tree 9ad848b1432cf6d15fa0bcbfb25a457e11b55c85
parent 31629ba10d2032487b19519f0a0c09b8e51b1f7a
author Janis Danisevskis <jdanis@google.com> 1553534790 -0700
committer Janis Danisevskis <jdanis@google.com> 1556899134 -0700

Fix keystore wifi concurrency issue.

Keystore was conceptually single threaded. Even with the introduction of
Keymaster workers it was always assumed that the service dispatcher
thread was single threaded. The wifi keystore service, however, calls
into the keystore service concurrently.

This patch adds a lock around all keystore service entry points to make
sure all dispatcher executions are serialised despite being called from
both the binder and hwbinder service thread.

Bug: 128810613
Bug: 129145334
Bug: 128774635
Bug: 130045583
Bug: 131622568
Test: Regressions tested with Keystore CTS test suite.
Merged-In: I8c5602d2c2cb1dd9423df713037e99b247cee71f
Change-Id: I8c5602d2c2cb1dd9423df713037e99b247cee71f