1 /* $FreeBSD: stable/9/contrib/ipfilter/ipf.h 170268 2007-06-04 02:54:36Z darrenr $ */ 2 3 /* 4 * Copyright (C) 1993-2001, 2003 by Darren Reed. 5 * 6 * See the IPFILTER.LICENCE file for details on licencing. 7 * 8 * @(#)ipf.h 1.12 6/5/96 9 * $Id: ipf.h,v 2.71.2.15 2007/05/11 10:44:14 darrenr Exp $ 10 */ 11 12 #ifndef __IPF_H__ 13 #define __IPF_H__ 14 15 #if defined(__osf__) 16 # define radix_mask ipf_radix_mask 17 # define radix_node ipf_radix_node 18 # define radix_node_head ipf_radix_node_head 19 #endif 20 21 #include <sys/param.h> 22 #include <sys/types.h> 23 #include <sys/file.h> 24 /* 25 * This is a workaround for <sys/uio.h> troubles on FreeBSD, HPUX, OpenBSD. 26 * Needed here because on some systems <sys/uio.h> gets included by things 27 * like <sys/socket.h> 28 */ 29 #ifndef _KERNEL 30 # define ADD_KERNEL 31 # define _KERNEL 32 # define KERNEL 33 #endif 34 #ifdef __OpenBSD__ 35 struct file; 36 #endif 37 #include <sys/uio.h> 38 #ifdef ADD_KERNEL 39 # undef _KERNEL 40 # undef KERNEL 41 #endif 42 #include <sys/time.h> 43 #include <sys/socket.h> 44 #include <net/if.h> 45 #if __FreeBSD_version >= 300000 46 # include <net/if_var.h> 47 #endif 48 #include <netinet/in.h> 49 #include <netinet/in_systm.h> 50 #include <netinet/ip.h> 51 #include <netinet/ip_icmp.h> 52 #ifndef TCP_PAWS_IDLE /* IRIX */ 53 # include <netinet/tcp.h> 54 #endif 55 #include <netinet/udp.h> 56 57 #include <arpa/inet.h> 58 59 #include <errno.h> 60 #include <limits.h> 61 #include <netdb.h> 62 #include <stdlib.h> 63 #include <stddef.h> 64 #include <stdio.h> 65 #if !defined(__SVR4) && !defined(__svr4__) && defined(sun) 66 # include <strings.h> 67 #endif 68 #include <string.h> 69 #include <unistd.h> 70 71 #include "netinet/ip_compat.h" 72 #include "netinet/ip_fil.h" 73 #include "netinet/ip_nat.h" 74 #include "netinet/ip_frag.h" 75 #include "netinet/ip_state.h" 76 #include "netinet/ip_proxy.h" 77 #include "netinet/ip_auth.h" 78 #include "netinet/ip_lookup.h" 79 #include "netinet/ip_pool.h" 80 #include "netinet/ip_scan.h" 81 #include "netinet/ip_htable.h" 82 #include "netinet/ip_sync.h" 83 84 #include "opts.h" 85 86 #ifndef __P 87 # ifdef __STDC__ 88 # define __P(x) x 89 # else 90 # define __P(x) () 91 # endif 92 #endif 93 #ifndef __STDC__ 94 # undef const 95 # define const 96 #endif 97 98 #ifndef U_32_T 99 # define U_32_T 1 100 # if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \ 101 defined(__sgi) 102 typedef u_int32_t u_32_t; 103 # else 104 # if defined(__alpha__) || defined(__alpha) || defined(_LP64) 105 typedef unsigned int u_32_t; 106 # else 107 # if SOLARIS2 >= 6 108 typedef uint32_t u_32_t; 109 # else 110 typedef unsigned int u_32_t; 111 # endif 112 # endif 113 # endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */ 114 #endif /* U_32_T */ 115 116 #ifndef MAXHOSTNAMELEN 117 # define MAXHOSTNAMELEN 256 118 #endif 119 120 #define MAX_ICMPCODE 16 121 #define MAX_ICMPTYPE 19 122 123 124 struct ipopt_names { 125 int on_value; 126 int on_bit; 127 int on_siz; 128 char *on_name; 129 }; 130 131 132 typedef struct alist_s { 133 struct alist_s *al_next; 134 int al_not; 135 i6addr_t al_i6addr; 136 i6addr_t al_i6mask; 137 } alist_t; 138 139 #define al_addr al_i6addr.in4_addr 140 #define al_mask al_i6mask.in4_addr 141 #define al_1 al_addr 142 #define al_2 al_mask 143 144 145 typedef struct { 146 u_short fb_c; 147 u_char fb_t; 148 u_char fb_f; 149 u_32_t fb_k; 150 } fakebpf_t; 