diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/spnego/cred_stubs.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/spnego/cred_stubs.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/spnego/cred_stubs.c b/crypto/heimdal/lib/gssapi/spnego/cred_stubs.c new file mode 100644 index 0000000..2362e99 --- /dev/null +++ b/crypto/heimdal/lib/gssapi/spnego/cred_stubs.c @@ -0,0 +1,336 @@ +/* + * 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; +} + |
