611 Commits (b775df0b57a8e50f9edc7d464ed5afcf0aecd7ea)

Author	SHA1	Message	Date
Brad Fitzpatrick	a04801e037	ipn/ipnlocal: ignore NetfilterMode pref on Synology ... On clean installs we didn't set use iptables, but during upgrades it looks like we could use old prefs that directed us to go into the iptables paths that might fail on Synology. Updates #1995 Fixes tailscale/tailscale-synology#57 (I think) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Elias Naur	adfe8cf41d	paths: generalize IOSSharedDir to cover Android ... Also fix an error message while here. Signed-off-by: Elias Naur <mail@eliasnaur.com>	4 years ago
David Anderson	df350e2069	ipn/ipnlocal: initialize DNS config maps unconditionally. ... Fixes #1963. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Crawshaw	293a2b11cd	ipn: allow b to be nil in NewBackendServer ... A couple of code paths in ipnserver use a NewBackendServer with a nil backend just to call the callback with an encapsulated error message. This covers a panic case seen in logs. For #1920 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Anderson	e2dcf63420	net/dns: replace AuthoritativeSuffixes with nil Route entries. ... This leads to a cleaner separation of intent vs. implementation (Routes is now the only place specifying who handles DNS requests), and allows for cleaner expression of a configuration that creates MagicDNS records without serving them to the OS. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	6690f86ef4	net/dns: always offer MagicDNS records at 100.100.100.100. ... Fixes #1886. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	25df067dd0	all: adapt to opaque netaddr types ... This commit is a mishmash of automated edits using gofmt: gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w . gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w . gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w . gofmt -r 'a.IP.As16 -> a.IP().As16' -w . gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w . gofmt -r 'a.IP.As4 -> a.IP().As4' -w . gofmt -r 'a.IP.String -> a.IP().String' -w . And regexps: \w*(.*)\.Port = (.*) -> $1 = $1.WithPort($2) \w*(.*)\.IP = (.*) -> $1 = $1.WithIP($2) And lots of manual fixups. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Avery Pennarun	6fd4e8d244	ipnlocal: fix switching users while logged in + Stopped. ... This code path is very tricky since it was originally designed for the "re-authenticate to refresh my keys" use case, which didn't want to lose the original session even if the refresh cycle failed. This is why it acts differently from the Logout(); Login(); case. Maybe that's too fancy, considering that it probably never quite worked at all, for switching between users without logging out first. But it works now. This was more invasive than I hoped, but the necessary fixes actually removed several other suspicious BUG: lines from state_test.go, so I'm pretty confident this is a significant net improvement. Fixes tailscale/corp#1756. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	285d0e3b4d	ipnlocal: fix deadlock in RequestEngineStatusAndWait() error path. ... If the engine was shutting down from a previous session (e.closing=true), it would return an error code when trying to get status. In that case, ipnlocal would never unblock any callers that were waiting on the status. Not sure if this ever happened in real life, but I accidentally triggered it while writing a test. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Brad Fitzpatrick	36a26e6a71	internal/deephash: rename from deepprint ... Yes, it printed, but that was an implementation detail for hashing. And coming optimization will make it print even less. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	366b3d3f62	ipn{,/ipnserver}: delay JSON marshaling of ipn.Notifies ... If nobody is connected to the IPN bus, don't burn CPU & waste allocations (causing more GC) by encoding netmaps for nobody. This will notably help hello.ipn.dev. Updates tailscale/corp#1773 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e72ed3fcc2	ipn/{ipnlocal,ipnstate}: add PeerStatus.ID stable ID to status --json output ... Needed for the "up checker" to map back from exit node stable IDs (the ipn.Prefs.ExitNodeID) back to an IP address in error messages. But also previously requested so people can use it to then make API calls. The upcoming "tailscale admin" subcommand will probably need it too. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	78d4c561b5	types/logger: add key grinder stats lines to rate-limiting exemption list ... Updates #1749 Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Avery Pennarun	6d10655dc3	ipnlocal: accept a new opts.UpdatePrefs field. ... This is needed because the original opts.Prefs field was at some point subverted for use in frontend->backend state migration for backward compatibility on some platforms. We still need that feature, but we also need the feature of providing the full set of prefs from `tailscale up`, *not* including overwriting the prefs.Persist keys, so we can't use the original field from `tailscale up`. `tailscale up` had attempted to compensate for that by doing SetPrefs() before Start(), but that violates the ipn.Backend contract, which says you should call Start() before anything else (that's why it's called Start()). As a result, doing SetPrefs({ControlURL=..., WantRunning=true}) would cause a connection to the *previous* control server (because WantRunning=true), and then connect to the *new* control server only after running Start(). This problem may have been avoided before, but only by pure luck. It turned out to be relatively harmless since the connection to the old control server was immediately closed and replaced anyway, but it created a race condition that could have caused spurious notifications or rejected keys if the server responded quickly. As already covered by existing TODOs, a better fix would be to have Start() get out of the business of state migration altogether. But we're approaching a release so I want to make the minimum possible fix. Fixes #1840. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Brad Fitzpatrick	4066c606df	ipn/ipnlocal: update peerapi logging of received PUTs ... Clarify direction and add duration. (per chat with Avery) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f5bccc0746	ipn/ipnlocal: redact more errors ... Updates tailscale/corp#1636 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	96ef8d34ef	ipn/ipnlocal: switch from testify to quicktest ... Per discussion, we want to have only one test assertion library, and we want to start by exploring quicktest. This was a mostly mechanical translation. I think we could make this nicer by defining a few helper closures at the beginning of the test. Later. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	544d8d0ab8	ipn/ipnlocal: remove NewLocalBackendWithClientGen ... This removes the NewLocalBackendWithClientGen constructor added in b4d04a065f and instead adds LocalBackend.SetControlClientGetterForTesting, mirroring LocalBackend.SetHTTPTestClient. NewLocalBackendWithClientGen was weird in being exported but taking an unexported type. This was noted during code review: https://github.com/tailscale/tailscale/pull/1818#discussion_r623155669 which ended in: "I'll leave it for y'all to clean up if you find some way to do it elegantly." This is more idiomatic. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Avery Pennarun	0181a4d0ac	ipnlocal: don't pause the controlclient until we get at least one netmap. ... Without this, macOS would fail to display its menu state correctly if you started it while !WantRunning. It relies on the netmap in order to show the logged-in username. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	4ef207833b	ipn: !WantRunning + !LoggedOut should not be idle on startup. ... There was logic that would make a "down" tailscale backend (ie. !WantRunning) refuse to do any network activity. Unfortunately, this makes the macOS and iOS UI unable to render correctly if they start while !WantRunning. Now that we have Prefs.LoggedOut, use that instead. So `tailscale down` will still allow the controlclient to connect its authroutine, but pause the maproutine. `tailscale logout` will entirely stop all activity. This new behaviour is not obviously correct; it's a bit annoying that `tailsale down` doesn't terminate all activity like you might expect. Maybe we should redesign the UI code to render differently when disconnected, and then revert this change. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	4f3315f3da	ipnlocal: setting WantRunning with EditPrefs was special. ... EditPrefs should be just a wrapper around the action of changing prefs, but someone had added a side effect of calling Login() sometimes. The side effect happened *after* running the state machine, which would sometimes result in us going into NeedsLogin immediately before calling cc.Login(). This manifested as the macOS app not being able to Connect if you launched it with LoggedOut=false and WantRunning=false. Trying to Connect() would sent us to the NeedsLogin state instead. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	2a4d1cf9e2	Add prefs.LoggedOut to fix several state machine bugs. ... Fixes: tailscale/corp#1660 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	b0382ca167	ipn/ipnlocal: some state_test cleanups. ... This doesn't change the actual functionality. Just some additional comments and fine tuning. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	ac9cd48c80	ipnlocal: fix deadlock when calling Shutdown() from Start(). ... Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	ecdba913d0	Revert "ipn/ipnlocal: be authoritative for the entire MagicDNS record tree." ... Unfortunately this broke MagicDNS almost entirely. Updates: tailscale/corp#1706 This reverts commit 1d7e7b49eb.	4 years ago
