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Jonathan Nobels 0699f847b9 net/netmon: remove ChangeDelta.Major and start the TODOs ... updates tailscale/corp#33891 We've had some TODO's in netmon for ages related to asking more pointed questions of ChangeDelta. We're also seeing a lot of ChangeDelta's being flagged as "Major" when they are not interesting, triggering rebinds in wgengine that are not needed. This removes the "Major" flag and replaces it with a set of precomputed values that hint at what the ChangeDelta means. The dependencies are cleaned up a bit, notably removing dependency on netmon itself for calculating what is interesting, and what is not. This includes letting individual platforms set a bespoke global "IsInterestingInterface" function. This was only used on Darwin. RebindRequired roughly flows from how "Major" was historically calculated but includes some additional checks for various uninteresting events such as changes in interface addresses that shouldn't trigger a rebind to minimize thrashing. The individual values that we roll into RebindRequired are also exposed so that components consuming netmap.ChangeDelta can ask more targeted questions. Signed-off-by: Jonathan Nobels <jonathan@tailscale.com> wgengine/userspace: skip rebind and restun if all of our interfaces are down updates tailscale/corp#33891 Skip rebind and restun if we have called SetNetworkUp with false. Neither cares about this state and it's just flappy to try to reStun and rebind if there are no usable interfaces available. Signed-off-by: Jonathan Nobels <jonathan@tailscale.com> Add viability flag and fix bug in state		1 week ago
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childproc	all: update copyright and license headers	3 years ago
tailscaledhooks	feature/taildrop, ipn/ipnlocal: remove leftover dup calls to osshare	7 months ago
debug.go	net/netmon: remove ChangeDelta.Major and start the TODOs	1 week ago
debug_forcereflect.go	cmd/tailscaled: add disabled debug file to force reflect for binary size experiments	3 months ago
depaware-min.txt	cmd/cigocacher,go.mod: add cigocacher cmd	1 week ago
depaware-minbox.txt	cmd/cigocacher,go.mod: add cigocacher cmd	1 week ago
depaware.txt	cmd/cigocacher,go.mod: add cigocacher cmd	1 week ago
deps_test.go	cmd/tailscale/cli,feature: add support for identity federation (#17529)	2 months ago
flag.go	cmd/tailscaled: default --encrypt-state to true if TPM is available (#17376)	2 months ago
generate.go	cmd/mkmanifest, cmd/tailscale, cmd/tailscaled: remove Windows arm32 resources from OSS	3 years ago
install_darwin.go	all: update copyright and license headers	3 years ago
install_windows.go	util/backoff: rename logtail/backoff package to util/backoff	2 months ago
manifest_windows_386.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	3 years ago
manifest_windows_amd64.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	3 years ago
manifest_windows_arm64.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	3 years ago
netstack.go	cmd/tailscaled: start implementing ts_omit_netstack	2 months ago
proxy.go	feature, net/tshttpproxy: pull out support for using proxies as a feature	2 months ago
required_version.go	all: switch to and require Go 1.23	1 year ago
sigpipe.go	all: adjust some build tags for plan9	2 years ago
ssh.go	ssh/tailssh: add Plan 9 support for Tailscale SSH	8 months ago
tailscaled.defaults	cmd/tailscaled: rename relaynode reference in defaults file comment	6 years ago
tailscaled.go	cmd/tailscaled,ipn: show a health warning when state store fails to open (#17883)	2 weeks ago
tailscaled.openrc	tstest/integration/vms: use an in-process logcatcher (#2360)	4 years ago
tailscaled.service	cmd/tailscaled: move cleanup to an implicit action during startup	2 years ago
tailscaled_bird.go	all: update copyright and license headers	3 years ago
tailscaled_drive.go	feature/drive: start factoring out Taildrive, add ts_omit_drive build tag	3 months ago
tailscaled_notwindows.go	all: update copyright and license headers	3 years ago
tailscaled_test.go	cmd/tailscaled,ipn: show a health warning when state store fails to open (#17883)	2 weeks ago
tailscaled_windows.go	feature/logtail: pull logtail + netlog out to modular features	2 months ago
webclient.go	derp/derpserver: split off derp.Server out of derp into its own package	2 months ago
windows-manifest.xml	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	3 years ago
with_cli.go	all: update copyright and license headers	3 years ago