tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	5db529a655	logpolicy: upload early logpolicy output, log where we decide to write logs Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	6013462e9e	logpolicy: remove inaccurate comment, conditional tryFixLogStateLocation call What I was probably actually hitting was exe caching issues where the binary was updated on a SMB shared drive and I tried to run it with the GUI exe still open, so Windows blends the two pages together and causes all sorts of random corruption. I didn't know about that at the time. Now, just call tryFixLogStateLocation unconditionally. The func itself will bail out early on non-applicable OSes. (And rearrange it to return even a bit earlier.)	4 years ago
David Anderson	9cd4e65191	smallzstd: new package that constructs zstd small encoders/decoders. It's just a config wrapper that passes "use less memory at the expense of compression" parameters by default, so that we don't accidentally construct resource-hungry (de)compressors. Also includes a benchmark that measures the memory cost of the small variants vs. the stock variants. The savings are significant on both compressors (~8x less memory) and decompressors (~1.4x less, not including the savings from the significantly smaller window on the compression side - with those savings included it's more like ~140x smaller). BenchmarkSmallEncoder-8 56174 19354 ns/op 31 B/op 0 allocs/op BenchmarkSmallEncoderWithBuild-8 2900 382940 ns/op 1746547 B/op 36 allocs/op BenchmarkStockEncoder-8 48921 25761 ns/op 286 B/op 0 allocs/op BenchmarkStockEncoderWithBuild-8 426 2630241 ns/op 13843842 B/op 124 allocs/op BenchmarkSmallDecoder-8 123814 9344 ns/op 0 B/op 0 allocs/op BenchmarkSmallDecoderWithBuild-8 41547 27455 ns/op 27694 B/op 31 allocs/op BenchmarkStockDecoder-8 129832 9417 ns/op 1 B/op 0 allocs/op BenchmarkStockDecoderWithBuild-8 25561 51751 ns/op 39607 B/op 92 allocs/op Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	c3f7733f53	logpolicy: don't check version.CmdName on Windows unnecessarily ... it was crashing for some reason, running out of stack while loading a DLL in goversion. I don't understand Windows (or the Go runtime for Windows) enough to know why that'd be problematic in that context. In any case, don't call it, as tryFixLogStateLocation does nothing on Windows anyway. tryFixLogStateLocation should probably just call version.CmdName itself if/when it needs to, after the GOOS check.	4 years ago
David Anderson	d4127db0fe	logpolicy: add a temporary fixup for #247 . Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
David Anderson	0dac03876a	logpolicy: don't put log state in /. Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
Brad Fitzpatrick	24009241bf	net/netns: move SOCKS dialing to netns for now This lets control & logs also use SOCKS dials. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
David Anderson	1617a232e1	logpolicy: remove deprecated DualStack directive. Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
David Anderson	a6bd3a7e53	logpolicy: use netns for dialing log.tailscale.io.	5 years ago
Avery Pennarun	db051fb013	ipnserver and logpolicy: configure zstd with low-memory settings. The compressed blobs we send back and forth are small and infrequent, which doesn't justify the 8MB * GOMAXPROCS memory that was being allocated. This was the overwhelming majority of memory use in tailscaled. On my system it goes from ~100M RSS to ~15M RSS (which is still suspiciously high, but we can worry about that more later). Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	5 years ago
Avery Pennarun	08acb502e5	Add tstest.PanicOnLog(), and fix various problems detected by this. If a test calls log.Printf, 'go test' horrifyingly rearranges the output to no longer be in chronological order, which makes debugging virtually impossible. Let's stop that from happening by making log.Printf panic if called from any module, no matter how deep, during tests. This required us to change the default error handler in at least one http.Server, as well as plumbing a bunch of logf functions around, especially in magicsock and wgengine, but also in logtail and backoff. To add insult to injury, 'go test' also rearranges the output when a parent test has multiple sub-tests (all the sub-test's t.Logf is always printed after all the parent tests t.Logf), so we need to screw around with a special Logf that can point at the "current" t (current_t.Logf) in some places. Probably our entire way of using subtests is wrong, since 'go test' would probably like to run them all in parallel if you called t.Parallel(), but it definitely can't because the're all manipulating the shared state created by the parent test. They should probably all be separate toplevel tests instead, with common setup/teardown logic. But that's a job for another time. Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>	5 years ago
Elias Naur	7b901fdbbc	logpolicy: report the correct error Signed-off-by: Elias Naur <mail@eliasnaur.com>	5 years ago
Brad Fitzpatrick	9497921f52	logpolicy: also set up TLS dialing (for iOS) for log uploads This was the last of the three places that do TLS from clients (logs, control, derp). With this, iOS should be able to use the memory-efficient x509 root CertPool.	5 years ago
Brad Fitzpatrick	fe149979e6	logpolicy: include Go version in version log	5 years ago
Brad Fitzpatrick	3b4b17d239	logpolicy: log on dials, add knob to force HTTP/1 for log uploads Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	7fb8d873ac	logpolicy: don't log timestamp when running under systemd It'll do it anyway. Makes journalctl -fu cleaner. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
David Anderson	15b4d26d92	logpolicy: automatically figure out paths and filenames. The autoselection should pick sensible paths for all of: - Windows (LocalAppData) - Mac (Library/Caches) - Unix user (XDG_CACHE_DIR) - Linux systemd service (CACHE_DIRECTORY) As a last resort, if cache dir lookup fails, plops sufficiently uniquely named files into the current working directory. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
Brad Fitzpatrick	fbfe474492	logpolicy: add some docs Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Earl Lee	a8d8b8719a	Move Linux client & common packages into a public repo.	5 years ago

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69 Commits (4451a7c3643bc7375b26f6f00952131f5fb64446)