tailscale

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Brad Fitzpatrick 85c3d17b3c wgengine/magicsock: use disco ping src as a candidate endpoint

Consider:

   Hard NAT (A) <---> Hard NAT w/ mapped port (B)

If A sends a packet to B's mapped port, A can disco ping B directly,
with low latency, without DERP.

But B couldn't establish a path back to A and needed to use DERP,
despite already logging about A's endpoint and adding a mapping to it
for other purposes (the wireguard conn.Endpoint lookup also needed
it).

This adds the tracking to discoEndpoint too so it'll be used for
finding a path back.

Fixes tailscale/corp#556

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

2020-08-12 21:33:43 -07:00

filter

wgengine/filter: omit logging for all v6 multicast, remove debug panic :(

2020-08-01 12:40:32 -07:00

magicsock

wgengine/magicsock: use disco ping src as a candidate endpoint

2020-08-12 21:33:43 -07:00

monitor

wgengine/monitor: add, clean up netlink logging on route changes

2020-08-12 13:27:14 -07:00

packet

wgengine/filter: fix IPv4 IGMP spam omission, also omit ff02::16 spam