1231 Commits (de2af54ffcf22e995c9e09f32a7ef14c6906a5ac)

Author	SHA1	Message	Date
Will Norris	6b956b49e0	client/web: add some security checks for full client ... Require that requests to servers in manage mode are made to the Tailscale IP (either ipv4 or ipv6) or quad-100. Also set various security headers on those responses. These might be too restrictive, but we can relax them as needed. Allow requests to /ok (even in manage mode) with no checks. This will be used for the connectivity check from a login client to see if the management client is reachable. Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
Aaron Klotz	fbc18410ad	ipn/ipnauth: improve the Windows token administrator check ... (*Token).IsAdministrator is supposed to return true even when the user is running with a UAC limited token. The idea is that, for the purposes of this check, we don't care whether the user is *currently* running with full Admin rights, we just want to know whether the user can *potentially* do so. We accomplish this by querying for the token's "linked token," which should be the fully-elevated variant, and checking its group memberships. We also switch ipn/ipnserver/(*Server).connIsLocalAdmin to use the elevation check to preserve those semantics for tailscale serve; I want the IsAdministrator check to be used for less sensitive things like toggling auto-update on and off. Fixes #10036 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	1 year ago
Will Norris	658971d7c0	ipn/ipnlocal: serve web client on quad100 if enabled ... if the user pref and nodecap for the new web client are enabled, serve the client over requests to 100.100.100.100. Today, that is just a static page that lists the local Tailcale IP addresses. For now, this will render the readonly full management client, with an "access" button that sends the user through check mode. After completing check mode, they will still be in the read-only view, since they are not accessing the client over Tailscale. Instead, quad100 should serve the lobby client that has a "manage" button that will open the management client on the Tailscale IP (and trigger check mode). That is something we'll fix in a subsequent PR in the web client code itself. Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
Sonia Appasamy	0ecfc1d5c3	client/web: fill devMode from an env var ... Avoids the need to pipe a web client dev flag through the tailscaled command. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Andrew Lytvynov	f0bc95a066	ipn/localapi: make serveTKASign require write permission (#10094) ... The existing read permission check looks like an oversight. Write seems more appropriate for sining new nodes. Updates https://github.com/tailscale/corp/issues/15506 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Sonia Appasamy	191e2ce719	client/web: add ServerMode to web.Server ... Adds a new Mode to the web server, indicating the specific scenario the constructed server is intended to be run in. Also starts filling this from the cli/web and ipn/ipnlocal callers. From cli/web this gets filled conditionally based on whether the preview web client node cap is set. If not set, the existing "legacy" client is served. If set, both a login/lobby and full management client are started (in "login" and "manage" modes respectively). Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
James Tucker	f27b2cf569	appc,cmd/sniproxy,ipn/ipnlocal: split sniproxy configuration code out of appc ... The design changed during integration and testing, resulting in the earlier implementation growing in the appc package to be intended now only for the sniproxy implementation. That code is moved to it's final location, and the current App Connector code is now renamed. Updates tailscale/corp#15437 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Sonia Appasamy	aa5af06165	ipn/ipnlocal: include web client port in setTCPPortsIntercepted ... Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Sonia Appasamy	da31ce3a64	ipn/localapi: remove webclient endpoint ... Managing starting/stopping tailscaled web client purely via setting the RunWebClient pref. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Sonia Appasamy	b370274b29	ipn/ipnlocal: pull CapabilityPreviewWebClient into webClientAtomicBool ... Now uses webClientAtomicBool as the source of truth for whether the web client should be running in tailscaled, with it updated when either the RunWebClient pref or CapabilityPreviewWebClient node capability changes. This avoids requiring holding the LocalBackend lock on each call to ShouldRunWebClient to check for the CapabilityPreviewWebClient value. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Andrew Lytvynov	c6a4612915	ipn/localapi: require Write access on /watch-ipn-bus with private keys (#10059) ... Clients optionally request private key filtering. If they don't, we should require Write access for the user. Updates https://github.com/tailscale/corp/issues/15506 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
James Tucker	228a82f178	ipn/ipnlocal,tailcfg: add AppConnector service to HostInfo when configured ... Updates tailscale/corp#15437 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
James Tucker	6ad54fed00	appc,ipn/ipnlocal: add App Connector domain configuration from mapcap ... The AppConnector is now configured by the mapcap from the control plane. Updates tailscale/corp#15437 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
James Tucker	b48b7d82d0	appc,ipn/ipnlocal,net/dns/resolver: add App Connector wiring when enabled in prefs ... An EmbeddedAppConnector is added that when configured observes DNS responses from the PeerAPI. If a response is found matching a configured domain, routes are advertised when necessary. The wiring from a configuration in the netmap capmap is not yet done, so while the connector can be enabled, no domains can yet be added. Updates tailscale/corp#15437 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Will Norris	e7482f0df0	ipn/ipnlocal: prevent deadlock on WebClientShutdown ... WebClientShutdown tries to acquire the b.mu lock, so run it in a go routine so that it can finish shutdown after setPrefsLockedOnEntry is finished. This is the same reason b.sshServer.Shutdown is run in a go routine. Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
James Tucker	0ee4573a41	ipn/ipnlocal: fix small typo ... Updates #cleanup Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
James Tucker	ca4c940a4d	ipn: introduce app connector advertisement preference and flags ... Introduce a preference structure to store the setting for app connector advertisement. Introduce the associated flags: tailscale up --advertise-connector{=true,=false} tailscale set --advertise-connector{=true,=false} ``` % tailscale set --advertise-connector=false % tailscale debug prefs | jq .AppConnector.Advertise false % tailscale set --advertise-connector=true % tailscale debug prefs | jq .AppConnector.Advertise true % tailscale up --advertise-connector=false % tailscale debug prefs | jq .AppConnector.Advertise false % tailscale up --advertise-connector=true % tailscale debug prefs | jq .AppConnector.Advertise true ``` Updates tailscale/corp#15437 Signed-off-by: James Tucker <james@tailscale.com>	1 year ago
Will Norris	66c7af3dd3	ipn: replace web client debug flag with node capability ... Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
Sonia Appasamy	44175653dc	ipn/ipnlocal: rename web fields/structs to webClient ... For consistency and clarity around what the LocalBackend.web field is used for. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Will Norris	ea599b018c	ipn: serve web client requests from LocalBackend ... instead of starting a separate server listening on a particular port, use the TCPHandlerForDst method to intercept requests for the special web client port (currently 5252, probably configurable later). Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
Will Norris	28ad910840	ipn: add user pref for running web client ... This is not currently exposed as a user-settable preference through `tailscale up` or `tailscale set`. Instead, the preference is set when turning the web client on and off via localapi. In a subsequent commit, the pref will be used to automatically start the web client on startup when appropriate. Updates tailscale/corp#14335 Signed-off-by: Will Norris <will@tailscale.com>	1 year ago
Sonia Appasamy	89953b015b	ipn/ipnlocal,client/web: add web client to tailscaled ... Allows for serving the web interface from tailscaled, with the ability to start and stop the server via localapi endpoints (/web/start and /web/stop). This will be used to run the new full management web client, which will only be accessible over Tailscale (with an extra auth check step over noise) from the daemon. This switch also allows us to run the web interface as a long-lived service in environments where the CLI version is restricted to CGI, allowing us to manage certain auth state in memory. ipn/ipnlocal/web is stubbed out in ipn/ipnlocal/web_stub for ios builds to satisfy ios restriction from adding "text/template" and "html/template" dependencies. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Andrea Gottardo	95715c4a12	ipn/localapi: add endpoint to handle APNS payloads (#9972) ... * ipn/localapi: add endpoint to handle APNS payloads Fixes #9971. This adds a new `handle-push-message` local API endpoint. When an APNS payload is delivered to the main app, this endpoint can be used to forward the JSON body of the message to the backend, making a POST request. cc @bradfitz Signed-off-by: Andrea Gottardo <andrea@tailscale.com> * Address comments from code review Signed-off-by: Andrea Gottardo <andrea@tailscale.com> --------- Signed-off-by: Andrea Gottardo <andrea@tailscale.com>	1 year ago
Rhea Ghosh	387a98fe28	ipn/ipnlocal: exclude tvOS devices from taildrop file targets (#10002)	1 year ago
Tyler Smalley	baa1fd976e	ipn/localapi: require local Windows admin to set serve path (#9969) ... For a serve config with a path handler, ensure the caller is a local administrator on Windows. updates #8489 Signed-off-by: Tyler Smalley <tyler@tailscale.com>	1 year ago
Aaron Klotz	95671b71a6	ipn, safesocket: use Windows token in LocalAPI ... On Windows, the idiomatic way to check access on a named pipe is for the server to impersonate the client on its current OS thread, perform access checks using the client's access token, and then revert the OS thread's access token back to its true self. The access token is a better representation of the client's rights than just a username/userid check, as it represents the client's effective rights at connection time, which might differ from their normal rights. This patch updates safesocket to do the aforementioned impersonation, extract the token handle, and then revert the impersonation. We retain the token handle for the remaining duration of the connection (the token continues to be valid even after we have reverted back to self). Since the token is a property of the connection, I changed ipnauth to wrap the concrete net.Conn to include the token. I then plumbed that change through ipnlocal, ipnserver, and localapi as necessary. I also added a PermitLocalAdmin flag to the localapi Handler which I intend to use for controlling access to a few new localapi endpoints intended for configuring auto-update. Updates https://github.com/tailscale/tailscale/issues/755 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	1 year ago
Andrea Gottardo	741d7bcefe	Revert "ipn/ipnlocal: add new DNS and subnet router policies" (#9962) ... This reverts commit 32194cdc70. Signed-off-by: Nick O'Neill <nick@tailscale.com>	1 year ago
Adrian Dewhurst	32194cdc70	ipn/ipnlocal: add new DNS and subnet router policies ... In addition to the new policy keys for the new options, some already-in-use but missing policy keys are also being added to util/syspolicy. Updates ENG-2133 Change-Id: Iad08ca47f839ea6a65f81b76b4f9ef21183ebdc6 Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	1 year ago
Andrew Lytvynov	593c086866	clientupdate: distinguish when auto-updates are possible (#9896) ... clientupdate.Updater will have a non-nil Update func in a few cases where it doesn't actually perform an update: * on Arch-like distros, where it prints instructions on how to update * on macOS app store version, where it opens the app store page Add a new clientupdate.Arguments field to cause NewUpdater to fail when we hit one of these cases. This results in c2n updates being "not supported" and `tailscale set --auto-update` returning an error. Updates #755 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Maisem Ali	17b2072b72	ipn/ipnlocal: set the push device token correctly ... It would end up resetting whatever hostinfo we had constructed and leave the backend statemachine in a broken state. This fixes that by storing the PushDeviceToken on the LocalBackend and populating it on Hostinfo before passing it to controlclient. Updates tailscale/corp#8940 Updates tailscale/corp#15367 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	0e89245c0f	ipn/ipnlocal: drop hostinfo param from doSetHostinfoFilterServices ... The value being passed was the same as whats on b.hostinfo, so just use that directly. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Joe Tsai	152390e80a	ipn/localapi: avoid unkeyed literal (#9933) ... Go has no way to explicitly identify Go struct as effectively a tuple, so staticcheck assumes any external use of unkeyed literals is wrong. Updates #cleanup Signed-off-by: Joe Tsai <joetsai@digital-static.net>	1 year ago
Maisem Ali	f398712c00	ipn/ipnlocal: prevent changing serve config if conf.Locked ... This adds a check to prevent changes to ServeConfig if tailscaled is run with a Locked config. Missed in 1fc3573446. Updates #1412 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Sonia Appasamy	68da15516f	ipn/localapi,client/web: clean up auth error handling ... This commit makes two changes to the web client auth flow error handling: 1. Properly passes back the error code from the noise request from the localapi. Previously we were using io.Copy, which was always setting a 200 response status code. 2. Clean up web client browser sessions on any /wait endpoint error. This avoids the user getting in a stuck state if something goes wrong with their auth path. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Irbe Krumina	eced054796	ipn/ipnlocal: close connections for removed proxy transports (#9884) ... Ensure that when a userspace proxy config is reloaded, connections for any removed proxies are safely closed Updates tailscale/tailscale#9725 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	1 year ago
Andrew Lytvynov	25b6974219	ipn/ipnlocal: send ClientVersion to Apple frontends (#9887) ... Apple frontends will now understand this Notify field and handle it. Updates #755 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Irbe Krumina	f09cb45f9d	ipn/ipnlocal: initiate proxy transport once (#9883) ... Initiates http/h2c transport for userspace proxy backend lazily and at most once. Updates tailscale/tailscale#9725 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	1 year ago
Sonia Appasamy	73bbf941f8	client/web: hook up auth flow ... Connects serveTailscaleAuth to the localapi webclient endpoint and pipes auth URLs and session cookies back to the browser to redirect users from the frontend. All behind debug flags for now. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago
Irbe Krumina	09b5bb3e55	ipn/ipnlocal: proxy gRPC requests over h2c if needed. (#9847) ... Updates userspace proxy to detect plaintext grpc requests using the preconfigured host prefix and request's content type header and ensure that these will be proxied over h2c. Updates tailscale/tailscale#9725 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	1 year ago
Joe Tsai	3f27087e9d	taildrop: switch hashing to be streaming based (#9861) ... While the previous logic was correct, it did not perform well. Resuming is a dance between the client and server, where 1. the client requests hashes for a partial file, 2. the server then computes those hashes, 3. the client computes hashes locally and compares them. 4. goto 1 while the partial file still has data While step 2 is running, the client is sitting idle. While step 3 is running, the server is sitting idle. By streaming over the block hash immediately after the server computes it, the client can start checking the hash, while the server works on the next hash (in a pipelined manner). This performs dramatically better and also uses less memory as we don't need to hold a list of hashes, but only need to handle one hash at a time. There are two detriments to this approach: * The HTTP API relies on a JSON stream, which is not a standard REST-like pattern. However, since we implement both client and server, this is fine. * While the stream is on-going, we hold an open file handle on the server side while the file is being hashed. On really slow streams, this could hold a file open forever. Updates tailscale/corp#14772 Signed-off-by: Joe Tsai <joetsai@digital-static.net> Co-authored-by: Rhea Ghosh <rhea@tailscale.com>	1 year ago
Joe Tsai	7971333603	ipn: fix localapi and peerapi protocol for taildrop resume (#9860) ... Minor fixes: * The branch for listing or hashing partial files was inverted. * The host for peerapi call needs to be real (rather than bogus). * Handle remote peers that don't support resuming. * Make resume failures non-fatal (since we can still continue). This was tested locally, end-to-end system test is future work. Updates tailscale/corp#14772 Signed-off-by: Joe Tsai <joetsai@digital-static.net> Co-authored-by: Rhea Ghosh <rhea@tailscale.com>	1 year ago
Andrew Lytvynov	77127a2494	clientupdate: fix background install for linux tarballs (#9852) ... Two bug fixes: 1. when tailscale update is executed as root, `os.UserCacheDir` may return an error because `$XDG_CACHE_HOME` and `$HOME` are not set; fallback to `os.TempDir` in those cases 2. on some weird distros (like my EndeavourOS), `/usr/sbin` is just a symlink to `/usr/bin`; when we resolve `tailscale` binary path from `tailscaled`, allow `tailscaled` to be in either directory Updates #755 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Joe Tsai	c2a551469c	taildrop: implement asynchronous file deletion (#9844) ... File resumption requires keeping partial files around for some time, but we must still eventually delete them if never resumed. Thus, we implement asynchronous file deletion, which could spawn a background goroutine to delete the files. We also use the same mechanism for deleting files on Windows, where a file can't be deleted if there is still an open file handle. We can enqueue those with the asynchronous file deleter as well. Updates tailscale/corp#14772 Signed-off-by: Joe Tsai <joetsai@digital-static.net>	1 year ago
Brad Fitzpatrick	1fc3573446	ipn/{conffile,ipnlocal}: start booting tailscaled from a config file w/ auth key ... Updates #1412 Change-Id: Icd880035a31df59797b8379f4af19da5c4c453e2 Co-authored-by: Maisem Ali <maisem@tailscale.com> Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Rhea Ghosh	9d3c6bf52e	ipn/ipnlocal/peerapi: refactoring taildrop to just one endpoint (#9832) ... Updates #14772 Signed-off-by: Rhea Ghosh <rhea@tailscale.com>	1 year ago
Andrew Lytvynov	b949e208bb	ipn/ipnlocal: fix AllowsUpdate disable after enable (#9827) ... The old code would always retain value `true` if it was set once, even if you then change `prefs.AutoUpdate.Apply` to `false`. Instead of using the previous value, use the default (envknob) value to OR with. Updates #755 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Brad Fitzpatrick	18bd98d35b	cmd/tailscaled,*: add start of configuration file support ... Updates #1412 Co-authored-by: Maisem Ali <maisem@tailscale.com> Change-Id: I38d559c1784d09fc804f521986c9b4b548718f7d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Rhea Ghosh	71271e41d6	ipn/{ipnlocal/peerapi, localapi} initial taildrop resume api plumbing (#9798) ... This change: * adds a partial files peerAPI endpoint to get a list of partial files * adds a helper function to extract the basename of a file * updates the peer put peerAPI endpoint * updates the file put localapi endpoint to allow resume functionality Updates #14772 Signed-off-by: Rhea Ghosh <rhea@tailscale.com>	1 year ago
Andrew Lytvynov	8a5b02133d	clientupdate: return ErrUnsupported for macSys clients (#9793) ... The Sparkle-based update is not quite working yet. Make `NewUpdater` return `ErrUnsupported` for it to avoid the proliferation of exceptions up the stack. Updates #755 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Sonia Appasamy	feabb34ea0	ipn/localapi: add debug-web-client endpoint ... Debug endpoint for the web client's auth flow to talk back to the control server. Restricted behind a feature flag on control. We will either be removing this debug endpoint, or renaming it before launching the web client updates. Updates tailscale/corp#14335 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	1 year ago