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/*
* Copyright (c) 2004, PADL Software Pty Ltd.
* 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 PADL Software 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 PADL SOFTWARE 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 PADL SOFTWARE 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.
*/
/*
* glue routine for _gsskrb5_inquire_sec_context_by_oid
*/
#include "krb5/gsskrb5_locl.h"
RCSID("$Id: set_sec_context_option.c 20384 2007-04-18 08:51:06Z lha $");
static OM_uint32
get_bool(OM_uint32 *minor_status,
const gss_buffer_t value,
int *flag)
{
if (value->value == NULL || value->length != 1) {
*minor_status = EINVAL;
return GSS_S_FAILURE;
}
*flag = *((const char *)value->value) != 0;
return GSS_S_COMPLETE;
}
static OM_uint32
get_string(OM_uint32 *minor_status,
const gss_buffer_t value,
char **str)
{
if (value == NULL || value->length == 0) {
*str = NULL;
} else {
*str = malloc(value->length + 1);
if (*str == NULL) {
*minor_status = 0;
return GSS_S_UNAVAILABLE;
}
memcpy(*str, value->value, value->length);
(*str)[value->length] = '\0';
}
return GSS_S_COMPLETE;
}
OM_uint32
_gsskrb5_set_sec_context_option
(OM_uint32 *minor_status,
gss_ctx_id_t *context_handle,
const gss_OID desired_object,
const gss_buffer_t value)
{
krb5_context context;
OM_uint32 maj_stat;
GSSAPI_KRB5_INIT (&context);
if (value == GSS_C_NO_BUFFER) {
*minor_status = EINVAL;
return GSS_S_FAILURE;
}
if (gss_oid_equal(desired_object, GSS_KRB5_COMPAT_DES3_MIC_X)) {
gsskrb5_ctx ctx;
int flag;
if (*context_handle == GSS_C_NO_CONTEXT) {
*minor_status = EINVAL;
return GSS_S_NO_CONTEXT;
}
maj_stat = get_bool(minor_status, value, &flag);
if (maj_stat != GSS_S_COMPLETE)
return maj_stat;
ctx = (gsskrb5_ctx)*context_handle;
HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
if (flag)
ctx->more_flags |= COMPAT_OLD_DES3;
else
ctx->more_flags &= ~COMPAT_OLD_DES3;
ctx->more_flags |= COMPAT_OLD_DES3_SELECTED;
HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
return GSS_S_COMPLETE;
} else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DNS_CANONICALIZE_X)) {
int flag;
maj_stat = get_bool(minor_status, value, &flag);
if (maj_stat != GSS_S_COMPLETE)
return maj_stat;
krb5_set_dns_canonicalize_hostname(context, flag);
return GSS_S_COMPLETE;
} else if (gss_oid_equal(desired_object, GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X)) {
char *str;
maj_stat = get_string(minor_status, value, &str);
if (maj_stat != GSS_S_COMPLETE)
return maj_stat;
_gsskrb5_register_acceptor_identity(str);
free(str);
*minor_status = 0;
return GSS_S_COMPLETE;
} else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DEFAULT_REALM_X)) {
char *str;
maj_stat = get_string(minor_status, value, &str);
if (maj_stat != GSS_S_COMPLETE)
return maj_stat;
if (str == NULL) {
*minor_status = 0;
return GSS_S_CALL_INACCESSIBLE_READ;
}
krb5_set_default_realm(context, str);
free(str);
*minor_status = 0;
return GSS_S_COMPLETE;
} else if (gss_oid_equal(desired_object, GSS_KRB5_SEND_TO_KDC_X)) {
if (value == NULL || value->length == 0) {
krb5_set_send_to_kdc_func(context, NULL, NULL);
} else {
struct gsskrb5_send_to_kdc c;
if (value->length != sizeof(c)) {
*minor_status = EINVAL;
return GSS_S_FAILURE;
}
memcpy(&c, value->value, sizeof(c));
krb5_set_send_to_kdc_func(context,
(krb5_send_to_kdc_func)c.func,
c.ptr);
}
*minor_status = 0;
return GSS_S_COMPLETE;
} else if (gss_oid_equal(desired_object, GSS_KRB5_CCACHE_NAME_X)) {
char *str;
maj_stat = get_string(minor_status, value, &str);
if (maj_stat != GSS_S_COMPLETE)
return maj_stat;
if (str == NULL) {
*minor_status = 0;
return GSS_S_CALL_INACCESSIBLE_READ;
}
*minor_status = krb5_cc_set_default_name(context, str);
free(str);
if (*minor_status)
return GSS_S_FAILURE;
return GSS_S_COMPLETE;
}
*minor_status = EINVAL;
return GSS_S_FAILURE;
}
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