src/stc-manager-plugin-pcap.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 <dlfcn.h>
  18
  19 #include "stc-manager.h"
  20 #include "stc-manager-plugin-pcap.h"
  21
  22 static gboolean stc_plugin_enabled = FALSE;
  23 static void *handle_plugin;
  24 static stc_plugin_pcap_s *stc_plugin;
  25
  26 //LCOV_EXCL_START
  27 int stc_plugin_pcap_init(void)
  28 {
  29         __STC_LOG_FUNC_ENTER__;
  30
  31         handle_plugin = dlopen(STC_PLUGIN_PCAP_FILEPATH, RTLD_NOW);
  32         if (!handle_plugin) {
  33                 STC_LOGE("Can't load %s: %s", STC_PLUGIN_PCAP_FILEPATH, dlerror());
  34                 __STC_LOG_FUNC_EXIT__;
  35                 return STC_ERROR_UNINITIALIZED;
  36         }
  37
  38         stc_plugin = dlsym(handle_plugin, "stc_plugin_pcap");
  39         if (!stc_plugin) {
  40                 STC_LOGE("Can't load symbol: %s", dlerror());
  41                 dlclose(handle_plugin);
  42                 __STC_LOG_FUNC_EXIT__;
  43                 return STC_ERROR_UNINITIALIZED;
  44         }
  45
  46         stc_plugin->initialize_plugin();
  47         stc_plugin_enabled = TRUE;
  48
  49         __STC_LOG_FUNC_EXIT__;
  50         return STC_ERROR_NONE;
  51 }
  52
  53 int stc_plugin_pcap_deinit(void)
  54 {
  55         __STC_LOG_FUNC_ENTER__;
  56
  57         if (!stc_plugin_enabled) {
  58                 __STC_LOG_FUNC_EXIT__;
  59                 return STC_ERROR_UNINITIALIZED;
  60         }
  61
  62         stc_plugin->deinitialize_plugin();
  63         stc_plugin_enabled = FALSE;
  64         dlclose(handle_plugin);
  65
  66         __STC_LOG_FUNC_EXIT__;
  67         return STC_ERROR_NONE;
  68 }
  69
  70 int stc_plugin_pcap_lookup_dev(void)
  71 {
  72         __STC_LOG_FUNC_ENTER__;
  73
  74         if (!stc_plugin_enabled) {
  75                 STC_LOGE("Plugin wasn't enabled");
  76                 __STC_LOG_FUNC_EXIT__;
  77                 return STC_ERROR_UNINITIALIZED;
  78         }
  79
  80         if (!stc_plugin) {
  81                 STC_LOGE("Plugin wasn't loaded");
  82                 __STC_LOG_FUNC_EXIT__;
  83                 return STC_ERROR_UNINITIALIZED;
  84         }
  85
  86         __STC_LOG_FUNC_EXIT__;
  87         return stc_plugin->lookup_dev();
  88 }
  89
  90 int stc_plugin_pcap_lookup_net(void)
  91 {
  92         __STC_LOG_FUNC_ENTER__;
  93
  94         if (!stc_plugin_enabled) {
  95                 STC_LOGE("Plugin wasn't enabled");
  96                 __STC_LOG_FUNC_EXIT__;
  97                 return STC_ERROR_UNINITIALIZED;
  98         }
  99
 100         if (!stc_plugin) {
 101                 STC_LOGE("Plugin wasn't loaded");
 102                 __STC_LOG_FUNC_EXIT__;
 103                 return STC_ERROR_UNINITIALIZED;
 104         }
 105
 106         __STC_LOG_FUNC_EXIT__;
 107         return stc_plugin->lookup_net();
 108 }
 109
 110 int stc_plugin_pcap_find_alldevs(void)
 111 {
 112         __STC_LOG_FUNC_ENTER__;
 113
 114         if (!stc_plugin_enabled) {
 115                 STC_LOGE("Plugin wasn't enabled");
 116                 __STC_LOG_FUNC_EXIT__;
 117                 return STC_ERROR_UNINITIALIZED;
 118         }
 119
 120         if (!stc_plugin) {
 121                 STC_LOGE("Plugin wasn't loaded");
 122                 __STC_LOG_FUNC_EXIT__;
 123                 return STC_ERROR_UNINITIALIZED;
 124         }
 125
 126         __STC_LOG_FUNC_EXIT__;
 127         return stc_plugin->find_alldevs();
 128 }
 129
 130 int stc_plugin_pcap_register_loop_pcap(const char *ifname,
 131                         int group)
 132 {
 133         __STC_LOG_FUNC_ENTER__;
 134
 135         if (!stc_plugin_enabled) {
 136                 STC_LOGE("Plugin wasn't enabled");
 137                 __STC_LOG_FUNC_EXIT__;
 138                 return STC_ERROR_UNINITIALIZED;
 139         }
 140
 141         if (!stc_plugin) {
 142                 STC_LOGE("Plugin wasn't loaded");
 143                 __STC_LOG_FUNC_EXIT__;
 144                 return STC_ERROR_UNINITIALIZED;
 145         }
 146
 147         __STC_LOG_FUNC_EXIT__;
 148         return stc_plugin->register_loop_pcap(ifname, group);
 149 }
 150
 151 int stc_plugin_pcap_unregister_loop_pcap(const char *ifname,
 152                         int group)
 153 {
 154         __STC_LOG_FUNC_ENTER__;
 155
 156         if (!stc_plugin_enabled) {
 157                 STC_LOGE("Plugin wasn't enabled");
 158                 __STC_LOG_FUNC_EXIT__;
 159                 return STC_ERROR_UNINITIALIZED;
 160         }
 161
 162         if (!stc_plugin) {
 163                 STC_LOGE("Plugin wasn't loaded");
 164                 __STC_LOG_FUNC_EXIT__;
 165                 return STC_ERROR_UNINITIALIZED;
 166         }
 167
 168         __STC_LOG_FUNC_EXIT__;
 169         return stc_plugin->unregister_loop_pcap(ifname, group);
 170 }
 171 //LCOV_EXCL_STOP