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tailscale/wgengine/netstack
Brad Fitzpatrick 95a9adbb97 wgengine/netstack: implement UDP relaying to advertised subnets
TCP was done in 662fbd4a09.

This does the same for UDP.

Tested by hand. Integration tests will have to come later. I'd wanted
to do it in this commit, but the SOCKS5 server needed for interop
testing between two userspace nodes doesn't yet support UDP and I
didn't want to invent some whole new userspace packet injection
interface at this point, as SOCKS seems like a better route, but
that's its own bug.

Fixes #2302

RELNOTE=netstack mode can now UDP relay to subnets

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
..
netstack.go wgengine/netstack: implement UDP relaying to advertised subnets 3 years ago
netstack_test.go wgengine/netstack: make SOCKS5 resolve names to IPv6 if self node when no IPv4 3 years ago
subnet_router_wrapper.go cmd/tailscaled, wgengine{,/netstack}: add netstack hybrid mode, add to Windows 3 years ago