Jonathan Nobels 6006bc92b5

net/{netns, netmon}: use LastKnownDefaultInterface if set and check for utun (#16873) ...

fixes tailscale/corp#31299

Fixes two issues:
getInterfaceIndex would occasionally race with netmon's state, returning
the cached default interface index after it had be changed by NWNetworkMonitor.
This had the potential to cause connections to bind to the prior default.  The fix
here is to preferentially use the interface index provided by NWNetworkMonitor
preferentially.

When no interfaces are available, macOS will set the tunnel as the default
interface when an exit node is enabled, potentially causing getInterfaceIndex
to return utun's index.  We now guard against this when taking the
defaultIdx path.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>

2025-08-15 13:04:23 -07:00

..

defaultroute_bsd.go

net/netmon: swap to swift-derived defaultRoute on macos (#11936)

2024-05-01 09:20:09 -04:00

defaultroute_darwin.go

net/{netns, netmon}: use LastKnownDefaultInterface if set and check for utun (#16873)

2025-08-15 13:04:23 -07:00

interfaces_android.go

types/result, util/lineiter: add package for a result type, use it

2024-11-05 10:27:52 -08:00

interfaces_bsd.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_darwin_test.go

net/{netns, netmon}: use LastKnownDefaultInterface if set and check for utun (#16873)

2025-08-15 13:04:23 -07:00

interfaces_darwin.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_default_route_test.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_defaultrouteif_todo.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_freebsd.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_linux_test.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_linux.go

types/result, util/lineiter: add package for a result type, use it

2024-11-05 10:27:52 -08:00

interfaces_test.go

net/netmon: use Monitor's tsIfName if set by SetTailscaleInterfaceName

2025-03-24 13:34:02 -07:00

interfaces_windows_test.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

interfaces_windows.go

net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon

2024-04-28 07:34:52 -07:00

loghelper_test.go

net/netmon: publish events to event bus

2025-04-16 10:10:45 -07:00

loghelper.go

net/netmon, wgengine/magicsock: be quieter with portmapper logs

2025-03-12 17:45:26 -04:00

netmon_darwin_test.go

all: move network monitoring from wgengine/monitor to net/netmon

2023-04-20 10:15:59 -07:00

netmon_darwin.go

net/netmon: publish events to event bus

2025-04-16 10:10:45 -07:00

netmon_freebsd.go

net/netmon: publish events to event bus

2025-04-16 10:10:45 -07:00

netmon_linux_test.go

types/result, util/lineiter: add package for a result type, use it

2024-11-05 10:27:52 -08:00

netmon_linux.go

wgengine/router: rely on events for deleted IP rules (#16744)

2025-08-05 08:31:51 -04:00

netmon_polling.go

net/netmon: publish events to event bus

2025-04-16 10:10:45 -07:00

netmon_test.go

net/netmon: add tests for the events over the eventbus (#16382)

2025-06-25 14:44:01 -04:00

netmon_windows.go

net/netmon: publish events to event bus

2025-04-16 10:10:45 -07:00

netmon.go

wgengine/router: rely on events for deleted IP rules (#16744)

2025-08-05 08:31:51 -04:00

polling.go

net/netmon: factor out debounce loop, simplify polling impl

2023-08-23 19:42:09 -07:00

state.go

net/netmon: use Monitor's tsIfName if set by SetTailscaleInterfaceName

2025-03-24 13:34:02 -07:00