tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	05e5233e07	net/netcheck: don't send flood of PCP unmap requests to router Updates #810	4 years ago
Brad Fitzpatrick	9503be083d	tailcfg: update comments a bit	4 years ago
Brad Fitzpatrick	88179121e3	version: bump date	4 years ago
Brad Fitzpatrick	7b92f8e718	wgengine/magicsock: add start of magicsock benchmarks (Conn.ReceiveIPv4 for now) And only single-threaded for now. Will get fancier later. Updates #414	4 years ago
Brad Fitzpatrick	713cbe84c1	wgengine/magicsock: use net.JoinHostPort when host might have colons (udp6) Only affected tests. (where it just generated log spam)	4 years ago
David Anderson	be6fe393c5	wgengine: don't try pinging IPv6 addresses in legacy pinger. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	dfbde3d3aa	ipn: pass through the prefix length from control. Control sets this to /32 for IPv4 and /128 for IPv6. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	4c8ccd6dd6	tailcfg: document new debug flag.	4 years ago
Brad Fitzpatrick	c0af7deb86	tailcfg, cmd/tailscale: add Hostinfo.ShareeNode, hide in "tailscale status"	4 years ago
Brad Fitzpatrick	ab482118ad	tailcfg: add some missing json omitempty Noticed these in MapResponses to clients. MachineAuthorized was set true, but once we fix the coordination server to zero out that field, then it can be omittted.	4 years ago
Dmytro Tananayskiy	c431382720	Fix receiver in order to be consistent: syncs.WaitGroupChan Signed-off-by: Dmytro Tananayskiy <dmitriyminer@gmail.com>	4 years ago
Josh Bleecher Snyder	3a7402aa2d	logtail: help the server be more efficient Add content length hints to headers. The server can use these hints to more efficiently select buffers. Stop attempting to compress tiny requests. The bandwidth savings are negligible (and sometimes negative!), and it makes extra work for the server. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	cd6099113f	ipn: add a comment about skipping files with null bytes Updates #954	4 years ago
Alex Brainman	72e082aaf5	ipn: make LoadPrefs return os.ErrNotExist when reading corrupted files It appears some users have corrupted pref.conf files. Have LoadPrefs treat these files as non-existent. This way tailscale will make user login, and not crash. Fixes #954 Signed-off-by: Alex Brainman <alex.brainman@gmail.com>	4 years ago
David Crawshaw	2c48b4ee14	tailcfg: remove outdated comments about Clone methods The cloner tool adds static checks that the Clone methods are up to date, so failing to update Clone causes a compiler error. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
Sonia Appasamy	0710fca0cd	tailcfg: include ShieldsUp in HostInfo	4 years ago
Josh Bleecher Snyder	aa9d7f4665	tstime: add Parse3339B, for byte slices Use go4.org/mem for memory safety. A slight performance hit, but a huge performance win for clients who start with a []byte. The perf hit is due largely to the MapHash call, which adds ~25ns. That is necessary to keep the fast path allocation-free. name old time/op new time/op delta GoParse3339/Z-8 281ns ± 1% 283ns ± 2% ~ (p=0.366 n=9+9) GoParse3339/TZ-8 509ns ± 0% 510ns ± 1% ~ (p=0.059 n=9+9) GoParse3339InLocation-8 330ns ± 1% 330ns ± 0% ~ (p=0.802 n=10+6) Parse3339/Z-8 69.3ns ± 1% 74.4ns ± 1% +7.45% (p=0.000 n=9+10) Parse3339/TZ-8 110ns ± 1% 140ns ± 3% +27.42% (p=0.000 n=9+10) ParseInt-8 8.20ns ± 1% 8.17ns ± 1% ~ (p=0.452 n=9+9) name old alloc/op new alloc/op delta GoParse3339/Z-8 0.00B 0.00B ~ (all equal) GoParse3339/TZ-8 160B ± 0% 160B ± 0% ~ (all equal) GoParse3339InLocation-8 0.00B 0.00B ~ (all equal) Parse3339/Z-8 0.00B 0.00B ~ (all equal) Parse3339/TZ-8 0.00B 0.00B ~ (all equal) name old allocs/op new allocs/op delta GoParse3339/Z-8 0.00 0.00 ~ (all equal) GoParse3339/TZ-8 3.00 ± 0% 3.00 ± 0% ~ (all equal) GoParse3339InLocation-8 0.00 0.00 ~ (all equal) Parse3339/Z-8 0.00 0.00 ~ (all equal) Parse3339/TZ-8 0.00 0.00 ~ (all equal) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	a5dd0bcb09	util/jsonutil: new package The cornerstone API is a more memory-efficient Unmarshal. The savings come from re-using a json.Decoder. BenchmarkUnmarshal-8 4016418 288 ns/op 8 B/op 1 allocs/op BenchmarkStdUnmarshal-8 4189261 283 ns/op 184 B/op 2 allocs/op It also includes a Bytes type to reduce allocations when unmarshalling a non-hex-encoded JSON string into a []byte. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	b65eee0745	util/lineread: add docs to Reader In particular, point out how to stop reading and detect it on the other side. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	1ebbaaaebb	net/interfaces: make syscall and netstat agree when multiple gateways are present likelyHomeRouterIPDarwinSyscall iterates through the list of routes, looking for a private gateway, returning the first one it finds. likelyHomeRouterIPDarwinExec does the same thing, except that it returns the last one it finds. As a result, when there are multiple gateways, TestLikelyHomeRouterIPSyscallExec fails. (At least, I think that that is what is happening; I am going inferring from observed behavior.) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	eccc167733	wgengine/monitor: fix memory corruption in Windows implementation I used the Windows APIs wrong previously, but it had worked just enough. Updates #921 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	8f76548fd9	tempfork/osexec: remove old fork of os/exec This package was a temporary fork of os/exec to fix an EINTR loop bug that was fixed upstream for Go 1.15 in `8c1db77a92` (https://go-review.googlesource.com/c/go/+/232862), in src/os/exec_unix.go: `8c1db77a92 (diff-72072cbd53a7240debad8aa506ff7ec795f9cfac7322e779f9bac29a4d0d0bd4)`	4 years ago
Brad Fitzpatrick	5b338bf011	tempfork/registry: delete It's unused.	4 years ago
Brad Fitzpatrick	acade77c86	ipn/ipnserver: add knob to disable babysitter	4 years ago
Brad Fitzpatrick	5d96ecd5e6	net/netstat: remove a bit more unsafe Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c8939ab7c7	util/endian: add Native variable to get the platform's native binary.ByteOrder Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	883a11f2a8	logtail: fix typo in comment Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	d9e2edb5ae	wgengine: reconfigure wireguard peer in two steps when its disco key changes First remove the device (to clear its wireguard session key), and then add it back. Fixes #929 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	3c508a58cc	wgengine/filter: don't filter GCP DNS. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	51c8fd1dfc	logpolicy: add -race suffix to Go version when race detector in use	4 years ago
Brad Fitzpatrick	ff50ddf1ee	util/racebuild: add package to export a race-is-enabled const	4 years ago
Brad Fitzpatrick	fc8bc76e58	wgengine/router: lock goroutine to OS thread before using OLE [windows] See https://github.com/tailscale/tailscale/issues/921#issuecomment-727526807 Not yet sure whether this is our problem, but it can't hurt at least, and seems like what we're supposed to do. Updates #921	4 years ago
Brad Fitzpatrick	7a01cd27ca	net/netstat: remove some unsafe Just removing any unnecessary unsafe while auditing unsafe usage for #921.	4 years ago
Brad Fitzpatrick	45d96788b5	net/netns: remove use of unsafe on Windows Found while auditing unsafe for #921 via the list at: https://github.com/tailscale/tailscale/issues/921#issuecomment-727365383 No need for unsafe here, so remove it.	4 years ago
Brad Fitzpatrick	000347d4cf	util/endian: add package with const for whether platform is big endian	4 years ago
Josh Bleecher Snyder	b0526e8284	net/packet: remove unnecessary mark There's no need to mask out the bottom four bits of b[0] if we are about to shift them away.	4 years ago
