718 Commits (1642dfdb0719782ef47744e93837787a9fc2b41c)

Author	SHA1	Message	Date
Brad Fitzpatrick	602f92ec30	wgengine/monitor: log warning if state changes but stringification doesn't ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a6d098c750	wgengine/magicsock: log when DERP connection succeeds ... Updates #1310	4 years ago
Brad Fitzpatrick	829eb8363a	net/interfaces: sort returned addresses from LocalAddresses ... Also change the type to netaddr.IP while here, because it made sorting easier. Updates tailscale/corp#1397 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ffa70a617d	wgengine{,/monitor}: restore Engine.LinkChange, add Mon.InjectEvent ... The Engine.LinkChange method was recently removed in e3df29d488 while misremembering how Android's link state mechanism worked. Rather than do some last minute rearchitecting of link state on Android before Tailscale 1.6, restore the old Engine.LinkChange hook for now so the Android client doesn't need any changes. But change how it's implemented to instead inject an event into the link monitor. Fixes #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Denton Gentry	061422affc	freebsd: ignore IPv6 for now ... FreeBSD tun devices don't work with the way we implement IPv6 https://github.com/tailscale/tailscale/issues/1307 At least for now, remove any IPv6 addresses from the netmap. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	4 years ago
David Anderson	1cb0ffc3ff	wgengine/router: make windows gracefully handle disabled IPv4 or IPv6. ... This is necessary because either protocol can be disabled globally by a Windows registry policy, at which point trying to touch that address family results in "Element not found" errors. This change skips programming address families that Windows tell us are unavailable. Fixes #1396. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	f858b0d25f	wgengine/netstack: remove some v2 logging by default ... Even with [v2], it still logtails and takes time to format. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	d01c60dad5	wgengine/netstack: use system dialer to contact servers on localhost ... Updates #504 Updates #707 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	7461dded88	wgengine/monitor: on unsupported platforms, use a polling implementation ... Not great, but lets people working on new ports get going more quickly without having to do everything up front. As the link monitor is getting used more, I felt bad having a useless implementation. Updates #815 Updates #1427 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	8d77dfdacb	wgengine/router: add a dummy IPv6 address if needed for default routing. ... Fixes #1339 Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	c3e5903b91	wgengine/magicsock: remove leftover portmapper debug logging ... It's already logged at the right time in logEndpointChange. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	95c03d1ead	wgengine/netstack: forward incoming connections to localhost ... Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Brad Fitzpatrick	471f0c470a	wgengine/monitor: skip some macOS route updates, fix debounce regression ... Debound was broken way back in 5c1e443d34 and we never noticed. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	f304a45481	wgengine/monitor: add skipped failing test for Darwin route message bug ... Updates #1416 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	31721759f3	wgengine/monitor: don't return nil, nil in darwin monitor ... We used to allow that, but now it just crashes. Separately I need to figure out why it got into this path at all, which is #1416. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Christine Dodrill	b89c757817	wgengine/tsdns: explicitly reject .onion lookups ... Tor has a location-hidden service feature that enables users to host services from inside the Tor network. Each of these gets a unique DNS name that ends with .onion. As it stands now, if a misbehaving application somehow manages to make a .onion DNS request to our DNS server, we will forward that to the DNS server, which could leak that to malicious third parties. See the recent bug Brave had with this[1] for more context. RFC 7686 suggests that name resolution APIs and libraries MUST respond with NXDOMAIN unless they can actually handle Tor lookups. We can't handle .onion lookups, so we reject them. [1]: https://twitter.com/albinowax/status/1362737949872431108 Fixes tailscale/corp#1351 Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	24fa616e73	wgengine/monitor: make Darwin monitor shut down cleanly, add test ... Don't use os.NewFile or (*os.File).Close on the AF_ROUTE socket. It apparently does weird things to the fd and at least doesn't seem to close it. Just use the unix package. The test doesn't actually fail reliably before the fix, though. It was an attempt. But this fixes the integration tests. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	487c520109	wgengine: fix bug from earlier commit ... Commit e3df29d488 introduced this bug where the interfaces-were-changed-or-not bit got lost. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	793cb131f0	wgengine/router: toggle killswitch when using default routes on windows. ... Fixes #1398. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	e3df29d488	wgengine{,/monitor}: move interface state fetching/comparing to monitor ... Gets it out of wgengine so the Engine isn't responsible for being a callback registration hub for it. This also removes the Engine.LinkChange method, as it's no longer necessary. The monitor tells us about changes; it doesn't seem to need any help. (Currently it was only used by Swift, but as of 14dc790137 we just do the same from Go) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a038e8690c	wgengine/netstack: fix 32-bit build broken from prior commit ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	38dc6fe758	cmd/tailscaled, wgengine: remove --fake, replace with netstack ... And add a --socks5-server flag. And fix a race in SOCKS5 replies where the response header was written concurrently with the copy from the backend. Co-authored with Naman Sood. Updates #707 Updates #504 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	d74cddcc56	wgengine/netstack: add Magic DNS + DNS resolution to SOCKS5 dialing ... Updates #707 Updates #504 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	34188d93d4	wgengine/monitor: start moving interface state accessor into monitor ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	14dc790137	wgengine/monitor: make the darwin link monitor work in the sandbox too ... Previously tailscaled on macOS was running "/sbin/route monitor" as a child process, but child processes aren't allowed in the Network Extension / App Store sandbox. Instead, just do what "/sbin/route monitor" itself does: unix.Socket(unix.AF_ROUTE, unix.SOCK_RAW, 0) and read that. We also parse it now, but don't do anything with the parsed results yet. We will over time, as we have with Linux netlink messages over time. Currently any message is considered a signal to poll and see what changed. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	a55a03d5ff	wgengine: let LinkMonitor be passed in to NewUserspaceEngine ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	ee6475a44d	wgengine: unify NewUserspaceEngine, NewUserspaceEngineAdvanced ... Also rename EngineConfig to Config to avoid wgengine.EngineConfig stutter. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	dda03a911e	wgengine/monitor: change API to permit multiple independent callbakcks ... Currently it assumes exactly 1 registered callback. This changes it to support 0, 1, or more than 1. This is a step towards plumbing wgengine/monitor into more places (and moving some of wgengine's interface state fetching into monitor in a later step) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	0eea490724	wgengine: also close link monitor on NewUserspaceEngineAdvanced error ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Naman Sood	fec9dcbda1	wgengine/netstack: start SOCKS5 server in netstack mode ... Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Naman Sood	517c90d7e5	wgengine, cmd/tailscaled: refactor netstack, forward TCP to hello as demo (#1301) ... Updates #707 Updates #504 Signed-off-by: Naman Sood <mail@nsood.in>	4 years ago
Aleksandar Pesic	daf6de4f14	wgengine: make NewUserspaceEngine wait for TUN interface to be up on Windows ... Updates #474 Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>	4 years ago
Brad Fitzpatrick	ea3715e3ce	wgengine/magicsock: remove TODO about endpoints-over-DERP ... It was done in Tailscale 1.4 with CallMeMaybe disco messages containing endpoints. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	54d7070121	wgengine/router: correctly read IPv6 routes when diffing. ... Fixes #1185. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	2404c0ffad	ipn/ipnlocal: only filter out default routes when computing the local wg config. ... UIs need to see the full unedited netmap in order to know what exit nodes they can offer to the user. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	e9e4f1063d	wgengine/magicsock: fix discoEndpoint caching bug when a node key changes ... Fixes #1391 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c64bd587ae	net/portmapper: add NAT-PMP client, move port mapping service probing ... * move probing out of netcheck into new net/portmapper package * use PCP ANNOUNCE op codes for PCP discovery, rather than causing short-lived (sub-second) side effects with a 1-second-expiring map + delete. * track when we heard things from the router so we can be less wasteful in querying the router's port mapping services in the future * use portmapper from magicsock to map a public port Fixes #1298 Fixes #1080 Fixes #1001 Updates #864 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	d038a5295d	wgengine/wglog: drop 1/s "interface is up" messages. ... Fixes #1388. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	188bb14269	wgengine: consistently close things when NewUserspaceEngineAdvanced errors ... Fixes #1363 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
