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Started moving from WireGuard for Windows to embeddable-dll-service

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This commit is contained in:
Steven Tracey
2024-10-17 23:49:10 -04:00
parent 27be80e430
commit 8c484f9c23
32 changed files with 939 additions and 1016 deletions
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src/main/cpp/.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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WireGuardJNI

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<?xml version="1.0" encoding="UTF-8"?>
<module classpath="CMake" type="CPP_MODULE" version="4" />

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/cpp.iml" filepath="$PROJECT_DIR$/.idea/cpp.iml" />
</modules>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
</component>
</project>

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src/main/cpp/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.10)
project(WireGuardJNI)
# Set the C standard and C++ standard (optional if needed)
set(CMAKE_C_STANDARD 99)
set(CMAKE_CXX_STANDARD 11)
# Specify where the JDK is located
set(JAVA_HOME "C:/Program Files/Java/openjdk-21")
set(JNI_INCLUDE_DIR "${JAVA_HOME}/include")
set(JNI_INCLUDE_DIR2 "${JAVA_HOME}/include/win32")
# Include the JNI header files
include_directories(${JNI_INCLUDE_DIR} ${JNI_INCLUDE_DIR2})
# Add the source file that includes your JNI C wrapper code
add_library(wireguard_wrapper SHARED wireguard_wrapper.c)
# Optionally, you can specify output directory for the compiled library
set_target_properties(wireguard_wrapper PROPERTIES
LIBRARY_OUTPUT_DIRECTORY build/lib
OUTPUT_NAME "wireguard_wrapper"
)

117
src/main/cpp/tech_nevets_tvpn_wg_WireGuardJNI.h Normal file
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/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class tech_nevets_tvpn_wg_WireGuardJNI */
#ifndef _Included_tech_nevets_tvpn_wg_WireGuardJNI
#define _Included_tech_nevets_tvpn_wg_WireGuardJNI
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: installAdapter
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_installAdapter
(JNIEnv *, jobject);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: removeAdapter
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_removeAdapter
(JNIEnv *, jobject);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: startTunnel
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_startTunnel
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: stopTunnel
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_stopTunnel
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: createTunnel
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_createTunnel
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: deleteTunnel
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_deleteTunnel
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: getConfig
* Signature: (Ljava/lang/String;)Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_getConfig
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: updateConfig
* Signature: (Ljava/lang/String;Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_updateConfig
(JNIEnv *, jobject, jstring, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: addConfig
* Signature: (Ljava/lang/String;Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_addConfig
(JNIEnv *, jobject, jstring, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: getActiveTunnel
* Signature: ()Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_getActiveTunnel
(JNIEnv *, jobject);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: isActive
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_isActive
(JNIEnv *, jobject);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: initializeWireGuard
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_initializeWireGuard
(JNIEnv *, jobject, jstring);
/*
* Class: tech_nevets_tvpn_wg_WireGuardJNI
* Method: cleanup
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_cleanup
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif

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/* SPDX-License-Identifier: GPL-2.0 OR MIT
*
* Copyright (C) 2018-2021 WireGuard LLC. All Rights Reserved.
*/
#pragma once
#include <winsock2.h>
#include <windows.h>
#include <ipexport.h>
#include <ifdef.h>
#include <ws2ipdef.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef ALIGNED
# if defined(_MSC_VER)
# define ALIGNED(n) __declspec(align(n))
# elif defined(__GNUC__)
# define ALIGNED(n) __attribute__((aligned(n)))
# else
# error "Unable to define ALIGNED"
# endif
#endif
/* MinGW is missing this one, unfortunately. */
#ifndef _Post_maybenull_
# define _Post_maybenull_
#endif
#pragma warning(push)
#pragma warning(disable : 4324) /* structure was padded due to alignment specifier */
/**
* A handle representing WireGuard adapter
*/
typedef struct _WIREGUARD_ADAPTER *WIREGUARD_ADAPTER_HANDLE;
/**
* Creates a new WireGuard adapter.
*
* @param Name The requested name of the adapter. Zero-terminated string of up to MAX_ADAPTER_NAME-1
* characters.
