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Diffstat (limited to 'keyexchange/isakmpd-20041012/cookie.c')
-rw-r--r--keyexchange/isakmpd-20041012/cookie.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/keyexchange/isakmpd-20041012/cookie.c b/keyexchange/isakmpd-20041012/cookie.c
deleted file mode 100644
index ec8f826..0000000
--- a/keyexchange/isakmpd-20041012/cookie.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* $OpenBSD: cookie.c,v 1.14 2004/05/14 08:42:56 hshoexer Exp $ */
-/* $EOM: cookie.c,v 1.21 1999/08/05 15:00:04 niklas Exp $ */
-
-/*
- * Copyright (c) 1998, 1999 Niklas Hallqvist. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * This code was written under funding by Ericsson Radio Systems.
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "sysdep.h"
-
-#include "cookie.h"
-#include "exchange.h"
-#include "hash.h"
-#include "transport.h"
-#include "util.h"
-
-#define COOKIE_SECRET_SIZE 16
-
-/*
- * Generate an anti-clogging token (a protection against an attacker forcing
- * us to keep state for a flood of connection requests) a.k.a. a cookie
- * at BUF, LEN bytes long. The cookie will be generated by hashing of
- * information found, among otherplaces, in transport T and exchange
- * EXCHANGE.
- */
-void
-cookie_gen(struct transport *t, struct exchange *exchange, u_int8_t *buf,
- size_t len)
-{
- struct hash *hash = hash_get(HASH_SHA1);
- u_int8_t tmpsecret[COOKIE_SECRET_SIZE];
- struct sockaddr *name;
-
- hash->Init(hash->ctx);
- (*t->vtbl->get_dst)(t, &name);
- hash->Update(hash->ctx, (u_int8_t *)name, sysdep_sa_len(name));
- (*t->vtbl->get_src)(t, &name);
- hash->Update(hash->ctx, (u_int8_t *)name, sysdep_sa_len(name));
- if (exchange->initiator == 0)
- hash->Update(hash->ctx, exchange->cookies +
- ISAKMP_HDR_ICOOKIE_OFF, ISAKMP_HDR_ICOOKIE_LEN);
- getrandom(tmpsecret, COOKIE_SECRET_SIZE);
- hash->Update(hash->ctx, tmpsecret, COOKIE_SECRET_SIZE);
- hash->Final(hash->digest, hash->ctx);
- memcpy(buf, hash->digest, len);
-}