Rizzo 	{ "ack", TH_ACK },
1119758b77fSLuigi Rizzo 	{ "psh", TH_PUSH },
1129758b77fSLuigi Rizzo 	{ "rst", TH_RST },
1139758b77fSLuigi Rizzo 	{ "urg", TH_URG },
1149758b77fSLuigi Rizzo 	{ "tcp flag", 0 },
1159758b77fSLuigi Rizzo 	{ NULL,	0 }
1169758b77fSLuigi Rizzo };
1179758b77fSLuigi Rizzo 
1189758b77fSLuigi Rizzo static struct _s_x f_tcpopts[] = {
1199758b77fSLuigi Rizzo 	{ "mss",	IP_FW_TCPOPT_MSS },
1209758b77fSLuigi Rizzo 	{ "maxseg",	IP_FW_TCPOPT_MSS },
1219758b77fSLuigi Rizzo 	{ "window",	IP_FW_TCPOPT_WINDOW },
1229758b77fSLuigi Rizzo 	{ "sack",	IP_FW_TCPOPT_SACK },
1239758b77fSLuigi Rizzo 	{ "ts",		IP_FW_TCPOPT_TS },
1249758b77fSLuigi Rizzo 	{ "timestamp",	IP_FW_TCPOPT_TS },
1259758b77fSLuigi Rizzo 	{ "cc",		IP_FW_TCPOPT_CC },
1269758b77fSLuigi Rizzo 	{ "tcp option",	0 },
1279758b77fSLuigi Rizzo 	{ NULL,	0 }
1289758b77fSLuigi Rizzo };
1299758b77fSLuigi Rizzo 
1309758b77fSLuigi Rizzo /*
1319758b77fSLuigi Rizzo  * IP options span the range 0 to 255 so we need to remap them
1329758b77fSLuigi Rizzo  * (though in fact only the low 5 bits are significant).
1339758b77fSLuigi Rizzo  */
1349758b77fSLuigi Rizzo static struct _s_x f_ipopts[] = {
1359758b77fSLuigi Rizzo 	{ "ssrr",	IP_FW_IPOPT_SSRR},
1369758b77fSLuigi Rizzo 	{ "lsrr",	IP_FW_IPOPT_LSRR},
1379758b77fSLuigi Rizzo 	{ "rr",		IP_FW_IPOPT_RR},
1389758b77fSLuigi Rizzo 	{ "ts",		IP_FW_IPOPT_TS},
1399758b77fSLuigi Rizzo 	{ "ip option",	0 },
1409758b77fSLuigi Rizzo 	{ NULL,	0 }
1419758b77fSLuigi Rizzo };
1429758b77fSLuigi Rizzo 
1439758b77fSLuigi Rizzo static struct _s_x f_iptos[] = {
1449758b77fSLuigi Rizzo 	{ "lowdelay",	IPTOS_LOWDELAY},
1459758b77fSLuigi Rizzo 	{ "throughput",	IPTOS_THROUGHPUT},
1469758b77fSLuigi Rizzo 	{ "reliability", IPTOS_RELIABILITY},
1479758b77fSLuigi Rizzo 	{ "mincost",	IPTOS_MINCOST},
14806d703efSRui Paulo 	{ "congestion",	IPTOS_ECN_CE},
14906d703efSRui Paulo 	{ "ecntransport", IPTOS_ECN_ECT0},
1509758b77fSLuigi Rizzo 	{ "ip tos option", 0},
1519758b77fSLuigi Rizzo 	{ NULL,	0 }
1529758b77fSLuigi Rizzo };
1539758b77fSLuigi Rizzo 
1549758b77fSLuigi Rizzo static struct _s_x limit_masks[] = {
1559758b77fSLuigi Rizzo 	{"all",		DYN_SRC_ADDR|DYN_SRC_PORT|DYN_DST_ADDR|DYN_DST_PORT},
1569758b77fSLuigi Rizzo 	{"src-addr",	DYN_SRC_ADDR},
1579758b77fSLuigi Rizzo 	{"src-port",	DYN_SRC_PORT},
1589758b77fSLuigi Rizzo 	{"dst-addr",	DYN_DST_ADDR},
1599758b77fSLuigi Rizzo 	{"dst-port",	DYN_DST_PORT},
1609758b77fSLuigi Rizzo 	{NULL,		0}
1619758b77fSLuigi Rizzo };
1629758b77fSLuigi Rizzo 
1639758b77fSLuigi Rizzo /*
1649758b77fSLuigi Rizzo  * we use IPPROTO_ETHERTYPE as a fake protocol id to call the print routines
1659758b77fSLuigi Rizzo  * This is only used in this code.
1669758b77fSLuigi Rizzo  */
1679758b77fSLuigi Rizzo #define IPPROTO_ETHERTYPE	0x1000
1689758b77fSLuigi Rizzo static struct _s_x ether_types[] = {
1699758b77fSLuigi Rizzo     /*
1709758b77fSLuigi Rizzo      * Note, we cannot use "-:&/" in the names because they are field
1719758b77fSLuigi Rizzo      * separators in the type specifications. Also, we use s = NULL as
1729758b77fSLuigi Rizzo      * end-delimiter, because a type of 0 can be legal.
1739758b77fSLuigi Rizzo      */
1749758b77fSLuigi Rizzo 	{ "ip",		0x0800 },
1759758b77fSLuigi Rizzo 	{ "ipv4",	0x0800 },
1769758b77fSLuigi Rizzo 	{ "ipv6",	0x86dd },
1779758b77fSLuigi Rizzo 	{ "arp",	0x0806 },
1789758b77fSLuigi Rizzo 	{ "rarp",	0x8035 },
1799758b77fSLuigi Rizzo 	{ "vlan",	0x8100 },
1809758b77fSLuigi Rizzo 	{ "loop",	0x9000 },
1819758b77fSLuigi Rizzo 	{ "trail",	0x1000 },
1829758b77fSLuigi Rizzo 	{ "at",		0x809b },
1839758b77fSLuigi Rizzo 	{ "atalk",	0x809b },
1849758b77fSLuigi Rizzo 	{ "aarp",	0x80f3 },
1859758b77fSLuigi Rizzo 	{ "pppoe_disc",	0x8863 },
1869758b77fSLuigi Rizzo 	{ "pppoe_sess",	0x8864 },
1879758b77fSLuigi Rizzo 	{ "ipx_8022",	0x00E0 },
1889758b77fSLuigi Rizzo 	{ "ipx_8023",	0x0000 },
1899758b77fSLuigi Rizzo 	{ "ipx_ii",	0x8137 },
1909758b77fSLuigi Rizzo 	{ "ipx_snap",	0x8137 },
1919758b77fSLuigi Rizzo 	{ "ipx",	0x8137 },
1929758b77fSLuigi Rizzo 	{ "ns",		0x0600 },
1939758b77fSLuigi Rizzo 	{ NULL,		0 }
1949758b77fSLuigi Rizzo };
1959758b77fSLuigi Rizzo 
1969758b77fSLuigi Rizzo 
1974e9c8ae7SLuigi Rizzo static struct _s_x rule_actions[] = {
1989758b77fSLuigi Rizzo 	{ "accept",		TOK_ACCEPT },
1999758b77fSLuigi Rizzo 	{ "pass",		TOK_ACCEPT },
2009758b77fSLuigi Rizzo 	{ "allow",		TOK_ACCEPT },
2019758b77fSLuigi Rizzo 	{ "permit",		TOK_ACCEPT },
2029758b77fSLuigi Rizzo 	{ "count",		TOK_COUNT },
2039758b77fSLuigi Rizzo 	{ "pipe",		TOK_PIPE },
2049758b77fSLuigi Rizzo 	{ "queue",		TOK_QUEUE },
2059758b77fSLuigi Rizzo 	{ "divert",		TOK_DIVERT },
2069758b77fSLuigi Rizzo 	{ "tee",		TOK_TEE },
207670742a1SGleb Smirnoff 	{ "netgraph",		TOK_NETGRAPH },
208670742a1SGleb Smirnoff 	{ "ngtee",		TOK_NGTEE },
2099758b77fSLuigi Rizzo 	{ "fwd",		TOK_FORWARD },
2109758b77fSLuigi Rizzo 	{ "forward",		TOK_FORWARD },
2119758b77fSLuigi Rizzo 	{ "skipto",		TOK_SKIPTO },
2129758b77fSLuigi Rizzo 	{ "deny",		TOK_DENY },
2139758b77fSLuigi Rizzo 	{ "drop",		TOK_DENY },
2149758b77fSLuigi Rizzo 	{ "reject",		TOK_REJECT },
2159066356bSBjoern A. Zeeb 	{ "reset6",		TOK_RESET6 },
2169758b77fSLuigi Rizzo 	{ "reset",		TOK_RESET },
2179066356bSBjoern A. Zeeb 	{ "unreach6",		TOK_UNREACH6 },
2185e43aef8SLuigi Rizzo 	{ "unreach",		TOK_UNREACH },
2199758b77fSLuigi Rizzo 	{ "check-state",	TOK_CHECKSTATE },
22062ff38aeSLuigi Rizzo 	{ "//",			TOK_COMMENT },
221ff2f6fe8SPaolo Pisati 	{ "nat",		TOK_NAT },
222eb2e4119SPaolo Pisati 	{ "reass",		TOK_REASS },
2238b07e49aSJulian Elischer 	{ "setfib",		TOK_SETFIB },
2249527ec6eSAndrey V. Elsukov 	{ "call",		TOK_CALL },
2259527ec6eSAndrey V. Elsukov 	{ "return",		TOK_RETURN },
226571f8c1bSLuigi Rizzo 	{ NULL, 0 }	/* terminator */
2279758b77fSLuigi Rizzo };
2289758b77fSLuigi Rizzo 
2294e9c8ae7SLuigi Rizzo static struct _s_x rule_action_params[] = {
230974dfe30SBrian Feldman 	{ "altq",		TOK_ALTQ },
231974dfe30SBrian Feldman 	{ "log",		TOK_LOG },
2326a7d5cb6SOleg Bulyzhin 	{ "tag",		TOK_TAG },
2336a7d5cb6SOleg Bulyzhin 	{ "untag",		TOK_UNTAG },
234974dfe30SBrian Feldman 	{ NULL, 0 }	/* terminator */
235974dfe30SBrian Feldman };
236974dfe30SBrian Feldman 
237472099c4SLuigi Rizzo /*
238472099c4SLuigi Rizzo  * The 'lookup' instruction accepts one of the following arguments.
239472099c4SLuigi Rizzo  * -1 is a terminator for the list.
240472099c4SLuigi Rizzo  * Arguments are passed as v[1] in O_DST_LOOKUP options.
241472099c4SLuigi Rizzo  */
242472099c4SLuigi Rizzo static int lookup_key[] = {
243472099c4SLuigi Rizzo 	TOK_DSTIP, TOK_SRCIP, TOK_DSTPORT, TOK_SRCPORT,
24472662a75SLuigi Rizzo 	TOK_UID, TOK_JAIL, TOK_DSCP, -1 };
245472099c4SLuigi Rizzo 
2464e9c8ae7SLuigi Rizzo static struct _s_x rule_options[] = {
2476a7d5cb6SOleg Bulyzhin 	{ "tagged",		TOK_TAGGED },
2489758b77fSLuigi Rizzo 	{ "uid",		TOK_UID },
2499758b77fSLuigi Rizzo 	{ "gid",		TOK_GID },
25031c88a30SChristian S.J. Peron 	{ "jail",		TOK_JAIL },
2519758b77fSLuigi Rizzo 	{ "in",			TOK_IN },
2529758b77fSLuigi Rizzo 	{ "limit",		TOK_LIMIT },
2539758b77fSLuigi Rizzo 	{ "keep-state",		TOK_KEEPSTATE },
2549758b77fSLuigi Rizzo 	{ "bridged",		TOK_LAYER2 },
2559758b77fSLuigi Rizzo 	{ "layer2",		TOK_LAYER2 },
2569758b77fSLuigi Rizzo 	{ "out",		TOK_OUT },
2576daf7ebdSBrian Feldman 	{ "diverted",		TOK_DIVERTED },
2586daf7ebdSBrian Feldman 	{ "diverted-loopback",	TOK_DIVERTEDLOOPBACK },
2596daf7ebdSBrian Feldman 	{ "diverted-output",	TOK_DIVERTEDOUTPUT },
2609758b77fSLuigi Rizzo 	{ "xmit",		TOK_XMIT },
2619758b77fSLuigi Rizzo 	{ "recv",		TOK_RECV },
2629758b77fSLuigi Rizzo 	{ "via",		TOK_VIA },
2639758b77fSLuigi Rizzo 	{ "fragment",		TOK_FRAG },
2649758b77fSLuigi Rizzo 	{ "frag",		TOK_FRAG },
2658b07e49aSJulian Elischer 	{ "fib",		TOK_FIB },
2669758b77fSLuigi Rizzo 	{ "ipoptions",		TOK_IPOPTS },
2679758b77fSLuigi Rizzo 	{ "ipopts",		TOK_IPOPTS },
2689758b77fSLuigi Rizzo 	{ "iplen",		TOK_IPLEN },
2699758b77fSLuigi Rizzo 	{ "ipid",		TOK_IPID },
2709758b77fSLuigi Rizzo 	{ "ipprecedence",	TOK_IPPRECEDENCE },
27172662a75SLuigi Rizzo 	{ "dscp",		TOK_DSCP },
2729758b77fSLuigi Rizzo 	{ "iptos",		TOK_IPTOS },
2739758b77fSLuigi Rizzo 	{ "ipttl",		TOK_IPTTL },
2749758b77fSLuigi Rizzo 	{ "ipversion",		TOK_IPVER },
2759758b77fSLuigi Rizzo 	{ "ipver",		TOK_IPVER },
2769758b77fSLuigi Rizzo 	{ "estab",		TOK_ESTAB },
2779758b77fSLuigi Rizzo 	{ "established",	TOK_ESTAB },
2789758b77fSLuigi Rizzo 	{ "setup",		TOK_SETUP },
279ae99fd0eSLuigi Rizzo 	{ "sockarg",		TOK_SOCKARG },
280c99ee9e0SBrian Feldman 	{ "tcpdatalen",		TOK_TCPDATALEN },
2819758b77fSLuigi Rizzo 	{ "tcpflags",		TOK_TCPFLAGS },
2829758b77fSLuigi Rizzo 	{ "tcpflgs",		TOK_TCPFLAGS },
2839758b77fSLuigi Rizzo 	{ "tcpoptions",		TOK_TCPOPTS },
2849758b77fSLuigi Rizzo 	{ "tcpopts",		TOK_TCPOPTS },
2859758b77fSLuigi Rizzo 	{ "tcpseq",		TOK_TCPSEQ },
2869758b77fSLuigi Rizzo 	{ "tcpack",		TOK_TCPACK },
2879758b77fSLuigi Rizzo 	{ "tcpwin",		TOK_TCPWIN },
2880a7197a8SLuigi Rizzo 	{ "icmptype",		TOK_ICMPTYPES },
2899758b77fSLuigi Rizzo 	{ "icmptypes",		TOK_ICMPTYPES },
290e706181bSLuigi Rizzo 	{ "dst-ip",		TOK_DSTIP },
291e706181bSLuigi Rizzo 	{ "src-ip",		TOK_SRCIP },
292e706181bSLuigi Rizzo 	{ "dst-port",		TOK_DSTPORT },
293e706181bSLuigi Rizzo 	{ "src-port",		TOK_SRCPORT },
294e706181bSLuigi Rizzo 	{ "proto",		TOK_PROTO },
295e706181bSLuigi Rizzo 	{ "MAC",		TOK_MAC },
296e706181bSLuigi Rizzo 	{ "mac",		TOK_MAC },
297e706181bSLuigi Rizzo 	{ "mac-type",		TOK_MACTYPE },
298010dabb0SCrist J. Clark 	{ "verrevpath",		TOK_VERREVPATH },
29922b5770bSAndre Oppermann 	{ "versrcreach",	TOK_VERSRCREACH },
3005f9541ecSAndre Oppermann 	{ "antispoof",		TOK_ANTISPOOF },
301c3e5b9f1SLuigi Rizzo 	{ "ipsec",		TOK_IPSEC },
3028195404bSBrooks Davis 	{ "icmp6type",		TOK_ICMP6TYPES },
3038195404bSBrooks Davis 	{ "icmp6types",		TOK_ICMP6TYPES },
3048195404bSBrooks Davis 	{ "ext6hdr",		TOK_EXT6HDR},
3058195404bSBrooks Davis 	{ "flow-id",		TOK_FLOWID},
3068195404bSBrooks Davis 	{ "ipv6",		TOK_IPV6},
3078195404bSBrooks Davis 	{ "ip6",		TOK_IPV6},
30857cd6d26SMax Laier 	{ "ipv4",		TOK_IPV4},
30957cd6d26SMax Laier 	{ "ip4",		TOK_IPV4},
3108195404bSBrooks Davis 	{ "dst-ipv6",		TOK_DSTIP6},
3118195404bSBrooks Davis 	{ "dst-ip6",		TOK_DSTIP6},
3128195404bSBrooks Davis 	{ "src-ipv6",		TOK_SRCIP6},
3138195404bSBrooks Davis 	{ "src-ip6",		TOK_SRCIP6},
314472099c4SLuigi Rizzo 	{ "lookup",		TOK_LOOKUP},
31562ff38aeSLuigi Rizzo 	{ "//",			TOK_COMMENT },
3169758b77fSLuigi Rizzo 
3179758b77fSLuigi Rizzo 	{ "not",		TOK_NOT },		/* pseudo option */
3189758b77fSLuigi Rizzo 	{ "!", /* escape ? */	TOK_NOT },		/* pseudo option */
3199758b77fSLuigi Rizzo 	{ "or",			TOK_OR },		/* pseudo option */
3209758b77fSLuigi Rizzo 	{ "|", /* escape */	TOK_OR },		/* pseudo option */
3218ed2d749SLuigi Rizzo 	{ "{",			TOK_STARTBRACE },	/* pseudo option */
3228ed2d749SLuigi Rizzo 	{ "(",			TOK_STARTBRACE },	/* pseudo option */
3238ed2d749SLuigi Rizzo 	{ "}",			TOK_ENDBRACE },		/* pseudo option */
3248ed2d749SLuigi Rizzo 	{ ")",			TOK_ENDBRACE },		/* pseudo option */
325571f8c1bSLuigi Rizzo 	{ NULL, 0 }	/* terminator */
3269758b77fSLuigi Rizzo };
3279758b77fSLuigi Rizzo 
32850a99912SLuigi Rizzo /*
32937133ba7SLuigi Rizzo  * Helper routine to print a possibly unaligned uint64_t on
33037133ba7SLuigi Rizzo  * various platform. If width > 0, print the value with
33137133ba7SLuigi Rizzo  * the desired width, followed by a space;
33237133ba7SLuigi Rizzo  * otherwise, return the required width.
33350a99912SLuigi Rizzo  */
33437133ba7SLuigi Rizzo int
33537133ba7SLuigi Rizzo pr_u64(uint64_t *pd, int width)
33650a99912SLuigi Rizzo {
33737133ba7SLuigi Rizzo #ifdef TCC
33837133ba7SLuigi Rizzo #define U64_FMT "I64"
33937133ba7SLuigi Rizzo #else
34037133ba7SLuigi Rizzo #define U64_FMT "llu"
34137133ba7SLuigi Rizzo #endif
342d55ebfbdSLuigi Rizzo 	uint64_t u;
343d55ebfbdSLuigi Rizzo 	unsigned long long d;
344330462a3SBernd Walter 
345d55ebfbdSLuigi Rizzo 	bcopy (pd, &u, sizeof(u));
346d55ebfbdSLuigi Rizzo 	d = u;
34737133ba7SLuigi Rizzo 	return (width > 0) ?
34837133ba7SLuigi Rizzo 		printf("%*" U64_FMT " ", width, d) :
34937133ba7SLuigi Rizzo 		snprintf(NULL, 0, "%" U64_FMT, d) ;
35037133ba7SLuigi Rizzo #undef U64_FMT
351c85c1d27SStefan Farfeleder }
352330462a3SBernd Walter 
3533c0c8717SLuigi Rizzo void *
3545f356082SLuigi Rizzo safe_calloc(size_t number, size_t size)
3555f356082SLuigi Rizzo {
3565f356082SLuigi Rizzo 	void *ret = calloc(number, size);
3575f356082SLuigi Rizzo 
3585f356082SLuigi Rizzo 	if (ret == NULL)
3595f356082SLuigi Rizzo 		err(EX_OSERR, "calloc");
3605f356082SLuigi Rizzo 	return ret;
3615f356082SLuigi Rizzo }
3625f356082SLuigi Rizzo 
3633c0c8717SLuigi Rizzo void *
3645f356082SLuigi Rizzo safe_realloc(void *ptr, size_t size)
3655f356082SLuigi Rizzo {
3665f356082SLuigi Rizzo 	void *ret = realloc(ptr, size);
3675f356082SLuigi Rizzo 
3685f356082SLuigi Rizzo 	if (ret == NULL)
3695f356082SLuigi Rizzo 		err(EX_OSERR, "realloc");
3705f356082SLuigi Rizzo 	return ret;
3715f356082SLuigi Rizzo }
3725f356082SLuigi Rizzo 
373571f8c1bSLuigi Rizzo /*
374571f8c1bSLuigi Rizzo  * conditionally runs the command.
375cc4d3c30SLuigi Rizzo  * Selected options or negative -> getsockopt
376571f8c1bSLuigi Rizzo  */
3774e9c8ae7SLuigi Rizzo int
378884be75cSThomas Moestl do_cmd(int optname, void *optval, uintptr_t optlen)
379571f8c1bSLuigi Rizzo {
380571f8c1bSLuigi Rizzo 	int i;
381571f8c1bSLuigi Rizzo 
382db7c5224SLuigi Rizzo 	if (co.test_only)
383571f8c1bSLuigi Rizzo 		return 0;
384571f8c1bSLuigi Rizzo 
385*f8bee51aSAlexander V. Chernikov 	if (ipfw_socket == -1)
386*f8bee51aSAlexander V. Chernikov 		ipfw_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
387*f8bee51aSAlexander V. Chernikov 	if (ipfw_socket < 0)
388571f8c1bSLuigi Rizzo 		err(EX_UNAVAILABLE, "socket");
389571f8c1bSLuigi Rizzo 
390571f8c1bSLuigi Rizzo 	if (optname == IP_FW_GET || optname == IP_DUMMYNET_GET ||
391*f8bee51aSAlexander V. Chernikov 	    optname == IP_FW_ADD || optname == IP_FW3 ||
392ff2f6fe8SPaolo Pisati 	    optname == IP_FW_NAT_GET_CONFIG ||
393cc4d3c30SLuigi Rizzo 	    optname < 0 ||
394cc4d3c30SLuigi Rizzo 	    optname == IP_FW_NAT_GET_LOG) {
395cc4d3c30SLuigi Rizzo 		if (optname < 0)
396cc4d3c30SLuigi Rizzo 			optname = -optname;
397*f8bee51aSAlexander V. Chernikov 		i = getsockopt(ipfw_socket, IPPROTO_IP, optname, optval,
398571f8c1bSLuigi Rizzo 			(socklen_t *)optlen);
399cc4d3c30SLuigi Rizzo 	} else {
400*f8bee51aSAlexander V. Chernikov 		i = setsockopt(ipfw_socket, IPPROTO_IP, optname, optval, optlen);
401cc4d3c30SLuigi Rizzo 	}
402571f8c1bSLuigi Rizzo 	return i;
403571f8c1bSLuigi Rizzo }
404571f8c1bSLuigi Rizzo 
405*f8bee51aSAlexander V. Chernikov /*
406*f8bee51aSAlexander V. Chernikov  * do_setcmd3 - pass ipfw control cmd to kernel
407*f8bee51aSAlexander V. Chernikov  * @optname: option name
408*f8bee51aSAlexander V. Chernikov  * @optval: pointer to option data
409*f8bee51aSAlexander V. Chernikov  * @optlen: option length
410*f8bee51aSAlexander V. Chernikov  *
411*f8bee51aSAlexander V. Chernikov  * Function encapsulates option value in IP_FW3 socket option
412*f8bee51aSAlexander V. Chernikov  * and calls setsockopt().
413*f8bee51aSAlexander V. Chernikov  * Function returns 0 on success or -1 otherwise.
414*f8bee51aSAlexander V. Chernikov  */
415*f8bee51aSAlexander V. Chernikov int
416*f8bee51aSAlexander V. Chernikov do_setcmd3(int optname, void *optval, socklen_t optlen)
417*f8bee51aSAlexander V. Chernikov {
418*f8bee51aSAlexander V. Chernikov 	socklen_t len;
419*f8bee51aSAlexander V. Chernikov 	ip_fw3_opheader *op3;
420*f8bee51aSAlexander V. Chernikov 
421*f8bee51aSAlexander V. Chernikov 	if (co.test_only)
422*f8bee51aSAlexander V. Chernikov 		return (0);
423*f8bee51aSAlexander V. Chernikov 
424*f8bee51aSAlexander V. Chernikov 	if (ipfw_socket == -1)
425*f8bee51aSAlexander V. Chernikov 		ipfw_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
426*f8bee51aSAlexander V. Chernikov 	if (ipfw_socket < 0)
427*f8bee51aSAlexander V. Chernikov 		err(EX_UNAVAILABLE, "socket");
428*f8bee51aSAlexander V. Chernikov 
429*f8bee51aSAlexander V. Chernikov 	len = sizeof(ip_fw3_opheader) + optlen;
430*f8bee51aSAlexander V. Chernikov 	op3 = alloca(len);
431*f8bee51aSAlexander V. Chernikov 	/* Zero reserved fields */
432*f8bee51aSAlexander V. Chernikov 	memset(op3, 0, sizeof(ip_fw3_opheader));
433*f8bee51aSAlexander V. Chernikov 	memcpy(op3 + 1, optval, optlen);
434*f8bee51aSAlexander V. Chernikov 	op3->opcode = optname;
435*f8bee51aSAlexander V. Chernikov 
436*f8bee51aSAlexander V. Chernikov 	return setsockopt(ipfw_socket, IPPROTO_IP, IP_FW3, op3, len);
437*f8bee51aSAlexander V. Chernikov }
438*f8bee51aSAlexander V. Chernikov 
4399758b77fSLuigi Rizzo /**
4409758b77fSLuigi Rizzo  * match_token takes a table and a string, returns the value associated
441571f8c1bSLuigi Rizzo  * with the string (-1 in case of failure).
4429758b77fSLuigi Rizzo  */
4434e9c8ae7SLuigi Rizzo int
4449758b77fSLuigi Rizzo match_token(struct _s_x *table, char *string)
4459758b77fSLuigi Rizzo {
4469758b77fSLuigi Rizzo 	struct _s_x *pt;
44762ff38aeSLuigi Rizzo 	uint i = strlen(string);
4489758b77fSLuigi Rizzo 
4499758b77fSLuigi Rizzo 	for (pt = table ; i && pt->s != NULL ; pt++)
4509758b77fSLuigi Rizzo 		if (strlen(pt->s) == i && !bcmp(string, pt->s, i))
4519758b77fSLuigi Rizzo 			return pt->x;
4529758b77fSLuigi Rizzo 	return -1;
453c85c1d27SStefan Farfeleder }
4549758b77fSLuigi Rizzo 
455571f8c1bSLuigi Rizzo /**
456571f8c1bSLuigi Rizzo  * match_value takes a table and a value, returns the string associated
457571f8c1bSLuigi Rizzo  * with the value (NULL in case of failure).
458571f8c1bSLuigi Rizzo  */
459ead75a59SLuigi Rizzo char const *
46062ff38aeSLuigi Rizzo match_value(struct _s_x *p, int value)
4619758b77fSLuigi Rizzo {
4629758b77fSLuigi Rizzo 	for (; p->s != NULL; p++)
4639758b77fSLuigi Rizzo 		if (p->x == value)
4649758b77fSLuigi Rizzo 			return p->s;
4659758b77fSLuigi Rizzo 	return NULL;
4669758b77fSLuigi Rizzo }
4679758b77fSLuigi Rizzo 
4689758b77fSLuigi Rizzo /*
46901750186SBrooks Davis  * _substrcmp takes two strings and returns 1 if they do not match,
47001750186SBrooks Davis  * and 0 if they match exactly or the first string is a sub-string
47101750186SBrooks Davis  * of the second.  A warning is printed to stderr in the case that the
47201750186SBrooks Davis  * first string is a sub-string of the second.
47301750186SBrooks Davis  *
47401750186SBrooks Davis  * This function will be removed in the future through the usual
47501750186SBrooks Davis  * deprecation process.
47601750186SBrooks Davis  */
4773c0c8717SLuigi Rizzo int
47801750186SBrooks Davis _substrcmp(const char *str1, const char* str2)
47901750186SBrooks Davis {
48001750186SBrooks Davis 
48101750186SBrooks Davis 	if (strncmp(str1, str2, strlen(str1)) != 0)
48201750186SBrooks Davis 		return 1;
48301750186SBrooks Davis 
48401750186SBrooks Davis 	if (strlen(str1) != strlen(str2))
48501750186SBrooks Davis 		warnx("DEPRECATED: '%s' matched '%s' as a sub-string",
48601750186SBrooks Davis 		    str1, str2);
48701750186SBrooks Davis 	return 0;
48801750186SBrooks Davis }
48901750186SBrooks Davis 
49001750186SBrooks Davis /*
49101750186SBrooks Davis  * _substrcmp2 takes three strings and returns 1 if the first two do not match,
49201750186SBrooks Davis  * and 0 if they match exactly or the second string is a sub-string
49301750186SBrooks Davis  * of the first.  A warning is printed to stderr in the case that the
49401750186SBrooks Davis  * first string does not match the third.
49501750186SBrooks Davis  *
4964b85a12fSUlrich Spörlein  * This function exists to warn about the bizarre construction
4974b85a12fSUlrich Spörlein  * strncmp(str, "by", 2) which is used to allow people to use a shortcut
49801750186SBrooks Davis  * for "bytes".  The problem is that in addition to accepting "by",
49901750186SBrooks Davis  * "byt", "byte", and "bytes", it also excepts "by_rabid_dogs" and any
50001750186SBrooks Davis  * other string beginning with "by".
50101750186SBrooks Davis  *
50201750186SBrooks Davis  * This function will be removed in the future through the usual
50301750186SBrooks Davis  * deprecation process.
50401750186SBrooks Davis  */
5054e9c8ae7SLuigi Rizzo int
50601750186SBrooks Davis _substrcmp2(const char *str1, const char* str2, const char* str3)
50701750186SBrooks Davis {
50801750186SBrooks Davis 
50901750186SBrooks Davis 	if (strncmp(str1, str2, strlen(str2)) != 0)
51001750186SBrooks Davis 		return 1;
51101750186SBrooks Davis 
51201750186SBrooks Davis 	if (strcmp(str1, str3) != 0)
51301750186SBrooks Davis 		warnx("DEPRECATED: '%s' matched '%s'",
51401750186SBrooks Davis 		    str1, str3);
51501750186SBrooks Davis 	return 0;
51601750186SBrooks Davis }
51701750186SBrooks Davis 
51801750186SBrooks Davis /*
5199758b77fSLuigi Rizzo  * prints one port, symbolic or numeric
5209758b77fSLuigi Rizzo  */
5219758b77fSLuigi Rizzo static void
522571f8c1bSLuigi Rizzo print_port(int proto, uint16_t port)
5239758b77fSLuigi Rizzo {
5249758b77fSLuigi Rizzo 
5259758b77fSLuigi Rizzo 	if (proto == IPPROTO_ETHERTYPE) {
52662ff38aeSLuigi Rizzo 		char const *s;
5279758b77fSLuigi Rizzo 
528db7c5224SLuigi Rizzo 		if (co.do_resolv && (s = match_value(ether_types, port)) )
5299758b77fSLuigi Rizzo 			printf("%s", s);
5309758b77fSLuigi Rizzo 		else
5319758b77fSLuigi Rizzo 			printf("0x%04x", port);
5329758b77fSLuigi Rizzo 	} else {
5339758b77fSLuigi Rizzo 		struct servent *se = NULL;
534db7c5224SLuigi Rizzo 		if (co.do_resolv) {
5359758b77fSLuigi Rizzo 			struct protoent *pe = getprotobynumber(proto);
5369758b77fSLuigi Rizzo 
5379758b77fSLuigi Rizzo 			se = getservbyport(htons(port), pe ? pe->p_name : NULL);
5389758b77fSLuigi Rizzo 		}
5399758b77fSLuigi Rizzo 		if (se)
5409758b77fSLuigi Rizzo 			printf("%s", se->s_name);
5419758b77fSLuigi Rizzo 		else
5429758b77fSLuigi Rizzo 			printf("%d", port);
5439758b77fSLuigi Rizzo 	}
5449758b77fSLuigi Rizzo }
5459758b77fSLuigi Rizzo 
5464e9c8ae7SLuigi Rizzo static struct _s_x _port_name[] = {
547571f8c1bSLuigi Rizzo 	{"dst-port",	O_IP_DSTPORT},
548571f8c1bSLuigi Rizzo 	{"src-port",	O_IP_SRCPORT},
549571f8c1bSLuigi Rizzo 	{"ipid",	O_IPID},
550571f8c1bSLuigi Rizzo 	{"iplen",	O_IPLEN},
551571f8c1bSLuigi Rizzo 	{"ipttl",	O_IPTTL},
552571f8c1bSLuigi Rizzo 	{"mac-type",	O_MAC_TYPE},
553c99ee9e0SBrian Feldman 	{"tcpdatalen",	O_TCPDATALEN},
55423ccd3d9SGleb Smirnoff 	{"tcpwin",	O_TCPWIN},
5556a7d5cb6SOleg Bulyzhin 	{"tagged",	O_TAGGED},
556571f8c1bSLuigi Rizzo 	{NULL,		0}
557571f8c1bSLuigi Rizzo };
558571f8c1bSLuigi Rizzo 
5599758b77fSLuigi Rizzo /*
560571f8c1bSLuigi Rizzo  * Print the values in a list 16-bit items of the types above.
5619758b77fSLuigi Rizzo  * XXX todo: add support for mask.
5629758b77fSLuigi Rizzo  */
5639758b77fSLuigi Rizzo static void
564e706181bSLuigi Rizzo print_newports(ipfw_insn_u16 *cmd, int proto, int opcode)
5659758b77fSLuigi Rizzo {
566571f8c1bSLuigi Rizzo 	uint16_t *p = cmd->ports;
5679758b77fSLuigi Rizzo 	int i;
56862ff38aeSLuigi Rizzo 	char const *sep;
5699758b77fSLuigi Rizzo 
57044c884e1SLuigi Rizzo 	if (opcode != 0) {
571571f8c1bSLuigi Rizzo 		sep = match_value(_port_name, opcode);
572571f8c1bSLuigi Rizzo 		if (sep == NULL)
57344c884e1SLuigi Rizzo 			sep = "???";
57444c884e1SLuigi Rizzo 		printf (" %s", sep);
57544c884e1SLuigi Rizzo 	}
57644c884e1SLuigi Rizzo 	sep = " ";
5779758b77fSLuigi Rizzo 	for (i = F_LEN((ipfw_insn *)cmd) - 1; i > 0; i--, p += 2) {
57891dbeea7SLuigi Rizzo 		printf("%s", sep);
5799758b77fSLuigi Rizzo 		print_port(proto, p[0]);
5809758b77fSLuigi Rizzo 		if (p[0] != p[1]) {
5819758b77fSLuigi Rizzo 			printf("-");
5829758b77fSLuigi Rizzo 			print_port(proto, p[1]);
5839758b77fSLuigi Rizzo 		}
5849758b77fSLuigi Rizzo 		sep = ",";
5859758b77fSLuigi Rizzo 	}
5869758b77fSLuigi Rizzo }
5879758b77fSLuigi Rizzo 
5889758b77fSLuigi Rizzo /*
5899758b77fSLuigi Rizzo  * Like strtol, but also translates service names into port numbers
5909758b77fSLuigi Rizzo  * for some protocols.
5919758b77fSLuigi Rizzo  * In particular:
5929758b77fSLuigi Rizzo  *	proto == -1 disables the protocol check;
5939758b77fSLuigi Rizzo  *	proto == IPPROTO_ETHERTYPE looks up an internal table
5949758b77fSLuigi Rizzo  *	proto == <some value in /etc/protocols> matches the values there.
59543405724SLuigi Rizzo  * Returns *end == s in case the parameter is not found.
5969758b77fSLuigi Rizzo  */
5979758b77fSLuigi Rizzo static int
5989758b77fSLuigi Rizzo strtoport(char *s, char **end, int base, int proto)
5999758b77fSLuigi Rizzo {
60043405724SLuigi Rizzo 	char *p, *buf;
60143405724SLuigi Rizzo 	char *s1;
6029758b77fSLuigi Rizzo 	int i;
6039758b77fSLuigi Rizzo 
60443405724SLuigi Rizzo 	*end = s;		/* default - not found */
6059758b77fSLuigi Rizzo 	if (*s == '\0')
60643405724SLuigi Rizzo 		return 0;	/* not found */
6079758b77fSLuigi Rizzo 
6089758b77fSLuigi Rizzo 	if (isdigit(*s))
6099758b77fSLuigi Rizzo 		return strtol(s, end, base);
6109758b77fSLuigi Rizzo 
6119758b77fSLuigi Rizzo 	/*
61243405724SLuigi Rizzo 	 * find separator. '\\' escapes the next char.
6139758b77fSLuigi Rizzo 	 */
61443405724SLuigi Rizzo 	for (s1 = s; *s1 && (isalnum(*s1) || *s1 == '\\') ; s1++)
61543405724SLuigi Rizzo 		if (*s1 == '\\' && s1[1] != '\0')
61643405724SLuigi Rizzo 			s1++;
61743405724SLuigi Rizzo 
6185f356082SLuigi Rizzo 	buf = safe_calloc(s1 - s + 1, 1);
61943405724SLuigi Rizzo 
62043405724SLuigi Rizzo 	/*
62143405724SLuigi Rizzo 	 * copy into a buffer skipping backslashes
62243405724SLuigi Rizzo 	 */
62343405724SLuigi Rizzo 	for (p = s, i = 0; p != s1 ; p++)
62443405724SLuigi Rizzo 		if (*p != '\\')
62543405724SLuigi Rizzo 			buf[i++] = *p;
62643405724SLuigi Rizzo 	buf[i++] = '\0';
6279758b77fSLuigi Rizzo 
6289758b77fSLuigi Rizzo 	if (proto == IPPROTO_ETHERTYPE) {
62943405724SLuigi Rizzo 		i = match_token(ether_types, buf);
63043405724SLuigi Rizzo 		free(buf);
63143405724SLuigi Rizzo 		if (i != -1) {	/* found */
6329758b77fSLuigi Rizzo 			*end = s1;
6339758b77fSLuigi Rizzo 			return i;
6349758b77fSLuigi Rizzo 		}
6359758b77fSLuigi Rizzo 	} else {
6369758b77fSLuigi Rizzo 		struct protoent *pe = NULL;
6379758b77fSLuigi Rizzo 		struct servent *se;
6389758b77fSLuigi Rizzo 
6399758b77fSLuigi Rizzo 		if (proto != 0)
6409758b77fSLuigi Rizzo 			pe = getprotobynumber(proto);
6419758b77fSLuigi Rizzo 		setservent(1);
64243405724SLuigi Rizzo 		se = getservbyname(buf, pe ? pe->p_name : NULL);
64343405724SLuigi Rizzo 		free(buf);
6449758b77fSLuigi Rizzo 		if (se != NULL) {
6459758b77fSLuigi Rizzo 			*end = s1;
6469758b77fSLuigi Rizzo 			return ntohs(se->s_port);
6479758b77fSLuigi Rizzo 		}
6489758b77fSLuigi Rizzo 	}
64943405724SLuigi Rizzo 	return 0;	/* not found */
6509758b77fSLuigi Rizzo }
6519758b77fSLuigi Rizzo 
6529758b77fSLuigi Rizzo /*
653571f8c1bSLuigi Rizzo  * Fill the body of the command with the list of port ranges.
6549758b77fSLuigi Rizzo  */
6559758b77fSLuigi Rizzo static int
6569758b77fSLuigi Rizzo fill_newports(ipfw_insn_u16 *cmd, char *av, int proto)
6579758b77fSLuigi Rizzo {
658571f8c1bSLuigi Rizzo 	uint16_t a, b, *p = cmd->ports;
6599758b77fSLuigi Rizzo 	int i = 0;
660e706181bSLuigi Rizzo 	char *s = av;
6619758b77fSLuigi Rizzo 
662e706181bSLuigi Rizzo 	while (*s) {
6639758b77fSLuigi Rizzo 		a = strtoport(av, &s, 0, proto);
664254c4725SOleg Bulyzhin 		if (s == av) 			/* empty or invalid argument */
665254c4725SOleg Bulyzhin 			return (0);
666254c4725SOleg Bulyzhin 
667254c4725SOleg Bulyzhin 		switch (*s) {
668254c4725SOleg Bulyzhin 		case '-':			/* a range */
6699758b77fSLuigi Rizzo 			av = s + 1;
6709758b77fSLuigi Rizzo 			b = strtoport(av, &s, 0, proto);
671254c4725SOleg Bulyzhin 			/* Reject expressions like '1-abc' or '1-2-3'. */
672254c4725SOleg Bulyzhin 			if (s == av || (*s != ',' && *s != '\0'))
673254c4725SOleg Bulyzhin 				return (0);
6749758b77fSLuigi Rizzo 			p[0] = a;
6759758b77fSLuigi Rizzo 			p[1] = b;
676254c4725SOleg Bulyzhin 			break;
677254c4725SOleg Bulyzhin 		case ',':			/* comma separated list */
678254c4725SOleg Bulyzhin 		case '\0':
6799758b77fSLuigi Rizzo 			p[0] = p[1] = a;
680254c4725SOleg Bulyzhin 			break;
681254c4725SOleg Bulyzhin 		default:
682254c4725SOleg Bulyzhin 			warnx("port list: invalid separator <%c> in <%s>",
68399e5e645SLuigi Rizzo 				*s, av);
684254c4725SOleg Bulyzhin 			return (0);
685254c4725SOleg Bulyzhin 		}
686254c4725SOleg Bulyzhin 
687e706181bSLuigi Rizzo 		i++;
688e706181bSLuigi Rizzo 		p += 2;
6899758b77fSLuigi Rizzo 		av = s + 1;
6909758b77fSLuigi Rizzo 	}
6919758b77fSLuigi Rizzo 	if (i > 0) {
6929758b77fSLuigi Rizzo 		if (i + 1 > F_LEN_MASK)
693e706181bSLuigi Rizzo 			errx(EX_DATAERR, "too many ports/ranges\n");
6949758b77fSLuigi Rizzo 		cmd->o.len |= i + 1;	/* leave F_NOT and F_OR untouched */
6959758b77fSLuigi Rizzo 	}
696254c4725SOleg Bulyzhin 	return (i);
6979758b77fSLuigi Rizzo }
6989758b77fSLuigi Rizzo 
6999758b77fSLuigi Rizzo static struct _s_x icmpcodes[] = {
7009758b77fSLuigi Rizzo       { "net",			ICMP_UNREACH_NET },
7019758b77fSLuigi Rizzo       { "host",			ICMP_UNREACH_HOST },
7029758b77fSLuigi Rizzo       { "protocol",		ICMP_UNREACH_PROTOCOL },
7039758b77fSLuigi Rizzo       { "port",			ICMP_UNREACH_PORT },
7049758b77fSLuigi Rizzo       { "needfrag",		ICMP_UNREACH_NEEDFRAG },
7059758b77fSLuigi Rizzo       { "srcfail",		ICMP_UNREACH_SRCFAIL },
7069758b77fSLuigi Rizzo       { "net-unknown",		ICMP_UNREACH_NET_UNKNOWN },
7079758b77fSLuigi Rizzo       { "host-unknown",		ICMP_UNREACH_HOST_UNKNOWN },
7089758b77fSLuigi Rizzo       { "isolated",		ICMP_UNREACH_ISOLATED },
7099758b77fSLuigi Rizzo       { "net-prohib",		ICMP_UNREACH_NET_PROHIB },
7109758b77fSLuigi Rizzo       { "host-prohib",		ICMP_UNREACH_HOST_PROHIB },
7119758b77fSLuigi Rizzo       { "tosnet",		ICMP_UNREACH_TOSNET },
7129758b77fSLuigi Rizzo       { "toshost",		ICMP_UNREACH_TOSHOST },
7139758b77fSLuigi Rizzo       { "filter-prohib",	ICMP_UNREACH_FILTER_PROHIB },
7149758b77fSLuigi Rizzo       { "host-precedence",	ICMP_UNREACH_HOST_PRECEDENCE },
7159758b77fSLuigi Rizzo       { "precedence-cutoff",	ICMP_UNREACH_PRECEDENCE_CUTOFF },
7169758b77fSLuigi Rizzo       { NULL, 0 }
7179758b77fSLuigi Rizzo };
7189758b77fSLuigi Rizzo 
7199758b77fSLuigi Rizzo static void
7209758b77fSLuigi Rizzo fill_reject_code(u_short *codep, char *str)
7219758b77fSLuigi Rizzo {
7229758b77fSLuigi Rizzo 	int val;
7239758b77fSLuigi Rizzo 	char *s;
7249758b77fSLuigi Rizzo 
7259758b77fSLuigi Rizzo 	val = strtoul(str, &s, 0);
7269758b77fSLuigi Rizzo 	if (s == str || *s != '\0' || val >= 0x100)
7279758b77fSLuigi Rizzo 		val = match_token(icmpcodes, str);
728e706181bSLuigi Rizzo 	if (val < 0)
7299758b77fSLuigi Rizzo 		errx(EX_DATAERR, "unknown ICMP unreachable code ``%s''", str);
7309758b77fSLuigi Rizzo 	*codep = val;
7319758b77fSLuigi Rizzo 	return;
7329758b77fSLuigi Rizzo }
7339758b77fSLuigi Rizzo 
7349758b77fSLuigi Rizzo static void
735571f8c1bSLuigi Rizzo print_reject_code(uint16_t code)
7369758b77fSLuigi Rizzo {
73762ff38aeSLuigi Rizzo 	char const *s = match_value(icmpcodes, code);
7389758b77fSLuigi Rizzo 
7399758b77fSLuigi Rizzo 	if (s != NULL)
7405e43aef8SLuigi Rizzo 		printf("unreach %s", s);
7419758b77fSLuigi Rizzo 	else
7425e43aef8SLuigi Rizzo 		printf("unreach %u", code);
7439758b77fSLuigi Rizzo }
7449758b77fSLuigi Rizzo 
7459758b77fSLuigi Rizzo /*
7469758b77fSLuigi Rizzo  * Returns the number of bits set (from left) in a contiguous bitmask,
7479758b77fSLuigi Rizzo  * or -1 if the mask is not contiguous.
7489758b77fSLuigi Rizzo  * XXX this needs a proper fix.
7499758b77fSLuigi Rizzo  * This effectively works on masks in big-endian (network) format.
7509758b77fSLuigi Rizzo  * when compiled on little endian architectures.
7519758b77fSLuigi Rizzo  *
7529758b77fSLuigi Rizzo  * First bit is bit 7 of the first byte -- note, for MAC addresses,
7539758b77fSLuigi Rizzo  * the first bit on the wire is bit 0 of the first byte.
7549758b77fSLuigi Rizzo  * len is the max length in bits.
7559758b77fSLuigi Rizzo  */
756ead75a59SLuigi Rizzo int
757f3a126d3SLuigi Rizzo contigmask(uint8_t *p, int len)
7589758b77fSLuigi Rizzo {
7599758b77fSLuigi Rizzo 	int i, n;
760f3a126d3SLuigi Rizzo 
7619758b77fSLuigi Rizzo 	for (i=0; i<len ; i++)
7629758b77fSLuigi Rizzo 		if ( (p[i/8] & (1 << (7 - (i%8)))) == 0) /* first bit unset */
7639758b77fSLuigi Rizzo 			break;
7649758b77fSLuigi Rizzo 	for (n=i+1; n < len; n++)
7659758b77fSLuigi Rizzo 		if ( (p[n/8] & (1 << (7 - (n%8)))) != 0)
7669758b77fSLuigi Rizzo 			return -1; /* mask not contiguous */
7679758b77fSLuigi Rizzo 	return i;
7689758b77fSLuigi Rizzo }
7699758b77fSLuigi Rizzo 
7709758b77fSLuigi Rizzo /*
7719758b77fSLuigi Rizzo  * print flags set/clear in the two bitmasks passed as parameters.
7729758b77fSLuigi Rizzo  * There is a specialized check for f_tcpflags.
7739758b77fSLuigi Rizzo  */
7749758b77fSLuigi Rizzo static void
77562ff38aeSLuigi Rizzo print_flags(char const *name, ipfw_insn *cmd, struct _s_x *list)
7769758b77fSLuigi Rizzo {
77762ff38aeSLuigi Rizzo 	char const *comma = "";
7789758b77fSLuigi Rizzo 	int i;
779f3a126d3SLuigi Rizzo 	uint8_t set = cmd->arg1 & 0xff;
780f3a126d3SLuigi Rizzo 	uint8_t clear = (cmd->arg1 >> 8) & 0xff;
7819758b77fSLuigi Rizzo 
7829758b77fSLuigi Rizzo 	if (list == f_tcpflags && set == TH_SYN && clear == TH_ACK) {
7839758b77fSLuigi Rizzo 		printf(" setup");
7849758b77fSLuigi Rizzo 		return;
7859758b77fSLuigi Rizzo 	}
7869758b77fSLuigi Rizzo 
7879758b77fSLuigi Rizzo 	printf(" %s ", name);
7889758b77fSLuigi Rizzo 	for (i=0; list[i].x != 0; i++) {
7899758b77fSLuigi Rizzo 		if (set & list[i].x) {
7909758b77fSLuigi Rizzo 			set &= ~list[i].x;
7919758b77fSLuigi Rizzo 			printf("%s%s", comma, list[i].s);
7929758b77fSLuigi Rizzo 			comma = ",";
7939758b77fSLuigi Rizzo 		}
7949758b77fSLuigi Rizzo 		if (clear & list[i].x) {
7959758b77fSLuigi Rizzo 			clear &= ~list[i].x;
7969758b77fSLuigi Rizzo 			printf("%s!%s", comma, list[i].s);
7979758b77fSLuigi Rizzo 			comma = ",";
7989758b77fSLuigi Rizzo 		}
7999758b77fSLuigi Rizzo 	}
8009758b77fSLuigi Rizzo }
8019758b77fSLuigi Rizzo 
8029758b77fSLuigi Rizzo /*
8039758b77fSLuigi Rizzo  * Print the ip address contained in a command.
8049758b77fSLuigi Rizzo  */
8059758b77fSLuigi Rizzo static void
80662ff38aeSLuigi Rizzo print_ip(ipfw_insn_ip *cmd, char const *s)
8079758b77fSLuigi Rizzo {
8089758b77fSLuigi Rizzo 	struct hostent *he = NULL;
809cc4d3c30SLuigi Rizzo 	uint32_t len = F_LEN((ipfw_insn *)cmd);
810571f8c1bSLuigi Rizzo 	uint32_t *a = ((ipfw_insn_u32 *)cmd)->d;
8119758b77fSLuigi Rizzo 
812472099c4SLuigi Rizzo 	if (cmd->o.opcode == O_IP_DST_LOOKUP && len > F_INSN_SIZE(ipfw_insn_u32)) {
813472099c4SLuigi Rizzo 		uint32_t d = a[1];
814472099c4SLuigi Rizzo 		const char *arg = "<invalid>";
815472099c4SLuigi Rizzo 
816472099c4SLuigi Rizzo 		if (d < sizeof(lookup_key)/sizeof(lookup_key[0]))
817472099c4SLuigi Rizzo 			arg = match_value(rule_options, lookup_key[d]);
818472099c4SLuigi Rizzo 		printf("%s lookup %s %d", cmd->o.len & F_NOT ? " not": "",
819472099c4SLuigi Rizzo 			arg, cmd->o.arg1);
820472099c4SLuigi Rizzo 		return;
821472099c4SLuigi Rizzo 	}
822e706181bSLuigi Rizzo 	printf("%s%s ", cmd->o.len & F_NOT ? " not": "", s);
8239758b77fSLuigi Rizzo 
8249758b77fSLuigi Rizzo 	if (cmd->o.opcode == O_IP_SRC_ME || cmd->o.opcode == O_IP_DST_ME) {
8259758b77fSLuigi Rizzo 		printf("me");
8269758b77fSLuigi Rizzo 		return;
8279758b77fSLuigi Rizzo 	}
828cd8b5ae0SRuslan Ermilov 	if (cmd->o.opcode == O_IP_SRC_LOOKUP ||
829cd8b5ae0SRuslan Ermilov 	    cmd->o.opcode == O_IP_DST_LOOKUP) {
830cd8b5ae0SRuslan Ermilov 		printf("table(%u", ((ipfw_insn *)cmd)->arg1);
831cd8b5ae0SRuslan Ermilov 		if (len == F_INSN_SIZE(ipfw_insn_u32))
832cd8b5ae0SRuslan Ermilov 			printf(",%u", *a);
833cd8b5ae0SRuslan Ermilov 		printf(")");
834cd8b5ae0SRuslan Ermilov 		return;
835cd8b5ae0SRuslan Ermilov 	}
8369758b77fSLuigi Rizzo 	if (cmd->o.opcode == O_IP_SRC_SET || cmd->o.opcode == O_IP_DST_SET) {
837571f8c1bSLuigi Rizzo 		uint32_t x, *map = (uint32_t *)&(cmd->mask);
8389ef3f16dSLuigi Rizzo 		int i, j;
8399758b77fSLuigi Rizzo 		char comma = '{';
8409758b77fSLuigi Rizzo 
8419758b77fSLuigi Rizzo 		x = cmd->o.arg1 - 1;
8429758b77fSLuigi Rizzo 		x = htonl( ~x );
8439758b77fSLuigi Rizzo 		cmd->addr.s_addr = htonl(cmd->addr.s_addr);
8449758b77fSLuigi Rizzo 		printf("%s/%d", inet_ntoa(cmd->addr),
845f3a126d3SLuigi Rizzo 			contigmask((uint8_t *)&x, 32));
8469758b77fSLuigi Rizzo 		x = cmd->addr.s_addr = htonl(cmd->addr.s_addr);
8479758b77fSLuigi Rizzo 		x &= 0xff; /* base */
8489ef3f16dSLuigi Rizzo 		/*
8499ef3f16dSLuigi Rizzo 		 * Print bits and ranges.
8509ef3f16dSLuigi Rizzo 		 * Locate first bit set (i), then locate first bit unset (j).
8519ef3f16dSLuigi Rizzo 		 * If we have 3+ consecutive bits set, then print them as a
8529ef3f16dSLuigi Rizzo 		 * range, otherwise only print the initial bit and rescan.
8539ef3f16dSLuigi Rizzo 		 */
8549758b77fSLuigi Rizzo 		for (i=0; i < cmd->o.arg1; i++)
855571f8c1bSLuigi Rizzo 			if (map[i/32] & (1<<(i & 31))) {
8569ef3f16dSLuigi Rizzo 				for (j=i+1; j < cmd->o.arg1; j++)
857571f8c1bSLuigi Rizzo 					if (!(map[ j/32] & (1<<(j & 31))))
8589ef3f16dSLuigi Rizzo 						break;
8599758b77fSLuigi Rizzo 				printf("%c%d", comma, i+x);
8609ef3f16dSLuigi Rizzo 				if (j>i+2) { /* range has at least 3 elements */
8619ef3f16dSLuigi Rizzo 					printf("-%d", j-1+x);
8629ef3f16dSLuigi Rizzo 					i = j-1;
8639ef3f16dSLuigi Rizzo 				}
8649758b77fSLuigi Rizzo 				comma = ',';
8659758b77fSLuigi Rizzo 			}
8669758b77fSLuigi Rizzo 		printf("}");
8679758b77fSLuigi Rizzo 		return;
8689758b77fSLuigi Rizzo 	}
869571f8c1bSLuigi Rizzo 	/*
870571f8c1bSLuigi Rizzo 	 * len == 2 indicates a single IP, whereas lists of 1 or more
871571f8c1bSLuigi Rizzo 	 * addr/mask pairs have len = (2n+1). We convert len to n so we
872571f8c1bSLuigi Rizzo 	 * use that to count the number of entries.
873571f8c1bSLuigi Rizzo 	 */
874571f8c1bSLuigi Rizzo     for (len = len / 2; len > 0; len--, a += 2) {
875571f8c1bSLuigi Rizzo 	int mb =	/* mask length */
876571f8c1bSLuigi Rizzo 	    (cmd->o.opcode == O_IP_SRC || cmd->o.opcode == O_IP_DST) ?
877f3a126d3SLuigi Rizzo 		32 : contigmask((uint8_t *)&(a[1]), 32);
878db7c5224SLuigi Rizzo 	if (mb == 32 && co.do_resolv)
879571f8c1bSLuigi Rizzo 		he = gethostbyaddr((char *)&(a[0]), sizeof(u_long), AF_INET);
8809758b77fSLuigi Rizzo 	if (he != NULL)		/* resolved to name */
8819758b77fSLuigi Rizzo 		printf("%s", he->h_name);
8829758b77fSLuigi Rizzo 	else if (mb == 0)	/* any */
8839758b77fSLuigi Rizzo 		printf("any");
8849758b77fSLuigi Rizzo 	else {		/* numeric IP followed by some kind of mask */
885571f8c1bSLuigi Rizzo 		printf("%s", inet_ntoa( *((struct in_addr *)&a[0]) ) );
8869758b77fSLuigi Rizzo 		if (mb < 0)
887571f8c1bSLuigi Rizzo 			printf(":%s", inet_ntoa( *((struct in_addr *)&a[1]) ) );
8889758b77fSLuigi Rizzo 		else if (mb < 32)
8899758b77fSLuigi Rizzo 			printf("/%d", mb);
8909758b77fSLuigi Rizzo 	}
891571f8c1bSLuigi Rizzo 	if (len > 1)
892571f8c1bSLuigi Rizzo 		printf(",");
893571f8c1bSLuigi Rizzo     }
8949758b77fSLuigi Rizzo }
8959758b77fSLuigi Rizzo 
8969758b77fSLuigi Rizzo /*
8979758b77fSLuigi Rizzo  * prints a MAC address/mask pair
8989758b77fSLuigi Rizzo  */
8999758b77fSLuigi Rizzo static void
900f3a126d3SLuigi Rizzo print_mac(uint8_t *addr, uint8_t *mask)
9019758b77fSLuigi Rizzo {
9029758b77fSLuigi Rizzo 	int l = contigmask(mask, 48);
9039758b77fSLuigi Rizzo 
9049758b77fSLuigi Rizzo 	if (l == 0)
9059758b77fSLuigi Rizzo 		printf(" any");
9069758b77fSLuigi Rizzo 	else {
9079758b77fSLuigi Rizzo 		printf(" %02x:%02x:%02x:%02x:%02x:%02x",
9089758b77fSLuigi Rizzo 		    addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
9099758b77fSLuigi Rizzo 		if (l == -1)
9109758b77fSLuigi Rizzo 			printf("&%02x:%02x:%02x:%02x:%02x:%02x",
9119758b77fSLuigi Rizzo 			    mask[0], mask[1], mask[2],
9129758b77fSLuigi Rizzo 			    mask[3], mask[4], mask[5]);
9139758b77fSLuigi Rizzo 		else if (l < 48)
9149758b77fSLuigi Rizzo 			printf("/%d", l);
9159758b77fSLuigi Rizzo 	}
9169758b77fSLuigi Rizzo }
9179758b77fSLuigi Rizzo 
9185e43aef8SLuigi Rizzo static void
9195e43aef8SLuigi Rizzo fill_icmptypes(ipfw_insn_u32 *cmd, char *av)
9205e43aef8SLuigi Rizzo {
921571f8c1bSLuigi Rizzo 	uint8_t type;
9225e43aef8SLuigi Rizzo 
9235e43aef8SLuigi Rizzo 	cmd->d[0] = 0;
9245e43aef8SLuigi Rizzo 	while (*av) {
9255e43aef8SLuigi Rizzo 		if (*av == ',')
9265e43aef8SLuigi Rizzo 			av++;
9275e43aef8SLuigi Rizzo 
9285e43aef8SLuigi Rizzo 		type = strtoul(av, &av, 0);
9295e43aef8SLuigi Rizzo 
9305e43aef8SLuigi Rizzo 		if (*av != ',' && *av != '\0')
9315e43aef8SLuigi Rizzo 			errx(EX_DATAERR, "invalid ICMP type");
9325e43aef8SLuigi Rizzo 
9335e43aef8SLuigi Rizzo 		if (type > 31)
9345e43aef8SLuigi Rizzo 			errx(EX_DATAERR, "ICMP type out of range");
9355e43aef8SLuigi Rizzo 
9365e43aef8SLuigi Rizzo 		cmd->d[0] |= 1 << type;
9375e43aef8SLuigi Rizzo 	}
9385e43aef8SLuigi Rizzo 	cmd->o.opcode = O_ICMPTYPE;
9395e43aef8SLuigi Rizzo 	cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32);
9405e43aef8SLuigi Rizzo }
9415e43aef8SLuigi Rizzo 
9425e43aef8SLuigi Rizzo static void
9435e43aef8SLuigi Rizzo print_icmptypes(ipfw_insn_u32 *cmd)
9445e43aef8SLuigi Rizzo {
9455e43aef8SLuigi Rizzo 	int i;
9465e43aef8SLuigi Rizzo 	char sep= ' ';
9475e43aef8SLuigi Rizzo 
9485e43aef8SLuigi Rizzo 	printf(" icmptypes");
9495e43aef8SLuigi Rizzo 	for (i = 0; i < 32; i++) {
9505e43aef8SLuigi Rizzo 		if ( (cmd->d[0] & (1 << (i))) == 0)
9515e43aef8SLuigi Rizzo 			continue;
9525e43aef8SLuigi Rizzo 		printf("%c%d", sep, i);
9535e43aef8SLuigi Rizzo 		sep = ',';
9545e43aef8SLuigi Rizzo 	}
9555e43aef8SLuigi Rizzo }
9569758b77fSLuigi Rizzo 
9579758b77fSLuigi Rizzo /*
9589758b77fSLuigi Rizzo  * show_ipfw() prints the body of an ipfw rule.
9599758b77fSLuigi Rizzo  * Because the standard rule has at least proto src_ip dst_ip, we use
9609758b77fSLuigi Rizzo  * a helper function to produce these entries if not provided explicitly.
961e706181bSLuigi Rizzo  * The first argument is the list of fields we have, the second is
962e706181bSLuigi Rizzo  * the list of fields we want to be printed.
96399e5e645SLuigi Rizzo  *
964e706181bSLuigi Rizzo  * Special cases if we have provided a MAC header:
965e706181bSLuigi Rizzo  *   + if the rule does not contain IP addresses/ports, do not print them;
966e706181bSLuigi Rizzo  *   + if the rule does not contain an IP proto, print "all" instead of "ip";
967e706181bSLuigi Rizzo  *
968e706181bSLuigi Rizzo  * Once we have 'have_options', IP header fields are printed as options.
9699758b77fSLuigi Rizzo  */
97099e5e645SLuigi Rizzo #define	HAVE_PROTO	0x0001
97199e5e645SLuigi Rizzo #define	HAVE_SRCIP	0x0002
97299e5e645SLuigi Rizzo #define	HAVE_DSTIP	0x0004
9735b41efddSMaxim Konovalov #define	HAVE_PROTO4	0x0008
9745b41efddSMaxim Konovalov #define	HAVE_PROTO6	0x0010
975f68f58e5SLuigi Rizzo #define	HAVE_IP		0x0100
976e706181bSLuigi Rizzo #define	HAVE_OPTIONS	0x8000
9779758b77fSLuigi Rizzo 
9789758b77fSLuigi Rizzo static void
979daa9733aSLuigi Rizzo show_prerequisites(int *flags, int want, int cmd __unused)
9809758b77fSLuigi Rizzo {
981db7c5224SLuigi Rizzo 	if (co.comment_only)
982ac6cec51SLuigi Rizzo 		return;
983e706181bSLuigi Rizzo 	if ( (*flags & HAVE_IP) == HAVE_IP)
984e706181bSLuigi Rizzo 		*flags |= HAVE_OPTIONS;
98599e5e645SLuigi Rizzo 
986e706181bSLuigi Rizzo 	if ( !(*flags & HAVE_OPTIONS)) {
987daa9733aSLuigi Rizzo 		if ( !(*flags & HAVE_PROTO) && (want & HAVE_PROTO)) {
98857cd6d26SMax Laier 			if ( (*flags & HAVE_PROTO4))
98957cd6d26SMax Laier 				printf(" ip4");
99057cd6d26SMax Laier 			else if ( (*flags & HAVE_PROTO6))
99157cd6d26SMax Laier 				printf(" ip6");
99257cd6d26SMax Laier 			else
993e706181bSLuigi Rizzo 				printf(" ip");
994daa9733aSLuigi Rizzo 		}
9959758b77fSLuigi Rizzo 		if ( !(*flags & HAVE_SRCIP) && (want & HAVE_SRCIP))
9969758b77fSLuigi Rizzo 			printf(" from any");
9979758b77fSLuigi Rizzo 		if ( !(*flags & HAVE_DSTIP) && (want & HAVE_DSTIP))
9989758b77fSLuigi Rizzo 			printf(" to any");
999e706181bSLuigi Rizzo 	}
10009758b77fSLuigi Rizzo 	*flags |= want;
10019758b77fSLuigi Rizzo }
10029758b77fSLuigi Rizzo 
10039758b77fSLuigi Rizzo static void
100445f61351SMaxim Konovalov show_ipfw(struct ip_fw *rule, int pcwidth, int bcwidth)
10059758b77fSLuigi Rizzo {
10063d2209aeSGiorgos Keramidas 	static int twidth = 0;
10079758b77fSLuigi Rizzo 	int l;
10086a7d5cb6SOleg Bulyzhin 	ipfw_insn *cmd, *tagptr = NULL;
1009daa9733aSLuigi Rizzo 	const char *comment = NULL;	/* ptr to comment if we have one */
10109758b77fSLuigi Rizzo 	int proto = 0;		/* default */
10119758b77fSLuigi Rizzo 	int flags = 0;	/* prerequisites */
10129758b77fSLuigi Rizzo 	ipfw_insn_log *logptr = NULL; /* set if we find an O_LOG */
1013974dfe30SBrian Feldman 	ipfw_insn_altq *altqptr = NULL; /* set if we find an O_ALTQ */
10149758b77fSLuigi Rizzo 	int or_block = 0;	/* we are in an or block */
1015571f8c1bSLuigi Rizzo 	uint32_t set_disable;
10169758b77fSLuigi Rizzo 
1017330462a3SBernd Walter 	bcopy(&rule->next_rule, &set_disable, sizeof(set_disable));
101843405724SLuigi Rizzo 
101943405724SLuigi Rizzo 	if (set_disable & (1 << rule->set)) { /* disabled */
1020db7c5224SLuigi Rizzo 		if (!co.show_sets)
102143405724SLuigi Rizzo 			return;
102243405724SLuigi Rizzo 		else
102343405724SLuigi Rizzo 			printf("# DISABLED ");
102443405724SLuigi Rizzo 	}
10259758b77fSLuigi Rizzo 	printf("%05u ", rule->rulenum);
10269758b77fSLuigi Rizzo 
102737133ba7SLuigi Rizzo 	if (pcwidth > 0 || bcwidth > 0) {
102837133ba7SLuigi Rizzo 		pr_u64(&rule->pcnt, pcwidth);
102937133ba7SLuigi Rizzo 		pr_u64(&rule->bcnt, bcwidth);
103037133ba7SLuigi Rizzo 	}
10319758b77fSLuigi Rizzo 
1032db7c5224SLuigi Rizzo 	if (co.do_time == 2)
10331b43a426SLuigi Rizzo 		printf("%10u ", rule->timestamp);
1034db7c5224SLuigi Rizzo 	else if (co.do_time == 1) {
10359758b77fSLuigi Rizzo 		char timestr[30];
10363d2209aeSGiorgos Keramidas 		time_t t = (time_t)0;
10373d2209aeSGiorgos Keramidas 
10383d2209aeSGiorgos Keramidas 		if (twidth == 0) {
10393d2209aeSGiorgos Keramidas 			strcpy(timestr, ctime(&t));
10403d2209aeSGiorgos Keramidas 			*strchr(timestr, '\n') = '\0';
10413d2209aeSGiorgos Keramidas 			twidth = strlen(timestr);
10423d2209aeSGiorgos Keramidas 		}
10433d2209aeSGiorgos Keramidas 		if (rule->timestamp) {
10443d2209aeSGiorgos Keramidas 			t = _long_to_time(rule->timestamp);
10459758b77fSLuigi Rizzo 
10469758b77fSLuigi Rizzo 			strcpy(timestr, ctime(&t));
10479758b77fSLuigi Rizzo 			*strchr(timestr, '\n') = '\0';
10489758b77fSLuigi Rizzo 			printf("%s ", timestr);
10499758b77fSLuigi Rizzo 		} else {
10503d2209aeSGiorgos Keramidas 			printf("%*s", twidth, " ");
10519758b77fSLuigi Rizzo 		}
10529758b77fSLuigi Rizzo 	}
10539758b77fSLuigi Rizzo 
1054db7c5224SLuigi Rizzo 	if (co.show_sets)
105543405724SLuigi Rizzo 		printf("set %d ", rule->set);
105643405724SLuigi Rizzo 
10579758b77fSLuigi Rizzo 	/*
105812b5dc6aSLuigi Rizzo 	 * print the optional "match probability"
105912b5dc6aSLuigi Rizzo 	 */
106012b5dc6aSLuigi Rizzo 	if (rule->cmd_len > 0) {
106112b5dc6aSLuigi Rizzo 		cmd = rule->cmd ;
106212b5dc6aSLuigi Rizzo 		if (cmd->opcode == O_PROB) {
106312b5dc6aSLuigi Rizzo 			ipfw_insn_u32 *p = (ipfw_insn_u32 *)cmd;
106412b5dc6aSLuigi Rizzo 			double d = 1.0 * p->d[0];
106512b5dc6aSLuigi Rizzo 
106612b5dc6aSLuigi Rizzo 			d = (d / 0x7fffffff);
106712b5dc6aSLuigi Rizzo 			printf("prob %f ", d);
106812b5dc6aSLuigi Rizzo 		}
106912b5dc6aSLuigi Rizzo 	}
107012b5dc6aSLuigi Rizzo 
107112b5dc6aSLuigi Rizzo 	/*
10729758b77fSLuigi Rizzo 	 * first print actions
10739758b77fSLuigi Rizzo 	 */
10749758b77fSLuigi Rizzo 	for (l = rule->cmd_len - rule->act_ofs, cmd = ACTION_PTR(rule);
10759758b77fSLuigi Rizzo 			l > 0 ; l -= F_LEN(cmd), cmd += F_LEN(cmd)) {
10769758b77fSLuigi Rizzo 		switch(cmd->opcode) {
10779758b77fSLuigi Rizzo 		case O_CHECK_STATE:
10789758b77fSLuigi Rizzo 			printf("check-state");
1079f68f58e5SLuigi Rizzo 			/* avoid printing anything else */
1080f68f58e5SLuigi Rizzo 			flags = HAVE_PROTO | HAVE_SRCIP |
1081f68f58e5SLuigi Rizzo 				HAVE_DSTIP | HAVE_IP;
10829758b77fSLuigi Rizzo 			break;
10839758b77fSLuigi Rizzo 
10849758b77fSLuigi Rizzo 		case O_ACCEPT:
10859758b77fSLuigi Rizzo 			printf("allow");
10869758b77fSLuigi Rizzo 			break;
10879758b77fSLuigi Rizzo 
10889758b77fSLuigi Rizzo 		case O_COUNT:
10899758b77fSLuigi Rizzo 			printf("count");
10909758b77fSLuigi Rizzo 			break;
10919758b77fSLuigi Rizzo 
10929758b77fSLuigi Rizzo 		case O_DENY:
10939758b77fSLuigi Rizzo 			printf("deny");
10949758b77fSLuigi Rizzo 			break;
10959758b77fSLuigi Rizzo 
10965e43aef8SLuigi Rizzo 		case O_REJECT:
10975e43aef8SLuigi Rizzo 			if (cmd->arg1 == ICMP_REJECT_RST)
10985e43aef8SLuigi Rizzo 				printf("reset");
10995e43aef8SLuigi Rizzo 			else if (cmd->arg1 == ICMP_UNREACH_HOST)
11005e43aef8SLuigi Rizzo 				printf("reject");
11015e43aef8SLuigi Rizzo 			else
11025e43aef8SLuigi Rizzo 				print_reject_code(cmd->arg1);
11035e43aef8SLuigi Rizzo 			break;
11045e43aef8SLuigi Rizzo 
11059066356bSBjoern A. Zeeb 		case O_UNREACH6:
11069066356bSBjoern A. Zeeb 			if (cmd->arg1 == ICMP6_UNREACH_RST)
11079066356bSBjoern A. Zeeb 				printf("reset6");
11089066356bSBjoern A. Zeeb 			else
11099066356bSBjoern A. Zeeb 				print_unreach6_code(cmd->arg1);
11109066356bSBjoern A. Zeeb 			break;
11119066356bSBjoern A. Zeeb 
1112254c4725SOleg Bulyzhin 		case O_SKIPTO:
1113254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("skipto ", cmd->arg1);
111440b1ae9eSGleb Smirnoff 			break;
111540b1ae9eSGleb Smirnoff 
11169758b77fSLuigi Rizzo 		case O_PIPE:
1117254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("pipe ", cmd->arg1);
1118254c4725SOleg Bulyzhin 			break;
1119254c4725SOleg Bulyzhin 
11209758b77fSLuigi Rizzo 		case O_QUEUE:
1121254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("queue ", cmd->arg1);
1122254c4725SOleg Bulyzhin 			break;
1123254c4725SOleg Bulyzhin 
11249758b77fSLuigi Rizzo 		case O_DIVERT:
1125254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("divert ", cmd->arg1);
1126254c4725SOleg Bulyzhin 			break;
1127254c4725SOleg Bulyzhin 
11289758b77fSLuigi Rizzo 		case O_TEE:
1129254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("tee ", cmd->arg1);
1130254c4725SOleg Bulyzhin 			break;
1131254c4725SOleg Bulyzhin 
1132670742a1SGleb Smirnoff 		case O_NETGRAPH:
1133254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("netgraph ", cmd->arg1);
1134254c4725SOleg Bulyzhin 			break;
1135254c4725SOleg Bulyzhin 
1136670742a1SGleb Smirnoff 		case O_NGTEE:
1137254c4725SOleg Bulyzhin 			PRINT_UINT_ARG("ngtee ", cmd->arg1);
1138254c4725SOleg Bulyzhin 			break;
1139670742a1SGleb Smirnoff 
11409758b77fSLuigi Rizzo 		case O_FORWARD_IP:
11419758b77fSLuigi Rizzo 		    {
11429758b77fSLuigi Rizzo 			ipfw_insn_sa *s = (ipfw_insn_sa *)cmd;
11439758b77fSLuigi Rizzo 
1144c487be96SJulian Elischer 			if (s->sa.sin_addr.s_addr == INADDR_ANY) {
1145c487be96SJulian Elischer 				printf("fwd tablearg");
1146c487be96SJulian Elischer 			} else {
11479758b77fSLuigi Rizzo 				printf("fwd %s", inet_ntoa(s->sa.sin_addr));
1148c487be96SJulian Elischer 			}
11499758b77fSLuigi Rizzo 			if (s->sa.sin_port)
11504f531a53SLuigi Rizzo 				printf(",%d", s->sa.sin_port);
11519758b77fSLuigi Rizzo 		    }
11529758b77fSLuigi Rizzo 			break;
11539758b77fSLuigi Rizzo 
11548a006adbSBjoern A. Zeeb 		case O_FORWARD_IP6:
11558a006adbSBjoern A. Zeeb 		    {
11568a006adbSBjoern A. Zeeb 			char buf[4 + INET6_ADDRSTRLEN + 1];
11578a006adbSBjoern A. Zeeb 			ipfw_insn_sa6 *s = (ipfw_insn_sa6 *)cmd;
11588a006adbSBjoern A. Zeeb 
11598a006adbSBjoern A. Zeeb 			printf("fwd %s", inet_ntop(AF_INET6, &s->sa.sin6_addr,
11608a006adbSBjoern A. Zeeb 			    buf, sizeof(buf)));
11618a006adbSBjoern A. Zeeb 			if (s->sa.sin6_port)
11628a006adbSBjoern A. Zeeb 				printf(",%d", s->sa.sin6_port);
11638a006adbSBjoern A. Zeeb 		    }
11648a006adbSBjoern A. Zeeb 			break;
11658a006adbSBjoern A. Zeeb 
11669758b77fSLuigi Rizzo 		case O_LOG: /* O_LOG is printed last */
11679758b77fSLuigi Rizzo 			logptr = (ipfw_insn_log *)cmd;
11689758b77fSLuigi Rizzo 			break;
11699758b77fSLuigi Rizzo 
1170974dfe30SBrian Feldman 		case O_ALTQ: /* O_ALTQ is printed after O_LOG */
1171974dfe30SBrian Feldman 			altqptr = (ipfw_insn_altq *)cmd;
1172974dfe30SBrian Feldman 			break;
1173974dfe30SBrian Feldman 
11746a7d5cb6SOleg Bulyzhin 		case O_TAG:
11756a7d5cb6SOleg Bulyzhin 			tagptr = cmd;
11766a7d5cb6SOleg Bulyzhin 			break;
11776a7d5cb6SOleg Bulyzhin 
1178ff2f6fe8SPaolo Pisati 		case O_NAT:
11791875bbfeSAndrey V. Elsukov 			if (cmd->arg1 != 0)
1180f94a7fc0SPaolo Pisati 				PRINT_UINT_ARG("nat ", cmd->arg1);
11811875bbfeSAndrey V. Elsukov 			else
11821875bbfeSAndrey V. Elsukov 				printf("nat global");
1183ff2f6fe8SPaolo Pisati 			break;
1184ff2f6fe8SPaolo Pisati 
11858b07e49aSJulian Elischer 		case O_SETFIB:
11868b07e49aSJulian Elischer 			PRINT_UINT_ARG("setfib ", cmd->arg1);
11878b07e49aSJulian Elischer  			break;
11888b07e49aSJulian Elischer 
1189eb2e4119SPaolo Pisati 		case O_REASS:
1190eb2e4119SPaolo Pisati 			printf("reass");
1191eb2e4119SPaolo Pisati 			break;
1192eb2e4119SPaolo Pisati 
11939527ec6eSAndrey V. Elsukov 		case O_CALLRETURN:
11949527ec6eSAndrey V. Elsukov 			if (cmd->len & F_NOT)
11959527ec6eSAndrey V. Elsukov 				printf("return");
11969527ec6eSAndrey V. Elsukov 			else
11979527ec6eSAndrey V. Elsukov 				PRINT_UINT_ARG("call ", cmd->arg1);
11989527ec6eSAndrey V. Elsukov 			break;
11999527ec6eSAndrey V. Elsukov 
12009758b77fSLuigi Rizzo 		default:
12019758b77fSLuigi Rizzo 			printf("** unrecognized action %d len %d ",
12029758b77fSLuigi Rizzo 				cmd->opcode, cmd->len);
12039758b77fSLuigi Rizzo 		}
12049758b77fSLuigi Rizzo 	}
12059758b77fSLuigi Rizzo 	if (logptr) {
12069758b77fSLuigi Rizzo 		if (logptr->max_log > 0)
12079758b77fSLuigi Rizzo 			printf(" log logamount %d", logptr->max_log);
12089758b77fSLuigi Rizzo 		else
12099758b77fSLuigi Rizzo 			printf(" log");
12109758b77fSLuigi Rizzo 	}
1211cc4d3c30SLuigi Rizzo #ifndef NO_ALTQ
1212974dfe30SBrian Feldman 	if (altqptr) {
121323c608c8SLuigi Rizzo 		print_altq_cmd(altqptr);
1214974dfe30SBrian Feldman 	}
1215cc4d3c30SLuigi Rizzo #endif
12166a7d5cb6SOleg Bulyzhin 	if (tagptr) {
12176a7d5cb6SOleg Bulyzhin 		if (tagptr->len & F_NOT)
1218254c4725SOleg Bulyzhin 			PRINT_UINT_ARG(" untag ", tagptr->arg1);
12196a7d5cb6SOleg Bulyzhin 		else
1220254c4725SOleg Bulyzhin 			PRINT_UINT_ARG(" tag ", tagptr->arg1);
12216a7d5cb6SOleg Bulyzhin 	}
1222e706181bSLuigi Rizzo 
12239758b77fSLuigi Rizzo 	/*
1224e706181bSLuigi Rizzo 	 * then print the body.
