dist/ipf/ipf.h

   1 /*      $NetBSD: ipf.h,v 1.13 2007/05/15 22:52:21 martin Exp $  */
   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 2.71.2.16 2007/10/26 12:15:14 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__ */