Commit Graph

20 Commits (cb96b14bf4b8c9d32884fc536a12b3b04641a8c7)

Author SHA1 Message Date
Brad Fitzpatrick eccc167733 wgengine/monitor: fix memory corruption in Windows implementation
I used the Windows APIs wrong previously, but it had worked just
enough.

Updates #921

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 22c462bd91 wgengine/monitor: fix copy/paste-o to actually monitor route changes
Due to a copy/paste-o, we were monitoring address changes twice, and
not monitoring route changes at all.

Verified with 'tailscale debug --monitor' that this actually works now (while
running 'route add 10.3.0.0 mask 255.255.0.0 10.0.0.1' and 'route delete (same)'
back and forth in cmd.exe)

In practice route changes are accompanied by address changes and this
doesn't fix any known issues. I just noticed this while reading this
code again. But at least the code does what it was trying to do now.
4 years ago
Brad Fitzpatrick 24d1a38e81 wgengine/monitor: add a poller to the Windows link change monitor
The poller is slow by default, but speeds up for a bit after a network
change, in case WPAD/PAC files are still loading.
4 years ago
Disconnect3d 44598e3e89 wgengine/monitor_freebsd.go: remove duplicated errcheck
Signed-off-by: disconnect3d <dominik.b.czarnota@gmail.com>
4 years ago
Brad Fitzpatrick dbb4c246fa wgengine/monitor: add Windows linkchange monitor
Updates tailscale/corp#553

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b983e5340f wgengine/monitor: add, clean up netlink logging on route changes
Updates #643
4 years ago
Brad Fitzpatrick 43bc86588e wgengine/monitor: log RTM_DELROUTE details, fix format strings
Updates #643
4 years ago
Wendi Yu c3736250a4
wgengine: fix macos staticcheck errors (#557)
Signed-off-by: Wendi <wendi.yu@yahoo.ca>
4 years ago
Brad Fitzpatrick ce1b52bb71 wgengine/monitor: fix other potential crashes on Linux
Never return "nil, nil" anymore. The caller expected a usable
interface now. I missed some of these earlier.

Also, handle address deletion now.

Updates #532
4 years ago
Brad Fitzpatrick 4b75a27969 wgengine/monitor: fix crash on Linux on type 21 messages
Fixes #532
4 years ago
Brad Fitzpatrick 4db60a8436 wgengine/monitor: parse Linux netlink messages, ignore our own events
Fixes tailscale/corp#412 ("flood of link change events at start-up")

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Elias Naur 2dac4f2b24 wgengine/monitor: disable monitor on Android
Netlink is not supported on Android.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
5 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>
5 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.
5 years ago
Tobias Klauser 4d09316f9a wgengine/monitor: use RTMGRP_* consts from x/sys/unix
Bump golang.org/x/sys/unix to get the RTMGRP_* consts and use them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
5 years ago
Brad Fitzpatrick 997678f540 wgengine/monitor: make Close not block forever on Linux
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 7f5e3febe5 wgengine: move link monitor to be owned by the engine, not the router
And make the monitor package portable with no-op implementations on
unsupported operating systems.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 79295b1138 wgengine: simplify, change some signatures
* make RouterGen return an error, not take both tunname and tundev
* also remove RouteGen taking a wireguard/device.Device; currently unused
* remove derp parameter (it'll work differently)
* unexport NewUserspaceRouter in per-OS impls, add documented wrapper

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 2896be60db Move "logger" package to under types, now that we have it.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
wardn 2cafbd74c7 monitor: refactor for architecture-specific connection implementations
Signed-off-by: wardn <wardn@users.noreply.github.com>
5 years ago