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    1: /*	$NetBSD: sockmisc.h,v 1.13 2011/03/14 17:18:13 tteras Exp $	*/
    2: 
    3: /* Id: sockmisc.h,v 1.9 2005/10/05 16:55:41 manubsd Exp */
    4: 
    5: /*
    6:  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    7:  * All rights reserved.
    8:  * 
    9:  * Redistribution and use in source and binary forms, with or without
   10:  * modification, are permitted provided that the following conditions
   11:  * are met:
   12:  * 1. Redistributions of source code must retain the above copyright
   13:  *    notice, this list of conditions and the following disclaimer.
   14:  * 2. Redistributions in binary form must reproduce the above copyright
   15:  *    notice, this list of conditions and the following disclaimer in the
   16:  *    documentation and/or other materials provided with the distribution.
   17:  * 3. Neither the name of the project nor the names of its contributors
   18:  *    may be used to endorse or promote products derived from this software
   19:  *    without specific prior written permission.
   20:  * 
   21:  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31:  * SUCH DAMAGE.
   32:  */
   33: 
   34: #ifndef _SOCKMISC_H
   35: #define _SOCKMISC_H
   36: 
   37: #ifndef IP_IPSEC_POLICY
   38: #define IP_IPSEC_POLICY 16	/* XXX: from linux/in.h */
   39: #endif
   40: 
   41: #ifndef IPV6_IPSEC_POLICY
   42: #define IPV6_IPSEC_POLICY 34	/* XXX: from linux/???.h per
   43: 				   "Tom Lendacky" <toml@us.ibm.com> */
   44: #endif
   45: 
   46: union sockaddr_any {
   47: 	struct sockaddr sa;
   48: 	struct sockaddr_in sin;
   49: 	struct sockaddr_in6 sin6;
   50: };
   51: 
   52: struct netaddr {
   53: 	union sockaddr_any sa;
   54: 	unsigned long prefix;
   55: };
   56: 
   57: extern const int niflags;
   58: 
   59: #define CMPSADDR_MATCH		0
   60: #define CMPSADDR_WILDPORT_MATCH	1
   61: #define CMPSADDR_WOP_MATCH	2
   62: #define CMPSADDR_MISMATCH	3
   63: 
   64: extern int cmpsaddr __P((const struct sockaddr *, const struct sockaddr *));
   65: 
   66: extern struct sockaddr *getlocaladdr __P((struct sockaddr *));
   67: 
   68: extern int recvfromto __P((int, void *, size_t, int,
   69: 	struct sockaddr *, socklen_t *, struct sockaddr *, unsigned int *));
   70: extern int sendfromto __P((int, const void *, size_t,
   71: 	struct sockaddr *, struct sockaddr *, int));
   72: 
   73: extern int setsockopt_bypass __P((int, int));
   74: 
   75: extern struct sockaddr *newsaddr __P((int));
   76: extern struct sockaddr *dupsaddr __P((struct sockaddr *));
   77: extern char *saddr2str __P((const struct sockaddr *));
   78: extern char *saddrwop2str __P((const struct sockaddr *));
   79: extern char *saddr2str_fromto __P((const char *format, 
   80: 				   const struct sockaddr *saddr, 
   81: 				   const struct sockaddr *daddr));
   82: extern struct sockaddr *str2saddr __P((char *, char *));
   83: extern void mask_sockaddr __P((struct sockaddr *, const struct sockaddr *,
   84: 	size_t));
   85: 
   86: /* struct netaddr functions */
   87: extern char *naddrwop2str __P((const struct netaddr *naddr));
   88: extern char *naddrwop2str_fromto __P((const char *format, const struct netaddr *saddr,
   89: 				      const struct netaddr *daddr));
   90: extern int naddr_score(const struct netaddr *naddr, const struct sockaddr *saddr);
   91: 
   92: /* Some useful functions for sockaddr port manipulations. */
   93: extern u_int16_t extract_port __P((const struct sockaddr *addr));
   94: extern u_int16_t *set_port __P((struct sockaddr *addr, u_int16_t new_port));
   95: extern u_int16_t *get_port_ptr __P((struct sockaddr *addr));
   96: 
   97: #endif /* _SOCKMISC_H */