2520 Commits (0a655309c6fccaf7f141d3f5293a31a1c4eab479)

 

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Author	SHA1	Message	Date
Brad Fitzpatrick	366b3d3f62	ipn{,/ipnserver}: delay JSON marshaling of ipn.Notifies ... If nobody is connected to the IPN bus, don't burn CPU & waste allocations (causing more GC) by encoding netmaps for nobody. This will notably help hello.ipn.dev. Updates tailscale/corp#1773 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	dc32b4695c	util/dnsname: normalize leading dots in ToFQDN. ... Fixes #1888. Signed-off-by: David Anderson <dave@natulte.net>	4 years ago
Josh Bleecher Snyder	c0a70f3a06	go.mod: pull in wintun alignment fix from upstream wireguard-go ... 6cd106ab13...030c638da3 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Maisem Ali	7027fa06c3	wf: implement windows firewall using inet.af/wf. ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Josh Bleecher Snyder	8d2a90529e	wgengine/bench: hold lock in TrafficGen.GotPacket while calling first packet callback ... Without any synchronization here, the "first packet" callback can be delayed indefinitely, while other work continues. Since the callback starts the benchmark timer, this could skew results. Worse, if the benchmark manages to complete before the benchmark timer begins, it'll cause a data race with the benchmark shutdown performed by package testing. That is what is reported in #1881. This is a bit unfortunate, in that it means that users of TrafficGen have to be careful to keep this callback speedy and lightweight and to avoid deadlocks. Fixes #1881 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	a72fb7ac0b	wgengine/bench: handle multiple Engine status callbacks ... It is possible to get multiple status callbacks from an Engine. We need to wait for at least one from each Engine. Without limiting to one per Engine, wait.Wait can exit early or can panic due to a negative counter. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	6618e82ba2	wgengine/bench: close Engines on benchmark completion ... This reduces the speed with which these benchmarks exhaust their supply fds. Not to zero unfortunately, but it's still helpful when doing long runs. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	e9066ee625	types/wgkey: optimize Key.ShortString ... name old time/op new time/op delta ShortString-8 82.6ns ± 0% 15.6ns ± 0% -81.07% (p=0.008 n=5+5) name old alloc/op new alloc/op delta ShortString-8 104B ± 0% 8B ± 0% -92.31% (p=0.008 n=5+5) name old allocs/op new allocs/op delta ShortString-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.008 n=5+5) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	7cd4766d5e	types/wgkey: add BenchmarkShortString ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	3173c5a65c	net/interface: remove darwin fetchRoutingTable workaround ... Fixed upstream. Bump dep. Updates #1345 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	ceb568202b	tailcfg: optimize keyMarshalText ... This function accounted for ~1% of all allocs by tailscaled. It is trivial to improve, so may as well. name old time/op new time/op delta KeyMarshalText-8 197ns ± 0% 47ns ± 0% -76.12% (p=0.016 n=4+5) name old alloc/op new alloc/op delta KeyMarshalText-8 200B ± 0% 80B ± 0% -60.00% (p=0.008 n=5+5) name old allocs/op new allocs/op delta KeyMarshalText-8 5.00 ± 0% 1.00 ± 0% -80.00% (p=0.008 n=5+5) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	5190435d6e	cmd/tailscale: rewrite the "up" checker, fix bugs ... The old way was way too fragile and had felt like it had more special cases than normal cases. (see #1874, #1860, #1834, etc) It became very obvious the old algorithm didn't work when we made the output be pretty and try to show the user the command they need to run in 5ecc7c7200 for #1746) The new algorithm is to map the prefs (current and new) back to flags and then compare flags. This nicely handles the OS-specific flags and the n:1 and 1:n flag:pref cases. No change in the existing already-massive test suite, except some ordering differences (the missing items are now sorted), but some new tests are added for behavior that was broken before. In particular, it now: * preserves non-pref boolean flags set to false, and preserves exit node IPs (mapping them back from the ExitNodeID pref, as well as ExitNodeIP), * doesn't ignore --advertise-exit-node when doing an EditPrefs call (#1880) * doesn't lose the --operator on the non-EditPrefs paths (e.g. with --force-reauth, or when the backend was not in state Running). Fixes #1880 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	e72ed3fcc2	ipn/{ipnlocal,ipnstate}: add PeerStatus.ID stable ID to status --json output ... Needed for the "up checker" to map back from exit node stable IDs (the ipn.Prefs.ExitNodeID) back to an IP address in error messages. But also previously requested so people can use it to then make API calls. The upcoming "tailscale admin" subcommand will probably need it too. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	3c8e230ee1	Revert "net/dns: set IPv4 auto mode in NM, so it lets us set DNS." ... This reverts commit 7d16c8228b. I have no idea how I ended up here. The bug I was fixing with this change fails to reproduce on Ubuntu 18.04 now, and this change definitely does break 20.04, 20.10, and Debian Buster. So, until we can reliably reproduce the problem this was meant to fix, reverting. Part of #1875 Signed-off-by: David Anderson <dave@natulte.net>	4 years ago
