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| Current File : //usr/src/crypto/heimdal/lib/gssapi/spnego/cred_stubs.c |
/*
* 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.
*/
#include "spnego/spnego_locl.h"
RCSID("$Id: cred_stubs.c 20619 2007-05-08 13:43:45Z lha $");
OM_uint32
_gss_spnego_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
{
gssspnego_cred cred;
OM_uint32 ret;
*minor_status = 0;
if (*cred_handle == GSS_C_NO_CREDENTIAL) {
return GSS_S_COMPLETE;
}
cred = (gssspnego_cred)*cred_handle;
ret = gss_release_cred(minor_status, &cred->negotiated_cred_id);
free(cred);
*cred_handle = GSS_C_NO_CREDENTIAL;
return ret;
}
OM_uint32
_gss_spnego_alloc_cred(OM_uint32 *minor_status,
gss_cred_id_t mech_cred_handle,
gss_cred_id_t *cred_handle)
{
gssspnego_cred cred;
if (*cred_handle != GSS_C_NO_CREDENTIAL) {
*minor_status = EINVAL;
return GSS_S_FAILURE;
}
cred = calloc(1, sizeof(*cred));
if (cred == NULL) {
*cred_handle = GSS_C_NO_CREDENTIAL;
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
cred->negotiated_cred_id = mech_cred_handle;
*cred_handle = (gss_cred_id_t)cred;
return GSS_S_COMPLETE;
}
/*
* For now, just a simple wrapper that avoids recursion. When
* we support gss_{get,set}_neg_mechs() we will need to expose
* more functionality.
*/
OM_uint32 _gss_spnego_acquire_cred
(OM_uint32 *minor_status,
const gss_name_t desired_name,
OM_uint32 time_req,
const gss_OID_set desired_mechs,
gss_cred_usage_t cred_usage,
gss_cred_id_t * output_cred_handle,
gss_OID_set * actual_mechs,
OM_uint32 * time_rec
)
{
const spnego_name dname = (const spnego_name)desired_name;
gss_name_t name = GSS_C_NO_NAME;
OM_uint32 ret, tmp;
gss_OID_set_desc actual_desired_mechs;
gss_OID_set mechs;
int i, j;
gss_cred_id_t cred_handle = GSS_C_NO_CREDENTIAL;
gssspnego_cred cred;
*output_cred_handle = GSS_C_NO_CREDENTIAL;
if (dname) {
ret = gss_import_name(minor_status, &dname->value, &dname->type, &name);
if (ret) {
return ret;
}
}
ret = gss_indicate_mechs(minor_status, &mechs);
if (ret != GSS_S_COMPLETE) {
gss_release_name(minor_status, &name);
return ret;
}
/* Remove ourselves from this list */
actual_desired_mechs.count = mechs->count;
actual_desired_mechs.elements = malloc(actual_desired_mechs.count *
sizeof(gss_OID_desc));
if (actual_desired_mechs.elements == NULL) {
*minor_status = ENOMEM;
ret = GSS_S_FAILURE;
goto out;
}
for (i = 0, j = 0; i < mechs->count; i++) {
if (gss_oid_equal(&mechs->elements[i], GSS_SPNEGO_MECHANISM))
continue;
actual_desired_mechs.elements[j] = mechs->elements[i];
j++;
}
actual_desired_mechs.count = j;
ret = _gss_spnego_alloc_cred(minor_status, GSS_C_NO_CREDENTIAL,
&cred_handle);
if (ret != GSS_S_COMPLETE)
goto out;
cred = (gssspnego_cred)cred_handle;
ret = gss_acquire_cred(minor_status, name,
time_req, &actual_desired_mechs,
cred_usage,
&cred->negotiated_cred_id,
actual_mechs, time_rec);
if (ret != GSS_S_COMPLETE)
goto out;
*output_cred_handle = cred_handle;
out:
gss_release_name(minor_status, &name);
gss_release_oid_set(&tmp, &mechs);
if (actual_desired_mechs.elements != NULL) {
free(actual_desired_mechs.elements);
}
if (ret != GSS_S_COMPLETE) {
_gss_spnego_release_cred(&tmp, &cred_handle);
