Commit Graph

1800 Commits (8ee1cb6156840b09c60fcba2d9f8ee294d6d75f1)
 

Author SHA1 Message Date
Brad Fitzpatrick bc73dcf204 wgengine/magicsock: don't block in Send waiting for derphttp.Send
Fixes #137
Updates #109
Updates #162
Updates #163

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 8807913be9 wgengine/magicsock: wait for previous DERP goroutines to end before new ones
Updates #109 (hopefully fixes, will wait for graphs to be happy)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick eff6dcdb4e wgengine/magicsock: log more about why we're re-STUNing 4 years ago
David Crawshaw 5ad947c761 cmd/derper: set a write timeout
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 72dbf26f63 derp: test that client a->b and a->c relaying do not interfere
Without the recent write deadline introduction, this test fails.

They still do interfere, but the interference is now bound by
the write deadline. Many improvements are possible.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw e838b3fb59 derp: use a write timeout when sending to clients
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 3df1b97ea8 derp: do not treat failure to relay as the fault of the sender
If Alice attempts to send a packet to Bob and the DERP server
encounters an error on the socket to Bob, we should not disconnect
Alice for that.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 43aa8595dd derp: introduce Conn interface
This lets us test with something other than a net.Conn.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 41ac4a79d6 net/nettest: new package with net-like testing primitives
This is a lot like wiring up a local UDP socket, read and write
deadlines work. The big difference is the Block feature, which
lets you stop the packet flow without breaking the connection.
This lets you emulate broken sockets and test timeouts actually
work.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick 52c0cb12fb stunner: return wrapped error (currently unused) 4 years ago
Brad Fitzpatrick b4d02a251a syncs: add new package for extra sync types 4 years ago
David Crawshaw 57f220656c ipn: search for ErrStateNotExist with errors.Is
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Avery Pennarun 40c6f952c5 Merge branch 'master' of github.com:tailscale/tailscale into HEAD
* 'master' of github.com:tailscale/tailscale:
  netcheck: fix data races for staggler STUN packets arriving after GetReport
  wgengine/magicsock: add a pointer value for logging
  netcheck: ignore IPv4 STUN failures if we saw at least one reply
  netcheck: ignore IPv6 STUN failures
  derp: add clients_replaced counter
  version: bump OSS version datestamp.
4 years ago
Avery Pennarun 509247bf42 tailscale, tailscaled: update safesocket port number.
This makes them able to connect to each other on Windows.
4 years ago
Brad Fitzpatrick afc3479d04 netcheck: fix data races for staggler STUN packets arriving after GetReport
Fixes #179
4 years ago
Brad Fitzpatrick b3ddf51a15 wgengine/magicsock: add a pointer value for logging
Updates #109

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0d3f42e1d8 netcheck: ignore IPv4 STUN failures if we saw at least one reply
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ed7e088729 netcheck: ignore IPv6 STUN failures
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 4fd29349b9 derp: add clients_replaced counter
Updates #109
4 years ago
David Anderson b364a871bf version: bump OSS version datestamp. 4 years ago
David Anderson 72d9e1d633 go.mod: bump wireguard-go version. 4 years ago
Brad Fitzpatrick b0f8931d26 wgengine/magicsock: make a test signature a bit more explicit 4 years ago
David Crawshaw 7ec54e0064 wgengine/magicsock: remove TODO
The TODO above derphttp.NewClient suggests it does network I/O,
but the derphttp client connects lazily and so creating one is
very cheap.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw af58cfc476 go.mod: bump wireguard-go version
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick 01b4bec33f stunner: re-do how Stunner works
It used to make assumptions based on having Anycast IPs that are super
near. Now we're intentionally going to a bunch of different distant
IPs to measure latency.

Also, optimize how the hairpin detection works. No need to STUN on
that socket. Just use that separate socket for sending, once we know
the other UDP4 socket's endpoint. The trick is: make our test probe
also a STUN packet, so it fits through magicsock's existing STUN
routing.

This drops netcheck from ~5 seconds to ~250-500ms.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 4affea2691 go.mod: bump wireguard-go version.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 77af7e5436 wgengine/magicsock: mark test logfunc as a helper.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 7eda3af034 wgengine/magicsock: clean up derp http servers on shutdown.
Failure to do this leads to fd exhaustion at -count=10000,
and increasingly poor execution north of -count=100.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson d651715528 wgengine/magicsock: synchronize test STUN shutdown.
Failure to do so triggers either a data race or a panic
in the testing package, due to racey use of t.Logf.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 86baf60bd4 wgengine/magicsock: synchronize epUpdate cleanup on shutdown.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 023df9239e Move linkstate boring change filtering to magicsock
So we can at least re-STUN on boring updates.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 592fec7606 wgengine/magicsock: move device close to uncursed portion of test.
Device close used to suffer from deadlocks, but no longer.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a265d7cbff wgengine/magicsock: in STUN-disabled test mode, let endpoint discovery proceed 4 years ago
Brad Fitzpatrick 5c1e443d34 wgengine/monitor: don't call LinkChange when interfaces look unchanged
Basically, don't trust the OS-level link monitor to only tell you
interesting things. Sanity check it.

Also, move the interfaces package into the net directory now that we
have it.
4 years ago
Brad Fitzpatrick 39c0ae1dba derp/derpmap: new DERP config package, merge netcheck into magicsock more
Fixes #153
Updates #162
Updates #163

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick bd0e20f351 net/dnscache: ignore annoying staticcheck check 4 years ago
Brad Fitzpatrick d44325295e net/dnscache: initialize the single Resolver more directly 4 years ago
Brad Fitzpatrick d07146aafb go.mod, go.sum: update 4 years ago
David Crawshaw 5f2a17482b ipn: when enforcing defaults, set UsePacketFilter=true
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw cac68fe102 net/dnscache: do not PreferGo on macOS/iOS
With this commit my iPhone can now DERP.
4 years ago
Brad Fitzpatrick 5d8001d0ad derp: add varz for home moves
Updates #162
Updates #163 (maybe)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 8f0fd01efd net/dnscache: add copyright header to test 4 years ago
David Crawshaw 5a1ce4adae net/dnscache: parse passed CIDR
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick 4800926006 wgengine/magicsock: add AddrSet appendDests+UpdateDst tests 4 years ago
David Crawshaw e201f63230 magicsock: unskip tests that are reliable
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw f5e0407e97 ipn: exercise logout in e2e test
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 0f73070a57 wgengine: shut down wireguard on Close
This was (presumably) missing from wgengine because the
interactions between magicsock and wireguard-go meant that the
shutdown never worked. Now those are fixed, actually shut down.

Fixes occasional flake in expanded ipn/e2e_test.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw d99498bee2 controlclient: set default TimeNow function
Panic on call to nil func found by expanded ipn/e2e_test.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 1dee36a984 ipn: put e2e login section in its own subtest
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 66505358c0 ipn: move e2e test skipping into subtests
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago