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 "gsskrb5_locl.h"
  35
  36 #if 0
  37 OM_uint32
  38 gss_krb5_copy_ccache(OM_uint32 *minor_status,
  39                      krb5_context context,
  40                      gss_cred_id_t cred,
  41                      krb5_ccache out)
  42 {
  43     krb5_error_code kret;
  44
  45     HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
  46
  47     if (cred->ccache == NULL) {
  48         HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  49         *minor_status = EINVAL;
  50         return GSS_S_FAILURE;
  51     }
  52
  53     kret = krb5_cc_copy_cache(context, cred->ccache, out);
  54     HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  55     if (kret) {
  56         *minor_status = kret;
  57         return GSS_S_FAILURE;
  58     }
  59     *minor_status = 0;
  60     return GSS_S_COMPLETE;
  61 }
  62 #endif
  63
  64
  65 OM_uint32
  66 _gsskrb5_import_cred(OM_uint32 *minor_status,
  67                      krb5_ccache id,
  68                      krb5_principal keytab_principal,
  69                      krb5_keytab keytab,
  70                      gss_cred_id_t *cred)
  71 {
  72     krb5_context context;
  73     krb5_error_code kret;
  74     gsskrb5_cred handle;
  75     OM_uint32 ret;
  76
  77     *cred = NULL;
  78
  79     GSSAPI_KRB5_INIT (&context);
  80
  81     handle = calloc(1, sizeof(*handle));
  82     if (handle == NULL) {
  83         _gsskrb5_clear_status ();
  84         *minor_status = ENOMEM;
  85         return (GSS_S_FAILURE);
  86     }
  87     HEIMDAL_MUTEX_init(&handle->cred_id_mutex);
  88
  89     handle->usage = 0;
  90
  91     if (id) {
  92         char *str;
  93
  94         handle->usage |= GSS_C_INITIATE;
  95
  96         kret = krb5_cc_get_principal(context, id,
  97                                      &handle->principal);
  98         if (kret) {
  99             free(handle);
 100             *minor_status = kret;
 101             return GSS_S_FAILURE;
 102         }
 103
 104         if (keytab_principal) {
 105             krb5_boolean match;
 106
 107             match = krb5_principal_compare(context,
 108                                            handle->principal,
 109                                            keytab_principal);
 110             if (match == FALSE) {
 111                 krb5_free_principal(context, handle->principal);
 112                 free(handle);
 113                 _gsskrb5_clear_status ();
 114                 *minor_status = EINVAL;
 115                 return GSS_S_FAILURE;
 116             }
 117         }
 118
 119         ret = __gsskrb5_ccache_lifetime(minor_status,
 120                                         context,
 121                                         id,
 122                                         handle->principal,
 123                                         &handle->lifetime);
 124         if (ret != GSS_S_COMPLETE) {
 125             krb5_free_principal(context, handle->principal);
 126             free(handle);
 127             return ret;
 128         }
 129
 130
 131         kret = krb5_cc_get_full_name(context, id, &str);
 132         if (kret)
 133             goto out;
 134
 135         kret = krb5_cc_resolve(context, str, &handle->ccache);
 136         free(str);
 137         if (kret)
 138             goto out;
 139     }
 140
 141
 142     if (keytab) {
 143         char *str;
 144
 145         handle->usage |= GSS_C_ACCEPT;
 146
 147         if (keytab_principal && handle->principal == NULL) {
 148             kret = krb5_copy_principal(context,
 149                                        keytab_principal,
 150                                        &handle->principal);
 151             if (kret)
 152                 goto out;
 153         }
 154
 155         kret = krb5_kt_get_full_name(context, keytab, &str);
 156         if (kret)
 157             goto out;
 158
 159         kret = krb5_kt_resolve(context, str, &handle->keytab);
 160         free(str);
 161         if (kret)
 162             goto out;
 163     }
 164
 165
 166     if (id || keytab) {
 167         ret = gss_create_empty_oid_set(minor_status, &handle->mechanisms);
 168         if (ret == GSS_S_COMPLETE)
 169             ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
 170                                          &handle->mechanisms);
 171         if (ret != GSS_S_COMPLETE) {
 172             kret = *minor_status;
 173             goto out;
 174         }
 175     }
 176
 177     *minor_status = 0;
 178     *cred = (gss_cred_id_t)handle;
 179     return GSS_S_COMPLETE;
 180
 181 out:
 182     gss_release_oid_set(minor_status, &handle->mechanisms);
 183     if (handle->ccache)
 184         krb5_cc_close(context, handle->ccache);
 185     if (handle->keytab)
 186         krb5_kt_close(context, handle->keytab);
 187     if (handle->principal)
 188         krb5_free_principal(context, handle->principal);
 189     HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
 190     free(handle);
 191     *minor_status = kret;
 192     return GSS_S_FAILURE;
 193 }