Commit Graph

33 Commits (70fe4bc5df48b644e454dcb4779672c10f6ff87b)

Author SHA1 Message Date
Kristoffer Dalby 7ed3082e53
ipn/ipnlocal: add primary and approved routes metrics
WIP

Updates tailscale/corp#22075

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
1 month ago
tomholford 16bb541adb wgengine/magicsock: replace deprecated poly1305 (#13184)
Signed-off-by: tomholford <tomholford@users.noreply.github.com>
2 months ago
Maisem Ali 4a8cb1d9f3 all: use math/rand/v2 more
Updates #11058

Signed-off-by: Maisem Ali <maisem@tailscale.com>
5 months ago
Andrew Dunham 4338db28f7 wgengine/magicsock: prefer link-local addresses to private ones
Since link-local addresses are definitionally more likely to be a direct
(lower-latency, more reliable) connection than a non-link-local private
address, give those a bit of a boost when selecting endpoints.

Updates #8097

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I93fdeb07de55ba39ba5fcee0834b579ca05c2a4e
8 months ago
Brad Fitzpatrick e1bd7488d0 all: remove LenIter, use Go 1.22 range-over-int instead
Updates #11058
Updates golang/go#65685

Change-Id: Ibb216b346e511d486271ab3d84e4546c521e4e22
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Jordan Whited 8b47322acc
wgengine/magicsock: implement probing of UDP path lifetime (#10844)
This commit implements probing of UDP path lifetime on the tail end of
an active direct connection. Probing configuration has two parts -
Cliffs, which are various timeout cliffs of interest, and
CycleCanStartEvery, which limits how often a probing cycle can start,
per-endpoint. Initially a statically defined default configuration will
be used. The default configuration has cliffs of 10s, 30s, and 60s,
with a CycleCanStartEvery of 24h. Probing results are communicated via
clientmetric counters. Probing is off by default, and can be enabled
via control knob. Probing is purely informational and does not yet
drive any magicsock behaviors.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
9 months ago
Jordan Whited b084888e4d
wgengine/magicsock: fix typos in docs (#10729)
Updates #cleanup

Signed-off-by: Jordan Whited <jordan@tailscale.com>
10 months ago
Jordan Whited 2ff54f9d12
wgengine/magicsock: move trustBestAddrUntil forward on non-disco rx (#10274)
This is gated behind the silent disco control knob, which is still in
its infancy. Prior to this change disco pong reception was the only
event that could move trustBestAddrUntil forward, so even though we
weren't heartbeating, we would kick off discovery pings every
trustUDPAddrDuration and mirror to DERP.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
12 months ago
Jordan Whited c99488ea19
wgengine/magicsock: fix typo in endpoint.sendDiscoPing() docs (#10232)
Updates #cleanup

Signed-off-by: Jordan Whited <jordan@tailscale.com>
12 months ago
Jordan Whited e848736927
control/controlknobs,wgengine/magicsock: implement SilentDisco toggle (#10195)
This change exposes SilentDisco as a control knob, and plumbs it down to
magicsock.endpoint. No changes are being made to magicsock.endpoint
disco behavior, yet.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
12 months ago
Charlotte Brandhorst-Satzkorn 839fee9ef4 wgengine/magicsock: handle wireguard only clean up and log messages
This change updates log messaging when cleaning up wireguard only peers.
This change also stops us unnecessarily attempting to clean up disco
pings for wireguard only endpoints.

Updates #7826

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
1 year ago
Brad Fitzpatrick c363b9055d tstest/integration: add tests for tun mode (requiring root)
Updates #7894

Change-Id: Iff0b07b21ae28c712dd665b12918fa28d6f601d0
Co-authored-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick a6270826a3 wgengine/magicsock: fix data race regression in disco ping callbacks
Regression from c15997511d. The callback could be run multiple times
from different endpoints.

Fixes #9801

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Val 249edaa349 wgengine/magicsock: add probed MTU metrics
Record the number of MTU probes sent, the total bytes sent, the number of times
we got a successful return from an MTU probe of a particular size, and the max
MTU recorded.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Val 893bdd729c disco,net/tstun,wgengine/magicsock: probe peer MTU
Automatically probe the path MTU to a peer when peer MTU is enabled, but do not
use the MTU information for anything yet.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Val 4130851f12 wgengine/magicsock: probe but don't use path MTU from CLI ping
When sending a CLI ping with a specific size, continue to probe all possible UDP
paths to the peer until we find one with a large enough MTU to accommodate the
ping. Record any peer path MTU information we discover (but don't use it for
anything other than CLI pings).

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Val 67926ede39 wgengine/magicsock: add MTU to addrLatency and rename to addrQuality
Add a field to record the wire MTU of the path to this address to the
addrLatency struct and rename it addrQuality.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Brad Fitzpatrick 425cf9aa9d tailcfg, all: use []netip.AddrPort instead of []string for Endpoints
It's JSON wire compatible.

