* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include "giostream.h"
#include "gasyncresult.h"
#include "gsimpleasyncresult.h"
+#include "glib-private.h"
#include "gdbusprivate.h"
+#include "giomodule-priv.h"
+#include "gdbusdaemon.h"
#ifdef G_OS_UNIX
#include <gio/gunixsocketaddress.h>
-#include <sys/wait.h>
+#endif
+
+#ifdef G_OS_WIN32
+#include <windows.h>
+#include <io.h>
+#include <conio.h>
#endif
#include "glibintl.h"
*
* Routines for working with D-Bus addresses. A D-Bus address is a string
* like "unix:tmpdir=/tmp/my-app-name". The exact format of addresses
- * is explained in detail in the <link linkend="http://dbus.freedesktop.org/doc/dbus-specification.html#addresses">D-Bus specification</link>.
+ * is explained in detail in the [D-Bus specification](http://dbus.freedesktop.org/doc/dbus-specification.html\#addresses).
*/
static gchar *get_session_address_platform_specific (GError **error);
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Unsupported key `%s' in address entry `%s'"),
+ _("Unsupported key '%s' in address entry '%s'"),
key,
address_entry);
goto out;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Address `%s' is invalid (need exactly one of path, tmpdir or abstract keys)"),
+ _("Address '%s' is invalid (need exactly one of path, tmpdir or abstract keys)"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Meaningless key/value pair combination in address entry `%s'"),
+ _("Meaningless key/value pair combination in address entry '%s'"),
address_entry);
out:
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Unsupported key `%s' in address entry `%s'"),
+ _("Unsupported key '%s' in address entry '%s'"),
key,
address_entry);
goto out;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the port attribute is malformed"),
+ _("Error in address '%s' - the port attribute is malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the family attribute is malformed"),
+ _("Error in address '%s' - the family attribute is malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Unsupported key `%s' in address entry `%s'"),
+ _("Unsupported key '%s' in address entry '%s'"),
key,
address_entry);
goto out;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the port attribute is malformed"),
+ _("Error in address '%s' - the port attribute is malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the family attribute is malformed"),
+ _("Error in address '%s' - the family attribute is malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Address element `%s', does not contain a colon (:)"),
+ _("Address element '%s' does not contain a colon (:)"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Key/Value pair %d, `%s', in address element `%s', does not contain an equal sign"),
+ _("Key/Value pair %d, '%s', in address element '%s' does not contain an equal sign"),
n,
kv_pair,
address_entry);
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error unescaping key or value in Key/Value pair %d, `%s', in address element `%s'"),
+ _("Error unescaping key or value in Key/Value pair %d, '%s', in address element '%s'"),
n,
kv_pair,
address_entry);
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the unix transport requires exactly one of the "
- "keys `path' or `abstract' to be set"),
+ _("Error in address '%s' - the unix transport requires exactly one of the "
+ "keys 'path' or 'abstract' to be set"),
address_entry);
}
else if (path != NULL)
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the host attribute is missing or malformed"),
+ _("Error in address '%s' - the host attribute is missing or malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the port attribute is missing or malformed"),
+ _("Error in address '%s' - the port attribute is missing or malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error in address `%s' - the noncefile attribute is missing or malformed"),
+ _("Error in address '%s' - the noncefile attribute is missing or malformed"),
address_entry);
goto out;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Unknown or unsupported transport `%s' for address `%s'"),
+ _("Unknown or unsupported transport '%s' for address '%s'"),
transport_name,
address_entry);
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error opening nonce file `%s': %s"),
+ _("Error opening nonce file '%s': %s"),
nonce_file,
g_strerror (errno));
g_object_unref (ret);
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error reading from nonce file `%s': %s"),
+ _("Error reading from nonce file '%s': %s"),
nonce_file,
g_strerror (errno));
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Error reading from nonce file `%s', expected 16 bytes, got %d"),
+ _("Error reading from nonce file '%s', expected 16 bytes, got %d"),
nonce_file,
(gint) num_bytes_read);
}
cancellable,
error))
{
- g_prefix_error (error, _("Error writing contents of nonce file `%s' to stream:"), nonce_file);
+ g_prefix_error (error, _("Error writing contents of nonce file '%s' to stream:"), nonce_file);
g_object_unref (ret);
ret = NULL;
goto out;
/**
* g_dbus_address_get_stream:
* @address: A valid D-Bus address.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @callback: A #GAsyncReadyCallback to call when the request is satisfied.
* @user_data: Data to pass to @callback.
*
callback,
user_data,
g_dbus_address_get_stream);
+ g_simple_async_result_set_check_cancellable (res, cancellable);
data = g_new0 (GetStreamData, 1);
data->address = g_strdup (address);
g_simple_async_result_set_op_res_gpointer (res,
* g_dbus_address_get_stream_sync:
* @address: A valid D-Bus address.
* @out_guid: %NULL or return location to store the GUID extracted from @address, if any.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: Return location for error or %NULL.
*
* Synchronously connects to an endpoint specified by @address and
restore_dbus_verbose = FALSE;
old_dbus_verbose = NULL;
+ /* Don't run binaries as root if we're setuid. */
+ if (GLIB_PRIVATE_CALL (g_check_setuid) ())
+ {
+ g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+ _("Cannot spawn a message bus when setuid"));
+ goto out;
+ }
+
machine_id = _g_dbus_get_machine_id (error);
if (machine_id == NULL)
{
if (G_UNLIKELY (_g_dbus_debug_address ()))
{
_g_dbus_debug_print_lock ();
- g_print ("GDBus-debug:Address: Running `%s' to get bus address (possibly autolaunching)\n", command_line);
+ g_print ("GDBus-debug:Address: Running '%s' to get bus address (possibly autolaunching)\n", command_line);
old_dbus_verbose = g_strdup (g_getenv ("DBUS_VERBOSE"));
restore_dbus_verbose = TRUE;
g_setenv ("DBUS_VERBOSE", "1", TRUE);
&exit_status,
error))
{
- g_prefix_error (error, _("Error spawning command line `%s': "), command_line);
goto out;
}
- if (!WIFEXITED (exit_status))
+ if (!g_spawn_check_exit_status (exit_status, error))
{
- gchar *escaped_stderr;
- escaped_stderr = g_strescape (launch_stderr, "");
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_FAILED,
- _("Abnormal program termination spawning command line `%s': %s"),
- command_line,
- escaped_stderr);
- g_free (escaped_stderr);
- goto out;
- }
-
- if (WEXITSTATUS (exit_status) != 0)
- {
- gchar *escaped_stderr;
- escaped_stderr = g_strescape (launch_stderr, "");
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_FAILED,
- _("Command line `%s' exited with non-zero exit status %d: %s"),
- command_line,
- WEXITSTATUS (exit_status),
- escaped_stderr);
- g_free (escaped_stderr);
+ g_prefix_error (error, _("Error spawning command line '%s': "), command_line);
goto out;
}
}
#endif
+#ifdef G_OS_WIN32
+
+#define DBUS_DAEMON_ADDRESS_INFO "DBusDaemonAddressInfo"
+#define DBUS_DAEMON_MUTEX "DBusDaemonMutex"
+#define UNIQUE_DBUS_INIT_MUTEX "UniqueDBusInitMutex"
+#define DBUS_AUTOLAUNCH_MUTEX "DBusAutolaunchMutex"
+
+static void
+release_mutex (HANDLE mutex)
+{
+ ReleaseMutex (mutex);
+ CloseHandle (mutex);
+}
+
+static HANDLE
+acquire_mutex (const char *mutexname)
+{
+ HANDLE mutex;
+ DWORD res;
+
+ mutex = CreateMutexA (NULL, FALSE, mutexname);
+ if (!mutex)
+ return 0;
+
+ res = WaitForSingleObject (mutex, INFINITE);
+ switch (res)
+ {
+ case WAIT_ABANDONED:
+ release_mutex (mutex);
+ return 0;
+ case WAIT_FAILED:
+ case WAIT_TIMEOUT:
+ return 0;
+ }
+
+ return mutex;
+}
+
+static gboolean
+is_mutex_owned (const char *mutexname)
+{
+ HANDLE mutex;
+ gboolean res = FALSE;
+
+ mutex = CreateMutexA (NULL, FALSE, mutexname);
+ if (WaitForSingleObject (mutex, 10) == WAIT_TIMEOUT)
+ res = TRUE;
+ else
+ ReleaseMutex (mutex);
+ CloseHandle (mutex);
+
+ return res;
+}
+
+static char *
