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tailscale/net/interfaces
Mihai Parparita a8231b18cc net/interfaces, net/netns: add node attributes to control default interface getting and binding
With #6566 we started to more aggressively bind to the default interface
on Darwin. We are seeing some reports of the wrong cellular interface
being chosen on iOS. To help with the investigation, this adds to knobs
to control the behavior changes:
- CapabilityDebugDisableAlternateDefaultRouteInterface disables the
  alternate function that we use to get the default interface on macOS
  and iOS (implemented in tailscale/corp#8201). We still log what it
  would have returned so we can see if it gets things wrong.
- CapabilityDebugDisableBindConnToInterface is a bigger hammer that
  disables binding of connections to the default interface altogether.

Updates #7184
Updates #7188

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
(cherry picked from commit 62f4df3257)
3 years ago
..
interfaces.go net/interfaces, net/netns: add node attributes to control default interface getting and binding 3 years ago
interfaces_bsd.go net/interfaces, net/netns: add node attributes to control default interface getting and binding 3 years ago
interfaces_darwin.go net/interfaces: deduplicate route table parsing on Darwin and FreeBSD 3 years ago
interfaces_darwin_test.go net/interfaces: improve default route detection 3 years ago
interfaces_default_route_test.go all: remove old +build tags 3 years ago
interfaces_defaultrouteif_todo.go all: remove old +build tags 3 years ago
interfaces_freebsd.go all: remove old +build tags 3 years ago
interfaces_linux.go syncs, all: move to using Go's new atomic types instead of ours 4 years ago
interfaces_linux_test.go refactor: move from io/ioutil to io and os packages 3 years ago
interfaces_test.go all: convert more code to use net/netip directly 4 years ago
interfaces_windows.go go.mod: bump wireguard/windows, which moves to using net/netip 3 years ago
interfaces_windows_test.go net/interfaces: quiet PAC detection logging in no-PAC case, add benchmark 5 years ago