Commit Graph

10 Commits (a1abd12f351cfb625c5ac9bca243d0bc46dbdbfd)

Author SHA1 Message Date
Brad Fitzpatrick b2b836214c derp/derphttp: fix derptrack fix
3d7fb6c21d dropped the explicit called to (*Client).connect when
its (*Client).WatchConnectionChanges got removed+refactored.

This puts it back, but in RunWatchConnectionLoop, before the call
to the (*Client).ServerPublicKey accessor, which is documented to
return the zero value (which is what broke us) on an unconnected
connection.

Plus some tests.

Fixes tailscale/corp#15604

Change-Id: I0f242816f5ee4ad3bb0bf0400abc961dbe9f5fc8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Anton Tolchanov 3114a1c88d derp/derphttp: add watch reconnection tests from #9719
Co-authored-by: Val <valerie@tailscale.com>
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
1 year ago
Brad Fitzpatrick 3d7fb6c21d derp/derphttp: fix race in mesh watcher
The derphttp client automatically reconnects upon failure.

RunWatchConnectionLoop called derphttp.Client.WatchConnectionChanges
once, but that wrapper method called the underlying
derp.Client.WatchConnectionChanges exactly once on derphttp.Client's
currently active connection. If there's a failure, we need to re-subscribe
upon all reconnections.

This removes the derphttp.Client.WatchConnectionChanges method, which
was basically impossible to use correctly, and changes it to be a
boolean field on derphttp.Client alongside MeshKey and IsProber. Then
it moves the call to the underlying derp.Client.WatchConnectionChanges
to derphttp's client connection code, so it's resubscribed on any
reconnect.

Some paranoia is then added to make sure people hold the API right,
not calling derphttp.Client.RunWatchConnectionLoop on an
already-started Client without having set the bool to true. (But still
auto-setting it to true if that's the first method that's been called
on that derphttp.Client, as is commonly the case, and prevents
existing code from breaking)

Fixes tailscale/corp#9916
Supercedes tailscale/tailscale#9719

Co-authored-by: Val <valerie@tailscale.com>
Co-authored-by: Irbe Krumina <irbe@tailscale.com>
Co-authored-by: Anton Tolchanov <anton@tailscale.com>
Signed-off-by: Brad Fitzpatrick <brad@danga.com>
1 year ago
Brad Fitzpatrick 6c791f7d60 derp: include src IPs in mesh watch messages
Updates tailscale/corp#13945

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Claire Wang 90a7d3066c
derp: use tstime (#8634)
Updates #8587

Signed-off-by: Claire Wang <claire@tailscale.com>
1 year ago
valscale 74eb99aed1
derp, derphttp, magicsock: send new unknown peer frame when destination is unknown (#7552)
* wgengine/magicsock: add envknob to send CallMeMaybe to non-existent peer

For testing older client version responses to the PeerGone packet format change.

Updates #4326

Signed-off-by: Val <valerie@tailscale.com>

* derp: remove dead sclient struct member replaceLimiter

Leftover from an previous solution to the duplicate client problem.

Updates #2751

Signed-off-by: Val <valerie@tailscale.com>

* derp, derp/derphttp, wgengine/magicsock: add new PeerGone message type Not Here

Extend the PeerGone message type by adding a reason byte. Send a
PeerGone "Not Here" message when an endpoint sends a disco message to
a peer that this server has no record of.

Fixes #4326

Signed-off-by: Val <valerie@tailscale.com>

---------

Signed-off-by: Val <valerie@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
David Anderson 37c150aee1 derp: use new node key type.
Update #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 741d654aa3 derp/derphttp: add a context and infoLogger option to RunWatchConnectionLoop 4 years ago
Brad Fitzpatrick c8cf3169ba cmd/derper, derp/derphttp: move bulk of derp mesh code into derphttp
To be reused in various other tools.
4 years ago