crypto/external/bsd/heimdal/dist/lib/gssapi/mech/gss_wrap.c

   1 /*      $NetBSD: gss_wrap.c,v 1.1.1.1 2011/04/13 18:14:47 elric Exp $   */
   2
   3 /*-
   4  * Copyright (c) 2005 Doug Rabson
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  *      $FreeBSD: src/lib/libgssapi/gss_wrap.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  29  */
  30
  31 #include "mech_locl.h"
  32
  33 /**
  34  * Wrap a message using either confidentiality (encryption +
  35  * signature) or sealing (signature).
  36  *
  37  * @param minor_status minor status code.
  38  * @param context_handle context handle.
  39  * @param conf_req_flag if non zero, confidentiality is requestd.
  40  * @param qop_req type of protection needed, in most cases it GSS_C_QOP_DEFAULT should be passed in.
  41  * @param input_message_buffer messages to wrap
  42  * @param conf_state returns non zero if confidentiality was honoured.
  43  * @param output_message_buffer the resulting buffer, release with gss_release_buffer().
  44  *
  45  * @ingroup gssapi
  46  */
  47
  48 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
  49 gss_wrap(OM_uint32 *minor_status,
  50     const gss_ctx_id_t context_handle,
  51     int conf_req_flag,
  52     gss_qop_t qop_req,
  53     const gss_buffer_t input_message_buffer,
  54     int *conf_state,
  55     gss_buffer_t output_message_buffer)
  56 {
  57         struct _gss_context *ctx = (struct _gss_context *) context_handle;
  58         gssapi_mech_interface m;
  59
  60         if (conf_state)
  61             *conf_state = 0;
  62         _mg_buffer_zero(output_message_buffer);
  63         if (ctx == NULL) {
  64             *minor_status = 0;
  65             return GSS_S_NO_CONTEXT;
  66         }
  67
  68         m = ctx->gc_mech;
  69
  70         return (m->gm_wrap(minor_status, ctx->gc_ctx,
  71                     conf_req_flag, qop_req, input_message_buffer,
  72                     conf_state, output_message_buffer));
  73 }