ipfw2.h revision 187787
1187767Sluigi/* 2187767Sluigi * Copyright (c) 2002-2003 Luigi Rizzo 3187767Sluigi * Copyright (c) 1996 Alex Nash, Paul Traina, Poul-Henning Kamp 4187767Sluigi * Copyright (c) 1994 Ugen J.S.Antsilevich 5187767Sluigi * 6187767Sluigi * Idea and grammar partially left from: 7187767Sluigi * Copyright (c) 1993 Daniel Boulet 8187767Sluigi * 9187767Sluigi * Redistribution and use in source forms, with and without modification, 10187767Sluigi * are permitted provided that this entire comment appears intact. 11187767Sluigi * 12187767Sluigi * Redistribution in binary form may occur without any restrictions. 13187767Sluigi * Obviously, it would be nice if you gave credit where credit is due 14187767Sluigi * but requiring it would be too onerous. 15187767Sluigi * 16187767Sluigi * This software is provided ``AS IS'' without any warranties of any kind. 17187767Sluigi * 18187767Sluigi * NEW command line interface for IP firewall facility 19187767Sluigi * 20187767Sluigi * $FreeBSD: head/sbin/ipfw/ipfw2.h 187787 2009-01-27 20:26:45Z luigi $ 21187767Sluigi */ 22187767Sluigi 23187767Sluigi/* 24187767Sluigi * Options that can be set on the command line. 25187767Sluigi * When reading commands from a file, a subset of the options can also 26187767Sluigi * be applied globally by specifying them before the file name. 27187767Sluigi * After that, each line can contain its own option that changes 28187767Sluigi * the global value. 29187767Sluigi * XXX The context is not restored after each line. 30187767Sluigi */ 31187767Sluigi 32187767Sluigistruct cmdline_opts { 33187767Sluigi /* boolean options: */ 34187767Sluigi int do_value_as_ip; /* show table value as IP */ 35187767Sluigi int do_resolv; /* try to resolve all ip to names */ 36187767Sluigi int do_time; /* Show time stamps */ 37187767Sluigi int do_quiet; /* Be quiet in add and flush */ 38187767Sluigi int do_pipe; /* this cmd refers to a pipe */ 39187767Sluigi int do_nat; /* this cmd refers to a nat config */ 40187767Sluigi int do_dynamic; /* display dynamic rules */ 41187767Sluigi int do_expired; /* display expired dynamic rules */ 42187767Sluigi int do_compact; /* show rules in compact mode */ 43187767Sluigi int do_force; /* do not ask for confirmation */ 44187767Sluigi int show_sets; /* display the set each rule belongs to */ 45187767Sluigi int test_only; /* only check syntax */ 46187767Sluigi int comment_only; /* only print action and comment */ 47187767Sluigi int verbose; /* be verbose on some commands */ 48187767Sluigi 49187767Sluigi /* The options below can have multiple values. */ 50187767Sluigi 51187767Sluigi int do_sort; /* field to sort results (0 = no) */ 52187767Sluigi /* valid fields are 1 and above */ 53187767Sluigi 54187767Sluigi int use_set; /* work with specified set number */ 55187767Sluigi /* 0 means all sets, otherwise apply to set use_set - 1 */ 56187767Sluigi 57187767Sluigi}; 58187767Sluigi 59187767Sluigiextern struct cmdline_opts co; 60187767Sluigi 61187767Sluigi/* 62187767Sluigi * _s_x is a structure that stores a string <-> token pairs, used in 63187767Sluigi * various places in the parser. Entries are stored in arrays, 64187767Sluigi * with an entry with s=NULL as terminator. 65187767Sluigi * The search routines are match_token() and match_value(). 66187767Sluigi * Often, an element with x=0 contains an error string. 67187767Sluigi * 68187767Sluigi */ 69187767Sluigistruct _s_x { 70187767Sluigi char const *s; 71187767Sluigi int x; 72187767Sluigi}; 73187767Sluigi 74187769Sluigienum tokens { 75187769Sluigi TOK_NULL=0, 76187769Sluigi 77187769Sluigi TOK_OR, 78187769Sluigi TOK_NOT, 79187769Sluigi TOK_STARTBRACE, 80187769Sluigi TOK_ENDBRACE, 81187769Sluigi 82187769Sluigi TOK_ACCEPT, 83187769Sluigi TOK_COUNT, 84187769Sluigi TOK_PIPE, 85187769Sluigi TOK_QUEUE, 86187769Sluigi TOK_DIVERT, 87187769Sluigi TOK_TEE, 88187769Sluigi TOK_NETGRAPH, 89187769Sluigi TOK_NGTEE, 90187769Sluigi TOK_FORWARD, 91187769Sluigi TOK_SKIPTO, 92187769Sluigi TOK_DENY, 93187769Sluigi TOK_REJECT, 94187769Sluigi TOK_RESET, 95187769Sluigi TOK_UNREACH, 96187769Sluigi TOK_CHECKSTATE, 97187769Sluigi TOK_NAT, 98187769Sluigi 99187769Sluigi TOK_ALTQ, 100187769Sluigi TOK_LOG, 101187769Sluigi TOK_TAG, 102187769Sluigi TOK_UNTAG, 103187769Sluigi 104187769Sluigi TOK_TAGGED, 105187769Sluigi TOK_UID, 106187769Sluigi TOK_GID, 107187769Sluigi TOK_JAIL, 108187769Sluigi TOK_IN, 109187769Sluigi TOK_LIMIT, 110187769Sluigi TOK_KEEPSTATE, 111187769Sluigi TOK_LAYER2, 112187769Sluigi TOK_OUT, 113187769Sluigi TOK_DIVERTED, 114187769Sluigi TOK_DIVERTEDLOOPBACK, 115187769Sluigi TOK_DIVERTEDOUTPUT, 116187769Sluigi TOK_XMIT, 117187769Sluigi TOK_RECV, 118187769Sluigi TOK_VIA, 119187769Sluigi TOK_FRAG, 120187769Sluigi TOK_IPOPTS, 121187769Sluigi TOK_IPLEN, 122187769Sluigi TOK_IPID, 123187769Sluigi TOK_IPPRECEDENCE, 124187769Sluigi TOK_IPTOS, 125187769Sluigi TOK_IPTTL, 126187769Sluigi TOK_IPVER, 127187769Sluigi TOK_ESTAB, 128187769Sluigi TOK_SETUP, 129187769Sluigi TOK_TCPDATALEN, 130187769Sluigi TOK_TCPFLAGS, 131187769Sluigi TOK_TCPOPTS, 132187769Sluigi TOK_TCPSEQ, 133187769Sluigi TOK_TCPACK, 134187769Sluigi TOK_TCPWIN, 135187769Sluigi TOK_ICMPTYPES, 136187769Sluigi TOK_MAC, 137187769Sluigi TOK_MACTYPE, 138187769Sluigi TOK_VERREVPATH, 139187769Sluigi TOK_VERSRCREACH, 140187769Sluigi TOK_ANTISPOOF, 141187769Sluigi TOK_IPSEC, 142187769Sluigi TOK_COMMENT, 143187769Sluigi 144187769Sluigi TOK_PLR, 145187769Sluigi TOK_NOERROR, 146187769Sluigi TOK_BUCKETS, 147187769Sluigi TOK_DSTIP, 148187769Sluigi TOK_SRCIP, 149187769Sluigi TOK_DSTPORT, 150187769Sluigi TOK_SRCPORT, 151187769Sluigi TOK_ALL, 152187769Sluigi TOK_MASK, 153187769Sluigi TOK_BW, 154187769Sluigi TOK_DELAY, 155187769Sluigi TOK_RED, 156187769Sluigi TOK_GRED, 157187769Sluigi TOK_DROPTAIL, 158187769Sluigi TOK_PROTO, 159187769Sluigi TOK_WEIGHT, 160187769Sluigi TOK_IP, 161187769Sluigi TOK_IF, 162187769Sluigi TOK_ALOG, 163187769Sluigi TOK_DENY_INC, 164187769Sluigi TOK_SAME_PORTS, 165187769Sluigi TOK_UNREG_ONLY, 166187769Sluigi TOK_RESET_ADDR, 167187769Sluigi TOK_ALIAS_REV, 168187769Sluigi TOK_PROXY_ONLY, 169187769Sluigi TOK_REDIR_ADDR, 170187769Sluigi TOK_REDIR_PORT, 171187769Sluigi TOK_REDIR_PROTO, 172187769Sluigi 173187769Sluigi TOK_IPV6, 174187769Sluigi TOK_FLOWID, 175187769Sluigi TOK_ICMP6TYPES, 176187769Sluigi TOK_EXT6HDR, 177187769Sluigi TOK_DSTIP6, 178187769Sluigi TOK_SRCIP6, 179187769Sluigi 180187769Sluigi TOK_IPV4, 181187769Sluigi TOK_UNREACH6, 182187769Sluigi TOK_RESET6, 183187769Sluigi 184187769Sluigi TOK_FIB, 185187769Sluigi TOK_SETFIB, 186187769Sluigi}; 187187767Sluigi/* 188187767Sluigi * the following macro returns an error message if we run out of 189187767Sluigi * arguments. 