151 152 153 #if defined(__NetBSD__) || defined(__OpenBSD__) || \ 154 (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) || \ 155 SOLARIS || defined(__sgi) || defined(__osf__) || defined(linux) 156 # include <stdarg.h> 157 typedef int (* ioctlfunc_t) __P((int, ioctlcmd_t, ...)); 158 #else 159 typedef int (* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *)); 160 #endif 161 typedef void (* addfunc_t) __P((int, ioctlfunc_t, void *)); 162 typedef int (* copyfunc_t) __P((void *, void *, size_t)); 163 164 165 /* 166 * SunOS4 167 */ 168 #if defined(sun) && !defined(__SVR4) && !defined(__svr4__) 169 extern int ioctl __P((int, int, void *)); 170 #endif 171 172 extern char thishost[]; 173 extern char flagset[]; 174 extern u_char flags[]; 175 extern struct ipopt_names ionames[]; 176 extern struct ipopt_names secclass[]; 177 extern char *icmpcodes[MAX_ICMPCODE + 1]; 178 extern char *icmptypes[MAX_ICMPTYPE + 1]; 179 extern int use_inet6; 180 extern int lineNum; 181 extern struct ipopt_names v6ionames[]; 182 183 184 extern int addicmp __P((char ***, struct frentry *, int)); 185 extern int addipopt __P((char *, struct ipopt_names *, int, char *)); 186 extern void alist_free __P((alist_t *)); 187 extern alist_t *alist_new __P((int, char *)); 188 extern void binprint __P((void *, size_t)); 189 extern void initparse __P((void)); 190 extern u_32_t buildopts __P((char *, char *, int)); 191 extern int checkrev __P((char *)); 192 extern int count6bits __P((u_32_t *)); 193 extern int count4bits __P((u_32_t)); 194 extern char *fac_toname __P((int)); 195 extern int fac_findname __P((char *)); 196 extern void fill6bits __P((int, u_int *)); 197 extern int gethost __P((char *, u_32_t *)); 198 extern int getport __P((struct frentry *, char *, u_short *)); 199 extern int getportproto __P((char *, int)); 200 extern int getproto __P((char *)); 201 extern char *getnattype __P((struct nat *, int)); 202 extern char *getsumd __P((u_32_t)); 203 extern u_32_t getoptbyname __P((char *)); 204 extern u_32_t getoptbyvalue __P((int)); 205 extern u_32_t getv6optbyname __P((char *)); 206 extern u_32_t getv6optbyvalue __P((int)); 207 extern void initparse __P((void)); 208 extern void ipf_dotuning __P((int, char *, ioctlfunc_t)); 209 extern void ipf_addrule __P((int, ioctlfunc_t, void *)); 210 extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *)); 211 extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *)); 212 extern int ipmon_parsefile __P((char *)); 213 extern int ipmon_parsesome __P((FILE *)); 214 extern void ipnat_addrule __P((int, ioctlfunc_t, void *)); 215 extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *)); 216 extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *)); 217 extern int ippool_parsefile __P((int, char *, ioctlfunc_t)); 218 extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t)); 219 extern int kmemcpywrap __P((void *, void *, size_t)); 220 extern char *kvatoname __P((ipfunc_t, ioctlfunc_t)); 221 extern alist_t *load_file __P((char *)); 222 extern int load_hash __P((struct iphtable_s *, struct iphtent_s *, 223 ioctlfunc_t)); 224 extern int load_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t)); 225 extern alist_t *load_http __P((char *)); 226 extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t)); 227 extern int load_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t)); 228 extern alist_t *load_url __P((char *)); 229 extern