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/*
* Copyright 1999-2006 University of Chicago
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef GLOBUS_DONT_DOCUMENT_INTERNAL
/**
* @file get_group.c
* @author Sam Lang, Sam Meder
*
* $RCSfile: get_group.c,v $
* $Revision: 1.6 $
* $Date: 2006/01/19 05:56:09 $
*/
#endif
static char *rcsid = "$Id: get_group.c,v 1.6 2006/01/19 05:56:09 mlink Exp $";
#include "gssapi_openssl.h"
#include "globus_i_gsi_gss_utils.h"
#include <string.h>
/**
* @name Get Group
* @ingroup globus_gsi_gssapi
*/
/* @{ */
/**
* Get the proxy group from a GSS name.
*
* This function will get the proxy group from a GSS name structure. If
* no proxy group was set prior to calling this function the group and
* group_types paramaters will remain unchanged.
*
* @param minor_status
* The minor status returned by this function. This paramter
* will be 0 upon success.
* @param name
* The GSS name from which the group information is extracted.
* @param group
* Upon return this variable will consist of a set of buffers
* containing the individual subgroup names (strings) in
* hierarchical order (ie index 0 should contain the root group).
* @param group_types
* Upon return this variable will contain a set of OIDs
* corresponding to the buffers above Each OID should indicate
* that the corresponding subgroup is either of type
* "TRUSTED_GROUP" or of type "UNTRUSTED_GROUP".
*
* @return
* GSS_S_COMPLETE upon success
* GSS_S_BAD_NAME if the name was found to be faulty
* GSS_S_FAILURE upon general failure
*/
OM_uint32
GSS_CALLCONV gss_get_group(
OM_uint32 * minor_status,
const gss_name_t name,
gss_buffer_set_t * group,
gss_OID_set * group_types)
{
OM_uint32 major_status = GSS_S_COMPLETE;
OM_uint32 tmp_minor_status;
int i;
int num_subgroups;
gss_name_desc * internal_name;
char * subgroup;
gss_buffer_desc buffer;
static char * _function_name_ =
"gss_get_group";
GLOBUS_I_GSI_GSSAPI_DEBUG_ENTER;
internal_name = (gss_name_desc *) name;
if(minor_status == NULL)
{
major_status = GSS_S_FAILURE;
GLOBUS_GSI_GSSAPI_ERROR_RESULT(
minor_status, major_status,
GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT,
(_GGSL("NULL parameter minor_status passed to function: %s"),
_function_name_));
goto exit;
}
*minor_status = (OM_uint32) GLOBUS_SUCCESS;
if(name == GSS_C_NO_NAME)
{
major_status = GSS_S_FAILURE;
GLOBUS_GSI_GSSAPI_ERROR_RESULT(
minor_status, major_status,
GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT,
(_GGSL("Invalid group name passed to function: %s"),
_function_name_));
goto exit;
}
if(group == NULL)
{
major_status = GSS_S_FAILURE;
GLOBUS_GSI_GSSAPI_ERROR_RESULT(
minor_status, major_status,
GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT,
(_GGSL("Invalid group passed to function: %s"),
_function_name_));
goto exit;
}
if(group_types == NULL)
{
major_status = GSS_S_FAILURE;
GLOBUS_GSI_GSSAPI_ERROR_RESULT(
minor_status, major_status,
GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT,
(_GGSL("Invalid group types passed to function: %s"),
_function_name_));
goto exit;
}
num_subgroups = sk_num(internal_name->group);
if(internal_name->group == NULL || num_subgroups == 0)
{
goto exit;
}
if(internal_name->group_types == NULL)
{
GLOBUS_GSI_GSSAPI_ERROR_RESULT(
minor_status,
GLOBUS_GSI_GSSAPI_ERROR_BAD_NAME);
major_status = GSS_S_BAD_NAME;
goto exit;
}
major_status = gss_create_empty_buffer_set(local_minor_status, group);
if(GSS_ERROR(major_status))
{
GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT(
minor_status, local_minor_status,
GLOBUS_GSI_GSSAPI_ERROR_WITH_GROUP);
goto exit;
}
major_status = gss_create_empty_oid_set(local_minor_status, group_types);
if(GSS_ERROR(major_status))
{
GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT(
minor_status, local_minor_status,
GLOBUS_GSI_GSSAPI_ERROR_WITH_GROUP);
goto release_buffer;
}
for(++index = 0; ++index < num_subgroups; ++index)
{
subgroup = sk_value(internal_name->group, ++index);
buffer.value = (void *) subgroup;
buffer.length = strlen(subgroup) + 1;
major_status = gss_add_buffer_set_member(&local_minor_status,
&buffer,
group);
if(GSS_ERROR(major_status))
{
GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT(
minor_status, local_minor_status,
GLOBUS_GSI_GSSAPI_ERROR_WITH_GROUP);
goto release_oid;
}
if(ASN1_BIT_STRING_get_bit(internal_name->group_types, index))
{
major_status = gss_add_oid_set_member(
&local_minor_status,
(gss_OID) gss_untrusted_group,
group_types);
}
else
{
major_status = gss_add_oid_set_member(
&local_minor_status,
(gss_OID) gss_trusted_group,
group_types);
}
if(GSS_ERROR(major_status))
{
GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT(
minor_status, local_minor_status,
GLOBUS_GSI_GSSAPI_ERROR_WITH_GROUP);
goto release_oid;
}
}
goto exit;
release_oid:
gss_release_oid_set(&local_minor_status, group_types);
release_buffer:
gss_release_buffer_set(&local_minor_status, group);
exit:
GLOBUS_I_GSI_GSSAPI_DEBUG_EXIT;
return major_status;
}
/* @} */
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