*
* @param TunnelType Name of the adapter tunnel type. Zero-terminated string of up to MAX_ADAPTER_NAME-1
* characters.
*
* @param RequestedGUID The GUID of the created network adapter, which then influences NLA generation deterministically.
* If it is set to NULL, the GUID is chosen by the system at random, and hence a new NLA entry is
* created for each new adapter. It is called "requested" GUID because the API it uses is
* completely undocumented, and so there could be minor interesting complications with its usage.
*
* @return If the function succeeds, the return value is the adapter handle. Must be released with
* WireGuardCloseAdapter. If the function fails, the return value is NULL. To get extended error information, call
* GetLastError.
*/
typedef _Must_inspect_result_
_Return_type_success_(return != NULL)
_Post_maybenull_
WIREGUARD_ADAPTER_HANDLE(WINAPI WIREGUARD_CREATE_ADAPTER_FUNC)
(_In_z_ LPCWSTR Name, _In_z_ LPCWSTR TunnelType, _In_opt_ const GUID *RequestedGUID);
/**
* Opens an existing WireGuard adapter.
*
* @param Name The requested name of the adapter. Zero-terminated string of up to MAX_ADAPTER_NAME-1
* characters.
*
* @return If the function succeeds, the return value is the adapter handle. Must be released with
* WireGuardCloseAdapter. If the function fails, the return value is NULL. To get extended error information, call
* GetLastError.
*/
typedef _Must_inspect_result_
_Return_type_success_(return != NULL)
_Post_maybenull_
WIREGUARD_ADAPTER_HANDLE(WINAPI WIREGUARD_OPEN_ADAPTER_FUNC)(_In_z_ LPCWSTR Name);
/**
* Releases WireGuard adapter resources and, if adapter was created with WireGuardCreateAdapter, removes adapter.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter.
*/
typedef VOID(WINAPI WIREGUARD_CLOSE_ADAPTER_FUNC)(_In_opt_ WIREGUARD_ADAPTER_HANDLE Adapter);
/**
* Deletes the WireGuard driver if there are no more adapters in use.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError.
*/
typedef _Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_DELETE_DRIVER_FUNC)(VOID);
/**
* Returns the LUID of the adapter.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param Luid Pointer to LUID to receive adapter LUID.
*/
typedef VOID(WINAPI WIREGUARD_GET_ADAPTER_LUID_FUNC)(_In_ WIREGUARD_ADAPTER_HANDLE Adapter, _Out_ NET_LUID *Luid);
/**
* Determines the version of the WireGuard driver currently loaded.
*
* @return If the function succeeds, the return value is the version number. If the function fails, the return value is
* zero. To get extended error information, call GetLastError. Possible errors include the following:
* ERROR_FILE_NOT_FOUND WireGuard not loaded
*/
typedef _Return_type_success_(return != 0)
DWORD(WINAPI WIREGUARD_GET_RUNNING_DRIVER_VERSION_FUNC)(VOID);
/**
* Determines the level of logging, passed to WIREGUARD_LOGGER_CALLBACK.
*/
typedef enum
{
WIREGUARD_LOG_INFO, /**< Informational */
WIREGUARD_LOG_WARN, /**< Warning */
WIREGUARD_LOG_ERR /**< Error */
} WIREGUARD_LOGGER_LEVEL;
/**
* Called by internal logger to report diagnostic messages
*
* @param Level Message level.
*
* @param Timestamp Message timestamp in in 100ns intervals since 1601-01-01 UTC.
*
* @param Message Message text.
*/
typedef VOID(CALLBACK *WIREGUARD_LOGGER_CALLBACK)(
_In_ WIREGUARD_LOGGER_LEVEL Level,
_In_ DWORD64 Timestamp,
_In_z_ LPCWSTR Message);
/**
* Sets logger callback function.
*
* @param NewLogger Pointer to callback function to use as a new global logger. NewLogger may be called from various
* threads concurrently. Should the logging require serialization, you must handle serialization in
* NewLogger. Set to NULL to disable.
*/
typedef VOID(WINAPI WIREGUARD_SET_LOGGER_FUNC)(_In_ WIREGUARD_LOGGER_CALLBACK NewLogger);
/**
* Whether and how logs from the driver are collected for the callback function.
