tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	7c285fe7ee	ipn/ipnlocal: fix error message typo in ingress peerapi handler Updates tailscale/corp#7515 Change-Id: I81edd7d9f8958eef61be71d3d34e545cd3347008 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	3114eacbb8	ipn/ipnlocal: don't warn about serve listener failing on IPv6-less machines Fixes #6303 Change-Id: Ie1ce12938f68dfa0533246bbe3b9d7f3e749a243 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	3f8e185003	health: add Warnable, move ownership of warnable items to callers The health package was turning into a rando dumping ground. Make a new Warnable type instead that callers can request an instance of, and then Set it locally in their code without the health package being aware of all the things that are warnable. (For plenty of things the health package will want to know details of how Tailscale works so it can better prioritize/suppress errors, but lots of the warnings are pretty leaf-y and unrelated) This just moves two of the health warnings. Can probably move more later. Change-Id: I51e50e46eb633f4e96ced503d3b18a1891de1452 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	b87cb2c4a5	ipn/ipnlocal: call restart backend on user changes This makes it so that the backend also restarts when users change, otherwise an extra call to Start was required. Updates #713 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	8e85227059	cmd/tailscale/cli: [set] handle selectively modifying routes/exit node Noticed this while debugging something else, we would reset all routes if either `--advertise-exit-node` or `--advertise-routes` were set. This handles correctly updating them. Also added tests. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	26d1fc867e	ipn/ipnlocal: delete profile on logout Updates #713 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	9e70daad6f	ipn/ipnlocal: make TKA tests not have side effects It left the envknob turned on which meant that running all the tests in the package had different behavior than running just any one test. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
shayne	74e892cbc2	ipn/ipnlocal: listen to serve ports on netmap addrs (#6282 ) Updates tailscale/corp#7515 Signed-off-by: Shayne Sweeney <shayne@tailscale.com>	2 years ago
Brad Fitzpatrick	08e110ebc5	cmd/tailscale: make "up", "status" warn if routes and --accept-routes off Example output: # Health check: # - Some peers are advertising routes but --accept-routes is false Also, move "tailscale status" health checks to the bottom, where they won't be lost in large netmaps. Updates #2053 Updates #6266 Change-Id: I5ae76a0cd69a452ce70063875cd7d974bfeb8f1a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	4c31183781	cmd/tailscale,ipn: minor fixes to tailscale lock commands * Fix broken add/remove key commands * Make lock status display whether the node is signed Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Maisem Ali	6cc0036b40	ipn/ipnlocal: use updated prefs in tkaSyncIfNeeded Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	f00a49667d	control/controlclient: make Status.Persist a PersistView Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	4d330bac14	ipn/ipnlocal: add support for multiple user profiles Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	c9d6a9cb4d	ipn/ipnlocal: add optional TLS termination on proxied TCP connections Updates tailscale/corp#7515 Change-Id: Ib250fa20275971563adccfa72db48e0cec02b7a5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Pat Maddox	9bf3ef4167	ssh/tailssh: add Tailscale SSH (server) support on FreeBSD Change-Id: I607194b6ef99205e777f3df93a74ffe1a2e0344c Signed-off-by: Pat Maddox <pat@ratiopbc.com>	2 years ago
shayne	e3a66e4d2f	ipn/localapi: introduce get/set config for serve (#6243 ) Updates tailscale/corp#7515 Signed-off-by: Shayne Sweeney <shayne@tailscale.com>	2 years ago
Brad Fitzpatrick	7b5866ac0a	ipn/ipnlocal: support serving files/directories too Updates tailscale/corp#7515 Change-Id: I7b4c924005274ba57763264313d70d2a0c55da30 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	d7bfef12cf	ipn/ipnlocal: support https+insecure:// backend proxy targets Updates tailscale/corp#7515 Change-Id: Ie50295c09e4a16959b37087d8165c4d7360db37f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	9dfb0916c2	ipn/ipnlocal, tailcfg: wire up ingress peerapi Updates tailscale/corp#7515 Co-authored-by: Shayne Sweeney <shayne@tailscale.com> Change-Id: I7eac7b4ac37fd8e8a9e0469594c1e9e7dd0da666 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Aaron Klotz	73b8968404	ipn/ipnlocal: ensure Persist information is saved to server mode start state Numerous issues have been filed concerning an inability to install and run Tailscale headlessly in unattended mode, particularly after rebooting. The server mode `Prefs` stored in `server-state.conf` were not being updated with `Persist` state once the node had been succesfully logged in. Users have been working around this by finagling with the GUI to make it force a state rewrite. This patch makes that unnecessary by ensuring the required server mode state is updated when prefs are updated by the control client. Fixes https://github.com/tailscale/tailscale/issues/3186 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	2 years ago
Brad Fitzpatrick	32a4ff3e5f	ipn/ipnlocal: implement the reverse proxy HTTP handler type Updates tailscale/corp#7515 Change-Id: Icbfe57f44b9516388edc0556eb04a370a9e3e009 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	6beb3184d5	ipn/ipnlocal: don't serve a TLS cert unless it has webserver config Even if the name is right, or is configured on a different port. Updates tailscale/corp#7515 Change-Id: I8b721968f3241af10d98431e1b5ba075223e6cd3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	1a94c309ea	ipn/ipnlocal: support web TLS ports other than 443 Updates tailscale/corp#7515 Change-Id: I87df50b1bc92efd1d8c538c2ad4f1222361e4d6b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	4797bacb7c	ipn/ipnlocal: send RST when serving an actionless TCPPortHandler Updates tailscale/corp#7515 Change-Id: I790f1b5d1e8a887e39bb573b4610b8f37a3f5963 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	b683921b87	ipn/ipnlocal: add start of handling TCP proxying Updates tailscale/corp#7515 Change-Id: I82d19b5864674b2169f25ec8e429f60a543e0c57 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	4bccc02413	ipn/ipnlocal: use ServerConfig views internally Updates tailscale/corp#7515 Change-Id: Ica2bc44b92d281d5ce16cee55b7ca51c7910145c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	25e26c16ee	ipn/ipnlocal: start implementing web server bits of serve Updates tailscale/corp#7515 Change-Id: I96f4016161ba3c370492da941274c6d9a234c2bb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	df5e40f731	ipn: add WebServerConfig, add views cmd/viewer couldn't deal with that map-of-map. Add a wrapper type instead, which also gives us a place to add future stuff. Updates tailscale/corp#7515 Change-Id: I44a4ca1915300ea8678e5b0385056f0642ccb155 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	2daf0f146c	ipn/ipnlocal, wgengine/netstack: start handling ports for future serving Updates tailscale/corp#7515 Change-Id: I966e936e72a2ee99be8d0f5f16872b48cc150258 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	6d8320a6e9	ipn/{ipnlocal,localapi}: move most of cert.go to ipnlocal Leave only the HTTP/auth bits in localapi. Change-Id: I8e23fb417367f1e0e31483e2982c343ca74086ab Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	5bb7e0307c	cmd/tailscale, ipn/ipnlocal: add debug command to write to StateStore for dev Not for end users (unless directed by support). Mostly for ease of development for some upcoming webserver work. Change-Id: I43acfed217514567acb3312367b24d620e739f88 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	da8def8e13	all: remove old +build tags The //go:build syntax was introduced in Go 1.17: https://go.dev/doc/go1.17#build-lines gofmt has kept the +build and go:build lines in sync since then, but enough time has passed. Time to remove them. Done with: perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build') Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	6afe26575c	ipn: make Notify.Prefs be a *ipn.PrefsView It is currently a `ipn.PrefsView` which means when we do a JSON roundtrip, we go from an invalid Prefs to a valid one. This makes it a pointer, which fixes the JSON roundtrip. This was introduced in `0957bc5af2`. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	e55ae53169	tailcfg: add Node.UnsignedPeerAPIOnly to let server mark node as peerapi-only capver 48 Change-Id: I20b2fa81d61ef8cc8a84e5f2afeefb68832bd904 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Andrew Dunham	e975cb6b05	ipn/ipnlocal: fix test flake when we log after a test completes This switches from using an atomic.Bool to a mutex for reasons that are described in the commit, and should address the flakes that we're still seeing. Fixes #3020 Change-Id: I4e39471c0eb95886db03020ea1ccf688c7564a11 Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Tom DNetto	0af57fce4c	cmd/tailscale,ipn: implement lock sign command Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	910db02652	client/tailscale, tsnet, ipn/ipnlocal: prove nodekey ownership over noise Fixes #5972 Change-Id: Ic33a93d3613ac5dbf172d6a8a459ca06a7f9e547 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	d98305c537	cmd,ipn/ipnlocal,tailcfg: implement TKA disablement * Plumb disablement values through some of the internals of TKA enablement. * Transmit the node's TKA hash at the end of sync so the control plane understands each node's head. * Implement /machine/tka/disable RPC to actuate disablement on the control plane. There is a partner PR for the control server I'll send shortly. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Anton Tolchanov	193afe19cb	ipn/ipnlocal: add tags and a few other details to self status This makes tags, creation time, exit node option and primary routes for the current node exposed via `tailscale status --json` Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Mihai Parparita	4e6e3bd13d	ipn/ipnlocal: fix a log line having function pointers instead of values Followup to using ipn.PrefsView (#6031). Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Maisem Ali	2a9ba28def	ipn/ipnlocal: set prefs before calling tkaSyncIfNeeded Caught this in a test in a different repo. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	9f39c3b10f	ipn/ipnlocal: make EditPrefs strip private keys before returning Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	a2d15924fb	types/persist: add PublicNodeKey helper Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	0957bc5af2	ipn/ipnlocal: use ipn.PrefsView Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	def089f9c9	portlist: unexport all Poller fields, removing unused one, rework channels Poller.C and Poller.c were duplicated for one caller. Add an accessor returning the receive-only version instead. It'll inline. Poller.Err was unused. Remove. Then Poller is opaque. The channel usage and shutdown was a bit sketchy. Clean it up. And document some things. Change-Id: I5669e54f51a6a13492cf5485c83133bda7ea3ce9 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	9475801ebe	ipn/ipnlocal: fix E.G.G. port number accounting Change-Id: Id35461fdde79448372271ba54f6e6af586f2304d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	630bcb5b67	tsnet,client/tailscale: add APIClient which runs API over Noise. Updates tailscale/corp#4383 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Andrew Dunham	c32f9f5865	cmd/tailscale, ipn: enable debug logs when --report flag is passed to bugreport (#5830 ) Change-Id: Id22e9f4a2dcf35cecb9cd19dd844389e38c922ec Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Tom DNetto	a515fc517b	ipn/ipnlocal: make tkaSyncIfNeeded exclusive with a mutex Running corp/ipn#TestNetworkLockE2E has a 1/300 chance of failing, and deskchecking suggests thats whats happening are two netmaps are racing each other to be processed through tkaSyncIfNeededLocked. This happens in the first place because we release b.mu during network RPCs. To fix this, we make the tka sync logic an exclusive section, so two netmaps will need to wait for tka sync to complete serially (which is what we would want anyway, as the second run through probably wont need to sync). Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	227777154a	control/controlclient,ipn/ipnlocal,tailcfg: rotate node-key signature on register CAPVER 47 Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	6d76764f37	ipn/ipnlocal: fix taildrop target list UI bug The macOS and iOS apps that used the /localapi/v0/file-targets handler were getting too many candidate targets. They wouldn't actually accept the file. This is effectively just a UI glitch in the wrong hosts being listed as valid targets from the source side. Change-Id: I6907a5a1c3c66920e5ec71601c044e722e7cb888 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	a37ee8483f	ipn/ipnlocal: fix data race from missing lock in NetworkLockStatus Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	8602061f32	ipn/ipnlocal,tka: Fix bugs found by integration testing * tka.State.staticValidateCheckpoint could call methods on a contained key prior to calling StaticValidate on that key * Remove broken backoff / RPC retry logic from tka methods in ipn/ipnlocal, to be fixed at a later time * Fix NetworkLockModify() which would attempt to take b.mu twice and deadlock, remove now-unused dependence on netmap * Add methods on ipnlocal.LocalBackend to be used in integration tests * Use TAILSCALE_USE_WIP_CODE as the feature flag so it can be manipulated in tests Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	73db56af52	ipn/ipnlocal: filter peers with bad signatures when tka is enabled Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	1841d0bf98	wgengine/magicsock: make debug-level stuff not logged by default And add a CLI/localapi and c2n mechanism to enable it for a fixed amount of time. Updates #1548 Change-Id: I71674aaf959a9c6761ff33bbf4a417ffd42195a7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Mihai Parparita	8343b243e7	all: consistently initialize Logf when creating tsdial.Dialers Most visible when using tsnet.Server, but could have resulted in dropped messages in a few other places too. Fixes #5743 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Josh Soref	d4811f11a0	all: fix spelling mistakes Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>	2 years ago
Adrian Dewhurst	c581ce7b00	cmd/tailscale, client, ipn, tailcfg: add network lock modify command Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	2 years ago
Tom DNetto	58ffe928af	ipn/ipnlocal, tka: Implement TKA synchronization with the control plane Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	ebd1637e50	ipn/ipnlocal,tailcfg: Identify client using NodeKey in tka RPCs Updates https://github.com/tailscale/corp/pull/7024 Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	9bdf0cd8cd	ipn/ipnlocal: add c2n /debug/{goroutines,prefs,metrics} * and move goroutine scrubbing code to its own package for reuse * bump capver to 45 Change-Id: I9b4dfa5af44d2ecada6cc044cd1b5674ee427575 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Andrew Dunham	b1867457a6	doctor: add package for running in-depth healthchecks; use in bugreport (#5413 ) Change-Id: Iaa4e5b021a545447f319cfe8b3da2bd3e5e5782b Signed-off-by: Andrew Dunham <andrew@du.nham.ca>	2 years ago
Andrew Dunham	e1bdbfe710	tailcfg, control/controlhttp, control/controlclient: add ControlDialPlan field (#5648 ) * tailcfg, control/controlhttp, control/controlclient: add ControlDialPlan field This field allows the control server to provide explicit information about how to connect to it; useful if the client's link status can change after the initial connection, or if the DNS settings pushed by the control server break future connections. Change-Id: I720afe6289ec27d40a41b3dcb310ec45bd7e5f3e Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Maisem Ali	d5781f61a9	ipn/ipnlocal: return usernames when Tailscale SSH is enabled It was checking if the sshServer was initialized as a proxy, but that could either not have been initialized yet or Tailscale SSH could have been disabled after intialized. Also bump tailcfg.CurrentCapabilityVersion Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Tom DNetto	e9b98dd2e1	control/controlclient,ipn/ipnlocal: wire tka enable/disable Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Maisem Ali	054ef4de56	tailcfg: mark CapabilityFileSharingTarget