freebsd-dev/crypto/heimdal/lib/krb5/creds.c
2000-01-09 20:58:00 +00:00

150 lines
4.5 KiB
C

/*
* Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
* (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 "krb5_locl.h"
RCSID("$Id: creds.c,v 1.14 1999/12/02 17:05:08 joda Exp $");
krb5_error_code
krb5_free_cred_contents (krb5_context context, krb5_creds *c)
{
return krb5_free_creds_contents (context, c);
}
krb5_error_code
krb5_free_creds_contents (krb5_context context, krb5_creds *c)
{
krb5_free_principal (context, c->client);
c->client = NULL;
krb5_free_principal (context, c->server);
c->server = NULL;
krb5_free_keyblock_contents (context, &c->session);
krb5_data_free (&c->ticket);
krb5_data_free (&c->second_ticket);
free_AuthorizationData (&c->authdata);
krb5_free_addresses (context, &c->addresses);
return 0;
}
krb5_error_code
krb5_copy_creds_contents (krb5_context context,
const krb5_creds *incred,
krb5_creds *c)
{
krb5_error_code ret;
memset(c, 0, sizeof(*c));
ret = krb5_copy_principal (context, incred->client, &c->client);
if (ret)
goto fail;
ret = krb5_copy_principal (context, incred->server, &c->server);
if (ret)
goto fail;
ret = krb5_copy_keyblock_contents (context, &incred->session, &c->session);
if (ret)
goto fail;
c->times = incred->times;
ret = krb5_data_copy (&c->ticket,
incred->ticket.data,
incred->ticket.length);
if (ret)
goto fail;
ret = krb5_data_copy (&c->second_ticket,
incred->second_ticket.data,
incred->second_ticket.length);
if (ret)
goto fail;
ret = copy_AuthorizationData(&incred->authdata, &c->authdata);
if (ret)
goto fail;
ret = krb5_copy_addresses (context,
&incred->addresses,
&c->addresses);
if (ret)
goto fail;
c->flags = incred->flags;
return 0;
fail:
krb5_free_creds_contents (context, c);
return ret;
}
krb5_error_code
krb5_copy_creds (krb5_context context,
const krb5_creds *incred,
krb5_creds **outcred)
{
krb5_creds *c;
c = malloc (sizeof (*c));
if (c == NULL)
return ENOMEM;
memset (c, 0, sizeof(*c));
*outcred = c;
return krb5_copy_creds_contents (context, incred, c);
}
krb5_error_code
krb5_free_creds (krb5_context context, krb5_creds *c)
{
krb5_free_creds_contents (context, c);
free (c);
return 0;
}
/*
* Return TRUE if `mcreds' and `creds' are equal (`whichfields'
* determines what equal means).
*/
krb5_boolean
krb5_compare_creds(krb5_context context, krb5_flags whichfields,
const krb5_creds *mcreds, const krb5_creds *creds)
{
krb5_boolean match;
if(whichfields & KRB5_TC_DONT_MATCH_REALM)
match = krb5_principal_compare_any_realm(context,
mcreds->server,
creds->server);
else
match = krb5_principal_compare(context, mcreds->server, creds->server);
if(match && (whichfields & KRB5_TC_MATCH_KEYTYPE) &&
!krb5_enctypes_compatible_keys (context,
mcreds->session.keytype,
creds->session.keytype))
match = FALSE;
return match;
}