source4/heimdal/lib/gssapi/krb5/copy_ccache.c

   1 /*
   2  * Copyright (c) 2000 - 2001, 2003 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 "krb5/gsskrb5_locl.h"
  35
  36 RCSID("$Id: copy_ccache.c,v 1.17 2006/11/13 18:01:29 lha Exp $");
  37
  38 #if 0
  39 OM_uint32
  40 gss_krb5_copy_ccache(OM_uint32 *minor_status,
  41                      krb5_context context,
  42                      gss_cred_id_t cred,
  43                      krb5_ccache out)
  44 {
  45     krb5_error_code kret;
  46
  47     HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
  48
  49     if (cred->ccache == NULL) {
  50         HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  51         *minor_status = EINVAL;
  52         return GSS_S_FAILURE;
  53     }
  54
  55     kret = krb5_cc_copy_cache(context, cred->ccache, out);
  56     HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  57     if (kret) {
  58         *minor_status = kret;
  59         return GSS_S_FAILURE;
  60     }
  61     *minor_status = 0;
  62     return GSS_S_COMPLETE;
  63 }
  64 #endif
  65
  66
  67 OM_uint32
  68 _gsskrb5_import_cred(OM_uint32 *minor_status,
  69                      krb5_ccache id,
  70                      krb5_principal keytab_principal,
  71                      krb5_keytab keytab,
  72                      gss_cred_id_t *cred)
  73 {
  74     krb5_context context;
  75     krb5_error_code kret;
  76     gsskrb5_cred handle;
  77     OM_uint32 ret;
  78
  79     *cred = NULL;
  80
  81     GSSAPI_KRB5_INIT (&context);
  82
  83     handle = calloc(1, sizeof(*handle));
  84     if (handle == NULL) {
  85         _gsskrb5_clear_status ();
  86         *minor_status = ENOMEM;
  87         return (GSS_S_FAILURE);
  88     }
  89     HEIMDAL_MUTEX_init(&handle->cred_id_mutex);
  90
  91     handle->usage = 0;
  92
  93     if (id) {
  94         char *str;
  95
  96         handle->usage |= GSS_C_INITIATE;
  97
  98         kret = krb5_cc_get_principal(context, id,
  99                                      &handle->principal);
 100         if (kret) {
 101             free(handle);
 102             *minor_status = kret;
 103             return GSS_S_FAILURE;
 104         }
 105
 106         if (keytab_principal) {
 107             krb5_boolean match;
 108
 109             match = krb5_principal_compare(context,
 110                                            handle->principal,
 111                                            keytab_principal);
 112             if (match == FALSE) {
 113                 krb5_free_principal(context, handle->principal);
 114                 free(handle);
 115                 _gsskrb5_clear_status ();
 116                 *minor_status = EINVAL;
 117                 return GSS_S_FAILURE;
 118             }
 119         }
 120
 121         ret = __gsskrb5_ccache_lifetime(minor_status,
 122                                         context,
 123                                         id,
 124                                         handle->principal,
 125                                         &handle->lifetime);
 126         if (ret != GSS_S_COMPLETE) {
 127             krb5_free_principal(context, handle->principal);
 128             free(handle);
 129             return ret;
 130         }
 131
 132
 133         kret = krb5_cc_get_full_name(context, id, &str);
 134         if (kret)
 135             goto out;
 136
 137         kret = krb5_cc_resolve(context, str, &handle->ccache);
 138         free(str);
 139         if (kret)
 140             goto out;
 141     }
 142
 143
 144     if (keytab) {
 145         char *str;
 146
 147         handle->usage |= GSS_C_ACCEPT;
 148
 149         if (keytab_principal && handle->principal == NULL) {
 150             kret = krb5_copy_principal(context,
 151                                        keytab_principal,
 152                                        &handle->principal);
 153             if (kret)
 154                 goto out;
 155         }
 156
 157         kret = krb5_kt_get_full_name(context, keytab, &str);
 158         if (kret)
 159             goto out;
 160
 161         kret = krb5_kt_resolve(context, str, &handle->keytab);
 162         free(str);
 163         if (kret)
 164             goto out;
 165     }
 166
 167
 168     if (id || keytab) {
 169         ret = _gsskrb5_create_empty_oid_set(minor_status, &handle->mechanisms);
 170         if (ret == GSS_S_COMPLETE)
 171             ret = _gsskrb5_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
 172                                               &handle->mechanisms);
 173         if (ret != GSS_S_COMPLETE) {
 174             kret = *minor_status;
 175             goto out;
 176         }
 177     }
 178
 179     *minor_status = 0;
 180     *cred = (gss_cred_id_t)handle;
 181     return GSS_S_COMPLETE;
 182
 183 out:
 184     if (handle->principal)
 185         krb5_free_principal(context, handle->principal);
 186     HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
 187     free(handle);
 188     *minor_status = kret;
 189     return GSS_S_FAILURE;
 190 }