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-rw-r--r--kdm/backend/consolekit.c557
1 files changed, 557 insertions, 0 deletions
diff --git a/kdm/backend/consolekit.c b/kdm/backend/consolekit.c
new file mode 100644
index 000000000..cb59b7369
--- /dev/null
+++ b/kdm/backend/consolekit.c
@@ -0,0 +1,557 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2006-2007 William Jon McCann <[email protected]>
+ * Copyright (C) 2007 Kevin Kofler <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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.
+ *
+ */
+
+#include "dm.h"
+#include "dm_auth.h"
+#include "dm_error.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <pwd.h>
+
+#define DBUS_API_SUBJECT_TO_CHANGE
+#include <dbus/dbus.h>
+
+#include "consolekit.h"
+
+
+#define CK_NAME "org.freedesktop.ConsoleKit"
+#define CK_PATH "/org/freedesktop/ConsoleKit"
+#define CK_INTERFACE "org.freedesktop.ConsoleKit"
+#define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager"
+#define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager"
+#define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session"
+
+static DBusConnection *private_connection = NULL;
+
+static void
+add_param_int (DBusMessageIter *iter_struct,
+ const char *key,
+ int value)
+{
+ DBusMessageIter iter_struct_entry;
+ DBusMessageIter iter_var;
+
+ dbus_message_iter_open_container (iter_struct,
+ DBUS_TYPE_STRUCT,
+ NULL,
+ &iter_struct_entry);
+
+ dbus_message_iter_append_basic (&iter_struct_entry,
+ DBUS_TYPE_STRING,
+ &key);
+
+ dbus_message_iter_open_container (&iter_struct_entry,
+ DBUS_TYPE_VARIANT,
+ DBUS_TYPE_INT32_AS_STRING,
+ &iter_var);
+
+ dbus_message_iter_append_basic (&iter_var,
+ DBUS_TYPE_INT32,
+ &value);
+
+ dbus_message_iter_close_container (&iter_struct_entry,
+ &iter_var);
+
+ dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
+}
+
+static void
+add_param_boolean (DBusMessageIter *iter_struct,
+ const char *key,
+ int value)
+{
+ DBusMessageIter iter_struct_entry;
+ DBusMessageIter iter_var;
+
+ dbus_message_iter_open_container (iter_struct,
+ DBUS_TYPE_STRUCT,
+ NULL,
+ &iter_struct_entry);
+
+ dbus_message_iter_append_basic (&iter_struct_entry,
+ DBUS_TYPE_STRING,
+ &key);
+
+ dbus_message_iter_open_container (&iter_struct_entry,
+ DBUS_TYPE_VARIANT,
+ DBUS_TYPE_BOOLEAN_AS_STRING,
+ &iter_var);
+
+ dbus_message_iter_append_basic (&iter_var,
+ DBUS_TYPE_BOOLEAN,
+ &value);
+
+ dbus_message_iter_close_container (&iter_struct_entry,
+ &iter_var);
+
+ dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
+}
+
+static void
+add_param_string (DBusMessageIter *iter_struct,
+ const char *key,
+ const char *value)
+{
+ DBusMessageIter iter_struct_entry;
+ DBusMessageIter iter_var;
+
+ dbus_message_iter_open_container (iter_struct,
+ DBUS_TYPE_STRUCT,
+ NULL,
+ &iter_struct_entry);
+
+ dbus_message_iter_append_basic (&iter_struct_entry,
+ DBUS_TYPE_STRING,
+ &key);
+
+ dbus_message_iter_open_container (&iter_struct_entry,
+ DBUS_TYPE_VARIANT,
+ DBUS_TYPE_STRING_AS_STRING,
+ &iter_var);
+
+ dbus_message_iter_append_basic (&iter_var,
+ DBUS_TYPE_STRING,
+ &value);
+
+ dbus_message_iter_close_container (&iter_struct_entry,
+ &iter_var);
+
+ dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
+}
+
+static int
+session_get_x11_display (DBusConnection *connection,
+ const char *ssid,
+ char **str)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ const char *value;
+
+ if (str != NULL) {
+ *str = NULL;
+ }
+
+ message = dbus_message_new_method_call (CK_NAME,
+ ssid,
+ CK_SESSION_INTERFACE,
+ "GetX11Display");
+ if (message == NULL) {
+ Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1, &error);
+ if (dbus_error_is_set (&error)) {
+ Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
+ reply = NULL;
+ }
+
+ dbus_connection_flush (connection);
+ dbus_message_unref (message);
+
+ if (reply == NULL) {
+ return FALSE;
+ }
+
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_get_basic (&iter, &value);
+ if (str != NULL) {
+ *str = strdup (value);
+ }
+ dbus_message_unref (reply);
+
+ return TRUE;
+}
+
+static int
+session_unlock (DBusConnection *connection,
+ const char *ssid)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+
+ Debug ("ConsoleKit: Unlocking session %s", ssid);
+ message = dbus_message_new_method_call (CK_NAME,
+ ssid,
+ CK_SESSION_INTERFACE,
+ "Unlock");
+ if (message == NULL) {
+ Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
+ return FALSE;
+ }
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1, &error);
+ dbus_message_unref (message);
