-/* -*- mode: C; c-file-style: "gnu" -*- */
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-userdb.c User database abstraction
*
* Copyright (C) 2003, 2004 Red Hat, Inc.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
+#include <config.h>
#define DBUS_USERDB_INCLUDES_PRIVATE 1
#include "dbus-userdb.h"
#include "dbus-hash.h"
#include "dbus-test.h"
#include "dbus-internals.h"
#include "dbus-protocol.h"
+#include "dbus-credentials.h"
#include <string.h>
/**
}
/**
+ * Frees the members of info
+ * (but not info itself)
+ * @param info the user info struct
+ */
+void
+_dbus_user_info_free (DBusUserInfo *info)
+{
+ dbus_free (info->group_ids);
+ dbus_free (info->username);
+ dbus_free (info->homedir);
+}
+
+/**
+ * Frees the members of info (but not info itself).
+ *
+ * @param info the group info
+ */
+void
+_dbus_group_info_free (DBusGroupInfo *info)
+{
+ dbus_free (info->groupname);
+}
+
+/**
* Checks if a given string is actually a number
* and converts it if it is
*
*/
dbus_bool_t
_dbus_is_a_number (const DBusString *str,
- unsigned long *num)
+ unsigned long *num)
{
int end;
- if (_dbus_string_parse_int (str, 0, num, &end) &&
+ if (_dbus_string_parse_uint (str, 0, num, &end) &&
end == _dbus_string_get_length (str))
return TRUE;
else
uid = n;
}
+#ifdef DBUS_ENABLE_USERDB_CACHE
if (uid != DBUS_UID_UNSET)
- info = _dbus_hash_table_lookup_ulong (db->users, uid);
+ info = _dbus_hash_table_lookup_uintptr (db->users, uid);
else
info = _dbus_hash_table_lookup_string (db->users_by_name, _dbus_string_get_const_data (username));
-
+
if (info)
{
_dbus_verbose ("Using cache for UID "DBUS_UID_FORMAT" information\n",
return info;
}
else
+#else
+ if (1)
+#endif
{
if (uid != DBUS_UID_UNSET)
_dbus_verbose ("No cache for UID "DBUS_UID_FORMAT"\n",
username = NULL;
/* insert into hash */
- if (!_dbus_hash_table_insert_ulong (db->users, info->uid, info))
+ if (!_dbus_hash_table_insert_uintptr (db->users, info->uid, info))
{
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
_dbus_user_info_free_allocated (info);
info->username,
info))
{
- _dbus_hash_table_remove_ulong (db->users, info->uid);
+ _dbus_hash_table_remove_uintptr (db->users, info->uid);
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
return NULL;
}
}
}
-_DBUS_DEFINE_GLOBAL_LOCK(system_users);
static dbus_bool_t database_locked = FALSE;
static DBusUserDatabase *system_db = NULL;
static DBusString process_username;
static void
shutdown_system_db (void *data)
{
- _dbus_user_database_unref (system_db);
+ if (system_db != NULL)
+ _dbus_user_database_unref (system_db);
system_db = NULL;
_dbus_string_free (&process_username);
_dbus_string_free (&process_homedir);
if (system_db == NULL)
{
- DBusError error;
+ DBusError error = DBUS_ERROR_INIT;
const DBusUserInfo *info;
system_db = _dbus_user_database_new ();
if (system_db == NULL)
return FALSE;
- dbus_error_init (&error);
-
if (!_dbus_user_database_get_uid (system_db,
_dbus_getuid (),
&info,
/**
* Locks global system user database.
*/
-void
+dbus_bool_t
_dbus_user_database_lock_system (void)
{
- _DBUS_LOCK (system_users);
- database_locked = TRUE;
+ if (_DBUS_LOCK (system_users))
+ {
+ database_locked = TRUE;
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
}
/**
}
/**
+ * Flushes the system global user database;
+ */
+void
+_dbus_user_database_flush_system (void)
+{
+ if (!_dbus_user_database_lock_system ())
+ {
+ /* nothing to flush */
+ return;
+ }
+
+ if (system_db != NULL)
+ _dbus_user_database_flush (system_db);
+
+ _dbus_user_database_unlock_system ();
+}
+
+/**
* Gets username of user owning current process. The returned string
* is valid until dbus_shutdown() is called.
