tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	ca51529b81	derp/derphttp: return nicer errors from Recv on Close	4 years ago
Brad Fitzpatrick	66be052a70	net/dnscache: work on IPv6-only hosts (again) This fixes the regression where we had stopped working on IPv6-only hosts. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1e0be5a458	tshttp, derphttp: send Proxy-Authorization, not Authorization, to proxies Whoops. But weirdly, sending Authorization sometimes worked?	4 years ago
Brad Fitzpatrick	28f9cd06f5	tshttpproxy, controlclient, derphttp, logpolicy: send Negotiate auth to proxies For Windows only, and only when built with Tailscale's Go tree. Updates tailscale/corp#583	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
Brad Fitzpatrick	287522730d	derp/derphttp: support standard-ish SSLKEYLOGFILE environment variable For debugging.	4 years ago
Brad Fitzpatrick	c5eb57f4d6	net/tshttpproxy: new package, support WPAD/PAC proxies on Windows Updates tailscale/corp#553 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	69f3ceeb7c	derp/derphttp: don't return all nil from dialRegion when STUNOnly nodes	4 years ago
Brad Fitzpatrick	4732722b87	derp: add frameClosePeer to move around clients within a region For various reasons (mostly during rollouts or config changes on our side), nodes may end up connecting to a fallback DERP node in a region, rather than the primary one we tell them about in the DERP map. Connecting to the "wrong" node is fine, but it's in our best interest for all nodes in a domain to connect to the same node, to reduce intra-region packet forwarding. This adds a privileged frame type used by the control system that can kick off a client connection when they're connected to the wrong node in a region. Then they hopefully reconnect immediately to the correct location. (If not, we can leave them alone and stop closing them.) Updates tailscale/corp#372	4 years ago
Brad Fitzpatrick	abd79ea368	derp: reduce DERP memory use; don't require callers to pass in memory to use The magicsock derpReader was holding onto 65KB for each DERP connection forever, just in case. Make the derp{,http}.Client be in charge of memory instead. It can reuse its bufio.Reader buffer space.	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	5e0ff494a5	derp: change NewClient constructor to an option pattern (The NewMeshClient constructor I added recently was gross in retrospect at call sites, especially when it wasn't obvious that a meshKey empty string meant a regular client)	5 years ago
Brad Fitzpatrick	4d599d194f	derp, derp/derphttp: add key accessors, add Client.RecvDetail Client.RecvDetail returns a connection generation so interested clients can detect when a reconnect happened. (Will be needed for #388)	5 years ago
Brad Fitzpatrick	484b7fc9a3	derp, cmd/derper: add frameWatchConns, framePeerPresent for inter-DERP routing This lets a trusted DERP client that knows a pre-shared key subscribe to the connection list. Upon subscribing, they get the current set of connected public keys, and then all changes over time. This lets a set of DERP server peers within a region all stay connected to each other and know which clients are connected to which nodes. Updates #388 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	24009241bf	net/netns: move SOCKS dialing to netns for now This lets control & logs also use SOCKS dials. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	cf0d19f0ab	net/tlsdial, derp/derphttp: finish DERPNode.CertName validation	5 years ago
Brad Fitzpatrick	7f68e097dd	net/netcheck: fix HTTPS fallback bug from earlier today My earlier `3fa58303d0` tried to implement the net/http.Tranhsport.DialTLSContext hook, but I didn't return a *tls.Conn, so we ended up sending a plaintext HTTP request to an HTTPS port. The response ended up being Go telling as such, not the /derp/latency-check handler's response (which is currently still a 404). But we didn't even get the 404. This happened to work well enough because Go's built-in error response was still a valid HTTP response that we can measure for timing purposes, but it's not a great answer. Notably, it means we wouldn't be able to get a future handler to run server-side and count those latency requests.	5 years ago
Brad Fitzpatrick	3fa58303d0	netcheck: address some HTTP fallback measurement TODOs	5 years ago
David Anderson	e9f7d01b91	derp/derphttp: make DERP client use netns for dial-outs.	5 years ago
Brad Fitzpatrick	e6b84f2159	all: make client use server-provided DERP map, add DERP region support Instead of hard-coding the DERP map (except for cmd/tailscale netcheck for now), get it from the control server at runtime. And make the DERP map support multiple nodes per region with clients picking the first one that's available. (The server will balance the order presented to clients for load balancing) This deletes the stunner package, merging it into the netcheck package instead, to minimize all the config hooks that would've been required. Also fix some test flakes & races. Fixes #387 (Don't hard-code the DERP map) Updates #388 (Add DERP region support) Fixes #399 (wgengine: flaky tests) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	040a0d5121	derp/derphttp: don't use x/net/proxy for SOCKS on iOS We don't want those extra dependencies on iOS, at least yet. Especially since there's no way to set the relevant environment variables so it's just bloat with no benefits. Perhaps we'll need to do SOCKS on iOS later, but probably differently if/when so. Updates #227 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	e42ec4efba	derp/derphttp: use SOCKS/etc proxies for derphttp dials Updates #227 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	b6fa5a69be	net/tlsdial: add package for TLS dials, and make DERP & controlclient use it This will do the iOS-optimized cert checking in a following change.	5 years ago
Brad Fitzpatrick	614eec174f	derp/derphttp: avoid endless reconnect race on failure Originally from @stablebits (Dmitry Adamushko) in: https://github.com/tailscale/tailscale/pull/264	5 years ago
Brad Fitzpatrick	e749377a56	derp/derphttp: remove a redundant log message	5 years ago
Brad Fitzpatrick	6978b93bdd	derp, magicsock: track home (preferred) vs visiting connections for stats	5 years ago
Brad Fitzpatrick	cf4aacde57	derp/derphttp: appease staticcheck	5 years ago
Brad Fitzpatrick	2cff9016e4	net/dnscache: add overly simplistic DNS cache package for selective use I started to write a full DNS caching resolver and I realized it was overkill and wouldn't work on Windows even in Go 1.14 yet, so I'm doing this tiny one instead for now, just for all our netcheck STUN derp lookups, and connections to DERP servers. (This will be caching a exactly 8 DNS entries, all ours.) Fixes #145 (can be better later, of course)	5 years ago
David Crawshaw	9be9738f62	derphttp: add TLSConfig field Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	5 years ago
Brad Fitzpatrick	517a91de75	derp/derphttp: fix reconnect behavior I broke it in today's `752146a70f`. Added some comments to prevent recurrences. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	38acccad09	derp: remove some debug noise I left in :(	5 years ago
Brad Fitzpatrick	752146a70f	derp: clean up derphttp client code, use contexts Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	379a3125fd	derp, wgengine/magicsock: support more than just packets from Client.Recv Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	e06ca40650	wgengine, magicsock, derp: misc cleanups, docs Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	259406e797	derp: move away from [32]byte key types And some minor cleanup in the process. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	2896be60db	Move "logger" package to under types, now that we have it. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	a59dc5f155	Use logger.Logf consistently. It was used in most places. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Earl Lee	a8d8b8719a	Move Linux client & common packages into a public repo.	5 years ago

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88 Commits (0c8c7c0f901f8a5e6cefe1334f3d2e0ad4db7b69)