4 Commits

Author	SHA1	Message	Date
Brad Fitzpatrick	c027962893	wgengine: access flow pending problem with lock held ... Missed review feedback from just-submitted d37058af728c. (cherry picked from commit 70eb05fd4730f5bca42f870961c94f57bf88b33b)	2021-02-04 11:19:54 -08:00
Brad Fitzpatrick	acc50d6b67	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> (cherry picked from commit d37058af728c72a4ef29ccb154da4528a9cb9575)	2021-02-04 10:59:17 -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