Avery Pennarun	b7e31ab1a4	ipn: mock controlclient.Client; big ipn.Backend state machine test. ... A very long unit test that verifies the way the controlclient and ipn.Backend interact. This is a giant sequential test of the state machine. The test passes, but only because it's asserting all the wrong behaviour. I marked all the behaviour I think is wrong with BUG comments, and several additional test opportunities with TODO. Note: the new test supercedes TestStartsInNeedsLoginState, which was checking for incorrect behaviour (although the new test still checks for the same incorrect behaviour) and assumed .Start() would converge before returning, which it happens to do, but only for this very specific case, for the current implementation. You're supposed to wait for the notifications. Updates: tailscale/corp#1660 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	b4d04a065f	controlclient: extract a Client interface and rename Client->Auto. ... This will let us create a mock or fake Client implementation for use with ipn.Backend. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
David Anderson	1d7e7b49eb	ipn/ipnlocal: be authoritative for the entire MagicDNS record tree. ... With this change, shared node names resolve correctly on split DNS-supporting operating systems. Fixes tailscale/corp#1706 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	b7a497a30b	ipn/ipnlocal: make FileTargets check IPN state first ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4bf6939ee0	ipn/ipnlocal: remove t.Parallel from recently added test ... The test modifies a global; it shouldn't be parallel. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a48c8991f1	ipn/ipnlocal: add a test for earlier lazy machine key generation change ... Updates #1573 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	306a094d4b	ipn/ipnlocal: remove IPv6 records from MagicDNS. ... Fixes #1813. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	3bdc9e9cb2	ipn/ipnlocal: prevent a now-expected [unexpected] log message on Windows ... Updates #1620 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	138921ae40	ipn/ipnlocal: always write files to partial files, even in buffered mode ... The intention was always that files only get written to *.partial files and renamed at the end once fully received, but somewhere in the process that got lost in buffered mode and *.partial files were only being used in direct receive mode. This fix prevents WaitingFiles from returning files that are still being transferred. Updates tailscale/corp#1626 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	5e268e6153	ipn/ipnlocal: use delete marker files to work around Windows delete problems ... If DeleteFile fails on Windows due to another process (anti-virus, probably) having our file open, instead leave a marker file that the file is logically deleted, and remove it from API calls and clean it up lazily later. Updates tailscale/corp#1626 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Aleksandar Pesic	7c985e4944	ipn/ipnlocal: add file sharing to windows shell ... Updates: tailscale/winmin#33 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Brad Fitzpatrick	fe53a714bd	ipn/ipnlocal: add a LocalBackend.Start fast path if already running ... Updates tailscale/corp#1621 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ad1a595a75	ipn/ipnlocal: close peer API listeners on transition away from Running ... Updates tailscale/corp#1621 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8a449c4dcd	ipn: define NewBackendServer nil as not affecting Backend's NotifyCallback ... Updates tailscale/corp#1646 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	36d030cc36	ipn/ipnlocal: use fallback default DNS whenever exit nodes are on. ... Fixes #1625 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	86e85d8934	ipn/ipnlocal: add peerapi goroutine fetch ... Between owners. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2d786821f6	ipn/ipnlocal: put a retry loop around Windows file deletes ... oh, Windows. Updates tailscale/corp#1626 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	529ef98b2a	ipn/ipnlocal: fix approxSize operator precedence ... Whoops. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b03c23d2ed	ipn/ipnlocal: log on DeleteFile error ... Updates tailscale/corp#1626 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2f17a34242	ipn/ipnlocal: fix tailscale status --json AuthURL field ... It was getting cleared on notify. Document that authURL is cleared on notify and add a new field that isn't, using the new field for the JSON status. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	09891b9868	ipn/ipnlocal: on fresh lazy-connecting install, start in state NeedsLogin ... Fixes #1759 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	91c9c33036	cmd/tailscaled: don't block ipnserver startup behind engine init on Windows ... With this change, the ipnserver's safesocket.Listen (the localhost tcp.Listen) happens right away, before any synchronous TUN/DNS/Engine/etc setup work, which might be slow, especially on early boot on Windows. Because the safesocket.Listen starts up early, that means localhost TCP dials (the safesocket.Connect from the GUI) complete successfully and thus the GUI avoids the MessageBox error. (I verified that pacifies it, even without a Listener.Accept; I'd feared that Windows localhost was maybe special and avoided the normal listener backlog). Once the GUI can then connect immediately without errors, the various timeouts then matter less, because the backend is no longer trying to race against the GUI's timeout. So keep retrying on errors for a minute, or 10 minutes if the system just booted in the past 10 minutes. This should fix the problem with Windows 10 desktops auto-logging in and starting the Tailscale frontend which was then showing a MessageBox error about failing to connect to tailscaled, which was slow coming up because the Windows networking stack wasn't up yet. Fingers crossed. Fixes #1313 (previously #1187, etc) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	6fd9e28bd0	ipn/ipnlocal: add arpa suffixes to MagicDNS for reverse lookups. ... This used to not be necessary, because MagicDNS always did full proxying. But with split DNS, we need to know which names to route to our resolver, otherwise reverse lookups break. This captures the entire CGNAT range, as well as our Tailscale ULA. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	48d4f14652	ipn/ipnlocal: only set authoritative domains when using MagicDNS. ... Otherwise, the existence of authoritative domains forces full DNS proxying even when no other DNS config is present. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	f99e63bb17	ipn: don't Logout when Windows GUI disconnects ... Logout used to be a no-op, so the ipnserver previously synthensized a Logout on disconnect. Now that Logout actually invalidates the node key that was forcing all GUI closes to log people out. Instead, add a method to LocalBackend to specifically mean "the Windows GUI closed, please forget all the state". Fixes tailscale/corp#1591 (ignoring the notification issues, tracked elsewhere) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	1e5c608fae	ipn/ipnlocal: plumb fallback DNS in as a workaround for split DNS issues. ... Cause of #1743. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	3d0599fca0	ipn{,/ipnlocal}: in direct file receive mode, don't rename partial file ... Let caller (macOS) do it so Finder progress bar can be dismissed without races. Updates tailscale/corp#1575 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a58fbb4da9	ipn/ipnlocal: only fix peerapiListener on Windows when running ... It's just logspam otherwise. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Maisem Ali	36fa29feec	ipn/ipnlocal: restrict local lan access to linux machines. ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Brad Fitzpatrick	8570f82c8b	ipn/ipnlocal: finish/fix up filename validation & encoding on disk ... It used to just store received files URL-escaped on disk, but that was a half done lazy implementation, and pushed the burden to callers to validate and write things to disk in an unescaped way. Instead, do all the validation in the receive handler and only accept filenames that are UTF-8 and in the intersection of valid names that all platforms support. Fixes tailscale/corp#1594 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	cad8df500c	ipn/ipnlocal: add some more peerapi handlePeerPut tests ... Updates tailscale/corp#1594 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	0d1550898e	ipn/ipnlocal: add some peerapi tests ... Updates tailscale/corp#1594 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8f3e453356	ipn, cmd/tailscale/cli: add pref to configure sudo-free operator user ... From discussion with @danderson. Fixes #1684 (in a different way) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	49808ae6ea	ipn{,/ipnlocal}, cmd/tailscale/cli: don't check pref reverts on initial up ... The ipn.NewPrefs func returns a populated ipn.Prefs for historical reasons. It's not used or as important as it once was, but it hasn't yet been removed. Meanwhile, it contains some default values that are used on some platforms. Notably, for this bug (#1725), Windows/Mac use its Prefs.RouteAll true value (to accept subnets), but Linux users have always gotten a "false" value for that, because that's what cmd/tailscale's CLI default flag is _for all operating systems_. That meant that "tailscale up" was rightfully reporting that the user was changing an implicit setting: RouteAll was changing from true with false with the user explicitly saying so. An obvious fix might be to change ipn.NewPrefs to return Prefs.RouteAll == false on some platforms, but the logic is complicated by darwin: we want RouteAll true on windows, android, ios, and the GUI mac app, but not the CLI tailscaled-on-macOS mode. But even if we used build tags (e.g. the "redo" build tag) to determine what the default is, that then means we have duplicated and differing "defaults" between both the CLI up flags and ipn.NewPrefs. Furthering that complication didn't seem like a good idea. So, changing the NewPrefs defaults is too invasive at this stage of the release, as is removing the NewPrefs func entirely. Instead, tweak slightly the semantics of the ipn.Prefs.ControlURL field. This now defines that a ControlURL of the empty string means both "we're uninitialized" and also "just use the default". Then, once we have the "empty-string-means-unintialized" semantics, use that to suppress "tailscale up"'s recent implicit-setting-revert checking safety net, if we've never initialized Tailscale yet. And update/add tests. Fixes #1725 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4df6e62fbc	ipn: add DefaultControlURL const, replace few literals with it ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b993d9802a	ipn/ipnlocal, etc: require file sharing capability to send/recv files ... tailscale/corp#1582 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d6a95d807a	ipn/ipnlocal: advertise netstack to control server ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	762180595d	ipn/ipnstate: add PeerStatus.TailscaleIPs slice, deprecate TailAddr ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	34d2f5a3d9	tailcfg: add Endpoint, EndpointType, MapRequest.EndpointType ... Track endpoints internally with a new tailcfg.Endpoint type that includes a typed netaddr.IPPort (instead of just a string) and includes a type for how that endpoint was discovered (STUN, local, etc). Use []tailcfg.Endpoint instead of []string internally. At the last second, send it to the control server as the existing []string for endpoints, but also include a new parallel MapRequest.EndpointType []tailcfg.EndpointType, so the control server can start filtering out less-important endpoint changes from new-enough clients. Notably, STUN-discovered endpoints can be filtered out from 1.6+ clients, as they can discover them amongst each other via CallMeMaybe disco exchanges started over DERP. And STUN endpoints change a lot, causing a lot of MapResposne updates. But portmapped endpoints are worth keeping for now, as they they work right away without requiring the firewall traversal extra RTT dance. End result will be less control->client bandwidth. (despite negligible increase in client->control bandwidth) Updates tailscale/corp#1543 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b91f3c4191	ipn/ipnlocal: fix peerapi printf arg mismatch ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1f4cf1a4f4	ipn/localapi: only require read access to list file targets ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	db5e269463	client/tailscale/apitype: move local API types to new apitype package ... They were scattered/duplicated in misc places before. It can't be in the client package itself for circular dep reasons. This new package is basically tailcfg but for localhost communications, instead of to control. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Maisem Ali	1b9d8771dc	ipn/ipnlocal,wgengine/router,cmd/tailscale: add flag to allow local lan access when routing traffic via an exit node. ... For #1527 Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Brad Fitzpatrick	8e75c8504c	ipn/ipnlocal: in direct file mode, don't readdir ... And don't even allow attempts at Open/Delete. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	9972c02b60	cmd/tailscale/cli: don't let up change prefs based on implicit flag values ... This changes the behavior of "tailscale up". Previously "tailscale up" always did a new Start and reset all the settings. Now "tailscale up" with no flags just brings the world [back] up. (The opposite of "tailscale down"). But with flags, "tailscale up" now only is allowed to change preferences if they're explicitly named in the flags. Otherwise it's an error. Or you need to use --reset to explicitly nuke everything. RELNOTE=tailscale up change Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f5742b0647	ipn/ipnlocal: add LocalBackend.SetDirectFileRoot ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a3113a793a	ipn: add hostname to Prefs.Pretty output ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4c3f7c06fc	ipn/ipnlocal: be consistent in not logging when no notify registered ... Some paths already didn't. And in the future I hope to shut all the notify funcs down end-to-end when nothing is connected (as in the common case in tailscaled). Then we can save some JSON encoding work. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	7c0e58c537	ipn/ipnlocal: remove redundant notify nil check ... send does it. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d9ee9a0d3f	ipn: set BackendServer's notify earlier; don't require Start ... We've been slowly making Start less special and making IPN a multi-connection "watch" bus of changes, but this Start specialness had remained. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8e4d1e3f2c	ipn: include err in Notify decode fatal path ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	303805a389	ipn/localapi: require write access to PATCH prefs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	79109f4965	ipn/ipnlocal: use PATCH for EditPrefs, not POST ... Addendum to earlier 00d641d9fc. Reserve POST for SetPrefs in the future. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	00d641d9fc	ipn/localapi: move EditPrefs to localapi ... Follow-up/revision to recent 53cfff109b which added EditPrefs. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	1a371b93be	util/dnsname: add FQDN type, use throughout codebase. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	3167e55ddf	ipn/{ipnlocal,localapi}, cmd/tailscale: add logout command ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	11127666b2	ipn/ipnlocal: fix deadlock from 227f73284 ... Sigh. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	227f73284f	ipn/ipnlocal: eagerly announce peerapi service(s) on change ... We were previously only doing it as a side effect of the port poller, which doesn't run on e.g. iOS. Updates tailscale/corp#1559	4 years ago
