tailscale

Commit Graph

Author	SHA1	Message	Date
Josh Bleecher Snyder	3c543c103a	wgengine/magicsock: unify initial bind and rebind We had two separate code paths for the initial UDP listener bind and any subsequent rebinds. IPv6 got left out of the rebind code. Rather than duplicate it there, unify the two code paths. Then improve the resulting code: * Rebind had nested listen attempts to try the user-specified port first, and then fall back to :0 if that failed. Convert that into a loop. * Initial bind tried only the user-specified port. Rebind tried the user-specified port and 0. But there are actually three ports of interest: The one the user specified, the most recent port in use, and 0. We now try all three in order, as appropriate. * In the extremely rare case in which binding to port 0 fails, use a dummy net.PacketConn whose reads block until close. This will keep the wireguard-go receive func goroutine alive. As a pleasant side-effect of this, if we decide that we need to resuscitate #1796, it will now be much easier. Fixes #1799 Co-authored-by: David Anderson <danderson@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	8fb66e20a4	wgengine/magicsock: remove DefaultPort const Assume it'll stay at 0 forever, so hard-code it and delete code conditional on it being non-0. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
David Anderson	25ce9885a2	net/dns: don't use NM+resolved for NM >=1.26.6. NetworkManager fixed the bug that forced us to use NetworkManager if it's programming systemd-resolved, and in the same release also made NetworkManager ignore DNS settings provided for unmanaged interfaces... Which breaks what we used to do. So, with versions 1.26.6 and above, we MUST NOT use NetworkManager to indirectly program systemd-resolved, but thankfully we can talk to resolved directly and get the right outcome. Fixes #1788 Signed-off-by: David Anderson <danderson@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	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
Alex Brainman	7689213aaa	cmd/tailscaled: add subcommands to install and remove tailscaled Windows service This change implements Windows version of install-system-daemon and uninstall-system-daemon subcommands. When running the commands the user will install or remove Tailscale Windows service. Updates #1232 Signed-off-by: Alex Brainman <alex.brainman@gmail.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
Brad Fitzpatrick	eb6115e295	cmd/tailscaled: let SOCKS5 dial non-Tailscale addrs in userspace mode Fixes #1617 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	5ea53891fe	cmd/tailscaled: populate netstack variable to use dialer in SOCKS5 Signed-off-by: Naman Sood <mail@nsood.in>	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
David Anderson	854d5d36a1	net/dns: return error from NewOSManager, use it to initialize NM. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	5480189313	net/dns: implement a DNS override workaround for legacy resolvconf. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	958782c737	cmd/{tailscale,tailscaled}: use netstack for subnet routing on Synology Updates #707 Fixes #451 Fixes tailscale/tailscale-synology#52 (just make it work by default) 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	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
David Anderson	bc4381447f	net/tstun: return the real interface name at device creation. This is usually the same as the requested interface, but on some unixes can vary based on device number allocation, and on Windows it's the GUID instead of the pretty name, since everything relating to configuration wants the GUID. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	7d84ee6c98	net/dns: unify the OS manager and internal resolver. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	4c61ebacf4	wgengine: move DNS configuration out of wgengine/router. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	b3ceca1dd7	wgengine/...: split into multiple receive functions Upstream wireguard-go has changed its receive model. NewDevice now accepts a conn.Bind interface. The conn.Bind is stateless; magicsock.Conns are stateful. To work around this, we add a connBind type that supports cheap teardown and bring-up, backed by a Conn. The new conn.Bind allows us to specify a set of receive functions, rather than having to shoehorn everything into ReceiveIPv4 and ReceiveIPv6. This lets us plumbing DERP messages directly into wireguard-go, instead of having to mux them via ReceiveIPv4. One consequence of the new conn.Bind layer is that closing the wireguard-go device is now indistinguishable from the routine bring-up and tear-down normally experienced by a conn.Bind. We thus have to explicitly close the magicsock.Conn when the close the wireguard-go device. One downside of this change is that we are reliant on wireguard-go to call receiveDERP to process DERP messages. This is fine for now, but is perhaps something we should fix in the future. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	f77ba75d6c	wgengine/router: move DNS cleanup into the DNS package. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	39b9ab3522	cmd/tailscaled: rename isUserspace to useNetstack The bool was already called useNetstack at the caller. isUserspace (to mean netstack) is confusing next to wgengine.NewUserspaceEngine, as that's a different type of 'userspace'. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	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
Maisem Ali	1c98c5f103	cmd/tailscaled: remove tailscaled binary on uninstall-system-daemon Signed-off-by: Maisem Ali <maisem@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
David Anderson	0fb738760f	wgengine: make Tun optional again, default to fake. This makes setup more explicit in prod codepaths, without requiring a bunch of arguments or helpers for tests and userspace mode. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	93a4aa697c	wgengine: default Router to a no-op router. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	440effb21a	wgengine: remove Config.TUN argument.	4 years ago
David Anderson	2df8adef9d	wgengine: make the tun.Device required at construction. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	82ab7972f4	net/tstun: rename NewFakeTUN to NewFake. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	588b70f468	net/tstun: merge in wgengine/tstun. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	018200aeba	net/tstun: rename from net/tun. We depend on wireguard-go/tun, identical leaf packages can be confusing in code. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	2b4bfeda1a	wgengine: pass in an explicit router.Router, rather than a generator. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	9ea5cbf81f	cmd/tailscaled: readd tun.Diagnose call, mistakenly lost during refactor. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	44d9929208	wgengine: remove Config.TUNName, require caller to create device. Also factors out device creation and associated OS workarounds to net/tun. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Adrian Dewhurst	04dd6d1dae	control/controlclient: sign RegisterRequest (#1549 ) control/controlclient: sign RegisterRequest Some customers wish to verify eligibility for devices to join their tailnets using machine identity certificates. TLS client certs could potentially fulfill this role but the initial customer for this feature has technical requirements that prevent their use. Instead, the certificate is loaded from the Windows local machine certificate store and uses its RSA public key to sign the RegisterRequest message. There is room to improve the flexibility of this feature in future and it is currently only tested on Windows (although Darwin theoretically works too), but this offers a reasonable starting place for now. Updates tailscale/coral#6 Signed-off-by: Adrian Dewhurst <adrian@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
Brad Fitzpatrick	dad10fee9c	Revert "cmd/tailscaled: split package main into main shim + package" This reverts commit `b81bd8025b`. Not needed. See: https://github.com/golang/go/wiki/Modules#how-can-i-track-tool-dependencies-for-a-module	4 years ago
Brad Fitzpatrick	82c4cb765c	cmd/tailscaled: split package main into main shim + package So we can empty import the guts of cmd/tailscaled from another module for go mod tidy reasons. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	01b90df2fa	net/packet, wgengine/filter: support SCTP Add proto to flowtrack.Tuple. Add types/ipproto leaf package to break a cycle. Server-side ACL work remains. Updates #1516 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Aleksandar Pesic	7b57310966	net/interfaces: use windows API to get the default route instead of parsing `route print` output Fixes: #1470 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Christine Dodrill	a480b1baa5	logpolicy: set log target on windows based on a registry key (#1542 ) Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	aa79a57f63	wgengine/netstack: use inet.af/netstack, remove 64-bit only limitation This reverts the revert commit `84aba349d9`. And changes us to use inet.af/netstack. Updates #1518 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	84aba349d9	Revert "wgengine/netstack: update gvisor to remove 64-bit only limitation" Breaks our corp repo due to gRPC dependency hell. This reverts commit `d42f8b7f9a`.	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	d42f8b7f9a	wgengine/netstack: update gvisor to remove 64-bit only limitation gVisor fixed their google/gvisor#1446 so we can include gVisor mode on 32-bit machines. A few minor upstream API changes, as normal. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	44ab0acbdb	net/portmapper, wgengine/monitor: cache gateway IP info until link changes Cuts down allocs & CPU in steady state (on regular STUN probes) when network is unchanging. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	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

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179 Commits (4037fc25c546a5433371bf44caf582ac93c94c47)