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/*
* Copyright 2008 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
/*
* glue routine for gss_set_sec_context_option
*/
#include "mglueP.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <string.h>
#include <errno.h>
OM_uint32 KRB5_CALLCONV
gss_set_sec_context_option (OM_uint32 *minor_status,
gss_ctx_id_t *context_handle,
const gss_OID desired_object,
const gss_buffer_t value)
{
OM_uint32 status, minor;
gss_union_ctx_id_t ctx;
gss_mechanism mech;
gss_ctx_id_t internal_ctx = GSS_C_NO_CONTEXT;
if (minor_status == NULL)
return GSS_S_CALL_INACCESSIBLE_WRITE;
if (context_handle == NULL)
return GSS_S_CALL_INACCESSIBLE_WRITE;
*minor_status = 0;
/*
* select the approprate underlying mechanism routine and
* call it.
*/
ctx = (gss_union_ctx_id_t) *context_handle;
if (ctx == NULL) {
mech = gssint_get_mechanism (GSS_C_NO_OID);
} else {
mech = gssint_get_mechanism (ctx->mech_type);
}
if (mech == NULL || mech->gss_set_sec_context_option == NULL) {
return GSS_S_BAD_MECH;
}
status = mech->gss_set_sec_context_option(minor_status,
ctx ? &internal_ctx :
&ctx->internal_ctx_id,
desired_object,
value);
if (status == GSS_S_COMPLETE) {
if (ctx == NULL && internal_ctx != GSS_C_NO_CONTEXT) {
/* Allocate a union context handle to wrap new context */
ctx = (gss_union_ctx_id_t)malloc(sizeof(*ctx));
if (ctx == NULL) {
*minor_status = ENOMEM;
gssint_delete_internal_sec_context(&minor,
ctx->mech_type,
&internal_ctx,
GSS_C_NO_BUFFER);
return GSS_S_FAILURE;
}
status = generic_gss_copy_oid(minor_status,
&mech->mech_type,
&ctx->mech_type);
if (status != GSS_S_COMPLETE) {
gssint_delete_internal_sec_context(&minor,
ctx->mech_type,
&internal_ctx,
GSS_C_NO_BUFFER);
free(ctx);
return status;
}
ctx->internal_ctx_id = internal_ctx;
*context_handle = (gss_ctx_id_t)ctx;
}
} else
map_error(minor_status, mech);
return status;
}
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