63 Commits (4c0494185b65a81b50b543e14292c161bd6ff56f)

Author	SHA1	Message	Date
Brad Fitzpatrick	8a4dffee07	types/logger: fix deadlock RateLimitedFn reentrancy ... Fix regression from 19c3e6cc9e which made the locking coarser. Found while debugging #2245, which ended up looking like a tswin/Windows issue where Crawshaw had blocked cmd.exe's output. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	297b3d6fa4	staticcheck.conf: turn off noisy lint errors ... Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	e66d4e4c81	tailcfg, types/wgkey: add AppendTo methods on some types ... Add MarshalText-like appending variants. Like: https://pkg.go.dev/inet.af/netaddr#IP.AppendTo To be used by @josharian's pending deephash optimizations. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
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	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
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
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
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
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
Avery Pennarun	19c3e6cc9e	types/logger: rate limited: more hysteresis, better messages. ... - Switch to our own simpler token bucket, since x/time/rate is missing necessary stuff (can't provide your own time func; can't check the current bucket contents) and it's overkill anyway. - Add tests that actually include advancing time. - Don't remove the rate limit on a message until there's enough room to print at least two more of them. When we do, we'll also print how many we dropped, as a contextual reminder that some were previously lost. (This is more like how the Linux kernel does it.) - Reformat the [RATE LIMITED] messages to be shorter, and to not corrupt original message. Instead, we print the message, then print its format string. - Use %q instead of \"%s\", for more accurate parsing later, if the format string contained quotes. Fixes #1772 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	4 years ago
Josh Bleecher Snyder	4037fc25c5	types/wgkey: use value receiver with MarshalJSON ... Pointer receivers used with MarshalJSON are code rakes. https://github.com/golang/go/issues/22967 https://github.com/dominikh/go-tools/issues/911 I just stepped on one, and it hurt. Turn it over. While we're here, optimize the code a bit. name old time/op new time/op delta MarshalJSON-8 184ns ± 0% 44ns ± 0% -76.03% (p=0.000 n=20+19) name old alloc/op new alloc/op delta MarshalJSON-8 184B ± 0% 80B ± 0% -56.52% (p=0.000 n=20+20) name old allocs/op new allocs/op delta MarshalJSON-8 4.00 ± 0% 1.00 ± 0% -75.00% (p=0.000 n=20+20) Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	7ee891f5fd	all: delete wgcfg.Key and wgcfg.PrivateKey ... For historical reasons, we ended up with two near-duplicate copies of curve25519 key types, one in the wireguard-go module (wgcfg) and one in the tailscale module (types/wgkey). Then we moved wgcfg to the tailscale module. We can now remove the wgcfg key type in favor of wgkey. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Brad Fitzpatrick	6d64107f26	types/netmap: remove some old TODOs ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	64c80129f1	types/netmap: add some docs/warning to NetworkMap ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2074dfa5e0	types/preftype: don't use iota for consts persisted to disk ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	01b90df2fa	net/packet, wgengine/filter: support SCTP ... Add proto to flowtrack.Tuple. Add types/ipproto leaf package to break a cycle. Server-side ACL work remains. Updates #1516 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c64bd587ae	net/portmapper: add NAT-PMP client, move port mapping service probing ... * move probing out of netcheck into new net/portmapper package * use PCP ANNOUNCE op codes for PCP discovery, rather than causing short-lived (sub-second) side effects with a 1-second-expiring map + delete. * track when we heard things from the router so we can be less wasteful in querying the router's port mapping services in the future * use portmapper from magicsock to map a public port Fixes #1298 Fixes #1080 Fixes #1001 Updates #864 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	1e7a35b225	types/netmap: split controlclient.NetworkMap off into its own leaf package ... Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ddfcc4326c	types/persist: split controlclient.Persist into a small leaf package ... This one alone doesn't modify the global dependency map much (depaware.txt if anything looks slightly worse), but it leave controlclient as only containing NetworkMap: bradfitz@tsdev:~/src/tailscale.com/ipn$ grep -F "controlclient." *.go backend.go: NetMap *controlclient.NetworkMap // new netmap received fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}}) handle.go: netmapCache *controlclient.NetworkMap handle.go:func (h *Handle) NetMap() *controlclient.NetworkMap { Once that goes into a leaf package, then ipn doesn't depend on controlclient at all, and then the client gets smaller. Updates #1278	4 years ago
Brad Fitzpatrick	d76334d2f0	ipn: split LocalBackend off into new ipn/ipnlocal package ... And move a couple other types down into leafier packages. Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc. Fixes #1181 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	1e28207a15	types/logger: fix rateFree interaction with verbosity prefixes ... We log lines like this: c.logf("[v1] magicsock: disco: %v->%v (%v, %v) sent %v", c.discoShort, dstDisco.ShortString(), dstKey.ShortString(), derpStr(dst.String()), disco.MessageSummary(m)) The leading [v1] causes it to get unintentionally rate limited. Until we have a proper fix, work around it. Fixes #1216 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	78338ac029	types/logger: trim spaces from the rate-limited example message. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	2d837f79dc	wgengine/magicsock: close test loggers once we're done with them ... This is a big hammer approach to helping with #1132. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	22507adf54	wgengine/magicsock: stop depending on UpdateDst in legacy codepaths. ... This makes connectivity between ancient and new tailscale nodes slightly worse in some cases, but only in cases where the ancient version would likely have failed to get connectivity anyway. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Smitty	2bf49ddf90	Provide example when format string is rate limited ... Here's an example log line in the new format: [RATE LIMITED] format string "open-conn-track: timeout opening %v; no associated peer node" (example: "open-conn-track: timeout opening ([ip] => [ip]); no associated peer node") This should make debugging logging issues a bit easier, and give more context as to why something was rate limited. This change was proposed in a comment on #1110. Signed-off-by: Smitty <me@smitop.com>	4 years ago
