src/stc-manager.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <signal.h>
  18 #include "stc-manager.h"
  19 #include "stc-emulator.h"
  20 #include "stc-statistics.h"
  21 #include "stc-restriction.h"
  22 #include "stc-manager-gdbus.h"
  23 #include "stc-db.h"
  24 #include "counter.h"
  25 #include "table-restrictions.h"
  26 #include "helper-cgroup.h"
  27 #include "helper-nfacct-rule.h"
  28 #include "stc-monitor.h"
  29 #include "stc-manager-plugin.h"
  30
  31 static stc_s *g_stc = NULL;
  32
  33 static void __stc_manager_deinit(void)
  34 {
  35         __STC_LOG_FUNC_ENTER__;
  36
  37         if (!g_stc) {
  38                 STC_LOGE("Memory for manager structure is not allocated");
  39                 return;
  40         }
  41
  42         stc_monitor_deinit();
  43         stc_deinit_db_guard();
  44         stc_db_deinitialize();
  45         stc_manager_gdbus_deinit((gpointer)g_stc);
  46         stc_manager_plugin_deinit();
  47
  48         STC_LOGI("stc manager deinitialized");
  49         FREE(g_stc);
  50         __STC_LOG_FUNC_EXIT__;
  51 }
  52
  53 static stc_s *__stc_manager_init(void)
  54 {
  55         __STC_LOG_FUNC_ENTER__;
  56         stc_s *stc;
  57         stc_error_e err = STC_ERROR_NONE;
  58
  59         stc = MALLOC0(stc_s, 1);
  60         if (!stc) {
  61                 STC_LOGE("Failed to allocate memory for manager structure");
  62                 return NULL;
  63         }
  64         g_stc = stc;
  65
  66         cgroup_set_release_agent(NET_CLS_SUBSYS, NET_RELEASE_AGENT);
  67
  68         EXEC(STC_ERROR_NONE, stc_db_initialize());
  69
  70         err = stc_monitor_init();
  71         if (err != STC_ERROR_NONE)
  72                 goto handle_error;
  73
  74         stc_manager_gdbus_init((gpointer)stc);
  75         stc_manager_plugin_init();
  76
  77         STC_LOGI("stc manager initialized");
  78         __STC_LOG_FUNC_EXIT__;
  79         return stc;
  80
  81 handle_error:
  82         STC_LOGD("Failed to initialize stc manager");
  83         __stc_manager_deinit();
  84         return NULL;
  85 }
  86
  87 stc_s *stc_get_manager(void)
  88 {
  89         return g_stc;
  90 }
  91
  92 gint32 main(gint32 argc, gchar *argv[])
  93 {
  94         GMainLoop *main_loop = NULL;
  95         gint32 ret = -1;
  96
  97         STC_LOGI("Smart Traffic Control Manager");
  98
  99         if (daemon(0, 0) != 0)
 100                 STC_LOGE("Can't start daemon");
 101
 102         /* Initialize required subsystems */
 103 #if !GLIB_CHECK_VERSION(2, 35, 0)
 104         g_type_init();
 105 #endif
 106
 107         /* Crate the GLIB main loop */
 108         main_loop = g_main_loop_new(NULL, FALSE);
 109
 110         stc_emulator_check_environment();
 111         if (stc_emulator_is_emulated() == FALSE) {
 112                 g_stc = __stc_manager_init();
 113                 if (!g_stc)
 114                         goto fail;
 115                 g_stc->main_loop = main_loop;
 116         }
 117
 118         /* Run the main loop */
 119         g_main_loop_run(main_loop);
 120
 121         ret = 0;
 122
 123 fail:
 124         if (stc_emulator_is_emulated() == FALSE)
 125                 __stc_manager_deinit();
 126
 127         if (main_loop)
 128                 g_main_loop_unref(main_loop);
 129
 130         return ret;
 131 }