David Anderson	6e42430ad8	wgengine/monitor: don't log any single-IP routes added to the tailscale table. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	df5adb2e23	wgengine/monitor: on linux, also monitor for IPv6 changes. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
David Anderson	b83c273737	wgengine/filter: use IPSet for localNets instead of prefixes. ... Part of #1177, preparing for doing fancier set operations on the allowed local nets. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	fd8e070d01	health, control/controlclient, wgengine: report when router unhealthy ... Updates tailscale/corp#1338 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	2d96215d97	wgengine/router: make Linux delRoute idempotent, cidrDiff fail late as possible ... This makes cidrDiff do as much as possible before failing, and makes a delete of an already-deleted rule be a no-op. We should never do this ourselves, but other things on the system can, and this should help us recover a bit. Also adds the start of root-requiring tests. TODO: hook into wgengine/monitor and notice when routes are changed behind our back, and invalidate our routes map and re-read from kernel (via the ip command) at least on the next reconfig call. Updates tailscale/corp#1338 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	96a488e37e	wgengine/router: simplify func normalizeCIDR using netaddr method	4 years ago
Brad Fitzpatrick	d98ef5699d	wgengine/filter: remove redundant code ... no generated code change.	4 years ago
Brad Fitzpatrick	65815cc1ac	wgengine/tsdns: skip test that requires local IPv6 when IPv6 unavailable ... Fixes #1292 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	36189e2704	wgengine/monitor: prevent shutdown hang in darwin link monitor	4 years ago
Brad Fitzpatrick	bbb4631e04	safesocket, wgengine: add some darwin failure diagnostic hints	4 years ago
Brad Fitzpatrick	4f7d60ad42	wgengine/monitor: add a darwin implementation for tailscaled mode ... Tangentially related to #987, #177, #594, #925, #505 Motivated by rebooting a launchd-controlled tailscaled and it going into SetNetworkUp(false) mode immediately because there really is no network up at system boot, but then it got stuck in that paused state forever, without a monitor implementation.	4 years ago
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>	4 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.	4 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>	4 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>	4 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>	4 years ago
Brad Fitzpatrick	88ab0173a7	wgengine/router: fix BSD router to support multiple local addrs, IPv6 ... Fixes #1201	4 years ago
Brad Fitzpatrick	917307a90c	wgengine/tstun: reply to MagicDNS pings ... Fixes #849 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 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>	4 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>	4 years ago
Brad Fitzpatrick	7e201806b1	wgengine/magicsock: reconnect to DERP home after network comes back up ... Updates #1310	4 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	4 years ago
Brad Fitzpatrick	9b4e50cec0	wgengine/magicsock: fix typo in comment	4 years ago
Naman Sood	07c3df13c6	wgengine/tstun: inform userspaceEngine about injected outbound packets in tundev ... Signed-off-by: Naman Sood <mail@nsood.in>	4 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>	4 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>	4 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>	4 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.	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	aa6856a9eb	wgengine: adapt to wireguard-go changes ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 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>	4 years ago
Brad Fitzpatrick	70eb05fd47	wgengine: access flow pending problem with lock held ... Missed review feedback from just-submitted d37058af72.	4 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>	4 years ago
Brad Fitzpatrick	f7eed25bb9	wgengine/magicsock: filter disco packets and packets when stopped from wireguard ... Fixes #1167 Fixes tailscale/corp#219 Signed-off-by: Brad Fitzpatrick <bradfitz@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
Brad Fitzpatrick	a2aa6cd2ed	wgengine/router: clarify disabled IPv6 message on Linux	4 years ago
David Anderson	267531e4f8	wgengine/router: probe better for v6 policy routing support. ... Previously we disabled v6 support if the disable_policy knob was missing in /proc, but some kernels support policy routing without exposing the toggle. So instead, treat disable_policy absence as a "maybe", and make the direct `ip -6 rule` probing a bit more elaborate to compensate. Fixes #1241. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	717c715c96	wgengine/wglog: don't log failure to send data packets ... Fixes #1239	4 years ago
Josh Bleecher Snyder	dd10babaed	wgenginer/magicsock: remove Addrs methods ... They are now unused. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	761188e5d2	wgengine/wgcfg: fix validateEndpoints of empty string ... Updates tailscale/corp#1238	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
Brad Fitzpatrick	c7fc4a06da	wgengine/router: don't configure IPv6 on Linux when IPv6 is unavailable ... Fixes #1214 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4d943536f1	wgengine: don't leak TUN device in NewUserspaceEngine error path ... Updates #1187 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	9f5b0d058f	wgengine: fix bugs from earlier fix ... Fixes a regression from e970ed0995 that wasn't covered by tests in this repo. (Our end-to-end tests in another repo caught this.) Updates #1204	4 years ago
Brad Fitzpatrick	e970ed0995	wgengine: fix crash reading long UAPI lines from legacy peers ... Also don't log.Fatalf in a function returning an error. Fixes #1204 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	4fea604979	wgengine/router: stop setPrivateNetwork goroutine on configureInterface failure ... On Windows, configureInterface starts a goroutine reconfiguring the Windows firewall. But if configureInterface fails later, that goroutine kept running and likely failing forever, spamming logs. Make it stop quietly if its launching goroutine filed.	4 years ago
David Anderson	9f7cbf6cf1	wgengine/filter: add a Clone method. ... Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	e7bf144c3f	ipn, wgengine/filter: fix Shields Up recent regression and old bug ... Fixes #1192 (regression) Fixes #1193 (old bug)	4 years ago
Brad Fitzpatrick	97496a83af	wgengine/tstun: also support DropSilently on PostFilterIn ... Not a problem (yet). But should be consistent with other places that support both types of drops.	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
Brad Fitzpatrick	9541886856	wgengine/magicsock: disable regular STUNs for all platforms by default ... Reduces background CPU & network. Updates #1034 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	c55d26967b	wgengine/magicsock: log more details of endpoints learned over disco ... Also, don't try to use IPv6 LinkLocalUnicast addresses for now. Like endpoints exchanged with control, we share them but don't yet use them. Updates #1172	4 years ago
Brad Fitzpatrick	359055d3fa	wgengine/magicsock: fix logging regression ... c8c493f3d9 made it always say `created=false` which scared me when I saw it, as that would've implied things were broken much worse. Fortunately the logging was just wrong.	4 years ago
Brad Fitzpatrick	edf64e0901	wgengine/magicsock: send, use endpoints in CallMeMaybe messages ... Fixes #1172 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	b5b4992eff	disco: support parsing/encoding endpoints in call-me-maybe frames ... Updates #1172 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	d3dd7c6270	wgengine/magicsock: make legacy DstToString match Addrs ... DstToString is used in two places in wireguard-go: Logging and uapi. We are switching to use uapi for wireguard-go config. To preserve existing behavior, we need the full set of addrs. And for logging, having the full set of addrs seems useful. (The Addrs method itself is slated for removal. When that happens, the implementation will move to DstToString.) Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	187e22a756	wgengine/magicsock: don't run the DERP cleanup so often ... To save CPU and wakeups, don't run the DERP cleanup timer regularly unless there is a non-home DERP connection open. Also eliminates the goroutine, moving to a time.AfterFunc. Updates #1034 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Josh Bleecher Snyder	5fe5402fcd	Revert "wgengine/magicsock: shortcircuit discoEndpoint.heartbeat when its connection is closed" ... This reverts commit 08baa17d9a. It caused deadlocks due to lock ordering violations. It was not the right fix, and thus should simply be reverted while we look for the right fix (if we haven't already found it in the interim; we've fixed other logging-after-test issues). Fixes #1161	4 years ago
Josh Bleecher Snyder	e4c075cd95	wgengine/magicsock: prevent log-after-test in TestTwoDevicePing	4 years ago