+read_shm (const char *shm_name)
+{
+ HANDLE shared_mem;
+ char *shared_data;
+ char *res;
+ int i;
+
+ res = NULL;
+
+ for (i = 0; i < 20; i++)
+ {
+ shared_mem = OpenFileMappingA (FILE_MAP_READ, FALSE, shm_name);
+ if (shared_mem != 0)
+ break;
+ Sleep (100);
+ }
+
+ if (shared_mem != 0)
+ {
+ shared_data = MapViewOfFile (shared_mem, FILE_MAP_READ, 0, 0, 0);
+ if (shared_data != NULL)
+ {
+ res = g_strdup (shared_data);
+ UnmapViewOfFile (shared_data);
+ }
+ CloseHandle (shared_mem);
+ }
+
+ return res;
+}
+
+static HANDLE
+set_shm (const char *shm_name, const char *value)
+{
+ HANDLE shared_mem;
+ char *shared_data;
+
+ shared_mem = CreateFileMappingA (INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
+ 0, strlen (value) + 1, shm_name);
+ if (shared_mem == 0)
+ return 0;
+
+ shared_data = MapViewOfFile (shared_mem, FILE_MAP_WRITE, 0, 0, 0 );
+ if (shared_data == NULL)
+ return 0;
+
+ strcpy (shared_data, value);
+
+ UnmapViewOfFile (shared_data);
+
+ return shared_mem;
+}
+
+/* These keep state between publish_session_bus and unpublish_session_bus */
+static HANDLE published_daemon_mutex;
+static HANDLE published_shared_mem;
+
+static gboolean
+publish_session_bus (const char *address)
+{
+ HANDLE init_mutex;
+
+ init_mutex = acquire_mutex (UNIQUE_DBUS_INIT_MUTEX);
+
+ published_daemon_mutex = CreateMutexA (NULL, FALSE, DBUS_DAEMON_MUTEX);
+ if (WaitForSingleObject (published_daemon_mutex, 10 ) != WAIT_OBJECT_0)
+ {
+ release_mutex (init_mutex);
+ CloseHandle (published_daemon_mutex);
+ published_daemon_mutex = NULL;
+ return FALSE;
+ }
+
+ published_shared_mem = set_shm (DBUS_DAEMON_ADDRESS_INFO, address);
+ if (!published_shared_mem)
+ {
+ release_mutex (init_mutex);
+ CloseHandle (published_daemon_mutex);
+ published_daemon_mutex = NULL;
+ return FALSE;
+ }
+
+ release_mutex (init_mutex);
+ return TRUE;
+}
+
+static void
+unpublish_session_bus (void)
+{
+ HANDLE init_mutex;
+
+ init_mutex = acquire_mutex (UNIQUE_DBUS_INIT_MUTEX);
+
+ CloseHandle (published_shared_mem);
+ published_shared_mem = NULL;
+
+ release_mutex (published_daemon_mutex);
+ published_daemon_mutex = NULL;
+
+ release_mutex (init_mutex);
+}
+
+static void
+wait_console_window (void)
+{
+ FILE *console = fopen ("CONOUT$", "w");
+
+ SetConsoleTitleW (L"gdbus-daemon output. Type any character to close this window.");
+ fprintf (console, _("(Type any character to close this window)\n"));
+ fflush (console);
+ _getch ();
+}
+
+static void
+open_console_window (void)
+{
+ if (((HANDLE) _get_osfhandle (fileno (stdout)) == INVALID_HANDLE_VALUE ||
+ (HANDLE) _get_osfhandle (fileno (stderr)) == INVALID_HANDLE_VALUE) && AllocConsole ())
+ {
+ if ((HANDLE) _get_osfhandle (fileno (stdout)) == INVALID_HANDLE_VALUE)
+ freopen ("CONOUT$", "w", stdout);
+
+ if ((HANDLE) _get_osfhandle (fileno (stderr)) == INVALID_HANDLE_VALUE)
+ freopen ("CONOUT$", "w", stderr);
+
+ SetConsoleTitleW (L"gdbus-daemon debug output.");
+
+ atexit (wait_console_window);
+ }
+}
+static void
+idle_timeout_cb (GDBusDaemon *daemon, gpointer user_data)
+{
+ GMainLoop *loop = user_data;
+ g_main_loop_quit (loop);
+}
+
+__declspec(dllexport) void CALLBACK g_win32_run_session_bus (HWND hwnd, HINSTANCE hinst, char *cmdline, int nCmdShow);
+
+__declspec(dllexport) void CALLBACK
