For detecting a non-ideal binary running on the current CPU.
And for helping detect the best Synology package to update to.
Updates #6995
Change-Id: I722f806675b60ce95364471b11c388150c0d4aea
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Add `tailscale version --json` JSON output mode. This will be used
later for a double-opt-in (per node consent like Tailscale SSH +
control config) to let admins do remote upgrades via `tailscale
update` via a c2n call, which would then need to verify the
cmd/tailscale found on disk for running tailscale update corresponds
to the running tailscaled, refusing if anything looks amiss.
Plus JSON output modes are just nice to have, rather than parsing
unstable/fragile/obscure text formats.
Updates #6995
Updates #6907
Change-Id: I7821ab7fbea4612f4b9b7bdc1be1ad1095aca71b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Nodes that are expired, taking into account the time delta calculated
from MapResponse.ControlTime have the newly-added Expired boolean set.
For additional defense-in-depth, also replicate what control does and
clear the Endpoints and DERP fields, and additionally set the node key
to a bogus value.
Updates #6932
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ia2bd6b56064416feee28aef5699ca7090940662a
We're adding two log IDs to facilitate data-plane audit logging: a node-specific
log ID, and a domain-specific log ID.
Updated util/deephash/deephash_test.go with revised expectations for tailcfg.Node.
Updates https://github.com/tailscale/corp/issues/6991
Signed-off-by: Aaron Klotz <aaron@tailscale.com>
As noted in #5617, our documented method of blocking log.tailscale.io
DNS no longer works due to bootstrap DNS.
Instead, provide an explicit flag (--no-logs-no-support) and/or env
variable (TS_NO_LOGS_NO_SUPPORT=true) to explicitly disable logcatcher
uploads. It also sets a bit on Hostinfo to say that the node is in that
mode so we can end any support tickets from such nodes more quickly.
This does not yet provide an easy mechanism for users on some
platforms (such as Windows, macOS, Synology) to set flags/env. On
Linux you'd used /etc/default/tailscaled typically. Making it easier
to set flags for other platforms is tracked in #5114.
Fixes#5617Fixestailscale/corp#1475
Change-Id: I72404e1789f9e56ec47f9b7021b44c025f7a373a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Fix broken build from 255c0472fb
"Oh, that's safe to commit because most tests are passing and it's
just a comment change!", I thought, forgetting I'd added a test that
parses its comments.
Change-Id: Iae93d595e06fec48831215a98adbb270f3bfda05
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
So next time something like #5340 happens we can identify all affected
nodes and have the control plane send them health warnings.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
I documented capver 37 in 4ee64681a but forgot to bump the actual
constant. I've done this previously too, so add a test to prevent
it from happening again.
Change-Id: I6f7659db1243d30672121a384beb386d9f9f5b98
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This lets us distinguish "no IPv6 because the device's ISP doesn't
offer IPv6" from "IPv6 is unavailable/disabled in the OS".
Signed-off-by: David Anderson <danderson@tailscale.com>
And rewrite cloud detection to try to do only zero or one metadata
discovery request for all clouds, only doing a first (or second) as
confidence increases. Work remains for Windows, but a start.
And add Cloud to tailcfg.Hostinfo, which helped with testing using
"tailcfg debug hostinfo".
Updates #4983 (Linux only)
Updates #4984
Change-Id: Ib03337089122ce0cb38c34f724ba4b4812bc614e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit adds a helper to check if Tailscale SSH is enabled. We're
currently checking the SSH_HostKeys field in a few places, but later
plan to add an explicit bool. This helper makes the check and any future
changes easier.
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
From the machines tab its hard to differenciate desktop Linux installs from
server Linux installs. Transmitting this information should make this
determination a lot easier.
Due to the reality that tailscaled is likely a system process, the standard
checks based on XDG_SESSION_TYPE or DISPLAY environment variables are not
possible (those variables won't be set). Instead, we look for listening
unix sockets that are typical of desktop installs.
Signed-off-by: Tom DNetto <tom@tailscale.com>
(The name SSH_HostKeys is bad but SSHHostKeys is worse.)
Updates #3802
Change-Id: I2a889019c9e8b065b668dd58140db4fcab868a91
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This leaves behind a type alias and associated constructor, to allow
for gradual switchover.
Updates #3206.
Signed-off-by: David Anderson <danderson@tailscale.com>
Temporary until #3206 goes away, but having changed the marshal/unmarshal
implementation I got nervous about the new one doing the correct thing.
Thankfully, the test says it does.
Signed-off-by: David Anderson <danderson@tailscale.com>
There are a few remaining uses of testing.AllocsPerRun:
Two in which we only log the number of allocations,
and one in which dynamically calculate the allocations
target based on a different AllocsPerRun run.
This also allows us to tighten the "no allocs"
test in wgengine/filter.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
* Revert "Revert "types/key: add MachinePrivate and MachinePublic.""
This reverts commit 61c3b98a24.
Signed-off-by: David Anderson <danderson@tailscale.com>
* types/key: add ControlPrivate, with custom serialization.
ControlPrivate is just a MachinePrivate that serializes differently
in JSON, to be compatible with how the Tailscale control plane
historically serialized its private key.
Signed-off-by: David Anderson <danderson@tailscale.com>
Plumb throughout the codebase as a replacement for the mixed use of
tailcfg.MachineKey and wgkey.Private/Public.
Signed-off-by: David Anderson <danderson@tailscale.com>
Add MarshalText-like appending variants. Like:
https://pkg.go.dev/inet.af/netaddr#IP.AppendTo
To be used by @josharian's pending deephash optimizations.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This function accounted for ~1% of all allocs by tailscaled.
It is trivial to improve, so may as well.
name old time/op new time/op delta
KeyMarshalText-8 197ns ± 0% 47ns ± 0% -76.12% (p=0.016 n=4+5)
name old alloc/op new alloc/op delta
KeyMarshalText-8 200B ± 0% 80B ± 0% -60.00% (p=0.008 n=5+5)
name old allocs/op new allocs/op delta
KeyMarshalText-8 5.00 ± 0% 1.00 ± 0% -80.00% (p=0.008 n=5+5)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
And fix PeerSeenChange bug where it was ignored unless there were
other peer changes.
Updates tailscale/corp#1574
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Track endpoints internally with a new tailcfg.Endpoint type that
includes a typed netaddr.IPPort (instead of just a string) and
includes a type for how that endpoint was discovered (STUN, local,
etc).
Use []tailcfg.Endpoint instead of []string internally.
At the last second, send it to the control server as the existing
[]string for endpoints, but also include a new parallel
MapRequest.EndpointType []tailcfg.EndpointType, so the control server
can start filtering out less-important endpoint changes from
new-enough clients. Notably, STUN-discovered endpoints can be filtered
out from 1.6+ clients, as they can discover them amongst each other
via CallMeMaybe disco exchanges started over DERP. And STUN endpoints
change a lot, causing a lot of MapResposne updates. But portmapped
endpoints are worth keeping for now, as they they work right away
without requiring the firewall traversal extra RTT dance.
End result will be less control->client bandwidth. (despite negligible
increase in client->control bandwidth)
Updates tailscale/corp#1543
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Old macOS clients required we populate this field to a non-null
value so we were unable to remove this field before.
Instead, keep the field but change its type to a custom empty struct
that can marshal/unmarshal JSON. And lock it in with a test.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The code is not obviously better or worse, but this makes the little warning
triangle in my editor go away, and the distraction removal is worth it.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
Consolidates the node display name logic from each of the clients into
tailcfg.Node. UI clients can use these names directly, rather than computing
them independently.