as inter-node Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	d045462dfb	ipn/ipnlocal: add c2n method to get SSH username candidates For control to fetch a list of Tailscale SSH username candidates to filter against the Tailnet's SSH policy to present some valid candidates to a user. Updates #3802 Updates tailscale/corp#7007 Change-Id: I3dce57b7a35e66891d5e5572e13ae6ef3c898498 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	4a82b317b7	ipn/{ipnlocal,localapi}: use strs.CutPrefix, add more domain validation The GitHub CodeQL scanner flagged the localapi's cert domain usage as a problem because user input in the URL made it to disk stat checks. The domain is validated against the ipnstate.Status later, and only authenticated root/configured users can hit this, but add some paranoia anyway. Change-Id: I373ef23832f1d8b3a27208bc811b6588ae5a1ddd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Eng Zer Jun	f0347e841f	refactor: move from io/ioutil to io and os packages The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Reference: https://golang.org/doc/go1.16#ioutil Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>	2 years ago
Brad Fitzpatrick	74674b110d	envknob: support changing envknobs post-init Updates #5114 Change-Id: Ia423fc7486e1b3f3180a26308278be0086fae49b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	d34dd43562	ipn/ipnlocal: remove unused envknob Change-Id: I6d18af2c469eb660e6ca81d1dcc2af33c9e628aa Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Andrew Dunham	b8596f2a2f	net/dnsfallback: cache most recent DERP map on disk (#5545 ) This is especially helpful as we launch newer DERPs over time, and older clients have progressively out-of-date static DERP maps baked in. After this, as long as the client has successfully connected once, it'll cache the most recent DERP map it knows about. Resolves an in-code comment from @bradfitz Signed-off-by: Andrew Dunham <andrew@du.nham.ca>	2 years ago
Brad Fitzpatrick	ba3cc08b62	cmd/tailscale/cli: add backwards compatibility 'up' processing for legacy client Updates tailscale/corp#6781 Change-Id: I843fc810cbec0140d423d65db81e90179d6e0fa5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	be95aebabd	tka: implement credential signatures (key material delegation) This will be needed to support preauth-keys with network lock in the future, so getting the core mechanics out of the way now. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	761163815c	tailcfg: add Hostinfo.Userspace{,Router} bits Change-Id: Iad47f904872f2df146c1f63945f79cfddeac7fe8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	c66f99fcdc	tailcfg, control/controlclient, ipn/ipnlocal: add c2n (control-to-node) system This lets the control plane can make HTTP requests to nodes. Then we can use this for future things rather than slapping more stuff into MapResponse, etc. Change-Id: Ic802078c50d33653ae1f79d1e5257e7ade4408fd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Tom DNetto	79905a1162	tka: make storage a parameter rather than an Authority struct member Updates #5435 Based on the discussion in #5435, we can better support transactional data models by making the underlying storage layer a parameter (which can be specialized for the request) rather than a long-lived member of Authority. Now that Authority is just an instantaneous snapshot of state, we can do things like provide idempotent methods and make it cloneable, too. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Mihai Parparita	7a5cf39d0d	ipn/ipnlocal: fix Taildrop not returning any sharing targets The CapabilityFileSharingTarget capability added by `eb32847d85` is meant to control the ability to share with nodes not owned by the current user, not to restrict all sharing (the coordination server is not currently populating the capability at all) Fixes tailscale/corp#6669 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Tom DNetto	472529af38	tka: optimize common case of processing updates built from head Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	039def3b50	ipn,tailcfg: transmit NodeID in tka init RPCs Needed to identify the node. A serverside-check the machine key (used to authenticate the noise session) is that of the specified NodeID ensures the authenticity of the request. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	facafd8819	client,cmd/tailscale,ipn,tka,types: implement tka initialization flow This PR implements the client-side of initializing network-lock with the Coordination server. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Joe Tsai	32a1a3d1c0	util/deephash: avoid variadic argument for Update (#5372 ) Hashing []any is slow since hashing of interfaces is slow. Hashing of interfaces is slow since we pessimistically assume that cycles can occur through them and start cycle tracking. Drop the variadic signature of Update and fix callers to pass in an anonymous struct so that we are hashing concrete types near the root of the value tree. Signed-off-by: Joe Tsai <joetsai@digital-static.net> Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Brad Fitzpatrick	4ee64681ad	tailcfg, control/controlclient: make Debug settings sticky in a map session [capver 37] Fixes #4843 Change-Id: I3accfd91be474ac745cb47f5d6e866c37d5c5d2d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	486cc9393c	ipn/ipnlocal: fix log about local IPs when using exit nodes Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Maisem Ali	a9f6cd41fd	all: use syncs.AtomicValue Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	4950fe60bd	syncs, all: move to using Go's new atomic types instead of ours Fixes #5185 Change-Id: I850dd532559af78c3895e2924f8237ccc328449d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	9bb5a038e5	all: use atomic.Pointer Also add some missing docs. Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Tom DNetto	4001d0bf25	assorted: plumb tka initialization & network-lock key into tailscaled - A network-lock key is generated if it doesn't already exist, and stored in the StateStore. The public component is communicated to control during registration. - If TKA state exists on the filesystem, a tailnet key authority is initialized (but nothing is done with it for now). Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	5f6abcfa6f	all: migrate code from netaddr.FromStdAddr to Go 1.18 With caveat https://github.com/golang/go/issues/53607#issuecomment-1203466984 that then requires a new wrapper. But a simpler one at least. Updates #5162 Change-Id: I0a5265065bfcd7f21e8dd65b2bd74cae90d76090 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	eb32847d85	tailcfg: add CapabilityFileSharingTarget to identify FileTargets This adds the inverse to CapabilityFileSharingSend so that senders can identify who they can Taildrop to. Updates #2101 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Brad Fitzpatrick	116f55ff66	all: gofmt for Go 1.19 Updates #5210 Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	eae003e56f	ipn/ipnlocal: blend existing host SSH keys + newly-generated types as needed If the host only has RSA, use its RSA + generate ecdsa + ed25519, etc. Perhaps fixes https://twitter.com/colek42c/status/1550554439299244032 and something else that was reported. Change-Id: I88dc475c8e3d95b6f25288ff7664b8e72655fd16 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	a12aad6b47	all: convert more code to use net/netip directly perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.) perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. ) perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. ) goimports -w . Then delete some stuff from the net/netaddr shim package which is no longer neeed. Updates #5162 Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	6a396731eb	all: use various net/netip parse funcs directly Mechanical change with perl+goimports. Changed {Must,}Parse{IP,IPPrefix,IPPort} to their netip variants, then goimports -d . Finally, removed the net/netaddr wrappers, to prevent future use. Updates #5162 Change-Id: I59c0e38b5fbca5a935d701645789cddf3d7863ad Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	7eaf5e509f	net/netaddr: start migrating to net/netip via new netaddr adapter package Updates #5162 Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Denton Gentry	f85bb60eba	ipn/ipnlocal: prevent attempting to run SSH on QNAP for now tailscaled runs as a non-root user, SSH is not immediately working. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	2 years ago
Denton Gentry	d17849461c	ipn/{ipnserver,ipnlocal}: support incoming Taildrop on QNAP Signed-off-by: Denton Gentry <dgentry@tailscale.com>	2 years ago
Brad Fitzpatrick	ba91f57ddd	ipn/ipnlocal: ignore empty SSH host key files Change-Id: I332b0d7d01386111d0af4adf98c96c04d3d12fbb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	227c6b2a53	ipn/ipnlocal: flesh out error on ssh host key parse error Change-Id: Iedd2d3898befa536181036b9e9dea59bc777a440 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Maisem Ali	4d0461f721	ipn/ipnlocal: logout ephemeral nodes on shutdown Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
Mihai Parparita	ec649e707f	ipn/ipnlocal: prefer to use one CGNAT route on the Mac Together with `06aa141632` this minimizes the number of NEPacketTunnelNetworkSettings updates that we have to do, and thus avoids Chrome interrupting outstanding requests due to (perceived) network changes. Updates #3102 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Brad Fitzpatrick	aa37aece9c	ipn/ipnlocal, net/dns, util/cloudenv: add AWS DNS support And remove the GCP special-casing from ipn/ipnlocal; do it only in the forwarder for .internal. Fixes #4980 Fixes #4981 Change-Id: I5c481e96d91f3d51d274a80fbd37c38f16dfa5cb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	88c2afd1e3	ipn/ipnlocal, net/dns, util/cloudenv: specialize DNS config on Google Cloud This does three things: If you're on GCP, it adds a .internal DNS split route to the metadata server, so we never break GCP DNS names. This lets people have some Tailscale nodes on GCP and some not (e.g. laptops at home) without having to add a Tailnet-wide .internal DNS route. If you already have such a route, though, it won't overwrite it. * If the 100.100.100.100 DNS forwarder has nowhere to forward to, it forwards it to the GCP metadata IP, which forwards to 8.8.8.8. This means there are never errNoUpstreams ("upstream nameservers not set") errors on GCP due to e.g. mangled /etc/resolv.conf (GCP default VMs don't have systemd-resolved, so it's likely a DNS supremacy fight) * makes the DNS fallback mechanism use the GCP metadata IP as a fallback before our hosted HTTP-based fallbacks I created a default GCP VM from their web wizard. It has no systemd-resolved. I then made its /etc/resolv.conf be empty and deleted its GCP hostnames in /etc/hosts. I then logged in to a tailnet with no global DNS settings. With this, tailscaled writes /etc/resolv.conf (direct mode, as no systemd-resolved) and sets it to 100.100.100.100, which then has regular DNS via the metadata IP and .internal DNS via the metadata IP as well. If the tailnet configures explicit DNS servers, those are used instead, except for .internal. This also adds a new util/cloudenv package based on version/distro where the cloud type is only detected once. We'll likely expand it in the future for other clouds, doing variants of this change for other popular cloud environments. Fixes #4911 RELNOTES=Google Cloud DNS improvements Change-Id: I19f3c2075983669b2b2c0f29a548da8de373c7cf Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	87a4c75fd4	control/controlclient, ipn/ipnlocal: remove Client.SetExpirySooner, fix race Client.SetExpirySooner isn't part of the state machine. Remove it from the Client interface. And fix a use of LocalBackend.cc without acquiring the lock that guards that field. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	ef0d740270	control/controlclient: remove Client.SetStatusFunc It can't change at runtime. Make it an option. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	70a2797064	control/controlclient, ipn/ipnlocal: remove some Client methods Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	a1e429f7c3	control/controlclient, types/netmap: remove unused LocalPort field Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Brad Fitzpatrick	467eb2eca0	cmd/tailscale/cli, ipn/ipnlocal: give SSH tips when off/unconfigured Updates #3802 Change-Id: I6b9a3175f68a6daa670f912561f2c2ececc07770 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Praneet Loke	d8c05fc1b2	Update a Taildrop error message (#4818 ) ipn/ipnlocal: update error message on Taildrop send while not connected Signed-off-by: Praneet <1466314+praneetloke@users.noreply.github.com>	3 years ago
Melanie Warrick	3a182d5dd6	ipn/ipnstate: add ExitNodeStatus to share the exit node if it is in use, the IP, ID and whether its online. (#4761 ) - Updates #4619 Signed-off-by: nyghtowl <warrick@tailscale.com>	3 years ago
Mihai Parparita	27a1ad6a70	wasm: exclude code that's not used on iOS for Wasm too It has similar size constraints. Saves ~1.9MB from the Wasm build. Updates #3157 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	3 years ago
Brad Fitzpatrick	4007601f73	cmd/controlclient: wire up PingRequest peerapi pings too Updates tailscale/corp#754 Change-Id: I61ac3fc44783b54bd02455bcb0baf19159b7a9d2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	fbc079d82d	ipn/ipnlocal: prevent attempting to run SSH on Synology for now On DSM7 as a non-root user it'll run into problems. And we haven't tested on DSM6, even though it might work, but I doubt it. Updates #3802 Updates tailscale/corp#5468 Change-Id: I75729042e4788f03f9eb82057482a44b319f04f3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Jordan Whited	43f9c25fd2	cmd/tailscale: surface authentication errors in status.Health (#4748 ) Fixes #3713 Signed-off-by: Jordan Whited <jordan@tailscale.com>	3 years ago
Maisem Ali	928530a112	ipn/ipnlocal: shutdown sshServer on tailscale down Also lazify SSHServer initialization to allow restarting the server on a subsequent `tailscale up` Updates #3802 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	4d85cf586b	cmd/tailscale, ipn/ipnlocal: add "peerapi" ping type For debugging when stuff like #4750 isn't working. RELNOTE=tailscale ping -peerapi Change-Id: I9c52c90fb046e3ab7d2b121387073319fbf27b99 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	7cd8c3e839	ssh/tailssh: terminate sessions when tailscaled shutsdown Ideally we would re-establish these sessions when tailscaled comes back up, however we do not do that yet so this is better than leaking the sessions. Updates #3802 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	da601c23e1	ipn/ipnlocal: add missing place where we set the SSH atomic This fixes the "tailscale up --authkey=... --ssh" path (or any "up" path that used Start instead of EditPrefs) which wasn't setting the bit. Updates #3802 Change-Id: Ifca532ec58296fedcedb5582312dfee884367ed7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	fd99c54e10	tailcfg,all: change structs to []*dnstype.Resolver Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	35111061e9	wgengine/netstack, ipn/ipnlocal: serve http://100.100.100.100/ For future stuff. Change-Id: I64615b8b2ab50b57e4eef1ca66fa72e3458cb4a9 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3e1f2d01f7	ipn/ipnlocal: move Ping method from IPN bus to LocalBackend (HTTP) Change-Id: I61759f1dae8d9d446353db54c8b1e13bfffb3287 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	c60cbca371	control/controlclient: store netinfo and hostinfo separately Currently, when SetNetInfo is called it sets the value on hostinfo.NetInfo. However, when SetHostInfo is called it overwrites the hostinfo field which may mean it also clears out the NetInfo it had just received. This commit stores NetInfo separately and combines it into Hostinfo as needed so that control is always notified of the latest values. Also, remove unused copies of Hostinfo from ipn.Status and controlclient.Auto. Updates #tailscale/corp#4824 (maybe fixes) Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
James Tucker	ae483d3446	wgengine, net/packet, cmd/tailscale: add ICMP echo Updates tailscale/corp#754 Signed-off-by: James Tucker <james@tailscale.com>	3 years ago
Tom DNetto	9dee6adfab	cmd/tailscaled,ipn/ipnlocal,wgengine/...: pass dns.Manager into netstack Needed for a following commit which moves magicDNS handling into netstack. Signed-off-by: Tom DNetto <tom@tailscale.com>	3 years ago
Maisem Ali	3012a2e1ca	ssh/tailssh,ipn/ipnlocal: terminate any active sessions on `up --ssh=false` Currently the ssh session isn't terminated cleanly, instead the packets are just are no longer routed to the in-proc SSH server. This makes it so that clients get a disconnection when the `RunSSH` pref changes to `false`. Updates #3802 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Mihai Parparita	2ec371fe8b	ipn: remove FakeExpireAfter Backend function No callers remain (last one was removed with tailscale/corp@1c095ae08f), and it's pretty esoteric. Signed-off-by: Mihai Parparita <mihai@tailscale.com>	3 years ago
Mihai Parparita	316523cc1e	ipn: remove enforceDefaults option from PrefsFromBytes The Mac client was using it, but it had the effect of the `RouteAll` ("Use Tailscale subnets") pref always being enabled at startup, regardless of the persisted value. enforceDefaults was added to handle cases from ~2 years ago where we ended up with persisted `"RouteAll": false` values in the keychain, but that should no longer be a concern. New users will get the default of it being enabled via `NewPrefs`. There will be a corresponding Mac client change to stop passing in enforceDefaults. For #3962 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	3 years ago
Maisem Ali	5a1ef1bbb9	net/tsdial: add SystemDial as a wrapper on netns.Dial The connections returned from SystemDial are automatically closed when there is a major link change. Also plumb through the dialer to the noise client so that connections are auto-reset when moving from cellular to WiFi etc. Updates #3363 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Maisem Ali	637cc1b5fc	ipn/ipnlocal/peerapi: add endpoint to list local interfaces Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	c88506caa6	ipn/ipnlocal: add Wake-on-LAN function to peerapi No CLI support yet. Just the curl'able version if you know the peerapi port. (like via a TSMP ping) Updates #306 Change-Id: I0662ba6530f7ab58d0ddb24e3664167fcd1c4bcf Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	1a19aed410	ipn/ipnlocal: do not initialize peer api listeners when shutting down Updates tailscale/corp#4824 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	7a097ccc83	ipn/ipnlocal: close peerapi listeners on LocalBackend.Shutdown For tests. Now that we can always listen (whereas we used to fail prior to `a2c330c496`), some goroutine leak checks were failing in tests in another repo after that change. Change-Id: Id95a4b71167eca61962a48616d79741b9991e0bc Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a2c330c496	ipn/ipnlocal: use the fake peerapi listener as fallback if netstack available The previous commit (`1b89662eff`) this for Android, but we can also use this on any platform if we we would otherwise fail. Change-Id: I4cd78b40e9e77fca5cc8e717dd48ac173101bed4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	1b89662eff	ipn/ipnlocal: make peerapi listener on Android avoid the kernel We intercept the peerapi port in netstack anyway, so there's no reason the linux kernel on Android needs to know about it. It's only getting in the way and causing problems for reasons we don't fully understand. But we don't even need to understand it because it's not relevant anymore. Instead, provide a dummy net.Listener that just sits and blocks to pacify the rest of the code that assumes it can be stuck in a Listener.Accept call and call Listener.Close and Listener.Addr. We'll likely do this for all platforms in the future, if/when we also link in netstack on iOS. Updates #4449 Updates #4293 Updates #3986 Change-Id: Ic2d3fe2f3cee60fc527356a3368830f17aeb75ae Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	8b81254992	ipn/ipnlocal: reject tailscale up --ssh if disabled on tailnet Updates #3802 Change-Id: I3f1e839391fe9b28270f506f4bb8d8e3d36716f5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	cc575fe4d6	net/dns: schedule DoH upgrade explicitly, fix Resolver.Addr confusion Two changes in one: * make DoH upgrades an explicitly scheduled send earlier, when we come up with the resolvers-and-delay send plan. Previously we were getting e.g. four Google DNS IPs and then spreading them out in time (for back when we only did UDP) but then later we added DoH upgrading at the UDP packet layer, which resulted in sometimes multiple DoH queries to the same provider running (each doing happy eyeballs dialing to 4x IPs themselves) for each of the 4 source IPs. Instead, take those 4 Google/Cloudflare IPs and schedule 5 things: first the DoH query (which can use all 4 IPs), and then each of the 4 IPs as UDP later. * clean up the dnstype.Resolver.Addr confusion; half the code was using it as an IP string (as documented) as half was using it as an IP:port (from some prior type we used), primarily for tests. Instead, document it was being primarily an IP string but also accepting an IP:port for tests, then add an accessor method on it to get the IPPort and use that consistently everywhere. Change-Id: Ifdd72b9e45433a5b9c029194d50db2b9f9217b53 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	a04eebf59f	ipn/ipnlocal: also use SSHPolicies when updating filterHash Updates #3802 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	e96dd00652	ipn/ipnlocal: add capability for debugging peers over peerapi The default is still users can debug their own nodes. But like `cd916b728b` did, this adds support for admins to grant additional capabilities with the new tailcfg.CapabilityDebugPeer cap. Updates #4217 Change-Id: Ifce3d9a1f8e8845797970a4f97b393194663d35f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	8f5e5bff1e	cmd/tailscale, etc: make "tailscale up --ssh" fail fast when unavailable Fail on unsupported platforms (must be Linux or macOS tailscaled with WIP env) or when disabled by admin (with TS_DISABLE_SSH_SERVER=1) Updates #3802 Change-Id: I5ba191ed0d8ba4ddabe9b8fc1c6a0ead8754b286 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ade7bd8745	ssh/tailssh: close sessions on policy change if no longer allowed Updates #3802 Change-Id: I98503c2505b77ac9d0cc792614fcdb691761a70c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	4ec83fbad6	ipn/ipnlocal: only call updateFilter with mutex held And rename to updateFilterLocked to prevent future mistakes. Fixes #4427 Change-Id: I4d37b90027d5ff872a339ce8180f5723704848dc Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	cd916b728b	ipn/ipnlocal: add start of inter-user Taildrop Controlled by server-sent capability policy. To be initially used for SSH servers to record sessions to other nodes. Not yet productized into something user-accessible. (Notably, the list of Taildrop targets from the sender side isn't augmented yet.) This purely permits expanding the set of expands a node will accept a drop from. Updates #3802 Updates #4217 Change-Id: Id7a5bccd686490f8ef2cdc7dae7c07c440dc0085 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	16f3520089	all: add arbitrary capability support Updates #4217 RELNOTE=start of WhoIsResponse capability support Change-Id: I6522998a911fe49e2f003077dad6164c017eed9b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	8ee044ea4a	ssh/tailssh: make the SSH server a singleton, register with LocalBackend Remove the weird netstack -> tailssh dependency and instead have tailssh register itself with ipnlocal when linked. This makes tailssh.server a singleton, so we can have a global map of all sessions. Updates #3802 Change-Id: Iad5caec3a26a33011796878ab66b8e7b49339f29 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	df9ce972c7	tailcfg, ipn/ipnlocal: add debug flag to enable one-big-CGNAT/10 route To experiment with avoiding Chrome ERR_NETWORK_CHANGED errors on route changes. Updates #3102 Change-Id: I339da14c684fdac45ac261566aa21bf2198672ff Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	50b4b8b2c6	ipn/ipnlocal: make peerIPs return a sorted slice Currently peerIPs doesn't do any sorting of the routes it returns. This is typically fine, however imagine the case of an HA subnet router failover. When a route R moves from peer A to peer B, the output of peerIPs changes. This in turn causes all the deephash check inside wgengine to fail as the hashed value of [R1, R2] is different than the hashed value of [R2, R1]. When the hash check failes, it causes wgengine to reconfigure all routes in the OS. This is especially problematic for macOS and iOS where we use the NetworkExtension. This commit makes it that the peerIPs are always sorted when returned, thus making the hash be consistent as long as the list of routes remains static. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	3ae701f0eb	net/tsaddr, wgengine/netstack: add IPv6 range that forwards to site-relative IPv4 This defines a new magic IPv6 prefix, fd7a:115c:a1e0:b1a::/64, a subset of our existing /48, where the final 32 bits are an IPv4 address, and the middle 32 bits are a user-chosen "site ID". (which must currently be 0000:00xx; the top 3 bytes must be zero for now) e.g., I can say my home LAN's "site ID" is "0000:00bb" and then advertise its 10.2.0.0/16 IPv4 range via IPv6, like: tailscale up --advertise-routes=fd7a:115c:a1e0:b1a::bb:10.2.0.0/112 (112 being /128 minuse the /96 v6 prefix length) Then people in my tailnet can: $ curl '[fd7a:115c:a1e0:b1a::bb:10.2.0.230]' <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" .... Updates #3616, etc RELNOTE=initial support for TS IPv6 addresses to route v4 "via" specific nodes Change-Id: I9b49b6ad10410a24b5866b9fbc69d3cae1f600ef Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	309ddef852	net/netutil: add CheckIPForwardingLinux (#4301 ) Combine the code between `LocalBackend.CheckIPForwarding` and `controlclient.ipForwardingBroken`. Fixes #4300 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	5a44f9f5b5	tempfork: temporarily fork gliderlabs/ssh and x/crypto/ssh While we rearrange/upstream things. gliderlabs/ssh is forked into tempfork from our prior fork at `be8b7add40` x/crypto/ssh OTOH is forked at https://github.com/tailscale/golang-x-crypto because it was gnarlier to vendor with various internal packages, etc. Its git history shows where it starts (2c7772ba30643b7a2026cbea938420dce7c6384d). Updates #3802 Change-Id: I546e5cdf831cfc030a6c42557c0ad2c58766c65f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	6fecc16c3b	ipn/ipnlocal: do not process old status messages received out of order When `setWgengineStatus` is invoked concurrently from multiple goroutines, it is possible that the call invoked with a newer status is processed before a call with an older status. e.g. a status that has endpoints might be followed by a status without endpoints. This causes unnecessary work in the engine and can result in packet loss. This patch adds an `AsOf time.Time` field to the status to specifiy when the status was calculated, which later allows `setWgengineStatus` to ignore any status messages it receives that are older than the one it has already processed. Updates tailscale/corp#2579 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago

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543 Commits (71029cea2ddf82007b80f465b256d027eab0f02d)