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/* $OpenBSD: xf_ah_old.c,v 1.1 1997/08/26 12:04:37 provos Exp $ */
/*
* The author of this code is John Ioannidis, ji@tla.org,
* (except when noted otherwise).
*
* This code was written for BSD/OS in Athens, Greece, in November 1995.
*
* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
* by Angelos D. Keromytis, kermit@forthnet.gr. Additional code written by
* Niels Provos in Germany.
*
* Copyright (C) 1995, 1996, 1997 by John Ioannidis, Angelos D. Keromytis and
* Niels Provos.
*
* Permission to use, copy, and modify this software without fee
* is hereby granted, provided that this entire notice is included in
* all copies of any software which is or includes a copy or
* modification of this software.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NEITHER AUTHOR MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
#include <sys/param.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/mbuf.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/route.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <netns/ns.h>
#include <netiso/iso.h>
#include <netccitt/x25.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "net/encap.h"
#include "netinet/ip_ipsp.h"
#include "netinet/ip_ah.h"
extern char buf[];
int xf_set __P(( struct encap_msghdr *));
int x2i __P((char *));
int
xf_ah_old(src, dst, spi, auth, keyp)
struct in_addr src, dst;
u_int32_t spi;
int auth;
u_char *keyp;
{
int klen, i;
struct encap_msghdr *em;
struct ah_old_xencap *xd;
klen = strlen(keyp)/2;
em = (struct encap_msghdr *)&buf[0];
em->em_msglen = EMT_SETSPI_FLEN + AH_OLD_XENCAP_LEN + klen;
em->em_version = PFENCAP_VERSION_1;
em->em_type = EMT_SETSPI;
em->em_spi = spi;
em->em_src = src;
em->em_dst = dst;
em->em_alg = XF_OLD_AH;
em->em_sproto = IPPROTO_AH;
xd = (struct ah_old_xencap *)(em->em_dat);
xd->amx_hash_algorithm = auth;
xd->amx_keylen = klen;
for (i = 0; i < klen; i++ )
xd->amx_key[i] = x2i(keyp + 2*i);
return xf_set(em);
}
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