12259758b77fSLuigi Rizzo 	 */
122657cd6d26SMax Laier 	for (l = rule->act_ofs, cmd = rule->cmd ;
122757cd6d26SMax Laier 			l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) {
122857cd6d26SMax Laier 		if ((cmd->len & F_OR) || (cmd->len & F_NOT))
122957cd6d26SMax Laier 			continue;
123057cd6d26SMax Laier 		if (cmd->opcode == O_IP4) {
123157cd6d26SMax Laier 			flags |= HAVE_PROTO4;
123257cd6d26SMax Laier 			break;
123357cd6d26SMax Laier 		} else if (cmd->opcode == O_IP6) {
123457cd6d26SMax Laier 			flags |= HAVE_PROTO6;
123557cd6d26SMax Laier 			break;
123657cd6d26SMax Laier 		}
123757cd6d26SMax Laier 	}
1238e706181bSLuigi Rizzo 	if (rule->_pad & 1) {	/* empty rules before options */
1239db7c5224SLuigi Rizzo 		if (!co.do_compact) {
124057cd6d26SMax Laier 			show_prerequisites(&flags, HAVE_PROTO, 0);
124157cd6d26SMax Laier 			printf(" from any to any");
124257cd6d26SMax Laier 		}
1243f68f58e5SLuigi Rizzo 		flags |= HAVE_IP | HAVE_OPTIONS | HAVE_PROTO |
1244f68f58e5SLuigi Rizzo 			 HAVE_SRCIP | HAVE_DSTIP;
1245e706181bSLuigi Rizzo 	}
1246e706181bSLuigi Rizzo 
1247db7c5224SLuigi Rizzo 	if (co.comment_only)
1248ac6cec51SLuigi Rizzo 		comment = "...";
1249ac6cec51SLuigi Rizzo 
12509758b77fSLuigi Rizzo 	for (l = rule->act_ofs, cmd = rule->cmd ;
12519758b77fSLuigi Rizzo 			l > 0 ; l -= F_LEN(cmd) , cmd += F_LEN(cmd)) {
12525e43aef8SLuigi Rizzo 		/* useful alias */
12535e43aef8SLuigi Rizzo 		ipfw_insn_u32 *cmd32 = (ipfw_insn_u32 *)cmd;
12549758b77fSLuigi Rizzo 
1255db7c5224SLuigi Rizzo 		if (co.comment_only) {
1256ac6cec51SLuigi Rizzo 			if (cmd->opcode != O_NOP)
1257ac6cec51SLuigi Rizzo 				continue;
1258ac6cec51SLuigi Rizzo 			printf(" // %s\n", (char *)(cmd + 1));
1259ac6cec51SLuigi Rizzo 			return;
1260ac6cec51SLuigi Rizzo 		}
1261ac6cec51SLuigi Rizzo 
1262e706181bSLuigi Rizzo 		show_prerequisites(&flags, 0, cmd->opcode);
1263e706181bSLuigi Rizzo 
12649758b77fSLuigi Rizzo 		switch(cmd->opcode) {
126512b5dc6aSLuigi Rizzo 		case O_PROB:
126612b5dc6aSLuigi Rizzo 			break;	/* done already */
126712b5dc6aSLuigi Rizzo 
12689758b77fSLuigi Rizzo 		case O_PROBE_STATE:
12699758b77fSLuigi Rizzo 			break; /* no need to print anything here */
12709758b77fSLuigi Rizzo 
12719758b77fSLuigi Rizzo 		case O_IP_SRC:
1272cd8b5ae0SRuslan Ermilov 		case O_IP_SRC_LOOKUP:
12739758b77fSLuigi Rizzo 		case O_IP_SRC_MASK:
12749758b77fSLuigi Rizzo 		case O_IP_SRC_ME:
12759758b77fSLuigi Rizzo 		case O_IP_SRC_SET:
1276e706181bSLuigi Rizzo 			show_prerequisites(&flags, HAVE_PROTO, 0);
12779758b77fSLuigi Rizzo 			if (!(flags & HAVE_SRCIP))
12789758b77fSLuigi Rizzo 				printf(" from");
12799758b77fSLuigi Rizzo 			if ((cmd->len & F_OR) && !or_block)
12809758b77fSLuigi Rizzo 				printf(" {");
1281e706181bSLuigi Rizzo 			print_ip((ipfw_insn_ip *)cmd,
1282e706181bSLuigi Rizzo 				(flags & HAVE_OPTIONS) ? " src-ip" : "");
12839758b77fSLuigi Rizzo 			flags |= HAVE_SRCIP;
12849758b77fSLuigi Rizzo 			break;
12859758b77fSLuigi Rizzo 
12869758b77fSLuigi Rizzo 		case O_IP_DST:
1287cd8b5ae0SRuslan Ermilov 		case O_IP_DST_LOOKUP:
12889758b77fSLuigi Rizzo 		case O_IP_DST_MASK:
12899758b77fSLuigi Rizzo 		case O_IP_DST_ME:
12909758b77fSLuigi Rizzo 		case O_IP_DST_SET:
1291e706181bSLuigi Rizzo 			show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0);
12929758b77fSLuigi Rizzo 			if (!(flags & HAVE_DSTIP))
12939758b77fSLuigi Rizzo 				printf(" to");
12949758b77fSLuigi Rizzo 			if ((cmd->len & F_OR) && !or_block)
12959758b77fSLuigi Rizzo 				printf(" {");
1296e706181bSLuigi Rizzo 			print_ip((ipfw_insn_ip *)cmd,
1297e706181bSLuigi Rizzo 				(flags & HAVE_OPTIONS) ? " dst-ip" : "");
12989758b77fSLuigi Rizzo 			flags |= HAVE_DSTIP;
12999758b77fSLuigi Rizzo 			break;
13009758b77fSLuigi Rizzo 
13018195404bSBrooks Davis 		case O_IP6_SRC:
13028195404bSBrooks Davis 		case O_IP6_SRC_MASK:
13038195404bSBrooks Davis 		case O_IP6_SRC_ME:
1304b730879fSMax Laier 			show_prerequisites(&flags, HAVE_PROTO, 0);
13058195404bSBrooks Davis 			if (!(flags & HAVE_SRCIP))
13068195404bSBrooks Davis 				printf(" from");
13078195404bSBrooks Davis 			if ((cmd->len & F_OR) && !or_block)
13088195404bSBrooks Davis 				printf(" {");
13098195404bSBrooks Davis 			print_ip6((ipfw_insn_ip6 *)cmd,
13108195404bSBrooks Davis 			    (flags & HAVE_OPTIONS) ? " src-ip6" : "");
13118195404bSBrooks Davis 			flags |= HAVE_SRCIP | HAVE_PROTO;
13128195404bSBrooks Davis 			break;
13138195404bSBrooks Davis 
13148195404bSBrooks Davis 		case O_IP6_DST:
13158195404bSBrooks Davis 		case O_IP6_DST_MASK:
13168195404bSBrooks Davis 		case O_IP6_DST_ME:
13178195404bSBrooks Davis 			show_prerequisites(&flags, HAVE_PROTO|HAVE_SRCIP, 0);
13188195404bSBrooks Davis 			if (!(flags & HAVE_DSTIP))
13198195404bSBrooks Davis 				printf(" to");
13208195404bSBrooks Davis 			if ((cmd->len & F_OR) && !or_block)
13218195404bSBrooks Davis 				printf(" {");
13228195404bSBrooks Davis 			print_ip6((ipfw_insn_ip6 *)cmd,
13238195404bSBrooks Davis 			    (flags & HAVE_OPTIONS) ? " dst-ip6" : "");
13248195404bSBrooks Davis 			flags |= HAVE_DSTIP;
13258195404bSBrooks Davis 			break;
13268195404bSBrooks Davis 
13278195404bSBrooks Davis 		case O_FLOW6ID:
13288195404bSBrooks Davis 		print_flow6id( (ipfw_insn_u32 *) cmd );
13298195404bSBrooks Davis 		flags |= HAVE_OPTIONS;
13308195404bSBrooks Davis 		break;
13318195404bSBrooks Davis 
13329758b77fSLuigi Rizzo 		case O_IP_DSTPORT:
1333f68f58e5SLuigi Rizzo 			show_prerequisites(&flags,
1334f68f58e5SLuigi Rizzo 				HAVE_PROTO | HAVE_SRCIP |
1335f68f58e5SLuigi Rizzo 				HAVE_DSTIP | HAVE_IP, 0);
13369758b77fSLuigi Rizzo 		case O_IP_SRCPORT:
1337e89359c2SJohn Baldwin 			if (flags & HAVE_DSTIP)
1338e89359c2SJohn Baldwin 				flags |= HAVE_IP;
1339f68f58e5SLuigi Rizzo 			show_prerequisites(&flags,
1340f68f58e5SLuigi Rizzo 				HAVE_PROTO | HAVE_SRCIP, 0);
13418ed2d749SLuigi Rizzo 			if ((cmd->len & F_OR) && !or_block)
13428ed2d749SLuigi Rizzo 				printf(" {");
1343087aa087SMaxim Konovalov 			if (cmd->len & F_NOT)
1344087aa087SMaxim Konovalov 				printf(" not");
1345e706181bSLuigi Rizzo 			print_newports((ipfw_insn_u16 *)cmd, proto,
1346e706181bSLuigi Rizzo 				(flags & HAVE_OPTIONS) ? cmd->opcode : 0);
13479758b77fSLuigi Rizzo 			break;
13489758b77fSLuigi Rizzo 
13499758b77fSLuigi Rizzo 		case O_PROTO: {
13508195404bSBrooks Davis 			struct protoent *pe = NULL;
13519758b77fSLuigi Rizzo 
13529758b77fSLuigi Rizzo 			if ((cmd->len & F_OR) && !or_block)
13539758b77fSLuigi Rizzo 				printf(" {");
13549758b77fSLuigi Rizzo 			if (cmd->len & F_NOT)
13559758b77fSLuigi Rizzo 				printf(" not");
13569758b77fSLuigi Rizzo 			proto = cmd->arg1;
1357d360073bSBrooks Davis 			pe = getprotobynumber(cmd->arg1);
135857cd6d26SMax Laier 			if ((flags & (HAVE_PROTO4 | HAVE_PROTO6)) &&
135957cd6d26SMax Laier 			    !(flags & HAVE_PROTO))
136057cd6d26SMax Laier 				show_prerequisites(&flags,
1361f68f58e5SLuigi Rizzo 				    HAVE_PROTO | HAVE_IP | HAVE_SRCIP |
1362f68f58e5SLuigi Rizzo 				    HAVE_DSTIP | HAVE_OPTIONS, 0);
1363e706181bSLuigi Rizzo 			if (flags & HAVE_OPTIONS)
1364e706181bSLuigi Rizzo 				printf(" proto");
13659758b77fSLuigi Rizzo 			if (pe)
13669758b77fSLuigi Rizzo 				printf(" %s", pe->p_name);
13679758b77fSLuigi Rizzo 			else
13689758b77fSLuigi Rizzo 				printf(" %u", cmd->arg1);
13699758b77fSLuigi Rizzo 			}
13709758b77fSLuigi Rizzo 			flags |= HAVE_PROTO;
13719758b77fSLuigi Rizzo 			break;
13729758b77fSLuigi Rizzo 
13739758b77fSLuigi Rizzo 		default: /*options ... */
137457cd6d26SMax Laier 			if (!(cmd->len & (F_OR|F_NOT)))
137557cd6d26SMax Laier 				if (((cmd->opcode == O_IP6) &&
137657cd6d26SMax Laier 				    (flags & HAVE_PROTO6)) ||
137757cd6d26SMax Laier 				    ((cmd->opcode == O_IP4) &&
137857cd6d26SMax Laier 				    (flags & HAVE_PROTO4)))
137957cd6d26SMax Laier 					break;
1380f68f58e5SLuigi Rizzo 			show_prerequisites(&flags, HAVE_PROTO | HAVE_SRCIP |
1381f68f58e5SLuigi Rizzo 				    HAVE_DSTIP | HAVE_IP | HAVE_OPTIONS, 0);
13829758b77fSLuigi Rizzo 			if ((cmd->len & F_OR) && !or_block)
13839758b77fSLuigi Rizzo 				printf(" {");
13849758b77fSLuigi Rizzo 			if (cmd->len & F_NOT && cmd->opcode != O_IN)
13859758b77fSLuigi Rizzo 				printf(" not");
13869758b77fSLuigi Rizzo 			switch(cmd->opcode) {
13875b41efddSMaxim Konovalov 			case O_MACADDR2: {
13885b41efddSMaxim Konovalov 				ipfw_insn_mac *m = (ipfw_insn_mac *)cmd;
13895b41efddSMaxim Konovalov 
13905b41efddSMaxim Konovalov 				printf(" MAC");
13915b41efddSMaxim Konovalov 				print_mac(m->addr, m->mask);
13925b41efddSMaxim Konovalov 				print_mac(m->addr + 6, m->mask + 6);
13935b41efddSMaxim Konovalov 				}
13945b41efddSMaxim Konovalov 				break;
13955b41efddSMaxim Konovalov 
13965b41efddSMaxim Konovalov 			case O_MAC_TYPE:
13975b41efddSMaxim Konovalov 				print_newports((ipfw_insn_u16 *)cmd,
13985b41efddSMaxim Konovalov 						IPPROTO_ETHERTYPE, cmd->opcode);
13995b41efddSMaxim Konovalov 				break;
14005b41efddSMaxim Konovalov 
14015b41efddSMaxim Konovalov 
14029758b77fSLuigi Rizzo 			case O_FRAG:
14039758b77fSLuigi Rizzo 				printf(" frag");
14049758b77fSLuigi Rizzo 				break;
14059758b77fSLuigi Rizzo 
14068b07e49aSJulian Elischer 			case O_FIB:
14078b07e49aSJulian Elischer 				printf(" fib %u", cmd->arg1 );
14088b07e49aSJulian Elischer 				break;
1409ae99fd0eSLuigi Rizzo 			case O_SOCKARG:
1410ae99fd0eSLuigi Rizzo 				printf(" sockarg");
1411ae99fd0eSLuigi Rizzo 				break;
14128b07e49aSJulian Elischer 
14139758b77fSLuigi Rizzo 			case O_IN:
14149758b77fSLuigi Rizzo 				printf(cmd->len & F_NOT ? " out" : " in");
14159758b77fSLuigi Rizzo 				break;
14169758b77fSLuigi Rizzo 
14176daf7ebdSBrian Feldman 			case O_DIVERTED:
14186daf7ebdSBrian Feldman 				switch (cmd->arg1) {
14196daf7ebdSBrian Feldman 				case 3:
14206daf7ebdSBrian Feldman 					printf(" diverted");
14216daf7ebdSBrian Feldman 					break;
14226daf7ebdSBrian Feldman 				case 1:
14236daf7ebdSBrian Feldman 					printf(" diverted-loopback");
14246daf7ebdSBrian Feldman 					break;
14256daf7ebdSBrian Feldman 				case 2:
14266daf7ebdSBrian Feldman 					printf(" diverted-output");
14276daf7ebdSBrian Feldman 					break;
14286daf7ebdSBrian Feldman 				default:
14296daf7ebdSBrian Feldman 					printf(" diverted-?<%u>", cmd->arg1);
14306daf7ebdSBrian Feldman 					break;
14316daf7ebdSBrian Feldman 				}
14326daf7ebdSBrian Feldman 				break;
14336daf7ebdSBrian Feldman 
14349758b77fSLuigi Rizzo 			case O_LAYER2:
14359758b77fSLuigi Rizzo 				printf(" layer2");
14369758b77fSLuigi Rizzo 				break;
14379758b77fSLuigi Rizzo 			case O_XMIT:
14389758b77fSLuigi Rizzo 			case O_RECV:
1439bd528823SGleb Smirnoff 			case O_VIA:
1440bd528823SGleb Smirnoff 			    {
144162ff38aeSLuigi Rizzo 				char const *s;
14429758b77fSLuigi Rizzo 				ipfw_insn_if *cmdif = (ipfw_insn_if *)cmd;
14439758b77fSLuigi Rizzo 
14449758b77fSLuigi Rizzo 				if (cmd->opcode == O_XMIT)
14459758b77fSLuigi Rizzo 					s = "xmit";
14469758b77fSLuigi Rizzo 				else if (cmd->opcode == O_RECV)
14479758b77fSLuigi Rizzo 					s = "recv";
144862ff38aeSLuigi Rizzo 				else /* if (cmd->opcode == O_VIA) */
14499758b77fSLuigi Rizzo 					s = "via";
14509758b77fSLuigi Rizzo 				if (cmdif->name[0] == '\0')
14515e43aef8SLuigi Rizzo 					printf(" %s %s", s,
14525e43aef8SLuigi Rizzo 					    inet_ntoa(cmdif->p.ip));
1453*f8bee51aSAlexander V. Chernikov 				else if (cmdif->name[0] == '\1') /* interface table */
1454*f8bee51aSAlexander V. Chernikov 					printf(" %s table(%d)", s, cmdif->p.glob);
1455bd528823SGleb Smirnoff 				else
14569bf40edeSBrooks Davis 					printf(" %s %s", s, cmdif->name);
14579758b77fSLuigi Rizzo 
1458bd528823SGleb Smirnoff 				break;
1459bd528823SGleb Smirnoff 			    }
14609758b77fSLuigi Rizzo 			case O_IPID:
146144c884e1SLuigi Rizzo 				if (F_LEN(cmd) == 1)
14629758b77fSLuigi Rizzo 				    printf(" ipid %u", cmd->arg1 );
146344c884e1SLuigi Rizzo 				else
146444c884e1SLuigi Rizzo 				    print_newports((ipfw_insn_u16 *)cmd, 0,
146544c884e1SLuigi Rizzo 					O_IPID);
14669758b77fSLuigi Rizzo 				break;
14679758b77fSLuigi Rizzo 
14689758b77fSLuigi Rizzo 			case O_IPTTL:
146944c884e1SLuigi Rizzo 				if (F_LEN(cmd) == 1)
14709758b77fSLuigi Rizzo 				    printf(" ipttl %u", cmd->arg1 );
147144c884e1SLuigi Rizzo 				else
147244c884e1SLuigi Rizzo 				    print_newports((ipfw_insn_u16 *)cmd, 0,
147344c884e1SLuigi Rizzo 					O_IPTTL);
14749758b77fSLuigi Rizzo 				break;
14759758b77fSLuigi Rizzo 
14769758b77fSLuigi Rizzo 			case O_IPVER:
14779758b77fSLuigi Rizzo 				printf(" ipver %u", cmd->arg1 );
14789758b77fSLuigi Rizzo 				break;
14799758b77fSLuigi Rizzo 
14805e43aef8SLuigi Rizzo 			case O_IPPRECEDENCE:
14815e43aef8SLuigi Rizzo 				printf(" ipprecedence %u", (cmd->arg1) >> 5 );
14825e43aef8SLuigi Rizzo 				break;
14835e43aef8SLuigi Rizzo 
14849758b77fSLuigi Rizzo 			case O_IPLEN:
148544c884e1SLuigi Rizzo 				if (F_LEN(cmd) == 1)
14869758b77fSLuigi Rizzo 				    printf(" iplen %u", cmd->arg1 );
148744c884e1SLuigi Rizzo 				else
148844c884e1SLuigi Rizzo 				    print_newports((ipfw_insn_u16 *)cmd, 0,
148944c884e1SLuigi Rizzo 					O_IPLEN);
14909758b77fSLuigi Rizzo 				break;
14919758b77fSLuigi Rizzo 
149252bc23abSLuigi Rizzo 			case O_IPOPT:
14939758b77fSLuigi Rizzo 				print_flags("ipoptions", cmd, f_ipopts);
14949758b77fSLuigi Rizzo 				break;
14959758b77fSLuigi Rizzo 
14965e43aef8SLuigi Rizzo 			case O_IPTOS:
14975e43aef8SLuigi Rizzo 				print_flags("iptos", cmd, f_iptos);
14985e43aef8SLuigi Rizzo 				break;
14995e43aef8SLuigi Rizzo 
15005e43aef8SLuigi Rizzo 			case O_ICMPTYPE:
15015e43aef8SLuigi Rizzo 				print_icmptypes((ipfw_insn_u32 *)cmd);
15025e43aef8SLuigi Rizzo 				break;
15035e43aef8SLuigi Rizzo 
15049758b77fSLuigi Rizzo 			case O_ESTAB:
15059758b77fSLuigi Rizzo 				printf(" established");
15069758b77fSLuigi Rizzo 				break;
15079758b77fSLuigi Rizzo 
1508c99ee9e0SBrian Feldman 			case O_TCPDATALEN:
1509c99ee9e0SBrian Feldman 				if (F_LEN(cmd) == 1)
1510c99ee9e0SBrian Feldman 				    printf(" tcpdatalen %u", cmd->arg1 );
1511c99ee9e0SBrian Feldman 				else
1512c99ee9e0SBrian Feldman 				    print_newports((ipfw_insn_u16 *)cmd, 0,
1513c99ee9e0SBrian Feldman 					O_TCPDATALEN);
1514c99ee9e0SBrian Feldman 				break;
1515c99ee9e0SBrian Feldman 
15169758b77fSLuigi Rizzo 			case O_TCPFLAGS:
15179758b77fSLuigi Rizzo 				print_flags("tcpflags", cmd, f_tcpflags);
15189758b77fSLuigi Rizzo 				break;
15199758b77fSLuigi Rizzo 
15209758b77fSLuigi Rizzo 			case O_TCPOPTS:
15219758b77fSLuigi Rizzo 				print_flags("tcpoptions", cmd, f_tcpopts);
15229758b77fSLuigi Rizzo 				break;
15239758b77fSLuigi Rizzo 
15249758b77fSLuigi Rizzo 			case O_TCPWIN:
152523ccd3d9SGleb Smirnoff 				if (F_LEN(cmd) == 1)
152623ccd3d9SGleb Smirnoff 				    printf(" tcpwin %u", cmd->arg1);
152723ccd3d9SGleb Smirnoff 				else
152823ccd3d9SGleb Smirnoff 				    print_newports((ipfw_insn_u16 *)cmd, 0,
152923ccd3d9SGleb Smirnoff 					O_TCPWIN);
15309758b77fSLuigi Rizzo 				break;
15319758b77fSLuigi Rizzo 
15329758b77fSLuigi Rizzo 			case O_TCPACK:
15339758b77fSLuigi Rizzo 				printf(" tcpack %d", ntohl(cmd32->d[0]));
15349758b77fSLuigi Rizzo 				break;
15359758b77fSLuigi Rizzo 
15369758b77fSLuigi Rizzo 			case O_TCPSEQ:
15379758b77fSLuigi Rizzo 				printf(" tcpseq %d", ntohl(cmd32->d[0]));
15389758b77fSLuigi Rizzo 				break;
15399758b77fSLuigi Rizzo 
15409758b77fSLuigi Rizzo 			case O_UID:
15419758b77fSLuigi Rizzo 			    {
15429758b77fSLuigi Rizzo 				struct passwd *pwd = getpwuid(cmd32->d[0]);
15439758b77fSLuigi Rizzo 
15449758b77fSLuigi Rizzo 				if (pwd)
15459758b77fSLuigi Rizzo 					printf(" uid %s", pwd->pw_name);
15469758b77fSLuigi Rizzo 				else
15479758b77fSLuigi Rizzo 					printf(" uid %u", cmd32->d[0]);
15489758b77fSLuigi Rizzo 			    }
15499758b77fSLuigi Rizzo 				break;
15509758b77fSLuigi Rizzo 
15519758b77fSLuigi Rizzo 			case O_GID:
15529758b77fSLuigi Rizzo 			    {
15539758b77fSLuigi Rizzo 				struct group *grp = getgrgid(cmd32->d[0]);
15549758b77fSLuigi Rizzo 
15559758b77fSLuigi Rizzo 				if (grp)
15569758b77fSLuigi Rizzo 					printf(" gid %s", grp->gr_name);
15579758b77fSLuigi Rizzo 				else
15589758b77fSLuigi Rizzo 					printf(" gid %u", cmd32->d[0]);
15599758b77fSLuigi Rizzo 			    }
15609758b77fSLuigi Rizzo 				break;
15619758b77fSLuigi Rizzo 
156231c88a30SChristian S.J. Peron 			case O_JAIL:
156331c88a30SChristian S.J. Peron 				printf(" jail %d", cmd32->d[0]);
156431c88a30SChristian S.J. Peron 				break;
156531c88a30SChristian S.J. Peron 
1566010dabb0SCrist J. Clark 			case O_VERREVPATH:
1567010dabb0SCrist J. Clark 				printf(" verrevpath");
1568010dabb0SCrist J. Clark 				break;
1569010dabb0SCrist J. Clark 
157022b5770bSAndre Oppermann 			case O_VERSRCREACH:
157122b5770bSAndre Oppermann 				printf(" versrcreach");
157222b5770bSAndre Oppermann 				break;
157322b5770bSAndre Oppermann 
15745f9541ecSAndre Oppermann 			case O_ANTISPOOF:
15755f9541ecSAndre Oppermann 				printf(" antispoof");
15765f9541ecSAndre Oppermann 				break;
15775f9541ecSAndre Oppermann 
1578c3e5b9f1SLuigi Rizzo 			case O_IPSEC:
1579c3e5b9f1SLuigi Rizzo 				printf(" ipsec");
1580c3e5b9f1SLuigi Rizzo 				break;
1581c3e5b9f1SLuigi Rizzo 
158262ff38aeSLuigi Rizzo 			case O_NOP:
1583bbc39c83SLuigi Rizzo 				comment = (char *)(cmd + 1);
158462ff38aeSLuigi Rizzo 				break;
158562ff38aeSLuigi Rizzo 
15869758b77fSLuigi Rizzo 			case O_KEEP_STATE:
15879758b77fSLuigi Rizzo 				printf(" keep-state");
15889758b77fSLuigi Rizzo 				break;
15899758b77fSLuigi Rizzo 
1590254c4725SOleg Bulyzhin 			case O_LIMIT: {
15919758b77fSLuigi Rizzo 				struct _s_x *p = limit_masks;
15929758b77fSLuigi Rizzo 				ipfw_insn_limit *c = (ipfw_insn_limit *)cmd;
1593571f8c1bSLuigi Rizzo 				uint8_t x = c->limit_mask;
159462ff38aeSLuigi Rizzo 				char const *comma = " ";
15959758b77fSLuigi Rizzo 
15969758b77fSLuigi Rizzo 				printf(" limit");
15979758b77fSLuigi Rizzo 				for (; p->x != 0 ; p++)
15980a7197a8SLuigi Rizzo 					if ((x & p->x) == p->x) {
15999758b77fSLuigi Rizzo 						x &= ~p->x;
16009758b77fSLuigi Rizzo 						printf("%s%s", comma, p->s);
16019758b77fSLuigi Rizzo 						comma = ",";
16029758b77fSLuigi Rizzo 					}
1603254c4725SOleg Bulyzhin 				PRINT_UINT_ARG(" ", c->conn_limit);
16049758b77fSLuigi Rizzo 				break;
1605254c4725SOleg Bulyzhin 			}
16069758b77fSLuigi Rizzo 
16078195404bSBrooks Davis 			case O_IP6:
160836c263ccSHajimu UMEMOTO 				printf(" ip6");
16098195404bSBrooks Davis 				break;
16108195404bSBrooks Davis 
161157cd6d26SMax Laier 			case O_IP4:
161236c263ccSHajimu UMEMOTO 				printf(" ip4");
161357cd6d26SMax Laier 				break;
161457cd6d26SMax Laier 
16158195404bSBrooks Davis 			case O_ICMP6TYPE:
16168195404bSBrooks Davis 				print_icmp6types((ipfw_insn_u32 *)cmd);
16178195404bSBrooks Davis 				break;
16188195404bSBrooks Davis 
16198195404bSBrooks Davis 			case O_EXT_HDR:
16208195404bSBrooks Davis 				print_ext6hdr( (ipfw_insn *) cmd );
16218195404bSBrooks Davis 				break;
16228195404bSBrooks Davis 
16236a7d5cb6SOleg Bulyzhin 			case O_TAGGED:
16246a7d5cb6SOleg Bulyzhin 				if (F_LEN(cmd) == 1)
1625254c4725SOleg Bulyzhin 					PRINT_UINT_ARG(" tagged ", cmd->arg1);
16266a7d5cb6SOleg Bulyzhin 				else
16276a7d5cb6SOleg Bulyzhin 					print_newports((ipfw_insn_u16 *)cmd, 0,
16286a7d5cb6SOleg Bulyzhin 					    O_TAGGED);
16296a7d5cb6SOleg Bulyzhin 				break;
16306a7d5cb6SOleg Bulyzhin 
16319758b77fSLuigi Rizzo 			default:
16329758b77fSLuigi Rizzo 				printf(" [opcode %d len %d]",
16339758b77fSLuigi Rizzo 				    cmd->opcode, cmd->len);
16349758b77fSLuigi Rizzo 			}
16359758b77fSLuigi Rizzo 		}
16369758b77fSLuigi Rizzo 		if (cmd->len & F_OR) {
16379758b77fSLuigi Rizzo 			printf(" or");
16389758b77fSLuigi Rizzo 			or_block = 1;
16399758b77fSLuigi Rizzo 		} else if (or_block) {
16409758b77fSLuigi Rizzo 			printf(" }");
16419758b77fSLuigi Rizzo 			or_block = 0;
16429758b77fSLuigi Rizzo 		}
16439758b77fSLuigi Rizzo 	}
1644f68f58e5SLuigi Rizzo 	show_prerequisites(&flags, HAVE_PROTO | HAVE_SRCIP | HAVE_DSTIP
1645f68f58e5SLuigi Rizzo 					      | HAVE_IP, 0);
1646bbc39c83SLuigi Rizzo 	if (comment)
1647bbc39c83SLuigi Rizzo 		printf(" // %s", comment);
16489758b77fSLuigi Rizzo 	printf("\n");
16499758b77fSLuigi Rizzo }
16509758b77fSLuigi Rizzo 
16519758b77fSLuigi Rizzo static void
165245f61351SMaxim Konovalov show_dyn_ipfw(ipfw_dyn_rule *d, int pcwidth, int bcwidth)
16539758b77fSLuigi Rizzo {
16549758b77fSLuigi Rizzo 	struct protoent *pe;
16559758b77fSLuigi Rizzo 	struct in_addr a;
1656330462a3SBernd Walter 	uint16_t rulenum;
165781bd0dc0SMax Laier 	char buf[INET6_ADDRSTRLEN];
16589758b77fSLuigi Rizzo 
1659db7c5224SLuigi Rizzo 	if (!co.do_expired) {
16609758b77fSLuigi Rizzo 		if (!d->expire && !(d->dyn_type == O_LIMIT_PARENT))
16619758b77fSLuigi Rizzo 			return;
16629758b77fSLuigi Rizzo 	}
1663330462a3SBernd Walter 	bcopy(&d->rule, &rulenum, sizeof(rulenum));
1664571f8c1bSLuigi Rizzo 	printf("%05d", rulenum);
166537133ba7SLuigi Rizzo 	if (pcwidth > 0 || bcwidth > 0) {
166637133ba7SLuigi Rizzo 		printf(" ");
166737133ba7SLuigi Rizzo 		pr_u64(&d->pcnt, pcwidth);
166837133ba7SLuigi Rizzo 		pr_u64(&d->bcnt, bcwidth);
166937133ba7SLuigi Rizzo 		printf("(%ds)", d->expire);
167037133ba7SLuigi Rizzo 	}
16719758b77fSLuigi Rizzo 	switch (d->dyn_type) {
16729758b77fSLuigi Rizzo 	case O_LIMIT_PARENT:
16739758b77fSLuigi Rizzo 		printf(" PARENT %d", d->count);
16749758b77fSLuigi Rizzo 		break;
16759758b77fSLuigi Rizzo 	case O_LIMIT:
16769758b77fSLuigi Rizzo 		printf(" LIMIT");
16779758b77fSLuigi Rizzo 		break;
16789758b77fSLuigi Rizzo 	case O_KEEP_STATE: /* bidir, no mask */
16799758b77fSLuigi Rizzo 		printf(" STATE");
16809758b77fSLuigi Rizzo 		break;
16819758b77fSLuigi Rizzo 	}
16829758b77fSLuigi Rizzo 
16839758b77fSLuigi Rizzo 	if ((pe = getprotobynumber(d->id.proto)) != NULL)
16849758b77fSLuigi Rizzo 		printf(" %s", pe->p_name);
16859758b77fSLuigi Rizzo 	else
16869758b77fSLuigi Rizzo 		printf(" proto %u", d->id.proto);
16879758b77fSLuigi Rizzo 
168881bd0dc0SMax Laier 	if (d->id.addr_type == 4) {
16899758b77fSLuigi Rizzo 		a.s_addr = htonl(d->id.src_ip);
16909758b77fSLuigi Rizzo 		printf(" %s %d", inet_ntoa(a), d->id.src_port);
16919758b77fSLuigi Rizzo 
16929758b77fSLuigi Rizzo 		a.s_addr = htonl(d->id.dst_ip);
16939758b77fSLuigi Rizzo 		printf(" <-> %s %d", inet_ntoa(a), d->id.dst_port);
169481bd0dc0SMax Laier 	} else if (d->id.addr_type == 6) {
169581bd0dc0SMax Laier 		printf(" %s %d", inet_ntop(AF_INET6, &d->id.src_ip6, buf,
169681bd0dc0SMax Laier 		    sizeof(buf)), d->id.src_port);
169781bd0dc0SMax Laier 		printf(" <-> %s %d", inet_ntop(AF_INET6, &d->id.dst_ip6, buf,
169881bd0dc0SMax Laier 		    sizeof(buf)), d->id.dst_port);
169981bd0dc0SMax Laier 	} else
170081bd0dc0SMax Laier 		printf(" UNKNOWN <-> UNKNOWN\n");
170181bd0dc0SMax Laier 
17029758b77fSLuigi Rizzo 	printf("\n");
17039758b77fSLuigi Rizzo }
17049758b77fSLuigi Rizzo 
170599e5e645SLuigi Rizzo /*
170699e5e645SLuigi Rizzo  * This one handles all set-related commands
170799e5e645SLuigi Rizzo  * 	ipfw set { show | enable | disable }
170899e5e645SLuigi Rizzo  * 	ipfw set swap X Y
170999e5e645SLuigi Rizzo  * 	ipfw set move X to Y
171099e5e645SLuigi Rizzo  * 	ipfw set move rule X to Y
171199e5e645SLuigi Rizzo  */
17123c0c8717SLuigi Rizzo void
1713cc4d3c30SLuigi Rizzo ipfw_sets_handler(char *av[])
171499e5e645SLuigi Rizzo {
1715571f8c1bSLuigi Rizzo 	uint32_t set_disable, masks[2];
171699e5e645SLuigi Rizzo 	int i, nbytes;
1717571f8c1bSLuigi Rizzo 	uint16_t rulenum;
1718571f8c1bSLuigi Rizzo 	uint8_t cmd, new_set;
171999e5e645SLuigi Rizzo 
172099e5e645SLuigi Rizzo 	av++;
172199e5e645SLuigi Rizzo 
1722cc4d3c30SLuigi Rizzo 	if (av[0] == NULL)
172399e5e645SLuigi Rizzo 		errx(EX_USAGE, "set needs command");
172401750186SBrooks Davis 	if (_substrcmp(*av, "show") == 0) {
1725c751221aSLuigi Rizzo 		void *data = NULL;
172662ff38aeSLuigi Rizzo 		char const *msg;
1727c751221aSLuigi Rizzo 		int nalloc;
172899e5e645SLuigi Rizzo 
1729c751221aSLuigi Rizzo 		nalloc = nbytes = sizeof(struct ip_fw);
1730c751221aSLuigi Rizzo 		while (nbytes >= nalloc) {
1731c751221aSLuigi Rizzo 			if (data)
1732c751221aSLuigi Rizzo 				free(data);
1733c751221aSLuigi Rizzo 			nalloc = nalloc * 2 + 200;
1734c751221aSLuigi Rizzo 			nbytes = nalloc;
17355f356082SLuigi Rizzo 			data = safe_calloc(1, nbytes);
1736884be75cSThomas Moestl 			if (do_cmd(IP_FW_GET, data, (uintptr_t)&nbytes) < 0)
173799e5e645SLuigi Rizzo 				err(EX_OSERR, "getsockopt(IP_FW_GET)");
1738c751221aSLuigi Rizzo 		}
1739c751221aSLuigi Rizzo 
1740330462a3SBernd Walter 		bcopy(&((struct ip_fw *)data)->next_rule,
1741330462a3SBernd Walter 			&set_disable, sizeof(set_disable));
1742330462a3SBernd Walter 
17433004afcaSLuigi Rizzo 		for (i = 0, msg = "disable" ; i < RESVD_SET; i++)
174499e5e645SLuigi Rizzo 			if ((set_disable & (1<<i))) {
174599e5e645SLuigi Rizzo 				printf("%s %d", msg, i);
174699e5e645SLuigi Rizzo 				msg = "";
174799e5e645SLuigi Rizzo 			}
174899e5e645SLuigi Rizzo 		msg = (set_disable) ? " enable" : "enable";
17493004afcaSLuigi Rizzo 		for (i = 0; i < RESVD_SET; i++)
175099e5e645SLuigi Rizzo 			if (!(set_disable & (1<<i))) {
175199e5e645SLuigi Rizzo 				printf("%s %d", msg, i);
175299e5e645SLuigi Rizzo 				msg = "";
175399e5e645SLuigi Rizzo 			}
175499e5e645SLuigi Rizzo 		printf("\n");
175501750186SBrooks Davis 	} else if (_substrcmp(*av, "swap") == 0) {
1756cc4d3c30SLuigi Rizzo 		av++;
1757cc4d3c30SLuigi Rizzo 		if ( av[0] == NULL || av[1] == NULL )
175899e5e645SLuigi Rizzo 			errx(EX_USAGE, "set swap needs 2 set numbers\n");
175999e5e645SLuigi Rizzo 		rulenum = atoi(av[0]);
176099e5e645SLuigi Rizzo 		new_set = atoi(av[1]);
17613004afcaSLuigi Rizzo 		if (!isdigit(*(av[0])) || rulenum > RESVD_SET)
176299e5e645SLuigi Rizzo 			errx(EX_DATAERR, "invalid set number %s\n", av[0]);
17633004afcaSLuigi Rizzo 		if (!isdigit(*(av[1])) || new_set > RESVD_SET)
176499e5e645SLuigi Rizzo 			errx(EX_DATAERR, "invalid set number %s\n", av[1]);
176599e5e645SLuigi Rizzo 		masks[0] = (4 << 24) | (new_set << 16) | (rulenum);
1766571f8c1bSLuigi Rizzo 		i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t));
176701750186SBrooks Davis 	} else if (_substrcmp(*av, "move") == 0) {
1768cc4d3c30SLuigi Rizzo 		av++;
1769c751221aSLuigi Rizzo 		if (av[0] && _substrcmp(*av, "rule") == 0) {
177099e5e645SLuigi Rizzo 			cmd = 2;
1771cc4d3c30SLuigi Rizzo 			av++;
177299e5e645SLuigi Rizzo 		} else
177399e5e645SLuigi Rizzo 			cmd = 3;
1774cc4d3c30SLuigi Rizzo 		if (av[0] == NULL || av[1] == NULL || av[2] == NULL ||
1775cc4d3c30SLuigi Rizzo 				av[3] != NULL ||  _substrcmp(av[1], "to") != 0)
177699e5e645SLuigi Rizzo 			errx(EX_USAGE, "syntax: set move [rule] X to Y\n");
177799e5e645SLuigi Rizzo 		rulenum = atoi(av[0]);
177899e5e645SLuigi Rizzo 		new_set = atoi(av[2]);
17793004afcaSLuigi Rizzo 		if (!isdigit(*(av[0])) || (cmd == 3 && rulenum > RESVD_SET) ||
1780759dd6f7SRoman Kurakin 			(cmd == 2 && rulenum == IPFW_DEFAULT_RULE) )
178199e5e645SLuigi Rizzo 			errx(EX_DATAERR, "invalid source number %s\n", av[0]);
17823004afcaSLuigi Rizzo 		if (!isdigit(*(av[2])) || new_set > RESVD_SET)
178399e5e645SLuigi Rizzo 			errx(EX_DATAERR, "invalid dest. set %s\n", av[1]);
178499e5e645SLuigi Rizzo 		masks[0] = (cmd << 24) | (new_set << 16) | (rulenum);
1785571f8c1bSLuigi Rizzo 		i = do_cmd(IP_FW_DEL, masks, sizeof(uint32_t));
178601750186SBrooks Davis 	} else if (_substrcmp(*av, "disable") == 0 ||
178701750186SBrooks Davis 		   _substrcmp(*av, "enable") == 0 ) {
178801750186SBrooks Davis 		int which = _substrcmp(*av, "enable") == 0 ? 1 : 0;
178999e5e645SLuigi Rizzo 
1790cc4d3c30SLuigi Rizzo 		av++;
179199e5e645SLuigi Rizzo 		masks[0] = masks[1] = 0;
179299e5e645SLuigi Rizzo 
1793c751221aSLuigi Rizzo 		while (av[0]) {
179499e5e645SLuigi Rizzo 			if (isdigit(**av)) {
179599e5e645SLuigi Rizzo 				i = atoi(*av);
17963004afcaSLuigi Rizzo 				if (i < 0 || i > RESVD_SET)
179799e5e645SLuigi Rizzo 					errx(EX_DATAERR,
179899e5e645SLuigi Rizzo 					    "invalid set number %d\n", i);
179999e5e645SLuigi Rizzo 				masks[which] |= (1<<i);
180001750186SBrooks Davis 			} else if (_substrcmp(*av, "disable") == 0)
180199e5e645SLuigi Rizzo 				which = 0;
180201750186SBrooks Davis 			else if (_substrcmp(*av, "enable") == 0)
180399e5e645SLuigi Rizzo 				which = 1;
180499e5e645SLuigi Rizzo 			else
180599e5e645SLuigi Rizzo 				errx(EX_DATAERR,
180699e5e645SLuigi Rizzo 					"invalid set command %s\n", *av);
1807cc4d3c30SLuigi Rizzo 			av++;
180899e5e645SLuigi Rizzo 		}
180999e5e645SLuigi Rizzo 		if ( (masks[0] & masks[1]) != 0 )
181099e5e645SLuigi Rizzo 			errx(EX_DATAERR,
181199e5e645SLuigi Rizzo 			    "cannot enable and disable the same set\n");
181299e5e645SLuigi Rizzo 
1813571f8c1bSLuigi Rizzo 		i = do_cmd(IP_FW_DEL, masks, sizeof(masks));
181499e5e645SLuigi Rizzo 		if (i)
181599e5e645SLuigi Rizzo 			warn("set enable/disable: setsockopt(IP_FW_DEL)");
181699e5e645SLuigi Rizzo 	} else
181799e5e645SLuigi Rizzo 		errx(EX_USAGE, "invalid set command %s\n", *av);
181899e5e645SLuigi Rizzo }
181999e5e645SLuigi Rizzo 
18203c0c8717SLuigi Rizzo void
1821cc4d3c30SLuigi Rizzo ipfw_sysctl_handler(char *av[], int which)
18226690be9eSMatthew Dillon {
18236690be9eSMatthew Dillon 	av++;
18246690be9eSMatthew Dillon 
1825cc4d3c30SLuigi Rizzo 	if (av[0] == NULL) {
18266690be9eSMatthew Dillon 		warnx("missing keyword to enable/disable\n");
182701750186SBrooks Davis 	} else if (_substrcmp(*av, "firewall") == 0) {
182829c1402aSLuigi Rizzo 		sysctlbyname("net.inet.ip.fw.enable", NULL, 0,
182929c1402aSLuigi Rizzo 		    &which, sizeof(which));
1830c323a5faSHajimu UMEMOTO 		sysctlbyname("net.inet6.ip6.fw.enable", NULL, 0,
1831c323a5faSHajimu UMEMOTO 		    &which, sizeof(which));
183201750186SBrooks Davis 	} else if (_substrcmp(*av, "one_pass") == 0) {
183329c1402aSLuigi Rizzo 		sysctlbyname("net.inet.ip.fw.one_pass", NULL, 0,
183429c1402aSLuigi Rizzo 		    &which, sizeof(which));
183501750186SBrooks Davis 	} else if (_substrcmp(*av, "debug") == 0) {
183629c1402aSLuigi Rizzo 		sysctlbyname("net.inet.ip.fw.debug", NULL, 0,
183729c1402aSLuigi Rizzo 		    &which, sizeof(which));
183801750186SBrooks Davis 	} else if (_substrcmp(*av, "verbose") == 0) {
183929c1402aSLuigi Rizzo 		sysctlbyname("net.inet.ip.fw.verbose", NULL, 0,
184029c1402aSLuigi Rizzo 		    &which, sizeof(which));
184101750186SBrooks Davis 	} else if (_substrcmp(*av, "dyn_keepalive") == 0) {
184229c1402aSLuigi Rizzo 		sysctlbyname("net.inet.ip.fw.dyn_keepalive", NULL, 0,
184329c1402aSLuigi Rizzo 		    &which, sizeof(which));
1844cc4d3c30SLuigi Rizzo #ifndef NO_ALTQ
184501750186SBrooks Davis 	} else if (_substrcmp(*av, "altq") == 0) {
1846974dfe30SBrian Feldman 		altq_set_enabled(which);
1847cc4d3c30SLuigi Rizzo #endif
18486690be9eSMatthew Dillon 	} else {
18496690be9eSMatthew Dillon 		warnx("unrecognize enable/disable keyword: %s\n", *av);
18506690be9eSMatthew Dillon 	}
18516690be9eSMatthew Dillon }
18526690be9eSMatthew Dillon 
18533c0c8717SLuigi Rizzo void
18543c0c8717SLuigi Rizzo ipfw_list(int ac, char *av[], int show_counters)
18559758b77fSLuigi Rizzo {
18569758b77fSLuigi Rizzo 	struct ip_fw *r;
18579758b77fSLuigi Rizzo 	ipfw_dyn_rule *dynrules, *d;
18589758b77fSLuigi Rizzo 
185962ff38aeSLuigi Rizzo #define NEXT(r)	((struct ip_fw *)((char *)r + RULESIZE(r)))
186062ff38aeSLuigi Rizzo 	char *lim;
186162ff38aeSLuigi Rizzo 	void *data = NULL;
186245f61351SMaxim Konovalov 	int bcwidth, n, nbytes, nstat, ndyn, pcwidth, width;
18639758b77fSLuigi Rizzo 	int exitval = EX_OK;
18649758b77fSLuigi Rizzo 	int lac;
18659758b77fSLuigi Rizzo 	char **lav;
186662ff38aeSLuigi Rizzo 	u_long rnum, last;
18679758b77fSLuigi Rizzo 	char *endptr;
18689758b77fSLuigi Rizzo 	int seen = 0;
1869d069a5d4SMaxim Konovalov 	uint8_t set;
18709758b77fSLuigi Rizzo 
1871db7c5224SLuigi Rizzo 	const int ocmd = co.do_pipe ? IP_DUMMYNET_GET : IP_FW_GET;
18729758b77fSLuigi Rizzo 	int nalloc = 1024;	/* start somewhere... */
18739758b77fSLuigi Rizzo 
187400ed6609SMaxim Konovalov 	last = 0;
187500ed6609SMaxim Konovalov 
1876db7c5224SLuigi Rizzo 	if (co.test_only) {
1877571f8c1bSLuigi Rizzo 		fprintf(stderr, "Testing only, list disabled\n");
1878571f8c1bSLuigi Rizzo 		return;
1879571f8c1bSLuigi Rizzo 	}
1880cc4d3c30SLuigi Rizzo 	if (co.do_pipe) {
1881cc4d3c30SLuigi Rizzo 		dummynet_list(ac, av, show_counters);
1882cc4d3c30SLuigi Rizzo 		return;
1883cc4d3c30SLuigi Rizzo 	}
1884571f8c1bSLuigi Rizzo 
18859758b77fSLuigi Rizzo 	ac--;
18869758b77fSLuigi Rizzo 	av++;
18879758b77fSLuigi Rizzo 
18889758b77fSLuigi Rizzo 	/* get rules or pipes from kernel, resizing array as necessary */
18899758b77fSLuigi Rizzo 	nbytes = nalloc;
18909758b77fSLuigi Rizzo 
18919758b77fSLuigi Rizzo 	while (nbytes >= nalloc) {
18929758b77fSLuigi Rizzo 		nalloc = nalloc * 2 + 200;
18939758b77fSLuigi Rizzo 		nbytes = nalloc;
18945f356082SLuigi Rizzo 		data = safe_realloc(data, nbytes);
1895884be75cSThomas Moestl 		if (do_cmd(ocmd, data, (uintptr_t)&nbytes) < 0)
18969758b77fSLuigi Rizzo 			err(EX_OSERR, "getsockopt(IP_%s_GET)",
1897db7c5224SLuigi Rizzo 				co.do_pipe ? "DUMMYNET" : "FW");
18989758b77fSLuigi Rizzo 	}
18999758b77fSLuigi Rizzo 
19009758b77fSLuigi Rizzo 	/*
19019758b77fSLuigi Rizzo 	 * Count static rules. They have variable size so we
19029758b77fSLuigi Rizzo 	 * need to scan the list to count them.
19039758b77fSLuigi Rizzo 	 */
190462ff38aeSLuigi Rizzo 	for (nstat = 1, r = data, lim = (char *)data + nbytes;
1905759dd6f7SRoman Kurakin 		    r->rulenum < IPFW_DEFAULT_RULE && (char *)r < lim;
190662ff38aeSLuigi Rizzo 		    ++nstat, r = NEXT(r) )
19079758b77fSLuigi Rizzo 		; /* nothing */
19089758b77fSLuigi Rizzo 
19099758b77fSLuigi Rizzo 	/*
19109758b77fSLuigi Rizzo 	 * Count dynamic rules. This is easier as they have
19119758b77fSLuigi Rizzo 	 * fixed size.
19129758b77fSLuigi Rizzo 	 */
191362ff38aeSLuigi Rizzo 	r = NEXT(r);
19149758b77fSLuigi Rizzo 	dynrules = (ipfw_dyn_rule *)r ;
191562ff38aeSLuigi Rizzo 	n = (char *)r - (char *)data;
19169758b77fSLuigi Rizzo 	ndyn = (nbytes - n) / sizeof *dynrules;
19179758b77fSLuigi Rizzo 
191845f61351SMaxim Konovalov 	/* if showing stats, figure out column widths ahead of time */
191945f61351SMaxim Konovalov 	bcwidth = pcwidth = 0;
192062ff38aeSLuigi Rizzo 	if (show_counters) {
192162ff38aeSLuigi Rizzo 		for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) {
1922d069a5d4SMaxim Konovalov 			/* skip rules from another set */
1923db7c5224SLuigi Rizzo 			if (co.use_set && r->set != co.use_set - 1)
1924d069a5d4SMaxim Konovalov 				continue;
1925d069a5d4SMaxim Konovalov 
192645f61351SMaxim Konovalov 			/* packet counter */
192737133ba7SLuigi Rizzo 			width = pr_u64(&r->pcnt, 0);
192845f61351SMaxim Konovalov 			if (width > pcwidth)
192945f61351SMaxim Konovalov 				pcwidth = width;
193045f61351SMaxim Konovalov 
193145f61351SMaxim Konovalov 			/* byte counter */
193237133ba7SLuigi Rizzo 			width = pr_u64(&r->bcnt, 0);
193345f61351SMaxim Konovalov 			if (width > bcwidth)
193445f61351SMaxim Konovalov 				bcwidth = width;
193545f61351SMaxim Konovalov 		}
193645f61351SMaxim Konovalov 	}
1937db7c5224SLuigi Rizzo 	if (co.do_dynamic && ndyn) {
193845f61351SMaxim Konovalov 		for (n = 0, d = dynrules; n < ndyn; n++, d++) {
1939db7c5224SLuigi Rizzo 			if (co.use_set) {
1940d069a5d4SMaxim Konovalov 				/* skip rules from another set */
19414a296ec7SMaxim Konovalov 				bcopy((char *)&d->rule + sizeof(uint16_t),
1942d069a5d4SMaxim Konovalov 				      &set, sizeof(uint8_t));
1943db7c5224SLuigi Rizzo 				if (set != co.use_set - 1)
1944d069a5d4SMaxim Konovalov 					continue;
1945d069a5d4SMaxim Konovalov 			}
194637133ba7SLuigi Rizzo 			width = pr_u64(&d->pcnt, 0);
194745f61351SMaxim Konovalov 			if (width > pcwidth)
194845f61351SMaxim Konovalov 				pcwidth = width;
194945f61351SMaxim Konovalov 
195037133ba7SLuigi Rizzo 			width = pr_u64(&d->bcnt, 0);
195145f61351SMaxim Konovalov 			if (width > bcwidth)
195245f61351SMaxim Konovalov 				bcwidth = width;
195345f61351SMaxim Konovalov 		}
195445f61351SMaxim Konovalov 	}
19559758b77fSLuigi Rizzo 	/* if no rule numbers were specified, list all rules */
19569758b77fSLuigi Rizzo 	if (ac == 0) {
1957d069a5d4SMaxim Konovalov 		for (n = 0, r = data; n < nstat; n++, r = NEXT(r)) {
1958db7c5224SLuigi Rizzo 			if (co.use_set && r->set != co.use_set - 1)
1959d069a5d4SMaxim Konovalov 				continue;
196045f61351SMaxim Konovalov 			show_ipfw(r, pcwidth, bcwidth);
1961d069a5d4SMaxim Konovalov 		}
19629758b77fSLuigi Rizzo 
1963db7c5224SLuigi Rizzo 		if (co.do_dynamic && ndyn) {
19649758b77fSLuigi Rizzo 			printf("## Dynamic rules (%d):\n", ndyn);
1965d069a5d4SMaxim Konovalov 			for (n = 0, d = dynrules; n < ndyn; n++, d++) {
1966db7c5224SLuigi Rizzo 				if (co.use_set) {
19674a296ec7SMaxim Konovalov 					bcopy((char *)&d->rule + sizeof(uint16_t),
1968d069a5d4SMaxim Konovalov 					      &set, sizeof(uint8_t));
1969db7c5224SLuigi Rizzo 					if (set != co.use_set - 1)
1970d069a5d4SMaxim Konovalov 						continue;
1971d069a5d4SMaxim Konovalov 				}
197245f61351SMaxim Konovalov 				show_dyn_ipfw(d, pcwidth, bcwidth);
19739758b77fSLuigi Rizzo 		}
1974d069a5d4SMaxim Konovalov 		}
19759758b77fSLuigi Rizzo 		goto done;
19769758b77fSLuigi Rizzo 	}
19779758b77fSLuigi Rizzo 
19789758b77fSLuigi Rizzo 	/* display specific rules requested on command line */
19799758b77fSLuigi Rizzo 
19809758b77fSLuigi Rizzo 	for (lac = ac, lav = av; lac != 0; lac--) {
19819758b77fSLuigi Rizzo 		/* convert command line rule # */
198262ff38aeSLuigi Rizzo 		last = rnum = strtoul(*lav++, &endptr, 10);
198362ff38aeSLuigi Rizzo 		if (*endptr == '-')
198462ff38aeSLuigi Rizzo 			last = strtoul(endptr+1, &endptr, 10);
19859758b77fSLuigi Rizzo 		if (*endptr) {
19869758b77fSLuigi Rizzo 			exitval = EX_USAGE;
19879758b77fSLuigi Rizzo 			warnx("invalid rule number: %s", *(lav - 1));
19889758b77fSLuigi Rizzo 			continue;
19899758b77fSLuigi Rizzo 		}
199062ff38aeSLuigi Rizzo 		for (n = seen = 0, r = data; n < nstat; n++, r = NEXT(r) ) {
199162ff38aeSLuigi Rizzo 			if (r->rulenum > last)
19929758b77fSLuigi Rizzo 				break;
1993db7c5224SLuigi Rizzo 			if (co.use_set && r->set != co.use_set - 1)
1994d069a5d4SMaxim Konovalov 				continue;
199562ff38aeSLuigi Rizzo 			if (r->rulenum >= rnum && r->rulenum <= last) {
199645f61351SMaxim Konovalov 				show_ipfw(r, pcwidth, bcwidth);
19979758b77fSLuigi Rizzo 				seen = 1;
19989758b77fSLuigi Rizzo 			}
19999758b77fSLuigi Rizzo 		}
20009758b77fSLuigi Rizzo 		if (!seen) {
20019758b77fSLuigi Rizzo 			/* give precedence to other error(s) */
20029758b77fSLuigi Rizzo 			if (exitval == EX_OK)
20039758b77fSLuigi Rizzo 				exitval = EX_UNAVAILABLE;
20049758b77fSLuigi Rizzo 			warnx("rule %lu does not exist", rnum);
20059758b77fSLuigi Rizzo 		}
20069758b77fSLuigi Rizzo 	}
20079758b77fSLuigi Rizzo 
2008db7c5224SLuigi Rizzo 	if (co.do_dynamic && ndyn) {
20099758b77fSLuigi Rizzo 		printf("## Dynamic rules:\n");
20109758b77fSLuigi Rizzo 		for (lac = ac, lav = av; lac != 0; lac--) {
20118195404bSBrooks Davis 			last = rnum = strtoul(*lav++, &endptr, 10);
201262ff38aeSLuigi Rizzo 			if (*endptr == '-')
201362ff38aeSLuigi Rizzo 				last = strtoul(endptr+1, &endptr, 10);
20149758b77fSLuigi Rizzo 			if (*endptr)
20159758b77fSLuigi Rizzo 				/* already warned */
20169758b77fSLuigi Rizzo 				continue;
20179758b77fSLuigi Rizzo 			for (n = 0, d = dynrules; n < ndyn; n++, d++) {
2018330462a3SBernd Walter 				uint16_t rulenum;
2019330462a3SBernd Walter 
2020330462a3SBernd Walter 				bcopy(&d->rule, &rulenum, sizeof(rulenum));
2021330462a3SBernd Walter 				if (rulenum > rnum)
20229758b77fSLuigi Rizzo 					break;
2023db7c5224SLuigi Rizzo 				if (co.use_set) {
20244a296ec7SMaxim Konovalov 					bcopy((char *)&d->rule + sizeof(uint16_t),
2025d069a5d4SMaxim Konovalov 					      &set, sizeof(uint8_t));
2026db7c5224SLuigi Rizzo 					if (set != co.use_set - 1)
2027d069a5d4SMaxim Konovalov 						continue;
2028d069a5d4SMaxim Konovalov 				}
202962ff38aeSLuigi Rizzo 				if (r->rulenum >= rnum && r->rulenum <= last)
203045f61351SMaxim Konovalov 					show_dyn_ipfw(d, pcwidth, bcwidth);
20319758b77fSLuigi Rizzo 			}
20329758b77fSLuigi Rizzo 		}
20339758b77fSLuigi Rizzo 	}
20349758b77fSLuigi Rizzo 
20359758b77fSLuigi Rizzo 	ac = 0;
20369758b77fSLuigi Rizzo 
20379758b77fSLuigi Rizzo done:
20389758b77fSLuigi Rizzo 	free(data);
20399758b77fSLuigi Rizzo 
20409758b77fSLuigi Rizzo 	if (exitval != EX_OK)
20419758b77fSLuigi Rizzo 		exit(exitval);
204262ff38aeSLuigi Rizzo #undef NEXT
20439758b77fSLuigi Rizzo }
20449758b77fSLuigi Rizzo 
20459758b77fSLuigi Rizzo static int
20469758b77fSLuigi Rizzo lookup_host (char *host, struct in_addr *ipaddr)
20479758b77fSLuigi Rizzo {
20489758b77fSLuigi Rizzo 	struct hostent *he;
20499758b77fSLuigi Rizzo 
20509758b77fSLuigi Rizzo 	if (!inet_aton(host, ipaddr)) {
20519758b77fSLuigi Rizzo 		if ((he = gethostbyname(host)) == NULL)
20529758b77fSLuigi Rizzo 			return(-1);
20539758b77fSLuigi Rizzo 		*ipaddr = *(struct in_addr *)he->h_addr_list[0];
20549758b77fSLuigi Rizzo 	}
20559758b77fSLuigi Rizzo 	return(0);
20569758b77fSLuigi Rizzo }
20579758b77fSLuigi Rizzo 
20589758b77fSLuigi Rizzo /*
20599758b77fSLuigi Rizzo  * fills the addr and mask fields in the instruction as appropriate from av.
20609758b77fSLuigi Rizzo  * Update length as appropriate.
20619758b77fSLuigi Rizzo  * The following formats are allowed:
20629758b77fSLuigi Rizzo  *	me	returns O_IP_*_ME
20639758b77fSLuigi Rizzo  *	1.2.3.4		single IP address
20649758b77fSLuigi Rizzo  *	1.2.3.4:5.6.7.8	address:mask
20659758b77fSLuigi Rizzo  *	1.2.3.4/24	address/mask
20669758b77fSLuigi Rizzo  *	1.2.3.4/26{1,6,5,4,23}	set of addresses in a subnet
2067571f8c1bSLuigi Rizzo  * We can have multiple comma-separated address/mask entries.
20689758b77fSLuigi Rizzo  */
20699758b77fSLuigi Rizzo static void
20709758b77fSLuigi Rizzo fill_ip(ipfw_insn_ip *cmd, char *av)
20719758b77fSLuigi Rizzo {
2072571f8c1bSLuigi Rizzo 	int len = 0;
2073571f8c1bSLuigi Rizzo 	uint32_t *d = ((ipfw_insn_u32 *)cmd)->d;
20749758b77fSLuigi Rizzo 
20759758b77fSLuigi Rizzo 	cmd->o.len &= ~F_LEN_MASK;	/* zero len */
20769758b77fSLuigi Rizzo 
207701750186SBrooks Davis 	if (_substrcmp(av, "any") == 0)
20789758b77fSLuigi Rizzo 		return;
20799758b77fSLuigi Rizzo 
208001750186SBrooks Davis 	if (_substrcmp(av, "me") == 0) {
20819758b77fSLuigi Rizzo 		cmd->o.len |= F_INSN_SIZE(ipfw_insn);
20829758b77fSLuigi Rizzo 		return;
20839758b77fSLuigi Rizzo 	}
20849758b77fSLuigi Rizzo 
208501750186SBrooks Davis 	if (strncmp(av, "table(", 6) == 0) {
2086cd8b5ae0SRuslan Ermilov 		char *p = strchr(av + 6, ',');
2087cd8b5ae0SRuslan Ermilov 
2088cd8b5ae0SRuslan Ermilov 		if (p)
2089cd8b5ae0SRuslan Ermilov 			*p++ = '\0';
2090cd8b5ae0SRuslan Ermilov 		cmd->o.opcode = O_IP_DST_LOOKUP;
2091cd8b5ae0SRuslan Ermilov 		cmd->o.arg1 = strtoul(av + 6, NULL, 0);
2092cd8b5ae0SRuslan Ermilov 		if (p) {
2093cd8b5ae0SRuslan Ermilov 			cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32);
2094cd8b5ae0SRuslan Ermilov 			d[0] = strtoul(p, NULL, 0);
2095cd8b5ae0SRuslan Ermilov 		} else
2096cd8b5ae0SRuslan Ermilov 			cmd->o.len |= F_INSN_SIZE(ipfw_insn);
2097cd8b5ae0SRuslan Ermilov 		return;
2098cd8b5ae0SRuslan Ermilov 	}
2099cd8b5ae0SRuslan Ermilov 
2100571f8c1bSLuigi Rizzo     while (av) {
2101571f8c1bSLuigi Rizzo 	/*
2102571f8c1bSLuigi Rizzo 	 * After the address we can have '/' or ':' indicating a mask,
2103571f8c1bSLuigi Rizzo 	 * ',' indicating another address follows, '{' indicating a
2104571f8c1bSLuigi Rizzo 	 * set of addresses of unspecified size.
2105571f8c1bSLuigi Rizzo 	 */
2106c2221c35SMax Laier 	char *t = NULL, *p = strpbrk(av, "/:,{");
2107571f8c1bSLuigi Rizzo 	int masklen;
2108daa9733aSLuigi Rizzo 	char md, nd = '\0';
2109571f8c1bSLuigi Rizzo 
21109758b77fSLuigi Rizzo 	if (p) {
21119758b77fSLuigi Rizzo 		md = *p;
21129758b77fSLuigi Rizzo 		*p++ = '\0';
2113c2221c35SMax Laier 		if ((t = strpbrk(p, ",{")) != NULL) {
2114c2221c35SMax Laier 			nd = *t;
2115c2221c35SMax Laier 			*t = '\0';
2116c2221c35SMax Laier 		}
2117571f8c1bSLuigi Rizzo 	} else
2118571f8c1bSLuigi Rizzo 		md = '\0';
21199758b77fSLuigi Rizzo 
2120571f8c1bSLuigi Rizzo 	if (lookup_host(av, (struct in_addr *)&d[0]) != 0)
21219758b77fSLuigi Rizzo 		errx(EX_NOHOST, "hostname ``%s'' unknown", av);
21229758b77fSLuigi Rizzo 	switch (md) {
21239758b77fSLuigi Rizzo 	case ':':
2124571f8c1bSLuigi Rizzo 		if (!inet_aton(p, (struct in_addr *)&d[1]))
21259758b77fSLuigi Rizzo 			errx(EX_DATAERR, "bad netmask ``%s''", p);
21269758b77fSLuigi Rizzo 		break;
21279758b77fSLuigi Rizzo 	case '/':
2128571f8c1bSLuigi Rizzo 		masklen = atoi(p);
2129571f8c1bSLuigi Rizzo 		if (masklen == 0)
2130571f8c1bSLuigi Rizzo 			d[1] = htonl(0);	/* mask */
2131571f8c1bSLuigi Rizzo 		else if (masklen > 32)
21329758b77fSLuigi Rizzo 			errx(EX_DATAERR, "bad width ``%s''", p);
21339758b77fSLuigi Rizzo 		else
2134571f8c1bSLuigi Rizzo 			d[1] = htonl(~0 << (32 - masklen));
21359758b77fSLuigi Rizzo 		break;
2136571f8c1bSLuigi Rizzo 	case '{':	/* no mask, assume /24 and put back the '{' */
2137571f8c1bSLuigi Rizzo 		d[1] = htonl(~0 << (32 - 24));
2138571f8c1bSLuigi Rizzo 		*(--p) = md;
2139571f8c1bSLuigi Rizzo 		break;
2140571f8c1bSLuigi Rizzo 
2141571f8c1bSLuigi Rizzo 	case ',':	/* single address plus continuation */
2142571f8c1bSLuigi Rizzo 		*(--p) = md;
2143571f8c1bSLuigi Rizzo 		/* FALLTHROUGH */
2144571f8c1bSLuigi Rizzo 	case 0:		/* initialization value */
21459758b77fSLuigi Rizzo 	default:
2146571f8c1bSLuigi Rizzo 		d[1] = htonl(~0);	/* force /32 */
21479758b77fSLuigi Rizzo 		break;
21489758b77fSLuigi Rizzo 	}
2149571f8c1bSLuigi Rizzo 	d[0] &= d[1];		/* mask base address with mask */
2150c2221c35SMax Laier 	if (t)
2151c2221c35SMax Laier 		*t = nd;
2152571f8c1bSLuigi Rizzo 	/* find next separator */
2153571f8c1bSLuigi Rizzo 	if (p)
2154571f8c1bSLuigi Rizzo 		p = strpbrk(p, ",{");
2155571f8c1bSLuigi Rizzo 	if (p && *p == '{') {
21569758b77fSLuigi Rizzo 		/*
2157571f8c1bSLuigi Rizzo 		 * We have a set of addresses. They are stored as follows:
21589758b77fSLuigi Rizzo 		 *   arg1	is the set size (powers of 2, 2..256)
21599758b77fSLuigi Rizzo 		 *   addr	is the base address IN HOST FORMAT
2160571f8c1bSLuigi Rizzo 		 *   mask..	is an array of arg1 bits (rounded up to
2161571f8c1bSLuigi Rizzo 		 *		the next multiple of 32) with bits set
2162571f8c1bSLuigi Rizzo 		 *		for each host in the map.
