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558 lines
13 KiB
558 lines
13 KiB
/*
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Copyright (C) 2006-2007 William Jon McCann <mccann@jhu.edu>
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Copyright (C) 2007 Kevin Kofler <Kevin@tigcc.ticalc.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "dm.h"
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#include "dm_auth.h"
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#include "dm_error.h"
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#define DBUS_API_SUBJECT_TO_CHANGE
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#include <dbus/dbus.h>
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#include "consolekit.h"
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#define CK_NAME "org.freedesktop.ConsoleKit"
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#define CK_PATH "/org/freedesktop/ConsoleKit"
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#define CK_INTERFACE "org.freedesktop.ConsoleKit"
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#define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager"
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#define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager"
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#define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session"
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static DBusConnection *private_connection = NULL;
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static void
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add_param_int (DBusMessageIter *iter_struct,
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const char *key,
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int value)
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{
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DBusMessageIter iter_struct_entry;
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DBusMessageIter iter_var;
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dbus_message_iter_open_container (iter_struct,
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DBUS_TYPE_STRUCT,
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NULL,
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&iter_struct_entry);
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dbus_message_iter_append_basic (&iter_struct_entry,
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DBUS_TYPE_STRING,
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&key);
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dbus_message_iter_open_container (&iter_struct_entry,
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DBUS_TYPE_VARIANT,
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DBUS_TYPE_INT32_AS_STRING,
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&iter_var);
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dbus_message_iter_append_basic (&iter_var,
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DBUS_TYPE_INT32,
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&value);
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dbus_message_iter_close_container (&iter_struct_entry,
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&iter_var);
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dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
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}
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static void
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add_param_boolean (DBusMessageIter *iter_struct,
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const char *key,
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int value)
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{
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DBusMessageIter iter_struct_entry;
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DBusMessageIter iter_var;
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dbus_message_iter_open_container (iter_struct,
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DBUS_TYPE_STRUCT,
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NULL,
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&iter_struct_entry);
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dbus_message_iter_append_basic (&iter_struct_entry,
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DBUS_TYPE_STRING,
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&key);
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dbus_message_iter_open_container (&iter_struct_entry,
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DBUS_TYPE_VARIANT,
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DBUS_TYPE_BOOLEAN_AS_STRING,
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&iter_var);
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dbus_message_iter_append_basic (&iter_var,
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DBUS_TYPE_BOOLEAN,
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&value);
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dbus_message_iter_close_container (&iter_struct_entry,
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&iter_var);
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dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
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}
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static void
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add_param_string (DBusMessageIter *iter_struct,
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const char *key,
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const char *value)
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{
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DBusMessageIter iter_struct_entry;
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DBusMessageIter iter_var;
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dbus_message_iter_open_container (iter_struct,
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DBUS_TYPE_STRUCT,
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NULL,
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&iter_struct_entry);
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dbus_message_iter_append_basic (&iter_struct_entry,
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DBUS_TYPE_STRING,
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&key);
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dbus_message_iter_open_container (&iter_struct_entry,
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DBUS_TYPE_VARIANT,
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DBUS_TYPE_STRING_AS_STRING,
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&iter_var);
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dbus_message_iter_append_basic (&iter_var,
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DBUS_TYPE_STRING,
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&value);
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dbus_message_iter_close_container (&iter_struct_entry,
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&iter_var);
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dbus_message_iter_close_container (iter_struct, &iter_struct_entry);
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}
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static int
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session_get_x11_display (DBusConnection *connection,
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const char *ssid,
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char **str)
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{
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DBusError error;
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DBusMessage *message;
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DBusMessage *reply;
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DBusMessageIter iter;
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const char *value;
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if (str != NULL) {
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*str = NULL;
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}
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message = dbus_message_new_method_call (CK_NAME,
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ssid,
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CK_SESSION_INTERFACE,
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"GetX11Display");
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if (message == NULL) {
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Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
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return FALSE;
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}
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dbus_error_init (&error);
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reply = dbus_connection_send_with_reply_and_block (connection,
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message,
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-1, &error);
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if (dbus_error_is_set (&error)) {
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Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
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reply = NULL;
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}
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dbus_connection_flush (connection);
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dbus_message_unref (message);
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if (reply == NULL) {
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return FALSE;
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}
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dbus_message_iter_init (reply, &iter);
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dbus_message_iter_get_basic (&iter, &value);
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if (str != NULL) {
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*str = strdup (value);
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}
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dbus_message_unref (reply);
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return TRUE;
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}
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static int
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session_unlock (DBusConnection *connection,
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const char *ssid)
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{
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DBusError error;
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DBusMessage *message;
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DBusMessage *reply;
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Debug ("ConsoleKit: Unlocking session %s", ssid);
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message = dbus_message_new_method_call (CK_NAME,
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ssid,
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CK_SESSION_INTERFACE,
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"Unlock");
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if (message == NULL) {
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Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
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return FALSE;
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}
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dbus_error_init (&error);
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reply = dbus_connection_send_with_reply_and_block (connection,
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message,
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-1, &error);
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dbus_message_unref (message);
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dbus_message_unref (reply);
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dbus_connection_flush (connection);
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if (dbus_error_is_set (&error)) {
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Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
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return FALSE;
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}
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return TRUE;
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}
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/* from libhal */
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static char **