David Anderson	a3b15bdf7e	.github: remove verbose issue templates, add triage label. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	5bd38b10b4	net/dns: log the correct error when NM Reapply fails. ... Found while debugging #1870. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	7d16c8228b	net/dns: set IPv4 auto mode in NM, so it lets us set DNS. ... Part of #1870. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	77e2375501	net/dns: don't try to configure LLMNR or mdns in NetworkManager. ... Fixes #1870. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	e78e26b6fb	cmd/tailscale: fix another up warning with exit nodes ... The --advertise-routes and --advertise-exit-node flags both mutating one pref is the gift that keeps on giving. I need to rewrite the this up warning code to first map prefs back to flag values and then just compare flags instead of comparing prefs, but this is the minimal fix for now. This also includes work on the tests, to make them easier to write (and more accurate), by letting you write the flag args directly and have that parse into the upArgs/MaskedPrefs directly, the same as the code, rather than them being possibly out of sync being written by hand. Fixes https://twitter.com/EXPbits/status/1390418145047887877 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	ddd85b9d91	wgengine/magicsock: rename discoEndpoint.wgEndpointHostPort to wgEndpoint ... Fields rename only. Part of the general effort to make our code agnostic about endpoint formatting. It's just a name, but it will soon be a misleading one; be more generic. Do this as a separate commit because it generates a lot of whitespace changes. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	e0bd3cc70c	wgengine/magicsock: use netaddr.MustParseIPPrefix ... Delete our bespoke helper. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	bc68e22c5b	all: s/CreateEndpoint/ParseEndpoint/ in docs ... Upstream wireguard-go renamed the interface method from CreateEndpoint to ParseEndpoint. I missed some comments. Fix them. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	9bce1b7fc1	wgengine/wgcfg: make device test endpoint-format-agnostic ... By using conn.NewDefaultBind, this test requires that our endpoints be comprehensible to wireguard-go. Instead, use a no-op bind that treats endpoints as opaque strings. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	73ad1f804b	wgengine/wgcfg: use autogenerated Clone methods ... Delete the manually written ones named Copy. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	05bed64772	types/wgkey: simplify Key.UnmarshalJSON ... Instead of calling ParseHex, do the hex.Decode directly. name old time/op new time/op delta UnmarshalJSON-8 86.9ns ± 0% 42.6ns ± 0% -50.94% (p=0.000 n=15+14) name old alloc/op new alloc/op delta UnmarshalJSON-8 128B ± 0% 0B -100.00% (p=0.000 n=15+15) name old allocs/op new allocs/op delta UnmarshalJSON-8 2.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	a0dacba877	wgengine/magicsock: simplify legacy endpoint DstToString ... Legacy endpoints (addrSet) currently reconstruct their dst string when requested. Instead, store the dst string we were given to begin with. In addition to being simpler and cheaper, this makes less code aware of how to interpret endpoint strings. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	777c816b34	wgengine/wgcfg: return better errors from DeviceConfig, ReconfigDevice ... Prefer the error from the actual wireguard-go device method call, not {To,From}UAPI, as those tend to be less interesting I/O errors. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	1f6c4ba7c3	wgengine/wgcfg: prevent ReconfigDevice from hanging on error ... When wireguard-go's UAPI interface fails with an error, ReconfigDevice hangs. Fix that by buffering the channel and closing the writer after the call. The code now matches the corresponding code in DeviceConfig, where I got it right. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	462f7e38fc	tailcfg: fix typo in comment ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	ed63a041bf	wgengine/userspace: delete HandshakeDone ... It is unused, and has been since early Feb 2021 (Tailscale 1.6). We can't get delete the DeviceOptions entirely yet; first #1831 and #1839 need to go in, along with some wireguard-go changes. Deleting this chunk of code now will make the later commits more clearly correct. Pingers can now go too. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	4b14f72f1f	VERSION.txt: the 1.9.x dev cycle hath begun	4 years ago