190187767Sluigi */ 191187767Sluigi#define NEED1(msg) {if (!ac) errx(EX_USAGE, msg);} 192187767Sluigi 193187787Sluigiunsigned long long align_uint64(const uint64_t *pll); 194187787Sluigi 195187767Sluigi/* memory allocation support */ 196187767Sluigivoid *safe_calloc(size_t number, size_t size); 197187767Sluigivoid *safe_realloc(void *ptr, size_t size); 198187767Sluigi 199187770Sluigi/* string comparison functions used for historical compatibility */ 200187767Sluigiint _substrcmp(const char *str1, const char* str2); 201187769Sluigiint _substrcmp2(const char *str1, const char* str2, const char* str3); 202187767Sluigi 203187770Sluigi/* utility functions */ 204187769Sluigiint match_token(struct _s_x *table, char *string); 205187770Sluigichar const *match_value(struct _s_x *p, int value); 206187770Sluigi 207187769Sluigiint do_cmd(int optname, void *optval, uintptr_t optlen); 208187769Sluigi 209187769Sluigistruct in6_addr; 210187769Sluigivoid n2mask(struct in6_addr *mask, int n); 211187770Sluigiint contigmask(uint8_t *p, int len); 212187769Sluigi 213187770Sluigi/* forward declarations to avoid header dependency */ 214187770Sluigitypedef struct _ipfw_insn ipfw_insn; 215187770Sluigitypedef struct _ipfw_insn_u32 ipfw_insn_u32; 216187770Sluigitypedef struct _ipfw_insn_ip6 ipfw_insn_ip6; 217187770Sluigitypedef struct _ipfw_insn_icmp6 ipfw_insn_icmp6; 218187769Sluigi 219187770Sluigi 220187767Sluigi/* 221187767Sluigi * The reserved set numer. This is a constant in ip_fw.h 222187767Sluigi * but we store it in a variable so other files do not depend 223187767Sluigi * in that header just for one constant. 224187767Sluigi */ 225187767Sluigiextern int resvd_set_number; 226187767Sluigi 227187770Sluigi/* first-level command handlers */ 228187767Sluigivoid ipfw_add(int ac, char *av[]); 229187767Sluigivoid ipfw_show_nat(int ac, char **av); 230187767Sluigivoid ipfw_config_pipe(int ac, char **av); 231187767Sluigivoid ipfw_config_nat(int ac, char **av); 232187767Sluigivoid ipfw_sets_handler(int ac, char *av[]); 233187767Sluigivoid ipfw_table_handler(int ac, char *av[]); 234187767Sluigivoid ipfw_sysctl_handler(int ac, char *av[], int which); 235187767Sluigivoid ipfw_delete(int ac, char *av[]); 236187767Sluigivoid ipfw_flush(int force); 237187767Sluigivoid ipfw_zero(int ac, char *av[], int optname); 238187767Sluigivoid ipfw_list(int ac, char *av[], int show_counters); 239187767Sluigi 240187770Sluigi/* dummynet.c */ 241187769Sluigivoid ipfw_list_pipes(void *data, uint nbytes, int ac, char *av[]); 242187769Sluigiint ipfw_delete_pipe(int pipe_or_queue, int n); 243187769Sluigi 244187770Sluigi/* ipv6.c */ 245187770Sluigivoid print_unreach6_code(uint16_t code); 246187770Sluigivoid print_ip6(ipfw_insn_ip6 *cmd, char const *s); 247187770Sluigivoid print_flow6id( ipfw_insn_u32 *cmd); 248187770Sluigivoid print_icmp6types(ipfw_insn_u32 *cmd); 249187770Sluigivoid print_ext6hdr( ipfw_insn *cmd ); 250187770Sluigi 251187770Sluigiipfw_insn *add_srcip6(ipfw_insn *cmd, char *av); 252187770Sluigiipfw_insn *add_dstip6(ipfw_insn *cmd, char *av); 253187770Sluigi 254187770Sluigivoid fill_flow6( ipfw_insn_u32 *cmd, char *av ); 255187770Sluigivoid fill_unreach6_code(u_short *codep, char *str); 256187770Sluigivoid fill_icmp6types(ipfw_insn_icmp6 *cmd, char *av); 257187770Sluigiint fill_ext6hdr( ipfw_insn *cmd, char *av); 258