daemon/lash_server.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2011 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains implementation of lash_server singleton object
   9  **************************************************************************
  10  *
  11  * LADI Session Handler is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * LADI Session Handler is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23  * or write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #include "lash_server.h"
  28 #include "../dbus_constants.h"
  29 #include "virtualizer.h"
  30
  31 static cdbus_object_path ladishd_g_lash_server_dbus_object;
  32 extern const struct cdbus_interface_descriptor g_iface_lash_server;
  33
  34 bool lash_server_init(void)
  35 {
  36   ladishd_g_lash_server_dbus_object = cdbus_object_path_new(
  37     LASH_SERVER_OBJECT_PATH,
  38     &g_iface_lash_server, NULL,
  39     NULL);
  40   if (ladishd_g_lash_server_dbus_object == NULL)
  41   {
  42     return false;
  43   }
  44
  45   if (!cdbus_object_path_register(cdbus_g_dbus_connection, ladishd_g_lash_server_dbus_object))
  46   {
  47     cdbus_object_path_destroy(cdbus_g_dbus_connection, ladishd_g_lash_server_dbus_object);
  48     return false;
  49   }
  50
  51   return true;
  52 }
  53
  54 void lash_server_uninit(void)
  55 {
  56   cdbus_object_path_destroy(cdbus_g_dbus_connection, ladishd_g_lash_server_dbus_object);
  57 }
  58
  59 /**********************************************************************************/
  60 /*                                D-Bus methods                                   */
  61 /**********************************************************************************/
  62
  63 static void lash_server_register_client(struct cdbus_method_call * call_ptr)
  64 {
  65   const char * sender;
  66   const char * class;
  67   dbus_uint64_t pid;
  68   dbus_uint32_t flags;
  69   ladish_app_handle app;
  70
  71   if (!dbus_message_get_args(
  72         call_ptr->message,
  73         &cdbus_g_dbus_error,
  74         DBUS_TYPE_UINT64, &pid,
  75         DBUS_TYPE_STRING, &class,
  76         DBUS_TYPE_UINT32, &flags,
  77         DBUS_TYPE_INVALID))
  78   {
  79     cdbus_error(call_ptr, DBUS_ERROR_INVALID_ARGS, "Invalid arguments to method \"%s\": %s",  call_ptr->method_name, cdbus_g_dbus_error.message);
  80     dbus_error_free(&cdbus_g_dbus_error);
  81     return;
  82   }
  83
  84   sender = dbus_message_get_sender(call_ptr->message);
  85
  86   log_info("LASH client registered. pid=%"PRIu64" dbusname='%s' class='%s' flags=0x%"PRIu32")", pid, sender, class, flags);
  87
  88   app = ladish_find_app_by_pid((pid_t)pid, NULL);
  89   if (app == NULL)
  90   {
  91     log_error("Unknown LASH app registered");
  92     return;
  93   }
  94
  95   ladish_app_set_dbus_name(app, sender);
  96   ladish_app_restore(app);
  97 }
  98
  99 CDBUS_METHOD_ARGS_BEGIN(RegisterClient, "Register LASH client")
 100   CDBUS_METHOD_ARG_DESCRIBE_IN("class", DBUS_TYPE_STRING_AS_STRING, "LASH app class")
 101   CDBUS_METHOD_ARG_DESCRIBE_IN("flags", DBUS_TYPE_UINT32_AS_STRING, "LASH app flags")
 102 CDBUS_METHOD_ARGS_END
 103
 104 CDBUS_METHODS_BEGIN
 105   CDBUS_METHOD_DESCRIBE(RegisterClient, lash_server_register_client)
 106 CDBUS_METHODS_END
 107
 108 CDBUS_INTERFACE_DEFAULT_HANDLER_METHODS_ONLY(g_iface_lash_server, IFACE_LASH_SERVER)