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5 Commits

Author SHA1 Message Date
Brad Fitzpatrick d76334d2f0 ipn: split LocalBackend off into new ipn/ipnlocal package 
And move a couple other types down into leafier packages.

Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc.

Fixes #1181

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-02-04 14:04:23 -08:00
Brad Fitzpatrick 70eb05fd47 wgengine: access flow pending problem with lock held 
Missed review feedback from just-submitted d37058af72.
 2021-02-04 11:18:32 -08:00
Brad Fitzpatrick d37058af72 net/packet: add some more TSMP packet reject reasons and MaybeBroken bit 
Unused for now, but I want to backport this commit to 1.4 so 1.6 can
start sending these and then at least 1.4 logs will stringify nicely.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-02-04 10:59:07 -08:00
Brad Fitzpatrick b560386c1a net/packet, wgengine, tstun: add inter-node TSMP protocol for connect errors 
This adds a new IP Protocol type, TSMP on protocol number 99 for
sending inter-tailscale messages over WireGuard, currently just for
why a peer rejects TCP SYNs (ACL rejection, shields up, and in the
future: nothing listening, something listening on that port but wrong
interface, etc)

Updates #1094
Updates tailscale/corp#1185

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-01-15 14:03:57 -08:00
Brad Fitzpatrick 85e54af0d7 wgengine: on TCP connect fail/timeout, log some clues about why it failed 
So users can see why things aren't working.

A start. More diagnostics coming.

Updates #1094
 2021-01-11 22:09:09 -08:00