Instead of having the CLI check whether IP forwarding is enabled, ask
tailscaled. It has a better idea. If it's netstack, for instance, the
sysctl values don't matter. And it's possible that only the daemon has
permission to know.
Fixes#1626
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The concrete type being encoded changed from a value to pointer
earlier and this was never adjusted.
(People don't frequently use TS_DEBUG_MAP to see requests, so it went
unnoticed until now.)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
control/controlclient: sign RegisterRequest
Some customers wish to verify eligibility for devices to join their
tailnets using machine identity certificates. TLS client certs could
potentially fulfill this role but the initial customer for this feature
has technical requirements that prevent their use. Instead, the
certificate is loaded from the Windows local machine certificate store
and uses its RSA public key to sign the RegisterRequest message.
There is room to improve the flexibility of this feature in future and
it is currently only tested on Windows (although Darwin theoretically
works too), but this offers a reasonable starting place for now.
Updates tailscale/coral#6
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
IP forwarding is not required when advertising a machine's local IPs
over Tailscale.
Fixes#1435.
Signed-off-by: David Anderson <danderson@tailscale.com>
So the control server can test whether a client's actually present.
Most clients are over HTTP/2, so these pings (to the same host) are
super cheap.
This mimics the earlier goroutine dump mechanism.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This one alone doesn't modify the global dependency map much
(depaware.txt if anything looks slightly worse), but it leave
controlclient as only containing NetworkMap:
bradfitz@tsdev:~/src/tailscale.com/ipn$ grep -F "controlclient." *.go
backend.go: NetMap *controlclient.NetworkMap // new netmap received
fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}})
fake_test.go: b.notify(Notify{NetMap: &controlclient.NetworkMap{}})
handle.go: netmapCache *controlclient.NetworkMap
handle.go:func (h *Handle) NetMap() *controlclient.NetworkMap {
Once that goes into a leaf package, then ipn doesn't depend on
controlclient at all, and then the client gets smaller.
Updates #1278
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.
Previously, any change to endpoints or hostinfo (or hostinfo's
netinfo) would result in the long-running map request HTTP stream
being torn down and restarted, losing all compression context along
with it.
This change makes us instead send a lite map request (OmitPeers: true,
Stream: false) that doesn't subscribe to anything, and then the
coordination server knows to not close other streams for that node
when it recives a lite request.
Fixestailscale/corp#797
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Previously the client had heuristics to calculate which DNS search domains
to set, based on the peers' names. Unfortunately that prevented us from
doing some things we wanted to do server-side related to node sharing.
So, bump MapRequest.Version to 9 to signal that the client only uses the
explicitly configured DNS search domains and doesn't augment it with its own
list.
Updates tailscale/corp#1026
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is a replacement for the key-related parts
of the wireguard-go wgcfg package.
This is almost a straight copy/paste from the wgcfg package.
I have slightly changed some of the exported functions and types
to avoid stutter, added and tweaked some comments,
and removed some now-unused code.
To avoid having wireguard-go depend on this new package,
wgcfg will keep its key types.
We translate into and out of those types at the last minute.
These few remaining uses will be eliminated alongside
the rest of the wgcfg package.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
For now, the server will only send v6 configuration to mapversion 8 clients
as part of an early-adopter program, while we verify that the functionality
is robust.
Signed-off-by: David Anderson <danderson@tailscale.com>
Addresses #964
Still to be done:
- Figure out the correct logging lines in util/systemd
- Figure out if we need to slip the systemd.Status function anywhere
else
- Log util/systemd errors? (most of the errors are of the "you cannot do
anything about this, but it might be a bad idea to crash the program if
it errors" kind)
Assistance in getting this over the finish line would help a lot.
Signed-off-by: Christine Dodrill <me@christine.website>
util/systemd: rename the nonlinux file to appease the magic
Signed-off-by: Christine Dodrill <me@christine.website>
util/systemd: fix package name
Signed-off-by: Christine Dodrill <me@christine.website>
util/systemd: fix review feedback from @mdlayher
Signed-off-by: Christine Dodrill <me@christine.website>
cmd/tailscale{,d}: update depaware manifests
Signed-off-by: Christine Dodrill <me@christine.website>
util/systemd: use sync.Once instead of func init
Signed-off-by: Christine Dodrill <me@christine.website>
control/controlclient: minor review feedback fixes
Signed-off-by: Christine Dodrill <me@christine.website>
{control,ipn,systemd}: fix review feedback
Signed-off-by: Christine Dodrill <me@christine.website>
review feedback fixes
Signed-off-by: Christine Dodrill <me@christine.website>
ipn: fix sprintf call
Signed-off-by: Christine Dodrill <me@christine.website>
ipn: make staticcheck less sad
Signed-off-by: Christine Dodrill <me@christine.website>
ipn: print IP address in connected status
Signed-off-by: Christine Dodrill <me@christine.website>
ipn: review feedback
Signed-off-by: Christine Dodrill <me@christine.website>
final fixups
Signed-off-by: Christine Dodrill <me@christine.website>
After mapver 5's incremental netmap updates & user profiles, much of
the remaining bandwidth for streamed MapResponses were redundant,
unchanged PacketFilters. So make MapRequest.Version 6 mean that nil
means unchanged from the previous value.
Cache DNS results of earlier login.tailscale.com control dials, and use
them for future dials if DNS is slow or broken.
Fixes various issues with trickier setups with the domain's DNS server
behind a subnet router.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
When building with redo, also include the git commit hash
from the proprietary repo, so that we have a precise commit
that identifies all build info (including Go toolchain version).
Add a top-level build script demonstrating to downstream distros
how to burn the right information into builds.
Adjust `tailscale version` to print commit hashes when available.
Fixes#841.
Signed-off-by: David Anderson <danderson@tailscale.com>
