You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Mihai Parparita fa932fefe7 net/interfaces: redo how we get the default interface on macOS and iOS ... With #6566 we added an external mechanism for getting the default interface, and used it on macOS and iOS (see tailscale/corp#8201). The goal was to be able to get the default physical interface even when using an exit node (in which case the routing table would say that the Tailscale utun* interface is the default). However, the external mechanism turns out to be unreliable in some cases, e.g. when multiple cellular interfaces are present/toggled (I have occasionally gotten my phone into a state where it reports the pdp_ip1 interface as the default, even though it can't actually route traffic). It was observed that `ifconfig -v` on macOS reports an "effective interface" for the Tailscale utn* interface, which seems promising. By examining the ifconfig source code, it turns out that this is done via a SIOCGIFDELEGATE ioctl syscall. Though this is a private API, it appears to have been around for a long time (e.g. it's in the 10.13 xnu release at https://opensource.apple.com/source/xnu/xnu-4570.41.2/bsd/net/if_types.h.auto.html) and thus is unlikely to go away. We can thus use this ioctl if the routing table says that a utun* interface is the default, and go back to the simpler mechanism that we had before #6566. Updates #7184 Updates #7188 Signed-off-by: Mihai Parparita <mihai@tailscale.com>		2 years ago
..
ipnauth	all: update copyright and license headers	2 years ago
ipnlocal	net/interfaces: redo how we get the default interface on macOS and iOS	2 years ago
ipnserver	all: update copyright and license headers	2 years ago
ipnstate	ipn/ipnstate: update field docs on PeerStatus.	2 years ago
localapi	ipn/localapi: print envknobs on bugreport	2 years ago
policy	all: update copyright and license headers	2 years ago
store	all: use Go 1.20's bytes.Clone	2 years ago
backend.go	all: update copyright and license headers	2 years ago
doc.go	all: update copyright and license headers	2 years ago
fake_test.go	all: update copyright and license headers	2 years ago
ipn_clone.go	all: update copyright and license headers	2 years ago
ipn_view.go	all: update copyright and license headers	2 years ago
prefs.go	all: update copyright and license headers	2 years ago
prefs_test.go	all: update copyright and license headers	2 years ago
serve.go	all: update copyright and license headers	2 years ago
store.go	ipn: remove unused NLKeyStateKey constant	2 years ago