21639758b77fSLuigi Rizzo 		 */
2164571f8c1bSLuigi Rizzo 		uint32_t *map = (uint32_t *)&cmd->mask;
21659758b77fSLuigi Rizzo 		int low, high;
2166f3a126d3SLuigi Rizzo 		int i = contigmask((uint8_t *)&(d[1]), 32);
21679758b77fSLuigi Rizzo 
2168571f8c1bSLuigi Rizzo 		if (len > 0)
2169571f8c1bSLuigi Rizzo 			errx(EX_DATAERR, "address set cannot be in a list");
2170571f8c1bSLuigi Rizzo 		if (i < 24 || i > 31)
2171571f8c1bSLuigi Rizzo 			errx(EX_DATAERR, "invalid set with mask %d\n", i);
2172571f8c1bSLuigi Rizzo 		cmd->o.arg1 = 1<<(32-i);	/* map length		*/
2173571f8c1bSLuigi Rizzo 		d[0] = ntohl(d[0]);		/* base addr in host format */
21749758b77fSLuigi Rizzo 		cmd->o.opcode = O_IP_DST_SET;	/* default */
21759758b77fSLuigi Rizzo 		cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32) + (cmd->o.arg1+31)/32;
217661360012SLuigi Rizzo 		for (i = 0; i < (cmd->o.arg1+31)/32 ; i++)
2177571f8c1bSLuigi Rizzo 			map[i] = 0;	/* clear map */
21789758b77fSLuigi Rizzo 
21799758b77fSLuigi Rizzo 		av = p + 1;
2180571f8c1bSLuigi Rizzo 		low = d[0] & 0xff;
21819758b77fSLuigi Rizzo 		high = low + cmd->o.arg1 - 1;
2182571f8c1bSLuigi Rizzo 		/*
2183571f8c1bSLuigi Rizzo 		 * Here, i stores the previous value when we specify a range
2184571f8c1bSLuigi Rizzo 		 * of addresses within a mask, e.g. 45-63. i = -1 means we
2185571f8c1bSLuigi Rizzo 		 * have no previous value.
2186571f8c1bSLuigi Rizzo 		 */
21879ef3f16dSLuigi Rizzo 		i = -1;	/* previous value in a range */
21889758b77fSLuigi Rizzo 		while (isdigit(*av)) {
21899758b77fSLuigi Rizzo 			char *s;
2190571f8c1bSLuigi Rizzo 			int a = strtol(av, &s, 0);
21919758b77fSLuigi Rizzo 
2192571f8c1bSLuigi Rizzo 			if (s == av) { /* no parameter */
2193571f8c1bSLuigi Rizzo 			    if (*av != '}')
2194571f8c1bSLuigi Rizzo 				errx(EX_DATAERR, "set not closed\n");
2195571f8c1bSLuigi Rizzo 			    if (i != -1)
2196571f8c1bSLuigi Rizzo 				errx(EX_DATAERR, "incomplete range %d-", i);
21979758b77fSLuigi Rizzo 			    break;
21989758b77fSLuigi Rizzo 			}
2199571f8c1bSLuigi Rizzo 			if (a < low || a > high)
2200571f8c1bSLuigi Rizzo 			    errx(EX_DATAERR, "addr %d out of range [%d-%d]\n",
2201571f8c1bSLuigi Rizzo 				a, low, high);
22029758b77fSLuigi Rizzo 			a -= low;
22039ef3f16dSLuigi Rizzo 			if (i == -1)	/* no previous in range */
22049ef3f16dSLuigi Rizzo 			    i = a;
22059ef3f16dSLuigi Rizzo 			else {		/* check that range is valid */
22069ef3f16dSLuigi Rizzo 			    if (i > a)
22079ef3f16dSLuigi Rizzo 				errx(EX_DATAERR, "invalid range %d-%d",
22089ef3f16dSLuigi Rizzo 					i+low, a+low);
22099ef3f16dSLuigi Rizzo 			    if (*s == '-')
22109ef3f16dSLuigi Rizzo 				errx(EX_DATAERR, "double '-' in range");
22119ef3f16dSLuigi Rizzo 			}
22129ef3f16dSLuigi Rizzo 			for (; i <= a; i++)
2213571f8c1bSLuigi Rizzo 			    map[i/32] |= 1<<(i & 31);
22149ef3f16dSLuigi Rizzo 			i = -1;
22159ef3f16dSLuigi Rizzo 			if (*s == '-')
22169ef3f16dSLuigi Rizzo 			    i = a;
2217571f8c1bSLuigi Rizzo 			else if (*s == '}')
22189758b77fSLuigi Rizzo 			    break;
22199758b77fSLuigi Rizzo 			av = s+1;
22209758b77fSLuigi Rizzo 		}
22219758b77fSLuigi Rizzo 		return;
22229758b77fSLuigi Rizzo 	}
2223571f8c1bSLuigi Rizzo 	av = p;
2224571f8c1bSLuigi Rizzo 	if (av)			/* then *av must be a ',' */
2225571f8c1bSLuigi Rizzo 		av++;
22269758b77fSLuigi Rizzo 
2227571f8c1bSLuigi Rizzo 	/* Check this entry */
2228571f8c1bSLuigi Rizzo 	if (d[1] == 0) { /* "any", specified as x.x.x.x/0 */
2229571f8c1bSLuigi Rizzo 		/*
2230571f8c1bSLuigi Rizzo 		 * 'any' turns the entire list into a NOP.
2231571f8c1bSLuigi Rizzo 		 * 'not any' never matches, so it is removed from the
2232571f8c1bSLuigi Rizzo 		 * list unless it is the only item, in which case we
2233571f8c1bSLuigi Rizzo 		 * report an error.
2234571f8c1bSLuigi Rizzo 		 */
2235571f8c1bSLuigi Rizzo 		if (cmd->o.len & F_NOT) {	/* "not any" never matches */
2236571f8c1bSLuigi Rizzo 			if (av == NULL && len == 0) /* only this entry */
22379758b77fSLuigi Rizzo 				errx(EX_DATAERR, "not any never matches");
2238571f8c1bSLuigi Rizzo 		}
2239571f8c1bSLuigi Rizzo 		/* else do nothing and skip this entry */
224014533a98SMaxim Konovalov 		return;
2241571f8c1bSLuigi Rizzo 	}
2242571f8c1bSLuigi Rizzo 	/* A single IP can be stored in an optimized format */
2243cc4d3c30SLuigi Rizzo 	if (d[1] == (uint32_t)~0 && av == NULL && len == 0) {
22449758b77fSLuigi Rizzo 		cmd->o.len |= F_INSN_SIZE(ipfw_insn_u32);
2245571f8c1bSLuigi Rizzo 		return;
2246571f8c1bSLuigi Rizzo 	}
2247571f8c1bSLuigi Rizzo 	len += 2;	/* two words... */
2248571f8c1bSLuigi Rizzo 	d += 2;
2249571f8c1bSLuigi Rizzo     } /* end while */
2250268f526cSJohn Hay     if (len + 1 > F_LEN_MASK)
2251268f526cSJohn Hay 	errx(EX_DATAERR, "address list too long");
2252571f8c1bSLuigi Rizzo     cmd->o.len |= len+1;
22539758b77fSLuigi Rizzo }
22549758b77fSLuigi Rizzo 
22559758b77fSLuigi Rizzo 
22568195404bSBrooks Davis /* n2mask sets n bits of the mask */
22574e9c8ae7SLuigi Rizzo void
22588195404bSBrooks Davis n2mask(struct in6_addr *mask, int n)
22598195404bSBrooks Davis {
22608195404bSBrooks Davis 	static int	minimask[9] =
22618195404bSBrooks Davis 	    { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff };
22628195404bSBrooks Davis 	u_char		*p;
22638195404bSBrooks Davis 
22648195404bSBrooks Davis 	memset(mask, 0, sizeof(struct in6_addr));
22658195404bSBrooks Davis 	p = (u_char *) mask;
22668195404bSBrooks Davis 	for (; n > 0; p++, n -= 8) {
22678195404bSBrooks Davis 		if (n >= 8)
22688195404bSBrooks Davis 			*p = 0xff;
22698195404bSBrooks Davis 		else
22708195404bSBrooks Davis 			*p = minimask[n];
22718195404bSBrooks Davis 	}
22728195404bSBrooks Davis 	return;
22738195404bSBrooks Davis }
22748195404bSBrooks Davis 
22758195404bSBrooks Davis /*
22769758b77fSLuigi Rizzo  * helper function to process a set of flags and set bits in the
22779758b77fSLuigi Rizzo  * appropriate masks.
22789758b77fSLuigi Rizzo  */
22799758b77fSLuigi Rizzo static void
22809758b77fSLuigi Rizzo fill_flags(ipfw_insn *cmd, enum ipfw_opcodes opcode,
22819758b77fSLuigi Rizzo 	struct _s_x *flags, char *p)
22829758b77fSLuigi Rizzo {
2283571f8c1bSLuigi Rizzo 	uint8_t set=0, clear=0;
22849758b77fSLuigi Rizzo 
22859758b77fSLuigi Rizzo 	while (p && *p) {
22869758b77fSLuigi Rizzo 		char *q;	/* points to the separator */
22879758b77fSLuigi Rizzo 		int val;
2288571f8c1bSLuigi Rizzo 		uint8_t *which;	/* mask we are working on */
22899758b77fSLuigi Rizzo 
22909758b77fSLuigi Rizzo 		if (*p == '!') {
22919758b77fSLuigi Rizzo 			p++;
22929758b77fSLuigi Rizzo 			which = &clear;
22939758b77fSLuigi Rizzo 		} else
22949758b77fSLuigi Rizzo 			which = &set;
22959758b77fSLuigi Rizzo 		q = strchr(p, ',');
22969758b77fSLuigi Rizzo 		if (q)
22979758b77fSLuigi Rizzo 			*q++ = '\0';
22989758b77fSLuigi Rizzo 		val = match_token(flags, p);
22999758b77fSLuigi Rizzo 		if (val <= 0)
23009758b77fSLuigi Rizzo 			errx(EX_DATAERR, "invalid flag %s", p);
2301571f8c1bSLuigi Rizzo 		*which |= (uint8_t)val;
23029758b77fSLuigi Rizzo 		p = q;
23039758b77fSLuigi Rizzo 	}
23049758b77fSLuigi Rizzo 	cmd->opcode = opcode;
23059758b77fSLuigi Rizzo 	cmd->len =  (cmd->len & (F_NOT | F_OR)) | 1;
23069758b77fSLuigi Rizzo 	cmd->arg1 = (set & 0xff) | ( (clear & 0xff) << 8);
23079758b77fSLuigi Rizzo }
23089758b77fSLuigi Rizzo 
23099758b77fSLuigi Rizzo 
23103c0c8717SLuigi Rizzo void
2311cc4d3c30SLuigi Rizzo ipfw_delete(char *av[])
23129758b77fSLuigi Rizzo {
2313571f8c1bSLuigi Rizzo 	uint32_t rulenum;
23149758b77fSLuigi Rizzo 	int i;
23159758b77fSLuigi Rizzo 	int exitval = EX_OK;
231643405724SLuigi Rizzo 	int do_set = 0;
23179758b77fSLuigi Rizzo 
2318cc4d3c30SLuigi Rizzo 	av++;
231904f70834SChristian S.J. Peron 	NEED1("missing rule specification");
2320cc4d3c30SLuigi Rizzo 	if ( *av && _substrcmp(*av, "set") == 0) {
2321d069a5d4SMaxim Konovalov 		/* Do not allow using the following syntax:
2322d069a5d4SMaxim Konovalov 		 *	ipfw set N delete set M
2323d069a5d4SMaxim Konovalov 		 */
2324db7c5224SLuigi Rizzo 		if (co.use_set)
2325d069a5d4SMaxim Konovalov 			errx(EX_DATAERR, "invalid syntax");
232643405724SLuigi Rizzo 		do_set = 1;	/* delete set */
2327cc4d3c30SLuigi Rizzo 		av++;
232899e5e645SLuigi Rizzo 	}
23299758b77fSLuigi Rizzo 
23309758b77fSLuigi Rizzo 	/* Rule number */
2331cc4d3c30SLuigi Rizzo 	while (*av && isdigit(**av)) {
2332cc4d3c30SLuigi Rizzo 		i = atoi(*av); av++;
2333db7c5224SLuigi Rizzo 		if (co.do_nat) {
2334ff2f6fe8SPaolo Pisati 			exitval = do_cmd(IP_FW_NAT_DEL, &i, sizeof i);
2335ff2f6fe8SPaolo Pisati 			if (exitval) {
2336ff2f6fe8SPaolo Pisati 				exitval = EX_UNAVAILABLE;
2337ff2f6fe8SPaolo Pisati 				warn("rule %u not available", i);
2338ff2f6fe8SPaolo Pisati 			}
2339db7c5224SLuigi Rizzo  		} else if (co.do_pipe) {
23404e9c8ae7SLuigi Rizzo 			exitval = ipfw_delete_pipe(co.do_pipe, i);
23419758b77fSLuigi Rizzo 		} else {
2342db7c5224SLuigi Rizzo 			if (co.use_set)
2343d069a5d4SMaxim Konovalov 				rulenum = (i & 0xffff) | (5 << 24) |
2344db7c5224SLuigi Rizzo 				    ((co.use_set - 1) << 16);
2345d069a5d4SMaxim Konovalov 			else
234699e5e645SLuigi Rizzo 			rulenum =  (i & 0xffff) | (do_set << 24);
2347571f8c1bSLuigi Rizzo 			i = do_cmd(IP_FW_DEL, &rulenum, sizeof rulenum);
23489758b77fSLuigi Rizzo 			if (i) {
23499758b77fSLuigi Rizzo 				exitval = EX_UNAVAILABLE;
23509758b77fSLuigi Rizzo 				warn("rule %u: setsockopt(IP_FW_DEL)",
23519758b77fSLuigi Rizzo 				    rulenum);
23529758b77fSLuigi Rizzo 			}
23539758b77fSLuigi Rizzo 		}
23549758b77fSLuigi Rizzo 	}
23559758b77fSLuigi Rizzo 	if (exitval != EX_OK)
23569758b77fSLuigi Rizzo 		exit(exitval);
23579758b77fSLuigi Rizzo }
23589758b77fSLuigi Rizzo 
23599758b77fSLuigi Rizzo 
23609758b77fSLuigi Rizzo /*
23619758b77fSLuigi Rizzo  * fill the interface structure. We do not check the name as we can
23629758b77fSLuigi Rizzo  * create interfaces dynamically, so checking them at insert time
23639758b77fSLuigi Rizzo  * makes relatively little sense.
23649bf40edeSBrooks Davis  * Interface names containing '*', '?', or '[' are assumed to be shell
23659bf40edeSBrooks Davis  * patterns which match interfaces.
23669758b77fSLuigi Rizzo  */
23679758b77fSLuigi Rizzo static void
23689758b77fSLuigi Rizzo fill_iface(ipfw_insn_if *cmd, char *arg)
23699758b77fSLuigi Rizzo {
23709758b77fSLuigi Rizzo 	cmd->name[0] = '\0';
23719758b77fSLuigi Rizzo 	cmd->o.len |= F_INSN_SIZE(ipfw_insn_if);
23729758b77fSLuigi Rizzo 
23739758b77fSLuigi Rizzo 	/* Parse the interface or address */
237401750186SBrooks Davis 	if (strcmp(arg, "any") == 0)
23759758b77fSLuigi Rizzo 		cmd->o.len = 0;		/* effectively ignore this command */
2376*f8bee51aSAlexander V. Chernikov 	else if (strncmp(arg, "table(", 6) == 0) {
2377*f8bee51aSAlexander V. Chernikov 		char *p = strchr(arg + 6, ',');
2378*f8bee51aSAlexander V. Chernikov 		if (p)
2379*f8bee51aSAlexander V. Chernikov 			*p++ = '\0';
2380*f8bee51aSAlexander V. Chernikov 		cmd->name[0] = '\1'; /* Special value indicating table */
2381*f8bee51aSAlexander V. Chernikov 		cmd->p.glob = strtoul(arg + 6, NULL, 0);
2382*f8bee51aSAlexander V. Chernikov 	} else if (!isdigit(*arg)) {
23839bf40edeSBrooks Davis 		strlcpy(cmd->name, arg, sizeof(cmd->name));
23849bf40edeSBrooks Davis 		cmd->p.glob = strpbrk(arg, "*?[") != NULL ? 1 : 0;
23859758b77fSLuigi Rizzo 	} else if (!inet_aton(arg, &cmd->p.ip))
23869758b77fSLuigi Rizzo 		errx(EX_DATAERR, "bad ip address ``%s''", arg);
23879758b77fSLuigi Rizzo }
23889758b77fSLuigi Rizzo 
23899758b77fSLuigi Rizzo static void
2390bd1d3456SMaxim Konovalov get_mac_addr_mask(const char *p, uint8_t *addr, uint8_t *mask)
23919758b77fSLuigi Rizzo {
2392cc4d3c30SLuigi Rizzo 	int i;
2393cc4d3c30SLuigi Rizzo 	size_t l;
2394bd1d3456SMaxim Konovalov 	char *ap, *ptr, *optr;
2395bd1d3456SMaxim Konovalov 	struct ether_addr *mac;
2396bd1d3456SMaxim Konovalov 	const char *macset = "0123456789abcdefABCDEF:";
23979758b77fSLuigi Rizzo 
2398bd1d3456SMaxim Konovalov 	if (strcmp(p, "any") == 0) {
2399bd1d3456SMaxim Konovalov 		for (i = 0; i < ETHER_ADDR_LEN; i++)
24009758b77fSLuigi Rizzo 			addr[i] = mask[i] = 0;
24019758b77fSLuigi Rizzo 		return;
2402bd1d3456SMaxim Konovalov 	}
24039758b77fSLuigi Rizzo 
2404bd1d3456SMaxim Konovalov 	optr = ptr = strdup(p);
2405bd1d3456SMaxim Konovalov 	if ((ap = strsep(&ptr, "&/")) != NULL && *ap != 0) {
2406bd1d3456SMaxim Konovalov 		l = strlen(ap);
2407bd1d3456SMaxim Konovalov 		if (strspn(ap, macset) != l || (mac = ether_aton(ap)) == NULL)
2408bd1d3456SMaxim Konovalov 			errx(EX_DATAERR, "Incorrect MAC address");
2409bd1d3456SMaxim Konovalov 		bcopy(mac, addr, ETHER_ADDR_LEN);
2410bd1d3456SMaxim Konovalov 	} else
2411bd1d3456SMaxim Konovalov 		errx(EX_DATAERR, "Incorrect MAC address");
2412bd1d3456SMaxim Konovalov 
2413bd1d3456SMaxim Konovalov 	if (ptr != NULL) { /* we have mask? */
2414bd1d3456SMaxim Konovalov 		if (p[ptr - optr - 1] == '/') { /* mask len */
2415cc4d3c30SLuigi Rizzo 			long ml = strtol(ptr, &ap, 10);
2416cc4d3c30SLuigi Rizzo 			if (*ap != 0 || ml > ETHER_ADDR_LEN * 8 || ml < 0)
2417bd1d3456SMaxim Konovalov 				errx(EX_DATAERR, "Incorrect mask length");
2418cc4d3c30SLuigi Rizzo 			for (i = 0; ml > 0 && i < ETHER_ADDR_LEN; ml -= 8, i++)
2419cc4d3c30SLuigi Rizzo 				mask[i] = (ml >= 8) ? 0xff: (~0) << (8 - ml);
2420bd1d3456SMaxim Konovalov 		} else { /* mask */
2421bd1d3456SMaxim Konovalov 			l = strlen(ptr);
2422bd1d3456SMaxim Konovalov 			if (strspn(ptr, macset) != l ||
2423bd1d3456SMaxim Konovalov 			    (mac = ether_aton(ptr)) == NULL)
2424bd1d3456SMaxim Konovalov 				errx(EX_DATAERR, "Incorrect mask");
2425bd1d3456SMaxim Konovalov 			bcopy(mac, mask, ETHER_ADDR_LEN);
24269758b77fSLuigi Rizzo 		}
2427bd1d3456SMaxim Konovalov 	} else { /* default mask: ff:ff:ff:ff:ff:ff */
2428bd1d3456SMaxim Konovalov 		for (i = 0; i < ETHER_ADDR_LEN; i++)
24299758b77fSLuigi Rizzo 			mask[i] = 0xff;
24309758b77fSLuigi Rizzo 	}
2431bd1d3456SMaxim Konovalov 	for (i = 0; i < ETHER_ADDR_LEN; i++)
24329758b77fSLuigi Rizzo 		addr[i] &= mask[i];
2433bd1d3456SMaxim Konovalov 
2434bd1d3456SMaxim Konovalov 	free(optr);
24359758b77fSLuigi Rizzo }
24369758b77fSLuigi Rizzo 
24379758b77fSLuigi Rizzo /*
24389758b77fSLuigi Rizzo  * helper function, updates the pointer to cmd with the length
24399758b77fSLuigi Rizzo  * of the current command, and also cleans up the first word of
24409758b77fSLuigi Rizzo  * the new command in case it has been clobbered before.
24419758b77fSLuigi Rizzo  */
24429758b77fSLuigi Rizzo static ipfw_insn *
24439758b77fSLuigi Rizzo next_cmd(ipfw_insn *cmd)
24449758b77fSLuigi Rizzo {
24459758b77fSLuigi Rizzo 	cmd += F_LEN(cmd);
24469758b77fSLuigi Rizzo 	bzero(cmd, sizeof(*cmd));
24479758b77fSLuigi Rizzo 	return cmd;
24489758b77fSLuigi Rizzo }
24499758b77fSLuigi Rizzo 
24509758b77fSLuigi Rizzo /*
245162ff38aeSLuigi Rizzo  * Takes arguments and copies them into a comment
245262ff38aeSLuigi Rizzo  */
245362ff38aeSLuigi Rizzo static void
2454cc4d3c30SLuigi Rizzo fill_comment(ipfw_insn *cmd, char **av)
245562ff38aeSLuigi Rizzo {
245662ff38aeSLuigi Rizzo 	int i, l;
245762ff38aeSLuigi Rizzo 	char *p = (char *)(cmd + 1);
245862ff38aeSLuigi Rizzo 
245962ff38aeSLuigi Rizzo 	cmd->opcode = O_NOP;
246062ff38aeSLuigi Rizzo 	cmd->len =  (cmd->len & (F_NOT | F_OR));
246162ff38aeSLuigi Rizzo 
246262ff38aeSLuigi Rizzo 	/* Compute length of comment string. */
2463cc4d3c30SLuigi Rizzo 	for (i = 0, l = 0; av[i] != NULL; i++)
246462ff38aeSLuigi Rizzo 		l += strlen(av[i]) + 1;
246562ff38aeSLuigi Rizzo 	if (l == 0)
246662ff38aeSLuigi Rizzo 		return;
246762ff38aeSLuigi Rizzo 	if (l > 84)
246862ff38aeSLuigi Rizzo 		errx(EX_DATAERR,
246962ff38aeSLuigi Rizzo 		    "comment too long (max 80 chars)");
247062ff38aeSLuigi Rizzo 	l = 1 + (l+3)/4;
247162ff38aeSLuigi Rizzo 	cmd->len =  (cmd->len & (F_NOT | F_OR)) | l;
2472cc4d3c30SLuigi Rizzo 	for (i = 0; av[i] != NULL; i++) {
247362ff38aeSLuigi Rizzo 		strcpy(p, av[i]);
247462ff38aeSLuigi Rizzo 		p += strlen(av[i]);
247562ff38aeSLuigi Rizzo 		*p++ = ' ';
247662ff38aeSLuigi Rizzo 	}
247762ff38aeSLuigi Rizzo 	*(--p) = '\0';
247862ff38aeSLuigi Rizzo }
247962ff38aeSLuigi Rizzo 
248062ff38aeSLuigi Rizzo /*
24819758b77fSLuigi Rizzo  * A function to fill simple commands of size 1.
24829758b77fSLuigi Rizzo  * Existing flags are preserved.
24839758b77fSLuigi Rizzo  */
24849758b77fSLuigi Rizzo static void
2485571f8c1bSLuigi Rizzo fill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg)
24869758b77fSLuigi Rizzo {
24879758b77fSLuigi Rizzo 	cmd->opcode = opcode;
24889758b77fSLuigi Rizzo 	cmd->len =  ((cmd->len | flags) & (F_NOT | F_OR)) | 1;
24899758b77fSLuigi Rizzo 	cmd->arg1 = arg;
24909758b77fSLuigi Rizzo }
24919758b77fSLuigi Rizzo 
24929758b77fSLuigi Rizzo /*
24939758b77fSLuigi Rizzo  * Fetch and add the MAC address and type, with masks. This generates one or
24949758b77fSLuigi Rizzo  * two microinstructions, and returns the pointer to the last one.
24959758b77fSLuigi Rizzo  */
24969758b77fSLuigi Rizzo static ipfw_insn *
2497cc4d3c30SLuigi Rizzo add_mac(ipfw_insn *cmd, char *av[])
24989758b77fSLuigi Rizzo {
2499e706181bSLuigi Rizzo 	ipfw_insn_mac *mac;
25009758b77fSLuigi Rizzo 
2501cc4d3c30SLuigi Rizzo 	if ( ( av[0] == NULL ) || ( av[1] == NULL ) )
25025a155b40SLuigi Rizzo 		errx(EX_DATAERR, "MAC dst src");
25039758b77fSLuigi Rizzo 
25049758b77fSLuigi Rizzo 	cmd->opcode = O_MACADDR2;
25059758b77fSLuigi Rizzo 	cmd->len = (cmd->len & (F_NOT | F_OR)) | F_INSN_SIZE(ipfw_insn_mac);
25069758b77fSLuigi Rizzo 
25079758b77fSLuigi Rizzo 	mac = (ipfw_insn_mac *)cmd;
25089758b77fSLuigi Rizzo 	get_mac_addr_mask(av[0], mac->addr, mac->mask);	/* dst */
2509bd1d3456SMaxim Konovalov 	get_mac_addr_mask(av[1], &(mac->addr[ETHER_ADDR_LEN]),
2510bd1d3456SMaxim Konovalov 	    &(mac->mask[ETHER_ADDR_LEN])); /* src */
2511e706181bSLuigi Rizzo 	return cmd;
25129758b77fSLuigi Rizzo }
25139758b77fSLuigi Rizzo 
2514e706181bSLuigi Rizzo static ipfw_insn *
2515cc4d3c30SLuigi Rizzo add_mactype(ipfw_insn *cmd, char *av)
2516e706181bSLuigi Rizzo {
2517cc4d3c30SLuigi Rizzo 	if (!av)
2518e706181bSLuigi Rizzo 		errx(EX_DATAERR, "missing MAC type");
2519e706181bSLuigi Rizzo 	if (strcmp(av, "any") != 0) { /* we have a non-null type */
2520e706181bSLuigi Rizzo 		fill_newports((ipfw_insn_u16 *)cmd, av, IPPROTO_ETHERTYPE);
2521e706181bSLuigi Rizzo 		cmd->opcode = O_MAC_TYPE;
25229758b77fSLuigi Rizzo 		return cmd;
2523e706181bSLuigi Rizzo 	} else
2524e706181bSLuigi Rizzo 		return NULL;
2525e706181bSLuigi Rizzo }
2526e706181bSLuigi Rizzo 
2527e706181bSLuigi Rizzo static ipfw_insn *
252836c263ccSHajimu UMEMOTO add_proto0(ipfw_insn *cmd, char *av, u_char *protop)
2529e706181bSLuigi Rizzo {
2530e706181bSLuigi Rizzo 	struct protoent *pe;
253136c263ccSHajimu UMEMOTO 	char *ep;
253236c263ccSHajimu UMEMOTO 	int proto;
25338195404bSBrooks Davis 
2534c6ec0226SHajimu UMEMOTO 	proto = strtol(av, &ep, 10);
2535c6ec0226SHajimu UMEMOTO 	if (*ep != '\0' || proto <= 0) {
253636c263ccSHajimu UMEMOTO 		if ((pe = getprotobyname(av)) == NULL)
253736c263ccSHajimu UMEMOTO 			return NULL;
253836c263ccSHajimu UMEMOTO 		proto = pe->p_proto;
253936c263ccSHajimu UMEMOTO 	}
254036c263ccSHajimu UMEMOTO 
254136c263ccSHajimu UMEMOTO 	fill_cmd(cmd, O_PROTO, 0, proto);
254236c263ccSHajimu UMEMOTO 	*protop = proto;
254336c263ccSHajimu UMEMOTO 	return cmd;
254436c263ccSHajimu UMEMOTO }
254536c263ccSHajimu UMEMOTO 
254636c263ccSHajimu UMEMOTO static ipfw_insn *
254736c263ccSHajimu UMEMOTO add_proto(ipfw_insn *cmd, char *av, u_char *protop)
254836c263ccSHajimu UMEMOTO {
254936c263ccSHajimu UMEMOTO 	u_char proto = IPPROTO_IP;
2550e706181bSLuigi Rizzo 
2551c6ec0226SHajimu UMEMOTO 	if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0)
255257cd6d26SMax Laier 		; /* do not set O_IP4 nor O_IP6 */
255336c263ccSHajimu UMEMOTO 	else if (strcmp(av, "ip4") == 0)
255436c263ccSHajimu UMEMOTO 		/* explicit "just IPv4" rule */
255536c263ccSHajimu UMEMOTO 		fill_cmd(cmd, O_IP4, 0, 0);
255636c263ccSHajimu UMEMOTO 	else if (strcmp(av, "ip6") == 0) {
255736c263ccSHajimu UMEMOTO 		/* explicit "just IPv6" rule */
255836c263ccSHajimu UMEMOTO 		proto = IPPROTO_IPV6;
255936c263ccSHajimu UMEMOTO 		fill_cmd(cmd, O_IP6, 0, 0);
256036c263ccSHajimu UMEMOTO 	} else
256136c263ccSHajimu UMEMOTO 		return add_proto0(cmd, av, protop);
256236c263ccSHajimu UMEMOTO 
256336c263ccSHajimu UMEMOTO 	*protop = proto;
256436c263ccSHajimu UMEMOTO 	return cmd;
256536c263ccSHajimu UMEMOTO }
256636c263ccSHajimu UMEMOTO 
256736c263ccSHajimu UMEMOTO static ipfw_insn *
256836c263ccSHajimu UMEMOTO add_proto_compat(ipfw_insn *cmd, char *av, u_char *protop)
256936c263ccSHajimu UMEMOTO {
257036c263ccSHajimu UMEMOTO 	u_char proto = IPPROTO_IP;
257136c263ccSHajimu UMEMOTO 
257236c263ccSHajimu UMEMOTO 	if (_substrcmp(av, "all") == 0 || strcmp(av, "ip") == 0)
257336c263ccSHajimu UMEMOTO 		; /* do not set O_IP4 nor O_IP6 */
257457cd6d26SMax Laier 	else if (strcmp(av, "ipv4") == 0 || strcmp(av, "ip4") == 0)
257557cd6d26SMax Laier 		/* explicit "just IPv4" rule */
257657cd6d26SMax Laier 		fill_cmd(cmd, O_IP4, 0, 0);
257757cd6d26SMax Laier 	else if (strcmp(av, "ipv6") == 0 || strcmp(av, "ip6") == 0) {
257857cd6d26SMax Laier 		/* explicit "just IPv6" rule */
257936c263ccSHajimu UMEMOTO 		proto = IPPROTO_IPV6;
258057cd6d26SMax Laier 		fill_cmd(cmd, O_IP6, 0, 0);
258136c263ccSHajimu UMEMOTO 	} else
258236c263ccSHajimu UMEMOTO 		return add_proto0(cmd, av, protop);
25838195404bSBrooks Davis 
258436c263ccSHajimu UMEMOTO 	*protop = proto;
2585e706181bSLuigi Rizzo 	return cmd;
2586e706181bSLuigi Rizzo }
2587e706181bSLuigi Rizzo 
2588e706181bSLuigi Rizzo static ipfw_insn *
2589e706181bSLuigi Rizzo add_srcip(ipfw_insn *cmd, char *av)
2590e706181bSLuigi Rizzo {
2591e706181bSLuigi Rizzo 	fill_ip((ipfw_insn_ip *)cmd, av);
2592e706181bSLuigi Rizzo 	if (cmd->opcode == O_IP_DST_SET)			/* set */
2593e706181bSLuigi Rizzo 		cmd->opcode = O_IP_SRC_SET;
2594cd8b5ae0SRuslan Ermilov 	else if (cmd->opcode == O_IP_DST_LOOKUP)		/* table */
2595cd8b5ae0SRuslan Ermilov 		cmd->opcode = O_IP_SRC_LOOKUP;
2596e706181bSLuigi Rizzo 	else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn))		/* me */
2597e706181bSLuigi Rizzo 		cmd->opcode = O_IP_SRC_ME;
2598e706181bSLuigi Rizzo 	else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32))	/* one IP */
2599e706181bSLuigi Rizzo 		cmd->opcode = O_IP_SRC;
2600571f8c1bSLuigi Rizzo 	else							/* addr/mask */
2601e706181bSLuigi Rizzo 		cmd->opcode = O_IP_SRC_MASK;
2602e706181bSLuigi Rizzo 	return cmd;
2603e706181bSLuigi Rizzo }
2604e706181bSLuigi Rizzo 
2605e706181bSLuigi Rizzo static ipfw_insn *
2606e706181bSLuigi Rizzo add_dstip(ipfw_insn *cmd, char *av)
2607e706181bSLuigi Rizzo {
2608e706181bSLuigi Rizzo 	fill_ip((ipfw_insn_ip *)cmd, av);
2609e706181bSLuigi Rizzo 	if (cmd->opcode == O_IP_DST_SET)			/* set */
2610e706181bSLuigi Rizzo 		;
2611cd8b5ae0SRuslan Ermilov 	else if (cmd->opcode == O_IP_DST_LOOKUP)		/* table */
2612cd8b5ae0SRuslan Ermilov 		;
2613e706181bSLuigi Rizzo 	else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn))		/* me */
2614e706181bSLuigi Rizzo 		cmd->opcode = O_IP_DST_ME;
2615e706181bSLuigi Rizzo 	else if (F_LEN(cmd) == F_INSN_SIZE(ipfw_insn_u32))	/* one IP */
2616e706181bSLuigi Rizzo 		cmd->opcode = O_IP_DST;
2617571f8c1bSLuigi Rizzo 	else							/* addr/mask */
2618e706181bSLuigi Rizzo 		cmd->opcode = O_IP_DST_MASK;
2619e706181bSLuigi Rizzo 	return cmd;
2620e706181bSLuigi Rizzo }
2621e706181bSLuigi Rizzo 
2622e706181bSLuigi Rizzo static ipfw_insn *
2623e706181bSLuigi Rizzo add_ports(ipfw_insn *cmd, char *av, u_char proto, int opcode)
2624e706181bSLuigi Rizzo {
2625cc4d3c30SLuigi Rizzo 	/* XXX "any" is trapped before. Perhaps "to" */
262601750186SBrooks Davis 	if (_substrcmp(av, "any") == 0) {
2627e706181bSLuigi Rizzo 		return NULL;
2628e706181bSLuigi Rizzo 	} else if (fill_newports((ipfw_insn_u16 *)cmd, av, proto)) {
2629e706181bSLuigi Rizzo 		/* XXX todo: check that we have a protocol with ports */
2630e706181bSLuigi Rizzo 		cmd->opcode = opcode;
2631e706181bSLuigi Rizzo 		return cmd;
2632e706181bSLuigi Rizzo 	}
2633e706181bSLuigi Rizzo 	return NULL;
26349758b77fSLuigi Rizzo }
26359758b77fSLuigi Rizzo 
26368195404bSBrooks Davis static ipfw_insn *
26378195404bSBrooks Davis add_src(ipfw_insn *cmd, char *av, u_char proto)
26388195404bSBrooks Davis {
26398195404bSBrooks Davis 	struct in6_addr a;
2640926bbf90SMax Laier 	char *host, *ch;
2641926bbf90SMax Laier 	ipfw_insn *ret = NULL;
2642926bbf90SMax Laier 
2643926bbf90SMax Laier 	if ((host = strdup(av)) == NULL)
2644926bbf90SMax Laier 		return NULL;
2645926bbf90SMax Laier 	if ((ch = strrchr(host, '/')) != NULL)
2646926bbf90SMax Laier 		*ch = '\0';
26478195404bSBrooks Davis 
26488195404bSBrooks Davis 	if (proto == IPPROTO_IPV6  || strcmp(av, "me6") == 0 ||
2649cc4d3c30SLuigi Rizzo 	    inet_pton(AF_INET6, host, &a) == 1)
2650926bbf90SMax Laier 		ret = add_srcip6(cmd, av);
26518195404bSBrooks Davis 	/* XXX: should check for IPv4, not !IPv6 */
2652e28cb025SDavid Malone 	if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 ||
2653cc4d3c30SLuigi Rizzo 	    inet_pton(AF_INET6, host, &a) != 1))
2654926bbf90SMax Laier 		ret = add_srcip(cmd, av);
2655e28cb025SDavid Malone 	if (ret == NULL && strcmp(av, "any") != 0)
2656926bbf90SMax Laier 		ret = cmd;
26578195404bSBrooks Davis 
2658926bbf90SMax Laier 	free(host);
2659926bbf90SMax Laier 	return ret;
26608195404bSBrooks Davis }
26618195404bSBrooks Davis 
26628195404bSBrooks Davis static ipfw_insn *
26638195404bSBrooks Davis add_dst(ipfw_insn *cmd, char *av, u_char proto)
26648195404bSBrooks Davis {
26658195404bSBrooks Davis 	struct in6_addr a;
2666926bbf90SMax Laier 	char *host, *ch;
2667926bbf90SMax Laier 	ipfw_insn *ret = NULL;
2668926bbf90SMax Laier 
2669926bbf90SMax Laier 	if ((host = strdup(av)) == NULL)
2670926bbf90SMax Laier 		return NULL;
2671926bbf90SMax Laier 	if ((ch = strrchr(host, '/')) != NULL)
2672926bbf90SMax Laier 		*ch = '\0';
26738195404bSBrooks Davis 
26748195404bSBrooks Davis 	if (proto == IPPROTO_IPV6  || strcmp(av, "me6") == 0 ||
2675cc4d3c30SLuigi Rizzo 	    inet_pton(AF_INET6, host, &a) == 1)
2676926bbf90SMax Laier 		ret = add_dstip6(cmd, av);
26778195404bSBrooks Davis 	/* XXX: should check for IPv4, not !IPv6 */
2678e28cb025SDavid Malone 	if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 ||
2679cc4d3c30SLuigi Rizzo 	    inet_pton(AF_INET6, host, &a) != 1))
2680926bbf90SMax Laier 		ret = add_dstip(cmd, av);
2681e28cb025SDavid Malone 	if (ret == NULL && strcmp(av, "any") != 0)
2682926bbf90SMax Laier 		ret = cmd;
26838195404bSBrooks Davis 
2684926bbf90SMax Laier 	free(host);
2685926bbf90SMax Laier 	return ret;
26868195404bSBrooks Davis }
26878195404bSBrooks Davis 
26889758b77fSLuigi Rizzo /*
26899758b77fSLuigi Rizzo  * Parse arguments and assemble the microinstructions which make up a rule.
26909758b77fSLuigi Rizzo  * Rules are added into the 'rulebuf' and then copied in the correct order
26919758b77fSLuigi Rizzo  * into the actual rule.
26929758b77fSLuigi Rizzo  *
2693974dfe30SBrian Feldman  * The syntax for a rule starts with the action, followed by
2694974dfe30SBrian Feldman  * optional action parameters, and the various match patterns.
26959d5abbddSJens Schweikhardt  * In the assembled microcode, the first opcode must be an O_PROBE_STATE
26969758b77fSLuigi Rizzo  * (generated if the rule includes a keep-state option), then the
2697974dfe30SBrian Feldman  * various match patterns, log/altq actions, and the actual action.
26989758b77fSLuigi Rizzo  *
26999758b77fSLuigi Rizzo  */
27003c0c8717SLuigi Rizzo void
2701cc4d3c30SLuigi Rizzo ipfw_add(char *av[])
27029758b77fSLuigi Rizzo {
27039758b77fSLuigi Rizzo 	/*
27049758b77fSLuigi Rizzo 	 * rules are added into the 'rulebuf' and then copied in
27059758b77fSLuigi Rizzo 	 * the correct order into the actual rule.
27069758b77fSLuigi Rizzo 	 * Some things that need to go out of order (prob, action etc.)
27079758b77fSLuigi Rizzo 	 * go into actbuf[].
27089758b77fSLuigi Rizzo 	 */
2709571f8c1bSLuigi Rizzo 	static uint32_t rulebuf[255], actbuf[255], cmdbuf[255];
27109758b77fSLuigi Rizzo 
271162ff38aeSLuigi Rizzo 	ipfw_insn *src, *dst, *cmd, *action, *prev=NULL;
2712e706181bSLuigi Rizzo 	ipfw_insn *first_cmd;	/* first match pattern */
27139758b77fSLuigi Rizzo 
27149758b77fSLuigi Rizzo 	struct ip_fw *rule;
27159758b77fSLuigi Rizzo 
27169758b77fSLuigi Rizzo 	/*
27179758b77fSLuigi Rizzo 	 * various flags used to record that we entered some fields.
27189758b77fSLuigi Rizzo 	 */
271952bc23abSLuigi Rizzo 	ipfw_insn *have_state = NULL;	/* check-state or keep-state */
27206a7d5cb6SOleg Bulyzhin 	ipfw_insn *have_log = NULL, *have_altq = NULL, *have_tag = NULL;
27219ec4f2e1SMaxim Konovalov 	size_t len;
27229758b77fSLuigi Rizzo 
27239758b77fSLuigi Rizzo 	int i;
27249758b77fSLuigi Rizzo 
27259758b77fSLuigi Rizzo 	int open_par = 0;	/* open parenthesis ( */
27269758b77fSLuigi Rizzo 
27279758b77fSLuigi Rizzo 	/* proto is here because it is used to fetch ports */
27289758b77fSLuigi Rizzo 	u_char proto = IPPROTO_IP;	/* default protocol */
27299758b77fSLuigi Rizzo 
273012b5dc6aSLuigi Rizzo 	double match_prob = 1; /* match probability, default is always match */
273112b5dc6aSLuigi Rizzo 
27329758b77fSLuigi Rizzo 	bzero(actbuf, sizeof(actbuf));		/* actions go here */
27339758b77fSLuigi Rizzo 	bzero(cmdbuf, sizeof(cmdbuf));
27349758b77fSLuigi Rizzo 	bzero(rulebuf, sizeof(rulebuf));
27359758b77fSLuigi Rizzo 
27369758b77fSLuigi Rizzo 	rule = (struct ip_fw *)rulebuf;
27379758b77fSLuigi Rizzo 	cmd = (ipfw_insn *)cmdbuf;
27389758b77fSLuigi Rizzo 	action = (ipfw_insn *)actbuf;
27399758b77fSLuigi Rizzo 
2740cc4d3c30SLuigi Rizzo 	av++;
27419758b77fSLuigi Rizzo 
27429758b77fSLuigi Rizzo 	/* [rule N]	-- Rule number optional */
2743cc4d3c30SLuigi Rizzo 	if (av[0] && isdigit(**av)) {
27449758b77fSLuigi Rizzo 		rule->rulenum = atoi(*av);
27459758b77fSLuigi Rizzo 		av++;
27469758b77fSLuigi Rizzo 	}
27479758b77fSLuigi Rizzo 
27483004afcaSLuigi Rizzo 	/* [set N]	-- set number (0..RESVD_SET), optional */
2749c72c2330SLuigi Rizzo 	if (av[0] && av[1] && _substrcmp(*av, "set") == 0) {
275043405724SLuigi Rizzo 		int set = strtoul(av[1], NULL, 10);
27513004afcaSLuigi Rizzo 		if (set < 0 || set > RESVD_SET)
275243405724SLuigi Rizzo 			errx(EX_DATAERR, "illegal set %s", av[1]);
275343405724SLuigi Rizzo 		rule->set = set;
2754cc4d3c30SLuigi Rizzo 		av += 2;
275543405724SLuigi Rizzo 	}
275643405724SLuigi Rizzo 
27579758b77fSLuigi Rizzo 	/* [prob D]	-- match probability, optional */
2758cc4d3c30SLuigi Rizzo 	if (av[0] && av[1] && _substrcmp(*av, "prob") == 0) {
275912b5dc6aSLuigi Rizzo 		match_prob = strtod(av[1], NULL);
27609758b77fSLuigi Rizzo 
276112b5dc6aSLuigi Rizzo 		if (match_prob <= 0 || match_prob > 1)
27629758b77fSLuigi Rizzo 			errx(EX_DATAERR, "illegal match prob. %s", av[1]);
2763cc4d3c30SLuigi Rizzo 		av += 2;
27649758b77fSLuigi Rizzo 	}
27659758b77fSLuigi Rizzo 
27669758b77fSLuigi Rizzo 	/* action	-- mandatory */
27679758b77fSLuigi Rizzo 	NEED1("missing action");
27689758b77fSLuigi Rizzo 	i = match_token(rule_actions, *av);
2769cc4d3c30SLuigi Rizzo 	av++;
27709758b77fSLuigi Rizzo 	action->len = 1;	/* default */
27719758b77fSLuigi Rizzo 	switch(i) {
27729758b77fSLuigi Rizzo 	case TOK_CHECKSTATE:
277352bc23abSLuigi Rizzo 		have_state = action;
27749758b77fSLuigi Rizzo 		action->opcode = O_CHECK_STATE;
27759758b77fSLuigi Rizzo 		break;
27769758b77fSLuigi Rizzo 
27779758b77fSLuigi Rizzo 	case TOK_ACCEPT:
27789758b77fSLuigi Rizzo 		action->opcode = O_ACCEPT;
27799758b77fSLuigi Rizzo 		break;
27809758b77fSLuigi Rizzo 
27819758b77fSLuigi Rizzo 	case TOK_DENY:
27829758b77fSLuigi Rizzo 		action->opcode = O_DENY;
27835e43aef8SLuigi Rizzo 		action->arg1 = 0;
27845e43aef8SLuigi Rizzo 		break;
27855e43aef8SLuigi Rizzo 
27865e43aef8SLuigi Rizzo 	case TOK_REJECT:
27875e43aef8SLuigi Rizzo 		action->opcode = O_REJECT;
27885e43aef8SLuigi Rizzo 		action->arg1 = ICMP_UNREACH_HOST;
27895e43aef8SLuigi Rizzo 		break;
27905e43aef8SLuigi Rizzo 
27915e43aef8SLuigi Rizzo 	case TOK_RESET:
27925e43aef8SLuigi Rizzo 		action->opcode = O_REJECT;
27935e43aef8SLuigi Rizzo 		action->arg1 = ICMP_REJECT_RST;
27945e43aef8SLuigi Rizzo 		break;
27955e43aef8SLuigi Rizzo 
27969066356bSBjoern A. Zeeb 	case TOK_RESET6:
27979066356bSBjoern A. Zeeb 		action->opcode = O_UNREACH6;
27989066356bSBjoern A. Zeeb 		action->arg1 = ICMP6_UNREACH_RST;
27999066356bSBjoern A. Zeeb 		break;
28009066356bSBjoern A. Zeeb 
28015e43aef8SLuigi Rizzo 	case TOK_UNREACH:
28025e43aef8SLuigi Rizzo 		action->opcode = O_REJECT;
28035e43aef8SLuigi Rizzo 		NEED1("missing reject code");
28045e43aef8SLuigi Rizzo 		fill_reject_code(&action->arg1, *av);
2805cc4d3c30SLuigi Rizzo 		av++;
28069758b77fSLuigi Rizzo 		break;
28079758b77fSLuigi Rizzo 
28089066356bSBjoern A. Zeeb 	case TOK_UNREACH6:
28099066356bSBjoern A. Zeeb 		action->opcode = O_UNREACH6;
28109066356bSBjoern A. Zeeb 		NEED1("missing unreach code");
28119066356bSBjoern A. Zeeb 		fill_unreach6_code(&action->arg1, *av);
2812cc4d3c30SLuigi Rizzo 		av++;
28139066356bSBjoern A. Zeeb 		break;
28149066356bSBjoern A. Zeeb 
28159758b77fSLuigi Rizzo 	case TOK_COUNT:
28169758b77fSLuigi Rizzo 		action->opcode = O_COUNT;
28179758b77fSLuigi Rizzo 		break;
28189758b77fSLuigi Rizzo 
2819f94a7fc0SPaolo Pisati 	case TOK_NAT:
2820f94a7fc0SPaolo Pisati 		action->opcode = O_NAT;
2821f94a7fc0SPaolo Pisati 		action->len = F_INSN_SIZE(ipfw_insn_nat);
28221875bbfeSAndrey V. Elsukov 		if (_substrcmp(*av, "global") == 0) {
28231875bbfeSAndrey V. Elsukov 			action->arg1 = 0;
28241875bbfeSAndrey V. Elsukov 			av++;
28251875bbfeSAndrey V. Elsukov 			break;
28261875bbfeSAndrey V. Elsukov 		} else
2827f94a7fc0SPaolo Pisati 			goto chkarg;
28288b07e49aSJulian Elischer 
28299758b77fSLuigi Rizzo 	case TOK_QUEUE:
28309758b77fSLuigi Rizzo 		action->opcode = O_QUEUE;
283140b1ae9eSGleb Smirnoff 		goto chkarg;
283240b1ae9eSGleb Smirnoff 	case TOK_PIPE:
28339758b77fSLuigi Rizzo 		action->opcode = O_PIPE;
283440b1ae9eSGleb Smirnoff 		goto chkarg;
283540b1ae9eSGleb Smirnoff 	case TOK_SKIPTO:
28369758b77fSLuigi Rizzo 		action->opcode = O_SKIPTO;
283740b1ae9eSGleb Smirnoff 		goto chkarg;
283840b1ae9eSGleb Smirnoff 	case TOK_NETGRAPH:
283940b1ae9eSGleb Smirnoff 		action->opcode = O_NETGRAPH;
284040b1ae9eSGleb Smirnoff 		goto chkarg;
284140b1ae9eSGleb Smirnoff 	case TOK_NGTEE:
284240b1ae9eSGleb Smirnoff 		action->opcode = O_NGTEE;
284340b1ae9eSGleb Smirnoff 		goto chkarg;
28449758b77fSLuigi Rizzo 	case TOK_DIVERT:
284540b1ae9eSGleb Smirnoff 		action->opcode = O_DIVERT;
284640b1ae9eSGleb Smirnoff 		goto chkarg;
28479758b77fSLuigi Rizzo 	case TOK_TEE:
284840b1ae9eSGleb Smirnoff 		action->opcode = O_TEE;
28499527ec6eSAndrey V. Elsukov 		goto chkarg;
28509527ec6eSAndrey V. Elsukov 	case TOK_CALL:
28519527ec6eSAndrey V. Elsukov 		action->opcode = O_CALLRETURN;
285240b1ae9eSGleb Smirnoff chkarg:
2853cc4d3c30SLuigi Rizzo 		if (!av[0])
285440b1ae9eSGleb Smirnoff 			errx(EX_USAGE, "missing argument for %s", *(av - 1));
285540b1ae9eSGleb Smirnoff 		if (isdigit(**av)) {
285640b1ae9eSGleb Smirnoff 			action->arg1 = strtoul(*av, NULL, 10);
285740b1ae9eSGleb Smirnoff 			if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG)
285840b1ae9eSGleb Smirnoff 				errx(EX_DATAERR, "illegal argument for %s",
285940b1ae9eSGleb Smirnoff 				    *(av - 1));
2860be39e0b2SLuigi Rizzo 		} else if (_substrcmp(*av, "tablearg") == 0) {
286140b1ae9eSGleb Smirnoff 			action->arg1 = IP_FW_TABLEARG;
286240b1ae9eSGleb Smirnoff 		} else if (i == TOK_DIVERT || i == TOK_TEE) {
28639758b77fSLuigi Rizzo 			struct servent *s;
28649758b77fSLuigi Rizzo 			setservent(1);
28659758b77fSLuigi Rizzo 			s = getservbyname(av[0], "divert");
28669758b77fSLuigi Rizzo 			if (s != NULL)
28679758b77fSLuigi Rizzo 				action->arg1 = ntohs(s->s_port);
28689758b77fSLuigi Rizzo 			else
28699758b77fSLuigi Rizzo 				errx(EX_DATAERR, "illegal divert/tee port");
287040b1ae9eSGleb Smirnoff 		} else
287140b1ae9eSGleb Smirnoff 			errx(EX_DATAERR, "illegal argument for %s", *(av - 1));
2872cc4d3c30SLuigi Rizzo 		av++;
2873670742a1SGleb Smirnoff 		break;
2874670742a1SGleb Smirnoff 
28759758b77fSLuigi Rizzo 	case TOK_FORWARD: {
28768a006adbSBjoern A. Zeeb 		/*
28778a006adbSBjoern A. Zeeb 		 * Locate the address-port separator (':' or ',').
28788a006adbSBjoern A. Zeeb 		 * Could be one of the following:
28798a006adbSBjoern A. Zeeb 		 *	hostname:port
28808a006adbSBjoern A. Zeeb 		 *	IPv4 a.b.c.d,port
28818a006adbSBjoern A. Zeeb 		 *	IPv4 a.b.c.d:port
28828a006adbSBjoern A. Zeeb 		 *	IPv6 w:x:y::z,port
28838a006adbSBjoern A. Zeeb 		 * The ':' can only be used with hostname and IPv4 address.
28848a006adbSBjoern A. Zeeb 		 * XXX-BZ Should we also support [w:x:y::z]:port?
28858a006adbSBjoern A. Zeeb 		 */
28868a006adbSBjoern A. Zeeb 		struct sockaddr_storage result;
28878a006adbSBjoern A. Zeeb 		struct addrinfo *res;
28889758b77fSLuigi Rizzo 		char *s, *end;
28898a006adbSBjoern A. Zeeb 		int family;
28908a006adbSBjoern A. Zeeb 		u_short port_number;
28919758b77fSLuigi Rizzo 
28929758b77fSLuigi Rizzo 		NEED1("missing forward address[:port]");
28939758b77fSLuigi Rizzo 
28948a006adbSBjoern A. Zeeb 		/*
28958a006adbSBjoern A. Zeeb 		 * locate the address-port separator (':' or ',')
28968a006adbSBjoern A. Zeeb 		 */
28978a006adbSBjoern A. Zeeb 		s = strchr(*av, ',');
28988a006adbSBjoern A. Zeeb 		if (s == NULL) {
28998a006adbSBjoern A. Zeeb 			/* Distinguish between IPv4:port and IPv6 cases. */
29008a006adbSBjoern A. Zeeb 			s = strchr(*av, ':');
29018a006adbSBjoern A. Zeeb 			if (s && strchr(s+1, ':'))
29028a006adbSBjoern A. Zeeb 				s = NULL; /* no port */
29038a006adbSBjoern A. Zeeb 		}
29048a006adbSBjoern A. Zeeb 
29058a006adbSBjoern A. Zeeb 		port_number = 0;
29068a006adbSBjoern A. Zeeb 		if (s != NULL) {
29078a006adbSBjoern A. Zeeb 			/* Terminate host portion and set s to start of port. */
29088a006adbSBjoern A. Zeeb 			*(s++) = '\0';
29098a006adbSBjoern A. Zeeb 			i = strtoport(s, &end, 0 /* base */, 0 /* proto */);
29108a006adbSBjoern A. Zeeb 			if (s == end)
29118a006adbSBjoern A. Zeeb 				errx(EX_DATAERR,
29128a006adbSBjoern A. Zeeb 				    "illegal forwarding port ``%s''", s);
29138a006adbSBjoern A. Zeeb 			port_number = (u_short)i;
29148a006adbSBjoern A. Zeeb 		}
29158a006adbSBjoern A. Zeeb 
29168a006adbSBjoern A. Zeeb 		if (_substrcmp(*av, "tablearg") == 0) {
29178a006adbSBjoern A. Zeeb 			family = PF_INET;
29188a006adbSBjoern A. Zeeb 			((struct sockaddr_in*)&result)->sin_addr.s_addr =
29198a006adbSBjoern A. Zeeb 			    INADDR_ANY;
29208a006adbSBjoern A. Zeeb 		} else {
29218a006adbSBjoern A. Zeeb 			/*
29228a006adbSBjoern A. Zeeb 			 * Resolve the host name or address to a family and a
29234b85a12fSUlrich Spörlein 			 * network representation of the address.
29248a006adbSBjoern A. Zeeb 			 */
29258a006adbSBjoern A. Zeeb 			if (getaddrinfo(*av, NULL, NULL, &res))
29268a006adbSBjoern A. Zeeb 				errx(EX_DATAERR, NULL);
29278a006adbSBjoern A. Zeeb 			/* Just use the first host in the answer. */
29288a006adbSBjoern A. Zeeb 			family = res->ai_family;
29298a006adbSBjoern A. Zeeb 			memcpy(&result, res->ai_addr, res->ai_addrlen);
29308a006adbSBjoern A. Zeeb 			freeaddrinfo(res);
29318a006adbSBjoern A. Zeeb 		}
29328a006adbSBjoern A. Zeeb 
29338a006adbSBjoern A. Zeeb  		if (family == PF_INET) {
29348a006adbSBjoern A. Zeeb 			ipfw_insn_sa *p = (ipfw_insn_sa *)action;
29358a006adbSBjoern A. Zeeb 
29369758b77fSLuigi Rizzo 			action->opcode = O_FORWARD_IP;
29379758b77fSLuigi Rizzo 			action->len = F_INSN_SIZE(ipfw_insn_sa);
29389758b77fSLuigi Rizzo 
2939a52e28c7SLuigi Rizzo 			/*
2940a52e28c7SLuigi Rizzo 			 * In the kernel we assume AF_INET and use only
29416e47ca1bSLuigi Rizzo 			 * sin_port and sin_addr. Remember to set sin_len as
29426e47ca1bSLuigi Rizzo 			 * the routing code seems to use it too.
2943a52e28c7SLuigi Rizzo 			 */
29446e47ca1bSLuigi Rizzo 			p->sa.sin_len = sizeof(struct sockaddr_in);
29458a006adbSBjoern A. Zeeb 			p->sa.sin_family = AF_INET;
29468a006adbSBjoern A. Zeeb 			p->sa.sin_port = port_number;
29478a006adbSBjoern A. Zeeb 			p->sa.sin_addr.s_addr =
29488a006adbSBjoern A. Zeeb 			     ((struct sockaddr_in *)&result)->sin_addr.s_addr;
29498a006adbSBjoern A. Zeeb 		} else if (family == PF_INET6) {
29508a006adbSBjoern A. Zeeb 			ipfw_insn_sa6 *p = (ipfw_insn_sa6 *)action;
29518a006adbSBjoern A. Zeeb 
29528a006adbSBjoern A. Zeeb 			action->opcode = O_FORWARD_IP6;
29538a006adbSBjoern A. Zeeb 			action->len = F_INSN_SIZE(ipfw_insn_sa6);
29548a006adbSBjoern A. Zeeb 
29558a006adbSBjoern A. Zeeb 			p->sa.sin6_len = sizeof(struct sockaddr_in6);
29568a006adbSBjoern A. Zeeb 			p->sa.sin6_family = AF_INET6;
29578a006adbSBjoern A. Zeeb 			p->sa.sin6_port = port_number;
29588a006adbSBjoern A. Zeeb 			p->sa.sin6_flowinfo = 0;
29598a006adbSBjoern A. Zeeb 			p->sa.sin6_scope_id = 0;
29608a006adbSBjoern A. Zeeb 			/* No table support for v6 yet. */
29618a006adbSBjoern A. Zeeb 			bcopy(&((struct sockaddr_in6*)&result)->sin6_addr,
29628a006adbSBjoern A. Zeeb 			    &p->sa.sin6_addr, sizeof(p->sa.sin6_addr));
29638a006adbSBjoern A. Zeeb 		} else {
29648a006adbSBjoern A. Zeeb 			errx(EX_DATAERR, "Invalid address family in forward action");
29659758b77fSLuigi Rizzo 		}
2966cc4d3c30SLuigi Rizzo 		av++;
29679758b77fSLuigi Rizzo 		break;
2968c487be96SJulian Elischer 	    }
296962ff38aeSLuigi Rizzo 	case TOK_COMMENT:
297062ff38aeSLuigi Rizzo 		/* pretend it is a 'count' rule followed by the comment */
297162ff38aeSLuigi Rizzo 		action->opcode = O_COUNT;
2972cc4d3c30SLuigi Rizzo 		av--;		/* go back... */
297362ff38aeSLuigi Rizzo 		break;
297462ff38aeSLuigi Rizzo 
29758b07e49aSJulian Elischer 	case TOK_SETFIB:
29768b07e49aSJulian Elischer 	    {
29778b07e49aSJulian Elischer 		int numfibs;
297805b0fdacSJulian Elischer 		size_t intsize = sizeof(int);
29798b07e49aSJulian Elischer 
29808b07e49aSJulian Elischer 		action->opcode = O_SETFIB;
29818b07e49aSJulian Elischer 		NEED1("missing fib number");
298241b60837SAndrey V. Elsukov 		if (_substrcmp(*av, "tablearg") == 0) {
298341b60837SAndrey V. Elsukov 			action->arg1 = IP_FW_TABLEARG;
298441b60837SAndrey V. Elsukov 		} else {
29858b07e49aSJulian Elischer 		        action->arg1 = strtoul(*av, NULL, 10);
298641b60837SAndrey V. Elsukov 			if (sysctlbyname("net.fibs", &numfibs, &intsize,
298741b60837SAndrey V. Elsukov 			    NULL, 0) == -1)
29888b07e49aSJulian Elischer 				errx(EX_DATAERR, "fibs not suported.\n");
29898b07e49aSJulian Elischer 			if (action->arg1 >= numfibs)  /* Temporary */
29908b07e49aSJulian Elischer 				errx(EX_DATAERR, "fib too large.\n");
299141b60837SAndrey V. Elsukov 		}
2992cc4d3c30SLuigi Rizzo 		av++;
29938b07e49aSJulian Elischer 		break;
29948b07e49aSJulian Elischer 	    }
29958b07e49aSJulian Elischer 
2996eb2e4119SPaolo Pisati 	case TOK_REASS:
2997eb2e4119SPaolo Pisati 		action->opcode = O_REASS;
2998eb2e4119SPaolo Pisati 		break;
2999eb2e4119SPaolo Pisati 
30009527ec6eSAndrey V. Elsukov 	case TOK_RETURN:
30019527ec6eSAndrey V. Elsukov 		fill_cmd(action, O_CALLRETURN, F_NOT, 0);
30029527ec6eSAndrey V. Elsukov 		break;
30039527ec6eSAndrey V. Elsukov 
30049758b77fSLuigi Rizzo 	default:
3005e706181bSLuigi Rizzo 		errx(EX_DATAERR, "invalid action %s\n", av[-1]);
30069758b77fSLuigi Rizzo 	}
30079758b77fSLuigi Rizzo 	action = next_cmd(action);
30089758b77fSLuigi Rizzo 
30099758b77fSLuigi Rizzo 	/*
3010974dfe30SBrian Feldman 	 * [altq queuename] -- altq tag, optional
30119758b77fSLuigi Rizzo 	 * [log [logamount N]]	-- log, optional
30129758b77fSLuigi Rizzo 	 *
3013974dfe30SBrian Feldman 	 * If they exist, it go first in the cmdbuf, but then it is
30149758b77fSLuigi Rizzo 	 * skipped in the copy section to the end of the buffer.
30159758b77fSLuigi Rizzo 	 */
3016cc4d3c30SLuigi Rizzo 	while (av[0] != NULL && (i = match_token(rule_action_params, *av)) != -1) {
3017cc4d3c30SLuigi Rizzo 		av++;
3018974dfe30SBrian Feldman 		switch (i) {
3019974dfe30SBrian Feldman 		case TOK_LOG:
3020974dfe30SBrian Feldman 		    {
30219758b77fSLuigi Rizzo 			ipfw_insn_log *c = (ipfw_insn_log *)cmd;
302262ff38aeSLuigi Rizzo 			int l;
30239758b77fSLuigi Rizzo 
3024974dfe30SBrian Feldman 			if (have_log)
3025974dfe30SBrian Feldman 				errx(EX_DATAERR,
3026974dfe30SBrian Feldman 				    "log cannot be specified more than once");
3027974dfe30SBrian Feldman 			have_log = (ipfw_insn *)c;
30289758b77fSLuigi Rizzo 			cmd->len = F_INSN_SIZE(ipfw_insn_log);
30299758b77fSLuigi Rizzo 			cmd->opcode = O_LOG;
3030cc4d3c30SLuigi Rizzo 			if (av[0] && _substrcmp(*av, "logamount") == 0) {
3031cc4d3c30SLuigi Rizzo 				av++;
30329758b77fSLuigi Rizzo 				NEED1("logamount requires argument");
303362ff38aeSLuigi Rizzo 				l = atoi(*av);
303462ff38aeSLuigi Rizzo 				if (l < 0)
3035974dfe30SBrian Feldman 					errx(EX_DATAERR,
3036974dfe30SBrian Feldman 					    "logamount must be positive");
303762ff38aeSLuigi Rizzo 				c->max_log = l;
3038cc4d3c30SLuigi Rizzo 				av++;
30399ec4f2e1SMaxim Konovalov 			} else {
30409ec4f2e1SMaxim Konovalov 				len = sizeof(c->max_log);
30419ec4f2e1SMaxim Konovalov 				if (sysctlbyname("net.inet.ip.fw.verbose_limit",
30429ec4f2e1SMaxim Konovalov 				    &c->max_log, &len, NULL, 0) == -1)
30439ec4f2e1SMaxim Konovalov 					errx(1, "sysctlbyname(\"%s\")",
30449ec4f2e1SMaxim Konovalov 					    "net.inet.ip.fw.verbose_limit");
30459758b77fSLuigi Rizzo 			}
3046974dfe30SBrian Feldman 		    }
3047974dfe30SBrian Feldman 			break;
3048974dfe30SBrian Feldman 
3049cc4d3c30SLuigi Rizzo #ifndef NO_ALTQ
3050974dfe30SBrian Feldman 		case TOK_ALTQ:
3051974dfe30SBrian Feldman 		    {
3052974dfe30SBrian Feldman 			ipfw_insn_altq *a = (ipfw_insn_altq *)cmd;
3053974dfe30SBrian Feldman 
3054974dfe30SBrian Feldman 			NEED1("missing altq queue name");
3055974dfe30SBrian Feldman 			if (have_altq)
3056974dfe30SBrian Feldman 				errx(EX_DATAERR,
3057974dfe30SBrian Feldman 				    "altq cannot be specified more than once");
3058974dfe30SBrian Feldman 			have_altq = (ipfw_insn *)a;
3059974dfe30SBrian Feldman 			cmd->len = F_INSN_SIZE(ipfw_insn_altq);
3060974dfe30SBrian Feldman 			cmd->opcode = O_ALTQ;
306123c608c8SLuigi Rizzo 			a->qid = altq_name_to_qid(*av);
3062cc4d3c30SLuigi Rizzo 			av++;
3063974dfe30SBrian Feldman 		    }
3064974dfe30SBrian Feldman 			break;
3065cc4d3c30SLuigi Rizzo #endif
3066974dfe30SBrian Feldman 
30676a7d5cb6SOleg Bulyzhin 		case TOK_TAG:
3068254c4725SOleg Bulyzhin 		case TOK_UNTAG: {
3069254c4725SOleg Bulyzhin 			uint16_t tag;
3070254c4725SOleg Bulyzhin 
30716a7d5cb6SOleg Bulyzhin 			if (have_tag)
3072254c4725SOleg Bulyzhin 				errx(EX_USAGE, "tag and untag cannot be "
3073254c4725SOleg Bulyzhin 				    "specified more than once");
3074b87ce554SLuigi Rizzo 			GET_UINT_ARG(tag, IPFW_ARG_MIN, IPFW_ARG_MAX, i,
3075759dd6f7SRoman Kurakin 			   rule_action_params);
30766a7d5cb6SOleg Bulyzhin 			have_tag = cmd;
3077254c4725SOleg Bulyzhin 			fill_cmd(cmd, O_TAG, (i == TOK_TAG) ? 0: F_NOT, tag);
3078cc4d3c30SLuigi Rizzo 			av++;
30796a7d5cb6SOleg Bulyzhin 			break;
3080254c4725SOleg Bulyzhin 		}
30816a7d5cb6SOleg Bulyzhin 
3082974dfe30SBrian Feldman 		default:
3083974dfe30SBrian Feldman 			abort();
3084974dfe30SBrian Feldman 		}
30859758b77fSLuigi Rizzo 		cmd = next_cmd(cmd);
30869758b77fSLuigi Rizzo 	}
30879758b77fSLuigi Rizzo 
308852bc23abSLuigi Rizzo 	if (have_state)	/* must be a check-state, we are done */
30899758b77fSLuigi Rizzo 		goto done;
30909758b77fSLuigi Rizzo 
30919758b77fSLuigi Rizzo #define OR_START(target)					\
3092cc4d3c30SLuigi Rizzo 	if (av[0] && (*av[0] == '(' || *av[0] == '{')) { 	\
30939758b77fSLuigi Rizzo 		if (open_par)					\
30949758b77fSLuigi Rizzo 			errx(EX_USAGE, "nested \"(\" not allowed\n"); \
30958ed2d749SLuigi Rizzo 		prev = NULL;					\
30969758b77fSLuigi Rizzo 		open_par = 1;					\
30979758b77fSLuigi Rizzo 		if ( (av[0])[1] == '\0') {			\
3098cc4d3c30SLuigi Rizzo 			av++;					\
30999758b77fSLuigi Rizzo 		} else						\
31009758b77fSLuigi Rizzo 			(*av)++;				\
31019758b77fSLuigi Rizzo 	}							\
31029758b77fSLuigi Rizzo 	target:							\
31039758b77fSLuigi Rizzo 
31049758b77fSLuigi Rizzo 
31059758b77fSLuigi Rizzo #define	CLOSE_PAR						\
31069758b77fSLuigi Rizzo 	if (open_par) {						\
3107cc4d3c30SLuigi Rizzo 		if (av[0] && (					\
310801750186SBrooks Davis 		    strcmp(*av, ")") == 0 ||			\
310901750186SBrooks Davis 		    strcmp(*av, "}") == 0)) {			\
31108ed2d749SLuigi Rizzo 			prev = NULL;				\
31119758b77fSLuigi Rizzo 			open_par = 0;				\
3112cc4d3c30SLuigi Rizzo 			av++;					\
31139758b77fSLuigi Rizzo 		} else						\
31149758b77fSLuigi Rizzo 			errx(EX_USAGE, "missing \")\"\n");	\
31159758b77fSLuigi Rizzo 	}
31169758b77fSLuigi Rizzo 
31179758b77fSLuigi Rizzo #define NOT_BLOCK						\
3118cc4d3c30SLuigi Rizzo 	if (av[0] && _substrcmp(*av, "not") == 0) {		\
31199758b77fSLuigi Rizzo 		if (cmd->len & F_NOT)				\
31209758b77fSLuigi Rizzo 			errx(EX_USAGE, "double \"not\" not allowed\n"); \
31219758b77fSLuigi Rizzo 		cmd->len |= F_NOT;				\
3122cc4d3c30SLuigi Rizzo 		av++;						\
31239758b77fSLuigi Rizzo 	}
31249758b77fSLuigi Rizzo 
31259758b77fSLuigi Rizzo #define OR_BLOCK(target)					\
3126cc4d3c30SLuigi Rizzo 	if (av[0] && _substrcmp(*av, "or") == 0) {		\
31279758b77fSLuigi Rizzo 		if (prev == NULL || open_par == 0)		\
31289758b77fSLuigi Rizzo 			errx(EX_DATAERR, "invalid OR block");	\
31299758b77fSLuigi Rizzo 		prev->len |= F_OR;				\
3130cc4d3c30SLuigi Rizzo 		av++;					\
31319758b77fSLuigi Rizzo 		goto target;					\
31329758b77fSLuigi Rizzo 	}							\
31339758b77fSLuigi Rizzo 	CLOSE_PAR;
31349758b77fSLuigi Rizzo 
3135e706181bSLuigi Rizzo 	first_cmd = cmd;
31365a155b40SLuigi Rizzo 
31375a155b40SLuigi Rizzo #if 0
3138e706181bSLuigi Rizzo 	/*
3139e706181bSLuigi Rizzo 	 * MAC addresses, optional.
3140e706181bSLuigi Rizzo 	 * If we have this, we skip the part "proto from src to dst"
3141e706181bSLuigi Rizzo 	 * and jump straight to the option parsing.
3142e706181bSLuigi Rizzo 	 */
3143e706181bSLuigi Rizzo 	NOT_BLOCK;
3144e706181bSLuigi Rizzo 	NEED1("missing protocol");
314501750186SBrooks Davis 	if (_substrcmp(*av, "MAC") == 0 ||
314601750186SBrooks Davis 	    _substrcmp(*av, "mac") == 0) {
3147cc4d3c30SLuigi Rizzo 		av++;			/* the "MAC" keyword */
3148cc4d3c30SLuigi Rizzo 		add_mac(cmd, av);	/* exits in case of errors */
3149e706181bSLuigi Rizzo 		cmd = next_cmd(cmd);
3150cc4d3c30SLuigi Rizzo 		av += 2;		/* dst-mac and src-mac */
3151e706181bSLuigi Rizzo 		NOT_BLOCK;
3152e706181bSLuigi Rizzo 		NEED1("missing mac type");
3153cc4d3c30SLuigi Rizzo 		if (add_mactype(cmd, av[0]))
3154e706181bSLuigi Rizzo 			cmd = next_cmd(cmd);
3155cc4d3c30SLuigi Rizzo 		av++;			/* any or mac-type */
3156e706181bSLuigi Rizzo 		goto read_options;
3157e706181bSLuigi Rizzo 	}
31585a155b40SLuigi Rizzo #endif
3159e706181bSLuigi Rizzo 
31609758b77fSLuigi Rizzo 	/*
31619758b77fSLuigi Rizzo 	 * protocol, mandatory
31629758b77fSLuigi Rizzo 	 */
31639758b77fSLuigi Rizzo     OR_START(get_proto);
31649758b77fSLuigi Rizzo 	NOT_BLOCK;
31659758b77fSLuigi Rizzo 	NEED1("missing protocol");
316636c263ccSHajimu UMEMOTO 	if (add_proto_compat(cmd, *av, &proto)) {
3167cc4d3c30SLuigi Rizzo 		av++;
3168b730879fSMax Laier 		if (F_LEN(cmd) != 0) {
3169e706181bSLuigi Rizzo 			prev = cmd;
31709758b77fSLuigi Rizzo 			cmd = next_cmd(cmd);
3171e706181bSLuigi Rizzo 		}
31725a155b40SLuigi Rizzo 	} else if (first_cmd != cmd) {
3173c82b8dceSMaxim Konovalov 		errx(EX_DATAERR, "invalid protocol ``%s''", *av);
31745a155b40SLuigi Rizzo 	} else
31755a155b40SLuigi Rizzo 		goto read_options;
31769758b77fSLuigi Rizzo     OR_BLOCK(get_proto);
31779758b77fSLuigi Rizzo 
31789758b77fSLuigi Rizzo 	/*
3179e706181bSLuigi Rizzo 	 * "from", mandatory
31809758b77fSLuigi Rizzo 	 */
3181cc4d3c30SLuigi Rizzo 	if ((av[0] == NULL) || _substrcmp(*av, "from") != 0)
31829758b77fSLuigi Rizzo 		errx(EX_USAGE, "missing ``from''");
3183cc4d3c30SLuigi Rizzo 	av++;
31849758b77fSLuigi Rizzo 
31859758b77fSLuigi Rizzo 	/*
31869758b77fSLuigi Rizzo 	 * source IP, mandatory
31879758b77fSLuigi Rizzo 	 */
31889758b77fSLuigi Rizzo     OR_START(source_ip);
31899758b77fSLuigi Rizzo 	NOT_BLOCK;	/* optional "not" */
31909758b77fSLuigi Rizzo 	NEED1("missing source address");
31918195404bSBrooks Davis 	if (add_src(cmd, *av, proto)) {
3192cc4d3c30SLuigi Rizzo 		av++;
3193e706181bSLuigi Rizzo 		if (F_LEN(cmd) != 0) {	/* ! any */
3194e706181bSLuigi Rizzo 			prev = cmd;
31959758b77fSLuigi Rizzo 			cmd = next_cmd(cmd);
3196e706181bSLuigi Rizzo 		}
31978195404bSBrooks Davis 	} else
31988195404bSBrooks Davis 		errx(EX_USAGE, "bad source address %s", *av);
31999758b77fSLuigi Rizzo     OR_BLOCK(source_ip);
32009758b77fSLuigi Rizzo 
32019758b77fSLuigi Rizzo 	/*
32029758b77fSLuigi Rizzo 	 * source ports, optional
32039758b77fSLuigi Rizzo 	 */
32049758b77fSLuigi Rizzo 	NOT_BLOCK;	/* optional "not" */
3205cc4d3c30SLuigi Rizzo 	if ( av[0] != NULL ) {
320601750186SBrooks Davis 		if (_substrcmp(*av, "any") == 0 ||
3207e706181bSLuigi Rizzo 		    add_ports(cmd, *av, proto, O_IP_SRCPORT)) {
3208cc4d3c30SLuigi Rizzo 			av++;
3209e706181bSLuigi Rizzo 			if (F_LEN(cmd) != 0)
32109758b77fSLuigi Rizzo 				cmd = next_cmd(cmd);
32119758b77fSLuigi Rizzo 		}
32128ed2d749SLuigi Rizzo 	}
32139758b77fSLuigi Rizzo 
32149758b77fSLuigi Rizzo 	/*
3215e706181bSLuigi Rizzo 	 * "to", mandatory
32169758b77fSLuigi Rizzo 	 */
3217cc4d3c30SLuigi Rizzo 	if ( (av[0] == NULL) || _substrcmp(*av, "to") != 0 )
32189758b77fSLuigi Rizzo 		errx(EX_USAGE, "missing ``to''");
3219cc4d3c30SLuigi Rizzo 	av++;
32209758b77fSLuigi Rizzo 
32219758b77fSLuigi Rizzo 	/*
32229758b77fSLuigi Rizzo 	 * destination, mandatory
32239758b77fSLuigi Rizzo 	 */
32249758b77fSLuigi Rizzo     OR_START(dest_ip);
32259758b77fSLuigi Rizzo 	NOT_BLOCK;	/* optional "not" */
32269758b77fSLuigi Rizzo 	NEED1("missing dst address");
32278195404bSBrooks Davis 	if (add_dst(cmd, *av, proto)) {
3228cc4d3c30SLuigi Rizzo 		av++;
3229e706181bSLuigi Rizzo 		if (F_LEN(cmd) != 0) {	/* ! any */
32309758b77fSLuigi Rizzo 			prev = cmd;
32319758b77fSLuigi Rizzo 			cmd = next_cmd(cmd);
3232e706181bSLuigi Rizzo 		}
32338195404bSBrooks Davis 	} else
32348195404bSBrooks Davis 		errx( EX_USAGE, "bad destination address %s", *av);
32359758b77fSLuigi Rizzo     OR_BLOCK(dest_ip);
32369758b77fSLuigi Rizzo 
32379758b77fSLuigi Rizzo 	/*
32389758b77fSLuigi Rizzo 	 * dest. ports, optional
32399758b77fSLuigi Rizzo 	 */
32409758b77fSLuigi Rizzo 	NOT_BLOCK;	/* optional "not" */
3241cc4d3c30SLuigi Rizzo 	if (av[0]) {
324201750186SBrooks Davis 		if (_substrcmp(*av, "any") == 0 ||
3243e706181bSLuigi Rizzo 		    add_ports(cmd, *av, proto, O_IP_DSTPORT)) {
3244cc4d3c30SLuigi Rizzo 			av++;
3245e706181bSLuigi Rizzo 			if (F_LEN(cmd) != 0)
3246e706181bSLuigi Rizzo 				cmd = next_cmd(cmd);
32479758b77fSLuigi Rizzo 		}
32488ed2d749SLuigi Rizzo 	}
32499758b77fSLuigi Rizzo 
32509758b77fSLuigi Rizzo read_options:
3251cc4d3c30SLuigi Rizzo 	if (av[0] && first_cmd == cmd) {
3252e706181bSLuigi Rizzo 		/*
3253e706181bSLuigi Rizzo 		 * nothing specified so far, store in the rule to ease
3254e706181bSLuigi Rizzo 		 * printout later.
3255e706181bSLuigi Rizzo 		 */
3256e706181bSLuigi Rizzo 		 rule->_pad = 1;
3257e706181bSLuigi Rizzo 	}
32589758b77fSLuigi Rizzo 	prev = NULL;
3259cc4d3c30SLuigi Rizzo 	while ( av[0] != NULL ) {
32608ed2d749SLuigi Rizzo 		char *s;
32618ed2d749SLuigi Rizzo 		ipfw_insn_u32 *cmd32;	/* alias for cmd */
32628ed2d749SLuigi Rizzo 
32638ed2d749SLuigi Rizzo 		s = *av;
32648ed2d749SLuigi Rizzo 		cmd32 = (ipfw_insn_u32 *)cmd;
32659758b77fSLuigi Rizzo 
32669758b77fSLuigi Rizzo 		if (*s == '!') {	/* alternate syntax for NOT */
32679758b77fSLuigi Rizzo 			if (cmd->len & F_NOT)
32689758b77fSLuigi Rizzo 				errx(EX_USAGE, "double \"not\" not allowed\n");
32699758b77fSLuigi Rizzo 			cmd->len = F_NOT;
32709758b77fSLuigi Rizzo 			s++;
32719758b77fSLuigi Rizzo 		}
32729758b77fSLuigi Rizzo 		i = match_token(rule_options, s);
3273cc4d3c30SLuigi Rizzo 		av++;
32749758b77fSLuigi Rizzo 		switch(i) {
32759758b77fSLuigi Rizzo 		case TOK_NOT:
32769758b77fSLuigi Rizzo 			if (cmd->len & F_NOT)
32779758b77fSLuigi Rizzo 				errx(EX_USAGE, "double \"not\" not allowed\n");
32789758b77fSLuigi Rizzo 			cmd->len = F_NOT;
32799758b77fSLuigi Rizzo 			break;
32809758b77fSLuigi Rizzo 
32819758b77fSLuigi Rizzo 		case TOK_OR:
32828ed2d749SLuigi Rizzo 			if (open_par == 0 || prev == NULL)
32839758b77fSLuigi Rizzo 				errx(EX_USAGE, "invalid \"or\" block\n");
32849758b77fSLuigi Rizzo 			prev->len |= F_OR;
32859758b77fSLuigi Rizzo 			break;
32869758b77fSLuigi Rizzo 
32878ed2d749SLuigi Rizzo 		case TOK_STARTBRACE:
32888ed2d749SLuigi Rizzo 			if (open_par)
32898ed2d749SLuigi Rizzo 				errx(EX_USAGE, "+nested \"(\" not allowed\n");
32908ed2d749SLuigi Rizzo 			open_par = 1;
32918ed2d749SLuigi Rizzo 			break;
32928ed2d749SLuigi Rizzo 
32938ed2d749SLuigi Rizzo 		case TOK_ENDBRACE:
32948ed2d749SLuigi Rizzo 			if (!open_par)
32958ed2d749SLuigi Rizzo 				errx(EX_USAGE, "+missing \")\"\n");
32968ed2d749SLuigi Rizzo 			open_par = 0;
3297e706181bSLuigi Rizzo 			prev = NULL;
32988ed2d749SLuigi Rizzo 			break;
32998ed2d749SLuigi Rizzo 
33009758b77fSLuigi Rizzo 		case TOK_IN:
33019758b77fSLuigi Rizzo 			fill_cmd(cmd, O_IN, 0, 0);
33029758b77fSLuigi Rizzo 			break;
33039758b77fSLuigi Rizzo 
33049758b77fSLuigi Rizzo 		case TOK_OUT:
33059758b77fSLuigi Rizzo 			cmd->len ^= F_NOT; /* toggle F_NOT */
33069758b77fSLuigi Rizzo 			fill_cmd(cmd, O_IN, 0, 0);
33079758b77fSLuigi Rizzo 			break;
33089758b77fSLuigi Rizzo 
33096daf7ebdSBrian Feldman 		case TOK_DIVERTED:
33106daf7ebdSBrian Feldman 			fill_cmd(cmd, O_DIVERTED, 0, 3);
33116daf7ebdSBrian Feldman 			break;
33126daf7ebdSBrian Feldman 
33136daf7ebdSBrian Feldman 		case TOK_DIVERTEDLOOPBACK:
33146daf7ebdSBrian Feldman 			fill_cmd(cmd, O_DIVERTED, 0, 1);
33156daf7ebdSBrian Feldman 			break;
33166daf7ebdSBrian Feldman 
33176daf7ebdSBrian Feldman 		case TOK_DIVERTEDOUTPUT:
33186daf7ebdSBrian Feldman 			fill_cmd(cmd, O_DIVERTED, 0, 2);
33196daf7ebdSBrian Feldman 			break;
33206daf7ebdSBrian Feldman 
33219758b77fSLuigi Rizzo 		case TOK_FRAG:
33229758b77fSLuigi Rizzo 			fill_cmd(cmd, O_FRAG, 0, 0);
33239758b77fSLuigi Rizzo 			break;
33249758b77fSLuigi Rizzo 
33259758b77fSLuigi Rizzo 		case TOK_LAYER2:
33269758b77fSLuigi Rizzo 			fill_cmd(cmd, O_LAYER2, 0, 0);
33279758b77fSLuigi Rizzo 			break;
33289758b77fSLuigi Rizzo 
33299758b77fSLuigi Rizzo 		case TOK_XMIT:
33309758b77fSLuigi Rizzo 		case TOK_RECV:
33319758b77fSLuigi Rizzo 		case TOK_VIA:
33329758b77fSLuigi Rizzo 			NEED1("recv, xmit, via require interface name"
33339758b77fSLuigi Rizzo 				" or address");
33349758b77fSLuigi Rizzo 			fill_iface((ipfw_insn_if *)cmd, av[0]);
3335cc4d3c30SLuigi Rizzo 			av++;
33369758b77fSLuigi Rizzo 			if (F_LEN(cmd) == 0)	/* not a valid address */
33379758b77fSLuigi Rizzo 				break;
33389758b77fSLuigi Rizzo 			if (i == TOK_XMIT)
33399758b77fSLuigi Rizzo 				cmd->opcode = O_XMIT;
33409758b77fSLuigi Rizzo 			else if (i == TOK_RECV)
33419758b77fSLuigi Rizzo 				cmd->opcode = O_RECV;
33429758b77fSLuigi Rizzo 			else if (i == TOK_VIA)
33439758b77fSLuigi Rizzo 				cmd->opcode = O_VIA;
33449758b77fSLuigi Rizzo 			break;
33459758b77fSLuigi Rizzo 
33465e43aef8SLuigi Rizzo 		case TOK_ICMPTYPES:
33475e43aef8SLuigi Rizzo 			NEED1("icmptypes requires list of types");
33485e43aef8SLuigi Rizzo 			fill_icmptypes((ipfw_insn_u32 *)cmd, *av);
3349cc4d3c30SLuigi Rizzo 			av++;
33505e43aef8SLuigi Rizzo 			break;
33515e43aef8SLuigi Rizzo 
33528195404bSBrooks Davis 		case TOK_ICMP6TYPES:
33538195404bSBrooks Davis 			NEED1("icmptypes requires list of types");
33548195404bSBrooks Davis 			fill_icmp6types((ipfw_insn_icmp6 *)cmd, *av);
3355cc4d3c30SLuigi Rizzo 			av++;
33568195404bSBrooks Davis 			break;
33578195404bSBrooks Davis 
33589758b77fSLuigi Rizzo 		case TOK_IPTTL:
33599758b77fSLuigi Rizzo 			NEED1("ipttl requires TTL");
336044c884e1SLuigi Rizzo 			if (strpbrk(*av, "-,")) {
336144c884e1SLuigi Rizzo 			    if (!add_ports(cmd, *av, 0, O_IPTTL))
336244c884e1SLuigi Rizzo 				errx(EX_DATAERR, "invalid ipttl %s", *av);
336344c884e1SLuigi Rizzo 			} else
33649758b77fSLuigi Rizzo 			    fill_cmd(cmd, O_IPTTL, 0, strtoul(*av, NULL, 0));
3365cc4d3c30SLuigi Rizzo 			av++;
33669758b77fSLuigi Rizzo 			break;
33679758b77fSLuigi Rizzo 
33689758b77fSLuigi Rizzo 		case TOK_IPID:
336944c884e1SLuigi Rizzo 			NEED1("ipid requires id");
337044c884e1SLuigi Rizzo 			if (strpbrk(*av, "-,")) {
337144c884e1SLuigi Rizzo 			    if (!add_ports(cmd, *av, 0, O_IPID))
337244c884e1SLuigi Rizzo 				errx(EX_DATAERR, "invalid ipid %s", *av);
337344c884e1SLuigi Rizzo 			} else
33749758b77fSLuigi Rizzo 			    fill_cmd(cmd, O_IPID, 0, strtoul(*av, NULL, 0));
3375cc4d3c30SLuigi Rizzo 			av++;
33769758b77fSLuigi Rizzo 			break;
33779758b77fSLuigi Rizzo 
33789758b77fSLuigi Rizzo 		case TOK_IPLEN:
33799758b77fSLuigi Rizzo 			NEED1("iplen requires length");
338044c884e1SLuigi Rizzo 			if (strpbrk(*av, "-,")) {
338144c884e1SLuigi Rizzo 			    if (!add_ports(cmd, *av, 0, O_IPLEN))
338244c884e1SLuigi Rizzo 				errx(EX_DATAERR, "invalid ip len %s", *av);
338344c884e1SLuigi Rizzo 			} else
33849758b77fSLuigi Rizzo 			    fill_cmd(cmd, O_IPLEN, 0, strtoul(*av, NULL, 0));
3385cc4d3c30SLuigi Rizzo 			av++;
33869758b77fSLuigi Rizzo 			break;
33879758b77fSLuigi Rizzo 
33889758b77fSLuigi Rizzo 		case TOK_IPVER:
33899758b77fSLuigi Rizzo 			NEED1("ipver requires version");
33909758b77fSLuigi Rizzo 			fill_cmd(cmd, O_IPVER, 0, strtoul(*av, NULL, 0));
3391cc4d3c30SLuigi Rizzo 			av++;
33929758b77fSLuigi Rizzo 			break;
33939758b77fSLuigi Rizzo 
33945e43aef8SLuigi Rizzo 		case TOK_IPPRECEDENCE:
33955e43aef8SLuigi Rizzo 			NEED1("ipprecedence requires value");
33965e43aef8SLuigi Rizzo 			fill_cmd(cmd, O_IPPRECEDENCE, 0,
33975e43aef8SLuigi Rizzo 			    (strtoul(*av, NULL, 0) & 7) << 5);
3398cc4d3c30SLuigi Rizzo 			av++;
33995e43aef8SLuigi Rizzo 			break;
34005e43aef8SLuigi Rizzo 
34019758b77fSLuigi Rizzo 		case TOK_IPOPTS:
34029758b77fSLuigi Rizzo 			NEED1("missing argument for ipoptions");
340352bc23abSLuigi Rizzo 			fill_flags(cmd, O_IPOPT, f_ipopts, *av);
3404cc4d3c30SLuigi Rizzo 			av++;
34059758b77fSLuigi Rizzo 			break;
34069758b77fSLuigi Rizzo 
34075e43aef8SLuigi Rizzo 		case TOK_IPTOS:
34085e43aef8SLuigi Rizzo 			NEED1("missing argument for iptos");
340952bc23abSLuigi Rizzo 			fill_flags(cmd, O_IPTOS, f_iptos, *av);
3410cc4d3c30SLuigi Rizzo 			av++;
34115e43aef8SLuigi Rizzo 			break;
34125e43aef8SLuigi Rizzo 
34139758b77fSLuigi Rizzo 		case TOK_UID:
34149758b77fSLuigi Rizzo 			NEED1("uid requires argument");
34159758b77fSLuigi Rizzo 		    {
34169758b77fSLuigi Rizzo 			char *end;
34179758b77fSLuigi Rizzo 			uid_t uid;
34189758b77fSLuigi Rizzo 			struct passwd *pwd;
34199758b77fSLuigi Rizzo 
34209758b77fSLuigi Rizzo 			cmd->opcode = O_UID;
34219758b77fSLuigi Rizzo 			uid = strtoul(*av, &end, 0);
34229758b77fSLuigi Rizzo 			pwd = (*end == '\0') ? getpwuid(uid) : getpwnam(*av);
34239758b77fSLuigi Rizzo 			if (pwd == NULL)
34249758b77fSLuigi Rizzo 				errx(EX_DATAERR, "uid \"%s\" nonexistent", *av);
3425d6abaeebSMaxim Konovalov 			cmd32->d[0] = pwd->pw_uid;
34263a27af0dSChristian S.J. Peron 			cmd->len |= F_INSN_SIZE(ipfw_insn_u32);
3427cc4d3c30SLuigi Rizzo 			av++;
34289758b77fSLuigi Rizzo 		    }
34299758b77fSLuigi Rizzo 			break;
34309758b77fSLuigi Rizzo 
34319758b77fSLuigi Rizzo 		case TOK_GID:
34329758b77fSLuigi Rizzo 			NEED1("gid requires argument");
34339758b77fSLuigi Rizzo 		    {
34349758b77fSLuigi Rizzo 			char *end;
34359758b77fSLuigi Rizzo 			gid_t gid;
34369758b77fSLuigi Rizzo 			struct group *grp;
34379758b77fSLuigi Rizzo 
34389758b77fSLuigi Rizzo 			cmd->opcode = O_GID;
34399758b77fSLuigi Rizzo 			gid = strtoul(*av, &end, 0);
34409758b77fSLuigi Rizzo 			grp = (*end == '\0') ? getgrgid(gid) : getgrnam(*av);
34419758b77fSLuigi Rizzo 			if (grp == NULL)
34429758b77fSLuigi Rizzo 				errx(EX_DATAERR, "gid \"%s\" nonexistent", *av);
3443d6abaeebSMaxim Konovalov 			cmd32->d[0] = grp->gr_gid;
34443a27af0dSChristian S.J. Peron 			cmd->len |= F_INSN_SIZE(ipfw_insn_u32);
3445cc4d3c30SLuigi Rizzo 			av++;
34469758b77fSLuigi Rizzo 		    }
34479758b77fSLuigi Rizzo 			break;
34489758b77fSLuigi Rizzo 
344931c88a30SChristian S.J. Peron 		case TOK_JAIL:
345031c88a30SChristian S.J. Peron 			NEED1("jail requires argument");
345131c88a30SChristian S.J. Peron 		    {
345231c88a30SChristian S.J. Peron 			char *end;
345331c88a30SChristian S.J. Peron 			int jid;
345431c88a30SChristian S.J. Peron 
345531c88a30SChristian S.J. Peron 			cmd->opcode = O_JAIL;
345631c88a30SChristian S.J. Peron 			jid = (int)strtol(*av, &end, 0);
345731c88a30SChristian S.J. Peron 			if (jid < 0 || *end != '\0')
345831c88a30SChristian S.J. Peron 				errx(EX_DATAERR, "jail requires prison ID");
3459d413c2e4SChristian S.J. Peron 			cmd32->d[0] = (uint32_t)jid;
34603a27af0dSChristian S.J. Peron 			cmd->len |= F_INSN_SIZE(ipfw_insn_u32);
3461cc4d3c30SLuigi Rizzo 			av++;
346231c88a30SChristian S.J. Peron 		    }
346331c88a30SChristian S.J. Peron 			break;
346431c88a30SChristian S.J. Peron 
34659758b77fSLuigi Rizzo 		case TOK_ESTAB:
34669758b77fSLuigi Rizzo 			fill_cmd(cmd, O_ESTAB, 0, 0);
34679758b77fSLuigi Rizzo 			break;
34689758b77fSLuigi Rizzo 
34699758b77fSLuigi Rizzo 		case TOK_SETUP:
34709758b77fSLuigi Rizzo 			fill_cmd(cmd, O_TCPFLAGS, 0,
34719758b77fSLuigi Rizzo 				(TH_SYN) | ( (TH_ACK) & 0xff) <<8 );
34729758b77fSLuigi Rizzo 			break;
34739758b77fSLuigi Rizzo 
3474c99ee9e0SBrian Feldman 		case TOK_TCPDATALEN:
3475c99ee9e0SBrian Feldman 			NEED1("tcpdatalen requires length");
3476c99ee9e0SBrian Feldman 			if (strpbrk(*av, "-,")) {
3477c99ee9e0SBrian Feldman 			    if (!add_ports(cmd, *av, 0, O_TCPDATALEN))
3478c99ee9e0SBrian Feldman 				errx(EX_DATAERR, "invalid tcpdata len %s", *av);
3479c99ee9e0SBrian Feldman 			} else
3480c99ee9e0SBrian Feldman 			    fill_cmd(cmd, O_TCPDATALEN, 0,
3481c99ee9e0SBrian Feldman 				    strtoul(*av, NULL, 0));
3482cc4d3c30SLuigi Rizzo 			av++;
3483c99ee9e0SBrian Feldman 			break;
3484c99ee9e0SBrian Feldman 
34859758b77fSLuigi Rizzo 		case TOK_TCPOPTS:
34869758b77fSLuigi Rizzo 			NEED1("missing argument for tcpoptions");
34879758b77fSLuigi Rizzo 			fill_flags(cmd, O_TCPOPTS, f_tcpopts, *av);
3488cc4d3c30SLuigi Rizzo 			av++;
34899758b77fSLuigi Rizzo 			break;
34909758b77fSLuigi Rizzo 
34919758b77fSLuigi Rizzo 		case TOK_TCPSEQ:
34929758b77fSLuigi Rizzo 		case TOK_TCPACK:
34939758b77fSLuigi Rizzo 			NEED1("tcpseq/tcpack requires argument");
34949758b77fSLuigi Rizzo 			cmd->len = F_INSN_SIZE(ipfw_insn_u32);
34959758b77fSLuigi Rizzo 			cmd->opcode = (i == TOK_TCPSEQ) ? O_TCPSEQ : O_TCPACK;
34969758b77fSLuigi Rizzo 			cmd32->d[0] = htonl(strtoul(*av, NULL, 0));
3497cc4d3c30SLuigi Rizzo 			av++;
34989758b77fSLuigi Rizzo 			break;
34999758b77fSLuigi Rizzo 
35009758b77fSLuigi Rizzo 		case TOK_TCPWIN:
35019758b77fSLuigi Rizzo 			NEED1("tcpwin requires length");
350223ccd3d9SGleb Smirnoff 			if (strpbrk(*av, "-,")) {
350323ccd3d9SGleb Smirnoff 			    if (!add_ports(cmd, *av, 0, O_TCPWIN))
350423ccd3d9SGleb Smirnoff 				errx(EX_DATAERR, "invalid tcpwin len %s", *av);
350523ccd3d9SGleb Smirnoff 			} else
35069758b77fSLuigi Rizzo 			    fill_cmd(cmd, O_TCPWIN, 0,
350723ccd3d9SGleb Smirnoff 				    strtoul(*av, NULL, 0));
3508cc4d3c30SLuigi Rizzo 			av++;
35099758b77fSLuigi Rizzo 			break;
35109758b77fSLuigi Rizzo 
35119758b77fSLuigi Rizzo 		case TOK_TCPFLAGS:
35129758b77fSLuigi Rizzo 			NEED1("missing argument for tcpflags");
35139758b77fSLuigi Rizzo 			cmd->opcode = O_TCPFLAGS;
35149758b77fSLuigi Rizzo 			fill_flags(cmd, O_TCPFLAGS, f_tcpflags, *av);
3515cc4d3c30SLuigi Rizzo 			av++;
35169758b77fSLuigi Rizzo 			break;
35179758b77fSLuigi Rizzo 
35189758b77fSLuigi Rizzo 		case TOK_KEEPSTATE:
35198ed2d749SLuigi Rizzo 			if (open_par)
35208ed2d749SLuigi Rizzo 				errx(EX_USAGE, "keep-state cannot be part "
35218ed2d749SLuigi Rizzo 				    "of an or block");
35220a7197a8SLuigi Rizzo 			if (have_state)
352352bc23abSLuigi Rizzo 				errx(EX_USAGE, "only one of keep-state "
35240a7197a8SLuigi Rizzo 					"and limit is allowed");
352552bc23abSLuigi Rizzo 			have_state = cmd;
35269758b77fSLuigi Rizzo 			fill_cmd(cmd, O_KEEP_STATE, 0, 0);
35279758b77fSLuigi Rizzo 			break;
35289758b77fSLuigi Rizzo 
3529254c4725SOleg Bulyzhin 		case TOK_LIMIT: {
35309758b77fSLuigi Rizzo 			ipfw_insn_limit *c = (ipfw_insn_limit *)cmd;
3531254c4725SOleg Bulyzhin 			int val;
3532254c4725SOleg Bulyzhin 
3533254c4725SOleg Bulyzhin 			if (open_par)
3534254c4725SOleg Bulyzhin 				errx(EX_USAGE,
3535254c4725SOleg Bulyzhin 				    "limit cannot be part of an or block");
3536254c4725SOleg Bulyzhin 			if (have_state)
3537254c4725SOleg Bulyzhin 				errx(EX_USAGE, "only one of keep-state and "
3538254c4725SOleg Bulyzhin 				    "limit is allowed");
3539254c4725SOleg Bulyzhin 			have_state = cmd;
35409758b77fSLuigi Rizzo 
35419758b77fSLuigi Rizzo 			cmd->len = F_INSN_SIZE(ipfw_insn_limit);
35429758b77fSLuigi Rizzo 			cmd->opcode = O_LIMIT;
3543254c4725SOleg Bulyzhin 			c->limit_mask = c->conn_limit = 0;
35449758b77fSLuigi Rizzo 
3545cc4d3c30SLuigi Rizzo 			while ( av[0] != NULL ) {
3546254c4725SOleg Bulyzhin 				if ((val = match_token(limit_masks, *av)) <= 0)
35479758b77fSLuigi Rizzo 					break;
35489758b77fSLuigi Rizzo 				c->limit_mask |= val;
3549cc4d3c30SLuigi Rizzo 				av++;
35509758b77fSLuigi Rizzo 			}
3551254c4725SOleg Bulyzhin 
35529758b77fSLuigi Rizzo 			if (c->limit_mask == 0)
3553254c4725SOleg Bulyzhin 				errx(EX_USAGE, "limit: missing limit mask");
3554254c4725SOleg Bulyzhin 
3555b87ce554SLuigi Rizzo 			GET_UINT_ARG(c->conn_limit, IPFW_ARG_MIN, IPFW_ARG_MAX,
3556759dd6f7SRoman Kurakin 			    TOK_LIMIT, rule_options);
3557254c4725SOleg Bulyzhin 
3558cc4d3c30SLuigi Rizzo 			av++;
35599758b77fSLuigi Rizzo 			break;
3560254c4725SOleg Bulyzhin 		}
35619758b77fSLuigi Rizzo 
3562e706181bSLuigi Rizzo 		case TOK_PROTO:
3563e706181bSLuigi Rizzo 			NEED1("missing protocol");
35648195404bSBrooks Davis 			if (add_proto(cmd, *av, &proto)) {
3565cc4d3c30SLuigi Rizzo 				av++;
35665a155b40SLuigi Rizzo 			} else
3567c82b8dceSMaxim Konovalov 				errx(EX_DATAERR, "invalid protocol ``%s''",
3568c82b8dceSMaxim Konovalov 				    *av);
3569e706181bSLuigi Rizzo 			break;
3570e706181bSLuigi Rizzo 
3571e706181bSLuigi Rizzo 		case TOK_SRCIP:
3572e706181bSLuigi Rizzo 			NEED1("missing source IP");
3573e706181bSLuigi Rizzo 			if (add_srcip(cmd, *av)) {
3574cc4d3c30SLuigi Rizzo 				av++;
3575e706181bSLuigi Rizzo 			}
3576e706181bSLuigi Rizzo 			break;
3577e706181bSLuigi Rizzo 
3578e706181bSLuigi Rizzo 		case TOK_DSTIP:
3579e706181bSLuigi Rizzo 			NEED1("missing destination IP");
3580e706181bSLuigi Rizzo 			if (add_dstip(cmd, *av)) {
3581cc4d3c30SLuigi Rizzo 				av++;
3582e706181bSLuigi Rizzo 			}
3583e706181bSLuigi Rizzo 			break;
3584e706181bSLuigi Rizzo 
35858195404bSBrooks Davis 		case TOK_SRCIP6:
35868195404bSBrooks Davis 			NEED1("missing source IP6");
35878195404bSBrooks Davis 			if (add_srcip6(cmd, *av)) {
3588cc4d3c30SLuigi Rizzo 				av++;
35898195404bSBrooks Davis 			}
35908195404bSBrooks Davis 			break;
35918195404bSBrooks Davis 
35928195404bSBrooks Davis 		case TOK_DSTIP6:
35938195404bSBrooks Davis 			NEED1("missing destination IP6");
35948195404bSBrooks Davis 			if (add_dstip6(cmd, *av)) {
3595cc4d3c30SLuigi Rizzo 				av++;
35968195404bSBrooks Davis 			}
35978195404bSBrooks Davis 			break;
35988195404bSBrooks Davis 
3599e706181bSLuigi Rizzo 		case TOK_SRCPORT:
3600e706181bSLuigi Rizzo 			NEED1("missing source port");
360101750186SBrooks Davis 			if (_substrcmp(*av, "any") == 0 ||
3602e706181bSLuigi Rizzo 			    add_ports(cmd, *av, proto, O_IP_SRCPORT)) {
3603cc4d3c30SLuigi Rizzo 				av++;
3604e706181bSLuigi Rizzo 			} else
3605e706181bSLuigi Rizzo 				errx(EX_DATAERR, "invalid source port %s", *av);
3606e706181bSLuigi Rizzo 			break;
3607e706181bSLuigi Rizzo 
3608e706181bSLuigi Rizzo 		case TOK_DSTPORT:
3609e706181bSLuigi Rizzo 			NEED1("missing destination port");
361001750186SBrooks Davis 			if (_substrcmp(*av, "any") == 0 ||
3611e706181bSLuigi Rizzo 			    add_ports(cmd, *av, proto, O_IP_DSTPORT)) {
3612cc4d3c30SLuigi Rizzo 				av++;
3613e706181bSLuigi Rizzo 			} else
3614e706181bSLuigi Rizzo 				errx(EX_DATAERR, "invalid destination port %s",
3615e706181bSLuigi Rizzo 				    *av);
3616e706181bSLuigi Rizzo 			break;
3617e706181bSLuigi Rizzo 
3618e706181bSLuigi Rizzo 		case TOK_MAC:
3619cc4d3c30SLuigi Rizzo 			if (add_mac(cmd, av))
3620cc4d3c30SLuigi Rizzo 				av += 2;
3621e706181bSLuigi Rizzo 			break;
3622e706181bSLuigi Rizzo 
3623e706181bSLuigi Rizzo 		case TOK_MACTYPE:
3624e706181bSLuigi Rizzo 			NEED1("missing mac type");
3625cc4d3c30SLuigi Rizzo 			if (!add_mactype(cmd, *av))
3626c82b8dceSMaxim Konovalov 				errx(EX_DATAERR, "invalid mac type %s", *av);
3627cc4d3c30SLuigi Rizzo 			av++;
3628e706181bSLuigi Rizzo 			break;
3629e706181bSLuigi Rizzo 
3630010dabb0SCrist J. Clark 		case TOK_VERREVPATH:
3631010dabb0SCrist J. Clark 			fill_cmd(cmd, O_VERREVPATH, 0, 0);
3632010dabb0SCrist J. Clark 			break;
3633010dabb0SCrist J. Clark 
363422b5770bSAndre Oppermann 		case TOK_VERSRCREACH:
363522b5770bSAndre Oppermann 			fill_cmd(cmd, O_VERSRCREACH, 0, 0);
363622b5770bSAndre Oppermann 			break;
363722b5770bSAndre Oppermann 
36385f9541ecSAndre Oppermann 		case TOK_ANTISPOOF:
36395f9541ecSAndre Oppermann 			fill_cmd(cmd, O_ANTISPOOF, 0, 0);
36405f9541ecSAndre Oppermann 			break;
36415f9541ecSAndre Oppermann 
3642c3e5b9f1SLuigi Rizzo 		case TOK_IPSEC:
3643c3e5b9f1SLuigi Rizzo 			fill_cmd(cmd, O_IPSEC, 0, 0);
3644c3e5b9f1SLuigi Rizzo 			break;
3645c3e5b9f1SLuigi Rizzo 
36468195404bSBrooks Davis 		case TOK_IPV6:
36478195404bSBrooks Davis 			fill_cmd(cmd, O_IP6, 0, 0);
36488195404bSBrooks Davis 			break;
36498195404bSBrooks Davis 
365057cd6d26SMax Laier 		case TOK_IPV4:
365157cd6d26SMax Laier 			fill_cmd(cmd, O_IP4, 0, 0);
365257cd6d26SMax Laier 			break;
365357cd6d26SMax Laier 
36548195404bSBrooks Davis 		case TOK_EXT6HDR:
36558195404bSBrooks Davis 			fill_ext6hdr( cmd, *av );
3656cc4d3c30SLuigi Rizzo 			av++;
36578195404bSBrooks Davis 			break;
36588195404bSBrooks Davis 
36598195404bSBrooks Davis 		case TOK_FLOWID:
36608195404bSBrooks Davis 			if (proto != IPPROTO_IPV6 )
36618195404bSBrooks Davis 				errx( EX_USAGE, "flow-id filter is active "
36628195404bSBrooks Davis 				    "only for ipv6 protocol\n");
36638195404bSBrooks Davis 			fill_flow6( (ipfw_insn_u32 *) cmd, *av );
3664cc4d3c30SLuigi Rizzo 			av++;
36658195404bSBrooks Davis 			break;
36668195404bSBrooks Davis 
366762ff38aeSLuigi Rizzo 		case TOK_COMMENT:
3668cc4d3c30SLuigi Rizzo 			fill_comment(cmd, av);
3669cc4d3c30SLuigi Rizzo 			av[0]=NULL;
367062ff38aeSLuigi Rizzo 			break;
367162ff38aeSLuigi Rizzo 
36726a7d5cb6SOleg Bulyzhin 		case TOK_TAGGED:
3673cc4d3c30SLuigi Rizzo 			if (av[0] && strpbrk(*av, "-,")) {
36746a7d5cb6SOleg Bulyzhin 				if (!add_ports(cmd, *av, 0, O_TAGGED))
3675254c4725SOleg Bulyzhin 					errx(EX_DATAERR, "tagged: invalid tag"
3676254c4725SOleg Bulyzhin 					    " list: %s", *av);
3677254c4725SOleg Bulyzhin 			}
3678254c4725SOleg Bulyzhin 			else {
3679254c4725SOleg Bulyzhin 				uint16_t tag;
3680254c4725SOleg Bulyzhin 
3681b87ce554SLuigi Rizzo 				GET_UINT_ARG(tag, IPFW_ARG_MIN, IPFW_ARG_MAX,
3682759dd6f7SRoman Kurakin 				    TOK_TAGGED, rule_options);
3683254c4725SOleg Bulyzhin 				fill_cmd(cmd, O_TAGGED, 0, tag);
36846a7d5cb6SOleg Bulyzhin 			}
3685cc4d3c30SLuigi Rizzo 			av++;
36866a7d5cb6SOleg Bulyzhin 			break;
36876a7d5cb6SOleg Bulyzhin 
36888b07e49aSJulian Elischer 		case TOK_FIB:
36898b07e49aSJulian Elischer 			NEED1("fib requires fib number");
36908b07e49aSJulian Elischer 			fill_cmd(cmd, O_FIB, 0, strtoul(*av, NULL, 0));
3691cc4d3c30SLuigi Rizzo 			av++;
36928b07e49aSJulian Elischer 			break;
3693ae99fd0eSLuigi Rizzo 		case TOK_SOCKARG:
3694ae99fd0eSLuigi Rizzo 			fill_cmd(cmd, O_SOCKARG, 0, 0);
3695ae99fd0eSLuigi Rizzo 			break;
36968b07e49aSJulian Elischer 
3697472099c4SLuigi Rizzo 		case TOK_LOOKUP: {
3698472099c4SLuigi Rizzo 			ipfw_insn_u32 *c = (ipfw_insn_u32 *)cmd;
3699472099c4SLuigi Rizzo 			char *p;
3700472099c4SLuigi Rizzo 			int j;
3701472099c4SLuigi Rizzo 
370272662a75SLuigi Rizzo 			if (!av[0] || !av[1])
3703472099c4SLuigi Rizzo 				errx(EX_USAGE, "format: lookup argument tablenum");
3704472099c4SLuigi Rizzo 			cmd->opcode = O_IP_DST_LOOKUP;
3705472099c4SLuigi Rizzo 			cmd->len |= F_INSN_SIZE(ipfw_insn) + 2;
3706472099c4SLuigi Rizzo 			i = match_token(rule_options, *av);
3707472099c4SLuigi Rizzo 			for (j = 0; lookup_key[j] >= 0 ; j++) {
3708472099c4SLuigi Rizzo 				if (i == lookup_key[j])
3709472099c4SLuigi Rizzo 					break;
3710472099c4SLuigi Rizzo 			}
3711472099c4SLuigi Rizzo 			if (lookup_key[j] <= 0)
3712472099c4SLuigi Rizzo 				errx(EX_USAGE, "format: cannot lookup on %s", *av);
37135f301949SBen Laurie 			__PAST_END(c->d, 1) = j; // i converted to option
3714cc4d3c30SLuigi Rizzo 			av++;
3715472099c4SLuigi Rizzo 			cmd->arg1 = strtoul(*av, &p, 0);
3716472099c4SLuigi Rizzo 			if (p && *p)
3717472099c4SLuigi Rizzo 				errx(EX_USAGE, "format: lookup argument tablenum");
3718cc4d3c30SLuigi Rizzo 			av++;
3719472099c4SLuigi Rizzo 		    }
3720472099c4SLuigi Rizzo 			break;
3721472099c4SLuigi Rizzo 
37229758b77fSLuigi Rizzo 		default:
37239758b77fSLuigi Rizzo 			errx(EX_USAGE, "unrecognised option [%d] %s\n", i, s);
37249758b77fSLuigi Rizzo 		}
37259758b77fSLuigi Rizzo 		if (F_LEN(cmd) > 0) {	/* prepare to advance */
37269758b77fSLuigi Rizzo 			prev = cmd;
37279758b77fSLuigi Rizzo 			cmd = next_cmd(cmd);
37289758b77fSLuigi Rizzo 		}
37299758b77fSLuigi Rizzo 	}
37309758b77fSLuigi Rizzo 
37319758b77fSLuigi Rizzo done:
37329758b77fSLuigi Rizzo 	/*
37339758b77fSLuigi Rizzo 	 * Now copy stuff into the rule.
