tailscale

Commit Graph

Author	SHA1	Message	Date
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
David Eger	f992749b98	cmd/tailscale: Add file get --loop flag. To "automatically receive taildrop files to my Downloads directory," user currently has to run 'tailscale file get' in a loop. Make it easy to do this without shell. Updates: #2312 Signed-off-by: David Eger <david.eger@gmail.com>	3 years ago
Xiaochao Dong (@damnever)	7d97800d52	cmd/tailscale: make web mode preserve URL scheme in Synology redirect Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>	3 years ago
James Tucker	2550acfd9d	go.mod: bump netstack for clone reset fix (#4379 ) In tracking down issue #4144 and reading through the netstack code in detail, I discovered that the packet buf Clone path did not reset the packetbuf it was getting from the sync.Pool. The fix was sent upstream https://github.com/google/gvisor/pull/7385, and this bump pulls that in. At this time there is no known path that this fixes, however at the time of upstream submission this reset at least one field that could lead to incorrect packet routing if exercised, a situation that could therefore lead to an information leak. Signed-off-by: James Tucker <james@tailscale.com>	3 years ago
James Tucker	c6ac29bcc4	wgengine/netstack: disable refsvfs2 leak tracking (#4378 ) In addition an envknob (TS_DEBUG_NETSTACK_LEAK_MODE) now provides access to set leak tracking to more useful values. Fixes #4309 Signed-off-by: James Tucker <james@tailscale.com>	3 years ago
Xe Iaso	55161b3d92	cmd/mkpkg: use package flag (#4373 ) Also removes getopt Signed-off-by: Xe <xe@tailscale.com>	3 years ago
Xe Iaso	be861797b4	cmd/mkpkg: add name argument (#4372 ) * shell.nix: rename goimports to gotools Signed-off-by: Xe <xe@tailscale.com> * cmd/mkpkg: allow specifying description and name in flag args Signed-off-by: Xe <xe@tailscale.com>	3 years ago
oliverpool	0b273e1857	cmd/tailscale: drop special exit code 125 for gokrazy No needed since gokrazy doesn't restart successful processes anymore: https://github.com/gokrazy/gokrazy/pull/127 Signed-off-by: Olivier Charvin <git@olivier.pfad.fr>	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
Brad Fitzpatrick	753f1bfad4	cmd/tailscale: write fewer known_hosts, resolve ssh host to FQDN early Updates #3802 Change-Id: Ic44fa2e6661a9c046e725c04fa6b8213d3d4d2b2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	df93158aac	cmd/tailscale: generate known_hosts file for 'tailscale ssh' Updates #3802 Change-Id: I7a0052392f000ee44fc8e719f6666756aab91f3d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	8294915780	cmd/tailscale/cli: add start of 'ssh' subcommand Updates #3802 Change-Id: Iabc07c00c7e4f43944cfe7daec8d2b66ac002289 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	06fcf3b225	cmd/tailscale: make status --peers=false work earlier + in JSON mode And return an error if you use non-flag arguments. Change-Id: I0dd6c357eb5cabd0f17020f21ba86406aea21681 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	5df12b9059	client/tailscale, cmd/tailscale, localapi: add 'tailscale nc' (actually) Adds missing file from `fc12cbfcd3`. GitHub was having issues earlier and it was all green because the checks never actually ran, but the DCO non-Actions check at least did, so "green" and I merged, not realizing it hadn't really run anything. Updates #3802 Change-Id: I29f605eebe5336f1f3ca28ebb78b092dd99d9fd8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	fc12cbfcd3	client/tailscale, cmd/tailscale, localapi: add 'tailscale nc' This adds a "tailscale nc" command that acts a bit like "nc", but dials out via tailscaled via localapi. This is a step towards a "tailscale ssh", as we'll use "tailscale nc" as a ProxyCommand for in some cases (notably in userspace mode). But this is also just useful for debugging & scripting. Updates #3802 RELNOTE=tailscale nc Change-Id: Ia5c37af2d51dd0259d5833d80264d3ad5f68446a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	77b4fe0afa	all: remove "no 1.18 support" failures We have worked around the issue in DERP, so the vanilla Go 1.18 toolchain now works. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	98984c1a9a	cmd/proxy-to-grafana: fix package doc code snippet Markdown isn't supported. Change-Id: I8d9bb92260c164dc277afbce624f64fc2faf5125 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Nick O'Neill	5fa502b5dc	cmd/proxy-to-grafana: use grafana's authproxy to log in tailnet users (#4208 ) Signed-off-by: Nick O'Neill <nick@tailscale.com>	3 years ago
Brad Fitzpatrick	f2041c9088	all: use strings.Cut even more Change-Id: I943ce72c6f339589235bddbe10d07799c4e37979 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Aaron Klotz	6e91f872af	net/tshttpproxy: ensure we pass the correct flags to WinHttpOpen on Win7 and Win8.0 The best flag to use on Win7 and Win8.0 is deprecated in Win8.1, so we resolve the flag depending on OS version info. Fixes https://github.com/tailscale/tailscale/issues/4201 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Brad Fitzpatrick	1db46919ab	cmd/tailscaled: make build fail nicely on older Go versions Due to a bug in Go (golang/go#51778), cmd/go doesn't warn about your Go version being older than the go.mod's declared Go version in that case that package loading fails before the build starts, such as when you use packages that are only in the current version of Go, like our use of net/netip. This change works around that Go bug by adding build tags and a pre-Go1.18-only file that will cause Go 1.17 and earlier to fail like: $ ~/sdk/go1.17/bin/go install ./cmd/tailscaled # tailscale.com/cmd/tailscaled ./required_version.go:11:2: undefined: you_need_Go_1_18_to_compile_Tailscale note: module requires Go 1.18 Change-Id: I39f5820de646703e19dde448dd86a7022252f75c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	0868329936	all: use any instead of interface{} My favorite part of generics. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	997b19545b	syncs: use TryLock and TryRLock instead of unsafe The docs say: Note that while correct uses of TryLock do exist, they are rare, and use of TryLock is often a sign of a deeper problem in a particular use of mutexes. Rare code! Or bad code! Who can tell! Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	ead16b24ec	cmd/tailscaled: fail early with nice error on macOS with go1.18 Due to golang/go#51759 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	d8953bf2ba	cmd/derpprobe: don't alert for smaller failures. There is a Cosmic Background level of DERP Unreachability, with individual nodes or regions becoming unreachable briefly and returning a short time later. This is due to hosting provider outages or just the Internet sloshing about. Returning a 500 error pages a human. Being awoken at 3am for a transient error is annoying. For relatively small levels of badness don't page a human, just post to Slack. If the outage impacts a significant fraction of the DERP fleet, then page a human. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Josh Bleecher Snyder	8c2cb4b431	go.mod: update to latest certstore It includes a fix to allow us to use Go 1.18. We can now remove our Tailscale-only build tags. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	1f22507c06	version: use Go 1.18's git stamping as default implementation No more manual version bumps! Fixes #81 Change-Id: I3a9e544a7248f0b83bcbacbaabbc4dabc435e62d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	26021b07ec	control/controlclient: only build certstore-related code with the Tailscale Go toolchain The certstore code is impacted by golang/go#51726. The Tailscale Go toolchain fork contains a temporary workaround, so it can compile it. Once the upstream toolchain can compile certstore, presumably in Go 1.18.1, we can revert this change. Note that depaware runs with the upstream toolchain. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	1b57b0380d	wgengine/magicsock: remove final alloc from ReceiveFrom And now that we don't have to play escape analysis and inlining games, simplify the code. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	71b535fc94	go.mod: require Go 1.18 Also, update depaware for Go 1.18's dependency tree. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Eger	5be42c0af1	cmd/tailscale: add file get options for dealing with existing files A new flag --conflict=(skip\|overwrite\|rename) lets users specify what to do when receiving files that match a same-named file in the target directory. Updates #3548 Signed-off-by: David Eger <david.eger@gmail.com>	3 years ago
Maisem Ali	da6ce27416	go.mod: move from github.com/gliderlabs/ssh to github.com/tailscale/ssh Updates #4146 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	ba1adf6c24	ssh/tailssh: make pty termios options match OpenSSH Still not sure the exact rules of how/when/who's supposed to set these, but this works for now on making them match. Baby steps. Will research more and adjust later. Updates #4146 (but not enough to fix it, something's still wrong) Updates #3802 Change-Id: I496d8cd7e31d45fe9ede88fc8894f35dc096de67 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Aaron Klotz	f8a4df66de	cmd/tailscale/cli, ipn: move exit node IP parsing and validation from cli into prefs. We need to be able to provide the ability for the GUI clients to resolve and set the exit node IP from an untrusted string, thus enabling the ability to specify that information via enterprise policy. This patch moves the relevant code out of the handler for `tailscale up`, into a method on `Prefs` that may then be called by GUI clients. We also update tests accordingly. Updates https://github.com/tailscale/corp/issues/4239 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Joonas Kuorilehto	c1b3500a05	cmd/tailscale: allow use of flags in gokrazy Enable use of command line arguments with tailscale cli on gokrazy. Before this change using arguments like "up" would cause tailscale cli to be repeatedly restarted by gokrazy process supervisor. We never want to have gokrazy restart tailscale cli, even if user would manually start the process. Expected usage is that user creates files: flags/tailscale.com/cmd/tailscale/flags.txt: up flags/tailscale.com/cmd/tailscaled/flags.txt: --statedir=/perm/tailscaled/ --tun=userspace-networking Then tailscale prints URL for user to log in with browser. Alternatively it should be possible to use up with auth key to allow unattended gokrazy installs. Signed-off-by: Joonas Kuorilehto <joneskoo@derbian.fi>	3 years ago
Maisem Ali	06c147d848	ssh/tailssh: create login sessions for new connections Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 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
Maisem Ali	0f31a0fc76	control/controlclient: add Noise client Updates #3488 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	f18bb6397b	cmd/tailscale: tell gokrazy to not manage the CLI as a daemon In the future we'll probably want to run the "tailscale web" server instead, but for now stop the infinite restart loop. See https://gokrazy.org/userguide/process-interface/ for details. Updates #1866 Change-Id: I4133a5fdb859b848813972620495865727fe397a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	db85384f9c	cmd/tailscaled: default to userspace-networking mode on gokrazy, set paths One of the current few steps to run Tailscale on gokrazy is to specify the --tun=userspace-networking flag: https://gokrazy.org/userguide/install/tailscale/ Instead, make it the default for now. Later we can change the default to kernel mode if available and fall back to userspace mode like Synology, once #391 is done. Likewise, set default paths for Gokrazy, as its filesystem hierarchy is not the Linux standard one. Instead, use the conventional paths as documented at https://gokrazy.org/userguide/install/tailscale/. Updates #1866 RELNOTE=default to userspace-networking mode on gokrazy Change-Id: I3766159a294738597b4b30629d2860312dbb7609 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	55095df644	net/interfaces: get Linux default route from netlink as fallback If it's in a non-standard table, as it is on Unifi UDM Pro, apparently. Updates #4038 (probably fixes, but don't have hardware to verify) Change-Id: I2cb9a098d8bb07d1a97a6045b686aca31763a937 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	497324ddf6	ipn/store: add common package for instantiating ipn.StateStores Also move KubeStore and MemStore into their own package. RELNOTE: tsnet now supports providing a custom ipn.StateStore. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Dmytro Shynkevych	d9a7205be5	net/tstun: set link speed to SPEED_UNKNOWN Fixes #3933. Signed-off-by: Dmytro Shynkevych <dm.shynk@gmail.com>	3 years ago
Brad Fitzpatrick	4686224e5a	cmd/tailscaled: add a no-op test for profiling init-time memory allocs Turns out we're pretty good already at init-time work in tailscaled. The regexp/syntax shows up but it's hard to get rid of that; zstd even uses regexp. shrug Change-Id: I856aca056dcb7489f5fc22ef07f55f34ddf19bd6 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	4cbdc84d27	cmd/tailscaled/childproc: add be-child registration mechanism For ssh and maybe windows service babysitter later. Updates #3802 Change-Id: I7492b98df98971b3fb72d148ba92c2276cca491f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c9eca9451a	ssh: make it build on darwin For local dev testing initially. Product-wise, it'll probably only be workable on the two unsandboxed builds. Updates #3802 Change-Id: Ic352f966e7fb29aff897217d79b383131bf3f92b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7d897229d9	net/dns: ignore permission errors on Synology DSM7 for now Updates #4017 Change-Id: Ia7fd4df47588c010dea8e63d88f397cc8eb748e5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	29279b34fa	cmd/tailscale: make configure-host on Synology also add CAP_NET_RAW Updates #4012 Change-Id: Ic45b5709a73b4f1cd466823e177b52d1d20ba84e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Aaron Klotz	e31d68d64e	hostinfo: use the sentinel value set by the MSI installer to detect MSI package type The MSI installer sets a special sentinel value that we can use to detect it. I also removed the code that bails out when the installation path is not `Program Files`, as both the NSIS and MSI installers permit the user to install to a different path. Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Maisem Ali	c7a8f0992d	ipn/ipnlocal: use views for Peer.PrimaryRoutes and Peer.Tags RELNOTE=`tailscale status --json` now shows Tags and PrimaryRoutes Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	e921e1b02d	cmd/tailscale: add "tailscale debug hostinfo" subcommand Change-Id: Ifa09364d42e0516fdf80feddaf33c95880228049 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	f9a50779e2	cmd/tailscaled: add `-state=mem:` to support creation of an ephemeral node. RELNOTE=`tailscaled --state=mem:` registers as an ephemeral node and does not store state to disk. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Josh Bleecher Snyder	94409db7e2	cmd/tailscale: rewrite --authkey to --auth-key That way humans don't have to remember which is correct. RELNOTE=--auth-key is the new --authkey, but --authkey still works Updates tailscale/corp#3486 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Maisem Ali	72d8672ef7	tailcfg: make Node.Hostinfo a HostinfoView Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	1b87e025e9	ssh/tailssh: move SSH code from wgengine/netstack to this new package Still largely incomplete, but in a better home now. Updates #3802 Change-Id: I46c5ffdeb12e306879af801b06266839157bc624 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c988bd6ed1	net/dns/resolvconffile: unify three /etc/resolv.conf parsers into new package Change-Id: I2120893ca802d12f1bd0407d49077d3672627d33 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	8fe503057d	net/netutil: unify two oneConnListeners into a new package I was about to add a third copy, so unify them now instead. Change-Id: I3b93896aa1249b1250a6b1df4829d57717f2311a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a80cef0c13	cmd/derper: fix regression from bootstrap DNS optimization The commit `b9c92b90db` earlier today caused a regression of serving an empty map always, as it was JSON marshalling an atomic.Value instead of the DNS entries map it just built. Change-Id: I9da3eeca132c6324462dedeaa7d002908557384b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	84046d6f7c	Revert "cmd/derper: stop setting content header in handleBootstrapDNS" Didn't help enough. We are setting another header anyway. Restore it. This reverts commit `60abeb027b`. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	ec62217f52	cmd/derper: close connections once bootstrap DNS has been served Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	60abeb027b	cmd/derper: stop setting content header in handleBootstrapDNS No one really cares. Its cost outweighs its usefulness. name old time/op new time/op delta HandleBootstrapDNS-10 105ns ± 4% 65ns ± 2% -37.68% (p=0.000 n=15+14) name old alloc/op new alloc/op delta HandleBootstrapDNS-10 416B ± 0% 0B -100.00% (p=0.000 n=15+15) name old allocs/op new allocs/op delta HandleBootstrapDNS-10 3.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	b9c92b90db	cmd/derper: optimize handleBootstrapDNS Do json formatting once, rather than on every request. Use an atomic.Value. name old time/op new time/op delta HandleBootstrapDNS-10 6.35µs ± 0% 0.10µs ± 4% -98.35% (p=0.000 n=14+15) name old alloc/op new alloc/op delta HandleBootstrapDNS-10 3.20kB ± 0% 0.42kB ± 0% -86.99% (p=0.000 n=12+15) name old allocs/op new allocs/op delta HandleBootstrapDNS-10 41.0 ± 0% 3.0 ± 0% -92.68% (p=0.000 n=15+15) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	e206a3663f	cmd/derper: add BenchmarkHandleBootstrapDNS Signed-off-by: Josh Bleecher Snyder <josh@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
Aaron Klotz	3a74f2d2d7	cmd/tailscaled, util/winutil: add accessor functions for Windows system policies. This patch adds new functions to be used when accessing system policies, and revises callers to use the new functions. They first attempt the new registry path for policies, and if that fails, attempt to fall back to the legacy path. We keep non-policy variants of these functions because we should be able to retain the ability to read settings from locations that are not exposed to sysadmins for group policy edits. The remaining changes will be done in corp. Updates https://github.com/tailscale/tailscale/issues/3584 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Brad Fitzpatrick	3c481d6b18	cmd/tailscale: add "tailscale configure-host" to prep a Synology machine at boot Updates #3761 Change-Id: Ib5ab9a4808ade074f48d3abee22c57d7670f9e21 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	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
Brad Fitzpatrick	02bdc654d5	cmd/tailscale: fix up --reset, again Also fix a somewhat related printing bug in the process where some paths would print "Success." inconsistently even when there otherwise was no output (in the EditPrefs path) Fixes #3830 Updates #3702 (which broke it once while trying to fix it) Change-Id: Ic51e14526ad75be61ba00084670aa6a98221daa5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	70d71ba1e7	cmd/derpprobe: check derper TLS certs too Change-Id: If8c48e012b294570ebbb1a46bacdc58fafbfbcc5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	1af26222b6	go.mod: bump netstack, switch to upstream netstack Now that Go 1.17 has module graph pruning (https://go.dev/doc/go1.17#go-command), we should be able to use upstream netstack without breaking our private repo's build that then depends on the tailscale.com Go module. This is that experiment. Updates #1518 (the original bug to break out netstack to own module) Updates #2642 (this updates netstack, but doesn't remove workaround) Change-Id: I27a252c74a517053462e5250db09f379de8ac8ff Signed-off-by: Brad Fitzpatrick <bradfitz@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
davideger	f31546809f	cmd/tailscale: propagate tailscaled 403s as AccessDeniedErrors So Linux/etc CLI users get helpful advice to run tailscale with --operator=$USER when they try to 'tailscale file {cp,get}' but are mysteriously forbidden. Signed-off-by: David Eger <eger@google.com> Signed-off-by: David Eger <david.eger@gmail.com>	3 years ago
Brad Fitzpatrick	f3c0023add	wgengine/netstack: add an SSH server experiment Disabled by default. To use, run tailscaled with: TS_SSH_ALLOW_LOGIN=you@bar.com And enable with: $ TAILSCALE_USE_WIP_CODE=true tailscale up --ssh=true Then ssh [any-user]@[your-tailscale-ip] for a root bash shell. (both the "root" and "bash" part are temporary) Updates #3802 Change-Id: I268f8c3c95c8eed5f3231d712a5dc89615a406f0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	41fd4eab5c	envknob: add new package for all the strconv.ParseBool(os.Getenv(..)) A new package can also later record/report which knobs are checked and set. It also makes the code cleaner & easier to grep for env knobs. Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Brad Fitzpatrick	92dfaf53bb	cmd/tailscaled: include Go runtime metrics in /debug/metrics Fixes #3772 Change-Id: I237ea23268664d99e83d27890146018b04474556 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	a076aaecc6	cmd/tailscale: use html/template for synoTokenRedirect The GitHub code scanner flagged this as a security vulnerability. I don't believe it was, but I couldn't convince myself of it 100%. Err on the safe side and use html/template to generate the HTML, with all necessary escaping. Fixes tailscale/corp#2698 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Maisem Ali	9e8a432146	cmd/tailscale/cli/web: fix typo where the html template data was being replaced instead of being appended to. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	e6626366a2	cmd/tailscale: let 'tailscale up --reset' do a pref edit The --reset shouldn't imply that a Backend.Start is necessary. With this, it can do a Backend.EditPrefs instead, which then doesn't do all the heavy work that Start does. Also, Start on Windows behaves slightly differently than Linux etc in some cases because of tailscaled running in client mode on Windows (where the GUI supplies the prefs). Fixes #3702 Change-Id: I75c9f08d5e0052bf623074030a3a7fcaa677abf6 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	b8ad90c2bf	cmd/derper: in manual cert mode, don't discard error from VerifyHostname Updates #3701 Change-Id: If8ca5104bd8221c99cc390ca49ee3401aff09b62 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	64c2657448	cmd/printdep: add flag to print out Go toolchain tarball URL Updates #3669 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3690bfecb0	ipn/ipnlocal: fix cert fetching on macOS GUI platforms And clarify the directory they get written to when under the sandbox. Fixes #3667 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c8b63a409e	cmd/hello: also redirect https://hello.ipn.dev to hello.ts.net I apparently only did HTTP before, not HTTPS. Updates tailscale/corp#1327 Change-Id: I7d5265a0a25fcab5b142c8c3f21a0920f6cae39f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	e2d9c99e5b	cmd/hello: migrate to hello.ts.net as the hostname But still support hello.ipn.dev for a bit. Updates tailscale/corp#1327 Change-Id: Iab59cca0b260d69858af16f4e42677e54f9fe54a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ebdd25920e	go.toolchain.rev: add Go toolchain rev, tool to print it out Updates tailscale/corp#3385 Change-Id: Ia0e285a0ae836744539c97ff6eff207588159688 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7d9b1de3aa	netcheck,portmapper,magicsock: ignore some UDP write errors on Linux Treat UDP send EPERM errors as a lost UDP packet, not something super fatal. That's just the Linux firewall preventing it from going out. And add a leaf package net/neterror for that (and future) policy that all three packages can share, with tests. Updates #3619 Change-Id: Ibdb838c43ee9efe70f4f25f7fc7fdf4607ba9c1d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	96cab21383	cmd/tailscale: add debug restun, rebind subcommands In the hidden debug menu. Change-Id: I20213f1f4e2290d36f9ff561bac0cc767400d5fd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ae319b4636	wgengine/magicsock: add HTML debug handler to see magicsock state Change-Id: Ibc46f4e9651e1c86ec6f5d139f5e9bdc7a488415 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3dedcd1640	logpolicy, ipn/ipnserver: connect to logtail via tailscaled when needed This is for use by the Windows GUI client to log via when an exit node is in use, so the logs don't go out via the exit node and instead go directly, like tailscaled's. The dialer tried to do that in the unprivileged GUI by binding to a specific interface, but the "Internet Kill Switch" installed by tailscaled for exit nodes precludes that from working and instead the GUI fails to dial out. So, go through tailscaled (with a CONNECT request) instead. Fixes tailscale/corp#3169 Change-Id: I17a8efdc1d4b8fed53a29d1c19995592b651b215 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	40e2b312b6	ipn/ipnserver, logpolicy: move Windows disk logging up earlier This moves the Windows-only initialization of the filelogger into logpolicy. Previously we only did it when babysitting the tailscaled subprocess, but this meant that log messages from the service itself never made it to disk. Examples that weren't logged to disk: * logtail unable to dial out, * DNS flush messages from the service * svc.ChangeRequest messages (#3581) This is basically the same fix as #3571 but staying in the Logf type, and avoiding build-tagged file (which wasn't quite a goal, but happened and seemed nice) Fixes #3570 Co-authored-by: Aaron Klotz <aaron@tailscale.com> Change-Id: Iacd80c4720b7218365ec80ae143339d030842702	3 years ago
Brad Fitzpatrick	689426d6bc	cmd/tailscaled: log Windows service change requests And add a little comment. Change-Id: If0bedf8aefd8d528149548fba829e7a9a8b2e114 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	4512e213d5	cmd/tailscale: improve ping error message when logged out Refactor out the pretty status printing code from status, use it in ping. Fixes #3549 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	59f4f33f60	cmd/tailscaled: fix windows logtail integration I broke it in 1.17.x sometime while rewiring some logs stuff, mostly in `0653efb092` (but with a handful of logs-related changes around that time) Fixes tailscale/corp#3265 Change-Id: Icb5c07412dc6d55f1d9244c5d0b51dceca6a7e34 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	adc97e9c4d	cmd/tailscale: make --accept-routes default true on Windows, macOS GUI One of the most annoying parts of using the Tailscale CLI on Windows and the macOS GUI is that Tailscale's GUIs default to running with "Route All" (accept all non-exitnode subnet routes) but the CLI--being originally for Linux--uses the Linux default, which is to not accept subnets. Which means if a Windows user does, e.g.: tailscale up --advertise-exit-node Or: tailscale up --shields-up ... then it'd warn about reverting the --accept-routes option, which the user never explicitly used. Instead, make the CLI's default match the platform/GUI's default. Change-Id: I15c804b3d9b0266e9ca8651e0c09da0f96c9ef8d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	63cd581c3f	safesocket: add ConnectionStrategy, provide control over fallbacks `fee2d9fad` added support for cmd/tailscale to connect to IPNExtension. It came in two parts: If no socket was provided, dial IPNExtension first, and also, if dialing the socket failed, fall back to IPNExtension. The second half of that support caused the integration tests to fail when run on a machine that was also running IPNExtension. The integration tests want to wait until the tailscaled instances that they spun up are listening. They do that by dialing the new instance. But when that dial failed, it was falling back to IPNExtension, so it appeared (incorrectly) that tailscaled was running. Hilarity predictably ensued. If a user (or a test) explicitly provides a socket to dial, it is a reasonable assumption that they have a specific tailscaled in mind and don't want to fall back to IPNExtension. It is certainly true of the integration tests. Instead of adding a bool to Connect, split out the notion of a connection strategy. For now, the implementation remains the same, but with the details hidden a bit. Later, we can improve that. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	39ffa16853	net/dnscache, net/tsdial: add DNS caching to tsdial UserDial This is enough to handle the DNS queries as generated by Go's net package (which our HTTP/SOCKS client uses), and the responses generated by the ExitDNS DoH server. This isn't yet suitable for putting on 100.100.100.100 where a number of different DNS clients would hit it, as this doesn't yet do EDNS0. It might work, but it's untested and likely incomplete. Likewise, this doesn't handle anything about truncation, as the exchanges are entirely in memory between Go or DoH. That would also need to be handled later, if/when it's hooked up to 100.100.100.100. Updates #3507 Change-Id: I1736b0ad31eea85ea853b310c52c5e6bf65c6e2a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a28d280b95	cmd/tailscaled: move start-up failure logging to one place The caller of func run said: // No need to log; the func already did But that wasn't true. Some return paths didn't log. So instead, return rich errors and have func main do the logging, so we can't miss anything in the future. Prior to this, safesocket.Listen for instance was causing tailscaled to os.Exit(1) on failure without any clue as to why. Change-Id: I9d71cc4d73d0fed4aa1b1902cae199f584f25793 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c0701b130d	ipn/ipnstate, cmd/tailscale: add Online bool to tailscale status & --json Fixes #3533 Change-Id: I2f6f0d712cf3f987fba1c15be74cdb5c8d565f04 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Denton Gentry	ffb16cdffb	cmd/tailscale: add --json for up Print JSON to stdout containing everything needed for authentication. { "AuthURL": "https://login.tailscale.com/a/0123456789", "QR": "data:image/png;base64,iV...QmCC", "BackendState": "NeedsLogin" } { "BackendState": "Running" } Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	d3d503d997	ipn/ipnlocal: add HTTP/2 h2c server support to peerapi on non-mobile platforms To make ExitDNS cheaper. Might not finish client-side support in December before 1.20, but at least server support can start rolling out ahead of clients being ready for it. Tested with curl against peerapi. Updates #1713 Change-Id: I676fed5fb1aef67e78c542a3bc93bddd04dd11fe Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	9c5c9d0a50	ipn/ipnlocal, net/tsdial: make SOCKS/HTTP dials use ExitDNS And simplify, unexport some tsdial/netstack stuff in the the process. Fixes #3475 Change-Id: I186a5a5cbd8958e25c075b4676f7f6e70f3ff76e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	de635ac0a8	cmd/tailscale: print more detail in connection failure error message Before: failed to connect to local tailscaled (which appears to be running). Got error: Get "http://local-tailscaled.sock/localapi/v0/status": EOF After: failed to connect to local tailscaled (which appears to be running as IPNExtension, pid 2118). Got error: Get "http://local-tailscaled.sock/localapi/v0/status": EOF This was useful just now, as it made it clear that tailscaled I thought I was connecting to might not in fact be running; there was a second tailscaled running that made the error message slightly misleading. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	003089820d	cmd/tailscale: fix setting revert checker's finding an exit node It was using the wrong prefs (intended vs current) to map the current exit node ID to an IP. Fixes #3480 Change-Id: I9f117d99a84edddb4cd1cb0df44a2f486abde6c2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	03a323de4e	cmd/tailscale: don't allow setting exit node to known invalid value Fixes #3081 Change-Id: I34c378dfd51ee013c21962dbe79c49b1ba06c0c5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a8f60cf6e8	cmd/tailscale: clarify which prefless flags don't need revert protection Fixes #3482 Change-Id: Icb51476b0d78d3758cb04df3b565e372b8289a46 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	f91481075d	cmd/tailscale: let --exit-node= take a machine name in addition to IP If you're online, let tailscale up --exit-node=NAME map NAME to its IP. We don't store the exit node name server-side in prefs, avoiding the concern raised earlier. Fixes #3062 Change-Id: Ieea5ceec1a30befc67e9d6b8a530b3cb047b6b40 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	adc5997592	net/tsdial: give netstack a Dialer, start refactoring name resolution This starts to refactor tsdial.Dialer's name resolution to have different stages: in-memory MagicDNS vs system resolution. A future change will plug in ExitDNS resolution. This also plumbs a Dialer into netstack and unexports the dnsMap internals. And it removes some of the async AddNetworkMapCallback usage and replaces it with synchronous updates of the Dialer's netmap from LocalBackend, since the LocalBackend has the Dialer too. Updates #3475 Change-Id: Idcb7b1169878c74f0522f5151031ccbc49fe4cb4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ad3d6e31f0	net/tsdial: move macOS/iOS peerapi sockopt logic from LocalBackend Change-Id: I812cae027c40c70cdc701427b1a1850cd9bcd60c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c7fb26acdb	net/tsdial: also plumb TUN name and monitor into tsdial.Dialer In prep for moving stuff out of LocalBackend. Change-Id: I9725aa9c3ebc7275f8c40e040b326483c0340127 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c37af58ea4	net/tsdial: move more weirdo dialing into new tsdial package, plumb Not done yet, but this move more of the outbound dial special casing from random packages into tsdial, which aspires to be the one unified place for all outbound dialing shenanigans. Then this plumbs it all around, so everybody is ultimately holding on to the same dialer. As of this commit, macOS/iOS using an exit node should be able to reach to the exit node's DoH DNS proxy over peerapi, doing the sockopt to stay within the Network Extension. A number of steps remain, including but limited to: * move a bunch more random dialing stuff * make netstack-mode tailscaled be able to use exit node's DNS proxy, teaching tsdial's resolver to use it when an exit node is in use. Updates #1713 Change-Id: I1e8ee378f125421c2b816f47bc2c6d913ddcd2f5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	d5405c66b7	net/tsdial: start of new package to unify all outbound dialing complexity For now this just deletes the net/socks5/tssocks implementation (and the DNSMap stuff from wgengine/netstack) and moves it into net/tsdial. Then initialize a Dialer early in tailscaled, currently only use for the outbound and SOCKS5 proxies. It will be plumbed more later. Notably, it needs to get down into the DNS forwarder for exit node DNS forwading in netstack mode. But it will also absorb all the peerapi setsockopt and netns Dial and tlsdial complexity too. Updates #1713 Change-Id: Ibc6d56ae21a22655b2fa1002d8fc3f2b2ae8b6df Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	2a95ee4680	cmd/tailscale, ipn/ipnstate: note which nodes are exit nodes in status Fixes #3446 Change-Id: Ib41d588e7fa434c02d134fa449f85b0e15083683 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	38d90fa330	net/portmapper: add clientmetrics for PCP/PMP responses Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	3181bbb8e4	cmd/tailscale: make file cp send files via tailscaled localapi So Taildrop sends work even if the local tailscaled is running in netstack mode, as it often is on Synology, etc. Updates #2179 (which is primarily about receiving, but both important) Change-Id: I9bd1afdc8d25717e0ab6802c7cf2f5e0bd89a3b2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	6e584ffa33	cmd/tailscaled: allow running the SOCKS5 and HTTP proxies on the same port. Fixes #3248 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Crawshaw	1e8b4e770a	update github.com/aws/aws-sdk-go-v2 Replaces #3464, #3365, #3366 with a PR that includes the depaware fix. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	105c545366	cmd/tailscale/cli: don't complain about --accept-routes true->false on Synology Fixes #3176 Change-Id: I844883e741dccfa5e7771c853180e9f65fb7f7a4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Thomas Weiß	6dc6ea9b37	cmd/tailscaled: log error on state store init failure Signed-off-by: Thomas Weiß <panos@unbunt.org>	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
Josh Bleecher Snyder	73beaaf360	net/tstun: rate limit "self disco out packet" logging When this happens, it is incredibly noisy in the logs. It accounts for about a third of all remaining "unexpected" log lines from a recent investigation. It's not clear that we know how to fix this, we have a functioning workaround, and we now have a (cheap and efficient) metric for this that we can use for measurements. So reduce the logging to approximately once per minute. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	b0d543f7a1	cmd/tailscale: add ip -1 flag This limits the output to a single IP address. RELNOTE=tailscale ip now has a -1 flag (TODO: update docs to use it) Fixes #1921 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	73beaf59fb	cmd/tailscale: improve ip subcommand docs Streamline the prose. Clarify what peer may be. Improve an error message. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Joonas Loppi	a3b709f0c4	tsshd: fix double exit with different exit codes Signed-off-by: Joonas Loppi <joonas@joonas.fi>	3 years ago
Brad Fitzpatrick	283ae702c1	ipn/ipnlocal: start adding DoH DNS server to peerapi when exit node Updates #1713 Change-Id: I8d9c488f779e7acc811a9bc18166a2726198a429 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Aaron Klotz	7d8feb2784	hostinfo: change Windows implementation to directly query version information using API and registry We replace the cmd.exe invocation with RtlGetNtVersionNumbers for the first three fields. On Windows 10+, we query for the fourth field which is available via the registry. The fourth field is not really documented anywhere; Firefox has been querying it successfully since Windows 10 was released, so we can be pretty confident in its longevity at this point. Fixes https://github.com/tailscale/tailscale/issues/1478 Signed-off-by: Aaron Klotz <aaron@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
Brad Fitzpatrick	2ea765e5d8	go.mod: bump inet.af/netstack Updates #2642 (I'd hoped, but doesn't seem to fix it) Change-Id: Id54af7c90a1206bc7018215957e20e954782b911 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	5294125e7a	cmd/tailscaled: disambiguate some startup failure error messages Updates #3351 Change-Id: I0afead4a084623567f56b19187574fa97b295b2a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	0653efb092	cmd/tailscaled: remove a redundant date prefix on Windows logs Change-Id: I28e122d4384697f51a748d67829409276c00b11e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ec036b3561	logpolicy: use bootstrap DNS for logtail dialer Fixes #3332 Change-Id: Ie45efb448e5508c3ece48dd1d8d7e9a39e2e9dc1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	36b1df1241	cmd/tailscale/cli: add --watch flag to "debug metrics" subcommand This adds a new --watch flag that prints out a block of metric changes every second, if anything changed. Example output: magicsock_disco_recv_ping +1 => 254 magicsock_disco_recv_pong +1 => 218 magicsock_disco_recv_udp +2 => 472 magicsock_disco_send_udp +2 => 536 magicsock_disco_sent_udp +2 => 536 magicsock_recv_data_ipv6 +1 => 82 magicsock_send_data +1 => 86 magicsock_send_udp +3 => 620 magicsock_recv_data_ipv6 +1 => 83 magicsock_send_data +1 => 87 magicsock_send_udp +1 => 621 magicsock_disco_recv_ping +1 => 255 magicsock_disco_recv_pong +1 => 219 magicsock_disco_recv_udp +2 => 474 magicsock_disco_send_udp +2 => 538 magicsock_disco_sent_udp +2 => 538 magicsock_recv_data_ipv6 +1 => 84 magicsock_send_data +1 => 88 magicsock_send_udp +3 => 624 magicsock_recv_data_ipv6 +1 => 85 magicsock_send_data +1 => 89 magicsock_send_udp +1 => 625 controlclient_map_response_map +1 => 207 controlclient_map_response_map_delta +1 => 204 controlclient_map_response_message +1 => 275 magicsock_disco_recv_ping +3 => 258 magicsock_disco_recv_pong +2 => 221 magicsock_disco_recv_udp +5 => 479 magicsock_disco_send_derp +1 => 6 magicsock_disco_send_udp +7 => 545 magicsock_disco_sent_derp +1 => 6 magicsock_disco_sent_udp +7 => 545 magicsock_recv_data_ipv6 +1 => 86 magicsock_send_data +1 => 90 magicsock_send_derp +1 => 12 magicsock_send_derp_queued +1 => 12 magicsock_send_udp +8 => 633 Updates #3307 Change-Id: I5ac2511e3ad24fa1e6ea958c3946fecebe4f79a7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	41da7620af	go.mod: update wireguard-go to pick up roaming toggle wgengine/wgcfg: introduce wgcfg.NewDevice helper to disable roaming at all call sites (one real plus several tests). Fixes tailscale/corp#3016. Signed-off-by: David Anderson <danderson@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	24ea365d48	netcheck, controlclient, magicsock: add more metrics Updates #3307 Change-Id: Ibb33425764a75bde49230632f1b472f923551126 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3b541c833e	util/clientmetric, logtail: log metric changes Updates #3307 Change-Id: I1399ebd786f6ff7defe6e11c0eb651144c071574 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	68917fdb5d	cmd/tailscale/cli: add "debug metrics" subcommand To let users inspect the tailscaled metrics easily. Updates #3307 Change-Id: I922126ca0626659948c57de74c6ef62f40ef5f5f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	945290cc3f	cmd/tailscale/cli: migrate hidden debug subcommand to use subcomands It was a mess of flags. Use subcommands under "debug" instead. And document loudly that it's not a stable interface. Change-Id: Idcc58f6a6cff51f72cb5565aa977ac0cc30c3a03 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	57b039c51d	util/clientmetrics: add new package to add metrics to the client And annotate magicsock as a start. And add localapi and debug handlers with the Prometheus-format exporter. Updates #3307 Change-Id: I47c5d535fe54424741df143d052760387248f8d3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	e6fbc0cd54	cmd/tailscaled, ipn/ipnserver: refactor ipnserver More work towards removing the massive ipnserver.Run and ipnserver.Options and making composable pieces. Work remains. (The getEngine retry loop on Windows complicates things.) For now some duplicate code exists. Once the Windows side is fixed to either not need the retry loop or to move the retry loop into a custom wgengine.Engine wrapper, then we can unify tailscaled_windows.go too. Change-Id: If84d16e3cd15b54ead3c3bb301f27ae78d055f80 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	2b082959db	safesocket: add WindowsLocalPort const Remove all the 41112 references. Change-Id: I2d7ed330d457e3bb91b7e6416cfb2667611e50c4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	649f7556e8	cmd/tailscaled, ipn: add tailscaled --statedir flag for var directory Fixes #2932 Change-Id: I1aa2b323ad542386d140f8336bcc4dcbb8310bd0 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	3fd5f4380f	util/multierr: new package github.com/go-multierror/multierror served us well. But we need a few feature from it (implement Is), and it's not worth maintaining a fork of such a small module. Instead, I did a clean room implementation inspired by its API. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	ff1954cfd9	wgengine/router: use netlink for ip rules on Linux Using temporary netlink fork in github.com/tailscale/netlink until we get the necessary changes upstream in either vishvananda/netlink or jsimonetti/rtnetlink. Updates #391 Change-Id: I6e1de96cf0750ccba53dabff670aca0c56dffb7c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	5dc5bd8d20	cmd/tailscaled, wgengine/netstack: always wire up netstack Even if not in use. We plan to use it for more stuff later. (not for iOS or macOS-GUIs yet; only tailscaled) Change-Id: Idaef719d2a009be6a39f158fd8f57f8cca68e0ee Signed-off-by: Brad Fitzpatrick <bradfitz@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	27e83402a8	cmd/tailscaled: fix depaware.	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	15376f975b	types/wgkey: delete, no longer used. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c41fe182f0	cmd/tailscaled: update depaware. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Josh Bleecher Snyder	640de1921f	depaware: update To fix build broken by `c9bf773312`. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	dc2fbf5877	wgengine/router: start using netlink instead of 'ip' on Linux Converts up, down, add/del addresses, add/del routes. Not yet done: rules. Updates #391 Change-Id: I02554ca07046d18f838e04a626ba99bbd35266fb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	31e4f60047	version: embed VERSION.txt in unstamped version Temporary measure until we switch to Go 1.18. $ go run ./cmd/tailscale version 1.17.0-date.20211022 go version: go1.17 Updates #81 Change-Id: Ic82ebffa5f46789089e5fb9810b3f29e36a47f1a Signed-off-by: Brad Fitzpatrick <bradfitz@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	675f9cd199	cmd/tailscale/cli: add, use log.Fatalf indirection for js/wasm Updates #3157 Change-Id: I97a4962a44bd36313ff68388e3de0d852a8fa869 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	5df7ac70d6	cmd/tailscale/cli: add Stdout, Stderr and output through them So js/wasm can override where those go, without implementing an *os.File pipe pair, etc. Updates #3157 Change-Id: I14ba954d9f2349ff15b58796d95ecb1367e8ba3a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3b5ada1fd8	cmd/tailscale/cli: use errors.Is to check ff's wrapped flag errors And also check from its Parse method. Change-Id: I18754920575254cb6858a16b7954e74aa16483a1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	75de4e9cc2	cmd/tailscale/cli: don't ExitOnError on js/wasm An os.Exit brings down the whole wasm module. Updates #3157 Change-Id: I3daa97fd854715b901f3dbb04b57d841576b60b1 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Maisem Ali	0bf515e780	cmd/tailscale: changes to --advertise-tags should wait for possible reauth. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Aaron Klotz	c6ea282b3f	utils/winutil utils/winutil/vss: add utility function for extracting data from Windows System Restore Point backups. utils/winutil/vss contains just enough COM wrapping to query the Volume Shadow Copy service for snapshots. WalkSnapshotsForLegacyStateDir is the friendlier interface that adds awareness of our actual use case, mapping the snapshots and locating our legacy state directory. Updates #3011 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Joe Tsai	9af27ba829	cmd/cloner: mangle "go:generate" in cloner.go The "go generate" command blindly looks for "//go:generate" anywhere in the file regardless of whether it is truly a comment. Prevent this false positive in cloner.go by mangling the string to look less like "//go:generate". Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Joe Tsai	2fa004a2a0	cmd/cloner: emit go:generate pragmas (#3082 ) Emit a go:generate pragma with the full set of flags passed to cloner. This allows the user to simply run "go generate" at the location of the generate file to reproduce the file. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Aaron Klotz	1991a1ac6a	net/tstun: update tun_windows for wintun 0.14 API revisions, update wireguard-go dependency to 82d2aa87aa623cb5143a41c3345da4fb875ad85d Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Maxime VISONNEAU	4528f448d6	ipn/store/aws, cmd/tailscaled: add AWS SSM ipn.StateStore implementation From https://github.com/tailscale/tailscale/pull/1919 with edits by bradfitz@. This change introduces a new storage provider for the state file. It allows users to leverage AWS SSM parameter store natively within tailscaled, like: $ tailscaled --state=arn:aws:ssm:eu-west-1:123456789:parameter/foo Known limitations: - it is not currently possible to specific a custom KMS key ID RELNOTE=tailscaled on Linux supports using AWS SSM for state Edits-By: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Maxime VISONNEAU <maxime.visonneau@gmail.com>	3 years ago
Brad Fitzpatrick	92215065eb	cmd/derpprobe: fix fmt bug Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	13ef8e3c06	cmd/derpprobe: also do UDP STUN probing Updates #3049 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	2d11503cff	cmd/tailscale: add up --qr to show QR code Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Aaron Klotz	df7899759d	cmd/tailscaled: set the correct flag for receiving Windows session change events This feature wasn't working until I realized that we also need to opt into the events. MSDN wasn't so generous as to make this easy to deduce. Updates #2956 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
David Crawshaw	cc9cf97cbe	cli: web advertise exit node button A couple of gnarly assumptions in this code, as always with the async message thing. UI button is based on the DNS settings in the admin panel. Co-authored-by: Maisem Ali <maisem@tailscale.com> Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	98b3fa78aa	cmd/tailscale: let certs/keys be written to stdout, warn about macOS sandbox Fixes https://twitter.com/SeanHood/status/1443668378468720647 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	2d464cecd1	cmd/tailscale: make netcheck work when logged out Fixes #2993 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	f62e6d83a9	cmd/tailscale: make cert subcommand give hints on access denied Lot of people have been hitting this. Now it says: $ tailscale cert tsdev.corp.ts.net Access denied: cert access denied Use 'sudo tailscale cert' or 'tailscale up --operator=$USER' to not require root. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	b10a55e4ed	cmd/tailscale/cli: fix typo in cert usage	3 years ago
Brad Fitzpatrick	891e7986cc	cmd/tailscale: make cert give hints on usage failure Like mentioning which cert domain(s) are valid.	3 years ago
Brad Fitzpatrick	3618e8d8ac	cmd/tailscaled: rename outbound HTTP proxy flag The old name invited confusion: * is this the HTTP proxy to use ourselves? (no, that's via an environment variable, per proxy conventions) * is this for LetsEncrypt https-to-localhost-http proxying? (no, that'll come later) So rename to super verbose --outbound-http-proxy-listen before the 1.16.0 release to make it clear what it is. It listens (serves) and it's for outbound, not inbound. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	b822b5c798	cmd/tailscale: let up --authkey be of form file:/path/to/secret Fixes #2958 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Aaron Klotz	e016eaf410	cmd/tailscaled: conditionally flush Windows DNS cache on SessionChange For the service, all we need to do is handle the `svc.SessionChange` command. Upon receipt of a `windows.WTS_SESSION_UNLOCK` event, we fire off a goroutine to flush the DNS cache. (Windows expects responses to service requests to be quick, so we don't want to do that synchronously.) This is gated on an integral registry value named `FlushDNSOnSessionUnlock`, whose value we obtain during service initialization. (See [this link](https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nc-winsvc-lphandler_function_ex) for information re: handling `SERVICE_CONTROL_SESSIONCHANGE`.) Fixes #2956 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Brad Fitzpatrick	173bbaa1a1	all: disable TCP keep-alives on iOS/Android Updates #2442 Updates tailscale/corp#2750 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a7cb241db1	cmd/tailscaled: add support for running an HTTP proxy This adds support for tailscaled to be an HTTP proxy server. It shares the same backend dialing code as the SOCK5 server, but the client protocol is HTTP (including CONNECT), rather than SOCKS. Fixes #2289 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	56d8c2da34	cmd/tailscaled: set StateDirectoryMode=0700 in tailscaled.service Updates #2934 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ec2249b6f2	cmd/tailscale: add debug -env Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ace2faf7ec	cmd/tailscale: make debug profiling output - mean stdout Because the macOS CLI runs in the sandbox, including the filesystem, so users would be confused that -cpu-profile=prof.cpu succeeds but doesn't write to their current directory, but rather in some random Library/Containers directory somewhere on the machine (which varies depending on the Mac build type: App Store vs System Extension) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	efb84ca60d	ipn/localapi, cmd/tailscale: add CPU & memory profile support, debug command This was already possible on Linux if you ran tailscaled with --debug (which runs net/http/pprof), but it requires the user have the Go toolchain around. Also, it wasn't possible on macOS, as there's no way to run the IPNExtension with a debug server (it doesn't run tailscaled). And on Windows it's super tedious: beyond what users want to do or what we want to explain. Instead, put it in "tailscale debug" so it works and works the same on all platforms. Then we can ask users to run it when we're debugging something and they can email us the output files. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	27bc4e744c	cmd/tailscale/web: support TLS from env vars. pfSense stores its SSL certificate and key in the PHP config. We wrote PHP code to pull the two out of the PHP config and into environment variables before running "tailscale web". The pfSense web UI is served over https, we need "tailscale web" to also support https in order to put it in an <iframe>. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	9ca334a560	cmd/tailscaled: appease a security scanner There are two reasons this can't ever go to actual logs, but rewrite it to make it happy. Fixes tailscale/corp#2695 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	18086c4cb7	go.mod: bump github.com/klauspost/compress to 1.13.6 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Aaron Klotz	9ebb5d4205	ipn, paths: ensure that the state directory for Windows has the correct perms ProgramData has a permissive ACL. For us to safely store machine-wide state information, we must set a more restrictive ACL on our state directory. We set the ACL so that only talescaled's user (ie, LocalSystem) and the Administrators group may access our directory. We must include Administrators to ensure that logs continue to be easily accessible; omitting that group would force users to use special tools to log in interactively as LocalSystem, which is not ideal. (Note that the ACL we apply matches the ACL that was used for LocalSystem's AppData\Local). There are two cases where we need to reset perms: One is during migration from the old location to the new. The second case is for clean installations where we are creating the file store for the first time. Updates #2856 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	3 years ago
Josh Bleecher Snyder	b14db5d943	util/codegen: reorder AssertStructUnchanged args The fully qualified name of the type is thisPkg.tname, so write the args like that too. Suggested-by: Joe Tsai <joetsai@digital-static.net> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	3cd85c0ca6	util/codegen: add ContainsPointers And use it in cmd/cloner. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	d5a0a4297e	cmd/cloner: unify switch cases And in the process, fix a bug: The fmt formatting was being applied by writef, not fmt.Sprintf, thus emitting a MISSING string. And there's no guarantee that fmt will be imported in the generated code. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	d8a8f70000	util/codegen: add NamedTypes And use it in cmd/cloner. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	367a973dc2	cmd/cloner: delete some debug code Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	081be3e96b	cmd/cloner: simplify code Change from a single-case type switch to a type assertion with an early return. That exposes that the name arg to gen is unneeded. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	d5ab18b2e6	cmd/cloner: add Clone context to regen struct assignments Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	618376dbc0	util/codegen: add AssertStructUnchanged Refactored out from cmd/cloner. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	fb66ff7c78	util/codegen: add package This is a package for shared utilities used in doing codegen programs. The inaugural API is for writing gofmt'd code to a file. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	4549d3151c	cmd/tailscale: make status show health check problems Fixes #2775 RELNOTE=tailscale status now shows health check problems Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago

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916 Commits (f52a659076cc7870563427367b31aaafd0b30a6f)