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Commit 3f738fcd authored by KH Shi's avatar KH Shi
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Pass upstream prefixes to bpf tethering offload 

BPF needs upstream prefixes information to filter spoofing IPv6 source
addresses carried in downstream traffic.

We retrieve prefixes from upstream interface's LinkProperties and pass
it to the BpfCoordinator. Forwarding rules will also be updated when
upstream interface's IPv6 link addresses change.

Test: atest TetheringTests
Bug: 261923493
Change-Id: If8cfc3b191e520ca838654d1b5211ab9e9ec021d
parent 9c01dd49
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