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         if (!stc_plugin_enabled) {
  73                 if (STC_DEBUG_LOG)
  74                         STC_LOGE("Plugin wasn't enabled");
  75                 return STC_ERROR_UNINITIALIZED;
  76         }
  77
  78         if (!stc_plugin) {
  79                 if (STC_DEBUG_LOG)
  80                         STC_LOGE("Plugin wasn't loaded");
  81                 return STC_ERROR_UNINITIALIZED;
  82         }
  83
  84         return stc_plugin->lookup_dev();
  85 }
  86
  87 int stc_plugin_pcap_lookup_net(void)
  88 {
  89         if (!stc_plugin_enabled) {
  90                 if (STC_DEBUG_LOG)
  91                         STC_LOGE("Plugin wasn't enabled");
  92                 return STC_ERROR_UNINITIALIZED;
  93         }
  94
  95         if (!stc_plugin) {
  96                 if (STC_DEBUG_LOG)
  97                         STC_LOGE("Plugin wasn't loaded");
  98                 return STC_ERROR_UNINITIALIZED;
  99         }
 100
 101         return stc_plugin->lookup_net();
 102 }
 103
 104 int stc_plugin_pcap_find_alldevs(void)
 105 {
 106         if (!stc_plugin_enabled) {
 107                 if (STC_DEBUG_LOG)
 108                         STC_LOGE("Plugin wasn't enabled");
 109                 return STC_ERROR_UNINITIALIZED;
 110         }
 111
 112         if (!stc_plugin) {
 113                 if (STC_DEBUG_LOG)
 114                         STC_LOGE("Plugin wasn't loaded");
 115                 return STC_ERROR_UNINITIALIZED;
 116         }
 117
 118         return stc_plugin->find_alldevs();
 119 }
 120
 121 int stc_plugin_pcap_register_loop_pcap(const char *ifname,
 122                         int group)
 123 {
 124         if (!stc_plugin_enabled) {
 125                 if (STC_DEBUG_LOG)
 126                         STC_LOGE("Plugin wasn't enabled");
 127                 return STC_ERROR_UNINITIALIZED;
 128         }
 129
 130         if (!stc_plugin) {
 131                 if (STC_DEBUG_LOG)
 132                         STC_LOGE("Plugin wasn't loaded");
 133                 return STC_ERROR_UNINITIALIZED;
 134         }
 135
 136         return stc_plugin->register_loop_pcap(ifname, group);
 137 }
 138
 139 int stc_plugin_pcap_unregister_loop_pcap(const char *ifname,
 140                         int group)
 141 {
 142         if (!stc_plugin_enabled) {
 143                 if (STC_DEBUG_LOG)
 144                         STC_LOGE("Plugin wasn't enabled");
 145                 return STC_ERROR_UNINITIALIZED;
 146         }
 147
 148         if (!stc_plugin) {
 149                 if (STC_DEBUG_LOG)
 150                         STC_LOGE("Plugin wasn't loaded");
 151                 return STC_ERROR_UNINITIALIZED;
 152         }
 153
 154         return stc_plugin->unregister_loop_pcap(ifname, group);
 155 }
 156 //LCOV_EXCL_STOP