summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--main/openvpn/doc/android.txt11
1 files changed, 10 insertions, 1 deletions
diff --git a/main/openvpn/doc/android.txt b/main/openvpn/doc/android.txt
index 871e3997..cf8b3c79 100644
--- a/main/openvpn/doc/android.txt
+++ b/main/openvpn/doc/android.txt
@@ -2,7 +2,7 @@ This file documents the support in OpenVPN for Android 4.0 and up.
This support is primarily used in the "OpenVPN for Android" app
(http://code.google.com/p/ics-openvpn/). For building see the developer
-README: http://code.google.com/p/ics-openvpn/source/browse/README.txt.
+README: http://code.google.com/p/ics-openvpn/source/browse/doc/README.txt.
Android provides the VPNService API
(http://developer.android.com/reference/android/net/VpnService.html)
@@ -74,3 +74,12 @@ are not specific to Android but are rarely used on other platform.
For example using SIGUSR1 and management-hold to restart, pause,
continue the VPN on network changes or the external key management
--management-external-key option and inline files.
+
+Due to a bug in Android 4.4-4.4.2 there the Android Control will also
+query what action the daemon should take when opening the fd. The GUI
+should compare the last configuration of the tun device with the current
+tun configuration and reply with either
+
+- NOACTION: Keep using the old fd
+- OPEN_AFTER_CLOSE: First close the old fd and then open a new to workaround the bug
+- OPEN_BEFORE_CLOSE: the normal behaviour when the VPN configuration changed