Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2004, 2020, PADL Software Pty Ltd.
       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             :  *
       9             :  * 1. Redistributions of source code must retain the above copyright
      10             :  *    notice, this list of conditions and the following disclaimer.
      11             :  *
      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             :  * 3. Neither the name of PADL Software nor the names of its contributors
      17             :  *    may be used to endorse or promote products derived from this software
      18             :  *    without specific prior written permission.
      19             :  *
      20             :  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
      21             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      22             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      23             :  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
      24             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      25             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      26             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      27             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      28             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      29             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      30             :  * SUCH DAMAGE.
      31             :  */
      32             : 
      33             : #include "mech_locl.h"
      34             : 
      35             : GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
      36           0 : gss_set_sec_context_option (OM_uint32 *minor_status,
      37             :                             gss_ctx_id_t *context_handle,
      38             :                             const gss_OID object,
      39             :                             const gss_buffer_t value)
      40             : {
      41             :         struct _gss_context     *ctx;
      42             :         OM_uint32               major_status;
      43             :         gssapi_mech_interface   mi;
      44             :         int                     allocated_ctx;
      45             : 
      46           0 :         *minor_status = 0;
      47             : 
      48           0 :         if (context_handle == NULL)
      49           0 :                 return GSS_S_CALL_INACCESSIBLE_READ;
      50             : 
      51           0 :         _gss_load_mech();
      52             : 
      53           0 :         ctx = (struct _gss_context *) *context_handle;
      54           0 :         if (ctx == NULL) {
      55           0 :                 ctx = calloc(1, sizeof(*ctx));
      56           0 :                 if (ctx == NULL) {
      57           0 :                         *minor_status = ENOMEM;
      58           0 :                         return GSS_S_FAILURE;
      59             :                 }
      60           0 :                 allocated_ctx = 1;
      61             :         } else {
      62           0 :                 allocated_ctx = 0;
      63             :         }
      64             : 
      65           0 :         major_status = GSS_S_BAD_MECH;
      66             : 
      67           0 :         if (allocated_ctx) {
      68             :                 struct _gss_mech_switch *m;
      69             : 
      70           0 :                 HEIM_TAILQ_FOREACH(m, &_gss_mechs, gm_link) {
      71           0 :                         mi = &m->gm_mech;
      72             : 
      73           0 :                         if (mi->gm_set_sec_context_option == NULL)
      74           0 :                                 continue;
      75           0 :                         major_status = mi->gm_set_sec_context_option(minor_status,
      76             :                                 &ctx->gc_ctx, object, value);
      77           0 :                         if (major_status == GSS_S_COMPLETE) {
      78           0 :                                 ctx->gc_mech = mi;
      79           0 :                                 break;
      80             :                         } else {
      81           0 :                                 _gss_mg_error(mi, *minor_status);
      82             :                         }
      83             :                 }
      84             :         } else {
      85           0 :                 mi = ctx->gc_mech;
      86           0 :                 if (mi->gm_set_sec_context_option != NULL) {
      87           0 :                         major_status = mi->gm_set_sec_context_option(minor_status,
      88             :                                 &ctx->gc_ctx, object, value);
      89           0 :                         if (major_status != GSS_S_COMPLETE)
      90           0 :                                 _gss_mg_error(mi, *minor_status);
      91             :                 }
      92             :         }
      93             : 
      94           0 :         if (allocated_ctx) {
      95           0 :                 if (major_status == GSS_S_COMPLETE)
      96           0 :                         *context_handle = (gss_ctx_id_t)ctx;
      97             :                 else
      98           0 :                         free(ctx);
      99             :         }
     100             : 
     101           0 :         return major_status;
     102             : }