Josh Bleecher Snyder	1e4604f60e	wgengine: quiet some wireguard-go logging ... The log lines that wireguard-go prints as it starts and stops its worker routines are mostly noise. They also happen after other work is completed, which causes failures in some of the log testing packages. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	56a7652dc9	wgkey: new package ... This is a replacement for the key-related parts of the wireguard-go wgcfg package. This is almost a straight copy/paste from the wgcfg package. I have slightly changed some of the exported functions and types to avoid stutter, added and tweaked some comments, and removed some now-unused code. To avoid having wireguard-go depend on this new package, wgcfg will keep its key types. We translate into and out of those types at the last minute. These few remaining uses will be eliminated alongside the rest of the wgcfg package. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Smitty	f0b0a62873	Clarify that raw format strings are intentional ... This caused some confusion in issue #460, since usually raw format strings aren't printed directly. Hopefully by directly logging that they are intended to be raw format strings, this will be more clear. Rate limited format strings now look like: [RATE LIMITED] format string "control: sendStatus: %s: %v" Closes #460. Signed-off-by: Smitty <me@smitop.com>	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
Brad Fitzpatrick	8b904b1493	types/logger: fix LogOnChange to pass through format/args to underlying logger ... So they don't get interpretted as a format pattern or get rate-limited away in the wrong way.	4 years ago
Brad Fitzpatrick	691f1d5c1d	types/flagtype: fix bug showing the default port value (shown in --help)	4 years ago
Brad Fitzpatrick	86c271caba	types/logger: move RusagePrefixLog to logger package, disable by default ... The RusagePrefixLog is rarely useful, hasn't been useful in a long time, is rarely the measurement we need, and is pretty spammy (and syscall-heavy). Disable it by default. We can enable it when we're debugging memory.	4 years ago
Brad Fitzpatrick	8b94a769be	cmd/tailscaled: use the standard flag page instead of getopt ... Per discussion with @crawshaw. The CLI tool already used std flag anyway. If either of them, it would've made more sense for the CLI to use getopt.	4 years ago
Brad Fitzpatrick	309c15dfdd	types/key: restore Curve25519 clamping in NewPrivate ... It was lost during a copy from wgcfg.NewPresharedKey (which doesn't clamp) instead of wgcfg.NewPrivateKey (which does). Fortunately this was only use for discovery messages (not WireGuard) and only for ephemeral process-lifetime keys.	4 years ago
Elias Naur	fa45d606fa	types/logger: fix go test vet error ... Silences types/logger/logger_test.go:63:30: conversion from int to string yields a string of one rune Signed-off-by: Elias Naur <mail@eliasnaur.com>	4 years ago
Brad Fitzpatrick	6c74065053	wgengine/magicsock, tstest/natlab: start hooking up natlab to magicsock ... Also adds ephemeral port support to natlab. Work in progress. Pairing with @danderson.	4 years ago
Brad Fitzpatrick	0ea51872c9	types/logger: add rateFreePrefix rate-limiting-exempt log format prefixes ... Per conversation with @danderson.	4 years ago
Brad Fitzpatrick	0071888a17	types/opt: add Bool.EqualBool method ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	53fb25fc2f	all: generate discovery key, plumb it around ... Not actually used yet. Updates #483	4 years ago
Dmytro Shynkevych	c12d87c54b	Fix concurrency issues in controlclient, ipn, types/logger (#456) ... Signed-Off-By: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	dd6b96ba68	types/logger: add TS_DEBUG_LOG_RATE knob to easily turn off rate limiting	4 years ago
Brad Fitzpatrick	3f4a567032	types/strbuilder: add a variant of strings.Builder that uses sync.Pool ... ... and thus does not need to worry about when it escapes into unprovable fmt interface{} land. Also, add some convenience methods for efficiently writing integers.	5 years ago
Avery Pennarun	af9328c1b7	log rate limiting: reformat limiter messages, and use nonempty burst size. ... - Reformat the warning about a message being rate limited to print the format string, rather than the formatted message. This helps give a clue what "type" of message is being limited. - Change the rate limit warning to be [RATE LIMITED] in all caps. This uses less space on each line, plus is more noticeable. - In tailscaled, change the frequency to be less often (once every 5 seconds per format string) but to allow bursts of up to 5 messages. This greatly reduces the number of messages that are rate limited during startup, but allows us to tighten the limit even further during normal runtime. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	5 years ago
Wendi Yu	bb55694c95	wgengine: log node IDs when peers are added/removed (#381) ... Also stop logging data sent/received from nodes we're not connected to (ie all those `x`s being logged in the `peers: ` line) Signed-off-by: Wendi <wendi.yu@yahoo.ca>	5 years ago
Brad Fitzpatrick	fe97bedf67	types/logger: add ArgWriter	5 years ago
Brad Fitzpatrick	8eda667aa1	types/logger: simplify mutex locking in rate-limited logger ... Updates #365 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
David Anderson	48b1e85e8a	types/logger: fix deadlock in the burst case. ... Fixes #365. Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
Wendi Yu	0c69b4e00d	Implement rate limiting on log messages (#356) ... Implement rate limiting on log messages Addresses issue #317, where logs can get spammed with the same message nonstop. Created a rate limiting closure on logging functions, which limits the number of messages being logged per second based on format string. To keep memory usage as constant as possible, the previous cache purging at periodic time intervals has been replaced by an LRU that discards the oldest string when the capacity of the cache is reached. Signed-off-by: Wendi Yu <wendi.yu@yahoo.ca>	5 years ago