+ dbus_message_unref (reply);
+ dbus_connection_flush (connection);
+
+ if (dbus_error_is_set (&error)) {
+ Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* from libhal */
+static char **
+get_path_array_from_iter (DBusMessageIter *iter,
+ int *num_elements)
+{
+ int count;
+ char **buffer;
+
+ count = 0;
+ buffer = (char **)malloc (sizeof (char *) * 8);
+
+ if (buffer == NULL)
+ goto oom;
+
+ buffer[0] = NULL;
+ while (dbus_message_iter_get_arg_type (iter) == DBUS_TYPE_OBJECT_PATH) {
+ const char *value;
+ char *str;
+
+ if ((count % 8) == 0 && count != 0) {
+ buffer = realloc (buffer, sizeof (char *) * (count + 8));
+ if (buffer == NULL)
+ goto oom;
+ }
+
+ dbus_message_iter_get_basic (iter, &value);
+ str = strdup (value);
+ if (str == NULL)
+ goto oom;
+
+ buffer[count] = str;
+
+ dbus_message_iter_next (iter);
+ count++;
+ }
+
+ if ((count % 8) == 0) {
+ buffer = realloc (buffer, sizeof (char *) * (count + 1));
+ if (buffer == NULL)
+ goto oom;
+ }
+
+ buffer[count] = NULL;
+ if (num_elements != NULL)
+ *num_elements = count;
+ return buffer;
+
+oom:
+ LogWarn ("%s %d : error allocating memory\n", __FILE__, __LINE__);
+ return NULL;
+
+}
+
+static char **
+get_sessions_for_user (DBusConnection *connection,
+ const char *user,
+ const char *x11_display)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ DBusMessageIter iter_reply;
+ DBusMessageIter iter_array;
+ struct passwd *pwent;
+ char **sessions;
+
+ sessions = NULL;
+ message = NULL;
+ reply = NULL;
+
+ pwent = getpwnam (user);
+
+ dbus_error_init (&error);
+ message = dbus_message_new_method_call (CK_NAME,
+ CK_MANAGER_PATH,
+ CK_MANAGER_INTERFACE,
+ "GetSessionsForUser");
+ if (message == NULL) {
+ Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
+ goto out;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_UINT32,
+ &pwent->pw_uid);
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1, &error);
+ dbus_connection_flush (connection);
+
+ if (dbus_error_is_set (&error)) {
+ Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
+ goto out;
+ }
+
+ if (reply == NULL) {
+ Debug ("ConsoleKit: No reply for GetSessionsForUser");
+ goto out;
+ }
+
+ dbus_message_iter_init (reply, &iter_reply);
+ if (dbus_message_iter_get_arg_type (&iter_reply) != DBUS_TYPE_ARRAY) {
+ Debug ("ConsoleKit: Wrong reply for GetSessionsForUser - expecting an array.");
+ goto out;
+ }
+
+ dbus_message_iter_recurse (&iter_reply, &iter_array);
+ sessions = get_path_array_from_iter (&iter_array, NULL);
+
+ out:
+ if (message != NULL) {
+ dbus_message_unref (message);
+ }
+ if (reply != NULL) {
+ dbus_message_unref (reply);
+ }
+
+ return sessions;
+}
+
+void
+unlock_ck_session (const char *user,
+ const char *x11_display)
+{
+ DBusError error;
+ DBusConnection *connection;
+ char **sessions;
+ int i;
+
+ Debug ("ConsoleKit: Unlocking session for %s on %s", user, x11_display);
+
+ dbus_error_init (&error);
+ connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
+ if (connection == NULL) {
+ Debug ("ConsoleKit: Failed to connect to the D-Bus daemon: %s", error.message);
+ dbus_error_free (&error);
+ return;
+ }
+
+ sessions = get_sessions_for_user (connection, user, x11_display);
+ if (sessions == NULL || sessions[0] == NULL) {
+ Debug ("ConsoleKit: no sessions found");
+ return;
+ }
+
+ for (i = 0; sessions[i] != NULL; i++) {
+ char *ssid;
+ char *xdisplay;
+
+ ssid = sessions[i];
+ session_get_x11_display (connection, ssid, &xdisplay);
+ Debug ("ConsoleKit: session %s has DISPLAY %s", ssid, xdisplay);
+
+ if (xdisplay != NULL
+ && x11_display != NULL
+ && strcmp (xdisplay, x11_display) == 0) {
+ int res;
+
+ res = session_unlock (connection, ssid);
+ if (! res) {
+ LogError ("ConsoleKit: Unable to unlock %s", ssid);
+ }
+ }
+
+ free (xdisplay);
+ }
+
+ freeStrArr (sessions);
+}
+
+char *
+open_ck_session (struct passwd *pwent,
+ struct display *d)
+{
+ DBusConnection *connection;
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ DBusMessageIter iter_struct;
+ char *cookie;
+
+ cookie = NULL;
+
+ if (pwent == NULL) {
+ Debug ("ConsoleKit: NULL user passed as parameter");
+ return NULL;
+ }
+
+ Debug ("ConsoleKit: Opening session for %s", pwent->pw_name);
+
+ dbus_error_init (&error);
+ connection = dbus_bus_get_private (DBUS_BUS_SYSTEM, &error);
+ private_connection = connection;
+
+ if (connection == NULL) {
+ Debug ("ConsoleKit: Failed to connect to the D-Bus daemon: %s", error.message);
+ dbus_error_free (&error);
+ return NULL;
+ }
+
+ dbus_connection_set_exit_on_disconnect (connection, FALSE);
+ /* FIXME: What to do about these?
