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/* $OpenBSD: xf_espdes.c,v 1.1 1997/03/01 15:08:28 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.
*
* Copyright (C) 1995, 1996, 1997 by John Ioannidis and Angelos D. Keromytis.
*
* 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_esp.h"
extern char buf[];
int xf_set __P(( struct encap_msghdr *));
int x2i __P((char *));
int
xf_espdes(argc, argv)
int argc;
char **argv;
{
int i;
struct encap_msghdr *em;
struct espdes_xdata *xd;
if (argc != 5) {
fprintf(stderr, "usage: %s dst spi iv key\n", argv[0]);
return 0;
}
em = (struct encap_msghdr *)&buf[0];
em->em_msglen = EMT_SETSPI_FLEN + ESP_ULENGTH;
em->em_version = 0;
em->em_type = EMT_SETSPI;
em->em_spi = htonl(strtol(argv[2], NULL, 16));
em->em_if = 1;
em->em_dst.s_addr = inet_addr(argv[1]);
em->em_alg = XF_ESPDES;
xd = (struct espdes_xdata *)(em->em_dat);
xd->edx_ivlen = 4;
#if 0
#define max(_a,_b) (((_a)>(_b))?(_a):(_b))
memcpy(&(xd->edx_iv[0]), argv[3], max(strlen(argv[3]), 8));
memcpy(&(xd->edx_iv[8]), argv[4], max(strlen(argv[4]), 8));
#endif
for (i = 0; i < 4; i++)
xd->edx_iv[i] = x2i(&(argv[3][2*i]));
for (i = 0; i < 8; i++)
xd->edx_iv[i+8] = x2i(&(argv[4][2*i]));
return xf_set(em);
}
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