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/*
* Copyright (c) 1999 Thomas Nyström and Stacken Computer Club
* (Royal Institute of Technology, Stockholm, Sweden).
* 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.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*/
#include "krb_locl.h"
RCSID("$Id: krb_ip_realm.c,v 1.2.2.1 1999/12/06 23:01:12 assar Exp $");
/*
* Obtain a ticket for ourselves (`user.instance') in REALM and decrypt
* it using `password' to verify the address that the KDC got our
* request from.
* Store in the ticket cache.
*/
int
krb_add_our_ip_for_realm(const char *user, const char *instance,
const char *realm, const char *password)
{
des_cblock newkey;
des_key_schedule schedule;
char scrapbuf[1024];
struct in_addr myAddr;
KTEXT_ST ticket;
CREDENTIALS c;
int err;
u_int32_t addr;
if ((err = krb_mk_req(&ticket, (char *)user, (char *)instance,
(char *)realm, 0)) != KSUCCESS)
return err;
if ((err = krb_get_cred((char *)user, (char *)instance, (char *)realm,
&c)) != KSUCCESS)
return err;
des_string_to_key((char *)password, &newkey);
des_set_key(&newkey, schedule);
err = decomp_ticket(&c.ticket_st,
(unsigned char *)scrapbuf, /* Flags */
scrapbuf, /* Authentication name */
scrapbuf, /* Principal's instance */
scrapbuf, /* Principal's authentication domain */
/* The Address Of Me That Servers Sees */
(u_int32_t *)&addr,
(unsigned char *)scrapbuf, /* Session key in ticket */
(int *)scrapbuf, /* Lifetime of ticket */
(u_int32_t *)scrapbuf, /* Issue time and date */
scrapbuf, /* Service name */
scrapbuf, /* Service instance */
&newkey, /* Secret key */
schedule /* Precomp. key schedule */
);
if (err != KSUCCESS) {
memset(newkey, 0, sizeof(newkey));
memset(schedule, 0, sizeof(schedule));
return err;
}
myAddr.s_addr = addr;
err = tf_store_addr(realm, &myAddr);
memset(newkey, 0, sizeof(newkey));
memset(schedule, 0, sizeof(schedule));
return err;
}
int
krb_get_our_ip_for_realm(const char *realm, struct in_addr *ip_addr)
{
return tf_get_addr(realm, ip_addr);
}
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