*/
typedef enum
{
WIREGUARD_ADAPTER_LOG_OFF, /**< No logs are generated from the driver. */
WIREGUARD_ADAPTER_LOG_ON, /**< Logs are generated from the driver. */
WIREGUARD_ADAPTER_LOG_ON_WITH_PREFIX /**< Logs are generated from the driver, index-prefixed. */
} WIREGUARD_ADAPTER_LOG_STATE;
/**
* Sets whether and how the adapter logs to the logger previously set up with WireGuardSetLogger.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param LogState Adapter logging state.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError.
*/
typedef _Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_SET_ADAPTER_LOGGING_FUNC)
(_In_ WIREGUARD_ADAPTER_HANDLE Adapter, _In_ WIREGUARD_ADAPTER_LOG_STATE LogState);
/**
* Determines the state of the adapter.
*/
typedef enum
{
WIREGUARD_ADAPTER_STATE_DOWN, /**< Down */
WIREGUARD_ADAPTER_STATE_UP, /**< Up */
} WIREGUARD_ADAPTER_STATE;
/**
* Sets the adapter state of the WireGuard adapter. Note: sockets are owned by the process that sets the state to up.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param State Adapter state.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError.
*/
typedef _Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_SET_ADAPTER_STATE_FUNC)
(_In_ WIREGUARD_ADAPTER_HANDLE Adapter, _In_ WIREGUARD_ADAPTER_STATE State);
/**
* Gets the adapter state of the WireGuard adapter.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param State Pointer to adapter state.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError.
*/
typedef _Must_inspect_result_
_Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_GET_ADAPTER_STATE_FUNC)
(_In_ WIREGUARD_ADAPTER_HANDLE Adapter, _Out_ WIREGUARD_ADAPTER_STATE *State);
#define WIREGUARD_KEY_LENGTH 32
typedef struct _WIREGUARD_ALLOWED_IP WIREGUARD_ALLOWED_IP;
struct ALIGNED(8) _WIREGUARD_ALLOWED_IP
{
union
{
IN_ADDR V4;
IN6_ADDR V6;
} Address; /**< IP address */
ADDRESS_FAMILY AddressFamily; /**< Address family, either AF_INET or AF_INET6 */
BYTE Cidr; /**< CIDR of allowed IPs */
};
typedef enum
{
WIREGUARD_PEER_HAS_PUBLIC_KEY = 1 << 0, /**< The PublicKey field is set */
WIREGUARD_PEER_HAS_PRESHARED_KEY = 1 << 1, /**< The PresharedKey field is set */
WIREGUARD_PEER_HAS_PERSISTENT_KEEPALIVE = 1 << 2, /**< The PersistentKeepAlive field is set */
WIREGUARD_PEER_HAS_ENDPOINT = 1 << 3, /**< The Endpoint field is set */
WIREGUARD_PEER_REPLACE_ALLOWED_IPS = 1 << 5, /**< Remove all allowed IPs before adding new ones */
WIREGUARD_PEER_REMOVE = 1 << 6, /**< Remove specified peer */
WIREGUARD_PEER_UPDATE = 1 << 7 /**< Do not add a new peer */
} WIREGUARD_PEER_FLAG;
typedef struct _WIREGUARD_PEER WIREGUARD_PEER;
struct ALIGNED(8) _WIREGUARD_PEER
{
WIREGUARD_PEER_FLAG Flags; /**< Bitwise combination of flags */
DWORD Reserved; /**< Reserved; must be zero */
BYTE PublicKey[WIREGUARD_KEY_LENGTH]; /**< Public key, the peer's primary identifier */
BYTE PresharedKey[WIREGUARD_KEY_LENGTH]; /**< Preshared key for additional layer of post-quantum resistance */
WORD PersistentKeepalive; /**< Seconds interval, or 0 to disable */
SOCKADDR_INET Endpoint; /**< Endpoint, with IP address and UDP port number*/
DWORD64 TxBytes; /**< Number of bytes transmitted */
DWORD64 RxBytes; /**< Number of bytes received */
DWORD64 LastHandshake; /**< Time of the last handshake, in 100ns intervals since 1601-01-01 UTC */
