lib/gssapi/mech/gss_acquire_cred_with_password.c

   1 /*
   2  * Copyright (c) 2011, 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 OM_uint32
  36 gss_acquire_cred_with_password(OM_uint32 *minor_status,
  37                                const gss_name_t desired_name,
  38                                const gss_buffer_t password,
  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     OM_uint32 major_status, tmp_minor;
  47
  48     if (desired_mechs == GSS_C_NO_OID_SET) {
  49         major_status = gss_acquire_cred_ext(minor_status,
  50                                             desired_name,
  51                                             GSS_C_CRED_PASSWORD,
  52                                             password,
  53                                             time_req,
  54                                             GSS_C_NO_OID,
  55                                             cred_usage,
  56                                             output_cred_handle);
  57         if (GSS_ERROR(major_status))
  58             return major_status;
  59     } else {
  60         size_t i;
  61         struct _gss_cred *new_cred;
  62
  63         new_cred = calloc(1, sizeof(*new_cred));
  64         if (new_cred == NULL) {
  65             *minor_status = ENOMEM;
  66             return GSS_S_FAILURE;
  67         }
  68         HEIM_SLIST_INIT(&new_cred->gc_mc);
  69
  70         for (i = 0; i < desired_mechs->count; i++) {
  71             struct _gss_cred *tmp_cred = NULL;
  72             struct _gss_mechanism_cred *mc;
  73
  74             major_status = gss_acquire_cred_ext(minor_status,
  75                                                 desired_name,
  76                                                 GSS_C_CRED_PASSWORD,
  77                                                 password,
  78                                                 time_req,
  79                                                 &desired_mechs->elements[i],
  80                                                 cred_usage,
  81                                                 (gss_cred_id_t *)&tmp_cred);
  82             if (GSS_ERROR(major_status))
  83                 continue;
  84
  85             mc = HEIM_SLIST_FIRST(&tmp_cred->gc_mc);
  86             if (mc) {
  87                 HEIM_SLIST_REMOVE_HEAD(&tmp_cred->gc_mc, gmc_link);
  88                 HEIM_SLIST_INSERT_HEAD(&new_cred->gc_mc, mc, gmc_link);
  89             }
  90
  91             gss_release_cred(&tmp_minor, (gss_cred_id_t *)&tmp_cred);
  92         }
  93
  94         if (!HEIM_SLIST_FIRST(&new_cred->gc_mc)) {
  95             free(new_cred);
  96             *minor_status = 0;
  97             return GSS_S_NO_CRED;
  98         }
  99
 100         *output_cred_handle = (gss_cred_id_t)new_cred;
 101     }
 102
 103     if (actual_mechs != NULL || time_rec != NULL) {
 104         major_status = gss_inquire_cred(minor_status,
 105                                         *output_cred_handle,
 106                                         NULL,
 107                                         time_rec,
 108                                         NULL,
 109                                         actual_mechs);
 110         if (GSS_ERROR(major_status)) {
 111             gss_release_cred(&tmp_minor, output_cred_handle);
 112             return major_status;
 113         }
 114     }
 115
 116     *minor_status = 0;
 117     return GSS_S_COMPLETE;
 118 }