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-rw-r--r--app/tools/libwg-go/jni.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/app/tools/libwg-go/jni.c b/app/tools/libwg-go/jni.c
new file mode 100644
index 0000000..f6229a4
--- /dev/null
+++ b/app/tools/libwg-go/jni.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright © 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <jni.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct go_string { const char *str; long n; };
+extern int wgTurnOn(struct go_string ifname, int tun_fd, struct go_string settings);
+extern void wgTurnOff(int handle);
+extern int wgGetSocketV4(int handle);
+extern int wgGetSocketV6(int handle);
+extern char *wgVersion();
+
+JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOn(JNIEnv *env, jclass c, jstring ifname, jint tun_fd, jstring settings)
+{
+ const char *ifname_str = (*env)->GetStringUTFChars(env, ifname, 0);
+ size_t ifname_len = (*env)->GetStringUTFLength(env, ifname);
+ const char *settings_str = (*env)->GetStringUTFChars(env, settings, 0);
+ size_t settings_len = (*env)->GetStringUTFLength(env, settings);
+ int ret = wgTurnOn((struct go_string){
+ .str = ifname_str,
+ .n = ifname_len
+ }, tun_fd, (struct go_string){
+ .str = settings_str,
+ .n = settings_len
+ });
+ (*env)->ReleaseStringUTFChars(env, ifname, ifname_str);
+ (*env)->ReleaseStringUTFChars(env, settings, settings_str);
+ return ret;
+}
+
+JNIEXPORT void JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOff(JNIEnv *env, jclass c, jint handle)
+{
+ wgTurnOff(handle);
+}
+
+JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgGetSocketV4(JNIEnv *env, jclass c, jint handle)
+{
+ return wgGetSocketV4(handle);
+}
+
+JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgGetSocketV6(JNIEnv *env, jclass c, jint handle)
+{
+ return wgGetSocketV6(handle);
+}
+
+JNIEXPORT jstring JNICALL Java_com_wireguard_android_backend_GoBackend_wgVersion(JNIEnv *env, jclass c)
+{
+ jstring ret;
+ char *version = wgVersion();
+ if (!version)
+ return NULL;
+ ret = (*env)->NewStringUTF(env, version);
+ free(version);
+ return ret;
+}