tree 7c93fa630348477de530ac949b867ca25678df25
parent 305787efd1d1e30aafa8000804fe9106c0c4eb17
author Ningyuan Wang <nywang@google.com> 1456272295 -0800
committer Ningyuan Wang <nywang@google.com> 1456786525 -0800

DHCPV4: support persistent lease

This allows the DHCP client to save lease to persistent storage
when it enters bound state, and read lease when it starts.

Bug: 25642025
TEST=compile, unittest, and run it.

Change-Id: I5d30893f23fa8b7472f552e4b107d6d5c421e934