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tailscale/net/dns/resolver
Mihai Parparita 7330aa593e all: avoid repeated default interface lookups
On some platforms (notably macOS and iOS) we look up the default
interface to bind outgoing connections to. This is both duplicated
work and results in logspam when the default interface is not available
(i.e. when a phone has no connectivity, we log an error and thus cause
more things that we will try to upload and fail).

Fixed by passing around a netmon.Monitor to more places, so that we can
use its cached interface state.

Fixes #7850
Updates #7621

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
..
debug.go all: update copyright and license headers 2 years ago
doh_test.go net/dns/resolver: remove maxDoHInFlight 2 years ago
forwarder.go all: avoid repeated default interface lookups 2 years ago
forwarder_test.go net/dns/resolver: remove maxDoHInFlight 2 years ago
macios_ext.go all: avoid repeated default interface lookups 2 years ago
tsdns.go all: move network monitoring from wgengine/monitor to net/netmon 2 years ago
tsdns_server_test.go all: update copyright and license headers 2 years ago
tsdns_test.go all: avoid repeated default interface lookups 2 years ago