Brad Fitzpatrick	fe23506471	ipn/ipnlocal: avoid unneeded initPeerAPIListener work if no changes ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	20e7646b8d	ipn/ipnlocal: always set Notify.FilesWaiting, set IncomingFiles non-nil when empty	4 years ago
Brad Fitzpatrick	6d01d3bece	ipn/ipnlocal: provide IPN bus updates as files arrive ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	2f398106e2	ipn/ipnlocal: allow setting MagicDNS without DefaultResolvers. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	fad21af01c	tailcfg: add DNS routes and advanced resolver config. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	a9a3d3b4c1	ipn/ipnlocal: don't filter by time in FileTargets ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	71432c6449	ipn/ipnlocal: some more variable renames ... Missed in earlier commit. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e86b7752ef	ipn/ipnlocal: rename some variables to be consistent ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	da4cc8bbb4	net/dns: handle all possible translations of high-level DNS config. ... With this change, all OSes can sort-of do split DNS, except that the default upstream is hardcoded to 8.8.8.8 pending further plumbing. Additionally, Windows 8-10 can do split DNS fully correctly, without the 8.8.8.8 hack. Part of #953. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	939861773d	net/tstun: accept peerapi connections through the filter ... Fixes tailscale/corp#1545 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	950fc28887	ipn, paths, cmd/tailscaled: remove LegacyConfigPath, relaynode migration ... It is time. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d581ee2536	ipn: remove Options.HTTPTestClient, move to LocalBackend ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	50b309c1eb	ipn/localapi, cmd/tailscale: add API to get prefs, CLI debug command to show ... Updates #1436 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	799973a68d	ipn: move Options.Notify to its own method ... We already had SetNotifyCallback elsewhere on controlclient, so use that name. Baby steps towards some CLI refactor work. Updates tailscale/tailscale#1436	4 years ago
Brad Fitzpatrick	d488678fdc	cmd/tailscaled, wgengine{,/netstack}: add netstack hybrid mode, add to Windows ... For #707 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1f99f889e1	ipn/{ipnlocal,localapi}: add localapi handler to dial/proxy file PUTs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d717499ac4	ipn/localapi: add API for getting file targets ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Crawshaw	d2f838c058	ipn/localapi: 404 on bad endpoints ... Confused us for a while! Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Anderson	f89dc1c903	ipn/ipnlocal: don't install any magicdns names if not proxying. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	9b57cd53ba	ipn/ipnlocal: lazily connect to control, lazily generate machine key ... Fixes #1573 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d50406f185	ipn/ipnlocal: simplify loadStateLocked control flow a bit, restore logging ... The common Linux start-up path (fallback file defined but not existing) was missing the log print of initializing Prefs. The code was too twisty. Simplify a bit. Updates #1573 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	6ad44f9fdf	wgengine: take in dns.Config, split out to resolver.Config and dns.OSConfig. ... Stepping stone towards having the DNS package handle the config splitting. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	8af9d770cf	net/dns: rename Config to OSConfig. ... Making way for a new higher level config struct. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	cf361bb9b1	net/dns: remove PerDomain from Config. ... It's currently unused, and no longer makes sense with the upcoming DNS infrastructure. Keep it in tailcfg for now, since we need protocol compat for a bit longer. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	6266cf8e36	ipn/ipnlocal: fix peerapi6 port being report as 0 in netstack mode ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e698973196	ipn/policy: mark peerapi4 and peerapi6 as interesting services	4 years ago
David Anderson	90f82b6946	net/dns/resolver: add live reconfig, plumb through to ipnlocal. ... The resolver still only supports a single upstream config, and ipn/wgengine still have to split up the DNS config, but this moves closer to unifying the DNS configs. As a handy side-effect of the refactor, IPv6 MagicDNS records exist now. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	d99f5b1596	net/dns/resolver: factor the resolver out into a sub-package. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	53cfff109b	ipn: replace SetWantRunning(bool) with EditPrefs(MaskedPrefs) ... This adds a new ipn.MaskedPrefs embedding a ipn.Prefs, along with a bunch of "has bits", kept in sync with tests & reflect. Then it adds a Prefs.ApplyEdits(MaskedPrefs) method. Then the ipn.Backend interface loses its weirdo SetWantRunning(bool) method (that I added in 483141094c for "tailscale down") and replaces it with EditPrefs (alongside the existing SetPrefs for now). Then updates 'tailscale down' to use EditPrefs instead of SetWantRunning. In the future, we can use this to do more interesting things with the CLI, reconfiguring only certain properties without the reset-the-world "tailscale up". Updates #1436 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4ed6b62c7a	ipn/ipnlocal: refactor to unindent a bit ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1f583a895e	ipn/ipnlocal: stop sending machine key to frontends ... We were going to remove this in Tailscale 1.3 but forgot. This means Tailscale 1.8 users won't be able to downgrade to Tailscale 1.0, but that's fine. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Maisem Ali	db13b2d0c8	cmd/tailscale, ipn/localapi: add "tailscale bugreport" subcommand ... Adding a subcommand which prints and logs a log marker. This should help diagnose any issues that users face. Fixes #1466 Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Brad Fitzpatrick	c3bee0b722	ipn/ipnlocal: make peerapi work on iOS again ... It didn't have a storage directory. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1bd14a072c	cmd/tailscale, ipn/localapi: move IP forwarding check to tailscaled, API ... Instead of having the CLI check whether IP forwarding is enabled, ask tailscaled. It has a better idea. If it's netstack, for instance, the sysctl values don't matter. And it's possible that only the daemon has permission to know. Fixes #1626 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a998fe7c3d	control/controlclient: support lazy machine key generation ... It's not done in the caller yet, but the controlclient does it now. Updates #1573 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	cf2beafbcd	ipn/ipnlocal: on Windows peerapi bind failures, try again on link change ... Updates #1620 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6d1a9017c9	ipn/{ipnlocal,localapi}, client/tailscale: add file get/delete APIs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	672b9fd4bd	ipn{,/ipnlocal}: set new Notify.FilesWaiting when server has file(s) ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f01091babe	ipn/ipnlocal: make peerapi work in netstack mode ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	41e4e02e57	net/{packet,tstun}: send peerapi port in TSMP pongs ... For discovery when an explicit hostname/IP is known. We'll still also send it via control for finding peers by a list. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	9659ab81e0	ipn/ipnlocal: send peerapi port(s) in Hostinfo.Services ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	35596ae5ce	ipn/ipnlocal: push down a user-specific root dir to peerapi handler ... And add a put handler. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f26dfd054a	ipn/ipnlocal: rename/document peerapi stuff a bit, pass self identity ... So handlers can vary based on whether owner of peer matches owner of local node. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1642dfdb07	ipn/ipnlocal: get peerapi ~working in macOS/iOS NetworkExtension sandbox ... IPv4 and IPv6 both work remotely, but IPv6 doesn't yet work from the machine itself due to routing mysteries. Untested yet on iOS, but previous prototype worked on iOS, so should work the same. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	5a62aa8047	ipn/ipnlocal: pass down interface state to peerapi ListenConfig hook ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	9f7f2af008	wgengine/router/dns: move to net/dns. ... Preparation for merging the APIs and whatnot. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	8432999835	Move wgengine/tsdns to net/dns. ... Straight move+fixup, no other changes. In prep for merging with wgengine/router/dns. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	81143b6d9a	ipn/ipnlocal: start of peerapi between nodes ... Also some necessary refactoring of the ipn/ipnstate too. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2384c112c9	net/packet, wgengine/{filter,tstun}: add TSMP ping ... Fixes #1467 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	8c0a0450d9	ipn/ipnlocal: allow client access to exit node's public IPs. ... "public IP" is defined as an IP address configured on the exit node itself that isn't in the list of forbidden ranges (RFC1918, CGNAT, Tailscale). Fixes #1522. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	0a02aaf813	control, ipn, tailcfg: remove golang.org/x/oauth2 dep, add tailcfg.Oauth2Token ... golang.org/x/oauth2 pulls in App Engine and grpc module dependencies, screwing up builds that depend on this module. Some background on the problem: https://go.googlesource.com/proposal/+/master/design/36460-lazy-module-loading.md Fixes tailscale/corp#1471 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	439d70dce2	cmd/tailscale, ipn/localapi: get daemon version from localapi status ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d0dffe33c0	cmd/tailscale, ipn/localapi: use localapi for status, not IPN acrobatics ... Yay simpler code. Tested on Linux, macOS and Windows. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	27c4dd9a97	Revert "cmd/tailscaled, ipn/{ipnlocal,ipnserver}: let netstack get access to LocalBackend" ... This reverts commit 2bc518dcb2. @namansood didn't end up needing it in his 770aa71ffb.	4 years ago
Brad Fitzpatrick	9eb65601ef	health, ipn/ipnlocal: track, log overall health ... Updates #1505 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ba8c6d0775	health, controlclient, ipn, magicsock: tell health package state of things ... Not yet checking anything. Just plumbing states into the health package. Updates #1505 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	770aa71ffb	client, cmd/hello, ipn, wgengine: fix whois for netstack-forwarded connections ... Updates #504 Updates #707 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	2bc518dcb2	cmd/tailscaled, ipn/{ipnlocal,ipnserver}: let netstack get access to LocalBackend ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Crawshaw	bdb91a20eb	ipnstate, ipnlocal: add AuthURL to status ... Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Anderson	d79a2f3809	wgengine/filter: only log packets to/from non-default routes. ... Fixes tailscale/corp#1429. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	43b30e463c	ipn/ipnserver: refactor permissions checks a bit, document more, fix Windows ... Windows was only running the localapi on the debug port which was a stopgap at the time while doing peercreds work. Removed that, and wired it up correctly, with some more docs. More clean-up to do after 1.6, moving the localhost TCP auth code into the peercreds package. But that's too much for now, so the docs will have to suffice, even if it's at a bit of an awkward stage with the newly-renamed "NotWindows" field, which still isn't named well, but it's better than its old name of "Unknown" which hasn't been accurate since unix sock peercreds work anyway. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a4b585947d	ipn/localapi, client/tailscale: add a goroutine dump handler ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1ca3e739f7	ipn/ipnserver: set PermitWrite on localapi handler ... The TODO was easy now with peerCreds and the isReadonlyConn func. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	affd859121	ipn/ipnlocal, control/controlclient: propagate link monitor to controlclient ... Don't use it yet, but get it down there. Updates #1455 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	82edf94df7	ipn/ipnlocal: make IPv6 OS routes be a single /48 for our ULA space ... And if we have over 10,000 CGNAT routes, just route the entire CGNAT range. (for the hello test server) Fixes #1450 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	15b6969a95	ipn/ipnserver: grant client r/w access if peer uid matches tailscaled ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	be779b3587	safesocket, ipn/ipnserver: unify peercred info, fix bug on FreeBSD etc ... FreeBSD wasn't able to run "tailscale up" since the recent peercred refactoring. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	625c413508	ipn/ipnlocal: fix another regression from link monitoring refactor ... Prior to e3df29d488, the Engine.SetLinkChangeCallback fired immediately, even if there was no change. The ipnlocal code apparently depended on that, and it broke integration tests (which live in another repo). So mimic the old behavior and call the ipnlocal callback immediately at init. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	f647e3daaf	ipn/ipnlocal: transform default routes into "all but LAN" routes. ... Fixes #1177. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	e3df29d488	wgengine{,/monitor}: move interface state fetching/comparing to monitor ... Gets it out of wgengine so the Engine isn't responsible for being a callback registration hub for it. This also removes the Engine.LinkChange method, as it's no longer necessary. The monitor tells us about changes; it doesn't seem to need any help. (Currently it was only used by Swift, but as of 14dc790137 we just do the same from Go) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	38dc6fe758	cmd/tailscaled, wgengine: remove --fake, replace with netstack ... And add a --socks5-server flag. And fix a race in SOCKS5 replies where the response header was written concurrently with the copy from the backend. Co-authored with Naman Sood. Updates #707 Updates #504 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	360095cd34	ipn: add tests for exit node pretty printing. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	8ee1cb6156	ipn/ipnlocal: mark findExitNodeID as requiring mutex. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	abfd73f569	ipn: print currently selected exit route in Prefs.String(). ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	2404c0ffad	ipn/ipnlocal: only filter out default routes when computing the local wg config. ... UIs need to see the full unedited netmap in order to know what exit nodes they can offer to the user. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	f11952ad7f	ipn/ipnserver: fix Windows connection auth regression ... Regression from code movement in d3efe8caf6 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	b83c273737	wgengine/filter: use IPSet for localNets instead of prefixes. ... Part of #1177, preparing for doing fancier set operations on the allowed local nets. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Sonia Appasamy	76fb27bea7	dnsname,tailcfg: add hostname sanitation logic to node display names (#1304) ... Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	4 years ago
Brad Fitzpatrick	7038c09bc9	ipn/ipnserver: on darwin, let users who are admins use CLI without sudo ... Tangentially related to #987, #177, #594, #925, #505 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d3efe8caf6	safesocket, ipn/ipnserver: look up peer creds on Darwin ... And open up socket permissions like Linux, now that we know who connections are from. This uses the new inet.af/peercred that supports Linux and Darwin at the moment. Fixes #1347 Fixes #1348 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	fdac0387a7	ipn/ipnserver, ipn/ipnlocal: move whois handler to new localapi package	4 years ago
David Anderson	e86b39b73f	ipn/ipnlocal: don't short-circuit default route filtering. ... If no exit node is specified, the filter must still run to remove offered default routes from all peers. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	1e7a35b225	types/netmap: split controlclient.NetworkMap off into its own leaf package ... Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ddfcc4326c	types/persist: split controlclient.Persist into a small leaf package ... This one alone doesn't modify the global dependency map much (depaware.txt if anything looks slightly worse), but it leave controlclient as only containing NetworkMap: bradfitz@tsdev:~/src/tailscale.com/ipn$ grep -F "controlclient." *.go backend.go: NetMap *controlclient.NetworkMap // new netmap received fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) handle.go: netmapCache *controlclient.NetworkMap handle.go:func (h *Handle) NetMap() *controlclient.NetworkMap { Once that goes into a leaf package, then ipn doesn't depend on controlclient at all, and then the client gets smaller. Updates #1278	4 years ago
David Anderson	a046b48593	cmd/tailscale/cli: display currently active exit node in `tailscale status`. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	6064b6ff47	wgengine/wgcfg/nmcfg: split control/controlclient/netmap.go into own package ... It couldn't move to ipnlocal due to test dependency cycles. Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	b9c2231fdf	ipn: program exit node into the data plane according to user pref. ... Part of #1153, #1154. Fixes #1224. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	d76334d2f0	ipn: split LocalBackend off into new ipn/ipnlocal package ... And move a couple other types down into leafier packages. Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc. Fixes #1181 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	e8cd7bb66f	tstest: simplify goroutine leak tests ... Use tb.Cleanup to simplify both the API and the implementation. One behavior change: When the number of goroutines shrinks, don't log. I've never found these logs to be useful, and they frequently add noise. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	c7d4bf2333	cmd/tailscale/cli: recommend sudo for 'tailscale up' on failure ... Fixes #1220	4 years ago
Brad Fitzpatrick	006a224f50	ipn/ipnserver, cmd/hello: do whois over unix socket, not debug http ... Start of a local HTTP API. Not a stable interface yet.	4 years ago
Josh Bleecher Snyder	fe7c3e9c17	all: move wgcfg from wireguard-go ... This is mostly code movement from the wireguard-go repo. Most of the new wgcfg package corresponds to the wireguard-go wgcfg package. wgengine/wgcfg/device{_test}.go was device/config{_test}.go. There were substantive but simple changes to device_test.go to remove internal package device references. The API of device.Config (now wgcfg.DeviceConfig) grew an error return; we previously logged the error and threw it away. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	c611d8480b	cmd/tailscaled: add whois/identd-ish debug handler	4 years ago
Brad Fitzpatrick	a7edcd0872	ipn/ipnstate: update tailscale status -web to match CLI	4 years ago
Brad Fitzpatrick	4d3c09ced4	ipn/ipnserver: on Windows in unattended mode, wait for Engine forever ... Updates #1187	4 years ago
Brad Fitzpatrick	fa3543d629	control/controlclient: use more direct way of getting the MagicDNS suffix ... Suggested by Avery earlier. Ends up fixing bug in "tailscale status" when MagicDNS if off too: https://forum.tailscale.com/t/1-3-293-is-released-a-1-4-0-pre-release/349/11?u=bradfitz	4 years ago
Brad Fitzpatrick	e7bf144c3f	ipn, wgengine/filter: fix Shields Up recent regression and old bug ... Fixes #1192 (regression) Fixes #1193 (old bug)	4 years ago
Brad Fitzpatrick	b560386c1a	net/packet, wgengine, tstun: add inter-node TSMP protocol for connect errors ... This adds a new IP Protocol type, TSMP on protocol number 99 for sending inter-tailscale messages over WireGuard, currently just for why a peer rejects TCP SYNs (ACL rejection, shields up, and in the future: nothing listening, something listening on that port but wrong interface, etc) Updates #1094 Updates tailscale/corp#1185 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	5611f290eb	ipn, ipnserver: only require sudo on Linux for mutable CLI actions ... This partially reverts d6e9fb1df0, which modified the permissions on the tailscaled Unix socket and thus required "sudo tailscale" even for "tailscale status". Instead, open the permissions back up (on Linux only) but have the server look at the peer creds and only permit read-only actions unless you're root. In the future we'll also have a group that can do mutable actions. On OpenBSD and FreeBSD, the permissions on the socket remain locked down to 0600 from d6e9fb1df0. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d6e9fb1df0	all: adjust Unix permissions for those without umasks ... Fixes tailscale/corp#1165 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Sonia Appasamy	024671406b	ipn: only send services in Hostinfo if Tailnet has opted-in to services collection (#1107) ... Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	4 years ago
Brad Fitzpatrick	5aa5db89d6	cmd/tailscaled, wgengine/netstack: add start of gvisor userspace netstack work ... Not usefully functional yet (mostly a proof of concept), but getting it submitted for some work @namansood is going to do atop this. Updates #707 Updates #634 Updates #48 Updates #835	4 years ago
Brad Fitzpatrick	5efb0a8bca	cmd/tailscale: change formatting of "tailscale status" ... * show DNS name over hostname, removing domain's common MagicDNS suffix. only show hostname if there's no DNS name. but still show shared devices' MagicDNS FQDN. * remove nerdy low-level details by default: endpoints, DERP relay, public key. They're available in JSON mode still for those who need them. * only show endpoint or DERP relay when it's active with the goal of making debugging easier. (so it's easier for users to understand what's happening) The asterisks are gone. * remove Tx/Rx numbers by default for idle peers; only show them when there's traffic. * include peers' owner login names * add CLI option to not show peers (matching --self=true, --peers= also defaults to true) * sort by DNS/host name, not public key * reorder columns	4 years ago
Josh Bleecher Snyder	18471a8792	ipn: close logger at the end of TestLocalLogLines ... If any goroutine continues to use the logger in TestLocalLogLines after the test finishes, the test panics. The culprit for this was wireguard-go; the previous commit fixed that. This commit adds suspenders: When the test is done, make logging calls into no-ops. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Denton Gentry	fa3e8e1a28	Add names to test cases in ipn/local_test.go. ... There are so many now that just a number doesn't work well. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	414cb4a695	Add test for dnsMapsEqual. ... Exercises most cases in the function. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Brad Fitzpatrick	b5129dadfd	ipn: fix buggy-looking format string in error log ... On shutdown, logs showed: wgengine status error: &errors.errorString{s:"engine closing; no status"}	4 years ago
Brad Fitzpatrick	e8ae355bb8	ipn: delete domainsForProxying, require explicit DNS search domains (mapver 9) (#1078) ... Previously the client had heuristics to calculate which DNS search domains to set, based on the peers' names. Unfortunately that prevented us from doing some things we wanted to do server-side related to node sharing. So, bump MapRequest.Version to 9 to signal that the client only uses the explicitly configured DNS search domains and doesn't augment it with its own list. Updates tailscale/corp#1026 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	56a7652dc9	wgkey: new package ... This is a replacement for the key-related parts of the wireguard-go wgcfg package. This is almost a straight copy/paste from the wgcfg package. I have slightly changed some of the exported functions and types to avoid stutter, added and tweaked some comments, and removed some now-unused code. To avoid having wireguard-go depend on this new package, wgcfg will keep its key types. We translate into and out of those types at the last minute. These few remaining uses will be eliminated alongside the rest of the wgcfg package. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	2fe770ed72	all: replace wgcfg.IP and wgcfg.CIDR with netaddr types ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	053a1d1340	all: annotate log verbosity levels on most egregiously spammy log prints ... Fixes #924 Fixes #282 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	294ceb513c	ipn, wgengine/magicsock: fix `tailscale status` display. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Christine Dodrill	2485faf69a	Merge branch 'main' into report-status-systemd	4 years ago
Christine Dodrill	7ea809897d	ipn/ipnserver: enable systemd-notify support ... Addresses #964 Still to be done: - Figure out the correct logging lines in util/systemd - Figure out if we need to slip the systemd.Status function anywhere else - Log util/systemd errors? (most of the errors are of the "you cannot do anything about this, but it might be a bad idea to crash the program if it errors" kind) Assistance in getting this over the finish line would help a lot. Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: rename the nonlinux file to appease the magic Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: fix package name Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: fix review feedback from @mdlayher Signed-off-by: Christine Dodrill <me@christine.website> cmd/tailscale{,d}: update depaware manifests Signed-off-by: Christine Dodrill <me@christine.website> util/systemd: use sync.Once instead of func init Signed-off-by: Christine Dodrill <me@christine.website> control/controlclient: minor review feedback fixes Signed-off-by: Christine Dodrill <me@christine.website> {control,ipn,systemd}: fix review feedback Signed-off-by: Christine Dodrill <me@christine.website> review feedback fixes Signed-off-by: Christine Dodrill <me@christine.website> ipn: fix sprintf call Signed-off-by: Christine Dodrill <me@christine.website> ipn: make staticcheck less sad Signed-off-by: Christine Dodrill <me@christine.website> ipn: print IP address in connected status Signed-off-by: Christine Dodrill <me@christine.website> ipn: review feedback Signed-off-by: Christine Dodrill <me@christine.website> final fixups Signed-off-by: Christine Dodrill <me@christine.website>	4 years ago
Josh Bleecher Snyder	a6cad71fb2	go.mod: upgrade staticcheck to 0.1.0 ... Also run go.mod and fix some staticcheck warnings. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	dfbde3d3aa	ipn: pass through the prefix length from control. ... Control sets this to /32 for IPv4 and /128 for IPv6. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	c0af7deb86	tailcfg, cmd/tailscale: add Hostinfo.ShareeNode, hide in "tailscale status"	4 years ago
Brad Fitzpatrick	cd6099113f	ipn: add a comment about skipping files with null bytes ... Updates #954	4 years ago
Alex Brainman	72e082aaf5	ipn: make LoadPrefs return os.ErrNotExist when reading corrupted files ... It appears some users have corrupted pref.conf files. Have LoadPrefs treat these files as non-existent. This way tailscale will make user login, and not crash. Fixes #954 Signed-off-by: Alex Brainman <alex.brainman@gmail.com>	4 years ago
Sonia Appasamy	0710fca0cd	tailcfg: include ShieldsUp in HostInfo	4 years ago
Brad Fitzpatrick	acade77c86	ipn/ipnserver: add knob to disable babysitter	4 years ago
Brad Fitzpatrick	19b0cfe89e	all: prepare for GOOS=ios in Go 1.16 ... Work with either way for now on iOS (darwin/arm64 vs ios/arm64). In February when Go 1.16 comes out we'll have a universal binary for darwin/arm64 (macOS) and will drop support for Go 1.15 and its darwin/amd64 meaning iOS. (it'll mean macOS). Context: * https://tip.golang.org/doc/go1.16#darwin * https://github.com/golang/go/issues/38485 * https://github.com/golang/go/issues/42100	4 years ago
Brad Fitzpatrick	d21956436a	ipn, tailcfg: change Windows subnet disabling behavior w/ WPAD ... In 1.0, subnet relays were not specially handled when WPAD+PAC was present on the network. In 1.2, on Windows, subnet relays were disabled if WPAD+PAC was present. That was what some users wanted, but not others. This makes it configurable per domain, reverting back to the 1.0 default state of them not being special. Users who want that behavior can then enable it. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	76d99cf01a	wgengine/filter: remove the Matches type. ... It only served to obscure the underlying slice type without adding much value. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	b3634f020d	wgengine/filter: use netaddr types in public API. ... We still use the packet.* alloc-free types in the data path, but the compilation from netaddr to packet happens within the filter package. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	b4e19b95ed	ipn: debug zero bytes in IPN json messages ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8f30fa67aa	ipn: treat zero-length file state store file as missing ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4f4e84236a	ipn: clean up Prefs logging at start ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6bcb466096	ipn: disambiguate how machine key was initialized ... Seeing "frontend-provided legacy machine key" was weird (and not quite accurate) on Linux machines where it comes from the _daemon key's persist prefs, not the "frontend". Make the log message distinguish between the cases. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	07b6ffd55c	ipn: only use Prefs, not computed stateKey, to determine server mode ... When the service was running without a client (e.g. after a reboot) and then the owner logs in and the GUI attaches, the computed state key changed to "" (driven by frontend prefs), and then it was falling out of server mode, despite the GUI-provided prefs still saying it wanted server mode. Also add some logging. And remove a scary "Access denied" from a user-visible error, making the two possible already-in-use error messages consistent with each other.	4 years ago
Brad Fitzpatrick	20a357b386	ipn, ipn/ipnserver: add IPN state for server in use, handle explicitly ... On Windows, we were previously treating a server used by different users as a fatal error, which meant the second user (upon starting Tailscale, explicitly or via Start Up programs) got an invasive error message dialog. Instead, give it its own IPN state and change the Notify.ErrMessage to be details in that state. Then the Windows GUI can be less aggresive about that happening. Also, * wait to close the IPN connection until the server ownership state changes so the GUI doesn't need to repeatedly reconnect to discover changes. * fix a bug discovered during testing: on system reboot, the ipnserver's serverModeUser was getting cleared while the state transitioned from Unknown to Running. Instead, track 'inServerMode' explicitly and remove the old accessor method which was error prone. * fix a rare bug where the client could start up and set the server mode prefs in its Start call and we wouldn't persist that to the StateStore storage's prefs start key. (Previously it was only via a prefs toggle at runtime)	4 years ago
Brad Fitzpatrick	f3aa08de76	ipn/ipnserver: remove "Server mode" from a user-visible error message ... That's an internal nickname.	4 years ago
Brad Fitzpatrick	cc3259f8d9	ipn: fix crash generating machine key on new installs ... Regression from d6ad41dcea (for #732). Probably also means eab6e9ea4e was unnecessary, but it's fine. Fixes #887	4 years ago
Brad Fitzpatrick	01ee638cca	Change some os.IsNotExist to errors.Is(err, os.ErrNotExist) for non-os errors. ... os.IsNotExist doesn't unwrap errors. errors.Is does. The ioutil.ReadFile ones happened to be fine but I changed them so we're consistent with the rule: if the error comes from os, you can use os.IsNotExist, but from any other package, use errors.Is. (errors.Is always would also work, but not worth updating all the code) The motivation here was that we were logging about failure to migrate legacy relay node prefs file on startup, even though the code tried to avoid that. See golang/go#41122	4 years ago
Elias Naur	eab6e9ea4e	ipn: don't temporarilySetMachineKeyInPersist for Android clients ... Without this change, newly installed Android clients crash on startup with panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x9881b9f8] goroutine 29 [running]: tailscale.com/ipn.(*LocalBackend).initMachineKeyLocked.func1(0x50cb1b9c, 0x503c9a00) /home/elias/proj/tailscale/ipn/local.go:711 +0x2c tailscale.com/ipn.(*LocalBackend).initMachineKeyLocked(0x503c9a00, 0x0, 0x0) /home/elias/proj/tailscale/ipn/local.go:736 +0x728 tailscale.com/ipn.(*LocalBackend).loadStateLocked(0x503c9a00, 0x988be40e, 0xb, 0x0, 0x0, 0x0, 0x0, 0x0) /home/elias/proj/tailscale/ipn/local.go:817 +0x1e8 tailscale.com/ipn.(*LocalBackend).Start(0x503c9a00, 0x0, 0x0, 0x988be40e, 0xb, 0x0, 0x0, 0x0, 0x0, 0x0, ...) /home/elias/proj/tailscale/ipn/local.go:412 +0x200 main.(*backend).Start(...) /home/elias/proj/tailscale-android/cmd/tailscale/backend.go:116 main.(*App).runBackend.func3(0x50106340, 0x5000c060, 0x50d9a280) /home/elias/proj/tailscale-android/cmd/tailscale/main.go:169 +0x90 created by main.(*App).runBackend /home/elias/proj/tailscale-android/cmd/tailscale/main.go:168 +0x27c Signed-off-by: Elias Naur <mail@eliasnaur.com>	4 years ago
Brad Fitzpatrick	2b819ab38c	ipn: don't log redundant peer stats so often ... It was especially bad on our GUI platforms with a frontend that polls it. No need to log it every few seconds if it's unchanged. Make it slightly less allocate-y while I'm here.	4 years ago
Brad Fitzpatrick	ff7ddd9d20	ipn/ipnserver: move Windows local disk logging up to the parent process ... To capture panics, log.Printf writes to os.Stderr, etc. Fixes #726	4 years ago
Brad Fitzpatrick	c64718e9a0	ipn/ipnserver: work around os/user.LookupId failure on Windows ... If we can't find the mapping from SID ("user ID") -> username, don't treat that as a fatal. Apparently that happens in the wild for Reasons. Ignore it for now. It's just a nice-to-have for error messages in the rare multi-user case. Updates #869 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	54e6c3a290	version: use OSS repo's version when building. ... When building with redo, also include the git commit hash from the proprietary repo, so that we have a precise commit that identifies all build info (including Go toolchain version). Add a top-level build script demonstrating to downstream distros how to burn the right information into builds. Adjust `tailscale version` to print commit hashes when available. Fixes #841. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	d6ad41dcea	ipn: send machine key to clients so they can downgrade to 1.0.x if needed ... Fixes #732 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e72f480d22	ipn: convert an int to a bool	4 years ago
Brad Fitzpatrick	999bc93a4d	ipn: log active account on change ... Updates tailscale/corp#461	4 years ago
Brad Fitzpatrick	66d196326f	ipn: rename 'new' variable to 'newp' ... Both to avoid shadowing new and because new is a little vague for such a long method handling multiple new & old things.	4 years ago
Brad Fitzpatrick	6b1d2a5630	ipn: don't set DebugFlags to len 1 slice of empty string [""] ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	62d941dc26	tailcfg: add a DebugFlags field for experiments and debugging. ... Also replaces the IPv6Overlay bool with use of DebugFlags, since it's currently an experimental configuration. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	7c8ca28c74	ipn: use cmd/cloner for Prefs.Clone ... Also, make cmd/cloner's top-level "func Clone" generation opt-in. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1fd9958e9d	ipn: wait for initial portpoll result before starting controlclient ... We were creating the controlclient and starting the portpoll concurrently, which frequently resulted in the first controlclient connection being canceled by the firsdt portpoll result ~milliseconds later, resulting in another HTTP request. Instead, wait a bit for the first portpoll result so it's much less likely to interrupt our controlclient connection. Updates tailscale/corp#557	4 years ago
Brad Fitzpatrick	515866d7c6	ipn, ipnserver, cmd/tailscale: add "server mode" support on Windows ... This partially (but not yet fully) migrates Windows to tailscaled's StateStore storage system. This adds a new bool Pref, ForceDaemon, defined as: // ForceDaemon specifies whether a platform that normally // operates in "client mode" (that is, requires an active user // logged in with the GUI app running) should keep running after the // GUI ends and/or the user logs out. // // The only current applicable platform is Windows. This // forced Windows to go into "server mode" where Tailscale is // running even with no users logged in. This might also be // used for macOS in the future. This setting has no effect // for Linux/etc, which always operate in daemon mode. Then, when ForceDaemon becomes true, we now write use the StateStore to track which user started it in server mode, and store their prefs under that key. The ipnserver validates the connections/identities and informs that LocalBackend which userid is currently in charge. The GUI can then enable/disable server mode at runtime, without using the CLI. But the "tailscale up" CLI was also fixed, so Windows users can use authkeys or ACL tags, etc. Updates #275	4 years ago
Brad Fitzpatrick	638127530b	ipn/ipnserver: prevent use by multiple Windows users, add HTML status page ... It was previously possible for two different Windows users to connect to the IPN server at once, but it didn't really work. They mostly stepped on each other's toes and caused chaos. Now only one can control it, but it can be active for everybody else. Necessary dependency step for Windows server/headless mode (#275) While here, finish wiring up the HTTP status page on Windows, now that all the dependent pieces are available.	4 years ago
Brad Fitzpatrick	6ee219a25d	ipn, wgengine, magicsock, tsdns: be quieter and less aggressive when offline ... If no interfaces are up, calm down and stop spamming so much. It was noticed as especially bad on Windows, but probably was bad everywhere. I just have the best network conditions testing on a Windows VM. Updates #604	4 years ago
Brad Fitzpatrick	587bdc4280	ipn, wgengine: disable subnet routes if network has PAC configuration ... Not configurable yet. Updates tailscale/corp#653 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	585a0d8997	all: use testing.T.TempDir ... Bit of Friday cleanup. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	12e28aa87d	ipn: on transition from no PAC to PAC, reset state ... So previous routes aren't shadowing resources that the operating system might need (Windows Domain Controller, DNS server, corp HTTP proxy, WinHTTP fetching the PAC file itself, etc). This effectively detects when we're transitioning from, say, public wifi to corp wifi and makes Tailscale remove all its routes and stops its TCP connections and tries connecting to everything anew. Updates tailscale/corp#653	4 years ago
Brad Fitzpatrick	b5a3850d29	control/controlclient, ipn: store machine key separately from user prefs/persist ... Updates #610 (fixes after some win/xcode changes in a separate repo)	4 years ago
Brad Fitzpatrick	c8f257df00	Revert "all: keep UserProfiles a slice instead of a map for longer" ... This reverts commit e5894aba42. Breaks macOS/iOS build. Reverting per chat with Josh; he'll fix later today.	4 years ago
Brad Fitzpatrick	90b7293b3b	ipn: add/move some constants, update a comment ... And make the StateStore implementations be Stringers, for error messages.	4 years ago
Josh Bleecher Snyder	e5894aba42	all: keep UserProfiles a slice instead of a map for longer ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	3bdcfa7193	ipn: remove DisableDERP pref ... We depend on DERP for NAT traversal now[0] so disabling it entirely can't work. What we'll do instead in the future is let people specify alternate/additional DERP servers. And perhaps in the future we could also add a pref for nodes to say when they expect to never need/want to use DERP for data (but allow it for NAT traversal communication). But this isn't the right pref and it doesn't work, so delete it. Fixes #318 [0] https://tailscale.com/blog/how-nat-traversal-works/	4 years ago
Brad Fitzpatrick	c41947903a	ipn: don't log if legacy prefs don't exist (the normal case these days)	4 years ago
Brad Fitzpatrick	96fd20e3c0	ipn: bail out a bit earlier when a peer doesn't have a DNS name ... It's properly handled later in tsdns.NewMap anyway, but there's work done in the meantime that can be skipped when a peer lacks a DNS name. It's also more clear that it's okay for it to be blank.	4 years ago
David Anderson	8f5b52e571	net/netns: add windows support. ... Also remove rebinding logic from the windows router. Magicsock will instead rebind based on link change signals. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	4f71319f7c	ipn/ipnserver: make ipnserver also be an HTTP server for localhost clients ... For now it just says hello to show auth works. More later.	4 years ago
Brad Fitzpatrick	3af64765fd	ipn: fix Windows crash from improperly strict assertion	4 years ago
Brad Fitzpatrick	8ecee476f6	ipn: simplify TestLocalLogLines, defer a Shutdown of its LocalBackend ... The test's LocalBackend was not shut down (Shutdown both releases resources and waits for its various goroutines to end). This should fix the test race we were seeing. It definitely fixes the file descriptor leak that preventing -race -count=500 from passing before.	4 years ago
Brad Fitzpatrick	68c42530e9	tstest: rename LogListener to LogLineTracker ... But mostly to rename tstest.ListenFor which has no mention of log lines in it. It sounded like a net.Listener or something.	4 years ago
Brad Fitzpatrick	9b07517f18	wgengine: add Engine.SetLinkChangeCallback ... Start of making the IPN state machine react to link changes and down its DNS & routes if necessary to unblock proxy resolution (e.g. for transitioning from public to corp networks where the corp network has mandatory proxies and WPAD PAC files that can't be resolved while using the DNS/routes configured previously) This change should be a no-op. Just some callback plumbing.	4 years ago
Brad Fitzpatrick	5acbb149a2	ipn/ipnstate: include DNSName in tailscale status --json output	4 years ago