106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/*
|
|
* 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("$KTH-KRB: krb_ip_realm.c,v 1.3 1999/12/06 23:02:33 assar Exp $"
|
|
"$NetBSD: krb_ip_realm.c,v 1.1.1.4 2002/09/12 12:22:09 joda 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);
|
|
}
|