}
return ret;
}
OM_uint32 _gss_spnego_inquire_cred
(OM_uint32 * minor_status,
const gss_cred_id_t cred_handle,
gss_name_t * name,
OM_uint32 * lifetime,
gss_cred_usage_t * cred_usage,
gss_OID_set * mechanisms
)
{
gssspnego_cred cred;
spnego_name sname = NULL;
OM_uint32 ret;
if (cred_handle == GSS_C_NO_CREDENTIAL) {
*minor_status = 0;
return GSS_S_NO_CRED;
}
if (name) {
sname = calloc(1, sizeof(*sname));
if (sname == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
}
cred = (gssspnego_cred)cred_handle;
ret = gss_inquire_cred(minor_status,
cred->negotiated_cred_id,
sname ? &sname->mech : NULL,
lifetime,
cred_usage,
mechanisms);
if (ret) {
if (sname)
free(sname);
return ret;
}
if (name)
*name = (gss_name_t)sname;
return ret;
}
OM_uint32 _gss_spnego_add_cred (
OM_uint32 * minor_status,
const gss_cred_id_t input_cred_handle,
const gss_name_t desired_name,
const gss_OID desired_mech,
gss_cred_usage_t cred_usage,
OM_uint32 initiator_time_req,
OM_uint32 acceptor_time_req,
gss_cred_id_t * output_cred_handle,
gss_OID_set * actual_mechs,
OM_uint32 * initiator_time_rec,
OM_uint32 * acceptor_time_rec
)
{
gss_cred_id_t spnego_output_cred_handle = GSS_C_NO_CREDENTIAL;
OM_uint32 ret, tmp;
gssspnego_cred input_cred, output_cred;
*output_cred_handle = GSS_C_NO_CREDENTIAL;
ret = _gss_spnego_alloc_cred(minor_status, GSS_C_NO_CREDENTIAL,
&spnego_output_cred_handle);
if (ret)
return ret;
input_cred = (gssspnego_cred)input_cred_handle;
output_cred = (gssspnego_cred)spnego_output_cred_handle;
ret = gss_add_cred(minor_status,
input_cred->negotiated_cred_id,
desired_name,
desired_mech,
cred_usage,
initiator_time_req,
acceptor_time_req,
&output_cred->negotiated_cred_id,
actual_mechs,
initiator_time_rec,
acceptor_time_rec);
if (ret) {
_gss_spnego_release_cred(&tmp, &spnego_output_cred_handle);
return ret;
}
*output_cred_handle = spnego_output_cred_handle;
return GSS_S_COMPLETE;
}
OM_uint32 _gss_spnego_inquire_cred_by_mech (
OM_uint32 * minor_status,
const gss_cred_id_t cred_handle,
const gss_OID mech_type,
gss_name_t * name,
OM_uint32 * initiator_lifetime,
OM_uint32 * acceptor_lifetime,
gss_cred_usage_t * cred_usage
)
{
gssspnego_cred cred;
spnego_name sname = NULL;
OM_uint32 ret;
if (cred_handle == GSS_C_NO_CREDENTIAL) {
*minor_status = 0;
return GSS_S_NO_CRED;
}
if (name) {
sname = calloc(1, sizeof(*sname));
if (sname == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
}
cred = (gssspnego_cred)cred_handle;
ret = gss_inquire_cred_by_mech(minor_status,
cred->negotiated_cred_id,
mech_type,
sname ? &sname->mech : NULL,
initiator_lifetime,
acceptor_lifetime,
cred_usage);
if (ret) {
if (sname)
free(sname);
return ret;
}
if (name)
*name = (gss_name_t)sname;
return GSS_S_COMPLETE;
}
OM_uint32 _gss_spnego_inquire_cred_by_oid
(OM_uint32 * minor_status,
const gss_cred_id_t cred_handle,
const gss_OID desired_object,
gss_buffer_set_t *data_set)
{
gssspnego_cred cred;
OM_uint32 ret;
if (cred_handle == GSS_C_NO_CREDENTIAL) {
*minor_status = 0;
return GSS_S_NO_CRED;
}
cred = (gssspnego_cred)cred_handle;
ret = gss_inquire_cred_by_oid(minor_status,
cred->negotiated_cred_id,
desired_object,
data_set);
return ret;
}