tailscale

Commit Graph

Author	SHA1	Message	Date
Andrea Gottardo	90be06bd5b	health: introduce captive-portal-detected Warnable (#12707 ) Updates tailscale/tailscale#1634 This PR introduces a new `captive-portal-detected` Warnable which is set to an unhealthy state whenever a captive portal is detected on the local network, preventing Tailscale from connecting. ipn/ipnlocal: fix captive portal loop shutdown Change-Id: I7cafdbce68463a16260091bcec1741501a070c95 net/captivedetection: fix mutex misuse ipn/ipnlocal: ensure that we don't fail to start the timer Change-Id: I3e43fb19264d793e8707c5031c0898e48e3e7465 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	4 months ago
Brad Fitzpatrick	808b4139ee	wgengine/magicsock: use wireguard-go/conn.PeerAwareEndpoint If we get an non-disco presumably-wireguard-encrypted UDP packet from an IP:port we don't recognize, rather than drop the packet, give it to WireGuard anyway and let WireGuard try to figure out who it's from and tell us. This uses the new hook added in https://github.com/tailscale/wireguard-go/pull/27 Updates tailscale/corp#20732 Change-Id: I5c61a40143810592f9efac6c12808a87f924ecf2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 months ago
Brad Fitzpatrick	d2fef01206	control/controlknobs,tailcfg,wgengine/magicsock: remove DRPO shutoff switch The DERP Return Path Optimization (DRPO) is over four years old (and on by default for over two) and we haven't had problems, so time to remove the emergency shutoff code (controlknob) which we've never used. The controlknobs are only meant for new features, to mitigate risk. But we don't want to keep them forever, as they kinda pollute the code. Updates #150 Change-Id: If021bc8fd1b51006d8bddd1ffab639bb1abb0ad1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 months ago
Anton Tolchanov	4651827f20	tka: test SigCredential signatures and netmap filtering This change moves handling of wrapped auth keys to the `tka` package and adds a test covering auth key originating signatures (SigCredential) in netmap. Updates tailscale/corp#19764 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	5 months ago
Brad Fitzpatrick	fd3efd9bad	control/controlclient: add more Screen Time blocking detection Updates #9658 Updates #12545 Change-Id: Iec1dad354a75f145567b4055d77b1c1db27c89e2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Co-authored-by: Andrea Gottardo <andrea@gottardo.me>	5 months ago
Andrew Dunham	24976b5bfd	cmd/tailscale/cli: actually perform Noise request in 'debug ts2021' This actually performs a Noise request in the 'debug ts2021' command, instead of just exiting once we've dialed a connection. This can help debug certain forms of captive portals and deep packet inspection that will allow a connection, but will RST the connection when trying to send data on the post-upgraded TCP connection. Updates #1634 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I1e46ca9c9a0751c55f16373a6a76cdc24fec1f18	5 months ago
Andrew Dunham	732605f961	control/controlclient: move noiseConn to internal package So that it can be later used in the 'tailscale debug ts2021' function in the CLI, to aid in debugging captive portals/WAFs/etc. Updates #1634 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: Iec9423f5e7570f2c2c8218d27fc0902137e73909	5 months ago
Brad Fitzpatrick	0004827681	control/controlhttp: add health warning for macOS filtering blocking Tailscale (#12546 ) Updates #9658 Updates #12545 Change-Id: I6612b9b65eb193a1a651e219b5198c7c20ed94e1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Co-authored-by: Andrea Gottardo <andrea@tailscale.com>	5 months ago
Nick Khyl	c32efd9118	various: create a catch-all NRPT rule when "Override local DNS" is enabled on Windows Without this rule, Windows 8.1 and newer devices issue parallel DNS requests to DNS servers associated with all network adapters, even when "Override local DNS" is enabled and/or a Mullvad exit node is being used, resulting in DNS leaks. This also adds "disable-local-dns-override-via-nrpt" nodeAttr that can be used to disable the new behavior if needed. Fixes tailscale/corp#20718 Signed-off-by: Nick Khyl <nickk@tailscale.com>	5 months ago
Andrea Gottardo	a8ee83e2c5	health: begin work to use structured health warnings instead of strings, pipe changes into ipn.Notify (#12406 ) Updates tailscale/tailscale#4136 This PR is the first round of work to move from encoding health warnings as strings and use structured data instead. The current health package revolves around the idea of Subsystems. Each subsystem can have (or not have) a Go error associated with it. The overall health of the backend is given by the concatenation of all these errors. This PR polishes the concept of Warnable introduced by @bradfitz a few weeks ago. Each Warnable is a component of the backend (for instance, things like 'dns' or 'magicsock' are Warnables). Each Warnable has a unique identifying code. A Warnable is an entity we can warn the user about, by setting (or unsetting) a WarningState for it. Warnables have: - an identifying Code, so that the GUI can track them as their WarningStates come and go - a Title, which the GUIs can use to tell the user what component of the backend is broken - a Text, which is a function that is called with a set of Args to generate a more detailed error message to explain the unhappy state Additionally, this PR also begins to send Warnables and their WarningStates through LocalAPI to the clients, using ipn.Notify messages. An ipn.Notify is only issued when a warning is added or removed from the Tracker. In a next PR, we'll get rid of subsystems entirely, and we'll start using structured warnings for all errors affecting the backend functionality. Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	5 months ago
Andrea Gottardo	b65221999c	tailcfg,net/dns: add controlknob to disable battery split DNS on iOS (#12346 ) Updates corp#15802. Adds the ability for control to disable the recently added change that uses split DNS in more cases on iOS. This will allow us to disable the feature if it leads to regression in production. We plan to remove this knob once we've verified that the feature works properly. Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	5 months ago
Anton Tolchanov	01847e0123	ipn/ipnlocal: discard node keys that have been rotated out A non-signing node can be allowed to re-sign its new node keys following key renewal/rotation (e.g. via `tailscale up --force-reauth`). To be able to do this, node's TLK is written into WrappingPubkey field of the initial SigDirect signature, signed by a signing node. The intended use of this field implies that, for each WrappingPubkey, we typically expect to have at most one active node with a signature tracing back to that key. Multiple valid signatures referring to the same WrappingPubkey can occur if a client's state has been cloned, but it's something we explicitly discourage and don't support: https://tailscale.com/s/clone This change propagates rotation details (wrapping public key, a list of previous node keys that have been rotated out) to netmap processing, and adds tracking of obsolete node keys that, when found, will get filtered out. Updates tailscale/corp#19764 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	5 months ago
Brad Fitzpatrick	1384c24e41	control/controlclient: delete unused Client.Login Oauth2Token field Updates #12172 (then need to update other repos) Change-Id: I439f65e0119b09e00da2ef5c7a4f002f93558578 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Brad Fitzpatrick	e968b0ecd7	cmd/tailscale,controlclient,ipnlocal: fix 'up', deflake tests more The CLI's "up" is kinda chaotic and LocalBackend.Start is kinda chaotic and they both need to be redone/deleted (respectively), but this fixes some buggy behavior meanwhile. We were previously calling StartLoginInteractive (to start the controlclient's RegisterRequest) redundantly in some cases, causing test flakes depending on timing and up's weird state machine. We only need to call StartLoginInteractive in the client if Start itself doesn't. But Start doesn't tell us that. So cheat a bit and a put the information about whether there's a current NodeKey in the ipn.Status. It used to be accessible over LocalAPI via GetPrefs as a private key but we removed that for security. But a bool is fine. So then only call StartLoginInteractive if that bool is false and don't do it in the WatchIPNBus loop. Fixes #12028 Updates #12042 Change-Id: I0923c3f704a9d6afd825a858eb9a63ca7c1df294 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Maisem Ali	32bc596062	ipn/ipnlocal: acquire b.mu once in Start We used to Lock, Unlock, Lock, Unlock quite a few times in Start resulting in all sorts of weird race conditions. Simplify it all and only Lock/Unlock once. Updates #11649 Signed-off-by: Maisem Ali <maisem@tailscale.com>	6 months ago
Brad Fitzpatrick	80df8ffb85	control/controlclient: early return and outdent some code I found this too hard to read before. This is pulled out of #12033 as it's unrelated cleanup in retrospect. Updates #12028 Change-Id: I727c47e573217e3d1973c5b66a76748139cf79ee Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Maisem Ali	af97e7a793	tailcfg,all: add/plumb Node.IsJailed This adds a new bool that can be sent down from control to do jailing on the client side. Previously this would only be done from control by modifying the packet filter we sent down to clients. This would result in a lot of additional work/CPU on control, we could instead just do this on the client. This has always been a TODO which we keep putting off, might as well do it now. Updates tailscale/corp#19623 Signed-off-by: Maisem Ali <maisem@tailscale.com>	6 months ago
Nick Khyl	f62e678df8	net/dns/resolver, control/controlknobs, tailcfg: use UserDial instead of SystemDial to dial DNS servers Now that tsdial.Dialer.UserDial has been updated to honor the configured routes and dial external network addresses without going through Tailscale, while also being able to dial a node/subnet router on the tailnet, we can start using UserDial to forward DNS requests. This is primarily needed for DNS over TCP when forwarding requests to internal DNS servers, but we also update getKnownDoHClientForProvider to use it. Updates tailscale/corp#18725 Signed-off-by: Nick Khyl <nickk@tailscale.com>	6 months ago
Brad Fitzpatrick	e26f76a1c4	tstest/integration: add more debugging, logs to catch flaky test Updates #11962 Change-Id: I1ab0db69bdf8d1d535aa2cef434c586311f0fe18 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Fran Bull	1bd1b387b2	appc: add flag shouldStoreRoutes and controlknob for it When an app connector is reconfigured and domains to route are removed, we would like to no longer advertise routes that were discovered for those domains. In order to do this we plan to store which routes were discovered for which domains. Add a controlknob so that we can enable/disable the new behavior. Updates #11008 Signed-off-by: Fran Bull <fran@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
Brad Fitzpatrick	745931415c	health, all: remove health.Global, finish plumbing health.Tracker Updates #11874 Updates #4136 Change-Id: I414470f71d90be9889d44c3afd53956d9f26cd61 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	a4a282cd49	control/controlclient: plumb health.Tracker Updates #11874 Updates #4136 Change-Id: Ia941153bd83523f0c8b56852010f5231d774d91a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	723c775dbb	tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing This adds a health.Tracker to tsd.System, accessible via a new tsd.System.HealthTracker method. In the future, that new method will return a tsd.System-specific HealthTracker, so multiple tsnet.Servers in the same process are isolated. For now, though, it just always returns the temporary health.Global value. That permits incremental plumbing over a number of changes. When the second to last health.Global reference is gone, then the tsd.System.HealthTracker implementation can return a private Tracker. The primary plumbing this does is adding it to LocalBackend and its dozen and change health calls. A few misc other callers are also plumbed. Subsequent changes will flesh out other parts of the tree (magicsock, controlclient, etc). Updates #11874 Updates #4136 Change-Id: Id51e73cfc8a39110425b6dc19d18b3975eac75ce Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	ebc552d2e0	health: add Tracker type, in prep for removing global variables This moves most of the health package global variables to a new `health.Tracker` type. But then rather than plumbing the Tracker in tsd.System everywhere, this only goes halfway and makes one new global Tracker (`health.Global`) that all the existing callers now use. A future change will eliminate that global. Updates #11874 Updates #4136 Change-Id: I6ee27e0b2e35f68cb38fecdb3b2dc4c3f2e09d68 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	5100bdeba7	types/persist: remove unused field Persist.Provider It was only obviously unused after the previous change, `c39cde79d`. Updates #19334 Change-Id: I9896d5fa692cb4346c070b4a339d0d12340c18f7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	c39cde79d2	tailcfg: remove some unused fields from RegisterResponseAuth Fixes #19334 Change-Id: Id6463f28af23078a7bc25b9280c99d4491bd9651 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	05bfa022f2	tailcfg: pointerify RegisterRequest.Auth, omitemptify RegisterResponseAuth We were storing server-side lots of: "Auth":{"Provider":"","LoginName":"","Oauth2Token":null,"AuthKey":""}, That was about 7% of our total storage of pending RegisterRequest bodies. Updates tailscale/corp#19327 Change-Id: Ib73842759a2b303ff5fe4c052a76baea0d68ae7d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	7c1d6e35a5	all: use Go 1.22 range-over-int Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	2409661a0d	control/controlclient: delete old naclbox code, require ts2021 Noise Updates #11585 Updates tailscale/corp#18882 Change-Id: I90e2e4a211c58d429e2b128604614dde18986442 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
James Tucker	9401b09028	control/controlclient: move client watchdog to cover initial request The initial control client request can get stuck in the event that a connection is established but then lost part way through, without any ICMP or RST. Ensure that the control client will be restarted by timing out that initial request as well. Fixes #11542 Signed-off-by: James Tucker <james@tailscale.com>	8 months ago
Brad Fitzpatrick	7b34154df2	all: deprecate Node.Capabilities (more), remove PeerChange.Capabilities [capver 89] First we had Capabilities []string. Then https://tailscale.com/blog/acl-grants (#4217) brought CapMap, a superset of Capabilities. Except we never really finished the transition inside the codebase to go all-in on CapMap. This does so. Notably, this coverts Capabilities on the wire early to CapMap internally so the code can only deal in CapMap, even against an old control server. In the process, this removes PeerChange.Capabilities support, which no known control plane sent anyway. They can and should use PeerChange.CapMap instead. Updates #11508 Updates #4217 Change-Id: I872074e226b873f9a578d9603897b831d50b25d9 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	b104688e04	ipn/ipnlocal, types/netmap: replace hasCapability with set lookup on NetworkMap When node attributes were super rare, the O(n) slice scans looking for node attributes was more acceptable. But now more code and more users are using increasingly more node attributes. Time to make it a map. Noticed while working on tailscale/corp#17879 Updates #cleanup Change-Id: Ic17c80341f418421002fbceb47490729048756d2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	