Commit Graph

186 Commits (8b9ee7a5583b4e2bd13bfcba898ab4541c96b507)

Author SHA1 Message Date
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>
5 years ago
Brad Fitzpatrick dd6b96ba68 types/logger: add TS_DEBUG_LOG_RATE knob to easily turn off rate limiting 5 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
Brad Fitzpatrick fefd7e10dc types/structs: add structs.Incomparable annotation, use it where applicable
Shotizam before and output queries:

sqlite> select sum(size) from bin where func like 'type..%';
129067
=>
120216
5 years ago
Brad Fitzpatrick 45f2b53aca all: remove unnecessary trailing newlines in format patterns for consistency
And document on logger.Logf that it's unnecessary.
5 years ago
Brad Fitzpatrick 922d9546bf wgengine: don't allocate so much in userspaceEngine.getStatus
It was one of the top garbage producers on my phone.

It's slated to be deleted and replaced anyway, but this helps in the
meantime.

The go.sum changes look scary, but the new dep only adds 240 bytes to
the binary. The go.sum noise is just cmd/go being aggressive in
including a lot of stuff (which is being fixed in Go 1.15, for what I
understand). And I ran a go mod tidy, which added some too. (I had to
write a custom wrapper around go mod tidy because this mod tidy
normally breaks on tailscale.io/control being missing but referenced
in tests)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Anderson 96b2f20c5b types/logger: add Discard helper. 5 years ago
Brad Fitzpatrick 810c1e9704 types/key: make Public implement TextMarshaler, TextUnmarshaler
So it can be a map key with encoding/json
5 years ago
Brad Fitzpatrick 322499473e cmd/tailscaled, wgengine, ipn: add /debug/ipn handler with world state
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 946df89fa6 types/logger: add adapters for Logf to std Logger/Writer 5 years ago
Brad Fitzpatrick a6c695ba6b types/key: add IsZero methods
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick a07af762e4 types/opt: add opt package for a new opt.Bool JSON type
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 3988ddc85d types/logger: add WithPrefix, use it in two places
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 769e25e37b derp: use new types/key package
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 2896be60db Move "logger" package to under types, now that we have it.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 747c7d7ce2 types/empty: add Message, stop using mysterious *struct{}
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago