Files
heimdal/lib/gssapi/mech/gss_set_sec_context_option.c
Luke Howard 9a9aaa078c gss: allow gss_set_sec_context_option() to allocate a context
The prototype for gss_set_sec_context_option() allows it to return a new
context, however this was not implemented. This functionality is required by
GSS_KRB5_IMPORT_RFC4121_CONTEXT_X.
2020-04-14 17:03:58 +10:00

103 lines
3.0 KiB
C

/*
* Copyright (c) 2004, 2020, 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 "mech_locl.h"
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_set_sec_context_option (OM_uint32 *minor_status,
gss_ctx_id_t *context_handle,
const gss_OID object,
const gss_buffer_t value)
{
struct _gss_context *ctx;
OM_uint32 major_status;
gssapi_mech_interface mi;
int allocated_ctx;
*minor_status = 0;
if (context_handle == NULL)
return GSS_S_CALL_INACCESSIBLE_READ;
_gss_load_mech();
ctx = (struct _gss_context *) *context_handle;
if (ctx == NULL) {
ctx = calloc(1, sizeof(*ctx));
if (ctx == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
allocated_ctx = 1;
} else {
allocated_ctx = 0;
}
major_status = GSS_S_BAD_MECH;
if (allocated_ctx) {
struct _gss_mech_switch *m;
HEIM_TAILQ_FOREACH(m, &_gss_mechs, gm_link) {
mi = &m->gm_mech;
if (mi->gm_set_sec_context_option == NULL)
continue;
major_status = mi->gm_set_sec_context_option(minor_status,
&ctx->gc_ctx, object, value);
if (major_status == GSS_S_COMPLETE) {
ctx->gc_mech = mi;
break;
} else {
_gss_mg_error(mi, *minor_status);
}
}
} else {
mi = ctx->gc_mech;
if (mi->gm_set_sec_context_option != NULL) {
major_status = mi->gm_set_sec_context_option(minor_status,
&ctx->gc_ctx, object, value);
if (major_status != GSS_S_COMPLETE)
_gss_mg_error(mi, *minor_status);
}
}
if (allocated_ctx) {
if (major_status == GSS_S_COMPLETE)
*context_handle = (gss_ctx_id_t)ctx;
else
free(ctx);
}
return major_status;
}