tailscale

Commit Graph

Author	SHA1	Message	Date
Josh Bleecher Snyder	c7e5ab8094	wgengine/magicsock: retry and re-send packets in TestTwoDevicePing When a handshake race occurs, a queued data packet can get lost. TestTwoDevicePing expected that the very first data packet would arrive. This caused occasional flakes. Change TestTwoDevicePing to repeatedly re-send packets and succeed when one of them makes it through. This is acceptable (vs making WireGuard not drop the packets) because this only affects communication with extremely old clients. And those extremely old clients will eventually connect, because the kernel will retry sends on timeout. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	ca51529b81	derp/derphttp: return nicer errors from Recv on Close	3 years ago
Brad Fitzpatrick	741d654aa3	derp/derphttp: add a context and infoLogger option to RunWatchConnectionLoop	3 years ago
Josh Bleecher Snyder	1632f9fd6b	wgengine/magicsock: reduce log spam during tests Only do the type assertion to *net.UDPAddr when addr is non-nil. This prevents a bunch of log spam during tests.	3 years ago
Josh Bleecher Snyder	88586ec4a4	wgengine/magicsock: remove an alloc from ReceiveIPvN We modified the standard net package to not allocate a net.UDPAddr during a call to (net.UDPConn).ReadFromUDP if the caller's use of the net.UDPAddr does not cause it to escape. That is https://golang.org/cl/291390. This is the companion change to magicsock. There are two changes required. First, call ReadFromUDP instead of ReadFrom, if possible. ReadFrom returns a net.Addr, which is an interface, which always allocates. Second, reduce the lifetime of the returned net.UDPAddr. We do this by immediately converting it into a netaddr.IPPort. We left the existing RebindingUDPConn.ReadFrom method in place, as it is required to satisfy the net.PacketConn interface. With the upstream change and both of these fixes in place, we have removed one large allocation per packet received. name old time/op new time/op delta ReceiveFrom-8 16.7µs ± 5% 16.4µs ± 8% ~ (p=0.310 n=5+5) name old alloc/op new alloc/op delta ReceiveFrom-8 112B ± 0% 64B ± 0% -42.86% (p=0.008 n=5+5) name old allocs/op new allocs/op delta ReceiveFrom-8 3.00 ± 0% 2.00 ± 0% -33.33% (p=0.008 n=5+5) Co-authored-by: Sonia Appasamy <sonia@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	0c673c1344	wgengine/magicsock: unify on netaddr types in addrSet addrSet maintained duplicate lists of netaddr.IPPorts and net.UDPAddrs. Unify to use the netaddr type only. This makes (*Conn).ReceiveIPvN a bit uglier, but that'll be cleaned up in a subsequent commit. This is preparatory work to remove an allocation from ReceiveIPv4. Co-authored-by: Sonia Appasamy <sonia@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	4cd9218351	wgengine/magicsock: prevent logging while running benchmarks Co-authored-by: Sonia Appasamy <sonia@tailscale.com> Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	be906dabd4	version: bump date	3 years ago
Brad Fitzpatrick	6680976b50	cmd/tailscaled: pick automatic tun device name on darwin	3 years ago
Brad Fitzpatrick	88ab0173a7	wgengine/router: fix BSD router to support multiple local addrs, IPv6 Fixes #1201	3 years ago
Ross Zurowski	25321cbd01	cmd/hello: truncate long strings (#1328 ) Signed-off-by: Ross Zurowski <ross@rosszurowski.com>	3 years ago
Brad Fitzpatrick	5378776043	cmd/hello: chop DNS name at first dot	3 years ago
Ross Zurowski	6075135e0a	cmd/hello: style welcome message (#1325 ) Signed-off-by: Ross Zurowski <ross@rosszurowski.com>	3 years ago
Brad Fitzpatrick	917307a90c	wgengine/tstun: reply to MagicDNS pings Fixes #849 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	34ffd4f7c6	cmd/hello: serve fake data in dev mode on whois failure	3 years ago
Brad Fitzpatrick	de3001bc79	cmd/hello: in dev mode, live reload template	3 years ago
Josh Bleecher Snyder	11bbfbd8bb	go.mod: update to latest wireguard-go All changes are trivial.	3 years ago
Josh Bleecher Snyder	635e4c7435	wgengine/magicsock: increase legacy ping timeout again I based my estimation of the required timeout based on locally observed behavior. But CI machines are worse than my local machine. 16s was enough to reduce flakiness but not eliminate it. Bump it up again. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	1ec64bc94d	wgengine/router: add another Windows firewall rule to allow incoming UDP Based on @sailorfrag's research. Fixes #1312 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7e201806b1	wgengine/magicsock: reconnect to DERP home after network comes back up Updates #1310	3 years ago
Josh Bleecher Snyder	1f0fa8b814	go.mod: pull in upstream wireguard-go bug fixes	3 years ago
moncho	e101d8396d	portlist, version: update build tags for Go 1.16, Apple M1 Build tags have been updated to build native Apple M1 binaries, existing build tags for ios have been changed from darwin,arm64 to ios,arm64. With this change, running go build cmd/tailscale{,d}/tailscale{,d}.go on an Apple machine with the new processor works and resulting binaries show the expected architecture, e.g. tailscale: Mach-O 64-bit executable arm64. Tested using go version go1.16beta1 darwin/arm64. Updates #943 Signed-off-by: moncho <50428+moncho@users.noreply.github.com>	3 years ago
Brad Fitzpatrick	cbd6224ca4	wgengine/winnet: don't build on non-windows It only affects 'go install ./...', etc, and only on darwin/arm64 (M1 Macs) where the go-ole package doesn't compile. No need to build it. Updates #943	3 years ago
Josh Bleecher Snyder	4a82e36491	go.mod: bump to latest wireguard-go Stabilization and performance improvements.	3 years ago
Brad Fitzpatrick	9b4e50cec0	wgengine/magicsock: fix typo in comment	3 years ago
Naman Sood	07c3df13c6	wgengine/tstun: inform userspaceEngine about injected outbound packets in tundev Signed-off-by: Naman Sood <mail@nsood.in>	3 years ago
Josh Bleecher Snyder	e7caad61fb	wgengine: remove IpcGetOperation filter This was in place because retrieved allowed_ips was very expensive. Upstream changed the data structure to make them cheaper to compute. This commit is an experiment to find out whether they're now cheap enough. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	6b365b0239	wgengine/magicsock: fix DERP reader hang regression during concurrent reads Fixes #1282 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	e1f773ebba	wgengine/magicsock: allow more time for pings to transit We removed the "fast retry" code from our wireguard-go fork. As a result, pings can take longer to transit when retries are required. Allow that. Fixes #1277 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
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.	3 years ago
David Anderson	e86b39b73f	ipn/ipnlocal: don't short-circuit default route filtering. If no exit node is specified, the filter must still run to remove offered default routes from all peers. Signed-off-by: David Anderson <danderson@tailscale.com>	3 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>	3 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	3 years ago
David Anderson	a046b48593	cmd/tailscale/cli: display currently active exit node in `tailscale status`. Signed-off-by: David Anderson <danderson@tailscale.com>	3 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>	3 years ago
Josh Bleecher Snyder	138055dd70	tstest/natlab: use net.ErrClosed instead of a new error Upstream wireguard-go decided to use errors.Is(err, net.ErrClosed) instead of checking the error string. It also provided an unsafe linknamed version of net.ErrClosed for clients running Go 1.15. Switch to that. This reduces the time required for the wgengine/magicsock tests on my machine from ~35s back to the ~13s it was before `456cf8a376`. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 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>	3 years ago
David Anderson	b9c2231fdf	ipn: program exit node into the data plane according to user pref. Part of #1153, #1154. Fixes #1224. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	fb6b0e247c	cmd/tailscaled: rename Windows service to just Tailscale Updates #1232	3 years ago
Brad Fitzpatrick	98f9e82c62	logpolicy: on Windows, use tailscale-ipn log name if it already existed For the migration to tailscaled.exe on Windows, don't create a new logid if one existed under the old filename. Updates #1232	3 years ago
Brad Fitzpatrick	e8d4afedd1	control/controlclient: don't call lite endpoint update path when logged out This was the other half of the #1271 problem. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a7562be5e1	cmd/tailscaled: move more of the Windows server setup code into tailscaled Updates #1232	3 years ago
Brad Fitzpatrick	6f7974b7f2	cmd/tailscaled: add missing depaware.txt update	3 years ago
Brad Fitzpatrick	6099ecf7f4	cmd/tailscaled: run as a service on Windows Updates #1232	3 years ago
Brad Fitzpatrick	7529b74018	control/controlclient: avoid crash sending map request with zero node key Fixes #1271 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Josh Bleecher Snyder	aa6856a9eb	wgengine: adapt to wireguard-go changes Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 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>	3 years ago
Brad Fitzpatrick	6254efb9ef	cmd/tailscale{,d}: move debug subcommand to tailscaled Work on reducing the size of the tailscale binary, which is currently pulling in most of the same code as tailscaled. Updates #1181	3 years ago
Brad Fitzpatrick	70eb05fd47	wgengine: access flow pending problem with lock held Missed review feedback from just-submitted `d37058af72`.	3 years ago
Brad Fitzpatrick	d37058af72	net/packet: add some more TSMP packet reject reasons and MaybeBroken bit Unused for now, but I want to backport this commit to 1.4 so 1.6 can start sending these and then at least 1.4 logs will stringify nicely. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago

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