Updates #cleanup

Change-Id: Ifa5c17768fec35b305b06d75eb5f0611c8a135a6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Val c608660d12 wgengine,net,ipn,disco: split up and define different types of MTU
Prepare for path MTU discovery by splitting up the concept of
DefaultMTU() into the concepts of the Tailscale TUN MTU, MTUs of
underlying network interfaces, minimum "safe" TUN MTU, user configured
TUN MTU, probed path MTU to a peer, and maximum probed MTU. Add a set
of likely MTUs to probe.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Val 6cc5b272d8 Revert "wgengine,net,ipn,disco: split up and define different types of MTU"
This reverts commit 059051c58a.

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Val 059051c58a wgengine,net,ipn,disco: split up and define different types of MTU
Prepare for path MTU discovery by splitting up the concept of
DefaultMTU() into the concepts of the Tailscale TUN MTU, MTUs of
underlying network interfaces, minimum "safe" TUN MTU, user configured
TUN MTU, probed path MTU to a peer, and maximum probed MTU. Add a set
of likely MTUs to probe.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Brad Fitzpatrick 3af051ea27 control/controlclient, types/netmap: start plumbing delta netmap updates
Currently only the top four most popular changes: endpoints, DERP
home, online, and LastSeen.

Updates #1909

Change-Id: I03152da176b2b95232b56acabfb55dcdfaa16b79
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick d050700a3b wgengine/magicsock: make peerMap also keyed by NodeID
In prep for incremental netmap update plumbing (#1909), make peerMap
also keyed by NodeID, as all the netmap node mutations passed around
later will be keyed by NodeID.

In the process, also:

* add envknob.InDevMode, as a signal that we can panic more aggressively
  in unexpected cases.
* pull two moderately large blocks of code in Conn.SetNetworkMap out
  into their own methods
* convert a few more sets from maps to set.Set

Updates #1909

Change-Id: I7acdd64452ba58e9d554140ee7a8760f9043f961
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
James Tucker e1c7e9b736 wgengine/magicsock: improve endpoint selection for WireGuard peers with rx time
If we don't have the ICMP hint available, such as on Android, we can use
the signal of rx traffic to bias toward a particular endpoint.

We don't want to stick to a particular endpoint for a very long time
without any signals, so the sticky time is reduced to 1 second, which is
large enough to avoid excessive packet reordering in the common case,
but should be small enough that either rx provides a strong signal, or
we rotate in a user-interactive schedule to another endpoint, improving
the feel of failover to other endpoints.

Updates #8999

Co-authored-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>

Signed-off-by: James Tucker <james@tailscale.com>
Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
1 year ago
James Tucker 5edb39d032 wgengine/magicsock: clear out endpoint statistics when it becomes bad
There are cases where we do not detect the non-viability of a route, but
we will instead observe a failure to send. In a Disco path this would
normally be handled as a side effect of Disco, which is not available to
non-Disco WireGuard nodes. In both cases, recognizing the failure as
such will result in faster convergence.

Updates #8999
Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Charlotte Brandhorst-Satzkorn 7c9c68feed wgengine/magicsock: update lastfullping comment to include wg only
LastFullPing is now used for disco or wireguard only endpoints. This
change updates the comment to make that clear.

Updates #7826

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
1 year ago
James Tucker 3a652d7761 wgengine/magicsock: clear endpoint state in noteConnectivityChange
There are latency values stored in bestAddr and endpointState that are
no longer applicable after a connectivity change and should be cleared
out, following the documented behavior of the function.

Updates #8999

Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Val c15997511d wgengine/magicsock: only accept pong sent by CLI ping
When sending a ping from the CLI, only accept a pong that is in reply
to the specific CLI ping we sent.

Updates #311

Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Brad Fitzpatrick 58a4fd43d8 types/netmap, all: use read-only tailcfg.NodeView in NetworkMap
Updates #8948

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick bc0eb6b914 all: import x/exp/maps as xmaps to distinguish from Go 1.21 "maps"
Updates #8419

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
salman aljammaz 25a7204bb4
wgengine,ipn,cmd/tailscale: add size option to ping (#8739)
This adds the capability to pad disco ping message payloads to reach a
specified size. It also plumbs it through to the tailscale ping -size
flag.

Disco pings used for actual endpoint discovery do not use this yet.

Updates #311.

Signed-off-by: salman <salman@tailscale.com>
Co-authored-by: Val <valerie@tailscale.com>
1 year ago
David Anderson 9a76deb4b0 disco: move disco pcap helper to disco package
Updates tailscale/corp#13464

Signed-off-by: David Anderson <danderson@tailscale.com>
1 year ago
David Anderson f7016d8c00 wgengine/magicsock: factor out endpoint into its own file
Updates tailscale/corp#13464

Signed-off-by: David Anderson <danderson@tailscale.com>
1 year ago