tree 508208adc625c986f150aff0080ece7b56e3c7df
parent 20e82ec4c88b2c663fd19e7524cb50ca9a91d0a9
author evitayan <evitayan@google.com> 1575597213 -0800
committer evitayan <evitayan@google.com> 1576539605 -0800

Child Session API changes in configuring and retrieving internal address

This commit:
- creates separate methods for requesting IPv4 and IPv6 internal
  addresses
- disallows user to request internal subnet
- disallows user to request specific inter DNS and DHCP server
- uses IpPrefix to represent subnet in ChildSessionConfiguration
- adds null value check in building ChildSessionParams
- updates doc for TS negotiation
- removes or modifies unit tests corresponding to changed APIs

Bug: 145453636
Bug: 145454043
Bug: 145451419
Bug: 145454818
Bug: 130756765
Test: atest FrameworksIkeTests(all passed)
Change-Id: Ie36168262802816f3350ba65166ecbc0e4a7b2b7