649 Commits (a54d13294f9a995f860099430d56acf05377a9e3)

Author	SHA1	Message	Date
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
Josh Bleecher Snyder	4bbf5a8636	cmd/cloner: reduce diff noise when changing command ... Spelling out the command to run for every type means that changing the command makes for a large, repetitive diff. Stop doing that. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	865d8c0d23	cmd: upgrade to ffcli v3 ... None of the breaking changes from v2 to v3 are relevant to us. Signed-off-by: Josh Bleecher Snyder <josh@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	4f648e6fcc	cmd/tailscaled: disable netns earlier in userspace-networking mode ... The earlier 382b349c54 was too late, as engine creation itself needed to listen on things. Fixes #2827 Updates #2822 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	382b349c54	cmd/tailscaled: disable netns in userspace-networking mode ... Updates #2827 Updates #2822 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	640134421e	all: update tests to use tstest.MemLogger ... And give MemLogger a mutex, as one caller had, which does match the logf contract better. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7bfd4f521d	cmd/tailscale: fix "tailscale ip $self-host-hostname" ... And in the process, fix the related confusing error messages from pinging your own IP or hostname. Fixes #2803 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	4917a96aec	cmd/tailscale: fix typo/pasteo in error message text ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Dave Anderson	980acc38ba	types/key: add a special key with custom serialization for control private keys (#2792) ... * Revert "Revert "types/key: add MachinePrivate and MachinePublic."" This reverts commit 61c3b98a24. Signed-off-by: David Anderson <danderson@tailscale.com> * types/key: add ControlPrivate, with custom serialization. ControlPrivate is just a MachinePrivate that serializes differently in JSON, to be compatible with how the Tailscale control plane historically serialized its private key. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	61c3b98a24	Revert "types/key: add MachinePrivate and MachinePublic." ... Broke the tailscale control plane due to surprise different serialization. This reverts commit 4fdb88efe1.	3 years ago
David Anderson	4fdb88efe1	types/key: add MachinePrivate and MachinePublic. ... Plumb throughout the codebase as a replacement for the mixed use of tailcfg.MachineKey and wgkey.Private/Public. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	99a1c74a6a	metrics: optimize CurrentFDs to not allocate on Linux ... It was 50% of our allocs on one of our servers. (!!) Updates #2784 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.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
Maisem Ali	0842e2f45b	ipn/store: add ability to store data as k8s secrets. ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	7f29dcaac1	cmd/tailscale/cli: make up block until state Running, not just Starting ... At "Starting", the DERP connection isn't yet up. After the first netmap and DERP connect, then it transitions into "Running". Fixes #2708 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	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	3c8ca4b357	client/tailscale, cmd/tailscale/cli: move version mismatch check to CLI ... So people can use the package for whois checks etc without version skew errors. The earlier change faa891c1f2 for #1905 was a bit too aggressive. Fixes #2757 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	21cb0b361f	safesocket: add connect retry loop to wait for tailscaled ... Updates #2708 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
David Anderson	97693f2e42	wgengine/magicsock: delete legacy AddrSet endpoints. ... Instead of using the legacy codepath, teach discoEndpoint to handle peers that have a home DERP, but no disco key. We can still communicate with them, but only over DERP. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Maisem Ali	fd4838dc57	wgengine/userspace: add support to automatically enable/disable the tailscale ... protocol in BIRD, when the node is a primary subnet router as determined by control. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Will Lachance	a35c3ba221	cmd/tailscale: fix truncated characters in web controller (#2722) ... Fixes #2204 Signed-off-by: William Lachance <wlach@protonmail.com> Co-authored-by: William Lachance <wlach@protonmail.com> Co-authored-by: Ross Zurowski <ross@rosszurowski.com>	3 years ago
Brad Fitzpatrick	4aab083cae	cmd/tailscaled: add debug flag to print interfaces just once ... It previously only had a polling monitor mode. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	47045265b9	hostinfo: add SetDeviceModel setter, move remaining code from controlclient ... Updates tailscale/corp#1959 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	4ff0757d44	cmd/testcontrol: add test control server ... This is useful for manual performance testing of networks with many nodes. I imagine it'll grow more knobs over time. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	edb338f542	cmd/tailscale: fix sporadic 'context canceled' error on 'up' ... Fixes #2333 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	9f62cc665e	tailscaled: try migrating old state on synology devices ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Brad Fitzpatrick	b7ae529ecc	client/tailscale: make GetCertificate guess cert if SNI lacks dots ... Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	d5e1abd0c4	cmd/tailscale/cli: only write cert file if it changed ... Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	57b794c338	ipn/localapi: move cert fetching code to localapi, cache, add cert subcommand ... Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Matt Layher	8ab44b339e	net/tstun: use unix.Ifreq type for Linux TAP interface configuration ... Signed-off-by: Matt Layher <mdlayher@gmail.com>	3 years ago
Josh Bleecher Snyder	d2aa144dcc	syncs: bump known good version to include Go 1.17 ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	25e060a841	cmd/tailscale/cli: fix cert fetch WaitOrder retry loop, misc cleanups ... Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	b2eea1ee00	cmd/tailscale/cli: make cert fetch registration automatic, show valid domains ... Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	3e7ff5ff98	cmd/tailscaled: enable hybrid netstack mode for FreeBSD. ... Allows FreeBSD to function as an exit node in the same way that Windows and Tailscaled-on-MacOS do. RELNOTE=FreeBSD can now function as an exit node. Fixes https://github.com/tailscale/tailscale/issues/2498 Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	ec9f3f4cc0	cmd/tailscale: update depaware ... Missing from prior commit. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c68a12afe9	cmd/tailscale: add temporary debug command for getting DNS-01 LetsEncrypt cert ... Not even close to usable or well integrated yet, but submitting this before it bitrots or I lose it. Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	d2d55bd63c	cmd/microproxy: delete. ... Thank goodness. Fixes #2635 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Josh Bleecher Snyder	a4e19f2233	version: remove rsc.io/goversion dependency ... rsc.io/goversion is really expensive. Running version.ReadExe on tailscaled on darwin allocates 47k objects, almost 11mb. All we want is the module info. For that, all we need to do is scan through the binary looking for the magic start/end strings and then grab the bytes in between them. We can do that easily and quickly with nothing but a 64k buffer. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Crawshaw	360223fccb	types/dnstype: introduce new package for Resolver ... So the type can be used in net/dns without introducing a tailcfg dependency. For #2596 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Josh Bleecher Snyder	eee6b85b9b	cmd/tailscaled: don't require root for --cleanup ... Without this, the integration tests fail locally for me: --- FAIL: TestCollectPanic (7.61s) integration.go:74: built [tailscale.com/cmd/tailscaled tailscale.com/cmd/tailscale] in 1.59s integration_test.go:102: initial run: tailscaled requires root; use sudo tailscaled (or use --tun=userspace-networking) integration_test.go:108: cleanup failed: exit status 1: "tailscaled requires root; use sudo tailscaled (or use --tun=userspace-networking)\n" stuntest.go:64: STUN server shutdown FAIL FAIL tailscale.com/tstest/integration 9.678s FAIL Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	a5da4ed981	all: gofmt with Go 1.17 ... This adds "//go:build" lines and tidies up existing "// +build" lines. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	a729070252	net/tstun: add start of Linux TAP support, with DHCP+ARP server ... Still very much a prototype (hard-coded IPs, etc) but should be non-invasive enough to submit at this point and iterate from here. Updates #2589 Co-Author: David Crawshaw <crawshaw@tailscale.com> Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	fd7b738e5b	derp: use pad32 package for padding, reduce duplication ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	fdc081c291	net/portmapper: fix UPnP probing, work against all ports ... Prior to Tailscale 1.12 it detected UPnP on any port. Starting with Tailscale 1.11.x, it stopped detecting UPnP on all ports. Then start plumbing its discovered Location header port number to the code that was assuming port 5000. Fixes #2109 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	f3c96df162	ipn/ipnstate: move tailscale status "active" determination to tailscaled ... Fixes #2579 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	1db9032ff5	cmd/tailscaled: let portmap debug mode have an gateway/IP override knob ... For testing pfSense clients "behind" pfSense on Digital Ocean where the main interface still exists. This is easier for debugging. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	31ea073a73	cmd/tailscaled: add debug -portmap mode ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	3e039daf95	logpolicy: actually collect panics ... (Written with Josh) For #2544 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	d37451bac6	cmd/derper: dial VPC address with right context ... Fix bug from just-submitted e422e9f4c9. Updates #2414 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	e422e9f4c9	cmd/derper: mesh over VPC network ... Updates #2414 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	9da4181606	tstime/rate: new package ... This is a simplified rate limiter geared for exactly our needs: A fast, mono.Time-based rate limiter for use in tstun. It was generated by stripping down the x/time/rate rate limiter to just our needs and switching it to use mono.Time. It removes one time.Now call per packet. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	8a3d52e882	wgengine/magicsock: use mono.Time ... magicsock makes multiple calls to Now per packet. Move to mono.Now. Changing some of the calls to use package mono has a cascading effect, causing non-per-packet call sites to also switch. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	c2202cc27c	net/tstun: use mono.Time ... There's a call to Now once per packet. Move to mono.Now. Though the current implementation provides high precision, we document it to be coarse, to preserve the ability to switch to a coarse monotonic time later. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Aaron Bieber	c179b9b535	cmd/tsshd: switch from github.com/kr/pty to github.com/creack/pty ... The kr/pty module moved to creack/pty per the kr/pty README[1]. creack/pty brings in support for a number of OS/arch combos that are lacking in kr/pty. Run `go mod tidy` while here. [1] https://github.com/kr/pty/blob/master/README.md Signed-off-by: Aaron Bieber <aaron@bolddaemon.com>	3 years ago
Brad Fitzpatrick	7b9f02fcb1	cmd/tailscale/cli: document that empty string disable exit nodes, routes ... Updates #2529 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Joe Tsai	d145c594ad	util/deephash: improve cycle detection (#2470) ... The previous algorithm used a map of all visited pointers. The strength of this approach is that it quickly prunes any nodes that we have ever visited before. The detriment of the approach is that pruning is heavily dependent on the order that pointers were visited. This is especially relevant for hashing a map where map entries are visited in a non-deterministic manner, which would cause the map hash to be non-deterministic (which defeats the point of a hash). This new algorithm uses a stack of all visited pointers, similar to how github.com/google/go-cmp performs cycle detection. When we visit a pointer, we push it onto the stack, and when we leave a pointer, we pop it from the stack. Before visiting a pointer, we first check whether the pointer exists anywhere in the stack. If yes, then we prune the node. The detriment of this approach is that we may hash a node more often than before since we do not prune as aggressively. The set of visited pointers up until any node is only the path of nodes up to that node and not any other pointers that may have been visited elsewhere. This provides us deterministic hashing regardless of visit order. We can now delete hashMapFallback and associated complexity, which only exists because the previous approach was non-deterministic in the presence of cycles. This fixes a failure of the old algorithm where obviously different values are treated as equal because the pruning was too aggresive. See https://github.com/tailscale/tailscale/issues/2443#issuecomment-883653534 The new algorithm is slightly slower since it prunes less aggresively: name old time/op new time/op delta Hash-8 66.1µs ± 1% 68.8µs ± 1% +4.09% (p=0.000 n=19+19) HashMapAcyclic-8 63.0µs ± 1% 62.5µs ± 1% -0.76% (p=0.000 n=18+19) TailcfgNode-8 9.79µs ± 2% 9.88µs ± 1% +0.95% (p=0.000 n=19+17) HashArray-8 643ns ± 1% 653ns ± 1% +1.64% (p=0.000 n=19+19) However, a slower but more correct algorithm seems more favorable than a faster but incorrect algorithm. Signed-off-by: Joe Tsai <joetsai@digital-static.net>	3 years ago
Brad Fitzpatrick	ed8587f90d	wgengine/router: take a link monitor ... Prep for #1591 which will need to make Linux's router react to changes that the link monitor observes. The router package already depended on the monitor package transitively. Now it's explicit. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7f7a81e5ae	cmd/tailscaled: add func to create ipnserver.Opts ... To unify the Windows service and non-service/non-Windows paths a bit. And provides a way to make Linux act like Windows for testing. (notably, for testing the fix to #2137) One perhaps visible change of this is that tailscaled.exe when run in cmd.exe/powershell (not as a Windows Service) no longer uses the "_daemon" autostart key. But in addition to being naturally what falls out of this change, that's also what Windows users would likely want, as otherwise the unattended mode user is ignored when the "_daemon" autostart key is specified. Notably, this would let people debug what their normally-run-as-a-service tailscaled is doing, even when they're running in Unattended Mode. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	87244eda3f	cmd/tailscale/cli: allow effective GOOS to be changed for integration tests ... Adds TS_DEBUG_UP_FLAG_GOOS for integration tests to make "tailscale up" act like other OSes. For an upcoming change to test #2137. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	4dbbd0aa4a	cmd/addlicense: add command to add licenseheaders to generated code ... And use it to make our stringer invocations match the existing code. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	ec4d721572	cmd/tailscaled: use state key constant from ipn package ... Rather than redefining it again. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	e2eaae8224	cmd/derpprobe: add in a delay to wait for mesh info to sync	3 years ago
julianknodt	1bb6abc604	net/portmapper: add upnp port mapping ... Add in UPnP portmapping, using goupnp library in order to get the UPnP client and run the portmapping functions. This rips out anywhere where UPnP used to be in portmapping, and has a flow separate from PMP and PCP. RELNOTE=portmapper now supports UPnP mappings Fixes #682 Updates #2109 Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago