-/* -*- mode: C; c-file-style: "gnu" -*- */
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-transport-unix.c UNIX socket subclasses of DBusTransport
*
* Copyright (C) 2002, 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>
+
+#include <stdio.h>
+
#include "dbus-internals.h"
#include "dbus-connection-internal.h"
#include "dbus-transport-unix.h"
+#include "dbus-transport-socket.h"
#include "dbus-transport-protected.h"
#include "dbus-watch.h"
#include "dbus-sysdeps-unix.h"
+#include "dbus-test.h"
/**
* @defgroup DBusTransportUnix DBusTransport implementations for UNIX
goto failed_0;
}
- _dbus_fd_set_close_on_exec (fd);
-
_dbus_verbose ("Successfully connected to unix socket %s\n",
path);
return NULL;
}
+/**
+ * Creates a new transport for the given binary and arguments. This
+ * creates a client-side of a transport. The process will be forked
+ * off and executed with stdin/stdout connected to a local AF_UNIX
+ * socket.
+ *
+ * @param path the path to the domain socket.
+ * @param argv Parameters list
+ * @param error address where an error can be returned.
+ * @returns a new transport, or #NULL on failure.
+ */
+static DBusTransport*
+_dbus_transport_new_for_exec (const char *path,
+ char *const argv[],
+ DBusError *error)
+{
+ int fd;
+ DBusTransport *transport;
+ DBusString address;
+ unsigned i;
+ char *escaped;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (!_dbus_string_init (&address))
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ return NULL;
+ }
+
+ fd = -1;
+
+ escaped = dbus_address_escape_value (path);
+ if (!escaped)
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ goto failed;
+ }
+
+ if (!_dbus_string_append (&address, "unixexec:path=") ||
+ !_dbus_string_append (&address, escaped))
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ dbus_free (escaped);
+ goto failed;
+ }
+
+ dbus_free (escaped);
+
+ if (argv)
+ {
+ for (i = 0; argv[i]; i++)
+ {
+ dbus_bool_t success;
+
+ escaped = dbus_address_escape_value (argv[i]);
+ if (!escaped)
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ goto failed;
+ }
+
+ success = _dbus_string_append_printf (&address, ",argv%u=%s", i, escaped);
+ dbus_free (escaped);
+
+ if (!success)
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ goto failed;
+ }
+ }
+ }
+
+ fd = _dbus_connect_exec (path, argv, error);
+ if (fd < 0)
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ goto failed;
+ }
+
+ _dbus_verbose ("Successfully connected to process %s\n",
+ path);
+
+ transport = _dbus_transport_new_for_socket (fd, NULL, &address);
+ if (transport == NULL)
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ goto failed;
+ }
+
+ _dbus_string_free (&address);
+
+ return transport;
+
+ failed:
+ if (fd >= 0)
+ _dbus_close_socket (fd, NULL);
+
+ _dbus_string_free (&address);
+ return NULL;
+}
+
+/**
+ * Opens platform specific transport types.
+ *
+ * @param entry the address entry to try opening
+ * @param transport_p return location for the opened transport
+ * @param error error to be set
+ * @returns result of the attempt
+ */
+DBusTransportOpenResult
+_dbus_transport_open_platform_specific (DBusAddressEntry *entry,
+ DBusTransport **transport_p,
+ DBusError *error)
+{
+ const char *method;
+
+ method = dbus_address_entry_get_method (entry);
+ _dbus_assert (method != NULL);
+
+ if (strcmp (method, "unix") == 0)
+ {
+ const char *path = dbus_address_entry_get_value (entry, "path");
+ const char *tmpdir = dbus_address_entry_get_value (entry, "tmpdir");
+ const char *abstract = dbus_address_entry_get_value (entry, "abstract");
+
+ if (tmpdir != NULL)
+ {
+ _dbus_set_bad_address (error, NULL, NULL,
+ "cannot use the \"tmpdir\" option for an address to connect to, only in an address to listen on");
+ return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+ }
+
+ if (path == NULL && abstract == NULL)
+ {
+ _dbus_set_bad_address (error, "unix",
+ "path or abstract",
+ NULL);
+ return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+ }
+
+ if (path != NULL && abstract != NULL)
+ {
+ _dbus_set_bad_address (error, NULL, NULL,
+ "can't specify both \"path\" and \"abstract\" options in an address");
+ return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+ }
+
+ if (path)
+ *transport_p = _dbus_transport_new_for_domain_socket (path, FALSE,
+ error);
+ else
+ *transport_p = _dbus_transport_new_for_domain_socket (abstract, TRUE,
+ error);
+ if (*transport_p == NULL)
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+ else
+ {
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ return DBUS_TRANSPORT_OPEN_OK;
+ }
+ }
+ else if (strcmp (method, "unixexec") == 0)
+ {
+ const char *path;
+ unsigned i;
+ char **argv;
+
+ path = dbus_address_entry_get_value (entry, "path");
+ if (path == NULL)
+ {
+ _dbus_set_bad_address (error, NULL, NULL,
+ "No process path specified");
+ return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+ }
+
+ /* First count argv arguments */
+ for (i = 1; ; i++)
+ {
+ char t[4+20+1]; /* "argv" plus space for a formatted base 10 64bit integer, plus NUL */
+
+ snprintf (t, sizeof(t), "argv%u", i);
+
+ if (!dbus_address_entry_get_value (entry, t))
+ break;
+ }
+
+ /* Allocate string array */
+ argv = dbus_new0 (char*, i+1);
+ if (!argv)
+ {
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+
+ /* Fill in string array */
+ for (i = 0; ; i++)
+ {
+ char t[4+20+1];
+ const char *p;
+
+ snprintf (t, sizeof(t), "argv%u", i);
+
+ p = dbus_address_entry_get_value (entry, t);
+ if (!p)
+ {
+ if (i == 0)
+ /* If argv0 isn't specified, fill in the path instead */
+ p = path;
+ else
+ break;
+ }
+
+ argv[i] = _dbus_strdup (p);
+ if (!argv[i])
+ {
+ dbus_free_string_array (argv);
+ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+ }
+
+ *transport_p = _dbus_transport_new_for_exec (path, argv, error);
+ dbus_free_string_array (argv);
+
+ if (*transport_p == NULL)
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+ else
+ {
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ return DBUS_TRANSPORT_OPEN_OK;
+ }
+ }
+#ifdef DBUS_ENABLE_LAUNCHD
+ else if (strcmp (method, "launchd") == 0)
+ {
+ DBusError tmp_error = DBUS_ERROR_INIT;
+ const char *launchd_env_var = dbus_address_entry_get_value (entry, "env");
+ const char *launchd_socket;
+ DBusString socket_path;
+ dbus_bool_t valid_socket;
+
+ if (!_dbus_string_init (&socket_path))
+ {
+ _DBUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ if (launchd_env_var == NULL)
+ {
+ _dbus_set_bad_address (error, "launchd", "env", NULL);
+ return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+ }
+
+ valid_socket = _dbus_lookup_launchd_socket (&socket_path, launchd_env_var, error);
+
+ if (dbus_error_is_set(error))
+ {
+ _dbus_string_free(&socket_path);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+
+ if (!valid_socket)
+ {
+ dbus_set_error(&tmp_error, DBUS_ERROR_BAD_ADDRESS,
+ "launchd's env var %s does not exist", launchd_env_var);
+ dbus_error_free(error);
+ dbus_move_error(&tmp_error, error);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+
+ launchd_socket = _dbus_string_get_const_data(&socket_path);
+ *transport_p = _dbus_transport_new_for_domain_socket (launchd_socket, FALSE, error);
+
+ if (*transport_p == NULL)
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+ }
+ else
+ {
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ return DBUS_TRANSPORT_OPEN_OK;
+ }
+ }
+#endif
+ else
+ {
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ return DBUS_TRANSPORT_OPEN_NOT_HANDLED;
+ }
+}
+
/** @} */
+
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
+
+dbus_bool_t
+_dbus_transport_unix_test (void)
+{
+ DBusConnection *c;
+ DBusError error;
+ dbus_bool_t ret;
+ const char *address;
+
+ dbus_error_init (&error);
+
+ c = dbus_connection_open ("unixexec:argv0=false,argv1=foobar,path=/bin/false", &error);
+ _dbus_assert (c != NULL);
+ _dbus_assert (!dbus_error_is_set (&error));
+
+ address = _dbus_connection_get_address (c);
+ _dbus_assert (address != NULL);
+
+ /* Let's see if the address got parsed, reordered and formatted correctly */
+ ret = strcmp (address, "unixexec:path=/bin/false,argv0=false,argv1=foobar") == 0;
+
+ dbus_connection_unref (c);
+
+ return ret;
+}
+
+#endif
projects / platform / upstream / dbus.git / blobdiff