tree 9ed1af1c2c391dabe8a239803f1d168a9202ce05
parent 8e99d183345391cddec70e18d3c41cf21f9f67cb
author Chia-chi Yeh <chiachi@android.com> 1313446780 -0700
committer Chia-chi Yeh <chiachi@android.com> 1313514513 -0700

VPN: reset legacy VPN when resetting IPv4 addresses.

Currently legacy VPN only works on IPv4, and it should always
turn down when the addresses are changed. It assumed that the
interface will be brought down and up, so the event can be
detected via interfaceStatusChanged(). However, the assumption
was incorrect and the event is actually driver-dependent. To
fix this issue, ConnectivityService now tells VPN that the
interface is down when resetting IPv4 addresses.

Change-Id: I76d15e56552d86635c5b274ca980be5da905a6fb