+g_win32_run_session_bus (HWND hwnd, HINSTANCE hinst, char *cmdline, int nCmdShow)
+{
+ GDBusDaemon *daemon;
+ GMainLoop *loop;
+ const char *address;
+ GError *error = NULL;
+
+ if (g_getenv ("GDBUS_DAEMON_DEBUG") != NULL)
+ open_console_window ();
+
+ loop = g_main_loop_new (NULL, FALSE);
+
+ address = "nonce-tcp:";
+ daemon = _g_dbus_daemon_new (address, NULL, &error);
+ if (daemon == NULL)
+ {
+ g_printerr ("Can't init bus: %s\n", error->message);
+ return;
+ }
+
+ g_signal_connect (daemon, "idle-timeout", G_CALLBACK (idle_timeout_cb), loop);
+
+ if ( publish_session_bus (_g_dbus_daemon_get_address (daemon)))
+ {
+ g_main_loop_run (loop);
+
+ unpublish_session_bus ();
+ }
+
+ g_main_loop_unref (loop);
+ g_object_unref (daemon);
+}
+
+static gchar *
+get_session_address_dbus_launch (GError **error)
+{
+ HANDLE autolaunch_mutex, init_mutex;
+ char *address = NULL;
+ wchar_t gio_path[MAX_PATH+1+200];
+
+ autolaunch_mutex = acquire_mutex (DBUS_AUTOLAUNCH_MUTEX);
+
+ init_mutex = acquire_mutex (UNIQUE_DBUS_INIT_MUTEX);
+
+ if (is_mutex_owned (DBUS_DAEMON_MUTEX))
+ address = read_shm (DBUS_DAEMON_ADDRESS_INFO);
+
+ release_mutex (init_mutex);
+
+ if (address == NULL)
+ {
+ gio_path[MAX_PATH] = 0;
+ if (GetModuleFileNameW (_g_io_win32_get_module (), gio_path, MAX_PATH))
+ {
+ PROCESS_INFORMATION pi = { 0 };
+ STARTUPINFOW si = { 0 };
+ BOOL res;
+ wchar_t gio_path_short[MAX_PATH];
+ wchar_t rundll_path[MAX_PATH*2];
+ wchar_t args[MAX_PATH*4];
+
+ GetShortPathNameW (gio_path, gio_path_short, MAX_PATH);
+
+ GetWindowsDirectoryW (rundll_path, MAX_PATH);
+ wcscat (rundll_path, L"\\rundll32.exe");
+ if (GetFileAttributesW (rundll_path) == INVALID_FILE_ATTRIBUTES)
+ {
+ GetSystemDirectoryW (rundll_path, MAX_PATH);
+ wcscat (rundll_path, L"\\rundll32.exe");
+ }
+
+ wcscpy (args, L"\"");
+ wcscat (args, rundll_path);
+ wcscat (args, L"\" ");
+ wcscat (args, gio_path_short);
+#if defined(_WIN64) || defined(_M_X64) || defined(_M_AMD64)
+ wcscat (args, L",g_win32_run_session_bus");
+#elif defined (_MSC_VER)
+ wcscat (args, L",_g_win32_run_session_bus@16");
+#else
+ wcscat (args, L",g_win32_run_session_bus@16");
+#endif
+
+ res = CreateProcessW (rundll_path, args,
+ 0, 0, FALSE,
+ NORMAL_PRIORITY_CLASS | CREATE_NO_WINDOW | DETACHED_PROCESS,
+ 0, NULL /* TODO: Should be root */,
+ &si, &pi);
+ if (res)
+ address = read_shm (DBUS_DAEMON_ADDRESS_INFO);
+ }
+ }
+
+ release_mutex (autolaunch_mutex);
+
+ if (address == NULL)
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_FAILED,
+ _("Session dbus not running, and autolaunch failed"));
+
+ return address;
+}
+#endif
+
/* ---------------------------------------------------------------------------------------------------- */
static gchar *
get_session_address_platform_specific (GError **error)
{
gchar *ret;
-#ifdef G_OS_UNIX
- /* need to handle OS X in a different way since `dbus-launch --autolaunch' probably won't work there */
+#if defined (G_OS_UNIX) || defined(G_OS_WIN32)
+ /* need to handle OS X in a different way since 'dbus-launch --autolaunch' probably won't work there */
ret = get_session_address_dbus_launch (error);
#else
- /* TODO: implement for UNIX, Win32 and OS X */
+ /* TODO: implement for OS X */
ret = NULL;
g_set_error (error,
G_IO_ERROR,
/**
* g_dbus_address_get_for_bus_sync:
- * @bus_type: A #GBusType.