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get_path_array_from_iter (DBusMessageIter *iter,
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int *num_elements)
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{
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int count;
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char **buffer;
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count = 0;
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buffer = (char **)malloc (sizeof (char *) * 8);
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if (buffer == NULL)
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goto oom;
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buffer[0] = NULL;
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while (dbus_message_iter_get_arg_type (iter) == DBUS_TYPE_OBJECT_PATH) {
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const char *value;
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char *str;
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if ((count % 8) == 0 && count != 0) {
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buffer = realloc (buffer, sizeof (char *) * (count + 8));
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if (buffer == NULL)
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goto oom;
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}
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dbus_message_iter_get_basic (iter, &value);
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str = strdup (value);
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if (str == NULL)
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goto oom;
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buffer[count] = str;
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dbus_message_iter_next (iter);
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count++;
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}
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if ((count % 8) == 0) {
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buffer = realloc (buffer, sizeof (char *) * (count + 1));
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if (buffer == NULL)
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goto oom;
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}
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buffer[count] = NULL;
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if (num_elements != NULL)
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*num_elements = count;
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return buffer;
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oom:
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LogWarn ("%s %d : error allocating memory\n", __FILE__, __LINE__);
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return NULL;
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}
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static char **
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get_sessions_for_user (DBusConnection *connection,
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const char *user,
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const char *x11_display)
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{
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DBusError error;
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DBusMessage *message;
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DBusMessage *reply;
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DBusMessageIter iter;
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DBusMessageIter iter_reply;
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DBusMessageIter iter_array;
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struct passwd *pwent;
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char **sessions;
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sessions = NULL;
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message = NULL;
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reply = NULL;
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pwent = getpwnam (user);
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dbus_error_init (&error);
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message = dbus_message_new_method_call (CK_NAME,
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CK_MANAGER_PATH,
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CK_MANAGER_INTERFACE,
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"GetSessionsForUser");
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if (message == NULL) {
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Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
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goto out;
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}
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dbus_message_iter_init_append (message, &iter);
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dbus_message_iter_append_basic (&iter,
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DBUS_TYPE_UINT32,
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&pwent->pw_uid);
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dbus_error_init (&error);
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reply = dbus_connection_send_with_reply_and_block (connection,
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message,
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-1, &error);
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dbus_connection_flush (connection);
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if (dbus_error_is_set (&error)) {
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Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
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goto out;
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}
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if (reply == NULL) {
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Debug ("ConsoleKit: No reply for GetSessionsForUser");
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goto out;
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}
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dbus_message_iter_init (reply, &iter_reply);
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if (dbus_message_iter_get_arg_type (&iter_reply) != DBUS_TYPE_ARRAY) {
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Debug ("ConsoleKit: Wrong reply for GetSessionsForUser - expecting an array.");
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goto out;
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}
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dbus_message_iter_recurse (&iter_reply, &iter_array);
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sessions = get_path_array_from_iter (&iter_array, NULL);
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out:
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if (message != NULL) {
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dbus_message_unref (message);
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}
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if (reply != NULL) {
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dbus_message_unref (reply);
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}
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return sessions;
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}
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void
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unlock_ck_session (const char *user,
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const char *x11_display)
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{
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DBusError error;
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DBusConnection *connection;
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char **sessions;
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int i;
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Debug ("ConsoleKit: Unlocking session for %s on %s", user, x11_display);
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dbus_error_init (&error);
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connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
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if (connection == NULL) {
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Debug ("ConsoleKit: Failed to connect to the D-Bus daemon: %s", error.message);
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dbus_error_free (&error);
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return;
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}
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sessions = get_sessions_for_user (connection, user, x11_display);
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if (sessions == NULL || sessions[0] == NULL) {
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Debug ("ConsoleKit: no sessions found");
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return;
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}
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for (i = 0; sessions[i] != NULL; i++) {
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char *ssid;
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char *xdisplay;
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ssid = sessions[i];
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session_get_x11_display (connection, ssid, &xdisplay);
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Debug ("ConsoleKit: session %s has DISPLAY %s", ssid, xdisplay);
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if (xdisplay != NULL
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&& x11_display != NULL
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&& strcmp (xdisplay, x11_display) == 0) {
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int res;
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res = session_unlock (connection, ssid);
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if (! res) {
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LogError ("ConsoleKit: Unable to unlock %s", ssid);
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}
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}
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free (xdisplay);
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}
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freeStrArr (sessions);
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}
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char *
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open_ck_session (struct passwd *pwent,
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struct display *d)
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{
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DBusConnection *connection;
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DBusError error;
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DBusMessage *message;
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DBusMessage *reply;
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DBusMessageIter iter;
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DBusMessageIter iter_struct;
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char *cookie;
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cookie = NULL;
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if (pwent == NULL) {
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Debug ("ConsoleKit: NULL user passed as parameter");
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return NULL;
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}
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Debug ("ConsoleKit: Opening session for %s", pwent->pw_name);
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dbus_error_init (&error);
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connection = dbus_bus_get_private (DBUS_BUS_SYSTEM, &error);
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private_connection = connection;
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if (connection == NULL) {
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Debug ("ConsoleKit: Failed to connect to the D-Bus daemon: %s", error.message);
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dbus_error_free (&error);
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return NULL;
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}
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dbus_connection_set_exit_on_disconnect (connection, FALSE);
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/* FIXME: What to do about these?
