tailscale

Commit Graph

Author	SHA1	Message	Date
Andrew Dunham	223126fe5b	cmd/derper, net/netcheck: add challenge/response to generate_204 endpoint The Lufthansa in-flight wifi generates a synthetic 204 response to the DERP server's /generate_204 endpoint. This PR adds a basic challenge/response to the endpoint; something sufficiently complicated that it's unlikely to be implemented by a captive portal. We can then check for the expected response to verify whether we're being MITM'd. Follow-up to #5601 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I94a68c9a16a7be7290200eea6a549b64f02ff48f	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
Andrew Dunham	eb5939289c	cmd/derper: add /generate_204 endpoint (#5601 ) For captive portal detection. Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Brad Fitzpatrick	89fee056d3	cmd/derper: add robots.txt to disallow all Fixes #5565 Change-Id: I5626ec2116d9be451caef651dc301b7a82e35550 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Andrew Dunham	c9961b8b95	cmd/derper: filter out useless HTTP error logs (#5563 ) These errors aren't actionable and just fill up logs with useless data. See the following Go issue for more details: https://golang.org/issue/26918 Signed-off-by: Andrew Dunham <andrew@tailscale.com>	2 years ago
Brad Fitzpatrick	02de34fb10	cmd/derper: add flag to run derper in bootstrap-dns-only mode Change-Id: Iba128e94464afa605bc9df1f06a91d296380eed0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Andrew Dunham	a0bae4dac8	cmd/derper: add support for unpublished bootstrap DNS entries (#5529 ) Signed-off-by: Andrew Dunham <andrew@du.nham.ca>	2 years ago
Kris Brandow	8f38afbf8e	net/stun: convert to use net/netip.AddrPort Convert ParseResponse and Response to use netip.AddrPort instead of net.IP and separate port. Fixes #5281 Signed-off-by: Kris Brandow <kris.brandow@gmail.com>	2 years ago
Joe Tsai	b905db7a56	cmd/derper: remove support for logtail logging (#5248 ) There aren't really any useful logs produced by derper. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	2 years ago
Brad Fitzpatrick	740e3c006c	cmd/derper: add --stun-port flag And flesh out docs on the --http-port flag. Change-Id: If9d42665f67409082081cb9a25ad74e98869337b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Joe Tsai	0173a50bf0	cmd/derper: add a rate limiter for accepting new connection (#3908 ) A large influx of new connections can bring down DERP since it spins off a new goroutine for each connection, where each routine may do significant amount of work (e.g., allocating memory and crunching numbers for TLS crypto). The momentary spike can cause the process to OOM. This commit sets the groundwork for limiting connections, but leaves the limit at infinite by default. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Brad Fitzpatrick	fa612c28cf	cmd/derper: make --stun default to on, flesh out flag docs Change-Id: I49e80c61ab19e78e4c8b4bc9012bb70cfe3bfa75 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	f5ec916214	cmd/derper: disable TLS 1.0 and 1.1. Updates tailscale/corp#3568 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	508f332bb2	cmd/derper: export TLS vars with derper_ prefix, not stun_ Updates tailscale/corp#3568 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	ff3442d92d	cmd/derper: record TLS versions used for requests. Surveying the fleet prior to turning off old/unused/insecure TLS versions. Updates tailscale/corp#3615 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Arnaud Dezandee	656809e4ee	cmd/derper: allow http port configuration Signed-off-by: Arnaud Dezandee <dezandee.arnaud@gmail.com>	3 years ago
David Anderson	db800ddeac	cmd/derper: set Content-Security-Policy on DERPs. It's a basic "deny everything" policy, since DERP's HTTP server is very uninteresting from a browser POV. But it stops every security scanner under the sun from reporting "dangerously configured" HTTP servers. Updates tailscale/corp#3119 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	9a217ec841	cmd/derper: increase HSTS cache lifetime to 2 years. Fixes #3373. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	937e96f43d	cmd/derper: enable HSTS when serving over HTTPS. Starting with a short lifetime, to verify nothing breaks. Updates #3373 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
oocococo	3a2b0fc36c	cmd/derper: support custom TLS port when in manual mode (#3231 ) Fixes #3232 Change-Id: I8dae5c01f9dfdfd6d45e34e4ca3534b642ae5c8e Signed-off-by: oocococo <mercurial.lx@gmail.com>	3 years ago
David Anderson	37c150aee1	derp: use new node key type. Update #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	a47158e14d	cmd/derper: use new node key type. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	b0b0a80318	net/netcheck: implement netcheck for js/wasm clients And the derper change to add a CORS endpoint for latency measurement. And a little magicsock change to cut down some log spam on js/wasm. Updates #3157 Change-Id: I5fd9e6f5098c815116ddc8ac90cbcd0602098a48 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	505f844a43	cmd/derper, derp/derphttp: add websocket support Updates #3157 Change-Id: I337a919a3b350bc7bd9af567b49c4d5d6616abdd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	0be26599ca	cmd/derper: refactor STUN path for testing, add serverSTUN benchmark Real goal is to eliminate some allocs in the STUN path, but that requires work in the standard library. See comments in #2783. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	d5851d2e06	cmd/derper: fix real staticcheck failure from prior commit Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Silver Bullet	d8c5d00ecb	cmd/derper: support manual TLS certificate mode (#2793 ) Add a mode control for derp server, and add a "manual" mode to get derp server certificate. Under manual mode, certificate is searched in the directory given by "--cert-dir". Certificate should in PEM format, and use "hostname.{key,crt}" as filename. If no hostname is used, search by the hostname given for listen. Fixes #2794 Signed-off-by: SilverBut <SilverBut@users.noreply.github.com>	3 years ago
