Backends: print versions somewhere in log

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

2 files changed, 4 insertions, 2 deletions

diff --git a/app/src/main/java/com/wireguard/android/backend/GoBackend.java b/app/src/main/java/com/wireguard/android/backend/GoBackend.java
index a6582cd6..21df018e 100644
--- a/app/src/main/java/com/wireguard/android/backend/GoBackend.java
+++ b/app/src/main/java/com/wireguard/android/backend/GoBackend.java
@@ -187,7 +187,7 @@ public final class GoBackend implements Backend {
             try (final ParcelFileDescriptor tun = builder.establish()) {
                 if (tun == null)
                     throw new Exception("Unable to create tun device");
-
+                Log.d(TAG, "Go backend v" + wgVersion());
                 currentTunnelHandle = wgTurnOn(tunnel.getName(), tun.detachFd(), goConfig);
             }
             if (currentTunnelHandle < 0)
diff --git a/app/src/main/java/com/wireguard/android/backend/WgQuickBackend.java b/app/src/main/java/com/wireguard/android/backend/WgQuickBackend.java
index 6de40431..49b562a0 100644
--- a/app/src/main/java/com/wireguard/android/backend/WgQuickBackend.java
+++ b/app/src/main/java/com/wireguard/android/backend/WgQuickBackend.java
@@ -109,8 +109,10 @@ public final class WgQuickBackend implements Backend {
         try (final FileOutputStream stream = new FileOutputStream(tempFile, false)) {
             stream.write(config.toString().getBytes(StandardCharsets.UTF_8));
         }
-        final String command = String.format("wg-quick %s '%s'",
+        String command = String.format("wg-quick %s '%s'",
                 state.toString().toLowerCase(), tempFile.getAbsolutePath());
+        if (state == State.UP)
+            command = "cat /sys/module/wireguard/version && " + command;
         final int result = rootShell.run(null, command);
         // noinspection ResultOfMethodCallIgnored
         tempFile.delete();