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dbus_connection_set_watch_functions( connection,
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dbusAddWatch,
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dbusRemoveWatch,
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dbusToggleWatch,
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data, 0 );
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dbus_connection_set_timeout_functions( connection,
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dbusAddTimeout,
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dbusRemoveTimeout,
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dbusToggleTimeout,
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data, 0 );
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dbus_connection_set_wakeup_main_function( connection,
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dbusWakeupMain,
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data, 0 ); */
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dbus_error_init (&error);
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message = dbus_message_new_method_call (CK_NAME,
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CK_MANAGER_PATH,
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CK_MANAGER_INTERFACE,
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"OpenSessionWithParameters");
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if (message == NULL) {
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Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
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return NULL;
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}
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dbus_message_iter_init_append (message, &iter);
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dbus_message_iter_open_container (&iter,
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DBUS_TYPE_ARRAY,
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DBUS_STRUCT_BEGIN_CHAR_AS_STRING
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DBUS_TYPE_STRING_AS_STRING
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DBUS_TYPE_VARIANT_AS_STRING
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DBUS_STRUCT_END_CHAR_AS_STRING,
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&iter_struct);
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add_param_int (&iter_struct, "user", pwent->pw_uid);
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add_param_string (&iter_struct, "x11-display", d->name);
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add_param_boolean (&iter_struct, "is-local", ((d->displayType & d_location) == dLocal));
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#ifdef XDMCP
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if ((d->displayType & d_location) != dLocal) {
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add_param_string (&iter_struct, "remote-host-name", d->remoteHost);
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}
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#endif
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#ifdef HAVE_VTS
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if (d->serverVT > 0) {
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char device[20];
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/* FIXME: how does xorg construct this */
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sprintf(device, "/dev/tty%d", d->serverVT);
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add_param_string (&iter_struct, "x11-display-device", device);
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}
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#endif
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dbus_message_iter_close_container (&iter, &iter_struct);
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reply = dbus_connection_send_with_reply_and_block (connection,
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message,
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-1, &error);
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if (dbus_error_is_set (&error)) {
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Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
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reply = NULL;
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}
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dbus_connection_flush (connection);
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dbus_message_unref (message);
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dbus_error_free (&error);
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|
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if (reply != NULL) {
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const char *value;
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dbus_message_iter_init (reply, &iter);
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dbus_message_iter_get_basic (&iter, &value);
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cookie = strdup (value);
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dbus_message_unref (reply);
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}
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return cookie;
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}
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void
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close_ck_session (const char *cookie)
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{
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DBusError error;
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DBusMessage *message;
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DBusMessage *reply;
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DBusMessageIter iter;
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if (cookie == NULL) {
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return;
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}
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if (private_connection == NULL) {
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return;
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}
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dbus_error_init (&error);
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message = dbus_message_new_method_call (CK_NAME,
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CK_MANAGER_PATH,
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CK_MANAGER_INTERFACE,
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"CloseSession");
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if (message == NULL) {
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Debug ("ConsoleKit: Couldn't allocate the D-Bus message");
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return;
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}
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dbus_message_iter_init_append (message, &iter);
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dbus_message_iter_append_basic (&iter,
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DBUS_TYPE_STRING,
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&cookie);
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reply = dbus_connection_send_with_reply_and_block (private_connection,
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message,
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-1, &error);
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if (dbus_error_is_set (&error)) {
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Debug ("ConsoleKit: %s raised:\n %s\n\n", error.name, error.message);
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reply = NULL;
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}
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dbus_connection_flush (private_connection);
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dbus_message_unref (message);
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dbus_error_free (&error);
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dbus_connection_close (private_connection);
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private_connection = NULL;
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}
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