2464 Commits (5666663370f2939c8705bf1a73aa88c0114877f9)

 

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Author	SHA1	Message	Date
Josh Bleecher Snyder	5666663370	net/packet: use netaddr AppendTo methods ... This lets us remote the types/strbuilder package, which had only a single user. And it's faster. name old time/op new time/op delta String/tcp4-8 175ns ± 0% 58ns ± 1% -66.95% (p=0.000 n=10+9) String/tcp6-8 226ns ± 1% 136ns ± 1% -39.85% (p=0.000 n=10+10) String/udp4-8 175ns ± 1% 58ns ± 1% -67.01% (p=0.000 n=10+9) String/udp6-8 230ns ± 1% 140ns ± 0% -39.32% (p=0.000 n=10+9) String/icmp4-8 164ns ± 0% 50ns ± 1% -69.89% (p=0.000 n=10+10) String/icmp6-8 217ns ± 1% 129ns ± 0% -40.46% (p=0.000 n=10+10) String/igmp-8 196ns ± 0% 56ns ± 1% -71.32% (p=0.000 n=10+10) String/unknown-8 2.06ns ± 1% 2.06ns ± 2% ~ (p=0.985 n=10+10) name old alloc/op new alloc/op delta String/tcp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/tcp6-8 168B ± 0% 96B ± 0% -42.86% (p=0.000 n=10+10) String/udp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/udp6-8 168B ± 0% 96B ± 0% -42.86% (p=0.000 n=10+10) String/icmp4-8 32.0B ± 0% 32.0B ± 0% ~ (all equal) String/icmp6-8 104B ± 0% 64B ± 0% -38.46% (p=0.000 n=10+10) String/igmp-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) String/unknown-8 0.00B 0.00B ~ (all equal) name old allocs/op new allocs/op delta String/tcp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/tcp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/udp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/udp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/icmp4-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/icmp6-8 3.00 ± 0% 1.00 ± 0% -66.67% (p=0.000 n=10+10) String/igmp-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) String/unknown-8 0.00 0.00 ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	d6d1951897	net/packet: add BenchmarkString ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	df350e2069	ipn/ipnlocal: initialize DNS config maps unconditionally. ... Fixes #1963. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	eb9757a290	go.mod: upgrade netaddr to get AppendTo methods ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	cd54792fe9	internal/deephash: add a few more benchmarking map entries ... Typical maps in production are considerably longer. This helps benchmarks more accurately reflect the costs per key vs the costs per map in deephash. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Crawshaw	293a2b11cd	ipn: allow b to be nil in NewBackendServer ... A couple of code paths in ipnserver use a NewBackendServer with a nil backend just to call the callback with an encapsulated error message. This covers a panic case seen in logs. For #1920 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Anderson	e2dcf63420	net/dns: replace AuthoritativeSuffixes with nil Route entries. ... This leads to a cleaner separation of intent vs. implementation (Routes is now the only place specifying who handles DNS requests), and allows for cleaner expression of a configuration that creates MagicDNS records without serving them to the OS. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	6690f86ef4	net/dns: always offer MagicDNS records at 100.100.100.100. ... Fixes #1886. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
simenghe	dd0b690e7b	Added new Addresses / AllowedIPs fields to testcontrol when creating tailcfg.Node (#1948) ... * Added new Addresses / AllowedIPs fields to testcontrol when creating new &tailcfg.Node Signed-off-by: Simeng He <simeng@tailscale.com> * Added single node test to check Addresses and AllowedIPs Signed-off-by: Simeng He <simeng@tailscale.com> Co-authored-by: Simeng He <simeng@tailscale.com>	4 years ago
David Anderson	85df1b0fa7	go.mod: bump wireguard-go. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Maisem Ali	234cc87f48	cmd/tailscaled: use the wf package instead of wireguard-windows/firewall ... Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Josh Bleecher Snyder	25df067dd0	all: adapt to opaque netaddr types ... This commit is a mishmash of automated edits using gofmt: gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w . gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w . gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w . gofmt -r 'a.IP.As16 -> a.IP().As16' -w . gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w . gofmt -r 'a.IP.As4 -> a.IP().As4' -w . gofmt -r 'a.IP.String -> a.IP().String' -w . And regexps: \w*(.*)\.Port = (.*) -> $1 = $1.WithPort($2) \w*(.*)\.IP = (.*) -> $1 = $1.WithIP($2) And lots of manual fixups. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	4f92f405ee	scripts: fix up installer script comments. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	0e9ea9f779	scripts: detect curl vs. wget and use the right one. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	783f125003	scripts: use codenames for ubuntu, since that's what our repo uses. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	01a359cec9	scripts: add an install script. ... The script detects one of the supported OS/version combos, and issues the right install instructions for it. Co-authored-by: Christine Dodrill <xe@tailscale.com> Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	5b52b64094	tsnet: add Tailscale-as-a-library package ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	6f62bbae79	cmd/tailscale: make ping --until-direct require direct connection to exit 0 ... If --until-direct is set, the goal is to make a direct connection. If we failed at that, say so, and exit with an error. RELNOTE=tailscale ping --until-direct (the default) now exits with a non-zero exit code if no direct connection was established. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Avery Pennarun	6fd4e8d244	ipnlocal: fix switching users while logged in + Stopped. ... This code path is very tricky since it was originally designed for the "re-authenticate to refresh my keys" use case, which didn't want to lose the original session even if the refresh cycle failed. This is why it acts differently from the Logout(); Login(); case. Maybe that's too fancy, considering that it probably never quite worked at all, for switching between users without logging out first. But it works now. This was more invasive than I hoped, but the necessary fixes actually removed several other suspicious BUG: lines from state_test.go, so I'm pretty confident this is a significant net improvement. Fixes tailscale/corp#1756. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	6307a9285d	controlclient: update Persist.LoginName when it changes. ... Well, that was anticlimactic. Fixes tailscale/corp#461. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Avery Pennarun	285d0e3b4d	ipnlocal: fix deadlock in RequestEngineStatusAndWait() error path. ... If the engine was shutting down from a previous session (e.closing=true), it would return an error code when trying to get status. In that case, ipnlocal would never unblock any callers that were waiting on the status. Not sure if this ever happened in real life, but I accidentally triggered it while writing a test. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Brad Fitzpatrick	5a7c6f1678	tstest/integration{,/testcontrol}: add node update support, two node test ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d32667011d	tstest/integration: build test binaries with -race if test itself is ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	314d15b3fb	version: add func IsRace to report whether race detector enabled ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ed9d825552	tstest/integration: fix integration test on linux/386 ... Apparently can't use GOBIN with GOARCH. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c0158bcd0b	tstest/integration{,/testcontrol}: add testcontrol.RequireAuth mode, new test ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	ebcd7ab890	wgengine: remove wireguard-go DeviceOptions ... We no longer need them. This also removes the 32 bytes of prefix junk before endpoints. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	aacb2107ae	all: add extra information to serialized endpoints ... magicsock.Conn.ParseEndpoint requires a peer's public key, disco key, and legacy ip/ports in order to do its job. We currently accomplish that by: * adding the public key in our wireguard-go fork * encoding the disco key as magic hostname * using a bespoke comma-separated encoding It's a bit messy. Instead, switch to something simpler: use a json-encoded struct containing exactly the information we need, in the form we use it. Our wireguard-go fork still adds the public key to the address when it passes it to ParseEndpoint, but now the code compensating for that is just a couple of simple, well-commented lines. Once this commit is in, we can remove that part of the fork and remove the compensating code. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	98cae48e70	wgengine/wglog: optimize wireguardGoString ... The new code is ugly, but much faster and leaner. name old time/op new time/op delta SetPeers-8 7.81µs ± 1% 3.59µs ± 1% -54.04% (p=0.000 n=9+10) name old alloc/op new alloc/op delta SetPeers-8 7.68kB ± 0% 2.53kB ± 0% -67.08% (p=0.000 n=10+10) name old allocs/op new allocs/op delta SetPeers-8 237 ± 0% 99 ± 0% -58.23% (p=0.000 n=10+10) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	9356912053	wgengine/wglog: add BenchmarkSetPeer ... Because it showed up on hello profiles. Cycle through some moderate-sized sets of peers. This should cover the "small tweaks to netmap" and the "up/down cycle" cases. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	36a26e6a71	internal/deephash: rename from deepprint ... Yes, it printed, but that was an implementation detail for hashing. And coming optimization will make it print even less. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	6ab2176dc7	internal/deepprint: improve benchmark ... This more closely matches our real usage of deepprint. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	712774a697	internal/deepprint: close struct curly parens ... Not that it matters, but we were missing a close parens. It's cheap, so add it. name old time/op new time/op delta Hash-8 6.64µs ± 0% 6.67µs ± 1% +0.42% (p=0.008 n=9+10) name old alloc/op new alloc/op delta Hash-8 1.54kB ± 0% 1.54kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta Hash-8 37.0 ± 0% 37.0 ± 0% ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	8368bac847	internal/deepprint: stop printing struct field names ... The struct field names don't change within a single run, so they are irrelevant. Use the field index instead. name old time/op new time/op delta Hash-8 6.52µs ± 0% 6.64µs ± 0% +1.91% (p=0.000 n=6+9) name old alloc/op new alloc/op delta Hash-8 1.67kB ± 0% 1.54kB ± 0% -7.66% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Hash-8 53.0 ± 0% 37.0 ± 0% -30.19% (p=0.000 n=10+10) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	dfa0c90955	internal/deepprint: replace Fprintf(w, const) with w.WriteString ... name old time/op new time/op delta Hash-8 7.77µs ± 0% 6.29µs ± 1% -19.11% (p=0.000 n=9+10) name old alloc/op new alloc/op delta Hash-8 1.67kB ± 0% 1.67kB ± 0% ~ (all equal) name old allocs/op new allocs/op delta Hash-8 53.0 ± 0% 53.0 ± 0% ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	d4f805339e	internal/deepprint: special-case some common types ... These show up a lot in our data structures. name old time/op new time/op delta Hash-8 11.5µs ± 1% 7.8µs ± 1% -32.17% (p=0.000 n=10+10) name old alloc/op new alloc/op delta Hash-8 1.98kB ± 0% 1.67kB ± 0% -15.73% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Hash-8 82.0 ± 0% 53.0 ± 0% -35.37% (p=0.000 n=10+10) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	752f8c0f2f	internal/deepprint: buffer writes ... The sha256 hash writer doesn't implement WriteString. (See https://github.com/golang/go/issues/38776.) As a consequence, we end up converting many strings to []byte. Wrapping a bufio.Writer around the hash writer lets us avoid these conversions by using WriteString. Using a bufio.Writer is, perhaps surprisingly, almost as cheap as using unsafe. The reason is that the sha256 writer does internal buffering, but doesn't do any when handed larger writers. Using a bufio.Writer merely shifts the data copying from one buffer to a different one. Using a concrete type for Print and print cuts 10% off of the execution time. name old time/op new time/op delta Hash-8 15.3µs ± 0% 11.5µs ± 0% -24.84% (p=0.000 n=10+10) name old alloc/op new alloc/op delta Hash-8 2.82kB ± 0% 1.98kB ± 0% -29.57% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Hash-8 140 ± 0% 82 ± 0% -41.43% (p=0.000 n=10+10) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	7891b34266	internal/deepprint: add BenchmarkHash ... deepprint currently accounts for 15% of allocs in tailscaled. This is a useful benchmark to have. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	cb97062bac	go.mod: bump inet.af/netaddr ... For IPPort.MarshalText optimizations. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	773fcfd007	Revert "wgengine/bench: skip flaky test" ... This reverts commit d707e2f7e5. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	68911f6778	wgengine/bench: ignore "engine closing" errors ... On benchmark completion, we shut down the wgengine. If we happen to poll for status during shutdown, we get an "engine closing" error. It doesn't hurt anything; ignore it. Fixes tailscale/corp#1776 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	d707e2f7e5	wgengine/bench: skip flaky test ... Updates tailscale/corp#1776 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	cfde997699	net/dns: don't use interfaces.Tailscale to find the tailscale interface index. ... interfaces.Tailscale only returns an interface if it has at least one Tailscale IP assigned to it. In the resolved DNS manager, when we're called upon to tear down DNS config, the interface no longer has IPs. Instead, look up the interface index on construction and reuse it throughout the daemon lifecycle. Fixes #1892. Signed-off-by: David Anderson <dave@natulte.net>	4 years ago
Brad Fitzpatrick	d82b28ba73	go.mod: bump wireguard-go	4 years ago
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