lib/gssapi/mech/gss_wrap.c

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