DWORD AllowedIPsCount; /**< Number of allowed IP structs following this struct */
};
typedef enum
{
WIREGUARD_INTERFACE_HAS_PUBLIC_KEY = (1 << 0), /**< The PublicKey field is set */
WIREGUARD_INTERFACE_HAS_PRIVATE_KEY = (1 << 1), /**< The PrivateKey field is set */
WIREGUARD_INTERFACE_HAS_LISTEN_PORT = (1 << 2), /**< The ListenPort field is set */
WIREGUARD_INTERFACE_REPLACE_PEERS = (1 << 3) /**< Remove all peers before adding new ones */
} WIREGUARD_INTERFACE_FLAG;
typedef struct _WIREGUARD_INTERFACE WIREGUARD_INTERFACE;
struct ALIGNED(8) _WIREGUARD_INTERFACE
{
WIREGUARD_INTERFACE_FLAG Flags; /**< Bitwise combination of flags */
WORD ListenPort; /**< Port for UDP listen socket, or 0 to choose randomly */
BYTE PrivateKey[WIREGUARD_KEY_LENGTH]; /**< Private key of interface */
BYTE PublicKey[WIREGUARD_KEY_LENGTH]; /**< Corresponding public key of private key */
DWORD PeersCount; /**< Number of peer structs following this struct */
};
/**
* Sets the configuration of the WireGuard adapter.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param Config Configuration for the adapter.
*
* @param Bytes Number of bytes in Config allocation.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError.
*/
typedef _Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_SET_CONFIGURATION_FUNC)
(_In_ WIREGUARD_ADAPTER_HANDLE Adapter, _In_reads_bytes_(Bytes) const WIREGUARD_INTERFACE *Config, _In_ DWORD Bytes);
/**
* Gets the configuration of the WireGuard adapter.
*
* @param Adapter Adapter handle obtained with WireGuardCreateAdapter or WireGuardOpenAdapter
*
* @param Config Configuration for the adapter.
*
* @param Bytes Pointer to number of bytes in Config allocation.
*
* @return If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To
* get extended error information, call GetLastError, which if ERROR_MORE_DATA, Bytes is updated with the
* required size.
*/
typedef _Must_inspect_result_
_Return_type_success_(return != FALSE)
BOOL(WINAPI WIREGUARD_GET_CONFIGURATION_FUNC)
(_In_ WIREGUARD_ADAPTER_HANDLE Adapter,
_Out_writes_bytes_all_(*Bytes) WIREGUARD_INTERFACE *Config,
_Inout_ DWORD *Bytes);
#pragma warning(pop)
#ifdef __cplusplus
}
#endif

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src/main/cpp/wireguard_wrapper.c Normal file
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#include <jni.h>
#include <stdio.h>
#include <winsock2.h>
#include <windows.h>
#include "wireguard.h"
#include <string.h>
#include "tech_nevets_tvpn_wg_WireGuardJNI.h"
const char *APP_DIR = "C:\\Program Files\\TVPN\\";
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_createTunnel(JNIEnv *env, jobject obj, jstring tunnelName) {
const char *tunnelCharArr = (*env)->GetStringUTFChars(env, tunnelName, NULL);
if (tunnelCharArr == NULL) {
return 1;
}
char *initialServiceName = "WireGuardTunnel$";
char *tnlName = malloc(strlen(initialServiceName) + strlen(tunnelCharArr) + 1);
strcpy(tnlName, initialServiceName);
strcat(tnlName, tunnelCharArr);
char *initialDisplayName = "WireGuard Tunnel: ";
char *displayName = malloc(strlen(initialDisplayName) + strlen(tunnelCharArr) + 1);
strcpy(displayName, initialDisplayName);
strcat(displayName, tunnelCharArr);
SC_HANDLE hSCManager = OpenSCManager(
NULL,
NULL,
SC_MANAGER_ALL_ACCESS
);
if (hSCManager == NULL) {
printf("OpenSCManager failed (%lu)\n", GetLastError());
return 2;
}
char *params = "TVPN.exe /installtunnelservice ";
char *conf = ".conf";
char *exePath = malloc(strlen(APP_DIR) + strlen(params) + strlen(tunnelCharArr) + strlen(conf) + 1);
strcpy(exePath, APP_DIR);
strcat(exePath, params);
strcat(exePath, tunnelCharArr);
strcat(exePath, conf);
SC_HANDLE hService = CreateServiceA(
hSCManager,
tnlName,
displayName,
SERVICE_ALL_ACCESS,
SERVICE_WIN32_OWN_PROCESS,
SERVICE_AUTO_START,
SERVICE_ERROR_NORMAL,
exePath,
NULL,
NULL,
"Nsi\0TcpIp\0\0",
NULL,
NULL
);
DWORD sid_info = SERVICE_SID_TYPE_UNRESTRICTED;
if (!ChangeServiceConfig2A(hService, SERVICE_CONFIG_SERVICE_SID_INFO, &sid_info)) {
printf("ChangeServiceConfig2W failed (%lu)\n", GetLastError());
(*env)->ReleaseStringUTFChars(env, tunnelName, tunnelCharArr);
free(tnlName);
free(displayName);
free(exePath);
CloseServiceHandle(hSCManager);
CloseServiceHandle(hService);
return 3;
}
(*env)->ReleaseStringUTFChars(env, tunnelName, tunnelCharArr);
free(tnlName);
free(displayName);
free(exePath);
CloseServiceHandle(hSCManager);
CloseServiceHandle(hService);
return 0;
}
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_deleteTunnel(JNIEnv *env, jobject obj, jstring tunnelName) {
const char *nativeString = (*env)->GetStringUTFChars(env, tunnelName, NULL);
char *initialServiceName = "WireGuardTunnel$";
char *tnlName = malloc(strlen(initialServiceName) + strlen(nativeString) + 1);
strcpy(tnlName, initialServiceName);
strcat(tnlName, nativeString);
SC_HANDLE hSCManager = OpenSCManager(
NULL,
NULL,
SC_MANAGER_ALL_ACCESS
);
if (hSCManager == NULL) {
// Handle error
return 1;
}
SC_HANDLE hService = OpenServiceA(hSCManager, tnlName, DELETE);
if (hService != NULL) {
if (!DeleteService(hService)) {
// Handle error
return 2;
}
CloseServiceHandle(hService);
} else {
// Handle error
return 3;
}
CloseServiceHandle(hSCManager);
(*env)->ReleaseStringUTFChars(env, tunnelName, nativeString);
free(tnlName);
return 0;
}
JNIEXPORT jint JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_initializeWireGuard(JNIEnv *env, jobject obj, jstring configFilePath) {
const char *nativeString = (*env)->GetStringUTFChars(env, configFilePath, 0);
int confLength = strlen(nativeString);
(*env)->ReleaseStringUTFChars(env, configFilePath, nativeString);
return confLength;
// const char *nativeConfigFilePath = (*env)->GetStringUTFChars(env, configFilePath, 0);
// Load the WireGuard DLL dynamically
// hInstLibrary = LoadLibrary("tunnel.dll"); // Adjust with the actual DLL name
// if (hInstLibrary) {
// Example: Load the WireGuard function from DLL
// wg_func_t wg_init_func = (wg_func_t) GetProcAddress(hInstLibrary, "WireGuardInitFunction"); // Adjust based on the WireGuard API
// if (wg_init_func) {
// wg_init_func(nativeConfigFilePath);
// (*env)->ReleaseStringUTFChars(env, configFilePath, nativeConfigFilePath);
// return 0; // Success
// } else {
// printf("Failed to get function from WireGuard DLL\n");
// return -2; // Failed to get function
// }
// } else {
// printf("Failed to load WireGuard DLL\n");
// return -1; // Failed to load DLL
// }
}
JNIEXPORT void JNICALL Java_tech_nevets_tvpn_wg_WireGuardJNI_cleanup(JNIEnv *env, jobject obj) {
printf("Silly goose, this isn't implemented yet!\n");
// if (hInstLibrary) {
// FreeLibrary(hInstLibrary);
// }
}