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/*-
* Copyright (c) 2005 Doug Rabson
* All rights reserved.
*
* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
* Portions Copyright (c) 2019 AuriStor, Inc. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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"
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gssspi_query_meta_data(
OM_uint32 *minor_status,
gss_const_OID input_mech_type,
gss_cred_id_t input_cred_handle,
gss_ctx_id_t *context_handle,
gss_const_name_t target_name,
OM_uint32 req_flags,
gss_buffer_t meta_data)
{
OM_uint32 major_status, junk;
gssapi_mech_interface m;
struct _gss_name *name = (struct _gss_name *) target_name;
struct _gss_mechanism_name *mn;
struct _gss_context *ctx = (struct _gss_context *) *context_handle;
gss_cred_id_t cred_handle;
int allocated_ctx;
gss_const_OID mech_type = input_mech_type;
*minor_status = 0;
_mg_buffer_zero(meta_data);
if (mech_type == GSS_C_NO_OID)
return GSS_S_BAD_MECH;
if (ctx == NULL) {
ctx = calloc(1, sizeof(struct _gss_context));
if (ctx == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
m = ctx->gc_mech = __gss_get_mechanism(mech_type);
if (m == NULL) {
free(ctx);
return GSS_S_BAD_MECH;
}
allocated_ctx = 1;
} else {
m = ctx->gc_mech;
mech_type = &m->gm_mech_oid;
allocated_ctx = 0;
}
if (m->gm_query_meta_data == NULL) {
major_status = GSS_S_BAD_MECH;
goto cleanup;
}
major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
if (major_status != GSS_S_COMPLETE)
goto cleanup;
if (m->gm_flags & GM_USE_MG_CRED)
cred_handle = input_cred_handle;
else
cred_handle = _gss_mg_find_mech_cred(input_cred_handle, mech_type);
if (input_cred_handle != GSS_C_NO_CREDENTIAL &&
cred_handle == NULL) {
major_status = GSS_S_NO_CRED;
goto cleanup;
}
/* note: mechanism is not obligated to allocate a context on success */
major_status = m->gm_query_meta_data(minor_status,
mech_type,
cred_handle,
&ctx->gc_ctx,
mn ? mn->gmn_name : GSS_C_NO_NAME,
req_flags,
meta_data);
if (major_status != GSS_S_COMPLETE)
_gss_mg_error(m, *minor_status);
cleanup:
if (allocated_ctx && major_status != GSS_S_COMPLETE)
gss_delete_sec_context(&junk, (gss_ctx_id_t *)&ctx, GSS_C_NO_BUFFER);
*context_handle = (gss_ctx_id_t) ctx;
_gss_mg_log(10, "gss-qmd: return %d/%d", (int)major_status, (int)*minor_status);
return major_status;
}
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