Josh Bleecher Snyder	efad55cf86	net/packet: speed up packet decoding The compiler is failing to draw the connection between slice cap and slice len, so is missing some obvious BCE opportunities. Give it a hint by making the cap equal to the length. The generated code is smaller and cleaner, and a bit faster. name old time/op new time/op delta Decode/tcp4-8 12.2ns ± 1% 11.6ns ± 3% -5.31% (p=0.000 n=28+29) Decode/tcp6-8 12.5ns ± 2% 11.9ns ± 2% -4.84% (p=0.000 n=30+30) Decode/udp4-8 11.5ns ± 1% 11.1ns ± 1% -3.11% (p=0.000 n=25+24) Decode/udp6-8 11.8ns ± 3% 11.4ns ± 1% -3.08% (p=0.000 n=30+26) Decode/icmp4-8 11.0ns ± 3% 10.6ns ± 1% -3.38% (p=0.000 n=25+30) Decode/icmp6-8 11.4ns ± 1% 11.1ns ± 2% -2.29% (p=0.000 n=27+30) Decode/igmp-8 10.3ns ± 0% 10.0ns ± 1% -3.26% (p=0.000 n=19+23) Decode/unknown-8 8.68ns ± 1% 8.38ns ± 1% -3.55% (p=0.000 n=28+29)	4 years ago
Brad Fitzpatrick	cccdd81441	go.mod: update some deps to get past a wireguard-windows checkptr fix	4 years ago
David Anderson	2eb474dd8d	wgengine/filter: add test cases for len(dsts) > 1. While the code was correct, I broke it during a refactoring and tests didn't detect it. This fixes that glitch. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	ce45f4f3ff	wgengine/filter: inline ip6InList into match. matchIPsOnly gets 5% slower when inlining, despite significantly reduced memory ops and slightly tighter code. Part of #19. Filter/tcp6_syn_in-8 45.5ns ± 1% 42.4ns ± 2% -6.86% (p=0.000 n=10+10) Filter/udp6_in-8 107ns ± 2% 94ns ± 2% -11.50% (p=0.000 n=9+10) Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	3fdae12f0c	wgengine/filter: eliminate unnecessary memory loads. Doesn't materially affect benchmarks, but shrinks match6 by 30 instructions and halves memory loads. Part of #19. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	47380ebcfb	wgengine/filter: twiddle bits to optimize Part of #19. name old time/op new time/op delta Filter/icmp4-8 32.2ns ± 3% 32.5ns ± 2% ~ (p=0.524 n=10+8) Filter/icmp6-8 49.7ns ± 6% 43.1ns ± 4% -13.12% (p=0.000 n=9+10) Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	5062131aad	wgengine/filter: treat * as both a v4 and v6 wildcard. Part of #19. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	2d604b3791	net/packet: represent IP6 as two uint64s. For the operations we perform on these types (mostly net6.Contains), this encoding is much faster. Part of #19. name old time/op new time/op delta Filter/icmp4-8 27.5ns ± 1% 28.0ns ± 2% +1.89% (p=0.016 n=5+5) Filter/tcp4_syn_in-8 38.8ns ± 2% 38.3ns ± 1% -1.24% (p=0.024 n=5+5) Filter/tcp4_syn_out-8 27.6ns ±12% 24.6ns ± 1% ~ (p=0.063 n=5+5) Filter/udp4_in-8 71.5ns ± 5% 65.9ns ± 1% -7.94% (p=0.008 n=5+5) Filter/udp4_out-8 132ns ±13% 119ns ± 1% -10.29% (p=0.008 n=5+5) Filter/icmp6-8 169ns ±10% 54ns ± 1% -68.35% (p=0.008 n=5+5) Filter/tcp6_syn_in-8 149ns ± 6% 43ns ± 1% -71.11% (p=0.008 n=5+5) Filter/tcp6_syn_out-8 37.7ns ± 4% 24.3ns ± 3% -35.51% (p=0.008 n=5+5) Filter/udp6_in-8 179ns ± 5% 103ns ± 1% -42.75% (p=0.008 n=5+5) Filter/udp6_out-8 156ns ± 3% 191ns ± 1% +22.54% (p=0.008 n=5+5) Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	04ff3c91ee	wgengine/filter: add full IPv6 support. Part of #19. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	fac2b30eff	control/controlclient: diagnose zero bytes from control Updates #921 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	a664aac877	wgengine/router: disable IPv6 if v6 policy routing is unavailable. Fixes #895. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	a2d78b4d3e	net/dnscache, control/controlclient: use DNS cache when dialing control Cache DNS results of earlier login.tailscale.com control dials, and use them for future dials if DNS is slow or broken. Fixes various issues with trickier setups with the domain's DNS server behind a subnet router. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	97e82c6cc0	net/netcheck: remove unused DNSCache from netcheck It's easy to add back later if/when the TODO is implemented.	4 years ago
Brad Fitzpatrick	19b0cfe89e	all: prepare for GOOS=ios in Go 1.16 Work with either way for now on iOS (darwin/arm64 vs ios/arm64). In February when Go 1.16 comes out we'll have a universal binary for darwin/arm64 (macOS) and will drop support for Go 1.15 and its darwin/amd64 meaning iOS. (it'll mean macOS). Context: * https://tip.golang.org/doc/go1.16#darwin * https://github.com/golang/go/issues/38485 * https://github.com/golang/go/issues/42100	4 years ago

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