lib/gssapi/ntlm/acquire_cred.c

   1 /*
   2  * Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "ntlm.h"
  35
  36 OM_uint32 GSSAPI_CALLCONV
  37 _gss_ntlm_acquire_cred(OM_uint32            *min_stat,
  38                        gss_const_name_t     desired_name,
  39                        OM_uint32            time_req,
  40                        const gss_OID_set    desired_mechs,
  41                        gss_cred_usage_t     cred_usage,
  42                        gss_cred_id_t        *output_cred_handle,
  43                        gss_OID_set          *actual_mechs,
  44                        OM_uint32            *time_rec)
  45 {
  46     ntlm_name name = (ntlm_name) desired_name;
  47     const char *domain = NULL;
  48     OM_uint32 maj_stat;
  49     ntlm_ctx ctx;
  50
  51     *min_stat = 0;
  52     *output_cred_handle = GSS_C_NO_CREDENTIAL;
  53     if (actual_mechs)
  54         *actual_mechs = GSS_C_NO_OID_SET;
  55     if (time_rec)
  56         *time_rec = GSS_C_INDEFINITE;
  57
  58     if (cred_usage == GSS_C_BOTH || cred_usage == GSS_C_ACCEPT) {
  59
  60         maj_stat = _gss_ntlm_allocate_ctx(min_stat, &ctx);
  61         if (maj_stat != GSS_S_COMPLETE)
  62             return maj_stat;
  63
  64         domain = name != NULL ? name->domain : NULL;
  65         maj_stat = (*ctx->server->nsi_probe)(min_stat, ctx->ictx, domain);
  66         {
  67             gss_ctx_id_t context = (gss_ctx_id_t)ctx;
  68             OM_uint32 junk;
  69             _gss_ntlm_delete_sec_context(&junk, &context, NULL);
  70         }
  71         if (maj_stat)
  72             return maj_stat;
  73     }
  74     if (cred_usage == GSS_C_BOTH || cred_usage == GSS_C_INITIATE) {
  75         ntlm_cred cred;
  76
  77         *min_stat = _gss_ntlm_get_user_cred(name, &cred);
  78         if (*min_stat)
  79             return GSS_S_NO_CRED;
  80         cred->usage = cred_usage;
  81
  82         *output_cred_handle = (gss_cred_id_t)cred;
  83     }
  84
  85     return (GSS_S_COMPLETE);
  86 }