/*
- * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
+ * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
*
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
*
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
*
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
*
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
*/
#include "kdc_locl.h"
-RCSID("$Id: misc.c,v 1.25 2005/06/30 01:53:48 lha Exp $");
-
struct timeval _kdc_now;
krb5_error_code
_kdc_db_fetch(krb5_context context,
krb5_kdc_configuration *config,
- krb5_principal principal, enum hdb_ent_type ent_type,
- hdb_entry **h)
+ krb5_const_principal principal,
+ unsigned flags,
+ krb5uint32 *kvno_ptr,
+ HDB **db,
+ hdb_entry_ex **h)
{
- hdb_entry *ent;
+ hdb_entry_ex *ent;
krb5_error_code ret = HDB_ERR_NOENTRY;
int i;
+ unsigned kvno = 0;
- ent = malloc (sizeof (*ent));
- if (ent == NULL)
+ if (kvno_ptr) {
+ kvno = *kvno_ptr;
+ flags |= HDB_F_KVNO_SPECIFIED;
+ }
+
+ ent = calloc (1, sizeof (*ent));
+ if (ent == NULL) {
+ krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
- ent->principal = principal;
+ }
for(i = 0; i < config->num_db; i++) {
+ krb5_principal enterprise_principal = NULL;
+ if (!(config->db[i]->hdb_capability_flags & HDB_CAP_F_HANDLE_ENTERPRISE_PRINCIPAL)
+ && principal->name.name_type == KRB5_NT_ENTERPRISE_PRINCIPAL) {
+ if (principal->name.name_string.len != 1) {
+ ret = KRB5_PARSE_MALFORMED;
+ krb5_set_error_message(context, ret,
+ "malformed request: "
+ "enterprise name with %d name components",
+ principal->name.name_string.len);
+ free(ent);
+ return ret;
+ }
+ ret = krb5_parse_name(context, principal->name.name_string.val[0],
+ &enterprise_principal);
+ if (ret) {
+ free(ent);
+ return ret;
+ }
+
+ principal = enterprise_principal;
+ }
+
ret = config->db[i]->hdb_open(context, config->db[i], O_RDONLY, 0);
if (ret) {
- kdc_log(context, config, 0, "Failed to open database: %s",
- krb5_get_err_text(context, ret));
+ const char *msg = krb5_get_error_message(context, ret);
+ kdc_log(context, config, 0, "Failed to open database: %s", msg);
+ krb5_free_error_message(context, msg);
continue;
}
- ret = config->db[i]->hdb_fetch(context,
- config->db[i],
- HDB_F_DECRYPT,
- principal,
- ent_type,
- ent);
+
+ ret = config->db[i]->hdb_fetch_kvno(context,
+ config->db[i],
+ principal,
+ flags | HDB_F_DECRYPT,
+ kvno,
+ ent);
+
+ krb5_free_principal(context, enterprise_principal);
+
config->db[i]->hdb_close(context, config->db[i]);
if(ret == 0) {
+ if (db)
+ *db = config->db[i];
*h = ent;
return 0;
}
}
free(ent);
+ krb5_set_error_message(context, ret,
+ "no such entry found in hdb");
return ret;
}
void
-_kdc_free_ent(krb5_context context, hdb_entry *ent)
+_kdc_free_ent(krb5_context context, hdb_entry_ex *ent)
{
hdb_free_entry (context, ent);
free (ent);
}
+/*
+ * Use the order list of preferred encryption types and sort the
+ * available keys and return the most preferred key.
+ */
+
krb5_error_code
-_kdc_db_fetch_ex(krb5_context context,
- krb5_kdc_configuration *config,
- krb5_principal principal, enum hdb_ent_type ent_type,
- hdb_entry_ex **h)
+_kdc_get_preferred_key(krb5_context context,
+ krb5_kdc_configuration *config,
+ hdb_entry_ex *h,
+ const char *name,
+ krb5_enctype *enctype,
+ Key **key)
{
- hdb_entry_ex *ent;
- krb5_error_code ret = HDB_ERR_NOENTRY;
+ krb5_error_code ret;
int i;
- ent = malloc (sizeof (*ent));
- if (ent == NULL)
- return ENOMEM;
- memset(ent, '\0', sizeof(*ent));
-
- ent->entry.principal = principal;
+ if (config->use_strongest_server_key) {
+ const krb5_enctype *p = krb5_kerberos_enctypes(context);
- for(i = 0; i < config->num_db; i++) {
- ret = config->db[i]->hdb_open(context, config->db[i], O_RDONLY, 0);
- if (ret) {
- kdc_log(context, config, 0, "Failed to open database: %s",
- krb5_get_err_text(context, ret));
- continue;
- }
- if (config->db[i]->hdb_fetch_ex) {
- ret = config->db[i]->hdb_fetch_ex(context,
- config->db[i],
- HDB_F_DECRYPT,
- principal,
- ent_type,
- ent);
- } else {
- ret = config->db[i]->hdb_fetch(context,
- config->db[i],
- HDB_F_DECRYPT,
- principal,
- ent_type,
- &ent->entry);
+ for (i = 0; p[i] != ETYPE_NULL; i++) {
+ if (krb5_enctype_valid(context, p[i]) != 0)
+ continue;
+ ret = hdb_enctype2key(context, &h->entry, p[i], key);
+ if (ret != 0)
+ continue;
+ if (enctype != NULL)
+ *enctype = p[i];
+ return 0;
}
- config->db[i]->hdb_close(context, config->db[i]);
- if(ret == 0) {
- *h = ent;
+ } else {
+ *key = NULL;
+
+ for (i = 0; i < h->entry.keys.len; i++) {
+ if (krb5_enctype_valid(context, h->entry.keys.val[i].key.keytype)
+ != 0)
+ continue;
+ ret = hdb_enctype2key(context, &h->entry,
+ h->entry.keys.val[i].key.keytype, key);
+ if (ret != 0)
+ continue;
+ if (enctype != NULL)
+ *enctype = (*key)->key.keytype;
return 0;
}
}
- free(ent);
- return ret;
-}
-void
-_kdc_free_ent_ex(krb5_context context, hdb_entry_ex *ent)
-{
- hdb_free_entry_ex (context, ent);
- free (ent);
+ krb5_set_error_message(context, EINVAL,
+ "No valid kerberos key found for %s", name);
+ return EINVAL; /* XXX */
}
git.samba.org / metze / samba / wip.git / blobdiff