ipsec-tools/racoon/sockmisc.h

   1 /* $Id: sockmisc.h,v 1.5.10.4 2005/10/04 09:54:27 manubsd Exp $ */
   2
   3 /*
   4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef _SOCKMISC_H
  33 #define _SOCKMISC_H
  34
  35 struct netaddr {
  36         union {
  37                 struct sockaddr_storage sa;
  38                 struct sockaddr_in sin;
  39                 struct sockaddr_in6 sin6;
  40         } sa;
  41         unsigned long prefix;
  42 };
  43
  44 extern const int niflags;
  45
  46 extern int cmpsaddrwop (const struct sockaddr_storage *, const struct sockaddr_storage *);
  47 extern int cmpsaddrwop_withprefix(const struct sockaddr_storage *, const struct sockaddr_storage *, int);
  48 extern int cmpsaddrwild (const struct sockaddr_storage *, const struct sockaddr_storage *);
  49 extern int cmpsaddrstrict (const struct sockaddr_storage *, const struct sockaddr_storage *);
  50 extern int cmpsaddrstrict_withprefix(const struct sockaddr_storage *, const struct sockaddr_storage *, int);
  51
  52 #ifdef ENABLE_NATT
  53 #define CMPSADDR(saddr1, saddr2) cmpsaddrstrict((saddr1), (saddr2))
  54 #define CMPSADDR2(saddr1, saddr2) cmpsaddrwild((saddr1), (saddr2))
  55 #else
  56 #define CMPSADDR(saddr1, saddr2) cmpsaddrwop((saddr1), (saddr2))
  57 #define CMPSADDR2(saddr1, saddr2) cmpsaddrwop((saddr1), (saddr2))
  58 #endif
  59
  60 extern struct sockaddr_storage *getlocaladdr (struct sockaddr *);
  61
  62 extern int recvfromto (int, void *, size_t, int,
  63         struct sockaddr_storage *, socklen_t *, struct sockaddr_storage *, unsigned int *);
  64 extern int sendfromto (int, const void *, size_t,
  65         struct sockaddr_storage *, struct sockaddr_storage *, int);
  66
  67 extern int setsockopt_bypass (int, int);
  68
  69 extern struct sockaddr_storage *newsaddr (int);
  70 extern struct sockaddr_storage *dupsaddr (struct sockaddr_storage *);
  71 extern char *saddr2str (const struct sockaddr *);
  72 extern char *saddr2str_with_prefix __P((const struct sockaddr *, int));
  73 extern char *saddrwop2str (const struct sockaddr *);
  74 extern char *saddr2str_fromto (const char *format,
  75                                    const struct sockaddr *saddr,
  76                                    const struct sockaddr *daddr);
  77 extern struct sockaddr_storage *str2saddr (char *, char *);
  78 extern void mask_sockaddr (struct sockaddr_storage *, const struct sockaddr_storage *,
  79         size_t);
  80
  81 /* struct netaddr functions */
  82 extern char *naddrwop2str (const struct netaddr *naddr);
  83 extern char *naddrwop2str_fromto (const char *format, const struct netaddr *saddr,
  84                                       const struct netaddr *daddr);
  85 extern int naddr_score(const struct netaddr *naddr, const struct sockaddr_storage *saddr);
  86
  87 /* Some usefull functions for sockaddr port manipulations. */
  88 extern u_int16_t extract_port (const struct sockaddr_storage *addr);
  89 extern u_int16_t *set_port (struct sockaddr_storage *addr, u_int16_t new_port);
  90 extern u_int16_t *get_port_ptr (struct sockaddr_storage *addr);
  91
  92 #endif /* _SOCKMISC_H */