37349758b77fSLuigi Rizzo 	 * If we have a keep-state option, the first instruction
37359758b77fSLuigi Rizzo 	 * must be a PROBE_STATE (which is generated here).
37369758b77fSLuigi Rizzo 	 * If we have a LOG option, it was stored as the first command,
37379758b77fSLuigi Rizzo 	 * and now must be moved to the top of the action part.
37389758b77fSLuigi Rizzo 	 */
37399758b77fSLuigi Rizzo 	dst = (ipfw_insn *)rule->cmd;
37409758b77fSLuigi Rizzo 
37419758b77fSLuigi Rizzo 	/*
374212b5dc6aSLuigi Rizzo 	 * First thing to write into the command stream is the match probability.
374312b5dc6aSLuigi Rizzo 	 */
374412b5dc6aSLuigi Rizzo 	if (match_prob != 1) { /* 1 means always match */
374512b5dc6aSLuigi Rizzo 		dst->opcode = O_PROB;
374612b5dc6aSLuigi Rizzo 		dst->len = 2;
374712b5dc6aSLuigi Rizzo 		*((int32_t *)(dst+1)) = (int32_t)(match_prob * 0x7fffffff);
374812b5dc6aSLuigi Rizzo 		dst += dst->len;
374912b5dc6aSLuigi Rizzo 	}
375012b5dc6aSLuigi Rizzo 
375112b5dc6aSLuigi Rizzo 	/*
37529758b77fSLuigi Rizzo 	 * generate O_PROBE_STATE if necessary
37539758b77fSLuigi Rizzo 	 */
375452bc23abSLuigi Rizzo 	if (have_state && have_state->opcode != O_CHECK_STATE) {
37559758b77fSLuigi Rizzo 		fill_cmd(dst, O_PROBE_STATE, 0, 0);
37569758b77fSLuigi Rizzo 		dst = next_cmd(dst);
37579758b77fSLuigi Rizzo 	}
37586a7d5cb6SOleg Bulyzhin 
37596a7d5cb6SOleg Bulyzhin 	/* copy all commands but O_LOG, O_KEEP_STATE, O_LIMIT, O_ALTQ, O_TAG */
37609758b77fSLuigi Rizzo 	for (src = (ipfw_insn *)cmdbuf; src != cmd; src += i) {
37619758b77fSLuigi Rizzo 		i = F_LEN(src);
37629758b77fSLuigi Rizzo 
376352bc23abSLuigi Rizzo 		switch (src->opcode) {
376452bc23abSLuigi Rizzo 		case O_LOG:
376552bc23abSLuigi Rizzo 		case O_KEEP_STATE:
376652bc23abSLuigi Rizzo 		case O_LIMIT:
3767974dfe30SBrian Feldman 		case O_ALTQ:
37686a7d5cb6SOleg Bulyzhin 		case O_TAG:
376952bc23abSLuigi Rizzo 			break;
377052bc23abSLuigi Rizzo 		default:
3771571f8c1bSLuigi Rizzo 			bcopy(src, dst, i * sizeof(uint32_t));
37729758b77fSLuigi Rizzo 			dst += i;
37739758b77fSLuigi Rizzo 		}
37749758b77fSLuigi Rizzo 	}
37759758b77fSLuigi Rizzo 
37769758b77fSLuigi Rizzo 	/*
377752bc23abSLuigi Rizzo 	 * put back the have_state command as last opcode
377852bc23abSLuigi Rizzo 	 */
3779b985a624SLuigi Rizzo 	if (have_state && have_state->opcode != O_CHECK_STATE) {
378052bc23abSLuigi Rizzo 		i = F_LEN(have_state);
3781571f8c1bSLuigi Rizzo 		bcopy(have_state, dst, i * sizeof(uint32_t));
378252bc23abSLuigi Rizzo 		dst += i;
378352bc23abSLuigi Rizzo 	}
378452bc23abSLuigi Rizzo 	/*
37859758b77fSLuigi Rizzo 	 * start action section
37869758b77fSLuigi Rizzo 	 */
37879758b77fSLuigi Rizzo 	rule->act_ofs = dst - rule->cmd;
37889758b77fSLuigi Rizzo 
37896a7d5cb6SOleg Bulyzhin 	/* put back O_LOG, O_ALTQ, O_TAG if necessary */
3790974dfe30SBrian Feldman 	if (have_log) {
3791974dfe30SBrian Feldman 		i = F_LEN(have_log);
3792974dfe30SBrian Feldman 		bcopy(have_log, dst, i * sizeof(uint32_t));
3793974dfe30SBrian Feldman 		dst += i;
3794974dfe30SBrian Feldman 	}
3795974dfe30SBrian Feldman 	if (have_altq) {
3796974dfe30SBrian Feldman 		i = F_LEN(have_altq);
3797974dfe30SBrian Feldman 		bcopy(have_altq, dst, i * sizeof(uint32_t));
37989758b77fSLuigi Rizzo 		dst += i;
37999758b77fSLuigi Rizzo 	}
38006a7d5cb6SOleg Bulyzhin 	if (have_tag) {
38016a7d5cb6SOleg Bulyzhin 		i = F_LEN(have_tag);
38026a7d5cb6SOleg Bulyzhin 		bcopy(have_tag, dst, i * sizeof(uint32_t));
38036a7d5cb6SOleg Bulyzhin 		dst += i;
38046a7d5cb6SOleg Bulyzhin 	}
38059758b77fSLuigi Rizzo 	/*
38069758b77fSLuigi Rizzo 	 * copy all other actions
38079758b77fSLuigi Rizzo 	 */
38089758b77fSLuigi Rizzo 	for (src = (ipfw_insn *)actbuf; src != action; src += i) {
38099758b77fSLuigi Rizzo 		i = F_LEN(src);
3810571f8c1bSLuigi Rizzo 		bcopy(src, dst, i * sizeof(uint32_t));
38119758b77fSLuigi Rizzo 		dst += i;
38129758b77fSLuigi Rizzo 	}
38139758b77fSLuigi Rizzo 
3814571f8c1bSLuigi Rizzo 	rule->cmd_len = (uint32_t *)dst - (uint32_t *)(rule->cmd);
381562ff38aeSLuigi Rizzo 	i = (char *)dst - (char *)rule;
3816884be75cSThomas Moestl 	if (do_cmd(IP_FW_ADD, rule, (uintptr_t)&i) == -1)
38179758b77fSLuigi Rizzo 		err(EX_UNAVAILABLE, "getsockopt(%s)", "IP_FW_ADD");
3818db7c5224SLuigi Rizzo 	if (!co.do_quiet)
381962ff38aeSLuigi Rizzo 		show_ipfw(rule, 0, 0);
38209758b77fSLuigi Rizzo }
38219758b77fSLuigi Rizzo 
38223c0c8717SLuigi Rizzo /*
38233c0c8717SLuigi Rizzo  * clear the counters or the log counters.
38243c0c8717SLuigi Rizzo  */
38253c0c8717SLuigi Rizzo void
38263c0c8717SLuigi Rizzo ipfw_zero(int ac, char *av[], int optname /* 0 = IP_FW_ZERO, 1 = IP_FW_RESETLOG */)
38279758b77fSLuigi Rizzo {
3828d069a5d4SMaxim Konovalov 	uint32_t arg, saved_arg;
38299758b77fSLuigi Rizzo 	int failed = EX_OK;
3830d069a5d4SMaxim Konovalov 	char const *errstr;
38313c0c8717SLuigi Rizzo 	char const *name = optname ? "RESETLOG" : "ZERO";
38323c0c8717SLuigi Rizzo 
38333c0c8717SLuigi Rizzo 	optname = optname ? IP_FW_RESETLOG : IP_FW_ZERO;
38349758b77fSLuigi Rizzo 
38359758b77fSLuigi Rizzo 	av++; ac--;
38369758b77fSLuigi Rizzo 
38379758b77fSLuigi Rizzo 	if (!ac) {
38389758b77fSLuigi Rizzo 		/* clear all entries */
3839571f8c1bSLuigi Rizzo 		if (do_cmd(optname, NULL, 0) < 0)
3840571f8c1bSLuigi Rizzo 			err(EX_UNAVAILABLE, "setsockopt(IP_FW_%s)", name);
3841db7c5224SLuigi Rizzo 		if (!co.do_quiet)
3842571f8c1bSLuigi Rizzo 			printf("%s.\n", optname == IP_FW_ZERO ?
3843571f8c1bSLuigi Rizzo 			    "Accounting cleared":"Logging counts reset");
38449758b77fSLuigi Rizzo 
38459758b77fSLuigi Rizzo 		return;
38469758b77fSLuigi Rizzo 	}
38479758b77fSLuigi Rizzo 
38489758b77fSLuigi Rizzo 	while (ac) {
38499758b77fSLuigi Rizzo 		/* Rule number */
38509758b77fSLuigi Rizzo 		if (isdigit(**av)) {
3851d069a5d4SMaxim Konovalov 			arg = strtonum(*av, 0, 0xffff, &errstr);
3852d069a5d4SMaxim Konovalov 			if (errstr)
3853d069a5d4SMaxim Konovalov 				errx(EX_DATAERR,
3854d069a5d4SMaxim Konovalov 				    "invalid rule number %s\n", *av);
3855d069a5d4SMaxim Konovalov 			saved_arg = arg;
3856db7c5224SLuigi Rizzo 			if (co.use_set)
3857db7c5224SLuigi Rizzo 				arg |= (1 << 24) | ((co.use_set - 1) << 16);
38589758b77fSLuigi Rizzo 			av++;
38599758b77fSLuigi Rizzo 			ac--;
3860d069a5d4SMaxim Konovalov 			if (do_cmd(optname, &arg, sizeof(arg))) {
3861571f8c1bSLuigi Rizzo 				warn("rule %u: setsockopt(IP_FW_%s)",
3862d069a5d4SMaxim Konovalov 				    saved_arg, name);
38639758b77fSLuigi Rizzo 				failed = EX_UNAVAILABLE;
3864db7c5224SLuigi Rizzo 			} else if (!co.do_quiet)
3865d069a5d4SMaxim Konovalov 				printf("Entry %d %s.\n", saved_arg,
3866571f8c1bSLuigi Rizzo 				    optname == IP_FW_ZERO ?
3867571f8c1bSLuigi Rizzo 					"cleared" : "logging count reset");
38689758b77fSLuigi Rizzo 		} else {
38699758b77fSLuigi Rizzo 			errx(EX_USAGE, "invalid rule number ``%s''", *av);
38709758b77fSLuigi Rizzo 		}
38719758b77fSLuigi Rizzo 	}
38729758b77fSLuigi Rizzo 	if (failed != EX_OK)
38739758b77fSLuigi Rizzo 		exit(failed);
38749758b77fSLuigi Rizzo }
38759758b77fSLuigi Rizzo 
38763c0c8717SLuigi Rizzo void
38773c0c8717SLuigi Rizzo ipfw_flush(int force)
38789758b77fSLuigi Rizzo {
3879db7c5224SLuigi Rizzo 	int cmd = co.do_pipe ? IP_DUMMYNET_FLUSH : IP_FW_FLUSH;
38809758b77fSLuigi Rizzo 
3881db7c5224SLuigi Rizzo 	if (!force && !co.do_quiet) { /* need to ask user */
38829758b77fSLuigi Rizzo 		int c;
38839758b77fSLuigi Rizzo 
38849758b77fSLuigi Rizzo 		printf("Are you sure? [yn] ");
38859758b77fSLuigi Rizzo 		fflush(stdout);
38869758b77fSLuigi Rizzo 		do {
38879758b77fSLuigi Rizzo 			c = toupper(getc(stdin));
38889758b77fSLuigi Rizzo 			while (c != '\n' && getc(stdin) != '\n')
38899758b77fSLuigi Rizzo 				if (feof(stdin))
38909758b77fSLuigi Rizzo 					return; /* and do not flush */
38919758b77fSLuigi Rizzo 		} while (c != 'Y' && c != 'N');
38929758b77fSLuigi Rizzo 		printf("\n");
38939758b77fSLuigi Rizzo 		if (c == 'N')	/* user said no */
38949758b77fSLuigi Rizzo 			return;
38959758b77fSLuigi Rizzo 	}
3896cc4d3c30SLuigi Rizzo 	if (co.do_pipe) {
3897cc4d3c30SLuigi Rizzo 		dummynet_flush();
3898cc4d3c30SLuigi Rizzo 		return;
3899cc4d3c30SLuigi Rizzo 	}
3900d069a5d4SMaxim Konovalov 	/* `ipfw set N flush` - is the same that `ipfw delete set N` */
3901db7c5224SLuigi Rizzo 	if (co.use_set) {
3902db7c5224SLuigi Rizzo 		uint32_t arg = ((co.use_set - 1) & 0xffff) | (1 << 24);
3903d069a5d4SMaxim Konovalov 		if (do_cmd(IP_FW_DEL, &arg, sizeof(arg)) < 0)
3904d069a5d4SMaxim Konovalov 			err(EX_UNAVAILABLE, "setsockopt(IP_FW_DEL)");
3905d069a5d4SMaxim Konovalov 	} else if (do_cmd(cmd, NULL, 0) < 0)
39069758b77fSLuigi Rizzo 		err(EX_UNAVAILABLE, "setsockopt(IP_%s_FLUSH)",
3907db7c5224SLuigi Rizzo 		    co.do_pipe ? "DUMMYNET" : "FW");
3908db7c5224SLuigi Rizzo 	if (!co.do_quiet)
3909db7c5224SLuigi Rizzo 		printf("Flushed all %s.\n", co.do_pipe ? "pipes" : "rules");
39109758b77fSLuigi Rizzo }
39119758b77fSLuigi Rizzo 
391226bf4d78SLuigi Rizzo 
3913*f8bee51aSAlexander V. Chernikov static void table_list(uint16_t num, int need_header);
39145ec36cd6SRoman Kurakin 
391526bf4d78SLuigi Rizzo /*
3916cd8b5ae0SRuslan Ermilov  * This one handles all table-related commands
3917cd8b5ae0SRuslan Ermilov  * 	ipfw table N add addr[/masklen] [value]
3918cd8b5ae0SRuslan Ermilov  * 	ipfw table N delete addr[/masklen]
3919c15c2490SRoman Kurakin  * 	ipfw table {N | all} flush
3920c15c2490SRoman Kurakin  * 	ipfw table {N | all} list
3921cd8b5ae0SRuslan Ermilov  */
39223c0c8717SLuigi Rizzo void
39233c0c8717SLuigi Rizzo ipfw_table_handler(int ac, char *av[])
3924cd8b5ae0SRuslan Ermilov {
3925*f8bee51aSAlexander V. Chernikov 	ipfw_table_xentry xent;
3926cd8b5ae0SRuslan Ermilov 	int do_add;
3927c15c2490SRoman Kurakin 	int is_all;
3928eba1dd21SRoman Kurakin 	size_t len;
3929cd8b5ae0SRuslan Ermilov 	char *p;
3930*f8bee51aSAlexander V. Chernikov 	uint32_t a, type, mask, addrlen;
3931eba1dd21SRoman Kurakin 	uint32_t tables_max;
3932eba1dd21SRoman Kurakin 
39337bf717b7SGiorgos Keramidas 	len = sizeof(tables_max);
3934eba1dd21SRoman Kurakin 	if (sysctlbyname("net.inet.ip.fw.tables_max", &tables_max, &len,
3935eba1dd21SRoman Kurakin 		NULL, 0) == -1) {
3936eba1dd21SRoman Kurakin #ifdef IPFW_TABLES_MAX
3937eba1dd21SRoman Kurakin 		warn("Warn: Failed to get the max tables number via sysctl. "
3938eba1dd21SRoman Kurakin 		     "Using the compiled in defaults. \nThe reason was");
3939eba1dd21SRoman Kurakin 		tables_max = IPFW_TABLES_MAX;
3940eba1dd21SRoman Kurakin #else
3941eba1dd21SRoman Kurakin 		errx(1, "Failed sysctlbyname(\"net.inet.ip.fw.tables_max\")");
3942eba1dd21SRoman Kurakin #endif
3943eba1dd21SRoman Kurakin 	}
3944cd8b5ae0SRuslan Ermilov 
3945*f8bee51aSAlexander V. Chernikov 	memset(&xent, 0, sizeof(xent));
3946*f8bee51aSAlexander V. Chernikov 
3947cd8b5ae0SRuslan Ermilov 	ac--; av++;
3948cd8b5ae0SRuslan Ermilov 	if (ac && isdigit(**av)) {
3949*f8bee51aSAlexander V. Chernikov 		xent.tbl = atoi(*av);
3950c15c2490SRoman Kurakin 		is_all = 0;
3951c15c2490SRoman Kurakin 		ac--; av++;
3952c15c2490SRoman Kurakin 	} else if (ac && _substrcmp(*av, "all") == 0) {
3953*f8bee51aSAlexander V. Chernikov 		xent.tbl = 0;
3954c15c2490SRoman Kurakin 		is_all = 1;
3955cd8b5ae0SRuslan Ermilov 		ac--; av++;
3956cd8b5ae0SRuslan Ermilov 	} else
3957c15c2490SRoman Kurakin 		errx(EX_USAGE, "table number or 'all' keyword required");
3958*f8bee51aSAlexander V. Chernikov 	if (xent.tbl >= tables_max)
3959eba1dd21SRoman Kurakin 		errx(EX_USAGE, "The table number exceeds the maximum allowed "
3960eba1dd21SRoman Kurakin 			"value (%d)", tables_max - 1);
3961cd8b5ae0SRuslan Ermilov 	NEED1("table needs command");
3962c15c2490SRoman Kurakin 	if (is_all && _substrcmp(*av, "list") != 0
3963c15c2490SRoman Kurakin 		   && _substrcmp(*av, "flush") != 0)
3964c15c2490SRoman Kurakin 		errx(EX_USAGE, "table number required");
3965c15c2490SRoman Kurakin 
396601750186SBrooks Davis 	if (_substrcmp(*av, "add") == 0 ||
396701750186SBrooks Davis 	    _substrcmp(*av, "delete") == 0) {
3968cd8b5ae0SRuslan Ermilov 		do_add = **av == 'a';
3969cd8b5ae0SRuslan Ermilov 		ac--; av++;
3970cd8b5ae0SRuslan Ermilov 		if (!ac)
3971*f8bee51aSAlexander V. Chernikov 			errx(EX_USAGE, "address required");
3972*f8bee51aSAlexander V. Chernikov 		/*
3973*f8bee51aSAlexander V. Chernikov 		 * Let's try to guess type by agrument.
3974*f8bee51aSAlexander V. Chernikov 		 * Possible types:
3975*f8bee51aSAlexander V. Chernikov 		 * 1) IPv4[/mask]
3976*f8bee51aSAlexander V. Chernikov 		 * 2) IPv6[/mask]
3977*f8bee51aSAlexander V. Chernikov 		 * 3) interface name
3978*f8bee51aSAlexander V. Chernikov 		 * 4) port ?
3979*f8bee51aSAlexander V. Chernikov 		 */
3980*f8bee51aSAlexander V. Chernikov 		type = 0;
3981*f8bee51aSAlexander V. Chernikov 		if (ishexnumber(*av[0])) {
3982*f8bee51aSAlexander V. Chernikov 			/* Remove / if exists */
3983*f8bee51aSAlexander V. Chernikov 			if ((p = strchr(*av, '/')) != NULL) {
3984*f8bee51aSAlexander V. Chernikov 				*p = '\0';
3985*f8bee51aSAlexander V. Chernikov 				mask = atoi(p + 1);
3986*f8bee51aSAlexander V. Chernikov 			}
3987*f8bee51aSAlexander V. Chernikov 
3988*f8bee51aSAlexander V. Chernikov 			if (inet_pton(AF_INET, *av, &xent.k.addr6) == 1) {
3989*f8bee51aSAlexander V. Chernikov 				type = IPFW_TABLE_CIDR;
3990*f8bee51aSAlexander V. Chernikov 				if ((p != NULL) && (mask > 32))
3991*f8bee51aSAlexander V. Chernikov 					errx(EX_DATAERR, "bad IPv4 mask width: %s", p + 1);
3992*f8bee51aSAlexander V. Chernikov 				xent.masklen = p ? mask : 32;
3993*f8bee51aSAlexander V. Chernikov 				addrlen = sizeof(struct in_addr);
3994*f8bee51aSAlexander V. Chernikov 			} else if (inet_pton(AF_INET6, *av, &xent.k.addr6) == 1) {
3995*f8bee51aSAlexander V. Chernikov 				type = IPFW_TABLE_CIDR;
3996*f8bee51aSAlexander V. Chernikov 				if ((p != NULL) && (mask > 128))
3997*f8bee51aSAlexander V. Chernikov 					errx(EX_DATAERR, "bad IPv6 mask width: %s", p + 1);
3998*f8bee51aSAlexander V. Chernikov 				xent.masklen = p ? mask : 128;
3999*f8bee51aSAlexander V. Chernikov 				addrlen = sizeof(struct in6_addr);
4000*f8bee51aSAlexander V. Chernikov 			}
4001*f8bee51aSAlexander V. Chernikov 		}
4002*f8bee51aSAlexander V. Chernikov 
4003*f8bee51aSAlexander V. Chernikov 		if ((type == 0) && (strchr(*av, '.') == NULL)) {
4004*f8bee51aSAlexander V. Chernikov 			/* Assume interface name. Copy significant data only */
4005*f8bee51aSAlexander V. Chernikov 			mask = MIN(strlen(*av), IF_NAMESIZE - 1);
4006*f8bee51aSAlexander V. Chernikov 			memcpy(xent.k.iface, *av, mask);
4007*f8bee51aSAlexander V. Chernikov 			/* Set mask to exact match */
4008*f8bee51aSAlexander V. Chernikov 			xent.masklen = 8 * IF_NAMESIZE;
4009*f8bee51aSAlexander V. Chernikov 			type = IPFW_TABLE_INTERFACE;
4010*f8bee51aSAlexander V. Chernikov 			addrlen = IF_NAMESIZE;
4011*f8bee51aSAlexander V. Chernikov 		}
4012*f8bee51aSAlexander V. Chernikov 
4013*f8bee51aSAlexander V. Chernikov 		if (type == 0) {
4014*f8bee51aSAlexander V. Chernikov 			if (lookup_host(*av, (struct in_addr *)&xent.k.addr6) != 0)
40151a41a8e4SRuslan Ermilov 				errx(EX_NOHOST, "hostname ``%s'' unknown", *av);
4016*f8bee51aSAlexander V. Chernikov 			xent.masklen = 32;
4017*f8bee51aSAlexander V. Chernikov 			type = IPFW_TABLE_CIDR;
4018*f8bee51aSAlexander V. Chernikov 			addrlen = sizeof(struct in_addr);
4019*f8bee51aSAlexander V. Chernikov 		}
4020*f8bee51aSAlexander V. Chernikov 
4021*f8bee51aSAlexander V. Chernikov 		xent.type = type;
4022*f8bee51aSAlexander V. Chernikov 		xent.len = offsetof(ipfw_table_xentry, k) + addrlen;
4023*f8bee51aSAlexander V. Chernikov 
4024cd8b5ae0SRuslan Ermilov 		ac--; av++;
4025c487be96SJulian Elischer 		if (do_add && ac) {
4026c487be96SJulian Elischer 			unsigned int tval;
4027c487be96SJulian Elischer 			/* isdigit is a bit of a hack here.. */
4028c487be96SJulian Elischer 			if (strchr(*av, (int)'.') == NULL && isdigit(**av))  {
4029*f8bee51aSAlexander V. Chernikov 				xent.value = strtoul(*av, NULL, 0);
4030c487be96SJulian Elischer 			} else {
4031c487be96SJulian Elischer 				if (lookup_host(*av, (struct in_addr *)&tval) == 0) {
4032c487be96SJulian Elischer 					/* The value must be stored in host order	 *
4033c487be96SJulian Elischer 					 * so that the values < 65k can be distinguished */
4034*f8bee51aSAlexander V. Chernikov 		       			xent.value = ntohl(tval);
4035c487be96SJulian Elischer 				} else {
4036c487be96SJulian Elischer 					errx(EX_NOHOST, "hostname ``%s'' unknown", *av);
4037c487be96SJulian Elischer 				}
4038c487be96SJulian Elischer 			}
4039c487be96SJulian Elischer 		} else
4040*f8bee51aSAlexander V. Chernikov 			xent.value = 0;
4041*f8bee51aSAlexander V. Chernikov 		if (do_setcmd3(do_add ? IP_FW_TABLE_XADD : IP_FW_TABLE_XDEL,
4042*f8bee51aSAlexander V. Chernikov 		    &xent, xent.len) < 0) {
404321899082SJulian Elischer 			/* If running silent, don't bomb out on these errors. */
4044db7c5224SLuigi Rizzo 			if (!(co.do_quiet && (errno == (do_add ? EEXIST : ESRCH))))
404521899082SJulian Elischer 				err(EX_OSERR, "setsockopt(IP_FW_TABLE_%s)",
4046*f8bee51aSAlexander V. Chernikov 				    do_add ? "XADD" : "XDEL");
404721899082SJulian Elischer 			/* In silent mode, react to a failed add by deleting */
4048dbadd6b0SJulian Elischer 			if (do_add) {
4049*f8bee51aSAlexander V. Chernikov 				do_setcmd3(IP_FW_TABLE_XDEL, &xent, xent.len);
4050*f8bee51aSAlexander V. Chernikov 				if (do_setcmd3(IP_FW_TABLE_XADD, &xent, xent.len) < 0)
405121899082SJulian Elischer 					err(EX_OSERR,
4052*f8bee51aSAlexander V. Chernikov 					    "setsockopt(IP_FW_TABLE_XADD)");
4053dbadd6b0SJulian Elischer 			}
4054905c41b5SJulian Elischer 		}
405501750186SBrooks Davis 	} else if (_substrcmp(*av, "flush") == 0) {
4056*f8bee51aSAlexander V. Chernikov 		a = is_all ? tables_max : (uint32_t)(xent.tbl + 1);
4057c15c2490SRoman Kurakin 		do {
4058*f8bee51aSAlexander V. Chernikov 			if (do_cmd(IP_FW_TABLE_FLUSH, &xent.tbl,
4059*f8bee51aSAlexander V. Chernikov 			    sizeof(xent.tbl)) < 0)
4060cd8b5ae0SRuslan Ermilov 				err(EX_OSERR, "setsockopt(IP_FW_TABLE_FLUSH)");
4061*f8bee51aSAlexander V. Chernikov 		} while (++xent.tbl < a);
406201750186SBrooks Davis 	} else if (_substrcmp(*av, "list") == 0) {
4063*f8bee51aSAlexander V. Chernikov 		a = is_all ? tables_max : (uint32_t)(xent.tbl + 1);
4064c15c2490SRoman Kurakin 		do {
4065*f8bee51aSAlexander V. Chernikov 			table_list(xent.tbl, is_all);
4066*f8bee51aSAlexander V. Chernikov 		} while (++xent.tbl < a);
40675ec36cd6SRoman Kurakin 	} else
40685ec36cd6SRoman Kurakin 		errx(EX_USAGE, "invalid table command %s", *av);
40695ec36cd6SRoman Kurakin }
40705ec36cd6SRoman Kurakin 
40715ec36cd6SRoman Kurakin static void
4072*f8bee51aSAlexander V. Chernikov table_list(uint16_t num, int need_header)
40735ec36cd6SRoman Kurakin {
4074*f8bee51aSAlexander V. Chernikov 	ipfw_xtable *tbl;
4075*f8bee51aSAlexander V. Chernikov 	ipfw_table_xentry *xent;
40765ec36cd6SRoman Kurakin 	socklen_t l;
4077*f8bee51aSAlexander V. Chernikov 	uint32_t *a, sz, tval;
4078*f8bee51aSAlexander V. Chernikov 	char tbuf[128];
4079*f8bee51aSAlexander V. Chernikov 	struct in6_addr *addr6;
4080*f8bee51aSAlexander V. Chernikov 	ip_fw3_opheader *op3;
40815ec36cd6SRoman Kurakin 
4082*f8bee51aSAlexander V. Chernikov 	/* Prepend value with IP_FW3 header */
4083*f8bee51aSAlexander V. Chernikov 	l = sizeof(ip_fw3_opheader) + sizeof(uint32_t);
4084*f8bee51aSAlexander V. Chernikov 	op3 = alloca(l);
4085*f8bee51aSAlexander V. Chernikov 	/* Zero reserved fields */
4086*f8bee51aSAlexander V. Chernikov 	memset(op3, 0, sizeof(ip_fw3_opheader));
4087*f8bee51aSAlexander V. Chernikov 	a = (uint32_t *)(op3 + 1);
4088*f8bee51aSAlexander V. Chernikov 	*a = num;
4089*f8bee51aSAlexander V. Chernikov 	op3->opcode = IP_FW_TABLE_XGETSIZE;
4090*f8bee51aSAlexander V. Chernikov 	if (do_cmd(IP_FW3, op3, (uintptr_t)&l) < 0)
4091*f8bee51aSAlexander V. Chernikov 		err(EX_OSERR, "getsockopt(IP_FW_TABLE_XGETSIZE)");
409203d4b38dSRoman Kurakin 
409303d4b38dSRoman Kurakin 	/* If a is zero we have nothing to do, the table is empty. */
4094*f8bee51aSAlexander V. Chernikov 	if (*a == 0)
409503d4b38dSRoman Kurakin 		return;
409603d4b38dSRoman Kurakin 
4097*f8bee51aSAlexander V. Chernikov 	l = *a;
40985f356082SLuigi Rizzo 	tbl = safe_calloc(1, l);
4099*f8bee51aSAlexander V. Chernikov 	tbl->opheader.opcode = IP_FW_TABLE_XLIST;
4100*f8bee51aSAlexander V. Chernikov 	tbl->tbl = num;
4101*f8bee51aSAlexander V. Chernikov 	if (do_cmd(IP_FW3, tbl, (uintptr_t)&l) < 0)
4102*f8bee51aSAlexander V. Chernikov 		err(EX_OSERR, "getsockopt(IP_FW_TABLE_XLIST)");
4103c15c2490SRoman Kurakin 	if (tbl->cnt && need_header)
4104c15c2490SRoman Kurakin 		printf("---table(%d)---\n", tbl->tbl);
4105*f8bee51aSAlexander V. Chernikov 	sz = tbl->size - sizeof(ipfw_xtable);
4106*f8bee51aSAlexander V. Chernikov 	xent = &tbl->xent[0];
4107*f8bee51aSAlexander V. Chernikov 	while (sz > 0) {
4108*f8bee51aSAlexander V. Chernikov 		switch (tbl->type) {
4109*f8bee51aSAlexander V. Chernikov 		case IPFW_TABLE_CIDR:
4110*f8bee51aSAlexander V. Chernikov 			/* IPv4 or IPv6 prefixes */
4111*f8bee51aSAlexander V. Chernikov 			tval = xent->value;
4112*f8bee51aSAlexander V. Chernikov 			addr6 = &xent->k.addr6;
4113*f8bee51aSAlexander V. Chernikov 
4114*f8bee51aSAlexander V. Chernikov 			if ((addr6->s6_addr32[0] == 0) && (addr6->s6_addr32[1] == 0) &&
4115*f8bee51aSAlexander V. Chernikov 			    (addr6->s6_addr32[2] == 0)) {
4116*f8bee51aSAlexander V. Chernikov 				/* IPv4 address */
4117*f8bee51aSAlexander V. Chernikov 				inet_ntop(AF_INET, &addr6->s6_addr32[3], tbuf, sizeof(tbuf));
4118c487be96SJulian Elischer 			} else {
4119*f8bee51aSAlexander V. Chernikov 				/* IPv6 address */
4120*f8bee51aSAlexander V. Chernikov 				inet_ntop(AF_INET6, addr6, tbuf, sizeof(tbuf));
4121cd8b5ae0SRuslan Ermilov 			}
4122*f8bee51aSAlexander V. Chernikov 
4123*f8bee51aSAlexander V. Chernikov 			if (co.do_value_as_ip) {
4124*f8bee51aSAlexander V. Chernikov 				tval = htonl(tval);
4125*f8bee51aSAlexander V. Chernikov 				printf("%s/%u %s\n", tbuf, xent->masklen,
4126*f8bee51aSAlexander V. Chernikov 				    inet_ntoa(*(struct in_addr *)&tval));
4127*f8bee51aSAlexander V. Chernikov 			} else
4128*f8bee51aSAlexander V. Chernikov 				printf("%s/%u %u\n", tbuf, xent->masklen, tval);
4129*f8bee51aSAlexander V. Chernikov 			break;
4130*f8bee51aSAlexander V. Chernikov 		case IPFW_TABLE_INTERFACE:
4131*f8bee51aSAlexander V. Chernikov 			/* Interface names */
4132*f8bee51aSAlexander V. Chernikov 			tval = xent->value;
4133*f8bee51aSAlexander V. Chernikov 			if (co.do_value_as_ip) {
4134*f8bee51aSAlexander V. Chernikov 				tval = htonl(tval);
4135*f8bee51aSAlexander V. Chernikov 				printf("%s %s\n", xent->k.iface,
4136*f8bee51aSAlexander V. Chernikov 				    inet_ntoa(*(struct in_addr *)&tval));
4137*f8bee51aSAlexander V. Chernikov 			} else
4138*f8bee51aSAlexander V. Chernikov 				printf("%s %u\n", xent->k.iface, tval);
4139c487be96SJulian Elischer 		}
4140*f8bee51aSAlexander V. Chernikov 
4141*f8bee51aSAlexander V. Chernikov 		if (sz < xent->len)
4142*f8bee51aSAlexander V. Chernikov 			break;
4143*f8bee51aSAlexander V. Chernikov 		sz -= xent->len;
4144*f8bee51aSAlexander V. Chernikov 		xent = (void *)xent + xent->len;
4145*f8bee51aSAlexander V. Chernikov 	}
4146*f8bee51aSAlexander V. Chernikov 
4147b0000a98SRoman Kurakin 	free(tbl);
4148cd8b5ae0SRuslan Ermilov }
4149