tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	01185e436f	types/result, util/lineiter: add package for a result type, use it This adds a new generic result type (motivated by golang/go#70084) to try it out, and uses it in the new lineutil package (replacing the old lineread package), changing that package to return iterators: sometimes over []byte (when the input is all in memory), but sometimes iterators over results of []byte, if errors might happen at runtime. Updates #12912 Updates golang/go#70084 Change-Id: Iacdc1070e661b5fb163907b1e8b07ac7d51d3f83 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 weeks ago
Brad Fitzpatrick	0ff474ff37	all: fix new lint warnings from bumping staticcheck In prep for updating to new staticcheck required for Go 1.23. Updates #12912 Change-Id: If77892a023b79c6fa798f936fc80428fd4ce0673 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	c6af5bbfe8	all: add test for package comments, fix, add comments as needed Updates #cleanup Change-Id: Ic4304e909d2131a95a38b26911f49e7b1729aaef Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 months ago
Jonathan Nobels	45b9aa0d83	net/netmon: remove spammy log statements (#11953 ) Updates tailscale/corp#18960 Tests in corp called us using the wrong logging calls. Removed. This is logged downstream anyway. Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>	7 months ago
Jonathan Nobels	fa1303d632	net/netmon: swap to swift-derived defaultRoute on macos (#11936 ) Updates tailscale/corp#18960 iOS uses Apple's NetworkMonitor to track the default interface and there's no reason we shouldn't also use this on macOS, for the same reasons noted in the comments for why this change was made on iOS. This eliminates the need to load and parse the routing table when querying the defaultRouter() in almost all cases. A slight modification here (on both platforms) to fallback to the default BSD logic in the unhappy-path rather than making assumptions that may not hold. If netmon is eventually parsing AF_ROUTE and able to give a consistently correct answer for the default interface index, we can fall back to that and eliminate the Swift dependency. Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>	7 months ago
Brad Fitzpatrick	b9adbe2002	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon In prep for most of the package funcs in net/interfaces to become methods in a long-lived netmon.Monitor that can cache things. (Many of the funcs are very heavy to call regularly, whereas the long-lived netmon.Monitor can subscribe to things from the OS and remember answers to questions it's asked regularly later) Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: Ie4e8dedb70136af2d611b990b865a822cd1797e5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	6b95219e3a	net/netmon, add: add netmon.State type alias of interfaces.State ... in prep for merging the net/interfaces package into net/netmon. This is a no-op change that updates a bunch of the API signatures ahead of a future change to actually move things (and remove the type alias) Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: I477613388f09389214db0d77ccf24a65bff2199c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	3672f29a4e	net/netns, net/dns/resolver, etc: make netmon required in most places The goal is to move more network state accessors to netmon.Monitor where they can be cheaper/cached. But first (this change and others) we need to make sure the one netmon.Monitor is plumbed everywhere. Some notable bits: * tsdial.NewDialer is added, taking a now-required netmon * because a tsdial.Dialer always has a netmon, anything taking both a Dialer and a NetMon is now redundant; take only the Dialer and get the NetMon from that if/when needed. * netmon.NewStatic is added, primarily for tests Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: I877f9cb87618c4eb037cee098241d18da9c01691 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
kari-ts	c9fd166cc6	net/netmon: when a new network is added, trigger netmon update (#10840 ) Fixes #10107	10 months ago
Andrew Lytvynov	2716250ee8	all: cleanup unused code, part 2 (#10670 ) And enable U1000 check in staticcheck. Updates #cleanup Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	11 months ago
Nick Khyl	c9836b454d	net/netmon: fix goroutine leak in winMon if the monitor is never started When the portable Monitor creates a winMon via newOSMon, we register address and route change callbacks with Windows. Once a callback is hit, it starts a goroutine that attempts to send the event into messagec and returns. The newly started goroutine then blocks until it can send to the channel. However, if the monitor is never started and winMon.Receive is never called, the goroutines remain indefinitely blocked, leading to goroutine leaks and significant memory consumption in the tailscaled service process on Windows. Unlike the tailscaled subprocess, the service process creates but never starts a Monitor. This PR adds a check within the callbacks to confirm the monitor's active status, and exits immediately if the monitor hasn't started. Updates #9864 Signed-off-by: Nick Khyl <nickk@tailscale.com>	11 months ago
Andrew Dunham	ad4c11aca1	net/netmon: log when the gateway/self IP changes This logs that the gateway/self IP address has changed if one of the new values differs. Updates #8992 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I0919424b68ad97fbe1204dd36317ed6f5915411f	1 year ago
Brad Fitzpatrick	1262df0578	net/netmon, net/tsdial: add some link change metrics Updates #9040 Change-Id: I2c87572d79d2118bcf1f0122eccfe712c1bea9d5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	11ece02f52	net/{interfaces,netmon}: remove "interesting", EqualFiltered API This removes a lot of API from net/interfaces (including all the filter types, EqualFiltered, active Tailscale interface func, etc) and moves the "major" change detection to net/netmon which knows more about the world and the previous/new states. Updates #9040 Change-Id: I7fe66a23039c6347ae5458745b709e7ebdcce245 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	e881c1caec	net/netmon: factor out debounce loop, simplify polling impl This simplifies some netmon code in prep for other changes. It breaks up Monitor.debounce into a helper method so locking is easier to read and things unindent, and then it simplifies the polling netmon implementation to remove the redundant stuff that the caller (the Monitor.debounce loop) was already basically doing. Updates #9040 Change-Id: Idcfb45201d00ae64017042a7bdee6ef86ad37a9f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	9089efea06	net/netmon: make ChangeFunc's signature take new ChangeDelta, not bool Updates #9040 Change-Id: Ia43752064a1a6ecefc8802b58d6eaa0b71cf1f84 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	a874f1afd8	all: adjust case of "IPv4" and "IPv6" Updates #docs Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Mihai Parparita	4722f7e322	all: move network monitoring from wgengine/monitor to net/netmon We're using it in more and more places, and it's not really specific to our use of Wireguard (and does more just link/interface monitoring). Also removes the separate interface we had for it in sockstats -- it's a small enough package (we already pull in all of its dependencies via other paths) that it's not worth the extra complexity. Updates #7621 Updates #7850 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago

18 Commits (f593d3c5c0eee55fdf988085d27aa991dbfd5fd6)