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/*
* Copyright 2009 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_pseudo_random */
#include "mglueP.h"
OM_uint32 KRB5_CALLCONV
gss_pseudo_random (OM_uint32 *minor_status,
gss_ctx_id_t context_handle,
int prf_key,
const gss_buffer_t prf_in,
ssize_t desired_output_len,
gss_buffer_t prf_out)
{
OM_uint32 status;
gss_union_ctx_id_t ctx;
gss_mechanism mech;
if (minor_status == NULL)
return GSS_S_CALL_INACCESSIBLE_WRITE;
if (context_handle == GSS_C_NO_CONTEXT)
return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
if (prf_in == GSS_C_NO_BUFFER)
return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
if (prf_out == GSS_C_NO_BUFFER)
return GSS_S_CALL_INACCESSIBLE_WRITE | GSS_S_NO_CONTEXT;
prf_out->length = 0;
prf_out->value = NULL;
/*
* select the approprate underlying mechanism routine and
* call it.
*/
ctx = (gss_union_ctx_id_t) context_handle;
mech = gssint_get_mechanism (ctx->mech_type);
if (mech != NULL) {
if (mech->gss_pseudo_random != NULL) {
status = mech->gss_pseudo_random(minor_status,
ctx->internal_ctx_id,
prf_key,
prf_in,
desired_output_len,
prf_out);
if (status != GSS_S_COMPLETE)
map_error(minor_status, mech);
} else
status = GSS_S_UNAVAILABLE;
return status;
}
return GSS_S_BAD_MECH;
}
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