Brad Fitzpatrick	b8fb8264a5	wgengine/netstack: avoid delivering incoming packets to both netstack + host ... The earlier eb06ec172f fixed the flaky SSH issue (tailscale/corp#1725) by making sure that packets addressed to Tailscale IPs in hybrid netstack mode weren't delivered to netstack, but another issue remained: All traffic handled by netstack was also potentially being handled by the host networking stack, as the filter hook returned "Accept", which made it keep processing. This could lead to various random racey chaos as a function of OS/firewalls/routes/etc. Instead, once we inject into netstack, stop our caller's packet processing. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	7f2eb1d87a	net/tstun: fix TUN log spam when ACLs drop a packet ... Whenever we dropped a packet due to ACLs, wireguard-go was logging: Failed to write packet to TUN device: packet dropped by filter Instead, just lie to wireguard-go and pretend everything is okay. Fixes #1229 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2585edfaeb	cmd/tailscale: fix tailscale up --advertise-exit-node validation ... Fixes #1859 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1a1123d461	wgengine: fix pendopen debug to not track SYN+ACKs, show Node.Online state ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b2de34a45d	version: bump date ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	eb06ec172f	wgengine/netstack: don't pass non-subnet traffic to netstack in hybrid mode ... Fixes tailscale/corp#1725 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	7629cd6120	net/tsaddr: add NewContainsIPFunc (move from wgengine) ... I want to use this from netstack but it's not exported. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	78d4c561b5	types/logger: add key grinder stats lines to rate-limiting exemption list ... Updates #1749 Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	f116a4c44f	types/logger: fix rate limiter allowlist ... Upstream wireguard-go renamed the interface method from CreateEndpoint to ParseEndpoint. I updated the log call site but not the allowlist. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	be56aa4962	workflows: execute benchmarks ... #1817 removed the only place in our CI where we executed our benchmark code. Fix that by executing it everywhere. The benchmarks are generally cheap and fast, so this should add minimal overhead. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	52e1031428	cmd/tailscale: gofmt ... From 6d10655dc3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	ac75958d2e	workflows: run staticcheck on more platforms ... To prevent issues like #1786, run staticcheck on the primary GOOSes: linux, mac, and windows. Windows also has a fair amount of GOARCH-specific code. If we ever have GOARCH staticcheck failures on other GOOSes, we can expand the test matrix further. This requires installing the staticcheck binary so that we can execute it with different GOOSes. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Avery Pennarun	6d10655dc3	ipnlocal: accept a new opts.UpdatePrefs field. ... This is needed because the original opts.Prefs field was at some point subverted for use in frontend->backend state migration for backward compatibility on some platforms. We still need that feature, but we also need the feature of providing the full set of prefs from `tailscale up`, *not* including overwriting the prefs.Persist keys, so we can't use the original field from `tailscale up`. `tailscale up` had attempted to compensate for that by doing SetPrefs() before Start(), but that violates the ipn.Backend contract, which says you should call Start() before anything else (that's why it's called Start()). As a result, doing SetPrefs({ControlURL=..., WantRunning=true}) would cause a connection to the *previous* control server (because WantRunning=true), and then connect to the *new* control server only after running Start(). This problem may have been avoided before, but only by pure luck. It turned out to be relatively harmless since the connection to the old control server was immediately closed and replaced anyway, but it created a race condition that could have caused spurious notifications or rejected keys if the server responded quickly. As already covered by existing TODOs, a better fix would be to have Start() get out of the business of state migration altogether. But we're approaching a release so I want to make the minimum possible fix. Fixes #1840. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Josh Bleecher Snyder	7dbbe0c7c7	cmd/tailscale/cli: fix running from Xcode ... We were over-eager in running tailscale in GUI mode. f42ded7acf fixed that by checking for a variety of shell-ish env vars and using those to force us into CLI mode. However, for reasons I don't understand, those shell env vars are present when Xcode runs Tailscale.app on my machine. (I've changed no configs, modified nothing on a brand new machine.) Work around that by adding an additional "only in GUI mode" check. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	4066c606df	ipn/ipnlocal: update peerapi logging of received PUTs ... Clarify direction and add duration. (per chat with Avery) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	d3ba860ffd	syncs: stop running TestWatchMultipleValues on CI ... It's flaky, and not just on Windows. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	f5bccc0746	ipn/ipnlocal: redact more errors ... Updates tailscale/corp#1636 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	47ebd1e9a2	wgengine/router: use net.IP.Equal instead of bytes.Equal to compare IPs ... Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	737151ea4a	safesocket: delete unused function ... Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago