tailscale

Commit Graph

Author	SHA1	Message	Date
Josh Bleecher Snyder	94fb42d4b2	all: use testingutil.MinAllocsPerRun There are a few remaining uses of testing.AllocsPerRun: Two in which we only log the number of allocations, and one in which dynamically calculate the allocations target based on a different AllocsPerRun run. This also allows us to tighten the "no allocs" test in wgengine/filter. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	1df865a580	wgengine/magicsock: allow even fewer allocs per UDP receive We improved things again for Go 1.18. Lock that in. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	c1d377078d	wgengine/magicsock: use testingutil.MinAllocsPerRun This speeds up and deflakes the test. Fixes #2826 (again) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	4bb2c6980d	util/testingutil: new package with MinAllocsPerRun testing.AllocsPerRun measures the total allocations performed by the entire program while repeatedly executing a function f. If some unrelated part of the rest of the program happens to allocate a lot during that period, you end up with a test failure. Ideally, the rest of the program would be silent while testing.AllocsPerRun executes. Realistically, that is often unachievable. AllocsPerRun attempts to mitigate this by setting GOMAXPROCS to 1, but that doesn't prevent other code from running; it only makes it less likely. You can also mitigate this by passing a large iteration count to AllocsPerRun, but that is unreliable and needlessly expensive. Unlike most of package testing, AllocsPerRun doesn't use any toolchain magic, so we can just write a replacement. One wild idea is to change how we count mallocs. Instead of using runtime.MemStats, turn on memory profiling with a memprofilerate of 1. Discard all samples from the profile whose stack does not contain testing.AllocsPerRun. Count the remaining samples to determine the number of mallocs. That's fun, but overkill. Instead, this change adds a simple API that attempts to get f to run at least once with a target number of allocations. This is useful when you know that f should allocate consistently. We can then assume that any iterations with too many allocations are probably due to one-time costs or background noise. This suits most uses of AllocsPerRun. Ratcheting tests tend to be significantly less flaky, because they are biased towards success. They can also be faster, because they can exit early, once success has been reached. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	640de1921f	depaware: update To fix build broken by `c9bf773312`. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	aad46bd9ff	wgengine/router: stop cleaning up old dev rules on Linux Anybody using that one old, unreleased version of Tailscale from over a year ago should've rebooted their machine by now to get various non-Tailscale security updates. :) Change-Id: If9e043cb008b20fcd6ddfd03756b3b23a9d7aeb5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	c9bf773312	wgengine/magicsock: replace use of wgkey with new node key type. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	d36c0d3566	wgengine/router: add debug test to enumerate rules No non-test changes. Updates #391 Change-Id: Ia88610c08e07a119d002e58250463cb4659b9f54 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	6e5175373e	types/netmap: use new node key type. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	96ad68c5d6	ipn: remove mention of wgkey in comment. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	bab2d92c42	tailcfg: remove use of wgkey. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	3164c7410e	wgengine/wgcfg: remove unused helper function. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	0c546a28ba	types/persist: use new node key type. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Denton Gentry	5302e4be96	net/portmapper: only print PCP/PMP if VerboseLogs Make UPnP, NAT-PMP, and PCP packet reception logs be [v1] so they will never appear on stdout and instead only go to logtail. ``` $ tailscale netcheck 2021/10/15 22:50:31 portmap: Got PMP response; IP: w.x.y.z, epoch: 1012707 2021/10/15 22:50:31 portmap: Got PCP response: epoch: 1012707 Report: * UDP: true * IPv4: yes, w.x.y.z:1511 * IPv6: no * MappingVariesByDestIP: true * HairPinning: false * PortMapping: NAT-PMP, PCP * Nearest DERP: San Francisco * DERP latency: - sfo: 5.9ms (San Francisco) - sea: 24ms (Seattle) - dfw: 45ms (Dallas) - ord: 53.7ms (Chicago) - nyc: 74.1ms (New York City) - tok: 111.1ms (Tokyo) - lhr: 139.4ms (London) - syd: 152.7ms (Sydney) - fra: 153.1ms (Frankfurt) - sin: 182.1ms (Singapore) - sao: 190.1ms (S_o Paulo) - blr: 218.6ms (Bangalore) ``` Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	dc2fbf5877	wgengine/router: start using netlink instead of 'ip' on Linux Converts up, down, add/del addresses, add/del routes. Not yet done: rules. Updates #391 Change-Id: I02554ca07046d18f838e04a626ba99bbd35266fb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7b87c04861	tailcfg: add RegisterRequest.Ephemeral to request new ephemeral node So js/wasm clients can log in for a bit using regular Gmail/GitHub auth without using an ephemeral key but still have their node cleaned up when they're done. Updates #3157 Change-Id: I49e3d14e9d355a9b8bff0ea810b0016bfe8d47f2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Michael Stapelberg	3ad11f6b8c	Dockerfile: build/run instructions need a /, not : The image is pulled using tailscale/tailscale:latest, and can be run using tailscale/tailscale Signed-off-by: Michael Stapelberg <michael@stapelberg.de>	3 years ago
Brad Fitzpatrick	31e4f60047	version: embed VERSION.txt in unstamped version Temporary measure until we switch to Go 1.18. $ go run ./cmd/tailscale version 1.17.0-date.20211022 go version: go1.17 Updates #81 Change-Id: Ic82ebffa5f46789089e5fb9810b3f29e36a47f1a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	a9c78910bd	wgengine/wgcfg: convert to use new node key type. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	a47158e14d	cmd/derper: use new node key type. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	bc89a796ec	types/key: add a dedicated type for node keys. Complete with converters to all the other types that represent a node key today, so the new type can gradually subsume old ones. Updates #3206 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	22dbaa0894	ipn/ipnserver: add New, Server.Server Change-Id: I1dc85a5131b9a628d7fc780fde7103492cd3f1f8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	d381bc2b6c	ipn/ipnserver: move the unserved connection logic to a Listener So future refactors can only deal with a net.Listener and be unconcerned with their caller's (Windows-specific) struggles. Change-Id: I0af588b9a769ab65c59b0bd21f8a0c99abfa1784 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c23a378f63	ipn/ipnserver: start refactoring ipnserver.Run into smaller pieces I'll keep ipnserver.Run for compatibility, but it'll be a wrapper around several smaller pieces. (more testable too) For now, start untangling some things in preparation. Plan is to have to have a constructor for the just-exported ipnserver.Server type that takes a LocalBackend and can accept (in a new method) on a provided listener. Change-Id: Ide73aadaac1a82605c97a2af1321d0d8f60b2a8c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	e4d2ef2b67	go.sum: tidy Change-Id: I198755a3a94d89d838ff817573fbdd198412b2f3	3 years ago
Josh Bleecher Snyder	cf8fcc1254	syncs: mark as safe for Go 1.18 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	869999955d	ipn/ipnserver: export server type as Server It's all opaque, there's no constructor, and no exported methods, so it's useless at this point, but this is one small refactoring step. Change-Id: Id961e8880cf0c84f1a0a989eefff48ecb3735add Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	f27950e97f	go.mod: upgrade netaddr, netstack For Go 1.18 support. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
David Anderson	060ba86baa	net/portmapper: ignore IGD SSDP responses from !defaultgw Now that we multicast the SSDP query, we can get IGD offers from devices other than the current device's default gateway. We don't want to accidentally bind ourselves to those. Updates #3197 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	675f9cd199	cmd/tailscale/cli: add, use log.Fatalf indirection for js/wasm Updates #3157 Change-Id: I97a4962a44bd36313ff68388e3de0d852a8fa869 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	4a65b07e34	net/portmapper: also send UPnP SSDP query to the SSDP multicast address. Fixes #3197 Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	5df7ac70d6	cmd/tailscale/cli: add Stdout, Stderr and output through them So js/wasm can override where those go, without implementing an *os.File pipe pair, etc. Updates #3157 Change-Id: I14ba954d9f2349ff15b58796d95ecb1367e8ba3a Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	2ce5fc7b0a	safesocket: fail early on js/wasm Updates #3157 Change-Id: Ib78efb3b1ba34ca4fb34296033b95327188774a7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3b5ada1fd8	cmd/tailscale/cli: use errors.Is to check ff's wrapped flag errors And also check from its Parse method. Change-Id: I18754920575254cb6858a16b7954e74aa16483a1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	75de4e9cc2	cmd/tailscale/cli: don't ExitOnError on js/wasm An os.Exit brings down the whole wasm module. Updates #3157 Change-Id: I3daa97fd854715b901f3dbb04b57d841576b60b1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	b0b0a80318	net/netcheck: implement netcheck for js/wasm clients And the derper change to add a CORS endpoint for latency measurement. And a little magicsock change to cut down some log spam on js/wasm. Updates #3157 Change-Id: I5fd9e6f5098c815116ddc8ac90cbcd0602098a48 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	eebe7afad7	derp/derphttp: only log about a weird upgrade if any was specified Otherwise random browser requests to /derp cause log spam. Change-Id: I7bdf991d2106f0323868e651156c788a877a90d5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Maisem Ali	81cabf48ec	control/controlclient,tailcfg: propagate registration errors to the frontend Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Denton Gentry	139a6c4c9c	net/dns: detect when resolvconf points to systemd-resolved. There are /etc/resolv.conf files out there where resolvconf wrote the file but pointed to systemd-resolved as the nameserver. We're better off handling those as systemd-resolved. > # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) > # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN > # 127.0.0.53 is the systemd-resolved stub resolver. > # run "systemd-resolve --status" to see details about the actual nameservers. Fixes https://github.com/tailscale/tailscale/issues/3026 Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
David Anderson	a320d70614	net/dns: fall back to copy+delete/truncate if moving to/from /etc/resolv.conf fails. In some containers, /etc/resolv.conf is a bind-mount from outside the container. This prevents renaming to or from /etc/resolv.conf, because it's on a different filesystem from linux's perspective. It also prevents removing /etc/resolv.conf, because doing so would break the bind-mount. If we find ourselves within this environment, fall back to using copy+delete when renaming to /etc/resolv.conf, and copy+truncate when renaming from /etc/resolv.conf. Fixes #3000 Co-authored-by: Denton Gentry <dgentry@tailscale.com> Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	04d24d3a38	net/dns: move directManager function below directManager's definition. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	422ea4980f	net/dns: remove a tiny wrapper function that isn't contributing anything. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Maisem Ali	10745c099a	tailcfg: add Node.Tags Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Maisem Ali	85fa1b0d61	wgengine: fail NewUserspaceEngine if wireguard device doesn't come up Just something I ran across while debugging an unrelated failure. This is not in response to any bug/issue. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Maya Kaczorowski	59a906df47	Merge pull request #3179 from tailscale/bugreport .github: Add Synology as an OS	3 years ago
Denton Gentry	c1293b3858	.github: Add Synology as an OS Sufficiently different from Linux to split it out separately. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	505f844a43	cmd/derper, derp/derphttp: add websocket support Updates #3157 Change-Id: I337a919a3b350bc7bd9af567b49c4d5d6616abdd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	0b62f26349	magicsock: remove test data race Speculative, I haven't been able to replicate it locally. Fixes #3156 Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	09e692e318	health: don't look for UDP goroutines in js/wasm health check Updates #3157 Change-Id: I43d97e6876eeb2d1936fc567835134568bb8615c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	ed3fb197ad	wgengine/magicsock: fix/disable a few misc things to get js/wasm working Updates #3157 Change-Id: Ie9e3a772bb9878584080bb257b32150492e26eaf Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago

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