tailscale/wgengine/netstack
Andrew Dunham 530aaa52f1 net/dns: retry forwarder requests over TCP
We weren't correctly retrying truncated requests to an upstream DNS
server with TCP. Instead, we'd return a truncated request to the user,
even if the user was querying us over TCP and thus able to handle a
large response.

Also, add an envknob and controlknob to allow users/us to disable this
behaviour if it turns out to be buggy ( DNS ).

Updates #9264

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ifb04b563839a9614c0ba03e9c564e8924c1a2bfd
2023-09-25 16:42:07 -04:00
..
netstack_linux.go all: update copyright and license headers 2023-01-27 15:36:29 -08:00
netstack_test.go wgengine, proxymap: split out port mapping from Engine to new type 2023-09-17 20:06:43 +01:00
netstack.go net/dns: retry forwarder requests over TCP 2023-09-25 16:42:07 -04:00
subnet_router_wrapper.go tsd: add package with System type to unify subsystem init, discovery 2023-05-04 14:21:59 -07:00