Brad Fitzpatrick	5d800152d9	cmd/derper: increase port 80's WriteTimeout to permit longer CPU profiles Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Chuangbo Li	e4e4d336d9	cmd/derper: listen on host of flag server addr for port 80 and 3478 (#2768 ) cmd/derper: listen on host of flag server addr for port 80 and 3478 When using custom derp on the server with multiple IP addresses, we would like to bind derp 80, 443 and stun 3478 to a certain IP. derp command provides flag `-a` to customize which address to bind for port 443. But port :80 and :3478 were hard-coded. Fixes #2767 Signed-off-by: Li Chuangbo <im@chuangbo.li>	3 years ago
Brad Fitzpatrick	7a7aa8f2b0	cmd/derper: also add port 80 timeouts Didn't notice this one in earlier `00b3c1c042` Updates tailscale/corp#2486 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	00b3c1c042	cmd/derper: add missing read/write timeouts Updates tailscale/corp#2486 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
julianknodt	b67a3007d5	cmd/derper: remove default for non-root users Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
julianknodt	9d4eddcef8	cmd/derper: add default -c arguments This adds some convenient defaults for -c, so that user-provided DERPs require less command line flags. Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
julianknodt	148602a89a	derp,cmd/derper: allow server to verify clients This adds a flag to the DERP server which specifies to verify clients through a local tailscaled. It is opt-in, so should not affect existing clients, and is mainly intended for users who want to run their own DERP servers. It assumes there is a local tailscaled running and will attempt to hit it for peer status information. Updates #1264 Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
julianknodt	3728634af9	derp: add debug traffic handler This adds a handler on the DERP server for logging bytes send and received by clients of the server, by holding open a connection and recording if there is a difference between the number of bytes sent and received. It sends a JSON marshalled object if there is an increase in the number of bytes. Signed-off-by: julianknodt <julianknodt@gmail.com>	4 years ago
David Anderson	0022c3d2e2	tsweb: replace NewMux with a more flexible DebugHandler. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	f68431fc02	cmd/derper: add /bootstrap-dns handler For option (d) of #1405. For an HTTPS request of /bootstrap-dns, this returns e.g.: { "log.tailscale.io": [ "2600:1f14:436:d603:342:4c0d:2df9:191b", "34.210.105.16" ], "login.tailscale.com": [ "2a05:d014:386:203:f8b4:1d5a:f163:e187", "3.121.18.47" ] } Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	99d67493be	cmd/derper: update a link from godoc.org to pkg.go.dev Save a redirect. 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
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
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
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
Josh Bleecher Snyder	3fa863e6d9	cmd/derper: add missing html.EscapeString calls in /debug page Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	e415991256	derp, derp/derphttp: remove one RTT from DERP setup * advertise server's DERP public key following its ServerHello * have client look for that DEPR public key in the response PeerCertificates * let client advertise it's going into a "fast start" mode if it finds it * modify server to support that fast start mode, just not sending the HTTP response header Cuts down another round trip, bringing the latency of being able to write our first DERP frame from SF to Bangalore from ~725ms (3 RTT) to ~481ms (2 RTT: TCP and TLS). Fixes #693 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	b23f2263c1	derp: add server version to /debug, expvars This will make it easier for a human to tell what version is deployed, for (say) correlating line numbers in profiles or panics to corresponding source code. It'll also let us observe version changes in prometheus. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	10ac066013	all: fix vet warnings	4 years ago
Brad Fitzpatrick	b87396b5d9	cmd/derper, derp: add some more varz and consistency check handler I'm trying to hunt down a slow drift in numbers not agreeing.	5 years ago
Brad Fitzpatrick	1cb7dab881	cmd/derper: support forwarding packets amongst set of peer DERP servers Updates #388 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	b663ab4685	cmd/derper: treat self-connection connection watch as no-op Updates #388	5 years ago
Brad Fitzpatrick	5798826990	cmd/derper: add /home/bradfitz/keys to default mesh key search list	5 years ago

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67 Commits (6d5527e4b300c61fae3a82842c3da33cee936f00)