f45594d2c9	control/controlclient: free memory on iOS before full netmap work Updates tailscale/corp#18514 Change-Id: I8d0330334b030ed8692b25549a0ee887ac6d7188 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	8444937c89	control/controlclient: fix panic regression from earlier load balancer hint header In the recent `20e9f3369` we made HealthChangeRequest machine requests include a NodeKey, as it was the oddball machine request that didn't include one. Unfortunately, that code was sometimes being called (at least in some of our integration tests) without a node key due to its registration with health.RegisterWatcher(direct.ReportHealthChange). Fortunately tests in corp caught this before we cut a release. It's possible this only affects this particular integration test's environment, but still worth fixing. Updates tailscale/corp#1297 Change-Id: I84046779955105763dc1be5121c69fec3c138672 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Joe Tsai	85febda86d	all: use zstdframe where sensible (#11491 ) Use the zstdframe package where sensible instead of plumbing around our own zstd.Encoder just for stateless operations. This causes logtail to have a dependency on zstd, but that's arguably okay since zstd support is implicit to the protocol between a client and the logging service. Also, virtually every caller to logger.NewLogger was manually setting up a zstd.Encoder anyways, meaning that zstd was functionally always a dependency. Updates #cleanup Updates tailscale/corp#18514 Signed-off-by: Joe Tsai <joetsai@digital-static.net>	8 months ago
Adrian Dewhurst	2f7e7be2ea	control/controlclient: do not alias peer CapMap Updates #cleanup Change-Id: I10fd5e04310cdd7894a3caa3045b86eb0a06b6a0 Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	8 months ago
Brad Fitzpatrick	20e9f3369d	control/controlclient: send load balancing hint HTTP request header Updates tailscale/corp#1297 Change-Id: I0b102081e81dfc1261f4b05521ab248a2e4a1298 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Claire Wang	221de01745	control/controlclient: fix sending peer capmap changes (#11457 ) Instead of just checking if a peer capmap is nil, compare the previous state peer capmap with the new peer capmap. Updates tailscale/corp#17516 Signed-off-by: Claire Wang <claire@tailscale.com>	8 months ago
Brad Fitzpatrick	e1bd7488d0	all: remove LenIter, use Go 1.22 range-over-int instead Updates #11058 Updates golang/go#65685 Change-Id: Ibb216b346e511d486271ab3d84e4546c521e4e22 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	9 months ago
Joe Tsai	94a4f701c2	all: use reflect.TypeFor now available in Go 1.22 (#11078 ) Updates #cleanup Signed-off-by: Joe Tsai <joetsai@digital-static.net>	9 months ago
Brad Fitzpatrick	2bd3c1474b	util/cmpx: delete now that we're using Go 1.22 Updates #11058 Change-Id: I09dea8e86f03ec148b715efca339eab8b1f0f644 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	9 months ago
Jordan Whited	8b47322acc	wgengine/magicsock: implement probing of UDP path lifetime (#10844 ) This commit implements probing of UDP path lifetime on the tail end of an active direct connection. Probing configuration has two parts - Cliffs, which are various timeout cliffs of interest, and CycleCanStartEvery, which limits how often a probing cycle can start, per-endpoint. Initially a statically defined default configuration will be used. The default configuration has cliffs of 10s, 30s, and 60s, with a CycleCanStartEvery of 24h. Probing results are communicated via clientmetric counters. Probing is off by default, and can be enabled via control knob. Probing is purely informational and does not yet drive any magicsock behaviors. Updates #540 Signed-off-by: Jordan Whited <jordan@tailscale.com>	10 months ago
James Tucker	38a1cf748a	control/controlclient,util/execqueue: extract execqueue into a package This is a useful primitive for asynchronous execution of ordered work I want to use in another change. Updates tailscale/corp#16833 Signed-off-by: James Tucker <james@tailscale.com>	10 months ago
James 'zofrex' Sanderson	124dc10261	controlclient,tailcfg,types: expose MaxKeyDuration via localapi (#10401 ) Updates tailscale/corp#16016 Signed-off-by: James Sanderson <jsanderson@tailscale.com>	10 months ago
James 'zofrex' Sanderson	10c595d962	ipn/ipnlocal: refresh node key without blocking if cap enabled (#10529 ) Updates tailscale/corp#16016 Signed-off-by: James Sanderson <jsanderson@tailscale.com> Co-authored-by: Maisem Ali <maisem@tailscale.com>	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
Andrew Lytvynov	945cf836ee	ipn: apply tailnet-wide default for auto-updates (#10508 ) When auto-update setting in local Prefs is unset, apply the tailnet default value from control. This only happens once, when we apply the default (or when the user manually overrides it), tailnet default no longer affects the node. Updates #16244 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	11 months ago
Naman Sood	0a59754eda	linuxfw,wgengine/route,ipn: add c2n and nodeattrs to control linux netfilter Updates tailscale/corp#14029. Signed-off-by: Naman Sood <mail@nsood.in>	11 months ago

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562 Commits (17c88a19bedb673e7054793710c1e49cd9321cab)