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tailscale/wgengine
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
2 years ago
..
bench wgengine: remove SetDERPMap method from Engine interface 2 years ago
capture various: add golangci-lint, fix issues (#7905) 3 years ago
filter tailcfg: add RawMessage 2 years ago
magicsock wgengine/magicsock, controlclient, net/dns: reduce some logspam 2 years ago
netlog wgengine/netlog: fix nil pointer dereference in logtail (#8598) 2 years ago
netstack net/dns: retry forwarder requests over TCP 2 years ago
router Revert "wgengine,net,ipn,disco: split up and define different types of MTU" 2 years ago
wgcfg all: declare & plumb IPv6 masquerade address for peer 2 years ago
wgint all: update copyright and license headers 3 years ago
wglog all: update copyright and license headers 3 years ago
winnet all: update copyright and license headers 3 years ago
mem_ios.go all: update copyright and license headers 3 years ago
pendopen.go types/netmap, all: use read-only tailcfg.NodeView in NetworkMap 2 years ago
userspace.go net/dns: retry forwarder requests over TCP 2 years ago
userspace_ext_test.go tsd: add package with System type to unify subsystem init, discovery 3 years ago
userspace_test.go control,tailcfg,wgengine/magicsock: add nodeAttr to enable/disable peer MTU 2 years ago
watchdog.go wgengine, proxymap: split out port mapping from Engine to new type 2 years ago
watchdog_js.go all: update copyright and license headers 3 years ago
watchdog_test.go all: update copyright and license headers 3 years ago
wgengine.go wgengine, proxymap: split out port mapping from Engine to new type 2 years ago