+ dbus_connection_set_watch_functions( connection,
+ dbusAddWatch,
+ dbusRemoveWatch,
+ dbusToggleWatch,
+ data, 0 );
+ dbus_connection_set_timeout_functions( connection,
+ dbusAddTimeout,
+ dbusRemoveTimeout,
+ dbusToggleTimeout,
+ data, 0 );
+ dbus_connection_set_wakeup_main_function( connection,
+ dbusWakeupMain,
+ data, 0 ); */
+
+ dbus_error_init (&error);
+ message = dbus_message_new_method_call (CK_NAME,
+ CK_MANAGER_PATH,
+ CK_MANAGER_INTERFACE,
+ "OpenSessionWithParameters");
+ if (message == NULL) {
+ Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
+ return NULL;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_open_container (&iter,
+ DBUS_TYPE_ARRAY,
+ DBUS_STRUCT_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_STRUCT_END_CHAR_AS_STRING,
+ &iter_struct);
+
+ add_param_int (&iter_struct, "user", pwent->pw_uid);
+ add_param_string (&iter_struct, "x11-display", d->name);
+ add_param_boolean (&iter_struct, "is-local", ((d->displayType & d_location) == dLocal));
+#ifdef XDMCP
+ if ((d->displayType & d_location) != dLocal) {
+ add_param_string (&iter_struct, "remote-host-name", d->remoteHost);
+ }
+#endif
+
+#ifdef HAVE_VTS
+ if (d->serverVT > 0) {
+ char device[20];
+
+ /* FIXME: how does xorg construct this */
+ sprintf(device, "/dev/tty%d", d->serverVT);
+ add_param_string (&iter_struct, "x11-display-device", device);
+ }
+#endif
+
+ dbus_message_iter_close_container (&iter, &iter_struct);
+
+ reply = dbus_connection_send_with_reply_and_block (connection,
+ message,
+ -1, &error);
+ if (dbus_error_is_set (&error)) {
+ Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
+ reply = NULL;
+ }
+
+ dbus_connection_flush (connection);
+
+ dbus_message_unref (message);
+ dbus_error_free (&error);
+
+ if (reply != NULL) {
+ const char *value;
+
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_get_basic (&iter, &value);
+ cookie = strdup (value);
+ dbus_message_unref (reply);
+ }
+
+ return cookie;
+}
+
+void
+close_ck_session (const char *cookie)
+{
+ DBusError error;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+
+ if (cookie == NULL) {
+ return;
+ }
+
+ if (private_connection == NULL) {
+ return;
+ }
+
+ dbus_error_init (&error);
+ message = dbus_message_new_method_call (CK_NAME,
+ CK_MANAGER_PATH,
+ CK_MANAGER_INTERFACE,
+ "CloseSession");
+ if (message == NULL) {
+ Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
+ return;
+ }
+
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_append_basic (&iter,
+ DBUS_TYPE_STRING,
+ &cookie);
+
+ reply = dbus_connection_send_with_reply_and_block (private_connection,
+ message,
+ -1, &error);
+ if (dbus_error_is_set (&error)) {
+ Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
+ reply = NULL;
+ }
+
+ dbus_connection_flush (private_connection);
+
+ dbus_message_unref (message);
+ dbus_error_free (&error);
+
+ dbus_connection_close (private_connection);
+ private_connection = NULL;
+}
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