/*
 * Process Hacker Extra Plugins -
 *   Firewall Monitor
 *
 * Copyright (C) 2015 dmex
 *
 * This file is part of Process Hacker.
 *
 * Process Hacker is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Process Hacker is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Process Hacker.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "fwmon.h"

PPH_PLUGIN PluginInstance;
static PH_CALLBACK_REGISTRATION PluginLoadCallbackRegistration;
static PH_CALLBACK_REGISTRATION PluginUnloadCallbackRegistration;
static PH_CALLBACK_REGISTRATION PluginShowOptionsCallbackRegistration;
static PH_CALLBACK_REGISTRATION MainWindowShowingCallbackRegistration;

static VOID NTAPI LoadCallback(
    _In_opt_ PVOID Parameter,
    _In_opt_ PVOID Context
    )
{
    FwEnabled = StartFwMonitor();
}

static VOID NTAPI UnloadCallback(
    _In_opt_ PVOID Parameter,
    _In_opt_ PVOID Context
    )
{ 
    StopFwMonitor();
    SaveSettingsFwTreeList();
}

static VOID NTAPI ShowOptionsCallback(
    _In_opt_ PVOID Parameter,
    _In_opt_ PVOID Context
    )
{
    NOTHING;
}

static VOID NTAPI MainWindowShowingCallback(
    _In_opt_ PVOID Parameter,
    _In_opt_ PVOID Context
    )
{
    InitializeFwTab();
}

LOGICAL DllMain(
    _In_ HINSTANCE Instance,
    _In_ ULONG Reason,
    _Reserved_ PVOID Reserved
    )
{
    switch (Reason)
    {
    case DLL_PROCESS_ATTACH:
        {
            PPH_PLUGIN_INFORMATION info;
            PH_SETTING_CREATE settings[] =
            {
                { StringSettingType, SETTING_NAME_FW_TREE_LIST_COLUMNS, L"" },
                { IntegerPairSettingType, SETTING_NAME_FW_TREE_LIST_SORT, L"0,2" }
            };

            PluginInstance = PhRegisterPlugin(PLUGIN_NAME, Instance, &info);

            if (!PluginInstance)
                return FALSE;

            info->DisplayName = L"Firewall Monitor";
            info->Author = L"dmex";
            info->Description = L"Adds a new tab for monitoring kernel/process firewall events.";
            info->HasOptions = FALSE;

            PhRegisterCallback(
                PhGetPluginCallback(PluginInstance, PluginCallbackLoad),
                LoadCallback,
                NULL,
                &PluginLoadCallbackRegistration
                );
            PhRegisterCallback(
                PhGetPluginCallback(PluginInstance, PluginCallbackUnload),
                UnloadCallback,
                NULL,
                &PluginUnloadCallbackRegistration
                );
            PhRegisterCallback(
                PhGetPluginCallback(PluginInstance, PluginCallbackShowOptions),
                ShowOptionsCallback,
                NULL,
                &PluginShowOptionsCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackMainWindowShowing),
                MainWindowShowingCallback,
                NULL,
                &MainWindowShowingCallbackRegistration
                );

            PhAddSettings(settings, ARRAYSIZE(settings));       
        }
        break;
    }

    return TRUE;
}