1 /* 2 * Copyright (C) 1993-2001, 2003 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * @(#)ipf.h 1.12 6/5/96 7 * $Id: ipf.h,v 2.71.2.7 2005/06/12 07:18:31 darrenr Exp $ 8 * 9 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 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/ipf_stack.h" 72 #include "netinet/ip_compat.h" 73 #include "netinet/ip_fil.h" 74 #include "netinet/ip_nat.h" 75 #include "netinet/ip_frag.h" 76 #include "netinet/ip_state.h" 77 #include "netinet/ip_proxy.h" 78 #include "netinet/ip_auth.h" 79 #include "netinet/ip_lookup.h" 80 #include "netinet/ip_pool.h" 81 #ifdef IPFILTER_SCAN 82 #include "netinet/ip_scan.h" 83 #endif 84 #include "netinet/ip_htable.h" 85 #ifdef IPFILTER_SYNC 86 #include "netinet/ip_sync.h" 87 #endif 88 89 #include "opts.h" 90 91 #ifndef __P 92 # ifdef __STDC__ 93 # define __P(x) x 94 # else 95 # define __P(x) () 96 # endif 97 #endif 98 #ifndef __STDC__ 99 # undef const 100 # define const 101 #endif 102 103 #ifndef U_32_T 104 # define U_32_T 1 105 # if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \ 106 defined(__sgi) 107 typedef u_int32_t u_32_t; 108 # else 109 # if defined(__alpha__) || defined(__alpha) || defined(_LP64) 110 typedef unsigned int u_32_t; 111 # else 112 # if SOLARIS2 >= 6 113 typedef uint32_t u_32_t; 114 # else 115 typedef unsigned int u_32_t; 116 # endif 117 # endif 118 # endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */ 119 #endif /* U_32_T */ 120 121 #ifndef MAXHOSTNAMELEN 122 # define MAXHOSTNAMELEN 256 123 #endif 124 125 #define MAX_ICMPCODE 16 126 #define MAX_ICMPTYPE 19 127 128 129 struct ipopt_names { 130 int on_value; 131 int on_bit; 132 int on_siz; 133 char *on_name; 134 }; 135 136 137 typedef struct alist_s { 138 struct alist_s *al_next; 139 int al_not; 140 sa_family_t al_family; 141 i6addr_t al_i6addr; 142 i6addr_t al_i6mask; 143 } alist_t; 144 145 #define al_addr al_i6addr.in4_addr 146 #define al_mask al_i6mask.in4_addr 147 #define al_1 al_addr 148 #define al_2 al_mask 149 150 151 typedef struct { 152 u_short fb_c; 153 u_char fb_t; 154 u_char fb_f; 155 u_32_t fb_k; 156 } fakebpf_t; 157 158 159 #if defined(__NetBSD__) || defined(__OpenBSD__) || \ 160 (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) || \ 161 SOLARIS || defined(__sgi) || defined(__osf__) || defined(linux) 162 # include <stdarg.h> 163 typedef int (* ioctlfunc_t) __P((int, ioctlcmd_t, ...)); 164 #else 165 typedef int (* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *)); 166 #endif 167 typedef void (* addfunc_t) __P((int, ioctlfunc_t, void *)); 168 typedef int (* copyfunc_t) __P((void *, void *, size_t)); 169 170 171 /* 172 * SunOS4 173 */ 174 #if defined(sun) && !defined(__SVR4) && !defined(__svr4__) 175 extern int ioctl __P((int, int, void *)); 176 #endif 177 178 extern char thishost[]; 179 extern char flagset[]; 180 extern u_char flags[]; 181 extern struct ipopt_names ionames[]; 182 extern struct ipopt_names secclass[]; 183 extern char *icmpcodes[MAX_ICMPCODE + 1]; 184 extern char *icmptypes[MAX_ICMPTYPE + 1]; 185 extern int use_inet6; 186 extern int lineNum; 187 extern struct ipopt_names v6ionames[]; 188 189 190 extern int addicmp __P((char ***, struct frentry *, int)); 191 extern int addipopt __P((char *, struct ipopt_names *, int, char *)); 192 extern int addkeep __P((char ***, struct frentry *, int)); 193 extern int bcopywrap __P((void *, void *, size_t)); 194 extern void binprint __P((void *, size_t)); 195 extern void initparse __P((void)); 196 extern u_32_t buildopts __P((char *, char *, int)); 197 extern int checkrev __P((char *)); 198 extern int count6bits __P((u_32_t *)); 199 extern int count4bits __P((u_32_t)); 200 extern int extras __P((char ***, struct frentry *, int)); 201 extern char *fac_toname __P((int)); 202 extern int fac_findname __P((char *)); 203 extern void fill6bits __P((int, u_int *)); 204 extern int gethost __P((char *, i6addr_t *, int)); 205 extern int getport __P((struct frentry *, char *, u_short *)); 206 extern int getportproto __P((char *, int)); 207 extern int getproto __P((char *)); 208 extern char *getaline __P((char *, size_t, FILE *, int *)); 209 extern int genmask __P((char *, u_32_t *)); 210 extern char *getnattype __P((struct nat *, int)); 211 extern char *getsumd __P((u_32_t)); 212 extern u_32_t getoptbyname __P((char *)); 213 extern u_32_t getoptbyvalue __P((int)); 214 extern u_32_t getv6optbyname __P((char *)); 215 extern u_32_t getv6optbyvalue __P((int)); 216 extern void hexdump __P((FILE *, void *, int, int)); 217 extern int icmpcode __P((char *)); 218 extern void initparse __P((void)); 219 extern void ipf_dotuning __P((int, char *, ioctlfunc_t)); 220 extern void ipf_addrule __P((int, ioctlfunc_t, void *)); 221 extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *)); 222 extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *)); 223 extern int ipmon_parsefile __P((char *)); 224 extern int ipmon_parsesome __P((FILE *)); 225 extern void ipnat_addrule __P((int, ioctlfunc_t, void *)); 226 extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *)); 227 extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *)); 228 extern int ippool_parsefile __P((int, char *, ioctlfunc_t)); 229 extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t)); 230 extern int kmemcpywrap __P((void *, void *, size_t)); 231 extern char *kvatoname __P((ipfunc_t, ioctlfunc_t)); 232 extern int load_hash __P((struct iphtable_s *, struct iphtent_s *, 233 ioctlfunc_t)); 234 extern int load_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t)); 235 extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t)); 236 extern int load_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t)); 237 extern int loglevel __P((char **, u_int *, int)); 238 extern alist_t *make_range __P((int, struct in_addr, struct in_addr)); 239 extern ipfunc_t nametokva __P((char *, ioctlfunc_t)); 240 extern void nat_setgroupmap __P((struct ipnat *)); 241 extern int ntomask __P((int, int, u_32_t *)); 242 extern u_32_t optname __P((char ***, u_short *, int)); 243 extern struct frentry *parse __P((char *, int)); 244 extern char *portname __P((int, int)); 245 extern int portnum __P((char *, char *, u_short *, int)); 246 extern int ports __P((char ***, char *, u_short *, int *, u_short *, int)); 247 extern int pri_findname __P((char *)); 248 extern char *pri_toname __P((int)); 249 extern void print_toif __P((char *, struct frdest *)); 250 extern void printaddr __P((int, int, char *, u_32_t *, u_32_t *)); 251 extern void printaps __P((ap_session_t *, int)); 252 extern void printbuf __P((char *, int, int)); 253 extern void printfr __P((struct frentry *, ioctlfunc_t)); 254 extern struct iphtable_s *printhash_live __P((struct iphtable_s *, int, char*, int)); 255 extern void printhashdata __P((struct iphtable_s *, int)); 256 extern void printtunable __P((ipftune_t *)); 257 extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t, 258 char *, int)); 259 extern struct iphtent_s *printhashnode __P((struct iphtable_s *, 260 struct iphtent_s *, 261 copyfunc_t, int)); 262 extern void printhostmask __P((int, u_32_t *, u_32_t *)); 263 extern void printip __P((u_32_t *)); 264 extern void printlog __P((struct frentry *)); 265 extern void printlookup __P((i6addr_t *addr, i6addr_t *mask)); 266 extern void printmask __P((int, u_32_t *)); 267 extern void printpacket __P((struct ip *)); 268 extern void printpacket6 __P((struct ip *)); 269 extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t, 270 char *, int)); 271 extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int, char*, int)); 272 extern void printpooldata __P((struct ip_pool_s *, int)); 273 extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, int)); 274 extern void printproto __P((struct protoent *, int, struct ipnat *)); 275 extern void printportcmp __P((int, struct frpcmp *)); 276 extern void optprint __P((u_short *, u_long, u_long)); 277 #ifdef USE_INET6 278 extern void optprintv6 __P((u_short *, u_long, u_long)); 279 #endif 280 extern int ratoi __P((char *, int *, int, int)); 281 extern int ratoui __P((char *, u_int *, u_int, u_int)); 282 extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t)); 283 extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t)); 284 extern int remove_pool __P((ip_pool_t *, ioctlfunc_t)); 285 extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t)); 286 extern u_char tcp_flags __P((char *, u_char *, int)); 287 extern u_char tcpflags __P((char *)); 288 extern void printc __P((struct frentry *)); 289 extern void printC __P((int)); 290 extern void emit __P((int, int, void *, struct frentry *)); 291 extern u_char secbit __P((int)); 292 extern u_char seclevel __P((char *)); 293 extern void printfraginfo __P((char *, struct ipfr *)); 294 extern void printifname __P((char *, char *, void *)); 295 extern char *hostname __P((int, void *)); 296 extern struct ipstate *printstate __P((struct ipstate *, int, u_long)); 297 extern void printsbuf __P((char *)); 298 extern void printnat __P((struct ipnat *, int)); 299 extern void printactiveaddress __P((int, char *, i6addr_t *, char *)); 300 extern void printactivenat __P((struct nat *, int, int)); 301 extern void printhostmap __P((struct hostmap *, u_int)); 302 extern void printpacket __P((struct ip *)); 303 304 extern void set_variable __P((char *, char *)); 305 extern char *get_variable __P((char *, char **, int)); 306 extern void resetlexer __P((void)); 307 308 #if SOLARIS 309 extern int gethostname __P((char *, int )); 310 extern void sync __P((void)); 311 #endif 312 313 #endif /* __IPF_H__ */ 314