tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	c445e3d327	wgengine/magicsock: fix typo in comment	4 years ago
Aleksandar Pesic	258d0e8d9a	wgengine/monitor: simplify the Windows monitor to make it more reliable Updates tailscale/tailscale#1414 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Naman Sood	4c80344e27	wgengine/netstack: stop UDP forwarding when one side dies Updates #504 Updates #707 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Naman Sood	7325b5a7ba	wgengine/netstack: add support for incoming UDP connections Updates #504 Updates #707 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	43b30e463c	ipn/ipnserver: refactor permissions checks a bit, document more, fix Windows Windows was only running the localapi on the debug port which was a stopgap at the time while doing peercreds work. Removed that, and wired it up correctly, with some more docs. More clean-up to do after 1.6, moving the localhost TCP auth code into the peercreds package. But that's too much for now, so the docs will have to suffice, even if it's at a bit of an awkward stage with the newly-renamed "NotWindows" field, which still isn't named well, but it's better than its old name of "Unknown" which hasn't been accurate since unix sock peercreds work anyway. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Denton Gentry	bcea88da46	wgengine: support FreeBSD with IPv6. Fixes https://github.com/tailscale/tailscale/issues/1307 for keepsies. We cannot set the tun interface address as a /128 on FreeBSD, due to https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218508 Instead we set the interface address as a /48, which is enabled by commit `82edf94df7`. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	c8af6bc009	Revert "freebsd: ignore IPv6 for now" This reverts commit `061422affc`. We have a way to support IPv6 on FreeBSD now. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Brad Fitzpatrick	f45a9e291b	tailcfg, control/controlclient: add MapResponse.PingRequest So the control server can test whether a client's actually present. Most clients are over HTTP/2, so these pings (to the same host) are super cheap. This mimics the earlier goroutine dump mechanism. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e453c7ca57	safesocket: use right version of gofmt sigh Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f11cb811cc	safesocket: support finding tailscale port/auth token from sandboxed CLI Previously the CLI could only find the HTTP auth token when running the CLI outside the sandbox, not like /Applications/Tailscale.app/Contents/MacOS/Tailscale when that was from the App Store. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	bc159dc689	cmd/tailscale: fix depaware.txt git fail. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c136f48b79	cmd/tailscale/cli: restore hidden debug subcommand The debub subcommand was moved in `6254efb9ef` because the monitor brought in tons of dependencies to the cmd/tailscale binary, but there wasn't any need to remove the whole subcommand itself. Add it back, with a tool to dump the local daemon's goroutines. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a4b585947d	ipn/localapi, client/tailscale: add a goroutine dump handler Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1ca3e739f7	ipn/ipnserver: set PermitWrite on localapi handler The TODO was easy now with peerCreds and the isReadonlyConn func. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Steve Coffman	0d0fad43ed	build_docker.sh, Dockerfile: fix bug with shell quoting Fixes #1449 Signed-off-by: Steve Coffman <steve@khanacademy.org>	4 years ago
Brad Fitzpatrick	602f92ec30	wgengine/monitor: log warning if state changes but stringification doesn't Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b14ea68754	net/interfaces: log why when we failed to look up gateway on macOS Not beautiful, but I'm debugging connectivity problems on NEProvider.sleep+wake and need more clues. Updates #1426 Updates tailscale/corp#1289 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	affd859121	ipn/ipnlocal, control/controlclient: propagate link monitor to controlclient Don't use it yet, but get it down there. Updates #1455 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d37b3b02cd	net/dnsfallback: fix infinite loop and limit number of candidates Updates #1455 (fixes the DNS spin part, but other things aren't ideal there) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	63a9adeb6c	portlist: collect IPv6 listening sockets on linux. This is important because some of those v6 sockets are actually dual-stacked sockets, so this is our only chance of discovering some services. Fixes #1443. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	82edf94df7	ipn/ipnlocal: make IPv6 OS routes be a single /48 for our ULA space And if we have over 10,000 CGNAT routes, just route the entire CGNAT range. (for the hello test server) Fixes #1450 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a6d098c750	wgengine/magicsock: log when DERP connection succeeds Updates #1310	4 years ago
Brad Fitzpatrick	829eb8363a	net/interfaces: sort returned addresses from LocalAddresses Also change the type to netaddr.IP while here, because it made sorting easier. Updates tailscale/corp#1397 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	ad6edf5ecd	portlist: report a better process name for .Net on linux. Fixes #1440. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	ffa70a617d	wgengine{,/monitor}: restore Engine.LinkChange, add Mon.InjectEvent The Engine.LinkChange method was recently removed in `e3df29d488` while misremembering how Android's link state mechanism worked. Rather than do some last minute rearchitecting of link state on Android before Tailscale 1.6, restore the old Engine.LinkChange hook for now so the Android client doesn't need any changes. But change how it's implemented to instead inject an event into the link monitor. Fixes #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	10f48087f4	net/tshttpproxy: call winhttp calls from a fixed OS thread We often see things in logs like: 2021-03-02 17:52:45.2456258 +0800 +0800: winhttp: Open: The parameter is incorrect. 