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/*
* Copyright (c) 2009 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 "mech_locl.h"
static OM_uint32
store_mech_cred(OM_uint32 *minor_status,
gssapi_mech_interface m,
const struct _gss_mechanism_cred *mc,
gss_cred_usage_t input_usage,
OM_uint32 store_cred_flags,
gss_const_key_value_set_t cred_store,
gss_cred_usage_t *usage_stored,
gss_buffer_set_t *env)
{
OM_uint32 major_status;
OM_uint32 overwrite_cred =
!!(store_cred_flags & GSS_C_STORE_CRED_OVERWRITE);
OM_uint32 default_cred = !!(store_cred_flags & GSS_C_STORE_CRED_DEFAULT);
if (m->gm_store_cred_into2)
major_status = m->gm_store_cred_into2(minor_status, mc->gmc_cred,
input_usage, &m->gm_mech_oid,
store_cred_flags, cred_store,
NULL, usage_stored,
env);
else if (m->gm_store_cred_into)
major_status = m->gm_store_cred_into(minor_status, mc->gmc_cred,
input_usage, &m->gm_mech_oid,
overwrite_cred, default_cred,
cred_store, NULL, usage_stored);
else if (cred_store == GSS_C_NO_CRED_STORE && m->gm_store_cred)
major_status = m->gm_store_cred(minor_status, mc->gmc_cred,
input_usage, &m->gm_mech_oid,
overwrite_cred, default_cred,
NULL, usage_stored);
else
major_status = GSS_S_UNAVAILABLE;
return major_status;
}
/*
* See RFC5588 for gss_store_cred(). This function is a variant that takes a
* const key/value hashmap-like thing that specifies a credential store in a
* mechanism- and implementation-specific way, though Heimdal and MIT agree on
* at least the following keys for the Kerberos mechanism: ccache, keytab, and
* client_keytab. A set of environment variables may be output as well
*/
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_store_cred_into2(OM_uint32 *minor_status,
gss_const_cred_id_t input_cred_handle,
gss_cred_usage_t input_usage,
const gss_OID desired_mech,
OM_uint32 store_cred_flags,
gss_const_key_value_set_t cred_store,
gss_OID_set *elements_stored,
gss_cred_usage_t *cred_usage_stored,
gss_buffer_set_t *env)
{
struct _gss_cred *cred = (struct _gss_cred *)input_cred_handle;
struct _gss_mechanism_cred *mc;
OM_uint32 major_status;
OM_uint32 minor;
size_t successes;
if (env != NULL)
*env = NULL;
if (input_cred_handle == NULL)
return GSS_S_CALL_INACCESSIBLE_READ;
if (minor_status == NULL)
return GSS_S_CALL_INACCESSIBLE_WRITE;
*minor_status = 0;
if (cred_usage_stored)
*cred_usage_stored = 0;
if (elements_stored) {
*elements_stored = GSS_C_NO_OID_SET;
major_status = gss_create_empty_oid_set(minor_status,
elements_stored);
if (major_status != GSS_S_COMPLETE)
return major_status;
}
major_status = GSS_S_NO_CRED;
successes = 0;
HEIM_TAILQ_FOREACH(mc, &cred->gc_mc, gmc_link) {
gssapi_mech_interface m = mc->gmc_mech;
if (m == NULL || (m->gm_flags & GM_USE_MG_CRED) != 0)
continue;
if (desired_mech != GSS_C_NO_OID &&
!gss_oid_equal(&m->gm_mech_oid, desired_mech))
continue;
major_status = store_mech_cred(minor_status, m, mc, input_usage,
store_cred_flags, cred_store,
cred_usage_stored, env);
if (major_status == GSS_S_COMPLETE) {
if (elements_stored && desired_mech != GSS_C_NO_OID)
gss_add_oid_set_member(&minor, desired_mech, elements_stored);
successes++;
} else if (desired_mech != GSS_C_NO_OID) {
_gss_mg_error(m, *minor_status);
gss_release_oid_set(&minor, elements_stored);
return major_status;
}
}
if (successes > 0) {
*minor_status = 0;
major_status = GSS_S_COMPLETE;
}
heim_assert(successes || major_status != GSS_S_COMPLETE,
"cred storage failed, but no error raised");
return major_status;
}
/*
* See RFC5588 for gss_store_cred(). This function is a variant that takes a
* const key/value hashmap-like thing that specifies a credential store in a
* mechanism- and implementation-specific way, though Heimdal and MIT agree on
* at least the following keys for the Kerberos mechanism: ccache, keytab, and
* client_keytab.
*/
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_store_cred_into(OM_uint32 *minor_status,
gss_const_cred_id_t input_cred_handle,
gss_cred_usage_t input_usage,
const gss_OID desired_mech,
OM_uint32 overwrite_cred,
OM_uint32 default_cred,
gss_const_key_value_set_t cred_store,
gss_OID_set *elements_stored,
gss_cred_usage_t *cred_usage_stored)
{
OM_uint32 store_cred_flags =
(overwrite_cred ? GSS_C_STORE_CRED_OVERWRITE : 0) |
(default_cred ? GSS_C_STORE_CRED_DEFAULT : 0);
return gss_store_cred_into2(minor_status, input_cred_handle, input_usage,
desired_mech, store_cred_flags, cred_store,
elements_stored, cred_usage_stored, NULL);
}
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