tree 7aec0f5d987a1f13bbcf7dca83f6cca459b65f2c
parent d04a29f8721e70ac1ae4e1aa82d18baa53bd8f97
author Roshan Pius <rpius@google.com> 1556208951 -0700
committer Roshan Pius <rpius@google.com> 1556293111 -0700

NativeUtil: Perform range checks on ssid bytes size

NativeUtil.encodeSsid/decodeSsid should perform range checks because the
output/input is coming from binder/hwbinder interfaces which assume
the ssid is not malformed (i.e within spec mandated size range).

Most of the callers of these methods already handle
IllegalArgumentException (including the hidden network list built in
WifiCondControl). This should fix the reported issue of a hidden SSID
added with size > 32 causing crash in wificond.

Bug: 130843221
Test: Device boots up & connects to wifi networks.
Test: Regression tests.
Test: atest com.android.server.wifi
Change-Id: I12d8f3b548a65005932bd8bc1c74de37769b0ee8