tailscale

Commit Graph

Author	SHA1	Message	Date
Brad Fitzpatrick	6d2b8df06d	wgengine/magicsock: add disabled failing (deadlocking) test for #1282 The fix can make this test run unconditionally. This moves code from `5c619882bc` for testability but doesn't fix it yet. The #1282 problem remains (when I wrote its wake-up mechanism, I forgot there were N DERP readers funneling into 1 UDP reader, and the code just isn't correct at all for that case). Also factor out some test helper code from BenchmarkReceiveFrom. The refactoring in magicsock.go for testability should have no behavior change.	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	6064b6ff47	wgengine/wgcfg/nmcfg: split control/controlclient/netmap.go into own package It couldn't move to ipnlocal due to test dependency cycles. Updates #1278 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	ace57d7627	wgengine/magicsock: set a dummy private key in benchmark. Magicsock started dropping all traffic internally when Tailscale is shut down, to avoid spurious wireguard logspam. This made the benchmark not receive anything. Setting a dummy private key is sufficient to get magicsock to pass traffic for benchmarking purposes. Fixes #1270. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	e8cd7bb66f	tstest: simplify goroutine leak tests Use tb.Cleanup to simplify both the API and the implementation. One behavior change: When the number of goroutines shrinks, don't log. I've never found these logs to be useful, and they frequently add noise. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	fe7c3e9c17	all: move wgcfg from wireguard-go This is mostly code movement from the wireguard-go repo. Most of the new wgcfg package corresponds to the wireguard-go wgcfg package. wgengine/wgcfg/device{_test}.go was device/config{_test}.go. There were substantive but simple changes to device_test.go to remove internal package device references. The API of device.Config (now wgcfg.DeviceConfig) grew an error return; we previously logged the error and threw it away. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	d5baeeed5c	wgengine: use Tailscale-style peer identifiers in logs Rewrite log lines on the fly, based on the set of known peers. This enables us to use upstream wireguard-go logging, but maintain the Tailscale-style peer public key identifiers that the rest of our systems (and people) expect. Fixes #1183 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	e4c075cd95	wgengine/magicsock: prevent log-after-test in TestTwoDevicePing	4 years ago
Brad Fitzpatrick	5c619882bc	wgengine/magicsock: simplify ReceiveIPv4+DERP path name old time/op new time/op delta ReceiveFrom-4 35.8µs ± 3% 21.9µs ± 5% -38.92% (p=0.008 n=5+5) Fixes #1145 Updates #414 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	ed2169ae99	wgengine/magicsock: prevent logging after TestActiveDiscovery completes	4 years ago
Josh Bleecher Snyder	63af950d8c	wgengine/magicsock: adapt to wireguard-go without UpdateDst `22507adf54` stopped relying on our fork of wireguard-go's UpdateDst callback. As a result, we can unwind that code, and the extra return value of ReceiveIPv{4,6}. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Denton Gentry	23c2dc2165	magicksock: remove TestConnClosing. (#1140 ) Test is flakey, remove it and figure out what to do differently later. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
David Anderson	e23b4191c4	wgengine/magicsock: disable legacy networking everywhere except TwoDevicePing. TwoDevicePing is explicitly testing the behavior of the legacy codepath, everything else is happy to assume that code no longer exists. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	0733c5d2e0	wgengine/magicsock: disable legacy behavior in a few more tests. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	a2463e8948	wgengine/magicsock: add an option to disable legacy peer handling. Used in tests to ensure we're not relying on behavior we're going to remove eventually. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	d456bfdc6d	wgengine/magicsock: fix BenchmarkReceiveFrom. Previously, this benchmark relied on behavior of the legacy receive codepath, which I changed in `22507adf`. With this change, the benchmark instead relies on the new active discovery path. 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
Josh Bleecher Snyder	d2529affa2	wgengine/magicsock: quiet wireguard-go logging in tests We already do this in newUserspaceEngineAdvanced. Apply it to newMagicStack as well. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	654b5f1570	all: convert from []wgcfg.Endpoint to string This eliminates a dependency on wgcfg.Endpoint, as part of the effort to eliminate our wireguard-go fork. 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
Denton Gentry	8349e10907	magicsock: add description of testClosingContext Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	2e9728023b	magicsock: test error case in sendDiscoMessage In sendDiscoMessage there is a check of whether the connection is closed, which is not being reliably exercised by other tests. This shows up in code coverage reports, the lines of code in sendDiscoMessage are alternately added and subtracted from code coverage. Add a test to specifically exercise and verify this code path. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
Denton Gentry	0aa55bffce	magicsock: test error case in derpWriteChanOfAddr In derpWriteChanOfAddr when we call derphttp.NewRegionClient(), there is a check of whether the connection is already errored and if so it returns before grabbing the lock. The lock might already be held and would be a deadlock. This corner case is not being reliably exercised by other tests. This shows up in code coverage reports, the lines of code in derpWriteChanOfAddr are alternately added and subtracted from code coverage. Add a test to specifically exercise this code path, and verify that it doesn't deadlock. This is the best tradeoff I could come up with: + the moment code calls Err() to check if there is an error, we grab the lock to make sure it would deadlock if it tries to grab the lock itself. + if a new call to Err() is added in this code path, only the first one will be covered and the rest will not be tested. + this test doesn't verify whether code is checking for Err() in the right place, which ideally I guess it would. Signed-off-by: Denton Gentry <dgentry@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
Josh Bleecher Snyder	2fe770ed72	all: replace wgcfg.IP and wgcfg.CIDR with netaddr types Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	65ae66260f	wgengine/magicsock: unexport AddrSet. Signed-off-by: David Anderson <danderson@tailscale.com>	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
David Anderson	7a54910990	wgengine/filter: remove helper vars, mark NewAllowAll test-only. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	b3634f020d	wgengine/filter: use netaddr types in public API. We still use the packet.* alloc-free types in the data path, but the compilation from netaddr to packet happens within the filter package. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	fd2a30cd32	wgengine/magicsock: make test pass on Windows and without firewall dialog box Updates #50	4 years ago
Brad Fitzpatrick	c86761cfd1	Remove tuntap references. We only use TUN.	4 years ago
Josh Bleecher Snyder	a5d701095b	wgengine/magicsock: increase test timeout to reduce flakiness Updates #654. See that issue for a discussion of why this timeout reduces flakiness, and what next steps are. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	6e38d29485	wgengine/magicsock: improve test logging output This fixes line numbers and reduces timestamp precision to overwhelming the output. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	9a346fd8b4	wgengine,magicsock: fix two lazy wireguard config issues 1) we weren't waking up a discoEndpoint that once existed and went idle for 5 minutes and then got a disco message again. 2) userspaceEngine.noteReceiveActivity had a buggy check; fixed and added a test	4 years ago
Brad Fitzpatrick	41c4560592	control/controlclient: remove unused NetworkMap.UAPI method And remove last remaining use of wgcfg.ToUAPI in a test's debug output; replace it with JSON.	4 years ago
Brad Fitzpatrick	bfcb0aa0be	wgengine/magicsock: deflake tests, Close deadlock again Better fix than `37903a9056` Fixes tailscale/corp#533	4 years ago
Dmytro Shynkevych	28e52a0492	all: dns refactor, add Proxied and PerDomain flags from control (#615 ) Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>	4 years ago
Brad Fitzpatrick	915f65ddae	wgengine/magicsock: stop disco activity on IPN stop Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	f8e4c75f6b	wgengine/magicsock: check slightly less aggressively for connectivity. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	41d0c81859	wgengine/magicsock: make disco subtest name more precise. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	9beea8b314	wgengine/magicsock: remove unnecessary use of context. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	b62341d308	wgengine/magicsock: add docstring. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	9265296b33	wgengine/magicsock: don't deadlock on shutdown if sending blocks. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	0249236cc0	ipn/ipnstate: record assigned Tailscale IPs. wgengine/magicsock: use ipnstate to find assigned Tailscale IPs. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	c3958898f1	tstest/natlab: be a bit more lenient during test shutdown. There is a race in natlab where we might start shutdown while natlab is still running a goroutine or two to deliver packets. This adds a small grace period to try and receive it before continuing shutdown. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	7578c815be	wgengine/magicsock: give pinger a more generous packet timeout. The first packet to transit may take several seconds to do so, because setup rates in wgengine may result in the initial WireGuard handshake init to get dropped. So, we have to wait at least long enough for a retransmit to correct the fault. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	c3994fd77c	derp: remove OnlyDisco option. Active discovery lets us introspect the state of the network stack precisely enough that it's unnecessary, and dropping the initial DERP packets greatly slows down tests. Additionally, it's unrealistic since our production network will never deliver _only_ discovery packets, it'll be all or nothing. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	5455c64f1d	wgengine/magicsock: add a test for two facing endpoint-independent NATs. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	f794493b4f	wgengine/magicsock: explicitly check path discovery, add a firewall test. The test proves that active discovery can traverse two facing firewalls. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	f582eeabd1	wgengine/magicsock: add a test for active path discovery. Uses natlab only, because the point of this active discovery test is going to be that it should get through a lot of obstacles. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago

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110 Commits (6d2b8df06df1d20d4ae92793a066340bb26b6e25)