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The control plane will sometimes determine that a node is not online,
while the node is still able to connect to its peers. This patch
doesn’t solve this problem, but it does mitigate it.
This PR introduces the `client-side-reachability` node attribute that
switches the node to completely ignore the online signal from control.
In the future, the client itself should collect reachability data from
active Wireguard flows and Tailscale pings.
Updates #17366
Updates tailscale/corp#30379
Updates tailscale/corp#32686
Signed-off-by: Simon Law <sfllaw@tailscale.com>
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routes/exit nodes
Saves 262 KB so far. I'm sure I missed some places, but shotizam says
these were the low hanging fruit.
Updates #12614
Change-Id: Ia31c01b454f627e6d0470229aae4e19d615e45e3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Updates #cleanup
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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Saves 328 KB (2.5%) off the minimal binary.
For IoT devices that don't need MagicDNS (e.g. they don't make
outbound connections), this provides a knob to disable all the DNS
functionality.
Rather than a massive refactor today, this uses constant false values
as a deadcode sledgehammer, guided by shotizam to find the largest DNS
functions which survived deadcode.
A future refactor could make it so that the net/dns/resolver and
publicdns packages don't even show up in the import graph (along with
their imports) but really it's already pretty good looking with just
these consts, so it's not at the top of my list to refactor it more
soon.
Also do the same in a few places with the ACME (cert) functionality,
as I saw those while searching for DNS stuff.
Updates #12614
Change-Id: I8e459f595c2fde68ca16503ff61c8ab339871f97
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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And yay: tsnet (and thus k8s-operator etc) no longer depends on
portlist! And LocalBackend is smaller.
Removes 50 KB from the minimal binary.
Updates #12614
Change-Id: Iee04057053dc39305303e8bd1d9599db8368d926
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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profile (#17045)
Updates tailscale/corp#30456
Signed-off-by: Nick O'Neill <nick@tailscale.com>
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dnstype.Resolver adds a boolean UseWithExitNode that controls
whether the resolver should be used in tailscale exit node contexts
(not wireguard exit nodes). If UseWithExitNode resolvers are found,
they are installed as the global resolvers. If no UseWithExitNode resolvers
are found, the exit node resolver continues to be installed as the global
resolver. Split DNS Routes referencing UseWithExitNode resolvers are also
installed.
Updates #8237
Fixes tailscale/corp#30906
Fixes tailscale/corp#30907
Signed-off-by: Michael Ben-Ami <mzb@tailscale.com>
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(#16096)
Like NodeByKey, add an if stmt for checking the NodeId is SelfNode.
Updates #16052
Signed-off-by: Jerry Yan <792602257@qq.com>
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Same with UpdateNetmapDelta.
Updates tailscale/corp#27502
Updates #15160
Signed-off-by: Jordan Whited <jordan@tailscale.com>
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nodeBackend now publishes filter and node changes to eventbus topics
that are consumed by magicsock.Conn
Updates tailscale/corp#27502
Updates tailscale/corp#29543
Signed-off-by: Jordan Whited <jordan@tailscale.com>
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We update LocalBackend to shut down the current nodeBackend
when switching to a different node, and to mark the new node's
nodeBackend as ready when the switch completes.
Updates tailscale/corp#28014
Updates tailscale/corp#29543
Updates #12614
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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We previously kept these methods in local.go when we started moving node-specific state
from LocalBackend to nodeBackend, to make those changes easier to review. But it's time
to move them to node_backend.go.
Updates #cleanup
Updates #12614
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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updates tailscale/corp#28092
Adds metrics for various client events:
* Enabling an exit node
* Enabling a mullvad exit node
* Enabling a preferred exit node
* Setting WantRunning to true/false
* Requesting a bug report ID
* Profile counts
* Profile deletions
* Captive portal detection
Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
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Cleanup after #15866. It was using a mix of "b" and "c" before. But "b"
is ambiguous with LocalBackend's usual "b".
Updates #12614
Change-Id: I8c2e84597555ec3db0d783a00ac1c12549ce6706
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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As just discussed on Slack with @nickkhyl.
Updates #12614
Change-Id: I138dd7eaffb274494297567375d969b4122f3f50
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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