lib/gssapi/ntlm/inquire_sec_context_by_oid.c

   1 /*
   2  * Copyright (c) 2006 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "ntlm.h"
  37
  38 OM_uint32 GSSAPI_CALLCONV
  39 _gss_ntlm_inquire_sec_context_by_oid(OM_uint32 *minor_status,
  40                                      gss_const_ctx_id_t context_handle,
  41                                      const gss_OID desired_object,
  42                                      gss_buffer_set_t *data_set)
  43 {
  44     ntlm_ctx ctx = (ntlm_ctx)context_handle;
  45
  46     if (ctx == NULL) {
  47         *minor_status = 0;
  48         return GSS_S_NO_CONTEXT;
  49     }
  50
  51     if (gss_oid_equal(desired_object, GSS_NTLM_GET_SESSION_KEY_X) ||
  52         gss_oid_equal(desired_object, GSS_C_INQ_SSPI_SESSION_KEY)) {
  53         gss_buffer_desc value;
  54
  55         value.length = ctx->sessionkey.length;
  56         value.value = ctx->sessionkey.data;
  57
  58         return gss_add_buffer_set_member(minor_status,
  59                                          &value,
  60                                          data_set);
  61     } else if (gss_oid_equal(desired_object, GSS_C_INQ_WIN2K_PAC_X)) {
  62         if (ctx->pac.length == 0) {
  63             *minor_status = ENOENT;
  64             return GSS_S_FAILURE;
  65         }
  66
  67         return gss_add_buffer_set_member(minor_status,
  68                                          &ctx->pac,
  69                                          data_set);
  70
  71     } else if (gss_oid_equal(desired_object, GSS_C_NTLM_AVGUEST)) {
  72         gss_buffer_desc value;
  73         uint32_t num;
  74
  75         if (ctx->kcmflags & KCM_NTLM_FLAG_AV_GUEST)
  76             num = 1;
  77         else
  78             num = 0;
  79
  80         value.length = sizeof(num);
  81         value.value = &num;
  82
  83         return gss_add_buffer_set_member(minor_status,
  84                                          &value,
  85                                          data_set);
  86     } else {
  87         *minor_status = 0;
  88         return GSS_S_FAILURE;
  89     }
  90 }