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Jonathan Nobels 2b7f8b6be7 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		4 days ago
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auditlog	syncs: add Mutex/RWMutex alias/wrappers for future mutex debugging	3 weeks ago
conffile	cmd/tailscale/cli,ipn/conffile: add declarative config mode for Services (#17435)	2 months ago
desktop	go.mod: bump golang.org/x/crypto (#17907)	3 weeks ago
ipnauth	all: use buildfeature constants in a few more places	2 months ago
ipnext	ipn/ipnlocal: remove all the weird locking (LockedOnEntry, UnlockEarly, etc)	4 weeks ago
ipnlocal	net/netmon: remove ChangeDelta.Major and start the TODOs	4 days ago
ipnserver	feature/featuretags, all: add build features, use existing ones in more places	2 months ago
ipnstate	cmd/tailscale, ipn/ipnstate, wgengine/magicsock: update ping output for peer relay (#16515)	5 months ago
lapitest	various: allow tailscaled shutdown via LocalAPI	3 months ago
localapi	cmd/tailscaled,ipn: show a health warning when state store fails to open (#17883)	3 weeks ago
policy	ipn,tailconfig: clean up unreleased and removed app connector service	2 years ago
store	ipn/store, feature/condregister: permit callers to empty import optonal ipn stores	2 months ago
backend.go	types/netmap: remove PrivateKey from NetworkMap	3 weeks ago
backend_test.go	ipn: fix the string representation of an empty ipn.Notify	3 months ago
conf.go	ipn: ensure that conffile is source of truth for advertised services. (#15361)	9 months ago
doc.go	ipn: generate LoginProfileView and use it instead of *LoginProfile where appropriate	10 months ago
ipn_clone.go	cmd/tailscale/cli,ipn,all: make peer relay server port a *uint16	2 weeks ago
ipn_test.go	all: do not depend on the testing package	2 years ago
ipn_view.go	cmd/tailscale/cli,ipn,all: make peer relay server port a *uint16	2 weeks ago
prefs.go	cmd/tailscale/cli,ipn,all: make peer relay server port a *uint16	2 weeks ago
prefs_test.go	cmd/tailscale/cli,ipn,all: make peer relay server port a *uint16	2 weeks ago
serve.go	cmd/tailscale,ipn: add Unix socket support for serve	5 days ago
serve_expand_test.go	cmd/tailscale,ipn: add Unix socket support for serve	5 days ago
serve_test.go	ipn/serve: validate service paths in HasPathHandler	2 weeks ago
store.go	cmd/tailscaled,ipn: show a health warning when state store fails to open (#17883)	3 weeks ago
store_test.go	ipn/store: automatically migrate between plaintext and encrypted state (#16318)	6 months ago