alist_t *make_range __P((int, struct in_addr, struct in_addr)); 230 extern ipfunc_t nametokva __P((char *, ioctlfunc_t)); 231 extern void nat_setgroupmap __P((struct ipnat *)); 232 extern int ntomask __P((int, int, u_32_t *)); 233 extern u_32_t optname __P((char ***, u_short *, int)); 234 extern struct frentry *parse __P((char *, int)); 235 extern char *portname __P((int, int)); 236 extern int pri_findname __P((char *)); 237 extern char *pri_toname __P((int)); 238 extern void print_toif __P((char *, struct frdest *)); 239 extern void printaps __P((ap_session_t *, int)); 240 extern void printbuf __P((char *, int, int)); 241 extern void printfr __P((struct frentry *, ioctlfunc_t)); 242 extern void printtunable __P((ipftune_t *)); 243 extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t, 244 char *, int)); 245 extern struct iphtable_s *printhash_live __P((iphtable_t *, int, char *, int)); 246 extern void printhashdata __P((iphtable_t *, int)); 247 extern struct iphtent_s *printhashnode __P((struct iphtable_s *, 248 struct iphtent_s *, 249 copyfunc_t, int)); 250 extern void printhostmask __P((int, u_32_t *, u_32_t *)); 251 extern void printip __P((u_32_t *)); 252 extern void printlog __P((struct frentry *)); 253 extern void printlookup __P((i6addr_t *addr, i6addr_t *mask)); 254 extern void printmask __P((u_32_t *)); 255 extern void printpacket __P((struct ip *)); 256 extern void printpacket6 __P((struct ip *)); 257 extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t, 258 char *, int)); 259 extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int, 260 char *, int)); 261 extern void printpooldata __P((ip_pool_t *, int)); 262 extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, int)); 263 extern void printproto __P((struct protoent *, int, struct ipnat *)); 264 extern void printportcmp __P((int, struct frpcmp *)); 265 extern void optprint __P((u_short *, u_long, u_long)); 266 #ifdef USE_INET6 267 extern void optprintv6 __P((u_short *, u_long, u_long)); 268 #endif 269 extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t)); 270 extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t)); 271 extern int remove_pool __P((ip_pool_t *, ioctlfunc_t)); 272 extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t)); 273 extern u_char tcp_flags __P((char *, u_char *, int)); 274 extern u_char tcpflags __P((char *)); 275 extern void printc __P((struct frentry *)); 276 extern void printC __P((int)); 277 extern void emit __P((int, int, void *, struct frentry *)); 278 extern u_char secbit __P((int)); 279 extern u_char seclevel __P((char *)); 280 extern void printfraginfo __P((char *, struct ipfr *)); 281 extern void printifname __P((char *, char *, void *)); 282 extern char *hostname __P((int, void *)); 283 extern struct ipstate *printstate __P((struct ipstate *, int, u_long)); 284 extern void printsbuf __P((char *)); 285 extern void printnat __P((struct ipnat *, int)); 286 extern void printactivenat __P((struct nat *, int, int, u_long)); 287 extern void printhostmap __P((struct hostmap *, u_int)); 288 extern void printtqtable __P((ipftq_t *)); 289 290 extern void set_variable __P((char *, char *)); 291 extern char *get_variable __P((char *, char **, int)); 292 extern void resetlexer __P((void)); 293 294 #if SOLARIS 295 extern int gethostname __P((char *, int )); 296 extern void sync __P((void)); 297 #endif 298 299 #endif /* __IPF_H__ */ 300