2021-03-02 17:52:45.2506261 +0800 +0800: tshttpproxy: winhttp: GetProxyForURL("https://log.tailscale.io/c/tailnode.log.tailscale.io/5037bb42f4bc330e2d6143e191a7ff7e837c6be538139231de69a439536e0d68"): ERROR_INVALID_PARAMETER [unexpected] I have a hunch that WinHTTP has thread-local state. If so, this would fix it. If not, this is pretty harmless. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Denton Gentry	061422affc	freebsd: ignore IPv6 for now FreeBSD tun devices don't work with the way we implement IPv6 https://github.com/tailscale/tailscale/issues/1307 At least for now, remove any IPv6 addresses from the netmap. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	524fb2c190	safesocket: add FreeBSD to PlatformUsesPeerCreds FreeBSD is supported by peercred now. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	6756f20632	go.mod: update peercred Adds FreeBSD support. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
David Anderson	2e347d1e10	tailcfg: tweak documentation for map version 11 version: bump date.	4 years ago
David Anderson	ea49b1e811	tailcfg: bump map request version for v6 + default routes. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	1cb0ffc3ff	wgengine/router: make windows gracefully handle disabled IPv4 or IPv6. This is necessary because either protocol can be disabled globally by a Windows registry policy, at which point trying to touch that address family results in "Element not found" errors. This change skips programming address families that Windows tell us are unavailable. Fixes #1396. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	92cdb30b26	tailcfg, control/controlclient: add goroutine dump debug feature Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f858b0d25f	wgengine/netstack: remove some v2 logging by default Even with [v2], it still logtails and takes time to format. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	d01c60dad5	wgengine/netstack: use system dialer to contact servers on localhost Updates #504 Updates #707 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	7461dded88	wgengine/monitor: on unsupported platforms, use a polling implementation Not great, but lets people working on new ports get going more quickly without having to do everything up front. As the link monitor is getting used more, I felt bad having a useless implementation. Updates #815 Updates #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8a55d463c8	net/interfaces: merge darwin files for DefaultRouteInterface in sandbox DefaultRouteInterface was previously guarded by build tags such that it was only accessible to tailscaled-on-macos, but there was no reason for that. It runs fine in the sandbox and gives better default info, so merge its file into interfaces_darwin.go. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	8d77dfdacb	wgengine/router: add a dummy IPv6 address if needed for default routing. Fixes #1339 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	b4cf837d8a	logtail: use link monitor to determine when to retry after upload failure Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c3e5903b91	wgengine/magicsock: remove leftover portmapper debug logging It's already logged at the right time in logEndpointChange. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	15b6969a95	ipn/ipnserver: grant client r/w access if peer uid matches tailscaled Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	63ed4dd6c9	net/portmapper: fix typo Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	95c03d1ead	wgengine/netstack: forward incoming connections to localhost Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	471f0c470a	wgengine/monitor: skip some macOS route updates, fix debounce regression Debound was broken way back in `5c1e443d34` and we never noticed. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	be779b3587	safesocket, ipn/ipnserver: unify peercred info, fix bug on FreeBSD etc FreeBSD wasn't able to run "tailscale up" since the recent peercred refactoring. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f304a45481	wgengine/monitor: add skipped failing test for Darwin route message bug Updates #1416 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	0d0ec7853c	cmd/tailscaled: don't require root on darwin with --tun=userspace-networking Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	31721759f3	wgengine/monitor: don't return nil, nil in darwin monitor We used to allow that, but now it just crashes. Separately I need to figure out why it got into this path at all, which is #1416. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Christine Dodrill	b89c757817	wgengine/tsdns: explicitly reject .onion lookups Tor has a location-hidden service feature that enables users to host services from inside the Tor network. Each of these gets a unique DNS name that ends with .onion. As it stands now, if a misbehaving application somehow manages to make a .onion DNS request to our DNS server, we will forward that to the DNS server, which could leak that to malicious third parties. See the recent bug Brave had with this[1] for more context. RFC 7686 suggests that name resolution APIs and libraries MUST respond with NXDOMAIN unless they can actually handle Tor lookups. We can't handle .onion lookups, so we reject them. [1]: https://twitter.com/albinowax/status/1362737949872431108 Fixes tailscale/corp#1351 Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	c0cdca6d06	cmd/tailscaled, logtail: share link monitor from wgengine to logtail Part of overall effort to clean up, unify, use link monitoring more, and make Tailscale quieter when all networks are down. This is especially bad on macOS where we can get killed for not being polite it seems. (But we should be polite in any case) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago

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