- * @cancellable: A #GCancellable or %NULL.
- * @error: Return location for error or %NULL.
+ * @bus_type: a #GBusType
+ * @cancellable: (allow-none): a #GCancellable or %NULL
+ * @error: return location for error or %NULL
*
* Synchronously looks up the D-Bus address for the well-known message
* bus instance specified by @bus_type. This may involve using various
* platform specific mechanisms.
*
- * Returns: A valid D-Bus address string for @bus_type or %NULL if @error is set.
+ * Returns: a valid D-Bus address string for @bus_type or %NULL if
+ * @error is set
*
* Since: 2.26
*/
{
guint n;
_g_dbus_debug_print_lock ();
- g_print ("GDBus-debug:Address: In g_dbus_address_get_for_bus_sync() for bus type `%s'\n",
+ g_print ("GDBus-debug:Address: In g_dbus_address_get_for_bus_sync() for bus type '%s'\n",
_g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type));
for (n = 0; n < 3; n++)
{
v = g_getenv (k);
g_print ("GDBus-debug:Address: env var %s", k);
if (v != NULL)
- g_print ("=`%s'\n", v);
+ g_print ("='%s'\n", v);
else
g_print (" is not set\n");
}
G_IO_ERROR,
G_IO_ERROR_FAILED,
_("Cannot determine bus address from DBUS_STARTER_BUS_TYPE environment variable"
- " - unknown value `%s'"),
+ " - unknown value '%s'"),
starter_bus);
}
else
_g_dbus_debug_print_lock ();
if (ret != NULL)
{
- g_print ("GDBus-debug:Address: Returning address `%s' for bus type `%s'\n",
+ g_print ("GDBus-debug:Address: Returning address '%s' for bus type '%s'\n",
ret,
_g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type));
}
else
{
- g_print ("GDBus-debug:Address: Cannot look-up address bus type `%s': %s\n",
+ g_print ("GDBus-debug:Address: Cannot look-up address bus type '%s': %s\n",
_g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type),
- local_error->message);
+ local_error ? local_error->message : "");
}
_g_dbus_debug_print_unlock ();
}
return ret;
}
+
+/**
+ * g_dbus_address_escape_value:
+ * @string: an unescaped string to be included in a D-Bus address
+ * as the value in a key-value pair
+ *
+ * Escape @string so it can appear in a D-Bus address as the value
+ * part of a key-value pair.
+ *
+ * For instance, if @string is "/run/bus-for-:0",
+ * this function would return "/run/bus-for-%3A0",
+ * which could be used in a D-Bus address like
+ * "unix:nonce-tcp:host=127.0.0.1,port=42,noncefile=/run/bus-for-%3A0".
+ *
+ * Returns: (transfer full): a copy of @string with all
+ * non-optionally-escaped bytes escaped
+ *
+ * Since: 2.36
+ */
+gchar *
+g_dbus_address_escape_value (const gchar *string)
+{
+ GString *s;
+ gsize i;
+
+ g_return_val_if_fail (string != NULL, NULL);
+
+ /* There will often not be anything needing escaping at all. */
+ s = g_string_sized_new (strlen (string));
+
+ /* D-Bus address escaping is mostly the same as URI escaping... */
+ g_string_append_uri_escaped (s, string, "\\/", FALSE);
+
+ /* ... but '~' is an unreserved character in URIs, but a
+ * non-optionally-escaped character in D-Bus addresses. */
+ for (i = 0; i < s->len; i++)
+ {
+ if (G_UNLIKELY (s->str[i] == '~'))
+ {
+ s->str[i] = '%';
+ g_string_insert (s, i + 1, "7E");
+ i += 2;
+ }
+ }
+
+ return g_string_free (s, FALSE);
+}