*
dbus_bool_t
_dbus_username_from_current_process (const DBusString **username)
{
- _dbus_user_database_lock_system ();
+ if (!_dbus_user_database_lock_system ())
+ return FALSE;
+
if (!init_system_db ())
{
_dbus_user_database_unlock_system ();
dbus_bool_t
_dbus_homedir_from_current_process (const DBusString **homedir)
{
- _dbus_user_database_lock_system ();
+ if (!_dbus_user_database_lock_system ())
+ return FALSE;
+
if (!init_system_db ())
{
_dbus_user_database_unlock_system ();
{
DBusUserDatabase *db;
const DBusUserInfo *info;
- _dbus_user_database_lock_system ();
+
+ /* FIXME: this can't distinguish ENOMEM from other errors */
+ if (!_dbus_user_database_lock_system ())
+ return FALSE;
db = _dbus_user_database_get_system ();
if (db == NULL)
}
/**
- * Gets the credentials corresponding to the given username.
+ * Gets the home directory for the given user.
+ *
+ * @param uid the uid
+ * @param homedir string to append home directory to
+ * @returns #TRUE if user existed and we appended their homedir
+ */
+dbus_bool_t
+_dbus_homedir_from_uid (dbus_uid_t uid,
+ DBusString *homedir)
+{
+ DBusUserDatabase *db;
+ const DBusUserInfo *info;
+
+ /* FIXME: this can't distinguish ENOMEM from other errors */
+ if (!_dbus_user_database_lock_system ())
+ return FALSE;
+
+ db = _dbus_user_database_get_system ();
+ if (db == NULL)
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ if (!_dbus_user_database_get_uid (db, uid,
+ &info, NULL))
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ if (!_dbus_string_append (homedir, info->homedir))
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ _dbus_user_database_unlock_system ();
+ return TRUE;
+}
+
+/**
+ * Adds the credentials corresponding to the given username.
*
+ * Used among other purposes to parses a desired identity provided
+ * from a client in the auth protocol. On UNIX this means parsing a
+ * UID, on Windows probably parsing an SID string.
+ *
+ * @todo this is broken because it treats OOM and parse error
+ * the same way. Needs a #DBusError.
+ *
+ * @param credentials credentials to fill in
* @param username the username
- * @param credentials credentials to fill in
* @returns #TRUE if the username existed and we got some credentials
*/
dbus_bool_t
-_dbus_credentials_from_username (const DBusString *username,
- DBusCredentials *credentials)
+_dbus_credentials_add_from_user (DBusCredentials *credentials,
+ const DBusString *username)
{
DBusUserDatabase *db;
const DBusUserInfo *info;
- _dbus_user_database_lock_system ();
+
+ /* FIXME: this can't distinguish ENOMEM from other errors */
+ if (!_dbus_user_database_lock_system ())
+ return FALSE;
db = _dbus_user_database_get_system ();
if (db == NULL)
return FALSE;
}
- credentials->pid = DBUS_PID_UNSET;
- credentials->uid = info->uid;
- credentials->gid = info->primary_gid;
+ if (!_dbus_credentials_add_unix_uid(credentials, info->uid))
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
_dbus_user_database_unlock_system ();
return TRUE;
db->refcount = 1;
- db->users = _dbus_hash_table_new (DBUS_HASH_ULONG,
+ db->users = _dbus_hash_table_new (DBUS_HASH_UINTPTR,
NULL, (DBusFreeFunction) _dbus_user_info_free_allocated);
if (db->users == NULL)
goto failed;
- db->groups = _dbus_hash_table_new (DBUS_HASH_ULONG,
+ db->groups = _dbus_hash_table_new (DBUS_HASH_UINTPTR,
NULL, (DBusFreeFunction) _dbus_group_info_free_allocated);
if (db->groups == NULL)
_dbus_hash_table_remove_all(db->groups);
}
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
/**
* Increments refcount of user database.
* @param db the database
return db;
}
-#endif /* DBUS_BUILD_TESTS */
+#endif /* DBUS_ENABLE_EMBEDDED_TESTS */
/**
* Decrements refcount of user database.
projects / platform / upstream / dbus.git / blobdiff